root/include/linux/soundcard.h

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   1 #ifndef SOUNDCARD_H
   2 #define SOUNDCARD_H
   3 /*
   4  * Copyright by Hannu Savolainen 1993
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * 
  28  */
  29 
  30  /* 
  31   * If you make modifications to this file, please contact me before
  32   * distributing the modified version. There is already enough 
  33   * diversity in the world.
  34   *
  35   * Regards,
  36   * Hannu Savolainen
  37   * hannu@voxware.pp.fi
  38   *
  39   **********************************************************************
  40   * PS. The Hacker's Guide to VoxWare available from 
  41   *     nic.funet.fi:pub/OS/Linux/ALPHA/sound. The file is
  42   *     snd-sdk-doc-0.1.ps.gz (gzipped postscript). It contains
  43   *     some useful information about programming with VoxWare.
  44   *     (NOTE! The pub/OS/Linux/ALPHA/ directories are hidden. You have
  45   *     to cd inside them before the files are accessible.)
  46   **********************************************************************
  47   */
  48 
  49 #define SOUND_VERSION   301
  50 #define VOXWARE
  51 
  52 #include <sys/ioctl.h>
  53 
  54 /*
  55  *      Supported card ID numbers (Should be somewhere else?)
  56  */
  57 
  58 #define SNDCARD_ADLIB           1
  59 #define SNDCARD_SB              2
  60 #define SNDCARD_PAS             3
  61 #define SNDCARD_GUS             4
  62 #define SNDCARD_MPU401          5
  63 #define SNDCARD_SB16            6
  64 #define SNDCARD_SB16MIDI        7
  65 #define SNDCARD_UART6850        8
  66 #define SNDCARD_GUS16           9
  67 #define SNDCARD_MSS             10
  68 #define SNDCARD_PSS             11
  69 #define SNDCARD_SSCAPE          12
  70 #define SNDCARD_PSS_MPU         13
  71 #define SNDCARD_PSS_MSS         14
  72 #define SNDCARD_SSCAPE_MSS      15
  73 #define SNDCARD_TRXPRO          16
  74 #define SNDCARD_TRXPRO_SB       17
  75 #define SNDCARD_TRXPRO_MPU      18
  76 #define SNDCARD_MAD16           19
  77 #define SNDCARD_MAD16_MPU       20
  78 
  79 /***********************************
  80  * IOCTL Commands for /dev/sequencer
  81  */
  82 
  83 #ifndef _IOWR
  84 /*      @(#)ioctlp.h */
  85 
  86 /* Ioctl's have the command encoded in the lower word,
  87  * and the size of any in or out parameters in the upper
  88  * word.  The high 2 bits of the upper word are used
  89  * to encode the in/out status of the parameter; for now
  90  * we restrict parameters to at most 128 bytes.
  91  */
  92 /* #define      IOCTYPE         (0xff<<8) */
  93 #define IOCPARM_MASK    0x7f            /* parameters must be < 128 bytes */
  94 #define IOC_VOID        0x00000000      /* no parameters */
  95 #define IOC_OUT         0x20000000      /* copy out parameters */
  96 #define IOC_IN          0x40000000      /* copy in parameters */
  97 #define IOC_INOUT       (IOC_IN|IOC_OUT)
  98 /* the 0x20000000 is so we can distinguish new ioctl's from old */
  99 #define _IO(x,y)        ((int)(IOC_VOID|(x<<8)|y))
 100 #define _IOR(x,y,t)     ((int)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
 101 #define _IOW(x,y,t)     ((int)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
 102 /* this should be _IORW, but stdio got there first */
 103 #define _IOWR(x,y,t)    ((int)(IOC_INOUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
 104 #endif  /* !_IOWR */
 105 
 106 #define SNDCTL_SEQ_RESET                _IO  ('Q', 0)
 107 #define SNDCTL_SEQ_SYNC                 _IO  ('Q', 1)
 108 #define SNDCTL_SYNTH_INFO               _IOWR('Q', 2, struct synth_info)
 109 #define SNDCTL_SEQ_CTRLRATE             _IOWR('Q', 3, int)      /* Set/get timer resolution (HZ) */
 110 #define SNDCTL_SEQ_GETOUTCOUNT          _IOR ('Q', 4, int)
 111 #define SNDCTL_SEQ_GETINCOUNT           _IOR ('Q', 5, int)
 112 #define SNDCTL_SEQ_PERCMODE             _IOW ('Q', 6, int)
 113 #define SNDCTL_FM_LOAD_INSTR            _IOW ('Q', 7, struct sbi_instrument)    /* Valid for FM only */
 114 #define SNDCTL_SEQ_TESTMIDI             _IOW ('Q', 8, int)
 115 #define SNDCTL_SEQ_RESETSAMPLES         _IOW ('Q', 9, int)
 116 #define SNDCTL_SEQ_NRSYNTHS             _IOR ('Q',10, int)
 117 #define SNDCTL_SEQ_NRMIDIS              _IOR ('Q',11, int)
 118 #define SNDCTL_MIDI_INFO                _IOWR('Q',12, struct midi_info)
 119 #define SNDCTL_SEQ_THRESHOLD            _IOW ('Q',13, int)
 120 #define SNDCTL_SEQ_TRESHOLD             SNDCTL_SEQ_THRESHOLD    /* there was once a typo */
 121 #define SNDCTL_SYNTH_MEMAVL             _IOWR('Q',14, int)      /* in=dev#, out=memsize */
 122 #define SNDCTL_FM_4OP_ENABLE            _IOW ('Q',15, int)      /* in=dev# */
 123 #define SNDCTL_PMGR_ACCESS              _IOWR('Q',16, struct patmgr_info)
 124 #define SNDCTL_SEQ_PANIC                _IO  ('Q',17)
 125 #define SNDCTL_SEQ_OUTOFBAND            _IOW ('Q',18, struct seq_event_rec)
 126 
 127         struct seq_event_rec {
 128                         unsigned char arr[8];
 129                 };
 130 
 131 #define SNDCTL_TMR_TIMEBASE             _IOWR('T', 1, int)
 132 #define SNDCTL_TMR_START                _IO  ('T', 2)
 133 #define SNDCTL_TMR_STOP                 _IO  ('T', 3)
 134 #define SNDCTL_TMR_CONTINUE             _IO  ('T', 4)
 135 #define SNDCTL_TMR_TEMPO                _IOWR('T', 5, int)
 136 #define SNDCTL_TMR_SOURCE               _IOWR('T', 6, int)
 137 #       define TMR_INTERNAL             0x00000001
 138 #       define TMR_EXTERNAL             0x00000002
 139 #               define TMR_MODE_MIDI    0x00000010
 140 #               define TMR_MODE_FSK     0x00000020
 141 #               define TMR_MODE_CLS     0x00000040
 142 #               define TMR_MODE_SMPTE   0x00000080
 143 #define SNDCTL_TMR_METRONOME            _IOW ('T', 7, int)
 144 #define SNDCTL_TMR_SELECT               _IOW ('T', 8, int)
 145 
 146 /*
 147  *      Sample loading mechanism for internal synthesizers (/dev/sequencer)
 148  *      The following patch_info structure has been designed to support
 149  *      Gravis UltraSound. It tries to be universal format for uploading
 150  *      sample based patches but is propably too limited.
