#include <linux/slab.h>
#include <linux/dmi.h>
#include <linux/dma-mapping.h>
+#include <linux/usb/quirks.h>
#include "xhci.h"
#include "xhci-trace.h"
"waited %u microseconds.\n",
XHCI_MAX_HALT_USEC);
if (!ret)
- xhci->xhc_state &= ~(XHCI_STATE_HALTED | XHCI_STATE_DYING);
+ /* clear state flags. Including dying, halted or removing */
+ xhci->xhc_state = 0;
return ret;
}
command |= CMD_RESET;
writel(command, &xhci->op_regs->command);
+ /* Existing Intel xHCI controllers require a delay of 1 mS,
+ * after setting the CMD_RESET bit, and before accessing any
+ * HC registers. This allows the HC to complete the
+ * reset operation and be ready for HC register access.
+ * Without this delay, the subsequent HC register access,
+ * may result in a system hang very rarely.
+ */
+ if (xhci->quirks & XHCI_INTEL_HOST)
+ udelay(1000);
+
ret = xhci_handshake(&xhci->op_regs->command,
CMD_RESET, 0, 10 * 1000 * 1000);
if (ret)
u32 temp;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- if (xhci->xhc_state & XHCI_STATE_HALTED)
- return;
-
mutex_lock(&xhci->mutex);
- spin_lock_irq(&xhci->lock);
- xhci->xhc_state |= XHCI_STATE_HALTED;
- xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
- /* Make sure the xHC is halted for a USB3 roothub
- * (xhci_stop() could be called as part of failed init).
- */
- xhci_halt(xhci);
- xhci_reset(xhci);
- spin_unlock_irq(&xhci->lock);
+ if (!(xhci->xhc_state & XHCI_STATE_HALTED)) {
+ spin_lock_irq(&xhci->lock);
+
+ xhci->xhc_state |= XHCI_STATE_HALTED;
+ xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
+ xhci_halt(xhci);
+ xhci_reset(xhci);
+
+ spin_unlock_irq(&xhci->lock);
+ }
+
+ if (!usb_hcd_is_primary_hcd(hcd)) {
+ mutex_unlock(&xhci->mutex);
+ return;
+ }
xhci_cleanup_msix(xhci);
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ if (!hcd->rh_registered)
+ return;
+
+ /* Don't poll the roothubs on shutdown */
+ clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+ del_timer_sync(&hcd->rh_timer);
+ clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
+ del_timer_sync(&xhci->shared_hcd->rh_timer);
+
if (xhci->quirks & XHCI_SPURIOUS_REBOOT)
usb_disable_xhci_ports(to_pci_dev(hcd->self.controller));
/* Resume root hubs only when have pending events. */
status = readl(&xhci->op_regs->status);
if (status & STS_EINT) {
- usb_hcd_resume_root_hub(hcd);
usb_hcd_resume_root_hub(xhci->shared_hcd);
+ usb_hcd_resume_root_hub(hcd);
}
}
/* Re-enable port polling. */
xhci_dbg(xhci, "%s: starting port polling.\n", __func__);
- set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
- usb_hcd_poll_rh_status(hcd);
set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
usb_hcd_poll_rh_status(xhci->shared_hcd);
+ set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+ usb_hcd_poll_rh_status(hcd);
return retval;
}
if (ret || !urb->hcpriv)
goto done;
temp = readl(&xhci->op_regs->status);
- if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_HALTED)) {
+ if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_HALTED) ||
+ (xhci->xhc_state & XHCI_STATE_REMOVING)) {
xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
"HW died, freeing TD.");
urb_priv = urb->hcpriv;
- for (i = urb_priv->td_cnt; i < urb_priv->length; i++) {
+ for (i = urb_priv->td_cnt;
+ i < urb_priv->length && xhci->devs[urb->dev->slot_id];
+ i++) {
td = urb_priv->td[i];
if (!list_empty(&td->td_list))
list_del_init(&td->td_list);
xhci_urb_free_priv(urb_priv);
return ret;
}
- if ((xhci->xhc_state & XHCI_STATE_DYING) ||
- (xhci->xhc_state & XHCI_STATE_HALTED)) {
- xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
- "Ep 0x%x: URB %p to be canceled on "
- "non-responsive xHCI host.",
- urb->ep->desc.bEndpointAddress, urb);
- /* Let the stop endpoint command watchdog timer (which set this
- * state) finish cleaning up the endpoint TD lists. We must
- * have caught it in the middle of dropping a lock and giving
- * back an URB.
