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-rw-r--r--arch/mips/configs/mtx1_defconfig1
-rw-r--r--arch/powerpc/configs/ppc6xx_defconfig1
-rw-r--r--drivers/usb/Makefile1
-rw-r--r--drivers/usb/host/Kconfig27
-rw-r--r--drivers/usb/host/Makefile1
-rw-r--r--drivers/usb/host/u132-hcd.c3239
-rw-r--r--drivers/usb/misc/Kconfig2
7 files changed, 0 insertions, 3272 deletions
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 89a1511d2ee4..7b6a2a9daa10 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -497,7 +497,6 @@ CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PLATFORM=m
CONFIG_USB_UHCI_HCD=m
-CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
CONFIG_USB_SL811_CS=m
CONFIG_USB_ACM=m
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 110258277959..fd5cc93c4a99 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -845,7 +845,6 @@ CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
CONFIG_USB_UHCI_HCD=m
-CONFIG_USB_U132_HCD=m
CONFIG_USB_SL811_HCD=m
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index a81e6ef293af..3a9a0dd4be70 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -31,7 +31,6 @@ obj-$(CONFIG_USB_FHCI_HCD) += host/
obj-$(CONFIG_USB_XHCI_HCD) += host/
obj-$(CONFIG_USB_SL811_HCD) += host/
obj-$(CONFIG_USB_ISP1362_HCD) += host/
-obj-$(CONFIG_USB_U132_HCD) += host/
obj-$(CONFIG_USB_R8A66597_HCD) += host/
obj-$(CONFIG_USB_FSL_USB2) += host/
obj-$(CONFIG_USB_FOTG210_HCD) += host/
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index eacb603ad1b2..c170672f847e 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -622,33 +622,6 @@ config FHCI_DEBUG
Say "y" to see some FHCI debug information and statistics
through debugfs.
-config USB_U132_HCD
- tristate "Elan U132 Adapter Host Controller"
- depends on USB_FTDI_ELAN
- help
- The U132 adapter is a USB to CardBus adapter specifically designed
- for PC cards that contain an OHCI host controller. Typical PC cards
- are the Orange Mobile 3G Option GlobeTrotter Fusion card. The U132
- adapter will *NOT* work with PC cards that do not contain an OHCI
- controller.
-
- For those PC cards that contain multiple OHCI controllers only the
- first one is used.
-
- The driver consists of two modules, the "ftdi-elan" module is a
- USB client driver that interfaces to the FTDI chip within ELAN's
- USB-to-PCMCIA adapter, and this "u132-hcd" module is a USB host
- controller driver that talks to the OHCI controller within the
- CardBus cards that are inserted in the U132 adapter.
-
- This driver has been tested with a CardBus OHCI USB adapter, and
- worked with a USB PEN Drive inserted into the first USB port of
- the PCCARD. A rather pointless thing to do, but useful for testing.
-
- It is safe to say M here.
-
- See also <http://www.elandigitalsystems.com/support/ufaq/u132linux.php>
-
config USB_SL811_HCD
tristate "SL811HS HCD support"
depends on HAS_IOMEM
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 5a13712f367d..be4e5245c52f 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -76,7 +76,6 @@ obj-$(CONFIG_USB_XHCI_MTK) += xhci-mtk-hcd.o
obj-$(CONFIG_USB_XHCI_TEGRA) += xhci-tegra.o
obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
-obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o
obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o
obj-$(CONFIG_USB_FSL_USB2) += fsl-mph-dr-of.o
obj-$(CONFIG_USB_EHCI_FSL) += fsl-mph-dr-of.o
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
deleted file mode 100644
index 45244c791bcb..000000000000
--- a/drivers/usb/host/u132-hcd.c
+++ /dev/null
@@ -1,3239 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
-* Host Controller Driver for the Elan Digital Systems U132 adapter
-*
-* Copyright(C) 2006 Elan Digital Systems Limited
-* http://www.elandigitalsystems.com
-*
-* Author and Maintainer - Tony Olech - Elan Digital Systems
-* tony.olech@elandigitalsystems.com
-*
-* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
-* based on various USB host drivers in the 2.6.15 linux kernel
-* with constant reference to the 3rd Edition of Linux Device Drivers
-* published by O'Reilly
-*
-* The U132 adapter is a USB to CardBus adapter specifically designed
-* for PC cards that contain an OHCI host controller. Typical PC cards
-* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
-*
-* The U132 adapter will *NOT *work with PC cards that do not contain
-* an OHCI controller. A simple way to test whether a PC card has an
-* OHCI controller as an interface is to insert the PC card directly
-* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
-* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
-* then there is a good chance that the U132 adapter will support the
-* PC card.(you also need the specific client driver for the PC card)
-*
-* Please inform the Author and Maintainer about any PC cards that
-* contain OHCI Host Controller and work when directly connected to
-* an embedded CardBus slot but do not work when they are connected
-* via an ELAN U132 adapter.
-*
-*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/pci_ids.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/byteorder.h>
-
- /* FIXME ohci.h is ONLY for internal use by the OHCI driver.
- * If you're going to try stuff like this, you need to split
- * out shareable stuff (register declarations?) into its own
- * file, maybe name <linux/usb/ohci.h>
- */
-
-#include "ohci.h"
-#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
-#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
- OHCI_INTR_WDH)
-MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
-MODULE_DESCRIPTION("U132 USB Host Controller Driver");
-MODULE_LICENSE("GPL");
-#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
-INT_MODULE_PARM(testing, 0);
-/* Some boards misreport power switching/overcurrent*/
-static bool distrust_firmware = true;
-module_param(distrust_firmware, bool, 0);
-MODULE_PARM_DESC(distrust_firmware,
- "true to distrust firmware power/overcurrentt setup");
-static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
-/*
-* u132_module_lock exists to protect access to global variables
-*
-*/
-static DEFINE_MUTEX(u132_module_lock);
-static int u132_exiting;
-static int u132_instances;
-/*
-* end of the global variables protected by u132_module_lock
-*/
-static struct workqueue_struct *workqueue;
-#define MAX_U132_PORTS 7
-#define MAX_U132_ADDRS 128
-#define MAX_U132_UDEVS 4
-#define MAX_U132_ENDPS 100
-#define MAX_U132_RINGS 4
-static const char *cc_to_text[16] = {
- "No Error ",
- "CRC Error ",
- "Bit Stuff ",
- "Data Togg ",
- "Stall ",
- "DevNotResp ",
- "PIDCheck ",
- "UnExpPID ",
- "DataOver ",
- "DataUnder ",
- "(for hw) ",
- "(for hw) ",
- "BufferOver ",
- "BuffUnder ",
- "(for HCD) ",
- "(for HCD) "
-};
-struct u132_port {
- struct u132 *u132;
- int reset;
- int enable;
- int power;
- int Status;
-};
-struct u132_addr {
- u8 address;
-};
-struct u132_udev {
- struct kref kref;
- struct usb_device *usb_device;
- u8 enumeration;
- u8 udev_number;
- u8 usb_addr;
- u8 portnumber;
- u8 endp_number_in[16];
- u8 endp_number_out[16];
-};
-#define ENDP_QUEUE_SHIFT 3
-#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
-#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
-struct u132_urbq {
- struct list_head urb_more;
- struct urb *urb;
-};
-struct u132_spin {
- spinlock_t slock;
-};
-struct u132_endp {
- struct kref kref;
- u8 udev_number;
- u8 endp_number;
- u8 usb_addr;
- u8 usb_endp;
- struct u132 *u132;
- struct list_head endp_ring;
- struct u132_ring *ring;
- unsigned toggle_bits:2;
- unsigned active:1;
- unsigned delayed:1;
- unsigned input:1;
- unsigned output:1;
- unsigned pipetype:2;
- unsigned dequeueing:1;
- unsigned edset_flush:1;
- unsigned spare_bits:14;
- unsigned long jiffies;
- struct usb_host_endpoint *hep;
- struct u132_spin queue_lock;
- u16 queue_size;
- u16 queue_last;
- u16 queue_next;
- struct urb *urb_list[ENDP_QUEUE_SIZE];
- struct list_head urb_more;
- struct delayed_work scheduler;
-};
-struct u132_ring {
- unsigned in_use:1;
- unsigned length:7;
- u8 number;
- struct u132 *u132;
- struct u132_endp *curr_endp;
- struct delayed_work scheduler;
-};
-struct u132 {
- struct kref kref;
- struct mutex sw_lock;
- struct mutex scheduler_lock;
- struct u132_platform_data *board;
- struct platform_device *platform_dev;
- struct u132_ring ring[MAX_U132_RINGS];
- int sequence_num;
- int going;
- int power;
- int reset;
- int num_ports;
- u32 hc_control;
- u32 hc_fminterval;
- u32 hc_roothub_status;
- u32 hc_roothub_a;
- u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
- int flags;
- unsigned long next_statechange;
- struct delayed_work monitor;
- int num_endpoints;
- struct u132_addr addr[MAX_U132_ADDRS];
- struct u132_udev udev[MAX_U132_UDEVS];
- struct u132_port port[MAX_U132_PORTS];
- struct u132_endp *endp[MAX_U132_ENDPS];
-};
-
-/*
-* these cannot be inlines because we need the structure offset!!
-* Does anyone have a better way?????
