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psxcounters: avoid excessive recalculations
[pcsx_rearmed.git] / libpcsxcore / cdrom.c
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ef79bbde
P		 1/***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
18 ***************************************************************************/
19
20/*
21* Handles all CD-ROM registers and functions.
22*/
23
24#include "cdrom.h"
25#include "ppf.h"
9f8b032d 26#include "psxdma.h"
ef79bbde
P		 27
28cdrStruct cdr;
29
30/* CD-ROM magic numbers */
31#define CdlSync 0
32#define CdlNop 1
33#define CdlSetloc 2
34#define CdlPlay 3
35#define CdlForward 4
36#define CdlBackward 5
37#define CdlReadN 6
38#define CdlStandby 7
39#define CdlStop 8
40#define CdlPause 9
41#define CdlInit 10
42#define CdlMute 11
43#define CdlDemute 12
44#define CdlSetfilter 13
45#define CdlSetmode 14
46#define CdlGetmode 15
47#define CdlGetlocL 16
48#define CdlGetlocP 17
49#define CdlReadT 18
50#define CdlGetTN 19
51#define CdlGetTD 20
52#define CdlSeekL 21
53#define CdlSeekP 22
54#define CdlSetclock 23
55#define CdlGetclock 24
56#define CdlTest 25
57#define CdlID 26
58#define CdlReadS 27
59#define CdlReset 28
60#define CdlReadToc 30
61
62#define AUTOPAUSE 249
63#define READ_ACK 250
64#define READ 251
65#define REPPLAY_ACK 252
66#define REPPLAY 253
67#define ASYNC 254
68/* don't set 255, it's reserved */
69
70char *CmdName[0x100]= {
71 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
72 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
73 "CdlStop", "CdlPause", "CdlInit", "CdlMute",
74 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
75 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
76 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
77 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
78 "CdlReset", NULL, "CDlReadToc", NULL
79};
80
81unsigned char Test04[] = { 0 };
82unsigned char Test05[] = { 0 };
83unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
84unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
85unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
86
9f8b032d 87// cdr.Stat:
88#define NoIntr 0
89#define DataReady 1
90#define Complete 2
91#define Acknowledge 3
92#define DataEnd 4
93#define DiskError 5
94
95/* Modes flags */
96#define MODE_SPEED (1<<7) // 0x80
97#define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
98#define MODE_SIZE_2340 (1<<5) // 0x20
99#define MODE_SIZE_2328 (1<<4) // 0x10
100#define MODE_SF (1<<3) // 0x08 channel on/off
101#define MODE_REPORT (1<<2) // 0x04
102#define MODE_AUTOPAUSE (1<<1) // 0x02
103#define MODE_CDDA (1<<0) // 0x01
104
105/* Status flags */
106#define STATUS_PLAY (1<<7) // 0x80
107#define STATUS_SEEK (1<<6) // 0x40
108#define STATUS_READ (1<<5) // 0x20
109#define STATUS_SHELLOPEN (1<<4) // 0x10
110#define STATUS_UNKNOWN3 (1<<3) // 0x08
111#define STATUS_UNKNOWN2 (1<<2) // 0x04
112#define STATUS_ROTATING (1<<1) // 0x02
113#define STATUS_ERROR (1<<0) // 0x01
114
115
116
ef79bbde
P		 117// 1x = 75 sectors per second
118// PSXCLK = 1 sec in the ps
119// so (PSXCLK / 75) = cdr read time (linuzappz)
120#define cdReadTime (PSXCLK / 75)
121
122static struct CdrStat stat;
ef79bbde 123
9f8b032d 124static unsigned int msf2sec(char *msf) {
125 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
126}
127
128static void sec2msf(unsigned int s, char *msf) {
129 msf[0] = s / 75 / 60;
130 s = s - msf[0] * 75 * 60;
131 msf[1] = s / 75;
132 s = s - msf[1] * 75;
133 msf[2] = s;
134}
135
136
ef79bbde 137#define CDR_INT(eCycle) { \
d28b54b1 138 psxRegs.interrupt |= (1 << PSXINT_CDR); \
139 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
140 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
141 new_dyna_set_event(PSXINT_CDR, eCycle); \
ae602c19 142}
ef79bbde
P		 143
144#define CDREAD_INT(eCycle) { \
d28b54b1 145 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
146 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
147 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
148 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
ae602c19 149}
ef79bbde 150
9f8b032d 151#define CDRLID_INT(eCycle) { \
152 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
153 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
154 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
155 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
156}
157
7f457614 158#define CDRPLAY_INT(eCycle) { \
159 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
160 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
161 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
162 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
163}
164
ef79bbde
P		 165#define StartReading(type, eCycle) { \
166 cdr.Reading = type; \
167 cdr.FirstSector = 1; \
168 cdr.Readed = 0xff; \
169 AddIrqQueue(READ_ACK, eCycle); \
170}
171
172#define StopReading() { \
173 if (cdr.Reading) { \
174 cdr.Reading = 0; \
d28b54b1 175 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
ef79bbde 176 } \
9f8b032d 177 cdr.StatP &= ~STATUS_READ;\
ef79bbde
P		 178}
179
180#define StopCdda() { \
181 if (cdr.Play) { \
182 if (!Config.Cdda) CDR_stop(); \
9f8b032d 183 cdr.StatP &= ~STATUS_PLAY; \
ef79bbde 184 cdr.Play = FALSE; \
9f8b032d 185 cdr.FastForward = 0; \
186 cdr.FastBackward = 0; \
187 /*SPU_registerCallback( SPUirq );*/ \
ef79bbde
P		 188 } \
189}
190
191#define SetResultSize(size) { \
192 cdr.ResultP = 0; \
193 cdr.ResultC = size; \
194 cdr.ResultReady = 1; \
195}
196
9f8b032d 197
198void cdrLidSeekInterrupt()
199{
200 // turn back on checking
201 if( cdr.LidCheck == 0x10 )
202 {
203 cdr.LidCheck = 0;
204 }
205
206 // official lid close
207 else if( cdr.LidCheck == 0x30 )
208 {
209 // GS CDX 3.3: $13
210 cdr.StatP |= STATUS_ROTATING;
211
212
213 // GS CDX 3.3 - ~50 getlocp tries
214 CDRLID_INT( cdReadTime * 3 );
215 cdr.LidCheck = 0x40;
216 }
217
218 // turn off ready
219 else if( cdr.LidCheck == 0x40 )
220 {
221 // GS CDX 3.3: $01
222 cdr.StatP &= ~STATUS_SHELLOPEN;
223 cdr.StatP &= ~STATUS_ROTATING;
224
225
226 // GS CDX 3.3 - ~50 getlocp tries
227 CDRLID_INT( cdReadTime * 3 );
228 cdr.LidCheck = 0x50;
229 }
230
231 // now seek
232 else if( cdr.LidCheck == 0x50 )
233 {
234 // GameShark Lite: Start seeking ($42)
235 cdr.StatP |= STATUS_SEEK;
236 cdr.StatP |= STATUS_ROTATING;
237 cdr.StatP &= ~STATUS_ERROR;
238
239
240 CDRLID_INT( cdReadTime * 3 );
241 cdr.LidCheck = 0x60;
242 }
243
244 // done = cd ready
245 else if( cdr.LidCheck == 0x60 )
246 {
247 // GameShark Lite: Seek detection done ($02)
248 cdr.StatP &= ~STATUS_SEEK;
249
250 cdr.LidCheck = 0;
251 }
252}
253
254
255static void Check_Shell( int Irq )
256{
257 // check case open/close
258 if (cdr.LidCheck > 0)
259 {
260#ifdef CDR_LOG
261 CDR_LOG( "LidCheck\n" );
262#endif
263
264 // $20 = check lid state
265 if( cdr.LidCheck == 0x20 )
266 {
267 u32 i;
268
269 i = stat.Status;
270 if (CDR_getStatus(&stat) != -1)
271 {
aa1f7284 272 // BIOS hangs + BIOS error messages
273 //if (stat.Type == 0xff)
274 //cdr.Stat = DiskError;
9f8b032d 275
276 // case now open
aa1f7284 277 if (stat.Status & STATUS_SHELLOPEN)
9f8b032d 278 {
279 // Vib Ribbon: pre-CD swap
280 StopCdda();
281
282
283 // GameShark Lite: Death if DiskError happens
284 //
