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 __SOUND_ASEQUENCER_H
23 #define __SOUND_ASEQUENCER_H
24 
25 #ifdef __KERNEL__
26 #include <linux/ioctl.h>
27 #include <sound/asound.h>
28 #endif
29 
30 /** version of the sequencer */
31 #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1)
32 
33 /**
34  * definition of sequencer event types
35  */
36 
37 /** system messages
38  * event data type = #snd_seq_result
39  */
40 #define SNDRV_SEQ_EVENT_SYSTEM		0
41 #define SNDRV_SEQ_EVENT_RESULT		1
42 
43 /** note messages (channel specific)
44  * event data type = #snd_seq_ev_note
45  */
46 #define SNDRV_SEQ_EVENT_NOTE		5
47 #define SNDRV_SEQ_EVENT_NOTEON		6
48 #define SNDRV_SEQ_EVENT_NOTEOFF		7
49 #define SNDRV_SEQ_EVENT_KEYPRESS	8
50 
51 /** control messages (channel specific)
52  * event data type = #snd_seq_ev_ctrl
53  */
54 #define SNDRV_SEQ_EVENT_CONTROLLER	10
55 #define SNDRV_SEQ_EVENT_PGMCHANGE	11
56 #define SNDRV_SEQ_EVENT_CHANPRESS	12
57 #define SNDRV_SEQ_EVENT_PITCHBEND	13	/**< from -8192 to 8191 */
58 #define SNDRV_SEQ_EVENT_CONTROL14	14	/**< 14 bit controller value */
59 #define SNDRV_SEQ_EVENT_NONREGPARAM	15	/**< 14 bit NRPN address + 14 bit unsigned value */
60 #define SNDRV_SEQ_EVENT_REGPARAM	16	/**< 14 bit RPN address + 14 bit unsigned value */
61 
62 /** synchronisation messages
63  * event data type = #snd_seq_ev_ctrl
64  */
65 #define SNDRV_SEQ_EVENT_SONGPOS		20	/* Song Position Pointer with LSB and MSB values */
66 #define SNDRV_SEQ_EVENT_SONGSEL		21	/* Song Select with song ID number */
67 #define SNDRV_SEQ_EVENT_QFRAME		22	/* midi time code quarter frame */
68 #define SNDRV_SEQ_EVENT_TIMESIGN	23	/* SMF Time Signature event */
69 #define SNDRV_SEQ_EVENT_KEYSIGN		24	/* SMF Key Signature event */
70 
71 /** timer messages
72  * event data type = snd_seq_ev_queue_control
73  */
74 #define SNDRV_SEQ_EVENT_START		30	/* midi Real Time Start message */
75 #define SNDRV_SEQ_EVENT_CONTINUE	31	/* midi Real Time Continue message */
76 #define SNDRV_SEQ_EVENT_STOP		32	/* midi Real Time Stop message */
77 #define	SNDRV_SEQ_EVENT_SETPOS_TICK	33	/* set tick queue position */
78 #define SNDRV_SEQ_EVENT_SETPOS_TIME	34	/* set realtime queue position */
79 #define SNDRV_SEQ_EVENT_TEMPO		35	/* (SMF) Tempo event */
80 #define SNDRV_SEQ_EVENT_CLOCK		36	/* midi Real Time Clock message */
81 #define SNDRV_SEQ_EVENT_TICK		37	/* midi Real Time Tick message */
82 #define SNDRV_SEQ_EVENT_QUEUE_SKEW	38	/* skew queue tempo */
83 
84 /** others
85  * event data type = none
86  */
87 #define SNDRV_SEQ_EVENT_TUNE_REQUEST	40	/* tune request */
88 #define SNDRV_SEQ_EVENT_RESET		41	/* reset to power-on state */
89 #define SNDRV_SEQ_EVENT_SENSING		42	/* "active sensing" event */
90 
91 /** echo back, kernel private messages
92  * event data type = any type
93  */
94 #define SNDRV_SEQ_EVENT_ECHO		50	/* echo event */
95 #define SNDRV_SEQ_EVENT_OSS		51	/* OSS raw event */
96 
97 /** system status messages (broadcast for subscribers)
98  * event data type = snd_seq_addr
99  */
100 #define SNDRV_SEQ_EVENT_CLIENT_START	60	/* new client has connected */
101 #define SNDRV_SEQ_EVENT_CLIENT_EXIT	61	/* client has left the system */
102 #define SNDRV_SEQ_EVENT_CLIENT_CHANGE	62	/* client status/info has changed */
103 #define SNDRV_SEQ_EVENT_PORT_START	63	/* new port was created */