-*/
-#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \
- offsetof(struct ohci_regs, member), 0, data);
-#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \
- offsetof(struct ohci_regs, member), 0, data)
-#define u132_read_pcimem(u132, member, data) \
- usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
- ohci_regs, member), 0, data)
-#define u132_write_pcimem(u132, member, data) \
- usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
- ohci_regs, member), 0, data)
-static inline struct u132 *udev_to_u132(struct u132_udev *udev)
-{
- u8 udev_number = udev->udev_number;
- return container_of(udev, struct u132, udev[udev_number]);
-}
-
-static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
-{
- return (struct u132 *)(hcd->hcd_priv);
-}
-
-static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
-{
- return container_of((void *)u132, struct usb_hcd, hcd_priv);
-}
-
-static inline void u132_disable(struct u132 *u132)
-{
- u132_to_hcd(u132)->state = HC_STATE_HALT;
-}
-
-
-#define kref_to_u132(d) container_of(d, struct u132, kref)
-#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
-#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
-#include "../misc/usb_u132.h"
-static const char hcd_name[] = "u132_hcd";
-#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
- USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
- USB_PORT_STAT_C_RESET) << 16)
-static void u132_hcd_delete(struct kref *kref)
-{
- struct u132 *u132 = kref_to_u132(kref);
- struct platform_device *pdev = u132->platform_dev;
- struct usb_hcd *hcd = u132_to_hcd(u132);
- u132->going += 1;
- mutex_lock(&u132_module_lock);
- u132_instances -= 1;
- mutex_unlock(&u132_module_lock);
- dev_warn(&u132->platform_dev->dev,
- "FREEING the hcd=%p and thus the u132=%p going=%d pdev=%p\n",
- hcd, u132, u132->going, pdev);
- usb_put_hcd(hcd);
-}
-
-static inline void u132_u132_put_kref(struct u132 *u132)
-{
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static inline void u132_u132_init_kref(struct u132 *u132)
-{
- kref_init(&u132->kref);
-}
-
-static void u132_udev_delete(struct kref *kref)
-{
- struct u132_udev *udev = kref_to_u132_udev(kref);
- udev->udev_number = 0;
- udev->usb_device = NULL;
- udev->usb_addr = 0;
- udev->enumeration = 0;
-}
-
-static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
-{
- kref_put(&udev->kref, u132_udev_delete);
-}
-
-static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
-{
- kref_get(&udev->kref);
-}
-
-static inline void u132_udev_init_kref(struct u132 *u132,
- struct u132_udev *udev)
-{
- kref_init(&udev->kref);
-}
-
-static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
-{
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
- unsigned int delta)
-{
- if (delta > 0) {
- if (queue_delayed_work(workqueue, &ring->scheduler, delta))
- return;
- } else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
- return;
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
- unsigned int delta)
-{
- kref_get(&u132->kref);
- u132_ring_requeue_work(u132, ring, delta);
-}
-
-static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
-{
- if (cancel_delayed_work(&ring->scheduler))
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static void u132_endp_delete(struct kref *kref)
-{
- struct u132_endp *endp = kref_to_u132_endp(kref);
- struct u132 *u132 = endp->u132;
- u8 usb_addr = endp->usb_addr;
- u8 usb_endp = endp->usb_endp;
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- u8 endp_number = endp->endp_number;
- struct usb_host_endpoint *hep = endp->hep;
- struct u132_ring *ring = endp->ring;
- struct list_head *head = &endp->endp_ring;
- ring->length -= 1;
- if (endp == ring->curr_endp) {
- if (list_empty(head)) {
- ring->curr_endp = NULL;
- list_del(head);
- } else {
- struct u132_endp *next_endp = list_entry(head->next,
- struct u132_endp, endp_ring);
- ring->curr_endp = next_endp;
- list_del(head);
- }
- } else {
- list_del(head);
- }
- if (endp->input) {
- udev->endp_number_in[usb_endp] = 0;
- u132_udev_put_kref(u132, udev);
- }
- if (endp->output) {
- udev->endp_number_out[usb_endp] = 0;
- u132_udev_put_kref(u132, udev);
- }
- u132->endp[endp_number - 1] = NULL;
- hep->hcpriv = NULL;
- kfree(endp);
- u132_u132_put_kref(u132);
-}
-
-static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
-{
- kref_put(&endp->kref, u132_endp_delete);
-}
-
-static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
-{
- kref_get(&endp->kref);
-}
-
-static inline void u132_endp_init_kref(struct u132 *u132,
- struct u132_endp *endp)
-{
- kref_init(&endp->kref);
- kref_get(&u132->kref);
-}
-
-static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
- unsigned int delta)
-{
- if (queue_delayed_work(workqueue, &endp->scheduler, delta))
- kref_get(&endp->kref);
-}
-
-static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
-{
- if (cancel_delayed_work(&endp->scheduler))
- kref_put(&endp->kref, u132_endp_delete);
-}
-
-static inline void u132_monitor_put_kref(struct u132 *u132)
-{
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
-{
- if (queue_delayed_work(workqueue, &u132->monitor, delta))
- kref_get(&u132->kref);
-}
-
-static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
-{
- if (!queue_delayed_work(workqueue, &u132->monitor, delta))
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static void u132_monitor_cancel_work(struct u132 *u132)
-{
- if (cancel_delayed_work(&u132->monitor))
- kref_put(&u132->kref, u132_hcd_delete);
-}
-
-static int read_roothub_info(struct u132 *u132)
-{
- u32 revision;
- int retval;
- struct device *dev = &u132->platform_dev->dev;
-
- retval = u132_read_pcimem(u132, revision, &revision);
- if (retval) {
- dev_err(dev, "error %d accessing device control\n", retval);
- return retval;
- } else if ((revision & 0xFF) == 0x10) {
- } else if ((revision & 0xFF) == 0x11) {
- } else {
- dev_err(dev, "device revision is not valid %08X\n", revision);
- return -ENODEV;
- }
- retval = u132_read_pcimem(u132, control, &u132->hc_control);
- if (retval) {
- dev_err(dev, "error %d accessing device control\n", retval);
- return retval;
- }
- retval = u132_read_pcimem(u132, roothub.status,
- &u132->hc_roothub_status);
- if (retval) {
- dev_err(dev, "error %d accessing device reg roothub.status\n", retval);
- return retval;
- }
- retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
- if (retval) {
- dev_err(dev, "error %d accessing device reg roothub.a\n", retval);
- return retval;
- }
- {
- int I = u132->num_ports;
- int i = 0;
- while (I-- > 0) {
- retval = u132_read_pcimem(u132, roothub.portstatus[i],
- &u132->hc_roothub_portstatus[i]);
- if (retval) {
- dev_err(dev, "error %d accessing device roothub.portstatus[%d]\n",
- retval, i);
- return retval;
- } else {
- i += 1;
- }
- }
- }
- return 0;
-}
-
-static void u132_hcd_monitor_work(struct work_struct *work)
-{
- struct u132 *u132 = container_of(work, struct u132, monitor.work);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev, "device has been removed %d\n",
- u132->going);
- u132_monitor_put_kref(u132);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- u132_monitor_put_kref(u132);
- return;
- } else {
- int retval;
- mutex_lock(&u132->sw_lock);
- retval = read_roothub_info(u132);
- if (retval) {
- struct usb_hcd *hcd = u132_to_hcd(u132);
- u132_disable(u132);
- u132->going = 1;
- mutex_unlock(&u132->sw_lock);
- usb_hc_died(hcd);
- ftdi_elan_gone_away(u132->platform_dev);
- u132_monitor_put_kref(u132);
- return;
- } else {
- u132_monitor_requeue_work(u132, 500);
- mutex_unlock(&u132->sw_lock);
- return;
- }
- }
-}
-
-static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
- struct urb *urb, int status)
-{
- struct u132_ring *ring;
- unsigned long irqs;
- struct usb_hcd *hcd = u132_to_hcd(u132);
- urb->error_count = 0;
- spin_lock_irqsave(&endp->queue_lock.slock, irqs);
- usb_hcd_unlink_urb_from_ep(hcd, urb);
- endp->queue_next += 1;
- if (ENDP_QUEUE_SIZE > --endp->queue_size) {
- endp->active = 0;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- } else {
- struct list_head *next = endp->urb_more.next;
- struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
- urb_more);
- list_del(next);
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
- urbq->urb;
- endp->active = 0;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- kfree(urbq);
- }
- mutex_lock(&u132->scheduler_lock);
- ring = endp->ring;
- ring->in_use = 0;
- u132_ring_cancel_work(u132, ring);
- u132_ring_queue_work(u132, ring, 0);
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- usb_hcd_giveback_urb(hcd, urb, status);
-}
-
-static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
- struct urb *urb, int status)
-{
- u132_endp_put_kref(u132, endp);
-}
-
-static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
- struct urb *urb, int status)
-{
- unsigned long irqs;
- struct usb_hcd *hcd = u132_to_hcd(u132);
- urb->error_count = 0;
- spin_lock_irqsave(&endp->queue_lock.slock, irqs);
- usb_hcd_unlink_urb_from_ep(hcd, urb);
- endp->queue_next += 1;
- if (ENDP_QUEUE_SIZE > --endp->queue_size) {
- endp->active = 0;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- } else {
- struct list_head *next = endp->urb_more.next;
- struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
- urb_more);
- list_del(next);
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
- urbq->urb;
- endp->active = 0;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- kfree(urbq);
- }
- usb_hcd_giveback_urb(hcd, urb, status);
-}
-
