source/modules/rtaudio/include/soundcard.h

   1 /*
   2  * soundcard.h
   3  */
   4
   5 /*-
   6  * Copyright by Hannu Savolainen 1993 / 4Front Technologies 1993-2006
   7  * Modified for the new FreeBSD sound driver by Luigi Rizzo, 1997
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above
  15  *    copyright notice, this list of conditions and the following
  16  *    disclaimer in the documentation and/or other materials provided
  17  *    with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR
  23  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  26  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  27  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  29  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/sys/sys/soundcard.h,v 1.48 2006/11/26 11:55:48 netchild Exp $
  33  */
  34
  35 /*
  36  * Unless coordinating changes with 4Front Technologies, do NOT make any
  37  * modifications to ioctl commands, types, etc. that would break
  38  * compatibility with the OSS API.
  39  */
  40
  41 #ifndef _SYS_SOUNDCARD_H_
  42 #define _SYS_SOUNDCARD_H_
  43  /*
  44   * If you make modifications to this file, please contact me before
  45   * distributing the modified version. There is already enough
  46   * diversity in the world.
  47   *
  48   * Regards,
  49   * Hannu Savolainen
  50   * hannu@voxware.pp.fi
  51   *
  52   **********************************************************************
  53   * PS. The Hacker's Guide to VoxWare available from
  54   *     nic.funet.fi:pub/Linux/ALPHA/sound. The file is
  55   *     snd-sdk-doc-0.1.ps.gz (gzipped postscript). It contains
  56   *     some useful information about programming with VoxWare.
  57   *     (NOTE! The pub/Linux/ALPHA/ directories are hidden. You have
  58   *     to cd inside them before the files are accessible.)
  59   **********************************************************************
  60   */
  61
  62 /*
  63  * SOUND_VERSION is only used by the voxware driver. Hopefully apps
  64  * should not depend on it, but rather look at the capabilities
  65  * of the driver in the kernel!
  66  */
  67 #define SOUND_VERSION  301
  68 #define VOXWARE         /* does this have any use ? */
  69
  70 /*
  71  * Supported card ID numbers (Should be somewhere else? We keep
  72  * them here just for compativility with the old driver, but these
  73  * constants are of little or no use).
  74  */
  75
  76 #define SNDCARD_ADLIB          1
  77 #define SNDCARD_SB             2
  78 #define SNDCARD_PAS            3
  79 #define SNDCARD_GUS            4
  80 #define SNDCARD_MPU401         5
  81 #define SNDCARD_SB16           6
  82 #define SNDCARD_SB16MIDI       7
  83 #define SNDCARD_UART6850       8
  84 #define SNDCARD_GUS16          9
  85 #define SNDCARD_MSS            10
  86 #define SNDCARD_PSS            11
  87 #define SNDCARD_SSCAPE         12
  88 #define SNDCARD_PSS_MPU        13
  89 #define SNDCARD_PSS_MSS        14
  90 #define SNDCARD_SSCAPE_MSS     15
  91 #define SNDCARD_TRXPRO         16
  92 #define SNDCARD_TRXPRO_SB      17
  93 #define SNDCARD_TRXPRO_MPU     18
  94 #define SNDCARD_MAD16          19
  95 #define SNDCARD_MAD16_MPU      20
  96 #define SNDCARD_CS4232         21
  97 #define SNDCARD_CS4232_MPU     22
  98 #define SNDCARD_MAUI           23
  99 #define SNDCARD_PSEUDO_MSS     24
 100 #define SNDCARD_AWE32          25
 101 #define SNDCARD_NSS            26
 102 #define SNDCARD_UART16550      27
 103 #define SNDCARD_OPL            28
 104
 105 #include <sys/types.h>
 106 #include <machine/endian.h>
 107 #ifndef _IOWR
 108 #include <sys/ioccom.h>
 109 #endif  /* !_IOWR */
 110
 111 /*
 112  * The first part of this file contains the new FreeBSD sound ioctl
 113  * interface. Tries to minimize the number of different ioctls, and
 114  * to be reasonably general.
 115  *
 116  * 970821: some of the new calls have not been implemented yet.
 117  */
 118
 119 /*
 120  * the following three calls extend the generic file descriptor
 121  * interface. AIONWRITE is the dual of FIONREAD, i.e. returns the max
 122  * number of bytes for a write operation to be non-blocking.
 123  *
 124  * AIOGSIZE/AIOSSIZE are used to change the behaviour of the device,
 125  * from a character device (default) to a block device. In block mode,
 126  * (not to be confused with blocking mode) the main difference for the
 127  * application is that select() will return only when a complete
 128  * block can be read/written to the device, whereas in character mode
 129  * select will return true when one byte can be exchanged. For audio
 130  * devices, character mode makes select almost useless since one byte
 131  * will always be ready by the next sample time (which is often only a
 132  * handful of microseconds away).
 133  * Use a size of 0 or 1 to return to character mode.
 134  */
 135 #define AIONWRITE   _IOR('A', 10, int)   /* get # bytes to write */
 136 struct snd_size {
 137     int play_size;
 138     int rec_size;
 139 };
 140 #define AIOGSIZE    _IOR('A', 11, struct snd_size)/* read current blocksize */
 141 #define AIOSSIZE    _IOWR('A', 11, struct snd_size)  /* sets blocksize */
 142
 143 /*
 144  * The following constants define supported audio formats. The
 145  * encoding follows voxware conventions, i.e. 1 bit for each supported
 146  * format. We extend it by using bit 31 (RO) to indicate full-duplex
 147  * capability, and bit 29 (RO) to indicate that the card supports/
 148  * needs different formats on capture & playback channels.
 149  * Bit 29 (RW) is used to indicate/ask stereo.
 150  *
 151  * The number of bits required to store the sample is:
 152  *  o  4 bits for the IDA ADPCM format,
 153  *  o  8 bits for 8-bit formats, mu-law and A-law,
 154  *  o  16 bits for the 16-bit formats, and
 155  *  o  32 bits for the 24/32-bit formats.
 156  *  o  undefined for the MPEG audio format.
 157  */
 158
 159 #define AFMT_QUERY      0x00000000      /* Return current format */
 160 #define AFMT_MU_LAW     0x00000001      /* Logarithmic mu-law */
 161 #define AFMT_A_LAW      0x00000002      /* Logarithmic A-law */
 162 #define AFMT_IMA_ADPCM  0x00000004      /* A 4:1 compressed format where 16-bit
 163                                          * squence represented using the
 164                                          * the average 4 bits per sample */
 165 #define AFMT_U8         0x00000008      /* Unsigned 8-bit */
 166 #define AFMT_S16_LE     0x00000010      /* Little endian signed 16-bit */
 167 #define AFMT_S16_BE     0x00000020      /* Big endian signed 16-bit */
 168 #define AFMT_S8         0x00000040      /* Signed 8-bit */
 169 #define AFMT_U16_LE     0x00000080      /* Little endian unsigned 16-bit */
 170 #define AFMT_U16_BE     0x00000100      /* Big endian unsigned 16-bit */
 171 #define AFMT_MPEG       0x00000200      /* MPEG MP2/MP3 audio */
 172 #define AFMT_AC3        0x00000400      /* Dolby Digital AC3 */
 173
 174 #if _BYTE_ORDER == _LITTLE_ENDIAN
 175 #define AFMT_S16_NE     AFMT_S16_LE     /* native endian signed 16 */
 176 #else
 177 #define AFMT_S16_NE     AFMT_S16_BE
 178 #endif
 179
 180 /*
 181  * 32-bit formats below used for 24-bit audio data where the data is stored
 182  * in the 24 most significant bits and the least significant bits are not used
 183  * (should be set to 0).
 184  */
 185 #define AFMT_S32_LE     0x00001000      /* Little endian signed 32-bit */
 186 #define AFMT_S32_BE     0x00002000      /* Big endian signed 32-bit */
 187 #define AFMT_U32_LE     0x00004000      /* Little endian unsigned 32-bit */
 188 #define AFMT_U32_BE     0x00008000      /* Big endian unsigned 32-bit */
 189 #define AFMT_S24_LE     0x00010000      /* Little endian signed 24-bit */
 190 #define AFMT_S24_BE     0x00020000      /* Big endian signed 24-bit */
 191 #define AFMT_U24_LE     0x00040000      /* Little endian unsigned 24-bit */
 192 #define AFMT_U24_BE     0x00080000      /* Big endian unsigned 24-bit */
 193
 194 #define AFMT_STEREO     0x10000000      /* can do/want stereo   */
 195
 196 /*
 197  * the following are really capabilities
 198  */
 199 #define AFMT_WEIRD      0x20000000      /* weird hardware...    */
 200     /*
 201      * AFMT_WEIRD reports that the hardware might need to operate
 202      * with different formats in the playback and capture
 203      * channels when operating in full duplex.
 204      * As an example, SoundBlaster16 cards only support U8 in one
 205      * direction and S16 in the other one, and applications should
 206      * be aware of this limitation.
 207      */
 208 #define AFMT_FULLDUPLEX 0x80000000      /* can do full duplex   */
 209
 210 /*
 211  * The following structure is used to get/set format and sampling rate.
 212  * While it would be better to have things such as stereo, bits per
 213  * sample, endiannes, etc split in different variables, it turns out
 214  * that formats are not that many, and not all combinations are possible.
 215  * So we followed the Voxware approach of associating one bit to each
 216  * format.
 217  */
 218
 219 typedef struct _snd_chan_param {
 220     u_long      play_rate;      /* sampling rate                        */
 221     u_long      rec_rate;       /* sampling rate                        */
 222     u_long      play_format;    /* everything describing the format     */
 223     u_long      rec_format;     /* everything describing the format     */
 224 } snd_chan_param;
 225 #define AIOGFMT    _IOR('f', 12, snd_chan_param)   /* get format */
 226 #define AIOSFMT    _IOWR('f', 12, snd_chan_param)  /* sets format */
 227
 228 /*
 229  * The following structure is used to get/set the mixer setting.
 230  * Up to 32 mixers are supported, each one with up to 32 channels.
 231  */
 232 typedef struct _snd_mix_param {
 233     u_char      subdev; /* which output                         */
 234     u_char      line;   /* which input                          */
 235     u_char      left,right; /* volumes, 0..255, 0 = mute        */
 236 } snd_mix_param ;
 237
 238 /* XXX AIOGMIX, AIOSMIX not implemented yet */
 239 #define AIOGMIX _IOWR('A', 13, snd_mix_param)   /* return mixer status */
 240 #define AIOSMIX _IOWR('A', 14, snd_mix_param)   /* sets mixer status   */
 241
 242 /*
 243  * channel specifiers used in AIOSTOP and AIOSYNC
 244  */
 245 #define AIOSYNC_PLAY    0x1     /* play chan */
 246 #define AIOSYNC_CAPTURE 0x2     /* capture chan */
 247 /* AIOSTOP stop & flush a channel, returns the residual count */
 248 #define AIOSTOP _IOWR ('A', 15, int)
 249
 250 /* alternate method used to notify the sync condition */
 251 #define AIOSYNC_SIGNAL  0x100
 252 #define AIOSYNC_SELECT  0x200
 253
 254 /* what the 'pos' field refers to */
 255 #define AIOSYNC_READY   0x400
 256 #define AIOSYNC_FREE    0x800
 257
 258 typedef struct _snd_sync_parm {
 259     long chan ; /* play or capture channel, plus modifier */
 260     long pos;
 261 } snd_sync_parm;
 262 #define AIOSYNC _IOWR ('A', 15, snd_sync_parm)  /* misc. synchronization */
 263
 264 /*
 265  * The following is used to return device capabilities. If the structure
 266  * passed to the ioctl is zeroed, default values are returned for rate
 267  * and formats, a bitmap of available mixers is returned, and values
 268  * (inputs, different levels) for the first one are returned.
 269  *
 270  * If  formats, mixers, inputs are instantiated, then detailed info
 271  * are returned depending on the call.