285 // Vib Ribbon: Needs DiskError for CD swap
286
287 if (Irq != CdlNop)
288 {
289 cdr.Stat = DiskError;
290
291 cdr.StatP |= STATUS_ERROR;
292 cdr.Result[0] |= STATUS_ERROR;
293 }
294
295 // GameShark Lite: Wants -exactly- $10
296 cdr.StatP |= STATUS_SHELLOPEN;
297 cdr.StatP &= ~STATUS_ROTATING;
298
299
300 CDRLID_INT( cdReadTime * 3 );
301 cdr.LidCheck = 0x10;
302
303
304 // GS CDX 3.3 = $11
305 }
306
307 // case just closed
308 else if ( i & STATUS_SHELLOPEN )
309 {
310 cdr.StatP |= STATUS_ROTATING;
311
312 CheckCdrom();
313
314
315 if( cdr.Stat == NoIntr )
316 cdr.Stat = Acknowledge;
317
318 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
319
320
321 // begin close-seek-ready cycle
322 CDRLID_INT( cdReadTime * 3 );
323 cdr.LidCheck = 0x30;
324
325
326 // GameShark Lite: Wants -exactly- $42, then $02
327 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
328 }
329
330 // case still closed - wait for recheck
331 else
332 {
333 CDRLID_INT( cdReadTime * 3 );
334 cdr.LidCheck = 0x10;
335 }
336 }
337 }
338
339
340 // GS CDX: clear all values but #1,#2
341 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
342 {
343 SetResultSize(16);
344 memset( cdr.Result, 0, 16 );
345
346 cdr.Result[0] = cdr.StatP;
347
348
349 // GS CDX: special return value
350 if( cdr.StatP & STATUS_SHELLOPEN )
351 {
352 cdr.Result[1] = 0x80;
353 }
354
355
356 if( cdr.Stat == NoIntr )
357 cdr.Stat = Acknowledge;
358
359 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
360 }
361 }
362}
363
364
365void Find_CurTrack() {
366 cdr.CurTrack = 0;
367
368 if (CDR_getTN(cdr.ResultTN) != -1) {
369 int lcv;
370
371 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
372 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
373 u32 sect1, sect2;
374
375#ifdef CDR_LOG___0
376 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
377 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
378 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
379 cdr.CurTrack );
380#endif
381
382 // find next track boundary - only need m:s accuracy
383 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
384 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
385
386 // Twisted Metal 4 - psx cdda pregap (2-sec)
387 // - fix in-game music
388 sect2 -= 75 * 2;
389
390 if( sect1 >= sect2 ) {
391 cdr.CurTrack++;
392 continue;
393 }
394 }
395
396 break;
397 }
398 }
399}
400
401static void ReadTrack( u8 *time ) {
402 cdr.Prev[0] = itob( time[0] );
403 cdr.Prev[1] = itob( time[1] );
404 cdr.Prev[2] = itob( time[2] );
ef79bbde
P		 405
406#ifdef CDR_LOG
407 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
408#endif
409 cdr.RErr = CDR_readTrack(cdr.Prev);
410}
411
ef79bbde
P		 412
413void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
414 cdr.Irq = irq;
9f8b032d 415 cdr.eCycle = ecycle;
416
417 // Doom: Force rescheduling
418 // - Fixes boot
419 CDR_INT(ecycle);
420}
421
422
423void Set_Track()
424{
425 if (CDR_getTN(cdr.ResultTN) != -1) {
426 int lcv;
427
428 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
429 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
430#ifdef CDR_LOG___0
431 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
432 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
433 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
434 cdr.CurTrack );
435#endif
436
437 // check if time matches track start (only need min, sec accuracy)
438 // - m:s:f vs f:s:m
439 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
440 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
441 // skip pregap frames
442 if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
443 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
444
445 break;
446 }
447 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
448 break;
449 }
450 }
451 }
452}
453
454
455static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
7f457614 456static void Create_Fake_Subq()
9f8b032d 457{
458 u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
459 int diff;
460
461 if (CDR_getTN(cdr.ResultTN) == -1) return;
462 if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
463 pregap = 150;
464 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
465 } else {
466 // last track - cd size
467 pregap = 0;
468 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
469 }
470
471 if( cdr.Play == TRUE ) {
472 temp_cur[0] = cdr.SetSectorPlay[0];
473 temp_cur[1] = cdr.SetSectorPlay[1];
474 temp_cur[2] = cdr.SetSectorPlay[2];
475 } else {
476 temp_cur[0] = btoi( cdr.Prev[0] );
477 temp_cur[1] = btoi( cdr.Prev[1] );
478 temp_cur[2] = btoi( cdr.Prev[2] );
479 }
480
481 fake_subq_real[0] = temp_cur[0];
482 fake_subq_real[1] = temp_cur[1];
483 fake_subq_real[2] = temp_cur[2];
484
485 temp_next[0] = cdr.ResultTD[2];
486 temp_next[1] = cdr.ResultTD[1];
487 temp_next[2] = cdr.ResultTD[0];
488
489
490 // flag- next track
491 if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
492 fake_subq_change = 1;
493
494 cdr.CurTrack++;
495
496 // end cd
497 if( pregap == 0 ) StopCdda();
498 }
499
500 //////////////////////////////////////////////////
501 //////////////////////////////////////////////////
502
503 // repair
504 if( cdr.CurTrack <= cdr.ResultTN[1] ) {
505 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
506 } else {
507 // last track - cd size
508 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
509 }
510
511 temp_start[0] = cdr.ResultTD[2];
512 temp_start[1] = cdr.ResultTD[1];
513 temp_start[2] = cdr.ResultTD[0];
514
515
516#ifdef CDR_LOG
517 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
518 temp_cur[0], temp_cur[1], temp_cur[2],
519 temp_start[0], temp_start[1], temp_start[2],
520 temp_next[0], temp_next[1], temp_next[2]);
521#endif
522
523
524
525 // local time - pregap / real
526 diff = msf2sec(temp_cur) - msf2sec( temp_start );
527 if( diff < 0 ) {
528 fake_subq_index = 0;
529
530 sec2msf( -diff, fake_subq_local );
ef79bbde 531 } else {
9f8b032d 532 fake_subq_index = 1;
533
534 sec2msf( diff, fake_subq_local );
ef79bbde
P		 535 }
536}
537
9f8b032d 538
7f457614 539static void cdrPlayInterrupt_Autopause()
540{
541 struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
542 if (subq != NULL ) {
543#ifdef CDR_LOG
544 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
545 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
546#endif
547
548 /*
549 CDDA Autopause
550
551 Silhouette Mirage ($3)
552 Tomb Raider 1 ($7)
553 */
554
555 if( cdr.CurTrack >= btoi( subq->TrackNumber ) )
556 return;
557 } else {
558 Create_Fake_Subq();
559#ifdef CDR_LOG___0
560 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
561 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
562#endif
563
564 if( !fake_subq_change )
565 return;
566
567 fake_subq_change = 0;
568 }
569
570 if (cdr.Mode & MODE_AUTOPAUSE) {
571#ifdef CDR_LOG
572 CDR_LOG( "CDDA STOP\n" );
573#endif
574
575 // Magic the Gathering
576 // - looping territory cdda
577
578 // ...?
579 //cdr.ResultReady = 1;
580 //cdr.Stat = DataReady;
581 cdr.Stat = DataEnd;
582 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
583
584 StopCdda();
585 }
586 if (cdr.Mode & MODE_REPORT) {
587 // rearmed note: PCSX-Reloaded does this for every sector,
588 // but we try to get away with only track change here.
