X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/f7ab433c67b86723385ec05ee9c7b96dd18e6dde..d11ed10c5314c44dc01c06954d1d73d4894cbff8:/LUFA/Drivers/USB/Class/Device/MIDI.c

diff --git a/LUFA/Drivers/USB/Class/Device/MIDI.c b/LUFA/Drivers/USB/Class/Device/MIDI.c
index 2685ab0ae..b72c2b027 100644
--- a/LUFA/Drivers/USB/Class/Device/MIDI.c
+++ b/LUFA/Drivers/USB/Class/Device/MIDI.c
@@ -1,21 +1,21 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2009.
+     Copyright (C) Dean Camera, 2010.
               
   dean [at] fourwalledcubicle [dot] com
       www.fourwalledcubicle.com
 */
 
 /*
-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
-  Permission to use, copy, modify, and distribute this software
-  and its documentation for any purpose and without fee is hereby
-  granted, provided that the above copyright notice appear in all
-  copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting
-  documentation, and that the name of the author not be used in
-  advertising or publicity pertaining to distribution of the
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
@@ -65,15 +65,10 @@ bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInter
 	return true;
 }
 
-void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
-{
-
-}
-
 uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)
 {
 	if (USB_DeviceState != DEVICE_STATE_Configured)
-	  return ENDPOINT_RWSTREAM_NoError;
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
 	
 	Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpointNumber);
 
@@ -84,12 +79,33 @@ uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInter
 		if ((ErrorCode = Endpoint_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != ENDPOINT_RWSTREAM_NoError)
 		  return ErrorCode;
 
-		Endpoint_ClearIN();
+		if (!(Endpoint_IsReadWriteAllowed()))
+		  Endpoint_ClearIN();
 	}
 	
 	return ENDPOINT_RWSTREAM_NoError;
 }
 
+uint8_t MIDI_Device_Flush(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
+{
+	if (USB_DeviceState != DEVICE_STATE_Configured)
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+	
+	uint8_t ErrorCode;
+
+	Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpointNumber);
+
+	if (Endpoint_BytesInEndpoint())
+	{
+		Endpoint_ClearIN();
+
+		if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+		  return ErrorCode;
+	}
+
+	return ENDPOINT_READYWAIT_NoError;
+}
+
 bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)
 {
 	if (USB_DeviceState != DEVICE_STATE_Configured)
@@ -101,7 +117,9 @@ bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInter
 	  return false;
 
 	Endpoint_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);
-	Endpoint_ClearOUT();
+	
+	if (!(Endpoint_IsReadWriteAllowed()))
+	  Endpoint_ClearOUT();
 	
 	return true;
 }