 272  */
 273 typedef struct _snd_capabilities {
 274     u_long      rate_min, rate_max;     /* min-max sampling rate */
 275     u_long      formats;
 276     u_long      bufsize; /* DMA buffer size */
 277     u_long      mixers; /* bitmap of available mixers */
 278     u_long      inputs; /* bitmap of available inputs (per mixer) */
 279     u_short     left, right;    /* how many levels are supported */
 280 } snd_capabilities;
 281 #define AIOGCAP _IOWR('A', 15, snd_capabilities)        /* get capabilities */
 282
 283 /*
 284  * here is the old (Voxware) ioctl interface
 285  */
 286
 287 /*
 288  * IOCTL Commands for /dev/sequencer
 289  */
 290
 291 #define SNDCTL_SEQ_RESET        _IO  ('Q', 0)
 292 #define SNDCTL_SEQ_SYNC         _IO  ('Q', 1)
 293 #define SNDCTL_SYNTH_INFO       _IOWR('Q', 2, struct synth_info)
 294 #define SNDCTL_SEQ_CTRLRATE     _IOWR('Q', 3, int) /* Set/get timer res.(hz) */
 295 #define SNDCTL_SEQ_GETOUTCOUNT  _IOR ('Q', 4, int)
 296 #define SNDCTL_SEQ_GETINCOUNT   _IOR ('Q', 5, int)
 297 #define SNDCTL_SEQ_PERCMODE     _IOW ('Q', 6, int)
 298 #define SNDCTL_FM_LOAD_INSTR    _IOW ('Q', 7, struct sbi_instrument)    /* Valid for FM only */
 299 #define SNDCTL_SEQ_TESTMIDI     _IOW ('Q', 8, int)
 300 #define SNDCTL_SEQ_RESETSAMPLES _IOW ('Q', 9, int)
 301 #define SNDCTL_SEQ_NRSYNTHS     _IOR ('Q',10, int)
 302 #define SNDCTL_SEQ_NRMIDIS      _IOR ('Q',11, int)
 303 #define SNDCTL_MIDI_INFO        _IOWR('Q',12, struct midi_info)
 304 #define SNDCTL_SEQ_THRESHOLD    _IOW ('Q',13, int)
 305 #define SNDCTL_SEQ_TRESHOLD     SNDCTL_SEQ_THRESHOLD    /* there was once a typo */
 306 #define SNDCTL_SYNTH_MEMAVL     _IOWR('Q',14, int) /* in=dev#, out=memsize */
 307 #define SNDCTL_FM_4OP_ENABLE    _IOW ('Q',15, int) /* in=dev# */
 308 #define SNDCTL_PMGR_ACCESS      _IOWR('Q',16, struct patmgr_info)
 309 #define SNDCTL_SEQ_PANIC        _IO  ('Q',17)
 310 #define SNDCTL_SEQ_OUTOFBAND    _IOW ('Q',18, struct seq_event_rec)
 311 #define SNDCTL_SEQ_GETTIME      _IOR ('Q',19, int)
 312
 313 struct seq_event_rec {
 314         u_char arr[8];
 315 };
 316
 317 #define SNDCTL_TMR_TIMEBASE     _IOWR('T', 1, int)
 318 #define SNDCTL_TMR_START        _IO  ('T', 2)
 319 #define SNDCTL_TMR_STOP         _IO  ('T', 3)
 320 #define SNDCTL_TMR_CONTINUE     _IO  ('T', 4)
 321 #define SNDCTL_TMR_TEMPO        _IOWR('T', 5, int)
 322 #define SNDCTL_TMR_SOURCE       _IOWR('T', 6, int)
 323 #   define TMR_INTERNAL         0x00000001
 324 #   define TMR_EXTERNAL         0x00000002
 325 #       define TMR_MODE_MIDI    0x00000010
 326 #       define TMR_MODE_FSK     0x00000020
 327 #       define TMR_MODE_CLS     0x00000040
 328 #       define TMR_MODE_SMPTE   0x00000080
 329 #define SNDCTL_TMR_METRONOME    _IOW ('T', 7, int)
 330 #define SNDCTL_TMR_SELECT       _IOW ('T', 8, int)
 331
 332 /*
 333  *      Endian aware patch key generation algorithm.
 334  */
 335
 336 #if defined(_AIX) || defined(AIX)
 337 #  define _PATCHKEY(id) (0xfd00|id)
 338 #else
 339 #  define _PATCHKEY(id) ((id<<8)|0xfd)
 340 #endif
 341
 342 /*
 343  *      Sample loading mechanism for internal synthesizers (/dev/sequencer)
 344  *      The following patch_info structure has been designed to support
 345  *      Gravis UltraSound. It tries to be universal format for uploading
 346  *      sample based patches but is probably too limited.
 347  */
 348
 349 struct patch_info {
 350 /*              u_short key;             Use GUS_PATCH here */
 351         short key;               /* Use GUS_PATCH here */
 352 #define GUS_PATCH       _PATCHKEY(0x04)
 353 #define OBSOLETE_GUS_PATCH      _PATCHKEY(0x02)
 354
 355         short device_no;        /* Synthesizer number */
 356         short instr_no;         /* Midi pgm# */
 357
 358         u_long mode;
 359 /*
 360  * The least significant byte has the same format than the GUS .PAT
 361  * files
 362  */
 363 #define WAVE_16_BITS    0x01    /* bit 0 = 8 or 16 bit wave data. */
 364 #define WAVE_UNSIGNED   0x02    /* bit 1 = Signed - Unsigned data. */
 365 #define WAVE_LOOPING    0x04    /* bit 2 = looping enabled-1. */
 366 #define WAVE_BIDIR_LOOP 0x08    /* bit 3 = Set is bidirectional looping. */
 367 #define WAVE_LOOP_BACK  0x10    /* bit 4 = Set is looping backward. */
 368 #define WAVE_SUSTAIN_ON 0x20    /* bit 5 = Turn sustaining on. (Env. pts. 3)*/
 369 #define WAVE_ENVELOPES  0x40    /* bit 6 = Enable envelopes - 1 */
 370                                 /*      (use the env_rate/env_offs fields). */
 371 /* Linux specific bits */
 372 #define WAVE_VIBRATO    0x00010000      /* The vibrato info is valid */
 373 #define WAVE_TREMOLO    0x00020000      /* The tremolo info is valid */
 374 #define WAVE_SCALE      0x00040000      /* The scaling info is valid */
 375 /* Other bits must be zeroed */
 376
 377         long len;       /* Size of the wave data in bytes */
 378         long loop_start, loop_end; /* Byte offsets from the beginning */
 379
 380 /*
 381  * The base_freq and base_note fields are used when computing the
 382  * playback speed for a note. The base_note defines the tone frequency
 383  * which is heard if the sample is played using the base_freq as the
 384  * playback speed.
 385  *
 386  * The low_note and high_note fields define the minimum and maximum note
 387  * frequencies for which this sample is valid. It is possible to define
 388  * more than one samples for an instrument number at the same time. The
 389  * low_note and high_note fields are used to select the most suitable one.
 390  *
 391  * The fields base_note, high_note and low_note should contain
 392  * the note frequency multiplied by 1000. For example value for the
 393  * middle A is 440*1000.
 394  */
 395
 396         u_int base_freq;
 397         u_long base_note;
 398         u_long high_note;
 399         u_long low_note;
 400         int panning;    /* -128=left, 127=right */
 401         int detuning;
 402
 403 /*      New fields introduced in version 1.99.5 */
 404
 405        /* Envelope. Enabled by mode bit WAVE_ENVELOPES  */
 406         u_char  env_rate[ 6 ];   /* GUS HW ramping rate */
 407         u_char  env_offset[ 6 ]; /* 255 == 100% */
 408
 409         /*
 410          * The tremolo, vibrato and scale info are not supported yet.
 411          * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
 412          * WAVE_SCALE
 413          */
 414
 415         u_char  tremolo_sweep;
 416         u_char  tremolo_rate;
 417         u_char  tremolo_depth;
 418
 419         u_char  vibrato_sweep;
 420         u_char  vibrato_rate;
 421         u_char  vibrato_depth;
 422
 423         int             scale_frequency;
 424         u_int   scale_factor;           /* from 0 to 2048 or 0 to 2 */
 425
 426         int             volume;
 427         int             spare[4];
 428         char data[1];   /* The waveform data starts here */
 429 };
 430
 431 struct sysex_info {
 432         short key;              /* Use GUS_PATCH here */
 433 #define SYSEX_PATCH     _PATCHKEY(0x05)
 434 #define MAUI_PATCH      _PATCHKEY(0x06)
 435         short device_no;        /* Synthesizer number */
 436         long len;       /* Size of the sysex data in bytes */
 437         u_char data[1]; /* Sysex data starts here */
 438 };
 439
 440 /*
 441  * Patch management interface (/dev/sequencer, /dev/patmgr#)
 442  * Don't use these calls if you want to maintain compatibility with
 443  * the future versions of the driver.
 444  */
 445
 446 #define PS_NO_PATCHES           0       /* No patch support on device */
 447 #define PS_MGR_NOT_OK           1       /* Plain patch support (no mgr) */
 448 #define PS_MGR_OK               2       /* Patch manager supported */
 449 #define PS_MANAGED              3       /* Patch manager running */
 450
 451 #define SNDCTL_PMGR_IFACE               _IOWR('P', 1, struct patmgr_info)
 452
 453 /*
 454  * The patmgr_info is a fixed size structure which is used for two
 455  * different purposes. The intended use is for communication between
 456  * the application using /dev/sequencer and the patch manager daemon
 457  * associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
 458  *
 459  * This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
 460  * a patch manager daemon to read and write device parameters. This
 461  * ioctl available through /dev/sequencer also. Avoid using it since it's
 462  * extremely hardware dependent. In addition access trough /dev/sequencer
 463  * may confuse the patch manager daemon.
 464  */
 465
 466 struct patmgr_info {    /* Note! size must be < 4k since kmalloc() is used */
 467           u_long key;   /* Don't worry. Reserved for communication
 468                                    between the patch manager and the driver. */
 469 #define PM_K_EVENT              1 /* Event from the /dev/sequencer driver */
 470 #define PM_K_COMMAND            2 /* Request from an application */
 471 #define PM_K_RESPONSE           3 /* From patmgr to application */
 472 #define PM_ERROR                4 /* Error returned by the patmgr */
 473           int device;
 474           int command;
 475
 476 /*
 477  * Commands 0x000 to 0xfff reserved for patch manager programs
 478  */
 479 #define PM_GET_DEVTYPE  1       /* Returns type of the patch mgr interface of dev */
 480 #define         PMTYPE_FM2      1       /* 2 OP fm */
 481 #define         PMTYPE_FM4      2       /* Mixed 4 or 2 op FM (OPL-3) */
 482 #define         PMTYPE_WAVE     3       /* Wave table synthesizer (GUS) */
 483 #define PM_GET_NRPGM    2       /* Returns max # of midi programs in parm1 */
 484 #define PM_GET_PGMMAP   3       /* Returns map of loaded midi programs in data8 */
 485 #define PM_GET_PGM_PATCHES 4    /* Return list of patches of a program (parm1) */
 486 #define PM_GET_PATCH    5       /* Return patch header of patch parm1 */
 487 #define PM_SET_PATCH    6       /* Set patch header of patch parm1 */
 488 #define PM_READ_PATCH   7       /* Read patch (wave) data */
 489 #define PM_WRITE_PATCH  8       /* Write patch (wave) data */
 490
 491 /*
 492  * Commands 0x1000 to 0xffff are for communication between the patch manager
 493  * and the client
 494  */
 495 #define _PM_LOAD_PATCH  0x100
 496
 497 /*
 498  * Commands above 0xffff reserved for device specific use
 499  */
 500
 501         long parm1;
 502         long parm2;
 503         long parm3;
 504
 505         union {
 506                 u_char data8[4000];
 507                 u_short data16[2000];
 508                 u_long data32[1000];
 509                 struct patch_info patch;
 510         } data;
 511 };
 512
 513 /*
 514  * When a patch manager daemon is present, it will be informed by the
 515  * driver when something important happens. For example when the
 516  * /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
 517  * returned. The command field contains the event type:
 518  */
 519 #define PM_E_OPENED             1       /* /dev/sequencer opened */
 520 #define PM_E_CLOSED             2       /* /dev/sequencer closed */
 521 #define PM_E_PATCH_RESET        3       /* SNDCTL_RESETSAMPLES called */
 522 #define PM_E_PATCH_LOADED       4       /* A patch has been loaded by appl */
 523
 524 /*
 525  * /dev/sequencer input events.