-static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
- struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
- void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
- int toggle_bits, int error_count, int condition_code, int repeat_number,
- int halted, int skipped, int actual, int non_null))
-{
- return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
- urb, address, endp->usb_endp, toggle_bits, callback);
-}
-
-static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
- struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
- void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
- int toggle_bits, int error_count, int condition_code, int repeat_number,
- int halted, int skipped, int actual, int non_null))
-{
- return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
- urb, address, endp->usb_endp, toggle_bits, callback);
-}
-
-static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
- struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
- void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
- int toggle_bits, int error_count, int condition_code, int repeat_number,
- int halted, int skipped, int actual, int non_null))
-{
- return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
- endp, urb, address, endp->usb_endp, toggle_bits, callback);
-}
-
-static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
- struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
- void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
- int toggle_bits, int error_count, int condition_code, int repeat_number,
- int halted, int skipped, int actual, int non_null))
-{
- return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
- endp, urb, address, endp->usb_endp, toggle_bits, callback);
-}
-
-
-/*
-* must not LOCK sw_lock
-*
-*/
-static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev, "device has been removed %d\n",
- u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- struct u132_ring *ring = endp->ring;
- u8 *u = urb->transfer_buffer + urb->actual_length;
- u8 *b = buf;
- int L = len;
-
- while (L-- > 0)
- *u++ = *b++;
-
- urb->actual_length += len;
- if ((condition_code == TD_CC_NOERROR) &&
- (urb->transfer_buffer_length > urb->actual_length)) {
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0,
- 1 & toggle_bits);
- if (urb->actual_length > 0) {
- int retval;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_single(u132, ring, endp, urb,
- address, endp->toggle_bits,
- u132_hcd_interrupt_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb,
- retval);
- } else {
- ring->in_use = 0;
- endp->active = 0;
- endp->jiffies = jiffies +
- msecs_to_jiffies(urb->interval);
- u132_ring_cancel_work(u132, ring);
- u132_ring_queue_work(u132, ring, 0);
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- }
- return;
- } else if ((condition_code == TD_DATAUNDERRUN) &&
- ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0,
- 1 & toggle_bits);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else {
- if (condition_code == TD_CC_NOERROR) {
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp,
- 0, 1 & toggle_bits);
- } else if (condition_code == TD_CC_STALL) {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, endp->usb_endp,
- 0, 0);
- } else {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, endp->usb_endp,
- 0, 0);
- dev_err(&u132->platform_dev->dev, "urb=%p giving back INTERRUPT %s\n",
- urb, cc_to_text[condition_code]);
- }
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb,
- cc_to_error[condition_code]);
- return;
- }
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n", urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev, "device has been removed %d\n",
- u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- struct u132_ring *ring = endp->ring;
- urb->actual_length += len;
- endp->toggle_bits = toggle_bits;
- if (urb->transfer_buffer_length > urb->actual_length) {
- int retval;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_output(u132, ring, endp, urb, address,
- endp->toggle_bits, u132_hcd_bulk_output_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else {
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n", urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- struct u132_ring *ring = endp->ring;
- u8 *u = urb->transfer_buffer + urb->actual_length;
- u8 *b = buf;
- int L = len;
-
- while (L-- > 0)
- *u++ = *b++;
-
- urb->actual_length += len;
- if ((condition_code == TD_CC_NOERROR) &&
- (urb->transfer_buffer_length > urb->actual_length)) {
- int retval;
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0,
- 1 & toggle_bits);
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_input(u132->platform_dev,
- ring->number, endp, urb, address,
- endp->usb_endp, endp->toggle_bits,
- u132_hcd_bulk_input_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else if (condition_code == TD_CC_NOERROR) {
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0,
- 1 & toggle_bits);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb,
- cc_to_error[condition_code]);
- return;
- } else if ((condition_code == TD_DATAUNDERRUN) &&
- ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0,
- 1 & toggle_bits);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else if (condition_code == TD_DATAUNDERRUN) {
- endp->toggle_bits = toggle_bits;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0,
- 1 & toggle_bits);
- dev_warn(&u132->platform_dev->dev,
- "urb=%p(SHORT NOT OK) giving back BULK IN %s\n",
- urb, cc_to_text[condition_code]);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else if (condition_code == TD_CC_STALL) {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb,
- cc_to_error[condition_code]);
- return;
- } else {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
- dev_err(&u132->platform_dev->dev,
- "urb=%p giving back BULK IN code=%d %s\n",
- urb, condition_code, cc_to_text[condition_code]);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb,
- cc_to_error[condition_code]);
- return;
- }
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- struct u132_ring *ring = endp->ring;
- u8 *u = urb->transfer_buffer;
- u8 *b = buf;
- int L = len;
-
- while (L-- > 0)
- *u++ = *b++;
-
- urb->actual_length = len;
- if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
- TD_DATAUNDERRUN) && ((urb->transfer_flags &
- URB_SHORT_NOT_OK) == 0))) {
- int retval;
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
- ring->number, endp, urb, address,
- endp->usb_endp, 0x3,
- u132_hcd_configure_empty_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else if (condition_code == TD_CC_STALL) {
- mutex_unlock(&u132->scheduler_lock);
- dev_warn(&u132->platform_dev->dev,
- "giving back SETUP INPUT STALL urb %p\n", urb);
- u132_hcd_giveback_urb(u132, endp, urb,
- cc_to_error[condition_code]);
- return;
- } else {
- mutex_unlock(&u132->scheduler_lock);
- dev_err(&u132->platform_dev->dev,
- "giving back SETUP INPUT %s urb %p\n",
- cc_to_text[condition_code], urb);
- u132_hcd_giveback_urb(u132, endp, urb,
- cc_to_error[condition_code]);
- return;
- }
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev, "device has been removed %d\n",
- u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev, "device has been removed %d\n",
- u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- if (usb_pipein(urb->pipe)) {
- int retval;
- struct u132_ring *ring = endp->ring;
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_input(u132->platform_dev,
- ring->number, endp, urb, address,
- endp->usb_endp, 0,
- u132_hcd_configure_input_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else {
- int retval;
- struct u132_ring *ring = endp->ring;
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_input(u132->platform_dev,
- ring->number, endp, urb, address,
- endp->usb_endp, 0,
- u132_hcd_configure_empty_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- }
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
- u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- u132->addr[0].address = 0;
- endp->usb_addr = udev->usb_addr;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
- u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- int retval;
- struct u132_ring *ring = endp->ring;
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_input(u132->platform_dev,
- ring->number, endp, urb, 0, endp->usb_endp, 0,
- u132_hcd_enumeration_empty_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- int retval;
- struct u132_ring *ring = endp->ring;
- u8 *u = urb->transfer_buffer;
- u8 *b = buf;
- int L = len;
-
- while (L-- > 0)
- *u++ = *b++;
-
- urb->actual_length = len;
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
- ring->number, endp, urb, address, endp->usb_endp, 0x3,
- u132_hcd_initial_empty_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
- int len, int toggle_bits, int error_count, int condition_code,
- int repeat_number, int halted, int skipped, int actual, int non_null)
-{
- struct u132_endp *endp = data;
- struct u132 *u132 = endp->u132;
- u8 address = u132->addr[endp->usb_addr].address;
- mutex_lock(&u132->scheduler_lock);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (endp->dequeueing) {
- endp->dequeueing = 0;
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
- return;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
- return;
- } else if (!urb->unlinked) {
- int retval;
- struct u132_ring *ring = endp->ring;
- mutex_unlock(&u132->scheduler_lock);
- retval = usb_ftdi_elan_edset_input(u132->platform_dev,
