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105 lines
3.3 KiB
105 lines
3.3 KiB
16 years ago
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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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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#include "MIDI.h"
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bool USB_MIDI_ConfigureEndpoints(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo)
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{
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if (MIDIInterfaceInfo->DataINEndpointNumber)
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{
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if (!(Endpoint_ConfigureEndpoint(MIDIInterfaceInfo->DataINEndpointNumber, EP_TYPE_BULK,
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ENDPOINT_DIR_IN, MIDIInterfaceInfo->DataINEndpointSize,
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ENDPOINT_BANK_SINGLE)))
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{
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return false;
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}
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}
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if (MIDIInterfaceInfo->DataOUTEndpointNumber)
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{
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if (!(Endpoint_ConfigureEndpoint(MIDIInterfaceInfo->DataOUTEndpointNumber, EP_TYPE_BULK,
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ENDPOINT_DIR_OUT, MIDIInterfaceInfo->DataOUTEndpointSize,
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ENDPOINT_BANK_SINGLE)))
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{
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return false;
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}
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}
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return true;
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}
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void USB_MIDI_SendNoteChange(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo, const uint8_t Pitch, const bool OnOff,
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const uint8_t CableID, const uint8_t Channel)
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{
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if (!(USB_IsConnected))
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return;
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Endpoint_SelectEndpoint(MIDIInterfaceInfo->DataINEndpointNumber);
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while (!(Endpoint_IsReadWriteAllowed()));
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uint8_t Command = ((OnOff)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
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Endpoint_Write_Byte((CableID << 4) | (Command >> 4));
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Endpoint_Write_Byte(Command | Channel);
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Endpoint_Write_Byte(Pitch);
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Endpoint_Write_Byte(MIDI_STANDARD_VELOCITY);
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Endpoint_ClearIN();
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}
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void USB_MIDI_SendEventPacket(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo, USB_MIDI_EventPacket_t* Event)
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{
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if (!(USB_IsConnected))
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return;
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Endpoint_SelectEndpoint(MIDIInterfaceInfo->DataINEndpointNumber);
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while (!(Endpoint_IsReadWriteAllowed()));
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Endpoint_Write_Stream_LE(Event, sizeof(USB_MIDI_EventPacket_t), NO_STREAM_CALLBACK);
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Endpoint_ClearIN();
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}
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bool USB_MIDI_ReceiveEventPacket(USB_ClassInfo_MIDI_t* MIDIInterfaceInfo, USB_MIDI_EventPacket_t* Event)
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{
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if (!(USB_IsConnected))
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return false;
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Endpoint_SelectEndpoint(MIDIInterfaceInfo->DataOUTEndpointNumber);
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if (!(Endpoint_IsReadWriteAllowed()))
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return false;
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Endpoint_Read_Stream_LE(Event, sizeof(USB_MIDI_EventPacket_t), NO_STREAM_CALLBACK);
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Endpoint_ClearOUT();
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return true;
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}
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