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 #ifndef _UAPI__SOUND_ASEQUENCER_H
   8 #define _UAPI__SOUND_ASEQUENCER_H
   9
  10 #include <sound/asound.h>
  11
  12 /** version of the sequencer */
  13 #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 4)
  14
  15 /**
  16  * definition of sequencer event types
  17  */
  18
  19 /** system messages
  20  * event data type = #snd_seq_result
  21  */
  22 #define SNDRV_SEQ_EVENT_SYSTEM          0
  23 #define SNDRV_SEQ_EVENT_RESULT          1
  24
  25 /** note messages (channel specific)
  26  * event data type = #snd_seq_ev_note
  27  */
  28 #define SNDRV_SEQ_EVENT_NOTE            5
  29 #define SNDRV_SEQ_EVENT_NOTEON          6
  30 #define SNDRV_SEQ_EVENT_NOTEOFF         7
  31 #define SNDRV_SEQ_EVENT_KEYPRESS        8
  32
  33 /** control messages (channel specific)
  34  * event data type = #snd_seq_ev_ctrl
  35  */
  36 #define SNDRV_SEQ_EVENT_CONTROLLER      10
  37 #define SNDRV_SEQ_EVENT_PGMCHANGE       11
  38 #define SNDRV_SEQ_EVENT_CHANPRESS       12
  39 #define SNDRV_SEQ_EVENT_PITCHBEND       13      /**< from -8192 to 8191 */
  40 #define SNDRV_SEQ_EVENT_CONTROL14       14      /**< 14 bit controller value */
  41 #define SNDRV_SEQ_EVENT_NONREGPARAM     15      /**< 14 bit NRPN address + 14 bit unsigned value */
  42 #define SNDRV_SEQ_EVENT_REGPARAM        16      /**< 14 bit RPN address + 14 bit unsigned value */
  43
  44 /** synchronisation messages
  45  * event data type = #snd_seq_ev_ctrl
  46  */
  47 #define SNDRV_SEQ_EVENT_SONGPOS         20      /* Song Position Pointer with LSB and MSB values */
  48 #define SNDRV_SEQ_EVENT_SONGSEL         21      /* Song Select with song ID number */
  49 #define SNDRV_SEQ_EVENT_QFRAME          22      /* midi time code quarter frame */
  50 #define SNDRV_SEQ_EVENT_TIMESIGN        23      /* SMF Time Signature event */
  51 #define SNDRV_SEQ_EVENT_KEYSIGN         24      /* SMF Key Signature event */
  52
  53 /** timer messages
  54  * event data type = snd_seq_ev_queue_control
  55  */
  56 #define SNDRV_SEQ_EVENT_START           30      /* midi Real Time Start message */
  57 #define SNDRV_SEQ_EVENT_CONTINUE        31      /* midi Real Time Continue message */
  58 #define SNDRV_SEQ_EVENT_STOP            32      /* midi Real Time Stop message */
  59 #define SNDRV_SEQ_EVENT_SETPOS_TICK     33      /* set tick queue position */
  60 #define SNDRV_SEQ_EVENT_SETPOS_TIME     34      /* set realtime queue position */
  61 #define SNDRV_SEQ_EVENT_TEMPO           35      /* (SMF) Tempo event */
  62 #define SNDRV_SEQ_EVENT_CLOCK           36      /* midi Real Time Clock message */
  63 #define SNDRV_SEQ_EVENT_TICK            37      /* midi Real Time Tick message */
  64 #define SNDRV_SEQ_EVENT_QUEUE_SKEW      38      /* skew queue tempo */
  65
  66 /** others
  67  * event data type = none
  68  */
  69 #define SNDRV_SEQ_EVENT_TUNE_REQUEST    40      /* tune request */
  70 #define SNDRV_SEQ_EVENT_RESET           41      /* reset to power-on state */
  71 #define SNDRV_SEQ_EVENT_SENSING         42      /* "active sensing" event */
  72
  73 /** echo back, kernel private messages
  74  * event data type = any type
  75  */
  76 #define SNDRV_SEQ_EVENT_ECHO            50      /* echo event */
  77 #define SNDRV_SEQ_EVENT_OSS             51      /* OSS raw event */
  78
  79 /** system status messages (broadcast for subscribers)
  80  * event data type = snd_seq_addr
  81  */
  82 #define SNDRV_SEQ_EVENT_CLIENT_START    60      /* new client has connected */
  83 #define SNDRV_SEQ_EVENT_CLIENT_EXIT     61      /* client has left the system */
