The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/sys/soundcard.h

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    1 /*
    2  * soundcard.h
    3  *
    4  * Copyright by Hannu Savolainen 1993
    5  * Modified for the new FreeBSD sound driver by Luigi Rizzo, 1997
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above
   13  *    copyright notice, this list of conditions and the following
   14  *    disclaimer in the documentation and/or other materials provided
   15  *    with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
   18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   20  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR
   21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   28  * POSSIBILITY OF SUCH DAMAGE.
   29  *
   30  * $FreeBSD: src/sys/sys/soundcard.h,v 1.43 2003/11/22 03:27:09 matk Exp $
   31  */
   32 
   33 #ifndef _SYS_SOUNDCARD_H_
   34 #define _SYS_SOUNDCARD_H_
   35  /*
   36   * If you make modifications to this file, please contact me before
   37   * distributing the modified version. There is already enough
   38   * diversity in the world.
   39   *
   40   * Regards,
   41   * Hannu Savolainen
   42   * hannu@voxware.pp.fi
   43   *
   44   **********************************************************************
   45   * PS. The Hacker's Guide to VoxWare available from
   46   *     nic.funet.fi:pub/Linux/ALPHA/sound. The file is
   47   *     snd-sdk-doc-0.1.ps.gz (gzipped postscript). It contains
   48   *     some useful information about programming with VoxWare.
   49   *     (NOTE! The pub/Linux/ALPHA/ directories are hidden. You have
   50   *     to cd inside them before the files are accessible.)
   51   **********************************************************************
   52   */
   53 
   54 /*
   55  * SOUND_VERSION is only used by the voxware driver. Hopefully apps
   56  * should not depend on it, but rather look at the capabilities
   57  * of the driver in the kernel!
   58  */
   59 #define SOUND_VERSION  301
   60 #define VOXWARE         /* does this have any use ? */
   61 
   62 /*
   63  * Supported card ID numbers (Should be somewhere else? We keep
   64  * them here just for compativility with the old driver, but these
   65  * constants are of little or no use).
   66  */
   67 
   68 #define SNDCARD_ADLIB          1
   69 #define SNDCARD_SB             2
   70 #define SNDCARD_PAS            3
   71 #define SNDCARD_GUS            4
   72 #define SNDCARD_MPU401         5
   73 #define SNDCARD_SB16           6
   74 #define SNDCARD_SB16MIDI       7
   75 #define SNDCARD_UART6850       8
   76 #define SNDCARD_GUS16          9
   77 #define SNDCARD_MSS            10
   78 #define SNDCARD_PSS            11
   79 #define SNDCARD_SSCAPE         12
   80 #define SNDCARD_PSS_MPU        13
   81 #define SNDCARD_PSS_MSS        14
   82 #define SNDCARD_SSCAPE_MSS     15
   83 #define SNDCARD_TRXPRO         16
   84 #define SNDCARD_TRXPRO_SB      17
   85 #define SNDCARD_TRXPRO_MPU     18
   86 #define SNDCARD_MAD16          19
   87 #define SNDCARD_MAD16_MPU      20
   88 #define SNDCARD_CS4232         21
   89 #define SNDCARD_CS4232_MPU     22
   90 #define SNDCARD_MAUI           23
   91 #define SNDCARD_PSEUDO_MSS     24
   92 #define SNDCARD_AWE32          25
   93 #define SNDCARD_NSS            26
   94 #define SNDCARD_UART16550      27
   95 #define SNDCARD_OPL            28
   96 
   97 #include <sys/types.h>
   98 #include <machine/endian.h>
   99 #ifndef _IOWR
  100 #include <sys/ioccom.h>
  101 #endif  /* !_IOWR */
  102 
  103 /*
  104  * The first part of this file contains the new FreeBSD sound ioctl
  105  * interface. Tries to minimize the number of different ioctls, and
  106  * to be reasonably general.
  107  *
  108  * 970821: some of the new calls have not been implemented yet.
  109  */
  110 
  111 /*
  112  * the following three calls extend the generic file descriptor
  113  * interface. AIONWRITE is the dual of FIONREAD, i.e. returns the max
  114  * number of bytes for a write operation to be non-blocking.
  115  *
  116  * AIOGSIZE/AIOSSIZE are used to change the behaviour of the device,
  117  * from a character device (default) to a block device. In block mode,
  118  * (not to be confused with blocking mode) the main difference for the
  119  * application is that select() will return only when a complete
  120  * block can be read/written to the device, whereas in character mode
  121  * select will return true when one byte can be exchanged. For audio
  122  * devices, character mode makes select almost useless since one byte
  123  * will always be ready by the next sample time (which is often only a
  124  * handful of microseconds away).
  125  * Use a size of 0 or 1 to return to character mode.
  126  */
  127 #define AIONWRITE   _IOR('A', 10, int)   /* get # bytes to write */
  128 struct snd_size {
  129     int play_size;
  130     int rec_size;
  131 };
  132 #define AIOGSIZE    _IOR('A', 11, struct snd_size)/* read current blocksize */
  133 #define AIOSSIZE    _IOWR('A', 11, struct snd_size)  /* sets blocksize */
  134 
  135 /*
  136  * The following constants define supported audio formats. The
  137  * encoding follows voxware conventions, i.e. 1 bit for each supported
  138  * format. We extend it by using bit 31 (RO) to indicate full-duplex
  139  * capability, and bit 29 (RO) to indicate that the card supports/
  140  * needs different formats on capture & playback channels.
  141  * Bit 29 (RW) is used to indicate/ask stereo.
  142  *
  143  * The number of bits required to store the sample is:
  144  *  o  4 bits for the IDA ADPCM format,
  145  *  o  8 bits for 8-bit formats, mu-law and A-law,
  146  *  o  16 bits for the 16-bit formats, and
  147  *  o  32 bits for the 24/32-bit formats.
  148  *  o  undefined for the MPEG audio format.
  149  */
  150 
  151 #define AFMT_QUERY      0x00000000      /* Return current format */
  152 #define AFMT_MU_LAW     0x00000001      /* Logarithmic mu-law */
  153 #define AFMT_A_LAW      0x00000002      /* Logarithmic A-law */
  154 #define AFMT_IMA_ADPCM  0x00000004      /* A 4:1 compressed format where 16-bit
  155                                          * squence represented using the
  156                                          * the average 4 bits per sample */
  157 #define AFMT_U8         0x00000008      /* Unsigned 8-bit */
  158 #define AFMT_S16_LE     0x00000010      /* Little endian signed 16-bit */
  159 #define AFMT_S16_BE     0x00000020      /* Big endian signed 16-bit */
  160 #define AFMT_S8         0x00000040      /* Signed 8-bit */
  161 #define AFMT_U16_LE     0x00000080      /* Little endian unsigned 16-bit */
  162 #define AFMT_U16_BE     0x00000100      /* Big endian unsigned 16-bit */
  163 #define AFMT_MPEG       0x00000200      /* MPEG MP2/MP3 audio */
  164 #define AFMT_AC3        0x00000400      /* Dolby Digital AC3 */
  165 
  166 #if _BYTE_ORDER == _LITTLE_ENDIAN
  167 #define AFMT_S16_NE     AFMT_S16_LE     /* native endian signed 16 */
  168 #else
  169 #define AFMT_S16_NE     AFMT_S16_BE
  170 #endif
  171 
  172 /*
  173  * 32-bit formats below used for 24-bit audio data where the data is stored
  174  * in the 24 most significant bits and the least significant bits are not used
  175  * (should be set to 0).
  176  */
  177 #define AFMT_S32_LE     0x00001000      /* Little endian signed 32-bit */
  178 #define AFMT_S32_BE     0x00002000      /* Big endian signed 32-bit */
  179 #define AFMT_U32_LE     0x00004000      /* Little endian unsigned 32-bit */
  180 #define AFMT_U32_BE     0x00008000      /* Big endian unsigned 32-bit */
  181 
  182 #define AFMT_STEREO     0x10000000      /* can do/want stereo   */
  183 
  184 /*
  185  * the following are really capabilities
  186  */
  187 #define AFMT_WEIRD      0x20000000      /* weird hardware...    */
  188     /*
  189      * AFMT_WEIRD reports that the hardware might need to operate
  190      * with different formats in the playback and capture
  191      * channels when operating in full duplex.
  192      * As an example, SoundBlaster16 cards only support U8 in one
  193      * direction and S16 in the other one, and applications should
  194      * be aware of this limitation.
  195      */
  196 #define AFMT_FULLDUPLEX 0x80000000      /* can do full duplex   */
  197 
  198 /*
  199  * The following structure is used to get/set format and sampling rate.
  200  * While it would be better to have things such as stereo, bits per
  201  * sample, endiannes, etc split in different variables, it turns out
  202  * that formats are not that many, and not all combinations are possible.
  203  * So we followed the Voxware approach of associating one bit to each
  204  * format.
  205  */
  206 
  207 typedef struct _snd_chan_param {
  208     u_long      play_rate;      /* sampling rate                        */
  209     u_long      rec_rate;       /* sampling rate                        */
  210     u_long      play_format;    /* everything describing the format     */
  211     u_long      rec_format;     /* everything describing the format     */
  212 } snd_chan_param;
  213 #define AIOGFMT    _IOR('f', 12, snd_chan_param)   /* get format */
  214 #define AIOSFMT    _IOWR('f', 12, snd_chan_param)  /* sets format */
  215 
  216 /*
  217  * The following structure is used to get/set the mixer setting.
