This patch adds two fixes:
- Property halted of s3c_hsotg_ep structure is actually changed when halt is
set/cleared.
- All requests for endpoint are completed when it was halted, and the halt was
cleared by CLEAR_FEATURE, but not when new state is same as previous.
Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/usb/gadget/s3c-hsotg.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 4fb2199..db4da58 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -1097,6 +1097,7 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE);
struct s3c_hsotg_ep *ep;
int ret;
+ bool halted;
dev_dbg(hsotg->dev, "%s: %s_FEATURE\n",
__func__, set ? "SET" : "CLEAR");
@@ -1111,6 +1112,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
switch (le16_to_cpu(ctrl->wValue)) {
case USB_ENDPOINT_HALT:
+ halted = ep->halted;
+
s3c_hsotg_ep_sethalt(&ep->ep, set);
ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0);
@@ -1120,7 +1123,12 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
return ret;
}
- if (!set) {
+ /*
+ * we have to complete all requests for ep if it was halted,
+ * and the halt was cleared by CLEAR_FEATURE
+ */
+
+ if (!set || halted) {
/*
* If we have request in progress,
* then complete it
@@ -2603,6 +2611,7 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
/* default, set to non-periodic */
hs_ep->periodic = 0;
+ hs_ep->halted = 0;
switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
case USB_ENDPOINT_XFER_ISOC:
@@ -2798,6 +2807,8 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
writel(epctl, hs->regs + epreg);
+ hs_ep->halted = value;
+
return 0;
}
--
1.7.9.5
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