  84 #define SNDRV_SEQ_EVENT_CLIENT_CHANGE   62      /* client status/info has changed */
  85 #define SNDRV_SEQ_EVENT_PORT_START      63      /* new port was created */
  86 #define SNDRV_SEQ_EVENT_PORT_EXIT       64      /* port was deleted from system */
  87 #define SNDRV_SEQ_EVENT_PORT_CHANGE     65      /* port status/info has changed */
  88
  89 /** port connection changes
  90  * event data type = snd_seq_connect
  91  */
  92 #define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED 66      /* ports connected */
  93 #define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67    /* ports disconnected */
  94
  95 /* 70-89:  synthesizer events - obsoleted */
  96
  97 /** user-defined events with fixed length
  98  * event data type = any
  99  */
 100 #define SNDRV_SEQ_EVENT_USR0            90
 101 #define SNDRV_SEQ_EVENT_USR1            91
 102 #define SNDRV_SEQ_EVENT_USR2            92
 103 #define SNDRV_SEQ_EVENT_USR3            93
 104 #define SNDRV_SEQ_EVENT_USR4            94
 105 #define SNDRV_SEQ_EVENT_USR5            95
 106 #define SNDRV_SEQ_EVENT_USR6            96
 107 #define SNDRV_SEQ_EVENT_USR7            97
 108 #define SNDRV_SEQ_EVENT_USR8            98
 109 #define SNDRV_SEQ_EVENT_USR9            99
 110
 111 /* 100-118: instrument layer - obsoleted */
 112 /* 119-129: reserved */
 113
 114 /* 130-139: variable length events
 115  * event data type = snd_seq_ev_ext
 116  * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
 117  */
 118 #define SNDRV_SEQ_EVENT_SYSEX           130     /* system exclusive data (variable length) */
 119 #define SNDRV_SEQ_EVENT_BOUNCE          131     /* error event */
 120 /* 132-134: reserved */
 121 #define SNDRV_SEQ_EVENT_USR_VAR0        135
 122 #define SNDRV_SEQ_EVENT_USR_VAR1        136
 123 #define SNDRV_SEQ_EVENT_USR_VAR2        137
 124 #define SNDRV_SEQ_EVENT_USR_VAR3        138
 125 #define SNDRV_SEQ_EVENT_USR_VAR4        139
 126
 127 /* 150-151: kernel events with quote - DO NOT use in user clients */
 128 #define SNDRV_SEQ_EVENT_KERNEL_ERROR    150
 129 #define SNDRV_SEQ_EVENT_KERNEL_QUOTE    151     /* obsolete */
 130
 131 /* 152-191: reserved */
 132
 133 /* 192-254: hardware specific events */
 134
 135 /* 255: special event */
 136 #define SNDRV_SEQ_EVENT_NONE            255
 137
 138
 139 typedef unsigned char snd_seq_event_type_t;
 140
 141 /** event address */
 142 struct snd_seq_addr {
 143         unsigned char client;   /**< Client number:         0..255, 255 = broadcast to all clients */
 144         unsigned char port;     /**< Port within client:    0..255, 255 = broadcast to all ports */
 145 };
 146
 147 /** port connection */
 148 struct snd_seq_connect {
 149         struct snd_seq_addr sender;
 150         struct snd_seq_addr dest;
 151 };
 152
 153
 154 #define SNDRV_SEQ_ADDRESS_UNKNOWN       253     /* unknown source */
 155 #define SNDRV_SEQ_ADDRESS_SUBSCRIBERS   254     /* send event to all subscribed ports */
 156 #define SNDRV_SEQ_ADDRESS_BROADCAST     255     /* send event to all queues/clients/ports/channels */
 157 #define SNDRV_SEQ_QUEUE_DIRECT          253     /* direct dispatch */
 158
 159         /* event mode flag - NOTE: only 8 bits available! */
 160 #define SNDRV_SEQ_TIME_STAMP_TICK       (0<<0) /* timestamp in clock ticks */
 161 #define SNDRV_SEQ_TIME_STAMP_REAL       (1<<0) /* timestamp in real time */
 162 #define SNDRV_SEQ_TIME_STAMP_MASK       (1<<0)
 163
 164 #define SNDRV_SEQ_TIME_MODE_ABS         (0<<1)  /* absolute timestamp */
 165 #define SNDRV_SEQ_TIME_MODE_REL         (1<<1)  /* relative to current time */
