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 * Private events for Gravis Ultrasound (GUS) 34 * 35 * Format: 36 * byte 0 - SEQ_PRIVATE (0xfe) 37 * byte 1 - Synthesizer device number (0-N) 38 * byte 2 - Command (see below) 39 * byte 3 - Voice number (0-31) 40 * bytes 4 and 5 - parameter P1 (unsigned short) 41 * bytes 6 and 7 - parameter P2 (unsigned short) 42 * 43 * Commands: 44 * Each command affects one voice defined in byte 3. 45 * Unused parameters (P1 and/or P2 *MUST* be initialized to zero). 46 * _GUS_NUMVOICES - Sets max. number of concurrent voices (P1=14-31, default 16) 47 * _GUS_VOICESAMPLE- ************ OBSOLETE ************* 48 * _GUS_VOICEON - Starts voice (P1=voice mode) 49 * _GUS_VOICEOFF - Stops voice (no parameters) 50 * _GUS_VOICEFADE - Stops the voice smoothly. 51 * _GUS_VOICEMODE - Alters the voice mode, don't start or stop voice (P1=voice mode) 52 * _GUS_VOICEBALA - Sets voice balence (P1, 0=left, 7=middle and 15=right, default 7) 53 * _GUS_VOICEFREQ - Sets voice (sample) playback frequency (P1=Hz) 54 * _GUS_VOICEVOL - Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off) 55 * _GUS_VOICEVOL2 - Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off) 56 * (Like GUS_VOICEVOL but doesn't change the hw 57 * volume. It just updates volume in the voice table). 58 * 59 * _GUS_RAMPRANGE - Sets limits for volume ramping (P1=low volume, P2=high volume) 60 * _GUS_RAMPRATE - Sets the speed for volume ramping (P1=scale, P2=rate) 61 * _GUS_RAMPMODE - Sets the volume ramping mode (P1=ramping mode) 62 * _GUS_RAMPON - Starts volume ramping (no parameters) 63 * _GUS_RAMPOFF - Stops volume ramping (no parameters) 64 * _GUS_VOLUME_SCALE - Changes the volume calculation constants 65 * for all voices. 66 */ 67 68 #define _GUS_NUMVOICES 0x00 69 #define _GUS_VOICESAMPLE 0x01 /* OBSOLETE */ 70 #define _GUS_VOICEON 0x02 71 #define _GUS_VOICEOFF 0x03 72 #define _GUS_VOICEMODE 0x04 73 #define _GUS_VOICEBALA 0x05 74 #define _GUS_VOICEFREQ 0x06 75 #define _GUS_VOICEVOL 0x07 76 #define _GUS_RAMPRANGE 0x08 77 #define _GUS_RAMPRATE 0x09 78 #define _GUS_RAMPMODE 0x0a 79 #define _GUS_RAMPON 0x0b 80 #define _GUS_RAMPOFF 0x0c 81 #define _GUS_VOICEFADE 0x0d 82 #define _GUS_VOLUME_SCALE 0x0e 83 #define _GUS_VOICEVOL2 0x0f 84 #define _GUS_VOICE_POS 0x10 85 86 /* 87 * GUS API macros 88 */ 89 90 #define _GUS_CMD(chn, voice, cmd, p1, p2) \ 91 {_SEQ_NEEDBUF(8); _seqbuf[_seqbufptr] = SEQ_PRIVATE;\ 92 _seqbuf[_seqbufptr+1] = (chn); _seqbuf[_seqbufptr+2] = cmd;\ 93 _seqbuf[_seqbufptr+3] = voice;\ 94 *(unsigned short*)&_seqbuf[_seqbufptr+4] = p1;\ 95 *(unsigned short*)&_seqbuf[_seqbufptr+6] = p2;\ 96 _SEQ_ADVBUF(8);} 97 98 #define GUS_NUMVOICES(chn, p1) _GUS_CMD(chn, 0, _GUS_NUMVOICES, (p1), 0) 99 #define GUS_VOICESAMPLE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICESAMPLE, (p1), 0) /* OBSOLETE */ 100 #define GUS_VOICEON(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEON, (p1), 0) 101 #define GUS_VOICEOFF(chn, voice) _GUS_CMD(chn, voice, _GUS_VOICEOFF, 0, 0) 102 #define GUS_VOICEFADE(chn, voice) _GUS_CMD(chn, voice, _GUS_VOICEFADE, 0, 0) 103 #define GUS_VOICEMODE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEMODE, (p1), 0) 104 #define GUS_VOICEBALA(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEBALA, (p1), 0) 105 #define GUS_VOICEFREQ(chn, voice, p) _GUS_CMD(chn, voice, _GUS_VOICEFREQ, \ 106 (p) & 0xffff, ((p) >> 16) & 0xffff) 107 #define GUS_VOICEVOL(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEVOL, (p1), 0) 108 #define GUS_VOICEVOL2(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEVOL2, (p1), 0) 109 #define GUS_RAMPRANGE(chn, voice, low, high) _GUS_CMD(chn, voice, _GUS_RAMPRANGE, (low), (high)) 110 #define GUS_RAMPRATE(chn, voice, p1, p2) _GUS_CMD(chn, voice, _GUS_RAMPRATE, (p1), (p2)) 111 #define GUS_RAMPMODE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_RAMPMODE, (p1), 0) 112 #define GUS_RAMPON(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_RAMPON, (p1), 0) 113 #define GUS_RAMPOFF(chn, voice) _GUS_CMD(chn, voice, _GUS_RAMPOFF, 0, 0) 114 #define GUS_VOLUME_SCALE(chn, voice, p1, p2) _GUS_CMD(chn, voice, _GUS_VOLUME_SCALE, (p1), (p2)) 115 #define GUS_VOICE_POS(chn, voice, p) _GUS_CMD(chn, voice, _GUS_VOICE_POS, \ 116 (p) & 0xffff, ((p) >> 16) & 0xffff) 117 118 #endif