 151  */
 152 
 153 struct patch_info {
 154                 short key;              /* Use GUS_PATCH here */
 155 #define GUS_PATCH       0x04fd
 156 #define OBSOLETE_GUS_PATCH      0x02fd
 157                 short device_no;        /* Synthesizer number */
 158                 short instr_no;         /* Midi pgm# */
 159 
 160                 unsigned long mode;
 161 /*
 162  * The least significant byte has the same format than the GUS .PAT
 163  * files
 164  */
 165 #define WAVE_16_BITS    0x01    /* bit 0 = 8 or 16 bit wave data. */
 166 #define WAVE_UNSIGNED   0x02    /* bit 1 = Signed - Unsigned data. */
 167 #define WAVE_LOOPING    0x04    /* bit 2 = looping enabled-1. */
 168 #define WAVE_BIDIR_LOOP 0x08    /* bit 3 = Set is bidirectional looping. */
 169 #define WAVE_LOOP_BACK  0x10    /* bit 4 = Set is looping backward. */
 170 #define WAVE_SUSTAIN_ON 0x20    /* bit 5 = Turn sustaining on. (Env. pts. 3)*/
 171 #define WAVE_ENVELOPES  0x40    /* bit 6 = Enable envelopes - 1 */
 172                                 /*      (use the env_rate/env_offs fields). */
 173 /* Linux specific bits */
 174 #define WAVE_VIBRATO    0x00010000      /* The vibrato info is valid */
 175 #define WAVE_TREMOLO    0x00020000      /* The tremolo info is valid */
 176 #define WAVE_SCALE      0x00040000      /* The scaling info is valid */
 177 /* Other bits must be zeroed */
 178 
 179                 long len;       /* Size of the wave data in bytes */
 180                 long loop_start, loop_end; /* Byte offsets from the beginning */
 181 
 182 /* 
 183  * The base_freq and base_note fields are used when computing the
 184  * playback speed for a note. The base_note defines the tone frequency
 185  * which is heard if the sample is played using the base_freq as the
 186  * playback speed.
 187  *
 188  * The low_note and high_note fields define the minimum and maximum note
 189  * frequencies for which this sample is valid. It is possible to define
 190  * more than one samples for a instrument number at the same time. The
 191  * low_note and high_note fields are used to select the most suitable one.
 192  *
 193  * The fields base_note, high_note and low_note should contain
 194  * the note frequency multiplied by 1000. For example value for the
 195  * middle A is 440*1000.
 196  */
 197 
 198                 unsigned int base_freq;
 199                 unsigned long base_note;
 200                 unsigned long high_note;
 201                 unsigned long low_note;
 202                 int panning;    /* -128=left, 127=right */
 203                 int detuning;
 204 
 205 /*      New fields introduced in version 1.99.5 */
 206 
 207        /* Envelope. Enabled by mode bit WAVE_ENVELOPES  */
 208                 unsigned char   env_rate[ 6 ];   /* GUS HW ramping rate */
 209                 unsigned char   env_offset[ 6 ]; /* 255 == 100% */
 210 
 211         /* 
 212          * The tremolo, vibrato and scale info are not supported yet.
 213          * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
 214          * WAVE_SCALE
 215          */
 216 
 217                 unsigned char   tremolo_sweep;
 218                 unsigned char   tremolo_rate;
 219                 unsigned char   tremolo_depth;
 220         
 221                 unsigned char   vibrato_sweep;
 222                 unsigned char   vibrato_rate;
 223                 unsigned char   vibrato_depth;
 224 
 225                 int             scale_frequency;
 226                 unsigned int    scale_factor;           /* from 0 to 2048 or 0 to 2 */
 227         
 228                 int             volume;
 229                 int             spare[4];
 230                 char data[1];   /* The waveform data starts here */
 231         };
 232 
 233 
 234 struct sysex_info {
 235                 short key;              /* Use GUS_PATCH here */
 236 #define SYSEX_PATCH     0x05fd
 237 #define MAUI_PATCH      0x06fd          /* For future use */
 238                 short device_no;        /* Synthesizer number */
 239                 long len;       /* Size of the sysex data in bytes */
 240                 unsigned char data[1];  /* Sysex data starts here */
 241         };
 242 
 243 /*
 244  * Patch management interface (/dev/sequencer, /dev/patmgr#)
 245  * Don't use these calls if you want to maintain compatibility with
 246  * the future versions of the driver.
 247  */
 248 
 249 #define         PS_NO_PATCHES           0       /* No patch support on device */
 250 #define         PS_MGR_NOT_OK           1       /* Plain patch support (no mgr) */
 251 #define         PS_MGR_OK               2       /* Patch manager supported */
 252 #define         PS_MANAGED              3       /* Patch manager running */
 253 
 254 #define SNDCTL_PMGR_IFACE               _IOWR('P', 1, struct patmgr_info)
 255 
 256 /*
 257  * The patmgr_info is a fixed size structure which is used for two
 258  * different purposes. The intended use is for communication between
 259  * the application using /dev/sequencer and the patch manager daemon
 260  * associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
 261  *
 262  * This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
 263  * a patch manager daemon to read and write device parameters. This
 264  * ioctl available through /dev/sequencer also. Avoid using it since it's
 265  * extremely hardware dependent. In addition access trough /dev/sequencer 
 266  * may confuse the patch manager daemon.
 267  */
 268 
 269 struct patmgr_info {    /* Note! size must be < 4k since kmalloc() is used */
 270           unsigned long key;    /* Don't worry. Reserved for communication
 271                                    between the patch manager and the driver. */
 272 #define PM_K_EVENT              1 /* Event from the /dev/sequencer driver */
 273 #define PM_K_COMMAND            2 /* Request from a application */
 274 #define PM_K_RESPONSE           3 /* From patmgr to application */
 275 #define PM_ERROR                4 /* Error returned by the patmgr */
 276           int device;
 277           int command;
 278 
 279 /* 
 280  * Commands 0x000 to 0xfff reserved for patch manager programs 
 281  */
 282 #define PM_GET_DEVTYPE  1       /* Returns type of the patch mgr interface of dev */
 283 #define         PMTYPE_FM2      1       /* 2 OP fm */
 284 #define         PMTYPE_FM4      2       /* Mixed 4 or 2 op FM (OPL-3) */
 285 #define         PMTYPE_WAVE     3       /* Wave table synthesizer (GUS) */
 286 #define PM_GET_NRPGM    2       /* Returns max # of midi programs in parm1 */
 287 #define PM_GET_PGMMAP   3       /* Returns map of loaded midi programs in data8 */
 288 #define PM_GET_PGM_PATCHES 4    /* Return list of patches of a program (parm1) */
 289 #define PM_GET_PATCH    5       /* Return patch header of patch parm1 */
 290 #define PM_SET_PATCH    6       /* Set patch header of patch parm1 */
 291 #define PM_READ_PATCH   7       /* Read patch (wave) data */
 292 #define PM_WRITE_PATCH  8       /* Write patch (wave) data */
 293 
 294 /*
 295  * Commands 0x1000 to 0xffff are for communication between the patch manager
 296  * and the client
 297  */
 298 #define _PM_LOAD_PATCH  0x100
 299 
 300 /* 
 301  * Commands above 0xffff reserved for device specific use
 302  */
 303 
 304           long parm1;
 305           long parm2;
 306           long parm3;
 307 
 308           union {
 309                 unsigned char data8[4000];
 310                 unsigned short data16[2000];
 311                 unsigned long data32[1000];
 312                 struct patch_info patch;
 313           } data;
 314         };
 315 
 316 /*
 317  * When a patch manager daemon is present, it will be informed by the
 318  * driver when something important happens. For example when the
 319  * /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
 320  * returned. The command field contains the event type:
 321  */
 322 #define PM_E_OPENED             1       /* /dev/sequencer opened */
 323 #define PM_E_CLOSED             2       /* /dev/sequencer closed */
 324 #define PM_E_PATCH_RESET        3       /* SNDCTL_RESETSAMPLES called */
 325 #define PM_E_PATCH_LOADED       4       /* A patch has been loaded by appl */
 326 
 327 /*
 328  * /dev/sequencer input events.
