xref: /openbmc/linux/include/uapi/sound/asequencer.h (revision 93d90ad7)
1 /*
2  *  Main header file for the ALSA sequencer
3  *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
4  *            (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
5  *
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  *
21  */
22 #ifndef _UAPI__SOUND_ASEQUENCER_H
23 #define _UAPI__SOUND_ASEQUENCER_H
24 
25 
26 /** version of the sequencer */
27 #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1)
28 
29 /**
30  * definition of sequencer event types
31  */
32 
33 /** system messages
34  * event data type = #snd_seq_result
35  */
36 #define SNDRV_SEQ_EVENT_SYSTEM		0
37 #define SNDRV_SEQ_EVENT_RESULT		1
38 
39 /** note messages (channel specific)
40  * event data type = #snd_seq_ev_note
41  */
42 #define SNDRV_SEQ_EVENT_NOTE		5
43 #define SNDRV_SEQ_EVENT_NOTEON		6
44 #define SNDRV_SEQ_EVENT_NOTEOFF		7
45 #define SNDRV_SEQ_EVENT_KEYPRESS	8
46 
47 /** control messages (channel specific)
48  * event data type = #snd_seq_ev_ctrl
49  */
50 #define SNDRV_SEQ_EVENT_CONTROLLER	10
51 #define SNDRV_SEQ_EVENT_PGMCHANGE	11
52 #define SNDRV_SEQ_EVENT_CHANPRESS	12
53 #define SNDRV_SEQ_EVENT_PITCHBEND	13	/**< from -8192 to 8191 */
54 #define SNDRV_SEQ_EVENT_CONTROL14	14	/**< 14 bit controller value */
55 #define SNDRV_SEQ_EVENT_NONREGPARAM	15	/**< 14 bit NRPN address + 14 bit unsigned value */
56 #define SNDRV_SEQ_EVENT_REGPARAM	16	/**< 14 bit RPN address + 14 bit unsigned value */
57 
58 /** synchronisation messages
59  * event data type = #snd_seq_ev_ctrl
60  */
61 #define SNDRV_SEQ_EVENT_SONGPOS		20	/* Song Position Pointer with LSB and MSB values */
62 #define SNDRV_SEQ_EVENT_SONGSEL		21	/* Song Select with song ID number */
63 #define SNDRV_SEQ_EVENT_QFRAME		22	/* midi time code quarter frame */
64 #define SNDRV_SEQ_EVENT_TIMESIGN	23	/* SMF Time Signature event */
65 #define SNDRV_SEQ_EVENT_KEYSIGN		24	/* SMF Key Signature event */
66 
67 /** timer messages
68  * event data type = snd_seq_ev_queue_control
69  */
70 #define SNDRV_SEQ_EVENT_START		30	/* midi Real Time Start message */
71 #define SNDRV_SEQ_EVENT_CONTINUE	31	/* midi Real Time Continue message */
72 #define SNDRV_SEQ_EVENT_STOP		32	/* midi Real Time Stop message */
73 #define	SNDRV_SEQ_EVENT_SETPOS_TICK	33	/* set tick queue position */
74 #define SNDRV_SEQ_EVENT_SETPOS_TIME	34	/* set realtime queue position */
75 #define SNDRV_SEQ_EVENT_TEMPO		35	/* (SMF) Tempo event */
76 #define SNDRV_SEQ_EVENT_CLOCK		36	/* midi Real Time Clock message */
77 #define SNDRV_SEQ_EVENT_TICK		37	/* midi Real Time Tick message */
78 #define SNDRV_SEQ_EVENT_QUEUE_SKEW	38	/* skew queue tempo */
79 
80 /** others
81  * event data type = none
82  */
83 #define SNDRV_SEQ_EVENT_TUNE_REQUEST	40	/* tune request */
84 #define SNDRV_SEQ_EVENT_RESET		41	/* reset to power-on state */
85 #define SNDRV_SEQ_EVENT_SENSING		42	/* "active sensing" event */
86 
87 /** echo back, kernel private messages
88  * event data type = any type
89  */
90 #define SNDRV_SEQ_EVENT_ECHO		50	/* echo event */
91 #define SNDRV_SEQ_EVENT_OSS		51	/* OSS raw event */
92 
93 /** system status messages (broadcast for subscribers)
94  * event data type = snd_seq_addr
95  */
96 #define SNDRV_SEQ_EVENT_CLIENT_START	60	/* new client has connected */
97 #define SNDRV_SEQ_EVENT_CLIENT_EXIT	61	/* client has left the system */
98 #define SNDRV_SEQ_EVENT_CLIENT_CHANGE	62	/* client status/info has changed */
