2009-02-27 20:43:04 -07:00
|
|
|
/*
|
2010-08-22 17:08:25 -06:00
|
|
|
* Line6 Linux USB driver - 0.9.1beta
|
2009-02-27 20:43:04 -07:00
|
|
|
*
|
2010-08-11 17:35:30 -06:00
|
|
|
* Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
|
2009-02-27 20:43:04 -07:00
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or
|
|
|
|
* modify it under the terms of the GNU General Public License as
|
|
|
|
* published by the Free Software Foundation, version 2.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef MIDI_H
|
|
|
|
#define MIDI_H
|
|
|
|
|
|
|
|
#include <sound/rawmidi.h>
|
|
|
|
|
|
|
|
#include "midibuf.h"
|
|
|
|
|
|
|
|
#define MIDI_BUFFER_SIZE 1024
|
|
|
|
|
2009-02-27 22:09:55 -07:00
|
|
|
struct snd_line6_midi {
|
2009-02-27 20:43:04 -07:00
|
|
|
/**
|
|
|
|
Pointer back to the Line6 driver data structure.
|
|
|
|
*/
|
|
|
|
struct usb_line6 *line6;
|
|
|
|
|
|
|
|
/**
|
|
|
|
MIDI substream for receiving (or NULL if not active).
|
|
|
|
*/
|
|
|
|
struct snd_rawmidi_substream *substream_receive;
|
|
|
|
|
|
|
|
/**
|
|
|
|
MIDI substream for transmitting (or NULL if not active).
|
|
|
|
*/
|
|
|
|
struct snd_rawmidi_substream *substream_transmit;
|
|
|
|
|
|
|
|
/**
|
|
|
|
Number of currently active MIDI send URBs.
|
|
|
|
*/
|
|
|
|
int num_active_send_urbs;
|
|
|
|
|
|
|
|
/**
|
|
|
|
Spin lock to protect updates of send_urb.
|
|
|
|
*/
|
|
|
|
spinlock_t send_urb_lock;
|
|
|
|
|
|
|
|
/**
|
|
|
|
Spin lock to protect MIDI buffer handling.
|
|
|
|
*/
|
|
|
|
spinlock_t midi_transmit_lock;
|
|
|
|
|
|
|
|
/**
|
|
|
|
Wait queue for MIDI transmission.
|
|
|
|
*/
|
|
|
|
wait_queue_head_t send_wait;
|
|
|
|
|
|
|
|
/**
|
|
|
|
Bit mask for output MIDI channels.
|
|
|
|
*/
|
2011-12-05 02:09:25 -07:00
|
|
|
unsigned short midi_mask_transmit;
|
2009-02-27 20:43:04 -07:00
|
|
|
|
|
|
|
/**
|
|
|
|
Bit mask for input MIDI channels.
|
|
|
|
*/
|
2011-12-05 02:10:37 -07:00
|
|
|
unsigned short midi_mask_receive;
|
2009-02-27 20:43:04 -07:00
|
|
|
|
|
|
|
/**
|
|
|
|
Buffer for incoming MIDI stream.
|
|
|
|
*/
|
|
|
|
struct MidiBuffer midibuf_in;
|
|
|
|
|
|
|
|
/**
|
|
|
|
Buffer for outgoing MIDI stream.
|
|
|
|
*/
|
|
|
|
struct MidiBuffer midibuf_out;
|
|
|
|
};
|
|
|
|
|
|
|
|
extern int line6_init_midi(struct usb_line6 *line6);
|
2009-02-27 22:09:55 -07:00
|
|
|
extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data,
|
|
|
|
int length);
|
2009-02-27 20:43:04 -07:00
|
|
|
|
|
|
|
#endif
|