include/uapi/sound/asequencer.h

   1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
   2 /*
   3  *  Main header file for the ALSA sequencer
   4  *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
   5  *            (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
   6  *
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  *
  22  */
  23 #ifndef _UAPI__SOUND_ASEQUENCER_H
  24 #define _UAPI__SOUND_ASEQUENCER_H
  25
  26 #include <sound/asound.h>
  27
  28 /** version of the sequencer */
  29 #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 2)
  30
  31 /**
  32  * definition of sequencer event types
  33  */
  34
  35 /** system messages
  36  * event data type = #snd_seq_result
  37  */
  38 #define SNDRV_SEQ_EVENT_SYSTEM          0
  39 #define SNDRV_SEQ_EVENT_RESULT          1
  40
  41 /** note messages (channel specific)
  42  * event data type = #snd_seq_ev_note
  43  */
  44 #define SNDRV_SEQ_EVENT_NOTE            5
  45 #define SNDRV_SEQ_EVENT_NOTEON          6
  46 #define SNDRV_SEQ_EVENT_NOTEOFF         7
  47 #define SNDRV_SEQ_EVENT_KEYPRESS        8
  48
  49 /** control messages (channel specific)
  50  * event data type = #snd_seq_ev_ctrl
  51  */
  52 #define SNDRV_SEQ_EVENT_CONTROLLER      10
  53 #define SNDRV_SEQ_EVENT_PGMCHANGE       11
  54 #define SNDRV_SEQ_EVENT_CHANPRESS       12
  55 #define SNDRV_SEQ_EVENT_PITCHBEND       13      /**< from -8192 to 8191 */
  56 #define SNDRV_SEQ_EVENT_CONTROL14       14      /**< 14 bit controller value */
  57 #define SNDRV_SEQ_EVENT_NONREGPARAM     15      /**< 14 bit NRPN address + 14 bit unsigned value */
  58 #define SNDRV_SEQ_EVENT_REGPARAM        16      /**< 14 bit RPN address + 14 bit unsigned value */
  59
  60 /** synchronisation messages
  61  * event data type = #snd_seq_ev_ctrl
  62  */
  63 #define SNDRV_SEQ_EVENT_SONGPOS         20      /* Song Position Pointer with LSB and MSB values */
  64 #define SNDRV_SEQ_EVENT_SONGSEL         21      /* Song Select with song ID number */
  65 #define SNDRV_SEQ_EVENT_QFRAME          22      /* midi time code quarter frame */
  66 #define SNDRV_SEQ_EVENT_TIMESIGN        23      /* SMF Time Signature event */
  67 #define SNDRV_SEQ_EVENT_KEYSIGN         24      /* SMF Key Signature event */
  68
  69 /** timer messages
  70  * event data type = snd_seq_ev_queue_control
  71  */
  72 #define SNDRV_SEQ_EVENT_START           30      /* midi Real Time Start message */
  73 #define SNDRV_SEQ_EVENT_CONTINUE        31      /* midi Real Time Continue message */
  74 #define SNDRV_SEQ_EVENT_STOP            32      /* midi Real Time Stop message */
  75 #define SNDRV_SEQ_EVENT_SETPOS_TICK     33      /* set tick queue position */
  76 #define SNDRV_SEQ_EVENT_SETPOS_TIME     34      /* set realtime queue position */
  77 #define SNDRV_SEQ_EVENT_TEMPO           35      /* (SMF) Tempo event */
  78 #define SNDRV_SEQ_EVENT_CLOCK           36      /* midi Real Time Clock message */
  79 #define SNDRV_SEQ_EVENT_TICK            37      /* midi Real Time Tick message */
  80 #define SNDRV_SEQ_EVENT_QUEUE_SKEW      38      /* skew queue tempo */
  81
  82 /** others
  83  * event data type = none
  84  */
  85 #define SNDRV_SEQ_EVENT_TUNE_REQUEST    40      /* tune request */
  86 #define SNDRV_SEQ_EVENT_RESET           41      /* reset to power-on state */
  87 #define SNDRV_SEQ_EVENT_SENSING         42      /* "active sensing" event */
  88
  89 /** echo back, kernel private messages
  90  * event data type = any type
  91  */
