76 lines
3.1 KiB
C
76 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Main header file for the ALSA sequencer
|
|
* Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
|
|
* (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
|
|
*/
|
|
#ifndef __SOUND_ASEQUENCER_H
|
|
#define __SOUND_ASEQUENCER_H
|
|
|
|
#include <linux/ioctl.h>
|
|
#include <sound/asound.h>
|
|
#include <uapi/sound/asequencer.h>
|
|
|
|
/* helper macro */
|
|
#define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce)))
|
|
|
|
/*
|
|
* type check macros
|
|
*/
|
|
/* result events: 0-4 */
|
|
#define snd_seq_ev_is_result_type(ev) ((ev)->type < 5)
|
|
/* channel specific events: 5-19 */
|
|
#define snd_seq_ev_is_channel_type(ev) ((ev)->type >= 5 && (ev)->type < 20)
|
|
/* note events: 5-9 */
|
|
#define snd_seq_ev_is_note_type(ev) ((ev)->type >= 5 && (ev)->type < 10)
|
|
/* control events: 10-19 */
|
|
#define snd_seq_ev_is_control_type(ev) ((ev)->type >= 10 && (ev)->type < 20)
|
|
/* queue control events: 30-39 */
|
|
#define snd_seq_ev_is_queue_type(ev) ((ev)->type >= 30 && (ev)->type < 40)
|
|
/* system status messages */
|
|
#define snd_seq_ev_is_message_type(ev) ((ev)->type >= 60 && (ev)->type < 69)
|
|
/* sample messages */
|
|
#define snd_seq_ev_is_sample_type(ev) ((ev)->type >= 70 && (ev)->type < 79)
|
|
/* user-defined messages */
|
|
#define snd_seq_ev_is_user_type(ev) ((ev)->type >= 90 && (ev)->type < 99)
|
|
/* fixed length events: 0-99 */
|
|
#define snd_seq_ev_is_fixed_type(ev) ((ev)->type < 100)
|
|
/* variable length events: 130-139 */
|
|
#define snd_seq_ev_is_variable_type(ev) ((ev)->type >= 130 && (ev)->type < 140)
|
|
/* reserved for kernel */
|
|
#define snd_seq_ev_is_reserved(ev) ((ev)->type >= 150)
|
|
|
|
/* direct dispatched events */
|
|
#define snd_seq_ev_is_direct(ev) ((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT)
|
|
|
|
/*
|
|
* macros to check event flags
|
|
*/
|
|
/* prior events */
|
|
#define snd_seq_ev_is_prior(ev) (((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH)
|
|
|
|
/* event length type */
|
|
#define snd_seq_ev_length_type(ev) ((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK)
|
|
#define snd_seq_ev_is_fixed(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED)
|
|
#define snd_seq_ev_is_variable(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
|
|
#define snd_seq_ev_is_varusr(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR)
|
|
|
|
/* time-stamp type */
|
|
#define snd_seq_ev_timestamp_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK)
|
|
#define snd_seq_ev_is_tick(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK)
|
|
#define snd_seq_ev_is_real(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL)
|
|
|
|
/* time-mode type */
|
|
#define snd_seq_ev_timemode_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK)
|
|
#define snd_seq_ev_is_abstime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS)
|
|
#define snd_seq_ev_is_reltime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL)
|
|
|
|
/* check whether the given event is a UMP event */
|
|
#define snd_seq_ev_is_ump(ev) \
|
|
(IS_ENABLED(CONFIG_SND_SEQ_UMP) && ((ev)->flags & SNDRV_SEQ_EVENT_UMP))
|
|
|
|
/* queue sync port */
|
|
#define snd_seq_queue_sync_port(q) ((q) + 16)
|
|
|
|
#endif /* __SOUND_ASEQUENCER_H */
|