- ring->number, endp, urb, address, endp->usb_endp, 0,
- u132_hcd_initial_input_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else {
- dev_err(&u132->platform_dev->dev,
- "CALLBACK called urb=%p unlinked=%d\n",
- urb, urb->unlinked);
- mutex_unlock(&u132->scheduler_lock);
- u132_hcd_giveback_urb(u132, endp, urb, 0);
- return;
- }
-}
-
-/*
-* this work function is only executed from the work queue
-*
-*/
-static void u132_hcd_ring_work_scheduler(struct work_struct *work)
-{
- struct u132_ring *ring =
- container_of(work, struct u132_ring, scheduler.work);
- struct u132 *u132 = ring->u132;
- mutex_lock(&u132->scheduler_lock);
- if (ring->in_use) {
- mutex_unlock(&u132->scheduler_lock);
- u132_ring_put_kref(u132, ring);
- return;
- } else if (ring->curr_endp) {
- struct u132_endp *endp, *last_endp = ring->curr_endp;
- unsigned long wakeup = 0;
- list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) {
- if (endp->queue_next == endp->queue_last) {
- } else if ((endp->delayed == 0)
- || time_after_eq(jiffies, endp->jiffies)) {
- ring->curr_endp = endp;
- u132_endp_cancel_work(u132, last_endp);
- u132_endp_queue_work(u132, last_endp, 0);
- mutex_unlock(&u132->scheduler_lock);
- u132_ring_put_kref(u132, ring);
- return;
- } else {
- unsigned long delta = endp->jiffies - jiffies;
- if (delta > wakeup)
- wakeup = delta;
- }
- }
- if (last_endp->queue_next == last_endp->queue_last) {
- } else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
- last_endp->jiffies)) {
- u132_endp_cancel_work(u132, last_endp);
- u132_endp_queue_work(u132, last_endp, 0);
- mutex_unlock(&u132->scheduler_lock);
- u132_ring_put_kref(u132, ring);
- return;
- } else {
- unsigned long delta = last_endp->jiffies - jiffies;
- if (delta > wakeup)
- wakeup = delta;
- }
- if (wakeup > 0) {
- u132_ring_requeue_work(u132, ring, wakeup);
- mutex_unlock(&u132->scheduler_lock);
- return;
- } else {
- mutex_unlock(&u132->scheduler_lock);
- u132_ring_put_kref(u132, ring);
- return;
- }
- } else {
- mutex_unlock(&u132->scheduler_lock);
- u132_ring_put_kref(u132, ring);
- return;
- }
-}
-
-static void u132_hcd_endp_work_scheduler(struct work_struct *work)
-{
- struct u132_ring *ring;
- struct u132_endp *endp =
- container_of(work, struct u132_endp, scheduler.work);
- struct u132 *u132 = endp->u132;
- mutex_lock(&u132->scheduler_lock);
- ring = endp->ring;
- if (endp->edset_flush) {
- endp->edset_flush = 0;
- if (endp->dequeueing)
- usb_ftdi_elan_edset_flush(u132->platform_dev,
- ring->number, endp);
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else if (endp->active) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else if (ring->in_use) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else if (endp->queue_next == endp->queue_last) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else if (endp->pipetype == PIPE_INTERRUPT) {
- u8 address = u132->addr[endp->usb_addr].address;
- if (ring->in_use) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else {
- int retval;
- struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
- endp->queue_next];
- endp->active = 1;
- ring->curr_endp = endp;
- ring->in_use = 1;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_single(u132, ring, endp, urb, address,
- endp->toggle_bits, u132_hcd_interrupt_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- }
- } else if (endp->pipetype == PIPE_CONTROL) {
- u8 address = u132->addr[endp->usb_addr].address;
- if (ring->in_use) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else if (address == 0) {
- int retval;
- struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
- endp->queue_next];
- endp->active = 1;
- ring->curr_endp = endp;
- ring->in_use = 1;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_setup(u132, ring, endp, urb, address,
- 0x2, u132_hcd_initial_setup_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else if (endp->usb_addr == 0) {
- int retval;
- struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
- endp->queue_next];
- endp->active = 1;
- ring->curr_endp = endp;
- ring->in_use = 1;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
- u132_hcd_enumeration_address_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- } else {
- int retval;
- struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
- endp->queue_next];
- address = u132->addr[endp->usb_addr].address;
- endp->active = 1;
- ring->curr_endp = endp;
- ring->in_use = 1;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_setup(u132, ring, endp, urb, address,
- 0x2, u132_hcd_configure_setup_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb, retval);
- return;
- }
- } else {
- if (endp->input) {
- u8 address = u132->addr[endp->usb_addr].address;
- if (ring->in_use) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else {
- int retval;
- struct urb *urb = endp->urb_list[
- ENDP_QUEUE_MASK & endp->queue_next];
- endp->active = 1;
- ring->curr_endp = endp;
- ring->in_use = 1;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_input(u132, ring, endp, urb,
- address, endp->toggle_bits,
- u132_hcd_bulk_input_recv);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb,
- retval);
- return;
- }
- } else { /* output pipe */
- u8 address = u132->addr[endp->usb_addr].address;
- if (ring->in_use) {
- mutex_unlock(&u132->scheduler_lock);
- u132_endp_put_kref(u132, endp);
- return;
- } else {
- int retval;
- struct urb *urb = endp->urb_list[
- ENDP_QUEUE_MASK & endp->queue_next];
- endp->active = 1;
- ring->curr_endp = endp;
- ring->in_use = 1;
- mutex_unlock(&u132->scheduler_lock);
- retval = edset_output(u132, ring, endp, urb,
- address, endp->toggle_bits,
- u132_hcd_bulk_output_sent);
- if (retval != 0)
- u132_hcd_giveback_urb(u132, endp, urb,
- retval);
- return;
- }
- }
- }
-}
-#ifdef CONFIG_PM
-
-static void port_power(struct u132 *u132, int pn, int is_on)
-{
- u132->port[pn].power = is_on;
-}
-
-#endif
-
-static void u132_power(struct u132 *u132, int is_on)
-{
- struct usb_hcd *hcd = u132_to_hcd(u132)
- ; /* hub is inactive unless the port is powered */
- if (is_on) {
- if (u132->power)
- return;
- u132->power = 1;
- } else {
- u132->power = 0;
- hcd->state = HC_STATE_HALT;
- }
-}
-
-static int u132_periodic_reinit(struct u132 *u132)
-{
- int retval;
- u32 fi = u132->hc_fminterval & 0x03fff;
- u32 fit;
- u32 fminterval;
- retval = u132_read_pcimem(u132, fminterval, &fminterval);
- if (retval)
- return retval;
- fit = fminterval & FIT;
- retval = u132_write_pcimem(u132, fminterval,
- (fit ^ FIT) | u132->hc_fminterval);
- if (retval)
- return retval;
- return u132_write_pcimem(u132, periodicstart,
- ((9 * fi) / 10) & 0x3fff);
-}
-
-static char *hcfs2string(int state)
-{
- switch (state) {
- case OHCI_USB_RESET:
- return "reset";
- case OHCI_USB_RESUME:
- return "resume";
- case OHCI_USB_OPER:
- return "operational";
- case OHCI_USB_SUSPEND:
- return "suspend";
- }
- return "?";
-}
-
-static int u132_init(struct u132 *u132)
-{
- int retval;
- u32 control;
- u132_disable(u132);
- u132->next_statechange = jiffies;
- retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, control, &control);
- if (retval)
- return retval;
- if (u132->num_ports == 0) {
- u32 rh_a = -1;
- retval = u132_read_pcimem(u132, roothub.a, &rh_a);
- if (retval)
- return retval;
- u132->num_ports = rh_a & RH_A_NDP;
- retval = read_roothub_info(u132);
- if (retval)
- return retval;
- }
- if (u132->num_ports > MAX_U132_PORTS)
- return -EINVAL;
-
- return 0;
-}
-
-
-/* Start an OHCI controller, set the BUS operational
-* resets USB and controller
-* enable interrupts
-*/
-static int u132_run(struct u132 *u132)
-{
- int retval;
- u32 control;
- u32 status;
- u32 fminterval;
- u32 periodicstart;
- u32 cmdstatus;
- u32 roothub_a;
- int mask = OHCI_INTR_INIT;
- int first = u132->hc_fminterval == 0;
- int sleep_time = 0;
- int reset_timeout = 30; /* ... allow extra time */
- u132_disable(u132);
- if (first) {
- u32 temp;
- retval = u132_read_pcimem(u132, fminterval, &temp);
- if (retval)
- return retval;
- u132->hc_fminterval = temp & 0x3fff;
- u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
- }
- retval = u132_read_pcimem(u132, control, &u132->hc_control);
- if (retval)
- return retval;
- dev_info(&u132->platform_dev->dev,
- "resetting from state '%s', control = %08X\n",
- hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
- u132->hc_control);
- switch (u132->hc_control & OHCI_CTRL_HCFS) {
- case OHCI_USB_OPER:
- sleep_time = 0;
- break;
- case OHCI_USB_SUSPEND:
- case OHCI_USB_RESUME:
- u132->hc_control &= OHCI_CTRL_RWC;
- u132->hc_control |= OHCI_USB_RESUME;
- sleep_time = 10;
- break;
- default:
- u132->hc_control &= OHCI_CTRL_RWC;
- u132->hc_control |= OHCI_USB_RESET;
- sleep_time = 50;
- break;
- }
- retval = u132_write_pcimem(u132, control, u132->hc_control);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, control, &control);
- if (retval)
- return retval;
- msleep(sleep_time);
- retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
- if (retval)
- return retval;
- if (!(roothub_a & RH_A_NPS)) {
- int temp; /* power down each port */
- for (temp = 0; temp < u132->num_ports; temp++) {
- retval = u132_write_pcimem(u132,
- roothub.portstatus[temp], RH_PS_LSDA);
- if (retval)
- return retval;
- }
- }
- retval = u132_read_pcimem(u132, control, &control);
- if (retval)
- return retval;
-retry:
- retval = u132_read_pcimem(u132, cmdstatus, &status);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
- if (retval)
- return retval;
-extra: {
- retval = u132_read_pcimem(u132, cmdstatus, &status);
- if (retval)
