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

   1 uint8_t TEMPLATE_FUNC_NAME (void* const 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                 uint8_t USB_DeviceState_LCL = USB_DeviceState;
  12
  13                 if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)
  14                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  15                 else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)
  16                   return ENDPOINT_RWCSTREAM_BusSuspended;
  17                 else if (Endpoint_IsSETUPReceived())
  18                   return ENDPOINT_RWCSTREAM_HostAborted;
  19
  20                 if (Endpoint_IsOUTReceived())
  21                 {
  22                         while (Length && Endpoint_BytesInEndpoint())
  23                         {
  24                                 TEMPLATE_TRANSFER_BYTE(DataStream);
  25                                 TEMPLATE_BUFFER_MOVE(DataStream, 1);
  26                                 Length--;
  27                         }
  28
  29                         Endpoint_ClearOUT();
  30                 }
  31         }
  32
  33         while (!(Endpoint_IsINReady()))
  34         {
  35                 uint8_t USB_DeviceState_LCL = USB_DeviceState;
  36
  37                 if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)
  38                   return ENDPOINT_RWCSTREAM_DeviceDisconnected;
  39                 else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)
  40                   return ENDPOINT_RWCSTREAM_BusSuspended;
  41         }
  42
  43         return ENDPOINT_RWCSTREAM_NoError;
  44 }
  45
  46
  47 #undef TEMPLATE_BUFFER_OFFSET
  48 #undef TEMPLATE_BUFFER_MOVE
  49 #undef TEMPLATE_FUNC_NAME
  50 #undef TEMPLATE_TRANSFER_BYTE