diff options
| author | Xenia Ragiadakou <burzalodowa@gmail.com> | 2013-08-06 07:52:46 +0300 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2013-08-13 16:05:43 -0700 |
| commit | a0254324eeea3b00676eeb54ba80774a46cb8afb (patch) | |
| tree | 69b73e4bea25d9e12d0348a11d411c31575e1e66 /drivers/usb/host/xhci.c | |
| parent | 4bdfe4c38fd5b06da558050a3288a0a48825a3e7 (diff) | |
| download | lwn-a0254324eeea3b00676eeb54ba80774a46cb8afb.tar.gz lwn-a0254324eeea3b00676eeb54ba80774a46cb8afb.zip | |
xhci: add trace for debug messages related to endpoint reset
This patch defines a new trace event, which is called xhci_dbg_reset_ep
and belongs in the event class xhci_log_msg, and adds tracepoints that
trace the debug messages associated with resetting an endpoint after
the reception of a STALL packet.
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index ffb3ed09eb0d..18c710dc68dc 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -2818,7 +2818,8 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, struct xhci_dequeue_state deq_state; struct xhci_virt_ep *ep; - xhci_dbg(xhci, "Cleaning up stalled endpoint ring\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Cleaning up stalled endpoint ring"); ep = &xhci->devs[udev->slot_id]->eps[ep_index]; /* We need to move the HW's dequeue pointer past this TD, * or it will attempt to resend it on the next doorbell ring. @@ -2831,7 +2832,8 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, * issue a configure endpoint command later. */ if (!(xhci->quirks & XHCI_RESET_EP_QUIRK)) { - xhci_dbg(xhci, "Queueing new dequeue state\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Queueing new dequeue state"); xhci_queue_new_dequeue_state(xhci, udev->slot_id, ep_index, ep->stopped_stream, &deq_state); } else { @@ -2874,16 +2876,19 @@ void xhci_endpoint_reset(struct usb_hcd *hcd, ep_index = xhci_get_endpoint_index(&ep->desc); virt_ep = &xhci->devs[udev->slot_id]->eps[ep_index]; if (!virt_ep->stopped_td) { - xhci_dbg(xhci, "Endpoint 0x%x not halted, refusing to reset.\n", - ep->desc.bEndpointAddress); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Endpoint 0x%x not halted, refusing to reset.", + ep->desc.bEndpointAddress); return; } if (usb_endpoint_xfer_control(&ep->desc)) { - xhci_dbg(xhci, "Control endpoint stall already handled.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Control endpoint stall already handled."); return; } - xhci_dbg(xhci, "Queueing reset endpoint command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Queueing reset endpoint command"); spin_lock_irqsave(&xhci->lock, flags); ret = xhci_queue_reset_ep(xhci, udev->slot_id, ep_index); /* |