- return retval;
- if (0 != (status & OHCI_HCR)) {
- if (--reset_timeout == 0) {
- dev_err(&u132->platform_dev->dev,
- "USB HC reset timed out!\n");
- return -ENODEV;
- } else {
- msleep(5);
- goto extra;
- }
- }
- }
- if (u132->flags & OHCI_QUIRK_INITRESET) {
- retval = u132_write_pcimem(u132, control, u132->hc_control);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, control, &control);
- if (retval)
- return retval;
- }
- retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, hcca, 0x00000000);
- if (retval)
- return retval;
- retval = u132_periodic_reinit(u132);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, fminterval, &fminterval);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
- if (retval)
- return retval;
- if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
- if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
- u132->flags |= OHCI_QUIRK_INITRESET;
- goto retry;
- } else {
- dev_err(&u132->platform_dev->dev,
- "init err(%08x %04x)\n",
- fminterval, periodicstart);
- }
- } /* start controller operations */
- u132->hc_control &= OHCI_CTRL_RWC;
- u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
- retval = u132_write_pcimem(u132, control, u132->hc_control);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, control, &control);
- if (retval)
- return retval;
- u132_to_hcd(u132)->state = HC_STATE_RUNNING;
- retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, intrstatus, mask);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, intrdisable,
- OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
- OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
- OHCI_INTR_SO);
- if (retval)
- return retval; /* handle root hub init quirks ... */
- retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
- if (retval)
- return retval;
- roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
- if (u132->flags & OHCI_QUIRK_SUPERIO) {
- roothub_a |= RH_A_NOCP;
- roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
- retval = u132_write_pcimem(u132, roothub.a, roothub_a);
- if (retval)
- return retval;
- } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
- roothub_a |= RH_A_NPS;
- retval = u132_write_pcimem(u132, roothub.a, roothub_a);
- if (retval)
- return retval;
- }
- retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
- if (retval)
- return retval;
- retval = u132_write_pcimem(u132, roothub.b,
- (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
- if (retval)
- return retval;
- retval = u132_read_pcimem(u132, control, &control);
- if (retval)
- return retval;
- mdelay((roothub_a >> 23) & 0x1fe);
- u132_to_hcd(u132)->state = HC_STATE_RUNNING;
- return 0;
-}
-
-static void u132_hcd_stop(struct usb_hcd *hcd)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "u132 device %p(hcd=%p) has been removed %d\n",
- u132, hcd, u132->going);
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device hcd=%p is being removed\n", hcd);
- } else {
- mutex_lock(&u132->sw_lock);
- msleep(100);
- u132_power(u132, 0);
- mutex_unlock(&u132->sw_lock);
- }
-}
-
-static int u132_hcd_start(struct usb_hcd *hcd)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else if (hcd->self.controller) {
- int retval;
- struct platform_device *pdev =
- to_platform_device(hcd->self.controller);
- u16 vendor = ((struct u132_platform_data *)
- dev_get_platdata(&pdev->dev))->vendor;
- u16 device = ((struct u132_platform_data *)
- dev_get_platdata(&pdev->dev))->device;
- mutex_lock(&u132->sw_lock);
- msleep(10);
- if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
- u132->flags = OHCI_QUIRK_AMD756;
- } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
- dev_err(&u132->platform_dev->dev,
- "WARNING: OPTi workarounds unavailable\n");
- } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
- u132->flags |= OHCI_QUIRK_ZFMICRO;
- retval = u132_run(u132);
- if (retval) {
- u132_disable(u132);
- u132->going = 1;
- }
- msleep(100);
- mutex_unlock(&u132->sw_lock);
- return retval;
- } else {
- dev_err(&u132->platform_dev->dev, "platform_device missing\n");
- return -ENODEV;
- }
-}
-
-static int u132_hcd_reset(struct usb_hcd *hcd)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- int retval;
- mutex_lock(&u132->sw_lock);
- retval = u132_init(u132);
- if (retval) {
- u132_disable(u132);
- u132->going = 1;
- }
- mutex_unlock(&u132->sw_lock);
- return retval;
- }
-}
-
-static int create_endpoint_and_queue_int(struct u132 *u132,
- struct u132_udev *udev, struct urb *urb,
- struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
- gfp_t mem_flags)
-{
- struct u132_ring *ring;
- unsigned long irqs;
- int rc;
- u8 endp_number;
- struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
-
- if (!endp)
- return -ENOMEM;
-
- spin_lock_init(&endp->queue_lock.slock);
- spin_lock_irqsave(&endp->queue_lock.slock, irqs);
- rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
- if (rc) {
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- kfree(endp);
- return rc;
- }
-
- endp_number = ++u132->num_endpoints;
- urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
- INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
- INIT_LIST_HEAD(&endp->urb_more);
- ring = endp->ring = &u132->ring[0];
- if (ring->curr_endp) {
- list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
- } else {
- INIT_LIST_HEAD(&endp->endp_ring);
- ring->curr_endp = endp;
- }
- ring->length += 1;
- endp->dequeueing = 0;
- endp->edset_flush = 0;
- endp->active = 0;
- endp->delayed = 0;
- endp->endp_number = endp_number;
- endp->u132 = u132;
- endp->hep = urb->ep;
- endp->pipetype = usb_pipetype(urb->pipe);
- u132_endp_init_kref(u132, endp);
- if (usb_pipein(urb->pipe)) {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, usb_endp, 0, 0);
- endp->input = 1;
- endp->output = 0;
- udev->endp_number_in[usb_endp] = endp_number;
- u132_udev_get_kref(u132, udev);
- } else {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, usb_endp, 1, 0);
- endp->input = 0;
- endp->output = 1;
- udev->endp_number_out[usb_endp] = endp_number;
- u132_udev_get_kref(u132, udev);
- }
- urb->hcpriv = u132;
- endp->delayed = 1;
- endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
- endp->udev_number = address;
- endp->usb_addr = usb_addr;
- endp->usb_endp = usb_endp;
- endp->queue_size = 1;
- endp->queue_last = 0;
- endp->queue_next = 0;
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
- return 0;
-}
-
-static int queue_int_on_old_endpoint(struct u132 *u132,
- struct u132_udev *udev, struct urb *urb,
- struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
- u8 usb_endp, u8 address)
-{
- urb->hcpriv = u132;
- endp->delayed = 1;
- endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
- if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
- } else {
- struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
- GFP_ATOMIC);
- if (urbq == NULL) {
- endp->queue_size -= 1;
- return -ENOMEM;
- } else {
- list_add_tail(&urbq->urb_more, &endp->urb_more);
- urbq->urb = urb;
- }
- }
- return 0;
-}
-
-static int create_endpoint_and_queue_bulk(struct u132 *u132,
- struct u132_udev *udev, struct urb *urb,
- struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
- gfp_t mem_flags)
-{
- int ring_number;
- struct u132_ring *ring;
- unsigned long irqs;
- int rc;
- u8 endp_number;
- struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
-
- if (!endp)
- return -ENOMEM;
-
- spin_lock_init(&endp->queue_lock.slock);
- spin_lock_irqsave(&endp->queue_lock.slock, irqs);
- rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
- if (rc) {
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- kfree(endp);
- return rc;
- }
-
- endp_number = ++u132->num_endpoints;
- urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
- INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
- INIT_LIST_HEAD(&endp->urb_more);
- endp->dequeueing = 0;
- endp->edset_flush = 0;
- endp->active = 0;
- endp->delayed = 0;
- endp->endp_number = endp_number;
- endp->u132 = u132;
- endp->hep = urb->ep;
- endp->pipetype = usb_pipetype(urb->pipe);
- u132_endp_init_kref(u132, endp);
- if (usb_pipein(urb->pipe)) {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, usb_endp, 0, 0);
- ring_number = 3;
- endp->input = 1;
- endp->output = 0;
- udev->endp_number_in[usb_endp] = endp_number;
- u132_udev_get_kref(u132, udev);
- } else {
- endp->toggle_bits = 0x2;
- usb_settoggle(udev->usb_device, usb_endp, 1, 0);
- ring_number = 2;
- endp->input = 0;
- endp->output = 1;
- udev->endp_number_out[usb_endp] = endp_number;
- u132_udev_get_kref(u132, udev);
- }
- ring = endp->ring = &u132->ring[ring_number - 1];
- if (ring->curr_endp) {
- list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
- } else {
- INIT_LIST_HEAD(&endp->endp_ring);
- ring->curr_endp = endp;
- }
- ring->length += 1;
- urb->hcpriv = u132;
- endp->udev_number = address;
- endp->usb_addr = usb_addr;
- endp->usb_endp = usb_endp;
- endp->queue_size = 1;
- endp->queue_last = 0;
- endp->queue_next = 0;
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- u132_endp_queue_work(u132, endp, 0);
- return 0;
-}
-
-static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
- struct urb *urb,
- struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
- u8 usb_endp, u8 address)
-{
- urb->hcpriv = u132;
- if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
- } else {
- struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
- GFP_ATOMIC);
- if (urbq == NULL) {
- endp->queue_size -= 1;
- return -ENOMEM;
- } else {
- list_add_tail(&urbq->urb_more, &endp->urb_more);
