notaz.gp2x.de / pcsx_rearmed.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
drc: fall back to interpreter on delay slot link reg dependencies
[pcsx_rearmed.git] / libpcsxcore / cdrom.c
CommitLineData
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 {
272 if (stat.Type == 0xff)
273 cdr.Stat = DiskError;
274
275 // case now open
276 else if (stat.Status & STATUS_SHELLOPEN)
277 {
278 // Vib Ribbon: pre-CD swap
279 StopCdda();
280
281
282 // GameShark Lite: Death if DiskError happens
283 //
284 // Vib Ribbon: Needs DiskError for CD swap
285
286 if (Irq != CdlNop)
287 {
288 cdr.Stat = DiskError;
289
290 cdr.StatP |= STATUS_ERROR;
291 cdr.Result[0] |= STATUS_ERROR;
292 }
293
294 // GameShark Lite: Wants -exactly- $10
295 cdr.StatP |= STATUS_SHELLOPEN;
296 cdr.StatP &= ~STATUS_ROTATING;
297
298
299 CDRLID_INT( cdReadTime * 3 );
300 cdr.LidCheck = 0x10;
301
302
303 // GS CDX 3.3 = $11
304 }
305
306 // case just closed
307 else if ( i & STATUS_SHELLOPEN )
308 {
309 cdr.StatP |= STATUS_ROTATING;
310
311 CheckCdrom();
312
313
314 if( cdr.Stat == NoIntr )
315 cdr.Stat = Acknowledge;
316
317 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
318
319
320 // begin close-seek-ready cycle
321 CDRLID_INT( cdReadTime * 3 );
322 cdr.LidCheck = 0x30;
323
324
325 // GameShark Lite: Wants -exactly- $42, then $02
326 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
327 }
328
329 // case still closed - wait for recheck
330 else
331 {
332 CDRLID_INT( cdReadTime * 3 );
333 cdr.LidCheck = 0x10;
334 }
335 }
336 }
337
338
339 // GS CDX: clear all values but #1,#2
340 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
341 {
342 SetResultSize(16);
343 memset( cdr.Result, 0, 16 );
344
345 cdr.Result[0] = cdr.StatP;
346
347
348 // GS CDX: special return value
349 if( cdr.StatP & STATUS_SHELLOPEN )
350 {
351 cdr.Result[1] = 0x80;
352 }
353
354
355 if( cdr.Stat == NoIntr )
356 cdr.Stat = Acknowledge;
357
358 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
359 }
360 }
361}
362
363
364void Find_CurTrack() {
365 cdr.CurTrack = 0;
366
367 if (CDR_getTN(cdr.ResultTN) != -1) {
368 int lcv;
369
370 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
371 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
372 u32 sect1, sect2;
373
374#ifdef CDR_LOG___0
375 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
376 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
377 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
378 cdr.CurTrack );
379#endif
380
381 // find next track boundary - only need m:s accuracy
382 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
383 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
384
385 // Twisted Metal 4 - psx cdda pregap (2-sec)
386 // - fix in-game music
387 sect2 -= 75 * 2;
388
389 if( sect1 >= sect2 ) {
390 cdr.CurTrack++;
391 continue;
392 }
393 }
394
395 break;
396 }
397 }
398}
399
400static void ReadTrack( u8 *time ) {
401 cdr.Prev[0] = itob( time[0] );
402 cdr.Prev[1] = itob( time[1] );
403 cdr.Prev[2] = itob( time[2] );
ef79bbde
P		 404
405#ifdef CDR_LOG
406 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
407#endif
408 cdr.RErr = CDR_readTrack(cdr.Prev);
409}
410
ef79bbde
P		 411
412void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
413 cdr.Irq = irq;
9f8b032d 414 cdr.eCycle = ecycle;
415
416 // Doom: Force rescheduling
417 // - Fixes boot
418 CDR_INT(ecycle);
419}
420
421
422void Set_Track()
423{
424 if (CDR_getTN(cdr.ResultTN) != -1) {
425 int lcv;
426
427 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
428 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
429#ifdef CDR_LOG___0
430 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
431 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
432 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
433 cdr.CurTrack );
434#endif
435
436 // check if time matches track start (only need min, sec accuracy)