  218  * Up to 32 mixers are supported, each one with up to 32 channels.
  219  */
  220 typedef struct _snd_mix_param {
  221     u_char      subdev; /* which output                         */
  222     u_char      line;   /* which input                          */
  223     u_char      left,right; /* volumes, 0..255, 0 = mute        */
  224 } snd_mix_param ;
  225 
  226 /* XXX AIOGMIX, AIOSMIX not implemented yet */
  227 #define AIOGMIX _IOWR('A', 13, snd_mix_param)   /* return mixer status */
  228 #define AIOSMIX _IOWR('A', 14, snd_mix_param)   /* sets mixer status   */
  229 
  230 /*
  231  * channel specifiers used in AIOSTOP and AIOSYNC
  232  */
  233 #define AIOSYNC_PLAY    0x1     /* play chan */
  234 #define AIOSYNC_CAPTURE 0x2     /* capture chan */
  235 /* AIOSTOP stop & flush a channel, returns the residual count */
  236 #define AIOSTOP _IOWR ('A', 15, int)
  237 
  238 /* alternate method used to notify the sync condition */
  239 #define AIOSYNC_SIGNAL  0x100
  240 #define AIOSYNC_SELECT  0x200
  241 
  242 /* what the 'pos' field refers to */
  243 #define AIOSYNC_READY   0x400
  244 #define AIOSYNC_FREE    0x800
  245 
  246 typedef struct _snd_sync_parm {
  247     long chan ; /* play or capture channel, plus modifier */
  248     long pos;
  249 } snd_sync_parm;
  250 #define AIOSYNC _IOWR ('A', 15, snd_sync_parm)  /* misc. synchronization */
  251 
  252 /*
  253  * The following is used to return device capabilities. If the structure
  254  * passed to the ioctl is zeroed, default values are returned for rate
  255  * and formats, a bitmap of available mixers is returned, and values
  256  * (inputs, different levels) for the first one are returned.
  257  *
  258  * If  formats, mixers, inputs are instantiated, then detailed info
  259  * are returned depending on the call.
  260  */
  261 typedef struct _snd_capabilities {
  262     u_long      rate_min, rate_max;     /* min-max sampling rate */
  263     u_long      formats;
  264     u_long      bufsize; /* DMA buffer size */
  265     u_long      mixers; /* bitmap of available mixers */
  266     u_long      inputs; /* bitmap of available inputs (per mixer) */
  267     u_short     left, right;    /* how many levels are supported */
  268 } snd_capabilities;
  269 #define AIOGCAP _IOWR('A', 15, snd_capabilities)        /* get capabilities */
  270 
  271 /*
  272  * here is the old (Voxware) ioctl interface
  273  */
  274 
  275 /*
  276  * IOCTL Commands for /dev/sequencer
  277  */
  278 
  279 #define SNDCTL_SEQ_RESET        _IO  ('Q', 0)
  280 #define SNDCTL_SEQ_SYNC         _IO  ('Q', 1)
  281 #define SNDCTL_SYNTH_INFO       _IOWR('Q', 2, struct synth_info)
  282 #define SNDCTL_SEQ_CTRLRATE     _IOWR('Q', 3, int) /* Set/get timer res.(hz) */
  283 #define SNDCTL_SEQ_GETOUTCOUNT  _IOR ('Q', 4, int)
  284 #define SNDCTL_SEQ_GETINCOUNT   _IOR ('Q', 5, int)
  285 #define SNDCTL_SEQ_PERCMODE     _IOW ('Q', 6, int)
  286 #define SNDCTL_FM_LOAD_INSTR    _IOW ('Q', 7, struct sbi_instrument)    /* Valid for FM only */
  287 #define SNDCTL_SEQ_TESTMIDI     _IOW ('Q', 8, int)
  288 #define SNDCTL_SEQ_RESETSAMPLES _IOW ('Q', 9, int)
  289 #define SNDCTL_SEQ_NRSYNTHS     _IOR ('Q',10, int)
  290 #define SNDCTL_SEQ_NRMIDIS      _IOR ('Q',11, int)
  291 #define SNDCTL_MIDI_INFO        _IOWR('Q',12, struct midi_info)
  292 #define SNDCTL_SEQ_THRESHOLD    _IOW ('Q',13, int)
  293 #define SNDCTL_SEQ_TRESHOLD     SNDCTL_SEQ_THRESHOLD    /* there was once a typo */
  294 #define SNDCTL_SYNTH_MEMAVL     _IOWR('Q',14, int) /* in=dev#, out=memsize */
  295 #define SNDCTL_FM_4OP_ENABLE    _IOW ('Q',15, int) /* in=dev# */
  296 #define SNDCTL_PMGR_ACCESS      _IOWR('Q',16, struct patmgr_info)
  297 #define SNDCTL_SEQ_PANIC        _IO  ('Q',17)
  298 #define SNDCTL_SEQ_OUTOFBAND    _IOW ('Q',18, struct seq_event_rec)
  299 #define SNDCTL_SEQ_GETTIME      _IOR ('Q',19, int)
  300 
  301 struct seq_event_rec {
  302         u_char arr[8];
  303 };
  304 
  305 #define SNDCTL_TMR_TIMEBASE     _IOWR('T', 1, int)
  306 #define SNDCTL_TMR_START        _IO  ('T', 2)
  307 #define SNDCTL_TMR_STOP         _IO  ('T', 3)
  308 #define SNDCTL_TMR_CONTINUE     _IO  ('T', 4)
  309 #define SNDCTL_TMR_TEMPO        _IOWR('T', 5, int)
  310 #define SNDCTL_TMR_SOURCE       _IOWR('T', 6, int)
  311 #   define TMR_INTERNAL         0x00000001
  312 #   define TMR_EXTERNAL         0x00000002
  313 #       define TMR_MODE_MIDI    0x00000010
  314 #       define TMR_MODE_FSK     0x00000020
  315 #       define TMR_MODE_CLS     0x00000040
  316 #       define TMR_MODE_SMPTE   0x00000080
  317 #define SNDCTL_TMR_METRONOME    _IOW ('T', 7, int)
  318 #define SNDCTL_TMR_SELECT       _IOW ('T', 8, int)
  319 
  320 /*
  321  *      Endian aware patch key generation algorithm.
  322  */
  323 
  324 #if defined(_AIX) || defined(AIX)
  325 #  define _PATCHKEY(id) (0xfd00|id)
  326 #else
  327 #  define _PATCHKEY(id) ((id<<8)|0xfd)
  328 #endif
  329 
  330 /*
  331  *      Sample loading mechanism for internal synthesizers (/dev/sequencer)
  332  *      The following patch_info structure has been designed to support
  333  *      Gravis UltraSound. It tries to be universal format for uploading
  334  *      sample based patches but is probably too limited.
  335  */
  336 
  337 struct patch_info {
  338 /*              u_short key;             Use GUS_PATCH here */
  339         short key;               /* Use GUS_PATCH here */
  340 #define GUS_PATCH       _PATCHKEY(0x04)
  341 #define OBSOLETE_GUS_PATCH      _PATCHKEY(0x02)
  342 
  343         short device_no;        /* Synthesizer number */
  344         short instr_no;         /* Midi pgm# */
  345 
  346         u_long mode;
  347 /*
  348  * The least significant byte has the same format than the GUS .PAT
  349  * files
  350  */
  351 #define WAVE_16_BITS    0x01    /* bit 0 = 8 or 16 bit wave data. */
  352 #define WAVE_UNSIGNED   0x02    /* bit 1 = Signed - Unsigned data. */
  353 #define WAVE_LOOPING    0x04    /* bit 2 = looping enabled-1. */
  354 #define WAVE_BIDIR_LOOP 0x08    /* bit 3 = Set is bidirectional looping. */
  355 #define WAVE_LOOP_BACK  0x10    /* bit 4 = Set is looping backward. */
  356 #define WAVE_SUSTAIN_ON 0x20    /* bit 5 = Turn sustaining on. (Env. pts. 3)*/
  357 #define WAVE_ENVELOPES  0x40    /* bit 6 = Enable envelopes - 1 */
  358                                 /*      (use the env_rate/env_offs fields). */
  359 /* Linux specific bits */
  360 #define WAVE_VIBRATO    0x00010000      /* The vibrato info is valid */
  361 #define WAVE_TREMOLO    0x00020000      /* The tremolo info is valid */
  362 #define WAVE_SCALE      0x00040000      /* The scaling info is valid */
  363 /* Other bits must be zeroed */
  364 
  365         long len;       /* Size of the wave data in bytes */
  366         long loop_start, loop_end; /* Byte offsets from the beginning */
  367 
  368 /*
  369  * The base_freq and base_note fields are used when computing the
  370  * playback speed for a note. The base_note defines the tone frequency
  371  * which is heard if the sample is played using the base_freq as the
  372  * playback speed.
  373  *
  374  * The low_note and high_note fields define the minimum and maximum note
  375  * frequencies for which this sample is valid. It is possible to define
  376  * more than one samples for an instrument number at the same time. The
  377  * low_note and high_note fields are used to select the most suitable one.
  378  *
  379  * The fields base_note, high_note and low_note should contain
  380  * the note frequency multiplied by 1000. For example value for the
  381  * middle A is 440*1000.
