root/include/linux/ultrasound.h

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INCLUDED FROM


   1 #ifndef _ULTRASOUND_H_
   2 #define _ULTRASOUND_H_
   3 /*
   4  *      ultrasound.h - Macros for programming the Gravis Ultrasound
   5  *                      These macros are extremely device dependent
   6  *                      and not portable.
   7  */
   8 /*
   9  * Copyright by Hannu Savolainen 1993-1996
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions are
  13  * met: 1. Redistributions of source code must retain the above copyright
  14  * notice, this list of conditions and the following disclaimer. 2.
  15  * Redistributions in binary form must reproduce the above copyright notice,
  16  * this list of conditions and the following disclaimer in the documentation
  17  * and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
  20  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  25  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  26  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31 
  32 
  33 /*
  34  *      Private events for Gravis Ultrasound (GUS)
  35  *
  36  *      Format:
  37  *              byte 0          - SEQ_PRIVATE (0xfe)
  38  *              byte 1          - Synthesizer device number (0-N)
  39  *              byte 2          - Command (see below)
  40  *              byte 3          - Voice number (0-31)
  41  *              bytes 4 and 5   - parameter P1 (unsigned short)
  42  *              bytes 6 and 7   - parameter P2 (unsigned short)
  43  *
  44  *      Commands:
  45  *              Each command affects one voice defined in byte 3.
  46  *              Unused parameters (P1 and/or P2 *MUST* be initialized to zero).
  47  *              _GUS_NUMVOICES  - Sets max. number of concurrent voices (P1=14-31, default 16)
  48  *              _GUS_VOICESAMPLE- ************ OBSOLETE *************
  49  *              _GUS_VOICEON    - Starts voice (P1=voice mode)
  50  *              _GUS_VOICEOFF   - Stops voice (no parameters)
  51  *              _GUS_VOICEFADE  - Stops the voice smoothly.
  52  *              _GUS_VOICEMODE  - Alters the voice mode, don't start or stop voice (P1=voice mode)
  53  *              _GUS_VOICEBALA  - Sets voice balence (P1, 0=left, 7=middle and 15=right, default 7)
  54  *              _GUS_VOICEFREQ  - Sets voice (sample) playback frequency (P1=Hz)
  55  *              _GUS_VOICEVOL   - Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off)
  56  *              _GUS_VOICEVOL2  - Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off)
  57  *                                (Like GUS_VOICEVOL but doesn't change the hw
  58  *                                volume. It just updates volume in the voice table).
  59  *
  60  *              _GUS_RAMPRANGE  - Sets limits for volume ramping (P1=low volume, P2=high volume)
  61  *              _GUS_RAMPRATE   - Sets the speed for volume ramping (P1=scale, P2=rate)
  62  *              _GUS_RAMPMODE   - Sets the volume ramping mode (P1=ramping mode)
  63  *              _GUS_RAMPON     - Starts volume ramping (no parameters)
  64  *              _GUS_RAMPOFF    - Stops volume ramping (no parameters)
  65  *              _GUS_VOLUME_SCALE - Changes the volume calculation constants
  66  *                                for all voices.