104 #define SNDRV_SEQ_EVENT_PORT_EXIT	64	/* port was deleted from system */
105 #define SNDRV_SEQ_EVENT_PORT_CHANGE	65	/* port status/info has changed */
106 
107 /** port connection changes
108  * event data type = snd_seq_connect
109  */
110 #define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED	66	/* ports connected */
111 #define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67	/* ports disconnected */
112 
113 /* 70-89:  synthesizer events - obsoleted */
114 
115 /** user-defined events with fixed length
116  * event data type = any
117  */
118 #define SNDRV_SEQ_EVENT_USR0		90
119 #define SNDRV_SEQ_EVENT_USR1		91
120 #define SNDRV_SEQ_EVENT_USR2		92
121 #define SNDRV_SEQ_EVENT_USR3		93
122 #define SNDRV_SEQ_EVENT_USR4		94
123 #define SNDRV_SEQ_EVENT_USR5		95
124 #define SNDRV_SEQ_EVENT_USR6		96
125 #define SNDRV_SEQ_EVENT_USR7		97
126 #define SNDRV_SEQ_EVENT_USR8		98
127 #define SNDRV_SEQ_EVENT_USR9		99
128 
129 /* 100-118: instrument layer - obsoleted */
130 /* 119-129: reserved */
131 
132 /* 130-139: variable length events
133  * event data type = snd_seq_ev_ext
134  * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
135  */
136 #define SNDRV_SEQ_EVENT_SYSEX		130	/* system exclusive data (variable length) */
137 #define SNDRV_SEQ_EVENT_BOUNCE		131	/* error event */
138 /* 132-134: reserved */
139 #define SNDRV_SEQ_EVENT_USR_VAR0	135
140 #define SNDRV_SEQ_EVENT_USR_VAR1	136
141 #define SNDRV_SEQ_EVENT_USR_VAR2	137
142 #define SNDRV_SEQ_EVENT_USR_VAR3	138
143 #define SNDRV_SEQ_EVENT_USR_VAR4	139
144 
145 /* 150-151: kernel events with quote - DO NOT use in user clients */
146 #define SNDRV_SEQ_EVENT_KERNEL_ERROR	150
147 #define SNDRV_SEQ_EVENT_KERNEL_QUOTE	151	/* obsolete */
148 
149 /* 152-191: reserved */
150 
151 /* 192-254: hardware specific events */
152 
153 /* 255: special event */
154 #define SNDRV_SEQ_EVENT_NONE		255
155 
156 
157 typedef unsigned char snd_seq_event_type_t;
158 
159 /** event address */
160 struct snd_seq_addr {
161 	unsigned char client;	/**< Client number:         0..255, 255 = broadcast to all clients */
162 	unsigned char port;	/**< Port within client:    0..255, 255 = broadcast to all ports */
163 };
164 
165 /** port connection */
166 struct snd_seq_connect {
167 	struct snd_seq_addr sender;
168 	struct snd_seq_addr dest;
169 };
170 
171 
172 #define SNDRV_SEQ_ADDRESS_UNKNOWN	253	/* unknown source */
173 #define SNDRV_SEQ_ADDRESS_SUBSCRIBERS	254	/* send event to all subscribed ports */
174 #define SNDRV_SEQ_ADDRESS_BROADCAST	255	/* send event to all queues/clients/ports/channels */
175 #define SNDRV_SEQ_QUEUE_DIRECT		253	/* direct dispatch */
176 
177 	/* event mode flag - NOTE: only 8 bits available! */
178 #define SNDRV_SEQ_TIME_STAMP_TICK	(0<<0) /* timestamp in clock ticks */
179 #define SNDRV_SEQ_TIME_STAMP_REAL	(1<<0) /* timestamp in real time */
180 #define SNDRV_SEQ_TIME_STAMP_MASK	(1<<0)
181 
182 #define SNDRV_SEQ_TIME_MODE_ABS		(0<<1)	/* absolute timestamp */
183 #define SNDRV_SEQ_TIME_MODE_REL		(1<<1)	/* relative to current time */
184 #define SNDRV_SEQ_TIME_MODE_MASK	(1<<1)
185 
186 #define SNDRV_SEQ_EVENT_LENGTH_FIXED	(0<<2)	/* fixed event size */
187 #define SNDRV_SEQ_EVENT_LENGTH_VARIABLE	(1<<2)	/* variable event size */
188 #define SNDRV_SEQ_EVENT_LENGTH_VARUSR	(2<<2)	/* variable event size - user memory space */
189 #define SNDRV_SEQ_EVENT_LENGTH_MASK	(3<<2)