  92 #define SNDRV_SEQ_EVENT_ECHO            50      /* echo event */
  93 #define SNDRV_SEQ_EVENT_OSS             51      /* OSS raw event */
  94
  95 /** system status messages (broadcast for subscribers)
  96  * event data type = snd_seq_addr
  97  */
  98 #define SNDRV_SEQ_EVENT_CLIENT_START    60      /* new client has connected */
  99 #define SNDRV_SEQ_EVENT_CLIENT_EXIT     61      /* client has left the system */
 100 #define SNDRV_SEQ_EVENT_CLIENT_CHANGE   62      /* client status/info has changed */
 101 #define SNDRV_SEQ_EVENT_PORT_START      63      /* new port was created */
 102 #define SNDRV_SEQ_EVENT_PORT_EXIT       64      /* port was deleted from system */
 103 #define SNDRV_SEQ_EVENT_PORT_CHANGE     65      /* port status/info has changed */
 104
 105 /** port connection changes
 106  * event data type = snd_seq_connect
 107  */
 108 #define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED 66      /* ports connected */
 109 #define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67    /* ports disconnected */
 110
 111 /* 70-89:  synthesizer events - obsoleted */
 112
 113 /** user-defined events with fixed length
 114  * event data type = any
 115  */
 116 #define SNDRV_SEQ_EVENT_USR0            90
 117 #define SNDRV_SEQ_EVENT_USR1            91
 118 #define SNDRV_SEQ_EVENT_USR2            92
 119 #define SNDRV_SEQ_EVENT_USR3            93
 120 #define SNDRV_SEQ_EVENT_USR4            94
 121 #define SNDRV_SEQ_EVENT_USR5            95
 122 #define SNDRV_SEQ_EVENT_USR6            96
 123 #define SNDRV_SEQ_EVENT_USR7            97
 124 #define SNDRV_SEQ_EVENT_USR8            98
 125 #define SNDRV_SEQ_EVENT_USR9            99
 126
 127 /* 100-118: instrument layer - obsoleted */
 128 /* 119-129: reserved */
 129
 130 /* 130-139: variable length events
 131  * event data type = snd_seq_ev_ext
 132  * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
 133  */
 134 #define SNDRV_SEQ_EVENT_SYSEX           130     /* system exclusive data (variable length) */
 135 #define SNDRV_SEQ_EVENT_BOUNCE          131     /* error event */
 136 /* 132-134: reserved */
 137 #define SNDRV_SEQ_EVENT_USR_VAR0        135
 138 #define SNDRV_SEQ_EVENT_USR_VAR1        136
 139 #define SNDRV_SEQ_EVENT_USR_VAR2        137
 140 #define SNDRV_SEQ_EVENT_USR_VAR3        138
 141 #define SNDRV_SEQ_EVENT_USR_VAR4        139
 142
 143 /* 150-151: kernel events with quote - DO NOT use in user clients */
 144 #define SNDRV_SEQ_EVENT_KERNEL_ERROR    150
 145 #define SNDRV_SEQ_EVENT_KERNEL_QUOTE    151     /* obsolete */
 146
 147 /* 152-191: reserved */
 148
 149 /* 192-254: hardware specific events */
 150
 151 /* 255: special event */
 152 #define SNDRV_SEQ_EVENT_NONE            255
 153
 154
 155 typedef unsigned char snd_seq_event_type_t;
 156
 157 /** event address */
 158 struct snd_seq_addr {
 159         unsigned char client;   /**< Client number:         0..255, 255 = broadcast to all clients */
 160         unsigned char port;     /**< Port within client:    0..255, 255 = broadcast to all ports */
 161 };
 162
 163 /** port connection */
 164 struct snd_seq_connect {
 165         struct snd_seq_addr sender;
 166         struct snd_seq_addr dest;
 167 };
 168
 169
 170 #define SNDRV_SEQ_ADDRESS_UNKNOWN       253     /* unknown source */
 171 #define SNDRV_SEQ_ADDRESS_SUBSCRIBERS   254     /* send event to all subscribed ports */
 172 #define SNDRV_SEQ_ADDRESS_BROADCAST     255     /* send event to all queues/clients/ports/channels */
