diff options
Diffstat (limited to 'drivers/usb')
487 files changed, 12993 insertions, 6388 deletions
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 3a9a0dd4be70..949eca0adebe 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_USB_R8A66597_HCD) += host/ obj-$(CONFIG_USB_FSL_USB2) += host/ obj-$(CONFIG_USB_FOTG210_HCD) += host/ obj-$(CONFIG_USB_MAX3421_HCD) += host/ +obj-$(CONFIG_USB_XEN_HCD) += host/ obj-$(CONFIG_USB_C67X00_HCD) += c67x00/ diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 4ce7cba2b48a..b7f940486414 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -24,7 +24,7 @@ #include <linux/device.h> #include <linux/firmware.h> #include <linux/mutex.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "usbatm.h" @@ -597,8 +597,8 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, timer_setup_on_stack(&timer.timer, cxacru_timeout_kill, 0); mod_timer(&timer.timer, jiffies + msecs_to_jiffies(CMD_TIMEOUT)); wait_for_completion(done); - del_timer_sync(&timer.timer); - destroy_timer_on_stack(&timer.timer); + timer_delete_sync(&timer.timer); + timer_destroy_on_stack(&timer.timer); if (actual_length) *actual_length = urb->actual_length; @@ -1131,6 +1131,10 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, struct cxacru_data *instance; struct usb_device *usb_dev = interface_to_usbdev(intf); struct usb_host_endpoint *cmd_ep = usb_dev->ep_in[CXACRU_EP_CMD]; + static const u8 ep_addrs[] = { + CXACRU_EP_CMD + USB_DIR_IN, + CXACRU_EP_CMD + USB_DIR_OUT, + 0}; int ret; /* instance init */ @@ -1177,6 +1181,17 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, goto fail; } + if (usb_endpoint_xfer_int(&cmd_ep->desc)) + ret = usb_check_int_endpoints(intf, ep_addrs); + else + ret = usb_check_bulk_endpoints(intf, ep_addrs); + + if (!ret) { + usb_err(usbatm_instance, "cxacru_bind: interface has incorrect endpoints\n"); + ret = -ENODEV; + goto fail; + } + if ((cmd_ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { usb_fill_int_urb(instance->rcv_urb, diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 973548b5c15c..27e3d35ee7dd 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -612,7 +612,7 @@ static void speedtch_handle_int(struct urb *int_urb) } if ((count == 6) && !memcmp(up_int, instance->int_data, 6)) { - del_timer(&instance->status_check_timer); + timer_delete(&instance->status_check_timer); atm_info(usbatm, "DSL line goes up\n"); } else if ((count == 6) && !memcmp(down_int, instance->int_data, 6)) { atm_info(usbatm, "DSL line goes down\n"); @@ -688,7 +688,7 @@ static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_de atm_dbg(usbatm, "%s entered\n", __func__); - del_timer_sync(&instance->status_check_timer); + timer_delete_sync(&instance->status_check_timer); /* * Since resubmit_timer and int_urb can schedule themselves and @@ -697,14 +697,14 @@ static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_de instance->int_urb = NULL; /* signal shutdown */ mb(); usb_kill_urb(int_urb); - del_timer_sync(&instance->resubmit_timer); + timer_delete_sync(&instance->resubmit_timer); /* * At this point, speedtch_handle_int and speedtch_resubmit_int * can run or be running, but instance->int_urb == NULL means that * they will not reschedule */ usb_kill_urb(int_urb); - del_timer_sync(&instance->resubmit_timer); + timer_delete_sync(&instance->resubmit_timer); usb_free_urb(int_urb); flush_work(&instance->status_check_work); diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index 16703815be0c..cd0f7b4bd82a 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -25,7 +25,7 @@ #include <linux/slab.h> #include <linux/kernel.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "usbatm.h" @@ -808,7 +808,7 @@ static int check_dsp_e4(const u8 *dsp, int len) if (l > len) return 1; - /* zero is zero regardless endianes */ + /* zero is zero regardless endianness */ } while (blockidx->NotLastBlock); } @@ -1276,7 +1276,7 @@ static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate) sc->stats.phy.dsrate == dsrate) return; - /* Original timming (1Mbit/s) from ADI (used in windows driver) */ + /* Original timing (1Mbit/s) from ADI (used in windows driver) */ timeout = (dsrate <= 1024*1024) ? 0 : 1; ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL); uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n", @@ -1972,7 +1972,7 @@ static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr) if (cmv->bDirection != E1_MODEMTOHOST) goto bad1; - /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to + /* FIXME : ADI930 reply wrong preamble (func = 2, sub = 2) to * the first MEMACCESS cmv. Ignore it... */ if (cmv->bFunction != dsc->function) { diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 2da6615fbb6f..a6a05e85ef8c 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -1158,7 +1158,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, if (i >= num_rcv_urbs) list_add_tail(&urb->urb_list, &channel->list); - vdbg(&intf->dev, "%s: alloced buffer 0x%p buf size %u urb 0x%p", + vdbg(&intf->dev, "%s: allocated buffer 0x%p buf size %u urb 0x%p", __func__, urb->transfer_buffer, urb->transfer_buffer_length, urb); } @@ -1237,8 +1237,8 @@ void usbatm_usb_disconnect(struct usb_interface *intf) for (i = 0; i < num_rcv_urbs + num_snd_urbs; i++) usb_kill_urb(instance->urbs[i]); - del_timer_sync(&instance->rx_channel.delay); - del_timer_sync(&instance->tx_channel.delay); + timer_delete_sync(&instance->rx_channel.delay); + timer_delete_sync(&instance->tx_channel.delay); /* turn usbatm_[rt]x_process into something close to a no-op */ /* no need to take the spinlock */ diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c index bb9d5d7ffefc..8f38e2c5369a 100644 --- a/drivers/usb/c67x00/c67x00-drv.c +++ b/drivers/usb/c67x00/c67x00-drv.c @@ -201,7 +201,7 @@ static void c67x00_drv_remove(struct platform_device *pdev) static struct platform_driver c67x00_driver = { .probe = c67x00_drv_probe, - .remove_new = c67x00_drv_remove, + .remove = c67x00_drv_remove, .driver = { .name = "c67x00", }, diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c index fd1beb10bba7..d9d8dc05b235 100644 --- a/drivers/usb/cdns3/cdns3-gadget.c +++ b/drivers/usb/cdns3/cdns3-gadget.c @@ -1963,6 +1963,7 @@ static irqreturn_t cdns3_device_thread_irq_handler(int irq, void *data) unsigned int bit; unsigned long reg; + local_bh_disable(); spin_lock_irqsave(&priv_dev->lock, flags); reg = readl(&priv_dev->regs->usb_ists); @@ -2004,6 +2005,7 @@ static irqreturn_t cdns3_device_thread_irq_handler(int irq, void *data) irqend: writel(~0, &priv_dev->regs->ep_ien); spin_unlock_irqrestore(&priv_dev->lock, flags); + local_bh_enable(); return ret; } @@ -3468,7 +3470,7 @@ __must_hold(&cdns->lock) return 0; } -static int cdns3_gadget_resume(struct cdns *cdns, bool hibernated) +static int cdns3_gadget_resume(struct cdns *cdns, bool lost_power) { struct cdns3_device *priv_dev = cdns->gadget_dev; @@ -3476,7 +3478,7 @@ static int cdns3_gadget_resume(struct cdns *cdns, bool hibernated) return 0; cdns3_gadget_config(priv_dev); - if (hibernated) + if (lost_power) writel(USB_CONF_DEVEN, &priv_dev->regs->usb_conf); return 0; diff --git a/drivers/usb/cdns3/cdns3-imx.c b/drivers/usb/cdns3/cdns3-imx.c index 281de47e2a3b..a2f041e1707c 100644 --- a/drivers/usb/cdns3/cdns3-imx.c +++ b/drivers/usb/cdns3/cdns3-imx.c @@ -422,7 +422,7 @@ MODULE_DEVICE_TABLE(of, cdns_imx_of_match); static struct platform_driver cdns_imx_driver = { .probe = cdns_imx_probe, - .remove_new = cdns_imx_remove, + .remove = cdns_imx_remove, .driver = { .name = "cdns3-imx", .of_match_table = cdns_imx_of_match, diff --git a/drivers/usb/cdns3/cdns3-pci-wrap.c b/drivers/usb/cdns3/cdns3-pci-wrap.c index 1f6320d98a76..3b3b3dc75f35 100644 --- a/drivers/usb/cdns3/cdns3-pci-wrap.c +++ b/drivers/usb/cdns3/cdns3-pci-wrap.c @@ -37,9 +37,6 @@ struct cdns3_wrap { #define PCI_DRIVER_NAME "cdns3-pci-usbss" #define PLAT_DRIVER_NAME "cdns-usb3" -#define CDNS_VENDOR_ID 0x17cd -#define CDNS_DEVICE_ID 0x0100 - static struct pci_dev *cdns3_get_second_fun(struct pci_dev *pdev) { struct pci_dev *func; @@ -190,7 +187,7 @@ static void cdns3_pci_remove(struct pci_dev *pdev) } static const struct pci_device_id cdns3_pci_ids[] = { - { PCI_DEVICE(CDNS_VENDOR_ID, CDNS_DEVICE_ID), }, + { PCI_VDEVICE(CDNS, PCI_DEVICE_ID_CDNS_USBSS) }, { 0, } }; diff --git a/drivers/usb/cdns3/cdns3-plat.c b/drivers/usb/cdns3/cdns3-plat.c index 3ef8e3c872a3..59ec505e198a 100644 --- a/drivers/usb/cdns3/cdns3-plat.c +++ b/drivers/usb/cdns3/cdns3-plat.c @@ -327,7 +327,7 @@ MODULE_DEVICE_TABLE(of, of_cdns3_match); static struct platform_driver cdns3_driver = { .probe = cdns3_plat_probe, - .remove_new = cdns3_plat_remove, + .remove = cdns3_plat_remove, .driver = { .name = "cdns-usb3", .of_match_table = of_match_ptr(of_cdns3_match), diff --git a/drivers/usb/cdns3/cdns3-starfive.c b/drivers/usb/cdns3/cdns3-starfive.c index c04d196abd87..2ff7f2b48cc2 100644 --- a/drivers/usb/cdns3/cdns3-starfive.c +++ b/drivers/usb/cdns3/cdns3-starfive.c @@ -230,7 +230,7 @@ MODULE_DEVICE_TABLE(of, cdns_starfive_of_match); static struct platform_driver cdns_starfive_driver = { .probe = cdns_starfive_probe, - .remove_new = cdns_starfive_remove, + .remove = cdns_starfive_remove, .driver = { .name = "cdns3-starfive", .of_match_table = cdns_starfive_of_match, diff --git a/drivers/usb/cdns3/cdns3-ti.c b/drivers/usb/cdns3/cdns3-ti.c index 5945c4b1e11f..302ebf6d8e53 100644 --- a/drivers/usb/cdns3/cdns3-ti.c +++ b/drivers/usb/cdns3/cdns3-ti.c @@ -16,6 +16,7 @@ #include <linux/of_platform.h> #include <linux/pm_runtime.h> #include <linux/property.h> +#include "core.h" /* USB Wrapper register offsets */ #define USBSS_PID 0x0 @@ -57,6 +58,7 @@ struct cdns_ti { unsigned vbus_divider:1; struct clk *usb2_refclk; struct clk *lpm_clk; + int usb2_refclk_rate_code; }; static const int cdns_ti_rate_table[] = { /* in KHZ */ @@ -85,15 +87,62 @@ static inline void cdns_ti_writel(struct cdns_ti *data, u32 offset, u32 value) writel(value, data->usbss + offset); } +static struct cdns3_platform_data cdns_ti_pdata = { + .quirks = CDNS3_DRD_SUSPEND_RESIDENCY_ENABLE, /* Errata i2409 */ +}; + +static const struct of_dev_auxdata cdns_ti_auxdata[] = { + { + .compatible = "cdns,usb3", + .platform_data = &cdns_ti_pdata, + }, + {}, +}; + +static void cdns_ti_reset_and_init_hw(struct cdns_ti *data) +{ + u32 reg; + + /* assert RESET */ + reg = cdns_ti_readl(data, USBSS_W1); + reg &= ~USBSS_W1_PWRUP_RST; + cdns_ti_writel(data, USBSS_W1, reg); + + /* set static config */ + reg = cdns_ti_readl(data, USBSS_STATIC_CONFIG); + reg &= ~USBSS1_STATIC_PLL_REF_SEL_MASK; + reg |= data->usb2_refclk_rate_code << USBSS1_STATIC_PLL_REF_SEL_SHIFT; + + reg &= ~USBSS1_STATIC_VBUS_SEL_MASK; + if (data->vbus_divider) + reg |= 1 << USBSS1_STATIC_VBUS_SEL_SHIFT; + + cdns_ti_writel(data, USBSS_STATIC_CONFIG, reg); + reg = cdns_ti_readl(data, USBSS_STATIC_CONFIG); + + /* set USB2_ONLY mode if requested */ + reg = cdns_ti_readl(data, USBSS_W1); + if (data->usb2_only) + reg |= USBSS_W1_USB2_ONLY; + + /* set default modestrap */ + reg |= USBSS_W1_MODESTRAP_SEL; + reg &= ~USBSS_W1_MODESTRAP_MASK; + reg |= USBSS_MODESTRAP_MODE_NONE << USBSS_W1_MODESTRAP_SHIFT; + cdns_ti_writel(data, USBSS_W1, reg); + + /* de-assert RESET */ + reg |= USBSS_W1_PWRUP_RST; + cdns_ti_writel(data, USBSS_W1, reg); +} + static int cdns_ti_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *node = pdev->dev.of_node; struct cdns_ti *data; - int error; - u32 reg; - int rate_code, i; unsigned long rate; + int error, i; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -133,7 +182,17 @@ static int cdns_ti_probe(struct platform_device *pdev) return -EINVAL; } - rate_code = i; + data->usb2_refclk_rate_code = i; + data->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider"); + data->usb2_only = device_property_read_bool(dev, "ti,usb2-only"); + + /* + * The call below to pm_runtime_get_sync() MIGHT reset hardware, if it + * detects it as uninitialised. We want to enforce a reset at probe, + * and so do it manually here. This means the first runtime_resume() + * will be a no-op. + */ + cdns_ti_reset_and_init_hw(data); pm_runtime_enable(dev); error = pm_runtime_get_sync(dev); @@ -142,41 +201,7 @@ static int cdns_ti_probe(struct platform_device *pdev) goto err; } - /* assert RESET */ - reg = cdns_ti_readl(data, USBSS_W1); - reg &= ~USBSS_W1_PWRUP_RST; - cdns_ti_writel(data, USBSS_W1, reg); - - /* set static config */ - reg = cdns_ti_readl(data, USBSS_STATIC_CONFIG); - reg &= ~USBSS1_STATIC_PLL_REF_SEL_MASK; - reg |= rate_code << USBSS1_STATIC_PLL_REF_SEL_SHIFT; - - reg &= ~USBSS1_STATIC_VBUS_SEL_MASK; - data->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider"); - if (data->vbus_divider) - reg |= 1 << USBSS1_STATIC_VBUS_SEL_SHIFT; - - cdns_ti_writel(data, USBSS_STATIC_CONFIG, reg); - reg = cdns_ti_readl(data, USBSS_STATIC_CONFIG); - - /* set USB2_ONLY mode if requested */ - reg = cdns_ti_readl(data, USBSS_W1); - data->usb2_only = device_property_read_bool(dev, "ti,usb2-only"); - if (data->usb2_only) - reg |= USBSS_W1_USB2_ONLY; - - /* set default modestrap */ - reg |= USBSS_W1_MODESTRAP_SEL; - reg &= ~USBSS_W1_MODESTRAP_MASK; - reg |= USBSS_MODESTRAP_MODE_NONE << USBSS_W1_MODESTRAP_SHIFT; - cdns_ti_writel(data, USBSS_W1, reg); - - /* de-assert RESET */ - reg |= USBSS_W1_PWRUP_RST; - cdns_ti_writel(data, USBSS_W1, reg); - - error = of_platform_populate(node, NULL, NULL, dev); + error = of_platform_populate(node, NULL, cdns_ti_auxdata, dev); if (error) { dev_err(dev, "failed to create children: %d\n", error); goto err; @@ -211,6 +236,24 @@ static void cdns_ti_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); } +static int cdns_ti_runtime_resume(struct device *dev) +{ + const u32 mask = USBSS_W1_PWRUP_RST | USBSS_W1_MODESTRAP_SEL; + struct cdns_ti *data = dev_get_drvdata(dev); + u32 w1; + + w1 = cdns_ti_readl(data, USBSS_W1); + if ((w1 & mask) != mask) + cdns_ti_reset_and_init_hw(data); + + return 0; +} + +static const struct dev_pm_ops cdns_ti_pm_ops = { + RUNTIME_PM_OPS(NULL, cdns_ti_runtime_resume, NULL) + SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) +}; + static const struct of_device_id cdns_ti_of_match[] = { { .compatible = "ti,j721e-usb", }, { .compatible = "ti,am64-usb", }, @@ -220,10 +263,11 @@ MODULE_DEVICE_TABLE(of, cdns_ti_of_match); static struct platform_driver cdns_ti_driver = { .probe = cdns_ti_probe, - .remove_new = cdns_ti_remove, + .remove = cdns_ti_remove, .driver = { .name = "cdns3-ti", .of_match_table = cdns_ti_of_match, + .pm = pm_ptr(&cdns_ti_pm_ops), }, }; diff --git a/drivers/usb/cdns3/cdns3-trace.h b/drivers/usb/cdns3/cdns3-trace.h index 40db89e3333c..c4e542f1b9b7 100644 --- a/drivers/usb/cdns3/cdns3-trace.h +++ b/drivers/usb/cdns3/cdns3-trace.h @@ -33,7 +33,7 @@ TRACE_EVENT(cdns3_halt, __field(u8, flush) ), TP_fast_assign( - __assign_str(name, ep_priv->name); + __assign_str(name); __entry->halt = halt; __entry->flush = flush; ), @@ -49,8 +49,8 @@ TRACE_EVENT(cdns3_wa1, __string(msg, msg) ), TP_fast_assign( - __assign_str(ep_name, ep_priv->name); - __assign_str(msg, msg); + __assign_str(ep_name); + __assign_str(msg); ), TP_printk("WA1: %s %s", __get_str(ep_name), __get_str(msg)) ); @@ -63,8 +63,8 @@ TRACE_EVENT(cdns3_wa2, __string(msg, msg) ), TP_fast_assign( - __assign_str(ep_name, ep_priv->name); - __assign_str(msg, msg); + __assign_str(ep_name); + __assign_str(msg); ), TP_printk("WA2: %s %s", __get_str(ep_name), __get_str(msg)) ); @@ -77,7 +77,7 @@ DECLARE_EVENT_CLASS(cdns3_log_doorbell, __field(u32, ep_trbaddr) ), TP_fast_assign( - __assign_str(name, ep_name); + __assign_str(name); __entry->ep_trbaddr = ep_trbaddr; ), TP_printk("%s, ep_trbaddr %08x", __get_str(name), @@ -125,7 +125,7 @@ DECLARE_EVENT_CLASS(cdns3_log_epx_irq, __field(u32, use_streams) ), TP_fast_assign( - __assign_str(ep_name, priv_ep->name); + __assign_str(ep_name); __entry->ep_sts = readl(&priv_dev->regs->ep_sts); __entry->ep_traddr = readl(&priv_dev->regs->ep_traddr); __entry->ep_last_sid = priv_ep->last_stream_id; @@ -214,7 +214,7 @@ DECLARE_EVENT_CLASS(cdns3_log_request, __field(unsigned int, stream_id) ), TP_fast_assign( - __assign_str(name, req->priv_ep->name); + __assign_str(name); __entry->req = req; __entry->buf = req->request.buf; __entry->actual = req->request.actual; @@ -294,7 +294,7 @@ DECLARE_EVENT_CLASS(cdns3_stream_split_transfer_len, __field(unsigned int, stream_id) ), TP_fast_assign( - __assign_str(name, req->priv_ep->name); + __assign_str(name); __entry->req = req; __entry->actual = req->request.length; __entry->length = req->request.actual; @@ -329,7 +329,7 @@ DECLARE_EVENT_CLASS(cdns3_log_aligned_request, __field(u32, aligned_buf_size) ), TP_fast_assign( - __assign_str(name, priv_req->priv_ep->name); + __assign_str(name); __entry->req = &priv_req->request; __entry->buf = priv_req->request.buf; __entry->dma = priv_req->request.dma; @@ -364,7 +364,7 @@ DECLARE_EVENT_CLASS(cdns3_log_map_request, __field(dma_addr_t, dma) ), TP_fast_assign( - __assign_str(name, priv_req->priv_ep->name); + __assign_str(name); __entry->req = &priv_req->request; __entry->buf = priv_req->request.buf; __entry->dma = priv_req->request.dma; @@ -395,7 +395,7 @@ DECLARE_EVENT_CLASS(cdns3_log_trb, __field(unsigned int, last_stream_id) ), TP_fast_assign( - __assign_str(name, priv_ep->name); + __assign_str(name); __entry->trb = trb; __entry->buffer = le32_to_cpu(trb->buffer); __entry->length = le32_to_cpu(trb->length); @@ -467,7 +467,7 @@ DECLARE_EVENT_CLASS(cdns3_log_ep, __field(u8, dequeue) ), TP_fast_assign( - __assign_str(name, priv_ep->name); + __assign_str(name); __entry->maxpacket = priv_ep->endpoint.maxpacket; __entry->maxpacket_limit = priv_ep->endpoint.maxpacket_limit; __entry->max_streams = priv_ep->endpoint.max_streams; diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c index 4a3f0f958256..4824a10df07e 100644 --- a/drivers/usb/cdns3/cdnsp-gadget.c +++ b/drivers/usb/cdns3/cdnsp-gadget.c @@ -15,6 +15,7 @@ #include <linux/delay.h> #include <linux/log2.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/pci.h> #include <linux/irq.h> #include <linux/dmi.h> @@ -138,6 +139,26 @@ static void cdnsp_clear_port_change_bit(struct cdnsp_device *pdev, (portsc & PORT_CHANGE_BITS), port_regs); } +static void cdnsp_set_apb_timeout_value(struct cdnsp_device *pdev) +{ + struct cdns *cdns = dev_get_drvdata(pdev->dev); + __le32 __iomem *reg; + void __iomem *base; + u32 offset = 0; + u32 val; + + if (!cdns->override_apb_timeout) + return; + + base = &pdev->cap_regs->hc_capbase; + offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP); + reg = base + offset + REG_CHICKEN_BITS_3_OFFSET; + + val = le32_to_cpu(readl(reg)); + val = CHICKEN_APB_TIMEOUT_SET(val, cdns->override_apb_timeout); + writel(cpu_to_le32(val), reg); +} + static void cdnsp_set_chicken_bits_2(struct cdnsp_device *pdev, u32 bit) { __le32 __iomem *reg; @@ -1671,12 +1692,12 @@ static int cdnsp_gadget_init_endpoints(struct cdnsp_device *pdev) "CTRL: %s, INT: %s, BULK: %s, ISOC %s, " "SupDir IN: %s, OUT: %s\n", pep->name, 1024, - (pep->endpoint.caps.type_control) ? "yes" : "no", - (pep->endpoint.caps.type_int) ? "yes" : "no", - (pep->endpoint.caps.type_bulk) ? "yes" : "no", - (pep->endpoint.caps.type_iso) ? "yes" : "no", - (pep->endpoint.caps.dir_in) ? "yes" : "no", - (pep->endpoint.caps.dir_out) ? "yes" : "no"); + str_yes_no(pep->endpoint.caps.type_control), + str_yes_no(pep->endpoint.caps.type_int), + str_yes_no(pep->endpoint.caps.type_bulk), + str_yes_no(pep->endpoint.caps.type_iso), + str_yes_no(pep->endpoint.caps.dir_in), + str_yes_no(pep->endpoint.caps.dir_out)); INIT_LIST_HEAD(&pep->pending_list); } @@ -1772,6 +1793,8 @@ static void cdnsp_get_rev_cap(struct cdnsp_device *pdev) reg += cdnsp_find_next_ext_cap(reg, 0, RTL_REV_CAP); pdev->rev_cap = reg; + pdev->rtl_revision = readl(&pdev->rev_cap->rtl_revision); + dev_info(pdev->dev, "Rev: %08x/%08x, eps: %08x, buff: %08x/%08x\n", readl(&pdev->rev_cap->ctrl_revision), readl(&pdev->rev_cap->rtl_revision), @@ -1797,6 +1820,15 @@ static int cdnsp_gen_setup(struct cdnsp_device *pdev) pdev->hci_version = HC_VERSION(pdev->hcc_params); pdev->hcc_params = readl(&pdev->cap_regs->hcc_params); + /* + * Override the APB timeout value to give the controller more time for + * enabling UTMI clock and synchronizing APB and UTMI clock domains. + * This fix is platform specific and is required to fixes issue with + * reading incorrect value from PORTSC register after resuming + * from L1 state. + */ + cdnsp_set_apb_timeout_value(pdev); + cdnsp_get_rev_cap(pdev); /* Make sure the Device Controller is halted. */ @@ -1973,7 +2005,7 @@ static int cdnsp_gadget_suspend(struct cdns *cdns, bool do_wakeup) return 0; } -static int cdnsp_gadget_resume(struct cdns *cdns, bool hibernated) +static int cdnsp_gadget_resume(struct cdns *cdns, bool lost_power) { struct cdnsp_device *pdev = cdns->gadget_dev; enum usb_device_speed max_speed; diff --git a/drivers/usb/cdns3/cdnsp-gadget.h b/drivers/usb/cdns3/cdnsp-gadget.h index dbee6f085277..12534be52f39 100644 --- a/drivers/usb/cdns3/cdnsp-gadget.h +++ b/drivers/usb/cdns3/cdnsp-gadget.h @@ -520,6 +520,9 @@ struct cdnsp_rev_cap { #define REG_CHICKEN_BITS_2_OFFSET 0x48 #define CHICKEN_XDMA_2_TP_CACHE_DIS BIT(28) +#define REG_CHICKEN_BITS_3_OFFSET 0x4C +#define CHICKEN_APB_TIMEOUT_SET(p, val) (((p) & ~GENMASK(21, 0)) | (val)) + /* XBUF Extended Capability ID. */ #define XBUF_CAP_ID 0xCB #define XBUF_RX_TAG_MASK_0_OFFSET 0x1C @@ -811,6 +814,7 @@ struct cdnsp_stream_info { * generate Missed Service Error Event. * Set skip flag when receive a Missed Service Error Event and * process the missed tds on the endpoint ring. + * @wa1_nop_trb: hold pointer to NOP trb. */ struct cdnsp_ep { struct usb_ep endpoint; @@ -838,6 +842,8 @@ struct cdnsp_ep { #define EP_UNCONFIGURED BIT(7) bool skip; + union cdnsp_trb *wa1_nop_trb; + }; /** @@ -1354,6 +1360,7 @@ struct cdnsp_port { * @rev_cap: Controller Capabilities Registers. * @hcs_params1: Cached register copies of read-only HCSPARAMS1 * @hcc_params: Cached register copies of read-only HCCPARAMS1 + * @rtl_revision: Cached controller rtl revision. * @setup: Temporary buffer for setup packet. * @ep0_preq: Internal allocated request used during enumeration. * @ep0_stage: ep0 stage during enumeration process. @@ -1408,6 +1415,8 @@ struct cdnsp_device { __u32 hcs_params1; __u32 hcs_params3; __u32 hcc_params; + #define RTL_REVISION_NEW_LPM 0x2700 + __u32 rtl_revision; /* Lock used in interrupt thread context. */ spinlock_t lock; struct usb_ctrlrequest setup; diff --git a/drivers/usb/cdns3/cdnsp-pci.c b/drivers/usb/cdns3/cdnsp-pci.c index 0725668ffea4..8c361b8394e9 100644 --- a/drivers/usb/cdns3/cdnsp-pci.c +++ b/drivers/usb/cdns3/cdnsp-pci.c @@ -28,10 +28,7 @@ #define PCI_DRIVER_NAME "cdns-pci-usbssp" #define PLAT_DRIVER_NAME "cdns-usbssp" -#define CDNS_VENDOR_ID 0x17cd -#define CDNS_DEVICE_ID 0x0200 -#define CDNS_DRD_ID 0x0100 -#define CDNS_DRD_IF (PCI_CLASS_SERIAL_USB << 8 | 0x80) +#define CHICKEN_APB_TIMEOUT_VALUE 0x1C20 static struct pci_dev *cdnsp_get_second_fun(struct pci_dev *pdev) { @@ -40,10 +37,10 @@ static struct pci_dev *cdnsp_get_second_fun(struct pci_dev *pdev) * Platform has two function. The fist keeps resources for * Host/Device while the secon keeps resources for DRD/OTG. */ - if (pdev->device == CDNS_DEVICE_ID) - return pci_get_device(pdev->vendor, CDNS_DRD_ID, NULL); - else if (pdev->device == CDNS_DRD_ID) - return pci_get_device(pdev->vendor, CDNS_DEVICE_ID, NULL); + if (pdev->device == PCI_DEVICE_ID_CDNS_USBSSP) + return pci_get_device(pdev->vendor, PCI_DEVICE_ID_CDNS_USBSS, NULL); + if (pdev->device == PCI_DEVICE_ID_CDNS_USBSS) + return pci_get_device(pdev->vendor, PCI_DEVICE_ID_CDNS_USBSSP, NULL); return NULL; } @@ -144,6 +141,14 @@ static int cdnsp_pci_probe(struct pci_dev *pdev, cdnsp->otg_irq = pdev->irq; } + /* + * Cadence PCI based platform require some longer timeout for APB + * to fixes domain clock synchronization issue after resuming + * controller from L1 state. + */ + cdnsp->override_apb_timeout = CHICKEN_APB_TIMEOUT_VALUE; + pci_set_drvdata(pdev, cdnsp); + if (pci_is_enabled(func)) { cdnsp->dev = dev; cdnsp->gadget_init = cdnsp_gadget_init; @@ -153,8 +158,6 @@ static int cdnsp_pci_probe(struct pci_dev *pdev, goto free_cdnsp; } - pci_set_drvdata(pdev, cdnsp); - device_wakeup_enable(&pdev->dev); if (pci_dev_run_wake(pdev)) pm_runtime_put_noidle(&pdev->dev); @@ -220,18 +223,18 @@ static const struct dev_pm_ops cdnsp_pci_pm_ops = { }; static const struct pci_device_id cdnsp_pci_ids[] = { - { PCI_VENDOR_ID_CDNS, CDNS_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_SERIAL_USB_DEVICE, PCI_ANY_ID }, - { PCI_VENDOR_ID_CDNS, CDNS_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, - CDNS_DRD_IF, PCI_ANY_ID }, - { PCI_VENDOR_ID_CDNS, CDNS_DRD_ID, PCI_ANY_ID, PCI_ANY_ID, - CDNS_DRD_IF, PCI_ANY_ID }, + { PCI_DEVICE(PCI_VENDOR_ID_CDNS, PCI_DEVICE_ID_CDNS_USBSSP), + .class = PCI_CLASS_SERIAL_USB_DEVICE }, + { PCI_DEVICE(PCI_VENDOR_ID_CDNS, PCI_DEVICE_ID_CDNS_USBSSP), + .class = PCI_CLASS_SERIAL_USB_CDNS }, + { PCI_DEVICE(PCI_VENDOR_ID_CDNS, PCI_DEVICE_ID_CDNS_USBSS), + .class = PCI_CLASS_SERIAL_USB_CDNS }, { 0, } }; static struct pci_driver cdnsp_pci_driver = { .name = "cdnsp-pci", - .id_table = &cdnsp_pci_ids[0], + .id_table = cdnsp_pci_ids, .probe = cdnsp_pci_probe, .remove = cdnsp_pci_remove, .driver = { diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c index 02f297f5637d..fd06cb85c4ea 100644 --- a/drivers/usb/cdns3/cdnsp-ring.c +++ b/drivers/usb/cdns3/cdnsp-ring.c @@ -308,7 +308,8 @@ static bool cdnsp_ring_ep_doorbell(struct cdnsp_device *pdev, writel(db_value, reg_addr); - cdnsp_force_l0_go(pdev); + if (pdev->rtl_revision < RTL_REVISION_NEW_LPM) + cdnsp_force_l0_go(pdev); /* Doorbell was set. */ return true; @@ -402,7 +403,7 @@ static u64 cdnsp_get_hw_deq(struct cdnsp_device *pdev, struct cdnsp_stream_ctx *st_ctx; struct cdnsp_ep *pep; - pep = &pdev->eps[stream_id]; + pep = &pdev->eps[ep_index]; if (pep->ep_state & EP_HAS_STREAMS) { st_ctx = &pep->stream_info.stream_ctx_array[stream_id]; @@ -718,7 +719,8 @@ int cdnsp_remove_request(struct cdnsp_device *pdev, seg = cdnsp_trb_in_td(pdev, cur_td->start_seg, cur_td->first_trb, cur_td->last_trb, hw_deq); - if (seg && (pep->ep_state & EP_ENABLED)) + if (seg && (pep->ep_state & EP_ENABLED) && + !(pep->ep_state & EP_DIS_IN_RROGRESS)) cdnsp_find_new_dequeue_state(pdev, pep, preq->request.stream_id, cur_td, &deq_state); else @@ -736,7 +738,8 @@ int cdnsp_remove_request(struct cdnsp_device *pdev, * During disconnecting all endpoint will be disabled so we don't * have to worry about updating dequeue pointer. */ - if (pdev->cdnsp_state & CDNSP_STATE_DISCONNECT_PENDING) { + if (pdev->cdnsp_state & CDNSP_STATE_DISCONNECT_PENDING || + pep->ep_state & EP_DIS_IN_RROGRESS) { status = -ESHUTDOWN; ret = cdnsp_cmd_set_deq(pdev, pep, &deq_state); } @@ -1905,6 +1908,23 @@ int cdnsp_queue_bulk_tx(struct cdnsp_device *pdev, struct cdnsp_request *preq) return ret; /* + * workaround 1: STOP EP command on LINK TRB with TC bit set to 1 + * causes that internal cycle bit can have incorrect state after + * command complete. In consequence empty transfer ring can be + * incorrectly detected when EP is resumed. + * NOP TRB before LINK TRB avoid such scenario. STOP EP command is + * then on NOP TRB and internal cycle bit is not changed and have + * correct value. + */ + if (pep->wa1_nop_trb) { + field = le32_to_cpu(pep->wa1_nop_trb->trans_event.flags); + field ^= TRB_CYCLE; + + pep->wa1_nop_trb->trans_event.flags = cpu_to_le32(field); + pep->wa1_nop_trb = NULL; + } + + /* * Don't give the first TRB to the hardware (by toggling the cycle bit) * until we've finished creating all the other TRBs. The ring's cycle * state may change as we enqueue the other TRBs, so save it too. @@ -1999,6 +2019,17 @@ int cdnsp_queue_bulk_tx(struct cdnsp_device *pdev, struct cdnsp_request *preq) send_addr = addr; } + if (cdnsp_trb_is_link(ring->enqueue + 1)) { + field = TRB_TYPE(TRB_TR_NOOP) | TRB_IOC; + if (!ring->cycle_state) + field |= TRB_CYCLE; + + pep->wa1_nop_trb = ring->enqueue; + + cdnsp_queue_trb(pdev, ring, 0, 0x0, 0x0, + TRB_INTR_TARGET(0), field); + } + cdnsp_check_trb_math(preq, enqd_len); ret = cdnsp_giveback_first_trb(pdev, pep, preq->request.stream_id, start_cycle, start_trb); diff --git a/drivers/usb/cdns3/cdnsp-trace.h b/drivers/usb/cdns3/cdnsp-trace.h index 4b51011eb00b..f2bcf77a5d0a 100644 --- a/drivers/usb/cdns3/cdnsp-trace.h +++ b/drivers/usb/cdns3/cdnsp-trace.h @@ -48,7 +48,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_ep, __field(u8, drbls_count) ), TP_fast_assign( - __assign_str(name, pep->name); + __assign_str(name); __entry->state = pep->ep_state; __entry->stream_id = stream_id; __entry->enabled = pep->ep_state & EP_HAS_STREAMS; @@ -138,7 +138,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_simple, __string(text, msg) ), TP_fast_assign( - __assign_str(text, msg); + __assign_str(text); ), TP_printk("%s", __get_str(text)) ); @@ -303,7 +303,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_bounce, __field(unsigned int, unalign) ), TP_fast_assign( - __assign_str(name, preq->pep->name); + __assign_str(name); __entry->new_buf_len = new_buf_len; __entry->offset = offset; __entry->dma = dma; @@ -470,7 +470,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_request, ), TP_fast_assign( - __assign_str(name, req->pep->name); + __assign_str(name); __entry->request = &req->request; __entry->preq = req; __entry->buf = req->request.buf; @@ -674,7 +674,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_td_info, __field(dma_addr_t, trb_dma) ), TP_fast_assign( - __assign_str(name, preq->pep->name); + __assign_str(name); __entry->request = &preq->request; __entry->preq = preq; __entry->first_trb = preq->td.first_trb; diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c index 465e9267b49c..1243a5cea91b 100644 --- a/drivers/usb/cdns3/core.c +++ b/drivers/usb/cdns3/core.c @@ -524,14 +524,13 @@ EXPORT_SYMBOL_GPL(cdns_suspend); int cdns_resume(struct cdns *cdns) { + bool power_lost = cdns_power_is_lost(cdns); enum usb_role real_role; bool role_changed = false; int ret = 0; - if (cdns_power_is_lost(cdns)) { - if (cdns->role_sw) { - cdns->role = cdns_role_get(cdns->role_sw); - } else { + if (power_lost) { + if (!cdns->role_sw) { real_role = cdns_hw_role_state_machine(cdns); if (real_role != cdns->role) { ret = cdns_hw_role_switch(cdns); @@ -553,7 +552,7 @@ int cdns_resume(struct cdns *cdns) } if (cdns->roles[cdns->role]->resume) - cdns->roles[cdns->role]->resume(cdns, cdns_power_is_lost(cdns)); + cdns->roles[cdns->role]->resume(cdns, power_lost); return 0; } diff --git a/drivers/usb/cdns3/core.h b/drivers/usb/cdns3/core.h index 81a9c9d6be08..801be9e61340 100644 --- a/drivers/usb/cdns3/core.h +++ b/drivers/usb/cdns3/core.h @@ -30,7 +30,7 @@ struct cdns_role_driver { int (*start)(struct cdns *cdns); void (*stop)(struct cdns *cdns); int (*suspend)(struct cdns *cdns, bool do_wakeup); - int (*resume)(struct cdns *cdns, bool hibernated); + int (*resume)(struct cdns *cdns, bool lost_power); const char *name; #define CDNS_ROLE_STATE_INACTIVE 0 #define CDNS_ROLE_STATE_ACTIVE 1 @@ -44,6 +44,7 @@ struct cdns3_platform_data { bool suspend, bool wakeup); unsigned long quirks; #define CDNS3_DEFAULT_PM_RUNTIME_ALLOW BIT(0) +#define CDNS3_DRD_SUSPEND_RESIDENCY_ENABLE BIT(1) }; /** @@ -78,6 +79,8 @@ struct cdns3_platform_data { * @pdata: platform data from glue layer * @lock: spinlock structure * @xhci_plat_data: xhci private data structure pointer + * @override_apb_timeout: hold value of APB timeout. For value 0 the default + * value in CHICKEN_BITS_3 will be preserved. * @gadget_init: pointer to gadget initialization function */ struct cdns { @@ -116,6 +119,7 @@ struct cdns { struct cdns3_platform_data *pdata; spinlock_t lock; struct xhci_plat_priv *xhci_plat_data; + u32 override_apb_timeout; int (*gadget_init)(struct cdns *cdns); }; diff --git a/drivers/usb/cdns3/drd.c b/drivers/usb/cdns3/drd.c index 8b936a2e93a0..84fb38a5723a 100644 --- a/drivers/usb/cdns3/drd.c +++ b/drivers/usb/cdns3/drd.c @@ -389,7 +389,7 @@ static irqreturn_t cdns_drd_irq(int irq, void *data) int cdns_drd_init(struct cdns *cdns) { void __iomem *regs; - u32 state; + u32 state, reg; int ret; regs = devm_ioremap_resource(cdns->dev, &cdns->otg_res); @@ -433,6 +433,14 @@ int cdns_drd_init(struct cdns *cdns) cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) &cdns->otg_v1_regs->ien; writel(1, &cdns->otg_v1_regs->simulate); + + if (cdns->pdata && + (cdns->pdata->quirks & CDNS3_DRD_SUSPEND_RESIDENCY_ENABLE)) { + reg = readl(&cdns->otg_v1_regs->susp_ctrl); + reg |= SUSP_CTRL_SUSPEND_RESIDENCY_ENABLE; + writel(reg, &cdns->otg_v1_regs->susp_ctrl); + } + cdns->version = CDNS3_CONTROLLER_V1; } else { dev_err(cdns->dev, "not supported DID=0x%08x\n", state); diff --git a/drivers/usb/cdns3/drd.h b/drivers/usb/cdns3/drd.h index d72370c321d3..1e2aee14d629 100644 --- a/drivers/usb/cdns3/drd.h +++ b/drivers/usb/cdns3/drd.h @@ -193,6 +193,9 @@ struct cdns_otg_irq_regs { /* OTGREFCLK - bitmasks */ #define OTGREFCLK_STB_CLK_SWITCH_EN BIT(31) +/* SUPS_CTRL - bitmasks */ +#define SUSP_CTRL_SUSPEND_RESIDENCY_ENABLE BIT(17) + /* OVERRIDE - bitmasks */ #define OVERRIDE_IDPULLUP BIT(0) /* Only for CDNS3_CONTROLLER_V0 version */ diff --git a/drivers/usb/cdns3/host.c b/drivers/usb/cdns3/host.c index ceca4d839dfd..f0df114c2b53 100644 --- a/drivers/usb/cdns3/host.c +++ b/drivers/usb/cdns3/host.c @@ -62,7 +62,9 @@ static const struct xhci_plat_priv xhci_plat_cdns3_xhci = { .resume_quirk = xhci_cdns3_resume_quirk, }; -static const struct xhci_plat_priv xhci_plat_cdnsp_xhci; +static const struct xhci_plat_priv xhci_plat_cdnsp_xhci = { + .quirks = XHCI_CDNS_SCTX_QUIRK, +}; static int __cdns_host_init(struct cdns *cdns) { @@ -136,6 +138,16 @@ static void cdns_host_exit(struct cdns *cdns) cdns_drd_host_off(cdns); } +static int cdns_host_resume(struct cdns *cdns, bool power_lost) +{ + struct usb_hcd *hcd = platform_get_drvdata(cdns->host_dev); + struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); + + priv->power_lost = power_lost; + + return 0; +} + int cdns_host_init(struct cdns *cdns) { struct cdns_role_driver *rdrv; @@ -146,6 +158,7 @@ int cdns_host_init(struct cdns *cdns) rdrv->start = __cdns_host_init; rdrv->stop = cdns_host_exit; + rdrv->resume = cdns_host_resume; rdrv->state = CDNS_ROLE_STATE_INACTIVE; rdrv->name = "host"; diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 2a38e1eb6546..97437de52ef6 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -25,6 +25,7 @@ #define TD_PAGE_COUNT 5 #define CI_HDRC_PAGE_SIZE 4096ul /* page size for TD's */ #define ENDPT_MAX 32 +#define CI_MAX_REQ_SIZE (4 * CI_HDRC_PAGE_SIZE) #define CI_MAX_BUF_SIZE (TD_PAGE_COUNT * CI_HDRC_PAGE_SIZE) /****************************************************************************** @@ -260,6 +261,7 @@ struct ci_hdrc { bool b_sess_valid_event; bool imx28_write_fix; bool has_portsc_pec_bug; + bool has_short_pkt_limit; bool supports_runtime_pm; bool in_lpm; bool wakeup_int; diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index ae9a6a17ec6e..4f8bfd242b59 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -128,7 +128,7 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev) * In case the fsl,usbmisc property is not present this device doesn't * need usbmisc. Return NULL (which is no error here) */ - if (!of_get_property(np, "fsl,usbmisc", NULL)) + if (!of_property_present(np, "fsl,usbmisc")) return NULL; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); @@ -212,7 +212,7 @@ static int imx_get_clks(struct device *dev) /* Get wakeup clock. Not all of the platforms need to * handle this clock. So make it optional. */ - data->clk_wakeup = devm_clk_get_optional(dev, "usb_wakeup_clk"); + data->clk_wakeup = devm_clk_get_optional(dev, "usb_wakeup"); if (IS_ERR(data->clk_wakeup)) ret = dev_err_probe(dev, PTR_ERR(data->clk_wakeup), "Failed to get wakeup clk\n"); @@ -336,12 +336,20 @@ static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event) return ret; } +static void ci_hdrc_imx_disable_regulator(void *arg) +{ + struct ci_hdrc_imx_data *data = arg; + + regulator_disable(data->hsic_pad_regulator); +} + static int ci_hdrc_imx_probe(struct platform_device *pdev) { struct ci_hdrc_imx_data *data; struct ci_hdrc_platform_data pdata = { .name = dev_name(&pdev->dev), .capoffset = DEF_CAPOFFSET, + .flags = CI_HDRC_HAS_SHORT_PKT_LIMIT, .notify_event = ci_hdrc_imx_notify_event, }; int ret; @@ -369,25 +377,36 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) data->pinctrl = devm_pinctrl_get(dev); if (PTR_ERR(data->pinctrl) == -ENODEV) data->pinctrl = NULL; - else if (IS_ERR(data->pinctrl)) - return dev_err_probe(dev, PTR_ERR(data->pinctrl), + else if (IS_ERR(data->pinctrl)) { + ret = dev_err_probe(dev, PTR_ERR(data->pinctrl), "pinctrl get failed\n"); + goto err_put; + } data->hsic_pad_regulator = devm_regulator_get_optional(dev, "hsic"); if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) { /* no pad regulator is needed */ data->hsic_pad_regulator = NULL; - } else if (IS_ERR(data->hsic_pad_regulator)) - return dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator), + } else if (IS_ERR(data->hsic_pad_regulator)) { + ret = dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator), "Get HSIC pad regulator error\n"); + goto err_put; + } if (data->hsic_pad_regulator) { ret = regulator_enable(data->hsic_pad_regulator); if (ret) { dev_err(dev, "Failed to enable HSIC pad regulator\n"); - return ret; + goto err_put; + } + ret = devm_add_action_or_reset(dev, + ci_hdrc_imx_disable_regulator, data); + if (ret) { + dev_err(dev, + "Failed to add regulator devm action\n"); + goto err_put; } } } @@ -401,13 +420,14 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) dev_err(dev, "pinctrl_hsic_idle lookup failed, err=%ld\n", PTR_ERR(pinctrl_hsic_idle)); - return PTR_ERR(pinctrl_hsic_idle); + ret = PTR_ERR(pinctrl_hsic_idle); + goto err_put; } ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle); if (ret) { dev_err(dev, "hsic_idle select failed, err=%d\n", ret); - return ret; + goto err_put; } data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl, @@ -416,7 +436,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) dev_err(dev, "pinctrl_hsic_active lookup failed, err=%ld\n", PTR_ERR(data->pinctrl_hsic_active)); - return PTR_ERR(data->pinctrl_hsic_active); + ret = PTR_ERR(data->pinctrl_hsic_active); + goto err_put; } } @@ -425,11 +446,11 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) ret = imx_get_clks(dev); if (ret) - goto disable_hsic_regulator; + goto qos_remove_request; ret = imx_prepare_enable_clks(dev); if (ret) - goto disable_hsic_regulator; + goto qos_remove_request; ret = clk_prepare_enable(data->clk_wakeup); if (ret) @@ -463,7 +484,11 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) { pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL; data->override_phy_control = true; - usb_phy_init(pdata.usb_phy); + ret = usb_phy_init(pdata.usb_phy); + if (ret) { + dev_err(dev, "Failed to init phy\n"); + goto err_clk; + } } if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) @@ -472,7 +497,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) ret = imx_usbmisc_init(data->usbmisc_data); if (ret) { dev_err(dev, "usbmisc init failed, ret=%d\n", ret); - goto err_clk; + goto phy_shutdown; } data->ci_pdev = ci_hdrc_add_device(dev, @@ -481,7 +506,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) if (IS_ERR(data->ci_pdev)) { ret = PTR_ERR(data->ci_pdev); dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n"); - goto err_clk; + goto phy_shutdown; } if (data->usbmisc_data) { @@ -515,17 +540,20 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) disable_device: ci_hdrc_remove_device(data->ci_pdev); +phy_shutdown: + if (data->override_phy_control) + usb_phy_shutdown(data->phy); err_clk: clk_disable_unprepare(data->clk_wakeup); err_wakeup_clk: imx_disable_unprepare_clks(dev); -disable_hsic_regulator: - if (data->hsic_pad_regulator) - /* don't overwrite original ret (cf. EPROBE_DEFER) */ - regulator_disable(data->hsic_pad_regulator); +qos_remove_request: if (pdata.flags & CI_HDRC_PMQOS) cpu_latency_qos_remove_request(&data->pm_qos_req); data->ci_pdev = NULL; +err_put: + if (data->usbmisc_data) + put_device(data->usbmisc_data->dev); return ret; } @@ -547,9 +575,9 @@ static void ci_hdrc_imx_remove(struct platform_device *pdev) clk_disable_unprepare(data->clk_wakeup); if (data->plat_data->flags & CI_HDRC_PMQOS) cpu_latency_qos_remove_request(&data->pm_qos_req); - if (data->hsic_pad_regulator) - regulator_disable(data->hsic_pad_regulator); } + if (data->usbmisc_data) + put_device(data->usbmisc_data->dev); } static void ci_hdrc_imx_shutdown(struct platform_device *pdev) @@ -557,7 +585,7 @@ static void ci_hdrc_imx_shutdown(struct platform_device *pdev) ci_hdrc_imx_remove(pdev); } -static int __maybe_unused imx_controller_suspend(struct device *dev, +static int imx_controller_suspend(struct device *dev, pm_message_t msg) { struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); @@ -582,7 +610,7 @@ static int __maybe_unused imx_controller_suspend(struct device *dev, return 0; } -static int __maybe_unused imx_controller_resume(struct device *dev, +static int imx_controller_resume(struct device *dev, pm_message_t msg) { struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); @@ -618,7 +646,7 @@ clk_disable: return ret; } -static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev) +static int ci_hdrc_imx_suspend(struct device *dev) { int ret; @@ -636,7 +664,7 @@ static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev) return ret; } -static int __maybe_unused ci_hdrc_imx_resume(struct device *dev) +static int ci_hdrc_imx_resume(struct device *dev) { struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); int ret; @@ -652,7 +680,7 @@ static int __maybe_unused ci_hdrc_imx_resume(struct device *dev) return ret; } -static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev) +static int ci_hdrc_imx_runtime_suspend(struct device *dev) { struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); @@ -664,24 +692,23 @@ static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev) return imx_controller_suspend(dev, PMSG_AUTO_SUSPEND); } -static int __maybe_unused ci_hdrc_imx_runtime_resume(struct device *dev) +static int ci_hdrc_imx_runtime_resume(struct device *dev) { return imx_controller_resume(dev, PMSG_AUTO_RESUME); } static const struct dev_pm_ops ci_hdrc_imx_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume) - SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend, - ci_hdrc_imx_runtime_resume, NULL) + SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume) + RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend, ci_hdrc_imx_runtime_resume, NULL) }; static struct platform_driver ci_hdrc_imx_driver = { .probe = ci_hdrc_imx_probe, - .remove_new = ci_hdrc_imx_remove, + .remove = ci_hdrc_imx_remove, .shutdown = ci_hdrc_imx_shutdown, .driver = { .name = "imx_usb", .of_match_table = ci_hdrc_imx_dt_ids, - .pm = &ci_hdrc_imx_pm_ops, + .pm = pm_ptr(&ci_hdrc_imx_pm_ops), }, }; diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c index 7b5b47ce8a02..3ab3daa78e34 100644 --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c @@ -292,7 +292,7 @@ MODULE_DEVICE_TABLE(of, msm_ci_dt_match); static struct platform_driver ci_hdrc_msm_driver = { .probe = ci_hdrc_msm_probe, - .remove_new = ci_hdrc_msm_remove, + .remove = ci_hdrc_msm_remove, .driver = { .name = "msm_hsusb", .of_match_table = msm_ci_dt_match, @@ -303,4 +303,5 @@ module_platform_driver(ci_hdrc_msm_driver); MODULE_ALIAS("platform:msm_hsusb"); MODULE_ALIAS("platform:ci13xxx_msm"); +MODULE_DESCRIPTION("ChipIdea Highspeed Dual Role Controller"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/chipidea/ci_hdrc_npcm.c b/drivers/usb/chipidea/ci_hdrc_npcm.c index e4a191e02ceb..e52a2b05cbe2 100644 --- a/drivers/usb/chipidea/ci_hdrc_npcm.c +++ b/drivers/usb/chipidea/ci_hdrc_npcm.c @@ -18,7 +18,7 @@ struct npcm_udc_data { struct ci_hdrc_platform_data pdata; }; -static int npcm_udc_notify_event(struct ci_hdrc *ci, unsigned event) +static int npcm_udc_notify_event(struct ci_hdrc *ci, unsigned int event) { struct device *dev = ci->dev->parent; @@ -28,7 +28,7 @@ static int npcm_udc_notify_event(struct ci_hdrc *ci, unsigned event) hw_write(ci, OP_USBMODE, 0xffffffff, 0x0); break; default: - dev_dbg(dev, "unknown ci_hdrc event (%d)\n",event); + dev_dbg(dev, "unknown ci_hdrc event (%d)\n", event); break; } @@ -80,15 +80,13 @@ clk_err: return ret; } -static int npcm_udc_remove(struct platform_device *pdev) +static void npcm_udc_remove(struct platform_device *pdev) { struct npcm_udc_data *ci = platform_get_drvdata(pdev); pm_runtime_disable(&pdev->dev); ci_hdrc_remove_device(ci->ci); clk_disable_unprepare(ci->core_clk); - - return 0; } static const struct of_device_id npcm_udc_dt_match[] = { diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c index 2cc305803217..372788f0f970 100644 --- a/drivers/usb/chipidea/ci_hdrc_tegra.c +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c @@ -372,7 +372,7 @@ static void tegra_usb_remove(struct platform_device *pdev) pm_runtime_force_suspend(&pdev->dev); } -static int __maybe_unused tegra_usb_runtime_resume(struct device *dev) +static int tegra_usb_runtime_resume(struct device *dev) { struct tegra_usb *usb = dev_get_drvdata(dev); int err; @@ -386,7 +386,7 @@ static int __maybe_unused tegra_usb_runtime_resume(struct device *dev) return 0; } -static int __maybe_unused tegra_usb_runtime_suspend(struct device *dev) +static int tegra_usb_runtime_suspend(struct device *dev) { struct tegra_usb *usb = dev_get_drvdata(dev); @@ -396,18 +396,17 @@ static int __maybe_unused tegra_usb_runtime_suspend(struct device *dev) } static const struct dev_pm_ops tegra_usb_pm = { - SET_RUNTIME_PM_OPS(tegra_usb_runtime_suspend, tegra_usb_runtime_resume, - NULL) + RUNTIME_PM_OPS(tegra_usb_runtime_suspend, tegra_usb_runtime_resume, NULL) }; static struct platform_driver tegra_usb_driver = { .driver = { .name = "tegra-usb", .of_match_table = tegra_usb_of_match, - .pm = &tegra_usb_pm, + .pm = pm_ptr(&tegra_usb_pm), }, .probe = tegra_usb_probe, - .remove_new = tegra_usb_remove, + .remove = tegra_usb_remove, }; module_platform_driver(tegra_usb_driver); diff --git a/drivers/usb/chipidea/ci_hdrc_usb2.c b/drivers/usb/chipidea/ci_hdrc_usb2.c index 97379f653b06..8ffa1e95d8e8 100644 --- a/drivers/usb/chipidea/ci_hdrc_usb2.c +++ b/drivers/usb/chipidea/ci_hdrc_usb2.c @@ -116,7 +116,7 @@ static void ci_hdrc_usb2_remove(struct platform_device *pdev) static struct platform_driver ci_hdrc_usb2_driver = { .probe = ci_hdrc_usb2_probe, - .remove_new = ci_hdrc_usb2_remove, + .remove = ci_hdrc_usb2_remove, .driver = { .name = "chipidea-usb2", .of_match_table = ci_hdrc_usb2_of_match, diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 835bf2428dc6..694b4a8e4e1d 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -765,7 +765,7 @@ static int ci_get_platdata(struct device *dev, ext_id = ERR_PTR(-ENODEV); ext_vbus = ERR_PTR(-ENODEV); - if (of_property_read_bool(dev->of_node, "extcon")) { + if (of_property_present(dev->of_node, "extcon")) { /* Each one of them is not mandatory */ ext_vbus = extcon_get_edev_by_phandle(dev, 0); if (IS_ERR(ext_vbus) && PTR_ERR(ext_vbus) != -ENODEV) @@ -1076,6 +1076,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) CI_HDRC_SUPPORTS_RUNTIME_PM); ci->has_portsc_pec_bug = !!(ci->platdata->flags & CI_HDRC_HAS_PORTSC_PEC_MISSED); + ci->has_short_pkt_limit = !!(ci->platdata->flags & + CI_HDRC_HAS_SHORT_PKT_LIMIT); platform_set_drvdata(pdev, ci); ret = hw_device_init(ci, base); @@ -1495,7 +1497,7 @@ static const struct dev_pm_ops ci_pm_ops = { static struct platform_driver ci_hdrc_driver = { .probe = ci_hdrc_probe, - .remove_new = ci_hdrc_remove, + .remove = ci_hdrc_remove, .driver = { .name = "ci_hdrc", .pm = &ci_pm_ops, diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 0cce19208370..ced6076a8248 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -13,6 +13,7 @@ #include <linux/usb/hcd.h> #include <linux/usb/chipidea.h> #include <linux/regulator/consumer.h> +#include <linux/string_choices.h> #include <linux/pinctrl/consumer.h> #include "../host/ehci.h" @@ -56,7 +57,7 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable) if (ret) { dev_err(dev, "Failed to %s vbus regulator, ret=%d\n", - enable ? "enable" : "disable", ret); + str_enable_disable(enable), ret); return ret; } priv->enabled = enable; @@ -256,8 +257,14 @@ static int ci_ehci_hub_control( struct device *dev = hcd->self.controller; struct ci_hdrc *ci = dev_get_drvdata(dev); - port_index = wIndex & 0xff; - port_index -= (port_index > 0); + /* + * Avoid out-of-bounds values while calculating the port index + * from wIndex. The compiler doesn't like pointers to invalid + * addresses, even if they are never used. + */ + port_index = (wIndex - 1) & 0xff; + if (port_index >= HCS_N_PORTS_MAX) + port_index = 0; status_reg = &ehci->regs->port_status[port_index]; spin_lock_irqsave(&ehci->lock, flags); diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c index c17516c29b63..a093544482d5 100644 --- a/drivers/usb/chipidea/otg_fsm.c +++ b/drivers/usb/chipidea/otg_fsm.c @@ -424,8 +424,7 @@ static enum hrtimer_restart ci_otg_hrtimer_func(struct hrtimer *t) /* Initialize timers */ static int ci_otg_init_timers(struct ci_hdrc *ci) { - hrtimer_init(&ci->otg_fsm_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - ci->otg_fsm_hrtimer.function = ci_otg_hrtimer_func; + hrtimer_setup(&ci->otg_fsm_hrtimer, ci_otg_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); return 0; } diff --git a/drivers/usb/chipidea/trace.h b/drivers/usb/chipidea/trace.h index ca0e65b48f0a..1875419cd17f 100644 --- a/drivers/usb/chipidea/trace.h +++ b/drivers/usb/chipidea/trace.h @@ -31,7 +31,7 @@ TRACE_EVENT(ci_log, __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( - __assign_str(name, dev_name(ci->dev)); + __assign_str(name); __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s: %s", __get_str(name), __get_str(msg)) @@ -51,7 +51,7 @@ DECLARE_EVENT_CLASS(ci_log_trb, __field(u32, type) ), TP_fast_assign( - __assign_str(name, hwep->name); + __assign_str(name); __entry->req = &hwreq->req; __entry->td = td; __entry->dma = td->dma; diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 2d7f616270c1..8a9b31fd5c89 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -10,6 +10,7 @@ #include <linux/delay.h> #include <linux/device.h> #include <linux/dmapool.h> +#include <linux/dma-direct.h> #include <linux/err.h> #include <linux/irqreturn.h> #include <linux/kernel.h> @@ -86,7 +87,7 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma) hw_write(ci, OP_ENDPTLISTADDR, ~0, dma); /* interrupt, error, port change, reset, sleep/suspend */ hw_write(ci, OP_USBINTR, ~0, - USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI); + USBi_UI|USBi_UEI|USBi_PCI|USBi_URI); } else { hw_write(ci, OP_USBINTR, ~0, 0); } @@ -540,6 +541,126 @@ static int prepare_td_for_sg(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) return ret; } +/* + * Verify if the scatterlist is valid by iterating each sg entry. + * Return invalid sg entry index which is less than num_sgs. + */ +static int sglist_get_invalid_entry(struct device *dma_dev, u8 dir, + struct usb_request *req) +{ + int i; + struct scatterlist *s = req->sg; + + if (req->num_sgs == 1) + return 1; + + dir = dir ? DMA_TO_DEVICE : DMA_FROM_DEVICE; + + for (i = 0; i < req->num_sgs; i++, s = sg_next(s)) { + /* Only small sg (generally last sg) may be bounced. If + * that happens. we can't ensure the addr is page-aligned + * after dma map. + */ + if (dma_kmalloc_needs_bounce(dma_dev, s->length, dir)) + break; + + /* Make sure each sg start address (except first sg) is + * page-aligned and end address (except last sg) is also + * page-aligned. + */ + if (i == 0) { + if (!IS_ALIGNED(s->offset + s->length, + CI_HDRC_PAGE_SIZE)) + break; + } else { + if (s->offset) + break; + if (!sg_is_last(s) && !IS_ALIGNED(s->length, + CI_HDRC_PAGE_SIZE)) + break; + } + } + + return i; +} + +static int sglist_do_bounce(struct ci_hw_req *hwreq, int index, + bool copy, unsigned int *bounced) +{ + void *buf; + int i, ret, nents, num_sgs; + unsigned int rest, rounded; + struct scatterlist *sg, *src, *dst; + + nents = index + 1; + ret = sg_alloc_table(&hwreq->sgt, nents, GFP_KERNEL); + if (ret) + return ret; + + sg = src = hwreq->req.sg; + num_sgs = hwreq->req.num_sgs; + rest = hwreq->req.length; + dst = hwreq->sgt.sgl; + + for (i = 0; i < index; i++) { + memcpy(dst, src, sizeof(*src)); + rest -= src->length; + src = sg_next(src); + dst = sg_next(dst); + } + + /* create one bounce buffer */ + rounded = round_up(rest, CI_HDRC_PAGE_SIZE); + buf = kmalloc(rounded, GFP_KERNEL); + if (!buf) { + sg_free_table(&hwreq->sgt); + return -ENOMEM; + } + + sg_set_buf(dst, buf, rounded); + + hwreq->req.sg = hwreq->sgt.sgl; + hwreq->req.num_sgs = nents; + hwreq->sgt.sgl = sg; + hwreq->sgt.nents = num_sgs; + + if (copy) + sg_copy_to_buffer(src, num_sgs - index, buf, rest); + + *bounced = rest; + + return 0; +} + +static void sglist_do_debounce(struct ci_hw_req *hwreq, bool copy) +{ + void *buf; + int i, nents, num_sgs; + struct scatterlist *sg, *src, *dst; + + sg = hwreq->req.sg; + num_sgs = hwreq->req.num_sgs; + src = sg_last(sg, num_sgs); + buf = sg_virt(src); + + if (copy) { + dst = hwreq->sgt.sgl; + for (i = 0; i < num_sgs - 1; i++) + dst = sg_next(dst); + + nents = hwreq->sgt.nents - num_sgs + 1; + sg_copy_from_buffer(dst, nents, buf, sg_dma_len(src)); + } + + hwreq->req.sg = hwreq->sgt.sgl; + hwreq->req.num_sgs = hwreq->sgt.nents; + hwreq->sgt.sgl = sg; + hwreq->sgt.nents = num_sgs; + + kfree(buf); + sg_free_table(&hwreq->sgt); +} + /** * _hardware_enqueue: configures a request at hardware level * @hwep: endpoint @@ -552,6 +673,8 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) struct ci_hdrc *ci = hwep->ci; int ret = 0; struct td_node *firstnode, *lastnode; + unsigned int bounced_size; + struct scatterlist *sg; /* don't queue twice */ if (hwreq->req.status == -EALREADY) @@ -559,11 +682,29 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) hwreq->req.status = -EALREADY; + if (hwreq->req.num_sgs && hwreq->req.length && + ci->has_short_pkt_limit) { + ret = sglist_get_invalid_entry(ci->dev->parent, hwep->dir, + &hwreq->req); + if (ret < hwreq->req.num_sgs) { + ret = sglist_do_bounce(hwreq, ret, hwep->dir == TX, + &bounced_size); + if (ret) + return ret; + } + } + ret = usb_gadget_map_request_by_dev(ci->dev->parent, &hwreq->req, hwep->dir); if (ret) return ret; + if (hwreq->sgt.sgl) { + /* We've mapped a bigger buffer, now recover the actual size */ + sg = sg_last(hwreq->req.sg, hwreq->req.num_sgs); + sg_dma_len(sg) = min(sg_dma_len(sg), bounced_size); + } + if (hwreq->req.num_mapped_sgs) ret = prepare_td_for_sg(hwep, hwreq); else @@ -612,10 +753,17 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) do { hw_write(ci, OP_USBCMD, USBCMD_ATDTW, USBCMD_ATDTW); tmp_stat = hw_read(ci, OP_ENDPTSTAT, BIT(n)); - } while (!hw_read(ci, OP_USBCMD, USBCMD_ATDTW)); + } while (!hw_read(ci, OP_USBCMD, USBCMD_ATDTW) && tmp_stat); hw_write(ci, OP_USBCMD, USBCMD_ATDTW, 0); if (tmp_stat) goto done; + + /* OP_ENDPTSTAT will be clear by HW when the endpoint met + * err. This dTD don't push to dQH if current dTD point is + * not the last one in previous request. + */ + if (hwep->qh.ptr->curr != cpu_to_le32(prevlastnode->dma)) + goto done; } /* QH configuration */ @@ -676,6 +824,7 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) unsigned remaining_length; unsigned actual = hwreq->req.length; struct ci_hdrc *ci = hwep->ci; + bool is_isoc = hwep->type == USB_ENDPOINT_XFER_ISOC; if (hwreq->req.status != -EALREADY) return -EINVAL; @@ -689,7 +838,7 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) int n = hw_ep_bit(hwep->num, hwep->dir); if (ci->rev == CI_REVISION_24 || - ci->rev == CI_REVISION_22) + ci->rev == CI_REVISION_22 || is_isoc) if (!hw_read(ci, OP_ENDPTSTAT, BIT(n))) reprime_dtd(ci, hwep, node); hwreq->req.status = -EALREADY; @@ -708,11 +857,15 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) hwreq->req.status = -EPROTO; break; } else if ((TD_STATUS_TR_ERR & hwreq->req.status)) { - hwreq->req.status = -EILSEQ; - break; + if (is_isoc) { + hwreq->req.status = 0; + } else { + hwreq->req.status = -EILSEQ; + break; + } } - if (remaining_length) { + if (remaining_length && !is_isoc) { if (hwep->dir == TX) { hwreq->req.status = -EPROTO; break; @@ -733,6 +886,10 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) usb_gadget_unmap_request_by_dev(hwep->ci->dev->parent, &hwreq->req, hwep->dir); + /* sglist bounced */ + if (hwreq->sgt.sgl) + sglist_do_debounce(hwreq, hwep->dir == RX); + hwreq->req.actual += actual; if (hwreq->req.status) @@ -877,6 +1034,7 @@ __releases(ci->lock) __acquires(ci->lock) { int retval; + u32 intr; spin_unlock(&ci->lock); if (ci->gadget.speed != USB_SPEED_UNKNOWN) @@ -890,6 +1048,11 @@ __acquires(ci->lock) if (retval) goto done; + /* clear SLI */ + hw_write(ci, OP_USBSTS, USBi_SLI, USBi_SLI); + intr = hw_read(ci, OP_USBINTR, ~0); + hw_write(ci, OP_USBINTR, ~0, intr | USBi_SLI); + ci->status = usb_ep_alloc_request(&ci->ep0in->ep, GFP_ATOMIC); if (ci->status == NULL) retval = -ENOMEM; @@ -954,6 +1117,12 @@ static int _ep_queue(struct usb_ep *ep, struct usb_request *req, return -EMSGSIZE; } + if (ci->has_short_pkt_limit && + hwreq->req.length > CI_MAX_REQ_SIZE) { + dev_err(hwep->ci->dev, "request length too big (max 16KB)\n"); + return -EMSGSIZE; + } + /* first nuke then test link, e.g. previous status has not sent */ if (!list_empty(&hwreq->queue)) { dev_err(hwep->ci->dev, "request already in queue\n"); @@ -1568,6 +1737,9 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req) usb_gadget_unmap_request(&hwep->ci->gadget, req, hwep->dir); + if (hwreq->sgt.sgl) + sglist_do_debounce(hwreq, false); + req->status = -ECONNRESET; if (hwreq->req.complete != NULL) { @@ -2057,7 +2229,7 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci) } } - if (USBi_UI & intr) + if ((USBi_UI | USBi_UEI) & intr) isr_tr_complete_handler(ci); if ((USBi_SLI & intr) && !(ci->suspended)) { diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h index 5193df1e18c7..c8a47389a46b 100644 --- a/drivers/usb/chipidea/udc.h +++ b/drivers/usb/chipidea/udc.h @@ -69,11 +69,13 @@ struct td_node { * @req: request structure for gadget drivers * @queue: link to QH list * @tds: link to TD list + * @sgt: hold original sglist when bounce sglist */ struct ci_hw_req { struct usb_request req; struct list_head queue; struct list_head tds; + struct sg_table sgt; }; #ifdef CONFIG_USB_CHIPIDEA_UDC diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 173c78afd502..6243d8005f5d 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -440,7 +440,7 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) else if (data->oc_pol_configured) reg &= ~MX6_BM_OVER_CUR_POLARITY; } - /* If the polarity is not set keep it as setup by the bootlader */ + /* If the polarity is not set keep it as setup by the bootloader */ if (data->pwr_pol == 1) reg |= MX6_BM_PWR_POLARITY; writel(reg, usbmisc->base + data->index * 4); @@ -645,7 +645,7 @@ static int usbmisc_imx7d_init(struct imx_usbmisc_data *data) else if (data->oc_pol_configured) reg &= ~MX6_BM_OVER_CUR_POLARITY; } - /* If the polarity is not set keep it as setup by the bootlader */ + /* If the polarity is not set keep it as setup by the bootloader */ if (data->pwr_pol == 1) reg |= MX6_BM_PWR_POLARITY; writel(reg, usbmisc->base); @@ -939,7 +939,7 @@ static int usbmisc_imx7ulp_init(struct imx_usbmisc_data *data) else if (data->oc_pol_configured) reg &= ~MX6_BM_OVER_CUR_POLARITY; } - /* If the polarity is not set keep it as setup by the bootlader */ + /* If the polarity is not set keep it as setup by the bootloader */ if (data->pwr_pol == 1) reg |= MX6_BM_PWR_POLARITY; @@ -1185,7 +1185,7 @@ int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup) if (usbmisc->ops->hsic_set_clk && data->hsic) ret = usbmisc->ops->hsic_set_clk(data, false); if (ret) { - dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); + dev_err(data->dev, "hsic_set_clk failed, ret=%d\n", ret); return ret; } @@ -1224,7 +1224,7 @@ int imx_usbmisc_resume(struct imx_usbmisc_data *data, bool wakeup) if (usbmisc->ops->hsic_set_clk && data->hsic) ret = usbmisc->ops->hsic_set_clk(data, true); if (ret) { - dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); + dev_err(data->dev, "hsic_set_clk failed, ret=%d\n", ret); goto hsic_set_clk_fail; } @@ -1285,6 +1285,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = { .compatible = "fsl,imx7ulp-usbmisc", .data = &imx7ulp_usbmisc_ops, }, + { + .compatible = "fsl,imx8ulp-usbmisc", + .data = &imx7ulp_usbmisc_ops, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids); diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 0e7439dba8fe..c2ecfa3c8349 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -35,7 +35,7 @@ #include <linux/usb.h> #include <linux/usb/cdc.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/idr.h> #include <linux/list.h> @@ -371,7 +371,7 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf) static void acm_ctrl_irq(struct urb *urb) { struct acm *acm = urb->context; - struct usb_cdc_notification *dr = urb->transfer_buffer; + struct usb_cdc_notification *dr; unsigned int current_size = urb->actual_length; unsigned int expected_size, copy_size, alloc_size; int retval; @@ -398,14 +398,25 @@ static void acm_ctrl_irq(struct urb *urb) usb_mark_last_busy(acm->dev); - if (acm->nb_index) + if (acm->nb_index == 0) { + /* + * The first chunk of a message must contain at least the + * notification header with the length field, otherwise we + * can't get an expected_size. + */ + if (current_size < sizeof(struct usb_cdc_notification)) { + dev_dbg(&acm->control->dev, "urb too short\n"); + goto exit; + } + dr = urb->transfer_buffer; + } else { dr = (struct usb_cdc_notification *)acm->notification_buffer; - + } /* size = notification-header + (optional) data */ expected_size = sizeof(struct usb_cdc_notification) + le16_to_cpu(dr->wLength); - if (current_size < expected_size) { + if (acm->nb_index != 0 || current_size < expected_size) { /* notification is transmitted fragmented, reassemble */ if (acm->nb_size < expected_size) { u8 *new_buffer; @@ -962,10 +973,12 @@ static int get_serial_info(struct tty_struct *tty, struct serial_struct *ss) struct acm *acm = tty->driver_data; ss->line = acm->minor; + mutex_lock(&acm->port.mutex); ss->close_delay = jiffies_to_msecs(acm->port.close_delay) / 10; ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? ASYNC_CLOSING_WAIT_NONE : jiffies_to_msecs(acm->port.closing_wait) / 10; + mutex_unlock(&acm->port.mutex); return 0; } @@ -1725,13 +1738,16 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, - { USB_DEVICE(0x045b, 0x023c), /* Renesas USB Download mode */ + { USB_DEVICE(0x045b, 0x023c), /* Renesas R-Car H3 USB Download mode */ + .driver_info = DISABLE_ECHO, /* Don't echo banner */ + }, + { USB_DEVICE(0x045b, 0x0247), /* Renesas R-Car D3 USB Download mode */ .driver_info = DISABLE_ECHO, /* Don't echo banner */ }, - { USB_DEVICE(0x045b, 0x0248), /* Renesas USB Download mode */ + { USB_DEVICE(0x045b, 0x0248), /* Renesas R-Car M3-N USB Download mode */ .driver_info = DISABLE_ECHO, /* Don't echo banner */ }, - { USB_DEVICE(0x045b, 0x024D), /* Renesas USB Download mode */ + { USB_DEVICE(0x045b, 0x024D), /* Renesas R-Car E3 USB Download mode */ .driver_info = DISABLE_ECHO, /* Don't echo banner */ }, { USB_DEVICE(0x0e8d, 0x0003), /* FIREFLY, MediaTek Inc; andrey.arapov@gmail.com */ @@ -1761,6 +1777,9 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */ .driver_info = SINGLE_RX_URB, }, + { USB_DEVICE(0x1901, 0x0006), /* GE Healthcare Patient Monitor UI Controller */ + .driver_info = DISABLE_ECHO, /* DISABLE ECHO in termios flag */ + }, { USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index c553decb5461..16e7fa4d488d 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -26,7 +26,7 @@ #include <linux/usb/cdc.h> #include <linux/wwan.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb/cdc-wdm.h> #define DRIVER_AUTHOR "Oliver Neukum" @@ -266,14 +266,14 @@ static void wdm_int_callback(struct urb *urb) dev_err(&desc->intf->dev, "Stall on int endpoint\n"); goto sw; /* halt is cleared in work */ default: - dev_err(&desc->intf->dev, + dev_err_ratelimited(&desc->intf->dev, "nonzero urb status received: %d\n", status); break; } } if (urb->actual_length < sizeof(struct usb_cdc_notification)) { - dev_err(&desc->intf->dev, "wdm_int_callback - %d bytes\n", + dev_err_ratelimited(&desc->intf->dev, "wdm_int_callback - %d bytes\n", urb->actual_length); goto exit; } @@ -726,7 +726,7 @@ static int wdm_open(struct inode *inode, struct file *file) rv = -EBUSY; goto out; } - + smp_rmb(); /* ordered against wdm_wwan_port_stop() */ rv = usb_autopm_get_interface(desc->intf); if (rv < 0) { dev_err(&desc->intf->dev, "Error autopm - %d\n", rv); @@ -829,6 +829,7 @@ static struct usb_class_driver wdm_class = { static int wdm_wwan_port_start(struct wwan_port *port) { struct wdm_device *desc = wwan_port_get_drvdata(port); + int rv; /* The interface is both exposed via the WWAN framework and as a * legacy usbmisc chardev. If chardev is already open, just fail @@ -848,7 +849,15 @@ static int wdm_wwan_port_start(struct wwan_port *port) wwan_port_txon(port); /* Start getting events */ - return usb_submit_urb(desc->validity, GFP_KERNEL); + rv = usb_submit_urb(desc->validity, GFP_KERNEL); + if (rv < 0) { + wwan_port_txoff(port); + desc->manage_power(desc->intf, 0); + /* this must be last lest we race with chardev open */ + clear_bit(WDM_WWAN_IN_USE, &desc->flags); + } + + return rv; } static void wdm_wwan_port_stop(struct wwan_port *port) @@ -859,8 +868,10 @@ static void wdm_wwan_port_stop(struct wwan_port *port) poison_urbs(desc); desc->manage_power(desc->intf, 0); clear_bit(WDM_READ, &desc->flags); - clear_bit(WDM_WWAN_IN_USE, &desc->flags); unpoison_urbs(desc); + smp_wmb(); /* ordered against wdm_open() */ + /* this must be last lest we open a poisoned device */ + clear_bit(WDM_WWAN_IN_USE, &desc->flags); } static void wdm_wwan_port_tx_complete(struct urb *urb) @@ -868,7 +879,7 @@ static void wdm_wwan_port_tx_complete(struct urb *urb) struct sk_buff *skb = urb->context; struct wdm_device *desc = skb_shinfo(skb)->destructor_arg; - usb_autopm_put_interface(desc->intf); + usb_autopm_put_interface_async(desc->intf); wwan_port_txon(desc->wwanp); kfree_skb(skb); } @@ -898,7 +909,7 @@ static int wdm_wwan_port_tx(struct wwan_port *port, struct sk_buff *skb) req->bRequestType = (USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE); req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND; req->wValue = 0; - req->wIndex = desc->inum; + req->wIndex = desc->inum; /* already converted */ req->wLength = cpu_to_le16(skb->len); skb_shinfo(skb)->destructor_arg = desc; diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 5a2e43331064..e2527faa6592 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -87,7 +87,7 @@ /* Get two-int array: [0]=vendor ID, [1]=product ID: */ #define LPIOC_GET_VID_PID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_VID_PID, len) /* Perform class specific soft reset */ -#define LPIOC_SOFT_RESET _IOC(_IOC_NONE, 'P', IOCNR_SOFT_RESET, 0); +#define LPIOC_SOFT_RESET _IOC(_IOC_NONE, 'P', IOCNR_SOFT_RESET, 0) /* * A DEVICE_ID string may include the printer's serial number. @@ -1337,11 +1337,12 @@ static int usblp_set_protocol(struct usblp *usblp, int protocol) if (protocol < USBLP_FIRST_PROTOCOL || protocol > USBLP_LAST_PROTOCOL) return -EINVAL; + alts = usblp->protocol[protocol].alt_setting; + if (alts < 0) + return -EINVAL; + /* Don't unnecessarily set the interface if there's a single alt. */ if (usblp->intf->num_altsetting > 1) { - alts = usblp->protocol[protocol].alt_setting; - if (alts < 0) - return -EINVAL; r = usb_set_interface(usblp->dev, usblp->ifnum, alts); if (r < 0) { printk(KERN_ERR "usblp: can't set desired altsetting %d on interface %d\n", diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 311007b1d904..740d2d2b19fb 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -482,6 +482,7 @@ static int usbtmc_get_stb(struct usbtmc_file_data *file_data, __u8 *stb) u8 *buffer; u8 tag; int rv; + long wait_rv; dev_dbg(dev, "Enter ioctl_read_stb iin_ep_present: %d\n", data->iin_ep_present); @@ -511,16 +512,17 @@ static int usbtmc_get_stb(struct usbtmc_file_data *file_data, __u8 *stb) } if (data->iin_ep_present) { - rv = wait_event_interruptible_timeout( + wait_rv = wait_event_interruptible_timeout( data->waitq, atomic_read(&data->iin_data_valid) != 0, file_data->timeout); - if (rv < 0) { - dev_dbg(dev, "wait interrupted %d\n", rv); + if (wait_rv < 0) { + dev_dbg(dev, "wait interrupted %ld\n", wait_rv); + rv = wait_rv; goto exit; } - if (rv == 0) { + if (wait_rv == 0) { dev_dbg(dev, "wait timed out\n"); rv = -ETIMEDOUT; goto exit; @@ -539,6 +541,8 @@ static int usbtmc_get_stb(struct usbtmc_file_data *file_data, __u8 *stb) dev_dbg(dev, "stb:0x%02x received %d\n", (unsigned int)*stb, rv); + rv = 0; + exit: /* bump interrupt bTag */ data->iin_bTag += 1; @@ -602,9 +606,9 @@ static int usbtmc488_ioctl_wait_srq(struct usbtmc_file_data *file_data, { struct usbtmc_device_data *data = file_data->data; struct device *dev = &data->intf->dev; - int rv; u32 timeout; unsigned long expire; + long wait_rv; if (!data->iin_ep_present) { dev_dbg(dev, "no interrupt endpoint present\n"); @@ -618,25 +622,24 @@ static int usbtmc488_ioctl_wait_srq(struct usbtmc_file_data *file_data, mutex_unlock(&data->io_mutex); - rv = wait_event_interruptible_timeout( - data->waitq, - atomic_read(&file_data->srq_asserted) != 0 || - atomic_read(&file_data->closing), - expire); + wait_rv = wait_event_interruptible_timeout( + data->waitq, + atomic_read(&file_data->srq_asserted) != 0 || + atomic_read(&file_data->closing), + expire); mutex_lock(&data->io_mutex); /* Note! disconnect or close could be called in the meantime */ if (atomic_read(&file_data->closing) || data->zombie) - rv = -ENODEV; + return -ENODEV; - if (rv < 0) { - /* dev can be invalid now! */ - pr_debug("%s - wait interrupted %d\n", __func__, rv); - return rv; + if (wait_rv < 0) { + dev_dbg(dev, "%s - wait interrupted %ld\n", __func__, wait_rv); + return wait_rv; } - if (rv == 0) { + if (wait_rv == 0) { dev_dbg(dev, "%s - wait timed out\n", __func__); return -ETIMEDOUT; } @@ -754,7 +757,7 @@ static struct urb *usbtmc_create_urb(void) if (!urb) return NULL; - dmabuf = kmalloc(bufsize, GFP_KERNEL); + dmabuf = kzalloc(bufsize, GFP_KERNEL); if (!dmabuf) { usb_free_urb(urb); return NULL; @@ -830,6 +833,7 @@ static ssize_t usbtmc_generic_read(struct usbtmc_file_data *file_data, unsigned long expire; int bufcount = 1; int again = 0; + long wait_rv; /* mutex already locked */ @@ -942,19 +946,24 @@ static ssize_t usbtmc_generic_read(struct usbtmc_file_data *file_data, if (!(flags & USBTMC_FLAG_ASYNC)) { dev_dbg(dev, "%s: before wait time %lu\n", __func__, expire); - retval = wait_event_interruptible_timeout( + wait_rv = wait_event_interruptible_timeout( file_data->wait_bulk_in, usbtmc_do_transfer(file_data), expire); - dev_dbg(dev, "%s: wait returned %d\n", - __func__, retval); + dev_dbg(dev, "%s: wait returned %ld\n", + __func__, wait_rv); + + if (wait_rv < 0) { + retval = wait_rv; + goto error; + } - if (retval <= 0) { - if (retval == 0) - retval = -ETIMEDOUT; + if (wait_rv == 0) { + retval = -ETIMEDOUT; goto error; } + } urb = usb_get_from_anchor(&file_data->in_anchor); @@ -1380,7 +1389,10 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, if (!buffer) return -ENOMEM; - mutex_lock(&data->io_mutex); + retval = mutex_lock_interruptible(&data->io_mutex); + if (retval < 0) + goto exit_nolock; + if (data->zombie) { retval = -ENODEV; goto exit; @@ -1503,6 +1515,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, exit: mutex_unlock(&data->io_mutex); +exit_nolock: kfree(buffer); return retval; } @@ -2592,4 +2605,5 @@ static struct usb_driver usbtmc_driver = { module_usb_driver(usbtmc_driver); +MODULE_DESCRIPTION("USB Test & Measurement class driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c index b84efae26e15..fc0845f681be 100644 --- a/drivers/usb/common/common.c +++ b/drivers/usb/common/common.c @@ -41,6 +41,12 @@ const char *usb_ep_type_string(int ep_type) } EXPORT_SYMBOL_GPL(usb_ep_type_string); +/** + * usb_otg_state_string() - returns human readable name of OTG state. + * @state: the OTG state to return the human readable name of. If it's not + * any of the states defined in usb_otg_state enum, 'UNDEFINED' will be + * returned. + */ const char *usb_otg_state_string(enum usb_otg_state state) { static const char *const names[] = { @@ -107,19 +113,18 @@ EXPORT_SYMBOL_GPL(usb_speed_string); */ enum usb_device_speed usb_get_maximum_speed(struct device *dev) { - const char *maximum_speed; + const char *p = "maximum-speed"; int ret; - ret = device_property_read_string(dev, "maximum-speed", &maximum_speed); - if (ret < 0) - return USB_SPEED_UNKNOWN; - - ret = match_string(ssp_rate, ARRAY_SIZE(ssp_rate), maximum_speed); + ret = device_property_match_property_string(dev, p, ssp_rate, ARRAY_SIZE(ssp_rate)); if (ret > 0) return USB_SPEED_SUPER_PLUS; - ret = match_string(speed_names, ARRAY_SIZE(speed_names), maximum_speed); - return (ret < 0) ? USB_SPEED_UNKNOWN : ret; + ret = device_property_match_property_string(dev, p, speed_names, ARRAY_SIZE(speed_names)); + if (ret > 0) + return ret; + + return USB_SPEED_UNKNOWN; } EXPORT_SYMBOL_GPL(usb_get_maximum_speed); @@ -180,6 +185,14 @@ static const char *const usb_dr_modes[] = { [USB_DR_MODE_OTG] = "otg", }; +/** + * usb_get_dr_mode_from_string() - Get dual role mode for given string + * @str: String to find the corresponding dual role mode for + * + * This function performs a lookup for the given string and returns the + * corresponding enum usb_dr_mode. If no match for the string could be found, + * 'USB_DR_MODE_UNKNOWN' is returned. + */ static enum usb_dr_mode usb_get_dr_mode_from_string(const char *str) { int ret; @@ -276,14 +289,13 @@ EXPORT_SYMBOL_GPL(usb_decode_interval); */ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0) { - struct device_node *controller = NULL; + struct device_node *controller; struct of_phandle_args args; const char *dr_mode; int index; int err; - do { - controller = of_find_node_with_property(controller, "phys"); + for_each_node_with_property(controller, "phys") { if (!of_device_is_available(controller)) continue; index = 0; @@ -306,7 +318,7 @@ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0) goto finish; index++; } while (args.np); - } while (controller); + } finish: err = of_property_read_string(controller, "dr_mode", &dr_mode); @@ -417,6 +429,9 @@ EXPORT_SYMBOL_GPL(usb_of_get_companion_dev); struct dentry *usb_debug_root; EXPORT_SYMBOL_GPL(usb_debug_root); +DEFINE_MUTEX(usb_dynids_lock); +EXPORT_SYMBOL_GPL(usb_dynids_lock); + static int __init usb_common_init(void) { usb_debug_root = debugfs_create_dir("usb", NULL); @@ -433,4 +448,5 @@ static void __exit usb_common_exit(void) subsys_initcall(usb_common_init); module_exit(usb_common_exit); +MODULE_DESCRIPTION("Common code for host and device side USB"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c index 0886b19d2e1c..4a2ee447b213 100644 --- a/drivers/usb/common/ulpi.c +++ b/drivers/usb/common/ulpi.c @@ -34,7 +34,7 @@ EXPORT_SYMBOL_GPL(ulpi_write); /* -------------------------------------------------------------------------- */ -static int ulpi_match(struct device *dev, struct device_driver *driver) +static int ulpi_match(struct device *dev, const struct device_driver *driver) { struct ulpi_driver *drv = to_ulpi_driver(driver); struct ulpi *ulpi = to_ulpi_dev(dev); diff --git a/drivers/usb/common/usb-conn-gpio.c b/drivers/usb/common/usb-conn-gpio.c index 501e8bc9738e..1e36be2a28fd 100644 --- a/drivers/usb/common/usb-conn-gpio.c +++ b/drivers/usb/common/usb-conn-gpio.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/power_supply.h> #include <linux/regulator/consumer.h> +#include <linux/string_choices.h> #include <linux/usb/role.h> #define USB_GPIO_DEB_MS 20 /* ms */ @@ -111,7 +112,7 @@ static void usb_conn_detect_cable(struct work_struct *work) if (info->vbus) dev_dbg(info->dev, "vbus regulator is %s\n", - regulator_is_enabled(info->vbus) ? "enabled" : "disabled"); + str_enabled_disabled(regulator_is_enabled(info->vbus))); power_supply_changed(info->charger); } @@ -157,7 +158,7 @@ static int usb_conn_psy_register(struct usb_conn_info *info) struct device *dev = info->dev; struct power_supply_desc *desc = &info->desc; struct power_supply_config cfg = { - .of_node = dev->of_node, + .fwnode = dev_fwnode(dev), }; desc->name = "usb-charger"; @@ -340,7 +341,7 @@ MODULE_DEVICE_TABLE(of, usb_conn_dt_match); static struct platform_driver usb_conn_driver = { .probe = usb_conn_probe, - .remove_new = usb_conn_remove, + .remove = usb_conn_remove, .driver = { .name = "usb-conn-gpio", .pm = &usb_conn_pm_ops, diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c index 0697fde51d00..e11803225775 100644 --- a/drivers/usb/common/usb-otg-fsm.c +++ b/drivers/usb/common/usb-otg-fsm.c @@ -449,4 +449,5 @@ int otg_statemachine(struct otg_fsm *fsm) return fsm->state_changed; } EXPORT_SYMBOL_GPL(otg_statemachine); +MODULE_DESCRIPTION("OTG Finite State Machine"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index 7d338e9c0657..ac006abd13b3 100644 --- a/drivers/usb/core/Makefile +++ b/drivers/usb/core/Makefile @@ -12,8 +12,8 @@ usbcore-$(CONFIG_OF) += of.o usbcore-$(CONFIG_USB_PCI) += hcd-pci.o usbcore-$(CONFIG_ACPI) += usb-acpi.o -ifdef CONFIG_USB_ONBOARD_HUB -usbcore-y += ../misc/onboard_usb_hub_pdevs.o +ifdef CONFIG_USB_ONBOARD_DEV +usbcore-y += ../misc/onboard_usb_dev_pdevs.o endif obj-$(CONFIG_USB) += usbcore.o diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 7f8d33f92ddb..13bd4ec4ea5f 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -9,6 +9,7 @@ #include <linux/usb/quirks.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/device.h> #include <asm/byteorder.h> #include "usb.h" @@ -18,12 +19,6 @@ #define USB_MAXCONFIG 8 /* Arbitrary limit */ - -static inline const char *plural(int n) -{ - return (n == 1 ? "" : "s"); -} - static int find_next_descriptor(unsigned char *buffer, int size, int dt1, int dt2, int *num_skipped) { @@ -69,6 +64,37 @@ static void usb_parse_ssp_isoc_endpoint_companion(struct device *ddev, memcpy(&ep->ssp_isoc_ep_comp, desc, USB_DT_SSP_ISOC_EP_COMP_SIZE); } +static void usb_parse_eusb2_isoc_endpoint_companion(struct device *ddev, + int cfgno, int inum, int asnum, struct usb_host_endpoint *ep, + unsigned char *buffer, int size) +{ + struct usb_eusb2_isoc_ep_comp_descriptor *desc; + struct usb_descriptor_header *h; + + /* + * eUSB2 isochronous endpoint companion descriptor for this endpoint + * shall be declared before the next endpoint or interface descriptor + */ + while (size >= USB_DT_EUSB2_ISOC_EP_COMP_SIZE) { + h = (struct usb_descriptor_header *)buffer; + + if (h->bDescriptorType == USB_DT_EUSB2_ISOC_ENDPOINT_COMP) { + desc = (struct usb_eusb2_isoc_ep_comp_descriptor *)buffer; + ep->eusb2_isoc_ep_comp = *desc; + return; + } + if (h->bDescriptorType == USB_DT_ENDPOINT || + h->bDescriptorType == USB_DT_INTERFACE) + break; + + buffer += h->bLength; + size -= h->bLength; + } + + dev_notice(ddev, "No eUSB2 isoc ep %d companion for config %d interface %d altsetting %d\n", + ep->desc.bEndpointAddress, cfgno, inum, asnum); +} + static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno, int inum, int asnum, struct usb_host_endpoint *ep, unsigned char *buffer, int size) @@ -263,8 +289,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int n, i, j, retval; unsigned int maxp; const unsigned short *maxpacket_maxes; + u16 bcdUSB; d = (struct usb_endpoint_descriptor *) buffer; + bcdUSB = le16_to_cpu(udev->descriptor.bcdUSB); buffer += d->bLength; size -= d->bLength; @@ -279,11 +307,11 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, goto skip_to_next_endpoint_or_interface_descriptor; } - i = d->bEndpointAddress & ~USB_ENDPOINT_DIR_MASK; - if (i >= 16 || i == 0) { + i = d->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; + if (i == 0) { dev_notice(ddev, "config %d interface %d altsetting %d has an " - "invalid endpoint with address 0x%X, skipping\n", - cfgno, inum, asnum, d->bEndpointAddress); + "invalid descriptor for endpoint zero, skipping\n", + cfgno, inum, asnum); goto skip_to_next_endpoint_or_interface_descriptor; } @@ -291,6 +319,20 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, if (ifp->desc.bNumEndpoints >= num_ep) goto skip_to_next_endpoint_or_interface_descriptor; + /* Save a copy of the descriptor and use it instead of the original */ + endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints]; + memcpy(&endpoint->desc, d, n); + d = &endpoint->desc; + + /* Clear the reserved bits in bEndpointAddress */ + i = d->bEndpointAddress & + (USB_ENDPOINT_DIR_MASK | USB_ENDPOINT_NUMBER_MASK); + if (i != d->bEndpointAddress) { + dev_notice(ddev, "config %d interface %d altsetting %d has an endpoint descriptor with address 0x%X, changing to 0x%X\n", + cfgno, inum, asnum, d->bEndpointAddress, i); + endpoint->desc.bEndpointAddress = i; + } + /* Check for duplicate endpoint addresses */ if (config_endpoint_is_duplicate(config, inum, asnum, d)) { dev_notice(ddev, "config %d interface %d altsetting %d has a duplicate endpoint with address 0x%X, skipping\n", @@ -308,10 +350,8 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, } } - endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints]; + /* Accept this endpoint */ ++ifp->desc.bNumEndpoints; - - memcpy(&endpoint->desc, d, n); INIT_LIST_HEAD(&endpoint->urb_list); /* @@ -402,15 +442,17 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, /* * Validate the wMaxPacketSize field. - * Some devices have isochronous endpoints in altsetting 0; - * the USB-2 spec requires such endpoints to have wMaxPacketSize = 0 - * (see the end of section 5.6.3), so don't warn about them. + * eUSB2 devices (see USB 2.0 Double Isochronous IN ECN 9.6.6 Endpoint) + * and devices with isochronous endpoints in altsetting 0 (see USB 2.0 + * end of section 5.6.3) have wMaxPacketSize = 0. + * So don't warn about those. */ maxp = le16_to_cpu(endpoint->desc.wMaxPacketSize); - if (maxp == 0 && !(usb_endpoint_xfer_isoc(d) && asnum == 0)) { + + if (maxp == 0 && bcdUSB != 0x0220 && + !(usb_endpoint_xfer_isoc(d) && asnum == 0)) dev_notice(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid wMaxPacketSize 0\n", cfgno, inum, asnum, d->bEndpointAddress); - } /* Find the highest legal maxpacket size for this endpoint */ i = 0; /* additional transactions per microframe */ @@ -458,6 +500,12 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, maxp); } + /* Parse a possible eUSB2 periodic endpoint companion descriptor */ + if (bcdUSB == 0x0220 && d->wMaxPacketSize == 0 && + (usb_endpoint_xfer_isoc(d) || usb_endpoint_xfer_int(d))) + usb_parse_eusb2_isoc_endpoint_companion(ddev, cfgno, inum, asnum, + endpoint, buffer, size); + /* Parse a possible SuperSpeed endpoint companion descriptor */ if (udev->speed >= USB_SPEED_SUPER) usb_parse_ss_endpoint_companion(ddev, cfgno, @@ -472,7 +520,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, retval = buffer - buffer0 + i; if (n > 0) dev_dbg(ddev, "skipped %d descriptor%s after %s\n", - n, plural(n), "endpoint"); + n, str_plural(n), "endpoint"); return retval; skip_to_next_endpoint_or_interface_descriptor: @@ -551,7 +599,7 @@ static int usb_parse_interface(struct device *ddev, int cfgno, alt->extralen = i; if (n > 0) dev_dbg(ddev, "skipped %d descriptor%s after %s\n", - n, plural(n), "interface"); + n, str_plural(n), "interface"); buffer += i; size -= i; @@ -593,7 +641,7 @@ static int usb_parse_interface(struct device *ddev, int cfgno, dev_notice(ddev, "config %d interface %d altsetting %d has %d " "endpoint descriptor%s, different from the interface " "descriptor's value: %d\n", - cfgno, inum, asnum, n, plural(n), num_ep_orig); + cfgno, inum, asnum, n, str_plural(n), num_ep_orig); return buffer - buffer0; skip_to_next_interface_descriptor: @@ -652,7 +700,7 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx, if (size2 < sizeof(struct usb_descriptor_header)) { dev_notice(ddev, "config %d descriptor has %d excess " "byte%s, ignoring\n", - cfgno, size2, plural(size2)); + cfgno, size2, str_plural(size2)); break; } @@ -742,7 +790,7 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx, if (n != nintf) dev_notice(ddev, "config %d has %d interface%s, different from " "the descriptor's value: %d\n", - cfgno, n, plural(n), nintf_orig); + cfgno, n, str_plural(n), nintf_orig); else if (n == 0) dev_notice(ddev, "config %d has no interfaces?\n", cfgno); config->desc.bNumInterfaces = nintf = n; @@ -786,7 +834,7 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx, config->extralen = i; if (n > 0) dev_dbg(ddev, "skipped %d descriptor%s after %s\n", - n, plural(n), "configuration"); + n, str_plural(n), "configuration"); buffer += i; size -= i; @@ -912,7 +960,7 @@ int usb_get_configuration(struct usb_device *dev) result = -EINVAL; goto err; } - length = max((int) le16_to_cpu(desc->wTotalLength), + length = max_t(int, le16_to_cpu(desc->wTotalLength), USB_DT_CONFIG_SIZE); /* Now that we know the length, get the whole thing */ diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 3beb6a862e80..f6ce6e26e0d4 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -238,6 +238,9 @@ static int usbdev_mmap(struct file *file, struct vm_area_struct *vma) dma_addr_t dma_handle = DMA_MAPPING_ERROR; int ret; + if (!(file->f_mode & FMODE_WRITE)) + return -EPERM; + ret = usbfs_increase_memory_usage(size + sizeof(struct usb_memory)); if (ret) goto error; @@ -1295,7 +1298,7 @@ static int do_proc_bulk(struct usb_dev_state *ps, return ret; len1 = bulk->len; - if (len1 < 0 || len1 >= (INT_MAX - sizeof(struct urb))) + if (len1 >= (INT_MAX - sizeof(struct urb))) return -EINVAL; if (bulk->ep & USB_DIR_IN) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index e02ba15f6e34..460d4dde5994 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -95,9 +95,9 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, } } - spin_lock(&dynids->lock); + mutex_lock(&usb_dynids_lock); list_add_tail(&dynid->node, &dynids->list); - spin_unlock(&dynids->lock); + mutex_unlock(&usb_dynids_lock); retval = driver_attach(driver); @@ -116,6 +116,7 @@ ssize_t usb_show_dynids(struct usb_dynids *dynids, char *buf) struct usb_dynid *dynid; size_t count = 0; + guard(mutex)(&usb_dynids_lock); list_for_each_entry(dynid, &dynids->list, node) if (dynid->id.bInterfaceClass != 0) count += scnprintf(&buf[count], PAGE_SIZE - count, "%04x %04x %02x\n", @@ -160,7 +161,7 @@ static ssize_t remove_id_store(struct device_driver *driver, const char *buf, if (fields < 2) return -EINVAL; - spin_lock(&usb_driver->dynids.lock); + guard(mutex)(&usb_dynids_lock); list_for_each_entry_safe(dynid, n, &usb_driver->dynids.list, node) { struct usb_device_id *id = &dynid->id; @@ -171,7 +172,6 @@ static ssize_t remove_id_store(struct device_driver *driver, const char *buf, break; } } - spin_unlock(&usb_driver->dynids.lock); return count; } @@ -220,27 +220,24 @@ static void usb_free_dynids(struct usb_driver *usb_drv) { struct usb_dynid *dynid, *n; - spin_lock(&usb_drv->dynids.lock); + guard(mutex)(&usb_dynids_lock); list_for_each_entry_safe(dynid, n, &usb_drv->dynids.list, node) { list_del(&dynid->node); kfree(dynid); } - spin_unlock(&usb_drv->dynids.lock); } static const struct usb_device_id *usb_match_dynamic_id(struct usb_interface *intf, - struct usb_driver *drv) + const struct usb_driver *drv) { struct usb_dynid *dynid; - spin_lock(&drv->dynids.lock); + guard(mutex)(&usb_dynids_lock); list_for_each_entry(dynid, &drv->dynids.list, node) { if (usb_match_one_id(intf, &dynid->id)) { - spin_unlock(&drv->dynids.lock); return &dynid->id; } } - spin_unlock(&drv->dynids.lock); return NULL; } @@ -517,6 +514,19 @@ static int usb_unbind_interface(struct device *dev) return 0; } +static void usb_shutdown_interface(struct device *dev) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_driver *driver; + + if (!dev->driver) + return; + + driver = to_usb_driver(dev->driver); + if (driver->shutdown) + driver->shutdown(intf); +} + /** * usb_driver_claim_interface - bind a driver to an interface * @driver: the driver to be bound @@ -840,7 +850,7 @@ const struct usb_device_id *usb_device_match_id(struct usb_device *udev, EXPORT_SYMBOL_GPL(usb_device_match_id); bool usb_driver_applicable(struct usb_device *udev, - struct usb_device_driver *udrv) + const struct usb_device_driver *udrv) { if (udrv->id_table && udrv->match) return usb_device_match_id(udev, udrv->id_table) != NULL && @@ -855,12 +865,12 @@ bool usb_driver_applicable(struct usb_device *udev, return false; } -static int usb_device_match(struct device *dev, struct device_driver *drv) +static int usb_device_match(struct device *dev, const struct device_driver *drv) { /* devices and interfaces are handled separately */ if (is_usb_device(dev)) { struct usb_device *udev; - struct usb_device_driver *udrv; + const struct usb_device_driver *udrv; /* interface drivers never match devices */ if (!is_usb_device_driver(drv)) @@ -880,7 +890,7 @@ static int usb_device_match(struct device *dev, struct device_driver *drv) } else if (is_usb_interface(dev)) { struct usb_interface *intf; - struct usb_driver *usb_drv; + const struct usb_driver *usb_drv; const struct usb_device_id *id; /* device drivers never match interfaces */ @@ -1059,10 +1069,10 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner, new_driver->driver.bus = &usb_bus_type; new_driver->driver.probe = usb_probe_interface; new_driver->driver.remove = usb_unbind_interface; + new_driver->driver.shutdown = usb_shutdown_interface; new_driver->driver.owner = owner; new_driver->driver.mod_name = mod_name; new_driver->driver.dev_groups = new_driver->dev_groups; - spin_lock_init(&new_driver->dynids.lock); INIT_LIST_HEAD(&new_driver->dynids.list); retval = driver_register(&new_driver->driver); @@ -1076,15 +1086,14 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner, pr_info("%s: registered new interface driver %s\n", usbcore_name, new_driver->name); -out: - return retval; + return 0; out_newid: driver_unregister(&new_driver->driver); - +out: pr_err("%s: error %d registering interface driver %s\n", usbcore_name, retval, new_driver->name); - goto out; + return retval; } EXPORT_SYMBOL_GPL(usb_register_driver); diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c index 4b38b87a1343..e48399401608 100644 --- a/drivers/usb/core/endpoint.c +++ b/drivers/usb/core/endpoint.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/spinlock.h> #include <linux/slab.h> +#include <linux/sysfs.h> #include <linux/usb.h> #include "usb.h" @@ -39,7 +40,7 @@ static ssize_t field##_show(struct device *dev, \ char *buf) \ { \ struct ep_device *ep = to_ep_device(dev); \ - return sprintf(buf, format_string, ep->desc->field); \ + return sysfs_emit(buf, format_string, ep->desc->field); \ } \ static DEVICE_ATTR_RO(field) @@ -52,7 +53,7 @@ static ssize_t wMaxPacketSize_show(struct device *dev, struct device_attribute *attr, char *buf) { struct ep_device *ep = to_ep_device(dev); - return sprintf(buf, "%04x\n", usb_endpoint_maxp(ep->desc)); + return sysfs_emit(buf, "%04x\n", usb_endpoint_maxp(ep->desc)); } static DEVICE_ATTR_RO(wMaxPacketSize); @@ -76,7 +77,7 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr, type = "Interrupt"; break; } - return sprintf(buf, "%s\n", type); + return sysfs_emit(buf, "%s\n", type); } static DEVICE_ATTR_RO(type); @@ -95,7 +96,7 @@ static ssize_t interval_show(struct device *dev, struct device_attribute *attr, interval /= 1000; } - return sprintf(buf, "%d%cs\n", interval, unit); + return sysfs_emit(buf, "%d%cs\n", interval, unit); } static DEVICE_ATTR_RO(interval); @@ -111,7 +112,7 @@ static ssize_t direction_show(struct device *dev, struct device_attribute *attr, direction = "in"; else direction = "out"; - return sprintf(buf, "%s\n", direction); + return sysfs_emit(buf, "%s\n", direction); } static DEVICE_ATTR_RO(direction); diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index b134bff5c3fe..9c6ae5e1198b 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -21,14 +21,10 @@ #include <linux/usb.h> #include <linux/usb/hcd.h> +#include <linux/string_choices.h> #include <uapi/linux/usb/audio.h> #include "usb.h" -static inline const char *plural(int n) -{ - return (n == 1 ? "" : "s"); -} - static int is_rndis(struct usb_interface_descriptor *desc) { return desc->bInterfaceClass == USB_CLASS_COMM @@ -194,18 +190,18 @@ int usb_choose_configuration(struct usb_device *udev) if (insufficient_power > 0) dev_info(&udev->dev, "rejected %d configuration%s " "due to insufficient available bus power\n", - insufficient_power, plural(insufficient_power)); + insufficient_power, str_plural(insufficient_power)); if (best) { i = best->desc.bConfigurationValue; dev_dbg(&udev->dev, "configuration #%d chosen from %d choice%s\n", - i, num_configs, plural(num_configs)); + i, num_configs, str_plural(num_configs)); } else { i = -1; dev_warn(&udev->dev, "no configuration chosen from %d choice%s\n", - num_configs, plural(num_configs)); + num_configs, str_plural(num_configs)); } return i; } diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index ee3156f49533..56b534f59907 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -189,7 +189,8 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct hc_driver *driver) * make sure irq setup is not touched for xhci in generic hcd code */ if ((driver->flags & HCD_MASK) < HCD_USB3) { - retval = pci_alloc_irq_vectors(dev, 1, 1, PCI_IRQ_LEGACY | PCI_IRQ_MSI); + retval = pci_alloc_irq_vectors(dev, 1, 1, + PCI_IRQ_INTX | PCI_IRQ_MSI); if (retval < 0) { dev_err(&dev->dev, "Found HC with no IRQ. Check BIOS/PCI %s setup!\n", @@ -421,7 +422,12 @@ static int suspend_common(struct device *dev, pm_message_t msg) bool do_wakeup; int retval; - do_wakeup = PMSG_IS_AUTO(msg) ? true : device_may_wakeup(dev); + if (PMSG_IS_AUTO(msg)) + do_wakeup = true; + else if (PMSG_NO_WAKEUP(msg)) + do_wakeup = false; + else + do_wakeup = device_may_wakeup(dev); /* Root hub suspend should have stopped all downstream traffic, * and all bus master traffic. And done so for both the interface @@ -520,6 +526,11 @@ static int hcd_pci_suspend(struct device *dev) return suspend_common(dev, PMSG_SUSPEND); } +static int hcd_pci_freeze(struct device *dev) +{ + return suspend_common(dev, PMSG_FREEZE); +} + static int hcd_pci_suspend_noirq(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); @@ -589,6 +600,7 @@ static int hcd_pci_restore(struct device *dev) #else #define hcd_pci_suspend NULL +#define hcd_pci_freeze NULL #define hcd_pci_suspend_noirq NULL #define hcd_pci_poweroff_late NULL #define hcd_pci_resume_noirq NULL @@ -623,7 +635,7 @@ const struct dev_pm_ops usb_hcd_pci_pm_ops = { .suspend_noirq = hcd_pci_suspend_noirq, .resume_noirq = hcd_pci_resume_noirq, .resume = hcd_pci_resume, - .freeze = hcd_pci_suspend, + .freeze = hcd_pci_freeze, .freeze_noirq = check_root_hub_suspended, .thaw_noirq = NULL, .thaw = hcd_pci_resume, diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index c0e005670d67..a63c793bac21 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -24,7 +24,7 @@ #include <linux/mutex.h> #include <asm/irq.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/platform_device.h> #include <linux/workqueue.h> #include <linux/pm_runtime.h> @@ -415,7 +415,7 @@ ascii2desc(char const *s, u8 *buf, unsigned len) static unsigned rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len) { - char buf[100]; + char buf[160]; char const *s; static char const langids[4] = {4, USB_DT_STRING, 0x09, 0x04}; @@ -842,7 +842,7 @@ static int usb_rh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) } else { /* Status URB */ if (!hcd->uses_new_polling) - del_timer (&hcd->rh_timer); + timer_delete(&hcd->rh_timer); if (urb == hcd->status_urb) { hcd->status_urb = NULL; usb_hcd_unlink_urb_from_ep(hcd, urb); @@ -866,7 +866,7 @@ static int usb_rh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) */ static void usb_bus_init (struct usb_bus *bus) { - memset (&bus->devmap, 0, sizeof(struct usb_devmap)); + memset(&bus->devmap, 0, sizeof(bus->devmap)); bus->devnum_next = 1; @@ -962,7 +962,7 @@ static int register_root_hub(struct usb_hcd *hcd) usb_dev->devnum = devnum; usb_dev->bus->devnum_next = devnum + 1; - set_bit (devnum, usb_dev->bus->devmap.devicemap); + set_bit(devnum, usb_dev->bus->devmap); usb_set_device_state(usb_dev, USB_STATE_ADDRESS); mutex_lock(&usb_bus_idr_lock); @@ -1609,7 +1609,7 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) if (retval == 0) retval = -EINPROGRESS; else if (retval != -EIDRM && retval != -EBUSY) - dev_dbg(&udev->dev, "hcd_unlink_urb %pK fail %d\n", + dev_dbg(&udev->dev, "hcd_unlink_urb %p fail %d\n", urb, retval); usb_put_dev(udev); } @@ -1623,6 +1623,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb) struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); struct usb_anchor *anchor = urb->anchor; int status = urb->unlinked; + unsigned long flags; urb->hcpriv = NULL; if (unlikely((urb->transfer_flags & URB_SHORT_NOT_OK) && @@ -1640,13 +1641,14 @@ static void __usb_hcd_giveback_urb(struct urb *urb) /* pass ownership to the completion handler */ urb->status = status; /* - * This function can be called in task context inside another remote - * coverage collection section, but kcov doesn't support that kind of - * recursion yet. Only collect coverage in softirq context for now. + * Only collect coverage in the softirq context and disable interrupts + * to avoid scenarios with nested remote coverage collection sections + * that KCOV does not support. + * See the comment next to kcov_remote_start_usb_softirq() for details. */ - kcov_remote_start_usb_softirq((u64)urb->dev->bus->busnum); + flags = kcov_remote_start_usb_softirq((u64)urb->dev->bus->busnum); urb->complete(urb); - kcov_remote_stop_softirq(); + kcov_remote_stop_softirq(flags); usb_anchor_resume_wakeups(anchor); atomic_dec(&urb->use_count); @@ -1784,7 +1786,7 @@ rescan: /* kick hcd */ unlink1(hcd, urb, -ESHUTDOWN); dev_dbg (hcd->self.controller, - "shutdown urb %pK ep%d%s-%s\n", + "shutdown urb %p ep%d%s-%s\n", urb, usb_endpoint_num(&ep->desc), is_in ? "in" : "out", usb_ep_type_string(usb_endpoint_type(&ep->desc))); @@ -2766,14 +2768,14 @@ static void usb_stop_hcd(struct usb_hcd *hcd) { hcd->rh_pollable = 0; clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); hcd->driver->stop(hcd); hcd->state = HC_STATE_HALT; /* In case the HCD restarted the timer, stop it again. */ clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); } /** @@ -2792,8 +2794,14 @@ int usb_add_hcd(struct usb_hcd *hcd, int retval; struct usb_device *rhdev; struct usb_hcd *shared_hcd; + int skip_phy_initialization; + + if (usb_hcd_is_primary_hcd(hcd)) + skip_phy_initialization = hcd->skip_phy_initialization; + else + skip_phy_initialization = hcd->primary_hcd->skip_phy_initialization; - if (!hcd->skip_phy_initialization) { + if (!skip_phy_initialization) { if (usb_hcd_is_primary_hcd(hcd)) { hcd->phy_roothub = usb_phy_roothub_alloc(hcd->self.sysdev); if (IS_ERR(hcd->phy_roothub)) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 9446660e231b..0e1dd6ef60a7 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -18,12 +18,13 @@ #include <linux/sched/mm.h> #include <linux/list.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/kcov.h> #include <linux/ioctl.h> #include <linux/usb.h> #include <linux/usbdevice_fs.h> #include <linux/usb/hcd.h> -#include <linux/usb/onboard_hub.h> +#include <linux/usb/onboard_dev.h> #include <linux/usb/otg.h> #include <linux/usb/quirks.h> #include <linux/workqueue.h> @@ -1384,7 +1385,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) } /* Stop hub_wq and related activity */ - del_timer_sync(&hub->irq_urb_retry); + timer_delete_sync(&hub->irq_urb_retry); usb_kill_urb(hub->urb); if (hub->has_indicators) cancel_delayed_work_sync(&hub->leds); @@ -1496,7 +1497,7 @@ static int hub_configure(struct usb_hub *hub, maxchild = hub->descriptor->bNbrPorts; dev_info(hub_dev, "%d port%s detected\n", maxchild, - (maxchild == 1) ? "" : "s"); + str_plural(maxchild)); hub->ports = kcalloc(maxchild, sizeof(struct usb_port *), GFP_KERNEL); if (!hub->ports) { @@ -1814,7 +1815,7 @@ static void hub_disconnect(struct usb_interface *intf) if (hub->quirk_disable_autosuspend) usb_autopm_put_interface(intf); - onboard_hub_destroy_pdevs(&hub->onboard_hub_devs); + onboard_dev_destroy_pdevs(&hub->onboard_devs); hub_put(hub); } @@ -1848,6 +1849,17 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) hdev = interface_to_usbdev(intf); /* + * The USB 2.0 spec prohibits hubs from having more than one + * configuration or interface, and we rely on this prohibition. + * Refuse to accept a device that violates it. + */ + if (hdev->descriptor.bNumConfigurations > 1 || + hdev->actconfig->desc.bNumInterfaces > 1) { + dev_err(&intf->dev, "Invalid hub with more than one config or interface\n"); + return -EINVAL; + } + + /* * Set default autosuspend delay as 0 to speedup bus suspend, * based on the below considerations: * @@ -1933,7 +1945,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) INIT_DELAYED_WORK(&hub->leds, led_work); INIT_DELAYED_WORK(&hub->init_work, NULL); INIT_WORK(&hub->events, hub_event); - INIT_LIST_HEAD(&hub->onboard_hub_devs); + INIT_LIST_HEAD(&hub->onboard_devs); spin_lock_init(&hub->irq_urb_lock); timer_setup(&hub->irq_urb_retry, hub_retry_irq_urb, 0); usb_get_intf(intf); @@ -1963,7 +1975,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) } if (hub_configure(hub, &desc->endpoint[0].desc) >= 0) { - onboard_hub_create_pdevs(hdev, &hub->onboard_hub_devs); + onboard_dev_create_pdevs(hdev, &hub->onboard_devs); return 0; } @@ -2207,13 +2219,12 @@ static void choose_devnum(struct usb_device *udev) mutex_lock(&bus->devnum_next_mutex); /* Try to allocate the next devnum beginning at bus->devnum_next. */ - devnum = find_next_zero_bit(bus->devmap.devicemap, 128, - bus->devnum_next); + devnum = find_next_zero_bit(bus->devmap, 128, bus->devnum_next); if (devnum >= 128) - devnum = find_next_zero_bit(bus->devmap.devicemap, 128, 1); + devnum = find_next_zero_bit(bus->devmap, 128, 1); bus->devnum_next = (devnum >= 127 ? 1 : devnum + 1); if (devnum < 128) { - set_bit(devnum, bus->devmap.devicemap); + set_bit(devnum, bus->devmap); udev->devnum = devnum; } mutex_unlock(&bus->devnum_next_mutex); @@ -2222,7 +2233,7 @@ static void choose_devnum(struct usb_device *udev) static void release_devnum(struct usb_device *udev) { if (udev->devnum > 0) { - clear_bit(udev->devnum, udev->bus->devmap.devicemap); + clear_bit(udev->devnum, udev->bus->devmap); udev->devnum = -1; } } @@ -2664,13 +2675,13 @@ int usb_new_device(struct usb_device *udev) err = sysfs_create_link(&udev->dev.kobj, &port_dev->dev.kobj, "port"); if (err) - goto fail; + goto out_del_dev; err = sysfs_create_link(&port_dev->dev.kobj, &udev->dev.kobj, "device"); if (err) { sysfs_remove_link(&udev->dev.kobj, "port"); - goto fail; + goto out_del_dev; } if (!test_and_set_bit(port1, hub->child_usage_bits)) @@ -2684,6 +2695,8 @@ int usb_new_device(struct usb_device *udev) pm_runtime_put_sync_autosuspend(&udev->dev); return err; +out_del_dev: + device_del(&udev->dev); fail: usb_set_device_state(udev, USB_STATE_NOTATTACHED); pm_runtime_disable(&udev->dev); @@ -4138,14 +4151,14 @@ static int usb_set_device_initiated_lpm(struct usb_device *udev, break; default: dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", - __func__, enable ? "enable" : "disable"); + __func__, str_enable_disable(enable)); return -EINVAL; } if (udev->state != USB_STATE_CONFIGURED) { dev_dbg(&udev->dev, "%s: Can't %s %s state " "for unconfigured device.\n", - __func__, enable ? "enable" : "disable", + __func__, str_enable_disable(enable), usb3_lpm_names[state]); return 0; } @@ -4171,8 +4184,7 @@ static int usb_set_device_initiated_lpm(struct usb_device *udev, } if (ret < 0) { dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", - enable ? "Enable" : "Disable", - usb3_lpm_names[state]); + str_enable_disable(enable), usb3_lpm_names[state]); return -EBUSY; } return 0; @@ -4696,9 +4708,6 @@ void usb_ep0_reinit(struct usb_device *udev) } EXPORT_SYMBOL_GPL(usb_ep0_reinit); -#define usb_sndaddr0pipe() (PIPE_CONTROL << 30) -#define usb_rcvaddr0pipe() ((PIPE_CONTROL << 30) | USB_DIR_IN) - static int hub_set_address(struct usb_device *udev, int devnum) { int retval; @@ -4722,7 +4731,7 @@ static int hub_set_address(struct usb_device *udev, int devnum) if (hcd->driver->address_device) retval = hcd->driver->address_device(hcd, udev, timeout_ms); else - retval = usb_control_msg(udev, usb_sndaddr0pipe(), + retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_SET_ADDRESS, 0, devnum, 0, NULL, 0, timeout_ms); if (retval == 0) { @@ -4803,7 +4812,7 @@ static int get_bMaxPacketSize0(struct usb_device *udev, for (i = 0; i < GET_MAXPACKET0_TRIES; ++i) { /* Start with invalid values in case the transfer fails */ buf->bDescriptorType = buf->bMaxPacketSize0 = 0; - rc = usb_control_msg(udev, usb_rcvaddr0pipe(), + rc = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, USB_DT_DEVICE << 8, 0, buf, size, @@ -5110,9 +5119,10 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, } if (usb_endpoint_maxp(&udev->ep0.desc) == i) { ; /* Initial ep0 maxpacket guess is right */ - } else if ((udev->speed == USB_SPEED_FULL || + } else if (((udev->speed == USB_SPEED_FULL || udev->speed == USB_SPEED_HIGH) && - (i == 8 || i == 16 || i == 32 || i == 64)) { + (i == 8 || i == 16 || i == 32 || i == 64)) || + (udev->speed >= USB_SPEED_SUPER && i > 0)) { /* Initial guess is wrong; use the descriptor's value */ if (udev->speed == USB_SPEED_FULL) dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); @@ -6054,6 +6064,36 @@ void usb_hub_cleanup(void) } /* usb_hub_cleanup() */ /** + * hub_hc_release_resources - clear resources used by host controller + * @udev: pointer to device being released + * + * Context: task context, might sleep + * + * Function releases the host controller resources in correct order before + * making any operation on resuming usb device. The host controller resources + * allocated for devices in tree should be released starting from the last + * usb device in tree toward the root hub. This function is used only during + * resuming device when usb device require reinitialization – that is, when + * flag udev->reset_resume is set. + * + * This call is synchronous, and may not be used in an interrupt context. + */ +static void hub_hc_release_resources(struct usb_device *udev) +{ + struct usb_hub *hub = usb_hub_to_struct_hub(udev); + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + int i; + + /* Release up resources for all children before this device */ + for (i = 0; i < udev->maxchild; i++) + if (hub->ports[i]->child) + hub_hc_release_resources(hub->ports[i]->child); + + if (hcd->driver->reset_device) + hcd->driver->reset_device(hcd, udev); +} + +/** * usb_reset_and_verify_device - perform a USB port reset to reinitialize a device * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) * @@ -6117,6 +6157,9 @@ static int usb_reset_and_verify_device(struct usb_device *udev) bos = udev->bos; udev->bos = NULL; + if (udev->reset_resume) + hub_hc_release_resources(udev); + mutex_lock(hcd->address0_mutex); for (i = 0; i < PORT_INIT_TRIES; ++i) { diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 183b69dc2955..e6ae73f8a95d 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -74,7 +74,7 @@ struct usb_hub { spinlock_t irq_urb_lock; struct timer_list irq_urb_retry; struct usb_port **ports; - struct list_head onboard_hub_devs; + struct list_head onboard_devs; }; /** diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c index 85c999f71ad7..5e3c515991f3 100644 --- a/drivers/usb/core/ledtrig-usbport.c +++ b/drivers/usb/core/ledtrig-usbport.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/slab.h> +#include <linux/sysfs.h> #include <linux/usb.h> #include <linux/usb/of.h> @@ -87,7 +88,7 @@ static ssize_t usbport_trig_port_show(struct device *dev, struct usbport_trig_port, attr); - return sprintf(buf, "%d\n", port->observed) + 1; + return sysfs_emit(buf, "%d\n", port->observed) + 1; } static ssize_t usbport_trig_port_store(struct device *dev, diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c index f1a499ee482c..763e4122ed5b 100644 --- a/drivers/usb/core/of.c +++ b/drivers/usb/core/of.c @@ -84,9 +84,12 @@ static bool usb_of_has_devices_or_graph(const struct usb_device *hub) if (of_graph_is_present(np)) return true; - for_each_child_of_node(np, child) - if (of_property_present(child, "reg")) + for_each_child_of_node(np, child) { + if (of_property_present(child, "reg")) { + of_node_put(child); return true; + } + } return false; } diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index 0e1262a077ae..f54198171b6a 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -9,6 +9,8 @@ #include <linux/kstrtox.h> #include <linux/slab.h> +#include <linux/string_choices.h> +#include <linux/sysfs.h> #include <linux/pm_qos.h> #include <linux/component.h> #include <linux/usb/of.h> @@ -24,7 +26,7 @@ static ssize_t early_stop_show(struct device *dev, { struct usb_port *port_dev = to_usb_port(dev); - return sysfs_emit(buf, "%s\n", port_dev->early_stop ? "yes" : "no"); + return sysfs_emit(buf, "%s\n", str_yes_no(port_dev->early_stop)); } static ssize_t early_stop_store(struct device *dev, struct device_attribute *attr, @@ -51,13 +53,15 @@ static ssize_t disable_show(struct device *dev, struct usb_port *port_dev = to_usb_port(dev); struct usb_device *hdev = to_usb_device(dev->parent->parent); struct usb_hub *hub = usb_hub_to_struct_hub(hdev); - struct usb_interface *intf = to_usb_interface(hub->intfdev); + struct usb_interface *intf = to_usb_interface(dev->parent); int port1 = port_dev->portnum; u16 portstatus, unused; bool disabled; int rc; struct kernfs_node *kn; + if (!hub) + return -ENODEV; hub_get(hub); rc = usb_autopm_get_interface(intf); if (rc < 0) @@ -101,12 +105,14 @@ static ssize_t disable_store(struct device *dev, struct device_attribute *attr, struct usb_port *port_dev = to_usb_port(dev); struct usb_device *hdev = to_usb_device(dev->parent->parent); struct usb_hub *hub = usb_hub_to_struct_hub(hdev); - struct usb_interface *intf = to_usb_interface(hub->intfdev); + struct usb_interface *intf = to_usb_interface(dev->parent); int port1 = port_dev->portnum; bool disabled; int rc; struct kernfs_node *kn; + if (!hub) + return -ENODEV; rc = kstrtobool(buf, &disabled); if (rc) return rc; @@ -162,7 +168,7 @@ static ssize_t location_show(struct device *dev, { struct usb_port *port_dev = to_usb_port(dev); - return sprintf(buf, "0x%08x\n", port_dev->location); + return sysfs_emit(buf, "0x%08x\n", port_dev->location); } static DEVICE_ATTR_RO(location); @@ -187,7 +193,7 @@ static ssize_t connect_type_show(struct device *dev, break; } - return sprintf(buf, "%s\n", result); + return sysfs_emit(buf, "%s\n", result); } static DEVICE_ATTR_RO(connect_type); @@ -206,7 +212,7 @@ static ssize_t over_current_count_show(struct device *dev, { struct usb_port *port_dev = to_usb_port(dev); - return sprintf(buf, "%u\n", port_dev->over_current_count); + return sysfs_emit(buf, "%u\n", port_dev->over_current_count); } static DEVICE_ATTR_RO(over_current_count); @@ -215,7 +221,7 @@ static ssize_t quirks_show(struct device *dev, { struct usb_port *port_dev = to_usb_port(dev); - return sprintf(buf, "%08x\n", port_dev->quirks); + return sysfs_emit(buf, "%08x\n", port_dev->quirks); } static ssize_t quirks_store(struct device *dev, struct device_attribute *attr, @@ -250,7 +256,7 @@ static ssize_t usb3_lpm_permit_show(struct device *dev, p = "0"; } - return sprintf(buf, "%s\n", p); + return sysfs_emit(buf, "%s\n", p); } static ssize_t usb3_lpm_permit_store(struct device *dev, @@ -448,10 +454,11 @@ static int usb_port_runtime_suspend(struct device *dev) static void usb_port_shutdown(struct device *dev) { struct usb_port *port_dev = to_usb_port(dev); + struct usb_device *udev = port_dev->child; - if (port_dev->child) { - usb_disable_usb2_hardware_lpm(port_dev->child); - usb_unlocked_disable_lpm(port_dev->child); + if (udev && !udev->port_is_suspended) { + usb_disable_usb2_hardware_lpm(udev); + usb_unlocked_disable_lpm(udev); } } diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index b4783574b8e6..36d3df7d040c 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -341,6 +341,10 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0638, 0x0a13), .driver_info = USB_QUIRK_STRING_FETCH_255 }, + /* Prolific Single-LUN Mass Storage Card Reader */ + { USB_DEVICE(0x067b, 0x2731), .driver_info = USB_QUIRK_DELAY_INIT | + USB_QUIRK_NO_LPM }, + /* Saitek Cyborg Gold Joystick */ { USB_DEVICE(0x06a3, 0x0006), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, @@ -365,6 +369,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0781, 0x5583), .driver_info = USB_QUIRK_NO_LPM }, { USB_DEVICE(0x0781, 0x5591), .driver_info = USB_QUIRK_NO_LPM }, + /* SanDisk Corp. SanDisk 3.2Gen1 */ + { USB_DEVICE(0x0781, 0x55a3), .driver_info = USB_QUIRK_DELAY_INIT }, + /* Realforce 87U Keyboard */ { USB_DEVICE(0x0853, 0x011b), .driver_info = USB_QUIRK_NO_LPM }, @@ -379,6 +386,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0904, 0x6103), .driver_info = USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL }, + /* Silicon Motion Flash Drive */ + { USB_DEVICE(0x090c, 0x1000), .driver_info = USB_QUIRK_DELAY_INIT }, + /* Sound Devices USBPre2 */ { USB_DEVICE(0x0926, 0x0202), .driver_info = USB_QUIRK_ENDPOINT_IGNORE }, @@ -394,6 +404,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* Kingston DataTraveler 3.0 */ { USB_DEVICE(0x0951, 0x1666), .driver_info = USB_QUIRK_NO_LPM }, + /* TOSHIBA TransMemory-Mx */ + { USB_DEVICE(0x0930, 0x1408), .driver_info = USB_QUIRK_NO_LPM }, + /* NVIDIA Jetson devices in Force Recovery mode */ { USB_DEVICE(0x0955, 0x7018), .driver_info = USB_QUIRK_RESET_RESUME }, { USB_DEVICE(0x0955, 0x7019), .driver_info = USB_QUIRK_RESET_RESUME }, @@ -432,6 +445,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0c45, 0x7056), .driver_info = USB_QUIRK_IGNORE_REMOTE_WAKEUP }, + /* Sony Xperia XZ1 Compact (lilac) smartphone in fastboot mode */ + { USB_DEVICE(0x0fce, 0x0dde), .driver_info = USB_QUIRK_NO_LPM }, + /* Action Semiconductor flash disk */ { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255 }, @@ -506,6 +522,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x1b1c, 0x1b38), .driver_info = USB_QUIRK_DELAY_INIT | USB_QUIRK_DELAY_CTRL_MSG }, + /* START BP-850k Printer */ + { USB_DEVICE(0x1bc3, 0x0003), .driver_info = USB_QUIRK_NO_SET_INTF }, + /* MIDI keyboard WORLDE MINI */ { USB_DEVICE(0x1c75, 0x0204), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, @@ -519,10 +538,16 @@ static const struct usb_device_id usb_quirk_list[] = { /* Blackmagic Design UltraStudio SDI */ { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM }, + /* Teclast disk */ + { USB_DEVICE(0x1f75, 0x0917), .driver_info = USB_QUIRK_NO_LPM }, + /* Hauppauge HVR-950q */ { USB_DEVICE(0x2040, 0x7200), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, + /* VLI disk */ + { USB_DEVICE(0x2109, 0x0711), .driver_info = USB_QUIRK_NO_LPM }, + /* Raydium Touchscreen */ { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM }, diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index d83231d6736a..23f3cb1989f4 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -670,6 +670,7 @@ static int add_power_attributes(struct device *dev) static void remove_power_attributes(struct device *dev) { + sysfs_unmerge_group(&dev->kobj, &usb3_hardware_lpm_attr_group); sysfs_unmerge_group(&dev->kobj, &usb2_hardware_lpm_attr_group); sysfs_unmerge_group(&dev->kobj, &power_attr_group); } @@ -853,7 +854,7 @@ static const struct attribute_group dev_string_attr_grp = { static ssize_t descriptors_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, + const struct bin_attribute *attr, char *buf, loff_t off, size_t count) { struct device *dev = kobj_to_dev(kobj); @@ -889,11 +890,11 @@ descriptors_read(struct file *filp, struct kobject *kobj, } return count - nleft; } -static BIN_ATTR_RO(descriptors, 18 + 65535); /* dev descr + max-size raw descriptor */ +static const BIN_ATTR_RO(descriptors, 18 + 65535); /* dev descr + max-size raw descriptor */ static ssize_t bos_descriptors_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, + const struct bin_attribute *attr, char *buf, loff_t off, size_t count) { struct device *dev = kobj_to_dev(kobj); @@ -912,19 +913,19 @@ bos_descriptors_read(struct file *filp, struct kobject *kobj, } return n; } -static BIN_ATTR_RO(bos_descriptors, 65535); /* max-size BOS */ +static const BIN_ATTR_RO(bos_descriptors, 65535); /* max-size BOS */ /* When modifying this list, be sure to modify dev_bin_attrs_are_visible() * accordingly. */ -static struct bin_attribute *dev_bin_attrs[] = { +static const struct bin_attribute *const dev_bin_attrs[] = { &bin_attr_descriptors, &bin_attr_bos_descriptors, NULL }; static umode_t dev_bin_attrs_are_visible(struct kobject *kobj, - struct bin_attribute *a, int n) + const struct bin_attribute *a, int n) { struct device *dev = kobj_to_dev(kobj); struct usb_device *udev = to_usb_device(dev); @@ -943,7 +944,7 @@ static umode_t dev_bin_attrs_are_visible(struct kobject *kobj, } static const struct attribute_group dev_bin_attr_grp = { - .bin_attrs = dev_bin_attrs, + .bin_attrs_new = dev_bin_attrs, .is_bin_visible = dev_bin_attrs_are_visible, }; diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 7576920e2d5a..5e52a35486af 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -376,7 +376,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) if (!urb || !urb->complete) return -EINVAL; if (urb->hcpriv) { - WARN_ONCE(1, "URB %pK submitted while active\n", urb); + WARN_ONCE(1, "URB %p submitted while active\n", urb); return -EBUSY; } diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c index 7f8a912d4fe2..935c0efea0b6 100644 --- a/drivers/usb/core/usb-acpi.c +++ b/drivers/usb/core/usb-acpi.c @@ -142,6 +142,53 @@ int usb_acpi_set_power_state(struct usb_device *hdev, int index, bool enable) } EXPORT_SYMBOL_GPL(usb_acpi_set_power_state); +/** + * usb_acpi_add_usb4_devlink - add device link to USB4 Host Interface for tunneled USB3 devices + * + * @udev: Tunneled USB3 device connected to a roothub. + * + * Adds a device link between a tunneled USB3 device and the USB4 Host Interface + * device to ensure correct runtime PM suspend and resume order. This function + * should only be called for tunneled USB3 devices. + * The USB4 Host Interface this tunneled device depends on is found from the roothub + * port ACPI device specific data _DSD entry. + * + * Return: negative error code on failure, 0 otherwise + */ +static int usb_acpi_add_usb4_devlink(struct usb_device *udev) +{ + const struct device_link *link; + struct usb_port *port_dev; + struct usb_hub *hub; + + if (!udev->parent || udev->parent->parent) + return 0; + + hub = usb_hub_to_struct_hub(udev->parent); + port_dev = hub->ports[udev->portnum - 1]; + + struct fwnode_handle *nhi_fwnode __free(fwnode_handle) = + fwnode_find_reference(dev_fwnode(&port_dev->dev), "usb4-host-interface", 0); + + if (IS_ERR(nhi_fwnode) || !nhi_fwnode->dev) + return 0; + + link = device_link_add(&port_dev->child->dev, nhi_fwnode->dev, + DL_FLAG_STATELESS | + DL_FLAG_RPM_ACTIVE | + DL_FLAG_PM_RUNTIME); + if (!link) { + dev_err(&port_dev->dev, "Failed to created device link from %s to %s\n", + dev_name(&port_dev->child->dev), dev_name(nhi_fwnode->dev)); + return -EINVAL; + } + + dev_dbg(&port_dev->dev, "Created device link from %s to %s\n", + dev_name(&port_dev->child->dev), dev_name(nhi_fwnode->dev)); + + return 0; +} + /* * Private to usb-acpi, all the core needs to know is that * port_dev->location is non-zero when it has been set by the firmware. @@ -166,8 +213,7 @@ usb_acpi_get_connect_type(struct usb_port *port_dev, acpi_handle *handle) * no connectable, the port would be not used. */ - status = acpi_get_physical_device_location(handle, &pld); - if (ACPI_SUCCESS(status) && pld) + if (acpi_get_physical_device_location(handle, &pld) && pld) port_dev->location = USB_ACPI_LOCATION_VALID | pld->group_token << 8 | pld->group_position; @@ -262,6 +308,12 @@ usb_acpi_find_companion_for_device(struct usb_device *udev) if (!hub) return NULL; + + /* Tunneled USB3 devices depend on USB4 Host Interface, set device link to it */ + if (udev->speed >= USB_SPEED_SUPER && + udev->tunnel_mode != USB_LINK_NATIVE) + usb_acpi_add_usb4_devlink(udev); + /* * This is an embedded USB device connected to a port and such * devices share port's ACPI companion. diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index a0c432b14b20..0b4685aad2d5 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -1150,4 +1150,5 @@ static void __exit usb_exit(void) subsys_initcall(usb_init); module_exit(usb_exit); +MODULE_DESCRIPTION("USB core host-side support"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index b8324ea05b20..a9b37aeb515b 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -75,7 +75,7 @@ extern int usb_match_device(struct usb_device *dev, extern const struct usb_device_id *usb_device_match_id(struct usb_device *udev, const struct usb_device_id *id); extern bool usb_driver_applicable(struct usb_device *udev, - struct usb_device_driver *udrv); + const struct usb_device_driver *udrv); extern void usb_forced_unbind_intf(struct usb_interface *intf); extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev); diff --git a/drivers/usb/dwc2/Kconfig b/drivers/usb/dwc2/Kconfig index c131719367ec..d7af55a8eced 100644 --- a/drivers/usb/dwc2/Kconfig +++ b/drivers/usb/dwc2/Kconfig @@ -21,7 +21,7 @@ config USB_DWC2 if USB_DWC2 choice - bool "DWC2 Mode Selection" + prompt "DWC2 Mode Selection" default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET) default USB_DWC2_HOST if (USB && !USB_GADGET) default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET) diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 5635e4d7ec88..c3d24312db0f 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -43,6 +43,7 @@ int dwc2_backup_global_registers(struct dwc2_hsotg *hsotg) /* Backup global regs */ gr = &hsotg->gr_backup; + gr->gintsts = dwc2_readl(hsotg, GINTSTS); gr->gotgctl = dwc2_readl(hsotg, GOTGCTL); gr->gintmsk = dwc2_readl(hsotg, GINTMSK); gr->gahbcfg = dwc2_readl(hsotg, GAHBCFG); @@ -249,6 +250,11 @@ void dwc2_hib_restore_common(struct dwc2_hsotg *hsotg, int rem_wakeup, dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); + /* Reset ULPI latch */ + gpwrdn = dwc2_readl(hsotg, GPWRDN); + gpwrdn &= ~GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + dwc2_writel(hsotg, gpwrdn, GPWRDN); + /* Disable PMU interrupt */ gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PMUINTSEL; @@ -975,6 +981,41 @@ void dwc2_init_fs_ls_pclk_sel(struct dwc2_hsotg *hsotg) dwc2_writel(hsotg, hcfg, HCFG); } +static void dwc2_set_clock_switch_timer(struct dwc2_hsotg *hsotg) +{ + u32 grstctl, gsnpsid, val = 0; + + gsnpsid = dwc2_readl(hsotg, GSNPSID); + + /* + * Applicable only to HSOTG core v5.00a or higher. + * Not applicable to HS/FS IOT devices. + */ + if ((gsnpsid & ~DWC2_CORE_REV_MASK) != DWC2_OTG_ID || + gsnpsid < DWC2_CORE_REV_5_00a) + return; + + if ((hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI && + hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_NOT_SUPPORTED) || + (hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_ULPI && + hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_NOT_SUPPORTED) || + (hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_NOT_SUPPORTED && + hsotg->hw_params.fs_phy_type != GHWCFG2_FS_PHY_TYPE_NOT_SUPPORTED)) { + val = GRSTCTL_CLOCK_SWITH_TIMER_VALUE_DIS; + } + + if (hsotg->params.speed == DWC2_SPEED_PARAM_LOW && + hsotg->hw_params.hs_phy_type != GHWCFG2_HS_PHY_TYPE_NOT_SUPPORTED && + hsotg->hw_params.fs_phy_type != GHWCFG2_FS_PHY_TYPE_NOT_SUPPORTED) { + val = GRSTCTL_CLOCK_SWITH_TIMER_VALUE_147; + } + + grstctl = dwc2_readl(hsotg, GRSTCTL); + grstctl &= ~GRSTCTL_CLOCK_SWITH_TIMER_MASK; + grstctl |= GRSTCTL_CLOCK_SWITH_TIMER(val); + dwc2_writel(hsotg, grstctl, GRSTCTL); +} + static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) { u32 usbcfg, ggpio, i2cctl; @@ -992,6 +1033,8 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) usbcfg |= GUSBCFG_PHYSEL; dwc2_writel(hsotg, usbcfg, GUSBCFG); + dwc2_set_clock_switch_timer(hsotg); + /* Reset after a PHY select */ retval = dwc2_core_reset(hsotg, false); diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index a141f83aba0c..34127b890b2a 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -288,6 +288,11 @@ enum dwc2_ep0_state { * core has been configured to work at either data path * width. * 8 or 16 (default 16 if available) + * @eusb2_disc: Specifies whether eUSB2 PHY disconnect support flow + * applicable or no. Applicable in device mode of HSOTG + * and HS IOT cores v5.00 or higher. + * 0 - eUSB2 PHY disconnect support flow not applicable + * 1 - eUSB2 PHY disconnect support flow applicable * @phy_ulpi_ddr: Specifies whether the ULPI operates at double or single * data rate. This parameter is only applicable if phy_type * is ULPI. @@ -442,6 +447,7 @@ struct dwc2_core_params { #define DWC2_SPEED_PARAM_LOW 2 u8 phy_utmi_width; + bool eusb2_disc; bool phy_ulpi_ddr; bool phy_ulpi_ext_vbus; bool enable_dynamic_fifo; @@ -661,6 +667,7 @@ struct dwc2_hw_params { /** * struct dwc2_gregs_backup - Holds global registers state before * entering partial power down + * @gintsts: Backup of GINTSTS register * @gotgctl: Backup of GOTGCTL register * @gintmsk: Backup of GINTMSK register * @gahbcfg: Backup of GAHBCFG register @@ -677,6 +684,7 @@ struct dwc2_hw_params { * @valid: True if registers values backuped. */ struct dwc2_gregs_backup { + u32 gintsts; u32 gotgctl; u32 gintmsk; u32 gahbcfg; @@ -1110,8 +1118,10 @@ struct dwc2_hsotg { #define DWC2_CORE_REV_3_10a 0x4f54310a #define DWC2_CORE_REV_4_00a 0x4f54400a #define DWC2_CORE_REV_4_20a 0x4f54420a +#define DWC2_CORE_REV_5_00a 0x4f54500a #define DWC2_FS_IOT_REV_1_00a 0x5531100a #define DWC2_HS_IOT_REV_1_00a 0x5532100a +#define DWC2_HS_IOT_REV_5_00a 0x5532500a #define DWC2_CORE_REV_MASK 0x0000ffff /* DWC OTG HW Core ID */ @@ -1119,6 +1129,9 @@ struct dwc2_hsotg { #define DWC2_FS_IOT_ID 0x55310000 #define DWC2_HS_IOT_ID 0x55320000 +#define DWC2_RESTORE_DCTL BIT(0) +#define DWC2_RESTORE_DCFG BIT(1) + #if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE) union dwc2_hcd_internal_flags { u32 d32; @@ -1412,7 +1425,7 @@ int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode); #define dwc2_is_device_connected(hsotg) (hsotg->connected) #define dwc2_is_device_enabled(hsotg) (hsotg->enabled) int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg); -int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup); +int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, unsigned int flags); int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg); int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, int reset); @@ -1427,6 +1440,9 @@ int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg); int dwc2_hsotg_tx_fifo_average_depth(struct dwc2_hsotg *hsotg); void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg); void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg); +int dwc2_gadget_backup_critical_registers(struct dwc2_hsotg *hsotg); +int dwc2_gadget_restore_critical_registers(struct dwc2_hsotg *hsotg, + unsigned int flags); static inline void dwc2_clear_fifo_map(struct dwc2_hsotg *hsotg) { hsotg->fifo_map = 0; } #else @@ -1451,7 +1467,7 @@ static inline int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, static inline int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg) { return 0; } static inline int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, - int remote_wakeup) + unsigned int flags) { return 0; } static inline int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg) { return 0; } @@ -1474,6 +1490,11 @@ static inline int dwc2_hsotg_tx_fifo_average_depth(struct dwc2_hsotg *hsotg) { return 0; } static inline void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg) {} static inline void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg) {} +static inline int dwc2_gadget_backup_critical_registers(struct dwc2_hsotg *hsotg) +{ return 0; } +static inline int dwc2_gadget_restore_critical_registers(struct dwc2_hsotg *hsotg, + unsigned int flags) +{ return 0; } static inline void dwc2_clear_fifo_map(struct dwc2_hsotg *hsotg) {} #endif @@ -1497,6 +1518,8 @@ int dwc2_host_exit_partial_power_down(struct dwc2_hsotg *hsotg, void dwc2_host_enter_clock_gating(struct dwc2_hsotg *hsotg); void dwc2_host_exit_clock_gating(struct dwc2_hsotg *hsotg, int rem_wakeup); bool dwc2_host_can_poweroff_phy(struct dwc2_hsotg *dwc2); +int dwc2_host_backup_critical_registers(struct dwc2_hsotg *hsotg); +int dwc2_host_restore_critical_registers(struct dwc2_hsotg *hsotg); static inline void dwc2_host_schedule_phy_reset(struct dwc2_hsotg *hsotg) { schedule_work(&hsotg->phy_reset_work); } #else @@ -1536,6 +1559,10 @@ static inline void dwc2_host_exit_clock_gating(struct dwc2_hsotg *hsotg, int rem_wakeup) {} static inline bool dwc2_host_can_poweroff_phy(struct dwc2_hsotg *dwc2) { return false; } +static inline int dwc2_host_backup_critical_registers(struct dwc2_hsotg *hsotg) +{ return 0; } +static inline int dwc2_host_restore_critical_registers(struct dwc2_hsotg *hsotg) +{ return 0; } static inline void dwc2_host_schedule_phy_reset(struct dwc2_hsotg *hsotg) {} #endif diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 26d752a4c3ca..7d3e641806f8 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -84,6 +84,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) u32 gotgint; u32 gotgctl; u32 gintmsk; + u32 pcgctl; gotgint = dwc2_readl(hsotg, GOTGINT); gotgctl = dwc2_readl(hsotg, GOTGCTL); @@ -96,8 +97,22 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) dwc2_op_state_str(hsotg)); gotgctl = dwc2_readl(hsotg, GOTGCTL); - if (dwc2_is_device_mode(hsotg)) + if (dwc2_is_device_mode(hsotg)) { + if (hsotg->params.eusb2_disc) { + /* Clear the Gate hclk. */ + pcgctl = dwc2_readl(hsotg, PCGCTL); + pcgctl &= ~PCGCTL_GATEHCLK; + dwc2_writel(hsotg, pcgctl, PCGCTL); + udelay(5); + + /* Clear Phy Clock bit. */ + pcgctl = dwc2_readl(hsotg, PCGCTL); + pcgctl &= ~PCGCTL_STOPPCLK; + dwc2_writel(hsotg, pcgctl, PCGCTL); + udelay(5); + } dwc2_hsotg_disconnect(hsotg); + } if (hsotg->op_state == OTG_STATE_B_HOST) { hsotg->op_state = OTG_STATE_B_PERIPHERAL; @@ -117,7 +132,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) * disconnected */ /* Reset to a clean state */ - hsotg->lx_state = DWC2_L0; + hsotg->lx_state = DWC2_L3; } gotgctl = dwc2_readl(hsotg, GOTGCTL); @@ -286,7 +301,7 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg) hsotg->lx_state); if (dwc2_is_device_mode(hsotg)) { - if (hsotg->lx_state == DWC2_L2) { + if (hsotg->lx_state != DWC2_L0) { if (hsotg->in_ppd) { ret = dwc2_exit_partial_power_down(hsotg, 0, true); @@ -714,6 +729,11 @@ static inline void dwc_handle_gpwrdn_disc_det(struct dwc2_hsotg *hsotg, gpwrdn_tmp &= ~GPWRDN_PMUINTSEL; dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); + /* Reset ULPI latch */ + gpwrdn = dwc2_readl(hsotg, GPWRDN); + gpwrdn &= ~GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + dwc2_writel(hsotg, gpwrdn, GPWRDN); + /* De-assert Wakeup Logic */ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PMUACTV; diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c index 1d72ece9cfe4..3116ac72747f 100644 --- a/drivers/usb/dwc2/debugfs.c +++ b/drivers/usb/dwc2/debugfs.c @@ -686,6 +686,7 @@ static int params_show(struct seq_file *seq, void *v) print_param(seq, p, host_channels); print_param(seq, p, phy_type); print_param(seq, p, phy_utmi_width); + print_param(seq, p, eusb2_disc); print_param(seq, p, phy_ulpi_ddr); print_param(seq, p, phy_ulpi_ext_vbus); print_param(seq, p, i2c_enable); @@ -701,6 +702,7 @@ static int params_show(struct seq_file *seq, void *v) print_param(seq, p, uframe_sched); print_param(seq, p, external_id_pin_ctl); print_param(seq, p, power_down); + print_param(seq, p, no_clock_gating); print_param(seq, p, lpm); print_param(seq, p, lpm_clock_gating); print_param(seq, p, besl); diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c index a8605b02115b..1ad8fa3f862a 100644 --- a/drivers/usb/dwc2/drd.c +++ b/drivers/usb/dwc2/drd.c @@ -127,6 +127,15 @@ static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role) role = USB_ROLE_DEVICE; } + if ((IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || + IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)) && + dwc2_is_device_mode(hsotg) && + hsotg->lx_state == DWC2_L2 && + hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_NONE && + hsotg->bus_suspended && + !hsotg->params.no_clock_gating) + dwc2_gadget_exit_clock_gating(hsotg, 0); + if (role == USB_ROLE_HOST) { already = dwc2_ovr_avalid(hsotg, true); } else if (role == USB_ROLE_DEVICE) { diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index b2f6da5b65cc..300ea4969f0c 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -885,10 +885,10 @@ static void dwc2_gadget_config_nonisoc_xfer_ddma(struct dwc2_hsotg_ep *hs_ep, } /* DMA sg buffer */ - for_each_sg(ureq->sg, sg, ureq->num_sgs, i) { + for_each_sg(ureq->sg, sg, ureq->num_mapped_sgs, i) { dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &desc, sg_dma_address(sg) + sg->offset, sg_dma_len(sg), - sg_is_last(sg)); + (i == (ureq->num_mapped_sgs - 1))); desc_count += hs_ep->desc_count; } @@ -3424,8 +3424,11 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, dwc2_hsotg_init_fifo(hsotg); - if (!is_usb_reset) + if (!is_usb_reset) { dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON); + if (hsotg->params.eusb2_disc) + dwc2_set_bit(hsotg, GOTGCTL, GOTGCTL_EUSB2_DISC_SUPP); + } dcfg |= DCFG_EPMISCNT(1); @@ -4612,6 +4615,7 @@ static int dwc2_hsotg_udc_stop(struct usb_gadget *gadget) spin_lock_irqsave(&hsotg->lock, flags); hsotg->driver = NULL; + hsotg->gadget.dev.of_node = NULL; hsotg->gadget.speed = USB_SPEED_UNKNOWN; hsotg->enabled = 0; @@ -5200,11 +5204,11 @@ int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg) * if controller power were disabled. * * @hsotg: Programming view of the DWC_otg controller - * @remote_wakeup: Indicates whether resume is initiated by Device or Host. + * @flags: Defines which registers should be restored. * * Return: 0 if successful, negative error code otherwise */ -int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup) +int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, unsigned int flags) { struct dwc2_dregs_backup *dr; int i; @@ -5220,7 +5224,10 @@ int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup) } dr->valid = false; - if (!remote_wakeup) + if (flags & DWC2_RESTORE_DCFG) + dwc2_writel(hsotg, dr->dcfg, DCFG); + + if (flags & DWC2_RESTORE_DCTL) dwc2_writel(hsotg, dr->dctl, DCTL); dwc2_writel(hsotg, dr->daintmsk, DAINTMSK); @@ -5306,6 +5313,49 @@ void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "GREFCLK=0x%08x\n", dwc2_readl(hsotg, GREFCLK)); } +int dwc2_gadget_backup_critical_registers(struct dwc2_hsotg *hsotg) +{ + int ret; + + /* Backup all registers */ + ret = dwc2_backup_global_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to backup global registers\n", + __func__); + return ret; + } + + ret = dwc2_backup_device_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to backup device registers\n", + __func__); + return ret; + } + + return 0; +} + +int dwc2_gadget_restore_critical_registers(struct dwc2_hsotg *hsotg, + unsigned int flags) +{ + int ret; + + ret = dwc2_restore_global_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to restore registers\n", + __func__); + return ret; + } + ret = dwc2_restore_device_registers(hsotg, flags); + if (ret) { + dev_err(hsotg->dev, "%s: failed to restore device registers\n", + __func__); + return ret; + } + + return 0; +} + /** * dwc2_gadget_enter_hibernation() - Put controller in Hibernation. * @@ -5316,25 +5366,34 @@ void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg) int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg) { u32 gpwrdn; + u32 gusbcfg; + u32 pcgcctl; int ret = 0; /* Change to L2(suspend) state */ hsotg->lx_state = DWC2_L2; dev_dbg(hsotg->dev, "Start of hibernation completed\n"); - ret = dwc2_backup_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup global registers\n", - __func__); - return ret; - } - ret = dwc2_backup_device_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup device registers\n", - __func__); + ret = dwc2_gadget_backup_critical_registers(hsotg); + if (ret) return ret; - } gpwrdn = GPWRDN_PWRDNRSTN; + udelay(10); + gusbcfg = dwc2_readl(hsotg, GUSBCFG); + if (gusbcfg & GUSBCFG_ULPI_UTMI_SEL) { + /* ULPI interface */ + gpwrdn |= GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + } + dwc2_writel(hsotg, gpwrdn, GPWRDN); + udelay(10); + + /* Suspend the Phy Clock */ + pcgcctl = dwc2_readl(hsotg, PCGCTL); + pcgcctl |= PCGCTL_STOPPCLK; + dwc2_writel(hsotg, pcgcctl, PCGCTL); + udelay(10); + + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PMUACTV; dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); @@ -5393,6 +5452,7 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, u32 gpwrdn; u32 dctl; int ret = 0; + unsigned int flags = 0; struct dwc2_gregs_backup *gr; struct dwc2_dregs_backup *dr; @@ -5435,6 +5495,11 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, if (reset) dwc2_clear_bit(hsotg, DCFG, DCFG_DEVADDR_MASK); + /* Reset ULPI latch */ + gpwrdn = dwc2_readl(hsotg, GPWRDN); + gpwrdn &= ~GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + dwc2_writel(hsotg, gpwrdn, GPWRDN); + /* De-assert Wakeup Logic */ gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PMUACTV; @@ -5450,6 +5515,7 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, dctl = dwc2_readl(hsotg, DCTL); dctl |= DCTL_PWRONPRGDONE; dwc2_writel(hsotg, dctl, DCTL); + flags |= DWC2_RESTORE_DCTL; } /* Wait for interrupts which must be cleared */ mdelay(2); @@ -5457,20 +5523,9 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Restore global registers */ - ret = dwc2_restore_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore registers\n", - __func__); - return ret; - } - - /* Restore device registers */ - ret = dwc2_restore_device_registers(hsotg, rem_wakeup); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore device registers\n", - __func__); + ret = dwc2_gadget_restore_critical_registers(hsotg, flags); + if (ret) return ret; - } if (rem_wakeup) { mdelay(10); @@ -5504,19 +5559,9 @@ int dwc2_gadget_enter_partial_power_down(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "Entering device partial power down started.\n"); /* Backup all registers */ - ret = dwc2_backup_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup global registers\n", - __func__); - return ret; - } - - ret = dwc2_backup_device_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup device registers\n", - __func__); + ret = dwc2_gadget_backup_critical_registers(hsotg); + if (ret) return ret; - } /* * Clear any pending interrupts since dwc2 will not be able to @@ -5563,11 +5608,8 @@ int dwc2_gadget_exit_partial_power_down(struct dwc2_hsotg *hsotg, { u32 pcgcctl; u32 dctl; - struct dwc2_dregs_backup *dr; int ret = 0; - dr = &hsotg->dr_backup; - dev_dbg(hsotg->dev, "Exiting device partial Power Down started.\n"); pcgcctl = dwc2_readl(hsotg, PCGCTL); @@ -5584,21 +5626,10 @@ int dwc2_gadget_exit_partial_power_down(struct dwc2_hsotg *hsotg, udelay(100); if (restore) { - ret = dwc2_restore_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore registers\n", - __func__); - return ret; - } - /* Restore DCFG */ - dwc2_writel(hsotg, dr->dcfg, DCFG); - - ret = dwc2_restore_device_registers(hsotg, 0); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore device registers\n", - __func__); + ret = dwc2_gadget_restore_critical_registers(hsotg, DWC2_RESTORE_DCTL | + DWC2_RESTORE_DCFG); + if (ret) return ret; - } } /* Set the Power-On Programming done bit */ diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index dd5b1c5691e1..60ef8092259a 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -3546,11 +3546,9 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, port_status |= USB_PORT_STAT_C_OVERCURRENT << 16; } - if (!hsotg->flags.b.port_connect_status) { + if (dwc2_is_device_mode(hsotg)) { /* - * The port is disconnected, which means the core is - * either in device mode or it soon will be. Just - * return 0's for the remainder of the port status + * Just return 0's for the remainder of the port status * since the port register can't be read if the core * is in device mode. */ @@ -3620,13 +3618,11 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, if (wvalue != USB_PORT_FEAT_TEST && (!windex || windex > 1)) goto error; - if (!hsotg->flags.b.port_connect_status) { + if (dwc2_is_device_mode(hsotg)) { /* - * The port is disconnected, which means the core is - * either in device mode or it soon will be. Just - * return without doing anything since the port - * register can't be written if the core is in device - * mode. + * Just return 0's for the remainder of the port status + * since the port register can't be read if the core + * is in device mode. */ break; } @@ -4349,7 +4345,7 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd) if (hsotg->bus_suspended) goto skip_power_saving; - if (hsotg->flags.b.port_connect_status == 0) + if (!(dwc2_read_hprt0(hsotg) & HPRT0_CONNSTS)) goto skip_power_saving; switch (hsotg->params.power_down) { @@ -4431,6 +4427,7 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd) * Power Down mode. */ if (hprt0 & HPRT0_CONNSTS) { + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); hsotg->lx_state = DWC2_L0; goto unlock; } @@ -5084,7 +5081,7 @@ static void dwc2_hcd_free(struct dwc2_hsotg *hsotg) cancel_work_sync(&hsotg->phy_reset_work); - del_timer(&hsotg->wkp_timer); + timer_delete(&hsotg->wkp_timer); } static void dwc2_hcd_release(struct dwc2_hsotg *hsotg) @@ -5477,6 +5474,49 @@ int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg) return 0; } +int dwc2_host_backup_critical_registers(struct dwc2_hsotg *hsotg) +{ + int ret; + + /* Backup all registers */ + ret = dwc2_backup_global_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to backup global registers\n", + __func__); + return ret; + } + + ret = dwc2_backup_host_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to backup host registers\n", + __func__); + return ret; + } + + return 0; +} + +int dwc2_host_restore_critical_registers(struct dwc2_hsotg *hsotg) +{ + int ret; + + ret = dwc2_restore_global_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to restore registers\n", + __func__); + return ret; + } + + ret = dwc2_restore_host_registers(hsotg); + if (ret) { + dev_err(hsotg->dev, "%s: failed to restore host registers\n", + __func__); + return ret; + } + + return 0; +} + /** * dwc2_host_enter_hibernation() - Put controller in Hibernation. * @@ -5492,18 +5532,9 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg) u32 gpwrdn; dev_dbg(hsotg->dev, "Preparing host for hibernation\n"); - ret = dwc2_backup_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup global registers\n", - __func__); - return ret; - } - ret = dwc2_backup_host_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup host registers\n", - __func__); + ret = dwc2_host_backup_critical_registers(hsotg); + if (ret) return ret; - } /* Enter USB Suspend Mode */ hprt0 = dwc2_readl(hsotg, HPRT0); @@ -5525,6 +5556,11 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg) gusbcfg = dwc2_readl(hsotg, GUSBCFG); if (gusbcfg & GUSBCFG_ULPI_UTMI_SEL) { /* ULPI interface */ + udelay(10); + gpwrdn = dwc2_readl(hsotg, GPWRDN); + gpwrdn |= GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + dwc2_writel(hsotg, gpwrdn, GPWRDN); + udelay(10); /* Suspend the Phy Clock */ pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl |= PCGCTL_STOPPCLK; @@ -5631,6 +5667,11 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG); dwc2_writel(hsotg, hr->hcfg, HCFG); + /* Reset ULPI latch */ + gpwrdn = dwc2_readl(hsotg, GPWRDN); + gpwrdn &= ~GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY; + dwc2_writel(hsotg, gpwrdn, GPWRDN); + /* De-assert Wakeup Logic */ if (!(rem_wakeup && hsotg->hw_params.snpsid >= DWC2_CORE_REV_4_30a)) { gpwrdn = dwc2_readl(hsotg, GPWRDN); @@ -5687,20 +5728,9 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Restore global registers */ - ret = dwc2_restore_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore registers\n", - __func__); - return ret; - } - - /* Restore host registers */ - ret = dwc2_restore_host_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore host registers\n", - __func__); + ret = dwc2_host_restore_critical_registers(hsotg); + if (ret) return ret; - } if (rem_wakeup) { dwc2_hcd_rem_wakeup(hsotg); @@ -5767,19 +5797,9 @@ int dwc2_host_enter_partial_power_down(struct dwc2_hsotg *hsotg) dev_warn(hsotg->dev, "Suspend wasn't generated\n"); /* Backup all registers */ - ret = dwc2_backup_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup global registers\n", - __func__); - return ret; - } - - ret = dwc2_backup_host_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to backup host registers\n", - __func__); + ret = dwc2_host_backup_critical_registers(hsotg); + if (ret) return ret; - } /* * Clear any pending interrupts since dwc2 will not be able to @@ -5848,19 +5868,9 @@ int dwc2_host_exit_partial_power_down(struct dwc2_hsotg *hsotg, udelay(100); if (restore) { - ret = dwc2_restore_global_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore registers\n", - __func__); - return ret; - } - - ret = dwc2_restore_host_registers(hsotg); - if (ret) { - dev_err(hsotg->dev, "%s: failed to restore host registers\n", - __func__); + ret = dwc2_host_restore_critical_registers(hsotg); + if (ret) return ret; - } } /* Drive resume signaling and exit suspend mode on the port. */ diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c index 0d4495c6b9f7..b0098792dd22 100644 --- a/drivers/usb/dwc2/hcd_queue.c +++ b/drivers/usb/dwc2/hcd_queue.c @@ -16,6 +16,7 @@ #include <linux/interrupt.h> #include <linux/dma-mapping.h> #include <linux/io.h> +#include <linux/seq_buf.h> #include <linux/slab.h> #include <linux/usb.h> @@ -360,41 +361,6 @@ static unsigned long *dwc2_get_ls_map(struct dwc2_hsotg *hsotg, #ifdef DWC2_PRINT_SCHEDULE /* - * cat_printf() - A printf() + strcat() helper - * - * This is useful for concatenating a bunch of strings where each string is - * constructed using printf. - * - * @buf: The destination buffer; will be updated to point after the printed - * data. - * @size: The number of bytes in the buffer (includes space for '\0'). - * @fmt: The format for printf. - * @...: The args for printf. - */ -static __printf(3, 4) -void cat_printf(char **buf, size_t *size, const char *fmt, ...) -{ - va_list args; - int i; - - if (*size == 0) - return; - - va_start(args, fmt); - i = vsnprintf(*buf, *size, fmt, args); - va_end(args); - - if (i >= *size) { - (*buf)[*size - 1] = '\0'; - *buf += *size; - *size = 0; - } else { - *buf += i; - *size -= i; - } -} - -/* * pmap_print() - Print the given periodic map * * Will attempt to print out the periodic schedule. @@ -416,9 +382,7 @@ static void pmap_print(unsigned long *map, int bits_per_period, int period; for (period = 0; period < periods_in_map; period++) { - char tmp[64]; - char *buf = tmp; - size_t buf_size = sizeof(tmp); + DECLARE_SEQ_BUF(buf, 64); int period_start = period * bits_per_period; int period_end = period_start + bits_per_period; int start = 0; @@ -442,19 +406,19 @@ static void pmap_print(unsigned long *map, int bits_per_period, continue; if (!printed) - cat_printf(&buf, &buf_size, "%s %d: ", - period_name, period); + seq_buf_printf(&buf, "%s %d: ", + period_name, period); else - cat_printf(&buf, &buf_size, ", "); + seq_buf_puts(&buf, ", "); printed = true; - cat_printf(&buf, &buf_size, "%d %s -%3d %s", start, - units, start + count - 1, units); + seq_buf_printf(&buf, "%d %s -%3d %s", start, + units, start + count - 1, units); count = 0; } if (printed) - print_fn(tmp, print_data); + print_fn(seq_buf_str(&buf), print_data); } } @@ -1338,7 +1302,7 @@ static int dwc2_schedule_periodic(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) } /* Cancel pending unreserve; if canceled OK, unreserve was pending */ - if (del_timer(&qh->unreserve_timer)) + if (timer_delete(&qh->unreserve_timer)) WARN_ON(!qh->unreserve_pending); /* @@ -1495,8 +1459,7 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh, /* Initialize QH */ qh->hsotg = hsotg; timer_setup(&qh->unreserve_timer, dwc2_unreserve_timer_fn, 0); - hrtimer_init(&qh->wait_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - qh->wait_timer.function = &dwc2_wait_timer_fn; + hrtimer_setup(&qh->wait_timer, &dwc2_wait_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL); qh->ep_type = ep_type; qh->ep_is_in = ep_is_in; @@ -1651,7 +1614,7 @@ struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg, void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) { /* Make sure any unreserve work is finished. */ - if (del_timer_sync(&qh->unreserve_timer)) { + if (timer_delete_sync(&qh->unreserve_timer)) { unsigned long flags; spin_lock_irqsave(&hsotg->lock, flags); diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h index 12f8c7f86dc9..fe8c87a2f8b5 100644 --- a/drivers/usb/dwc2/hw.h +++ b/drivers/usb/dwc2/hw.h @@ -11,6 +11,7 @@ #define HSOTG_REG(x) (x) #define GOTGCTL HSOTG_REG(0x000) +#define GOTGCTL_EUSB2_DISC_SUPP BIT(28) #define GOTGCTL_CHIRPEN BIT(27) #define GOTGCTL_MULT_VALID_BC_MASK (0x1f << 22) #define GOTGCTL_MULT_VALID_BC_SHIFT 22 @@ -98,6 +99,17 @@ #define GRSTCTL_AHBIDLE BIT(31) #define GRSTCTL_DMAREQ BIT(30) #define GRSTCTL_CSFTRST_DONE BIT(29) +#define GRSTCTL_CLOCK_SWITH_TIMER_MASK (0x7 << 11) +#define GRSTCTL_CLOCK_SWITH_TIMER_SHIFT 11 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_19 0x0 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_15 0x1 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_147 0x2 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_50 0x3 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_100 0x4 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_125 0x5 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_200 0x6 +#define GRSTCTL_CLOCK_SWITH_TIMER_VALUE_DIS 0x7 +#define GRSTCTL_CLOCK_SWITH_TIMER(_x) ((_x) << 11) #define GRSTCTL_TXFNUM_MASK (0x1f << 6) #define GRSTCTL_TXFNUM_SHIFT 6 #define GRSTCTL_TXFNUM_LIMIT 0x1f @@ -332,6 +344,8 @@ #define GLPMCFG_LPMCAP BIT(0) #define GPWRDN HSOTG_REG(0x0058) + +#define GPWRDN_ULPI_LATCH_EN_DURING_HIB_ENTRY BIT(29) #define GPWRDN_MULT_VAL_ID_BC_MASK (0x1f << 24) #define GPWRDN_MULT_VAL_ID_BC_SHIFT 24 #define GPWRDN_ADP_INT BIT(23) diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index eb677c3cfd0b..4d73fae80b12 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -133,7 +133,15 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg) p->no_clock_gating = true; } -static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg) +static void dwc2_set_ltq_danube_params(struct dwc2_hsotg *hsotg) +{ + struct dwc2_core_params *p = &hsotg->params; + + p->otg_caps.hnp_support = false; + p->otg_caps.srp_support = false; +} + +static void dwc2_set_ltq_ase_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; @@ -142,12 +150,21 @@ static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg) p->host_rx_fifo_size = 288; p->host_nperio_tx_fifo_size = 128; p->host_perio_tx_fifo_size = 96; - p->max_transfer_size = 65535; - p->max_packet_count = 511; p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; } +static void dwc2_set_ltq_xrx200_params(struct dwc2_hsotg *hsotg) +{ + struct dwc2_core_params *p = &hsotg->params; + + p->otg_caps.hnp_support = false; + p->otg_caps.srp_support = false; + p->host_rx_fifo_size = 288; + p->host_nperio_tx_fifo_size = 128; + p->host_perio_tx_fifo_size = 136; +} + static void dwc2_set_amlogic_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; @@ -201,6 +218,25 @@ static void dwc2_set_amcc_params(struct dwc2_hsotg *hsotg) p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; } +static void dwc2_set_cv1800_params(struct dwc2_hsotg *hsotg) +{ + struct dwc2_core_params *p = &hsotg->params; + + p->otg_caps.hnp_support = false; + p->otg_caps.srp_support = false; + p->host_dma = false; + p->g_dma = false; + p->speed = DWC2_SPEED_PARAM_HIGH; + p->phy_type = DWC2_PHY_TYPE_PARAM_UTMI; + p->phy_utmi_width = 16; + p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; + p->lpm = false; + p->lpm_clock_gating = false; + p->besl = false; + p->hird_threshold_en = false; + p->power_down = DWC2_POWER_DOWN_PARAM_NONE; +} + static void dwc2_set_stm32f4x9_fsotg_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; @@ -278,8 +314,11 @@ const struct of_device_id dwc2_of_match_table[] = { { .compatible = "ingenic,x1830-otg", .data = dwc2_set_x1600_params }, { .compatible = "ingenic,x2000-otg", .data = dwc2_set_x2000_params }, { .compatible = "rockchip,rk3066-usb", .data = dwc2_set_rk_params }, - { .compatible = "lantiq,arx100-usb", .data = dwc2_set_ltq_params }, - { .compatible = "lantiq,xrx200-usb", .data = dwc2_set_ltq_params }, + { .compatible = "lantiq,danube-usb", .data = &dwc2_set_ltq_danube_params }, + { .compatible = "lantiq,ase-usb", .data = &dwc2_set_ltq_ase_params }, + { .compatible = "lantiq,arx100-usb", .data = &dwc2_set_ltq_ase_params }, + { .compatible = "lantiq,xrx200-usb", .data = &dwc2_set_ltq_xrx200_params }, + { .compatible = "lantiq,xrx300-usb", .data = &dwc2_set_ltq_xrx200_params }, { .compatible = "snps,dwc2" }, { .compatible = "samsung,s3c6400-hsotg", .data = dwc2_set_s3c6400_params }, @@ -295,6 +334,8 @@ const struct of_device_id dwc2_of_match_table[] = { .data = dwc2_set_amlogic_a1_params }, { .compatible = "amcc,dwc-otg", .data = dwc2_set_amcc_params }, { .compatible = "apm,apm82181-dwc-otg", .data = dwc2_set_amcc_params }, + { .compatible = "sophgo,cv1800-usb", + .data = dwc2_set_cv1800_params }, { .compatible = "st,stm32f4x9-fsotg", .data = dwc2_set_stm32f4x9_fsotg_params }, { .compatible = "st,stm32f4x9-hsotg" }, @@ -311,6 +352,7 @@ const struct of_device_id dwc2_of_match_table[] = { MODULE_DEVICE_TABLE(of, dwc2_of_match_table); const struct acpi_device_id dwc2_acpi_match[] = { + /* This ID refers to the same USB IP as of_device_id brcm,bcm2835-usb */ { "BCM2848", (kernel_ulong_t)dwc2_set_bcm_params }, { }, }; @@ -475,6 +517,7 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg) dwc2_set_param_lpm(hsotg); p->phy_ulpi_ddr = false; p->phy_ulpi_ext_vbus = false; + p->eusb2_disc = false; p->enable_dynamic_fifo = hw->enable_dynamic_fifo; p->en_multiple_tx_fifo = hw->en_multiple_tx_fifo; @@ -737,6 +780,25 @@ static void dwc2_check_param_tx_fifo_sizes(struct dwc2_hsotg *hsotg) } } +static void dwc2_check_param_eusb2_disc(struct dwc2_hsotg *hsotg) +{ + u32 gsnpsid; + + if (!hsotg->params.eusb2_disc) + return; + gsnpsid = dwc2_readl(hsotg, GSNPSID); + /* + * eusb2_disc not supported by FS IOT devices. + * For other cores, it supported starting from version 5.00a + */ + if ((gsnpsid & ~DWC2_CORE_REV_MASK) == DWC2_FS_IOT_ID || + (gsnpsid & DWC2_CORE_REV_MASK) < + (DWC2_CORE_REV_5_00a & DWC2_CORE_REV_MASK)) { + hsotg->params.eusb2_disc = false; + return; + } +} + #define CHECK_RANGE(_param, _min, _max, _def) do { \ if ((int)(hsotg->params._param) < (_min) || \ (hsotg->params._param) > (_max)) { \ @@ -765,6 +827,8 @@ static void dwc2_check_params(struct dwc2_hsotg *hsotg) dwc2_check_param_speed(hsotg); dwc2_check_param_phy_utmi_width(hsotg); dwc2_check_param_power_down(hsotg); + dwc2_check_param_eusb2_disc(hsotg); + CHECK_BOOL(enable_dynamic_fifo, hw->enable_dynamic_fifo); CHECK_BOOL(en_multiple_tx_fifo, hw->en_multiple_tx_fifo); CHECK_BOOL(i2c_enable, hw->i2c_enable); diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 7b84416dfc2b..12b4dc07d08a 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -469,18 +469,6 @@ static int dwc2_driver_probe(struct platform_device *dev) spin_lock_init(&hsotg->lock); - hsotg->irq = platform_get_irq(dev, 0); - if (hsotg->irq < 0) - return hsotg->irq; - - dev_dbg(hsotg->dev, "registering common handler for irq%d\n", - hsotg->irq); - retval = devm_request_irq(hsotg->dev, hsotg->irq, - dwc2_handle_common_intr, IRQF_SHARED, - dev_name(hsotg->dev), hsotg); - if (retval) - return retval; - hsotg->vbus_supply = devm_regulator_get_optional(hsotg->dev, "vbus"); if (IS_ERR(hsotg->vbus_supply)) { retval = PTR_ERR(hsotg->vbus_supply); @@ -524,6 +512,20 @@ static int dwc2_driver_probe(struct platform_device *dev) if (retval) goto error; + hsotg->irq = platform_get_irq(dev, 0); + if (hsotg->irq < 0) { + retval = hsotg->irq; + goto error; + } + + dev_dbg(hsotg->dev, "registering common handler for irq%d\n", + hsotg->irq); + retval = devm_request_irq(hsotg->dev, hsotg->irq, + dwc2_handle_common_intr, IRQF_SHARED, + dev_name(hsotg->dev), hsotg); + if (retval) + goto error; + /* * For OTG cores, set the force mode bits to reflect the value * of dr_mode. Force mode bits should not be touched at any @@ -683,6 +685,14 @@ static int __maybe_unused dwc2_suspend(struct device *dev) regulator_disable(dwc2->usb33d); } + if (is_device_mode) + ret = dwc2_gadget_backup_critical_registers(dwc2); + else + ret = dwc2_host_backup_critical_registers(dwc2); + + if (ret) + return ret; + if (dwc2->ll_hw_enabled && (is_device_mode || dwc2_host_can_poweroff_phy(dwc2))) { ret = __dwc2_lowlevel_hw_disable(dwc2); @@ -692,6 +702,24 @@ static int __maybe_unused dwc2_suspend(struct device *dev) return ret; } +static int dwc2_restore_critical_registers(struct dwc2_hsotg *hsotg) +{ + struct dwc2_gregs_backup *gr; + + gr = &hsotg->gr_backup; + + if (!gr->valid) { + dev_err(hsotg->dev, "No valid register backup, failed to restore\n"); + return -EINVAL; + } + + if (gr->gintsts & GINTSTS_CURMODE_HOST) + return dwc2_host_restore_critical_registers(hsotg); + + return dwc2_gadget_restore_critical_registers(hsotg, DWC2_RESTORE_DCTL | + DWC2_RESTORE_DCFG); +} + static int __maybe_unused dwc2_resume(struct device *dev) { struct dwc2_hsotg *dwc2 = dev_get_drvdata(dev); @@ -704,6 +732,18 @@ static int __maybe_unused dwc2_resume(struct device *dev) } dwc2->phy_off_for_suspend = false; + /* + * During suspend it's possible that the power domain for the + * DWC2 controller is disabled and all register values get lost. + * In case the GUSBCFG register is not initialized, it's clear the + * registers must be restored. + */ + if (!