  382  */
  383 
  384         u_int base_freq;
  385         u_long base_note;
  386         u_long high_note;
  387         u_long low_note;
  388         int panning;    /* -128=left, 127=right */
  389         int detuning;
  390 
  391 /*      New fields introduced in version 1.99.5 */
  392 
  393        /* Envelope. Enabled by mode bit WAVE_ENVELOPES  */
  394         u_char  env_rate[ 6 ];   /* GUS HW ramping rate */
  395         u_char  env_offset[ 6 ]; /* 255 == 100% */
  396 
  397         /*
  398          * The tremolo, vibrato and scale info are not supported yet.
  399          * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
  400          * WAVE_SCALE
  401          */
  402 
  403         u_char  tremolo_sweep;
  404         u_char  tremolo_rate;
  405         u_char  tremolo_depth;
  406 
  407         u_char  vibrato_sweep;
  408         u_char  vibrato_rate;
  409         u_char  vibrato_depth;
  410 
  411         int             scale_frequency;
  412         u_int   scale_factor;           /* from 0 to 2048 or 0 to 2 */
  413 
  414         int             volume;
  415         int             spare[4];
  416         char data[1];   /* The waveform data starts here */
  417 };
  418 
  419 struct sysex_info {
  420         short key;              /* Use GUS_PATCH here */
  421 #define SYSEX_PATCH     _PATCHKEY(0x05)
  422 #define MAUI_PATCH      _PATCHKEY(0x06)
  423         short device_no;        /* Synthesizer number */
  424         long len;       /* Size of the sysex data in bytes */
  425         u_char data[1]; /* Sysex data starts here */
  426 };
  427 
  428 /*
  429  * Patch management interface (/dev/sequencer, /dev/patmgr#)
  430  * Don't use these calls if you want to maintain compatibility with
  431  * the future versions of the driver.
  432  */
  433 
  434 #define PS_NO_PATCHES           0       /* No patch support on device */
  435 #define PS_MGR_NOT_OK           1       /* Plain patch support (no mgr) */
  436 #define PS_MGR_OK               2       /* Patch manager supported */
  437 #define PS_MANAGED              3       /* Patch manager running */
  438 
  439 #define SNDCTL_PMGR_IFACE               _IOWR('P', 1, struct patmgr_info)
  440 
  441 /*
  442  * The patmgr_info is a fixed size structure which is used for two
  443  * different purposes. The intended use is for communication between
  444  * the application using /dev/sequencer and the patch manager daemon
  445  * associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
  446  *
  447  * This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
  448  * a patch manager daemon to read and write device parameters. This
  449  * ioctl available through /dev/sequencer also. Avoid using it since it's
  450  * extremely hardware dependent. In addition access trough /dev/sequencer
  451  * may confuse the patch manager daemon.
  452  */
  453 
  454 struct patmgr_info {    /* Note! size must be < 4k since kmalloc() is used */
  455           u_long key;   /* Don't worry. Reserved for communication
  456                                    between the patch manager and the driver. */
  457 #define PM_K_EVENT              1 /* Event from the /dev/sequencer driver */
  458 #define PM_K_COMMAND            2 /* Request from an application */
  459 #define PM_K_RESPONSE           3 /* From patmgr to application */
  460 #define PM_ERROR                4 /* Error returned by the patmgr */
  461           int device;
  462           int command;
  463 
  464 /*
  465  * Commands 0x000 to 0xfff reserved for patch manager programs
  466  */
  467 #define PM_GET_DEVTYPE  1       /* Returns type of the patch mgr interface of dev */
  468 #define         PMTYPE_FM2      1       /* 2 OP fm */
  469 #define         PMTYPE_FM4      2       /* Mixed 4 or 2 op FM (OPL-3) */
  470 #define         PMTYPE_WAVE     3       /* Wave table synthesizer (GUS) */
  471 #define PM_GET_NRPGM    2       /* Returns max # of midi programs in parm1 */
  472 #define PM_GET_PGMMAP   3       /* Returns map of loaded midi programs in data8 */
  473 #define PM_GET_PGM_PATCHES 4    /* Return list of patches of a program (parm1) */
  474 #define PM_GET_PATCH    5       /* Return patch header of patch parm1 */
  475 #define PM_SET_PATCH    6       /* Set patch header of patch parm1 */
  476 #define PM_READ_PATCH   7       /* Read patch (wave) data */
  477 #define PM_WRITE_PATCH  8       /* Write patch (wave) data */
  478 
  479 /*
  480  * Commands 0x1000 to 0xffff are for communication between the patch manager
  481  * and the client
  482  */
  483 #define _PM_LOAD_PATCH  0x100
  484 
  485 /*
  486  * Commands above 0xffff reserved for device specific use
  487  */
  488 
  489         long parm1;
  490         long parm2;
  491         long parm3;
  492 
  493         union {
  494                 u_char data8[4000];
  495                 u_short data16[2000];
  496                 u_long data32[1000];
  497                 struct patch_info patch;
  498         } data;
  499 };
  500 
  501 /*
  502  * When a patch manager daemon is present, it will be informed by the
  503  * driver when something important happens. For example when the
  504  * /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
  505  * returned. The command field contains the event type:
  506  */
  507 #define PM_E_OPENED             1       /* /dev/sequencer opened */
  508 #define PM_E_CLOSED             2       /* /dev/sequencer closed */
  509 #define PM_E_PATCH_RESET        3       /* SNDCTL_RESETSAMPLES called */
  510 #define PM_E_PATCH_LOADED       4       /* A patch has been loaded by appl */
  511 
  512 /*
  513  * /dev/sequencer input events.
  514  *
  515  * The data written to the /dev/sequencer is a stream of events. Events
  516  * are records of 4 or 8 bytes. The first byte defines the size.
  517  * Any number of events can be written with a write call. There
  518  * is a set of macros for sending these events. Use these macros if you
  519  * want to maximize portability of your program.
  520  *
  521  * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
  522  * (All input events are currently 4 bytes long. Be prepared to support
  523  * 8 byte events also. If you receive any event having first byte >= 128,
  524  * it's a 8 byte event.
  525  *
  526  * The events are documented at the end of this file.
  527  *
  528  * Normal events (4 bytes)
  529  * There is also a 8 byte version of most of the 4 byte events. The
  530  * 8 byte one is recommended.
  531  */
  532 #define SEQ_NOTEOFF             0
  533 #define SEQ_FMNOTEOFF           SEQ_NOTEOFF     /* Just old name */
  534 #define SEQ_NOTEON              1
  535 #define SEQ_FMNOTEON            SEQ_NOTEON
  536 #define SEQ_WAIT                TMR_WAIT_ABS
  537 #define SEQ_PGMCHANGE           3
  538 #define SEQ_FMPGMCHANGE         SEQ_PGMCHANGE
  539 #define SEQ_SYNCTIMER           TMR_START
  540 #define SEQ_MIDIPUTC            5
  541 #define SEQ_DRUMON              6       /*** OBSOLETE ***/
  542 #define SEQ_DRUMOFF             7       /*** OBSOLETE ***/
  543 #define SEQ_ECHO                TMR_ECHO        /* For synching programs with output */
  544 #define SEQ_AFTERTOUCH          9
  545 #define SEQ_CONTROLLER          10
  546 
  547 /*
  548  *      Midi controller numbers
  549  *
  550  * Controllers 0 to 31 (0x00 to 0x1f) and 32 to 63 (0x20 to 0x3f)
  551  * are continuous controllers.
  552  * In the MIDI 1.0 these controllers are sent using two messages.
  553  * Controller numbers 0 to 31 are used to send the MSB and the
  554  * controller numbers 32 to 63 are for the LSB. Note that just 7 bits
  555  * are used in MIDI bytes.
  556  */
  557 
  558 #define CTL_BANK_SELECT         0x00
  559 #define CTL_MODWHEEL            0x01
  560 #define CTL_BREATH              0x02
  561 /*      undefined               0x03 */
  562 #define CTL_FOOT                0x04
  563 #define CTL_PORTAMENTO_TIME     0x05
  564 #define CTL_DATA_ENTRY          0x06
  565 #define CTL_MAIN_VOLUME         0x07
  566 #define CTL_BALANCE             0x08
  567 /*      undefined               0x09 */
  568 #define CTL_PAN                 0x0a
  569 #define CTL_EXPRESSION          0x0b
  570 /*      undefined               0x0c - 0x0f */
  571 #define CTL_GENERAL_PURPOSE1    0x10
  572 #define CTL_GENERAL_PURPOSE2    0x11
  573 #define CTL_GENERAL_PURPOSE3    0x12
  574 #define CTL_GENERAL_PURPOSE4    0x13
  575 /*      undefined               0x14 - 0x1f */
  576 
  577 /*      undefined               0x20 */
  578 
  579 /*
  580  * The controller numbers 0x21 to 0x3f are reserved for the
  581  * least significant bytes of the controllers 0x00 to 0x1f.
  582  * These controllers are not recognised by the driver.
  583  *
  584  * Controllers 64 to 69 (0x40 to 0x45) are on/off switches.
  585  * 0=OFF and 127=ON (intermediate values are possible)
  586  */
  587 #define CTL_DAMPER_PEDAL        0x40
  588 #define CTL_SUSTAIN             CTL_DAMPER_PEDAL        /* Alias */
  589 #define CTL_HOLD                CTL_DAMPER_PEDAL        /* Alias */
  590 #define CTL_PORTAMENTO          0x41
  591 #define CTL_SOSTENUTO           0x42
  592 #define CTL_SOFT_PEDAL          0x43
  593 /*      undefined               0x44 */
  594 #define CTL_HOLD2               0x45
  595 /*      undefined               0x46 - 0x4f */
  596 
  597 #define CTL_GENERAL_PURPOSE5    0x50
  598 #define CTL_GENERAL_PURPOSE6    0x51
  599 #define CTL_GENERAL_PURPOSE7    0x52
  600 #define CTL_GENERAL_PURPOSE8    0x53
  601 /*      undefined               0x54 - 0x5a */
  602 #define CTL_EXT_EFF_DEPTH       0x5b
  603 #define CTL_TREMOLO_DEPTH       0x5c
  604 #define CTL_CHORUS_DEPTH        0x5d
  605 #define CTL_DETUNE_DEPTH        0x5e
  606 #define CTL_CELESTE_DEPTH       CTL_DETUNE_DEPTH /* Alias for the above one */
  607 #define CTL_PHASER_DEPTH        0x5f
  608 #define CTL_DATA_INCREMENT      0x60
  609 #define CTL_DATA_DECREMENT      0x61
  610 #define CTL_NONREG_PARM_NUM_LSB 0x62
  611 #define CTL_NONREG_PARM_NUM_MSB 0x63
  612 #define CTL_REGIST_PARM_NUM_LSB 0x64
  613 #define CTL_REGIST_PARM_NUM_MSB 0x65
  614 /*      undefined               0x66 - 0x78 */
  615 /*      reserved                0x79 - 0x7f */
  616 
  617 /* Pseudo controllers (not midi compatible) */
  618 #define CTRL_PITCH_BENDER       255
  619 #define CTRL_PITCH_BENDER_RANGE 254
  620 #define CTRL_EXPRESSION         253     /* Obsolete */
  621 #define CTRL_MAIN_VOLUME        252     /* Obsolete */
  622 
  623 #define SEQ_BALANCE             11
  624 #define SEQ_VOLMODE             12
  625 
  626 /*
  627  * Volume mode decides how volumes are used
  628  */
  629 
  630 #define VOL_METHOD_ADAGIO       1
  631 #define VOL_METHOD_LINEAR       2
  632 
  633 /*
  634  * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
  635  *       input events.
  636  */
  637 
  638 /*
  639  * Event codes 0xf0 to 0xfc are reserved for future extensions.
  640  */
  641 
  642 #define SEQ_FULLSIZE            0xfd    /* Long events */
  643 /*
  644  * SEQ_FULLSIZE events are used for loading patches/samples to the
  645  * synthesizer devices. These events are passed directly to the driver
  646  * of the associated synthesizer device. There is no limit to the size
  647  * of the extended events. These events are not queued but executed
  648  * immediately when the write() is called (execution can take several
  649  * seconds of time).
  650  *
  651  * When a SEQ_FULLSIZE message is written to the device, it must
  652  * be written using exactly one write() call. Other events cannot
  653  * be mixed to the same write.
  654  *
  655  * For FM synths (YM3812/OPL3) use struct sbi_instrument and write
  656  * it to the /dev/sequencer. Don't write other data together with
  657  * the instrument structure Set the key field of the structure to
  658  * FM_PATCH. The device field is used to route the patch to the
  659  * corresponding device.
  660  *
  661  * For Gravis UltraSound use struct patch_info. Initialize the key field
  662  * to GUS_PATCH.
  663  */
  664 #define SEQ_PRIVATE     0xfe    /* Low level HW dependent events (8 bytes) */
  665 #define SEQ_EXTENDED    0xff    /* Extended events (8 bytes) OBSOLETE */
  666 
  667 /*
  668  * Record for FM patches
  669  */
  670 
  671 typedef u_char sbi_instr_data[32];
  672 
  673 struct sbi_instrument {
  674         u_short key;    /* FM_PATCH or OPL3_PATCH */
  675 #define FM_PATCH        _PATCHKEY(0x01)
  676 #define OPL3_PATCH      _PATCHKEY(0x03)
  677         short           device;         /* Synth# (0-4) */
  678         int             channel;        /* Program# to be initialized  */
  679         sbi_instr_data  operators;      /* Reg. settings for operator cells
  680                                          * (.SBI format)        */
  681 };
  682 
  683 struct synth_info {     /* Read only */
  684         char    name[30];
  685         int     device;         /* 0-N. INITIALIZE BEFORE CALLING */
  686         int     synth_type;
  687 #define SYNTH_TYPE_FM                   0
  688 #define SYNTH_TYPE_SAMPLE               1
  689 #define SYNTH_TYPE_MIDI                 2       /* Midi interface */
  690 
  691         int     synth_subtype;
  692 #define FM_TYPE_ADLIB                   0x00
  693 #define FM_TYPE_OPL3                    0x01
  694 #define MIDI_TYPE_MPU401                0x401
  695 
  696 #define SAMPLE_TYPE_BASIC               0x10
  697 #define SAMPLE_TYPE_GUS                 SAMPLE_TYPE_BASIC
  698 #define SAMPLE_TYPE_AWE32               0x20
  699 
  700         int     perc_mode;      /* No longer supported */
  701         int     nr_voices;
  702         int     nr_drums;       /* Obsolete field */
  703         int     instr_bank_size;
  704         u_long  capabilities;
  705 #define SYNTH_CAP_PERCMODE      0x00000001 /* No longer used */
  706 #define SYNTH_CAP_OPL3          0x00000002 /* Set if OPL3 supported */
  707 #define SYNTH_CAP_INPUT         0x00000004 /* Input (MIDI) device */
  708         int     dummies[19];    /* Reserve space */
  709 };
  710 
  711 struct sound_timer_info {
  712         char name[32];
  713         int caps;
  714 };
  715 
  716 #define MIDI_CAP_MPU401         1               /* MPU-401 intelligent mode */
  717 
  718 struct midi_info {
  719         char            name[30];
  720         int             device;         /* 0-N. INITIALIZE BEFORE CALLING */
  721         u_long  capabilities;   /* To be defined later */
  722         int             dev_type;
  723         int             dummies[18];    /* Reserve space */
  724 };
  725 
  726 /*
  727  * ioctl commands for the /dev/midi##
  728  */
  729 typedef struct {
  730         u_char cmd;
  731         char nr_args, nr_returns;
  732         u_char data[30];
  733 } mpu_command_rec;
  734 
  735 #define SNDCTL_MIDI_PRETIME     _IOWR('m', 0, int)
  736 #define SNDCTL_MIDI_MPUMODE     _IOWR('m', 1, int)
  737 #define SNDCTL_MIDI_MPUCMD      _IOWR('m', 2, mpu_command_rec)
  738 #define MIOSPASSTHRU            _IOWR('m', 3, int)
  739 #define MIOGPASSTHRU            _IOWR('m', 4, int)
  740 
  741 /*
  742  * IOCTL commands for /dev/dsp and /dev/audio
  743  */
  744 
  745 #define SNDCTL_DSP_RESET        _IO  ('P', 0)
  746 #define SNDCTL_DSP_SYNC         _IO  ('P', 1)
  747 #define SNDCTL_DSP_SPEED        _IOWR('P', 2, int)
  748 #define SNDCTL_DSP_STEREO       _IOWR('P', 3, int)
  749 #define SNDCTL_DSP_GETBLKSIZE   _IOR('P', 4, int)
  750 #define SNDCTL_DSP_SETBLKSIZE   _IOW('P', 4, int)
  751 #define SNDCTL_DSP_SETFMT       _IOWR('P',5, int) /* Selects ONE fmt*/
  752 
  753 /*
  754  * SOUND_PCM_WRITE_CHANNELS is not that different
  755  * from SNDCTL_DSP_STEREO
  756  */
  757 #define SOUND_PCM_WRITE_CHANNELS        _IOWR('P', 6, int)
  758 #define SNDCTL_DSP_CHANNELS     SOUND_PCM_WRITE_CHANNELS
  759 #define SOUND_PCM_WRITE_FILTER  _IOWR('P', 7, int)
  760 #define SNDCTL_DSP_POST         _IO  ('P', 8)
  761 
  762 /*
  763  * SNDCTL_DSP_SETBLKSIZE and the following two calls mostly do
  764  * the same thing, i.e. set the block size used in DMA transfers.
  765  */
  766 #define SNDCTL_DSP_SUBDIVIDE    _IOWR('P', 9, int)
  767 #define SNDCTL_DSP_SETFRAGMENT  _IOWR('P',10, int)
  768 
  769 
  770 #define SNDCTL_DSP_GETFMTS      _IOR ('P',11, int) /* Returns a mask */
  771 /*
  772  * Buffer status queries.
  773  */
  774 typedef struct audio_buf_info {
  775     int fragments;      /* # of avail. frags (partly used ones not counted) */
  776     int fragstotal;     /* Total # of fragments allocated */
  777     int fragsize;       /* Size of a fragment in bytes */
  778 
  779     int bytes;  /* Avail. space in bytes (includes partly used fragments) */
  780                 /* Note! 'bytes' could be more than fragments*fragsize */
  781 } audio_buf_info;
  782 
  783 #define SNDCTL_DSP_GETOSPACE    _IOR ('P',12, audio_buf_info)
  784 #define SNDCTL_DSP_GETISPACE    _IOR ('P',13, audio_buf_info)
  785 
  786 /*
  787  * SNDCTL_DSP_NONBLOCK is the same (but less powerful, since the
  788  * action cannot be undone) of FIONBIO. The same can be achieved
  789  * by opening the device with O_NDELAY
  790  */
  791 #define SNDCTL_DSP_NONBLOCK     _IO  ('P',14)
  792 
  793 #define SNDCTL_DSP_GETCAPS      _IOR ('P',15, int)
  794 #define DSP_CAP_REVISION        0x000000ff /* revision level (0 to 255) */
  795 #define DSP_CAP_DUPLEX          0x00000100 /* Full duplex record/playback */
  796 #define DSP_CAP_REALTIME        0x00000200 /* Real time capability */
  797 #define DSP_CAP_BATCH           0x00000400
  798     /*
  799      * Device has some kind of internal buffers which may
  800      * cause some delays and decrease precision of timing
  801      */
  802 #define DSP_CAP_COPROC          0x00000800
  803     /* Has a coprocessor, sometimes it's a DSP but usually not */
  804 #define DSP_CAP_TRIGGER         0x00001000 /* Supports SETTRIGGER */
  805 #define DSP_CAP_MMAP 0x00002000 /* Supports mmap() */
  806 
  807 /*
  808  * What do these function do ?