 329  *
 330  * The data written to the /dev/sequencer is a stream of events. Events
 331  * are records of 4 or 8 bytes. The first byte defines the size. 
 332  * Any number of events can be written with a write call. There
 333  * is a set of macros for sending these events. Use these macros if you
 334  * want to maximize portability of your program.
 335  *
 336  * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
 337  * (All input events are currently 4 bytes long. Be prepared to support
 338  * 8 byte events also. If you receive any event having first byte >= 128,
 339  * it's a 8 byte event.
 340  *
 341  * The events are documented at the end of this file.
 342  *
 343  * Normal events (4 bytes)
 344  * There is also a 8 byte version of most of the 4 byte events. The
 345  * 8 byte one is recommended.
 346  */
 347 #define SEQ_NOTEOFF             0
 348 #define SEQ_FMNOTEOFF           SEQ_NOTEOFF     /* Just old name */
 349 #define SEQ_NOTEON              1
 350 #define SEQ_FMNOTEON            SEQ_NOTEON
 351 #define SEQ_WAIT                TMR_WAIT_ABS
 352 #define SEQ_PGMCHANGE           3
 353 #define SEQ_FMPGMCHANGE         SEQ_PGMCHANGE
 354 #define SEQ_SYNCTIMER           TMR_START
 355 #define SEQ_MIDIPUTC            5
 356 #define SEQ_DRUMON              6       /*** OBSOLETE ***/
 357 #define SEQ_DRUMOFF             7       /*** OBSOLETE ***/
 358 #define SEQ_ECHO                TMR_ECHO        /* For synching programs with output */
 359 #define SEQ_AFTERTOUCH          9
 360 #define SEQ_CONTROLLER          10
 361 
 362 /*******************************************
 363  *      Midi controller numbers
 364  *******************************************
 365  * Controllers 0 to 31 (0x00 to 0x1f) and
 366  * 32 to 63 (0x20 to 0x3f) are continuous
 367  * controllers.
 368  * In the MIDI 1.0 these controllers are sent using
 369  * two messages. Controller numbers 0 to 31 are used
 370  * to send the MSB and the controller numbers 32 to 63
 371  * are for the LSB. Note that just 7 bits are used in MIDI bytes.
 372  */
 373 
 374 #define    CTL_BANK_SELECT              0x00
 375 #define    CTL_MODWHEEL                 0x01
 376 #define    CTL_BREATH                   0x02
 377 /*              undefined               0x03 */
 378 #define    CTL_FOOT                     0x04
 379 #define    CTL_PORTAMENTO_TIME          0x05
 380 #define    CTL_DATA_ENTRY               0x06
 381 #define    CTL_MAIN_VOLUME              0x07
 382 #define    CTL_BALANCE                  0x08
 383 /*              undefined               0x09 */
 384 #define    CTL_PAN                      0x0a
 385 #define    CTL_EXPRESSION               0x0b
 386 /*              undefined               0x0c */
 387 /*              undefined               0x0d */
 388 /*              undefined               0x0e */
 389 /*              undefined               0x0f */
 390 #define    CTL_GENERAL_PURPOSE1 0x10
 391 #define    CTL_GENERAL_PURPOSE2 0x11
 392 #define    CTL_GENERAL_PURPOSE3 0x12
 393 #define    CTL_GENERAL_PURPOSE4 0x13
 394 /*              undefined               0x14 - 0x1f */
 395 
 396 /*              undefined               0x20 */
 397 /* The controller numbers 0x21 to 0x3f are reserved for the */
 398 /* least significant bytes of the controllers 0x00 to 0x1f. */
 399 /* These controllers are not recognised by the driver. */
 400 
 401 /* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */
 402 /* 0=OFF and 127=ON (intermediate values are possible) */
 403 #define    CTL_DAMPER_PEDAL             0x40
 404 #define    CTL_SUSTAIN                  0x40    /* Alias */
 405 #define    CTL_HOLD                     0x40    /* Alias */
 406 #define    CTL_PORTAMENTO               0x41
 407 #define    CTL_SOSTENUTO                0x42
 408 #define    CTL_SOFT_PEDAL               0x43
 409 /*              undefined               0x44 */
 410 #define    CTL_HOLD2                    0x45
 411 /*              undefined               0x46 - 0x4f */
 412 
 413 #define    CTL_GENERAL_PURPOSE5 0x50
 414 #define    CTL_GENERAL_PURPOSE6 0x51
 415 #define    CTL_GENERAL_PURPOSE7 0x52
 416 #define    CTL_GENERAL_PURPOSE8 0x53
 417 /*              undefined               0x54 - 0x5a */
 418 #define    CTL_EXT_EFF_DEPTH            0x5b
 419 #define    CTL_TREMOLO_DEPTH            0x5c
 420 #define    CTL_CHORUS_DEPTH             0x5d
 421 #define    CTL_DETUNE_DEPTH             0x5e
 422 #define    CTL_CELESTE_DEPTH            0x5e    /* Alias for the above one */
 423 #define    CTL_PHASER_DEPTH             0x5f
 424 #define    CTL_DATA_INCREMENT           0x60
 425 #define    CTL_DATA_DECREMENT           0x61
 426 #define    CTL_NONREG_PARM_NUM_LSB      0x62
 427 #define    CTL_NONREG_PARM_NUM_MSB      0x63
 428 #define    CTL_REGIST_PARM_NUM_LSB      0x64
 429 #define    CTL_REGIST_PARM_NUM_MSB      0x65
 430 /*              undefined               0x66 - 0x78 */
 431 /*              reserved                0x79 - 0x7f */
 432 
 433 /* Pseudo controllers (not midi compatible) */
 434 #define    CTRL_PITCH_BENDER            255
 435 #define    CTRL_PITCH_BENDER_RANGE      254
 436 #define    CTRL_EXPRESSION              253     /* Obsolete */
 437 #define    CTRL_MAIN_VOLUME             252     /* Obsolete */
 438 #define SEQ_BALANCE             11
 439 #define SEQ_VOLMODE             12
 440 
 441 /*
 442  * Volume mode decides how volumes are used
 443  */
 444 
 445 #define VOL_METHOD_ADAGIO       1
 446 #define VOL_METHOD_LINEAR       2
 447 
 448 /*
 449  * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
 450  *       input events.