 173 #define SNDRV_SEQ_QUEUE_DIRECT          253     /* direct dispatch */
 174
 175         /* event mode flag - NOTE: only 8 bits available! */
 176 #define SNDRV_SEQ_TIME_STAMP_TICK       (0<<0) /* timestamp in clock ticks */
 177 #define SNDRV_SEQ_TIME_STAMP_REAL       (1<<0) /* timestamp in real time */
 178 #define SNDRV_SEQ_TIME_STAMP_MASK       (1<<0)
 179
 180 #define SNDRV_SEQ_TIME_MODE_ABS         (0<<1)  /* absolute timestamp */
 181 #define SNDRV_SEQ_TIME_MODE_REL         (1<<1)  /* relative to current time */
 182 #define SNDRV_SEQ_TIME_MODE_MASK        (1<<1)
 183
 184 #define SNDRV_SEQ_EVENT_LENGTH_FIXED    (0<<2)  /* fixed event size */
 185 #define SNDRV_SEQ_EVENT_LENGTH_VARIABLE (1<<2)  /* variable event size */
 186 #define SNDRV_SEQ_EVENT_LENGTH_VARUSR   (2<<2)  /* variable event size - user memory space */
 187 #define SNDRV_SEQ_EVENT_LENGTH_MASK     (3<<2)
 188
 189 #define SNDRV_SEQ_PRIORITY_NORMAL       (0<<4)  /* normal priority */
 190 #define SNDRV_SEQ_PRIORITY_HIGH         (1<<4)  /* event should be processed before others */
 191 #define SNDRV_SEQ_PRIORITY_MASK         (1<<4)
 192
 193
 194         /* note event */
 195 struct snd_seq_ev_note {
 196         unsigned char channel;
 197         unsigned char note;
 198         unsigned char velocity;
 199         unsigned char off_velocity;     /* only for SNDRV_SEQ_EVENT_NOTE */
 200         unsigned int duration;          /* only for SNDRV_SEQ_EVENT_NOTE */
 201 };
 202
 203         /* controller event */
 204 struct snd_seq_ev_ctrl {
 205         unsigned char channel;
 206         unsigned char unused1, unused2, unused3;        /* pad */
 207         unsigned int param;
 208         signed int value;
 209 };
 210
 211         /* generic set of bytes (12x8 bit) */
 212 struct snd_seq_ev_raw8 {
 213         unsigned char d[12];    /* 8 bit value */
 214 };
 215
 216         /* generic set of integers (3x32 bit) */
 217 struct snd_seq_ev_raw32 {
 218         unsigned int d[3];      /* 32 bit value */
 219 };
 220
 221         /* external stored data */
 222 struct snd_seq_ev_ext {
 223         unsigned int len;       /* length of data */
 224         void *ptr;              /* pointer to data (note: maybe 64-bit) */
 225 } __attribute__((packed));
 226
 227 struct snd_seq_result {
 228         int event;              /* processed event type */
 229         int result;
 230 };
 231
 232
 233 struct snd_seq_real_time {
 234         unsigned int tv_sec;    /* seconds */
 235         unsigned int tv_nsec;   /* nanoseconds */
 236 };
 237
 238 typedef unsigned int snd_seq_tick_time_t;       /* midi ticks */
 239
 240 union snd_seq_timestamp {
 241         snd_seq_tick_time_t tick;
 242         struct snd_seq_real_time time;
 243 };
 244
 245 struct snd_seq_queue_skew {
 246         unsigned int value;
 247         unsigned int base;
 248 };
 249
 250         /* queue timer control */
 251 struct snd_seq_ev_queue_control {
 252         unsigned char queue;                    /* affected queue */
 253         unsigned char pad[3];                   /* reserved */
 254         union {
 255                 signed int value;               /* affected value (e.g. tempo) */
 256                 union snd_seq_timestamp time;   /* time */
 257                 unsigned int position;          /* sync position */
 258                 struct snd_seq_queue_skew skew;
 259                 unsigned int d32[2];
 260                 unsigned char d8[8];
 261         } param;
 262 };
 263
 264         /* quoted event - inside the kernel only */