  809  */
  810 #define SNDCTL_DSP_GETTRIGGER   _IOR ('P',16, int)
  811 #define SNDCTL_DSP_SETTRIGGER   _IOW ('P',16, int)
  812 #define PCM_ENABLE_INPUT        0x00000001
  813 #define PCM_ENABLE_OUTPUT       0x00000002
  814 
  815 typedef struct count_info {
  816         int bytes;      /* Total # of bytes processed */
  817         int blocks;     /* # of fragment transitions since last time */
  818         int ptr;        /* Current DMA pointer value */
  819 } count_info;
  820 
  821 /*
  822  * GETIPTR and GETISPACE are not that different... same for out.
  823  */
  824 #define SNDCTL_DSP_GETIPTR      _IOR ('P',17, count_info)
  825 #define SNDCTL_DSP_GETOPTR      _IOR ('P',18, count_info)
  826 
  827 typedef struct buffmem_desc {
  828         caddr_t buffer;
  829         int size;
  830 } buffmem_desc;
  831 
  832 #define SNDCTL_DSP_MAPINBUF     _IOR ('P', 19, buffmem_desc)
  833 #define SNDCTL_DSP_MAPOUTBUF    _IOR ('P', 20, buffmem_desc)
  834 #define SNDCTL_DSP_SETSYNCRO    _IO  ('P', 21)
  835 #define SNDCTL_DSP_SETDUPLEX    _IO  ('P', 22)
  836 #define SNDCTL_DSP_GETODELAY    _IOR ('P', 23, int)
  837 
  838 /*
  839  * I guess these are the readonly version of the same
  840  * functions that exist above as SNDCTL_DSP_...
  841  */
  842 #define SOUND_PCM_READ_RATE     _IOR ('P', 2, int)
  843 #define SOUND_PCM_READ_CHANNELS _IOR ('P', 6, int)
  844 #define SOUND_PCM_READ_BITS     _IOR ('P', 5, int)
  845 #define SOUND_PCM_READ_FILTER   _IOR ('P', 7, int)
  846 
  847 /*
  848  * ioctl calls to be used in communication with coprocessors and
  849  * DSP chips.
  850  */
  851 
  852 typedef struct copr_buffer {
  853         int command;    /* Set to 0 if not used */
  854         int flags;
  855 #define CPF_NONE                0x0000
  856 #define CPF_FIRST               0x0001  /* First block */
  857 #define CPF_LAST                0x0002  /* Last block */
  858         int len;
  859         int offs;       /* If required by the device (0 if not used) */
  860 
  861         u_char data[4000]; /* NOTE! 4000 is not 4k */
  862 } copr_buffer;
  863 
  864 typedef struct copr_debug_buf {
  865         int command;    /* Used internally. Set to 0 */
  866         int parm1;
  867         int parm2;
  868         int flags;
  869         int len;        /* Length of data in bytes */
  870 } copr_debug_buf;
  871 
  872 typedef struct copr_msg {
  873         int len;
  874         u_char data[4000];
  875 } copr_msg;
  876 
  877 #define SNDCTL_COPR_RESET       _IO  ('C',  0)
  878 #define SNDCTL_COPR_LOAD        _IOWR('C',  1, copr_buffer)
  879 #define SNDCTL_COPR_RDATA       _IOWR('C',  2, copr_debug_buf)
  880 #define SNDCTL_COPR_RCODE       _IOWR('C',  3, copr_debug_buf)
  881 #define SNDCTL_COPR_WDATA       _IOW ('C',  4, copr_debug_buf)
  882 #define SNDCTL_COPR_WCODE       _IOW ('C',  5, copr_debug_buf)
  883 #define SNDCTL_COPR_RUN         _IOWR('C',  6, copr_debug_buf)
  884 #define SNDCTL_COPR_HALT        _IOWR('C',  7, copr_debug_buf)
  885 #define SNDCTL_COPR_SENDMSG     _IOW ('C',  8, copr_msg)
  886 #define SNDCTL_COPR_RCVMSG      _IOR ('C',  9, copr_msg)
  887 
  888 /*
  889  * IOCTL commands for /dev/mixer
  890  */
  891 
  892 /*
  893  * Mixer devices
  894  *
  895  * There can be up to 20 different analog mixer channels. The
  896  * SOUND_MIXER_NRDEVICES gives the currently supported maximum.
  897  * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
  898  * the devices supported by the particular mixer.
  899  */
  900 
  901 #define SOUND_MIXER_NRDEVICES   25
  902 #define SOUND_MIXER_VOLUME      0       /* Master output level */
  903 #define SOUND_MIXER_BASS        1       /* Treble level of all output channels */
  904 #define SOUND_MIXER_TREBLE      2       /* Bass level of all output channels */
  905 #define SOUND_MIXER_SYNTH       3       /* Volume of synthesier input */
  906 #define SOUND_MIXER_PCM         4       /* Output level for the audio device */
  907 #define SOUND_MIXER_SPEAKER     5       /* Output level for the PC speaker
  908                                          * signals */
  909 #define SOUND_MIXER_LINE        6       /* Volume level for the line in jack */
  910 #define SOUND_MIXER_MIC         7       /* Volume for the signal coming from
  911                                          * the microphone jack */
  912 #define SOUND_MIXER_CD          8       /* Volume level for the input signal
  913                                          * connected to the CD audio input */
  914 #define SOUND_MIXER_IMIX        9       /* Recording monitor. It controls the
  915                                          * output volume of the selected
  916                                          * recording sources while recording */
  917 #define SOUND_MIXER_ALTPCM      10      /* Volume of the alternative codec
  918                                          * device */
  919 #define SOUND_MIXER_RECLEV      11      /* Global recording level */
  920 #define SOUND_MIXER_IGAIN       12      /* Input gain */
  921 #define SOUND_MIXER_OGAIN       13      /* Output gain */
  922 /*
  923  * The AD1848 codec and compatibles have three line level inputs
  924  * (line, aux1 and aux2). Since each card manufacturer have assigned
  925  * different meanings to these inputs, it's inpractical to assign
  926  * specific meanings (line, cd, synth etc.) to them.
