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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 */ |
30 | struct 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 | |
41 | int snd_midi_event_new(int bufsize, struct snd_midi_event **rdev); |
42 | void snd_midi_event_free(struct snd_midi_event *dev); |
43 | void snd_midi_event_reset_encode(struct snd_midi_event *dev); |
44 | void snd_midi_event_reset_decode(struct snd_midi_event *dev); |
45 | void snd_midi_event_no_status(struct snd_midi_event *dev, int on); |
46 | /* encode from byte stream - return number of written bytes if success */ |
47 | long snd_midi_event_encode(struct snd_midi_event *dev, unsigned char *buf, long count, |
48 | struct snd_seq_event *ev); |
49 | int 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 */ |
51 | long 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 */ |
55 |
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