Addd endpoint wedge support. Tested by USBCV MSC tests.
Signed-off-by: Argishti Aleksanyan <Argishti.Aleksanyan@xxxxxxxxxxxx>
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
---
drivers/usb/dwc2/core.h | 2 ++
drivers/usb/dwc2/gadget.c | 28 +++++++++++++++++++++++++++-
2 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index ab6b815e0089..1f14bcc94b69 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -122,6 +122,7 @@ struct dwc2_hsotg_req;
* @periodic: Set if this is a periodic ep, such as Interrupt
* @isochronous: Set if this is a isochronous ep
* @send_zlp: Set if we need to send a zero-length packet.
+ * @wedged: Set if ep is wedged.
* @desc_list_dma: The DMA address of descriptor chain currently in use.
* @desc_list: Pointer to descriptor DMA chain head currently in use.
* @desc_count: Count of entries within the DMA descriptor chain of EP.
@@ -172,6 +173,7 @@ struct dwc2_hsotg_ep {
unsigned int periodic:1;
unsigned int isochronous:1;
unsigned int send_zlp:1;
+ unsigned int wedged:1;
unsigned int target_frame;
#define TARGET_FRAME_INITIAL 0xFFFFFFFF
bool frame_overrun;
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index c581ee41ac81..fe567069dcb2 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1806,7 +1806,8 @@ static int dwc2_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
case USB_ENDPOINT_HALT:
halted = ep->halted;
- dwc2_hsotg_ep_sethalt(&ep->ep, set, true);
+ if (!ep->wedged)
+ dwc2_hsotg_ep_sethalt(&ep->ep, set, true);
ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);
if (ret) {
@@ -4046,6 +4047,7 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep,
hs_ep->isochronous = 0;
hs_ep->periodic = 0;
hs_ep->halted = 0;
+ hs_ep->wedged = 0;
hs_ep->interval = desc->bInterval;
switch (ep_type) {
@@ -4286,6 +4288,27 @@ static int dwc2_hsotg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
return 0;
}
+/**
+ * dwc2_gadget_ep_set_wedge - set wedge on a given endpoint
+ * @ep: The endpoint to be wedged.
+ *
+ */
+static int dwc2_gadget_ep_set_wedge(struct usb_ep *ep)
+{
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg *hs = hs_ep->parent;
+
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&hs->lock, flags);
+ hs_ep->wedged = 1;
+ ret = dwc2_hsotg_ep_sethalt(ep, 1, false);
+ spin_unlock_irqrestore(&hs->lock, flags);
+
+ return ret;
+}
+
/**
* dwc2_hsotg_ep_sethalt - set halt on a given endpoint
* @ep: The endpoint to set halt.
@@ -4337,6 +4360,7 @@ static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value, bool now)
epctl |= DXEPCTL_EPDIS;
} else {
epctl &= ~DXEPCTL_STALL;
+ hs_ep->wedged = 0;
xfertype = epctl & DXEPCTL_EPTYPE_MASK;
if (xfertype == DXEPCTL_EPTYPE_BULK ||
xfertype == DXEPCTL_EPTYPE_INTERRUPT)
@@ -4353,6 +4377,7 @@ static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value, bool now)
// STALL bit will be set in GOUTNAKEFF interrupt handler
} else {
epctl &= ~DXEPCTL_STALL;
+ hs_ep->wedged = 0;
xfertype = epctl & DXEPCTL_EPTYPE_MASK;
if (xfertype == DXEPCTL_EPTYPE_BULK ||
xfertype == DXEPCTL_EPTYPE_INTERRUPT)
@@ -4392,6 +4417,7 @@ static const struct usb_ep_ops dwc2_hsotg_ep_ops = {
.queue = dwc2_hsotg_ep_queue_lock,
.dequeue = dwc2_hsotg_ep_dequeue,
.set_halt = dwc2_hsotg_ep_sethalt_lock,
+ .set_wedge = dwc2_gadget_ep_set_wedge,
/* note, don't believe we have any call for the fifo routines */
};
base-commit: 00a738b86ec0c88ad4745f658966f951cbe4c885
--
2.11.0
