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-rw-r--r--drivers/usb/host/ehci-sched.c15
-rw-r--r--drivers/usb/host/ehci-xls.c2
-rw-r--r--drivers/usb/host/ohci-at91.c6
-rw-r--r--drivers/usb/host/ohci-hcd.c15
-rw-r--r--drivers/usb/host/ohci-pci.c26
-rw-r--r--drivers/usb/host/ohci.h1
-rw-r--r--drivers/usb/host/pci-quirks.c57
-rw-r--r--drivers/usb/host/xhci-mem.c5
-rw-r--r--drivers/usb/host/xhci-ring.c13
-rw-r--r--drivers/usb/host/xhci.c34
10 files changed, 73 insertions, 101 deletions
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 2e829fae6482..56a32033adb3 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1479,10 +1479,15 @@ iso_stream_schedule (
/* NOTE: assumes URB_ISO_ASAP, to limit complexity/bugs */
- /* find a uframe slot with enough bandwidth */
- next = start + period;
- for (; start < next; start++) {
-
+ /* find a uframe slot with enough bandwidth.
+ * Early uframes are more precious because full-speed
+ * iso IN transfers can't use late uframes,
+ * and therefore they should be allocated last.
+ */
+ next = start;
+ start += period;
+ do {
+ start--;
/* check schedule: enough space? */
if (stream->highspeed) {
if (itd_slot_ok(ehci, mod, start,
@@ -1495,7 +1500,7 @@ iso_stream_schedule (
start, sched, period))
break;
}
- }
+ } while (start > next);
/* no room in the schedule */
if (start == next) {
diff --git a/drivers/usb/host/ehci-xls.c b/drivers/usb/host/ehci-xls.c
index fe74bd676018..b4fb511d24bc 100644
--- a/drivers/usb/host/ehci-xls.c
+++ b/drivers/usb/host/ehci-xls.c
@@ -19,7 +19,7 @@ static int ehci_xls_setup(struct usb_hcd *hcd)
ehci->caps = hcd->regs;
ehci->regs = hcd->regs +
- HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+ HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
dbg_hcs_params(ehci, "reset");
dbg_hcc_params(ehci, "reset");
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index ba3a46b78b75..95a9fec38e89 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -223,6 +223,9 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
if (port < 0 || port >= 2)
return;
+ if (pdata->vbus_pin[port] <= 0)
+ return;
+
gpio_set_value(pdata->vbus_pin[port], !pdata->vbus_pin_inverted ^ enable);
}
@@ -231,6 +234,9 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
if (port < 0 || port >= 2)
return -EINVAL;
+ if (pdata->vbus_pin[port] <= 0)
+ return -EINVAL;
+
return gpio_get_value(pdata->vbus_pin[port]) ^ !pdata->vbus_pin_inverted;
}
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 34efd479e068..b2639191549e 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -389,17 +389,14 @@ ohci_shutdown (struct usb_hcd *hcd)
struct ohci_hcd *ohci;
ohci = hcd_to_ohci (hcd);
- ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
- ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
+ ohci_writel(ohci, (u32) ~0, &ohci->regs->intrdisable);
- /* If the SHUTDOWN quirk is set, don't put the controller in RESET */
- ohci->hc_control &= (ohci->flags & OHCI_QUIRK_SHUTDOWN ?
- OHCI_CTRL_RWC | OHCI_CTRL_HCFS :
- OHCI_CTRL_RWC);
- ohci_writel(ohci, ohci->hc_control, &ohci->regs->control);
+ /* Software reset, after which the controller goes into SUSPEND */
+ ohci_writel(ohci, OHCI_HCR, &ohci->regs->cmdstatus);
+ ohci_readl(ohci, &ohci->regs->cmdstatus); /* flush the writes */
+ udelay(10);
- /* flush the writes */
- (void) ohci_readl (ohci, &ohci->regs->control);
+ ohci_writel(ohci, ohci->fminterval, &ohci->regs->fminterval);
}
static int check_ed(struct ohci_hcd *ohci, struct ed *ed)
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index ad8166c681e2..bc01b064585a 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -175,28 +175,6 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd)
return 0;
}
-/* nVidia controllers continue to drive Reset signalling on the bus
- * even after system shutdown, wasting power. This flag tells the
- * shutdown routine to leave the controller OPERATIONAL instead of RESET.
