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TOMOYO Linux Cross Reference
Linux/include/sound/asequencer.h

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  1 /*
  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>
  5  *
  6  *
  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.
 11  *
 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.
 16  *
 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
 20  *
 21  */
 22 #ifndef __SOUND_ASEQUENCER_H
 23 #define __SOUND_ASEQUENCER_H
 24 
 25 #include <linux/ioctl.h>
 26 #include <sound/asound.h>
 27 #include <uapi/sound/asequencer.h>
 28 
 29 /* helper macro */
 30 #define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce)))
 31 
 32 /*
 33  * type check macros
 34  */
 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)
 47 /* sample messages */
 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)
 57 
 58 /* direct dispatched events */
 59 #define snd_seq_ev_is_direct(ev)        ((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT)
 60 
 61 /*
 62  * macros to check event flags
 63  */
 64 /* prior events */
 65 #define snd_seq_ev_is_prior(ev)         (((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH)
 66 
 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)
 72 
 73 /* time-stamp type */
 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)
 77 
 78 /* time-mode type */
 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)
 82 
 83 /* queue sync port */
 84 #define snd_seq_queue_sync_port(q)      ((q) + 16)
 85 
 86 #endif /* __SOUND_ASEQUENCER_H */
 87 

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