190 
191 #define SNDRV_SEQ_PRIORITY_NORMAL	(0<<4)	/* normal priority */
192 #define SNDRV_SEQ_PRIORITY_HIGH		(1<<4)	/* event should be processed before others */
193 #define SNDRV_SEQ_PRIORITY_MASK		(1<<4)
194 
195 
196 	/* note event */
197 struct snd_seq_ev_note {
198 	unsigned char channel;
199 	unsigned char note;
200 	unsigned char velocity;
201 	unsigned char off_velocity;	/* only for SNDRV_SEQ_EVENT_NOTE */
202 	unsigned int duration;		/* only for SNDRV_SEQ_EVENT_NOTE */
203 };
204 
205 	/* controller event */
206 struct snd_seq_ev_ctrl {
207 	unsigned char channel;
208 	unsigned char unused1, unused2, unused3;	/* pad */
209 	unsigned int param;
210 	signed int value;
211 };
212 
213 	/* generic set of bytes (12x8 bit) */
214 struct snd_seq_ev_raw8 {
215 	unsigned char d[12];	/* 8 bit value */
216 };
217 
218 	/* generic set of integers (3x32 bit) */
219 struct snd_seq_ev_raw32 {
220 	unsigned int d[3];	/* 32 bit value */
221 };
222 
223 	/* external stored data */
224 struct snd_seq_ev_ext {
225 	unsigned int len;	/* length of data */
226 	void *ptr;		/* pointer to data (note: maybe 64-bit) */
227 } __attribute__((packed));
228 
229 struct snd_seq_result {
230 	int event;		/* processed event type */
231 	int result;
232 };
233 
234 
235 struct snd_seq_real_time {
236 	unsigned int tv_sec;	/* seconds */
237 	unsigned int tv_nsec;	/* nanoseconds */
238 };
239 
240 typedef unsigned int snd_seq_tick_time_t;	/* midi ticks */
241 
242 union snd_seq_timestamp {
243 	snd_seq_tick_time_t tick;
244 	struct snd_seq_real_time time;
245 };
246 
247 struct snd_seq_queue_skew {
248 	unsigned int value;
249 	unsigned int base;
250 };
251 
252 	/* queue timer control */
253 struct snd_seq_ev_queue_control {
254 	unsigned char queue;			/* affected queue */
255 	unsigned char pad[3];			/* reserved */
256 	union {
257 		signed int value;		/* affected value (e.g. tempo) */
258 		union snd_seq_timestamp time;	/* time */
259 		unsigned int position;		/* sync position */
260 		struct snd_seq_queue_skew skew;
261 		unsigned int d32[2];
262 		unsigned char d8[8];
263 	} param;
264 };
265 
266 	/* quoted event - inside the kernel only */
267 struct snd_seq_ev_quote {
268 	struct snd_seq_addr origin;		/* original sender */
269 	unsigned short value;		/* optional data */
270 	struct snd_seq_event *event;		/* quoted event */
271 } __attribute__((packed));
272 
273 
274 	/* sequencer event */
275 struct snd_seq_event {
276 	snd_seq_event_type_t type;	/* event type */
277 	unsigned char flags;		/* event flags */
278 	char tag;
279 
280 	unsigned char queue;		/* schedule queue */
281 	union snd_seq_timestamp time;	/* schedule time */
282 
283 
284 	struct snd_seq_addr source;	/* source address */
285 	struct snd_seq_addr dest;	/* destination address */
286 
287 	union {				/* event data... */
288 		struct snd_seq_ev_note note;
289 		struct snd_seq_ev_ctrl control;
290 		struct snd_seq_ev_raw8 raw8;
291 		struct snd_seq_ev_raw32 raw32;
292 		struct snd_seq_ev_ext ext;
293 		struct snd_seq_ev_queue_control queue;
294 		union snd_seq_timestamp time;
295 		struct snd_seq_addr addr;
296 		struct snd_seq_connect connect;
297 		struct snd_seq_result result;
298 		struct snd_seq_ev_quote quote;
299 	} data;
300 };
301 
302 
303 /*
304  * bounce event - stored as variable size data
305  */