- urbq->urb = urb;
- }
- }
- return 0;
-}
-
-static int create_endpoint_and_queue_control(struct u132 *u132,
- struct urb *urb,
- struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
- gfp_t mem_flags)
-{
- struct u132_ring *ring;
- unsigned long irqs;
- int rc;
- u8 endp_number;
- struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
-
- if (!endp)
- return -ENOMEM;
-
- spin_lock_init(&endp->queue_lock.slock);
- spin_lock_irqsave(&endp->queue_lock.slock, irqs);
- rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
- if (rc) {
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- kfree(endp);
- return rc;
- }
-
- endp_number = ++u132->num_endpoints;
- urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
- INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
- INIT_LIST_HEAD(&endp->urb_more);
- ring = endp->ring = &u132->ring[0];
- if (ring->curr_endp) {
- list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
- } else {
- INIT_LIST_HEAD(&endp->endp_ring);
- ring->curr_endp = endp;
- }
- ring->length += 1;
- endp->dequeueing = 0;
- endp->edset_flush = 0;
- endp->active = 0;
- endp->delayed = 0;
- endp->endp_number = endp_number;
- endp->u132 = u132;
- endp->hep = urb->ep;
- u132_endp_init_kref(u132, endp);
- u132_endp_get_kref(u132, endp);
- if (usb_addr == 0) {
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- endp->udev_number = address;
- endp->usb_addr = usb_addr;
- endp->usb_endp = usb_endp;
- endp->input = 1;
- endp->output = 1;
- endp->pipetype = usb_pipetype(urb->pipe);
- u132_udev_init_kref(u132, udev);
- u132_udev_get_kref(u132, udev);
- udev->endp_number_in[usb_endp] = endp_number;
- udev->endp_number_out[usb_endp] = endp_number;
- urb->hcpriv = u132;
- endp->queue_size = 1;
- endp->queue_last = 0;
- endp->queue_next = 0;
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- u132_endp_queue_work(u132, endp, 0);
- return 0;
- } else { /*(usb_addr > 0) */
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- endp->udev_number = address;
- endp->usb_addr = usb_addr;
- endp->usb_endp = usb_endp;
- endp->input = 1;
- endp->output = 1;
- endp->pipetype = usb_pipetype(urb->pipe);
- u132_udev_get_kref(u132, udev);
- udev->enumeration = 2;
- udev->endp_number_in[usb_endp] = endp_number;
- udev->endp_number_out[usb_endp] = endp_number;
- urb->hcpriv = u132;
- endp->queue_size = 1;
- endp->queue_last = 0;
- endp->queue_next = 0;
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- u132_endp_queue_work(u132, endp, 0);
- return 0;
- }
-}
-
-static int queue_control_on_old_endpoint(struct u132 *u132,
- struct urb *urb,
- struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
- u8 usb_endp)
-{
- if (usb_addr == 0) {
- if (usb_pipein(urb->pipe)) {
- urb->hcpriv = u132;
- if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
- endp->urb_list[ENDP_QUEUE_MASK &
- endp->queue_last++] = urb;
- } else {
- struct u132_urbq *urbq =
- kmalloc(sizeof(struct u132_urbq),
- GFP_ATOMIC);
- if (urbq == NULL) {
- endp->queue_size -= 1;
- return -ENOMEM;
- } else {
- list_add_tail(&urbq->urb_more,
- &endp->urb_more);
- urbq->urb = urb;
- }
- }
- return 0;
- } else { /* usb_pipeout(urb->pipe) */
- struct u132_addr *addr = &u132->addr[usb_dev->devnum];
- int I = MAX_U132_UDEVS;
- int i = 0;
- while (--I > 0) {
- struct u132_udev *udev = &u132->udev[++i];
- if (udev->usb_device) {
- continue;
- } else {
- udev->enumeration = 1;
- u132->addr[0].address = i;
- endp->udev_number = i;
- udev->udev_number = i;
- udev->usb_addr = usb_dev->devnum;
- u132_udev_init_kref(u132, udev);
- udev->endp_number_in[usb_endp] =
- endp->endp_number;
- u132_udev_get_kref(u132, udev);
- udev->endp_number_out[usb_endp] =
- endp->endp_number;
- udev->usb_device = usb_dev;
- ((u8 *) (urb->setup_packet))[2] =
- addr->address = i;
- u132_udev_get_kref(u132, udev);
- break;
- }
- }
- if (I == 0) {
- dev_err(&u132->platform_dev->dev,
- "run out of device space\n");
- return -EINVAL;
- }
- urb->hcpriv = u132;
- if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
- endp->urb_list[ENDP_QUEUE_MASK &
- endp->queue_last++] = urb;
- } else {
- struct u132_urbq *urbq =
- kmalloc(sizeof(struct u132_urbq),
- GFP_ATOMIC);
- if (urbq == NULL) {
- endp->queue_size -= 1;
- return -ENOMEM;
- } else {
- list_add_tail(&urbq->urb_more,
- &endp->urb_more);
- urbq->urb = urb;
- }
- }
- return 0;
- }
- } else { /*(usb_addr > 0) */
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- urb->hcpriv = u132;
- if (udev->enumeration != 2)
- udev->enumeration = 2;
- if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
- endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
- urb;
- } else {
- struct u132_urbq *urbq =
- kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
- if (urbq == NULL) {
- endp->queue_size -= 1;
- return -ENOMEM;
- } else {
- list_add_tail(&urbq->urb_more, &endp->urb_more);
- urbq->urb = urb;
- }
- }
- return 0;
- }
-}
-
-static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
- gfp_t mem_flags)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (irqs_disabled()) {
- if (gfpflags_allow_blocking(mem_flags)) {
- printk(KERN_ERR "invalid context for function that might sleep\n");
- return -EINVAL;
- }
- }
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device is being removed urb=%p\n", urb);
- return -ESHUTDOWN;
- } else {
- u8 usb_addr = usb_pipedevice(urb->pipe);
- u8 usb_endp = usb_pipeendpoint(urb->pipe);
- struct usb_device *usb_dev = urb->dev;
- if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- struct u132_endp *endp = urb->ep->hcpriv;
- urb->actual_length = 0;
- if (endp) {
- unsigned long irqs;
- int retval;
- spin_lock_irqsave(&endp->queue_lock.slock,
- irqs);
- retval = usb_hcd_link_urb_to_ep(hcd, urb);
- if (retval == 0) {
- retval = queue_int_on_old_endpoint(
- u132, udev, urb,
- usb_dev, endp,
- usb_addr, usb_endp,
- address);
- if (retval)
- usb_hcd_unlink_urb_from_ep(
- hcd, urb);
- }
- spin_unlock_irqrestore(&endp->queue_lock.slock,
- irqs);
- if (retval) {
- return retval;
- } else {
- u132_endp_queue_work(u132, endp,
- msecs_to_jiffies(urb->interval))
- ;
- return 0;
- }
- } else if (u132->num_endpoints == MAX_U132_ENDPS) {
- return -EINVAL;
- } else { /*(endp == NULL) */
- return create_endpoint_and_queue_int(u132, udev,
- urb, usb_dev, usb_addr,
- usb_endp, address, mem_flags);
- }
- } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
- dev_err(&u132->platform_dev->dev,
- "the hardware does not support PIPE_ISOCHRONOUS\n");
- return -EINVAL;
- } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- struct u132_endp *endp = urb->ep->hcpriv;
- urb->actual_length = 0;
- if (endp) {
- unsigned long irqs;
- int retval;
- spin_lock_irqsave(&endp->queue_lock.slock,
- irqs);
- retval = usb_hcd_link_urb_to_ep(hcd, urb);
- if (retval == 0) {
- retval = queue_bulk_on_old_endpoint(
- u132, udev, urb,
- usb_dev, endp,
- usb_addr, usb_endp,
- address);
- if (retval)
- usb_hcd_unlink_urb_from_ep(
- hcd, urb);
- }
- spin_unlock_irqrestore(&endp->queue_lock.slock,
- irqs);
- if (retval) {
- return retval;
- } else {
- u132_endp_queue_work(u132, endp, 0);
- return 0;
- }
- } else if (u132->num_endpoints == MAX_U132_ENDPS) {
- return -EINVAL;
- } else {
- return create_endpoint_and_queue_bulk(u132,
- udev, urb, usb_dev, usb_addr,
- usb_endp, address, mem_flags);
- }
- } else {
- struct u132_endp *endp = urb->ep->hcpriv;
- u16 urb_size = 8;
- u8 *b = urb->setup_packet;
- int i = 0;
- char data[30 * 3 + 4];
- char *d = data;
- int m = (sizeof(data) - 1) / 3;
- int l = 0;
- data[0] = 0;
- while (urb_size-- > 0) {
- if (i > m) {
- } else if (i++ < m) {
- int w = sprintf(d, " %02X", *b++);
- d += w;
- l += w;
- } else {
- d += sprintf(d, " ..");
- }
- }
- if (endp) {
- unsigned long irqs;
- int retval;
- spin_lock_irqsave(&endp->queue_lock.slock,
- irqs);
- retval = usb_hcd_link_urb_to_ep(hcd, urb);
- if (retval == 0) {
- retval = queue_control_on_old_endpoint(
- u132, urb, usb_dev,
- endp, usb_addr,
- usb_endp);
- if (retval)
- usb_hcd_unlink_urb_from_ep(
- hcd, urb);
- }
- spin_unlock_irqrestore(&endp->queue_lock.slock,
- irqs);
- if (retval) {
- return retval;
- } else {
- u132_endp_queue_work(u132, endp, 0);
- return 0;
- }
- } else if (u132->num_endpoints == MAX_U132_ENDPS) {
- return -EINVAL;
- } else {
- return create_endpoint_and_queue_control(u132,
- urb, usb_dev, usb_addr, usb_endp,
- mem_flags);
- }
- }
- }
-}
-
-static int dequeue_from_overflow_chain(struct u132 *u132,
- struct u132_endp *endp, struct urb *urb)
-{
- struct u132_urbq *urbq;
-
- list_for_each_entry(urbq, &endp->urb_more, urb_more) {
- if (urbq->urb == urb) {
- struct usb_hcd *hcd = u132_to_hcd(u132);
- list_del(&urbq->urb_more);
- endp->queue_size -= 1;
- urb->error_count = 0;
- usb_hcd_giveback_urb(hcd, urb, 0);
- return 0;
- }
- }
- dev_err(&u132->platform_dev->dev,
- "urb=%p not found in endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X\n",
- urb, endp->endp_number, endp, endp->ring->number,
- endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
- endp->usb_endp, endp->usb_addr, endp->queue_size,
- endp->queue_next, endp->queue_last);
- return -EINVAL;
-}
-
-static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
- struct urb *urb, int status)
-{
- unsigned long irqs;
- int rc;
-
- spin_lock_irqsave(&endp->queue_lock.slock, irqs);
- rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status);
- if (rc) {
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- return rc;
- }
- if (endp->queue_size == 0) {