99 #define SNDRV_SEQ_EVENT_PORT_START	63	/* new port was created */
100 #define SNDRV_SEQ_EVENT_PORT_EXIT	64	/* port was deleted from system */
101 #define SNDRV_SEQ_EVENT_PORT_CHANGE	65	/* port status/info has changed */
102 
103 /** port connection changes
104  * event data type = snd_seq_connect
105  */
106 #define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED	66	/* ports connected */
107 #define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67	/* ports disconnected */
108 
109 /* 70-89:  synthesizer events - obsoleted */
110 
111 /** user-defined events with fixed length
112  * event data type = any
113  */
114 #define SNDRV_SEQ_EVENT_USR0		90
115 #define SNDRV_SEQ_EVENT_USR1		91
116 #define SNDRV_SEQ_EVENT_USR2		92
117 #define SNDRV_SEQ_EVENT_USR3		93
118 #define SNDRV_SEQ_EVENT_USR4		94
119 #define SNDRV_SEQ_EVENT_USR5		95
120 #define SNDRV_SEQ_EVENT_USR6		96
121 #define SNDRV_SEQ_EVENT_USR7		97
122 #define SNDRV_SEQ_EVENT_USR8		98
123 #define SNDRV_SEQ_EVENT_USR9		99
124 
125 /* 100-118: instrument layer - obsoleted */
126 /* 119-129: reserved */
127 
128 /* 130-139: variable length events
129  * event data type = snd_seq_ev_ext
130  * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
131  */
132 #define SNDRV_SEQ_EVENT_SYSEX		130	/* system exclusive data (variable length) */
133 #define SNDRV_SEQ_EVENT_BOUNCE		131	/* error event */
134 /* 132-134: reserved */
135 #define SNDRV_SEQ_EVENT_USR_VAR0	135
136 #define SNDRV_SEQ_EVENT_USR_VAR1	136
137 #define SNDRV_SEQ_EVENT_USR_VAR2	137
138 #define SNDRV_SEQ_EVENT_USR_VAR3	138
139 #define SNDRV_SEQ_EVENT_USR_VAR4	139
140 
141 /* 150-151: kernel events with quote - DO NOT use in user clients */
142 #define SNDRV_SEQ_EVENT_KERNEL_ERROR	150
143 #define SNDRV_SEQ_EVENT_KERNEL_QUOTE	151	/* obsolete */
144 
145 /* 152-191: reserved */
146 
147 /* 192-254: hardware specific events */
148 
149 /* 255: special event */
150 #define SNDRV_SEQ_EVENT_NONE		255
151 
152 
153 typedef unsigned char snd_seq_event_type_t;
154 
155 /** event address */
156 struct snd_seq_addr {
157 	unsigned char client;	/**< Client number:         0..255, 255 = broadcast to all clients */
158 	unsigned char port;	/**< Port within client:    0..255, 255 = broadcast to all ports */
159 };
160 
161 /** port connection */
162 struct snd_seq_connect {
163 	struct snd_seq_addr sender;
164 	struct snd_seq_addr dest;
165 };
166 
167 
168 #define SNDRV_SEQ_ADDRESS_UNKNOWN	253	/* unknown source */
169 #define SNDRV_SEQ_ADDRESS_SUBSCRIBERS	254	/* send event to all subscribed ports */
170 #define SNDRV_SEQ_ADDRESS_BROADCAST	255	/* send event to all queues/clients/ports/channels */
171 #define SNDRV_SEQ_QUEUE_DIRECT		253	/* direct dispatch */
172 
173 	/* event mode flag - NOTE: only 8 bits available! */
174 #define SNDRV_SEQ_TIME_STAMP_TICK	(0<<0) /* timestamp in clock ticks */
175 #define SNDRV_SEQ_TIME_STAMP_REAL	(1<<0) /* timestamp in real time */
176 #define SNDRV_SEQ_TIME_STAMP_MASK	(1<<0)
177 
178 #define SNDRV_SEQ_TIME_MODE_ABS		(0<<1)	/* absolute timestamp */
179 #define SNDRV_SEQ_TIME_MODE_REL		(1<<1)	/* relative to current time */
180 #define SNDRV_SEQ_TIME_MODE_MASK	(1<<1)
181 
182 #define SNDRV_SEQ_EVENT_LENGTH_FIXED	(0<<2)	/* fixed event size */
183 #define SNDRV_SEQ_EVENT_LENGTH_VARIABLE	(1<<2)	/* variable event size */
184 #define SNDRV_SEQ_EVENT_LENGTH_VARUSR	(2<<2)	/* variable event size - user memory space */