(dwc2_readl(dwc2, GUSBCFG) & GUSBCFG_TOUTCAL_MASK)) { + ret = dwc2_restore_critical_registers(dwc2); + if (ret) + return ret; + } + if (dwc2->params.activate_stm_id_vb_detection) { unsigned long flags; u32 ggpio, gotgctl; @@ -754,7 +794,7 @@ static struct platform_driver dwc2_platform_driver = { .pm = &dwc2_dev_pm_ops, }, .probe = dwc2_driver_probe, - .remove_new = dwc2_driver_remove, + .remove = dwc2_driver_remove, .shutdown = dwc2_driver_shutdown, }; diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 31078f3d41b8..310d182e10b5 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -23,7 +23,7 @@ config USB_DWC3_ULPI controller. choice - bool "DWC3 Mode Selection" + prompt "DWC3 Mode Selection" default USB_DWC3_DUAL_ROLE if (USB && USB_GADGET) default USB_DWC3_HOST if (USB && !USB_GADGET) default USB_DWC3_GADGET if (!USB && USB_GADGET) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 31684cdaaae3..66a08b527165 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -39,6 +39,7 @@ #include "io.h" #include "debug.h" +#include "../host/xhci-ext-caps.h" #define DWC3_DEFAULT_AUTOSUSPEND_DELAY 5000 /* ms */ @@ -104,11 +105,50 @@ static int dwc3_get_dr_mode(struct dwc3 *dwc) return 0; } -void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode) +void dwc3_enable_susphy(struct dwc3 *dwc, bool enable) { u32 reg; + int i; + + for (i = 0; i < dwc->num_usb3_ports; i++) { + reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(i)); + if (enable && !dwc->dis_u3_susphy_quirk) + reg |= DWC3_GUSB3PIPECTL_SUSPHY; + else + reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; + + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(i), reg); + } + + for (i = 0; i < dwc->num_usb2_ports; i++) { + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i)); + if (enable && !dwc->dis_u2_susphy_quirk) + reg |= DWC3_GUSB2PHYCFG_SUSPHY; + else + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg); + } +} + +void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode, bool ignore_susphy) +{ + unsigned int hw_mode; + u32 reg; reg = dwc3_readl(dwc->regs, DWC3_GCTL); + + /* + * For DRD controllers, GUSB3PIPECTL.SUSPENDENABLE and + * GUSB2PHYCFG.SUSPHY should be cleared during mode switching, + * and they can be set after core initialization. + */ + hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0); + if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD && !ignore_susphy) { + if (DWC3_GCTL_PRTCAP(reg) != mode) + dwc3_enable_susphy(dwc, false); + } + reg &= ~(DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG)); reg |= DWC3_GCTL_PRTCAPDIR(mode); dwc3_writel(dwc->regs, DWC3_GCTL, reg); @@ -123,6 +163,7 @@ static void __dwc3_set_mode(struct work_struct *work) int ret; u32 reg; u32 desired_dr_role; + int i; mutex_lock(&dwc->mutex); spin_lock_irqsave(&dwc->lock, flags); @@ -188,7 +229,7 @@ static void __dwc3_set_mode(struct work_struct *work) spin_lock_irqsave(&dwc->lock, flags); - dwc3_set_prtcap(dwc, desired_dr_role); + dwc3_set_prtcap(dwc, desired_dr_role, false); spin_unlock_irqrestore(&dwc->lock, flags); @@ -200,8 +241,12 @@ static void __dwc3_set_mode(struct work_struct *work) } else { if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, true); - phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST); - phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST); + + for (i = 0; i < dwc->num_usb2_ports; i++) + phy_set_mode(dwc->usb2_generic_phy[i], PHY_MODE_USB_HOST); + for (i = 0; i < dwc->num_usb3_ports; i++) + phy_set_mode(dwc->usb3_generic_phy[i], PHY_MODE_USB_HOST); + if (dwc->dis_split_quirk) { reg = dwc3_readl(dwc->regs, DWC3_GUCTL3); reg |= DWC3_GUCTL3_SPLITDISABLE; @@ -216,8 +261,8 @@ static void __dwc3_set_mode(struct work_struct *work) if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, false); - phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE); - phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_DEVICE); + phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE); + phy_set_mode(dwc->usb3_generic_phy[0], PHY_MODE_USB_DEVICE); ret = dwc3_gadget_init(dwc); if (ret) @@ -485,6 +530,13 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc) static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned int length) { struct dwc3_event_buffer *evt; + unsigned int hw_mode; + + hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0); + if (hw_mode == DWC3_GHWPARAMS0_MODE_HOST) { + dwc->ev_buf = NULL; + return 0; + } evt = dwc3_alloc_one_event_buffer(dwc, length); if (IS_ERR(evt)) { @@ -505,6 +557,10 @@ static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned int length) int dwc3_event_buffers_setup(struct dwc3 *dwc) { struct dwc3_event_buffer *evt; + u32 reg; + + if (!dwc->ev_buf) + return 0; evt = dwc->ev_buf; evt->lpos = 0; @@ -514,14 +570,27 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc) upper_32_bits(evt->dma)); dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(0), DWC3_GEVNTSIZ_SIZE(evt->length)); - dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), 0); + /* Clear any stale event */ + reg = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0)); + dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), reg); return 0; } void dwc3_event_buffers_cleanup(struct dwc3 *dwc) { struct dwc3_event_buffer *evt; + u32 reg; + + if (!dwc->ev_buf) + return; + /* + * Exynos platforms may not be able to access event buffer if the + * controller failed to halt on dwc3_core_exit(). + */ + reg = dwc3_readl(dwc->regs, DWC3_DSTS); + if (!(reg & DWC3_DSTS_DEVCTRLHLT)) + return; evt = dwc->ev_buf; @@ -531,7 +600,10 @@ void dwc3_event_buffers_cleanup(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(0), 0); dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(0), DWC3_GEVNTSIZ_INTMASK | DWC3_GEVNTSIZ_SIZE(0)); - dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), 0); + + /* Clear any stale event */ + reg = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0)); + dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), reg); } static void dwc3_core_num_eps(struct dwc3 *dwc) @@ -559,6 +631,18 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) parms->hwparams9 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS9); } +static void dwc3_config_soc_bus(struct dwc3 *dwc) +{ + if (dwc->gsbuscfg0_reqinfo != DWC3_GSBUSCFG0_REQINFO_UNSPECIFIED) { + u32 reg; + + reg = dwc3_readl(dwc->regs, DWC3_GSBUSCFG0); + reg &= ~DWC3_GSBUSCFG0_REQINFO(~0); + reg |= DWC3_GSBUSCFG0_REQINFO(dwc->gsbuscfg0_reqinfo); + dwc3_writel(dwc->regs, DWC3_GSBUSCFG0, reg); + } +} + static int dwc3_core_ulpi_init(struct dwc3 *dwc) { int intf; @@ -575,22 +659,11 @@ static int dwc3_core_ulpi_init(struct dwc3 *dwc) return ret; } -/** - * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core - * @dwc: Pointer to our controller context structure - * - * Returns 0 on success. The USB PHY interfaces are configured but not - * initialized. The PHY interfaces and the PHYs get initialized together with - * the core in dwc3_core_init. - */ -static int dwc3_phy_setup(struct dwc3 *dwc) +static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index) { - unsigned int hw_mode; u32 reg; - hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0); - - reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); + reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(index)); /* * Make sure UX_EXIT_PX is cleared as that causes issues with some @@ -598,22 +671,8 @@ static int dwc3_phy_setup(struct dwc3 *dwc) */ reg &= ~DWC3_GUSB3PIPECTL_UX_EXIT_PX; - /* - * Above 1.94a, it is recommended to set DWC3_GUSB3PIPECTL_SUSPHY - * to '0' during coreConsultant configuration. So default value - * will be '0' when the core is reset. Application needs to set it - * to '1' after the core initialization is completed. - */ - if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) - reg |= DWC3_GUSB3PIPECTL_SUSPHY; - - /* - * For DRD controllers, GUSB3PIPECTL.SUSPENDENABLE must be cleared after - * power-on reset, and it can be set after core initialization, which is - * after device soft-reset during initialization. - */ - if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD) - reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; + /* Ensure the GUSB3PIPECTL.SUSPENDENABLE is cleared prior to phy init. */ + reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; if (dwc->u2ss_inp3_quirk) reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK; @@ -639,15 +698,19 @@ static int dwc3_phy_setup(struct dwc3 *dwc) if (dwc->tx_de_emphasis_quirk) reg |= DWC3_GUSB3PIPECTL_TX_DEEPH(dwc->tx_de_emphasis); - if (dwc->dis_u3_susphy_quirk) - reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; - if (dwc->dis_del_phy_power_chg_quirk) reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE; - dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(index), reg); - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + return 0; +} + +static int dwc3_hs_phy_setup(struct dwc3 *dwc, int index) +{ + u32 reg; + + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(index)); /* Select the HS PHY interface */ switch (DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3)) { @@ -659,7 +722,7 @@ static int dwc3_phy_setup(struct dwc3 *dwc) } else if (dwc->hsphy_interface && !strncmp(dwc->hsphy_interface, "ulpi", 4)) { reg |= DWC3_GUSB2PHYCFG_ULPI_UTMI; - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(index), reg); } else { /* Relying on default value. */ if (!(reg & DWC3_GUSB2PHYCFG_ULPI_UTMI)) @@ -688,25 +751,8 @@ static int dwc3_phy_setup(struct dwc3 *dwc) break; } - /* - * Above 1.94a, it is recommended to set DWC3_GUSB2PHYCFG_SUSPHY to - * '0' during coreConsultant configuration. So default value will - * be '0' when the core is reset. Application needs to set it to - * '1' after the core initialization is completed. - */ - if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) - reg |= DWC3_GUSB2PHYCFG_SUSPHY; - - /* - * For DRD controllers, GUSB2PHYCFG.SUSPHY must be cleared after - * power-on reset, and it can be set after core initialization, which is - * after device soft-reset during initialization. - */ - if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD) - reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; - - if (dwc->dis_u2_susphy_quirk) - reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + /* Ensure the GUSB2PHYCFG.SUSPHY is cleared prior to phy init. */ + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; if (dwc->dis_enblslpm_quirk) reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM; @@ -726,7 +772,35 @@ static int dwc3_phy_setup(struct dwc3 *dwc) if (dwc->ulpi_ext_vbus_drv) reg |= DWC3_GUSB2PHYCFG_ULPIEXTVBUSDRV; - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(index), reg); + + return 0; +} + +/** + * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core + * @dwc: Pointer to our controller context structure + * + * Returns 0 on success. The USB PHY interfaces are configured but not + * initialized. The PHY interfaces and the PHYs get initialized together with + * the core in dwc3_core_init. + */ +static int dwc3_phy_setup(struct dwc3 *dwc) +{ + int i; + int ret; + + for (i = 0; i < dwc->num_usb3_ports; i++) { + ret = dwc3_ss_phy_setup(dwc, i); + if (ret) + return ret; + } + + for (i = 0; i < dwc->num_usb2_ports; i++) { + ret = dwc3_hs_phy_setup(dwc, i); + if (ret) + return ret; + } return 0; } @@ -734,23 +808,53 @@ static int dwc3_phy_setup(struct dwc3 *dwc) static int dwc3_phy_init(struct dwc3 *dwc) { int ret; + int i; + int j; usb_phy_init(dwc->usb2_phy); usb_phy_init(dwc->usb3_phy); - ret = phy_init(dwc->usb2_generic_phy); - if (ret < 0) - goto err_shutdown_usb3_phy; + for (i = 0; i < dwc->num_usb2_ports; i++) { + ret = phy_init(dwc->usb2_generic_phy[i]); + if (ret < 0) + goto err_exit_usb2_phy; + } - ret = phy_init(dwc->usb3_generic_phy); - if (ret < 0) - goto err_exit_usb2_phy; + for (j = 0; j < dwc->num_usb3_ports; j++) { + ret = phy_init(dwc->usb3_generic_phy[j]); + if (ret < 0) + goto err_exit_usb3_phy; + } + + /* + * Above DWC_usb3.0 1.94a, it is recommended to set + * DWC3_GUSB3PIPECTL_SUSPHY and DWC3_GUSB2PHYCFG_SUSPHY to '0' during + * coreConsultant configuration. So default value will be '0' when the + * core is reset. Application needs to set it to '1' after the core + * initialization is completed. + * + * Certain phy requires to be in P0 power state during initialization. + * Make sure GUSB3PIPECTL.SUSPENDENABLE and GUSB2PHYCFG.SUSPHY are clear + * prior to phy init to maintain in the P0 state. + * + * After phy initialization, some phy operations can only be executed + * while in lower P states. Ensure GUSB3PIPECTL.SUSPENDENABLE and + * GUSB2PHYCFG.SUSPHY are set soon after initialization to avoid + * blocking phy ops. + */ + if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) + dwc3_enable_susphy(dwc, true); return 0; +err_exit_usb3_phy: + while (--j >= 0) + phy_exit(dwc->usb3_generic_phy[j]); + err_exit_usb2_phy: - phy_exit(dwc->usb2_generic_phy); -err_shutdown_usb3_phy: + while (--i >= 0) + phy_exit(dwc->usb2_generic_phy[i]); + usb_phy_shutdown(dwc->usb3_phy); usb_phy_shutdown(dwc->usb2_phy); @@ -759,8 +863,13 @@ err_shutdown_usb3_phy: static void dwc3_phy_exit(struct dwc3 *dwc) { - phy_exit(dwc->usb3_generic_phy); - phy_exit(dwc->usb2_generic_phy); + int i; + + for (i = 0; i < dwc->num_usb3_ports; i++) + phy_exit(dwc->usb3_generic_phy[i]); + + for (i = 0; i < dwc->num_usb2_ports; i++) + phy_exit(dwc->usb2_generic_phy[i]); usb_phy_shutdown(dwc->usb3_phy); usb_phy_shutdown(dwc->usb2_phy); @@ -769,23 +878,34 @@ static void dwc3_phy_exit(struct dwc3 *dwc) static int dwc3_phy_power_on(struct dwc3 *dwc) { int ret; + int i; + int j; usb_phy_set_suspend(dwc->usb2_phy, 0); usb_phy_set_suspend(dwc->usb3_phy, 0); - ret = phy_power_on(dwc->usb2_generic_phy); - if (ret < 0) - goto err_suspend_usb3_phy; + for (i = 0; i < dwc->num_usb2_ports; i++) { + ret = phy_power_on(dwc->usb2_generic_phy[i]); + if (ret < 0) + goto err_power_off_usb2_phy; + } - ret = phy_power_on(dwc->usb3_generic_phy); - if (ret < 0) - goto err_power_off_usb2_phy; + for (j = 0; j < dwc->num_usb3_ports; j++) { + ret = phy_power_on(dwc->usb3_generic_phy[j]); + if (ret < 0) + goto err_power_off_usb3_phy; + } return 0; +err_power_off_usb3_phy: + while (--j >= 0) + phy_power_off(dwc->usb3_generic_phy[j]); + err_power_off_usb2_phy: - phy_power_off(dwc->usb2_generic_phy); -err_suspend_usb3_phy: + while (--i >= 0) + phy_power_off(dwc->usb2_generic_phy[i]); + usb_phy_set_suspend(dwc->usb3_phy, 1); usb_phy_set_suspend(dwc->usb2_phy, 1); @@ -794,8 +914,13 @@ err_suspend_usb3_phy: static void dwc3_phy_power_off(struct dwc3 *dwc) { - phy_power_off(dwc->usb3_generic_phy); - phy_power_off(dwc->usb2_generic_phy); + int i; + + for (i = 0; i < dwc->num_usb3_ports; i++) + phy_power_off(dwc->usb3_generic_phy[i]); + + for (i = 0; i < dwc->num_usb2_ports; i++) + phy_power_off(dwc->usb2_generic_phy[i]); usb_phy_set_suspend(dwc->usb3_phy, 1); usb_phy_set_suspend(dwc->usb2_phy, 1); @@ -878,12 +1003,16 @@ static bool dwc3_core_is_valid(struct dwc3 *dwc) static void dwc3_core_setup_global_control(struct dwc3 *dwc) { + unsigned int power_opt; + unsigned int hw_mode; u32 reg; reg = dwc3_readl(dwc->regs, DWC3_GCTL); reg &= ~DWC3_GCTL_SCALEDOWN_MASK; + hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0); + power_opt = DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1); - switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1)) { + switch (power_opt) { case DWC3_GHWPARAMS1_EN_PWROPT_CLK: /** * WORKAROUND: DWC3 revisions between 2.10a and 2.50a have an @@ -916,6 +1045,20 @@ static void dwc3_core_setup_global_control(struct dwc3 *dwc) break; } + /* + * This is a workaround for STAR#4846132, which only affects + * DWC_usb31 version2.00a operating in host mode. + * + * There is a problem in DWC_usb31 version 2.00a operating + * in host mode that would cause a CSR read timeout When CSR + * read coincides with RAM Clock Gating Entry. By disable + * Clock Gating, sacrificing power consumption for normal + * operation. + */ + if (power_opt != DWC3_GHWPARAMS1_EN_PWROPT_NO && + hw_mode != DWC3_GHWPARAMS0_MODE_GADGET && DWC3_VER_IS(DWC31, 200A)) + reg |= DWC3_GCTL_DSBLCLKGTNG; + /* check if current dwc3 is on simulation board */ if (dwc->hwparams.hwparams6 & DWC3_GHWPARAMS6_EN_FPGA) { dev_info(dwc->dev, "Running with FPGA optimizations\n"); @@ -1227,21 +1370,6 @@ static int dwc3_core_init(struct dwc3 *dwc) if (ret) goto err_exit_phy; - if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD && - !DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) { - if (!dwc->dis_u3_susphy_quirk) { - reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); - reg |= DWC3_GUSB3PIPECTL_SUSPHY; - dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); - } - - if (!dwc->dis_u2_susphy_quirk) { - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); - reg |= DWC3_GUSB2PHYCFG_SUSPHY; - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); - } - } - dwc3_core_setup_global_control(dwc); dwc3_core_num_eps(dwc); @@ -1256,6 +1384,8 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc3_set_incr_burst_type(dwc); + dwc3_config_soc_bus(dwc); + ret = dwc3_phy_power_on(dwc); if (ret) goto err_exit_phy; @@ -1278,8 +1408,23 @@ static int dwc3_core_init(struct dwc3 *dwc) } /* + * STAR 9001285599: This issue affects DWC_usb3 version 3.20a + * only. If the PM TIMER ECM is enabled through GUCTL2[19], the + * link compliance test (TD7.21) may fail. If the ECN is not + * enabled (GUCTL2[19] = 0), the controller will use the old timer + * value (5us), which is still acceptable for the link compliance + * test. Therefore, do not enable PM TIMER ECM in 3.20a by + * setting GUCTL2[19] by default; instead, use GUCTL2[19] = 0. + */ + if (DWC3_VER_IS(DWC3, 320A)) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL2); + reg &= ~DWC3_GUCTL2_LC_TIMER; + dwc3_writel(dwc->regs, DWC3_GUCTL2, reg); + } + + /* * When configured in HOST mode, after issuing U3/L2 exit controller - * fails to send proper CRC checksum in CRC5 feild. Because of this + * fails to send proper CRC checksum in CRC5 field. Because of this * behaviour Transaction Error is generated, resulting in reset and * re-enumeration of usb device attached. All the termsel, xcvrsel, * opmode becomes 0 during end of resume. Enabling bit 10 of GUCTL1 @@ -1320,10 +1465,13 @@ static int dwc3_core_init(struct dwc3 *dwc) if (dwc->parkmode_disable_hs_quirk) reg |= DWC3_GUCTL1_PARKMODE_DISABLE_HS; - if (DWC3_VER_IS_WITHIN(DWC3, 290A, ANY) && - (dwc->maximum_speed == USB_SPEED_HIGH || - dwc->maximum_speed == USB_SPEED_FULL)) - reg |= DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK; + if (DWC3_VER_IS_WITHIN(DWC3, 290A, ANY)) { + if (dwc->maximum_speed == USB_SPEED_FULL || + dwc->maximum_speed == USB_SPEED_HIGH) + reg |= DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK; + else + reg &= ~DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK; + } dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); } @@ -1337,9 +1485,33 @@ static int dwc3_core_init(struct dwc3 *dwc) if (hw_mode != DWC3_GHWPARAMS0_MODE_GADGET && (DWC3_IP_IS(DWC31)) && dwc->maximum_speed == USB_SPEED_SUPER) { - reg = dwc3_readl(dwc->regs, DWC3_LLUCTL); - reg |= DWC3_LLUCTL_FORCE_GEN1; - dwc3_writel(dwc->regs, DWC3_LLUCTL, reg); + int i; + + for (i = 0; i < dwc->num_usb3_ports; i++) { + reg = dwc3_readl(dwc->regs, DWC3_LLUCTL(i)); + reg |= DWC3_LLUCTL_FORCE_GEN1; + dwc3_writel(dwc->regs, DWC3_LLUCTL(i), reg); + } + } + + /* + * STAR 9001346572: This issue affects DWC_usb31 versions 1.80a and + * prior. When an active endpoint not currently cached in the host + * controller is chosen to be cached to the same index as an endpoint + * receiving NAKs, the endpoint receiving NAKs enters continuous + * retry mode. This prevents it from being evicted from the host + * controller cache, blocking the new endpoint from being cached and + * serviced. + * + * To resolve this, for controller versions 1.70a and 1.80a, set the + * GUCTL3 bit[16] (USB2.0 Internal Retry Disable) to 1. This bit + * disables the USB2.0 internal retry feature. The GUCTL3[16] register + * function is available only from version 1.70a. + */ + if (DWC3_VER_IS_WITHIN(DWC31, 170A, 180A)) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL3); + reg |= DWC3_GUCTL3_USB20_RETRY_DISABLE; + dwc3_writel(dwc->regs, DWC3_GUCTL3, reg); } return 0; @@ -1358,7 +1530,9 @@ static int dwc3_core_get_phy(struct dwc3 *dwc) { struct device *dev = dwc->dev; struct device_node *node = dev->of_node; + char phy_name[9]; int ret; + u8 i; if (node) { dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0); @@ -1384,22 +1558,38 @@ static int dwc3_core_get_phy(struct dwc3 *dwc) return dev_err_probe(dev, ret, "no usb3 phy configured\n"); } - dwc->usb2_generic_phy = devm_phy_get(dev, "usb2-phy"); - if (IS_ERR(dwc->usb2_generic_phy)) { - ret = PTR_ERR(dwc->usb2_generic_phy); - if (ret == -ENOSYS || ret == -ENODEV) - dwc->usb2_generic_phy = NULL; + for (i = 0; i < dwc->num_usb2_ports; i++) { + if (dwc->num_usb2_ports == 1) + snprintf(phy_name, sizeof(phy_name), "usb2-phy"); else - return dev_err_probe(dev, ret, "no usb2 phy configured\n"); + snprintf(phy_name, sizeof(phy_name), "usb2-%u", i); + + dwc->usb2_generic_phy[i] = devm_phy_get(dev, phy_name); + if (IS_ERR(dwc->usb2_generic_phy[i])) { + ret = PTR_ERR(dwc->usb2_generic_phy[i]); + if (ret == -ENOSYS || ret == -ENODEV) + dwc->usb2_generic_phy[i] = NULL; + else + return dev_err_probe(dev, ret, "failed to lookup phy %s\n", + phy_name); + } } - dwc->usb3_generic_phy = devm_phy_get(dev, "usb3-phy"); - if (IS_ERR(dwc->usb3_generic_phy)) { - ret = PTR_ERR(dwc->usb3_generic_phy); - if (ret == -ENOSYS || ret == -ENODEV) - dwc->usb3_generic_phy = NULL; + for (i = 0; i < dwc->num_usb3_ports; i++) { + if (dwc->num_usb3_ports == 1) + snprintf(phy_name, sizeof(phy_name), "usb3-phy"); else - return dev_err_probe(dev, ret, "no usb3 phy configured\n"); + snprintf(phy_name, sizeof(phy_name), "usb3-%u", i); + + dwc->usb3_generic_phy[i] = devm_phy_get(dev, phy_name); + if (IS_ERR(dwc->usb3_generic_phy[i])) { + ret = PTR_ERR(dwc->usb3_generic_phy[i]); + if (ret == -ENOSYS || ret == -ENODEV) + dwc->usb3_generic_phy[i] = NULL; + else + return dev_err_probe(dev, ret, "failed to lookup phy %s\n", + phy_name); + } } return 0; @@ -1409,27 +1599,30 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) { struct device *dev = dwc->dev; int ret; + int i; switch (dwc->dr_mode) { case USB_DR_MODE_PERIPHERAL: - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE, false); if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, false); - phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE); - phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_DEVICE); + phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE); + phy_set_mode(dwc->usb3_generic_phy[0], PHY_MODE_USB_DEVICE); ret = dwc3_gadget_init(dwc); if (ret) return dev_err_probe(dev, ret, "failed to initialize gadget\n"); break; case USB_DR_MODE_HOST: - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST, false); if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, true); - phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST); - phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST); + for (i = 0; i < dwc->num_usb2_ports; i++) + phy_set_mode(dwc->usb2_generic_phy[i], PHY_MODE_USB_HOST); + for (i = 0; i < dwc->num_usb3_ports; i++) + phy_set_mode(dwc->usb3_generic_phy[i], PHY_MODE_USB_HOST); ret = dwc3_host_init(dwc); if (ret) @@ -1467,7 +1660,28 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc) } /* de-assert DRVVBUS for HOST and OTG mode */ - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE, true); +} + +static void dwc3_get_software_properties(struct dwc3 *dwc) +{ + struct device *tmpdev; + u16 gsbuscfg0_reqinfo; + int ret; + + dwc->gsbuscfg0_reqinfo = DWC3_GSBUSCFG0_REQINFO_UNSPECIFIED; + + /* + * Iterate over all parent nodes for finding swnode properties + * and non-DT (non-ABI) properties. + */ + for (tmpdev = dwc->dev; tmpdev; tmpdev = tmpdev->parent) { + ret = device_property_read_u16(tmpdev, + "snps,gsbuscfg0-reqinfo", + &gsbuscfg0_reqinfo); + if (!ret) + dwc->gsbuscfg0_reqinfo = gsbuscfg0_reqinfo; + } } static void dwc3_get_properties(struct dwc3 *dwc) @@ -1485,8 +1699,6 @@ static void dwc3_get_properties(struct dwc3 *dwc) u8 tx_thr_num_pkt_prd = 0; u8 tx_max_burst_prd = 0; u8 tx_fifo_resize_max_num; - const char *usb_psy_name; - int ret; /* default to highest possible threshold */ lpm_nyet_threshold = 0xf; @@ -1521,13 +1733,6 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->sys_wakeup = device_may_wakeup(dwc->sysdev); - ret = device_property_read_string(dev, "usb-psy-name", &usb_psy_name); - if (ret >= 0) { - dwc->usb_psy = power_supply_get_by_name(usb_psy_name); - if (!dwc->usb_psy) - dev_err(dev, "couldn't get usb power supply\n"); - } - dwc->has_lpm_erratum = device_property_read_bool(dev, "snps,has-lpm-erratum"); device_property_read_u8(dev, "snps,lpm-nyet-threshold", @@ -1645,8 +1850,6 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->tx_thr_num_pkt_prd = tx_thr_num_pkt_prd; dwc->tx_max_burst_prd = tx_max_burst_prd; - dwc->imod_interval = 0; - dwc->tx_fifo_resize_max_num = tx_fifo_resize_max_num; } @@ -1664,21 +1867,19 @@ static void dwc3_check_params(struct dwc3 *dwc) unsigned int hwparam_gen = DWC3_GHWPARAMS3_SSPHY_IFC(dwc->hwparams.hwparams3); - /* Check for proper value of imod_interval */ - if (dwc->imod_interval && !dwc3_has_imod(dwc)) { - dev_warn(dwc->dev, "Interrupt moderation not supported\n"); - dwc->imod_interval = 0; - } - /* + * Enable IMOD for all supporting controllers. + * + * Particularly, DWC_usb3 v3.00a must enable this feature for + * the following reason: + * * Workaround for STAR 9000961433 which affects only version * 3.00a of the DWC_usb3 core. This prevents the controller * interrupt from being masked while handling events. IMOD * allows us to work around this issue. Enable it for the * affected version. */ - if (!dwc->imod_interval && - DWC3_VER_IS(DWC3, 300A)) + if (dwc3_has_imod((dwc))) dwc->imod_interval = 1; /* Check the maximum_speed parameter */ @@ -1766,7 +1967,7 @@ static struct extcon_dev *dwc3_get_extcon(struct dwc3 *dwc) struct extcon_dev *edev = NULL; const char *name; - if (device_property_read_bool(dev, "extcon")) + if (device_property_present(dev, "extcon")) return extcon_get_edev_by_phandle(dev, 0); /* @@ -1881,10 +2082,77 @@ static int dwc3_get_clocks(struct dwc3 *dwc) return 0; } +static int dwc3_get_num_ports(struct dwc3 *dwc) +{ + void __iomem *base; + u8 major_revision; + u32 offset; + u32 val; + + /* + * Remap xHCI address space to access XHCI ext cap regs since it is + * needed to get information on number of ports present. + */ + base = ioremap(dwc->xhci_resources[0].start, + resource_size(&dwc->xhci_resources[0])); + if (!base) + return -ENOMEM; + + offset = 0; + do { + offset = xhci_find_next_ext_cap(base, offset, + XHCI_EXT_CAPS_PROTOCOL); + if (!offset) + break; + + val = readl(base + offset); + major_revision = XHCI_EXT_PORT_MAJOR(val); + + val = readl(base + offset + 0x08); + if (major_revision == 0x03) { + dwc->num_usb3_ports += XHCI_EXT_PORT_COUNT(val); + } else if (major_revision <= 0x02) { + dwc->num_usb2_ports += XHCI_EXT_PORT_COUNT(val); + } else { + dev_warn(dwc->dev, "unrecognized port major revision %d\n", + major_revision); + } + } while (1); + + dev_dbg(dwc->dev, "hs-ports: %u ss-ports: %u\n", + dwc->num_usb2_ports, dwc->num_usb3_ports); + + iounmap(base); + + if (dwc->num_usb2_ports > DWC3_USB2_MAX_PORTS || + dwc->num_usb3_ports > DWC3_USB3_MAX_PORTS) + return -EINVAL; + + return 0; +} + +static struct power_supply *dwc3_get_usb_power_supply(struct dwc3 *dwc) +{ + struct power_supply *usb_psy; + const char *usb_psy_name; + int ret; + + ret = device_property_read_string(dwc->dev, "usb-psy-name", &usb_psy_name); + if (ret < 0) + return NULL; + + usb_psy = power_supply_get_by_name(usb_psy_name); + if (!usb_psy) + return ERR_PTR(-EPROBE_DEFER); + + return usb_psy; +} + static int dwc3_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res, dwc_res; + unsigned int hw_mode; void __iomem *regs; struct dwc3 *dwc; int ret; @@ -1934,6 +2202,12 @@ static int dwc3_probe(struct platform_device *pdev) dwc3_get_properties(dwc); + dwc3_get_software_properties(dwc); + + dwc->usb_psy = dwc3_get_usb_power_supply(dwc); + if (IS_ERR(dwc->usb_psy)) + return dev_err_probe(dev, PTR_ERR(dwc->usb_psy), "couldn't get usb power supply\n"); + dwc->reset = devm_reset_control_array_get_optional_shared(dev); if (IS_ERR(dwc->reset)) { ret = PTR_ERR(dwc->reset); @@ -1968,6 +2242,20 @@ static int dwc3_probe(struct platform_device *pdev) goto err_disable_clks; } + /* + * Currently only DWC3 controllers that are host-only capable + * can have more than one port. + */ + hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0); + if (hw_mode == DWC3_GHWPARAMS0_MODE_HOST) { + ret = dwc3_get_num_ports(dwc); + if (ret) + goto err_disable_clks; + } else { + dwc->num_usb2_ports = 1; + dwc->num_usb3_ports = 1; + } + spin_lock_init(&dwc->lock); mutex_init(&dwc->mutex); @@ -2098,8 +2386,21 @@ assert_reset: static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) { - unsigned long flags; u32 reg; + int i; + + if (!pm_runtime_suspended(dwc->dev) && !PMSG_IS_AUTO(msg)) { + dwc->susphy_state = (dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)) & + DWC3_GUSB2PHYCFG_SUSPHY) || + (dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)) & + DWC3_GUSB3PIPECTL_SUSPHY); + /* + * TI AM62 platform requires SUSPHY to be + * enabled for system suspend to work. + */ + if (!dwc->susphy_state) + dwc3_enable_susphy(dwc, true); + } switch (dwc->current_dr_role) { case DWC3_GCTL_PRTCAP_DEVICE: @@ -2118,17 +2419,21 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) /* Let controller to suspend HSPHY before PHY driver suspends */ if (dwc->dis_u2_susphy_quirk || dwc->dis_enblslpm_quirk) { - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); - reg |= DWC3_GUSB2PHYCFG_ENBLSLPM | - DWC3_GUSB2PHYCFG_SUSPHY; - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + for (i = 0; i < dwc->num_usb2_ports; i++) { + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i)); + reg |= DWC3_GUSB2PHYCFG_ENBLSLPM | + DWC3_GUSB2PHYCFG_SUSPHY; + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg); + } /* Give some time for USB2 PHY to suspend */ usleep_range(5000, 6000); } - phy_pm_runtime_put_sync(dwc->usb2_generic_phy); - phy_pm_runtime_put_sync(dwc->usb3_generic_phy); + for (i = 0; i < dwc->num_usb2_ports; i++) + phy_pm_runtime_put_sync(dwc->usb2_generic_phy[i]); + for (i = 0; i < dwc->num_usb3_ports; i++) + phy_pm_runtime_put_sync(dwc->usb3_generic_phy[i]); break; case DWC3_GCTL_PRTCAP_OTG: /* do nothing during runtime_suspend */ @@ -2136,9 +2441,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) break; if (dwc->current_otg_role == DWC3_OTG_ROLE_DEVICE) { - spin_lock_irqsave(&dwc->lock, flags); dwc3_gadget_suspend(dwc); - spin_unlock_irqrestore(&dwc->lock, flags); synchronize_irq(dwc->irq_gadget); } @@ -2155,9 +2458,9 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) { - unsigned long flags; int ret; u32 reg; + int i; switch (dwc->current_dr_role) { case DWC3_GCTL_PRTCAP_DEVICE: @@ -2165,7 +2468,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) if (ret) return ret; - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE, true); dwc3_gadget_resume(dwc); break; case DWC3_GCTL_PRTCAP_HOST: @@ -2173,21 +2476,25 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) ret = dwc3_core_init_for_resume(dwc); if (ret) return ret; - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST, true); break; } /* Restore GUSB2PHYCFG bits that were modified in suspend */ - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); - if (dwc->dis_u2_susphy_quirk) - reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + for (i = 0; i < dwc->num_usb2_ports; i++) { + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i)); + if (dwc->dis_u2_susphy_quirk) + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; - if (dwc->dis_enblslpm_quirk) - reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM; + if (dwc->dis_enblslpm_quirk) + reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM; - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg); + } - phy_pm_runtime_get_sync(dwc->usb2_generic_phy); - phy_pm_runtime_get_sync(dwc->usb3_generic_phy); + for (i = 0; i < dwc->num_usb2_ports; i++) + phy_pm_runtime_get_sync(dwc->usb2_generic_phy[i]); + for (i = 0; i < dwc->num_usb3_ports; i++) + phy_pm_runtime_get_sync(dwc->usb3_generic_phy[i]); break; case DWC3_GCTL_PRTCAP_OTG: /* nothing to do on runtime_resume */ @@ -2198,15 +2505,13 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) if (ret) return ret; - dwc3_set_prtcap(dwc, dwc->current_dr_role); + dwc3_set_prtcap(dwc, dwc->current_dr_role, true); dwc3_otg_init(dwc); if (dwc->current_otg_role == DWC3_OTG_ROLE_HOST) { dwc3_otg_host_init(dwc); } else if (dwc->current_otg_role == DWC3_OTG_ROLE_DEVICE) { - spin_lock_irqsave(&dwc->lock, flags); dwc3_gadget_resume(dwc); - spin_unlock_irqrestore(&dwc->lock, flags); } break; @@ -2215,6 +2520,11 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) break; } + if (!PMSG_IS_AUTO(msg)) { + /* restore SUSPHY state to that before system suspend. */ + dwc3_enable_susphy(dwc, dwc->susphy_state); + } + return 0; } @@ -2260,7 +2570,11 @@ static int dwc3_runtime_resume(struct device *dev) switch (dwc->current_dr_role) { case DWC3_GCTL_PRTCAP_DEVICE: - dwc3_gadget_process_pending_events(dwc); + if (dwc->pending_events) { + pm_runtime_put(dwc->dev); + dwc->pending_events = false; + enable_irq(dwc->irq_gadget); + } break; case DWC3_GCTL_PRTCAP_HOST: default: @@ -2313,22 +2627,23 @@ static int dwc3_suspend(struct device *dev) static int dwc3_resume(struct device *dev) { struct dwc3 *dwc = dev_get_drvdata(dev); - int ret; + int ret = 0; pinctrl_pm_select_default_state(dev); pm_runtime_disable(dev); - pm_runtime_set_active(dev); + ret = pm_runtime_set_active(dev); + if (ret) + goto out; ret = dwc3_resume_common(dwc, PMSG_RESUME); - if (ret) { + if (ret) pm_runtime_set_suspended(dev); - return ret; - } +out: pm_runtime_enable(dev); - return 0; + return ret; } static void dwc3_complete(struct device *dev) @@ -2350,6 +2665,12 @@ static void dwc3_complete(struct device *dev) static const struct dev_pm_ops dwc3_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(dwc3_suspend, dwc3_resume) .complete = dwc3_complete, + + /* + * Runtime suspend halts the controller on disconnection. It relies on + * platforms with custom connection notification to start the controller + * again. + */ SET_RUNTIME_PM_OPS(dwc3_runtime_suspend, dwc3_runtime_resume, dwc3_runtime_idle) }; @@ -2380,7 +2701,7 @@ MODULE_DEVICE_TABLE(acpi, dwc3_acpi_match); static struct platform_driver dwc3_driver = { .probe = dwc3_probe, - .remove_new = dwc3_remove, + .remove = dwc3_remove, .driver = { .name = "dwc3", .of_match_table = of_match_ptr(of_dwc3_match), diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 7e80dd3d466b..27eae4cf223d 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -33,6 +33,13 @@ #include <linux/power_supply.h> +/* + * DWC3 Multiport controllers support up to 15 High-Speed PHYs + * and 4 SuperSpeed PHYs. + */ +#define DWC3_USB2_MAX_PORTS 15 +#define DWC3_USB3_MAX_PORTS 4 + #define DWC3_MSG_MAX 500 /* Global constants */ @@ -74,7 +81,7 @@ #define DWC3_GSNPSREV_MASK 0xffff #define DWC3_GSNPS_ID(p) (((p) & DWC3_GSNPSID_MASK) >> 16) -/* DWC3 registers memory space boundries */ +/* DWC3 registers memory space boundaries */ #define DWC3_XHCI_REGS_START 0x0 #define DWC3_XHCI_REGS_END 0x7fff #define DWC3_GLOBALS_REGS_START 0xc100 @@ -172,7 +179,7 @@ #define DWC3_OEVTEN 0xcc0C #define DWC3_OSTS 0xcc10 -#define DWC3_LLUCTL 0xd024 +#define DWC3_LLUCTL(n) (0xd024 + ((n) * 0x80)) /* Bit fields */ @@ -187,6 +194,10 @@ #define DWC3_GSBUSCFG0_INCRBRSTENA (1 << 0) /* undefined length enable */ #define DWC3_GSBUSCFG0_INCRBRST_MASK 0xff +/* Global SoC Bus Configuration Register: AHB-prot/AXI-cache/OCP-ReqInfo */ +#define DWC3_GSBUSCFG0_REQINFO(n) (((n) & 0xffff) << 16) +#define DWC3_GSBUSCFG0_REQINFO_UNSPECIFIED 0xffffffff + /* Global Debug LSP MUX Select */ #define DWC3_GDBGLSPMUX_ENDBC BIT(15) /* Host only */ #define DWC3_GDBGLSPMUX_HOSTSELECT(n) ((n) & 0x3fff) @@ -410,9 +421,11 @@ /* Global User Control Register 2 */ #define DWC3_GUCTL2_RST_ACTBITLATER BIT(14) +#define DWC3_GUCTL2_LC_TIMER BIT(19) /* Global User Control Register 3 */ #define DWC3_GUCTL3_SPLITDISABLE BIT(14) +#define DWC3_GUCTL3_USB20_RETRY_DISABLE BIT(16) /* Device Configuration Register */ #define DWC3_DCFG_NUMLANES(n) (((n) & 0x3) << 30) /* DWC_usb32 only */ @@ -452,6 +465,7 @@ #define DWC3_DCTL_TRGTULST_SS_INACT (DWC3_DCTL_TRGTULST(6)) /* These apply for core versions 1.94a and later */ +#define DWC3_DCTL_NYET_THRES_MASK (0xf << 20) #define DWC3_DCTL_NYET_THRES(n) (((n) & 0xf) << 20) #define DWC3_DCTL_KEEP_CONNECT BIT(19) @@ -703,6 +717,7 @@ struct dwc3_event_buffer { /** * struct dwc3_ep - device side endpoint representation * @endpoint: usb endpoint + * @nostream_work: work for handling bulk NoStream * @cancelled_list: list of cancelled requests for this endpoint * @pending_list: list of pending requests for this endpoint * @started_list: list of started requests on this endpoint @@ -729,6 +744,7 @@ struct dwc3_event_buffer { */ struct dwc3_ep { struct usb_ep endpoint; + struct delayed_work nostream_work; struct list_head cancelled_list; struct list_head pending_list; struct list_head started_list; @@ -751,7 +767,7 @@ struct dwc3_ep { #define DWC3_EP_WAIT_TRANSFER_COMPLETE BIT(7) #define DWC3_EP_IGNORE_NEXT_NOSTREAM BIT(8) #define DWC3_EP_FORCE_RESTART_STREAM BIT(9) -#define DWC3_EP_FIRST_STREAM_PRIMED BIT(10) +#define DWC3_EP_STREAM_PRIMED BIT(10) #define DWC3_EP_PENDING_CLEAR_STALL BIT(11) #define DWC3_EP_TXFIFO_RESIZED BIT(12) #define DWC3_EP_DELAY_STOP BIT(13) @@ -903,6 +919,7 @@ struct dwc3_hwparams { #define DWC3_MODE(n) ((n) & 0x7) /* HWPARAMS1 */ +#define DWC3_SPRAM_TYPE(n) (((n) >> 23) & 1) #define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15) /* HWPARAMS3 */ @@ -913,6 +930,9 @@ struct dwc3_hwparams { #define DWC3_NUM_IN_EPS(p) (((p)->hwparams3 & \ (DWC3_NUM_IN_EPS_MASK)) >> 18) +/* HWPARAMS6 */ +#define DWC3_RAM0_DEPTH(n) (((n) & (0xffff0000)) >> 16) + /* HWPARAMS7 */ #define DWC3_RAM1_DEPTH(n) ((n) & 0xffff) @@ -925,18 +945,14 @@ struct dwc3_hwparams { * @request: struct usb_request to be transferred * @list: a list_head used for request queueing * @dep: struct dwc3_ep owning this request - * @sg: pointer to first incomplete sg * @start_sg: pointer to the sg which should be queued next * @num_pending_sgs: counter to pending sgs - * @num_queued_sgs: counter to the number of sgs which already got queued * @remaining: amount of data remaining * @status: internal dwc3 request status tracking * @epnum: endpoint number to which this request refers * @trb: pointer to struct dwc3_trb * @trb_dma: DMA address of @trb * @num_trbs: number of TRBs used by this request - * @needs_extra_trb: true when request needs one extra TRB (either due to ZLP - * or unaligned OUT) * @direction: IN or OUT direction flag * @mapped: true when request has been dma-mapped */ @@ -944,11 +960,9 @@ struct dwc3_request { struct usb_request request; struct list_head list; struct dwc3_ep *dep; - struct scatterlist *sg; struct scatterlist *start_sg; unsigned int num_pending_sgs; - unsigned int num_queued_sgs; unsigned int remaining; unsigned int status; @@ -966,7 +980,6 @@ struct dwc3_request { unsigned int num_trbs; - unsigned int needs_extra_trb:1; unsigned int direction:1; unsigned int mapped:1; }; @@ -1037,8 +1050,10 @@ struct dwc3_scratchpad_array { * @usb_psy: pointer to power supply interface. * @usb2_phy: pointer to USB2 PHY * @usb3_phy: pointer to USB3 PHY - * @usb2_generic_phy: pointer to USB2 PHY - * @usb3_generic_phy: pointer to USB3 PHY + * @usb2_generic_phy: pointer to array of USB2 PHYs + * @usb3_generic_phy: pointer to array of USB3 PHYs + * @num_usb2_ports: number of USB2 ports + * @num_usb3_ports: number of USB3 ports * @phys_ready: flag to indicate that PHYs are ready * @ulpi: pointer to ulpi interface * @ulpi_ready: flag to indicate that ULPI is initialized @@ -1136,6 +1151,8 @@ struct dwc3_scratchpad_array { * @sys_wakeup: set if the device may do system wakeup. * @wakeup_configured: set if the device is configured for remote wakeup. * @suspended: set to track suspend event due to U3/L2. + * @susphy_state: state of DWC3_GUSB2PHYCFG_SUSPHY + DWC3_GUSB3PIPECTL_SUSPHY + * before PM suspend. * @imod_interval: set the interrupt moderation interval in 250ns * increments or 0 to disable. * @max_cfg_eps: current max number of IN eps used across all USB configs. @@ -1144,6 +1161,12 @@ struct dwc3_scratchpad_array { * @num_ep_resized: carries the current number endpoints which have had its tx * fifo resized. * @debug_root: root debugfs directory for this device to put its files in. + * @gsbuscfg0_reqinfo: store GSBUSCFG0.DATRDREQINFO, DESRDREQINFO, + * DATWRREQINFO, and DESWRREQINFO value passed from + * glue driver. + * @wakeup_pending_funcs: Indicates whether any interface has requested for + * function wakeup in bitmap format where bit position + * represents interface_id. */ struct dwc3 { struct work_struct drd_work; @@ -1184,8 +1207,11 @@ struct dwc3 { struct usb_phy *usb2_phy; struct usb_phy *usb3_phy; - struct phy *usb2_generic_phy; - struct phy *usb3_generic_phy; + struct phy *usb2_generic_phy[DWC3_USB2_MAX_PORTS]; + struct phy *usb3_generic_phy[DWC3_USB3_MAX_PORTS]; + + u8 num_usb2_ports; + u8 num_usb3_ports; bool phys_ready; @@ -1250,6 +1276,7 @@ struct dwc3 { #define DWC3_REVISION_290A 0x5533290a #define DWC3_REVISION_300A 0x5533300a #define DWC3_REVISION_310A 0x5533310a +#define DWC3_REVISION_320A 0x5533320a #define DWC3_REVISION_330A 0x5533330a #define DWC31_REVISION_ANY 0x0 @@ -1361,6 +1388,7 @@ struct dwc3 { unsigned sys_wakeup:1; unsigned wakeup_configured:1; unsigned suspended:1; + unsigned susphy_state:1; u16 imod_interval; @@ -1368,6 +1396,8 @@ struct dwc3 { int last_fifo_depth; int num_ep_resized; struct dentry *debug_root; + u32 gsbuscfg0_reqinfo; + u32 wakeup_pending_funcs; }; #define INCRX_BURST_MODE 0 @@ -1532,7 +1562,7 @@ struct dwc3_gadget_ep_cmd_params { #define DWC3_HAS_OTG BIT(3) /* prototypes */ -void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode); +void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode, bool ignore_susphy); void dwc3_set_mode(struct dwc3 *dwc, u32 mode); u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type); @@ -1580,6 +1610,7 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc); void dwc3_event_buffers_cleanup(struct dwc3 *dwc); int dwc3_core_soft_reset(struct dwc3 *dwc); +void dwc3_enable_susphy(struct dwc3 *dwc, bool enable); #if IS_ENABLED(CONFIG_USB_DWC3_HOST) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) int dwc3_host_init(struct dwc3 *dwc); @@ -1652,7 +1683,6 @@ static inline void dwc3_otg_host_init(struct dwc3 *dwc) #if !IS_ENABLED(CONFIG_USB_DWC3_HOST) int dwc3_gadget_suspend(struct dwc3 *dwc); int dwc3_gadget_resume(struct dwc3 *dwc); -void dwc3_gadget_process_pending_events(struct dwc3 *dwc); #else static inline int dwc3_gadget_suspend(struct dwc3 *dwc) { @@ -1664,9 +1694,6 @@ static inline int dwc3_gadget_resume(struct dwc3 *dwc) return 0; } -static inline void dwc3_gadget_process_pending_events(struct dwc3 *dwc) -{ -} #endif /* !IS_ENABLED(CONFIG_USB_DWC3_HOST) */ #if IS_ENABLED(CONFIG_USB_DWC3_ULPI) diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c index 57ddd2e43022..7977860932b1 100644 --- a/drivers/usb/dwc3/drd.c +++ b/drivers/usb/dwc3/drd.c @@ -173,7 +173,7 @@ void dwc3_otg_init(struct dwc3 *dwc) * block "Initialize GCTL for OTG operation". */ /* GCTL.PrtCapDir=2'b11 */ - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG, true); /* GUSB2PHYCFG0.SusPHY=0 */ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; @@ -331,6 +331,7 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus) u32 reg; int id; unsigned long flags; + int i; if (dwc->dr_mode != USB_DR_MODE_OTG) return; @@ -386,9 +387,12 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus) } else { if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, true); - if (dwc->usb2_generic_phy) - phy_set_mode(dwc->usb2_generic_phy, - PHY_MODE_USB_HOST); + for (i = 0; i < dwc->num_usb2_ports; i++) { + if (dwc->usb2_generic_phy[i]) { + phy_set_mode(dwc->usb2_generic_phy[i], + PHY_MODE_USB_HOST); + } + } } break; case DWC3_OTG_ROLE_DEVICE: @@ -400,9 +404,8 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus) if (dwc->usb2_phy) otg_set_vbus(dwc->usb2_phy->otg, false); - if (dwc->usb2_generic_phy) - phy_set_mode(dwc->usb2_generic_phy, - PHY_MODE_USB_DEVICE); + if (dwc->usb2_generic_phy[0]) + phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE); ret = dwc3_gadget_init(dwc); if (ret) dev_err(dwc->dev, "failed to initialize peripheral\n"); @@ -553,7 +556,7 @@ int dwc3_drd_init(struct dwc3 *dwc) dwc3_drd_update(dwc); } else { - dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG); + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG, true); /* use OTG block to get ID event */ irq = dwc3_otg_get_irq(dwc); diff --git a/drivers/usb/dwc3/dwc3-am62.c b/drivers/usb/dwc3/dwc3-am62.c index fad151e78fd6..9db8f3ca493d 100644 --- a/drivers/usb/dwc3/dwc3-am62.c +++ b/drivers/usb/dwc3/dwc3-am62.c @@ -108,6 +108,9 @@ #define DWC3_AM62_AUTOSUSPEND_DELAY 100 +#define USBSS_DEBUG_CFG_OFF 0x0 +#define USBSS_DEBUG_CFG_DISABLED 0x7 + struct dwc3_am62 { struct device *dev; void __iomem *usbss; @@ -117,6 +120,7 @@ struct dwc3_am62 { unsigned int offset; unsigned int vbus_divider; u32 wakeup_stat; + void __iomem *phy_regs; }; static const int dwc3_ti_rate_table[] = { /* in KHZ */ @@ -149,11 +153,11 @@ static int phy_syscon_pll_refclk(struct dwc3_am62 *am62) { struct device *dev = am62->dev; struct device_node *node = dev->of_node; - struct of_phandle_args args; struct regmap *syscon; int ret; - syscon = syscon_regmap_lookup_by_phandle(node, "ti,syscon-phy-pll-refclk"); + syscon = syscon_regmap_lookup_by_phandle_args(node, "ti,syscon-phy-pll-refclk", + 1, &am62->offset); if (IS_ERR(syscon)) { dev_err(dev, "unable to get ti,syscon-phy-pll-refclk regmap\n"); return PTR_ERR(syscon); @@ -161,13 +165,6 @@ static int phy_syscon_pll_refclk(struct dwc3_am62 *am62) am62->syscon = syscon; - ret = of_parse_phandle_with_fixed_args(node, "ti,syscon-phy-pll-refclk", 1, - 0, &args); - if (ret) - return ret; - - am62->offset = args.args[0]; - /* Core voltage. PHY_CORE_VOLTAGE bit Recommended to be 0 always */ ret = regmap_update_bits(am62->syscon, am62->offset, PHY_CORE_VOLTAGE_MASK, 0); if (ret) { @@ -184,15 +181,47 @@ static int phy_syscon_pll_refclk(struct dwc3_am62 *am62) return 0; } +static int dwc3_ti_init(struct dwc3_am62 *am62) +{ + int ret; + u32 reg; + + /* Read the syscon property and set the rate code */ + ret = phy_syscon_pll_refclk(am62); + if (ret) + return ret; + + /* Workaround Errata i2409 */ + if (am62->phy_regs) { + reg = readl(am62->phy_regs + USB_PHY_PLL_REG12); + reg |= USB_PHY_PLL_LDO_REF_EN | USB_PHY_PLL_LDO_REF_EN_EN; + writel(reg, am62->phy_regs + USB_PHY_PLL_REG12); + } + + /* VBUS divider select */ + reg = dwc3_ti_readl(am62, USBSS_PHY_CONFIG); + if (am62->vbus_divider) + reg |= 1 << USBSS_PHY_VBUS_SEL_SHIFT; + + dwc3_ti_writel(am62, USBSS_PHY_CONFIG, reg); + + clk_prepare_enable(am62->usb2_refclk); + + /* Set mode valid bit to indicate role is valid */ + reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL); + reg |= USBSS_MODE_VALID; + dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg); + + return 0; +} + static int dwc3_ti_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *node = pdev->dev.of_node; struct dwc3_am62 *am62; unsigned long rate; - void __iomem *phy; int i, ret; - u32 reg; am62 = devm_kzalloc(dev, sizeof(*am62), GFP_KERNEL); if (!am62) @@ -228,29 +257,17 @@ static int dwc3_ti_probe(struct platform_device *pdev) am62->rate_code = i; - /* Read the syscon property and set the rate code */ - ret = phy_syscon_pll_refclk(am62); - if (ret) - return ret; - - /* Workaround Errata i2409 */ - phy = devm_platform_ioremap_resource(pdev, 1); - if (IS_ERR(phy)) { + am62->phy_regs = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(am62->phy_regs)) { dev_err(dev, "can't map PHY IOMEM resource. Won't apply i2409 fix.\n"); - phy = NULL; - } else { - reg = readl(phy + USB_PHY_PLL_REG12); - reg |= USB_PHY_PLL_LDO_REF_EN | USB_PHY_PLL_LDO_REF_EN_EN; - writel(reg, phy + USB_PHY_PLL_REG12); + am62->phy_regs = NULL; } - /* VBUS divider select */ am62->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider"); - reg = dwc3_ti_readl(am62, USBSS_PHY_CONFIG); - if (am62->vbus_divider) - reg |= 1 << USBSS_PHY_VBUS_SEL_SHIFT; - dwc3_ti_writel(am62, USBSS_PHY_CONFIG, reg); + ret = dwc3_ti_init(am62); + if (ret) + return ret; pm_runtime_set_active(dev); pm_runtime_enable(dev); @@ -258,7 +275,6 @@ static int dwc3_ti_probe(struct platform_device *pdev) * Don't ignore its dependencies with its children */ pm_suspend_ignore_children(dev, false); - clk_prepare_enable(am62->usb2_refclk); pm_runtime_get_noresume(dev); ret = of_platform_populate(node, NULL, NULL, dev); @@ -267,11 +283,6 @@ static int dwc3_ti_probe(struct platform_device *pdev) goto err_pm_disable; } - /* Set mode valid bit to indicate role is valid */ - reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL); - reg |= USBSS_MODE_VALID; - dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg); - /* Device has capability to wakeup system from sleep */ device_set_wakeup_capable(dev, true); ret = device_wakeup_enable(dev); @@ -309,6 +320,7 @@ static void dwc3_ti_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); + pm_runtime_dont_use_autosuspend(dev); pm_runtime_set_suspended(dev); } @@ -338,6 +350,9 @@ static int dwc3_ti_suspend_common(struct device *dev) dwc3_ti_writel(am62, USBSS_WAKEUP_STAT, USBSS_WAKEUP_STAT_CLR); } + /* just to track if module resets on suspend */ + dwc3_ti_writel(am62, USBSS_DEBUG_CFG, USBSS_DEBUG_CFG_DISABLED); + clk_disable_unprepare(am62->usb2_refclk); return 0; @@ -348,7 +363,14 @@ static int dwc3_ti_resume_common(struct device *dev) struct dwc3_am62 *am62 = dev_get_drvdata(dev); u32 reg; - clk_prepare_enable(am62->usb2_refclk); + reg = dwc3_ti_readl(am62, USBSS_DEBUG_CFG); + if (reg != USBSS_DEBUG_CFG_DISABLED) { + /* lost power/context */ + dwc3_ti_init(am62); + } else { + dwc3_ti_writel(am62, USBSS_DEBUG_CFG, USBSS_DEBUG_CFG_OFF); + clk_prepare_enable(am62->usb2_refclk); + } if (device_may_wakeup(dev)) { /* Clear wakeup config enable bits */ @@ -377,7 +399,7 @@ MODULE_DEVICE_TABLE(of, dwc3_ti_of_match); static struct platform_driver dwc3_ti_driver = { .probe = dwc3_ti_probe, - .remove_new = dwc3_ti_remove, + .remove = dwc3_ti_remove, .driver = { .name = "dwc3-am62", .pm = DEV_PM_OPS, diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index 5d365ca51771..de686b9e6404 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -163,12 +163,24 @@ static const struct dwc3_exynos_driverdata exynos7_drvdata = { .suspend_clk_idx = 1, }; +static const struct dwc3_exynos_driverdata exynos7870_drvdata = { + .clk_names = { "bus_early", "ref", "ctrl" }, + .num_clks = 3, + .suspend_clk_idx = -1, +}; + static const struct dwc3_exynos_driverdata exynos850_drvdata = { .clk_names = { "bus_early", "ref" }, .num_clks = 2, .suspend_clk_idx = -1, }; +static const struct dwc3_exynos_driverdata gs101_drvdata = { + .clk_names = { "bus_early", "susp_clk", "link_aclk", "link_pclk" }, + .num_clks = 4, + .suspend_clk_idx = 1, +}; + static const struct of_device_id exynos_dwc3_match[] = { { .compatible = "samsung,exynos5250-dwusb3", @@ -180,14 +192,19 @@ static const struct of_device_id exynos_dwc3_match[] = { .compatible = "samsung,exynos7-dwusb3", .data = &exynos7_drvdata, }, { + .compatible = "samsung,exynos7870-dwusb3", + .data = &exynos7870_drvdata, + }, { .compatible = "samsung,exynos850-dwusb3", .data = &exynos850_drvdata, }, { + .compatible = "google,gs101-dwusb3", + .data = &gs101_drvdata, + }, { } }; MODULE_DEVICE_TABLE(of, exynos_dwc3_match); -#ifdef CONFIG_PM_SLEEP static int dwc3_exynos_suspend(struct device *dev) { struct dwc3_exynos *exynos = dev_get_drvdata(dev); @@ -230,22 +247,16 @@ static int dwc3_exynos_resume(struct device *dev) return 0; } -static const struct dev_pm_ops dwc3_exynos_dev_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(dwc3_exynos_suspend, dwc3_exynos_resume) -}; - -#define DEV_PM_OPS (&dwc3_exynos_dev_pm_ops) -#else -#define DEV_PM_OPS NULL -#endif /* CONFIG_PM_SLEEP */ +static DEFINE_SIMPLE_DEV_PM_OPS(dwc3_exynos_dev_pm_ops, + dwc3_exynos_suspend, dwc3_exynos_resume); static struct platform_driver dwc3_exynos_driver = { .probe = dwc3_exynos_probe, - .remove_new = dwc3_exynos_remove, + .remove = dwc3_exynos_remove, .driver = { .name = "exynos-dwc3", .of_match_table = exynos_dwc3_match, - .pm = DEV_PM_OPS, + .pm = pm_sleep_ptr(&dwc3_exynos_dev_pm_ops), }, }; diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index 8ee448068503..3edc5aca76f9 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -5,6 +5,7 @@ * Copyright (c) 2020 NXP. */ +#include <linux/cleanup.h> #include <linux/clk.h> #include <linux/interrupt.h> #include <linux/io.h> @@ -96,7 +97,8 @@ static void imx8mp_configure_glue(struct dwc3_imx8mp *dwc3_imx) writel(value, dwc3_imx->glue_base + USB_CTRL1); } -static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx) +static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx, + pm_message_t msg) { struct dwc3 *dwc3 = platform_get_drvdata(dwc3_imx->dwc3); u32 val; @@ -106,12 +108,14 @@ static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx) val = readl(dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL); - if ((dwc3->current_dr_role == DWC3_GCTL_PRTCAP_HOST) && dwc3->xhci) - val |= USB_WAKEUP_EN | USB_WAKEUP_SS_CONN | - USB_WAKEUP_U3_EN | USB_WAKEUP_DPDM_EN; - else if (dwc3->current_dr_role == DWC3_GCTL_PRTCAP_DEVICE) + if ((dwc3->current_dr_role == DWC3_GCTL_PRTCAP_HOST) && dwc3->xhci) { + val |= USB_WAKEUP_EN | USB_WAKEUP_DPDM_EN; + if (PMSG_IS_AUTO(msg)) + val |= USB_WAKEUP_SS_CONN | USB_WAKEUP_U3_EN; + } else { val |= USB_WAKEUP_EN | USB_WAKEUP_VBUS_EN | USB_WAKEUP_VBUS_SRC_SESS_VAL; + } writel(val, dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL); } @@ -125,6 +129,16 @@ static void dwc3_imx8mp_wakeup_disable(struct dwc3_imx8mp *dwc3_imx) writel(val, dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL); } +static const struct property_entry dwc3_imx8mp_properties[] = { + PROPERTY_ENTRY_BOOL("xhci-missing-cas-quirk"), + PROPERTY_ENTRY_BOOL("xhci-skip-phy-init-quirk"), + {}, +}; + +static const struct software_node dwc3_imx8mp_swnode = { + .properties = dwc3_imx8mp_properties, +}; + static irqreturn_t dwc3_imx8mp_interrupt(int irq, void *_dwc3_imx) { struct dwc3_imx8mp *dwc3_imx = _dwc3_imx; @@ -147,7 +161,7 @@ static irqreturn_t dwc3_imx8mp_interrupt(int irq, void *_dwc3_imx) static int dwc3_imx8mp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *dwc3_np, *node = dev->of_node; + struct device_node *node = dev->of_node; struct dwc3_imx8mp *dwc3_imx; struct resource *res; int err, irq; @@ -178,39 +192,26 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) return PTR_ERR(dwc3_imx->glue_base); } - dwc3_imx->hsio_clk = devm_clk_get(dev, "hsio"); - if (IS_ERR(dwc3_imx->hsio_clk)) { - err = PTR_ERR(dwc3_imx->hsio_clk); - dev_err(dev, "Failed to get hsio clk, err=%d\n", err); - return err; - } + dwc3_imx->hsio_clk = devm_clk_get_enabled(dev, "hsio"); + if (IS_ERR(dwc3_imx->hsio_clk)) + return dev_err_probe(dev, PTR_ERR(dwc3_imx->hsio_clk), + "Failed to get hsio clk\n"); - err = clk_prepare_enable(dwc3_imx->hsio_clk); - if (err) { - dev_err(dev, "Failed to enable hsio clk, err=%d\n", err); - return err; - } - - dwc3_imx->suspend_clk = devm_clk_get(dev, "suspend"); - if (IS_ERR(dwc3_imx->suspend_clk)) { - err = PTR_ERR(dwc3_imx->suspend_clk); - dev_err(dev, "Failed to get suspend clk, err=%d\n", err); - goto disable_hsio_clk; - } - - err = clk_prepare_enable(dwc3_imx->suspend_clk); - if (err) { - dev_err(dev, "Failed to enable suspend clk, err=%d\n", err); - goto disable_hsio_clk; - } + dwc3_imx->suspend_clk = devm_clk_get_enabled(dev, "suspend"); + if (IS_ERR(dwc3_imx->suspend_clk)) + return dev_err_probe(dev, PTR_ERR(dwc3_imx->suspend_clk), + "Failed to get suspend clk\n"); irq = platform_get_irq(pdev, 0); - if (irq < 0) { - err = irq; - goto disable_clks; - } + if (irq < 0) + return irq; dwc3_imx->irq = irq; + struct device_node *dwc3_np __free(device_node) = of_get_compatible_child(node, + "snps,dwc3"); + if (!dwc3_np) + return dev_err_probe(dev, -ENODEV, "failed to find dwc3 core child\n"); + imx8mp_configure_glue(dwc3_imx); pm_runtime_set_active(dev); @@ -219,17 +220,17 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) if (err < 0) goto disable_rpm; - dwc3_np = of_get_compatible_child(node, "snps,dwc3"); - if (!dwc3_np) { + err = device_add_software_node(dev, &dwc3_imx8mp_swnode); + if (err) { err = -ENODEV; - dev_err(dev, "failed to find dwc3 core child\n"); + dev_err(dev, "failed to add software node\n"); goto disable_rpm; } err = of_platform_populate(node, NULL, NULL, dev); if (err) { dev_err(&pdev->dev, "failed to create dwc3 core\n"); - goto err_node_put; + goto remove_swnode; } dwc3_imx->dwc3 = of_find_device_by_node(dwc3_np); @@ -238,7 +239,6 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) err = -ENODEV; goto depopulate; } - of_node_put(dwc3_np); err = devm_request_threaded_irq(dev, irq, NULL, dwc3_imx8mp_interrupt, IRQF_ONESHOT, dev_name(dev), dwc3_imx); @@ -254,51 +254,42 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) depopulate: of_platform_depopulate(dev); -err_node_put: - of_node_put(dwc3_np); +remove_swnode: + device_remove_software_node(dev); disable_rpm: pm_runtime_disable(dev); pm_runtime_put_noidle(dev); -disable_clks: - clk_disable_unprepare(dwc3_imx->suspend_clk); -disable_hsio_clk: - clk_disable_unprepare(dwc3_imx->hsio_clk); return err; } static void dwc3_imx8mp_remove(struct platform_device *pdev) { - struct dwc3_imx8mp *dwc3_imx = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; pm_runtime_get_sync(dev); of_platform_depopulate(dev); - - clk_disable_unprepare(dwc3_imx->suspend_clk); - clk_disable_unprepare(dwc3_imx->hsio_clk); + device_remove_software_node(dev); pm_runtime_disable(dev); pm_runtime_put_noidle(dev); } -static int __maybe_unused dwc3_imx8mp_suspend(struct dwc3_imx8mp *dwc3_imx, - pm_message_t msg) +static int dwc3_imx8mp_suspend(struct dwc3_imx8mp *dwc3_imx, pm_message_t msg) { if (dwc3_imx->pm_suspended) return 0; /* Wakeup enable */ if (PMSG_IS_AUTO(msg) || device_may_wakeup(dwc3_imx->dev)) - dwc3_imx8mp_wakeup_enable(dwc3_imx); + dwc3_imx8mp_wakeup_enable(dwc3_imx, msg); dwc3_imx->pm_suspended = true; return 0; } -static int __maybe_unused dwc3_imx8mp_resume(struct dwc3_imx8mp *dwc3_imx, - pm_message_t msg) +static int dwc3_imx8mp_resume(struct dwc3_imx8mp *dwc3_imx, pm_message_t msg) { struct dwc3 *dwc = platform_get_drvdata(dwc3_imx->dwc3); int ret = 0; @@ -331,7 +322,7 @@ static int __maybe_unused dwc3_imx8mp_resume(struct dwc3_imx8mp *dwc3_imx, return ret; } -static int __maybe_unused dwc3_imx8mp_pm_suspend(struct device *dev) +static int dwc3_imx8mp_pm_suspend(struct device *dev) { struct dwc3_imx8mp *dwc3_imx = dev_get_drvdata(dev); int ret; @@ -349,7 +340,7 @@ static int __maybe_unused dwc3_imx8mp_pm_suspend(struct device *dev) return ret; } -static int __maybe_unused dwc3_imx8mp_pm_resume(struct device *dev) +static int dwc3_imx8mp_pm_resume(struct device *dev) { struct dwc3_imx8mp *dwc3_imx = dev_get_drvdata(dev); int ret; @@ -379,7 +370,7 @@ static int __maybe_unused dwc3_imx8mp_pm_resume(struct device *dev) return ret; } -static int __maybe_unused dwc3_imx8mp_runtime_suspend(struct device *dev) +static int dwc3_imx8mp_runtime_suspend(struct device *dev) { struct dwc3_imx8mp *dwc3_imx = dev_get_drvdata(dev); @@ -388,7 +379,7 @@ static int __maybe_unused dwc3_imx8mp_runtime_suspend(struct device *dev) return dwc3_imx8mp_suspend(dwc3_imx, PMSG_AUTO_SUSPEND); } -static int __maybe_unused dwc3_imx8mp_runtime_resume(struct device *dev) +static int dwc3_imx8mp_runtime_resume(struct device *dev) { struct dwc3_imx8mp *dwc3_imx = dev_get_drvdata(dev); @@ -398,9 +389,9 @@ static int __maybe_unused dwc3_imx8mp_runtime_resume(struct device *dev) } static const struct dev_pm_ops dwc3_imx8mp_dev_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(dwc3_imx8mp_pm_suspend, dwc3_imx8mp_pm_resume) - SET_RUNTIME_PM_OPS(dwc3_imx8mp_runtime_suspend, - dwc3_imx8mp_runtime_resume, NULL) + SYSTEM_SLEEP_PM_OPS(dwc3_imx8mp_pm_suspend, dwc3_imx8mp_pm_resume) + RUNTIME_PM_OPS(dwc3_imx8mp_runtime_suspend, dwc3_imx8mp_runtime_resume, + NULL) }; static const struct of_device_id dwc3_imx8mp_of_match[] = { @@ -411,10 +402,10 @@ MODULE_DEVICE_TABLE(of, dwc3_imx8mp_of_match); static struct platform_driver dwc3_imx8mp_driver = { .probe = dwc3_imx8mp_probe, - .remove_new = dwc3_imx8mp_remove, + .remove = dwc3_imx8mp_remove, .driver = { .name = "imx8mp-dwc3", - .pm = &dwc3_imx8mp_dev_pm_ops, + .pm = pm_ptr(&dwc3_imx8mp_dev_pm_ops), .of_match_table = dwc3_imx8mp_of_match, }, }; diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c index 8899348b6276..7ee1610162b9 100644 --- a/drivers/usb/dwc3/dwc3-keystone.c +++ b/drivers/usb/dwc3/dwc3-keystone.c @@ -208,7 +208,7 @@ MODULE_DEVICE_TABLE(of, kdwc3_of_match); static struct platform_driver kdwc3_driver = { .probe = kdwc3_probe, - .remove_new = kdwc3_remove, + .remove = kdwc3_remove, .driver = { .name = "keystone-dwc3", .of_match_table = kdwc3_of_match, diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c index 2c07c038b584..7d80bf7b18b0 100644 --- a/drivers/usb/dwc3/dwc3-meson-g12a.c +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c @@ -968,7 +968,7 @@ MODULE_DEVICE_TABLE(of, dwc3_meson_g12a_match); static struct platform_driver dwc3_meson_g12a_driver = { .probe = dwc3_meson_g12a_probe, - .remove_new = dwc3_meson_g12a_remove, + .remove = dwc3_meson_g12a_remove, .driver = { .name = "dwc3-meson-g12a", .of_match_table = dwc3_meson_g12a_match, diff --git a/drivers/usb/dwc3/dwc3-octeon.c b/drivers/usb/dwc3/dwc3-octeon.c index 6010135e1acc..42bfc14ae0c4 100644 --- a/drivers/usb/dwc3/dwc3-octeon.c +++ b/drivers/usb/dwc3/dwc3-octeon.c @@ -419,7 +419,7 @@ static int dwc3_octeon_probe(struct platform_device *pdev) int ref_clk_sel, ref_clk_fsel, mpll_mul; int power_active_low, power_gpio; int err, len; - u32 clock_rate; + u32 clock_rate, gpio_pwr[3]; if (of_property_read_u32(node, "refclk-frequency", &clock_rate)) { dev_err(dev, "No UCTL \"refclk-frequency\"\n"); @@ -476,21 +476,10 @@ static int dwc3_octeon_probe(struct platform_device *pdev) power_gpio = DWC3_GPIO_POWER_NONE; power_active_low = 0; - if (of_find_property(node, "power", &len)) { - u32 gpio_pwr[3]; - - switch (len) { - case 8: - of_property_read_u32_array(node, "power", gpio_pwr, 2); - break; - case 12: - of_property_read_u32_array(node, "power", gpio_pwr, 3); + len = of_property_read_variable_u32_array(node, "power", gpio_pwr, 2, 3); + if (len > 0) { + if (len == 3) power_active_low = gpio_pwr[2] & 0x01; - break; - default: - dev_err(dev, "invalid power configuration\n"); - return -EINVAL; - } power_gpio = gpio_pwr[1]; } @@ -531,7 +520,7 @@ MODULE_DEVICE_TABLE(of, dwc3_octeon_of_match); static struct platform_driver dwc3_octeon_driver = { .probe = dwc3_octeon_probe, - .remove_new = dwc3_octeon_remove, + .remove = dwc3_octeon_remove, .driver = { .name = "dwc3-octeon", .of_match_table = dwc3_octeon_of_match, diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index be7be00ecb34..a4954a21be93 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -180,7 +180,7 @@ MODULE_DEVICE_TABLE(of, of_dwc3_simple_match); static struct platform_driver dwc3_of_simple_driver = { .probe = dwc3_of_simple_probe, - .remove_new = dwc3_of_simple_remove, + .remove = dwc3_of_simple_remove, .shutdown = dwc3_of_simple_shutdown, .driver = { .name = "dwc3-of-simple", diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index d5c77db4daa9..fe74d11bb629 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -416,7 +416,7 @@ static int dwc3_omap_extcon_register(struct dwc3_omap *omap) struct device_node *node = omap->dev->of_node; struct extcon_dev *edev; - if (of_property_read_bool(node, "extcon")) { + if (of_property_present(node, "extcon")) { edev = extcon_get_edev_by_phandle(omap->dev, 0); if (IS_ERR(edev)) { dev_vdbg(omap->dev, "couldn't get extcon device\n"); @@ -457,7 +457,7 @@ static int dwc3_omap_probe(struct platform_device *pdev) struct dwc3_omap *omap; struct device *dev = &pdev->dev; - struct regulator *vbus_reg = NULL; + struct regulator *vbus_reg; int ret; int irq; @@ -483,12 +483,11 @@ static int dwc3_omap_probe(struct platform_device *pdev) if (IS_ERR(base)) return PTR_ERR(base); - if (of_property_read_bool(node, "vbus-supply")) { - vbus_reg = devm_regulator_get(dev, "vbus"); - if (IS_ERR(vbus_reg)) { - dev_err(dev, "vbus init failed\n"); - return PTR_ERR(vbus_reg); - } + vbus_reg = devm_regulator_get_optional(dev, "vbus"); + if (IS_ERR(vbus_reg)) { + if (PTR_ERR(vbus_reg) != -ENODEV) + return dev_err_probe(dev, PTR_ERR(vbus_reg), "vbus init failed\n"); + vbus_reg = NULL; } omap->dev = dev; @@ -522,11 +521,13 @@ static int dwc3_omap_probe(struct platform_device *pdev) if (ret) { dev_err(dev, "failed to request IRQ #%d --> %d\n", omap->irq, ret); - goto err1; + goto err2; } dwc3_omap_enable_irqs(omap); return 0; +err2: + of_platform_depopulate(dev); err1: pm_runtime_put_sync(dev); pm_runtime_disable(dev); @@ -609,7 +610,7 @@ static const struct dev_pm_ops dwc3_omap_dev_pm_ops = { static struct platform_driver dwc3_omap_driver = { .probe = dwc3_omap_probe, - .remove_new = dwc3_omap_remove, + .remove = dwc3_omap_remove, .driver = { .name = "omap-dwc3", .of_match_table = of_dwc3_match, diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 497deed38c0c..54a4ee2b90b7 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -8,6 +8,7 @@ * Sebastian Andrzej Siewior <bigeasy@linutronix.de> */ +#include <linux/dmi.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> @@ -53,6 +54,10 @@ #define PCI_DEVICE_ID_INTEL_MTL 0x7e7e #define PCI_DEVICE_ID_INTEL_ARLH_PCH 0x777e #define PCI_DEVICE_ID_INTEL_TGL 0x9a15 +#define PCI_DEVICE_ID_INTEL_PTLH 0xe332 +#define PCI_DEVICE_ID_INTEL_PTLH_PCH 0xe37e +#define PCI_DEVICE_ID_INTEL_PTLU 0xe432 +#define PCI_DEVICE_ID_INTEL_PTLU_PCH 0xe47e #define PCI_DEVICE_ID_AMD_MR 0x163a #define PCI_INTEL_BXT_DSM_GUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511" @@ -143,11 +148,21 @@ static const struct property_entry dwc3_pci_intel_byt_properties[] = { {} }; +/* + * Intel Merrifield SoC uses these endpoints for tracing and they cannot + * be re-allocated if being used because the side band flow control signals + * are hard wired to certain endpoints: + * - 1 High BW Bulk IN (IN#1) (RTIT) + * - 1 1KB BW Bulk IN (IN#8) + 1 1KB BW Bulk OUT (Run Control) (OUT#8) + */ +static const u8 dwc3_pci_mrfld_reserved_endpoints[] = { 3, 16, 17 }; + static const struct property_entry dwc3_pci_mrfld_properties[] = { PROPERTY_ENTRY_STRING("dr_mode", "otg"), PROPERTY_ENTRY_STRING("linux,extcon-name", "mrfld_bcove_pwrsrc"), PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"), PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"), + PROPERTY_ENTRY_U8_ARRAY("snps,reserved-endpoints", dwc3_pci_mrfld_reserved_endpoints), PROPERTY_ENTRY_BOOL("snps,usb2-gadget-lpm-disable"), PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), {} @@ -220,6 +235,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc, if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) { struct gpio_desc *gpio; + const char *bios_ver; int ret; /* On BYT the FW does not always enable the refclock */ @@ -277,8 +293,12 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc, * detection. These can be identified by them _not_ * using the standard ACPI battery and ac drivers. */ + bios_ver = dmi_get_system_info(DMI_BIOS_VERSION); if (acpi_dev_present("INT33FD", "1", 2) && - acpi_quirk_skip_acpi_ac_and_battery()) { + acpi_quirk_skip_acpi_ac_and_battery() && + /* Lenovo Yoga Tablet 2 Pro 1380 uses LC824206XA instead */ + !(bios_ver && + strstarts(bios_ver, "BLADE_21.X64.0005.R00.1504101516"))) { dev_info(&pdev->dev, "Using TUSB1211 phy for charger detection\n"); swnode = &dwc3_pci_intel_phy_charger_detect_swnode; } @@ -424,6 +444,10 @@ static const struct pci_device_id dwc3_pci_id_table[] = { { PCI_DEVICE_DATA(INTEL, MTLS, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(INTEL, ARLH_PCH, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(INTEL, TGL, &dwc3_pci_intel_swnode) }, + { PCI_DEVICE_DATA(INTEL, PTLH, &dwc3_pci_intel_swnode) }, + { PCI_DEVICE_DATA(INTEL, PTLH_PCH, &dwc3_pci_intel_swnode) }, + { PCI_DEVICE_DATA(INTEL, PTLU, &dwc3_pci_intel_swnode) }, + { PCI_DEVICE_DATA(INTEL, PTLU_PCH, &dwc3_pci_intel_swnode) }, { PCI_DEVICE_DATA(AMD, NL_USB, &dwc3_pci_amd_swnode) }, { PCI_DEVICE_DATA(AMD, MR, &dwc3_pci_amd_mr_swnode) }, diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index f6b2fab49d5e..58683bb672e9 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -4,6 +4,7 @@ * Inspired by dwc3-of-simple.c */ +#include <linux/cleanup.h> #include <linux/io.h> #include <linux/of.h> #include <linux/clk.h> @@ -36,7 +37,6 @@ #define PIPE3_PHYSTATUS_SW BIT(3) #define PIPE_UTMI_CLK_DIS BIT(8) -#define PWR_EVNT_IRQ_STAT_REG 0x58 #define PWR_EVNT_LPM_IN_L2_MASK BIT(4) #define PWR_EVNT_LPM_OUT_L2_MASK BIT(5) @@ -52,6 +52,24 @@ #define APPS_USB_AVG_BW 0 #define APPS_USB_PEAK_BW MBps_to_icc(40) +/* Qualcomm SoCs with multiport support has up to 4 ports */ +#define DWC3_QCOM_MAX_PORTS 4 + +static const u32 pwr_evnt_irq_stat_reg[DWC3_QCOM_MAX_PORTS] = { + 0x58, + 0x1dc, + 0x228, + 0x238, +}; + +struct dwc3_qcom_port { + int qusb2_phy_irq; + int dp_hs_phy_irq; + int dm_hs_phy_irq; + int ss_phy_irq; + enum usb_device_speed usb2_speed; +}; + struct dwc3_qcom { struct device *dev; void __iomem *qscratch_base; @@ -59,12 +77,8 @@ struct dwc3_qcom { struct clk **clks; int num_clocks; struct reset_control *resets; - - int qusb2_phy_irq; - int dp_hs_phy_irq; - int dm_hs_phy_irq; - int ss_phy_irq; - enum usb_device_speed usb2_speed; + struct dwc3_qcom_port ports[DWC3_QCOM_MAX_PORTS]; + u8 num_ports; struct extcon_dev *edev; struct extcon_dev *host_edev; @@ -147,7 +161,7 @@ static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom) struct extcon_dev *host_edev; int ret; - if (!of_property_read_bool(dev->of_node, "extcon")) + if (!of_property_present(dev->of_node, "extcon")) return 0; qcom->edev = extcon_get_edev_by_phandle(dev, 0); @@ -303,7 +317,7 @@ static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom) return dwc->xhci; } -static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom) +static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom, int port_index) { struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); struct usb_device *udev; @@ -314,14 +328,8 @@ static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom) */ hcd = platform_get_drvdata(dwc->xhci); - /* - * It is possible to query the speed of all children of - * USB2.0 root hub via usb_hub_for_each_child(). DWC3 code - * currently supports only 1 port per controller. So - * this is sufficient. - */ #ifdef CONFIG_USB - udev = usb_hub_find_child(hcd->self.root_hub, 1); + udev = usb_hub_find_child(hcd->self.root_hub, port_index + 1); #else udev = NULL; #endif @@ -352,26 +360,26 @@ static void dwc3_qcom_disable_wakeup_irq(int irq) disable_irq_nosync(irq); } -static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) +static void dwc3_qcom_disable_port_interrupts(struct dwc3_qcom_port *port) { - dwc3_qcom_disable_wakeup_irq(qcom->qusb2_phy_irq); + dwc3_qcom_disable_wakeup_irq(port->qusb2_phy_irq); - if (qcom->usb2_speed == USB_SPEED_LOW) { - dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq); - } else if ((qcom->usb2_speed == USB_SPEED_HIGH) || - (qcom->usb2_speed == USB_SPEED_FULL)) { - dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq); + if (port->usb2_speed == USB_SPEED_LOW) { + dwc3_qcom_disable_wakeup_irq(port->dm_hs_phy_irq); + } else if ((port->usb2_speed == USB_SPEED_HIGH) || + (port->usb2_speed == USB_SPEED_FULL)) { + dwc3_qcom_disable_wakeup_irq(port->dp_hs_phy_irq); } else { - dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq); - dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq); + dwc3_qcom_disable_wakeup_irq(port->dp_hs_phy_irq); + dwc3_qcom_disable_wakeup_irq(port->dm_hs_phy_irq); } - dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq); + dwc3_qcom_disable_wakeup_irq(port->ss_phy_irq); } -static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) +static void dwc3_qcom_enable_port_interrupts(struct dwc3_qcom_port *port) { - dwc3_qcom_enable_wakeup_irq(qcom->qusb2_phy_irq, 0); + dwc3_qcom_enable_wakeup_irq(port->qusb2_phy_irq, 0); /* * Configure DP/DM line interrupts based on the USB2 device attached to @@ -382,21 +390,37 @@ static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) * DP and DM lines as rising edge to detect HS/HS/LS device connect scenario. */ - if (qcom->usb2_speed == USB_SPEED_LOW) { - dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq, - IRQ_TYPE_EDGE_FALLING); - } else if ((qcom->usb2_speed == USB_SPEED_HIGH) || - (qcom->usb2_speed == USB_SPEED_FULL)) { - dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq, - IRQ_TYPE_EDGE_FALLING); + if (port->usb2_speed == USB_SPEED_LOW) { + dwc3_qcom_enable_wakeup_irq(port->dm_hs_phy_irq, + IRQ_TYPE_EDGE_FALLING); + } else if ((port->usb2_speed == USB_SPEED_HIGH) || + (port->usb2_speed == USB_SPEED_FULL)) { + dwc3_qcom_enable_wakeup_irq(port->dp_hs_phy_irq, + IRQ_TYPE_EDGE_FALLING); } else { - dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq, - IRQ_TYPE_EDGE_RISING); - dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq, - IRQ_TYPE_EDGE_RISING); + dwc3_qcom_enable_wakeup_irq(port->dp_hs_phy_irq, + IRQ_TYPE_EDGE_RISING); + dwc3_qcom_enable_wakeup_irq(port->dm_hs_phy_irq, + IRQ_TYPE_EDGE_RISING); } - dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq, 0); + dwc3_qcom_enable_wakeup_irq(port->ss_phy_irq, 0); +} + +static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) +{ + int i; + + for (i = 0; i < qcom->num_ports; i++) + dwc3_qcom_disable_port_interrupts(&qcom->ports[i]); +} + +static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) +{ + int i; + + for (i = 0; i < qcom->num_ports; i++) + dwc3_qcom_enable_port_interrupts(&qcom->ports[i]); } static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup) @@ -407,9 +431,11 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup) if (qcom->is_suspended) return 0; - val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG); - if (!(val & PWR_EVNT_LPM_IN_L2_MASK)) - dev_err(qcom->dev, "HS-PHY not in L2\n"); + for (i = 0; i < qcom->num_ports; i++) { + val = readl(qcom->qscratch_base + pwr_evnt_irq_stat_reg[i]); + if (!(val & PWR_EVNT_LPM_IN_L2_MASK)) + dev_err(qcom->dev, "port-%d HS-PHY not in L2\n", i + 1); + } for (i = qcom->num_clocks - 1; i >= 0; i--) clk_disable_unprepare(qcom->clks[i]); @@ -423,7 +449,8 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup) * freezable workqueue. */ if (dwc3_qcom_is_host(qcom) && wakeup) { - qcom->usb2_speed = dwc3_qcom_read_usb2_speed(qcom); + for (i = 0; i < qcom->num_ports; i++) + qcom->ports[i].usb2_speed = dwc3_qcom_read_usb2_speed(qcom, i); dwc3_qcom_enable_interrupts(qcom); } @@ -457,8 +484,11 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup) dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret); /* Clear existing events from PHY related to L2 in/out */ - dwc3_qcom_setbits(qcom->qscratch_base, PWR_EVNT_IRQ_STAT_REG, - PWR_EVNT_LPM_IN_L2_MASK | PWR_EVNT_LPM_OUT_L2_MASK); + for (i = 0; i < qcom->num_ports; i++) { + dwc3_qcom_setbits(qcom->qscratch_base, + pwr_evnt_irq_stat_reg[i], + PWR_EVNT_LPM_IN_L2_MASK | PWR_EVNT_LPM_OUT_L2_MASK); + } qcom->is_suspended = false; @@ -501,63 +531,123 @@ static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom) PIPE_UTMI_CLK_DIS); } -static int dwc3_qcom_setup_irq(struct platform_device *pdev) +static int dwc3_qcom_request_irq(struct dwc3_qcom *qcom, int irq, + const char *name) +{ + int ret; + + /* Keep wakeup interrupts disabled until suspend */ + ret = devm_request_threaded_irq(qcom->dev, irq, NULL, + qcom_dwc3_resume_irq, + IRQF_ONESHOT | IRQF_NO_AUTOEN, + name, qcom); + if (ret) + dev_err(qcom->dev, "failed to request irq %s: %d\n", name, ret); + + return ret; +} + +static int dwc3_qcom_setup_port_irq(struct platform_device *pdev, int port_index, bool is_multiport) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); + const char *irq_name; int irq; int ret; - irq = platform_get_irq_byname_optional(pdev, "qusb2_phy"); + if (is_multiport) + irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dp_hs_phy_%d", port_index + 1); + else + irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dp_hs_phy_irq"); + if (!irq_name) + return -ENOMEM; + + irq = platform_get_irq_byname_optional(pdev, irq_name); if (irq > 0) { - /* Keep wakeup interrupts disabled until suspend */ - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, - qcom_dwc3_resume_irq, - IRQF_ONESHOT | IRQF_NO_AUTOEN, - "qcom_dwc3 QUSB2", qcom); - if (ret) { - dev_err(qcom->dev, "qusb2_phy_irq failed: %d\n", ret); + ret = dwc3_qcom_request_irq(qcom, irq, irq_name); + if (ret) return ret; - } - qcom->qusb2_phy_irq = irq; + qcom->ports[port_index].dp_hs_phy_irq = irq; } - irq = platform_get_irq_byname_optional(pdev, "dp_hs_phy_irq"); + if (is_multiport) + irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dm_hs_phy_%d", port_index + 1); + else + irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dm_hs_phy_irq"); + if (!irq_name) + return -ENOMEM; + + irq = platform_get_irq_byname_optional(pdev, irq_name); if (irq > 0) { - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, - qcom_dwc3_resume_irq, - IRQF_ONESHOT | IRQF_NO_AUTOEN, - "qcom_dwc3 DP_HS", qcom); - if (ret) { - dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret); + ret = dwc3_qcom_request_irq(qcom, irq, irq_name); + if (ret) return ret; - } - qcom->dp_hs_phy_irq = irq; + qcom->ports[port_index].dm_hs_phy_irq = irq; } - irq = platform_get_irq_byname_optional(pdev, "dm_hs_phy_irq"); + if (is_multiport) + irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "ss_phy_%d", port_index + 1); + else + irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "ss_phy_irq"); + if (!irq_name) + return -ENOMEM; + + irq = platform_get_irq_byname_optional(pdev, irq_name); if (irq > 0) { - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, - qcom_dwc3_resume_irq, - IRQF_ONESHOT | IRQF_NO_AUTOEN, - "qcom_dwc3 DM_HS", qcom); - if (ret) { - dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret); + ret = dwc3_qcom_request_irq(qcom, irq, irq_name); + if (ret) return ret; - } - qcom->dm_hs_phy_irq = irq; + qcom->ports[port_index].ss_phy_irq = irq; } - irq = platform_get_irq_byname_optional(pdev, "ss_phy_irq"); + if (is_multiport) + return 0; + + irq = platform_get_irq_byname_optional(pdev, "qusb2_phy"); if (irq > 0) { - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, - qcom_dwc3_resume_irq, - IRQF_ONESHOT | IRQF_NO_AUTOEN, - "qcom_dwc3 SS", qcom); - if (ret) { - dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret); + ret = dwc3_qcom_request_irq(qcom, irq, "qusb2_phy"); + if (ret) + return ret; + qcom->ports[port_index].qusb2_phy_irq = irq; + } + + return 0; +} + +static int dwc3_qcom_find_num_ports(struct platform_device *pdev) +{ + char irq_name[14]; + int port_num; + int irq; + + irq = platform_get_irq_byname_optional(pdev, "dp_hs_phy_1"); + if (irq <= 0) + return 1; + + for (port_num = 2; port_num <= DWC3_QCOM_MAX_PORTS; port_num++) { + sprintf(irq_name, "dp_hs_phy_%d", port_num); + + irq = platform_get_irq_byname_optional(pdev, irq_name); + if (irq <= 0) + return port_num - 1; + } + + return DWC3_QCOM_MAX_PORTS; +} + +static int dwc3_qcom_setup_irq(struct platform_device *pdev) +{ + struct dwc3_qcom *qcom = platform_get_drvdata(pdev); + bool is_multiport; + int ret; + int i; + + qcom->num_ports = dwc3_qcom_find_num_ports(pdev); + is_multiport = (qcom->num_ports > 1); + + for (i = 0; i < qcom->num_ports; i++) { + ret = dwc3_qcom_setup_port_irq(pdev, i, is_multiport); + if (ret) return ret; - } - qcom->ss_phy_irq = irq; } return 0; @@ -613,11 +703,12 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) static int dwc3_qcom_of_register_core(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node, *dwc3_np; + struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; int ret; - dwc3_np = of_get_compatible_child(np, "snps,dwc3"); + struct device_node *dwc3_np __free(device_node) = of_get_compatible_child(np, + "snps,dwc3"); if (!dwc3_np) { dev_err(dev, "failed to find dwc3 core child\n"); return -ENODEV; @@ -626,7 +717,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); - goto node_put; + return ret; } qcom->dwc3 = of_find_device_by_node(dwc3_np); @@ -636,9 +727,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) of_platform_depopulate(dev); } -node_put: - of_node_put(dwc3_np); - return ret; } @@ -647,7 +735,6 @@ static int dwc3_qcom_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; struct dwc3_qcom *qcom; - struct resource *res; int ret, i; bool ignore_pipe_clk; bool wakeup_source; @@ -685,9 +772,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) goto reset_assert; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - qcom->qscratch_base = devm_ioremap_resource(dev, res); + qcom->qscratch_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(qcom->qscratch_base)) { ret = PTR_ERR(qcom->qscratch_base); goto clk_disable; @@ -836,7 +921,7 @@ MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match); static struct platform_driver dwc3_qcom_driver = { .probe = dwc3_qcom_probe, - .remove_new = dwc3_qcom_remove, + .remove = dwc3_qcom_remove, .driver = { .name = "dwc3-qcom", .pm = &dwc3_qcom_dev_pm_ops, diff --git a/drivers/usb/dwc3/dwc3-rtk.c b/drivers/usb/dwc3/dwc3-rtk.c index 3cd6b184551c..56c53e0c0257 100644 --- a/drivers/usb/dwc3/dwc3-rtk.c +++ b/drivers/usb/dwc3/dwc3-rtk.c @@ -6,6 +6,7 @@ * */ +#include <linux/cleanup.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/platform_device.h> @@ -173,23 +174,20 @@ static const char *const speed_names[] = { static enum usb_device_speed __get_dwc3_maximum_speed(struct device_node *np) { - struct device_node *dwc3_np; const char *maximum_speed; int ret; - dwc3_np = of_get_compatible_child(np, "snps,dwc3"); + struct device_node *dwc3_np __free(device_node) = of_get_compatible_child(np, + "snps,dwc3"); if (!dwc3_np) return USB_SPEED_UNKNOWN; ret = of_property_read_string(dwc3_np, "maximum-speed", &maximum_speed); if (ret < 0) - goto out; + return USB_SPEED_UNKNOWN; ret = match_string(speed_names, ARRAY_SIZE(speed_names), maximum_speed); -out: - of_node_put(dwc3_np); - return (ret < 0) ? USB_SPEED_UNKNOWN : ret; } @@ -276,7 +274,6 @@ static int dwc3_rtk_probe_dwc3_core(struct dwc3_rtk *rtk) struct device_node *node = dev->of_node; struct platform_device *dwc3_pdev; struct device *dwc3_dev; - struct device_node *dwc3_node; enum usb_dr_mode dr_mode; int ret = 0; @@ -290,7 +287,8 @@ static int dwc3_rtk_probe_dwc3_core(struct dwc3_rtk *rtk) return ret; } - dwc3_node = of_get_compatible_child(node, "snps,dwc3"); + struct device_node *dwc3_node __free(device_node) = of_get_compatible_child(node, + "snps,dwc3"); if (!dwc3_node) { dev_err(dev, "failed to find dwc3 core node\n"); ret = -ENODEV; @@ -301,7 +299,7 @@ static int dwc3_rtk_probe_dwc3_core(struct dwc3_rtk *rtk) if (!dwc3_pdev) { dev_err(dev, "failed to find dwc3 core platform_device\n"); ret = -ENODEV; - goto err_node_put; + goto depopulate; } dwc3_dev = &dwc3_pdev->dev; @@ -343,14 +341,11 @@ static int dwc3_rtk_probe_dwc3_core(struct dwc3_rtk *rtk) switch_usb2_role(rtk, rtk->cur_role); platform_device_put(dwc3_pdev); - of_node_put(dwc3_node); return 0; err_pdev_put: platform_device_put(dwc3_pdev); -err_node_put: - of_node_put(dwc3_node); depopulate: of_platform_depopulate(dev); @@ -363,30 +358,18 @@ static int dwc3_rtk_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct resource *res; void __iomem *regs; - int ret = 0; rtk = devm_kzalloc(dev, sizeof(*rtk), GFP_KERNEL); - if (!rtk) { - ret = -ENOMEM; - goto out; - } + if (!rtk) + return -ENOMEM; platform_set_drvdata(pdev, rtk); rtk->dev = dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "missing memory resource\n"); - ret = -ENODEV; - goto out; - } - - regs = devm_ioremap_resource(dev, res); - if (IS_ERR(regs)) { - ret = PTR_ERR(regs); - goto out; - } + regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(regs)) + return PTR_ERR(regs); rtk->regs = regs; rtk->regs_size = resource_size(res); @@ -394,16 +377,11 @@ static int dwc3_rtk_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (res) { rtk->pm_base = devm_ioremap_resource(dev, res); - if (IS_ERR(rtk->pm_base)) { - ret = PTR_ERR(rtk->pm_base); - goto out; - } + if (IS_ERR(rtk->pm_base)) + return PTR_ERR(rtk->pm_base); } - ret = dwc3_rtk_probe_dwc3_core(rtk); - -out: - return ret; + return dwc3_rtk_probe_dwc3_core(rtk); } static void dwc3_rtk_remove(struct platform_device *pdev) @@ -463,7 +441,7 @@ static const struct dev_pm_ops dwc3_rtk_dev_pm_ops = { static struct platform_driver dwc3_rtk_driver = { .probe = dwc3_rtk_probe, - .remove_new = dwc3_rtk_remove, + .remove = dwc3_rtk_remove, .driver = { .name = "rtk-dwc3", .of_match_table = rtk_dwc3_match, diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c index 211360eee95a..5d513decaacd 100644 --- a/drivers/usb/dwc3/dwc3-st.c +++ b/drivers/usb/dwc3/dwc3-st.c @@ -14,6 +14,7 @@ * Inspired by dwc3-omap.c and dwc3-exynos.c. */ +#include <linux/cleanup.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/io.h> @@ -197,7 +198,7 @@ static int st_dwc3_probe(struct platform_device *pdev) struct st_dwc3 *dwc3_data; struct resource *res; struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node, *child; + struct device_node *node = dev->of_node; struct platform_device *child_pdev; struct regmap *regmap; int ret; @@ -219,23 +220,26 @@ static int st_dwc3_probe(struct platform_device *pdev) dwc3_data->regmap = regmap; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "syscfg-reg"); - if (!res) { - ret = -ENXIO; - goto undo_platform_dev_alloc; - } + if (!res) + return -ENXIO; dwc3_data->syscfg_reg_off = res->start; - dev_vdbg(&pdev->dev, "glue-logic addr 0x%pK, syscfg-reg offset 0x%x\n", + dev_vdbg(dev, "glue-logic addr 0x%p, syscfg-reg offset 0x%x\n", dwc3_data->glue_base, dwc3_data->syscfg_reg_off); + struct device_node *child __free(device_node) = of_get_compatible_child(node, + "snps,dwc3"); + if (!child) { + dev_err(dev, "failed to find dwc3 core node\n"); + return -ENODEV; + } + dwc3_data->rstc_pwrdn = devm_reset_control_get_exclusive(dev, "powerdown"); - if (IS_ERR(dwc3_data->rstc_pwrdn)) { - dev_err(&pdev->dev, "could not get power controller\n"); - ret = PTR_ERR(dwc3_data->rstc_pwrdn); - goto undo_platform_dev_alloc; - } + if (IS_ERR(dwc3_data->rstc_pwrdn)) + return dev_err_probe(dev, PTR_ERR(dwc3_data->rstc_pwrdn), + "could not get power controller\n"); /* Manage PowerDown */ reset_control_deassert(dwc3_data->rstc_pwrdn); @@ -243,37 +247,29 @@ static int st_dwc3_probe(struct platform_device *pdev) dwc3_data->rstc_rst = devm_reset_control_get_shared(dev, "softreset"); if (IS_ERR(dwc3_data->rstc_rst)) { - dev_err(&pdev->dev, "could not get reset controller\n"); - ret = PTR_ERR(dwc3_data->rstc_rst); + ret = dev_err_probe(dev, PTR_ERR(dwc3_data->rstc_rst), + "could not get reset controller\n"); goto undo_powerdown; } /* Manage SoftReset */ reset_control_deassert(dwc3_data->rstc_rst); - child = of_get_compatible_child(node, "snps,dwc3"); - if (!child) { - dev_err(&pdev->dev, "failed to find dwc3 core node\n"); - ret = -ENODEV; - goto err_node_put; - } - /* Allocate and initialize the core */ ret = of_platform_populate(node, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to add dwc3 core\n"); - goto err_node_put; + goto undo_softreset; } child_pdev = of_find_device_by_node(child); if (!child_pdev) { dev_err(dev, "failed to find dwc3 core device\n"); ret = -ENODEV; - goto err_node_put; + goto depopulate; } dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev); - of_node_put(child); platform_device_put(child_pdev); /* @@ -285,7 +281,7 @@ static int st_dwc3_probe(struct platform_device *pdev) ret = st_dwc3_drd_init(dwc3_data); if (ret) { dev_err(dev, "drd initialisation failed\n"); - goto undo_softreset; + goto depopulate; } /* ST glue logic init */ @@ -294,14 +290,12 @@ static int st_dwc3_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dwc3_data); return 0; -err_node_put: - of_node_put(child); +depopulate: + of_platform_depopulate(dev); undo_softreset: reset_control_assert(dwc3_data->rstc_rst); undo_powerdown: reset_control_assert(dwc3_data->rstc_pwrdn); -undo_platform_dev_alloc: - platform_device_put(pdev); return ret; } @@ -315,7 +309,6 @@ static void st_dwc3_remove(struct platform_device *pdev) reset_control_assert(dwc3_data->rstc_rst); } -#ifdef CONFIG_PM_SLEEP static int st_dwc3_suspend(struct device *dev) { struct st_dwc3 *dwc3_data = dev_get_drvdata(dev); @@ -349,9 +342,8 @@ static int st_dwc3_resume(struct device *dev) return 0; } -#endif /* CONFIG_PM_SLEEP */ -static SIMPLE_DEV_PM_OPS(st_dwc3_dev_pm_ops, st_dwc3_suspend, st_dwc3_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(st_dwc3_dev_pm_ops, st_dwc3_suspend, st_dwc3_resume); static const struct of_device_id st_dwc3_match[] = { { .compatible = "st,stih407-dwc3" }, @@ -362,11 +354,11 @@ MODULE_DEVICE_TABLE(of, st_dwc3_match); static struct platform_driver st_dwc3_driver = { .probe = st_dwc3_probe, - .remove_new = st_dwc3_remove, + .remove = st_dwc3_remove, .driver = { .name = "usb-st-dwc3", .of_match_table = st_dwc3_match, - .pm = &st_dwc3_dev_pm_ops, + .pm = pm_sleep_ptr(&st_dwc3_dev_pm_ops), }, }; diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c index 6095f4dee6ce..4ca7f6240d07 100644 --- a/drivers/usb/dwc3/dwc3-xilinx.c +++ b/drivers/usb/dwc3/dwc3-xilinx.c @@ -121,8 +121,11 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data) * in use but the usb3-phy entry is missing from the device tree. * Therefore, skip these operations in this case. */ - if (!priv_data->usb3_phy) + if (!priv_data->usb3_phy) { + /* Deselect the PIPE Clock Select bit in FPD PIPE Clock register */ + writel(PIPE_CLK_DESELECT, priv_data->regs + XLNX_USB_FPD_PIPE_CLK); goto skip_usb3_phy; + } crst = devm_reset_control_get_exclusive(dev, "usb_crst"); if (IS_ERR(crst)) { @@ -204,15 +207,13 @@ static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data) skip_usb3_phy: /* ulpi reset via gpio-modepin or gpio-framework driver */ - reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); + reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(reset_gpio)) { return dev_err_probe(dev, PTR_ERR(reset_gpio), "Failed to request reset GPIO\n"); } if (reset_gpio) { - /* Toggle ulpi to reset the phy. */ - gpiod_set_value_cansleep(reset_gpio, 1); usleep_range(5000, 10000); gpiod_set_value_cansleep(reset_gpio, 0); usleep_range(5000, 10000); @@ -246,6 +247,31 @@ static const struct of_device_id dwc3_xlnx_of_match[] = { }; MODULE_DEVICE_TABLE(of, dwc3_xlnx_of_match); +static int dwc3_set_swnode(struct device *dev) +{ + struct device_node *np = dev->of_node, *dwc3_np; + struct property_entry props[2]; + int prop_idx = 0, ret = 0; + + dwc3_np = of_get_compatible_child(np, "snps,dwc3"); + if (!dwc3_np) { + ret = -ENODEV; + dev_err(dev, "failed to find dwc3 core child\n"); + return ret; + } + + memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props)); + if (of_dma_is_coherent(dwc3_np)) + props[prop_idx++] = PROPERTY_ENTRY_U16("snps,gsbuscfg0-reqinfo", + 0xffff); + of_node_put(dwc3_np); + + if (prop_idx) + ret = device_create_managed_software_node(dev, props, NULL); + + return ret; +} + static int dwc3_xlnx_probe(struct platform_device *pdev) { struct dwc3_xlnx *priv_data; @@ -260,11 +286,8 @@ static int dwc3_xlnx_probe(struct platform_device *pdev) return -ENOMEM; regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(regs)) { - ret = PTR_ERR(regs); - dev_err_probe(dev, ret, "failed to map registers\n"); - return ret; - } + if (IS_ERR(regs)) + return dev_err_probe(dev, PTR_ERR(regs), "failed to map registers\n"); match = of_match_node(dwc3_xlnx_of_match, pdev->dev.of_node); @@ -288,6 +311,10 @@ static int dwc3_xlnx_probe(struct platform_device *pdev) if (ret) goto err_clk_put; + ret = dwc3_set_swnode(dev); + if (ret) + goto err_clk_put; + ret = of_platform_populate(np, NULL, NULL, dev); if (ret) goto err_clk_put; @@ -298,9 +325,14 @@ static int dwc3_xlnx_probe(struct platform_device *pdev) goto err_pm_set_suspended; pm_suspend_ignore_children(dev, false); - return pm_runtime_resume_and_get(dev); + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) + goto err_pm_set_suspended; + + return 0; err_pm_set_suspended: + of_platform_depopulate(dev); pm_runtime_set_suspended(dev); err_clk_put: @@ -389,7 +421,7 @@ static const struct dev_pm_ops dwc3_xlnx_dev_pm_ops = { static struct platform_driver dwc3_xlnx_driver = { .probe = dwc3_xlnx_probe, - .remove_new = dwc3_xlnx_remove, + .remove = dwc3_xlnx_remove, .driver = { .name = "dwc3-xilinx", .of_match_table = dwc3_xlnx_of_match, diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index d96ffbe52039..666ac432f52d 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -145,7 +145,7 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep, * Unfortunately we have uncovered a limitation wrt the Data Phase. * * Section 9.4 says we can wait for the XferNotReady(DATA) event to - * come before issueing Start Transfer command, but if we do, we will + * come before issuing Start Transfer command, but if we do, we will * miss situations where the host starts another SETUP phase instead of * the DATA phase. Such cases happen at least on TD.7.6 of the Link * Layer Compliance Suite. @@ -232,7 +232,8 @@ void dwc3_ep0_stall_and_restart(struct dwc3 *dwc) /* stall is always issued on EP0 */ dep = dwc->eps[0]; __dwc3_gadget_ep_set_halt(dep, 1, false); - dep->flags = DWC3_EP_ENABLED; + dep->flags &= DWC3_EP_RESOURCE_ALLOCATED | DWC3_EP_TRANSFER_STARTED; + dep->flags |= DWC3_EP_ENABLED; dwc->delayed_status = false; if (!list_empty(&dep->pending_list)) { diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 4df2661f6675..321361288935 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -197,7 +197,6 @@ static void dwc3_gadget_del_and_unmap_request(struct dwc3_ep *dep, list_del(&req->list); req->remaining = 0; - req->needs_extra_trb = false; req->num_trbs = 0; if (req->request.status == -EINPROGRESS) @@ -277,8 +276,6 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned int cmd, return ret; } -static int __dwc3_gadget_wakeup(struct dwc3 *dwc, bool async); - /** * dwc3_send_gadget_ep_cmd - issue an endpoint command * @dep: the endpoint to which the command is going to be issued @@ -287,6 +284,23 @@ static int __dwc3_gadget_wakeup(struct dwc3 *dwc, bool async); * * Caller should handle locking. This function will issue @cmd with given * @params to @dep and wait for its completion. + * + * According to the programming guide, if the link state is in L1/L2/U3, + * then sending the Start Transfer command may not complete. The + * programming guide suggested to bring the link state back to ON/U0 by + * performing remote wakeup prior to sending the command. However, don't + * initiate remote wakeup when the user/function does not send wakeup + * request via wakeup ops. Send the command when it's allowed. + * + * Notes: + * For L1 link state, issuing a command requires the clearing of + * GUSB2PHYCFG.SUSPENDUSB2, which turns on the signal required to complete + * the given command (usually within 50us). This should happen within the + * command timeout set by driver. No additional step is needed. + * + * For L2 or U3 link state, the gadget is in USB suspend. Care should be + * taken when sending Start Transfer command to ensure that it's done after + * USB resume. */ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd, struct dwc3_gadget_ep_cmd_params *params) @@ -327,30 +341,6 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd, dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); } - if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) { - int link_state; - - /* - * Initiate remote wakeup if the link state is in U3 when - * operating in SS/SSP or L1/L2 when operating in HS/FS. If the - * link state is in U1/U2, no remote wakeup is needed. The Start - * Transfer command will initiate the link recovery. - */ - link_state = dwc3_gadget_get_link_state(dwc); - switch (link_state) { - case DWC3_LINK_STATE_U2: - if (dwc->gadget->speed >= USB_SPEED_SUPER) - break; - - fallthrough; - case DWC3_LINK_STATE_U3: - ret = __dwc3_gadget_wakeup(dwc, false); - dev_WARN_ONCE(dwc->dev, ret, "wakeup failed --> %d\n", - ret); - break; - } - } - /* * For some commands such as Update Transfer command, DEPCMDPARn * registers are reserved. Since the driver often sends Update Transfer @@ -445,6 +435,10 @@ skip_status: dwc3_gadget_ep_get_transfer_index(dep); } + if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_ENDTRANSFER && + !(cmd & DWC3_DEPCMD_CMDIOC)) + mdelay(1); + if (saved_config) { reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); reg |= saved_config; @@ -551,6 +545,7 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3_ep *dep) int dwc3_gadget_start_config(struct dwc3 *dwc, unsigned int resource_index) { struct dwc3_gadget_ep_cmd_params params; + struct dwc3_ep *dep; u32 cmd; int i; int ret; @@ -567,8 +562,13 @@ int dwc3_gadget_start_config(struct dwc3 *dwc, unsigned int resource_index) return ret; /* Reset resource allocation flags */ - for (i = resource_index; i < dwc->num_eps && dwc->eps[i]; i++) - dwc->eps[i]->flags &= ~DWC3_EP_RESOURCE_ALLOCATED; + for (i = resource_index; i < dwc->num_eps; i++) { + dep = dwc->eps[i]; + if (!dep) + continue; + + dep->flags &= ~DWC3_EP_RESOURCE_ALLOCATED; + } return 0; } @@ -691,6 +691,44 @@ static int dwc3_gadget_calc_tx_fifo_size(struct dwc3 *dwc, int mult) } /** + * dwc3_gadget_calc_ram_depth - calculates the ram depth for txfifo + * @dwc: pointer to the DWC3 context + */ +static int dwc3_gadget_calc_ram_depth(struct dwc3 *dwc) +{ + int ram_depth; + int fifo_0_start; + bool is_single_port_ram; + + /* Check supporting RAM type by HW */ + is_single_port_ram = DWC3_SPRAM_TYPE(dwc->hwparams.hwparams1); + + /* + * If a single port RAM is utilized, then allocate TxFIFOs from + * RAM0. otherwise, allocate them from RAM1. + */ + ram_depth = is_single_port_ram ? DWC3_RAM0_DEPTH(dwc->hwparams.hwparams6) : + DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7); + + /* + * In a single port RAM configuration, the available RAM is shared + * between the RX and TX FIFOs. This means that the txfifo can begin + * at a non-zero address. + */ + if (is_single_port_ram) { + u32 reg; + + /* Check if TXFIFOs start at non-zero addr */ + reg = dwc3_readl(dwc->regs, DWC3_GTXFIFOSIZ(0)); + fifo_0_start = DWC3_GTXFIFOSIZ_TXFSTADDR(reg); + + ram_depth -= (fifo_0_start >> 16); + } + + return ram_depth; +} + +/** * dwc3_gadget_clear_tx_fifos - Clears txfifo allocation * @dwc: pointer to the DWC3 context * @@ -717,9 +755,11 @@ void dwc3_gadget_clear_tx_fifos(struct dwc3 *dwc) dwc->last_fifo_depth = fifo_depth; /* Clear existing TXFIFO for all IN eps except ep0 */ - for (num = 3; num < min_t(int, dwc->num_eps, DWC3_ENDPOINTS_NUM); - num += 2) { + for (num = 3; num < min_t(int, dwc->num_eps, DWC3_ENDPOINTS_NUM); num += 2) { dep = dwc->eps[num]; + if (!dep) + continue; + /* Don't change TXFRAMNUM on usb31 version */ size = DWC3_IP_IS(DWC3) ? 0 : dwc3_readl(dwc->regs, DWC3_GTXFIFOSIZ(num >> 1)) & @@ -756,7 +796,7 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) { struct dwc3 *dwc = dep->dwc; int fifo_0_start; - int ram1_depth; + int ram_depth; int fifo_size; int min_depth; int num_in_ep; @@ -776,17 +816,32 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) if (dep->flags & DWC3_EP_TXFIFO_RESIZED) return 0; - ram1_depth = DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7); - - if ((dep->endpoint.maxburst > 1 && - usb_endpoint_xfer_bulk(dep->endpoint.desc)) || - usb_endpoint_xfer_isoc(dep->endpoint.desc)) - num_fifos = 3; + ram_depth = dwc3_gadget_calc_ram_depth(dwc); - if (dep->endpoint.maxburst > 6 && - (usb_endpoint_xfer_bulk(dep->endpoint.desc) || - usb_endpoint_xfer_isoc(dep->endpoint.desc)) && DWC3_IP_IS(DWC31)) - num_fifos = dwc->tx_fifo_resize_max_num; + switch (dwc->gadget->speed) { + case USB_SPEED_SUPER_PLUS: + case USB_SPEED_SUPER: + if (usb_endpoint_xfer_bulk(dep->endpoint.desc) || + usb_endpoint_xfer_isoc(dep->endpoint.desc)) + num_fifos = min_t(unsigned int, + dep->endpoint.maxburst, + dwc->tx_fifo_resize_max_num); + break; + case USB_SPEED_HIGH: + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) { + num_fifos = min_t(unsigned int, + usb_endpoint_maxp_mult(dep->endpoint.desc) + 1, + dwc->tx_fifo_resize_max_num); + break; + } + fallthrough; + case USB_SPEED_FULL: + if (usb_endpoint_xfer_bulk(dep->endpoint.desc)) + num_fifos = 2; + break; + default: + break; + } /* FIFO size for a single buffer */ fifo = dwc3_gadget_calc_tx_fifo_size(dwc, 1); @@ -797,7 +852,7 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) /* Reserve at least one FIFO for the number of IN EPs */ min_depth = num_in_ep * (fifo + 1); - remaining = ram1_depth - min_depth - dwc->last_fifo_depth; + remaining = ram_depth - min_depth - dwc->last_fifo_depth; remaining = max_t(int, 0, remaining); /* * We've already reserved 1 FIFO per EP, so check what we can fit in @@ -823,9 +878,9 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) dwc->last_fifo_depth += DWC31_GTXFIFOSIZ_TXFDEP(fifo_size); /* Check fifo size allocation doesn't exceed available RAM size. */ - if (dwc->last_fifo_depth >= ram1_depth) { + if (dwc->last_fifo_depth >= ram_depth) { dev_err(dwc->dev, "Fifosize(%d) > RAM size(%d) %s depth:%d\n", - dwc->last_fifo_depth, ram1_depth, + dwc->last_fifo_depth, ram_depth, dep->endpoint.name, fifo_size); if (DWC3_IP_IS(DWC3)) fifo_size = DWC3_GTXFIFOSIZ_TXFDEP(fifo_size); @@ -947,8 +1002,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action) /* * All stream eps will reinitiate stream on NoStream - * rejection until we can determine that the host can - * prime after the first transfer. + * rejection. * * However, if the controller is capable of * TXF_FLUSH_BYPASS, then IN direction endpoints will @@ -1180,11 +1234,14 @@ static u32 dwc3_calc_trbs_left(struct dwc3_ep *dep) * pending to be processed by the driver. */ if (dep->trb_enqueue == dep->trb_dequeue) { + struct dwc3_request *req; + /* - * If there is any request remained in the started_list at - * this point, that means there is no TRB available. + * If there is any request remained in the started_list with + * active TRBs at this point, then there is no TRB available. */ - if (!list_empty(&dep->started_list)) + req = next_request(&dep->started_list); + if (req && req->num_trbs) return 0; return DWC3_TRB_NUM - 1; @@ -1387,6 +1444,7 @@ static int dwc3_prepare_last_sg(struct dwc3_ep *dep, unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc); unsigned int rem = req->request.length % maxp; unsigned int num_trbs = 1; + bool needs_extra_trb; if (dwc3_needs_extra_trb(dep, req)) num_trbs++; @@ -1394,15 +1452,15 @@ static int dwc3_prepare_last_sg(struct dwc3_ep *dep, if (dwc3_calc_trbs_left(dep) < num_trbs) return 0; - req->needs_extra_trb = num_trbs > 1; + needs_extra_trb = num_trbs > 1; /* Prepare a normal TRB */ if (req->direction || req->request.length) dwc3_prepare_one_trb(dep, req, entry_length, - req->needs_extra_trb, node, false, false); + needs_extra_trb, node, false, false); /* Prepare extra TRBs for ZLP and MPS OUT transfer alignment */ - if ((!req->direction && !req->request.length) || req->needs_extra_trb) + if ((!req->direction && !req->request.length) || needs_extra_trb) dwc3_prepare_one_trb(dep, req, req->direction ? 0 : maxp - rem, false, 1, true, false); @@ -1417,8 +1475,8 @@ static int dwc3_prepare_trbs_sg(struct dwc3_ep *dep, struct scatterlist *s; int i; unsigned int length = req->request.length; - unsigned int remaining = req->request.num_mapped_sgs - - req->num_queued_sgs; + unsigned int remaining = req->num_pending_sgs; + unsigned int num_queued_sgs = req->request.num_mapped_sgs - remaining; unsigned int num_trbs = req->num_trbs; bool needs_extra_trb = dwc3_needs_extra_trb(dep, req); @@ -1426,7 +1484,7 @@ static int dwc3_prepare_trbs_sg(struct dwc3_ep *dep, * If we resume preparing the request, then get the remaining length of * the request and resume where we left off. */ - for_each_sg(req->request.sg, s, req->num_queued_sgs, i) + for_each_sg(req->request.sg, s, num_queued_sgs, i) length -= sg_dma_len(s); for_each_sg(sg, s, remaining, i) { @@ -1491,7 +1549,6 @@ static int dwc3_prepare_trbs_sg(struct dwc3_ep *dep, if (!last_sg) req->start_sg = sg_next(s); - req->num_queued_sgs++; req->num_pending_sgs--; /* @@ -1572,9 +1629,7 @@ static int dwc3_prepare_trbs(struct dwc3_ep *dep) if (ret) return ret; - req->sg = req->request.sg; - req->start_sg = req->sg; - req->num_queued_sgs = 0; + req->start_sg = req->request.sg; req->num_pending_sgs = req->request.num_mapped_sgs; if (req->num_pending_sgs > 0) { @@ -1699,7 +1754,6 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc) */ static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool interrupt) { - struct dwc3 *dwc = dep->dwc; struct dwc3_gadget_ep_cmd_params params; u32 cmd; int ret; @@ -1723,13 +1777,10 @@ static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool int WARN_ON_ONCE(ret); dep->resource_index = 0; - if (!interrupt) { - if (!DWC3_IP_IS(DWC3) || DWC3_VER_IS_PRIOR(DWC3, 310A)) - mdelay(1); + if (!interrupt) dep->flags &= ~DWC3_EP_TRANSFER_STARTED; - } else if (!ret) { + else if (!ret) dep->flags |= DWC3_EP_END_TRANSFER_PENDING; - } dep->flags &= ~DWC3_EP_DELAY_STOP; return ret; @@ -1926,12 +1977,12 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) return -ESHUTDOWN; } - if (WARN(req->dep != dep, "request %pK belongs to '%s'\n", + if (WARN(req->dep != dep, "request %p belongs to '%s'\n", &req->request, req->dep->name)) return -EINVAL; if (WARN(req->status < DWC3_REQUEST_STATUS_COMPLETED, - "%s: request %pK already in flight\n", + "%s: request %p already in flight\n", dep->name, &req->request)) return -EINVAL; @@ -2120,7 +2171,7 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, } } - dev_err(dwc->dev, "request %pK was not queued to %s\n", + dev_err(dwc->dev, "request %p was not queued to %s\n", request, ep->name); ret = -EINVAL; out: @@ -2306,10 +2357,8 @@ static int dwc3_gadget_get_frame(struct usb_gadget *g) return __dwc3_gadget_get_frame(dwc); } -static int __dwc3_gadget_wakeup(struct dwc3 *dwc, bool async) +static int __dwc3_gadget_wakeup(struct dwc3 *dwc) { - int retries; - int ret; u32 reg; @@ -2337,8 +2386,7 @@ static int __dwc3_gadget_wakeup(struct dwc3 *dwc, bool async) return -EINVAL; } - if (async) - dwc3_gadget_enable_linksts_evts(dwc, true); + dwc3_gadget_enable_linksts_evts(dwc, true); ret = dwc3_gadget_set_link_state(dwc, DWC3_LINK_STATE_RECOV); if (ret < 0) { @@ -2357,27 +2405,8 @@ static int __dwc3_gadget_wakeup(struct dwc3 *dwc, bool async) /* * Since link status change events are enabled we will receive - * an U0 event when wakeup is successful. So bail out. + * an U0 event when wakeup is successful. */ - if (async) - return 0; - - /* poll until Link State changes to ON */ - retries = 20000; - - while (retries--) { - reg = dwc3_readl(dwc->regs, DWC3_DSTS); - - /* in HS, means ON */ - if (DWC3_DSTS_USBLNKST(reg) == DWC3_LINK_STATE_U0) - break; - } - - if (DWC3_DSTS_USBLNKST(reg) != DWC3_LINK_STATE_U0) { - dev_err(dwc->dev, "failed to send remote wakeup\n"); - return -EINVAL; - } - return 0; } @@ -2398,7 +2427,7 @@ static int dwc3_gadget_wakeup(struct usb_gadget *g) spin_unlock_irqrestore(&dwc->lock, flags); return -EINVAL; } - ret = __dwc3_gadget_wakeup(dwc, true); + ret = __dwc3_gadget_wakeup(dwc); spin_unlock_irqrestore(&dwc->lock, flags); @@ -2426,14 +2455,10 @@ static int dwc3_gadget_func_wakeup(struct usb_gadget *g, int intf_id) */ link_state = dwc3_gadget_get_link_state(dwc); if (link_state == DWC3_LINK_STATE_U3) { - ret = __dwc3_gadget_wakeup(dwc, false); - if (ret) { - spin_unlock_irqrestore(&dwc->lock, flags); - return -EINVAL; - } - dwc3_resume_gadget(dwc); - dwc->suspended = false; - dwc->link_state = DWC3_LINK_STATE_U0; + dwc->wakeup_pending_funcs |= BIT(intf_id); + ret = __dwc3_gadget_wakeup(dwc); + spin_unlock_irqrestore(&dwc->lock, flags); + return ret; } ret = dwc3_send_gadget_generic_command(dwc, DWC3_DGCMD_DEV_NOTIFICATION, @@ -2584,10 +2609,38 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on) { u32 reg; u32 timeout = 2000; + u32 saved_config = 0; if (pm_runtime_suspended(dwc->dev)) return 0; + /* + * When operating in USB 2.0 speeds (HS/FS), ensure that + * GUSB2PHYCFG.ENBLSLPM and GUSB2PHYCFG.SUSPHY are cleared before starting + * or stopping the controller. This resolves timeout issues that occur + * during frequent role switches between host and device modes. + * + * Save and clear these settings, then restore them after completing the + * controller start or stop sequence. + * + * This solution was discovered through experimentation as it is not + * mentioned in the dwc3 programming guide. It has been tested on an + * Exynos platforms. + */ + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + if (reg & DWC3_GUSB2PHYCFG_SUSPHY) { + saved_config |= DWC3_GUSB2PHYCFG_SUSPHY; + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + } + + if (reg & DWC3_GUSB2PHYCFG_ENBLSLPM) { + saved_config |= DWC3_GUSB2PHYCFG_ENBLSLPM; + reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM; + } + + if (saved_config) + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + reg = dwc3_readl(dwc->regs, DWC3_DCTL); if (is_on) { if (DWC3_VER_IS_WITHIN(DWC3, ANY, 187A)) { @@ -2615,6 +2668,12 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on) reg &= DWC3_DSTS_DEVCTRLHLT; } while (--timeout && !(!is_on ^ !reg)); + if (saved_config) { + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + reg |= saved_config; + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + } + if (!timeout) return -ETIMEDOUT; @@ -2694,6 +2753,8 @@ static int dwc3_gadget_soft_disconnect(struct dwc3 *dwc) __dwc3_gadget_stop(dwc); spin_unlock_irqrestore(&dwc->lock, flags); + usb_gadget_set_state(dwc->gadget, USB_STATE_NOTATTACHED); + return ret; } @@ -2924,6 +2985,7 @@ static int __dwc3_gadget_start(struct dwc3 *dwc) dwc3_ep0_out_start(dwc); dwc3_gadget_enable_irq(dwc); + dwc3_enable_susphy(dwc, true); return 0; @@ -3081,7 +3143,7 @@ static int dwc3_gadget_check_config(struct usb_gadget *g) struct dwc3 *dwc = gadget_to_dwc(g); struct usb_ep *ep; int fifo_size = 0; - int ram1_depth; + int ram_depth; int ep_num = 0; if (!dwc->do_fifo_resize) @@ -3104,8 +3166,8 @@ static int dwc3_gadget_check_config(struct usb_gadget *g) fifo_size += dwc->max_cfg_eps; /* Check if we can fit a single fifo per endpoint */ - ram1_depth = DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7); - if (fifo_size > ram1_depth) + ram_depth = dwc3_gadget_calc_ram_depth(dwc); + if (fifo_size > ram_depth) return -ENOMEM; return 0; @@ -3251,6 +3313,50 @@ static int dwc3_gadget_init_out_endpoint(struct dwc3_ep *dep) return dwc3_alloc_trb_pool(dep); } +#define nostream_work_to_dep(w) (container_of(to_delayed_work(w), struct dwc3_ep, nostream_work)) +static void dwc3_nostream_work(struct work_struct *work) +{ + struct dwc3_ep *dep = nostream_work_to_dep(work); + struct dwc3 *dwc = dep->dwc; + unsigned long flags; + + spin_lock_irqsave(&dwc->lock, flags); + if (dep->flags & DWC3_EP_STREAM_PRIMED) + goto out; + + if ((dep->flags & DWC3_EP_IGNORE_NEXT_NOSTREAM) || + (!DWC3_MST_CAPABLE(&dwc->hwparams) && + !(dep->flags & DWC3_EP_WAIT_TRANSFER_COMPLETE))) + goto out; + /* + * If the host rejects a stream due to no active stream, by the + * USB and xHCI spec, the endpoint will be put back to idle + * state. When the host is ready (buffer added/updated), it will + * prime the endpoint to inform the usb device controller. This + * triggers the device controller to issue ERDY to restart the + * stream. However, some hosts don't follow this and keep the + * endpoint in the idle state. No prime will come despite host + * streams are updated, and the device controller will not be + * triggered to generate ERDY to move the next stream data. To + * workaround this and maintain compatibility with various + * hosts, force to reinitiate the stream until the host is ready + * instead of waiting for the host to prime the endpoint. + */ + if (DWC3_VER_IS_WITHIN(DWC32, 100A, ANY)) { + unsigned int cmd = DWC3_DGCMD_SET_ENDPOINT_PRIME; + + dwc3_send_gadget_generic_command(dwc, cmd, dep->number); + } else { + dep->flags |= DWC3_EP_DELAY_START; + dwc3_stop_active_transfer(dep, true, true); + spin_unlock_irqrestore(&dwc->lock, flags); + return; + } +out: + dep->flags &= ~DWC3_EP_IGNORE_NEXT_NOSTREAM; + spin_unlock_irqrestore(&dwc->lock, flags); +} + static int dwc3_gadget_init_endpoint(struct dwc3 *dwc, u8 epnum) { struct dwc3_ep *dep; @@ -3296,20 +3402,60 @@ static int dwc3_gadget_init_endpoint(struct dwc3 *dwc, u8 epnum) INIT_LIST_HEAD(&dep->pending_list); INIT_LIST_HEAD(&dep->started_list); INIT_LIST_HEAD(&dep->cancelled_list); + INIT_DELAYED_WORK(&dep->nostream_work, dwc3_nostream_work); dwc3_debugfs_create_endpoint_dir(dep); return 0; } +static int dwc3_gadget_get_reserved_endpoints(struct dwc3 *dwc, const char *propname, + u8 *eps, u8 num) +{ + u8 count; + int ret; + + if (!device_property_present(dwc->dev, propname)) + return 0; + + ret = device_property_count_u8(dwc->dev, propname); + if (ret < 0) + return ret; + count = ret; + + ret = device_property_read_u8_array(dwc->dev, propname, eps, min(num, count)); + if (ret) + return ret; + + return count; +} + static int dwc3_gadget_init_endpoints(struct dwc3 *dwc, u8 total) { + const char *propname = "snps,reserved-endpoints"; u8 epnum; + u8 reserved_eps[DWC3_ENDPOINTS_NUM]; + u8 count; + u8 num; + int ret; INIT_LIST_HEAD(&dwc->gadget->ep_list); + ret = dwc3_gadget_get_reserved_endpoints(dwc, propname, + reserved_eps, ARRAY_SIZE(reserved_eps)); + if (ret < 0) { + dev_err(dwc->dev, "failed to read %s\n", propname); + return ret; + } + count = ret; + for (epnum = 0; epnum < total; epnum++) { - int ret; + for (num = 0; num < count; num++) { + if (epnum == reserved_eps[num]) + break; + } + if (num < count) + continue; ret = dwc3_gadget_init_endpoint(dwc, epnum); if (ret) @@ -3422,20 +3568,16 @@ static int dwc3_gadget_ep_reclaim_trb_sg(struct dwc3_ep *dep, int status) { struct dwc3_trb *trb; - struct scatterlist *sg = req->sg; - struct scatterlist *s; - unsigned int num_queued = req->num_queued_sgs; + unsigned int num_completed_trbs = req->num_trbs; unsigned int i; int ret = 0; - for_each_sg(sg, s, num_queued, i) { + for (i = 0; i < num_completed_trbs; i++) { trb = &dep->trb_pool[dep->trb_dequeue]; - req->sg = sg_next(s); - req->num_queued_sgs--; - ret = dwc3_gadget_ep_reclaim_completed_trb(dep, req, - trb, event, status, true); + trb, event, status, + !!(trb->ctrl & DWC3_TRB_CTRL_CHN)); if (ret) break; } @@ -3443,19 +3585,9 @@ static int dwc3_gadget_ep_reclaim_trb_sg(struct dwc3_ep *dep, return ret; } -static int dwc3_gadget_ep_reclaim_trb_linear(struct dwc3_ep *dep, - struct dwc3_request *req, const struct dwc3_event_depevt *event, - int status) -{ - struct dwc3_trb *trb = &dep->trb_pool[dep->trb_dequeue]; - - return dwc3_gadget_ep_reclaim_completed_trb(dep, req, trb, - event, status, false); -} - static bool dwc3_gadget_ep_request_completed(struct dwc3_request *req) { - return req->num_pending_sgs == 0 && req->num_queued_sgs == 0; + return req->num_pending_sgs == 0 && req->num_trbs == 0; } static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep, @@ -3465,24 +3597,13 @@ static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep, int request_status; int ret; - if (req->request.num_mapped_sgs) - ret = dwc3_gadget_ep_reclaim_trb_sg(dep, req, event, - status); - else - ret = dwc3_gadget_ep_reclaim_trb_linear(dep, req, event, - status); + ret = dwc3_gadget_ep_reclaim_trb_sg(dep, req, event, status); req->request.actual = req->request.length - req->remaining; if (!dwc3_gadget_ep_request_completed(req)) goto out; - if (req->needs_extra_trb) { - ret = dwc3_gadget_ep_reclaim_trb_linear(dep, req, event, - status); - req->needs_extra_trb = false; - } - /* * The event status only reflects the status of the TRB with IOC set. * For the requests that don't set interrupt on completion, the driver @@ -3601,6 +3722,8 @@ out: for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) { dep = dwc->eps[i]; + if (!dep) + continue; if (!(dep->flags & DWC3_EP_ENABLED)) continue; @@ -3720,66 +3843,27 @@ static void dwc3_gadget_endpoint_command_complete(struct dwc3_ep *dep, static void dwc3_gadget_endpoint_stream_event(struct dwc3_ep *dep, const struct dwc3_event_depevt *event) { - struct dwc3 *dwc = dep->dwc; - if (event->status == DEPEVT_STREAMEVT_FOUND) { - dep->flags |= DWC3_EP_FIRST_STREAM_PRIMED; - goto out; + cancel_delayed_work(&dep->nostream_work); + dep->flags |= DWC3_EP_STREAM_PRIMED; + dep->flags &= ~DWC3_EP_IGNORE_NEXT_NOSTREAM; + return; } /* Note: NoStream rejection event param value is 0 and not 0xFFFF */ switch (event->parameters) { case DEPEVT_STREAM_PRIME: - /* - * If the host can properly transition the endpoint state from - * idle to prime after a NoStream rejection, there's no need to - * force restarting the endpoint to reinitiate the stream. To - * simplify the check, assume the host follows the USB spec if - * it primed the endpoint more than once. - */ - if (dep->flags & DWC3_EP_FORCE_RESTART_STREAM) { - if (dep->flags & DWC3_EP_FIRST_STREAM_PRIMED) - dep->flags &= ~DWC3_EP_FORCE_RESTART_STREAM; - else - dep->flags |= DWC3_EP_FIRST_STREAM_PRIMED; - } - + cancel_delayed_work(&dep->nostream_work); + dep->flags |= DWC3_EP_STREAM_PRIMED; + dep->flags &= ~DWC3_EP_IGNORE_NEXT_NOSTREAM; break; case DEPEVT_STREAM_NOSTREAM: - if ((dep->flags & DWC3_EP_IGNORE_NEXT_NOSTREAM) || - !(dep->flags & DWC3_EP_FORCE_RESTART_STREAM) || - (!DWC3_MST_CAPABLE(&dwc->hwparams) && - !(dep->flags & DWC3_EP_WAIT_TRANSFER_COMPLETE))) - break; - - /* - * If the host rejects a stream due to no active stream, by the - * USB and xHCI spec, the endpoint will be put back to idle - * state. When the host is ready (buffer added/updated), it will - * prime the endpoint to inform the usb device controller. This - * triggers the device controller to issue ERDY to restart the - * stream. However, some hosts don't follow this and keep the - * endpoint in the idle state. No prime will come despite host - * streams are updated, and the device controller will not be - * triggered to generate ERDY to move the next stream data. To - * workaround this and maintain compatibility with various - * hosts, force to reinitiate the stream until the host is ready - * instead of waiting for the host to prime the endpoint. - */ - if (DWC3_VER_IS_WITHIN(DWC32, 100A, ANY)) { - unsigned int cmd = DWC3_DGCMD_SET_ENDPOINT_PRIME; - - dwc3_send_gadget_generic_command(dwc, cmd, dep->number); - } else { - dep->flags |= DWC3_EP_DELAY_START; - dwc3_stop_active_transfer(dep, true, true); - return; - } + dep->flags &= ~DWC3_EP_STREAM_PRIMED; + if (dep->flags & DWC3_EP_FORCE_RESTART_STREAM) + queue_delayed_work(system_wq, &dep->nostream_work, + msecs_to_jiffies(100)); break; } - -out: - dep->flags &= ~DWC3_EP_IGNORE_NEXT_NOSTREAM; } static void dwc3_endpoint_interrupt(struct dwc3 *dwc, @@ -3789,6 +3873,10 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, u8 epnum = event->endpoint_number; dep = dwc->eps[epnum]; + if (!dep) { + dev_warn(dwc->dev, "spurious event, endpoint %u is not allocated\n", epnum); + return; + } if (!(dep->flags & DWC3_EP_ENABLED)) { if ((epnum > 1) && !(dep->flags & DWC3_EP_TRANSFER_STARTED)) @@ -4173,8 +4261,10 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) WARN_ONCE(DWC3_VER_IS_PRIOR(DWC3, 240A) && dwc->has_lpm_erratum, "LPM Erratum not available on dwc3 revisions < 2.40a\n"); - if (dwc->has_lpm_erratum && !DWC3_VER_IS_PRIOR(DWC3, 240A)) + if (dwc->has_lpm_erratum && !DWC3_VER_IS_PRIOR(DWC3, 240A)) { + reg &= ~DWC3_DCTL_NYET_THRES_MASK; reg |= DWC3_DCTL_NYET_THRES(dwc->lpm_nyet_threshold); + } dwc3_gadget_dctl_write_safe(dwc, reg); } else { @@ -4235,6 +4325,8 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc, { enum dwc3_link_state next = evtinfo & DWC3_LINK_STATE_MASK; unsigned int pwropt; + int ret; + int intf_id; /* * WORKAROUND: DWC3 < 2.50a have an issue when configured without @@ -4310,7 +4402,7 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc, switch (next) { case DWC3_LINK_STATE_U0: - if (dwc->gadget->wakeup_armed) { + if (dwc->gadget->wakeup_armed || dwc->wakeup_pending_funcs) { dwc3_gadget_enable_linksts_evts(dwc, false); dwc3_resume_gadget(dwc); dwc->suspended = false; @@ -4333,6 +4425,18 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc, } dwc->link_state = next; + + /* Proceed with func wakeup if any interfaces that has requested */ + while (dwc->wakeup_pending_funcs && (next == DWC3_LINK_STATE_U0)) { + intf_id = ffs(dwc->wakeup_pending_funcs) - 1; + ret = dwc3_send_gadget_generic_command(dwc, DWC3_DGCMD_DEV_NOTIFICATION, + DWC3_DGCMDPAR_DN_FUNC_WAKE | + DWC3_DGCMDPAR_INTF_SEL(intf_id)); + if (ret) + dev_err(dwc->dev, "Failed to send DN wake for intf %d\n", intf_id); + + dwc->wakeup_pending_funcs &= ~BIT(intf_id); + } } static void dwc3_gadget_suspend_interrupt(struct dwc3 *dwc, @@ -4436,14 +4540,18 @@ static irqreturn_t dwc3_process_event_buf(struct dwc3_event_buffer *evt) dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(0), DWC3_GEVNTSIZ_SIZE(evt->length)); + evt->flags &= ~DWC3_EVENT_PENDING; + /* + * Add an explicit write memory barrier to make sure that the update of + * clearing DWC3_EVENT_PENDING is observed in dwc3_check_event_buf() + */ + wmb(); + if (dwc->imod_interval) { dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), DWC3_GEVNTCOUNT_EHB); dwc3_writel(dwc->regs, DWC3_DEV_IMOD(0), dwc->imod_interval); } - /* Keep the clearing of DWC3_EVENT_PENDING at the end */ - evt->flags &= ~DWC3_EVENT_PENDING; - return ret; } @@ -4495,6 +4603,12 @@ static irqreturn_t dwc3_check_event_buf(struct dwc3_event_buffer *evt) if (!count) return IRQ_NONE; + if (count > evt->length) { + dev_err_ratelimited(dwc->dev, "invalid count(%u) > evt->length(%u)\n", + count, evt->length); + return IRQ_NONE; + } + evt->count = count; evt->flags |= DWC3_EVENT_PENDING; @@ -4690,6 +4804,7 @@ void dwc3_gadget_exit(struct dwc3 *dwc) if (!dwc->gadget) return; + dwc3_enable_susphy(dwc, false); usb_del_gadget(dwc->gadget); dwc3_gadget_free_endpoints(dwc); usb_put_gadget(dwc->gadget); @@ -4735,14 +4850,3 @@ int dwc3_gadget_resume(struct dwc3 *dwc) return dwc3_gadget_soft_connect(dwc); } - -void dwc3_gadget_process_pending_events(struct dwc3 *dwc) -{ - if (dwc->pending_events) { - dwc3_interrupt(dwc->irq_gadget, dwc->ev_buf); - dwc3_thread_interrupt(dwc->irq_gadget, dwc->ev_buf); - pm_runtime_put(dwc->dev); - dwc->pending_events = false; - enable_irq(dwc->irq_gadget); - } -} diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 0204787df81d..b48e108fc8fe 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -10,10 +10,13 @@ #include <linux/irq.h> #include <linux/of.h> #include <linux/platform_device.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> #include "../host/xhci-port.h" #include "../host/xhci-ext-caps.h" #include "../host/xhci-caps.h" +#include "../host/xhci-plat.h" #include "core.h" #define XHCI_HCSPARAMS1 0x4 @@ -32,7 +35,7 @@ static void dwc3_power_off_all_roothub_ports(struct dwc3 *dwc) u32 reg; int i; - /* xhci regs is not mapped yet, do it temperary here */ + /* xhci regs are not mapped yet, do it temporarily here */ if (dwc->xhci_resources[0].start) { xhci_regs = ioremap(dwc->xhci_resources[0].start, DWC3_XHCI_REGS_END); if (!xhci_regs) { @@ -57,6 +60,24 @@ static void dwc3_power_off_all_roothub_ports(struct dwc3 *dwc) } } +static void dwc3_xhci_plat_start(struct usb_hcd *hcd) +{ + struct platform_device *pdev; + struct dwc3 *dwc; + + if (!usb_hcd_is_primary_hcd(hcd)) + return; + + pdev = to_platform_device(hcd->self.controller); + dwc = dev_get_drvdata(pdev->dev.parent); + + dwc3_enable_susphy(dwc, true); +} + +static const struct xhci_plat_priv dwc3_xhci_plat_quirk = { + .plat_start = dwc3_xhci_plat_start, +}; + static void dwc3_host_fill_xhci_irq_res(struct dwc3 *dwc, int irq, char *name) { @@ -105,7 +126,7 @@ out: int dwc3_host_init(struct dwc3 *dwc) { - struct property_entry props[5]; + struct property_entry props[6]; struct platform_device *xhci; int ret, irq; int prop_idx = 0; @@ -141,6 +162,8 @@ int dwc3_host_init(struct dwc3 *dwc) props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-sg-trb-cache-size-quirk"); + props[prop_idx++] = PROPERTY_ENTRY_BOOL("write-64-hi-lo-quirk"); + if (dwc->usb3_lpm_capable) props[prop_idx++] = PROPERTY_ENTRY_BOOL("usb3-lpm-capable"); @@ -167,6 +190,11 @@ int dwc3_host_init(struct dwc3 *dwc) } } + ret = platform_device_add_data(xhci, &dwc3_xhci_plat_quirk, + sizeof(struct xhci_plat_priv)); + if (ret) + goto err; + ret = platform_device_add(xhci); if (ret) { dev_err(dwc->dev, "failed to register xHCI device\n"); @@ -192,6 +220,7 @@ void dwc3_host_exit(struct dwc3 *dwc) if (dwc->sys_wakeup) device_init_wakeup(&dwc->xhci->dev, false); + dwc3_enable_susphy(dwc, false); platform_device_unregister(dwc->xhci); dwc->xhci = NULL; } diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h index d2997d17cfbe..bdeb1aaf65d8 100644 --- a/drivers/usb/dwc3/trace.h +++ b/drivers/usb/dwc3/trace.h @@ -112,7 +112,7 @@ DECLARE_EVENT_CLASS(dwc3_log_request, __field(int, no_interrupt) ), TP_fast_assign( - __assign_str(name, req->dep->name); + __assign_str(name); __entry->req = req; __entry->actual = req->request.actual; __entry->length = req->request.length; @@ -193,7 +193,7 @@ DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd, __field(int, cmd_status) ), TP_fast_assign( - __assign_str(name, dep->name); + __assign_str(name); __entry->cmd = cmd; __entry->param0 = params->param0; __entry->param1 = params->param1; @@ -229,7 +229,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb, __field(u32, dequeue) ), TP_fast_assign( - __assign_str(name, dep->name); + __assign_str(name); __entry->trb = trb; __entry->bpl = trb->bpl; __entry->bph = trb->bph; @@ -301,7 +301,7 @@ DECLARE_EVENT_CLASS(dwc3_log_ep, __field(u8, trb_dequeue) ), TP_fast_assign( - __assign_str(name, dep->name); + __assign_str(name); __entry->maxpacket = dep->endpoint.maxpacket; __entry->maxpacket_limit = dep->endpoint.maxpacket_limit; __entry->max_streams = dep->endpoint.max_streams; diff --git a/drivers/usb/fotg210/Makefile b/drivers/usb/fotg210/Makefile index 5aecff21f24b..8f5b0fb9b988 100644 --- a/drivers/usb/fotg210/Makefile +++ b/drivers/usb/fotg210/Makefile @@ -1,10 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -# This setup links the different object files into one single -# module so we don't have to EXPORT() a lot of internal symbols -# or create unnecessary submodules. -fotg210-objs-y += fotg210-core.o -fotg210-objs-$(CONFIG_USB_FOTG210_HCD) += fotg210-hcd.o -fotg210-objs-$(CONFIG_USB_FOTG210_UDC) += fotg210-udc.o -fotg210-objs := $(fotg210-objs-y) obj-$(CONFIG_USB_FOTG210) += fotg210.o +fotg210-y := fotg210-core.o +fotg210-$(CONFIG_USB_FOTG210_HCD) += fotg210-hcd.o +fotg210-$(CONFIG_USB_FOTG210_UDC) += fotg210-udc.o diff --git a/drivers/usb/fotg210/fotg210-core.c b/drivers/usb/fotg210/fotg210-core.c index 958fc40eae86..7fb4d4715e9f 100644 --- a/drivers/usb/fotg210/fotg210-core.c +++ b/drivers/usb/fotg210/fotg210-core.c @@ -13,6 +13,7 @@ #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regmap.h> +#include <linux/string_choices.h> #include <linux/usb.h> #include <linux/usb/otg.h> @@ -95,6 +96,7 @@ static int fotg210_gemini_init(struct fotg210 *fotg, struct resource *res, /** * fotg210_vbus() - Called by gadget driver to enable/disable VBUS + * @fotg: pointer to a private fotg210 object * @enable: true to enable VBUS, false to disable VBUS */ void fotg210_vbus(struct fotg210 *fotg, bool enable) @@ -118,8 +120,8 @@ void fotg210_vbus(struct fotg210 *fotg, bool enable) ret = regmap_update_bits(fotg->map, GEMINI_GLOBAL_MISC_CTRL, mask, val); if (ret) dev_err(fotg->dev, "failed to %s VBUS\n", - enable ? "enable" : "disable"); - dev_info(fotg->dev, "%s: %s VBUS\n", __func__, enable ? "enable" : "disable"); + str_enable_disable(enable)); + dev_info(fotg->dev, "%s: %s VBUS\n", __func__, str_enable_disable(enable)); } static int fotg210_probe(struct platform_device *pdev) @@ -194,7 +196,7 @@ static struct platform_driver fotg210_driver = { .of_match_table = of_match_ptr(fotg210_of_match), }, .probe = fotg210_probe, - .remove_new = fotg210_remove, + .remove = fotg210_remove, }; static int __init fotg210_init(void) diff --git a/drivers/usb/fotg210/fotg210-hcd.c b/drivers/usb/fotg210/fotg210-hcd.c index 8c5aaf860635..64c4965a160f 100644 --- a/drivers/usb/fotg210/fotg210-hcd.c +++ b/drivers/usb/fotg210/fotg210-hcd.c @@ -36,7 +36,7 @@ #include <asm/byteorder.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "fotg210.h" @@ -4901,8 +4901,7 @@ static int hcd_fotg210_init(struct usb_hcd *hcd) */ fotg210->need_io_watchdog = 1; - hrtimer_init(&fotg210->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - fotg210->hrtimer.function = fotg210_hrtimer_func; + hrtimer_setup(&fotg210->hrtimer, fotg210_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); fotg210->next_hrtimer_event = FOTG210_HRTIMER_NO_EVENT; hcc_params = fotg210_readl(fotg210, &fotg210->caps->hcc_params); diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 566ff0b1282a..76521555e3c1 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -211,6 +211,8 @@ config USB_F_MIDI config USB_F_MIDI2 tristate + select SND_UMP + select SND_UMP_LEGACY_RAWMIDI config USB_F_HID tristate @@ -445,8 +447,6 @@ config USB_CONFIGFS_F_MIDI2 depends on USB_CONFIGFS depends on SND select USB_LIBCOMPOSITE - select SND_UMP - select SND_UMP_LEGACY_RAWMIDI select USB_F_MIDI2 help The MIDI 2.0 function driver provides the generic emulated diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 0ace45b66a31..8dbc132a505e 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -19,7 +19,7 @@ #include <linux/usb/composite.h> #include <linux/usb/otg.h> #include <linux/usb/webusb.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "u_os_desc.h" @@ -1050,10 +1050,11 @@ static int set_config(struct usb_composite_dev *cdev, else usb_gadget_set_remote_wakeup(gadget, 0); done: - if (power <= USB_SELF_POWER_VBUS_MAX_DRAW) - usb_gadget_set_selfpowered(gadget); - else + if (power > USB_SELF_POWER_VBUS_MAX_DRAW || + (c && !(c->bmAttributes & USB_CONFIG_ATT_SELFPOWER))) usb_gadget_clear_selfpowered(gadget); + else + usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, power); if (result >= 0 && cdev->delayed_status) @@ -1844,7 +1845,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) cdev->desc.bcdUSB = cpu_to_le16(0x0200); } - value = min(w_length, (u16) sizeof cdev->desc); + value = min_t(u16, w_length, sizeof(cdev->desc)); memcpy(req->buf, &cdev->desc, value); break; case USB_DT_DEVICE_QUALIFIER: @@ -1863,19 +1864,19 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) case USB_DT_CONFIG: value = config_desc(cdev, w_value); if (value >= 0) - value = min(w_length, (u16) value); + value = min_t(u16, w_length, value); break; case USB_DT_STRING: value = get_string(cdev, req->buf, w_index, w_value & 0xff); if (value >= 0) - value = min(w_length, (u16) value); + value = min_t(u16, w_length, value); break; case USB_DT_BOS: if (gadget_is_superspeed(gadget) || gadget->lpm_capable || cdev->use_webusb) { value = bos_desc(cdev); - value = min(w_length, (u16) value); + value = min_t(u16, w_length, value); } break; case USB_DT_OTG: @@ -1930,7 +1931,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) *(u8 *)req->buf = cdev->config->bConfigurationValue; else *(u8 *)req->buf = 0; - value = min(w_length, (u16) 1); + value = min_t(u16, w_length, 1); break; /* function drivers must handle get/set altsetting */ @@ -1976,7 +1977,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) if (value < 0) break; *((u8 *)req->buf) = value; - value = min(w_length, (u16) 1); + value = min_t(u16, w_length, 1); break; case USB_REQ_GET_STATUS: if (gadget_is_otg(gadget) && gadget->hnp_polling_support && @@ -2010,15 +2011,13 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) if (f->get_status) { status = f->get_status(f); + if (status < 0) break; - } else { - /* Set D0 and D1 bits based on func wakeup capability */ - if (f->config->bmAttributes & USB_CONFIG_ATT_WAKEUP) { - status |= USB_INTRF_STAT_FUNC_RW_CAP; - if (f->func_wakeup_armed) - status |= USB_INTRF_STAT_FUNC_RW; - } + + /* if D5 is not set, then device is not wakeup capable */ + if (!(f->config->bmAttributes & USB_CONFIG_ATT_WAKEUP)) + status &= ~(USB_INTRF_STAT_FUNC_RW_CAP | USB_INTRF_STAT_FUNC_RW); } put_unaligned_le16(status & 0x0000ffff, req->buf); @@ -2111,6 +2110,18 @@ unknown: memset(buf, 0, w_length); buf[5] = 0x01; switch (ctrl->bRequestType & USB_RECIP_MASK) { + /* + * The Microsoft CompatID OS Descriptor Spec(w_index = 0x4) and + * Extended Prop OS Desc Spec(w_index = 0x5) state that the + * HighByte of wValue is the InterfaceNumber and the LowByte is + * the PageNumber. This high/low byte ordering is incorrectly + * documented in the Spec. USB analyzer output on the below + * request packets show the high/low byte inverted i.e LowByte + * is the InterfaceNumber and the HighByte is the PageNumber. + * Since we dont support >64KB CompatID/ExtendedProp descriptors, + * PageNumber is set to 0. Hence verify that the HighByte is 0 + * for below two cases. + */ case USB_RECIP_DEVICE: if (w_index != 0x4 || (w_value >> 8)) break; @@ -2603,7 +2614,10 @@ void composite_suspend(struct usb_gadget *gadget) cdev->suspended = 1; - usb_gadget_set_selfpowered(gadget); + if (cdev->config && + cdev->config->bmAttributes & USB_CONFIG_ATT_SELFPOWER) + usb_gadget_set_selfpowered(gadget); + usb_gadget_vbus_draw(gadget, 2); } @@ -2637,8 +2651,11 @@ void composite_resume(struct usb_gadget *gadget) else maxpower = min(maxpower, 900U); - if (maxpower > USB_SELF_POWER_VBUS_MAX_DRAW) + if (maxpower > USB_SELF_POWER_VBUS_MAX_DRAW || + !(cdev->config->bmAttributes & USB_CONFIG_ATT_SELFPOWER)) usb_gadget_clear_selfpowered(gadget); + else + usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, maxpower); } else { @@ -2799,5 +2816,6 @@ void usb_composite_overwrite_options(struct usb_composite_dev *cdev, } EXPORT_SYMBOL_GPL(usb_composite_overwrite_options); +MODULE_DESCRIPTION("infrastructure for Composite USB Gadgets"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index b1f625245713..95f144a54ed9 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -57,11 +57,11 @@ EXPORT_SYMBOL_GPL(usb_descriptor_fillbuf); * usb_gadget_config_buf - builts a complete configuration descriptor * @config: Header for the descriptor, including characteristics such * as power requirements and number of interfaces. - * @desc: Null-terminated vector of pointers to the descriptors (interface, - * endpoint, etc) defining all functions in this device configuration. * @buf: Buffer for the resulting configuration descriptor. * @length: Length of buffer. If this is not big enough to hold the * entire configuration descriptor, an error code will be returned. + * @desc: Null-terminated vector of pointers to the descriptors (interface, + * endpoint, etc) defining all functions in this device configuration. * * This copies descriptors into the response buffer, building a descriptor * for that configuration. It returns the buffer length or a negative diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index ce3cfa1f36f5..fba2a56dae97 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -6,13 +6,13 @@ #include <linux/kstrtox.h> #include <linux/nls.h> #include <linux/usb/composite.h> +#include <linux/usb/func_utils.h> #include <linux/usb/gadget_configfs.h> #include <linux/usb/webusb.h> #include "configfs.h" -#include "u_f.h" #include "u_os_desc.h" -int check_user_usb_string(const char *name, +static int check_user_usb_string(const char *name, struct usb_gadget_strings *stringtab_dev) { u16 num; @@ -115,9 +115,12 @@ static int usb_string_copy(const char *s, char **s_copy) int ret; char *str; char *copy = *s_copy; + ret = strlen(s); if (ret > USB_MAX_STRING_LEN) return -EOVERFLOW; + if (ret < 1) + return -EINVAL; if (copy) { str = copy; @@ -824,11 +827,15 @@ static ssize_t gadget_string_s_store(struct config_item *item, const char *page, { struct gadget_string *string = to_gadget_string(item); int size = min(sizeof(string->string), len + 1); + ssize_t cpy_len; if (len > USB_MAX_STRING_LEN) return -EINVAL; - return strscpy(string->string, page, size); + cpy_len = strscpy(string->string, page, size); + if (cpy_len > 0 && string->string[cpy_len - 1] == '\n') + string->string[cpy_len - 1] = 0; + return len; } CONFIGFS_ATTR(gadget_string_, s); @@ -899,7 +906,7 @@ static struct configfs_group_operations gadget_language_langid_group_ops = { .drop_item = gadget_language_string_drop, }; -static struct config_item_type gadget_language_type = { +static const struct config_item_type gadget_language_type = { .ct_item_ops = &gadget_language_langid_item_ops, .ct_group_ops = &gadget_language_langid_group_ops, .ct_attrs = gadget_language_langid_attrs, @@ -958,7 +965,7 @@ static struct configfs_group_operations gadget_language_group_ops = { .drop_item = &gadget_language_drop, }; -static struct config_item_type gadget_language_strings_type = { +static const struct config_item_type gadget_language_strings_type = { .ct_group_ops = &gadget_language_group_ops, .ct_owner = THIS_MODULE, }; @@ -1103,7 +1110,7 @@ static struct configfs_attribute *webusb_attrs[] = { NULL, }; -static struct config_item_type webusb_type = { +static const struct config_item_type webusb_type = { .ct_attrs = webusb_attrs, .ct_owner = THIS_MODULE, }; @@ -1181,7 +1188,7 @@ static ssize_t os_desc_qw_sign_store(struct config_item *item, const char *page, struct gadget_info *gi = os_desc_item_to_gadget_info(item); int res, l; - l = min((int)len, OS_STRING_QW_SIGN_LEN >> 1); + l = min_t(int, len, OS_STRING_QW_SIGN_LEN >> 1); if (page[l - 1] == '\n') --l; @@ -1260,7 +1267,7 @@ static struct configfs_item_operations os_desc_ops = { .drop_link = os_desc_unlink, }; -static struct config_item_type os_desc_type = { +static const struct config_item_type os_desc_type = { .ct_item_ops = &os_desc_ops, .ct_attrs = os_desc_attrs, .ct_owner = THIS_MODULE, diff --git a/drivers/usb/gadget/function/Makefile b/drivers/usb/gadget/function/Makefile index 87917a7d4a9b..7ce1637276f0 100644 --- a/drivers/usb/gadget/function/Makefile +++ b/drivers/usb/gadget/function/Makefile @@ -41,6 +41,10 @@ obj-$(CONFIG_USB_F_UAC1_LEGACY) += usb_f_uac1_legacy.o usb_f_uac2-y := f_uac2.o obj-$(CONFIG_USB_F_UAC2) += usb_f_uac2.o usb_f_uvc-y := f_uvc.o uvc_queue.o uvc_v4l2.o uvc_video.o uvc_configfs.o +ifneq ($(CONFIG_TRACING),) + CFLAGS_uvc_trace.o := -I$(src) + usb_f_uvc-y += uvc_trace.o +endif obj-$(CONFIG_USB_F_UVC) += usb_f_uvc.o usb_f_midi-y := f_midi.o obj-$(CONFIG_USB_F_MIDI) += usb_f_midi.o diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c index f616059c5e1e..7061720b9732 100644 --- a/drivers/usb/gadget/function/f_acm.c +++ b/drivers/usb/gadget/function/f_acm.c @@ -41,6 +41,7 @@ struct f_acm { struct gserial port; u8 ctrl_id, data_id; u8 port_num; + u8 bInterfaceProtocol; u8 pending; @@ -89,7 +90,7 @@ acm_iad_descriptor = { .bInterfaceCount = 2, // control + data .bFunctionClass = USB_CLASS_COMM, .bFunctionSubClass = USB_CDC_SUBCLASS_ACM, - .bFunctionProtocol = USB_CDC_ACM_PROTO_AT_V25TER, + /* .bFunctionProtocol = DYNAMIC */ /* .iFunction = DYNAMIC */ }; @@ -101,7 +102,7 @@ static struct usb_interface_descriptor acm_control_interface_desc = { .bNumEndpoints = 1, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM, - .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER, + /* .bInterfaceProtocol = DYNAMIC */ /* .iInterface = DYNAMIC */ }; @@ -663,6 +664,9 @@ acm_bind(struct usb_configuration *c, struct usb_function *f) goto fail; acm->notify = ep; + acm_iad_descriptor.bFunctionProtocol = acm->bInterfaceProtocol; + acm_control_interface_desc.bInterfaceProtocol = acm->bInterfaceProtocol; + /* allocate notification */ acm->notify_req = gs_alloc_req(ep, sizeof(struct usb_cdc_notification) + 2, @@ -719,8 +723,14 @@ static void acm_unbind(struct usb_configuration *c, struct usb_function *f) static void acm_free_func(struct usb_function *f) { struct f_acm *acm = func_to_acm(f); + struct f_serial_opts *opts; + + opts = container_of(f->fi, struct f_serial_opts, func_inst); kfree(acm); + mutex_lock(&opts->lock); + opts->instances--; + mutex_unlock(&opts->lock); } static void acm_resume(struct usb_function *f) @@ -761,7 +771,11 @@ static struct usb_function *acm_alloc_func(struct usb_function_instance *fi) acm->port.func.disable = acm_disable; opts = container_of(fi, struct f_serial_opts, func_inst); + mutex_lock(&opts->lock); acm->port_num = opts->port_num; + acm->bInterfaceProtocol = opts->protocol; + opts->instances++; + mutex_unlock(&opts->lock); acm->port.func.unbind = acm_unbind; acm->port.func.free_func = acm_free_func; acm->port.func.resume = acm_resume; @@ -812,11 +826,42 @@ static ssize_t f_acm_port_num_show(struct config_item *item, char *page) CONFIGFS_ATTR_RO(f_acm_, port_num); +static ssize_t f_acm_protocol_show(struct config_item *item, char *page) +{ + return sprintf(page, "%u\n", to_f_serial_opts(item)->protocol); +} + +static ssize_t f_acm_protocol_store(struct config_item *item, + const char *page, size_t count) +{ + struct f_serial_opts *opts = to_f_serial_opts(item); + int ret; + + mutex_lock(&opts->lock); + + if (opts->instances) { + ret = -EBUSY; + goto out; + } + + ret = kstrtou8(page, 0, &opts->protocol); + if (ret) + goto out; + ret = count; + +out: + mutex_unlock(&opts->lock); + return ret; +} + +CONFIGFS_ATTR(f_acm_, protocol); + static struct configfs_attribute *acm_attrs[] = { #ifdef CONFIG_U_SERIAL_CONSOLE &f_acm_attr_console, #endif &f_acm_attr_port_num, + &f_acm_attr_protocol, NULL, }; @@ -832,6 +877,7 @@ static void acm_free_instance(struct usb_function_instance *fi) opts = container_of(fi, struct f_serial_opts, func_inst); gserial_free_line(opts->port_num); + mutex_destroy(&opts->lock); kfree(opts); } @@ -843,7 +889,9 @@ static struct usb_function_instance *acm_alloc_instance(void) opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) return ERR_PTR(-ENOMEM); + opts->protocol = USB_CDC_ACM_PROTO_AT_V25TER; opts->func_inst.free_func_inst = acm_free_instance; + mutex_init(&opts->lock); ret = gserial_alloc_line(&opts->port_num); if (ret) { kfree(opts); @@ -854,4 +902,5 @@ static struct usb_function_instance *acm_alloc_instance(void) return &opts->func_inst; } DECLARE_USB_FUNCTION_INIT(acm, acm_alloc_instance, acm_alloc_func); +MODULE_DESCRIPTION("USB CDC serial (ACM) function driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/f_ecm.c b/drivers/usb/gadget/function/f_ecm.c index f55f60639e42..027226325039 100644 --- a/drivers/usb/gadget/function/f_ecm.c +++ b/drivers/usb/gadget/function/f_ecm.c @@ -13,6 +13,7 @@ #include <linux/module.h> #include <linux/device.h> #include <linux/etherdevice.h> +#include <linux/string_choices.h> #include "u_ether.h" #include "u_ether_configfs.h" @@ -387,8 +388,7 @@ static void ecm_do_notify(struct f_ecm *ecm) event->wLength = 0; req->length = sizeof *event; - DBG(cdev, "notify connect %s\n", - ecm->is_open ? "true" : "false"); + DBG(cdev, "notify connect %s\n", str_true_false(ecm->is_open)); ecm->notify_state = ECM_NOTIFY_SPEED; break; @@ -892,6 +892,12 @@ static void ecm_resume(struct usb_function *f) gether_resume(&ecm->port); } +static int ecm_get_status(struct usb_function *f) +{ + return (f->func_wakeup_armed ? USB_INTRF_STAT_FUNC_RW : 0) | + USB_INTRF_STAT_FUNC_RW_CAP; +} + static void ecm_free(struct usb_function *f) { struct f_ecm *ecm; @@ -960,11 +966,13 @@ static struct usb_function *ecm_alloc(struct usb_function_instance *fi) ecm->port.func.disable = ecm_disable; ecm->port.func.free_func = ecm_free; ecm->port.func.suspend = ecm_suspend; + ecm->port.func.get_status = ecm_get_status; ecm->port.func.resume = ecm_resume; return &ecm->port.func; } DECLARE_USB_FUNCTION_INIT(ecm, ecm_alloc_inst, ecm_alloc); +MODULE_DESCRIPTION("USB CDC Ethernet (ECM) link function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/function/f_eem.c b/drivers/usb/gadget/function/f_eem.c index 3b445bd88498..6de81ea17274 100644 --- a/drivers/usb/gadget/function/f_eem.c +++ b/drivers/usb/gadget/function/f_eem.c @@ -674,5 +674,6 @@ static struct usb_function *eem_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(eem, eem_alloc_inst, eem_alloc); +MODULE_DESCRIPTION("USB CDC Ethernet (EEM) link function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index f855f1fc8e5e..2dea9e42a0f8 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -28,11 +28,12 @@ #include <linux/sched/signal.h> #include <linux/uio.h> #include <linux/vmalloc.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb/ccid.h> #include <linux/usb/composite.h> #include <linux/usb/functionfs.h> +#include <linux/usb/func_utils.h> #include <linux/aio.h> #include <linux/kthread.h> @@ -40,15 +41,15 @@ #include <linux/eventfd.h> #include "u_fs.h" -#include "u_f.h" #include "u_os_desc.h" #include "configfs.h" #define FUNCTIONFS_MAGIC 0xa647361 /* Chosen by a honest dice roll ;) */ +#define MAX_ALT_SETTINGS 2 /* Allow up to 2 alt settings to be set. */ #define DMABUF_ENQUEUE_TIMEOUT_MS 5000 -MODULE_IMPORT_NS(DMA_BUF); +MODULE_IMPORT_NS("DMA_BUF"); /* Reference counter handling */ static void ffs_data_get(struct ffs_data *ffs); @@ -82,6 +83,7 @@ struct ffs_function { short *interfaces_nums; struct usb_function function; + int cur_alt[MAX_CONFIG_INTERFACES]; }; @@ -105,6 +107,7 @@ static int __must_check ffs_func_eps_enable(struct ffs_function *func); static int ffs_func_bind(struct usb_configuration *, struct usb_function *); static int ffs_func_set_alt(struct usb_function *, unsigned, unsigned); +static int ffs_func_get_alt(struct usb_function *f, unsigned int intf); static void ffs_func_disable(struct usb_function *); static int ffs_func_setup(struct usb_function *, const struct usb_ctrlrequest *); @@ -453,7 +456,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf, } /* FFS_SETUP_PENDING and not stall */ - len = min(len, (size_t)le16_to_cpu(ffs->ev.setup.wLength)); + len = min_t(size_t, len, le16_to_cpu(ffs->ev.setup.wLength)); spin_unlock_irq(&ffs->ev.waitq.lock); @@ -587,7 +590,7 @@ static ssize_t ffs_ep0_read(struct file *file, char __user *buf, /* unlocks spinlock */ return __ffs_ep0_read_events(ffs, buf, - min(n, (size_t)ffs->ev.count)); + min_t(size_t, n, ffs->ev.count)); case FFS_SETUP_PENDING: if (ffs->ev.setup.bRequestType & USB_DIR_IN) { @@ -596,7 +599,7 @@ static ssize_t ffs_ep0_read(struct file *file, char __user *buf, goto done_mutex; } - len = min(len, (size_t)le16_to_cpu(ffs->ev.setup.wLength)); + len = min_t(size_t, len, le16_to_cpu(ffs->ev.setup.wLength)); spin_unlock_irq(&ffs->ev.waitq.lock); @@ -719,7 +722,6 @@ static __poll_t ffs_ep0_poll(struct file *file, poll_table *wait) } static const struct file_operations ffs_ep0_operations = { - .llseek = no_llseek, .open = ffs_ep0_open, .write = ffs_ep0_write, @@ -852,6 +854,7 @@ static void ffs_user_copy_worker(struct work_struct *work) work); int ret = io_data->status; bool kiocb_has_eventfd = io_data->kiocb->ki_flags & IOCB_EVENTFD; + unsigned long flags; if (io_data->read && ret > 0) { kthread_use_mm(io_data->mm); @@ -864,6 +867,11 @@ static void ffs_user_copy_worker(struct work_struct *work) if (io_data->ffs->ffs_eventfd && !kiocb_has_eventfd) eventfd_signal(io_data->ffs->ffs_eventfd); + spin_lock_irqsave(&io_data->ffs->eps_lock, flags); + usb_ep_free_request(io_data->ep, io_data->req); + io_data->req = NULL; + spin_unlock_irqrestore(&io_data->ffs->eps_lock, flags); + if (io_data->read) kfree(io_data->to_free); ffs_free_buffer(io_data); @@ -877,7 +885,6 @@ static void ffs_epfile_async_io_complete(struct usb_ep *_ep, struct ffs_data *ffs = io_data->ffs; io_data->status = req->status ? req->status : req->actual; - usb_ep_free_request(_ep, req); INIT_WORK(&io_data->work, ffs_user_copy_worker); queue_work(ffs->io_completion_wq, &io_data->work); @@ -1822,7 +1829,6 @@ static long ffs_epfile_ioctl(struct file *file, unsigned code, } static const struct file_operations ffs_epfile_operations = { - .llseek = no_llseek, .open = ffs_epfile_open, .write_iter = ffs_epfile_write_iter, @@ -2279,7 +2285,7 @@ static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev) struct usb_gadget_strings **lang; int first_id; - if (WARN_ON(ffs->state != FFS_ACTIVE + if ((ffs->state != FFS_ACTIVE || test_and_set_bit(FFS_FL_BOUND, &ffs->flags))) return -EBADFD; @@ -2470,7 +2476,7 @@ typedef int (*ffs_os_desc_callback)(enum ffs_os_desc_type entity, static int __must_check ffs_do_single_desc(char *data, unsigned len, ffs_entity_callback entity, - void *priv, int *current_class) + void *priv, int *current_class, int *current_subclass) { struct usb_descriptor_header *_ds = (void *)data; u8 length; @@ -2527,6 +2533,7 @@ static int __must_check ffs_do_single_desc(char *data, unsigned len, if (ds->iInterface) __entity(STRING, ds->iInterface); *current_class = ds->bInterfaceClass; + *current_subclass = ds->bInterfaceSubClass; } break; @@ -2551,6 +2558,12 @@ static int __must_check ffs_do_single_desc(char *data, unsigned len, if (length != sizeof(struct ccid_descriptor)) goto inv_length; break; + } else if (*current_class == USB_CLASS_APP_SPEC && + *current_subclass == USB_SUBCLASS_DFU) { + pr_vdebug("dfu functional descriptor\n"); + if (length != sizeof(struct usb_dfu_functional_descriptor)) + goto inv_length; + break; } else { pr_vdebug("unknown descriptor: %d for class %d\n", _ds->bDescriptorType, *current_class); @@ -2613,6 +2626,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len, const unsigned _len = len; unsigned long num = 0; int current_class = -1; + int current_subclass = -1; for (;;) { int ret; @@ -2632,7 +2646,7 @@ static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len, return _len - len; ret = ffs_do_single_desc(data, len, entity, priv, - ¤t_class); + ¤t_class, ¤t_subclass); if (ret < 0) { pr_debug("%s returns %d\n", __func__, ret); return ret; @@ -3707,6 +3721,15 @@ static void ffs_reset_work(struct work_struct *work) ffs_data_reset(ffs); } +static int ffs_func_get_alt(struct usb_function *f, + unsigned int interface) +{ + struct ffs_function *func = ffs_func_from_usb(f); + int intf = ffs_func_revmap_intf(func, interface); + + return (intf < 0) ? intf : func->cur_alt[interface]; +} + static int ffs_func_set_alt(struct usb_function *f, unsigned interface, unsigned alt) { @@ -3714,11 +3737,12 @@ static int ffs_func_set_alt(struct usb_function *f, struct ffs_data *ffs = func->ffs; int ret = 0, intf; - if (alt != (unsigned)-1) { - intf = ffs_func_revmap_intf(func, interface); - if (intf < 0) - return intf; - } + if (alt > MAX_ALT_SETTINGS) + return -EINVAL; + + intf = ffs_func_revmap_intf(func, interface); + if (intf < 0) + return intf; if (ffs->func) ffs_func_eps_disable(ffs->func); @@ -3733,22 +3757,34 @@ static int ffs_func_set_alt(struct usb_function *f, if (ffs->state != FFS_ACTIVE) return -ENODEV; - if (alt == (unsigned)-1) { - ffs->func = NULL; - ffs_event_add(ffs, FUNCTIONFS_DISABLE); - return 0; - } - ffs->func = func; ret = ffs_func_eps_enable(func); - if (ret >= 0) + if (ret >= 0) { ffs_event_add(ffs, FUNCTIONFS_ENABLE); + func->cur_alt[interface] = alt; + } return ret; } static void ffs_func_disable(struct usb_function *f) { - ffs_func_set_alt(f, 0, (unsigned)-1); + struct ffs_function *func = ffs_func_from_usb(f); + struct ffs_data *ffs = func->ffs; + + if (ffs->func) + ffs_func_eps_disable(ffs->func); + + if (ffs->state == FFS_DEACTIVATED) { + ffs->state = FFS_CLOSING; + INIT_WORK(&ffs->reset_work, ffs_reset_work); + schedule_work(&ffs->reset_work); + return; + } + + if (ffs->state == FFS_ACTIVE) { + ffs->func = NULL; + ffs_event_add(ffs, FUNCTIONFS_DISABLE); + } } static int ffs_func_setup(struct usb_function *f, @@ -3806,7 +3842,7 @@ static int ffs_func_setup(struct usb_function *f, __ffs_event_add(ffs, FUNCTIONFS_SETUP); spin_unlock_irqrestore(&ffs->ev.waitq.lock, flags); - return creq->wLength == 0 ? USB_GADGET_DELAYED_STATUS : 0; + return ffs->ev.setup.wLength == 0 ? USB_GADGET_DELAYED_STATUS : 0; } static bool ffs_func_req_match(struct usb_function *f, @@ -4069,6 +4105,7 @@ static struct usb_function *ffs_alloc(struct usb_function_instance *fi) func->function.bind = ffs_func_bind; func->function.unbind = ffs_func_unbind; func->function.set_alt = ffs_func_set_alt; + func->function.get_alt = ffs_func_get_alt; func->function.disable = ffs_func_disable; func->function.setup = ffs_func_setup; func->function.req_match = ffs_func_req_match; @@ -4293,5 +4330,6 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len) } DECLARE_USB_FUNCTION_INIT(ffs, ffs_alloc_inst, ffs_alloc); +MODULE_DESCRIPTION("user mode file system API for USB composite function controllers"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Michal Nazarewicz"); diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c index 3c8a9dd585c0..740311c4fa24 100644 --- a/drivers/usb/gadget/function/f_hid.c +++ b/drivers/usb/gadget/function/f_hid.c @@ -15,13 +15,21 @@ #include <linux/uaccess.h> #include <linux/wait.h> #include <linux/sched.h> +#include <linux/workqueue.h> +#include <linux/usb/func_utils.h> #include <linux/usb/g_hid.h> +#include <uapi/linux/usb/g_hid.h> -#include "u_f.h" #include "u_hid.h" #define HIDG_MINORS 4 +/* + * Most operating systems seem to allow for 5000ms timeout, we will allow + * userspace half that time to respond before we return an empty report. + */ +#define GET_REPORT_TIMEOUT_MS 2500 + static int major, minors; static const struct class hidg_class = { @@ -31,6 +39,11 @@ static const struct class hidg_class = { static DEFINE_IDA(hidg_ida); static DEFINE_MUTEX(hidg_ida_lock); /* protects access to hidg_ida */ +struct report_entry { + struct usb_hidg_report report_data; + struct list_head node; +}; + /*-------------------------------------------------------------------------*/ /* HID gadget struct */ @@ -75,6 +88,19 @@ struct f_hidg { wait_queue_head_t write_queue; struct usb_request *req; + /* get report */ + struct usb_request *get_req; + struct usb_hidg_report get_report; + bool get_report_returned; + int get_report_req_report_id; + int get_report_req_report_length; + spinlock_t get_report_spinlock; + wait_queue_head_t get_queue; /* Waiting for userspace response */ + wait_queue_head_t get_id_queue; /* Get ID came in */ + struct work_struct work; + struct workqueue_struct *workqueue; + struct list_head report_list; + struct device dev; struct cdev cdev; struct usb_function func; @@ -524,6 +550,174 @@ release_write_pending: return status; } +static struct report_entry *f_hidg_search_for_report(struct f_hidg *hidg, u8 report_id) +{ + struct list_head *ptr; + struct report_entry *entry; + + list_for_each(ptr, &hidg->report_list) { + entry = list_entry(ptr, struct report_entry, node); + if (entry->report_data.report_id == report_id) + return entry; + } + + return NULL; +} + +static void get_report_workqueue_handler(struct work_struct *work) +{ + struct f_hidg *hidg = container_of(work, struct f_hidg, work); + struct usb_composite_dev *cdev = hidg->func.config->cdev; + struct usb_request *req; + struct report_entry *ptr; + unsigned long flags; + + int status = 0; + + spin_lock_irqsave(&hidg->get_report_spinlock, flags); + req = hidg->get_req; + if (!req) { + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + return; + } + + req->zero = 0; + req->length = min_t(unsigned int, min_t(unsigned int, hidg->get_report_req_report_length, + hidg->report_length), + MAX_REPORT_LENGTH); + + /* Check if there is a response available for immediate response */ + ptr = f_hidg_search_for_report(hidg, hidg->get_report_req_report_id); + if (ptr && !ptr->report_data.userspace_req) { + /* Report exists in list and it is to be used for immediate response */ + req->buf = ptr->report_data.data; + status = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC); + hidg->get_report_returned = true; + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + } else { + /* + * Report does not exist in list or should not be immediately sent + * i.e. give userspace time to respond + */ + hidg->get_report_returned = false; + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + wake_up(&hidg->get_id_queue); +#define GET_REPORT_COND (!hidg->get_report_returned) + /* Wait until userspace has responded or timeout */ + status = wait_event_interruptible_timeout(hidg->get_queue, !GET_REPORT_COND, + msecs_to_jiffies(GET_REPORT_TIMEOUT_MS)); + spin_lock_irqsave(&hidg->get_report_spinlock, flags); + req = hidg->get_req; + if (!req) { + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + return; + } + if (status == 0 && !hidg->get_report_returned) { + /* GET_REPORT request was not serviced by userspace within timeout period */ + VDBG(cdev, "get_report : userspace timeout.