- */
-static int ohci_quirk_nvidia_shutdown(struct usb_hcd *hcd)
-{
- struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-
- /* Evidently nVidia fixed their later hardware; this is a guess at
- * the changeover point.
- */
-#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_USB 0x026d
-
- if (pdev->device < PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_USB) {
- ohci->flags |= OHCI_QUIRK_SHUTDOWN;
- ohci_dbg(ohci, "enabled nVidia shutdown quirk\n");
- }
-
- return 0;
-}
-
static void sb800_prefetch(struct ohci_hcd *ohci, int on)
{
struct pci_dev *pdev;
@@ -260,10 +238,6 @@ static const struct pci_device_id ohci_pci_quirks[] = {
PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4399),
.driver_data = (unsigned long)ohci_quirk_amd700,
},
- {
- PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
- .driver_data = (unsigned long) ohci_quirk_nvidia_shutdown,
- },
/* FIXME for some of the early AMD 760 southbridges, OHCI
* won't work at all. blacklist them.
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index 35e5fd640ce7..0795b934d00c 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -403,7 +403,6 @@ struct ohci_hcd {
#define OHCI_QUIRK_HUB_POWER 0x100 /* distrust firmware power/oc setup */
#define OHCI_QUIRK_AMD_PLL 0x200 /* AMD PLL quirk*/
#define OHCI_QUIRK_AMD_PREFETCH 0x400 /* pre-fetch for ISO transfer */
-#define OHCI_QUIRK_SHUTDOWN 0x800 /* nVidia power bug */
// there are also chip quirks/bugs in init logic
struct work_struct nec_work; /* Worker for NEC quirk */
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 27a3dec32fa2..caf87428ca43 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -37,6 +37,7 @@
#define OHCI_INTRENABLE 0x10
#define OHCI_INTRDISABLE 0x14
#define OHCI_FMINTERVAL 0x34
+#define OHCI_HCFS (3 << 6) /* hc functional state */
#define OHCI_HCR (1 << 0) /* host controller reset */
#define OHCI_OCR (1 << 3) /* ownership change request */
#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
@@ -466,6 +467,8 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev)
{
void __iomem *base;
u32 control;
+ u32 fminterval;
+ int cnt;
if (!mmio_resource_enabled(pdev, 0))
return;
@@ -498,41 +501,32 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev)
}
#endif
- /* reset controller, preserving RWC (and possibly IR) */
- writel(control & OHCI_CTRL_MASK, base + OHCI_CONTROL);
- readl(base + OHCI_CONTROL);
+ /* disable interrupts */
+ writel((u32) ~0, base + OHCI_INTRDISABLE);
- /* Some NVIDIA controllers stop working if kept in RESET for too long */
- if (pdev->vendor == PCI_VENDOR_ID_NVIDIA) {
- u32 fminterval;
- int cnt;
+ /* Reset the USB bus, if the controller isn't already in RESET */
+ if (control & OHCI_HCFS) {
+ /* Go into RESET, preserving RWC (and possibly IR) */
+ writel(control & OHCI_CTRL_MASK, base + OHCI_CONTROL);
+ readl(base + OHCI_CONTROL);
- /* drive reset for at least 50 ms (7.1.7.5) */
+ /* drive bus reset for at least 50 ms (7.1.7.5) */
msleep(50);
+ }
- /* software reset of the controller, preserving HcFmInterval */
- fminterval = readl(base + OHCI_FMINTERVAL);
- writel(OHCI_HCR, base + OHCI_CMDSTATUS);
+ /* software reset of the controller, preserving HcFmInterval */
+ fminterval = readl(base + OHCI_FMINTERVAL);
+ writel(OHCI_HCR, base + OHCI_CMDSTATUS);