437 // - m:s:f vs f:s:m
438 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
439 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
440 // skip pregap frames
441 if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
442 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
443
444 break;
445 }
446 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
447 break;
448 }
449 }
450 }
451}
452
453
454static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
7f457614 455static void Create_Fake_Subq()
9f8b032d 456{
457 u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
458 int diff;
459
460 if (CDR_getTN(cdr.ResultTN) == -1) return;
461 if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
462 pregap = 150;
463 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
464 } else {
465 // last track - cd size
466 pregap = 0;
467 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
468 }
469
470 if( cdr.Play == TRUE ) {
471 temp_cur[0] = cdr.SetSectorPlay[0];
472 temp_cur[1] = cdr.SetSectorPlay[1];
473 temp_cur[2] = cdr.SetSectorPlay[2];
474 } else {
475 temp_cur[0] = btoi( cdr.Prev[0] );
476 temp_cur[1] = btoi( cdr.Prev[1] );
477 temp_cur[2] = btoi( cdr.Prev[2] );
478 }
479
480 fake_subq_real[0] = temp_cur[0];
481 fake_subq_real[1] = temp_cur[1];
482 fake_subq_real[2] = temp_cur[2];
483
484 temp_next[0] = cdr.ResultTD[2];
485 temp_next[1] = cdr.ResultTD[1];
486 temp_next[2] = cdr.ResultTD[0];
487
488
489 // flag- next track
490 if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
491 fake_subq_change = 1;
492
493 cdr.CurTrack++;
494
495 // end cd
496 if( pregap == 0 ) StopCdda();
497 }
498
499 //////////////////////////////////////////////////
500 //////////////////////////////////////////////////
501
502 // repair
503 if( cdr.CurTrack <= cdr.ResultTN[1] ) {
504 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
505 } else {
506 // last track - cd size
507 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
508 }
509
510 temp_start[0] = cdr.ResultTD[2];
511 temp_start[1] = cdr.ResultTD[1];
512 temp_start[2] = cdr.ResultTD[0];
513
514
515#ifdef CDR_LOG
516 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
517 temp_cur[0], temp_cur[1], temp_cur[2],
518 temp_start[0], temp_start[1], temp_start[2],
519 temp_next[0], temp_next[1], temp_next[2]);
520#endif
521
522
523
524 // local time - pregap / real
525 diff = msf2sec(temp_cur) - msf2sec( temp_start );
526 if( diff < 0 ) {
527 fake_subq_index = 0;
528
529 sec2msf( -diff, fake_subq_local );
ef79bbde 530 } else {
9f8b032d 531 fake_subq_index = 1;
532
533 sec2msf( diff, fake_subq_local );
ef79bbde
P		 534 }
535}
536
9f8b032d 537
7f457614 538static void cdrPlayInterrupt_Autopause()
539{
540 struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
541 if (subq != NULL ) {
542#ifdef CDR_LOG
543 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
544 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
545#endif
546
547 /*
548 CDDA Autopause
549
550 Silhouette Mirage ($3)
551 Tomb Raider 1 ($7)
552 */
553
554 if( cdr.CurTrack >= btoi( subq->TrackNumber ) )
555 return;
556 } else {
557 Create_Fake_Subq();
558#ifdef CDR_LOG___0
559 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
560 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
561#endif
562
563 if( !fake_subq_change )
564 return;
565
566 fake_subq_change = 0;
567 }
568
569 if (cdr.Mode & MODE_AUTOPAUSE) {
570#ifdef CDR_LOG
571 CDR_LOG( "CDDA STOP\n" );
572#endif
573
574 // Magic the Gathering
575 // - looping territory cdda
576
577 // ...?
578 //cdr.ResultReady = 1;
579 //cdr.Stat = DataReady;
580 cdr.Stat = DataEnd;
581 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
582
583 StopCdda();
584 }
585 if (cdr.Mode & MODE_REPORT) {
586 // rearmed note: PCSX-Reloaded does this for every sector,
587 // but we try to get away with only track change here.
