uapi/linux/ultrasound.h

1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
5  *	ultrasound.h - Macros for programming the Gravis Ultrasound
10  * Copyright (C) by Hannu Savolainen 1993-1997
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)
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)
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 constants