146 lines
4.8 KiB
C
146 lines
4.8 KiB
C
/* $NetBSD: oplreg.h,v 1.3 1998/11/25 22:17:06 augustss Exp $ */
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/*
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@netbsd.org).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Offsets from base address */
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#define OPL_L 0
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#define OPL_R 2
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/* Offsets from base+[OPL_L|OPL_R] */
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#define OPL_STATUS 0
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#define OPL_STATUS_IRQ 0x80
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#define OPL_STATUS_FT1 0x40
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#define OPL_STATUS_FT2 0x20
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#define OPL_STATUS_MASK 0xE0
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#define OPL_ADDR 0
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#define OPL_DATA 1
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#define OPL_TEST 0x01
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#define OPL_ENABLE_WAVE_SELECT 0x20
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#define OPL_TIMER1 0x02
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#define OPL_TIMER2 0x03
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#define OPL_TIMER_CONTROL 0x04 /* Left */
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#define OPL_TIMER1_START 0x01
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#define OPL_TIMER2_START 0x02
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#define OPL_TIMER2_MASK 0x20
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#define OPL_TIMER1_MASK 0x40
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#define OPL_IRQ_RESET 0x80
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#define OPL_CONNECTION_SELECT 0x04 /* Right */
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#define OPL_NOCONNECTION 0x00
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#define OPL_R_4OP_0 0x01
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#define OPL_R_4OP_1 0x02
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#define OPL_R_4OP_2 0x04
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#define OPL_L_4OP_0 0x08
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#define OPL_L_4OP_1 0x10
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#define OPL_L_4OP_2 0x20
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#define OPL_MODE 0x05 /* Right */
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#define OPL3_ENABLE 0x01
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#define OPL4_ENABLE 0x02
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#define OPL_KBD_SPLIT 0x08 /* Left */
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#define OPL_KEYBOARD_SPLIT 0x40
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#define OPL_COMPOSITE_SINE_WAVE_MODE 0x80
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#define OPL_PERCUSSION 0xbd /* Left */
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#define OPL_NOPERCUSSION 0x00
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#define OPL_HIHAT 0x01
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#define OPL_CYMBAL 0x02
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#define OPL_TOMTOM 0x04
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#define OPL_SNAREDRUM 0x08
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#define OPL_BASSDRUM 0x10
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#define OPL_PERCUSSION_ENABLE 0x20
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#define OPL_VIBRATO_DEPTH 0x40
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#define OPL_TREMOLO_DEPTH 0x80
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/*
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* Offsets to the register banks for operators.
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*/
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/* AM/VIB/EG/KSR/Multiple (0x20 to 0x35) */
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#define OPL_AM_VIB 0x20
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#define OPL_KSR 0x10
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#define OPL_SUSTAIN 0x20
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#define OPL_VIBRATO 0x40
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#define OPL_TREMOLO 0x80
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#define OPL_MULTIPLE_MASK 0x0f
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/* KSL/Total level (0x40 to 0x55) */
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#define OPL_KSL_LEVEL 0x40
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#define OPL_KSL_MASK 0xc0 /* Envelope scaling bits */
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#define OPL_TOTAL_LEVEL_MASK 0x3f /* Strength (volume) of OP */
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/* Attack / Decay rate (0x60 to 0x75) */
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#define OPL_ATTACK_DECAY 0x60
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#define OPL_ATTACK_MASK 0xf0
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#define DECAY_MASK 0x0f
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/* Sustain level / Release rate (0x80 to 0x95) */
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#define OPL_SUSTAIN_RELEASE 0x80
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#define OPL_SUSTAIN_MASK 0xf0
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#define OPL_RELEASE_MASK 0x0f
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/* Wave select (0xE0 to 0xF5) */
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#define OPL_WAVE_SELECT 0xe0
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#define OPL_MAXREG 0xf5
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/*
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* Offsets to the register banks for voices.
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*/
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/* F-Number low bits (0xA0 to 0xA8). */
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#define OPL_FNUM_LOW 0xa0
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/* F-number high bits / Key on / Block (octave) (0xB0 to 0xB8) */
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#define OPL_KEYON_BLOCK 0xb0
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#define OPL_KEYON_BIT 0x20
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#define OPL_BLOCKNUM_MASK 0x1c
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#define OPL_FNUM_HIGH_MASK 0x03
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/* Feedback / Connection (0xc0 to 0xc8) */
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#define OPL_FEEDBACK_CONNECTION 0xc0
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#define OPL_FEEDBACK_MASK 0x0e
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#define OPL_CONNECTION_BIT 0x01
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#define OPL_STEREO_BITS 0x30 /* OPL-3 only */
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#define OPL_VOICE_TO_LEFT 0x10
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#define OPL_VOICE_TO_RIGHT 0x20
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#define OPL2_NVOICE 9
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#define OPL3_NVOICE 18
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