588 memset( cdr.Result, 0, 8 );
589 cdr.Result[0] |= 0x10;
590
591 if (subq != NULL) {
592#ifdef CDR_LOG
593 CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
594 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
595#endif
596 cdr.CurTrack = btoi( subq->TrackNumber );
597
598 // BIOS CD Player: data already BCD format
599 cdr.Result[1] = subq->TrackNumber;
600 cdr.Result[2] = subq->IndexNumber;
601
602 cdr.Result[3] = subq->AbsoluteAddress[0];
603 cdr.Result[4] = subq->AbsoluteAddress[1];
604 cdr.Result[5] = subq->AbsoluteAddress[2];
605 } else {
606#ifdef CDR_LOG___0
607 CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
608 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
609#endif
610
611 // track # / index #
612 cdr.Result[1] = itob(cdr.CurTrack);
613 cdr.Result[2] = itob(fake_subq_index);
614 // absolute
615 cdr.Result[3] = itob( fake_subq_real[0] );
616 cdr.Result[4] = itob( fake_subq_real[1] );
617 cdr.Result[5] = itob( fake_subq_real[2] );
618 }
619
620 // Rayman: Logo freeze (resultready + dataready)
621 cdr.ResultReady = 1;
622 cdr.Stat = DataReady;
623
624 SetResultSize(8);
625 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
626 }
627}
628
629void cdrPlayInterrupt()
630{
631 if( !cdr.Play ) return;
632
633#ifdef CDR_LOG
634 CDR_LOG( "CDDA - %d:%d:%d\n",
635 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
636#endif
637 CDRPLAY_INT( cdReadTime );
638
639 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
640 cdrPlayInterrupt_Autopause();
641
642 cdr.SetSectorPlay[2]++;
643 if (cdr.SetSectorPlay[2] == 75) {
644 cdr.SetSectorPlay[2] = 0;
645 cdr.SetSectorPlay[1]++;
646 if (cdr.SetSectorPlay[1] == 60) {
647 cdr.SetSectorPlay[1] = 0;
648 cdr.SetSectorPlay[0]++;
649 }
650 }
651
652 //Check_Shell(0);
653}
654
ef79bbde
P		 655void cdrInterrupt() {
656 int i;
657 unsigned char Irq = cdr.Irq;
7f457614 658 struct SubQ *subq;
ef79bbde 659
9f8b032d 660 // Reschedule IRQ
ef79bbde 661 if (cdr.Stat) {
9f8b032d 662 CDR_INT( 0x100 );
ef79bbde
P		 663 return;
664 }
665
666 cdr.Irq = 0xff;
667 cdr.Ctrl &= ~0x80;
668
669 switch (Irq) {
670 case CdlSync:
671 SetResultSize(1);
9f8b032d 672 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 673 cdr.Result[0] = cdr.StatP;
674 cdr.Stat = Acknowledge;
675 break;
676
677 case CdlNop:
678 SetResultSize(1);
679 cdr.Result[0] = cdr.StatP;
680 cdr.Stat = Acknowledge;
9f8b032d 681
682 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 683 break;
684
685 case CdlSetloc:
686 cdr.CmdProcess = 0;
687 SetResultSize(1);
9f8b032d 688 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 689 cdr.Result[0] = cdr.StatP;
690 cdr.Stat = Acknowledge;
691 break;
692
693 case CdlPlay:
9f8b032d 694 fake_subq_change = 0;
695
696 if( cdr.Seeked == FALSE ) {
697 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
698 cdr.Seeked = TRUE;
699 }
700
701 /*
702 Rayman: detect track changes
703 - fixes logo freeze
704
705 Twisted Metal 2: skip PREGAP + starting accurate SubQ
706 - plays tracks without retry play
707
708 Wild 9: skip PREGAP + starting accurate SubQ
709 - plays tracks without retry play
710 */
711 Set_Track();
712 Find_CurTrack();
713 ReadTrack( cdr.SetSectorPlay );
714
715
716 // GameShark CD Player: Calls 2x + Play 2x
717 if( cdr.FastBackward || cdr.FastForward ) {
718 if( cdr.FastForward ) cdr.FastForward--;
719 if( cdr.FastBackward ) cdr.FastBackward--;
720
721 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