  927  */
  928 #define SOUND_MIXER_LINE1       14      /* Input source 1  (aux1) */
  929 #define SOUND_MIXER_LINE2       15      /* Input source 2  (aux2) */
  930 #define SOUND_MIXER_LINE3       16      /* Input source 3  (line) */
  931 #define SOUND_MIXER_DIGITAL1    17      /* Digital (input) 1 */
  932 #define SOUND_MIXER_DIGITAL2    18      /* Digital (input) 2 */
  933 #define SOUND_MIXER_DIGITAL3    19      /* Digital (input) 3 */
  934 #define SOUND_MIXER_PHONEIN     20      /* Phone input */
  935 #define SOUND_MIXER_PHONEOUT    21      /* Phone output */
  936 #define SOUND_MIXER_VIDEO       22      /* Video/TV (audio) in */
  937 #define SOUND_MIXER_RADIO       23      /* Radio in */
  938 #define SOUND_MIXER_MONITOR     24      /* Monitor (usually mic) volume */
  939 
  940 
  941 /*
  942  * Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX)
  943  * Not counted to SOUND_MIXER_NRDEVICES, but use the same number space
  944  */
  945 #define SOUND_ONOFF_MIN         28
  946 #define SOUND_ONOFF_MAX         30
  947 #define SOUND_MIXER_MUTE        28      /* 0 or 1 */
  948 #define SOUND_MIXER_ENHANCE     29      /* Enhanced stereo (0, 40, 60 or 80) */
  949 #define SOUND_MIXER_LOUD        30      /* 0 or 1 */
  950 
  951 /* Note!        Number 31 cannot be used since the sign bit is reserved */
  952 #define SOUND_MIXER_NONE        31
  953 
  954 #define SOUND_DEVICE_LABELS     { \
  955         "Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
  956         "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
  957         "Line1", "Line2", "Line3", "Digital1", "Digital2", "Digital3", \
  958         "PhoneIn", "PhoneOut", "Video", "Radio", "Monitor"}
  959 
  960 #define SOUND_DEVICE_NAMES      { \
  961         "vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
  962         "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
  963         "line1", "line2", "line3", "dig1", "dig2", "dig3", \
  964         "phin", "phout", "video", "radio", "monitor"}
  965 
  966 /*      Device bitmask identifiers      */
  967 
  968 #define SOUND_MIXER_RECSRC      0xff    /* 1 bit per recording source */
  969 #define SOUND_MIXER_DEVMASK     0xfe    /* 1 bit per supported device */
  970 #define SOUND_MIXER_RECMASK     0xfd    /* 1 bit per supp. recording source */
  971 #define SOUND_MIXER_CAPS        0xfc
  972 #define SOUND_CAP_EXCL_INPUT    0x00000001      /* Only 1 rec. src at a time */
  973 #define SOUND_MIXER_STEREODEVS  0xfb    /* Mixer channels supporting stereo */
  974 
  975 /*      Device mask bits        */
  976 
  977 #define SOUND_MASK_VOLUME       (1 << SOUND_MIXER_VOLUME)
  978 #define SOUND_MASK_BASS         (1 << SOUND_MIXER_BASS)
  979 #define SOUND_MASK_TREBLE       (1 << SOUND_MIXER_TREBLE)
  980 #define SOUND_MASK_SYNTH        (1 << SOUND_MIXER_SYNTH)
  981 #define SOUND_MASK_PCM          (1 << SOUND_MIXER_PCM)
  982 #define SOUND_MASK_SPEAKER      (1 << SOUND_MIXER_SPEAKER)
  983 #define SOUND_MASK_LINE         (1 << SOUND_MIXER_LINE)
  984 #define SOUND_MASK_MIC          (1 << SOUND_MIXER_MIC)
  985 #define SOUND_MASK_CD           (1 << SOUND_MIXER_CD)
  986 #define SOUND_MASK_IMIX         (1 << SOUND_MIXER_IMIX)
  987 #define SOUND_MASK_ALTPCM       (1 << SOUND_MIXER_ALTPCM)
  988 #define SOUND_MASK_RECLEV       (1 << SOUND_MIXER_RECLEV)
  989 #define SOUND_MASK_IGAIN        (1 << SOUND_MIXER_IGAIN)
  990 #define SOUND_MASK_OGAIN        (1 << SOUND_MIXER_OGAIN)
  991 #define SOUND_MASK_LINE1        (1 << SOUND_MIXER_LINE1)
  992 #define SOUND_MASK_LINE2        (1 << SOUND_MIXER_LINE2)
  993 #define SOUND_MASK_LINE3        (1 << SOUND_MIXER_LINE3)
  994 #define SOUND_MASK_DIGITAL1     (1 << SOUND_MIXER_DIGITAL1)
  995 #define SOUND_MASK_DIGITAL2     (1 << SOUND_MIXER_DIGITAL2)
  996 #define SOUND_MASK_DIGITAL3     (1 << SOUND_MIXER_DIGITAL3)
  997 #define SOUND_MASK_PHONEIN      (1 << SOUND_MIXER_PHONEIN)
  998 #define SOUND_MASK_PHONEOUT     (1 << SOUND_MIXER_PHONEOUT)
  999 #define SOUND_MASK_RADIO        (1 << SOUND_MIXER_RADIO)
 1000 #define SOUND_MASK_VIDEO        (1 << SOUND_MIXER_VIDEO)
 1001 #define SOUND_MASK_MONITOR      (1 << SOUND_MIXER_MONITOR)
 1002 
 1003 /* Obsolete macros */
 1004 #define SOUND_MASK_MUTE         (1 << SOUND_MIXER_MUTE)
 1005 #define SOUND_MASK_ENHANCE      (1 << SOUND_MIXER_ENHANCE)
 1006 #define SOUND_MASK_LOUD         (1 << SOUND_MIXER_LOUD)
 1007 
 1008 #define MIXER_READ(dev)         _IOR('M', dev, int)
 1009 #define SOUND_MIXER_READ_VOLUME         MIXER_READ(SOUND_MIXER_VOLUME)
 1010 #define SOUND_MIXER_READ_BASS           MIXER_READ(SOUND_MIXER_BASS)
 1011 #define SOUND_MIXER_READ_TREBLE         MIXER_READ(SOUND_MIXER_TREBLE)
 1012 #define SOUND_MIXER_READ_SYNTH          MIXER_READ(SOUND_MIXER_SYNTH)
 1013 #define SOUND_MIXER_READ_PCM            MIXER_READ(SOUND_MIXER_PCM)
 1014 #define SOUND_MIXER_READ_SPEAKER        MIXER_READ(SOUND_MIXER_SPEAKER)
 1015 #define SOUND_MIXER_READ_LINE           MIXER_READ(SOUND_MIXER_LINE)
 1016 #define SOUND_MIXER_READ_MIC            MIXER_READ(SOUND_MIXER_MIC)
 1017 #define SOUND_MIXER_READ_CD             MIXER_READ(SOUND_MIXER_CD)
 1018 #define SOUND_MIXER_READ_IMIX           MIXER_READ(SOUND_MIXER_IMIX)
 1019 #define SOUND_MIXER_READ_ALTPCM         MIXER_READ(SOUND_MIXER_ALTPCM)
 1020 #define SOUND_MIXER_READ_RECLEV         MIXER_READ(SOUND_MIXER_RECLEV)
 1021 #define SOUND_MIXER_READ_IGAIN          MIXER_READ(SOUND_MIXER_IGAIN)
 1022 #define SOUND_MIXER_READ_OGAIN          MIXER_READ(SOUND_MIXER_OGAIN)
 1023 #define SOUND_MIXER_READ_LINE1          MIXER_READ(SOUND_MIXER_LINE1)
 1024 #define SOUND_MIXER_READ_LINE2          MIXER_READ(SOUND_MIXER_LINE2)
 1025 #define SOUND_MIXER_READ_LINE3          MIXER_READ(SOUND_MIXER_LINE3)
 1026 #define SOUND_MIXER_READ_DIGITAL1       MIXER_READ(SOUND_MIXER_DIGITAL1)
 1027 #define SOUND_MIXER_READ_DIGITAL2       MIXER_READ(SOUND_MIXER_DIGITAL2)
 1028 #define SOUND_MIXER_READ_DIGITAL3       MIXER_READ(SOUND_MIXER_DIGITAL3)
 1029 #define SOUND_MIXER_READ_PHONEIN        MIXER_READ(SOUND_MIXER_PHONEIN)
 1030 #define SOUND_MIXER_READ_PHONEOUT       MIXER_READ(SOUND_MIXER_PHONEOUT)
 1031 #define SOUND_MIXER_READ_RADIO          MIXER_READ(SOUND_MIXER_RADIO)
 1032 #define SOUND_MIXER_READ_VIDEO          MIXER_READ(SOUND_MIXER_VIDEO)
 1033 #define SOUND_MIXER_READ_MONITOR        MIXER_READ(SOUND_MIXER_MONITOR)
 1034 
 1035 /* Obsolete macros */
 1036 #define SOUND_MIXER_READ_MUTE           MIXER_READ(SOUND_MIXER_MUTE)
 1037 #define SOUND_MIXER_READ_ENHANCE        MIXER_READ(SOUND_MIXER_ENHANCE)
 1038 #define SOUND_MIXER_READ_LOUD           MIXER_READ(SOUND_MIXER_LOUD)
 1039 
 1040 #define SOUND_MIXER_READ_RECSRC         MIXER_READ(SOUND_MIXER_RECSRC)
 1041 #define SOUND_MIXER_READ_DEVMASK        MIXER_READ(SOUND_MIXER_DEVMASK)
 1042 #define SOUND_MIXER_READ_RECMASK        MIXER_READ(SOUND_MIXER_RECMASK)
 1043 #define SOUND_MIXER_READ_STEREODEVS     MIXER_READ(SOUND_MIXER_STEREODEVS)
 1044 #define SOUND_MIXER_READ_CAPS           MIXER_READ(SOUND_MIXER_CAPS)
 1045 
 1046 #define MIXER_WRITE(dev)                _IOWR('M', dev, int)
 1047 #define SOUND_MIXER_WRITE_VOLUME        MIXER_WRITE(SOUND_MIXER_VOLUME)
 1048 #define SOUND_MIXER_WRITE_BASS          MIXER_WRITE(SOUND_MIXER_BASS)
 1049 #define SOUND_MIXER_WRITE_TREBLE        MIXER_WRITE(SOUND_MIXER_TREBLE)
 1050 #define SOUND_MIXER_WRITE_SYNTH         MIXER_WRITE(SOUND_MIXER_SYNTH)
 1051 #define SOUND_MIXER_WRITE_PCM           MIXER_WRITE(SOUND_MIXER_PCM)
 1052 #define SOUND_MIXER_WRITE_SPEAKER       MIXER_WRITE(SOUND_MIXER_SPEAKER)
 1053 #define SOUND_MIXER_WRITE_LINE          MIXER_WRITE(SOUND_MIXER_LINE)
 1054 #define SOUND_MIXER_WRITE_MIC           MIXER_WRITE(SOUND_MIXER_MIC)
 1055 #define SOUND_MIXER_WRITE_CD            MIXER_WRITE(SOUND_MIXER_CD)
 1056 #define SOUND_MIXER_WRITE_IMIX          MIXER_WRITE(SOUND_MIXER_IMIX)
 1057 #define SOUND_MIXER_WRITE_ALTPCM        MIXER_WRITE(SOUND_MIXER_ALTPCM)
 1058 #define SOUND_MIXER_WRITE_RECLEV        MIXER_WRITE(SOUND_MIXER_RECLEV)
 1059 #define SOUND_MIXER_WRITE_IGAIN         MIXER_WRITE(SOUND_MIXER_IGAIN)
 1060 #define SOUND_MIXER_WRITE_OGAIN         MIXER_WRITE(SOUND_MIXER_OGAIN)
 1061 #define SOUND_MIXER_WRITE_LINE1         MIXER_WRITE(SOUND_MIXER_LINE1)
 1062 #define SOUND_MIXER_WRITE_LINE2         MIXER_WRITE(SOUND_MIXER_LINE2)
 1063 #define SOUND_MIXER_WRITE_LINE3         MIXER_WRITE(SOUND_MIXER_LINE3)
 1064 #define SOUND_MIXER_WRITE_DIGITAL1      MIXER_WRITE(SOUND_MIXER_DIGITAL1)
 1065 #define SOUND_MIXER_WRITE_DIGITAL2      MIXER_WRITE(SOUND_MIXER_DIGITAL2)
 1066 #define SOUND_MIXER_WRITE_DIGITAL3      MIXER_WRITE(SOUND_MIXER_DIGITAL3)
 1067 #define SOUND_MIXER_WRITE_PHONEIN       MIXER_WRITE(SOUND_MIXER_PHONEIN)
 1068 #define SOUND_MIXER_WRITE_PHONEOUT      MIXER_WRITE(SOUND_MIXER_PHONEOUT)
 1069 #define SOUND_MIXER_WRITE_RADIO         MIXER_WRITE(SOUND_MIXER_RADIO)
 1070 #define SOUND_MIXER_WRITE_VIDEO         MIXER_WRITE(SOUND_MIXER_VIDEO)
 1071 #define SOUND_MIXER_WRITE_MONITOR       MIXER_WRITE(SOUND_MIXER_MONITOR)
 1072 
 1073 #define SOUND_MIXER_WRITE_MUTE          MIXER_WRITE(SOUND_MIXER_MUTE)
 1074 #define SOUND_MIXER_WRITE_ENHANCE       MIXER_WRITE(SOUND_MIXER_ENHANCE)
 1075 #define SOUND_MIXER_WRITE_LOUD          MIXER_WRITE(SOUND_MIXER_LOUD)
 1076 
 1077 #define SOUND_MIXER_WRITE_RECSRC        MIXER_WRITE(SOUND_MIXER_RECSRC)
 1078 
 1079 typedef struct mixer_info {
 1080   char id[16];
 1081   char name[32];
 1082   int  modify_counter;
 1083   int fillers[10];
 1084 } mixer_info;
 1085 
 1086 #define SOUND_MIXER_INFO                _IOR('M', 101, mixer_info)
 1087 
 1088 #define LEFT_CHN        0
 1089 #define RIGHT_CHN       1
 1090 
 1091 /*
 1092  * Level 2 event types for /dev/sequencer
 1093  */
 1094 
 1095 /*
 1096  * The 4 most significant bits of byte 0 specify the class of
 1097  * the event:
 1098  *
 1099  *      0x8X = system level events,
 1100  *      0x9X = device/port specific events, event[1] = device/port,
 1101  *              The last 4 bits give the subtype:
 1102  *                      0x02    = Channel event (event[3] = chn).