306 struct snd_seq_event_bounce {
307 	int err;
308 	struct snd_seq_event event;
309 	/* external data follows here. */
310 };
311 
312 #ifdef __KERNEL__
313 
314 /* helper macro */
315 #define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce)))
316 
317 /*
318  * type check macros
319  */
320 /* result events: 0-4 */
321 #define snd_seq_ev_is_result_type(ev)	((ev)->type < 5)
322 /* channel specific events: 5-19 */
323 #define snd_seq_ev_is_channel_type(ev)	((ev)->type >= 5 && (ev)->type < 20)
324 /* note events: 5-9 */
325 #define snd_seq_ev_is_note_type(ev)	((ev)->type >= 5 && (ev)->type < 10)
326 /* control events: 10-19 */
327 #define snd_seq_ev_is_control_type(ev)	((ev)->type >= 10 && (ev)->type < 20)
328 /* queue control events: 30-39 */
329 #define snd_seq_ev_is_queue_type(ev)	((ev)->type >= 30 && (ev)->type < 40)
330 /* system status messages */
331 #define snd_seq_ev_is_message_type(ev)	((ev)->type >= 60 && (ev)->type < 69)
332 /* sample messages */
333 #define snd_seq_ev_is_sample_type(ev)	((ev)->type >= 70 && (ev)->type < 79)
334 /* user-defined messages */
335 #define snd_seq_ev_is_user_type(ev)	((ev)->type >= 90 && (ev)->type < 99)
336 /* fixed length events: 0-99 */
337 #define snd_seq_ev_is_fixed_type(ev)	((ev)->type < 100)
338 /* variable length events: 130-139 */
339 #define snd_seq_ev_is_variable_type(ev)	((ev)->type >= 130 && (ev)->type < 140)
340 /* reserved for kernel */
341 #define snd_seq_ev_is_reserved(ev)	((ev)->type >= 150)
342 
343 /* direct dispatched events */
344 #define snd_seq_ev_is_direct(ev)	((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT)
345 
346 /*
347  * macros to check event flags
348  */
349 /* prior events */
350 #define snd_seq_ev_is_prior(ev)		(((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH)
351 
352 /* event length type */
353 #define snd_seq_ev_length_type(ev)	((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK)
354 #define snd_seq_ev_is_fixed(ev)		(snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED)
355 #define snd_seq_ev_is_variable(ev)	(snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
356 #define snd_seq_ev_is_varusr(ev)	(snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR)
357 
358 /* time-stamp type */
359 #define snd_seq_ev_timestamp_type(ev)	((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK)
360 #define snd_seq_ev_is_tick(ev)		(snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK)
361 #define snd_seq_ev_is_real(ev)		(snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL)
362 
363 /* time-mode type */
364 #define snd_seq_ev_timemode_type(ev)	((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK)
365 #define snd_seq_ev_is_abstime(ev)	(snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS)
366 #define snd_seq_ev_is_reltime(ev)	(snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL)
367 
368 /* queue sync port */
369 #define snd_seq_queue_sync_port(q)	((q) + 16)
370 
371 #endif /* __KERNEL__ */
372 
373 	/* system information */
374 struct snd_seq_system_info {
375 	int queues;			/* maximum queues count */
376 	int clients;			/* maximum clients count */
377 	int ports;			/* maximum ports per client */
378 	int channels;			/* maximum channels per port */
379 	int cur_clients;		/* current clients */
380 	int cur_queues;			/* current queues */
381 	char reserved[24];
382 };
383 
