LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_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         Pipe_SetPipeToken(TEMPLATE_TOKEN);
   9
  10         if ((ErrorCode = Pipe_WaitUntilReady()))
  11           return ErrorCode;
  12
  13         while (Length)
  14         {
  15                 if (!(Pipe_IsReadWriteAllowed()))
  16                 {
  17                         TEMPLATE_CLEAR_PIPE();
  18
  19                         #if !defined(NO_STREAM_CALLBACKS)
  20                         if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
  21                           return PIPE_RWSTREAM_CallbackAborted;
  22                         #endif
  23
  24                         if ((ErrorCode = Pipe_WaitUntilReady()))
  25                           return ErrorCode;
  26                 }
  27                 else
  28                 {
  29                         TEMPLATE_TRANSFER_BYTE(DataStream);
  30                         Length--;
  31                 }
  32         }
  33
  34         return PIPE_RWSTREAM_NoError;
  35 }
  36
  37 #undef TEMPLATE_FUNC_NAME
  38 #undef TEMPLATE_BUFFER_TYPE
  39 #undef TEMPLATE_TOKEN
  40 #undef TEMPLATE_TRANSFER_BYTE
  41 #undef TEMPLATE_CLEAR_PIPE
  42 #undef TEMPLATE_BUFFER_OFFSET
  43