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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Main header file for the ALSA sequencer
- * Copyright (c) 1998-1999 by Frank van de Pol <[email protected]>
- * (c) 1998-1999 by Jaroslav Kysela <[email protected]>
- */
- #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)
- /* queue sync port */
- #define snd_seq_queue_sync_port(q) ((q) + 16)
- #endif /* __SOUND_ASEQUENCER_H */
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