aboutsummaryrefslogtreecommitdiff
path: root/hw/audio/gustate.h
blob: ece903abb98fed9a990813337e36cf8cb52c0f2e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/*
 * GUSEMU32 - persistent GUS register state
 *
 * Copyright (C) 2000-2007 Tibor "TS" Schütz
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef GUSTATE_H
#define GUSTATE_H

/*state block offset*/
#define gusdata (0)

/* data stored using this structure is in host byte order! */

/*access type*/
#define PortRead  (0)
#define PortWrite (1)

#define Port8Bitacc  (0)
#define Port16Bitacc (1)

/*voice register offsets (in bytes)*/
#define VSRegs (0)
#define VSRControl          (0)
#define VSRegsEnd (VSRControl+VSRegs + 32*(16*2))
#define VSRFreq             (2)
#define VSRLoopStartHi      (4)
#define VSRLoopStartLo      (6)
#define VSRLoopEndHi        (8)
#define VSRLoopEndLo       (10)
#define VSRVolRampRate     (12)
#define VSRVolRampStartVol (14)
#define VSRVolRampEndVol   (16)
#define VSRCurrVol         (18)
#define VSRCurrPosHi       (20)
#define VSRCurrPosLo       (22)
#define VSRPanning         (24)
#define VSRVolRampControl  (26)

/*voice register offsets (in words)*/
#define wVSRegs (0)
#define wVSRControl         (0)
#define wVSRegsEnd (wVSRControl+wVSRegs + 32*(16))
#define wVSRFreq            (1)
#define wVSRLoopStartHi     (2)
#define wVSRLoopStartLo     (3)
#define wVSRLoopEndHi       (4)
#define wVSRLoopEndLo       (5)
#define wVSRVolRampRate     (6)
#define wVSRVolRampStartVol (7)
#define wVSRVolRampEndVol   (8)
#define wVSRCurrVol         (9)
#define wVSRCurrPosHi      (10)
#define wVSRCurrPosLo      (11)
#define wVSRPanning        (12)
#define wVSRVolRampControl (13)

/*GUS register state block: 32 voices, padding filled with remaining registers*/
#define DataRegLoByte3x4  (VSRVolRampControl+2)
#define  DataRegWord3x4 (DataRegLoByte3x4)
#define DataRegHiByte3x5  (VSRVolRampControl+2       +1)
#define DMA_2xB (VSRVolRampControl+2+2)
#define IRQ_2xB (VSRVolRampControl+2+3)

#define RegCtrl_2xF       (VSRVolRampControl+2+(16*2))
#define Jumper_2xB        (VSRVolRampControl+2+(16*2)+1)
#define GUS42DMAStart     (VSRVolRampControl+2+(16*2)+2)

#define GUS43DRAMIOlo     (VSRVolRampControl+2+(16*2)*2)
#define  GUSDRAMPOS24bit (GUS43DRAMIOlo)
#define GUS44DRAMIOhi     (VSRVolRampControl+2+(16*2)*2+2)

#define voicewavetableirq (VSRVolRampControl+2+(16*2)*3) /* voice IRQ pseudoqueue: 1 bit per voice */

#define voicevolrampirq   (VSRVolRampControl+2+(16*2)*4) /* voice IRQ pseudoqueue: 1 bit per voice */

#define startvoices       (VSRVolRampControl+2+(16*2)*5) /* statistics / optimizations */

#define IRQStatReg2x6     (VSRVolRampControl+2+(16*2)*6)
#define TimerStatus2x8    (VSRVolRampControl+2+(16*2)*6+1)
#define TimerDataReg2x9   (VSRVolRampControl+2+(16*2)*6+2)
#define MixerCtrlReg2x0   (VSRVolRampControl+2+(16*2)*6+3)

#define VoiceSelReg3x2    (VSRVolRampControl+2+(16*2)*7)
#define FunkSelReg3x3     (VSRVolRampControl+2+(16*2)*7+1)
#define AdLibStatus2x8    (VSRVolRampControl+2+(16*2)*7+2)
#define StatRead_2xF      (VSRVolRampControl+2+(16*2)*7+3)

#define GUS48SampSpeed    (VSRVolRampControl+2+(16*2)*8)
#define GUS41DMACtrl      (VSRVolRampControl+2+(16*2)*8+1)
#define GUS45TimerCtrl    (VSRVolRampControl+2+(16*2)*8+2)
#define GUS46Counter1     (VSRVolRampControl+2+(16*2)*8+3)

#define GUS47Counter2     (VSRVolRampControl+2+(16*2)*9)
#define GUS49SampCtrl     (VSRVolRampControl+2+(16*2)*9+1)
#define GUS4cReset        (VSRVolRampControl+2+(16*2)*9+2)
#define NumVoices         (VSRVolRampControl+2+(16*2)*9+3)

#define TimerIRQs         (VSRVolRampControl+2+(16*2)*10)   /* delayed IRQ, statistics */
#define BusyTimerIRQs     (VSRVolRampControl+2+(16*2)*10+2) /* delayed IRQ, statistics */

#define AdLibCommand2xA   (VSRVolRampControl+2+(16*2)*11)
#define AdLibData2x9      (VSRVolRampControl+2+(16*2)*11+1)
#define SB2xCd            (VSRVolRampControl+2+(16*2)*11+2)
#define SB2xE             (VSRVolRampControl+2+(16*2)*11+3)

#define SynVoiceIRQ8f     (VSRVolRampControl+2+(16*2)*12)
#define GUS50DMAHigh      (VSRVolRampControl+2+(16*2)*12+1)

#define portaccesses (VSRegsEnd) /* statistics / suspend mode */

#define gusdataend (VSRegsEnd+4)

#endif  /* gustate.h */