185 #define SNDRV_SEQ_EVENT_LENGTH_MASK	(3<<2)
186 
187 #define SNDRV_SEQ_PRIORITY_NORMAL	(0<<4)	/* normal priority */
188 #define SNDRV_SEQ_PRIORITY_HIGH		(1<<4)	/* event should be processed before others */
189 #define SNDRV_SEQ_PRIORITY_MASK		(1<<4)
190 
191 
192 	/* note event */
193 struct snd_seq_ev_note {
194 	unsigned char channel;
195 	unsigned char note;
196 	unsigned char velocity;
197 	unsigned char off_velocity;	/* only for SNDRV_SEQ_EVENT_NOTE */
198 	unsigned int duration;		/* only for SNDRV_SEQ_EVENT_NOTE */
199 };
200 
201 	/* controller event */
202 struct snd_seq_ev_ctrl {
203 	unsigned char channel;
204 	unsigned char unused1, unused2, unused3;	/* pad */
205 	unsigned int param;
206 	signed int value;
207 };
208 
209 	/* generic set of bytes (12x8 bit) */
210 struct snd_seq_ev_raw8 {
211 	unsigned char d[12];	/* 8 bit value */
212 };
213 
214 	/* generic set of integers (3x32 bit) */
215 struct snd_seq_ev_raw32 {
216 	unsigned int d[3];	/* 32 bit value */
217 };
218 
219 	/* external stored data */
220 struct snd_seq_ev_ext {
221 	unsigned int len;	/* length of data */
222 	void *ptr;		/* pointer to data (note: maybe 64-bit) */
223 } __attribute__((packed));
224 
225 struct snd_seq_result {
226 	int event;		/* processed event type */
227 	int result;
228 };
229 
230 
231 struct snd_seq_real_time {
232 	unsigned int tv_sec;	/* seconds */
233 	unsigned int tv_nsec;	/* nanoseconds */
234 };
235 
236 typedef unsigned int snd_seq_tick_time_t;	/* midi ticks */
237 
238 union snd_seq_timestamp {
239 	snd_seq_tick_time_t tick;
240 	struct snd_seq_real_time time;
241 };
242 
243 struct snd_seq_queue_skew {
244 	unsigned int value;
245 	unsigned int base;
246 };
247 
248 	/* queue timer control */
249 struct snd_seq_ev_queue_control {
250 	unsigned char queue;			/* affected queue */
251 	unsigned char pad[3];			/* reserved */
252 	union {
253 		signed int value;		/* affected value (e.g. tempo) */
254 		union snd_seq_timestamp time;	/* time */
255 		unsigned int position;		/* sync position */
256 		struct snd_seq_queue_skew skew;
257 		unsigned int d32[2];
258 		unsigned char d8[8];
259 	} param;
260 };
261 
262 	/* quoted event - inside the kernel only */
263 struct snd_seq_ev_quote {
264 	struct snd_seq_addr origin;		/* original sender */
265 	unsigned short value;		/* optional data */
266 	struct snd_seq_event *event;		/* quoted event */
267 } __attribute__((packed));
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 
280 	struct snd_seq_addr source;	/* source address */
281 	struct snd_seq_addr dest;	/* destination address */
282 
283 	union {				/* event data... */
284 		struct snd_seq_ev_note note;
285 		struct snd_seq_ev_ctrl control;
286 		struct snd_seq_ev_raw8 raw8;
287 		struct snd_seq_ev_raw32 raw32;
288 		struct snd_seq_ev_ext ext;
289 		struct snd_seq_ev_queue_control queue;
290 		union snd_seq_timestamp time;
291 		struct snd_seq_addr addr;
292 		struct snd_seq_connect connect;
293 		struct snd_seq_result result;
294 		struct snd_seq_ev_quote quote;
295 	} data;
296 };
297 
298 
299 /*
300  * bounce event - stored as variable size data
301  */
302 struct snd_seq_event_bounce {
303 	int err;
304 	struct snd_seq_event event;
305 	/* external data follows here. */
306 };
307 
308 
309 	/* system information */
310 struct snd_seq_system_info {
311 	int queues;			/* maximum queues count */