589 memset( cdr.Result, 0, 8 );
590 cdr.Result[0] |= 0x10;
591
592 if (subq != NULL) {
593#ifdef CDR_LOG
594 CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
595 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
596#endif
597 cdr.CurTrack = btoi( subq->TrackNumber );
598
599 // BIOS CD Player: data already BCD format
600 cdr.Result[1] = subq->TrackNumber;
601 cdr.Result[2] = subq->IndexNumber;
602
603 cdr.Result[3] = subq->AbsoluteAddress[0];
604 cdr.Result[4] = subq->AbsoluteAddress[1];
605 cdr.Result[5] = subq->AbsoluteAddress[2];
606 } else {
607#ifdef CDR_LOG___0
608 CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
609 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
610#endif
611
612 // track # / index #
613 cdr.Result[1] = itob(cdr.CurTrack);
614 cdr.Result[2] = itob(fake_subq_index);
615 // absolute
616 cdr.Result[3] = itob( fake_subq_real[0] );
617 cdr.Result[4] = itob( fake_subq_real[1] );
618 cdr.Result[5] = itob( fake_subq_real[2] );
619 }
620
621 // Rayman: Logo freeze (resultready + dataready)
622 cdr.ResultReady = 1;
623 cdr.Stat = DataReady;
624
625 SetResultSize(8);
626 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
627 }
628}
629
630void cdrPlayInterrupt()
631{
632 if( !cdr.Play ) return;
633
634#ifdef CDR_LOG
635 CDR_LOG( "CDDA - %d:%d:%d\n",
636 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
637#endif
638 CDRPLAY_INT( cdReadTime );
639
640 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
641 cdrPlayInterrupt_Autopause();
642
643 cdr.SetSectorPlay[2]++;
644 if (cdr.SetSectorPlay[2] == 75) {
645 cdr.SetSectorPlay[2] = 0;
646 cdr.SetSectorPlay[1]++;
647 if (cdr.SetSectorPlay[1] == 60) {
648 cdr.SetSectorPlay[1] = 0;
649 cdr.SetSectorPlay[0]++;
650 }
651 }
652
653 //Check_Shell(0);
654}
655
ef79bbde
P		 656void cdrInterrupt() {
657 int i;
658 unsigned char Irq = cdr.Irq;
7f457614 659 struct SubQ *subq;
ef79bbde 660
9f8b032d 661 // Reschedule IRQ
ef79bbde 662 if (cdr.Stat) {
9f8b032d 663 CDR_INT( 0x100 );
ef79bbde
P		 664 return;
665 }
666
667 cdr.Irq = 0xff;
668 cdr.Ctrl &= ~0x80;
669
670 switch (Irq) {
671 case CdlSync:
672 SetResultSize(1);
9f8b032d 673 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 674 cdr.Result[0] = cdr.StatP;
675 cdr.Stat = Acknowledge;
676 break;
677
678 case CdlNop:
679 SetResultSize(1);
680 cdr.Result[0] = cdr.StatP;
681 cdr.Stat = Acknowledge;
9f8b032d 682
683 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 684 break;
685
686 case CdlSetloc:
687 cdr.CmdProcess = 0;
688 SetResultSize(1);
9f8b032d 689 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 690 cdr.Result[0] = cdr.StatP;
691 cdr.Stat = Acknowledge;
692 break;
693
694 case CdlPlay:
9f8b032d 695 fake_subq_change = 0;
696
697 if( cdr.Seeked == FALSE ) {
698 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
699 cdr.Seeked = TRUE;
700 }
701
702 /*
703 Rayman: detect track changes
704 - fixes logo freeze
705
706 Twisted Metal 2: skip PREGAP + starting accurate SubQ
707 - plays tracks without retry play
708
709 Wild 9: skip PREGAP + starting accurate SubQ
710 - plays tracks without retry play
711 */
696c9530 712 /* unneeded with correct cdriso?
9f8b032d 713 Set_Track();
696c9530 714 */
9f8b032d 715 Find_CurTrack();
716 ReadTrack( cdr.SetSectorPlay );
717
9f8b032d 718 // GameShark CD Player: Calls 2x + Play 2x
719 if( cdr.FastBackward || cdr.FastForward ) {
720 if( cdr.FastForward ) cdr.FastForward--;
721 if( cdr.FastBackward ) cdr.FastBackward--;
722
723 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
724 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
725 cdr.SetSectorPlay[0] = stat.Time[0];
726 cdr.SetSectorPlay[1] = stat.Time[1];
727 cdr.SetSectorPlay[2] = stat.Time[2];
728 }
729 }
730 }
731
732
733 if (!Config.Cdda) {
734 // BIOS CD Player
735 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
736
737 // GameShark CD Player: Resume play
738 if( cdr.ParamC == 0 ) {
739#ifdef CDR_LOG___0
740 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
741 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
742#endif
743
744 //CDR_play( cdr.SetSectorPlay );
745 }
746 else
747 {
748 // BIOS CD Player: Resume play
749 if( cdr.Param[0] == 0 ) {
750#ifdef CDR_LOG___0
751 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
752 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
753#endif
754
755 //CDR_play( cdr.SetSectorPlay );
756 }
757 else {
758#ifdef CDR_LOG___0
759 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
760 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
761#endif
762
763 // BIOS CD Player: Allow track replaying
764 StopCdda();
765
766
767 cdr.CurTrack = btoi( cdr.Param[0] );
768
769 if (CDR_getTN(cdr.ResultTN) != -1) {
770 // check last track
771 if (cdr.CurTrack > cdr.ResultTN[1])
772 cdr.CurTrack = cdr.ResultTN[1];
773
774 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
775 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
776 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
777 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
778
779 // reset data
780 Set_Track();
781 Find_CurTrack();
782 ReadTrack( cdr.SetSectorPlay );
783
784 //CDR_play(cdr.SetSectorPlay);
785 }
786 }
787 }
788 }
789 }
790
791
792 // Vib Ribbon: gameplay checks flag
793 cdr.StatP &= ~STATUS_SEEK;
794
795
ef79bbde
P		 796 cdr.CmdProcess = 0;
797 SetResultSize(1);
9f8b032d 798 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 799 cdr.Result[0] = cdr.StatP;
800 cdr.Stat = Acknowledge;
9f8b032d 801
802 cdr.StatP |= STATUS_PLAY;
803
804
805 // BIOS player - set flag again
806 cdr.Play = TRUE;
807
7f457614 808 CDRPLAY_INT( cdReadTime );
ef79bbde
P		 809 break;
810
9f8b032d 811 case CdlForward:
ef79bbde
P		 812 cdr.CmdProcess = 0;
813 SetResultSize(1);
9f8b032d 814 cdr.StatP |= STATUS_ROTATING;
815 cdr.Result[0] = cdr.StatP;
816 cdr.Stat = Complete;
817
818
819 // GameShark CD Player: Calls 2x + Play 2x
820 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
821 else cdr.FastForward++;
822
823 cdr.FastBackward = 0;
ef79bbde
P		 824 break;
825
9f8b032d 826 case CdlBackward:
ef79bbde
P		 827 cdr.CmdProcess = 0;
828 SetResultSize(1);
