LXR linux/include/uapi/sound/asequencer.h

   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 _UAPI__SOUND_ASEQUENCER_H
  23#define _UAPI__SOUND_ASEQUENCER_H
  24
  25#include <sound/asound.h>
  26
  27/** version of the sequencer */
  28#define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 2)
  29
  30/**
  31 * definition of sequencer event types
  32 */
  33
  34/** system messages
  35 * event data type = #snd_seq_result
  36 */
  37#define SNDRV_SEQ_EVENT_SYSTEM          0
  38#define SNDRV_SEQ_EVENT_RESULT          1
  39
  40/** note messages (channel specific)
  41 * event data type = #snd_seq_ev_note
  42 */
  43#define SNDRV_SEQ_EVENT_NOTE            5
  44#define SNDRV_SEQ_EVENT_NOTEON          6
  45#define SNDRV_SEQ_EVENT_NOTEOFF         7
  46#define SNDRV_SEQ_EVENT_KEYPRESS        8
  47        
  48/** control messages (channel specific)
  49 * event data type = #snd_seq_ev_ctrl
  50 */
  51#define SNDRV_SEQ_EVENT_CONTROLLER      10
  52#define SNDRV_SEQ_EVENT_PGMCHANGE       11
  53#define SNDRV_SEQ_EVENT_CHANPRESS       12
  54#define SNDRV_SEQ_EVENT_PITCHBEND       13      /**< from -8192 to 8191 */
  55#define SNDRV_SEQ_EVENT_CONTROL14       14      /**< 14 bit controller value */
  56#define SNDRV_SEQ_EVENT_NONREGPARAM     15      /**< 14 bit NRPN address + 14 bit unsigned value */
  57#define SNDRV_SEQ_EVENT_REGPARAM        16      /**< 14 bit RPN address + 14 bit unsigned value */
  58
  59/** synchronisation messages
  60 * event data type = #snd_seq_ev_ctrl
  61 */
  62#define SNDRV_SEQ_EVENT_SONGPOS         20      /* Song Position Pointer with LSB and MSB values */
  63#define SNDRV_SEQ_EVENT_SONGSEL         21      /* Song Select with song ID number */
  64#define SNDRV_SEQ_EVENT_QFRAME          22      /* midi time code quarter frame */
  65#define SNDRV_SEQ_EVENT_TIMESIGN        23      /* SMF Time Signature event */
  66#define SNDRV_SEQ_EVENT_KEYSIGN         24      /* SMF Key Signature event */
  67                
  68/** timer messages
  69 * event data type = snd_seq_ev_queue_control
  70 */
  71#define SNDRV_SEQ_EVENT_START           30      /* midi Real Time Start message */
  72#define SNDRV_SEQ_EVENT_CONTINUE        31      /* midi Real Time Continue message */
  73#define SNDRV_SEQ_EVENT_STOP            32      /* midi Real Time Stop message */       
  74#define SNDRV_SEQ_EVENT_SETPOS_TICK     33      /* set tick queue position */
  75#define SNDRV_SEQ_EVENT_SETPOS_TIME     34      /* set realtime queue position */
  76#define SNDRV_SEQ_EVENT_TEMPO           35      /* (SMF) Tempo event */
  77#define SNDRV_SEQ_EVENT_CLOCK           36      /* midi Real Time Clock message */
  78#define SNDRV_SEQ_EVENT_TICK            37      /* midi Real Time Tick message */
  79#define SNDRV_SEQ_EVENT_QUEUE_SKEW      38      /* skew queue tempo */
  80
  81/** others
  82 * event data type = none
  83 */
  84#define SNDRV_SEQ_EVENT_TUNE_REQUEST    40      /* tune request */
  85#define SNDRV_SEQ_EVENT_RESET           41      /* reset to power-on state */
  86#define SNDRV_SEQ_EVENT_SENSING         42      /* "active sensing" event */
  87
  88/** echo back, kernel private messages
  89 * event data type = any type
  90 */
  91#define SNDRV_SEQ_EVENT_ECHO            50      /* echo event */
  92#define SNDRV_SEQ_EVENT_OSS             51      /* OSS raw event */
  93
  94/** system status messages (broadcast for subscribers)
  95 * event data type = snd_seq_addr
  96 */
  97#define SNDRV_SEQ_EVENT_CLIENT_START    60      /* new client has connected */
  98#define SNDRV_SEQ_EVENT_CLIENT_EXIT     61      /* client has left the system */
  99#define SNDRV_SEQ_EVENT_CLIENT_CHANGE   62      /* client status/info has changed */
 100#define SNDRV_SEQ_EVENT_PORT_START      63      /* new port was created */
 101#define SNDRV_SEQ_EVENT_PORT_EXIT       64      /* port was deleted from system */