722 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
723 cdr.SetSectorPlay[0] = stat.Time[0];
724 cdr.SetSectorPlay[1] = stat.Time[1];
725 cdr.SetSectorPlay[2] = stat.Time[2];
726 }
727 }
728 }
729
730
731 if (!Config.Cdda) {
732 // BIOS CD Player
733 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
734
735 // GameShark CD Player: Resume play
736 if( cdr.ParamC == 0 ) {
737#ifdef CDR_LOG___0
738 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
739 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
740#endif
741
742 //CDR_play( cdr.SetSectorPlay );
743 }
744 else
745 {
746 // BIOS CD Player: Resume play
747 if( cdr.Param[0] == 0 ) {
748#ifdef CDR_LOG___0
749 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
750 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
751#endif
752
753 //CDR_play( cdr.SetSectorPlay );
754 }
755 else {
756#ifdef CDR_LOG___0
757 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
758 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
759#endif
760
761 // BIOS CD Player: Allow track replaying
762 StopCdda();
763
764
765 cdr.CurTrack = btoi( cdr.Param[0] );
766
767 if (CDR_getTN(cdr.ResultTN) != -1) {
768 // check last track
769 if (cdr.CurTrack > cdr.ResultTN[1])
770 cdr.CurTrack = cdr.ResultTN[1];
771
772 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
773 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
774 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
775 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
776
777 // reset data
778 Set_Track();
779 Find_CurTrack();
780 ReadTrack( cdr.SetSectorPlay );
781
782 //CDR_play(cdr.SetSectorPlay);
783 }
784 }
785 }
786 }
787 }
788
789
790 // Vib Ribbon: gameplay checks flag
791 cdr.StatP &= ~STATUS_SEEK;
792
793
ef79bbde
P		 794 cdr.CmdProcess = 0;
795 SetResultSize(1);
9f8b032d 796 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 797 cdr.Result[0] = cdr.StatP;
798 cdr.Stat = Acknowledge;
9f8b032d 799
800 cdr.StatP |= STATUS_PLAY;
801
802
803 // BIOS player - set flag again
804 cdr.Play = TRUE;
805
7f457614 806 CDRPLAY_INT( cdReadTime );
ef79bbde
P		 807 break;
808
9f8b032d 809 case CdlForward:
ef79bbde
P		 810 cdr.CmdProcess = 0;
811 SetResultSize(1);
9f8b032d 812 cdr.StatP |= STATUS_ROTATING;
813 cdr.Result[0] = cdr.StatP;
814 cdr.Stat = Complete;
815
816
817 // GameShark CD Player: Calls 2x + Play 2x
818 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
819 else cdr.FastForward++;
820
821 cdr.FastBackward = 0;
ef79bbde
P		 822 break;
823
9f8b032d 824 case CdlBackward:
ef79bbde
P		 825 cdr.CmdProcess = 0;
826 SetResultSize(1);
9f8b032d 827 cdr.StatP |= STATUS_ROTATING;
828 cdr.Result[0] = cdr.StatP;
829 cdr.Stat = Complete;
830
831
832 // GameShark CD Player: Calls 2x + Play 2x
833 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
834 else cdr.FastBackward++;
835
836 cdr.FastForward = 0;
ef79bbde
P		 837 break;
838
9f8b032d 839 case CdlStandby:
ef79bbde
P		 840 cdr.CmdProcess = 0;
841 SetResultSize(1);
9f8b032d 842 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 843 cdr.Result[0] = cdr.StatP;
844 cdr.Stat = Complete;
845 break;
846
847 case CdlStop:
848 cdr.CmdProcess = 0;
849 SetResultSize(1);
9f8b032d 850 cdr.StatP &= ~STATUS_ROTATING;
ef79bbde
P		 851 cdr.Result[0] = cdr.StatP;
852 cdr.Stat = Complete;
853// cdr.Stat = Acknowledge;
854
9f8b032d 855 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 856 break;