- */
- goto done;
- }
ep_index = xhci_get_endpoint_index(&urb->ep->desc);
ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index];
case USB_SPEED_HIGH:
return HS_BLOCK;
case USB_SPEED_SUPER:
+ case USB_SPEED_SUPER_PLUS:
return SS_BLOCK;
case USB_SPEED_UNKNOWN:
case USB_SPEED_WIRELESS:
unsigned int packets_remaining = 0;
unsigned int i;
- if (virt_dev->udev->speed == USB_SPEED_SUPER)
+ if (virt_dev->udev->speed >= USB_SPEED_SUPER)
return xhci_check_ss_bw(xhci, virt_dev);
if (virt_dev->udev->speed == USB_SPEED_HIGH) {
if (xhci_is_async_ep(ep_bw->type))
return;
- if (udev->speed == USB_SPEED_SUPER) {
+ if (udev->speed >= USB_SPEED_SUPER) {
if (xhci_is_sync_in_ep(ep_bw->type))
xhci->devs[udev->slot_id]->bw_table->ss_bw_in -=
xhci_get_ss_bw_consumed(ep_bw);
interval_bw->overhead[HS_OVERHEAD_TYPE] -= 1;
break;
case USB_SPEED_SUPER:
+ case USB_SPEED_SUPER_PLUS:
case USB_SPEED_UNKNOWN:
case USB_SPEED_WIRELESS:
/* Should never happen because only LS/FS/HS endpoints will get
interval_bw->overhead[HS_OVERHEAD_TYPE] += 1;
break;
case USB_SPEED_SUPER:
+ case USB_SPEED_SUPER_PLUS:
case USB_SPEED_UNKNOWN:
case USB_SPEED_WIRELESS:
/* Should never happen because only LS/FS/HS endpoints will get
if (ret <= 0)
return ret;
xhci = hcd_to_xhci(hcd);
- if (xhci->xhc_state & XHCI_STATE_DYING)
+ if ((xhci->xhc_state & XHCI_STATE_DYING) ||
+ (xhci->xhc_state & XHCI_STATE_REMOVING))
return -ENODEV;
xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev);
/* Don't disable the slot if the host controller is dead. */
state = readl(&xhci->op_regs->status);
if (state == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) ||
- (xhci->xhc_state & XHCI_STATE_HALTED)) {
+ (xhci->xhc_state & XHCI_STATE_HALTED) ||
+ (xhci->xhc_state & XHCI_STATE_REMOVING)) {
xhci_free_virt_device(xhci, udev->slot_id);
spin_unlock_irqrestore(&xhci->lock, flags);
kfree(command);
mutex_lock(&xhci->mutex);
- if (xhci->xhc_state) /* dying or halted */
+ if (xhci->xhc_state) { /* dying, removing or halted */
+ ret = -ESHUTDOWN;
goto out;
+ }
if (!udev->slot_id) {
xhci_dbg_trace(xhci, trace_xhci_dbg_address,
ctrl_ctx->add_flags |= cpu_to_le32(SLOT_FLAG);
slot_ctx = xhci_get_slot_ctx(xhci, config_cmd->in_ctx);
slot_ctx->dev_info |= cpu_to_le32(DEV_HUB);
+ /*
+ * refer to section 6.2.2: MTT should be 0 for full speed hub,
+ * but it may be already set to 1 when setup an xHCI virtual
+ * device, so clear it anyway.
+ */
if (tt->multi)
slot_ctx->dev_info |= cpu_to_le32(DEV_MTT);
+ else if (hdev->speed == USB_SPEED_FULL)
+ slot_ctx->dev_info &= cpu_to_le32(~DEV_MTT);
+
if (xhci->hci_version > 0x95) {
xhci_dbg(xhci, "xHCI version %x needs hub "
"TT think time and number of ports\n",
/* xHCI private pointer was set in xhci_pci_probe for the second
* registered roothub.
*/
+ if (xhci->quirks & XHCI_DIS_AUTOSUSPEND)
+ xhci->shared_hcd->self.root_hub->quirks |=
+ USB_QUIRK_AUTO_SUSPEND;
+
return 0;
}
xhci->hcc_params2 = readl(&xhci->cap_regs->hcc_params2);
xhci_print_registers(xhci);
- xhci->quirks = quirks;
+ xhci->quirks |= quirks;
get_quirks(dev, xhci);
BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
+
+ if (usb_disabled())
+ return -ENODEV;
+
return 0;
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff