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

   1 uint8_t TEMPLATE_FUNC_NAME (void* Buffer,
   2                             uint16_t Length)
   3 {
   4         uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
   5
   6         if (!(Length))
   7           Endpoint_ClearOUT();
   8
   9         while (Length)
  10         {
  11                 if (Endpoint_IsSETUPReceived())
  12                   return ENDPOINT_RWCSTREAM_HostAborted;
  13
  14                 if (USB_DeviceState == DEVICE_STATE_Unattached)
  15                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  16                 else if (USB_DeviceState == DEVICE_STATE_Suspended)
  17                   return ENDPOINT_RWCSTREAM_BusSuspended;
  18
  19                 if (Endpoint_IsOUTReceived())
  20                 {
  21                         while (Length && Endpoint_BytesInEndpoint())
  22                         {
  23                                 TEMPLATE_TRANSFER_BYTE(DataStream);
  24                                 Length--;
  25                         }
  26
  27                         Endpoint_ClearOUT();
  28                 }
  29         }
  30
  31         while (!(Endpoint_IsINReady()))
  32         {
  33                 if (USB_DeviceState == DEVICE_STATE_Unattached)
  34                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  35                 else if (USB_DeviceState == DEVICE_STATE_Suspended)
  36                   return ENDPOINT_RWCSTREAM_BusSuspended;
  37         }
  38
  39         return ENDPOINT_RWCSTREAM_NoError;
  40 }
  41
  42
  43 #undef TEMPLATE_BUFFER_OFFSET
  44 #undef TEMPLATE_FUNC_NAME
  45 #undef TEMPLATE_TRANSFER_BYTE