38 static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep);
40 		struct dwc3_ep *dep, struct dwc3_request *req);
63 	struct dwc3_ep			*dep;  in dwc3_ep0_start_trans()  local
67 	dep = dwc->eps[epnum];  in dwc3_ep0_start_trans()
68 	if (dep->flags & DWC3_EP_BUSY) {  in dwc3_ep0_start_trans()
69 		dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);  in dwc3_ep0_start_trans()
89 	trace_dwc3_prepare_trb(dep, trb);  in dwc3_ep0_start_trans()
91 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,  in dwc3_ep0_start_trans()
95 				dep->name);  in dwc3_ep0_start_trans()
99 	dep->flags |= DWC3_EP_BUSY;  in dwc3_ep0_start_trans()
100 	dep->resource_index = dwc3_gadget_ep_get_transfer_index(dwc,  in dwc3_ep0_start_trans()
101 			dep->number);  in dwc3_ep0_start_trans()
108 static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,  in __dwc3_gadget_ep0_queue()  argument
111 	struct dwc3		*dwc = dep->dwc;  in __dwc3_gadget_ep0_queue()
115 	req->epnum		= dep->number;  in __dwc3_gadget_ep0_queue()
117 	list_add_tail(&req->list, &dep->request_list);  in __dwc3_gadget_ep0_queue()
128 	if (dep->flags & DWC3_EP_PENDING_REQUEST) {  in __dwc3_gadget_ep0_queue()
131 		direction = !!(dep->flags & DWC3_EP0_DIR_IN);  in __dwc3_gadget_ep0_queue()
140 		dep->flags &= ~(DWC3_EP_PENDING_REQUEST |  in __dwc3_gadget_ep0_queue()
206 		dep->flags &= ~DWC3_EP0_DIR_IN;  in __dwc3_gadget_ep0_queue()
216 	struct dwc3_ep			*dep = to_dwc3_ep(ep);  in dwc3_gadget_ep0_queue()  local
217 	struct dwc3			*dwc = dep->dwc;  in dwc3_gadget_ep0_queue()
224 	if (!dep->endpoint.desc) {  in dwc3_gadget_ep0_queue()
227 				request, dep->name);  in dwc3_gadget_ep0_queue()
233 	if (!list_empty(&dep->request_list)) {  in dwc3_gadget_ep0_queue()
240 			request, dep->name, request->length,  in dwc3_gadget_ep0_queue()
243 	ret = __dwc3_gadget_ep0_queue(dep, req);  in dwc3_gadget_ep0_queue()
253 	struct dwc3_ep		*dep;  in dwc3_ep0_stall_and_restart()  local
256 	dep = dwc->eps[1];  in dwc3_ep0_stall_and_restart()
257 	dep->flags = DWC3_EP_ENABLED;  in dwc3_ep0_stall_and_restart()
260 	dep = dwc->eps[0];  in dwc3_ep0_stall_and_restart()
261 	__dwc3_gadget_ep_set_halt(dep, 1, false);  in dwc3_ep0_stall_and_restart()
262 	dep->flags = DWC3_EP_ENABLED;  in dwc3_ep0_stall_and_restart()
265 	if (!list_empty(&dep->request_list)) {  in dwc3_ep0_stall_and_restart()
268 		req = next_request(&dep->request_list);  in dwc3_ep0_stall_and_restart()
269 		dwc3_gadget_giveback(dep, req, -ECONNRESET);  in dwc3_ep0_stall_and_restart()
278 	struct dwc3_ep			*dep = to_dwc3_ep(ep);  in __dwc3_gadget_ep0_set_halt()  local
279 	struct dwc3			*dwc = dep->dwc;  in __dwc3_gadget_ep0_set_halt()
288 	struct dwc3_ep			*dep = to_dwc3_ep(ep);  in dwc3_gadget_ep0_set_halt()  local
289 	struct dwc3			*dwc = dep->dwc;  in dwc3_gadget_ep0_set_halt()
311 	struct dwc3_ep		*dep;  in dwc3_wIndex_to_dep()  local
319 	dep = dwc->eps[epnum];  in dwc3_wIndex_to_dep()
320 	if (dep->flags & DWC3_EP_ENABLED)  in dwc3_wIndex_to_dep()
321 		return dep;  in dwc3_wIndex_to_dep()
335 	struct dwc3_ep		*dep;  in dwc3_ep0_handle_status()  local
367 		dep = dwc3_wIndex_to_dep(dwc, ctrl->wIndex);  in dwc3_ep0_handle_status()
368 		if (!dep)  in dwc3_ep0_handle_status()
371 		if (dep->flags & DWC3_EP_STALL)  in dwc3_ep0_handle_status()
381 	dep = dwc->eps[0];  in dwc3_ep0_handle_status()
382 	dwc->ep0_usb_req.dep = dep;  in dwc3_ep0_handle_status()
387 	return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);  in dwc3_ep0_handle_status()