 451  */
 452 
 453 /*
 454  * Event codes 0xf0 to 0xfc are reserved for future extensions.
 455  */
 456 
 457 #define SEQ_FULLSIZE            0xfd    /* Long events */
 458 /*
 459  *      SEQ_FULLSIZE events are used for loading patches/samples to the
 460  *      synthesizer devices. These events are passed directly to the driver
 461  *      of the associated synthesizer device. There is no limit to the size
 462  *      of the extended events. These events are not queued but executed
 463  *      immediately when the write() is called (execution can take several
 464  *      seconds of time). 
 465  *
 466  *      When a SEQ_FULLSIZE message is written to the device, it must
 467  *      be written using exactly one write() call. Other events cannot
 468  *      be mixed to the same write.
 469  *      
 470  *      For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the 
 471  *      /dev/sequencer. Don't write other data together with the instrument structure
 472  *      Set the key field of the structure to FM_PATCH. The device field is used to
 473  *      route the patch to the corresponding device.
 474  *
 475  *      For Gravis UltraSound use struct patch_info. Initialize the key field
 476  *      to GUS_PATCH.
 477  */
 478 #define SEQ_PRIVATE             0xfe    /* Low level HW dependent events (8 bytes) */
 479 #define SEQ_EXTENDED            0xff    /* Extended events (8 bytes) OBSOLETE */
 480 
 481 /*
 482  * Record for FM patches
 483  */
 484 
 485 typedef unsigned char sbi_instr_data[32];
 486 
 487 struct sbi_instrument {
 488                 unsigned short  key;            /*      Initialize to FM_PATCH or OPL3_PATCH */
 489 #define FM_PATCH        0x01fd
 490 #define OPL3_PATCH      0x03fd
 491                 short           device;         /*      Synth# (0-4)    */
 492                 int             channel;        /*      Program# to be initialized      */
 493                 sbi_instr_data  operators;      /*      Register settings for operator cells (.SBI format)      */
 494         };
 495 
 496 struct synth_info {     /* Read only */
 497                 char    name[30];
 498                 int     device;         /* 0-N. INITIALIZE BEFORE CALLING */
 499                 int     synth_type;
 500 #define SYNTH_TYPE_FM                   0
 501 #define SYNTH_TYPE_SAMPLE               1
 502 #define SYNTH_TYPE_MIDI                 2       /* Midi interface */
 503 
 504                 int     synth_subtype;
 505 #define FM_TYPE_ADLIB                   0x00
 506 #define FM_TYPE_OPL3                    0x01
 507 
 508 #define SAMPLE_TYPE_GUS                 0x10
 509 
 510                 int     perc_mode;      /* No longer supported */
 511                 int     nr_voices;
 512                 int     nr_drums;       /* Obsolete field */
 513                 int     instr_bank_size;
 514                 unsigned long   capabilities;   
 515 #define SYNTH_CAP_PERCMODE              0x00000001 /* No longer used */
 516 #define SYNTH_CAP_OPL3                  0x00000002 /* Set if OPL3 supported */
 517 #define SYNTH_CAP_INPUT                 0x00000004 /* Input (MIDI) device */
 518                 int     dummies[19];    /* Reserve space */
 519         };
 520 
 521 struct sound_timer_info {
 522                 char name[30];
 523                 int caps;
 524         };
 525 
 526 #define MIDI_CAP_MPU401         1               /* MPU-401 intelligent mode */
 527 
 528 struct midi_info {
 529                 char            name[30];
 530                 int             device;         /* 0-N. INITIALIZE BEFORE CALLING */
 531                 unsigned long   capabilities;   /* To be defined later */
 532                 int             dev_type;
 533                 int             dummies[18];    /* Reserve space */
 534         };
 535 
 536 /********************************************
 537  * ioctl commands for the /dev/midi##
 538  */
 539 typedef struct {
 540                 unsigned char cmd;
 541                 char nr_args, nr_returns;
 542                 unsigned char data[30];
 543         } mpu_command_rec;
 544 
 545 #define SNDCTL_MIDI_PRETIME             _IOWR('m', 0, int)
 546 #define SNDCTL_MIDI_MPUMODE             _IOWR('m', 1, int)
 547 #define SNDCTL_MIDI_MPUCMD              _IOWR('m', 2, mpu_command_rec)
 548 
 549 /********************************************
 550  * IOCTL commands for /dev/dsp and /dev/audio
 551  */
 552 
 553 #define SNDCTL_DSP_RESET                _IO  ('P', 0)
 554 #define SNDCTL_DSP_SYNC                 _IO  ('P', 1)
 555 #define SNDCTL_DSP_SPEED                _IOWR('P', 2, int)
 556 #define SNDCTL_DSP_STEREO               _IOWR('P', 3, int)
 557 #define SNDCTL_DSP_GETBLKSIZE           _IOWR('P', 4, int)
 558 #define SNDCTL_DSP_SAMPLESIZE           SNDCTL_DSP_SETFMT
 559 #define SOUND_PCM_WRITE_CHANNELS        _IOWR('P', 6, int)
 560 #define SOUND_PCM_WRITE_FILTER          _IOWR('P', 7, int)
 561 #define SNDCTL_DSP_POST                 _IO  ('P', 8)
 562 #define SNDCTL_DSP_SUBDIVIDE            _IOWR('P', 9, int)
 563 #define SNDCTL_DSP_SETFRAGMENT          _IOWR('P',10, int)
 564 
 565 /*      Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */
 566 #define SNDCTL_DSP_GETFMTS              _IOR ('P',11, int) /* Returns a mask */
 567 #define SNDCTL_DSP_SETFMT               _IOWR('P',5, int) /* Selects ONE fmt*/
 568 #       define AFMT_QUERY               0x00000000      /* Return current fmt */
 569 #       define AFMT_MU_LAW              0x00000001
 570 #       define AFMT_A_LAW               0x00000002
 571 #       define AFMT_IMA_ADPCM           0x00000004
 572 #       define AFMT_U8                  0x00000008
 573 #       define AFMT_S16_LE              0x00000010      /* Little endian signed 16*/
 574 #       define AFMT_S16_BE              0x00000020      /* Big endian signed 16 */
 575 #       define AFMT_S8                  0x00000040
 576 #       define AFMT_U16_LE              0x00000080      /* Little endian U16 */
 577 #       define AFMT_U16_BE              0x00000100      /* Big endian U16 */
 578 #       define AFMT_MPEG                0x00000200      /* MPEG (2) audio */
 579 
 580 /*
 581  * Buffer status queries.
