1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Main header file for the ALSA sequencer 4*4882a593Smuzhiyun * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl> 5*4882a593Smuzhiyun * (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz> 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun #ifndef __SOUND_ASEQUENCER_H 8*4882a593Smuzhiyun #define __SOUND_ASEQUENCER_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <linux/ioctl.h> 11*4882a593Smuzhiyun #include <sound/asound.h> 12*4882a593Smuzhiyun #include <uapi/sound/asequencer.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* helper macro */ 15*4882a593Smuzhiyun #define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce))) 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* 18*4882a593Smuzhiyun * type check macros 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun /* result events: 0-4 */ 21*4882a593Smuzhiyun #define snd_seq_ev_is_result_type(ev) ((ev)->type < 5) 22*4882a593Smuzhiyun /* channel specific events: 5-19 */ 23*4882a593Smuzhiyun #define snd_seq_ev_is_channel_type(ev) ((ev)->type >= 5 && (ev)->type < 20) 24*4882a593Smuzhiyun /* note events: 5-9 */ 25*4882a593Smuzhiyun #define snd_seq_ev_is_note_type(ev) ((ev)->type >= 5 && (ev)->type < 10) 26*4882a593Smuzhiyun /* control events: 10-19 */ 27*4882a593Smuzhiyun #define snd_seq_ev_is_control_type(ev) ((ev)->type >= 10 && (ev)->type < 20) 28*4882a593Smuzhiyun /* queue control events: 30-39 */ 29*4882a593Smuzhiyun #define snd_seq_ev_is_queue_type(ev) ((ev)->type >= 30 && (ev)->type < 40) 30*4882a593Smuzhiyun /* system status messages */ 31*4882a593Smuzhiyun #define snd_seq_ev_is_message_type(ev) ((ev)->type >= 60 && (ev)->type < 69) 32*4882a593Smuzhiyun /* sample messages */ 33*4882a593Smuzhiyun #define snd_seq_ev_is_sample_type(ev) ((ev)->type >= 70 && (ev)->type < 79) 34*4882a593Smuzhiyun /* user-defined messages */ 35*4882a593Smuzhiyun #define snd_seq_ev_is_user_type(ev) ((ev)->type >= 90 && (ev)->type < 99) 36*4882a593Smuzhiyun /* fixed length events: 0-99 */ 37*4882a593Smuzhiyun #define snd_seq_ev_is_fixed_type(ev) ((ev)->type < 100) 38*4882a593Smuzhiyun /* variable length events: 130-139 */ 39*4882a593Smuzhiyun #define snd_seq_ev_is_variable_type(ev) ((ev)->type >= 130 && (ev)->type < 140) 40*4882a593Smuzhiyun /* reserved for kernel */ 41*4882a593Smuzhiyun #define snd_seq_ev_is_reserved(ev) ((ev)->type >= 150) 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun /* direct dispatched events */ 44*4882a593Smuzhiyun #define snd_seq_ev_is_direct(ev) ((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT) 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* 47*4882a593Smuzhiyun * macros to check event flags 48*4882a593Smuzhiyun */ 49*4882a593Smuzhiyun /* prior events */ 50*4882a593Smuzhiyun #define snd_seq_ev_is_prior(ev) (((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH) 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun /* event length type */ 53*4882a593Smuzhiyun #define snd_seq_ev_length_type(ev) ((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) 54*4882a593Smuzhiyun #define snd_seq_ev_is_fixed(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED) 55*4882a593Smuzhiyun #define snd_seq_ev_is_variable(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE) 56*4882a593Smuzhiyun #define snd_seq_ev_is_varusr(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR) 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun /* time-stamp type */ 59*4882a593Smuzhiyun #define snd_seq_ev_timestamp_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK) 60*4882a593Smuzhiyun #define snd_seq_ev_is_tick(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK) 61*4882a593Smuzhiyun #define snd_seq_ev_is_real(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL) 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* time-mode type */ 64*4882a593Smuzhiyun #define snd_seq_ev_timemode_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK) 65*4882a593Smuzhiyun #define snd_seq_ev_is_abstime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS) 66*4882a593Smuzhiyun #define snd_seq_ev_is_reltime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL) 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun /* queue sync port */ 69*4882a593Smuzhiyun #define snd_seq_queue_sync_port(q) ((q) + 16) 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun #endif /* __SOUND_ASEQUENCER_H */ 72