EP0_DATA_PHASE
case EP0_DATA_PHASE:
if (dwc->ep0state != EP0_DATA_PHASE) {
dwc->ep0state = EP0_DATA_PHASE;
case EP0_DATA_PHASE:
if (dwc->ep0state == EP0_DATA_PHASE)
if (dep->number <= 1 && dwc->ep0state != EP0_DATA_PHASE)