312 	int clients;			/* maximum clients count */
313 	int ports;			/* maximum ports per client */
314 	int channels;			/* maximum channels per port */
315 	int cur_clients;		/* current clients */
316 	int cur_queues;			/* current queues */
317 	char reserved[24];
318 };
319 
320 
321 	/* system running information */
322 struct snd_seq_running_info {
323 	unsigned char client;		/* client id */
324 	unsigned char big_endian;	/* 1 = big-endian */
325 	unsigned char cpu_mode;		/* 4 = 32bit, 8 = 64bit */
326 	unsigned char pad;		/* reserved */
327 	unsigned char reserved[12];
328 };
329 
330 
331 	/* known client numbers */
332 #define SNDRV_SEQ_CLIENT_SYSTEM		0
333 	/* internal client numbers */
334 #define SNDRV_SEQ_CLIENT_DUMMY		14	/* midi through */
335 #define SNDRV_SEQ_CLIENT_OSS		15	/* oss sequencer emulator */
336 
337 
338 	/* client types */
339 typedef int __bitwise snd_seq_client_type_t;
340 #define	NO_CLIENT	((__force snd_seq_client_type_t) 0)
341 #define	USER_CLIENT	((__force snd_seq_client_type_t) 1)
342 #define	KERNEL_CLIENT	((__force snd_seq_client_type_t) 2)
343 
344 	/* event filter flags */
345 #define SNDRV_SEQ_FILTER_BROADCAST	(1<<0)	/* accept broadcast messages */
346 #define SNDRV_SEQ_FILTER_MULTICAST	(1<<1)	/* accept multicast messages */
347 #define SNDRV_SEQ_FILTER_BOUNCE		(1<<2)	/* accept bounce event in error */
348 #define SNDRV_SEQ_FILTER_USE_EVENT	(1<<31)	/* use event filter */
349 
350 struct snd_seq_client_info {
351 	int client;			/* client number to inquire */
352 	snd_seq_client_type_t type;	/* client type */
353 	char name[64];			/* client name */
354 	unsigned int filter;		/* filter flags */
355 	unsigned char multicast_filter[8]; /* multicast filter bitmap */
356 	unsigned char event_filter[32];	/* event filter bitmap */
357 	int num_ports;			/* RO: number of ports */
358 	int event_lost;			/* number of lost events */
359 	char reserved[64];		/* for future use */
360 };
361 
362 
363 /* client pool size */
364 struct snd_seq_client_pool {
365 	int client;			/* client number to inquire */
366 	int output_pool;		/* outgoing (write) pool size */
367 	int input_pool;			/* incoming (read) pool size */
368 	int output_room;		/* minimum free pool size for select/blocking mode */
369 	int output_free;		/* unused size */
370 	int input_free;			/* unused size */
371 	char reserved[64];
372 };
373 
374 
375 /* Remove events by specified criteria */
376 
377 #define SNDRV_SEQ_REMOVE_INPUT		(1<<0)	/* Flush input queues */
378 #define SNDRV_SEQ_REMOVE_OUTPUT		(1<<1)	/* Flush output queues */
379 #define SNDRV_SEQ_REMOVE_DEST		(1<<2)	/* Restrict by destination q:client:port */
380 #define SNDRV_SEQ_REMOVE_DEST_CHANNEL	(1<<3)	/* Restrict by channel */
381 #define SNDRV_SEQ_REMOVE_TIME_BEFORE	(1<<4)	/* Restrict to before time */
382 #define SNDRV_SEQ_REMOVE_TIME_AFTER	(1<<5)	/* Restrict to time or after */
383 #define SNDRV_SEQ_REMOVE_TIME_TICK	(1<<6)	/* Time is in ticks */
384 #define SNDRV_SEQ_REMOVE_EVENT_TYPE	(1<<7)	/* Restrict to event type */
385 #define SNDRV_SEQ_REMOVE_IGNORE_OFF 	(1<<8)	/* Do not flush off events */
386 #define SNDRV_SEQ_REMOVE_TAG_MATCH 	(1<<9)	/* Restrict to events with given tag */
387 
388 struct snd_seq_remove_events {
389 	unsigned int  remove_mode;	/* Flags that determine what gets removed */
390 
391 	union snd_seq_timestamp time;
392 
393 	unsigned char queue;	/* Queue for REMOVE_DEST */
