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

   1 uint8_t TEMPLATE_FUNC_NAME (TEMPLATE_BUFFER_TYPE Buffer,
   2                             uint16_t Length
   3                             __CALLBACK_PARAM)
   4 {
   5         uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
   6         uint8_t  ErrorCode;
   7
   8         if ((ErrorCode = Endpoint_WaitUntilReady()))
   9           return ErrorCode;
  10
  11         while (Length)
  12         {
  13                 if (!(Endpoint_IsReadWriteAllowed()))
  14                 {
  15                         TEMPLATE_CLEAR_ENDPOINT();
  16
  17                         #if !defined(NO_STREAM_CALLBACKS)
  18                         if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
  19                           return ENDPOINT_RWSTREAM_CallbackAborted;
  20                         #endif
  21
  22                         if ((ErrorCode = Endpoint_WaitUntilReady()))
  23                           return ErrorCode;
  24                 }
  25                 else
  26                 {
  27                         TEMPLATE_TRANSFER_BYTE(DataStream);
  28                         Length--;
  29                 }
  30         }
  31
  32         return ENDPOINT_RWSTREAM_NoError;
  33 }
  34
  35 #undef TEMPLATE_FUNC_NAME
  36 #undef TEMPLATE_BUFFER_TYPE
  37 #undef TEMPLATE_TRANSFER_BYTE
  38 #undef TEMPLATE_CLEAR_ENDPOINT
  39 #undef TEMPLATE_BUFFER_OFFSET