9f8b032d 829 cdr.StatP |= STATUS_ROTATING;
830 cdr.Result[0] = cdr.StatP;
831 cdr.Stat = Complete;
832
833
834 // GameShark CD Player: Calls 2x + Play 2x
835 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
836 else cdr.FastBackward++;
837
838 cdr.FastForward = 0;
ef79bbde
P		 839 break;
840
9f8b032d 841 case CdlStandby:
ef79bbde
P		 842 cdr.CmdProcess = 0;
843 SetResultSize(1);
9f8b032d 844 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 845 cdr.Result[0] = cdr.StatP;
846 cdr.Stat = Complete;
847 break;
848
849 case CdlStop:
850 cdr.CmdProcess = 0;
851 SetResultSize(1);
9f8b032d 852 cdr.StatP &= ~STATUS_ROTATING;
ef79bbde
P		 853 cdr.Result[0] = cdr.StatP;
854 cdr.Stat = Complete;
855// cdr.Stat = Acknowledge;
856
9f8b032d 857 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 858 break;
859
860 case CdlPause:
861 SetResultSize(1);
862 cdr.Result[0] = cdr.StatP;
9f8b032d 863 cdr.Stat = Acknowledge;
864
12228917 865 /*
866 Gundam Battle Assault 2: much slower (*)
867 - Fixes boot, gameplay
868
869 Hokuto no Ken 2: slower
870 - Fixes intro + subtitles
871
872 InuYasha - Feudal Fairy Tale: slower
873 - Fixes battles
874 */
875 AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
ef79bbde
P		 876 cdr.Ctrl |= 0x80;
877 break;
878
879 case CdlPause + 0x20:
880 SetResultSize(1);
9f8b032d 881 cdr.StatP &= ~STATUS_READ;
882 cdr.StatP |= STATUS_ROTATING;
ef79bbde 883 cdr.Result[0] = cdr.StatP;
9f8b032d 884 cdr.Stat = Complete;
ef79bbde
P		 885 break;
886
9f8b032d 887 case CdlInit:
ef79bbde 888 SetResultSize(1);
9f8b032d 889 cdr.StatP = STATUS_ROTATING;
ef79bbde 890 cdr.Result[0] = cdr.StatP;
9f8b032d 891 cdr.Stat = Acknowledge;
ef79bbde 892// if (!cdr.Init) {
9f8b032d 893 AddIrqQueue(CdlInit + 0x20, 0x800);
ef79bbde
P		 894// }
895 break;
896
897 case CdlInit + 0x20:
898 SetResultSize(1);
899 cdr.Result[0] = cdr.StatP;
9f8b032d 900 cdr.Stat = Complete;
ef79bbde
P		 901 cdr.Init = 1;
902 break;
903
9f8b032d 904 case CdlMute:
ef79bbde 905 SetResultSize(1);
9f8b032d 906 cdr.StatP |= STATUS_ROTATING;
907 cdr.Result[0] = cdr.StatP;
908 cdr.Stat = Acknowledge;
ef79bbde
P		 909 break;
910
9f8b032d 911 case CdlDemute:
ef79bbde 912 SetResultSize(1);
9f8b032d 913 cdr.StatP |= STATUS_ROTATING;
914 cdr.Result[0] = cdr.StatP;
915 cdr.Stat = Acknowledge;
ef79bbde
P		 916 break;
917
9f8b032d 918 case CdlSetfilter:
ef79bbde 919 SetResultSize(1);
9f8b032d 920 cdr.StatP |= STATUS_ROTATING;
921 cdr.Result[0] = cdr.StatP;
922 cdr.Stat = Acknowledge;
923 break;
ef79bbde
P		 924
925 case CdlSetmode:
926 SetResultSize(1);
9f8b032d 927 cdr.StatP |= STATUS_ROTATING;
928 cdr.Result[0] = cdr.StatP;
929 cdr.Stat = Acknowledge;
930 break;
ef79bbde 931
9f8b032d 932 case CdlGetmode:
ef79bbde 933 SetResultSize(6);
9f8b032d 934 cdr.StatP |= STATUS_ROTATING;
935 cdr.Result[0] = cdr.StatP;
936 cdr.Result[1] = cdr.Mode;
937 cdr.Result[2] = cdr.File;
938 cdr.Result[3] = cdr.Channel;
939 cdr.Result[4] = 0;
940 cdr.Result[5] = 0;
941 cdr.Stat = Acknowledge;
942 break;
ef79bbde 943
9f8b032d 944 case CdlGetlocL:
ef79bbde 945 SetResultSize(8);
9f8b032d 946 for (i = 0; i < 8; i++)
ef79bbde 947 cdr.Result[i] = cdr.Transfer[i];
9f8b032d 948 cdr.Stat = Acknowledge;
949 break;
ef79bbde
P		 950
951 case CdlGetlocP:
9f8b032d 952 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
953 SetResultSize(17);
954 memset( cdr.Result, 0, 16 );
955
ef79bbde
P		 956 subq = (struct SubQ *)CDR_getBufferSub();
957
958 if (subq != NULL) {
959 cdr.Result[0] = subq->TrackNumber;
960 cdr.Result[1] = subq->IndexNumber;
961 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
962 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
963
9f8b032d 964
965 // subQ integrity check - data only (skip audio)
966 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
ef79bbde
P		 967 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
968 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
969 }
9f8b032d 970 }
ef79bbde 971 } else {
7f457614 972 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
973 Create_Fake_Subq();
ef79bbde 974
ef79bbde 975
9f8b032d 976 // track # / index #
977 cdr.Result[0] = itob(cdr.CurTrack);
978 cdr.Result[1] = itob(fake_subq_index);
ef79bbde 979
9f8b032d 980 // local
981 cdr.Result[2] = itob( fake_subq_local[0] );
982 cdr.Result[3] = itob( fake_subq_local[1] );
983 cdr.Result[4] = itob( fake_subq_local[2] );
ef79bbde 984
9f8b032d 985 // absolute
986 cdr.Result[5] = itob( fake_subq_real[0] );
987 cdr.Result[6] = itob( fake_subq_real[1] );
988 cdr.Result[7] = itob( fake_subq_real[2] );
ef79bbde
P		 989 }
990
9f8b032d 991 // redump.org - wipe time
ae4e7dc9 992 if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
9f8b032d 993 memset( cdr.Result+2, 0, 6 );
994 }
9f8b032d 995
ef79bbde
P		 996 cdr.Stat = Acknowledge;
997 break;
998
9f8b032d 999 case CdlGetTN:
1000 // 5-Star Racing: don't stop CDDA
1001 //
1002 // Vib Ribbon: CD swap
1003 StopReading();
1004
ef79bbde
P		 1005 cdr.CmdProcess = 0;
1006 SetResultSize(3);
9f8b032d 1007 cdr.StatP |= STATUS_ROTATING;
1008 cdr.Result[0] = cdr.StatP;
1009 if (CDR_getTN(cdr.ResultTN) == -1) {
ef79bbde 1010 cdr.Stat = DiskError;
9f8b032d 1011 cdr.Result[0] |= STATUS_ERROR;
1012 } else {
1013 cdr.Stat = Acknowledge;
1014 cdr.Result[1] = itob(cdr.ResultTN[0]);
1015 cdr.Result[2] = itob(cdr.ResultTN[1]);
1016 }
1017 break;
ef79bbde 1018
9f8b032d 1019 case CdlGetTD:
ef79bbde
P		 1020 cdr.CmdProcess = 0;
1021 cdr.Track = btoi(cdr.Param[0]);
1022 SetResultSize(4);
9f8b032d 1023 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 1024 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1025 cdr.Stat = DiskError;
9f8b032d 1026 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1027 } else {
1028 cdr.Stat = Acknowledge;
1029 cdr.Result[0] = cdr.StatP;
1030 cdr.Result[1] = itob(cdr.ResultTD[2]);
1031 cdr.Result[2] = itob(cdr.ResultTD[1]);
1032 cdr.Result[3] = itob(cdr.ResultTD[0]);
1033 }
1034 break;
1035
9f8b032d 1036 case CdlSeekL:
ef79bbde 1037 SetResultSize(1);
9f8b032d 1038 cdr.StatP |= STATUS_ROTATING;
1039 cdr.Result[0] = cdr.StatP;
1040 cdr.StatP |= STATUS_SEEK;
1041 cdr.Stat = Acknowledge;