- dev_err(&u132->platform_dev->dev,
- "urb=%p not found in endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n",
- urb, endp->endp_number, endp, endp->ring->number,
- endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
- endp->usb_endp, endp->usb_addr);
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- return -EINVAL;
- }
- if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
- if (endp->active) {
- endp->dequeueing = 1;
- endp->edset_flush = 1;
- u132_endp_queue_work(u132, endp, 0);
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- return 0;
- } else {
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- u132_hcd_abandon_urb(u132, endp, urb, status);
- return 0;
- }
- } else {
- u16 queue_list = 0;
- u16 queue_size = endp->queue_size;
- u16 queue_scan = endp->queue_next;
- struct urb **urb_slot = NULL;
- while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
- if (urb == endp->urb_list[ENDP_QUEUE_MASK &
- ++queue_scan]) {
- urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
- queue_scan];
- break;
- }
- }
- while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
- *urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
- ++queue_scan];
- urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
- queue_scan];
- }
- if (urb_slot) {
- struct usb_hcd *hcd = u132_to_hcd(u132);
-
- usb_hcd_unlink_urb_from_ep(hcd, urb);
- endp->queue_size -= 1;
- if (list_empty(&endp->urb_more)) {
- spin_unlock_irqrestore(&endp->queue_lock.slock,
- irqs);
- } else {
- struct list_head *next = endp->urb_more.next;
- struct u132_urbq *urbq = list_entry(next,
- struct u132_urbq, urb_more);
- list_del(next);
- *urb_slot = urbq->urb;
- spin_unlock_irqrestore(&endp->queue_lock.slock,
- irqs);
- kfree(urbq);
- }
- urb->error_count = 0;
- usb_hcd_giveback_urb(hcd, urb, status);
- return 0;
- } else if (list_empty(&endp->urb_more)) {
- dev_err(&u132->platform_dev->dev,
- "urb=%p not found in endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X\n",
- urb, endp->endp_number, endp, endp->ring->number,
- endp->input ? 'I' : ' ',
- endp->output ? 'O' : ' ', endp->usb_endp,
- endp->usb_addr, endp->queue_size,
- endp->queue_next, endp->queue_last);
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- return -EINVAL;
- } else {
- int retval;
-
- usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb);
- retval = dequeue_from_overflow_chain(u132, endp,
- urb);
- spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
- return retval;
- }
- }
-}
-
-static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 2) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else {
- u8 usb_addr = usb_pipedevice(urb->pipe);
- u8 usb_endp = usb_pipeendpoint(urb->pipe);
- u8 address = u132->addr[usb_addr].address;
- struct u132_udev *udev = &u132->udev[address];
- if (usb_pipein(urb->pipe)) {
- u8 endp_number = udev->endp_number_in[usb_endp];
- struct u132_endp *endp = u132->endp[endp_number - 1];
- return u132_endp_urb_dequeue(u132, endp, urb, status);
- } else {
- u8 endp_number = udev->endp_number_out[usb_endp];
- struct u132_endp *endp = u132->endp[endp_number - 1];
- return u132_endp_urb_dequeue(u132, endp, urb, status);
- }
- }
-}
-
-static void u132_endpoint_disable(struct usb_hcd *hcd,
- struct usb_host_endpoint *hep)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 2) {
- dev_err(&u132->platform_dev->dev,
- "u132 device %p(hcd=%p hep=%p) has been removed %d\n",
- u132, hcd, hep, u132->going);
- } else {
- struct u132_endp *endp = hep->hcpriv;
- if (endp)
- u132_endp_put_kref(u132, endp);
- }
-}
-
-static int u132_get_frame(struct usb_hcd *hcd)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
- mdelay(100);
- return 0;
- }
-}
-
-static int u132_roothub_descriptor(struct u132 *u132,
- struct usb_hub_descriptor *desc)
-{
- int retval;
- u16 temp;
- u32 rh_a = -1;
- u32 rh_b = -1;
- retval = u132_read_pcimem(u132, roothub.a, &rh_a);
- if (retval)
- return retval;
- desc->bDescriptorType = USB_DT_HUB;
- desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
- desc->bHubContrCurrent = 0;
- desc->bNbrPorts = u132->num_ports;
- temp = 1 + (u132->num_ports / 8);
- desc->bDescLength = 7 + 2 * temp;
- temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM;
- if (rh_a & RH_A_NPS)
- temp |= HUB_CHAR_NO_LPSM;
- if (rh_a & RH_A_PSM)
- temp |= HUB_CHAR_INDV_PORT_LPSM;
- if (rh_a & RH_A_NOCP)
- temp |= HUB_CHAR_NO_OCPM;
- else if (rh_a & RH_A_OCPM)
- temp |= HUB_CHAR_INDV_PORT_OCPM;
- desc->wHubCharacteristics = cpu_to_le16(temp);
- retval = u132_read_pcimem(u132, roothub.b, &rh_b);
- if (retval)
- return retval;
- memset(desc->u.hs.DeviceRemovable, 0xff,
- sizeof(desc->u.hs.DeviceRemovable));
- desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR;
- if (u132->num_ports > 7) {
- desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8;
- desc->u.hs.DeviceRemovable[2] = 0xff;
- } else {
- desc->u.hs.DeviceRemovable[1] = 0xff;
- }
- return 0;
-}
-
-static int u132_roothub_status(struct u132 *u132, __le32 *desc)
-{
- u32 rh_status = -1;
- int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
- *desc = cpu_to_le32(rh_status);
- return ret_status;
-}
-
-static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
-{
- if (wIndex == 0 || wIndex > u132->num_ports) {
- return -EINVAL;
- } else {
- int port = wIndex - 1;
- u32 rh_portstatus = -1;
- int ret_portstatus = u132_read_pcimem(u132,
- roothub.portstatus[port], &rh_portstatus);
- *desc = cpu_to_le32(rh_portstatus);
- if (*(u16 *) (desc + 2)) {
- dev_info(&u132->platform_dev->dev,
- "Port %d Status Change = %08X\n", port, *desc);
- }
- return ret_portstatus;
- }
-}
-
-
-/* this timer value might be vendor-specific ... */
-#define PORT_RESET_HW_MSEC 10
-#define PORT_RESET_MSEC 10
-/* wrap-aware logic morphed from <linux/jiffies.h> */
-#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
-static int u132_roothub_portreset(struct u132 *u132, int port_index)
-{
- int retval;
- u32 fmnumber;
- u16 now;
- u16 reset_done;
- retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
- if (retval)
- return retval;
- now = fmnumber;
- reset_done = now + PORT_RESET_MSEC;
- do {
- u32 portstat;
- do {
- retval = u132_read_pcimem(u132,
- roothub.portstatus[port_index], &portstat);
- if (retval)
- return retval;
- if (RH_PS_PRS & portstat)
- continue;
- else
- break;
- } while (tick_before(now, reset_done));
- if (RH_PS_PRS & portstat)
- return -ENODEV;
- if (RH_PS_CCS & portstat) {
- if (RH_PS_PRSC & portstat) {
- retval = u132_write_pcimem(u132,
- roothub.portstatus[port_index],
- RH_PS_PRSC);
- if (retval)
- return retval;
- }
- } else {
- break; /* start the next reset,
- sleep till it's probably done */
- }
- retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
- RH_PS_PRS);
- if (retval)
- return retval;
- msleep(PORT_RESET_HW_MSEC);
- retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
- if (retval)
- return retval;
- now = fmnumber;
- } while (tick_before(now, reset_done));
- return 0;
-}
-
-static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
- u16 wIndex)
-{
- if (wIndex == 0 || wIndex > u132->num_ports) {
- return -EINVAL;
- } else {
- int port_index = wIndex - 1;
- struct u132_port *port = &u132->port[port_index];
- port->Status &= ~(1 << wValue);
- switch (wValue) {
- case USB_PORT_FEAT_SUSPEND:
- return u132_write_pcimem(u132,
- roothub.portstatus[port_index], RH_PS_PSS);
- case USB_PORT_FEAT_POWER:
- return u132_write_pcimem(u132,
- roothub.portstatus[port_index], RH_PS_PPS);
- case USB_PORT_FEAT_RESET:
- return u132_roothub_portreset(u132, port_index);
- default:
- return -EPIPE;
- }
- }
-}
-
-static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
- u16 wIndex)
-{
- if (wIndex == 0 || wIndex > u132->num_ports) {
- return -EINVAL;
- } else {
- int port_index = wIndex - 1;
- u32 temp;
- struct u132_port *port = &u132->port[port_index];
- port->Status &= ~(1 << wValue);
- switch (wValue) {
- case USB_PORT_FEAT_ENABLE:
- temp = RH_PS_CCS;
- break;
- case USB_PORT_FEAT_C_ENABLE:
- temp = RH_PS_PESC;
- break;
- case USB_PORT_FEAT_SUSPEND:
- temp = RH_PS_POCI;
- if ((u132->hc_control & OHCI_CTRL_HCFS)
- != OHCI_USB_OPER) {
- dev_err(&u132->platform_dev->dev,
- "TODO resume_root_hub\n");
- }
- break;
- case USB_PORT_FEAT_C_SUSPEND:
- temp = RH_PS_PSSC;
- break;
- case USB_PORT_FEAT_POWER:
- temp = RH_PS_LSDA;
- break;
- case USB_PORT_FEAT_C_CONNECTION:
- temp = RH_PS_CSC;
- break;
- case USB_PORT_FEAT_C_OVER_CURRENT:
- temp = RH_PS_OCIC;
- break;
- case USB_PORT_FEAT_C_RESET:
- temp = RH_PS_PRSC;
- break;
- default:
- return -EPIPE;
- }
- return u132_write_pcimem(u132, roothub.portstatus[port_index],
- temp);
- }
-}
-
-
-/* the virtual root hub timer IRQ checks for hub status*/
-static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device hcd=%p has been removed %d\n",
- hcd, u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev,
- "device hcd=%p is being removed\n", hcd);
- return -ESHUTDOWN;
- } else {
- int i, changed = 0, length = 1;
- if (u132->flags & OHCI_QUIRK_AMD756) {
- if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
- dev_err(&u132->platform_dev->dev,
- "bogus NDP, rereads as NDP=%d\n",
- u132->hc_roothub_a & RH_A_NDP);
- goto done;
- }
- }
- if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC))
- buf[0] = changed = 1;
- else
- buf[0] = 0;
- if (u132->num_ports > 7) {
- buf[1] = 0;
- length++;
- }
- for (i = 0; i < u132->num_ports; i++) {
- if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
- RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
