static void dwc3_ep0_complete_data(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct dwc3_request *r = NULL;
struct usb_request *ur;
struct dwc3_trb trb;
struct dwc3_ep *dep;
u32 transferred;
u8 epnum;
epnum = event->endpoint_number;
dep = dwc->eps[epnum];
dwc->ep0_next_event = DWC3_EP0_NRDY_STATUS;
if (!dwc->ep0_status_pending) {
r = next_request(&dwc->eps[0]->request_list);
ur = &r->request;
} else {
ur = &dwc->ep0_usb_req;
dwc->ep0_status_pending = 0;
}
dwc3_trb_to_nat(dwc->ep0_trb, &trb);
if (dwc->ep0_bounced) {
struct dwc3_ep *ep0 = dwc->eps[0];
transferred = min_t(u32, ur->length,
ep0->endpoint.maxpacket - trb.length);
memcpy(ur->buf, dwc->ep0_bounce, transferred);
dwc->ep0_bounced = false;
} else {
transferred = ur->length - trb.length;
}
ur->actual += transferred;
if ((epnum & 1) && ur->actual < ur->length) {
/* for some reason we did not get everything out */
dwc3_ep0_stall_and_restart(dwc);
} else {
/*
* handle the case where we have to send a zero packet. This
* seems to be case when req.length > maxpacket. Could it be?
*/
if (r)
dwc3_gadget_giveback(dep, r, 0);
}
}
static void dwc3_ep0_complete_data(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct dwc3_request *r = NULL;
struct usb_request *ur;
struct dwc3_trb trb;
struct dwc3_ep *dep;
u32 transfered;
u8 epnum;
epnum = event->endpoint_number;
dep = dwc->eps[epnum];
if (!dwc->ep0_status_pending) {
r = next_request(&dep->request_list);
ur = &r->request;
} else {
ur = &dwc->ep0_usb_req;
dwc->ep0_status_pending = 0;
}
dwc3_trb_to_nat(dwc->ep0_trb, &trb);
transfered = ur->length - trb.length;
ur->actual += transfered;
if ((epnum & 1) && ur->actual < ur->length) {
/* for some reason we did not get everything out */
dwc3_ep0_stall_and_restart(dwc);
dwc3_gadget_giveback(dep, r, -ECONNRESET);
} else {
/*
* handle the case where we have to send a zero packet. This
* seems to be case when req.length > maxpacket. Could it be?
*/
/* The transfer is complete, wait for HOST */
if (epnum & 1)
dwc->ep0state = EP0_IN_WAIT_NRDY;
else
dwc->ep0state = EP0_OUT_WAIT_NRDY;
if (r)
dwc3_gadget_giveback(dep, r, 0);
}
}