1042
1043 /*
1044 Crusaders of Might and Magic = 0.5x-4x
1045 - fix cutscene speech start
1046
1047 Eggs of Steel = 2x-?
1048 - fix new game
1049
1050 Medievil = ?-4x
1051 - fix cutscene speech
1052
1053 Rockman X5 = 0.5-4x
1054 - fix capcom logo
1055 */
1056 AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
ef79bbde
P		 1057 break;
1058
9f8b032d 1059 case CdlSeekL + 0x20:
ef79bbde 1060 SetResultSize(1);
9f8b032d 1061 cdr.StatP |= STATUS_ROTATING;
1062 cdr.StatP &= ~STATUS_SEEK;
1063 cdr.Result[0] = cdr.StatP;
1064 cdr.Seeked = TRUE;
1065 cdr.Stat = Complete;
1066
1067
1068 // Mega Man Legends 2: must update read cursor for getlocp
1069 ReadTrack( cdr.SetSector );
ef79bbde
P		 1070 break;
1071
9f8b032d 1072 case CdlSeekP:
ef79bbde 1073 SetResultSize(1);
9f8b032d 1074 cdr.StatP |= STATUS_ROTATING;
1075 cdr.Result[0] = cdr.StatP;
1076 cdr.StatP |= STATUS_SEEK;
1077 cdr.Stat = Acknowledge;
1078 AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
ef79bbde
P		 1079 break;
1080
9f8b032d 1081 case CdlSeekP + 0x20:
ef79bbde 1082 SetResultSize(1);
9f8b032d 1083 cdr.StatP |= STATUS_ROTATING;
1084 cdr.StatP &= ~STATUS_SEEK;
1085 cdr.Result[0] = cdr.StatP;
1086 cdr.Stat = Complete;
1087 cdr.Seeked = TRUE;
1088
1089 // GameShark Music Player
1090 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1091
1092 // Tomb Raider 2: must update read cursor for getlocp
1093 Find_CurTrack();
1094 ReadTrack( cdr.SetSectorPlay );
ef79bbde
P		 1095 break;
1096
1097 case CdlTest:
9f8b032d 1098 cdr.Stat = Acknowledge;
1099 switch (cdr.Param[0]) {
1100 case 0x20: // System Controller ROM Version
ef79bbde
P		 1101 SetResultSize(4);
1102 memcpy(cdr.Result, Test20, 4);
1103 break;
1104 case 0x22:
1105 SetResultSize(8);
1106 memcpy(cdr.Result, Test22, 4);
1107 break;
1108 case 0x23: case 0x24:
1109 SetResultSize(8);
1110 memcpy(cdr.Result, Test23, 4);
1111 break;
9f8b032d 1112 }
ef79bbde
P		 1113 break;
1114
9f8b032d 1115 case CdlID:
ef79bbde 1116 SetResultSize(1);
9f8b032d 1117 cdr.StatP |= STATUS_ROTATING;
1118 cdr.Result[0] = cdr.StatP;
1119 cdr.Stat = Acknowledge;
1120 AddIrqQueue(CdlID + 0x20, 0x800);
ef79bbde
P		 1121 break;
1122
1123 case CdlID + 0x20:
1124 SetResultSize(8);
9f8b032d 1125
1126 if (CDR_getStatus(&stat) == -1) {
1127 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1128 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1129 }
1130 else {
1131 if (stat.Type == 2) {
1132 // Music CD
1133 cdr.Result[0] = 0x08;
1134 cdr.Result[1] = 0x10;
1135
1136 cdr.Result[1] |= 0x80;
1137 }
1138 else {
1139 // Data CD
1140 if (CdromId[0] == '\0') {
1141 cdr.Result[0] = 0x00;
1142 cdr.Result[1] = 0x80;
1143 }
1144 else {
1145 cdr.Result[0] = 0x08;
1146 cdr.Result[1] = 0x00;
1147 }
1148 }
1149 }
1150
ef79bbde
P		 1151 cdr.Result[2] = 0x00;
1152 cdr.Result[3] = 0x00;
1153 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1154 cdr.Stat = Complete;
1155 break;
1156
1157 case CdlReset:
1158 SetResultSize(1);
9f8b032d 1159 cdr.StatP = STATUS_ROTATING;
ef79bbde 1160 cdr.Result[0] = cdr.StatP;
9f8b032d 1161 cdr.Stat = Acknowledge;
ef79bbde
P		 1162 break;
1163
9f8b032d 1164 case CdlReadT:
1165 SetResultSize(1);
1166 cdr.StatP |= STATUS_ROTATING;
1167 cdr.Result[0] = cdr.StatP;
1168 cdr.Stat = Acknowledge;
1169 AddIrqQueue(CdlReadT + 0x20, 0x800);
1170 break;
1171
1172 case CdlReadT + 0x20:
1173 SetResultSize(1);
1174 cdr.StatP |= STATUS_ROTATING;
1175 cdr.Result[0] = cdr.StatP;
1176 cdr.Stat = Complete;
1177 break;
1178
1179 case CdlReadToc:
ef79bbde 1180 SetResultSize(1);
9f8b032d 1181 cdr.StatP |= STATUS_ROTATING;
1182 cdr.Result[0] = cdr.StatP;
1183 cdr.Stat = Acknowledge;
1184 AddIrqQueue(CdlReadToc + 0x20, 0x800);
ef79bbde
P		 1185 break;
1186
9f8b032d 1187 case CdlReadToc + 0x20:
ef79bbde 1188 SetResultSize(1);
9f8b032d 1189 cdr.StatP |= STATUS_ROTATING;
1190 cdr.Result[0] = cdr.StatP;
1191 cdr.Stat = Complete;
ef79bbde
P		 1192 break;
1193
1194 case AUTOPAUSE:
1195 cdr.OCUP = 0;
1196/* SetResultSize(1);
1197 StopCdda();
1198 StopReading();
1199 cdr.OCUP = 0;
9f8b032d 1200 cdr.StatP&=~0x20;
ef79bbde 1201 cdr.StatP|= 0x2;
9f8b032d 1202 cdr.Result[0] = cdr.StatP;
1203 cdr.Stat = DataEnd;
ef79bbde
P		 1204*/ AddIrqQueue(CdlPause, 0x800);
1205 break;
1206
1207 case READ_ACK:
1208 if (!cdr.Reading) return;
1209
9f8b032d 1210
1211 // Fighting Force 2 - update subq time immediately
1212 // - fixes new game
1213 ReadTrack( cdr.SetSector );
1214
1215
1216 // Crusaders of Might and Magic - update getlocl now
1217 // - fixes cutscene speech
1218 {
1219 u8 *buf = CDR_getBuffer();
a48ae3a7 1220 if (buf != NULL)
1221 memcpy(cdr.Transfer, buf, 8);
9f8b032d 1222 }
1223
1224
1225 /*
1226 Duke Nukem: Land of the Babes - seek then delay read for one frame
1227 - fixes cutscenes
1228 */
1229
ef79bbde
P		 1230 if (!cdr.Seeked) {
1231 cdr.Seeked = TRUE;
ef79bbde 1232
9f8b032d 1233 cdr.StatP |= STATUS_SEEK;
1234 cdr.StatP &= ~STATUS_READ;
1235
1236 // Crusaders of Might and Magic - use short time
1237 // - fix cutscene speech (startup)
1238
1239 // ??? - use more accurate seek time later
1240 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1241 } else {
1242 cdr.StatP |= STATUS_READ;
1243 cdr.StatP &= ~STATUS_SEEK;
1244
1245 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1246 }
ef79bbde 1247
ef79bbde 1248 SetResultSize(1);
9f8b032d 1249 cdr.StatP |= STATUS_ROTATING;
1250 cdr.Result[0] = cdr.StatP;
1251 cdr.Stat = Acknowledge;
ef79bbde
P		 1252 break;
1253
ef79bbde
P		 1254 case 0xff:
1255 return;
1256
1257 default:
1258 cdr.Stat = Complete;
1259 break;
1260 }
1261
9f8b032d 1262 Check_Shell( Irq );
1263
ef79bbde
P		 1264 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1265 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1266 }
1267
1268#ifdef CDR_LOG
1269 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1270#endif
1271}
1272
1273void cdrReadInterrupt() {
1274 u8 *buf;
1275
1276 if (!cdr.Reading)
1277 return;
1278
9f8b032d 1279 if (cdr.Irq || cdr.Stat) {
1280 CDREAD_INT(0x100);
ef79bbde
P		 1281 return;
1282 }
1283
1284#ifdef CDR_LOG
1285 CDR_LOG("cdrReadInterrupt() Log: KEY END");
1286#endif
1287
9f8b032d 1288 cdr.OCUP = 1;
ef79bbde 1289 SetResultSize(1);
9f8b032d 1290 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1291 cdr.StatP &= ~STATUS_SEEK;
1292 cdr.Result[0] = cdr.StatP;
ef79bbde 1293
9f8b032d 1294 ReadTrack( cdr.SetSector );
ef79bbde
P		 1295
1296 buf = CDR_getBuffer();
1297 if (buf == NULL)
1298 cdr.RErr = -1;
1299
1300 if (cdr.RErr == -1) {
1301#ifdef CDR_LOG
1302 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1303#endif
1304 memset(cdr.Transfer, 0, DATA_SIZE);
1305 cdr.Stat = DiskError;
9f8b032d 1306 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1307 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1308 return;
1309 }
1310
1311 memcpy(cdr.Transfer, buf, DATA_SIZE);
1312 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1313