384 
385 	/* system running information */
386 struct snd_seq_running_info {
387 	unsigned char client;		/* client id */
388 	unsigned char big_endian;	/* 1 = big-endian */
389 	unsigned char cpu_mode;		/* 4 = 32bit, 8 = 64bit */
390 	unsigned char pad;		/* reserved */
391 	unsigned char reserved[12];
392 };
393 
394 
395 	/* known client numbers */
396 #define SNDRV_SEQ_CLIENT_SYSTEM		0
397 	/* internal client numbers */
398 #define SNDRV_SEQ_CLIENT_DUMMY		14	/* midi through */
399 #define SNDRV_SEQ_CLIENT_OSS		15	/* oss sequencer emulator */
400 
401 
402 	/* client types */
403 typedef int __bitwise snd_seq_client_type_t;
404 #define	NO_CLIENT	((__force snd_seq_client_type_t) 0)
405 #define	USER_CLIENT	((__force snd_seq_client_type_t) 1)
406 #define	KERNEL_CLIENT	((__force snd_seq_client_type_t) 2)
407 
408 	/* event filter flags */
409 #define SNDRV_SEQ_FILTER_BROADCAST	(1<<0)	/* accept broadcast messages */
410 #define SNDRV_SEQ_FILTER_MULTICAST	(1<<1)	/* accept multicast messages */
411 #define SNDRV_SEQ_FILTER_BOUNCE		(1<<2)	/* accept bounce event in error */
412 #define SNDRV_SEQ_FILTER_USE_EVENT	(1<<31)	/* use event filter */
413 
414 struct snd_seq_client_info {
415 	int client;			/* client number to inquire */
416 	snd_seq_client_type_t type;	/* client type */
417 	char name[64];			/* client name */
418 	unsigned int filter;		/* filter flags */
419 	unsigned char multicast_filter[8]; /* multicast filter bitmap */
420 	unsigned char event_filter[32];	/* event filter bitmap */
421 	int num_ports;			/* RO: number of ports */
422 	int event_lost;			/* number of lost events */
423 	char reserved[64];		/* for future use */
424 };
425 
426 
427 /* client pool size */
428 struct snd_seq_client_pool {
429 	int client;			/* client number to inquire */
430 	int output_pool;		/* outgoing (write) pool size */
431 	int input_pool;			/* incoming (read) pool size */
432 	int output_room;		/* minimum free pool size for select/blocking mode */
433 	int output_free;		/* unused size */
434 	int input_free;			/* unused size */
435 	char reserved[64];
436 };
437 
438 
439 /* Remove events by specified criteria */
440 
441 #define SNDRV_SEQ_REMOVE_INPUT		(1<<0)	/* Flush input queues */
442 #define SNDRV_SEQ_REMOVE_OUTPUT		(1<<1)	/* Flush output queues */
443 #define SNDRV_SEQ_REMOVE_DEST		(1<<2)	/* Restrict by destination q:client:port */
444 #define SNDRV_SEQ_REMOVE_DEST_CHANNEL	(1<<3)	/* Restrict by channel */
445 #define SNDRV_SEQ_REMOVE_TIME_BEFORE	(1<<4)	/* Restrict to before time */
446 #define SNDRV_SEQ_REMOVE_TIME_AFTER	(1<<5)	/* Restrict to time or after */
447 #define SNDRV_SEQ_REMOVE_TIME_TICK	(1<<6)	/* Time is in ticks */
448 #define SNDRV_SEQ_REMOVE_EVENT_TYPE	(1<<7)	/* Restrict to event type */
449 #define SNDRV_SEQ_REMOVE_IGNORE_OFF 	(1<<8)	/* Do not flush off events */
450 #define SNDRV_SEQ_REMOVE_TAG_MATCH 	(1<<9)	/* Restrict to events with given tag */
451 
452 struct snd_seq_remove_events {
453 	unsigned int  remove_mode;	/* Flags that determine what gets removed */
454 
455 	union snd_seq_timestamp time;
456 
457 	unsigned char queue;	/* Queue for REMOVE_DEST */
458 	struct snd_seq_addr dest;	/* Address for REMOVE_DEST */
459 	unsigned char channel;	/* Channel for REMOVE_DEST */
460 
461 	int  type;	/* For REMOVE_EVENT_TYPE */
462 	char  tag;	/* Tag for REMOVE_TAG */
463 