\n"); + hidg->get_report_returned = true; + } + + /* Search again for report ID in list and respond to GET_REPORT request */ + ptr = f_hidg_search_for_report(hidg, hidg->get_report_req_report_id); + if (ptr) { + /* + * Either get an updated response just serviced by userspace + * or send the latest response in the list + */ + req->buf = ptr->report_data.data; + } else { + /* If there are no prevoiusly sent reports send empty report */ + req->buf = hidg->get_report.data; + memset(req->buf, 0x0, req->length); + } + + status = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC); + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + } + + if (status < 0) + VDBG(cdev, "usb_ep_queue error on ep0 responding to GET_REPORT\n"); +} + +static int f_hidg_get_report_id(struct file *file, __u8 __user *buffer) +{ + struct f_hidg *hidg = file->private_data; + int ret = 0; + + ret = put_user(hidg->get_report_req_report_id, buffer); + + return ret; +} + +static int f_hidg_get_report(struct file *file, struct usb_hidg_report __user *buffer) +{ + struct f_hidg *hidg = file->private_data; + struct usb_composite_dev *cdev = hidg->func.config->cdev; + unsigned long flags; + struct report_entry *entry; + struct report_entry *ptr; + __u8 report_id; + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + if (copy_from_user(&entry->report_data, buffer, + sizeof(struct usb_hidg_report))) { + ERROR(cdev, "copy_from_user error\n"); + kfree(entry); + return -EINVAL; + } + + report_id = entry->report_data.report_id; + + spin_lock_irqsave(&hidg->get_report_spinlock, flags); + ptr = f_hidg_search_for_report(hidg, report_id); + + if (ptr) { + /* Report already exists in list - update it */ + if (copy_from_user(&ptr->report_data, buffer, + sizeof(struct usb_hidg_report))) { + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + ERROR(cdev, "copy_from_user error\n"); + kfree(entry); + return -EINVAL; + } + kfree(entry); + } else { + /* Report does not exist in list - add it */ + list_add_tail(&entry->node, &hidg->report_list); + } + + /* If there is no response pending then do nothing further */ + if (hidg->get_report_returned) { + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + return 0; + } + + /* If this userspace response serves the current pending report */ + if (hidg->get_report_req_report_id == report_id) { + hidg->get_report_returned = true; + wake_up(&hidg->get_queue); + } + + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + return 0; +} + +static long f_hidg_ioctl(struct file *file, unsigned int code, unsigned long arg) +{ + switch (code) { + case GADGET_HID_READ_GET_REPORT_ID: + return f_hidg_get_report_id(file, (__u8 __user *)arg); + case GADGET_HID_WRITE_GET_REPORT: + return f_hidg_get_report(file, (struct usb_hidg_report __user *)arg); + default: + return -ENOTTY; + } +} + static __poll_t f_hidg_poll(struct file *file, poll_table *wait) { struct f_hidg *hidg = file->private_data; @@ -531,6 +725,8 @@ static __poll_t f_hidg_poll(struct file *file, poll_table *wait) poll_wait(file, &hidg->read_queue, wait); poll_wait(file, &hidg->write_queue, wait); + poll_wait(file, &hidg->get_queue, wait); + poll_wait(file, &hidg->get_id_queue, wait); if (WRITE_COND) ret |= EPOLLOUT | EPOLLWRNORM; @@ -543,12 +739,16 @@ static __poll_t f_hidg_poll(struct file *file, poll_table *wait) ret |= EPOLLIN | EPOLLRDNORM; } + if (GET_REPORT_COND) + ret |= EPOLLPRI; + return ret; } #undef WRITE_COND #undef READ_COND_SSREPORT #undef READ_COND_INTOUT +#undef GET_REPORT_COND static int f_hidg_release(struct inode *inode, struct file *fd) { @@ -641,6 +841,10 @@ static void hidg_ssreport_complete(struct usb_ep *ep, struct usb_request *req) wake_up(&hidg->read_queue); } +static void hidg_get_report_complete(struct usb_ep *ep, struct usb_request *req) +{ +} + static int hidg_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) { @@ -649,6 +853,7 @@ static int hidg_setup(struct usb_function *f, struct usb_request *req = cdev->req; int status = 0; __u16 value, length; + unsigned long flags; value = __le16_to_cpu(ctrl->wValue); length = __le16_to_cpu(ctrl->wLength); @@ -660,14 +865,20 @@ static int hidg_setup(struct usb_function *f, switch ((ctrl->bRequestType << 8) | ctrl->bRequest) { case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8 | HID_REQ_GET_REPORT): - VDBG(cdev, "get_report\n"); + VDBG(cdev, "get_report | wLength=%d\n", ctrl->wLength); - /* send an empty report */ - length = min_t(unsigned, length, hidg->report_length); - memset(req->buf, 0x0, length); + /* + * Update GET_REPORT ID so that an ioctl can be used to determine what + * GET_REPORT the request was actually for. + */ + spin_lock_irqsave(&hidg->get_report_spinlock, flags); + hidg->get_report_req_report_id = value & 0xff; + hidg->get_report_req_report_length = length; + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); - goto respond; - break; + queue_work(hidg->workqueue, &hidg->work); + + return status; case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8 | HID_REQ_GET_PROTOCOL): @@ -793,6 +1004,14 @@ static void hidg_disable(struct usb_function *f) spin_unlock_irqrestore(&hidg->read_spinlock, flags); } + spin_lock_irqsave(&hidg->get_report_spinlock, flags); + if (!hidg->get_report_returned) { + usb_ep_free_request(f->config->cdev->gadget->ep0, hidg->get_req); + hidg->get_req = NULL; + hidg->get_report_returned = true; + } + spin_unlock_irqrestore(&hidg->get_report_spinlock, flags); + spin_lock_irqsave(&hidg->write_spinlock, flags); if (!hidg->write_pending) { free_ep_req(hidg->in_ep, hidg->req); @@ -902,6 +1121,14 @@ fail: return status; } +#ifdef CONFIG_COMPAT +static long f_hidg_compat_ioctl(struct file *file, unsigned int code, + unsigned long value) +{ + return f_hidg_ioctl(file, code, value); +} +#endif + static const struct file_operations f_hidg_fops = { .owner = THIS_MODULE, .open = f_hidg_open, @@ -909,6 +1136,10 @@ static const struct file_operations f_hidg_fops = { .write = f_hidg_write, .read = f_hidg_read, .poll = f_hidg_poll, + .unlocked_ioctl = f_hidg_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = f_hidg_compat_ioctl, +#endif .llseek = noop_llseek, }; @@ -919,6 +1150,15 @@ static int hidg_bind(struct usb_configuration *c, struct usb_function *f) struct usb_string *us; int status; + hidg->get_req = usb_ep_alloc_request(c->cdev->gadget->ep0, GFP_ATOMIC); + if (!hidg->get_req) + return -ENOMEM; + + hidg->get_req->zero = 0; + hidg->get_req->complete = hidg_get_report_complete; + hidg->get_req->context = hidg; + hidg->get_report_returned = true; + /* maybe allocate device-global string IDs, and patch descriptors */ us = usb_gstrings_attach(c->cdev, ct_func_strings, ARRAY_SIZE(ct_func_string_defs)); @@ -1004,9 +1244,24 @@ static int hidg_bind(struct usb_configuration *c, struct usb_function *f) hidg->write_pending = 1; hidg->req = NULL; spin_lock_init(&hidg->read_spinlock); + spin_lock_init(&hidg->get_report_spinlock); init_waitqueue_head(&hidg->write_queue); init_waitqueue_head(&hidg->read_queue); + init_waitqueue_head(&hidg->get_queue); + init_waitqueue_head(&hidg->get_id_queue); INIT_LIST_HEAD(&hidg->completed_out_req); + INIT_LIST_HEAD(&hidg->report_list); + + INIT_WORK(&hidg->work, get_report_workqueue_handler); + hidg->workqueue = alloc_workqueue("report_work", + WQ_FREEZABLE | + WQ_MEM_RECLAIM, + 1); + + if (!hidg->workqueue) { + status = -ENOMEM; + goto fail; + } /* create char device */ cdev_init(&hidg->cdev, &f_hidg_fops); @@ -1016,12 +1271,16 @@ static int hidg_bind(struct usb_configuration *c, struct usb_function *f) return 0; fail_free_descs: + destroy_workqueue(hidg->workqueue); usb_free_all_descriptors(f); fail: ERROR(f->config->cdev, "hidg_bind FAILED\n"); if (hidg->req != NULL) free_ep_req(hidg->in_ep, hidg->req); + usb_ep_free_request(c->cdev->gadget->ep0, hidg->get_req); + hidg->get_req = NULL; + return status; } @@ -1029,9 +1288,9 @@ static inline int hidg_get_minor(void) { int ret; - ret = ida_simple_get(&hidg_ida, 0, 0, GFP_KERNEL); + ret = ida_alloc(&hidg_ida, GFP_KERNEL); if (ret >= HIDG_MINORS) { - ida_simple_remove(&hidg_ida, ret); + ida_free(&hidg_ida, ret); ret = -ENODEV; } @@ -1176,7 +1435,7 @@ static const struct config_item_type hid_func_type = { static inline void hidg_put_minor(int minor) { - ida_simple_remove(&hidg_ida, minor); + ida_free(&hidg_ida, minor); } static void hidg_free_inst(struct usb_function_instance *f) @@ -1256,7 +1515,7 @@ static void hidg_unbind(struct usb_configuration *c, struct usb_function *f) struct f_hidg *hidg = func_to_hidg(f); cdev_device_del(&hidg->cdev, &hidg->dev); - + destroy_workqueue(hidg->workqueue); usb_free_all_descriptors(f); } @@ -1322,6 +1581,7 @@ err_unlock: } DECLARE_USB_FUNCTION_INIT(hid, hidg_alloc_inst, hidg_alloc); +MODULE_DESCRIPTION("USB HID function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Fabien Chouteau"); diff --git a/drivers/usb/gadget/function/f_loopback.c b/drivers/usb/gadget/function/f_loopback.c index 17ac6ace0cff..49b009a7d5d7 100644 --- a/drivers/usb/gadget/function/f_loopback.c +++ b/drivers/usb/gadget/function/f_loopback.c @@ -14,9 +14,9 @@ #include <linux/module.h> #include <linux/err.h> #include <linux/usb/composite.h> +#include <linux/usb/func_utils.h> #include "g_zero.h" -#include "u_f.h" /* * LOOPBACK FUNCTION ... a testing vehicle for USB peripherals, @@ -593,4 +593,5 @@ void __exit lb_modexit(void) usb_function_unregister(&Loopbackusb_func); } +MODULE_DESCRIPTION("USB peripheral loopback configuration driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index c265a1f62fc1..94d478b6bcd3 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -188,7 +188,7 @@ #include <linux/freezer.h> #include <linux/module.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -500,7 +500,7 @@ static int fsg_setup(struct usb_function *f, *(u8 *)req->buf = _fsg_common_get_max_lun(fsg->common); /* Respond with data/status */ - req->length = min((u16)1, w_length); + req->length = min_t(u16, 1, w_length); return ep0_queue(fsg->common); } @@ -655,7 +655,7 @@ static int do_read(struct fsg_common *common) * And don't try to read past the end of the file. */ amount = min(amount_left, FSG_BUFLEN); - amount = min((loff_t)amount, + amount = min_t(loff_t, amount, curlun->file_length - file_offset); /* Wait for the next buffer to become available */ @@ -1005,7 +1005,7 @@ static int do_verify(struct fsg_common *common) * And don't try to read past the end of the file. */ amount = min(amount_left, FSG_BUFLEN); - amount = min((loff_t)amount, + amount = min_t(loff_t, amount, curlun->file_length - file_offset); if (amount == 0) { curlun->sense_data = @@ -2142,8 +2142,8 @@ static int do_scsi_command(struct fsg_common *common) * of Posix locks. */ case FORMAT_UNIT: - case RELEASE: - case RESERVE: + case RELEASE_6: + case RESERVE_6: case SEND_DIAGNOSTIC: default: @@ -2167,7 +2167,7 @@ unknown_cmnd: if (reply == -EINVAL) reply = 0; /* Error reply length */ if (reply >= 0 && common->data_dir == DATA_DIR_TO_HOST) { - reply = min((u32)reply, common->data_size_from_cmnd); + reply = min_t(u32, reply, common->data_size_from_cmnd); bh->inreq->length = reply; bh->state = BUF_STATE_FULL; common->residue -= reply; @@ -3050,7 +3050,7 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) if (!common->thread_task) { common->state = FSG_STATE_NORMAL; common->thread_task = - kthread_create(fsg_main_thread, common, "file-storage"); + kthread_run(fsg_main_thread, common, "file-storage"); if (IS_ERR(common->thread_task)) { ret = PTR_ERR(common->thread_task); common->thread_task = NULL; @@ -3059,7 +3059,6 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) } DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task)); - wake_up_process(common->thread_task); } fsg->gadget = gadget; @@ -3577,6 +3576,7 @@ static struct usb_function *fsg_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(mass_storage, fsg_alloc_inst, fsg_alloc); +MODULE_DESCRIPTION("Mass Storage USB Composite Function"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Michal Nazarewicz"); diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 20c6fbd94f32..da82598fcef8 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -30,14 +30,15 @@ #include <sound/rawmidi.h> #include <linux/usb/ch9.h> +#include <linux/usb/func_utils.h> #include <linux/usb/gadget.h> #include <linux/usb/audio.h> #include <linux/usb/midi.h> -#include "u_f.h" #include "u_midi.h" MODULE_AUTHOR("Ben Williamson"); +MODULE_DESCRIPTION("USB MIDI class function driver"); MODULE_LICENSE("GPL v2"); static const char f_midi_shortname[] = "f_midi"; @@ -282,7 +283,7 @@ f_midi_complete(struct usb_ep *ep, struct usb_request *req) /* Our transmit completed. See if there's more to go. * f_midi_transmit eats req, don't queue it again. */ req->length = 0; - f_midi_transmit(midi); + queue_work(system_highpri_wq, &midi->work); return; } break; @@ -818,9 +819,9 @@ static int f_midi_register_card(struct f_midi *midi) goto fail; } - strcpy(card->driver, f_midi_longname); - strcpy(card->longname, f_midi_longname); - strcpy(card->shortname, f_midi_shortname); + strscpy(card->driver, f_midi_longname); + strscpy(card->longname, f_midi_longname); + strscpy(card->shortname, f_midi_shortname); /* Set up rawmidi */ snd_component_add(card, "MIDI"); @@ -832,7 +833,7 @@ static int f_midi_register_card(struct f_midi *midi) } midi->rmidi = rmidi; midi->in_last_port = 0; - strcpy(rmidi->name, card->shortname); + strscpy(rmidi->name, card->shortname); rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; @@ -906,6 +907,15 @@ static int f_midi_bind(struct usb_configuration *c, struct usb_function *f) status = -ENODEV; + /* + * Reset wMaxPacketSize with maximum packet size of FS bulk transfer before + * endpoint claim. This ensures that the wMaxPacketSize does not exceed the + * limit during bind retries where configured dwc3 TX/RX FIFO's maxpacket + * size of 512 bytes for IN/OUT endpoints in support HS speed only. + */ + bulk_in_desc.wMaxPacketSize = cpu_to_le16(64); + bulk_out_desc.wMaxPacketSize = cpu_to_le16(64); + /* allocate instance-specific endpoints */ midi->in_ep = usb_ep_autoconfig(cdev->gadget, &bulk_in_desc); if (!midi->in_ep) @@ -999,11 +1009,11 @@ static int f_midi_bind(struct usb_configuration *c, struct usb_function *f) } /* configure the endpoint descriptors ... */ - ms_out_desc.bLength = USB_DT_MS_ENDPOINT_SIZE(midi->in_ports); - ms_out_desc.bNumEmbMIDIJack = midi->in_ports; + ms_out_desc.bLength = USB_DT_MS_ENDPOINT_SIZE(midi->out_ports); + ms_out_desc.bNumEmbMIDIJack = midi->out_ports; - ms_in_desc.bLength = USB_DT_MS_ENDPOINT_SIZE(midi->out_ports); - ms_in_desc.bNumEmbMIDIJack = midi->out_ports; + ms_in_desc.bLength = USB_DT_MS_ENDPOINT_SIZE(midi->in_ports); + ms_in_desc.bNumEmbMIDIJack = midi->in_ports; /* ... and add them to the list */ endpoint_descriptor_index = i; diff --git a/drivers/usb/gadget/function/f_midi2.c b/drivers/usb/gadget/function/f_midi2.c index ec8cd7c7bbfc..0a800ba53816 100644 --- a/drivers/usb/gadget/function/f_midi2.c +++ b/drivers/usb/gadget/function/f_midi2.c @@ -15,11 +15,11 @@ #include <sound/ump_convert.h> #include <linux/usb/ch9.h> +#include <linux/usb/func_utils.h> #include <linux/usb/gadget.h> #include <linux/usb/audio.h> #include <linux/usb/midi-v2.h> -#include "u_f.h" #include "u_midi2.h" struct f_midi2; @@ -150,6 +150,9 @@ struct f_midi2 { #define func_to_midi2(f) container_of(f, struct f_midi2, func) +/* convert from MIDI protocol number (1 or 2) to SNDRV_UMP_EP_INFO_PROTO_* */ +#define to_ump_protocol(v) (((v) & 3) << 8) + /* get EP name string */ static const char *ump_ep_name(const struct f_midi2_ep *ep) { @@ -472,7 +475,7 @@ static void reply_ump_stream_ep_info(struct f_midi2_ep *ep) /* reply a UMP EP device info */ static void reply_ump_stream_ep_device(struct f_midi2_ep *ep) { - struct snd_ump_stream_msg_devince_info rep = { + struct snd_ump_stream_msg_device_info rep = { .type = UMP_MSG_TYPE_STREAM, .status = UMP_STREAM_MSG_STATUS_DEVICE_INFO, .manufacture_id = ep->info.manufacturer, @@ -564,8 +567,7 @@ static void reply_ump_stream_ep_config(struct f_midi2_ep *ep) .status = UMP_STREAM_MSG_STATUS_STREAM_CFG, }; - if ((ep->info.protocol & SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK) == - SNDRV_UMP_EP_INFO_PROTO_MIDI2) + if (ep->info.protocol == 2) rep.protocol = UMP_STREAM_MSG_EP_INFO_CAP_MIDI2 >> 8; else rep.protocol = UMP_STREAM_MSG_EP_INFO_CAP_MIDI1 >> 8; @@ -627,25 +629,34 @@ static void process_ump_stream_msg(struct f_midi2_ep *ep, const u32 *data) return; case UMP_STREAM_MSG_STATUS_STREAM_CFG_REQUEST: if (*data & UMP_STREAM_MSG_EP_INFO_CAP_MIDI2) { - ep->info.protocol = SNDRV_UMP_EP_INFO_PROTO_MIDI2; + ep->info.protocol = 2; DBG(midi2, "Switching Protocol to MIDI2\n"); } else { - ep->info.protocol = SNDRV_UMP_EP_INFO_PROTO_MIDI1; + ep->info.protocol = 1; DBG(midi2, "Switching Protocol to MIDI1\n"); } - snd_ump_switch_protocol(ep->ump, ep->info.protocol); + snd_ump_switch_protocol(ep->ump, to_ump_protocol(ep->info.protocol)); reply_ump_stream_ep_config(ep); return; case UMP_STREAM_MSG_STATUS_FB_DISCOVERY: if (format) return; // invalid blk = (*data >> 8) & 0xff; - if (blk >= ep->num_blks) - return; - if (*data & UMP_STREAM_MSG_REQUEST_FB_INFO) - reply_ump_stream_fb_info(ep, blk); - if (*data & UMP_STREAM_MSG_REQUEST_FB_NAME) - reply_ump_stream_fb_name(ep, blk); + if (blk == 0xff) { + /* inquiry for all blocks */ + for (blk = 0; blk < ep->num_blks; blk++) { + if (*data & UMP_STREAM_MSG_REQUEST_FB_INFO) + reply_ump_stream_fb_info(ep, blk); + if (*data & UMP_STREAM_MSG_REQUEST_FB_NAME) + reply_ump_stream_fb_name(ep, blk); + } + } else if (blk < ep->num_blks) { + /* only the specified block */ + if (*data & UMP_STREAM_MSG_REQUEST_FB_INFO) + reply_ump_stream_fb_info(ep, blk); + if (*data & UMP_STREAM_MSG_REQUEST_FB_NAME) + reply_ump_stream_fb_name(ep, blk); + } return; } } @@ -1065,7 +1076,8 @@ static void f_midi2_midi1_ep_out_complete(struct usb_ep *usb_ep, group = midi2->out_cable_mapping[cable].group; bytes = midi1_packet_bytes[*buf & 0x0f]; for (c = 0; c < bytes; c++) { - snd_ump_convert_to_ump(cvt, group, ep->info.protocol, + snd_ump_convert_to_ump(cvt, group, + to_ump_protocol(ep->info.protocol), buf[c + 1]); if (cvt->ump_bytes) { snd_ump_receive(ep->ump, cvt->ump, @@ -1273,10 +1285,8 @@ static int f_midi2_set_alt(struct usb_function *fn, unsigned int intf, if (alt == 0) op_mode = MIDI_OP_MODE_MIDI1; - else if (alt == 1) - op_mode = MIDI_OP_MODE_MIDI2; else - op_mode = MIDI_OP_MODE_UNSET; + op_mode = MIDI_OP_MODE_MIDI2; if (midi2->operation_mode == op_mode) return 0; @@ -1375,7 +1385,7 @@ static void assign_block_descriptors(struct f_midi2 *midi2, desc->nNumGroupTrm = b->num_groups; desc->iBlockItem = ep->blks[blk].string_id; - if (ep->info.protocol & SNDRV_UMP_EP_INFO_PROTO_MIDI2) + if (ep->info.protocol == 2) desc->bMIDIProtocol = USB_MS_MIDI_PROTO_2_0; else desc->bMIDIProtocol = USB_MS_MIDI_PROTO_1_0_128; @@ -1552,7 +1562,7 @@ static int f_midi2_create_card(struct f_midi2 *midi2) if (midi2->info.static_block) ump->info.flags |= SNDRV_UMP_EP_INFO_STATIC_BLOCKS; ump->info.protocol_caps = (ep->info.protocol_caps & 3) << 8; - ump->info.protocol = (ep->info.protocol & 3) << 8; + ump->info.protocol = to_ump_protocol(ep->info.protocol); ump->info.version = 0x0101; ump->info.family_id = ep->info.family; ump->info.model_id = ep->info.model; @@ -1581,7 +1591,11 @@ static int f_midi2_create_card(struct f_midi2 *midi2) fb->info.midi_ci_version = b->midi_ci_version; fb->info.ui_hint = reverse_dir(b->ui_hint); fb->info.sysex8_streams = b->sysex8_streams; - fb->info.flags |= b->is_midi1; + if (b->is_midi1 < 2) + fb->info.flags |= b->is_midi1; + else + fb->info.flags |= SNDRV_UMP_BLOCK_IS_MIDI1 | + SNDRV_UMP_BLOCK_IS_LOWSPEED; strscpy(fb->info.name, ump_fb_name(b), sizeof(fb->info.name)); } @@ -2868,4 +2882,5 @@ static struct usb_function *f_midi2_alloc(struct usb_function_instance *fi) DECLARE_USB_FUNCTION_INIT(midi2, f_midi2_alloc_inst, f_midi2_alloc); +MODULE_DESCRIPTION("USB MIDI 2.0 class function driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c index 0acc32ed9960..58b0dd575af3 100644 --- a/drivers/usb/gadget/function/f_ncm.c +++ b/drivers/usb/gadget/function/f_ncm.c @@ -17,6 +17,7 @@ #include <linux/device.h> #include <linux/etherdevice.h> #include <linux/crc32.h> +#include <linux/string_choices.h> #include <linux/usb/cdc.h> @@ -558,7 +559,7 @@ static void ncm_do_notify(struct f_ncm *ncm) req->length = sizeof *event; DBG(cdev, "notify connect %s\n", - ncm->is_open ? "true" : "false"); + str_true_false(ncm->is_open)); ncm->notify_state = NCM_NOTIFY_NONE; break; @@ -1558,8 +1559,7 @@ static int ncm_bind(struct usb_configuration *c, struct usb_function *f) ncm->port.open = ncm_open; ncm->port.close = ncm_close; - hrtimer_init(&ncm->task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); - ncm->task_timer.function = ncm_tx_timeout; + hrtimer_setup(&ncm->task_timer, ncm_tx_timeout, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); DBG(cdev, "CDC Network: IN/%s OUT/%s NOTIFY/%s\n", ncm->port.in_ep->name, ncm->port.out_ep->name, @@ -1797,5 +1797,6 @@ static struct usb_function *ncm_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(ncm, ncm_alloc_inst, ncm_alloc); +MODULE_DESCRIPTION("USB CDC Network (NCM) link function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Yauheni Kaliuta"); diff --git a/drivers/usb/gadget/function/f_obex.c b/drivers/usb/gadget/function/f_obex.c index dcb093210305..1305e2326cdf 100644 --- a/drivers/usb/gadget/function/f_obex.c +++ b/drivers/usb/gadget/function/f_obex.c @@ -487,4 +487,5 @@ static struct usb_function *obex_alloc(struct usb_function_instance *fi) DECLARE_USB_FUNCTION_INIT(obex, obex_alloc_inst, obex_alloc); MODULE_AUTHOR("Felipe Balbi"); +MODULE_DESCRIPTION("USB CDC OBEX function driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/f_phonet.c b/drivers/usb/gadget/function/f_phonet.c index 0bebbdf3f213..0aa9e8224cae 100644 --- a/drivers/usb/gadget/function/f_phonet.c +++ b/drivers/usb/gadget/function/f_phonet.c @@ -729,4 +729,5 @@ void gphonet_cleanup(struct net_device *dev) DECLARE_USB_FUNCTION_INIT(phonet, phonet_alloc_inst, phonet_alloc); MODULE_AUTHOR("Rémi Denis-Courmont"); +MODULE_DESCRIPTION("USB CDC Phonet function"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c index 076dd4c1be96..d295ade8fa67 100644 --- a/drivers/usb/gadget/function/f_printer.c +++ b/drivers/usb/gadget/function/f_printer.c @@ -37,7 +37,7 @@ #include <linux/io.h> #include <linux/irq.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb/ch9.h> #include <linux/usb/composite.h> @@ -213,6 +213,7 @@ static inline struct usb_endpoint_descriptor *ep_desc(struct usb_gadget *gadget, struct usb_endpoint_descriptor *ss) { switch (gadget->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: return ss; case USB_SPEED_HIGH: @@ -449,11 +450,8 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) mutex_lock(&dev->lock_printer_io); spin_lock_irqsave(&dev->lock, flags); - if (dev->interface < 0) { - spin_unlock_irqrestore(&dev->lock, flags); - mutex_unlock(&dev->lock_printer_io); - return -ENODEV; - } + if (dev->interface < 0) + goto out_disabled; /* We will use this flag later to check if a printer reset happened * after we turn interrupts back on. @@ -461,6 +459,9 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) dev->reset_printer = 0; setup_rx_reqs(dev); + /* this dropped the lock - need to retest */ + if (dev->interface < 0) + goto out_disabled; bytes_copied = 0; current_rx_req = dev->current_rx_req; @@ -494,6 +495,8 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) wait_event_interruptible(dev->rx_wait, (likely(!list_empty(&dev->rx_buffers)))); spin_lock_irqsave(&dev->lock, flags); + if (dev->interface < 0) + goto out_disabled; } /* We have data to return then copy it to the caller's buffer.*/ @@ -537,6 +540,9 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) return -EAGAIN; } + if (dev->interface < 0) + goto out_disabled; + /* If we not returning all the data left in this RX request * buffer then adjust the amount of data left in the buffer. * Othewise if we are done with this RX request buffer then @@ -566,6 +572,11 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) return bytes_copied; else return -EAGAIN; + +out_disabled: + spin_unlock_irqrestore(&dev->lock, flags); + mutex_unlock(&dev->lock_printer_io); + return -ENODEV; } static ssize_t @@ -586,11 +597,8 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) mutex_lock(&dev->lock_printer_io); spin_lock_irqsave(&dev->lock, flags); - if (dev->interface < 0) { - spin_unlock_irqrestore(&dev->lock, flags); - mutex_unlock(&dev->lock_printer_io); - return -ENODEV; - } + if (dev->interface < 0) + goto out_disabled; /* Check if a printer reset happens while we have interrupts on */ dev->reset_printer = 0; @@ -613,6 +621,8 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) wait_event_interruptible(dev->tx_wait, (likely(!list_empty(&dev->tx_reqs)))); spin_lock_irqsave(&dev->lock, flags); + if (dev->interface < 0) + goto out_disabled; } while (likely(!list_empty(&dev->tx_reqs)) && len) { @@ -662,6 +672,9 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) return -EAGAIN; } + if (dev->interface < 0) + goto out_disabled; + list_add(&req->list, &dev->tx_reqs_active); /* here, we unlock, and only unlock, to avoid deadlock. */ @@ -674,6 +687,8 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) mutex_unlock(&dev->lock_printer_io); return -EAGAIN; } + if (dev->interface < 0) + goto out_disabled; } spin_unlock_irqrestore(&dev->lock, flags); @@ -685,6 +700,11 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) return bytes_copied; else return -EAGAIN; + +out_disabled: + spin_unlock_irqrestore(&dev->lock, flags); + mutex_unlock(&dev->lock_printer_io); + return -ENODEV; } static int @@ -1312,9 +1332,9 @@ static inline int gprinter_get_minor(void) { int ret; - ret = ida_simple_get(&printer_ida, 0, 0, GFP_KERNEL); + ret = ida_alloc(&printer_ida, GFP_KERNEL); if (ret >= PRINTER_MINORS) { - ida_simple_remove(&printer_ida, ret); + ida_free(&printer_ida, ret); ret = -ENODEV; } @@ -1323,7 +1343,7 @@ static inline int gprinter_get_minor(void) static inline void gprinter_put_minor(int minor) { - ida_simple_remove(&printer_ida, minor); + ida_free(&printer_ida, minor); } static int gprinter_setup(int); @@ -1507,6 +1527,7 @@ static struct usb_function *gprinter_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(printer, gprinter_alloc_inst, gprinter_alloc); +MODULE_DESCRIPTION("USB printer function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Craig Nadler"); diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c index b47f99d17ee9..7cec19d65fb5 100644 --- a/drivers/usb/gadget/function/f_rndis.c +++ b/drivers/usb/gadget/function/f_rndis.c @@ -1013,5 +1013,6 @@ static struct usb_function *rndis_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(rndis, rndis_alloc_inst, rndis_alloc); +MODULE_DESCRIPTION("RNDIS link function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/function/f_serial.c b/drivers/usb/gadget/function/f_serial.c index 65c50092aea2..8f7e7a2b2ff2 100644 --- a/drivers/usb/gadget/function/f_serial.c +++ b/drivers/usb/gadget/function/f_serial.c @@ -392,6 +392,7 @@ static struct usb_function *gser_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(gser, gser_alloc_inst, gser_alloc); +MODULE_DESCRIPTION("generic USB serial function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Al Borchers"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c index 2edbd9b510d6..ec5fd25020fd 100644 --- a/drivers/usb/gadget/function/f_sourcesink.c +++ b/drivers/usb/gadget/function/f_sourcesink.c @@ -13,10 +13,10 @@ #include <linux/device.h> #include <linux/module.h> #include <linux/usb/composite.h> +#include <linux/usb/func_utils.h> #include <linux/err.h> #include "g_zero.h" -#include "u_f.h" /* * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral @@ -1284,4 +1284,5 @@ static void __exit sslb_modexit(void) module_init(sslb_modinit); module_exit(sslb_modexit); +MODULE_DESCRIPTION("USB peripheral source/sink configuration driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/f_subset.c b/drivers/usb/gadget/function/f_subset.c index 8ae9689ef2a0..ea3fdd842462 100644 --- a/drivers/usb/gadget/function/f_subset.c +++ b/drivers/usb/gadget/function/f_subset.c @@ -500,5 +500,6 @@ static struct usb_function *geth_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(geth, geth_alloc_inst, geth_alloc); +MODULE_DESCRIPTION("\"CDC Subset\" Ethernet link function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index 37befd6db001..5a2e1237f85c 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -12,6 +12,7 @@ #include <linux/string.h> #include <linux/configfs.h> #include <linux/ctype.h> +#include <linux/delay.h> #include <linux/usb/ch9.h> #include <linux/usb/composite.h> #include <linux/usb/gadget.h> @@ -19,7 +20,7 @@ #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "tcm.h" #include "u_tcm.h" @@ -50,7 +51,7 @@ static int bot_enqueue_cmd_cbw(struct f_uas *fu) if (fu->flags & USBG_BOT_CMD_PEND) return 0; - ret = usb_ep_queue(fu->ep_out, fu->cmd.req, GFP_ATOMIC); + ret = usb_ep_queue(fu->ep_out, fu->cmd[0].req, GFP_ATOMIC); if (!ret) fu->flags |= USBG_BOT_CMD_PEND; return ret; @@ -62,10 +63,11 @@ static void bot_status_complete(struct usb_ep *ep, struct usb_request *req) struct f_uas *fu = cmd->fu; transport_generic_free_cmd(&cmd->se_cmd, 0); - if (req->status < 0) { - pr_err("ERR %s(%d)\n", __func__, __LINE__); + if (req->status == -ESHUTDOWN) return; - } + + if (req->status < 0) + pr_err("ERR %s(%d)\n", __func__, __LINE__); /* CSW completed, wait for next CBW */ bot_enqueue_cmd_cbw(fu); @@ -136,7 +138,7 @@ static void bot_send_bad_status(struct usbg_cmd *cmd) } req->complete = bot_err_compl; req->context = cmd; - req->buf = fu->cmd.buf; + req->buf = fu->cmd[0].buf; usb_ep_queue(ep, req, GFP_KERNEL); } else { bot_enqueue_sense_code(fu, cmd); @@ -196,6 +198,11 @@ static void bot_read_compl(struct usb_ep *ep, struct usb_request *req) if (req->status < 0) pr_err("ERR %s(%d)\n", __func__, __LINE__); + if (req->status == -ESHUTDOWN) { + transport_generic_free_cmd(&cmd->se_cmd, 0); + return; + } + bot_send_status(cmd, true); } @@ -244,11 +251,8 @@ static int usbg_prepare_w_request(struct usbg_cmd *, struct usb_request *); static int bot_send_write_request(struct usbg_cmd *cmd) { struct f_uas *fu = cmd->fu; - struct se_cmd *se_cmd = &cmd->se_cmd; - struct usb_gadget *gadget = fuas_to_gadget(fu); int ret; - init_completion(&cmd->write_complete); cmd->fu = fu; if (!cmd->data_len) { @@ -256,22 +260,6 @@ static int bot_send_write_request(struct usbg_cmd *cmd) return -EINVAL; } - if (!gadget->sg_supported) { - cmd->data_buf = kmalloc(se_cmd->data_length, GFP_KERNEL); - if (!cmd->data_buf) - return -ENOMEM; - - fu->bot_req_out->buf = cmd->data_buf; - } else { - fu->bot_req_out->buf = NULL; - fu->bot_req_out->num_sgs = se_cmd->t_data_nents; - fu->bot_req_out->sg = se_cmd->t_data_sg; - } - - fu->bot_req_out->complete = usbg_data_write_cmpl; - fu->bot_req_out->length = se_cmd->data_length; - fu->bot_req_out->context = cmd; - ret = usbg_prepare_w_request(cmd, fu->bot_req_out); if (ret) goto cleanup; @@ -279,8 +267,6 @@ static int bot_send_write_request(struct usbg_cmd *cmd) if (ret) pr_err("%s(%d)\n", __func__, __LINE__); - wait_for_completion(&cmd->write_complete); - target_execute_cmd(se_cmd); cleanup: return ret; } @@ -292,14 +278,31 @@ static void bot_cmd_complete(struct usb_ep *ep, struct usb_request *req) struct f_uas *fu = req->context; int ret; + if (req->status == -ESHUTDOWN) + return; + fu->flags &= ~USBG_BOT_CMD_PEND; - if (req->status < 0) + if (req->status < 0) { + struct usb_gadget *gadget = fuas_to_gadget(fu); + + dev_err(&gadget->dev, "BOT command req err (%d)\n", req->status); + bot_enqueue_cmd_cbw(fu); return; + } ret = bot_submit_command(fu, req->buf, req->actual); - if (ret) + if (ret) { pr_err("%s(%d): %d\n", __func__, __LINE__, ret); + if (!(fu->flags & USBG_BOT_WEDGED)) + usb_ep_set_wedge(fu->ep_in); + + fu->flags |= USBG_BOT_WEDGED; + bot_enqueue_cmd_cbw(fu); + } else if (fu->flags & USBG_BOT_WEDGED) { + fu->flags &= ~USBG_BOT_WEDGED; + usb_ep_clear_halt(fu->ep_in); + } } static int bot_prepare_reqs(struct f_uas *fu) @@ -314,8 +317,8 @@ static int bot_prepare_reqs(struct f_uas *fu) if (!fu->bot_req_out) goto err_out; - fu->cmd.req = usb_ep_alloc_request(fu->ep_out, GFP_KERNEL); - if (!fu->cmd.req) + fu->cmd[0].req = usb_ep_alloc_request(fu->ep_out, GFP_KERNEL); + if (!fu->cmd[0].req) goto err_cmd; fu->bot_status.req = usb_ep_alloc_request(fu->ep_in, GFP_KERNEL); @@ -327,27 +330,27 @@ static int bot_prepare_reqs(struct f_uas *fu) fu->bot_status.req->complete = bot_status_complete; fu->bot_status.csw.Signature = cpu_to_le32(US_BULK_CS_SIGN); - fu->cmd.buf = kmalloc(fu->ep_out->maxpacket, GFP_KERNEL); - if (!fu->cmd.buf) + fu->cmd[0].buf = kmalloc(fu->ep_out->maxpacket, GFP_KERNEL); + if (!fu->cmd[0].buf) goto err_buf; - fu->cmd.req->complete = bot_cmd_complete; - fu->cmd.req->buf = fu->cmd.buf; - fu->cmd.req->length = fu->ep_out->maxpacket; - fu->cmd.req->context = fu; + fu->cmd[0].req->complete = bot_cmd_complete; + fu->cmd[0].req->buf = fu->cmd[0].buf; + fu->cmd[0].req->length = fu->ep_out->maxpacket; + fu->cmd[0].req->context = fu; ret = bot_enqueue_cmd_cbw(fu); if (ret) goto err_queue; return 0; err_queue: - kfree(fu->cmd.buf); - fu->cmd.buf = NULL; + kfree(fu->cmd[0].buf); + fu->cmd[0].buf = NULL; err_buf: usb_ep_free_request(fu->ep_in, fu->bot_status.req); err_sts: - usb_ep_free_request(fu->ep_out, fu->cmd.req); - fu->cmd.req = NULL; + usb_ep_free_request(fu->ep_out, fu->cmd[0].req); + fu->cmd[0].req = NULL; err_cmd: usb_ep_free_request(fu->ep_out, fu->bot_req_out); fu->bot_req_out = NULL; @@ -372,16 +375,16 @@ static void bot_cleanup_old_alt(struct f_uas *fu) usb_ep_free_request(fu->ep_in, fu->bot_req_in); usb_ep_free_request(fu->ep_out, fu->bot_req_out); - usb_ep_free_request(fu->ep_out, fu->cmd.req); + usb_ep_free_request(fu->ep_out, fu->cmd[0].req); usb_ep_free_request(fu->ep_in, fu->bot_status.req); - kfree(fu->cmd.buf); + kfree(fu->cmd[0].buf); fu->bot_req_in = NULL; fu->bot_req_out = NULL; - fu->cmd.req = NULL; + fu->cmd[0].req = NULL; fu->bot_status.req = NULL; - fu->cmd.buf = NULL; + fu->cmd[0].buf = NULL; } static void bot_set_alt(struct f_uas *fu) @@ -441,14 +444,10 @@ static int usbg_bot_setup(struct usb_function *f, pr_err("No LUNs configured?\n"); return -EINVAL; } - /* - * If 4 LUNs are present we return 3 i.e. LUN 0..3 can be - * accessed. The upper limit is 0xf - */ luns--; - if (luns > 0xf) { + if (luns > US_BULK_MAX_LUN_LIMIT) { pr_info_once("Limiting the number of luns to 16\n"); - luns = 0xf; + luns = US_BULK_MAX_LUN_LIMIT; } ret_lun = cdev->req->buf; *ret_lun = luns; @@ -457,6 +456,11 @@ static int usbg_bot_setup(struct usb_function *f, case US_BULK_RESET_REQUEST: /* XXX maybe we should remove previous requests for IN + OUT */ + if (fu->flags & USBG_BOT_WEDGED) { + fu->flags &= ~USBG_BOT_WEDGED; + usb_ep_clear_halt(fu->ep_in); + } + bot_enqueue_cmd_cbw(fu); return 0; } @@ -465,6 +469,45 @@ static int usbg_bot_setup(struct usb_function *f, /* Start uas.c code */ +static int tcm_to_uasp_response(enum tcm_tmrsp_table code) +{ + switch (code) { + case TMR_FUNCTION_FAILED: + return RC_TMF_FAILED; + case TMR_FUNCTION_COMPLETE: + case TMR_TASK_DOES_NOT_EXIST: + return RC_TMF_COMPLETE; + case TMR_LUN_DOES_NOT_EXIST: + return RC_INCORRECT_LUN; + case TMR_FUNCTION_REJECTED: + case TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED: + default: + return RC_TMF_NOT_SUPPORTED; + } +} + +static unsigned char uasp_to_tcm_func(int code) +{ + switch (code) { + case TMF_ABORT_TASK: + return TMR_ABORT_TASK; + case TMF_ABORT_TASK_SET: + return TMR_ABORT_TASK_SET; + case TMF_CLEAR_TASK_SET: + return TMR_CLEAR_TASK_SET; + case TMF_LOGICAL_UNIT_RESET: + return TMR_LUN_RESET; + case TMF_CLEAR_ACA: + return TMR_CLEAR_ACA; + case TMF_I_T_NEXUS_RESET: + case TMF_QUERY_TASK: + case TMF_QUERY_TASK_SET: + case TMF_QUERY_ASYNC_EVENT: + default: + return TMR_UNKNOWN; + } +} + static void uasp_cleanup_one_stream(struct f_uas *fu, struct uas_stream *stream) { /* We have either all three allocated or none */ @@ -482,10 +525,14 @@ static void uasp_cleanup_one_stream(struct f_uas *fu, struct uas_stream *stream) static void uasp_free_cmdreq(struct f_uas *fu) { - usb_ep_free_request(fu->ep_cmd, fu->cmd.req); - kfree(fu->cmd.buf); - fu->cmd.req = NULL; - fu->cmd.buf = NULL; + int i; + + for (i = 0; i < USBG_NUM_CMDS; i++) { + usb_ep_free_request(fu->ep_cmd, fu->cmd[i].req); + kfree(fu->cmd[i].buf); + fu->cmd[i].req = NULL; + fu->cmd[i].buf = NULL; + } } static void uasp_cleanup_old_alt(struct f_uas *fu) @@ -500,7 +547,7 @@ static void uasp_cleanup_old_alt(struct f_uas *fu) usb_ep_disable(fu->ep_status); usb_ep_disable(fu->ep_cmd); - for (i = 0; i < UASP_SS_EP_COMP_NUM_STREAMS; i++) + for (i = 0; i < USBG_NUM_CMDS; i++) uasp_cleanup_one_stream(fu, &fu->stream[i]); uasp_free_cmdreq(fu); } @@ -512,7 +559,7 @@ static int uasp_prepare_r_request(struct usbg_cmd *cmd) struct se_cmd *se_cmd = &cmd->se_cmd; struct f_uas *fu = cmd->fu; struct usb_gadget *gadget = fuas_to_gadget(fu); - struct uas_stream *stream = cmd->stream; + struct uas_stream *stream = &fu->stream[se_cmd->map_tag]; if (!gadget->sg_supported) { cmd->data_buf = kmalloc(se_cmd->data_length, GFP_ATOMIC); @@ -532,6 +579,7 @@ static int uasp_prepare_r_request(struct usbg_cmd *cmd) } stream->req_in->is_last = 1; + stream->req_in->stream_id = cmd->tag; stream->req_in->complete = uasp_status_data_cmpl; stream->req_in->length = se_cmd->data_length; stream->req_in->context = cmd; @@ -544,7 +592,7 @@ static void uasp_prepare_status(struct usbg_cmd *cmd) { struct se_cmd *se_cmd = &cmd->se_cmd; struct sense_iu *iu = &cmd->sense_iu; - struct uas_stream *stream = cmd->stream; + struct uas_stream *stream = &cmd->fu->stream[se_cmd->map_tag]; cmd->state = UASP_QUEUE_COMMAND; iu->iu_id = IU_ID_STATUS; @@ -556,20 +604,76 @@ static void uasp_prepare_status(struct usbg_cmd *cmd) iu->len = cpu_to_be16(se_cmd->scsi_sense_length); iu->status = se_cmd->scsi_status; stream->req_status->is_last = 1; + stream->req_status->stream_id = cmd->tag; stream->req_status->context = cmd; stream->req_status->length = se_cmd->scsi_sense_length + 16; stream->req_status->buf = iu; stream->req_status->complete = uasp_status_data_cmpl; } +static void uasp_prepare_response(struct usbg_cmd *cmd) +{ + struct se_cmd *se_cmd = &cmd->se_cmd; + struct response_iu *rsp_iu = &cmd->response_iu; + struct uas_stream *stream = &cmd->fu->stream[se_cmd->map_tag]; + + cmd->state = UASP_QUEUE_COMMAND; + rsp_iu->iu_id = IU_ID_RESPONSE; + rsp_iu->tag = cpu_to_be16(cmd->tag); + + if (cmd->tmr_rsp != RC_RESPONSE_UNKNOWN) + rsp_iu->response_code = cmd->tmr_rsp; + else + rsp_iu->response_code = + tcm_to_uasp_response(se_cmd->se_tmr_req->response); + + /* + * The UASP driver must support all the task management functions listed + * in Table 20 of UAS-r04. To remain compliant while indicate that the + * TMR did not go through, report RC_TMF_FAILED instead of + * RC_TMF_NOT_SUPPORTED and print a warning to the user. + */ + switch (cmd->tmr_func) { + case TMF_ABORT_TASK: + case TMF_ABORT_TASK_SET: + case TMF_CLEAR_TASK_SET: + case TMF_LOGICAL_UNIT_RESET: + case TMF_CLEAR_ACA: + case TMF_I_T_NEXUS_RESET: + case TMF_QUERY_TASK: + case TMF_QUERY_TASK_SET: + case TMF_QUERY_ASYNC_EVENT: + if (rsp_iu->response_code == RC_TMF_NOT_SUPPORTED) { + struct usb_gadget *gadget = fuas_to_gadget(cmd->fu); + + dev_warn(&gadget->dev, "TMF function %d not supported\n", + cmd->tmr_func); + rsp_iu->response_code = RC_TMF_FAILED; + } + break; + default: + break; + } + + stream->req_status->is_last = 1; + stream->req_status->stream_id = cmd->tag; + stream->req_status->context = cmd; + stream->req_status->length = sizeof(struct response_iu); + stream->req_status->buf = rsp_iu; + stream->req_status->complete = uasp_status_data_cmpl; +} + +static void usbg_release_cmd(struct se_cmd *se_cmd); +static int uasp_send_tm_response(struct usbg_cmd *cmd); + static void uasp_status_data_cmpl(struct usb_ep *ep, struct usb_request *req) { struct usbg_cmd *cmd = req->context; - struct uas_stream *stream = cmd->stream; struct f_uas *fu = cmd->fu; + struct uas_stream *stream = &fu->stream[cmd->se_cmd.map_tag]; int ret; - if (req->status < 0) + if (req->status == -ESHUTDOWN) goto cleanup; switch (cmd->state) { @@ -600,8 +704,37 @@ static void uasp_status_data_cmpl(struct usb_ep *ep, struct usb_request *req) break; case UASP_QUEUE_COMMAND: - transport_generic_free_cmd(&cmd->se_cmd, 0); - usb_ep_queue(fu->ep_cmd, fu->cmd.req, GFP_ATOMIC); + /* + * Overlapped command detected and cancelled. + * So send overlapped attempted status. + */ + if (cmd->tmr_rsp == RC_OVERLAPPED_TAG && + req->status == -ECONNRESET) { + uasp_send_tm_response(cmd); + return; + } + + hash_del(&stream->node); + + /* + * If no command submitted to target core here, just free the + * bitmap index. This is for the cases where f_tcm handles + * status response instead of the target core. + */ + if (cmd->tmr_rsp != RC_OVERLAPPED_TAG && + cmd->tmr_rsp != RC_RESPONSE_UNKNOWN) { + struct se_session *se_sess; + + se_sess = fu->tpg->tpg_nexus->tvn_se_sess; + sbitmap_queue_clear(&se_sess->sess_tag_pool, + cmd->se_cmd.map_tag, + cmd->se_cmd.map_cpu); + } else { + transport_generic_free_cmd(&cmd->se_cmd, 0); + } + + usb_ep_queue(fu->ep_cmd, cmd->req, GFP_ATOMIC); + complete(&stream->cmd_completion); break; default: @@ -610,27 +743,38 @@ static void uasp_status_data_cmpl(struct usb_ep *ep, struct usb_request *req) return; cleanup: + hash_del(&stream->node); transport_generic_free_cmd(&cmd->se_cmd, 0); } static int uasp_send_status_response(struct usbg_cmd *cmd) { struct f_uas *fu = cmd->fu; - struct uas_stream *stream = cmd->stream; + struct uas_stream *stream = &fu->stream[cmd->se_cmd.map_tag]; struct sense_iu *iu = &cmd->sense_iu; iu->tag = cpu_to_be16(cmd->tag); - stream->req_status->complete = uasp_status_data_cmpl; - stream->req_status->context = cmd; cmd->fu = fu; uasp_prepare_status(cmd); return usb_ep_queue(fu->ep_status, stream->req_status, GFP_ATOMIC); } +static int uasp_send_tm_response(struct usbg_cmd *cmd) +{ + struct f_uas *fu = cmd->fu; + struct uas_stream *stream = &fu->stream[cmd->se_cmd.map_tag]; + struct response_iu *iu = &cmd->response_iu; + + iu->tag = cpu_to_be16(cmd->tag); + cmd->fu = fu; + uasp_prepare_response(cmd); + return usb_ep_queue(fu->ep_status, stream->req_status, GFP_ATOMIC); +} + static int uasp_send_read_response(struct usbg_cmd *cmd) { struct f_uas *fu = cmd->fu; - struct uas_stream *stream = cmd->stream; + struct uas_stream *stream = &fu->stream[cmd->se_cmd.map_tag]; struct sense_iu *iu = &cmd->sense_iu; int ret; @@ -674,11 +818,10 @@ static int uasp_send_write_request(struct usbg_cmd *cmd) { struct f_uas *fu = cmd->fu; struct se_cmd *se_cmd = &cmd->se_cmd; - struct uas_stream *stream = cmd->stream; + struct uas_stream *stream = &fu->stream[se_cmd->map_tag]; struct sense_iu *iu = &cmd->sense_iu; int ret; - init_completion(&cmd->write_complete); cmd->fu = fu; iu->tag = cpu_to_be16(cmd->tag); @@ -710,36 +853,31 @@ static int uasp_send_write_request(struct usbg_cmd *cmd) pr_err("%s(%d)\n", __func__, __LINE__); } - wait_for_completion(&cmd->write_complete); - target_execute_cmd(se_cmd); cleanup: return ret; } -static int usbg_submit_command(struct f_uas *, void *, unsigned int); +static int usbg_submit_command(struct f_uas *, struct usb_request *); static void uasp_cmd_complete(struct usb_ep *ep, struct usb_request *req) { struct f_uas *fu = req->context; - int ret; - if (req->status < 0) + if (req->status == -ESHUTDOWN) return; - ret = usbg_submit_command(fu, req->buf, req->actual); - /* - * Once we tune for performance enqueue the command req here again so - * we can receive a second command while we processing this one. Pay - * attention to properly sync STAUS endpoint with DATA IN + OUT so you - * don't break HS. - */ - if (!ret) + if (req->status < 0) { + usb_ep_queue(fu->ep_cmd, req, GFP_ATOMIC); return; - usb_ep_queue(fu->ep_cmd, fu->cmd.req, GFP_ATOMIC); + } + + usbg_submit_command(fu, req); } static int uasp_alloc_stream_res(struct f_uas *fu, struct uas_stream *stream) { + init_completion(&stream->cmd_completion); + stream->req_in = usb_ep_alloc_request(fu->ep_in, GFP_KERNEL); if (!stream->req_in) goto out; @@ -764,66 +902,48 @@ out: return -ENOMEM; } -static int uasp_alloc_cmd(struct f_uas *fu) +static int uasp_alloc_cmd(struct f_uas *fu, int i) { - fu->cmd.req = usb_ep_alloc_request(fu->ep_cmd, GFP_KERNEL); - if (!fu->cmd.req) + fu->cmd[i].req = usb_ep_alloc_request(fu->ep_cmd, GFP_KERNEL); + if (!fu->cmd[i].req) goto err; - fu->cmd.buf = kmalloc(fu->ep_cmd->maxpacket, GFP_KERNEL); - if (!fu->cmd.buf) + fu->cmd[i].buf = kmalloc(fu->ep_cmd->maxpacket, GFP_KERNEL); + if (!fu->cmd[i].buf) goto err_buf; - fu->cmd.req->complete = uasp_cmd_complete; - fu->cmd.req->buf = fu->cmd.buf; - fu->cmd.req->length = fu->ep_cmd->maxpacket; - fu->cmd.req->context = fu; + fu->cmd[i].req->complete = uasp_cmd_complete; + fu->cmd[i].req->buf = fu->cmd[i].buf; + fu->cmd[i].req->length = fu->ep_cmd->maxpacket; + fu->cmd[i].req->context = fu; return 0; err_buf: - usb_ep_free_request(fu->ep_cmd, fu->cmd.req); + usb_ep_free_request(fu->ep_cmd, fu->cmd[i].req); err: return -ENOMEM; } -static void uasp_setup_stream_res(struct f_uas *fu, int max_streams) -{ - int i; - - for (i = 0; i < max_streams; i++) { - struct uas_stream *s = &fu->stream[i]; - - s->req_in->stream_id = i + 1; - s->req_out->stream_id = i + 1; - s->req_status->stream_id = i + 1; - } -} - static int uasp_prepare_reqs(struct f_uas *fu) { int ret; int i; - int max_streams; - if (fu->flags & USBG_USE_STREAMS) - max_streams = UASP_SS_EP_COMP_NUM_STREAMS; - else - max_streams = 1; - - for (i = 0; i < max_streams; i++) { + for (i = 0; i < USBG_NUM_CMDS; i++) { ret = uasp_alloc_stream_res(fu, &fu->stream[i]); if (ret) goto err_cleanup; } - ret = uasp_alloc_cmd(fu); - if (ret) - goto err_free_stream; - uasp_setup_stream_res(fu, max_streams); + for (i = 0; i < USBG_NUM_CMDS; i++) { + ret = uasp_alloc_cmd(fu, i); + if (ret) + goto err_free_stream; - ret = usb_ep_queue(fu->ep_cmd, fu->cmd.req, GFP_ATOMIC); - if (ret) - goto err_free_stream; + ret = usb_ep_queue(fu->ep_cmd, fu->cmd[i].req, GFP_ATOMIC); + if (ret) + goto err_free_stream; + } return 0; @@ -914,6 +1034,8 @@ static int get_cmd_dir(const unsigned char *cdb) case READ_TOC: case READ_FORMAT_CAPACITIES: case REQUEST_SENSE: + case ATA_12: + case ATA_16: ret = DMA_FROM_DEVICE; break; @@ -957,7 +1079,18 @@ static void usbg_data_write_cmpl(struct usb_ep *ep, struct usb_request *req) struct usbg_cmd *cmd = req->context; struct se_cmd *se_cmd = &cmd->se_cmd; - if (req->status < 0) { + cmd->state = UASP_QUEUE_COMMAND; + + if (req->status == -ESHUTDOWN) { + struct uas_stream *stream = &cmd->fu->stream[se_cmd->map_tag]; + + hash_del(&stream->node); + target_put_sess_cmd(se_cmd); + transport_generic_free_cmd(&cmd->se_cmd, 0); + return; + } + + if (req->status) { pr_err("%s() state %d transfer failed\n", __func__, cmd->state); goto cleanup; } @@ -969,11 +1102,22 @@ static void usbg_data_write_cmpl(struct usb_ep *ep, struct usb_request *req) se_cmd->data_length); } - complete(&cmd->write_complete); + cmd->flags |= USBG_CMD_PENDING_DATA_WRITE; + queue_work(cmd->fu->tpg->workqueue, &cmd->work); return; cleanup: - transport_generic_free_cmd(&cmd->se_cmd, 0); + target_put_sess_cmd(se_cmd); + + /* Command was aborted due to overlapped tag */ + if (cmd->state == UASP_QUEUE_COMMAND && + cmd->tmr_rsp == RC_OVERLAPPED_TAG) { + uasp_send_tm_response(cmd); + return; + } + + transport_send_check_condition_and_sense(se_cmd, + TCM_CHECK_CONDITION_ABORT_CMD, 0); } static int usbg_prepare_w_request(struct usbg_cmd *cmd, struct usb_request *req) @@ -995,9 +1139,12 @@ static int usbg_prepare_w_request(struct usbg_cmd *cmd, struct usb_request *req) } req->is_last = 1; + req->stream_id = cmd->tag; req->complete = usbg_data_write_cmpl; req->length = se_cmd->data_length; req->context = cmd; + + cmd->state = UASP_SEND_STATUS; return 0; } @@ -1037,36 +1184,153 @@ static int usbg_send_read_response(struct se_cmd *se_cmd) return uasp_send_read_response(cmd); } -static void usbg_cmd_work(struct work_struct *work) +static void usbg_aborted_task(struct se_cmd *se_cmd); + +static void usbg_submit_tmr(struct usbg_cmd *cmd) +{ + struct se_session *se_sess; + struct se_cmd *se_cmd; + int flags = TARGET_SCF_ACK_KREF; + + se_cmd = &cmd->se_cmd; + se_sess = cmd->fu->tpg->tpg_nexus->tvn_se_sess; + + target_submit_tmr(se_cmd, se_sess, + cmd->response_iu.add_response_info, + cmd->unpacked_lun, NULL, uasp_to_tcm_func(cmd->tmr_func), + GFP_ATOMIC, cmd->tag, flags); +} + +static void usbg_submit_cmd(struct usbg_cmd *cmd) { - struct usbg_cmd *cmd = container_of(work, struct usbg_cmd, work); struct se_cmd *se_cmd; struct tcm_usbg_nexus *tv_nexus; struct usbg_tpg *tpg; int dir, flags = (TARGET_SCF_UNKNOWN_SIZE | TARGET_SCF_ACK_KREF); + /* + * Note: each command will spawn its own process, and each stage of the + * command is processed sequentially. Should this no longer be the case, + * locking is needed. + */ + if (cmd->flags & USBG_CMD_PENDING_DATA_WRITE) { + target_execute_cmd(&cmd->se_cmd); + cmd->flags &= ~USBG_CMD_PENDING_DATA_WRITE; + return; + } + se_cmd = &cmd->se_cmd; tpg = cmd->fu->tpg; tv_nexus = tpg->tpg_nexus; dir = get_cmd_dir(cmd->cmd_buf); - if (dir < 0) { - __target_init_cmd(se_cmd, - tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo, - tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE, - cmd->prio_attr, cmd->sense_iu.sense, - cmd->unpacked_lun, NULL); + if (dir < 0) goto out; - } target_submit_cmd(se_cmd, tv_nexus->tvn_se_sess, cmd->cmd_buf, cmd->sense_iu.sense, cmd->unpacked_lun, 0, cmd->prio_attr, dir, flags); + return; out: + __target_init_cmd(se_cmd, + tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo, + tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE, + cmd->prio_attr, cmd->sense_iu.sense, + cmd->unpacked_lun, NULL); transport_send_check_condition_and_sense(se_cmd, - TCM_UNSUPPORTED_SCSI_OPCODE, 1); - transport_generic_free_cmd(&cmd->se_cmd, 0); + TCM_UNSUPPORTED_SCSI_OPCODE, 0); +} + +static void usbg_cmd_work(struct work_struct *work) +{ + struct usbg_cmd *cmd = container_of(work, struct usbg_cmd, work); + + /* + * Failure is detected by f_tcm here. Skip submitting the command to the + * target core if we already know the failing response and send the usb + * response to the host directly. + */ + if (cmd->tmr_rsp != RC_RESPONSE_UNKNOWN) + goto skip; + + if (cmd->tmr_func) + usbg_submit_tmr(cmd); + else + usbg_submit_cmd(cmd); + + return; + +skip: + if (cmd->tmr_rsp == RC_OVERLAPPED_TAG) { + struct f_uas *fu = cmd->fu; + struct se_session *se_sess; + struct uas_stream *stream = NULL; + struct hlist_node *tmp; + struct usbg_cmd *active_cmd = NULL; + + se_sess = cmd->fu->tpg->tpg_nexus->tvn_se_sess; + + hash_for_each_possible_safe(fu->stream_hash, stream, tmp, node, cmd->tag) { + int i = stream - &fu->stream[0]; + + active_cmd = &((struct usbg_cmd *)se_sess->sess_cmd_map)[i]; + if (active_cmd->tag == cmd->tag) + break; + } + + /* Sanity check */ + if (!stream || (active_cmd && active_cmd->tag != cmd->tag)) { + usbg_submit_command(cmd->fu, cmd->req); + return; + } + + reinit_completion(&stream->cmd_completion); + + /* + * A UASP command consists of the command, data, and status + * stages, each operating sequentially from different endpoints. + * + * Each USB endpoint operates independently, and depending on + * hardware implementation, a completion callback for a transfer + * from one endpoint may not reflect the order of completion on + * the wire. This is particularly true for devices with + * endpoints that have independent interrupts and event buffers. + * + * The driver must still detect misbehaving hosts and respond + * with an overlap status. To reduce false overlap failures, + * allow the active and matching stream ID a brief 1ms to + * complete before responding with an overlap command failure. + * Overlap failure should be rare. + */ + wait_for_completion_timeout(&stream->cmd_completion, msecs_to_jiffies(1)); + + /* If the previous stream is completed, retry the command. */ + if (!hash_hashed(&stream->node)) { + usbg_submit_command(cmd->fu, cmd->req); + return; + } + + /* + * The command isn't submitted to the target core, so we're safe + * to remove the bitmap index from the session tag pool. + */ + sbitmap_queue_clear(&se_sess->sess_tag_pool, + cmd->se_cmd.map_tag, + cmd->se_cmd.map_cpu); + + /* + * Overlap command tag detected. Cancel any pending transfer of + * the command submitted to target core. + */ + active_cmd->tmr_rsp = RC_OVERLAPPED_TAG; + usbg_aborted_task(&active_cmd->se_cmd); + + /* Send the response after the transfer is aborted. */ + return; + } + + uasp_send_tm_response(cmd); } static struct usbg_cmd *usbg_get_cmd(struct f_uas *fu, @@ -1084,6 +1348,7 @@ static struct usbg_cmd *usbg_get_cmd(struct f_uas *fu, memset(cmd, 0, sizeof(*cmd)); cmd->se_cmd.map_tag = tag; cmd->se_cmd.map_cpu = cpu; + cmd->se_cmd.cpuid = cpu; cmd->se_cmd.tag = cmd->tag = scsi_tag; cmd->fu = fu; @@ -1092,50 +1357,82 @@ static struct usbg_cmd *usbg_get_cmd(struct f_uas *fu, static void usbg_release_cmd(struct se_cmd *); -static int usbg_submit_command(struct f_uas *fu, - void *cmdbuf, unsigned int len) +static int usbg_submit_command(struct f_uas *fu, struct usb_request *req) { - struct command_iu *cmd_iu = cmdbuf; + struct iu *iu = req->buf; struct usbg_cmd *cmd; struct usbg_tpg *tpg = fu->tpg; struct tcm_usbg_nexus *tv_nexus; + struct uas_stream *stream; + struct hlist_node *tmp; + struct command_iu *cmd_iu; u32 cmd_len; u16 scsi_tag; - if (cmd_iu->iu_id != IU_ID_COMMAND) { - pr_err("Unsupported type %d\n", cmd_iu->iu_id); - return -EINVAL; - } - tv_nexus = tpg->tpg_nexus; if (!tv_nexus) { pr_err("Missing nexus, ignoring command\n"); return -EINVAL; } - cmd_len = (cmd_iu->len & ~0x3) + 16; - if (cmd_len > USBG_MAX_CMD) - return -EINVAL; - - scsi_tag = be16_to_cpup(&cmd_iu->tag); + scsi_tag = be16_to_cpup(&iu->tag); cmd = usbg_get_cmd(fu, tv_nexus, scsi_tag); if (IS_ERR(cmd)) { pr_err("usbg_get_cmd failed\n"); return -ENOMEM; } - memcpy(cmd->cmd_buf, cmd_iu->cdb, cmd_len); - if (fu->flags & USBG_USE_STREAMS) { - if (cmd->tag > UASP_SS_EP_COMP_NUM_STREAMS) - goto err; - if (!cmd->tag) - cmd->stream = &fu->stream[0]; - else - cmd->stream = &fu->stream[cmd->tag - 1]; - } else { - cmd->stream = &fu->stream[0]; + cmd->req = req; + cmd->fu = fu; + cmd->tag = scsi_tag; + cmd->se_cmd.tag = scsi_tag; + cmd->tmr_func = 0; + cmd->tmr_rsp = RC_RESPONSE_UNKNOWN; + cmd->flags = 0; + + cmd_iu = (struct command_iu *)iu; + + /* Command and Task Management IUs share the same LUN offset */ + cmd->unpacked_lun = scsilun_to_int(&cmd_iu->lun); + + if (iu->iu_id != IU_ID_COMMAND && iu->iu_id != IU_ID_TASK_MGMT) { + cmd->tmr_rsp = RC_INVALID_INFO_UNIT; + goto skip; + } + + hash_for_each_possible_safe(fu->stream_hash, stream, tmp, node, scsi_tag) { + struct usbg_cmd *active_cmd; + struct se_session *se_sess; + int i = stream - &fu->stream[0]; + + se_sess = cmd->fu->tpg->tpg_nexus->tvn_se_sess; + active_cmd = &((struct usbg_cmd *)se_sess->sess_cmd_map)[i]; + + if (active_cmd->tag == scsi_tag) { + cmd->tmr_rsp = RC_OVERLAPPED_TAG; + goto skip; + } } + stream = &fu->stream[cmd->se_cmd.map_tag]; + hash_add(fu->stream_hash, &stream->node, scsi_tag); + + if (iu->iu_id == IU_ID_TASK_MGMT) { + struct task_mgmt_iu *tm_iu; + + tm_iu = (struct task_mgmt_iu *)iu; + cmd->tmr_func = tm_iu->function; + goto skip; + } + + cmd_len = (cmd_iu->len & ~0x3) + 16; + if (cmd_len > USBG_MAX_CMD) { + target_free_tag(tv_nexus->tvn_se_sess, &cmd->se_cmd); + hash_del(&stream->node); + return -EINVAL; + } + memcpy(cmd->cmd_buf, cmd_iu->cdb, cmd_len); + switch (cmd_iu->prio_attr & 0x7) { case UAS_HEAD_TAG: cmd->prio_attr = TCM_HEAD_TAG; @@ -1155,15 +1452,11 @@ static int usbg_submit_command(struct f_uas *fu, break; } - cmd->unpacked_lun = scsilun_to_int(&cmd_iu->lun); - +skip: INIT_WORK(&cmd->work, usbg_cmd_work); queue_work(tpg->workqueue, &cmd->work); return 0; -err: - usbg_release_cmd(&cmd->se_cmd); - return -EINVAL; } static void bot_cmd_work(struct work_struct *work) @@ -1172,30 +1465,40 @@ static void bot_cmd_work(struct work_struct *work) struct se_cmd *se_cmd; struct tcm_usbg_nexus *tv_nexus; struct usbg_tpg *tpg; + int flags = TARGET_SCF_ACK_KREF; int dir; + /* + * Note: each command will spawn its own process, and each stage of the + * command is processed sequentially. Should this no longer be the case, + * locking is needed. + */ + if (cmd->flags & USBG_CMD_PENDING_DATA_WRITE) { + target_execute_cmd(&cmd->se_cmd); + cmd->flags &= ~USBG_CMD_PENDING_DATA_WRITE; + return; + } + se_cmd = &cmd->se_cmd; tpg = cmd->fu->tpg; tv_nexus = tpg->tpg_nexus; dir = get_cmd_dir(cmd->cmd_buf); - if (dir < 0) { - __target_init_cmd(se_cmd, - tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo, - tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE, - cmd->prio_attr, cmd->sense_iu.sense, - cmd->unpacked_lun, NULL); + if (dir < 0) goto out; - } target_submit_cmd(se_cmd, tv_nexus->tvn_se_sess, cmd->cmd_buf, cmd->sense_iu.sense, cmd->unpacked_lun, - cmd->data_len, cmd->prio_attr, dir, 0); + cmd->data_len, cmd->prio_attr, dir, flags); return; out: + __target_init_cmd(se_cmd, + tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo, + tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE, + cmd->prio_attr, cmd->sense_iu.sense, + cmd->unpacked_lun, NULL); transport_send_check_condition_and_sense(se_cmd, - TCM_UNSUPPORTED_SCSI_OPCODE, 1); - transport_generic_free_cmd(&cmd->se_cmd, 0); + TCM_UNSUPPORTED_SCSI_OPCODE, 0); } static int bot_submit_command(struct f_uas *fu, @@ -1239,6 +1542,7 @@ static int bot_submit_command(struct f_uas *fu, cmd->is_read = cbw->Flags & US_BULK_FLAG_IN ? 1 : 0; cmd->data_len = le32_to_cpu(cbw->DataTransferLength); cmd->se_cmd.tag = le32_to_cpu(cmd->bot_tag); + cmd->flags = 0; INIT_WORK(&cmd->work, bot_cmd_work); queue_work(tpg->workqueue, &cmd->work); @@ -1275,16 +1579,38 @@ static void usbg_release_cmd(struct se_cmd *se_cmd) se_cmd); struct se_session *se_sess = se_cmd->se_sess; + cmd->tag = 0; kfree(cmd->data_buf); target_free_tag(se_sess, se_cmd); } static void usbg_queue_tm_rsp(struct se_cmd *se_cmd) { + struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd, se_cmd); + + uasp_send_tm_response(cmd); } static void usbg_aborted_task(struct se_cmd *se_cmd) { + struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd, se_cmd); + struct f_uas *fu = cmd->fu; + struct usb_gadget *gadget = fuas_to_gadget(fu); + struct uas_stream *stream = &fu->stream[se_cmd->map_tag]; + int ret = 0; + + if (stream->req_out->status == -EINPROGRESS) + ret = usb_ep_dequeue(fu->ep_out, stream->req_out); + else if (stream->req_in->status == -EINPROGRESS) + ret = usb_ep_dequeue(fu->ep_in, stream->req_in); + else if (stream->req_status->status == -EINPROGRESS) + ret = usb_ep_dequeue(fu->ep_status, stream->req_status); + + if (ret) + dev_err(&gadget->dev, "Failed to abort cmd tag %d, (%d)\n", + cmd->tag, ret); + + cmd->state = UASP_QUEUE_COMMAND; } static const char *usbg_check_wwn(const char *name) @@ -1355,7 +1681,8 @@ static struct se_portal_group *usbg_make_tpg(struct se_wwn *wwn, goto unref_dep; mutex_init(&tpg->tpg_mutex); atomic_set(&tpg->tpg_port_count, 0); - tpg->workqueue = alloc_workqueue("tcm_usb_gadget", 0, 1); + tpg->workqueue = alloc_workqueue("tcm_usb_gadget", + WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE); if (!tpg->workqueue) goto free_tpg; @@ -1746,7 +2073,7 @@ static struct usb_endpoint_descriptor uasp_ss_bi_desc = { static struct usb_ss_ep_comp_descriptor uasp_bi_ep_comp_desc = { .bLength = sizeof(uasp_bi_ep_comp_desc), .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, - .bMaxBurst = 0, + .bMaxBurst = 15, .bmAttributes = UASP_SS_EP_COMP_LOG_STREAMS, .wBytesPerInterval = 0, }; @@ -1754,7 +2081,7 @@ static struct usb_ss_ep_comp_descriptor uasp_bi_ep_comp_desc = { static struct usb_ss_ep_comp_descriptor bot_bi_ep_comp_desc = { .bLength = sizeof(bot_bi_ep_comp_desc), .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, - .bMaxBurst = 0, + .bMaxBurst = 15, }; static struct usb_endpoint_descriptor uasp_bo_desc = { @@ -1789,12 +2116,14 @@ static struct usb_endpoint_descriptor uasp_ss_bo_desc = { static struct usb_ss_ep_comp_descriptor uasp_bo_ep_comp_desc = { .bLength = sizeof(uasp_bo_ep_comp_desc), .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + .bMaxBurst = 15, .bmAttributes = UASP_SS_EP_COMP_LOG_STREAMS, }; static struct usb_ss_ep_comp_descriptor bot_bo_ep_comp_desc = { .bLength = sizeof(bot_bo_ep_comp_desc), .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + .bMaxBurst = 15, }; static struct usb_endpoint_descriptor uasp_status_desc = { @@ -1971,43 +2300,39 @@ static int tcm_bind(struct usb_configuration *c, struct usb_function *f) bot_intf_desc.bInterfaceNumber = iface; uasp_intf_desc.bInterfaceNumber = iface; fu->iface = iface; - ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_bi_desc, - &uasp_bi_ep_comp_desc); + ep = usb_ep_autoconfig(gadget, &uasp_fs_bi_desc); if (!ep) goto ep_fail; fu->ep_in = ep; - ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_bo_desc, - &uasp_bo_ep_comp_desc); + ep = usb_ep_autoconfig(gadget, &uasp_fs_bo_desc); if (!ep) goto ep_fail; fu->ep_out = ep; - ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_status_desc, - &uasp_status_in_ep_comp_desc); + ep = usb_ep_autoconfig(gadget, &uasp_fs_status_desc); if (!ep) goto ep_fail; fu->ep_status = ep; - ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_cmd_desc, - &uasp_cmd_comp_desc); + ep = usb_ep_autoconfig(gadget, &uasp_fs_cmd_desc); if (!ep) goto ep_fail; fu->ep_cmd = ep; /* Assume endpoint addresses are the same for both speeds */ - uasp_bi_desc.bEndpointAddress = uasp_ss_bi_desc.bEndpointAddress; - uasp_bo_desc.bEndpointAddress = uasp_ss_bo_desc.bEndpointAddress; + uasp_bi_desc.bEndpointAddress = uasp_fs_bi_desc.bEndpointAddress; + uasp_bo_desc.bEndpointAddress = uasp_fs_bo_desc.bEndpointAddress; uasp_status_desc.bEndpointAddress = - uasp_ss_status_desc.bEndpointAddress; - uasp_cmd_desc.bEndpointAddress = uasp_ss_cmd_desc.bEndpointAddress; + uasp_fs_status_desc.bEndpointAddress; + uasp_cmd_desc.bEndpointAddress = uasp_fs_cmd_desc.bEndpointAddress; - uasp_fs_bi_desc.bEndpointAddress = uasp_ss_bi_desc.bEndpointAddress; - uasp_fs_bo_desc.bEndpointAddress = uasp_ss_bo_desc.bEndpointAddress; - uasp_fs_status_desc.bEndpointAddress = - uasp_ss_status_desc.bEndpointAddress; - uasp_fs_cmd_desc.bEndpointAddress = uasp_ss_cmd_desc.bEndpointAddress; + uasp_ss_bi_desc.bEndpointAddress = uasp_fs_bi_desc.bEndpointAddress; + uasp_ss_bo_desc.bEndpointAddress = uasp_fs_bo_desc.bEndpointAddress; + uasp_ss_status_desc.bEndpointAddress = + uasp_fs_status_desc.bEndpointAddress; + uasp_ss_cmd_desc.bEndpointAddress = uasp_fs_cmd_desc.bEndpointAddress; ret = usb_assign_descriptors(f, uasp_fs_function_desc, uasp_hs_function_desc, uasp_ss_function_desc, @@ -2051,9 +2376,14 @@ static void tcm_delayed_set_alt(struct work_struct *wq) static int tcm_get_alt(struct usb_function *f, unsigned intf) { - if (intf == bot_intf_desc.bInterfaceNumber) + struct f_uas *fu = to_f_uas(f); + + if (fu->iface != intf) + return -EOPNOTSUPP; + + if (fu->flags & USBG_IS_BOT) return USB_G_ALT_INT_BBB; - if (intf == uasp_intf_desc.bInterfaceNumber) + else if (fu->flags & USBG_IS_UAS) return USB_G_ALT_INT_UAS; return -EOPNOTSUPP; @@ -2063,6 +2393,9 @@ static int tcm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) { struct f_uas *fu = to_f_uas(f); + if (fu->iface != intf) + return -EOPNOTSUPP; + if ((alt == USB_G_ALT_INT_BBB) || (alt == USB_G_ALT_INT_UAS)) { struct guas_setup_wq *work; @@ -2271,6 +2604,8 @@ static struct usb_function *tcm_alloc(struct usb_function_instance *fi) fu->function.disable = tcm_disable; fu->function.free_func = tcm_free; fu->tpg = tpg_instances[i].tpg; + + hash_init(fu->stream_hash); mutex_unlock(&tpg_instances_lock); return &fu->function; @@ -2301,5 +2636,6 @@ static void __exit tcm_exit(void) } module_exit(tcm_exit); +MODULE_DESCRIPTION("Target based USB-Gadget"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Sebastian Andrzej Siewior"); diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c index 7de74a3dd392..c87e74afc881 100644 --- a/drivers/usb/gadget/function/f_uac1.c +++ b/drivers/usb/gadget/function/f_uac1.c @@ -377,24 +377,10 @@ enum { STR_AS_OUT_IF_ALT1, STR_AS_IN_IF_ALT0, STR_AS_IN_IF_ALT1, + NUM_STR_DESCRIPTORS, }; -static struct usb_string strings_uac1[] = { - /* [STR_AC_IF].s = DYNAMIC, */ - [STR_USB_OUT_IT].s = "Playback Input terminal", - [STR_USB_OUT_IT_CH_NAMES].s = "Playback Channels", - [STR_IO_OUT_OT].s = "Playback Output terminal", - [STR_IO_IN_IT].s = "Capture Input terminal", - [STR_IO_IN_IT_CH_NAMES].s = "Capture Channels", - [STR_USB_IN_OT].s = "Capture Output terminal", - [STR_FU_IN].s = "Capture Volume", - [STR_FU_OUT].s = "Playback Volume", - [STR_AS_OUT_IF_ALT0].s = "Playback Inactive", - [STR_AS_OUT_IF_ALT1].s = "Playback Active", - [STR_AS_IN_IF_ALT0].s = "Capture Inactive", - [STR_AS_IN_IF_ALT1].s = "Capture Active", - { }, -}; +static struct usb_string strings_uac1[NUM_STR_DESCRIPTORS + 1] = {}; static struct usb_gadget_strings str_uac1 = { .language = 0x0409, /* en-us */ @@ -1265,6 +1251,20 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f) strings_uac1[STR_AC_IF].s = audio_opts->function_name; + strings_uac1[STR_USB_OUT_IT].s = audio_opts->c_it_name; + strings_uac1[STR_USB_OUT_IT_CH_NAMES].s = audio_opts->c_it_ch_name; + strings_uac1[STR_IO_OUT_OT].s = audio_opts->c_ot_name; + strings_uac1[STR_FU_OUT].s = audio_opts->c_fu_vol_name; + strings_uac1[STR_AS_OUT_IF_ALT0].s = "Playback Inactive"; + strings_uac1[STR_AS_OUT_IF_ALT1].s = "Playback Active"; + + strings_uac1[STR_IO_IN_IT].s = audio_opts->p_it_name; + strings_uac1[STR_IO_IN_IT_CH_NAMES].s = audio_opts->p_it_ch_name; + strings_uac1[STR_USB_IN_OT].s = audio_opts->p_ot_name; + strings_uac1[STR_FU_IN].s = audio_opts->p_fu_vol_name; + strings_uac1[STR_AS_IN_IF_ALT0].s = "Capture Inactive"; + strings_uac1[STR_AS_IN_IF_ALT1].s = "Capture Active"; + us = usb_gstrings_attach(cdev, uac1_strings, ARRAY_SIZE(strings_uac1)); if (IS_ERR(us)) return PTR_ERR(us); @@ -1681,8 +1681,19 @@ UAC1_ATTRIBUTE(bool, c_volume_present); UAC1_ATTRIBUTE(s16, c_volume_min); UAC1_ATTRIBUTE(s16, c_volume_max); UAC1_ATTRIBUTE(s16, c_volume_res); + UAC1_ATTRIBUTE_STRING(function_name); +UAC1_ATTRIBUTE_STRING(p_it_name); +UAC1_ATTRIBUTE_STRING(p_it_ch_name); +UAC1_ATTRIBUTE_STRING(p_ot_name); +UAC1_ATTRIBUTE_STRING(p_fu_vol_name); + +UAC1_ATTRIBUTE_STRING(c_it_name); +UAC1_ATTRIBUTE_STRING(c_it_ch_name); +UAC1_ATTRIBUTE_STRING(c_ot_name); +UAC1_ATTRIBUTE_STRING(c_fu_vol_name); + static struct configfs_attribute *f_uac1_attrs[] = { &f_uac1_opts_attr_c_chmask, &f_uac1_opts_attr_c_srate, @@ -1706,6 +1717,16 @@ static struct configfs_attribute *f_uac1_attrs[] = { &f_uac1_opts_attr_function_name, + &f_uac1_opts_attr_p_it_name, + &f_uac1_opts_attr_p_it_ch_name, + &f_uac1_opts_attr_p_ot_name, + &f_uac1_opts_attr_p_fu_vol_name, + + &f_uac1_opts_attr_c_it_name, + &f_uac1_opts_attr_c_it_ch_name, + &f_uac1_opts_attr_c_ot_name, + &f_uac1_opts_attr_c_fu_vol_name, + NULL, }; @@ -1760,6 +1781,16 @@ static struct usb_function_instance *f_audio_alloc_inst(void) scnprintf(opts->function_name, sizeof(opts->function_name), "AC Interface"); + scnprintf(opts->p_it_name, sizeof(opts->p_it_name), "Capture Input terminal"); + scnprintf(opts->p_it_ch_name, sizeof(opts->p_it_ch_name), "Capture Channels"); + scnprintf(opts->p_ot_name, sizeof(opts->p_ot_name), "Capture Output terminal"); + scnprintf(opts->p_fu_vol_name, sizeof(opts->p_fu_vol_name), "Capture Volume"); + + scnprintf(opts->c_it_name, sizeof(opts->c_it_name), "Playback Input terminal"); + scnprintf(opts->c_it_ch_name, sizeof(opts->c_it_ch_name), "Playback Channels"); + scnprintf(opts->c_ot_name, sizeof(opts->c_ot_name), "Playback Output terminal"); + scnprintf(opts->c_fu_vol_name, sizeof(opts->c_fu_vol_name), "Playback Volume"); + return &opts->func_inst; } @@ -1823,5 +1854,6 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(uac1, f_audio_alloc_inst, f_audio_alloc); +MODULE_DESCRIPTION("USB Audio Class 1.0 Function (using u_audio API)"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Ruslan Bilovol"); diff --git a/drivers/usb/gadget/function/f_uac1_legacy.c b/drivers/usb/gadget/function/f_uac1_legacy.c index e2d7f69128a0..49cf5aae90ca 100644 --- a/drivers/usb/gadget/function/f_uac1_legacy.c +++ b/drivers/usb/gadget/function/f_uac1_legacy.c @@ -1014,5 +1014,6 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(uac1_legacy, f_audio_alloc_inst, f_audio_alloc); +MODULE_DESCRIPTION("USB Audio class function driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Bryan Wu"); diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index 383f6854cfec..9b324821c93b 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -95,7 +95,9 @@ enum { STR_CLKSRC_IN, STR_CLKSRC_OUT, STR_USB_IT, + STR_USB_IT_CH, STR_IO_IT, + STR_IO_IT_CH, STR_USB_OT, STR_IO_OT, STR_FU_IN, @@ -104,25 +106,10 @@ enum { STR_AS_OUT_ALT1, STR_AS_IN_ALT0, STR_AS_IN_ALT1, + NUM_STR_DESCRIPTORS, }; -static struct usb_string strings_fn[] = { - /* [STR_ASSOC].s = DYNAMIC, */ - [STR_IF_CTRL].s = "Topology Control", - [STR_CLKSRC_IN].s = "Input Clock", - [STR_CLKSRC_OUT].s = "Output Clock", - [STR_USB_IT].s = "USBH Out", - [STR_IO_IT].s = "USBD Out", - [STR_USB_OT].s = "USBH In", - [STR_IO_OT].s = "USBD In", - [STR_FU_IN].s = "Capture Volume", - [STR_FU_OUT].s = "Playback Volume", - [STR_AS_OUT_ALT0].s = "Playback Inactive", - [STR_AS_OUT_ALT1].s = "Playback Active", - [STR_AS_IN_ALT0].s = "Capture Inactive", - [STR_AS_IN_ALT1].s = "Capture Active", - { }, -}; +static struct usb_string strings_fn[NUM_STR_DESCRIPTORS + 1] = {}; static const char *const speed_names[] = { [USB_SPEED_UNKNOWN] = "UNKNOWN", @@ -1049,6 +1036,23 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) return ret; strings_fn[STR_ASSOC].s = uac2_opts->function_name; + strings_fn[STR_IF_CTRL].s = uac2_opts->if_ctrl_name; + strings_fn[STR_CLKSRC_IN].s = uac2_opts->clksrc_in_name; + strings_fn[STR_CLKSRC_OUT].s = uac2_opts->clksrc_out_name; + + strings_fn[STR_USB_IT].s = uac2_opts->c_it_name; + strings_fn[STR_USB_IT_CH].s = uac2_opts->c_it_ch_name; + strings_fn[STR_IO_OT].s = uac2_opts->c_ot_name; + strings_fn[STR_FU_OUT].s = uac2_opts->c_fu_vol_name; + strings_fn[STR_AS_OUT_ALT0].s = "Playback Inactive"; + strings_fn[STR_AS_OUT_ALT1].s = "Playback Active"; + + strings_fn[STR_IO_IT].s = uac2_opts->p_it_name; + strings_fn[STR_IO_IT_CH].s = uac2_opts->p_it_ch_name; + strings_fn[STR_USB_OT].s = uac2_opts->p_ot_name; + strings_fn[STR_FU_IN].s = uac2_opts->p_fu_vol_name; + strings_fn[STR_AS_IN_ALT0].s = "Capture Inactive"; + strings_fn[STR_AS_IN_ALT1].s = "Capture Active"; us = usb_gstrings_attach(cdev, fn_strings, ARRAY_SIZE(strings_fn)); if (IS_ERR(us)) @@ -1072,7 +1076,9 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) in_clk_src_desc.iClockSource = us[STR_CLKSRC_IN].id; out_clk_src_desc.iClockSource = us[STR_CLKSRC_OUT].id; usb_out_it_desc.iTerminal = us[STR_USB_IT].id; + usb_out_it_desc.iChannelNames = us[STR_USB_IT_CH].id; io_in_it_desc.iTerminal = us[STR_IO_IT].id; + io_in_it_desc.iChannelNames = us[STR_IO_IT_CH].id; usb_in_ot_desc.iTerminal = us[STR_USB_OT].id; io_out_ot_desc.iTerminal = us[STR_IO_OT].id; std_as_out_if0_desc.iInterface = us[STR_AS_OUT_ALT0].id; @@ -1179,6 +1185,7 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) uac2->as_in_alt = 0; } + std_ac_if_desc.bNumEndpoints = 0; if (FUOUT_EN(uac2_opts) || FUIN_EN(uac2_opts)) { uac2->int_ep = usb_ep_autoconfig(gadget, &fs_ep_int_desc); if (!uac2->int_ep) { @@ -2055,7 +2062,7 @@ static ssize_t f_uac2_opts_##name##_store(struct config_item *item, \ const char *page, size_t len) \ { \ struct f_uac2_opts *opts = to_f_uac2_opts(item); \ - int ret = 0; \ + int ret = len; \ \ mutex_lock(&opts->lock); \ if (opts->refcnt) { \ @@ -2063,8 +2070,11 @@ static ssize_t f_uac2_opts_##name##_store(struct config_item *item, \ goto end; \ } \ \ - ret = scnprintf(opts->name, min(sizeof(opts->name), len), \ - "%s", page); \ + if (len && page[len - 1] == '\n') \ + len--; \ + \ + scnprintf(opts->name, min(sizeof(opts->name), len + 1), \ + "%s", page); \ \ end: \ mutex_unlock(&opts->lock); \ @@ -2097,10 +2107,24 @@ UAC2_ATTRIBUTE(s16, c_volume_max); UAC2_ATTRIBUTE(s16, c_volume_res); UAC2_ATTRIBUTE(u32, fb_max); UAC2_ATTRIBUTE_STRING(function_name); +UAC2_ATTRIBUTE_STRING(if_ctrl_name); +UAC2_ATTRIBUTE_STRING(clksrc_in_name); +UAC2_ATTRIBUTE_STRING(clksrc_out_name); + +UAC2_ATTRIBUTE_STRING(p_it_name); +UAC2_ATTRIBUTE_STRING(p_it_ch_name); +UAC2_ATTRIBUTE_STRING(p_ot_name); +UAC2_ATTRIBUTE_STRING(p_fu_vol_name); + +UAC2_ATTRIBUTE_STRING(c_it_name); +UAC2_ATTRIBUTE_STRING(c_it_ch_name); +UAC2_ATTRIBUTE_STRING(c_ot_name); +UAC2_ATTRIBUTE_STRING(c_fu_vol_name); UAC2_ATTRIBUTE(s16, p_terminal_type); UAC2_ATTRIBUTE(s16, c_terminal_type); + static struct configfs_attribute *f_uac2_attrs[] = { &f_uac2_opts_attr_p_chmask, &f_uac2_opts_attr_p_srate, @@ -2127,6 +2151,19 @@ static struct configfs_attribute *f_uac2_attrs[] = { &f_uac2_opts_attr_c_volume_res, &f_uac2_opts_attr_function_name, + &f_uac2_opts_attr_if_ctrl_name, + &f_uac2_opts_attr_clksrc_in_name, + &f_uac2_opts_attr_clksrc_out_name, + + &f_uac2_opts_attr_p_it_name, + &f_uac2_opts_attr_p_it_ch_name, + &f_uac2_opts_attr_p_ot_name, + &f_uac2_opts_attr_p_fu_vol_name, + + &f_uac2_opts_attr_c_it_name, + &f_uac2_opts_attr_c_it_ch_name, + &f_uac2_opts_attr_c_ot_name, + &f_uac2_opts_attr_c_fu_vol_name, &f_uac2_opts_attr_p_terminal_type, &f_uac2_opts_attr_c_terminal_type, @@ -2188,6 +2225,19 @@ static struct usb_function_instance *afunc_alloc_inst(void) opts->fb_max = FBACK_FAST_MAX; scnprintf(opts->function_name, sizeof(opts->function_name), "Source/Sink"); + scnprintf(opts->if_ctrl_name, sizeof(opts->if_ctrl_name), "Topology Control"); + scnprintf(opts->clksrc_in_name, sizeof(opts->clksrc_in_name), "Input Clock"); + scnprintf(opts->clksrc_out_name, sizeof(opts->clksrc_out_name), "Output Clock"); + + scnprintf(opts->p_it_name, sizeof(opts->p_it_name), "USBD Out"); + scnprintf(opts->p_it_ch_name, sizeof(opts->p_it_ch_name), "Capture Channels"); + scnprintf(opts->p_ot_name, sizeof(opts->p_ot_name), "USBH In"); + scnprintf(opts->p_fu_vol_name, sizeof(opts->p_fu_vol_name), "Capture Volume"); + + scnprintf(opts->c_it_name, sizeof(opts->c_it_name), "USBH Out"); + scnprintf(opts->c_it_ch_name, sizeof(opts->c_it_ch_name), "Playback Channels"); + scnprintf(opts->c_ot_name, sizeof(opts->c_ot_name), "USBD In"); + scnprintf(opts->c_fu_vol_name, sizeof(opts->c_fu_vol_name), "Playback Volume"); opts->p_terminal_type = UAC2_DEF_P_TERM_TYPE; opts->c_terminal_type = UAC2_DEF_C_TERM_TYPE; @@ -2251,6 +2301,7 @@ static struct usb_function *afunc_alloc(struct usb_function_instance *fi) } DECLARE_USB_FUNCTION_INIT(uac2, afunc_alloc_inst, afunc_alloc); +MODULE_DESCRIPTION("USB Audio Class 2.0 Function"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Yadwinder Singh"); MODULE_AUTHOR("Jaswinder Singh"); diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 929666805bd2..aa6ab666741a 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -465,7 +465,7 @@ uvc_register_video(struct uvc_device *uvc) memcpy(mem, desc, (desc)->bLength); \ *(dst)++ = mem; \ mem += (desc)->bLength; \ - } while (0); + } while (0) #define UVC_COPY_DESCRIPTORS(mem, dst, src) \ do { \ @@ -991,6 +991,8 @@ static void uvc_function_unbind(struct usb_configuration *c, uvcg_info(f, "%s()\n", __func__); + kthread_cancel_work_sync(&video->hw_submit); + if (video->async_wq) destroy_workqueue(video->async_wq); @@ -1118,5 +1120,6 @@ err_config: } DECLARE_USB_FUNCTION_INIT(uvc, uvc_alloc_inst, uvc_alloc); +MODULE_DESCRIPTION("USB Video Class Gadget driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Laurent Pinchart"); diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c index 29bf8664bf58..afd75d72412c 100644 --- a/drivers/usb/gadget/function/rndis.c +++ b/drivers/usb/gadget/function/rndis.c @@ -31,7 +31,7 @@ #include <asm/io.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "u_rndis.h" @@ -869,12 +869,12 @@ EXPORT_SYMBOL_GPL(rndis_msg_parser); static inline int rndis_get_nr(void) { - return ida_simple_get(&rndis_ida, 0, 1000, GFP_KERNEL); + return ida_alloc_max(&rndis_ida, 999, GFP_KERNEL); } static inline void rndis_put_nr(int nr) { - ida_simple_remove(&rndis_ida, nr); + ida_free(&rndis_ida, nr); } struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v) diff --git a/drivers/usb/gadget/function/storage_common.c b/drivers/usb/gadget/function/storage_common.c index 2a4163b0f6fe..75831f2c7abe 100644 --- a/drivers/usb/gadget/function/storage_common.c +++ b/drivers/usb/gadget/function/storage_common.c @@ -537,4 +537,5 @@ ssize_t fsg_store_forced_eject(struct fsg_lun *curlun, struct rw_semaphore *file } EXPORT_SYMBOL_GPL(fsg_store_forced_eject); +MODULE_DESCRIPTION("Common definitions for mass storage functionality"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/storage_common.h b/drivers/usb/gadget/function/storage_common.h index 0a544a82cbf8..11ac785d5eee 100644 --- a/drivers/usb/gadget/function/storage_common.h +++ b/drivers/usb/gadget/function/storage_common.h @@ -5,7 +5,7 @@ #include <linux/device.h> #include <linux/usb/storage.h> #include <scsi/scsi.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #ifndef DEBUG #undef VERBOSE_DEBUG @@ -131,7 +131,7 @@ static inline bool fsg_lun_is_open(struct fsg_lun *curlun) #define FSG_BUFLEN ((u32)16384) /* Maximal number of LUNs supported in mass storage function */ -#define FSG_MAX_LUNS 16 +#define FSG_MAX_LUNS (US_BULK_MAX_LUN_LIMIT + 1) enum fsg_buffer_state { BUF_STATE_SENDING = -2, diff --git a/drivers/usb/gadget/function/tcm.h b/drivers/usb/gadget/function/tcm.h index 3cd565794ad7..009974d81d66 100644 --- a/drivers/usb/gadget/function/tcm.h +++ b/drivers/usb/gadget/function/tcm.h @@ -4,6 +4,7 @@ #include <linux/kref.h> /* #include <linux/usb/uas.h> */ +#include <linux/hashtable.h> #include <linux/usb/composite.h> #include <linux/usb/uas.h> #include <linux/usb/storage.h> @@ -13,9 +14,11 @@ #define USBG_NAMELEN 32 #define fuas_to_gadget(f) (f->function.config->cdev->gadget) -#define UASP_SS_EP_COMP_LOG_STREAMS 4 +#define UASP_SS_EP_COMP_LOG_STREAMS 5 #define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS) +#define USBG_NUM_CMDS (UASP_SS_EP_COMP_NUM_STREAMS + 1) + enum { USB_G_STR_INT_UAS = 0, USB_G_STR_INT_BBB, @@ -24,7 +27,7 @@ enum { #define USB_G_ALT_INT_BBB 0 #define USB_G_ALT_INT_UAS 1 -#define USB_G_DEFAULT_SESSION_TAGS 128 +#define USB_G_DEFAULT_SESSION_TAGS USBG_NUM_CMDS struct tcm_usbg_nexus { struct se_session *tvn_se_sess; @@ -72,15 +75,23 @@ struct usbg_cmd { struct se_cmd se_cmd; void *data_buf; /* used if no sg support available */ struct f_uas *fu; - struct completion write_complete; struct kref ref; + struct usb_request *req; + + u32 flags; +#define USBG_CMD_PENDING_DATA_WRITE BIT(0) + /* UAS only */ u16 tag; u16 prio_attr; struct sense_iu sense_iu; + struct response_iu response_iu; enum uas_state state; - struct uas_stream *stream; + + int tmr_func; + int tmr_rsp; +#define RC_RESPONSE_UNKNOWN 0xff /* BOT only */ __le32 bot_tag; @@ -93,6 +104,9 @@ struct uas_stream { struct usb_request *req_in; struct usb_request *req_out; struct usb_request *req_status; + + struct completion cmd_completion; + struct hlist_node node; }; struct usbg_cdb { @@ -116,15 +130,17 @@ struct f_uas { #define USBG_USE_STREAMS (1 << 2) #define USBG_IS_BOT (1 << 3) #define USBG_BOT_CMD_PEND (1 << 4) +#define USBG_BOT_WEDGED (1 << 5) - struct usbg_cdb cmd; + struct usbg_cdb cmd[USBG_NUM_CMDS]; struct usb_ep *ep_in; struct usb_ep *ep_out; /* UAS */ struct usb_ep *ep_status; struct usb_ep *ep_cmd; - struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS]; + struct uas_stream stream[USBG_NUM_CMDS]; + DECLARE_HASHTABLE(stream_hash, UASP_SS_EP_COMP_LOG_STREAMS); /* BOT */ struct bot_status bot_status; diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c index 4a42574b4a7f..ca8dbec65f73 100644 --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -57,13 +57,13 @@ struct uac_rtd_params { /* Volume/Mute controls and their state */ int fu_id; /* Feature Unit ID */ - struct snd_kcontrol *snd_kctl_volume; - struct snd_kcontrol *snd_kctl_mute; + struct snd_ctl_elem_id snd_kctl_volume_id; + struct snd_ctl_elem_id snd_kctl_mute_id; s16 volume_min, volume_max, volume_res; s16 volume; int mute; - struct snd_kcontrol *snd_kctl_rate; /* read-only current rate */ + struct snd_ctl_elem_id snd_kctl_rate_id; /* read-only current rate */ int srate; /* selected samplerate */ int active; /* playback/capture running */ @@ -494,14 +494,13 @@ static inline void free_ep_fback(struct uac_rtd_params *prm, struct usb_ep *ep) static void set_active(struct uac_rtd_params *prm, bool active) { // notifying through the Rate ctrl - struct snd_kcontrol *kctl = prm->snd_kctl_rate; unsigned long flags; spin_lock_irqsave(&prm->lock, flags); if (prm->active != active) { prm->active = active; snd_ctl_notify(prm->uac->card, SNDRV_CTL_EVENT_MASK_VALUE, - &kctl->id); + &prm->snd_kctl_rate_id); } spin_unlock_irqrestore(&prm->lock, flags); } @@ -593,16 +592,25 @@ int u_audio_start_capture(struct g_audio *audio_dev) struct usb_ep *ep, *ep_fback; struct uac_rtd_params *prm; struct uac_params *params = &audio_dev->params; - int req_len, i; + int req_len, i, ret; prm = &uac->c_prm; dev_dbg(dev, "start capture with rate %d\n", prm->srate); ep = audio_dev->out_ep; - config_ep_by_speed(gadget, &audio_dev->func, ep); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed for out_ep failed (%d)\n", ret); + return ret; + } + req_len = ep->maxpacket; prm->ep_enabled = true; - usb_ep_enable(ep); + ret = usb_ep_enable(ep); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for out_ep (%d)\n", ret); + return ret; + } for (i = 0; i < params->req_number; i++) { if (!prm->reqs[i]) { @@ -630,9 +638,18 @@ int u_audio_start_capture(struct g_audio *audio_dev) return 0; /* Setup feedback endpoint */ - config_ep_by_speed(gadget, &audio_dev->func, ep_fback); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep_fback); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed in_ep_fback failed (%d)\n", ret); + return ret; // TODO: Clean up out_ep + } + prm->fb_ep_enabled = true; - usb_ep_enable(ep_fback); + ret = usb_ep_enable(ep_fback); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for in_ep_fback (%d)\n", ret); + return ret; // TODO: Clean up out_ep + } req_len = ep_fback->maxpacket; req_fback = usb_ep_alloc_request(ep_fback, GFP_ATOMIC); @@ -688,13 +705,17 @@ int u_audio_start_playback(struct g_audio *audio_dev) struct uac_params *params = &audio_dev->params; unsigned int factor; const struct usb_endpoint_descriptor *ep_desc; - int req_len, i; + int req_len, i, ret; unsigned int p_pktsize; prm = &uac->p_prm; dev_dbg(dev, "start playback with rate %d\n", prm->srate); ep = audio_dev->in_ep; - config_ep_by_speed(gadget, &audio_dev->func, ep); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed for in_ep failed (%d)\n", ret); + return ret; + } ep_desc = ep->desc; /* @@ -721,7 +742,11 @@ int u_audio_start_playback(struct g_audio *audio_dev) uac->p_residue_mil = 0; prm->ep_enabled = true; - usb_ep_enable(ep); + ret = usb_ep_enable(ep); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for in_ep (%d)\n", ret); + return ret; + } for (i = 0; i < params->req_number; i++) { if (!prm->reqs[i]) { @@ -807,7 +832,7 @@ int u_audio_set_volume(struct g_audio *audio_dev, int playback, s16 val) if (change) snd_ctl_notify(uac->card, SNDRV_CTL_EVENT_MASK_VALUE, - &prm->snd_kctl_volume->id); + &prm->snd_kctl_volume_id); return 0; } @@ -856,7 +881,7 @@ int u_audio_set_mute(struct g_audio *audio_dev, int playback, int val) if (change) snd_ctl_notify(uac->card, SNDRV_CTL_EVENT_MASK_VALUE, - &prm->snd_kctl_mute->id); + &prm->snd_kctl_mute_id); return 0; } @@ -1115,35 +1140,35 @@ static int u_audio_rate_get(struct snd_kcontrol *kcontrol, } static struct snd_kcontrol_new u_audio_controls[] = { - [UAC_FBACK_CTRL] { + [UAC_FBACK_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "Capture Pitch 1000000", .info = u_audio_pitch_info, .get = u_audio_pitch_get, .put = u_audio_pitch_put, }, - [UAC_P_PITCH_CTRL] { + [UAC_P_PITCH_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "Playback Pitch 1000000", .info = u_audio_pitch_info, .get = u_audio_pitch_get, .put = u_audio_pitch_put, }, - [UAC_MUTE_CTRL] { + [UAC_MUTE_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "", /* will be filled later */ .info = u_audio_mute_info, .get = u_audio_mute_get, .put = u_audio_mute_put, }, - [UAC_VOLUME_CTRL] { + [UAC_VOLUME_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "", /* will be filled later */ .info = u_audio_volume_info, .get = u_audio_volume_get, .put = u_audio_volume_put, }, - [UAC_RATE_CTRL] { + [UAC_RATE_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "", /* will be filled later */ .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, @@ -1243,7 +1268,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, if (err < 0) goto snd_fail; - strscpy(pcm->name, pcm_name, sizeof(pcm->name)); + strscpy(pcm->name, pcm_name); pcm->private_data = uac; uac->pcm = pcm; @@ -1257,7 +1282,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, if ((c_chmask && g_audio->in_ep_fback) || (p_chmask && params->p_fu.id) || (c_chmask && params->c_fu.id)) - strscpy(card->mixername, card_name, sizeof(card->driver)); + strscpy(card->mixername, card_name); if (c_chmask && g_audio->in_ep_fback) { kctl = snd_ctl_new1(&u_audio_controls[UAC_FBACK_CTRL], @@ -1331,7 +1356,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, err = snd_ctl_add(card, kctl); if (err < 0) goto snd_fail; - prm->snd_kctl_mute = kctl; + prm->snd_kctl_mute_id = kctl->id; prm->mute = 0; } @@ -1359,7 +1384,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, err = snd_ctl_add(card, kctl); if (err < 0) goto snd_fail; - prm->snd_kctl_volume = kctl; + prm->snd_kctl_volume_id = kctl->id; prm->volume = fu->volume_max; prm->volume_max = fu->volume_max; prm->volume_min = fu->volume_min; @@ -1383,12 +1408,13 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, err = snd_ctl_add(card, kctl); if (err < 0) goto snd_fail; - prm->snd_kctl_rate = kctl; + prm->snd_kctl_rate_id = kctl->id; } - strscpy(card->driver, card_name, sizeof(card->driver)); - strscpy(card->shortname, card_name, sizeof(card->shortname)); - sprintf(card->longname, "%s %i", card_name, card->dev->id); + strscpy(card->driver, card_name); + strscpy(card->shortname, card_name); + snprintf(card->longname, sizeof(card->longname), "%s %i", + card_name, card->dev->id); snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, NULL, 0, BUFF_SIZE_MAX); @@ -1420,6 +1446,8 @@ void g_audio_cleanup(struct g_audio *g_audio) return; uac = g_audio->uac; + g_audio->uac = NULL; + card = uac->card; if (card) snd_card_free_when_closed(card); diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index 444212c0b5a9..f58590bf5e02 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -1032,7 +1032,7 @@ int gether_set_ifname(struct net_device *net, const char *name, int len) if (!p || p[1] != 'd' || strchr(p + 2, '%')) return -EINVAL; - strncpy(net->name, tmp, sizeof(net->name)); + strscpy(net->name, tmp); dev->ifname_set = true; return 0; @@ -1052,8 +1052,8 @@ void gether_suspend(struct gether *link) * There is a transfer in progress. So we trigger a remote * wakeup to inform the host. */ - ether_wakeup_host(dev->port_usb); - return; + if (!ether_wakeup_host(dev->port_usb)) + return; } spin_lock_irqsave(&dev->lock, flags); link->is_suspend = true; @@ -1163,8 +1163,6 @@ struct net_device *gether_connect(struct gether *link) if (netif_running(dev->net)) eth_start(dev, GFP_ATOMIC); - netif_device_attach(dev->net); - /* on error, disable any endpoints */ } else { (void) usb_ep_disable(link->out_ep); @@ -1202,7 +1200,7 @@ void gether_disconnect(struct gether *link) DBG(dev, "%s\n", __func__); - netif_device_detach(dev->net); + netif_stop_queue(dev->net); netif_carrier_off(dev->net); /* disable endpoints, forcing (synchronous) completion @@ -1247,5 +1245,6 @@ void gether_disconnect(struct gether *link) } EXPORT_SYMBOL_GPL(gether_disconnect); +MODULE_DESCRIPTION("Ethernet-over-USB link layer utilities for Gadget stack"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c index a92eb6d90976..36fff45e8c9b 100644 --- a/drivers/usb/gadget/function/u_serial.c +++ b/drivers/usb/gadget/function/u_serial.c @@ -21,6 +21,7 @@ #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/export.h> #include <linux/module.h> #include <linux/console.h> @@ -28,6 +29,7 @@ #include <linux/kthread.h> #include <linux/workqueue.h> #include <linux/kfifo.h> +#include <linux/serial.h> #include "u_serial.h" @@ -126,6 +128,7 @@ struct gs_port { wait_queue_head_t close_wait; bool suspended; /* port suspended */ bool start_delayed; /* delay start when suspended */ + struct async_icount icount; /* REVISIT this state ... */ struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */ @@ -257,6 +260,7 @@ __acquires(&port->port_lock) break; } do_tty_wake = true; + port->icount.tx += len; req->length = len; list_del(&req->list); @@ -408,6 +412,7 @@ static void gs_rx_push(struct work_struct *work) size -= n; } + port->icount.rx += size; count = tty_insert_flip_string(&port->port, packet, size); if (count) @@ -575,9 +580,12 @@ static int gs_start_io(struct gs_port *port) * we didn't in gs_start_tx() */ tty_wakeup(port->port.tty); } else { - gs_free_requests(ep, head, &port->read_allocated); - gs_free_requests(port->port_usb->in, &port->write_pool, - &port->write_allocated); + /* Free reqs only if we are still connected */ + if (port->port_usb) { + gs_free_requests(ep, head, &port->read_allocated); + gs_free_requests(port->port_usb->in, &port->write_pool, + &port->write_allocated); + } status = -EIO; } @@ -851,6 +859,23 @@ static int gs_break_ctl(struct tty_struct *tty, int duration) return status; } +static int gs_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + struct gs_port *port = tty->driver_data; + struct async_icount cnow; + unsigned long flags; + + spin_lock_irqsave(&port->port_lock, flags); + cnow = port->icount; + spin_unlock_irqrestore(&port->port_lock, flags); + + icount->rx = cnow.rx; + icount->tx = cnow.tx; + + return 0; +} + static const struct tty_operations gs_tty_ops = { .open = gs_open, .close = gs_close, @@ -861,6 +886,7 @@ static const struct tty_operations gs_tty_ops = { .chars_in_buffer = gs_chars_in_buffer, .unthrottle = gs_unthrottle, .break_ctl = gs_break_ctl, + .get_icount = gs_get_icount, }; /*-------------------------------------------------------------------------*/ @@ -1441,6 +1467,7 @@ void gserial_suspend(struct gserial *gser) spin_lock(&port->port_lock); spin_unlock(&serial_port_lock); port->suspended = true; + port->start_delayed = true; spin_unlock_irqrestore(&port->port_lock, flags); } EXPORT_SYMBOL_GPL(gserial_suspend); @@ -1519,7 +1546,7 @@ static int __init userial_init(void) pr_debug("%s: registered %d ttyGS* device%s\n", __func__, MAX_U_SERIAL_PORTS, - (MAX_U_SERIAL_PORTS == 1) ? "" : "s"); + str_plural(MAX_U_SERIAL_PORTS)); return status; fail: @@ -1536,4 +1563,5 @@ static void __exit userial_cleanup(void) } module_exit(userial_cleanup); +MODULE_DESCRIPTION("utilities for USB gadget \"serial port\"/TTY support"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/function/u_serial.h b/drivers/usb/gadget/function/u_serial.h index 901d99310bc4..e1274338ea61 100644 --- a/drivers/usb/gadget/function/u_serial.h +++ b/drivers/usb/gadget/function/u_serial.h @@ -17,6 +17,10 @@ struct f_serial_opts { struct usb_function_instance func_inst; u8 port_num; + u8 protocol; + + struct mutex lock; /* protect instances */ + int instances; }; /* diff --git a/drivers/usb/gadget/function/u_uac1.h b/drivers/usb/gadget/function/u_uac1.h index f7a616760e31..feb6eb76462f 100644 --- a/drivers/usb/gadget/function/u_uac1.h +++ b/drivers/usb/gadget/function/u_uac1.h @@ -52,7 +52,17 @@ struct f_uac1_opts { int req_number; unsigned bound:1; - char function_name[32]; + char function_name[USB_MAX_STRING_LEN]; + + char p_it_name[USB_MAX_STRING_LEN]; + char p_it_ch_name[USB_MAX_STRING_LEN]; + char p_ot_name[USB_MAX_STRING_LEN]; + char p_fu_vol_name[USB_MAX_STRING_LEN]; + + char c_it_name[USB_MAX_STRING_LEN]; + char c_it_ch_name[USB_MAX_STRING_LEN]; + char c_ot_name[USB_MAX_STRING_LEN]; + char c_fu_vol_name[USB_MAX_STRING_LEN]; struct mutex lock; int refcnt; diff --git a/drivers/usb/gadget/function/u_uac2.h b/drivers/usb/gadget/function/u_uac2.h index 5e81bdd6c5fb..0df808289ded 100644 --- a/drivers/usb/gadget/function/u_uac2.h +++ b/drivers/usb/gadget/function/u_uac2.h @@ -68,7 +68,20 @@ struct f_uac2_opts { int fb_max; bool bound; - char function_name[32]; + char function_name[USB_MAX_STRING_LEN]; + char if_ctrl_name[USB_MAX_STRING_LEN]; + char clksrc_in_name[USB_MAX_STRING_LEN]; + char clksrc_out_name[USB_MAX_STRING_LEN]; + + char p_it_name[USB_MAX_STRING_LEN]; + char p_it_ch_name[USB_MAX_STRING_LEN]; + char p_ot_name[USB_MAX_STRING_LEN]; + char p_fu_vol_name[USB_MAX_STRING_LEN]; + + char c_it_name[USB_MAX_STRING_LEN]; + char c_it_ch_name[USB_MAX_STRING_LEN]; + char c_ot_name[USB_MAX_STRING_LEN]; + char c_fu_vol_name[USB_MAX_STRING_LEN]; s16 p_terminal_type; s16 c_terminal_type; diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h index cb35687b11e7..6f44dd732315 100644 --- a/drivers/usb/gadget/function/uvc.h +++ b/drivers/usb/gadget/function/uvc.h @@ -71,6 +71,11 @@ extern unsigned int uvc_gadget_trace_param; #define UVCG_REQUEST_HEADER_LEN 12 +#define UVCG_REQ_MAX_INT_COUNT 16 +#define UVCG_REQ_MAX_ZERO_COUNT (2 * UVCG_REQ_MAX_INT_COUNT) + +#define UVCG_STREAMING_MIN_BUFFERS 2 + /* ------------------------------------------------------------------------ * Structures */ @@ -91,16 +96,24 @@ struct uvc_video { struct work_struct pump; struct workqueue_struct *async_wq; + struct kthread_worker *kworker; + struct kthread_work hw_submit; + + atomic_t queued; + /* Frame parameters */ u8 bpp; u32 fcc; unsigned int width; unsigned int height; unsigned int imagesize; + unsigned int interval; struct mutex mutex; /* protects frame parameters */ unsigned int uvc_num_requests; + unsigned int reqs_per_frame; + /* Requests */ bool is_enabled; /* tracks whether video stream is enabled */ unsigned int req_size; diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c index 7e704b2bcfd1..f131943254a4 100644 --- a/drivers/usb/gadget/function/uvc_configfs.c +++ b/drivers/usb/gadget/function/uvc_configfs.c @@ -13,6 +13,7 @@ #include "uvc_configfs.h" #include <linux/sort.h> +#include <linux/usb/uvc.h> #include <linux/usb/video.h> /* ----------------------------------------------------------------------------- @@ -92,10 +93,10 @@ static int __uvcg_iter_item_entries(const char *page, size_t len, while (pg - page < len) { i = 0; - while (i < sizeof(buf) && (pg - page < len) && + while (i < bufsize && (pg - page < len) && *pg != '\0' && *pg != '\n') buf[i++] = *pg++; - if (i == sizeof(buf)) { + if (i == bufsize) { ret = -EINVAL; goto out_free_buf; } @@ -1565,11 +1566,13 @@ static const struct uvcg_config_group_type uvcg_control_grp_type = { /* ----------------------------------------------------------------------------- * streaming/uncompressed * streaming/mjpeg + * streaming/framebased */ static const char * const uvcg_format_names[] = { "uncompressed", "mjpeg", + "framebased", }; static struct uvcg_color_matching * @@ -1776,6 +1779,9 @@ static int uvcg_streaming_header_allow_link(struct config_item *src, target_fmt = container_of(to_config_group(target), struct uvcg_format, group); + if (!target_fmt) + goto out; + uvcg_format_set_indices(to_config_group(target)); format_ptr = kzalloc(sizeof(*format_ptr), GFP_KERNEL); @@ -1815,6 +1821,9 @@ static void uvcg_streaming_header_drop_link(struct config_item *src, target_fmt = container_of(to_config_group(target), struct uvcg_format, group); + if (!target_fmt) + goto out; + list_for_each_entry_safe(format_ptr, tmp, &src_hdr->formats, entry) if (format_ptr->fmt == target_fmt) { list_del(&format_ptr->entry); @@ -1825,6 +1834,7 @@ static void uvcg_streaming_header_drop_link(struct config_item *src, --target_fmt->linked; +out: mutex_unlock(&opts->lock); mutex_unlock(su_mutex); } @@ -2021,6 +2031,7 @@ UVCG_FRAME_ATTR(dw_min_bit_rate, dwMinBitRate, 32); UVCG_FRAME_ATTR(dw_max_bit_rate, dwMaxBitRate, 32); UVCG_FRAME_ATTR(dw_max_video_frame_buffer_size, dwMaxVideoFrameBufferSize, 32); UVCG_FRAME_ATTR(dw_default_frame_interval, dwDefaultFrameInterval, 32); +UVCG_FRAME_ATTR(dw_bytes_perline, dwBytesPerLine, 32); #undef UVCG_FRAME_ATTR @@ -2034,7 +2045,7 @@ static ssize_t uvcg_frame_dw_frame_interval_show(struct config_item *item, int result, i; char *pg = page; - mutex_lock(su_mutex); /* for navigating configfs hierarchy */ + mutex_lock(su_mutex); /* for navigating configfs hierarchy */ opts_item = frm->item.ci_parent->ci_parent->ci_parent->ci_parent; opts = to_f_uvc_opts(opts_item); @@ -2104,7 +2115,7 @@ end: UVC_ATTR(uvcg_frame_, dw_frame_interval, dwFrameInterval); -static struct configfs_attribute *uvcg_frame_attrs[] = { +static struct configfs_attribute *uvcg_frame_attrs1[] = { &uvcg_frame_attr_b_frame_index, &uvcg_frame_attr_bm_capabilities, &uvcg_frame_attr_w_width, @@ -2117,12 +2128,31 @@ static struct configfs_attribute *uvcg_frame_attrs[] = { NULL, }; -static const struct config_item_type uvcg_frame_type = { +static struct configfs_attribute *uvcg_frame_attrs2[] = { + &uvcg_frame_attr_b_frame_index, + &uvcg_frame_attr_bm_capabilities, + &uvcg_frame_attr_w_width, + &uvcg_frame_attr_w_height, + &uvcg_frame_attr_dw_min_bit_rate, + &uvcg_frame_attr_dw_max_bit_rate, + &uvcg_frame_attr_dw_default_frame_interval, + &uvcg_frame_attr_dw_frame_interval, + &uvcg_frame_attr_dw_bytes_perline, + NULL, +}; + +static const struct config_item_type uvcg_frame_type1 = { .ct_item_ops = &uvcg_config_item_ops, - .ct_attrs = uvcg_frame_attrs, + .ct_attrs = uvcg_frame_attrs1, .ct_owner = THIS_MODULE, }; +static const struct config_item_type uvcg_frame_type2 = { + .ct_item_ops = &uvcg_config_item_ops, + .ct_attrs = uvcg_frame_attrs2, + .ct_owner = THIS_MODULE, +}; + static struct config_item *uvcg_frame_make(struct config_group *group, const char *name) { @@ -2144,6 +2174,7 @@ static struct config_item *uvcg_frame_make(struct config_group *group, h->frame.dw_max_bit_rate = 55296000; h->frame.dw_max_video_frame_buffer_size = 460800; h->frame.dw_default_frame_interval = 666666; + h->frame.dw_bytes_perline = 0; opts_item = group->cg_item.ci_parent->ci_parent->ci_parent; opts = to_f_uvc_opts(opts_item); @@ -2156,6 +2187,9 @@ static struct config_item *uvcg_frame_make(struct config_group *group, } else if (fmt->type == UVCG_MJPEG) { h->frame.b_descriptor_subtype = UVC_VS_FRAME_MJPEG; h->fmt_type = UVCG_MJPEG; + } else if (fmt->type == UVCG_FRAMEBASED) { + h->frame.b_descriptor_subtype = UVC_VS_FRAME_FRAME_BASED; + h->fmt_type = UVCG_FRAMEBASED; } else { mutex_unlock(&opts->lock); kfree(h); @@ -2174,7 +2208,10 @@ static struct config_item *uvcg_frame_make(struct config_group *group, ++fmt->num_frames; mutex_unlock(&opts->lock); - config_item_init_type_name(&h->item, name, &uvcg_frame_type); + if (fmt->type == UVCG_FRAMEBASED) + config_item_init_type_name(&h->item, name, &uvcg_frame_type2); + else + config_item_init_type_name(&h->item, name, &uvcg_frame_type1); return &h->item; } @@ -2214,9 +2251,6 @@ static void uvcg_format_set_indices(struct config_group *fmt) list_for_each_entry(ci, &fmt->cg_children, ci_entry) { struct uvcg_frame *frm; - if (ci->ci_type != &uvcg_frame_type) - continue; - frm = to_uvcg_frame(ci); frm->frame.b_frame_index = i++; } @@ -2260,6 +2294,8 @@ static ssize_t uvcg_uncompressed_guid_format_store(struct config_item *item, struct f_uvc_opts *opts; struct config_item *opts_item; struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex; + const struct uvc_format_desc *format; + u8 tmpguidFormat[sizeof(ch->desc.guidFormat)]; int ret; mutex_lock(su_mutex); /* for navigating configfs hierarchy */ @@ -2273,7 +2309,16 @@ static ssize_t uvcg_uncompressed_guid_format_store(struct config_item *item, goto end; } - memcpy(ch->desc.guidFormat, page, + memcpy(tmpguidFormat, page, + min(sizeof(tmpguidFormat), len)); + + format = uvc_format_by_guid(tmpguidFormat); + if (!format) { + ret = -EINVAL; + goto end; + } + + memcpy(ch->desc.guidFormat, tmpguidFormat, min(sizeof(ch->desc.guidFormat), len)); ret = sizeof(ch->desc.guidFormat); @@ -2666,6 +2711,251 @@ static const struct uvcg_config_group_type uvcg_mjpeg_grp_type = { }; /* ----------------------------------------------------------------------------- + * streaming/framebased/<NAME> + */ + +static struct configfs_group_operations uvcg_framebased_group_ops = { + .make_item = uvcg_frame_make, + .drop_item = uvcg_frame_drop, +}; + +#define UVCG_FRAMEBASED_ATTR_RO(cname, aname, bits) \ +static ssize_t uvcg_framebased_##cname##_show(struct config_item *item, \ + char *page) \ +{ \ + struct uvcg_framebased *u = to_uvcg_framebased(item); \ + struct f_uvc_opts *opts; \ + struct config_item *opts_item; \ + struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ + int result; \ + \ + mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ + \ + opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ + opts = to_f_uvc_opts(opts_item); \ + \ + mutex_lock(&opts->lock); \ + result = sprintf(page, "%u\n", le##bits##_to_cpu(u->desc.aname));\ + mutex_unlock(&opts->lock); \ + \ + mutex_unlock(su_mutex); \ + return result; \ +} \ + \ +UVC_ATTR_RO(uvcg_framebased_, cname, aname) + +#define UVCG_FRAMEBASED_ATTR(cname, aname, bits) \ +static ssize_t uvcg_framebased_##cname##_show(struct config_item *item, \ + char *page) \ +{ \ + struct uvcg_framebased *u = to_uvcg_framebased(item); \ + struct f_uvc_opts *opts; \ + struct config_item *opts_item; \ + struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ + int result; \ + \ + mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ + \ + opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ + opts = to_f_uvc_opts(opts_item); \ + \ + mutex_lock(&opts->lock); \ + result = sprintf(page, "%u\n", le##bits##_to_cpu(u->desc.aname));\ + mutex_unlock(&opts->lock); \ + \ + mutex_unlock(su_mutex); \ + return result; \ +} \ + \ +static ssize_t \ +uvcg_framebased_##cname##_store(struct config_item *item, \ + const char *page, size_t len) \ +{ \ + struct uvcg_framebased *u = to_uvcg_framebased(item); \ + struct f_uvc_opts *opts; \ + struct config_item *opts_item; \ + struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \ + int ret; \ + u8 num; \ + \ + mutex_lock(su_mutex); /* for navigating configfs hierarchy */ \ + \ + opts_item = u->fmt.group.cg_item.ci_parent->ci_parent->ci_parent;\ + opts = to_f_uvc_opts(opts_item); \ + \ + mutex_lock(&opts->lock); \ + if (u->fmt.linked || opts->refcnt) { \ + ret = -EBUSY; \ + goto end; \ + } \ + \ + ret = kstrtou8(page, 0, &num); \ + if (ret) \ + goto end; \ + \ + if (num > 255) { \ + ret = -EINVAL; \ + goto end; \ + } \ + u->desc.aname = num; \ + ret = len; \ +end: \ + mutex_unlock(&opts->lock); \ + mutex_unlock(su_mutex); \ + return ret; \ +} \ + \ +UVC_ATTR(uvcg_framebased_, cname, aname) + +UVCG_FRAMEBASED_ATTR_RO(b_format_index, bFormatIndex, 8); +UVCG_FRAMEBASED_ATTR_RO(b_bits_per_pixel, bBitsPerPixel, 8); +UVCG_FRAMEBASED_ATTR(b_default_frame_index, bDefaultFrameIndex, 8); +UVCG_FRAMEBASED_ATTR_RO(b_aspect_ratio_x, bAspectRatioX, 8); +UVCG_FRAMEBASED_ATTR_RO(b_aspect_ratio_y, bAspectRatioY, 8); +UVCG_FRAMEBASED_ATTR_RO(bm_interface_flags, bmInterfaceFlags, 8); + +#undef UVCG_FRAMEBASED_ATTR +#undef UVCG_FRAMEBASED_ATTR_RO + +static ssize_t uvcg_framebased_guid_format_show(struct config_item *item, + char *page) +{ + struct uvcg_framebased *ch = to_uvcg_framebased(item); + struct f_uvc_opts *opts; + struct config_item *opts_item; + struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex; + + mutex_lock(su_mutex); /* for navigating configfs hierarchy */ + + opts_item = ch->fmt.group.cg_item.ci_parent->ci_parent->ci_parent; + opts = to_f_uvc_opts(opts_item); + + mutex_lock(&opts->lock); + memcpy(page, ch->desc.guidFormat, sizeof(ch->desc.guidFormat)); + mutex_unlock(&opts->lock); + + mutex_unlock(su_mutex); + + return sizeof(ch->desc.guidFormat); +} + +static ssize_t uvcg_framebased_guid_format_store(struct config_item *item, + const char *page, size_t len) +{ + struct uvcg_framebased *ch = to_uvcg_framebased(item); + struct f_uvc_opts *opts; + struct config_item *opts_item; + struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex; + int ret; + + mutex_lock(su_mutex); /* for navigating configfs hierarchy */ + + opts_item = ch->fmt.group.cg_item.ci_parent->ci_parent->ci_parent; + opts = to_f_uvc_opts(opts_item); + + mutex_lock(&opts->lock); + if (ch->fmt.linked || opts->refcnt) { + ret = -EBUSY; + goto end; + } + + memcpy(ch->desc.guidFormat, page, + min(sizeof(ch->desc.guidFormat), len)); + ret = sizeof(ch->desc.guidFormat); + +end: + mutex_unlock(&opts->lock); + mutex_unlock(su_mutex); + return ret; +} + +UVC_ATTR(uvcg_framebased_, guid_format, guidFormat); + +static inline ssize_t +uvcg_framebased_bma_controls_show(struct config_item *item, char *page) +{ + struct uvcg_framebased *u = to_uvcg_framebased(item); + + return uvcg_format_bma_controls_show(&u->fmt, page); +} + +static inline ssize_t +uvcg_framebased_bma_controls_store(struct config_item *item, + const char *page, size_t len) +{ + struct uvcg_framebased *u = to_uvcg_framebased(item); + + return uvcg_format_bma_controls_store(&u->fmt, page, len); +} + +UVC_ATTR(uvcg_framebased_, bma_controls, bmaControls); + +static struct configfs_attribute *uvcg_framebased_attrs[] = { + &uvcg_framebased_attr_b_format_index, + &uvcg_framebased_attr_b_default_frame_index, + &uvcg_framebased_attr_b_bits_per_pixel, + &uvcg_framebased_attr_b_aspect_ratio_x, + &uvcg_framebased_attr_b_aspect_ratio_y, + &uvcg_framebased_attr_bm_interface_flags, + &uvcg_framebased_attr_bma_controls, + &uvcg_framebased_attr_guid_format, + NULL, +}; + +static const struct config_item_type uvcg_framebased_type = { + .ct_item_ops = &uvcg_config_item_ops, + .ct_group_ops = &uvcg_framebased_group_ops, + .ct_attrs = uvcg_framebased_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct config_group *uvcg_framebased_make(struct config_group *group, + const char *name) +{ + static char guid[] = { /*Declear frame based as H264 format*/ + 'H', '2', '6', '4', 0x00, 0x00, 0x10, 0x00, + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 + }; + struct uvcg_framebased *h; + + h = kzalloc(sizeof(*h), GFP_KERNEL); + if (!h) + return ERR_PTR(-ENOMEM); + + h->desc.bLength = UVC_DT_FORMAT_FRAMEBASED_SIZE; + h->desc.bDescriptorType = USB_DT_CS_INTERFACE; + h->desc.bDescriptorSubType = UVC_VS_FORMAT_FRAME_BASED; + memcpy(h->desc.guidFormat, guid, sizeof(guid)); + h->desc.bBitsPerPixel = 0; + h->desc.bDefaultFrameIndex = 1; + h->desc.bAspectRatioX = 0; + h->desc.bAspectRatioY = 0; + h->desc.bmInterfaceFlags = 0; + h->desc.bCopyProtect = 0; + h->desc.bVariableSize = 1; + + INIT_LIST_HEAD(&h->fmt.frames); + h->fmt.type = UVCG_FRAMEBASED; + config_group_init_type_name(&h->fmt.group, name, + &uvcg_framebased_type); + + return &h->fmt.group; +} + +static struct configfs_group_operations uvcg_framebased_grp_ops = { + .make_group = uvcg_framebased_make, +}; + +static const struct uvcg_config_group_type uvcg_framebased_grp_type = { + .type = { + .ct_item_ops = &uvcg_config_item_ops, + .ct_group_ops = &uvcg_framebased_grp_ops, + .ct_owner = THIS_MODULE, + }, + .name = "framebased", +}; + +/* ----------------------------------------------------------------------------- * streaming/color_matching/default */ @@ -2900,6 +3190,7 @@ static int __uvcg_iter_strm_cls(struct uvcg_streaming_header *h, if (ret) return ret; grp = &f->fmt->group; + j = 0; list_for_each_entry(item, &grp->cg_children, ci_entry) { frm = to_uvcg_frame(item); ret = fun(frm, priv2, priv3, j++, UVCG_FRAME); @@ -2953,6 +3244,11 @@ static int __uvcg_cnt_strm(void *priv1, void *priv2, void *priv3, int n, container_of(fmt, struct uvcg_mjpeg, fmt); *size += sizeof(m->desc); + } else if (fmt->type == UVCG_FRAMEBASED) { + struct uvcg_framebased *f = + container_of(fmt, struct uvcg_framebased, fmt); + + *size += sizeof(f->desc); } else { return -EINVAL; } @@ -2963,6 +3259,11 @@ static int __uvcg_cnt_strm(void *priv1, void *priv2, void *priv3, int n, int sz = sizeof(frm->dw_frame_interval); *size += sizeof(frm->frame); + /* + * framebased has duplicate member with uncompressed and + * mjpeg, so minus it + */ + *size -= sizeof(u32); *size += frm->frame.b_frame_interval_type * sz; } break; @@ -2979,6 +3280,27 @@ static int __uvcg_cnt_strm(void *priv1, void *priv2, void *priv3, int n, return 0; } +static int __uvcg_copy_framebased_desc(void *dest, struct uvcg_frame *frm, + int sz) +{ + struct uvc_frame_framebased *desc = dest; + + desc->bLength = frm->frame.b_length; + desc->bDescriptorType = frm->frame.b_descriptor_type; + desc->bDescriptorSubType = frm->frame.b_descriptor_subtype; + desc->bFrameIndex = frm->frame.b_frame_index; + desc->bmCapabilities = frm->frame.bm_capabilities; + desc->wWidth = frm->frame.w_width; + desc->wHeight = frm->frame.w_height; + desc->dwMinBitRate = frm->frame.dw_min_bit_rate; + desc->dwMaxBitRate = frm->frame.dw_max_bit_rate; + desc->dwDefaultFrameInterval = frm->frame.dw_default_frame_interval; + desc->bFrameIntervalType = frm->frame.b_frame_interval_type; + desc->dwBytesPerLine = frm->frame.dw_bytes_perline; + + return 0; +} + /* * Fill an array of streaming descriptors. * @@ -3033,6 +3355,15 @@ static int __uvcg_fill_strm(void *priv1, void *priv2, void *priv3, int n, m->desc.bNumFrameDescriptors = fmt->num_frames; memcpy(*dest, &m->desc, sizeof(m->desc)); *dest += sizeof(m->desc); + } else if (fmt->type == UVCG_FRAMEBASED) { + struct uvcg_framebased *f = + container_of(fmt, struct uvcg_framebased, + fmt); + + f->desc.bFormatIndex = n + 1; + f->desc.bNumFrameDescriptors = fmt->num_frames; + memcpy(*dest, &f->desc, sizeof(f->desc)); + *dest += sizeof(f->desc); } else { return -EINVAL; } @@ -3042,8 +3373,11 @@ static int __uvcg_fill_strm(void *priv1, void *priv2, void *priv3, int n, struct uvcg_frame *frm = priv1; struct uvc_descriptor_header *h = *dest; - sz = sizeof(frm->frame); - memcpy(*dest, &frm->frame, sz); + sz = sizeof(frm->frame) - 4; + if (frm->fmt_type != UVCG_FRAMEBASED) + memcpy(*dest, &frm->frame, sz); + else + __uvcg_copy_framebased_desc(*dest, frm, sz); *dest += sz; sz = frm->frame.b_frame_interval_type * sizeof(*frm->dw_frame_interval); @@ -3054,7 +3388,10 @@ static int __uvcg_fill_strm(void *priv1, void *priv2, void *priv3, int n, frm->frame.b_frame_interval_type); else if (frm->fmt_type == UVCG_MJPEG) h->bLength = UVC_DT_FRAME_MJPEG_SIZE( - frm->frame.b_frame_interval_type); + frm->frame.b_frame_interval_type); + else if (frm->fmt_type == UVCG_FRAMEBASED) + h->bLength = UVC_DT_FRAME_FRAMEBASED_SIZE( + frm->frame.b_frame_interval_type); } break; case UVCG_COLOR_MATCHING: { @@ -3273,6 +3610,7 @@ static const struct uvcg_config_group_type uvcg_streaming_grp_type = { &uvcg_streaming_header_grp_type, &uvcg_uncompressed_grp_type, &uvcg_mjpeg_grp_type, + &uvcg_framebased_grp_type, &uvcg_color_matching_grp_type, &uvcg_streaming_class_grp_type, NULL, diff --git a/drivers/usb/gadget/function/uvc_configfs.h b/drivers/usb/gadget/function/uvc_configfs.h index c6a690158138..2f78cd4f396f 100644 --- a/drivers/usb/gadget/function/uvc_configfs.h +++ b/drivers/usb/gadget/function/uvc_configfs.h @@ -49,6 +49,7 @@ container_of(group_ptr, struct uvcg_color_matching, group) enum uvcg_format_type { UVCG_UNCOMPRESSED = 0, UVCG_MJPEG, + UVCG_FRAMEBASED, }; struct uvcg_format { @@ -105,6 +106,7 @@ struct uvcg_frame { u32 dw_max_video_frame_buffer_size; u32 dw_default_frame_interval; u8 b_frame_interval_type; + u32 dw_bytes_perline; } __attribute__((packed)) frame; u32 *dw_frame_interval; }; @@ -143,6 +145,20 @@ static inline struct uvcg_mjpeg *to_uvcg_mjpeg(struct config_item *item) } /* ----------------------------------------------------------------------------- + * streaming/framebased/<NAME> + */ + +struct uvcg_framebased { + struct uvcg_format fmt; + struct uvc_format_framebased desc; +}; + +static inline struct uvcg_framebased *to_uvcg_framebased(struct config_item *item) +{ + return container_of(to_uvcg_format(item), struct uvcg_framebased, fmt); +} + +/* ----------------------------------------------------------------------------- * control/extensions/<NAME> */ diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c index 0aa3d7e1f3cc..9a1bbd79ff5a 100644 --- a/drivers/usb/gadget/function/uvc_queue.c +++ b/drivers/usb/gadget/function/uvc_queue.c @@ -21,6 +21,7 @@ #include <media/videobuf2-vmalloc.h> #include "uvc.h" +#include "uvc_video.h" /* ------------------------------------------------------------------------ * Video buffers queue management. @@ -44,33 +45,23 @@ static int uvc_queue_setup(struct vb2_queue *vq, { struct uvc_video_queue *queue = vb2_get_drv_priv(vq); struct uvc_video *video = container_of(queue, struct uvc_video, queue); - unsigned int req_size; - unsigned int nreq; if (*nbuffers > UVC_MAX_VIDEO_BUFFERS) *nbuffers = UVC_MAX_VIDEO_BUFFERS; + if (*nbuffers < UVCG_STREAMING_MIN_BUFFERS) + *nbuffers = UVCG_STREAMING_MIN_BUFFERS; *nplanes = 1; sizes[0] = video->imagesize; - req_size = video->ep->maxpacket - * max_t(unsigned int, video->ep->maxburst, 1) - * (video->ep->mult); - - /* We divide by two, to increase the chance to run - * into fewer requests for smaller framesizes. - */ - nreq = DIV_ROUND_UP(DIV_ROUND_UP(sizes[0], 2), req_size); - nreq = clamp(nreq, 4U, 64U); - video->uvc_num_requests = nreq; - return 0; } static int uvc_buffer_prepare(struct vb2_buffer *vb) { struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue); + struct uvc_video *video = container_of(queue, struct uvc_video, queue); struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct uvc_buffer *buf = container_of(vbuf, struct uvc_buffer, buf); @@ -91,10 +82,15 @@ static int uvc_buffer_prepare(struct vb2_buffer *vb) buf->mem = vb2_plane_vaddr(vb, 0); } buf->length = vb2_plane_size(vb, 0); - if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { buf->bytesused = 0; - else + } else { buf->bytesused = vb2_get_plane_payload(vb, 0); + buf->req_payload_size = + DIV_ROUND_UP(buf->bytesused + + (video->reqs_per_frame * UVCG_REQUEST_HEADER_LEN), + video->reqs_per_frame); + } return 0; } @@ -126,8 +122,6 @@ static const struct vb2_ops uvc_queue_qops = { .queue_setup = uvc_queue_setup, .buf_prepare = uvc_buffer_prepare, .buf_queue = uvc_buffer_queue, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, }; int uvcg_queue_init(struct uvc_video_queue *queue, struct device *dev, enum v4l2_buf_type type, diff --git a/drivers/usb/gadget/function/uvc_queue.h b/drivers/usb/gadget/function/uvc_queue.h index 41f87b917f6b..b54becc570a3 100644 --- a/drivers/usb/gadget/function/uvc_queue.h +++ b/drivers/usb/gadget/function/uvc_queue.h @@ -39,6 +39,8 @@ struct uvc_buffer { unsigned int offset; unsigned int length; unsigned int bytesused; + /* req_payload_size: only used with isoc */ + unsigned int req_payload_size; }; #define UVC_QUEUE_DISCONNECTED (1 << 0) diff --git a/drivers/usb/gadget/function/uvc_trace.c b/drivers/usb/gadget/function/uvc_trace.c new file mode 100644 index 000000000000..d384f6d8221a --- /dev/null +++ b/drivers/usb/gadget/function/uvc_trace.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * trace.c - USB UVC Gadget Trace Support + * + * Copyright (C) 2024 Pengutronix e.K. + * + * Author: Michael Grzeschik <m.grzeschik@pengutronix.de> + */ + +#define CREATE_TRACE_POINTS +#include "uvc_trace.h" diff --git a/drivers/usb/gadget/function/uvc_trace.h b/drivers/usb/gadget/function/uvc_trace.h new file mode 100644 index 000000000000..04c33cf43cc2 --- /dev/null +++ b/drivers/usb/gadget/function/uvc_trace.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * trace.h - USB UVC Gadget Trace Support + * + * Copyright (C) 2024 Pengutronix e.K. + * + * Author: Michael Grzeschik <m.grzeschik@pengutronix.de> + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM uvcg + +#if !defined(__UVCG_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define __UVCG_TRACE_H + +#include <linux/types.h> +#include <linux/tracepoint.h> +#include <linux/usb/gadget.h> +#include <asm/byteorder.h> + +DECLARE_EVENT_CLASS(uvcg_video_req, + TP_PROTO(struct usb_request *req, u32 queued), + TP_ARGS(req, queued), + TP_STRUCT__entry( + __field(struct usb_request *, req) + __field(u32, length) + __field(u32, queued) + ), + TP_fast_assign( + __entry->req = req; + __entry->length = req->length; + __entry->queued = queued; + ), + TP_printk("req %p length %u queued %u", + __entry->req, + __entry->length, + __entry->queued) +); + +DEFINE_EVENT(uvcg_video_req, uvcg_video_complete, + TP_PROTO(struct usb_request *req, u32 queued), + TP_ARGS(req, queued) +); + +DEFINE_EVENT(uvcg_video_req, uvcg_video_queue, + TP_PROTO(struct usb_request *req, u32 queued), + TP_ARGS(req, queued) +); + +#endif /* __UVCG_TRACE_H */ + +/* this part has to be here */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE uvc_trace + +#include <trace/define_trace.h> diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index c7e5fa4f29e0..fc9a8d31a1e9 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -31,14 +31,23 @@ static const struct uvc_format_desc *to_uvc_format(struct uvcg_format *uformat) { char guid[16] = UVC_GUID_FORMAT_MJPEG; const struct uvc_format_desc *format; - struct uvcg_uncompressed *unc; if (uformat->type == UVCG_UNCOMPRESSED) { + struct uvcg_uncompressed *unc; + unc = to_uvcg_uncompressed(&uformat->group.cg_item); if (!unc) return ERR_PTR(-EINVAL); memcpy(guid, unc->desc.guidFormat, sizeof(guid)); + } else if (uformat->type == UVCG_FRAMEBASED) { + struct uvcg_framebased *unc; + + unc = to_uvcg_framebased(&uformat->group.cg_item); + if (!unc) + return ERR_PTR(-EINVAL); + + memcpy(guid, unc->desc.guidFormat, sizeof(guid)); } format = uvc_format_by_guid(guid); @@ -121,6 +130,9 @@ static struct uvcg_format *find_format_by_pix(struct uvc_device *uvc, list_for_each_entry(format, &uvc->header->formats, entry) { const struct uvc_format_desc *fmtdesc = to_uvc_format(format->fmt); + if (IS_ERR(fmtdesc)) + continue; + if (fmtdesc->fcc == pixelformat) { uformat = format->fmt; break; @@ -240,6 +252,7 @@ uvc_v4l2_try_format(struct file *file, void *fh, struct v4l2_format *fmt) struct uvc_video *video = &uvc->video; struct uvcg_format *uformat; struct uvcg_frame *uframe; + const struct uvc_format_desc *fmtdesc; u8 *fcc; if (fmt->type != video->queue.queue.type) @@ -260,12 +273,29 @@ uvc_v4l2_try_format(struct file *file, void *fh, struct v4l2_format *fmt) if (!uframe) return -EINVAL; - fmt->fmt.pix.width = uframe->frame.w_width; - fmt->fmt.pix.height = uframe->frame.w_height; + if (uformat->type == UVCG_UNCOMPRESSED) { + struct uvcg_uncompressed *u = + to_uvcg_uncompressed(&uformat->group.cg_item); + if (!u) + return 0; + + v4l2_fill_pixfmt(&fmt->fmt.pix, fmt->fmt.pix.pixelformat, + uframe->frame.w_width, uframe->frame.w_height); + + if (fmt->fmt.pix.sizeimage != (uvc_v4l2_get_bytesperline(uformat, uframe) * + uframe->frame.w_height)) + return -EINVAL; + } else { + fmt->fmt.pix.width = uframe->frame.w_width; + fmt->fmt.pix.height = uframe->frame.w_height; + fmt->fmt.pix.bytesperline = uvc_v4l2_get_bytesperline(uformat, uframe); + fmt->fmt.pix.sizeimage = uvc_get_frame_size(uformat, uframe); + fmtdesc = to_uvc_format(uformat); + if (IS_ERR(fmtdesc)) + return PTR_ERR(fmtdesc); + fmt->fmt.pix.pixelformat = fmtdesc->fcc; + } fmt->fmt.pix.field = V4L2_FIELD_NONE; - fmt->fmt.pix.bytesperline = uvc_v4l2_get_bytesperline(uformat, uframe); - fmt->fmt.pix.sizeimage = uvc_get_frame_size(uformat, uframe); - fmt->fmt.pix.pixelformat = to_uvc_format(uformat)->fcc; fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; fmt->fmt.pix.priv = 0; @@ -293,6 +323,56 @@ uvc_v4l2_set_format(struct file *file, void *fh, struct v4l2_format *fmt) return ret; } +static int uvc_v4l2_g_parm(struct file *file, void *fh, + struct v4l2_streamparm *parm) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_device *uvc = video_get_drvdata(vdev); + struct uvc_video *video = &uvc->video; + struct v4l2_fract timeperframe; + + if (!V4L2_TYPE_IS_OUTPUT(parm->type)) + return -EINVAL; + + /* Return the actual frame period. */ + timeperframe.numerator = video->interval; + timeperframe.denominator = 10000000; + v4l2_simplify_fraction(&timeperframe.numerator, + &timeperframe.denominator, 8, 333); + + uvcg_dbg(&uvc->func, "Getting frame interval of %u/%u (%u)\n", + timeperframe.numerator, timeperframe.denominator, + video->interval); + + parm->parm.output.timeperframe = timeperframe; + parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME; + + return 0; +} + +static int uvc_v4l2_s_parm(struct file *file, void *fh, + struct v4l2_streamparm *parm) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_device *uvc = video_get_drvdata(vdev); + struct uvc_video *video = &uvc->video; + struct v4l2_fract timeperframe; + + if (!V4L2_TYPE_IS_OUTPUT(parm->type)) + return -EINVAL; + + timeperframe = parm->parm.output.timeperframe; + + video->interval = v4l2_fraction_to_interval(timeperframe.numerator, + timeperframe.denominator); + + uvcg_dbg(&uvc->func, "Setting frame interval to %u/%u (%u)\n", + timeperframe.numerator, timeperframe.denominator, + video->interval); + + return 0; +} + static int uvc_v4l2_enum_frameintervals(struct file *file, void *fh, struct v4l2_frmivalenum *fival) @@ -375,6 +455,9 @@ uvc_v4l2_enum_format(struct file *file, void *fh, struct v4l2_fmtdesc *f) return -EINVAL; fmtdesc = to_uvc_format(uformat); + if (IS_ERR(fmtdesc)) + return PTR_ERR(fmtdesc); + f->pixelformat = fmtdesc->fcc; return 0; @@ -472,6 +555,9 @@ uvc_v4l2_streamoff(struct file *file, void *fh, enum v4l2_buf_type type) if (ret < 0) return ret; + if (uvc->state != UVC_STATE_STREAMING) + return 0; + uvc->state = UVC_STATE_CONNECTED; uvc_function_setup_continue(uvc, 1); return 0; @@ -563,6 +649,8 @@ const struct v4l2_ioctl_ops uvc_v4l2_ioctl_ops = { .vidioc_dqbuf = uvc_v4l2_dqbuf, .vidioc_streamon = uvc_v4l2_streamon, .vidioc_streamoff = uvc_v4l2_streamoff, + .vidioc_s_parm = uvc_v4l2_s_parm, + .vidioc_g_parm = uvc_v4l2_g_parm, .vidioc_subscribe_event = uvc_v4l2_subscribe_event, .vidioc_unsubscribe_event = uvc_v4l2_unsubscribe_event, .vidioc_default = uvc_v4l2_ioctl_default, diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c index d41f5f31dadd..fb77b0b21790 100644 --- a/drivers/usb/gadget/function/uvc_video.c +++ b/drivers/usb/gadget/function/uvc_video.c @@ -12,13 +12,14 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb/video.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <media/v4l2-dev.h> #include "uvc.h" #include "uvc_queue.h" #include "uvc_video.h" +#include "uvc_trace.h" /* -------------------------------------------------------------------------- * Video codecs @@ -78,7 +79,7 @@ uvc_video_encode_data(struct uvc_video *video, struct uvc_buffer *buf, /* Copy video data to the USB buffer. */ mem = buf->mem + queue->buf_used; - nbytes = min((unsigned int)len, buf->bytesused - queue->buf_used); + nbytes = min_t(unsigned int, len, buf->bytesused - queue->buf_used); memcpy(data, mem, nbytes); queue->buf_used += nbytes; @@ -104,7 +105,7 @@ uvc_video_encode_bulk(struct usb_request *req, struct uvc_video *video, } /* Process video data. */ - len = min((int)(video->max_payload_size - video->payload_size), len); + len = min_t(int, video->max_payload_size - video->payload_size, len); ret = uvc_video_encode_data(video, buf, mem, len); video->payload_size += ret; @@ -136,7 +137,7 @@ uvc_video_encode_isoc_sg(struct usb_request *req, struct uvc_video *video, unsigned int pending = buf->bytesused - video->queue.buf_used; struct uvc_request *ureq = req->context; struct scatterlist *sg, *iter; - unsigned int len = video->req_size; + unsigned int len = buf->req_payload_size; unsigned int sg_left, part = 0; unsigned int i; int header_len; @@ -146,15 +147,15 @@ uvc_video_encode_isoc_sg(struct usb_request *req, struct uvc_video *video, /* Init the header. */ header_len = uvc_video_encode_header(video, buf, ureq->header, - video->req_size); + buf->req_payload_size); sg_set_buf(sg, ureq->header, header_len); len -= header_len; if (pending <= len) len = pending; - req->length = (len == pending) ? - len + header_len : video->req_size; + req->length = (len == pending) ? len + header_len : + buf->req_payload_size; /* Init the pending sgs with payload */ sg = sg_next(sg); @@ -202,7 +203,7 @@ uvc_video_encode_isoc(struct usb_request *req, struct uvc_video *video, { void *mem = req->buf; struct uvc_request *ureq = req->context; - int len = video->req_size; + int len = buf->req_payload_size; int ret; /* Add the header. */ @@ -214,7 +215,7 @@ uvc_video_encode_isoc(struct usb_request *req, struct uvc_video *video, ret = uvc_video_encode_data(video, buf, mem, len); len -= ret; - req->length = video->req_size - len; + req->length = buf->req_payload_size - len; if (buf->bytesused == video->queue.buf_used || video->queue.flags & UVC_QUEUE_DROP_INCOMPLETE) { @@ -269,6 +270,10 @@ static int uvcg_video_ep_queue(struct uvc_video *video, struct usb_request *req) } } + atomic_inc(&video->queued); + + trace_uvcg_video_queue(req, atomic_read(&video->queued)); + return ret; } @@ -304,7 +309,7 @@ static int uvcg_video_usb_req_queue(struct uvc_video *video, */ if (list_empty(&video->req_free) || ureq->last_buf || !(video->req_int_count % - DIV_ROUND_UP(video->uvc_num_requests, 4))) { + min(DIV_ROUND_UP(video->uvc_num_requests, 4), UVCG_REQ_MAX_INT_COUNT))) { video->req_int_count = 0; req->no_interrupt = 0; } else { @@ -322,50 +327,6 @@ static int uvcg_video_usb_req_queue(struct uvc_video *video, return 0; } -/* - * Must only be called from uvcg_video_enable - since after that we only want to - * queue requests to the endpoint from the uvc_video_complete complete handler. - * This function is needed in order to 'kick start' the flow of requests from - * gadget driver to the usb controller. - */ -static void uvc_video_ep_queue_initial_requests(struct uvc_video *video) -{ - struct usb_request *req = NULL; - unsigned long flags = 0; - unsigned int count = 0; - int ret = 0; - - /* - * We only queue half of the free list since we still want to have - * some free usb_requests in the free list for the video_pump async_wq - * thread to encode uvc buffers into. Otherwise we could get into a - * situation where the free list does not have any usb requests to - * encode into - we always end up queueing 0 length requests to the - * end point. - */ - unsigned int half_list_size = video->uvc_num_requests / 2; - - spin_lock_irqsave(&video->req_lock, flags); - /* - * Take these requests off the free list and queue them all to the - * endpoint. Since we queue 0 length requests with the req_lock held, - * there isn't any 'data' race involved here with the complete handler. - */ - while (count < half_list_size) { - req = list_first_entry(&video->req_free, struct usb_request, - list); - list_del(&req->list); - req->length = 0; - ret = uvcg_video_ep_queue(video, req); - if (ret < 0) { - uvcg_queue_cancel(&video->queue, 0); - break; - } - count++; - } - spin_unlock_irqrestore(&video->req_lock, flags); -} - static void uvc_video_complete(struct usb_ep *ep, struct usb_request *req) { @@ -373,12 +334,10 @@ uvc_video_complete(struct usb_ep *ep, struct usb_request *req) struct uvc_video *video = ureq->video; struct uvc_video_queue *queue = &video->queue; struct uvc_buffer *last_buf; - struct usb_request *to_queue = req; unsigned long flags; - bool is_bulk = video->max_payload_size; - int ret = 0; spin_lock_irqsave(&video->req_lock, flags); + atomic_dec(&video->queued); if (!video->is_enabled) { /* * When is_enabled is false, uvcg_video_disable() ensures @@ -438,51 +397,87 @@ uvc_video_complete(struct usb_ep *ep, struct usb_request *req) return; } + list_add_tail(&req->list, &video->req_free); /* - * Here we check whether any request is available in the ready - * list. If it is, queue it to the ep and add the current - * usb_request to the req_free list - for video_pump to fill in. - * Otherwise, just use the current usb_request to queue a 0 - * length request to the ep. Since we always add to the req_free - * list if we dequeue from the ready list, there will never - * be a situation where the req_free list is completely out of - * requests and cannot recover. + * Queue work to the wq as well since it is possible that a + * buffer may not have been completely encoded with the set of + * in-flight usb requests for whih the complete callbacks are + * firing. + * In that case, if we do not queue work to the worker thread, + * the buffer will never be marked as complete - and therefore + * not be returned to userpsace. As a result, + * dequeue -> queue -> dequeue flow of uvc buffers will not + * happen. Since there are is a new free request wake up the pump. */ - to_queue->length = 0; - if (!list_empty(&video->req_ready)) { - to_queue = list_first_entry(&video->req_ready, - struct usb_request, list); - list_del(&to_queue->list); - list_add_tail(&req->list, &video->req_free); + queue_work(video->async_wq, &video->pump); + + trace_uvcg_video_complete(req, atomic_read(&video->queued)); + + spin_unlock_irqrestore(&video->req_lock, flags); + + kthread_queue_work(video->kworker, &video->hw_submit); +} + +static void uvcg_video_hw_submit(struct kthread_work *work) +{ + struct uvc_video *video = container_of(work, struct uvc_video, hw_submit); + bool is_bulk = video->max_payload_size; + unsigned long flags; + struct usb_request *req; + int ret = 0; + + while (true) { + if (!video->ep->enabled) + return; + spin_lock_irqsave(&video->req_lock, flags); /* - * Queue work to the wq as well since it is possible that a - * buffer may not have been completely encoded with the set of - * in-flight usb requests for whih the complete callbacks are - * firing. - * In that case, if we do not queue work to the worker thread, - * the buffer will never be marked as complete - and therefore - * not be returned to userpsace. As a result, - * dequeue -> queue -> dequeue flow of uvc buffers will not - * happen. + * Here we check whether any request is available in the ready + * list. If it is, queue it to the ep and add the current + * usb_request to the req_free list - for video_pump to fill in. + * Otherwise, just use the current usb_request to queue a 0 + * length request to the ep. Since we always add to the req_free + * list if we dequeue from the ready list, there will never + * be a situation where the req_free list is completely out of + * requests and cannot recover. */ - queue_work(video->async_wq, &video->pump); - } - /* - * Queue to the endpoint. The actual queueing to ep will - * only happen on one thread - the async_wq for bulk endpoints - * and this thread for isoc endpoints. - */ - ret = uvcg_video_usb_req_queue(video, to_queue, !is_bulk); - if (ret < 0) { + if (!list_empty(&video->req_ready)) { + req = list_first_entry(&video->req_ready, + struct usb_request, list); + } else { + if (list_empty(&video->req_free) || + (atomic_read(&video->queued) > UVCG_REQ_MAX_ZERO_COUNT)) { + spin_unlock_irqrestore(&video->req_lock, flags); + + return; + } + req = list_first_entry(&video->req_free, struct usb_request, + list); + req->length = 0; + } + list_del(&req->list); + /* - * Endpoint error, but the stream is still enabled. - * Put request back in req_free for it to be cleaned - * up later. + * Queue to the endpoint. The actual queueing to ep will + * only happen on one thread - the async_wq for bulk endpoints + * and this thread for isoc endpoints. */ - list_add_tail(&to_queue->list, &video->req_free); - } + ret = uvcg_video_usb_req_queue(video, req, !is_bulk); + if (ret < 0) { + /* + * Endpoint error, but the stream is still enabled. + * Put request back in req_free for it to be cleaned + * up later. + */ + list_add_tail(&req->list, &video->req_free); + /* + * There is a new free request - wake up the pump. + */ + queue_work(video->async_wq, &video->pump); - spin_unlock_irqrestore(&video->req_lock, flags); + } + + spin_unlock_irqrestore(&video->req_lock, flags); + } } static int @@ -496,23 +491,71 @@ uvc_video_free_requests(struct uvc_video *video) INIT_LIST_HEAD(&video->ureqs); INIT_LIST_HEAD(&video->req_free); INIT_LIST_HEAD(&video->req_ready); - video->req_size = 0; return 0; } +static void +uvc_video_prep_requests(struct uvc_video *video) +{ + struct uvc_device *uvc = container_of(video, struct uvc_device, video); + struct usb_composite_dev *cdev = uvc->func.config->cdev; + unsigned int interval_duration = video->ep->desc->bInterval * 1250; + unsigned int max_req_size, req_size, header_size; + unsigned int nreq; + + max_req_size = video->ep->maxpacket + * max_t(unsigned int, video->ep->maxburst, 1) + * (video->ep->mult); + + if (!usb_endpoint_xfer_isoc(video->ep->desc)) { + video->req_size = max_req_size; + video->reqs_per_frame = video->uvc_num_requests = + DIV_ROUND_UP(video->imagesize, max_req_size); + + return; + } + + if (cdev->gadget->speed < USB_SPEED_HIGH) + interval_duration = video->ep->desc->bInterval * 10000; + + nreq = DIV_ROUND_UP(video->interval, interval_duration); + + header_size = nreq * UVCG_REQUEST_HEADER_LEN; + + req_size = DIV_ROUND_UP(video->imagesize + header_size, nreq); + + if (req_size > max_req_size) { + /* The prepared interval length and expected buffer size + * is not possible to stream with the currently configured + * isoc bandwidth. Fallback to the maximum. + */ + req_size = max_req_size; + } + video->req_size = req_size; + + /* We need to compensate the amount of requests to be + * allocated with the maximum amount of zero length requests. + * Since it is possible that hw_submit will initially + * enqueue some zero length requests and we then will not be + * able to fully encode one frame. + */ + video->uvc_num_requests = nreq + UVCG_REQ_MAX_ZERO_COUNT; + video->reqs_per_frame = nreq; +} + static int uvc_video_alloc_requests(struct uvc_video *video) { struct uvc_request *ureq; - unsigned int req_size; unsigned int i; int ret = -ENOMEM; - BUG_ON(video->req_size); - - req_size = video->ep->maxpacket - * max_t(unsigned int, video->ep->maxburst, 1) - * (video->ep->mult); + /* + * calculate in uvc_video_prep_requests + * - video->uvc_num_requests + * - video->req_size + */ + uvc_video_prep_requests(video); for (i = 0; i < video->uvc_num_requests; i++) { ureq = kzalloc(sizeof(struct uvc_request), GFP_KERNEL); @@ -523,7 +566,7 @@ uvc_video_alloc_requests(struct uvc_video *video) list_add_tail(&ureq->list, &video->ureqs); - ureq->req_buffer = kmalloc(req_size, GFP_KERNEL); + ureq->req_buffer = kmalloc(video->req_size, GFP_KERNEL); if (ureq->req_buffer == NULL) goto error; @@ -541,12 +584,10 @@ uvc_video_alloc_requests(struct uvc_video *video) list_add_tail(&ureq->req->list, &video->req_free); /* req_size/PAGE_SIZE + 1 for overruns and + 1 for header */ sg_alloc_table(&ureq->sgt, - DIV_ROUND_UP(req_size - UVCG_REQUEST_HEADER_LEN, + DIV_ROUND_UP(video->req_size - UVCG_REQUEST_HEADER_LEN, PAGE_SIZE) + 2, GFP_KERNEL); } - video->req_size = req_size; - return 0; error: @@ -699,7 +740,6 @@ uvcg_video_disable(struct uvc_video *video) INIT_LIST_HEAD(&video->ureqs); INIT_LIST_HEAD(&video->req_free); INIT_LIST_HEAD(&video->req_ready); - video->req_size = 0; spin_unlock_irqrestore(&video->req_lock, flags); /* @@ -752,7 +792,10 @@ int uvcg_video_enable(struct uvc_video *video) video->req_int_count = 0; - uvc_video_ep_queue_initial_requests(video); + atomic_set(&video->queued, 0); + + kthread_queue_work(video->kworker, &video->hw_submit); + queue_work(video->async_wq, &video->pump); return ret; } @@ -774,12 +817,24 @@ int uvcg_video_init(struct uvc_video *video, struct uvc_device *uvc) if (!video->async_wq) return -EINVAL; + /* Allocate a kthread for asynchronous hw submit handler. */ + video->kworker = kthread_run_worker(0, "UVCG"); + if (IS_ERR(video->kworker)) { + uvcg_err(&video->uvc->func, "failed to create UVCG kworker\n"); + return PTR_ERR(video->kworker); + } + + kthread_init_work(&video->hw_submit, uvcg_video_hw_submit); + + sched_set_fifo(video->kworker->task); + video->uvc = uvc; video->fcc = V4L2_PIX_FMT_YUYV; video->bpp = 16; video->width = 320; video->height = 240; video->imagesize = 320 * 240 * 2; + video->interval = 666666; /* Initialize the video buffers queue. */ uvcg_queue_init(&video->queue, uvc->v4l2_dev.dev->parent, diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c index b62e45235e8e..d70fb5bc2357 100644 --- a/drivers/usb/gadget/legacy/dbgp.c +++ b/drivers/usb/gadget/legacy/dbgp.c @@ -434,6 +434,7 @@ static void __exit dbgp_exit(void) } MODULE_AUTHOR("Stephane Duverger"); +MODULE_DESCRIPTION("EHCI Debug Port device gadget"); MODULE_LICENSE("GPL"); module_init(dbgp_init); module_exit(dbgp_exit); diff --git a/drivers/usb/gadget/legacy/gmidi.c b/drivers/usb/gadget/legacy/gmidi.c index 265c392810d7..e4a419b19f45 100644 --- a/drivers/usb/gadget/legacy/gmidi.c +++ b/drivers/usb/gadget/legacy/gmidi.c @@ -31,6 +31,7 @@ /*-------------------------------------------------------------------------*/ MODULE_AUTHOR("Ben Williamson"); +MODULE_DESCRIPTION("USB MIDI Gadget Driver"); MODULE_LICENSE("GPL v2"); static const char longname[] = "MIDI Gadget"; diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c index 4ca67b2f8f24..3684546e8801 100644 --- a/drivers/usb/gadget/legacy/hid.c +++ b/drivers/usb/gadget/legacy/hid.c @@ -261,7 +261,7 @@ static struct usb_composite_driver hidg_driver = { }; static struct platform_driver hidg_plat_driver = { - .remove_new = hidg_plat_driver_remove, + .remove = hidg_plat_driver_remove, .driver = { .name = "hidg", }, diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 03179b1880fd..b6a30d88a800 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -20,6 +20,7 @@ #include <linux/uaccess.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/poll.h> #include <linux/kthread.h> #include <linux/aio.h> @@ -705,7 +706,6 @@ static const struct file_operations ep_io_operations = { .open = ep_open, .release = ep_release, - .llseek = no_llseek, .unlocked_ioctl = ep_ioctl, .read_iter = ep_read_iter, .write_iter = ep_write_iter, @@ -1183,7 +1183,7 @@ ep0_fasync (int f, struct file *fd, int on) { struct dev_data *dev = fd->private_data; // caller must F_SETOWN before signal delivery happens - VDEBUG (dev, "%s %s\n", __func__, on ? "on" : "off"); + VDEBUG(dev, "%s %s\n", __func__, str_on_off(on)); return fasync_helper (f, fd, on, &dev->fasync); } @@ -1939,7 +1939,6 @@ gadget_dev_open (struct inode *inode, struct file *fd) } static const struct file_operations ep0_operations = { - .llseek = no_llseek, .open = gadget_dev_open, .read = ep0_read, diff --git a/drivers/usb/gadget/legacy/raw_gadget.c b/drivers/usb/gadget/legacy/raw_gadget.c index 399fca32a8ac..20165e1582d9 100644 --- a/drivers/usb/gadget/legacy/raw_gadget.c +++ b/drivers/usb/gadget/legacy/raw_gadget.c @@ -782,7 +782,7 @@ static int raw_ioctl_ep0_read(struct raw_dev *dev, unsigned long value) if (ret < 0) goto free; - length = min(io.length, (unsigned int)ret); + length = min_t(unsigned int, io.length, ret); if (copy_to_user((void __user *)(value + sizeof(io)), data, length)) ret = -EFAULT; else @@ -1168,7 +1168,7 @@ static int raw_ioctl_ep_read(struct raw_dev *dev, unsigned long value) if (ret < 0) goto free; - length = min(io.length, (unsigned int)ret); + length = min_t(unsigned int, io.length, ret); if (copy_to_user((void __user *)(value + sizeof(io)), data, length)) ret = -EFAULT; else @@ -1364,7 +1364,6 @@ static const struct file_operations raw_fops = { .unlocked_ioctl = raw_ioctl, .compat_ioctl = raw_ioctl, .release = raw_release, - .llseek = no_llseek, }; static struct miscdevice raw_misc_device = { diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c index 40870227999a..fc1e06246d9d 100644 --- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c @@ -19,7 +19,7 @@ #include <scsi/scsi_tcq.h> #include <target/target_core_base.h> #include <target/target_core_fabric.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "u_tcm.h" diff --git a/drivers/usb/gadget/legacy/zero.c b/drivers/usb/gadget/legacy/zero.c index 23312a07efb4..a05785bdeb30 100644 --- a/drivers/usb/gadget/legacy/zero.c +++ b/drivers/usb/gadget/legacy/zero.c @@ -194,7 +194,7 @@ static void zero_suspend(struct usb_composite_dev *cdev) static void zero_resume(struct usb_composite_dev *cdev) { DBG(cdev, "%s\n", __func__); - del_timer(&autoresume_timer); + timer_delete(&autoresume_timer); } /*-------------------------------------------------------------------------*/ @@ -398,7 +398,7 @@ err_put_func_inst_ss: static int zero_unbind(struct usb_composite_dev *cdev) { - del_timer_sync(&autoresume_timer); + timer_delete_sync(&autoresume_timer); if (!IS_ERR_OR_NULL(func_ss)) usb_put_function(func_ss); usb_put_function_instance(func_inst_ss); @@ -425,4 +425,5 @@ static struct usb_composite_driver zero_driver = { module_usb_composite_driver(zero_driver); MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("Gadget Zero, for USB development"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/u_f.c b/drivers/usb/gadget/u_f.c index 6aea1ecb3999..115d219c9c00 100644 --- a/drivers/usb/gadget/u_f.c +++ b/drivers/usb/gadget/u_f.c @@ -8,8 +8,8 @@ * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> */ -#include "u_f.h" #include <linux/usb/ch9.h> +#include <linux/usb/func_utils.h> struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len) { diff --git a/drivers/usb/gadget/u_f.h b/drivers/usb/gadget/u_f.h deleted file mode 100644 index e313c3b8dcb1..000000000000 --- a/drivers/usb/gadget/u_f.h +++ /dev/null @@ -1,86 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * u_f.h - * - * Utility definitions for USB functions - * - * Copyright (c) 2013 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> - */ - -#ifndef __U_F_H__ -#define __U_F_H__ - -#include <linux/usb/gadget.h> -#include <linux/overflow.h> - -/* Variable Length Array Macros **********************************************/ -#define vla_group(groupname) size_t groupname##__next = 0 -#define vla_group_size(groupname) groupname##__next - -#define vla_item(groupname, type, name, n) \ - size_t groupname##_##name##__offset = ({ \ - size_t offset = 0; \ - if (groupname##__next != SIZE_MAX) { \ - size_t align_mask = __alignof__(type) - 1; \ - size_t size = array_size(n, sizeof(type)); \ - offset = (groupname##__next + align_mask) & \ - ~align_mask; \ - if (check_add_overflow(offset, size, \ - &groupname##__next)) { \ - groupname##__next = SIZE_MAX; \ - offset = 0; \ - } \ - } \ - offset; \ - }) - -#define vla_item_with_sz(groupname, type, name, n) \ - size_t groupname##_##name##__sz = array_size(n, sizeof(type)); \ - size_t groupname##_##name##__offset = ({ \ - size_t offset = 0; \ - if (groupname##__next != SIZE_MAX) { \ - size_t align_mask = __alignof__(type) - 1; \ - offset = (groupname##__next + align_mask) & \ - ~align_mask; \ - if (check_add_overflow(offset, groupname##_##name##__sz,\ - &groupname##__next)) { \ - groupname##__next = SIZE_MAX; \ - offset = 0; \ - } \ - } \ - offset; \ - }) - -#define vla_ptr(ptr, groupname, name) \ - ((void *) ((char *)ptr + groupname##_##name##__offset)) - -struct usb_ep; -struct usb_request; - -/** - * alloc_ep_req - returns a usb_request allocated by the gadget driver and - * allocates the request's buffer. - * - * @ep: the endpoint to allocate a usb_request - * @len: usb_requests's buffer suggested size - * - * In case @ep direction is OUT, the @len will be aligned to ep's - * wMaxPacketSize. In order to avoid memory leaks or drops, *always* use - * usb_requests's length (req->length) to refer to the allocated buffer size. - * Requests allocated via alloc_ep_req() *must* be freed by free_ep_req(). - */ -struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len); - -/* Frees a usb_request previously allocated by alloc_ep_req() */ -static inline void free_ep_req(struct usb_ep *ep, struct usb_request *req) -{ - WARN_ON(req->buf == NULL); - kfree(req->buf); - req->buf = NULL; - usb_ep_free_request(ep, req); -} - -#endif /* __U_F_H__ */ diff --git a/drivers/usb/gadget/u_os_desc.h b/drivers/usb/gadget/u_os_desc.h index 5d7d35c8cc31..f8b9f0faa9b1 100644 --- a/drivers/usb/gadget/u_os_desc.h +++ b/drivers/usb/gadget/u_os_desc.h @@ -13,7 +13,7 @@ #ifndef __U_OS_DESC_H__ #define __U_OS_DESC_H__ -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/nls.h> #define USB_EXT_PROP_DW_SIZE 0 diff --git a/drivers/usb/gadget/udc/aspeed-vhub/core.c b/drivers/usb/gadget/udc/aspeed-vhub/core.c index f60a019bb173..f2685f89b3e5 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/core.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/core.c @@ -428,7 +428,7 @@ MODULE_DEVICE_TABLE(of, ast_vhub_dt_ids); static struct platform_driver ast_vhub_driver = { .probe = ast_vhub_probe, - .remove_new = ast_vhub_remove, + .remove = ast_vhub_remove, .driver = { .name = KBUILD_MODNAME, .of_match_table = ast_vhub_dt_ids, diff --git a/drivers/usb/gadget/udc/aspeed-vhub/dev.c b/drivers/usb/gadget/udc/aspeed-vhub/dev.c index 573109ca5b79..a09f72772e6e 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/dev.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/dev.c @@ -548,6 +548,9 @@ int ast_vhub_init_dev(struct ast_vhub *vhub, unsigned int idx) d->vhub = vhub; d->index = idx; d->name = devm_kasprintf(parent, GFP_KERNEL, "port%d", idx+1); + if (!d->name) + return -ENOMEM; + d->regs = vhub->regs + 0x100 + 0x10 * idx; ast_vhub_init_ep0(vhub, &d->ep0, d); diff --git a/drivers/usb/gadget/udc/aspeed-vhub/hub.c b/drivers/usb/gadget/udc/aspeed-vhub/hub.c index a63e4af60a56..02fe1a08d575 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/hub.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/hub.c @@ -22,6 +22,7 @@ #include <linux/usb/gadget.h> #include <linux/of.h> #include <linux/regmap.h> +#include <linux/string_choices.h> #include <linux/dma-mapping.h> #include <linux/bcd.h> #include <linux/version.h> @@ -219,7 +220,7 @@ static int ast_vhub_hub_dev_feature(struct ast_vhub_ep *ep, if (wValue == USB_DEVICE_REMOTE_WAKEUP) { ep->vhub->wakeup_en = is_set; EPDBG(ep, "Hub remote wakeup %s\n", - is_set ? "enabled" : "disabled"); + str_enabled_disabled(is_set)); return std_req_complete; } diff --git a/drivers/usb/gadget/udc/aspeed_udc.c b/drivers/usb/gadget/udc/aspeed_udc.c index 3916c8e2ba01..353bfb1ff0a1 100644 --- a/drivers/usb/gadget/udc/aspeed_udc.c +++ b/drivers/usb/gadget/udc/aspeed_udc.c @@ -66,8 +66,8 @@ #define USB_UPSTREAM_EN BIT(0) /* Main config reg */ -#define UDC_CFG_SET_ADDR(x) ((x) & 0x3f) -#define UDC_CFG_ADDR_MASK (0x3f) +#define UDC_CFG_SET_ADDR(x) ((x) & UDC_CFG_ADDR_MASK) +#define UDC_CFG_ADDR_MASK GENMASK(6, 0) /* Interrupt ctrl & status reg */ #define UDC_IRQ_EP_POOL_NAK BIT(17) @@ -156,7 +156,7 @@ #define AST_EP_DMA_DESC_PID_DATA1 (2 << 14) #define AST_EP_DMA_DESC_PID_MDATA (3 << 14) #define EP_DESC1_IN_LEN(x) ((x) & 0x1fff) -#define AST_EP_DMA_DESC_MAX_LEN (7680) /* Max packet length for trasmit in 1 desc */ +#define AST_EP_DMA_DESC_MAX_LEN (7680) /* Max packet length for transmit in 1 desc */ struct ast_udc_request { struct usb_request req; @@ -1009,6 +1009,8 @@ static void ast_udc_getstatus(struct ast_udc_dev *udc) break; case USB_RECIP_ENDPOINT: epnum = crq.wIndex & USB_ENDPOINT_NUMBER_MASK; + if (epnum >= AST_UDC_NUM_ENDPOINTS) + goto stall; status = udc->ep[epnum].stopped; break; default: @@ -1588,7 +1590,7 @@ MODULE_DEVICE_TABLE(of, ast_udc_of_dt_ids); static struct platform_driver ast_udc_driver = { .probe = ast_udc_probe, - .remove_new = ast_udc_remove, + .remove = ast_udc_remove, .driver = { .name = KBUILD_MODNAME, .of_match_table = ast_udc_of_dt_ids, diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c index e3bf17a98b38..aa4c61094dc6 100644 --- a/drivers/usb/gadget/udc/at91_udc.c +++ b/drivers/usb/gadget/udc/at91_udc.c @@ -16,6 +16,7 @@ #include <linux/delay.h> #include <linux/ioport.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/errno.h> #include <linux/list.h> #include <linux/interrupt.h> @@ -131,7 +132,7 @@ static void proc_ep_show(struct seq_file *s, struct at91_ep *ep) seq_printf(s, "csr %08x rxbytes=%d %s %s %s" EIGHTBITS "\n", csr, (csr & 0x07ff0000) >> 16, - (csr & (1 << 15)) ? "enabled" : "disabled", + str_enabled_disabled(csr & (1 << 15)), (csr & (1 << 11)) ? "DATA1" : "DATA0", types[(csr & 0x700) >> 8], @@ -2002,7 +2003,7 @@ static int at91udc_resume(struct platform_device *pdev) static struct platform_driver at91_udc_driver = { .probe = at91udc_probe, - .remove_new = at91udc_remove, + .remove = at91udc_remove, .shutdown = at91udc_shutdown, .suspend = at91udc_suspend, .resume = at91udc_resume, diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index b76885d78e8a..0c6f2ad81d37 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -187,7 +187,6 @@ static int regs_dbg_release(struct inode *inode, struct file *file) static const struct file_operations queue_dbg_fops = { .owner = THIS_MODULE, .open = queue_dbg_open, - .llseek = no_llseek, .read = queue_dbg_read, .release = queue_dbg_release, }; @@ -2445,7 +2444,7 @@ static SIMPLE_DEV_PM_OPS(usba_udc_pm_ops, usba_udc_suspend, usba_udc_resume); static struct platform_driver udc_driver = { .probe = usba_udc_probe, - .remove_new = usba_udc_remove, + .remove = usba_udc_remove, .driver = { .name = "atmel_usba_udc", .pm = &usba_udc_pm_ops, diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c index da7011d906e0..502612a5650e 100644 --- a/drivers/usb/gadget/udc/bcm63xx_udc.c +++ b/drivers/usb/gadget/udc/bcm63xx_udc.c @@ -2367,7 +2367,7 @@ static void bcm63xx_udc_remove(struct platform_device *pdev) static struct platform_driver bcm63xx_udc_driver = { .probe = bcm63xx_udc_probe, - .remove_new = bcm63xx_udc_remove, + .remove = bcm63xx_udc_remove, .driver = { .name = DRV_MODULE_NAME, }, diff --git a/drivers/usb/gadget/udc/bdc/bdc.h b/drivers/usb/gadget/udc/bdc/bdc.h index 8d00b1239f21..2f4abf6f8f77 100644 --- a/drivers/usb/gadget/udc/bdc/bdc.h +++ b/drivers/usb/gadget/udc/bdc/bdc.h @@ -20,7 +20,7 @@ #include <linux/debugfs.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define BRCM_BDC_NAME "bdc" #define BRCM_BDC_DESC "Broadcom USB Device Controller driver" diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c index 35a652807fca..5c3d8b64c0e7 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_core.c +++ b/drivers/usb/gadget/udc/bdc/bdc_core.c @@ -639,6 +639,7 @@ static const struct of_device_id bdc_of_match[] = { { .compatible = "brcm,bdc" }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, bdc_of_match); static struct platform_driver bdc_driver = { .driver = { @@ -647,7 +648,7 @@ static struct platform_driver bdc_driver = { .of_match_table = bdc_of_match, }, .probe = bdc_probe, - .remove_new = bdc_remove, + .remove = bdc_remove, }; module_platform_driver(bdc_driver); diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c index fa88f210ecd5..f995cfa9b99e 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_ep.c +++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c @@ -30,7 +30,7 @@ #include <linux/pm.h> #include <linux/io.h> #include <linux/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/platform_device.h> #include <linux/usb/composite.h> diff --git a/drivers/usb/gadget/udc/bdc/bdc_udc.c b/drivers/usb/gadget/udc/bdc/bdc_udc.c index 53ffaf4e2e37..23826fd7a8e6 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_udc.c +++ b/drivers/usb/gadget/udc/bdc/bdc_udc.c @@ -29,7 +29,7 @@ #include <linux/pm.h> #include <linux/io.h> #include <linux/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/platform_device.h> #include "bdc.h" diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c b/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c index fa12a5d46f2e..a5a9d395fd0d 100644 --- a/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c +++ b/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c @@ -8,7 +8,7 @@ */ #include <linux/usb/composite.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "cdns2-gadget.h" #include "cdns2-trace.h" diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c b/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c index 0eed0e03842c..7e69944ef18a 100644 --- a/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c +++ b/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c @@ -29,6 +29,7 @@ #include <linux/pm_runtime.h> #include <linux/interrupt.h> #include <linux/property.h> +#include <linux/string_choices.h> #include <linux/dmapool.h> #include <linux/iopoll.h> @@ -2033,8 +2034,8 @@ static void cdns2_quiesce(struct cdns2_device *pdev) set_reg_bit_8(&pdev->usb_regs->usbcs, USBCS_DISCON); /* Disable interrupt. */ - writeb(0, &pdev->interrupt_regs->extien), - writeb(0, &pdev->interrupt_regs->usbien), + writeb(0, &pdev->interrupt_regs->extien); + writeb(0, &pdev->interrupt_regs->usbien); writew(0, &pdev->adma_regs->ep_ien); /* Clear interrupt line. */ @@ -2233,12 +2234,12 @@ static int cdns2_init_eps(struct cdns2_device *pdev) dev_dbg(pdev->dev, "Init %s, SupType: CTRL: %s, INT: %s, " "BULK: %s, ISOC %s, SupDir IN: %s, OUT: %s\n", pep->name, - (pep->endpoint.caps.type_control) ? "yes" : "no", - (pep->endpoint.caps.type_int) ? "yes" : "no", - (pep->endpoint.caps.type_bulk) ? "yes" : "no", - (pep->endpoint.caps.type_iso) ? "yes" : "no", - (pep->endpoint.caps.dir_in) ? "yes" : "no", - (pep->endpoint.caps.dir_out) ? "yes" : "no"); + str_yes_no(pep->endpoint.caps.type_control), + str_yes_no(pep->endpoint.caps.type_int), + str_yes_no(pep->endpoint.caps.type_bulk), + str_yes_no(pep->endpoint.caps.type_iso), + str_yes_no(pep->endpoint.caps.dir_in), + str_yes_no(pep->endpoint.caps.dir_out)); INIT_LIST_HEAD(&pep->pending_list); INIT_LIST_HEAD(&pep->deferred_list); @@ -2251,7 +2252,6 @@ static int cdns2_gadget_start(struct cdns2_device *pdev) { u32 max_speed; void *buf; - int val; int ret; pdev->usb_regs = pdev->regs; @@ -2261,14 +2261,9 @@ static int cdns2_gadget_start(struct cdns2_device *pdev) pdev->adma_regs = pdev->regs + CDNS2_ADMA_REGS_OFFSET; /* Reset controller. */ - set_reg_bit_8(&pdev->usb_regs->cpuctrl, CPUCTRL_SW_RST); - - ret = readl_poll_timeout_atomic(&pdev->usb_regs->cpuctrl, val, - !(val & CPUCTRL_SW_RST), 1, 10000); - if (ret) { - dev_err(pdev->dev, "Error: reset controller timeout\n"); - return -EINVAL; - } + writeb(CPUCTRL_SW_RST | CPUCTRL_UPCLK | CPUCTRL_WUEN, + &pdev->usb_regs->cpuctrl); + usleep_range(5, 10); usb_initialize_gadget(pdev->dev, &pdev->gadget, NULL); diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-gadget.h b/drivers/usb/gadget/udc/cdns2/cdns2-gadget.h index 71e2f62d653a..b5d5ec12e986 100644 --- a/drivers/usb/gadget/udc/cdns2/cdns2-gadget.h +++ b/drivers/usb/gadget/udc/cdns2/cdns2-gadget.h @@ -292,8 +292,17 @@ struct cdns2_usb_regs { #define SPEEDCTRL_HSDISABLE BIT(7) /* CPUCTRL- bitmasks. */ +/* UP clock enable */ +#define CPUCTRL_UPCLK BIT(0) /* Controller reset bit. */ #define CPUCTRL_SW_RST BIT(1) +/** + * If the wuen bit is ‘1’, the upclken is automatically set to ‘1’ after + * detecting rising edge of wuintereq interrupt. If the wuen bit is ‘0’, + * the wuintereq interrupt is ignored. + */ +#define CPUCTRL_WUEN BIT(7) + /** * struct cdns2_adma_regs - ADMA controller registers. diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-pci.c b/drivers/usb/gadget/udc/cdns2/cdns2-pci.c index 1691541c9413..e589593b4cbf 100644 --- a/drivers/usb/gadget/udc/cdns2/cdns2-pci.c +++ b/drivers/usb/gadget/udc/cdns2/cdns2-pci.c @@ -15,8 +15,6 @@ #include "cdns2-gadget.h" #define PCI_DRIVER_NAME "cdns-pci-usbhs" -#define CDNS_VENDOR_ID 0x17cd -#define CDNS_DEVICE_ID 0x0120 #define PCI_BAR_DEV 0 #define PCI_DEV_FN_DEVICE 0 @@ -114,14 +112,14 @@ static const struct dev_pm_ops cdns2_pci_pm_ops = { }; static const struct pci_device_id cdns2_pci_ids[] = { - { PCI_VENDOR_ID_CDNS, CDNS_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_SERIAL_USB_DEVICE, PCI_ANY_ID }, + { PCI_DEVICE(PCI_VENDOR_ID_CDNS, PCI_DEVICE_ID_CDNS_USB), + .class = PCI_CLASS_SERIAL_USB_DEVICE }, { 0, } }; static struct pci_driver cdns2_pci_driver = { .name = "cdns2-pci", - .id_table = &cdns2_pci_ids[0], + .id_table = cdns2_pci_ids, .probe = cdns2_pci_probe, .remove = cdns2_pci_remove, .driver = { diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-trace.h b/drivers/usb/gadget/udc/cdns2/cdns2-trace.h index 61f241634ea5..ade1752956b1 100644 --- a/drivers/usb/gadget/udc/cdns2/cdns2-trace.h +++ b/drivers/usb/gadget/udc/cdns2/cdns2-trace.h @@ -64,7 +64,7 @@ DECLARE_EVENT_CLASS(cdns2_log_simple, __string(text, msg) ), TP_fast_assign( - __assign_str(text, msg); + __assign_str(text); ), TP_printk("%s", __get_str(text)) ); @@ -103,7 +103,7 @@ TRACE_EVENT(cdns2_ep_halt, __field(u8, flush) ), TP_fast_assign( - __assign_str(name, ep_priv->name); + __assign_str(name); __entry->halt = halt; __entry->flush = flush; ), @@ -119,8 +119,8 @@ TRACE_EVENT(cdns2_wa1, __string(msg, msg) ), TP_fast_assign( - __assign_str(ep_name, ep_priv->name); - __assign_str(msg, msg); + __assign_str(ep_name); + __assign_str(msg); ), TP_printk("WA1: %s %s", __get_str(ep_name), __get_str(msg)) ); @@ -134,7 +134,7 @@ DECLARE_EVENT_CLASS(cdns2_log_doorbell, __field(u32, ep_trbaddr) ), TP_fast_assign( - __assign_str(name, pep->name); + __assign_str(name); __entry->ep_trbaddr = ep_trbaddr; ), TP_printk("%s, ep_trbaddr %08x", __get_str(name), @@ -196,7 +196,7 @@ DECLARE_EVENT_CLASS(cdns2_log_epx_irq, __field(u32, ep_traddr) ), TP_fast_assign( - __assign_str(ep_name, pep->name); + __assign_str(ep_name); __entry->ep_sts = readl(&pdev->adma_regs->ep_sts); __entry->ep_ists = readl(&pdev->adma_regs->ep_ists); __entry->ep_traddr = readl(&pdev->adma_regs->ep_traddr); @@ -288,7 +288,7 @@ DECLARE_EVENT_CLASS(cdns2_log_request, __field(int, end_trb) ), TP_fast_assign( - __assign_str(name, preq->pep->name); + __assign_str(name); __entry->request = &preq->request; __entry->preq = preq; __entry->buf = preq->request.buf; @@ -380,7 +380,7 @@ DECLARE_EVENT_CLASS(cdns2_log_map_request, __field(dma_addr_t, dma) ), TP_fast_assign( - __assign_str(name, priv_req->pep->name); + __assign_str(name); __entry->req = &priv_req->request; __entry->buf = priv_req->request.buf; __entry->dma = priv_req->request.dma; @@ -411,7 +411,7 @@ DECLARE_EVENT_CLASS(cdns2_log_trb, __field(u32, type) ), TP_fast_assign( - __assign_str(name, pep->name); + __assign_str(name); __entry->trb = trb; __entry->buffer = le32_to_cpu(trb->buffer); __entry->length = le32_to_cpu(trb->length); @@ -476,7 +476,7 @@ DECLARE_EVENT_CLASS(cdns2_log_ep, __field(u8, dequeue) ), TP_fast_assign( - __assign_str(name, pep->name); + __assign_str(name); __entry->maxpacket = pep->endpoint.maxpacket; __entry->maxpacket_limit = pep->endpoint.maxpacket_limit; __entry->flags = pep->ep_state; @@ -568,7 +568,7 @@ DECLARE_EVENT_CLASS(cdns2_log_epx_reg_config, __field(u32, ep_cfg_reg) ), TP_fast_assign( - __assign_str(ep_name, pep->name); + __assign_str(ep_name); __entry->burst_size = pep->trb_burst_size; __entry->maxpack_reg = pep->dir ? readw(&pdev->epx_regs->txmaxpack[pep->num - 1]) : readw(&pdev->epx_regs->rxmaxpack[pep->num - 1]); diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index b3a9d18a8dcd..4b3d5075621a 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -118,12 +118,10 @@ int usb_ep_enable(struct usb_ep *ep) goto out; /* UDC drivers can't handle endpoints with maxpacket size 0 */ - if (usb_endpoint_maxp(ep->desc) == 0) { - /* - * We should log an error message here, but we can't call - * dev_err() because there's no way to find the gadget - * given only ep. - */ + if (!ep->desc || usb_endpoint_maxp(ep->desc) == 0) { + WARN_ONCE(1, "%s: ep%d (%s) has %s\n", __func__, ep->address, ep->name, + (!ep->desc) ? "NULL descriptor" : "maxpacket 0"); + ret = -EINVAL; goto out; } @@ -1426,8 +1424,16 @@ int usb_add_gadget(struct usb_gadget *gadget) if (ret) goto err_free_id; + ret = sysfs_create_link(&udc->dev.kobj, + &gadget->dev.kobj, "gadget"); + if (ret) + goto err_del_gadget; + return 0; + err_del_gadget: + device_del(&gadget->dev); + err_free_id: ida_free(&gadget_id_numbers, gadget->id_number); @@ -1536,8 +1542,9 @@ void usb_del_gadget(struct usb_gadget *gadget) mutex_unlock(&udc_lock); kobject_uevent(&udc->dev.kobj, KOBJ_REMOVE); - flush_work(&gadget->work); + sysfs_remove_link(&udc->dev.kobj, "gadget"); device_del(&gadget->dev); + flush_work(&gadget->work); ida_free(&gadget_id_numbers, gadget->id_number); cancel_work_sync(&udc->vbus_work); device_unregister(&udc->dev); @@ -1559,7 +1566,7 @@ EXPORT_SYMBOL_GPL(usb_del_gadget_udc); /* ------------------------------------------------------------------------- */ -static int gadget_match_driver(struct device *dev, struct device_driver *drv) +static int gadget_match_driver(struct device *dev, const struct device_driver *drv) { struct usb_gadget *gadget = dev_to_usb_gadget(dev); struct usb_udc *udc = gadget->udc; @@ -1689,6 +1696,7 @@ int usb_gadget_register_driver_owner(struct usb_gadget_driver *driver, driver->driver.bus = &gadget_bus_type; driver->driver.owner = owner; driver->driver.mod_name = mod_name; + driver->driver.probe_type = PROBE_FORCE_SYNCHRONOUS; ret = driver_register(&driver->driver); if (ret) { pr_warn("%s: driver registration failed: %d\n", diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index 0953e1b5c030..4f1b5db51dda 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -28,9 +28,10 @@ #include <linux/delay.h> #include <linux/ioport.