 166 #define SNDRV_SEQ_TIME_MODE_MASK        (1<<1)
 167
 168 #define SNDRV_SEQ_EVENT_LENGTH_FIXED    (0<<2)  /* fixed event size */
 169 #define SNDRV_SEQ_EVENT_LENGTH_VARIABLE (1<<2)  /* variable event size */
 170 #define SNDRV_SEQ_EVENT_LENGTH_VARUSR   (2<<2)  /* variable event size - user memory space */
 171 #define SNDRV_SEQ_EVENT_LENGTH_MASK     (3<<2)
 172
 173 #define SNDRV_SEQ_PRIORITY_NORMAL       (0<<4)  /* normal priority */
 174 #define SNDRV_SEQ_PRIORITY_HIGH         (1<<4)  /* event should be processed before others */
 175 #define SNDRV_SEQ_PRIORITY_MASK         (1<<4)
 176
 177 #define SNDRV_SEQ_EVENT_UMP             (1<<5)  /* event holds a UMP packet */
 178
 179         /* note event */
 180 struct snd_seq_ev_note {
 181         unsigned char channel;
 182         unsigned char note;
 183         unsigned char velocity;
 184         unsigned char off_velocity;     /* only for SNDRV_SEQ_EVENT_NOTE */
 185         unsigned int duration;          /* only for SNDRV_SEQ_EVENT_NOTE */
 186 };
 187
 188         /* controller event */
 189 struct snd_seq_ev_ctrl {
 190         unsigned char channel;
 191         unsigned char unused1, unused2, unused3;        /* pad */
 192         unsigned int param;
 193         signed int value;
 194 };
 195
 196         /* generic set of bytes (12x8 bit) */
 197 struct snd_seq_ev_raw8 {
 198         unsigned char d[12];    /* 8 bit value */
 199 };
 200
 201         /* generic set of integers (3x32 bit) */
 202 struct snd_seq_ev_raw32 {
 203         unsigned int d[3];      /* 32 bit value */
 204 };
 205
 206         /* external stored data */
 207 struct snd_seq_ev_ext {
 208         unsigned int len;       /* length of data */
 209         void *ptr;              /* pointer to data (note: maybe 64-bit) */
 210 } __packed;
 211
 212 struct snd_seq_result {
 213         int event;              /* processed event type */
 214         int result;
 215 };
 216
 217
 218 struct snd_seq_real_time {
 219         unsigned int tv_sec;    /* seconds */
 220         unsigned int tv_nsec;   /* nanoseconds */
 221 };
 222
 223 typedef unsigned int snd_seq_tick_time_t;       /* midi ticks */
 224
 225 union snd_seq_timestamp {
 226         snd_seq_tick_time_t tick;
 227         struct snd_seq_real_time time;
 228 };
 229
 230 struct snd_seq_queue_skew {
 231         unsigned int value;
 232         unsigned int base;
 233 };
 234
 235         /* queue timer control */
 236 struct snd_seq_ev_queue_control {
 237         unsigned char queue;                    /* affected queue */
 238         unsigned char pad[3];                   /* reserved */
 239         union {
 240                 signed int value;               /* affected value (e.g. tempo) */
 241                 union snd_seq_timestamp time;   /* time */
 242                 unsigned int position;          /* sync position */
 243                 struct snd_seq_queue_skew skew;
 244                 unsigned int d32[2];
 245                 unsigned char d8[8];
 246         } param;
 247 };
 248
 249         /* quoted event - inside the kernel only */
 250 struct snd_seq_ev_quote {
 251         struct snd_seq_addr origin;             /* original sender */
 252         unsigned short value;           /* optional data */
 253         struct snd_seq_event *event;            /* quoted event */
 254 } __packed;
 255
 256 union snd_seq_event_data { /* event data... */
 257         struct snd_seq_ev_note note;
 258         struct snd_seq_ev_ctrl control;
 259         struct snd_seq_ev_raw8 raw8;
 260         struct snd_seq_ev_raw32 raw32;
 261         struct snd_seq_ev_ext ext;
