diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/ehci-sched.c | 15 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-xls.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 6 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-hcd.c | 15 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-pci.c | 26 | ||||
| -rw-r--r-- | drivers/usb/host/ohci.h | 1 | ||||
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 57 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 5 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 13 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 34 |
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; |