 526  *
 527  * The data written to the /dev/sequencer is a stream of events. Events
 528  * are records of 4 or 8 bytes. The first byte defines the size.
 529  * Any number of events can be written with a write call. There
 530  * is a set of macros for sending these events. Use these macros if you
 531  * want to maximize portability of your program.
 532  *
 533  * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
 534  * (All input events are currently 4 bytes long. Be prepared to support
 535  * 8 byte events also. If you receive any event having first byte >= 128,
 536  * it's a 8 byte event.
 537  *
 538  * The events are documented at the end of this file.
 539  *
 540  * Normal events (4 bytes)
 541  * There is also a 8 byte version of most of the 4 byte events. The
 542  * 8 byte one is recommended.
 543  */
 544 #define SEQ_NOTEOFF             0
 545 #define SEQ_FMNOTEOFF           SEQ_NOTEOFF     /* Just old name */
 546 #define SEQ_NOTEON              1
 547 #define SEQ_FMNOTEON            SEQ_NOTEON
 548 #define SEQ_WAIT                TMR_WAIT_ABS
 549 #define SEQ_PGMCHANGE           3
 550 #define SEQ_FMPGMCHANGE         SEQ_PGMCHANGE
 551 #define SEQ_SYNCTIMER           TMR_START
 552 #define SEQ_MIDIPUTC            5
 553 #define SEQ_DRUMON              6       /*** OBSOLETE ***/
 554 #define SEQ_DRUMOFF             7       /*** OBSOLETE ***/
 555 #define SEQ_ECHO                TMR_ECHO        /* For synching programs with output */
 556 #define SEQ_AFTERTOUCH          9
 557 #define SEQ_CONTROLLER          10
 558
 559 /*
 560  *      Midi controller numbers
 561  *
 562  * Controllers 0 to 31 (0x00 to 0x1f) and 32 to 63 (0x20 to 0x3f)
 563  * are continuous controllers.
 564  * In the MIDI 1.0 these controllers are sent using two messages.
 565  * Controller numbers 0 to 31 are used to send the MSB and the
 566  * controller numbers 32 to 63 are for the LSB. Note that just 7 bits
 567  * are used in MIDI bytes.
 568  */
 569
 570 #define CTL_BANK_SELECT         0x00
 571 #define CTL_MODWHEEL            0x01
 572 #define CTL_BREATH              0x02
 573 /*      undefined               0x03 */
 574 #define CTL_FOOT                0x04
 575 #define CTL_PORTAMENTO_TIME     0x05
 576 #define CTL_DATA_ENTRY          0x06
 577 #define CTL_MAIN_VOLUME         0x07
 578 #define CTL_BALANCE             0x08
 579 /*      undefined               0x09 */
 580 #define CTL_PAN                 0x0a
 581 #define CTL_EXPRESSION          0x0b
 582 /*      undefined               0x0c - 0x0f */
 583 #define CTL_GENERAL_PURPOSE1    0x10
 584 #define CTL_GENERAL_PURPOSE2    0x11
 585 #define CTL_GENERAL_PURPOSE3    0x12
 586 #define CTL_GENERAL_PURPOSE4    0x13
 587 /*      undefined               0x14 - 0x1f */
 588
 589 /*      undefined               0x20 */
 590
 591 /*
 592  * The controller numbers 0x21 to 0x3f are reserved for the
 593  * least significant bytes of the controllers 0x00 to 0x1f.
 594  * These controllers are not recognised by the driver.
 595  *
 596  * Controllers 64 to 69 (0x40 to 0x45) are on/off switches.
 597  * 0=OFF and 127=ON (intermediate values are possible)
 598  */
 599 #define CTL_DAMPER_PEDAL        0x40
 600 #define CTL_SUSTAIN             CTL_DAMPER_PEDAL        /* Alias */
 601 #define CTL_HOLD                CTL_DAMPER_PEDAL        /* Alias */
 602 #define CTL_PORTAMENTO          0x41
 603 #define CTL_SOSTENUTO           0x42
 604 #define CTL_SOFT_PEDAL          0x43
 605 /*      undefined               0x44 */
 606 #define CTL_HOLD2               0x45
 607 /*      undefined               0x46 - 0x4f */
 608
 609 #define CTL_GENERAL_PURPOSE5    0x50
 610 #define CTL_GENERAL_PURPOSE6    0x51
 611 #define CTL_GENERAL_PURPOSE7    0x52
 612 #define CTL_GENERAL_PURPOSE8    0x53
 613 /*      undefined               0x54 - 0x5a */
 614 #define CTL_EXT_EFF_DEPTH       0x5b
 615 #define CTL_TREMOLO_DEPTH       0x5c
 616 #define CTL_CHORUS_DEPTH        0x5d
 617 #define CTL_DETUNE_DEPTH        0x5e
 618 #define CTL_CELESTE_DEPTH       CTL_DETUNE_DEPTH /* Alias for the above one */
 619 #define CTL_PHASER_DEPTH        0x5f
 620 #define CTL_DATA_INCREMENT      0x60
 621 #define CTL_DATA_DECREMENT      0x61
 622 #define CTL_NONREG_PARM_NUM_LSB 0x62
 623 #define CTL_NONREG_PARM_NUM_MSB 0x63
 624 #define CTL_REGIST_PARM_NUM_LSB 0x64
 625 #define CTL_REGIST_PARM_NUM_MSB 0x65
 626 /*      undefined               0x66 - 0x78 */
 627 /*      reserved                0x79 - 0x7f */
 628
 629 /* Pseudo controllers (not midi compatible) */
 630 #define CTRL_PITCH_BENDER       255
 631 #define CTRL_PITCH_BENDER_RANGE 254
 632 #define CTRL_EXPRESSION         253     /* Obsolete */
 633 #define CTRL_MAIN_VOLUME        252     /* Obsolete */
 634
 635 #define SEQ_BALANCE             11
 636 #define SEQ_VOLMODE             12
 637
 638 /*
 639  * Volume mode decides how volumes are used
 640  */
 641
 642 #define VOL_METHOD_ADAGIO       1
 643 #define VOL_METHOD_LINEAR       2
 644
 645 /*
 646  * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
 647  *       input events.
 648  */
 649
 650 /*
 651  * Event codes 0xf0 to 0xfc are reserved for future extensions.
 652  */
 653
 654 #define SEQ_FULLSIZE            0xfd    /* Long events */
 655 /*
 656  * SEQ_FULLSIZE events are used for loading patches/samples to the
 657  * synthesizer devices. These events are passed directly to the driver
 658  * of the associated synthesizer device. There is no limit to the size
 659  * of the extended events. These events are not queued but executed
 660  * immediately when the write() is called (execution can take several
 661  * seconds of time).
 662  *
 663  * When a SEQ_FULLSIZE message is written to the device, it must
 664  * be written using exactly one write() call. Other events cannot
 665  * be mixed to the same write.
 666  *
 667  * For FM synths (YM3812/OPL3) use struct sbi_instrument and write
 668  * it to the /dev/sequencer. Don't write other data together with
 669  * the instrument structure Set the key field of the structure to
 670  * FM_PATCH. The device field is used to route the patch to the
 671  * corresponding device.
 672  *
 673  * For Gravis UltraSound use struct patch_info. Initialize the key field
 674  * to GUS_PATCH.
 675  */
 676 #define SEQ_PRIVATE     0xfe    /* Low level HW dependent events (8 bytes) */
 677 #define SEQ_EXTENDED    0xff    /* Extended events (8 bytes) OBSOLETE */
 678
 679 /*
 680  * Record for FM patches
 681  */
 682
 683 typedef u_char sbi_instr_data[32];
 684
 685 struct sbi_instrument {
 686         u_short key;    /* FM_PATCH or OPL3_PATCH */
 687 #define FM_PATCH        _PATCHKEY(0x01)
 688 #define OPL3_PATCH      _PATCHKEY(0x03)
 689         short           device;         /* Synth# (0-4) */
 690         int             channel;        /* Program# to be initialized  */
 691         sbi_instr_data  operators;      /* Reg. settings for operator cells
 692                                          * (.SBI format)        */
 693 };
 694
 695 struct synth_info {     /* Read only */
 696         char    name[30];
 697         int     device;         /* 0-N. INITIALIZE BEFORE CALLING */
 698         int     synth_type;
 699 #define SYNTH_TYPE_FM                   0
 700 #define SYNTH_TYPE_SAMPLE               1
 701 #define SYNTH_TYPE_MIDI                 2       /* Midi interface */
 702
 703         int     synth_subtype;
 704 #define FM_TYPE_ADLIB                   0x00
 705 #define FM_TYPE_OPL3                    0x01
 706 #define MIDI_TYPE_MPU401                0x401
 707
 708 #define SAMPLE_TYPE_BASIC               0x10
 709 #define SAMPLE_TYPE_GUS                 SAMPLE_TYPE_BASIC
 710 #define SAMPLE_TYPE_AWE32               0x20
 711
 712         int     perc_mode;      /* No longer supported */
 713         int     nr_voices;
 714         int     nr_drums;       /* Obsolete field */
 715         int     instr_bank_size;
 716         u_long  capabilities;
 717 #define SYNTH_CAP_PERCMODE      0x00000001 /* No longer used */
 718 #define SYNTH_CAP_OPL3          0x00000002 /* Set if OPL3 supported */
 719 #define SYNTH_CAP_INPUT         0x00000004 /* Input (MIDI) device */
 720         int     dummies[19];    /* Reserve space */
 721 };
 722
 723 struct sound_timer_info {
 724         char name[32];
 725         int caps;
 726 };
 727
 728 struct midi_info {
 729         char            name[30];
 730         int             device;         /* 0-N. INITIALIZE BEFORE CALLING */
 731         u_long  capabilities;   /* To be defined later */
 732         int             dev_type;
 733         int             dummies[18];    /* Reserve space */
 734 };
 735
 736 /*
 737  * ioctl commands for the /dev/midi##
 738  */
 739 typedef struct {
 740         u_char cmd;
 741         char nr_args, nr_returns;
 742         u_char data[30];
 743 } mpu_command_rec;
 744
 745 #define SNDCTL_MIDI_PRETIME     _IOWR('m', 0, int)
 746 #define SNDCTL_MIDI_MPUMODE     _IOWR('m', 1, int)
 747 #define SNDCTL_MIDI_MPUCMD      _IOWR('m', 2, mpu_command_rec)
 748 #define MIOSPASSTHRU            _IOWR('m', 3, int)
 749 #define MIOGPASSTHRU            _IOWR('m', 4, int)
 750
 751 /*
 752  * IOCTL commands for /dev/dsp and /dev/audio
 753  */
 754
 755 #define SNDCTL_DSP_RESET        _IO  ('P', 0)
 756 #define SNDCTL_DSP_SYNC         _IO  ('P', 1)
 757 #define SNDCTL_DSP_SPEED        _IOWR('P', 2, int)
 758 #define SNDCTL_DSP_STEREO       _IOWR('P', 3, int)
 759 #define SNDCTL_DSP_GETBLKSIZE   _IOR('P', 4, int)
 760 #define SNDCTL_DSP_SETBLKSIZE   _IOW('P', 4, int)
 761 #define SNDCTL_DSP_SETFMT       _IOWR('P',5, int) /* Selects ONE fmt*/
 762
 763 /*
 764  * SOUND_PCM_WRITE_CHANNELS is not that different
 765  * from SNDCTL_DSP_STEREO
 766  */
 767 #define SOUND_PCM_WRITE_CHANNELS        _IOWR('P', 6, int)
 768 #define SNDCTL_DSP_CHANNELS     SOUND_PCM_WRITE_CHANNELS
 769 #define SOUND_PCM_WRITE_FILTER  _IOWR('P', 7, int)
 770 #define SNDCTL_DSP_POST         _IO  ('P', 8)
 771
 772 /*
 773  * SNDCTL_DSP_SETBLKSIZE and the following two calls mostly do
 774  * the same thing, i.e. set the block size used in DMA transfers.
