1#ifndef __SOUND_SEQ_MIDI_EVENT_H
 2#define __SOUND_SEQ_MIDI_EVENT_H
 3
 4/*
 5 *  MIDI byte <-> sequencer event coder
 6 *
 7 *  Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>,
 8 *                        Jaroslav Kysela <perex@perex.cz>
 9 *
10 *   This program is free software; you can redistribute it and/or modify
11 *   it under the terms of the GNU General Public License as published by
12 *   the Free Software Foundation; either version 2 of the License, or
13 *   (at your option) any later version.
14 *
15 *   This program is distributed in the hope that it will be useful,
16 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
17 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 *   GNU General Public License for more details.
19 *
20 *   You should have received a copy of the GNU General Public License
21 *   along with this program; if not, write to the Free Software
22 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23 */
24
25#include "asequencer.h"
26
27#define MAX_MIDI_EVENT_BUF	256
28
29/* midi status */
30struct snd_midi_event {
31	int qlen;		/* queue length */
32	int read;		/* chars read */
33	int type;		/* current event type */
34	unsigned char lastcmd;	/* last command (for MIDI state handling) */
35	unsigned char nostat;	/* no state flag */
36	int bufsize;		/* allocated buffer size */
37	unsigned char *buf;	/* input buffer */
38	spinlock_t lock;
39};
40
41int snd_midi_event_new(int bufsize, struct snd_midi_event **rdev);
42void snd_midi_event_free(struct snd_midi_event *dev);
43void snd_midi_event_reset_encode(struct snd_midi_event *dev);
44void snd_midi_event_reset_decode(struct snd_midi_event *dev);
45void snd_midi_event_no_status(struct snd_midi_event *dev, int on);
46/* encode from byte stream - return number of written bytes if success */
47long snd_midi_event_encode(struct snd_midi_event *dev, unsigned char *buf, long count,
48			   struct snd_seq_event *ev);
49int snd_midi_event_encode_byte(struct snd_midi_event *dev, int c, struct snd_seq_event *ev);
50/* decode from event to bytes - return number of written bytes if success */
51long snd_midi_event_decode(struct snd_midi_event *dev, unsigned char *buf, long count,
52			   struct snd_seq_event *ev);
53
54#endif /* __SOUND_SEQ_MIDI_EVENT_H */

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2#ifndef __SOUND_SEQ_MIDI_EVENT_H
 3#define __SOUND_SEQ_MIDI_EVENT_H
 4
 5/*
 6 *  MIDI byte <-> sequencer event coder
 7 *
 8 *  Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>,
 9 *                        Jaroslav Kysela <perex@perex.cz>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10 */
11
12#include <sound/asequencer.h>
13
14#define MAX_MIDI_EVENT_BUF	256
15
16/* midi status */
17struct snd_midi_event {
18	int qlen;		/* queue length */
19	int read;		/* chars read */
20	int type;		/* current event type */
21	unsigned char lastcmd;	/* last command (for MIDI state handling) */
22	unsigned char nostat;	/* no state flag */
23	int bufsize;		/* allocated buffer size */
24	unsigned char *buf;	/* input buffer */
25	spinlock_t lock;
26};
27
28int snd_midi_event_new(int bufsize, struct snd_midi_event **rdev);
29void snd_midi_event_free(struct snd_midi_event *dev);
30void snd_midi_event_reset_encode(struct snd_midi_event *dev);
31void snd_midi_event_reset_decode(struct snd_midi_event *dev);
32void snd_midi_event_no_status(struct snd_midi_event *dev, int on);
33bool snd_midi_event_encode_byte(struct snd_midi_event *dev, unsigned char c,
34				struct snd_seq_event *ev);
 
 
35/* decode from event to bytes - return number of written bytes if success */
36long snd_midi_event_decode(struct snd_midi_event *dev, unsigned char *buf, long count,
37			   struct snd_seq_event *ev);
38
39#endif /* __SOUND_SEQ_MIDI_EVENT_H */