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qemu / qemu / 5a05cbeeaaa2ec463d48c0026e8e6be243ea0bab / . / hw / audio / fmopl.h
blob: 24ba5f4802ab323db73c8508e8665c93bf36d95d [file] [log] [blame]
bellard85571bc2004-11-07 18:04:02 +0000[diff] [blame]1#ifndef __FMOPL_H_
2#define __FMOPL_H_
3
4/* --- select emulation chips --- */
5#define BUILD_YM3812 (HAS_YM3812)
6//#define BUILD_YM3526 (HAS_YM3526)
7//#define BUILD_Y8950 (HAS_Y8950)
8
9/* --- system optimize --- */
10/* select bit size of output : 8 or 16 */
11#define OPL_OUTPUT_BIT 16
12
13/* compiler dependence */
14#ifndef OSD_CPU_H
15#define OSD_CPU_H
16typedef unsigned char UINT8; /* unsigned 8bit */
17typedef unsigned short UINT16; /* unsigned 16bit */
18typedef unsigned int UINT32; /* unsigned 32bit */
19typedef signed char INT8; /* signed 8bit */
20typedef signed short INT16; /* signed 16bit */
21typedef signed int INT32; /* signed 32bit */
22#endif
23
24#if (OPL_OUTPUT_BIT==16)
25typedef INT16 OPLSAMPLE;
26#endif
27#if (OPL_OUTPUT_BIT==8)
28typedef unsigned char OPLSAMPLE;
29#endif
30
31
32#if BUILD_Y8950
33#include "ymdeltat.h"
34#endif
35
36typedef void (*OPL_TIMERHANDLER)(int channel,double interval_Sec);
37typedef void (*OPL_IRQHANDLER)(int param,int irq);
38typedef void (*OPL_UPDATEHANDLER)(int param,int min_interval_us);
39typedef void (*OPL_PORTHANDLER_W)(int param,unsigned char data);
40typedef unsigned char (*OPL_PORTHANDLER_R)(int param);
41
42/* !!!!! here is private section , do not access there member direct !!!!! */
43
44#define OPL_TYPE_WAVESEL 0x01 /* waveform select */
45#define OPL_TYPE_ADPCM 0x02 /* DELTA-T ADPCM unit */
46#define OPL_TYPE_KEYBOARD 0x04 /* keyboard interface */
47#define OPL_TYPE_IO 0x08 /* I/O port */
48
49/* Saving is necessary for member of the 'R' mark for suspend/resume */
50/* ---------- OPL one of slot ---------- */
51typedef struct fm_opl_slot {
52 INT32 TL; /* total level :TL << 8 */
53 INT32 TLL; /* adjusted now TL */
54 UINT8 KSR; /* key scale rate :(shift down bit) */
55 INT32 *AR; /* attack rate :&AR_TABLE[AR<<2] */
56 INT32 *DR; /* decay rate :&DR_TALBE[DR<<2] */
57 INT32 SL; /* sustin level :SL_TALBE[SL] */
58 INT32 *RR; /* release rate :&DR_TABLE[RR<<2] */
59 UINT8 ksl; /* keyscale level :(shift down bits) */
60 UINT8 ksr; /* key scale rate :kcode>>KSR */
61 UINT32 mul; /* multiple :ML_TABLE[ML] */
62 UINT32 Cnt; /* frequency count : */
63 UINT32 Incr; /* frequency step : */
64 /* envelope generator state */
65 UINT8 eg_typ; /* envelope type flag */
66 UINT8 evm; /* envelope phase */
67 INT32 evc; /* envelope counter */
68 INT32 eve; /* envelope counter end point */
69 INT32 evs; /* envelope counter step */
70 INT32 evsa; /* envelope step for AR :AR[ksr] */
71 INT32 evsd; /* envelope step for DR :DR[ksr] */
72 INT32 evsr; /* envelope step for RR :RR[ksr] */
73 /* LFO */
74 UINT8 ams; /* ams flag */
75 UINT8 vib; /* vibrate flag */
76 /* wave selector */
77 INT32 **wavetable;
78}OPL_SLOT;
79
80/* ---------- OPL one of channel ---------- */
81typedef struct fm_opl_channel {
82 OPL_SLOT SLOT[2];
83 UINT8 CON; /* connection type */
84 UINT8 FB; /* feed back :(shift down bit) */
85 INT32 *connect1; /* slot1 output pointer */
86 INT32 *connect2; /* slot2 output pointer */
87 INT32 op1_out[2]; /* slot1 output for selfeedback */
88 /* phase generator state */
