/*
   *  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

  #ifdef __KERNEL__

  #include <linux/ioctl.h>

  #include <sound/asound.h>

  #endif

  
  /** version of the sequencer */
  #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1)
  
  /**
   * definition of sequencer event types
   */
  
  /** system messages

   * event data type = #snd_seq_result

   */
  #define SNDRV_SEQ_EVENT_SYSTEM		0
  #define SNDRV_SEQ_EVENT_RESULT		1
  
  /** note messages (channel specific)

   * event data type = #snd_seq_ev_note

   */
  #define SNDRV_SEQ_EVENT_NOTE		5
  #define SNDRV_SEQ_EVENT_NOTEON		6
  #define SNDRV_SEQ_EVENT_NOTEOFF		7
  #define SNDRV_SEQ_EVENT_KEYPRESS	8
  	
  /** control messages (channel specific)

   * event data type = #snd_seq_ev_ctrl

   */
  #define SNDRV_SEQ_EVENT_CONTROLLER	10
  #define SNDRV_SEQ_EVENT_PGMCHANGE	11
  #define SNDRV_SEQ_EVENT_CHANPRESS	12
  #define SNDRV_SEQ_EVENT_PITCHBEND	13	/**< from -8192 to 8191 */
  #define SNDRV_SEQ_EVENT_CONTROL14	14	/**< 14 bit controller value */
  #define SNDRV_SEQ_EVENT_NONREGPARAM	15	/**< 14 bit NRPN address + 14 bit unsigned value */
  #define SNDRV_SEQ_EVENT_REGPARAM	16	/**< 14 bit RPN address + 14 bit unsigned value */
  
  /** synchronisation messages

   * event data type = #snd_seq_ev_ctrl

   */
  #define SNDRV_SEQ_EVENT_SONGPOS		20	/* Song Position Pointer with LSB and MSB values */
  #define SNDRV_SEQ_EVENT_SONGSEL		21	/* Song Select with song ID number */
  #define SNDRV_SEQ_EVENT_QFRAME		22	/* midi time code quarter frame */
  #define SNDRV_SEQ_EVENT_TIMESIGN	23	/* SMF Time Signature event */
  #define SNDRV_SEQ_EVENT_KEYSIGN		24	/* SMF Key Signature event */
  	        
  /** timer messages

   * event data type = snd_seq_ev_queue_control

   */
  #define SNDRV_SEQ_EVENT_START		30	/* midi Real Time Start message */
  #define SNDRV_SEQ_EVENT_CONTINUE	31	/* midi Real Time Continue message */
  #define SNDRV_SEQ_EVENT_STOP		32	/* midi Real Time Stop message */	
  #define	SNDRV_SEQ_EVENT_SETPOS_TICK	33	/* set tick queue position */
  #define SNDRV_SEQ_EVENT_SETPOS_TIME	34	/* set realtime queue position */
  #define SNDRV_SEQ_EVENT_TEMPO		35	/* (SMF) Tempo event */
  #define SNDRV_SEQ_EVENT_CLOCK		36	/* midi Real Time Clock message */
  #define SNDRV_SEQ_EVENT_TICK		37	/* midi Real Time Tick message */
  #define SNDRV_SEQ_EVENT_QUEUE_SKEW	38	/* skew queue tempo */
  
  /** others
   * event data type = none
   */
  #define SNDRV_SEQ_EVENT_TUNE_REQUEST	40	/* tune request */
  #define SNDRV_SEQ_EVENT_RESET		41	/* reset to power-on state */
  #define SNDRV_SEQ_EVENT_SENSING		42	/* "active sensing" event */
  
  /** echo back, kernel private messages
   * event data type = any type
   */
  #define SNDRV_SEQ_EVENT_ECHO		50	/* echo event */
  #define SNDRV_SEQ_EVENT_OSS		51	/* OSS raw event */
  
  /** system status messages (broadcast for subscribers)

   * event data type = snd_seq_addr

   */
  #define SNDRV_SEQ_EVENT_CLIENT_START	60	/* new client has connected */
  #define SNDRV_SEQ_EVENT_CLIENT_EXIT	61	/* client has left the system */
  #define SNDRV_SEQ_EVENT_CLIENT_CHANGE	62	/* client status/info has changed */
  #define SNDRV_SEQ_EVENT_PORT_START	63	/* new port was created */
  #define SNDRV_SEQ_EVENT_PORT_EXIT	64	/* port was deleted from system */
  #define SNDRV_SEQ_EVENT_PORT_CHANGE	65	/* port status/info has changed */
  