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/errno.h> #include <linux/init.h> -#include <linux/timer.h> +#include <linux/hrtimer.h> #include <linux/list.h> #include <linux/interrupt.h> #include <linux/platform_device.h> @@ -42,7 +43,7 @@ #include <asm/byteorder.h> #include <linux/io.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define DRIVER_DESC "USB Host+Gadget Emulator" #define DRIVER_VERSION "02 May 2005" @@ -50,6 +51,8 @@ #define POWER_BUDGET 500 /* in mA; use 8 for low-power port testing */ #define POWER_BUDGET_3 900 /* in mA */ +#define DUMMY_TIMER_INT_NSECS 125000 /* 1 microframe */ + static const char driver_name[] = "dummy_hcd"; static const char driver_desc[] = "USB Host+Gadget Emulator"; @@ -78,7 +81,7 @@ module_param_named(num, mod_data.num, uint, S_IRUGO); MODULE_PARM_DESC(num, "number of emulated controllers"); /*-------------------------------------------------------------------------*/ -/* gadget side driver data structres */ +/* gadget side driver data structures */ struct dummy_ep { struct list_head queue; unsigned long last_io; /* jiffies timestamp */ @@ -240,7 +243,7 @@ enum dummy_rh_state { struct dummy_hcd { struct dummy *dum; enum dummy_rh_state rh_state; - struct timer_list timer; + struct hrtimer timer; u32 port_status; u32 old_status; unsigned long re_timeout; @@ -252,6 +255,7 @@ struct dummy_hcd { u32 stream_en_ep; u8 num_stream[30 / 2]; + unsigned timer_pending:1; unsigned active:1; unsigned old_active:1; unsigned resuming:1; @@ -622,7 +626,7 @@ static int dummy_enable(struct usb_ep *_ep, desc->bEndpointAddress & 0x0f, (desc->bEndpointAddress & USB_DIR_IN) ? "in" : "out", usb_ep_type_string(usb_endpoint_type(desc)), - max, ep->stream_en ? "enabled" : "disabled"); + max, str_enabled_disabled(ep->stream_en)); /* at this point real hardware should be NAKing transfers * to that endpoint, until a buffer is queued to it. @@ -1149,7 +1153,7 @@ static int dummy_udc_resume(struct platform_device *pdev) static struct platform_driver dummy_udc_driver = { .probe = dummy_udc_probe, - .remove_new = dummy_udc_remove, + .remove = dummy_udc_remove, .suspend = dummy_udc_suspend, .resume = dummy_udc_resume, .driver = { @@ -1301,8 +1305,11 @@ static int dummy_urb_enqueue( urb->error_count = 1; /* mark as a new urb */ /* kick the scheduler, it'll do the rest */ - if (!timer_pending(&dum_hcd->timer)) - mod_timer(&dum_hcd->timer, jiffies + 1); + if (!dum_hcd->timer_pending) { + dum_hcd->timer_pending = 1; + hrtimer_start(&dum_hcd->timer, ns_to_ktime(DUMMY_TIMER_INT_NSECS), + HRTIMER_MODE_REL_SOFT); + } done: spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); @@ -1321,9 +1328,10 @@ static int dummy_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) spin_lock_irqsave(&dum_hcd->dum->lock, flags); rc = usb_hcd_check_unlink_urb(hcd, urb, status); - if (!rc && dum_hcd->rh_state != DUMMY_RH_RUNNING && - !list_empty(&dum_hcd->urbp_list)) - mod_timer(&dum_hcd->timer, jiffies); + if (rc == 0 && !dum_hcd->timer_pending) { + dum_hcd->timer_pending = 1; + hrtimer_start(&dum_hcd->timer, ns_to_ktime(0), HRTIMER_MODE_REL_SOFT); + } spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return rc; @@ -1777,7 +1785,7 @@ static int handle_control_request(struct dummy_hcd *dum_hcd, struct urb *urb, * drivers except that the callbacks are invoked from soft interrupt * context. */ -static void dummy_timer(struct timer_list *t) +static enum hrtimer_restart dummy_timer(struct hrtimer *t) { struct dummy_hcd *dum_hcd = from_timer(dum_hcd, t, timer); struct dummy *dum = dum_hcd->dum; @@ -1808,16 +1816,15 @@ static void dummy_timer(struct timer_list *t) break; } - /* FIXME if HZ != 1000 this will probably misbehave ... */ - /* look at each urb queued by the host side driver */ spin_lock_irqsave(&dum->lock, flags); + dum_hcd->timer_pending = 0; if (!dum_hcd->udev) { dev_err(dummy_dev(dum_hcd), "timer fired with no URBs pending?\n"); spin_unlock_irqrestore(&dum->lock, flags); - return; + return HRTIMER_NORESTART; } dum_hcd->next_frame_urbp = NULL; @@ -1993,12 +2000,17 @@ return_urb: if (list_empty(&dum_hcd->urbp_list)) { usb_put_dev(dum_hcd->udev); dum_hcd->udev = NULL; - } else if (dum_hcd->rh_state == DUMMY_RH_RUNNING) { + } else if (!dum_hcd->timer_pending && + dum_hcd->rh_state == DUMMY_RH_RUNNING) { /* want a 1 msec delay here */ - mod_timer(&dum_hcd->timer, jiffies + msecs_to_jiffies(1)); + dum_hcd->timer_pending = 1; + hrtimer_start(&dum_hcd->timer, ns_to_ktime(DUMMY_TIMER_INT_NSECS), + HRTIMER_MODE_REL_SOFT); } spin_unlock_irqrestore(&dum->lock, flags); + + return HRTIMER_NORESTART; } /*-------------------------------------------------------------------------*/ @@ -2386,8 +2398,10 @@ static int dummy_bus_resume(struct usb_hcd *hcd) } else { dum_hcd->rh_state = DUMMY_RH_RUNNING; set_link_state(dum_hcd); - if (!list_empty(&dum_hcd->urbp_list)) - mod_timer(&dum_hcd->timer, jiffies); + if (!list_empty(&dum_hcd->urbp_list)) { + dum_hcd->timer_pending = 1; + hrtimer_start(&dum_hcd->timer, ns_to_ktime(0), HRTIMER_MODE_REL_SOFT); + } hcd->state = HC_STATE_RUNNING; } spin_unlock_irq(&dum_hcd->dum->lock); @@ -2465,7 +2479,7 @@ static DEVICE_ATTR_RO(urbs); static int dummy_start_ss(struct dummy_hcd *dum_hcd) { - timer_setup(&dum_hcd->timer, dummy_timer, 0); + hrtimer_setup(&dum_hcd->timer, dummy_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); dum_hcd->rh_state = DUMMY_RH_RUNNING; dum_hcd->stream_en_ep = 0; INIT_LIST_HEAD(&dum_hcd->urbp_list); @@ -2494,7 +2508,7 @@ static int dummy_start(struct usb_hcd *hcd) return dummy_start_ss(dum_hcd); spin_lock_init(&dum_hcd->dum->lock); - timer_setup(&dum_hcd->timer, dummy_timer, 0); + hrtimer_setup(&dum_hcd->timer, dummy_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); dum_hcd->rh_state = DUMMY_RH_RUNNING; INIT_LIST_HEAD(&dum_hcd->urbp_list); @@ -2513,8 +2527,12 @@ static int dummy_start(struct usb_hcd *hcd) static void dummy_stop(struct usb_hcd *hcd) { - device_remove_file(dummy_dev(hcd_to_dummy_hcd(hcd)), &dev_attr_urbs); - dev_info(dummy_dev(hcd_to_dummy_hcd(hcd)), "stopped\n"); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); + + hrtimer_cancel(&dum_hcd->timer); + dum_hcd->timer_pending = 0; + device_remove_file(dummy_dev(dum_hcd), &dev_attr_urbs); + dev_info(dummy_dev(dum_hcd), "stopped\n"); } /*-------------------------------------------------------------------------*/ @@ -2750,7 +2768,7 @@ static int dummy_hcd_resume(struct platform_device *pdev) static struct platform_driver dummy_hcd_driver = { .probe = dummy_hcd_probe, - .remove_new = dummy_hcd_remove, + .remove = dummy_hcd_remove, .suspend = dummy_hcd_suspend, .resume = dummy_hcd_resume, .driver = { diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c index 4e88681a79b6..aacfde06387c 100644 --- a/drivers/usb/gadget/udc/fsl_qe_udc.c +++ b/drivers/usb/gadget/udc/fsl_qe_udc.c @@ -511,7 +511,7 @@ static int qe_ep_register_init(struct qe_udc *udc, unsigned char pipe_num) out_8(&epparam->tbmr, rtfcr); tmp = (u16)(ep->ep.maxpacket + USB_CRC_SIZE); - /* MRBLR must be divisble by 4 */ + /* MRBLR must be divisible by 4 */ tmp = (u16)(((tmp >> 2) << 2) + 4); out_be16(&epparam->mrblr, tmp); @@ -1413,7 +1413,7 @@ static int ep_txframe_handle(struct qe_ep *ep) return 0; } -/* confirm the already trainsmited bd */ +/* confirm the already transmitted bd */ static int qe_ep_txconf(struct qe_ep *ep) { struct qe_bd __iomem *bd; @@ -2196,7 +2196,7 @@ static int tx_irq(struct qe_udc *udc) } -/* setup packect's rx is handle in the function too */ +/* setup packet's rx is handle in the function too */ static void rx_irq(struct qe_udc *udc) { struct qe_ep *ep; @@ -2704,7 +2704,7 @@ static struct platform_driver udc_driver = { .of_match_table = qe_udc_match, }, .probe = qe_udc_probe, - .remove_new = qe_udc_remove, + .remove = qe_udc_remove, #ifdef CONFIG_PM .suspend = qe_udc_suspend, .resume = qe_udc_resume, diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c index 3432ebfae978..4dea8bc30cf6 100644 --- a/drivers/usb/gadget/udc/fsl_udc_core.c +++ b/drivers/usb/gadget/udc/fsl_udc_core.c @@ -22,6 +22,7 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/init.h> #include <linux/list.h> #include <linux/interrupt.h> @@ -39,7 +40,7 @@ #include <asm/byteorder.h> #include <asm/io.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <asm/dma.h> #include "fsl_usb2_udc.h" @@ -1181,7 +1182,7 @@ static int fsl_vbus_session(struct usb_gadget *gadget, int is_active) udc = container_of(gadget, struct fsl_udc, gadget); spin_lock_irqsave(&udc->lock, flags); - dev_vdbg(&gadget->dev, "VBUS %s\n", is_active ? "on" : "off"); + dev_vdbg(&gadget->dev, "VBUS %s\n", str_on_off(is_active)); udc->vbus_active = (is_active != 0); if (can_pullup(udc)) fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP), @@ -2685,7 +2686,7 @@ MODULE_DEVICE_TABLE(of, fsl_udc_dt_ids); static struct platform_driver udc_driver = { .probe = fsl_udc_probe, - .remove_new = fsl_udc_remove, + .remove = fsl_udc_remove, .id_table = fsl_udc_devtype, /* these suspend and resume are not usb suspend and resume */ .suspend = fsl_udc_suspend, diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c index 873265634ccc..5e94a99b3e53 100644 --- a/drivers/usb/gadget/udc/fusb300_udc.c +++ b/drivers/usb/gadget/udc/fusb300_udc.c @@ -1297,7 +1297,7 @@ static void init_controller(struct fusb300 *fusb300) reg |= val; iowrite32(reg, fusb300->reg + FUSB300_OFFSET_HSCR); - /*set u1 u2 timmer*/ + /*set u1 u2 timer*/ fusb300_set_u2_timeout(fusb300, 0xff); fusb300_set_u1_timeout(fusb300, 0xff); @@ -1507,7 +1507,7 @@ clean_up: static struct platform_driver fusb300_driver = { .probe = fusb300_probe, - .remove_new = fusb300_remove, + .remove = fusb300_remove, .driver = { .name = udc_name, }, diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c index 5ffb3d5c635b..b860c2e76449 100644 --- a/drivers/usb/gadget/udc/goku_udc.c +++ b/drivers/usb/gadget/udc/goku_udc.c @@ -40,7 +40,7 @@ #include <asm/byteorder.h> #include <asm/io.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "goku_udc.h" diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c index fb901be5dac1..bf5b3c964c18 100644 --- a/drivers/usb/gadget/udc/gr_udc.c +++ b/drivers/usb/gadget/udc/gr_udc.c @@ -2249,7 +2249,7 @@ static struct platform_driver gr_driver = { .of_match_table = gr_match, }, .probe = gr_probe, - .remove_new = gr_remove, + .remove = gr_remove, }; module_platform_driver(gr_driver); diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c index d5f29f8fe481..89d6daf2bda7 100644 --- a/drivers/usb/gadget/udc/lpc32xx_udc.c +++ b/drivers/usb/gadget/udc/lpc32xx_udc.c @@ -1487,31 +1487,29 @@ static int udc_ep0_out_req(struct lpc32xx_udc *udc) req = list_entry(ep0->queue.next, struct lpc32xx_request, queue); - if (req) { - if (req->req.length == 0) { - /* Just dequeue request */ - done(ep0, req, 0); - udc->ep0state = WAIT_FOR_SETUP; - return 1; - } + if (req->req.length == 0) { + /* Just dequeue request */ + done(ep0, req, 0); + udc->ep0state = WAIT_FOR_SETUP; + return 1; + } - /* Get data from FIFO */ - bufferspace = req->req.length - req->req.actual; - if (bufferspace > ep0->ep.maxpacket) - bufferspace = ep0->ep.maxpacket; + /* Get data from FIFO */ + bufferspace = req->req.length - req->req.actual; + if (bufferspace > ep0->ep.maxpacket) + bufferspace = ep0->ep.maxpacket; - /* Copy data to buffer */ - prefetchw(req->req.buf + req->req.actual); - tr = udc_read_hwep(udc, EP_OUT, req->req.buf + req->req.actual, - bufferspace); - req->req.actual += bufferspace; + /* Copy data to buffer */ + prefetchw(req->req.buf + req->req.actual); + tr = udc_read_hwep(udc, EP_OUT, req->req.buf + req->req.actual, + bufferspace); + req->req.actual += bufferspace; - if (tr < ep0->ep.maxpacket) { - /* This is the last packet */ - done(ep0, req, 0); - udc->ep0state = WAIT_FOR_SETUP; - return 1; - } + if (tr < ep0->ep.maxpacket) { + /* This is the last packet */ + done(ep0, req, 0); + udc->ep0state = WAIT_FOR_SETUP; + return 1; } return 0; @@ -1962,18 +1960,17 @@ static void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) /* If there isn't a request waiting, something went wrong */ req = list_entry(ep->queue.next, struct lpc32xx_request, queue); - if (req) { - done(ep, req, 0); - /* Start another request if ready */ - if (!list_empty(&ep->queue)) { - if (ep->is_in) - udc_ep_in_req_dma(udc, ep); - else - udc_ep_out_req_dma(udc, ep); - } else - ep->req_pending = 0; - } + done(ep, req, 0); + + /* Start another request if ready */ + if (!list_empty(&ep->queue)) { + if (ep->is_in) + udc_ep_in_req_dma(udc, ep); + else + udc_ep_out_req_dma(udc, ep); + } else + ep->req_pending = 0; } @@ -1989,10 +1986,6 @@ static void udc_handle_dma_ep(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) #endif req = list_entry(ep->queue.next, struct lpc32xx_request, queue); - if (!req) { - ep_err(ep, "DMA interrupt on no req!\n"); - return; - } dd = req->dd_desc_ptr; /* DMA descriptor should always be retired for this call */ @@ -3256,7 +3249,7 @@ MODULE_DEVICE_TABLE(of, lpc32xx_udc_of_match); static struct platform_driver lpc32xx_udc_driver = { .probe = lpc32xx_udc_probe, - .remove_new = lpc32xx_udc_remove, + .remove = lpc32xx_udc_remove, .shutdown = lpc32xx_udc_shutdown, .suspend = lpc32xx_udc_suspend, .resume = lpc32xx_udc_resume, diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c index bfaa5291e6c8..a938b2af0944 100644 --- a/drivers/usb/gadget/udc/m66592-udc.c +++ b/drivers/usb/gadget/udc/m66592-udc.c @@ -1688,7 +1688,7 @@ clean_up: /*-------------------------------------------------------------------------*/ static struct platform_driver m66592_driver = { .probe = m66592_probe, - .remove_new = m66592_remove, + .remove = m66592_remove, .driver = { .name = udc_name, }, diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c index 2a421f0ff931..062f43e146aa 100644 --- a/drivers/usb/gadget/udc/mv_u3d_core.c +++ b/drivers/usb/gadget/udc/mv_u3d_core.c @@ -1307,7 +1307,7 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d) /* initialize ep0, ep0 in/out use eps[1] */ ep = &u3d->eps[1]; ep->u3d = u3d; - strncpy(ep->name, "ep0", sizeof(ep->name)); + strscpy(ep->name, "ep0"); ep->ep.name = ep->name; ep->ep.ops = &mv_u3d_ep_ops; ep->wedge = 0; @@ -1337,7 +1337,7 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d) ep->ep.caps.dir_out = true; } ep->u3d = u3d; - strncpy(ep->name, name, sizeof(ep->name)); + strscpy(ep->name, name); ep->ep.name = ep->name; ep->ep.caps.type_iso = true; @@ -2047,7 +2047,7 @@ static void mv_u3d_shutdown(struct platform_device *dev) static struct platform_driver mv_u3d_driver = { .probe = mv_u3d_probe, - .remove_new = mv_u3d_remove, + .remove = mv_u3d_remove, .shutdown = mv_u3d_shutdown, .driver = { .name = "mv-u3d", diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index 78308b64955d..ff103e6b3048 100644 --- a/drivers/usb/gadget/udc/mv_udc_core.c +++ b/drivers/usb/gadget/udc/mv_udc_core.c @@ -30,7 +30,7 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/platform_data/mv_usb.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "mv_udc.h" @@ -2409,7 +2409,7 @@ static void mv_udc_shutdown(struct platform_device *pdev) static struct platform_driver udc_driver = { .probe = mv_udc_probe, - .remove_new = mv_udc_remove, + .remove = mv_udc_remove, .shutdown = mv_udc_shutdown, .driver = { .name = "mv-udc", diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c index 19bbc38f3d35..7ecddbf5c90d 100644 --- a/drivers/usb/gadget/udc/net2272.c +++ b/drivers/usb/gadget/udc/net2272.c @@ -28,7 +28,7 @@ #include <linux/usb/gadget.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "net2272.h" @@ -2097,7 +2097,7 @@ static irqreturn_t net2272_irq(int irq, void *_dev) } /* check dma interrupts */ #endif - /* Platform/devcice interrupt handler */ + /* Platform/device interrupt handler */ #if !defined(PLX_PCI_RDK) net2272_handle_stat1_irqs(dev, net2272_read(dev, IRQSTAT1)); net2272_handle_stat0_irqs(dev, net2272_read(dev, IRQSTAT0)); @@ -2685,7 +2685,7 @@ net2272_plat_remove(struct platform_device *pdev) static struct platform_driver net2272_plat_driver = { .probe = net2272_plat_probe, - .remove_new = net2272_plat_remove, + .remove = net2272_plat_remove, .driver = { .name = driver_name, }, diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c index 1b929c519cd7..b2903e4bbf54 100644 --- a/drivers/usb/gadget/udc/net2280.c +++ b/drivers/usb/gadget/udc/net2280.c @@ -56,7 +56,7 @@ #include <asm/byteorder.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define DRIVER_DESC "PLX NET228x/USB338x USB Peripheral Controller" #define DRIVER_VERSION "2005 Sept 27/v3.0" diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c index f90eeecf27de..c93ea210c17c 100644 --- a/drivers/usb/gadget/udc/omap_udc.c +++ b/drivers/usb/gadget/udc/omap_udc.c @@ -18,6 +18,7 @@ #include <linux/errno.h> #include <linux/delay.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> @@ -36,7 +37,7 @@ #include <asm/byteorder.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <asm/mach-types.h> #include <linux/omap-dma.h> @@ -56,7 +57,6 @@ /* ISO too */ #define USE_ISO -#define DRIVER_DESC "OMAP UDC driver" #define DRIVER_VERSION "4 October 2004" #define OMAP_DMA_USB_W2FC_TX0 29 @@ -110,7 +110,6 @@ MODULE_PARM_DESC(use_dma, "enable/disable DMA"); static const char driver_name[] = "omap_udc"; -static const char driver_desc[] = DRIVER_DESC; /*-------------------------------------------------------------------------*/ @@ -253,7 +252,7 @@ static int omap_ep_disable(struct usb_ep *_ep) ep->has_dma = 0; omap_writew(UDC_SET_HALT, UDC_CTRL); list_del_init(&ep->iso); - del_timer(&ep->timer); + timer_delete(&ep->timer); spin_unlock_irqrestore(&ep->udc->lock, flags); @@ -578,13 +577,13 @@ static void finish_in_dma(struct omap_ep *ep, struct omap_req *req, int status) static void next_out_dma(struct omap_ep *ep, struct omap_req *req) { - unsigned packets = req->req.length - req->req.actual; + unsigned int packets = req->req.length - req->req.actual; int dma_trigger = 0; u16 w; /* set up this DMA transfer, enable the fifo, start */ packets /= ep->ep.maxpacket; - packets = min(packets, (unsigned)UDC_RXN_TC + 1); + packets = min_t(unsigned int, packets, UDC_RXN_TC + 1); req->dma_bytes = packets * ep->ep.maxpacket; omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S16, ep->ep.maxpacket >> 1, packets, @@ -1254,7 +1253,7 @@ static int omap_vbus_session(struct usb_gadget *gadget, int is_active) udc = container_of(gadget, struct omap_udc, gadget); spin_lock_irqsave(&udc->lock, flags); - VDBG("VBUS %s\n", is_active ? "on" : "off"); + VDBG("VBUS %s\n", str_on_off(is_active)); udc->vbus_active = (is_active != 0); if (cpu_is_omap15xx()) { /* "software" detect, ignored if !VBUS_MODE_1510 */ @@ -2299,13 +2298,11 @@ static int proc_udc_show(struct seq_file *s, void *_) spin_lock_irqsave(&udc->lock, flags); - seq_printf(s, "%s, version: " DRIVER_VERSION + seq_printf(s, "OMAP UDC driver, version: " DRIVER_VERSION #ifdef USE_ISO " (iso)" #endif - "%s\n", - driver_desc, - use_dma ? " (dma)" : ""); + "%s\n", use_dma ? " (dma)" : ""); tmp = omap_readw(UDC_REV) & 0xff; seq_printf(s, @@ -2984,7 +2981,7 @@ static int omap_udc_resume(struct platform_device *dev) static struct platform_driver udc_driver = { .probe = omap_udc_probe, - .remove_new = omap_udc_remove, + .remove = omap_udc_remove, .suspend = omap_udc_suspend, .resume = omap_udc_resume, .driver = { @@ -2994,6 +2991,6 @@ static struct platform_driver udc_driver = { module_platform_driver(udc_driver); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_DESCRIPTION("OMAP UDC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:omap_udc"); diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c index 1ac26cb49ecf..24eb1ae78e45 100644 --- a/drivers/usb/gadget/udc/pxa25x_udc.c +++ b/drivers/usb/gadget/udc/pxa25x_udc.c @@ -38,7 +38,7 @@ #include <asm/byteorder.h> #include <asm/dma.h> #include <asm/mach-types.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -1503,7 +1503,7 @@ reset_gadget(struct pxa25x_udc *dev, struct usb_gadget_driver *driver) ep->stopped = 1; nuke(ep, -ESHUTDOWN); } - del_timer_sync(&dev->timer); + timer_delete_sync(&dev->timer); /* report reset; the driver is already quiesced */ if (driver) @@ -1530,7 +1530,7 @@ stop_activity(struct pxa25x_udc *dev, struct usb_gadget_driver *driver) ep->stopped = 1; nuke(ep, -ESHUTDOWN); } - del_timer_sync(&dev->timer); + timer_delete_sync(&dev->timer); /* report disconnect; the driver is already quiesced */ if (driver) @@ -1607,14 +1607,14 @@ static void handle_ep0 (struct pxa25x_udc *dev) if (udccs0 & UDCCS0_SST) { nuke(ep, -EPIPE); udc_ep0_set_UDCCS(dev, UDCCS0_SST); - del_timer(&dev->timer); + timer_delete(&dev->timer); ep0_idle(dev); } /* previous request unfinished? non-error iff back-to-back ... */ if ((udccs0 & UDCCS0_SA) != 0 && dev->ep0state != EP0_IDLE) { nuke(ep, 0); - del_timer(&dev->timer); + timer_delete(&dev->timer); ep0_idle(dev); } @@ -2474,7 +2474,7 @@ static int pxa25x_udc_resume(struct platform_device *dev) static struct platform_driver udc_driver = { .shutdown = pxa25x_udc_shutdown, .probe = pxa25x_udc_probe, - .remove_new = pxa25x_udc_remove, + .remove = pxa25x_udc_remove, .suspend = pxa25x_udc_suspend, .resume = pxa25x_udc_resume, .driver = { diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c index 1a6317e4b2a3..897f53601b5b 100644 --- a/drivers/usb/gadget/udc/pxa27x_udc.c +++ b/drivers/usb/gadget/udc/pxa27x_udc.c @@ -20,6 +20,7 @@ #include <linux/gpio.h> #include <linux/gpio/consumer.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/prefetch.h> #include <linux/byteorder/generic.h> #include <linux/platform_data/pxa2xx_udc.h> @@ -1083,7 +1084,7 @@ static int pxa_ep_queue(struct usb_ep *_ep, struct usb_request *_req, is_first_req = list_empty(&ep->queue); ep_dbg(ep, "queue req %p(first=%s), len %d buf %p\n", - _req, is_first_req ? "yes" : "no", + _req, str_yes_no(is_first_req), _req->length, _req->buf); if (!ep->enabled) { @@ -2355,18 +2356,19 @@ static int pxa_udc_probe(struct platform_device *pdev) struct pxa_udc *udc = &memory; int retval = 0, gpio; struct pxa2xx_udc_mach_info *mach = dev_get_platdata(&pdev->dev); - unsigned long gpio_flags; if (mach) { - gpio_flags = mach->gpio_pullup_inverted ? GPIOF_ACTIVE_LOW : 0; gpio = mach->gpio_pullup; if (gpio_is_valid(gpio)) { retval = devm_gpio_request_one(&pdev->dev, gpio, - gpio_flags, + GPIOF_OUT_INIT_LOW, "USB D+ pullup"); if (retval) return retval; udc->gpiod = gpio_to_desc(mach->gpio_pullup); + + if (mach->gpio_pullup_inverted ^ gpiod_is_active_low(udc->gpiod)) + gpiod_toggle_active_low(udc->gpiod); } udc->udc_command = mach->udc_command; } else { @@ -2538,7 +2540,7 @@ static struct platform_driver udc_driver = { .of_match_table = of_match_ptr(udc_pxa_dt_ids), }, .probe = pxa_udc_probe, - .remove_new = pxa_udc_remove, + .remove = pxa_udc_remove, .shutdown = pxa_udc_shutdown, #ifdef CONFIG_PM .suspend = pxa_udc_suspend, diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c index db4a10a979f9..6c1d15b2250c 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -1810,7 +1810,7 @@ static void r8a66597_remove(struct platform_device *pdev) struct r8a66597 *r8a66597 = platform_get_drvdata(pdev); usb_del_gadget_udc(&r8a66597->gadget); - del_timer_sync(&r8a66597->timer); + timer_delete_sync(&r8a66597->timer); r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req); if (r8a66597->pdata->on_chip) { @@ -1965,7 +1965,7 @@ clean_up2: /*-------------------------------------------------------------------------*/ static struct platform_driver r8a66597_driver = { .probe = r8a66597_probe, - .remove_new = r8a66597_remove, + .remove = r8a66597_remove, .driver = { .name = udc_name, }, diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 3b01734ce1b7..89b304cf6d03 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -310,7 +310,7 @@ struct renesas_usb3_request { struct list_head queue; }; -#define USB3_EP_NAME_SIZE 8 +#define USB3_EP_NAME_SIZE 16 struct renesas_usb3_ep { struct usb_ep ep; struct renesas_usb3 *usb3; @@ -3013,7 +3013,7 @@ static SIMPLE_DEV_PM_OPS(renesas_usb3_pm_ops, renesas_usb3_suspend, static struct platform_driver renesas_usb3_driver = { .probe = renesas_usb3_probe, - .remove_new = renesas_usb3_remove, + .remove = renesas_usb3_remove, .driver = { .name = udc_name, .pm = &renesas_usb3_pm_ops, diff --git a/drivers/usb/gadget/udc/renesas_usbf.c b/drivers/usb/gadget/udc/renesas_usbf.c index 657f265ac7cc..14f4b2cf05a4 100644 --- a/drivers/usb/gadget/udc/renesas_usbf.c +++ b/drivers/usb/gadget/udc/renesas_usbf.c @@ -2482,7 +2482,7 @@ static int usbf_handle_ep0_setup(struct usbf_ep *ep0) ep0->delayed_status = 0; if ((crq.ctrlreq.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD) { - /* This is not a USB standard request -> delelate */ + /* This is not a USB standard request -> delegate */ goto delegate; } @@ -3381,7 +3381,7 @@ static struct platform_driver udc_driver = { .of_match_table = usbf_match, }, .probe = usbf_probe, - .remove_new = usbf_remove, + .remove = usbf_remove, }; module_platform_driver(udc_driver); diff --git a/drivers/usb/gadget/udc/rzv2m_usb3drd.c b/drivers/usb/gadget/udc/rzv2m_usb3drd.c index 36f4ff00d22f..4692eae89f44 100644 --- a/drivers/usb/gadget/udc/rzv2m_usb3drd.c +++ b/drivers/usb/gadget/udc/rzv2m_usb3drd.c @@ -127,7 +127,7 @@ static struct platform_driver rzv2m_usb3drd_driver = { .of_match_table = rzv2m_usb3drd_of_match, }, .probe = rzv2m_usb3drd_probe, - .remove_new = rzv2m_usb3drd_remove, + .remove = rzv2m_usb3drd_remove, }; module_platform_driver(rzv2m_usb3drd_driver); diff --git a/drivers/usb/gadget/udc/snps_udc_core.c b/drivers/usb/gadget/udc/snps_udc_core.c index 2fc5d4d277bc..373942ceb076 100644 --- a/drivers/usb/gadget/udc/snps_udc_core.c +++ b/drivers/usb/gadget/udc/snps_udc_core.c @@ -33,7 +33,7 @@ #include <linux/prefetch.h> #include <linux/moduleparam.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "amd5536udc.h" static void udc_setup_endpoints(struct udc *dev); @@ -2707,7 +2707,7 @@ static irqreturn_t udc_control_in_isr(struct udc *dev) /* write fifo */ udc_txfifo_write(ep, &req->req); - /* lengh bytes transferred */ + /* length bytes transferred */ len = req->req.length - req->req.actual; if (len > ep->ep.maxpacket) len = ep->ep.maxpacket; @@ -3035,12 +3035,12 @@ void udc_remove(struct udc *dev) stop_timer++; if (timer_pending(&udc_timer)) wait_for_completion(&on_exit); - del_timer_sync(&udc_timer); + timer_delete_sync(&udc_timer); /* remove pollstall timer */ stop_pollstall_timer++; if (timer_pending(&udc_pollstall_timer)) wait_for_completion(&on_pollstall_exit); - del_timer_sync(&udc_pollstall_timer); + timer_delete_sync(&udc_pollstall_timer); udc = NULL; } EXPORT_SYMBOL_GPL(udc_remove); diff --git a/drivers/usb/gadget/udc/snps_udc_plat.c b/drivers/usb/gadget/udc/snps_udc_plat.c index ba5a06690507..db842a6de643 100644 --- a/drivers/usb/gadget/udc/snps_udc_plat.c +++ b/drivers/usb/gadget/udc/snps_udc_plat.c @@ -309,7 +309,7 @@ MODULE_DEVICE_TABLE(of, of_udc_match); static struct platform_driver udc_plat_driver = { .probe = udc_plat_probe, - .remove_new = udc_plat_remove, + .remove = udc_plat_remove, .driver = { .name = "snps-udc-plat", .of_match_table = of_udc_match, diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c index 7aa46d426f31..2957316fd3d0 100644 --- a/drivers/usb/gadget/udc/tegra-xudc.c +++ b/drivers/usb/gadget/udc/tegra-xudc.c @@ -1749,6 +1749,10 @@ static int __tegra_xudc_ep_disable(struct tegra_xudc_ep *ep) val = xudc_readl(xudc, CTRL); val &= ~CTRL_RUN; xudc_writel(xudc, val, CTRL); + + val = xudc_readl(xudc, ST); + if (val & ST_RC) + xudc_writel(xudc, ST_RC, ST); } dev_info(xudc->dev, "ep %u disabled\n", ep->index); @@ -4071,7 +4075,7 @@ static const struct dev_pm_ops tegra_xudc_pm_ops = { static struct platform_driver tegra_xudc_driver = { .probe = tegra_xudc_probe, - .remove_new = tegra_xudc_remove, + .remove = tegra_xudc_remove, .driver = { .name = "tegra-xudc", .pm = &tegra_xudc_pm_ops, diff --git a/drivers/usb/gadget/udc/trace.h b/drivers/usb/gadget/udc/trace.h index a5ed26fbc2da..4e334298b0e8 100644 --- a/drivers/usb/gadget/udc/trace.h +++ b/drivers/usb/gadget/udc/trace.h @@ -157,7 +157,7 @@ DECLARE_EVENT_CLASS(udc_log_ep, __field(int, ret) ), TP_fast_assign( - __assign_str(name, ep->name); + __assign_str(name); __entry->maxpacket = ep->maxpacket; __entry->maxpacket_limit = ep->maxpacket_limit; __entry->max_streams = ep->max_streams; @@ -233,7 +233,7 @@ DECLARE_EVENT_CLASS(udc_log_req, __field(struct usb_request *, req) ), TP_fast_assign( - __assign_str(name, ep->name); + __assign_str(name); __entry->length = req->length; __entry->actual = req->actual; __entry->num_sgs = req->num_sgs; diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c index 74590f93ea61..ae2aeb271897 100644 --- a/drivers/usb/gadget/udc/udc-xilinx.c +++ b/drivers/usb/gadget/udc/udc-xilinx.c @@ -947,7 +947,7 @@ static int xudc_ep_disable(struct usb_ep *_ep) ep->desc = NULL; ep->ep_usb.desc = NULL; - dev_dbg(udc->dev, "USB Ep %d disable\n ", ep->epnumber); + dev_dbg(udc->dev, "USB Ep %d disable\n", ep->epnumber); /* Disable the endpoint.*/ epcfg = udc->read_fn(udc->addr + ep->offset); epcfg &= ~XUSB_EP_CFG_VALID_MASK; @@ -2258,7 +2258,7 @@ static struct platform_driver xudc_driver = { .pm = &xudc_pm_ops, }, .probe = xudc_probe, - .remove_new = xudc_remove, + .remove = xudc_remove, }; module_platform_driver(xudc_driver); diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c index 75f6f99f8173..37a2f1b61cba 100644 --- a/drivers/usb/gadget/usbstring.c +++ b/drivers/usb/gadget/usbstring.c @@ -55,7 +55,7 @@ usb_gadget_get_string (const struct usb_gadget_strings *table, int id, u8 *buf) return -EINVAL; /* string descriptors have length, tag, then UTF16-LE text */ - len = min((size_t)USB_MAX_STRING_LEN, strlen(s->s)); + len = min_t(size_t, USB_MAX_STRING_LEN, strlen(s->s)); len = utf8s_to_utf16s(s->s, len, UTF16_LITTLE_ENDIAN, (wchar_t *) &buf[2], USB_MAX_STRING_LEN); if (len < 0) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 4448d0ab06f0..d011d6c753ed 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -40,11 +40,11 @@ config USB_XHCI_DBGCAP config USB_XHCI_PCI tristate depends on USB_PCI - depends on USB_XHCI_PCI_RENESAS || !USB_XHCI_PCI_RENESAS default y config USB_XHCI_PCI_RENESAS tristate "Support for additional Renesas xHCI controller with firmware" + depends on USB_XHCI_PCI help Say 'Y' to enable the support for the Renesas xHCI controller with firmware. Make sure you have the firmware for the device and diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c index 7558cc4d90cc..519386255886 100644 --- a/drivers/usb/host/bcma-hcd.c +++ b/drivers/usb/host/bcma-hcd.c @@ -25,7 +25,6 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/of_platform.h> #include <linux/usb/ehci_pdriver.h> #include <linux/usb/ohci_pdriver.h> diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 6a6e1c510b28..65747270fd88 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -220,7 +220,7 @@ static SIMPLE_DEV_PM_OPS(ehci_atmel_pm_ops, ehci_atmel_drv_suspend, static struct platform_driver ehci_atmel_driver = { .probe = ehci_atmel_drv_probe, - .remove_new = ehci_atmel_drv_remove, + .remove = ehci_atmel_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "atmel-ehci", diff --git a/drivers/usb/host/ehci-brcm.c b/drivers/usb/host/ehci-brcm.c index 77e42c739c58..888e8f6670d2 100644 --- a/drivers/usb/host/ehci-brcm.c +++ b/drivers/usb/host/ehci-brcm.c @@ -246,10 +246,11 @@ static const struct of_device_id brcm_ehci_of_match[] = { { .compatible = "brcm,bcm7445-ehci", }, {} }; +MODULE_DEVICE_TABLE(of, brcm_ehci_of_match); static struct platform_driver ehci_brcm_driver = { .probe = ehci_brcm_probe, - .remove_new = ehci_brcm_remove, + .remove = ehci_brcm_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ehci-brcm", diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index c063fb042926..435001128221 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -430,13 +430,13 @@ static void qh_lines(struct ehci_hcd *ehci, struct ehci_qh *qh, mark = '/'; } switch ((scratch >> 8) & 0x03) { - case 0: + case PID_CODE_OUT: type = "out"; break; - case 1: + case PID_CODE_IN: type = "in"; break; - case 2: + case PID_CODE_SETUP: type = "setup"; break; default: @@ -602,10 +602,10 @@ static unsigned output_buf_tds_dir(char *buf, struct ehci_hcd *ehci, list_for_each_entry(qtd, &qh->qtd_list, qtd_list) { temp++; switch ((hc32_to_cpu(ehci, qtd->hw_token) >> 8) & 0x03) { - case 0: + case PID_CODE_OUT: type = "out"; continue; - case 1: + case PID_CODE_IN: type = "in"; continue; } diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c index f644b131cc0b..d2a5bedf736a 100644 --- a/drivers/usb/host/ehci-exynos.c +++ b/drivers/usb/host/ehci-exynos.c @@ -48,7 +48,6 @@ struct exynos_ehci_hcd { static int exynos_ehci_get_phy(struct device *dev, struct exynos_ehci_hcd *exynos_ehci) { - struct device_node *child; struct phy *phy; int phy_number, num_phys; int ret; @@ -66,26 +65,22 @@ static int exynos_ehci_get_phy(struct device *dev, return 0; /* Get PHYs using legacy bindings */ - for_each_available_child_of_node(dev->of_node, child) { + for_each_available_child_of_node_scoped(dev->of_node, child) { ret = of_property_read_u32(child, "reg", &phy_number); if (ret) { dev_err(dev, "Failed to parse device tree\n"); - of_node_put(child); return ret; } if (phy_number >= PHY_NUMBER) { dev_err(dev, "Invalid number of PHYs\n"); - of_node_put(child); return -EINVAL; } phy = devm_of_phy_optional_get(dev, child, NULL); exynos_ehci->phy[phy_number] = phy; - if (IS_ERR(phy)) { - of_node_put(child); + if (IS_ERR(phy)) return PTR_ERR(phy); - } } exynos_ehci->legacy_phy = true; @@ -159,20 +154,16 @@ static int exynos_ehci_probe(struct platform_device *pdev) err = exynos_ehci_get_phy(&pdev->dev, exynos_ehci); if (err) - goto fail_clk; + goto fail_io; - exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost"); + exynos_ehci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost"); if (IS_ERR(exynos_ehci->clk)) { dev_err(&pdev->dev, "Failed to get usbhost clock\n"); err = PTR_ERR(exynos_ehci->clk); - goto fail_clk; + goto fail_io; } - err = clk_prepare_enable(exynos_ehci->clk); - if (err) - goto fail_clk; - hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(hcd->regs)) { err = PTR_ERR(hcd->regs); @@ -223,8 +214,6 @@ fail_add_hcd: exynos_ehci_phy_disable(&pdev->dev); pdev->dev.of_node = exynos_ehci->of_node; fail_io: - clk_disable_unprepare(exynos_ehci->clk); -fail_clk: usb_put_hcd(hcd); return err; } @@ -240,12 +229,9 @@ static void exynos_ehci_remove(struct platform_device *pdev) exynos_ehci_phy_disable(&pdev->dev); - clk_disable_unprepare(exynos_ehci->clk); - usb_put_hcd(hcd); } -#ifdef CONFIG_PM static int exynos_ehci_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); @@ -288,15 +274,9 @@ static int exynos_ehci_resume(struct device *dev) ehci_resume(hcd, false); return 0; } -#else -#define exynos_ehci_suspend NULL -#define exynos_ehci_resume NULL -#endif -static const struct dev_pm_ops exynos_ehci_pm_ops = { - .suspend = exynos_ehci_suspend, - .resume = exynos_ehci_resume, -}; +static DEFINE_SIMPLE_DEV_PM_OPS(exynos_ehci_pm_ops, + exynos_ehci_suspend, exynos_ehci_resume); #ifdef CONFIG_OF static const struct of_device_id exynos_ehci_match[] = { @@ -308,11 +288,11 @@ MODULE_DEVICE_TABLE(of, exynos_ehci_match); static struct platform_driver exynos_ehci_driver = { .probe = exynos_ehci_probe, - .remove_new = exynos_ehci_remove, + .remove = exynos_ehci_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "exynos-ehci", - .pm = &exynos_ehci_pm_ops, + .pm = pm_ptr(&exynos_ehci_pm_ops), .of_match_table = of_match_ptr(exynos_ehci_match), } }; diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 5b1ce394a417..26f13278d4d6 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -706,7 +706,7 @@ static void fsl_ehci_drv_remove(struct platform_device *pdev) static struct platform_driver ehci_fsl_driver = { .probe = fsl_ehci_drv_probe, - .remove_new = fsl_ehci_drv_remove, + .remove = fsl_ehci_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = DRV_NAME, diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index 14150e4d3382..bd9762eaa135 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -168,7 +168,7 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_grlib_of_match); static struct platform_driver ehci_grlib_driver = { .probe = ehci_hcd_grlib_probe, - .remove_new = ehci_hcd_grlib_remove, + .remove = ehci_hcd_grlib_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "grlib-ehci", diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 802bfafb1012..6d1d190c914d 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -32,7 +32,7 @@ #include <asm/byteorder.h> #include <asm/io.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #if defined(CONFIG_PPC_PS3) #include <asm/firmware.h> @@ -466,8 +466,7 @@ static int ehci_init(struct usb_hcd *hcd) */ ehci->need_io_watchdog = 1; - hrtimer_init(&ehci->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - ehci->hrtimer.function = ehci_hrtimer_func; + hrtimer_setup(&ehci->hrtimer, ehci_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); ehci->next_hrtimer_event = EHCI_HRTIMER_NO_EVENT; hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); @@ -547,7 +546,7 @@ static int ehci_init(struct usb_hcd *hcd) * make problems: throughput reduction (!), data errors... */ if (park) { - park = min(park, (unsigned) 3); + park = min_t(unsigned int, park, 3); temp |= CMD_PARK; temp |= park << 8; } diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 2f1fc7eb8b72..cbabbe107172 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -279,7 +279,7 @@ static const struct of_device_id ehci_mv_dt_ids[] = { static struct platform_driver ehci_mv_driver = { .probe = mv_ehci_probe, - .remove_new = mv_ehci_remove, + .remove = mv_ehci_remove, .shutdown = mv_ehci_shutdown, .driver = { .name = "mv-ehci", diff --git a/drivers/usb/host/ehci-npcm7xx.c b/drivers/usb/host/ehci-npcm7xx.c index 3d3317a1a0b3..f1c7034c1e80 100644 --- a/drivers/usb/host/ehci-npcm7xx.c +++ b/drivers/usb/host/ehci-npcm7xx.c @@ -122,7 +122,7 @@ MODULE_DEVICE_TABLE(of, npcm7xx_ehci_id_table); static struct platform_driver npcm7xx_ehci_hcd_driver = { .probe = npcm7xx_ehci_hcd_drv_probe, - .remove_new = npcm7xx_ehci_hcd_drv_remove, + .remove = npcm7xx_ehci_hcd_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "npcm7xx-ehci", diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index b24f371a46f3..db4a1acb27da 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -264,7 +264,7 @@ MODULE_DEVICE_TABLE(of, omap_ehci_dt_ids); static struct platform_driver ehci_hcd_omap_driver = { .probe = ehci_hcd_omap_probe, - .remove_new = ehci_hcd_omap_remove, + .remove = ehci_hcd_omap_remove, .shutdown = usb_hcd_platform_shutdown, /*.suspend = ehci_hcd_omap_suspend, */ /*.resume = ehci_hcd_omap_resume, */ diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index ad145a54ca74..34abff8669f8 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -352,7 +352,7 @@ MODULE_DEVICE_TABLE(of, ehci_orion_dt_ids); static struct platform_driver ehci_orion_driver = { .probe = ehci_orion_drv_probe, - .remove_new = ehci_orion_drv_remove, + .remove = ehci_orion_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "orion-ehci", diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 98b073185e1c..150d2542cef0 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -224,7 +224,7 @@ static void quirk_poll_init(struct ehci_platform_priv *priv) static void quirk_poll_end(struct ehci_platform_priv *priv) { - del_timer_sync(&priv->poll_timer); + timer_delete_sync(&priv->poll_timer); cancel_delayed_work(&priv->poll_work); } @@ -508,7 +508,7 @@ static SIMPLE_DEV_PM_OPS(ehci_platform_pm_ops, ehci_platform_suspend, static struct platform_driver ehci_platform_driver = { .id_table = ehci_platform_table, .probe = ehci_platform_probe, - .remove_new = ehci_platform_remove, + .remove = ehci_platform_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ehci-platform", diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 7fd83e806ae4..8063b9d3aebd 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -230,7 +230,7 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_ppc_of_match); static struct platform_driver ehci_hcd_ppc_of_driver = { .probe = ehci_hcd_ppc_of_probe, - .remove_new = ehci_hcd_ppc_of_remove, + .remove = ehci_hcd_ppc_of_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ppc-of-ehci", diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 666f5c4db25a..ba37a9fcab92 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -27,10 +27,6 @@ /*-------------------------------------------------------------------------*/ -/* PID Codes that are used here, from EHCI specification, Table 3-16. */ -#define PID_CODE_IN 1 -#define PID_CODE_SETUP 2 - /* fill a qtd, returning how much of the buffer we were able to queue up */ static unsigned int @@ -230,7 +226,7 @@ static int qtd_copy_status ( /* fs/ls interrupt xfer missed the complete-split */ status = -EPROTO; } else if (token & QTD_STS_DBE) { - status = (QTD_PID (token) == 1) /* IN ? */ + status = (QTD_PID(token) == PID_CODE_IN) /* IN ? */ ? -ENOSR /* hc couldn't read data */ : -ECOMM; /* hc couldn't write data */ } else if (token & QTD_STS_XACT) { @@ -606,7 +602,7 @@ qh_urb_transaction ( /* SETUP pid */ qtd_fill(ehci, qtd, urb->setup_dma, sizeof (struct usb_ctrlrequest), - token | (2 /* "setup" */ << 8), 8); + token | (PID_CODE_SETUP << 8), 8); /* ... and always at least one more pid */ token ^= QTD_TOGGLE; @@ -620,7 +616,7 @@ qh_urb_transaction ( /* for zero length DATA stages, STATUS is always IN */ if (len == 0) - token |= (1 /* "in" */ << 8); + token |= (PID_CODE_IN << 8); } /* @@ -642,7 +638,7 @@ qh_urb_transaction ( } if (is_input) - token |= (1 /* "in" */ << 8); + token |= (PID_CODE_IN << 8); /* else it's already initted to "out" pid (0 << 8) */ maxpacket = usb_endpoint_maxp(&urb->ep->desc); @@ -709,7 +705,7 @@ qh_urb_transaction ( if (usb_pipecontrol (urb->pipe)) { one_more = 1; - token ^= 0x0100; /* "in" <--> "out" */ + token ^= (PID_CODE_IN << 8); /* "in" <--> "out" */ token |= QTD_TOGGLE; /* force DATA1 */ } else if (usb_pipeout(urb->pipe) && (urb->transfer_flags & URB_ZERO_PACKET) @@ -1203,7 +1199,7 @@ static int ehci_submit_single_step_set_feature( /* SETUP pid, and interrupt after SETUP completion */ qtd_fill(ehci, qtd, urb->setup_dma, sizeof(struct usb_ctrlrequest), - QTD_IOC | token | (2 /* "setup" */ << 8), 8); + QTD_IOC | token | (PID_CODE_SETUP << 8), 8); submit_async(ehci, urb, &qtd_list, GFP_ATOMIC); return 0; /*Return now; we shall come back after 15 seconds*/ @@ -1216,7 +1212,7 @@ static int ehci_submit_single_step_set_feature( token ^= QTD_TOGGLE; /*We need to start IN with DATA-1 Pid-sequence*/ buf = urb->transfer_dma; - token |= (1 /* "in" */ << 8); /*This is IN stage*/ + token |= (PID_CODE_IN << 8); /*This is IN stage*/ maxpacket = usb_endpoint_maxp(&urb->ep->desc); @@ -1229,7 +1225,7 @@ static int ehci_submit_single_step_set_feature( qtd->hw_alt_next = EHCI_LIST_END(ehci); /* STATUS stage for GetDesc control request */ - token ^= 0x0100; /* "in" <--> "out" */ + token ^= (PID_CODE_IN << 8); /* "in" <--> "out" */ token |= QTD_TOGGLE; /* force DATA1 */ qtd_prev = qtd; diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index d31d9506e41a..2d23690d72c5 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -119,8 +119,12 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) if (IS_ERR(priv->iclk)) priv->iclk = NULL; - clk_enable(priv->fclk); - clk_enable(priv->iclk); + ret = clk_enable(priv->fclk); + if (ret) + goto fail_request_resource; + ret = clk_enable(priv->iclk); + if (ret) + goto fail_iclk; ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret != 0) { @@ -136,6 +140,7 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) fail_add_hcd: clk_disable(priv->iclk); +fail_iclk: clk_disable(priv->fclk); fail_request_resource: @@ -169,7 +174,7 @@ static void ehci_hcd_sh_shutdown(struct platform_device *pdev) static struct platform_driver ehci_hcd_sh_driver = { .probe = ehci_hcd_sh_probe, - .remove_new = ehci_hcd_sh_remove, + .remove = ehci_hcd_sh_remove, .shutdown = ehci_hcd_sh_shutdown, .driver = { .name = "sh_ehci", diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c index d0e94e4c9fe2..e96710192d6b 100644 --- a/drivers/usb/host/ehci-spear.c +++ b/drivers/usb/host/ehci-spear.c @@ -105,7 +105,9 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev) /* registers start at offset 0x0 */ hcd_to_ehci(hcd)->caps = hcd->regs; - clk_prepare_enable(sehci->clk); + retval = clk_prepare_enable(sehci->clk); + if (retval) + goto err_put_hcd; retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval) goto err_stop_ehci; @@ -130,8 +132,7 @@ static void spear_ehci_hcd_drv_remove(struct platform_device *pdev) usb_remove_hcd(hcd); - if (sehci->clk) - clk_disable_unprepare(sehci->clk); + clk_disable_unprepare(sehci->clk); usb_put_hcd(hcd); } @@ -143,7 +144,7 @@ MODULE_DEVICE_TABLE(of, spear_ehci_id_table); static struct platform_driver spear_ehci_hcd_driver = { .probe = spear_ehci_hcd_drv_probe, - .remove_new = spear_ehci_hcd_drv_remove, + .remove = spear_ehci_hcd_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "spear-ehci", diff --git a/drivers/usb/host/ehci-st.c b/drivers/usb/host/ehci-st.c index 2dbb0d86daaa..58867d816af7 100644 --- a/drivers/usb/host/ehci-st.c +++ b/drivers/usb/host/ehci-st.c @@ -320,7 +320,7 @@ MODULE_DEVICE_TABLE(of, st_ehci_ids); static struct platform_driver ehci_platform_driver = { .probe = st_ehci_platform_probe, - .remove_new = st_ehci_platform_remove, + .remove = st_ehci_platform_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "st-ehci", diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index a2112c28f631..1d16cfefabd7 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -220,7 +220,7 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_xilinx_of_match); static struct platform_driver ehci_hcd_xilinx_of_driver = { .probe = ehci_hcd_xilinx_of_probe, - .remove_new = ehci_hcd_xilinx_of_remove, + .remove = ehci_hcd_xilinx_of_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "xilinx-of-ehci", diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 1441e3400796..d7a3c8d13f6b 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -321,10 +321,16 @@ struct ehci_qtd { size_t length; /* length of buffer */ } __aligned(32); +/* PID Codes that are used here, from EHCI specification, Table 3-16. */ +#define PID_CODE_OUT 0 +#define PID_CODE_IN 1 +#define PID_CODE_SETUP 2 + /* mask NakCnt+T in qh->hw_alt_next */ #define QTD_MASK(ehci) cpu_to_hc32(ehci, ~0x1f) -#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && QTD_PID(token) == 1) +#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && \ + QTD_PID(token) == PID_CODE_IN) /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c index 9a1b5224f239..22a0942f0bce 100644 --- a/drivers/usb/host/fhci-hcd.c +++ b/drivers/usb/host/fhci-hcd.c @@ -791,7 +791,7 @@ static struct platform_driver of_fhci_driver = { .of_match_table = of_fhci_match, }, .probe = of_fhci_probe, - .remove_new = of_fhci_remove, + .remove = of_fhci_remove, }; module_platform_driver(of_fhci_driver); diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c index a45ede80edfc..c3acd410ce94 100644 --- a/drivers/usb/host/fhci-sched.c +++ b/drivers/usb/host/fhci-sched.c @@ -158,7 +158,7 @@ static int add_packet(struct fhci_usb *usb, struct ed *ed, struct td *td) struct packet *pkt; u8 *data = NULL; - /* calcalate data address,len and toggle and then add the transaction */ + /* calculate data address,len and toggle and then add the transaction */ if (td->toggle == USB_TD_TOGGLE_CARRY) td->toggle = ed->toggle_carry; @@ -679,7 +679,7 @@ static void process_done_list(unsigned long data) DECLARE_TASKLET_OLD(fhci_tasklet, process_done_list); -/* transfer complted callback */ +/* transfer completed callback */ u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci) { if (!fhci->process_done_task->state) diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 6cdc3d805c32..4e67b9471986 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -362,7 +362,7 @@ static struct platform_driver fsl_usb2_mph_dr_driver = { .of_match_table = fsl_usb2_mph_dr_of_match, }, .probe = fsl_usb2_mph_dr_of_probe, - .remove_new = fsl_usb2_mph_dr_of_remove, + .remove = fsl_usb2_mph_dr_of_remove, }; module_platform_driver(fsl_usb2_mph_dr_driver); diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index a82d8926e922..71c22c4bd163 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1684,7 +1684,7 @@ MODULE_ALIAS("platform:isp116x-hcd"); static struct platform_driver isp116x_driver = { .probe = isp116x_probe, - .remove_new = isp116x_remove, + .remove = isp116x_remove, .suspend = isp116x_suspend, .resume = isp116x_resume, .driver = { diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index a52c3d858f3e..954fc5ad565b 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -83,7 +83,7 @@ #include <asm/irq.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> static int dbg_level; #ifdef ISP1362_DEBUG @@ -2357,7 +2357,7 @@ static void isp1362_hc_stop(struct usb_hcd *hcd) pr_debug("%s:\n", __func__); - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); spin_lock_irqsave(&isp1362_hcd->lock, flags); @@ -2757,7 +2757,7 @@ static int isp1362_resume(struct platform_device *pdev) static struct platform_driver isp1362_driver = { .probe = isp1362_probe, - .remove_new = isp1362_remove, + .remove = isp1362_remove, .suspend = isp1362_suspend, .resume = isp1362_resume, diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c index 9fe4f48b1898..dcf31a592f5d 100644 --- a/drivers/usb/host/max3421-hcd.c +++ b/drivers/usb/host/max3421-hcd.c @@ -779,11 +779,17 @@ max3421_check_unlink(struct usb_hcd *hcd) retval = 1; dev_dbg(&spi->dev, "%s: URB %p unlinked=%d", __func__, urb, urb->unlinked); - usb_hcd_unlink_urb_from_ep(hcd, urb); - spin_unlock_irqrestore(&max3421_hcd->lock, - flags); - usb_hcd_giveback_urb(hcd, urb, 0); - spin_lock_irqsave(&max3421_hcd->lock, flags); + if (urb == max3421_hcd->curr_urb) { + max3421_hcd->urb_done = 1; + max3421_hcd->hien &= ~(BIT(MAX3421_HI_HXFRDN_BIT) | + BIT(MAX3421_HI_RCVDAV_BIT)); + } else { + usb_hcd_unlink_urb_from_ep(hcd, urb); + spin_unlock_irqrestore(&max3421_hcd->lock, + flags); + usb_hcd_giveback_urb(hcd, urb, 0); + spin_lock_irqsave(&max3421_hcd->lock, flags); + } } } } @@ -1940,6 +1946,12 @@ max3421_remove(struct spi_device *spi) usb_put_hcd(hcd); } +static const struct spi_device_id max3421_spi_ids[] = { + { "max3421" }, + { }, +}; +MODULE_DEVICE_TABLE(spi, max3421_spi_ids); + static const struct of_device_id max3421_of_match_table[] = { { .compatible = "maxim,max3421", }, {}, @@ -1949,6 +1961,7 @@ MODULE_DEVICE_TABLE(of, max3421_of_match_table); static struct spi_driver max3421_driver = { .probe = max3421_probe, .remove = max3421_remove, + .id_table = max3421_spi_ids, .driver = { .name = "max3421-hcd", .of_match_table = max3421_of_match_table, diff --git a/drivers/usb/host/octeon-hcd.c b/drivers/usb/host/octeon-hcd.c index 19d5777f5db2..361d33b0c4d2 100644 --- a/drivers/usb/host/octeon-hcd.c +++ b/drivers/usb/host/octeon-hcd.c @@ -3346,7 +3346,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case USB_PORT_FEAT_INDICATOR: dev_dbg(dev, " INDICATOR\n"); - /* Port inidicator not supported */ + /* Port indicator not supported */ break; case USB_PORT_FEAT_C_CONNECTION: dev_dbg(dev, " C_CONNECTION\n"); @@ -3711,8 +3711,8 @@ static struct platform_driver octeon_usb_driver = { .name = "octeon-hcd", .of_match_table = octeon_usb_match, }, - .probe = octeon_usb_probe, - .remove_new = octeon_usb_remove, + .probe = octeon_usb_probe, + .remove = octeon_usb_remove, }; static int __init octeon_usb_driver_init(void) diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index f691cd98a574..5df793dcb25d 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -685,7 +685,7 @@ static SIMPLE_DEV_PM_OPS(ohci_hcd_at91_pm_ops, ohci_hcd_at91_drv_suspend, static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, - .remove_new = ohci_hcd_at91_drv_remove, + .remove = ohci_hcd_at91_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "at91_ohci", diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index d9adae53466b..3c5ca2d7c92e 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -22,7 +22,7 @@ #include <linux/regulator/consumer.h> #include <linux/usb.h> #include <linux/usb/hcd.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "ohci.h" @@ -531,7 +531,7 @@ static const struct ohci_driver_overrides da8xx_overrides __initconst = { */ static struct platform_driver ohci_hcd_da8xx_driver = { .probe = ohci_da8xx_probe, - .remove_new = ohci_da8xx_remove, + .remove = ohci_da8xx_remove, .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_da8xx_suspend, diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 20e26a474591..cc5cb0900988 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -37,7 +37,6 @@ struct exynos_ohci_hcd { static int exynos_ohci_get_phy(struct device *dev, struct exynos_ohci_hcd *exynos_ohci) { - struct device_node *child; struct phy *phy; int phy_number, num_phys; int ret; @@ -55,26 +54,22 @@ static int exynos_ohci_get_phy(struct device *dev, return 0; /* Get PHYs using legacy bindings */ - for_each_available_child_of_node(dev->of_node, child) { + for_each_available_child_of_node_scoped(dev->of_node, child) { ret = of_property_read_u32(child, "reg", &phy_number); if (ret) { dev_err(dev, "Failed to parse device tree\n"); - of_node_put(child); return ret; } if (phy_number >= PHY_NUMBER) { dev_err(dev, "Invalid number of PHYs\n"); - of_node_put(child); return -EINVAL; } phy = devm_of_phy_optional_get(dev, child, NULL); exynos_ohci->phy[phy_number] = phy; - if (IS_ERR(phy)) { - of_node_put(child); + if (IS_ERR(phy)) return PTR_ERR(phy); - } } exynos_ohci->legacy_phy = true; @@ -135,20 +130,16 @@ static int exynos_ohci_probe(struct platform_device *pdev) err = exynos_ohci_get_phy(&pdev->dev, exynos_ohci); if (err) - goto fail_clk; + goto fail_io; - exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost"); + exynos_ohci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost"); if (IS_ERR(exynos_ohci->clk)) { dev_err(&pdev->dev, "Failed to get usbhost clock\n"); err = PTR_ERR(exynos_ohci->clk); - goto fail_clk; + goto fail_io; } - err = clk_prepare_enable(exynos_ohci->clk); - if (err) - goto fail_clk; - hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(hcd->regs)) { err = PTR_ERR(hcd->regs); @@ -191,8 +182,6 @@ fail_add_hcd: exynos_ohci_phy_disable(&pdev->dev); pdev->dev.of_node = exynos_ohci->of_node; fail_io: - clk_disable_unprepare(exynos_ohci->clk); -fail_clk: usb_put_hcd(hcd); return err; } @@ -208,8 +197,6 @@ static void exynos_ohci_remove(struct platform_device *pdev) exynos_ohci_phy_disable(&pdev->dev); - clk_disable_unprepare(exynos_ohci->clk); - usb_put_hcd(hcd); } @@ -221,7 +208,6 @@ static void exynos_ohci_shutdown(struct platform_device *pdev) hcd->driver->shutdown(hcd); } -#ifdef CONFIG_PM static int exynos_ohci_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); @@ -258,19 +244,13 @@ static int exynos_ohci_resume(struct device *dev) return 0; } -#else -#define exynos_ohci_suspend NULL -#define exynos_ohci_resume NULL -#endif static const struct ohci_driver_overrides exynos_overrides __initconst = { .extra_priv_size = sizeof(struct exynos_ohci_hcd), }; -static const struct dev_pm_ops exynos_ohci_pm_ops = { - .suspend = exynos_ohci_suspend, - .resume = exynos_ohci_resume, -}; +static DEFINE_SIMPLE_DEV_PM_OPS(exynos_ohci_pm_ops, + exynos_ohci_suspend, exynos_ohci_resume); #ifdef CONFIG_OF static const struct of_device_id exynos_ohci_match[] = { @@ -282,11 +262,11 @@ MODULE_DEVICE_TABLE(of, exynos_ohci_match); static struct platform_driver exynos_ohci_driver = { .probe = exynos_ohci_probe, - .remove_new = exynos_ohci_remove, + .remove = exynos_ohci_remove, .shutdown = exynos_ohci_shutdown, .driver = { .name = "exynos-ohci", - .pm = &exynos_ohci_pm_ops, + .pm = pm_ptr(&exynos_ohci_pm_ops), .of_match_table = of_match_ptr(exynos_ohci_match), } }; @@ -308,4 +288,5 @@ module_exit(ohci_exynos_cleanup); MODULE_ALIAS("platform:exynos-ohci"); MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>"); +MODULE_DESCRIPTION("OHCI support for Samsung S5P/Exynos SoC Series"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 4f9982ecfb58..c7784bf8101d 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -44,7 +44,7 @@ #include <asm/io.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <asm/byteorder.h> @@ -888,6 +888,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) /* Check for an all 1's result which is a typical consequence * of dead, unclocked, or unplugged (CardBus...) devices */ +again: if (ints == ~(u32)0) { ohci->rh_state = OHCI_RH_HALTED; ohci_dbg (ohci, "device removed!\n"); @@ -982,6 +983,13 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) } spin_unlock(&ohci->lock); + /* repeat until all enabled interrupts are handled */ + if (ohci->rh_state != OHCI_RH_HALTED) { + ints = ohci_readl(ohci, ®s->intrstatus); + if (ints && (ints & ohci_readl(ohci, ®s->intrenable))) + goto again; + } + return IRQ_HANDLED; } @@ -995,7 +1003,7 @@ static void ohci_stop (struct usb_hcd *hcd) if (quirk_nec(ohci)) flush_work(&ohci->nec_work); - del_timer_sync(&ohci->io_watchdog); + timer_delete_sync(&ohci->io_watchdog); ohci->prev_frame_no = IO_WATCHDOG_OFF; ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 90cee192e96d..b3d734ab6201 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -315,7 +315,7 @@ static int ohci_bus_suspend (struct usb_hcd *hcd) spin_unlock_irq (&ohci->lock); if (rc == 0) { - del_timer_sync(&ohci->io_watchdog); + timer_delete_sync(&ohci->io_watchdog); ohci->prev_frame_no = IO_WATCHDOG_OFF; } return rc; diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index 8264c454f6bd..24d5a1dc5056 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -51,8 +51,6 @@ static struct hc_driver __read_mostly ohci_nxp_hc_driver; static struct i2c_client *isp1301_i2c_client; -static struct clk *usb_host_clk; - static void isp1301_configure_lpc32xx(void) { /* LPC32XX only supports DAT_SE0 USB mode */ @@ -155,6 +153,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) struct resource *res; int ret = 0, irq; struct device_node *isp1301_node; + struct clk *usb_host_clk; if (pdev->dev.of_node) { isp1301_node = of_parse_phandle(pdev->dev.of_node, @@ -180,26 +179,20 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) } /* Enable USB host clock */ - usb_host_clk = devm_clk_get(&pdev->dev, NULL); + usb_host_clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(usb_host_clk)) { - dev_err(&pdev->dev, "failed to acquire USB OHCI clock\n"); + dev_err(&pdev->dev, "failed to acquire and start USB OHCI clock\n"); ret = PTR_ERR(usb_host_clk); goto fail_disable; } - ret = clk_prepare_enable(usb_host_clk); - if (ret < 0) { - dev_err(&pdev->dev, "failed to start USB OHCI clock\n"); - goto fail_disable; - } - isp1301_configure(); hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { dev_err(&pdev->dev, "Failed to allocate HC buffer\n"); ret = -ENOMEM; - goto fail_hcd; + goto fail_disable; } hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); @@ -229,8 +222,6 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) ohci_nxp_stop_hc(); fail_resource: usb_put_hcd(hcd); -fail_hcd: - clk_disable_unprepare(usb_host_clk); fail_disable: isp1301_i2c_client = NULL; return ret; @@ -243,7 +234,6 @@ static void ohci_hcd_nxp_remove(struct platform_device *pdev) usb_remove_hcd(hcd); ohci_nxp_stop_hc(); usb_put_hcd(hcd); - clk_disable_unprepare(usb_host_clk); isp1301_i2c_client = NULL; } @@ -264,7 +254,7 @@ static struct platform_driver ohci_hcd_nxp_driver = { .of_match_table = of_match_ptr(ohci_hcd_nxp_match), }, .probe = ohci_hcd_nxp_probe, - .remove_new = ohci_hcd_nxp_remove, + .remove = ohci_hcd_nxp_remove, }; static int __init ohci_nxp_init(void) diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 21a6f6c55e07..f6e56c4b9914 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -152,7 +152,7 @@ static int ohci_omap_reset(struct usb_hcd *hcd) rh &= ~RH_A_NOCP; - /* gpio9 for overcurrent detction */ + /* gpio9 for overcurrent detection */ omap_cfg_reg(W8_1610_GPIO9); /* for paranoia's sake: disable USB.PUEN */ @@ -390,7 +390,7 @@ static int ohci_omap_resume(struct platform_device *dev) */ static struct platform_driver ohci_hcd_omap_driver = { .probe = ohci_hcd_omap_probe, - .remove_new = ohci_hcd_omap_remove, + .remove = ohci_hcd_omap_remove, .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_omap_suspend, diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 900ea0d368e0..9f0a6b27e47c 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -165,6 +165,25 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd) return 0; } +static int ohci_quirk_loongson(struct usb_hcd *hcd) +{ + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + + /* + * Loongson's LS7A OHCI controller (rev 0x02) has a + * flaw. MMIO register with offset 0x60/64 is treated + * as legacy PS2-compatible keyboard/mouse interface. + * Since OHCI only use 4KB BAR resource, LS7A OHCI's + * 32KB BAR is wrapped around (the 2nd 4KB BAR space + * is the same as the 1st 4KB internally). So add 4KB + * offset (0x1000) to the OHCI registers as a quirk. + */ + if (pdev->revision == 0x2) + hcd->regs += SZ_4K; /* SZ_4K = 0x1000 */ + + return 0; +} + static int ohci_quirk_qemu(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); @@ -225,6 +244,10 @@ static const struct pci_device_id ohci_pci_quirks[] = { .driver_data = (unsigned long)ohci_quirk_amd700, }, { + PCI_DEVICE(PCI_VENDOR_ID_LOONGSON, 0x7a24), + .driver_data = (unsigned long)ohci_quirk_loongson, + }, + { .vendor = PCI_VENDOR_ID_APPLE, .device = 0x003f, .subvendor = PCI_SUBVENDOR_ID_REDHAT_QUMRANET, diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index 4a75507325dd..f47ae12cde6a 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -344,7 +344,7 @@ static const struct dev_pm_ops ohci_platform_pm_ops = { static struct platform_driver ohci_platform_driver = { .id_table = ohci_platform_table, .probe = ohci_platform_probe, - .remove_new = ohci_platform_remove, + .remove = ohci_platform_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ohci-platform", diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index f64bfe5f4d4d..acd0a0e398a4 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -204,10 +204,6 @@ static const struct of_device_id ohci_hcd_ppc_of_match[] = { #ifdef CONFIG_USB_OHCI_HCD_PPC_OF_LE { .name = "usb", - .compatible = "ohci-littledian", - }, - { - .name = "usb", .compatible = "ohci-le", }, #endif @@ -223,7 +219,7 @@ MODULE_DEVICE_TABLE(of, ohci_hcd_ppc_of_match); static struct platform_driver ohci_hcd_ppc_of_driver = { .probe = ohci_hcd_ppc_of_probe, - .remove_new = ohci_hcd_ppc_of_remove, + .remove = ohci_hcd_ppc_of_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ppc-of-ohci", diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 3348c25ddb18..45d026e85168 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -569,7 +569,7 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = { static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_probe, - .remove_new = ohci_hcd_pxa27x_remove, + .remove = ohci_hcd_pxa27x_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "pxa27x-ohci", diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index c5c9b4cbcb9a..66d970854357 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -457,7 +457,7 @@ MODULE_DEVICE_TABLE(of, ohci_hcd_s3c2410_dt_ids); static struct platform_driver ohci_hcd_s3c2410_driver = { .probe = ohci_hcd_s3c2410_probe, - .remove_new = ohci_hcd_s3c2410_remove, + .remove = ohci_hcd_s3c2410_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "s3c2410-ohci", diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index 4b39e9d6f33a..843a5378764e 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -252,7 +252,7 @@ static int ohci_sm501_resume(struct platform_device *pdev) */ static struct platform_driver ohci_hcd_sm501_driver = { .probe = ohci_hcd_sm501_drv_probe, - .remove_new = ohci_hcd_sm501_drv_remove, + .remove = ohci_hcd_sm501_drv_remove, .shutdown = usb_hcd_platform_shutdown, .suspend = ohci_sm501_suspend, .resume = ohci_sm501_resume, diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index 993f347c5c28..d7131e5a4477 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -157,7 +157,7 @@ MODULE_DEVICE_TABLE(of, spear_ohci_id_table); /* Driver definition to register with the platform bus */ static struct platform_driver spear_ohci_hcd_driver = { .probe = spear_ohci_hcd_drv_probe, - .remove_new = spear_ohci_hcd_drv_remove, + .remove = spear_ohci_hcd_drv_remove, #ifdef CONFIG_PM .suspend = spear_ohci_hcd_drv_suspend, .resume = spear_ohci_hcd_drv_resume, diff --git a/drivers/usb/host/ohci-st.c b/drivers/usb/host/ohci-st.c index 214342013f7e..d1656fce5400 100644 --- a/drivers/usb/host/ohci-st.c +++ b/drivers/usb/host/ohci-st.c @@ -298,7 +298,7 @@ MODULE_DEVICE_TABLE(of, st_ohci_platform_ids); static struct platform_driver ohci_platform_driver = { .probe = st_ohci_platform_probe, - .remove_new = st_ohci_platform_remove, + .remove = st_ohci_platform_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "st-ohci", diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index d467472f9d3c..d75b1b9b4db0 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -15,6 +15,7 @@ #include <linux/ioport.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/errno.h> #include <linux/timer.h> #include <linux/list.h> @@ -27,7 +28,7 @@ #include <linux/iopoll.h> #include <asm/irq.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/irq.h> #include <linux/platform_device.h> @@ -196,31 +197,6 @@ struct ehci_regs { #define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC) } __packed; -/* Appendix C, Debug port ... intended for use with special "debug devices" - * that can help if there's no serial console. (nonstandard enumeration.) - */ -struct ehci_dbg_port { - u32 control; -#define DBGP_OWNER (1<<30) -#define DBGP_ENABLED (1<<28) -#define DBGP_DONE (1<<16) -#define DBGP_INUSE (1<<10) -#define DBGP_ERRCODE(x) (((x)>>7)&0x07) -# define DBGP_ERR_BAD 1 -# define DBGP_ERR_SIGNAL 2 -#define DBGP_ERROR (1<<6) -#define DBGP_GO (1<<5) -#define DBGP_OUT (1<<4) -#define DBGP_LEN(x) (((x)>>0)&0x0f) - u32 pids; -#define DBGP_PID_GET(x) (((x)>>16)&0xff) -#define DBGP_PID_SET(data, tok) (((data)<<8)|(tok)) - u32 data03; - u32 data47; - u32 address; -#define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep)) -} __packed; - #define QTD_NEXT(dma) cpu_to_le32((u32)dma) /* @@ -910,7 +886,7 @@ static int oxu_buf_alloc(struct oxu_hcd *oxu, struct ehci_qtd *qtd, int len) int a_blocks; /* blocks allocated */ int i, j; - /* Don't allocte bigger than supported */ + /* Don't allocate bigger than supported */ if (len > BUFFER_SIZE * BUFFER_NUM) { oxu_err(oxu, "buffer too big (%d)\n", len); return -ENOMEM; @@ -927,7 +903,7 @@ static int oxu_buf_alloc(struct oxu_hcd *oxu, struct ehci_qtd *qtd, int len) /* Find a suitable available data buffer */ for (i = 0; i < BUFFER_NUM; - i += max(a_blocks, (int)oxu->db_used[i])) { + i += max_t(int, a_blocks, oxu->db_used[i])) { /* Check all the required blocks are available */ for (j = 0; j < a_blocks; j++) @@ -1151,7 +1127,7 @@ static void ehci_mem_cleanup(struct oxu_hcd *oxu) qh_put(oxu->async); oxu->async = NULL; - del_timer(&oxu->urb_timer); + timer_delete(&oxu->urb_timer); oxu->periodic = NULL; @@ -2781,7 +2757,7 @@ static void ehci_port_power(struct oxu_hcd *oxu, int is_on) if (!HCS_PPC(oxu->hcs_params)) return; - oxu_dbg(oxu, "...power%s ports...\n", is_on ? "up" : "down"); + oxu_dbg(oxu, "...power%s ports...\n", str_up_down(is_on)); for (port = HCS_N_PORTS(oxu->hcs_params); port > 0; ) { if (is_on) oxu_hub_control(oxu_to_hcd(oxu), SetPortFeature, @@ -3065,7 +3041,7 @@ static int oxu_hcd_init(struct usb_hcd *hcd) * make problems: throughput reduction (!), data errors... */ if (park) { - park = min(park, (unsigned) 3); + park = min_t(unsigned int, park, 3); temp |= CMD_PARK; temp |= park << 8; } @@ -3178,7 +3154,7 @@ static void oxu_stop(struct usb_hcd *hcd) ehci_port_power(oxu, 0); /* no more interrupts ... */ - del_timer_sync(&oxu->watchdog); + timer_delete_sync(&oxu->watchdog); spin_lock_irq(&oxu->lock); if (HC_IS_RUNNING(hcd->state)) @@ -3911,7 +3887,7 @@ static int oxu_bus_suspend(struct usb_hcd *hcd) spin_unlock_irq(&oxu->lock); /* turn off now-idle HC */ - del_timer_sync(&oxu->watchdog); + timer_delete_sync(&oxu->watchdog); spin_lock_irq(&oxu->lock); ehci_halt(oxu); hcd->state = HC_STATE_SUSPENDED; @@ -4314,7 +4290,7 @@ static int oxu_drv_resume(struct device *dev) static struct platform_driver oxu_driver = { .probe = oxu_drv_probe, - .remove_new = oxu_drv_remove, + .remove = oxu_drv_remove, .shutdown = oxu_drv_shutdown, .suspend = oxu_drv_suspend, .resume = oxu_drv_resume, diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 1f9c1b1435d8..0404489c2f6a 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -958,6 +958,15 @@ static void quirk_usb_disable_ehci(struct pci_dev *pdev) * booting from USB disk or using a usb keyboard */ hcc_params = readl(base + EHCI_HCC_PARAMS); + + /* LS7A EHCI controller doesn't have extended capabilities, the + * EECP (EHCI Extended Capabilities Pointer) field of HCCPARAMS + * register should be 0x0 but it reads as 0xa0. So clear it to + * avoid error messages on boot. + */ + if (pdev->vendor == PCI_VENDOR_ID_LOONGSON && pdev->device == 0x7a14) + hcc_params &= ~(0xffL << 8); + offset = (hcc_params >> 8) & 0xff; while (offset && --count) { pci_read_config_dword(pdev, offset, &cap); diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 9f4bf8c5f8a5..67e472116d11 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -297,9 +297,9 @@ static void put_child_connect_map(struct r8a66597 *r8a66597, int address) static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) { u16 pipenum = pipe->info.pipenum; - const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; - const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; - const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; + static const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; + static const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; + static const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ dma_ch = R8A66597_PIPE_NO_DMA; @@ -759,7 +759,7 @@ static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, struct r8a66597_pipe_info *info = &pipe->info; unsigned short mbw = mbw_value(r8a66597); - /* pipe dma is only for external controlles */ + /* pipe dma is only for external controllers */ if (r8a66597->pdata->on_chip) return; @@ -1336,7 +1336,7 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) buf = (void *)urb->transfer_buffer + urb->actual_length; urb_len = urb->transfer_buffer_length - urb->actual_length; } - bufsize = min(urb_len, (int) td->maxpacket); + bufsize = min_t(int, urb_len, td->maxpacket); if (rcv_len <= bufsize) { size = rcv_len; } else { @@ -2384,7 +2384,7 @@ static void r8a66597_remove(struct platform_device *pdev) struct r8a66597 *r8a66597 = platform_get_drvdata(pdev); struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); - del_timer_sync(&r8a66597->rh_timer); + timer_delete_sync(&r8a66597->rh_timer); usb_remove_hcd(hcd); iounmap(r8a66597->reg); if (r8a66597->pdata->on_chip) @@ -2510,7 +2510,7 @@ clean_up: static struct platform_driver r8a66597_driver = { .probe = r8a66597_probe, - .remove_new = r8a66597_remove, + .remove = r8a66597_remove, .driver = { .name = hcd_name, .pm = R8A66597_DEV_PM_OPS, diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 2b871540bb50..718b1b7fe366 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -48,13 +48,14 @@ #include <linux/usb/hcd.h> #include <linux/platform_device.h> #include <linux/prefetch.h> +#include <linux/string_choices.h> #include <linux/debugfs.h> #include <linux/seq_file.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "sl811.h" @@ -98,7 +99,7 @@ static void port_power(struct sl811 *sl811, int is_on) if (sl811->board && sl811->board->port_power) { /* switch VBUS, at 500mA unless hub power budget gets set */ dev_dbg(hcd->self.controller, "power %s\n", - is_on ? "on" : "off"); + str_on_off(is_on)); sl811->board->port_power(hcd->self.controller, is_on); } @@ -1514,7 +1515,7 @@ sl811h_stop(struct usb_hcd *hcd) struct sl811 *sl811 = hcd_to_sl811(hcd); unsigned long flags; - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); spin_lock_irqsave(&sl811->lock, flags); port_power(sl811, 0); @@ -1784,7 +1785,7 @@ sl811h_resume(struct platform_device *dev) /* this driver is exported so sl811_cs can depend on it */ struct platform_driver sl811h_driver = { .probe = sl811h_probe, - .remove_new = sl811h_remove, + .remove = sl811h_remove, .suspend = sl811h_suspend, .resume = sl811h_resume, diff --git a/drivers/usb/host/uhci-grlib.c b/drivers/usb/host/uhci-grlib.c index cfebb833668e..8a1f6d1b5b56 100644 --- a/drivers/usb/host/uhci-grlib.c +++ b/drivers/usb/host/uhci-grlib.c @@ -184,7 +184,7 @@ MODULE_DEVICE_TABLE(of, uhci_hcd_grlib_of_match); static struct platform_driver uhci_grlib_driver = { .probe = uhci_hcd_grlib_probe, - .remove_new = uhci_hcd_grlib_remove, + .remove = uhci_hcd_grlib_remove, .shutdown = uhci_hcd_grlib_shutdown, .driver = { .name = "grlib-uhci", diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index fd2408b553cf..14e6dfef16c6 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -716,7 +716,7 @@ static void uhci_stop(struct usb_hcd *hcd) spin_unlock_irq(&uhci->lock); synchronize_irq(hcd->irq); - del_timer_sync(&uhci->fsbr_timer); + timer_delete_sync(&uhci->fsbr_timer); release_uhci(uhci); } diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index 3dec5dd3a0d5..62318291f566 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -121,7 +121,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev) } /* Get and enable clock if any specified */ - uhci->clk = devm_clk_get(&pdev->dev, NULL); + uhci->clk = devm_clk_get_optional(&pdev->dev, NULL); if (IS_ERR(uhci->clk)) { ret = PTR_ERR(uhci->clk); goto err_rmr; @@ -184,7 +184,7 @@ MODULE_DEVICE_TABLE(of, platform_uhci_ids); static struct platform_driver uhci_platform_driver = { .probe = uhci_hcd_platform_probe, - .remove_new = uhci_hcd_platform_remove, + .remove = uhci_hcd_platform_remove, .shutdown = uhci_hcd_platform_shutdown, .driver = { .name = "platform-uhci", diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 35fcb826152c..45a8256a665f 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -84,7 +84,7 @@ static void uhci_urbp_wants_fsbr(struct uhci_hcd *uhci, struct urb_priv *urbp) uhci_fsbr_on(uhci); else if (uhci->fsbr_expiring) { uhci->fsbr_expiring = 0; - del_timer(&uhci->fsbr_timer); + timer_delete(&uhci->fsbr_timer); } } } diff --git a/drivers/usb/host/xen-hcd.c b/drivers/usb/host/xen-hcd.c index 46fdab940092..05943f2213e4 100644 --- a/drivers/usb/host/xen-hcd.c +++ b/drivers/usb/host/xen-hcd.c @@ -327,7 +327,7 @@ static int xenhcd_bus_suspend(struct usb_hcd *hcd) } spin_unlock_irq(&info->lock); - del_timer_sync(&info->watchdog); + timer_delete_sync(&info->watchdog); return ret; } @@ -1307,7 +1307,7 @@ static void xenhcd_stop(struct usb_hcd *hcd) { struct xenhcd_info *info = xenhcd_hcd_to_info(hcd); - del_timer_sync(&info->watchdog); + timer_delete_sync(&info->watchdog); spin_lock_irq(&info->lock); /* cancel all urbs */ hcd->state = HC_STATE_HALT; diff --git a/drivers/usb/host/xhci-caps.h b/drivers/usb/host/xhci-caps.h index 9e94cebf4a56..f6b9a00a0ab9 100644 --- a/drivers/usb/host/xhci-caps.h +++ b/drivers/usb/host/xhci-caps.h @@ -83,3 +83,9 @@ #define HCC2_CIC(p) ((p) & (1 << 5)) /* true: HC support Extended TBC Capability, Isoc burst count > 65535 */ #define HCC2_ETC(p) ((p) & (1 << 6)) +/* true: HC support Extended TBC TRB Status Capability */ +#define HCC2_ETC_TSC(p) ((p) & (1 << 7)) +/* true: HC support Get/Set Extended Property Capability */ +#define HCC2_GSC(p) ((p) & (1 << 8)) +/* true: HC support Virtualization Based Trusted I/O Capability */ +#define HCC2_VTC(p) ((p) & (1 << 9)) diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 8a9869ef0db6..0d4ce5734165 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -173,16 +173,18 @@ static void xhci_dbc_giveback(struct dbc_request *req, int status) spin_lock(&dbc->lock); } -static void xhci_dbc_flush_single_request(struct dbc_request *req) +static void trb_to_noop(union xhci_trb *trb) { - union xhci_trb *trb = req->trb; - trb->generic.field[0] = 0; trb->generic.field[1] = 0; trb->generic.field[2] = 0; trb->generic.field[3] &= cpu_to_le32(TRB_CYCLE); trb->generic.field[3] |= cpu_to_le32(TRB_TYPE(TRB_TR_NOOP)); +} +static void xhci_dbc_flush_single_request(struct dbc_request *req) +{ + trb_to_noop(req->trb); xhci_dbc_giveback(req, -ESHUTDOWN); } @@ -246,8 +248,9 @@ xhci_dbc_queue_trb(struct xhci_ring *ring, u32 field1, trb->generic.field[2] = cpu_to_le32(field3); trb->generic.field[3] = cpu_to_le32(field4); - trace_xhci_dbc_gadget_ep_queue(ring, &trb->generic); - + trace_xhci_dbc_gadget_ep_queue(ring, &trb->generic, + xhci_trb_virt_to_dma(ring->enq_seg, + ring->enqueue)); ring->num_trbs_free--; next = ++(ring->enqueue); if (TRB_TYPE_LINK_LE32(next->link.control)) { @@ -469,7 +472,7 @@ xhci_dbc_ring_alloc(struct device *dev, enum xhci_ring_type type, gfp_t flags) trb->link.control = cpu_to_le32(LINK_TOGGLE | TRB_TYPE(TRB_LINK)); } INIT_LIST_HEAD(&ring->td_list); - xhci_initialize_ring_info(ring, 1); + xhci_initialize_ring_info(ring); return ring; dma_fail: kfree(seg); @@ -516,7 +519,7 @@ static int xhci_dbc_mem_init(struct xhci_dbc *dbc, gfp_t flags) goto string_fail; /* Setup ERST register: */ - writel(dbc->erst.erst_size, &dbc->regs->ersts); + writel(dbc->erst.num_entries, &dbc->regs->ersts); lo_hi_writeq(dbc->erst.erst_dma_addr, &dbc->regs->erstba); deq = xhci_trb_virt_to_dma(dbc->ring_evt->deq_seg, @@ -649,7 +652,6 @@ static void xhci_dbc_stop(struct xhci_dbc *dbc) case DS_DISABLED: return; case DS_CONFIGURED: - case DS_STALLED: if (dbc->driver->disconnect) dbc->driver->disconnect(dbc); break; @@ -670,6 +672,23 @@ static void xhci_dbc_stop(struct xhci_dbc *dbc) } static void +handle_ep_halt_changes(struct xhci_dbc *dbc, struct dbc_ep *dep, bool halted) +{ + if (halted) { + dev_info(dbc->dev, "DbC Endpoint halted\n"); + dep->halted = 1; + + } else if (dep->halted) { + dev_info(dbc->dev, "DbC Endpoint halt cleared\n"); + dep->halted = 0; + + if (!list_empty(&dep->list_pending)) + writel(DBC_DOOR_BELL_TARGET(dep->direction), + &dbc->regs->doorbell); + } +} + +static void dbc_handle_port_status(struct xhci_dbc *dbc, union xhci_trb *event) { u32 portsc; @@ -697,6 +716,7 @@ static void dbc_handle_xfer_event(struct xhci_dbc *dbc, union xhci_trb *event) struct xhci_ring *ring; int ep_id; int status; + struct xhci_ep_ctx *ep_ctx; u32 comp_code; size_t remain_length; struct dbc_request *req = NULL, *r; @@ -706,8 +726,30 @@ static void dbc_handle_xfer_event(struct xhci_dbc *dbc, union xhci_trb *event) ep_id = TRB_TO_EP_ID(le32_to_cpu(event->generic.field[3])); dep = (ep_id == EPID_OUT) ? get_out_ep(dbc) : get_in_ep(dbc); + ep_ctx = (ep_id == EPID_OUT) ? + dbc_bulkout_ctx(dbc) : dbc_bulkin_ctx(dbc); ring = dep->ring; + /* Match the pending request: */ + list_for_each_entry(r, &dep->list_pending, list_pending) { + if (r->trb_dma == event->trans_event.buffer) { + req = r; + break; + } + if (r->status == -COMP_STALL_ERROR) { + dev_warn(dbc->dev, "Give back stale stalled req\n"); + ring->num_trbs_free++; + xhci_dbc_giveback(r, 0); + } + } + + if (!req) { + dev_warn(dbc->dev, "no matched request\n"); + return; + } + + trace_xhci_dbc_handle_transfer(ring, &req->trb->generic, req->trb_dma); + switch (comp_code) { case COMP_SUCCESS: remain_length = 0; @@ -718,31 +760,49 @@ static void dbc_handle_xfer_event(struct xhci_dbc *dbc, union xhci_trb *event) case COMP_TRB_ERROR: case COMP_BABBLE_DETECTED_ERROR: case COMP_USB_TRANSACTION_ERROR: - case COMP_STALL_ERROR: dev_warn(dbc->dev, "tx error %d detected\n", comp_code); status = -comp_code; break; + case COMP_STALL_ERROR: + dev_warn(dbc->dev, "Stall error at bulk TRB %llx, remaining %zu, ep deq %llx\n", + event->trans_event.buffer, remain_length, ep_ctx->deq); + status = 0; + dep->halted = 1; + + /* + * xHC DbC may trigger a STALL bulk xfer event when host sends a + * ClearFeature(ENDPOINT_HALT) request even if there wasn't an + * active bulk transfer. + * + * Don't give back this transfer request as hardware will later + * start processing TRBs starting from this 'STALLED' TRB, + * causing TRBs and requests to be out of sync. + * + * If STALL event shows some bytes were transferred then assume + * it's an actual transfer issue and give back the request. + * In this case mark the TRB as No-Op to avoid hw from using the + * TRB again. + */ + + if ((ep_ctx->deq & ~TRB_CYCLE) == event->trans_event.buffer) { + dev_dbg(dbc->dev, "Ep stopped on Stalled TRB\n"); + if (remain_length == req->length) { + dev_dbg(dbc->dev, "Spurious stall event, keep req\n"); + req->status = -COMP_STALL_ERROR; + req->actual = 0; + return; + } + dev_dbg(dbc->dev, "Give back stalled req, but turn TRB to No-op\n"); + trb_to_noop(req->trb); + } + break; + default: dev_err(dbc->dev, "unknown tx error %d\n", comp_code); status = -comp_code; break; } - /* Match the pending request: */ - list_for_each_entry(r, &dep->list_pending, list_pending) { - if (r->trb_dma == event->trans_event.buffer) { - req = r; - break; - } - } - - if (!req) { - dev_warn(dbc->dev, "no matched request\n"); - return; - } - - trace_xhci_dbc_handle_transfer(ring, &req->trb->generic); - ring->num_trbs_free++; req->actual = req->length - remain_length; xhci_dbc_giveback(req, status); @@ -762,8 +822,8 @@ static void inc_evt_deq(struct xhci_ring *ring) static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) { dma_addr_t deq; - struct dbc_ep *dep; union xhci_trb *evt; + enum evtreturn ret = EVT_DONE; u32 ctrl, portsc; bool update_erdp = false; @@ -814,43 +874,17 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) return EVT_DISC; } - /* Handle endpoint stall event: */ + /* Check and handle changes in endpoint halt status */ ctrl = readl(&dbc->regs->control); - if ((ctrl & DBC_CTRL_HALT_IN_TR) || - (ctrl & DBC_CTRL_HALT_OUT_TR)) { - dev_info(dbc->dev, "DbC Endpoint stall\n"); - dbc->state = DS_STALLED; - - if (ctrl & DBC_CTRL_HALT_IN_TR) { - dep = get_in_ep(dbc); - xhci_dbc_flush_endpoint_requests(dep); - } - - if (ctrl & DBC_CTRL_HALT_OUT_TR) { - dep = get_out_ep(dbc); - xhci_dbc_flush_endpoint_requests(dep); - } - - return EVT_DONE; - } + handle_ep_halt_changes(dbc, get_in_ep(dbc), ctrl & DBC_CTRL_HALT_IN_TR); + handle_ep_halt_changes(dbc, get_out_ep(dbc), ctrl & DBC_CTRL_HALT_OUT_TR); /* Clear DbC run change bit: */ if (ctrl & DBC_CTRL_DBC_RUN_CHANGE) { writel(ctrl, &dbc->regs->control); ctrl = readl(&dbc->regs->control); } - break; - case DS_STALLED: - ctrl = readl(&dbc->regs->control); - if (!(ctrl & DBC_CTRL_HALT_IN_TR) && - !(ctrl & DBC_CTRL_HALT_OUT_TR) && - (ctrl & DBC_CTRL_DBC_RUN)) { - dbc->state = DS_CONFIGURED; - break; - } - - return EVT_DONE; default: dev_err(dbc->dev, "Unknown DbC state %d\n", dbc->state); break; @@ -866,7 +900,9 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) */ rmb(); - trace_xhci_dbc_handle_event(dbc->ring_evt, &evt->generic); + trace_xhci_dbc_handle_event(dbc->ring_evt, &evt->generic, + xhci_trb_virt_to_dma(dbc->ring_evt->deq_seg, + dbc->ring_evt->dequeue)); switch (le32_to_cpu(evt->event_cmd.flags) & TRB_TYPE_BITMASK) { case TRB_TYPE(TRB_PORT_STATUS): @@ -874,6 +910,7 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) break; case TRB_TYPE(TRB_TRANSFER): dbc_handle_xfer_event(dbc, evt); + ret = EVT_XFER_DONE; break; default: break; @@ -892,7 +929,7 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) lo_hi_writeq(deq, &dbc->regs->erdp); } - return EVT_DONE; + return ret; } static void xhci_dbc_handle_events(struct work_struct *work) @@ -901,6 +938,7 @@ static void xhci_dbc_handle_events(struct work_struct *work) struct xhci_dbc *dbc; unsigned long flags; unsigned int poll_interval; + unsigned long busypoll_timelimit; dbc = container_of(to_delayed_work(work), struct xhci_dbc, event_work); poll_interval = dbc->poll_interval; @@ -919,10 +957,20 @@ static void xhci_dbc_handle_events(struct work_struct *work) dbc->driver->disconnect(dbc); break; case EVT_DONE: - /* set fast poll rate if there are pending data transfers */ + /* + * Set fast poll rate if there are pending out transfers, or + * a transfer was recently processed + */ + busypoll_timelimit = dbc->xfer_timestamp + + msecs_to_jiffies(DBC_XFER_INACTIVITY_TIMEOUT); + if (!list_empty(&dbc->eps[BULK_OUT].list_pending) || - !list_empty(&dbc->eps[BULK_IN].list_pending)) - poll_interval = 1; + time_is_after_jiffies(busypoll_timelimit)) + poll_interval = 0; + break; + case EVT_XFER_DONE: + dbc->xfer_timestamp = jiffies; + poll_interval = 0; break; default: dev_info(dbc->dev, "stop handling dbc events\n"); @@ -939,7 +987,6 @@ static const char * const dbc_state_strings[DS_MAX] = { [DS_ENABLED] = "enabled", [DS_CONNECTED] = "connected", [DS_CONFIGURED] = "configured", - [DS_STALLED] = "stalled", }; static ssize_t dbc_show(struct device *dev, @@ -1150,11 +1197,48 @@ static ssize_t dbc_bInterfaceProtocol_store(struct device *dev, return size; } +static ssize_t dbc_poll_interval_ms_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct xhci_dbc *dbc; + struct xhci_hcd *xhci; + + xhci = hcd_to_xhci(dev_get_drvdata(dev)); + dbc = xhci->dbc; + + return sysfs_emit(buf, "%u\n", dbc->poll_interval); +} + +static ssize_t dbc_poll_interval_ms_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct xhci_dbc *dbc; + struct xhci_hcd *xhci; + u32 value; + int ret; + + ret = kstrtou32(buf, 0, &value); + if (ret || value > DBC_POLL_INTERVAL_MAX) + return -EINVAL; + + xhci = hcd_to_xhci(dev_get_drvdata(dev)); + dbc = xhci->dbc; + + dbc->poll_interval = value; + + mod_delayed_work(system_wq, &dbc->event_work, 0); + + return size; +} + static DEVICE_ATTR_RW(dbc); static DEVICE_ATTR_RW(dbc_idVendor); static DEVICE_ATTR_RW(dbc_idProduct); static DEVICE_ATTR_RW(dbc_bcdDevice); static DEVICE_ATTR_RW(dbc_bInterfaceProtocol); +static DEVICE_ATTR_RW(dbc_poll_interval_ms); static struct attribute *dbc_dev_attrs[] = { &dev_attr_dbc.attr, @@ -1162,6 +1246,7 @@ static struct attribute *dbc_dev_attrs[] = { &dev_attr_dbc_idProduct.attr, &dev_attr_dbc_bcdDevice.attr, &dev_attr_dbc_bInterfaceProtocol.attr, + &dev_attr_dbc_poll_interval_ms.attr, NULL }; ATTRIBUTE_GROUPS(dbc_dev); diff --git a/drivers/usb/host/xhci-dbgcap.h b/drivers/usb/host/xhci-dbgcap.h index 92661b555c2a..47ac72c2286d 100644 --- a/drivers/usb/host/xhci-dbgcap.h +++ b/drivers/usb/host/xhci-dbgcap.h @@ -81,7 +81,6 @@ enum dbc_state { DS_ENABLED, DS_CONNECTED, DS_CONFIGURED, - DS_STALLED, DS_MAX }; @@ -90,12 +89,14 @@ struct dbc_ep { struct list_head list_pending; struct xhci_ring *ring; unsigned int direction:1; + unsigned int halted:1; }; #define DBC_QUEUE_SIZE 16 #define DBC_WRITE_BUF_SIZE 8192 #define DBC_POLL_INTERVAL_DEFAULT 64 /* milliseconds */ - +#define DBC_POLL_INTERVAL_MAX 5000 /* milliseconds */ +#define DBC_XFER_INACTIVITY_TIMEOUT 10 /* milliseconds */ /* * Private structure for DbC hardware state: */ @@ -110,7 +111,7 @@ struct dbc_port { struct tasklet_struct push; struct list_head write_pool; - struct kfifo write_fifo; + unsigned int tx_boundary; bool registered; }; @@ -142,6 +143,7 @@ struct xhci_dbc { enum dbc_state state; struct delayed_work event_work; unsigned int poll_interval; /* ms */ + unsigned long xfer_timestamp; unsigned resume_required:1; struct dbc_ep eps[2]; @@ -187,6 +189,7 @@ struct dbc_request { enum evtreturn { EVT_ERR = -1, EVT_DONE, + EVT_XFER_DONE, EVT_GSER, EVT_DISC, }; diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c index b74e98e94393..60ed753c85bb 100644 --- a/drivers/usb/host/xhci-dbgtty.c +++ b/drivers/usb/host/xhci-dbgtty.c @@ -25,16 +25,26 @@ static inline struct dbc_port *dbc_to_port(struct xhci_dbc *dbc) } static unsigned int -dbc_send_packet(struct dbc_port *port, char *packet, unsigned int size) +dbc_kfifo_to_req(struct dbc_port *port, char *packet) { - unsigned int len; - - len = kfifo_len(&port->write_fifo); - if (len < size) - size = len; - if (size != 0) - size = kfifo_out(&port->write_fifo, packet, size); - return size; + unsigned int len; + + len = kfifo_len(&port->port.xmit_fifo); + + if (len == 0) + return 0; + + len = min(len, DBC_MAX_PACKET); + + if (port->tx_boundary) + len = min(port->tx_boundary, len); + + len = kfifo_out(&port->port.xmit_fifo, packet, len); + + if (port->tx_boundary) + port->tx_boundary -= len; + + return len; } static int dbc_start_tx(struct dbc_port *port) @@ -49,7 +59,7 @@ static int dbc_start_tx(struct dbc_port *port) while (!list_empty(pool)) { req = list_entry(pool->next, struct dbc_request, list_pool); - len = dbc_send_packet(port, req->buf, DBC_MAX_PACKET); + len = dbc_kfifo_to_req(port, req->buf); if (len == 0) break; do_tty_wake = true; @@ -100,15 +110,74 @@ static void dbc_start_rx(struct dbc_port *port) } } +/* + * Queue received data to tty buffer and push it. + * + * Returns nr of remaining bytes that didn't fit tty buffer, i.e. 0 if all + * bytes sucessfullt moved. In case of error returns negative errno. + * Call with lock held + */ +static int dbc_rx_push_buffer(struct dbc_port *port, struct dbc_request *req) +{ + char *packet = req->buf; + unsigned int n, size = req->actual; + int count; + + if (!req->actual) + return 0; + + /* if n_read is set then request was partially moved to tty buffer */ + n = port->n_read; + if (n) { + packet += n; + size -= n; + } + + count = tty_insert_flip_string(&port->port, packet, size); + if (count) + tty_flip_buffer_push(&port->port); + if (count != size) { + port->n_read += count; + return size - count; + } + + port->n_read = 0; + return 0; +} + static void dbc_read_complete(struct xhci_dbc *dbc, struct dbc_request *req) { unsigned long flags; struct dbc_port *port = dbc_to_port(dbc); + struct tty_struct *tty; + int untransferred; + + tty = port->port.tty; spin_lock_irqsave(&port->port_lock, flags); + + /* + * Only defer copyig data to tty buffer in case: + * - !list_empty(&port->read_queue), there are older pending data + * - tty is throttled + * - failed to copy all data to buffer, defer remaining part + */ + + if (list_empty(&port->read_queue) && tty && !tty_throttled(tty)) { + untransferred = dbc_rx_push_buffer(port, req); + if (untransferred == 0) { + list_add_tail(&req->list_pool, &port->read_pool); + if (req->status != -ESHUTDOWN) + dbc_start_rx(port); + goto out; + } + } + + /* defer moving data from req to tty buffer to a tasklet */ list_add_tail(&req->list_pool, &port->read_queue); tasklet_schedule(&port->push); +out: spin_unlock_irqrestore(&port->port_lock, flags); } @@ -213,14 +282,32 @@ static ssize_t dbc_tty_write(struct tty_struct *tty, const u8 *buf, { struct dbc_port *port = tty->driver_data; unsigned long flags; + unsigned int written = 0; spin_lock_irqsave(&port->port_lock, flags); - if (count) - count = kfifo_in(&port->write_fifo, buf, count); - dbc_start_tx(port); + + /* + * Treat tty write as one usb transfer. Make sure the writes are turned + * into TRB request having the same size boundaries as the tty writes. + * Don't add data to kfifo before previous write is turned into TRBs + */ + if (port->tx_boundary) { + spin_unlock_irqrestore(&port->port_lock, flags); + return 0; + } + + if (count) { + written = kfifo_in(&port->port.xmit_fifo, buf, count); + + if (written == count) + port->tx_boundary = kfifo_len(&port->port.xmit_fifo); + + dbc_start_tx(port); + } + spin_unlock_irqrestore(&port->port_lock, flags); - return count; + return written; } static int dbc_tty_put_char(struct tty_struct *tty, u8 ch) @@ -230,7 +317,7 @@ static int dbc_tty_put_char(struct tty_struct *tty, u8 ch) int status; spin_lock_irqsave(&port->port_lock, flags); - status = kfifo_put(&port->write_fifo, ch); + status = kfifo_put(&port->port.xmit_fifo, ch); spin_unlock_irqrestore(&port->port_lock, flags); return status; @@ -253,7 +340,11 @@ static unsigned int dbc_tty_write_room(struct tty_struct *tty) unsigned int room; spin_lock_irqsave(&port->port_lock, flags); - room = kfifo_avail(&port->write_fifo); + room = kfifo_avail(&port->port.xmit_fifo); + + if (port->tx_boundary) + room = 0; + spin_unlock_irqrestore(&port->port_lock, flags); return room; @@ -266,7 +357,7 @@ static unsigned int dbc_tty_chars_in_buffer(struct tty_struct *tty) unsigned int chars; spin_lock_irqsave(&port->port_lock, flags); - chars = kfifo_len(&port->write_fifo); + chars = kfifo_len(&port->port.xmit_fifo); spin_unlock_irqrestore(&port->port_lock, flags); return chars; @@ -299,10 +390,10 @@ static void dbc_rx_push(struct tasklet_struct *t) struct dbc_request *req; struct tty_struct *tty; unsigned long flags; - bool do_push = false; bool disconnect = false; struct dbc_port *port = from_tasklet(port, t, push); struct list_head *queue = &port->read_queue; + int untransferred; spin_lock_irqsave(&port->port_lock, flags); tty = port->port.tty; @@ -324,42 +415,15 @@ static void dbc_rx_push(struct tasklet_struct *t) break; } - if (req->actual) { - char *packet = req->buf; - unsigned int n, size = req->actual; - int count; - - n = port->n_read; - if (n) { - packet += n; - size -= n; - } - - count = tty_insert_flip_string(&port->port, packet, - size); - if (count) - do_push = true; - if (count != size) { - port->n_read += count; - break; - } - port->n_read = 0; - } + untransferred = dbc_rx_push_buffer(port, req); + if (untransferred > 0) + break; - list_move(&req->list_pool, &port->read_pool); + list_move_tail(&req->list_pool, &port->read_pool); } - if (do_push) - tty_flip_buffer_push(&port->port); - - if (!list_empty(queue) && tty) { - if (!tty_throttled(tty)) { - if (do_push) - tasklet_schedule(&port->push); - else - pr_warn("ttyDBC0: RX not scheduled?\n"); - } - } + if (!list_empty(queue)) + tasklet_schedule(&port->push); if (!disconnect) dbc_start_rx(port); @@ -424,7 +488,8 @@ static int xhci_dbc_tty_register_device(struct xhci_dbc *dbc) goto err_idr; } - ret = kfifo_alloc(&port->write_fifo, DBC_WRITE_BUF_SIZE, GFP_KERNEL); + ret = kfifo_alloc(&port->port.xmit_fifo, DBC_WRITE_BUF_SIZE, + GFP_KERNEL); if (ret) goto err_exit_port; @@ -453,7 +518,7 @@ err_free_requests: xhci_dbc_free_requests(&port->read_pool); xhci_dbc_free_requests(&port->write_pool); err_free_fifo: - kfifo_free(&port->write_fifo); + kfifo_free(&port->port.xmit_fifo); err_exit_port: idr_remove(&dbc_tty_minors, port->minor); err_idr: @@ -478,7 +543,7 @@ static void xhci_dbc_tty_unregister_device(struct xhci_dbc *dbc) idr_remove(&dbc_tty_minors, port->minor); mutex_unlock(&dbc_tty_minors_lock); - kfifo_free(&port->write_fifo); + kfifo_free(&port->port.xmit_fifo); xhci_dbc_free_requests(&port->read_pool); xhci_dbc_free_requests(&port->read_queue); xhci_dbc_free_requests(&port->write_pool); diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c index f8ba15e7c225..1f5ef174abea 100644 --- a/drivers/usb/host/xhci-debugfs.c +++ b/drivers/usb/host/xhci-debugfs.c @@ -214,14 +214,11 @@ static void xhci_ring_dump_segment(struct seq_file *s, static int xhci_ring_trb_show(struct seq_file *s, void *unused) { - int i; struct xhci_ring *ring = *(struct xhci_ring **)s->private; struct xhci_segment *seg = ring->first_seg; - for (i = 0; i < ring->num_segs; i++) { + xhci_for_each_ring_seg(ring->first_seg, seg) xhci_ring_dump_segment(s, seg); - seg = seg->next; - } return 0; } @@ -235,16 +232,7 @@ static struct xhci_file_map ring_files[] = { static int xhci_ring_open(struct inode *inode, struct file *file) { - int i; - struct xhci_file_map *f_map; - const char *file_name = file_dentry(file)->d_iname; - - for (i = 0; i < ARRAY_SIZE(ring_files); i++) { - f_map = &ring_files[i]; - - if (strcmp(f_map->name, file_name) == 0) - break; - } + const struct xhci_file_map *f_map = debugfs_get_aux(file); return single_open(file, f_map->show, inode->i_private); } @@ -291,12 +279,13 @@ static int xhci_endpoint_context_show(struct seq_file *s, void *unused) for (ep_index = 0; ep_index < 31; ep_index++) { ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); dma = dev->out_ctx->dma + (ep_index + 1) * CTX_SIZE(xhci->hcc_params); - seq_printf(s, "%pad: %s\n", &dma, + seq_printf(s, "%pad: %s, virt_state:%#x\n", &dma, xhci_decode_ep_context(str, le32_to_cpu(ep_ctx->ep_info), le32_to_cpu(ep_ctx->ep_info2), le64_to_cpu(ep_ctx->deq), - le32_to_cpu(ep_ctx->tx_info))); + le32_to_cpu(ep_ctx->tx_info)), + dev->eps[ep_index].ep_state); } return 0; @@ -320,16 +309,7 @@ static struct xhci_file_map context_files[] = { static int xhci_context_open(struct inode *inode, struct file *file) { - int i; - struct xhci_file_map *f_map; - const char *file_name = file_dentry(file)->d_iname; - - for (i = 0; i < ARRAY_SIZE(context_files); i++) { - f_map = &context_files[i]; - - if (strcmp(f_map->name, file_name) == 0) - break; - } + const struct xhci_file_map *f_map = debugfs_get_aux(file); return single_open(file, f_map->show, inode->i_private); } @@ -412,7 +392,8 @@ static void xhci_debugfs_create_files(struct xhci_hcd *xhci, int i; for (i = 0; i < nentries; i++) - debugfs_create_file(files[i].name, 0444, parent, data, fops); + debugfs_create_file_aux(files[i].name, 0444, parent, + data, &files[i], fops); } static struct dentry *xhci_debugfs_create_ring_dir(struct xhci_hcd *xhci, diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h index 96eb36a58738..67ecf7320c62 100644 --- a/drivers/usb/host/xhci-ext-caps.h +++ b/drivers/usb/host/xhci-ext-caps.h @@ -42,6 +42,7 @@ #define XHCI_EXT_CAPS_DEBUG 10 /* Vendor caps */ #define XHCI_EXT_CAPS_VENDOR_INTEL 192 +#define XHCI_EXT_CAPS_INTEL_SPR_SHADOW 206 /* USB Legacy Support Capability - section 7.1.1 */ #define XHCI_HC_BIOS_OWNED (1 << 16) #define XHCI_HC_OS_OWNED (1 << 24) @@ -64,6 +65,10 @@ #define XHCI_HLC (1 << 19) #define XHCI_BLC (1 << 20) +/* Intel SPR shadow capability */ +#define XHCI_INTEL_SPR_ESS_PORT_OFFSET 0x8ac4 /* SuperSpeed port control */ +#define XHCI_INTEL_SPR_TUNEN BIT(4) /* Tunnel mode enabled */ + /* command register values to disable interrupts and halt the HC */ /* start/stop HC execution - do not write unless HC is halted*/ #define XHCI_CMD_RUN (1 << 0) diff --git a/drivers/usb/host/xhci-histb.c b/drivers/usb/host/xhci-histb.c index f9a4a4b0eb57..02396c8721dc 100644 --- a/drivers/usb/host/xhci-histb.c +++ b/drivers/usb/host/xhci-histb.c @@ -355,7 +355,7 @@ static int __maybe_unused xhci_histb_resume(struct device *dev) if (!device_may_wakeup(dev)) xhci_histb_host_enable(histb); - return xhci_resume(xhci, PMSG_RESUME); + return xhci_resume(xhci, false, false); } static const struct dev_pm_ops xhci_histb_pm_ops = { @@ -373,7 +373,7 @@ MODULE_DEVICE_TABLE(of, histb_xhci_of_match); static struct platform_driver histb_xhci_driver = { .probe = xhci_histb_probe, - .remove_new = xhci_histb_remove, + .remove = xhci_histb_remove, .driver = { .name = "xhci-histb", .pm = DEV_PM_OPS, diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 61f083de6e19..486347776cb2 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -10,8 +10,9 @@ #include <linux/slab.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/bitfield.h> +#include <linux/pci.h> #include "xhci.h" #include "xhci-trace.h" @@ -752,6 +753,49 @@ static int xhci_exit_test_mode(struct xhci_hcd *xhci) return xhci_reset(xhci, XHCI_RESET_SHORT_USEC); } +/** + * xhci_port_is_tunneled() - Check if USB3 connection is tunneled over USB4 + * @xhci: xhci host controller + * @port: USB3 port to be checked. + * + * Some hosts can detect if a USB3 connection is native USB3 or tunneled over + * USB4. Intel hosts expose this via vendor specific extended capability 206 + * eSS PORT registers TUNEN (tunnel enabled) bit. + * + * A USB3 device must be connected to the port to detect the tunnel. + * + * Return: link tunnel mode enum, USB_LINK_UNKNOWN if host is incapable of + * detecting USB3 over USB4 tunnels. USB_LINK_NATIVE or USB_LINK_TUNNELED + * otherwise. + */ +enum usb_link_tunnel_mode xhci_port_is_tunneled(struct xhci_hcd *xhci, + struct xhci_port *port) +{ + struct usb_hcd *hcd; + void __iomem *base; + u32 offset; + + /* Don't try and probe this capability for non-Intel hosts */ + hcd = xhci_to_hcd(xhci); + if (!dev_is_pci(hcd->self.controller) || + to_pci_dev(hcd->self.controller)->vendor != PCI_VENDOR_ID_INTEL) + return USB_LINK_UNKNOWN; + + base = &xhci->cap_regs->hc_capbase; + offset = xhci_find_next_ext_cap(base, 0, XHCI_EXT_CAPS_INTEL_SPR_SHADOW); + + if (offset && offset <= XHCI_INTEL_SPR_ESS_PORT_OFFSET) { + offset = XHCI_INTEL_SPR_ESS_PORT_OFFSET + port->hcd_portnum * 0x20; + + if (readl(base + offset) & XHCI_INTEL_SPR_TUNEN) + return USB_LINK_TUNNELED; + else + return USB_LINK_NATIVE; + } + + return USB_LINK_UNKNOWN; +} + void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, u32 link_state) { @@ -882,7 +926,7 @@ static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) { xhci->port_status_u0 |= 1 << wIndex; if (xhci->port_status_u0 == all_ports_seen_u0) { - del_timer_sync(&xhci->comp_mode_recovery_timer); + timer_delete_sync(&xhci->comp_mode_recovery_timer); xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, "All USB3 ports have entered U0 already!"); xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, @@ -910,9 +954,9 @@ static int xhci_handle_usb2_port_link_resume(struct xhci_port *port, } /* did port event handler already start resume timing? */ if (!port->resume_timestamp) { - /* If not, maybe we are in a host initated resume? */ + /* If not, maybe we are in a host initiated resume? */ if (test_bit(wIndex, &bus_state->resuming_ports)) { - /* Host initated resume doesn't time the resume + /* Host initiated resume doesn't time the resume * signalling using resume_done[]. * It manually sets RESUME state, sleeps 20ms * and sets U0 state. This should probably be @@ -1834,9 +1878,10 @@ int xhci_bus_resume(struct usb_hcd *hcd) int max_ports, port_index; int sret; u32 next_state; - u32 temp, portsc; + u32 portsc; struct xhci_hub *rhub; struct xhci_port **ports; + bool disabled_irq = false; rhub = xhci_get_rhub(hcd); ports = rhub->ports; @@ -1852,17 +1897,20 @@ int xhci_bus_resume(struct usb_hcd *hcd) return -ESHUTDOWN; } - /* delay the irqs */ - temp = readl(&xhci->op_regs->command); - temp &= ~CMD_EIE; - writel(temp, &xhci->op_regs->command); - /* bus specific resume for ports we suspended at bus_suspend */ - if (hcd->speed >= HCD_USB3) + if (hcd->speed >= HCD_USB3) { next_state = XDEV_U0; - else + } else { next_state = XDEV_RESUME; - + if (bus_state->bus_suspended) { + /* + * prevent port event interrupts from interfering + * with usb2 port resume process + */ + xhci_disable_interrupter(xhci->interrupters[0]); + disabled_irq = true; + } + } port_index = max_ports; while (port_index--) { portsc = readl(ports[port_index]->addr); @@ -1888,7 +1936,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) /* resume already initiated */ break; default: - /* not in a resumeable state, ignore it */ + /* not in a resumable state, ignore it */ clear_bit(port_index, &bus_state->bus_suspended); break; @@ -1930,11 +1978,9 @@ int xhci_bus_resume(struct usb_hcd *hcd) (void) readl(&xhci->op_regs->command); bus_state->next_statechange = jiffies + msecs_to_jiffies(5); - /* re-enable irqs */ - temp = readl(&xhci->op_regs->command); - temp |= CMD_EIE; - writel(temp, &xhci->op_regs->command); - temp = readl(&xhci->op_regs->command); + /* re-enable interrupter */ + if (disabled_irq) + xhci_enable_interrupter(xhci->interrupters[0]); spin_unlock_irqrestore(&xhci->lock, flags); return 0; diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 69dd86669883..d698095fc88d 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -27,14 +27,12 @@ * "All components of all Command and Transfer TRBs shall be initialized to '0'" */ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, - unsigned int cycle_state, unsigned int max_packet, unsigned int num, gfp_t flags) { struct xhci_segment *seg; dma_addr_t dma; - int i; struct device *dev = xhci_to_hcd(xhci)->self.sysdev; seg = kzalloc_node(sizeof(*seg), flags, dev_to_node(dev)); @@ -56,11 +54,6 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, return NULL; } } - /* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */ - if (cycle_state == 0) { - for (i = 0; i < TRBS_PER_SEGMENT; i++) - seg->trbs[i].link.control = cpu_to_le32(TRB_CYCLE); - } seg->num = num; seg->dma = dma; seg->next = NULL; @@ -78,85 +71,104 @@ static void xhci_segment_free(struct xhci_hcd *xhci, struct xhci_segment *seg) kfree(seg); } -static void xhci_free_segments_for_ring(struct xhci_hcd *xhci, - struct xhci_segment *first) +static void xhci_ring_segments_free(struct xhci_hcd *xhci, struct xhci_ring *ring) { - struct xhci_segment *seg; + struct xhci_segment *seg, *next; - seg = first->next; - while (seg && seg != first) { - struct xhci_segment *next = seg->next; + ring->last_seg->next = NULL; + seg = ring->first_seg; + + while (seg) { + next = seg->next; xhci_segment_free(xhci, seg); seg = next; } - xhci_segment_free(xhci, first); } /* - * Make the prev segment point to the next segment. + * Only for transfer and command rings where driver is the producer, not for + * event rings. * - * Change the last TRB in the prev segment to be a Link TRB which points to the + * Change the last TRB in the segment to be a Link TRB which points to the * DMA address of the next segment. The caller needs to set any Link TRB * related flags, such as End TRB, Toggle Cycle, and no snoop. */ -static void xhci_link_segments(struct xhci_segment *prev, - struct xhci_segment *next, - enum xhci_ring_type type, bool chain_links) +static void xhci_set_link_trb(struct xhci_segment *seg, bool chain_links) { + union xhci_trb *trb; u32 val; - if (!prev || !next) + if (!seg || !seg->next) return; - prev->next = next; - if (type != TYPE_EVENT) { - prev->trbs[TRBS_PER_SEGMENT-1].link.segment_ptr = - cpu_to_le64(next->dma); - /* Set the last TRB in the segment to have a TRB type ID of Link TRB */ - val = le32_to_cpu(prev->trbs[TRBS_PER_SEGMENT-1].link.control); - val &= ~TRB_TYPE_BITMASK; - val |= TRB_TYPE(TRB_LINK); - if (chain_links) - val |= TRB_CHAIN; - prev->trbs[TRBS_PER_SEGMENT-1].link.control = cpu_to_le32(val); - } + trb = &seg->trbs[TRBS_PER_SEGMENT - 1]; + + /* Set the last TRB in the segment to have a TRB type ID of Link TRB */ + val = le32_to_cpu(trb->link.control); + val &= ~TRB_TYPE_BITMASK; + val |= TRB_TYPE(TRB_LINK); + if (chain_links) + val |= TRB_CHAIN; + trb->link.control = cpu_to_le32(val); + trb->link.segment_ptr = cpu_to_le64(seg->next->dma); +} + +static void xhci_initialize_ring_segments(struct xhci_hcd *xhci, struct xhci_ring *ring) +{ + struct xhci_segment *seg; + bool chain_links; + + if (ring->type == TYPE_EVENT) + return; + + chain_links = xhci_link_chain_quirk(xhci, ring->type); + xhci_for_each_ring_seg(ring->first_seg, seg) + xhci_set_link_trb(seg, chain_links); + + /* See section 4.9.2.1 and 6.4.4.1 */ + ring->last_seg->trbs[TRBS_PER_SEGMENT - 1].link.control |= cpu_to_le32(LINK_TOGGLE); } /* - * Link the ring to the new segments. + * Link the src ring segments to the dst ring. * Set Toggle Cycle for the new ring if needed. */ -static void xhci_link_rings(struct xhci_hcd *xhci, struct xhci_ring *ring, - struct xhci_segment *first, struct xhci_segment *last, - unsigned int num_segs) +static void xhci_link_rings(struct xhci_hcd *xhci, struct xhci_ring *src, struct xhci_ring *dst) { - struct xhci_segment *next, *seg; + struct xhci_segment *seg; bool chain_links; - if (!ring || !first || !last) + if (!src || !dst) return; - /* Set chain bit for 0.95 hosts, and for isoc rings on AMD 0.96 host */ - chain_links = !!(xhci_link_trb_quirk(xhci) || - (ring->type == TYPE_ISOC && - (xhci->quirks & XHCI_AMD_0x96_HOST))); + /* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */ + if (dst->cycle_state == 0) { + xhci_for_each_ring_seg(src->first_seg, seg) { + for (int i = 0; i < TRBS_PER_SEGMENT; i++) + seg->trbs[i].link.control |= cpu_to_le32(TRB_CYCLE); + } + } - next = ring->enq_seg->next; - xhci_link_segments(ring->enq_seg, first, ring->type, chain_links); - xhci_link_segments(last, next, ring->type, chain_links); - ring->num_segs += num_segs; + src->last_seg->next = dst->enq_seg->next; + dst->enq_seg->next = src->first_seg; + if (dst->type != TYPE_EVENT) { + chain_links = xhci_link_chain_quirk(xhci, dst->type); + xhci_set_link_trb(dst->enq_seg, chain_links); + xhci_set_link_trb(src->last_seg, chain_links); + } + dst->num_segs += src->num_segs; - if (ring->enq_seg == ring->last_seg) { - if (ring->type != TYPE_EVENT) { - ring->last_seg->trbs[TRBS_PER_SEGMENT-1].link.control + if (dst->enq_seg == dst->last_seg) { + if (dst->type != TYPE_EVENT) + dst->last_seg->trbs[TRBS_PER_SEGMENT-1].link.control &= ~cpu_to_le32(LINK_TOGGLE); - last->trbs[TRBS_PER_SEGMENT-1].link.control - |= cpu_to_le32(LINK_TOGGLE); - } - ring->last_seg = last; + + dst->last_seg = src->last_seg; + } else if (dst->type != TYPE_EVENT) { + src->last_seg->trbs[TRBS_PER_SEGMENT-1].link.control &= ~cpu_to_le32(LINK_TOGGLE); } - for (seg = last; seg != ring->last_seg; seg = seg->next) + for (seg = dst->enq_seg; seg != dst->last_seg; seg = seg->next) seg->next->num = seg->num + 1; } @@ -227,7 +239,6 @@ static int xhci_update_stream_segment_mapping( struct radix_tree_root *trb_address_map, struct xhci_ring *ring, struct xhci_segment *first_seg, - struct xhci_segment *last_seg, gfp_t mem_flags) { struct xhci_segment *seg; @@ -237,28 +248,22 @@ static int xhci_update_stream_segment_mapping( if (WARN_ON_ONCE(trb_address_map == NULL)) return 0; - seg = first_seg; - do { + xhci_for_each_ring_seg(first_seg, seg) { ret = xhci_insert_segment_mapping(trb_address_map, ring, seg, mem_flags); if (ret) goto remove_streams; - if (seg == last_seg) - return 0; - seg = seg->next; - } while (seg != first_seg); + } return 0; remove_streams: failed_seg = seg; - seg = first_seg; - do { + xhci_for_each_ring_seg(first_seg, seg) { xhci_remove_segment_mapping(trb_address_map, seg); if (seg == failed_seg) return ret; - seg = seg->next; - } while (seg != first_seg); + } return ret; } @@ -270,17 +275,14 @@ static void xhci_remove_stream_mapping(struct xhci_ring *ring) if (WARN_ON_ONCE(ring->trb_address_map == NULL)) return; - seg = ring->first_seg; - do { + xhci_for_each_ring_seg(ring->first_seg, seg) xhci_remove_segment_mapping(ring->trb_address_map, seg); - seg = seg->next; - } while (seg != ring->first_seg); } static int xhci_update_stream_mapping(struct xhci_ring *ring, gfp_t mem_flags) { return xhci_update_stream_segment_mapping(ring->trb_address_map, ring, - ring->first_seg, ring->last_seg, mem_flags); + ring->first_seg, mem_flags); } /* XXX: Do we need the hcd structure in all these functions? */ @@ -294,14 +296,13 @@ void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring) if (ring->first_seg) { if (ring->type == TYPE_STREAM) xhci_remove_stream_mapping(ring); - xhci_free_segments_for_ring(xhci, ring->first_seg); + xhci_ring_segments_free(xhci, ring); } kfree(ring); } -void xhci_initialize_ring_info(struct xhci_ring *ring, - unsigned int cycle_state) +void xhci_initialize_ring_info(struct xhci_ring *ring) { /* The ring is empty, so the enqueue pointer == dequeue pointer */ ring->enqueue = ring->first_seg->trbs; @@ -315,7 +316,7 @@ void xhci_initialize_ring_info(struct xhci_ring *ring, * New rings are initialized with cycle state equal to 1; if we are * handling ring expansion, set the cycle state equal to the old ring. */ - ring->cycle_state = cycle_state; + ring->cycle_state = 1; /* * Each segment has a link TRB, and leave an extra TRB for SW @@ -326,45 +327,36 @@ void xhci_initialize_ring_info(struct xhci_ring *ring, EXPORT_SYMBOL_GPL(xhci_initialize_ring_info); /* Allocate segments and link them for a ring */ -static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, - struct xhci_segment **first, struct xhci_segment **last, - unsigned int num_segs, unsigned int num, - unsigned int cycle_state, enum xhci_ring_type type, - unsigned int max_packet, gfp_t flags) +static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, struct xhci_ring *ring, gfp_t flags) { struct xhci_segment *prev; - bool chain_links; - - /* Set chain bit for 0.95 hosts, and for isoc rings on AMD 0.96 host */ - chain_links = !!(xhci_link_trb_quirk(xhci) || - (type == TYPE_ISOC && - (xhci->quirks & XHCI_AMD_0x96_HOST))); + unsigned int num = 0; - prev = xhci_segment_alloc(xhci, cycle_state, max_packet, num, flags); + prev = xhci_segment_alloc(xhci, ring->bounce_buf_len, num, flags); if (!prev) return -ENOMEM; num++; - *first = prev; - while (num < num_segs) { + ring->first_seg = prev; + while (num < ring->num_segs) { struct xhci_segment *next; - next = xhci_segment_alloc(xhci, cycle_state, max_packet, num, - flags); + next = xhci_segment_alloc(xhci, ring->bounce_buf_len, num, flags); if (!next) goto free_segments; - xhci_link_segments(prev, next, type, chain_links); + prev->next = next; prev = next; num++; } - xhci_link_segments(prev, *first, type, chain_links); - *last = prev; + ring->last_seg = prev; + ring->last_seg->next = ring->first_seg; return 0; free_segments: - xhci_free_segments_for_ring(xhci, *first); + ring->last_seg = prev; + xhci_ring_segments_free(xhci, ring); return -ENOMEM; } @@ -375,9 +367,8 @@ free_segments: * Set the end flag and the cycle toggle bit on the last segment. * See section 4.9.1 and figures 15 and 16. */ -struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, - unsigned int num_segs, unsigned int cycle_state, - enum xhci_ring_type type, unsigned int max_packet, gfp_t flags) +struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, unsigned int num_segs, + enum xhci_ring_type type, unsigned int max_packet, gfp_t flags) { struct xhci_ring *ring; int ret; @@ -394,19 +385,12 @@ struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, if (num_segs == 0) return ring; - ret = xhci_alloc_segments_for_ring(xhci, &ring->first_seg, - &ring->last_seg, num_segs, 0, cycle_state, type, - max_packet, flags); + ret = xhci_alloc_segments_for_ring(xhci, ring, flags); if (ret) goto fail; - /* Only event ring does not use link TRB */ - if (type != TYPE_EVENT) { - /* See section 4.9.2.1 and 6.4.4.1 */ - ring->last_seg->trbs[TRBS_PER_SEGMENT - 1].link.control |= - cpu_to_le32(LINK_TOGGLE); - } - xhci_initialize_ring_info(ring, cycle_state); + xhci_initialize_ring_segments(xhci, ring); + xhci_initialize_ring_info(ring); trace_xhci_ring_alloc(ring); return ring; @@ -430,25 +414,29 @@ void xhci_free_endpoint_ring(struct xhci_hcd *xhci, int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, unsigned int num_new_segs, gfp_t flags) { - struct xhci_segment *first; - struct xhci_segment *last; - int ret; + struct xhci_ring new_ring; + int ret; - ret = xhci_alloc_segments_for_ring(xhci, &first, &last, - num_new_segs, ring->enq_seg->num + 1, - ring->cycle_state, ring->type, - ring->bounce_buf_len, flags); + if (num_new_segs == 0) + return 0; + + new_ring.num_segs = num_new_segs; + new_ring.bounce_buf_len = ring->bounce_buf_len; + new_ring.type = ring->type; + ret = xhci_alloc_segments_for_ring(xhci, &new_ring, flags); if (ret) return -ENOMEM; + xhci_initialize_ring_segments(xhci, &new_ring); + if (ring->type == TYPE_STREAM) { - ret = xhci_update_stream_segment_mapping(ring->trb_address_map, - ring, first, last, flags); + ret = xhci_update_stream_segment_mapping(ring->trb_address_map, ring, + new_ring.first_seg, flags); if (ret) goto free_segments; } - xhci_link_rings(xhci, ring, first, last, num_new_segs); + xhci_link_rings(xhci, &new_ring, ring); trace_xhci_ring_expansion(ring); xhci_dbg_trace(xhci, trace_xhci_dbg_ring_expansion, "ring expansion succeed, now has %d segments", @@ -457,7 +445,7 @@ int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, return 0; free_segments: - xhci_free_segments_for_ring(xhci, first); + xhci_ring_segments_free(xhci, &new_ring); return ret; } @@ -536,7 +524,7 @@ static void xhci_free_stream_ctx(struct xhci_hcd *xhci, struct xhci_stream_ctx *stream_ctx, dma_addr_t dma) { struct device *dev = xhci_to_hcd(xhci)->self.sysdev; - size_t size = sizeof(struct xhci_stream_ctx) * num_stream_ctxs; + size_t size = array_size(sizeof(struct xhci_stream_ctx), num_stream_ctxs); if (size > MEDIUM_STREAM_ARRAY_SIZE) dma_free_coherent(dev, size, stream_ctx, dma); @@ -561,7 +549,7 @@ static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, gfp_t mem_flags) { struct device *dev = xhci_to_hcd(xhci)->self.sysdev; - size_t size = size_mul(sizeof(struct xhci_stream_ctx), num_stream_ctxs); + size_t size = array_size(sizeof(struct xhci_stream_ctx), num_stream_ctxs); if (size > MEDIUM_STREAM_ARRAY_SIZE) return dma_alloc_coherent(dev, size, dma, mem_flags); @@ -647,8 +635,7 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, for (cur_stream = 1; cur_stream < num_streams; cur_stream++) { stream_info->stream_rings[cur_stream] = - xhci_ring_alloc(xhci, 2, 1, TYPE_STREAM, max_packet, - mem_flags); + xhci_ring_alloc(xhci, 2, TYPE_STREAM, max_packet, mem_flags); cur_ring = stream_info->stream_rings[cur_stream]; if (!cur_ring) goto cleanup_rings; @@ -663,6 +650,8 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, xhci_dbg(xhci, "Setting stream %d ring ptr to 0x%08llx\n", cur_stream, addr); ret = xhci_update_stream_mapping(cur_ring, mem_flags); + + trace_xhci_alloc_stream_info_ctx(stream_info, cur_stream); if (ret) { xhci_ring_free(xhci, cur_ring); stream_info->stream_rings[cur_stream] = NULL; @@ -989,7 +978,7 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, } /* Allocate endpoint 0 ring */ - dev->eps[0].ring = xhci_ring_alloc(xhci, 2, 1, TYPE_CTRL, 0, flags); + dev->eps[0].ring = xhci_ring_alloc(xhci, 2, TYPE_CTRL, 0, flags); if (!dev->eps[0].ring) goto fail; @@ -1466,7 +1455,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci, /* Set up the endpoint ring */ virt_dev->eps[ep_index].new_ring = - xhci_ring_alloc(xhci, 2, 1, ring_type, max_packet, mem_flags); + xhci_ring_alloc(xhci, 2, ring_type, max_packet, mem_flags); if (!virt_dev->eps[ep_index].new_ring) return -ENOMEM; @@ -1638,7 +1627,7 @@ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags) goto fail_sp; xhci->scratchpad->sp_array = dma_alloc_coherent(dev, - size_mul(sizeof(u64), num_sp), + array_size(sizeof(u64), num_sp), &xhci->scratchpad->sp_dma, flags); if (!xhci->scratchpad->sp_array) goto fail_sp2; @@ -1671,7 +1660,7 @@ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags) kfree(xhci->scratchpad->sp_buffers); fail_sp3: - dma_free_coherent(dev, num_sp * sizeof(u64), + dma_free_coherent(dev, array_size(sizeof(u64), num_sp), xhci->scratchpad->sp_array, xhci->scratchpad->sp_dma); @@ -1700,7 +1689,7 @@ static void scratchpad_free(struct xhci_hcd *xhci) xhci->scratchpad->sp_array[i]); } kfree(xhci->scratchpad->sp_buffers); - dma_free_coherent(dev, num_sp * sizeof(u64), + dma_free_coherent(dev, array_size(sizeof(u64), num_sp), xhci->scratchpad->sp_array, xhci->scratchpad->sp_dma); kfree(xhci->scratchpad); @@ -1778,7 +1767,7 @@ static int xhci_alloc_erst(struct xhci_hcd *xhci, struct xhci_segment *seg; struct xhci_erst_entry *entry; - size = size_mul(sizeof(struct xhci_erst_entry), evt_ring->num_segs); + size = array_size(sizeof(struct xhci_erst_entry), evt_ring->num_segs); erst->entries = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev, size, &erst->erst_dma_addr, flags); if (!erst->entries) @@ -1829,7 +1818,7 @@ xhci_free_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir) if (!ir) return; - erst_size = sizeof(struct xhci_erst_entry) * ir->erst.num_entries; + erst_size = array_size(sizeof(struct xhci_erst_entry), ir->erst.num_entries); if (ir->erst.entries) dma_free_coherent(dev, erst_size, ir->erst.entries, @@ -1877,7 +1866,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) cancel_delayed_work_sync(&xhci->cmd_timer); - for (i = 0; i < xhci->max_interrupters; i++) { + for (i = 0; xhci->interrupters && i < xhci->max_interrupters; i++) { if (xhci->interrupters[i]) { xhci_remove_interrupter(xhci, xhci->interrupters[i]); xhci_free_interrupter(xhci, xhci->interrupters[i]); @@ -1950,7 +1939,6 @@ no_bw: kfree(xhci->usb3_rhub.ports); kfree(xhci->hw_ports); kfree(xhci->rh_bw); - kfree(xhci->ext_caps); for (i = 0; i < xhci->num_port_caps; i++) kfree(xhci->port_caps[i].psi); kfree(xhci->port_caps); @@ -1961,12 +1949,10 @@ no_bw: xhci->usb3_rhub.ports = NULL; xhci->hw_ports = NULL; xhci->rh_bw = NULL; - xhci->ext_caps = NULL; xhci->port_caps = NULL; xhci->interrupters = NULL; xhci->page_size = 0; - xhci->page_shift = 0; xhci->usb2_rhub.bus_state.bus_suspended = 0; xhci->usb3_rhub.bus_state.bus_suspended = 0; } @@ -2089,10 +2075,7 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, port_cap->maj_rev = major_revision; port_cap->min_rev = minor_revision; - - /* cache usb2 port capabilities */ - if (major_revision < 0x03 && xhci->num_ext_caps < max_caps) - xhci->ext_caps[xhci->num_ext_caps++] = temp; + port_cap->protocol_caps = temp; if ((xhci->hci_version >= 0x100) && (major_revision != 0x03) && (temp & XHCI_HLC)) { @@ -2212,11 +2195,6 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) XHCI_EXT_CAPS_PROTOCOL); } - xhci->ext_caps = kcalloc_node(cap_count, sizeof(*xhci->ext_caps), - flags, dev_to_node(dev)); - if (!xhci->ext_caps) - return -ENOMEM; - xhci->port_caps = kcalloc_node(cap_count, sizeof(*xhci->port_caps), flags, dev_to_node(dev)); if (!xhci->port_caps) @@ -2269,24 +2247,24 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) } static struct xhci_interrupter * -xhci_alloc_interrupter(struct xhci_hcd *xhci, int segs, gfp_t flags) +xhci_alloc_interrupter(struct xhci_hcd *xhci, unsigned int segs, gfp_t flags) { struct device *dev = xhci_to_hcd(xhci)->self.sysdev; struct xhci_interrupter *ir; - unsigned int num_segs = segs; + unsigned int max_segs; int ret; + if (!segs) + segs = ERST_DEFAULT_SEGS; + + max_segs = BIT(HCS_ERST_MAX(xhci->hcs_params2)); + segs = min(segs, max_segs); + ir = kzalloc_node(sizeof(*ir), flags, dev_to_node(dev)); if (!ir) return NULL; - /* number of ring segments should be greater than 0 */ - if (segs <= 0) - num_segs = min_t(unsigned int, 1 << HCS_ERST_MAX(xhci->hcs_params2), - ERST_MAX_SEGS); - - ir->event_ring = xhci_ring_alloc(xhci, num_segs, 1, TYPE_EVENT, 0, - flags); + ir->event_ring = xhci_ring_alloc(xhci, segs, TYPE_EVENT, 0, flags); if (!ir->event_ring) { xhci_warn(xhci, "Failed to allocate interrupter event ring\n"); kfree(ir); @@ -2335,7 +2313,10 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, erst_base = xhci_read_64(xhci, &ir->ir_set->erst_base); erst_base &= ERST_BASE_RSVDP; erst_base |= ir->erst.erst_dma_addr & ~ERST_BASE_RSVDP; - xhci_write_64(xhci, erst_base, &ir->ir_set->erst_base); + if (xhci->quirks & XHCI_WRITE_64_HI_LO) + hi_lo_writeq(erst_base, &ir->ir_set->erst_base); + else + xhci_write_64(xhci, erst_base, &ir->ir_set->erst_base); /* Set the event ring dequeue address of this interrupter */ xhci_set_hc_event_deq(xhci, ir); @@ -2344,7 +2325,8 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, } struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg) +xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, + u32 imod_interval) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct xhci_interrupter *ir; @@ -2354,7 +2336,7 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg) if (!xhci->interrupters || xhci->max_interrupters <= 1) return NULL; - ir = xhci_alloc_interrupter(xhci, num_seg, GFP_KERNEL); + ir = xhci_alloc_interrupter(xhci, segs, GFP_KERNEL); if (!ir) return NULL; @@ -2377,6 +2359,11 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg) return NULL; } + err = xhci_set_interrupter_moderation(ir, imod_interval); + if (err) + xhci_warn(xhci, "Failed to set interrupter %d moderation to %uns\n", + i, imod_interval); + xhci_dbg(xhci, "Add secondary interrupter %d, max interrupters %d\n", i, xhci->max_interrupters); @@ -2384,6 +2371,22 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg) } EXPORT_SYMBOL_GPL(xhci_create_secondary_interrupter); +static void xhci_hcd_page_size(struct xhci_hcd *xhci) +{ + u32 page_size; + + page_size = readl(&xhci->op_regs->page_size) & XHCI_PAGE_SIZE_MASK; + if (!is_power_of_2(page_size)) { + xhci_warn(xhci, "Invalid page size register = 0x%x\n", page_size); + /* Fallback to 4K page size, since that's common */ + page_size = 1; + } + + xhci->page_size = page_size << 12; + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "HCD page size set to %iK", + xhci->page_size >> 10); +} + int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) { struct xhci_interrupter *ir; @@ -2391,7 +2394,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) dma_addr_t dma; unsigned int val, val2; u64 val_64; - u32 page_size, temp; + u32 temp; int i; INIT_LIST_HEAD(&xhci->cmd_list); @@ -2400,20 +2403,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) INIT_DELAYED_WORK(&xhci->cmd_timer, xhci_handle_command_timeout); init_completion(&xhci->cmd_ring_stop_completion); - page_size = readl(&xhci->op_regs->page_size); - xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "Supported page size register = 0x%x", page_size); - i = ffs(page_size); - if (i < 16) - xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "Supported page size of %iK", (1 << (i+12)) / 1024); - else - xhci_warn(xhci, "WARN: no supported page size\n"); - /* Use 4K pages, since that's common and the minimum the HC supports */ - xhci->page_shift = 12; - xhci->page_size = 1 << xhci->page_shift; - xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "HCD page size set to %iK", xhci->page_size / 1024); + xhci_hcd_page_size(xhci); /* * Program the Number of Device Slots Enabled field in the CONFIG @@ -2449,7 +2439,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) * and our use of dma addresses in the trb_address_map radix tree needs * TRB_SEGMENT_SIZE alignment, so we pick the greater alignment need. */ - if (xhci->quirks & XHCI_ZHAOXIN_TRB_FETCH) + if (xhci->quirks & XHCI_TRB_OVERFETCH) + /* Buggy HC prefetches beyond segment bounds - allocate dummy space at the end */ xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, TRB_SEGMENT_SIZE * 2, TRB_SEGMENT_SIZE * 2, xhci->page_size * 2); else @@ -2479,7 +2470,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) goto fail; /* Set up the command ring to have one segments for now. */ - xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, 0, flags); + xhci->cmd_ring = xhci_ring_alloc(xhci, 1, TYPE_COMMAND, 0, flags); if (!xhci->cmd_ring) goto fail; xhci_dbg_trace(xhci, trace_xhci_dbg_init, @@ -2524,11 +2515,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) ir->isoc_bei_interval = AVOID_BEI_INTERVAL_MAX; - /* - * XXX: Might need to set the Interrupter Moderation Register to - * something other than the default (~1ms minimum between interrupts). - * See section 5.5.1.2. - */ for (i = 0; i < MAX_HC_SLOTS; i++) xhci->devs[i] = NULL; diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 3252e3d2d79c..208558cf822d 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -746,10 +746,10 @@ static int __maybe_unused xhci_mtk_suspend(struct device *dev) xhci_dbg(xhci, "%s: stop port polling\n", __func__); clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); if (shared_hcd) { clear_bit(HCD_FLAG_POLL_RH, &shared_hcd->flags); - del_timer_sync(&shared_hcd->rh_timer); + timer_delete_sync(&shared_hcd->rh_timer); } ret = xhci_mtk_host_disable(mtk); @@ -853,7 +853,7 @@ MODULE_DEVICE_TABLE(of, mtk_xhci_of_match); static struct platform_driver mtk_xhci_driver = { .probe = xhci_mtk_probe, - .remove_new = xhci_mtk_remove, + .remove = xhci_mtk_remove, .driver = { .name = "xhci-mtk", .pm = DEV_PM_OPS, diff --git a/drivers/usb/host/xhci-mvebu.c b/drivers/usb/host/xhci-mvebu.c index 87f1597a0e5a..257e4d79971f 100644 --- a/drivers/usb/host/xhci-mvebu.c +++ b/drivers/usb/host/xhci-mvebu.c @@ -73,13 +73,3 @@ int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd) return 0; } - -int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd) -{ - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - - /* Without reset on resume, the HC won't work at all */ - xhci->quirks |= XHCI_RESET_ON_RESUME; - - return 0; -} diff --git a/drivers/usb/host/xhci-mvebu.h b/drivers/usb/host/xhci-mvebu.h index 3be021793cc8..9d26e22c4842 100644 --- a/drivers/usb/host/xhci-mvebu.h +++ b/drivers/usb/host/xhci-mvebu.h @@ -12,16 +12,10 @@ struct usb_hcd; #if IS_ENABLED(CONFIG_USB_XHCI_MVEBU) int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd); -int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd); #else static inline int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd) { return 0; } - -static inline int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd) -{ - return 0; -} #endif #endif /* __LINUX_XHCI_MVEBU_H */ diff --git a/drivers/usb/host/xhci-pci-renesas.c b/drivers/usb/host/xhci-pci-renesas.c index 93f8b355bc70..620f8f0febb8 100644 --- a/drivers/usb/host/xhci-pci-renesas.c +++ b/drivers/usb/host/xhci-pci-renesas.c @@ -6,7 +6,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/slab.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "xhci.h" #include "xhci-trace.h" @@ -50,6 +50,8 @@ #define RENESAS_RETRY 10000 #define RENESAS_DELAY 10 +#define RENESAS_FW_NAME "renesas_usb_fw.mem" + static int renesas_fw_download_image(struct pci_dev *dev, const u32 *fw, size_t step, bool rom) { @@ -573,12 +575,10 @@ exit: return err; } -int renesas_xhci_check_request_fw(struct pci_dev *pdev, - const struct pci_device_id *id) +static int renesas_xhci_check_request_fw(struct pci_dev *pdev, + const struct pci_device_id *id) { - struct xhci_driver_data *driver_data = - (struct xhci_driver_data *)id->driver_data; - const char *fw_name = driver_data->firmware; + const char fw_name[] = RENESAS_FW_NAME; const struct firmware *fw; bool has_rom; int err; @@ -625,6 +625,41 @@ exit: release_firmware(fw); return err; } -EXPORT_SYMBOL_GPL(renesas_xhci_check_request_fw); +static int +xhci_pci_renesas_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + int retval; + + retval = renesas_xhci_check_request_fw(dev, id); + if (retval) + return retval; + + return xhci_pci_common_probe(dev, id); +} + +static const struct pci_device_id pci_ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0014) }, + { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0015) }, + { /* end: all zeroes */ } +}; +MODULE_DEVICE_TABLE(pci, pci_ids); + +static struct pci_driver xhci_renesas_pci_driver = { + .name = "xhci-pci-renesas", + .id_table = pci_ids, + + .probe = xhci_pci_renesas_probe, + .remove = xhci_pci_remove, + + .shutdown = usb_hcd_pci_shutdown, + .driver = { + .pm = pm_ptr(&usb_hcd_pci_pm_ops), + }, +}; +module_pci_driver(xhci_renesas_pci_driver); + +MODULE_DESCRIPTION("Renesas xHCI PCI Host Controller Driver"); +MODULE_FIRMWARE(RENESAS_FW_NAME); +MODULE_IMPORT_NS("xhci"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 93b697648018..0c481cbc8f08 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -28,25 +28,40 @@ #define SPARSE_CNTL_ENABLE 0xC12C /* Device for a quirk */ -#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 -#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000 +#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 +#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009 0x1009 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 0x1100 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400 0x1400 -#define PCI_VENDOR_ID_ETRON 0x1b6f -#define PCI_DEVICE_ID_EJ168 0x7023 +#define PCI_VENDOR_ID_ETRON 0x1b6f +#define PCI_DEVICE_ID_ETRON_EJ168 0x7023 +#define PCI_DEVICE_ID_ETRON_EJ188 0x7052 -#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 -#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 +#define PCI_DEVICE_ID_VIA_VL805 0x3483 + +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 #define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI 0x9cb1 #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8 #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI 0x1aa8 -#define PCI_DEVICE_ID_INTEL_APL_XHCI 0x5aa8 -#define PCI_DEVICE_ID_INTEL_DNV_XHCI 0x19d0 +#define PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI 0x5aa8 +#define PCI_DEVICE_ID_INTEL_DENVERTON_XHCI 0x19d0 +#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13 +#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13 +#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_PCH_XHCI 0xa0ed +#define PCI_DEVICE_ID_INTEL_COMET_LAKE_XHCI 0xa3af +#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed +#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI 0x54ed + +#define PCI_VENDOR_ID_PHYTIUM 0x1db7 +#define PCI_DEVICE_ID_PHYTIUM_XHCI 0xdc27 + +/* Thunderbolt */ +#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI 0x15b5 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_XHCI 0x15b6 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_XHCI 0x15c1 @@ -55,12 +70,6 @@ #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI 0x15e9 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI 0x15ec #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI 0x15f0 -#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13 -#define PCI_DEVICE_ID_INTEL_CML_XHCI 0xa3af -#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13 -#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138 -#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed -#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI 0x54ed #define PCI_DEVICE_ID_AMD_RENOIR_XHCI 0x1639 #define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9 @@ -72,6 +81,7 @@ #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI 0x1142 #define PCI_DEVICE_ID_ASMEDIA_1142_XHCI 0x1242 #define PCI_DEVICE_ID_ASMEDIA_2142_XHCI 0x2142 +#define PCI_DEVICE_ID_ASMEDIA_3042_XHCI 0x3042 #define PCI_DEVICE_ID_ASMEDIA_3242_XHCI 0x3242 static const char hcd_name[] = "xhci_hcd"; @@ -89,6 +99,10 @@ static const struct xhci_driver_overrides xhci_pci_overrides __initconst = { .update_hub_device = xhci_pci_update_hub_device, }; +/* + * Primary Legacy and MSI IRQ are synced in suspend_common(). + * All MSI-X IRQs and secondary MSI IRQs should be synced here. + */ static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) { struct usb_hcd *hcd = xhci_to_hcd(xhci); @@ -101,13 +115,12 @@ static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) } } -/* Free any IRQs and disable MSI-X */ +/* Legacy IRQ is freed by usb_remove_hcd() or usb_hcd_pci_shutdown() */ static void xhci_cleanup_msix(struct xhci_hcd *xhci) { struct usb_hcd *hcd = xhci_to_hcd(xhci); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); - /* return if using legacy interrupt */ if (hcd->irq > 0) return; @@ -136,14 +149,11 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) hcd->irq = 0; /* - * calculate number of MSI-X vectors supported. - * - HCS_MAX_INTRS: the max number of interrupts the host can handle, - * with max number of interrupters based on the xhci HCSPARAMS1. - * - num_online_cpus: maximum MSI-X vectors per CPUs core. - * Add additional 1 vector to ensure always available interrupt. + * Calculate number of MSI/MSI-X vectors supported. + * - max_interrupters: the max number of interrupts requested, capped to xhci HCSPARAMS1. + * - num_online_cpus: one vector per CPUs core, with at least one overall. */ - xhci->nvecs = min(num_online_cpus() + 1, - HCS_MAX_INTRS(xhci->hcs_params1)); + xhci->nvecs = min(num_online_cpus() + 1, xhci->max_interrupters); /* TODO: Check with MSI Soc for sysdev */ xhci->nvecs = pci_alloc_irq_vectors(pdev, 1, xhci->nvecs, @@ -231,15 +241,6 @@ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev) static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) { struct pci_dev *pdev = to_pci_dev(dev); - struct xhci_driver_data *driver_data; - const struct pci_device_id *id; - - id = pci_match_id(to_pci_driver(pdev->dev.driver)->id_table, pdev); - - if (id && id->driver_data) { - driver_data = (struct xhci_driver_data *)id->driver_data; - xhci->quirks |= driver_data->quirks; - } /* Look for vendor-specific quirks */ if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC && @@ -270,17 +271,12 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) "QUIRK: Fresco Logic revision %u " "has broken MSI implementation", pdev->revision); - xhci->quirks |= XHCI_TRUST_TX_LENGTH; } if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC && pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009) xhci->quirks |= XHCI_BROKEN_STREAMS; - if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC && - pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100) - xhci->quirks |= XHCI_TRUST_TX_LENGTH; - if (pdev->vendor == PCI_VENDOR_ID_NEC) xhci->quirks |= XHCI_NEC_HOST; @@ -307,11 +303,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_RESET_ON_RESUME; } - if (pdev->vendor == PCI_VENDOR_ID_AMD) { - xhci->quirks |= XHCI_TRUST_TX_LENGTH; - if (pdev->device == 0x43f7) - xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; - } + if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43f7) + xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; if ((pdev->vendor == PCI_VENDOR_ID_AMD) && ((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) || @@ -356,9 +349,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_CML_XHCI)) { + pdev->device == PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_DENVERTON_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_COMET_LAKE_XHCI)) { xhci->quirks |= XHCI_PME_STUCK_QUIRK; } if (pdev->vendor == PCI_VENDOR_ID_INTEL && @@ -367,18 +360,19 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->vendor == PCI_VENDOR_ID_INTEL && (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI)) + pdev->device == PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI)) xhci->quirks |= XHCI_INTEL_USB_ROLE_SW; if (pdev->vendor == PCI_VENDOR_ID_INTEL && (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI)) + pdev->device == PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_DENVERTON_XHCI)) xhci->quirks |= XHCI_MISSING_CAS; if (pdev->vendor == PCI_VENDOR_ID_INTEL && - (pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI || + (pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_PCH_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI)) xhci->quirks |= XHCI_RESET_TO_DEFAULT; @@ -397,14 +391,16 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; if (pdev->vendor == PCI_VENDOR_ID_ETRON && - pdev->device == PCI_DEVICE_ID_EJ168) { + (pdev->device == PCI_DEVICE_ID_ETRON_EJ168 || + pdev->device == PCI_DEVICE_ID_ETRON_EJ188)) { + xhci->quirks |= XHCI_ETRON_HOST; xhci->quirks |= XHCI_RESET_ON_RESUME; - xhci->quirks |= XHCI_TRUST_TX_LENGTH; xhci->quirks |= XHCI_BROKEN_STREAMS; + xhci->quirks |= XHCI_NO_SOFT_RETRY; } + if (pdev->vendor == PCI_VENDOR_ID_RENESAS && pdev->device == 0x0014) { - xhci->quirks |= XHCI_TRUST_TX_LENGTH; xhci->quirks |= XHCI_ZERO_64B_REGS; } if (pdev->vendor == PCI_VENDOR_ID_RENESAS && @@ -415,13 +411,19 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->vendor == PCI_VENDOR_ID_VIA) xhci->quirks |= XHCI_RESET_ON_RESUME; + if (pdev->vendor == PCI_VENDOR_ID_PHYTIUM && + pdev->device == PCI_DEVICE_ID_PHYTIUM_XHCI) + xhci->quirks |= XHCI_RESET_ON_RESUME; + /* See https://bugzilla.kernel.org/show_bug.cgi?id=79511 */ if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3432) xhci->quirks |= XHCI_BROKEN_STREAMS; - if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) + if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == PCI_DEVICE_ID_VIA_VL805) { xhci->quirks |= XHCI_LPM_SUPPORT; + xhci->quirks |= XHCI_TRB_OVERFETCH; + } if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI) { @@ -434,7 +436,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) } if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI) { - xhci->quirks |= XHCI_TRUST_TX_LENGTH; xhci->quirks |= XHCI_NO_64BIT_SUPPORT; } if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && @@ -447,6 +448,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI) xhci->quirks |= XHCI_ASMEDIA_MODIFY_FLOWCONTROL; + if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && + pdev->device == PCI_DEVICE_ID_ASMEDIA_3042_XHCI) + xhci->quirks |= XHCI_RESET_ON_RESUME; + if (pdev->vendor == PCI_VENDOR_ID_TI && pdev->device == 0x8241) xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_7; @@ -466,13 +471,17 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->device == 0x9202) { xhci->quirks |= XHCI_RESET_ON_RESUME; - xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + xhci->quirks |= XHCI_TRB_OVERFETCH; } if (pdev->device == 0x9203) - xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + xhci->quirks |= XHCI_TRB_OVERFETCH; } + if (pdev->vendor == PCI_VENDOR_ID_CDNS && + pdev->device == PCI_DEVICE_ID_CDNS_USBSSP) + xhci->quirks |= XHCI_CDNS_SCTX_QUIRK; + /* xHC spec requires PCI devices to support D3hot and D3cold */ if (xhci->hci_version >= 0x120) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; @@ -534,10 +543,9 @@ static int xhci_pci_setup(struct usb_hcd *hcd) struct xhci_hcd *xhci; struct pci_dev *pdev = to_pci_dev(hcd->self.controller); int retval; + u8 sbrn; xhci = hcd_to_xhci(hcd); - if (!xhci->sbrn) - pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &xhci->sbrn); /* imod_interval is the interrupt moderation value in nanoseconds. */ xhci->imod_interval = 40000; @@ -552,7 +560,8 @@ static int xhci_pci_setup(struct usb_hcd *hcd) if (xhci->quirks & XHCI_PME_STUCK_QUIRK) xhci_pme_acpi_rtd3_enable(pdev); - xhci_dbg(xhci, "Got SBRN %u\n", (unsigned int) xhci->sbrn); + pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &sbrn); + xhci_dbg(xhci, "Got SBRN %u\n", (unsigned int)sbrn); /* Find any debug ports */ return xhci_pci_reinit(xhci, pdev); @@ -572,21 +581,13 @@ static int xhci_pci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hd * We need to register our own PCI probe function (instead of the USB core's * function) in order to create a second roothub under xHCI. */ -static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) +int xhci_pci_common_probe(struct pci_dev *dev, const struct pci_device_id *id) { int retval; struct xhci_hcd *xhci; struct usb_hcd *hcd; - struct xhci_driver_data *driver_data; struct reset_control *reset; - driver_data = (struct xhci_driver_data *)id->driver_data; - if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) { - retval = renesas_xhci_check_request_fw(dev, id); - if (retval) - return retval; - } - reset = devm_reset_control_get_optional_exclusive(&dev->dev, NULL); if (IS_ERR(reset)) return PTR_ERR(reset); @@ -635,12 +636,15 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) pm_runtime_put_noidle(&dev->dev); if (pci_choose_state(dev, PMSG_SUSPEND) == PCI_D0) - pm_runtime_forbid(&dev->dev); + pm_runtime_get(&dev->dev); else if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) pm_runtime_allow(&dev->dev); dma_set_max_seg_size(&dev->dev, UINT_MAX); + if (device_property_read_bool(&dev->dev, "ti,pwron-active-high")) + pci_clear_and_set_config_dword(dev, 0xE0, 0, 1 << 22); + return 0; put_usb3_hcd: @@ -651,16 +655,37 @@ put_runtime_pm: pm_runtime_put_noidle(&dev->dev); return retval; } +EXPORT_SYMBOL_NS_GPL(xhci_pci_common_probe, "xhci"); + +/* handled by xhci-pci-renesas if enabled */ +static const struct pci_device_id pci_ids_renesas[] = { + { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0014) }, + { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0015) }, + { /* end: all zeroes */ } +}; + +static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + if (IS_ENABLED(CONFIG_USB_XHCI_PCI_RENESAS) && + pci_match_id(pci_ids_renesas, dev)) + return -ENODEV; + + return xhci_pci_common_probe(dev, id); +} -static void xhci_pci_remove(struct pci_dev *dev) +void xhci_pci_remove(struct pci_dev *dev) { struct xhci_hcd *xhci; + bool set_power_d3; xhci = hcd_to_xhci(pci_get_drvdata(dev)); + set_power_d3 = xhci->quirks & XHCI_SPURIOUS_WAKEUP; xhci->xhc_state |= XHCI_STATE_REMOVING; - if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) + if (pci_choose_state(dev, PMSG_SUSPEND) == PCI_D0) + pm_runtime_put(&dev->dev); + else if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) pm_runtime_forbid(&dev->dev); if (xhci->shared_hcd) { @@ -669,12 +694,13 @@ static void xhci_pci_remove(struct pci_dev *dev) xhci->shared_hcd = NULL; } + usb_hcd_pci_remove(dev); + /* Workaround for spurious wakeups at shutdown with HSW */ - if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) + if (set_power_d3) pci_set_power_state(dev, PCI_D3hot); - - usb_hcd_pci_remove(dev); } +EXPORT_SYMBOL_NS_GPL(xhci_pci_remove, "xhci"); /* * In some Intel xHCI controllers, in order to get D3 working, @@ -781,9 +807,10 @@ static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) static int xhci_pci_resume(struct usb_hcd *hcd, pm_message_t msg) { - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - struct pci_dev *pdev = to_pci_dev(hcd->self.controller); - int retval = 0; + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + bool power_lost = msg.event == PM_EVENT_RESTORE; + bool is_auto_resume = msg.event == PM_EVENT_AUTO_RESUME; reset_control_reset(xhci->reset); @@ -814,8 +841,7 @@ static int xhci_pci_resume(struct usb_hcd *hcd, pm_message_t msg) if (xhci->quirks & XHCI_PME_STUCK_QUIRK) xhci_pme_quirk(hcd); - retval = xhci_resume(xhci, msg); - return retval; + return xhci_resume(xhci, power_lost, is_auto_resume); } static int xhci_pci_poweroff_late(struct usb_hcd *hcd, bool do_wakeup) @@ -882,19 +908,8 @@ static void xhci_pci_shutdown(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -static const struct xhci_driver_data reneses_data = { - .quirks = XHCI_RENESAS_FW_QUIRK, - .firmware = "renesas_usb_fw.mem", -}; - /* PCI driver selection metadata; PCI hotplugging uses this */ static const struct pci_device_id pci_ids[] = { - { PCI_DEVICE(0x1912, 0x0014), - .driver_data = (unsigned long)&reneses_data, - }, - { PCI_DEVICE(0x1912, 0x0015), - .driver_data = (unsigned long)&reneses_data, - }, /* handle any USB 3.0 xHCI controller */ { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0), }, @@ -902,14 +917,6 @@ static const struct pci_device_id pci_ids[] = { }; MODULE_DEVICE_TABLE(pci, pci_ids); -/* - * Without CONFIG_USB_XHCI_PCI_RENESAS renesas_xhci_check_request_fw() won't - * load firmware, so don't encumber the xhci-pci driver with it. - */ -#if IS_ENABLED(CONFIG_USB_XHCI_PCI_RENESAS) -MODULE_FIRMWARE("renesas_usb_fw.mem"); -#endif - /* pci driver glue; this is a "new style" PCI driver module */ static struct pci_driver xhci_pci_driver = { .name = hcd_name, diff --git a/drivers/usb/host/xhci-pci.h b/drivers/usb/host/xhci-pci.h index cb9a8f331a44..e87c7d9d76b8 100644 --- a/drivers/usb/host/xhci-pci.h +++ b/drivers/usb/host/xhci-pci.h @@ -4,22 +4,7 @@ #ifndef XHCI_PCI_H #define XHCI_PCI_H -#if IS_ENABLED(CONFIG_USB_XHCI_PCI_RENESAS) -int renesas_xhci_check_request_fw(struct pci_dev *dev, - const struct pci_device_id *id); - -#else -static int renesas_xhci_check_request_fw(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return 0; -} - -#endif - -struct xhci_driver_data { - u64 quirks; - const char *firmware; -}; +int xhci_pci_common_probe(struct pci_dev *dev, const struct pci_device_id *id); +void xhci_pci_remove(struct pci_dev *dev); #endif diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 3d071b875308..3155e3a842da 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -106,7 +106,7 @@ static const struct xhci_plat_priv xhci_plat_marvell_armada = { }; static const struct xhci_plat_priv xhci_plat_marvell_armada3700 = { - .init_quirk = xhci_mvebu_a3700_init_quirk, + .quirks = XHCI_RESET_ON_RESUME, }; static const struct xhci_plat_priv xhci_plat_brcm = { @@ -256,6 +256,15 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s if (device_property_read_bool(tmpdev, "xhci-sg-trb-cache-size-quirk")) xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK; + if (device_property_read_bool(tmpdev, "write-64-hi-lo-quirk")) + xhci->quirks |= XHCI_WRITE_64_HI_LO; + + if (device_property_read_bool(tmpdev, "xhci-missing-cas-quirk")) + xhci->quirks |= XHCI_MISSING_CAS; + + if (device_property_read_bool(tmpdev, "xhci-skip-phy-init-quirk")) + xhci->quirks |= XHCI_SKIP_PHY_INIT; + device_property_read_u32(tmpdev, "imod-interval-ns", &xhci->imod_interval); } @@ -281,7 +290,8 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node); - if (priv && (priv->quirks & XHCI_SKIP_PHY_INIT)) + if ((priv && (priv->quirks & XHCI_SKIP_PHY_INIT)) || + (xhci->quirks & XHCI_SKIP_PHY_INIT)) hcd->skip_phy_initialization = 1; if (priv && (priv->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK)) @@ -320,6 +330,8 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s usb3_hcd->can_do_streams = 1; if (xhci->shared_hcd) { + xhci->shared_hcd->rsrc_start = hcd->rsrc_start; + xhci->shared_hcd->rsrc_len = hcd->rsrc_len; ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); if (ret) goto put_usb3_hcd; @@ -467,9 +479,10 @@ static int xhci_plat_suspend(struct device *dev) return 0; } -static int xhci_plat_resume_common(struct device *dev, struct pm_message pmsg) +static int xhci_plat_resume_common(struct device *dev, bool power_lost) { struct usb_hcd *hcd = dev_get_drvdata(dev); + struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); struct xhci_hcd *xhci = hcd_to_xhci(hcd); int ret; @@ -489,7 +502,7 @@ static int xhci_plat_resume_common(struct device *dev, struct pm_message pmsg) if (ret) goto disable_clks; - ret = xhci_resume(xhci, pmsg); + ret = xhci_resume(xhci, power_lost || priv->power_lost, false); if (ret) goto disable_clks; @@ -510,12 +523,12 @@ disable_clks: static int xhci_plat_resume(struct device *dev) { - return xhci_plat_resume_common(dev, PMSG_RESUME); + return xhci_plat_resume_common(dev, false); } static int xhci_plat_restore(struct device *dev) { - return xhci_plat_resume_common(dev, PMSG_RESTORE); + return xhci_plat_resume_common(dev, true); } static int __maybe_unused xhci_plat_runtime_suspend(struct device *dev) @@ -536,7 +549,7 @@ static int __maybe_unused xhci_plat_runtime_resume(struct device *dev) struct usb_hcd *hcd = dev_get_drvdata(dev); struct xhci_hcd *xhci = hcd_to_xhci(hcd); - return xhci_resume(xhci, PMSG_AUTO_RESUME); + return xhci_resume(xhci, false, true); } const struct dev_pm_ops xhci_plat_pm_ops = { @@ -557,6 +570,7 @@ EXPORT_SYMBOL_GPL(xhci_plat_pm_ops); static const struct acpi_device_id usb_xhci_acpi_match[] = { /* XHCI-compliant USB Controller */ { "PNP0D10", }, + { "PNP0D15", }, { } }; MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match); @@ -564,7 +578,7 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match); static struct platform_driver usb_generic_xhci_driver = { .probe = xhci_generic_plat_probe, - .remove_new = xhci_plat_remove, + .remove = xhci_plat_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "xhci-hcd", diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h index 2d15386f2c50..fe4f95e690fa 100644 --- a/drivers/usb/host/xhci-plat.h +++ b/drivers/usb/host/xhci-plat.h @@ -8,11 +8,14 @@ #ifndef _XHCI_PLAT_H #define _XHCI_PLAT_H -#include "xhci.h" /* for hcd_to_xhci() */ +struct device; +struct platform_device; +struct usb_hcd; struct xhci_plat_priv { const char *firmware_name; unsigned long long quirks; + bool power_lost; void (*plat_start)(struct usb_hcd *); int (*init_quirk)(struct usb_hcd *); int (*suspend_quirk)(struct usb_hcd *); diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index ab9c5969e462..1cc082a3b793 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -214,8 +214,7 @@ static int xhci_rcar_resume_quirk(struct usb_hcd *hcd) */ #define SET_XHCI_PLAT_PRIV_FOR_RCAR(firmware) \ .firmware_name = firmware, \ - .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH | \ - XHCI_SLOW_SUSPEND, \ + .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_SLOW_SUSPEND, \ .init_quirk = xhci_rcar_init_quirk, \ .plat_start = xhci_rcar_start, \ .resume_quirk = xhci_rcar_resume_quirk, @@ -229,8 +228,7 @@ static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = { }; static const struct xhci_plat_priv xhci_plat_renesas_rzv2m = { - .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH | - XHCI_SLOW_SUSPEND, + .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_SLOW_SUSPEND, .init_quirk = xhci_rzv2m_init_quirk, .plat_start = xhci_rzv2m_start, }; @@ -276,7 +274,7 @@ static int xhci_renesas_probe(struct platform_device *pdev) static struct platform_driver usb_xhci_renesas_driver = { .probe = xhci_renesas_probe, - .remove_new = xhci_plat_remove, + .remove = xhci_plat_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "xhci-renesas-hcd", diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 575f0fd9c9f1..423bf3649570 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -52,8 +52,10 @@ * endpoint rings; it generates events on the event ring for these. */ +#include <linux/jiffies.h> #include <linux/scatterlist.