 775  */
 776 #define SNDCTL_DSP_SUBDIVIDE    _IOWR('P', 9, int)
 777 #define SNDCTL_DSP_SETFRAGMENT  _IOWR('P',10, int)
 778
 779
 780 #define SNDCTL_DSP_GETFMTS      _IOR ('P',11, int) /* Returns a mask */
 781 /*
 782  * Buffer status queries.
 783  */
 784 typedef struct audio_buf_info {
 785     int fragments;      /* # of avail. frags (partly used ones not counted) */
 786     int fragstotal;     /* Total # of fragments allocated */
 787     int fragsize;       /* Size of a fragment in bytes */
 788
 789     int bytes;  /* Avail. space in bytes (includes partly used fragments) */
 790                 /* Note! 'bytes' could be more than fragments*fragsize */
 791 } audio_buf_info;
 792
 793 #define SNDCTL_DSP_GETOSPACE    _IOR ('P',12, audio_buf_info)
 794 #define SNDCTL_DSP_GETISPACE    _IOR ('P',13, audio_buf_info)
 795
 796 /*
 797  * SNDCTL_DSP_NONBLOCK is the same (but less powerful, since the
 798  * action cannot be undone) of FIONBIO. The same can be achieved
 799  * by opening the device with O_NDELAY
 800  */
 801 #define SNDCTL_DSP_NONBLOCK     _IO  ('P',14)
 802
 803 #define SNDCTL_DSP_GETCAPS      _IOR ('P',15, int)
 804 #define DSP_CAP_REVISION        0x000000ff /* revision level (0 to 255) */
 805 #define DSP_CAP_DUPLEX          0x00000100 /* Full duplex record/playback */
 806 #define DSP_CAP_REALTIME        0x00000200 /* Real time capability */
 807 #define DSP_CAP_BATCH           0x00000400
 808     /*
 809      * Device has some kind of internal buffers which may
 810      * cause some delays and decrease precision of timing
 811      */
 812 #define DSP_CAP_COPROC          0x00000800
 813     /* Has a coprocessor, sometimes it's a DSP but usually not */
 814 #define DSP_CAP_TRIGGER         0x00001000 /* Supports SETTRIGGER */
 815 #define DSP_CAP_MMAP 0x00002000 /* Supports mmap() */
 816
 817 /*
 818  * What do these function do ?
 819  */
 820 #define SNDCTL_DSP_GETTRIGGER   _IOR ('P',16, int)
 821 #define SNDCTL_DSP_SETTRIGGER   _IOW ('P',16, int)
 822 #define PCM_ENABLE_INPUT        0x00000001
 823 #define PCM_ENABLE_OUTPUT       0x00000002
 824
 825 typedef struct count_info {
 826         int bytes;      /* Total # of bytes processed */
 827         int blocks;     /* # of fragment transitions since last time */
 828         int ptr;        /* Current DMA pointer value */
 829 } count_info;
 830
 831 /*
 832  * GETIPTR and GETISPACE are not that different... same for out.
 833  */
 834 #define SNDCTL_DSP_GETIPTR      _IOR ('P',17, count_info)
 835 #define SNDCTL_DSP_GETOPTR      _IOR ('P',18, count_info)
 836
 837 typedef struct buffmem_desc {
 838         caddr_t buffer;
 839         int size;
 840 } buffmem_desc;
 841
 842 #define SNDCTL_DSP_MAPINBUF     _IOR ('P', 19, buffmem_desc)
 843 #define SNDCTL_DSP_MAPOUTBUF    _IOR ('P', 20, buffmem_desc)
 844 #define SNDCTL_DSP_SETSYNCRO    _IO  ('P', 21)
 845 #define SNDCTL_DSP_SETDUPLEX    _IO  ('P', 22)
 846 #define SNDCTL_DSP_GETODELAY    _IOR ('P', 23, int)
 847
 848 /*
 849  * I guess these are the readonly version of the same
 850  * functions that exist above as SNDCTL_DSP_...
 851  */
 852 #define SOUND_PCM_READ_RATE     _IOR ('P', 2, int)
 853 #define SOUND_PCM_READ_CHANNELS _IOR ('P', 6, int)
 854 #define SOUND_PCM_READ_BITS     _IOR ('P', 5, int)
 855 #define SOUND_PCM_READ_FILTER   _IOR ('P', 7, int)
 856
 857 /*
 858  * ioctl calls to be used in communication with coprocessors and
 859  * DSP chips.
 860  */
 861
 862 typedef struct copr_buffer {
 863         int command;    /* Set to 0 if not used */
 864         int flags;
 865 #define CPF_NONE                0x0000
 866 #define CPF_FIRST               0x0001  /* First block */
 867 #define CPF_LAST                0x0002  /* Last block */
 868         int len;
 869         int offs;       /* If required by the device (0 if not used) */
 870
 871         u_char data[4000]; /* NOTE! 4000 is not 4k */
 872 } copr_buffer;
 873
 874 typedef struct copr_debug_buf {
 875         int command;    /* Used internally. Set to 0 */
 876         int parm1;
 877         int parm2;
 878         int flags;
 879         int len;        /* Length of data in bytes */
 880 } copr_debug_buf;
 881
 882 typedef struct copr_msg {
 883         int len;
 884         u_char data[4000];
 885 } copr_msg;
 886
 887 #define SNDCTL_COPR_RESET       _IO  ('C',  0)
 888 #define SNDCTL_COPR_LOAD        _IOWR('C',  1, copr_buffer)
 889 #define SNDCTL_COPR_RDATA       _IOWR('C',  2, copr_debug_buf)
 890 #define SNDCTL_COPR_RCODE       _IOWR('C',  3, copr_debug_buf)
 891 #define SNDCTL_COPR_WDATA       _IOW ('C',  4, copr_debug_buf)
 892 #define SNDCTL_COPR_WCODE       _IOW ('C',  5, copr_debug_buf)
 893 #define SNDCTL_COPR_RUN         _IOWR('C',  6, copr_debug_buf)
 894 #define SNDCTL_COPR_HALT        _IOWR('C',  7, copr_debug_buf)
 895 #define SNDCTL_COPR_SENDMSG     _IOW ('C',  8, copr_msg)
 896 #define SNDCTL_COPR_RCVMSG      _IOR ('C',  9, copr_msg)
 897
 898 /*
 899  * IOCTL commands for /dev/mixer
 900  */
 901
 902 /*
 903  * Mixer devices
 904  *
 905  * There can be up to 20 different analog mixer channels. The
 906  * SOUND_MIXER_NRDEVICES gives the currently supported maximum.
 907  * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
 908  * the devices supported by the particular mixer.
 909  */
 910
 911 #define SOUND_MIXER_NRDEVICES   25
 912 #define SOUND_MIXER_VOLUME      0       /* Master output level */
 913 #define SOUND_MIXER_BASS        1       /* Treble level of all output channels */
 914 #define SOUND_MIXER_TREBLE      2       /* Bass level of all output channels */
 915 #define SOUND_MIXER_SYNTH       3       /* Volume of synthesier input */
 916 #define SOUND_MIXER_PCM         4       /* Output level for the audio device */
 917 #define SOUND_MIXER_SPEAKER     5       /* Output level for the PC speaker
 918                                          * signals */
 919 #define SOUND_MIXER_LINE        6       /* Volume level for the line in jack */
 920 #define SOUND_MIXER_MIC         7       /* Volume for the signal coming from
 921                                          * the microphone jack */
 922 #define SOUND_MIXER_CD          8       /* Volume level for the input signal
 923                                          * connected to the CD audio input */
 924 #define SOUND_MIXER_IMIX        9       /* Recording monitor. It controls the
 925                                          * output volume of the selected
 926                                          * recording sources while recording */
 927 #define SOUND_MIXER_ALTPCM      10      /* Volume of the alternative codec
 928                                          * device */
 929 #define SOUND_MIXER_RECLEV      11      /* Global recording level */
 930 #define SOUND_MIXER_IGAIN       12      /* Input gain */
 931 #define SOUND_MIXER_OGAIN       13      /* Output gain */
 932 /*
 933  * The AD1848 codec and compatibles have three line level inputs
 934  * (line, aux1 and aux2). Since each card manufacturer have assigned
 935  * different meanings to these inputs, it's inpractical to assign
 936  * specific meanings (line, cd, synth etc.) to them.
