5 #include "../PicoInt.h"
\r
7 #define cdprintf dprintf
\r
8 //#define cdprintf(x...)
\r
11 #define TRAY_OPEN 0x0500 // TRAY OPEN CDD status
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12 #define NOCD 0x0000 // CD removed CDD status
\r
13 #define STOPPED 0x0900 // STOPPED CDD status (happen after stop or close tray command)
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14 #define READY 0x0400 // READY CDD status (also used for seeking)
\r
15 #define FAST_FOW 0x0300 // FAST FORWARD track CDD status
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16 #define FAST_REV 0x10300 // FAST REVERSE track CDD status
\r
17 #define PLAYING 0x0100 // PLAYING audio track CDD status
\r
23 int CD_Audio_Buffer_L[8192];
\r
24 int CD_Audio_Buffer_R[8192];
\r
25 int CD_Audio_Buffer_Read_Pos = 0;
\r
26 int CD_Audio_Buffer_Write_Pos = 2000;
\r
27 int CD_Audio_Starting;
\r
30 static int CD_Present = 0;
\r
31 // int CD_Timer_Counter = 0; // TODO: check refs
\r
35 #define CHECK_TRAY_OPEN \
\r
36 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) \
\r
38 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \
\r
40 Pico_mcd->cdd.Minute = 0; \
\r
41 Pico_mcd->cdd.Seconde = 0; \
\r
42 Pico_mcd->cdd.Frame = 0; \
\r
43 Pico_mcd->cdd.Ext = 0; \
\r
45 Pico_mcd->scd.CDD_Complete = 1; \
\r
51 #define CHECK_CD_PRESENT \
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54 Pico_mcd->scd.Status_CDD = NOCD; \
\r
55 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \
\r
57 Pico_mcd->cdd.Minute = 0; \
\r
58 Pico_mcd->cdd.Seconde = 0; \
\r
59 Pico_mcd->cdd.Frame = 0; \
\r
60 Pico_mcd->cdd.Ext = 0; \
\r
62 Pico_mcd->scd.CDD_Complete = 1; \
\r
69 static void MSB2DWORD(unsigned int *d, unsigned char *b)
\r
71 unsigned int retVal;
\r
73 retVal = (unsigned int )b[0];
\r
74 retVal = (retVal<<8) + (unsigned int )b[1];
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75 retVal = (retVal<<8) + (unsigned int )b[2];
\r
76 retVal = (retVal<<8) + (unsigned int )b[3];
\r
82 static int MSF_to_LBA(_msf *MSF)
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84 return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;
\r
88 void LBA_to_MSF(int lba, _msf *MSF)
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90 if (lba < -150) lba = 0;
\r
92 MSF->M = lba / (60 * 75);
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93 MSF->S = (lba / 75) % 60;
\r
98 static unsigned int MSF_to_Track(_msf *MSF)
\r
102 Start = (MSF->M << 16) + (MSF->S << 8) + MSF->F;
\r
104 for(i = Pico_mcd->scd.TOC.First_Track; i <= (Pico_mcd->scd.TOC.Last_Track + 1); i++)
\r
106 Cur = Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.M << 16;
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107 Cur += Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.S << 8;
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108 Cur += Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.F;
\r
110 if (Cur > Start) break;
\r
115 if (i > Pico_mcd->scd.TOC.Last_Track) return 100;
\r
116 if (i < Pico_mcd->scd.TOC.First_Track) i = Pico_mcd->scd.TOC.First_Track;
\r
118 return (unsigned) i;
\r
122 static unsigned int LBA_to_Track(int lba)
\r
126 LBA_to_MSF(lba, &MSF);
\r
127 return MSF_to_Track(&MSF);
\r
131 static void Track_to_MSF(int track, _msf *MSF)
\r
133 if (track < Pico_mcd->scd.TOC.First_Track) track = Pico_mcd->scd.TOC.First_Track;
\r
134 else if (track > Pico_mcd->scd.TOC.Last_Track) track = Pico_mcd->scd.TOC.Last_Track;
\r
136 MSF->M = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.M;
\r
137 MSF->S = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.S;
\r
138 MSF->F = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.F;
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142 int Track_to_LBA(int track)
\r
146 Track_to_MSF(track, &MSF);
\r
147 return MSF_to_LBA(&MSF);
\r
151 void Check_CD_Command(void)
\r
153 cdprintf("CHECK CD COMMAND");
\r
157 if (Pico_mcd->scd.CDD_Complete)
\r
159 Pico_mcd->scd.CDD_Complete = 0;
\r
161 CDD_Export_Status();
\r
166 if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...