 265 struct snd_seq_ev_quote {
 266         struct snd_seq_addr origin;             /* original sender */
 267         unsigned short value;           /* optional data */
 268         struct snd_seq_event *event;            /* quoted event */
 269 } __attribute__((packed));
 270
 271
 272         /* sequencer event */
 273 struct snd_seq_event {
 274         snd_seq_event_type_t type;      /* event type */
 275         unsigned char flags;            /* event flags */
 276         char tag;
 277
 278         unsigned char queue;            /* schedule queue */
 279         union snd_seq_timestamp time;   /* schedule time */
 280
 281
 282         struct snd_seq_addr source;     /* source address */
 283         struct snd_seq_addr dest;       /* destination address */
 284
 285         union {                         /* event data... */
 286                 struct snd_seq_ev_note note;
 287                 struct snd_seq_ev_ctrl control;
 288                 struct snd_seq_ev_raw8 raw8;
 289                 struct snd_seq_ev_raw32 raw32;
 290                 struct snd_seq_ev_ext ext;
 291                 struct snd_seq_ev_queue_control queue;
 292                 union snd_seq_timestamp time;
 293                 struct snd_seq_addr addr;
 294                 struct snd_seq_connect connect;
 295                 struct snd_seq_result result;
 296                 struct snd_seq_ev_quote quote;
 297         } data;
 298 };
 299
 300
 301 /*
 302  * bounce event - stored as variable size data
 303  */
 304 struct snd_seq_event_bounce {
 305         int err;
 306         struct snd_seq_event event;
 307         /* external data follows here. */
 308 };
 309
 310
 311         /* system information */
 312 struct snd_seq_system_info {
 313         int queues;                     /* maximum queues count */
 314         int clients;                    /* maximum clients count */
 315         int ports;                      /* maximum ports per client */
 316         int channels;                   /* maximum channels per port */
 317         int cur_clients;                /* current clients */
 318         int cur_queues;                 /* current queues */
 319         char reserved[24];
 320 };
 321
 322
 323         /* system running information */
 324 struct snd_seq_running_info {
 325         unsigned char client;           /* client id */
 326         unsigned char big_endian;       /* 1 = big-endian */
 327         unsigned char cpu_mode;         /* 4 = 32bit, 8 = 64bit */
 328         unsigned char pad;              /* reserved */
 329         unsigned char reserved[12];
 330 };
 331
 332
 333         /* known client numbers */
 334 #define SNDRV_SEQ_CLIENT_SYSTEM         0
 335         /* internal client numbers */
 336 #define SNDRV_SEQ_CLIENT_DUMMY          14      /* midi through */
 337 #define SNDRV_SEQ_CLIENT_OSS            15      /* oss sequencer emulator */
 338
 339
 340         /* client types */
 341 typedef int __bitwise snd_seq_client_type_t;
 342 #define NO_CLIENT       ((__force snd_seq_client_type_t) 0)
 343 #define USER_CLIENT     ((__force snd_seq_client_type_t) 1)
 344 #define KERNEL_CLIENT   ((__force snd_seq_client_type_t) 2)
 345
 346         /* event filter flags */
 347 #define SNDRV_SEQ_FILTER_BROADCAST      (1<<0)  /* accept broadcast messages */
 348 #define SNDRV_SEQ_FILTER_MULTICAST      (1<<1)  /* accept multicast messages */
 349 #define SNDRV_SEQ_FILTER_BOUNCE         (1<<2)  /* accept bounce event in error */