464 	int  reserved[10];	/* To allow for future binary compatibility */
465 
466 };
467 
468 
469 	/* known port numbers */
470 #define SNDRV_SEQ_PORT_SYSTEM_TIMER	0
471 #define SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE	1
472 
473 	/* port capabilities (32 bits) */
474 #define SNDRV_SEQ_PORT_CAP_READ		(1<<0)	/* readable from this port */
475 #define SNDRV_SEQ_PORT_CAP_WRITE	(1<<1)	/* writable to this port */
476 
477 #define SNDRV_SEQ_PORT_CAP_SYNC_READ	(1<<2)
478 #define SNDRV_SEQ_PORT_CAP_SYNC_WRITE	(1<<3)
479 
480 #define SNDRV_SEQ_PORT_CAP_DUPLEX	(1<<4)
481 
482 #define SNDRV_SEQ_PORT_CAP_SUBS_READ	(1<<5)	/* allow read subscription */
483 #define SNDRV_SEQ_PORT_CAP_SUBS_WRITE	(1<<6)	/* allow write subscription */
484 #define SNDRV_SEQ_PORT_CAP_NO_EXPORT	(1<<7)	/* routing not allowed */
485 
486 	/* port type */
487 #define SNDRV_SEQ_PORT_TYPE_SPECIFIC	(1<<0)	/* hardware specific */
488 #define SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1)	/* generic MIDI device */
489 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM	(1<<2)	/* General MIDI compatible device */
490 #define SNDRV_SEQ_PORT_TYPE_MIDI_GS	(1<<3)	/* GS compatible device */
491 #define SNDRV_SEQ_PORT_TYPE_MIDI_XG	(1<<4)	/* XG compatible device */
492 #define SNDRV_SEQ_PORT_TYPE_MIDI_MT32	(1<<5)	/* MT-32 compatible device */
493 #define SNDRV_SEQ_PORT_TYPE_MIDI_GM2	(1<<6)	/* General MIDI 2 compatible device */
494 
495 /* other standards...*/
496 #define SNDRV_SEQ_PORT_TYPE_SYNTH	(1<<10)	/* Synth device (no MIDI compatible - direct wavetable) */
497 #define SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11)	/* Sampling device (support sample download) */
498 #define SNDRV_SEQ_PORT_TYPE_SAMPLE	(1<<12)	/* Sampling device (sample can be downloaded at any time) */
499 /*...*/
500 #define SNDRV_SEQ_PORT_TYPE_HARDWARE	(1<<16)	/* driver for a hardware device */
501 #define SNDRV_SEQ_PORT_TYPE_SOFTWARE	(1<<17)	/* implemented in software */
502 #define SNDRV_SEQ_PORT_TYPE_SYNTHESIZER	(1<<18)	/* generates sound */
503 #define SNDRV_SEQ_PORT_TYPE_PORT	(1<<19)	/* connects to other device(s) */
504 #define SNDRV_SEQ_PORT_TYPE_APPLICATION	(1<<20)	/* application (sequencer/editor) */
505 
506 /* misc. conditioning flags */
507 #define SNDRV_SEQ_PORT_FLG_GIVEN_PORT	(1<<0)
508 #define SNDRV_SEQ_PORT_FLG_TIMESTAMP	(1<<1)
509 #define SNDRV_SEQ_PORT_FLG_TIME_REAL	(1<<2)
510 
511 struct snd_seq_port_info {
512 	struct snd_seq_addr addr;	/* client/port numbers */
513 	char name[64];			/* port name */
514 
515 	unsigned int capability;	/* port capability bits */
516 	unsigned int type;		/* port type bits */
517 	int midi_channels;		/* channels per MIDI port */
518 	int midi_voices;		/* voices per MIDI port */
519 	int synth_voices;		/* voices per SYNTH port */
520 
521 	int read_use;			/* R/O: subscribers for output (from this port) */
522 	int write_use;			/* R/O: subscribers for input (to this port) */
523 
524 	void *kernel;			/* reserved for kernel use (must be NULL) */
525 	unsigned int flags;		/* misc. conditioning */
526 	unsigned char time_queue;	/* queue # for timestamping */
527 	char reserved[59];		/* for future use */
528 };
529 
530 
531 /* queue flags */
532 #define SNDRV_SEQ_QUEUE_FLG_SYNC	(1<<0)	/* sync enabled */
533 
534 /* queue information */
535 struct snd_seq_queue_info {
536 	int queue;		/* queue id */