ef79bbde
P		 1314
1315#ifdef CDR_LOG
1316 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1317#endif
1318
9f8b032d 1319 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1320 // Firemen 2: Multi-XA files - briefings, cutscenes
1321 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1322 cdr.File = cdr.Transfer[4 + 0];
1323 cdr.Channel = cdr.Transfer[4 + 1];
1324 }
1325
ef79bbde 1326 if ((cdr.Transfer[4 + 2] & 0x4) &&
9f8b032d 1327 (cdr.Transfer[4 + 1] == cdr.Channel) &&
ef79bbde
P		 1328 (cdr.Transfer[4 + 0] == cdr.File)) {
1329 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1330
1331 if (!ret) {
056d6759 1332 // only handle attenuator basic channel switch for now
1333 if (cdr.Xa.stereo) {
1334 int i;
1335 if ((cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1336 && !(cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1337 {
1338 for (i = 0; i < cdr.Xa.nsamples; i++)
1339 cdr.Xa.pcm[i*2 + 1] = cdr.Xa.pcm[i*2];
1340 }
1341 else if (!(cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1342 && (cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1343 {
1344 for (i = 0; i < cdr.Xa.nsamples; i++)
1345 cdr.Xa.pcm[i*2] = cdr.Xa.pcm[i*2 + 1];
1346 }
1347 }
1348
ef79bbde
P		 1349 SPU_playADPCMchannel(&cdr.Xa);
1350 cdr.FirstSector = 0;
9f8b032d 1351
2f246254 1352#if 0
9f8b032d 1353 // Crash Team Racing: music, speech
2f246254 1354 // - done using cdda decoded buffer (spu irq)
1355 // - don't do here
9f8b032d 1356
1357 // signal ADPCM data ready
1358 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
2f246254 1359#endif
ef79bbde
P		 1360 }
1361 else cdr.FirstSector = -1;
1362 }
1363 }
1364
1365 cdr.SetSector[2]++;
9f8b032d 1366 if (cdr.SetSector[2] == 75) {
1367 cdr.SetSector[2] = 0;
1368 cdr.SetSector[1]++;
1369 if (cdr.SetSector[1] == 60) {
1370 cdr.SetSector[1] = 0;
1371 cdr.SetSector[0]++;
1372 }
1373 }
1374
1375 cdr.Readed = 0;
1376
1377 // G-Police: Don't autopause ADPCM even if mode set (music)
1378 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1379 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
ef79bbde
P		 1380#ifdef CDR_LOG
1381 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1382#endif
9f8b032d 1383// AddIrqQueue(AUTOPAUSE, 0x2000);
1384 AddIrqQueue(CdlPause, 0x2000);
ef79bbde
P		 1385 }
1386 else {
9f8b032d 1387 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1388 }
1389
1390 /*
1391 Croc 2: $40 - only FORM1 (*)
1392 Judge Dredd: $C8 - only FORM1 (*)
1393 Sim Theme Park - no adpcm at all (zero)
1394 */
1395
1396 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1397 cdr.Stat = DataReady;
1398 } else {
1399 // Breath of Fire 3 - fix inn sleeping
1400 // Rockman X5 - no music restart problem
1401 cdr.Stat = NoIntr;
ef79bbde
P		 1402 }
1403 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
9f8b032d 1404
1405 Check_Shell(0);
ef79bbde
P		 1406}
1407
1408/*
1409cdrRead0:
1410 bit 0 - 0 REG1 command send / 1 REG1 data read
1411 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1412 bit 2 - unknown
1413 bit 3 - unknown
1414 bit 4 - unknown
1415 bit 5 - 1 result ready
1416 bit 6 - 1 dma ready
1417 bit 7 - 1 command being processed
1418*/
1419
1420unsigned char cdrRead0(void) {
1421 if (cdr.ResultReady)
1422 cdr.Ctrl |= 0x20;
1423 else
1424 cdr.Ctrl &= ~0x20;
1425
1426 if (cdr.OCUP)
1427 cdr.Ctrl |= 0x40;
1428// else
1429// cdr.Ctrl &= ~0x40;
1430
1431 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1432 cdr.Ctrl |= 0x18;
1433
1434#ifdef CDR_LOG
1435 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1436#endif
1437
1438 return psxHu8(0x1800) = cdr.Ctrl;
1439}
1440
1441/*
1442cdrWrite0:
1443 0 - to send a command / 1 - to get the result
1444*/
1445
1446void cdrWrite0(unsigned char rt) {
1447#ifdef CDR_LOG
1448 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1449#endif
1450 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1451
9f8b032d 1452 if (rt == 0) {
ef79bbde
P		 1453 cdr.ParamP = 0;
1454 cdr.ParamC = 0;
1455 cdr.ResultReady = 0;
1456 }
1457}
1458
1459unsigned char cdrRead1(void) {
1460 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
9f8b032d 1461 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1462 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1463 cdr.ResultP++;
ef79bbde
P		 1464 if (cdr.ResultP == cdr.ResultC)
1465 cdr.ResultReady = 0;
1466 } else {
1467 psxHu8(0x1801) = 0;
1468 }
1469#ifdef CDR_LOG
1470 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1471#endif
1472 return psxHu8(0x1801);
1473}
1474
1475void cdrWrite1(unsigned char rt) {
1476 int i;
1477
1478#ifdef CDR_LOG
1479 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1480#endif
9f8b032d 1481
1482
1483 // Tekken: CDXA fade-out
1484 if( (cdr.Ctrl & 3) == 3 ) {
056d6759 1485 cdr.AttenuatorRight[0] = rt;
9f8b032d 1486 }
1487
1488
ef79bbde 1489// psxHu8(0x1801) = rt;
9f8b032d 1490 cdr.Cmd = rt;
ef79bbde
P		 1491 cdr.OCUP = 0;
1492
1493#ifdef CDRCMD_DEBUG
1494 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1495 if (cdr.ParamC) {
1496 SysPrintf(" Param[%d] = {", cdr.ParamC);
1497 for (i = 0; i < cdr.ParamC; i++)
1498 SysPrintf(" %x,", cdr.Param[i]);
1499 SysPrintf("}\n");
1500 } else {
1501 SysPrintf("\n");
1502 }
1503#endif
1504
1505 if (cdr.Ctrl & 0x1) return;
1506
9f8b032d 1507 switch (cdr.Cmd) {
ef79bbde 1508 case CdlSync:
9f8b032d 1509 cdr.Ctrl |= 0x80;
ef79bbde 1510 cdr.Stat = NoIntr;
9f8b032d 1511 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1512 break;
1513
1514 case CdlNop:
9f8b032d 1515 cdr.Ctrl |= 0x80;
ef79bbde 1516 cdr.Stat = NoIntr;
9f8b032d 1517
1518 // Twisted Metal 3 - fix music
1519 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1520 break;
1521
1522 case CdlSetloc:
9f8b032d 1523 StopReading();
1524 cdr.Seeked = FALSE;
1525 for (i = 0; i < 3; i++)
1526 cdr.SetSector[i] = btoi(cdr.Param[i]);
ef79bbde 1527 cdr.SetSector[3] = 0;
9f8b032d 1528
1529 /*
1530 if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1531 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1532 }*/
1533
1534 cdr.Ctrl |= 0x80;
ef79bbde 1535 cdr.Stat = NoIntr;
9f8b032d 1536 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1537 break;
1538
1539 case CdlPlay:
9f8b032d 1540 // Vib Ribbon: try same track again
1541 StopCdda();
1542
1543 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1544 if (CDR_getTN(cdr.ResultTN) != -1) {
1545 if (cdr.CurTrack > cdr.ResultTN[1])
1546 cdr.CurTrack = cdr.ResultTN[1];
1547 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1548 int tmp = cdr.ResultTD[2];
1549 cdr.ResultTD[2] = cdr.ResultTD[0];
1550 cdr.ResultTD[0] = tmp;
1551 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1552 }
ef79bbde 1553 }
9f8b032d 1554 } else if (!Config.Cdda) {
1555 CDR_play(cdr.SetSector);
1556 }
1557
1558 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1559 // - fixes ribbon timing + music CD mode
1560 //TODO?