 102#define SNDRV_SEQ_EVENT_PORT_CHANGE     65      /* port status/info has changed */
 103
 104/** port connection changes
 105 * event data type = snd_seq_connect
 106 */
 107#define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED 66      /* ports connected */
 108#define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67    /* ports disconnected */
 109
 110/* 70-89:  synthesizer events - obsoleted */
 111
 112/** user-defined events with fixed length
 113 * event data type = any
 114 */
 115#define SNDRV_SEQ_EVENT_USR0            90
 116#define SNDRV_SEQ_EVENT_USR1            91
 117#define SNDRV_SEQ_EVENT_USR2            92
 118#define SNDRV_SEQ_EVENT_USR3            93
 119#define SNDRV_SEQ_EVENT_USR4            94
 120#define SNDRV_SEQ_EVENT_USR5            95
 121#define SNDRV_SEQ_EVENT_USR6            96
 122#define SNDRV_SEQ_EVENT_USR7            97
 123#define SNDRV_SEQ_EVENT_USR8            98
 124#define SNDRV_SEQ_EVENT_USR9            99
 125
 126/* 100-118: instrument layer - obsoleted */
 127/* 119-129: reserved */
 128
 129/* 130-139: variable length events
 130 * event data type = snd_seq_ev_ext
 131 * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
 132 */
 133#define SNDRV_SEQ_EVENT_SYSEX           130     /* system exclusive data (variable length) */
 134#define SNDRV_SEQ_EVENT_BOUNCE          131     /* error event */
 135/* 132-134: reserved */
 136#define SNDRV_SEQ_EVENT_USR_VAR0        135
 137#define SNDRV_SEQ_EVENT_USR_VAR1        136
 138#define SNDRV_SEQ_EVENT_USR_VAR2        137
 139#define SNDRV_SEQ_EVENT_USR_VAR3        138
 140#define SNDRV_SEQ_EVENT_USR_VAR4        139
 141
 142/* 150-151: kernel events with quote - DO NOT use in user clients */
 143#define SNDRV_SEQ_EVENT_KERNEL_ERROR    150
 144#define SNDRV_SEQ_EVENT_KERNEL_QUOTE    151     /* obsolete */
 145
 146/* 152-191: reserved */
 147
 148/* 192-254: hardware specific events */
 149
 150/* 255: special event */
 151#define SNDRV_SEQ_EVENT_NONE            255
 152
 153
 154typedef unsigned char snd_seq_event_type_t;
 155
 156/** event address */
 157struct snd_seq_addr {
 158        unsigned char client;   /**< Client number:         0..255, 255 = broadcast to all clients */
 159        unsigned char port;     /**< Port within client:    0..255, 255 = broadcast to all ports */
 160};
 161
 162/** port connection */
 163struct snd_seq_connect {
 164        struct snd_seq_addr sender;
 165        struct snd_seq_addr dest;
 166};
 167
 168
 169#define SNDRV_SEQ_ADDRESS_UNKNOWN       253     /* unknown source */
 170#define SNDRV_SEQ_ADDRESS_SUBSCRIBERS   254     /* send event to all subscribed ports */
 171#define SNDRV_SEQ_ADDRESS_BROADCAST     255     /* send event to all queues/clients/ports/channels */
 172#define SNDRV_SEQ_QUEUE_DIRECT          253     /* direct dispatch */
 173
 174        /* event mode flag - NOTE: only 8 bits available! */
 175#define SNDRV_SEQ_TIME_STAMP_TICK       (0<<0) /* timestamp in clock ticks */
 176#define SNDRV_SEQ_TIME_STAMP_REAL       (1<<0) /* timestamp in real time */
 177#define SNDRV_SEQ_TIME_STAMP_MASK       (1<<0)
 178
 179#define SNDRV_SEQ_TIME_MODE_ABS         (0<<1)  /* absolute timestamp */
 180#define SNDRV_SEQ_TIME_MODE_REL         (1<<1)  /* relative to current time */
 181#define SNDRV_SEQ_TIME_MODE_MASK        (1<<1)
 182
 183#define SNDRV_SEQ_EVENT_LENGTH_FIXED    (0<<2)  /* fixed event size */
 184#define SNDRV_SEQ_EVENT_LENGTH_VARIABLE (1<<2)  /* variable event size */
 185#define SNDRV_SEQ_EVENT_LENGTH_VARUSR   (2<<2)  /* variable event size - user memory space */
 186#define SNDRV_SEQ_EVENT_LENGTH_MASK     (3<<2)
 187
 188#define SNDRV_SEQ_PRIORITY_NORMAL       (0<<4)  /* normal priority */
 189#define SNDRV_SEQ_PRIORITY_HIGH         (1<<4)  /* event should be processed before others */
 190#define SNDRV_SEQ_PRIORITY_MASK         (1<<4)
 191
 192
 193        /* note event */
 194struct snd_seq_ev_note {
 195        unsigned char channel;