 350 #define SNDRV_SEQ_FILTER_USE_EVENT      (1<<31) /* use event filter */
 351
 352 struct snd_seq_client_info {
 353         int client;                     /* client number to inquire */
 354         snd_seq_client_type_t type;     /* client type */
 355         char name[64];                  /* client name */
 356         unsigned int filter;            /* filter flags */
 357         unsigned char multicast_filter[8]; /* multicast filter bitmap */
 358         unsigned char event_filter[32]; /* event filter bitmap */
 359         int num_ports;                  /* RO: number of ports */
 360         int event_lost;                 /* number of lost events */
 361         int card;                       /* RO: card number[kernel] */
 362         int pid;                        /* RO: pid[user] */
 363         char reserved[56];              /* for future use */
 364 };
 365
 366
 367 /* client pool size */
 368 struct snd_seq_client_pool {
 369         int client;                     /* client number to inquire */
 370         int output_pool;                /* outgoing (write) pool size */
 371         int input_pool;                 /* incoming (read) pool size */
 372         int output_room;                /* minimum free pool size for select/blocking mode */
 373         int output_free;                /* unused size */
 374         int input_free;                 /* unused size */
 375         char reserved[64];
 376 };
 377
 378
 379 /* Remove events by specified criteria */
 380
 381 #define SNDRV_SEQ_REMOVE_INPUT          (1<<0)  /* Flush input queues */
 382 #define SNDRV_SEQ_REMOVE_OUTPUT         (1<<1)  /* Flush output queues */
 383 #define SNDRV_SEQ_REMOVE_DEST           (1<<2)  /* Restrict by destination q:client:port */
 384 #define SNDRV_SEQ_REMOVE_DEST_CHANNEL   (1<<3)  /* Restrict by channel */
 385 #define SNDRV_SEQ_REMOVE_TIME_BEFORE    (1<<4)  /* Restrict to before time */
 386 #define SNDRV_SEQ_REMOVE_TIME_AFTER     (1<<5)  /* Restrict to time or after */
 387 #define SNDRV_SEQ_REMOVE_TIME_TICK      (1<<6)  /* Time is in ticks */
 388 #define SNDRV_SEQ_REMOVE_EVENT_TYPE     (1<<7)  /* Restrict to event type */
 389 #define SNDRV_SEQ_REMOVE_IGNORE_OFF     (1<<8)  /* Do not flush off events */
 390 #define SNDRV_SEQ_REMOVE_TAG_MATCH      (1<<9)  /* Restrict to events with given tag */
 391
 392 struct snd_seq_remove_events {
 393         unsigned int  remove_mode;      /* Flags that determine what gets removed */
 394
 395         union snd_seq_timestamp time;
 396
 397         unsigned char queue;    /* Queue for REMOVE_DEST */
 398         struct snd_seq_addr dest;       /* Address for REMOVE_DEST */
 399         unsigned char channel;  /* Channel for REMOVE_DEST */
 400
 401         int  type;      /* For REMOVE_EVENT_TYPE */
 402         char  tag;      /* Tag for REMOVE_TAG */
 403
 404         int  reserved[10];      /* To allow for future binary compatibility */
 405
 406 };
 407
 408
 409         /* known port numbers */
 410 #define SNDRV_SEQ_PORT_SYSTEM_TIMER     0
 411 #define SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE  1
 412
 413         /* port capabilities (32 bits) */
 414 #define SNDRV_SEQ_PORT_CAP_READ         (1<<0)  /* readable from this port */
 415 #define SNDRV_SEQ_PORT_CAP_WRITE        (1<<1)  /* writable to this port */
 416
 417 #define SNDRV_SEQ_PORT_CAP_SYNC_READ    (1<<2)
 418 #define SNDRV_SEQ_PORT_CAP_SYNC_WRITE   (1<<3)
 419
 420 #define SNDRV_SEQ_PORT_CAP_DUPLEX       (1<<4)
 421
