#ifndef _ULTRASOUND_H_#define _ULTRASOUND_H_/* *	ultrasound.h - Macros for programming the Gravis Ultrasound *			These macros are extremely device dependent *			and not portable. *//* * Copyright (C) by Hannu Savolainen 1993-1997 * * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) * Version 2 (June 1991). See the "COPYING" file distributed with this software * for more info. *//* *	Private events for Gravis Ultrasound (GUS) * *	Format: *		byte 0 		- SEQ_PRIVATE (0xfe) *		byte 1 		- Synthesizer device number (0-N) *		byte 2 		- Command (see below) *		byte 3 		- Voice number (0-31) *		bytes 4 and 5	- parameter P1 (unsigned short) *		bytes 6 and 7	- parameter P2 (unsigned short) * *	Commands: *		Each command affects one voice defined in byte 3. *		Unused parameters (P1 and/or P2 *MUST* be initialized to zero). *		_GUS_NUMVOICES	- Sets max. number of concurrent voices (P1=14-31, default 16) *		_GUS_VOICESAMPLE- ************ OBSOLETE ************* *		_GUS_VOICEON	- Starts voice (P1=voice mode) *		_GUS_VOICEOFF	- Stops voice (no parameters) *		_GUS_VOICEFADE	- Stops the voice smoothly. *		_GUS_VOICEMODE	- Alters the voice mode, don't start or stop voice (P1=voice mode) *		_GUS_VOICEBALA	- Sets voice balence (P1, 0=left, 7=middle and 15=right, default 7) *		_GUS_VOICEFREQ	- Sets voice (sample) playback frequency (P1=Hz) *		_GUS_VOICEVOL	- Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off) *		_GUS_VOICEVOL2	- Sets voice volume (P1=volume, 0xfff=max, 0xeff=half, 0x000=off) *				  (Like GUS_VOICEVOL but doesn't change the hw *				  volume. It just updates volume in the voice table). * *		_GUS_RAMPRANGE	- Sets limits for volume ramping (P1=low volume, P2=high volume) *		_GUS_RAMPRATE	- Sets the speed for volume ramping (P1=scale, P2=rate) *		_GUS_RAMPMODE	- Sets the volume ramping mode (P1=ramping mode) *		_GUS_RAMPON	- Starts volume ramping (no parameters) *		_GUS_RAMPOFF	- Stops volume ramping (no parameters) *		_GUS_VOLUME_SCALE - Changes the volume calculation constants *				  for all voices. */#define _GUS_NUMVOICES		0x00#define _GUS_VOICESAMPLE	0x01	/* OBSOLETE */#define _GUS_VOICEON		0x02#define _GUS_VOICEOFF		0x03#define _GUS_VOICEMODE		0x04#define _GUS_VOICEBALA		0x05#define _GUS_VOICEFREQ		0x06#define _GUS_VOICEVOL		0x07#define _GUS_RAMPRANGE		0x08#define _GUS_RAMPRATE		0x09#define _GUS_RAMPMODE		0x0a#define _GUS_RAMPON		0x0b#define _GUS_RAMPOFF		0x0c#define _GUS_VOICEFADE		0x0d#define _GUS_VOLUME_SCALE	0x0e#define _GUS_VOICEVOL2		0x0f#define _GUS_VOICE_POS		0x10/* *	GUS API macros */#define _GUS_CMD(chn, voice, cmd, p1, p2) \					{_SEQ_NEEDBUF(8); _seqbuf[_seqbufptr] = SEQ_PRIVATE;\					_seqbuf[_seqbufptr+1] = (chn); _seqbuf[_seqbufptr+2] = cmd;\					_seqbuf[_seqbufptr+3] = voice;\					*(unsigned short*)&_seqbuf[_seqbufptr+4] = p1;\					*(unsigned short*)&_seqbuf[_seqbufptr+6] = p2;\					_SEQ_ADVBUF(8);}#define GUS_NUMVOICES(chn, p1)			_GUS_CMD(chn, 0, _GUS_NUMVOICES, (p1), 0)#define GUS_VOICESAMPLE(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_VOICESAMPLE, (p1), 0)	/* OBSOLETE */#define GUS_VOICEON(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_VOICEON, (p1), 0)#define GUS_VOICEOFF(chn, voice)		_GUS_CMD(chn, voice, _GUS_VOICEOFF, 0, 0)#define GUS_VOICEFADE(chn, voice)		_GUS_CMD(chn, voice, _GUS_VOICEFADE, 0, 0)#define GUS_VOICEMODE(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_VOICEMODE, (p1), 0)#define GUS_VOICEBALA(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_VOICEBALA, (p1), 0)#define GUS_VOICEFREQ(chn, voice, p)		_GUS_CMD(chn, voice, _GUS_VOICEFREQ, \							(p) & 0xffff, ((p) >> 16) & 0xffff)#define GUS_VOICEVOL(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_VOICEVOL, (p1), 0)#define GUS_VOICEVOL2(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_VOICEVOL2, (p1), 0)#define GUS_RAMPRANGE(chn, voice, low, high)	_GUS_CMD(chn, voice, _GUS_RAMPRANGE, (low), (high))#define GUS_RAMPRATE(chn, voice, p1, p2)	_GUS_CMD(chn, voice, _GUS_RAMPRATE, (p1), (p2))#define GUS_RAMPMODE(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_RAMPMODE, (p1), 0)#define GUS_RAMPON(chn, voice, p1)		_GUS_CMD(chn, voice, _GUS_RAMPON, (p1), 0)#define GUS_RAMPOFF(chn, voice)			_GUS_CMD(chn, voice, _GUS_RAMPOFF, 0, 0)#define GUS_VOLUME_SCALE(chn, voice, p1, p2)	_GUS_CMD(chn, voice, _GUS_VOLUME_SCALE, (p1), (p2))#define GUS_VOICE_POS(chn, voice, p)		_GUS_CMD(chn, voice, _GUS_VOICE_POS, \							(p) & 0xffff, ((p) >> 16) & 0xffff)#endif