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/dma-mapping.h> #include "xhci.h" #include "xhci-trace.h" @@ -145,10 +147,8 @@ static void trb_to_noop(union xhci_trb *trb, u32 noop_type) * TRB is in a new segment. This does not skip over link TRBs, and it does not * effect the ring dequeue or enqueue pointers. */ -static void next_trb(struct xhci_hcd *xhci, - struct xhci_ring *ring, - struct xhci_segment **seg, - union xhci_trb **trb) +static void next_trb(struct xhci_segment **seg, + union xhci_trb **trb) { if (trb_is_link(*trb) || last_trb_on_seg(*seg, *trb)) { *seg = (*seg)->next; @@ -169,13 +169,16 @@ void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) if (ring->type == TYPE_EVENT) { if (!last_trb_on_seg(ring->deq_seg, ring->dequeue)) { ring->dequeue++; - goto out; + return; } if (last_trb_on_ring(ring, ring->deq_seg, ring->dequeue)) ring->cycle_state ^= 1; ring->deq_seg = ring->deq_seg->next; ring->dequeue = ring->deq_seg->trbs; - goto out; + + trace_xhci_inc_deq(ring); + + return; } /* All other rings have link trbs */ @@ -190,18 +193,61 @@ void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) ring->deq_seg = ring->deq_seg->next; ring->dequeue = ring->deq_seg->trbs; + trace_xhci_inc_deq(ring); + if (link_trb_count++ > ring->num_segs) { xhci_warn(xhci, "Ring is an endless link TRB loop\n"); break; } } -out: - trace_xhci_inc_deq(ring); - return; } /* + * If enqueue points at a link TRB, follow links until an ordinary TRB is reached. + * Toggle the cycle bit of passed link TRBs and optionally chain them. + */ +static void inc_enq_past_link(struct xhci_hcd *xhci, struct xhci_ring *ring, u32 chain) +{ + unsigned int link_trb_count = 0; + + while (trb_is_link(ring->enqueue)) { + + /* + * Section 6.4.4.1 of the 0.95 spec says link TRBs cannot have the chain bit + * set, but other sections talk about dealing with the chain bit set. This was + * fixed in the 0.96 specification errata, but we have to assume that all 0.95 + * xHCI hardware can't handle the chain bit being cleared on a link TRB. + * + * On 0.95 and some 0.96 HCs the chain bit is set once at segment initalization + * and never changed here. On all others, modify it as requested by the caller. + */ + if (!xhci_link_chain_quirk(xhci, ring->type)) { + ring->enqueue->link.control &= cpu_to_le32(~TRB_CHAIN); + ring->enqueue->link.control |= cpu_to_le32(chain); + } + + /* Give this link TRB to the hardware */ + wmb(); + ring->enqueue->link.control ^= cpu_to_le32(TRB_CYCLE); + + /* Toggle the cycle bit after the last ring segment. */ + if (link_trb_toggles_cycle(ring->enqueue)) + ring->cycle_state ^= 1; + + ring->enq_seg = ring->enq_seg->next; + ring->enqueue = ring->enq_seg->trbs; + + trace_xhci_inc_enq(ring); + + if (link_trb_count++ > ring->num_segs) { + xhci_warn(xhci, "Link TRB loop at enqueue\n"); + break; + } + } +} + +/* * See Cycle bit rules. SW is the consumer for the event ring only. * * If we've just enqueued a TRB that is in the middle of a TD (meaning the @@ -209,11 +255,6 @@ out: * If we've enqueued the last TRB in a TD, make sure the following link TRBs * have their chain bit cleared (so that each Link TRB is a separate TD). * - * Section 6.4.4.1 of the 0.95 spec says link TRBs cannot have the chain bit - * set, but other sections talk about dealing with the chain bit set. This was - * fixed in the 0.96 specification errata, but we have to assume that all 0.95 - * xHCI hardware can't handle the chain bit being cleared on a link TRB. - * * @more_trbs_coming: Will you enqueue more TRBs before calling * prepare_transfer()? */ @@ -221,8 +262,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool more_trbs_coming) { u32 chain; - union xhci_trb *next; - unsigned int link_trb_count = 0; chain = le32_to_cpu(ring->enqueue->generic.field[3]) & TRB_CHAIN; @@ -231,50 +270,67 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, return; } - next = ++(ring->enqueue); - - /* Update the dequeue pointer further if that was a link TRB */ - while (trb_is_link(next)) { + ring->enqueue++; - /* - * If the caller doesn't plan on enqueueing more TDs before - * ringing the doorbell, then we don't want to give the link TRB - * to the hardware just yet. We'll give the link TRB back in - * prepare_ring() just before we enqueue the TD at the top of - * the ring. - */ - if (!chain && !more_trbs_coming) - break; + /* + * If we are in the middle of a TD or the caller plans to enqueue more + * TDs as one transfer (eg. control), traverse any link TRBs right now. + * Otherwise, enqueue can stay on a link until the next prepare_ring(). + * This avoids enqueue entering deq_seg and simplifies ring expansion. + */ + if (trb_is_link(ring->enqueue) && (chain || more_trbs_coming)) + inc_enq_past_link(xhci, ring, chain); +} - /* If we're not dealing with 0.95 hardware or isoc rings on - * AMD 0.96 host, carry over the chain bit of the previous TRB - * (which may mean the chain bit is cleared). - */ - if (!(ring->type == TYPE_ISOC && - (xhci->quirks & XHCI_AMD_0x96_HOST)) && - !xhci_link_trb_quirk(xhci)) { - next->link.control &= cpu_to_le32(~TRB_CHAIN); - next->link.control |= cpu_to_le32(chain); - } - /* Give this link TRB to the hardware */ - wmb(); - next->link.control ^= cpu_to_le32(TRB_CYCLE); +/* + * If the suspect DMA address is a TRB in this TD, this function returns that + * TRB's segment. Otherwise it returns 0. + */ +static struct xhci_segment *trb_in_td(struct xhci_td *td, dma_addr_t suspect_dma) +{ + dma_addr_t start_dma; + dma_addr_t end_seg_dma; + dma_addr_t end_trb_dma; + struct xhci_segment *cur_seg; - /* Toggle the cycle bit after the last ring segment. */ - if (link_trb_toggles_cycle(next)) - ring->cycle_state ^= 1; + start_dma = xhci_trb_virt_to_dma(td->start_seg, td->start_trb); + cur_seg = td->start_seg; - ring->enq_seg = ring->enq_seg->next; - ring->enqueue = ring->enq_seg->trbs; - next = ring->enqueue; + do { + if (start_dma == 0) + return NULL; + /* We may get an event for a Link TRB in the middle of a TD */ + end_seg_dma = xhci_trb_virt_to_dma(cur_seg, + &cur_seg->trbs[TRBS_PER_SEGMENT - 1]); + /* If the end TRB isn't in this segment, this is set to 0 */ + end_trb_dma = xhci_trb_virt_to_dma(cur_seg, td->end_trb); - if (link_trb_count++ > ring->num_segs) { - xhci_warn(xhci, "%s: Ring link TRB loop\n", __func__); - break; + if (end_trb_dma > 0) { + /* The end TRB is in this segment, so suspect should be here */ + if (start_dma <= end_trb_dma) { + if (suspect_dma >= start_dma && suspect_dma <= end_trb_dma) + return cur_seg; + } else { + /* Case for one segment with + * a TD wrapped around to the top + */ + if ((suspect_dma >= start_dma && + suspect_dma <= end_seg_dma) || + (suspect_dma >= cur_seg->dma && + suspect_dma <= end_trb_dma)) + return cur_seg; + } + return NULL; } - } + /* Might still be somewhere in this segment */ + if (suspect_dma >= start_dma && suspect_dma <= end_seg_dma) + return cur_seg; + + cur_seg = cur_seg->next; + start_dma = xhci_trb_virt_to_dma(cur_seg, &cur_seg->trbs[0]); + } while (cur_seg != td->start_seg); - trace_xhci_inc_enq(ring); + return NULL; } /* @@ -283,7 +339,7 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, * Only for transfer and command rings where driver is the producer, not for * event rings. */ -static unsigned int xhci_num_trbs_free(struct xhci_hcd *xhci, struct xhci_ring *ring) +static unsigned int xhci_num_trbs_free(struct xhci_ring *ring) { struct xhci_segment *enq_seg = ring->enq_seg; union xhci_trb *enq = ring->enqueue; @@ -308,7 +364,7 @@ static unsigned int xhci_num_trbs_free(struct xhci_hcd *xhci, struct xhci_ring * free += last_on_seg - enq; enq_seg = enq_seg->next; enq = enq_seg->trbs; - } while (i++ <= ring->num_segs); + } while (i++ < ring->num_segs); return free; } @@ -351,10 +407,8 @@ static unsigned int xhci_ring_expansion_needed(struct xhci_hcd *xhci, struct xhc while (new_segs > 0) { seg = seg->next; if (seg == ring->deq_seg) { - xhci_dbg(xhci, "Ring expansion by %d segments needed\n", - new_segs); - xhci_dbg(xhci, "Adding %d trbs moves enq %d trbs into deq seg\n", - num_trbs, trbs_past_seg % TRBS_PER_SEGMENT); + xhci_dbg(xhci, "Adding %d trbs requires expanding ring by %d segments\n", + num_trbs, new_segs); return new_segs; } new_segs--; @@ -425,12 +479,13 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci, if ((xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue) && !(xhci->xhc_state & XHCI_STATE_DYING)) { xhci->current_cmd = cur_cmd; - xhci_mod_cmd_timer(xhci); + if (cur_cmd) + xhci_mod_cmd_timer(xhci); xhci_ring_cmd_db(xhci); } } -/* Must be called with xhci->lock held, releases and aquires lock back */ +/* Must be called with xhci->lock held, releases and acquires lock back */ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags) { struct xhci_segment *new_seg = xhci->cmd_ring->deq_seg; @@ -450,9 +505,9 @@ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags) * avoiding corrupting the command ring pointer in case the command ring * is stopped by the time the upper dword is written. */ - next_trb(xhci, NULL, &new_seg, &new_deq); + next_trb(&new_seg, &new_deq); if (trb_is_link(new_deq)) - next_trb(xhci, NULL, &new_seg, &new_deq); + next_trb(&new_seg, &new_deq); crcr = xhci_trb_virt_to_dma(new_seg, new_deq); xhci_write_64(xhci, crcr | CMD_RING_ABORT, &xhci->op_regs->cmd_ring); @@ -644,7 +699,7 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci, int new_cycle; dma_addr_t addr; u64 hw_dequeue; - bool cycle_found = false; + bool hw_dequeue_found = false; bool td_last_trb_found = false; u32 trb_sct = 0; int ret; @@ -656,52 +711,32 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci, stream_id); return -ENODEV; } - /* - * A cancelled TD can complete with a stall if HW cached the trb. - * In this case driver can't find td, but if the ring is empty we - * can move the dequeue pointer to the current enqueue position. - * We shouldn't hit this anymore as cached cancelled TRBs are given back - * after clearing the cache, but be on the safe side and keep it anyway - */ - if (!td) { - if (list_empty(&ep_ring->td_list)) { - new_seg = ep_ring->enq_seg; - new_deq = ep_ring->enqueue; - new_cycle = ep_ring->cycle_state; - xhci_dbg(xhci, "ep ring empty, Set new dequeue = enqueue"); - goto deq_found; - } else { - xhci_warn(xhci, "Can't find new dequeue state, missing td\n"); - return -EINVAL; - } - } hw_dequeue = xhci_get_hw_deq(xhci, dev, ep_index, stream_id); new_seg = ep_ring->deq_seg; new_deq = ep_ring->dequeue; - new_cycle = hw_dequeue & 0x1; + new_cycle = le32_to_cpu(td->end_trb->generic.field[3]) & TRB_CYCLE; /* - * We want to find the pointer, segment and cycle state of the new trb - * (the one after current TD's last_trb). We know the cycle state at - * hw_dequeue, so walk the ring until both hw_dequeue and last_trb are - * found. + * Walk the ring until both the next TRB and hw_dequeue are found (don't + * move hw_dequeue back if it went forward due to a HW bug). Cycle state + * is loaded from a known good TRB, track later toggles to maintain it. */ do { - if (!cycle_found && xhci_trb_virt_to_dma(new_seg, new_deq) + if (!hw_dequeue_found && xhci_trb_virt_to_dma(new_seg, new_deq) == (dma_addr_t)(hw_dequeue & ~0xf)) { - cycle_found = true; + hw_dequeue_found = true; if (td_last_trb_found) break; } - if (new_deq == td->last_trb) + if (new_deq == td->end_trb) td_last_trb_found = true; - if (cycle_found && trb_is_link(new_deq) && + if (td_last_trb_found && trb_is_link(new_deq) && link_trb_toggles_cycle(new_deq)) new_cycle ^= 0x1; - next_trb(xhci, ep_ring, &new_seg, &new_deq); + next_trb(&new_seg, &new_deq); /* Search wrapped around, bail out */ if (new_deq == ep->ring->dequeue) { @@ -709,9 +744,7 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci, return -EINVAL; } - } while (!cycle_found || !td_last_trb_found); - -deq_found: + } while (!hw_dequeue_found || !td_last_trb_found); /* Don't update the ring cycle state for the producer (us). */ addr = xhci_trb_virt_to_dma(new_seg, new_deq); @@ -740,7 +773,7 @@ deq_found: lower_32_bits(addr) | trb_sct | new_cycle, upper_32_bits(addr), STREAM_ID_FOR_TRB(stream_id), SLOT_ID_FOR_TRB(slot_id) | - EP_ID_FOR_TRB(ep_index) | TRB_TYPE(TRB_SET_DEQ), false); + EP_INDEX_FOR_TRB(ep_index) | TRB_TYPE(TRB_SET_DEQ), false); if (ret < 0) { xhci_free_command(xhci, cmd); return ret; @@ -765,30 +798,25 @@ deq_found: * (The last TRB actually points to the ring enqueue pointer, which is not part * of this TD.) This is used to remove partially enqueued isoc TDs from a ring. */ -static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, - struct xhci_td *td, bool flip_cycle) +static void td_to_noop(struct xhci_td *td, bool flip_cycle) { struct xhci_segment *seg = td->start_seg; - union xhci_trb *trb = td->first_trb; + union xhci_trb *trb = td->start_trb; while (1) { trb_to_noop(trb, TRB_TR_NOOP); /* flip cycle if asked to */ - if (flip_cycle && trb != td->first_trb && trb != td->last_trb) + if (flip_cycle && trb != td->start_trb && trb != td->end_trb) trb->generic.field[3] ^= cpu_to_le32(TRB_CYCLE); - if (trb == td->last_trb) + if (trb == td->end_trb) break; - next_trb(xhci, ep_ring, &seg, &trb); + next_trb(&seg, &trb); } } -/* - * Must be called with xhci->lock held in interrupt context, - * releases and re-acquires xhci->lock - */ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci, struct xhci_td *cur_td, int status) { @@ -828,7 +856,7 @@ static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci, dma_unmap_single(dev, seg->bounce_dma, ring->bounce_buf_len, DMA_FROM_DEVICE); - /* for in tranfers we need to copy the data from bounce to sg */ + /* for in transfers we need to copy the data from bounce to sg */ if (urb->num_sgs) { len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, seg->bounce_buf, seg->bounce_len, seg->bounce_offs); @@ -843,8 +871,8 @@ static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci, seg->bounce_offs = 0; } -static int xhci_td_cleanup(struct xhci_hcd *xhci, struct xhci_td *td, - struct xhci_ring *ep_ring, int status) +static void xhci_td_cleanup(struct xhci_hcd *xhci, struct xhci_td *td, + struct xhci_ring *ep_ring, int status) { struct urb *urb = NULL; @@ -887,10 +915,18 @@ static int xhci_td_cleanup(struct xhci_hcd *xhci, struct xhci_td *td, status = 0; xhci_giveback_urb_in_irq(xhci, td, status); } - - return 0; } +/* Give back previous TD and move on to the next TD. */ +static void xhci_dequeue_td(struct xhci_hcd *xhci, struct xhci_td *td, struct xhci_ring *ring, + u32 status) +{ + ring->dequeue = td->end_trb; + ring->deq_seg = td->end_seg; + inc_deq(xhci, ring); + + xhci_td_cleanup(xhci, td, ring, status); +} /* Complete the cancelled URBs we unlinked from td_list. */ static void xhci_giveback_invalidated_tds(struct xhci_virt_ep *ep) @@ -1001,13 +1037,20 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep) unsigned int slot_id = ep->vdev->slot_id; int err; + /* + * This is not going to work if the hardware is changing its dequeue + * pointers as we look at them. Completion handler will call us later. + */ + if (ep->ep_state & SET_DEQ_PENDING) + return 0; + xhci = ep->xhci; list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, cancelled_td_list) { xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, "Removing canceled TD starting at 0x%llx (dma) in stream %u URB %p", (unsigned long long)xhci_trb_virt_to_dma( - td->start_seg, td->first_trb), + td->start_seg, td->start_trb), td->urb->stream_id, td->urb); list_del_init(&td->td_list); ring = xhci_urb_to_transfer_ring(xhci, td->urb); @@ -1026,26 +1069,39 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep) td->urb->stream_id); hw_deq &= ~0xf; - if (td->cancel_status == TD_HALTED || - trb_in_td(xhci, td->start_seg, td->first_trb, td->last_trb, hw_deq, false)) { + if (td->cancel_status == TD_HALTED || trb_in_td(td, hw_deq)) { switch (td->cancel_status) { case TD_CLEARED: /* TD is already no-op */ case TD_CLEARING_CACHE: /* set TR deq command already queued */ break; case TD_DIRTY: /* TD is cached, clear it */ case TD_HALTED: + case TD_CLEARING_CACHE_DEFERRED: + if (cached_td) { + if (cached_td->urb->stream_id != td->urb->stream_id) { + /* Multiple streams case, defer move dq */ + xhci_dbg(xhci, + "Move dq deferred: stream %u URB %p\n", + td->urb->stream_id, td->urb); + td->cancel_status = TD_CLEARING_CACHE_DEFERRED; + break; + } + + /* Should never happen, but clear the TD if it does */ + xhci_warn(xhci, + "Found multiple active URBs %p and %p in stream %u?\n", + td->urb, cached_td->urb, + td->urb->stream_id); + td_to_noop(cached_td, false); + cached_td->cancel_status = TD_CLEARED; + } + td_to_noop(td, false); td->cancel_status = TD_CLEARING_CACHE; - if (cached_td) - /* FIXME stream case, several stopped rings */ - xhci_dbg(xhci, - "Move dq past stream %u URB %p instead of stream %u URB %p\n", - td->urb->stream_id, td->urb, - cached_td->urb->stream_id, cached_td->urb); cached_td = td; break; } } else { - td_to_noop(xhci, ring, td, false); + td_to_noop(td, false); td->cancel_status = TD_CLEARED; } } @@ -1060,11 +1116,17 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep) if (err) { /* Failed to move past cached td, just set cached TDs to no-op */ list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, cancelled_td_list) { - if (td->cancel_status != TD_CLEARING_CACHE) + /* + * Deferred TDs need to have the deq pointer set after the above command + * completes, so if that failed we just give up on all of them (and + * complain loudly since this could cause issues due to caching). + */ + if (td->cancel_status != TD_CLEARING_CACHE && + td->cancel_status != TD_CLEARING_CACHE_DEFERRED) continue; - xhci_dbg(xhci, "Failed to clear cancelled cached URB %p, mark clear anyway\n", - td->urb); - td_to_noop(xhci, ring, td, false); + xhci_warn(xhci, "Failed to clear cancelled cached URB %p, mark clear anyway\n", + td->urb); + td_to_noop(td, false); td->cancel_status = TD_CLEARED; } } @@ -1072,6 +1134,19 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep) } /* + * Erase queued TDs from transfer ring(s) and give back those the xHC didn't + * stop on. If necessary, queue commands to move the xHC off cancelled TDs it + * stopped on. Those will be given back later when the commands complete. + * + * Call under xhci->lock on a stopped endpoint. + */ +void xhci_process_cancelled_tds(struct xhci_virt_ep *ep) +{ + xhci_invalidate_cancelled_tds(ep); + xhci_giveback_invalidated_tds(ep); +} + +/* * Returns the TD the endpoint ring halted on. * Only call for non-running rings without streams. */ @@ -1084,8 +1159,7 @@ static struct xhci_td *find_halted_td(struct xhci_virt_ep *ep) hw_deq = xhci_get_hw_deq(ep->xhci, ep->vdev, ep->ep_index, 0); hw_deq &= ~0xf; td = list_first_entry(&ep->ring->td_list, struct xhci_td, td_list); - if (trb_in_td(ep->xhci, td->start_seg, td->first_trb, - td->last_trb, hw_deq, false)) + if (trb_in_td(td, hw_deq)) return td; } return NULL; @@ -1145,7 +1219,14 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id, */ switch (GET_EP_CTX_STATE(ep_ctx)) { case EP_STATE_HALTED: - xhci_dbg(xhci, "Stop ep completion raced with stall, reset ep\n"); + xhci_dbg(xhci, "Stop ep completion raced with stall\n"); + /* + * If the halt happened before Stop Endpoint failed, its transfer event + * should have already been handled and Reset Endpoint should be pending. + */ + if (ep->ep_state & EP_HALTED) + goto reset_done; + if (ep->ep_state & EP_HAS_STREAMS) { reset_type = EP_SOFT_RESET; } else { @@ -1156,22 +1237,45 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id, } /* reset ep, reset handler cleans up cancelled tds */ err = xhci_handle_halted_endpoint(xhci, ep, td, reset_type); + xhci_dbg(xhci, "Stop ep completion resetting ep, status %d\n", err); if (err) break; +reset_done: + /* Reset EP handler will clean up cancelled TDs */ ep->ep_state &= ~EP_STOP_CMD_PENDING; return; case EP_STATE_STOPPED: /* - * NEC uPD720200 sometimes sets this state and fails with - * Context Error while continuing to process TRBs. - * Be conservative and trust EP_CTX_STATE on other chips. + * Per xHCI 4.6.9, Stop Endpoint command on a Stopped + * EP is a Context State Error, and EP stays Stopped. + * + * But maybe it failed on Halted, and somebody ran Reset + * Endpoint later. EP state is now Stopped and EP_HALTED + * still set because Reset EP handler will run after us. */ - if (!(xhci->quirks & XHCI_NEC_HOST)) + if (ep->ep_state & EP_HALTED) break; + /* + * On some HCs EP state remains Stopped for some tens of + * us to a few ms or more after a doorbell ring, and any + * new Stop Endpoint fails without aborting the restart. + * This handler may run quickly enough to still see this + * Stopped state, but it will soon change to Running. + * + * Assume this bug on unexpected Stop Endpoint failures. + * Keep retrying until the EP starts and stops again. + */ fallthrough; case EP_STATE_RUNNING: /* Race, HW handled stop ep cmd before ep was running */ - xhci_dbg(xhci, "Stop ep completion ctx error, ep is running\n"); + xhci_dbg(xhci, "Stop ep completion ctx error, ctx_state %d\n", + GET_EP_CTX_STATE(ep_ctx)); + /* + * Don't retry forever if we guessed wrong or a defective HC never starts + * the EP or says 'Running' but fails the command. We must give back TDs. + */ + if (time_is_before_jiffies(ep->stop_time + msecs_to_jiffies(100))) + break; command = xhci_alloc_command(xhci, false, GFP_ATOMIC); if (!command) { @@ -1296,43 +1400,6 @@ void xhci_hc_died(struct xhci_hcd *xhci) usb_hc_died(xhci_to_hcd(xhci)); } -static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci, - struct xhci_virt_device *dev, - struct xhci_ring *ep_ring, - unsigned int ep_index) -{ - union xhci_trb *dequeue_temp; - - dequeue_temp = ep_ring->dequeue; - - /* If we get two back-to-back stalls, and the first stalled transfer - * ends just before a link TRB, the dequeue pointer will be left on - * the link TRB by the code in the while loop. So we have to update - * the dequeue pointer one segment further, or we'll jump off - * the segment into la-la-land. - */ - if (trb_is_link(ep_ring->dequeue)) { - ep_ring->deq_seg = ep_ring->deq_seg->next; - ep_ring->dequeue = ep_ring->deq_seg->trbs; - } - - while (ep_ring->dequeue != dev->eps[ep_index].queued_deq_ptr) { - /* We have more usable TRBs */ - ep_ring->dequeue++; - if (trb_is_link(ep_ring->dequeue)) { - if (ep_ring->dequeue == - dev->eps[ep_index].queued_deq_ptr) - break; - ep_ring->deq_seg = ep_ring->deq_seg->next; - ep_ring->dequeue = ep_ring->deq_seg->trbs; - } - if (ep_ring->dequeue == dequeue_temp) { - xhci_dbg(xhci, "Unable to find new dequeue pointer\n"); - break; - } - } -} - /* * When we get a completion for a Set Transfer Ring Dequeue Pointer command, * we need to clear the set deq pending flag in the endpoint ring state, so that @@ -1349,6 +1416,7 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id, struct xhci_virt_ep *ep; struct xhci_ep_ctx *ep_ctx; struct xhci_slot_ctx *slot_ctx; + struct xhci_stream_ctx *stream_ctx; struct xhci_td *td, *tmp_td; ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); @@ -1370,6 +1438,11 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id, trace_xhci_handle_cmd_set_deq(slot_ctx); trace_xhci_handle_cmd_set_deq_ep(ep_ctx); + if (ep->ep_state & EP_HAS_STREAMS) { + stream_ctx = &ep->stream_info->stream_ctx_array[stream_id]; + trace_xhci_handle_cmd_set_deq_stream(ep->stream_info, stream_id); + } + if (cmd_comp_code != COMP_SUCCESS) { unsigned int ep_state; unsigned int slot_state; @@ -1406,9 +1479,21 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id, u64 deq; /* 4.6.10 deq ptr is written to the stream ctx for streams */ if (ep->ep_state & EP_HAS_STREAMS) { - struct xhci_stream_ctx *ctx = - &ep->stream_info->stream_ctx_array[stream_id]; - deq = le64_to_cpu(ctx->stream_ring) & SCTX_DEQ_MASK; + deq = le64_to_cpu(stream_ctx->stream_ring) & SCTX_DEQ_MASK; + + /* + * Cadence xHCI controllers store some endpoint state + * information within Rsvd0 fields of Stream Endpoint + * context. This field is not cleared during Set TR + * Dequeue Pointer command which causes XDMA to skip + * over transfer ring and leads to data loss on stream + * pipe. + * To fix this issue driver must clear Rsvd0 field. + */ + if (xhci->quirks & XHCI_CDNS_SCTX_QUIRK) { + stream_ctx->reserved[0] = 0; + stream_ctx->reserved[1] = 0; + } } else { deq = le64_to_cpu(ep_ctx->deq) & ~EP_CTX_CYCLE_MASK; } @@ -1419,8 +1504,8 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id, /* Update the ring's dequeue segment and dequeue pointer * to reflect the new position. */ - update_ring_for_set_deq_completion(xhci, ep->vdev, - ep_ring, ep_index); + ep_ring->deq_seg = ep->queued_deq_seg; + ep_ring->dequeue = ep->queued_deq_ptr; } else { xhci_warn(xhci, "Mismatch between completed Set TR Deq Ptr command & xHCI internal state.\n"); xhci_warn(xhci, "ep deq seg = %p, deq ptr = %p\n", @@ -1445,8 +1530,21 @@ cleanup: ep->ep_state &= ~SET_DEQ_PENDING; ep->queued_deq_seg = NULL; ep->queued_deq_ptr = NULL; - /* Restart any rings with pending URBs */ - ring_doorbell_for_active_rings(xhci, slot_id, ep_index); + + /* Check for deferred or newly cancelled TDs */ + if (!list_empty(&ep->cancelled_td_list)) { + xhci_dbg(ep->xhci, "%s: Pending TDs to clear, continuing with invalidation\n", + __func__); + xhci_invalidate_cancelled_tds(ep); + /* Try to restart the endpoint if all is done */ + ring_doorbell_for_active_rings(xhci, slot_id, ep_index); + /* Start giving back any TDs invalidated above */ + xhci_giveback_invalidated_tds(ep); + } else { + /* Restart any rings with pending URBs */ + xhci_dbg(ep->xhci, "%s: All TDs cleared, ring doorbell\n", __func__); + ring_doorbell_for_active_rings(xhci, slot_id, ep_index); + } } static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id, @@ -1483,8 +1581,8 @@ static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id, ring_doorbell_for_active_rings(xhci, slot_id, ep_index); } -static void xhci_handle_cmd_enable_slot(struct xhci_hcd *xhci, int slot_id, - struct xhci_command *command, u32 cmd_comp_code) +static void xhci_handle_cmd_enable_slot(int slot_id, struct xhci_command *command, + u32 cmd_comp_code) { if (cmd_comp_code == COMP_SUCCESS) command->slot_id = slot_id; @@ -1509,8 +1607,7 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id) xhci_free_device_endpoint_resources(xhci, virt_dev, true); } -static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id, - u32 cmd_comp_code) +static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id) { struct xhci_virt_device *virt_dev; struct xhci_input_control_ctx *ctrl_ctx; @@ -1585,12 +1682,13 @@ static void xhci_handle_cmd_nec_get_fw(struct xhci_hcd *xhci, NEC_FW_MINOR(le32_to_cpu(event->status))); } -static void xhci_complete_del_and_free_cmd(struct xhci_command *cmd, u32 status) +static void xhci_complete_del_and_free_cmd(struct xhci_command *cmd, u32 comp_code, u32 comp_param) { list_del(&cmd->cmd_list); if (cmd->completion) { - cmd->status = status; + cmd->status = comp_code; + cmd->comp_param = comp_param; complete(cmd->completion); } else { kfree(cmd); @@ -1602,7 +1700,7 @@ void xhci_cleanup_command_queue(struct xhci_hcd *xhci) struct xhci_command *cur_cmd, *tmp_cmd; xhci->current_cmd = NULL; list_for_each_entry_safe(cur_cmd, tmp_cmd, &xhci->cmd_list, cmd_list) - xhci_complete_del_and_free_cmd(cur_cmd, COMP_COMMAND_ABORTED); + xhci_complete_del_and_free_cmd(cur_cmd, COMP_COMMAND_ABORTED, 0); } void xhci_handle_command_timeout(struct work_struct *work) @@ -1687,6 +1785,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, struct xhci_event_cmd *event) { unsigned int slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags)); + u32 status = le32_to_cpu(event->status); u64 cmd_dma; dma_addr_t cmd_dequeue_dma; u32 cmd_comp_code; @@ -1702,7 +1801,15 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, cmd_dma = le64_to_cpu(event->cmd_trb); cmd_trb = xhci->cmd_ring->dequeue; - trace_xhci_handle_command(xhci->cmd_ring, &cmd_trb->generic); + trace_xhci_handle_command(xhci->cmd_ring, &cmd_trb->generic, cmd_dma); + + cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status)); + + /* If CMD ring stopped we own the trbs between enqueue and dequeue */ + if (cmd_comp_code == COMP_COMMAND_RING_STOPPED) { + complete_all(&xhci->cmd_ring_stop_completion); + return; + } cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, cmd_trb); @@ -1720,14 +1827,6 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, cancel_delayed_work(&xhci->cmd_timer); - cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status)); - - /* If CMD ring stopped we own the trbs between enqueue and dequeue */ - if (cmd_comp_code == COMP_COMMAND_RING_STOPPED) { - complete_all(&xhci->cmd_ring_stop_completion); - return; - } - if (cmd->command_trb != xhci->cmd_ring->dequeue) { xhci_err(xhci, "Command completion event does not match command\n"); @@ -1752,14 +1851,14 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, cmd_type = TRB_FIELD_TO_TYPE(le32_to_cpu(cmd_trb->generic.field[3])); switch (cmd_type) { case TRB_ENABLE_SLOT: - xhci_handle_cmd_enable_slot(xhci, slot_id, cmd, cmd_comp_code); + xhci_handle_cmd_enable_slot(slot_id, cmd, cmd_comp_code); break; case TRB_DISABLE_SLOT: xhci_handle_cmd_disable_slot(xhci, slot_id); break; case TRB_CONFIG_EP: if (!cmd->completion) - xhci_handle_cmd_config_ep(xhci, slot_id, cmd_comp_code); + xhci_handle_cmd_config_ep(xhci, slot_id); break; case TRB_EVAL_CONTEXT: break; @@ -1815,7 +1914,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, } event_handled: - xhci_complete_del_and_free_cmd(cmd, cmd_comp_code); + xhci_complete_del_and_free_cmd(cmd, cmd_comp_code, COMP_PARAM(status)); inc_deq(xhci, xhci->cmd_ring); } @@ -1877,9 +1976,7 @@ static void xhci_cavium_reset_phy_quirk(struct xhci_hcd *xhci) } while (!(pll_lock_check & 0x1) && --retry_count); } -static void handle_port_status(struct xhci_hcd *xhci, - struct xhci_interrupter *ir, - union xhci_trb *event) +static void handle_port_status(struct xhci_hcd *xhci, union xhci_trb *event) { struct usb_hcd *hcd; u32 port_id; @@ -2050,73 +2147,6 @@ cleanup: spin_lock(&xhci->lock); } -/* - * This TD is defined by the TRBs starting at start_trb in start_seg and ending - * at end_trb, which may be in another segment. If the suspect DMA address is a - * TRB in this TD, this function returns that TRB's segment. Otherwise it - * returns 0. - */ -struct xhci_segment *trb_in_td(struct xhci_hcd *xhci, - struct xhci_segment *start_seg, - union xhci_trb *start_trb, - union xhci_trb *end_trb, - dma_addr_t suspect_dma, - bool debug) -{ - dma_addr_t start_dma; - dma_addr_t end_seg_dma; - dma_addr_t end_trb_dma; - struct xhci_segment *cur_seg; - - start_dma = xhci_trb_virt_to_dma(start_seg, start_trb); - cur_seg = start_seg; - - do { - if (start_dma == 0) - return NULL; - /* We may get an event for a Link TRB in the middle of a TD */ - end_seg_dma = xhci_trb_virt_to_dma(cur_seg, - &cur_seg->trbs[TRBS_PER_SEGMENT - 1]); - /* If the end TRB isn't in this segment, this is set to 0 */ - end_trb_dma = xhci_trb_virt_to_dma(cur_seg, end_trb); - - if (debug) - xhci_warn(xhci, - "Looking for event-dma %016llx trb-start %016llx trb-end %016llx seg-start %016llx seg-end %016llx\n", - (unsigned long long)suspect_dma, - (unsigned long long)start_dma, - (unsigned long long)end_trb_dma, - (unsigned long long)cur_seg->dma, - (unsigned long long)end_seg_dma); - - if (end_trb_dma > 0) { - /* The end TRB is in this segment, so suspect should be here */ - if (start_dma <= end_trb_dma) { - if (suspect_dma >= start_dma && suspect_dma <= end_trb_dma) - return cur_seg; - } else { - /* Case for one segment with - * a TD wrapped around to the top - */ - if ((suspect_dma >= start_dma && - suspect_dma <= end_seg_dma) || - (suspect_dma >= cur_seg->dma && - suspect_dma <= end_trb_dma)) - return cur_seg; - } - return NULL; - } else { - /* Might still be somewhere in this segment */ - if (suspect_dma >= start_dma && suspect_dma <= end_seg_dma) - return cur_seg; - } - cur_seg = cur_seg->next; - start_dma = xhci_trb_virt_to_dma(cur_seg, &cur_seg->trbs[0]); - } while (cur_seg != start_seg); - - return NULL; -} - static void xhci_clear_hub_tt_buffer(struct xhci_hcd *xhci, struct xhci_td *td, struct xhci_virt_ep *ep) { @@ -2134,30 +2164,34 @@ static void xhci_clear_hub_tt_buffer(struct xhci_hcd *xhci, struct xhci_td *td, } } -/* Check if an error has halted the endpoint ring. The class driver will - * cleanup the halt for a non-default control endpoint if we indicate a stall. - * However, a babble and other errors also halt the endpoint ring, and the class - * driver won't clear the halt in that case, so we need to issue a Set Transfer - * Ring Dequeue Pointer command manually. +/* + * Check if xhci internal endpoint state has gone to a "halt" state due to an + * error or stall, including default control pipe protocol stall. + * The internal halt needs to be cleared with a reset endpoint command. + * + * External device side is also halted in functional stall cases. Class driver + * will clear the device halt with a CLEAR_FEATURE(ENDPOINT_HALT) request later. */ -static int xhci_requires_manual_halt_cleanup(struct xhci_hcd *xhci, - struct xhci_ep_ctx *ep_ctx, - unsigned int trb_comp_code) +static bool xhci_halted_host_endpoint(struct xhci_ep_ctx *ep_ctx, unsigned int comp_code) { - /* TRB completion codes that may require a manual halt cleanup */ - if (trb_comp_code == COMP_USB_TRANSACTION_ERROR || - trb_comp_code == COMP_BABBLE_DETECTED_ERROR || - trb_comp_code == COMP_SPLIT_TRANSACTION_ERROR) - /* The 0.95 spec says a babbling control endpoint - * is not halted. The 0.96 spec says it is. Some HW - * claims to be 0.95 compliant, but it halts the control - * endpoint anyway. Check if a babble halted the - * endpoint. + /* Stall halts both internal and device side endpoint */ + if (comp_code == COMP_STALL_ERROR) + return true; + + /* TRB completion codes that may require internal halt cleanup */ + if (comp_code == COMP_USB_TRANSACTION_ERROR || + comp_code == COMP_BABBLE_DETECTED_ERROR || + comp_code == COMP_SPLIT_TRANSACTION_ERROR) + /* + * The 0.95 spec says a babbling control endpoint is not halted. + * The 0.96 spec says it is. Some HW claims to be 0.95 + * compliant, but it halts the control endpoint anyway. + * Check endpoint context if endpoint is halted. */ if (GET_EP_CTX_STATE(ep_ctx) == EP_STATE_HALTED) - return 1; + return true; - return 0; + return false; } int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code) @@ -2174,9 +2208,9 @@ int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code) return 0; } -static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, - struct xhci_ring *ep_ring, struct xhci_td *td, - u32 trb_comp_code) +static void finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + struct xhci_ring *ep_ring, struct xhci_td *td, + u32 trb_comp_code) { struct xhci_ep_ctx *ep_ctx; @@ -2191,7 +2225,7 @@ static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, * stopped TDs. A stopped TD may be restarted, so don't update * the ring dequeue pointer or take this TD off any lists yet. */ - return 0; + return; case COMP_USB_TRANSACTION_ERROR: case COMP_BABBLE_DETECTED_ERROR: case COMP_SPLIT_TRANSACTION_ERROR: @@ -2216,8 +2250,8 @@ static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, !list_empty(&td->cancelled_td_list)) { xhci_dbg(xhci, "Already resolving halted ep for 0x%llx\n", (unsigned long long)xhci_trb_virt_to_dma( - td->start_seg, td->first_trb)); - return 0; + td->start_seg, td->start_trb)); + return; } /* endpoint not halted, don't reset it */ break; @@ -2225,7 +2259,7 @@ static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, /* Almost same procedure as for STALL_ERROR below */ xhci_clear_hub_tt_buffer(xhci, td, ep); xhci_handle_halted_endpoint(xhci, ep, td, EP_HARD_RESET); - return 0; + return; case COMP_STALL_ERROR: /* * xhci internal endpoint state will go to a "halt" state for @@ -2242,28 +2276,22 @@ static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, xhci_handle_halted_endpoint(xhci, ep, td, EP_HARD_RESET); - return 0; /* xhci_handle_halted_endpoint marked td cancelled */ + return; /* xhci_handle_halted_endpoint marked td cancelled */ default: break; } - /* Update ring dequeue pointer */ - ep_ring->dequeue = td->last_trb; - ep_ring->deq_seg = td->last_trb_seg; - inc_deq(xhci, ep_ring); - - return xhci_td_cleanup(xhci, td, ep_ring, td->status); + xhci_dequeue_td(xhci, td, ep_ring, td->status); } -/* sum trb lengths from ring dequeue up to stop_trb, _excluding_ stop_trb */ -static int sum_trb_lengths(struct xhci_hcd *xhci, struct xhci_ring *ring, - union xhci_trb *stop_trb) +/* sum trb lengths from the first trb up to stop_trb, _excluding_ stop_trb */ +static u32 sum_trb_lengths(struct xhci_td *td, union xhci_trb *stop_trb) { u32 sum; - union xhci_trb *trb = ring->dequeue; - struct xhci_segment *seg = ring->deq_seg; + union xhci_trb *trb = td->start_trb; + struct xhci_segment *seg = td->start_seg; - for (sum = 0; trb != stop_trb; next_trb(xhci, ring, &seg, &trb)) { + for (sum = 0; trb != stop_trb; next_trb(&seg, &trb)) { if (!trb_is_noop(trb) && !trb_is_link(trb)) sum += TRB_LEN(le32_to_cpu(trb->generic.field[2])); } @@ -2273,9 +2301,9 @@ static int sum_trb_lengths(struct xhci_hcd *xhci, struct xhci_ring *ring, /* * Process control tds, update urb status and actual_length. */ -static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, - struct xhci_ring *ep_ring, struct xhci_td *td, - union xhci_trb *ep_trb, struct xhci_transfer_event *event) +static void process_ctrl_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + struct xhci_ring *ep_ring, struct xhci_td *td, + union xhci_trb *ep_trb, struct xhci_transfer_event *event) { struct xhci_ep_ctx *ep_ctx; u32 trb_comp_code; @@ -2327,8 +2355,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, case COMP_STOPPED_LENGTH_INVALID: goto finish_td; default: - if (!xhci_requires_manual_halt_cleanup(xhci, - ep_ctx, trb_comp_code)) + if (!xhci_halted_host_endpoint(ep_ctx, trb_comp_code)) break; xhci_dbg(xhci, "TRB error %u, halted endpoint index = %u\n", trb_comp_code, ep->ep_index); @@ -2355,7 +2382,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, td->urb_length_set = true; td->urb->actual_length = requested - remaining; xhci_dbg(xhci, "Waiting for status stage event\n"); - return 0; + return; } /* at status stage */ @@ -2363,15 +2390,15 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, td->urb->actual_length = requested; finish_td: - return finish_td(xhci, ep, ep_ring, td, trb_comp_code); + finish_td(xhci, ep, ep_ring, td, trb_comp_code); } /* * Process isochronous tds, update urb packet status and actual_length. */ -static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, - struct xhci_ring *ep_ring, struct xhci_td *td, - union xhci_trb *ep_trb, struct xhci_transfer_event *event) +static void process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + struct xhci_ring *ep_ring, struct xhci_td *td, + union xhci_trb *ep_trb, struct xhci_transfer_event *event) { struct urb_priv *urb_priv; int idx; @@ -2399,8 +2426,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, break; if (remaining) { frame->status = short_framestatus; - if (xhci->quirks & XHCI_TRUST_TX_LENGTH) - sum_trbs_for_length = true; + sum_trbs_for_length = true; break; } frame->status = 0; @@ -2417,7 +2443,13 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, fallthrough; case COMP_ISOCH_BUFFER_OVERRUN: frame->status = -EOVERFLOW; - if (ep_trb != td->last_trb) + if (ep_trb != td->end_trb) + td->error_mid_td = true; + break; + case COMP_MISSED_SERVICE_ERROR: + frame->status = -EXDEV; + sum_trbs_for_length = true; + if (ep_trb != td->end_trb) td->error_mid_td = true; break; case COMP_INCOMPATIBLE_DEVICE_ERROR: @@ -2427,19 +2459,21 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, case COMP_USB_TRANSACTION_ERROR: frame->status = -EPROTO; sum_trbs_for_length = true; - if (ep_trb != td->last_trb) + if (ep_trb != td->end_trb) td->error_mid_td = true; break; case COMP_STOPPED: sum_trbs_for_length = true; break; case COMP_STOPPED_SHORT_PACKET: - /* field normally containing residue now contains tranferred */ + /* field normally containing residue now contains transferred */ frame->status = short_framestatus; requested = remaining; break; case COMP_STOPPED_LENGTH_INVALID: - requested = 0; + /* exclude stopped trb with invalid length from length sum */ + sum_trbs_for_length = true; + ep_trb_len = 0; remaining = 0; break; default: @@ -2452,7 +2486,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, goto finish_td; if (sum_trbs_for_length) - frame->actual_length = sum_trb_lengths(xhci, ep->ring, ep_trb) + + frame->actual_length = sum_trb_lengths(td, ep_trb) + ep_trb_len - remaining; else frame->actual_length = requested; @@ -2461,17 +2495,16 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, finish_td: /* Don't give back TD yet if we encountered an error mid TD */ - if (td->error_mid_td && ep_trb != td->last_trb) { + if (td->error_mid_td && ep_trb != td->end_trb) { xhci_dbg(xhci, "Error mid isoc TD, wait for final completion event\n"); td->urb_length_set = true; - return 0; + return; } - - return finish_td(xhci, ep, ep_ring, td, trb_comp_code); + finish_td(xhci, ep, ep_ring, td, trb_comp_code); } -static int skip_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, - struct xhci_virt_ep *ep, int status) +static void skip_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, + struct xhci_virt_ep *ep, int status) { struct urb_priv *urb_priv; struct usb_iso_packet_descriptor *frame; @@ -2487,20 +2520,15 @@ static int skip_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, /* calc actual length */ frame->actual_length = 0; - /* Update ring dequeue pointer */ - ep->ring->dequeue = td->last_trb; - ep->ring->deq_seg = td->last_trb_seg; - inc_deq(xhci, ep->ring); - - return xhci_td_cleanup(xhci, td, ep->ring, status); + xhci_dequeue_td(xhci, td, ep->ring, status); } /* * Process bulk and interrupt tds, update urb status and actual_length. */ -static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, - struct xhci_ring *ep_ring, struct xhci_td *td, - union xhci_trb *ep_trb, struct xhci_transfer_event *event) +static void process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + struct xhci_ring *ep_ring, struct xhci_td *td, + union xhci_trb *ep_trb, struct xhci_transfer_event *event) { struct xhci_slot_ctx *slot_ctx; u32 trb_comp_code; @@ -2516,7 +2544,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, case COMP_SUCCESS: ep->err_count = 0; /* handle success with untransferred data as short packet */ - if (ep_trb != td->last_trb || remaining) { + if (ep_trb != td->end_trb || remaining) { xhci_warn(xhci, "WARN Successful completion on short TX\n"); xhci_dbg(xhci, "ep %#x - asked for %d bytes, %d bytes untransferred\n", td->urb->ep->desc.bEndpointAddress, @@ -2525,9 +2553,6 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, td->status = 0; break; case COMP_SHORT_PACKET: - xhci_dbg(xhci, "ep %#x - asked for %d bytes, %d bytes untransferred\n", - td->urb->ep->desc.bEndpointAddress, - requested, remaining); td->status = 0; break; case COMP_STOPPED_SHORT_PACKET: @@ -2535,9 +2560,8 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, goto finish_td; case COMP_STOPPED_LENGTH_INVALID: /* stopped on ep trb with invalid length, exclude it */ - ep_trb_len = 0; - remaining = 0; - break; + td->urb->actual_length = sum_trb_lengths(td, ep_trb); + goto finish_td; case COMP_USB_TRANSACTION_ERROR: if (xhci->quirks & XHCI_NO_SOFT_RETRY || (ep->err_count++ > MAX_SOFT_RETRY) || @@ -2547,17 +2571,17 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, td->status = 0; xhci_handle_halted_endpoint(xhci, ep, td, EP_SOFT_RESET); - return 0; + return; default: /* do nothing */ break; } - if (ep_trb == td->last_trb) + if (ep_trb == td->end_trb) td->urb->actual_length = requested - remaining; else td->urb->actual_length = - sum_trb_lengths(xhci, ep_ring, ep_trb) + + sum_trb_lengths(td, ep_trb) + ep_trb_len - remaining; finish_td: if (remaining > requested) { @@ -2566,7 +2590,50 @@ finish_td: td->urb->actual_length = 0; } - return finish_td(xhci, ep, ep_ring, td, trb_comp_code); + finish_td(xhci, ep, ep_ring, td, trb_comp_code); +} + +/* Transfer events which don't point to a transfer TRB, see xhci 4.17.4 */ +static int handle_transferless_tx_event(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + u32 trb_comp_code) +{ + switch (trb_comp_code) { + case COMP_STALL_ERROR: + case COMP_USB_TRANSACTION_ERROR: + case COMP_INVALID_STREAM_TYPE_ERROR: + case COMP_INVALID_STREAM_ID_ERROR: + xhci_dbg(xhci, "Stream transaction error ep %u no id\n", ep->ep_index); + if (ep->err_count++ > MAX_SOFT_RETRY) + xhci_handle_halted_endpoint(xhci, ep, NULL, EP_HARD_RESET); + else + xhci_handle_halted_endpoint(xhci, ep, NULL, EP_SOFT_RESET); + break; + case COMP_RING_UNDERRUN: + case COMP_RING_OVERRUN: + case COMP_STOPPED_LENGTH_INVALID: + break; + default: + xhci_err(xhci, "Transfer event %u for unknown stream ring slot %u ep %u\n", + trb_comp_code, ep->vdev->slot_id, ep->ep_index); + return -ENODEV; + } + return 0; +} + +static bool xhci_spurious_success_tx_event(struct xhci_hcd *xhci, + struct xhci_ring *ring) +{ + switch (ring->old_trb_comp_code) { + case COMP_SHORT_PACKET: + return xhci->quirks & XHCI_SPURIOUS_SUCCESS; + case COMP_USB_TRANSACTION_ERROR: + case COMP_BABBLE_DETECTED_ERROR: + case COMP_ISOCH_BUFFER_OVERRUN: + return xhci->quirks & XHCI_ETRON_HOST && + ring->type == TYPE_ISOC; + default: + return false; + } } /* @@ -2589,8 +2656,7 @@ static int handle_tx_event(struct xhci_hcd *xhci, int status = -EINPROGRESS; struct xhci_ep_ctx *ep_ctx; u32 trb_comp_code; - int td_num = 0; - bool handling_skipped_tds = false; + bool ring_xrun_event = false; slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags)); ep_index = TRB_TO_EP_ID(le32_to_cpu(event->flags)) - 1; @@ -2613,36 +2679,8 @@ static int handle_tx_event(struct xhci_hcd *xhci, goto err_out; } - /* Some transfer events don't always point to a trb, see xhci 4.17.4 */ - if (!ep_ring) { - switch (trb_comp_code) { - case COMP_STALL_ERROR: - case COMP_USB_TRANSACTION_ERROR: - case COMP_INVALID_STREAM_TYPE_ERROR: - case COMP_INVALID_STREAM_ID_ERROR: - xhci_dbg(xhci, "Stream transaction error ep %u no id\n", - ep_index); - if (ep->err_count++ > MAX_SOFT_RETRY) - xhci_handle_halted_endpoint(xhci, ep, NULL, - EP_HARD_RESET); - else - xhci_handle_halted_endpoint(xhci, ep, NULL, - EP_SOFT_RESET); - goto cleanup; - case COMP_RING_UNDERRUN: - case COMP_RING_OVERRUN: - case COMP_STOPPED_LENGTH_INVALID: - goto cleanup; - default: - xhci_err(xhci, "ERROR Transfer event for unknown stream ring slot %u ep %u\n", - slot_id, ep_index); - goto err_out; - } - } - - /* Count current td numbers if ep->skip is set */ - if (ep->skip) - td_num += list_count_nodes(&ep_ring->td_list); + if (!ep_ring) + return handle_transferless_tx_event(xhci, ep, trb_comp_code); /* Look for common error cases */ switch (trb_comp_code) { @@ -2650,15 +2688,11 @@ static int handle_tx_event(struct xhci_hcd *xhci, * transfer type */ case COMP_SUCCESS: - if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) - break; - if (xhci->quirks & XHCI_TRUST_TX_LENGTH || - ep_ring->last_td_was_short) + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { trb_comp_code = COMP_SHORT_PACKET; - else - xhci_warn_ratelimited(xhci, - "WARN Successful completion on short TX for slot %u ep %u: needs XHCI_TRUST_TX_LENGTH quirk?\n", - slot_id, ep_index); + xhci_dbg(xhci, "Successful completion on short TX for slot %u ep %u with last td comp code %d\n", + slot_id, ep_index, ep_ring->old_trb_comp_code); + } break; case COMP_SHORT_PACKET: break; @@ -2728,21 +2762,13 @@ static int handle_tx_event(struct xhci_hcd *xhci, * a Ring Overrun Event for IN Isoch endpoint or Ring * Underrun Event for OUT Isoch endpoint. */ - xhci_dbg(xhci, "underrun event on endpoint\n"); - if (!list_empty(&ep_ring->td_list)) - xhci_dbg(xhci, "Underrun Event for slot %d ep %d " - "still with TDs queued?\n", - TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), - ep_index); - goto cleanup; + xhci_dbg(xhci, "Underrun event on slot %u ep %u\n", slot_id, ep_index); + ring_xrun_event = true; + break; case COMP_RING_OVERRUN: - xhci_dbg(xhci, "overrun event on endpoint\n"); - if (!list_empty(&ep_ring->td_list)) - xhci_dbg(xhci, "Overrun Event for slot %d ep %d " - "still with TDs queued?\n", - TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), - ep_index); - goto cleanup; + xhci_dbg(xhci, "Overrun event on slot %u ep %u\n", slot_id, ep_index); + ring_xrun_event = true; + break; case COMP_MISSED_SERVICE_ERROR: /* * When encounter missed service error, one or more isoc tds @@ -2752,15 +2778,15 @@ static int handle_tx_event(struct xhci_hcd *xhci, */ ep->skip = true; xhci_dbg(xhci, - "Miss service interval error for slot %u ep %u, set skip flag\n", - slot_id, ep_index); - goto cleanup; + "Miss service interval error for slot %u ep %u, set skip flag%s\n", + slot_id, ep_index, ep_trb_dma ? ", skip now" : ""); + break; case COMP_NO_PING_RESPONSE_ERROR: ep->skip = true; xhci_dbg(xhci, "No Ping response error for slot %u ep %u, Skip one Isoc TD\n", slot_id, ep_index); - goto cleanup; + return 0; case COMP_INCOMPATIBLE_DEVICE_ERROR: /* needs disable slot command to recover */ @@ -2777,134 +2803,122 @@ static int handle_tx_event(struct xhci_hcd *xhci, xhci_warn(xhci, "ERROR Unknown event condition %u for slot %u ep %u , HC probably busted\n", trb_comp_code, slot_id, ep_index); - goto cleanup; + if (ep->skip) + break; + return 0; } - do { - /* This TRB should be in the TD at the head of this ring's - * TD list. - */ - if (list_empty(&ep_ring->td_list)) { - /* - * Don't print wanings if it's due to a stopped endpoint - * generating an extra completion event if the device - * was suspended. Or, a event for the last TRB of a - * short TD we already got a short event for. - * The short TD is already removed from the TD list. - */ + /* + * xhci 4.10.2 states isoc endpoints should continue + * processing the next TD if there was an error mid TD. + * So host like NEC don't generate an event for the last + * isoc TRB even if the IOC flag is set. + * xhci 4.9.1 states that if there are errors in mult-TRB + * TDs xHC should generate an error for that TRB, and if xHC + * proceeds to the next TD it should genete an event for + * any TRB with IOC flag on the way. Other host follow this. + * + * We wait for the final IOC event, but if we get an event + * anywhere outside this TD, just give it back already. + */ + td = list_first_entry_or_null(&ep_ring->td_list, struct xhci_td, td_list); - if (!(trb_comp_code == COMP_STOPPED || - trb_comp_code == COMP_STOPPED_LENGTH_INVALID || - ep_ring->last_td_was_short)) { - xhci_warn(xhci, "WARN Event TRB for slot %d ep %d with no TDs queued?\n", - TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), - ep_index); - } - if (ep->skip) { - ep->skip = false; - xhci_dbg(xhci, "td_list is empty while skip flag set. Clear skip flag for slot %u ep %u.\n", - slot_id, ep_index); - } - if (trb_comp_code == COMP_STALL_ERROR || - xhci_requires_manual_halt_cleanup(xhci, ep_ctx, - trb_comp_code)) { - xhci_handle_halted_endpoint(xhci, ep, NULL, - EP_HARD_RESET); - } - goto cleanup; - } + if (td && td->error_mid_td && !trb_in_td(td, ep_trb_dma)) { + xhci_dbg(xhci, "Missing TD completion event after mid TD error\n"); + xhci_dequeue_td(xhci, td, ep_ring, td->status); + } - /* We've skipped all the TDs on the ep ring when ep->skip set */ - if (ep->skip && td_num == 0) { - ep->skip = false; - xhci_dbg(xhci, "All tds on the ep_ring skipped. Clear skip flag for slot %u ep %u.\n", - slot_id, ep_index); - goto cleanup; + /* If the TRB pointer is NULL, missed TDs will be skipped on the next event */ + if (trb_comp_code == COMP_MISSED_SERVICE_ERROR && !ep_trb_dma) + return 0; + + if (list_empty(&ep_ring->td_list)) { + /* + * Don't print wanings if ring is empty due to a stopped endpoint generating an + * extra completion event if the device was suspended. Or, a event for the last TRB + * of a short TD we already got a short event for. The short TD is already removed + * from the TD list. + */ + if (trb_comp_code != COMP_STOPPED && + trb_comp_code != COMP_STOPPED_LENGTH_INVALID && + !ring_xrun_event && + !xhci_spurious_success_tx_event(xhci, ep_ring)) { + xhci_warn(xhci, "Event TRB for slot %u ep %u with no TDs queued\n", + slot_id, ep_index); } + ep->skip = false; + goto check_endpoint_halted; + } + + do { td = list_first_entry(&ep_ring->td_list, struct xhci_td, td_list); - if (ep->skip) - td_num--; /* Is this a TRB in the currently executing TD? */ - ep_seg = trb_in_td(xhci, td->start_seg, td->first_trb, - td->last_trb, ep_trb_dma, false); - - /* - * Skip the Force Stopped Event. The event_trb(event_dma) of FSE - * is not in the current TD pointed by ep_ring->dequeue because - * that the hardware dequeue pointer still at the previous TRB - * of the current TD. The previous TRB maybe a Link TD or the - * last TRB of the previous TD. The command completion handle - * will take care the rest. - */ - if (!ep_seg && (trb_comp_code == COMP_STOPPED || - trb_comp_code == COMP_STOPPED_LENGTH_INVALID)) { - goto cleanup; - } + ep_seg = trb_in_td(td, ep_trb_dma); if (!ep_seg) { if (ep->skip && usb_endpoint_xfer_isoc(&td->urb->ep->desc)) { + /* this event is unlikely to match any TD, don't skip them all */ + if (trb_comp_code == COMP_STOPPED_LENGTH_INVALID) + return 0; + skip_isoc_td(xhci, td, ep, status); - goto cleanup; + + if (!list_empty(&ep_ring->td_list)) { + if (ring_xrun_event) { + /* + * If we are here, we are on xHCI 1.0 host with no + * idea how many TDs were missed or where the xrun + * occurred. New TDs may have been added after the + * xrun, so skip only one TD to be safe. + */ + xhci_dbg(xhci, "Skipped one TD for slot %u ep %u", + slot_id, ep_index); + return 0; + } + continue; + } + + xhci_dbg(xhci, "All TDs skipped for slot %u ep %u. Clear skip flag.\n", + slot_id, ep_index); + ep->skip = false; + td = NULL; + goto check_endpoint_halted; } + /* TD was queued after xrun, maybe xrun was on a link, don't panic yet */ + if (ring_xrun_event) + return 0; + /* - * Some hosts give a spurious success event after a short - * transfer. Ignore it. + * Skip the Force Stopped Event. The 'ep_trb' of FSE is not in the current + * TD pointed by 'ep_ring->dequeue' because that the hardware dequeue + * pointer still at the previous TRB of the current TD. The previous TRB + * maybe a Link TD or the last TRB of the previous TD. The command + * completion handle will take care the rest. */ - if ((xhci->quirks & XHCI_SPURIOUS_SUCCESS) && - ep_ring->last_td_was_short) { - ep_ring->last_td_was_short = false; - goto cleanup; + if (trb_comp_code == COMP_STOPPED || + trb_comp_code == COMP_STOPPED_LENGTH_INVALID) { + return 0; } /* - * xhci 4.10.2 states isoc endpoints should continue - * processing the next TD if there was an error mid TD. - * So host like NEC don't generate an event for the last - * isoc TRB even if the IOC flag is set. - * xhci 4.9.1 states that if there are errors in mult-TRB - * TDs xHC should generate an error for that TRB, and if xHC - * proceeds to the next TD it should genete an event for - * any TRB with IOC flag on the way. Other host follow this. - * So this event might be for the next TD. + * Some hosts give a spurious success event after a short + * transfer or error on last TRB. Ignore it. */ - if (td->error_mid_td && - !list_is_last(&td->td_list, &ep_ring->td_list)) { - struct xhci_td *td_next = list_next_entry(td, td_list); - - ep_seg = trb_in_td(xhci, td_next->start_seg, td_next->first_trb, - td_next->last_trb, ep_trb_dma, false); - if (ep_seg) { - /* give back previous TD, start handling new */ - xhci_dbg(xhci, "Missing TD completion event after mid TD error\n"); - ep_ring->dequeue = td->last_trb; - ep_ring->deq_seg = td->last_trb_seg; - inc_deq(xhci, ep_ring); - xhci_td_cleanup(xhci, td, ep_ring, td->status); - td = td_next; - } + if (xhci_spurious_success_tx_event(xhci, ep_ring)) { + xhci_dbg(xhci, "Spurious event dma %pad, comp_code %u after %u\n", + &ep_trb_dma, trb_comp_code, ep_ring->old_trb_comp_code); + ep_ring->old_trb_comp_code = 0; + return 0; } - if (!ep_seg) { - /* HC is busted, give up! */ - xhci_err(xhci, - "ERROR Transfer event TRB DMA ptr not " - "part of current TD ep_index %d " - "comp_code %u\n", ep_index, - trb_comp_code); - trb_in_td(xhci, td->start_seg, td->first_trb, - td->last_trb, ep_trb_dma, true); - return -ESHUTDOWN; - } + /* HC is busted, give up! */ + goto debug_finding_td; } - if (trb_comp_code == COMP_SHORT_PACKET) - ep_ring->last_td_was_short = true; - else - ep_ring->last_td_was_short = false; if (ep->skip) { xhci_dbg(xhci, @@ -2913,53 +2927,61 @@ static int handle_tx_event(struct xhci_hcd *xhci, ep->skip = false; } - ep_trb = &ep_seg->trbs[(ep_trb_dma - ep_seg->dma) / - sizeof(*ep_trb)]; - - trace_xhci_handle_transfer(ep_ring, - (struct xhci_generic_trb *) ep_trb); - - /* - * No-op TRB could trigger interrupts in a case where - * a URB was killed and a STALL_ERROR happens right - * after the endpoint ring stopped. Reset the halted - * endpoint. Otherwise, the endpoint remains stalled - * indefinitely. - */ - - if (trb_is_noop(ep_trb)) { - if (trb_comp_code == COMP_STALL_ERROR || - xhci_requires_manual_halt_cleanup(xhci, ep_ctx, - trb_comp_code)) - xhci_handle_halted_endpoint(xhci, ep, td, - EP_HARD_RESET); - goto cleanup; - } - - td->status = status; - - /* update the urb's actual_length and give back to the core */ - if (usb_endpoint_xfer_control(&td->urb->ep->desc)) - process_ctrl_td(xhci, ep, ep_ring, td, ep_trb, event); - else if (usb_endpoint_xfer_isoc(&td->urb->ep->desc)) - process_isoc_td(xhci, ep, ep_ring, td, ep_trb, event); - else - process_bulk_intr_td(xhci, ep, ep_ring, td, ep_trb, event); -cleanup: - handling_skipped_tds = ep->skip && - trb_comp_code != COMP_MISSED_SERVICE_ERROR && - trb_comp_code != COMP_NO_PING_RESPONSE_ERROR; - /* * If ep->skip is set, it means there are missed tds on the * endpoint ring need to take care of. * Process them as short transfer until reach the td pointed by * the event. */ - } while (handling_skipped_tds); + } while (ep->skip); + + ep_ring->old_trb_comp_code = trb_comp_code; + + /* Get out if a TD was queued at enqueue after the xrun occurred */ + if (ring_xrun_event) + return 0; + + ep_trb = &ep_seg->trbs[(ep_trb_dma - ep_seg->dma) / sizeof(*ep_trb)]; + trace_xhci_handle_transfer(ep_ring, (struct xhci_generic_trb *) ep_trb, ep_trb_dma); + + /* + * No-op TRB could trigger interrupts in a case where a URB was killed + * and a STALL_ERROR happens right after the endpoint ring stopped. + * Reset the halted endpoint. Otherwise, the endpoint remains stalled + * indefinitely. + */ + + if (trb_is_noop(ep_trb)) + goto check_endpoint_halted; + + td->status = status; + + /* update the urb's actual_length and give back to the core */ + if (usb_endpoint_xfer_control(&td->urb->ep->desc)) + process_ctrl_td(xhci, ep, ep_ring, td, ep_trb, event); + else if (usb_endpoint_xfer_isoc(&td->urb->ep->desc)) + process_isoc_td(xhci, ep, ep_ring, td, ep_trb, event); + else + process_bulk_intr_td(xhci, ep, ep_ring, td, ep_trb, event); + return 0; + +check_endpoint_halted: + if (xhci_halted_host_endpoint(ep_ctx, trb_comp_code)) + xhci_handle_halted_endpoint(xhci, ep, td, EP_HARD_RESET); return 0; +debug_finding_td: + xhci_err(xhci, "Event dma %pad for ep %d status %d not part of TD at %016llx - %016llx\n", + &ep_trb_dma, ep_index, trb_comp_code, + (unsigned long long)xhci_trb_virt_to_dma(td->start_seg, td->start_trb), + (unsigned long long)xhci_trb_virt_to_dma(td->end_seg, td->end_trb)); + + xhci_for_each_ring_seg(ep_ring->first_seg, ep_seg) + xhci_warn(xhci, "Ring seg %u dma %pad\n", ep_seg->num, &ep_seg->dma); + + return -ESHUTDOWN; + err_out: xhci_err(xhci, "@%016llx %08x %08x %08x %08x\n", (unsigned long long) xhci_trb_virt_to_dma( @@ -2981,7 +3003,9 @@ static int xhci_handle_event_trb(struct xhci_hcd *xhci, struct xhci_interrupter { u32 trb_type; - trace_xhci_handle_event(ir->event_ring, &event->generic); + trace_xhci_handle_event(ir->event_ring, &event->generic, + xhci_trb_virt_to_dma(ir->event_ring->deq_seg, + ir->event_ring->dequeue)); /* * Barrier between reading the TRB_CYCLE (valid) flag before, and any @@ -2996,7 +3020,7 @@ static int xhci_handle_event_trb(struct xhci_hcd *xhci, struct xhci_interrupter handle_cmd_completion(xhci, &event->event_cmd); break; case TRB_PORT_STATUS: - handle_port_status(xhci, ir, event); + handle_port_status(xhci, event); break; case TRB_TRANSFER: handle_tx_event(xhci, ir, &event->trans_event); @@ -3056,8 +3080,7 @@ static void xhci_update_erst_dequeue(struct xhci_hcd *xhci, } /* Clear the interrupt pending bit for a specific interrupter. */ -static void xhci_clear_interrupt_pending(struct xhci_hcd *xhci, - struct xhci_interrupter *ir) +static void xhci_clear_interrupt_pending(struct xhci_interrupter *ir) { if (!ir->ip_autoclear) { u32 irq_pending; @@ -3078,7 +3101,7 @@ static int xhci_handle_events(struct xhci_hcd *xhci, struct xhci_interrupter *ir int err; u64 temp; - xhci_clear_interrupt_pending(xhci, ir); + xhci_clear_interrupt_pending(ir); /* Event ring hasn't been allocated yet. */ if (!ir->event_ring || !ir->event_ring->dequeue) { @@ -3205,7 +3228,8 @@ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring, wmb(); trb->field[3] = cpu_to_le32(field4); - trace_xhci_queue_trb(ring, trb); + trace_xhci_queue_trb(ring, trb, + xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue)); inc_enq(xhci, ring, more_trbs_coming); } @@ -3217,7 +3241,6 @@ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring, static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, u32 ep_state, unsigned int num_trbs, gfp_t mem_flags) { - unsigned int link_trb_count = 0; unsigned int new_segs = 0; /* Make sure the endpoint has been added to xHC schedule */ @@ -3251,7 +3274,7 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, if (ep_ring != xhci->cmd_ring) { new_segs = xhci_ring_expansion_needed(xhci, ep_ring, num_trbs); - } else if (xhci_num_trbs_free(xhci, ep_ring) <= num_trbs) { + } else if (xhci_num_trbs_free(ep_ring) <= num_trbs) { xhci_err(xhci, "Do not support expand command ring\n"); return -ENOMEM; } @@ -3265,35 +3288,9 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, } } - while (trb_is_link(ep_ring->enqueue)) { - /* If we're not dealing with 0.95 hardware or isoc rings - * on AMD 0.96 host, clear the chain bit. - */ - if (!xhci_link_trb_quirk(xhci) && - !(ep_ring->type == TYPE_ISOC && - (xhci->quirks & XHCI_AMD_0x96_HOST))) - ep_ring->enqueue->link.control &= - cpu_to_le32(~TRB_CHAIN); - else - ep_ring->enqueue->link.control |= - cpu_to_le32(TRB_CHAIN); - - wmb(); - ep_ring->enqueue->link.control ^= cpu_to_le32(TRB_CYCLE); - - /* Toggle the cycle bit after the last ring segment. */ - if (link_trb_toggles_cycle(ep_ring->enqueue)) - ep_ring->cycle_state ^= 1; - - ep_ring->enq_seg = ep_ring->enq_seg->next; - ep_ring->enqueue = ep_ring->enq_seg->trbs; - - /* prevent infinite loop if all first trbs are link trbs */ - if (link_trb_count++ > ep_ring->num_segs) { - xhci_warn(xhci, "Ring is an endless link TRB loop\n"); - return -EINVAL; - } - } + /* Ensure that new TRBs won't overwrite a link */ + if (trb_is_link(ep_ring->enqueue)) + inc_enq_past_link(xhci, ep_ring, 0); if (last_trb_on_seg(ep_ring->enq_seg, ep_ring->enqueue)) { xhci_warn(xhci, "Missing link TRB at end of ring segment\n"); @@ -3347,7 +3344,7 @@ static int prepare_transfer(struct xhci_hcd *xhci, /* Add this TD to the tail of the endpoint ring's TD list */ list_add_tail(&td->td_list, &ep_ring->td_list); td->start_seg = ep_ring->enq_seg; - td->first_trb = ep_ring->enqueue; + td->start_trb = ep_ring->enqueue; return 0; } @@ -3426,8 +3423,7 @@ static void giveback_first_trb(struct xhci_hcd *xhci, int slot_id, xhci_ring_ep_doorbell(xhci, slot_id, ep_index, stream_id); } -static void check_interval(struct xhci_hcd *xhci, struct urb *urb, - struct xhci_ep_ctx *ep_ctx) +static void check_interval(struct urb *urb, struct xhci_ep_ctx *ep_ctx) { int xhci_interval; int ep_interval; @@ -3446,8 +3442,8 @@ static void check_interval(struct xhci_hcd *xhci, struct urb *urb, if (xhci_interval != ep_interval) { dev_dbg_ratelimited(&urb->dev->dev, "Driver uses different interval (%d microframe%s) than xHCI (%d microframe%s)\n", - ep_interval, ep_interval == 1 ? "" : "s", - xhci_interval, xhci_interval == 1 ? "" : "s"); + ep_interval, str_plural(ep_interval), + xhci_interval, str_plural(xhci_interval)); urb->interval = xhci_interval; /* Convert back to frames for LS/FS devices */ if (urb->dev->speed == USB_SPEED_LOW || @@ -3468,7 +3464,7 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct xhci_ep_ctx *ep_ctx; ep_ctx = xhci_get_ep_ctx(xhci, xhci->devs[slot_id]->out_ctx, ep_index); - check_interval(xhci, urb, ep_ctx); + check_interval(urb, ep_ctx); return xhci_queue_bulk_tx(xhci, mem_flags, urb, slot_id, ep_index); } @@ -3687,8 +3683,8 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, field &= ~TRB_CHAIN; field |= TRB_IOC; more_trbs_coming = false; - td->last_trb = ring->enqueue; - td->last_trb_seg = ring->enq_seg; + td->end_trb = ring->enqueue; + td->end_seg = ring->enq_seg; if (xhci_urb_suitable_for_idt(urb)) { memcpy(&send_addr, urb->transfer_buffer, trb_buff_len); @@ -3714,7 +3710,6 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, upper_32_bits(send_addr), length_field, field); - td->num_trbs++; addr += trb_buff_len; sent_len = trb_buff_len; @@ -3737,11 +3732,10 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, ret = prepare_transfer(xhci, xhci->devs[slot_id], ep_index, urb->stream_id, 1, urb, 1, mem_flags); - urb_priv->td[1].last_trb = ring->enqueue; - urb_priv->td[1].last_trb_seg = ring->enq_seg; + urb_priv->td[1].end_trb = ring->enqueue; + urb_priv->td[1].end_seg = ring->enq_seg; field = TRB_TYPE(TRB_NORMAL) | ring->cycle_state | TRB_IOC; queue_trb(xhci, ring, 0, 0, 0, TRB_INTR_TARGET(0), field); - urb_priv->td[1].num_trbs++; } check_trb_math(urb, enqd_len); @@ -3775,6 +3769,20 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, if (!urb->setup_packet) return -EINVAL; + if ((xhci->quirks & XHCI_ETRON_HOST) && + urb->dev->speed >= USB_SPEED_SUPER) { + /* + * If next available TRB is the Link TRB in the ring segment then + * enqueue a No Op TRB, this can prevent the Setup and Data Stage + * TRB to be breaked by the Link TRB. + */ + if (last_trb_on_seg(ep_ring->enq_seg, ep_ring->enqueue + 1)) { + field = TRB_TYPE(TRB_TR_NOOP) | ep_ring->cycle_state; + queue_trb(xhci, ep_ring, false, 0, 0, + TRB_INTR_TARGET(0), field); + } + } + /* 1 TRB for setup, 1 for status */ num_trbs = 2; /* @@ -3792,7 +3800,6 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, urb_priv = urb->hcpriv; td = &urb_priv->td[0]; - td->num_trbs = num_trbs; /* * Don't give the first TRB to the hardware (by toggling the cycle bit) @@ -3864,8 +3871,8 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, } /* Save the DMA address of the last TRB in the TD */ - td->last_trb = ep_ring->enqueue; - td->last_trb_seg = ep_ring->enq_seg; + td->end_trb = ep_ring->enqueue; + td->end_seg = ep_ring->enq_seg; /* Queue status TRB - see Table 7 and sections 4.11.2.2 and 6.4.1.2.3 */ /* If the device sent data, the status stage is an OUT transfer */ @@ -3990,10 +3997,6 @@ static int xhci_get_isoc_frame_id(struct xhci_hcd *xhci, start_frame_id = (start_frame_id >> 3) & 0x7ff; end_frame_id = (end_frame_id >> 3) & 0x7ff; - xhci_dbg(xhci, "%s: index %d, reg 0x%x start_frame_id 0x%x, end_frame_id 0x%x, start_frame 0x%x\n", - __func__, index, readl(&xhci->run_regs->microframe_index), - start_frame_id, end_frame_id, start_frame); - if (start_frame_id < end_frame_id) { if (start_frame > end_frame_id || start_frame < start_frame_id) @@ -4113,7 +4116,6 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, goto cleanup; } td = &urb_priv->td[i]; - td->num_trbs = trbs_per_td; /* use SIA as default, if frame id is used overwrite it */ sia_frame_id = TRB_SIA; if (!(urb->transfer_flags & URB_ISO_ASAP) && @@ -4155,8 +4157,8 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, field |= TRB_CHAIN; } else { more_trbs_coming = false; - td->last_trb = ep_ring->enqueue; - td->last_trb_seg = ep_ring->enq_seg; + td->end_trb = ep_ring->enqueue; + td->end_seg = ep_ring->enq_seg; field |= TRB_IOC; if (trb_block_event_intr(xhci, num_tds, i, ir)) field |= TRB_BEI; @@ -4222,14 +4224,14 @@ cleanup: /* Use the first TD as a temporary variable to turn the TDs we've queued * into No-ops with a software-owned cycle bit. That way the hardware * won't accidentally start executing bogus TDs when we partially - * overwrite them. td->first_trb and td->start_seg are already set. + * overwrite them. td->start_trb and td->start_seg are already set. */ - urb_priv->td[0].last_trb = ep_ring->enqueue; + urb_priv->td[0].end_trb = ep_ring->enqueue; /* Every TRB except the first & last will have its cycle bit flipped. */ - td_to_noop(xhci, ep_ring, &urb_priv->td[0], true); + td_to_noop(&urb_priv->td[0], true); /* Reset the ring enqueue back to the first TRB and its cycle bit. */ - ep_ring->enqueue = urb_priv->td[0].first_trb; + ep_ring->enqueue = urb_priv->td[0].start_trb; ep_ring->enq_seg = urb_priv->td[0].start_seg; ep_ring->cycle_state = start_cycle; usb_hcd_unlink_urb_from_ep(bus_to_hcd(urb->dev->bus), urb); @@ -4277,7 +4279,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, * Check interval value. This should be done before we start to * calculate the start frame value. */ - check_interval(xhci, urb, ep_ctx); + check_interval(urb, ep_ctx); /* Calculate the start frame and put it in urb->start_frame. */ if (HCC_CFC(xhci->hcc_params) && !list_empty(&ep_ring->td_list)) { @@ -4430,7 +4432,7 @@ int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, struct xhci_command *cmd, int slot_id, unsigned int ep_index, int suspend) { u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id); - u32 trb_ep_index = EP_ID_FOR_TRB(ep_index); + u32 trb_ep_index = EP_INDEX_FOR_TRB(ep_index); u32 type = TRB_TYPE(TRB_STOP_RING); u32 trb_suspend = SUSPEND_PORT_FOR_TRB(suspend); @@ -4443,7 +4445,7 @@ int xhci_queue_reset_ep(struct xhci_hcd *xhci, struct xhci_command *cmd, enum xhci_ep_reset_type reset_type) { u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id); - u32 trb_ep_index = EP_ID_FOR_TRB(ep_index); + u32 trb_ep_index = EP_INDEX_FOR_TRB(ep_index); u32 type = TRB_TYPE(TRB_RESET_EP); if (reset_type == EP_SOFT_RESET) diff --git a/drivers/usb/host/xhci-rzv2m.c b/drivers/usb/host/xhci-rzv2m.c index ec65b24eafa8..4f59867d7117 100644 --- a/drivers/usb/host/xhci-rzv2m.c +++ b/drivers/usb/host/xhci-rzv2m.c @@ -6,6 +6,7 @@ */ #include <linux/usb/rzv2m_usb3drd.h> +#include "xhci.h" #include "xhci-plat.h" #include "xhci-rzv2m.h" diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index 6246d5ad1468..0c7af44d4dae 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -26,6 +26,7 @@ #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/usb/otg.h> #include <linux/usb/phy.h> #include <linux/usb/role.h> @@ -724,7 +725,7 @@ static void tegra_xusb_mbox_handle(struct tegra_xusb *tegra, if (err < 0) { dev_err(dev, "failed to %s LFPS detection on USB3#%u: %d\n", - enable ? "enable" : "disable", port, err); + str_enable_disable(enable), port, err); rsp.cmd = MBOX_CMD_NAK; } else { rsp.cmd = MBOX_CMD_ACK; @@ -1349,7 +1350,7 @@ static void tegra_xhci_id_work(struct work_struct *work) u32 status; int ret; - dev_dbg(tegra->dev, "host mode %s\n", tegra->host_mode ? "on" : "off"); + dev_dbg(tegra->dev, "host mode %s\n", str_on_off(tegra->host_mode)); mutex_lock(&tegra->lock); @@ -1363,6 +1364,7 @@ static void tegra_xhci_id_work(struct work_struct *work) tegra->otg_usb3_port = tegra_xusb_padctl_get_usb3_companion(tegra->padctl, tegra->otg_usb2_port); + pm_runtime_get_sync(tegra->dev); if (tegra->host_mode) { /* switch to host mode */ if (tegra->otg_usb3_port >= 0) { @@ -1392,6 +1394,7 @@ static void tegra_xhci_id_work(struct work_struct *work) } tegra_xhci_set_port_power(tegra, true, true); + pm_runtime_mark_last_busy(tegra->dev); } else { if (tegra->otg_usb3_port >= 0) @@ -1399,6 +1402,7 @@ static void tegra_xhci_id_work(struct work_struct *work) tegra_xhci_set_port_power(tegra, true, false); } + pm_runtime_put_autosuspend(tegra->dev); } #if IS_ENABLED(CONFIG_PM) || IS_ENABLED(CONFIG_PM_SLEEP) @@ -1667,7 +1671,7 @@ static int tegra_xusb_probe(struct platform_device *pdev) goto put_padctl; } - if (!of_property_read_bool(pdev->dev.of_node, "power-domains")) { + if (!of_property_present(pdev->dev.of_node, "power-domains")) { tegra->host_rst = devm_reset_control_get(&pdev->dev, "xusb_host"); if (IS_ERR(tegra->host_rst)) { @@ -2161,11 +2165,11 @@ static void tegra_xhci_program_utmi_power_lp0_exit(struct tegra_xusb *tegra) } } -static int tegra_xusb_enter_elpg(struct tegra_xusb *tegra, bool runtime) +static int tegra_xusb_enter_elpg(struct tegra_xusb *tegra, bool is_auto_resume) { struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); struct device *dev = tegra->dev; - bool wakeup = runtime ? true : device_may_wakeup(dev); + bool wakeup = is_auto_resume ? true : device_may_wakeup(dev); unsigned int i; int err; u32 usbcmd; @@ -2183,7 +2187,7 @@ static int tegra_xusb_enter_elpg(struct tegra_xusb *tegra, bool runtime) goto out; } - for (i = 0; i < tegra->num_usb_phys; i++) { + for (i = 0; i < xhci->usb2_rhub.num_ports; i++) { if (!xhci->usb2_rhub.ports[i]) continue; portsc = readl(xhci->usb2_rhub.ports[i]->addr); @@ -2231,11 +2235,11 @@ out: return err; } -static int tegra_xusb_exit_elpg(struct tegra_xusb *tegra, bool runtime) +static int tegra_xusb_exit_elpg(struct tegra_xusb *tegra, bool is_auto_resume) { struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); struct device *dev = tegra->dev; - bool wakeup = runtime ? true : device_may_wakeup(dev); + bool wakeup = is_auto_resume ? true : device_may_wakeup(dev); unsigned int i; u32 usbcmd; int err; @@ -2286,7 +2290,7 @@ static int tegra_xusb_exit_elpg(struct tegra_xusb *tegra, bool runtime) if (wakeup) tegra_xhci_disable_phy_sleepwalk(tegra); - err = xhci_resume(xhci, runtime ? PMSG_AUTO_RESUME : PMSG_RESUME); + err = xhci_resume(xhci, false, is_auto_resume); if (err < 0) { dev_err(tegra->dev, "failed to resume XHCI: %d\n", err); goto disable_phy; @@ -2664,7 +2668,7 @@ MODULE_DEVICE_TABLE(of, tegra_xusb_of_match); static struct platform_driver tegra_xusb_driver = { .probe = tegra_xusb_probe, - .remove_new = tegra_xusb_remove, + .remove = tegra_xusb_remove, .shutdown = tegra_xusb_shutdown, .driver = { .name = "tegra-xusb", diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index 5762564b9d73..bfb5c5c17012 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -108,9 +108,10 @@ DEFINE_EVENT(xhci_log_ctx, xhci_address_ctx, ); DECLARE_EVENT_CLASS(xhci_log_trb, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb), + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma), TP_STRUCT__entry( + __field(dma_addr_t, dma) __field(u32, type) __field(u32, field0) __field(u32, field1) @@ -118,51 +119,54 @@ DECLARE_EVENT_CLASS(xhci_log_trb, __field(u32, field3) ), TP_fast_assign( + __entry->dma = dma; __entry->type = ring->type; __entry->field0 = le32_to_cpu(trb->field[0]); __entry->field1 = le32_to_cpu(trb->field[1]); __entry->field2 = le32_to_cpu(trb->field[2]); __entry->field3 = le32_to_cpu(trb->field[3]); ), - TP_printk("%s: %s", xhci_ring_type_string(__entry->type), + TP_printk("%s: @%pad %s", + xhci_ring_type_string(__entry->type), &__entry->dma, xhci_decode_trb(__get_buf(XHCI_MSG_MAX), XHCI_MSG_MAX, __entry->field0, __entry->field1, __entry->field2, __entry->field3) ) ); DEFINE_EVENT(xhci_log_trb, xhci_handle_event, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) ); DEFINE_EVENT(xhci_log_trb, xhci_handle_command, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) ); DEFINE_EVENT(xhci_log_trb, xhci_handle_transfer, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) ); DEFINE_EVENT(xhci_log_trb, xhci_queue_trb, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) + ); DEFINE_EVENT(xhci_log_trb, xhci_dbc_handle_event, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) ); DEFINE_EVENT(xhci_log_trb, xhci_dbc_handle_transfer, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) ); DEFINE_EVENT(xhci_log_trb, xhci_dbc_gadget_ep_queue, - TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb), - TP_ARGS(ring, trb) + TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb, dma_addr_t dma), + TP_ARGS(ring, trb, dma) ); DECLARE_EVENT_CLASS(xhci_log_free_virt_dev, @@ -250,6 +254,7 @@ DECLARE_EVENT_CLASS(xhci_log_urb, TP_PROTO(struct urb *urb), TP_ARGS(urb), TP_STRUCT__entry( + __string(devname, dev_name(&urb->dev->dev)) __field(void *, urb) __field(unsigned int, pipe) __field(unsigned int, stream) @@ -265,6 +270,7 @@ DECLARE_EVENT_CLASS(xhci_log_urb, __field(int, slot_id) ), TP_fast_assign( + __assign_str(devname); __entry->urb = urb; __entry->pipe = urb->pipe; __entry->stream = urb->stream_id; @@ -279,7 +285,8 @@ DECLARE_EVENT_CLASS(xhci_log_urb, __entry->type = usb_endpoint_type(&urb->ep->desc); __entry->slot_id = urb->dev->slot_id; ), - TP_printk("ep%d%s-%s: urb %p pipe %u slot %d length %d/%d sgs %d/%d stream %d flags %08x", + TP_printk("%s ep%d%s-%s: urb %p pipe %u slot %d length %d/%d sgs %d/%d stream %d flags %08x", + __get_str(devname), __entry->epnum, __entry->dir_in ? "in" : "out", __print_symbolic(__entry->type, { USB_ENDPOINT_XFER_INT, "intr" }, @@ -307,6 +314,37 @@ DEFINE_EVENT(xhci_log_urb, xhci_urb_dequeue, TP_ARGS(urb) ); +DECLARE_EVENT_CLASS(xhci_log_stream_ctx, + TP_PROTO(struct xhci_stream_info *info, unsigned int stream_id), + TP_ARGS(info, stream_id), + TP_STRUCT__entry( + __field(unsigned int, stream_id) + __field(u64, stream_ring) + __field(dma_addr_t, ctx_array_dma) + + ), + TP_fast_assign( + __entry->stream_id = stream_id; + __entry->stream_ring = le64_to_cpu(info->stream_ctx_array[stream_id].stream_ring); + __entry->ctx_array_dma = info->ctx_array_dma + stream_id * 16; + + ), + TP_printk("stream %u ctx @%pad: SCT %llu deq %llx", __entry->stream_id, + &__entry->ctx_array_dma, CTX_TO_SCT(__entry->stream_ring), + __entry->stream_ring + ) +); + +DEFINE_EVENT(xhci_log_stream_ctx, xhci_alloc_stream_info_ctx, + TP_PROTO(struct xhci_stream_info *info, unsigned int stream_id), + TP_ARGS(info, stream_id) +); + +DEFINE_EVENT(xhci_log_stream_ctx, xhci_handle_cmd_set_deq_stream, + TP_PROTO(struct xhci_stream_info *info, unsigned int stream_id), + TP_ARGS(info, stream_id) +); + DECLARE_EVENT_CLASS(xhci_log_ep_ctx, TP_PROTO(struct xhci_ep_ctx *ctx), TP_ARGS(ctx), @@ -451,8 +489,6 @@ DECLARE_EVENT_CLASS(xhci_log_ring, __field(void *, ring) __field(dma_addr_t, enq) __field(dma_addr_t, deq) - __field(dma_addr_t, enq_seg) - __field(dma_addr_t, deq_seg) __field(unsigned int, num_segs) __field(unsigned int, stream_id) __field(unsigned int, cycle_state) @@ -463,17 +499,15 @@ DECLARE_EVENT_CLASS(xhci_log_ring, __entry->type = ring->type; __entry->num_segs = ring->num_segs; __entry->stream_id = ring->stream_id; - __entry->enq_seg = ring->enq_seg->dma; - __entry->deq_seg = ring->deq_seg->dma; __entry->cycle_state = ring->cycle_state; __entry->bounce_buf_len = ring->bounce_buf_len; __entry->enq = xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue); __entry->deq = xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue); ), - TP_printk("%s %p: enq %pad(%pad) deq %pad(%pad) segs %d stream %d bounce %d cycle %d", + TP_printk("%s %p: enq %pad deq %pad segs %d stream %d bounce %d cycle %d", xhci_ring_type_string(__entry->type), __entry->ring, - &__entry->enq, &__entry->enq_seg, - &__entry->deq, &__entry->deq_seg, + &__entry->enq, + &__entry->deq, __entry->num_segs, __entry->stream_id, __entry->bounce_buf_len, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8579603edaff..90eb491267b5 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -8,6 +8,7 @@ * Some code borrowed from the Linux EHCI driver. */ +#include <linux/jiffies.h> #include <linux/pci.h> #include <linux/iommu.h> #include <linux/iopoll.h> @@ -16,6 +17,7 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/dmi.h> #include <linux/dma-mapping.h> @@ -40,15 +42,15 @@ MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default"); static bool td_on_ring(struct xhci_td *td, struct xhci_ring *ring) { - struct xhci_segment *seg = ring->first_seg; + struct xhci_segment *seg; if (!td || !td->start_seg) return false; - do { + + xhci_for_each_ring_seg(ring->first_seg, seg) { if (seg == td->start_seg) return true; - seg = seg->next; - } while (seg && seg != ring->first_seg); + } return false; } @@ -320,7 +322,7 @@ static void xhci_zero_64b_regs(struct xhci_hcd *xhci) xhci_info(xhci, "Fault detected\n"); } -static int xhci_enable_interrupter(struct xhci_interrupter *ir) +int xhci_enable_interrupter(struct xhci_interrupter *ir) { u32 iman; @@ -333,7 +335,7 @@ static int xhci_enable_interrupter(struct xhci_interrupter *ir) return 0; } -static int xhci_disable_interrupter(struct xhci_interrupter *ir) +int xhci_disable_interrupter(struct xhci_interrupter *ir) { u32 iman; @@ -347,8 +349,8 @@ static int xhci_disable_interrupter(struct xhci_interrupter *ir) } /* interrupt moderation interval imod_interval in nanoseconds */ -static int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, - u32 imod_interval) +int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, + u32 imod_interval) { u32 imod; @@ -473,14 +475,7 @@ static int xhci_init(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_init"); spin_lock_init(&xhci->lock); - if (xhci->hci_version == 0x95 && link_quirk) { - xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, - "QUIRK: Not clearing Link TRB chain bits."); - xhci->quirks |= XHCI_LINK_TRB_QUIRK; - } else { - xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "xHCI doesn't need link TRB QUIRK"); - } + retval = xhci_mem_init(xhci, GFP_KERNEL); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Finished xhci_init"); @@ -632,7 +627,7 @@ void xhci_stop(struct usb_hcd *hcd) /* Deleting Compliance Mode Recovery Timer */ if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && (!(xhci_all_ports_seen_u0(xhci)))) { - del_timer_sync(&xhci->comp_mode_recovery_timer); + timer_delete_sync(&xhci->comp_mode_recovery_timer); xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, "%s: compliance mode recovery timer deleted", __func__); @@ -677,11 +672,11 @@ void xhci_shutdown(struct usb_hcd *hcd) xhci_dbg(xhci, "%s: stopping usb%d port polling.\n", __func__, hcd->self.busnum); clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); if (xhci->shared_hcd) { clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); - del_timer_sync(&xhci->shared_hcd->rh_timer); + timer_delete_sync(&xhci->shared_hcd->rh_timer); } spin_lock_irq(&xhci->lock); @@ -785,16 +780,14 @@ static void xhci_clear_command_ring(struct xhci_hcd *xhci) struct xhci_segment *seg; ring = xhci->cmd_ring; - seg = ring->deq_seg; - do { - memset(seg->trbs, 0, - sizeof(union xhci_trb) * (TRBS_PER_SEGMENT - 1)); - seg->trbs[TRBS_PER_SEGMENT - 1].link.control &= - cpu_to_le32(~TRB_CYCLE); - seg = seg->next; - } while (seg != ring->deq_seg); - - xhci_initialize_ring_info(ring, 1); + xhci_for_each_ring_seg(ring->first_seg, seg) { + /* erase all TRBs before the link */ + memset(seg->trbs, 0, sizeof(union xhci_trb) * (TRBS_PER_SEGMENT - 1)); + /* clear link cycle bit */ + seg->trbs[TRBS_PER_SEGMENT - 1].link.control &= cpu_to_le32(~TRB_CYCLE); + } + + xhci_initialize_ring_info(ring); /* * Reset the hardware dequeue pointer. * Yes, this will need to be re-written after resume, but we're paranoid @@ -915,10 +908,10 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) xhci_dbg(xhci, "%s: stopping usb%d port polling.\n", __func__, hcd->self.busnum); clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); - del_timer_sync(&hcd->rh_timer); + timer_delete_sync(&hcd->rh_timer); if (xhci->shared_hcd) { clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); - del_timer_sync(&xhci->shared_hcd->rh_timer); + timer_delete_sync(&xhci->shared_hcd->rh_timer); } if (xhci->quirks & XHCI_SUSPEND_DELAY) @@ -985,7 +978,7 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) */ if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && (!(xhci_all_ports_seen_u0(xhci)))) { - del_timer_sync(&xhci->comp_mode_recovery_timer); + timer_delete_sync(&xhci->comp_mode_recovery_timer); xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, "%s: compliance mode recovery timer deleted", __func__); @@ -1001,16 +994,14 @@ EXPORT_SYMBOL_GPL(xhci_suspend); * This is called when the machine transition from S3/S4 mode. * */ -int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) +int xhci_resume(struct xhci_hcd *xhci, bool power_lost, bool is_auto_resume) { - bool hibernated = (msg.event == PM_EVENT_RESTORE); u32 command, temp = 0; struct usb_hcd *hcd = xhci_to_hcd(xhci); int retval = 0; bool comp_timer_running = false; bool pending_portevent = false; bool suspended_usb3_devs = false; - bool reinit_xhc = false; if (!hcd->state) return 0; @@ -1029,10 +1020,10 @@ int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) spin_lock_irq(&xhci->lock); - if (hibernated || xhci->quirks & XHCI_RESET_ON_RESUME || xhci->broken_suspend) - reinit_xhc = true; + if (xhci->quirks & XHCI_RESET_ON_RESUME || xhci->broken_suspend) + power_lost = true; - if (!reinit_xhc) { + if (!power_lost) { /* * Some controllers might lose power during suspend, so wait * for controller not ready bit to clear, just as in xHC init. @@ -1072,15 +1063,15 @@ int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) /* re-initialize the HC on Restore Error, or Host Controller Error */ if ((temp & (STS_SRE | STS_HCE)) && !(xhci->xhc_state & XHCI_STATE_REMOVING)) { - reinit_xhc = true; - if (!xhci->broken_suspend) + if (!power_lost) xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp); + power_lost = true; } - if (reinit_xhc) { + if (power_lost) { if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !(xhci_all_ports_seen_u0(xhci))) { - del_timer_sync(&xhci->comp_mode_recovery_timer); + timer_delete_sync(&xhci->comp_mode_recovery_timer); xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, "Compliance Mode Recovery Timer deleted!"); } @@ -1125,10 +1116,20 @@ int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) xhci_dbg(xhci, "Start the secondary HCD\n"); retval = xhci_run(xhci->shared_hcd); } - + if (retval) + return retval; + /* + * Resume roothubs unconditionally as PORTSC change bits are not + * immediately visible after xHC reset + */ hcd->state = HC_STATE_SUSPENDED; - if (xhci->shared_hcd) + + if (xhci->shared_hcd) { xhci->shared_hcd->state = HC_STATE_SUSPENDED; + usb_hcd_resume_root_hub(xhci->shared_hcd); + } + usb_hcd_resume_root_hub(hcd); + goto done; } @@ -1152,7 +1153,6 @@ int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) xhci_dbc_resume(xhci); - done: if (retval == 0) { /* * Resume roothubs only if there are pending events. @@ -1166,8 +1166,7 @@ int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) pending_portevent = xhci_pending_portevent(xhci); - if (suspended_usb3_devs && !pending_portevent && - msg.event == PM_EVENT_AUTO_RESUME) { + if (suspended_usb3_devs && !pending_portevent && is_auto_resume) { msleep(120); pending_portevent = xhci_pending_portevent(xhci); } @@ -1178,6 +1177,7 @@ int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) usb_hcd_resume_root_hub(hcd); } } +done: /* * If system is subject to the Quirk, Compliance Mode Timer needs to * be re-initialized Always after a system resume. Ports are subject @@ -1746,7 +1746,7 @@ static int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) urb->ep->desc.bEndpointAddress, (unsigned long long) xhci_trb_virt_to_dma( urb_priv->td[i].start_seg, - urb_priv->td[i].first_trb)); + urb_priv->td[i].start_trb)); for (; i < urb_priv->num_tds; i++) { td = &urb_priv->td[i]; @@ -1758,15 +1758,27 @@ static int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) } } - /* Queue a stop endpoint command, but only if this is - * the first cancellation to be handled. - */ - if (!(ep->ep_state & EP_STOP_CMD_PENDING)) { + /* These completion handlers will sort out cancelled TDs for us */ + if (ep->ep_state & (EP_STOP_CMD_PENDING | EP_HALTED | SET_DEQ_PENDING)) { + xhci_dbg(xhci, "Not queuing Stop Endpoint on slot %d ep %d in state 0x%x\n", + urb->dev->slot_id, ep_index, ep->ep_state); + goto done; + } + + /* In this case no commands are pending but the endpoint is stopped */ + if (ep->ep_state & EP_CLEARING_TT) { + /* and cancelled TDs can be given back right away */ + xhci_dbg(xhci, "Invalidating TDs instantly on slot %d ep %d in state 0x%x\n", + urb->dev->slot_id, ep_index, ep->ep_state); + xhci_process_cancelled_tds(ep); + } else { + /* Otherwise, queue a new Stop Endpoint command */ command = xhci_alloc_command(xhci, false, GFP_ATOMIC); if (!command) { ret = -ENOMEM; goto done; } + ep->stop_time = jiffies; ep->ep_state |= EP_STOP_CMD_PENDING; xhci_queue_stop_endpoint(xhci, command, urb->dev->slot_id, ep_index, 0); @@ -2784,6 +2796,51 @@ static int xhci_reserve_bandwidth(struct xhci_hcd *xhci, return -ENOMEM; } +/* + * Synchronous XHCI stop endpoint helper. Issues the stop endpoint command and + * waits for the command completion before returning. This does not call + * xhci_handle_cmd_stop_ep(), which has additional handling for 'context error' + * cases, along with transfer ring cleanup. + * + * xhci_stop_endpoint_sync() is intended to be utilized by clients that manage + * their own transfer ring, such as offload situations. + */ +int xhci_stop_endpoint_sync(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, int suspend, + gfp_t gfp_flags) +{ + struct xhci_command *command; + unsigned long flags; + int ret; + + command = xhci_alloc_command(xhci, true, gfp_flags); + if (!command) + return -ENOMEM; + + spin_lock_irqsave(&xhci->lock, flags); + ret = xhci_queue_stop_endpoint(xhci, command, ep->vdev->slot_id, + ep->ep_index, suspend); + if (ret < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + goto out; + } + + xhci_ring_cmd_db(xhci); + spin_unlock_irqrestore(&xhci->lock, flags); + + wait_for_completion(command->completion); + + /* No handling for COMP_CONTEXT_STATE_ERROR done at command completion*/ + if (command->status == COMP_COMMAND_ABORTED || + command->status == COMP_COMMAND_RING_STOPPED) { + xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n"); + ret = -ETIME; + } +out: + xhci_free_command(xhci, command); + + return ret; +} +EXPORT_SYMBOL_GPL(xhci_stop_endpoint_sync); /* Issue a configure endpoint command or evaluate context command * and wait for it to finish. @@ -2827,7 +2884,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, xhci->num_active_eps); return -ENOMEM; } - if ((xhci->quirks & XHCI_SW_BW_CHECKING) && + if ((xhci->quirks & XHCI_SW_BW_CHECKING) && !ctx_change && xhci_reserve_bandwidth(xhci, virt_dev, command->in_ctx)) { if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) xhci_free_host_resources(xhci, ctrl_ctx); @@ -3682,6 +3739,8 @@ void xhci_free_device_endpoint_resources(struct xhci_hcd *xhci, xhci->num_active_eps); } +static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev); + /* * This submits a Reset Device Command, which will set the device state to 0, * set the device address to 0, and disable all the endpoints except the default @@ -3752,6 +3811,23 @@ static int xhci_discover_or_reset_device(struct usb_hcd *hcd, SLOT_STATE_DISABLED) return 0; + if (xhci->quirks & XHCI_ETRON_HOST) { + /* + * Obtaining a new device slot to inform the xHCI host that + * the USB device has been reset. + */ + ret = xhci_disable_slot(xhci, udev->slot_id); + xhci_free_virt_device(xhci, udev->slot_id); + if (!ret) { + ret = xhci_alloc_dev(hcd, udev); + if (ret == 1) + ret = 0; + else + ret = -EINVAL; + } + return ret; + } + trace_xhci_discover_or_reset_device(slot_ctx); xhci_dbg(xhci, "Resetting device with slot ID %u\n", slot_id); @@ -4190,8 +4266,10 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, mutex_unlock(&xhci->mutex); ret = xhci_disable_slot(xhci, udev->slot_id); xhci_free_virt_device(xhci, udev->slot_id); - if (!ret) - xhci_alloc_dev(hcd, udev); + if (!ret) { + if (xhci_alloc_dev(hcd, udev) == 1) + xhci_setup_addressable_virt_dev(xhci, udev); + } kfree(command->completion); kfree(command); return -EPROTO; @@ -4447,7 +4525,7 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, hlpm_addr = ports[port_num]->addr + PORTHLPMC; xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n", - enable ? "enable" : "disable", port_num + 1); + str_enable_disable(enable), port_num + 1); if (enable) { /* Host supports BESL timeout instead of HIRD */ @@ -4507,35 +4585,27 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, return 0; } -/* check if a usb2 port supports a given extened capability protocol - * only USB2 ports extended protocol capability values are cached. - * Return 1 if capability is supported - */ -static int xhci_check_usb2_port_capability(struct xhci_hcd *xhci, int port, - unsigned capability) -{ - u32 port_offset, port_count; - int i; - - for (i = 0; i < xhci->num_ext_caps; i++) { - if (xhci->ext_caps[i] & capability) { - /* port offsets starts at 1 */ - port_offset = XHCI_EXT_PORT_OFF(xhci->ext_caps[i]) - 1; - port_count = XHCI_EXT_PORT_COUNT(xhci->ext_caps[i]); - if (port >= port_offset && - port < port_offset + port_count) - return 1; - } - } - return 0; -} - static int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - int portnum = udev->portnum - 1; + struct xhci_port *port; + u32 capability; - if (hcd->speed >= HCD_USB3 || !udev->lpm_capable) + /* Check if USB3 device at root port is tunneled over USB4 */ + if (hcd->speed >= HCD_USB3 && !udev->parent->parent) { + port = xhci->usb3_rhub.ports[udev->portnum - 1]; + + udev->tunnel_mode = xhci_port_is_tunneled(xhci, port); + if (udev->tunnel_mode == USB_LINK_UNKNOWN) + dev_dbg(&udev->dev, "link tunnel state unknown\n"); + else if (udev->tunnel_mode == USB_LINK_TUNNELED) + dev_dbg(&udev->dev, "tunneled over USB4 link\n"); + else if (udev->tunnel_mode == USB_LINK_NATIVE) + dev_dbg(&udev->dev, "native USB 3.x link\n"); + return 0; + } + + if (hcd->speed >= HCD_USB3 || !udev->lpm_capable || !xhci->hw_lpm_support) return 0; /* we only support lpm for non-hub device connected to root hub yet */ @@ -4543,14 +4613,14 @@ static int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) udev->descriptor.bDeviceClass == USB_CLASS_HUB) return 0; - if (xhci->hw_lpm_support == 1 && - xhci_check_usb2_port_capability( - xhci, portnum, XHCI_HLC)) { + port = xhci->usb2_rhub.ports[udev->portnum - 1]; + capability = port->port_cap->protocol_caps; + + if (capability & XHCI_HLC) { udev->usb2_hw_lpm_capable = 1; udev->l1_params.timeout = XHCI_L1_TIMEOUT; udev->l1_params.besl = XHCI_DEFAULT_BESL; - if (xhci_check_usb2_port_capability(xhci, portnum, - XHCI_BLC)) + if (capability & XHCI_BLC) udev->usb2_hw_lpm_besl_capable = 1; } @@ -4686,8 +4756,8 @@ static u16 xhci_calculate_u1_timeout(struct xhci_hcd *xhci, */ if (timeout_ns <= USB3_LPM_U1_MAX_TIMEOUT) return timeout_ns; - dev_dbg(&udev->dev, "Hub-initiated U1 disabled " - "due to long timeout %llu ms\n", timeout_ns); + dev_dbg(&udev->dev, "Hub-initiated U1 disabled due to long timeout %lluus\n", + timeout_ns); return xhci_get_timeout_no_hub_lpm(udev, USB3_LPM_U1); } @@ -4744,8 +4814,8 @@ static u16 xhci_calculate_u2_timeout(struct xhci_hcd *xhci, */ if (timeout_ns <= USB3_LPM_U2_MAX_TIMEOUT) return timeout_ns; - dev_dbg(&udev->dev, "Hub-initiated U2 disabled " - "due to long timeout %llu ms\n", timeout_ns); + dev_dbg(&udev->dev, "Hub-initiated U2 disabled due to long timeout %lluus\n", + timeout_ns * 256); return xhci_get_timeout_no_hub_lpm(udev, USB3_LPM_U2); } @@ -5247,6 +5317,11 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) if (xhci->hci_version > 0x96) xhci->quirks |= XHCI_SPURIOUS_SUCCESS; + if (xhci->hci_version == 0x95 && link_quirk) { + xhci_dbg(xhci, "QUIRK: Not clearing Link TRB chain bits"); + xhci->quirks |= XHCI_LINK_TRB_QUIRK; + } + /* Make sure the HC is halted. */ retval = xhci_halt(xhci); if (retval) diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 6f4bf98a6282..242ab9fbc8ae 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -17,6 +17,7 @@ #include <linux/kernel.h> #include <linux/usb/hcd.h> #include <linux/io-64-nonatomic-lo-hi.h> +#include <linux/io-64-nonatomic-hi-lo.h> /* Code sharing between pci-quirks and xhci hcd */ #include "xhci-ext-caps.h" @@ -210,6 +211,9 @@ struct xhci_op_regs { #define CONFIG_CIE (1 << 9) /* bits 10:31 - reserved and should be preserved */ +/* bits 15:0 - HCD page shift bit */ +#define XHCI_PAGE_SIZE_MASK 0xffff + /** * struct xhci_intr_reg - Interrupt Register Set * @irq_pending: IMAN - Interrupt Management Register. Used to enable @@ -528,6 +532,7 @@ struct xhci_command { /* Input context for changing device state */ struct xhci_container_ctx *in_ctx; u32 status; + u32 comp_param; int slot_id; /* If completion is null, no one is waiting on this command * and the structure can be freed after the command completes. @@ -553,6 +558,7 @@ struct xhci_stream_ctx { /* Stream Context Types (section 6.4.1) - bits 3:1 of stream ctx deq ptr */ #define SCT_FOR_CTX(p) (((p) & 0x7) << 1) +#define CTX_TO_SCT(p) (((p) >> 1) & 0x7) /* Secondary stream array type, dequeue pointer is to a transfer ring */ #define SCT_SEC_TR 0 /* Primary stream array type, dequeue pointer is to a transfer ring */ @@ -689,6 +695,7 @@ struct xhci_virt_ep { /* Bandwidth checking storage */ struct xhci_bw_info bw_info; struct list_head bw_endpoint_list; + unsigned long stop_time; /* Isoch Frame ID checking storage */ int next_frame_id; /* Use new Isoch TRB layout needed for extended TBC support */ @@ -805,13 +812,19 @@ struct xhci_transfer_event { __le32 flags; }; +/* Transfer event flags bitfield, also for select command completion events */ +#define TRB_TO_SLOT_ID(p) (((p) >> 24) & 0xff) +#define SLOT_ID_FOR_TRB(p) (((p) & 0xff) << 24) + +#define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f) /* Endpoint ID 1 - 31 */ +#define EP_ID_FOR_TRB(p) (((p) & 0x1f) << 16) + +#define TRB_TO_EP_INDEX(p) (TRB_TO_EP_ID(p) - 1) /* Endpoint index 0 - 30 */ +#define EP_INDEX_FOR_TRB(p) ((((p) + 1) & 0x1f) << 16) + /* Transfer event TRB length bit mask */ -/* bits 0:23 */ #define EVENT_TRB_LEN(p) ((p) & 0xffffff) -/** Transfer Event bit fields **/ -#define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f) - /* Completion Code - only applicable for some types of TRBs */ #define COMP_CODE_MASK (0xff << 24) #define GET_COMP_CODE(p) (((p) & COMP_CODE_MASK) >> 24) @@ -950,7 +963,8 @@ struct xhci_event_cmd { __le32 flags; }; -/* flags bitmasks */ +/* status bitmasks */ +#define COMP_PARAM(p) ((p) & 0xffffff) /* Command Completion Parameter */ /* Address device - disable SetAddress */ #define TRB_BSR (1<<9) @@ -987,13 +1001,8 @@ enum xhci_setup_dev { /* bits 16:23 are the virtual function ID */ /* bits 24:31 are the slot ID */ -#define TRB_TO_SLOT_ID(p) (((p) & (0xff<<24)) >> 24) -#define SLOT_ID_FOR_TRB(p) (((p) & 0xff) << 24) /* Stop Endpoint TRB - ep_index to endpoint ID for this TRB */ -#define TRB_TO_EP_INDEX(p) ((((p) & (0x1f << 16)) >> 16) - 1) -#define EP_ID_FOR_TRB(p) ((((p) + 1) & 0x1f) << 16) - #define SUSPEND_PORT_FOR_TRB(p) (((p) & 1) << 23) #define TRB_TO_SUSPEND_PORT(p) (((p) & (1 << 23)) >> 23) #define LAST_EP_INDEX 30 @@ -1001,7 +1010,7 @@ enum xhci_setup_dev { /* Set TR Dequeue Pointer command TRB fields, 6.4.3.9 */ #define TRB_TO_STREAM_ID(p) ((((p) & (0xffff << 16)) >> 16)) #define STREAM_ID_FOR_TRB(p) ((((p)) & 0xffff) << 16) -#define SCT_FOR_TRB(p) (((p) << 1) & 0x7) +#define SCT_FOR_TRB(p) (((p) & 0x7) << 1) /* Link TRB specific fields */ #define TRB_TC (1<<1) @@ -1023,9 +1032,6 @@ enum xhci_setup_dev { /* Interrupter Target - which MSI-X vector to target the completion event at */ #define TRB_INTR_TARGET(p) (((p) & 0x3ff) << 22) #define GET_INTR_TARGET(p) (((p) >> 22) & 0x3ff) -/* Total burst count field, Rsvdz on xhci 1.1 with Extended TBC enabled (ETE) */ -#define TRB_TBC(p) (((p) & 0x3) << 7) -#define TRB_TLBPC(p) (((p) & 0xf) << 16) /* Cycle bit - indicates TRB ownership by HC or HCD */ #define TRB_CYCLE (1<<0) @@ -1059,6 +1065,12 @@ enum xhci_setup_dev { /* Isochronous TRB specific fields */ #define TRB_SIA (1<<31) #define TRB_FRAME_ID(p) (((p) & 0x7ff) << 20) +#define GET_FRAME_ID(p) (((p) >> 20) & 0x7ff) +/* Total burst count field, Rsvdz on xhci 1.1 with Extended TBC enabled (ETE) */ +#define TRB_TBC(p) (((p) & 0x3) << 7) +#define GET_TBC(p) (((p) >> 7) & 0x3) +#define TRB_TLBPC(p) (((p) & 0xf) << 16) +#define GET_TLBPC(p) (((p) >> 16) & 0xf) /* TRB cache size for xHC with TRB cache */ #define TRB_CACHE_SIZE_HS 8 @@ -1259,6 +1271,9 @@ static inline const char *xhci_trb_type_string(u8 type) #define AVOID_BEI_INTERVAL_MIN 8 #define AVOID_BEI_INTERVAL_MAX 32 +#define xhci_for_each_ring_seg(head, seg) \ + for (seg = head; seg != NULL; seg = (seg->next != head ? seg->next : NULL)) + struct xhci_segment { union xhci_trb *trbs; /* private to HCD */ @@ -1276,6 +1291,7 @@ enum xhci_cancelled_td_status { TD_DIRTY = 0, TD_HALTED, TD_CLEARING_CACHE, + TD_CLEARING_CACHE_DEFERRED, TD_CLEARED, }; @@ -1286,14 +1302,13 @@ struct xhci_td { enum xhci_cancelled_td_status cancel_status; struct urb *urb; struct xhci_segment *start_seg; - union xhci_trb *first_trb; - union xhci_trb *last_trb; - struct xhci_segment *last_trb_seg; + union xhci_trb *start_trb; + struct xhci_segment *end_seg; + union xhci_trb *end_trb; struct xhci_segment *bounce_seg; /* actual_length of the URB has already been set */ bool urb_length_set; bool error_mid_td; - unsigned int num_trbs; }; /* @@ -1359,7 +1374,7 @@ struct xhci_ring { unsigned int num_trbs_free; /* used only by xhci DbC */ unsigned int bounce_buf_len; enum xhci_ring_type type; - bool last_td_was_short; + u32 old_trb_comp_code; struct radix_tree_root *trb_address_map; }; @@ -1376,8 +1391,6 @@ struct xhci_erst { unsigned int num_entries; /* xhci->event_ring keeps track of segment dma addresses */ dma_addr_t erst_dma_addr; - /* Num entries the ERST can contain */ - unsigned int erst_size; }; struct xhci_scratchpad { @@ -1392,8 +1405,8 @@ struct urb_priv { struct xhci_td td[] __counted_by(num_tds); }; -/* Reasonable limit for number of Event Ring segments (spec allows 32k) */ -#define ERST_MAX_SEGS 2 +/* Number of Event Ring segments to allocate, when amount is not specified. (spec allows 32k) */ +#define ERST_DEFAULT_SEGS 2 /* Poll every 60 seconds */ #define POLL_TIMEOUT 60 /* Stop endpoint command timeout (secs) for URB cancellation watchdog timer */ @@ -1451,6 +1464,7 @@ struct xhci_port_cap { u8 psi_uid_count; u8 maj_rev; u8 min_rev; + u32 protocol_caps; }; struct xhci_port { @@ -1499,19 +1513,11 @@ struct xhci_hcd { spinlock_t lock; /* packed release number */ - u8 sbrn; u16 hci_version; - u8 max_slots; u16 max_interrupters; - u8 max_ports; - u8 isoc_threshold; /* imod_interval in ns (I * 250ns) */ u32 imod_interval; - int event_ring_max; - /* 4KB min, 128MB max */ - int page_size; - /* Valid values are 12 to 20, inclusive */ - int page_shift; + u32 page_size; /* MSI-X/MSI vectors */ int nvecs; /* optional clocks */ @@ -1589,7 +1595,7 @@ struct xhci_hcd { #define XHCI_RESET_ON_RESUME BIT_ULL(7) #define XHCI_SW_BW_CHECKING BIT_ULL(8) #define XHCI_AMD_0x96_HOST BIT_ULL(9) -#define XHCI_TRUST_TX_LENGTH BIT_ULL(10) +#define XHCI_TRUST_TX_LENGTH BIT_ULL(10) /* Deprecated */ #define XHCI_LPM_SUPPORT BIT_ULL(11) #define XHCI_INTEL_HOST BIT_ULL(12) #define XHCI_SPURIOUS_REBOOT BIT_ULL(13) @@ -1617,7 +1623,7 @@ struct xhci_hcd { #define XHCI_DEFAULT_PM_RUNTIME_ALLOW BIT_ULL(33) #define XHCI_RESET_PLL_ON_DISCONNECT BIT_ULL(34) #define XHCI_SNPS_BROKEN_SUSPEND BIT_ULL(35) -#define XHCI_RENESAS_FW_QUIRK BIT_ULL(36) +/* Reserved. It was XHCI_RENESAS_FW_QUIRK */ #define XHCI_SKIP_PHY_INIT BIT_ULL(37) #define XHCI_DISABLE_SPARSE BIT_ULL(38) #define XHCI_SG_TRB_CACHE_SIZE_QUIRK BIT_ULL(39) @@ -1626,8 +1632,11 @@ struct xhci_hcd { #define XHCI_EP_CTX_BROKEN_DCS BIT_ULL(42) #define XHCI_SUSPEND_RESUME_CLKS BIT_ULL(43) #define XHCI_RESET_TO_DEFAULT BIT_ULL(44) -#define XHCI_ZHAOXIN_TRB_FETCH BIT_ULL(45) +#define XHCI_TRB_OVERFETCH BIT_ULL(45) #define XHCI_ZHAOXIN_HOST BIT_ULL(46) +#define XHCI_WRITE_64_HI_LO BIT_ULL(47) +#define XHCI_CDNS_SCTX_QUIRK BIT_ULL(48) +#define XHCI_ETRON_HOST BIT_ULL(49) unsigned int num_active_eps; unsigned int limit_active_eps; @@ -1640,9 +1649,6 @@ struct xhci_hcd { unsigned broken_suspend:1; /* Indicates that omitting hcd is supported if root hub has no ports */ unsigned allow_single_roothub:1; - /* cached usb2 extened protocol capabilites */ - u32 *ext_caps; - unsigned int num_ext_caps; /* cached extended protocol port capabilities */ struct xhci_port_cap *port_caps; unsigned int num_port_caps; @@ -1729,8 +1735,6 @@ static inline bool xhci_has_one_roothub(struct xhci_hcd *xhci) dev_err(xhci_to_hcd(xhci)->self.controller , fmt , ## args) #define xhci_warn(xhci, fmt, args...) \ dev_warn(xhci_to_hcd(xhci)->self.controller , fmt , ## args) -#define xhci_warn_ratelimited(xhci, fmt, args...) \ - dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args) #define xhci_info(xhci, fmt, args...) \ dev_info(xhci_to_hcd(xhci)->self.controller , fmt , ## args) @@ -1754,9 +1758,21 @@ static inline void xhci_write_64(struct xhci_hcd *xhci, lo_hi_writeq(val, regs); } -static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci) + +/* + * Reportedly, some chapters of v0.95 spec said that Link TRB always has its chain bit set. + * Other chapters and later specs say that it should only be set if the link is inside a TD + * which continues from the end of one segment to the next segment. + * + * Some 0.95 hardware was found to misbehave if any link TRB doesn't have the chain bit set. + * + * 0.96 hardware from AMD and NEC was found to ignore unchained isochronous link TRBs when + * "resynchronizing the pipe" after a Missed Service Error. + */ +static inline bool xhci_link_chain_quirk(struct xhci_hcd *xhci, enum xhci_ring_type type) { - return xhci->quirks & XHCI_LINK_TRB_QUIRK; + return (xhci->quirks & XHCI_LINK_TRB_QUIRK) || + (type == TYPE_ISOC && (xhci->quirks & (XHCI_AMD_0x96_HOST | XHCI_NEC_HOST))); } /* xHCI debugging */ @@ -1794,14 +1810,12 @@ void xhci_slot_copy(struct xhci_hcd *xhci, int xhci_endpoint_init(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *udev, struct usb_host_endpoint *ep, gfp_t mem_flags); -struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, - unsigned int num_segs, unsigned int cycle_state, +struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, unsigned int num_segs, enum xhci_ring_type type, unsigned int max_packet, gfp_t flags); void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring); int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, unsigned int num_trbs, gfp_t flags); -void xhci_initialize_ring_info(struct xhci_ring *ring, - unsigned int cycle_state); +void xhci_initialize_ring_info(struct xhci_ring *ring); void xhci_free_endpoint_ring(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, unsigned int ep_index); @@ -1833,7 +1847,8 @@ struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci, void xhci_free_container_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg); +xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, + u32 imod_interval); void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir); @@ -1864,7 +1879,7 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id); int xhci_ext_cap_init(struct xhci_hcd *xhci); int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup); -int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg); +int xhci_resume(struct xhci_hcd *xhci, bool power_lost, bool is_auto_resume); irqreturn_t xhci_irq(struct usb_hcd *hcd); irqreturn_t xhci_msi_irq(int irq, void *hcd); @@ -1873,12 +1888,13 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *hdev, struct usb_tt *tt, gfp_t mem_flags); +int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, + u32 imod_interval); +int xhci_enable_interrupter(struct xhci_interrupter *ir); +int xhci_disable_interrupter(struct xhci_interrupter *ir); /* xHCI ring, segment, TRB, and TD functions */ dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb); -struct xhci_segment *trb_in_td(struct xhci_hcd *xhci, - struct xhci_segment *start_seg, union xhci_trb *start_trb, - union xhci_trb *end_trb, dma_addr_t suspect_dma, bool debug); int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code); void xhci_ring_cmd_db(struct xhci_hcd *xhci); int xhci_queue_slot_control(struct xhci_hcd *xhci, struct xhci_command *cmd, @@ -1907,10 +1923,6 @@ int xhci_queue_reset_ep(struct xhci_hcd *xhci, struct xhci_command *cmd, enum xhci_ep_reset_type reset_type); int xhci_queue_reset_device(struct xhci_hcd *xhci, struct xhci_command *cmd, u32 slot_id); -void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int slot_id, - unsigned int ep_index, unsigned int stream_id, - struct xhci_td *td); -void xhci_stop_endpoint_command_watchdog(struct timer_list *t); void xhci_handle_command_timeout(struct work_struct *work); void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id, @@ -1921,6 +1933,9 @@ void xhci_ring_doorbell_for_active_rings(struct xhci_hcd *xhci, void xhci_cleanup_command_queue(struct xhci_hcd *xhci); void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring); unsigned int count_trbs(u64 addr, u64 len); +int xhci_stop_endpoint_sync(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + int suspend, gfp_t gfp_flags); +void xhci_process_cancelled_tds(struct xhci_virt_ep *ep); /* xHCI roothub code */ void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, @@ -1932,7 +1947,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, int xhci_hub_status_data(struct usb_hcd *hcd, char *buf); int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1); struct xhci_hub *xhci_get_rhub(struct usb_hcd *hcd); - +enum usb_link_tunnel_mode xhci_port_is_tunneled(struct xhci_hcd *xhci, + struct xhci_port *port); void xhci_hc_died(struct xhci_hcd *xhci); #ifdef CONFIG_PM @@ -2027,8 +2043,7 @@ static inline const char *xhci_decode_trb(char *str, size_t size, field1, field0, xhci_trb_comp_code_string(GET_COMP_CODE(field2)), EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3), - /* Macro decrements 1, maybe it shouldn't?!? */ - TRB_TO_EP_INDEX(field3) + 1, + TRB_TO_EP_ID(field3), xhci_trb_type_string(type), field3 & EVENT_DATA ? 'E' : 'e', field3 & TRB_CYCLE ? 'C' : 'c'); @@ -2078,7 +2093,6 @@ static inline const char *xhci_decode_trb(char *str, size_t size, field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_NORMAL: - case TRB_ISOC: case TRB_EVENT_DATA: case TRB_TR_NOOP: snprintf(str, size, @@ -2095,7 +2109,25 @@ static inline const char *xhci_decode_trb(char *str, size_t size, field3 & TRB_ENT ? 'E' : 'e', field3 & TRB_CYCLE ? 'C' : 'c'); break; - + case TRB_ISOC: + snprintf(str, size, + "Buffer %08x%08x length %d TD size/TBC %d intr %d type '%s' TBC %u TLBPC %u frame_id %u flags %c:%c:%c:%c:%c:%c:%c:%c:%c", + field1, field0, TRB_LEN(field2), GET_TD_SIZE(field2), + GET_INTR_TARGET(field2), + xhci_trb_type_string(type), + GET_TBC(field3), + GET_TLBPC(field3), + GET_FRAME_ID(field3), + field3 & TRB_SIA ? 'S' : 's', + field3 & TRB_BEI ? 'B' : 'b', + field3 & TRB_IDT ? 'I' : 'i', + field3 & TRB_IOC ? 'I' : 'i', + field3 & TRB_CHAIN ? 'C' : 'c', + field3 & TRB_NO_SNOOP ? 'S' : 's', + field3 & TRB_ISP ? 'I' : 'i', + field3 & TRB_ENT ? 'E' : 'e', + field3 & TRB_CYCLE ? 'C' : 'c'); + break; case TRB_CMD_NOOP: case TRB_ENABLE_SLOT: snprintf(str, size, @@ -2143,8 +2175,7 @@ static inline const char *xhci_decode_trb(char *str, size_t size, xhci_trb_type_string(type), field1, field0, TRB_TO_SLOT_ID(field3), - /* Macro decrements 1, maybe it shouldn't?!? */ - TRB_TO_EP_INDEX(field3) + 1, + TRB_TO_EP_ID(field3), field3 & TRB_TSP ? 'T' : 't', field3 & TRB_CYCLE ? 'C' : 'c'); break; @@ -2154,8 +2185,7 @@ static inline const char *xhci_decode_trb(char *str, size_t size, xhci_trb_type_string(type), TRB_TO_SLOT_ID(field3), TRB_TO_SUSPEND_PORT(field3), - /* Macro decrements 1, maybe it shouldn't?!? */ - TRB_TO_EP_INDEX(field3) + 1, + TRB_TO_EP_ID(field3), field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_SET_DEQ: @@ -2165,8 +2195,7 @@ static inline const char *xhci_decode_trb(char *str, size_t size, field1, field0, TRB_TO_STREAM_ID(field2), TRB_TO_SLOT_ID(field3), - /* Macro decrements 1, maybe it shouldn't?!? */ - TRB_TO_EP_INDEX(field3) + 1, + TRB_TO_EP_ID(field3), field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_RESET_DEV: @@ -2340,7 +2369,12 @@ static inline const char *xhci_decode_portsc(char *str, u32 portsc) { int ret; - ret = sprintf(str, "%s %s %s Link:%s PortSpeed:%d ", + ret = sprintf(str, "0x%08x ", portsc); + + if (portsc == ~(u32)0) + return str; + + ret += sprintf(str + ret, "%s %s %s Link:%s PortSpeed:%d ", portsc & PORT_POWER ? "Powered" : "Powered-off", portsc & PORT_CONNECT ? "Connected" : "Not-connected", portsc & PORT_PE ? "Enabled" : "Disabled", diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c index 8c8fa71c69c4..934ec5310fb9 100644 --- a/drivers/usb/image/microtek.c +++ b/drivers/usb/image/microtek.c @@ -322,18 +322,12 @@ static inline void mts_urb_abort(struct mts_desc* desc) { usb_kill_urb( desc->urb ); } -static int mts_slave_alloc (struct scsi_device *s) +static int mts_sdev_init (struct scsi_device *s) { s->inquiry_len = 0x24; return 0; } -static int mts_slave_configure (struct scsi_device *s) -{ - blk_queue_dma_alignment(s->request_queue, (512 - 1)); - return 0; -} - static int mts_scsi_abort(struct scsi_cmnd *srb) { struct mts_desc* desc = (struct mts_desc*)(srb->device->host->hostdata[0]); @@ -631,8 +625,8 @@ static const struct scsi_host_template mts_scsi_host_template = { .can_queue = 1, .this_id = -1, .emulated = 1, - .slave_alloc = mts_slave_alloc, - .slave_configure = mts_slave_configure, + .dma_alignment = 511, + .sdev_init = mts_sdev_init, .max_sectors= 256, /* 128 K */ }; diff --git a/drivers/usb/isp1760/Kconfig b/drivers/usb/isp1760/Kconfig index 2ed2b73291d1..e19178f3cdd3 100644 --- a/drivers/usb/isp1760/Kconfig +++ b/drivers/usb/isp1760/Kconfig @@ -26,7 +26,7 @@ config USB_ISP1761_UDC if USB_ISP1760 choice - bool "ISP1760 Mode Selection" + prompt "ISP1760 Mode Selection" default USB_ISP1760_DUAL_ROLE if (USB && USB_GADGET) default USB_ISP1760_HOST_ROLE if (USB && !USB_GADGET) default USB_ISP1760_GADGET_ROLE if (!USB && USB_GADGET) diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c index 0e5e4cb74c87..8dcd9cc22413 100644 --- a/drivers/usb/isp1760/isp1760-hcd.c +++ b/drivers/usb/isp1760/isp1760-hcd.c @@ -27,7 +27,7 @@ #include <linux/iopoll.h> #include <linux/mm.h> #include <linux/timer.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <asm/cacheflush.h> #include "isp1760-core.h" @@ -2458,7 +2458,7 @@ static void isp1760_stop(struct usb_hcd *hcd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); - del_timer(&errata2_timer); + timer_delete(&errata2_timer); isp1760_hub_control(hcd, ClearPortFeature, USB_PORT_FEAT_POWER, 1, NULL, 0); diff --git a/drivers/usb/isp1760/isp1760-if.c b/drivers/usb/isp1760/isp1760-if.c index fe1e3985419a..a64190addba6 100644 --- a/drivers/usb/isp1760/isp1760-if.c +++ b/drivers/usb/isp1760/isp1760-if.c @@ -263,7 +263,7 @@ MODULE_DEVICE_TABLE(of, isp1760_of_match); static struct platform_driver isp1760_plat_driver = { .probe = isp1760_plat_probe, - .remove_new = isp1760_plat_remove, + .remove = isp1760_plat_remove, .driver = { .name = "isp1760", .of_match_table = of_match_ptr(isp1760_of_match), diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c index 5cafd23345ca..2af89ee28baa 100644 --- a/drivers/usb/isp1760/isp1760-udc.c +++ b/drivers/usb/isp1760/isp1760-udc.c @@ -1145,7 +1145,7 @@ static void isp1760_udc_disconnect(struct isp1760_udc *udc) if (udc->driver->disconnect) udc->driver->disconnect(&udc->gadget); - del_timer(&udc->vbus_timer); + timer_delete(&udc->vbus_timer); /* TODO Reset all endpoints ? */ } @@ -1314,7 +1314,7 @@ static int isp1760_udc_stop(struct usb_gadget *gadget) dev_dbg(udc->isp->dev, "%s\n", __func__); - del_timer_sync(&udc->vbus_timer); + timer_delete_sync(&udc->vbus_timer); isp1760_reg_write(udc->regs, mode_reg, 0); diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index c510af7baa0d..6497c4e81e95 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -316,18 +316,30 @@ config BRCM_USB_PINMAP signals, which are typically on dedicated pins on the chip, to any gpio. -config USB_ONBOARD_HUB - tristate "Onboard USB hub support" +config USB_ONBOARD_DEV + tristate "Onboard USB device support" depends on OF help - Say Y here if you want to support discrete onboard USB hubs that - don't require an additional control bus for initialization, but - need some non-trivial form of initialization, such as enabling a - power regulator. An example for such a hub is the Realtek - RTS5411. + Say Y here if you want to support discrete onboard USB devices + that don't require an additional control bus for initialization, + but need some non-trivial form of initialization, such as + enabling a power regulator. An example for such device is the + Realtek RTS5411 hub. This driver can be used as a module but its state (module vs builtin) must match the state of the USB subsystem. Enabling this config will enable the driver and it will automatically match the state of the USB subsystem. If this driver is a - module it will be called onboard_usb_hub. + module it will be called onboard_usb_dev. + +config USB_ONBOARD_DEV_USB5744 + bool "Onboard USB Microchip usb5744 hub with SMBus support" + depends on (USB_ONBOARD_DEV && I2C=y) || (USB_ONBOARD_DEV=m && I2C=m) + help + Say Y here if you want to support onboard USB Microchip usb5744 + hub that requires SMBus initialization. + + This options enables usb5744 i2c default initialization sequence + during hub start-up configuration stage. It is must to enable this + option on AMD Kria KR260 Robotics Starter Kit as this hub is + connected to USB-SD converter which mounts the root filesystem. diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index 0bc732bcb162..0cd5bc8f52fe 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -33,4 +33,4 @@ obj-$(CONFIG_USB_CHAOSKEY) += chaoskey.o obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ obj-$(CONFIG_USB_LINK_LAYER_TEST) += lvstest.o obj-$(CONFIG_BRCM_USB_PINMAP) += brcmstb-usb-pinmap.o -obj-$(CONFIG_USB_ONBOARD_HUB) += onboard_usb_hub.o +obj-$(CONFIG_USB_ONBOARD_DEV) += onboard_usb_dev.o diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index c8098e9b432e..62b5a30edc42 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -107,7 +107,12 @@ static void appledisplay_complete(struct urb *urb) case ACD_BTN_BRIGHT_UP: case ACD_BTN_BRIGHT_DOWN: pdata->button_pressed = 1; - schedule_delayed_work(&pdata->work, 0); + /* + * there is a window during which no device + * is registered + */ + if (pdata->bd ) + schedule_delayed_work(&pdata->work, 0); break; case ACD_BTN_NONE: default: @@ -202,6 +207,7 @@ static int appledisplay_probe(struct usb_interface *iface, const struct usb_device_id *id) { struct backlight_properties props; + struct backlight_device *backlight; struct appledisplay *pdata; struct usb_device *udev = interface_to_usbdev(iface); struct usb_endpoint_descriptor *endpoint; @@ -272,13 +278,14 @@ static int appledisplay_probe(struct usb_interface *iface, memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; props.max_brightness = 0xff; - pdata->bd = backlight_device_register(bl_name, NULL, pdata, + backlight = backlight_device_register(bl_name, NULL, pdata, &appledisplay_bl_data, &props); - if (IS_ERR(pdata->bd)) { + if (IS_ERR(backlight)) { dev_err(&iface->dev, "Backlight registration failed\n"); - retval = PTR_ERR(pdata->bd); + retval = PTR_ERR(backlight); goto error; } + pdata->bd = backlight; /* Try to get brightness */ brightness = appledisplay_bl_get_brightness(pdata->bd); diff --git a/drivers/usb/misc/brcmstb-usb-pinmap.c b/drivers/usb/misc/brcmstb-usb-pinmap.c index 2b2019c19cde..1ce885e4184c 100644 --- a/drivers/usb/misc/brcmstb-usb-pinmap.c +++ b/drivers/usb/misc/brcmstb-usb-pinmap.c @@ -335,6 +335,7 @@ static const struct of_device_id brcmstb_usb_pinmap_of_match[] = { { .compatible = "brcm,usb-pinmap" }, { }, }; +MODULE_DEVICE_TABLE(of, brcmstb_usb_pinmap_of_match); static struct platform_driver brcmstb_usb_pinmap_driver = { .driver = { diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c index 6fb5140e29b9..225863321dc4 100644 --- a/drivers/usb/misc/chaoskey.c +++ b/drivers/usb/misc/chaoskey.c @@ -27,6 +27,8 @@ static struct usb_class_driver chaoskey_class; static int chaoskey_rng_read(struct hwrng *rng, void *data, size_t max, bool wait); +static DEFINE_MUTEX(chaoskey_list_lock); + #define usb_dbg(usb_if, format, arg...) \ dev_dbg(&(usb_if)->dev, format, ## arg) @@ -233,6 +235,7 @@ static void chaoskey_disconnect(struct usb_interface *interface) usb_deregister_dev(interface, &chaoskey_class); usb_set_intfdata(interface, NULL); + mutex_lock(&chaoskey_list_lock); mutex_lock(&dev->lock); dev->present = false; @@ -244,6 +247,7 @@ static void chaoskey_disconnect(struct usb_interface *interface) } else mutex_unlock(&dev->lock); + mutex_unlock(&chaoskey_list_lock); usb_dbg(interface, "disconnect done"); } @@ -251,6 +255,7 @@ static int chaoskey_open(struct inode *inode, struct file *file) { struct chaoskey *dev; struct usb_interface *interface; + int rv = 0; /* get the interface from minor number and driver information */ interface = usb_find_interface(&chaoskey_driver, iminor(inode)); @@ -266,18 +271,23 @@ static int chaoskey_open(struct inode *inode, struct file *file) } file->private_data = dev; + mutex_lock(&chaoskey_list_lock); mutex_lock(&dev->lock); - ++dev->open; + if (dev->present) + ++dev->open; + else + rv = -ENODEV; mutex_unlock(&dev->lock); + mutex_unlock(&chaoskey_list_lock); - usb_dbg(interface, "open success"); - return 0; + return rv; } static int chaoskey_release(struct inode *inode, struct file *file) { struct chaoskey *dev = file->private_data; struct usb_interface *interface; + int rv = 0; if (dev == NULL) return -ENODEV; @@ -286,14 +296,15 @@ static int chaoskey_release(struct inode *inode, struct file *file) usb_dbg(interface, "release"); + mutex_lock(&chaoskey_list_lock); mutex_lock(&dev->lock); usb_dbg(interface, "open count at release is %d", dev->open); if (dev->open <= 0) { usb_dbg(interface, "invalid open count (%d)", dev->open); - mutex_unlock(&dev->lock); - return -ENODEV; + rv = -ENODEV; + goto bail; } --dev->open; @@ -302,13 +313,15 @@ static int chaoskey_release(struct inode *inode, struct file *file) if (dev->open == 0) { mutex_unlock(&dev->lock); chaoskey_free(dev); - } else - mutex_unlock(&dev->lock); - } else - mutex_unlock(&dev->lock); - + goto destruction; + } + } +bail: + mutex_unlock(&dev->lock); +destruction: + mutex_unlock(&chaoskey_list_lock); usb_dbg(interface, "release success"); - return 0; + return rv; } static void chaos_read_callback(struct urb *urb) diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c index cecd7693b741..75f5a740cba3 100644 --- a/drivers/usb/misc/cypress_cy7c63.c +++ b/drivers/usb/misc/cypress_cy7c63.c @@ -88,6 +88,9 @@ static int vendor_command(struct cypress *dev, unsigned char request, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, address, data, iobuf, CYPRESS_MAX_REQSIZE, USB_CTRL_GET_TIMEOUT); + /* we must not process garbage */ + if (retval < 2) + goto err_buf; /* store returned data (more READs to be added) */ switch (request) { @@ -107,6 +110,7 @@ static int vendor_command(struct cypress *dev, unsigned char request, break; } +err_buf: kfree(iobuf); error: return retval; diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c index 78aaee56c2b7..7ab4856aba0e 100644 --- a/drivers/usb/misc/ezusb.c +++ b/drivers/usb/misc/ezusb.c @@ -148,4 +148,5 @@ int ezusb_fx2_ihex_firmware_download(struct usb_device *dev, EXPORT_SYMBOL_GPL(ezusb_fx2_ihex_firmware_download); #endif +MODULE_DESCRIPTION("EZUSB device support"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 6d28467ce352..365c10069345 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -277,28 +277,45 @@ static ssize_t iowarrior_read(struct file *file, char __user *buffer, struct iowarrior *dev; int read_idx; int offset; + int retval; dev = file->private_data; + if (file->f_flags & O_NONBLOCK) { + retval = mutex_trylock(&dev->mutex); + if (!retval) + return -EAGAIN; + } else { + retval = mutex_lock_interruptible(&dev->mutex); + if (retval) + return -ERESTARTSYS; + } + /* verify that the device wasn't unplugged */ - if (!dev || !dev->present) - return -ENODEV; + if (!dev->present) { + retval = -ENODEV; + goto exit; + } dev_dbg(&dev->interface->dev, "minor %d, count = %zd\n", dev->minor, count); /* read count must be packet size (+ time stamp) */ if ((count != dev->report_size) - && (count != (dev->report_size + 1))) - return -EINVAL; + && (count != (dev->report_size + 1))) { + retval = -EINVAL; + goto exit; + } /* repeat until no buffer overrun in callback handler occur */ do { atomic_set(&dev->overflow_flag, 0); if ((read_idx = read_index(dev)) == -1) { /* queue empty */ - if (file->f_flags & O_NONBLOCK) - return -EAGAIN; + if (file->f_flags & O_NONBLOCK) { + retval = -EAGAIN; + goto exit; + } else { //next line will return when there is either new data, or the device is unplugged int r = wait_event_interruptible(dev->read_wait, @@ -309,28 +326,37 @@ static ssize_t iowarrior_read(struct file *file, char __user *buffer, -1)); if (r) { //we were interrupted by a signal - return -ERESTART; + retval = -ERESTART; + goto exit; } if (!dev->present) { //The device was unplugged - return -ENODEV; + retval = -ENODEV; + goto exit; } if (read_idx == -1) { // Can this happen ??? - return 0; + retval = 0; + goto exit; } } } offset = read_idx * (dev->report_size + 1); if (copy_to_user(buffer, dev->read_queue + offset, count)) { - return -EFAULT; + retval = -EFAULT; + goto exit; } } while (atomic_read(&dev->overflow_flag)); read_idx = ++read_idx == MAX_INTERRUPT_BUFFER ? 0 : read_idx; atomic_set(&dev->read_idx, read_idx); + mutex_unlock(&dev->mutex); return count; + +exit: + mutex_unlock(&dev->mutex); + return retval; } /* @@ -885,7 +911,6 @@ error: static void iowarrior_disconnect(struct usb_interface *interface) { struct iowarrior *dev = usb_get_intfdata(interface); - int minor = dev->minor; usb_deregister_dev(interface, &iowarrior_class); @@ -909,9 +934,6 @@ static void iowarrior_disconnect(struct usb_interface *interface) mutex_unlock(&dev->mutex); iowarrior_delete(dev); } - - dev_info(&interface->dev, "I/O-Warror #%d now disconnected\n", - minor - IOWARRIOR_MINOR_BASE); } /* usb specific object needed to register this driver with the usb subsystem */ diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c index 4d30095d6ad2..2d9af74a62c1 100644 --- a/drivers/usb/misc/isight_firmware.c +++ b/drivers/usb/misc/isight_firmware.c @@ -127,5 +127,6 @@ static struct usb_driver isight_firmware_driver = { module_usb_driver(isight_firmware_driver); +MODULE_DESCRIPTION("iSight firmware loading support"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>"); diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index 7cbef74dfc9a..f392d6f84df9 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -627,7 +627,6 @@ static const struct file_operations ld_usb_fops = { .open = ld_usb_open, .release = ld_usb_release, .poll = ld_usb_poll, - .llseek = no_llseek, }; /* diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c new file mode 100644 index 000000000000..f5372dfa241a --- /dev/null +++ b/drivers/usb/misc/onboard_usb_dev.c @@ -0,0 +1,641 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Driver for onboard USB devices + * + * Copyright (c) 2022, Google LLC + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/export.h> +#include <linux/err.h> +#include <linux/gpio/consumer.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <linux/suspend.h> +#include <linux/sysfs.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/onboard_dev.h> +#include <linux/workqueue.h> + +#include "onboard_usb_dev.h" + +/* USB5744 register offset and mask */ +#define USB5744_CMD_ATTACH 0xAA +#define USB5744_CMD_ATTACH_LSB 0x56 +#define USB5744_CMD_CREG_ACCESS 0x99 +#define USB5744_CMD_CREG_ACCESS_LSB 0x37 +#define USB5744_CREG_MEM_ADDR 0x00 +#define USB5744_CREG_WRITE 0x00 +#define USB5744_CREG_RUNTIMEFLAGS2 0x41 +#define USB5744_CREG_RUNTIMEFLAGS2_LSB 0x1D +#define USB5744_CREG_BYPASS_UDC_SUSPEND BIT(3) + +static void onboard_dev_attach_usb_driver(struct work_struct *work); + +static struct usb_device_driver onboard_dev_usbdev_driver; +static DECLARE_WORK(attach_usb_driver_work, onboard_dev_attach_usb_driver); + +/************************** Platform driver **************************/ + +struct usbdev_node { + struct usb_device *udev; + struct list_head list; +}; + +struct onboard_dev { + struct regulator_bulk_data supplies[MAX_SUPPLIES]; + struct device *dev; + const struct onboard_dev_pdata *pdata; + struct gpio_desc *reset_gpio; + bool always_powered_in_suspend; + bool is_powered_on; + bool going_away; + struct list_head udev_list; + struct mutex lock; + struct clk *clk; +}; + +static int onboard_dev_get_regulators(struct onboard_dev *onboard_dev) +{ + const char * const *supply_names = onboard_dev->pdata->supply_names; + unsigned int num_supplies = onboard_dev->pdata->num_supplies; + struct device *dev = onboard_dev->dev; + unsigned int i; + int err; + + if (num_supplies > MAX_SUPPLIES) + return dev_err_probe(dev, -EINVAL, "max %d supplies supported!\n", + MAX_SUPPLIES); + + for (i = 0; i < num_supplies; i++) + onboard_dev->supplies[i].supply = supply_names[i]; + + err = devm_regulator_bulk_get(dev, num_supplies, onboard_dev->supplies); + if (err) + dev_err(dev, "Failed to get regulator supplies: %pe\n", + ERR_PTR(err)); + + return err; +} + +static int onboard_dev_power_on(struct onboard_dev *onboard_dev) +{ + int err; + + err = clk_prepare_enable(onboard_dev->clk); + if (err) { + dev_err(onboard_dev->dev, "failed to enable clock: %pe\n", + ERR_PTR(err)); + return err; + } + + err = regulator_bulk_enable(onboard_dev->pdata->num_supplies, + onboard_dev->supplies); + if (err) { + dev_err(onboard_dev->dev, "failed to enable supplies: %pe\n", + ERR_PTR(err)); + goto disable_clk; + } + + fsleep(onboard_dev->pdata->reset_us); + gpiod_set_value_cansleep(onboard_dev->reset_gpio, 0); + fsleep(onboard_dev->pdata->power_on_delay_us); + + onboard_dev->is_powered_on = true; + + return 0; + +disable_clk: + clk_disable_unprepare(onboard_dev->clk); + return err; +} + +static int onboard_dev_power_off(struct onboard_dev *onboard_dev) +{ + int err; + + gpiod_set_value_cansleep(onboard_dev->reset_gpio, 1); + + err = regulator_bulk_disable(onboard_dev->pdata->num_supplies, + onboard_dev->supplies); + if (err) { + dev_err(onboard_dev->dev, "failed to disable supplies: %pe\n", + ERR_PTR(err)); + return err; + } + + clk_disable_unprepare(onboard_dev->clk); + + onboard_dev->is_powered_on = false; + + return 0; +} + +static int __maybe_unused onboard_dev_suspend(struct device *dev) +{ + struct onboard_dev *onboard_dev = dev_get_drvdata(dev); + struct usbdev_node *node; + bool power_off = true; + + if (onboard_dev->always_powered_in_suspend) + return 0; + + mutex_lock(&onboard_dev->lock); + + list_for_each_entry(node, &onboard_dev->udev_list, list) { + if (!device_may_wakeup(node->udev->bus->controller)) + continue; + + if (usb_wakeup_enabled_descendants(node->udev)) { + power_off = false; + break; + } + } + + mutex_unlock(&onboard_dev->lock); + + if (!power_off) + return 0; + + return onboard_dev_power_off(onboard_dev); +} + +static int __maybe_unused onboard_dev_resume(struct device *dev) +{ + struct onboard_dev *onboard_dev = dev_get_drvdata(dev); + + if (onboard_dev->is_powered_on) + return 0; + + return onboard_dev_power_on(onboard_dev); +} + +static inline void get_udev_link_name(const struct usb_device *udev, char *buf, + size_t size) +{ + snprintf(buf, size, "usb_dev.%s", dev_name(&udev->dev)); +} + +static int onboard_dev_add_usbdev(struct onboard_dev *onboard_dev, + struct usb_device *udev) +{ + struct usbdev_node *node; + char link_name[64]; + int err; + + mutex_lock(&onboard_dev->lock); + + if (onboard_dev->going_away) { + err = -EINVAL; + goto error; + } + + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (!node) { + err = -ENOMEM; + goto error; + } + + node->udev = udev; + + list_add(&node->list, &onboard_dev->udev_list); + + mutex_unlock(&onboard_dev->lock); + + get_udev_link_name(udev, link_name, sizeof(link_name)); + WARN_ON(sysfs_create_link(&onboard_dev->dev->kobj, &udev->dev.kobj, + link_name)); + + return 0; + +error: + mutex_unlock(&onboard_dev->lock); + + return err; +} + +static void onboard_dev_remove_usbdev(struct onboard_dev *onboard_dev, + const struct usb_device *udev) +{ + struct usbdev_node *node; + char link_name[64]; + + get_udev_link_name(udev, link_name, sizeof(link_name)); + sysfs_remove_link(&onboard_dev->dev->kobj, link_name); + + mutex_lock(&onboard_dev->lock); + + list_for_each_entry(node, &onboard_dev->udev_list, list) { + if (node->udev == udev) { + list_del(&node->list); + kfree(node); + break; + } + } + + mutex_unlock(&onboard_dev->lock); +} + +static ssize_t always_powered_in_suspend_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + const struct onboard_dev *onboard_dev = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%d\n", onboard_dev->always_powered_in_suspend); +} + +static ssize_t always_powered_in_suspend_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct onboard_dev *onboard_dev = dev_get_drvdata(dev); + bool val; + int ret; + + ret = kstrtobool(buf, &val); + if (ret < 0) + return ret; + + onboard_dev->always_powered_in_suspend = val; + + return count; +} +static DEVICE_ATTR_RW(always_powered_in_suspend); + +static struct attribute *onboard_dev_attrs[] = { + &dev_attr_always_powered_in_suspend.attr, + NULL, +}; + +static umode_t onboard_dev_attrs_are_visible(struct kobject *kobj, + struct attribute *attr, + int n) +{ + struct device *dev = kobj_to_dev(kobj); + struct onboard_dev *onboard_dev = dev_get_drvdata(dev); + + if (attr == &dev_attr_always_powered_in_suspend.attr && + !onboard_dev->pdata->is_hub) + return 0; + + return attr->mode; +} + +static const struct attribute_group onboard_dev_group = { + .is_visible = onboard_dev_attrs_are_visible, + .attrs = onboard_dev_attrs, +}; +__ATTRIBUTE_GROUPS(onboard_dev); + + +static void onboard_dev_attach_usb_driver(struct work_struct *work) +{ + int err; + + err = driver_attach(&onboard_dev_usbdev_driver.driver); + if (err) + pr_err("Failed to attach USB driver: %pe\n", ERR_PTR(err)); +} + +static int onboard_dev_5744_i2c_init(struct i2c_client *client) +{ +#if IS_ENABLED(CONFIG_USB_ONBOARD_DEV_USB5744) + struct device *dev = &client->dev; + int ret; + + /* + * Set BYPASS_UDC_SUSPEND bit to ensure MCU is always enabled + * and ready to respond to SMBus runtime commands. + * The command writes 5 bytes to memory and single data byte in + * configuration register. + */ + char wr_buf[7] = {USB5744_CREG_MEM_ADDR, 5, + USB5744_CREG_WRITE, 1, + USB5744_CREG_RUNTIMEFLAGS2, + USB5744_CREG_RUNTIMEFLAGS2_LSB, + USB5744_CREG_BYPASS_UDC_SUSPEND}; + + ret = i2c_smbus_write_block_data(client, 0, sizeof(wr_buf), wr_buf); + if (ret) + return dev_err_probe(dev, ret, "BYPASS_UDC_SUSPEND bit configuration failed\n"); + + ret = i2c_smbus_write_word_data(client, USB5744_CMD_CREG_ACCESS, + USB5744_CMD_CREG_ACCESS_LSB); + if (ret) + return dev_err_probe(dev, ret, "Configuration Register Access Command failed\n"); + + /* Send SMBus command to boot hub. */ + ret = i2c_smbus_write_word_data(client, USB5744_CMD_ATTACH, + USB5744_CMD_ATTACH_LSB); + if (ret < 0) + return dev_err_probe(dev, ret, "USB Attach with SMBus command failed\n"); + + return ret; +#else + return -ENODEV; +#endif +} + +static int onboard_dev_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct onboard_dev *onboard_dev; + struct device_node *i2c_node; + int err; + + onboard_dev = devm_kzalloc(dev, sizeof(*onboard_dev), GFP_KERNEL); + if (!onboard_dev) + return -ENOMEM; + + onboard_dev->pdata = device_get_match_data(dev); + if (!onboard_dev->pdata) + return -EINVAL; + + if (!onboard_dev->pdata->is_hub) + onboard_dev->always_powered_in_suspend = true; + + onboard_dev->dev = dev; + + err = onboard_dev_get_regulators(onboard_dev); + if (err) + return err; + + onboard_dev->clk = devm_clk_get_optional(dev, NULL); + if (IS_ERR(onboard_dev->clk)) + return dev_err_probe(dev, PTR_ERR(onboard_dev->clk), + "failed to get clock\n"); + + onboard_dev->reset_gpio = devm_gpiod_get_optional(dev, "reset", + GPIOD_OUT_HIGH); + if (IS_ERR(onboard_dev->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(onboard_dev->reset_gpio), + "failed to get reset GPIO\n"); + + mutex_init(&onboard_dev->lock); + INIT_LIST_HEAD(&onboard_dev->udev_list); + + dev_set_drvdata(dev, onboard_dev); + + err = onboard_dev_power_on(onboard_dev); + if (err) + return err; + + i2c_node = of_parse_phandle(pdev->dev.of_node, "i2c-bus", 0); + if (i2c_node) { + struct i2c_client *client = NULL; + +#if IS_ENABLED(CONFIG_USB_ONBOARD_DEV_USB5744) + client = of_find_i2c_device_by_node(i2c_node); +#endif + of_node_put(i2c_node); + + if (!client) { + err = -EPROBE_DEFER; + goto err_power_off; + } + + if (of_device_is_compatible(pdev->dev.of_node, "usb424,2744") || + of_device_is_compatible(pdev->dev.of_node, "usb424,5744")) { + err = onboard_dev_5744_i2c_init(client); + onboard_dev->always_powered_in_suspend = true; + } + + put_device(&client->dev); + if (err < 0) + goto err_power_off; + } + + /* + * The USB driver might have been detached from the USB devices by + * onboard_dev_remove() (e.g. through an 'unbind' by userspace), + * make sure to re-attach it if needed. + * + * This needs to be done deferred to avoid self-deadlocks on systems + * with nested onboard hubs. + */ + schedule_work(&attach_usb_driver_work); + + return 0; + +err_power_off: + onboard_dev_power_off(onboard_dev); + return err; +} + +static void onboard_dev_remove(struct platform_device *pdev) +{ + struct onboard_dev *onboard_dev = dev_get_drvdata(&pdev->dev); + struct usbdev_node *node; + struct usb_device *udev; + + onboard_dev->going_away = true; + + mutex_lock(&onboard_dev->lock); + + /* unbind the USB devices to avoid dangling references to this device */ + while (!list_empty(&onboard_dev->udev_list)) { + node = list_first_entry(&onboard_dev->udev_list, + struct usbdev_node, list); + udev = node->udev; + + /* + * Unbinding the driver will call onboard_dev_remove_usbdev(), + * which acquires onboard_dev->lock. We must release the lock + * first. + */ + get_device(&udev->dev); + mutex_unlock(&onboard_dev->lock); + device_release_driver(&udev->dev); + put_device(&udev->dev); + mutex_lock(&onboard_dev->lock); + } + + mutex_unlock(&onboard_dev->lock); + + onboard_dev_power_off(onboard_dev); +} + +MODULE_DEVICE_TABLE(of, onboard_dev_match); + +static const struct dev_pm_ops __maybe_unused onboard_dev_pm_ops = { + SET_LATE_SYSTEM_SLEEP_PM_OPS(onboard_dev_suspend, onboard_dev_resume) +}; + +static struct platform_driver onboard_dev_driver = { + .probe = onboard_dev_probe, + .remove = onboard_dev_remove, + + .driver = { + .name = "onboard-usb-dev", + .of_match_table = onboard_dev_match, + .pm = pm_ptr(&onboard_dev_pm_ops), + .dev_groups = onboard_dev_groups, + }, +}; + +/************************** USB driver **************************/ + +#define VENDOR_ID_CYPRESS 0x04b4 +#define VENDOR_ID_GENESYS 0x05e3 +#define VENDOR_ID_MICROCHIP 0x0424 +#define VENDOR_ID_REALTEK 0x0bda +#define VENDOR_ID_TI 0x0451 +#define VENDOR_ID_VIA 0x2109 +#define VENDOR_ID_XMOS 0x20B1 + +/* + * Returns the onboard_dev platform device that is associated with the USB + * device passed as parameter. + */ +static struct onboard_dev *_find_onboard_dev(struct device *dev) +{ + struct platform_device *pdev; + struct device_node *np; + struct onboard_dev *onboard_dev; + + pdev = of_find_device_by_node(dev->of_node); + if (!pdev) { + np = of_parse_phandle(dev->of_node, "peer-hub", 0); + if (!np) { + dev_err(dev, "failed to find device node for peer hub\n"); + return ERR_PTR(-EINVAL); + } + + pdev = of_find_device_by_node(np); + of_node_put(np); + + if (!pdev) + return ERR_PTR(-ENODEV); + } + + onboard_dev = dev_get_drvdata(&pdev->dev); + put_device(&pdev->dev); + + /* + * The presence of drvdata indicates that the platform driver finished + * probing. This handles the case where (conceivably) we could be + * running at the exact same time as the platform driver's probe. If + * we detect the race we request probe deferral and we'll come back and + * try again. + */ + if (!onboard_dev) + return ERR_PTR(-EPROBE_DEFER); + + return onboard_dev; +} + +static bool onboard_dev_usbdev_match(struct usb_device *udev) +{ + /* Onboard devices using this driver must have a device tree node */ + return !!udev->dev.of_node; +} + +static int onboard_dev_usbdev_probe(struct usb_device *udev) +{ + struct device *dev = &udev->dev; + struct onboard_dev *onboard_dev; + int err; + + onboard_dev = _find_onboard_dev(dev); + if (IS_ERR(onboard_dev)) + return PTR_ERR(onboard_dev); + + dev_set_drvdata(dev, onboard_dev); + + err = onboard_dev_add_usbdev(onboard_dev, udev); + if (err) + return err; + + return 0; +} + +static void onboard_dev_usbdev_disconnect(struct usb_device *udev) +{ + struct onboard_dev *onboard_dev = dev_get_drvdata(&udev->dev); + + onboard_dev_remove_usbdev(onboard_dev, udev); +} + +static const struct usb_device_id onboard_dev_id_table[] = { + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6500) }, /* CYUSB330x 3.0 HUB */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6502) }, /* CYUSB330x 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6503) }, /* CYUSB33{0,1}x 2.0 HUB, Vendor Mode */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6504) }, /* CYUSB331x 3.0 HUB */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6506) }, /* CYUSB331x 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6507) }, /* CYUSB332x 2.0 HUB, Vendor Mode */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6508) }, /* CYUSB332x 3.0 HUB */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x650a) }, /* CYUSB332x 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6570) }, /* CY7C6563x 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_GENESYS, 0x0608) }, /* Genesys Logic GL850G USB 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_GENESYS, 0x0610) }, /* Genesys Logic GL852G USB 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_GENESYS, 0x0620) }, /* Genesys Logic GL3523 USB 3.1 HUB */ + { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2412) }, /* USB2412 USB 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2514) }, /* USB2514B USB 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2517) }, /* USB2517 USB 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2744) }, /* USB5744 USB 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x5744) }, /* USB5744 USB 3.0 HUB */ + { USB_DEVICE(VENDOR_ID_REALTEK, 0x0411) }, /* RTS5411 USB 3.1 HUB */ + { USB_DEVICE(VENDOR_ID_REALTEK, 0x5411) }, /* RTS5411 USB 2.1 HUB */ + { USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 HUB */ + { USB_DEVICE(VENDOR_ID_REALTEK, 0x5414) }, /* RTS5414 USB 2.1 HUB */ + { USB_DEVICE(VENDOR_ID_TI, 0x8025) }, /* TI USB8020B 3.0 HUB */ + { USB_DEVICE(VENDOR_ID_TI, 0x8027) }, /* TI USB8020B 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_TI, 0x8140) }, /* TI USB8041 3.0 HUB */ + { USB_DEVICE(VENDOR_ID_TI, 0x8142) }, /* TI USB8041 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_VIA, 0x0817) }, /* VIA VL817 3.1 HUB */ + { USB_DEVICE(VENDOR_ID_VIA, 0x2817) }, /* VIA VL817 2.0 HUB */ + { USB_DEVICE(VENDOR_ID_XMOS, 0x0013) }, /* XMOS XVF3500 Voice Processor */ + {} +}; +MODULE_DEVICE_TABLE(usb, onboard_dev_id_table); + +static struct usb_device_driver onboard_dev_usbdev_driver = { + .name = "onboard-usb-dev", + .match = onboard_dev_usbdev_match, + .probe = onboard_dev_usbdev_probe, + .disconnect = onboard_dev_usbdev_disconnect, + .generic_subclass = 1, + .supports_autosuspend = 1, + .id_table = onboard_dev_id_table, +}; + +static int __init onboard_dev_init(void) +{ + int ret; + + ret = usb_register_device_driver(&onboard_dev_usbdev_driver, THIS_MODULE); + if (ret) + return ret; + + ret = platform_driver_register(&onboard_dev_driver); + if (ret) + usb_deregister_device_driver(&onboard_dev_usbdev_driver); + + return ret; +} +module_init(onboard_dev_init); + +static void __exit onboard_dev_exit(void) +{ + usb_deregister_device_driver(&onboard_dev_usbdev_driver); + platform_driver_unregister(&onboard_dev_driver); + + cancel_work_sync(&attach_usb_driver_work); +} +module_exit(onboard_dev_exit); + +MODULE_AUTHOR("Matthias Kaehlcke <mka@chromium.org>"); +MODULE_DESCRIPTION("Driver for discrete onboard USB devices"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/misc/onboard_usb_hub.h b/drivers/usb/misc/onboard_usb_dev.h index b4b15d45f84d..933797a7e084 100644 --- a/drivers/usb/misc/onboard_usb_hub.h +++ b/drivers/usb/misc/onboard_usb_dev.h @@ -3,67 +3,107 @@ * Copyright (c) 2022, Google LLC */ -#ifndef _USB_MISC_ONBOARD_USB_HUB_H -#define _USB_MISC_ONBOARD_USB_HUB_H +#ifndef _USB_MISC_ONBOARD_USB_DEV_H +#define _USB_MISC_ONBOARD_USB_DEV_H -struct onboard_hub_pdata { +#define MAX_SUPPLIES 2 + +struct onboard_dev_pdata { unsigned long reset_us; /* reset pulse width in us */ + unsigned long power_on_delay_us; /* power on delay in us */ unsigned int num_supplies; /* number of supplies */ + const char * const supply_names[MAX_SUPPLIES]; + bool is_hub; }; -static const struct onboard_hub_pdata microchip_usb424_data = { +static const struct onboard_dev_pdata microchip_usb424_data = { .reset_us = 1, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, +}; + +static const struct onboard_dev_pdata microchip_usb2514_data = { + .reset_us = 1, + .num_supplies = 2, + .supply_names = { "vdd", "vdda" }, + .is_hub = true, }; -static const struct onboard_hub_pdata microchip_usb5744_data = { +static const struct onboard_dev_pdata microchip_usb5744_data = { .reset_us = 0, + .power_on_delay_us = 10000, .num_supplies = 2, + .supply_names = { "vdd", "vdd2" }, + .is_hub = true, }; -static const struct onboard_hub_pdata realtek_rts5411_data = { +static const struct onboard_dev_pdata realtek_rts5411_data = { .reset_us = 0, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, }; -static const struct onboard_hub_pdata ti_tusb8020b_data = { +static const struct onboard_dev_pdata ti_tusb8020b_data = { .reset_us = 3000, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, }; -static const struct onboard_hub_pdata ti_tusb8041_data = { +static const struct onboard_dev_pdata ti_tusb8041_data = { .reset_us = 3000, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, }; -static const struct onboard_hub_pdata cypress_hx3_data = { +static const struct onboard_dev_pdata cypress_hx3_data = { .reset_us = 10000, .num_supplies = 2, + .supply_names = { "vdd", "vdd2" }, + .is_hub = true, }; -static const struct onboard_hub_pdata cypress_hx2vl_data = { +static const struct onboard_dev_pdata cypress_hx2vl_data = { .reset_us = 1, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, }; -static const struct onboard_hub_pdata genesys_gl850g_data = { +static const struct onboard_dev_pdata genesys_gl850g_data = { .reset_us = 3, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, }; -static const struct onboard_hub_pdata genesys_gl852g_data = { +static const struct onboard_dev_pdata genesys_gl852g_data = { .reset_us = 50, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, }; -static const struct onboard_hub_pdata vialab_vl817_data = { +static const struct onboard_dev_pdata vialab_vl817_data = { .reset_us = 10, .num_supplies = 1, + .supply_names = { "vdd" }, + .is_hub = true, +}; + +static const struct onboard_dev_pdata xmos_xvf3500_data = { + .reset_us = 1, + .num_supplies = 2, + .supply_names = { "vdd", "vddio" }, + .is_hub = false, }; -static const struct of_device_id onboard_hub_match[] = { +static const struct of_device_id onboard_dev_match[] = { { .compatible = "usb424,2412", .data = µchip_usb424_data, }, - { .compatible = "usb424,2514", .data = µchip_usb424_data, }, + { .compatible = "usb424,2514", .data = µchip_usb2514_data, }, { .compatible = "usb424,2517", .data = µchip_usb424_data, }, { .compatible = "usb424,2744", .data = µchip_usb5744_data, }, { .compatible = "usb424,5744", .data = µchip_usb5744_data, }, @@ -84,7 +124,8 @@ static const struct of_device_id onboard_hub_match[] = { { .compatible = "usbbda,5414", .data = &realtek_rts5411_data, }, { .compatible = "usb2109,817", .data = &vialab_vl817_data, }, { .compatible = "usb2109,2817", .data = &vialab_vl817_data, }, + { .compatible = "usb20b1,0013", .data = &xmos_xvf3500_data, }, {} }; -#endif /* _USB_MISC_ONBOARD_USB_HUB_H */ +#endif /* _USB_MISC_ONBOARD_USB_DEV_H */ diff --git a/drivers/usb/misc/onboard_usb_hub_pdevs.c b/drivers/usb/misc/onboard_usb_dev_pdevs.c index ed22a18f4ab7..722504752ce3 100644 --- a/drivers/usb/misc/onboard_usb_hub_pdevs.c +++ b/drivers/usb/misc/onboard_usb_dev_pdevs.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * API for creating and destroying USB onboard hub platform devices + * API for creating and destroying USB onboard platform devices * * Copyright (c) 2022, Google LLC */ @@ -15,29 +15,30 @@ #include <linux/usb.h> #include <linux/usb/hcd.h> #include <linux/usb/of.h> -#include <linux/usb/onboard_hub.h> +#include <linux/usb/onboard_dev.h> -#include "onboard_usb_hub.h" +#include "onboard_usb_dev.h" struct pdev_list_entry { struct platform_device *pdev; struct list_head node; }; -static bool of_is_onboard_usb_hub(const struct device_node *np) +static bool of_is_onboard_usb_dev(struct device_node *np) { - return !!of_match_node(onboard_hub_match, np); + return !!of_match_node(onboard_dev_match, np); } /** - * onboard_hub_create_pdevs -- create platform devices for onboard USB hubs - * @parent_hub : parent hub to scan for connected onboard hubs - * @pdev_list : list of onboard hub platform devices owned by the parent hub + * onboard_dev_create_pdevs -- create platform devices for onboard USB devices + * @parent_hub : parent hub to scan for connected onboard devices + * @pdev_list : list of onboard platform devices owned by the parent hub * - * Creates a platform device for each supported onboard hub that is connected to - * the given parent hub. The platform device is in charge of initializing the - * hub (enable regulators, take the hub out of reset, ...) and can optionally - * control whether the hub remains powered during system suspend or not. + * Creates a platform device for each supported onboard device that is connected + * to the given parent hub. The platform device is in charge of initializing the + * device (enable regulators, take the device out of reset, ...). For onboard + * hubs, it can optionally control whether the device remains powered during + * system suspend or not. * * To keep track of the platform devices they are added to a list that is owned * by the parent hub. @@ -50,9 +51,9 @@ static bool of_is_onboard_usb_hub(const struct device_node *np) * node. That means the root hubs of the primary and secondary HCD share the * same device tree node (the HCD node). As a result this function can be called * twice with the same DT node for root hubs. We only want to create a single - * platform device for each physical onboard hub, hence for root hubs the loop - * is only executed for the root hub of the primary HCD. Since the function - * scans through all child nodes it still creates pdevs for onboard hubs + * platform device for each physical onboard device, hence for root hubs the + * loop is only executed for the root hub of the primary HCD. Since the function + * scans through all child nodes it still creates pdevs for onboard devices * connected to the root hub of the secondary HCD if needed. * * Further there must be only one platform device for onboard hubs with a peer @@ -63,7 +64,7 @@ static bool of_is_onboard_usb_hub(const struct device_node *np) * the function processes the nodes of both peers. A platform device is only * created if the peer hub doesn't have one already. */ -void onboard_hub_create_pdevs(struct usb_device *parent_hub, struct list_head *pdev_list) +void onboard_dev_create_pdevs(struct usb_device *parent_hub, struct list_head *pdev_list) { int i; struct usb_hcd *hcd = bus_to_hcd(parent_hub->bus); @@ -82,7 +83,7 @@ void onboard_hub_create_pdevs(struct usb_device *parent_hub, struct list_head *p if (!np) continue; - if (!of_is_onboard_usb_hub(np)) + if (!of_is_onboard_usb_dev(np)) goto node_put; npc = of_parse_phandle(np, "peer-hub", 0); @@ -104,7 +105,7 @@ void onboard_hub_create_pdevs(struct usb_device *parent_hub, struct list_head *p pdev = of_platform_device_create(np, NULL, &parent_hub->dev); if (!pdev) { dev_err(&parent_hub->dev, - "failed to create platform device for onboard hub '%pOF'\n", np); + "failed to create platform device for onboard dev '%pOF'\n", np); goto node_put; } @@ -121,16 +122,16 @@ node_put: of_node_put(np); } } -EXPORT_SYMBOL_GPL(onboard_hub_create_pdevs); +EXPORT_SYMBOL_GPL(onboard_dev_create_pdevs); /** - * onboard_hub_destroy_pdevs -- free resources of onboard hub platform devices - * @pdev_list : list of onboard hub platform devices + * onboard_dev_destroy_pdevs -- free resources of onboard platform devices + * @pdev_list : list of onboard platform devices * * Destroys the platform devices in the given list and frees the memory associated * with the list entry. */ -void onboard_hub_destroy_pdevs(struct list_head *pdev_list) +void onboard_dev_destroy_pdevs(struct list_head *pdev_list) { struct pdev_list_entry *pdle, *tmp; @@ -140,4 +141,4 @@ void onboard_hub_destroy_pdevs(struct list_head *pdev_list) kfree(pdle); } } -EXPORT_SYMBOL_GPL(onboard_hub_destroy_pdevs); +EXPORT_SYMBOL_GPL(onboard_dev_destroy_pdevs); diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c deleted file mode 100644 index d8049275a023..000000000000 --- a/drivers/usb/misc/onboard_usb_hub.c +++ /dev/null @@ -1,507 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Driver for onboard USB hubs - * - * Copyright (c) 2022, Google LLC - */ - -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/export.h> -#include <linux/err.h> -#include <linux/gpio/consumer.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/of.h> -#include <linux/of_platform.h> -#include <linux/platform_device.h> -#include <linux/regulator/consumer.h> -#include <linux/slab.h> -#include <linux/suspend.h> -#include <linux/sysfs.h> -#include <linux/usb.h> -#include <linux/usb/hcd.h> -#include <linux/usb/onboard_hub.h> -#include <linux/workqueue.h> - -#include "onboard_usb_hub.h" - -/* - * Use generic names, as the actual names might differ between hubs. If a new - * hub requires more than the currently supported supplies, add a new one here. - */ -static const char * const supply_names[] = { - "vdd", - "vdd2", -}; - -#define MAX_SUPPLIES ARRAY_SIZE(supply_names) - -static void onboard_hub_attach_usb_driver(struct work_struct *work); - -static struct usb_device_driver onboard_hub_usbdev_driver; -static DECLARE_WORK(attach_usb_driver_work, onboard_hub_attach_usb_driver); - -/************************** Platform driver **************************/ - -struct usbdev_node { - struct usb_device *udev; - struct list_head list; -}; - -struct onboard_hub { - struct regulator_bulk_data supplies[MAX_SUPPLIES]; - struct device *dev; - const struct onboard_hub_pdata *pdata; - struct gpio_desc *reset_gpio; - bool always_powered_in_suspend; - bool is_powered_on; - bool going_away; - struct list_head udev_list; - struct mutex lock; - struct clk *clk; -}; - -static int onboard_hub_power_on(struct onboard_hub *hub) -{ - int err; - - err = clk_prepare_enable(hub->clk); - if (err) { - dev_err(hub->dev, "failed to enable clock: %pe\n", ERR_PTR(err)); - return err; - } - - err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies); - if (err) { - dev_err(hub->dev, "failed to enable supplies: %pe\n", ERR_PTR(err)); - goto disable_clk; - } - - fsleep(hub->pdata->reset_us); - gpiod_set_value_cansleep(hub->reset_gpio, 0); - - hub->is_powered_on = true; - - return 0; - -disable_clk: - clk_disable_unprepare(hub->clk); - return err; -} - -static int onboard_hub_power_off(struct onboard_hub *hub) -{ - int err; - - gpiod_set_value_cansleep(hub->reset_gpio, 1); - - err = regulator_bulk_disable(hub->pdata->num_supplies, hub->supplies); - if (err) { - dev_err(hub->dev, "failed to disable supplies: %pe\n", ERR_PTR(err)); - return err; - } - - clk_disable_unprepare(hub->clk); - - hub->is_powered_on = false; - - return 0; -} - -static int __maybe_unused onboard_hub_suspend(struct device *dev) -{ - struct onboard_hub *hub = dev_get_drvdata(dev); - struct usbdev_node *node; - bool power_off = true; - - if (hub->always_powered_in_suspend) - return 0; - - mutex_lock(&hub->lock); - - list_for_each_entry(node, &hub->udev_list, list) { - if (!device_may_wakeup(node->udev->bus->controller)) - continue; - - if (usb_wakeup_enabled_descendants(node->udev)) { - power_off = false; - break; - } - } - - mutex_unlock(&hub->lock); - - if (!power_off) - return 0; - - return onboard_hub_power_off(hub); -} - -static int __maybe_unused onboard_hub_resume(struct device *dev) -{ - struct onboard_hub *hub = dev_get_drvdata(dev); - - if (hub->is_powered_on) - return 0; - - return onboard_hub_power_on(hub); -} - -static inline void get_udev_link_name(const struct usb_device *udev, char *buf, size_t size) -{ - snprintf(buf, size, "usb_dev.%s", dev_name(&udev->dev)); -} - -static int onboard_hub_add_usbdev(struct onboard_hub *hub, struct usb_device *udev) -{ - struct usbdev_node *node; - char link_name[64]; - int err; - - mutex_lock(&hub->lock); - - if (hub->going_away) { - err = -EINVAL; - goto error; - } - - node = kzalloc(sizeof(*node), GFP_KERNEL); - if (!node) { - err = -ENOMEM; - goto error; - } - - node->udev = udev; - - list_add(&node->list, &hub->udev_list); - - mutex_unlock(&hub->lock); - - get_udev_link_name(udev, link_name, sizeof(link_name)); - WARN_ON(sysfs_create_link(&hub->dev->kobj, &udev->dev.kobj, link_name)); - - return 0; - -error: - mutex_unlock(&hub->lock); - - return err; -} - -static void onboard_hub_remove_usbdev(struct onboard_hub *hub, const struct usb_device *udev) -{ - struct usbdev_node *node; - char link_name[64]; - - get_udev_link_name(udev, link_name, sizeof(link_name)); - sysfs_remove_link(&hub->dev->kobj, link_name); - - mutex_lock(&hub->lock); - - list_for_each_entry(node, &hub->udev_list, list) { - if (node->udev == udev) { - list_del(&node->list); - kfree(node); - break; - } - } - - mutex_unlock(&hub->lock); -} - -static ssize_t always_powered_in_suspend_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - const struct onboard_hub *hub = dev_get_drvdata(dev); - - return sysfs_emit(buf, "%d\n", hub->always_powered_in_suspend); -} - -static ssize_t always_powered_in_suspend_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct onboard_hub *hub = dev_get_drvdata(dev); - bool val; - int ret; - - ret = kstrtobool(buf, &val); - if (ret < 0) - return ret; - - hub->always_powered_in_suspend = val; - - return count; -} -static DEVICE_ATTR_RW(always_powered_in_suspend); - -static struct attribute *onboard_hub_attrs[] = { - &dev_attr_always_powered_in_suspend.attr, - NULL, -}; -ATTRIBUTE_GROUPS(onboard_hub); - -static void onboard_hub_attach_usb_driver(struct work_struct *work) -{ - int err; - - err = driver_attach(&onboard_hub_usbdev_driver.driver); - if (err) - pr_err("Failed to attach USB driver: %pe\n", ERR_PTR(err)); -} - -static int onboard_hub_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct onboard_hub *hub; - unsigned int i; - int err; - - hub = devm_kzalloc(dev, sizeof(*hub), GFP_KERNEL); - if (!hub) - return -ENOMEM; - - hub->pdata = device_get_match_data(dev); - if (!hub->pdata) - return -EINVAL; - - if (hub->pdata->num_supplies > MAX_SUPPLIES) - return dev_err_probe(dev, -EINVAL, "max %zu supplies supported!