1 /* $OpenBSD: oplreg.h,v 1.1 1999/01/02 00:02:40 niklas Exp $ */
2 /* $NetBSD: oplreg.h,v 1.3 1998/11/25 22:17:06 augustss Exp $ */
3
4 /*
5 * Copyright (c) 1997 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Lennart Augustsson (augustss@netbsd.org).
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /* Offsets from base address */
41 #define OPL_L 0
42 #define OPL_R 2
43
44 /* Offsets from base+[OPL_L|OPL_R] */
45 #define OPL_STATUS 0
46 #define OPL_STATUS_IRQ 0x80
47 #define OPL_STATUS_FT1 0x40
48 #define OPL_STATUS_FT2 0x20
49 #define OPL_STATUS_MASK 0xE0
50 #define OPL_ADDR 0
51 #define OPL_DATA 1
52
53 #define OPL_TEST 0x01
54 #define OPL_ENABLE_WAVE_SELECT 0x20
55
56 #define OPL_TIMER1 0x02
57 #define OPL_TIMER2 0x03
58
59 #define OPL_TIMER_CONTROL 0x04 /* Left */
60 #define OPL_TIMER1_START 0x01
61 #define OPL_TIMER2_START 0x02
62 #define OPL_TIMER2_MASK 0x20
63 #define OPL_TIMER1_MASK 0x40
64 #define OPL_IRQ_RESET 0x80
65
66 #define OPL_CONNECTION_SELECT 0x04 /* Right */
67 #define OPL_NOCONNECTION 0x00
68 #define OPL_R_4OP_0 0x01
69 #define OPL_R_4OP_1 0x02
70 #define OPL_R_4OP_2 0x04
71 #define OPL_L_4OP_0 0x08
72 #define OPL_L_4OP_1 0x10
73 #define OPL_L_4OP_2 0x20
74
75 #define OPL_MODE 0x05 /* Right */
76 #define OPL3_ENABLE 0x01
77 #define OPL4_ENABLE 0x02
78
79 #define OPL_KBD_SPLIT 0x08 /* Left */
80 #define OPL_KEYBOARD_SPLIT 0x40
81 #define OPL_COMPOSITE_SINE_WAVE_MODE 0x80
82
83 #define OPL_PERCUSSION 0xbd /* Left */
84 #define OPL_NOPERCUSSION 0x00
85 #define OPL_HIHAT 0x01
86 #define OPL_CYMBAL 0x02
87 #define OPL_TOMTOM 0x04
88 #define OPL_SNAREDRUM 0x08
89 #define OPL_BASSDRUM 0x10
90 #define OPL_PERCUSSION_ENABLE 0x20
91 #define OPL_VIBRATO_DEPTH 0x40
92 #define OPL_TREMOLO_DEPTH 0x80
93
94 /*
95 * Offsets to the register banks for operators.
96 */
97 /* AM/VIB/EG/KSR/Multiple (0x20 to 0x35) */
98 #define OPL_AM_VIB 0x20
99 #define OPL_KSR 0x10
100 #define OPL_SUSTAIN 0x20
101 #define OPL_VIBRATO 0x40
102 #define OPL_TREMOLO 0x80
103 #define OPL_MULTIPLE_MASK 0x0f
104
105 /* KSL/Total level (0x40 to 0x55) */
106 #define OPL_KSL_LEVEL 0x40
107 #define OPL_KSL_MASK 0xc0 /* Envelope scaling bits */
108 #define OPL_TOTAL_LEVEL_MASK 0x3f /* Strength (volume) of OP */
109
110 /* Attack / Decay rate (0x60 to 0x75) */
111 #define OPL_ATTACK_DECAY 0x60
112 #define OPL_ATTACK_MASK 0xf0
113 #define DECAY_MASK 0x0f
114
115 /* Sustain level / Release rate (0x80 to 0x95) */
116 #define OPL_SUSTAIN_RELEASE 0x80
117 #define OPL_SUSTAIN_MASK 0xf0
118 #define OPL_RELEASE_MASK 0x0f
119
120 /* Wave select (0xE0 to 0xF5) */
121 #define OPL_WAVE_SELECT 0xe0
122
123 #define OPL_MAXREG 0xf5
124
125 /*
126 * Offsets to the register banks for voices.
127 */
128 /* F-Number low bits (0xA0 to 0xA8). */
129 #define OPL_FNUM_LOW 0xa0
130
131 /* F-number high bits / Key on / Block (octave) (0xB0 to 0xB8) */
132 #define OPL_KEYON_BLOCK 0xb0
133 #define OPL_KEYON_BIT 0x20
134 #define OPL_BLOCKNUM_MASK 0x1c
135 #define OPL_FNUM_HIGH_MASK 0x03
136
137 /* Feedback / Connection (0xc0 to 0xc8) */
138 #define OPL_FEEDBACK_CONNECTION 0xc0
139 #define OPL_FEEDBACK_MASK 0x0e
140 #define OPL_CONNECTION_BIT 0x01
141 #define OPL_STEREO_BITS 0x30 /* OPL-3 only */
142 #define OPL_VOICE_TO_LEFT 0x10
143 #define OPL_VOICE_TO_RIGHT 0x20
144
145 #define OPL2_NVOICE 9
146 #define OPL3_NVOICE 18