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

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