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TOMOYO Linux Cross Reference
Linux/include/sound/asequencer.h

Version: ~ [ linux-5.2-rc1 ] ~ [ linux-5.1.2 ] ~ [ linux-5.0.16 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.43 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.119 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.176 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.179 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.139 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.67 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
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  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 

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