1/* 2 * Main header file for the ALSA sequencer 3 * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl> 4 * (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz> 5 * 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22#ifndef __SOUND_ASEQUENCER_H 23#define __SOUND_ASEQUENCER_H 24 25#include <linux/ioctl.h> 26#include <sound/asound.h> 27#include <uapi/sound/asequencer.h> 28 29/* helper macro */ 30#define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce))) 31 32/* 33 * type check macros 34 */ 35/* result events: 0-4 */ 36#define snd_seq_ev_is_result_type(ev) ((ev)->type < 5) 37/* channel specific events: 5-19 */ 38#define snd_seq_ev_is_channel_type(ev) ((ev)->type >= 5 && (ev)->type < 20) 39/* note events: 5-9 */ 40#define snd_seq_ev_is_note_type(ev) ((ev)->type >= 5 && (ev)->type < 10) 41/* control events: 10-19 */ 42#define snd_seq_ev_is_control_type(ev) ((ev)->type >= 10 && (ev)->type < 20) 43/* queue control events: 30-39 */ 44#define snd_seq_ev_is_queue_type(ev) ((ev)->type >= 30 && (ev)->type < 40) 45/* system status messages */ 46#define snd_seq_ev_is_message_type(ev) ((ev)->type >= 60 && (ev)->type < 69) 47/* sample messages */ 48#define snd_seq_ev_is_sample_type(ev) ((ev)->type >= 70 && (ev)->type < 79) 49/* user-defined messages */ 50#define snd_seq_ev_is_user_type(ev) ((ev)->type >= 90 && (ev)->type < 99) 51/* fixed length events: 0-99 */ 52#define snd_seq_ev_is_fixed_type(ev) ((ev)->type < 100) 53/* variable length events: 130-139 */ 54#define snd_seq_ev_is_variable_type(ev) ((ev)->type >= 130 && (ev)->type < 140) 55/* reserved for kernel */ 56#define snd_seq_ev_is_reserved(ev) ((ev)->type >= 150) 57 58/* direct dispatched events */ 59#define snd_seq_ev_is_direct(ev) ((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT) 60 61/* 62 * macros to check event flags 63 */ 64/* prior events */ 65#define snd_seq_ev_is_prior(ev) (((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH) 66 67/* event length type */ 68#define snd_seq_ev_length_type(ev) ((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) 69#define snd_seq_ev_is_fixed(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED) 70#define snd_seq_ev_is_variable(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE) 71#define snd_seq_ev_is_varusr(ev) (snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR) 72 73/* time-stamp type */ 74#define snd_seq_ev_timestamp_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK) 75#define snd_seq_ev_is_tick(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK) 76#define snd_seq_ev_is_real(ev) (snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL) 77 78/* time-mode type */ 79#define snd_seq_ev_timemode_type(ev) ((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK) 80#define snd_seq_ev_is_abstime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS) 81#define snd_seq_ev_is_reltime(ev) (snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL) 82 83/* queue sync port */ 84#define snd_seq_queue_sync_port(q) ((q) + 16) 85 86#endif /* __SOUND_ASEQUENCER_H */ 87