 582  */
 583 typedef struct audio_buf_info {
 584                         int fragments;  /* # of available fragments (partially usend ones not counted) */
 585                         int fragsize;   /* Size of a fragment in bytes */
 586 
 587                         int bytes;      /* Available space in bytes (includes partially used fragments) */
 588                         /* Note! 'bytes' could be more than fragments*fragsize */
 589                 } audio_buf_info;
 590 
 591 #define SNDCTL_DSP_GETOSPACE            _IOR ('P',12, audio_buf_info)
 592 #define SNDCTL_DSP_GETISPACE            _IOR ('P',13, audio_buf_info)
 593 #define SNDCTL_DSP_NONBLOCK             _IO  ('P',14)
 594 
 595 #define SOUND_PCM_READ_RATE             _IOR ('P', 2, int)
 596 #define SOUND_PCM_READ_CHANNELS         _IOR ('P', 6, int)
 597 #define SOUND_PCM_READ_BITS             _IOR ('P', 5, int)
 598 #define SOUND_PCM_READ_FILTER           _IOR ('P', 7, int)
 599 
 600 /* Some alias names */
 601 #define SOUND_PCM_WRITE_BITS            SNDCTL_DSP_SETFMT
 602 #define SOUND_PCM_WRITE_RATE            SNDCTL_DSP_SPEED
 603 #define SOUND_PCM_POST                  SNDCTL_DSP_POST
 604 #define SOUND_PCM_RESET                 SNDCTL_DSP_RESET
 605 #define SOUND_PCM_SYNC                  SNDCTL_DSP_SYNC
 606 #define SOUND_PCM_SUBDIVIDE             SNDCTL_DSP_SUBDIVIDE
 607 #define SOUND_PCM_SETFRAGMENT           SNDCTL_DSP_SETFRAGMENT
 608 #define SOUND_PCM_GETFMTS               SNDCTL_DSP_GETFMTS
 609 #define SOUND_PCM_SETFMT                SNDCTL_DSP_SETFMT
 610 #define SOUND_PCM_GETOSPACE             SNDCTL_DSP_GETOSPACE
 611 #define SOUND_PCM_GETISPACE             SNDCTL_DSP_GETISPACE
 612 #define SOUND_PCM_NONBLOCK              SNDCTL_DSP_NONBLOCK
 613 
 614 /*
 615  * ioctl calls to be used in communication with coprocessors and
 616  * DSP chips.
 617  */
 618 
 619 typedef struct copr_buffer {
 620                 int command;    /* Set to 0 if not used */
 621                 int flags;
 622 #define CPF_NONE                0x0000
 623 #define CPF_FIRST               0x0001  /* First block */
 624 #define CPF_LAST                0x0002  /* Last block */
 625                 int len;
 626                 int offs;       /* If required by the device (0 if not used) */
 627 
 628                 unsigned char data[4000]; /* NOTE! 4000 is not 4k */
 629         } copr_buffer;
 630 
 631 typedef struct copr_debug_buf {
 632                 int command;    /* Used internally. Set to 0 */
 633                 int parm1;
 634                 int parm2;
 635                 int flags;      
 636                 int len;        /* Length of data in bytes */
 637         } copr_debug_buf;
 638 
 639 typedef struct copr_msg {
 640                 int len;
 641                 unsigned char data[4000];
 642         } copr_msg;
 643 
 644 #define SNDCTL_COPR_RESET             _IO  ('C',  0)
 645 #define SNDCTL_COPR_LOAD              _IOWR('C',  1, copr_buffer)
 646 #define SNDCTL_COPR_RDATA             _IOWR('C',  2, copr_debug_buf)
 647 #define SNDCTL_COPR_RCODE             _IOWR('C',  3, copr_debug_buf)
 648 #define SNDCTL_COPR_WDATA             _IOW ('C',  4, copr_debug_buf)
 649 #define SNDCTL_COPR_WCODE             _IOW ('C',  5, copr_debug_buf)
 650 #define SNDCTL_COPR_RUN               _IOWR('C',  6, copr_debug_buf)
 651 #define SNDCTL_COPR_HALT              _IOWR('C',  7, copr_debug_buf)
 652 #define SNDCTL_COPR_SENDMSG           _IOW ('C',  8, copr_msg)
 653 #define SNDCTL_COPR_RCVMSG            _IOR ('C',  9, copr_msg)
 654 
 655 /*********************************************
 656  * IOCTL commands for /dev/mixer
 657  */
 658         
 659 /* 
 660  * Mixer devices
 661  *
 662  * There can be up to 20 different analog mixer channels. The
 663  * SOUND_MIXER_NRDEVICES gives the currently supported maximum. 
 664  * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
 665  * the devices supported by the particular mixer.
 666  */
 667 
 668 #define SOUND_MIXER_NRDEVICES   17
 669 #define SOUND_MIXER_VOLUME      0
 670 #define SOUND_MIXER_BASS        1
 671 #define SOUND_MIXER_TREBLE      2
 672 #define SOUND_MIXER_SYNTH       3
 673 #define SOUND_MIXER_PCM         4
 674 #define SOUND_MIXER_SPEAKER     5
 675 #define SOUND_MIXER_LINE        6
 676 #define SOUND_MIXER_MIC         7
 677 #define SOUND_MIXER_CD          8
 678 #define SOUND_MIXER_IMIX        9       /*  Recording monitor  */
 679 #define SOUND_MIXER_ALTPCM      10
 680 #define SOUND_MIXER_RECLEV      11      /* Recording level */
 681 #define SOUND_MIXER_IGAIN       12      /* Input gain */
 682 #define SOUND_MIXER_OGAIN       13      /* Output gain */
 683 /* 
 684  * The AD1848 codec and compatibles have three line level inputs
 685  * (line, aux1 and aux2). Since each card manufacturer have assigned
 686  * different meanings to these inputs, it's inpractical to assign
 687  * specific meanings (line, cd, synth etc.) to them.
