105 lines · c
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _ULTRASOUND_H_3#define _ULTRASOUND_H_4/*5 * ultrasound.h - Macros for programming the Gravis Ultrasound6 * These macros are extremely device dependent7 * and not portable.8 */9/*10 * Copyright (C) by Hannu Savolainen 1993-199711 *12 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)13 * Version 2 (June 1991). See the "COPYING" file distributed with this software14 * for more info.15 */16 17 18/*19 * Private events for Gravis Ultrasound (GUS)20 *21 * Format:22 * byte 0 - SEQ_PRIVATE (0xfe)23 * byte 1 - Synthesizer device number (0-N)24 * byte 2 - Command (see below)25 * byte 3 - Voice number (0-31)26 * bytes 4 and 5 - parameter P1 (unsigned short)27 * bytes 6 and 7 - parameter P2 (unsigned short)28 *29 * Commands:30 * Each command affects one voice defined in byte 3.31 * Unused parameters (P1 and/or P2 *MUST* be initialized to zero).32 * _GUS_NUMVOICES - Sets max. number of concurrent voices (P1=14-31, default 16)33 * _GUS_VOICESAMPLE- ************ OBSOLETE *************34 * _GUS_VOICEON - Starts voice (P1=voice mode)35 * _GUS_VOICEOFF - Stops voice (no parameters)36 * _GUS_VOICEFADE - Stops the voice smoothly.37 * _GUS_VOICEMODE - Alters the voice mode, don't start or stop voice (P1=voice mode)38 * _GUS_VOICEBALA - Sets voice balance (P1, 0=left, 7=middle and 15=right, default 7)39 * _GUS_VOICEFREQ - Sets voice (sample) playback frequency (P1=Hz)40 * _GUS_VOICEVOL - Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off)41 * _GUS_VOICEVOL2 - Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off)42 * (Like GUS_VOICEVOL but doesn't change the hw43 * volume. It just updates volume in the voice table).44 *45 * _GUS_RAMPRANGE - Sets limits for volume ramping (P1=low volume, P2=high volume)46 * _GUS_RAMPRATE - Sets the speed for volume ramping (P1=scale, P2=rate)47 * _GUS_RAMPMODE - Sets the volume ramping mode (P1=ramping mode)48 * _GUS_RAMPON - Starts volume ramping (no parameters)49 * _GUS_RAMPOFF - Stops volume ramping (no parameters)50 * _GUS_VOLUME_SCALE - Changes the volume calculation constants51 * for all voices.52 */53 54#define _GUS_NUMVOICES 0x0055#define _GUS_VOICESAMPLE 0x01 /* OBSOLETE */56#define _GUS_VOICEON 0x0257#define _GUS_VOICEOFF 0x0358#define _GUS_VOICEMODE 0x0459#define _GUS_VOICEBALA 0x0560#define _GUS_VOICEFREQ 0x0661#define _GUS_VOICEVOL 0x0762#define _GUS_RAMPRANGE 0x0863#define _GUS_RAMPRATE 0x0964#define _GUS_RAMPMODE 0x0a65#define _GUS_RAMPON 0x0b66#define _GUS_RAMPOFF 0x0c67#define _GUS_VOICEFADE 0x0d68#define _GUS_VOLUME_SCALE 0x0e69#define _GUS_VOICEVOL2 0x0f70#define _GUS_VOICE_POS 0x1071 72/*73 * GUS API macros74 */75 76#define _GUS_CMD(chn, voice, cmd, p1, p2) \77 {_SEQ_NEEDBUF(8); _seqbuf[_seqbufptr] = SEQ_PRIVATE;\78 _seqbuf[_seqbufptr+1] = (chn); _seqbuf[_seqbufptr+2] = cmd;\79 _seqbuf[_seqbufptr+3] = voice;\80 *(unsigned short*)&_seqbuf[_seqbufptr+4] = p1;\81 *(unsigned short*)&_seqbuf[_seqbufptr+6] = p2;\82 _SEQ_ADVBUF(8);}83 84#define GUS_NUMVOICES(chn, p1) _GUS_CMD(chn, 0, _GUS_NUMVOICES, (p1), 0)85#define GUS_VOICESAMPLE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICESAMPLE, (p1), 0) /* OBSOLETE */86#define GUS_VOICEON(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEON, (p1), 0)87#define GUS_VOICEOFF(chn, voice) _GUS_CMD(chn, voice, _GUS_VOICEOFF, 0, 0)88#define GUS_VOICEFADE(chn, voice) _GUS_CMD(chn, voice, _GUS_VOICEFADE, 0, 0)89#define GUS_VOICEMODE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEMODE, (p1), 0)90#define GUS_VOICEBALA(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEBALA, (p1), 0)91#define GUS_VOICEFREQ(chn, voice, p) _GUS_CMD(chn, voice, _GUS_VOICEFREQ, \92 (p) & 0xffff, ((p) >> 16) & 0xffff)93#define GUS_VOICEVOL(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEVOL, (p1), 0)94#define GUS_VOICEVOL2(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEVOL2, (p1), 0)95#define GUS_RAMPRANGE(chn, voice, low, high) _GUS_CMD(chn, voice, _GUS_RAMPRANGE, (low), (high))96#define GUS_RAMPRATE(chn, voice, p1, p2) _GUS_CMD(chn, voice, _GUS_RAMPRATE, (p1), (p2))97#define GUS_RAMPMODE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_RAMPMODE, (p1), 0)98#define GUS_RAMPON(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_RAMPON, (p1), 0)99#define GUS_RAMPOFF(chn, voice) _GUS_CMD(chn, voice, _GUS_RAMPOFF, 0, 0)100#define GUS_VOLUME_SCALE(chn, voice, p1, p2) _GUS_CMD(chn, voice, _GUS_VOLUME_SCALE, (p1), (p2))101#define GUS_VOICE_POS(chn, voice, p) _GUS_CMD(chn, voice, _GUS_VOICE_POS, \102 (p) & 0xffff, ((p) >> 16) & 0xffff)103 104#endif105