- RH_PS_PRSC)) {
- changed = 1;
- if (i < 7)
- buf[0] |= 1 << (i + 1);
- else
- buf[1] |= 1 << (i - 7);
- continue;
- }
- if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS))
- continue;
-
- if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS))
- continue;
- }
-done:
- return changed ? length : 0;
- }
-}
-
-static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
- u16 wIndex, char *buf, u16 wLength)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- int retval = 0;
- mutex_lock(&u132->sw_lock);
- switch (typeReq) {
- case ClearHubFeature:
- switch (wValue) {
- case C_HUB_OVER_CURRENT:
- case C_HUB_LOCAL_POWER:
- break;
- default:
- goto stall;
- }
- break;
- case SetHubFeature:
- switch (wValue) {
- case C_HUB_OVER_CURRENT:
- case C_HUB_LOCAL_POWER:
- break;
- default:
- goto stall;
- }
- break;
- case ClearPortFeature:{
- retval = u132_roothub_clearportfeature(u132,
- wValue, wIndex);
- if (retval)
- goto error;
- break;
- }
- case GetHubDescriptor:{
- retval = u132_roothub_descriptor(u132,
- (struct usb_hub_descriptor *)buf);
- if (retval)
- goto error;
- break;
- }
- case GetHubStatus:{
- retval = u132_roothub_status(u132,
- (__le32 *) buf);
- if (retval)
- goto error;
- break;
- }
- case GetPortStatus:{
- retval = u132_roothub_portstatus(u132,
- (__le32 *) buf, wIndex);
- if (retval)
- goto error;
- break;
- }
- case SetPortFeature:{
- retval = u132_roothub_setportfeature(u132,
- wValue, wIndex);
- if (retval)
- goto error;
- break;
- }
- default:
- goto stall;
- error:
- u132_disable(u132);
- u132->going = 1;
- break;
- stall:
- retval = -EPIPE;
- break;
- }
- mutex_unlock(&u132->sw_lock);
- return retval;
- }
-}
-
-static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- return 0;
- }
-}
-
-
-#ifdef CONFIG_PM
-static int u132_bus_suspend(struct usb_hcd *hcd)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- return 0;
- }
-}
-
-static int u132_bus_resume(struct usb_hcd *hcd)
-{
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- return 0;
- }
-}
-
-#else
-#define u132_bus_suspend NULL
-#define u132_bus_resume NULL
-#endif
-static const struct hc_driver u132_hc_driver = {
- .description = hcd_name,
- .hcd_priv_size = sizeof(struct u132),
- .irq = NULL,
- .flags = HCD_USB11 | HCD_MEMORY,
- .reset = u132_hcd_reset,
- .start = u132_hcd_start,
- .stop = u132_hcd_stop,
- .urb_enqueue = u132_urb_enqueue,
- .urb_dequeue = u132_urb_dequeue,
- .endpoint_disable = u132_endpoint_disable,
- .get_frame_number = u132_get_frame,
- .hub_status_data = u132_hub_status_data,
- .hub_control = u132_hub_control,
- .bus_suspend = u132_bus_suspend,
- .bus_resume = u132_bus_resume,
- .start_port_reset = u132_start_port_reset,
-};
-
-/*
-* This function may be called by the USB core whilst the "usb_all_devices_rwsem"
-* is held for writing, thus this module must not call usb_remove_hcd()
-* synchronously - but instead should immediately stop activity to the
-* device and asynchronously call usb_remove_hcd()
-*/
-static int u132_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
- struct u132 *u132 = hcd_to_u132(hcd);
-
- if (u132->going++ > 1) {
- dev_err(&u132->platform_dev->dev,
- "already being removed\n");
- return -ENODEV;
- } else {
- int rings = MAX_U132_RINGS;
- int endps = MAX_U132_ENDPS;
- dev_err(&u132->platform_dev->dev,
- "removing device u132.%d\n",
- u132->sequence_num);
- msleep(100);
- mutex_lock(&u132->sw_lock);
- u132_monitor_cancel_work(u132);
- while (rings-- > 0) {
- struct u132_ring *ring = &u132->ring[rings];
- u132_ring_cancel_work(u132, ring);
- }
- while (endps-- > 0) {
- struct u132_endp *endp = u132->endp[endps];
- if (endp)
- u132_endp_cancel_work(u132, endp);
- }
- u132->going += 1;
- printk(KERN_INFO "removing device u132.%d\n",
- u132->sequence_num);
- mutex_unlock(&u132->sw_lock);
- usb_remove_hcd(hcd);
- u132_u132_put_kref(u132);
- return 0;
- }
-}
-
-static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
-{
- int rings = MAX_U132_RINGS;
- int ports = MAX_U132_PORTS;
- int addrs = MAX_U132_ADDRS;
- int udevs = MAX_U132_UDEVS;
- int endps = MAX_U132_ENDPS;
- u132->board = dev_get_platdata(&pdev->dev);
- u132->platform_dev = pdev;
- u132->power = 0;
- u132->reset = 0;
- mutex_init(&u132->sw_lock);
- mutex_init(&u132->scheduler_lock);
- while (rings-- > 0) {
- struct u132_ring *ring = &u132->ring[rings];
- ring->u132 = u132;
- ring->number = rings + 1;
- ring->length = 0;
- ring->curr_endp = NULL;
- INIT_DELAYED_WORK(&ring->scheduler,
- u132_hcd_ring_work_scheduler);
- }
- mutex_lock(&u132->sw_lock);
- INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
- while (ports-- > 0) {
- struct u132_port *port = &u132->port[ports];
- port->u132 = u132;
- port->reset = 0;
- port->enable = 0;
- port->power = 0;
- port->Status = 0;
- }
- while (addrs-- > 0) {
- struct u132_addr *addr = &u132->addr[addrs];
- addr->address = 0;
- }
- while (udevs-- > 0) {
- struct u132_udev *udev = &u132->udev[udevs];
- int i = ARRAY_SIZE(udev->endp_number_in);
- int o = ARRAY_SIZE(udev->endp_number_out);
- udev->usb_device = NULL;
- udev->udev_number = 0;
- udev->usb_addr = 0;
- udev->portnumber = 0;
- while (i-- > 0)
- udev->endp_number_in[i] = 0;
-
- while (o-- > 0)
- udev->endp_number_out[o] = 0;
-
- }
- while (endps-- > 0)
- u132->endp[endps] = NULL;
-
- mutex_unlock(&u132->sw_lock);
-}
-
-static int u132_probe(struct platform_device *pdev)
-{
- struct usb_hcd *hcd;
- int retval;
- u32 control;
- u32 rh_a = -1;
-
- msleep(100);
- if (u132_exiting > 0)
- return -ENODEV;
-
- retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
- if (retval)
- return retval;
- retval = ftdi_read_pcimem(pdev, control, &control);
- if (retval)
- return retval;
- retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
- if (retval)
- return retval;
-
- /*
- * Note that after a successful call of usb_create_hcd(),
- * dev_set_drvdata() was called such that platform_get_drvdata(pdev)
- * returns hcd later on.
- */
- hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev));
- if (!hcd) {
- printk(KERN_ERR "failed to create the usb hcd struct for U132\n");
- ftdi_elan_gone_away(pdev);
- return -ENOMEM;
- } else {
- struct u132 *u132 = hcd_to_u132(hcd);
- retval = 0;
- hcd->rsrc_start = 0;
- mutex_lock(&u132_module_lock);
- u132->sequence_num = ++u132_instances;
- mutex_unlock(&u132_module_lock);
- u132_u132_init_kref(u132);
- u132_initialise(u132, pdev);
- hcd->product_desc = "ELAN U132 Host Controller";
- retval = usb_add_hcd(hcd, 0, 0);
- if (retval != 0) {
- dev_err(&u132->platform_dev->dev, "init error %d\n",
- retval);
- u132_u132_put_kref(u132);
- return retval;
- } else {
- device_wakeup_enable(hcd->self.controller);
- u132_monitor_queue_work(u132, 100);
- return 0;
- }
- }
-}
-
-
-#ifdef CONFIG_PM
-/*
- * for this device there's no useful distinction between the controller
- * and its root hub.
- */
-static int u132_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- int retval = 0, ports;
-
- switch (state.event) {
- case PM_EVENT_FREEZE:
- retval = u132_bus_suspend(hcd);
- break;
- case PM_EVENT_SUSPEND:
- case PM_EVENT_HIBERNATE:
- ports = MAX_U132_PORTS;
- while (ports-- > 0) {
- port_power(u132, ports, 0);
- }
- break;
- }
- return retval;
- }
-}
-
-static int u132_resume(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
- struct u132 *u132 = hcd_to_u132(hcd);
- if (u132->going > 1) {
- dev_err(&u132->platform_dev->dev,
- "device has been removed %d\n", u132->going);
- return -ENODEV;
- } else if (u132->going > 0) {
- dev_err(&u132->platform_dev->dev, "device is being removed\n");
- return -ESHUTDOWN;
- } else {
- int retval = 0;
- if (!u132->port[0].power) {
- int ports = MAX_U132_PORTS;
- while (ports-- > 0) {
- port_power(u132, ports, 1);
- }
- retval = 0;
- } else {
- retval = u132_bus_resume(hcd);
- }
- return retval;
- }
-}
-
-#else
-#define u132_suspend NULL
-#define u132_resume NULL
-#endif
-/*
-* this driver is loaded explicitly by ftdi_u132
-*
-* the platform_driver struct is static because it is per type of module
-*/
-static struct platform_driver u132_platform_driver = {
- .probe = u132_probe,
- .remove = u132_remove,
- .suspend = u132_suspend,
- .resume = u132_resume,
- .driver = {
- .name = hcd_name,
- },
-};
-static int __init u132_hcd_init(void)
-{
- int retval;
- u132_instances = 0;
- u132_exiting = 0;
- if (usb_disabled())
- return -ENODEV;
- workqueue = create_singlethread_workqueue("u132");
- if (!workqueue)
- return -ENOMEM;
- retval = platform_driver_register(&u132_platform_driver);
- if (retval)
- destroy_workqueue(workqueue);
-
- return retval;
-}
-
-
-module_init(u132_hcd_init);
-static void __exit u132_hcd_exit(void)
-{
- mutex_lock(&u132_module_lock);
- u132_exiting += 1;
- mutex_unlock(&u132_module_lock);
- platform_driver_unregister(&u132_platform_driver);
- printk(KERN_INFO "u132-hcd driver deregistered\n");
- wait_event(u132_hcd_wait, u132_instances == 0);
- destroy_workqueue(workqueue);
-}
-
-
-module_exit(u132_hcd_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:u132_hcd");
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index a5f7652db7da..c873cfd4ee86 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -126,8 +126,6 @@ config USB_FTDI_ELAN
worked with a USB PEN Drive inserted into the first USB port of
the PCCARD. A rather pointless thing to do, but useful for testing.
- See also the USB_U132_HCD entry "Elan U132 Adapter Host Controller"
-
It is safe to say M here.
config USB_APPLEDISPLAY
generated by cgit (git 2.34.1) at 2024-05-27 18:46:49 +0000