126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/*
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LUFA Library
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Copyright (C) Dean Camera, 2012.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#define __INCLUDE_FROM_USB_DRIVER
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#include "../../Core/USBMode.h"
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#if defined(USB_CAN_BE_DEVICE)
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#define __INCLUDE_FROM_MIDI_DRIVER
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#define __INCLUDE_FROM_MIDI_DEVICE_C
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#include "MIDIClassDevice.h"
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bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
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{
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memset(&MIDIInterfaceInfo->State, 0x00, sizeof(MIDIInterfaceInfo->State));
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MIDIInterfaceInfo->Config.DataINEndpoint.Type = EP_TYPE_BULK;
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MIDIInterfaceInfo->Config.DataOUTEndpoint.Type = EP_TYPE_BULK;
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if (!(Endpoint_ConfigureEndpointTable(&MIDIInterfaceInfo->Config.DataINEndpoint, 1)))
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return false;
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if (!(Endpoint_ConfigureEndpointTable(&MIDIInterfaceInfo->Config.DataOUTEndpoint, 1)))
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return false;
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return true;
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}
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void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
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{
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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#if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
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MIDI_Device_Flush(MIDIInterfaceInfo);
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#endif
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}
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uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
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const MIDI_EventPacket_t* const Event)
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{
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return ENDPOINT_RWSTREAM_DeviceDisconnected;
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uint8_t ErrorCode;
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Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpoint.Address);
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if ((ErrorCode = Endpoint_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL)) != ENDPOINT_RWSTREAM_NoError)
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return ErrorCode;
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if (!(Endpoint_IsReadWriteAllowed()))
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Endpoint_ClearIN();
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return ENDPOINT_RWSTREAM_NoError;
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}
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uint8_t MIDI_Device_Flush(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
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{
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return ENDPOINT_RWSTREAM_DeviceDisconnected;
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uint8_t ErrorCode;
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Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpoint.Address);
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if (Endpoint_BytesInEndpoint())
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{
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Endpoint_ClearIN();
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if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
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return ErrorCode;
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}
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return ENDPOINT_READYWAIT_NoError;
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}
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bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
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MIDI_EventPacket_t* const Event)
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{
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return false;
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Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataOUTEndpoint.Address);
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if (!(Endpoint_IsReadWriteAllowed()))
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return false;
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Endpoint_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL);
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if (!(Endpoint_IsReadWriteAllowed()))
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Endpoint_ClearOUT();
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return true;
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}
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#endif
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