2 * Main header file for the ALSA sequencer
3 * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
4 * (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #ifndef __SOUND_ASEQUENCER_H
23 #define __SOUND_ASEQUENCER_H
25 #include <linux/ioctl.h>
26 #include <sound/asound.h>
27 #include <uapi/sound/asequencer.h>
30 #define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce)))
35 /* result events: 0-4 */
36 #define snd_seq_ev_is_result_type(ev) ((ev)->type < 5)
37 /* channel specific events: 5-19 */
38 #define snd_seq_ev_is_channel_type(ev) ((ev)->type >= 5 && (ev)->type < 20)
39 /* note events: 5-9 */
40 #define snd_seq_ev_is_note_type(ev) ((ev)->type >= 5 && (ev)->type < 10)
41 /* control events: 10-19 */
42 #define snd_seq_ev_is_control_type(ev) ((ev)->type >= 10 && (ev)->type < 20)
43 /* queue control events: 30-39 */
44 #define snd_seq_ev_is_queue_type(ev) ((ev)->type >= 30 && (ev)->type < 40)
45 /* system status messages */
46 #define snd_seq_ev_is_message_type(ev) ((ev)->type >= 60 && (ev)->type < 69)
48 #define snd_seq_ev_is_sample_type(ev) ((ev)->type >= 70 && (ev)->type < 79)
49 /* user-defined messages */
50 #define snd_seq_ev_is_user_type(ev) ((ev)->type >= 90 && (ev)->type < 99)
51 /* fixed length events: 0-99 */
52 #define snd_seq_ev_is_fixed_type(ev) ((ev)->type < 100)
53 /* variable length events: 130-139 */
54 #define snd_seq_ev_is_variable_type(ev) ((ev)->type >= 130 && (ev)->type < 140)
55 /* reserved for kernel */
56 #define snd_seq_ev_is_reserved(ev) ((ev)->type >= 150)
58 /* direct dispatched events */
59 #define snd_seq_ev_is_direct(ev) ((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT)
62 * macros to check event flags
65 #define snd_seq_ev_is_prior(ev) (((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH)
67 /* event length type */
68 #define snd_seq_ev_length_type(ev) ((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK)
69 #define snd_seq_ev_is_fixed(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED)
70 #define snd_seq_ev_is_variable(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
71 #define snd_seq_ev_is_varusr(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR)
74 #define snd_seq_ev_timestamp_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK)
75 #define snd_seq_ev_is_tick(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK)
76 #define snd_seq_ev_is_real(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL)
79 #define snd_seq_ev_timemode_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK)
80 #define snd_seq_ev_is_abstime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS)
81 #define snd_seq_ev_is_reltime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL)
84 #define snd_seq_queue_sync_port(q) ((q) + 16)
86 #endif /* __SOUND_ASEQUENCER_H */