 937  */
 938 #define SOUND_MIXER_LINE1       14      /* Input source 1  (aux1) */
 939 #define SOUND_MIXER_LINE2       15      /* Input source 2  (aux2) */
 940 #define SOUND_MIXER_LINE3       16      /* Input source 3  (line) */
 941 #define SOUND_MIXER_DIGITAL1    17      /* Digital (input) 1 */
 942 #define SOUND_MIXER_DIGITAL2    18      /* Digital (input) 2 */
 943 #define SOUND_MIXER_DIGITAL3    19      /* Digital (input) 3 */
 944 #define SOUND_MIXER_PHONEIN     20      /* Phone input */
 945 #define SOUND_MIXER_PHONEOUT    21      /* Phone output */
 946 #define SOUND_MIXER_VIDEO       22      /* Video/TV (audio) in */
 947 #define SOUND_MIXER_RADIO       23      /* Radio in */
 948 #define SOUND_MIXER_MONITOR     24      /* Monitor (usually mic) volume */
 949
 950
 951 /*
 952  * Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX)
 953  * Not counted to SOUND_MIXER_NRDEVICES, but use the same number space
 954  */
 955 #define SOUND_ONOFF_MIN         28
 956 #define SOUND_ONOFF_MAX         30
 957 #define SOUND_MIXER_MUTE        28      /* 0 or 1 */
 958 #define SOUND_MIXER_ENHANCE     29      /* Enhanced stereo (0, 40, 60 or 80) */
 959 #define SOUND_MIXER_LOUD        30      /* 0 or 1 */
 960
 961 /* Note!        Number 31 cannot be used since the sign bit is reserved */
 962 #define SOUND_MIXER_NONE        31
 963
 964 #define SOUND_DEVICE_LABELS     { \
 965         "Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
 966         "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
 967         "Line1", "Line2", "Line3", "Digital1", "Digital2", "Digital3", \
 968         "PhoneIn", "PhoneOut", "Video", "Radio", "Monitor"}
 969
 970 #define SOUND_DEVICE_NAMES      { \
 971         "vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
 972         "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
 973         "line1", "line2", "line3", "dig1", "dig2", "dig3", \
 974         "phin", "phout", "video", "radio", "monitor"}
 975
 976 /*      Device bitmask identifiers      */
 977
 978 #define SOUND_MIXER_RECSRC      0xff    /* 1 bit per recording source */
 979 #define SOUND_MIXER_DEVMASK     0xfe    /* 1 bit per supported device */
 980 #define SOUND_MIXER_RECMASK     0xfd    /* 1 bit per supp. recording source */
 981 #define SOUND_MIXER_CAPS        0xfc
 982 #define SOUND_CAP_EXCL_INPUT    0x00000001      /* Only 1 rec. src at a time */
 983 #define SOUND_MIXER_STEREODEVS  0xfb    /* Mixer channels supporting stereo */
 984
 985 /*      Device mask bits        */
 986
 987 #define SOUND_MASK_VOLUME       (1 << SOUND_MIXER_VOLUME)
 988 #define SOUND_MASK_BASS         (1 << SOUND_MIXER_BASS)
 989 #define SOUND_MASK_TREBLE       (1 << SOUND_MIXER_TREBLE)
 990 #define SOUND_MASK_SYNTH        (1 << SOUND_MIXER_SYNTH)
 991 #define SOUND_MASK_PCM          (1 << SOUND_MIXER_PCM)
 992 #define SOUND_MASK_SPEAKER      (1 << SOUND_MIXER_SPEAKER)
 993 #define SOUND_MASK_LINE         (1 << SOUND_MIXER_LINE)
 994 #define SOUND_MASK_MIC          (1 << SOUND_MIXER_MIC)
 995 #define SOUND_MASK_CD           (1 << SOUND_MIXER_CD)
 996 #define SOUND_MASK_IMIX         (1 << SOUND_MIXER_IMIX)
 997 #define SOUND_MASK_ALTPCM       (1 << SOUND_MIXER_ALTPCM)
 998 #define SOUND_MASK_RECLEV       (1 << SOUND_MIXER_RECLEV)
 999 #define SOUND_MASK_IGAIN        (1 << SOUND_MIXER_IGAIN)
1000 #define SOUND_MASK_OGAIN        (1 << SOUND_MIXER_OGAIN)
1001 #define SOUND_MASK_LINE1        (1 << SOUND_MIXER_LINE1)
1002 #define SOUND_MASK_LINE2        (1 << SOUND_MIXER_LINE2)
1003 #define SOUND_MASK_LINE3        (1 << SOUND_MIXER_LINE3)
1004 #define SOUND_MASK_DIGITAL1     (1 << SOUND_MIXER_DIGITAL1)
1005 #define SOUND_MASK_DIGITAL2     (1 << SOUND_MIXER_DIGITAL2)
1006 #define SOUND_MASK_DIGITAL3     (1 << SOUND_MIXER_DIGITAL3)
1007 #define SOUND_MASK_PHONEIN      (1 << SOUND_MIXER_PHONEIN)
1008 #define SOUND_MASK_PHONEOUT     (1 << SOUND_MIXER_PHONEOUT)
1009 #define SOUND_MASK_RADIO        (1 << SOUND_MIXER_RADIO)
1010 #define SOUND_MASK_VIDEO        (1 << SOUND_MIXER_VIDEO)
1011 #define SOUND_MASK_MONITOR      (1 << SOUND_MIXER_MONITOR)
1012
1013 /* Obsolete macros */
1014 #define SOUND_MASK_MUTE         (1 << SOUND_MIXER_MUTE)
1015 #define SOUND_MASK_ENHANCE      (1 << SOUND_MIXER_ENHANCE)
1016 #define SOUND_MASK_LOUD         (1 << SOUND_MIXER_LOUD)
1017
1018 #define MIXER_READ(dev)         _IOR('M', dev, int)
1019 #define SOUND_MIXER_READ_VOLUME         MIXER_READ(SOUND_MIXER_VOLUME)
1020 #define SOUND_MIXER_READ_BASS           MIXER_READ(SOUND_MIXER_BASS)
1021 #define SOUND_MIXER_READ_TREBLE         MIXER_READ(SOUND_MIXER_TREBLE)
1022 #define SOUND_MIXER_READ_SYNTH          MIXER_READ(SOUND_MIXER_SYNTH)
1023 #define SOUND_MIXER_READ_PCM            MIXER_READ(SOUND_MIXER_PCM)
1024 #define SOUND_MIXER_READ_SPEAKER        MIXER_READ(SOUND_MIXER_SPEAKER)
1025 #define SOUND_MIXER_READ_LINE           MIXER_READ(SOUND_MIXER_LINE)
1026 #define SOUND_MIXER_READ_MIC            MIXER_READ(SOUND_MIXER_MIC)
1027 #define SOUND_MIXER_READ_CD             MIXER_READ(SOUND_MIXER_CD)
1028 #define SOUND_MIXER_READ_IMIX           MIXER_READ(SOUND_MIXER_IMIX)
1029 #define SOUND_MIXER_READ_ALTPCM         MIXER_READ(SOUND_MIXER_ALTPCM)
1030 #define SOUND_MIXER_READ_RECLEV         MIXER_READ(SOUND_MIXER_RECLEV)
1031 #define SOUND_MIXER_READ_IGAIN          MIXER_READ(SOUND_MIXER_IGAIN)
1032 #define SOUND_MIXER_READ_OGAIN          MIXER_READ(SOUND_MIXER_OGAIN)
1033 #define SOUND_MIXER_READ_LINE1          MIXER_READ(SOUND_MIXER_LINE1)
1034 #define SOUND_MIXER_READ_LINE2          MIXER_READ(SOUND_MIXER_LINE2)
1035 #define SOUND_MIXER_READ_LINE3          MIXER_READ(SOUND_MIXER_LINE3)
1036 #define SOUND_MIXER_READ_DIGITAL1       MIXER_READ(SOUND_MIXER_DIGITAL1)
1037 #define SOUND_MIXER_READ_DIGITAL2       MIXER_READ(SOUND_MIXER_DIGITAL2)
1038 #define SOUND_MIXER_READ_DIGITAL3       MIXER_READ(SOUND_MIXER_DIGITAL3)
1039 #define SOUND_MIXER_READ_PHONEIN        MIXER_READ(SOUND_MIXER_PHONEIN)
1040 #define SOUND_MIXER_READ_PHONEOUT       MIXER_READ(SOUND_MIXER_PHONEOUT)
1041 #define SOUND_MIXER_READ_RADIO          MIXER_READ(SOUND_MIXER_RADIO)
1042 #define SOUND_MIXER_READ_VIDEO          MIXER_READ(SOUND_MIXER_VIDEO)
1043 #define SOUND_MIXER_READ_MONITOR        MIXER_READ(SOUND_MIXER_MONITOR)
1044
1045 /* Obsolete macros */
1046 #define SOUND_MIXER_READ_MUTE           MIXER_READ(SOUND_MIXER_MUTE)
1047 #define SOUND_MIXER_READ_ENHANCE        MIXER_READ(SOUND_MIXER_ENHANCE)
1048 #define SOUND_MIXER_READ_LOUD           MIXER_READ(SOUND_MIXER_LOUD)
1049
1050 #define SOUND_MIXER_READ_RECSRC         MIXER_READ(SOUND_MIXER_RECSRC)
1051 #define SOUND_MIXER_READ_DEVMASK        MIXER_READ(SOUND_MIXER_DEVMASK)
1052 #define SOUND_MIXER_READ_RECMASK        MIXER_READ(SOUND_MIXER_RECMASK)
1053 #define SOUND_MIXER_READ_STEREODEVS     MIXER_READ(SOUND_MIXER_STEREODEVS)
1054 #define SOUND_MIXER_READ_CAPS           MIXER_READ(SOUND_MIXER_CAPS)
1055
1056 #define MIXER_WRITE(dev)                _IOWR('M', dev, int)
1057 #define SOUND_MIXER_WRITE_VOLUME        MIXER_WRITE(SOUND_MIXER_VOLUME)
1058 #define SOUND_MIXER_WRITE_BASS          MIXER_WRITE(SOUND_MIXER_BASS)
1059 #define SOUND_MIXER_WRITE_TREBLE        MIXER_WRITE(SOUND_MIXER_TREBLE)
1060 #define SOUND_MIXER_WRITE_SYNTH         MIXER_WRITE(SOUND_MIXER_SYNTH)
1061 #define SOUND_MIXER_WRITE_PCM           MIXER_WRITE(SOUND_MIXER_PCM)
1062 #define SOUND_MIXER_WRITE_SPEAKER       MIXER_WRITE(SOUND_MIXER_SPEAKER)
1063 #define SOUND_MIXER_WRITE_LINE          MIXER_WRITE(SOUND_MIXER_LINE)
1064 #define SOUND_MIXER_WRITE_MIC           MIXER_WRITE(SOUND_MIXER_MIC)
1065 #define SOUND_MIXER_WRITE_CD            MIXER_WRITE(SOUND_MIXER_CD)
1066 #define SOUND_MIXER_WRITE_IMIX          MIXER_WRITE(SOUND_MIXER_IMIX)
1067 #define SOUND_MIXER_WRITE_ALTPCM        MIXER_WRITE(SOUND_MIXER_ALTPCM)
1068 #define SOUND_MIXER_WRITE_RECLEV        MIXER_WRITE(SOUND_MIXER_RECLEV)
1069 #define SOUND_MIXER_WRITE_IGAIN         MIXER_WRITE(SOUND_MIXER_IGAIN)
1070 #define SOUND_MIXER_WRITE_OGAIN         MIXER_WRITE(SOUND_MIXER_OGAIN)
1071 #define SOUND_MIXER_WRITE_LINE1         MIXER_WRITE(SOUND_MIXER_LINE1)
1072 #define SOUND_MIXER_WRITE_LINE2         MIXER_WRITE(SOUND_MIXER_LINE2)
1073 #define SOUND_MIXER_WRITE_LINE3         MIXER_WRITE(SOUND_MIXER_LINE3)
1074 #define SOUND_MIXER_WRITE_DIGITAL1      MIXER_WRITE(SOUND_MIXER_DIGITAL1)
1075 #define SOUND_MIXER_WRITE_DIGITAL2      MIXER_WRITE(SOUND_MIXER_DIGITAL2)
1076 #define SOUND_MIXER_WRITE_DIGITAL3      MIXER_WRITE(SOUND_MIXER_DIGITAL3)
1077 #define SOUND_MIXER_WRITE_PHONEIN       MIXER_WRITE(SOUND_MIXER_PHONEIN)
1078 #define SOUND_MIXER_WRITE_PHONEOUT      MIXER_WRITE(SOUND_MIXER_PHONEOUT)
1079 #define SOUND_MIXER_WRITE_RADIO         MIXER_WRITE(SOUND_MIXER_RADIO)
1080 #define SOUND_MIXER_WRITE_VIDEO         MIXER_WRITE(SOUND_MIXER_VIDEO)
1081 #define SOUND_MIXER_WRITE_MONITOR       MIXER_WRITE(SOUND_MIXER_MONITOR)
1082
1083 #define SOUND_MIXER_WRITE_MUTE          MIXER_WRITE(SOUND_MIXER_MUTE)
1084 #define SOUND_MIXER_WRITE_ENHANCE       MIXER_WRITE(SOUND_MIXER_ENHANCE)
1085 #define SOUND_MIXER_WRITE_LOUD          MIXER_WRITE(SOUND_MIXER_LOUD)
1086
1087 #define SOUND_MIXER_WRITE_RECSRC        MIXER_WRITE(SOUND_MIXER_RECSRC)
1088
1089 typedef struct mixer_info {
1090   char id[16];
1091   char name[32];
1092   int  modify_counter;
1093   int fillers[10];
1094 } mixer_info;
1095
1096 #define SOUND_MIXER_INFO                _IOR('M', 101, mixer_info)
1097
1098 #define LEFT_CHN        0
1099 #define RIGHT_CHN       1
1100
1101 /*
1102  * Level 2 event types for /dev/sequencer
1103  */
1104
1105 /*
1106  * The 4 most significant bits of byte 0 specify the class of
1107  * the event:
1108  *
1109  *      0x8X = system level events,
1110  *      0x9X = device/port specific events, event[1] = device/port,
1111  *              The last 4 bits give the subtype:
1112  *                      0x02    = Channel event (event[3] = chn).
1113  *                      0x01    = note event (event[4] = note).
1114  *                      (0x01 is not used alone but always with bit 0x02).
1115  *             event[2] = MIDI message code (0x80=note off etc.)
1116  *
1117  */
1118
1119 #define EV_SEQ_LOCAL            0x80
1120 #define EV_TIMING               0x81
1121 #define EV_CHN_COMMON           0x92
1122 #define EV_CHN_VOICE            0x93
1123 #define EV_SYSEX                0x94
1124 /*
1125  * Event types 200 to 220 are reserved for application use.
1126  * These numbers will not be used by the driver.
