From 8266b08ed90cd9091dd8e3f37a740a409454e454 Mon Sep 17 00:00:00 2001 From: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Date: Thu, 30 Jul 2020 16:29:03 -0700 Subject: [PATCH] usb: dwc3: gadget: Refactor ep command completion Refactor END_TRANSFER command completion handling and move it outside of the switch statement to its own function. This makes it cleaner and consistent with other event handler functions. No functional change here. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> --- drivers/usb/dwc3/gadget.c | 71 +++++++++++++++++++++------------------ 1 file changed, 38 insertions(+), 33 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 4c7b6cceeafd..b2dfb3ada700 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2908,6 +2908,43 @@ static void dwc3_gadget_endpoint_transfer_not_ready(struct dwc3_ep *dep, (void) __dwc3_gadget_start_isoc(dep); } +static void dwc3_gadget_endpoint_command_complete(struct dwc3_ep *dep, + const struct dwc3_event_depevt *event) +{ + u8 cmd = DEPEVT_PARAMETER_CMD(event->parameters); + + if (cmd != DWC3_DEPCMD_ENDTRANSFER) + return; + + dep->flags &= ~DWC3_EP_END_TRANSFER_PENDING; + dep->flags &= ~DWC3_EP_TRANSFER_STARTED; + dwc3_gadget_ep_cleanup_cancelled_requests(dep); + + if (dep->flags & DWC3_EP_PENDING_CLEAR_STALL) { + struct dwc3 *dwc = dep->dwc; + + dep->flags &= ~DWC3_EP_PENDING_CLEAR_STALL; + if (dwc3_send_clear_stall_ep_cmd(dep)) { + struct usb_ep *ep0 = &dwc->eps[0]->endpoint; + + dev_err(dwc->dev, "failed to clear STALL on %s\n", dep->name); + if (dwc->delayed_status) + __dwc3_gadget_ep0_set_halt(ep0, 1); + return; + } + + dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE); + if (dwc->delayed_status) + dwc3_ep0_send_delayed_status(dwc); + } + + if ((dep->flags & DWC3_EP_DELAY_START) && + !usb_endpoint_xfer_isoc(dep->endpoint.desc)) + __dwc3_gadget_kick_transfer(dep); + + dep->flags &= ~DWC3_EP_DELAY_START; +} + static void dwc3_gadget_endpoint_stream_event(struct dwc3_ep *dep, const struct dwc3_event_depevt *event) { @@ -2977,7 +3014,6 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, { struct dwc3_ep *dep; u8 epnum = event->endpoint_number; - u8 cmd; dep = dwc->eps[epnum]; @@ -3003,38 +3039,7 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, dwc3_gadget_endpoint_transfer_not_ready(dep, event); break; case DWC3_DEPEVT_EPCMDCMPLT: - cmd = DEPEVT_PARAMETER_CMD(event->parameters); - - if (cmd == DWC3_DEPCMD_ENDTRANSFER) { - dep->flags &= ~DWC3_EP_END_TRANSFER_PENDING; - dep->flags &= ~DWC3_EP_TRANSFER_STARTED; - dwc3_gadget_ep_cleanup_cancelled_requests(dep); - - if (dep->flags & DWC3_EP_PENDING_CLEAR_STALL) { - struct dwc3 *dwc = dep->dwc; - - dep->flags &= ~DWC3_EP_PENDING_CLEAR_STALL; - if (dwc3_send_clear_stall_ep_cmd(dep)) { - struct usb_ep *ep0 = &dwc->eps[0]->endpoint; - - dev_err(dwc->dev, "failed to clear STALL on %s\n", - dep->name); - if (dwc->delayed_status) - __dwc3_gadget_ep0_set_halt(ep0, 1); - return; - } - - dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE); - if (dwc->delayed_status) - dwc3_ep0_send_delayed_status(dwc); - } - - if ((dep->flags & DWC3_EP_DELAY_START) && - !usb_endpoint_xfer_isoc(dep->endpoint.desc)) - __dwc3_gadget_kick_transfer(dep); - - dep->flags &= ~DWC3_EP_DELAY_START; - } + dwc3_gadget_endpoint_command_complete(dep, event); break; case DWC3_DEPEVT_XFERCOMPLETE: dwc3_gadget_endpoint_transfer_complete(dep, event); -- 2.30.9