Annotation of qemu/hw/fmopl.h, revision 1.1.1.1
1.1 root 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
16: typedef unsigned char UINT8; /* unsigned 8bit */
17: typedef unsigned short UINT16; /* unsigned 16bit */
18: typedef unsigned int UINT32; /* unsigned 32bit */
19: typedef signed char INT8; /* signed 8bit */
20: typedef signed short INT16; /* signed 16bit */
21: typedef signed int INT32; /* signed 32bit */
22: #endif
23:
24: #if (OPL_OUTPUT_BIT==16)
25: typedef INT16 OPLSAMPLE;
26: #endif
27: #if (OPL_OUTPUT_BIT==8)
28: typedef unsigned char OPLSAMPLE;
29: #endif
30:
31:
32: #if BUILD_Y8950
33: #include "ymdeltat.h"
34: #endif
35:
36: typedef void (*OPL_TIMERHANDLER)(int channel,double interval_Sec);
37: typedef void (*OPL_IRQHANDLER)(int param,int irq);
38: typedef void (*OPL_UPDATEHANDLER)(int param,int min_interval_us);
39: typedef void (*OPL_PORTHANDLER_W)(int param,unsigned char data);
40: typedef 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 ---------- */
51: typedef 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 ---------- */
81: typedef 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 */
97: typedef 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 */
113: /* Rythm sention */
114: UINT8 rythm; /* Rythm mode , key flag */
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:
155: FM_OPL *OPLCreate(int type, int clock, int rate);
156: void OPLDestroy(FM_OPL *OPL);
157: void OPLSetTimerHandler(FM_OPL *OPL,OPL_TIMERHANDLER TimerHandler,int channelOffset);
158: void OPLSetIRQHandler(FM_OPL *OPL,OPL_IRQHANDLER IRQHandler,int param);
159: void OPLSetUpdateHandler(FM_OPL *OPL,OPL_UPDATEHANDLER UpdateHandler,int param);
160: /* Y8950 port handlers */
161: void OPLSetPortHandler(FM_OPL *OPL,OPL_PORTHANDLER_W PortHandler_w,OPL_PORTHANDLER_R PortHandler_r,int param);
162: void OPLSetKeyboardHandler(FM_OPL *OPL,OPL_PORTHANDLER_W KeyboardHandler_w,OPL_PORTHANDLER_R KeyboardHandler_r,int param);
163:
164: void OPLResetChip(FM_OPL *OPL);
165: int OPLWrite(FM_OPL *OPL,int a,int v);
166: unsigned char OPLRead(FM_OPL *OPL,int a);
167: int OPLTimerOver(FM_OPL *OPL,int c);
168:
169: /* YM3626/YM3812 local section */
170: void YM3812UpdateOne(FM_OPL *OPL, INT16 *buffer, int length);
171:
172: void Y8950UpdateOne(FM_OPL *OPL, INT16 *buffer, int length);
173:
174: #endif
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