 1103  *                      0x01    = note event (event[4] = note).
 1104  *                      (0x01 is not used alone but always with bit 0x02).
 1105  *             event[2] = MIDI message code (0x80=note off etc.)
 1106  *
 1107  */
 1108 
 1109 #define EV_SEQ_LOCAL            0x80
 1110 #define EV_TIMING               0x81
 1111 #define EV_CHN_COMMON           0x92
 1112 #define EV_CHN_VOICE            0x93
 1113 #define EV_SYSEX                0x94
 1114 /*
 1115  * Event types 200 to 220 are reserved for application use.
 1116  * These numbers will not be used by the driver.
 1117  */
 1118 
 1119 /*
 1120  * Events for event type EV_CHN_VOICE
 1121  */
 1122 
 1123 #define MIDI_NOTEOFF            0x80
 1124 #define MIDI_NOTEON             0x90
 1125 #define MIDI_KEY_PRESSURE       0xA0
 1126 
 1127 /*
 1128  * Events for event type EV_CHN_COMMON
 1129  */
 1130 
 1131 #define MIDI_CTL_CHANGE         0xB0
 1132 #define MIDI_PGM_CHANGE         0xC0
 1133 #define MIDI_CHN_PRESSURE       0xD0
 1134 #define MIDI_PITCH_BEND         0xE0
 1135 
 1136 #define MIDI_SYSTEM_PREFIX      0xF0
 1137 
 1138 /*
 1139  * Timer event types
 1140  */
 1141 #define TMR_WAIT_REL            1       /* Time relative to the prev time */
 1142 #define TMR_WAIT_ABS            2       /* Absolute time since TMR_START */
 1143 #define TMR_STOP                3
 1144 #define TMR_START               4
 1145 #define TMR_CONTINUE            5
 1146 #define TMR_TEMPO               6
 1147 #define TMR_ECHO                8
 1148 #define TMR_CLOCK               9       /* MIDI clock */
 1149 #define TMR_SPP                 10      /* Song position pointer */
 1150 #define TMR_TIMESIG             11      /* Time signature */
 1151 
 1152 /*
 1153  *      Local event types
 1154  */
 1155 #define LOCL_STARTAUDIO         1
 1156 
 1157 #if (!defined(_KERNEL) && !defined(INKERNEL)) || defined(USE_SEQ_MACROS)
 1158 /*
 1159  *      Some convenience macros to simplify programming of the
 1160  *      /dev/sequencer interface
 1161  *
 1162  *      These macros define the API which should be used when possible.
 1163  */
 1164 
 1165 #ifndef USE_SIMPLE_MACROS
 1166 void seqbuf_dump(void); /* This function must be provided by programs */
 1167 
 1168 /* Sample seqbuf_dump() implementation:
 1169  *
 1170  *      SEQ_DEFINEBUF (2048);   -- Defines a buffer for 2048 bytes
 1171  *
 1172  *      int seqfd;              -- The file descriptor for /dev/sequencer.
 1173  *
 1174  *      void
 1175  *      seqbuf_dump ()
 1176  *      {
 1177  *        if (_seqbufptr)
 1178  *          if (write (seqfd, _seqbuf, _seqbufptr) == -1)
 1179  *            {
 1180  *              perror ("write /dev/sequencer");
 1181  *              exit (-1);
 1182  *            }
 1183  *        _seqbufptr = 0;
 1184  *      }
 1185  */
 1186 
 1187 #define SEQ_DEFINEBUF(len)              \
 1188         u_char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
 1189 #define SEQ_USE_EXTBUF()                \
 1190         extern u_char _seqbuf[]; \
 1191         extern int _seqbuflen;extern int _seqbufptr
 1192 #define SEQ_DECLAREBUF()                SEQ_USE_EXTBUF()
 1193 #define SEQ_PM_DEFINES                  struct patmgr_info _pm_info
 1194 #define _SEQ_NEEDBUF(len)               \
 1195         if ((_seqbufptr+(len)) > _seqbuflen) \
 1196                 seqbuf_dump()
 1197 #define _SEQ_ADVBUF(len)                _seqbufptr += len
 1198 #define SEQ_DUMPBUF                     seqbuf_dump
 1199 #else
 1200 /*
 1201  * This variation of the sequencer macros is used just to format one event
 1202  * using fixed buffer.
 1203  *
 1204  * The program using the macro library must define the following macros before
 1205  * using this library.
 1206  *
 1207  * #define _seqbuf               name of the buffer (u_char[])
 1208  * #define _SEQ_ADVBUF(len)      If the applic needs to know the exact
 1209  *                               size of the event, this macro can be used.
 1210  *                               Otherwise this must be defined as empty.
 1211  * #define _seqbufptr            Define the name of index variable or 0 if
 1212  *                               not required.
 1213  */
 1214 #define _SEQ_NEEDBUF(len)       /* empty */
 1215 #endif
 1216 
 1217 #define PM_LOAD_PATCH(dev, bank, pgm)   \
 1218         (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
 1219         _pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
 1220         _pm_info.parm1 = bank, _pm_info.parm2 = 1, \
 1221         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
 1222 #define PM_LOAD_PATCHES(dev, bank, pgm) \
 1223         (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
 1224         _pm_info.device=dev, bcopy( pgm, _pm_info.data.data8,  128), \
 1225         _pm_info.parm1 = bank, _pm_info.parm2 = 128, \
 1226         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
 1227 
 1228 #define SEQ_VOLUME_MODE(dev, mode)      { \
 1229         _SEQ_NEEDBUF(8);\
 1230         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
 1231         _seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
 1232         _seqbuf[_seqbufptr+2] = (dev);\
 1233         _seqbuf[_seqbufptr+3] = (mode);\
 1234         _seqbuf[_seqbufptr+4] = 0;\
 1235         _seqbuf[_seqbufptr+5] = 0;\
 1236         _seqbuf[_seqbufptr+6] = 0;\
 1237         _seqbuf[_seqbufptr+7] = 0;\
 1238         _SEQ_ADVBUF(8);}
 1239 
 1240 /*
 1241  * Midi voice messages
 1242  */
 1243 
 1244 #define _CHN_VOICE(dev, event, chn, note, parm)  { \
 1245         _SEQ_NEEDBUF(8);\
 1246         _seqbuf[_seqbufptr] = EV_CHN_VOICE;\
 1247         _seqbuf[_seqbufptr+1] = (dev);\
 1248         _seqbuf[_seqbufptr+2] = (event);\
 1249         _seqbuf[_seqbufptr+3] = (chn);\
 1250         _seqbuf[_seqbufptr+4] = (note);\
 1251         _seqbuf[_seqbufptr+5] = (parm);\
 1252         _seqbuf[_seqbufptr+6] = (0);\
 1253         _seqbuf[_seqbufptr+7] = 0;\
 1254         _SEQ_ADVBUF(8);}
 1255 
 1256 #define SEQ_START_NOTE(dev, chn, note, vol) \
 1257                 _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
 1258 
 1259 #define SEQ_STOP_NOTE(dev, chn, note, vol) \
 1260                 _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
 1261 
 1262 #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
 1263                 _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
 1264 
 1265 /*
 1266  * Midi channel messages
 1267  */
 1268 
 1269 #define _CHN_COMMON(dev, event, chn, p1, p2, w14) { \
 1270         _SEQ_NEEDBUF(8);\
 1271         _seqbuf[_seqbufptr] = EV_CHN_COMMON;\
 1272         _seqbuf[_seqbufptr+1] = (dev);\
 1273         _seqbuf[_seqbufptr+2] = (event);\
 1274         _seqbuf[_seqbufptr+3] = (chn);\
 1275         _seqbuf[_seqbufptr+4] = (p1);\
 1276         _seqbuf[_seqbufptr+5] = (p2);\
 1277         *(short *)&_seqbuf[_seqbufptr+6] = (w14);\
 1278         _SEQ_ADVBUF(8);}
 1279 /*
 1280  * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
 1281  * sending any MIDI bytes but it's absolutely not possible. Trying to do
 1282  * so _will_ cause problems with MPU401 intelligent mode).