\n", - MAX_SUPPLIES); - - for (i = 0; i < hub->pdata->num_supplies; i++) - hub->supplies[i].supply = supply_names[i]; - - err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies); - if (err) { - dev_err(dev, "Failed to get regulator supplies: %pe\n", ERR_PTR(err)); - return err; - } - - hub->clk = devm_clk_get_optional(dev, NULL); - if (IS_ERR(hub->clk)) - return dev_err_probe(dev, PTR_ERR(hub->clk), "failed to get clock\n"); - - hub->reset_gpio = devm_gpiod_get_optional(dev, "reset", - GPIOD_OUT_HIGH); - if (IS_ERR(hub->reset_gpio)) - return dev_err_probe(dev, PTR_ERR(hub->reset_gpio), "failed to get reset GPIO\n"); - - hub->dev = dev; - mutex_init(&hub->lock); - INIT_LIST_HEAD(&hub->udev_list); - - dev_set_drvdata(dev, hub); - - err = onboard_hub_power_on(hub); - if (err) - return err; - - /* - * The USB driver might have been detached from the USB devices by - * onboard_hub_remove() (e.g. through an 'unbind' by userspace), - * make sure to re-attach it if needed. - * - * This needs to be done deferred to avoid self-deadlocks on systems - * with nested onboard hubs. - */ - schedule_work(&attach_usb_driver_work); - - return 0; -} - -static void onboard_hub_remove(struct platform_device *pdev) -{ - struct onboard_hub *hub = dev_get_drvdata(&pdev->dev); - struct usbdev_node *node; - struct usb_device *udev; - - hub->going_away = true; - - mutex_lock(&hub->lock); - - /* unbind the USB devices to avoid dangling references to this device */ - while (!list_empty(&hub->udev_list)) { - node = list_first_entry(&hub->udev_list, struct usbdev_node, list); - udev = node->udev; - - /* - * Unbinding the driver will call onboard_hub_remove_usbdev(), - * which acquires hub->lock. We must release the lock first. - */ - get_device(&udev->dev); - mutex_unlock(&hub->lock); - device_release_driver(&udev->dev); - put_device(&udev->dev); - mutex_lock(&hub->lock); - } - - mutex_unlock(&hub->lock); - - onboard_hub_power_off(hub); -} - -MODULE_DEVICE_TABLE(of, onboard_hub_match); - -static const struct dev_pm_ops __maybe_unused onboard_hub_pm_ops = { - SET_LATE_SYSTEM_SLEEP_PM_OPS(onboard_hub_suspend, onboard_hub_resume) -}; - -static struct platform_driver onboard_hub_driver = { - .probe = onboard_hub_probe, - .remove_new = onboard_hub_remove, - - .driver = { - .name = "onboard-usb-hub", - .of_match_table = onboard_hub_match, - .pm = pm_ptr(&onboard_hub_pm_ops), - .dev_groups = onboard_hub_groups, - }, -}; - -/************************** USB driver **************************/ - -#define VENDOR_ID_CYPRESS 0x04b4 -#define VENDOR_ID_GENESYS 0x05e3 -#define VENDOR_ID_MICROCHIP 0x0424 -#define VENDOR_ID_REALTEK 0x0bda -#define VENDOR_ID_TI 0x0451 -#define VENDOR_ID_VIA 0x2109 - -/* - * Returns the onboard_hub platform device that is associated with the USB - * device passed as parameter. - */ -static struct onboard_hub *_find_onboard_hub(struct device *dev) -{ - struct platform_device *pdev; - struct device_node *np; - struct onboard_hub *hub; - - pdev = of_find_device_by_node(dev->of_node); - if (!pdev) { - np = of_parse_phandle(dev->of_node, "peer-hub", 0); - if (!np) { - dev_err(dev, "failed to find device node for peer hub\n"); - return ERR_PTR(-EINVAL); - } - - pdev = of_find_device_by_node(np); - of_node_put(np); - - if (!pdev) - return ERR_PTR(-ENODEV); - } - - hub = dev_get_drvdata(&pdev->dev); - put_device(&pdev->dev); - - /* - * The presence of drvdata ('hub') indicates that the platform driver - * finished probing. This handles the case where (conceivably) we could - * be running at the exact same time as the platform driver's probe. If - * we detect the race we request probe deferral and we'll come back and - * try again. - */ - if (!hub) - return ERR_PTR(-EPROBE_DEFER); - - return hub; -} - -static int onboard_hub_usbdev_probe(struct usb_device *udev) -{ - struct device *dev = &udev->dev; - struct onboard_hub *hub; - int err; - - /* ignore supported hubs without device tree node */ - if (!dev->of_node) - return -ENODEV; - - hub = _find_onboard_hub(dev); - if (IS_ERR(hub)) - return PTR_ERR(hub); - - dev_set_drvdata(dev, hub); - - err = onboard_hub_add_usbdev(hub, udev); - if (err) - return err; - - return 0; -} - -static void onboard_hub_usbdev_disconnect(struct usb_device *udev) -{ - struct onboard_hub *hub = dev_get_drvdata(&udev->dev); - - onboard_hub_remove_usbdev(hub, udev); -} - -static const struct usb_device_id onboard_hub_id_table[] = { - { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6504) }, /* CYUSB33{0,1,2}x/CYUSB230x 3.0 */ - { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6506) }, /* CYUSB33{0,1,2}x/CYUSB230x 2.0 */ - { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6570) }, /* CY7C6563x 2.0 */ - { USB_DEVICE(VENDOR_ID_GENESYS, 0x0608) }, /* Genesys Logic GL850G USB 2.0 */ - { USB_DEVICE(VENDOR_ID_GENESYS, 0x0610) }, /* Genesys Logic GL852G USB 2.0 */ - { USB_DEVICE(VENDOR_ID_GENESYS, 0x0620) }, /* Genesys Logic GL3523 USB 3.1 */ - { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2412) }, /* USB2412 USB 2.0 */ - { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2514) }, /* USB2514B USB 2.0 */ - { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2517) }, /* USB2517 USB 2.0 */ - { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2744) }, /* USB5744 USB 2.0 */ - { USB_DEVICE(VENDOR_ID_MICROCHIP, 0x5744) }, /* USB5744 USB 3.0 */ - { USB_DEVICE(VENDOR_ID_REALTEK, 0x0411) }, /* RTS5411 USB 3.1 */ - { USB_DEVICE(VENDOR_ID_REALTEK, 0x5411) }, /* RTS5411 USB 2.1 */ - { USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 */ - { USB_DEVICE(VENDOR_ID_REALTEK, 0x5414) }, /* RTS5414 USB 2.1 */ - { USB_DEVICE(VENDOR_ID_TI, 0x8025) }, /* TI USB8020B 3.0 */ - { USB_DEVICE(VENDOR_ID_TI, 0x8027) }, /* TI USB8020B 2.0 */ - { USB_DEVICE(VENDOR_ID_TI, 0x8140) }, /* TI USB8041 3.0 */ - { USB_DEVICE(VENDOR_ID_TI, 0x8142) }, /* TI USB8041 2.0 */ - { USB_DEVICE(VENDOR_ID_VIA, 0x0817) }, /* VIA VL817 3.1 */ - { USB_DEVICE(VENDOR_ID_VIA, 0x2817) }, /* VIA VL817 2.0 */ - {} -}; -MODULE_DEVICE_TABLE(usb, onboard_hub_id_table); - -static struct usb_device_driver onboard_hub_usbdev_driver = { - .name = "onboard-usb-hub", - .probe = onboard_hub_usbdev_probe, - .disconnect = onboard_hub_usbdev_disconnect, - .generic_subclass = 1, - .supports_autosuspend = 1, - .id_table = onboard_hub_id_table, -}; - -static int __init onboard_hub_init(void) -{ - int ret; - - ret = usb_register_device_driver(&onboard_hub_usbdev_driver, THIS_MODULE); - if (ret) - return ret; - - ret = platform_driver_register(&onboard_hub_driver); - if (ret) - usb_deregister_device_driver(&onboard_hub_usbdev_driver); - - return ret; -} -module_init(onboard_hub_init); - -static void __exit onboard_hub_exit(void) -{ - usb_deregister_device_driver(&onboard_hub_usbdev_driver); - platform_driver_unregister(&onboard_hub_driver); - - cancel_work_sync(&attach_usb_driver_work); -} -module_exit(onboard_hub_exit); - -MODULE_AUTHOR("Matthias Kaehlcke <mka@chromium.org>"); -MODULE_DESCRIPTION("Driver for discrete onboard USB hubs"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/misc/qcom_eud.c b/drivers/usb/misc/qcom_eud.c index 26e9b8749d8a..83079c414b4f 100644 --- a/drivers/usb/misc/qcom_eud.c +++ b/drivers/usb/misc/qcom_eud.c @@ -232,14 +232,14 @@ static void eud_remove(struct platform_device *pdev) } static const struct of_device_id eud_dt_match[] = { - { .compatible = "qcom,sc7280-eud" }, + { .compatible = "qcom,eud" }, { } }; MODULE_DEVICE_TABLE(of, eud_dt_match); static struct platform_driver eud_driver = { .probe = eud_probe, - .remove_new = eud_remove, + .remove = eud_remove, .driver = { .name = "qcom_eud", .dev_groups = eud_groups, diff --git a/drivers/usb/misc/usb-ljca.c b/drivers/usb/misc/usb-ljca.c index 2d30fc1be306..c562630d862c 100644 --- a/drivers/usb/misc/usb-ljca.c +++ b/drivers/usb/misc/usb-ljca.c @@ -18,7 +18,7 @@ #include <linux/usb.h> #include <linux/usb/ljca.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> /* command flags */ #define LJCA_ACK_FLAG BIT(0) @@ -169,6 +169,7 @@ static const struct acpi_device_id ljca_gpio_hids[] = { { "INTC1096" }, { "INTC100B" }, { "INTC10D1" }, + { "INTC10B5" }, {}, }; @@ -331,14 +332,11 @@ static int ljca_send(struct ljca_adapter *adap, u8 type, u8 cmd, ret = usb_bulk_msg(adap->usb_dev, adap->tx_pipe, header, msg_len, &transferred, LJCA_WRITE_TIMEOUT_MS); - - usb_autopm_put_interface(adap->intf); - if (ret < 0) - goto out; + goto out_put; if (transferred != msg_len) { ret = -EIO; - goto out; + goto out_put; } if (ack) { @@ -346,11 +344,14 @@ static int ljca_send(struct ljca_adapter *adap, u8 type, u8 cmd, timeout); if (!ret) { ret = -ETIMEDOUT; - goto out; + goto out_put; } } ret = adap->actual_length; +out_put: + usb_autopm_put_interface(adap->intf); + out: spin_lock_irqsave(&adap->lock, flags); adap->ex_buf = NULL; @@ -371,7 +372,7 @@ int ljca_transfer(struct ljca_client *client, u8 cmd, const u8 *obuf, obuf, obuf_len, ibuf, ibuf_len, true, LJCA_WRITE_ACK_TIMEOUT_MS); } -EXPORT_SYMBOL_NS_GPL(ljca_transfer, LJCA); +EXPORT_SYMBOL_NS_GPL(ljca_transfer, "LJCA"); int ljca_transfer_noack(struct ljca_client *client, u8 cmd, const u8 *obuf, u8 obuf_len) @@ -379,7 +380,7 @@ int ljca_transfer_noack(struct ljca_client *client, u8 cmd, const u8 *obuf, return ljca_send(client->adapter, client->type, cmd, obuf, obuf_len, NULL, 0, false, LJCA_WRITE_ACK_TIMEOUT_MS); } -EXPORT_SYMBOL_NS_GPL(ljca_transfer_noack, LJCA); +EXPORT_SYMBOL_NS_GPL(ljca_transfer_noack, "LJCA"); int ljca_register_event_cb(struct ljca_client *client, ljca_event_cb_t event_cb, void *context) @@ -403,7 +404,7 @@ int ljca_register_event_cb(struct ljca_client *client, ljca_event_cb_t event_cb, return 0; } -EXPORT_SYMBOL_NS_GPL(ljca_register_event_cb, LJCA); +EXPORT_SYMBOL_NS_GPL(ljca_register_event_cb, "LJCA"); void ljca_unregister_event_cb(struct ljca_client *client) { @@ -416,7 +417,7 @@ void ljca_unregister_event_cb(struct ljca_client *client) spin_unlock_irqrestore(&client->event_cb_lock, flags); } -EXPORT_SYMBOL_NS_GPL(ljca_unregister_event_cb, LJCA); +EXPORT_SYMBOL_NS_GPL(ljca_unregister_event_cb, "LJCA"); static int ljca_match_device_ids(struct acpi_device *adev, void *data) { @@ -810,6 +811,14 @@ static int ljca_probe(struct usb_interface *interface, if (ret) goto err_free; + /* + * This works around problems with ov2740 initialization on some + * Lenovo platforms. The autosuspend delay, has to be smaller than + * the delay after setting the reset_gpio line in ov2740_resume(). + * Otherwise the sensor randomly fails to initialize. + */ + pm_runtime_set_autosuspend_delay(&usb_dev->dev, 10); + usb_enable_autosuspend(usb_dev); return 0; diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 7da404f55a6d..4fb453ca5450 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -382,11 +382,9 @@ static void usb251xb_get_ports_field(struct usb251xb *hub, bool ds_only, u8 *fld) { struct device *dev = hub->dev; - struct property *prop; - const __be32 *p; u32 port; - of_property_for_each_u32(dev->of_node, prop_name, prop, p, port) { + of_property_for_each_u32(dev->of_node, prop_name, port) { if ((port >= ds_only ? 1 : 0) && (port <= port_cnt)) *fld |= BIT(port); else @@ -638,10 +636,8 @@ static int usb251xb_probe(struct usb251xb *hub) if (np && usb_data) { err = usb251xb_get_ofdata(hub, usb_data); - if (err) { - dev_err(dev, "failed to get ofdata: %d\n", err); - return err; - } + if (err) + return dev_err_probe(dev, err, "failed to get ofdata\n"); } /* @@ -726,15 +722,15 @@ static int __maybe_unused usb251xb_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(usb251xb_pm_ops, usb251xb_suspend, usb251xb_resume); static const struct i2c_device_id usb251xb_id[] = { - { "usb2422", 0 }, - { "usb2512b", 0 }, - { "usb2512bi", 0 }, - { "usb2513b", 0 }, - { "usb2513bi", 0 }, - { "usb2514b", 0 }, - { "usb2514bi", 0 }, - { "usb2517", 0 }, - { "usb2517i", 0 }, + { "usb2422" }, + { "usb2512b" }, + { "usb2512bi" }, + { "usb2513b" }, + { "usb2513bi" }, + { "usb2514b" }, + { "usb2514bi" }, + { "usb2517" }, + { "usb2517i" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, usb251xb_id); diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c index 72765077932c..322e59381b78 100644 --- a/drivers/usb/misc/usb3503.c +++ b/drivers/usb/misc/usb3503.c @@ -390,7 +390,7 @@ static SIMPLE_DEV_PM_OPS(usb3503_platform_pm_ops, usb3503_platform_suspend, usb3503_platform_resume); static const struct i2c_device_id usb3503_id[] = { - { USB3503_I2C_NAME, 0 }, + { USB3503_I2C_NAME }, { } }; MODULE_DEVICE_TABLE(i2c, usb3503_id); @@ -423,7 +423,7 @@ static struct platform_driver usb3503_platform_driver = { .pm = pm_ptr(&usb3503_platform_pm_ops), }, .probe = usb3503_platform_probe, - .remove_new = usb3503_platform_remove, + .remove = usb3503_platform_remove, }; static int __init usb3503_init(void) diff --git a/drivers/usb/misc/usb4604.c b/drivers/usb/misc/usb4604.c index 065e269ba4e3..c9a2fb3518ae 100644 --- a/drivers/usb/misc/usb4604.c +++ b/drivers/usb/misc/usb4604.c @@ -135,7 +135,7 @@ static SIMPLE_DEV_PM_OPS(usb4604_i2c_pm_ops, usb4604_i2c_suspend, usb4604_i2c_resume); static const struct i2c_device_id usb4604_id[] = { - { "usb4604", 0 }, + { "usb4604" }, { } }; MODULE_DEVICE_TABLE(i2c, usb4604_id); diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index caf65f8294db..7c2041f61cde 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -626,11 +626,11 @@ static int perform_sglist( mod_timer(&timeout.timer, jiffies + msecs_to_jiffies(SIMPLE_IO_TIMEOUT)); usb_sg_wait(req); - if (!del_timer_sync(&timeout.timer)) + if (!timer_delete_sync(&timeout.timer)) retval = -ETIMEDOUT; else retval = req->status; - destroy_timer_on_stack(&timeout.timer); + timer_destroy_on_stack(&timeout.timer); /* FIXME check resulting data pattern */ @@ -2021,7 +2021,8 @@ static struct urb *iso_alloc_urb( for (i = 0; i < packets; i++) { /* here, only the last packet will be short */ - urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp); + urb->iso_frame_desc[i].length = min_t(unsigned int, + bytes, maxp); bytes -= urb->iso_frame_desc[i].length; urb->iso_frame_desc[i].offset = maxp * i; diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index b00d92db5dfd..b26c1d382d59 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -677,7 +677,7 @@ static int uss720_probe(struct usb_interface *intf, struct parport_uss720_private *priv; struct parport *pp; unsigned char reg; - int i; + int ret; dev_dbg(&intf->dev, "probe: vendor id 0x%x, device id 0x%x\n", le16_to_cpu(usbdev->descriptor.idVendor), @@ -688,12 +688,12 @@ static int uss720_probe(struct usb_interface *intf, usb_put_dev(usbdev); return -ENODEV; } - i = usb_set_interface(usbdev, intf->altsetting->desc.bInterfaceNumber, 2); - dev_dbg(&intf->dev, "set interface result %d\n", i); + ret = usb_set_interface(usbdev, intf->altsetting->desc.bInterfaceNumber, 2); + dev_dbg(&intf->dev, "set interface result %d\n", ret); interface = intf->cur_altsetting; - if (interface->desc.bNumEndpoints < 3) { + if (interface->desc.bNumEndpoints < 2) { usb_put_dev(usbdev); return -ENODEV; } @@ -719,18 +719,27 @@ static int uss720_probe(struct usb_interface *intf, priv->pp = pp; pp->private_data = priv; - pp->modes = PARPORT_MODE_PCSPP | PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP | PARPORT_MODE_ECP | PARPORT_MODE_COMPAT; + pp->modes = PARPORT_MODE_PCSPP | PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP | PARPORT_MODE_COMPAT; + if (interface->desc.bNumEndpoints >= 3) + pp->modes |= PARPORT_MODE_ECP; + pp->dev = &usbdev->dev; /* set the USS720 control register to manual mode, no ECP compression, enable all ints */ set_1284_register(pp, 7, 0x00, GFP_KERNEL); set_1284_register(pp, 6, 0x30, GFP_KERNEL); /* PS/2 mode */ set_1284_register(pp, 2, 0x0c, GFP_KERNEL); - /* debugging */ - get_1284_register(pp, 0, ®, GFP_KERNEL); + + /* The Belkin F5U002 Rev 2 P80453-B USB parallel port adapter shares the + * device ID 050d:0002 with some other device that works with this + * driver, but it itself does not. Detect and handle the bad cable + * here. */ + ret = get_1284_register(pp, 0, ®, GFP_KERNEL); dev_dbg(&intf->dev, "reg: %7ph\n", priv->reg); + if (ret < 0) + return ret; - i = usb_find_last_int_in_endpoint(interface, &epd); - if (!i) { + ret = usb_find_last_int_in_endpoint(interface, &epd); + if (!ret) { dev_dbg(&intf->dev, "epaddr %d interval %d\n", epd->bEndpointAddress, epd->bInterval); } @@ -766,14 +775,15 @@ static void uss720_disconnect(struct usb_interface *intf) /* table of cables that work through this driver */ static const struct usb_device_id uss720_table[] = { - { USB_DEVICE(0x047e, 0x1001) }, - { USB_DEVICE(0x04b8, 0x0002) }, - { USB_DEVICE(0x04b8, 0x0003) }, + { USB_DEVICE(0x047e, 0x1001) }, /* Infowave 901-0030 */ + { USB_DEVICE(0x04b8, 0x0002) }, /* Epson CAEUL0002 ISD-103 */ + { USB_DEVICE(0x04b8, 0x0003) }, /* Epson ISD-101 */ { USB_DEVICE(0x050d, 0x0002) }, - { USB_DEVICE(0x050d, 0x1202) }, + { USB_DEVICE(0x050d, 0x1202) }, /* Belkin F5U120-PC */ { USB_DEVICE(0x0557, 0x2001) }, - { USB_DEVICE(0x05ab, 0x0002) }, - { USB_DEVICE(0x06c6, 0x0100) }, + { USB_DEVICE(0x05ab, 0x0002) }, /* Belkin F5U002 ISD-101 */ + { USB_DEVICE(0x05ab, 0x1001) }, /* Belkin F5U002 P80453-A */ + { USB_DEVICE(0x06c6, 0x0100) }, /* Infowave ISD-103 */ { USB_DEVICE(0x0729, 0x1284) }, { USB_DEVICE(0x1293, 0x0002) }, { } /* Terminating entry */ diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 9a0649d23693..70dff0db5354 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -34,8 +34,6 @@ #define YUREX_BUF_SIZE 8 #define YUREX_WRITE_TIMEOUT (HZ*2) -#define MAX_S64_STRLEN 20 /* {-}922337203685477580{7,8} */ - /* table of devices that work with this driver */ static struct usb_device_id yurex_table[] = { { USB_DEVICE(YUREX_VENDOR_ID, YUREX_PRODUCT_ID) }, @@ -402,8 +400,8 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { struct usb_yurex *dev; - int len = 0; - char in_buffer[MAX_S64_STRLEN]; + int len; + char in_buffer[20]; unsigned long flags; dev = file->private_data; @@ -414,16 +412,14 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count, return -ENODEV; } - if (WARN_ON_ONCE(dev->bbu > S64_MAX || dev->bbu < S64_MIN)) { - mutex_unlock(&dev->io_mutex); - return -EIO; - } - spin_lock_irqsave(&dev->lock, flags); - scnprintf(in_buffer, MAX_S64_STRLEN, "%lld\n", dev->bbu); + len = snprintf(in_buffer, 20, "%lld\n", dev->bbu); spin_unlock_irqrestore(&dev->lock, flags); mutex_unlock(&dev->io_mutex); + if (WARN_ON_ONCE(len >= sizeof(in_buffer))) + return -EIO; + return simple_read_from_buffer(buffer, count, ppos, in_buffer, len); } @@ -445,7 +441,10 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer, if (count == 0) goto error; - mutex_lock(&dev->io_mutex); + retval = mutex_lock_interruptible(&dev->io_mutex); + if (retval < 0) + return -EINTR; + if (dev->disconnected) { /* already disconnected */ mutex_unlock(&dev->io_mutex); retval = -ENODEV; @@ -511,8 +510,11 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer, __func__, retval); goto error; } - if (set && timeout) + if (set && timeout) { + spin_lock_irq(&dev->lock); dev->bbu = c2; + spin_unlock_irq(&dev->lock); + } return timeout ? count : -EIO; error: @@ -531,4 +533,5 @@ static const struct file_operations yurex_fops = { module_usb_driver(yurex_driver); +MODULE_DESCRIPTION("USB YUREX driver support"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 4e30de4db1c0..c93b43f5bc46 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -823,7 +823,7 @@ static ssize_t mon_bin_read(struct file *file, char __user *buf, ep = MON_OFF2HDR(rp, rp->b_out); if (rp->b_read < hdrbytes) { - step_len = min(nbytes, (size_t)(hdrbytes - rp->b_read)); + step_len = min_t(size_t, nbytes, hdrbytes - rp->b_read); ptr = ((char *)ep) + rp->b_read; if (step_len && copy_to_user(buf, ptr, step_len)) { mutex_unlock(&rp->fetch_lock); @@ -1289,7 +1289,6 @@ static int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma) static const struct file_operations mon_fops_binary = { .owner = THIS_MODULE, .open = mon_bin_open, - .llseek = no_llseek, .read = mon_bin_read, /* .write = mon_text_write, */ .poll = mon_bin_poll, diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index 824904abe76f..af852d53aac6 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -419,4 +419,5 @@ static void __exit mon_exit(void) module_init(mon_init); module_exit(mon_exit); +MODULE_DESCRIPTION("USB Monitor"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c index 3c23805ab1a4..398e02af6a2b 100644 --- a/drivers/usb/mon/mon_stat.c +++ b/drivers/usb/mon/mon_stat.c @@ -62,7 +62,6 @@ static int mon_stat_release(struct inode *inode, struct file *file) const struct file_operations mon_fops_stat = { .owner = THIS_MODULE, .open = mon_stat_open, - .llseek = no_llseek, .read = mon_stat_read, /* .write = mon_stat_write, */ /* .poll = mon_stat_poll, */ diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index 2fe9b95bac1d..68b9b2b41189 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -685,7 +685,6 @@ static int mon_text_release(struct inode *inode, struct file *file) static const struct file_operations mon_fops_text_t = { .owner = THIS_MODULE, .open = mon_text_open, - .llseek = no_llseek, .read = mon_text_read_t, .release = mon_text_release, }; @@ -693,7 +692,6 @@ static const struct file_operations mon_fops_text_t = { static const struct file_operations mon_fops_text_u = { .owner = THIS_MODULE, .open = mon_text_open, - .llseek = no_llseek, .read = mon_text_read_u, .release = mon_text_release, }; diff --git a/drivers/usb/mtu3/Kconfig b/drivers/usb/mtu3/Kconfig index bf98fd36341d..d281da1cdbcc 100644 --- a/drivers/usb/mtu3/Kconfig +++ b/drivers/usb/mtu3/Kconfig @@ -21,7 +21,7 @@ config USB_MTU3 if USB_MTU3 choice - bool "MTU3 Mode Selection" + prompt "MTU3 Mode Selection" default USB_MTU3_DUAL_ROLE if (USB && USB_GADGET) default USB_MTU3_HOST if (USB && !USB_GADGET) default USB_MTU3_GADGET if (!USB && USB_GADGET) diff --git a/drivers/usb/mtu3/mtu3_debugfs.c b/drivers/usb/mtu3/mtu3_debugfs.c index f0de99858353..c003049bafbf 100644 --- a/drivers/usb/mtu3/mtu3_debugfs.c +++ b/drivers/usb/mtu3/mtu3_debugfs.c @@ -7,6 +7,7 @@ * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> */ +#include <linux/string_choices.h> #include <linux/uaccess.h> #include "mtu3.h" @@ -256,16 +257,7 @@ static const struct mtu3_file_map mtu3_ep_files[] = { static int mtu3_ep_open(struct inode *inode, struct file *file) { - const char *file_name = file_dentry(file)->d_iname; - const struct mtu3_file_map *f_map; - int i; - - for (i = 0; i < ARRAY_SIZE(mtu3_ep_files); i++) { - f_map = &mtu3_ep_files[i]; - - if (strcmp(f_map->name, file_name) == 0) - break; - } + const struct mtu3_file_map *f_map = debugfs_get_aux(file); return single_open(file, f_map->show, inode->i_private); } @@ -288,17 +280,8 @@ static const struct debugfs_reg32 mtu3_prb_regs[] = { static int mtu3_probe_show(struct seq_file *sf, void *unused) { - const char *file_name = file_dentry(sf->file)->d_iname; struct mtu3 *mtu = sf->private; - const struct debugfs_reg32 *regs; - int i; - - for (i = 0; i < ARRAY_SIZE(mtu3_prb_regs); i++) { - regs = &mtu3_prb_regs[i]; - - if (strcmp(regs->name, file_name) == 0) - break; - } + const struct debugfs_reg32 *regs = debugfs_get_aux(sf->file); seq_printf(sf, "0x%04x - 0x%08x\n", (u32)regs->offset, mtu3_readl(mtu->ippc_base, (u32)regs->offset)); @@ -314,13 +297,11 @@ static int mtu3_probe_open(struct inode *inode, struct file *file) static ssize_t mtu3_probe_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { - const char *file_name = file_dentry(file)->d_iname; struct seq_file *sf = file->private_data; struct mtu3 *mtu = sf->private; - const struct debugfs_reg32 *regs; + const struct debugfs_reg32 *regs = debugfs_get_aux(file); char buf[32]; u32 val; - int i; if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; @@ -328,12 +309,6 @@ static ssize_t mtu3_probe_write(struct file *file, const char __user *ubuf, if (kstrtou32(buf, 0, &val)) return -EINVAL; - for (i = 0; i < ARRAY_SIZE(mtu3_prb_regs); i++) { - regs = &mtu3_prb_regs[i]; - - if (strcmp(regs->name, file_name) == 0) - break; - } mtu3_writel(mtu->ippc_base, (u32)regs->offset, val); return count; @@ -358,8 +333,8 @@ static void mtu3_debugfs_create_prb_files(struct mtu3 *mtu) for (i = 0; i < ARRAY_SIZE(mtu3_prb_regs); i++) { regs = &mtu3_prb_regs[i]; - debugfs_create_file(regs->name, 0644, dir_prb, - mtu, &mtu3_probe_fops); + debugfs_create_file_aux(regs->name, 0644, dir_prb, + mtu, regs, &mtu3_probe_fops); } mtu3_debugfs_regset(mtu, mtu->ippc_base, mtu3_prb_regs, @@ -379,8 +354,8 @@ static void mtu3_debugfs_create_ep_dir(struct mtu3_ep *mep, for (i = 0; i < ARRAY_SIZE(mtu3_ep_files); i++) { files = &mtu3_ep_files[i]; - debugfs_create_file(files->name, 0444, dir_ep, - mep, &mtu3_ep_fops); + debugfs_create_file_aux(files->name, 0444, dir_ep, + mep, files, &mtu3_ep_fops); } } @@ -479,7 +454,7 @@ static int ssusb_vbus_show(struct seq_file *sf, void *unused) struct otg_switch_mtk *otg_sx = &ssusb->otg_switch; seq_printf(sf, "vbus state: %s\n(echo on/off)\n", - regulator_is_enabled(otg_sx->vbus) ? "on" : "off"); + str_on_off(regulator_is_enabled(otg_sx->vbus))); return 0; } diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c index 8191b7ed3852..ffa5b9401dad 100644 --- a/drivers/usb/mtu3/mtu3_dr.c +++ b/drivers/usb/mtu3/mtu3_dr.c @@ -7,6 +7,7 @@ * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> */ +#include <linux/string_choices.h> #include "mtu3.h" #include "mtu3_dr.h" #include "mtu3_debug.h" @@ -109,7 +110,7 @@ int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on) if (!vbus) return 0; - dev_dbg(ssusb->dev, "%s: turn %s\n", __func__, is_on ? "on" : "off"); + dev_dbg(ssusb->dev, "%s: turn %s\n", __func__, str_on_off(is_on)); if (is_on) { ret = regulator_enable(vbus); diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index ad0eeac4332d..bf73fbc29976 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -7,6 +7,7 @@ * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> */ +#include <linux/string_choices.h> #include "mtu3.h" #include "mtu3_trace.h" @@ -490,7 +491,7 @@ static int mtu3_gadget_pullup(struct usb_gadget *gadget, int is_on) unsigned long flags; dev_dbg(mtu->dev, "%s (%s) for %sactive device\n", __func__, - is_on ? "on" : "off", mtu->is_active ? "" : "in"); + str_on_off(is_on), mtu->is_active ? "" : "in"); pm_runtime_get_sync(mtu->dev); diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index 6858ed9fc3b2..7b5a431acb56 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -307,7 +307,7 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) if (otg_sx->role_sw_used || otg_sx->manual_drd_enabled) goto out; - if (of_property_read_bool(node, "extcon")) { + if (of_property_present(node, "extcon")) { otg_sx->edev = extcon_get_edev_by_phandle(ssusb->dev, 0); if (IS_ERR(otg_sx->edev)) { return dev_err_probe(dev, PTR_ERR(otg_sx->edev), @@ -621,7 +621,7 @@ MODULE_DEVICE_TABLE(of, mtu3_of_match); static struct platform_driver mtu3_driver = { .probe = mtu3_probe, - .remove_new = mtu3_remove, + .remove = mtu3_remove, .driver = { .name = MTU3_DRIVER_NAME, .pm = DEV_PM_OPS, diff --git a/drivers/usb/mtu3/mtu3_trace.h b/drivers/usb/mtu3/mtu3_trace.h index 03d2a9bac27e..89870175d635 100644 --- a/drivers/usb/mtu3/mtu3_trace.h +++ b/drivers/usb/mtu3/mtu3_trace.h @@ -26,7 +26,7 @@ TRACE_EVENT(mtu3_log, __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( - __assign_str(name, dev_name(dev)); + __assign_str(name); __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s: %s", __get_str(name), __get_str(msg)) @@ -127,7 +127,7 @@ DECLARE_EVENT_CLASS(mtu3_log_request, __field(int, no_interrupt) ), TP_fast_assign( - __assign_str(name, mreq->mep->name); + __assign_str(name); __entry->mreq = mreq; __entry->gpd = mreq->gpd; __entry->actual = mreq->request.actual; @@ -182,7 +182,7 @@ DECLARE_EVENT_CLASS(mtu3_log_gpd, __field(u32, dw3) ), TP_fast_assign( - __assign_str(name, mep->name); + __assign_str(name); __entry->gpd = gpd; __entry->dw0 = le32_to_cpu(gpd->dw0_info); __entry->dw1 = le32_to_cpu(gpd->next_gpd); @@ -226,7 +226,7 @@ DECLARE_EVENT_CLASS(mtu3_log_ep, __field(struct mtu3_gpd_ring *, gpd_ring) ), TP_fast_assign( - __assign_str(name, mep->name); + __assign_str(name); __entry->type = mep->type; __entry->slot = mep->slot; __entry->maxp = mep->ep.maxpacket; diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 9a8cf3de0617..9e45d12b81d3 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -29,7 +29,7 @@ config USB_MUSB_HDRC if USB_MUSB_HDRC choice - bool "MUSB Mode Selection" + prompt "MUSB Mode Selection" default USB_MUSB_DUAL_ROLE if (USB && USB_GADGET) default USB_MUSB_HOST if (USB && !USB_GADGET) default USB_MUSB_GADGET if (!USB && USB_GADGET) diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 8abf3a567e30..eebb24ab3ec8 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -21,6 +21,7 @@ #include <linux/of_platform.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> +#include <linux/string_choices.h> #include <linux/dma-mapping.h> #include <linux/usb/usb_phy_generic.h> @@ -191,7 +192,7 @@ static void otg_timer(struct timer_list *t) spin_unlock_irqrestore(&musb->lock, flags); } -static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) +static void __maybe_unused da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) { static unsigned long last_timer; @@ -203,7 +204,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) { dev_dbg(musb->controller, "%s active, deleting timer\n", usb_otg_state_string(musb->xceiv->otg->state)); - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); last_timer = jiffies; return; } @@ -220,6 +221,13 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) mod_timer(&musb->dev_timer, timeout); } +static int da8xx_babble_recover(struct musb *musb) +{ + dev_dbg(musb->controller, "resetting controller to recover from babble\n"); + musb_writel(musb->ctrl_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK); + return 0; +} + static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) { struct musb *musb = hci; @@ -282,7 +290,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) MUSB_HST_MODE(musb); musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE; portstate(musb->port1_status |= USB_PORT_STAT_POWER); - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); } else if (!(musb->int_usb & MUSB_INTR_BABBLE)) { /* * When babble condition happens, drvvbus interrupt @@ -299,7 +307,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) } dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", - drvvbus ? "on" : "off", + str_on_off(drvvbus), usb_otg_state_string(musb->xceiv->otg->state), err ? " ERROR" : "", devctl); @@ -328,13 +336,6 @@ static int da8xx_musb_set_mode(struct musb *musb, u8 musb_mode) struct da8xx_glue *glue = dev_get_drvdata(musb->controller->parent); enum phy_mode phy_mode; - /* - * The PHY has some issues when it is forced in device or host mode. - * Unless the user request another mode, configure the PHY in OTG mode. - */ - if (!musb->is_initialized) - return phy_set_mode(glue->phy, PHY_MODE_USB_OTG); - switch (musb_mode) { case MUSB_HOST: /* Force VBUS valid, ID = 0 */ phy_mode = PHY_MODE_USB_HOST; @@ -418,7 +419,7 @@ static int da8xx_musb_exit(struct musb *musb) { struct da8xx_glue *glue = dev_get_drvdata(musb->controller->parent); - del_timer_sync(&musb->dev_timer); + timer_delete_sync(&musb->dev_timer); phy_power_off(glue->phy); phy_exit(glue->phy); @@ -483,7 +484,11 @@ static const struct musb_platform_ops da8xx_ops = { .disable = da8xx_musb_disable, .set_mode = da8xx_musb_set_mode, + +#ifndef CONFIG_USB_MUSB_HOST .try_idle = da8xx_musb_try_idle, +#endif + .recover = da8xx_babble_recover, .set_vbus = da8xx_musb_set_vbus, }; @@ -556,7 +561,7 @@ static int da8xx_probe(struct platform_device *pdev) ret = of_platform_populate(pdev->dev.of_node, NULL, da8xx_auxdata_lookup, &pdev->dev); if (ret) - return ret; + goto err_unregister_phy; pinfo = da8xx_dev_info; pinfo.parent = &pdev->dev; @@ -571,9 +576,13 @@ static int da8xx_probe(struct platform_device *pdev) ret = PTR_ERR_OR_ZERO(glue->musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); - usb_phy_generic_unregister(glue->usb_phy); + goto err_unregister_phy; } + return 0; + +err_unregister_phy: + usb_phy_generic_unregister(glue->usb_phy); return ret; } @@ -625,7 +634,7 @@ MODULE_DEVICE_TABLE(of, da8xx_id_table); static struct platform_driver da8xx_driver = { .probe = da8xx_probe, - .remove_new = da8xx_remove, + .remove = da8xx_remove, .driver = { .name = "musb-da8xx", .pm = &da8xx_pm_ops, diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c index b38df9226278..df56c972986f 100644 --- a/drivers/usb/musb/jz4740.c +++ b/drivers/usb/musb/jz4740.c @@ -59,7 +59,7 @@ static irqreturn_t jz4740_musb_interrupt(int irq, void *__hci) return IRQ_NONE; } -static struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = { +static const struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 64, }, @@ -205,7 +205,7 @@ static const struct musb_hdrc_platform_data jz4740_musb_pdata = { .platform_ops = &jz4740_musb_ops, }; -static struct musb_fifo_cfg jz4770_musb_fifo_cfg[] = { +static const struct musb_fifo_cfg jz4770_musb_fifo_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -325,7 +325,7 @@ MODULE_DEVICE_TABLE(of, jz4740_musb_of_match); static struct platform_driver jz4740_driver = { .probe = jz4740_probe, - .remove_new = jz4740_remove, + .remove = jz4740_remove, .driver = { .name = "musb-jz4740", .of_match_table = jz4740_musb_of_match, diff --git a/drivers/usb/musb/mediatek.c b/drivers/usb/musb/mediatek.c index 0a35aab3ab81..c6cbe718b1da 100644 --- a/drivers/usb/musb/mediatek.c +++ b/drivers/usb/musb/mediatek.c @@ -365,7 +365,7 @@ static const struct musb_platform_ops mtk_musb_ops = { #define MTK_MUSB_MAX_EP_NUM 8 #define MTK_MUSB_RAM_BITS 11 -static struct musb_fifo_cfg mtk_musb_mode_cfg[] = { +static const struct musb_fifo_cfg mtk_musb_mode_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -416,10 +416,9 @@ static int mtk_musb_probe(struct platform_device *pdev) return -ENOMEM; ret = of_platform_populate(np, NULL, NULL, dev); - if (ret) { - dev_err(dev, "failed to create child devices at %p\n", np); - return ret; - } + if (ret) + return dev_err_probe(dev, ret, + "failed to create child devices at %p\n", np); ret = mtk_musb_clks_get(glue); if (ret) @@ -448,23 +447,19 @@ static int mtk_musb_probe(struct platform_device *pdev) glue->role = USB_ROLE_NONE; break; default: - dev_err(&pdev->dev, "Error 'dr_mode' property\n"); - return -EINVAL; + return dev_err_probe(&pdev->dev, -EINVAL, + "Error 'dr_mode' property\n"); } glue->phy = devm_of_phy_get_by_index(dev, np, 0); - if (IS_ERR(glue->phy)) { - dev_err(dev, "fail to getting phy %ld\n", - PTR_ERR(glue->phy)); - return PTR_ERR(glue->phy); - } + if (IS_ERR(glue->phy)) + return dev_err_probe(dev, PTR_ERR(glue->phy), + "fail to getting phy\n"); glue->usb_phy = usb_phy_generic_register(); - if (IS_ERR(glue->usb_phy)) { - dev_err(dev, "fail to registering usb-phy %ld\n", - PTR_ERR(glue->usb_phy)); - return PTR_ERR(glue->usb_phy); - } + if (IS_ERR(glue->usb_phy)) + return dev_err_probe(dev, PTR_ERR(glue->usb_phy), + "fail to registering usb-phy\n"); glue->xceiv = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); if (IS_ERR(glue->xceiv)) { @@ -528,7 +523,7 @@ MODULE_DEVICE_TABLE(of, mtk_musb_match); static struct platform_driver mtk_musb_driver = { .probe = mtk_musb_probe, - .remove_new = mtk_musb_remove, + .remove = mtk_musb_remove, .driver = { .name = "musb-mtk", .of_match_table = of_match_ptr(mtk_musb_match), diff --git a/drivers/usb/musb/mpfs.c b/drivers/usb/musb/mpfs.c index f0f56df38835..020348a98514 100644 --- a/drivers/usb/musb/mpfs.c +++ b/drivers/usb/musb/mpfs.c @@ -29,7 +29,7 @@ struct mpfs_glue { struct clk *clk; }; -static struct musb_fifo_cfg mpfs_musb_mode_cfg[] = { +static const struct musb_fifo_cfg mpfs_musb_mode_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -49,30 +49,6 @@ static const struct musb_hdrc_config mpfs_musb_hdrc_config = { .ram_bits = MPFS_MUSB_RAM_BITS, }; -static irqreturn_t mpfs_musb_interrupt(int irq, void *__hci) -{ - unsigned long flags; - irqreturn_t ret = IRQ_NONE; - struct musb *musb = __hci; - - spin_lock_irqsave(&musb->lock, flags); - - musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); - musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); - musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); - - if (musb->int_usb || musb->int_tx || musb->int_rx) { - musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb); - musb_writew(musb->mregs, MUSB_INTRTX, musb->int_tx); - musb_writew(musb->mregs, MUSB_INTRRX, musb->int_rx); - ret = musb_interrupt(musb); - } - - spin_unlock_irqrestore(&musb->lock, flags); - - return ret; -} - static void mpfs_musb_set_vbus(struct musb *musb, int is_on) { u8 devctl; @@ -111,6 +87,129 @@ static void mpfs_musb_set_vbus(struct musb *musb, int is_on) musb_readb(musb->mregs, MUSB_DEVCTL)); } +#define POLL_SECONDS 2 + +static void otg_timer(struct timer_list *t) +{ + struct musb *musb = from_timer(musb, t, dev_timer); + void __iomem *mregs = musb->mregs; + u8 devctl; + unsigned long flags; + + /* + * We poll because PolarFire SoC won't expose several OTG-critical + * status change events (from the transceiver) otherwise. + */ + devctl = musb_readb(mregs, MUSB_DEVCTL); + dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl, + usb_otg_state_string(musb->xceiv->otg->state)); + + spin_lock_irqsave(&musb->lock, flags); + switch (musb->xceiv->otg->state) { + case OTG_STATE_A_WAIT_BCON: + devctl &= ~MUSB_DEVCTL_SESSION; + musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); + + devctl = musb_readb(musb->mregs, MUSB_DEVCTL); + if (devctl & MUSB_DEVCTL_BDEVICE) { + musb->xceiv->otg->state = OTG_STATE_B_IDLE; + MUSB_DEV_MODE(musb); + mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ); + } else { + musb->xceiv->otg->state = OTG_STATE_A_IDLE; + MUSB_HST_MODE(musb); + } + break; + case OTG_STATE_A_WAIT_VFALL: + if (devctl & MUSB_DEVCTL_VBUS) { + mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ); + break; + } + musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE; + break; + case OTG_STATE_B_IDLE: + /* + * There's no ID-changed IRQ, so we have no good way to tell + * when to switch to the A-Default state machine (by setting + * the DEVCTL.Session bit). + * + * Workaround: whenever we're in B_IDLE, try setting the + * session flag every few seconds. If it works, ID was + * grounded and we're now in the A-Default state machine. + * + * NOTE: setting the session flag is _supposed_ to trigger + * SRP but clearly it doesn't. + */ + musb_writeb(mregs, MUSB_DEVCTL, devctl | MUSB_DEVCTL_SESSION); + devctl = musb_readb(mregs, MUSB_DEVCTL); + if (devctl & MUSB_DEVCTL_BDEVICE) + mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ); + else + musb->xceiv->otg->state = OTG_STATE_A_IDLE; + break; + default: + break; + } + spin_unlock_irqrestore(&musb->lock, flags); +} + +static void __maybe_unused mpfs_musb_try_idle(struct musb *musb, unsigned long timeout) +{ + static unsigned long last_timer; + + if (timeout == 0) + timeout = jiffies + msecs_to_jiffies(3); + + /* Never idle if active, or when VBUS timeout is not set as host */ + if (musb->is_active || (musb->a_wait_bcon == 0 && + musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) { + dev_dbg(musb->controller, "%s active, deleting timer\n", + usb_otg_state_string(musb->xceiv->otg->state)); + timer_delete(&musb->dev_timer); + last_timer = jiffies; + return; + } + + if (time_after(last_timer, timeout) && timer_pending(&musb->dev_timer)) { + dev_dbg(musb->controller, "Longer idle timer already pending, ignoring...\n"); + return; + } + last_timer = timeout; + + dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", + usb_otg_state_string(musb->xceiv->otg->state), + jiffies_to_msecs(timeout - jiffies)); + mod_timer(&musb->dev_timer, timeout); +} + +static irqreturn_t mpfs_musb_interrupt(int irq, void *__hci) +{ + unsigned long flags; + irqreturn_t ret = IRQ_NONE; + struct musb *musb = __hci; + + spin_lock_irqsave(&musb->lock, flags); + + musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); + musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); + musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); + + if (musb->int_usb || musb->int_tx || musb->int_rx) { + musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb); + musb_writew(musb->mregs, MUSB_INTRTX, musb->int_tx); + musb_writew(musb->mregs, MUSB_INTRRX, musb->int_rx); + ret = musb_interrupt(musb); + } + + /* Poll for ID change */ + if (musb->xceiv->otg->state == OTG_STATE_B_IDLE) + mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ); + + spin_unlock_irqrestore(&musb->lock, flags); + + return ret; +} + static int mpfs_musb_init(struct musb *musb) { struct device *dev = musb->controller; @@ -121,6 +220,8 @@ static int mpfs_musb_init(struct musb *musb) return PTR_ERR(musb->xceiv); } + timer_setup(&musb->dev_timer, otg_timer, 0); + musb->dyn_fifo = true; musb->isr = mpfs_musb_interrupt; @@ -129,14 +230,25 @@ static int mpfs_musb_init(struct musb *musb) return 0; } +static int mpfs_musb_exit(struct musb *musb) +{ + timer_delete_sync(&musb->dev_timer); + + return 0; +} + static const struct musb_platform_ops mpfs_ops = { .quirks = MUSB_DMA_INVENTRA, .init = mpfs_musb_init, + .exit = mpfs_musb_exit, .fifo_mode = 2, #ifdef CONFIG_USB_INVENTRA_DMA .dma_init = musbhs_dma_controller_create, .dma_exit = musbhs_dma_controller_destroy, #endif +#ifndef CONFIG_USB_MUSB_HOST + .try_idle = mpfs_musb_try_idle, +#endif .set_vbus = mpfs_musb_set_vbus }; @@ -190,6 +302,8 @@ static int mpfs_probe(struct platform_device *pdev) pdata->config = &mpfs_musb_hdrc_config; pdata->platform_ops = &mpfs_ops; + pdata->extvbus = device_property_read_bool(dev, "microchip,ext-vbus-drv"); + pdata->mode = usb_get_dr_mode(dev); if (pdata->mode == USB_DR_MODE_UNKNOWN) { dev_info(dev, "No dr_mode property found, defaulting to otg\n"); @@ -255,7 +369,7 @@ MODULE_DEVICE_TABLE(of, mpfs_id_table); static struct platform_driver mpfs_musb_driver = { .probe = mpfs_probe, - .remove_new = mpfs_remove, + .remove = mpfs_remove, .driver = { .name = "mpfs-musb", .of_match_table = of_match_ptr(mpfs_id_table) diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index b24adb5b399f..cbbb27178024 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -72,6 +72,7 @@ #include <linux/kobject.h> #include <linux/prefetch.h> #include <linux/platform_device.h> +#include <linux/string_choices.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/dma-mapping.h> @@ -920,7 +921,7 @@ b_host: musb_set_state(musb, OTG_STATE_B_HOST); if (musb->hcd) musb->hcd->self.is_b_host = 1; - del_timer(&musb->otg_timer); + timer_delete(&musb->otg_timer); break; default: if ((devctl & MUSB_DEVCTL_VBUS) @@ -1014,7 +1015,7 @@ static void musb_handle_intr_reset(struct musb *musb) + msecs_to_jiffies(TA_WAIT_BCON(musb))); break; case OTG_STATE_A_PERIPHERAL: - del_timer(&musb->otg_timer); + timer_delete(&musb->otg_timer); musb_g_reset(musb); break; case OTG_STATE_B_WAIT_ACON: @@ -1270,7 +1271,7 @@ MODULE_PARM_DESC(fifo_mode, "initial endpoint configuration"); */ /* mode 0 - fits in 2KB */ -static struct musb_fifo_cfg mode_0_cfg[] = { +static const struct musb_fifo_cfg mode_0_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_RXTX, .maxpacket = 512, }, @@ -1279,7 +1280,7 @@ static struct musb_fifo_cfg mode_0_cfg[] = { }; /* mode 1 - fits in 4KB */ -static struct musb_fifo_cfg mode_1_cfg[] = { +static const struct musb_fifo_cfg mode_1_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, .mode = BUF_DOUBLE, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, .mode = BUF_DOUBLE, }, { .hw_ep_num = 2, .style = FIFO_RXTX, .maxpacket = 512, .mode = BUF_DOUBLE, }, @@ -1288,7 +1289,7 @@ static struct musb_fifo_cfg mode_1_cfg[] = { }; /* mode 2 - fits in 4KB */ -static struct musb_fifo_cfg mode_2_cfg[] = { +static const struct musb_fifo_cfg mode_2_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -1298,7 +1299,7 @@ static struct musb_fifo_cfg mode_2_cfg[] = { }; /* mode 3 - fits in 4KB */ -static struct musb_fifo_cfg mode_3_cfg[] = { +static const struct musb_fifo_cfg mode_3_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, .mode = BUF_DOUBLE, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, .mode = BUF_DOUBLE, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -1308,7 +1309,7 @@ static struct musb_fifo_cfg mode_3_cfg[] = { }; /* mode 4 - fits in 16KB */ -static struct musb_fifo_cfg mode_4_cfg[] = { +static const struct musb_fifo_cfg mode_4_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -1339,7 +1340,7 @@ static struct musb_fifo_cfg mode_4_cfg[] = { }; /* mode 5 - fits in 8KB */ -static struct musb_fifo_cfg mode_5_cfg[] = { +static const struct musb_fifo_cfg mode_5_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, }, @@ -1387,7 +1388,7 @@ fifo_setup(struct musb *musb, struct musb_hw_ep *hw_ep, /* expect hw_ep has already been zero-initialized */ - size = ffs(max(maxpacket, (u16) 8)) - 1; + size = ffs(max_t(u16, maxpacket, 8)) - 1; maxpacket = 1 << size; c_size = size - 3; @@ -1446,7 +1447,7 @@ fifo_setup(struct musb *musb, struct musb_hw_ep *hw_ep, return offset + (maxpacket << ((c_size & MUSB_FIFOSZ_DPB) ? 1 : 0)); } -static struct musb_fifo_cfg ep0_cfg = { +static const struct musb_fifo_cfg ep0_cfg = { .style = FIFO_RXTX, .maxpacket = 64, }; @@ -1937,7 +1938,7 @@ vbus_show(struct device *dev, struct device_attribute *attr, char *buf) pm_runtime_put_sync(dev); return sprintf(buf, "Vbus %s, timeout %lu msec\n", - vbus ? "on" : "off", val); + str_on_off(vbus), val); } static DEVICE_ATTR_RW(vbus); @@ -2953,7 +2954,7 @@ static struct platform_driver musb_driver = { .dev_groups = musb_groups, }, .probe = musb_probe, - .remove_new = musb_remove, + .remove = musb_remove, }; module_platform_driver(musb_driver); diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index 9589243e8951..4cde3abb7006 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -760,8 +760,8 @@ cppi41_dma_controller_create(struct musb *musb, void __iomem *base) if (!controller) goto kzalloc_fail; - hrtimer_init(&controller->early_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - controller->early_tx.function = cppi41_recheck_tx_req; + hrtimer_setup(&controller->early_tx, cppi41_recheck_tx_req, CLOCK_MONOTONIC, + HRTIMER_MODE_REL); INIT_LIST_HEAD(&controller->early_tx_list); controller->controller.channel_alloc = cppi41_dma_channel_allocate; diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 9c7a8bbc0542..e5e813f97fac 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -24,6 +24,7 @@ #include <linux/usb/usb_phy_generic.h> #include <linux/platform_data/usb-omap.h> #include <linux/sizes.h> +#include <linux/string_choices.h> #include <linux/of.h> #include <linux/of_address.h> @@ -200,7 +201,7 @@ static void dsps_musb_disable(struct musb *musb) musb_writel(reg_base, wrp->coreintr_clear, wrp->usb_bitmap); musb_writel(reg_base, wrp->epintr_clear, wrp->txep_bitmap | wrp->rxep_bitmap); - del_timer_sync(&musb->dev_timer); + timer_delete_sync(&musb->dev_timer); } /* Caller must take musb->lock */ @@ -214,7 +215,7 @@ static int dsps_check_status(struct musb *musb, void *unused) int skip_session = 0; if (glue->vbus_irq) - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); /* * We poll because DSPS IP's won't expose several OTG-critical @@ -378,7 +379,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) /* NOTE: this must complete power-on within 100 ms. */ dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", - drvvbus ? "on" : "off", + str_on_off(drvvbus), usb_otg_state_string(musb->xceiv->otg->state), err ? " ERROR" : "", devctl); @@ -498,7 +499,7 @@ static int dsps_musb_exit(struct musb *musb) struct device *dev = musb->controller; struct dsps_glue *glue = dev_get_drvdata(dev->parent); - del_timer_sync(&musb->dev_timer); + timer_delete_sync(&musb->dev_timer); phy_power_off(musb->phy); phy_exit(musb->phy); debugfs_remove_recursive(glue->dbgfs_root); @@ -982,7 +983,7 @@ static int dsps_suspend(struct device *dev) return ret; } - del_timer_sync(&musb->dev_timer); + timer_delete_sync(&musb->dev_timer); mbase = musb->ctrl_base; glue->context.control = musb_readl(mbase, wrp->control); @@ -1032,7 +1033,7 @@ static SIMPLE_DEV_PM_OPS(dsps_pm_ops, dsps_suspend, dsps_resume); static struct platform_driver dsps_usbss_driver = { .probe = dsps_probe, - .remove_new = dsps_remove, + .remove = dsps_remove, .driver = { .name = "musb-dsps", .pm = &dsps_pm_ops, diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 55df0ee413d8..6869c58367f2 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -14,6 +14,7 @@ #include <linux/module.h> #include <linux/smp.h> #include <linux/spinlock.h> +#include <linux/string_choices.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/slab.h> @@ -1156,26 +1157,24 @@ void musb_free_request(struct usb_ep *ep, struct usb_request *req) kfree(request); } -static LIST_HEAD(buffers); - -struct free_record { - struct list_head list; - struct device *dev; - unsigned bytes; - dma_addr_t dma; -}; - /* * Context: controller locked, IRQs blocked. */ void musb_ep_restart(struct musb *musb, struct musb_request *req) { + u16 csr; + void __iomem *epio = req->ep->hw_ep->regs; + trace_musb_req_start(req); musb_ep_select(musb->mregs, req->epnum); - if (req->tx) + if (req->tx) { txstate(musb, req); - else - rxstate(musb, req); + } else { + csr = musb_readw(epio, MUSB_RXCSR); + csr |= MUSB_RXCSR_FLUSHFIFO | MUSB_RXCSR_P_WZC_BITS; + musb_writew(epio, MUSB_RXCSR, csr); + musb_writew(epio, MUSB_RXCSR, csr); + } } static int musb_ep_restart_resume_work(struct musb *musb, void *data) @@ -1608,7 +1607,7 @@ static void musb_pullup(struct musb *musb, int is_on) /* FIXME if on, HdrcStart; if off, HdrcStop */ musb_dbg(musb, "gadget D+ pullup %s", - is_on ? "on" : "off"); + str_on_off(is_on)); musb_writeb(musb->mregs, MUSB_POWER, power); } diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c index 6d7336727388..f0786f8fbb25 100644 --- a/drivers/usb/musb/musb_gadget_ep0.c +++ b/drivers/usb/musb/musb_gadget_ep0.c @@ -533,7 +533,7 @@ static void ep0_txstate(struct musb *musb) /* load the data */ fifo_src = (u8 *) request->buf + request->actual; - fifo_count = min((unsigned) MUSB_EP0_FIFOSIZE, + fifo_count = min_t(unsigned, MUSB_EP0_FIFOSIZE, request->length - request->actual); musb_write_fifo(&musb->endpoints[0], fifo_count, fifo_src); request->actual += fifo_count; diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index bc4507781167..6b4481a867c5 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -13,6 +13,7 @@ #include <linux/delay.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/errno.h> #include <linux/list.h> #include <linux/dma-mapping.h> @@ -798,10 +799,9 @@ static void musb_ep_program(struct musb *musb, u8 epnum, } if (can_bulk_split(musb, qh->type)) - load_count = min((u32) hw_ep->max_packet_sz_tx, - len); + load_count = min_t(u32, hw_ep->max_packet_sz_tx, len); else - load_count = min((u32) packet_sz, len); + load_count = min_t(u32, packet_sz, len); if (dma_channel && musb_tx_dma_program(dma_controller, hw_ep, qh, urb, offset, len)) @@ -1029,7 +1029,7 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb) + urb->actual_length); musb_dbg(musb, "Sending %d byte%s to ep0 fifo %p", fifo_count, - (fifo_count == 1) ? "" : "s", + str_plural(fifo_count), fifo_dest); musb_write_fifo(hw_ep, fifo_count, fifo_dest); diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h index f246b14394c4..726e6697d475 100644 --- a/drivers/usb/musb/musb_trace.h +++ b/drivers/usb/musb/musb_trace.h @@ -31,7 +31,7 @@ TRACE_EVENT(musb_log, __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( - __assign_str(name, dev_name(musb->controller)); + __assign_str(name); __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s: %s", __get_str(name), __get_str(msg)) @@ -46,9 +46,9 @@ TRACE_EVENT(musb_state, __string(desc, desc) ), TP_fast_assign( - __assign_str(name, dev_name(musb->controller)); + __assign_str(name); __entry->devctl = devctl; - __assign_str(desc, desc); + __assign_str(desc); ), TP_printk("%s: devctl: %02x %s", __get_str(name), __entry->devctl, __get_str(desc)) @@ -160,7 +160,7 @@ TRACE_EVENT(musb_isr, __field(u16, int_rx) ), TP_fast_assign( - __assign_str(name, dev_name(musb->controller)); + __assign_str(name); __entry->int_usb = musb->int_usb; __entry->int_tx = musb->int_tx; __entry->int_rx = musb->int_rx; @@ -184,7 +184,7 @@ DECLARE_EVENT_CLASS(musb_urb, __field(u32, actual_len) ), TP_fast_assign( - __assign_str(name, dev_name(musb->controller)); + __assign_str(name); __entry->urb = urb; __entry->pipe = urb->pipe; __entry->status = urb->status; @@ -325,7 +325,7 @@ DECLARE_EVENT_CLASS(musb_cppi41, ), TP_fast_assign( __entry->ch = ch; - __assign_str(name, dev_name(ch->hw_ep->musb->controller)); + __assign_str(name); __entry->hwep = ch->hw_ep->epnum; __entry->port = ch->port_num; __entry->is_tx = ch->is_tx; diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 2b2164e028b3..ce6f25a9650b 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -14,7 +14,7 @@ #include <linux/time.h> #include <linux/timer.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "musb_core.h" diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index b4a4c1df4e0d..2970967a4fd2 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -608,7 +608,7 @@ MODULE_DEVICE_TABLE(of, omap2430_id_table); static struct platform_driver omap2430_driver = { .probe = omap2430_probe, - .remove_new = omap2430_remove, + .remove = omap2430_remove, .driver = { .name = "musb-omap2430", .pm = DEV_PM_OPS, diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c index d54283fd026b..a6bd3e968cc7 100644 --- a/drivers/usb/musb/sunxi.c +++ b/drivers/usb/musb/sunxi.c @@ -293,8 +293,6 @@ static int sunxi_musb_exit(struct musb *musb) if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags)) sunxi_sram_release(musb->controller->parent); - devm_usb_put_phy(glue->dev, glue->xceiv); - return 0; } @@ -631,7 +629,7 @@ static const struct musb_platform_ops sunxi_musb_ops = { #define SUNXI_MUSB_RAM_BITS 11 /* Allwinner OTG supports up to 5 endpoints */ -static struct musb_fifo_cfg sunxi_musb_mode_cfg_5eps[] = { +static const struct musb_fifo_cfg sunxi_musb_mode_cfg_5eps[] = { MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512), MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512), MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512), @@ -645,7 +643,7 @@ static struct musb_fifo_cfg sunxi_musb_mode_cfg_5eps[] = { }; /* H3/V3s OTG supports only 4 endpoints */ -static struct musb_fifo_cfg sunxi_musb_mode_cfg_4eps[] = { +static const struct musb_fifo_cfg sunxi_musb_mode_cfg_4eps[] = { MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512), MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512), MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512), @@ -859,7 +857,7 @@ MODULE_DEVICE_TABLE(of, sunxi_musb_match); static struct platform_driver sunxi_musb_driver = { .probe = sunxi_musb_probe, - .remove_new = sunxi_musb_remove, + .remove = sunxi_musb_remove, .driver = { .name = "musb-sunxi", .of_match_table = sunxi_musb_match, diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 461587629bf2..abd2472da7f7 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -525,7 +525,7 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout) && (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) { dev_dbg(musb->controller, "%s active, deleting timer\n", usb_otg_state_string(musb->xceiv->otg->state)); - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); last_timer = jiffies; return; } @@ -875,7 +875,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci) } if (int_src & TUSB_INT_SRC_USB_IP_CONN) - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); /* OTG state change reports (annoyingly) not issued by Mentor core */ if (int_src & (TUSB_INT_SRC_VBUS_SENSE_CHNG @@ -984,7 +984,7 @@ static void tusb_musb_disable(struct musb *musb) musb_writel(tbase, TUSB_DMA_INT_MASK, 0x7fffffff); musb_writel(tbase, TUSB_GPIO_INT_MASK, 0x1ff); - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); if (is_dma_capable() && !dma_off) { printk(KERN_WARNING "%s %s: dma still active\n", @@ -1174,7 +1174,7 @@ static int tusb_musb_exit(struct musb *musb) { struct tusb6010_glue *glue = dev_get_drvdata(musb->controller->parent); - del_timer_sync(&musb->dev_timer); + timer_delete_sync(&musb->dev_timer); the_musb = NULL; gpiod_set_value(glue->enable, 0); @@ -1290,7 +1290,7 @@ static void tusb_remove(struct platform_device *pdev) static struct platform_driver tusb_driver = { .probe = tusb_probe, - .remove_new = tusb_remove, + .remove = tusb_remove, .driver = { .name = "musb-tusb", }, diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index c8d9d2a1d2f0..8c2a43d992f5 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -355,7 +355,7 @@ MODULE_DEVICE_TABLE(of, ux500_match); static struct platform_driver ux500_driver = { .probe = ux500_probe, - .remove_new = ux500_remove, + .remove = ux500_remove, .driver = { .name = "musb-ux500", .pm = &ux500_pm_ops, diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c index 408f47e39025..6a98aeeeae31 100644 --- a/drivers/usb/phy/phy-ab8500-usb.c +++ b/drivers/usb/phy/phy-ab8500-usb.c @@ -987,7 +987,7 @@ MODULE_DEVICE_TABLE(platform, ab8500_usb_devtype); static struct platform_driver ab8500_usb_driver = { .probe = ab8500_usb_probe, - .remove_new = ab8500_usb_remove, + .remove = ab8500_usb_remove, .id_table = ab8500_usb_devtype, .driver = { .name = "abx5x0-usb", diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c index 97e6603c7149..ada508be090a 100644 --- a/drivers/usb/phy/phy-am335x-control.c +++ b/drivers/usb/phy/phy-am335x-control.c @@ -189,4 +189,5 @@ static struct platform_driver am335x_control_driver = { }; module_platform_driver(am335x_control_driver); +MODULE_DESCRIPTION("AM335x USB PHY Control Driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c index e39665cf4b4a..ca9353dad71a 100644 --- a/drivers/usb/phy/phy-am335x.c +++ b/drivers/usb/phy/phy-am335x.c @@ -133,7 +133,7 @@ MODULE_DEVICE_TABLE(of, am335x_phy_ids); static struct platform_driver am335x_phy_driver = { .probe = am335x_phy_probe, - .remove_new = am335x_phy_remove, + .remove = am335x_phy_remove, .driver = { .name = "am335x-phy-driver", .pm = &am335x_pm_ops, @@ -142,4 +142,5 @@ static struct platform_driver am335x_phy_driver = { }; module_platform_driver(am335x_phy_driver); +MODULE_DESCRIPTION("AM335x USB PHY Driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index 79617bb0a70e..40ac68e52cee 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -12,6 +12,7 @@ #include <linux/kernel.h> #include <linux/delay.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/proc_fs.h> #include <linux/errno.h> #include <linux/interrupt.h> @@ -27,7 +28,7 @@ #include <linux/platform_device.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "phy-fsl-usb.h" @@ -529,7 +530,7 @@ int fsl_otg_start_gadget(struct otg_fsm *fsm, int on) if (!otg->gadget || !otg->gadget->dev.parent) return -ENODEV; - VDBG("gadget %s\n", on ? "on" : "off"); + VDBG("gadget %s\n", str_on_off(on)); dev = otg->gadget->dev.parent; if (on) { @@ -1002,10 +1003,9 @@ static void fsl_otg_remove(struct platform_device *pdev) struct platform_driver fsl_otg_driver = { .probe = fsl_otg_probe, - .remove_new = fsl_otg_remove, + .remove = fsl_otg_remove, .driver = { .name = driver_name, - .owner = THIS_MODULE, }, }; diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index fdcffebf415c..8423be59ec0f 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -71,6 +71,7 @@ static void nop_reset(struct usb_phy_generic *nop) gpiod_set_value_cansleep(nop->gpiod_reset, 1); usleep_range(10000, 20000); gpiod_set_value_cansleep(nop->gpiod_reset, 0); + usleep_range(10000, 30000); } /* interface to regulator framework */ @@ -211,7 +212,7 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop) if (of_property_read_u32(node, "clock-frequency", &clk_rate)) clk_rate = 0; - needs_clk = of_property_read_bool(node, "clocks"); + needs_clk = of_property_present(node, "clocks"); } nop->gpiod_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS); @@ -344,7 +345,7 @@ MODULE_DEVICE_TABLE(of, nop_xceiv_dt_ids); static struct platform_driver usb_phy_generic_driver = { .probe = usb_phy_generic_probe, - .remove_new = usb_phy_generic_remove, + .remove = usb_phy_generic_remove, .driver = { .name = "usb_phy_generic", .of_match_table = nop_xceiv_dt_ids, diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c index 817c242a76ca..ce09e789afd8 100644 --- a/drivers/usb/phy/phy-gpio-vbus-usb.c +++ b/drivers/usb/phy/phy-gpio-vbus-usb.c @@ -374,6 +374,7 @@ static const struct of_device_id gpio_vbus_of_match[] = { }, {}, }; +MODULE_DEVICE_TABLE(of, gpio_vbus_of_match); static struct platform_driver gpio_vbus_driver = { .driver = { @@ -384,7 +385,7 @@ static struct platform_driver gpio_vbus_driver = { .of_match_table = gpio_vbus_of_match, }, .probe = gpio_vbus_probe, - .remove_new = gpio_vbus_remove, + .remove = gpio_vbus_remove, }; module_platform_driver(gpio_vbus_driver); diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c index 993d7525a102..f9b5c411aee4 100644 --- a/drivers/usb/phy/phy-isp1301.c +++ b/drivers/usb/phy/phy-isp1301.c @@ -25,7 +25,7 @@ struct isp1301 { #define phy_to_isp(p) (container_of((p), struct isp1301, phy)) static const struct i2c_device_id isp1301_id[] = { - { "isp1301", 0 }, + { "isp1301" }, { } }; MODULE_DEVICE_TABLE(i2c, isp1301_id); diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c index bd9a98ad1b30..51155c5513d3 100644 --- a/drivers/usb/phy/phy-keystone.c +++ b/drivers/usb/phy/phy-keystone.c @@ -103,7 +103,7 @@ MODULE_DEVICE_TABLE(of, keystone_usbphy_ids); static struct platform_driver keystone_usbphy_driver = { .probe = keystone_usbphy_probe, - .remove_new = keystone_usbphy_remove, + .remove = keystone_usbphy_remove, .driver = { .name = "keystone-usbphy", .of_match_table = keystone_usbphy_ids, diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c index df7c27474a75..638fba58420c 100644 --- a/drivers/usb/phy/phy-mv-usb.c +++ b/drivers/usb/phy/phy-mv-usb.c @@ -15,6 +15,7 @@ #include <linux/clk.h> #include <linux/workqueue.h> #include <linux/platform_device.h> +#include <linux/string_choices.h> #include <linux/usb.h> #include <linux/usb/ch9.h> @@ -109,7 +110,7 @@ static int mv_otg_cancel_timer(struct mv_otg *mvotg, unsigned int id) timer = &mvotg->otg_ctrl.timer[id]; if (timer_pending(timer)) - del_timer(timer); + timer_delete(timer); return 0; } @@ -217,7 +218,7 @@ static void mv_otg_start_periphrals(struct mv_otg *mvotg, int on) if (!otg->gadget) return; - dev_info(mvotg->phy.dev, "gadget %s\n", on ? "on" : "off"); + dev_info(mvotg->phy.dev, "gadget %s\n", str_on_off(on)); if (on) usb_gadget_vbus_connect(otg->gadget); @@ -867,7 +868,7 @@ static int mv_otg_resume(struct platform_device *pdev) static struct platform_driver mv_otg_driver = { .probe = mv_otg_probe, - .remove_new = mv_otg_remove, + .remove = mv_otg_remove, .driver = { .name = driver_name, .dev_groups = mv_otg_groups, diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index 920a32cd094d..7069dd3f4d0d 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -18,6 +18,7 @@ #include <linux/regmap.h> #include <linux/mfd/syscon.h> #include <linux/iopoll.h> +#include <linux/regulator/consumer.h> #define DRIVER_NAME "mxs_phy" @@ -70,6 +71,9 @@ #define BM_USBPHY_PLL_EN_USB_CLKS BIT(6) /* Anatop Registers */ +#define ANADIG_REG_1P1_SET 0x114 +#define ANADIG_REG_1P1_CLR 0x118 + #define ANADIG_ANA_MISC0 0x150 #define ANADIG_ANA_MISC0_SET 0x154 #define ANADIG_ANA_MISC0_CLR 0x158 @@ -117,6 +121,14 @@ #define BM_ANADIG_USB2_MISC_RX_VPIN_FS BIT(29) #define BM_ANADIG_USB2_MISC_RX_VMIN_FS BIT(28) +/* System Integration Module (SIM) Registers */ +#define SIM_GPR1 0x30 + +#define USB_PHY_VLLS_WAKEUP_EN BIT(0) + +#define BM_ANADIG_REG_1P1_ENABLE_WEAK_LINREG BIT(18) +#define BM_ANADIG_REG_1P1_TRACK_VDD_SOC_CAP BIT(19) + #define to_mxs_phy(p) container_of((p), struct mxs_phy, phy) /* Do disconnection between PHY and controller without vbus */ @@ -149,6 +161,15 @@ #define MXS_PHY_TX_D_CAL_MIN 79 #define MXS_PHY_TX_D_CAL_MAX 119 +/* + * At imx6q/6sl/6sx, the PHY2's clock is controlled by hardware directly, + * eg, according to PHY's suspend status. In these PHYs, we only need to + * open the clock at the initialization and close it at its shutdown routine. + * These PHYs can send resume signal without software interfere if not + * gate clock. + */ +#define MXS_PHY_HARDWARE_CONTROL_PHY2_CLK BIT(4) + struct mxs_phy_data { unsigned int flags; }; @@ -160,12 +181,14 @@ static const struct mxs_phy_data imx23_phy_data = { static const struct mxs_phy_data imx6q_phy_data = { .flags = MXS_PHY_SENDING_SOF_TOO_FAST | MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS | - MXS_PHY_NEED_IP_FIX, + MXS_PHY_NEED_IP_FIX | + MXS_PHY_HARDWARE_CONTROL_PHY2_CLK, }; static const struct mxs_phy_data imx6sl_phy_data = { .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS | - MXS_PHY_NEED_IP_FIX, + MXS_PHY_NEED_IP_FIX | + MXS_PHY_HARDWARE_CONTROL_PHY2_CLK, }; static const struct mxs_phy_data vf610_phy_data = { @@ -174,11 +197,13 @@ static const struct mxs_phy_data vf610_phy_data = { }; static const struct mxs_phy_data imx6sx_phy_data = { - .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS, + .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS | + MXS_PHY_HARDWARE_CONTROL_PHY2_CLK, }; static const struct mxs_phy_data imx6ul_phy_data = { - .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS, + .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS | + MXS_PHY_HARDWARE_CONTROL_PHY2_CLK, }; static const struct mxs_phy_data imx7ulp_phy_data = { @@ -201,9 +226,11 @@ struct mxs_phy { struct clk *clk; const struct mxs_phy_data *data; struct regmap *regmap_anatop; + struct regmap *regmap_sim; int port_id; u32 tx_reg_set; u32 tx_reg_mask; + struct regulator *phy_3p0; }; static inline bool is_imx6q_phy(struct mxs_phy *mxs_phy) @@ -221,6 +248,11 @@ static inline bool is_imx7ulp_phy(struct mxs_phy *mxs_phy) return mxs_phy->data == &imx7ulp_phy_data; } +static inline bool is_imx6ul_phy(struct mxs_phy *mxs_phy) +{ + return mxs_phy->data == &imx6ul_phy_data; +} + /* * PHY needs some 32K cycles to switch from 32K clock to * bus (such as AHB/AXI, etc) clock. @@ -288,6 +320,16 @@ static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) if (ret) goto disable_pll; + if (mxs_phy->phy_3p0) { + ret = regulator_enable(mxs_phy->phy_3p0); + if (ret) { + dev_err(mxs_phy->phy.dev, + "Failed to enable 3p0 regulator, ret=%d\n", + ret); + return ret; + } + } + /* Power up the PHY */ writel(0, base + HW_USBPHY_PWD); @@ -448,6 +490,9 @@ static void mxs_phy_shutdown(struct usb_phy *phy) if (is_imx7ulp_phy(mxs_phy)) mxs_phy_pll_enable(phy->io_priv, false); + if (mxs_phy->phy_3p0) + regulator_disable(mxs_phy->phy_3p0); + clk_disable_unprepare(mxs_phy->clk); } @@ -503,12 +548,19 @@ static int mxs_phy_suspend(struct usb_phy *x, int suspend) } writel(BM_USBPHY_CTRL_CLKGATE, x->io_priv + HW_USBPHY_CTRL_SET); - clk_disable_unprepare(mxs_phy->clk); + if (!(mxs_phy->port_id == 1 && + (mxs_phy->data->flags & + MXS_PHY_HARDWARE_CONTROL_PHY2_CLK))) + clk_disable_unprepare(mxs_phy->clk); } else { mxs_phy_clock_switch_delay(); - ret = clk_prepare_enable(mxs_phy->clk); - if (ret) - return ret; + if (!(mxs_phy->port_id == 1 && + (mxs_phy->data->flags & + MXS_PHY_HARDWARE_CONTROL_PHY2_CLK))) { + ret = clk_prepare_enable(mxs_phy->clk); + if (ret) + return ret; + } writel(BM_USBPHY_CTRL_CLKGATE, x->io_priv + HW_USBPHY_CTRL_CLR); writel(0, x->io_priv + HW_USBPHY_PWD); @@ -717,11 +769,9 @@ static int mxs_phy_probe(struct platform_device *pdev) return PTR_ERR(base); clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(clk)) { - dev_err(&pdev->dev, - "can't get the clock, err=%ld", PTR_ERR(clk)); - return PTR_ERR(clk); - } + if (IS_ERR(clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(clk), + "can't get the clock\n"); mxs_phy = devm_kzalloc(&pdev->dev, sizeof(*mxs_phy), GFP_KERNEL); if (!mxs_phy) @@ -738,6 +788,17 @@ static int mxs_phy_probe(struct platform_device *pdev) } } + /* Currently, only imx7ulp has SIM module */ + if (of_get_property(np, "nxp,sim", NULL)) { + mxs_phy->regmap_sim = syscon_regmap_lookup_by_phandle + (np, "nxp,sim"); + if (IS_ERR(mxs_phy->regmap_sim)) { + dev_dbg(&pdev->dev, + "failed to find regmap for sim\n"); + return PTR_ERR(mxs_phy->regmap_sim); + } + } + /* Precompute which bits of the TX register are to be updated, if any */ if (!of_property_read_u32(np, "fsl,tx-cal-45-dn-ohms", &val) && val >= MXS_PHY_TX_CAL45_MIN && val <= MXS_PHY_TX_CAL45_MAX) { @@ -789,6 +850,17 @@ static int mxs_phy_probe(struct platform_device *pdev) mxs_phy->clk = clk; mxs_phy->data = of_device_get_match_data(&pdev->dev); + mxs_phy->phy_3p0 = devm_regulator_get(&pdev->dev, "phy-3p0"); + if (PTR_ERR(mxs_phy->phy_3p0) == -ENODEV) + /* not exist */ + mxs_phy->phy_3p0 = NULL; + else if (IS_ERR(mxs_phy->phy_3p0)) + return dev_err_probe(&pdev->dev, PTR_ERR(mxs_phy->phy_3p0), + "Getting regulator error\n"); + + if (mxs_phy->phy_3p0) + regulator_set_voltage(mxs_phy->phy_3p0, 3200000, 3200000); + platform_set_drvdata(pdev, mxs_phy); device_set_wakeup_capable(&pdev->dev, true); @@ -804,28 +876,58 @@ static void mxs_phy_remove(struct platform_device *pdev) } #ifdef CONFIG_PM_SLEEP +static void mxs_phy_wakeup_enable(struct mxs_phy *mxs_phy, bool on) +{ + u32 mask = USB_PHY_VLLS_WAKEUP_EN; + + /* If the SoCs don't have SIM, quit */ + if (!mxs_phy->regmap_sim) + return; + + if (on) { + regmap_update_bits(mxs_phy->regmap_sim, SIM_GPR1, mask, mask); + udelay(500); + } else { + regmap_update_bits(mxs_phy->regmap_sim, SIM_GPR1, mask, 0); + } +} + static void mxs_phy_enable_ldo_in_suspend(struct mxs_phy *mxs_phy, bool on) { - unsigned int reg = on ? ANADIG_ANA_MISC0_SET : ANADIG_ANA_MISC0_CLR; + unsigned int reg; + u32 value; /* If the SoCs don't have anatop, quit */ if (!mxs_phy->regmap_anatop) return; - if (is_imx6q_phy(mxs_phy)) + if (is_imx6q_phy(mxs_phy)) { + reg = on ? ANADIG_ANA_MISC0_SET : ANADIG_ANA_MISC0_CLR; regmap_write(mxs_phy->regmap_anatop, reg, BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG); - else if (is_imx6sl_phy(mxs_phy)) + } else if (is_imx6sl_phy(mxs_phy)) { + reg = on ? ANADIG_ANA_MISC0_SET : ANADIG_ANA_MISC0_CLR; regmap_write(mxs_phy->regmap_anatop, reg, BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG_SL); + } else if (is_imx6ul_phy(mxs_phy)) { + reg = on ? ANADIG_REG_1P1_SET : ANADIG_REG_1P1_CLR; + value = BM_ANADIG_REG_1P1_ENABLE_WEAK_LINREG | + BM_ANADIG_REG_1P1_TRACK_VDD_SOC_CAP; + if (mxs_phy_get_vbus_status(mxs_phy) && on) + regmap_write(mxs_phy->regmap_anatop, reg, value); + else if (!on) + regmap_write(mxs_phy->regmap_anatop, reg, value); + } } static int mxs_phy_system_suspend(struct device *dev) { struct mxs_phy *mxs_phy = dev_get_drvdata(dev); - if (device_may_wakeup(dev)) + if (device_may_wakeup(dev)) { mxs_phy_enable_ldo_in_suspend(mxs_phy, true); + mxs_phy_wakeup_enable(mxs_phy, true); + } return 0; } @@ -834,8 +936,10 @@ static int mxs_phy_system_resume(struct device *dev) { struct mxs_phy *mxs_phy = dev_get_drvdata(dev); - if (device_may_wakeup(dev)) + if (device_may_wakeup(dev)) { mxs_phy_enable_ldo_in_suspend(mxs_phy, false); + mxs_phy_wakeup_enable(mxs_phy, false); + } return 0; } @@ -846,7 +950,7 @@ static SIMPLE_DEV_PM_OPS(mxs_phy_pm, mxs_phy_system_suspend, static struct platform_driver mxs_phy_driver = { .probe = mxs_phy_probe, - .remove_new = mxs_phy_remove, + .remove = mxs_phy_remove, .driver = { .name = DRIVER_NAME, .of_match_table = mxs_phy_dt_ids, diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c index 5cac31c6029b..88607d0edb01 100644 --- a/drivers/usb/phy/phy-tahvo.c +++ b/drivers/usb/phy/phy-tahvo.c @@ -18,6 +18,7 @@ #include <linux/extcon-provider.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/string_choices.h> #include <linux/usb/otg.h> #include <linux/mfd/retu.h> #include <linux/usb/gadget.h> @@ -63,7 +64,7 @@ static ssize_t vbus_show(struct device *device, struct device_attribute *attr, char *buf) { struct tahvo_usb *tu = dev_get_drvdata(device); - return sprintf(buf, "%s\n", tu->vbus_state ? "on" : "off"); + return sprintf(buf, "%s\n", str_on_off(tu->vbus_state)); } static DEVICE_ATTR_RO(vbus); @@ -424,7 +425,7 @@ static void tahvo_usb_remove(struct platform_device *pdev) static struct platform_driver tahvo_usb_driver = { .probe = tahvo_usb_probe, - .remove_new = tahvo_usb_remove, + .remove = tahvo_usb_remove, .driver = { .name = "tahvo-usb", .dev_groups = tahvo_groups, diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c index 4ea47e6f835b..bee222967f6b 100644 --- a/drivers/usb/phy/phy-tegra-usb.c +++ b/drivers/usb/phy/phy-tegra-usb.c @@ -1495,7 +1495,7 @@ static void tegra_usb_phy_remove(struct platform_device *pdev) static struct platform_driver tegra_usb_phy_driver = { .probe = tegra_usb_phy_probe, - .remove_new = tegra_usb_phy_remove, + .remove = tegra_usb_phy_remove, .driver = { .name = "tegra-phy", .of_match_table = tegra_usb_phy_id_table, diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index da09cff55abc..49d79c1257f3 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -432,7 +432,7 @@ MODULE_DEVICE_TABLE(of, twl6030_usb_id_table); static struct platform_driver twl6030_usb_driver = { .probe = twl6030_usb_probe, - .remove_new = twl6030_usb_remove, + .remove = twl6030_usb_remove, .driver = { .name = "twl6030_usb", .of_match_table = of_match_ptr(twl6030_usb_id_table), diff --git a/drivers/usb/phy/phy-ulpi.c b/drivers/usb/phy/phy-ulpi.c index e683a37e3a7a..4df63e67bb37 100644 --- a/drivers/usb/phy/phy-ulpi.c +++ b/drivers/usb/phy/phy-ulpi.c @@ -256,29 +256,6 @@ static void otg_ulpi_init(struct usb_phy *phy, struct usb_otg *otg, } struct usb_phy * -otg_ulpi_create(struct usb_phy_io_ops *ops, - unsigned int flags) -{ - struct usb_phy *phy; - struct usb_otg *otg; - - phy = kzalloc(sizeof(*phy), GFP_KERNEL); - if (!phy) - return NULL; - - otg = kzalloc(sizeof(*otg), GFP_KERNEL); - if (!otg) { - kfree(phy); - return NULL; - } - - otg_ulpi_init(phy, otg, ops, flags); - - return phy; -} -EXPORT_SYMBOL_GPL(otg_ulpi_create); - -struct usb_phy * devm_otg_ulpi_create(struct device *dev, struct usb_phy_io_ops *ops, unsigned int flags) diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c index 06e0fb23566c..e1435bc59662 100644 --- a/drivers/usb/phy/phy.c +++ b/drivers/usb/phy/phy.c @@ -346,13 +346,6 @@ static void devm_usb_phy_release2(struct device *dev, void *_res) usb_put_phy(res->phy); } -static int devm_usb_phy_match(struct device *dev, void *res, void *match_data) -{ - struct usb_phy **phy = res; - - return *phy == match_data; -} - static void usb_charger_init(struct usb_phy *usb_phy) { usb_phy->chg_type = UNKNOWN_TYPE; @@ -365,7 +358,7 @@ static int usb_add_extcon(struct usb_phy *x) { int ret; - if (of_property_read_bool(x->dev->of_node, "extcon")) { + if (of_property_present(x->dev->of_node, "extcon")) { x->edev = extcon_get_edev_by_phandle(x->dev, 0); if (IS_ERR(x->edev)) return PTR_ERR(x->edev); @@ -615,25 +608,6 @@ struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev, EXPORT_SYMBOL_GPL(devm_usb_get_phy_by_phandle); /** - * devm_usb_put_phy - release the USB PHY - * @dev: device that wants to release this phy - * @phy: the phy returned by devm_usb_get_phy() - * - * destroys the devres associated with this phy and invokes usb_put_phy - * to release the phy. - * - * For use by USB host and peripheral drivers. - */ -void devm_usb_put_phy(struct device *dev, struct usb_phy *phy) -{ - int r; - - r = devres_destroy(dev, devm_usb_phy_release, devm_usb_phy_match, phy); - dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n"); -} -EXPORT_SYMBOL_GPL(devm_usb_put_phy); - -/** * usb_put_phy - release the USB PHY * @x: the phy returned by usb_get_phy() * diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index dd1c17542439..4b35ef216125 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -312,8 +312,10 @@ static int usbhsc_clk_get(struct device *dev, struct usbhs_priv *priv) priv->clks[1] = of_clk_get(dev_of_node(dev), 1); if (PTR_ERR(priv->clks[1]) == -ENOENT) priv->clks[1] = NULL; - else if (IS_ERR(priv->clks[1])) + else if (IS_ERR(priv->clks[1])) { + clk_put(priv->clks[0]); return PTR_ERR(priv->clks[1]); + } return 0; } @@ -363,14 +365,14 @@ static void usbhsc_clk_disable_unprepare(struct usbhs_priv *priv) * platform default param */ -/* commonly used on old SH-Mobile SoCs */ +/* commonly used on old SH-Mobile and RZ/G2L family SoCs */ static struct renesas_usbhs_driver_pipe_config usbhsc_default_pipe[] = { RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_CONTROL, 64, 0x00, false), - RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x08, false), - RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x18, false), - RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x28, true), - RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x38, true), + RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x08, true), + RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x28, true), RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x48, true), + RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x58, true), + RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x68, true), RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x04, false), RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x05, false), RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x06, false), @@ -566,6 +568,18 @@ static const struct of_device_id usbhs_of_match[] = { .data = &usbhs_rcar_gen3_with_pll_plat_info, }, { + .compatible = "renesas,usbhs-r9a07g043", + .data = &usbhs_rzg2l_plat_info, + }, + { + .compatible = "renesas,usbhs-r9a07g044", + .data = &usbhs_rzg2l_plat_info, + }, + { + .compatible = "renesas,usbhs-r9a07g054", + .data = &usbhs_rzg2l_plat_info, + }, + { .compatible = "renesas,rcar-gen2-usbhs", .data = &usbhs_rcar_gen2_plat_info, }, @@ -581,7 +595,11 @@ static const struct of_device_id usbhs_of_match[] = { .compatible = "renesas,rza2-usbhs", .data = &usbhs_rza2_plat_info, }, - { }, + { + .compatible = "renesas,rzg2l-usbhs", + .data = &usbhs_rzg2l_plat_info, + }, + { } }; MODULE_DEVICE_TABLE(of, usbhs_of_match); @@ -595,16 +613,11 @@ static int usbhs_probe(struct platform_device *pdev) u32 tmp; int irq; - /* check device node */ - if (dev_of_node(dev)) - info = of_device_get_match_data(dev); - else - info = renesas_usbhs_get_info(pdev); - - /* check platform information */ + info = of_device_get_match_data(dev); if (!info) { - dev_err(dev, "no platform information\n"); - return -EINVAL; + info = dev_get_platdata(dev); + if (!info) + return dev_err_probe(dev, -EINVAL, "no platform info\n"); } /* platform data */ @@ -621,7 +634,7 @@ static int usbhs_probe(struct platform_device *pdev) if (IS_ERR(priv->base)) return PTR_ERR(priv->base); - if (of_property_read_bool(dev_of_node(dev), "extcon")) { + if (of_property_present(dev_of_node(dev), "extcon")) { priv->edev = extcon_get_edev_by_phandle(dev, 0); if (IS_ERR(priv->edev)) return PTR_ERR(priv->edev); @@ -768,6 +781,8 @@ static void usbhs_remove(struct platform_device *pdev) dev_dbg(&pdev->dev, "usb remove\n"); + flush_delayed_work(&priv->notify_hotplug_work); + /* power off */ if (!usbhs_get_dparam(priv, runtime_pwctrl)) usbhsc_power_ctrl(priv, 0); @@ -824,7 +839,7 @@ static struct platform_driver renesas_usbhs_driver = { .of_match_table = usbhs_of_match, }, .probe = usbhs_probe, - .remove_new = usbhs_remove, + .remove = usbhs_remove, }; module_platform_driver(renesas_usbhs_driver); diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 105132ae87ac..e8e5723f5412 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -1094,7 +1094,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) goto usbhs_mod_gadget_probe_err_gpriv; } - gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED); + gpriv->transceiver = devm_usb_get_phy(dev, USB_PHY_TYPE_UNDEFINED); dev_info(dev, "%stransceiver found\n", !IS_ERR(gpriv->transceiver) ? "" : "no "); diff --git a/drivers/usb/renesas_usbhs/rza.h b/drivers/usb/renesas_usbhs/rza.h index a29b75fef057..8b879aa34a20 100644 --- a/drivers/usb/renesas_usbhs/rza.h +++ b/drivers/usb/renesas_usbhs/rza.h @@ -3,3 +3,4 @@ extern const struct renesas_usbhs_platform_info usbhs_rza1_plat_info; extern const struct renesas_usbhs_platform_info usbhs_rza2_plat_info; +extern const struct renesas_usbhs_platform_info usbhs_rzg2l_plat_info; diff --git a/drivers/usb/renesas_usbhs/rza2.c b/drivers/usb/renesas_usbhs/rza2.c index f079817250bb..b83699eab373 100644 --- a/drivers/usb/renesas_usbhs/rza2.c +++ b/drivers/usb/renesas_usbhs/rza2.c @@ -71,3 +71,16 @@ const struct renesas_usbhs_platform_info usbhs_rza2_plat_info = { .has_new_pipe_configs = 1, }, }; + +const struct renesas_usbhs_platform_info usbhs_rzg2l_plat_info = { + .platform_callback = { + .hardware_init = usbhs_rza2_hardware_init, + .hardware_exit = usbhs_rza2_hardware_exit, + .power_ctrl = usbhs_rza2_power_ctrl, + .get_id = usbhs_get_id_as_gadget, + }, + .driver_param = { + .has_cnen = 1, + .cfifo_byte_addr = 1, + }, +}; diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c index d7aa913ceb8a..30482d4cf826 100644 --- a/drivers/usb/roles/class.c +++ b/drivers/usb/roles/class.c @@ -11,6 +11,7 @@ #include <linux/usb/role.h> #include <linux/property.h> #include <linux/device.h> +#include <linux/lockdep.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> @@ -21,6 +22,7 @@ static const struct class role_class = { struct usb_role_switch { struct device dev; + struct lock_class_key key; struct mutex lock; /* device lock*/ struct module *module; /* the module this device depends on */ enum usb_role role; @@ -326,6 +328,8 @@ static void usb_role_switch_release(struct device *dev) { struct usb_role_switch *sw = to_role_switch(dev); + mutex_destroy(&sw->lock); + lockdep_unregister_key(&sw->key); kfree(sw); } @@ -364,7 +368,8 @@ usb_role_switch_register(struct device *parent, if (!sw) return ERR_PTR(-ENOMEM); - mutex_init(&sw->lock); + lockdep_register_key(&sw->key); + mutex_init_with_key(&sw->lock, &sw->key); sw->allow_userspace_control = desc->allow_userspace_control; sw->usb2_port = desc->usb2_port; @@ -382,8 +387,11 @@ usb_role_switch_register(struct device *parent, dev_set_name(&sw->dev, "%s-role-switch", desc->name ? desc->name : dev_name(parent)); + sw->registered = true; + ret = device_register(&sw->dev); if (ret) { + sw->registered = false; put_device(&sw->dev); return ERR_PTR(ret); } @@ -394,8 +402,6 @@ usb_role_switch_register(struct device *parent, dev_warn(&sw->dev, "failed to add component\n"); } - sw->registered = true; - /* TODO: Symlinks for the host port and the device controller. */ return sw; diff --git a/drivers/usb/roles/intel-xhci-usb-role-switch.c b/drivers/usb/roles/intel-xhci-usb-role-switch.c index e5c6c413a075..cd2e026dcb22 100644 --- a/drivers/usb/roles/intel-xhci-usb-role-switch.c +++ b/drivers/usb/roles/intel-xhci-usb-role-switch.c @@ -217,7 +217,7 @@ static struct platform_driver intel_xhci_usb_driver = { }, .id_table = intel_xhci_usb_table, .probe = intel_xhci_usb_probe, - .remove_new = intel_xhci_usb_remove, + .remove = intel_xhci_usb_remove, }; module_platform_driver(intel_xhci_usb_driver); diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index a1df686c3066..2a76f1f0ee4f 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -35,7 +35,7 @@ * */ -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/tty.h> #include <linux/slab.h> #include <linux/module.h> @@ -138,7 +138,6 @@ static void aircable_process_read_urb(struct urb *urb) static struct usb_serial_driver aircable_device = { .driver = { - .owner = THIS_MODULE, .name = "aircable", }, .id_table = id_table, diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 67a07cc007f0..800b04fe37fa 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -599,7 +599,6 @@ static void ark3116_process_read_urb(struct urb *urb) static struct usb_serial_driver ark3116_device = { .driver = { - .owner = THIS_MODULE, .name = "ark3116", }, .id_table = id_table, diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index cf47ee4ae5d3..44f5b58beec9 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -66,7 +66,6 @@ MODULE_DEVICE_TABLE(usb, id_table); /* All of the device info needed for the serial converters */ static struct usb_serial_driver belkin_device = { .driver = { - .owner = THIS_MODULE, .name = "belkin", }, .description = "Belkin / Peracom / GoHubs USB Serial Adapter", diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index 6c812d01b37d..2fea1b1db4a2 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -14,7 +14,7 @@ #include <linux/usb/serial.h> static int usb_serial_device_match(struct device *dev, - struct device_driver *drv) + const struct device_driver *drv) { const struct usb_serial_port *port = to_usb_serial_port(dev); struct usb_serial_driver *driver = to_usb_serial_driver(drv); @@ -136,12 +136,11 @@ static void free_dynids(struct usb_serial_driver *drv) { struct usb_dynid *dynid, *n; - spin_lock(&drv->dynids.lock); + guard(mutex)(&usb_dynids_lock); list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { list_del(&dynid->node); kfree(dynid); } - spin_unlock(&drv->dynids.lock); } const struct bus_type usb_serial_bus_type = { @@ -157,7 +156,6 @@ int usb_serial_bus_register(struct usb_serial_driver *driver) int retval; driver->driver.bus = &usb_serial_bus_type; - spin_lock_init(&driver->dynids.lock); INIT_LIST_HEAD(&driver->dynids.list); retval = driver_register(&driver->driver); diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 612bea504d7a..7cc36f84821f 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -19,7 +19,7 @@ #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/serial.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define DEFAULT_BAUD_RATE 9600 #define DEFAULT_TIMEOUT 1000 @@ -63,6 +63,7 @@ #define CH341_REG_DIVISOR 0x13 #define CH341_REG_LCR 0x18 #define CH341_REG_LCR2 0x25 +#define CH341_REG_FLOW_CTL 0x27 #define CH341_NBREAK_BITS 0x01 @@ -77,6 +78,9 @@ #define CH341_LCR_CS6 0x01 #define CH341_LCR_CS5 0x00 +#define CH341_FLOW_CTL_NONE 0x00 +#define CH341_FLOW_CTL_RTSCTS 0x01 + #define CH341_QUIRK_LIMITED_PRESCALER BIT(0) #define CH341_QUIRK_SIMULATE_BREAK BIT(1) @@ -478,6 +482,28 @@ err_kill_interrupt_urb: return r; } +static void ch341_set_flow_control(struct tty_struct *tty, + struct usb_serial_port *port, + const struct ktermios *old_termios) +{ + u16 flow_ctl; + int r; + + if (C_CRTSCTS(tty)) + flow_ctl = CH341_FLOW_CTL_RTSCTS; + else + flow_ctl = CH341_FLOW_CTL_NONE; + + r = ch341_control_out(port->serial->dev, + CH341_REQ_WRITE_REG, + (CH341_REG_FLOW_CTL << 8) | CH341_REG_FLOW_CTL, + (flow_ctl << 8) | flow_ctl); + if (r < 0 && old_termios) { + tty->termios.c_cflag &= ~CRTSCTS; + tty->termios.c_cflag |= (old_termios->c_cflag & CRTSCTS); + } +} + /* Old_termios contains the original termios settings and * tty->termios contains the new setting to be used. */ @@ -546,6 +572,8 @@ static void ch341_set_termios(struct tty_struct *tty, spin_unlock_irqrestore(&priv->lock, flags); ch341_set_handshake(port->serial->dev, priv->mcr); + + ch341_set_flow_control(tty, port, old_termios); } /* @@ -632,13 +660,12 @@ restore: static int ch341_break_ctl(struct tty_struct *tty, int break_state) { - const uint16_t ch341_break_reg = - ((uint16_t) CH341_REG_LCR << 8) | CH341_REG_BREAK; + const u16 ch341_break_reg = (CH341_REG_LCR << 8) | CH341_REG_BREAK; struct usb_serial_port *port = tty->driver_data; struct ch341_private *priv = usb_get_serial_port_data(port); + u16 reg_contents; + u8 break_reg[2]; int r; - uint16_t reg_contents; - uint8_t break_reg[2]; if (priv->quirks & CH341_QUIRK_SIMULATE_BREAK) return ch341_simulate_break(tty, break_state); @@ -837,7 +864,6 @@ static int ch341_reset_resume(struct usb_serial *serial) static struct usb_serial_driver ch341_device = { .driver = { - .owner = THIS_MODULE, .name = "ch341-uart", }, .id_table = id_table, @@ -863,4 +889,5 @@ static struct usb_serial_driver * const serial_drivers[] = { module_usb_serial_driver(serial_drivers, id_table); +MODULE_DESCRIPTION("Winchiphead CH341 USB Serial driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 21fd26609252..9960ac2b10b7 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -223,6 +223,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */ { USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */ { USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */ + { USB_DEVICE(0x1B93, 0x1013) }, /* Phoenix Contact UPS Device */ { USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */ { USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */ { USB_DEVICE(0x1D6F, 0x0010) }, /* Seluxit ApS RF Dongle */ @@ -299,7 +300,6 @@ struct cp210x_port_private { static struct usb_serial_driver cp210x_device = { .driver = { - .owner = THIS_MODULE, .name = "cp210x", }, .id_table = id_table, diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 51e5aac3bf4c..76dd8e7453b5 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -67,7 +67,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver cyberjack_device = { .driver = { - .owner = THIS_MODULE, .name = "cyberjack", }, .description = "Reiner SCT Cyberjack USB card reader", diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 1e0c028c5ec9..e29569d65991 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -36,7 +36,7 @@ #include <linux/kfifo.h> #include <linux/delay.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "cypress_m8.h" @@ -139,7 +139,6 @@ static void cypress_write_int_callback(struct urb *urb); static struct usb_serial_driver cypress_earthmate_device = { .driver = { - .owner = THIS_MODULE, .name = "earthmate", }, .description = "DeLorme Earthmate USB", @@ -166,7 +165,6 @@ static struct usb_serial_driver cypress_earthmate_device = { static struct usb_serial_driver cypress_hidcom_device = { .driver = { - .owner = THIS_MODULE, .name = "cyphidcom", }, .description = "HID->COM RS232 Adapter", @@ -192,7 +190,6 @@ static struct usb_serial_driver cypress_hidcom_device = { static struct usb_serial_driver cypress_ca42v2_device = { .driver = { - .owner = THIS_MODULE, .name = "nokiaca42v2", }, .description = "Nokia CA-42 V2 Adapter", diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index d1dea3850576..a06485965412 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -262,7 +262,6 @@ MODULE_DEVICE_TABLE(usb, id_table_combined); static struct usb_serial_driver digi_acceleport_2_device = { .driver = { - .owner = THIS_MODULE, .name = "digi_2", }, .description = "Digi 2 port USB adapter", @@ -293,7 +292,6 @@ static struct usb_serial_driver digi_acceleport_2_device = { static struct usb_serial_driver digi_acceleport_4_device = { .driver = { - .owner = THIS_MODULE, .name = "digi_4", }, .description = "Digi 4 port USB adapter", diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index 405e835e93dd..aedcf7ebd269 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -43,7 +43,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver empeg_device = { .driver = { - .owner = THIS_MODULE, .name = "empeg", }, .id_table = id_table, diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 5f7a46bcace6..530b77fc2f78 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -967,7 +967,6 @@ static int f81232_resume(struct usb_serial *serial) static struct usb_serial_driver f81232_device = { .driver = { - .owner = THIS_MODULE, .name = "f81232", }, .id_table = f81232_id_table, @@ -994,7 +993,6 @@ static struct usb_serial_driver f81232_device = { static struct usb_serial_driver f81534a_device = { .driver = { - .owner = THIS_MODULE, .name = "f81534a", }, .id_table = f81534a_id_table, diff --git a/drivers/usb/serial/f81534.c b/drivers/usb/serial/f81534.c index ef126cd3d94f..685930ac8383 100644 --- a/drivers/usb/serial/f81534.c +++ b/drivers/usb/serial/f81534.c @@ -1538,7 +1538,6 @@ static int f81534_resume(struct usb_serial *serial) static struct usb_serial_driver f81534_device = { .driver = { - .owner = THIS_MODULE, .name = "f81534", }, .description = DRIVER_DESC, diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 76a04ab41100..6ac7a0a5cf07 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1079,6 +1079,22 @@ static const struct usb_device_id id_table_combined[] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, /* GMC devices */ { USB_DEVICE(GMC_VID, GMC_Z216C_PID) }, + /* Altera USB Blaster 3 */ + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_6022_PID, 1) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_6025_PID, 2) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_6026_PID, 2) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_6026_PID, 3) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_6029_PID, 2) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602A_PID, 2) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602A_PID, 3) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602C_PID, 1) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602D_PID, 1) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602D_PID, 2) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602E_PID, 1) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602E_PID, 2) }, + { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602E_PID, 3) }, + /* Abacus Electrics */ + { USB_DEVICE(FTDI_VID, ABACUS_OPTICAL_PROBE_PID) }, { } /* Terminating entry */ }; @@ -1443,9 +1459,11 @@ static void get_serial_info(struct tty_struct *tty, struct serial_struct *ss) struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); + mutex_lock(&priv->cfg_lock); ss->flags = priv->flags; ss->baud_base = priv->baud_base; ss->custom_divisor = priv->custom_divisor; + mutex_unlock(&priv->cfg_lock); } static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss) @@ -2871,7 +2889,6 @@ static int ftdi_ioctl(struct tty_struct *tty, static struct usb_serial_driver ftdi_device = { .driver = { - .owner = THIS_MODULE, .name = "ftdi_sio", .dev_groups = ftdi_groups, }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 5ee60ba2a73c..9acb6f837327 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -443,6 +443,11 @@ #define LINX_FUTURE_2_PID 0xF44C /* Linx future device */ /* + * Abacus Electrics + */ +#define ABACUS_OPTICAL_PROBE_PID 0xf458 /* ABACUS ELECTRICS Optical Probe */ + +/* * Oceanic product ids */ #define FTDI_OCEANIC_PID 0xF460 /* Oceanic dive instrument */ @@ -1612,3 +1617,16 @@ */ #define GMC_VID 0x1cd7 #define GMC_Z216C_PID 0x0217 /* GMC Z216C Adapter IR-USB */ + +/* + * Altera USB Blaster 3 (http://www.altera.com). + */ +#define ALTERA_VID 0x09fb +#define ALTERA_UB3_6022_PID 0x6022 +#define ALTERA_UB3_6025_PID 0x6025 +#define ALTERA_UB3_6026_PID 0x6026 +#define ALTERA_UB3_6029_PID 0x6029 +#define ALTERA_UB3_602A_PID 0x602a +#define ALTERA_UB3_602C_PID 0x602c +#define ALTERA_UB3_602D_PID 0x602d +#define ALTERA_UB3_602E_PID 0x602e diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 670e942fdaaa..b97ba8ed6801 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -104,7 +104,7 @@ struct garmin_packet { int seq; /* the real size of the data array, always > 0 */ int size; - __u8 data[]; + __u8 data[] __counted_by(size); }; /* structure used to keep the current state of the driver */ @@ -267,8 +267,7 @@ static int pkt_add(struct garmin_data *garmin_data_p, /* process only packets containing data ... */ if (data_length) { - pkt = kmalloc(sizeof(struct garmin_packet)+data_length, - GFP_ATOMIC); + pkt = kmalloc(struct_size(pkt, data, data_length), GFP_ATOMIC); if (!pkt) return 0; @@ -1413,7 +1412,6 @@ static void garmin_port_remove(struct usb_serial_port *port) /* All of the device info needed */ static struct usb_serial_driver garmin_device = { .driver = { - .owner = THIS_MODULE, .name = "garmin_gps", }, .description = "Garmin GPS usb/tty", diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 15b6dee3a8e5..757f0a586ddb 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -63,7 +63,6 @@ static int usb_serial_generic_calc_num_ports(struct usb_serial *serial, static struct usb_serial_driver usb_serial_generic_device = { .driver = { - .owner = THIS_MODULE, .name = "generic", }, .id_table = generic_device_ids, diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index abe4bbb0ac65..1fffda7647f9 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -770,11 +770,12 @@ static void edge_bulk_out_data_callback(struct urb *urb) static void edge_bulk_out_cmd_callback(struct urb *urb) { struct edgeport_port *edge_port = urb->context; + struct device *dev = &urb->dev->dev; int status = urb->status; atomic_dec(&CmdUrbs); - dev_dbg(&urb->dev->dev, "%s - FREE URB %p (outstanding %d)\n", - __func__, urb, atomic_read(&CmdUrbs)); + dev_dbg(dev, "%s - FREE URB %p (outstanding %d)\n", __func__, urb, + atomic_read(&CmdUrbs)); /* clean up the transfer buffer */ @@ -784,8 +785,7 @@ static void edge_bulk_out_cmd_callback(struct urb *urb) usb_free_urb(urb); if (status) { - dev_dbg(&urb->dev->dev, - "%s - nonzero write bulk status received: %d\n", + dev_dbg(dev, "%s - nonzero write bulk status received: %d\n", __func__, status); return; } @@ -1129,7 +1129,7 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, spin_lock_irqsave(&edge_port->ep_lock, flags); /* calculate number of bytes to put in fifo */ - copySize = min((unsigned int)count, + copySize = min_t(unsigned int, count, (edge_port->txCredits - fifo->count)); dev_dbg(&port->dev, "%s of %d byte(s) Fifo room %d -- will copy %d bytes\n", @@ -2978,7 +2978,6 @@ static void edge_port_remove(struct usb_serial_port *port) static struct usb_serial_driver edgeport_2port_device = { .driver = { - .owner = THIS_MODULE, .name = "edgeport_2", }, .description = "Edgeport 2 port adapter", @@ -3013,7 +3012,6 @@ static struct usb_serial_driver edgeport_2port_device = { static struct usb_serial_driver edgeport_4port_device = { .driver = { - .owner = THIS_MODULE, .name = "edgeport_4", }, .description = "Edgeport 4 port adapter", @@ -3048,7 +3046,6 @@ static struct usb_serial_driver edgeport_4port_device = { static struct usb_serial_driver edgeport_8port_device = { .driver = { - .owner = THIS_MODULE, .name = "edgeport_8", }, .description = "Edgeport 8 port adapter", @@ -3083,7 +3080,6 @@ static struct usb_serial_driver edgeport_8port_device = { static struct usb_serial_driver epic_device = { .driver = { - .owner = THIS_MODULE, .name = "epic", }, .description = "EPiC device", diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 7a3a6e539456..7d0584b2a234 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2670,7 +2670,6 @@ static int edge_resume(struct usb_serial *serial) static struct usb_serial_driver edgeport_1port_device = { .driver = { - .owner = THIS_MODULE, .name = "edgeport_ti_1", }, .description = "Edgeport TI 1 port adapter", @@ -2708,7 +2707,6 @@ static struct usb_serial_driver edgeport_1port_device = { static struct usb_serial_driver edgeport_2port_device = { .driver = { - .owner = THIS_MODULE, .name = "edgeport_ti_2", }, .description = "Edgeport TI 2 port adapter", diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index e11441bac44f..3c6a9b9b9c2b 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -496,7 +496,6 @@ MODULE_DEVICE_TABLE(usb, ipaq_id_table); /* All of the device info needed for the Compaq iPAQ */ static struct usb_serial_driver ipaq_device = { .driver = { - .owner = THIS_MODULE, .name = "ipaq", }, .description = "PocketPC PDA", diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index d04c7cc5c1c2..b1e672c2f423 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -285,7 +285,6 @@ static void ipw_close(struct usb_serial_port *port) static struct usb_serial_driver ipw_device = { .driver = { - .owner = THIS_MODULE, .name = "ipw", }, .description = "IPWireless converter", diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 82f108134e6f..a106b71e698f 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -71,7 +71,6 @@ MODULE_DEVICE_TABLE(usb, ir_id_table); static struct usb_serial_driver ir_device = { .driver = { - .owner = THIS_MODULE, .name = "ir-usb", }, .description = "IR Dongle", diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 77cba71bcccb..c21dcc9b6f05 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -1157,7 +1157,6 @@ static int iuu_remove_sysfs_attrs(struct usb_serial_port *port) static struct usb_serial_driver iuu_device = { .driver = { - .owner = THIS_MODULE, .name = "iuu_phoenix", }, .id_table = id_table, diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 0a783985197c..9129e0282c24 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -3001,7 +3001,6 @@ static void keyspan_port_remove(struct usb_serial_port *port) /* Structs for the devices, pre and post renumeration. */ static struct usb_serial_driver keyspan_pre_device = { .driver = { - .owner = THIS_MODULE, .name = "keyspan_no_firm", }, .description = "Keyspan - (without firmware)", @@ -3012,7 +3011,6 @@ static struct usb_serial_driver keyspan_pre_device = { static struct usb_serial_driver keyspan_1port_device = { .driver = { - .owner = THIS_MODULE, .name = "keyspan_1", }, .description = "Keyspan 1 port adapter", @@ -3036,7 +3034,6 @@ static struct usb_serial_driver keyspan_1port_device = { static struct usb_serial_driver keyspan_2port_device = { .driver = { - .owner = THIS_MODULE, .name = "keyspan_2", }, .description = "Keyspan 2 port adapter", @@ -3060,7 +3057,6 @@ static struct usb_serial_driver keyspan_2port_device = { static struct usb_serial_driver keyspan_4port_device = { .driver = { - .owner = THIS_MODULE, .name = "keyspan_4", }, .description = "Keyspan 4 port adapter", diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 0eef358b314a..e98b479593d3 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -676,7 +676,6 @@ static void keyspan_pda_port_remove(struct usb_serial_port *port) static struct usb_serial_driver keyspan_pda_fake_device = { .driver = { - .owner = THIS_MODULE, .name = "keyspan_pda_pre", }, .description = "Keyspan PDA - (prerenumeration)", @@ -687,7 +686,6 @@ static struct usb_serial_driver keyspan_pda_fake_device = { static struct usb_serial_driver keyspan_pda_device = { .driver = { - .owner = THIS_MODULE, .name = "keyspan_pda", }, .description = "Keyspan PDA", diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 394b3189e003..d36155b6d2bf 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -39,7 +39,7 @@ #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include "kl5kusb105.h" @@ -75,7 +75,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver kl5kusb105d_device = { .driver = { - .owner = THIS_MODULE, .name = "kl5kusb105d", }, .description = "KL5KUSB105D / PalmConnect", diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index 5e775f68fcb8..464433be2034 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -77,7 +77,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver kobil_device = { .driver = { - .owner = THIS_MODULE, .name = "kobil", }, .description = "KOBIL USB smart card terminal", @@ -156,8 +155,7 @@ static void kobil_init_termios(struct tty_struct *tty) { /* Default to echo off and other sane device settings */ tty->termios.c_lflag = 0; - tty->termios.c_iflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE); - tty->termios.c_iflag |= IGNBRK | IGNPAR | IXOFF; + tty->termios.c_iflag = IGNBRK | IGNPAR | IXOFF; /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */ tty->termios.c_oflag &= ~ONLCR; } diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 6570c8817a80..2bce8cc03aca 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -26,7 +26,7 @@ #include <linux/module.h> #include <linux/spinlock.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/serial.h> @@ -69,7 +69,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver mct_u232_device = { .driver = { - .owner = THIS_MODULE, .name = "mct_u232", }, .description = "MCT U232", diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 30ab565e0738..028878292901 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -341,7 +341,6 @@ static void metrousb_unthrottle(struct tty_struct *tty) static struct usb_serial_driver metrousb_device = { .driver = { - .owner = THIS_MODULE, .name = "metro-usb", }, .description = "Metrologic USB to Serial", diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 23544074eb1c..e59bfa7c8030 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1724,7 +1724,6 @@ static void mos7720_port_remove(struct usb_serial_port *port) static struct usb_serial_driver moschip7720_2port_driver = { .driver = { - .owner = THIS_MODULE, .name = "moschip7720", }, .description = "Moschip 2 port adapter", diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 8b0308d84270..93710b762893 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -66,29 +66,16 @@ #define MOS_WDR_TIMEOUT 5000 /* default urb timeout */ -#define MOS_PORT1 0x0200 -#define MOS_PORT2 0x0300 -#define MOS_VENREG 0x0000 -#define MOS_MAX_PORT 0x02 -#define MOS_WRITE 0x0E -#define MOS_READ 0x0D - /* Requests */ #define MCS_RD_RTYPE 0xC0 #define MCS_WR_RTYPE 0x40 #define MCS_RDREQ 0x0D #define MCS_WRREQ 0x0E -#define MCS_CTRL_TIMEOUT 500 #define VENDOR_READ_LENGTH (0x01) -#define MAX_NAME_LEN 64 - #define ZLP_REG1 0x3A /* Zero_Flag_Reg1 58 */ #define ZLP_REG5 0x3E /* Zero_Flag_Reg5 62 */ -/* For higher baud Rates use TIOCEXBAUD */ -#define TIOCEXBAUD 0x5462 - /* * Vendor id and device id defines * @@ -1737,9 +1724,51 @@ static void mos7840_port_remove(struct usb_serial_port *port) kfree(mos7840_port); } +static int mos7840_suspend(struct usb_serial *serial, pm_message_t message) +{ + struct moschip_port *mos7840_port; + struct usb_serial_port *port; + int i; + + for (i = 0; i < serial->num_ports; ++i) { + port = serial->port[i]; + if (!tty_port_initialized(&port->port)) + continue; + + mos7840_port = usb_get_serial_port_data(port); + + usb_kill_urb(mos7840_port->read_urb); + mos7840_port->read_urb_busy = false; + } + + return 0; +} + +static int mos7840_resume(struct usb_serial *serial) +{ + struct moschip_port *mos7840_port; + struct usb_serial_port *port; + int res; + int i; + + for (i = 0; i < serial->num_ports; ++i) { + port = serial->port[i]; + if (!tty_port_initialized(&port->port)) + continue; + + mos7840_port = usb_get_serial_port_data(port); + + mos7840_port->read_urb_busy = true; + res = usb_submit_urb(mos7840_port->read_urb, GFP_NOIO); + if (res) + mos7840_port->read_urb_busy = false; + } + + return 0; +} + static struct usb_serial_driver moschip7840_4port_device = { .driver = { - .owner = THIS_MODULE, .name = "mos7840", }, .description = DRIVER_DESC, @@ -1764,6 +1793,8 @@ static struct usb_serial_driver moschip7840_4port_device = { .port_probe = mos7840_port_probe, .port_remove = mos7840_port_remove, .read_bulk_callback = mos7840_bulk_in_callback, + .suspend = mos7840_suspend, + .resume = mos7840_resume, }; static struct usb_serial_driver * const serial_drivers[] = { diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c index 1f7bb3e4fcf2..ad5fdf55a02e 100644 --- a/drivers/usb/serial/mxuport.c +++ b/drivers/usb/serial/mxuport.c @@ -25,7 +25,7 @@ #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> /* Definitions for the vendor ID and device ID */ #define MX_USBSERIAL_VID 0x110A @@ -1278,7 +1278,6 @@ static int mxuport_resume(struct usb_serial *serial) static struct usb_serial_driver mxuport_device = { .driver = { - .owner = THIS_MODULE, .name = "mxuport", }, .description = "MOXA UPort", @@ -1315,4 +1314,5 @@ module_usb_serial_driver(serial_drivers, mxuport_idtable); MODULE_AUTHOR("Andrew Lunn <andrew@lunn.ch>"); MODULE_AUTHOR("<support@moxa.com>"); +MODULE_DESCRIPTION("Moxa UPORT USB Serial driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c index 20277c52dded..4d57a5902292 100644 --- a/drivers/usb/serial/navman.c +++ b/drivers/usb/serial/navman.c @@ -95,7 +95,6 @@ static int navman_write(struct tty_struct *tty, struct usb_serial_port *port, static struct usb_serial_driver navman_device = { .driver = { - .owner = THIS_MODULE, .name = "navman", }, .id_table = id_table, @@ -112,4 +111,5 @@ static struct usb_serial_driver * const serial_drivers[] = { module_usb_serial_driver(serial_drivers, id_table); +MODULE_DESCRIPTION("Navman USB Serial driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 41f1b872d277..397ebd5a3e74 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -49,7 +49,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver zyxel_omninet_device = { .driver = { - .owner = THIS_MODULE, .name = "omninet", }, .description = "ZyXEL - omni.net usb", diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index e31a6d77da3a..1ee84ccc4bbd 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -375,7 +375,6 @@ static void opticon_port_remove(struct usb_serial_port *port) static struct usb_serial_driver opticon_device = { .driver = { - .owner = THIS_MODULE, .name = "opticon", }, .id_table = id_table, diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 8a5846d4adf6..27879cc57536 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -251,6 +251,7 @@ static void option_instat_callback(struct urb *urb); #define QUECTEL_VENDOR_ID 0x2c7c /* These Quectel products use Quectel's vendor ID */ #define QUECTEL_PRODUCT_EC21 0x0121 +#define QUECTEL_PRODUCT_RG650V 0x0122 #define QUECTEL_PRODUCT_EM061K_LTA 0x0123 #define QUECTEL_PRODUCT_EM061K_LMS 0x0124 #define QUECTEL_PRODUCT_EC25 0x0125 @@ -279,6 +280,7 @@ static void option_instat_callback(struct urb *urb); #define QUECTEL_PRODUCT_EG912Y 0x6001 #define QUECTEL_PRODUCT_EC200S_CN 0x6002 #define QUECTEL_PRODUCT_EC200A 0x6005 +#define QUECTEL_PRODUCT_EG916Q 0x6007 #define QUECTEL_PRODUCT_EM061K_LWW 0x6008 #define QUECTEL_PRODUCT_EM061K_LCN 0x6009 #define QUECTEL_PRODUCT_EC200T 0x6026 @@ -609,6 +611,7 @@ static void option_instat_callback(struct urb *urb); /* Sierra Wireless products */ #define SIERRA_VENDOR_ID 0x1199 #define SIERRA_PRODUCT_EM9191 0x90d3 +#define SIERRA_PRODUCT_EM9291 0x90e3 /* UNISOC (Spreadtrum) products */ #define UNISOC_VENDOR_ID 0x1782 @@ -617,11 +620,6 @@ static void option_instat_callback(struct urb *urb); /* Luat Air72*U series based on UNISOC UIS8910 uses UNISOC's vendor ID */ #define LUAT_PRODUCT_AIR720U 0x4e00 -/* MeiG Smart Technology products */ -#define MEIGSMART_VENDOR_ID 0x2dee -/* MeiG Smart SLM320 based on UNISOC UIS8910 */ -#define MEIGSMART_PRODUCT_SLM320 0x4d41 - /* Device flags */ /* Highest interface number which can be used with NCTRL() and RSVD() */ @@ -1268,7 +1266,10 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) }, { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) }, { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG912Y, 0xff, 0, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG916Q, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500K, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RG650V, 0xff, 0xff, 0x30) }, + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RG650V, 0xff, 0, 0) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) }, { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) }, @@ -1358,30 +1359,74 @@ static const struct usb_device_id option_ids[] = { .driver_info = NCTRL(2) | RSVD(3) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1063, 0xff), /* Telit LN920 (ECM) */ .driver_info = NCTRL(0) | RSVD(1) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1070, 0xff), /* Telit FN990 (rmnet) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1070, 0xff), /* Telit FN990A (rmnet) */ .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1071, 0xff), /* Telit FN990 (MBIM) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1071, 0xff), /* Telit FN990A (MBIM) */ .driver_info = NCTRL(0) | RSVD(1) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1072, 0xff), /* Telit FN990 (RNDIS) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1072, 0xff), /* Telit FN990A (RNDIS) */ .driver_info = NCTRL(2) | RSVD(3) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1073, 0xff), /* Telit FN990 (ECM) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1073, 0xff), /* Telit FN990A (ECM) */ .driver_info = NCTRL(0) | RSVD(1) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1075, 0xff), /* Telit FN990 (PCIe) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1075, 0xff), /* Telit FN990A (PCIe) */ .driver_info = RSVD(0) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1080, 0xff), /* Telit FE990 (rmnet) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1080, 0xff), /* Telit FE990A (rmnet) */ .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1081, 0xff), /* Telit FE990 (MBIM) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1081, 0xff), /* Telit FE990A (MBIM) */ .driver_info = NCTRL(0) | RSVD(1) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1082, 0xff), /* Telit FE990 (RNDIS) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1082, 0xff), /* Telit FE990A (RNDIS) */ .driver_info = NCTRL(2) | RSVD(3) }, - { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1083, 0xff), /* Telit FE990 (ECM) */ + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1083, 0xff), /* Telit FE990A (ECM) */ .driver_info = NCTRL(0) | RSVD(1) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a0, 0xff), /* Telit FN20C04 (rmnet) */ .driver_info = RSVD(0) | NCTRL(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a2, 0xff), /* Telit FN920C04 (MBIM) */ + .driver_info = NCTRL(4) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a4, 0xff), /* Telit FN20C04 (rmnet) */ .driver_info = RSVD(0) | NCTRL(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a7, 0xff), /* Telit FN920C04 (MBIM) */ + .driver_info = NCTRL(4) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a9, 0xff), /* Telit FN20C04 (rmnet) */ .driver_info = RSVD(0) | NCTRL(2) | RSVD(3) | RSVD(4) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10aa, 0xff), /* Telit FN920C04 (MBIM) */ + .driver_info = NCTRL(3) | RSVD(4) | RSVD(5) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b0, 0xff, 0xff, 0x30), /* Telit FE990B (rmnet) */ + .driver_info = NCTRL(5) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b0, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b0, 0xff, 0xff, 0x60) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b1, 0xff, 0xff, 0x30), /* Telit FE990B (MBIM) */ + .driver_info = NCTRL(6) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b1, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b1, 0xff, 0xff, 0x60) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b2, 0xff, 0xff, 0x30), /* Telit FE990B (RNDIS) */ + .driver_info = NCTRL(6) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b2, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b2, 0xff, 0xff, 0x60) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b3, 0xff, 0xff, 0x30), /* Telit FE990B (ECM) */ + .driver_info = NCTRL(6) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b3, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10b3, 0xff, 0xff, 0x60) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10c0, 0xff), /* Telit FE910C04 (rmnet) */ + .driver_info = RSVD(0) | NCTRL(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10c4, 0xff), /* Telit FE910C04 (rmnet) */ + .driver_info = RSVD(0) | NCTRL(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10c8, 0xff), /* Telit FE910C04 (rmnet) */ + .driver_info = RSVD(0) | NCTRL(2) | RSVD(3) | RSVD(4) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d0, 0xff, 0xff, 0x30), /* Telit FN990B (rmnet) */ + .driver_info = NCTRL(5) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d0, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d0, 0xff, 0xff, 0x60) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d1, 0xff, 0xff, 0x30), /* Telit FN990B (MBIM) */ + .driver_info = NCTRL(6) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d1, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d1, 0xff, 0xff, 0x60) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d2, 0xff, 0xff, 0x30), /* Telit FN990B (RNDIS) */ + .driver_info = NCTRL(6) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d2, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d2, 0xff, 0xff, 0x60) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d3, 0xff, 0xff, 0x30), /* Telit FN990B (ECM) */ + .driver_info = NCTRL(6) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d3, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(TELIT_VENDOR_ID, 0x10d3, 0xff, 0xff, 0x60) }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910), .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM), @@ -1425,6 +1470,10 @@ static const struct usb_device_id option_ids[] = { .driver_info = NCTRL(0) | RSVD(1) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff), /* Telit LN940 (MBIM) */ .driver_info = NCTRL(0) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x3000, 0xff), /* Telit FN912 */ + .driver_info = RSVD(0) | NCTRL(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x3001, 0xff), /* Telit FN912 */ + .driver_info = RSVD(0) | NCTRL(2) | RSVD(3) | RSVD(4) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7010, 0xff), /* Telit LE910-S1 (RNDIS) */ .driver_info = NCTRL(2) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7011, 0xff), /* Telit LE910-S1 (ECM) */ @@ -1433,6 +1482,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = NCTRL(2) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x701b, 0xff), /* Telit LE910R1 (ECM) */ .driver_info = NCTRL(2) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x9000, 0xff), /* Telit generic core-dump device */ + .driver_info = NCTRL(0) }, { USB_DEVICE(TELIT_VENDOR_ID, 0x9010), /* Telit SBL FN980 flashing device */ .driver_info = NCTRL(0) | ZLP }, { USB_DEVICE(TELIT_VENDOR_ID, 0x9200), /* Telit LE910S1 flashing device */ @@ -2224,6 +2275,12 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7106_2COM, 0x02, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x7126, 0xff, 0x00, 0x00), + .driver_info = NCTRL(2) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x7127, 0xff, 0x00, 0x00), + .driver_info = NCTRL(2) | NCTRL(3) | NCTRL(4) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x7129, 0xff, 0x00, 0x00), /* MediaTek T7XX */ + .driver_info = NCTRL(2) | NCTRL(3) | NCTRL(4) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MPL200), .driver_info = RSVD(1) | RSVD(4) }, @@ -2284,6 +2341,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(3) }, { USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0f0, 0xff), /* Foxconn T99W373 MBIM */ .driver_info = RSVD(3) }, + { USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe145, 0xff), /* Foxconn T99W651 RNDIS */ + .driver_info = RSVD(5) | RSVD(6) }, { USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 (IOT version) */ .driver_info = RSVD(4) | RSVD(5) | RSVD(6) }, { USB_DEVICE(0x1782, 0x4d10) }, /* Fibocom L610 (AT mode) */ @@ -2298,6 +2357,9 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0xff, 0x30) }, /* Fibocom FG150 Diag */ { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0, 0) }, /* Fibocom FG150 AT */ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0111, 0xff) }, /* Fibocom FM160 (MBIM mode) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x0112, 0xff, 0xff, 0x30) }, /* Fibocom FG132 Diag */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x0112, 0xff, 0xff, 0x40) }, /* Fibocom FG132 AT */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x0112, 0xff, 0, 0) }, /* Fibocom FG132 NMEA */ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0115, 0xff), /* Fibocom FM135 (laptop MBIM) */ .driver_info = RSVD(5) }, { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a0, 0xff) }, /* Fibocom NL668-AM/NL652-EU (laptop MBIM) */ @@ -2309,6 +2371,14 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0a05, 0xff) }, /* Fibocom FM650-CN (NCM mode) */ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0a06, 0xff) }, /* Fibocom FM650-CN (RNDIS mode) */ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0a07, 0xff) }, /* Fibocom FM650-CN (MBIM mode) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d41, 0xff, 0, 0) }, /* MeiG Smart SLM320 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d57, 0xff, 0, 0) }, /* MeiG Smart SLM770A */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0, 0) }, /* MeiG Smart SRM815 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0x10, 0x02) }, /* MeiG Smart SLM828 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0x10, 0x03) }, /* MeiG Smart SLM828 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0xff, 0x30) }, /* MeiG Smart SRM815 and SRM825L */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0xff, 0x40) }, /* MeiG Smart SRM825L */ + { USB_DEVICE_AND_INTERFACE_INFO(0x2dee, 0x4d22, 0xff, 0xff, 0x60) }, /* MeiG Smart SRM825L */ { USB_DEVICE_INTERFACE_CLASS(0x2df3, 0x9d03, 0xff) }, /* LongSung M5710 */ { USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) }, /* GosunCn GM500 RNDIS */ { USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) }, /* GosunCn GM500 MBIM */ @@ -2321,13 +2391,57 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(4) }, { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0115, 0xff), /* Rolling RW135-GL (laptop MBIM) */ .driver_info = RSVD(5) }, + { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0802, 0xff), /* Rolling RW350-GL (laptop MBIM) */ + .driver_info = RSVD(5) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Global */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0101, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WRD for Global SKU */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0101, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0101, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0106, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WRD for China SKU */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0106, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0106, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0111, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for SA */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0111, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0111, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0112, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for EU */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0112, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0112, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0113, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for NA */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0113, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0113, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0115, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for China EDU */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0115, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0115, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0116, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Golbal EDU */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0116, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0116, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010a, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WRD for WWAN Ready */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010a, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010a, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010b, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for WWAN Ready */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010b, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010b, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010c, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WRD for WWAN Ready */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010c, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010c, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010d, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for WWAN Ready */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010d, 0xff, 0x00, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x010d, 0xff, 0xff, 0x40) }, { USB_DEVICE_AND_INTERFACE_INFO(OPPO_VENDOR_ID, OPPO_PRODUCT_R11, 0xff, 0xff, 0x30) }, { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9191, 0xff, 0xff, 0x30) }, { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9191, 0xff, 0xff, 0x40) }, { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9191, 0xff, 0, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9291, 0xff, 0xff, 0x30) }, + { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9291, 0xff, 0xff, 0x40) }, { USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, TOZED_PRODUCT_LT70C, 0xff, 0, 0) }, { USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, LUAT_PRODUCT_AIR720U, 0xff, 0, 0) }, - { USB_DEVICE_AND_INTERFACE_INFO(MEIGSMART_VENDOR_ID, MEIGSMART_PRODUCT_SLM320, 0xff, 0, 0) }, + { USB_DEVICE_INTERFACE_CLASS(0x1bbb, 0x0530, 0xff), /* TCL IK512 MBIM */ + .driver_info = NCTRL(1) }, + { USB_DEVICE_INTERFACE_CLASS(0x1bbb, 0x0640, 0xff), /* TCL IK512 ECM */ + .driver_info = NCTRL(3) }, + { USB_DEVICE_INTERFACE_CLASS(0x2949, 0x8700, 0xff) }, /* Neoway N723-EA */ { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); @@ -2338,7 +2452,6 @@ MODULE_DEVICE_TABLE(usb, option_ids); static struct usb_serial_driver option_1port_device = { .driver = { - .owner = THIS_MODULE, .name = "option1", }, .description = "GSM modem (1-port)", diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index fa07f6ff9ecc..24068368892c 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -138,7 +138,6 @@ static void oti6858_port_remove(struct usb_serial_port *port); /* device info */ static struct usb_serial_driver oti6858_device = { .driver = { - .owner = THIS_MODULE, .name = "oti6858", }, .id_table = id_table, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index d93f5d584557..010688dd9e49 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -24,13 +24,14 @@ #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "pl2303.h" #define PL2303_QUIRK_UART_STATE_IDX0 BIT(0) #define PL2303_QUIRK_LEGACY BIT(1) #define PL2303_QUIRK_ENDPOINT_HACK BIT(2) +#define PL2303_QUIRK_NO_BREAK_GETLINE BIT(3) static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID), @@ -118,6 +119,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, { USB_DEVICE(AT_VENDOR_ID, AT_VTKIT3_PRODUCT_ID) }, { USB_DEVICE(IBM_VENDOR_ID, IBM_PRODUCT_ID) }, + { USB_DEVICE(MACROSILICON_VENDOR_ID, MACROSILICON_MS3020_PRODUCT_ID) }, { } /* Terminating entry */ }; @@ -466,6 +468,25 @@ static int pl2303_detect_type(struct usb_serial *serial) return -ENODEV; } +static bool pl2303_is_hxd_clone(struct usb_serial *serial) +{ + struct usb_device *udev = serial->dev; + unsigned char *buf; + int ret; + + buf = kmalloc(7, GFP_KERNEL); + if (!buf) + return false; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + + kfree(buf); + + return ret == -EPIPE; +} + static int pl2303_startup(struct usb_serial *serial) { struct pl2303_serial_private *spriv; @@ -488,6 +509,9 @@ static int pl2303_startup(struct usb_serial *serial) spriv->quirks = (unsigned long)usb_get_serial_data(serial); spriv->quirks |= spriv->type->quirks; + if (type == TYPE_HXD && pl2303_is_hxd_clone(serial)) + spriv->quirks |= PL2303_QUIRK_NO_BREAK_GETLINE; + usb_set_serial_data(serial, spriv); if (type != TYPE_HXN) { @@ -724,9 +748,18 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, static int pl2303_get_line_request(struct usb_serial_port *port, unsigned char buf[7]) { - struct usb_device *udev = port->serial->dev; + struct usb_serial *serial = port->serial; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); + struct usb_device *udev = serial->dev; int ret; + if (spriv->quirks & PL2303_QUIRK_NO_BREAK_GETLINE) { + struct pl2303_private *priv = usb_get_serial_port_data(port); + + memcpy(buf, priv->line_settings, 7); + return 0; + } + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, 0, 0, buf, 7, 100); @@ -1063,9 +1096,13 @@ static int pl2303_carrier_raised(struct usb_serial_port *port) static int pl2303_set_break(struct usb_serial_port *port, bool enable) { struct usb_serial *serial = port->serial; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); u16 state; int result; + if (spriv->quirks & PL2303_QUIRK_NO_BREAK_GETLINE) + return -ENOTTY; + if (enable) state = BREAK_ON; else @@ -1234,7 +1271,6 @@ static void pl2303_process_read_urb(struct urb *urb) static struct usb_serial_driver pl2303_device = { .driver = { - .owner = THIS_MODULE, .name = "pl2303", }, .id_table = id_table, diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index 732f9b13ad5d..d60eda7f6eda 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -171,3 +171,7 @@ /* Allied Telesis VT-Kit3 */ #define AT_VENDOR_ID 0x0caa #define AT_VTKIT3_PRODUCT_ID 0x3001 + +/* Macrosilicon MS3020 */ +#define MACROSILICON_VENDOR_ID 0x345f +#define MACROSILICON_MS3020_PRODUCT_ID 0x3020 diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c index 929ffba663f2..485ec5b07122 100644 --- a/drivers/usb/serial/qcaux.c +++ b/drivers/usb/serial/qcaux.c @@ -72,7 +72,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver qcaux_device = { .driver = { - .owner = THIS_MODULE, .name = "qcaux", }, .id_table = id_table, @@ -84,4 +83,5 @@ static struct usb_serial_driver * const serial_drivers[] = { }; module_usb_serial_driver(serial_drivers, id_table); +MODULE_DESCRIPTION("Qualcomm USB Auxiliary Serial Port driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 703a9c563557..13c664317a05 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -166,6 +166,8 @@ static const struct usb_device_id id_table[] = { {DEVICE_SWI(0x1199, 0x9090)}, /* Sierra Wireless EM7565 QDL */ {DEVICE_SWI(0x1199, 0x9091)}, /* Sierra Wireless EM7565 */ {DEVICE_SWI(0x1199, 0x90d2)}, /* Sierra Wireless EM9191 QDL */ + {DEVICE_SWI(0x1199, 0x90e4)}, /* Sierra Wireless EM86xx QDL*/ + {DEVICE_SWI(0x1199, 0x90e5)}, /* Sierra Wireless EM86xx */ {DEVICE_SWI(0x1199, 0xc080)}, /* Sierra Wireless EM7590 QDL */ {DEVICE_SWI(0x1199, 0xc081)}, /* Sierra Wireless EM7590 */ {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ @@ -454,7 +456,6 @@ static void qc_release(struct usb_serial *serial) static struct usb_serial_driver qcdevice = { .driver = { - .owner = THIS_MODULE, .name = "qcserial", }, .description = "Qualcomm USB modem", diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 821f25e52ec2..72fe83a6c978 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -9,7 +9,7 @@ * */ -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/tty.h> @@ -503,7 +503,7 @@ static void qt2_process_read_urb(struct urb *urb) newport = *(ch + 3); - if (newport > serial->num_ports) { + if (newport >= serial->num_ports) { dev_err(&port->dev, "%s - port change to invalid port: %i\n", __func__, newport); @@ -924,7 +924,6 @@ write_out: static struct usb_serial_driver qt2_device = { .driver = { - .owner = THIS_MODULE, .name = "quatech-serial", }, .description = DRIVER_DESC, diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 6accbecb6318..238b54993446 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -284,7 +284,6 @@ static int safe_startup(struct usb_serial *serial) static struct usb_serial_driver safe_device = { .driver = { - .owner = THIS_MODULE, .name = "safe_serial", }, .id_table = id_table, diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 353b2549eaa8..741e68e46139 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -421,7 +421,7 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, unsigned long flags; unsigned char *buffer; struct urb *urb; - size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER); + size_t writesize = min_t(size_t, count, MAX_TRANSFER); int retval = 0; /* verify that we actually have some data to write */ @@ -1021,7 +1021,6 @@ static int sierra_resume(struct usb_serial *serial) static struct usb_serial_driver sierra_device = { .driver = { - .owner = THIS_MODULE, .name = "sierra", }, .description = "Sierra USB modem", diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 09a972a838ee..11077beb7232 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -49,16 +49,6 @@ static const struct usb_device_id id_table[] = { }; MODULE_DEVICE_TABLE(usb, id_table); -struct spcp8x5_usb_ctrl_arg { - u8 type; - u8 cmd; - u8 cmd_type; - u16 value; - u16 index; - u16 length; -}; - - /* spcp8x5 spec register define */ #define MCR_CONTROL_LINE_RTS 0x02 #define MCR_CONTROL_LINE_DTR 0x01 @@ -462,7 +452,6 @@ static int spcp8x5_tiocmget(struct tty_struct *tty) static struct usb_serial_driver spcp8x5_device = { .driver = { - .owner = THIS_MODULE, .name = "SPCP8x5", }, .id_table = id_table, diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index 1e1888b66305..df21009bdf42 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -500,7 +500,6 @@ static void ssu100_process_read_urb(struct urb *urb) static struct usb_serial_driver ssu100_device = { .driver = { - .owner = THIS_MODULE, .name = "ssu100", }, .description = DRIVER_DESC, diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index d7f73ad6e778..58962bcbf9ba 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -169,7 +169,6 @@ static void symbol_port_remove(struct usb_serial_port *port) static struct usb_serial_driver symbol_device = { .driver = { - .owner = THIS_MODULE, .name = "symbol", }, .id_table = id_table, @@ -190,4 +189,5 @@ static struct usb_serial_driver * const serial_drivers[] = { module_usb_serial_driver(serial_drivers, id_table); +MODULE_DESCRIPTION("Symbol USB barcode to serial driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 0fba25abf671..a0c244bc77c0 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -417,7 +417,6 @@ static const struct usb_device_id ti_id_table_combined[] = { static struct usb_serial_driver ti_1port_device = { .driver = { - .owner = THIS_MODULE, .name = "ti_usb_3410_5052_1", }, .description = "TI USB 3410 1 port adapter", @@ -450,7 +449,6 @@ static struct usb_serial_driver ti_1port_device = { static struct usb_serial_driver ti_2port_device = { .driver = { - .owner = THIS_MODULE, .name = "ti_usb_3410_5052_2", }, .description = "TI USB 5052 2 port adapter", diff --git a/drivers/usb/serial/upd78f0730.c b/drivers/usb/serial/upd78f0730.c index 46952182e04f..15a17bf111f1 100644 --- a/drivers/usb/serial/upd78f0730.c +++ b/drivers/usb/serial/upd78f0730.c @@ -407,7 +407,6 @@ static void upd78f0730_close(struct usb_serial_port *port) static struct usb_serial_driver upd78f0730_device = { .driver = { - .owner = THIS_MODULE, .name = "upd78f0730", }, .id_table = id_table, diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c index 24b8772a345e..a0afaf254d12 100644 --- a/drivers/usb/serial/usb-serial-simple.c +++ b/drivers/usb/serial/usb-serial-simple.c @@ -24,7 +24,6 @@ static const struct usb_device_id vendor##_id_table[] = { \ }; \ static struct usb_serial_driver vendor##_device = { \ .driver = { \ - .owner = THIS_MODULE, \ .name = #vendor, \ }, \ .id_table = vendor##_id_table, \ @@ -101,6 +100,11 @@ DEVICE(nokia, NOKIA_IDS); { USB_DEVICE(0x09d7, 0x0100) } /* NovAtel FlexPack GPS */ DEVICE_N(novatel_gps, NOVATEL_IDS, 3); +/* OWON electronic test and measurement equipment driver */ +#define OWON_IDS() \ + { USB_DEVICE(0x5345, 0x1234) } /* HDS200 oscilloscopes and others */ +DEVICE(owon, OWON_IDS); + /* Siemens USB/MPI adapter */ #define SIEMENS_IDS() \ { USB_DEVICE(0x908, 0x0004) } @@ -135,6 +139,7 @@ static struct usb_serial_driver * const serial_drivers[] = { &motorola_tetra_device, &nokia_device, &novatel_gps_device, + &owon_device, &siemens_mpi_device, &suunto_device, &vivopay_device, @@ -154,6 +159,7 @@ static const struct usb_device_id id_table[] = { MOTOROLA_TETRA_IDS(), NOKIA_IDS(), NOVATEL_IDS(), + OWON_IDS(), SIEMENS_IDS(), SUUNTO_IDS(), VIVOPAY_IDS(), @@ -163,4 +169,5 @@ static const struct usb_device_id id_table[] = { MODULE_DEVICE_TABLE(usb, id_table); module_usb_serial_driver(serial_drivers, id_table); +MODULE_DESCRIPTION("USB Serial 'Simple' driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index f1e91eb7f8a4..7266558d823a 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -706,14 +706,12 @@ static const struct usb_device_id *match_dynamic_id(struct usb_interface *intf, { struct usb_dynid *dynid; - spin_lock(&drv->dynids.lock); + guard(mutex)(&usb_dynids_lock); list_for_each_entry(dynid, &drv->dynids.list, node) { if (usb_match_one_id(intf, &dynid->id)) { - spin_unlock(&drv->dynids.lock); return &dynid->id; } } - spin_unlock(&drv->dynids.lock); return NULL; } @@ -1459,17 +1457,18 @@ static void usb_serial_deregister(struct usb_serial_driver *device) } /** - * usb_serial_register_drivers - register drivers for a usb-serial module + * __usb_serial_register_drivers - register drivers for a usb-serial module * @serial_drivers: NULL-terminated array of pointers to drivers to be registered + * @owner: owning module * @name: name of the usb_driver for this set of @serial_drivers * @id_table: list of all devices this @serial_drivers set binds to * * Registers all the drivers in the @serial_drivers array, and dynamically * creates a struct usb_driver with the name @name and id_table of @id_table. */ -int usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[], - const char *name, - const struct usb_device_id *id_table) +int __usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[], + struct module *owner, const char *name, + const struct usb_device_id *id_table) { int rc; struct usb_driver *udriver; @@ -1514,6 +1513,7 @@ int usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[] for (sd = serial_drivers; *sd; ++sd) { (*sd)->usb_driver = udriver; + (*sd)->driver.owner = owner; rc = usb_serial_register(*sd); if (rc) goto err_deregister_drivers; @@ -1532,7 +1532,7 @@ err_free_driver: kfree(udriver); return rc; } -EXPORT_SYMBOL_GPL(usb_serial_register_drivers); +EXPORT_SYMBOL_GPL(__usb_serial_register_drivers); /** * usb_serial_deregister_drivers - deregister drivers for a usb-serial module diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c index 6934970f180d..ec9fff794b36 100644 --- a/drivers/usb/serial/usb_debug.c +++ b/drivers/usb/serial/usb_debug.c @@ -76,26 +76,31 @@ static void usb_debug_process_read_urb(struct urb *urb) usb_serial_generic_process_read_urb(urb); } +static void usb_debug_init_termios(struct tty_struct *tty) +{ + tty->termios.c_lflag &= ~(ECHO | ECHONL); +} + static struct usb_serial_driver debug_device = { .driver = { - .owner = THIS_MODULE, .name = "debug", }, .id_table = id_table, .num_ports = 1, .bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE, .break_ctl = usb_debug_break_ctl, + .init_termios = usb_debug_init_termios, .process_read_urb = usb_debug_process_read_urb, }; static struct usb_serial_driver dbc_device = { .driver = { - .owner = THIS_MODULE, .name = "xhci_dbc", }, .id_table = dbc_id_table, .num_ports = 1, .break_ctl = usb_debug_break_ctl, + .init_termios = usb_debug_init_termios, .process_read_urb = usb_debug_process_read_urb, }; @@ -104,4 +109,5 @@ static struct usb_serial_driver * const serial_drivers[] = { }; module_usb_serial_driver(serial_drivers, id_table_combined); +MODULE_DESCRIPTION("USB Debug cable driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 4412834db21c..062a38fe0c1c 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -161,7 +161,6 @@ MODULE_DEVICE_TABLE(usb, id_table_combined); and Palm 4.0 devices */ static struct usb_serial_driver handspring_device = { .driver = { - .owner = THIS_MODULE, .name = "visor", }, .description = "Handspring Visor / Palm OS", @@ -180,7 +179,6 @@ static struct usb_serial_driver handspring_device = { /* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */ static struct usb_serial_driver clie_5_device = { .driver = { - .owner = THIS_MODULE, .name = "clie_5", }, .description = "Sony Clie 5.0", @@ -200,7 +198,6 @@ static struct usb_serial_driver clie_5_device = { /* device info for the Sony Clie OS version 3.5 */ static struct usb_serial_driver clie_3_5_device = { .driver = { - .owner = THIS_MODULE, .name = "clie_3.5", }, .description = "Sony Clie 3.5", diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index ca48e90a8e81..009faeb2ef55 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -91,7 +91,6 @@ static int whiteheat_break_ctl(struct tty_struct *tty, int break_state); static struct usb_serial_driver whiteheat_fake_device = { .driver = { - .owner = THIS_MODULE, .name = "whiteheatnofirm", }, .description = "Connect Tech - WhiteHEAT - (prerenumeration)", @@ -103,7 +102,6 @@ static struct usb_serial_driver whiteheat_fake_device = { static struct usb_serial_driver whiteheat_device = { .driver = { - .owner = THIS_MODULE, .name = "whiteheat", }, .description = "Connect Tech - WhiteHEAT", diff --git a/drivers/usb/serial/wishbone-serial.c b/drivers/usb/serial/wishbone-serial.c index ff4092f9b33c..670d573f6b63 100644 --- a/drivers/usb/serial/wishbone-serial.c +++ b/drivers/usb/serial/wishbone-serial.c @@ -70,7 +70,6 @@ static void wishbone_serial_close(struct usb_serial_port *port) static struct usb_serial_driver wishbone_serial_device = { .driver = { - .owner = THIS_MODULE, .name = "wishbone_serial", }, .id_table = id_table, diff --git a/drivers/usb/serial/xr_serial.c b/drivers/usb/serial/xr_serial.c index 1d9a12628f81..4186e791b384 100644 --- a/drivers/usb/serial/xr_serial.c +++ b/drivers/usb/serial/xr_serial.c @@ -1082,7 +1082,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static struct usb_serial_driver xr_device = { .driver = { - .owner = THIS_MODULE, .name = "xr_serial", }, .id_table = id_table, diff --git a/drivers/usb/serial/xsens_mt.c b/drivers/usb/serial/xsens_mt.c index cf262c9a9638..382b3698c1d5 100644 --- a/drivers/usb/serial/xsens_mt.c +++ b/drivers/usb/serial/xsens_mt.c @@ -49,7 +49,6 @@ static int xsens_mt_probe(struct usb_serial *serial, static struct usb_serial_driver xsens_mt_device = { .driver = { - .owner = THIS_MODULE, .name = "xsens_mt", }, .id_table = id_table, diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig index d17b60a644ef..4be1d617d63d 100644 --- a/drivers/usb/storage/Kconfig +++ b/drivers/usb/storage/Kconfig @@ -3,8 +3,7 @@ # USB Storage driver configuration # -comment "NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may" -comment "also be needed; see USB_STORAGE Help for more info" +comment "NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed; see USB_STORAGE Help for more info" config USB_STORAGE tristate "USB Mass Storage support" diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile index 46635fa4a340..28db337f190b 100644 --- a/drivers/usb/storage/Makefile +++ b/drivers/usb/storage/Makefile @@ -8,7 +8,7 @@ ccflags-y := -I $(srctree)/drivers/scsi -ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=USB_STORAGE +ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE='"USB_STORAGE"' obj-$(CONFIG_USB_UAS) += uas.o obj-$(CONFIG_USB_STORAGE) += usb-storage.o diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c index 115f05a6201a..e01f3a42bde4 100644 --- a/drivers/usb/storage/alauda.c +++ b/drivers/usb/storage/alauda.c @@ -36,7 +36,7 @@ MODULE_DESCRIPTION("Driver for Alauda-based card readers"); MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); /* * Status bytes @@ -105,6 +105,8 @@ struct alauda_info { unsigned char sense_key; unsigned long sense_asc; /* additional sense code */ unsigned long sense_ascq; /* additional sense code qualifier */ + + bool media_initialized; }; #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) ) @@ -130,7 +132,7 @@ static int init_alauda(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id alauda_usb_ids[] = { +static const struct usb_device_id alauda_usb_ids[] = { # include "unusual_alauda.h" { } /* Terminating entry */ }; @@ -152,7 +154,7 @@ MODULE_DEVICE_TABLE(usb, alauda_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev alauda_unusual_dev_list[] = { +static const struct us_unusual_dev alauda_unusual_dev_list[] = { # include "unusual_alauda.h" { } /* Terminating entry */ }; @@ -172,7 +174,7 @@ struct alauda_card_info { unsigned char zoneshift; /* 1<<zs blocks per zone */ }; -static struct alauda_card_info alauda_card_ids[] = { +static const struct alauda_card_info alauda_card_ids[] = { /* NAND flash */ { 0x6e, 20, 8, 4, 8}, /* 1 MB */ { 0xe8, 20, 8, 4, 8}, /* 1 MB */ @@ -198,7 +200,7 @@ static struct alauda_card_info alauda_card_ids[] = { { 0,} }; -static struct alauda_card_info *alauda_card_find_id(unsigned char id) +static const struct alauda_card_info *alauda_card_find_id(unsigned char id) { int i; @@ -381,7 +383,7 @@ static int alauda_init_media(struct us_data *us) { unsigned char *data = us->iobuf; int ready = 0; - struct alauda_card_info *media_info; + const struct alauda_card_info *media_info; unsigned int num_zones; while (ready == 0) { @@ -476,11 +478,12 @@ static int alauda_check_media(struct us_data *us) } /* Check for media change */ - if (status[0] & 0x08) { + if (status[0] & 0x08 || !info->media_initialized) { usb_stor_dbg(us, "Media change detected\n"); alauda_free_maps(&MEDIA_INFO(us)); - alauda_init_media(us); - + rc = alauda_init_media(us); + if (rc == USB_STOR_TRANSPORT_GOOD) + info->media_initialized = true; info->sense_key = UNIT_ATTENTION; info->sense_asc = 0x28; info->sense_ascq = 0x00; @@ -1129,7 +1132,7 @@ static int alauda_transport(struct scsi_cmnd *srb, struct us_data *us) int rc; struct alauda_info *info = (struct alauda_info *) us->extra; unsigned char *ptr = us->iobuf; - static unsigned char inquiry_response[36] = { + static const unsigned char inquiry_response[36] = { 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 }; diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c index 98b3ec352a13..2fce5f95be51 100644 --- a/drivers/usb/storage/cypress_atacb.c +++ b/drivers/usb/storage/cypress_atacb.c @@ -22,7 +22,7 @@ MODULE_DESCRIPTION("SAT support for Cypress USB/ATA bridges with ATACB"); MODULE_AUTHOR("Matthieu Castet <castet.matthieu@free.fr>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); /* * The table of devices @@ -33,7 +33,7 @@ MODULE_IMPORT_NS(USB_STORAGE); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id cypress_usb_ids[] = { +static const struct usb_device_id cypress_usb_ids[] = { # include "unusual_cypress.h" { } /* Terminating entry */ }; @@ -55,7 +55,7 @@ MODULE_DEVICE_TABLE(usb, cypress_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev cypress_unusual_dev_list[] = { +static const struct us_unusual_dev cypress_unusual_dev_list[] = { # include "unusual_cypress.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c index bcc4a2fad863..9ba369483c9b 100644 --- a/drivers/usb/storage/datafab.c +++ b/drivers/usb/storage/datafab.c @@ -54,7 +54,7 @@ MODULE_DESCRIPTION("Driver for Datafab USB Compact Flash reader"); MODULE_AUTHOR("Jimmie Mayfield <mayfield+datafab@sackheads.org>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); struct datafab_info { unsigned long sectors; /* total sector count */ @@ -80,7 +80,7 @@ static int datafab_determine_lun(struct us_data *us, { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id datafab_usb_ids[] = { +static const struct usb_device_id datafab_usb_ids[] = { # include "unusual_datafab.h" { } /* Terminating entry */ }; @@ -102,7 +102,7 @@ MODULE_DEVICE_TABLE(usb, datafab_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev datafab_unusual_dev_list[] = { +static const struct us_unusual_dev datafab_unusual_dev_list[] = { # include "unusual_datafab.h" { } /* Terminating entry */ }; @@ -319,7 +319,7 @@ static int datafab_determine_lun(struct us_data *us, // // There might be a better way of doing this? - static unsigned char scommand[8] = { 0, 1, 0, 0, 0, 0xa0, 0xec, 1 }; + static const unsigned char scommand[8] = { 0, 1, 0, 0, 0, 0xa0, 0xec, 1 }; unsigned char *command = us->iobuf; unsigned char *buf; int count = 0, rc; @@ -384,7 +384,7 @@ static int datafab_id_device(struct us_data *us, // to the ATA spec, 'Sector Count' isn't used but the Windows driver // sets this bit so we do too... // - static unsigned char scommand[8] = { 0, 1, 0, 0, 0, 0xa0, 0xec, 1 }; + static const unsigned char scommand[8] = { 0, 1, 0, 0, 0, 0xa0, 0xec, 1 }; unsigned char *command = us->iobuf; unsigned char *reply; int rc; @@ -437,16 +437,16 @@ static int datafab_handle_mode_sense(struct us_data *us, struct scsi_cmnd * srb, int sense_6) { - static unsigned char rw_err_page[12] = { + static const unsigned char rw_err_page[12] = { 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 }; - static unsigned char cache_page[12] = { + static const unsigned char cache_page[12] = { 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; - static unsigned char rbac_page[12] = { + static const unsigned char rbac_page[12] = { 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 }; - static unsigned char timer_page[8] = { + static const unsigned char timer_page[8] = { 0x1C, 0x6, 0, 0, 0, 0 }; unsigned char pc, page_code; @@ -550,7 +550,7 @@ static int datafab_transport(struct scsi_cmnd *srb, struct us_data *us) int rc; unsigned long block, blocks; unsigned char *ptr = us->iobuf; - static unsigned char inquiry_reply[8] = { + static const unsigned char inquiry_reply[8] = { 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 }; diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c index 576be66ad962..dda610f689b7 100644 --- a/drivers/usb/storage/debug.c +++ b/drivers/usb/storage/debug.c @@ -58,8 +58,8 @@ void usb_stor_show_command(const struct us_data *us, struct scsi_cmnd *srb) case INQUIRY: what = "INQUIRY"; break; case RECOVER_BUFFERED_DATA: what = "RECOVER_BUFFERED_DATA"; break; case MODE_SELECT: what = "MODE_SELECT"; break; - case RESERVE: what = "RESERVE"; break; - case RELEASE: what = "RELEASE"; break; + case RESERVE_6: what = "RESERVE"; break; + case RELEASE_6: what = "RELEASE"; break; case COPY: what = "COPY"; break; case ERASE: what = "ERASE"; break; case MODE_SENSE: what = "MODE_SENSE"; break; diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c index 97c66c0d91f4..ce91fb105975 100644 --- a/drivers/usb/storage/ene_ub6250.c +++ b/drivers/usb/storage/ene_ub6250.c @@ -26,7 +26,7 @@ MODULE_DESCRIPTION("Driver for ENE UB6250 reader"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); MODULE_FIRMWARE(SD_INIT1_FIRMWARE); MODULE_FIRMWARE(SD_INIT2_FIRMWARE); MODULE_FIRMWARE(SD_RW_FIRMWARE); @@ -43,7 +43,7 @@ MODULE_FIRMWARE(MS_RW_FIRMWARE); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)} -static struct usb_device_id ene_ub6250_usb_ids[] = { +static const struct usb_device_id ene_ub6250_usb_ids[] = { # include "unusual_ene_ub6250.h" { } /* Terminating entry */ }; @@ -65,7 +65,7 @@ MODULE_DEVICE_TABLE(usb, ene_ub6250_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev ene_ub6250_unusual_dev_list[] = { +static const struct us_unusual_dev ene_ub6250_unusual_dev_list[] = { # include "unusual_ene_ub6250.h" { } /* Terminating entry */ }; @@ -737,7 +737,7 @@ static int sd_scsi_write(struct us_data *us, struct scsi_cmnd *srb) memset(bcb, 0, sizeof(struct bulk_cb_wrap)); bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = blenByte; - bcb->Flags = 0x00; + bcb->Flags = US_BULK_FLAG_OUT; bcb->CDB[0] = 0xF0; bcb->CDB[5] = (unsigned char)(bnByte); bcb->CDB[4] = (unsigned char)(bnByte>>8); @@ -1163,7 +1163,7 @@ static int ms_read_copyblock(struct us_data *us, u16 oldphy, u16 newphy, memset(bcb, 0, sizeof(struct bulk_cb_wrap)); bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = 0x200*len; - bcb->Flags = 0x00; + bcb->Flags = US_BULK_FLAG_OUT; bcb->CDB[0] = 0xF0; bcb->CDB[1] = 0x08; bcb->CDB[4] = (unsigned char)(oldphy); @@ -1484,7 +1484,7 @@ static int ms_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb) static int ms_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb) { u32 bl_num; - u16 bl_len; + u32 bl_len; unsigned int offset = 0; unsigned char buf[8]; struct scatterlist *sg = NULL; @@ -1759,7 +1759,7 @@ static int ms_scsi_write(struct us_data *us, struct scsi_cmnd *srb) memset(bcb, 0, sizeof(struct bulk_cb_wrap)); bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = blenByte; - bcb->Flags = 0x00; + bcb->Flags = US_BULK_FLAG_OUT; bcb->CDB[0] = 0xF0; bcb->CDB[1] = 0x04; bcb->CDB[5] = (unsigned char)(bn); @@ -1931,7 +1931,7 @@ static int ene_load_bincode(struct us_data *us, unsigned char flag) memset(bcb, 0, sizeof(struct bulk_cb_wrap)); bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = sd_fw->size; - bcb->Flags = 0x00; + bcb->Flags = US_BULK_FLAG_OUT; bcb->CDB[0] = 0xEF; result = ene_send_scsi_cmd(us, FDIR_WRITE, buf, 0); diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c index c3ce51c2dabd..a075620907b4 100644 --- a/drivers/usb/storage/freecom.c +++ b/drivers/usb/storage/freecom.c @@ -29,7 +29,7 @@ MODULE_DESCRIPTION("Driver for Freecom USB/IDE adaptor"); MODULE_AUTHOR("David Brown <usb-storage@davidb.org>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); #ifdef CONFIG_USB_STORAGE_DEBUG static void pdump(struct us_data *us, void *ibuffer, int length); @@ -119,7 +119,7 @@ static int init_freecom(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id freecom_usb_ids[] = { +static const struct usb_device_id freecom_usb_ids[] = { # include "unusual_freecom.h" { } /* Terminating entry */ }; @@ -141,7 +141,7 @@ MODULE_DEVICE_TABLE(usb, freecom_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev freecom_unusual_dev_list[] = { +static const struct us_unusual_dev freecom_unusual_dev_list[] = { # include "unusual_freecom.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c index f8f9ce8dc710..b243bd5521a6 100644 --- a/drivers/usb/storage/initializers.c +++ b/drivers/usb/storage/initializers.c @@ -54,7 +54,7 @@ int usb_stor_ucr61s2b_init(struct us_data *us) struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap*) us->iobuf; int res; unsigned int partial; - static char init_string[] = "\xec\x0a\x06\x00$PCCHIPS"; + static const char init_string[] = "\xec\x0a\x06\x00$PCCHIPS"; usb_stor_dbg(us, "Sending UCR-61S2B initialization packet...\n"); diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index 300aeef160e7..a1669c35bad5 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -53,7 +53,7 @@ MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC"); MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); static int isd200_Initialization(struct us_data *us); @@ -67,7 +67,7 @@ static int isd200_Initialization(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id isd200_usb_ids[] = { +static const struct usb_device_id isd200_usb_ids[] = { # include "unusual_isd200.h" { } /* Terminating entry */ }; @@ -89,7 +89,7 @@ MODULE_DEVICE_TABLE(usb, isd200_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev isd200_unusual_dev_list[] = { +static const struct us_unusual_dev isd200_unusual_dev_list[] = { # include "unusual_isd200.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index 229bf0c1afc9..089c6f8ac85f 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -51,7 +51,7 @@ MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader"); MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); /* * The table of devices @@ -62,7 +62,7 @@ MODULE_IMPORT_NS(USB_STORAGE); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id jumpshot_usb_ids[] = { +static const struct usb_device_id jumpshot_usb_ids[] = { # include "unusual_jumpshot.h" { } /* Terminating entry */ }; @@ -84,7 +84,7 @@ MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev jumpshot_unusual_dev_list[] = { +static const struct us_unusual_dev jumpshot_unusual_dev_list[] = { # include "unusual_jumpshot.h" { } /* Terminating entry */ }; @@ -367,16 +367,16 @@ static int jumpshot_handle_mode_sense(struct us_data *us, struct scsi_cmnd * srb, int sense_6) { - static unsigned char rw_err_page[12] = { + static const unsigned char rw_err_page[12] = { 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 }; - static unsigned char cache_page[12] = { + static const unsigned char cache_page[12] = { 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; - static unsigned char rbac_page[12] = { + static const unsigned char rbac_page[12] = { 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 }; - static unsigned char timer_page[8] = { + static const unsigned char timer_page[8] = { 0x1C, 0x6, 0, 0, 0, 0 }; unsigned char pc, page_code; @@ -477,7 +477,7 @@ static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us) int rc; unsigned long block, blocks; unsigned char *ptr = us->iobuf; - static unsigned char inquiry_response[8] = { + static const unsigned char inquiry_response[8] = { 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 }; diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c index 38ddfedef629..341d6839548a 100644 --- a/drivers/usb/storage/karma.c +++ b/drivers/usb/storage/karma.c @@ -23,7 +23,7 @@ MODULE_DESCRIPTION("Driver for Rio Karma"); MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>, Keith Bennett <keith@mcs.st-and.ac.uk>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); #define RIO_PREFIX "RIOP\x00" #define RIO_PREFIX_LEN 5 @@ -51,7 +51,7 @@ static int rio_karma_init(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id karma_usb_ids[] = { +static const struct usb_device_id karma_usb_ids[] = { # include "unusual_karma.h" { } /* Terminating entry */ }; @@ -73,7 +73,7 @@ MODULE_DEVICE_TABLE(usb, karma_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev karma_unusual_dev_list[] = { +static const struct us_unusual_dev karma_unusual_dev_list[] = { # include "unusual_karma.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 01f3c2779ccf..5a8a1ffda0ec 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -25,7 +25,7 @@ MODULE_DESCRIPTION("Maxtor USB OneTouch hard drive button driver"); MODULE_AUTHOR("Nick Sillik <n.sillik@temple.edu>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); #define ONETOUCH_PKT_LEN 0x02 #define ONETOUCH_BUTTON KEY_PROG1 @@ -55,7 +55,7 @@ struct usb_onetouch { { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id onetouch_usb_ids[] = { +static const struct usb_device_id onetouch_usb_ids[] = { # include "unusual_onetouch.h" { } /* Terminating entry */ }; @@ -77,7 +77,7 @@ MODULE_DEVICE_TABLE(usb, onetouch_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev onetouch_unusual_dev_list[] = { +static const struct us_unusual_dev onetouch_unusual_dev_list[] = { # include "unusual_onetouch.