 196        unsigned char note;
 197        unsigned char velocity;
 198        unsigned char off_velocity;     /* only for SNDRV_SEQ_EVENT_NOTE */
 199        unsigned int duration;          /* only for SNDRV_SEQ_EVENT_NOTE */
 200};
 201
 202        /* controller event */
 203struct snd_seq_ev_ctrl {
 204        unsigned char channel;
 205        unsigned char unused1, unused2, unused3;        /* pad */
 206        unsigned int param;
 207        signed int value;
 208};
 209
 210        /* generic set of bytes (12x8 bit) */
 211struct snd_seq_ev_raw8 {
 212        unsigned char d[12];    /* 8 bit value */
 213};
 214
 215        /* generic set of integers (3x32 bit) */
 216struct snd_seq_ev_raw32 {
 217        unsigned int d[3];      /* 32 bit value */
 218};
 219
 220        /* external stored data */
 221struct snd_seq_ev_ext {
 222        unsigned int len;       /* length of data */
 223        void *ptr;              /* pointer to data (note: maybe 64-bit) */
 224} __attribute__((packed));
 225
 226struct snd_seq_result {
 227        int event;              /* processed event type */
 228        int result;
 229};
 230
 231
 232struct snd_seq_real_time {
 233        unsigned int tv_sec;    /* seconds */
 234        unsigned int tv_nsec;   /* nanoseconds */
 235};
 236
 237typedef unsigned int snd_seq_tick_time_t;       /* midi ticks */
 238
 239union snd_seq_timestamp {
 240        snd_seq_tick_time_t tick;
 241        struct snd_seq_real_time time;
 242};
 243
 244struct snd_seq_queue_skew {
 245        unsigned int value;
 246        unsigned int base;
 247};
 248
 249        /* queue timer control */
 250struct snd_seq_ev_queue_control {
 251        unsigned char queue;                    /* affected queue */
 252        unsigned char pad[3];                   /* reserved */
 253        union {
 254                signed int value;               /* affected value (e.g. tempo) */
 255                union snd_seq_timestamp time;   /* time */
 256                unsigned int position;          /* sync position */
 257                struct snd_seq_queue_skew skew;
 258                unsigned int d32[2];
 259                unsigned char d8[8];
 260        } param;
 261};
 262
 263        /* quoted event - inside the kernel only */
 264struct snd_seq_ev_quote {
 265        struct snd_seq_addr origin;             /* original sender */
 266        unsigned short value;           /* optional data */
 267        struct snd_seq_event *event;            /* quoted event */
 268} __attribute__((packed));
 269
 270
 271        /* sequencer event */
 272struct snd_seq_event {
 273        snd_seq_event_type_t type;      /* event type */
 274        unsigned char flags;            /* event flags */
 275        char tag;
 276        
 277        unsigned char queue;            /* schedule queue */
 278        union snd_seq_timestamp time;   /* schedule time */
 279
 280
 281        struct snd_seq_addr source;     /* source address */
 282        struct snd_seq_addr dest;       /* destination address */
 283
 284        union {                         /* event data... */
 285                struct snd_seq_ev_note note;
 286                struct snd_seq_ev_ctrl control;
 287                struct snd_seq_ev_raw8 raw8;
 288                struct snd_seq_ev_raw32 raw32;
 289                struct snd_seq_ev_ext ext;
 290                struct snd_seq_ev_queue_control queue;
 291                union snd_seq_timestamp time;
 292                struct snd_seq_addr addr;
 293                struct snd_seq_connect connect;
 294                struct snd_seq_result result;
 295                struct snd_seq_ev_quote quote;
 296        } data;
 297};
 298
 299
 300/*
 301 * bounce event - stored as variable size data
 302 */
 303struct snd_seq_event_bounce {
 304        int err;
 305        struct snd_seq_event event;
 306        /* external data follows here. */
 307};