\r
168 cdprintf("Got a read command");
\r
171 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
\r
172 Pico_mcd->s68k_regs[0x36] |= 0x01;
\r
173 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
175 if (Pico_mcd->scd.File_Add_Delay == 0)
\r
177 FILE_Read_One_LBA_CDC();
\r
179 else Pico_mcd->scd.File_Add_Delay--;
\r
182 if (Pico_mcd->scd.Status_CDD == FAST_FOW)
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184 Pico_mcd->scd.Cur_LBA += 10;
\r
185 CDC_Update_Header();
\r
188 else if (Pico_mcd->scd.Status_CDD == FAST_REV)
\r
190 Pico_mcd->scd.Cur_LBA -= 10;
\r
191 if (Pico_mcd->scd.Cur_LBA < -150) Pico_mcd->scd.Cur_LBA = -150;
\r
192 CDC_Update_Header();
\r
197 int Init_CD_Driver(void)
\r
205 void End_CD_Driver(void)
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211 void Reset_CD(void)
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213 Pico_mcd->scd.Cur_Track = 0;
\r
214 Pico_mcd->scd.Cur_LBA = -150;
\r
215 Pico_mcd->scd.Status_CDD = READY;
\r
216 Pico_mcd->scd.CDD_Complete = 0;
\r
220 int Insert_CD(char *iso_name, int is_bin)
\r
224 // memset(CD_Audio_Buffer_L, 0, 4096 * 4);
\r
225 // memset(CD_Audio_Buffer_R, 0, 4096 * 4);
\r
229 if (iso_name != NULL)
\r
231 ret = Load_ISO(iso_name, is_bin);
\r
247 void Change_CD(void)
\r
249 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();
\r
250 else Open_Tray_CDD_cD();
\r
254 int Get_Status_CDD_c0(void)
\r
256 cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
\r
258 // Clear immediat status
\r
259 if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)
\r
260 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
\r
261 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0700)
\r
262 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
\r
263 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)
\r
264 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
\r
266 Pico_mcd->scd.CDD_Complete = 1;
\r
272 int Stop_CDD_c1(void)
\r
276 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
278 if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;
\r
279 else Pico_mcd->scd.Status_CDD = NOCD;
\r
280 Pico_mcd->cdd.Status = 0x0000;
\r
282 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped
\r
284 Pico_mcd->cdd.Minute = 0;
\r
285 Pico_mcd->cdd.Seconde = 0;
\r
286 Pico_mcd->cdd.Frame = 0;
\r
287 Pico_mcd->cdd.Ext = 0;
\r
289 Pico_mcd->scd.CDD_Complete = 1;
\r
295 int Get_Pos_CDD_c20(void)
\r
299 cdprintf("command 200 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
\r
303 Pico_mcd->cdd.Status &= 0xFF;
\r
306 Pico_mcd->scd.Status_CDD = NOCD;
\r
307 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
309 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
310 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
312 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
\r
314 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
\r
316 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);
\r
317 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);
\r
318 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);
\r
319 Pico_mcd->cdd.Ext = 0;
\r
321 Pico_mcd->scd.CDD_Complete = 1;
\r
327 int Get_Track_Pos_CDD_c21(void)
\r
332 cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
\r
336 Pico_mcd->cdd.Status &= 0xFF;
\r
339 Pico_mcd->scd.Status_CDD = NOCD;
\r
340 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
342 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
343 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
345 elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));
\r
346 LBA_to_MSF(elapsed_time - 150, &MSF);
\r
348 cdprintf(" elapsed = %d", elapsed_time);
\r
350 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);
\r
351 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);
\r
352 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);
\r
353 Pico_mcd->cdd.Ext = 0;
\r
355 Pico_mcd->scd.CDD_Complete = 1;
\r
361 int Get_Current_Track_CDD_c22(void)
\r
363 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
\r
367 Pico_mcd->cdd.Status &= 0xFF;
\r
370 Pico_mcd->scd.Status_CDD = NOCD;
\r
371 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
373 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
374 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