394 	struct snd_seq_addr dest;	/* Address for REMOVE_DEST */
395 	unsigned char channel;	/* Channel for REMOVE_DEST */
396 
397 	int  type;	/* For REMOVE_EVENT_TYPE */
398 	char  tag;	/* Tag for REMOVE_TAG */
399 
400 	int  reserved[10];	/* To allow for future binary compatibility */
401 
402 };
403 
404 
405 	/* known port numbers */
406 #define SNDRV_SEQ_PORT_SYSTEM_TIMER	0
407 #define SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE	1
408 
409 	/* port capabilities (32 bits) */
410 #define SNDRV_SEQ_PORT_CAP_READ		(1<<0)	/* readable from this port */
411 #define SNDRV_SEQ_PORT_CAP_WRITE	(1<<1)	/* writable to this port */
412 
413 #define SNDRV_SEQ_PORT_CAP_SYNC_READ	(1<<2)
414 #define SNDRV_SEQ_PORT_CAP_SYNC_WRITE	(1<<3)
415 
416 #define SNDRV_SEQ_PORT_CAP_DUPLEX	(1<<4)
417 
418 #define SNDRV_SEQ_PORT_CAP_SUBS_READ	(1<<5)	/* allow read subscription */
419 #define SNDRV_SEQ_PORT_CAP_SUBS_WRITE	(1<<6)	/* allow write subscription */
420 #define SNDRV_SEQ_PORT_CAP_NO_EXPORT	(1<<7)	/* routing not allowed */
421 
422 	/* port type */
423 #define SNDRV_SEQ_PORT_TYPE_SPECIFIC	(1<<0)	/* hardware specific */
424 #define SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1)	/* generic MIDI device */
425 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM	(1<<2)	/* General MIDI compatible device */
426 #define SNDRV_SEQ_PORT_TYPE_MIDI_GS	(1<<3)	/* GS compatible device */
427 #define SNDRV_SEQ_PORT_TYPE_MIDI_XG	(1<<4)	/* XG compatible device */
428 #define SNDRV_SEQ_PORT_TYPE_MIDI_MT32	(1<<5)	/* MT-32 compatible device */
429 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM2	(1<<6)	/* General MIDI 2 compatible device */
430 
431 /* other standards...*/
432 #define SNDRV_SEQ_PORT_TYPE_SYNTH	(1<<10)	/* Synth device (no MIDI compatible - direct wavetable) */
433 #define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)	/* Sampling device (support sample download) */
434 #define SNDRV_SEQ_PORT_TYPE_SAMPLE	(1<<12)	/* Sampling device (sample can be downloaded at any time) */
435 /*...*/
436 #define SNDRV_SEQ_PORT_TYPE_HARDWARE	(1<<16)	/* driver for a hardware device */
437 #define SNDRV_SEQ_PORT_TYPE_SOFTWARE	(1<<17)	/* implemented in software */
438 #define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER	(1<<18)	/* generates sound */
439 #define SNDRV_SEQ_PORT_TYPE_PORT	(1<<19)	/* connects to other device(s) */
440 #define SNDRV_SEQ_PORT_TYPE_APPLICATION	(1<<20)	/* application (sequencer/editor) */
441 
442 /* misc. conditioning flags */
443 #define SNDRV_SEQ_PORT_FLG_GIVEN_PORT	(1<<0)
444 #define SNDRV_SEQ_PORT_FLG_TIMESTAMP	(1<<1)
445 #define SNDRV_SEQ_PORT_FLG_TIME_REAL	(1<<2)
446 
447 struct snd_seq_port_info {
448 	struct snd_seq_addr addr;	/* client/port numbers */
449 	char name[64];			/* port name */
450 
451 	unsigned int capability;	/* port capability bits */
452 	unsigned int type;		/* port type bits */
453 	int midi_channels;		/* channels per MIDI port */
454 	int midi_voices;		/* voices per MIDI port */
455 	int synth_voices;		/* voices per SYNTH port */
456 
457 	int read_use;			/* R/O: subscribers for output (from this port) */
458 	int write_use;			/* R/O: subscribers for input (to this port) */
459 
460 	void *kernel;			/* reserved for kernel use (must be NULL) */
461 	unsigned int flags;		/* misc. conditioning */
462 	unsigned char time_queue;	/* queue # for timestamping */
463 	char reserved[59];		/* for future use */
464 };
465 
466 
