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[pub/USBasp.git] / LUFA / Drivers / USB / Class / Host / MIDI.c

diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.c b/LUFA/Drivers/USB/Class/Host/MIDI.c
index e79d121..a5ad4bf 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/MIDI.c
+++ b/LUFA/Drivers/USB/Class/Host/MIDI.c
@@ -1,13 +1,13 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r

 \r
   Permission to use, copy, modify, distribute, and sell this \r
   software and its documentation for any purpose is hereby granted\r
 \r
   Permission to use, copy, modify, distribute, and sell this \r
   software and its documentation for any purpose is hereby granted\r


@@ -122,9 +122,24 @@ static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const Current
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r

-void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo)\r
+uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo)\r

 {\r
 {\r

-       (void)MIDIInterfaceInfo;\r
+       if (USB_HostState != HOST_STATE_Configured)\r
+         return PIPE_RWSTREAM_DeviceDisconnected;\r
+       \r
+       uint8_t ErrorCode;\r
+\r
+       Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);\r
+\r
+       if (Pipe_BytesInPipe())\r
+       {\r
+               Pipe_ClearOUT();\r
+\r
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+       }\r
+\r
+       return PIPE_READYWAIT_NoError;\r

 }\r
 \r
 uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
 }\r
 \r
 uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r


@@ -141,7 +156,8 @@ uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterface
                if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)\r
                  return ErrorCode;\r
 \r
                if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)\r
                  return ErrorCode;\r
 \r

-               Pipe_ClearOUT();\r
+               if (!(Pipe_IsReadWriteAllowed()))\r
+                 Pipe_ClearOUT();\r

        }\r
        \r
        return PIPE_RWSTREAM_NoError;\r
        }\r
        \r
        return PIPE_RWSTREAM_NoError;\r


@@ -158,7 +174,9 @@ bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterface
          return false;\r
 \r
        Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);\r
          return false;\r
 \r
        Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);\r

-       Pipe_ClearIN();\r
+\r
+       if (!(Pipe_IsReadWriteAllowed()))\r
+         Pipe_ClearIN();\r

        \r
        return true;\r
 }\r
        \r
        return true;\r
 }\r