LUFA/Drivers/USB/LowLevel/Template/Template_Endpoint_Control_R.c

   1 uint8_t TEMPLATE_FUNC_NAME (void* Buffer, uint16_t Length)
   2 {
   3         uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
   4
   5         if (!(Length))
   6           Endpoint_ClearOUT();
   7
   8         while (Length)
   9         {
  10                 if (Endpoint_IsSETUPReceived())
  11                   return ENDPOINT_RWCSTREAM_HostAborted;
  12
  13                 if (USB_DeviceState == DEVICE_STATE_Unattached)
  14                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  15
  16                 if (Endpoint_IsOUTReceived())
  17                 {
  18                         while (Length && Endpoint_BytesInEndpoint())
  19                         {
  20                                 TEMPLATE_TRANSFER_BYTE(DataStream);
  21                                 Length--;
  22                         }
  23
  24                         Endpoint_ClearOUT();
  25                 }
  26         }
  27
  28         while (!(Endpoint_IsINReady()))
  29         {
  30                 if (USB_DeviceState == DEVICE_STATE_Unattached)
  31                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  32         }
  33
  34         return ENDPOINT_RWCSTREAM_NoError;
  35 }
  36
  37
  38 #undef TEMPLATE_BUFFER_OFFSET
  39 #undef TEMPLATE_FUNC_NAME
  40 #undef TEMPLATE_TRANSFER_BYTE