376 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);
\r
378 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
379 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
380 Pico_mcd->cdd.Seconde = 0;
\r
381 Pico_mcd->cdd.Frame = 0;
\r
382 Pico_mcd->cdd.Ext = 0;
\r
384 Pico_mcd->scd.CDD_Complete = 1;
\r
390 int Get_Total_Lenght_CDD_c23(void)
\r
394 Pico_mcd->cdd.Status &= 0xFF;
\r
397 Pico_mcd->scd.Status_CDD = NOCD;
\r
398 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
400 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
401 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
403 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -
\r
404 Pico_mcd->scd.TOC.First_Track + 1].MSF.M);
\r
405 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -
\r
406 Pico_mcd->scd.TOC.First_Track + 1].MSF.S);
\r
407 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -
\r
408 Pico_mcd->scd.TOC.First_Track + 1].MSF.F);
\r
409 Pico_mcd->cdd.Ext = 0;
\r
412 //Pico_mcd->cdd.Seconde = 2;
\r
414 Pico_mcd->scd.CDD_Complete = 1;
\r
420 int Get_First_Last_Track_CDD_c24(void)
\r
424 Pico_mcd->cdd.Status &= 0xFF;
\r
427 Pico_mcd->scd.Status_CDD = NOCD;
\r
429 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
430 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
432 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.First_Track);
\r
433 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Last_Track);
\r
434 Pico_mcd->cdd.Frame = 0;
\r
435 Pico_mcd->cdd.Ext = 0;
\r
438 //Pico_mcd->cdd.Minute = Pico_mcd->cdd.Seconde = 1;
\r
440 Pico_mcd->scd.CDD_Complete = 1;
\r
446 int Get_Track_Adr_CDD_c25(void)
\r
452 // track number in TC4 & TC5
\r
454 track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
456 Pico_mcd->cdd.Status &= 0xFF;
\r
459 Pico_mcd->scd.Status_CDD = NOCD;
\r
460 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
462 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
463 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
465 if (track_number > Pico_mcd->scd.TOC.Last_Track) track_number = Pico_mcd->scd.TOC.Last_Track;
\r
466 else if (track_number < Pico_mcd->scd.TOC.First_Track) track_number = Pico_mcd->scd.TOC.First_Track;
\r
468 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.M);
\r
469 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.S);
\r
470 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.F);
\r
471 Pico_mcd->cdd.Ext = track_number % 10;
\r
473 if (Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].Type) Pico_mcd->cdd.Frame |= 0x0800;
\r
475 Pico_mcd->scd.CDD_Complete = 1;
\r
480 int Play_CDD_c3(void)
\r
483 int delay, new_lba;
\r
488 // MSF of the track to play in TC buffer
\r
490 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
\r
491 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
492 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);
\r
494 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);
\r
496 new_lba = MSF_to_LBA(&MSF);
\r
497 delay = new_lba - Pico_mcd->scd.Cur_LBA;
\r
498 if (delay < 0) delay = -delay;
\r
501 Pico_mcd->scd.Cur_LBA = new_lba;
\r
502 CDC_Update_Header();
\r
504 cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
\r
506 if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;
\r
508 Pico_mcd->scd.Status_CDD = PLAYING;
\r
509 Pico_mcd->cdd.Status = 0x0102;
\r
510 // Pico_mcd->cdd.Status = COMM_OK;
\r
512 if (Pico_mcd->scd.File_Add_Delay == 0) Pico_mcd->scd.File_Add_Delay = delay;
\r
514 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
\r
516 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA
\r
520 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
521 //CD_Audio_Starting = 1;
\r
522 FILE_Play_CD_LBA();
\r
525 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
526 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
527 Pico_mcd->cdd.Seconde = 0;
\r
528 Pico_mcd->cdd.Frame = 0;
\r
529 Pico_mcd->cdd.Ext = 0;
\r
531 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC
\r
533 Pico_mcd->scd.CDD_Complete = 1;
\r
538 int Seek_CDD_c4(void)
\r
545 // MSF to seek in TC buffer
\r
547 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
\r
548 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
549 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);
\r