- /* reset requires max 10 us delay */
- for (cnt = 30; cnt > 0; --cnt) { /* ... allow extra time */
- if ((readl(base + OHCI_CMDSTATUS) & OHCI_HCR) == 0)
- break;
- udelay(1);
- }
- writel(fminterval, base + OHCI_FMINTERVAL);
-
- /* Now we're in the SUSPEND state with all devices reset
- * and wakeups and interrupts disabled
- */
+ /* reset requires max 10 us delay */
+ for (cnt = 30; cnt > 0; --cnt) { /* ... allow extra time */
+ if ((readl(base + OHCI_CMDSTATUS) & OHCI_HCR) == 0)
+ break;
+ udelay(1);
}
+ writel(fminterval, base + OHCI_FMINTERVAL);
- /*
- * disable interrupts
- */
- writel(~(u32)0, base + OHCI_INTRDISABLE);
- writel(~(u32)0, base + OHCI_INTRSTATUS);
-
+ /* Now the controller is safely in SUSPEND and nothing can wake it up */
iounmap(base);
}
@@ -627,7 +621,7 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
void __iomem *base, *op_reg_base;
u32 hcc_params, cap, val;
u8 offset, cap_length;
- int wait_time, delta, count = 256/4;
+ int wait_time, count = 256/4;
if (!mmio_resource_enabled(pdev, 0))
return;
@@ -673,11 +667,10 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
writel(val, op_reg_base + EHCI_USBCMD);
wait_time = 2000;
- delta = 100;
do {
writel(0x3f, op_reg_base + EHCI_USBSTS);
- udelay(delta);
- wait_time -= delta;
+ udelay(100);
+ wait_time -= 100;
val = readl(op_reg_base + EHCI_USBSTS);
if ((val == ~(u32)0) || (val & EHCI_USBSTS_HALTED)) {
break;
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 42a22b8e6922..0e4b25fa3bcd 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -982,7 +982,6 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
struct xhci_virt_device *dev;
struct xhci_ep_ctx *ep0_ctx;
struct xhci_slot_ctx *slot_ctx;
- struct xhci_input_control_ctx *ctrl_ctx;
u32 port_num;
struct usb_device *top_dev;
@@ -994,12 +993,8 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud
return -EINVAL;
}
ep0_ctx = xhci_get_ep_ctx(xhci, dev->in_ctx, 0);
- ctrl_ctx = xhci_get_input_control_ctx(xhci, dev->in_ctx);
slot_ctx = xhci_get_slot_ctx(xhci, dev->in_ctx);
- /* 2) New slot context and endpoint 0 context are valid*/
- ctrl_ctx->add_flags = cpu_to_le32(SLOT_FLAG | EP0_FLAG);
-
/* 3) Only the control endpoint is valid - one endpoint context */
slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | udev->route);
switch (udev->speed) {
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 940321b3ec68..9f1d4b15d818 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -816,23 +816,24 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
struct xhci_ring *ring;
struct xhci_td *cur_td;
int ret, i, j;
+ unsigned long flags;
ep = (struct xhci_virt_ep *) arg;
xhci = ep->xhci;
- spin_lock(&xhci->lock);
+ spin_lock_irqsave(&xhci->lock, flags);
ep->stop_cmds_pending--;
if (xhci->xhc_state & XHCI_STATE_DYING) {
xhci_dbg(xhci, "Stop EP timer ran, but another timer marked "
"xHCI as DYING, exiting.\n");
- spin_unlock(&xhci->lock);
+ spin_unlock_irqrestore(&xhci->lock, flags);
return;
}
if (!(ep->stop_cmds_pending == 0 && (ep->ep_state & EP_HALT_PENDING))) {
xhci_dbg(xhci, "Stop EP timer ran, but no command pending, "
"exiting.\n");
- spin_unlock(&xhci->lock);
+ spin_unlock_irqrestore(&xhci->lock, flags);
return;
}
@@ -844,11 +845,11 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
xhci->xhc_state |= XHCI_STATE_DYING;