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c index 0c423916d7bf..b387863c245f 100644 --- a/drivers/usb/storage/realtek_cr.c +++ b/drivers/usb/storage/realtek_cr.c @@ -35,7 +35,7 @@ MODULE_DESCRIPTION("Driver for Realtek USB Card Reader"); MODULE_AUTHOR("wwang <wei_wang@realsil.com.cn>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); static int auto_delink_en = 1; module_param(auto_delink_en, int, S_IRUGO | S_IWUSR); @@ -191,7 +191,7 @@ MODULE_DEVICE_TABLE(usb, realtek_cr_ids); .initFunction = init_function, \ } -static struct us_unusual_dev realtek_cr_unusual_dev_list[] = { +static const struct us_unusual_dev realtek_cr_unusual_dev_list[] = { # include "unusual_realtek.h" {} /* Terminating entry */ }; @@ -212,7 +212,7 @@ static int rts51x_bulk_transport(struct us_data *us, u8 lun, /* set up the command wrapper */ bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = cpu_to_le32(buf_len); - bcb->Flags = (dir == DMA_FROM_DEVICE) ? US_BULK_FLAG_IN : 0; + bcb->Flags = (dir == DMA_FROM_DEVICE) ? US_BULK_FLAG_IN : US_BULK_FLAG_OUT; bcb->Tag = ++us->tag; bcb->Lun = lun; bcb->Length = cmd_len; @@ -301,7 +301,7 @@ static int rts51x_bulk_transport_special(struct us_data *us, u8 lun, /* set up the command wrapper */ bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = cpu_to_le32(buf_len); - bcb->Flags = (dir == DMA_FROM_DEVICE) ? US_BULK_FLAG_IN : 0; + bcb->Flags = (dir == DMA_FROM_DEVICE) ? US_BULK_FLAG_IN : US_BULK_FLAG_OUT; bcb->Tag = ++us->tag; bcb->Lun = lun; bcb->Length = cmd_len; @@ -797,10 +797,10 @@ static void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) { struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra); static int card_first_show = 1; - static u8 media_not_present[] = { 0x70, 0, 0x02, 0, 0, 0, 0, + static const u8 media_not_present[] = { 0x70, 0, 0x02, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0x3A, 0, 0, 0, 0, 0 }; - static u8 invalid_cmd_field[] = { 0x70, 0, 0x05, 0, 0, 0, 0, + static const u8 invalid_cmd_field[] = { 0x70, 0, 0x05, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0x24, 0, 0, 0, 0, 0 }; int ret; @@ -934,7 +934,7 @@ static void realtek_cr_destructor(void *extra) #ifdef CONFIG_REALTEK_AUTOPM if (ss_en) { - del_timer(&chip->rts51x_suspend_timer); + timer_delete(&chip->rts51x_suspend_timer); chip->timer_expires = 0; } #endif diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 12cf9940e5b6..d2f476e48d0c 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -40,7 +40,6 @@ #include <scsi/scsi_eh.h> #include "usb.h" -#include <linux/usb/hcd.h> #include "scsiglue.h" #include "debug.h" #include "transport.h" @@ -65,7 +64,7 @@ static const char* host_info(struct Scsi_Host *host) return us->scsi_name; } -static int slave_alloc (struct scsi_device *sdev) +static int sdev_init (struct scsi_device *sdev) { struct us_data *us = host_to_us(sdev->host); @@ -76,20 +75,20 @@ static int slave_alloc (struct scsi_device *sdev) */ sdev->inquiry_len = 36; - /* - * Some host controllers may have alignment requirements. - * We'll play it safe by requiring 512-byte alignment always. - */ - blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1)); - /* Tell the SCSI layer if we know there is more than one LUN */ if (us->protocol == USB_PR_BULK && us->max_lun > 0) sdev->sdev_bflags |= BLIST_FORCELUN; + /* + * Some USB storage devices reset if the IO advice hints grouping mode + * page is queried. Hence skip that mode page. + */ + sdev->sdev_bflags |= BLIST_SKIP_IO_HINTS; + return 0; } -static int slave_configure(struct scsi_device *sdev) +static int sdev_configure(struct scsi_device *sdev, struct queue_limits *lim) { struct us_data *us = host_to_us(sdev->host); struct device *dev = us->pusb_dev->bus->sysdev; @@ -104,43 +103,31 @@ static int slave_configure(struct scsi_device *sdev) if (us->fflags & US_FL_MAX_SECTORS_MIN) max_sectors = PAGE_SIZE >> 9; - if (queue_max_hw_sectors(sdev->request_queue) > max_sectors) - blk_queue_max_hw_sectors(sdev->request_queue, - max_sectors); + lim->max_hw_sectors = min(lim->max_hw_sectors, max_sectors); } else if (sdev->type == TYPE_TAPE) { /* * Tapes need much higher max_sector limits, so just * raise it to the maximum possible (4 GB / 512) and * let the queue segment size sort out the real limit. */ - blk_queue_max_hw_sectors(sdev->request_queue, 0x7FFFFF); + lim->max_hw_sectors = 0x7FFFFF; } else if (us->pusb_dev->speed >= USB_SPEED_SUPER) { /* * USB3 devices will be limited to 2048 sectors. This gives us * better throughput on most devices. */ - blk_queue_max_hw_sectors(sdev->request_queue, 2048); + lim->max_hw_sectors = 2048; } /* * The max_hw_sectors should be up to maximum size of a mapping for * the device. Otherwise, a DMA API might fail on swiotlb environment. */ - blk_queue_max_hw_sectors(sdev->request_queue, - min_t(size_t, queue_max_hw_sectors(sdev->request_queue), - dma_max_mapping_size(dev) >> SECTOR_SHIFT)); + lim->max_hw_sectors = min_t(size_t, + lim->max_hw_sectors, dma_max_mapping_size(dev) >> SECTOR_SHIFT); /* - * Some USB host controllers can't do DMA; they have to use PIO. - * For such controllers we need to make sure the block layer sets - * up bounce buffers in addressable memory. - */ - if (!hcd_uses_dma(bus_to_hcd(us->pusb_dev->bus)) || - (bus_to_hcd(us->pusb_dev->bus)->localmem_pool != NULL)) - blk_queue_bounce_limit(sdev->request_queue, BLK_BOUNCE_HIGH); - - /* - * We can't put these settings in slave_alloc() because that gets + * We can't put these settings in sdev_init() because that gets * called before the device type is known. Consequently these * settings can't be overridden via the scsi devinfo mechanism. */ @@ -598,13 +585,19 @@ static ssize_t max_sectors_store(struct device *dev, struct device_attribute *at size_t count) { struct scsi_device *sdev = to_scsi_device(dev); + struct queue_limits lim; unsigned short ms; + int ret; - if (sscanf(buf, "%hu", &ms) > 0) { - blk_queue_max_hw_sectors(sdev->request_queue, ms); - return count; - } - return -EINVAL; + if (sscanf(buf, "%hu", &ms) <= 0) + return -EINVAL; + + lim = queue_limits_start_update(sdev->request_queue); + lim.max_hw_sectors = ms; + ret = queue_limits_commit_update_frozen(sdev->request_queue, &lim); + if (ret) + return ret; + return count; } static DEVICE_ATTR_RW(max_sectors); @@ -641,13 +634,18 @@ static const struct scsi_host_template usb_stor_host_template = { /* unknown initiator id */ .this_id = -1, - .slave_alloc = slave_alloc, - .slave_configure = slave_configure, + .sdev_init = sdev_init, + .sdev_configure = sdev_configure, .target_alloc = target_alloc, /* lots of sg segments can be handled */ .sg_tablesize = SG_MAX_SEGMENTS, + /* + * Some host controllers may have alignment requirements. + * We'll play it safe by requiring 512-byte alignment always. + */ + .dma_alignment = 511, /* * Limit the total size of a transfer to 120 KB. diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c index 51bcd4a43690..e66b920e99e2 100644 --- a/drivers/usb/storage/sddr09.c +++ b/drivers/usb/storage/sddr09.c @@ -47,7 +47,7 @@ MODULE_DESCRIPTION("Driver for SanDisk SDDR-09 SmartMedia reader"); MODULE_AUTHOR("Andries Brouwer <aeb@cwi.nl>, Robert Baruch <autophile@starband.net>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); static int usb_stor_sddr09_dpcm_init(struct us_data *us); static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us); @@ -63,7 +63,7 @@ static int usb_stor_sddr09_init(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id sddr09_usb_ids[] = { +static const struct usb_device_id sddr09_usb_ids[] = { # include "unusual_sddr09.h" { } /* Terminating entry */ }; @@ -85,7 +85,7 @@ MODULE_DEVICE_TABLE(usb, sddr09_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev sddr09_unusual_dev_list[] = { +static const struct us_unusual_dev sddr09_unusual_dev_list[] = { # include "unusual_sddr09.h" { } /* Terminating entry */ }; @@ -144,7 +144,7 @@ static inline char *nand_flash_manufacturer(int manuf_id) { * 256 MB NAND flash has a 5-byte ID with 2nd byte 0xaa, 0xba, 0xca or 0xda. */ -static struct nand_flash_dev nand_flash_ids[] = { +static const struct nand_flash_dev nand_flash_ids[] = { /* NAND flash */ { 0x6e, 20, 8, 4, 8, 2}, /* 1 MB */ { 0xe8, 20, 8, 4, 8, 2}, /* 1 MB */ @@ -169,7 +169,7 @@ static struct nand_flash_dev nand_flash_ids[] = { { 0,} }; -static struct nand_flash_dev * +static const struct nand_flash_dev * nand_find_id(unsigned char id) { int i; @@ -752,7 +752,7 @@ sddr09_read_data(struct us_data *us, // a bounce buffer and move the data a piece at a time between the // bounce buffer and the actual transfer buffer. - len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; + len = min_t(unsigned int, sectors, info->blocksize) * info->pagesize; buffer = kmalloc(len, GFP_NOIO); if (!buffer) return -ENOMEM; @@ -997,7 +997,7 @@ sddr09_write_data(struct us_data *us, * at a time between the bounce buffer and the actual transfer buffer. */ - len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; + len = min_t(unsigned int, sectors, info->blocksize) * info->pagesize; buffer = kmalloc(len, GFP_NOIO); if (!buffer) { kfree(blockbuffer); @@ -1133,9 +1133,9 @@ sddr09_reset(struct us_data *us) { } #endif -static struct nand_flash_dev * +static const struct nand_flash_dev * sddr09_get_cardinfo(struct us_data *us, unsigned char flags) { - struct nand_flash_dev *cardinfo; + const struct nand_flash_dev *cardinfo; unsigned char deviceID[4]; char blurbtxt[256]; int result; @@ -1545,12 +1545,12 @@ static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us) struct sddr09_card_info *info; - static unsigned char inquiry_response[8] = { + static const unsigned char inquiry_response[8] = { 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 }; /* note: no block descriptor support */ - static unsigned char mode_page_01[19] = { + static const unsigned char mode_page_01[19] = { 0x00, 0x0F, 0x00, 0x0, 0x0, 0x0, 0x00, 0x01, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 @@ -1584,7 +1584,7 @@ static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us) } if (srb->cmnd[0] == READ_CAPACITY) { - struct nand_flash_dev *cardinfo; + const struct nand_flash_dev *cardinfo; sddr09_get_wp(us, info); /* read WP bit */ diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c index 0aa079405d23..b323f0a36260 100644 --- a/drivers/usb/storage/sddr55.c +++ b/drivers/usb/storage/sddr55.c @@ -29,7 +29,7 @@ MODULE_DESCRIPTION("Driver for SanDisk SDDR-55 SmartMedia reader"); MODULE_AUTHOR("Simon Munton"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); /* * The table of devices @@ -40,7 +40,7 @@ MODULE_IMPORT_NS(USB_STORAGE); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id sddr55_usb_ids[] = { +static const struct usb_device_id sddr55_usb_ids[] = { # include "unusual_sddr55.h" { } /* Terminating entry */ }; @@ -62,7 +62,7 @@ MODULE_DEVICE_TABLE(usb, sddr55_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev sddr55_unusual_dev_list[] = { +static const struct us_unusual_dev sddr55_unusual_dev_list[] = { # include "unusual_sddr55.h" { } /* Terminating entry */ }; @@ -206,7 +206,7 @@ static int sddr55_read_data(struct us_data *us, // a bounce buffer and move the data a piece at a time between the // bounce buffer and the actual transfer buffer. - len = min((unsigned int) sectors, (unsigned int) info->blocksize >> + len = min_t(unsigned int, sectors, info->blocksize >> info->smallpageshift) * PAGESIZE; buffer = kmalloc(len, GFP_NOIO); if (buffer == NULL) @@ -224,7 +224,7 @@ static int sddr55_read_data(struct us_data *us, // Read as many sectors as possible in this block - pages = min((unsigned int) sectors << info->smallpageshift, + pages = min_t(unsigned int, sectors << info->smallpageshift, info->blocksize - page); len = pages << info->pageshift; @@ -333,7 +333,7 @@ static int sddr55_write_data(struct us_data *us, // a bounce buffer and move the data a piece at a time between the // bounce buffer and the actual transfer buffer. - len = min((unsigned int) sectors, (unsigned int) info->blocksize >> + len = min_t(unsigned int, sectors, info->blocksize >> info->smallpageshift) * PAGESIZE; buffer = kmalloc(len, GFP_NOIO); if (buffer == NULL) @@ -351,7 +351,7 @@ static int sddr55_write_data(struct us_data *us, // Write as many sectors as possible in this block - pages = min((unsigned int) sectors << info->smallpageshift, + pages = min_t(unsigned int, sectors << info->smallpageshift, info->blocksize - page); len = pages << info->pageshift; @@ -775,11 +775,11 @@ static void sddr55_card_info_destructor(void *extra) { static int sddr55_transport(struct scsi_cmnd *srb, struct us_data *us) { int result; - static unsigned char inquiry_response[8] = { + static const unsigned char inquiry_response[8] = { 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 }; // write-protected for now, no block descriptor support - static unsigned char mode_page_01[20] = { + static const unsigned char mode_page_01[20] = { 0x0, 0x12, 0x00, 0x80, 0x0, 0x0, 0x0, 0x0, 0x01, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c index f0d0ca37163d..27faa0ead11d 100644 --- a/drivers/usb/storage/shuttle_usbat.c +++ b/drivers/usb/storage/shuttle_usbat.c @@ -32,6 +32,7 @@ #include <linux/errno.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/cdrom.h> #include <scsi/scsi.h> @@ -48,7 +49,7 @@ MODULE_DESCRIPTION("Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable"); MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>, Robert Baruch <autophile@starband.net>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); /* Supported device types */ #define USBAT_DEV_HP8200 0x01 @@ -162,7 +163,7 @@ static int init_usbat_flash(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id usbat_usb_ids[] = { +static const struct usb_device_id usbat_usb_ids[] = { # include "unusual_usbat.h" { } /* Terminating entry */ }; @@ -184,7 +185,7 @@ MODULE_DEVICE_TABLE(usb, usbat_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev usbat_unusual_dev_list[] = { +static const struct us_unusual_dev usbat_unusual_dev_list[] = { # include "unusual_usbat.h" { } /* Terminating entry */ }; @@ -651,8 +652,7 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us, return USB_STOR_TRANSPORT_FAILED; usb_stor_dbg(us, "Redoing %s\n", - direction == DMA_TO_DEVICE - ? "write" : "read"); + str_write_read(direction == DMA_TO_DEVICE)); } else if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; @@ -1683,7 +1683,7 @@ static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) struct usbat_info *info = (struct usbat_info *) (us->extra); unsigned long block, blocks; unsigned char *ptr = us->iobuf; - static unsigned char inquiry_response[36] = { + static const unsigned char inquiry_response[36] = { 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 }; diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 7449e379077a..1aa1bd26c81f 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -528,7 +528,7 @@ static void last_sector_hacks(struct us_data *us, struct scsi_cmnd *srb) u32 sector; /* To Report "Medium Error: Record Not Found */ - static unsigned char record_not_found[18] = { + static const unsigned char record_not_found[18] = { [0] = 0x70, /* current error */ [2] = MEDIUM_ERROR, /* = 0x03 */ [7] = 0x0a, /* additional length */ @@ -1087,13 +1087,9 @@ int usb_stor_Bulk_max_lun(struct us_data *us) usb_stor_dbg(us, "GetMaxLUN command result is %d, data is %d\n", result, us->iobuf[0]); - /* - * If we have a successful request, return the result if valid. The - * CBW LUN field is 4 bits wide, so the value reported by the device - * should fit into that. - */ + /* If we have a successful request, return the result if valid. */ if (result > 0) { - if (us->iobuf[0] < 16) { + if (us->iobuf[0] <= US_BULK_MAX_LUN_LIMIT) { return us->iobuf[0]; } else { dev_info(&us->pusb_intf->dev, @@ -1133,7 +1129,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = cpu_to_le32(transfer_length); bcb->Flags = srb->sc_data_direction == DMA_FROM_DEVICE ? - US_BULK_FLAG_IN : 0; + US_BULK_FLAG_IN : US_BULK_FLAG_OUT; bcb->Tag = ++us->tag; bcb->Lun = srb->device->lun; if (us->fflags & US_FL_SCM_MULT_TARG) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 08953f0d4532..4ed0dc19afe0 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -21,6 +21,7 @@ #include <scsi/scsi.h> #include <scsi/scsi_eh.h> #include <scsi/scsi_dbg.h> +#include <scsi/scsi_devinfo.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> @@ -422,6 +423,7 @@ static void uas_data_cmplt(struct urb *urb) uas_log_cmd_state(cmnd, "data cmplt err", status); /* error: no data transfered */ scsi_set_resid(cmnd, sdb->length); + set_host_byte(cmnd, DID_ERROR); } else { scsi_set_resid(cmnd, sdb->length - urb->actual_length); } @@ -815,32 +817,31 @@ static int uas_target_alloc(struct scsi_target *starget) return 0; } -static int uas_slave_alloc(struct scsi_device *sdev) +static int uas_sdev_init(struct scsi_device *sdev) { struct uas_dev_info *devinfo = (struct uas_dev_info *)sdev->host->hostdata; - sdev->hostdata = devinfo; - /* - * The protocol has no requirements on alignment in the strict sense. - * Controllers may or may not have alignment restrictions. - * As this is not exported, we use an extremely conservative guess. + * Some USB storage devices reset if the IO advice hints grouping mode + * page is queried. Hence skip that mode page. */ - blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1)); - - if (devinfo->flags & US_FL_MAX_SECTORS_64) - blk_queue_max_hw_sectors(sdev->request_queue, 64); - else if (devinfo->flags & US_FL_MAX_SECTORS_240) - blk_queue_max_hw_sectors(sdev->request_queue, 240); + sdev->sdev_bflags |= BLIST_SKIP_IO_HINTS; + sdev->hostdata = devinfo; return 0; } -static int uas_slave_configure(struct scsi_device *sdev) +static int uas_sdev_configure(struct scsi_device *sdev, + struct queue_limits *lim) { struct uas_dev_info *devinfo = sdev->hostdata; + if (devinfo->flags & US_FL_MAX_SECTORS_64) + lim->max_hw_sectors = 64; + else if (devinfo->flags & US_FL_MAX_SECTORS_240) + lim->max_hw_sectors = 240; + if (devinfo->flags & US_FL_NO_REPORT_OPCODES) sdev->no_report_opcodes = 1; @@ -904,12 +905,18 @@ static const struct scsi_host_template uas_host_template = { .name = "uas", .queuecommand = uas_queuecommand, .target_alloc = uas_target_alloc, - .slave_alloc = uas_slave_alloc, - .slave_configure = uas_slave_configure, + .sdev_init = uas_sdev_init, + .sdev_configure = uas_sdev_configure, .eh_abort_handler = uas_eh_abort_handler, .eh_device_reset_handler = uas_eh_device_reset_handler, .this_id = -1, .skip_settle_delay = 1, + /* + * The protocol has no requirements on alignment in the strict sense. + * Controllers may or may not have alignment restrictions. + * As this is not exported, we use an extremely conservative guess. + */ + .dma_alignment = 511, .dma_boundary = PAGE_SIZE - 1, .cmd_size = sizeof(struct uas_cmd_info), }; @@ -920,7 +927,7 @@ static const struct scsi_host_template uas_host_template = { { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id uas_usb_ids[] = { +static const struct usb_device_id uas_usb_ids[] = { # include "unusual_uas.h" { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_BULK) }, { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_UAS) }, @@ -1226,9 +1233,8 @@ static void uas_disconnect(struct usb_interface *intf) * hang on reboot when the device is still in uas mode. Note the reset is * necessary as some devices won't revert to usb-storage mode without it. */ -static void uas_shutdown(struct device *dev) +static void uas_shutdown(struct usb_interface *intf) { - struct usb_interface *intf = to_usb_interface(dev); struct usb_device *udev = interface_to_usbdev(intf); struct Scsi_Host *shost = usb_get_intfdata(intf); struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata; @@ -1251,7 +1257,7 @@ static struct usb_driver uas_driver = { .suspend = uas_suspend, .resume = uas_resume, .reset_resume = uas_reset_resume, - .driver.shutdown = uas_shutdown, + .shutdown = uas_shutdown, .id_table = uas_usb_ids, }; @@ -1281,7 +1287,8 @@ static void __exit uas_exit(void) module_init(uas_init); module_exit(uas_exit); +MODULE_DESCRIPTION("USB Attached SCSI driver"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); MODULE_AUTHOR( "Hans de Goede <hdegoede@redhat.com>, Matthew Wilcox and Sarah Sharp"); diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index fd68204374f2..54f0b1c83317 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -255,6 +255,13 @@ UNUSUAL_DEV( 0x0421, 0x06aa, 0x1110, 0x1110, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_MAX_SECTORS_64 ), +/* Added by Lubomir Rintel <lkundrak@v3.sk>, a very fine chap */ +UNUSUAL_DEV( 0x0421, 0x06c2, 0x0000, 0x0406, + "Nokia", + "Nokia 208", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_MAX_SECTORS_64 ), + #ifdef NO_SDDR09 UNUSUAL_DEV( 0x0436, 0x0005, 0x0100, 0x0100, "Microtech", @@ -2423,6 +2430,17 @@ UNUSUAL_DEV( 0xc251, 0x4003, 0x0100, 0x0100, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE), +/* + * Reported by Icenowy Zheng <uwu@icenowy.me> + * This is an interface for vendor-specific cryptic commands instead + * of real USB storage device. + */ +UNUSUAL_DEV( 0xe5b7, 0x0811, 0x0100, 0x0100, + "ZhuHai JieLi Technology", + "JieLi BR21", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_IGNORE_DEVICE), + /* Reported by Andrew Simmons <andrew.simmons@gmail.com> */ UNUSUAL_DEV( 0xed06, 0x4500, 0x0001, 0x0001, "DataStor", diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h index 1f8c9b16a0fb..d460d71b4257 100644 --- a/drivers/usb/storage/unusual_uas.h +++ b/drivers/usb/storage/unusual_uas.h @@ -83,6 +83,13 @@ UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_REPORT_LUNS), +/* Reported-by: Oliver Neukum <oneukum@suse.com> */ +UNUSUAL_DEV(0x125f, 0xa94a, 0x0160, 0x0160, + "ADATA", + "Portable HDD CH94", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_ATA_1X), + /* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */ UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999, "Initio Corporation", diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index d1ad6a2509ab..152ee3376550 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -47,6 +47,7 @@ #include <scsi/scsi_device.h> #include "usb.h" +#include <linux/usb/hcd.h> #include "scsiglue.h" #include "transport.h" #include "protocol.h" @@ -67,9 +68,102 @@ MODULE_AUTHOR("Matthew Dharm <mdharm-usb@one-eyed-alien.net>"); MODULE_DESCRIPTION("USB Mass Storage driver for Linux"); MODULE_LICENSE("GPL"); -static unsigned int delay_use = 1; -module_param(delay_use, uint, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(delay_use, "seconds to delay before using a new device"); +static unsigned int delay_use = 1 * MSEC_PER_SEC; + +/** + * parse_delay_str - parse an unsigned decimal integer delay + * @str: String to parse. + * @ndecimals: Number of decimal to scale up. + * @suffix: Suffix string to parse. + * @val: Where to store the parsed value. + * + * Parse an unsigned decimal value in @str, optionally end with @suffix. + * Stores the parsed value in @val just as it is if @str ends with @suffix. + * Otherwise store the value scale up by 10^(@ndecimal). + * + * Returns 0 on success, a negative error code otherwise. + */ +static int parse_delay_str(const char *str, int ndecimals, const char *suffix, + unsigned int *val) +{ + int n, n2, l; + char buf[16]; + + l = strlen(suffix); + n = strlen(str); + if (n > 0 && str[n - 1] == '\n') + --n; + if (n >= l && !strncmp(&str[n - l], suffix, l)) { + n -= l; + n2 = 0; + } else + n2 = ndecimals; + + if (n + n2 > sizeof(buf) - 1) + return -EINVAL; + + memcpy(buf, str, n); + while (n2-- > 0) + buf[n++] = '0'; + buf[n] = 0; + + return kstrtouint(buf, 10, val); +} + +/** + * format_delay_ms - format an integer value into a delay string + * @val: The integer value to format, scaled by 10^(@ndecimals). + * @ndecimals: Number of decimal to scale down. + * @suffix: Suffix string to format. + * @str: Where to store the formatted string. + * @size: The size of buffer for @str. + * + * Format an integer value in @val scale down by 10^(@ndecimals) without @suffix + * if @val is divisible by 10^(@ndecimals). + * Otherwise format a value in @val just as it is with @suffix + * + * Returns the number of characters written into @str. + */ +static int format_delay_ms(unsigned int val, int ndecimals, const char *suffix, + char *str, int size) +{ + u64 delay_ms = val; + unsigned int rem = do_div(delay_ms, int_pow(10, ndecimals)); + int ret; + + if (rem) + ret = scnprintf(str, size, "%u%s\n", val, suffix); + else + ret = scnprintf(str, size, "%u\n", (unsigned int)delay_ms); + return ret; +} + +static int delay_use_set(const char *s, const struct kernel_param *kp) +{ + unsigned int delay_ms; + int ret; + + ret = parse_delay_str(skip_spaces(s), 3, "ms", &delay_ms); + if (ret < 0) + return ret; + + *((unsigned int *)kp->arg) = delay_ms; + return 0; +} + +static int delay_use_get(char *s, const struct kernel_param *kp) +{ + unsigned int delay_ms = *((unsigned int *)kp->arg); + + return format_delay_ms(delay_ms, 3, "ms", s, PAGE_SIZE); +} + +static const struct kernel_param_ops delay_use_ops = { + .set = delay_use_set, + .get = delay_use_get, +}; +module_param_cb(delay_use, &delay_use_ops, &delay_use, 0644); +MODULE_PARM_DESC(delay_use, "time to delay before using a new device"); static char quirks[128]; module_param_string(quirks, quirks, sizeof(quirks), S_IRUGO | S_IWUSR); @@ -961,6 +1055,22 @@ int usb_stor_probe1(struct us_data **pus, if (result) goto BadDevice; + /* + * Some USB host controllers can't do DMA: They have to use PIO, or they + * have to use a small dedicated local memory area, or they have other + * restrictions on addressable memory. + * + * We can't support these controllers on highmem systems as we don't + * kmap or bounce buffer. + */ + if (IS_ENABLED(CONFIG_HIGHMEM) && + (!hcd_uses_dma(bus_to_hcd(us->pusb_dev->bus)) || + bus_to_hcd(us->pusb_dev->bus)->localmem_pool)) { + dev_warn(&intf->dev, "USB Mass Storage not supported on this host controller\n"); + result = -EINVAL; + goto release; + } + /* Get the unusual_devs entries and the descriptors */ result = get_device_info(us, id, unusual_dev); if (result) @@ -978,6 +1088,7 @@ int usb_stor_probe1(struct us_data **pus, BadDevice: usb_stor_dbg(us, "storage_probe() failed\n"); +release: release_everything(us); return result; } @@ -1054,7 +1165,7 @@ int usb_stor_probe2(struct us_data *us) if (delay_use > 0) dev_dbg(dev, "waiting for device to settle before scanning\n"); queue_delayed_work(system_freezable_wq, &us->scan_dwork, - delay_use * HZ); + msecs_to_jiffies(delay_use)); return 0; /* We come here if there are any problems */ diff --git a/drivers/usb/typec/altmodes/Kconfig b/drivers/usb/typec/altmodes/Kconfig index 1a6b5e872b0d..7867fa7c405d 100644 --- a/drivers/usb/typec/altmodes/Kconfig +++ b/drivers/usb/typec/altmodes/Kconfig @@ -23,4 +23,13 @@ config TYPEC_NVIDIA_ALTMODE To compile this driver as a module, choose M here: the module will be called typec_nvidia. +config TYPEC_TBT_ALTMODE + tristate "Thunderbolt3 Alternate Mode driver" + help + Select this option if you have Thunderbolt3 hardware on your + system. + + To compile this driver as a module, choose M here: the + module will be called typec_thunderbolt. + endmenu diff --git a/drivers/usb/typec/altmodes/Makefile b/drivers/usb/typec/altmodes/Makefile index 45717548b396..508a68351bd2 100644 --- a/drivers/usb/typec/altmodes/Makefile +++ b/drivers/usb/typec/altmodes/Makefile @@ -4,3 +4,5 @@ obj-$(CONFIG_TYPEC_DP_ALTMODE) += typec_displayport.o typec_displayport-y := displayport.o obj-$(CONFIG_TYPEC_NVIDIA_ALTMODE) += typec_nvidia.o typec_nvidia-y := nvidia.o +obj-$(CONFIG_TYPEC_TBT_ALTMODE) += typec_thunderbolt.o +typec_thunderbolt-y := thunderbolt.o diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c index 038dc51f429d..ac84a6d64c2f 100644 --- a/drivers/usb/typec/altmodes/displayport.c +++ b/drivers/usb/typec/altmodes/displayport.c @@ -252,7 +252,7 @@ static void dp_altmode_work(struct work_struct *work) case DP_STATE_ENTER: ret = typec_altmode_enter(dp->alt, NULL); if (ret && ret != -EBUSY) - dev_err(&dp->alt->dev, "failed to enter mode\n"); + dev_err(&dp->alt->dev, "failed to enter mode: %d\n", ret); break; case DP_STATE_ENTER_PRIME: ret = typec_cable_altmode_enter(dp->alt, TYPEC_PLUG_SOP_P, NULL); @@ -729,7 +729,7 @@ int dp_altmode_probe(struct typec_altmode *alt) /* FIXME: Port can only be DFP_U. */ - /* Make sure we have compatiple pin configurations */ + /* Make sure we have compatible pin configurations */ if (!(DP_CAP_PIN_ASSIGN_DFP_D(port->vdo) & DP_CAP_PIN_ASSIGN_UFP_D(alt->vdo)) && !(DP_CAP_PIN_ASSIGN_UFP_D(port->vdo) & @@ -746,7 +746,7 @@ int dp_altmode_probe(struct typec_altmode *alt) dp->alt = alt; alt->desc = "DisplayPort"; - alt->ops = &dp_altmode_ops; + typec_altmode_set_ops(alt, &dp_altmode_ops); if (plug) { plug->desc = "Displayport"; @@ -791,7 +791,7 @@ void dp_altmode_remove(struct typec_altmode *alt) EXPORT_SYMBOL_GPL(dp_altmode_remove); static const struct typec_device_id dp_typec_id[] = { - { USB_TYPEC_DP_SID, USB_TYPEC_DP_MODE }, + { USB_TYPEC_DP_SID }, { }, }; MODULE_DEVICE_TABLE(typec, dp_typec_id); @@ -802,7 +802,6 @@ static struct typec_altmode_driver dp_altmode_driver = { .remove = dp_altmode_remove, .driver = { .name = "typec_displayport", - .owner = THIS_MODULE, .dev_groups = displayport_groups, }, }; diff --git a/drivers/usb/typec/altmodes/nvidia.c b/drivers/usb/typec/altmodes/nvidia.c index c36769736405..2b77d931e494 100644 --- a/drivers/usb/typec/altmodes/nvidia.c +++ b/drivers/usb/typec/altmodes/nvidia.c @@ -24,7 +24,7 @@ static void nvidia_altmode_remove(struct typec_altmode *alt) } static const struct typec_device_id nvidia_typec_id[] = { - { USB_TYPEC_NVIDIA_VLINK_SID, TYPEC_ANY_MODE }, + { USB_TYPEC_NVIDIA_VLINK_SID }, { }, }; MODULE_DEVICE_TABLE(typec, nvidia_typec_id); @@ -35,7 +35,6 @@ static struct typec_altmode_driver nvidia_altmode_driver = { .remove = nvidia_altmode_remove, .driver = { .name = "typec_nvidia", - .owner = THIS_MODULE, }, }; module_typec_altmode_driver(nvidia_altmode_driver); diff --git a/drivers/usb/typec/altmodes/thunderbolt.c b/drivers/usb/typec/altmodes/thunderbolt.c new file mode 100644 index 000000000000..6eadf7835f8f --- /dev/null +++ b/drivers/usb/typec/altmodes/thunderbolt.c @@ -0,0 +1,388 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * USB Typec-C Thunderbolt3 Alternate Mode driver + * + * Copyright (C) 2019 Intel Corporation + * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com> + */ + +#include <linux/lockdep.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/workqueue.h> +#include <linux/usb/pd_vdo.h> +#include <linux/usb/typec_altmode.h> +#include <linux/usb/typec_tbt.h> + +enum tbt_state { + TBT_STATE_IDLE, + TBT_STATE_SOP_P_ENTER, + TBT_STATE_SOP_PP_ENTER, + TBT_STATE_ENTER, + TBT_STATE_EXIT, + TBT_STATE_SOP_PP_EXIT, + TBT_STATE_SOP_P_EXIT +}; + +struct tbt_altmode { + enum tbt_state state; + struct typec_cable *cable; + struct typec_altmode *alt; + struct typec_altmode *plug[2]; + u32 enter_vdo; + + struct work_struct work; + struct mutex lock; /* device lock */ +}; + +static bool tbt_ready(struct typec_altmode *alt); + +static int tbt_enter_mode(struct tbt_altmode *tbt) +{ + struct typec_altmode *plug = tbt->plug[TYPEC_PLUG_SOP_P]; + u32 vdo; + + vdo = tbt->alt->vdo & (TBT_VENDOR_SPECIFIC_B0 | TBT_VENDOR_SPECIFIC_B1); + vdo |= tbt->alt->vdo & TBT_INTEL_SPECIFIC_B0; + vdo |= TBT_MODE; + + if (plug) { + if (typec_cable_is_active(tbt->cable)) + vdo |= TBT_ENTER_MODE_ACTIVE_CABLE; + + vdo |= TBT_ENTER_MODE_CABLE_SPEED(TBT_CABLE_SPEED(plug->vdo)); + vdo |= plug->vdo & TBT_CABLE_ROUNDED; + vdo |= plug->vdo & TBT_CABLE_OPTICAL; + vdo |= plug->vdo & TBT_CABLE_RETIMER; + vdo |= plug->vdo & TBT_CABLE_LINK_TRAINING; + } else { + vdo |= TBT_ENTER_MODE_CABLE_SPEED(TBT_CABLE_USB3_PASSIVE); + } + + tbt->enter_vdo = vdo; + return typec_altmode_enter(tbt->alt, &vdo); +} + +static void tbt_altmode_work(struct work_struct *work) +{ + struct tbt_altmode *tbt = container_of(work, struct tbt_altmode, work); + int ret; + + mutex_lock(&tbt->lock); + + switch (tbt->state) { + case TBT_STATE_SOP_P_ENTER: + ret = typec_cable_altmode_enter(tbt->alt, TYPEC_PLUG_SOP_P, NULL); + if (ret) { + dev_dbg(&tbt->plug[TYPEC_PLUG_SOP_P]->dev, + "failed to enter mode (%d)\n", ret); + goto disable_plugs; + } + break; + case TBT_STATE_SOP_PP_ENTER: + ret = typec_cable_altmode_enter(tbt->alt, TYPEC_PLUG_SOP_PP, NULL); + if (ret) { + dev_dbg(&tbt->plug[TYPEC_PLUG_SOP_PP]->dev, + "failed to enter mode (%d)\n", ret); + goto disable_plugs; + } + break; + case TBT_STATE_ENTER: + ret = tbt_enter_mode(tbt); + if (ret) + dev_dbg(&tbt->alt->dev, "failed to enter mode (%d)\n", + ret); + break; + case TBT_STATE_EXIT: + typec_altmode_exit(tbt->alt); + break; + case TBT_STATE_SOP_PP_EXIT: + typec_cable_altmode_exit(tbt->alt, TYPEC_PLUG_SOP_PP); + break; + case TBT_STATE_SOP_P_EXIT: + typec_cable_altmode_exit(tbt->alt, TYPEC_PLUG_SOP_P); + break; + default: + break; + } + + tbt->state = TBT_STATE_IDLE; + + mutex_unlock(&tbt->lock); + return; + +disable_plugs: + for (int i = TYPEC_PLUG_SOP_PP; i >= 0; --i) { + if (tbt->plug[i]) + typec_altmode_put_plug(tbt->plug[i]); + + tbt->plug[i] = NULL; + } + + tbt->state = TBT_STATE_ENTER; + schedule_work(&tbt->work); + mutex_unlock(&tbt->lock); +} + +/* + * If SOP' is available, enter that first (which will trigger a VDM response + * that will enter SOP" if available and then the port). If entering SOP' fails, + * stop attempting to enter either cable altmode (probably not supported) and + * directly enter the port altmode. + */ +static int tbt_enter_modes_ordered(struct typec_altmode *alt) +{ + struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt); + int ret = 0; + + lockdep_assert_held(&tbt->lock); + + if (!tbt_ready(tbt->alt)) + return -ENODEV; + + if (tbt->plug[TYPEC_PLUG_SOP_P]) { + ret = typec_cable_altmode_enter(alt, TYPEC_PLUG_SOP_P, NULL); + if (ret < 0) { + for (int i = TYPEC_PLUG_SOP_PP; i >= 0; --i) { + if (tbt->plug[i]) + typec_altmode_put_plug(tbt->plug[i]); + + tbt->plug[i] = NULL; + } + } else { + return ret; + } + } + + return tbt_enter_mode(tbt); +} + +static int tbt_cable_altmode_vdm(struct typec_altmode *alt, + enum typec_plug_index sop, const u32 hdr, + const u32 *vdo, int count) +{ + struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt); + int cmd_type = PD_VDO_CMDT(hdr); + int cmd = PD_VDO_CMD(hdr); + + mutex_lock(&tbt->lock); + + if (tbt->state != TBT_STATE_IDLE) { + mutex_unlock(&tbt->lock); + return -EBUSY; + } + + switch (cmd_type) { + case CMDT_RSP_ACK: + switch (cmd) { + case CMD_ENTER_MODE: + /* + * Following the order described in USB Type-C Spec + * R2.0 Section 6.7.3: SOP', SOP", then port. + */ + if (sop == TYPEC_PLUG_SOP_P) { + if (tbt->plug[TYPEC_PLUG_SOP_PP]) + tbt->state = TBT_STATE_SOP_PP_ENTER; + else + tbt->state = TBT_STATE_ENTER; + } else if (sop == TYPEC_PLUG_SOP_PP) + tbt->state = TBT_STATE_ENTER; + + break; + case CMD_EXIT_MODE: + /* Exit in opposite order: Port, SOP", then SOP'. */ + if (sop == TYPEC_PLUG_SOP_PP) + tbt->state = TBT_STATE_SOP_P_EXIT; + break; + } + break; + default: + break; + } + + if (tbt->state != TBT_STATE_IDLE) + schedule_work(&tbt->work); + + mutex_unlock(&tbt->lock); + return 0; +} + +static int tbt_altmode_vdm(struct typec_altmode *alt, + const u32 hdr, const u32 *vdo, int count) +{ + struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt); + struct typec_thunderbolt_data data; + int cmd_type = PD_VDO_CMDT(hdr); + int cmd = PD_VDO_CMD(hdr); + + mutex_lock(&tbt->lock); + + if (tbt->state != TBT_STATE_IDLE) { + mutex_unlock(&tbt->lock); + return -EBUSY; + } + + switch (cmd_type) { + case CMDT_RSP_ACK: + /* Port altmode is last to enter and first to exit. */ + switch (cmd) { + case CMD_ENTER_MODE: + memset(&data, 0, sizeof(data)); + + data.device_mode = tbt->alt->vdo; + data.enter_vdo = tbt->enter_vdo; + if (tbt->plug[TYPEC_PLUG_SOP_P]) + data.cable_mode = tbt->plug[TYPEC_PLUG_SOP_P]->vdo; + + typec_altmode_notify(alt, TYPEC_STATE_MODAL, &data); + break; + case CMD_EXIT_MODE: + if (tbt->plug[TYPEC_PLUG_SOP_PP]) + tbt->state = TBT_STATE_SOP_PP_EXIT; + else if (tbt->plug[TYPEC_PLUG_SOP_P]) + tbt->state = TBT_STATE_SOP_P_EXIT; + break; + } + break; + case CMDT_RSP_NAK: + switch (cmd) { + case CMD_ENTER_MODE: + dev_warn(&alt->dev, "Enter Mode refused\n"); + break; + default: + break; + } + break; + default: + break; + } + + if (tbt->state != TBT_STATE_IDLE) + schedule_work(&tbt->work); + + mutex_unlock(&tbt->lock); + + return 0; +} + +static int tbt_altmode_activate(struct typec_altmode *alt, int activate) +{ + struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt); + int ret; + + mutex_lock(&tbt->lock); + + if (activate) + ret = tbt_enter_modes_ordered(alt); + else + ret = typec_altmode_exit(alt); + + mutex_unlock(&tbt->lock); + + return ret; +} + +static const struct typec_altmode_ops tbt_altmode_ops = { + .vdm = tbt_altmode_vdm, + .activate = tbt_altmode_activate +}; + +static const struct typec_cable_ops tbt_cable_ops = { + .vdm = tbt_cable_altmode_vdm, +}; + +static int tbt_altmode_probe(struct typec_altmode *alt) +{ + struct tbt_altmode *tbt; + + tbt = devm_kzalloc(&alt->dev, sizeof(*tbt), GFP_KERNEL); + if (!tbt) + return -ENOMEM; + + INIT_WORK(&tbt->work, tbt_altmode_work); + mutex_init(&tbt->lock); + tbt->alt = alt; + + alt->desc = "Thunderbolt3"; + typec_altmode_set_drvdata(alt, tbt); + typec_altmode_set_ops(alt, &tbt_altmode_ops); + + if (tbt_ready(alt)) { + if (tbt->plug[TYPEC_PLUG_SOP_P]) + tbt->state = TBT_STATE_SOP_P_ENTER; + else if (tbt->plug[TYPEC_PLUG_SOP_PP]) + tbt->state = TBT_STATE_SOP_PP_ENTER; + else + tbt->state = TBT_STATE_ENTER; + schedule_work(&tbt->work); + } + + return 0; +} + +static void tbt_altmode_remove(struct typec_altmode *alt) +{ + struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt); + + for (int i = TYPEC_PLUG_SOP_PP; i >= 0; --i) { + if (tbt->plug[i]) + typec_altmode_put_plug(tbt->plug[i]); + } + + if (tbt->cable) + typec_cable_put(tbt->cable); +} + +static bool tbt_ready(struct typec_altmode *alt) +{ + struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt); + struct typec_altmode *plug; + + if (tbt->cable) + return true; + + /* Thunderbolt 3 requires a cable with eMarker */ + tbt->cable = typec_cable_get(typec_altmode2port(tbt->alt)); + if (!tbt->cable) + return false; + + /* We accept systems without SOP' or SOP''. This means the port altmode + * driver will be responsible for properly ordering entry/exit. + */ + for (int i = 0; i < TYPEC_PLUG_SOP_PP + 1; i++) { + plug = typec_altmode_get_plug(tbt->alt, i); + if (!plug) + continue; + + if (plug->svid != USB_TYPEC_TBT_SID) + break; + + plug->desc = "Thunderbolt3"; + plug->cable_ops = &tbt_cable_ops; + typec_altmode_set_drvdata(plug, tbt); + + tbt->plug[i] = plug; + } + + return true; +} + +static const struct typec_device_id tbt_typec_id[] = { + { USB_TYPEC_TBT_SID }, + { } +}; +MODULE_DEVICE_TABLE(typec, tbt_typec_id); + +static struct typec_altmode_driver tbt_altmode_driver = { + .id_table = tbt_typec_id, + .probe = tbt_altmode_probe, + .remove = tbt_altmode_remove, + .driver = { + .name = "typec-thunderbolt", + } +}; +module_typec_altmode_driver(tbt_altmode_driver); + +MODULE_AUTHOR("Heikki Krogerus <heikki.krogerus@linux.intel.com>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Thunderbolt3 USB Type-C Alternate Mode"); diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c index b12a07edc71b..0ae0a5ee3fae 100644 --- a/drivers/usb/typec/anx7411.c +++ b/drivers/usb/typec/anx7411.c @@ -6,6 +6,7 @@ * Copyright(c) 2022, Analogix Semiconductor. All rights reserved. * */ +#include <linux/bitfield.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/interrupt.h> @@ -289,6 +290,8 @@ struct anx7411_data { struct power_supply *psy; struct power_supply_desc psy_desc; struct device *dev; + struct fwnode_handle *switch_node; + struct fwnode_handle *mux_node; }; static u8 snk_identity[] = { @@ -884,8 +887,8 @@ static void anx7411_chip_standby(struct anx7411_data *ctx) OCM_RESET); ret |= anx7411_reg_write(ctx->tcpc_client, ANALOG_CTRL_10, 0x80); /* Set TCPC to RD and DRP enable */ - cc1 = TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT; - cc2 = TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT; + cc1 = FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RD); + cc2 = FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RD); ret |= anx7411_reg_write(ctx->tcpc_client, TCPC_ROLE_CTRL, TCPC_ROLE_CTRL_DRP | cc1 | cc2); @@ -1020,6 +1023,16 @@ static void anx7411_port_unregister_altmodes(struct typec_altmode **adev) } } +static void anx7411_port_unregister(struct typec_params *typecp) +{ + fwnode_handle_put(typecp->caps.fwnode); + anx7411_port_unregister_altmodes(typecp->port_amode); + if (typecp->port) + typec_unregister_port(typecp->port); + if (typecp->role_sw) + usb_role_switch_put(typecp->role_sw); +} + static int anx7411_usb_mux_set(struct typec_mux_dev *mux, struct typec_mux_state *state) { @@ -1088,6 +1101,7 @@ static void anx7411_unregister_mux(struct anx7411_data *ctx) if (ctx->typec.typec_mux) { typec_mux_unregister(ctx->typec.typec_mux); ctx->typec.typec_mux = NULL; + fwnode_handle_put(ctx->mux_node); } } @@ -1096,6 +1110,7 @@ static void anx7411_unregister_switch(struct anx7411_data *ctx) if (ctx->typec.typec_switch) { typec_switch_unregister(ctx->typec.typec_switch); ctx->typec.typec_switch = NULL; + fwnode_handle_put(ctx->switch_node); } } @@ -1103,28 +1118,29 @@ static int anx7411_typec_switch_probe(struct anx7411_data *ctx, struct device *dev) { int ret; - struct device_node *node; - node = of_get_child_by_name(dev->of_node, "orientation_switch"); - if (!node) + ctx->switch_node = device_get_named_child_node(dev, "orientation_switch"); + if (!ctx->switch_node) return 0; - ret = anx7411_register_switch(ctx, dev, &node->fwnode); + ret = anx7411_register_switch(ctx, dev, ctx->switch_node); if (ret) { dev_err(dev, "failed register switch"); + fwnode_handle_put(ctx->switch_node); return ret; } - node = of_get_child_by_name(dev->of_node, "mode_switch"); - if (!node) { + ctx->mux_node = device_get_named_child_node(dev, "mode_switch"); + if (!ctx->mux_node) { dev_err(dev, "no typec mux exist"); ret = -ENODEV; goto unregister_switch; } - ret = anx7411_register_mux(ctx, dev, &node->fwnode); + ret = anx7411_register_mux(ctx, dev, ctx->mux_node); if (ret) { dev_err(dev, "failed register mode switch"); + fwnode_handle_put(ctx->mux_node); ret = -ENODEV; goto unregister_switch; } @@ -1153,34 +1169,34 @@ static int anx7411_typec_port_probe(struct anx7411_data *ctx, ret = fwnode_property_read_string(fwnode, "power-role", &buf); if (ret) { dev_err(dev, "power-role not found: %d\n", ret); - return ret; + goto put_fwnode; } ret = typec_find_port_power_role(buf); if (ret < 0) - return ret; + goto put_fwnode; cap->type = ret; ret = fwnode_property_read_string(fwnode, "data-role", &buf); if (ret) { dev_err(dev, "data-role not found: %d\n", ret); - return ret; + goto put_fwnode; } ret = typec_find_port_data_role(buf); if (ret < 0) - return ret; + goto put_fwnode; cap->data = ret; ret = fwnode_property_read_string(fwnode, "try-power-role", &buf); if (ret) { dev_err(dev, "try-power-role not found: %d\n", ret); - return ret; + goto put_fwnode; } ret = typec_find_power_role(buf); if (ret < 0) - return ret; + goto put_fwnode; cap->prefer_role = ret; /* Get source pdos */ @@ -1192,7 +1208,7 @@ static int anx7411_typec_port_probe(struct anx7411_data *ctx, typecp->src_pdo_nr); if (ret < 0) { dev_err(dev, "source cap validate failed: %d\n", ret); - return -EINVAL; + goto put_fwnode; } typecp->caps_flags |= HAS_SOURCE_CAP; @@ -1206,7 +1222,7 @@ static int anx7411_typec_port_probe(struct anx7411_data *ctx, typecp->sink_pdo_nr); if (ret < 0) { dev_err(dev, "sink cap validate failed: %d\n", ret); - return -EINVAL; + goto put_fwnode; } for (i = 0; i < typecp->sink_pdo_nr; i++) { @@ -1250,13 +1266,21 @@ static int anx7411_typec_port_probe(struct anx7411_data *ctx, ret = PTR_ERR(ctx->typec.port); ctx->typec.port = NULL; dev_err(dev, "Failed to register type c port %d\n", ret); - return ret; + goto put_usb_role_switch; } typec_port_register_altmodes(ctx->typec.port, NULL, ctx, ctx->typec.port_amode, MAX_ALTMODE); return 0; + +put_usb_role_switch: + if (ctx->typec.role_sw) + usb_role_switch_put(ctx->typec.role_sw); +put_fwnode: + fwnode_handle_put(fwnode); + + return ret; } static int anx7411_typec_check_connection(struct anx7411_data *ctx) @@ -1339,12 +1363,6 @@ static void anx7411_get_gpio_irq(struct anx7411_data *ctx) dev_err(dev, "failed to get GPIO IRQ\n"); } -static enum power_supply_usb_type anx7411_psy_usb_types[] = { - POWER_SUPPLY_USB_TYPE_C, - POWER_SUPPLY_USB_TYPE_PD, - POWER_SUPPLY_USB_TYPE_PD_PPS, -}; - static enum power_supply_property anx7411_psy_props[] = { POWER_SUPPLY_PROP_USB_TYPE, POWER_SUPPLY_PROP_ONLINE, @@ -1422,8 +1440,9 @@ static int anx7411_psy_register(struct anx7411_data *ctx) psy_desc->name = psy_name; psy_desc->type = POWER_SUPPLY_TYPE_USB; - psy_desc->usb_types = anx7411_psy_usb_types; - psy_desc->num_usb_types = ARRAY_SIZE(anx7411_psy_usb_types); + psy_desc->usb_types = BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD) | + BIT(POWER_SUPPLY_USB_TYPE_PD_PPS); psy_desc->properties = anx7411_psy_props; psy_desc->num_properties = ARRAY_SIZE(anx7411_psy_props); @@ -1527,8 +1546,7 @@ free_wq: destroy_workqueue(plat->workqueue); free_typec_port: - typec_unregister_port(plat->typec.port); - anx7411_port_unregister_altmodes(plat->typec.port_amode); + anx7411_port_unregister(&plat->typec); free_typec_switch: anx7411_unregister_switch(plat); @@ -1552,21 +1570,15 @@ static void anx7411_i2c_remove(struct i2c_client *client) i2c_unregister_device(plat->spi_client); - if (plat->typec.role_sw) - usb_role_switch_put(plat->typec.role_sw); - anx7411_unregister_mux(plat); anx7411_unregister_switch(plat); - if (plat->typec.port) - typec_unregister_port(plat->typec.port); - - anx7411_port_unregister_altmodes(plat->typec.port_amode); + anx7411_port_unregister(&plat->typec); } static const struct i2c_device_id anx7411_id[] = { - {"anx7411", 0}, + { "anx7411" }, {} }; @@ -1576,6 +1588,7 @@ static const struct of_device_id anx_match_table[] = { {.compatible = "analogix,anx7411",}, {}, }; +MODULE_DEVICE_TABLE(of, anx_match_table); static struct i2c_driver anx7411_driver = { .driver = { diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c index 6ea103e1abae..ae90688d23e4 100644 --- a/drivers/usb/typec/bus.c +++ b/drivers/usb/typec/bus.c @@ -447,15 +447,14 @@ static struct attribute *typec_attrs[] = { }; ATTRIBUTE_GROUPS(typec); -static int typec_match(struct device *dev, struct device_driver *driver) +static int typec_match(struct device *dev, const struct device_driver *driver) { struct typec_altmode_driver *drv = to_altmode_driver(driver); struct typec_altmode *altmode = to_typec_altmode(dev); const struct typec_device_id *id; for (id = drv->id_table; id->svid; id++) - if (id->svid == altmode->svid && - (id->mode == TYPEC_ANY_MODE || id->mode == altmode->mode)) + if (id->svid == altmode->svid) return 1; return 0; } @@ -470,8 +469,7 @@ static int typec_uevent(const struct device *dev, struct kobj_uevent_env *env) if (add_uevent_var(env, "MODE=%u", altmode->mode)) return -ENOMEM; - return add_uevent_var(env, "MODALIAS=typec:id%04Xm%02X", - altmode->svid, altmode->mode); + return add_uevent_var(env, "MODALIAS=typec:id%04X", altmode->svid); } static int typec_altmode_create_links(struct altmode *alt) diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 9610e647a8d4..67a533e35150 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -10,6 +10,7 @@ #include <linux/mutex.h> #include <linux/property.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/usb/pd_vdo.h> #include <linux/usb/typec_mux.h> #include <linux/usb/typec_retimer.h> @@ -219,24 +220,31 @@ static ssize_t usb_power_delivery_revision_show(struct device *dev, char *buf); static DEVICE_ATTR_RO(usb_power_delivery_revision); +static const char * const usb_modes[] = { + [USB_MODE_NONE] = "none", + [USB_MODE_USB2] = "usb2", + [USB_MODE_USB3] = "usb3", + [USB_MODE_USB4] = "usb4" +}; + /* ------------------------------------------------------------------------- */ /* Alternate Modes */ -static int altmode_match(struct device *dev, void *data) +static int altmode_match(struct device *dev, const void *data) { struct typec_altmode *adev = to_typec_altmode(dev); - struct typec_device_id *id = data; + const struct typec_device_id *id = data; if (!is_typec_altmode(dev)) return 0; - return ((adev->svid == id->svid) && (adev->mode == id->mode)); + return (adev->svid == id->svid); } static void typec_altmode_set_partner(struct altmode *altmode) { struct typec_altmode *adev = &altmode->adev; - struct typec_device_id id = { adev->svid, adev->mode, }; + struct typec_device_id id = { adev->svid }; struct typec_port *port = typec_altmode2port(adev); struct altmode *partner; struct device *dev; @@ -354,7 +362,7 @@ active_show(struct device *dev, struct device_attribute *attr, char *buf) { struct typec_altmode *alt = to_typec_altmode(dev); - return sprintf(buf, "%s\n", alt->active ? "yes" : "no"); + return sprintf(buf, "%s\n", str_yes_no(alt->active)); } static ssize_t active_store(struct device *dev, struct device_attribute *attr, @@ -451,7 +459,8 @@ static umode_t typec_altmode_attr_is_visible(struct kobject *kobj, struct typec_altmode *adev = to_typec_altmode(kobj_to_dev(kobj)); if (attr == &dev_attr_active.attr) - if (!adev->ops || !adev->ops->activate) + if (!is_typec_port(adev->dev.parent) && + (!adev->ops || !adev->ops->activate)) return 0444; return attr->mode; @@ -467,6 +476,22 @@ static const struct attribute_group *typec_altmode_groups[] = { NULL }; +/** + * typec_altmode_set_ops - Set ops for altmode + * @adev: Handle to the alternate mode + * @ops: Ops for the alternate mode + * + * After setting ops, attribute visiblity needs to be refreshed if the alternate + * mode can be activated. + */ +void typec_altmode_set_ops(struct typec_altmode *adev, + const struct typec_altmode_ops *ops) +{ + adev->ops = ops; + sysfs_update_group(&adev->dev.kobj, &typec_altmode_group); +} +EXPORT_SYMBOL_GPL(typec_altmode_set_ops); + static int altmode_id_get(struct device *dev) { struct ida *ids; @@ -503,6 +528,7 @@ static void typec_altmode_release(struct device *dev) typec_altmode_put_partner(alt); altmode_id_remove(alt->adev.dev.parent, alt->id); + put_device(alt->adev.dev.parent); kfree(alt); } @@ -539,7 +565,7 @@ typec_register_altmode(struct device *parent, if (is_port) { alt->attrs[3] = &dev_attr_supported_roles.attr; - alt->adev.active = true; /* Enabled by default */ + alt->adev.active = !desc->inactive; /* Enabled by default */ } sprintf(alt->group_name, "mode%d", desc->mode); @@ -552,6 +578,8 @@ typec_register_altmode(struct device *parent, alt->adev.dev.type = &typec_altmode_dev_type; dev_set_name(&alt->adev.dev, "%s.%u", dev_name(parent), id); + get_device(alt->adev.dev.parent); + /* Link partners and plugs with the ports */ if (!is_port) typec_altmode_set_partner(alt); @@ -595,6 +623,75 @@ EXPORT_SYMBOL_GPL(typec_unregister_altmode); /* ------------------------------------------------------------------------- */ /* Type-C Partners */ +/** + * typec_partner_set_usb_mode - Assign active USB Mode for the partner + * @partner: USB Type-C partner + * @mode: USB Mode (USB2, USB3 or USB4) + * + * The port drivers can use this function to assign the active USB Mode to + * @partner. The USB Mode can change for example due to Data Reset. + */ +void typec_partner_set_usb_mode(struct typec_partner *partner, enum usb_mode mode) +{ + if (!partner || partner->usb_mode == mode) + return; + + partner->usb_capability |= BIT(mode - 1); + partner->usb_mode = mode; + sysfs_notify(&partner->dev.kobj, NULL, "usb_mode"); +} +EXPORT_SYMBOL_GPL(typec_partner_set_usb_mode); + +static ssize_t +usb_mode_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct typec_partner *partner = to_typec_partner(dev); + int len = 0; + int i; + + for (i = USB_MODE_USB2; i < USB_MODE_USB4 + 1; i++) { + if (!(BIT(i - 1) & partner->usb_capability)) + continue; + + if (i == partner->usb_mode) + len += sysfs_emit_at(buf, len, "[%s] ", usb_modes[i]); + else + len += sysfs_emit_at(buf, len, "%s ", usb_modes[i]); + } + + sysfs_emit_at(buf, len - 1, "\n"); + + return len; +} + +static ssize_t usb_mode_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct typec_partner *partner = to_typec_partner(dev); + struct typec_port *port = to_typec_port(dev->parent); + int mode; + int ret; + + if (!port->ops || !port->ops->enter_usb_mode) + return -EOPNOTSUPP; + + mode = sysfs_match_string(usb_modes, buf); + if (mode < 0) + return mode; + + if (mode == partner->usb_mode) + return size; + + ret = port->ops->enter_usb_mode(port, mode); + if (ret) + return ret; + + typec_partner_set_usb_mode(partner, mode); + + return size; +} +static DEVICE_ATTR_RW(usb_mode); + static ssize_t accessory_mode_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -611,7 +708,7 @@ static ssize_t supports_usb_power_delivery_show(struct device *dev, { struct typec_partner *p = to_typec_partner(dev); - return sprintf(buf, "%s\n", p->usb_pd ? "yes" : "no"); + return sprintf(buf, "%s\n", str_yes_no(p->usb_pd)); } static DEVICE_ATTR_RO(supports_usb_power_delivery); @@ -641,6 +738,7 @@ static struct attribute *typec_partner_attrs[] = { &dev_attr_supports_usb_power_delivery.attr, &dev_attr_number_of_alternate_modes.attr, &dev_attr_type.attr, + &dev_attr_usb_mode.attr, &dev_attr_usb_power_delivery_revision.attr, NULL }; @@ -648,6 +746,14 @@ static struct attribute *typec_partner_attrs[] = { static umode_t typec_partner_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n) { struct typec_partner *partner = to_typec_partner(kobj_to_dev(kobj)); + struct typec_port *port = to_typec_port(partner->dev.parent); + + if (attr == &dev_attr_usb_mode.attr) { + if (!partner->usb_capability) + return 0; + if (!port->ops || !port->ops->enter_usb_mode) + return 0444; + } if (attr == &dev_attr_number_of_alternate_modes.attr) { if (partner->num_altmodes < 0) @@ -721,10 +827,33 @@ static void typec_partner_unlink_device(struct typec_partner *partner, struct de */ int typec_partner_set_identity(struct typec_partner *partner) { - if (!partner->identity) + u8 usb_capability = partner->usb_capability; + struct device *dev = &partner->dev; + struct usb_pd_identity *id; + + id = get_pd_identity(dev); + if (!id) return -EINVAL; - typec_report_identity(&partner->dev); + if (to_typec_port(dev->parent)->data_role == TYPEC_HOST) { + u32 devcap = PD_VDO_UFP_DEVCAP(id->vdo[0]); + + if (devcap & (DEV_USB2_CAPABLE | DEV_USB2_BILLBOARD)) + usb_capability |= USB_CAPABILITY_USB2; + if (devcap & DEV_USB3_CAPABLE) + usb_capability |= USB_CAPABILITY_USB3; + if (devcap & DEV_USB4_CAPABLE) + usb_capability |= USB_CAPABILITY_USB4; + } else { + usb_capability = PD_VDO_DFP_HOSTCAP(id->vdo[0]); + } + + if (partner->usb_capability != usb_capability) { + partner->usb_capability = usb_capability; + sysfs_notify(&dev->kobj, NULL, "usb_mode"); + } + + typec_report_identity(dev); return 0; } EXPORT_SYMBOL_GPL(typec_partner_set_identity); @@ -894,6 +1023,7 @@ struct typec_partner *typec_register_partner(struct typec_port *port, partner->usb_pd = desc->usb_pd; partner->accessory = desc->accessory; partner->num_altmodes = -1; + partner->usb_capability = desc->usb_capability; partner->pd_revision = desc->pd_revision; partner->svdm_version = port->cap->svdm_version; partner->attach = desc->attach; @@ -913,9 +1043,20 @@ struct typec_partner *typec_register_partner(struct typec_port *port, partner->dev.type = &typec_partner_dev_type; dev_set_name(&partner->dev, "%s-partner", dev_name(&port->dev)); + if (port->usb2_dev) { + partner->usb_capability |= USB_CAPABILITY_USB2; + partner->usb_mode = USB_MODE_USB2; + } + if (port->usb3_dev) { + partner->usb_capability |= USB_CAPABILITY_USB2 | USB_CAPABILITY_USB3; + partner->usb_mode = USB_MODE_USB3; + } + + mutex_lock(&port->partner_link_lock); ret = device_register(&partner->dev); if (ret) { dev_err(&port->dev, "failed to register partner (%d)\n", ret); + mutex_unlock(&port->partner_link_lock); put_device(&partner->dev); return ERR_PTR(ret); } @@ -924,6 +1065,7 @@ struct typec_partner *typec_register_partner(struct typec_port *port, typec_partner_link_device(partner, port->usb2_dev); if (port->usb3_dev) typec_partner_link_device(partner, port->usb3_dev); + mutex_unlock(&port->partner_link_lock); return partner; } @@ -944,12 +1086,18 @@ void typec_unregister_partner(struct typec_partner *partner) port = to_typec_port(partner->dev.parent); - if (port->usb2_dev) + mutex_lock(&port->partner_link_lock); + if (port->usb2_dev) { typec_partner_unlink_device(partner, port->usb2_dev); - if (port->usb3_dev) + port->usb2_dev = NULL; + } + if (port->usb3_dev) { typec_partner_unlink_device(partner, port->usb3_dev); + port->usb3_dev = NULL; + } device_unregister(&partner->dev); + mutex_unlock(&port->partner_link_lock); } EXPORT_SYMBOL_GPL(typec_unregister_partner); @@ -1145,11 +1293,6 @@ const struct device_type typec_cable_dev_type = { .release = typec_cable_release, }; -static int cable_match(struct device *dev, void *data) -{ - return is_typec_cable(dev); -} - /** * typec_cable_get - Get a reference to the USB Type-C cable * @port: The USB Type-C Port the cable is connected to @@ -1161,7 +1304,8 @@ struct typec_cable *typec_cable_get(struct typec_port *port) { struct device *dev; - dev = device_find_child(&port->dev, NULL, cable_match); + dev = device_find_child(&port->dev, &typec_cable_dev_type, + device_match_type); if (!dev) return NULL; @@ -1274,6 +1418,67 @@ EXPORT_SYMBOL_GPL(typec_unregister_cable); /* USB Type-C ports */ /** + * typec_port_set_usb_mode - Set the operational USB mode for the port + * @port: USB Type-C port + * @mode: USB Mode (USB2, USB3 or USB4) + * + * @mode will be used with the next Enter_USB message. Existing connections are + * not affected. + */ +void typec_port_set_usb_mode(struct typec_port *port, enum usb_mode mode) +{ + port->usb_mode = mode; +} +EXPORT_SYMBOL_GPL(typec_port_set_usb_mode); + +static ssize_t +usb_capability_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct typec_port *port = to_typec_port(dev); + int len = 0; + int i; + + for (i = USB_MODE_USB2; i < USB_MODE_USB4 + 1; i++) { + if (!(BIT(i - 1) & port->cap->usb_capability)) + continue; + + if (i == port->usb_mode) + len += sysfs_emit_at(buf, len, "[%s] ", usb_modes[i]); + else + len += sysfs_emit_at(buf, len, "%s ", usb_modes[i]); + } + + sysfs_emit_at(buf, len - 1, "\n"); + + return len; +} + +static ssize_t +usb_capability_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct typec_port *port = to_typec_port(dev); + int ret = 0; + int mode; + + if (!port->ops || !port->ops->default_usb_mode_set) + return -EOPNOTSUPP; + + mode = sysfs_match_string(usb_modes, buf); + if (mode < 0) + return mode; + + ret = port->ops->default_usb_mode_set(port, mode); + if (ret) + return ret; + + port->usb_mode = mode; + + return size; +} +static DEVICE_ATTR_RW(usb_capability); + +/** * typec_port_set_usb_power_delivery - Assign USB PD for port. * @port: USB Type-C port. * @pd: USB PD instance. @@ -1660,7 +1865,7 @@ static ssize_t vconn_source_show(struct device *dev, struct typec_port *port = to_typec_port(dev); return sprintf(buf, "%s\n", - port->vconn_role == TYPEC_SOURCE ? "yes" : "no"); + str_yes_no(port->vconn_role == TYPEC_SOURCE)); } static DEVICE_ATTR_RW(vconn_source); @@ -1741,6 +1946,7 @@ static struct attribute *typec_attrs[] = { &dev_attr_vconn_source.attr, &dev_attr_port_type.attr, &dev_attr_orientation.attr, + &dev_attr_usb_capability.attr, NULL, }; @@ -1774,6 +1980,11 @@ static umode_t typec_attr_is_visible(struct kobject *kobj, if (port->cap->orientation_aware) return 0444; return 0; + } else if (attr == &dev_attr_usb_capability.attr) { + if (!port->cap->usb_capability) + return 0; + if (!port->ops || !port->ops->default_usb_mode_set) + return 0444; } return attr->mode; @@ -1824,16 +2035,12 @@ const struct device_type typec_port_dev_type = { /* --------------------------------------- */ /* Driver callbacks to report role updates */ -static int partner_match(struct device *dev, void *data) -{ - return is_typec_partner(dev); -} - static struct typec_partner *typec_get_partner(struct typec_port *port) { struct device *dev; - dev = device_find_child(&port->dev, NULL, partner_match); + dev = device_find_child(&port->dev, &typec_partner_dev_type, + device_match_type); if (!dev) return NULL; @@ -1843,25 +2050,35 @@ static struct typec_partner *typec_get_partner(struct typec_port *port) static void typec_partner_attach(struct typec_connector *con, struct device *dev) { struct typec_port *port = container_of(con, struct typec_port, con); - struct typec_partner *partner = typec_get_partner(port); + struct typec_partner *partner; struct usb_device *udev = to_usb_device(dev); + enum usb_mode usb_mode; - if (udev->speed < USB_SPEED_SUPER) + mutex_lock(&port->partner_link_lock); + if (udev->speed < USB_SPEED_SUPER) { + usb_mode = USB_MODE_USB2; port->usb2_dev = dev; - else + } else { + usb_mode = USB_MODE_USB3; port->usb3_dev = dev; + } + partner = typec_get_partner(port); if (partner) { + typec_partner_set_usb_mode(partner, usb_mode); typec_partner_link_device(partner, dev); put_device(&partner->dev); } + mutex_unlock(&port->partner_link_lock); } static void typec_partner_deattach(struct typec_connector *con, struct device *dev) { struct typec_port *port = container_of(con, struct typec_port, con); - struct typec_partner *partner = typec_get_partner(port); + struct typec_partner *partner; + mutex_lock(&port->partner_link_lock); + partner = typec_get_partner(port); if (partner) { typec_partner_unlink_device(partner, dev); put_device(&partner->dev); @@ -1871,6 +2088,7 @@ static void typec_partner_deattach(struct typec_connector *con, struct device *d port->usb2_dev = NULL; else if (port->usb3_dev == dev) port->usb3_dev = NULL; + mutex_unlock(&port->partner_link_lock); } /** @@ -1961,7 +2179,9 @@ void typec_set_pwr_opmode(struct typec_port *port, sysfs_notify(&port->dev.kobj, NULL, "power_operation_mode"); kobject_uevent(&port->dev.kobj, KOBJ_CHANGE); - partner_dev = device_find_child(&port->dev, NULL, partner_match); + partner_dev = device_find_child(&port->dev, + &typec_partner_dev_type, + device_match_type); if (partner_dev) { struct typec_partner *partner = to_typec_partner(partner_dev); @@ -2125,7 +2345,9 @@ int typec_get_negotiated_svdm_version(struct typec_port *port) enum usb_pd_svdm_ver svdm_version; struct device *partner_dev; - partner_dev = device_find_child(&port->dev, NULL, partner_match); + partner_dev = device_find_child(&port->dev, + &typec_partner_dev_type, + device_match_type); if (!partner_dev) return -ENODEV; @@ -2152,7 +2374,8 @@ int typec_get_cable_svdm_version(struct typec_port *port) enum usb_pd_svdm_ver svdm_version; struct device *cable_dev; - cable_dev = device_find_child(&port->dev, NULL, cable_match); + cable_dev = device_find_child(&port->dev, &typec_cable_dev_type, + device_match_type); if (!cable_dev) return -ENODEV; @@ -2274,7 +2497,7 @@ void typec_port_register_altmodes(struct typec_port *port, const struct typec_altmode_ops *ops, void *drvdata, struct typec_altmode **altmodes, size_t n) { - struct fwnode_handle *altmodes_node, *child; + struct fwnode_handle *child; struct typec_altmode_desc desc; struct typec_altmode *alt; size_t index = 0; @@ -2282,7 +2505,9 @@ void typec_port_register_altmodes(struct typec_port *port, u32 vdo; int ret; - altmodes_node = device_get_named_child_node(&port->dev, "altmodes"); + struct fwnode_handle *altmodes_node __free(fwnode_handle) = + device_get_named_child_node(&port->dev, "altmodes"); + if (!altmodes_node) return; /* No altmodes specified */ @@ -2317,7 +2542,7 @@ void typec_port_register_altmodes(struct typec_port *port, continue; } - alt->ops = ops; + typec_altmode_set_ops(alt, ops); typec_altmode_set_drvdata(alt, drvdata); altmodes[index] = alt; index++; @@ -2404,6 +2629,7 @@ struct typec_port *typec_register_port(struct device *parent, ida_init(&port->mode_ids); mutex_init(&port->port_type_lock); + mutex_init(&port->partner_link_lock); port->id = id; port->ops = cap->ops; @@ -2412,6 +2638,13 @@ struct typec_port *typec_register_port(struct device *parent, port->con.attach = typec_partner_attach; port->con.deattach = typec_partner_deattach; + if (cap->usb_capability & USB_CAPABILITY_USB4) + port->usb_mode = USB_MODE_USB4; + else if (cap->usb_capability & USB_CAPABILITY_USB3) + port->usb_mode = USB_MODE_USB3; + else if (cap->usb_capability & USB_CAPABILITY_USB2) + port->usb_mode = USB_MODE_USB2; + device_initialize(&port->dev); port->dev.class = &typec_class; port->dev.parent = parent; diff --git a/drivers/usb/typec/class.h b/drivers/usb/typec/class.h index 7485cdb9dd20..db2fe96c48ff 100644 --- a/drivers/usb/typec/class.h +++ b/drivers/usb/typec/class.h @@ -35,6 +35,8 @@ struct typec_partner { int num_altmodes; u16 pd_revision; /* 0300H = "3.0" */ enum usb_pd_svdm_ver svdm_version; + enum usb_mode usb_mode; + u8 usb_capability; struct usb_power_delivery *pd; @@ -55,7 +57,9 @@ struct typec_port { enum typec_role vconn_role; enum typec_pwr_opmode pwr_opmode; enum typec_port_type port_type; + enum usb_mode usb_mode; struct mutex port_type_lock; + struct mutex partner_link_lock; enum typec_orientation orientation; struct typec_switch *sw; diff --git a/drivers/usb/typec/hd3ss3220.c b/drivers/usb/typec/hd3ss3220.c index fb1242e82ffd..3ecc688dda82 100644 --- a/drivers/usb/typec/hd3ss3220.c +++ b/drivers/usb/typec/hd3ss3220.c @@ -16,10 +16,17 @@ #include <linux/delay.h> #include <linux/workqueue.h> +#define HD3SS3220_REG_CN_STAT 0x08 #define HD3SS3220_REG_CN_STAT_CTRL 0x09 #define HD3SS3220_REG_GEN_CTRL 0x0A #define HD3SS3220_REG_DEV_REV 0xA0 +/* Register HD3SS3220_REG_CN_STAT */ +#define HD3SS3220_REG_CN_STAT_CURRENT_MODE_MASK (BIT(7) | BIT(6)) +#define HD3SS3220_REG_CN_STAT_CURRENT_MODE_DEFAULT 0x00 +#define HD3SS3220_REG_CN_STAT_CURRENT_MODE_MID BIT(6) +#define HD3SS3220_REG_CN_STAT_CURRENT_MODE_HIGH BIT(7) + /* Register HD3SS3220_REG_CN_STAT_CTRL*/ #define HD3SS3220_REG_CN_STAT_CTRL_ATTACHED_STATE_MASK (BIT(7) | BIT(6)) #define HD3SS3220_REG_CN_STAT_CTRL_AS_DFP BIT(6) @@ -28,10 +35,16 @@ #define HD3SS3220_REG_CN_STAT_CTRL_INT_STATUS BIT(4) /* Register HD3SS3220_REG_GEN_CTRL*/ +#define HD3SS3220_REG_GEN_CTRL_DISABLE_TERM BIT(0) #define HD3SS3220_REG_GEN_CTRL_SRC_PREF_MASK (BIT(2) | BIT(1)) #define HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT 0x00 #define HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SNK BIT(1) #define HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SRC (BIT(2) | BIT(1)) +#define HD3SS3220_REG_GEN_CTRL_MODE_SELECT_MASK (BIT(5) | BIT(4)) +#define HD3SS3220_REG_GEN_CTRL_MODE_SELECT_DEFAULT 0x00 +#define HD3SS3220_REG_GEN_CTRL_MODE_SELECT_DFP BIT(5) +#define HD3SS3220_REG_GEN_CTRL_MODE_SELECT_UFP BIT(4) +#define HD3SS3220_REG_GEN_CTRL_MODE_SELECT_DRP (BIT(5) | BIT(4)) struct hd3ss3220 { struct device *dev; @@ -43,8 +56,96 @@ struct hd3ss3220 { bool poll; }; -static int hd3ss3220_set_source_pref(struct hd3ss3220 *hd3ss3220, int src_pref) +static int hd3ss3220_set_power_opmode(struct hd3ss3220 *hd3ss3220, int power_opmode) +{ + int current_mode; + + switch (power_opmode) { + case TYPEC_PWR_MODE_USB: + current_mode = HD3SS3220_REG_CN_STAT_CURRENT_MODE_DEFAULT; + break; + case TYPEC_PWR_MODE_1_5A: + current_mode = HD3SS3220_REG_CN_STAT_CURRENT_MODE_MID; + break; + case TYPEC_PWR_MODE_3_0A: + current_mode = HD3SS3220_REG_CN_STAT_CURRENT_MODE_HIGH; + break; + case TYPEC_PWR_MODE_PD: /* Power delivery not supported */ + default: + dev_err(hd3ss3220->dev, "bad power operation mode: %d\n", power_opmode); + return -EINVAL; + } + + return regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_CN_STAT, + HD3SS3220_REG_CN_STAT_CURRENT_MODE_MASK, + current_mode); +} + +static int hd3ss3220_set_port_type(struct hd3ss3220 *hd3ss3220, int type) +{ + int mode_select, err; + + switch (type) { + case TYPEC_PORT_SRC: + mode_select = HD3SS3220_REG_GEN_CTRL_MODE_SELECT_DFP; + break; + case TYPEC_PORT_SNK: + mode_select = HD3SS3220_REG_GEN_CTRL_MODE_SELECT_UFP; + break; + case TYPEC_PORT_DRP: + mode_select = HD3SS3220_REG_GEN_CTRL_MODE_SELECT_DRP; + break; + default: + dev_err(hd3ss3220->dev, "bad port type: %d\n", type); + return -EINVAL; + } + + /* Disable termination before changing MODE_SELECT as required by datasheet */ + err = regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_GEN_CTRL, + HD3SS3220_REG_GEN_CTRL_DISABLE_TERM, + HD3SS3220_REG_GEN_CTRL_DISABLE_TERM); + if (err < 0) { + dev_err(hd3ss3220->dev, "Failed to disable port for mode change: %d\n", err); + return err; + } + + err = regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_GEN_CTRL, + HD3SS3220_REG_GEN_CTRL_MODE_SELECT_MASK, + mode_select); + if (err < 0) { + dev_err(hd3ss3220->dev, "Failed to change mode: %d\n", err); + regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_GEN_CTRL, + HD3SS3220_REG_GEN_CTRL_DISABLE_TERM, 0); + return err; + } + + err = regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_GEN_CTRL, + HD3SS3220_REG_GEN_CTRL_DISABLE_TERM, 0); + if (err < 0) + dev_err(hd3ss3220->dev, "Failed to re-enable port after mode change: %d\n", err); + + return err; +} + +static int hd3ss3220_set_source_pref(struct hd3ss3220 *hd3ss3220, int prefer_role) { + int src_pref; + + switch (prefer_role) { + case TYPEC_NO_PREFERRED_ROLE: + src_pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT; + break; + case TYPEC_SINK: + src_pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SNK; + break; + case TYPEC_SOURCE: + src_pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SRC; + break; + default: + dev_err(hd3ss3220->dev, "bad role preference: %d\n", prefer_role); + return -EINVAL; + } + return regmap_update_bits(hd3ss3220->regmap, HD3SS3220_REG_GEN_CTRL, HD3SS3220_REG_GEN_CTRL_SRC_PREF_MASK, src_pref); @@ -76,31 +177,23 @@ static enum usb_role hd3ss3220_get_attached_state(struct hd3ss3220 *hd3ss3220) return attached_state; } -static int hd3ss3220_dr_set(struct typec_port *port, enum typec_data_role role) +static int hd3ss3220_try_role(struct typec_port *port, int role) { struct hd3ss3220 *hd3ss3220 = typec_get_drvdata(port); - enum usb_role role_val; - int pref, ret = 0; - if (role == TYPEC_HOST) { - role_val = USB_ROLE_HOST; - pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SRC; - } else { - role_val = USB_ROLE_DEVICE; - pref = HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_TRY_SNK; - } - - ret = hd3ss3220_set_source_pref(hd3ss3220, pref); - usleep_range(10, 100); + return hd3ss3220_set_source_pref(hd3ss3220, role); +} - usb_role_switch_set_role(hd3ss3220->role_sw, role_val); - typec_set_data_role(hd3ss3220->port, role); +static int hd3ss3220_port_type_set(struct typec_port *port, enum typec_port_type type) +{ + struct hd3ss3220 *hd3ss3220 = typec_get_drvdata(port); - return ret; + return hd3ss3220_set_port_type(hd3ss3220, type); } static const struct typec_operations hd3ss3220_ops = { - .dr_set = hd3ss3220_dr_set + .try_role = hd3ss3220_try_role, + .port_type_set = hd3ss3220_port_type_set, }; static void hd3ss3220_set_role(struct hd3ss3220 *hd3ss3220) @@ -108,9 +201,6 @@ static void hd3ss3220_set_role(struct hd3ss3220 *hd3ss3220) enum usb_role role_state = hd3ss3220_get_attached_state(hd3ss3220); usb_role_switch_set_role(hd3ss3220->role_sw, role_state); - if (role_state == USB_ROLE_NONE) - hd3ss3220_set_source_pref(hd3ss3220, - HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT); switch (role_state) { case USB_ROLE_HOST: @@ -162,6 +252,67 @@ static irqreturn_t hd3ss3220_irq_handler(int irq, void *data) return hd3ss3220_irq(hd3ss3220); } +static int hd3ss3220_configure_power_opmode(struct hd3ss3220 *hd3ss3220, + struct fwnode_handle *connector) +{ + /* + * Supported power operation mode can be configured through device tree + */ + const char *cap_str; + int ret, power_opmode; + + ret = fwnode_property_read_string(connector, "typec-power-opmode", &cap_str); + if (ret) + return 0; + + power_opmode = typec_find_pwr_opmode(cap_str); + return hd3ss3220_set_power_opmode(hd3ss3220, power_opmode); +} + +static int hd3ss3220_configure_port_type(struct hd3ss3220 *hd3ss3220, + struct fwnode_handle *connector, + struct typec_capability *cap) +{ + /* + * Port type can be configured through device tree + */ + const char *cap_str; + int ret; + + ret = fwnode_property_read_string(connector, "power-role", &cap_str); + if (ret) + return 0; + + ret = typec_find_port_power_role(cap_str); + if (ret < 0) + return ret; + + cap->type = ret; + return hd3ss3220_set_port_type(hd3ss3220, cap->type); +} + +static int hd3ss3220_configure_source_pref(struct hd3ss3220 *hd3ss3220, + struct fwnode_handle *connector, + struct typec_capability *cap) +{ + /* + * Preferred role can be configured through device tree + */ + const char *cap_str; + int ret; + + ret = fwnode_property_read_string(connector, "try-power-role", &cap_str); + if (ret) + return 0; + + ret = typec_find_power_role(cap_str); + if (ret < 0) + return ret; + + cap->prefer_role = ret; + return hd3ss3220_set_source_pref(hd3ss3220, cap->prefer_role); +} + static const struct regmap_config config = { .reg_bits = 8, .val_bits = 8, @@ -188,8 +339,6 @@ static int hd3ss3220_probe(struct i2c_client *client) if (IS_ERR(hd3ss3220->regmap)) return PTR_ERR(hd3ss3220->regmap); - hd3ss3220_set_source_pref(hd3ss3220, - HD3SS3220_REG_GEN_CTRL_SRC_PREF_DRP_DEFAULT); /* For backward compatibility check the connector child node first */ connector = device_get_named_child_node(hd3ss3220->dev, "connector"); if (connector) { @@ -217,12 +366,24 @@ static int hd3ss3220_probe(struct i2c_client *client) typec_cap.ops = &hd3ss3220_ops; typec_cap.fwnode = connector; + ret = hd3ss3220_configure_source_pref(hd3ss3220, connector, &typec_cap); + if (ret < 0) + goto err_put_role; + + ret = hd3ss3220_configure_port_type(hd3ss3220, connector, &typec_cap); + if (ret < 0) + goto err_put_role; + hd3ss3220->port = typec_register_port(&client->dev, &typec_cap); if (IS_ERR(hd3ss3220->port)) { ret = PTR_ERR(hd3ss3220->port); goto err_put_role; } + ret = hd3ss3220_configure_power_opmode(hd3ss3220, connector); + if (ret < 0) + goto err_unreg_port; + hd3ss3220_set_role(hd3ss3220); ret = regmap_read(hd3ss3220->regmap, HD3SS3220_REG_CN_STAT_CTRL, &data); if (ret < 0) diff --git a/drivers/usb/typec/mux/Kconfig b/drivers/usb/typec/mux/Kconfig index 399c7b0983df..6dd8f961b593 100644 --- a/drivers/usb/typec/mux/Kconfig +++ b/drivers/usb/typec/mux/Kconfig @@ -56,16 +56,35 @@ config TYPEC_MUX_NB7VPQ904M Say Y or M if your system has a On Semiconductor NB7VPQ904M Type-C redriver chip found on some devices with a Type-C port. +config TYPEC_MUX_PS883X + tristate "Parade PS883x Type-C retimer driver" + depends on I2C + depends on DRM || DRM=n + select DRM_AUX_BRIDGE if DRM_BRIDGE && OF + select REGMAP_I2C + help + Say Y or M if your system has a Parade PS883x Type-C retimer chip + found on some devices with a Type-C port. + config TYPEC_MUX_PTN36502 tristate "NXP PTN36502 Type-C redriver driver" depends on I2C depends on DRM || DRM=n - select DRM_PANEL_BRIDGE if DRM + select DRM_AUX_BRIDGE if DRM_BRIDGE && OF select REGMAP_I2C help Say Y or M if your system has a NXP PTN36502 Type-C redriver chip found on some devices with a Type-C port. +config TYPEC_MUX_TUSB1046 + tristate "TI TUSB1046 Type-C crosspoint switch driver" + depends on I2C + help + Driver for the Texas Instruments TUSB1046-DCI crosspoint switch. + Supports flipping USB-C SuperSpeed lanes to adapt to orientation + changes, as well as muxing DisplayPort and sideband signals to a + common Type-C connector. + config TYPEC_MUX_WCD939X_USBSS tristate "Qualcomm WCD939x USBSS Analog Audio Switch driver" depends on I2C diff --git a/drivers/usb/typec/mux/Makefile b/drivers/usb/typec/mux/Makefile index bb96f30267af..b4f599eb5053 100644 --- a/drivers/usb/typec/mux/Makefile +++ b/drivers/usb/typec/mux/Makefile @@ -6,5 +6,7 @@ obj-$(CONFIG_TYPEC_MUX_PI3USB30532) += pi3usb30532.o obj-$(CONFIG_TYPEC_MUX_INTEL_PMC) += intel_pmc_mux.o obj-$(CONFIG_TYPEC_MUX_IT5205) += it5205.o obj-$(CONFIG_TYPEC_MUX_NB7VPQ904M) += nb7vpq904m.o +obj-$(CONFIG_TYPEC_MUX_PS883X) += ps883x.o obj-$(CONFIG_TYPEC_MUX_PTN36502) += ptn36502.o +obj-$(CONFIG_TYPEC_MUX_TUSB1046) += tusb1046.o obj-$(CONFIG_TYPEC_MUX_WCD939X_USBSS) += wcd939x-usbss.o diff --git a/drivers/usb/typec/mux/fsa4480.c b/drivers/usb/typec/mux/fsa4480.c index cb7cdf90cb0a..f71dba8bf07c 100644 --- a/drivers/usb/typec/mux/fsa4480.c +++ b/drivers/usb/typec/mux/fsa4480.c @@ -13,6 +13,10 @@ #include <linux/usb/typec_dp.h> #include <linux/usb/typec_mux.h> +#define FSA4480_DEVICE_ID 0x00 + #define FSA4480_DEVICE_ID_VENDOR_ID GENMASK(7, 6) + #define FSA4480_DEVICE_ID_VERSION_ID GENMASK(5, 3) + #define FSA4480_DEVICE_ID_REV_ID GENMASK(2, 0) #define FSA4480_SWITCH_ENABLE 0x04 #define FSA4480_SWITCH_SELECT 0x05 #define FSA4480_SWITCH_STATUS1 0x07 @@ -251,6 +255,7 @@ static int fsa4480_probe(struct i2c_client *client) struct typec_switch_desc sw_desc = { }; struct typec_mux_desc mux_desc = { }; struct fsa4480 *fsa; + int val = 0; int ret; fsa = devm_kzalloc(dev, sizeof(*fsa), GFP_KERNEL); @@ -268,6 +273,15 @@ static int fsa4480_probe(struct i2c_client *client) if (IS_ERR(fsa->regmap)) return dev_err_probe(dev, PTR_ERR(fsa->regmap), "failed to initialize regmap\n"); + ret = regmap_read(fsa->regmap, FSA4480_DEVICE_ID, &val); + if (ret) + return dev_err_probe(dev, -ENODEV, "FSA4480 not found\n"); + + dev_dbg(dev, "Found FSA4480 v%lu.%lu (Vendor ID = %lu)\n", + FIELD_GET(FSA4480_DEVICE_ID_VERSION_ID, val), + FIELD_GET(FSA4480_DEVICE_ID_REV_ID, val), + FIELD_GET(FSA4480_DEVICE_ID_VENDOR_ID, val)); + /* Safe mode */ fsa->cur_enable = FSA4480_ENABLE_DEVICE | FSA4480_ENABLE_USB; fsa->mode = TYPEC_STATE_SAFE; diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c index ad60fd4e8431..1834f1a2dd9d 100644 --- a/drivers/usb/typec/mux/gpio-sbu-mux.c +++ b/drivers/usb/typec/mux/gpio-sbu-mux.c @@ -48,10 +48,10 @@ static int gpio_sbu_switch_set(struct typec_switch_dev *sw, } if (enabled != sbu_mux->enabled) - gpiod_set_value(sbu_mux->enable_gpio, enabled); + gpiod_set_value_cansleep(sbu_mux->enable_gpio, enabled); if (swapped != sbu_mux->swapped) - gpiod_set_value(sbu_mux->select_gpio, swapped); + gpiod_set_value_cansleep(sbu_mux->select_gpio, swapped); sbu_mux->enabled = enabled; sbu_mux->swapped = swapped; @@ -66,6 +66,9 @@ static int gpio_sbu_mux_set(struct typec_mux_dev *mux, { struct gpio_sbu_mux *sbu_mux = typec_mux_get_drvdata(mux); + if (!sbu_mux->enable_gpio) + return -EOPNOTSUPP; + mutex_lock(&sbu_mux->lock); switch (state->mode) { @@ -82,7 +85,7 @@ static int gpio_sbu_mux_set(struct typec_mux_dev *mux, break; } - gpiod_set_value(sbu_mux->enable_gpio, sbu_mux->enabled); + gpiod_set_value_cansleep(sbu_mux->enable_gpio, sbu_mux->enabled); mutex_unlock(&sbu_mux->lock); @@ -102,7 +105,8 @@ static int gpio_sbu_mux_probe(struct platform_device *pdev) mutex_init(&sbu_mux->lock); - sbu_mux->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); + sbu_mux->enable_gpio = devm_gpiod_get_optional(dev, "enable", + GPIOD_OUT_LOW); if (IS_ERR(sbu_mux->enable_gpio)) return dev_err_probe(dev, PTR_ERR(sbu_mux->enable_gpio), "unable to acquire enable gpio\n"); @@ -141,7 +145,7 @@ static void gpio_sbu_mux_remove(struct platform_device *pdev) { struct gpio_sbu_mux *sbu_mux = platform_get_drvdata(pdev); - gpiod_set_value(sbu_mux->enable_gpio, 0); + gpiod_set_value_cansleep(sbu_mux->enable_gpio, 0); typec_mux_unregister(sbu_mux->mux); typec_switch_unregister(sbu_mux->sw); @@ -155,7 +159,7 @@ MODULE_DEVICE_TABLE(of, gpio_sbu_mux_match); static struct platform_driver gpio_sbu_mux_driver = { .probe = gpio_sbu_mux_probe, - .remove_new = gpio_sbu_mux_remove, + .remove = gpio_sbu_mux_remove, .driver = { .name = "gpio_sbu_mux", .of_match_table = gpio_sbu_mux_match, diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index 56989a0d0f43..65dda9183e6f 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -8,6 +8,7 @@ #include <linux/acpi.h> #include <linux/module.h> +#include <linux/platform_data/x86/intel_scu_ipc.h> #include <linux/platform_device.h> #include <linux/property.h> #include <linux/usb/pd.h> @@ -18,8 +19,6 @@ #include <linux/debugfs.h> #include <linux/usb.h> -#include <asm/intel_scu_ipc.h> - #define PMC_USBC_CMD 0xa7 /* Response status bits */ @@ -719,7 +718,7 @@ DEFINE_SHOW_ATTRIBUTE(port_iom_status); static void pmc_mux_port_debugfs_init(struct pmc_usb_port *port) { struct dentry *debugfs_dir; - char name[6]; + char name[8]; snprintf(name, sizeof(name), "port%d", port->usb3_port - 1); @@ -829,7 +828,7 @@ static struct platform_driver pmc_usb_driver = { .acpi_match_table = ACPI_PTR(pmc_usb_acpi_ids), }, .probe = pmc_usb_probe, - .remove_new = pmc_usb_remove, + .remove = pmc_usb_remove, }; static int __init pmc_usb_init(void) diff --git a/drivers/usb/typec/mux/nb7vpq904m.c b/drivers/usb/typec/mux/nb7vpq904m.c index b17826713753..b57b6c9c40fe 100644 --- a/drivers/usb/typec/mux/nb7vpq904m.c +++ b/drivers/usb/typec/mux/nb7vpq904m.c @@ -69,6 +69,7 @@ struct nb7vpq904m { bool swap_data_lanes; struct typec_switch *typec_switch; + struct typec_mux *typec_mux; struct mutex lock; /* protect non-concurrent retimer & switch */ @@ -275,6 +276,7 @@ static int nb7vpq904m_sw_set(struct typec_switch_dev *sw, enum typec_orientation static int nb7vpq904m_retimer_set(struct typec_retimer *retimer, struct typec_retimer_state *state) { struct nb7vpq904m *nb7 = typec_retimer_get_drvdata(retimer); + struct typec_mux_state mux_state; int ret = 0; mutex_lock(&nb7->lock); @@ -292,7 +294,14 @@ static int nb7vpq904m_retimer_set(struct typec_retimer *retimer, struct typec_re mutex_unlock(&nb7->lock); - return ret; + if (ret) + return ret; + + mux_state.alt = state->alt; + mux_state.data = state->data; + mux_state.mode = state->mode; + + return typec_mux_set(nb7->typec_mux, &mux_state); } static const struct regmap_config nb7_regmap = { @@ -321,46 +330,48 @@ static int nb7vpq904m_parse_data_lanes_mapping(struct nb7vpq904m *nb7) ep = of_graph_get_endpoint_by_regs(nb7->client->dev.of_node, 1, 0); - if (ep) { - ret = of_property_count_u32_elems(ep, "data-lanes"); - if (ret == -EINVAL) - /* Property isn't here, consider default mapping */ - goto out_done; - if (ret < 0) - goto out_error; - - if (ret != DATA_LANES_COUNT) { - dev_err(&nb7->client->dev, "expected 4 data lanes\n"); - ret = -EINVAL; - goto out_error; - } + if (!ep) + return 0; + + + ret = of_property_count_u32_elems(ep, "data-lanes"); + if (ret == -EINVAL) + /* Property isn't here, consider default mapping */ + goto out_done; + if (ret < 0) + goto out_error; - ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT); - if (ret) - goto out_error; + if (ret != DATA_LANES_COUNT) { + dev_err(&nb7->client->dev, "expected 4 data lanes\n"); + ret = -EINVAL; + goto out_error; + } - for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) { - for (j = 0; j < DATA_LANES_COUNT; j++) { - if (data_lanes[j] != supported_data_lane_mapping[i][j]) - break; - } + ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT); + if (ret) + goto out_error; - if (j == DATA_LANES_COUNT) + for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) { + for (j = 0; j < DATA_LANES_COUNT; j++) { + if (data_lanes[j] != supported_data_lane_mapping[i][j]) break; } - switch (i) { - case NORMAL_LANE_MAPPING: - break; - case INVERT_LANE_MAPPING: - nb7->swap_data_lanes = true; - dev_info(&nb7->client->dev, "using inverted data lanes mapping\n"); + if (j == DATA_LANES_COUNT) break; - default: - dev_err(&nb7->client->dev, "invalid data lanes mapping\n"); - ret = -EINVAL; - goto out_error; - } + } + + switch (i) { + case NORMAL_LANE_MAPPING: + break; + case INVERT_LANE_MAPPING: + nb7->swap_data_lanes = true; + dev_info(&nb7->client->dev, "using inverted data lanes mapping\n"); + break; + default: + dev_err(&nb7->client->dev, "invalid data lanes mapping\n"); + ret = -EINVAL; + goto out_error; } out_done: @@ -411,9 +422,16 @@ static int nb7vpq904m_probe(struct i2c_client *client) return dev_err_probe(dev, PTR_ERR(nb7->typec_switch), "failed to acquire orientation-switch\n"); + nb7->typec_mux = fwnode_typec_mux_get(dev->fwnode); + if (IS_ERR(nb7->typec_mux)) { + ret = dev_err_probe(dev, PTR_ERR(nb7->typec_mux), + "Failed to acquire mode-switch\n"); + goto err_switch_put; + } + ret = nb7vpq904m_parse_data_lanes_mapping(nb7); if (ret) - return ret; + goto err_mux_put; ret = regulator_enable(nb7->vcc_supply); if (ret) @@ -456,6 +474,12 @@ err_disable_gpio: gpiod_set_value(nb7->enable_gpio, 0); regulator_disable(nb7->vcc_supply); +err_mux_put: + typec_mux_put(nb7->typec_mux); + +err_switch_put: + typec_switch_put(nb7->typec_switch); + return ret; } @@ -469,6 +493,9 @@ static void nb7vpq904m_remove(struct i2c_client *client) gpiod_set_value(nb7->enable_gpio, 0); regulator_disable(nb7->vcc_supply); + + typec_mux_put(nb7->typec_mux); + typec_switch_put(nb7->typec_switch); } static const struct i2c_device_id nb7vpq904m_table[] = { diff --git a/drivers/usb/typec/mux/ps883x.c b/drivers/usb/typec/mux/ps883x.c new file mode 100644 index 000000000000..ad59babf7cce --- /dev/null +++ b/drivers/usb/typec/mux/ps883x.c @@ -0,0 +1,466 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Parade ps883x usb retimer driver + * + * Copyright (C) 2024 Linaro Ltd. + */ + +#include <drm/bridge/aux-bridge.h> +#include <linux/clk.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/usb/typec_altmode.h> +#include <linux/usb/typec_dp.h> +#include <linux/usb/typec_mux.h> +#include <linux/usb/typec_retimer.h> + +#define REG_USB_PORT_CONN_STATUS_0 0x00 + +#define CONN_STATUS_0_CONNECTION_PRESENT BIT(0) +#define CONN_STATUS_0_ORIENTATION_REVERSED BIT(1) +#define CONN_STATUS_0_USB_3_1_CONNECTED BIT(5) + +#define REG_USB_PORT_CONN_STATUS_1 0x01 + +#define CONN_STATUS_1_DP_CONNECTED BIT(0) +#define CONN_STATUS_1_DP_SINK_REQUESTED BIT(1) +#define CONN_STATUS_1_DP_PIN_ASSIGNMENT_C_D BIT(2) +#define CONN_STATUS_1_DP_HPD_LEVEL BIT(7) + +#define REG_USB_PORT_CONN_STATUS_2 0x02 + +struct ps883x_retimer { + struct i2c_client *client; + struct gpio_desc *reset_gpio; + struct regmap *regmap; + struct typec_switch_dev *sw; + struct typec_retimer *retimer; + struct clk *xo_clk; + struct regulator *vdd_supply; + struct regulator *vdd33_supply; + struct regulator *vdd33_cap_supply; + struct regulator *vddat_supply; + struct regulator *vddar_supply; + struct regulator *vddio_supply; + + struct typec_switch *typec_switch; + struct typec_mux *typec_mux; + + struct mutex lock; /* protect non-concurrent retimer & switch */ + + enum typec_orientation orientation; + unsigned long mode; + unsigned int svid; +}; + +static int ps883x_configure(struct ps883x_retimer *retimer, int cfg0, + int cfg1, int cfg2) +{ + struct device *dev = &retimer->client->dev; + int ret; + + ret = regmap_write(retimer->regmap, REG_USB_PORT_CONN_STATUS_0, cfg0); + if (ret) { + dev_err(dev, "failed to write conn_status_0: %d\n", ret); + return ret; + } + + ret = regmap_write(retimer->regmap, REG_USB_PORT_CONN_STATUS_1, cfg1); + if (ret) { + dev_err(dev, "failed to write conn_status_1: %d\n", ret); + return ret; + } + + ret = regmap_write(retimer->regmap, REG_USB_PORT_CONN_STATUS_2, cfg2); + if (ret) { + dev_err(dev, "failed to write conn_status_2: %d\n", ret); + return ret; + } + + return 0; +} + +static int ps883x_set(struct ps883x_retimer *retimer) +{ + int cfg0 = CONN_STATUS_0_CONNECTION_PRESENT; + int cfg1 = 0x00; + int cfg2 = 0x00; + + if (retimer->orientation == TYPEC_ORIENTATION_NONE || + retimer->mode == TYPEC_STATE_SAFE) { + return ps883x_configure(retimer, cfg0, cfg1, cfg2); + } + + if (retimer->mode != TYPEC_STATE_USB && retimer->svid != USB_TYPEC_DP_SID) + return -EINVAL; + + if (retimer->orientation == TYPEC_ORIENTATION_REVERSE) + cfg0 |= CONN_STATUS_0_ORIENTATION_REVERSED; + + switch (retimer->mode) { + case TYPEC_STATE_USB: + cfg0 |= CONN_STATUS_0_USB_3_1_CONNECTED; + break; + + case TYPEC_DP_STATE_C: + cfg1 = CONN_STATUS_1_DP_CONNECTED | + CONN_STATUS_1_DP_SINK_REQUESTED | + CONN_STATUS_1_DP_PIN_ASSIGNMENT_C_D | + CONN_STATUS_1_DP_HPD_LEVEL; + break; + + case TYPEC_DP_STATE_D: + cfg0 |= CONN_STATUS_0_USB_3_1_CONNECTED; + cfg1 = CONN_STATUS_1_DP_CONNECTED | + CONN_STATUS_1_DP_SINK_REQUESTED | + CONN_STATUS_1_DP_PIN_ASSIGNMENT_C_D | + CONN_STATUS_1_DP_HPD_LEVEL; + break; + + case TYPEC_DP_STATE_E: + cfg1 = CONN_STATUS_1_DP_CONNECTED | + CONN_STATUS_1_DP_HPD_LEVEL; + break; + + default: + return -EOPNOTSUPP; + } + + return ps883x_configure(retimer, cfg0, cfg1, cfg2); +} + +static int ps883x_sw_set(struct typec_switch_dev *sw, + enum typec_orientation orientation) +{ + struct ps883x_retimer *retimer = typec_switch_get_drvdata(sw); + int ret = 0; + + ret = typec_switch_set(retimer->typec_switch, orientation); + if (ret) + return ret; + + mutex_lock(&retimer->lock); + + if (retimer->orientation != orientation) { + retimer->orientation = orientation; + + ret = ps883x_set(retimer); + } + + mutex_unlock(&retimer->lock); + + return ret; +} + +static int ps883x_retimer_set(struct typec_retimer *rtmr, + struct typec_retimer_state *state) +{ + struct ps883x_retimer *retimer = typec_retimer_get_drvdata(rtmr); + struct typec_mux_state mux_state; + int ret = 0; + + mutex_lock(&retimer->lock); + + if (state->mode != retimer->mode) { + retimer->mode = state->mode; + + if (state->alt) + retimer->svid = state->alt->svid; + else + retimer->svid = 0; + + ret = ps883x_set(retimer); + } + + mutex_unlock(&retimer->lock); + + if (ret) + return ret; + + mux_state.alt = state->alt; + mux_state.data = state->data; + mux_state.mode = state->mode; + + return typec_mux_set(retimer->typec_mux, &mux_state); +} + +static int ps883x_enable_vregs(struct ps883x_retimer *retimer) +{ + struct device *dev = &retimer->client->dev; + int ret; + + ret = regulator_enable(retimer->vdd33_supply); + if (ret) { + dev_err(dev, "cannot enable VDD 3.3V regulator: %d\n", ret); + return ret; + } + + ret = regulator_enable(retimer->vdd33_cap_supply); + if (ret) { + dev_err(dev, "cannot enable VDD 3.3V CAP regulator: %d\n", ret); + goto err_vdd33_disable; + } + + usleep_range(4000, 10000); + + ret = regulator_enable(retimer->vdd_supply); + if (ret) { + dev_err(dev, "cannot enable VDD regulator: %d\n", ret); + goto err_vdd33_cap_disable; + } + + ret = regulator_enable(retimer->vddar_supply); + if (ret) { + dev_err(dev, "cannot enable VDD AR regulator: %d\n", ret); + goto err_vdd_disable; + } + + ret = regulator_enable(retimer->vddat_supply); + if (ret) { + dev_err(dev, "cannot enable VDD AT regulator: %d\n", ret); + goto err_vddar_disable; + } + + ret = regulator_enable(retimer->vddio_supply); + if (ret) { + dev_err(dev, "cannot enable VDD IO regulator: %d\n", ret); + goto err_vddat_disable; + } + + return 0; + +err_vddat_disable: + regulator_disable(retimer->vddat_supply); +err_vddar_disable: + regulator_disable(retimer->vddar_supply); +err_vdd_disable: + regulator_disable(retimer->vdd_supply); +err_vdd33_cap_disable: + regulator_disable(retimer->vdd33_cap_supply); +err_vdd33_disable: + regulator_disable(retimer->vdd33_supply); + + return ret; +} + +static void ps883x_disable_vregs(struct ps883x_retimer *retimer) +{ + regulator_disable(retimer->vddio_supply); + regulator_disable(retimer->vddat_supply); + regulator_disable(retimer->vddar_supply); + regulator_disable(retimer->vdd_supply); + regulator_disable(retimer->vdd33_cap_supply); + regulator_disable(retimer->vdd33_supply); +} + +static int ps883x_get_vregs(struct ps883x_retimer *retimer) +{ + struct device *dev = &retimer->client->dev; + + retimer->vdd_supply = devm_regulator_get(dev, "vdd"); + if (IS_ERR(retimer->vdd_supply)) + return dev_err_probe(dev, PTR_ERR(retimer->vdd_supply), + "failed to get VDD\n"); + + retimer->vdd33_supply = devm_regulator_get(dev, "vdd33"); + if (IS_ERR(retimer->vdd33_supply)) + return dev_err_probe(dev, PTR_ERR(retimer->vdd33_supply), + "failed to get VDD 3.3V\n"); + + retimer->vdd33_cap_supply = devm_regulator_get(dev, "vdd33-cap"); + if (IS_ERR(retimer->vdd33_cap_supply)) + return dev_err_probe(dev, PTR_ERR(retimer->vdd33_cap_supply), + "failed to get VDD CAP 3.3V\n"); + + retimer->vddat_supply = devm_regulator_get(dev, "vddat"); + if (IS_ERR(retimer->vddat_supply)) + return dev_err_probe(dev, PTR_ERR(retimer->vddat_supply), + "failed to get VDD AT\n"); + + retimer->vddar_supply = devm_regulator_get(dev, "vddar"); + if (IS_ERR(retimer->vddar_supply)) + return dev_err_probe(dev, PTR_ERR(retimer->vddar_supply), + "failed to get VDD AR\n"); + + retimer->vddio_supply = devm_regulator_get(dev, "vddio"); + if (IS_ERR(retimer->vddio_supply)) + return dev_err_probe(dev, PTR_ERR(retimer->vddio_supply), + "failed to get VDD IO\n"); + + return 0; +} + +static const struct regmap_config ps883x_retimer_regmap = { + .max_register = 0x1f, + .reg_bits = 8, + .val_bits = 8, +}; + +static int ps883x_retimer_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct typec_switch_desc sw_desc = { }; + struct typec_retimer_desc rtmr_desc = { }; + struct ps883x_retimer *retimer; + unsigned int val; + int ret; + + retimer = devm_kzalloc(dev, sizeof(*retimer), GFP_KERNEL); + if (!retimer) + return -ENOMEM; + + retimer->client = client; + + mutex_init(&retimer->lock); + + retimer->regmap = devm_regmap_init_i2c(client, &ps883x_retimer_regmap); + if (IS_ERR(retimer->regmap)) + return dev_err_probe(dev, PTR_ERR(retimer->regmap), + "failed to allocate register map\n"); + + ret = ps883x_get_vregs(retimer); + if (ret) + return ret; + + retimer->xo_clk = devm_clk_get(dev, NULL); + if (IS_ERR(retimer->xo_clk)) + return dev_err_probe(dev, PTR_ERR(retimer->xo_clk), + "failed to get xo clock\n"); + + retimer->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS); + if (IS_ERR(retimer->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(retimer->reset_gpio), + "failed to get reset gpio\n"); + + retimer->typec_switch = typec_switch_get(dev); + if (IS_ERR(retimer->typec_switch)) + return dev_err_probe(dev, PTR_ERR(retimer->typec_switch), + "failed to acquire orientation-switch\n"); + + retimer->typec_mux = typec_mux_get(dev); + if (IS_ERR(retimer->typec_mux)) { + ret = dev_err_probe(dev, PTR_ERR(retimer->typec_mux), + "failed to acquire mode-mux\n"); + goto err_switch_put; + } + + ret = drm_aux_bridge_register(dev); + if (ret) + goto err_mux_put; + + ret = ps883x_enable_vregs(retimer); + if (ret) + goto err_mux_put; + + ret = clk_prepare_enable(retimer->xo_clk); + if (ret) { + dev_err(dev, "failed to enable XO: %d\n", ret); + goto err_vregs_disable; + } + + /* skip resetting if already configured */ + if (regmap_test_bits(retimer->regmap, REG_USB_PORT_CONN_STATUS_0, + CONN_STATUS_0_CONNECTION_PRESENT) == 1) { + gpiod_direction_output(retimer->reset_gpio, 0); + } else { + gpiod_direction_output(retimer->reset_gpio, 1); + + /* VDD IO supply enable to reset release delay */ + usleep_range(4000, 14000); + + gpiod_set_value(retimer->reset_gpio, 0); + + /* firmware initialization delay */ + msleep(60); + + /* make sure device is accessible */ + ret = regmap_read(retimer->regmap, REG_USB_PORT_CONN_STATUS_0, + &val); + if (ret) { + dev_err(dev, "failed to read conn_status_0: %d\n", ret); + if (ret == -ENXIO) + ret = -EIO; + goto err_clk_disable; + } + } + + sw_desc.drvdata = retimer; + sw_desc.fwnode = dev_fwnode(dev); + sw_desc.set = ps883x_sw_set; + + retimer->sw = typec_switch_register(dev, &sw_desc); + if (IS_ERR(retimer->sw)) { + ret = PTR_ERR(retimer->sw); + dev_err(dev, "failed to register typec switch: %d\n", ret); + goto err_clk_disable; + } + + rtmr_desc.drvdata = retimer; + rtmr_desc.fwnode = dev_fwnode(dev); + rtmr_desc.set = ps883x_retimer_set; + + retimer->retimer = typec_retimer_register(dev, &rtmr_desc); + if (IS_ERR(retimer->retimer)) { + ret = PTR_ERR(retimer->retimer); + dev_err(dev, "failed to register typec retimer: %d\n", ret); + goto err_switch_unregister; + } + + return 0; + +err_switch_unregister: + typec_switch_unregister(retimer->sw); +err_clk_disable: + clk_disable_unprepare(retimer->xo_clk); +err_vregs_disable: + gpiod_set_value(retimer->reset_gpio, 1); + ps883x_disable_vregs(retimer); +err_mux_put: + typec_mux_put(retimer->typec_mux); +err_switch_put: + typec_switch_put(retimer->typec_switch); + + return ret; +} + +static void ps883x_retimer_remove(struct i2c_client *client) +{ + struct ps883x_retimer *retimer = i2c_get_clientdata(client); + + typec_retimer_unregister(retimer->retimer); + typec_switch_unregister(retimer->sw); + + gpiod_set_value(retimer->reset_gpio, 1); + + clk_disable_unprepare(retimer->xo_clk); + + ps883x_disable_vregs(retimer); + + typec_mux_put(retimer->typec_mux); + typec_switch_put(retimer->typec_switch); +} + +static const struct of_device_id ps883x_retimer_of_table[] = { + { .compatible = "parade,ps8830" }, + { } +}; +MODULE_DEVICE_TABLE(of, ps883x_retimer_of_table); + +static struct i2c_driver ps883x_retimer_driver = { + .driver = { + .name = "ps883x_retimer", + .of_match_table = ps883x_retimer_of_table, + }, + .probe = ps883x_retimer_probe, + .remove = ps883x_retimer_remove, +}; + +module_i2c_driver(ps883x_retimer_driver); + +MODULE_DESCRIPTION("Parade ps883x Type-C Retimer driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/typec/mux/ptn36502.c b/drivers/usb/typec/mux/ptn36502.c index 72ae38a1b2be..129d9d24b932 100644 --- a/drivers/usb/typec/mux/ptn36502.c +++ b/drivers/usb/typec/mux/ptn36502.c @@ -8,7 +8,7 @@ * Copyright (C) 2023 Dmitry Baryshkov <dmitry.baryshkov@linaro.org> */ -#include <drm/drm_bridge.h> +#include <drm/bridge/aux-bridge.h> #include <linux/bitfield.h> #include <linux/i2c.h> #include <linux/kernel.h> @@ -67,8 +67,7 @@ struct ptn36502 { struct typec_retimer *retimer; struct typec_switch *typec_switch; - - struct drm_bridge bridge; + struct typec_mux *typec_mux; struct mutex lock; /* protect non-concurrent retimer & switch */ @@ -237,6 +236,7 @@ static int ptn36502_sw_set(struct typec_switch_dev *sw, enum typec_orientation o static int ptn36502_retimer_set(struct typec_retimer *retimer, struct typec_retimer_state *state) { struct ptn36502 *ptn = typec_retimer_get_drvdata(retimer); + struct typec_mux_state mux_state; int ret = 0; mutex_lock(&ptn->lock); @@ -254,7 +254,14 @@ static int ptn36502_retimer_set(struct typec_retimer *retimer, struct typec_reti mutex_unlock(&ptn->lock); - return ret; + if (ret) + return ret; + + mux_state.alt = state->alt; + mux_state.data = state->data; + mux_state.mode = state->mode; + + return typec_mux_set(ptn->typec_mux, &mux_state); } static int ptn36502_detect(struct ptn36502 *ptn) @@ -283,44 +290,6 @@ static int ptn36502_detect(struct ptn36502 *ptn) return 0; } -#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_DRM_PANEL_BRIDGE) -static int ptn36502_bridge_attach(struct drm_bridge *bridge, - enum drm_bridge_attach_flags flags) -{ - struct ptn36502 *ptn = container_of(bridge, struct ptn36502, bridge); - struct drm_bridge *next_bridge; - - if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) - return -EINVAL; - - next_bridge = devm_drm_of_get_bridge(&ptn->client->dev, ptn->client->dev.of_node, 0, 0); - if (IS_ERR(next_bridge)) { - dev_err(&ptn->client->dev, "failed to acquire drm_bridge: %pe\n", next_bridge); - return PTR_ERR(next_bridge); - } - - return drm_bridge_attach(bridge->encoder, next_bridge, bridge, - DRM_BRIDGE_ATTACH_NO_CONNECTOR); -} - -static const struct drm_bridge_funcs ptn36502_bridge_funcs = { - .attach = ptn36502_bridge_attach, -}; - -static int ptn36502_register_bridge(struct ptn36502 *ptn) -{ - ptn->bridge.funcs = &ptn36502_bridge_funcs; - ptn->bridge.of_node = ptn->client->dev.of_node; - - return devm_drm_bridge_add(&ptn->client->dev, &ptn->bridge); -} -#else -static int ptn36502_register_bridge(struct ptn36502 *ptn) -{ - return 0; -} -#endif - static const struct regmap_config ptn36502_regmap = { .max_register = 0x0d, .reg_bits = 8, @@ -361,15 +330,24 @@ static int ptn36502_probe(struct i2c_client *client) return dev_err_probe(dev, PTR_ERR(ptn->typec_switch), "Failed to acquire orientation-switch\n"); + ptn->typec_mux = fwnode_typec_mux_get(dev->fwnode); + if (IS_ERR(ptn->typec_mux)) { + ret = dev_err_probe(dev, PTR_ERR(ptn->typec_mux), + "Failed to acquire mode-switch\n"); + goto err_switch_put; + } + ret = regulator_enable(ptn->vdd18_supply); - if (ret) - return dev_err_probe(dev, ret, "Failed to enable vdd18\n"); + if (ret) { + ret = dev_err_probe(dev, ret, "Failed to enable vdd18\n"); + goto err_mux_put; + } ret = ptn36502_detect(ptn); if (ret) goto err_disable_regulator; - ret = ptn36502_register_bridge(ptn); + ret = drm_aux_bridge_register(dev); if (ret) goto err_disable_regulator; @@ -403,6 +381,12 @@ err_switch_unregister: err_disable_regulator: regulator_disable(ptn->vdd18_supply); +err_mux_put: + typec_mux_put(ptn->typec_mux); + +err_switch_put: + typec_switch_put(ptn->typec_switch); + return ret; } @@ -414,6 +398,9 @@ static void ptn36502_remove(struct i2c_client *client) typec_switch_unregister(ptn->sw); regulator_disable(ptn->vdd18_supply); + + typec_mux_put(ptn->typec_mux); + typec_switch_put(ptn->typec_switch); } static const struct i2c_device_id ptn36502_table[] = { diff --git a/drivers/usb/typec/mux/tusb1046.c b/drivers/usb/typec/mux/tusb1046.c new file mode 100644 index 000000000000..b4f45c217b59 --- /dev/null +++ b/drivers/usb/typec/mux/tusb1046.c @@ -0,0 +1,196 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Driver for the TUSB1046-DCI USB Type-C crosspoint switch + * + * Copyright (C) 2024 Bootlin + */ + +#include <linux/bits.h> +#include <linux/i2c.h> +#include <linux/usb/typec_mux.h> +#include <linux/usb/typec_dp.h> +#include <linux/usb/typec_altmode.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/err.h> +#include <linux/of_device.h> +#include <linux/device.h> +#include <linux/mutex.h> + +#define TUSB1046_REG_GENERAL 0xa + +/* General register bits */ +#define TUSB1046_GENERAL_FLIPSEL BIT(2) +#define TUSB1046_GENERAL_CTLSEL GENMASK(1, 0) + +/* Mux modes */ +#define TUSB1046_CTLSEL_DISABLED 0x0 +#define TUSB1046_CTLSEL_USB3 0x1 +#define TUSB1046_CTLSEL_4LANE_DP 0x2 +#define TUSB1046_CTLSEL_USB3_AND_2LANE_DP 0x3 + +struct tusb1046_priv { + struct i2c_client *client; + struct typec_switch_dev *sw; + struct typec_mux_dev *mux; + + /* Lock General register during accesses */ + struct mutex general_reg_lock; +}; + +static int tusb1046_mux_set(struct typec_mux_dev *mux, + struct typec_mux_state *state) +{ + struct tusb1046_priv *priv = typec_mux_get_drvdata(mux); + struct i2c_client *client = priv->client; + struct device *dev = &client->dev; + int mode, val, ret = 0; + + if (state->mode >= TYPEC_STATE_MODAL && + state->alt->svid != USB_TYPEC_DP_SID) + return -EINVAL; + + dev_dbg(dev, "mux mode requested: %lu\n", state->mode); + + mutex_lock(&priv->general_reg_lock); + + val = i2c_smbus_read_byte_data(client, TUSB1046_REG_GENERAL); + if (val < 0) { + dev_err(dev, "failed to read ctlsel status, err %d\n", val); + ret = val; + goto out_unlock; + } + + switch (state->mode) { + case TYPEC_STATE_USB: + mode = TUSB1046_CTLSEL_USB3; + break; + case TYPEC_DP_STATE_C: + case TYPEC_DP_STATE_E: + mode = TUSB1046_CTLSEL_4LANE_DP; + break; + case TYPEC_DP_STATE_D: + mode = TUSB1046_CTLSEL_USB3_AND_2LANE_DP; + break; + case TYPEC_STATE_SAFE: + default: + mode = TUSB1046_CTLSEL_DISABLED; + break; + } + + val &= ~TUSB1046_GENERAL_CTLSEL; + val |= mode; + + ret = i2c_smbus_write_byte_data(client, TUSB1046_REG_GENERAL, val); + +out_unlock: + mutex_unlock(&priv->general_reg_lock); + return ret; +} + +static int tusb1046_switch_set(struct typec_switch_dev *sw, + enum typec_orientation orientation) +{ + struct tusb1046_priv *priv = typec_switch_get_drvdata(sw); + struct i2c_client *client = priv->client; + struct device *dev = &client->dev; + int val, ret = 0; + + dev_dbg(dev, "setting USB3.0 lane flip for orientation %d\n", orientation); + + mutex_lock(&priv->general_reg_lock); + + val = i2c_smbus_read_byte_data(client, TUSB1046_REG_GENERAL); + if (val < 0) { + dev_err(dev, "failed to read flipsel status, err %d\n", val); + ret = val; + goto out_unlock; + } + + if (orientation == TYPEC_ORIENTATION_REVERSE) + val |= TUSB1046_GENERAL_FLIPSEL; + else + val &= ~TUSB1046_GENERAL_FLIPSEL; + + ret = i2c_smbus_write_byte_data(client, TUSB1046_REG_GENERAL, val); + +out_unlock: + mutex_unlock(&priv->general_reg_lock); + return ret; +} + +static int tusb1046_i2c_probe(struct i2c_client *client) +{ + struct typec_switch_desc sw_desc = { }; + struct typec_mux_desc mux_desc = { }; + struct device *dev = &client->dev; + struct tusb1046_priv *priv; + int ret = 0; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return dev_err_probe(dev, -ENOMEM, "failed to allocate driver data\n"); + + priv->client = client; + + mutex_init(&priv->general_reg_lock); + + sw_desc.drvdata = priv; + sw_desc.fwnode = dev_fwnode(dev); + sw_desc.set = tusb1046_switch_set; + + priv->sw = typec_switch_register(dev, &sw_desc); + if (IS_ERR(priv->sw)) { + ret = dev_err_probe(dev, PTR_ERR(priv->sw), "failed to register type-c switch\n"); + goto err_destroy_mutex; + } + + mux_desc.drvdata = priv; + mux_desc.fwnode = dev_fwnode(dev); + mux_desc.set = tusb1046_mux_set; + + priv->mux = typec_mux_register(dev, &mux_desc); + if (IS_ERR(priv->mux)) { + ret = dev_err_probe(dev, PTR_ERR(priv->mux), "failed to register type-c mux\n"); + goto err_unregister_switch; + } + + i2c_set_clientdata(client, priv); + + return 0; + +err_unregister_switch: + typec_switch_unregister(priv->sw); +err_destroy_mutex: + mutex_destroy(&priv->general_reg_lock); + return ret; +} + +static void tusb1046_i2c_remove(struct i2c_client *client) +{ + struct tusb1046_priv *priv = i2c_get_clientdata(client); + + typec_switch_unregister(priv->sw); + typec_mux_unregister(priv->mux); + mutex_destroy(&priv->general_reg_lock); +} + +static const struct of_device_id tusb1046_match_table[] = { + {.compatible = "ti,tusb1046"}, + {}, +}; + +static struct i2c_driver tusb1046_driver = { + .driver = { + .name = "tusb1046", + .of_match_table = tusb1046_match_table, + }, + .probe = tusb1046_i2c_probe, + .remove = tusb1046_i2c_remove, +}; + +module_i2c_driver(tusb1046_driver); + +MODULE_DESCRIPTION("TUSB1046 USB Type-C switch driver"); +MODULE_AUTHOR("Romain Gantois <romain.gantois@bootlin.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/typec/rt1719.c b/drivers/usb/typec/rt1719.c index be02d420920e..0b0c23a0b014 100644 --- a/drivers/usb/typec/rt1719.c +++ b/drivers/usb/typec/rt1719.c @@ -109,12 +109,6 @@ struct rt1719_data { u16 conn_stat; }; -static const enum power_supply_usb_type rt1719_psy_usb_types[] = { - POWER_SUPPLY_USB_TYPE_C, - POWER_SUPPLY_USB_TYPE_PD, - POWER_SUPPLY_USB_TYPE_PD_PPS -}; - static const enum power_supply_property rt1719_psy_properties[] = { POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_USB_TYPE, @@ -572,8 +566,9 @@ static int devm_rt1719_psy_register(struct rt1719_data *data) data->psy_desc.name = psy_name; data->psy_desc.type = POWER_SUPPLY_TYPE_USB; - data->psy_desc.usb_types = rt1719_psy_usb_types; - data->psy_desc.num_usb_types = ARRAY_SIZE(rt1719_psy_usb_types); + data->psy_desc.usb_types = BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD) | + BIT(POWER_SUPPLY_USB_TYPE_PD_PPS); data->psy_desc.properties = rt1719_psy_properties; data->psy_desc.num_properties = ARRAY_SIZE(rt1719_psy_properties); data->psy_desc.get_property = rt1719_psy_get_property; diff --git a/drivers/usb/typec/stusb160x.c b/drivers/usb/typec/stusb160x.c index 3ab118df1bd4..6d85b25b40bc 100644 --- a/drivers/usb/typec/stusb160x.c +++ b/drivers/usb/typec/stusb160x.c @@ -234,7 +234,7 @@ static const struct regmap_config stusb1600_regmap_config = { .readable_reg = stusb160x_reg_readable, .volatile_reg = stusb160x_reg_volatile, .precious_reg = stusb160x_reg_precious, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, }; static bool stusb160x_get_vconn(struct stusb160x *chip) @@ -633,9 +633,8 @@ MODULE_DEVICE_TABLE(of, stusb160x_of_match); static int stusb160x_probe(struct i2c_client *client) { + const struct regmap_config *regmap_config; struct stusb160x *chip; - const struct of_device_id *match; - struct regmap_config *regmap_config; struct fwnode_handle *fwnode; int ret; @@ -645,8 +644,8 @@ static int stusb160x_probe(struct i2c_client *client) i2c_set_clientdata(client, chip); - match = i2c_of_match_device(stusb160x_of_match, client); - regmap_config = (struct regmap_config *)match->data; + regmap_config = i2c_get_match_data(client); + chip->regmap = devm_regmap_init_i2c(client, regmap_config); if (IS_ERR(chip->regmap)) { ret = PTR_ERR(chip->regmap); diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c index ef18a448b740..f15c63d3a8f4 100644 --- a/drivers/usb/typec/tcpm/fusb302.c +++ b/drivers/usb/typec/tcpm/fusb302.c @@ -24,6 +24,7 @@ #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/string.h> +#include <linux/string_choices.h> #include <linux/types.h> #include <linux/usb.h> #include <linux/usb/typec.h> @@ -733,7 +734,7 @@ static int tcpm_set_vconn(struct tcpc_dev *dev, bool on) mutex_lock(&chip->lock); if (chip->vconn_on == on) { - fusb302_log(chip, "vconn is already %s", on ? "On" : "Off"); + fusb302_log(chip, "vconn is already %s", str_on_off(on)); goto done; } if (on) { @@ -746,7 +747,7 @@ static int tcpm_set_vconn(struct tcpc_dev *dev, bool on) if (ret < 0) goto done; chip->vconn_on = on; - fusb302_log(chip, "vconn := %s", on ? "On" : "Off"); + fusb302_log(chip, "vconn := %s", str_on_off(on)); done: mutex_unlock(&chip->lock); @@ -761,7 +762,7 @@ static int tcpm_set_vbus(struct tcpc_dev *dev, bool on, bool charge) mutex_lock(&chip->lock); if (chip->vbus_on == on) { - fusb302_log(chip, "vbus is already %s", on ? "On" : "Off"); + fusb302_log(chip, "vbus is already %s", str_on_off(on)); } else { if (on) ret = regulator_enable(chip->vbus); @@ -769,15 +770,14 @@ static int tcpm_set_vbus(struct tcpc_dev *dev, bool on, bool charge) ret = regulator_disable(chip->vbus); if (ret < 0) { fusb302_log(chip, "cannot %s vbus regulator, ret=%d", - on ? "enable" : "disable", ret); + str_enable_disable(on), ret); goto done; } chip->vbus_on = on; - fusb302_log(chip, "vbus := %s", on ? "On" : "Off"); + fusb302_log(chip, "vbus := %s", str_on_off(on)); } if (chip->charge_on == charge) - fusb302_log(chip, "charge is already %s", - charge ? "On" : "Off"); + fusb302_log(chip, "charge is already %s", str_on_off(charge)); else chip->charge_on = charge; @@ -854,16 +854,16 @@ static int tcpm_set_pd_rx(struct tcpc_dev *dev, bool on) ret = fusb302_pd_set_auto_goodcrc(chip, on); if (ret < 0) { fusb302_log(chip, "cannot turn %s auto GCRC, ret=%d", - on ? "on" : "off", ret); + str_on_off(on), ret); goto done; } ret = fusb302_pd_set_interrupts(chip, on); if (ret < 0) { fusb302_log(chip, "cannot turn %s pd interrupts, ret=%d", - on ? "on" : "off", ret); + str_on_off(on), ret); goto done; } - fusb302_log(chip, "pd := %s", on ? "on" : "off"); + fusb302_log(chip, "pd := %s", str_on_off(on)); done: mutex_unlock(&chip->lock); @@ -1531,7 +1531,7 @@ static void fusb302_irq_work(struct work_struct *work) if (interrupt & FUSB_REG_INTERRUPT_VBUSOK) { vbus_present = !!(status0 & FUSB_REG_STATUS0_VBUSOK); fusb302_log(chip, "IRQ: VBUS_OK, vbus=%s", - vbus_present ? "On" : "Off"); + str_on_off(vbus_present)); if (vbus_present != chip->vbus_present) { chip->vbus_present = vbus_present; tcpm_vbus_change(chip->tcpm_port); @@ -1562,7 +1562,7 @@ static void fusb302_irq_work(struct work_struct *work) if ((interrupt & FUSB_REG_INTERRUPT_COMP_CHNG) && intr_comp_chng) { comp_result = !!(status0 & FUSB_REG_STATUS0_COMP); fusb302_log(chip, "IRQ: COMP_CHNG, comp=%s", - comp_result ? "true" : "false"); + str_true_false(comp_result)); if (comp_result) { /* cc level > Rd_threshold, detach */ chip->cc1 = TYPEC_CC_OPEN; @@ -1820,8 +1820,8 @@ static const struct of_device_id fusb302_dt_match[] __maybe_unused = { MODULE_DEVICE_TABLE(of, fusb302_dt_match); static const struct i2c_device_id fusb302_i2c_device_id[] = { - {"typec_fusb302", 0}, - {}, + { "typec_fusb302" }, + {} }; MODULE_DEVICE_TABLE(i2c, fusb302_i2c_device_id); diff --git a/drivers/usb/typec/tcpm/maxim_contaminant.c b/drivers/usb/typec/tcpm/maxim_contaminant.c index f8504a90da26..0cdda06592fd 100644 --- a/drivers/usb/typec/tcpm/maxim_contaminant.c +++ b/drivers/usb/typec/tcpm/maxim_contaminant.c @@ -5,6 +5,7 @@ * USB-C module to reduce wakeups due to contaminants. */ +#include <linux/bitfield.h> #include <linux/device.h> #include <linux/irqreturn.h> #include <linux/module.h> @@ -45,14 +46,9 @@ enum fladc_select { #define READ1_SLEEP_MS 10 #define READ2_SLEEP_MS 5 -#define STATUS_CHECK(reg, mask, val) (((reg) & (mask)) == (val)) - #define IS_CC_OPEN(cc_status) \ - (STATUS_CHECK((cc_status), TCPC_CC_STATUS_CC1_MASK << TCPC_CC_STATUS_CC1_SHIFT, \ - TCPC_CC_STATE_SRC_OPEN) && STATUS_CHECK((cc_status), \ - TCPC_CC_STATUS_CC2_MASK << \ - TCPC_CC_STATUS_CC2_SHIFT, \ - TCPC_CC_STATE_SRC_OPEN)) + (FIELD_GET(TCPC_CC_STATUS_CC1, cc_status) == TCPC_CC_STATE_SRC_OPEN \ + && FIELD_GET(TCPC_CC_STATUS_CC2, cc_status) == TCPC_CC_STATE_SRC_OPEN) static int max_contaminant_adc_to_mv(struct max_tcpci_chip *chip, enum fladc_select channel, bool ua_src, u8 fladc) @@ -80,8 +76,8 @@ static int max_contaminant_read_adc_mv(struct max_tcpci_chip *chip, enum fladc_s int ret; /* Channel & scale select */ - ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL_MASK, - channel << ADC_CHANNEL_OFFSET); + ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL, + FIELD_PREP(ADCINSEL, channel)); if (ret < 0) return ret; @@ -100,7 +96,8 @@ static int max_contaminant_read_adc_mv(struct max_tcpci_chip *chip, enum fladc_s if (ret < 0) return ret; - ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL_MASK, 0); + ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL, + FIELD_PREP(ADCINSEL, 0)); if (ret < 0) return ret; @@ -120,13 +117,14 @@ static int max_contaminant_read_resistance_kohm(struct max_tcpci_chip *chip, if (channel == CC1_SCALE1 || channel == CC2_SCALE1 || channel == CC1_SCALE2 || channel == CC2_SCALE2) { /* Enable 1uA current source */ - ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCLPMODESEL_MASK, - ULTRA_LOW_POWER_MODE); + ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCLPMODESEL, + FIELD_PREP(CCLPMODESEL, ULTRA_LOW_POWER_MODE)); if (ret < 0) return ret; /* Enable 1uA current source */ - ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCRPCTRL_MASK, UA_1_SRC); + ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCRPCTRL, + FIELD_PREP(CCRPCTRL, UA_1_SRC)); if (ret < 0) return ret; @@ -137,7 +135,7 @@ static int max_contaminant_read_resistance_kohm(struct max_tcpci_chip *chip, mv = max_contaminant_read_adc_mv(chip, channel, sleep_msec, raw, true); if (mv < 0) - return ret; + return mv; /* OVP enable */ ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCOVPDIS, 0); @@ -159,7 +157,7 @@ static int max_contaminant_read_resistance_kohm(struct max_tcpci_chip *chip, mv = max_contaminant_read_adc_mv(chip, channel, sleep_msec, raw, true); if (mv < 0) - return ret; + return mv; /* Disable current source */ ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, SBURPCTRL, 0); if (ret < 0) @@ -180,7 +178,8 @@ static int max_contaminant_read_comparators(struct max_tcpci_chip *chip, u8 *ven int ret; /* Enable 80uA source */ - ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCRPCTRL_MASK, UA_80_SRC); + ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCRPCTRL, + FIELD_PREP(CCRPCTRL, UA_80_SRC)); if (ret < 0) return ret; @@ -213,7 +212,8 @@ static int max_contaminant_read_comparators(struct max_tcpci_chip *chip, u8 *ven if (ret < 0) return ret; - ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCRPCTRL_MASK, 0); + ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCRPCTRL, + FIELD_PREP(CCRPCTRL, 0)); if (ret < 0) return ret; @@ -284,10 +284,11 @@ static int max_contaminant_enable_dry_detection(struct max_tcpci_chip *chip) u8 temp; int ret; - ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL3, CCWTRDEB_MASK | CCWTRSEL_MASK - | WTRCYCLE_MASK, CCWTRDEB_1MS << CCWTRDEB_SHIFT | - CCWTRSEL_1V << CCWTRSEL_SHIFT | WTRCYCLE_4_8_S << - WTRCYCLE_SHIFT); + ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL3, + CCWTRDEB | CCWTRSEL | WTRCYCLE, + FIELD_PREP(CCWTRDEB, CCWTRDEB_1MS) + | FIELD_PREP(CCWTRSEL, CCWTRSEL_1V) + | FIELD_PREP(WTRCYCLE, WTRCYCLE_4_8_S)); if (ret < 0) return ret; @@ -302,8 +303,9 @@ static int max_contaminant_enable_dry_detection(struct max_tcpci_chip *chip) if (ret < 0) return ret; - ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCLPMODESEL_MASK, - ULTRA_LOW_POWER_MODE); + ret = regmap_update_bits(regmap, TCPC_VENDOR_CC_CTRL2, CCLPMODESEL, + FIELD_PREP(CCLPMODESEL, + ULTRA_LOW_POWER_MODE)); if (ret < 0) return ret; ret = max_tcpci_read8(chip, TCPC_VENDOR_CC_CTRL2, &temp); @@ -322,11 +324,14 @@ static int max_contaminant_enable_dry_detection(struct max_tcpci_chip *chip) return 0; } -bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce) +bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce, + bool *cc_handled) { u8 cc_status, pwr_cntl; int ret; + *cc_handled = true; + ret = max_tcpci_read8(chip, TCPC_CC_STATUS, &cc_status); if (ret < 0) return false; @@ -368,9 +373,8 @@ bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect return true; } } - return false; } else if (chip->contaminant_state == DETECTED) { - if (STATUS_CHECK(cc_status, TCPC_CC_STATUS_TOGGLING, 0)) { + if (!(cc_status & TCPC_CC_STATUS_TOGGLING)) { chip->contaminant_state = max_contaminant_detect_contaminant(chip); if (chip->contaminant_state == DETECTED) { max_contaminant_enable_dry_detection(chip); @@ -379,6 +383,7 @@ bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect } } + *cc_handled = false; return false; } diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c index e48412cdcb0f..3766790c1548 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c @@ -41,7 +41,7 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; const struct pmic_typec_resources *res; struct regmap *regmap; - struct device *bridge_dev; + struct auxiliary_device *bridge_dev; u32 base; int ret; @@ -92,9 +92,11 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) if (!tcpm->tcpc.fwnode) return -EINVAL; - bridge_dev = drm_dp_hpd_bridge_register(tcpm->dev, to_of_node(tcpm->tcpc.fwnode)); - if (IS_ERR(bridge_dev)) - return PTR_ERR(bridge_dev); + bridge_dev = devm_drm_dp_hpd_bridge_alloc(tcpm->dev, to_of_node(tcpm->tcpc.fwnode)); + if (IS_ERR(bridge_dev)) { + ret = PTR_ERR(bridge_dev); + goto fwnode_remove; + } tcpm->tcpm_port = tcpm_register_port(tcpm->dev, &tcpm->tcpc); if (IS_ERR(tcpm->tcpm_port)) { @@ -104,16 +106,26 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) ret = tcpm->port_start(tcpm, tcpm->tcpm_port); if (ret) - goto fwnode_remove; + goto port_unregister; ret = tcpm->pdphy_start(tcpm, tcpm->tcpm_port); if (ret) - goto fwnode_remove; + goto port_stop; + + ret = devm_drm_dp_hpd_bridge_add(tcpm->dev, bridge_dev); + if (ret) + goto pdphy_stop; return 0; +pdphy_stop: + tcpm->pdphy_stop(tcpm); +port_stop: + tcpm->port_stop(tcpm); +port_unregister: + tcpm_unregister_port(tcpm->tcpm_port); fwnode_remove: - fwnode_remove_software_node(tcpm->tcpc.fwnode); + fwnode_handle_put(tcpm->tcpc.fwnode); return ret; } @@ -125,7 +137,7 @@ static void qcom_pmic_typec_remove(struct platform_device *pdev) tcpm->pdphy_stop(tcpm); tcpm->port_stop(tcpm); tcpm_unregister_port(tcpm->tcpm_port); - fwnode_remove_software_node(tcpm->tcpc.fwnode); + fwnode_handle_put(tcpm->tcpc.fwnode); } static const struct pmic_typec_resources pm8150b_typec_res = { @@ -151,7 +163,7 @@ static struct platform_driver qcom_pmic_typec_driver = { .of_match_table = qcom_pmic_typec_table, }, .probe = qcom_pmic_typec_probe, - .remove_new = qcom_pmic_typec_remove, + .remove = qcom_pmic_typec_remove, }; module_platform_driver(qcom_pmic_typec_driver); diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c index 6560f4fc98d5..18303b34594b 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c @@ -12,6 +12,7 @@ #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/usb/pd.h> #include <linux/usb/tcpm.h> #include "qcom_pmic_typec.h" @@ -227,6 +228,10 @@ qcom_pmic_typec_pdphy_pd_transmit_payload(struct pmic_typec_pdphy *pmic_typec_pd spin_lock_irqsave(&pmic_typec_pdphy->lock, flags); + hdr_len = sizeof(msg->header); + txbuf_len = pd_header_cnt_le(msg->header) * 4; + txsize_len = hdr_len + txbuf_len - 1; + ret = regmap_read(pmic_typec_pdphy->regmap, pmic_typec_pdphy->base + USB_PDPHY_RX_ACKNOWLEDGE_REG, &val); @@ -244,10 +249,6 @@ qcom_pmic_typec_pdphy_pd_transmit_payload(struct pmic_typec_pdphy *pmic_typec_pd if (ret) goto done; - hdr_len = sizeof(msg->header); - txbuf_len = pd_header_cnt_le(msg->header) * 4; - txsize_len = hdr_len + txbuf_len - 1; - /* Write message header sizeof(u16) to USB_PDPHY_TX_BUFFER_HDR_REG */ ret = regmap_bulk_write(pmic_typec_pdphy->regmap, pmic_typec_pdphy->base + USB_PDPHY_TX_BUFFER_HDR_REG, @@ -418,7 +419,7 @@ static int qcom_pmic_typec_pdphy_set_pd_rx(struct tcpc_dev *tcpc, bool on) spin_unlock_irqrestore(&pmic_typec_pdphy->lock, flags); - dev_dbg(pmic_typec_pdphy->dev, "set_pd_rx: %s\n", on ? "on" : "off"); + dev_dbg(pmic_typec_pdphy->dev, "set_pd_rx: %s\n", str_on_off(on)); return ret; } @@ -475,10 +476,8 @@ static int qcom_pmic_typec_pdphy_enable(struct pmic_typec_pdphy *pmic_typec_pdph qcom_pmic_typec_pdphy_reset_off(pmic_typec_pdphy); done: - if (ret) { - regulator_disable(pmic_typec_pdphy->vdd_pdphy); + if (ret) dev_err(dev, "pdphy_enable fail %d\n", ret); - } return ret; } @@ -524,12 +523,17 @@ static int qcom_pmic_typec_pdphy_start(struct pmic_typec *tcpm, ret = pmic_typec_pdphy_reset(pmic_typec_pdphy); if (ret) - return ret; + goto err_disable_vdd_pdhy; for (i = 0; i < pmic_typec_pdphy->nr_irqs; i++) enable_irq(pmic_typec_pdphy->irq_data[i].irq); return 0; + +err_disable_vdd_pdhy: + regulator_disable(pmic_typec_pdphy->vdd_pdphy); + + return ret; } static void qcom_pmic_typec_pdphy_stop(struct pmic_typec *tcpm) diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c index df79059cda67..8fac171778da 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c @@ -12,6 +12,7 @@ #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/usb/pd.h> #include <linux/usb/tcpm.h> #include "qcom_pmic_typec.h" @@ -38,7 +39,7 @@ static int qcom_pmic_typec_pdphy_stub_set_pd_rx(struct tcpc_dev *tcpc, bool on) struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); struct device *dev = tcpm->dev; - dev_dbg(dev, "set_pd_rx: %s\n", on ? "on" : "off"); + dev_dbg(dev, "set_pd_rx: %s\n", str_on_off(on)); return 0; } diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c index a747baa29784..4fc83dcfae64 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c @@ -13,6 +13,7 @@ #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/usb/tcpm.h> #include <linux/usb/typec_mux.h> #include <linux/workqueue.h> @@ -432,7 +433,6 @@ static int qcom_pmic_typec_port_get_cc(struct tcpc_dev *tcpc, val = TYPEC_CC_RP_DEF; break; } - val = TYPEC_CC_RP_DEF; } if (misc & CC_ORIENTATION) @@ -563,7 +563,8 @@ done: spin_unlock_irqrestore(&pmic_typec_port->lock, flags); dev_dbg(dev, "set_vconn: orientation %d control 0x%08x state %s cc %s vconn %s\n", - orientation, value, on ? "on" : "off", misc_to_vconn(misc), misc_to_cc(misc)); + orientation, value, str_on_off(on), misc_to_vconn(misc), + misc_to_cc(misc)); return ret; } diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index c962014bba4e..19ab6647af70 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -5,6 +5,7 @@ * USB Type-C Port Controller Interface. */ +#include <linux/bitfield.h> #include <linux/delay.h> #include <linux/kernel.h> #include <linux/module.h> @@ -26,6 +27,7 @@ #define VPPS_NEW_MIN_PERCENT 95 #define VPPS_VALID_MIN_MV 100 #define VSINKDISCONNECT_PD_MIN_PERCENT 90 +#define VPPS_SHUTDOWN_MIN_PERCENT 85 struct tcpci { struct device *dev; @@ -67,6 +69,18 @@ static int tcpci_write16(struct tcpci *tcpci, unsigned int reg, u16 val) return regmap_raw_write(tcpci->regmap, reg, &val, sizeof(u16)); } +static int tcpci_check_std_output_cap(struct regmap *regmap, u8 mask) +{ + unsigned int reg; + int ret; + + ret = regmap_read(regmap, TCPC_STD_OUTPUT_CAP, ®); + if (ret < 0) + return ret; + + return (reg & mask) == mask; +} + static int tcpci_set_cc(struct tcpc_dev *tcpc, enum typec_cc_status cc) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); @@ -91,45 +105,45 @@ static int tcpci_set_cc(struct tcpc_dev *tcpc, enum typec_cc_status cc) switch (cc) { case TYPEC_CC_RA: - reg = (TCPC_ROLE_CTRL_CC_RA << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RA << TCPC_ROLE_CTRL_CC2_SHIFT); + reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RA) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RA)); break; case TYPEC_CC_RD: - reg = (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT); + reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RD) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RD)); break; case TYPEC_CC_RP_DEF: - reg = (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT) | - (TCPC_ROLE_CTRL_RP_VAL_DEF << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_DEF)); break; case TYPEC_CC_RP_1_5: - reg = (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT) | - (TCPC_ROLE_CTRL_RP_VAL_1_5 << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_1_5)); break; case TYPEC_CC_RP_3_0: - reg = (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT) | - (TCPC_ROLE_CTRL_RP_VAL_3_0 << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_3_0)); break; case TYPEC_CC_OPEN: default: - reg = (TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC2_SHIFT); + reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_OPEN) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_OPEN)); break; } if (vconn_pres) { if (polarity == TYPEC_POLARITY_CC2) { - reg &= ~(TCPC_ROLE_CTRL_CC1_MASK << TCPC_ROLE_CTRL_CC1_SHIFT); - reg |= (TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC1_SHIFT); + reg &= ~TCPC_ROLE_CTRL_CC1; + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_OPEN); } else { - reg &= ~(TCPC_ROLE_CTRL_CC2_MASK << TCPC_ROLE_CTRL_CC2_SHIFT); - reg |= (TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC2_SHIFT); + reg &= ~TCPC_ROLE_CTRL_CC2; + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_OPEN); } } @@ -155,15 +169,11 @@ static int tcpci_apply_rc(struct tcpc_dev *tcpc, enum typec_cc_status cc, * APPLY_RC state is when ROLE_CONTROL.CC1 != ROLE_CONTROL.CC2 and vbus autodischarge on * disconnect is disabled. Bail out when ROLE_CONTROL.CC1 != ROLE_CONTROL.CC2. */ - if (((reg & (TCPC_ROLE_CTRL_CC2_MASK << TCPC_ROLE_CTRL_CC2_SHIFT)) >> - TCPC_ROLE_CTRL_CC2_SHIFT) != - ((reg & (TCPC_ROLE_CTRL_CC1_MASK << TCPC_ROLE_CTRL_CC1_SHIFT)) >> - TCPC_ROLE_CTRL_CC1_SHIFT)) + if (FIELD_GET(TCPC_ROLE_CTRL_CC2, reg) != FIELD_GET(TCPC_ROLE_CTRL_CC1, reg)) return 0; return regmap_update_bits(tcpci->regmap, TCPC_ROLE_CTRL, polarity == TYPEC_POLARITY_CC1 ? - TCPC_ROLE_CTRL_CC2_MASK << TCPC_ROLE_CTRL_CC2_SHIFT : - TCPC_ROLE_CTRL_CC1_MASK << TCPC_ROLE_CTRL_CC1_SHIFT, + TCPC_ROLE_CTRL_CC2 : TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_OPEN); } @@ -188,25 +198,25 @@ static int tcpci_start_toggling(struct tcpc_dev *tcpc, switch (cc) { default: case TYPEC_CC_RP_DEF: - reg |= (TCPC_ROLE_CTRL_RP_VAL_DEF << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_DEF); break; case TYPEC_CC_RP_1_5: - reg |= (TCPC_ROLE_CTRL_RP_VAL_1_5 << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_1_5); break; case TYPEC_CC_RP_3_0: - reg |= (TCPC_ROLE_CTRL_RP_VAL_3_0 << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_3_0); break; } if (cc == TYPEC_CC_RD) - reg |= (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT); + reg |= (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RD) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RD)); else - reg |= (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT); + reg |= (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP)); ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg); if (ret < 0) return ret; @@ -229,12 +239,10 @@ static int tcpci_get_cc(struct tcpc_dev *tcpc, if (ret < 0) return ret; - *cc1 = tcpci_to_typec_cc((reg >> TCPC_CC_STATUS_CC1_SHIFT) & - TCPC_CC_STATUS_CC1_MASK, + *cc1 = tcpci_to_typec_cc(FIELD_GET(TCPC_CC_STATUS_CC1, reg), reg & TCPC_CC_STATUS_TERM || tcpc_presenting_rd(role_control, CC1)); - *cc2 = tcpci_to_typec_cc((reg >> TCPC_CC_STATUS_CC2_SHIFT) & - TCPC_CC_STATUS_CC2_MASK, + *cc2 = tcpci_to_typec_cc(FIELD_GET(TCPC_CC_STATUS_CC2, reg), reg & TCPC_CC_STATUS_TERM || tcpc_presenting_rd(role_control, CC2)); @@ -270,28 +278,28 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc, reg = reg & ~TCPC_ROLE_CTRL_DRP; if (polarity == TYPEC_POLARITY_CC2) { - reg &= ~(TCPC_ROLE_CTRL_CC2_MASK << TCPC_ROLE_CTRL_CC2_SHIFT); + reg &= ~TCPC_ROLE_CTRL_CC2; /* Local port is source */ if (cc2 == TYPEC_CC_RD) /* Role control would have the Rp setting when DRP was enabled */ - reg |= TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT; - else - reg |= TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT; + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP); + else if (cc2 >= TYPEC_CC_RP_DEF) + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RD); } else { - reg &= ~(TCPC_ROLE_CTRL_CC1_MASK << TCPC_ROLE_CTRL_CC1_SHIFT); + reg &= ~TCPC_ROLE_CTRL_CC1; /* Local port is source */ if (cc1 == TYPEC_CC_RD) /* Role control would have the Rp setting when DRP was enabled */ - reg |= TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT; - else - reg |= TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT; + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP); + else if (cc1 >= TYPEC_CC_RP_DEF) + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RD); } } if (polarity == TYPEC_POLARITY_CC2) - reg |= TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC1_SHIFT; + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_OPEN); else - reg |= TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC2_SHIFT; + reg |= FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_OPEN); ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg); if (ret < 0) return ret; @@ -301,6 +309,28 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc, TCPC_TCPC_CTRL_ORIENTATION : 0); } +static int tcpci_set_orientation(struct tcpc_dev *tcpc, + enum typec_orientation orientation) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg; + + switch (orientation) { + case TYPEC_ORIENTATION_NONE: + /* We can't put a single output into high impedance */ + fallthrough; + case TYPEC_ORIENTATION_NORMAL: + reg = TCPC_CONFIG_STD_OUTPUT_ORIENTATION_NORMAL; + break; + case TYPEC_ORIENTATION_REVERSE: + reg = TCPC_CONFIG_STD_OUTPUT_ORIENTATION_FLIPPED; + break; + } + + return regmap_update_bits(tcpci->regmap, TCPC_CONFIG_STD_OUTPUT, + TCPC_CONFIG_STD_OUTPUT_ORIENTATION_MASK, reg); +} + static void tcpci_set_partner_usb_comm_capable(struct tcpc_dev *tcpc, bool capable) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); @@ -337,7 +367,8 @@ static int tcpci_enable_auto_vbus_discharge(struct tcpc_dev *dev, bool enable) } static int tcpci_set_auto_vbus_discharge_threshold(struct tcpc_dev *dev, enum typec_pwr_opmode mode, - bool pps_active, u32 requested_vbus_voltage_mv) + bool pps_active, u32 requested_vbus_voltage_mv, + u32 apdo_min_voltage_mv) { struct tcpci *tcpci = tcpc_to_tcpci(dev); unsigned int pwr_ctrl, threshold = 0; @@ -359,9 +390,12 @@ static int tcpci_set_auto_vbus_discharge_threshold(struct tcpc_dev *dev, enum ty threshold = AUTO_DISCHARGE_DEFAULT_THRESHOLD_MV; } else if (mode == TYPEC_PWR_MODE_PD) { if (pps_active) - threshold = ((VPPS_NEW_MIN_PERCENT * requested_vbus_voltage_mv / 100) - - VSINKPD_MIN_IR_DROP_MV - VPPS_VALID_MIN_MV) * - VSINKDISCONNECT_PD_MIN_PERCENT / 100; + /* + * To prevent disconnect when the source is in Current Limit Mode. + * Set the threshold to the lowest possible voltage vPpsShutdown (min) + */ + threshold = VPPS_SHUTDOWN_MIN_PERCENT * apdo_min_voltage_mv / 100 - + VSINKPD_MIN_IR_DROP_MV; else threshold = ((VSRC_NEW_MIN_PERCENT * requested_vbus_voltage_mv / 100) - VSINKPD_MIN_IR_DROP_MV - VSRC_VALID_MIN_MV) * @@ -427,7 +461,7 @@ static int tcpci_set_roles(struct tcpc_dev *tcpc, bool attached, unsigned int reg; int ret; - reg = PD_REV20 << TCPC_MSG_HDR_INFO_REV_SHIFT; + reg = FIELD_PREP(TCPC_MSG_HDR_INFO_REV, PD_REV20); if (role == TYPEC_SOURCE) reg |= TCPC_MSG_HDR_INFO_PWR_ROLE; if (data == TYPEC_HOST) @@ -578,8 +612,11 @@ static int tcpci_pd_transmit(struct tcpc_dev *tcpc, enum tcpm_transmit_type type } /* nRetryCount is 3 in PD2.0 spec where 2 in PD3.0 spec */ - reg = ((negotiated_rev > PD_REV20 ? PD_RETRY_COUNT_3_0_OR_HIGHER : PD_RETRY_COUNT_DEFAULT) - << TCPC_TRANSMIT_RETRY_SHIFT) | (type << TCPC_TRANSMIT_TYPE_SHIFT); + reg = FIELD_PREP(TCPC_TRANSMIT_RETRY, + (negotiated_rev > PD_REV20 + ? PD_RETRY_COUNT_3_0_OR_HIGHER + : PD_RETRY_COUNT_DEFAULT)); + reg |= FIELD_PREP(TCPC_TRANSMIT_TYPE, type); ret = regmap_write(tcpci->regmap, TCPC_TRANSMIT, reg); if (ret < 0) return ret; @@ -668,17 +705,20 @@ static int tcpci_init(struct tcpc_dev *tcpc) tcpci->alert_mask = reg; - return tcpci_write16(tcpci, TCPC_ALERT_MASK, reg); + return 0; } irqreturn_t tcpci_irq(struct tcpci *tcpci) { u16 status; int ret; + int irq_ret; unsigned int raw; tcpci_read16(tcpci, TCPC_ALERT, &status); + irq_ret = status & tcpci->alert_mask; +process_status: /* * Clear alert status for everything except RX_STATUS, which shouldn't * be cleared until we have successfully retrieved message. @@ -751,7 +791,12 @@ irqreturn_t tcpci_irq(struct tcpci *tcpci) else if (status & TCPC_ALERT_TX_FAILED) tcpm_pd_transmit_complete(tcpci->port, TCPC_TX_FAILED); - return IRQ_RETVAL(status & tcpci->alert_mask); + tcpci_read16(tcpci, TCPC_ALERT, &status); + + if (status & tcpci->alert_mask) + goto process_status; + + return IRQ_RETVAL(irq_ret); } EXPORT_SYMBOL_GPL(tcpci_irq); @@ -830,6 +875,9 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) if (tcpci->data->vbus_vsafe0v) tcpci->tcpc.is_vbus_vsafe0v = tcpci_is_vbus_vsafe0v; + if (tcpci->data->set_orientation) + tcpci->tcpc.set_orientation = tcpci_set_orientation; + err = tcpci_parse_config(tcpci); if (err < 0) return ERR_PTR(err); @@ -873,20 +921,34 @@ static int tcpci_probe(struct i2c_client *client) if (err < 0) return err; + err = tcpci_check_std_output_cap(chip->data.regmap, + TCPC_STD_OUTPUT_CAP_ORIENTATION); + if (err < 0) + return err; + + chip->data.set_orientation = err; + chip->tcpci = tcpci_register_port(&client->dev, &chip->data); if (IS_ERR(chip->tcpci)) return PTR_ERR(chip->tcpci); err = devm_request_threaded_irq(&client->dev, client->irq, NULL, _tcpci_irq, - IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_LOW, + IRQF_SHARED | IRQF_ONESHOT, dev_name(&client->dev), chip); - if (err < 0) { - tcpci_unregister_port(chip->tcpci); - return err; - } + if (err < 0) + goto unregister_port; + + /* Enable chip interrupts at last */ + err = tcpci_write16(chip->tcpci, TCPC_ALERT_MASK, chip->tcpci->alert_mask); + if (err < 0) + goto unregister_port; return 0; + +unregister_port: + tcpci_unregister_port(chip->tcpci); + return err; } static void tcpci_remove(struct i2c_client *client) @@ -903,7 +965,7 @@ static void tcpci_remove(struct i2c_client *client) } static const struct i2c_device_id tcpci_id[] = { - { "tcpci", 0 }, + { "tcpci" }, { } }; MODULE_DEVICE_TABLE(i2c, tcpci_id); diff --git a/drivers/usb/typec/tcpm/tcpci_maxim.h b/drivers/usb/typec/tcpm/tcpci_maxim.h index 78ff3b73ee7e..76270d5c2838 100644 --- a/drivers/usb/typec/tcpm/tcpci_maxim.h +++ b/drivers/usb/typec/tcpm/tcpci_maxim.h @@ -20,28 +20,24 @@ #define SBUOVPDIS BIT(7) #define CCOVPDIS BIT(6) #define SBURPCTRL BIT(5) -#define CCLPMODESEL_MASK GENMASK(4, 3) -#define ULTRA_LOW_POWER_MODE BIT(3) -#define CCRPCTRL_MASK GENMASK(2, 0) +#define CCLPMODESEL GENMASK(4, 3) +#define ULTRA_LOW_POWER_MODE 1 +#define CCRPCTRL GENMASK(2, 0) #define UA_1_SRC 1 #define UA_80_SRC 3 #define TCPC_VENDOR_CC_CTRL3 0x8e -#define CCWTRDEB_MASK GENMASK(7, 6) -#define CCWTRDEB_SHIFT 6 +#define CCWTRDEB GENMASK(7, 6) #define CCWTRDEB_1MS 1 -#define CCWTRSEL_MASK GENMASK(5, 3) -#define CCWTRSEL_SHIFT 3 +#define CCWTRSEL GENMASK(5, 3) #define CCWTRSEL_1V 0x4 #define CCLADDERDIS BIT(2) -#define WTRCYCLE_MASK BIT(0) -#define WTRCYCLE_SHIFT 0 +#define WTRCYCLE GENMASK(0, 0) #define WTRCYCLE_2_4_S 0 #define WTRCYCLE_4_8_S 1 #define TCPC_VENDOR_ADC_CTRL1 0x91 -#define ADCINSEL_MASK GENMASK(7, 5) -#define ADC_CHANNEL_OFFSET 5 +#define ADCINSEL GENMASK(7, 5) #define ADCEN BIT(0) enum contamiant_state { @@ -85,6 +81,20 @@ static inline int max_tcpci_write8(struct max_tcpci_chip *chip, unsigned int reg return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u8)); } -bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce); +/** + * max_contaminant_is_contaminant - Test if CC was toggled due to contaminant + * + * @chip: Handle to a struct max_tcpci_chip + * @disconnect_while_debounce: Whether the disconnect was detected when CC + * pins were debouncing + * @cc_handled: Returns whether or not update to CC status was handled here + * + * Determine if a contaminant was detected. + * + * Returns: true if a contaminant was detected, false otherwise. cc_handled + * is updated to reflect whether or not further CC handling is required. + */ +bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce, + bool *cc_handled); #endif // TCPCI_MAXIM_H_ diff --git a/drivers/usb/typec/tcpm/tcpci_maxim_core.c b/drivers/usb/typec/tcpm/tcpci_maxim_core.c index eec3bcec119c..fd1b80593367 100644 --- a/drivers/usb/typec/tcpm/tcpci_maxim_core.c +++ b/drivers/usb/typec/tcpm/tcpci_maxim_core.c @@ -97,11 +97,13 @@ static void max_tcpci_init_regs(struct max_tcpci_chip *chip) if (ret < 0) return; - alert_mask = TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_DISCARDED | TCPC_ALERT_TX_FAILED | - TCPC_ALERT_RX_HARD_RST | TCPC_ALERT_RX_STATUS | TCPC_ALERT_CC_STATUS | - TCPC_ALERT_VBUS_DISCNCT | TCPC_ALERT_RX_BUF_OVF | TCPC_ALERT_POWER_STATUS | - /* Enable Extended alert for detecting Fast Role Swap Signal */ - TCPC_ALERT_EXTND | TCPC_ALERT_EXTENDED_STATUS | TCPC_ALERT_FAULT; + alert_mask = (TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_DISCARDED | + TCPC_ALERT_TX_FAILED | TCPC_ALERT_RX_HARD_RST | + TCPC_ALERT_RX_STATUS | TCPC_ALERT_POWER_STATUS | + TCPC_ALERT_CC_STATUS | + TCPC_ALERT_EXTND | TCPC_ALERT_EXTENDED_STATUS | + TCPC_ALERT_VBUS_DISCNCT | TCPC_ALERT_RX_BUF_OVF | + TCPC_ALERT_FAULT); ret = max_tcpci_write16(chip, TCPC_ALERT_MASK, alert_mask); if (ret < 0) { @@ -191,9 +193,8 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status) * Read complete, clear RX status alert bit. * Clear overflow as well if set. */ - ret = max_tcpci_write16(chip, TCPC_ALERT, status & TCPC_ALERT_RX_BUF_OVF ? - TCPC_ALERT_RX_STATUS | TCPC_ALERT_RX_BUF_OVF : - TCPC_ALERT_RX_STATUS); + ret = max_tcpci_write16(chip, TCPC_ALERT, + TCPC_ALERT_RX_STATUS | (status & TCPC_ALERT_RX_BUF_OVF)); if (ret < 0) return; @@ -295,9 +296,8 @@ static irqreturn_t _max_tcpci_irq(struct max_tcpci_chip *chip, u16 status) * be cleared until we have successfully retrieved message. */ if (status & ~TCPC_ALERT_RX_STATUS) { - mask = status & TCPC_ALERT_RX_BUF_OVF ? - status & ~(TCPC_ALERT_RX_STATUS | TCPC_ALERT_RX_BUF_OVF) : - status & ~TCPC_ALERT_RX_STATUS; + mask = status & ~(TCPC_ALERT_RX_STATUS + | (status & TCPC_ALERT_RX_BUF_OVF)); ret = max_tcpci_write16(chip, TCPC_ALERT, mask); if (ret < 0) { dev_err(chip->dev, "ALERT clear failed\n"); @@ -357,12 +357,14 @@ static irqreturn_t _max_tcpci_irq(struct max_tcpci_chip *chip, u16 status) tcpm_vbus_change(chip->port); if (status & TCPC_ALERT_CC_STATUS) { + bool cc_handled = false; + if (chip->contaminant_state == DETECTED || tcpm_port_is_toggling(chip->port)) { - if (!max_contaminant_is_contaminant(chip, false)) + if (!max_contaminant_is_contaminant(chip, false, &cc_handled)) tcpm_port_clean(chip->port); - } else { - tcpm_cc_change(chip->port); } + if (!cc_handled) + tcpm_cc_change(chip->port); } if (status & TCPC_ALERT_POWER_STATUS) @@ -397,7 +399,7 @@ static irqreturn_t max_tcpci_irq(int irq, void *dev_id) } while (status) { irq_return = _max_tcpci_irq(chip, status); - /* Do not return if the ALERT is already set. */ + /* Do not return if a (new) ALERT is set (again). */ ret = max_tcpci_read16(chip, TCPC_ALERT, &status); if (ret < 0) break; @@ -455,8 +457,9 @@ static int tcpci_init(struct tcpci *tcpci, struct tcpci_data *data) static void max_tcpci_check_contaminant(struct tcpci *tcpci, struct tcpci_data *tdata) { struct max_tcpci_chip *chip = tdata_to_max_tcpci(tdata); + bool cc_handled; - if (!max_contaminant_is_contaminant(chip, true)) + if (!max_contaminant_is_contaminant(chip, true, &cc_handled)) tcpm_port_clean(chip->port); } @@ -472,6 +475,11 @@ static bool max_tcpci_attempt_vconn_swap_discovery(struct tcpci *tcpci, struct t return true; } +static void max_tcpci_unregister_tcpci_port(void *tcpci) +{ + tcpci_unregister_port(tcpci); +} + static int max_tcpci_probe(struct i2c_client *client) { int ret; @@ -484,17 +492,17 @@ static int max_tcpci_probe(struct i2c_client *client) chip->client = client; chip->data.regmap = devm_regmap_init_i2c(client, &max_tcpci_regmap_config); - if (IS_ERR(chip->data.regmap)) { - dev_err(&client->dev, "Regmap init failed\n"); - return PTR_ERR(chip->data.regmap); - } + if (IS_ERR(chip->data.regmap)) + return dev_err_probe(&client->dev, PTR_ERR(chip->data.regmap), + "Regmap init failed\n"); chip->dev = &client->dev; i2c_set_clientdata(client, chip); ret = max_tcpci_read8(chip, TCPC_POWER_STATUS, &power_status); if (ret < 0) - return ret; + return dev_err_probe(&client->dev, ret, + "Failed to read TCPC_POWER_STATUS\n"); /* Chip level tcpci callbacks */ chip->data.set_vbus = max_tcpci_set_vbus; @@ -511,34 +519,29 @@ static int max_tcpci_probe(struct i2c_client *client) max_tcpci_init_regs(chip); chip->tcpci = tcpci_register_port(chip->dev, &chip->data); - if (IS_ERR(chip->tcpci)) { - dev_err(&client->dev, "TCPCI port registration failed\n"); - return PTR_ERR(chip->tcpci); - } + if (IS_ERR(chip->tcpci)) + return dev_err_probe(&client->dev, PTR_ERR(chip->tcpci), + "TCPCI port registration failed\n"); + + ret = devm_add_action_or_reset(&client->dev, + max_tcpci_unregister_tcpci_port, + chip->tcpci); + if (ret) + return ret; + chip->port = tcpci_get_tcpm_port(chip->tcpci); + ret = max_tcpci_init_alert(chip, client); if (ret < 0) - goto unreg_port; + return dev_err_probe(&client->dev, ret, + "IRQ initialization failed\n"); device_init_wakeup(chip->dev, true); return 0; - -unreg_port: - tcpci_unregister_port(chip->tcpci); - - return ret; -} - -static void max_tcpci_remove(struct i2c_client *client) -{ - struct max_tcpci_chip *chip = i2c_get_clientdata(client); - - if (!IS_ERR_OR_NULL(chip->tcpci)) - tcpci_unregister_port(chip->tcpci); } static const struct i2c_device_id max_tcpci_id[] = { - { "maxtcpc", 0 }, + { "maxtcpc" }, { } }; MODULE_DEVICE_TABLE(i2c, max_tcpci_id); @@ -557,7 +560,6 @@ static struct i2c_driver max_tcpci_i2c_driver = { .of_match_table = of_match_ptr(max_tcpci_of_match), }, .probe = max_tcpci_probe, - .remove = max_tcpci_remove, .id_table = max_tcpci_id, }; module_i2c_driver(max_tcpci_i2c_driver); diff --git a/drivers/usb/typec/tcpm/tcpci_mt6360.c b/drivers/usb/typec/tcpm/tcpci_mt6360.c index 02b7fd302265..881ffacbfd77 100644 --- a/drivers/usb/typec/tcpm/tcpci_mt6360.c +++ b/drivers/usb/typec/tcpm/tcpci_mt6360.c @@ -221,7 +221,7 @@ static struct platform_driver mt6360_tcpc_driver = { .of_match_table = mt6360_tcpc_of_id, }, .probe = mt6360_tcpc_probe, - .remove_new = mt6360_tcpc_remove, + .remove = mt6360_tcpc_remove, }; module_platform_driver(mt6360_tcpc_driver); diff --git a/drivers/usb/typec/tcpm/tcpci_mt6370.c b/drivers/usb/typec/tcpm/tcpci_mt6370.c index 9cda1005ef01..ed822f438a09 100644 --- a/drivers/usb/typec/tcpm/tcpci_mt6370.c +++ b/drivers/usb/typec/tcpm/tcpci_mt6370.c @@ -11,7 +11,6 @@ #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/pm_wakeup.h> #include <linux/pm_wakeirq.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> @@ -196,7 +195,7 @@ static struct platform_driver mt6370_tcpc_driver = { .of_match_table = mt6370_tcpc_devid_table, }, .probe = mt6370_tcpc_probe, - .remove_new = mt6370_tcpc_remove, + .remove = mt6370_tcpc_remove, }; module_platform_driver(mt6370_tcpc_driver); diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index 67422d45eb54..88c50b984e8a 100644 --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c @@ -5,6 +5,7 @@ * Richtek RT1711H Type-C Chip Driver */ +#include <linux/bitfield.h> #include <linux/bits.h> #include <linux/kernel.h> #include <linux/mod_devicetable.h> @@ -195,12 +196,10 @@ static inline int rt1711h_init_cc_params(struct rt1711h_chip *chip, u8 status) if (ret < 0) return ret; - cc1 = tcpci_to_typec_cc((status >> TCPC_CC_STATUS_CC1_SHIFT) & - TCPC_CC_STATUS_CC1_MASK, + cc1 = tcpci_to_typec_cc(FIELD_GET(TCPC_CC_STATUS_CC1, status), status & TCPC_CC_STATUS_TERM || tcpc_presenting_rd(role, CC1)); - cc2 = tcpci_to_typec_cc((status >> TCPC_CC_STATUS_CC2_SHIFT) & - TCPC_CC_STATUS_CC2_MASK, + cc2 = tcpci_to_typec_cc(FIELD_GET(TCPC_CC_STATUS_CC2, status), status & TCPC_CC_STATUS_TERM || tcpc_presenting_rd(role, CC2)); @@ -233,25 +232,25 @@ static int rt1711h_start_drp_toggling(struct tcpci *tcpci, switch (cc) { default: case TYPEC_CC_RP_DEF: - reg |= (TCPC_ROLE_CTRL_RP_VAL_DEF << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_DEF); break; case TYPEC_CC_RP_1_5: - reg |= (TCPC_ROLE_CTRL_RP_VAL_1_5 << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_1_5); break; case TYPEC_CC_RP_3_0: - reg |= (TCPC_ROLE_CTRL_RP_VAL_3_0 << - TCPC_ROLE_CTRL_RP_VAL_SHIFT); + reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL, + TCPC_ROLE_CTRL_RP_VAL_3_0); break; } if (cc == TYPEC_CC_RD) - reg |= (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT); + reg |= (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RD) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RD)); else - reg |= (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | - (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT); + reg |= (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP) + | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP)); ret = rt1711h_write8(chip, TCPC_ROLE_CTRL, reg); if (ret < 0) @@ -335,6 +334,11 @@ static int rt1711h_probe(struct i2c_client *client) { int ret; struct rt1711h_chip *chip; + const u16 alert_mask = TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_DISCARDED | + TCPC_ALERT_TX_FAILED | TCPC_ALERT_RX_HARD_RST | + TCPC_ALERT_RX_STATUS | TCPC_ALERT_POWER_STATUS | + TCPC_ALERT_CC_STATUS | TCPC_ALERT_RX_BUF_OVF | + TCPC_ALERT_FAULT; chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) @@ -383,6 +387,12 @@ static int rt1711h_probe(struct i2c_client *client) dev_name(chip->dev), chip); if (ret < 0) return ret; + + /* Enable alert interrupts */ + ret = rt1711h_write16(chip, TCPC_ALERT_MASK, alert_mask); + if (ret < 0) + return ret; + enable_irq_wake(client->irq); return 0; diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index ab6ed6111ed0..8adf6f954633 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -21,6 +21,7 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/string_choices.h> #include <linux/usb.h> #include <linux/usb/pd.h> #include <linux/usb/pd_ado.h> @@ -57,6 +58,7 @@ S(SNK_DISCOVERY_DEBOUNCE), \ S(SNK_DISCOVERY_DEBOUNCE_DONE), \ S(SNK_WAIT_CAPABILITIES), \ + S(SNK_WAIT_CAPABILITIES_TIMEOUT), \ S(SNK_NEGOTIATE_CAPABILITIES), \ S(SNK_NEGOTIATE_PPS_CAPABILITIES), \ S(SNK_TRANSITION_SINK), \ @@ -184,7 +186,8 @@ S(UNSTRUCTURED_VDMS), \ S(STRUCTURED_VDMS), \ S(COUNTRY_INFO), \ - S(COUNTRY_CODES) + S(COUNTRY_CODES), \ + S(REVISION_INFORMATION) #define GENERATE_ENUM(e) e #define GENERATE_STRING(s) #s @@ -224,6 +227,7 @@ enum pd_msg_request { PD_MSG_CTRL_NOT_SUPP, PD_MSG_DATA_SINK_CAP, PD_MSG_DATA_SOURCE_CAP, + PD_MSG_DATA_REV, }; enum adev_actions { @@ -309,6 +313,25 @@ struct pd_data { unsigned int operating_snk_mw; }; +struct pd_revision_info { + u8 rev_major; + u8 rev_minor; + u8 ver_major; + u8 ver_minor; +}; + +/* + * @sink_wait_cap_time: Deadline (in ms) for tTypeCSinkWaitCap timer + * @ps_src_wait_off_time: Deadline (in ms) for tPSSourceOff timer + * @cc_debounce_time: Deadline (in ms) for tCCDebounce timer + */ +struct pd_timings { + u32 sink_wait_cap_time; + u32 ps_src_off_time; + u32 cc_debounce_time; + u32 snk_bc12_cmpletion_time; +}; + struct tcpm_port { struct device *dev; @@ -551,6 +574,12 @@ struct tcpm_port { */ unsigned int message_id_prime; unsigned int rx_msgid_prime; + + /* Timer deadline values configured at runtime */ + struct pd_timings timings; + + /* Indicates maximum (revision, version) supported */ + struct pd_revision_info pd_rev; #ifdef CONFIG_DEBUG_FS struct dentry *dentry; struct mutex logbuffer_lock; /* log buffer access lock */ @@ -864,8 +893,8 @@ static int tcpm_enable_auto_vbus_discharge(struct tcpm_port *port, bool enable) if (port->tcpc->enable_auto_vbus_discharge) { ret = port->tcpc->enable_auto_vbus_discharge(port->tcpc, enable); - tcpm_log_force(port, "%s vbus discharge ret:%d", enable ? "enable" : "disable", - ret); + tcpm_log_force(port, "%s vbus discharge ret:%d", + str_enable_disable(enable), ret); if (!ret) port->auto_vbus_discharge_enabled = enable; } @@ -943,7 +972,7 @@ static int tcpm_pd_transmit(struct tcpm_port *port, enum tcpm_transmit_type tx_sop_type, const struct pd_message *msg) { - unsigned long timeout; + unsigned long time_left; int ret; unsigned int negotiated_rev; @@ -968,10 +997,10 @@ static int tcpm_pd_transmit(struct tcpm_port *port, return ret; mutex_unlock(&port->lock); - timeout = wait_for_completion_timeout(&port->tx_complete, - msecs_to_jiffies(PD_T_TCPC_TX_TIMEOUT)); + time_left = wait_for_completion_timeout(&port->tx_complete, + msecs_to_jiffies(PD_T_TCPC_TX_TIMEOUT)); mutex_lock(&port->lock); - if (!timeout) + if (!time_left) return -ETIMEDOUT; switch (port->tx_status) { @@ -1218,6 +1247,24 @@ static u32 tcpm_forge_legacy_pdo(struct tcpm_port *port, u32 pdo, enum typec_rol } } +static int tcpm_pd_send_revision(struct tcpm_port *port) +{ + struct pd_message msg; + u32 rmdo; + + memset(&msg, 0, sizeof(msg)); + rmdo = RMDO(port->pd_rev.rev_major, port->pd_rev.rev_minor, + port->pd_rev.ver_major, port->pd_rev.ver_minor); + msg.payload[0] = cpu_to_le32(rmdo); + msg.header = PD_HEADER_LE(PD_DATA_REVISION, + port->pwr_role, + port->data_role, + port->negotiated_rev, + port->message_id, + 1); + return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg); +} + static int tcpm_pd_send_source_caps(struct tcpm_port *port) { struct pd_message msg; @@ -1564,8 +1611,12 @@ static void tcpm_queue_vdm(struct tcpm_port *port, const u32 header, static void tcpm_queue_vdm_unlocked(struct tcpm_port *port, const u32 header, const u32 *data, int cnt, enum tcpm_transmit_type tx_sop_type) { + if (port->state != SRC_READY && port->state != SNK_READY && + port->state != SRC_VDM_IDENTITY_REQUEST) + return; + mutex_lock(&port->lock); - tcpm_queue_vdm(port, header, data, cnt, TCPC_TX_SOP); + tcpm_queue_vdm(port, header, data, cnt, tx_sop_type); mutex_unlock(&port->lock); } @@ -1580,7 +1631,8 @@ static void svdm_consume_identity(struct tcpm_port *port, const u32 *p, int cnt) port->partner_ident.cert_stat = p[VDO_INDEX_CSTAT]; port->partner_ident.product = product; - typec_partner_set_identity(port->partner); + if (port->partner) + typec_partner_set_identity(port->partner); tcpm_log(port, "Identity: %04x:%04x.%04x", PD_IDH_VID(vdo), @@ -1742,6 +1794,9 @@ static void tcpm_register_partner_altmodes(struct tcpm_port *port) struct typec_altmode *altmode; int i; + if (!port->partner) + return; + for (i = 0; i < modep->altmodes; i++) { altmode = typec_partner_register_altmode(port->partner, &modep->altmode_desc[i]); @@ -2919,10 +2974,12 @@ static int tcpm_set_auto_vbus_discharge_threshold(struct tcpm_port *port, return 0; ret = port->tcpc->set_auto_vbus_discharge_threshold(port->tcpc, mode, pps_active, - requested_vbus_voltage); + requested_vbus_voltage, + port->pps_data.min_volt); tcpm_log_force(port, - "set_auto_vbus_discharge_threshold mode:%d pps_active:%c vbus:%u ret:%d", - mode, pps_active ? 'y' : 'n', requested_vbus_voltage, ret); + "set_auto_vbus_discharge_threshold mode:%d pps_active:%c vbus:%u pps_apdo_min_volt:%u ret:%d", + mode, pps_active ? 'y' : 'n', requested_vbus_voltage, + port->pps_data.min_volt, ret); return ret; } @@ -2996,7 +3053,7 @@ static int tcpm_register_source_caps(struct tcpm_port *port) { struct usb_power_delivery_desc desc = { port->negotiated_rev }; struct usb_power_delivery_capabilities_desc caps = { }; - struct usb_power_delivery_capabilities *cap; + struct usb_power_delivery_capabilities *cap = port->partner_source_caps; if (!port->partner_pd) port->partner_pd = usb_power_delivery_register(NULL, &desc); @@ -3006,6 +3063,11 @@ static int tcpm_register_source_caps(struct tcpm_port *port) memcpy(caps.pdo, port->source_caps, sizeof(u32) * port->nr_source_caps); caps.role = TYPEC_SOURCE; + if (cap) { + usb_power_delivery_unregister_capabilities(cap); + port->partner_source_caps = NULL; + } + cap = usb_power_delivery_register_capabilities(port->partner_pd, &caps); if (IS_ERR(cap)) return PTR_ERR(cap); @@ -3097,7 +3159,8 @@ static void tcpm_pd_data_request(struct tcpm_port *port, PD_MSG_CTRL_REJECT : PD_MSG_CTRL_NOT_SUPP, NONE_AMS); - } else if (port->state == SNK_WAIT_CAPABILITIES) { + } else if (port->state == SNK_WAIT_CAPABILITIES || + port->state == SNK_WAIT_CAPABILITIES_TIMEOUT) { /* * This message may be received even if VBUS is not * present. This is quite unexpected; see USB PD @@ -3507,6 +3570,17 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port, PD_MSG_CTRL_NOT_SUPP, NONE_AMS); break; + case PD_CTRL_GET_REVISION: + if (port->negotiated_rev >= PD_REV30 && port->pd_rev.rev_major) + tcpm_pd_handle_msg(port, PD_MSG_DATA_REV, + REVISION_INFORMATION); + else + tcpm_pd_handle_msg(port, + port->negotiated_rev < PD_REV30 ? + PD_MSG_CTRL_REJECT : + PD_MSG_CTRL_NOT_SUPP, + NONE_AMS); + break; default: tcpm_pd_handle_msg(port, port->negotiated_rev < PD_REV30 ? @@ -3751,6 +3825,14 @@ static bool tcpm_send_queued_message(struct tcpm_port *port) tcpm_ams_finish(port); } break; + case PD_MSG_DATA_REV: + ret = tcpm_pd_send_revision(port); + if (ret) + tcpm_log(port, + "Unable to send revision msg, ret=%d", + ret); + tcpm_ams_finish(port); + break; default: break; } @@ -4231,7 +4313,10 @@ static int tcpm_init_vconn(struct tcpm_port *port) static void tcpm_typec_connect(struct tcpm_port *port) { + struct typec_partner *partner; + if (!port->connected) { + port->connected = true; /* Make sure we don't report stale identity information */ memset(&port->partner_ident, 0, sizeof(port->partner_ident)); port->partner_desc.usb_pd = port->pd_capable; @@ -4241,9 +4326,13 @@ static void tcpm_typec_connect(struct tcpm_port *port) port->partner_desc.accessory = TYPEC_ACCESSORY_AUDIO; else port->partner_desc.accessory = TYPEC_ACCESSORY_NONE; - port->partner = typec_register_partner(port->typec_port, - &port->partner_desc); - port->connected = true; + partner = typec_register_partner(port->typec_port, &port->partner_desc); + if (IS_ERR(partner)) { + dev_err(port->dev, "Failed to register partner (%ld)\n", PTR_ERR(partner)); + return; + } + + port->partner = partner; typec_partner_set_usb_power_delivery(port->partner, port->partner_pd); } } @@ -4323,9 +4412,11 @@ static void tcpm_typec_disconnect(struct tcpm_port *port) port->plug_prime = NULL; port->cable = NULL; if (port->connected) { - typec_partner_set_usb_power_delivery(port->partner, NULL); - typec_unregister_partner(port->partner); - port->partner = NULL; + if (port->partner) { + typec_partner_set_usb_power_delivery(port->partner, NULL); + typec_unregister_partner(port->partner); + port->partner = NULL; + } port->connected = false; } } @@ -4351,7 +4442,7 @@ static void tcpm_unregister_altmodes(struct tcpm_port *port) static void tcpm_set_partner_usb_comm_capable(struct tcpm_port *port, bool capable) { - tcpm_log(port, "Setting usb_comm capable %s", capable ? "true" : "false"); + tcpm_log(port, "Setting usb_comm capable %s", str_true_false(capable)); if (port->tcpc->set_partner_usb_comm_capable) port->tcpc->set_partner_usb_comm_capable(port->tcpc, capable); @@ -4491,7 +4582,8 @@ static inline enum tcpm_state hard_reset_state(struct tcpm_port *port) return ERROR_RECOVERY; if (port->pwr_role == TYPEC_SOURCE) return SRC_UNATTACHED; - if (port->state == SNK_WAIT_CAPABILITIES) + if (port->state == SNK_WAIT_CAPABILITIES || + port->state == SNK_WAIT_CAPABILITIES_TIMEOUT) return SNK_READY; return SNK_UNATTACHED; } @@ -4549,6 +4641,9 @@ static enum typec_cc_status tcpm_pwr_opmode_to_rp(enum typec_pwr_opmode opmode) static void tcpm_set_initial_svdm_version(struct tcpm_port *port) { + if (!port->partner) + return; + switch (port->negotiated_rev) { case PD_REV30: break; @@ -4612,15 +4707,15 @@ static void run_state_machine(struct tcpm_port *port) case SRC_ATTACH_WAIT: if (tcpm_port_is_debug(port)) tcpm_set_state(port, DEBUG_ACC_ATTACHED, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); else if (tcpm_port_is_audio(port)) tcpm_set_state(port, AUDIO_ACC_ATTACHED, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); else if (tcpm_port_is_source(port) && port->vbus_vsafe0v) tcpm_set_state(port, tcpm_try_snk(port) ? SNK_TRY : SRC_ATTACHED, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); break; case SNK_TRY: @@ -4671,7 +4766,7 @@ static void run_state_machine(struct tcpm_port *port) } break; case SRC_TRYWAIT_DEBOUNCE: - tcpm_set_state(port, SRC_ATTACHED, PD_T_CC_DEBOUNCE); + tcpm_set_state(port, SRC_ATTACHED, port->timings.cc_debounce_time); break; case SRC_TRYWAIT_UNATTACHED: tcpm_set_state(port, SNK_UNATTACHED, 0); @@ -4729,7 +4824,7 @@ static void run_state_machine(struct tcpm_port *port) port->caps_count = 0; port->pd_capable = true; tcpm_set_state_cond(port, SRC_SEND_CAPABILITIES_TIMEOUT, - PD_T_SEND_SOURCE_CAP); + PD_T_SENDER_RESPONSE); } break; case SRC_SEND_CAPABILITIES_TIMEOUT: @@ -4874,7 +4969,7 @@ static void run_state_machine(struct tcpm_port *port) (port->cc1 != TYPEC_CC_OPEN && port->cc2 == TYPEC_CC_OPEN)) tcpm_set_state(port, SNK_DEBOUNCED, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); else if (tcpm_port_is_disconnected(port)) tcpm_set_state(port, SNK_UNATTACHED, PD_T_PD_DEBOUNCE); @@ -4914,7 +5009,7 @@ static void run_state_machine(struct tcpm_port *port) break; case SNK_TRYWAIT: tcpm_set_cc(port, TYPEC_CC_RD); - tcpm_set_state(port, SNK_TRYWAIT_VBUS, PD_T_CC_DEBOUNCE); + tcpm_set_state(port, SNK_TRYWAIT_VBUS, port->timings.cc_debounce_time); break; case SNK_TRYWAIT_VBUS: /* @@ -4937,7 +5032,16 @@ static void run_state_machine(struct tcpm_port *port) if (ret < 0) tcpm_set_state(port, SNK_UNATTACHED, 0); else - tcpm_set_state(port, SNK_STARTUP, 0); + /* + * For Type C port controllers that use Battery Charging + * Detection (based on BCv1.2 spec) to detect USB + * charger type, add a delay of "snk_bc12_cmpletion_time" + * before transitioning to SNK_STARTUP to allow BC1.2 + * detection to complete before PD is eventually enabled + * in later states. + */ + tcpm_set_state(port, SNK_STARTUP, + port->timings.snk_bc12_cmpletion_time); break; case SNK_STARTUP: opmode = tcpm_get_pwr_opmode(port->polarity ? @@ -4987,7 +5091,7 @@ static void run_state_machine(struct tcpm_port *port) break; case SNK_DISCOVERY_DEBOUNCE: tcpm_set_state(port, SNK_DISCOVERY_DEBOUNCE_DONE, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); break; case SNK_DISCOVERY_DEBOUNCE_DONE: if (!tcpm_port_is_disconnected(port) && @@ -5013,12 +5117,38 @@ static void run_state_machine(struct tcpm_port *port) */ if (port->vbus_never_low) { port->vbus_never_low = false; - tcpm_set_state(port, SNK_SOFT_RESET, - PD_T_SINK_WAIT_CAP); + upcoming_state = SNK_SOFT_RESET; } else { - tcpm_set_state(port, hard_reset_state(port), - PD_T_SINK_WAIT_CAP); + if (!port->self_powered) + upcoming_state = SNK_WAIT_CAPABILITIES_TIMEOUT; + else + upcoming_state = hard_reset_state(port); } + + tcpm_set_state(port, upcoming_state, + port->timings.sink_wait_cap_time); + break; + case SNK_WAIT_CAPABILITIES_TIMEOUT: + /* + * There are some USB PD sources in the field, which do not + * properly implement the specification and fail to start + * sending Source Capability messages after a soft reset. The + * specification suggests to do a hard reset when no Source + * capability message is received within PD_T_SINK_WAIT_CAP, + * but that might effectively kil the machine's power source. + * + * This slightly diverges from the specification and tries to + * recover from this by explicitly asking for the capabilities + * using the Get_Source_Cap control message before falling back + * to a hard reset. The control message should also be supported + * and handled by all USB PD source and dual role devices + * according to the specification. + */ + if (tcpm_pd_send_control(port, PD_CTRL_GET_SOURCE_CAP, TCPC_TX_SOP)) + tcpm_set_state_cond(port, hard_reset_state(port), 0); + else + tcpm_set_state(port, hard_reset_state(port), + port->timings.sink_wait_cap_time); break; case SNK_NEGOTIATE_CAPABILITIES: port->pd_capable = true; @@ -5155,13 +5285,15 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, ACC_UNATTACHED, 0); break; case AUDIO_ACC_DEBOUNCE: - tcpm_set_state(port, ACC_UNATTACHED, PD_T_CC_DEBOUNCE); + tcpm_set_state(port, ACC_UNATTACHED, port->timings.cc_debounce_time); break; /* Hard_Reset states */ case HARD_RESET_SEND: if (port->ams != NONE_AMS) tcpm_ams_finish(port); + if (!port->self_powered && port->port_type == TYPEC_PORT_SNK) + dev_err(port->dev, "Initiating hard-reset, which might result in machine power-loss.