1127  */
1128
1129 /*
1130  * Events for event type EV_CHN_VOICE
1131  */
1132
1133 #define MIDI_NOTEOFF            0x80
1134 #define MIDI_NOTEON             0x90
1135 #define MIDI_KEY_PRESSURE       0xA0
1136
1137 /*
1138  * Events for event type EV_CHN_COMMON
1139  */
1140
1141 #define MIDI_CTL_CHANGE         0xB0
1142 #define MIDI_PGM_CHANGE         0xC0
1143 #define MIDI_CHN_PRESSURE       0xD0
1144 #define MIDI_PITCH_BEND         0xE0
1145
1146 #define MIDI_SYSTEM_PREFIX      0xF0
1147
1148 /*
1149  * Timer event types
1150  */
1151 #define TMR_WAIT_REL            1       /* Time relative to the prev time */
1152 #define TMR_WAIT_ABS            2       /* Absolute time since TMR_START */
1153 #define TMR_STOP                3
1154 #define TMR_START               4
1155 #define TMR_CONTINUE            5
1156 #define TMR_TEMPO               6
1157 #define TMR_ECHO                8
1158 #define TMR_CLOCK               9       /* MIDI clock */
1159 #define TMR_SPP                 10      /* Song position pointer */
1160 #define TMR_TIMESIG             11      /* Time signature */
1161
1162 /*
1163  *      Local event types
1164  */
1165 #define LOCL_STARTAUDIO         1
1166
1167 #if (!defined(_KERNEL) && !defined(INKERNEL)) || defined(USE_SEQ_MACROS)
1168 /*
1169  *      Some convenience macros to simplify programming of the
1170  *      /dev/sequencer interface
1171  *
1172  *      These macros define the API which should be used when possible.
1173  */
1174
1175 #ifndef USE_SIMPLE_MACROS
1176 void seqbuf_dump(void); /* This function must be provided by programs */
1177
1178 /* Sample seqbuf_dump() implementation:
1179  *
1180  *      SEQ_DEFINEBUF (2048);   -- Defines a buffer for 2048 bytes
1181  *
1182  *      int seqfd;              -- The file descriptor for /dev/sequencer.
1183  *
1184  *      void
1185  *      seqbuf_dump ()
1186  *      {
1187  *        if (_seqbufptr)
1188  *          if (write (seqfd, _seqbuf, _seqbufptr) == -1)
1189  *            {
1190  *              perror ("write /dev/sequencer");
1191  *              exit (-1);
1192  *            }
1193  *        _seqbufptr = 0;
1194  *      }
1195  */
1196
1197 #define SEQ_DEFINEBUF(len)              \
1198         u_char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
1199 #define SEQ_USE_EXTBUF()                \
1200         extern u_char _seqbuf[]; \
1201         extern int _seqbuflen;extern int _seqbufptr
1202 #define SEQ_DECLAREBUF()                SEQ_USE_EXTBUF()
1203 #define SEQ_PM_DEFINES                  struct patmgr_info _pm_info
1204 #define _SEQ_NEEDBUF(len)               \
1205         if ((_seqbufptr+(len)) > _seqbuflen) \
1206                 seqbuf_dump()
1207 #define _SEQ_ADVBUF(len)                _seqbufptr += len
1208 #define SEQ_DUMPBUF                     seqbuf_dump
1209 #else
1210 /*
1211  * This variation of the sequencer macros is used just to format one event
1212  * using fixed buffer.
1213  *
1214  * The program using the macro library must define the following macros before
1215  * using this library.
1216  *
1217  * #define _seqbuf               name of the buffer (u_char[])
1218  * #define _SEQ_ADVBUF(len)      If the applic needs to know the exact
1219  *                               size of the event, this macro can be used.
1220  *                               Otherwise this must be defined as empty.
1221  * #define _seqbufptr            Define the name of index variable or 0 if
1222  *                               not required.
1223  */
1224 #define _SEQ_NEEDBUF(len)       /* empty */
1225 #endif
1226
1227 #define PM_LOAD_PATCH(dev, bank, pgm)   \
1228         (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
1229         _pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
1230         _pm_info.parm1 = bank, _pm_info.parm2 = 1, \
1231         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
1232 #define PM_LOAD_PATCHES(dev, bank, pgm) \
1233         (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
1234         _pm_info.device=dev, bcopy( pgm, _pm_info.data.data8,  128), \
1235         _pm_info.parm1 = bank, _pm_info.parm2 = 128, \
1236         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
1237
1238 #define SEQ_VOLUME_MODE(dev, mode)      { \
1239         _SEQ_NEEDBUF(8);\
1240         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1241         _seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
1242         _seqbuf[_seqbufptr+2] = (dev);\
1243         _seqbuf[_seqbufptr+3] = (mode);\
1244         _seqbuf[_seqbufptr+4] = 0;\
1245         _seqbuf[_seqbufptr+5] = 0;\
1246         _seqbuf[_seqbufptr+6] = 0;\
1247         _seqbuf[_seqbufptr+7] = 0;\
1248         _SEQ_ADVBUF(8);}
1249
1250 /*
1251  * Midi voice messages
1252  */
1253
1254 #define _CHN_VOICE(dev, event, chn, note, parm)  { \
1255         _SEQ_NEEDBUF(8);\
1256         _seqbuf[_seqbufptr] = EV_CHN_VOICE;\
1257         _seqbuf[_seqbufptr+1] = (dev);\
1258         _seqbuf[_seqbufptr+2] = (event);\
1259         _seqbuf[_seqbufptr+3] = (chn);\
1260         _seqbuf[_seqbufptr+4] = (note);\
1261         _seqbuf[_seqbufptr+5] = (parm);\
1262         _seqbuf[_seqbufptr+6] = (0);\
1263         _seqbuf[_seqbufptr+7] = 0;\
1264         _SEQ_ADVBUF(8);}
1265
1266 #define SEQ_START_NOTE(dev, chn, note, vol) \
1267                 _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
1268
1269 #define SEQ_STOP_NOTE(dev, chn, note, vol) \
1270                 _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
1271
1272 #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
1273                 _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
1274
1275 /*
1276  * Midi channel messages
1277  */
1278
1279 #define _CHN_COMMON(dev, event, chn, p1, p2, w14) { \
1280         _SEQ_NEEDBUF(8);\
1281         _seqbuf[_seqbufptr] = EV_CHN_COMMON;\
1282         _seqbuf[_seqbufptr+1] = (dev);\
1283         _seqbuf[_seqbufptr+2] = (event);\
1284         _seqbuf[_seqbufptr+3] = (chn);\
1285         _seqbuf[_seqbufptr+4] = (p1);\
1286         _seqbuf[_seqbufptr+5] = (p2);\
1287         *(short *)&_seqbuf[_seqbufptr+6] = (w14);\
1288         _SEQ_ADVBUF(8);}
1289 /*
1290  * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
1291  * sending any MIDI bytes but it's absolutely not possible. Trying to do
1292  * so _will_ cause problems with MPU401 intelligent mode).
1293  *
1294  * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be
1295  * sent by calling SEQ_SYSEX() several times (there must be no other events
1296  * between them). First sysex fragment must have 0xf0 in the first byte
1297  * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
1298  * between these sysex start and end markers cannot be larger than 0x7f. Also
1299  * lengths of each fragments (except the last one) must be 6.
1300  *
1301  * Breaking the above rules may work with some MIDI ports but is likely to
1302  * cause fatal problems with some other devices (such as MPU401).
1303  */
1304 #define SEQ_SYSEX(dev, buf, len) { \
1305         int i, l=(len); if (l>6)l=6;\
1306         _SEQ_NEEDBUF(8);\
1307         _seqbuf[_seqbufptr] = EV_SYSEX;\
1308         for(i=0;i<l;i++)_seqbuf[_seqbufptr+i+1] = (buf)[i];\
1309         for(i=l;i<6;i++)_seqbuf[_seqbufptr+i+1] = 0xff;\
1310         _SEQ_ADVBUF(8);}
1311
1312 #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
1313         _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
1314
1315 #define SEQ_SET_PATCH(dev, chn, patch) \
1316         _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
1317
1318 #define SEQ_CONTROL(dev, chn, controller, value) \
1319         _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
1320
1321 #define SEQ_BENDER(dev, chn, value) \
1322         _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
1323
1324
1325 #define SEQ_V2_X_CONTROL(dev, voice, controller, value) { \
1326         _SEQ_NEEDBUF(8);\
1327         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1328         _seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
1329         _seqbuf[_seqbufptr+2] = (dev);\
1330         _seqbuf[_seqbufptr+3] = (voice);\
1331         _seqbuf[_seqbufptr+4] = (controller);\
1332         *(short *)&_seqbuf[_seqbufptr+5] = (value);\
1333         _seqbuf[_seqbufptr+7] = 0;\
1334         _SEQ_ADVBUF(8);}
1335
1336 /*
1337  * The following 5 macros are incorrectly implemented and obsolete.
1338  * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
1339  */
1340
1341 #define SEQ_PITCHBEND(dev, voice, value) \
1342         SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
1343 #define SEQ_BENDER_RANGE(dev, voice, value) \
1344         SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
1345 #define SEQ_EXPRESSION(dev, voice, value) \
1346         SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
1347 #define SEQ_MAIN_VOLUME(dev, voice, value) \
1348         SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
1349 #define SEQ_PANNING(dev, voice, pos) \
1350         SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
1351
1352 /*
1353  * Timing and syncronization macros
1354  */
1355
1356 #define _TIMER_EVENT(ev, parm)          { \
1357         _SEQ_NEEDBUF(8);\
1358         _seqbuf[_seqbufptr+0] = EV_TIMING; \
1359         _seqbuf[_seqbufptr+1] = (ev); \
1360         _seqbuf[_seqbufptr+2] = 0;\
1361         _seqbuf[_seqbufptr+3] = 0;\
1362         *(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
1363         _SEQ_ADVBUF(8); \
1364         }
1365
1366 #define SEQ_START_TIMER()               _TIMER_EVENT(TMR_START, 0)
1367 #define SEQ_STOP_TIMER()                _TIMER_EVENT(TMR_STOP, 0)
1368 #define SEQ_CONTINUE_TIMER()            _TIMER_EVENT(TMR_CONTINUE, 0)
1369 #define SEQ_WAIT_TIME(ticks)            _TIMER_EVENT(TMR_WAIT_ABS, ticks)
1370 #define SEQ_DELTA_TIME(ticks)           _TIMER_EVENT(TMR_WAIT_REL, ticks)
1371 #define SEQ_ECHO_BACK(key)              _TIMER_EVENT(TMR_ECHO, key)
1372 #define SEQ_SET_TEMPO(value)            _TIMER_EVENT(TMR_TEMPO, value)
1373 #define SEQ_SONGPOS(pos)                _TIMER_EVENT(TMR_SPP, pos)
1374 #define SEQ_TIME_SIGNATURE(sig)         _TIMER_EVENT(TMR_TIMESIG, sig)
1375
1376 /*
1377  * Local control events
1378  */
1379
1380 #define _LOCAL_EVENT(ev, parm)          { \
1381         _SEQ_NEEDBUF(8);\
1382         _seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
1383         _seqbuf[_seqbufptr+1] = (ev); \
1384         _seqbuf[_seqbufptr+2] = 0;\
1385         _seqbuf[_seqbufptr+3] = 0;\
1386         *(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
1387         _SEQ_ADVBUF(8); \
1388         }
1389
1390 #define SEQ_PLAYAUDIO(devmask)          _LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
1391 /*
1392  * Events for the level 1 interface only
1393  */
1394
1395 #define SEQ_MIDIOUT(device, byte)       { \
1396         _SEQ_NEEDBUF(4);\
1397         _seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
1398         _seqbuf[_seqbufptr+1] = (byte);\
1399         _seqbuf[_seqbufptr+2] = (device);\
1400         _seqbuf[_seqbufptr+3] = 0;\
1401         _SEQ_ADVBUF(4);}
1402
1403 /*
1404  * Patch loading.
