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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 <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) /* queue sync port */ #define snd_seq_queue_sync_port(q) ((q) + 16) #endif /* __SOUND_ASEQUENCER_H */