 688  */
 689 #define SOUND_MIXER_LINE1       14      /* Input source 1  (aux1) */
 690 #define SOUND_MIXER_LINE2       15      /* Input source 2  (aux2) */
 691 #define SOUND_MIXER_LINE3       16      /* Input source 3  (line) */
 692 
 693 /* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
 694 /* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
 695 #define SOUND_ONOFF_MIN         28
 696 #define SOUND_ONOFF_MAX         30
 697 #define SOUND_MIXER_MUTE        28      /* 0 or 1 */
 698 #define SOUND_MIXER_ENHANCE     29      /* Enhanced stereo (0, 40, 60 or 80) */
 699 #define SOUND_MIXER_LOUD        30      /* 0 or 1 */
 700 
 701 /* Note!        Number 31 cannot be used since the sign bit is reserved */
 702 
 703 #define SOUND_DEVICE_LABELS     {"Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
 704                                  "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
 705                                  "Line1", "Line2", "Line3"}
 706 
 707 #define SOUND_DEVICE_NAMES      {"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
 708                                  "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
 709                                  "line1", "line2", "line3"}
 710 
 711 /*      Device bitmask identifiers      */
 712 
 713 #define SOUND_MIXER_RECSRC      0xff    /* Arg contains a bit for each recording source */
 714 #define SOUND_MIXER_DEVMASK     0xfe    /* Arg contains a bit for each supported device */
 715 #define SOUND_MIXER_RECMASK     0xfd    /* Arg contains a bit for each supported recording source */
 716 #define SOUND_MIXER_CAPS        0xfc
 717         #define SOUND_CAP_EXCL_INPUT    0x00000001      /* Only one recording source at a time */
 718 #define SOUND_MIXER_STEREODEVS  0xfb    /* Mixer channels supporting stereo */
 719 
 720 /*      Device mask bits        */
 721 
 722 #define SOUND_MASK_VOLUME       (1 << SOUND_MIXER_VOLUME)
 723 #define SOUND_MASK_BASS         (1 << SOUND_MIXER_BASS)
 724 #define SOUND_MASK_TREBLE       (1 << SOUND_MIXER_TREBLE)
 725 #define SOUND_MASK_SYNTH        (1 << SOUND_MIXER_SYNTH)
 726 #define SOUND_MASK_PCM          (1 << SOUND_MIXER_PCM)
 727 #define SOUND_MASK_SPEAKER      (1 << SOUND_MIXER_SPEAKER)
 728 #define SOUND_MASK_LINE         (1 << SOUND_MIXER_LINE)
 729 #define SOUND_MASK_MIC          (1 << SOUND_MIXER_MIC)
 730 #define SOUND_MASK_CD           (1 << SOUND_MIXER_CD)
 731 #define SOUND_MASK_IMIX         (1 << SOUND_MIXER_IMIX)
 732 #define SOUND_MASK_ALTPCM       (1 << SOUND_MIXER_ALTPCM)
 733 #define SOUND_MASK_RECLEV       (1 << SOUND_MIXER_RECLEV)
 734 #define SOUND_MASK_IGAIN        (1 << SOUND_MIXER_IGAIN)
 735 #define SOUND_MASK_OGAIN        (1 << SOUND_MIXER_OGAIN)
 736 #define SOUND_MASK_LINE1        (1 << SOUND_MIXER_LINE1)
 737 #define SOUND_MASK_LINE2        (1 << SOUND_MIXER_LINE2)
 738 #define SOUND_MASK_LINE3        (1 << SOUND_MIXER_LINE3)
 739 
 740 #define SOUND_MASK_MUTE         (1 << SOUND_MIXER_MUTE)
 741 #define SOUND_MASK_ENHANCE      (1 << SOUND_MIXER_ENHANCE)
 742 #define SOUND_MASK_LOUD         (1 << SOUND_MIXER_LOUD)
 743 
 744 #define MIXER_READ(dev)         _IOR('M', dev, int)
 745 #define SOUND_MIXER_READ_VOLUME         MIXER_READ(SOUND_MIXER_VOLUME)
 746 #define SOUND_MIXER_READ_BASS           MIXER_READ(SOUND_MIXER_BASS)
 747 #define SOUND_MIXER_READ_TREBLE         MIXER_READ(SOUND_MIXER_TREBLE)
 748 #define SOUND_MIXER_READ_SYNTH          MIXER_READ(SOUND_MIXER_SYNTH)
 749 #define SOUND_MIXER_READ_PCM            MIXER_READ(SOUND_MIXER_PCM)
 750 #define SOUND_MIXER_READ_SPEAKER        MIXER_READ(SOUND_MIXER_SPEAKER)
 751 #define SOUND_MIXER_READ_LINE           MIXER_READ(SOUND_MIXER_LINE)
 752 #define SOUND_MIXER_READ_MIC            MIXER_READ(SOUND_MIXER_MIC)
 753 #define SOUND_MIXER_READ_CD             MIXER_READ(SOUND_MIXER_CD)
 754 #define SOUND_MIXER_READ_IMIX           MIXER_READ(SOUND_MIXER_IMIX)
 755 #define SOUND_MIXER_READ_ALTPCM         MIXER_READ(SOUND_MIXER_ALTPCM)
 756 #define SOUND_MIXER_READ_RECLEV         MIXER_READ(SOUND_MIXER_RECLEV)
 757 #define SOUND_MIXER_READ_IGAIN          MIXER_READ(SOUND_MIXER_IGAIN)
 758 #define SOUND_MIXER_READ_OGAIN          MIXER_READ(SOUND_MIXER_OGAIN)
 759 #define SOUND_MIXER_READ_LINE1          MIXER_READ(SOUND_MIXER_LINE1)
 760 #define SOUND_MIXER_READ_LINE2          MIXER_READ(SOUND_MIXER_LINE2)
 761 #define SOUND_MIXER_READ_LINE3          MIXER_READ(SOUND_MIXER_LINE3)
 762 #define SOUND_MIXER_READ_MUTE           MIXER_READ(SOUND_MIXER_MUTE)
 763 #define SOUND_MIXER_READ_ENHANCE        MIXER_READ(SOUND_MIXER_ENHANCE)
 764 #define SOUND_MIXER_READ_LOUD           MIXER_READ(SOUND_MIXER_LOUD)
 765 
 766 #define SOUND_MIXER_READ_RECSRC         MIXER_READ(SOUND_MIXER_RECSRC)
 767 #define SOUND_MIXER_READ_DEVMASK        MIXER_READ(SOUND_MIXER_DEVMASK)
 768 #define SOUND_MIXER_READ_RECMASK        MIXER_READ(SOUND_MIXER_RECMASK)
 769 #define SOUND_MIXER_READ_STEREODEVS     MIXER_READ(SOUND_MIXER_STEREODEVS)
 770 #define SOUND_MIXER_READ_CAPS           MIXER_READ(SOUND_MIXER_CAPS)
 771 
 772 #define MIXER_WRITE(dev)                _IOWR('M', dev, int)
 773 #define SOUND_MIXER_WRITE_VOLUME        MIXER_WRITE(SOUND_MIXER_VOLUME)
 774 #define SOUND_MIXER_WRITE_BASS          MIXER_WRITE(SOUND_MIXER_BASS)
 775 #define SOUND_MIXER_WRITE_TREBLE        MIXER_WRITE(SOUND_MIXER_TREBLE)
 776 #define SOUND_MIXER_WRITE_SYNTH         MIXER_WRITE(SOUND_MIXER_SYNTH)
 777 #define SOUND_MIXER_WRITE_PCM           MIXER_WRITE(SOUND_MIXER_PCM)
