linux/include/sound/asequencer.h
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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
 157typedef unsigned char snd_seq_event_type_t;
 158
 159/** event address */
 160struct 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 */
 166struct 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 */
 197struct 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 */
 206struct 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) */
 214struct snd_seq_ev_raw8 {
 215        unsigned char d[12];    /* 8 bit value */
 216};
 217
 218        /* generic set of integers (3x32 bit) */
 219struct snd_seq_ev_raw32 {
 220        unsigned int d[3];      /* 32 bit value */
 221};
 222
 223        /* external stored data */
 224struct 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
 229struct snd_seq_result {
 230        int event;              /* processed event type */
 231        int result;
 232};
 233
 234
 235struct snd_seq_real_time {
 236        unsigned int tv_sec;    /* seconds */
 237        unsigned int tv_nsec;   /* nanoseconds */
 238};
 239
 240typedef unsigned int snd_seq_tick_time_t;       /* midi ticks */
 241
 242union snd_seq_timestamp {
 243        snd_seq_tick_time_t tick;
 244        struct snd_seq_real_time time;
 245};
 246
 247struct snd_seq_queue_skew {
 248        unsigned int value;
 249        unsigned int base;
 250};
 251
 252        /* queue timer control */
 253struct 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 */
 267struct 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 */
 275struct 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 */
 306struct 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 */
 374struct 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 */
 386struct 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 */
 403typedef 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
 414struct 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 */
 428struct 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
 452struct 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
 511struct 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 */
 535struct 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 */
 551struct 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 */
 563struct 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 */
 579struct 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
 592struct 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
 606struct 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
 620struct 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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