  /** port connection changes

   * event data type = snd_seq_connect

   */
  #define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED	66	/* ports connected */
  #define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67	/* ports disconnected */

  /* 70-89:  synthesizer events - obsoleted */

  
  /** user-defined events with fixed length
   * event data type = any
   */
  #define SNDRV_SEQ_EVENT_USR0		90
  #define SNDRV_SEQ_EVENT_USR1		91
  #define SNDRV_SEQ_EVENT_USR2		92
  #define SNDRV_SEQ_EVENT_USR3		93
  #define SNDRV_SEQ_EVENT_USR4		94
  #define SNDRV_SEQ_EVENT_USR5		95
  #define SNDRV_SEQ_EVENT_USR6		96
  #define SNDRV_SEQ_EVENT_USR7		97
  #define SNDRV_SEQ_EVENT_USR8		98
  #define SNDRV_SEQ_EVENT_USR9		99

  /* 100-118: instrument layer - obsoleted */

  /* 119-129: reserved */
  
  /* 130-139: variable length events

   * event data type = snd_seq_ev_ext

   * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
   */
  #define SNDRV_SEQ_EVENT_SYSEX		130	/* system exclusive data (variable length) */
  #define SNDRV_SEQ_EVENT_BOUNCE		131	/* error event */
  /* 132-134: reserved */
  #define SNDRV_SEQ_EVENT_USR_VAR0	135
  #define SNDRV_SEQ_EVENT_USR_VAR1	136
  #define SNDRV_SEQ_EVENT_USR_VAR2	137
  #define SNDRV_SEQ_EVENT_USR_VAR3	138
  #define SNDRV_SEQ_EVENT_USR_VAR4	139
  
  /* 150-151: kernel events with quote - DO NOT use in user clients */
  #define SNDRV_SEQ_EVENT_KERNEL_ERROR	150
  #define SNDRV_SEQ_EVENT_KERNEL_QUOTE	151	/* obsolete */
  
  /* 152-191: reserved */
  
  /* 192-254: hardware specific events */
  
  /* 255: special event */
  #define SNDRV_SEQ_EVENT_NONE		255

  typedef unsigned char snd_seq_event_type_t;

  
  /** event address */

  struct snd_seq_addr {

  	unsigned char client;	/**< Client number:         0..255, 255 = broadcast to all clients */
  	unsigned char port;	/**< Port within client:    0..255, 255 = broadcast to all ports */
  };
  
  /** port connection */

  struct snd_seq_connect {
  	struct snd_seq_addr sender;
  	struct snd_seq_addr dest;

  };
  
  
  #define SNDRV_SEQ_ADDRESS_UNKNOWN	253	/* unknown source */
  #define SNDRV_SEQ_ADDRESS_SUBSCRIBERS	254	/* send event to all subscribed ports */
  #define SNDRV_SEQ_ADDRESS_BROADCAST	255	/* send event to all queues/clients/ports/channels */
  #define SNDRV_SEQ_QUEUE_DIRECT		253	/* direct dispatch */
  
  	/* event mode flag - NOTE: only 8 bits available! */
  #define SNDRV_SEQ_TIME_STAMP_TICK	(0<<0) /* timestamp in clock ticks */
  #define SNDRV_SEQ_TIME_STAMP_REAL	(1<<0) /* timestamp in real time */
  #define SNDRV_SEQ_TIME_STAMP_MASK	(1<<0)
  
  #define SNDRV_SEQ_TIME_MODE_ABS		(0<<1)	/* absolute timestamp */
  #define SNDRV_SEQ_TIME_MODE_REL		(1<<1)	/* relative to current time */
  #define SNDRV_SEQ_TIME_MODE_MASK	(1<<1)
  