 778 #define SOUND_MIXER_WRITE_SPEAKER       MIXER_WRITE(SOUND_MIXER_SPEAKER)
 779 #define SOUND_MIXER_WRITE_LINE          MIXER_WRITE(SOUND_MIXER_LINE)
 780 #define SOUND_MIXER_WRITE_MIC           MIXER_WRITE(SOUND_MIXER_MIC)
 781 #define SOUND_MIXER_WRITE_CD            MIXER_WRITE(SOUND_MIXER_CD)
 782 #define SOUND_MIXER_WRITE_IMIX          MIXER_WRITE(SOUND_MIXER_IMIX)
 783 #define SOUND_MIXER_WRITE_ALTPCM        MIXER_WRITE(SOUND_MIXER_ALTPCM)
 784 #define SOUND_MIXER_WRITE_RECLEV        MIXER_WRITE(SOUND_MIXER_RECLEV)
 785 #define SOUND_MIXER_WRITE_IGAIN         MIXER_WRITE(SOUND_MIXER_IGAIN)
 786 #define SOUND_MIXER_WRITE_OGAIN         MIXER_WRITE(SOUND_MIXER_OGAIN)
 787 #define SOUND_MIXER_WRITE_LINE1         MIXER_WRITE(SOUND_MIXER_LINE1)
 788 #define SOUND_MIXER_WRITE_LINE2         MIXER_WRITE(SOUND_MIXER_LINE2)
 789 #define SOUND_MIXER_WRITE_LINE3         MIXER_WRITE(SOUND_MIXER_LINE3)
 790 #define SOUND_MIXER_WRITE_MUTE          MIXER_WRITE(SOUND_MIXER_MUTE)
 791 #define SOUND_MIXER_WRITE_ENHANCE       MIXER_WRITE(SOUND_MIXER_ENHANCE)
 792 #define SOUND_MIXER_WRITE_LOUD          MIXER_WRITE(SOUND_MIXER_LOUD)
 793 
 794 #define SOUND_MIXER_WRITE_RECSRC        MIXER_WRITE(SOUND_MIXER_RECSRC)
 795 
 796 /*
 797  * Level 2 event types for /dev/sequencer
 798  */
 799 
 800 /*
 801  * The 4 most significant bits of byte 0 specify the class of
 802  * the event: 
 803  *
 804  *      0x8X = system level events,
 805  *      0x9X = device/port specific events, event[1] = device/port,
 806  *              The last 4 bits give the subtype:
 807  *                      0x02    = Channel event (event[3] = chn).
 808  *                      0x01    = note event (event[4] = note).
 809  *                      (0x01 is not used alone but always with bit 0x02).
 810  *             event[2] = MIDI message code (0x80=note off etc.)
 811  *
 812  */
 813 
 814 #define EV_SEQ_LOCAL            0x80
 815 #define EV_TIMING               0x81
 816 #define EV_CHN_COMMON           0x92
 817 #define EV_CHN_VOICE            0x93
 818 /*
 819  * Event types 200 to 220 are reserved for application use.
 820  * These numbers will not be used by the driver.
 821  */
 822 
 823 /*
 824  * Events for event type EV_CHN_VOICE
 825  */
 826 
 827 #define MIDI_NOTEOFF            0x80
 828 #define MIDI_NOTEON             0x90
 829 #define MIDI_KEY_PRESSURE       0xA0
 830 
 831 /*
 832  * Events for event type EV_CHN_COMMON
 833  */
 834 
 835 #define MIDI_CTL_CHANGE         0xB0
 836 #define MIDI_PGM_CHANGE         0xC0
 837 #define MIDI_CHN_PRESSURE       0xD0
 838 #define MIDI_PITCH_BEND         0xE0
 839 
 840 #define MIDI_SYSTEM_PREFIX      0xF0
 841 
 842 /*
 843  * Timer event types
 844  */
 845 #define TMR_WAIT_REL            1       /* Time relative to the prev time */
 846 #define TMR_WAIT_ABS            2       /* Absolute time since TMR_START */
 847 #define TMR_STOP                3
 848 #define TMR_START               4
 849 #define TMR_CONTINUE            5
 850 #define TMR_TEMPO               6
 851 #define TMR_ECHO                8
 852 #define TMR_CLOCK               9       /* MIDI clock */
 853 #define TMR_SPP                 10      /* Song position pointer */
 854 #define TMR_TIMESIG             11      /* Time signature */
 855 
 856 #if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS) 
 857 /*
 858  *      Some convenience macros to simplify programming of the
 859  *      /dev/sequencer interface
 860  *
 861  *      These macros define the API which should be used when possible.
 862  */
 863 
 864 #ifndef USE_SIMPLE_MACROS
 865 void seqbuf_dump(void); /* This function must be provided by programs */
 866 
 867 /* Sample seqbuf_dump() implementation:
 868  *
 869  *      SEQ_DEFINEBUF (2048);   -- Defines a buffer for 2048 bytes
 870  *
 871  *      int seqfd;              -- The file descriptor for /dev/sequencer.
 872  *
 873  *      void
 874  *      seqbuf_dump ()
 875  *      {
 876  *        if (_seqbufptr)
 877  *          if (write (seqfd, _seqbuf, _seqbufptr) == -1)
 878  *            {
 879  *              perror ("write /dev/sequencer");
 880  *              exit (-1);
 881  *            }
 882  *        _seqbufptr = 0;
 883  *      }
 884  */
 885 
 886 #define SEQ_DEFINEBUF(len)              unsigned char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
 887 #define SEQ_USE_EXTBUF()                extern unsigned char _seqbuf[]; extern int _seqbuflen;extern int _seqbufptr
 888 #define SEQ_DECLAREBUF()                SEQ_USE_EXTBUF()
 889 #define SEQ_PM_DEFINES                  struct patmgr_info _pm_info
 890 #define _SEQ_NEEDBUF(len)               if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump()
 891 #define _SEQ_ADVBUF(len)                _seqbufptr += len
 892 #define SEQ_DUMPBUF                     seqbuf_dump
 893 #else
 894 /*
 895  * This variation of the sequencer macros is used just to format one event
 896  * using fixed buffer.
 897  * 
 898  * The program using the macro library must define the following macros before
 899  * using this library.
 900  *
 901  * #define _seqbuf               name of the buffer (unsigned char[]) 
 902  * #define _SEQ_ADVBUF(len)      If the applic needs to know the exact
 903  *                               size of the event, this macro can be used.
 904  *                               Otherwise this must be defined as empty.
 905  * #define _seqbufptr            Define the name of index variable or 0 if
 906  *                               not required. 
