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 (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_USE_EVENT (1U<<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 */ 613