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Added support to the MIDI Class drivers for packed data, where multiple MIDI events are packed into a single USB packet. Added new MIDI Class driver flush routines to override packing behaviour.

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This commit is contained in:
Dean Camera 2010-01-05 13:52:34 +00:00
parent 60e9641222
commit d97db1120b
13 changed files with 113 additions and 14 deletions
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27
LUFA/Drivers/USB/Class/Device/MIDI.c
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@ -79,12 +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)
@ -96,7 +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;
}