467 /* queue flags */
468 #define SNDRV_SEQ_QUEUE_FLG_SYNC	(1<<0)	/* sync enabled */
469 
470 /* queue information */
471 struct snd_seq_queue_info {
472 	int queue;		/* queue id */
473 
474 	/*
475 	 *  security settings, only owner of this queue can start/stop timer
476 	 *  etc. if the queue is locked for other clients
477 	 */
478 	int owner;		/* client id for owner of the queue */
479 	unsigned locked:1;	/* timing queue locked for other queues */
480 	char name[64];		/* name of this queue */
481 	unsigned int flags;	/* flags */
482 	char reserved[60];	/* for future use */
483 
484 };
485 
486 /* queue info/status */
487 struct snd_seq_queue_status {
488 	int queue;			/* queue id */
489 	int events;			/* read-only - queue size */
490 	snd_seq_tick_time_t tick;	/* current tick */
491 	struct snd_seq_real_time time;	/* current time */
492 	int running;			/* running state of queue */
493 	int flags;			/* various flags */
494 	char reserved[64];		/* for the future */
495 };
496 
497 
498 /* queue tempo */
499 struct snd_seq_queue_tempo {
500 	int queue;			/* sequencer queue */
501 	unsigned int tempo;		/* current tempo, us/tick */
502 	int ppq;			/* time resolution, ticks/quarter */
503 	unsigned int skew_value;	/* queue skew */
504 	unsigned int skew_base;		/* queue skew base */
505 	char reserved[24];		/* for the future */
506 };
507 
508 
509 /* sequencer timer sources */
510 #define SNDRV_SEQ_TIMER_ALSA		0	/* ALSA timer */
511 #define SNDRV_SEQ_TIMER_MIDI_CLOCK	1	/* Midi Clock (CLOCK event) */
512 #define SNDRV_SEQ_TIMER_MIDI_TICK	2	/* Midi Timer Tick (TICK event) */
513 
514 /* queue timer info */
515 struct snd_seq_queue_timer {
516 	int queue;			/* sequencer queue */
517 	int type;			/* source timer type */
518 	union {
519 		struct {
520 			struct snd_timer_id id;	/* ALSA's timer ID */
521 			unsigned int resolution;	/* resolution in Hz */
522 		} alsa;
523 	} u;
524 	char reserved[64];		/* for the future use */
525 };
526 
527 
528 struct snd_seq_queue_client {
529 	int queue;		/* sequencer queue */
530 	int client;		/* sequencer client */
531 	int used;		/* queue is used with this client
532 				   (must be set for accepting events) */
533 	/* per client watermarks */
534 	char reserved[64];	/* for future use */
535 };
536 
537 
538 #define SNDRV_SEQ_PORT_SUBS_EXCLUSIVE	(1<<0)	/* exclusive connection */
539 #define SNDRV_SEQ_PORT_SUBS_TIMESTAMP	(1<<1)
540 #define SNDRV_SEQ_PORT_SUBS_TIME_REAL	(1<<2)
541 
542 struct snd_seq_port_subscribe {
543 	struct snd_seq_addr sender;	/* sender address */
544 	struct snd_seq_addr dest;	/* destination address */
545 	unsigned int voices;		/* number of voices to be allocated (0 = don't care) */
546 	unsigned int flags;		/* modes */
547 	unsigned char queue;		/* input time-stamp queue (optional) */
548 	unsigned char pad[3];		/* reserved */
549 	char reserved[64];
550 };
551 
552 /* type of query subscription */
553 #define SNDRV_SEQ_QUERY_SUBS_READ	0
554 #define SNDRV_SEQ_QUERY_SUBS_WRITE	1
555 
556 struct snd_seq_query_subs {
557 	struct snd_seq_addr root;	/* client/port id to be searched */
558 	int type;		/* READ or WRITE */
559 	int index;		/* 0..N-1 */
560 	int num_subs;		/* R/O: number of subscriptions on this port */
561 	struct snd_seq_addr addr;	/* R/O: result */
562 	unsigned char queue;	/* R/O: result */
563 	unsigned int flags;	/* R/O: result */
564 	char reserved[64];	/* for future use */
565 };
566 