1561 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1562
1563
1564 cdr.Play = TRUE;
1565
1566 cdr.StatP |= STATUS_SEEK;
1567 cdr.StatP &= ~STATUS_ROTATING;
1568
1569 cdr.Ctrl |= 0x80;
1570 cdr.Stat = NoIntr;
1571 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1572 break;
1573
1574 case CdlForward:
9f8b032d 1575 //if (cdr.CurTrack < 0xaa)
1576 // cdr.CurTrack++;
1577 cdr.Ctrl |= 0x80;
ef79bbde 1578 cdr.Stat = NoIntr;
9f8b032d 1579 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1580 break;
1581
1582 case CdlBackward:
9f8b032d 1583 //if (cdr.CurTrack > 1)
1584 //cdr.CurTrack--;
1585 cdr.Ctrl |= 0x80;
1586 cdr.Stat = NoIntr;
1587 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1588 break;
1589
1590 case CdlReadN:
9f8b032d 1591 cdr.Irq = 0;
1592 StopReading();
1593 cdr.Ctrl|= 0x80;
1594 cdr.Stat = NoIntr;
1595 StartReading(1, 0x800);
1596 break;
ef79bbde
P		 1597
1598 case CdlStandby:
9f8b032d 1599 StopCdda();
1600 StopReading();
1601 cdr.Ctrl |= 0x80;
1602 cdr.Stat = NoIntr;
1603 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1604 break;
1605
1606 case CdlStop:
9f8b032d 1607 // GameShark CD Player: Reset CDDA to track start
1608 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1609 cdr.SetSectorPlay[0] = stat.Time[0];
1610 cdr.SetSectorPlay[1] = stat.Time[1];
1611 cdr.SetSectorPlay[2] = stat.Time[2];
1612
1613 Find_CurTrack();
1614
1615
1616 // grab time for current track
1617 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1618
1619 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1620 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1621 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1622 }
1623
1624 StopCdda();
1625 StopReading();
1626
1627 cdr.Ctrl |= 0x80;
1628 cdr.Stat = NoIntr;
1629 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1630 break;
1631
1632 case CdlPause:
9f8b032d 1633 /*
1634 GameShark CD Player: save time for resume
1635
aa1f7284 1636 Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1637 */
ef79bbde 1638
9f8b032d 1639 StopCdda();
1640 StopReading();
1641 cdr.Ctrl |= 0x80;
1642 cdr.Stat = NoIntr;
1643
12228917 1644 AddIrqQueue(cdr.Cmd, 0x800);
9f8b032d 1645 break;
1646
1647 case CdlReset:
ef79bbde 1648 case CdlInit:
9f8b032d 1649 StopCdda();
1650 StopReading();
1651 cdr.Ctrl |= 0x80;
1652 cdr.Stat = NoIntr;
1653 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1654 break;
1655
1656 case CdlMute:
1657 cdr.Muted = TRUE;
9f8b032d 1658 cdr.Ctrl |= 0x80;
ef79bbde 1659 cdr.Stat = NoIntr;
9f8b032d 1660 AddIrqQueue(cdr.Cmd, 0x800);
1661
1662 // Duke Nukem - Time to Kill
1663 // - do not directly set cd-xa volume
1664 //SPU_writeRegister( H_CDLeft, 0x0000 );
1665 //SPU_writeRegister( H_CDRight, 0x0000 );
ef79bbde
P		 1666 break;
1667
1668 case CdlDemute:
1669 cdr.Muted = FALSE;
9f8b032d 1670 cdr.Ctrl |= 0x80;
ef79bbde 1671 cdr.Stat = NoIntr;
9f8b032d 1672 AddIrqQueue(cdr.Cmd, 0x800);
1673
1674 // Duke Nukem - Time to Kill
1675 // - do not directly set cd-xa volume
1676 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1677 //SPU_writeRegister( H_CDRight, 0x7f00 );
ef79bbde
P		 1678 break;
1679
1680 case CdlSetfilter:
1681 cdr.File = cdr.Param[0];
1682 cdr.Channel = cdr.Param[1];
9f8b032d 1683 cdr.Ctrl |= 0x80;
ef79bbde 1684 cdr.Stat = NoIntr;
9f8b032d 1685 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1686 break;
1687
1688 case CdlSetmode:
1689#ifdef CDR_LOG
9f8b032d 1690 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
ef79bbde
P		 1691#endif
1692 cdr.Mode = cdr.Param[0];
9f8b032d 1693 cdr.Ctrl |= 0x80;
ef79bbde 1694 cdr.Stat = NoIntr;
9f8b032d 1695 AddIrqQueue(cdr.Cmd, 0x800);
1696
1697 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1698 // - fixes choppy movie sound
1699 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1700 StopCdda();
ef79bbde
P		 1701 break;
1702
1703 case CdlGetmode:
9f8b032d 1704 cdr.Ctrl |= 0x80;
ef79bbde 1705 cdr.Stat = NoIntr;
9f8b032d 1706 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1707 break;
1708
1709 case CdlGetlocL:
9f8b032d 1710 cdr.Ctrl |= 0x80;
1711 cdr.Stat = NoIntr;
1712
1713 // Crusaders of Might and Magic - cutscene speech
1714 AddIrqQueue(cdr.Cmd, 0x800);
1715 break;
ef79bbde
P		 1716
1717 case CdlGetlocP:
9f8b032d 1718 cdr.Ctrl |= 0x80;
1719 cdr.Stat = NoIntr;
1720
1721 // GameShark CDX / Lite Player: pretty narrow time window
1722 // - doesn't always work due to time inprecision
1723 //AddIrqQueue(cdr.Cmd, 0x28);
1724
1725 // Tomb Raider 2 - cdda
53951880 1726 //AddIrqQueue(cdr.Cmd, 0x40);
1727
1728 // rearmed: the above works in pcsxr-svn, but breaks here
1729 // (TOCA world touring cars), perhaps some other code is not merged yet
1730 AddIrqQueue(cdr.Cmd, 0x1000);
ef79bbde
P		 1731 break;
1732
1733 case CdlGetTN:
9f8b032d 1734 cdr.Ctrl |= 0x80;
1735 cdr.Stat = NoIntr;
1736 //AddIrqQueue(cdr.Cmd, 0x800);
1737
1738 // GameShark CDX CD Player: very long time
1739 AddIrqQueue(cdr.Cmd, 0x100000);
1740 break;
ef79bbde
P		 1741
1742 case CdlGetTD:
9f8b032d 1743 cdr.Ctrl |= 0x80;
ef79bbde 1744 cdr.Stat = NoIntr;
9f8b032d 1745 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1746 break;
1747
1748 case CdlSeekL:
1749// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1750 cdr.Ctrl |= 0x80;
1751 cdr.Stat = NoIntr;
1752 AddIrqQueue(cdr.Cmd, 0x800);
1753
1754 StopCdda();
1755 StopReading();
1756
1757 break;
ef79bbde
P		 1758
1759 case CdlSeekP:
1760// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1761 cdr.Ctrl |= 0x80;
ef79bbde 1762 cdr.Stat = NoIntr;
9f8b032d 1763
1764 // Tomb Raider 2 - reset cdda
1765 StopCdda();
1766 StopReading();
1767
1768 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1769 break;
1770
9f8b032d 1771 // Destruction Derby: read TOC? GetTD after this
1772 case CdlReadT:
1773 cdr.Ctrl |= 0x80;
1774 cdr.Stat = NoIntr;
1775 AddIrqQueue(cdr.Cmd, 0x800);
1776 break;
1777
ef79bbde 1778 case CdlTest:
9f8b032d 1779 cdr.Ctrl |= 0x80;
ef79bbde 1780 cdr.Stat = NoIntr;
9f8b032d 1781 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1782 break;
1783
1784 case CdlID:
9f8b032d 1785 cdr.Ctrl |= 0x80;
ef79bbde 1786 cdr.Stat = NoIntr;
9f8b032d 1787 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1788 break;
1789
1790 case CdlReadS:
9f8b032d 1791 cdr.Irq = 0;
1792 StopReading();
1793 cdr.Ctrl |= 0x80;
1794 cdr.Stat = NoIntr;
1795 StartReading(2, 0x800);
1796 break;
ef79bbde
P		 1797
1798 case CdlReadToc:
9f8b032d 1799 cdr.Ctrl |= 0x80;
ef79bbde 1800 cdr.Stat = NoIntr;
9f8b032d 1801 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1802 break;
1803
1804 default:
1805#ifdef CDR_LOG
9f8b032d 1806 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
ef79bbde 1807#endif
9f8b032d 1808 return;
1809 }
ef79bbde
P		 1810 if (cdr.Stat != NoIntr) {
