提交 b5d335e5 编写于 作者: F Felipe Balbi

usb: dwc3: ep0: fix setup_packet_pending initialization

It just ocurred to me that dwc3 already gives a
really hint of when a setup packet is pending and
that's the SETUP_PENDING TRB Status for EP0 IRQs.

Fix setup_packet_pending initialization based on
that. While at that, also make sure the comment in
gadget.c matches what code is doing.
Signed-off-by: NFelipe Balbi <balbi@ti.com>
上级 ac7bdcc1
......@@ -817,6 +817,8 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING) {
dwc->setup_packet_pending = true;
dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
if (r)
......@@ -916,8 +918,10 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
}
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING)
if (status == DWC3_TRBSTS_SETUP_PENDING) {
dwc->setup_packet_pending = true;
dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
}
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
......@@ -1063,8 +1067,6 @@ static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
dwc->setup_packet_pending = true;
switch (event->status) {
case DEPEVT_STATUS_CONTROL_DATA:
dwc3_trace(trace_dwc3_ep0, "Control Data");
......
......@@ -2230,8 +2230,8 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
*
* Our suggested workaround is to follow the Disconnect
* Event steps here, instead, based on a setup_packet_pending
* flag. Such flag gets set whenever we have a XferNotReady
* event on EP0 and gets cleared on XferComplete for the
* flag. Such flag gets set whenever we have a SETUP_PENDING
* status for EP0 TRBs and gets cleared on XferComplete for the
* same endpoint.
*
* Refers to:
......
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