 308
 309
 310        /* system information */
 311struct snd_seq_system_info {
 312        int queues;                     /* maximum queues count */
 313        int clients;                    /* maximum clients count */
 314        int ports;                      /* maximum ports per client */
 315        int channels;                   /* maximum channels per port */
 316        int cur_clients;                /* current clients */
 317        int cur_queues;                 /* current queues */
 318        char reserved[24];
 319};
 320
 321
 322        /* system running information */
 323struct snd_seq_running_info {
 324        unsigned char client;           /* client id */
 325        unsigned char big_endian;       /* 1 = big-endian */
 326        unsigned char cpu_mode;         /* 4 = 32bit, 8 = 64bit */
 327        unsigned char pad;              /* reserved */
 328        unsigned char reserved[12];
 329};
 330
 331
 332        /* known client numbers */
 333#define SNDRV_SEQ_CLIENT_SYSTEM         0
 334        /* internal client numbers */
 335#define SNDRV_SEQ_CLIENT_DUMMY          14      /* midi through */
 336#define SNDRV_SEQ_CLIENT_OSS            15      /* oss sequencer emulator */
 337
 338
 339        /* client types */
 340typedef int __bitwise snd_seq_client_type_t;
 341#define NO_CLIENT       ((__force snd_seq_client_type_t) 0)
 342#define USER_CLIENT     ((__force snd_seq_client_type_t) 1)
 343#define KERNEL_CLIENT   ((__force snd_seq_client_type_t) 2)
 344                        
 345        /* event filter flags */
 346#define SNDRV_SEQ_FILTER_BROADCAST      (1<<0)  /* accept broadcast messages */
 347#define SNDRV_SEQ_FILTER_MULTICAST      (1<<1)  /* accept multicast messages */
 348#define SNDRV_SEQ_FILTER_BOUNCE         (1<<2)  /* accept bounce event in error */
 349#define SNDRV_SEQ_FILTER_USE_EVENT      (1<<31) /* use event filter */
 350
 351struct snd_seq_client_info {
 352        int client;                     /* client number to inquire */
 353        snd_seq_client_type_t type;     /* client type */
 354        char name[64];                  /* client name */
 355        unsigned int filter;            /* filter flags */
 356        unsigned char multicast_filter[8]; /* multicast filter bitmap */
 357        unsigned char event_filter[32]; /* event filter bitmap */
 358        int num_ports;                  /* RO: number of ports */
 359        int event_lost;                 /* number of lost events */
 360        int card;                       /* RO: card number[kernel] */
 361        int pid;                        /* RO: pid[user] */
 362        char reserved[56];              /* for future use */
 363};
 364
 365
 366/* client pool size */
 367struct snd_seq_client_pool {
 368        int client;                     /* client number to inquire */
 369        int output_pool;                /* outgoing (write) pool size */
 370        int input_pool;                 /* incoming (read) pool size */
 371        int output_room;                /* minimum free pool size for select/blocking mode */
 372        int output_free;                /* unused size */
 373        int input_free;                 /* unused size */
 374        char reserved[64];
 375};
 376
 377
 378/* Remove events by specified criteria */
 379
 380#define SNDRV_SEQ_REMOVE_INPUT          (1<<0)  /* Flush input queues */
 381#define SNDRV_SEQ_REMOVE_OUTPUT         (1<<1)  /* Flush output queues */
 382#define SNDRV_SEQ_REMOVE_DEST           (1<<2)  /* Restrict by destination q:client:port */
 383#define SNDRV_SEQ_REMOVE_DEST_CHANNEL   (1<<3)  /* Restrict by channel */
 384#define SNDRV_SEQ_REMOVE_TIME_BEFORE    (1<<4)  /* Restrict to before time */
 385#define SNDRV_SEQ_REMOVE_TIME_AFTER     (1<<5)  /* Restrict to time or after */
 386#define SNDRV_SEQ_REMOVE_TIME_TICK      (1<<6)  /* Time is in ticks */
 387#define SNDRV_SEQ_REMOVE_EVENT_TYPE     (1<<7)  /* Restrict to event type */
