11a59d1b8SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Main header file for the ALSA sequencer 41da177e4SLinus Torvalds * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl> 5c1017a4cSJaroslav Kysela * (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz> 61da177e4SLinus Torvalds */ 71da177e4SLinus Torvalds #ifndef __SOUND_ASEQUENCER_H 81da177e4SLinus Torvalds #define __SOUND_ASEQUENCER_H 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds #include <linux/ioctl.h> 111da177e4SLinus Torvalds #include <sound/asound.h> 12674e95caSDavid Howells #include <uapi/sound/asequencer.h> 13c7e0b5bfSTakashi Iwai 14c7e0b5bfSTakashi Iwai /* helper macro */ 15c7e0b5bfSTakashi Iwai #define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce))) 161da177e4SLinus Torvalds 171da177e4SLinus Torvalds /* 181da177e4SLinus Torvalds * type check macros 191da177e4SLinus Torvalds */ 201da177e4SLinus Torvalds /* result events: 0-4 */ 21c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_result_type(ev) ((ev)->type < 5) 221da177e4SLinus Torvalds /* channel specific events: 5-19 */ 23c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_channel_type(ev) ((ev)->type >= 5 && (ev)->type < 20) 241da177e4SLinus Torvalds /* note events: 5-9 */ 25c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_note_type(ev) ((ev)->type >= 5 && (ev)->type < 10) 261da177e4SLinus Torvalds /* control events: 10-19 */ 27c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_control_type(ev) ((ev)->type >= 10 && (ev)->type < 20) 281da177e4SLinus Torvalds /* queue control events: 30-39 */ 29c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_queue_type(ev) ((ev)->type >= 30 && (ev)->type < 40) 301da177e4SLinus Torvalds /* system status messages */ 31c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_message_type(ev) ((ev)->type >= 60 && (ev)->type < 69) 321da177e4SLinus Torvalds /* sample messages */ 33c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_sample_type(ev) ((ev)->type >= 70 && (ev)->type < 79) 341da177e4SLinus Torvalds /* user-defined messages */ 35c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_user_type(ev) ((ev)->type >= 90 && (ev)->type < 99) 361da177e4SLinus Torvalds /* fixed length events: 0-99 */ 37c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_fixed_type(ev) ((ev)->type < 100) 381da177e4SLinus Torvalds /* variable length events: 130-139 */ 39c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_variable_type(ev) ((ev)->type >= 130 && (ev)->type < 140) 401da177e4SLinus Torvalds /* reserved for kernel */ 41c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_reserved(ev) ((ev)->type >= 150) 421da177e4SLinus Torvalds 431da177e4SLinus Torvalds /* direct dispatched events */ 44c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_direct(ev) ((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT) 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds /* 471da177e4SLinus Torvalds * macros to check event flags 481da177e4SLinus Torvalds */ 491da177e4SLinus Torvalds /* prior events */ 50c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_prior(ev) (((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH) 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds /* event length type */ 53c7e0b5bfSTakashi Iwai #define snd_seq_ev_length_type(ev) ((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) 54c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_fixed(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED) 55c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_variable(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE) 56c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_varusr(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR) 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* time-stamp type */ 59c7e0b5bfSTakashi Iwai #define snd_seq_ev_timestamp_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK) 60c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_tick(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK) 61c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_real(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL) 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* time-mode type */ 64c7e0b5bfSTakashi Iwai #define snd_seq_ev_timemode_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK) 65c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_abstime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS) 66c7e0b5bfSTakashi Iwai #define snd_seq_ev_is_reltime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL) 671da177e4SLinus Torvalds 68*46397622STakashi Iwai /* check whether the given event is a UMP event */ 69*46397622STakashi Iwai #define snd_seq_ev_is_ump(ev) \ 70*46397622STakashi Iwai (IS_ENABLED(CONFIG_SND_SEQ_UMP) && ((ev)->flags & SNDRV_SEQ_EVENT_UMP)) 71*46397622STakashi Iwai 721da177e4SLinus Torvalds /* queue sync port */ 73c7e0b5bfSTakashi Iwai #define snd_seq_queue_sync_port(q) ((q) + 16) 74c7e0b5bfSTakashi Iwai 751da177e4SLinus Torvalds #endif /* __SOUND_ASEQUENCER_H */ 76