/* Disable interrupts from the host controller and start halting it */
xhci_quiesce(xhci);
- spin_unlock(&xhci->lock);
+ spin_unlock_irqrestore(&xhci->lock, flags);
ret = xhci_halt(xhci);
- spin_lock(&xhci->lock);
+ spin_lock_irqsave(&xhci->lock, flags);
if (ret < 0) {
/* This is bad; the host is not responding to commands and it's
* not allowing itself to be halted. At least interrupts are
@@ -896,7 +897,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
}
}
}
- spin_unlock(&xhci->lock);
+ spin_unlock_irqrestore(&xhci->lock, flags);
xhci_dbg(xhci, "Calling usb_hc_died()\n");
usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
xhci_dbg(xhci, "xHCI host controller is dead.\n");
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1ff95a0df576..aa94c0195791 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -799,7 +799,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
u32 command, temp = 0;
struct usb_hcd *hcd = xhci_to_hcd(xhci);
struct usb_hcd *secondary_hcd;
- int retval;
+ int retval = 0;
/* Wait a bit if either of the roothubs need to settle from the
* transition into bus suspend.
@@ -809,6 +809,9 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
xhci->bus_state[1].next_statechange))
msleep(100);
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);
+
spin_lock_irq(&xhci->lock);
if (xhci->quirks & XHCI_RESET_ON_RESUME)
hibernated = true;
@@ -878,20 +881,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
return retval;
xhci_dbg(xhci, "Start the primary HCD\n");
retval = xhci_run(hcd->primary_hcd);
- if (retval)
- goto failed_restart;
-
- xhci_dbg(xhci, "Start the secondary HCD\n");
- retval = xhci_run(secondary_hcd);
if (!retval) {
- set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- set_bit(HCD_FLAG_HW_ACCESSIBLE,
- &xhci->shared_hcd->flags);
+ xhci_dbg(xhci, "Start the secondary HCD\n");
+ retval = xhci_run(secondary_hcd);
}
-failed_restart:
hcd->state = HC_STATE_SUSPENDED;
xhci->shared_hcd->state = HC_STATE_SUSPENDED;
- return retval;
+ goto done;
}
/* step 4: set Run/Stop bit */
@@ -910,11 +906,14 @@ failed_restart:
* Running endpoints by ringing their doorbells
*/
- set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- set_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);
-
spin_unlock_irq(&xhci->lock);
- return 0;
+
+ done:
+ if (retval == 0) {
+ usb_hcd_resume_root_hub(hcd);
+ usb_hcd_resume_root_hub(xhci->shared_hcd);
+ }
+ return retval;
}
#endif /* CONFIG_PM */
@@ -3504,6 +3503,10 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
/* Otherwise, update the control endpoint ring enqueue pointer. */
else
xhci_copy_ep0_dequeue_into_input_ctx(xhci, udev);
+ ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+ ctrl_ctx->add_flags = cpu_to_le32(SLOT_FLAG | EP0_FLAG);
+ ctrl_ctx->drop_flags = 0;
+
xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id);
xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2);
@@ -3585,7 +3588,6 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
virt_dev->address = (le32_to_cpu(slot_ctx->dev_state) & DEV_ADDR_MASK)
+ 1;
/* Zero the input context control for later use */
- ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
ctrl_ctx->add_flags = 0;
ctrl_ctx->drop_flags = 0;
generated by cgit (git 2.34.1) at 2024-06-19 21:49:38 +0000