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                 else if (USB_DeviceState == DEVICE_STATE_Suspended)
  16                   return ENDPOINT_RWCSTREAM_BusSuspended;
  17
  18                 if (Endpoint_IsOUTReceived())
  19                 {
  20                         while (Length && Endpoint_BytesInEndpoint())
  21                         {
  22                                 TEMPLATE_TRANSFER_BYTE(DataStream);
  23                                 Length--;
  24                         }
  25
  26                         Endpoint_ClearOUT();
  27                 }
  28         }
  29
  30         while (!(Endpoint_IsINReady()))
  31         {
  32                 if (USB_DeviceState == DEVICE_STATE_Unattached)
  33                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  34                 else if (USB_DeviceState == DEVICE_STATE_Suspended)
  35                   return ENDPOINT_RWCSTREAM_BusSuspended;
  36         }
  37
  38         return ENDPOINT_RWCSTREAM_NoError;
  39 }
  40
  41
  42 #undef TEMPLATE_BUFFER_OFFSET
  43 #undef TEMPLATE_FUNC_NAME
  44 #undef TEMPLATE_TRANSFER_BYTE