 262         struct snd_seq_ev_queue_control queue;
 263         union snd_seq_timestamp time;
 264         struct snd_seq_addr addr;
 265         struct snd_seq_connect connect;
 266         struct snd_seq_result result;
 267         struct snd_seq_ev_quote quote;
 268 };
 269
 270         /* sequencer event */
 271 struct snd_seq_event {
 272         snd_seq_event_type_t type;      /* event type */
 273         unsigned char flags;            /* event flags */
 274         char tag;
 275
 276         unsigned char queue;            /* schedule queue */
 277         union snd_seq_timestamp time;   /* schedule time */
 278
 279         struct snd_seq_addr source;     /* source address */
 280         struct snd_seq_addr dest;       /* destination address */
 281
 282         union snd_seq_event_data data;
 283 };
 284
 285         /* (compatible) event for UMP-capable clients */
 286 struct snd_seq_ump_event {
 287         snd_seq_event_type_t type;      /* event type */
 288         unsigned char flags;            /* event flags */
 289         char tag;
 290         unsigned char queue;            /* schedule queue */
 291         union snd_seq_timestamp time;   /* schedule time */
 292         struct snd_seq_addr source;     /* source address */
 293         struct snd_seq_addr dest;       /* destination address */
 294
 295         union {
 296                 union snd_seq_event_data data;
 297                 unsigned int ump[4];
 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      (1U<<0) /* accept broadcast messages */
 348 #define SNDRV_SEQ_FILTER_MULTICAST      (1U<<1) /* accept multicast messages */
 349 #define SNDRV_SEQ_FILTER_BOUNCE         (1U<<2) /* accept bounce event in error */
 350 #define SNDRV_SEQ_FILTER_NO_CONVERT     (1U<<30) /* don't convert UMP events */
 351 #define SNDRV_SEQ_FILTER_USE_EVENT      (1U<<31)        /* use event filter */
 352
 353 struct snd_seq_client_info {
 354         int client;                     /* client number to inquire */
 355         snd_seq_client_type_t type;     /* client type */
 356         char name[64];                  /* client name */
 357         unsigned int filter;            /* filter flags */
 358         unsigned char multicast_filter[8]; /* multicast filter bitmap */
 359         unsigned char event_filter[32]; /* event filter bitmap */
 360         int num_ports;                  /* RO: number of ports */
 361         int event_lost;                 /* number of lost events */
 362         int card;                       /* RO: card number[kernel] */
 363         int pid;                        /* RO: pid[user] */
 364         unsigned int midi_version;      /* MIDI version */
 365         unsigned int group_filter;      /* UMP group filter bitmap
 366                                          * (bit 0 = groupless messages,
 367                                          *  bit 1-16 = messages for groups 1-16)
 368                                          */
 369         char reserved[48];              /* for future use */
 370 };
 371
 372 /* MIDI version numbers in client info */
 373 #define SNDRV_SEQ_CLIENT_LEGACY_MIDI            0       /* Legacy client */
 374 #define SNDRV_SEQ_CLIENT_UMP_MIDI_1_0           1       /* UMP MIDI 1.0 */
 375 #define SNDRV_SEQ_CLIENT_UMP_MIDI_2_0           2       /* UMP MIDI 2.0 */
 376
 377 /* client pool size */
 378 struct snd_seq_client_pool {
 379         int client;                     /* client number to inquire */
 380         int output_pool;                /* outgoing (write) pool size */
 381         int input_pool;                 /* incoming (read) pool size */