1811 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1812 }
1813}
1814
1815unsigned char cdrRead2(void) {
1816 unsigned char ret;
1817
1818 if (cdr.Readed == 0) {
1819 ret = 0;
1820 } else {
1821 ret = *cdr.pTransfer++;
1822 }
1823
1824#ifdef CDR_LOG
1825 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1826#endif
1827 return ret;
1828}
1829
1830void cdrWrite2(unsigned char rt) {
1831#ifdef CDR_LOG
1832 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1833#endif
9f8b032d 1834
1835 // Tekken: CDXA fade-out
1836 if( (cdr.Ctrl & 3) == 2 ) {
056d6759 1837 cdr.AttenuatorLeft[0] = rt;
9f8b032d 1838 }
1839 else if( (cdr.Ctrl & 3) == 3 ) {
056d6759 1840 cdr.AttenuatorRight[1] = rt;
9f8b032d 1841 }
1842
1843
1844 if (cdr.Ctrl & 0x1) {
ef79bbde
P		 1845 switch (rt) {
1846 case 0x07:
9f8b032d 1847 cdr.ParamP = 0;
ef79bbde
P		 1848 cdr.ParamC = 0;
1849 cdr.ResultReady = 1; //0;
1850 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1851 break;
1852
1853 default:
1854 cdr.Reg2 = rt;
1855 break;
1856 }
9f8b032d 1857 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
ef79bbde
P		 1858 cdr.Param[cdr.ParamP++] = rt;
1859 cdr.ParamC++;
1860 }
1861}
1862
1863unsigned char cdrRead3(void) {
1864 if (cdr.Stat) {
1865 if (cdr.Ctrl & 0x1)
1866 psxHu8(0x1803) = cdr.Stat | 0xE0;
1867 else
1868 psxHu8(0x1803) = 0xff;
1869 } else {
1870 psxHu8(0x1803) = 0;
1871 }
1872#ifdef CDR_LOG
1873 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1874#endif
1875 return psxHu8(0x1803);
1876}
1877
1878void cdrWrite3(unsigned char rt) {
1879#ifdef CDR_LOG
1880 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1881#endif
056d6759 1882
9f8b032d 1883 // Tekken: CDXA fade-out
1884 if( (cdr.Ctrl & 3) == 2 ) {
1885 cdr.AttenuatorLeft[1] = rt;
1886 }
1887 else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1888#ifdef CDR_LOG
1889 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1890 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1891 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1892#endif
1893 }
056d6759 1894
9f8b032d 1895
1896 // GameShark CDX CD Player: Irq timing mania
1897 if( rt == 0 &&
1898 cdr.Irq != 0 && cdr.Irq != 0xff &&
1899 cdr.ResultReady == 0 ) {
1900
1901 // GS CDX: ~0x28 cycle timing - way too precise
1902 if( cdr.Irq == CdlGetlocP ) {
1903 cdrInterrupt();
1904
1905 psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1906 }
1907 }
1908
1909
1910 if (rt == 0x07 && cdr.Ctrl & 0x1) {
ef79bbde
P		 1911 cdr.Stat = 0;
1912
1913 if (cdr.Irq == 0xff) {
1914 cdr.Irq = 0;
1915 return;
1916 }
9f8b032d 1917
aa40e1b8 1918 // XA streaming - incorrect timing because of this reschedule
1919 // - Final Fantasy Tactics
1920 // - various other games
1921
9f8b032d 1922 if (cdr.Reading && !cdr.ResultReady) {
4955e9d0 1923 int left = psxRegs.intCycle[PSXINT_CDREAD].sCycle + psxRegs.intCycle[PSXINT_CDREAD].cycle - psxRegs.cycle;
1924 int time = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
4feed8d3 1925 if (Config.CdrReschedule != 2)
1926 if (left < time / 2 || Config.CdrReschedule) { // rearmed guesswork hack
1927 //printf("-- resched %d -> %d\n", left, time);
1928 CDREAD_INT(time);
4955e9d0 1929 }
9f8b032d 1930 }
ef79bbde
P		 1931
1932 return;
1933 }
9f8b032d 1934
ef79bbde
P		 1935 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1936 cdr.Readed = 1;
1937 cdr.pTransfer = cdr.Transfer;
1938
1939 switch (cdr.Mode & 0x30) {
9f8b032d 1940 case MODE_SIZE_2328:
ef79bbde
P		 1941 case 0x00:
1942 cdr.pTransfer += 12;
1943 break;
9f8b032d 1944
1945 case MODE_SIZE_2340:
1946 cdr.pTransfer += 0;
1947 break;
1948
ef79bbde
P		 1949 default:
1950 break;
1951 }
1952 }
1953}
1954
1955void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1956 u32 cdsize;
c7071c43 1957 int size;
ef79bbde
P		 1958 u8 *ptr;
1959
1960#ifdef CDR_LOG
1961 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1962#endif
1963
1964 switch (chcr) {
1965 case 0x11000000:
1966 case 0x11400100:
1967 if (cdr.Readed == 0) {
1968#ifdef CDR_LOG
1969 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1970#endif
1971 break;
1972 }
1973
1974 cdsize = (bcr & 0xffff) * 4;
1975
9f8b032d 1976 // Ape Escape: bcr = 0001 / 0000
1977 // - fix boot
1978 if( cdsize == 0 )
1979 {
1980 switch (cdr.Mode & 0x30) {
1981 case 0x00: cdsize = 2048; break;
1982 case MODE_SIZE_2328: cdsize = 2328; break;
1983 case MODE_SIZE_2340: cdsize = 2340; break;
1984 }
1985 }
1986
1987
ef79bbde
P		 1988 ptr = (u8 *)PSXM(madr);
1989 if (ptr == NULL) {
1990#ifdef CPU_LOG
1991 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1992#endif
1993 break;
1994 }
9f8b032d 1995
1996 /*
1997 GS CDX: Enhancement CD crash
1998 - Setloc 0:0:0
1999 - CdlPlay
2000 - Spams DMA3 and gets buffer overrun
2001 */
c7071c43 2002 size = CD_FRAMESIZE_RAW - (cdr.pTransfer - cdr.Transfer);
2003 if (size > cdsize)
2004 size = cdsize;
2005 if (size > 0)
9f8b032d 2006 {
c7071c43 2007 memcpy(ptr, cdr.pTransfer, size);
9f8b032d 2008 }
2009
ef79bbde
P		 2010 psxCpu->Clear(madr, cdsize / 4);
2011 cdr.pTransfer += cdsize;
9f8b032d 2012
2013
2014 // burst vs normal
2015 if( chcr == 0x11400100 ) {
2016 CDRDMA_INT( (cdsize/4) / 4 );
2017 }
2018 else if( chcr == 0x11000000 ) {
2019 CDRDMA_INT( (cdsize/4) * 1 );
2020 }
2021 return;
2022
ef79bbde
P		 2023 default:
2024#ifdef CDR_LOG
2025 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2026#endif
2027 break;
2028 }
2029
2030 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2031 DMA_INTERRUPT(3);
2032}
2033
9f8b032d 2034void cdrDmaInterrupt()
2035{
ad418c19 2036 if (HW_DMA3_CHCR & SWAP32(0x01000000))
2037 {
2038 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2039 DMA_INTERRUPT(3);
2040 }
9f8b032d 2041}
2042
ef79bbde
P		 2043void cdrReset() {
2044 memset(&cdr, 0, sizeof(cdr));
2045 cdr.CurTrack = 1;
2046 cdr.File = 1;
2047 cdr.Channel = 1;
056d6759 2048
2049 // BIOS player - default values
2050 cdr.AttenuatorLeft[0] = 0x80;
2051 cdr.AttenuatorLeft[1] = 0x00;
2052 cdr.AttenuatorRight[0] = 0x80;
2053 cdr.AttenuatorRight[1] = 0x00;
ef79bbde
P		 2054}
2055
2056int cdrFreeze(gzFile f, int Mode) {
2057 uintptr_t tmp;
2058
ef79bbde 2059
9f8b032d 2060 if( Mode == 0 ) {
2061 StopCdda();
2062 }
2063
2064 gzfreeze(&cdr, sizeof(cdr));
2065
ef79bbde
P		 2066 if (Mode == 1)
2067 tmp = cdr.pTransfer - cdr.Transfer;
2068
2069 gzfreeze(&tmp, sizeof(tmp));
2070
2071 if (Mode == 0)
2072 cdr.pTransfer = cdr.Transfer + tmp;
2073
2074 return 0;
2075}
9f8b032d 2076
2077void LidInterrupt() {
2078 cdr.LidCheck = 0x20; // start checker
2079
2080 CDRLID_INT( cdReadTime * 3 );
2081
2082 // generate interrupt if none active - open or close
2083 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2084 cdr.Ctrl |= 0x80;
2085 cdr.Stat = NoIntr;
2086 AddIrqQueue(CdlNop, 0x800);
2087 }
2088}
ARM optimized PCSX fork