537 
538 	/*
539 	 *  security settings, only owner of this queue can start/stop timer
540 	 *  etc. if the queue is locked for other clients
541 	 */
542 	int owner;		/* client id for owner of the queue */
543 	unsigned locked:1;	/* timing queue locked for other queues */
544 	char name[64];		/* name of this queue */
545 	unsigned int flags;	/* flags */
546 	char reserved[60];	/* for future use */
547 
548 };
549 
550 /* queue info/status */
551 struct snd_seq_queue_status {
552 	int queue;			/* queue id */
553 	int events;			/* read-only - queue size */
554 	snd_seq_tick_time_t tick;	/* current tick */
555 	struct snd_seq_real_time time;	/* current time */
556 	int running;			/* running state of queue */
557 	int flags;			/* various flags */
558 	char reserved[64];		/* for the future */
559 };
560 
561 
562 /* queue tempo */
563 struct snd_seq_queue_tempo {
564 	int queue;			/* sequencer queue */
565 	unsigned int tempo;		/* current tempo, us/tick */
566 	int ppq;			/* time resolution, ticks/quarter */
567 	unsigned int skew_value;	/* queue skew */
568 	unsigned int skew_base;		/* queue skew base */
569 	char reserved[24];		/* for the future */
570 };
571 
572 
573 /* sequencer timer sources */
574 #define SNDRV_SEQ_TIMER_ALSA		0	/* ALSA timer */
575 #define SNDRV_SEQ_TIMER_MIDI_CLOCK	1	/* Midi Clock (CLOCK event) */
576 #define SNDRV_SEQ_TIMER_MIDI_TICK	2	/* Midi Timer Tick (TICK event) */
577 
578 /* queue timer info */
579 struct snd_seq_queue_timer {
580 	int queue;			/* sequencer queue */
581 	int type;			/* source timer type */
582 	union {
583 		struct {
584 			struct snd_timer_id id;	/* ALSA's timer ID */
585 			unsigned int resolution;	/* resolution in Hz */
586 		} alsa;
587 	} u;
588 	char reserved[64];		/* for the future use */
589 };
590 
591 
592 struct snd_seq_queue_client {
593 	int queue;		/* sequencer queue */
594 	int client;		/* sequencer client */
595 	int used;		/* queue is used with this client
596 				   (must be set for accepting events) */
597 	/* per client watermarks */
598 	char reserved[64];	/* for future use */
599 };
600 
601 
602 #define SNDRV_SEQ_PORT_SUBS_EXCLUSIVE	(1<<0)	/* exclusive connection */
603 #define SNDRV_SEQ_PORT_SUBS_TIMESTAMP	(1<<1)
604 #define SNDRV_SEQ_PORT_SUBS_TIME_REAL	(1<<2)
605 
606 struct snd_seq_port_subscribe {
607 	struct snd_seq_addr sender;	/* sender address */
608 	struct snd_seq_addr dest;	/* destination address */
609 	unsigned int voices;		/* number of voices to be allocated (0 = don't care) */
610 	unsigned int flags;		/* modes */
611 	unsigned char queue;		/* input time-stamp queue (optional) */
612 	unsigned char pad[3];		/* reserved */
613 	char reserved[64];
614 };
615 
616 /* type of query subscription */
617 #define SNDRV_SEQ_QUERY_SUBS_READ	0
618 #define SNDRV_SEQ_QUERY_SUBS_WRITE	1
619 
620 struct snd_seq_query_subs {
621 	struct snd_seq_addr root;	/* client/port id to be searched */
622 	int type;		/* READ or WRITE */
623 	int index;		/* 0..N-1 */
624 	int num_subs;		/* R/O: number of subscriptions on this port */
625 	struct snd_seq_addr addr;	/* R/O: result */
626 	unsigned char queue;	/* R/O: result */
627 	unsigned int flags;	/* R/O: result */
628 	char reserved[64];	/* for future use */
629 };
630 
631 
632 /*
633  *  IOCTL commands
634  */
635 
636 #define SNDRV_SEQ_IOCTL_PVERSION	_IOR ('S', 0x00, int)
