diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 78 |
1 files changed, 26 insertions, 52 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 64c1ba353856..2b8d9a24af09 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1820,6 +1820,11 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, int ret; switch (*cmd_status) { + case COMP_CMD_ABORT: + case COMP_CMD_STOP: + xhci_warn(xhci, "Timeout while waiting for configure endpoint command\n"); + ret = -ETIME; + break; case COMP_ENOMEM: dev_warn(&udev->dev, "Not enough host controller resources " "for new device state.\n"); @@ -1866,6 +1871,11 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev = xhci->devs[udev->slot_id]; switch (*cmd_status) { + case COMP_CMD_ABORT: + case COMP_CMD_STOP: + xhci_warn(xhci, "Timeout while waiting for evaluate context command\n"); + ret = -ETIME; + break; case COMP_EINVAL: dev_warn(&udev->dev, "WARN: xHCI driver setup invalid evaluate " "context command.\n"); @@ -2590,7 +2600,6 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, bool ctx_change, bool must_succeed) { int ret; - int timeleft; unsigned long flags; struct xhci_input_control_ctx *ctrl_ctx; struct xhci_virt_device *virt_dev; @@ -2646,21 +2655,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, spin_unlock_irqrestore(&xhci->lock, flags); /* Wait for the configure endpoint command to complete */ - timeleft = wait_for_completion_interruptible_timeout( - command->completion, - XHCI_CMD_DEFAULT_TIMEOUT); - if (timeleft <= 0) { - xhci_warn(xhci, "%s while waiting for %s command\n", - timeleft == 0 ? "Timeout" : "Signal", - ctx_change == 0 ? - "configure endpoint" : - "evaluate context"); - /* cancel the configure endpoint command */ - ret = xhci_cancel_cmd(xhci, command, command->command_trb); - if (ret < 0) - return ret; - return -ETIME; - } + wait_for_completion(command->completion); if (!ctx_change) ret = xhci_configure_endpoint_result(xhci, udev, @@ -3438,7 +3433,6 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) unsigned int slot_id; struct xhci_virt_device *virt_dev; struct xhci_command *reset_device_cmd; - int timeleft; int last_freed_endpoint; struct xhci_slot_ctx *slot_ctx; int old_active_eps = 0; @@ -3506,15 +3500,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) spin_unlock_irqrestore(&xhci->lock, flags); /* Wait for the Reset Device command to finish */ - timeleft = wait_for_completion_interruptible_timeout( - reset_device_cmd->completion, - XHCI_CMD_DEFAULT_TIMEOUT); - if (timeleft <= 0) { - xhci_warn(xhci, "%s while waiting for reset device command\n", - timeleft == 0 ? "Timeout" : "Signal"); - ret = -ETIME; - goto command_cleanup; - } + wait_for_completion(reset_device_cmd->completion); /* The Reset Device command can't fail, according to the 0.95/0.96 spec, * unless we tried to reset a slot ID that wasn't enabled, @@ -3522,6 +3508,11 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) */ ret = reset_device_cmd->status; switch (ret) { + case COMP_CMD_ABORT: + case COMP_CMD_STOP: + xhci_warn(xhci, "Timeout waiting for reset device command\n"); + ret = -ETIME; + goto command_cleanup; case COMP_EBADSLT: /* 0.95 completion code for bad slot ID */ case COMP_CTX_STATE: /* 0.96 completion code for same thing */ xhci_dbg(xhci, "Can't reset device (slot ID %u) in %s state\n", @@ -3691,7 +3682,6 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); unsigned long flags; - int timeleft; int ret; struct xhci_command *command; @@ -3711,19 +3701,9 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); - /* XXX: how much time for xHC slot assignment? */ - timeleft = wait_for_completion_interruptible_timeout( - command->completion, - XHCI_CMD_DEFAULT_TIMEOUT); - if (timeleft <= 0) { - xhci_warn(xhci, "%s while waiting for a slot\n", - timeleft == 0 ? "Timeout" : "Signal"); - /* cancel the enable slot request */ - ret = xhci_cancel_cmd(xhci, NULL, command->command_trb); - return ret; - } + wait_for_completion(command->completion); - if (!xhci->slot_id) { + if (!xhci->slot_id || command->status != COMP_SUCCESS) { xhci_err(xhci, "Error while assigning device slot ID\n"); xhci_err(xhci, "Max number of devices this xHCI host supports is %u.\n", HCS_MAX_SLOTS( @@ -3792,7 +3772,6 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, { const char *act = setup == SETUP_CONTEXT_ONLY ? "context" : "address"; unsigned long flags; - int timeleft; struct xhci_virt_device *virt_dev; int ret = 0; struct xhci_hcd *xhci = hcd_to_xhci(hcd); @@ -3867,23 +3846,18 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, spin_unlock_irqrestore(&xhci->lock, flags); /* ctrl tx can take up to 5 sec; XXX: need more time for xHC? */ - timeleft = wait_for_completion_interruptible_timeout( - command->completion, XHCI_CMD_DEFAULT_TIMEOUT); + wait_for_completion(command->completion); + /* FIXME: From section 4.3.4: "Software shall be responsible for timing * the SetAddress() "recovery interval" required by USB and aborting the * command on a timeout. */ - if (timeleft <= 0) { - xhci_warn(xhci, "%s while waiting for setup %s command\n", - timeleft == 0 ? "Timeout" : "Signal", act); - /* cancel the address device command */ - ret = xhci_cancel_cmd(xhci, NULL, command->command_trb); - if (ret < 0) - return ret; - return -ETIME; - } - switch (command->status) { + case COMP_CMD_ABORT: + case COMP_CMD_STOP: + xhci_warn(xhci, "Timeout while waiting for setup device command\n"); + ret = -ETIME; + break; case COMP_CTX_STATE: case COMP_EBADSLT: xhci_err(xhci, "Setup ERROR: setup %s command for slot %d.\n", |