 388#define SNDRV_SEQ_REMOVE_IGNORE_OFF     (1<<8)  /* Do not flush off events */
 389#define SNDRV_SEQ_REMOVE_TAG_MATCH      (1<<9)  /* Restrict to events with given tag */
 390
 391struct snd_seq_remove_events {
 392        unsigned int  remove_mode;      /* Flags that determine what gets removed */
 393
 394        union snd_seq_timestamp time;
 395
 396        unsigned char queue;    /* Queue for REMOVE_DEST */
 397        struct snd_seq_addr dest;       /* Address for REMOVE_DEST */
 398        unsigned char channel;  /* Channel for REMOVE_DEST */
 399
 400        int  type;      /* For REMOVE_EVENT_TYPE */
 401        char  tag;      /* Tag for REMOVE_TAG */
 402
 403        int  reserved[10];      /* To allow for future binary compatibility */
 404
 405};
 406
 407
 408        /* known port numbers */
 409#define SNDRV_SEQ_PORT_SYSTEM_TIMER     0
 410#define SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE  1
 411
 412        /* port capabilities (32 bits) */
 413#define SNDRV_SEQ_PORT_CAP_READ         (1<<0)  /* readable from this port */
 414#define SNDRV_SEQ_PORT_CAP_WRITE        (1<<1)  /* writable to this port */
 415
 416#define SNDRV_SEQ_PORT_CAP_SYNC_READ    (1<<2)
 417#define SNDRV_SEQ_PORT_CAP_SYNC_WRITE   (1<<3)
 418
 419#define SNDRV_SEQ_PORT_CAP_DUPLEX       (1<<4)
 420
 421#define SNDRV_SEQ_PORT_CAP_SUBS_READ    (1<<5)  /* allow read subscription */
 422#define SNDRV_SEQ_PORT_CAP_SUBS_WRITE   (1<<6)  /* allow write subscription */
 423#define SNDRV_SEQ_PORT_CAP_NO_EXPORT    (1<<7)  /* routing not allowed */
 424
 425        /* port type */
 426#define SNDRV_SEQ_PORT_TYPE_SPECIFIC    (1<<0)  /* hardware specific */
 427#define SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1) /* generic MIDI device */
 428#define SNDRV_SEQ_PORT_TYPE_MIDI_GM     (1<<2)  /* General MIDI compatible device */
 429#define SNDRV_SEQ_PORT_TYPE_MIDI_GS     (1<<3)  /* GS compatible device */
 430#define SNDRV_SEQ_PORT_TYPE_MIDI_XG     (1<<4)  /* XG compatible device */
 431#define SNDRV_SEQ_PORT_TYPE_MIDI_MT32   (1<<5)  /* MT-32 compatible device */
 432#define SNDRV_SEQ_PORT_TYPE_MIDI_GM2    (1<<6)  /* General MIDI 2 compatible device */
 433
 434/* other standards...*/
 435#define SNDRV_SEQ_PORT_TYPE_SYNTH       (1<<10) /* Synth device (no MIDI compatible - direct wavetable) */
 436#define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)       /* Sampling device (support sample download) */
 437#define SNDRV_SEQ_PORT_TYPE_SAMPLE      (1<<12) /* Sampling device (sample can be downloaded at any time) */
 438/*...*/
 439#define SNDRV_SEQ_PORT_TYPE_HARDWARE    (1<<16) /* driver for a hardware device */
 440#define SNDRV_SEQ_PORT_TYPE_SOFTWARE    (1<<17) /* implemented in software */
 441#define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER (1<<18) /* generates sound */
 442#define SNDRV_SEQ_PORT_TYPE_PORT        (1<<19) /* connects to other device(s) */
 443#define SNDRV_SEQ_PORT_TYPE_APPLICATION (1<<20) /* application (sequencer/editor) */
 444
 445/* misc. conditioning flags */
 446#define SNDRV_SEQ_PORT_FLG_GIVEN_PORT   (1<<0)
 447#define SNDRV_SEQ_PORT_FLG_TIMESTAMP    (1<<1)
 448#define SNDRV_SEQ_PORT_FLG_TIME_REAL    (1<<2)
 449
 450struct snd_seq_port_info {
 451        struct snd_seq_addr addr;       /* client/port numbers */
 452        char name[64];                  /* port name */
 453
 454        unsigned int capability;        /* port capability bits */
 455        unsigned int type;              /* port type bits */
 456        int midi_channels;              /* channels per MIDI port */
 457        int midi_voices;                /* voices per MIDI port */
 458        int synth_voices;               /* voices per SYNTH port */
 459
 460        int read_use;                   /* R/O: subscribers for output (from this port) */
 461        int write_use;                  /* R/O: subscribers for input (to this port) */