551 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);
\r
552 Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);
\r
553 CDC_Update_Header();
\r
555 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
557 Pico_mcd->scd.Status_CDD = READY;
\r
558 Pico_mcd->cdd.Status = 0x0200;
\r
561 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
\r
562 Pico_mcd->s68k_regs[0x36] |= 0x01;
\r
563 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
565 Pico_mcd->cdd.Minute = 0;
\r
566 Pico_mcd->cdd.Seconde = 0;
\r
567 Pico_mcd->cdd.Frame = 0;
\r
568 Pico_mcd->cdd.Ext = 0;
\r
570 Pico_mcd->scd.CDD_Complete = 1;
\r
576 int Pause_CDD_c6(void)
\r
581 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data
\r
583 Pico_mcd->scd.Status_CDD = READY;
\r
584 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
586 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped
\r
588 Pico_mcd->cdd.Minute = 0;
\r
589 Pico_mcd->cdd.Seconde = 0;
\r
590 Pico_mcd->cdd.Frame = 0;
\r
591 Pico_mcd->cdd.Ext = 0;
\r
593 Pico_mcd->scd.CDD_Complete = 1;
\r
599 int Resume_CDD_c7(void)
\r
604 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);
\r
609 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
\r
610 cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
\r
614 Pico_mcd->scd.Status_CDD = PLAYING;
\r
615 Pico_mcd->cdd.Status = 0x0102;
\r
617 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
\r
619 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA
\r
623 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
624 //CD_Audio_Starting = 1;
\r
625 FILE_Play_CD_LBA();
\r
628 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
629 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
630 Pico_mcd->cdd.Seconde = 0;
\r
631 Pico_mcd->cdd.Frame = 0;
\r
632 Pico_mcd->cdd.Ext = 0;
\r
634 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC
\r
636 Pico_mcd->scd.CDD_Complete = 1;
\r
641 int Fast_Foward_CDD_c8(void)
\r
646 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
648 Pico_mcd->scd.Status_CDD = FAST_FOW;
\r
649 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;
\r
651 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
652 Pico_mcd->cdd.Seconde = 0;
\r
653 Pico_mcd->cdd.Frame = 0;
\r
654 Pico_mcd->cdd.Ext = 0;
\r
656 Pico_mcd->scd.CDD_Complete = 1;
\r
662 int Fast_Rewind_CDD_c9(void)
\r
667 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
669 Pico_mcd->scd.Status_CDD = FAST_REV;
\r
670 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;
\r
672 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
673 Pico_mcd->cdd.Seconde = 0;
\r
674 Pico_mcd->cdd.Frame = 0;
\r
675 Pico_mcd->cdd.Ext = 0;
\r
677 Pico_mcd->scd.CDD_Complete = 1;
\r
683 int Close_Tray_CDD_cC(void)
\r
685 //Clear_Sound_Buffer();
\r
687 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
691 char new_iso[1024];
\r
693 memset(new_iso, 0, 1024);
\r
695 while (!Change_File_L(new_iso, Rom_Dir, "Load SegaCD image file", "SegaCD image file\0*.bin;*.iso;*.raw\0All files\0*.*\0\0", ""));
\r
696 Reload_SegaCD(new_iso);
\r
702 Pico_mcd->scd.Status_CDD = STOPPED;
\r
703 Pico_mcd->cdd.Status = 0x0000;
\r
705 Pico_mcd->cdd.Minute = 0;
\r
706 Pico_mcd->cdd.Seconde = 0;
\r
707 Pico_mcd->cdd.Frame = 0;
\r
708 Pico_mcd->cdd.Ext = 0;
\r
711 Pico_mcd->scd.CDD_Complete = 1;
\r
717 int Open_Tray_CDD_cD(void)
\r
721 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
726 Pico_mcd->scd.Status_CDD = TRAY_OPEN;
\r
727 Pico_mcd->cdd.Status = 0x0E00;
\r
729 Pico_mcd->cdd.Minute = 0;
\r
730 Pico_mcd->cdd.Seconde = 0;
\r
731 Pico_mcd->cdd.Frame = 0;
\r
732 Pico_mcd->cdd.Ext = 0;
\r
734 Pico_mcd->scd.CDD_Complete = 1;
\r
745 Pico_mcd->scd.Status_CDC &= ~1;
\r
747 Pico_mcd->scd.Status_CDD = READY;
\r
748 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
750 Pico_mcd->cdd.Minute = 0;
\r
751 Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);
\r
752 Pico_mcd->cdd.Frame = INT_TO_BCDW(1);
\r
753 Pico_mcd->cdd.Ext = 0;
\r
755 Pico_mcd->scd.CDD_Complete = 1;
\r
763 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
765 Pico_mcd->cdd.Minute = 0;
\r
766 Pico_mcd->cdd.Seconde = 0;
\r
767 Pico_mcd->cdd.Frame = 0;
\r
768 Pico_mcd->cdd.Ext = 0;
\r
776 /***************************
\r
777 * Others CD functions *
\r
778 **************************/
\r
781 // do we need them?
