| #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 |