857
858 case CdlPause:
859 SetResultSize(1);
860 cdr.Result[0] = cdr.StatP;
9f8b032d 861 cdr.Stat = Acknowledge;
862
863 AddIrqQueue(CdlPause + 0x20, 0x800);
ef79bbde
P		 864 cdr.Ctrl |= 0x80;
865 break;
866
867 case CdlPause + 0x20:
868 SetResultSize(1);
9f8b032d 869 cdr.StatP &= ~STATUS_READ;
870 cdr.StatP |= STATUS_ROTATING;
ef79bbde 871 cdr.Result[0] = cdr.StatP;
9f8b032d 872 cdr.Stat = Complete;
ef79bbde
P		 873 break;
874
9f8b032d 875 case CdlInit:
ef79bbde 876 SetResultSize(1);
9f8b032d 877 cdr.StatP = STATUS_ROTATING;
ef79bbde 878 cdr.Result[0] = cdr.StatP;
9f8b032d 879 cdr.Stat = Acknowledge;
ef79bbde 880// if (!cdr.Init) {
9f8b032d 881 AddIrqQueue(CdlInit + 0x20, 0x800);
ef79bbde
P		 882// }
883 break;
884
885 case CdlInit + 0x20:
886 SetResultSize(1);
887 cdr.Result[0] = cdr.StatP;
9f8b032d 888 cdr.Stat = Complete;
ef79bbde
P		 889 cdr.Init = 1;
890 break;
891
9f8b032d 892 case CdlMute:
ef79bbde 893 SetResultSize(1);
9f8b032d 894 cdr.StatP |= STATUS_ROTATING;
895 cdr.Result[0] = cdr.StatP;
896 cdr.Stat = Acknowledge;
ef79bbde
P		 897 break;
898
9f8b032d 899 case CdlDemute:
ef79bbde 900 SetResultSize(1);
9f8b032d 901 cdr.StatP |= STATUS_ROTATING;
902 cdr.Result[0] = cdr.StatP;
903 cdr.Stat = Acknowledge;
ef79bbde
P		 904 break;
905
9f8b032d 906 case CdlSetfilter:
ef79bbde 907 SetResultSize(1);
9f8b032d 908 cdr.StatP |= STATUS_ROTATING;
909 cdr.Result[0] = cdr.StatP;
910 cdr.Stat = Acknowledge;
911 break;
ef79bbde
P		 912
913 case CdlSetmode:
914 SetResultSize(1);
9f8b032d 915 cdr.StatP |= STATUS_ROTATING;
916 cdr.Result[0] = cdr.StatP;
917 cdr.Stat = Acknowledge;
918 break;
ef79bbde 919
9f8b032d 920 case CdlGetmode:
ef79bbde 921 SetResultSize(6);
9f8b032d 922 cdr.StatP |= STATUS_ROTATING;
923 cdr.Result[0] = cdr.StatP;
924 cdr.Result[1] = cdr.Mode;
925 cdr.Result[2] = cdr.File;
926 cdr.Result[3] = cdr.Channel;
927 cdr.Result[4] = 0;
928 cdr.Result[5] = 0;
929 cdr.Stat = Acknowledge;
930 break;
ef79bbde 931
9f8b032d 932 case CdlGetlocL:
ef79bbde 933 SetResultSize(8);
9f8b032d 934 for (i = 0; i < 8; i++)
ef79bbde 935 cdr.Result[i] = cdr.Transfer[i];
9f8b032d 936 cdr.Stat = Acknowledge;
937 break;
ef79bbde
P		 938
939 case CdlGetlocP:
9f8b032d 940 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
941 SetResultSize(17);
942 memset( cdr.Result, 0, 16 );
943
ef79bbde
P		 944 subq = (struct SubQ *)CDR_getBufferSub();
945
946 if (subq != NULL) {
947 cdr.Result[0] = subq->TrackNumber;
948 cdr.Result[1] = subq->IndexNumber;
949 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
950 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
951
9f8b032d 952
953 // subQ integrity check - data only (skip audio)
954 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
ef79bbde
P		 955 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
956 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
957 }
9f8b032d 958 }
ef79bbde 959 } else {
7f457614 960 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
961 Create_Fake_Subq();
ef79bbde 962
ef79bbde 963
9f8b032d 964 // track # / index #
965 cdr.Result[0] = itob(cdr.CurTrack);
966 cdr.Result[1] = itob(fake_subq_index);
ef79bbde 967
9f8b032d 968 // local
969 cdr.Result[2] = itob( fake_subq_local[0] );
970 cdr.Result[3] = itob( fake_subq_local[1] );
971 cdr.Result[4] = itob( fake_subq_local[2] );
ef79bbde 972
9f8b032d 973 // absolute
974 cdr.Result[5] = itob( fake_subq_real[0] );
975 cdr.Result[6] = itob( fake_subq_real[1] );
