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authorArnd Bergmann <arnd@arndb.de>2011-10-20 15:30:55 +0200
committerArnd Bergmann <arnd@arndb.de>2011-10-20 15:30:55 +0200
commit29ea35969b92a4be122a58c4aceea8c5e2c388d9 (patch)
tree8285c0e98e7bb03868d390b58180e3cab876a8db /drivers/usb
parent112d17d6f75b93e1dcaec2e2232a411148b3bf71 (diff)
parentb4cbb8a4e602ea77b0525d06eff89c6a6070dab3 (diff)
Merge branch 'imx/devel' into next/devel
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/host/xhci-hub.c2
-rw-r--r--drivers/usb/host/xhci-ring.c19
2 files changed, 20 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 1e96d1f1fe6b..723f8231193d 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -761,7 +761,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
memset(buf, 0, retval);
status = 0;
- mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC;
+ mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC;
spin_lock_irqsave(&xhci->lock, flags);
/* For each port, did anything change? If so, set that bit in buf. */
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 54139a2f06ce..952e2ded61af 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1934,8 +1934,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
int status = -EINPROGRESS;
struct urb_priv *urb_priv;
struct xhci_ep_ctx *ep_ctx;
+ struct list_head *tmp;
u32 trb_comp_code;
int ret = 0;
+ int td_num = 0;
slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
xdev = xhci->devs[slot_id];
@@ -1957,6 +1959,12 @@ static int handle_tx_event(struct xhci_hcd *xhci,
return -ENODEV;
}
+ /* Count current td numbers if ep->skip is set */
+ if (ep->skip) {
+ list_for_each(tmp, &ep_ring->td_list)
+ td_num++;
+ }
+
event_dma = le64_to_cpu(event->buffer);
trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len));
/* Look for common error cases */
@@ -2068,7 +2076,18 @@ static int handle_tx_event(struct xhci_hcd *xhci,
goto cleanup;
}
+ /* We've skipped all the TDs on the ep ring when ep->skip set */
+ if (ep->skip && td_num == 0) {
+ ep->skip = false;
+ xhci_dbg(xhci, "All tds on the ep_ring skipped. "
+ "Clear skip flag.\n");
+ ret = 0;
+ goto cleanup;
+ }
+
td = list_entry(ep_ring->td_list.next, struct xhci_td, td_list);
+ if (ep->skip)
+ td_num--;
/* Is this a TRB in the currently executing TD? */
event_seg = trb_in_td(ep_ring->deq_seg, ep_ring->dequeue,