  #define SNDRV_SEQ_EVENT_LENGTH_FIXED	(0<<2)	/* fixed event size */
  #define SNDRV_SEQ_EVENT_LENGTH_VARIABLE	(1<<2)	/* variable event size */
  #define SNDRV_SEQ_EVENT_LENGTH_VARUSR	(2<<2)	/* variable event size - user memory space */
  #define SNDRV_SEQ_EVENT_LENGTH_MASK	(3<<2)
  
  #define SNDRV_SEQ_PRIORITY_NORMAL	(0<<4)	/* normal priority */
  #define SNDRV_SEQ_PRIORITY_HIGH		(1<<4)	/* event should be processed before others */
  #define SNDRV_SEQ_PRIORITY_MASK		(1<<4)
  
  
  	/* note event */

  struct snd_seq_ev_note {

  	unsigned char channel;
  	unsigned char note;
  	unsigned char velocity;
  	unsigned char off_velocity;	/* only for SNDRV_SEQ_EVENT_NOTE */
  	unsigned int duration;		/* only for SNDRV_SEQ_EVENT_NOTE */
  };
  
  	/* controller event */

  struct snd_seq_ev_ctrl {

  	unsigned char channel;
  	unsigned char unused1, unused2, unused3;	/* pad */
  	unsigned int param;
  	signed int value;
  };
  
  	/* generic set of bytes (12x8 bit) */

  struct snd_seq_ev_raw8 {

  	unsigned char d[12];	/* 8 bit value */
  };
  
  	/* generic set of integers (3x32 bit) */

  struct snd_seq_ev_raw32 {

  	unsigned int d[3];	/* 32 bit value */
  };
  
  	/* external stored data */

  struct snd_seq_ev_ext {

  	unsigned int len;	/* length of data */
  	void *ptr;		/* pointer to data (note: maybe 64-bit) */
  } __attribute__((packed));

  struct snd_seq_result {

  	int event;		/* processed event type */
  	int result;
  };

  struct snd_seq_real_time {

  	unsigned int tv_sec;	/* seconds */
  	unsigned int tv_nsec;	/* nanoseconds */
  };

  typedef unsigned int snd_seq_tick_time_t;	/* midi ticks */

  union snd_seq_timestamp {
  	snd_seq_tick_time_t tick;
  	struct snd_seq_real_time time;

  };

  struct snd_seq_queue_skew {

  	unsigned int value;
  	unsigned int base;
  };
  
  	/* queue timer control */

  struct snd_seq_ev_queue_control {

  	unsigned char queue;			/* affected queue */
  	unsigned char pad[3];			/* reserved */
  	union {
  		signed int value;		/* affected value (e.g. tempo) */

  		union snd_seq_timestamp time;	/* time */

  		unsigned int position;		/* sync position */

  		struct snd_seq_queue_skew skew;

  		unsigned int d32[2];
  		unsigned char d8[8];
  	} param;
  };
  
  	/* quoted event - inside the kernel only */

  struct snd_seq_ev_quote {
  	struct snd_seq_addr origin;		/* original sender */

  	unsigned short value;		/* optional data */

  	struct snd_seq_event *event;		/* quoted event */

  } __attribute__((packed));
  
  
  	/* sequencer event */

  struct snd_seq_event {
  	snd_seq_event_type_t type;	/* event type */

  	unsigned char flags;		/* event flags */
  	char tag;
  	
  	unsigned char queue;		/* schedule queue */

  	union snd_seq_timestamp time;	/* schedule time */

  	struct snd_seq_addr source;	/* source address */
  	struct snd_seq_addr dest;	/* destination address */

  
  	union {				/* event data... */

  		struct snd_seq_ev_note note;
  		struct snd_seq_ev_ctrl control;
  		struct snd_seq_ev_raw8 raw8;
  		struct snd_seq_ev_raw32 raw32;
  		struct snd_seq_ev_ext ext;
  		struct snd_seq_ev_queue_control queue;
  		union snd_seq_timestamp time;
  		struct snd_seq_addr addr;
  		struct snd_seq_connect connect;
  		struct snd_seq_result result;

  		struct snd_seq_ev_quote quote;

  	} data;
  };
  
  
  /*
   * bounce event - stored as variable size data
   */

  struct snd_seq_event_bounce {

  	int err;

  	struct snd_seq_event event;

  	/* external data follows here. */
  };