 382         int output_room;                /* minimum free pool size for select/blocking mode */
 383         int output_free;                /* unused size */
 384         int input_free;                 /* unused size */
 385         char reserved[64];
 386 };
 387
 388
 389 /* Remove events by specified criteria */
 390
 391 #define SNDRV_SEQ_REMOVE_INPUT          (1<<0)  /* Flush input queues */
 392 #define SNDRV_SEQ_REMOVE_OUTPUT         (1<<1)  /* Flush output queues */
 393 #define SNDRV_SEQ_REMOVE_DEST           (1<<2)  /* Restrict by destination q:client:port */
 394 #define SNDRV_SEQ_REMOVE_DEST_CHANNEL   (1<<3)  /* Restrict by channel */
 395 #define SNDRV_SEQ_REMOVE_TIME_BEFORE    (1<<4)  /* Restrict to before time */
 396 #define SNDRV_SEQ_REMOVE_TIME_AFTER     (1<<5)  /* Restrict to time or after */
 397 #define SNDRV_SEQ_REMOVE_TIME_TICK      (1<<6)  /* Time is in ticks */
 398 #define SNDRV_SEQ_REMOVE_EVENT_TYPE     (1<<7)  /* Restrict to event type */
 399 #define SNDRV_SEQ_REMOVE_IGNORE_OFF     (1<<8)  /* Do not flush off events */
 400 #define SNDRV_SEQ_REMOVE_TAG_MATCH      (1<<9)  /* Restrict to events with given tag */
 401
 402 struct snd_seq_remove_events {
 403         unsigned int  remove_mode;      /* Flags that determine what gets removed */
 404
 405         union snd_seq_timestamp time;
 406
 407         unsigned char queue;    /* Queue for REMOVE_DEST */
 408         struct snd_seq_addr dest;       /* Address for REMOVE_DEST */
 409         unsigned char channel;  /* Channel for REMOVE_DEST */
 410
 411         int  type;      /* For REMOVE_EVENT_TYPE */
 412         char  tag;      /* Tag for REMOVE_TAG */
 413
 414         int  reserved[10];      /* To allow for future binary compatibility */
 415
 416 };
 417
 418
 419         /* known port numbers */
 420 #define SNDRV_SEQ_PORT_SYSTEM_TIMER     0
 421 #define SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE  1
 422
 423         /* port capabilities (32 bits) */
 424 #define SNDRV_SEQ_PORT_CAP_READ         (1<<0)  /* readable from this port */
 425 #define SNDRV_SEQ_PORT_CAP_WRITE        (1<<1)  /* writable to this port */
 426
 427 #define SNDRV_SEQ_PORT_CAP_SYNC_READ    (1<<2)
 428 #define SNDRV_SEQ_PORT_CAP_SYNC_WRITE   (1<<3)
 429
 430 #define SNDRV_SEQ_PORT_CAP_DUPLEX       (1<<4)
 431
 432 #define SNDRV_SEQ_PORT_CAP_SUBS_READ    (1<<5)  /* allow read subscription */
 433 #define SNDRV_SEQ_PORT_CAP_SUBS_WRITE   (1<<6)  /* allow write subscription */
 434 #define SNDRV_SEQ_PORT_CAP_NO_EXPORT    (1<<7)  /* routing not allowed */
 435 #define SNDRV_SEQ_PORT_CAP_INACTIVE     (1<<8)  /* inactive port */
 436 #define SNDRV_SEQ_PORT_CAP_UMP_ENDPOINT (1<<9)  /* MIDI 2.0 UMP Endpoint port */
 437
 438         /* port type */
 439 #define SNDRV_SEQ_PORT_TYPE_SPECIFIC    (1<<0)  /* hardware specific */
 440 #define SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1) /* generic MIDI device */
 441 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM     (1<<2)  /* General MIDI compatible device */
 442 #define SNDRV_SEQ_PORT_TYPE_MIDI_GS     (1<<3)  /* GS compatible device */
 443 #define SNDRV_SEQ_PORT_TYPE_MIDI_XG     (1<<4)  /* XG compatible device */
 444 #define SNDRV_SEQ_PORT_TYPE_MIDI_MT32   (1<<5)  /* MT-32 compatible device */
 445 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM2    (1<<6)  /* General MIDI 2 compatible device */
 446 #define SNDRV_SEQ_PORT_TYPE_MIDI_UMP    (1<<7)  /* UMP */
 447
 448 /* other standards...*/
 449 #define SNDRV_SEQ_PORT_TYPE_SYNTH       (1<<10) /* Synth device (no MIDI compatible - direct wavetable) */