\r
783 void Write_CD_Audio(short *Buf, int rate, int channel, int lenght)
\r
785 unsigned int lenght_src, lenght_dst;
\r
786 unsigned int pos_src, pas_src;
\r
788 if (rate == 0) return;
\r
789 if (Sound_Rate == 0) return;
\r
791 if (CD_Audio_Starting)
\r
793 CD_Audio_Starting = 0;
\r
794 memset(CD_Audio_Buffer_L, 0, 4096 * 4);
\r
795 memset(CD_Audio_Buffer_R, 0, 4096 * 4);
\r
796 CD_Audio_Buffer_Write_Pos = (CD_Audio_Buffer_Read_Pos + 2000) & 0xFFF;
\r
799 lenght_src = rate / 75; // 75th of a second
\r
800 lenght_dst = Sound_Rate / 75; // 75th of a second
\r
802 pas_src = (lenght_src << 16) / lenght_dst;
\r
806 fprintf(debug_SCD_file, "\n********* Write Pos = %d ", CD_Audio_Buffer_Write_Pos);
\r
813 mov edi, CD_Audio_Buffer_Write_Pos
\r
816 mov ecx, lenght_dst
\r
820 jmp short loop_stereo
\r
825 movsx eax, word ptr [ebx + esi * 4]
\r
826 mov CD_Audio_Buffer_L[edi * 4], eax
\r
827 movsx eax, word ptr [ebx + esi * 4 + 2]
\r
828 mov CD_Audio_Buffer_R[edi * 4], eax
\r
829 mov esi, dword ptr pos_src
\r
833 mov dword ptr pos_src, esi
\r
836 jns short loop_stereo
\r
838 mov CD_Audio_Buffer_Write_Pos, edi
\r
845 mov edi, CD_Audio_Buffer_Write_Pos
\r
848 mov ecx, lenght_dst
\r
852 jmp short loop_mono
\r
857 movsx eax, word ptr [ebx + esi * 2]
\r
858 mov CD_Audio_Buffer_L[edi * 4], eax
\r
859 mov CD_Audio_Buffer_R[edi * 4], eax
\r
860 mov esi, dword ptr pos_src
\r
864 mov dword ptr pos_src, esi
\r
867 jns short loop_mono
\r
869 mov CD_Audio_Buffer_Write_Pos, edi
\r
874 fprintf(debug_SCD_file, "Write Pos 2 = %d\n\n", CD_Audio_Buffer_Write_Pos);
\r
879 void Update_CD_Audio(int **buf, int lenght)
\r
881 int *Buf_L, *Buf_R;
\r
887 if (Pico_mcd->s68k_regs[0x36] & 0x01) return;
\r
888 if (!(Pico_mcd->scd.Status_CDC & 1)) return;
\r
889 if (CD_Audio_Starting) return;
\r
892 fprintf(debug_SCD_file, "\n********* Read Pos Normal = %d ", CD_Audio_Buffer_Read_Pos);
\r
895 if (CD_Audio_Buffer_Write_Pos < CD_Audio_Buffer_Read_Pos)
\r
897 diff = CD_Audio_Buffer_Write_Pos + (4096) - CD_Audio_Buffer_Read_Pos;
\r
901 diff = CD_Audio_Buffer_Write_Pos - CD_Audio_Buffer_Read_Pos;
\r
904 if (diff < 500) CD_Audio_Buffer_Read_Pos -= 2000;
\r
905 else if (diff > 3500) CD_Audio_Buffer_Read_Pos += 2000;
\r
908 else fprintf(debug_SCD_file, " pas de modifs ");
\r
911 CD_Audio_Buffer_Read_Pos &= 0xFFF;
\r
914 fprintf(debug_SCD_file, "Read Pos = %d ", CD_Audio_Buffer_Read_Pos);
\r
922 mov esi, CD_Audio_Buffer_Read_Pos
\r
927 mov eax, CD_Audio_Buffer_L[esi * 4]
\r
936 mov esi, CD_Audio_Buffer_Read_Pos
\r
941 mov eax, CD_Audio_Buffer_R[esi * 4]
\r
949 mov CD_Audio_Buffer_Read_Pos, esi
\r
954 CD_Audio_Buffer_Read_Pos += lenght;
\r
955 CD_Audio_Buffer_Read_Pos &= 0xFFF;
\r
959 fprintf(debug_SCD_file, "Read Pos 2 = %d\n\n", CD_Audio_Buffer_Read_Pos);
\r