 462
 463        void *kernel;                   /* reserved for kernel use (must be NULL) */
 464        unsigned int flags;             /* misc. conditioning */
 465        unsigned char time_queue;       /* queue # for timestamping */
 466        char reserved[59];              /* for future use */
 467};
 468
 469
 470/* queue flags */
 471#define SNDRV_SEQ_QUEUE_FLG_SYNC        (1<<0)  /* sync enabled */
 472
 473/* queue information */
 474struct snd_seq_queue_info {
 475        int queue;              /* queue id */
 476
 477        /*
 478         *  security settings, only owner of this queue can start/stop timer
 479         *  etc. if the queue is locked for other clients
 480         */
 481        int owner;              /* client id for owner of the queue */
 482        unsigned locked:1;      /* timing queue locked for other queues */
 483        char name[64];          /* name of this queue */
 484        unsigned int flags;     /* flags */
 485        char reserved[60];      /* for future use */
 486
 487};
 488
 489/* queue info/status */
 490struct snd_seq_queue_status {
 491        int queue;                      /* queue id */
 492        int events;                     /* read-only - queue size */
 493        snd_seq_tick_time_t tick;       /* current tick */
 494        struct snd_seq_real_time time;  /* current time */
 495        int running;                    /* running state of queue */
 496        int flags;                      /* various flags */
 497        char reserved[64];              /* for the future */
 498};
 499
 500
 501/* queue tempo */
 502struct snd_seq_queue_tempo {
 503        int queue;                      /* sequencer queue */
 504        unsigned int tempo;             /* current tempo, us/tick */
 505        int ppq;                        /* time resolution, ticks/quarter */
 506        unsigned int skew_value;        /* queue skew */
 507        unsigned int skew_base;         /* queue skew base */
 508        char reserved[24];              /* for the future */
 509};
 510
 511
 512/* sequencer timer sources */
 513#define SNDRV_SEQ_TIMER_ALSA            0       /* ALSA timer */
 514#define SNDRV_SEQ_TIMER_MIDI_CLOCK      1       /* Midi Clock (CLOCK event) */
 515#define SNDRV_SEQ_TIMER_MIDI_TICK       2       /* Midi Timer Tick (TICK event) */
 516
 517/* queue timer info */
 518struct snd_seq_queue_timer {
 519        int queue;                      /* sequencer queue */
 520        int type;                       /* source timer type */
 521        union {
 522                struct {
 523                        struct snd_timer_id id; /* ALSA's timer ID */
 524                        unsigned int resolution;        /* resolution in Hz */
 525                } alsa;
 526        } u;
 527        char reserved[64];              /* for the future use */
 528};
 529
 530
 531struct snd_seq_queue_client {
 532        int queue;              /* sequencer queue */
 533        int client;             /* sequencer client */
 534        int used;               /* queue is used with this client
 535                                   (must be set for accepting events) */
 536        /* per client watermarks */
 537        char reserved[64];      /* for future use */
 538};
 539
 540
 541#define SNDRV_SEQ_PORT_SUBS_EXCLUSIVE   (1<<0)  /* exclusive connection */
 542#define SNDRV_SEQ_PORT_SUBS_TIMESTAMP   (1<<1)
 543#define SNDRV_SEQ_PORT_SUBS_TIME_REAL   (1<<2)
 544
 545struct snd_seq_port_subscribe {
 546        struct snd_seq_addr sender;     /* sender address */
 547        struct snd_seq_addr dest;       /* destination address */
 548        unsigned int voices;            /* number of voices to be allocated (0 = don't care) */
 549        unsigned int flags;             /* modes */
 550        unsigned char queue;            /* input time-stamp queue (optional) */
