Add const keyword to the demo function parameters where possible.

[pub/USBasp.git] / 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 3cebc24..d3f8f55 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/MIDI.c
+++ b/LUFA/Drivers/USB/Class/Device/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


@@ -28,9 +28,11 @@
   this software.\r
 */\r
 \r
   this software.\r
 */\r
 \r

+#define  __INCLUDE_FROM_USB_DRIVER\r

 #include "../../HighLevel/USBMode.h"\r
 #if defined(USB_CAN_BE_DEVICE)\r
 \r
 #include "../../HighLevel/USBMode.h"\r
 #if defined(USB_CAN_BE_DEVICE)\r
 \r

+#define  __INCLUDE_FROM_MIDI_DRIVER\r

 #include "MIDI.h"\r
 \r
 void MIDI_Device_ProcessControlRequest(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)\r
 #include "MIDI.h"\r
 \r
 void MIDI_Device_ProcessControlRequest(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)\r


@@ -65,11 +67,6 @@ bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInter
        return true;\r
 }\r
 \r
        return true;\r
 }\r
 \r

-void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)\r
-{\r
-       (void)MIDIInterfaceInfo;\r
-}\r
-\r

 uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
 {\r
        if (USB_DeviceState != DEVICE_STATE_Configured)\r
 uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
 {\r
        if (USB_DeviceState != DEVICE_STATE_Configured)\r


@@ -84,12 +81,33 @@ 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)\r
                  return ErrorCode;\r
 \r
                if ((ErrorCode = Endpoint_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != ENDPOINT_RWSTREAM_NoError)\r
                  return ErrorCode;\r
 \r

-               Endpoint_ClearIN();\r
+               if (!(Endpoint_IsReadWriteAllowed()))\r
+                 Endpoint_ClearIN();\r

        }\r
        \r
        return ENDPOINT_RWSTREAM_NoError;\r
 }\r
 \r
        }\r
        \r
        return ENDPOINT_RWSTREAM_NoError;\r
 }\r
 \r

+uint8_t MIDI_Device_Flush(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)\r
+{\r
+       if (USB_DeviceState != DEVICE_STATE_Configured)\r
+         return ENDPOINT_RWSTREAM_DeviceDisconnected;\r
+       \r
+       uint8_t ErrorCode;\r
+\r
+       Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpointNumber);\r
+\r
+       if (Endpoint_BytesInEndpoint())\r
+       {\r
+               Endpoint_ClearIN();\r
+\r
+               if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+       }\r
+\r
+       return ENDPOINT_READYWAIT_NoError;\r
+}\r
+\r

 bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
 {\r
        if (USB_DeviceState != DEVICE_STATE_Configured)\r
 bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
 {\r
        if (USB_DeviceState != DEVICE_STATE_Configured)\r


@@ -101,7 +119,9 @@ bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInter
          return false;\r
 \r
        Endpoint_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);\r
          return false;\r
 \r
        Endpoint_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);\r

-       Endpoint_ClearOUT();\r
+       \r
+       if (!(Endpoint_IsReadWriteAllowed()))\r
+         Endpoint_ClearOUT();\r

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