 422 #define SNDRV_SEQ_PORT_CAP_SUBS_READ    (1<<5)  /* allow read subscription */
 423 #define SNDRV_SEQ_PORT_CAP_SUBS_WRITE   (1<<6)  /* allow write subscription */
 424 #define SNDRV_SEQ_PORT_CAP_NO_EXPORT    (1<<7)  /* routing not allowed */
 425
 426         /* port type */
 427 #define SNDRV_SEQ_PORT_TYPE_SPECIFIC    (1<<0)  /* hardware specific */
 428 #define SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1) /* generic MIDI device */
 429 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM     (1<<2)  /* General MIDI compatible device */
 430 #define SNDRV_SEQ_PORT_TYPE_MIDI_GS     (1<<3)  /* GS compatible device */
 431 #define SNDRV_SEQ_PORT_TYPE_MIDI_XG     (1<<4)  /* XG compatible device */
 432 #define SNDRV_SEQ_PORT_TYPE_MIDI_MT32   (1<<5)  /* MT-32 compatible device */
 433 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM2    (1<<6)  /* General MIDI 2 compatible device */
 434
 435 /* other standards...*/
 436 #define SNDRV_SEQ_PORT_TYPE_SYNTH       (1<<10) /* Synth device (no MIDI compatible - direct wavetable) */
 437 #define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)       /* Sampling device (support sample download) */
 438 #define SNDRV_SEQ_PORT_TYPE_SAMPLE      (1<<12) /* Sampling device (sample can be downloaded at any time) */
 439 /*...*/
 440 #define SNDRV_SEQ_PORT_TYPE_HARDWARE    (1<<16) /* driver for a hardware device */
 441 #define SNDRV_SEQ_PORT_TYPE_SOFTWARE    (1<<17) /* implemented in software */
 442 #define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER (1<<18) /* generates sound */
 443 #define SNDRV_SEQ_PORT_TYPE_PORT        (1<<19) /* connects to other device(s) */
 444 #define SNDRV_SEQ_PORT_TYPE_APPLICATION (1<<20) /* application (sequencer/editor) */
 445
 446 /* misc. conditioning flags */
 447 #define SNDRV_SEQ_PORT_FLG_GIVEN_PORT   (1<<0)
 448 #define SNDRV_SEQ_PORT_FLG_TIMESTAMP    (1<<1)
 449 #define SNDRV_SEQ_PORT_FLG_TIME_REAL    (1<<2)
 450
 451 struct snd_seq_port_info {
 452         struct snd_seq_addr addr;       /* client/port numbers */
 453         char name[64];                  /* port name */
 454
 455         unsigned int capability;        /* port capability bits */
 456         unsigned int type;              /* port type bits */
 457         int midi_channels;              /* channels per MIDI port */
 458         int midi_voices;                /* voices per MIDI port */
 459         int synth_voices;               /* voices per SYNTH port */
 460
 461         int read_use;                   /* R/O: subscribers for output (from this port) */
 462         int write_use;                  /* R/O: subscribers for input (to this port) */
 463
 464         void *kernel;                   /* reserved for kernel use (must be NULL) */
 465         unsigned int flags;             /* misc. conditioning */
 466         unsigned char time_queue;       /* queue # for timestamping */
 467         char reserved[59];              /* for future use */
 468 };
 469
 470
 471 /* queue flags */
 472 #define SNDRV_SEQ_QUEUE_FLG_SYNC        (1<<0)  /* sync enabled */
 473
 474 /* queue information */
 475 struct snd_seq_queue_info {
 476         int queue;              /* queue id */
 477
 478         /*
 479          *  security settings, only owner of this queue can start/stop timer
 480          *  etc. if the queue is locked for other clients
 481          */
 482         int owner;              /* client id for owner of the queue */
 483         unsigned locked:1;      /* timing queue locked for other queues */