  #ifdef __KERNEL__
  
  /* 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 /* __KERNEL__ */

  
  	/* system information */

  struct snd_seq_system_info {

  	int queues;			/* maximum queues count */
  	int clients;			/* maximum clients count */
  	int ports;			/* maximum ports per client */
  	int channels;			/* maximum channels per port */
  	int cur_clients;		/* current clients */
  	int cur_queues;			/* current queues */
  	char reserved[24];
  };
  
  
  	/* system running information */

  struct snd_seq_running_info {

  	unsigned char client;		/* client id */
  	unsigned char big_endian;	/* 1 = big-endian */
  	unsigned char cpu_mode;		/* 4 = 32bit, 8 = 64bit */
  	unsigned char pad;		/* reserved */
  	unsigned char reserved[12];
  };
  
  
  	/* known client numbers */
  #define SNDRV_SEQ_CLIENT_SYSTEM		0

  	/* internal client numbers */
  #define SNDRV_SEQ_CLIENT_DUMMY		14	/* midi through */
  #define SNDRV_SEQ_CLIENT_OSS		15	/* oss sequencer emulator */

  
  
  	/* client types */

  typedef int __bitwise snd_seq_client_type_t;
  #define	NO_CLIENT	((__force snd_seq_client_type_t) 0)
  #define	USER_CLIENT	((__force snd_seq_client_type_t) 1)
  #define	KERNEL_CLIENT	((__force snd_seq_client_type_t) 2)

                          
  	/* event filter flags */
  #define SNDRV_SEQ_FILTER_BROADCAST	(1<<0)	/* accept broadcast messages */
  #define SNDRV_SEQ_FILTER_MULTICAST	(1<<1)	/* accept multicast messages */
  #define SNDRV_SEQ_FILTER_BOUNCE		(1<<2)	/* accept bounce event in error */
  #define SNDRV_SEQ_FILTER_USE_EVENT	(1<<31)	/* use event filter */

  struct snd_seq_client_info {

  	int client;			/* client number to inquire */

  	snd_seq_client_type_t type;	/* client type */

  	char name[64];			/* client name */
  	unsigned int filter;		/* filter flags */
  	unsigned char multicast_filter[8]; /* multicast filter bitmap */
  	unsigned char event_filter[32];	/* event filter bitmap */
  	int num_ports;			/* RO: number of ports */
  	int event_lost;			/* number of lost events */
  	char reserved[64];		/* for future use */
  };
  
  
  /* client pool size */

  struct snd_seq_client_pool {

  	int client;			/* client number to inquire */
  	int output_pool;		/* outgoing (write) pool size */
  	int input_pool;			/* incoming (read) pool size */
  	int output_room;		/* minimum free pool size for select/blocking mode */
  	int output_free;		/* unused size */
  	int input_free;			/* unused size */
  	char reserved[64];
  };
  
  
  /* Remove events by specified criteria */
  
  #define SNDRV_SEQ_REMOVE_INPUT		(1<<0)	/* Flush input queues */
  #define SNDRV_SEQ_REMOVE_OUTPUT		(1<<1)	/* Flush output queues */
  #define SNDRV_SEQ_REMOVE_DEST		(1<<2)	/* Restrict by destination q:client:port */
  #define SNDRV_SEQ_REMOVE_DEST_CHANNEL	(1<<3)	/* Restrict by channel */
  #define SNDRV_SEQ_REMOVE_TIME_BEFORE	(1<<4)	/* Restrict to before time */
  #define SNDRV_SEQ_REMOVE_TIME_AFTER	(1<<5)	/* Restrict to time or after */
  #define SNDRV_SEQ_REMOVE_TIME_TICK	(1<<6)	/* Time is in ticks */
  #define SNDRV_SEQ_REMOVE_EVENT_TYPE	(1<<7)	/* Restrict to event type */
  #define SNDRV_SEQ_REMOVE_IGNORE_OFF 	(1<<8)	/* Do not flush off events */
  #define SNDRV_SEQ_REMOVE_TAG_MATCH 	(1<<9)	/* Restrict to events with given tag */

  struct snd_seq_remove_events {

  	unsigned int  remove_mode;	/* Flags that determine what gets removed */

  	union snd_seq_timestamp time;

  
  	unsigned char queue;	/* Queue for REMOVE_DEST */

  	struct snd_seq_addr dest;	/* Address for REMOVE_DEST */

  	unsigned char channel;	/* Channel for REMOVE_DEST */
  
  	int  type;	/* For REMOVE_EVENT_TYPE */
  	char  tag;	/* Tag for REMOVE_TAG */
  
  	int  reserved[10];	/* To allow for future binary compatibility */
  
  };
  