 551        unsigned char pad[3];           /* reserved */
 552        char reserved[64];
 553};
 554
 555/* type of query subscription */
 556#define SNDRV_SEQ_QUERY_SUBS_READ       0
 557#define SNDRV_SEQ_QUERY_SUBS_WRITE      1
 558
 559struct snd_seq_query_subs {
 560        struct snd_seq_addr root;       /* client/port id to be searched */
 561        int type;               /* READ or WRITE */
 562        int index;              /* 0..N-1 */
 563        int num_subs;           /* R/O: number of subscriptions on this port */
 564        struct snd_seq_addr addr;       /* R/O: result */
 565        unsigned char queue;    /* R/O: result */
 566        unsigned int flags;     /* R/O: result */
 567        char reserved[64];      /* for future use */
 568};
 569
 570
 571/*
 572 *  IOCTL commands
 573 */
 574
 575#define SNDRV_SEQ_IOCTL_PVERSION        _IOR ('S', 0x00, int)
 576#define SNDRV_SEQ_IOCTL_CLIENT_ID       _IOR ('S', 0x01, int)
 577#define SNDRV_SEQ_IOCTL_SYSTEM_INFO     _IOWR('S', 0x02, struct snd_seq_system_info)
 578#define SNDRV_SEQ_IOCTL_RUNNING_MODE    _IOWR('S', 0x03, struct snd_seq_running_info)
 579
 580#define SNDRV_SEQ_IOCTL_GET_CLIENT_INFO _IOWR('S', 0x10, struct snd_seq_client_info)
 581#define SNDRV_SEQ_IOCTL_SET_CLIENT_INFO _IOW ('S', 0x11, struct snd_seq_client_info)
 582
 583#define SNDRV_SEQ_IOCTL_CREATE_PORT     _IOWR('S', 0x20, struct snd_seq_port_info)
 584#define SNDRV_SEQ_IOCTL_DELETE_PORT     _IOW ('S', 0x21, struct snd_seq_port_info)
 585#define SNDRV_SEQ_IOCTL_GET_PORT_INFO   _IOWR('S', 0x22, struct snd_seq_port_info)
 586#define SNDRV_SEQ_IOCTL_SET_PORT_INFO   _IOW ('S', 0x23, struct snd_seq_port_info)
 587
 588#define SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT  _IOW ('S', 0x30, struct snd_seq_port_subscribe)
 589#define SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT _IOW ('S', 0x31, struct snd_seq_port_subscribe)
 590
 591#define SNDRV_SEQ_IOCTL_CREATE_QUEUE    _IOWR('S', 0x32, struct snd_seq_queue_info)
 592#define SNDRV_SEQ_IOCTL_DELETE_QUEUE    _IOW ('S', 0x33, struct snd_seq_queue_info)
 593#define SNDRV_SEQ_IOCTL_GET_QUEUE_INFO  _IOWR('S', 0x34, struct snd_seq_queue_info)
 594#define SNDRV_SEQ_IOCTL_SET_QUEUE_INFO  _IOWR('S', 0x35, struct snd_seq_queue_info)
 595#define SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE _IOWR('S', 0x36, struct snd_seq_queue_info)
 596#define SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS _IOWR('S', 0x40, struct snd_seq_queue_status)
 597#define SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO _IOWR('S', 0x41, struct snd_seq_queue_tempo)
 598#define SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO _IOW ('S', 0x42, struct snd_seq_queue_tempo)
 599#define SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER _IOWR('S', 0x45, struct snd_seq_queue_timer)
 600#define SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER _IOW ('S', 0x46, struct snd_seq_queue_timer)
 601#define SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT        _IOWR('S', 0x49, struct snd_seq_queue_client)
 602#define SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT        _IOW ('S', 0x4a, struct snd_seq_queue_client)
 603#define SNDRV_SEQ_IOCTL_GET_CLIENT_POOL _IOWR('S', 0x4b, struct snd_seq_client_pool)
 604#define SNDRV_SEQ_IOCTL_SET_CLIENT_POOL _IOW ('S', 0x4c, struct snd_seq_client_pool)
 605#define SNDRV_SEQ_IOCTL_REMOVE_EVENTS   _IOW ('S', 0x4e, struct snd_seq_remove_events)
 606#define SNDRV_SEQ_IOCTL_QUERY_SUBS      _IOWR('S', 0x4f, struct snd_seq_query_subs)
 607#define SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION        _IOWR('S', 0x50, struct snd_seq_port_subscribe)
 608#define SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT       _IOWR('S', 0x51, struct snd_seq_client_info)
 609#define SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT _IOWR('S', 0x52, struct snd_seq_port_info)
 610
 611#endif /* _UAPI__SOUND_ASEQUENCER_H */
 612