 450 #define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)       /* Sampling device (support sample download) */
 451 #define SNDRV_SEQ_PORT_TYPE_SAMPLE      (1<<12) /* Sampling device (sample can be downloaded at any time) */
 452 /*...*/
 453 #define SNDRV_SEQ_PORT_TYPE_HARDWARE    (1<<16) /* driver for a hardware device */
 454 #define SNDRV_SEQ_PORT_TYPE_SOFTWARE    (1<<17) /* implemented in software */
 455 #define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER (1<<18) /* generates sound */
 456 #define SNDRV_SEQ_PORT_TYPE_PORT        (1<<19) /* connects to other device(s) */
 457 #define SNDRV_SEQ_PORT_TYPE_APPLICATION (1<<20) /* application (sequencer/editor) */
 458
 459 /* misc. conditioning flags */
 460 #define SNDRV_SEQ_PORT_FLG_GIVEN_PORT   (1<<0)
 461 #define SNDRV_SEQ_PORT_FLG_TIMESTAMP    (1<<1)
 462 #define SNDRV_SEQ_PORT_FLG_TIME_REAL    (1<<2)
 463
 464 #define SNDRV_SEQ_PORT_FLG_IS_MIDI1     (1<<3)  /* Keep MIDI 1.0 protocol */
 465
 466 /* port direction */
 467 #define SNDRV_SEQ_PORT_DIR_UNKNOWN      0
 468 #define SNDRV_SEQ_PORT_DIR_INPUT        1
 469 #define SNDRV_SEQ_PORT_DIR_OUTPUT       2
 470 #define SNDRV_SEQ_PORT_DIR_BIDIRECTION  3
 471
 472 struct snd_seq_port_info {
 473         struct snd_seq_addr addr;       /* client/port numbers */
 474         char name[64];                  /* port name */
 475
 476         unsigned int capability;        /* port capability bits */
 477         unsigned int type;              /* port type bits */
 478         int midi_channels;              /* channels per MIDI port */
 479         int midi_voices;                /* voices per MIDI port */
 480         int synth_voices;               /* voices per SYNTH port */
 481
 482         int read_use;                   /* R/O: subscribers for output (from this port) */
 483         int write_use;                  /* R/O: subscribers for input (to this port) */
 484
 485         void *kernel;                   /* reserved for kernel use (must be NULL) */
 486         unsigned int flags;             /* misc. conditioning */
 487         unsigned char time_queue;       /* queue # for timestamping */
 488         unsigned char direction;        /* port usage direction (r/w/bidir) */
 489         unsigned char ump_group;        /* 0 = UMP EP (no conversion), 1-16 = UMP group number */
 490         char reserved[57];              /* for future use */
 491 };
 492
 493
 494 /* queue flags */
 495 #define SNDRV_SEQ_QUEUE_FLG_SYNC        (1<<0)  /* sync enabled */
 496
 497 /* queue information */
 498 struct snd_seq_queue_info {
 499         int queue;              /* queue id */
 500
 501         /*
 502          *  security settings, only owner of this queue can start/stop timer
 503          *  etc. if the queue is locked for other clients
 504          */
 505         int owner;              /* client id for owner of the queue */
 506         unsigned locked:1;      /* timing queue locked for other queues */
 507         char name[64];          /* name of this queue */
 508         unsigned int flags;     /* flags */
 509         char reserved[60];      /* for future use */
 510
 511 };
 512
 513 /* queue info/status */
 514 struct snd_seq_queue_status {
 515         int queue;                      /* queue id */
 516         int events;                     /* read-only - queue size */
 517         snd_seq_tick_time_t tick;       /* current tick */
 518         struct snd_seq_real_time time;  /* current time */
 519         int running;                    /* running state of queue */
 520         int flags;                      /* various flags */