 484         char name[64];          /* name of this queue */
 485         unsigned int flags;     /* flags */
 486         char reserved[60];      /* for future use */
 487
 488 };
 489
 490 /* queue info/status */
 491 struct snd_seq_queue_status {
 492         int queue;                      /* queue id */
 493         int events;                     /* read-only - queue size */
 494         snd_seq_tick_time_t tick;       /* current tick */
 495         struct snd_seq_real_time time;  /* current time */
 496         int running;                    /* running state of queue */
 497         int flags;                      /* various flags */
 498         char reserved[64];              /* for the future */
 499 };
 500
 501
 502 /* queue tempo */
 503 struct snd_seq_queue_tempo {
 504         int queue;                      /* sequencer queue */
 505         unsigned int tempo;             /* current tempo, us/tick */
 506         int ppq;                        /* time resolution, ticks/quarter */
 507         unsigned int skew_value;        /* queue skew */
 508         unsigned int skew_base;         /* queue skew base */
 509         char reserved[24];              /* for the future */
 510 };
 511
 512
 513 /* sequencer timer sources */
 514 #define SNDRV_SEQ_TIMER_ALSA            0       /* ALSA timer */
 515 #define SNDRV_SEQ_TIMER_MIDI_CLOCK      1       /* Midi Clock (CLOCK event) */
 516 #define SNDRV_SEQ_TIMER_MIDI_TICK       2       /* Midi Timer Tick (TICK event) */
 517
 518 /* queue timer info */
 519 struct snd_seq_queue_timer {
 520         int queue;                      /* sequencer queue */
 521         int type;                       /* source timer type */
 522         union {
 523                 struct {
 524                         struct snd_timer_id id; /* ALSA's timer ID */
 525                         unsigned int resolution;        /* resolution in Hz */
 526                 } alsa;
 527         } u;
 528         char reserved[64];              /* for the future use */
 529 };
 530
 531
 532 struct snd_seq_queue_client {
 533         int queue;              /* sequencer queue */
 534         int client;             /* sequencer client */
 535         int used;               /* queue is used with this client
 536                                    (must be set for accepting events) */
 537         /* per client watermarks */
 538         char reserved[64];      /* for future use */
 539 };
 540
 541
 542 #define SNDRV_SEQ_PORT_SUBS_EXCLUSIVE   (1<<0)  /* exclusive connection */
 543 #define SNDRV_SEQ_PORT_SUBS_TIMESTAMP   (1<<1)
 544 #define SNDRV_SEQ_PORT_SUBS_TIME_REAL   (1<<2)
 545
 546 struct snd_seq_port_subscribe {
 547         struct snd_seq_addr sender;     /* sender address */
 548         struct snd_seq_addr dest;       /* destination address */
 549         unsigned int voices;            /* number of voices to be allocated (0 = don't care) */
 550         unsigned int flags;             /* modes */
 551         unsigned char queue;            /* input time-stamp queue (optional) */
 552         unsigned char pad[3];           /* reserved */
 553         char reserved[64];
 554 };
 555
 556 /* type of query subscription */
 557 #define SNDRV_SEQ_QUERY_SUBS_READ       0
 558 #define SNDRV_SEQ_QUERY_SUBS_WRITE      1
 559
 560 struct snd_seq_query_subs {
 561         struct snd_seq_addr root;       /* client/port id to be searched */
 562         int type;               /* READ or WRITE */
