30 static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep);
32 		struct dwc3_ep *dep, struct dwc3_request *req);
55 	struct dwc3_ep			*dep;  in dwc3_ep0_start_trans()  local
59 	dep = dwc->eps[epnum];  in dwc3_ep0_start_trans()
60 	if (dep->flags & DWC3_EP_BUSY) {  in dwc3_ep0_start_trans()
61 		dev_vdbg(dwc->dev, "%s still busy", dep->name);  in dwc3_ep0_start_trans()
65 	trb = &dwc->ep0_trb[dep->free_slot];  in dwc3_ep0_start_trans()
68 		dep->free_slot++;  in dwc3_ep0_start_trans()
94 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,  in dwc3_ep0_start_trans()
97 		dev_dbg(dwc->dev, "%s STARTTRANSFER failed", dep->name);  in dwc3_ep0_start_trans()
101 	dep->flags |= DWC3_EP_BUSY;  in dwc3_ep0_start_trans()
102 	dep->resource_index = dwc3_gadget_ep_get_transfer_index(dwc,  in dwc3_ep0_start_trans()
103 			dep->number);  in dwc3_ep0_start_trans()
110 static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,  in __dwc3_gadget_ep0_queue()  argument
113 	struct dwc3		*dwc = dep->dwc;  in __dwc3_gadget_ep0_queue()
117 	req->epnum		= dep->number;  in __dwc3_gadget_ep0_queue()
119 	list_add_tail(&req->list, &dep->request_list);  in __dwc3_gadget_ep0_queue()
130 	if (dep->flags & DWC3_EP_PENDING_REQUEST) {  in __dwc3_gadget_ep0_queue()
133 		direction = !!(dep->flags & DWC3_EP0_DIR_IN);  in __dwc3_gadget_ep0_queue()
142 		dep->flags &= ~(DWC3_EP_PENDING_REQUEST |  in __dwc3_gadget_ep0_queue()
207 		dep->flags &= ~DWC3_EP0_DIR_IN;  in __dwc3_gadget_ep0_queue()
217 	struct dwc3_ep			*dep = to_dwc3_ep(ep);  in dwc3_gadget_ep0_queue()  local
218 	struct dwc3			*dwc = dep->dwc;  in dwc3_gadget_ep0_queue()
225 	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()
239 			request, dep->name, request->length,  in dwc3_gadget_ep0_queue()
242 	ret = __dwc3_gadget_ep0_queue(dep, req);  in dwc3_gadget_ep0_queue()
252 	struct dwc3_ep		*dep;  in dwc3_ep0_stall_and_restart()  local
255 	dep = dwc->eps[1];  in dwc3_ep0_stall_and_restart()
256 	dep->flags = DWC3_EP_ENABLED;  in dwc3_ep0_stall_and_restart()
259 	dep = dwc->eps[0];  in dwc3_ep0_stall_and_restart()
260 	__dwc3_gadget_ep_set_halt(dep, 1, false);  in dwc3_ep0_stall_and_restart()
261 	dep->flags = DWC3_EP_ENABLED;  in dwc3_ep0_stall_and_restart()
264 	if (!list_empty(&dep->request_list)) {  in dwc3_ep0_stall_and_restart()
267 		req = next_request(&dep->request_list);  in dwc3_ep0_stall_and_restart()
268 		dwc3_gadget_giveback(dep, req, -ECONNRESET);  in dwc3_ep0_stall_and_restart()
277 	struct dwc3_ep			*dep = to_dwc3_ep(ep);  in __dwc3_gadget_ep0_set_halt()  local
278 	struct dwc3			*dwc = dep->dwc;  in __dwc3_gadget_ep0_set_halt()
308 	struct dwc3_ep		*dep;  in dwc3_wIndex_to_dep()  local
316 	dep = dwc->eps[epnum];  in dwc3_wIndex_to_dep()
317 	if (dep->flags & DWC3_EP_ENABLED)  in dwc3_wIndex_to_dep()
318 		return dep;  in dwc3_wIndex_to_dep()
332 	struct dwc3_ep		*dep;  in dwc3_ep0_handle_status()  local
364 		dep = dwc3_wIndex_to_dep(dwc, ctrl->wIndex);  in dwc3_ep0_handle_status()
365 		if (!dep)  in dwc3_ep0_handle_status()
368 		if (dep->flags & DWC3_EP_STALL)  in dwc3_ep0_handle_status()
378 	dep = dwc->eps[0];  in dwc3_ep0_handle_status()
379 	dwc->ep0_usb_req.dep = dep;  in dwc3_ep0_handle_status()