  67  */
  68 
  69 #define _GUS_NUMVOICES          0x00
  70 #define _GUS_VOICESAMPLE        0x01    /* OBSOLETE */
  71 #define _GUS_VOICEON            0x02
  72 #define _GUS_VOICEOFF           0x03
  73 #define _GUS_VOICEMODE          0x04
  74 #define _GUS_VOICEBALA          0x05
  75 #define _GUS_VOICEFREQ          0x06
  76 #define _GUS_VOICEVOL           0x07
  77 #define _GUS_RAMPRANGE          0x08
  78 #define _GUS_RAMPRATE           0x09
  79 #define _GUS_RAMPMODE           0x0a
  80 #define _GUS_RAMPON             0x0b
  81 #define _GUS_RAMPOFF            0x0c
  82 #define _GUS_VOICEFADE          0x0d
  83 #define _GUS_VOLUME_SCALE       0x0e
  84 #define _GUS_VOICEVOL2          0x0f
  85 #define _GUS_VOICE_POS          0x10
  86 
  87 /*
  88  *      GUS API macros
  89  */
  90 
  91 #define _GUS_CMD(chn, voice, cmd, p1, p2) \
  92                                         {_SEQ_NEEDBUF(8); _seqbuf[_seqbufptr] = SEQ_PRIVATE;\
  93                                         _seqbuf[_seqbufptr+1] = (chn); _seqbuf[_seqbufptr+2] = cmd;\
  94                                         _seqbuf[_seqbufptr+3] = voice;\
  95                                         *(unsigned short*)&_seqbuf[_seqbufptr+4] = p1;\
  96                                         *(unsigned short*)&_seqbuf[_seqbufptr+6] = p2;\
  97                                         _SEQ_ADVBUF(8);}
  98 
  99 #define GUS_NUMVOICES(chn, p1)                  _GUS_CMD(chn, 0, _GUS_NUMVOICES, (p1), 0)
 100 #define GUS_VOICESAMPLE(chn, voice, p1)         _GUS_CMD(chn, voice, _GUS_VOICESAMPLE, (p1), 0) /* OBSOLETE */
 101 #define GUS_VOICEON(chn, voice, p1)             _GUS_CMD(chn, voice, _GUS_VOICEON, (p1), 0)
 102 #define GUS_VOICEOFF(chn, voice)                _GUS_CMD(chn, voice, _GUS_VOICEOFF, 0, 0)
 103 #define GUS_VOICEFADE(chn, voice)               _GUS_CMD(chn, voice, _GUS_VOICEFADE, 0, 0)
 104 #define GUS_VOICEMODE(chn, voice, p1)           _GUS_CMD(chn, voice, _GUS_VOICEMODE, (p1), 0)
 105 #define GUS_VOICEBALA(chn, voice, p1)           _GUS_CMD(chn, voice, _GUS_VOICEBALA, (p1), 0)
 106 #define GUS_VOICEFREQ(chn, voice, p)            _GUS_CMD(chn, voice, _GUS_VOICEFREQ, \
 107                                                         (p) & 0xffff, ((p) >> 16) & 0xffff)
 108 #define GUS_VOICEVOL(chn, voice, p1)            _GUS_CMD(chn, voice, _GUS_VOICEVOL, (p1), 0)
 109 #define GUS_VOICEVOL2(chn, voice, p1)           _GUS_CMD(chn, voice, _GUS_VOICEVOL2, (p1), 0)
 110 #define GUS_RAMPRANGE(chn, voice, low, high)    _GUS_CMD(chn, voice, _GUS_RAMPRANGE, (low), (high))
 111 #define GUS_RAMPRATE(chn, voice, p1, p2)        _GUS_CMD(chn, voice, _GUS_RAMPRATE, (p1), (p2))
 112 #define GUS_RAMPMODE(chn, voice, p1)            _GUS_CMD(chn, voice, _GUS_RAMPMODE, (p1), 0)
 113 #define GUS_RAMPON(chn, voice, p1)              _GUS_CMD(chn, voice, _GUS_RAMPON, (p1), 0)
 114 #define GUS_RAMPOFF(chn, voice)                 _GUS_CMD(chn, voice, _GUS_RAMPOFF, 0, 0)
 115 #define GUS_VOLUME_SCALE(chn, voice, p1, p2)    _GUS_CMD(chn, voice, _GUS_VOLUME_SCALE, (p1), (p2))
 116 #define GUS_VOICE_POS(chn, voice, p)            _GUS_CMD(chn, voice, _GUS_VOICE_POS, \
 117                                                         (p) & 0xffff, ((p) >> 16) & 0xffff)
 118 
 119 #endif

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