  
  	/* known port numbers */
  #define SNDRV_SEQ_PORT_SYSTEM_TIMER	0
  #define SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE	1
  
  	/* port capabilities (32 bits) */
  #define SNDRV_SEQ_PORT_CAP_READ		(1<<0)	/* readable from this port */
  #define SNDRV_SEQ_PORT_CAP_WRITE	(1<<1)	/* writable to this port */
  
  #define SNDRV_SEQ_PORT_CAP_SYNC_READ	(1<<2)
  #define SNDRV_SEQ_PORT_CAP_SYNC_WRITE	(1<<3)
  
  #define SNDRV_SEQ_PORT_CAP_DUPLEX	(1<<4)
  
  #define SNDRV_SEQ_PORT_CAP_SUBS_READ	(1<<5)	/* allow read subscription */
  #define SNDRV_SEQ_PORT_CAP_SUBS_WRITE	(1<<6)	/* allow write subscription */
  #define SNDRV_SEQ_PORT_CAP_NO_EXPORT	(1<<7)	/* routing not allowed */
  
  	/* port type */
  #define SNDRV_SEQ_PORT_TYPE_SPECIFIC	(1<<0)	/* hardware specific */
  #define SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1)	/* generic MIDI device */
  #define SNDRV_SEQ_PORT_TYPE_MIDI_GM	(1<<2)	/* General MIDI compatible device */
  #define SNDRV_SEQ_PORT_TYPE_MIDI_GS	(1<<3)	/* GS compatible device */
  #define SNDRV_SEQ_PORT_TYPE_MIDI_XG	(1<<4)	/* XG compatible device */
  #define SNDRV_SEQ_PORT_TYPE_MIDI_MT32	(1<<5)	/* MT-32 compatible device */
  #define SNDRV_SEQ_PORT_TYPE_MIDI_GM2	(1<<6)	/* General MIDI 2 compatible device */
  
  /* other standards...*/
  #define SNDRV_SEQ_PORT_TYPE_SYNTH	(1<<10)	/* Synth device (no MIDI compatible - direct wavetable) */
  #define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)	/* Sampling device (support sample download) */
  #define SNDRV_SEQ_PORT_TYPE_SAMPLE	(1<<12)	/* Sampling device (sample can be downloaded at any time) */
  /*...*/

  #define SNDRV_SEQ_PORT_TYPE_HARDWARE	(1<<16)	/* driver for a hardware device */
  #define SNDRV_SEQ_PORT_TYPE_SOFTWARE	(1<<17)	/* implemented in software */
  #define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER	(1<<18)	/* generates sound */
  #define SNDRV_SEQ_PORT_TYPE_PORT	(1<<19)	/* connects to other device(s) */

  #define SNDRV_SEQ_PORT_TYPE_APPLICATION	(1<<20)	/* application (sequencer/editor) */
  
  /* misc. conditioning flags */
  #define SNDRV_SEQ_PORT_FLG_GIVEN_PORT	(1<<0)
  #define SNDRV_SEQ_PORT_FLG_TIMESTAMP	(1<<1)
  #define SNDRV_SEQ_PORT_FLG_TIME_REAL	(1<<2)

  struct snd_seq_port_info {
  	struct snd_seq_addr addr;	/* client/port numbers */

  	char name[64];			/* port name */
  
  	unsigned int capability;	/* port capability bits */
  	unsigned int type;		/* port type bits */
  	int midi_channels;		/* channels per MIDI port */
  	int midi_voices;		/* voices per MIDI port */
  	int synth_voices;		/* voices per SYNTH port */
  
  	int read_use;			/* R/O: subscribers for output (from this port) */
  	int write_use;			/* R/O: subscribers for input (to this port) */
  
  	void *kernel;			/* reserved for kernel use (must be NULL) */
  	unsigned int flags;		/* misc. conditioning */
  	unsigned char time_queue;	/* queue # for timestamping */
  	char reserved[59];		/* for future use */
  };
  
