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