 1283  *
 1284  * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be
 1285  * sent by calling SEQ_SYSEX() several times (there must be no other events
 1286  * between them). First sysex fragment must have 0xf0 in the first byte
 1287  * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
 1288  * between these sysex start and end markers cannot be larger than 0x7f. Also
 1289  * lengths of each fragments (except the last one) must be 6.
 1290  *
 1291  * Breaking the above rules may work with some MIDI ports but is likely to
 1292  * cause fatal problems with some other devices (such as MPU401).
 1293  */
 1294 #define SEQ_SYSEX(dev, buf, len) { \
 1295         int i, l=(len); if (l>6)l=6;\
 1296         _SEQ_NEEDBUF(8);\
 1297         _seqbuf[_seqbufptr] = EV_SYSEX;\
 1298         for(i=0;i<l;i++)_seqbuf[_seqbufptr+i+1] = (buf)[i];\
 1299         for(i=l;i<6;i++)_seqbuf[_seqbufptr+i+1] = 0xff;\
 1300         _SEQ_ADVBUF(8);}
 1301 
 1302 #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
 1303         _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
 1304 
 1305 #define SEQ_SET_PATCH(dev, chn, patch) \
 1306         _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
 1307 
 1308 #define SEQ_CONTROL(dev, chn, controller, value) \
 1309         _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
 1310 
 1311 #define SEQ_BENDER(dev, chn, value) \
 1312         _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
 1313 
 1314 
 1315 #define SEQ_V2_X_CONTROL(dev, voice, controller, value) { \
 1316         _SEQ_NEEDBUF(8);\
 1317         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
 1318         _seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
 1319         _seqbuf[_seqbufptr+2] = (dev);\
 1320         _seqbuf[_seqbufptr+3] = (voice);\
 1321         _seqbuf[_seqbufptr+4] = (controller);\
 1322         *(short *)&_seqbuf[_seqbufptr+5] = (value);\
 1323         _seqbuf[_seqbufptr+7] = 0;\
 1324         _SEQ_ADVBUF(8);}
 1325 
 1326 /*
 1327  * The following 5 macros are incorrectly implemented and obsolete.
 1328  * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
 1329  */
 1330 
 1331 #define SEQ_PITCHBEND(dev, voice, value) \
 1332         SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
 1333 #define SEQ_BENDER_RANGE(dev, voice, value) \
 1334         SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
 1335 #define SEQ_EXPRESSION(dev, voice, value) \
 1336         SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
 1337 #define SEQ_MAIN_VOLUME(dev, voice, value) \
 1338         SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
 1339 #define SEQ_PANNING(dev, voice, pos) \
 1340         SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
 1341 
 1342 /*
 1343  * Timing and syncronization macros
 1344  */
 1345 
 1346 #define _TIMER_EVENT(ev, parm)          { \
 1347         _SEQ_NEEDBUF(8);\
 1348         _seqbuf[_seqbufptr+0] = EV_TIMING; \
 1349         _seqbuf[_seqbufptr+1] = (ev); \
 1350         _seqbuf[_seqbufptr+2] = 0;\
 1351         _seqbuf[_seqbufptr+3] = 0;\
 1352         *(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
 1353         _SEQ_ADVBUF(8); \
 1354         }
 1355 
 1356 #define SEQ_START_TIMER()               _TIMER_EVENT(TMR_START, 0)
 1357 #define SEQ_STOP_TIMER()                _TIMER_EVENT(TMR_STOP, 0)
 1358 #define SEQ_CONTINUE_TIMER()            _TIMER_EVENT(TMR_CONTINUE, 0)
 1359 #define SEQ_WAIT_TIME(ticks)            _TIMER_EVENT(TMR_WAIT_ABS, ticks)
 1360 #define SEQ_DELTA_TIME(ticks)           _TIMER_EVENT(TMR_WAIT_REL, ticks)
 1361 #define SEQ_ECHO_BACK(key)              _TIMER_EVENT(TMR_ECHO, key)
 1362 #define SEQ_SET_TEMPO(value)            _TIMER_EVENT(TMR_TEMPO, value)
 1363 #define SEQ_SONGPOS(pos)                _TIMER_EVENT(TMR_SPP, pos)
 1364 #define SEQ_TIME_SIGNATURE(sig)         _TIMER_EVENT(TMR_TIMESIG, sig)
 1365 
 1366 /*
 1367  * Local control events
 1368  */
 1369 
 1370 #define _LOCAL_EVENT(ev, parm)          { \
 1371         _SEQ_NEEDBUF(8);\
 1372         _seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
 1373         _seqbuf[_seqbufptr+1] = (ev); \
 1374         _seqbuf[_seqbufptr+2] = 0;\
 1375         _seqbuf[_seqbufptr+3] = 0;\
 1376         *(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
 1377         _SEQ_ADVBUF(8); \
 1378         }
 1379 
 1380 #define SEQ_PLAYAUDIO(devmask)          _LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
 1381 /*
 1382  * Events for the level 1 interface only
 1383  */
 1384 
 1385 #define SEQ_MIDIOUT(device, byte)       { \
 1386         _SEQ_NEEDBUF(4);\
 1387         _seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
 1388         _seqbuf[_seqbufptr+1] = (byte);\
 1389         _seqbuf[_seqbufptr+2] = (device);\
 1390         _seqbuf[_seqbufptr+3] = 0;\
 1391         _SEQ_ADVBUF(4);}
 1392 
 1393 /*
 1394  * Patch loading.
 1395  */
 1396 #define SEQ_WRPATCH(patchx, len)        { \
 1397         if (_seqbufptr) seqbuf_dump(); \
 1398         if (write(seqfd, (char*)(patchx), len)==-1) \
 1399            perror("Write patch: /dev/sequencer"); \
 1400         }
 1401 
 1402 #define SEQ_WRPATCH2(patchx, len)       \
 1403         ( seqbuf_dump(), write(seqfd, (char*)(patchx), len) )
 1404 
 1405 #endif
 1406 
 1407 /*
 1408  * Here I have moved all the aliases for ioctl names.
 1409  */
 1410 
 1411 #define SNDCTL_DSP_SAMPLESIZE   SNDCTL_DSP_SETFMT
 1412 #define SOUND_PCM_WRITE_BITS    SNDCTL_DSP_SETFMT
 1413 #define SOUND_PCM_SETFMT        SNDCTL_DSP_SETFMT
 1414 
 1415 #define SOUND_PCM_WRITE_RATE    SNDCTL_DSP_SPEED
 1416 #define SOUND_PCM_POST          SNDCTL_DSP_POST
 1417 #define SOUND_PCM_RESET         SNDCTL_DSP_RESET
 1418 #define SOUND_PCM_SYNC          SNDCTL_DSP_SYNC
 1419 #define SOUND_PCM_SUBDIVIDE     SNDCTL_DSP_SUBDIVIDE
 1420 #define SOUND_PCM_SETFRAGMENT   SNDCTL_DSP_SETFRAGMENT
 1421 #define SOUND_PCM_GETFMTS       SNDCTL_DSP_GETFMTS
 1422 #define SOUND_PCM_GETOSPACE     SNDCTL_DSP_GETOSPACE
 1423 #define SOUND_PCM_GETISPACE     SNDCTL_DSP_GETISPACE
 1424 #define SOUND_PCM_NONBLOCK      SNDCTL_DSP_NONBLOCK
 1425 #define SOUND_PCM_GETCAPS       SNDCTL_DSP_GETCAPS
 1426 #define SOUND_PCM_GETTRIGGER    SNDCTL_DSP_GETTRIGGER
 1427 #define SOUND_PCM_SETTRIGGER    SNDCTL_DSP_SETTRIGGER
 1428 #define SOUND_PCM_SETSYNCRO     SNDCTL_DSP_SETSYNCRO
 1429 #define SOUND_PCM_GETIPTR       SNDCTL_DSP_GETIPTR
 1430 #define SOUND_PCM_GETOPTR       SNDCTL_DSP_GETOPTR
 1431 #define SOUND_PCM_MAPINBUF      SNDCTL_DSP_MAPINBUF
 1432 #define SOUND_PCM_MAPOUTBUF     SNDCTL_DSP_MAPOUTBUF
 1433 
 1434 #endif  /* !_SYS_SOUNDCARD_H_ */

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