  
  /* queue flags */
  #define SNDRV_SEQ_QUEUE_FLG_SYNC	(1<<0)	/* sync enabled */
  
  /* queue information */

  struct snd_seq_queue_info {

  	int queue;		/* queue id */
  
  	/*
  	 *  security settings, only owner of this queue can start/stop timer
  	 *  etc. if the queue is locked for other clients
  	 */
  	int owner;		/* client id for owner of the queue */
  	unsigned locked:1;	/* timing queue locked for other queues */
  	char name[64];		/* name of this queue */
  	unsigned int flags;	/* flags */
  	char reserved[60];	/* for future use */
  
  };
  
  /* queue info/status */

  struct snd_seq_queue_status {

  	int queue;			/* queue id */
  	int events;			/* read-only - queue size */

  	snd_seq_tick_time_t tick;	/* current tick */
  	struct snd_seq_real_time time;	/* current time */

  	int running;			/* running state of queue */
  	int flags;			/* various flags */
  	char reserved[64];		/* for the future */
  };
  
  
  /* queue tempo */

  struct snd_seq_queue_tempo {

  	int queue;			/* sequencer queue */
  	unsigned int tempo;		/* current tempo, us/tick */
  	int ppq;			/* time resolution, ticks/quarter */
  	unsigned int skew_value;	/* queue skew */
  	unsigned int skew_base;		/* queue skew base */
  	char reserved[24];		/* for the future */
  };
  
  
  /* sequencer timer sources */
  #define SNDRV_SEQ_TIMER_ALSA		0	/* ALSA timer */
  #define SNDRV_SEQ_TIMER_MIDI_CLOCK	1	/* Midi Clock (CLOCK event) */
  #define SNDRV_SEQ_TIMER_MIDI_TICK	2	/* Midi Timer Tick (TICK event) */
  
  /* queue timer info */

  struct snd_seq_queue_timer {

  	int queue;			/* sequencer queue */
  	int type;			/* source timer type */
  	union {
  		struct {

  			struct snd_timer_id id;	/* ALSA's timer ID */

  			unsigned int resolution;	/* resolution in Hz */
  		} alsa;
  	} u;
  	char reserved[64];		/* for the future use */
  };

  struct snd_seq_queue_client {

  	int queue;		/* sequencer queue */
  	int client;		/* sequencer client */
  	int used;		/* queue is used with this client
  				   (must be set for accepting events) */
  	/* per client watermarks */
  	char reserved[64];	/* for future use */
  };
  
  
  #define SNDRV_SEQ_PORT_SUBS_EXCLUSIVE	(1<<0)	/* exclusive connection */
  #define SNDRV_SEQ_PORT_SUBS_TIMESTAMP	(1<<1)
  #define SNDRV_SEQ_PORT_SUBS_TIME_REAL	(1<<2)

  struct snd_seq_port_subscribe {
  	struct snd_seq_addr sender;	/* sender address */
  	struct snd_seq_addr dest;	/* destination address */

  	unsigned int voices;		/* number of voices to be allocated (0 = don't care) */
  	unsigned int flags;		/* modes */
  	unsigned char queue;		/* input time-stamp queue (optional) */
  	unsigned char pad[3];		/* reserved */
  	char reserved[64];
  };
  
  /* type of query subscription */
  #define SNDRV_SEQ_QUERY_SUBS_READ	0
  #define SNDRV_SEQ_QUERY_SUBS_WRITE	1

  struct snd_seq_query_subs {
  	struct snd_seq_addr root;	/* client/port id to be searched */

  	int type;		/* READ or WRITE */
  	int index;		/* 0..N-1 */
  	int num_subs;		/* R/O: number of subscriptions on this port */

  	struct snd_seq_addr addr;	/* R/O: result */

  	unsigned char queue;	/* R/O: result */
  	unsigned int flags;	/* R/O: result */
  	char reserved[64];	/* for future use */
  };
  
  
  /*

   *  IOCTL commands
   */
  
  #define SNDRV_SEQ_IOCTL_PVERSION	_IOR ('S', 0x00, int)
  #define SNDRV_SEQ_IOCTL_CLIENT_ID	_IOR ('S', 0x01, int)