 563         int index;              /* 0..N-1 */
 564         int num_subs;           /* R/O: number of subscriptions on this port */
 565         struct snd_seq_addr addr;       /* R/O: result */
 566         unsigned char queue;    /* R/O: result */
 567         unsigned int flags;     /* R/O: result */
 568         char reserved[64];      /* for future use */
 569 };
 570
 571
 572 /*
 573  *  IOCTL commands
 574  */
 575
 576 #define SNDRV_SEQ_IOCTL_PVERSION        _IOR ('S', 0x00, int)
 577 #define SNDRV_SEQ_IOCTL_CLIENT_ID       _IOR ('S', 0x01, int)
 578 #define SNDRV_SEQ_IOCTL_SYSTEM_INFO     _IOWR('S', 0x02, struct snd_seq_system_info)
 579 #define SNDRV_SEQ_IOCTL_RUNNING_MODE    _IOWR('S', 0x03, struct snd_seq_running_info)
 580
 581 #define SNDRV_SEQ_IOCTL_GET_CLIENT_INFO _IOWR('S', 0x10, struct snd_seq_client_info)
 582 #define SNDRV_SEQ_IOCTL_SET_CLIENT_INFO _IOW ('S', 0x11, struct snd_seq_client_info)
 583
 584 #define SNDRV_SEQ_IOCTL_CREATE_PORT     _IOWR('S', 0x20, struct snd_seq_port_info)
 585 #define SNDRV_SEQ_IOCTL_DELETE_PORT     _IOW ('S', 0x21, struct snd_seq_port_info)
 586 #define SNDRV_SEQ_IOCTL_GET_PORT_INFO   _IOWR('S', 0x22, struct snd_seq_port_info)
 587 #define SNDRV_SEQ_IOCTL_SET_PORT_INFO   _IOW ('S', 0x23, struct snd_seq_port_info)
 588
 589 #define SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT  _IOW ('S', 0x30, struct snd_seq_port_subscribe)
 590 #define SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT _IOW ('S', 0x31, struct snd_seq_port_subscribe)
 591
 592 #define SNDRV_SEQ_IOCTL_CREATE_QUEUE    _IOWR('S', 0x32, struct snd_seq_queue_info)
 593 #define SNDRV_SEQ_IOCTL_DELETE_QUEUE    _IOW ('S', 0x33, struct snd_seq_queue_info)
 594 #define SNDRV_SEQ_IOCTL_GET_QUEUE_INFO  _IOWR('S', 0x34, struct snd_seq_queue_info)
 595 #define SNDRV_SEQ_IOCTL_SET_QUEUE_INFO  _IOWR('S', 0x35, struct snd_seq_queue_info)
 596 #define SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE _IOWR('S', 0x36, struct snd_seq_queue_info)
 597 #define SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS _IOWR('S', 0x40, struct snd_seq_queue_status)
 598 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO _IOWR('S', 0x41, struct snd_seq_queue_tempo)
 599 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO _IOW ('S', 0x42, struct snd_seq_queue_tempo)
 600 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER _IOWR('S', 0x45, struct snd_seq_queue_timer)
 601 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER _IOW ('S', 0x46, struct snd_seq_queue_timer)
 602 #define SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT        _IOWR('S', 0x49, struct snd_seq_queue_client)
 603 #define SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT        _IOW ('S', 0x4a, struct snd_seq_queue_client)
 604 #define SNDRV_SEQ_IOCTL_GET_CLIENT_POOL _IOWR('S', 0x4b, struct snd_seq_client_pool)
 605 #define SNDRV_SEQ_IOCTL_SET_CLIENT_POOL _IOW ('S', 0x4c, struct snd_seq_client_pool)
 606 #define SNDRV_SEQ_IOCTL_REMOVE_EVENTS   _IOW ('S', 0x4e, struct snd_seq_remove_events)
 607 #define SNDRV_SEQ_IOCTL_QUERY_SUBS      _IOWR('S', 0x4f, struct snd_seq_query_subs)
 608 #define SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION        _IOWR('S', 0x50, struct snd_seq_port_subscribe)
 609 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT       _IOWR('S', 0x51, struct snd_seq_client_info)
 610 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT _IOWR('S', 0x52, struct snd_seq_port_info)
 611
 612 #endif /* _UAPI__SOUND_ASEQUENCER_H */