1405  */
1406 #define SEQ_WRPATCH(patchx, len)        { \
1407         if (_seqbufptr) seqbuf_dump(); \
1408         if (write(seqfd, (char*)(patchx), len)==-1) \
1409            perror("Write patch: /dev/sequencer"); \
1410         }
1411
1412 #define SEQ_WRPATCH2(patchx, len)       \
1413         ( seqbuf_dump(), write(seqfd, (char*)(patchx), len) )
1414
1415 #endif
1416
1417 /*
1418  * Here I have moved all the aliases for ioctl names.
1419  */
1420
1421 #define SNDCTL_DSP_SAMPLESIZE   SNDCTL_DSP_SETFMT
1422 #define SOUND_PCM_WRITE_BITS    SNDCTL_DSP_SETFMT
1423 #define SOUND_PCM_SETFMT        SNDCTL_DSP_SETFMT
1424
1425 #define SOUND_PCM_WRITE_RATE    SNDCTL_DSP_SPEED
1426 #define SOUND_PCM_POST          SNDCTL_DSP_POST
1427 #define SOUND_PCM_RESET         SNDCTL_DSP_RESET
1428 #define SOUND_PCM_SYNC          SNDCTL_DSP_SYNC
1429 #define SOUND_PCM_SUBDIVIDE     SNDCTL_DSP_SUBDIVIDE
1430 #define SOUND_PCM_SETFRAGMENT   SNDCTL_DSP_SETFRAGMENT
1431 #define SOUND_PCM_GETFMTS       SNDCTL_DSP_GETFMTS
1432 #define SOUND_PCM_GETOSPACE     SNDCTL_DSP_GETOSPACE
1433 #define SOUND_PCM_GETISPACE     SNDCTL_DSP_GETISPACE
1434 #define SOUND_PCM_NONBLOCK      SNDCTL_DSP_NONBLOCK
1435 #define SOUND_PCM_GETCAPS       SNDCTL_DSP_GETCAPS
1436 #define SOUND_PCM_GETTRIGGER    SNDCTL_DSP_GETTRIGGER
1437 #define SOUND_PCM_SETTRIGGER    SNDCTL_DSP_SETTRIGGER
1438 #define SOUND_PCM_SETSYNCRO     SNDCTL_DSP_SETSYNCRO
1439 #define SOUND_PCM_GETIPTR       SNDCTL_DSP_GETIPTR
1440 #define SOUND_PCM_GETOPTR       SNDCTL_DSP_GETOPTR
1441 #define SOUND_PCM_MAPINBUF      SNDCTL_DSP_MAPINBUF
1442 #define SOUND_PCM_MAPOUTBUF     SNDCTL_DSP_MAPOUTBUF
1443
1444 /***********************************************************************/
1445
1446 /**
1447  * XXX OSSv4 defines -- some bits taken straight out of the new
1448  * sys/soundcard.h bundled with recent OSS releases.
1449  *
1450  * NB:  These macros and structures will be reorganized and inserted
1451  *      in appropriate places throughout this file once the code begins
1452  *      to take shape.
1453  *
1454  * @todo reorganize layout more like the 4Front version
1455  * @todo ask about maintaining __SIOWR vs. _IOWR ioctl cmd defines
1456  */
1457
1458 /**
1459  * @note The @c OSSV4_EXPERIMENT macro is meant to wrap new development code
1460  * in the sound system relevant to adopting 4Front's OSSv4 specification.
1461  * Users should not enable this!  Really!
1462  */
1463 #if 0
1464 # define OSSV4_EXPERIMENT 1
1465 #else
1466 # undef OSSV4_EXPERIMENT
1467 #endif
1468
1469 #ifdef SOUND_VERSION
1470 # undef SOUND_VERSION
1471 # define SOUND_VERSION  0x040000
1472 #endif  /* !SOUND_VERSION */
1473
1474 #define OSS_LONGNAME_SIZE       64
1475 #define OSS_LABEL_SIZE          16
1476 #define OSS_DEVNODE_SIZE        32
1477 typedef char oss_longname_t[OSS_LONGNAME_SIZE];
1478 typedef char oss_label_t[OSS_LABEL_SIZE];
1479 typedef char oss_devnode_t[OSS_DEVNODE_SIZE];
1480
1481 typedef struct audio_errinfo
1482 {
1483         int             play_underruns;
1484         int             rec_overruns;
1485         unsigned int    play_ptradjust;
1486         unsigned int    rec_ptradjust;
1487         int             play_errorcount;
1488         int             rec_errorcount;
1489         int             play_lasterror;
1490         int             rec_lasterror;
1491         long            play_errorparm;
1492         long            rec_errorparm;
1493         int             filler[16];
1494 } audio_errinfo;
1495
1496 #define SNDCTL_DSP_GETPLAYVOL           _IOR ('P', 24, int)
1497 #define SNDCTL_DSP_SETPLAYVOL           _IOWR('P', 24, int)
1498 #define SNDCTL_DSP_GETERROR             _IOR ('P', 25, audio_errinfo)
1499
1500
1501 /*
1502  ****************************************************************************
1503  * Sync groups for audio devices
1504  */
1505 typedef struct oss_syncgroup
1506 {
1507   int id;
1508   int mode;
1509   int filler[16];
1510 } oss_syncgroup;
1511
1512 #define SNDCTL_DSP_SYNCGROUP            _IOWR('P', 28, oss_syncgroup)
1513 #define SNDCTL_DSP_SYNCSTART            _IOW ('P', 29, int)
1514
1515 /*
1516  **************************************************************************
1517  * "cooked" mode enables software based conversions for sample rate, sample
1518  * format (bits) and number of channels (mono/stereo). These conversions are
1519  * required with some devices that support only one sample rate or just stereo
1520  * to let the applications to use other formats. The cooked mode is enabled by
1521  * default. However it's necessary to disable this mode when mmap() is used or
1522  * when very deterministic timing is required. SNDCTL_DSP_COOKEDMODE is an
1523  * optional call introduced in OSS 3.9.6f. It's _error return must be ignored_
1524  * since normally this call will return erno=EINVAL.
1525  *
1526  * SNDCTL_DSP_COOKEDMODE must be called immediately after open before doing
1527  * anything else. Otherwise the call will not have any effect.
1528  */
1529 #define SNDCTL_DSP_COOKEDMODE           _IOW ('P', 30, int)
1530
1531 /*
1532  **************************************************************************
1533  * SNDCTL_DSP_SILENCE and SNDCTL_DSP_SKIP are new calls in OSS 3.99.0
1534  * that can be used to implement pause/continue during playback (no effect
1535  * on recording).
1536  */
1537 #define SNDCTL_DSP_SILENCE              _IO  ('P', 31)
1538 #define SNDCTL_DSP_SKIP                 _IO  ('P', 32)
1539
1540 /*
1541  ****************************************************************************
1542  * Abort transfer (reset) functions for input and output
1543  */
1544 #define SNDCTL_DSP_HALT_INPUT           _IO  ('P', 33)
1545 #define SNDCTL_DSP_RESET_INPUT  SNDCTL_DSP_HALT_INPUT   /* Old name */
1546 #define SNDCTL_DSP_HALT_OUTPUT          _IO  ('P', 34)
1547 #define SNDCTL_DSP_RESET_OUTPUT SNDCTL_DSP_HALT_OUTPUT  /* Old name */
1548
1549 /*
1550  ****************************************************************************
1551  * Low water level control
1552  */
1553 #define SNDCTL_DSP_LOW_WATER            _IOW ('P', 34, int)
1554
1555 /** @todo Get rid of OSS_NO_LONG_LONG references? */
1556
1557 /*
1558  ****************************************************************************
1559  * 64 bit pointer support. Only available in environments that support
1560  * the 64 bit (long long) integer type.
1561  */
1562 #ifndef OSS_NO_LONG_LONG
1563 typedef struct
1564 {
1565   long long samples;
1566   int fifo_samples;
1567   int filler[32];               /* For future use */
1568 } oss_count_t;
1569
1570 #define SNDCTL_DSP_CURRENT_IPTR         _IOR ('P', 35, oss_count_t)
1571 #define SNDCTL_DSP_CURRENT_OPTR         _IOR ('P', 36, oss_count_t)
1572 #endif
1573
1574 /*
1575  ****************************************************************************
1576  * Interface for selecting recording sources and playback output routings.
1577  */
1578 #define SNDCTL_DSP_GET_RECSRC_NAMES     _IOR ('P', 37, oss_mixer_enuminfo)
1579 #define SNDCTL_DSP_GET_RECSRC           _IOR ('P', 38, int)
1580 #define SNDCTL_DSP_SET_RECSRC           _IOWR('P', 38, int)
1581
1582 #define SNDCTL_DSP_GET_PLAYTGT_NAMES    _IOR ('P', 39, oss_mixer_enuminfo)
1583 #define SNDCTL_DSP_GET_PLAYTGT          _IOR ('P', 40, int)
1584 #define SNDCTL_DSP_SET_PLAYTGT          _IOWR('P', 40, int)
1585 #define SNDCTL_DSP_GETRECVOL            _IOR ('P', 41, int)
1586 #define SNDCTL_DSP_SETRECVOL            _IOWR('P', 41, int)
1587
1588 /*
1589  ***************************************************************************
1590  * Some calls for setting the channel assignment with multi channel devices
1591  * (see the manual for details).                                                 */
1592 #define SNDCTL_DSP_GET_CHNORDER         _IOR ('P', 42, unsigned long long)
1593 #define SNDCTL_DSP_SET_CHNORDER         _IOWR('P', 42, unsigned long long)
1594 #       define CHID_UNDEF       0
1595 #       define CHID_L           1                                               #       define CHID_R           2
1596 #       define CHID_C           3
1597 #       define CHID_LFE         4
1598 #       define CHID_LS          5
1599 #       define CHID_RS          6
1600 #       define CHID_LR          7
1601 #       define CHID_RR          8
1602 #define CHNORDER_UNDEF          0x0000000000000000ULL
1603 #define CHNORDER_NORMAL         0x0000000087654321ULL
1604
1605 #define MAX_PEAK_CHANNELS       128
1606 typedef unsigned short oss_peaks_t[MAX_PEAK_CHANNELS];
1607 #define SNDCTL_DSP_GETIPEAKS            _IOR('P', 43, oss_peaks_t)
1608 #define SNDCTL_DSP_GETOPEAKS            _IOR('P', 44, oss_peaks_t)
1609 #define SNDCTL_DSP_POLICY               _IOW('P', 45, int)    /* See the manual */
1610
1611 /*
1612  * OSS_SYSIFO is obsolete. Use SNDCTL_SYSINFO insteads.
1613  */
1614 #define OSS_GETVERSION                  _IOR ('M', 118, int)
1615
1616 /**
1617  * @brief       Argument for SNDCTL_SYSINFO ioctl.
1618  *
1619  * For use w/ the SNDCTL_SYSINFO ioctl available on audio (/dev/dsp*),
1620  * mixer, and MIDI devices.
