usb: dwc3: gadget: add dwc3_request status tracking (a3af5e3a) · Commits · 戴 / test

drivers/usb/dwc3/core.h

+9 −0

Original line number	Diff line number	Diff line
		@@ -863,6 +863,7 @@ struct dwc3_hwparams {
		* @num_pending_sgs: counter to pending sgs
		* @num_queued_sgs: counter to the number of sgs which already got queued
		* @remaining: amount of data remaining
		* @status: internal dwc3 request status tracking
		* @epnum: endpoint number to which this request refers
		* @trb: pointer to struct dwc3_trb
		* @trb_dma: DMA address of @trb
		@@ -883,6 +884,14 @@ struct dwc3_request {
		unsigned num_pending_sgs;
		unsigned int num_queued_sgs;
		unsigned remaining;

		unsigned int status;
		#define DWC3_REQUEST_STATUS_QUEUED 0
		#define DWC3_REQUEST_STATUS_STARTED 1
		#define DWC3_REQUEST_STATUS_CANCELLED 2
		#define DWC3_REQUEST_STATUS_COMPLETED 3
		#define DWC3_REQUEST_STATUS_UNKNOWN -1

		u8 epnum;
		struct dwc3_trb *trb;
		dma_addr_t trb_dma;

+3 −0

Original line number	Diff line number	Diff line
		@@ -209,6 +209,7 @@ void dwc3_gadget_giveback(struct dwc3_ep dep, struct dwc3_request req,
		struct dwc3 *dwc = dep->dwc;

		dwc3_gadget_del_and_unmap_request(dep, req, status);
		req->status = DWC3_REQUEST_STATUS_COMPLETED;

		spin_unlock(&dwc->lock);
		usb_gadget_giveback_request(&dep->endpoint, &req->request);
		@@ -847,6 +848,7 @@ static struct usb_request dwc3_gadget_ep_alloc_request(struct usb_ep ep,
		req->direction = dep->direction;
		req->epnum = dep->number;
		req->dep = dep;
		req->status = DWC3_REQUEST_STATUS_UNKNOWN;

		trace_dwc3_alloc_request(req);

		@@ -1443,6 +1445,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep dep, struct dwc3_request req)
		trace_dwc3_ep_queue(req);

		list_add_tail(&req->list, &dep->pending_list);
		req->status = DWC3_REQUEST_STATUS_QUEUED;

		/*
		* NOTICE: Isochronous endpoints should NEVER be prestarted. We must

+2 −0

Original line number	Diff line number	Diff line
		@@ -76,6 +76,7 @@ static inline void dwc3_gadget_move_started_request(struct dwc3_request *req)
		struct dwc3_ep *dep = req->dep;

		req->started = true;
		req->status = DWC3_REQUEST_STATUS_STARTED;
		list_move_tail(&req->list, &dep->started_list);
		}

		@@ -91,6 +92,7 @@ static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req)
		struct dwc3_ep *dep = req->dep;

		req->started = false;
		req->status = DWC3_REQUEST_STATUS_CANCELLED;
		list_move_tail(&req->list, &dep->cancelled_list);
		}