393 	struct dwc3_ep		*dep;  in dwc3_ep0_handle_feature()  local
479 			dep = dwc3_wIndex_to_dep(dwc, wIndex);  in dwc3_ep0_handle_feature()
480 			if (!dep)  in dwc3_ep0_handle_feature()
482 			if (set == 0 && (dep->flags & DWC3_EP_WEDGE))  in dwc3_ep0_handle_feature()
484 			ret = __dwc3_gadget_ep_set_halt(dep, set, true);  in dwc3_ep0_handle_feature()
596 	struct dwc3_ep	*dep = to_dwc3_ep(ep);  in dwc3_ep0_set_sel_cmpl()  local
597 	struct dwc3	*dwc = dep->dwc;  in dwc3_ep0_set_sel_cmpl()
640 	struct dwc3_ep	*dep;  in dwc3_ep0_set_sel()  local
665 	dep = dwc->eps[0];  in dwc3_ep0_set_sel()
666 	dwc->ep0_usb_req.dep = dep;  in dwc3_ep0_set_sel()
667 	dwc->ep0_usb_req.request.length = dep->endpoint.maxpacket;  in dwc3_ep0_set_sel()
671 	return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);  in dwc3_ep0_set_sel()
857 	struct dwc3_ep		*dep;  in dwc3_ep0_complete_status()  local
861 	dep = dwc->eps[0];  in dwc3_ep0_complete_status()
864 	trace_dwc3_complete_trb(dep, trb);  in dwc3_ep0_complete_status()
866 	if (!list_empty(&dep->request_list)) {  in dwc3_ep0_complete_status()
867 		r = next_request(&dep->request_list);  in dwc3_ep0_complete_status()
869 		dwc3_gadget_giveback(dep, r, 0);  in dwc3_ep0_complete_status()
895 	struct dwc3_ep		*dep = dwc->eps[event->endpoint_number];  in dwc3_ep0_xfer_complete()  local
897 	dep->flags &= ~DWC3_EP_BUSY;  in dwc3_ep0_xfer_complete()
898 	dep->resource_index = 0;  in dwc3_ep0_xfer_complete()
922 		struct dwc3_ep *dep, struct dwc3_request *req)  in __dwc3_ep0_do_control_data()  argument
926 	req->direction = !!dep->number;  in __dwc3_ep0_do_control_data()
929 		ret = dwc3_ep0_start_trans(dwc, dep->number,  in __dwc3_ep0_do_control_data()
932 	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)  in __dwc3_ep0_do_control_data()
933 			&& (dep->number == 0)) {  in __dwc3_ep0_do_control_data()
938 				dep->number);  in __dwc3_ep0_do_control_data()
944 		maxpacket = dep->endpoint.maxpacket;  in __dwc3_ep0_do_control_data()
959 		ret = dwc3_ep0_start_trans(dwc, dep->number,  in __dwc3_ep0_do_control_data()
964 				dep->number);  in __dwc3_ep0_do_control_data()
970 		ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,  in __dwc3_ep0_do_control_data()
977 static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)  in dwc3_ep0_start_control_status()  argument
979 	struct dwc3		*dwc = dep->dwc;  in dwc3_ep0_start_control_status()
985 	return dwc3_ep0_start_trans(dwc, dep->number,  in dwc3_ep0_start_control_status()
989 static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)  in __dwc3_ep0_do_control_status()  argument
997 	WARN_ON(dwc3_ep0_start_control_status(dep));  in __dwc3_ep0_do_control_status()
1003 	struct dwc3_ep		*dep = dwc->eps[event->endpoint_number];  in dwc3_ep0_do_control_status()  local
1005 	__dwc3_ep0_do_control_status(dwc, dep);  in dwc3_ep0_do_control_status()
1008 static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)  in dwc3_ep0_end_control_data()  argument
1014 	if (!dep->resource_index)  in dwc3_ep0_end_control_data()
1019 	cmd |= DWC3_DEPCMD_PARAM(dep->resource_index);  in dwc3_ep0_end_control_data()
1021 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, &params);  in dwc3_ep0_end_control_data()
1023 	dep->resource_index = 0;  in dwc3_ep0_end_control_data()
1045 			struct dwc3_ep	*dep = dwc->eps[dwc->ep0_expect_in];  in dwc3_ep0_xfernotready()  local
1049 			dwc3_ep0_end_control_data(dwc, dep);  in dwc3_ep0_xfernotready()