void USBD_DataInStage (void) {
U32 cnt;
if (USBD_EP0Data.Count > usbd_max_packet0) {
cnt = usbd_max_packet0;
} else {
cnt = USBD_EP0Data.Count;
}
if (!cnt) USBD_ZLP = 0;
cnt = USBD_WriteEP(0x80, USBD_EP0Data.pData, cnt);
USBD_EP0Data.pData += cnt;
USBD_EP0Data.Count -= cnt;
}
// ---------------------------------------------------------------------------
// Transmit buffer when handling data endpoint IN event (Tx -> Host IN)
static ErrorCode_t USB_EP_In_Handler(USBD_HANDLE_T hUsb, void* data, UINT32 event)
{
// Exit if not an IN event
if (event != USB_EVT_IN) return RET_UNHANDLED;
int epNum = (int)data;
int core = USB_CORE(hUsb);
// Exit if buffer empty
if (ep_in_count[core] == 0) return RET_UNHANDLED;
// Send buffer
USBD_WriteEP(hUsb, USB_ENDPOINT_IN(epNum), ep_in_data[core], ep_in_count[core]);
ep_in_count[core] = 0;
return RET_OK;
}
void USBD_StatusInStage (void) {
USBD_WriteEP(0x80, NULL, 0);
}