 521         char reserved[64];              /* for the future */
 522 };
 523
 524
 525 /* queue tempo */
 526 struct snd_seq_queue_tempo {
 527         int queue;                      /* sequencer queue */
 528         unsigned int tempo;             /* current tempo, us/tick (or different time-base below) */
 529         int ppq;                        /* time resolution, ticks/quarter */
 530         unsigned int skew_value;        /* queue skew */
 531         unsigned int skew_base;         /* queue skew base */
 532         unsigned short tempo_base;      /* tempo base in nsec unit; either 10 or 1000 */
 533         char reserved[22];              /* for the future */
 534 };
 535
 536
 537 /* sequencer timer sources */
 538 #define SNDRV_SEQ_TIMER_ALSA            0       /* ALSA timer */
 539 #define SNDRV_SEQ_TIMER_MIDI_CLOCK      1       /* Midi Clock (CLOCK event) */
 540 #define SNDRV_SEQ_TIMER_MIDI_TICK       2       /* Midi Timer Tick (TICK event) */
 541
 542 /* queue timer info */
 543 struct snd_seq_queue_timer {
 544         int queue;                      /* sequencer queue */
 545         int type;                       /* source timer type */
 546         union {
 547                 struct {
 548                         struct snd_timer_id id; /* ALSA's timer ID */
 549                         unsigned int resolution;        /* resolution in Hz */
 550                 } alsa;
 551         } u;
 552         char reserved[64];              /* for the future use */
 553 };
 554
 555
 556 struct snd_seq_queue_client {
 557         int queue;              /* sequencer queue */
 558         int client;             /* sequencer client */
 559         int used;               /* queue is used with this client
 560                                    (must be set for accepting events) */
 561         /* per client watermarks */
 562         char reserved[64];      /* for future use */
 563 };
 564
 565
 566 #define SNDRV_SEQ_PORT_SUBS_EXCLUSIVE   (1<<0)  /* exclusive connection */
 567 #define SNDRV_SEQ_PORT_SUBS_TIMESTAMP   (1<<1)
 568 #define SNDRV_SEQ_PORT_SUBS_TIME_REAL   (1<<2)
 569
 570 struct snd_seq_port_subscribe {
 571         struct snd_seq_addr sender;     /* sender address */
 572         struct snd_seq_addr dest;       /* destination address */
 573         unsigned int voices;            /* number of voices to be allocated (0 = don't care) */
 574         unsigned int flags;             /* modes */
 575         unsigned char queue;            /* input time-stamp queue (optional) */
 576         unsigned char pad[3];           /* reserved */
 577         char reserved[64];
 578 };
 579
 580 /* type of query subscription */
 581 #define SNDRV_SEQ_QUERY_SUBS_READ       0
 582 #define SNDRV_SEQ_QUERY_SUBS_WRITE      1
 583
 584 struct snd_seq_query_subs {
 585         struct snd_seq_addr root;       /* client/port id to be searched */
 586         int type;               /* READ or WRITE */
 587         int index;              /* 0..N-1 */
 588         int num_subs;           /* R/O: number of subscriptions on this port */
 589         struct snd_seq_addr addr;       /* R/O: result */
 590         unsigned char queue;    /* R/O: result */
 591         unsigned int flags;     /* R/O: result */
 592         char reserved[64];      /* for future use */
 593 };
 594
 595 /*
 596  * UMP-specific information
 597  */
 598 /* type of UMP info query */
 599 #define SNDRV_SEQ_CLIENT_UMP_INFO_ENDPOINT      0
 600 #define SNDRV_SEQ_CLIENT_UMP_INFO_BLOCK         1
 601
 602 struct snd_seq_client_ump_info {
 603         int client;                     /* client number to inquire/set */
