asequencer.h 21 KB

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