1621  */
1622 typedef struct oss_sysinfo
1623 {
1624         char    product[32];    /* For example OSS/Free, OSS/Linux or
1625                                    OSS/Solaris */
1626         char    version[32];    /* For example 4.0a */
1627         int     versionnum;     /* See OSS_GETVERSION */
1628         char    options[128];   /* Reserved */
1629
1630         int     numaudios;      /* # of audio/dsp devices */
1631         int     openedaudio[8]; /* Bit mask telling which audio devices
1632                                    are busy */
1633
1634         int     numsynths;      /* # of availavle synth devices */
1635         int     nummidis;       /* # of available MIDI ports */
1636         int     numtimers;      /* # of available timer devices */
1637         int     nummixers;      /* # of mixer devices */
1638
1639         int     openedmidi[8];  /* Bit mask telling which midi devices
1640                                    are busy */
1641         int     numcards;       /* Number of sound cards in the system */
1642         int     filler[241];    /* For future expansion (set to -1) */
1643 } oss_sysinfo;
1644
1645 typedef struct oss_mixext
1646 {
1647   int dev;                      /* Mixer device number */
1648   int ctrl;                     /* Controller number */
1649   int type;                     /* Entry type */
1650 #       define MIXT_DEVROOT      0      /* Device root entry */
1651 #       define MIXT_GROUP        1      /* Controller group */
1652 #       define MIXT_ONOFF        2      /* OFF (0) or ON (1) */
1653 #       define MIXT_ENUM         3      /* Enumerated (0 to maxvalue) */
1654 #       define MIXT_MONOSLIDER   4      /* Mono slider (0 to 100) */
1655 #       define MIXT_STEREOSLIDER 5      /* Stereo slider (dual 0 to 100) */
1656 #       define MIXT_MESSAGE      6      /* (Readable) textual message */
1657 #       define MIXT_MONOVU       7      /* VU meter value (mono) */
1658 #       define MIXT_STEREOVU     8      /* VU meter value (stereo) */
1659 #       define MIXT_MONOPEAK     9      /* VU meter peak value (mono) */
1660 #       define MIXT_STEREOPEAK  10      /* VU meter peak value (stereo) */
1661 #       define MIXT_RADIOGROUP  11      /* Radio button group */
1662 #       define MIXT_MARKER      12      /* Separator between normal and extension entries */
1663 #       define MIXT_VALUE       13      /* Decimal value entry */
1664 #       define MIXT_HEXVALUE    14      /* Hexadecimal value entry */
1665 #       define MIXT_MONODB      15      /* Mono atten. slider (0 to -144) */
1666 #       define MIXT_STEREODB    16      /* Stereo atten. slider (dual 0 to -144) */
1667 #       define MIXT_SLIDER      17      /* Slider (mono) with full integer range */
1668 #       define MIXT_3D          18
1669
1670   /* Possible value range (minvalue to maxvalue) */
1671   /* Note that maxvalue may also be smaller than minvalue */
1672   int maxvalue;
1673   int minvalue;
1674
1675   int flags;
1676 #       define MIXF_READABLE    0x00000001      /* Has readable value */
1677 #       define MIXF_WRITEABLE   0x00000002      /* Has writeable value */
1678 #       define MIXF_POLL        0x00000004      /* May change itself */
1679 #       define MIXF_HZ          0x00000008      /* Herz scale */
1680 #       define MIXF_STRING      0x00000010      /* Use dynamic extensions for value */
1681 #       define MIXF_DYNAMIC     0x00000010      /* Supports dynamic extensions */
1682 #       define MIXF_OKFAIL      0x00000020      /* Interpret value as 1=OK, 0=FAIL */
1683 #       define MIXF_FLAT        0x00000040      /* Flat vertical space requirements */
1684 #       define MIXF_LEGACY      0x00000080      /* Legacy mixer control group */
1685   char id[16];                  /* Mnemonic ID (mainly for internal use) */
1686   int parent;                   /* Entry# of parent (group) node (-1 if root) */
1687
1688   int dummy;                    /* Internal use */
1689
1690   int timestamp;
1691
1692   char data[64];                /* Misc data (entry type dependent) */
1693   unsigned char enum_present[32];       /* Mask of allowed enum values */
1694   int control_no;               /* SOUND_MIXER_VOLUME..SOUND_MIXER_MIDI */
1695   /* (-1 means not indicated) */
1696
1697 /*
1698  * The desc field is reserved for internal purposes of OSS. It should not be
1699  * used by applications.
1700  */
1701   unsigned int desc;
1702 #define MIXEXT_SCOPE_MASK                       0x0000003f
1703 #define MIXEXT_SCOPE_OTHER                      0x00000000
1704 #define MIXEXT_SCOPE_INPUT                      0x00000001
1705 #define MIXEXT_SCOPE_OUTPUT                     0x00000002
1706 #define MIXEXT_SCOPE_MONITOR                    0x00000003
1707 #define MIXEXT_SCOPE_RECSWITCH                  0x00000004
1708
1709   char extname[32];
1710   int update_counter;
1711   int filler[7];
1712 } oss_mixext;
1713
1714 typedef struct oss_mixext_root
1715 {
1716   char id[16];
1717   char name[48];
1718 } oss_mixext_root;
1719
1720 typedef struct oss_mixer_value
1721 {
1722   int dev;
1723   int ctrl;
1724   int value;
1725   int flags;                    /* Reserved for future use. Initialize to 0 */
1726   int timestamp;                /* Must be set to oss_mixext.timestamp */
1727   int filler[8];                /* Reserved for future use. Initialize to 0 */
1728 } oss_mixer_value;
1729
1730 #define OSS_ENUM_MAXVALUE       255
1731 typedef struct oss_mixer_enuminfo
1732 {
1733         int     dev;
1734         int     ctrl;
1735         int     nvalues;
1736         int     version;                  /* Read the manual */
1737         short   strindex[OSS_ENUM_MAXVALUE];
1738         char    strings[3000];
1739 } oss_mixer_enuminfo;
1740
1741 #define OPEN_READ       PCM_ENABLE_INPUT
1742 #define OPEN_WRITE      PCM_ENABLE_OUTPUT
1743 #define OPEN_READWRITE  (OPEN_READ|OPEN_WRITE)
1744
1745 /**
1746  * @brief       Argument for SNDCTL_AUDIOINFO ioctl.
1747  *
1748  * For use w/ the SNDCTL_AUDIOINFO ioctl available on audio (/dev/dsp*)
1749  * devices.
1750  */
1751 typedef struct oss_audioinfo
1752 {
1753         int     dev;            /* Audio device number */
1754         char    name[64];
1755         int     busy;           /* 0, OPEN_READ, OPEN_WRITE or OPEN_READWRITE */
1756         int     pid;
1757         int     caps;           /* DSP_CAP_INPUT, DSP_CAP_OUTPUT */
1758         int     iformats;
1759         int     oformats;
1760         int     magic;          /* Reserved for internal use */
1761         char    cmd[64];        /* Command using the device (if known) */
1762         int     card_number;
1763         int     port_number;
1764         int     mixer_dev;
1765         int     real_device;    /* Obsolete field. Replaced by devnode */
1766         int     enabled;        /* 1=enabled, 0=device not ready at this
1767                                    moment */
1768         int     flags;          /* For internal use only - no practical
1769                                    meaning */
1770         int     min_rate;       /* Sample rate limits */
1771         int     max_rate;
1772         int     min_channels;   /* Number of channels supported */
1773         int     max_channels;
1774         int     binding;        /* DSP_BIND_FRONT, etc. 0 means undefined */
1775         int     rate_source;
1776         char    handle[32];
1777         #define OSS_MAX_SAMPLE_RATES    20      /* Cannot be changed  */
1778         unsigned int nrates;
1779         unsigned int rates[OSS_MAX_SAMPLE_RATES]; /* Please read the manual before using these */
1780         oss_longname_t  song_name;      /* Song name (if given) */
1781         oss_label_t     label;          /* Device label (if given) */
1782         int             latency;        /* In usecs, -1=unknown */
1783         oss_devnode_t   devnode;        /* Device special file name (inside
1784                                            /dev) */
1785         int filler[186];
1786 } oss_audioinfo;
1787
1788 typedef struct oss_mixerinfo
1789 {
1790   int dev;
1791   char id[16];
1792   char name[32];
1793   int modify_counter;
1794   int card_number;
1795   int port_number;
1796   char handle[32];
1797   int magic;                    /* Reserved */
1798   int enabled;                  /* Reserved */
1799   int caps;
1800 #define MIXER_CAP_VIRTUAL                               0x00000001
1801   int flags;                    /* Reserved */
1802   int nrext;
1803   /*
1804    * The priority field can be used to select the default (motherboard)
1805    * mixer device. The mixer with the highest priority is the
1806    * most preferred one. -2 or less means that this device cannot be used
1807    * as the default mixer.
1808    */
1809   int priority;
1810   int filler[254];              /* Reserved */
1811 } oss_mixerinfo;
1812
1813 typedef struct oss_midi_info
1814 {
1815   int dev;                      /* Midi device number */
1816   char name[64];
1817   int busy;                     /* 0, OPEN_READ, OPEN_WRITE or OPEN_READWRITE */
1818   int pid;
1819   char cmd[64];                 /* Command using the device (if known) */
1820   int caps;
1821 #define MIDI_CAP_MPU401         0x00000001      /**** OBSOLETE ****/
1822 #define MIDI_CAP_INPUT          0x00000002
1823 #define MIDI_CAP_OUTPUT         0x00000004
1824 #define MIDI_CAP_INOUT          (MIDI_CAP_INPUT|MIDI_CAP_OUTPUT)
1825 #define MIDI_CAP_VIRTUAL        0x00000008      /* Pseudo device */
1826 #define MIDI_CAP_MTCINPUT       0x00000010      /* Supports SNDCTL_MIDI_MTCINPUT */
1827 #define MIDI_CAP_CLIENT         0x00000020      /* Virtual client side device */
1828 #define MIDI_CAP_SERVER         0x00000040      /* Virtual server side device */
1829 #define MIDI_CAP_INTERNAL       0x00000080      /* Internal (synth) device */
1830 #define MIDI_CAP_EXTERNAL       0x00000100      /* external (MIDI port) device */
1831 #define MIDI_CAP_PTOP           0x00000200      /* Point to point link to one device */
1832 #define MIDI_CAP_MTC            0x00000400      /* MTC/SMPTE (control) device */
1833   int magic;                    /* Reserved for internal use */
1834   int card_number;
1835   int port_number;
1836   int enabled;                  /* 1=enabled, 0=device not ready at this moment */
1837   int flags;                    /* For internal use only - no practical meaning */
1838   char handle[32];
1839   oss_longname_t song_name;     /* Song name (if known) */
1840   oss_label_t label;            /* Device label (if given) */
1841   int latency;                  /* In usecs, -1=unknown */
1842   int filler[244];
1843 } oss_midi_info;
1844
1845 typedef struct oss_card_info
1846 {
1847   int card;
1848   char shortname[16];
1849   char longname[128];
1850   int flags;
1851   int filler[256];
1852 } oss_card_info;
1853
1854 #define SNDCTL_SYSINFO          _IOR ('X', 1, oss_sysinfo)
1855 #define OSS_SYSINFO             SNDCTL_SYSINFO /* Old name */
1856
1857 #define SNDCTL_MIX_NRMIX        _IOR ('X', 2, int)
1858 #define SNDCTL_MIX_NREXT        _IOWR('X', 3, int)
1859 #define SNDCTL_MIX_EXTINFO      _IOWR('X', 4, oss_mixext)
1860 #define SNDCTL_MIX_READ         _IOWR('X', 5, oss_mixer_value)
1861 #define SNDCTL_MIX_WRITE        _IOWR('X', 6, oss_mixer_value)
1862
1863 #define SNDCTL_AUDIOINFO        _IOWR('X', 7, oss_audioinfo)
1864 #define SNDCTL_MIX_ENUMINFO     _IOWR('X', 8, oss_mixer_enuminfo)
1865 #define SNDCTL_MIDIINFO         _IOWR('X', 9, oss_midi_info)
1866 #define SNDCTL_MIXERINFO        _IOWR('X',10, oss_mixerinfo)
1867 #define SNDCTL_CARDINFO         _IOWR('X',11, oss_card_info)
1868
1869 /*
1870  * Few more "globally" available ioctl calls.
1871  */
1872 #define SNDCTL_SETSONG          _IOW ('Y', 2, oss_longname_t)
1873 #define SNDCTL_GETSONG          _IOR ('Y', 2, oss_longname_t)
1874 #define SNDCTL_SETNAME          _IOW ('Y', 3, oss_longname_t)
1875 #define SNDCTL_SETLABEL         _IOW ('Y', 4, oss_label_t)
1876 #define SNDCTL_GETLABEL         _IOR ('Y', 4, oss_label_t)
1877
1878 #endif  /* !_SYS_SOUNDCARD_H_ */