\n"); /* * State machine will be directed to HARD_RESET_START, * thus set upcoming_state to INVALID_STATE. @@ -5220,7 +5352,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, SRC_UNATTACHED, PD_T_PS_SOURCE_ON); break; case SNK_HARD_RESET_SINK_OFF: - /* Do not discharge/disconnect during hard reseet */ + /* Do not discharge/disconnect during hard reset */ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_USB, false, 0); memset(&port->pps_data, 0, sizeof(port->pps_data)); tcpm_set_vconn(port, false); @@ -5370,7 +5502,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, ERROR_RECOVERY, 0); break; case FR_SWAP_SNK_SRC_TRANSITION_TO_OFF: - tcpm_set_state(port, ERROR_RECOVERY, PD_T_PS_SOURCE_OFF); + tcpm_set_state(port, ERROR_RECOVERY, port->timings.ps_src_off_time); break; case FR_SWAP_SNK_SRC_NEW_SINK_READY: if (port->vbus_source) @@ -5425,7 +5557,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_cc(port, TYPEC_CC_RD); /* allow CC debounce */ tcpm_set_state(port, PR_SWAP_SRC_SNK_SOURCE_OFF_CC_DEBOUNCED, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); break; case PR_SWAP_SRC_SNK_SOURCE_OFF_CC_DEBOUNCED: /* @@ -5459,8 +5591,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_USB, port->pps_data.active, 0); tcpm_set_charge(port, false); - tcpm_set_state(port, hard_reset_state(port), - PD_T_PS_SOURCE_OFF); + tcpm_set_state(port, ERROR_RECOVERY, port->timings.ps_src_off_time); break; case PR_SWAP_SNK_SRC_SOURCE_ON: tcpm_enable_auto_vbus_discharge(port, true); @@ -5616,7 +5747,7 @@ static void run_state_machine(struct tcpm_port *port) case PORT_RESET_WAIT_OFF: tcpm_set_state(port, tcpm_default_state(port), - port->vbus_present ? PD_T_PS_SOURCE_OFF : 0); + port->vbus_present ? port->timings.ps_src_off_time : 0); break; /* AMS intermediate state */ @@ -5834,7 +5965,7 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1, case SNK_TRY_WAIT_DEBOUNCE: if (!tcpm_port_is_sink(port)) { port->max_wait = 0; - tcpm_set_state(port, SRC_TRYWAIT, 0); + tcpm_set_state(port, SRC_TRYWAIT, PD_T_PD_DEBOUNCE); } break; case SRC_TRY_WAIT: @@ -6016,7 +6147,7 @@ static void _tcpm_pd_vbus_off(struct tcpm_port *port) break; case SNK_ATTACH_WAIT: case SNK_DEBOUNCED: - /* Do nothing, as TCPM is still waiting for vbus to reaach VSAFE5V to connect */ + /* Do nothing, as TCPM is still waiting for vbus to reach VSAFE5V to connect */ break; case SNK_NEGOTIATE_CAPABILITIES: @@ -6107,7 +6238,7 @@ static void _tcpm_pd_vbus_vsafe0v(struct tcpm_port *port) case SRC_ATTACH_WAIT: if (tcpm_port_is_source(port)) tcpm_set_state(port, tcpm_try_snk(port) ? SNK_TRY : SRC_ATTACHED, - PD_T_CC_DEBOUNCE); + port->timings.cc_debounce_time); break; case SRC_STARTUP: case SRC_SEND_CAPABILITIES: @@ -6148,6 +6279,7 @@ static void _tcpm_pd_hard_reset(struct tcpm_port *port) port->tcpc->set_bist_data(port->tcpc, false); switch (port->state) { + case TOGGLING: case ERROR_RECOVERY: case PORT_RESET: case PORT_RESET_WAIT_OFF: @@ -6955,7 +7087,9 @@ static void tcpm_port_unregister_pd(struct tcpm_port *port) static int tcpm_port_register_pd(struct tcpm_port *port) { - struct usb_power_delivery_desc desc = { port->typec_caps.pd_revision }; + u16 pd_revision = port->typec_caps.pd_revision; + u16 pd_version = port->pd_rev.ver_major << 8 | port->pd_rev.ver_minor; + struct usb_power_delivery_desc desc = { pd_revision, pd_version }; struct usb_power_delivery_capabilities *cap; int ret, i; @@ -7002,6 +7136,34 @@ err_unregister: return ret; } +static void tcpm_fw_get_timings(struct tcpm_port *port, struct fwnode_handle *fwnode) +{ + int ret; + u32 val; + + ret = fwnode_property_read_u32(fwnode, "sink-wait-cap-time-ms", &val); + if (!ret) + port->timings.sink_wait_cap_time = val; + else + port->timings.sink_wait_cap_time = PD_T_SINK_WAIT_CAP; + + ret = fwnode_property_read_u32(fwnode, "ps-source-off-time-ms", &val); + if (!ret) + port->timings.ps_src_off_time = val; + else + port->timings.ps_src_off_time = PD_T_PS_SOURCE_OFF; + + ret = fwnode_property_read_u32(fwnode, "cc-debounce-time-ms", &val); + if (!ret) + port->timings.cc_debounce_time = val; + else + port->timings.cc_debounce_time = PD_T_CC_DEBOUNCE; + + ret = fwnode_property_read_u32(fwnode, "sink-bc12-completion-time-ms", &val); + if (!ret) + port->timings.snk_bc12_cmpletion_time = val; +} + static int tcpm_fw_get_caps(struct tcpm_port *port, struct fwnode_handle *fwnode) { struct fwnode_handle *capabilities, *child, *caps = NULL; @@ -7222,6 +7384,29 @@ static int tcpm_fw_get_snk_vdos(struct tcpm_port *port, struct fwnode_handle *fw return 0; } +static void tcpm_fw_get_pd_revision(struct tcpm_port *port, struct fwnode_handle *fwnode) +{ + int ret; + u8 val[4]; + + ret = fwnode_property_count_u8(fwnode, "pd-revision"); + if (!ret || ret != 4) { + tcpm_log(port, "Unable to find pd-revision property or incorrect array size"); + return; + } + + ret = fwnode_property_read_u8_array(fwnode, "pd-revision", val, 4); + if (ret) { + tcpm_log(port, "Failed to parse pd-revision, ret:(%d)", ret); + return; + } + + port->pd_rev.rev_major = val[0]; + port->pd_rev.rev_minor = val[1]; + port->pd_rev.ver_major = val[2]; + port->pd_rev.ver_minor = val[3]; +} + /* Power Supply access to expose source power information */ enum tcpm_psy_online_states { TCPM_PSY_OFFLINE = 0, @@ -7316,7 +7501,7 @@ static int tcpm_psy_get_input_power_limit(struct tcpm_port *port, src_mv = pdo_fixed_voltage(pdo); src_ma = pdo_max_current(pdo); tmp = src_mv * src_ma; - max_src_uw = tmp > max_src_uw ? tmp : max_src_uw; + max_src_uw = max(tmp, max_src_uw); } } @@ -7432,12 +7617,6 @@ static int tcpm_psy_prop_writeable(struct power_supply *psy, } } -static enum power_supply_usb_type tcpm_psy_usb_types[] = { - POWER_SUPPLY_USB_TYPE_C, - POWER_SUPPLY_USB_TYPE_PD, - POWER_SUPPLY_USB_TYPE_PD_PPS, -}; - static const char *tcpm_psy_name_prefix = "tcpm-source-psy-"; static int devm_tcpm_psy_register(struct tcpm_port *port) @@ -7458,8 +7637,9 @@ static int devm_tcpm_psy_register(struct tcpm_port *port) port_dev_name); port->psy_desc.name = psy_name; port->psy_desc.type = POWER_SUPPLY_TYPE_USB; - port->psy_desc.usb_types = tcpm_psy_usb_types; - port->psy_desc.num_usb_types = ARRAY_SIZE(tcpm_psy_usb_types); + port->psy_desc.usb_types = BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD) | + BIT(POWER_SUPPLY_USB_TYPE_PD_PPS); port->psy_desc.properties = tcpm_psy_props; port->psy_desc.num_properties = ARRAY_SIZE(tcpm_psy_props); port->psy_desc.get_property = tcpm_psy_get_prop; @@ -7531,7 +7711,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) mutex_init(&port->lock); mutex_init(&port->swap_lock); - port->wq = kthread_create_worker(0, dev_name(dev)); + port->wq = kthread_run_worker(0, dev_name(dev)); if (IS_ERR(port->wq)) return ERR_CAST(port->wq); sched_set_fifo(port->wq->task); @@ -7541,14 +7721,14 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) kthread_init_work(&port->event_work, tcpm_pd_event_handler); kthread_init_work(&port->enable_frs, tcpm_enable_frs_work); kthread_init_work(&port->send_discover_work, tcpm_send_discover_work); - hrtimer_init(&port->state_machine_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - port->state_machine_timer.function = state_machine_timer_handler; - hrtimer_init(&port->vdm_state_machine_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - port->vdm_state_machine_timer.function = vdm_state_machine_timer_handler; - hrtimer_init(&port->enable_frs_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - port->enable_frs_timer.function = enable_frs_timer_handler; - hrtimer_init(&port->send_discover_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - port->send_discover_timer.function = send_discover_timer_handler; + hrtimer_setup(&port->state_machine_timer, state_machine_timer_handler, CLOCK_MONOTONIC, + HRTIMER_MODE_REL); + hrtimer_setup(&port->vdm_state_machine_timer, vdm_state_machine_timer_handler, + CLOCK_MONOTONIC, HRTIMER_MODE_REL); + hrtimer_setup(&port->enable_frs_timer, enable_frs_timer_handler, CLOCK_MONOTONIC, + HRTIMER_MODE_REL); + hrtimer_setup(&port->send_discover_timer, send_discover_timer_handler, CLOCK_MONOTONIC, + HRTIMER_MODE_REL); spin_lock_init(&port->pd_event_lock); @@ -7564,10 +7744,19 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) if (err < 0) goto out_destroy_wq; + tcpm_fw_get_timings(port, tcpc->fwnode); + tcpm_fw_get_pd_revision(port, tcpc->fwnode); + port->try_role = port->typec_caps.prefer_role; port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */ - port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */ + + if (port->pd_rev.rev_major) + port->typec_caps.pd_revision = port->pd_rev.rev_major << 8 | + port->pd_rev.rev_minor; + else + port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */ + port->typec_caps.svdm_version = SVDM_VER_2_0; port->typec_caps.driver_data = port; port->typec_caps.ops = &tcpm_ops; diff --git a/drivers/usb/typec/tcpm/wcove.c b/drivers/usb/typec/tcpm/wcove.c index cf719307b3f6..759c982bb16a 100644 --- a/drivers/usb/typec/tcpm/wcove.c +++ b/drivers/usb/typec/tcpm/wcove.c @@ -621,10 +621,6 @@ static int wcove_typec_probe(struct platform_device *pdev) if (irq < 0) return irq; - irq = regmap_irq_get_virq(pmic->irq_chip_data_chgr, irq); - if (irq < 0) - return irq; - ret = guid_parse(WCOVE_DSM_UUID, &wcove->guid); if (ret) return ret; @@ -691,7 +687,7 @@ static struct platform_driver wcove_typec_driver = { .name = "bxt_wcove_usbc", }, .probe = wcove_typec_probe, - .remove_new = wcove_typec_remove, + .remove = wcove_typec_remove, }; module_platform_driver(wcove_typec_driver); diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c index 0717cfcd9f8c..7ee721a877c1 100644 --- a/drivers/usb/typec/tipd/core.c +++ b/drivers/usb/typec/tipd/core.c @@ -28,6 +28,7 @@ #define TPS_REG_MODE 0x03 #define TPS_REG_CMD1 0x08 #define TPS_REG_DATA1 0x09 +#define TPS_REG_VERSION 0x0F #define TPS_REG_INT_EVENT1 0x14 #define TPS_REG_INT_EVENT2 0x15 #define TPS_REG_INT_MASK1 0x16 @@ -149,11 +150,6 @@ static enum power_supply_property tps6598x_psy_props[] = { POWER_SUPPLY_PROP_ONLINE, }; -static enum power_supply_usb_type tps6598x_psy_usb_types[] = { - POWER_SUPPLY_USB_TYPE_C, - POWER_SUPPLY_USB_TYPE_PD, -}; - static const char *tps6598x_psy_name_prefix = "tps6598x-source-psy-"; /* @@ -604,11 +600,11 @@ static irqreturn_t tps25750_interrupt(int irq, void *data) if (!tps6598x_read_status(tps, &status)) goto err_clear_ints; - if ((event[0] | event[1]) & TPS_REG_INT_POWER_STATUS_UPDATE) + if (event[0] & TPS_REG_INT_POWER_STATUS_UPDATE) if (!tps6598x_read_power_status(tps)) goto err_clear_ints; - if ((event[0] | event[1]) & TPS_REG_INT_DATA_STATUS_UPDATE) + if (event[0] & TPS_REG_INT_DATA_STATUS_UPDATE) if (!tps6598x_read_data_status(tps)) goto err_clear_ints; @@ -617,7 +613,7 @@ static irqreturn_t tps25750_interrupt(int irq, void *data) * a plug event. Therefore, we need to check * for pr/dr status change to set TypeC dr/pr accordingly. */ - if ((event[0] | event[1]) & TPS_REG_INT_PLUG_EVENT || + if (event[0] & TPS_REG_INT_PLUG_EVENT || tps6598x_has_role_changed(tps, status)) tps6598x_handle_plug_event(tps, status); @@ -636,49 +632,67 @@ err_unlock: static irqreturn_t tps6598x_interrupt(int irq, void *data) { + int intev_len = TPS_65981_2_6_INTEVENT_LEN; struct tps6598x *tps = data; - u64 event1 = 0; - u64 event2 = 0; + u64 event1[2] = { }; + u64 event2[2] = { }; + u32 version; u32 status; int ret; mutex_lock(&tps->lock); - ret = tps6598x_read64(tps, TPS_REG_INT_EVENT1, &event1); - ret |= tps6598x_read64(tps, TPS_REG_INT_EVENT2, &event2); + ret = tps6598x_read32(tps, TPS_REG_VERSION, &version); + if (ret) + dev_warn(tps->dev, "%s: failed to read version (%d)\n", + __func__, ret); + + if (TPS_VERSION_HW_VERSION(version) == TPS_VERSION_HW_65987_8_DH || + TPS_VERSION_HW_VERSION(version) == TPS_VERSION_HW_65987_8_DK) + intev_len = TPS_65987_8_INTEVENT_LEN; + + ret = tps6598x_block_read(tps, TPS_REG_INT_EVENT1, event1, intev_len); + + ret = tps6598x_block_read(tps, TPS_REG_INT_EVENT1, event1, intev_len); if (ret) { - dev_err(tps->dev, "%s: failed to read events\n", __func__); + dev_err(tps->dev, "%s: failed to read event1\n", __func__); goto err_unlock; } - trace_tps6598x_irq(event1, event2); + ret = tps6598x_block_read(tps, TPS_REG_INT_EVENT2, event2, intev_len); + if (ret) { + dev_err(tps->dev, "%s: failed to read event2\n", __func__); + goto err_unlock; + } + trace_tps6598x_irq(event1[0], event2[0]); - if (!(event1 | event2)) + if (!(event1[0] | event1[1] | event2[0] | event2[1])) goto err_unlock; if (!tps6598x_read_status(tps, &status)) goto err_clear_ints; - if ((event1 | event2) & TPS_REG_INT_POWER_STATUS_UPDATE) + if ((event1[0] | event2[0]) & TPS_REG_INT_POWER_STATUS_UPDATE) if (!tps6598x_read_power_status(tps)) goto err_clear_ints; - if ((event1 | event2) & TPS_REG_INT_DATA_STATUS_UPDATE) + if ((event1[0] | event2[0]) & TPS_REG_INT_DATA_STATUS_UPDATE) if (!tps6598x_read_data_status(tps)) goto err_clear_ints; /* Handle plug insert or removal */ - if ((event1 | event2) & TPS_REG_INT_PLUG_EVENT) + if ((event1[0] | event2[0]) & TPS_REG_INT_PLUG_EVENT) tps6598x_handle_plug_event(tps, status); err_clear_ints: - tps6598x_write64(tps, TPS_REG_INT_CLEAR1, event1); - tps6598x_write64(tps, TPS_REG_INT_CLEAR2, event2); + tps6598x_block_write(tps, TPS_REG_INT_CLEAR1, event1, intev_len); + tps6598x_block_write(tps, TPS_REG_INT_CLEAR2, event2, intev_len); err_unlock: mutex_unlock(&tps->lock); - if (event1 | event2) + if (event1[0] | event1[1] | event2[0] | event2[1]) return IRQ_HANDLED; + return IRQ_NONE; } @@ -808,8 +822,8 @@ static int devm_tps6598_psy_register(struct tps6598x *tps) tps->psy_desc.name = psy_name; tps->psy_desc.type = POWER_SUPPLY_TYPE_USB; - tps->psy_desc.usb_types = tps6598x_psy_usb_types; - tps->psy_desc.num_usb_types = ARRAY_SIZE(tps6598x_psy_usb_types); + tps->psy_desc.usb_types = BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD); tps->psy_desc.properties = tps6598x_psy_props; tps->psy_desc.num_properties = ARRAY_SIZE(tps6598x_psy_props); tps->psy_desc.get_property = tps6598x_psy_get_prop; @@ -873,19 +887,19 @@ tps6598x_register_port(struct tps6598x *tps, struct fwnode_handle *fwnode) return 0; } -static int tps_request_firmware(struct tps6598x *tps, const struct firmware **fw) +static int tps_request_firmware(struct tps6598x *tps, const struct firmware **fw, + const char **firmware_name) { - const char *firmware_name; int ret; ret = device_property_read_string(tps->dev, "firmware-name", - &firmware_name); + firmware_name); if (ret) return ret; - ret = request_firmware(fw, firmware_name, tps->dev); + ret = request_firmware(fw, *firmware_name, tps->dev); if (ret) { - dev_err(tps->dev, "failed to retrieve \"%s\"\n", firmware_name); + dev_err(tps->dev, "failed to retrieve \"%s\"\n", *firmware_name); return ret; } @@ -980,12 +994,7 @@ static int tps25750_start_patch_burst_mode(struct tps6598x *tps) u32 addr; struct device_node *np = tps->dev->of_node; - ret = device_property_read_string(tps->dev, "firmware-name", - &firmware_name); - if (ret) - return ret; - - ret = tps_request_firmware(tps, &fw); + ret = tps_request_firmware(tps, &fw, &firmware_name); if (ret) return ret; @@ -1136,12 +1145,7 @@ static int tps6598x_apply_patch(struct tps6598x *tps) const char *firmware_name; int ret; - ret = device_property_read_string(tps->dev, "firmware-name", - &firmware_name); - if (ret) - return ret; - - ret = tps_request_firmware(tps, &fw); + ret = tps_request_firmware(tps, &fw, &firmware_name); if (ret) return ret; @@ -1156,10 +1160,7 @@ static int tps6598x_apply_patch(struct tps6598x *tps) bytes_left = fw->size; while (bytes_left) { - if (bytes_left < TPS_MAX_LEN) - in_len = bytes_left; - else - in_len = TPS_MAX_LEN; + in_len = min(bytes_left, TPS_MAX_LEN); ret = tps6598x_exec_cmd(tps, "PTCd", in_len, fw->data + copied_bytes, TPS_PTCD_OUT_BYTES, out); @@ -1185,10 +1186,14 @@ static int tps6598x_apply_patch(struct tps6598x *tps) dev_info(tps->dev, "Firmware update succeeded\n"); release_fw: + if (ret) { + dev_err(tps->dev, "Failed to write patch %s of %zu bytes\n", + firmware_name, fw->size); + } release_firmware(fw); return ret; -}; +} static int cd321x_init(struct tps6598x *tps) { @@ -1346,10 +1351,7 @@ static int tps6598x_probe(struct i2c_client *client) TPS_REG_INT_PLUG_EVENT; } - if (dev_fwnode(tps->dev)) - tps->data = device_get_match_data(tps->dev); - else - tps->data = i2c_get_match_data(client); + tps->data = i2c_get_match_data(client); if (!tps->data) return -EINVAL; @@ -1458,8 +1460,9 @@ static void tps6598x_remove(struct i2c_client *client) if (!client->irq) cancel_delayed_work_sync(&tps->wq_poll); + else + devm_free_irq(tps->dev, client->irq, tps); - devm_free_irq(tps->dev, client->irq, tps); tps6598x_disconnect(tps, 0); typec_unregister_port(tps->port); usb_role_switch_put(tps->role_sw); diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h index 89b24519463a..9b23e9017452 100644 --- a/drivers/usb/typec/tipd/tps6598x.h +++ b/drivers/usb/typec/tipd/tps6598x.h @@ -253,4 +253,15 @@ #define TPS_PTCC_DEV 2 #define TPS_PTCC_APP 3 +/* Version Register */ +#define TPS_VERSION_HW_VERSION_MASK GENMASK(31, 24) +#define TPS_VERSION_HW_VERSION(x) TPS_FIELD_GET(TPS_VERSION_HW_VERSION_MASK, (x)) +#define TPS_VERSION_HW_65981_2_6 0x00 +#define TPS_VERSION_HW_65987_8_DH 0xF7 +#define TPS_VERSION_HW_65987_8_DK 0xF9 + +/* Int Event Register length */ +#define TPS_65981_2_6_INTEVENT_LEN 8 +#define TPS_65987_8_INTEVENT_LEN 11 + #endif /* __TPS6598X_H__ */ diff --git a/drivers/usb/typec/ucsi/Kconfig b/drivers/usb/typec/ucsi/Kconfig index bdcb1764cfae..75559601fe8f 100644 --- a/drivers/usb/typec/ucsi/Kconfig +++ b/drivers/usb/typec/ucsi/Kconfig @@ -69,4 +69,26 @@ config UCSI_PMIC_GLINK To compile the driver as a module, choose M here: the module will be called ucsi_glink. +config CROS_EC_UCSI + tristate "UCSI Driver for ChromeOS EC" + depends on MFD_CROS_EC_DEV + depends on CROS_USBPD_NOTIFY + depends on !EXTCON_TCSS_CROS_EC + default MFD_CROS_EC_DEV + help + This driver enables UCSI support for a ChromeOS EC. The EC is + expected to implement a PPM. + + To compile the driver as a module, choose M here: the module + will be called cros_ec_ucsi. + +config UCSI_LENOVO_YOGA_C630 + tristate "UCSI Interface Driver for Lenovo Yoga C630" + depends on EC_LENOVO_YOGA_C630 + help + This driver enables UCSI support on the Lenovo Yoga C630 laptop. + + To compile the driver as a module, choose M here: the module will be + called ucsi_yoga_c630. + endif diff --git a/drivers/usb/typec/ucsi/Makefile b/drivers/usb/typec/ucsi/Makefile index b4679f94696b..be98a879104d 100644 --- a/drivers/usb/typec/ucsi/Makefile +++ b/drivers/usb/typec/ucsi/Makefile @@ -21,3 +21,5 @@ obj-$(CONFIG_UCSI_ACPI) += ucsi_acpi.o obj-$(CONFIG_UCSI_CCG) += ucsi_ccg.o obj-$(CONFIG_UCSI_STM32G0) += ucsi_stm32g0.o obj-$(CONFIG_UCSI_PMIC_GLINK) += ucsi_glink.o +obj-$(CONFIG_CROS_EC_UCSI) += cros_ec_ucsi.o +obj-$(CONFIG_UCSI_LENOVO_YOGA_C630) += ucsi_yoga_c630.o diff --git a/drivers/usb/typec/ucsi/cros_ec_ucsi.c b/drivers/usb/typec/ucsi/cros_ec_ucsi.c new file mode 100644 index 000000000000..4ec1c6d22310 --- /dev/null +++ b/drivers/usb/typec/ucsi/cros_ec_ucsi.c @@ -0,0 +1,341 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * UCSI driver for ChromeOS EC + * + * Copyright 2024 Google LLC. + */ + +#include <linux/container_of.h> +#include <linux/dev_printk.h> +#include <linux/jiffies.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/platform_data/cros_ec_commands.h> +#include <linux/platform_data/cros_usbpd_notify.h> +#include <linux/platform_data/cros_ec_proto.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/wait.h> + +#include "ucsi.h" + +/* + * Maximum size in bytes of a UCSI message between AP and EC + */ +#define MAX_EC_DATA_SIZE 256 + +/* + * Maximum time in milliseconds the cros_ec_ucsi driver + * will wait for a response to a command or and ack. + */ +#define WRITE_TMO_MS 5000 + +/* Number of times to attempt recovery from a write timeout before giving up. */ +#define WRITE_TMO_CTR_MAX 5 + +struct cros_ucsi_data { + struct device *dev; + struct ucsi *ucsi; + + struct cros_ec_device *ec; + struct notifier_block nb; + struct work_struct work; + struct delayed_work write_tmo; + int tmo_counter; + + struct completion complete; + unsigned long flags; +}; + +static int cros_ucsi_read(struct ucsi *ucsi, unsigned int offset, void *val, + size_t val_len) +{ + struct cros_ucsi_data *udata = ucsi_get_drvdata(ucsi); + struct ec_params_ucsi_ppm_get req = { + .offset = offset, + .size = val_len, + }; + int ret; + + if (val_len > MAX_EC_DATA_SIZE) { + dev_err(udata->dev, "Can't read %zu bytes. Too big.\n", val_len); + return -EINVAL; + } + + ret = cros_ec_cmd(udata->ec, 0, EC_CMD_UCSI_PPM_GET, + &req, sizeof(req), val, val_len); + if (ret < 0) { + dev_warn(udata->dev, "Failed to send EC message UCSI_PPM_GET: error=%d\n", ret); + return ret; + } + return 0; +} + +static int cros_ucsi_read_version(struct ucsi *ucsi, u16 *version) +{ + return cros_ucsi_read(ucsi, UCSI_VERSION, version, sizeof(*version)); +} + +static int cros_ucsi_read_cci(struct ucsi *ucsi, u32 *cci) +{ + return cros_ucsi_read(ucsi, UCSI_CCI, cci, sizeof(*cci)); +} + +static int cros_ucsi_read_message_in(struct ucsi *ucsi, void *val, + size_t val_len) +{ + return cros_ucsi_read(ucsi, UCSI_MESSAGE_IN, val, val_len); +} + +static int cros_ucsi_async_control(struct ucsi *ucsi, u64 cmd) +{ + struct cros_ucsi_data *udata = ucsi_get_drvdata(ucsi); + u8 ec_buf[sizeof(struct ec_params_ucsi_ppm_set) + sizeof(cmd)]; + struct ec_params_ucsi_ppm_set *req = (struct ec_params_ucsi_ppm_set *) ec_buf; + int ret; + + req->offset = UCSI_CONTROL; + memcpy(req->data, &cmd, sizeof(cmd)); + ret = cros_ec_cmd(udata->ec, 0, EC_CMD_UCSI_PPM_SET, + req, sizeof(ec_buf), NULL, 0); + if (ret < 0) { + dev_warn(udata->dev, "Failed to send EC message UCSI_PPM_SET: error=%d\n", ret); + return ret; + } + return 0; +} + +static int cros_ucsi_sync_control(struct ucsi *ucsi, u64 cmd, u32 *cci, + void *data, size_t size) +{ + struct cros_ucsi_data *udata = ucsi_get_drvdata(ucsi); + int ret; + + ret = ucsi_sync_control_common(ucsi, cmd, cci, data, size); + switch (ret) { + case -EBUSY: + /* EC may return -EBUSY if CCI.busy is set. + * Convert this to a timeout. + */ + case -ETIMEDOUT: + /* Schedule recovery attempt when we timeout + * or tried to send a command while still busy. + */ + cancel_delayed_work_sync(&udata->write_tmo); + schedule_delayed_work(&udata->write_tmo, + msecs_to_jiffies(WRITE_TMO_MS)); + break; + case 0: + /* Successful write. Cancel any pending recovery work. */ + cancel_delayed_work_sync(&udata->write_tmo); + break; + } + + return ret; +} + +static const struct ucsi_operations cros_ucsi_ops = { + .read_version = cros_ucsi_read_version, + .read_cci = cros_ucsi_read_cci, + .read_message_in = cros_ucsi_read_message_in, + .async_control = cros_ucsi_async_control, + .sync_control = cros_ucsi_sync_control, +}; + +static void cros_ucsi_work(struct work_struct *work) +{ + struct cros_ucsi_data *udata = container_of(work, struct cros_ucsi_data, work); + u32 cci; + + if (cros_ucsi_read_cci(udata->ucsi, &cci)) + return; + + ucsi_notify_common(udata->ucsi, cci); +} + +static void cros_ucsi_write_timeout(struct work_struct *work) +{ + struct cros_ucsi_data *udata = + container_of(work, struct cros_ucsi_data, write_tmo.work); + u32 cci; + u64 cmd; + + if (cros_ucsi_read(udata->ucsi, UCSI_CCI, &cci, sizeof(cci))) { + dev_err(udata->dev, + "Reading CCI failed; no write timeout recovery possible.\n"); + return; + } + + if (cci & UCSI_CCI_BUSY) { + udata->tmo_counter++; + + if (udata->tmo_counter <= WRITE_TMO_CTR_MAX) + schedule_delayed_work(&udata->write_tmo, + msecs_to_jiffies(WRITE_TMO_MS)); + else + dev_err(udata->dev, + "PPM unresponsive - too many write timeouts.\n"); + + return; + } + + /* No longer busy means we can reset our timeout counter. */ + udata->tmo_counter = 0; + + /* Need to ack previous command which may have timed out. */ + if (cci & UCSI_CCI_COMMAND_COMPLETE) { + cmd = UCSI_ACK_CC_CI | UCSI_ACK_COMMAND_COMPLETE; + cros_ucsi_async_control(udata->ucsi, cmd); + + /* Check again after a few seconds that the system has + * recovered to make sure our async write above was successful. + */ + schedule_delayed_work(&udata->write_tmo, + msecs_to_jiffies(WRITE_TMO_MS)); + return; + } + + /* We recovered from a previous timeout. Treat this as a recovery from + * suspend and call resume. + */ + ucsi_resume(udata->ucsi); +} + +static int cros_ucsi_event(struct notifier_block *nb, + unsigned long host_event, void *_notify) +{ + struct cros_ucsi_data *udata = container_of(nb, struct cros_ucsi_data, nb); + + if (host_event & PD_EVENT_INIT) { + /* Late init event received from ChromeOS EC. Treat this as a + * system resume to re-enable communication with the PPM. + */ + dev_dbg(udata->dev, "Late PD init received\n"); + ucsi_resume(udata->ucsi); + } + + if (host_event & PD_EVENT_PPM) { + dev_dbg(udata->dev, "UCSI notification received\n"); + flush_work(&udata->work); + schedule_work(&udata->work); + } + + return NOTIFY_OK; +} + +static void cros_ucsi_destroy(struct cros_ucsi_data *udata) +{ + cros_usbpd_unregister_notify(&udata->nb); + cancel_delayed_work_sync(&udata->write_tmo); + cancel_work_sync(&udata->work); + ucsi_destroy(udata->ucsi); +} + +static int cros_ucsi_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct cros_ec_dev *ec_data = dev_get_drvdata(dev->parent); + struct cros_ucsi_data *udata; + int ret; + + udata = devm_kzalloc(dev, sizeof(*udata), GFP_KERNEL); + if (!udata) + return -ENOMEM; + + udata->dev = dev; + + udata->ec = ec_data->ec_dev; + if (!udata->ec) + return dev_err_probe(dev, -ENODEV, "couldn't find parent EC device\n"); + + platform_set_drvdata(pdev, udata); + + INIT_WORK(&udata->work, cros_ucsi_work); + INIT_DELAYED_WORK(&udata->write_tmo, cros_ucsi_write_timeout); + init_completion(&udata->complete); + + udata->ucsi = ucsi_create(dev, &cros_ucsi_ops); + if (IS_ERR(udata->ucsi)) + return dev_err_probe(dev, PTR_ERR(udata->ucsi), "failed to allocate UCSI instance\n"); + + ucsi_set_drvdata(udata->ucsi, udata); + + udata->nb.notifier_call = cros_ucsi_event; + ret = cros_usbpd_register_notify(&udata->nb); + if (ret) { + dev_err_probe(dev, ret, "failed to register notifier\n"); + ucsi_destroy(udata->ucsi); + return ret; + } + + ret = ucsi_register(udata->ucsi); + if (ret) { + dev_err_probe(dev, ret, "failed to register UCSI\n"); + cros_ucsi_destroy(udata); + return ret; + } + + return 0; +} + +static void cros_ucsi_remove(struct platform_device *dev) +{ + struct cros_ucsi_data *udata = platform_get_drvdata(dev); + + ucsi_unregister(udata->ucsi); + cros_ucsi_destroy(udata); +} + +static int __maybe_unused cros_ucsi_suspend(struct device *dev) +{ + struct cros_ucsi_data *udata = dev_get_drvdata(dev); + + cancel_delayed_work_sync(&udata->write_tmo); + cancel_work_sync(&udata->work); + + return 0; +} + +static void __maybe_unused cros_ucsi_complete(struct device *dev) +{ + struct cros_ucsi_data *udata = dev_get_drvdata(dev); + + ucsi_resume(udata->ucsi); +} + +/* + * UCSI protocol is also used on ChromeOS platforms which reply on + * cros_ec_lpc.c driver for communication with embedded controller (EC). + * On such platforms communication with the EC is not available until + * the .complete() callback of the cros_ec_lpc driver is executed. + * For this reason we delay ucsi_resume() until the .complete() stage + * otherwise UCSI SET_NOTIFICATION_ENABLE command will fail and we won't + * receive any UCSI notifications from the EC where PPM is implemented. + */ +static const struct dev_pm_ops cros_ucsi_pm_ops = { +#ifdef CONFIG_PM_SLEEP + .suspend = cros_ucsi_suspend, + .complete = cros_ucsi_complete, +#endif +}; + +static const struct platform_device_id cros_ucsi_id[] = { + { KBUILD_MODNAME, 0 }, + {} +}; +MODULE_DEVICE_TABLE(platform, cros_ucsi_id); + +static struct platform_driver cros_ucsi_driver = { + .driver = { + .name = KBUILD_MODNAME, + .pm = &cros_ucsi_pm_ops, + }, + .id_table = cros_ucsi_id, + .probe = cros_ucsi_probe, + .remove = cros_ucsi_remove, +}; + +module_platform_driver(cros_ucsi_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("UCSI driver for ChromeOS EC"); diff --git a/drivers/usb/typec/ucsi/debugfs.c b/drivers/usb/typec/ucsi/debugfs.c index f67733cecfdf..eae2b18a2d8a 100644 --- a/drivers/usb/typec/ucsi/debugfs.c +++ b/drivers/usb/typec/ucsi/debugfs.c @@ -28,10 +28,12 @@ static int ucsi_cmd(void *data, u64 val) ucsi->debugfs->status = 0; switch (UCSI_COMMAND(val)) { - case UCSI_SET_UOM: + case UCSI_SET_CCOM: case UCSI_SET_UOR: case UCSI_SET_PDR: case UCSI_CONNECTOR_RESET: + case UCSI_SET_SINK_PATH: + case UCSI_SET_NEW_CAM: ret = ucsi_send_command(ucsi, val, NULL, 0); break; case UCSI_GET_CAPABILITY: @@ -41,6 +43,9 @@ static int ucsi_cmd(void *data, u64 val) case UCSI_GET_PDOS: case UCSI_GET_CABLE_PROPERTY: case UCSI_GET_CONNECTOR_STATUS: + case UCSI_GET_ERROR_STATUS: + case UCSI_GET_CAM_CS: + case UCSI_GET_LPM_PPM_INFO: ret = ucsi_send_command(ucsi, val, &ucsi->debugfs->response, sizeof(ucsi->debugfs->response)); diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c index d9d3c91125ca..8aae80b457d7 100644 --- a/drivers/usb/typec/ucsi/displayport.c +++ b/drivers/usb/typec/ucsi/displayport.c @@ -54,7 +54,8 @@ static int ucsi_displayport_enter(struct typec_altmode *alt, u32 *vdo) u8 cur = 0; int ret; - mutex_lock(&dp->con->lock); + if (!ucsi_con_mutex_lock(dp->con)) + return -ENOTCONN; if (!dp->override && dp->initialized) { const struct typec_altmode *p = typec_altmode_get_partner(alt); @@ -100,7 +101,7 @@ static int ucsi_displayport_enter(struct typec_altmode *alt, u32 *vdo) schedule_work(&dp->work); ret = 0; err_unlock: - mutex_unlock(&dp->con->lock); + ucsi_con_mutex_unlock(dp->con); return ret; } @@ -112,7 +113,8 @@ static int ucsi_displayport_exit(struct typec_altmode *alt) u64 command; int ret = 0; - mutex_lock(&dp->con->lock); + if (!ucsi_con_mutex_lock(dp->con)) + return -ENOTCONN; if (!dp->override) { const struct typec_altmode *p = typec_altmode_get_partner(alt); @@ -144,7 +146,7 @@ static int ucsi_displayport_exit(struct typec_altmode *alt) schedule_work(&dp->work); out_unlock: - mutex_unlock(&dp->con->lock); + ucsi_con_mutex_unlock(dp->con); return ret; } @@ -202,20 +204,21 @@ static int ucsi_displayport_vdm(struct typec_altmode *alt, int cmd = PD_VDO_CMD(header); int svdm_version; - mutex_lock(&dp->con->lock); + if (!ucsi_con_mutex_lock(dp->con)) + return -ENOTCONN; if (!dp->override && dp->initialized) { const struct typec_altmode *p = typec_altmode_get_partner(alt); dev_warn(&p->dev, "firmware doesn't support alternate mode overriding\n"); - mutex_unlock(&dp->con->lock); + ucsi_con_mutex_unlock(dp->con); return -EOPNOTSUPP; } svdm_version = typec_altmode_get_svdm_version(alt); if (svdm_version < 0) { - mutex_unlock(&dp->con->lock); + ucsi_con_mutex_unlock(dp->con); return svdm_version; } @@ -259,7 +262,7 @@ static int ucsi_displayport_vdm(struct typec_altmode *alt, break; } - mutex_unlock(&dp->con->lock); + ucsi_con_mutex_unlock(dp->con); return 0; } @@ -275,8 +278,6 @@ static void ucsi_displayport_work(struct work_struct *work) struct ucsi_dp *dp = container_of(work, struct ucsi_dp, work); int ret; - mutex_lock(&dp->con->lock); - ret = typec_altmode_vdm(dp->alt, dp->header, dp->vdo_data, dp->vdo_size); if (ret) @@ -285,8 +286,6 @@ static void ucsi_displayport_work(struct work_struct *work) dp->vdo_data = NULL; dp->vdo_size = 0; dp->header = 0; - - mutex_unlock(&dp->con->lock); } void ucsi_displayport_remove_partner(struct typec_altmode *alt) @@ -300,6 +299,8 @@ void ucsi_displayport_remove_partner(struct typec_altmode *alt) if (!dp) return; + cancel_work_sync(&dp->work); + dp->data.conf = 0; dp->data.status = 0; dp->initialized = false; @@ -337,7 +338,7 @@ struct typec_altmode *ucsi_register_displayport(struct ucsi_connector *con, dp->con = con; dp->alt = alt; - alt->ops = &ucsi_displayport_ops; + typec_altmode_set_ops(alt, &ucsi_displayport_ops); typec_altmode_set_drvdata(alt, dp); return alt; diff --git a/drivers/usb/typec/ucsi/psy.c b/drivers/usb/typec/ucsi/psy.c index b35c6e07911e..62ac69730405 100644 --- a/drivers/usb/typec/ucsi/psy.c +++ b/drivers/usb/typec/ucsi/psy.c @@ -20,6 +20,7 @@ enum ucsi_psy_online_states { }; static enum power_supply_property ucsi_psy_props[] = { + POWER_SUPPLY_PROP_CHARGE_TYPE, POWER_SUPPLY_PROP_USB_TYPE, POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_VOLTAGE_MIN, @@ -54,8 +55,8 @@ static int ucsi_psy_get_online(struct ucsi_connector *con, union power_supply_propval *val) { val->intval = UCSI_PSY_OFFLINE; - if (con->status.flags & UCSI_CONSTAT_CONNECTED && - (con->status.flags & UCSI_CONSTAT_PWR_DIR) == TYPEC_SINK) + if (UCSI_CONSTAT(con, CONNECTED) && + (UCSI_CONSTAT(con, PWR_DIR) == TYPEC_SINK)) val->intval = UCSI_PSY_FIXED_ONLINE; return 0; } @@ -65,7 +66,7 @@ static int ucsi_psy_get_voltage_min(struct ucsi_connector *con, { u32 pdo; - switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PWR_OPMODE)) { case UCSI_CONSTAT_PWR_OPMODE_PD: pdo = con->src_pdos[0]; val->intval = pdo_fixed_voltage(pdo) * 1000; @@ -88,7 +89,7 @@ static int ucsi_psy_get_voltage_max(struct ucsi_connector *con, { u32 pdo; - switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PWR_OPMODE)) { case UCSI_CONSTAT_PWR_OPMODE_PD: if (con->num_pdos > 0) { pdo = con->src_pdos[con->num_pdos - 1]; @@ -116,7 +117,7 @@ static int ucsi_psy_get_voltage_now(struct ucsi_connector *con, int index; u32 pdo; - switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PWR_OPMODE)) { case UCSI_CONSTAT_PWR_OPMODE_PD: index = rdo_index(con->rdo); if (index > 0) { @@ -144,7 +145,7 @@ static int ucsi_psy_get_current_max(struct ucsi_connector *con, { u32 pdo; - switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PWR_OPMODE)) { case UCSI_CONSTAT_PWR_OPMODE_PD: if (con->num_pdos > 0) { pdo = con->src_pdos[con->num_pdos - 1]; @@ -172,9 +173,7 @@ static int ucsi_psy_get_current_max(struct ucsi_connector *con, static int ucsi_psy_get_current_now(struct ucsi_connector *con, union power_supply_propval *val) { - u16 flags = con->status.flags; - - if (UCSI_CONSTAT_PWR_OPMODE(flags) == UCSI_CONSTAT_PWR_OPMODE_PD) + if (UCSI_CONSTAT(con, PWR_OPMODE) == UCSI_CONSTAT_PWR_OPMODE_PD) val->intval = rdo_op_current(con->rdo) * 1000; else val->intval = 0; @@ -184,16 +183,43 @@ static int ucsi_psy_get_current_now(struct ucsi_connector *con, static int ucsi_psy_get_usb_type(struct ucsi_connector *con, union power_supply_propval *val) { - u16 flags = con->status.flags; - val->intval = POWER_SUPPLY_USB_TYPE_C; - if (flags & UCSI_CONSTAT_CONNECTED && - UCSI_CONSTAT_PWR_OPMODE(flags) == UCSI_CONSTAT_PWR_OPMODE_PD) + if (UCSI_CONSTAT(con, CONNECTED) && + UCSI_CONSTAT(con, PWR_OPMODE) == UCSI_CONSTAT_PWR_OPMODE_PD) val->intval = POWER_SUPPLY_USB_TYPE_PD; return 0; } +static int ucsi_psy_get_charge_type(struct ucsi_connector *con, union power_supply_propval *val) +{ + if (!(UCSI_CONSTAT(con, CONNECTED))) { + val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE; + return 0; + } + + /* The Battery Charging Cabability Status field is only valid in sink role. */ + if (UCSI_CONSTAT(con, PWR_DIR) != TYPEC_SINK) { + val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; + return 0; + } + + switch (UCSI_CONSTAT(con, BC_STATUS)) { + case UCSI_CONSTAT_BC_NOMINAL_CHARGING: + val->intval = POWER_SUPPLY_CHARGE_TYPE_STANDARD; + break; + case UCSI_CONSTAT_BC_SLOW_CHARGING: + case UCSI_CONSTAT_BC_TRICKLE_CHARGING: + val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; + break; + default: + val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE; + break; + } + + return 0; +} + static int ucsi_psy_get_prop(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -201,6 +227,8 @@ static int ucsi_psy_get_prop(struct power_supply *psy, struct ucsi_connector *con = power_supply_get_drvdata(psy); switch (psp) { + case POWER_SUPPLY_PROP_CHARGE_TYPE: + return ucsi_psy_get_charge_type(con, val); case POWER_SUPPLY_PROP_USB_TYPE: return ucsi_psy_get_usb_type(con, val); case POWER_SUPPLY_PROP_ONLINE: @@ -222,12 +250,6 @@ static int ucsi_psy_get_prop(struct power_supply *psy, } } -static enum power_supply_usb_type ucsi_psy_usb_types[] = { - POWER_SUPPLY_USB_TYPE_C, - POWER_SUPPLY_USB_TYPE_PD, - POWER_SUPPLY_USB_TYPE_PD_PPS, -}; - int ucsi_register_port_psy(struct ucsi_connector *con) { struct power_supply_config psy_cfg = {}; @@ -244,8 +266,9 @@ int ucsi_register_port_psy(struct ucsi_connector *con) con->psy_desc.name = psy_name; con->psy_desc.type = POWER_SUPPLY_TYPE_USB; - con->psy_desc.usb_types = ucsi_psy_usb_types; - con->psy_desc.num_usb_types = ARRAY_SIZE(ucsi_psy_usb_types); + con->psy_desc.usb_types = BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD) | + BIT(POWER_SUPPLY_USB_TYPE_PD_PPS); con->psy_desc.properties = ucsi_psy_props; con->psy_desc.num_properties = ARRAY_SIZE(ucsi_psy_props); con->psy_desc.get_property = ucsi_psy_get_prop; diff --git a/drivers/usb/typec/ucsi/trace.c b/drivers/usb/typec/ucsi/trace.c index cb62ad835761..596a9542d401 100644 --- a/drivers/usb/typec/ucsi/trace.c +++ b/drivers/usb/typec/ucsi/trace.c @@ -12,7 +12,7 @@ static const char * const ucsi_cmd_strs[] = { [UCSI_SET_NOTIFICATION_ENABLE] = "SET_NOTIFICATION_ENABLE", [UCSI_GET_CAPABILITY] = "GET_CAPABILITY", [UCSI_GET_CONNECTOR_CAPABILITY] = "GET_CONNECTOR_CAPABILITY", - [UCSI_SET_UOM] = "SET_UOM", + [UCSI_SET_CCOM] = "SET_CCOM", [UCSI_SET_UOR] = "SET_UOR", [UCSI_SET_PDM] = "SET_PDM", [UCSI_SET_PDR] = "SET_PDR", diff --git a/drivers/usb/typec/ucsi/trace.h b/drivers/usb/typec/ucsi/trace.h index a0d3a934d3d9..41701dee7056 100644 --- a/drivers/usb/typec/ucsi/trace.h +++ b/drivers/usb/typec/ucsi/trace.h @@ -40,8 +40,8 @@ DEFINE_EVENT(ucsi_log_command, ucsi_reset_ppm, ); DECLARE_EVENT_CLASS(ucsi_log_connector_status, - TP_PROTO(int port, struct ucsi_connector_status *status), - TP_ARGS(port, status), + TP_PROTO(int port, struct ucsi_connector *con), + TP_ARGS(port, con), TP_STRUCT__entry( __field(int, port) __field(u16, change) @@ -55,14 +55,14 @@ DECLARE_EVENT_CLASS(ucsi_log_connector_status, ), TP_fast_assign( __entry->port = port - 1; - __entry->change = status->change; - __entry->opmode = UCSI_CONSTAT_PWR_OPMODE(status->flags); - __entry->connected = !!(status->flags & UCSI_CONSTAT_CONNECTED); - __entry->pwr_dir = !!(status->flags & UCSI_CONSTAT_PWR_DIR); - __entry->partner_flags = UCSI_CONSTAT_PARTNER_FLAGS(status->flags); - __entry->partner_type = UCSI_CONSTAT_PARTNER_TYPE(status->flags); - __entry->request_data_obj = status->request_data_obj; - __entry->bc_status = UCSI_CONSTAT_BC_STATUS(status->pwr_status); + __entry->change = UCSI_CONSTAT(con, CHANGE); + __entry->opmode = UCSI_CONSTAT(con, PWR_OPMODE); + __entry->connected = UCSI_CONSTAT(con, CONNECTED); + __entry->pwr_dir = UCSI_CONSTAT(con, PWR_DIR); + __entry->partner_flags = UCSI_CONSTAT(con, PARTNER_FLAGS); + __entry->partner_type = UCSI_CONSTAT(con, PARTNER_TYPE); + __entry->request_data_obj = UCSI_CONSTAT(con, RDO); + __entry->bc_status = UCSI_CONSTAT(con, BC_STATUS); ), TP_printk("port%d status: change=%04x, opmode=%x, connected=%d, " "sourcing=%d, partner_flags=%x, partner_type=%x, " @@ -73,13 +73,13 @@ DECLARE_EVENT_CLASS(ucsi_log_connector_status, ); DEFINE_EVENT(ucsi_log_connector_status, ucsi_connector_change, - TP_PROTO(int port, struct ucsi_connector_status *status), - TP_ARGS(port, status) + TP_PROTO(int port, struct ucsi_connector *con), + TP_ARGS(port, con) ); DEFINE_EVENT(ucsi_log_connector_status, ucsi_register_port, - TP_PROTO(int port, struct ucsi_connector_status *status), - TP_ARGS(port, status) + TP_PROTO(int port, struct ucsi_connector *con), + TP_ARGS(port, con) ); DECLARE_EVENT_CLASS(ucsi_log_register_altmode, diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index bd6ae92aa39e..01ce858a1a2b 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -25,7 +25,7 @@ * difficult to estimate the time it takes for the system to process the command * before it is actually passed to the PPM. */ -#define UCSI_TIMEOUT_MS 5000 +#define UCSI_TIMEOUT_MS 10000 /* * UCSI_SWAP_TIMEOUT_MS - Timeout for role swap requests @@ -36,61 +36,123 @@ */ #define UCSI_SWAP_TIMEOUT_MS 5000 -static int ucsi_read_message_in(struct ucsi *ucsi, void *buf, - size_t buf_size) +void ucsi_notify_common(struct ucsi *ucsi, u32 cci) { - /* - * Below UCSI 2.0, MESSAGE_IN was limited to 16 bytes. Truncate the - * reads here. - */ - if (ucsi->version <= UCSI_VERSION_1_2) - buf_size = clamp(buf_size, 0, 16); + /* Ignore bogus data in CCI if busy indicator is set. */ + if (cci & UCSI_CCI_BUSY) + return; + + if (UCSI_CCI_CONNECTOR(cci)) + ucsi_connector_change(ucsi, UCSI_CCI_CONNECTOR(cci)); + + if (cci & UCSI_CCI_ACK_COMPLETE && + test_and_clear_bit(ACK_PENDING, &ucsi->flags)) + complete(&ucsi->complete); - return ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, buf, buf_size); + if (cci & UCSI_CCI_COMMAND_COMPLETE && + test_and_clear_bit(COMMAND_PENDING, &ucsi->flags)) + complete(&ucsi->complete); } +EXPORT_SYMBOL_GPL(ucsi_notify_common); -static int ucsi_acknowledge_command(struct ucsi *ucsi) +int ucsi_sync_control_common(struct ucsi *ucsi, u64 command, u32 *cci, + void *data, size_t size) { - u64 ctrl; + bool ack = UCSI_COMMAND(command) == UCSI_ACK_CC_CI; + int ret; - ctrl = UCSI_ACK_CC_CI; - ctrl |= UCSI_ACK_COMMAND_COMPLETE; + if (ack) + set_bit(ACK_PENDING, &ucsi->flags); + else + set_bit(COMMAND_PENDING, &ucsi->flags); + + reinit_completion(&ucsi->complete); + + ret = ucsi->ops->async_control(ucsi, command); + if (ret) + goto out_clear_bit; + + if (!wait_for_completion_timeout(&ucsi->complete, 5 * HZ)) + ret = -ETIMEDOUT; + +out_clear_bit: + if (ack) + clear_bit(ACK_PENDING, &ucsi->flags); + else + clear_bit(COMMAND_PENDING, &ucsi->flags); + + if (!ret && cci) + ret = ucsi->ops->read_cci(ucsi, cci); + + if (!ret && data && + (*cci & UCSI_CCI_COMMAND_COMPLETE)) + ret = ucsi->ops->read_message_in(ucsi, data, size); - return ucsi->ops->sync_write(ucsi, UCSI_CONTROL, &ctrl, sizeof(ctrl)); + return ret; } +EXPORT_SYMBOL_GPL(ucsi_sync_control_common); -static int ucsi_acknowledge_connector_change(struct ucsi *ucsi) +static int ucsi_acknowledge(struct ucsi *ucsi, bool conn_ack) { u64 ctrl; ctrl = UCSI_ACK_CC_CI; - ctrl |= UCSI_ACK_CONNECTOR_CHANGE; + ctrl |= UCSI_ACK_COMMAND_COMPLETE; + if (conn_ack) { + clear_bit(EVENT_PENDING, &ucsi->flags); + ctrl |= UCSI_ACK_CONNECTOR_CHANGE; + } - return ucsi->ops->sync_write(ucsi, UCSI_CONTROL, &ctrl, sizeof(ctrl)); + return ucsi->ops->sync_control(ucsi, ctrl, NULL, NULL, 0); } -static int ucsi_exec_command(struct ucsi *ucsi, u64 command); - -static int ucsi_read_error(struct ucsi *ucsi) +static int ucsi_run_command(struct ucsi *ucsi, u64 command, u32 *cci, + void *data, size_t size, bool conn_ack) { - u16 error; - int ret; + int ret, err; + + *cci = 0; + + if (size > UCSI_MAX_DATA_LENGTH(ucsi)) + return -EINVAL; + + ret = ucsi->ops->sync_control(ucsi, command, cci, data, size); - /* Acknowledge the command that failed */ - ret = ucsi_acknowledge_command(ucsi); + if (*cci & UCSI_CCI_BUSY) + return ucsi_run_command(ucsi, UCSI_CANCEL, cci, NULL, 0, false) ?: -EBUSY; if (ret) return ret; - ret = ucsi_exec_command(ucsi, UCSI_GET_ERROR_STATUS); - if (ret < 0) - return ret; + if (!(*cci & UCSI_CCI_COMMAND_COMPLETE)) + return -EIO; - ret = ucsi_read_message_in(ucsi, &error, sizeof(error)); + if (*cci & UCSI_CCI_NOT_SUPPORTED) + err = -EOPNOTSUPP; + else if (*cci & UCSI_CCI_ERROR) + err = -EIO; + else + err = 0; + + /* + * Don't ACK connection change if there was an error. + */ + ret = ucsi_acknowledge(ucsi, err ? false : conn_ack); if (ret) return ret; - ret = ucsi_acknowledge_command(ucsi); - if (ret) + return err ?: UCSI_CCI_LENGTH(*cci); +} + +static int ucsi_read_error(struct ucsi *ucsi, u8 connector_num) +{ + u64 command; + u16 error; + u32 cci; + int ret; + + command = UCSI_GET_ERROR_STATUS | UCSI_CONNECTOR_NUMBER(connector_num); + ret = ucsi_run_command(ucsi, command, &cci, &error, sizeof(error), false); + if (ret < 0) return ret; switch (error) { @@ -123,6 +185,12 @@ static int ucsi_read_error(struct ucsi *ucsi) case UCSI_ERROR_SWAP_REJECTED: dev_warn(ucsi->dev, "Swap rejected\n"); break; + case UCSI_ERROR_REVERSE_CURRENT_PROTECTION: + dev_warn(ucsi->dev, "Reverse Current Protection detected\n"); + break; + case UCSI_ERROR_SET_SINK_PATH_REJECTED: + dev_warn(ucsi->dev, "Set Sink Path rejected\n"); + break; case UCSI_ERROR_UNDEFINED: default: dev_err(ucsi->dev, "unknown error %u\n", error); @@ -132,74 +200,48 @@ static int ucsi_read_error(struct ucsi *ucsi) return -EIO; } -static int ucsi_exec_command(struct ucsi *ucsi, u64 cmd) +static int ucsi_send_command_common(struct ucsi *ucsi, u64 cmd, + void *data, size_t size, bool conn_ack) { + u8 connector_num; u32 cci; int ret; - ret = ucsi->ops->sync_write(ucsi, UCSI_CONTROL, &cmd, sizeof(cmd)); - if (ret) - return ret; - - ret = ucsi->ops->read(ucsi, UCSI_CCI, &cci, sizeof(cci)); - if (ret) - return ret; - - if (cmd != UCSI_CANCEL && cci & UCSI_CCI_BUSY) - return ucsi_exec_command(ucsi, UCSI_CANCEL); - - if (!(cci & UCSI_CCI_COMMAND_COMPLETE)) - return -EIO; - - if (cci & UCSI_CCI_NOT_SUPPORTED) { - if (ucsi_acknowledge_command(ucsi) < 0) - dev_err(ucsi->dev, - "ACK of unsupported command failed\n"); - return -EOPNOTSUPP; + if (ucsi->version > UCSI_VERSION_1_2) { + switch (UCSI_COMMAND(cmd)) { + case UCSI_GET_ALTERNATE_MODES: + connector_num = UCSI_GET_ALTMODE_GET_CONNECTOR_NUMBER(cmd); + break; + case UCSI_PPM_RESET: + case UCSI_CANCEL: + case UCSI_ACK_CC_CI: + case UCSI_SET_NOTIFICATION_ENABLE: + case UCSI_GET_CAPABILITY: + connector_num = 0; + break; + default: + connector_num = UCSI_DEFAULT_GET_CONNECTOR_NUMBER(cmd); + break; + } + } else { + connector_num = 0; } - if (cci & UCSI_CCI_ERROR) { - if (cmd == UCSI_GET_ERROR_STATUS) - return -EIO; - return ucsi_read_error(ucsi); - } + mutex_lock(&ucsi->ppm_lock); - if (cmd == UCSI_CANCEL && cci & UCSI_CCI_CANCEL_COMPLETE) { - ret = ucsi_acknowledge_command(ucsi); - return ret ? ret : -EBUSY; - } + ret = ucsi_run_command(ucsi, cmd, &cci, data, size, conn_ack); + + if (cci & UCSI_CCI_ERROR) + ret = ucsi_read_error(ucsi, connector_num); - return UCSI_CCI_LENGTH(cci); + mutex_unlock(&ucsi->ppm_lock); + return ret; } int ucsi_send_command(struct ucsi *ucsi, u64 command, void *data, size_t size) { - u8 length; - int ret; - - mutex_lock(&ucsi->ppm_lock); - - ret = ucsi_exec_command(ucsi, command); - if (ret < 0) - goto out; - - length = ret; - - if (data) { - ret = ucsi_read_message_in(ucsi, data, size); - if (ret) - goto out; - } - - ret = ucsi_acknowledge_command(ucsi); - if (ret) - goto out; - - ret = length; -out: - mutex_unlock(&ucsi->ppm_lock); - return ret; + return ucsi_send_command_common(ucsi, command, data, size, false); } EXPORT_SYMBOL_GPL(ucsi_send_command); @@ -611,6 +653,18 @@ static void ucsi_unregister_altmodes(struct ucsi_connector *con, u8 recipient) } } +static int ucsi_get_connector_status(struct ucsi_connector *con, bool conn_ack) +{ + u64 command = UCSI_GET_CONNECTOR_STATUS | UCSI_CONNECTOR_NUMBER(con->num); + size_t size = min(sizeof(con->status), + UCSI_MAX_DATA_LENGTH(con->ucsi)); + int ret; + + ret = ucsi_send_command_common(con->ucsi, command, &con->status, size, conn_ack); + + return ret < 0 ? ret : 0; +} + static int ucsi_read_pdos(struct ucsi_connector *con, enum typec_role role, int is_partner, u32 *pdos, int offset, int num_pdos) @@ -619,7 +673,9 @@ static int ucsi_read_pdos(struct ucsi_connector *con, u64 command; int ret; - if (ucsi->quirks & UCSI_NO_PARTNER_PDOS) + if (is_partner && + ucsi->quirks & UCSI_NO_PARTNER_PDOS && + (UCSI_CONSTAT(con, PWR_DIR) || !is_source(role))) return 0; command = UCSI_COMMAND(UCSI_GET_PDOS) | UCSI_CONNECTOR_NUMBER(con->num); @@ -638,9 +694,13 @@ static int ucsi_read_pdos(struct ucsi_connector *con, static int ucsi_get_pdos(struct ucsi_connector *con, enum typec_role role, int is_partner, u32 *pdos) { + struct ucsi *ucsi = con->ucsi; u8 num_pdos; int ret; + if (!(ucsi->cap.features & UCSI_CAP_PDO_DETAILS)) + return 0; + /* UCSI max payload means only getting at most 4 PDOs at a time */ ret = ucsi_read_pdos(con, role, is_partner, pdos, 0, UCSI_MAX_PDOS); if (ret < 0) @@ -674,104 +734,86 @@ static int ucsi_get_src_pdos(struct ucsi_connector *con) return ret; } -static int ucsi_read_identity(struct ucsi_connector *con, u8 recipient, - u8 offset, u8 bytes, void *resp) +static struct usb_power_delivery_capabilities *ucsi_get_pd_caps(struct ucsi_connector *con, + enum typec_role role, + bool is_partner) { - struct ucsi *ucsi = con->ucsi; - u64 command; + struct usb_power_delivery_capabilities_desc pd_caps; int ret; - command = UCSI_COMMAND(UCSI_GET_PD_MESSAGE) | - UCSI_CONNECTOR_NUMBER(con->num); - command |= UCSI_GET_PD_MESSAGE_RECIPIENT(recipient); - command |= UCSI_GET_PD_MESSAGE_OFFSET(offset); - command |= UCSI_GET_PD_MESSAGE_BYTES(bytes); - command |= UCSI_GET_PD_MESSAGE_TYPE(UCSI_GET_PD_MESSAGE_TYPE_IDENTITY); + ret = ucsi_get_pdos(con, role, is_partner, pd_caps.pdo); + if (ret <= 0) + return ERR_PTR(ret); - ret = ucsi_send_command(ucsi, command, resp, bytes); - if (ret < 0) - dev_err(ucsi->dev, "UCSI_GET_PD_MESSAGE failed (%d)\n", ret); + if (ret < PDO_MAX_OBJECTS) + pd_caps.pdo[ret] = 0; - return ret; + pd_caps.role = role; + + return usb_power_delivery_register_capabilities(is_partner ? con->partner_pd : con->pd, + &pd_caps); } -static int ucsi_get_identity(struct ucsi_connector *con, u8 recipient, - struct usb_pd_identity *id) +static int ucsi_get_pd_message(struct ucsi_connector *con, u8 recipient, + size_t bytes, void *data, u8 type) { - struct ucsi *ucsi = con->ucsi; - struct ucsi_pd_message_disc_id resp = {}; + size_t len = min(bytes, UCSI_MAX_DATA_LENGTH(con->ucsi)); + u64 command; + u8 offset; int ret; - if (ucsi->version < UCSI_VERSION_2_0) { - /* - * Before UCSI v2.0, MESSAGE_IN is 16 bytes which cannot fit - * the 28 byte identity response including the VDM header. - * First request the VDM header, ID Header VDO, Cert Stat VDO - * and Product VDO. - */ - ret = ucsi_read_identity(con, recipient, 0, 0x10, &resp); - if (ret < 0) - return ret; + for (offset = 0; offset < bytes; offset += len) { + len = min(len, bytes - offset); + command = UCSI_COMMAND(UCSI_GET_PD_MESSAGE) | UCSI_CONNECTOR_NUMBER(con->num); + command |= UCSI_GET_PD_MESSAGE_RECIPIENT(recipient); + command |= UCSI_GET_PD_MESSAGE_OFFSET(offset); + command |= UCSI_GET_PD_MESSAGE_BYTES(len); + command |= UCSI_GET_PD_MESSAGE_TYPE(type); - /* Then request Product Type VDO1 through Product Type VDO3. */ - ret = ucsi_read_identity(con, recipient, 0x10, 0xc, - &resp.vdo[0]); - if (ret < 0) - return ret; - - } else { - /* - * In UCSI v2.0 and after, MESSAGE_IN is large enough to request - * the large enough to request the full Discover Identity - * response at once. - */ - ret = ucsi_read_identity(con, recipient, 0x0, 0x1c, &resp); + ret = ucsi_send_command(con->ucsi, command, data + offset, len); if (ret < 0) return ret; } - id->id_header = resp.id_header; - id->cert_stat = resp.cert_stat; - id->product = resp.product; - id->vdo[0] = resp.vdo[0]; - id->vdo[1] = resp.vdo[1]; - id->vdo[2] = resp.vdo[2]; return 0; } static int ucsi_get_partner_identity(struct ucsi_connector *con) { + u32 vdo[7] = {}; int ret; - ret = ucsi_get_identity(con, UCSI_RECIPIENT_SOP, - &con->partner_identity); + ret = ucsi_get_pd_message(con, UCSI_RECIPIENT_SOP, sizeof(vdo), vdo, + UCSI_GET_PD_MESSAGE_TYPE_IDENTITY); if (ret < 0) return ret; + /* VDM Header is not part of struct usb_pd_identity, so dropping it. */ + con->partner_identity = *(struct usb_pd_identity *)&vdo[1]; + ret = typec_partner_set_identity(con->partner); - if (ret < 0) { - dev_err(con->ucsi->dev, "Failed to set partner identity (%d)\n", - ret); - } + if (ret < 0) + dev_err(con->ucsi->dev, "Failed to set partner identity (%d)\n", ret); return ret; } static int ucsi_get_cable_identity(struct ucsi_connector *con) { + u32 vdo[7] = {}; int ret; - ret = ucsi_get_identity(con, UCSI_RECIPIENT_SOP_P, - &con->cable_identity); + ret = ucsi_get_pd_message(con, UCSI_RECIPIENT_SOP_P, sizeof(vdo), vdo, + UCSI_GET_PD_MESSAGE_TYPE_IDENTITY); if (ret < 0) return ret; + con->cable_identity = *(struct usb_pd_identity *)&vdo[1]; + ret = typec_cable_set_identity(con->cable); - if (ret < 0) { - dev_err(con->ucsi->dev, "Failed to set cable identity (%d)\n", - ret); - } + if (ret < 0) + dev_err(con->ucsi->dev, "Failed to set cable identity (%d)\n", ret); return ret; } @@ -789,69 +831,63 @@ static int ucsi_check_altmodes(struct ucsi_connector *con) /* Ignoring the errors in this case. */ if (con->partner_altmode[0]) { num_partner_am = ucsi_get_num_altmode(con->partner_altmode); - if (num_partner_am > 0) - typec_partner_set_num_altmodes(con->partner, num_partner_am); + typec_partner_set_num_altmodes(con->partner, num_partner_am); ucsi_altmode_update_active(con); return 0; + } else { + typec_partner_set_num_altmodes(con->partner, 0); } return ret; } +static void ucsi_register_device_pdos(struct ucsi_connector *con) +{ + struct ucsi *ucsi = con->ucsi; + struct usb_power_delivery_desc desc = { ucsi->cap.pd_version }; + struct usb_power_delivery_capabilities *pd_cap; + + if (con->pd) + return; + + con->pd = usb_power_delivery_register(ucsi->dev, &desc); + + pd_cap = ucsi_get_pd_caps(con, TYPEC_SOURCE, false); + if (!IS_ERR(pd_cap)) + con->port_source_caps = pd_cap; + + pd_cap = ucsi_get_pd_caps(con, TYPEC_SINK, false); + if (!IS_ERR(pd_cap)) + con->port_sink_caps = pd_cap; + + typec_port_set_usb_power_delivery(con->port, con->pd); +} + static int ucsi_register_partner_pdos(struct ucsi_connector *con) { struct usb_power_delivery_desc desc = { con->ucsi->cap.pd_version }; - struct usb_power_delivery_capabilities_desc caps; struct usb_power_delivery_capabilities *cap; - int ret; if (con->partner_pd) return 0; - con->partner_pd = usb_power_delivery_register(NULL, &desc); + con->partner_pd = typec_partner_usb_power_delivery_register(con->partner, &desc); if (IS_ERR(con->partner_pd)) return PTR_ERR(con->partner_pd); - ret = ucsi_get_pdos(con, TYPEC_SOURCE, 1, caps.pdo); - if (ret > 0) { - if (ret < PDO_MAX_OBJECTS) - caps.pdo[ret] = 0; - - caps.role = TYPEC_SOURCE; - cap = usb_power_delivery_register_capabilities(con->partner_pd, &caps); - if (IS_ERR(cap)) - return PTR_ERR(cap); - - con->partner_source_caps = cap; - - ret = typec_partner_set_usb_power_delivery(con->partner, con->partner_pd); - if (ret) { - usb_power_delivery_unregister_capabilities(con->partner_source_caps); - return ret; - } - } - - ret = ucsi_get_pdos(con, TYPEC_SINK, 1, caps.pdo); - if (ret > 0) { - if (ret < PDO_MAX_OBJECTS) - caps.pdo[ret] = 0; + cap = ucsi_get_pd_caps(con, TYPEC_SOURCE, true); + if (IS_ERR(cap)) + return PTR_ERR(cap); - caps.role = TYPEC_SINK; + con->partner_source_caps = cap; - cap = usb_power_delivery_register_capabilities(con->partner_pd, &caps); - if (IS_ERR(cap)) - return PTR_ERR(cap); + cap = ucsi_get_pd_caps(con, TYPEC_SINK, true); + if (IS_ERR(cap)) + return PTR_ERR(cap); - con->partner_sink_caps = cap; + con->partner_sink_caps = cap; - ret = typec_partner_set_usb_power_delivery(con->partner, con->partner_pd); - if (ret) { - usb_power_delivery_unregister_capabilities(con->partner_sink_caps); - return ret; - } - } - - return 0; + return typec_partner_set_usb_power_delivery(con->partner, con->partner_pd); } static void ucsi_unregister_partner_pdos(struct ucsi_connector *con) @@ -893,10 +929,20 @@ static void ucsi_unregister_plug(struct ucsi_connector *con) static int ucsi_register_cable(struct ucsi_connector *con) { + struct ucsi_cable_property cable_prop; struct typec_cable *cable; struct typec_cable_desc desc = {}; + u64 command; + int ret; + + command = UCSI_GET_CABLE_PROPERTY | UCSI_CONNECTOR_NUMBER(con->num); + ret = ucsi_send_command(con->ucsi, command, &cable_prop, sizeof(cable_prop)); + if (ret < 0) { + dev_err(con->ucsi->dev, "GET_CABLE_PROPERTY failed (%d)\n", ret); + return ret; + } - switch (UCSI_CABLE_PROP_FLAG_PLUG_TYPE(con->cable_prop.flags)) { + switch (UCSI_CABLE_PROP_FLAG_PLUG_TYPE(cable_prop.flags)) { case UCSI_CABLE_PROPERTY_PLUG_TYPE_A: desc.type = USB_PLUG_TYPE_A; break; @@ -911,11 +957,12 @@ static int ucsi_register_cable(struct ucsi_connector *con) break; } - desc.identity = &con->cable_identity; - desc.active = !!(UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE & - con->cable_prop.flags); - desc.pd_revision = UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD( - con->cable_prop.flags); + if (con->ucsi->cap.features & UCSI_CAP_GET_PD_MESSAGE) + desc.identity = &con->cable_identity; + desc.active = !!(UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE & cable_prop.flags); + + if (con->ucsi->version >= UCSI_VERSION_2_1) + desc.pd_revision = UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD(cable_prop.flags); cable = typec_register_cable(con->port, &desc); if (IS_ERR(cable)) { @@ -940,15 +987,38 @@ static void ucsi_unregister_cable(struct ucsi_connector *con) con->cable = NULL; } +static int ucsi_check_connector_capability(struct ucsi_connector *con) +{ + u64 pd_revision; + u64 command; + int ret; + + if (!con->partner || con->ucsi->version < UCSI_VERSION_2_1) + return 0; + + command = UCSI_GET_CONNECTOR_CAPABILITY | UCSI_CONNECTOR_NUMBER(con->num); + ret = ucsi_send_command(con->ucsi, command, &con->cap, sizeof(con->cap)); + if (ret < 0) { + dev_err(con->ucsi->dev, "GET_CONNECTOR_CAPABILITY failed (%d)\n", ret); + return ret; + } + + pd_revision = UCSI_CONCAP(con, PARTNER_PD_REVISION_V2_1); + typec_partner_set_pd_revision(con->partner, UCSI_SPEC_REVISION_TO_BCD(pd_revision)); + + return ret; +} + static void ucsi_pwr_opmode_change(struct ucsi_connector *con) { - switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PWR_OPMODE)) { case UCSI_CONSTAT_PWR_OPMODE_PD: - con->rdo = con->status.request_data_obj; + con->rdo = UCSI_CONSTAT(con, RDO); typec_set_pwr_opmode(con->port, TYPEC_PWR_MODE_PD); ucsi_partner_task(con, ucsi_get_src_pdos, 30, 0); - ucsi_partner_task(con, ucsi_check_altmodes, 30, 0); + ucsi_partner_task(con, ucsi_check_altmodes, 30, HZ); ucsi_partner_task(con, ucsi_register_partner_pdos, 1, HZ); + ucsi_partner_task(con, ucsi_check_connector_capability, 1, HZ); break; case UCSI_CONSTAT_PWR_OPMODE_TYPEC1_5: con->rdo = 0; @@ -967,7 +1037,7 @@ static void ucsi_pwr_opmode_change(struct ucsi_connector *con) static int ucsi_register_partner(struct ucsi_connector *con) { - u8 pwr_opmode = UCSI_CONSTAT_PWR_OPMODE(con->status.flags); + u8 pwr_opmode = UCSI_CONSTAT(con, PWR_OPMODE); struct typec_partner_desc desc; struct typec_partner *partner; @@ -976,7 +1046,7 @@ static int ucsi_register_partner(struct ucsi_connector *con) memset(&desc, 0, sizeof(desc)); - switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PARTNER_TYPE)) { case UCSI_CONSTAT_PARTNER_TYPE_DEBUG: desc.accessory = TYPEC_ACCESSORY_DEBUG; break; @@ -987,9 +1057,17 @@ static int ucsi_register_partner(struct ucsi_connector *con) break; } - desc.identity = &con->partner_identity; + if (pwr_opmode == UCSI_CONSTAT_PWR_OPMODE_PD) + ucsi_register_device_pdos(con); + + if (con->ucsi->cap.features & UCSI_CAP_GET_PD_MESSAGE) + desc.identity = &con->partner_identity; desc.usb_pd = pwr_opmode == UCSI_CONSTAT_PWR_OPMODE_PD; - desc.pd_revision = UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV_AS_BCD(con->cap.flags); + + if (con->ucsi->version >= UCSI_VERSION_2_1) { + u64 pd_revision = UCSI_CONCAP(con, PARTNER_PD_REVISION_V2_1); + desc.pd_revision = UCSI_SPEC_REVISION_TO_BCD(pd_revision); + } partner = typec_register_partner(con->port, &desc); if (IS_ERR(partner)) { @@ -1001,6 +1079,13 @@ static int ucsi_register_partner(struct ucsi_connector *con) con->partner = partner; + if (con->ucsi->version >= UCSI_VERSION_3_0 && + UCSI_CONSTAT(con, PARTNER_FLAG_USB4_GEN4)) + typec_partner_set_usb_mode(partner, USB_MODE_USB4); + else if (con->ucsi->version >= UCSI_VERSION_2_0 && + UCSI_CONSTAT(con, PARTNER_FLAG_USB4_GEN3)) + typec_partner_set_usb_mode(partner, USB_MODE_USB4); + return 0; } @@ -1025,7 +1110,7 @@ static void ucsi_partner_change(struct ucsi_connector *con) enum usb_role u_role = USB_ROLE_NONE; int ret; - switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) { + switch (UCSI_CONSTAT(con, PARTNER_TYPE)) { case UCSI_CONSTAT_PARTNER_TYPE_UFP: case UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP: u_role = USB_ROLE_HOST; @@ -1041,8 +1126,8 @@ static void ucsi_partner_change(struct ucsi_connector *con) break; } - if (con->status.flags & UCSI_CONSTAT_CONNECTED) { - switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) { + if (UCSI_CONSTAT(con, CONNECTED)) { + switch (UCSI_CONSTAT(con, PARTNER_TYPE)) { case UCSI_CONSTAT_PARTNER_TYPE_DEBUG: typec_set_mode(con->port, TYPEC_MODE_DEBUG); break; @@ -1050,14 +1135,13 @@ static void ucsi_partner_change(struct ucsi_connector *con) typec_set_mode(con->port, TYPEC_MODE_AUDIO); break; default: - if (UCSI_CONSTAT_PARTNER_FLAGS(con->status.flags) == - UCSI_CONSTAT_PARTNER_FLAG_USB) + if (UCSI_CONSTAT(con, PARTNER_FLAG_USB)) typec_set_mode(con->port, TYPEC_STATE_USB); } } /* Only notify USB controller if partner supports USB data */ - if (!(UCSI_CONSTAT_PARTNER_FLAGS(con->status.flags) & UCSI_CONSTAT_PARTNER_FLAG_USB)) + if (!(UCSI_CONSTAT(con, PARTNER_FLAG_USB))) u_role = USB_ROLE_NONE; ret = usb_role_switch_set_role(con->usb_role_sw, u_role); @@ -1066,44 +1150,20 @@ static void ucsi_partner_change(struct ucsi_connector *con) con->num, u_role); } -static int ucsi_check_connector_capability(struct ucsi_connector *con) -{ - u64 command; - int ret; - - if (!con->partner || con->ucsi->version < UCSI_VERSION_2_0) - return 0; - - command = UCSI_GET_CONNECTOR_CAPABILITY | UCSI_CONNECTOR_NUMBER(con->num); - ret = ucsi_send_command(con->ucsi, command, &con->cap, sizeof(con->cap)); - if (ret < 0) { - dev_err(con->ucsi->dev, "GET_CONNECTOR_CAPABILITY failed (%d)\n", ret); - return ret; - } - - typec_partner_set_pd_revision(con->partner, - UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV_AS_BCD(con->cap.flags)); - - return ret; -} - static int ucsi_check_connection(struct ucsi_connector *con) { - u8 prev_flags = con->status.flags; - u64 command; + u8 prev_state = UCSI_CONSTAT(con, CONNECTED); int ret; - command = UCSI_GET_CONNECTOR_STATUS | UCSI_CONNECTOR_NUMBER(con->num); - ret = ucsi_send_command(con->ucsi, command, &con->status, sizeof(con->status)); - if (ret < 0) { + ret = ucsi_get_connector_status(con, false); + if (ret) { dev_err(con->ucsi->dev, "GET_CONNECTOR_STATUS failed (%d)\n", ret); return ret; } - if (con->status.flags == prev_flags) - return 0; - - if (con->status.flags & UCSI_CONSTAT_CONNECTED) { + if (UCSI_CONSTAT(con, CONNECTED)) { + if (prev_state) + return 0; ucsi_register_partner(con); ucsi_pwr_opmode_change(con); ucsi_partner_change(con); @@ -1118,21 +1178,11 @@ static int ucsi_check_connection(struct ucsi_connector *con) static int ucsi_check_cable(struct ucsi_connector *con) { - u64 command; - int ret; + int ret, num_plug_am; if (con->cable) return 0; - command = UCSI_GET_CABLE_PROPERTY | UCSI_CONNECTOR_NUMBER(con->num); - ret = ucsi_send_command(con->ucsi, command, &con->cable_prop, - sizeof(con->cable_prop)); - if (ret < 0) { - dev_err(con->ucsi->dev, "GET_CABLE_PROPERTY failed (%d)\n", - ret); - return ret; - } - ret = ucsi_register_cable(con); if (ret < 0) return ret; @@ -1151,6 +1201,13 @@ static int ucsi_check_cable(struct ucsi_connector *con) ret = ucsi_register_altmodes(con, UCSI_RECIPIENT_SOP_P); if (ret < 0) return ret; + + if (con->plug_altmode[0]) { + num_plug_am = ucsi_get_num_altmode(con->plug_altmode); + typec_plug_set_num_altmodes(con->plug, num_plug_am); + } else { + typec_plug_set_num_altmodes(con->plug, 0); + } } return 0; @@ -1162,25 +1219,32 @@ static void ucsi_handle_connector_change(struct work_struct *work) work); struct ucsi *ucsi = con->ucsi; enum typec_role role; - u64 command; + u16 change; int ret; mutex_lock(&con->lock); - command = UCSI_GET_CONNECTOR_STATUS | UCSI_CONNECTOR_NUMBER(con->num); - ret = ucsi_send_command(ucsi, command, &con->status, sizeof(con->status)); - if (ret < 0) { + if (!test_and_set_bit(EVENT_PENDING, &ucsi->flags)) + dev_err_once(ucsi->dev, "%s entered without EVENT_PENDING\n", + __func__); + + ret = ucsi_get_connector_status(con, true); + if (ret) { dev_err(ucsi->dev, "%s: GET_CONNECTOR_STATUS failed (%d)\n", __func__, ret); clear_bit(EVENT_PENDING, &con->ucsi->flags); goto out_unlock; } - trace_ucsi_connector_change(con->num, &con->status); + trace_ucsi_connector_change(con->num, con); + + if (ucsi->ops->connector_status) + ucsi->ops->connector_status(con); - role = !!(con->status.flags & UCSI_CONSTAT_PWR_DIR); + change = UCSI_CONSTAT(con, CHANGE); + role = UCSI_CONSTAT(con, PWR_DIR); - if (con->status.change & UCSI_CONSTAT_POWER_DIR_CHANGE) { + if (change & UCSI_CONSTAT_POWER_DIR_CHANGE) { typec_set_pwr_role(con->port, role); /* Complete pending power role swap */ @@ -1188,33 +1252,32 @@ static void ucsi_handle_connector_change(struct work_struct *work) complete(&con->complete); } - if (con->status.change & UCSI_CONSTAT_CONNECT_CHANGE) { + if (change & UCSI_CONSTAT_CONNECT_CHANGE) { typec_set_pwr_role(con->port, role); ucsi_port_psy_changed(con); ucsi_partner_change(con); - if (con->status.flags & UCSI_CONSTAT_CONNECTED) { + if (UCSI_CONSTAT(con, CONNECTED)) { ucsi_register_partner(con); ucsi_partner_task(con, ucsi_check_connection, 1, HZ); - ucsi_partner_task(con, ucsi_check_connector_capability, 1, HZ); if (con->ucsi->cap.features & UCSI_CAP_GET_PD_MESSAGE) ucsi_partner_task(con, ucsi_get_partner_identity, 1, HZ); if (con->ucsi->cap.features & UCSI_CAP_CABLE_DETAILS) ucsi_partner_task(con, ucsi_check_cable, 1, HZ); - if (UCSI_CONSTAT_PWR_OPMODE(con->status.flags) == - UCSI_CONSTAT_PWR_OPMODE_PD) + if (UCSI_CONSTAT(con, PWR_OPMODE) == UCSI_CONSTAT_PWR_OPMODE_PD) { ucsi_partner_task(con, ucsi_register_partner_pdos, 1, HZ); + ucsi_partner_task(con, ucsi_check_connector_capability, 1, HZ); + } } else { ucsi_unregister_partner(con); } } - if (con->status.change & UCSI_CONSTAT_POWER_OPMODE_CHANGE || - con->status.change & UCSI_CONSTAT_POWER_LEVEL_CHANGE) + if (change & (UCSI_CONSTAT_POWER_OPMODE_CHANGE | UCSI_CONSTAT_POWER_LEVEL_CHANGE)) ucsi_pwr_opmode_change(con); - if (con->partner && con->status.change & UCSI_CONSTAT_PARTNER_CHANGE) { + if (con->partner && (change & UCSI_CONSTAT_PARTNER_CHANGE)) { ucsi_partner_change(con); /* Complete pending data role swap */ @@ -1222,16 +1285,11 @@ static void ucsi_handle_connector_change(struct work_struct *work) complete(&con->complete); } - if (con->status.change & UCSI_CONSTAT_CAM_CHANGE) - ucsi_partner_task(con, ucsi_check_altmodes, 1, 0); + if (change & UCSI_CONSTAT_CAM_CHANGE) + ucsi_partner_task(con, ucsi_check_altmodes, 1, HZ); - mutex_lock(&ucsi->ppm_lock); - clear_bit(EVENT_PENDING, &con->ucsi->flags); - ret = ucsi_acknowledge_connector_change(ucsi); - mutex_unlock(&ucsi->ppm_lock); - - if (ret) - dev_err(ucsi->dev, "%s: ACK failed (%d)", __func__, ret); + if (change & UCSI_CONSTAT_BC_CHANGE) + ucsi_port_psy_changed(con); out_unlock: mutex_unlock(&con->lock); @@ -1258,12 +1316,26 @@ EXPORT_SYMBOL_GPL(ucsi_connector_change); /* -------------------------------------------------------------------------- */ +/* + * Hard Reset bit field was defined with value 1 in UCSI spec version 1.0. + * Starting with spec version 1.1, Hard Reset bit field was removed from the + * CONNECTOR_RESET command, until spec 2.0 reintroduced it with value 0, so, in effect, + * the value to pass in to the command for a Hard Reset is different depending + * on the supported UCSI version by the LPM. + * + * For performing a Data Reset on LPMs supporting version 2.0 and greater, + * this function needs to be called with the second argument set to 0. + */ static int ucsi_reset_connector(struct ucsi_connector *con, bool hard) { u64 command; command = UCSI_CONNECTOR_RESET | UCSI_CONNECTOR_NUMBER(con->num); - command |= hard ? UCSI_CONNECTOR_RESET_HARD : 0; + + if (con->ucsi->version < UCSI_VERSION_1_1) + command |= hard ? UCSI_CONNECTOR_RESET_HARD_VER_1_0 : 0; + else if (con->ucsi->version >= UCSI_VERSION_2_0) + command |= hard ? 0 : UCSI_CONNECTOR_RESET_DATA_VER_2_0; return ucsi_send_command(con->ucsi, command, NULL, 0); } @@ -1277,7 +1349,7 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) mutex_lock(&ucsi->ppm_lock); - ret = ucsi->ops->read(ucsi, UCSI_CCI, &cci, sizeof(cci)); + ret = ucsi->ops->poll_cci(ucsi, &cci); if (ret < 0) goto out; @@ -1289,15 +1361,13 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) */ if (cci & UCSI_CCI_RESET_COMPLETE) { command = UCSI_SET_NOTIFICATION_ENABLE; - ret = ucsi->ops->async_write(ucsi, UCSI_CONTROL, &command, - sizeof(command)); + ret = ucsi->ops->async_control(ucsi, command); if (ret < 0) goto out; tmo = jiffies + msecs_to_jiffies(UCSI_TIMEOUT_MS); do { - ret = ucsi->ops->read(ucsi, UCSI_CCI, - &cci, sizeof(cci)); + ret = ucsi->ops->poll_cci(ucsi, &cci); if (ret < 0) goto out; if (cci & UCSI_CCI_COMMAND_COMPLETE) @@ -1311,8 +1381,7 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) } command = UCSI_PPM_RESET; - ret = ucsi->ops->async_write(ucsi, UCSI_CONTROL, &command, - sizeof(command)); + ret = ucsi->ops->async_control(ucsi, command); if (ret < 0) goto out; @@ -1324,20 +1393,20 @@ static int ucsi_reset_ppm(struct ucsi *ucsi) goto out; } - ret = ucsi->ops->read(ucsi, UCSI_CCI, &cci, sizeof(cci)); + /* Give the PPM time to process a reset before reading CCI */ + msleep(20); + + ret = ucsi->ops->poll_cci(ucsi, &cci); if (ret) goto out; /* If the PPM is still doing something else, reset it again. */ if (cci & ~UCSI_CCI_RESET_COMPLETE) { - ret = ucsi->ops->async_write(ucsi, UCSI_CONTROL, - &command, - sizeof(command)); + ret = ucsi->ops->async_control(ucsi, command); if (ret < 0) goto out; } - msleep(20); } while (!(cci & UCSI_CCI_RESET_COMPLETE)); out: @@ -1379,7 +1448,7 @@ static int ucsi_dr_swap(struct typec_port *port, enum typec_data_role role) goto out_unlock; } - partner_type = UCSI_CONSTAT_PARTNER_TYPE(con->status.flags); + partner_type = UCSI_CONSTAT(con, PARTNER_TYPE); if ((partner_type == UCSI_CONSTAT_PARTNER_TYPE_DFP && role == TYPEC_DEVICE) || (partner_type == UCSI_CONSTAT_PARTNER_TYPE_UFP && @@ -1423,7 +1492,7 @@ static int ucsi_pr_swap(struct typec_port *port, enum typec_role role) goto out_unlock; } - cur_role = !!(con->status.flags & UCSI_CONSTAT_PWR_DIR); + cur_role = UCSI_CONSTAT(con, PWR_DIR); if (cur_role == role) goto out_unlock; @@ -1446,8 +1515,7 @@ static int ucsi_pr_swap(struct typec_port *port, enum typec_role role) mutex_lock(&con->lock); /* Something has gone wrong while swapping the role */ - if (UCSI_CONSTAT_PWR_OPMODE(con->status.flags) != - UCSI_CONSTAT_PWR_OPMODE_PD) { + if (UCSI_CONSTAT(con, PWR_OPMODE) != UCSI_CONSTAT_PWR_OPMODE_PD) { ucsi_reset_connector(con, true); ret = -EPROTO; } @@ -1477,9 +1545,6 @@ static struct fwnode_handle *ucsi_find_fwnode(struct ucsi_connector *con) static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) { - struct usb_power_delivery_desc desc = { ucsi->cap.pd_version}; - struct usb_power_delivery_capabilities_desc pd_caps; - struct usb_power_delivery_capabilities *pd_cap; struct typec_capability *cap = &con->typec_cap; enum typec_accessory *accessory = cap->accessory; enum usb_role u_role = USB_ROLE_NONE; @@ -1518,19 +1583,18 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) if (ret < 0) goto out_unlock; - if (con->cap.op_mode & UCSI_CONCAP_OPMODE_DRP) + if (UCSI_CONCAP(con, OPMODE_DRP)) cap->data = TYPEC_PORT_DRD; - else if (con->cap.op_mode & UCSI_CONCAP_OPMODE_DFP) + else if (UCSI_CONCAP(con, OPMODE_DFP)) cap->data = TYPEC_PORT_DFP; - else if (con->cap.op_mode & UCSI_CONCAP_OPMODE_UFP) + else if (UCSI_CONCAP(con, OPMODE_UFP)) cap->data = TYPEC_PORT_UFP; - if ((con->cap.flags & UCSI_CONCAP_FLAG_PROVIDER) && - (con->cap.flags & UCSI_CONCAP_FLAG_CONSUMER)) + if (UCSI_CONCAP(con, PROVIDER) && UCSI_CONCAP(con, CONSUMER)) cap->type = TYPEC_PORT_DRP; - else if (con->cap.flags & UCSI_CONCAP_FLAG_PROVIDER) + else if (UCSI_CONCAP(con, PROVIDER)) cap->type = TYPEC_PORT_SRC; - else if (con->cap.flags & UCSI_CONCAP_FLAG_CONSUMER) + else if (UCSI_CONCAP(con, CONSUMER)) cap->type = TYPEC_PORT_SNK; cap->revision = ucsi->cap.typec_version; @@ -1538,14 +1602,24 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) cap->svdm_version = SVDM_VER_2_0; cap->prefer_role = TYPEC_NO_PREFERRED_ROLE; - if (con->cap.op_mode & UCSI_CONCAP_OPMODE_AUDIO_ACCESSORY) + if (UCSI_CONCAP(con, OPMODE_AUDIO_ACCESSORY)) *accessory++ = TYPEC_ACCESSORY_AUDIO; - if (con->cap.op_mode & UCSI_CONCAP_OPMODE_DEBUG_ACCESSORY) + if (UCSI_CONCAP(con, OPMODE_DEBUG_ACCESSORY)) *accessory = TYPEC_ACCESSORY_DEBUG; + if (UCSI_CONCAP_USB2_SUPPORT(con)) + cap->usb_capability |= USB_CAPABILITY_USB2; + if (UCSI_CONCAP_USB3_SUPPORT(con)) + cap->usb_capability |= USB_CAPABILITY_USB3; + if (UCSI_CONCAP_USB4_SUPPORT(con)) + cap->usb_capability |= USB_CAPABILITY_USB4; + cap->driver_data = con; cap->ops = &ucsi_ops; + if (ucsi->ops->update_connector) + ucsi->ops->update_connector(con); + ret = ucsi_register_port_psy(con); if (ret) goto out; @@ -1557,40 +1631,8 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) goto out; } - con->pd = usb_power_delivery_register(ucsi->dev, &desc); - - ret = ucsi_get_pdos(con, TYPEC_SOURCE, 0, pd_caps.pdo); - if (ret > 0) { - if (ret < PDO_MAX_OBJECTS) - pd_caps.pdo[ret] = 0; - - pd_caps.role = TYPEC_SOURCE; - pd_cap = usb_power_delivery_register_capabilities(con->pd, &pd_caps); - if (IS_ERR(pd_cap)) { - ret = PTR_ERR(pd_cap); - goto out; - } - - con->port_source_caps = pd_cap; - typec_port_set_usb_power_delivery(con->port, con->pd); - } - - memset(&pd_caps, 0, sizeof(pd_caps)); - ret = ucsi_get_pdos(con, TYPEC_SINK, 0, pd_caps.pdo); - if (ret > 0) { - if (ret < PDO_MAX_OBJECTS) - pd_caps.pdo[ret] = 0; - - pd_caps.role = TYPEC_SINK; - pd_cap = usb_power_delivery_register_capabilities(con->pd, &pd_caps); - if (IS_ERR(pd_cap)) { - ret = PTR_ERR(pd_cap); - goto out; - } - - con->port_sink_caps = pd_cap; - typec_port_set_usb_power_delivery(con->port, con->pd); - } + if (!(ucsi->quirks & UCSI_DELAY_DEVICE_PDOS)) + ucsi_register_device_pdos(con); /* Alternate modes */ ret = ucsi_register_altmodes(con, UCSI_RECIPIENT_CON); @@ -1601,16 +1643,16 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) } /* Get the status */ - command = UCSI_GET_CONNECTOR_STATUS | UCSI_CONNECTOR_NUMBER(con->num); - ret = ucsi_send_command(ucsi, command, &con->status, sizeof(con->status)); - if (ret < 0) { + ret = ucsi_get_connector_status(con, false); + if (ret) { dev_err(ucsi->dev, "con%d: failed to get status\n", con->num); - ret = 0; goto out; } - ret = 0; /* ucsi_send_command() returns length on success */ - switch (UCSI_CONSTAT_PARTNER_TYPE(con->status.flags)) { + if (ucsi->ops->connector_status) + ucsi->ops->connector_status(con); + + switch (UCSI_CONSTAT(con, PARTNER_TYPE)) { case UCSI_CONSTAT_PARTNER_TYPE_UFP: case UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP: u_role = USB_ROLE_HOST; @@ -1627,9 +1669,8 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) } /* Check if there is already something connected */ - if (con->status.flags & UCSI_CONSTAT_CONNECTED) { - typec_set_pwr_role(con->port, - !!(con->status.flags & UCSI_CONSTAT_PWR_DIR)); + if (UCSI_CONSTAT(con, CONNECTED)) { + typec_set_pwr_role(con->port, UCSI_CONSTAT(con, PWR_DIR)); ucsi_register_partner(con); ucsi_pwr_opmode_change(con); ucsi_port_psy_changed(con); @@ -1640,7 +1681,7 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) } /* Only notify USB controller if partner supports USB data */ - if (!(UCSI_CONSTAT_PARTNER_FLAGS(con->status.flags) & UCSI_CONSTAT_PARTNER_FLAG_USB)) + if (!(UCSI_CONSTAT(con, PARTNER_FLAG_USB))) u_role = USB_ROLE_NONE; ret = usb_role_switch_set_role(con->usb_role_sw, u_role); @@ -1650,14 +1691,14 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) ret = 0; } - if (con->partner && - UCSI_CONSTAT_PWR_OPMODE(con->status.flags) == - UCSI_CONSTAT_PWR_OPMODE_PD) { + if (con->partner && UCSI_CONSTAT(con, PWR_OPMODE) == UCSI_CONSTAT_PWR_OPMODE_PD) { + ucsi_register_device_pdos(con); ucsi_get_src_pdos(con); ucsi_check_altmodes(con); + ucsi_check_connector_capability(con); } - trace_ucsi_register_port(con->num, &con->status); + trace_ucsi_register_port(con->num, con); out: fwnode_handle_put(cap->fwnode); @@ -1672,6 +1713,44 @@ out_unlock: return ret; } +static u64 ucsi_get_supported_notifications(struct ucsi *ucsi) +{ + u16 features = ucsi->cap.features; + u64 ntfy = UCSI_ENABLE_NTFY_ALL; + + if (!(features & UCSI_CAP_ALT_MODE_DETAILS)) + ntfy &= ~UCSI_ENABLE_NTFY_CAM_CHANGE; + + if (!(features & UCSI_CAP_PDO_DETAILS)) + ntfy &= ~(UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE | + UCSI_ENABLE_NTFY_CAP_CHANGE); + + if (!(features & UCSI_CAP_EXT_SUPPLY_NOTIFICATIONS)) + ntfy &= ~UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE; + + if (!(features & UCSI_CAP_PD_RESET)) + ntfy &= ~UCSI_ENABLE_NTFY_PD_RESET_COMPLETE; + + if (ucsi->version <= UCSI_VERSION_1_2) + return ntfy; + + ntfy |= UCSI_ENABLE_NTFY_SINK_PATH_STS_CHANGE; + + if (features & UCSI_CAP_GET_ATTENTION_VDO) + ntfy |= UCSI_ENABLE_NTFY_ATTENTION; + + if (features & UCSI_CAP_FW_UPDATE_REQUEST) + ntfy |= UCSI_ENABLE_NTFY_LPM_FW_UPDATE_REQ; + + if (features & UCSI_CAP_SECURITY_REQUEST) + ntfy |= UCSI_ENABLE_NTFY_SECURITY_REQ_PARTNER; + + if (features & UCSI_CAP_SET_RETIMER_MODE) + ntfy |= UCSI_ENABLE_NTFY_SET_RETIMER_MODE; + + return ntfy; +} + /** * ucsi_init - Initialize UCSI interface * @ucsi: UCSI to be initialized @@ -1702,7 +1781,8 @@ static int ucsi_init(struct ucsi *ucsi) /* Get PPM capabilities */ command = UCSI_GET_CAPABILITY; - ret = ucsi_send_command(ucsi, command, &ucsi->cap, sizeof(ucsi->cap)); + ret = ucsi_send_command(ucsi, command, &ucsi->cap, + BITS_TO_BYTES(UCSI_GET_CAPABILITY_SIZE)); if (ret < 0) goto err_reset; @@ -1726,8 +1806,8 @@ static int ucsi_init(struct ucsi *ucsi) goto err_unregister; } - /* Enable all notifications */ - ntfy = UCSI_ENABLE_NTFY_ALL; + /* Enable all supported notifications */ + ntfy = ucsi_get_supported_notifications(ucsi); command = UCSI_SET_NOTIFICATION_ENABLE | ntfy; ret = ucsi_send_command(ucsi, command, NULL, 0); if (ret < 0) @@ -1737,7 +1817,7 @@ static int ucsi_init(struct ucsi *ucsi) ucsi->ntfy = ntfy; mutex_lock(&ucsi->ppm_lock); - ret = ucsi->ops->read(ucsi, UCSI_CCI, &cci, sizeof(cci)); + ret = ucsi->ops->read_cci(ucsi, &cci); mutex_unlock(&ucsi->ppm_lock); if (ret) return ret; @@ -1748,11 +1828,11 @@ static int ucsi_init(struct ucsi *ucsi) err_unregister: for (con = connector; con->port; con++) { + if (con->wq) + destroy_workqueue(con->wq); ucsi_unregister_partner(con); ucsi_unregister_altmodes(con, UCSI_RECIPIENT_CON); ucsi_unregister_port_psy(con); - if (con->wq) - destroy_workqueue(con->wq); usb_power_delivery_unregister_capabilities(con->port_sink_caps); con->port_sink_caps = NULL; @@ -1843,6 +1923,40 @@ void ucsi_set_drvdata(struct ucsi *ucsi, void *data) EXPORT_SYMBOL_GPL(ucsi_set_drvdata); /** + * ucsi_con_mutex_lock - Acquire the connector mutex + * @con: The connector interface to lock + * + * Returns true on success, false if the connector is disconnected + */ +bool ucsi_con_mutex_lock(struct ucsi_connector *con) +{ + bool mutex_locked = false; + bool connected = true; + + while (connected && !mutex_locked) { + mutex_locked = mutex_trylock(&con->lock) != 0; + connected = UCSI_CONSTAT(con, CONNECTED); + if (connected && !mutex_locked) + msleep(20); + } + + connected = connected && con->partner; + if (!connected && mutex_locked) + mutex_unlock(&con->lock); + + return connected; +} + +/** + * ucsi_con_mutex_unlock - Release the connector mutex + * @con: The connector interface to unlock + */ +void ucsi_con_mutex_unlock(struct ucsi_connector *con) +{ + mutex_unlock(&con->lock); +} + +/** * ucsi_create - Allocate UCSI instance * @dev: Device interface to the PPM (Platform Policy Manager) * @ops: I/O routines @@ -1851,7 +1965,9 @@ struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops) { struct ucsi *ucsi; - if (!ops || !ops->read || !ops->sync_write || !ops->async_write) + if (!ops || + !ops->read_version || !ops->read_cci || !ops->poll_cci || + !ops->read_message_in || !ops->sync_control || !ops->async_control) return ERR_PTR(-EINVAL); ucsi = kzalloc(sizeof(*ucsi), GFP_KERNEL); @@ -1861,6 +1977,7 @@ struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops) INIT_WORK(&ucsi->resume_work, ucsi_resume_work); INIT_DELAYED_WORK(&ucsi->work, ucsi_init_work); mutex_init(&ucsi->ppm_lock); + init_completion(&ucsi->complete); ucsi->dev = dev; ucsi->ops = ops; @@ -1887,8 +2004,7 @@ int ucsi_register(struct ucsi *ucsi) { int ret; - ret = ucsi->ops->read(ucsi, UCSI_VERSION, &ucsi->version, - sizeof(ucsi->version)); + ret = ucsi->ops->read_version(ucsi, &ucsi->version); if (ret) return ret; @@ -1927,17 +2043,13 @@ void ucsi_unregister(struct ucsi *ucsi) cancel_work_sync(&ucsi->resume_work); /* Disable notifications */ - ucsi->ops->async_write(ucsi, UCSI_CONTROL, &cmd, sizeof(cmd)); + ucsi->ops->async_control(ucsi, cmd); if (!ucsi->connector) return; for (i = 0; i < ucsi->cap.num_connectors; i++) { cancel_work_sync(&ucsi->connector[i].work); - ucsi_unregister_partner(&ucsi->connector[i]); - ucsi_unregister_altmodes(&ucsi->connector[i], - UCSI_RECIPIENT_CON); - ucsi_unregister_port_psy(&ucsi->connector[i]); if (ucsi->connector[i].wq) { struct ucsi_work *uwork; @@ -1953,6 +2065,11 @@ void ucsi_unregister(struct ucsi *ucsi) destroy_workqueue(ucsi->connector[i].wq); } + ucsi_unregister_partner(&ucsi->connector[i]); + ucsi_unregister_altmodes(&ucsi->connector[i], + UCSI_RECIPIENT_CON); + ucsi_unregister_port_psy(&ucsi->connector[i]); + usb_power_delivery_unregister_capabilities(ucsi->connector[i].port_sink_caps); ucsi->connector[i].port_sink_caps = NULL; usb_power_delivery_unregister_capabilities(ucsi->connector[i].port_source_caps); diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index 0e7c92eb1b22..9c5278a0c5d4 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -4,18 +4,21 @@ #define __DRIVER_USB_TYPEC_UCSI_H #include <linux/bitops.h> +#include <linux/bitmap.h> +#include <linux/completion.h> #include <linux/device.h> #include <linux/power_supply.h> #include <linux/types.h> #include <linux/usb/typec.h> #include <linux/usb/pd.h> #include <linux/usb/role.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> /* -------------------------------------------------------------------------- */ struct ucsi; struct ucsi_altmode; +struct ucsi_connector; struct dentry; /* UCSI offsets (Bytes) */ @@ -27,6 +30,8 @@ struct dentry; #define UCSIv2_MESSAGE_OUT 272 /* UCSI versions */ +#define UCSI_VERSION_1_0 0x0100 +#define UCSI_VERSION_1_1 0x0110 #define UCSI_VERSION_1_2 0x0120 #define UCSI_VERSION_2_0 0x0200 #define UCSI_VERSION_2_1 0x0210 @@ -55,24 +60,32 @@ struct dentry; /** * struct ucsi_operations - UCSI I/O operations - * @read: Read operation - * @sync_write: Blocking write operation - * @async_write: Non-blocking write operation + * @read_version: Read implemented UCSI version + * @read_cci: Read CCI register + * @poll_cci: Read CCI register while polling with notifications disabled + * @read_message_in: Read message data from UCSI + * @sync_control: Blocking control operation + * @async_control: Non-blocking control operation * @update_altmodes: Squashes duplicate DP altmodes + * @update_connector: Update connector capabilities before registering + * @connector_status: Updates connector status, called holding connector lock * * Read and write routines for UCSI interface. @sync_write must wait for the * Command Completion Event from the PPM before returning, and @async_write must * return immediately after sending the data to the PPM. */ struct ucsi_operations { - int (*read)(struct ucsi *ucsi, unsigned int offset, - void *val, size_t val_len); - int (*sync_write)(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len); - int (*async_write)(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len); + int (*read_version)(struct ucsi *ucsi, u16 *version); + int (*read_cci)(struct ucsi *ucsi, u32 *cci); + int (*poll_cci)(struct ucsi *ucsi, u32 *cci); + int (*read_message_in)(struct ucsi *ucsi, void *val, size_t val_len); + int (*sync_control)(struct ucsi *ucsi, u64 command, u32 *cci, + void *data, size_t size); + int (*async_control)(struct ucsi *ucsi, u64 command); bool (*update_altmodes)(struct ucsi *ucsi, struct ucsi_altmode *orig, struct ucsi_altmode *updated); + void (*update_connector)(struct ucsi_connector *con); + void (*connector_status)(struct ucsi_connector *con); }; struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops); @@ -81,56 +94,74 @@ int ucsi_register(struct ucsi *ucsi); void ucsi_unregister(struct ucsi *ucsi); void *ucsi_get_drvdata(struct ucsi *ucsi); void ucsi_set_drvdata(struct ucsi *ucsi, void *data); +bool ucsi_con_mutex_lock(struct ucsi_connector *con); +void ucsi_con_mutex_unlock(struct ucsi_connector *con); void ucsi_connector_change(struct ucsi *ucsi, u8 num); /* -------------------------------------------------------------------------- */ /* Commands */ -#define UCSI_PPM_RESET 0x01 -#define UCSI_CANCEL 0x02 -#define UCSI_CONNECTOR_RESET 0x03 -#define UCSI_ACK_CC_CI 0x04 -#define UCSI_SET_NOTIFICATION_ENABLE 0x05 -#define UCSI_GET_CAPABILITY 0x06 -#define UCSI_GET_CONNECTOR_CAPABILITY 0x07 -#define UCSI_SET_UOM 0x08 -#define UCSI_SET_UOR 0x09 -#define UCSI_SET_PDM 0x0a -#define UCSI_SET_PDR 0x0b -#define UCSI_GET_ALTERNATE_MODES 0x0c -#define UCSI_GET_CAM_SUPPORTED 0x0d -#define UCSI_GET_CURRENT_CAM 0x0e -#define UCSI_SET_NEW_CAM 0x0f -#define UCSI_GET_PDOS 0x10 -#define UCSI_GET_CABLE_PROPERTY 0x11 -#define UCSI_GET_CONNECTOR_STATUS 0x12 -#define UCSI_GET_ERROR_STATUS 0x13 -#define UCSI_GET_PD_MESSAGE 0x15 +#define UCSI_PPM_RESET 0x01 +#define UCSI_CANCEL 0x02 +#define UCSI_CONNECTOR_RESET 0x03 +#define UCSI_ACK_CC_CI 0x04 +#define UCSI_SET_NOTIFICATION_ENABLE 0x05 +#define UCSI_GET_CAPABILITY 0x06 +#define UCSI_GET_CAPABILITY_SIZE 128 +#define UCSI_GET_CONNECTOR_CAPABILITY 0x07 +#define UCSI_GET_CONNECTOR_CAPABILITY_SIZE 32 +#define UCSI_SET_CCOM 0x08 +#define UCSI_SET_UOR 0x09 +#define UCSI_SET_PDM 0x0a +#define UCSI_SET_PDR 0x0b +#define UCSI_GET_ALTERNATE_MODES 0x0c +#define UCSI_GET_CAM_SUPPORTED 0x0d +#define UCSI_GET_CURRENT_CAM 0x0e +#define UCSI_SET_NEW_CAM 0x0f +#define UCSI_GET_PDOS 0x10 +#define UCSI_GET_CABLE_PROPERTY 0x11 +#define UCSI_GET_CABLE_PROPERTY_SIZE 64 +#define UCSI_GET_CONNECTOR_STATUS 0x12 +#define UCSI_GET_CONNECTOR_STATUS_SIZE 152 +#define UCSI_GET_ERROR_STATUS 0x13 +#define UCSI_GET_PD_MESSAGE 0x15 +#define UCSI_GET_CAM_CS 0x18 +#define UCSI_SET_SINK_PATH 0x1c +#define UCSI_GET_LPM_PPM_INFO 0x22 #define UCSI_CONNECTOR_NUMBER(_num_) ((u64)(_num_) << 16) #define UCSI_COMMAND(_cmd_) ((_cmd_) & 0xff) +#define UCSI_GET_ALTMODE_GET_CONNECTOR_NUMBER(_cmd_) (((_cmd_) >> 24) & GENMASK(6, 0)) +#define UCSI_DEFAULT_GET_CONNECTOR_NUMBER(_cmd_) (((_cmd_) >> 16) & GENMASK(6, 0)) + /* CONNECTOR_RESET command bits */ -#define UCSI_CONNECTOR_RESET_HARD BIT(23) /* Deprecated in v1.1 */ +#define UCSI_CONNECTOR_RESET_HARD_VER_1_0 BIT(23) /* Deprecated in v1.1 */ +#define UCSI_CONNECTOR_RESET_DATA_VER_2_0 BIT(23) /* Redefined in v2.0 */ /* ACK_CC_CI bits */ #define UCSI_ACK_CONNECTOR_CHANGE BIT(16) #define UCSI_ACK_COMMAND_COMPLETE BIT(17) /* SET_NOTIFICATION_ENABLE command bits */ -#define UCSI_ENABLE_NTFY_CMD_COMPLETE BIT(16) -#define UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE BIT(17) -#define UCSI_ENABLE_NTFY_PWR_OPMODE_CHANGE BIT(18) -#define UCSI_ENABLE_NTFY_CAP_CHANGE BIT(21) -#define UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE BIT(22) -#define UCSI_ENABLE_NTFY_PD_RESET_COMPLETE BIT(23) -#define UCSI_ENABLE_NTFY_CAM_CHANGE BIT(24) -#define UCSI_ENABLE_NTFY_BAT_STATUS_CHANGE BIT(25) -#define UCSI_ENABLE_NTFY_PARTNER_CHANGE BIT(27) -#define UCSI_ENABLE_NTFY_PWR_DIR_CHANGE BIT(28) -#define UCSI_ENABLE_NTFY_CONNECTOR_CHANGE BIT(30) -#define UCSI_ENABLE_NTFY_ERROR BIT(31) +#define UCSI_ENABLE_NTFY_CMD_COMPLETE BIT_ULL(16) +#define UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE BIT_ULL(17) +#define UCSI_ENABLE_NTFY_PWR_OPMODE_CHANGE BIT_ULL(18) +#define UCSI_ENABLE_NTFY_ATTENTION BIT_ULL(19) +#define UCSI_ENABLE_NTFY_LPM_FW_UPDATE_REQ BIT_ULL(20) +#define UCSI_ENABLE_NTFY_CAP_CHANGE BIT_ULL(21) +#define UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE BIT_ULL(22) +#define UCSI_ENABLE_NTFY_PD_RESET_COMPLETE BIT_ULL(23) +#define UCSI_ENABLE_NTFY_CAM_CHANGE BIT_ULL(24) +#define UCSI_ENABLE_NTFY_BAT_STATUS_CHANGE BIT_ULL(25) +#define UCSI_ENABLE_NTFY_SECURITY_REQ_PARTNER BIT_ULL(26) +#define UCSI_ENABLE_NTFY_PARTNER_CHANGE BIT_ULL(27) +#define UCSI_ENABLE_NTFY_PWR_DIR_CHANGE BIT_ULL(28) +#define UCSI_ENABLE_NTFY_SET_RETIMER_MODE BIT_ULL(29) +#define UCSI_ENABLE_NTFY_CONNECTOR_CHANGE BIT_ULL(30) +#define UCSI_ENABLE_NTFY_ERROR BIT_ULL(31) +#define UCSI_ENABLE_NTFY_SINK_PATH_STS_CHANGE BIT_ULL(32) #define UCSI_ENABLE_NTFY_ALL 0xdbe70000 /* SET_UOR command bits */ @@ -188,6 +219,8 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num); #define UCSI_ERROR_HARD_RESET BIT(10) #define UCSI_ERROR_PPM_POLICY_CONFLICT BIT(11) #define UCSI_ERROR_SWAP_REJECTED BIT(12) +#define UCSI_ERROR_REVERSE_CURRENT_PROTECTION BIT(13) +#define UCSI_ERROR_SET_SINK_PATH_REJECTED BIT(14) #define UCSI_SET_NEW_CAM_ENTER(x) (((x) >> 23) & 0x1) #define UCSI_SET_NEW_CAM_GET_AM(x) (((x) >> 24) & 0xff) @@ -215,7 +248,13 @@ struct ucsi_capability { #define UCSI_CAP_CABLE_DETAILS BIT(5) #define UCSI_CAP_EXT_SUPPLY_NOTIFICATIONS BIT(6) #define UCSI_CAP_PD_RESET BIT(7) -#define UCSI_CAP_GET_PD_MESSAGE BIT(8) +#define UCSI_CAP_GET_PD_MESSAGE BIT(8) +#define UCSI_CAP_GET_ATTENTION_VDO BIT(9) +#define UCSI_CAP_FW_UPDATE_REQUEST BIT(10) +#define UCSI_CAP_NEGOTIATED_PWR_LEVEL_CHANGE BIT(11) +#define UCSI_CAP_SECURITY_REQUEST BIT(12) +#define UCSI_CAP_SET_RETIMER_MODE BIT(13) +#define UCSI_CAP_CHUNKING_SUPPORT BIT(14) u8 reserved_1; u8 num_alt_modes; u8 reserved_2; @@ -224,42 +263,6 @@ struct ucsi_capability { u16 typec_version; } __packed; -/* Data structure filled by PPM in response to GET_CONNECTOR_CAPABILITY cmd. */ -struct ucsi_connector_capability { - u8 op_mode; -#define UCSI_CONCAP_OPMODE_DFP BIT(0) -#define UCSI_CONCAP_OPMODE_UFP BIT(1) -#define UCSI_CONCAP_OPMODE_DRP BIT(2) -#define UCSI_CONCAP_OPMODE_AUDIO_ACCESSORY BIT(3) -#define UCSI_CONCAP_OPMODE_DEBUG_ACCESSORY BIT(4) -#define UCSI_CONCAP_OPMODE_USB2 BIT(5) -#define UCSI_CONCAP_OPMODE_USB3 BIT(6) -#define UCSI_CONCAP_OPMODE_ALT_MODE BIT(7) - u32 flags; -#define UCSI_CONCAP_FLAG_PROVIDER BIT(0) -#define UCSI_CONCAP_FLAG_CONSUMER BIT(1) -#define UCSI_CONCAP_FLAG_SWAP_TO_DFP BIT(2) -#define UCSI_CONCAP_FLAG_SWAP_TO_UFP BIT(3) -#define UCSI_CONCAP_FLAG_SWAP_TO_SRC BIT(4) -#define UCSI_CONCAP_FLAG_SWAP_TO_SINK BIT(5) -#define UCSI_CONCAP_FLAG_EX_OP_MODE(_f_) \ - (((_f_) & GENMASK(13, 6)) >> 6) -#define UCSI_CONCAP_EX_OP_MODE_USB4_GEN2 BIT(0) -#define UCSI_CONCAP_EX_OP_MODE_EPR_SRC BIT(1) -#define UCSI_CONCAP_EX_OP_MODE_EPR_SINK BIT(2) -#define UCSI_CONCAP_EX_OP_MODE_USB4_GEN3 BIT(3) -#define UCSI_CONCAP_EX_OP_MODE_USB4_GEN4 BIT(4) -#define UCSI_CONCAP_FLAG_MISC_CAPS(_f_) \ - (((_f_) & GENMASK(17, 14)) >> 14) -#define UCSI_CONCAP_MISC_CAP_FW_UPDATE BIT(0) -#define UCSI_CONCAP_MISC_CAP_SECURITY BIT(1) -#define UCSI_CONCAP_FLAG_REV_CURR_PROT_SUPPORT BIT(18) -#define UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV(_f_) \ - (((_f_) & GENMASK(20, 19)) >> 19) -#define UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV_AS_BCD(_f_) \ - UCSI_SPEC_REVISION_TO_BCD(UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV(_f_)) -} __packed; - struct ucsi_altmode { u16 svid; u32 mid; @@ -285,84 +288,143 @@ struct ucsi_cable_property { u8 latency; } __packed; -/* Data structure filled by PPM in response to GET_CONNECTOR_STATUS command. */ -struct ucsi_connector_status { - u16 change; -#define UCSI_CONSTAT_EXT_SUPPLY_CHANGE BIT(1) -#define UCSI_CONSTAT_POWER_OPMODE_CHANGE BIT(2) -#define UCSI_CONSTAT_PDOS_CHANGE BIT(5) -#define UCSI_CONSTAT_POWER_LEVEL_CHANGE BIT(6) -#define UCSI_CONSTAT_PD_RESET_COMPLETE BIT(7) -#define UCSI_CONSTAT_CAM_CHANGE BIT(8) -#define UCSI_CONSTAT_BC_CHANGE BIT(9) -#define UCSI_CONSTAT_PARTNER_CHANGE BIT(11) -#define UCSI_CONSTAT_POWER_DIR_CHANGE BIT(12) -#define UCSI_CONSTAT_CONNECT_CHANGE BIT(14) -#define UCSI_CONSTAT_ERROR BIT(15) - u16 flags; -#define UCSI_CONSTAT_PWR_OPMODE(_f_) ((_f_) & GENMASK(2, 0)) +/* Get Connector Capability Fields. */ +#define UCSI_CONCAP_OPMODE UCSI_DECLARE_BITFIELD(0, 0, 8) +#define UCSI_CONCAP_OPMODE_DFP UCSI_DECLARE_BITFIELD(0, 0, 1) +#define UCSI_CONCAP_OPMODE_UFP UCSI_DECLARE_BITFIELD(0, 1, 1) +#define UCSI_CONCAP_OPMODE_DRP UCSI_DECLARE_BITFIELD(0, 2, 1) +#define UCSI_CONCAP_OPMODE_AUDIO_ACCESSORY UCSI_DECLARE_BITFIELD(0, 3, 1) +#define UCSI_CONCAP_OPMODE_DEBUG_ACCESSORY UCSI_DECLARE_BITFIELD(0, 4, 1) +#define UCSI_CONCAP_OPMODE_USB2 UCSI_DECLARE_BITFIELD(0, 5, 1) +#define UCSI_CONCAP_OPMODE_USB3 UCSI_DECLARE_BITFIELD(0, 6, 1) +#define UCSI_CONCAP_OPMODE_ALT_MODE UCSI_DECLARE_BITFIELD(0, 7, 1) +#define UCSI_CONCAP_PROVIDER UCSI_DECLARE_BITFIELD(0, 8, 1) +#define UCSI_CONCAP_CONSUMER UCSI_DECLARE_BITFIELD(0, 9, 1) +#define UCSI_CONCAP_SWAP_TO_DFP_V1_1 UCSI_DECLARE_BITFIELD_V1_1(10, 1) +#define UCSI_CONCAP_SWAP_TO_UFP_V1_1 UCSI_DECLARE_BITFIELD_V1_1(11, 1) +#define UCSI_CONCAP_SWAP_TO_SRC_V1_1 UCSI_DECLARE_BITFIELD_V1_1(12, 1) +#define UCSI_CONCAP_SWAP_TO_SNK_V1_1 UCSI_DECLARE_BITFIELD_V1_1(13, 1) +#define UCSI_CONCAP_EXT_OPMODE_V2_0 UCSI_DECLARE_BITFIELD_V2_0(14, 8) +#define UCSI_CONCAP_EXT_OPMODE_USB4_GEN2_V2_0 UCSI_DECLARE_BITFIELD_V2_0(14, 1) +#define UCSI_CONCAP_EXT_OPMODE_EPR_SRC_V2_0 UCSI_DECLARE_BITFIELD_V2_0(15, 1) +#define UCSI_CONCAP_EXT_OPMODE_EPR_SINK_V2_0 UCSI_DECLARE_BITFIELD_V2_0(16, 1) +#define UCSI_CONCAP_EXT_OPMODE_USB4_GEN3_V2_0 UCSI_DECLARE_BITFIELD_V2_0(17, 1) +#define UCSI_CONCAP_EXT_OPMODE_USB4_GEN4_V2_0 UCSI_DECLARE_BITFIELD_V2_0(18, 1) +#define UCSI_CONCAP_MISC_V2_0 UCSI_DECLARE_BITFIELD_V2_0(22, 4) +#define UCSI_CONCAP_MISC_FW_UPDATE_V2_0 UCSI_DECLARE_BITFIELD_V2_0(22, 1) +#define UCSI_CONCAP_MISC_SECURITY_V2_0 UCSI_DECLARE_BITFIELD_V2_0(23, 1) +#define UCSI_CONCAP_REV_CURR_PROT_SUPPORT_V2_0 UCSI_DECLARE_BITFIELD_V2_0(26, 1) +#define UCSI_CONCAP_PARTNER_PD_REVISION_V2_1 UCSI_DECLARE_BITFIELD_V2_1(27, 2) + +/* Helpers for USB capability checks. */ +#define UCSI_CONCAP_USB2_SUPPORT(_con_) UCSI_CONCAP((_con_), OPMODE_USB2) +#define UCSI_CONCAP_USB3_SUPPORT(_con_) UCSI_CONCAP((_con_), OPMODE_USB3) +#define UCSI_CONCAP_USB4_SUPPORT(_con_) \ + ((_con_)->ucsi->version >= UCSI_VERSION_2_0 && \ + (UCSI_CONCAP((_con_), EXT_OPMODE_USB4_GEN2_V2_0) | \ + UCSI_CONCAP((_con_), EXT_OPMODE_USB4_GEN3_V2_0) | \ + UCSI_CONCAP((_con_), EXT_OPMODE_USB4_GEN4_V2_0))) + +/* Get Connector Status Fields. */ +#define UCSI_CONSTAT_CHANGE UCSI_DECLARE_BITFIELD(0, 0, 16) +#define UCSI_CONSTAT_PWR_OPMODE UCSI_DECLARE_BITFIELD(0, 16, 3) #define UCSI_CONSTAT_PWR_OPMODE_NONE 0 #define UCSI_CONSTAT_PWR_OPMODE_DEFAULT 1 #define UCSI_CONSTAT_PWR_OPMODE_BC 2 #define UCSI_CONSTAT_PWR_OPMODE_PD 3 #define UCSI_CONSTAT_PWR_OPMODE_TYPEC1_5 4 #define UCSI_CONSTAT_PWR_OPMODE_TYPEC3_0 5 -#define UCSI_CONSTAT_CONNECTED BIT(3) -#define UCSI_CONSTAT_PWR_DIR BIT(4) -#define UCSI_CONSTAT_PARTNER_FLAGS(_f_) (((_f_) & GENMASK(12, 5)) >> 5) -#define UCSI_CONSTAT_PARTNER_FLAG_USB 1 -#define UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE 2 -#define UCSI_CONSTAT_PARTNER_TYPE(_f_) (((_f_) & GENMASK(15, 13)) >> 13) +#define UCSI_CONSTAT_CONNECTED UCSI_DECLARE_BITFIELD(0, 19, 1) +#define UCSI_CONSTAT_PWR_DIR UCSI_DECLARE_BITFIELD(0, 20, 1) +#define UCSI_CONSTAT_PARTNER_FLAGS UCSI_DECLARE_BITFIELD(0, 21, 8) +#define UCSI_CONSTAT_PARTNER_FLAG_USB UCSI_DECLARE_BITFIELD(0, 21, 1) +#define UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE UCSI_DECLARE_BITFIELD(0, 22, 1) +#define UCSI_CONSTAT_PARTNER_FLAG_USB4_GEN3 UCSI_DECLARE_BITFIELD(0, 23, 1) +#define UCSI_CONSTAT_PARTNER_FLAG_USB4_GEN4 UCSI_DECLARE_BITFIELD(0, 24, 1) +#define UCSI_CONSTAT_PARTNER_TYPE UCSI_DECLARE_BITFIELD(0, 29, 3) #define UCSI_CONSTAT_PARTNER_TYPE_DFP 1 #define UCSI_CONSTAT_PARTNER_TYPE_UFP 2 -#define UCSI_CONSTAT_PARTNER_TYPE_CABLE 3 /* Powered Cable */ -#define UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP 4 /* Powered Cable */ +#define UCSI_CONSTAT_PARTNER_TYPE_CABLE 3 /* Powered Cable */ +#define UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP 4 /* Powered Cable */ #define UCSI_CONSTAT_PARTNER_TYPE_DEBUG 5 #define UCSI_CONSTAT_PARTNER_TYPE_AUDIO 6 - u32 request_data_obj; - - u8 pwr_status[3]; -#define UCSI_CONSTAT_BC_STATUS(_p_) ((_p_[0]) & GENMASK(1, 0)) +#define UCSI_CONSTAT_RDO UCSI_DECLARE_BITFIELD(0, 32, 32) +#define UCSI_CONSTAT_BC_STATUS UCSI_DECLARE_BITFIELD(0, 64, 2) #define UCSI_CONSTAT_BC_NOT_CHARGING 0 #define UCSI_CONSTAT_BC_NOMINAL_CHARGING 1 #define UCSI_CONSTAT_BC_SLOW_CHARGING 2 #define UCSI_CONSTAT_BC_TRICKLE_CHARGING 3 -#define UCSI_CONSTAT_PROVIDER_CAP_LIMIT(_p_) (((_p_[0]) & GENMASK(5, 2)) >> 2) -#define UCSI_CONSTAT_CAP_PWR_LOWERED 0 -#define UCSI_CONSTAT_CAP_PWR_BUDGET_LIMIT 1 -#define UCSI_CONSTAT_PROVIDER_PD_VERSION_OPER_MODE(_p_) \ - ((get_unaligned_le32(_p_) & GENMASK(21, 6)) >> 6) -#define UCSI_CONSTAT_ORIENTATION(_p_) (((_p_[2]) & GENMASK(6, 6)) >> 6) -#define UCSI_CONSTAT_ORIENTATION_DIRECT 0 -#define UCSI_CONSTAT_ORIENTATION_FLIPPED 1 -#define UCSI_CONSTAT_SINK_PATH_STATUS(_p_) (((_p_[2]) & GENMASK(7, 7)) >> 7) -#define UCSI_CONSTAT_SINK_PATH_DISABLED 0 -#define UCSI_CONSTAT_SINK_PATH_ENABLED 1 - u8 pwr_readings[9]; -#define UCSI_CONSTAT_REV_CURR_PROT_STATUS(_p_) ((_p_[0]) & 0x1) -#define UCSI_CONSTAT_PWR_READING_VALID(_p_) (((_p_[0]) & GENMASK(1, 1)) >> 1) -#define UCSI_CONSTAT_CURRENT_SCALE(_p_) (((_p_[0]) & GENMASK(4, 2)) >> 2) -#define UCSI_CONSTAT_PEAK_CURRENT(_p_) \ - ((get_unaligned_le32(_p_) & GENMASK(20, 5)) >> 5) -#define UCSI_CONSTAT_AVG_CURRENT(_p_) \ - ((get_unaligned_le32(&(_p_)[2]) & GENMASK(20, 5)) >> 5) -#define UCSI_CONSTAT_VOLTAGE_SCALE(_p_) \ - ((get_unaligned_le16(&(_p_)[4]) & GENMASK(8, 5)) >> 5) -#define UCSI_CONSTAT_VOLTAGE_READING(_p_) \ - ((get_unaligned_le32(&(_p_)[5]) & GENMASK(16, 1)) >> 1) -} __packed; +#define UCSI_CONSTAT_PD_VERSION_V1_2 UCSI_DECLARE_BITFIELD_V1_2(70, 16) -/* - * Data structure filled by PPM in response to GET_PD_MESSAGE command with the - * Response Message Type set to Discover Identity Response. +/* Connector Status Change Bits. */ +#define UCSI_CONSTAT_EXT_SUPPLY_CHANGE BIT(1) +#define UCSI_CONSTAT_POWER_OPMODE_CHANGE BIT(2) +#define UCSI_CONSTAT_PDOS_CHANGE BIT(5) +#define UCSI_CONSTAT_POWER_LEVEL_CHANGE BIT(6) +#define UCSI_CONSTAT_PD_RESET_COMPLETE BIT(7) +#define UCSI_CONSTAT_CAM_CHANGE BIT(8) +#define UCSI_CONSTAT_BC_CHANGE BIT(9) +#define UCSI_CONSTAT_PARTNER_CHANGE BIT(11) +#define UCSI_CONSTAT_POWER_DIR_CHANGE BIT(12) +#define UCSI_CONSTAT_CONNECT_CHANGE BIT(14) +#define UCSI_CONSTAT_ERROR BIT(15) + +#define UCSI_DECLARE_BITFIELD_V1_1(_offset_, _size_) \ + UCSI_DECLARE_BITFIELD(UCSI_VERSION_1_1, (_offset_), (_size_)) +#define UCSI_DECLARE_BITFIELD_V1_2(_offset_, _size_) \ + UCSI_DECLARE_BITFIELD(UCSI_VERSION_1_2, (_offset_), (_size_)) +#define UCSI_DECLARE_BITFIELD_V2_0(_offset_, _size_) \ + UCSI_DECLARE_BITFIELD(UCSI_VERSION_2_0, (_offset_), (_size_)) +#define UCSI_DECLARE_BITFIELD_V2_1(_offset_, _size_) \ + UCSI_DECLARE_BITFIELD(UCSI_VERSION_2_1, (_offset_), (_size_)) +#define UCSI_DECLARE_BITFIELD_V3_0(_offset_, _size_) \ + UCSI_DECLARE_BITFIELD(UCSI_VERSION_3_0, (_offset_), (_size_)) + +#define UCSI_DECLARE_BITFIELD(_ver_, _offset_, _size_) \ +(struct ucsi_bitfield) { \ + .version = _ver_, \ + .offset = _offset_, \ + .size = _size_, \ +} + +struct ucsi_bitfield { + const u16 version; + const u8 offset; + const u8 size; +}; + +/** + * ucsi_bitfield_read - Read a field from UCSI command response + * @_map_: UCSI command response + * @_field_: The field offset in the response data structure + * @_ver_: UCSI version where the field was introduced + * + * Reads the fields in the command responses by first checking that the field is + * valid with the UCSI interface version that is used in the system. + * @_ver_ is the minimum UCSI version for the @_field_. If the UCSI interface is + * older than @_ver_, a warning is generated. + * + * Caveats: + * - Removed fields are not checked - @_ver_ is just the minimum UCSI version. + * + * Returns the value of @_field_, or 0 when the UCSI interface is older than + * @_ver_. */ -struct ucsi_pd_message_disc_id { - u32 vdm_header; - u32 id_header; - u32 cert_stat; - u32 product; - u32 vdo[3]; -} __packed; +#define ucsi_bitfield_read(_map_, _field_, _ver_) \ +({ \ + struct ucsi_bitfield f = (_field_); \ + WARN((_ver_) < f.version, \ + "Access to unsupported field at offset 0x%x (need version %04x)", \ + f.offset, f.version) ? 0 : \ + bitmap_read((_map_), f.offset, f.size); \ +}) + +/* Helpers to access cached command responses. */ +#define UCSI_CONCAP(_con_, _field_) \ + ucsi_bitfield_read((_con_)->cap, UCSI_CONCAP_##_field_, (_con_)->ucsi->version) + +#define UCSI_CONSTAT(_con_, _field_) \ + ucsi_bitfield_read((_con_)->status, UCSI_CONSTAT_##_field_, (_con_)->ucsi->version) /* -------------------------------------------------------------------------- */ @@ -379,7 +441,7 @@ struct ucsi_debugfs_entry { struct ucsi { u16 version; struct device *dev; - struct driver_data *driver_data; + void *driver_data; const struct ucsi_operations *ops; @@ -405,11 +467,15 @@ struct ucsi { #define EVENT_PENDING 0 #define COMMAND_PENDING 1 #define ACK_PENDING 2 + struct completion complete; unsigned long quirks; #define UCSI_NO_PARTNER_PDOS BIT(0) /* Don't read partner's PDOs */ +#define UCSI_DELAY_DEVICE_PDOS BIT(1) /* Reading PDOs fails until the parter is in PD mode */ }; +#define UCSI_MAX_DATA_LENGTH(u) (((u)->version < UCSI_VERSION_2_0) ? 0x10 : 0xff) + #define UCSI_MAX_SVID 5 #define UCSI_MAX_ALTMODES (UCSI_MAX_SVID * 6) @@ -438,9 +504,10 @@ struct ucsi_connector { struct typec_capability typec_cap; - struct ucsi_connector_status status; - struct ucsi_connector_capability cap; - struct ucsi_cable_property cable_prop; + /* Cached command responses. */ + DECLARE_BITMAP(cap, UCSI_GET_CONNECTOR_CAPABILITY_SIZE); + DECLARE_BITMAP(status, UCSI_GET_CONNECTOR_STATUS_SIZE); + struct power_supply *psy; struct power_supply_desc psy_desc; u32 rdo; @@ -468,6 +535,10 @@ int ucsi_send_command(struct ucsi *ucsi, u64 command, void ucsi_altmode_update_active(struct ucsi_connector *con); int ucsi_resume(struct ucsi *ucsi); +void ucsi_notify_common(struct ucsi *ucsi, u32 cci); +int ucsi_sync_control_common(struct ucsi *ucsi, u64 command, u32 *cci, + void *data, size_t size); + #if IS_ENABLED(CONFIG_POWER_SUPPLY) int ucsi_register_port_psy(struct ucsi_connector *con); void ucsi_unregister_port_psy(struct ucsi_connector *con); @@ -492,7 +563,7 @@ ucsi_register_displayport(struct ucsi_connector *con, bool override, int offset, struct typec_altmode_desc *desc) { - return NULL; + return typec_port_register_altmode(con->port, desc); } static inline void diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index 7b3ac133ef86..6b92f296e985 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -21,11 +21,7 @@ struct ucsi_acpi { struct device *dev; struct ucsi *ucsi; void *base; - struct completion complete; - unsigned long flags; -#define UCSI_ACPI_SUPPRESS_EVENT 0 -#define UCSI_ACPI_COMMAND_PENDING 1 -#define UCSI_ACPI_ACK_PENDING 2 + bool check_bogus_event; guid_t guid; u64 cmd; }; @@ -46,8 +42,7 @@ static int ucsi_acpi_dsm(struct ucsi_acpi *ua, int func) return 0; } -static int ucsi_acpi_read(struct ucsi *ucsi, unsigned int offset, - void *val, size_t val_len) +static int ucsi_acpi_read_version(struct ucsi *ucsi, u16 *version) { struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); int ret; @@ -56,135 +51,106 @@ static int ucsi_acpi_read(struct ucsi *ucsi, unsigned int offset, if (ret) return ret; - memcpy(val, ua->base + offset, val_len); + memcpy(version, ua->base + UCSI_VERSION, sizeof(*version)); return 0; } -static int ucsi_acpi_async_write(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len) +static int ucsi_acpi_read_cci(struct ucsi *ucsi, u32 *cci) { struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); - memcpy(ua->base + offset, val, val_len); - ua->cmd = *(u64 *)val; + memcpy(cci, ua->base + UCSI_CCI, sizeof(*cci)); - return ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_WRITE); + return 0; } -static int ucsi_acpi_sync_write(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len) +static int ucsi_acpi_poll_cci(struct ucsi *ucsi, u32 *cci) { struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); - bool ack = UCSI_COMMAND(*(u64 *)val) == UCSI_ACK_CC_CI; int ret; - if (ack) - set_bit(UCSI_ACPI_ACK_PENDING, &ua->flags); - else - set_bit(UCSI_ACPI_COMMAND_PENDING, &ua->flags); - - ret = ucsi_acpi_async_write(ucsi, offset, val, val_len); + ret = ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ); if (ret) - goto out_clear_bit; + return ret; + + return ucsi_acpi_read_cci(ucsi, cci); +} - if (!wait_for_completion_timeout(&ua->complete, 5 * HZ)) - ret = -ETIMEDOUT; +static int ucsi_acpi_read_message_in(struct ucsi *ucsi, void *val, size_t val_len) +{ + struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); -out_clear_bit: - if (ack) - clear_bit(UCSI_ACPI_ACK_PENDING, &ua->flags); - else - clear_bit(UCSI_ACPI_COMMAND_PENDING, &ua->flags); + memcpy(val, ua->base + UCSI_MESSAGE_IN, val_len); - return ret; + return 0; } -static const struct ucsi_operations ucsi_acpi_ops = { - .read = ucsi_acpi_read, - .sync_write = ucsi_acpi_sync_write, - .async_write = ucsi_acpi_async_write -}; - -static int -ucsi_zenbook_read(struct ucsi *ucsi, unsigned int offset, void *val, size_t val_len) +static int ucsi_acpi_async_control(struct ucsi *ucsi, u64 command) { struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); - int ret; - - if (offset == UCSI_VERSION || UCSI_COMMAND(ua->cmd) == UCSI_PPM_RESET) { - ret = ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ); - if (ret) - return ret; - } - memcpy(val, ua->base + offset, val_len); + memcpy(ua->base + UCSI_CONTROL, &command, sizeof(command)); + ua->cmd = command; - return 0; + return ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_WRITE); } -static const struct ucsi_operations ucsi_zenbook_ops = { - .read = ucsi_zenbook_read, - .sync_write = ucsi_acpi_sync_write, - .async_write = ucsi_acpi_async_write +static const struct ucsi_operations ucsi_acpi_ops = { + .read_version = ucsi_acpi_read_version, + .read_cci = ucsi_acpi_read_cci, + .poll_cci = ucsi_acpi_poll_cci, + .read_message_in = ucsi_acpi_read_message_in, + .sync_control = ucsi_sync_control_common, + .async_control = ucsi_acpi_async_control }; -/* - * Some Dell laptops don't like ACK commands with the - * UCSI_ACK_CONNECTOR_CHANGE but not the UCSI_ACK_COMMAND_COMPLETE - * bit set. To work around this send a dummy command and bundle the - * UCSI_ACK_CONNECTOR_CHANGE with the UCSI_ACK_COMMAND_COMPLETE - * for the dummy command. - */ -static int -ucsi_dell_sync_write(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len) +static int ucsi_gram_sync_control(struct ucsi *ucsi, u64 command, u32 *cci, + void *val, size_t len) { + u16 bogus_change = UCSI_CONSTAT_POWER_LEVEL_CHANGE | + UCSI_CONSTAT_PDOS_CHANGE; struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); - u64 cmd = *(u64 *)val; - u64 dummycmd = UCSI_GET_CAPABILITY; int ret; - if (cmd == (UCSI_ACK_CC_CI | UCSI_ACK_CONNECTOR_CHANGE)) { - cmd |= UCSI_ACK_COMMAND_COMPLETE; - - /* - * The UCSI core thinks it is sending a connector change ack - * and will accept new connector change events. We don't want - * this to happen for the dummy command as its response will - * still report the very event that the core is trying to clear. - */ - set_bit(UCSI_ACPI_SUPPRESS_EVENT, &ua->flags); - ret = ucsi_acpi_sync_write(ucsi, UCSI_CONTROL, &dummycmd, - sizeof(dummycmd)); - clear_bit(UCSI_ACPI_SUPPRESS_EVENT, &ua->flags); - - if (ret < 0) - return ret; + ret = ucsi_sync_control_common(ucsi, command, cci, val, len); + if (ret < 0) + return ret; + + if (UCSI_COMMAND(ua->cmd) == UCSI_GET_PDOS && + ua->cmd & UCSI_GET_PDOS_PARTNER_PDO(1) && + ua->cmd & UCSI_GET_PDOS_SRC_PDOS) + ua->check_bogus_event = true; + + if (UCSI_COMMAND(ua->cmd) == UCSI_GET_CONNECTOR_STATUS && + ua->check_bogus_event) { + /* Clear the bogus change */ + if (*(u16 *)val == bogus_change) + *(u16 *)val = 0; + + ua->check_bogus_event = false; } - return ucsi_acpi_sync_write(ucsi, UCSI_CONTROL, &cmd, sizeof(cmd)); + return ret; } -static const struct ucsi_operations ucsi_dell_ops = { - .read = ucsi_acpi_read, - .sync_write = ucsi_dell_sync_write, - .async_write = ucsi_acpi_async_write +static const struct ucsi_operations ucsi_gram_ops = { + .read_version = ucsi_acpi_read_version, + .read_cci = ucsi_acpi_read_cci, + .poll_cci = ucsi_acpi_poll_cci, + .read_message_in = ucsi_acpi_read_message_in, + .sync_control = ucsi_gram_sync_control, + .async_control = ucsi_acpi_async_control }; static const struct dmi_system_id ucsi_acpi_quirks[] = { { .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UA_UM325UA"), - }, - .driver_data = (void *)&ucsi_zenbook_ops, - }, - { - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"), + DMI_MATCH(DMI_PRODUCT_FAMILY, "LG gram PC"), + DMI_MATCH(DMI_PRODUCT_NAME, "90Q"), }, - .driver_data = (void *)&ucsi_dell_ops, + .driver_data = (void *)&ucsi_gram_ops, }, { } }; @@ -195,19 +161,11 @@ static void ucsi_acpi_notify(acpi_handle handle, u32 event, void *data) u32 cci; int ret; - ret = ua->ucsi->ops->read(ua->ucsi, UCSI_CCI, &cci, sizeof(cci)); + ret = ua->ucsi->ops->read_cci(ua->ucsi, &cci); if (ret) return; - if (UCSI_CCI_CONNECTOR(cci) && - !test_bit(UCSI_ACPI_SUPPRESS_EVENT, &ua->flags)) - ucsi_connector_change(ua->ucsi, UCSI_CCI_CONNECTOR(cci)); - - if (cci & UCSI_CCI_ACK_COMPLETE && test_bit(ACK_PENDING, &ua->flags)) - complete(&ua->complete); - if (cci & UCSI_CCI_COMMAND_COMPLETE && - test_bit(UCSI_ACPI_COMMAND_PENDING, &ua->flags)) - complete(&ua->complete); + ucsi_notify_common(ua->ucsi, cci); } static int ucsi_acpi_probe(struct platform_device *pdev) @@ -241,7 +199,6 @@ static int ucsi_acpi_probe(struct platform_device *pdev) if (ret) return ret; - init_completion(&ua->complete); ua->dev = &pdev->dev; id = dmi_first_match(ucsi_acpi_quirks); @@ -310,7 +267,7 @@ static struct platform_driver ucsi_acpi_platform_driver = { .acpi_match_table = ACPI_PTR(ucsi_acpi_match), }, .probe = ucsi_acpi_probe, - .remove_new = ucsi_acpi_remove, + .remove = ucsi_acpi_remove, }; module_platform_driver(ucsi_acpi_platform_driver); diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index dda7c7c94e08..e9a9df1431af 100644 --- a/drivers/usb/typec/ucsi/ucsi_ccg.c +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c @@ -18,7 +18,7 @@ #include <linux/pm_runtime.h> #include <linux/usb/typec_dp.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "ucsi.h" enum enum_fw_mode { @@ -222,9 +222,6 @@ struct ucsi_ccg { u16 fw_build; struct work_struct pm_work; - struct completion complete; - - u64 last_cmd_sent; bool has_multiple_dp; struct ucsi_ccg_altmode orig[UCSI_MAX_ALTMODES]; struct ucsi_ccg_altmode updated[UCSI_MAX_ALTMODES]; @@ -484,6 +481,8 @@ static void ucsi_ccg_update_set_new_cam_cmd(struct ucsi_ccg *uc, port = uc->orig; new_cam = UCSI_SET_NEW_CAM_GET_AM(*cmd); + if (new_cam >= ARRAY_SIZE(uc->updated)) + return; new_port = &uc->updated[new_cam]; cam = new_port->linked_idx; enter_new_mode = UCSI_SET_NEW_CAM_ENTER(*cmd); @@ -538,9 +537,10 @@ static void ucsi_ccg_update_set_new_cam_cmd(struct ucsi_ccg *uc, * first and then vdo=0x3 */ static void ucsi_ccg_nvidia_altmode(struct ucsi_ccg *uc, - struct ucsi_altmode *alt) + struct ucsi_altmode *alt, + u64 command) { - switch (UCSI_ALTMODE_OFFSET(uc->last_cmd_sent)) { + switch (UCSI_ALTMODE_OFFSET(command)) { case NVIDIA_FTB_DP_OFFSET: if (alt[0].mid == USB_TYPEC_NVIDIA_VLINK_DBG_VDO) alt[0].mid = USB_TYPEC_NVIDIA_VLINK_DP_VDO | @@ -556,79 +556,54 @@ static void ucsi_ccg_nvidia_altmode(struct ucsi_ccg *uc, } } -static int ucsi_ccg_read(struct ucsi *ucsi, unsigned int offset, - void *val, size_t val_len) +static int ucsi_ccg_read_version(struct ucsi *ucsi, u16 *version) { struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi); - u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(offset); - struct ucsi_capability *cap; - struct ucsi_altmode *alt; - int ret = 0; + u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(UCSI_VERSION); - if (offset == UCSI_CCI) { - spin_lock(&uc->op_lock); - memcpy(val, &(uc->op_data).cci, val_len); - spin_unlock(&uc->op_lock); - } else if (offset == UCSI_MESSAGE_IN) { - spin_lock(&uc->op_lock); - memcpy(val, &(uc->op_data).message_in, val_len); - spin_unlock(&uc->op_lock); - } else { - ret = ccg_read(uc, reg, val, val_len); - } + return ccg_read(uc, reg, (u8 *)version, sizeof(*version)); +} - if (ret) - return ret; +static int ucsi_ccg_read_cci(struct ucsi *ucsi, u32 *cci) +{ + struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi); - if (offset != UCSI_MESSAGE_IN) - return ret; + spin_lock(&uc->op_lock); + *cci = uc->op_data.cci; + spin_unlock(&uc->op_lock); - switch (UCSI_COMMAND(uc->last_cmd_sent)) { - case UCSI_GET_CURRENT_CAM: - if (uc->has_multiple_dp) - ucsi_ccg_update_get_current_cam_cmd(uc, (u8 *)val); - break; - case UCSI_GET_ALTERNATE_MODES: - if (UCSI_ALTMODE_RECIPIENT(uc->last_cmd_sent) == - UCSI_RECIPIENT_SOP) { - alt = val; - if (alt[0].svid == USB_TYPEC_NVIDIA_VLINK_SID) - ucsi_ccg_nvidia_altmode(uc, alt); - } - break; - case UCSI_GET_CAPABILITY: - if (uc->fw_build == CCG_FW_BUILD_NVIDIA_TEGRA) { - cap = val; - cap->features &= ~UCSI_CAP_ALT_MODE_DETAILS; - } - break; - default: - break; - } - uc->last_cmd_sent = 0; + return 0; +} - return ret; +static int ucsi_ccg_read_message_in(struct ucsi *ucsi, void *val, size_t val_len) +{ + struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi); + + spin_lock(&uc->op_lock); + memcpy(val, uc->op_data.message_in, val_len); + spin_unlock(&uc->op_lock); + + return 0; } -static int ucsi_ccg_async_write(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len) +static int ucsi_ccg_async_control(struct ucsi *ucsi, u64 command) { struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi); - u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(offset); + u16 reg = CCGX_RAB_UCSI_DATA_BLOCK(UCSI_CONTROL); /* - * UCSI may read CCI instantly after async_write, + * UCSI may read CCI instantly after async_control, * clear CCI to avoid caller getting wrong data before we get CCI from ISR */ spin_lock(&uc->op_lock); uc->op_data.cci = 0; spin_unlock(&uc->op_lock); - return ccg_write(uc, reg, val, val_len); + return ccg_write(uc, reg, (u8 *)&command, sizeof(command)); } -static int ucsi_ccg_sync_write(struct ucsi *ucsi, unsigned int offset, - const void *val, size_t val_len) +static int ucsi_ccg_sync_control(struct ucsi *ucsi, u64 command, u32 *cci, + void *data, size_t size) { struct ucsi_ccg *uc = ucsi_get_drvdata(ucsi); struct ucsi_connector *con; @@ -637,29 +612,46 @@ static int ucsi_ccg_sync_write(struct ucsi *ucsi, unsigned int offset, mutex_lock(&uc->lock); pm_runtime_get_sync(uc->dev); - set_bit(DEV_CMD_PENDING, &uc->flags); - - if (offset == UCSI_CONTROL && val_len == sizeof(uc->last_cmd_sent)) { - uc->last_cmd_sent = *(u64 *)val; - if (UCSI_COMMAND(uc->last_cmd_sent) == UCSI_SET_NEW_CAM && - uc->has_multiple_dp) { - con_index = (uc->last_cmd_sent >> 16) & - UCSI_CMD_CONNECTOR_MASK; - con = &uc->ucsi->connector[con_index - 1]; - ucsi_ccg_update_set_new_cam_cmd(uc, con, (u64 *)val); + if (UCSI_COMMAND(command) == UCSI_SET_NEW_CAM && + uc->has_multiple_dp) { + con_index = (command >> 16) & + UCSI_CMD_CONNECTOR_MASK; + if (con_index == 0) { + ret = -EINVAL; + goto err_put; } + con = &uc->ucsi->connector[con_index - 1]; + ucsi_ccg_update_set_new_cam_cmd(uc, con, &command); } - ret = ucsi_ccg_async_write(ucsi, offset, val, val_len); - if (ret) - goto err_clear_bit; + ret = ucsi_sync_control_common(ucsi, command, cci, data, size); - if (!wait_for_completion_timeout(&uc->complete, msecs_to_jiffies(5000))) - ret = -ETIMEDOUT; + switch (UCSI_COMMAND(command)) { + case UCSI_GET_CURRENT_CAM: + if (uc->has_multiple_dp) + ucsi_ccg_update_get_current_cam_cmd(uc, (u8 *)data); + break; + case UCSI_GET_ALTERNATE_MODES: + if (UCSI_ALTMODE_RECIPIENT(command) == UCSI_RECIPIENT_SOP) { + struct ucsi_altmode *alt = data; -err_clear_bit: - clear_bit(DEV_CMD_PENDING, &uc->flags); + if (alt[0].svid == USB_TYPEC_NVIDIA_VLINK_SID) + ucsi_ccg_nvidia_altmode(uc, alt, command); + } + break; + case UCSI_GET_CAPABILITY: + if (uc->fw_build == CCG_FW_BUILD_NVIDIA_TEGRA) { + struct ucsi_capability *cap = data; + + cap->features &= ~UCSI_CAP_ALT_MODE_DETAILS; + } + break; + default: + break; + } + +err_put: pm_runtime_put_sync(uc->dev); mutex_unlock(&uc->lock); @@ -667,9 +659,12 @@ err_clear_bit: } static const struct ucsi_operations ucsi_ccg_ops = { - .read = ucsi_ccg_read, - .sync_write = ucsi_ccg_sync_write, - .async_write = ucsi_ccg_async_write, + .read_version = ucsi_ccg_read_version, + .read_cci = ucsi_ccg_read_cci, + .poll_cci = ucsi_ccg_read_cci, + .read_message_in = ucsi_ccg_read_message_in, + .sync_control = ucsi_ccg_sync_control, + .async_control = ucsi_ccg_async_control, .update_altmodes = ucsi_ccg_update_altmodes }; @@ -694,9 +689,6 @@ static irqreturn_t ccg_irq_handler(int irq, void *data) if (ret) goto err_clear_irq; - if (UCSI_CCI_CONNECTOR(cci)) - ucsi_connector_change(uc->ucsi, UCSI_CCI_CONNECTOR(cci)); - /* * As per CCGx UCSI interface guide, copy CCI and MESSAGE_IN * to the OpRegion before clear the UCSI interrupt @@ -708,9 +700,8 @@ static irqreturn_t ccg_irq_handler(int irq, void *data) err_clear_irq: ccg_write(uc, CCGX_RAB_INTR_REG, &intr_reg, sizeof(intr_reg)); - if (!ret && test_bit(DEV_CMD_PENDING, &uc->flags) && - cci & (UCSI_CCI_ACK_COMPLETE | UCSI_CCI_COMMAND_COMPLETE)) - complete(&uc->complete); + if (!ret) + ucsi_notify_common(uc->ucsi, cci); return IRQ_HANDLED; } @@ -1397,22 +1388,35 @@ static ssize_t do_flash_store(struct device *dev, if (!flash) return n; - if (uc->fw_build == 0x0) { - dev_err(dev, "fail to flash FW due to missing FW build info\n"); - return -EINVAL; - } - schedule_work(&uc->work); return n; } +static umode_t ucsi_ccg_attrs_is_visible(struct kobject *kobj, struct attribute *attr, int idx) +{ + struct device *dev = kobj_to_dev(kobj); + struct ucsi_ccg *uc = i2c_get_clientdata(to_i2c_client(dev)); + + if (!uc->fw_build) + return 0; + + return attr->mode; +} + static DEVICE_ATTR_WO(do_flash); static struct attribute *ucsi_ccg_attrs[] = { &dev_attr_do_flash.attr, NULL, }; -ATTRIBUTE_GROUPS(ucsi_ccg); +static struct attribute_group ucsi_ccg_attr_group = { + .attrs = ucsi_ccg_attrs, + .is_visible = ucsi_ccg_attrs_is_visible, +}; +static const struct attribute_group *ucsi_ccg_groups[] = { + &ucsi_ccg_attr_group, + NULL, +}; static int ucsi_ccg_probe(struct i2c_client *client) { @@ -1429,7 +1433,6 @@ static int ucsi_ccg_probe(struct i2c_client *client) uc->client = client; uc->irq = client->irq; mutex_init(&uc->lock); - init_completion(&uc->complete); INIT_WORK(&uc->work, ccg_update_firmware); INIT_WORK(&uc->pm_work, ccg_pm_workaround_work); @@ -1440,11 +1443,10 @@ static int ucsi_ccg_probe(struct i2c_client *client) uc->fw_build = CCG_FW_BUILD_NVIDIA_TEGRA; else if (!strcmp(fw_name, "nvidia,gpu")) uc->fw_build = CCG_FW_BUILD_NVIDIA; + if (!uc->fw_build) + dev_err(uc->dev, "failed to get FW build information\n"); } - if (!uc->fw_build) - dev_err(uc->dev, "failed to get FW build information\n"); - /* reset ccg device and initialize ucsi */ status = ucsi_ccg_init(uc); if (status < 0) { @@ -1481,6 +1483,8 @@ static int ucsi_ccg_probe(struct i2c_client *client) i2c_set_clientdata(client, uc); + device_disable_async_suspend(uc->dev); + pm_runtime_set_active(uc->dev); pm_runtime_enable(uc->dev); pm_runtime_use_autosuspend(uc->dev); @@ -1516,7 +1520,7 @@ static const struct of_device_id ucsi_ccg_of_match_table[] = { MODULE_DEVICE_TABLE(of, ucsi_ccg_of_match_table); static const struct i2c_device_id ucsi_ccg_device_id[] = { - {"ccgx-ucsi", 0}, + { "ccgx-ucsi" }, {} }; MODULE_DEVICE_TABLE(i2c, ucsi_ccg_device_id); diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c index ce08eb33e5be..8af79101a2fc 100644 --- a/drivers/usb/typec/ucsi/ucsi_glink.c +++ b/drivers/usb/typec/ucsi/ucsi_glink.c @@ -14,7 +14,7 @@ #include <linux/soc/qcom/pmic_glink.h> #include "ucsi.h" -#define PMIC_GLINK_MAX_PORTS 2 +#define PMIC_GLINK_MAX_PORTS 3 #define UCSI_BUF_SIZE 48 @@ -58,21 +58,19 @@ struct pmic_glink_ucsi { struct device *dev; struct gpio_desc *port_orientation[PMIC_GLINK_MAX_PORTS]; - struct typec_switch *port_switch[PMIC_GLINK_MAX_PORTS]; struct pmic_glink_client *client; struct ucsi *ucsi; struct completion read_ack; struct completion write_ack; - struct completion sync_ack; - bool sync_pending; struct mutex lock; /* protects concurrent access to PMIC Glink interface */ - int sync_val; - struct work_struct notify_work; struct work_struct register_work; + spinlock_t state_lock; + bool ucsi_registered; + bool pd_running; u8 read_buf[UCSI_BUF_SIZE]; }; @@ -115,6 +113,21 @@ out_unlock: return ret; } +static int pmic_glink_ucsi_read_version(struct ucsi *ucsi, u16 *version) +{ + return pmic_glink_ucsi_read(ucsi, UCSI_VERSION, version, sizeof(*version)); +} + +static int pmic_glink_ucsi_read_cci(struct ucsi *ucsi, u32 *cci) +{ + return pmic_glink_ucsi_read(ucsi, UCSI_CCI, cci, sizeof(*cci)); +} + +static int pmic_glink_ucsi_read_message_in(struct ucsi *ucsi, void *val, size_t val_len) +{ + return pmic_glink_ucsi_read(ucsi, UCSI_MESSAGE_IN, val, val_len); +} + static int pmic_glink_ucsi_locked_write(struct pmic_glink_ucsi *ucsi, unsigned int offset, const void *val, size_t val_len) { @@ -144,52 +157,61 @@ static int pmic_glink_ucsi_locked_write(struct pmic_glink_ucsi *ucsi, unsigned i return 0; } -static int pmic_glink_ucsi_async_write(struct ucsi *__ucsi, unsigned int offset, - const void *val, size_t val_len) +static int pmic_glink_ucsi_async_control(struct ucsi *__ucsi, u64 command) { struct pmic_glink_ucsi *ucsi = ucsi_get_drvdata(__ucsi); int ret; mutex_lock(&ucsi->lock); - ret = pmic_glink_ucsi_locked_write(ucsi, offset, val, val_len); + ret = pmic_glink_ucsi_locked_write(ucsi, UCSI_CONTROL, &command, sizeof(command)); mutex_unlock(&ucsi->lock); return ret; } -static int pmic_glink_ucsi_sync_write(struct ucsi *__ucsi, unsigned int offset, - const void *val, size_t val_len) +static void pmic_glink_ucsi_update_connector(struct ucsi_connector *con) { - struct pmic_glink_ucsi *ucsi = ucsi_get_drvdata(__ucsi); - unsigned long left; - int ret; + struct pmic_glink_ucsi *ucsi = ucsi_get_drvdata(con->ucsi); - /* TOFIX: Downstream forces recipient to CON when UCSI_GET_ALTERNATE_MODES command */ + if (con->num > PMIC_GLINK_MAX_PORTS || + !ucsi->port_orientation[con->num - 1]) + return; - mutex_lock(&ucsi->lock); - ucsi->sync_val = 0; - reinit_completion(&ucsi->sync_ack); - ucsi->sync_pending = true; - ret = pmic_glink_ucsi_locked_write(ucsi, offset, val, val_len); - mutex_unlock(&ucsi->lock); + con->typec_cap.orientation_aware = true; +} - left = wait_for_completion_timeout(&ucsi->sync_ack, 5 * HZ); - if (!left) { - dev_err(ucsi->dev, "timeout waiting for UCSI sync write response\n"); - ret = -ETIMEDOUT; - } else if (ucsi->sync_val) { - dev_err(ucsi->dev, "sync write returned: %d\n", ucsi->sync_val); +static void pmic_glink_ucsi_connector_status(struct ucsi_connector *con) +{ + struct pmic_glink_ucsi *ucsi = ucsi_get_drvdata(con->ucsi); + int orientation; + + if (!UCSI_CONSTAT(con, CONNECTED)) { + typec_set_orientation(con->port, TYPEC_ORIENTATION_NONE); + return; } - ucsi->sync_pending = false; + if (con->num > PMIC_GLINK_MAX_PORTS || + !ucsi->port_orientation[con->num - 1]) + return; - return ret; + orientation = gpiod_get_value(ucsi->port_orientation[con->num - 1]); + if (orientation >= 0) { + typec_set_orientation(con->port, + orientation ? + TYPEC_ORIENTATION_REVERSE : + TYPEC_ORIENTATION_NORMAL); + } } static const struct ucsi_operations pmic_glink_ucsi_ops = { - .read = pmic_glink_ucsi_read, - .sync_write = pmic_glink_ucsi_sync_write, - .async_write = pmic_glink_ucsi_async_write + .read_version = pmic_glink_ucsi_read_version, + .read_cci = pmic_glink_ucsi_read_cci, + .poll_cci = pmic_glink_ucsi_read_cci, + .read_message_in = pmic_glink_ucsi_read_message_in, + .sync_control = ucsi_sync_control_common, + .async_control = pmic_glink_ucsi_async_control, + .update_connector = pmic_glink_ucsi_update_connector, + .connector_status = pmic_glink_ucsi_connector_status, }; static void pmic_glink_ucsi_read_ack(struct pmic_glink_ucsi *ucsi, const void *data, int len) @@ -210,14 +232,12 @@ static void pmic_glink_ucsi_write_ack(struct pmic_glink_ucsi *ucsi, const void * if (resp->ret_code) return; - ucsi->sync_val = resp->ret_code; complete(&ucsi->write_ack); } static void pmic_glink_ucsi_notify(struct work_struct *work) { struct pmic_glink_ucsi *ucsi = container_of(work, struct pmic_glink_ucsi, notify_work); - unsigned int con_num; u32 cci; int ret; @@ -227,50 +247,26 @@ static void pmic_glink_ucsi_notify(struct work_struct *work) return; } - con_num = UCSI_CCI_CONNECTOR(cci); - if (con_num) { - if (con_num <= PMIC_GLINK_MAX_PORTS && - ucsi->port_orientation[con_num - 1]) { - int orientation = gpiod_get_value(ucsi->port_orientation[con_num - 1]); - - if (orientation >= 0) { - typec_switch_set(ucsi->port_switch[con_num - 1], - orientation ? TYPEC_ORIENTATION_REVERSE - : TYPEC_ORIENTATION_NORMAL); - } - } - - ucsi_connector_change(ucsi->ucsi, con_num); - } - - if (ucsi->sync_pending && cci & UCSI_CCI_BUSY) { - ucsi->sync_val = -EBUSY; - complete(&ucsi->sync_ack); - } else if (ucsi->sync_pending && - (cci & (UCSI_CCI_ACK_COMPLETE | UCSI_CCI_COMMAND_COMPLETE))) { - complete(&ucsi->sync_ack); - } + ucsi_notify_common(ucsi->ucsi, cci); } static void pmic_glink_ucsi_register(struct work_struct *work) { struct pmic_glink_ucsi *ucsi = container_of(work, struct pmic_glink_ucsi, register_work); - int orientation; - int i; + unsigned long flags; + bool pd_running; - for (i = 0; i < PMIC_GLINK_MAX_PORTS; i++) { - if (!ucsi->port_orientation[i]) - continue; - orientation = gpiod_get_value(ucsi->port_orientation[i]); + spin_lock_irqsave(&ucsi->state_lock, flags); + pd_running = ucsi->pd_running; + spin_unlock_irqrestore(&ucsi->state_lock, flags); - if (orientation >= 0) { - typec_switch_set(ucsi->port_switch[i], - orientation ? TYPEC_ORIENTATION_REVERSE - : TYPEC_ORIENTATION_NORMAL); - } + if (!ucsi->ucsi_registered && pd_running) { + ucsi_register(ucsi->ucsi); + ucsi->ucsi_registered = true; + } else if (ucsi->ucsi_registered && !pd_running) { + ucsi_unregister(ucsi->ucsi); + ucsi->ucsi_registered = false; } - - ucsi_register(ucsi->ucsi); } static void pmic_glink_ucsi_callback(const void *data, size_t len, void *priv) @@ -288,17 +284,18 @@ static void pmic_glink_ucsi_callback(const void *data, size_t len, void *priv) case UC_UCSI_USBC_NOTIFY_IND: schedule_work(&ucsi->notify_work); break; - }; + } } static void pmic_glink_ucsi_pdr_notify(void *priv, int state) { struct pmic_glink_ucsi *ucsi = priv; + unsigned long flags; - if (state == SERVREG_SERVICE_STATE_UP) - schedule_work(&ucsi->register_work); - else if (state == SERVREG_SERVICE_STATE_DOWN) - ucsi_unregister(ucsi->ucsi); + spin_lock_irqsave(&ucsi->state_lock, flags); + ucsi->pd_running = (state == SERVREG_SERVICE_STATE_UP); + spin_unlock_irqrestore(&ucsi->state_lock, flags); + schedule_work(&ucsi->register_work); } static void pmic_glink_ucsi_destroy(void *data) @@ -311,12 +308,17 @@ static void pmic_glink_ucsi_destroy(void *data) mutex_unlock(&ucsi->lock); } +static unsigned long quirk_sc8180x = UCSI_NO_PARTNER_PDOS; +static unsigned long quirk_sc8280xp = UCSI_NO_PARTNER_PDOS | UCSI_DELAY_DEVICE_PDOS; +static unsigned long quirk_sm8450 = UCSI_DELAY_DEVICE_PDOS; + static const struct of_device_id pmic_glink_ucsi_of_quirks[] = { - { .compatible = "qcom,qcm6490-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, }, - { .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, }, - { .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, }, - { .compatible = "qcom,sm8350-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, }, - { .compatible = "qcom,sm8550-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, }, + { .compatible = "qcom,qcm6490-pmic-glink", .data = &quirk_sc8280xp, }, + { .compatible = "qcom,sc8180x-pmic-glink", .data = &quirk_sc8180x, }, + { .compatible = "qcom,sc8280xp-pmic-glink", .data = &quirk_sc8280xp, }, + { .compatible = "qcom,sm8350-pmic-glink", .data = &quirk_sc8180x, }, + { .compatible = "qcom,sm8450-pmic-glink", .data = &quirk_sm8450, }, + { .compatible = "qcom,sm8550-pmic-glink", .data = &quirk_sm8450, }, {} }; @@ -326,7 +328,6 @@ static int pmic_glink_ucsi_probe(struct auxiliary_device *adev, struct pmic_glink_ucsi *ucsi; struct device *dev = &adev->dev; const struct of_device_id *match; - struct fwnode_handle *fwnode; int ret; ucsi = devm_kzalloc(dev, sizeof(*ucsi), GFP_KERNEL); @@ -340,7 +341,7 @@ static int pmic_glink_ucsi_probe(struct auxiliary_device *adev, INIT_WORK(&ucsi->register_work, pmic_glink_ucsi_register); init_completion(&ucsi->read_ack); init_completion(&ucsi->write_ack); - init_completion(&ucsi->sync_ack); + spin_lock_init(&ucsi->state_lock); mutex_init(&ucsi->lock); ucsi->ucsi = ucsi_create(dev, &pmic_glink_ucsi_ops); @@ -354,11 +355,11 @@ static int pmic_glink_ucsi_probe(struct auxiliary_device *adev, match = of_match_device(pmic_glink_ucsi_of_quirks, dev->parent); if (match) - ucsi->ucsi->quirks = (unsigned long)match->data; + ucsi->ucsi->quirks = *(unsigned long *)match->data; ucsi_set_drvdata(ucsi->ucsi, ucsi); - device_for_each_child_node(dev, fwnode) { + device_for_each_child_node_scoped(dev, fwnode) { struct gpio_desc *desc; u32 port; @@ -382,20 +383,20 @@ static int pmic_glink_ucsi_probe(struct auxiliary_device *adev, if (IS_ERR(desc)) return dev_err_probe(dev, PTR_ERR(desc), "unable to acquire orientation gpio\n"); - ucsi->port_orientation[port] = desc; - ucsi->port_switch[port] = fwnode_typec_switch_get(fwnode); - if (IS_ERR(ucsi->port_switch[port])) - return dev_err_probe(dev, PTR_ERR(ucsi->port_switch[port]), - "failed to acquire orientation-switch\n"); + ucsi->port_orientation[port] = desc; } - ucsi->client = devm_pmic_glink_register_client(dev, - PMIC_GLINK_OWNER_USBC, - pmic_glink_ucsi_callback, - pmic_glink_ucsi_pdr_notify, - ucsi); - return PTR_ERR_OR_ZERO(ucsi->client); + ucsi->client = devm_pmic_glink_client_alloc(dev, PMIC_GLINK_OWNER_USBC, + pmic_glink_ucsi_callback, + pmic_glink_ucsi_pdr_notify, + ucsi); + if (IS_ERR(ucsi->client)) + return PTR_ERR(ucsi->client); + + pmic_glink_client_register(ucsi->client); + + return 0; } static void pmic_glink_ucsi_remove(struct auxiliary_device *adev) diff --git a/drivers/usb/typec/ucsi/ucsi_stm32g0.c b/drivers/usb/typec/ucsi/ucsi_stm32g0.c index 93d7806681cf..57ef7d83a412 100644 --- a/drivers/usb/typec/ucsi/ucsi_stm32g0.c +++ b/drivers/usb/typec/ucsi/ucsi_stm32g0.c @@ -12,7 +12,7 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "ucsi.h" @@ -61,9 +61,7 @@ struct ucsi_stm32g0 { struct i2c_client *i2c_bl; bool in_bootloader; u8 bl_version; - struct completion complete; struct device *dev; - unsigned long flags; const char *fw_name; struct ucsi *ucsi; bool suspended; @@ -357,8 +355,22 @@ static int ucsi_stm32g0_read(struct ucsi *ucsi, unsigned int offset, void *val, return 0; } -static int ucsi_stm32g0_async_write(struct ucsi *ucsi, unsigned int offset, const void *val, - size_t len) +static int ucsi_stm32g0_read_version(struct ucsi *ucsi, u16 *version) +{ + return ucsi_stm32g0_read(ucsi, UCSI_VERSION, version, sizeof(*version)); +} + +static int ucsi_stm32g0_read_cci(struct ucsi *ucsi, u32 *cci) +{ + return ucsi_stm32g0_read(ucsi, UCSI_CCI, cci, sizeof(*cci)); +} + +static int ucsi_stm32g0_read_message_in(struct ucsi *ucsi, void *val, size_t len) +{ + return ucsi_stm32g0_read(ucsi, UCSI_MESSAGE_IN, val, len); +} + +static int ucsi_stm32g0_async_control(struct ucsi *ucsi, u64 command) { struct ucsi_stm32g0 *g0 = ucsi_get_drvdata(ucsi); struct i2c_client *client = g0->client; @@ -371,19 +383,19 @@ static int ucsi_stm32g0_async_write(struct ucsi *ucsi, unsigned int offset, cons unsigned char *buf; int ret; - buf = kmalloc(len + 1, GFP_KERNEL); + buf = kmalloc(sizeof(command) + 1, GFP_KERNEL); if (!buf) return -ENOMEM; - buf[0] = offset; - memcpy(&buf[1], val, len); - msg[0].len = len + 1; + buf[0] = UCSI_CONTROL; + memcpy(&buf[1], &command, sizeof(command)); + msg[0].len = sizeof(command) + 1; msg[0].buf = buf; ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); kfree(buf); if (ret != ARRAY_SIZE(msg)) { - dev_err(g0->dev, "i2c write %02x, %02x error: %d\n", client->addr, offset, ret); + dev_err(g0->dev, "i2c write %02x, %02x error: %d\n", client->addr, UCSI_CONTROL, ret); return ret < 0 ? ret : -EIO; } @@ -391,27 +403,6 @@ static int ucsi_stm32g0_async_write(struct ucsi *ucsi, unsigned int offset, cons return 0; } -static int ucsi_stm32g0_sync_write(struct ucsi *ucsi, unsigned int offset, const void *val, - size_t len) -{ - struct ucsi_stm32g0 *g0 = ucsi_get_drvdata(ucsi); - int ret; - - set_bit(COMMAND_PENDING, &g0->flags); - - ret = ucsi_stm32g0_async_write(ucsi, offset, val, len); - if (ret) - goto out_clear_bit; - - if (!wait_for_completion_timeout(&g0->complete, msecs_to_jiffies(5000))) - ret = -ETIMEDOUT; - -out_clear_bit: - clear_bit(COMMAND_PENDING, &g0->flags); - - return ret; -} - static irqreturn_t ucsi_stm32g0_irq_handler(int irq, void *data) { struct ucsi_stm32g0 *g0 = data; @@ -425,20 +416,18 @@ static irqreturn_t ucsi_stm32g0_irq_handler(int irq, void *data) if (ret) return IRQ_NONE; - if (UCSI_CCI_CONNECTOR(cci)) - ucsi_connector_change(g0->ucsi, UCSI_CCI_CONNECTOR(cci)); - - if (test_bit(COMMAND_PENDING, &g0->flags) && - cci & (UCSI_CCI_ACK_COMPLETE | UCSI_CCI_COMMAND_COMPLETE)) - complete(&g0->complete); + ucsi_notify_common(g0->ucsi, cci); return IRQ_HANDLED; } static const struct ucsi_operations ucsi_stm32g0_ops = { - .read = ucsi_stm32g0_read, - .sync_write = ucsi_stm32g0_sync_write, - .async_write = ucsi_stm32g0_async_write, + .read_version = ucsi_stm32g0_read_version, + .read_cci = ucsi_stm32g0_read_cci, + .poll_cci = ucsi_stm32g0_read_cci, + .read_message_in = ucsi_stm32g0_read_message_in, + .sync_control = ucsi_sync_control_common, + .async_control = ucsi_stm32g0_async_control, }; static int ucsi_stm32g0_register(struct ucsi *ucsi) @@ -638,7 +627,6 @@ static int ucsi_stm32g0_probe(struct i2c_client *client) g0->dev = dev; g0->client = client; - init_completion(&g0->complete); i2c_set_clientdata(client, g0); g0->ucsi = ucsi_create(dev, &ucsi_stm32g0_ops); @@ -752,8 +740,8 @@ static const struct of_device_id __maybe_unused ucsi_stm32g0_typec_of_match[] = MODULE_DEVICE_TABLE(of, ucsi_stm32g0_typec_of_match); static const struct i2c_device_id ucsi_stm32g0_typec_i2c_devid[] = { - {"stm32g0-typec", 0}, - {}, + { "stm32g0-typec" }, + {} }; MODULE_DEVICE_TABLE(i2c, ucsi_stm32g0_typec_i2c_devid); diff --git a/drivers/usb/typec/ucsi/ucsi_yoga_c630.c b/drivers/usb/typec/ucsi/ucsi_yoga_c630.c new file mode 100644 index 000000000000..d33e3f2dd1d8 --- /dev/null +++ b/drivers/usb/typec/ucsi/ucsi_yoga_c630.c @@ -0,0 +1,165 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2024, Linaro Ltd + * Authors: + * Bjorn Andersson + * Dmitry Baryshkov + */ +#include <linux/auxiliary_bus.h> +#include <linux/bitops.h> +#include <linux/completion.h> +#include <linux/container_of.h> +#include <linux/module.h> +#include <linux/notifier.h> +#include <linux/string.h> +#include <linux/platform_data/lenovo-yoga-c630.h> + +#include "ucsi.h" + +struct yoga_c630_ucsi { + struct yoga_c630_ec *ec; + struct ucsi *ucsi; + struct notifier_block nb; + u16 version; +}; + +static int yoga_c630_ucsi_read_version(struct ucsi *ucsi, u16 *version) +{ + struct yoga_c630_ucsi *uec = ucsi_get_drvdata(ucsi); + + *version = uec->version; + + return 0; +} + +static int yoga_c630_ucsi_read_cci(struct ucsi *ucsi, u32 *cci) +{ + struct yoga_c630_ucsi *uec = ucsi_get_drvdata(ucsi); + u8 buf[YOGA_C630_UCSI_READ_SIZE]; + int ret; + + ret = yoga_c630_ec_ucsi_read(uec->ec, buf); + if (ret) + return ret; + + memcpy(cci, buf, sizeof(*cci)); + + return 0; +} + +static int yoga_c630_ucsi_read_message_in(struct ucsi *ucsi, + void *val, size_t val_len) +{ + struct yoga_c630_ucsi *uec = ucsi_get_drvdata(ucsi); + u8 buf[YOGA_C630_UCSI_READ_SIZE]; + int ret; + + ret = yoga_c630_ec_ucsi_read(uec->ec, buf); + if (ret) + return ret; + + memcpy(val, buf + YOGA_C630_UCSI_CCI_SIZE, + min(val_len, YOGA_C630_UCSI_DATA_SIZE)); + + return 0; +} + +static int yoga_c630_ucsi_async_control(struct ucsi *ucsi, u64 command) +{ + struct yoga_c630_ucsi *uec = ucsi_get_drvdata(ucsi); + + return yoga_c630_ec_ucsi_write(uec->ec, (u8*)&command); +} + +static const struct ucsi_operations yoga_c630_ucsi_ops = { + .read_version = yoga_c630_ucsi_read_version, + .read_cci = yoga_c630_ucsi_read_cci, + .poll_cci = yoga_c630_ucsi_read_cci, + .read_message_in = yoga_c630_ucsi_read_message_in, + .sync_control = ucsi_sync_control_common, + .async_control = yoga_c630_ucsi_async_control, +}; + +static int yoga_c630_ucsi_notify(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct yoga_c630_ucsi *uec = container_of(nb, struct yoga_c630_ucsi, nb); + u32 cci; + int ret; + + switch (action) { + case LENOVO_EC_EVENT_USB: + case LENOVO_EC_EVENT_HPD: + ucsi_connector_change(uec->ucsi, 1); + return NOTIFY_OK; + + case LENOVO_EC_EVENT_UCSI: + ret = uec->ucsi->ops->read_cci(uec->ucsi, &cci); + if (ret) + return NOTIFY_DONE; + + ucsi_notify_common(uec->ucsi, cci); + + return NOTIFY_OK; + + default: + return NOTIFY_DONE; + } +} + +static int yoga_c630_ucsi_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) +{ + struct yoga_c630_ec *ec = adev->dev.platform_data; + struct yoga_c630_ucsi *uec; + int ret; + + uec = devm_kzalloc(&adev->dev, sizeof(*uec), GFP_KERNEL); + if (!uec) + return -ENOMEM; + + uec->ec = ec; + uec->nb.notifier_call = yoga_c630_ucsi_notify; + + uec->ucsi = ucsi_create(&adev->dev, &yoga_c630_ucsi_ops); + if (IS_ERR(uec->ucsi)) + return PTR_ERR(uec->ucsi); + + ucsi_set_drvdata(uec->ucsi, uec); + + uec->version = yoga_c630_ec_ucsi_get_version(uec->ec); + + auxiliary_set_drvdata(adev, uec); + + ret = yoga_c630_ec_register_notify(ec, &uec->nb); + if (ret) + return ret; + + return ucsi_register(uec->ucsi); +} + +static void yoga_c630_ucsi_remove(struct auxiliary_device *adev) +{ + struct yoga_c630_ucsi *uec = auxiliary_get_drvdata(adev); + + yoga_c630_ec_unregister_notify(uec->ec, &uec->nb); + ucsi_unregister(uec->ucsi); +} + +static const struct auxiliary_device_id yoga_c630_ucsi_id_table[] = { + { .name = YOGA_C630_MOD_NAME "." YOGA_C630_DEV_UCSI, }, + {} +}; +MODULE_DEVICE_TABLE(auxiliary, yoga_c630_ucsi_id_table); + +static struct auxiliary_driver yoga_c630_ucsi_driver = { + .name = YOGA_C630_DEV_UCSI, + .id_table = yoga_c630_ucsi_id_table, + .probe = yoga_c630_ucsi_probe, + .remove = yoga_c630_ucsi_remove, +}; + +module_auxiliary_driver(yoga_c630_ucsi_driver); + +MODULE_DESCRIPTION("Lenovo Yoga C630 UCSI"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/usbip/stub_rx.c b/drivers/usb/usbip/stub_rx.c index fc01b31bbb87..9aa30ef76f3b 100644 --- a/drivers/usb/usbip/stub_rx.c +++ b/drivers/usb/usbip/stub_rx.c @@ -144,53 +144,62 @@ static int tweak_set_configuration_cmd(struct urb *urb) if (err && err != -ENODEV) dev_err(&sdev->udev->dev, "can't set config #%d, error %d\n", config, err); - return 0; + return err; } static int tweak_reset_device_cmd(struct urb *urb) { struct stub_priv *priv = (struct stub_priv *) urb->context; struct stub_device *sdev = priv->sdev; + int err; dev_info(&urb->dev->dev, "usb_queue_reset_device\n"); - if (usb_lock_device_for_reset(sdev->udev, NULL) < 0) { + err = usb_lock_device_for_reset(sdev->udev, NULL); + if (err < 0) { dev_err(&urb->dev->dev, "could not obtain lock to reset device\n"); - return 0; + return err; } - usb_reset_device(sdev->udev); + err = usb_reset_device(sdev->udev); usb_unlock_device(sdev->udev); - return 0; + return err; } /* * clear_halt, set_interface, and set_configuration require special tricks. + * Returns 1 if request was tweaked, 0 otherwise. */ -static void tweak_special_requests(struct urb *urb) +static int tweak_special_requests(struct urb *urb) { + int err; + if (!urb || !urb->setup_packet) - return; + return 0; if (usb_pipetype(urb->pipe) != PIPE_CONTROL) - return; + return 0; if (is_clear_halt_cmd(urb)) /* tweak clear_halt */ - tweak_clear_halt_cmd(urb); + err = tweak_clear_halt_cmd(urb); else if (is_set_interface_cmd(urb)) /* tweak set_interface */ - tweak_set_interface_cmd(urb); + err = tweak_set_interface_cmd(urb); else if (is_set_configuration_cmd(urb)) /* tweak set_configuration */ - tweak_set_configuration_cmd(urb); + err = tweak_set_configuration_cmd(urb); else if (is_reset_device_cmd(urb)) - tweak_reset_device_cmd(urb); - else + err = tweak_reset_device_cmd(urb); + else { usbip_dbg_stub_rx("no need to tweak\n"); + return 0; + } + + return !err; } /* @@ -260,7 +269,7 @@ static int stub_recv_cmd_unlink(struct stub_device *sdev, return 0; } - usbip_dbg_stub_rx("seqnum %d is not pending\n", + usbip_dbg_stub_rx("seqnum %u is not pending\n", pdu->u.cmd_unlink.seqnum); /* @@ -468,6 +477,7 @@ static void stub_recv_cmd_submit(struct stub_device *sdev, int support_sg = 1; int np = 0; int ret, i; + int is_tweaked; if (pipe == -1) return; @@ -580,8 +590,11 @@ static void stub_recv_cmd_submit(struct stub_device *sdev, priv->urbs[i]->pipe = pipe; priv->urbs[i]->complete = stub_complete; - /* no need to submit an intercepted request, but harmless? */ - tweak_special_requests(priv->urbs[i]); + /* + * all URBs belong to a single PDU, so a global is_tweaked flag is + * enough + */ + is_tweaked = tweak_special_requests(priv->urbs[i]); masking_bogus_flags(priv->urbs[i]); } @@ -594,22 +607,32 @@ static void stub_recv_cmd_submit(struct stub_device *sdev, /* urb is now ready to submit */ for (i = 0; i < priv->num_urbs; i++) { - ret = usb_submit_urb(priv->urbs[i], GFP_KERNEL); + if (!is_tweaked) { + ret = usb_submit_urb(priv->urbs[i], GFP_KERNEL); - if (ret == 0) - usbip_dbg_stub_rx("submit urb ok, seqnum %u\n", - pdu->base.seqnum); - else { - dev_err(&udev->dev, "submit_urb error, %d\n", ret); - usbip_dump_header(pdu); - usbip_dump_urb(priv->urbs[i]); + if (ret == 0) + usbip_dbg_stub_rx("submit urb ok, seqnum %u\n", + pdu->base.seqnum); + else { + dev_err(&udev->dev, "submit_urb error, %d\n", ret); + usbip_dump_header(pdu); + usbip_dump_urb(priv->urbs[i]); + /* + * Pessimistic. + * This connection will be discarded. + */ + usbip_event_add(ud, SDEV_EVENT_ERROR_SUBMIT); + break; + } + } else { /* - * Pessimistic. - * This connection will be discarded. + * An identical URB was already submitted in + * tweak_special_requests(). Skip submitting this URB to not + * duplicate the request. */ - usbip_event_add(ud, SDEV_EVENT_ERROR_SUBMIT); - break; + priv->urbs[i]->status = 0; + stub_complete(priv->urbs[i]); } } diff --git a/drivers/usb/usbip/stub_tx.c b/drivers/usb/usbip/stub_tx.c index b1c2f6781cb3..7eb2e074012a 100644 --- a/drivers/usb/usbip/stub_tx.c +++ b/drivers/usb/usbip/stub_tx.c @@ -201,7 +201,7 @@ static int stub_send_ret_submit(struct stub_device *sdev) /* 1. setup usbip_header */ setup_ret_submit_pdu(&pdu_header, urb); - usbip_dbg_stub_tx("setup txdata seqnum: %d\n", + usbip_dbg_stub_tx("setup txdata seqnum: %u\n", pdu_header.base.seqnum); if (priv->sgl) { diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c index 82650c11e451..e70fba9f55d6 100644 --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include "usbip_common.h" #include "vhci.h" @@ -372,7 +373,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, } switch (wValue) { case USB_PORT_FEAT_SUSPEND: - if (hcd->speed == HCD_USB3) { + if (hcd->speed >= HCD_USB3) { pr_err(" ClearPortFeature: USB_PORT_FEAT_SUSPEND req not " "supported for USB 3.0 roothub\n"); goto error; @@ -388,7 +389,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case USB_PORT_FEAT_POWER: usbip_dbg_vhci_rh( " ClearPortFeature: USB_PORT_FEAT_POWER\n"); - if (hcd->speed == HCD_USB3) + if (hcd->speed >= HCD_USB3) vhci_hcd->port_status[rhport] &= ~USB_SS_PORT_STAT_POWER; else vhci_hcd->port_status[rhport] &= ~USB_PORT_STAT_POWER; @@ -404,19 +405,19 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case GetHubDescriptor: usbip_dbg_vhci_rh(" GetHubDescriptor\n"); - if (hcd->speed == HCD_USB3 && + if (hcd->speed >= HCD_USB3 && (wLength < USB_DT_SS_HUB_SIZE || wValue != (USB_DT_SS_HUB << 8))) { pr_err("Wrong hub descriptor type for USB 3.0 roothub.\n"); goto error; } - if (hcd->speed == HCD_USB3) + if (hcd->speed >= HCD_USB3) ss_hub_descriptor((struct usb_hub_descriptor *) buf); else hub_descriptor((struct usb_hub_descriptor *) buf); break; case DeviceRequest | USB_REQ_GET_DESCRIPTOR: - if (hcd->speed != HCD_USB3) + if (hcd->speed < HCD_USB3) goto error; if ((wValue >> 8) != USB_DT_BOS) @@ -503,7 +504,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case USB_PORT_FEAT_LINK_STATE: usbip_dbg_vhci_rh( " SetPortFeature: USB_PORT_FEAT_LINK_STATE\n"); - if (hcd->speed != HCD_USB3) { + if (hcd->speed < HCD_USB3) { pr_err("USB_PORT_FEAT_LINK_STATE req not " "supported for USB 2.0 roothub\n"); goto error; @@ -521,7 +522,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, usbip_dbg_vhci_rh( " SetPortFeature: USB_PORT_FEAT_U2_TIMEOUT\n"); /* TODO: add suspend/resume support! */ - if (hcd->speed != HCD_USB3) { + if (hcd->speed < HCD_USB3) { pr_err("USB_PORT_FEAT_U1/2_TIMEOUT req not " "supported for USB 2.0 roothub\n"); goto error; @@ -531,7 +532,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, usbip_dbg_vhci_rh( " SetPortFeature: USB_PORT_FEAT_SUSPEND\n"); /* Applicable only for USB2.0 hub */ - if (hcd->speed == HCD_USB3) { + if (hcd->speed >= HCD_USB3) { pr_err("USB_PORT_FEAT_SUSPEND req not " "supported for USB 3.0 roothub\n"); goto error; @@ -551,7 +552,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, pr_err("invalid port number %d\n", wIndex); goto error; } - if (hcd->speed == HCD_USB3) + if (hcd->speed >= HCD_USB3) vhci_hcd->port_status[rhport] |= USB_SS_PORT_STAT_POWER; else vhci_hcd->port_status[rhport] |= USB_PORT_STAT_POWER; @@ -564,7 +565,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, goto error; } /* Applicable only for USB3.0 hub */ - if (hcd->speed != HCD_USB3) { + if (hcd->speed < HCD_USB3) { pr_err("USB_PORT_FEAT_BH_PORT_RESET req not " "supported for USB 2.0 roothub\n"); goto error; @@ -578,7 +579,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, goto error; } /* if it's already enabled, disable */ - if (hcd->speed == HCD_USB3) { + if (hcd->speed >= HCD_USB3) { vhci_hcd->port_status[rhport] = 0; vhci_hcd->port_status[rhport] = (USB_SS_PORT_STAT_POWER | @@ -602,7 +603,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, } if (wValue >= 32) goto error; - if (hcd->speed == HCD_USB3) { + if (hcd->speed >= HCD_USB3) { if ((vhci_hcd->port_status[rhport] & USB_SS_PORT_STAT_POWER) != 0) { vhci_hcd->port_status[rhport] |= (1 << wValue); @@ -616,7 +617,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case GetPortErrorCount: usbip_dbg_vhci_rh(" GetPortErrorCount\n"); - if (hcd->speed != HCD_USB3) { + if (hcd->speed < HCD_USB3) { pr_err("GetPortErrorCount req not " "supported for USB 2.0 roothub\n"); goto error; @@ -626,7 +627,7 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case SetHubDepth: usbip_dbg_vhci_rh(" SetHubDepth\n"); - if (hcd->speed != HCD_USB3) { + if (hcd->speed < HCD_USB3) { pr_err("SetHubDepth req not supported for " "USB 2.0 roothub\n"); goto error; @@ -646,7 +647,7 @@ error: if (!invalid_rhport) { dump_port_status_diff(prev_port_status[rhport], vhci_hcd->port_status[rhport], - hcd->speed == HCD_USB3); + hcd->speed >= HCD_USB3); } } usbip_dbg_vhci_rh(" bye\n"); @@ -675,7 +676,7 @@ static void vhci_tx_urb(struct urb *urb, struct vhci_device *vdev) spin_lock_irqsave(&vdev->priv_lock, flags); - priv->seqnum = atomic_inc_return(&vhci_hcd->seqnum); + priv->seqnum = (u32)atomic_inc_return(&vhci_hcd->seqnum); if (priv->seqnum == 0xffff) dev_info(&urb->dev->dev, "seqnum max\n"); @@ -745,6 +746,7 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flag * */ if (usb_pipedevice(urb->pipe) == 0) { + struct usb_device *old; __u8 type = usb_pipetype(urb->pipe); struct usb_ctrlrequest *ctrlreq = (struct usb_ctrlrequest *) urb->setup_packet; @@ -755,14 +757,15 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flag goto no_need_xmit; } + old = vdev->udev; switch (ctrlreq->bRequest) { case USB_REQ_SET_ADDRESS: /* set_address may come when a device is reset */ dev_info(dev, "SetAddress Request (%d) to port %d\n", ctrlreq->wValue, vdev->rhport); - usb_put_dev(vdev->udev); vdev->udev = usb_get_dev(urb->dev); + usb_put_dev(old); spin_lock(&vdev->ud.lock); vdev->ud.status = VDEV_ST_USED; @@ -781,8 +784,8 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flag usbip_dbg_vhci_hc( "Not yet?:Get_Descriptor to device 0 (get max pipe size)\n"); - usb_put_dev(vdev->udev); vdev->udev = usb_get_dev(urb->dev); + usb_put_dev(old); goto out; default: @@ -1067,6 +1070,7 @@ static void vhci_shutdown_connection(struct usbip_device *ud) static void vhci_device_reset(struct usbip_device *ud) { struct vhci_device *vdev = container_of(ud, struct vhci_device, ud); + struct usb_device *old = vdev->udev; unsigned long flags; spin_lock_irqsave(&ud->lock, flags); @@ -1074,8 +1078,8 @@ static void vhci_device_reset(struct usbip_device *ud) vdev->speed = 0; vdev->devid = 0; - usb_put_dev(vdev->udev); vdev->udev = NULL; + usb_put_dev(old); if (ud->tcp_socket) { sockfd_put(ud->tcp_socket); @@ -1154,16 +1158,12 @@ static int vhci_setup(struct usb_hcd *hcd) } else { vhci->vhci_hcd_ss = hcd_to_vhci_hcd(hcd); vhci->vhci_hcd_ss->vhci = vhci; - hcd->speed = HCD_USB3; - hcd->self.root_hub->speed = USB_SPEED_SUPER; + hcd->speed = HCD_USB31; + hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS; } - /* - * Support SG. - * sg_tablesize is an arbitrary value to alleviate memory pressure - * on the host. - */ - hcd->self.sg_tablesize = 32; + /* accept arbitrarily long scatter-gather lists */ + hcd->self.sg_tablesize = ~0; hcd->self.no_sg_constraint = 1; return 0; @@ -1316,7 +1316,7 @@ static const struct hc_driver vhci_hc_driver = { .product_desc = driver_desc, .hcd_priv_size = sizeof(struct vhci_hcd), - .flags = HCD_USB3 | HCD_SHARED, + .flags = HCD_USB31 | HCD_SHARED, .reset = vhci_setup, .start = vhci_start, @@ -1450,7 +1450,7 @@ static int vhci_hcd_suspend(struct platform_device *pdev, pm_message_t state) if (connected > 0) { dev_info(&pdev->dev, "We have %d active connection%s. Do not suspend.\n", - connected, (connected == 1 ? "" : "s")); + connected, str_plural(connected)); ret = -EBUSY; } else { dev_info(&pdev->dev, "suspend vhci_hcd"); @@ -1484,7 +1484,7 @@ static int vhci_hcd_resume(struct platform_device *pdev) static struct platform_driver vhci_driver = { .probe = vhci_hcd_probe, - .remove_new = vhci_hcd_remove, + .remove = vhci_hcd_remove, .suspend = vhci_hcd_suspend, .resume = vhci_hcd_resume, .driver = { diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c index 7f2d1c241559..a75f4a898a41 100644 --- a/drivers/usb/usbip/vhci_rx.c +++ b/drivers/usb/usbip/vhci_rx.c @@ -66,7 +66,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev, spin_unlock_irqrestore(&vdev->priv_lock, flags); if (!urb) { - pr_err("cannot find a urb of seqnum %u max seqnum %d\n", + pr_err("cannot find a urb of seqnum %u max seqnum %u\n", pdu->base.seqnum, atomic_read(&vhci_hcd->seqnum)); usbip_event_add(ud, VDEV_EVENT_ERROR_TCP); @@ -162,10 +162,10 @@ static void vhci_recv_ret_unlink(struct vhci_device *vdev, * already received the result of its submit result and gave * back the URB. */ - pr_info("the urb (seqnum %d) was already given back\n", + pr_info("the urb (seqnum %u) was already given back\n", pdu->base.seqnum); } else { - usbip_dbg_vhci_rx("now giveback urb %d\n", pdu->base.seqnum); + usbip_dbg_vhci_rx("now giveback urb %u\n", pdu->base.seqnum); /* If unlink is successful, status is -ECONNRESET */ urb->status = pdu->u.ret_unlink.status; diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c index e2847cd3e6e3..d5865460e82d 100644 --- a/drivers/usb/usbip/vhci_sysfs.c +++ b/drivers/usb/usbip/vhci_sysfs.c @@ -283,6 +283,7 @@ static int valid_args(__u32 *pdev_nr, __u32 *rhport, case USB_SPEED_HIGH: case USB_SPEED_WIRELESS: case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: break; default: pr_err("Failed attach request for unsupported USB speed: %s\n", @@ -349,7 +350,7 @@ static ssize_t attach_store(struct device *dev, struct device_attribute *attr, vhci_hcd = hcd_to_vhci_hcd(hcd); vhci = vhci_hcd->vhci; - if (speed == USB_SPEED_SUPER) + if (speed >= USB_SPEED_SUPER) vdev = &vhci->vhci_hcd_ss->vdev[rhport]; else vdev = &vhci->vhci_hcd_hs->vdev[rhport]; diff --git a/drivers/usb/usbip/vudc_main.c b/drivers/usb/usbip/vudc_main.c index 8bee553e4894..993e721cb840 100644 --- a/drivers/usb/usbip/vudc_main.c +++ b/drivers/usb/usbip/vudc_main.c @@ -19,7 +19,7 @@ MODULE_PARM_DESC(num, "number of emulated controllers"); static struct platform_driver vudc_driver = { .probe = vudc_probe, - .remove_new = vudc_remove, + .remove = vudc_remove, .driver = { .name = GADGET_NAME, .dev_groups = vudc_groups, diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c index 907a43a00896..2aae3edfc813 100644 --- a/drivers/usb/usbip/vudc_sysfs.c +++ b/drivers/usb/usbip/vudc_sysfs.c @@ -67,7 +67,7 @@ out: * Exposes device descriptor from the gadget driver. */ static ssize_t dev_desc_read(struct file *file, struct kobject *kobj, - struct bin_attribute *attr, char *out, + const struct bin_attribute *attr, char *out, loff_t off, size_t count) { struct device *dev = kobj_to_dev(kobj); @@ -88,7 +88,7 @@ unlock: spin_unlock_irqrestore(&udc->lock, flags); return ret; } -static BIN_ATTR_RO(dev_desc, sizeof(struct usb_device_descriptor)); +static const BIN_ATTR_RO(dev_desc, sizeof(struct usb_device_descriptor)); static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *attr, @@ -252,14 +252,14 @@ static struct attribute *dev_attrs[] = { NULL, }; -static struct bin_attribute *dev_bin_attrs[] = { +static const struct bin_attribute *const dev_bin_attrs[] = { &bin_attr_dev_desc, NULL, }; static const struct attribute_group vudc_attr_group = { .attrs = dev_attrs, - .bin_attrs = dev_bin_attrs, + .bin_attrs_new = dev_bin_attrs, }; const struct attribute_group *vudc_groups[] = { diff --git a/drivers/usb/usbip/vudc_tx.c b/drivers/usb/usbip/vudc_tx.c index 3ccb17c3e840..30c11bf9f4e7 100644 --- a/drivers/usb/usbip/vudc_tx.c +++ b/drivers/usb/usbip/vudc_tx.c @@ -107,7 +107,7 @@ static int v_send_ret_submit(struct vudc *udc, struct urbp *urb_p) /* 1. setup usbip_header */ setup_ret_submit_pdu(&pdu_header, urb_p); - usbip_dbg_stub_tx("setup txdata seqnum: %d\n", + usbip_dbg_stub_tx("setup txdata seqnum: %u\n", pdu_header.base.seqnum); usbip_header_correct_endian(&pdu_header, 1); |