637 #define SNDRV_SEQ_IOCTL_CLIENT_ID	_IOR ('S', 0x01, int)
638 #define SNDRV_SEQ_IOCTL_SYSTEM_INFO	_IOWR('S', 0x02, struct snd_seq_system_info)
639 #define SNDRV_SEQ_IOCTL_RUNNING_MODE	_IOWR('S', 0x03, struct snd_seq_running_info)
640 
641 #define SNDRV_SEQ_IOCTL_GET_CLIENT_INFO	_IOWR('S', 0x10, struct snd_seq_client_info)
642 #define SNDRV_SEQ_IOCTL_SET_CLIENT_INFO	_IOW ('S', 0x11, struct snd_seq_client_info)
643 
644 #define SNDRV_SEQ_IOCTL_CREATE_PORT	_IOWR('S', 0x20, struct snd_seq_port_info)
645 #define SNDRV_SEQ_IOCTL_DELETE_PORT	_IOW ('S', 0x21, struct snd_seq_port_info)
646 #define SNDRV_SEQ_IOCTL_GET_PORT_INFO	_IOWR('S', 0x22, struct snd_seq_port_info)
647 #define SNDRV_SEQ_IOCTL_SET_PORT_INFO	_IOW ('S', 0x23, struct snd_seq_port_info)
648 
649 #define SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT	_IOW ('S', 0x30, struct snd_seq_port_subscribe)
650 #define SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT _IOW ('S', 0x31, struct snd_seq_port_subscribe)
651 
652 #define SNDRV_SEQ_IOCTL_CREATE_QUEUE	_IOWR('S', 0x32, struct snd_seq_queue_info)
653 #define SNDRV_SEQ_IOCTL_DELETE_QUEUE	_IOW ('S', 0x33, struct snd_seq_queue_info)
654 #define SNDRV_SEQ_IOCTL_GET_QUEUE_INFO	_IOWR('S', 0x34, struct snd_seq_queue_info)
655 #define SNDRV_SEQ_IOCTL_SET_QUEUE_INFO	_IOWR('S', 0x35, struct snd_seq_queue_info)
656 #define SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE	_IOWR('S', 0x36, struct snd_seq_queue_info)
657 #define SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS _IOWR('S', 0x40, struct snd_seq_queue_status)
658 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO	_IOWR('S', 0x41, struct snd_seq_queue_tempo)
659 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO	_IOW ('S', 0x42, struct snd_seq_queue_tempo)
660 #define SNDRV_SEQ_IOCTL_GET_QUEUE_OWNER	_IOWR('S', 0x43, struct snd_seq_queue_owner)
661 #define SNDRV_SEQ_IOCTL_SET_QUEUE_OWNER	_IOW ('S', 0x44, struct snd_seq_queue_owner)
662 #define SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER	_IOWR('S', 0x45, struct snd_seq_queue_timer)
663 #define SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER	_IOW ('S', 0x46, struct snd_seq_queue_timer)
664 /* XXX
665 #define SNDRV_SEQ_IOCTL_GET_QUEUE_SYNC	_IOWR('S', 0x53, struct snd_seq_queue_sync)
666 #define SNDRV_SEQ_IOCTL_SET_QUEUE_SYNC	_IOW ('S', 0x54, struct snd_seq_queue_sync)
667 */
668 #define SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT	_IOWR('S', 0x49, struct snd_seq_queue_client)
669 #define SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT	_IOW ('S', 0x4a, struct snd_seq_queue_client)
670 #define SNDRV_SEQ_IOCTL_GET_CLIENT_POOL	_IOWR('S', 0x4b, struct snd_seq_client_pool)
671 #define SNDRV_SEQ_IOCTL_SET_CLIENT_POOL	_IOW ('S', 0x4c, struct snd_seq_client_pool)
672 #define SNDRV_SEQ_IOCTL_REMOVE_EVENTS	_IOW ('S', 0x4e, struct snd_seq_remove_events)
673 #define SNDRV_SEQ_IOCTL_QUERY_SUBS	_IOWR('S', 0x4f, struct snd_seq_query_subs)
674 #define SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION	_IOWR('S', 0x50, struct snd_seq_port_subscribe)
675 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT	_IOWR('S', 0x51, struct snd_seq_client_info)
676 #define SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT	_IOWR('S', 0x52, struct snd_seq_port_info)
677 
678 #endif /* __SOUND_ASEQUENCER_H */
679