  #define SNDRV_SEQ_IOCTL_SYSTEM_INFO	_IOWR('S', 0x02, struct snd_seq_system_info)
  #define SNDRV_SEQ_IOCTL_RUNNING_MODE	_IOWR('S', 0x03, struct snd_seq_running_info)
  
  #define SNDRV_SEQ_IOCTL_GET_CLIENT_INFO	_IOWR('S', 0x10, struct snd_seq_client_info)
  #define SNDRV_SEQ_IOCTL_SET_CLIENT_INFO	_IOW ('S', 0x11, struct snd_seq_client_info)
  
  #define SNDRV_SEQ_IOCTL_CREATE_PORT	_IOWR('S', 0x20, struct snd_seq_port_info)
  #define SNDRV_SEQ_IOCTL_DELETE_PORT	_IOW ('S', 0x21, struct snd_seq_port_info)
  #define SNDRV_SEQ_IOCTL_GET_PORT_INFO	_IOWR('S', 0x22, struct snd_seq_port_info)
  #define SNDRV_SEQ_IOCTL_SET_PORT_INFO	_IOW ('S', 0x23, struct snd_seq_port_info)
  
  #define SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT	_IOW ('S', 0x30, struct snd_seq_port_subscribe)
  #define SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT _IOW ('S', 0x31, struct snd_seq_port_subscribe)
  
  #define SNDRV_SEQ_IOCTL_CREATE_QUEUE	_IOWR('S', 0x32, struct snd_seq_queue_info)
  #define SNDRV_SEQ_IOCTL_DELETE_QUEUE	_IOW ('S', 0x33, struct snd_seq_queue_info)
  #define SNDRV_SEQ_IOCTL_GET_QUEUE_INFO	_IOWR('S', 0x34, struct snd_seq_queue_info)
  #define SNDRV_SEQ_IOCTL_SET_QUEUE_INFO	_IOWR('S', 0x35, struct snd_seq_queue_info)
  #define SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE	_IOWR('S', 0x36, struct snd_seq_queue_info)
  #define SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS _IOWR('S', 0x40, struct snd_seq_queue_status)
  #define SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO	_IOWR('S', 0x41, struct snd_seq_queue_tempo)
  #define SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO	_IOW ('S', 0x42, struct snd_seq_queue_tempo)
  #define SNDRV_SEQ_IOCTL_GET_QUEUE_OWNER	_IOWR('S', 0x43, struct snd_seq_queue_owner)
  #define SNDRV_SEQ_IOCTL_SET_QUEUE_OWNER	_IOW ('S', 0x44, struct snd_seq_queue_owner)
  #define SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER	_IOWR('S', 0x45, struct snd_seq_queue_timer)
  #define SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER	_IOW ('S', 0x46, struct snd_seq_queue_timer)

  /* XXX

  #define SNDRV_SEQ_IOCTL_GET_QUEUE_SYNC	_IOWR('S', 0x53, struct snd_seq_queue_sync)
  #define SNDRV_SEQ_IOCTL_SET_QUEUE_SYNC	_IOW ('S', 0x54, struct snd_seq_queue_sync)

  */

  #define SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT	_IOWR('S', 0x49, struct snd_seq_queue_client)
  #define SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT	_IOW ('S', 0x4a, struct snd_seq_queue_client)
  #define SNDRV_SEQ_IOCTL_GET_CLIENT_POOL	_IOWR('S', 0x4b, struct snd_seq_client_pool)
  #define SNDRV_SEQ_IOCTL_SET_CLIENT_POOL	_IOW ('S', 0x4c, struct snd_seq_client_pool)
  #define SNDRV_SEQ_IOCTL_REMOVE_EVENTS	_IOW ('S', 0x4e, struct snd_seq_remove_events)
  #define SNDRV_SEQ_IOCTL_QUERY_SUBS	_IOWR('S', 0x4f, struct snd_seq_query_subs)
  #define SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION	_IOWR('S', 0x50, struct snd_seq_port_subscribe)
  #define SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT	_IOWR('S', 0x51, struct snd_seq_client_info)
  #define SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT	_IOWR('S', 0x52, struct snd_seq_port_info)

  
  #endif /* __SOUND_ASEQUENCER_H */