/*
   *  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>
   *
   *
   *   This program is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License as published by
   *   the Free Software Foundation; either version 2 of the License, or
   *   (at your option) any later version.
   *
   *   This program is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *   GNU General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   *
   */
  #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 */