567 
568 /*
569  *  IOCTL commands
570  */
571 
572 #define SNDRV_SEQ_IOCTL_PVERSION	_IOR ('S', 0x00, int)
573 #define SNDRV_SEQ_IOCTL_CLIENT_ID	_IOR ('S', 0x01, int)
574 #define SNDRV_SEQ_IOCTL_SYSTEM_INFO	_IOWR('S', 0x02, struct snd_seq_system_info)
575 #define SNDRV_SEQ_IOCTL_RUNNING_MODE	_IOWR('S', 0x03, struct snd_seq_running_info)
576 
577 #define SNDRV_SEQ_IOCTL_GET_CLIENT_INFO	_IOWR('S', 0x10, struct snd_seq_client_info)
578 #define SNDRV_SEQ_IOCTL_SET_CLIENT_INFO	_IOW ('S', 0x11, struct snd_seq_client_info)
579 
580 #define SNDRV_SEQ_IOCTL_CREATE_PORT	_IOWR('S', 0x20, struct snd_seq_port_info)
581 #define SNDRV_SEQ_IOCTL_DELETE_PORT	_IOW ('S', 0x21, struct snd_seq_port_info)
582 #define SNDRV_SEQ_IOCTL_GET_PORT_INFO	_IOWR('S', 0x22, struct snd_seq_port_info)
583 #define SNDRV_SEQ_IOCTL_SET_PORT_INFO	_IOW ('S', 0x23, struct snd_seq_port_info)
584 
585 #define SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT	_IOW ('S', 0x30, struct snd_seq_port_subscribe)
586 #define SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT _IOW ('S', 0x31, struct snd_seq_port_subscribe)
587 
588 #define SNDRV_SEQ_IOCTL_CREATE_QUEUE	_IOWR('S', 0x32, struct snd_seq_queue_info)
589 #define SNDRV_SEQ_IOCTL_DELETE_QUEUE	_IOW ('S', 0x33, struct snd_seq_queue_info)
590 #define SNDRV_SEQ_IOCTL_GET_QUEUE_INFO	_IOWR('S', 0x34, struct snd_seq_queue_info)
591 #define SNDRV_SEQ_IOCTL_SET_QUEUE_INFO	_IOWR('S', 0x35, struct snd_seq_queue_info)
592 #define SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE	_IOWR('S', 0x36, struct snd_seq_queue_info)
593 #define SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS _IOWR('S', 0x40, struct snd_seq_queue_status)
594 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO	_IOWR('S', 0x41, struct snd_seq_queue_tempo)
595 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO	_IOW ('S', 0x42, struct snd_seq_queue_tempo)
596 #define SNDRV_SEQ_IOCTL_GET_QUEUE_OWNER	_IOWR('S', 0x43, struct snd_seq_queue_owner)
597 #define SNDRV_SEQ_IOCTL_SET_QUEUE_OWNER	_IOW ('S', 0x44, struct snd_seq_queue_owner)
598 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER	_IOWR('S', 0x45, struct snd_seq_queue_timer)
599 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER	_IOW ('S', 0x46, struct snd_seq_queue_timer)
600 /* XXX
601 #define SNDRV_SEQ_IOCTL_GET_QUEUE_SYNC	_IOWR('S', 0x53, struct snd_seq_queue_sync)
602 #define SNDRV_SEQ_IOCTL_SET_QUEUE_SYNC	_IOW ('S', 0x54, struct snd_seq_queue_sync)
603 */
604 #define SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT	_IOWR('S', 0x49, struct snd_seq_queue_client)
605 #define SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT	_IOW ('S', 0x4a, struct snd_seq_queue_client)
606 #define SNDRV_SEQ_IOCTL_GET_CLIENT_POOL	_IOWR('S', 0x4b, struct snd_seq_client_pool)
607 #define SNDRV_SEQ_IOCTL_SET_CLIENT_POOL	_IOW ('S', 0x4c, struct snd_seq_client_pool)
608 #define SNDRV_SEQ_IOCTL_REMOVE_EVENTS	_IOW ('S', 0x4e, struct snd_seq_remove_events)
609 #define SNDRV_SEQ_IOCTL_QUERY_SUBS	_IOWR('S', 0x4f, struct snd_seq_query_subs)
610 #define SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION	_IOWR('S', 0x50, struct snd_seq_port_subscribe)
611 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT	_IOWR('S', 0x51, struct snd_seq_client_info)
612 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT	_IOWR('S', 0x52, struct snd_seq_port_info)
613 
614 #endif /* _UAPI__SOUND_ASEQUENCER_H */
615