384 	return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);  in dwc3_ep0_handle_status()
390 	struct dwc3_ep		*dep;  in dwc3_ep0_handle_feature()  local
476 			dep = dwc3_wIndex_to_dep(dwc, wIndex);  in dwc3_ep0_handle_feature()
477 			if (!dep)  in dwc3_ep0_handle_feature()
479 			if (set == 0 && (dep->flags & DWC3_EP_WEDGE))  in dwc3_ep0_handle_feature()
481 			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
663 	dep = dwc->eps[0];  in dwc3_ep0_set_sel()
664 	dwc->ep0_usb_req.dep = dep;  in dwc3_ep0_set_sel()
665 	dwc->ep0_usb_req.request.length = dep->endpoint.maxpacket;  in dwc3_ep0_set_sel()
669 	return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);  in dwc3_ep0_set_sel()
870 	struct dwc3_ep		*dep;  in dwc3_ep0_complete_status()  local
874 	dep = dwc->eps[0];  in dwc3_ep0_complete_status()
877 	if (!list_empty(&dep->request_list)) {  in dwc3_ep0_complete_status()
878 		r = next_request(&dep->request_list);  in dwc3_ep0_complete_status()
880 		dwc3_gadget_giveback(dep, r, 0);  in dwc3_ep0_complete_status()
906 	struct dwc3_ep		*dep = dwc->eps[event->endpoint_number];  in dwc3_ep0_xfer_complete()  local
908 	dep->flags &= ~DWC3_EP_BUSY;  in dwc3_ep0_xfer_complete()
909 	dep->resource_index = 0;  in dwc3_ep0_xfer_complete()
933 		struct dwc3_ep *dep, struct dwc3_request *req)  in __dwc3_ep0_do_control_data()  argument
937 	req->direction = !!dep->number;  in __dwc3_ep0_do_control_data()
940 		ret = dwc3_ep0_start_trans(dwc, dep->number,  in __dwc3_ep0_do_control_data()
943 	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket) &&  in __dwc3_ep0_do_control_data()
944 			(dep->number == 0)) {  in __dwc3_ep0_do_control_data()
949 				dep->number);  in __dwc3_ep0_do_control_data()
955 		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()
975 		ret = dwc3_ep0_start_trans(dwc, dep->number,  in __dwc3_ep0_do_control_data()
980 				dep->number);  in __dwc3_ep0_do_control_data()
986 		ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,  in __dwc3_ep0_do_control_data()
994 static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)  in dwc3_ep0_start_control_status()  argument
996 	struct dwc3		*dwc = dep->dwc;  in dwc3_ep0_start_control_status()
1002 	return dwc3_ep0_start_trans(dwc, dep->number,  in dwc3_ep0_start_control_status()
1006 static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)  in __dwc3_ep0_do_control_status()  argument
1014 	WARN_ON(dwc3_ep0_start_control_status(dep));  in __dwc3_ep0_do_control_status()
1020 	struct dwc3_ep		*dep = dwc->eps[event->endpoint_number];  in dwc3_ep0_do_control_status()  local
1022 	__dwc3_ep0_do_control_status(dwc, dep);  in dwc3_ep0_do_control_status()
1025 static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)  in dwc3_ep0_end_control_data()  argument
1031 	if (!dep->resource_index)  in dwc3_ep0_end_control_data()
1036 	cmd |= DWC3_DEPCMD_PARAM(dep->resource_index);  in dwc3_ep0_end_control_data()
1038 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, &params);  in dwc3_ep0_end_control_data()
1040 	dep->resource_index = 0;  in dwc3_ep0_end_control_data()
1062 			struct dwc3_ep	*dep = dwc->eps[dwc->ep0_expect_in];  in dwc3_ep0_xfernotready()  local
1065 			dwc3_ep0_end_control_data(dwc, dep);  in dwc3_ep0_xfernotready()