 907  */
 908 #define _SEQ_NEEDBUF(len)       /* empty */
 909 #endif
 910 
 911 #define PM_LOAD_PATCH(dev, bank, pgm)   (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
 912                                         _pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
 913                                         _pm_info.parm1 = bank, _pm_info.parm2 = 1, \
 914                                         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
 915 #define PM_LOAD_PATCHES(dev, bank, pgm) (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
 916                                         _pm_info.device=dev, memcpy(_pm_info.data.data8, pgm, 128), \
 917                                         _pm_info.parm1 = bank, _pm_info.parm2 = 128, \
 918                                         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
 919 
 920 #define SEQ_VOLUME_MODE(dev, mode)      {_SEQ_NEEDBUF(8);\
 921                                         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
 922                                         _seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
 923                                         _seqbuf[_seqbufptr+2] = (dev);\
 924                                         _seqbuf[_seqbufptr+3] = (mode);\
 925                                         _seqbuf[_seqbufptr+4] = 0;\
 926                                         _seqbuf[_seqbufptr+5] = 0;\
 927                                         _seqbuf[_seqbufptr+6] = 0;\
 928                                         _seqbuf[_seqbufptr+7] = 0;\
 929                                         _SEQ_ADVBUF(8);}
 930 
 931 /*
 932  * Midi voice messages
 933  */
 934 
 935 #define _CHN_VOICE(dev, event, chn, note, parm) \
 936                                         {_SEQ_NEEDBUF(8);\
 937                                         _seqbuf[_seqbufptr] = EV_CHN_VOICE;\
 938                                         _seqbuf[_seqbufptr+1] = (dev);\
 939                                         _seqbuf[_seqbufptr+2] = (event);\
 940                                         _seqbuf[_seqbufptr+3] = (chn);\
 941                                         _seqbuf[_seqbufptr+4] = (note);\
 942                                         _seqbuf[_seqbufptr+5] = (parm);\
 943                                         _seqbuf[_seqbufptr+6] = (0);\
 944                                         _seqbuf[_seqbufptr+7] = 0;\
 945                                         _SEQ_ADVBUF(8);}
 946 
 947 #define SEQ_START_NOTE(dev, chn, note, vol) \
 948                 _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
 949 
 950 #define SEQ_STOP_NOTE(dev, chn, note, vol) \
 951                 _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
 952 
 953 #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
 954                 _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
 955 
 956 /*
 957  * Midi channel messages
 958  */
 959 
 960 #define _CHN_COMMON(dev, event, chn, p1, p2, w14) \
 961                                         {_SEQ_NEEDBUF(8);\
 962                                         _seqbuf[_seqbufptr] = EV_CHN_COMMON;\
 963                                         _seqbuf[_seqbufptr+1] = (dev);\
 964                                         _seqbuf[_seqbufptr+2] = (event);\
 965                                         _seqbuf[_seqbufptr+3] = (chn);\
 966                                         _seqbuf[_seqbufptr+4] = (p1);\
 967                                         _seqbuf[_seqbufptr+5] = (p2);\
 968                                         *(short *)&_seqbuf[_seqbufptr+6] = (w14);\
 969                                         _SEQ_ADVBUF(8);}
 970 
 971 #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
 972                 _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
 973 
 974 #define SEQ_SET_PATCH(dev, chn, patch) \
 975                 _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
 976 
 977 #define SEQ_CONTROL(dev, chn, controller, value) \
 978                 _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
 979 
 980 #define SEQ_BENDER(dev, chn, value) \
 981                 _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
 982 
 983 
 984 #define SEQ_V2_X_CONTROL(dev, voice, controller, value) {_SEQ_NEEDBUF(8);\
 985                                         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
 986                                         _seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
 987                                         _seqbuf[_seqbufptr+2] = (dev);\
 988                                         _seqbuf[_seqbufptr+3] = (voice);\
 989                                         _seqbuf[_seqbufptr+4] = (controller);\
 990                                         *(short *)&_seqbuf[_seqbufptr+5] = (value);\
 991                                         _seqbuf[_seqbufptr+7] = 0;\
 992                                         _SEQ_ADVBUF(8);}
 993 /*
 994  * The following 5 macros are incorrectly implemented and obsolete.
 995  * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
 996  */
 997 #define SEQ_PITCHBEND(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
 998 #define SEQ_BENDER_RANGE(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
 999 #define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
1000 #define SEQ_MAIN_VOLUME(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
1001 #define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
1002 #if 0
1003 #define SEQ_PANNING(dev, voice, pos)    {_SEQ_NEEDBUF(8);\
1004                                         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1005                                         _seqbuf[_seqbufptr+1] = SEQ_BALANCE;\
1006                                         _seqbuf[_seqbufptr+2] = (dev);\
1007                                         _seqbuf[_seqbufptr+3] = (voice);\
1008                                         (char)_seqbuf[_seqbufptr+4] = (pos);\
1009                                         _seqbuf[_seqbufptr+5] = 0;\
1010                                         _seqbuf[_seqbufptr+6] = 0;\
1011                                         _seqbuf[_seqbufptr+7] = 1;\
1012                                         _SEQ_ADVBUF(8);}
1013 #endif
1014 
1015 /*
1016  * Timing and syncronization macros
1017  */
1018 
1019 #define _TIMER_EVENT(ev, parm)          {_SEQ_NEEDBUF(8);\
1020                                         _seqbuf[_seqbufptr+0] = EV_TIMING; \
1021                                         _seqbuf[_seqbufptr+1] = (ev); \
1022                                         _seqbuf[_seqbufptr+2] = 0;\
1023                                         _seqbuf[_seqbufptr+3] = 0;\
1024                                         *(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
1025                                         _SEQ_ADVBUF(8);}
1026 
1027 #define SEQ_START_TIMER()               _TIMER_EVENT(TMR_START, 0)
1028 #define SEQ_STOP_TIMER()                _TIMER_EVENT(TMR_STOP, 0)
1029 #define SEQ_CONTINUE_TIMER()            _TIMER_EVENT(TMR_CONTINUE, 0)
1030 #define SEQ_WAIT_TIME(ticks)            _TIMER_EVENT(TMR_WAIT_ABS, ticks)
1031 #define SEQ_DELTA_TIME(ticks)           _TIMER_EVENT(TMR_WAIT_REL, ticks)
1032 #define SEQ_ECHO_BACK(key)              _TIMER_EVENT(TMR_ECHO, key)
1033 #define SEQ_SET_TEMPO(value)            _TIMER_EVENT(TMR_TEMPO, value)
1034 #define SEQ_SONGPOS(pos)                _TIMER_EVENT(TMR_SPP, pos)
1035 #define SEQ_TIME_SIGNATURE(sig)         _TIMER_EVENT(TMR_TIMESIG, sig)
1036 
1037 /*
1038  * Events for the level 1 interface only 
1039  */
1040 
1041 #define SEQ_MIDIOUT(device, byte)       {_SEQ_NEEDBUF(4);\
1042                                         _seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
1043                                         _seqbuf[_seqbufptr+1] = (byte);\
1044                                         _seqbuf[_seqbufptr+2] = (device);\
1045                                         _seqbuf[_seqbufptr+3] = 0;\
1046                                         _SEQ_ADVBUF(4);}
1047 
1048 /*
1049  * Patch loading.
1050  */
1051 #define SEQ_WRPATCH(patchx, len)                {if (_seqbufptr) seqbuf_dump();\
1052                                         if (write(seqfd, (char*)(patchx), len)==-1) \
1053                                            perror("Write patch: /dev/sequencer");}
1054 #define SEQ_WRPATCH2(patchx, len)       (seqbuf_dump(), write(seqfd, (char*)(patchx), len))
1055 
1056 #endif
1057 long soundcard_init(long mem_start);
1058 #endif

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