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001: /*
002:  *  Main header file for the ALSA sequencer
003:  *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
004:  *            (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
005:  *
006:  *
007:  *   This program is free software; you can redistribute it and/or modify
008:  *   it under the terms of the GNU General Public License as published by
009:  *   the Free Software Foundation; either version 2 of the License, or
010:  *   (at your option) any later version.
011:  *
012:  *   This program is distributed in the hope that it will be useful,
013:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
015:  *   GNU General Public License for more details.
016:  *
017:  *   You should have received a copy of the GNU General Public License
018:  *   along with this program; if not, write to the Free Software
019:  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
020:  *
021:  */
022: #ifndef __SOUND_ASEQUENCER_H
023: #define __SOUND_ASEQUENCER_H
024: 
025: 
026: /** version of the sequencer */
027: #define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1)
028: 
029: /**
030:  * definition of sequencer event types
031:  */
032: 
033: /** system messages
034:  * event data type = #snd_seq_result
035:  */
036: #define SNDRV_SEQ_EVENT_SYSTEM          0
037: #define SNDRV_SEQ_EVENT_RESULT          1
038: 
039: /** note messages (channel specific)
040:  * event data type = #snd_seq_ev_note
041:  */
042: #define SNDRV_SEQ_EVENT_NOTE            5
043: #define SNDRV_SEQ_EVENT_NOTEON          6
044: #define SNDRV_SEQ_EVENT_NOTEOFF         7
045: #define SNDRV_SEQ_EVENT_KEYPRESS        8
046:         
047: /** control messages (channel specific)
048:  * event data type = #snd_seq_ev_ctrl
049:  */
050: #define SNDRV_SEQ_EVENT_CONTROLLER      10
051: #define SNDRV_SEQ_EVENT_PGMCHANGE       11
052: #define SNDRV_SEQ_EVENT_CHANPRESS       12
053: #define SNDRV_SEQ_EVENT_PITCHBEND       13      /**< from -8192 to 8191 */
054: #define SNDRV_SEQ_EVENT_CONTROL14       14      /**< 14 bit controller value */
055: #define SNDRV_SEQ_EVENT_NONREGPARAM     15      /**< 14 bit NRPN address + 14 bit unsigned value */
056: #define SNDRV_SEQ_EVENT_REGPARAM        16      /**< 14 bit RPN address + 14 bit unsigned value */
057: 
058: /** synchronisation messages
059:  * event data type = #snd_seq_ev_ctrl
060:  */
061: #define SNDRV_SEQ_EVENT_SONGPOS         20      /* Song Position Pointer with LSB and MSB values */
062: #define SNDRV_SEQ_EVENT_SONGSEL         21      /* Song Select with song ID number */
063: #define SNDRV_SEQ_EVENT_QFRAME          22      /* midi time code quarter frame */
064: #define SNDRV_SEQ_EVENT_TIMESIGN        23      /* SMF Time Signature event */
065: #define SNDRV_SEQ_EVENT_KEYSIGN         24      /* SMF Key Signature event */
066:                 
067: /** timer messages
068:  * event data type = snd_seq_ev_queue_control
069:  */
070: #define SNDRV_SEQ_EVENT_START           30      /* midi Real Time Start message */
071: #define SNDRV_SEQ_EVENT_CONTINUE        31      /* midi Real Time Continue message */
072: #define SNDRV_SEQ_EVENT_STOP            32      /* midi Real Time Stop message */       
073: #define SNDRV_SEQ_EVENT_SETPOS_TICK     33      /* set tick queue position */
074: #define SNDRV_SEQ_EVENT_SETPOS_TIME     34      /* set realtime queue position */
075: #define SNDRV_SEQ_EVENT_TEMPO           35      /* (SMF) Tempo event */
076: #define SNDRV_SEQ_EVENT_CLOCK           36      /* midi Real Time Clock message */
077: #define SNDRV_SEQ_EVENT_TICK            37      /* midi Real Time Tick message */
078: #define SNDRV_SEQ_EVENT_QUEUE_SKEW      38      /* skew queue tempo */
079: 
080: /** others
081:  * event data type = none
082:  */
083: #define SNDRV_SEQ_EVENT_TUNE_REQUEST    40      /* tune request */
084: #define SNDRV_SEQ_EVENT_RESET           41      /* reset to power-on state */
085: #define SNDRV_SEQ_EVENT_SENSING         42      /* "active sensing" event */
086: 
087: /** echo back, kernel private messages
088:  * event data type = any type
089:  */
090: #define SNDRV_SEQ_EVENT_ECHO            50      /* echo event */
091: #define SNDRV_SEQ_EVENT_OSS             51      /* OSS raw event */
092: 
093: /** system status messages (broadcast for subscribers)
094:  * event data type = snd_seq_addr
095:  */
096: #define SNDRV_SEQ_EVENT_CLIENT_START    60      /* new client has connected */
097: #define SNDRV_SEQ_EVENT_CLIENT_EXIT     61      /* client has left the system */
098: #define SNDRV_SEQ_EVENT_CLIENT_CHANGE   62      /* client status/info has changed */
099: #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       ((snd_seq_client_type_t) 0)
341: #define USER_CLIENT     ((snd_seq_client_type_t) 1)
342: #define KERNEL_CLIENT   ((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 /* __SOUND_ASEQUENCER_H */
615: 

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