diff options
Diffstat (limited to 'target/linux/adm5120/patches-2.6.24/910-usb_manage_endpoint_queues.patch')
| -rw-r--r-- | target/linux/adm5120/patches-2.6.24/910-usb_manage_endpoint_queues.patch | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/target/linux/adm5120/patches-2.6.24/910-usb_manage_endpoint_queues.patch b/target/linux/adm5120/patches-2.6.24/910-usb_manage_endpoint_queues.patch new file mode 100644 index 000000000..46b61d637 --- /dev/null +++ b/target/linux/adm5120/patches-2.6.24/910-usb_manage_endpoint_queues.patch @@ -0,0 +1,110 @@ +Index: linux-2.6.24/drivers/usb/host/adm5120-hcd.c +=================================================================== +--- linux-2.6.24.orig/drivers/usb/host/adm5120-hcd.c ++++ linux-2.6.24/drivers/usb/host/adm5120-hcd.c +@@ -83,8 +83,8 @@ static void admhc_stop(struct usb_hcd *h + /* + * queue up an urb for anything except the root hub + */ +-static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, +- struct urb *urb, gfp_t mem_flags) ++static int admhc_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, ++ gfp_t mem_flags) + { + struct admhcd *ahcd = hcd_to_admhcd(hcd); + struct ed *ed; +@@ -101,7 +101,7 @@ static int admhc_urb_enqueue(struct usb_ + #endif + + /* every endpoint has an ed, locate and maybe (re)initialize it */ +- ed = ed_get(ahcd, ep, urb->dev, pipe, urb->interval); ++ ed = ed_get(ahcd, urb->ep, urb->dev, pipe, urb->interval); + if (!ed) + return -ENOMEM; + +@@ -161,22 +161,17 @@ static int admhc_urb_enqueue(struct usb_ + goto fail; + } + +- /* in case of unlink-during-submit */ +- spin_lock(&urb->lock); +- if (urb->status != -EINPROGRESS) { +- spin_unlock(&urb->lock); +- urb->hcpriv = urb_priv; +- finish_urb(ahcd, urb); +- ret = 0; ++ ret = usb_hcd_link_urb_to_ep(hcd, urb); ++ if (ret) + goto fail; +- } + + /* schedule the ed if needed */ + if (ed->state == ED_IDLE) { + ret = ed_schedule(ahcd, ed); +- if (ret < 0) +- goto fail0; +- ++ if (ret < 0) { ++ usb_hcd_unlink_urb_from_ep(hcd, urb); ++ goto fail; ++ } + if (ed->type == PIPE_ISOCHRONOUS) { + u16 frame = admhc_frame_no(ahcd); + +@@ -204,8 +199,6 @@ static int admhc_urb_enqueue(struct usb_ + admhc_dump_ed(ahcd, "admhc_urb_enqueue", urb_priv->ed, 1); + #endif + +-fail0: +- spin_unlock(&urb->lock); + fail: + if (ret) + urb_priv_free(ahcd, urb_priv); +@@ -220,18 +213,23 @@ fail: + * asynchronously, and we might be dealing with an urb that's + * partially transferred, or an ED with other urbs being unlinked. + */ +-static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) ++static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, ++ int status) + { + struct admhcd *ahcd = hcd_to_admhcd(hcd); + unsigned long flags; ++ int ret; + + spin_lock_irqsave(&ahcd->lock, flags); + + #ifdef ADMHC_VERBOSE_DEBUG + urb_print(ahcd, urb, "DEQUEUE", 1); + #endif +- +- if (HC_IS_RUNNING(hcd->state)) { ++ ret = usb_hcd_check_unlink_urb(hcd, urb, status); ++ if (ret) { ++ /* Do nothing */ ++ ; ++ } else if (HC_IS_RUNNING(hcd->state)) { + struct urb_priv *urb_priv; + + /* Unless an IRQ completed the unlink while it was being +@@ -253,7 +251,7 @@ static int admhc_urb_dequeue(struct usb_ + } + spin_unlock_irqrestore(&ahcd->lock, flags); + +- return 0; ++ return ret; + } + + /*-------------------------------------------------------------------------*/ +Index: linux-2.6.24/drivers/usb/host/adm5120-q.c +=================================================================== +--- linux-2.6.24.orig/drivers/usb/host/adm5120-q.c ++++ linux-2.6.24/drivers/usb/host/adm5120-q.c +@@ -63,6 +63,7 @@ __acquires(ahcd->lock) + #endif + + /* urb->complete() can reenter this HCD */ ++ usb_hcd_unlink_urb_from_ep(admhcd_to_hcd(ahcd), urb); + spin_unlock(&ahcd->lock); + usb_hcd_giveback_urb(admhcd_to_hcd(ahcd), urb); + spin_lock(&ahcd->lock); |