89 UINT32 block_fnum; /* block+fnum : */
90 UINT8 kcode; /* key code : KeyScaleCode */
91 UINT32 fc; /* Freq. Increment base */
92 UINT32 ksl_base; /* KeyScaleLevel Base step */
93 UINT8 keyon; /* key on/off flag */
94} OPL_CH;
95
96/* OPL state */
97typedef struct fm_opl_f {
98 UINT8 type; /* chip type */
99 int clock; /* master clock (Hz) */
100 int rate; /* sampling rate (Hz) */
101 double freqbase; /* frequency base */
102 double TimerBase; /* Timer base time (==sampling time) */
103 UINT8 address; /* address register */
104 UINT8 status; /* status flag */
105 UINT8 statusmask; /* status mask */
106 UINT32 mode; /* Reg.08 : CSM , notesel,etc. */
107 /* Timer */
108 int T[2]; /* timer counter */
109 UINT8 st[2]; /* timer enable */
110 /* FM channel slots */
111 OPL_CH *P_CH; /* pointer of CH */
112 int max_ch; /* maximum channel */
Stefan Weilc11e80e2011-12-10 00:19:42 +0100[diff] [blame]113 /* Rhythm sention */
114 UINT8 rhythm; /* Rhythm mode , key flag */
bellard85571bc2004-11-07 18:04:02 +0000[diff] [blame]115#if BUILD_Y8950
116 /* Delta-T ADPCM unit (Y8950) */
117 YM_DELTAT *deltat; /* DELTA-T ADPCM */
118#endif
119 /* Keyboard / I/O interface unit (Y8950) */
120 UINT8 portDirection;
121 UINT8 portLatch;
122 OPL_PORTHANDLER_R porthandler_r;
123 OPL_PORTHANDLER_W porthandler_w;
124 int port_param;
125 OPL_PORTHANDLER_R keyboardhandler_r;
126 OPL_PORTHANDLER_W keyboardhandler_w;
127 int keyboard_param;
128 /* time tables */
129 INT32 AR_TABLE[75]; /* atttack rate tables */
130 INT32 DR_TABLE[75]; /* decay rate tables */
131 UINT32 FN_TABLE[1024]; /* fnumber -> increment counter */
132 /* LFO */
133 INT32 *ams_table;
134 INT32 *vib_table;
135 INT32 amsCnt;
136 INT32 amsIncr;
137 INT32 vibCnt;
138 INT32 vibIncr;
139 /* wave selector enable flag */
140 UINT8 wavesel;
141 /* external event callback handler */
142 OPL_TIMERHANDLER TimerHandler; /* TIMER handler */
143 int TimerParam; /* TIMER parameter */
144 OPL_IRQHANDLER IRQHandler; /* IRQ handler */
145 int IRQParam; /* IRQ parameter */
146 OPL_UPDATEHANDLER UpdateHandler; /* stream update handler */
147 int UpdateParam; /* stream update parameter */
148} FM_OPL;
149
150/* ---------- Generic interface section ---------- */
151#define OPL_TYPE_YM3526 (0)
152#define OPL_TYPE_YM3812 (OPL_TYPE_WAVESEL)
153#define OPL_TYPE_Y8950 (OPL_TYPE_ADPCM|OPL_TYPE_KEYBOARD|OPL_TYPE_IO)
154
155FM_OPL *OPLCreate(int type, int clock, int rate);
156void OPLDestroy(FM_OPL *OPL);
157void OPLSetTimerHandler(FM_OPL *OPL,OPL_TIMERHANDLER TimerHandler,int channelOffset);
158void OPLSetIRQHandler(FM_OPL *OPL,OPL_IRQHANDLER IRQHandler,int param);
159void OPLSetUpdateHandler(FM_OPL *OPL,OPL_UPDATEHANDLER UpdateHandler,int param);
160/* Y8950 port handlers */
161void OPLSetPortHandler(FM_OPL *OPL,OPL_PORTHANDLER_W PortHandler_w,OPL_PORTHANDLER_R PortHandler_r,int param);
162void OPLSetKeyboardHandler(FM_OPL *OPL,OPL_PORTHANDLER_W KeyboardHandler_w,OPL_PORTHANDLER_R KeyboardHandler_r,int param);
163
164void OPLResetChip(FM_OPL *OPL);
165int OPLWrite(FM_OPL *OPL,int a,int v);
166unsigned char OPLRead(FM_OPL *OPL,int a);
167int OPLTimerOver(FM_OPL *OPL,int c);
168
169/* YM3626/YM3812 local section */
170void YM3812UpdateOne(FM_OPL *OPL, INT16 *buffer, int length);
171
172void Y8950UpdateOne(FM_OPL *OPL, INT16 *buffer, int length);
173
174#endif