int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, gfp_t gfp_flags) { struct dwc3_request *req = to_dwc3_request(request); struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; int ret; if (!dep->desc) { dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n", request, dep->name); ret = -ESHUTDOWN; goto out; } /* we share one TRB for ep0/1 */ if (!list_empty(&dep->request_list)) { ret = -EBUSY; goto out; } dev_vdbg(dwc->dev, "queueing request %p to %s length %d, state '%s'\n", request, dep->name, request->length, dwc3_ep0_state_string(dwc->ep0state)); ret = __dwc3_gadget_ep0_queue(dep, req); out: return ret; }
int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, gfp_t gfp_flags) { struct dwc3_request *req = to_dwc3_request(request); struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; unsigned long flags; int ret; spin_lock_irqsave(&dwc->lock, flags); if (!dep->endpoint.desc) { dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n", dep->name); ret = -ESHUTDOWN; goto out; } /* we share one TRB for ep0/1 */ if (!list_empty(&dep->pending_list)) { ret = -EBUSY; goto out; } ret = __dwc3_gadget_ep0_queue(dep, req); out: spin_unlock_irqrestore(&dwc->lock, flags); return ret; }
int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value) { struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; dwc3_ep0_stall_and_restart(dwc); return 0; }
int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, gfp_t gfp_flags) { struct dwc3_request *req = to_dwc3_request(request); struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; unsigned long flags; int ret; switch (dwc->ep0state) { case EP0_IN_DATA_PHASE: case EP0_IN_WAIT_GADGET: case EP0_IN_WAIT_NRDY: case EP0_IN_STATUS_PHASE: dep = dwc->eps[1]; break; case EP0_OUT_DATA_PHASE: case EP0_OUT_WAIT_GADGET: case EP0_OUT_WAIT_NRDY: case EP0_OUT_STATUS_PHASE: dep = dwc->eps[0]; break; default: return -EINVAL; } spin_lock_irqsave(&dwc->lock, flags); if (!dep->desc) { dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n", request, dep->name); ret = -ESHUTDOWN; goto out; } /* we share one TRB for ep0/1 */ if (!list_empty(&dwc->eps[0]->request_list) || !list_empty(&dwc->eps[1]->request_list) || dwc->ep0_status_pending) { ret = -EBUSY; goto out; } dev_vdbg(dwc->dev, "queueing request %p to %s length %d, state '%s'\n", request, dep->name, request->length, dwc3_ep0_state_string(dwc->ep0state)); ret = __dwc3_gadget_ep0_queue(dep, req); out: spin_unlock_irqrestore(&dwc->lock, flags); return ret; }
int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value) { struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; dbg_event(dep->number, "EP0STAL", value); dwc3_ep0_stall_and_restart(dwc); return 0; }
int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value) { struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; unsigned long flags; int ret; spin_lock_irqsave(&dwc->lock, flags); ret = __dwc3_gadget_ep0_set_halt(ep, value); spin_unlock_irqrestore(&dwc->lock, flags); return ret; }
static void dwc3_ep0_set_sel_cmpl(struct usb_ep *ep, struct usb_request *req) { struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; u32 param = 0; u32 reg; struct timing { u8 u1sel; u8 u1pel; u16 u2sel; u16 u2pel; } __packed timing; int ret; memcpy(&timing, req->buf, sizeof(timing)); dwc->u1sel = timing.u1sel; dwc->u1pel = timing.u1pel; dwc->u2sel = le16_to_cpu(timing.u2sel); dwc->u2pel = le16_to_cpu(timing.u2pel); reg = dwc3_readl(dwc->regs, DWC3_DCTL); if (reg & DWC3_DCTL_INITU2ENA) param = dwc->u2pel; if (reg & DWC3_DCTL_INITU1ENA) param = dwc->u1pel; /* * According to Synopsys Databook, if parameter is * greater than 125, a value of zero should be * programmed in the register. */ if (param > 125) param = 0; /* now that we have the time, issue DGCMD Set Sel */ ret = dwc3_send_gadget_generic_command(dwc, DWC3_DGCMD_SET_PERIODIC_PAR, param); WARN_ON(ret < 0); }
int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, gfp_t gfp_flags) { struct dwc3_request *req = to_dwc3_request(request); struct dwc3_ep *dep = to_dwc3_ep(ep); struct dwc3 *dwc = dep->dwc; unsigned long flags; int ret; spin_lock_irqsave(&dwc->lock, flags); if (!dep->endpoint.desc) { dwc3_trace(trace_dwc3_ep0, "trying to queue request %p to disabled %s", request, dep->name); ret = -ESHUTDOWN; goto out; } /* we share one TRB for ep0/1 */ if (!list_empty(&dep->request_list)) { ret = -EBUSY; goto out; } dwc3_trace(trace_dwc3_ep0, "queueing request %p to %s length %d state '%s'", request, dep->name, request->length, dwc3_ep0_state_string(dwc->ep0state)); ret = __dwc3_gadget_ep0_queue(dep, req); out: spin_unlock_irqrestore(&dwc->lock, flags); return ret; }