 604         int type;                       /* type to inquire/set */
 605         unsigned char info[512];        /* info (either UMP ep or block info) */
 606 } __packed;
 607
 608 /*
 609  *  IOCTL commands
 610  */
 611
 612 #define SNDRV_SEQ_IOCTL_PVERSION        _IOR ('S', 0x00, int)
 613 #define SNDRV_SEQ_IOCTL_CLIENT_ID       _IOR ('S', 0x01, int)
 614 #define SNDRV_SEQ_IOCTL_SYSTEM_INFO     _IOWR('S', 0x02, struct snd_seq_system_info)
 615 #define SNDRV_SEQ_IOCTL_RUNNING_MODE    _IOWR('S', 0x03, struct snd_seq_running_info)
 616 #define SNDRV_SEQ_IOCTL_USER_PVERSION   _IOW('S', 0x04, int)
 617
 618 #define SNDRV_SEQ_IOCTL_GET_CLIENT_INFO _IOWR('S', 0x10, struct snd_seq_client_info)
 619 #define SNDRV_SEQ_IOCTL_SET_CLIENT_INFO _IOW ('S', 0x11, struct snd_seq_client_info)
 620 #define SNDRV_SEQ_IOCTL_GET_CLIENT_UMP_INFO     _IOWR('S', 0x12, struct snd_seq_client_ump_info)
 621 #define SNDRV_SEQ_IOCTL_SET_CLIENT_UMP_INFO     _IOWR('S', 0x13, struct snd_seq_client_ump_info)
 622
 623 #define SNDRV_SEQ_IOCTL_CREATE_PORT     _IOWR('S', 0x20, struct snd_seq_port_info)
 624 #define SNDRV_SEQ_IOCTL_DELETE_PORT     _IOW ('S', 0x21, struct snd_seq_port_info)
 625 #define SNDRV_SEQ_IOCTL_GET_PORT_INFO   _IOWR('S', 0x22, struct snd_seq_port_info)
 626 #define SNDRV_SEQ_IOCTL_SET_PORT_INFO   _IOW ('S', 0x23, struct snd_seq_port_info)
 627
 628 #define SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT  _IOW ('S', 0x30, struct snd_seq_port_subscribe)
 629 #define SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT _IOW ('S', 0x31, struct snd_seq_port_subscribe)
 630
 631 #define SNDRV_SEQ_IOCTL_CREATE_QUEUE    _IOWR('S', 0x32, struct snd_seq_queue_info)
 632 #define SNDRV_SEQ_IOCTL_DELETE_QUEUE    _IOW ('S', 0x33, struct snd_seq_queue_info)
 633 #define SNDRV_SEQ_IOCTL_GET_QUEUE_INFO  _IOWR('S', 0x34, struct snd_seq_queue_info)
 634 #define SNDRV_SEQ_IOCTL_SET_QUEUE_INFO  _IOWR('S', 0x35, struct snd_seq_queue_info)
 635 #define SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE _IOWR('S', 0x36, struct snd_seq_queue_info)
 636 #define SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS _IOWR('S', 0x40, struct snd_seq_queue_status)
 637 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO _IOWR('S', 0x41, struct snd_seq_queue_tempo)
 638 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO _IOW ('S', 0x42, struct snd_seq_queue_tempo)
 639 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER _IOWR('S', 0x45, struct snd_seq_queue_timer)
 640 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER _IOW ('S', 0x46, struct snd_seq_queue_timer)
 641 #define SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT        _IOWR('S', 0x49, struct snd_seq_queue_client)
 642 #define SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT        _IOW ('S', 0x4a, struct snd_seq_queue_client)
 643 #define SNDRV_SEQ_IOCTL_GET_CLIENT_POOL _IOWR('S', 0x4b, struct snd_seq_client_pool)
 644 #define SNDRV_SEQ_IOCTL_SET_CLIENT_POOL _IOW ('S', 0x4c, struct snd_seq_client_pool)
 645 #define SNDRV_SEQ_IOCTL_REMOVE_EVENTS   _IOW ('S', 0x4e, struct snd_seq_remove_events)
 646 #define SNDRV_SEQ_IOCTL_QUERY_SUBS      _IOWR('S', 0x4f, struct snd_seq_query_subs)
 647 #define SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION        _IOWR('S', 0x50, struct snd_seq_port_subscribe)
 648 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT       _IOWR('S', 0x51, struct snd_seq_client_info)
 649 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT _IOWR('S', 0x52, struct snd_seq_port_info)
 650
 651 #endif /* _UAPI__SOUND_ASEQUENCER_H */