976 cdr.Result[7] = itob( fake_subq_real[2] );
ef79bbde
P		 977 }
978
9f8b032d 979 // redump.org - wipe time
980 /*if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
981 memset( cdr.Result+2, 0, 6 );
982 }
983 */
984
ef79bbde
P		 985 cdr.Stat = Acknowledge;
986 break;
987
9f8b032d 988 case CdlGetTN:
989 // 5-Star Racing: don't stop CDDA
990 //
991 // Vib Ribbon: CD swap
992 StopReading();
993
ef79bbde
P		 994 cdr.CmdProcess = 0;
995 SetResultSize(3);
9f8b032d 996 cdr.StatP |= STATUS_ROTATING;
997 cdr.Result[0] = cdr.StatP;
998 if (CDR_getTN(cdr.ResultTN) == -1) {
ef79bbde 999 cdr.Stat = DiskError;
9f8b032d 1000 cdr.Result[0] |= STATUS_ERROR;
1001 } else {
1002 cdr.Stat = Acknowledge;
1003 cdr.Result[1] = itob(cdr.ResultTN[0]);
1004 cdr.Result[2] = itob(cdr.ResultTN[1]);
1005 }
1006 break;
ef79bbde 1007
9f8b032d 1008 case CdlGetTD:
ef79bbde
P		 1009 cdr.CmdProcess = 0;
1010 cdr.Track = btoi(cdr.Param[0]);
1011 SetResultSize(4);
9f8b032d 1012 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 1013 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1014 cdr.Stat = DiskError;
9f8b032d 1015 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1016 } else {
1017 cdr.Stat = Acknowledge;
1018 cdr.Result[0] = cdr.StatP;
1019 cdr.Result[1] = itob(cdr.ResultTD[2]);
1020 cdr.Result[2] = itob(cdr.ResultTD[1]);
1021 cdr.Result[3] = itob(cdr.ResultTD[0]);
1022 }
1023 break;
1024
9f8b032d 1025 case CdlSeekL:
ef79bbde 1026 SetResultSize(1);
9f8b032d 1027 cdr.StatP |= STATUS_ROTATING;
1028 cdr.Result[0] = cdr.StatP;
1029 cdr.StatP |= STATUS_SEEK;
1030 cdr.Stat = Acknowledge;
1031
1032 /*
1033 Crusaders of Might and Magic = 0.5x-4x
1034 - fix cutscene speech start
1035
1036 Eggs of Steel = 2x-?
1037 - fix new game
1038
1039 Medievil = ?-4x
1040 - fix cutscene speech
1041
1042 Rockman X5 = 0.5-4x
1043 - fix capcom logo
1044 */
1045 AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
ef79bbde
P		 1046 break;
1047
9f8b032d 1048 case CdlSeekL + 0x20:
ef79bbde 1049 SetResultSize(1);
9f8b032d 1050 cdr.StatP |= STATUS_ROTATING;
1051 cdr.StatP &= ~STATUS_SEEK;
1052 cdr.Result[0] = cdr.StatP;
1053 cdr.Seeked = TRUE;
1054 cdr.Stat = Complete;
1055
1056
1057 // Mega Man Legends 2: must update read cursor for getlocp
1058 ReadTrack( cdr.SetSector );
ef79bbde
P		 1059 break;
1060
9f8b032d 1061 case CdlSeekP:
ef79bbde 1062 SetResultSize(1);
9f8b032d 1063 cdr.StatP |= STATUS_ROTATING;
1064 cdr.Result[0] = cdr.StatP;
1065 cdr.StatP |= STATUS_SEEK;
1066 cdr.Stat = Acknowledge;
1067 AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
ef79bbde
P		 1068 break;
1069
9f8b032d 1070 case CdlSeekP + 0x20:
ef79bbde 1071 SetResultSize(1);
9f8b032d 1072 cdr.StatP |= STATUS_ROTATING;
1073 cdr.StatP &= ~STATUS_SEEK;
1074 cdr.Result[0] = cdr.StatP;
1075 cdr.Stat = Complete;
1076 cdr.Seeked = TRUE;
1077
1078 // GameShark Music Player
1079 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1080
1081 // Tomb Raider 2: must update read cursor for getlocp
1082 Find_CurTrack();
1083 ReadTrack( cdr.SetSectorPlay );
ef79bbde
P		 1084 break;
1085
1086 case CdlTest:
9f8b032d 1087 cdr.Stat = Acknowledge;
1088 switch (cdr.Param[0]) {
1089 case 0x20: // System Controller ROM Version
ef79bbde
P		 1090 SetResultSize(4);
1091 memcpy(cdr.Result, Test20, 4);
1092 break;
1093 case 0x22:
1094 SetResultSize(8);
1095 memcpy(cdr.Result, Test22, 4);
1096 break;
1097 case 0x23: case 0x24:
1098 SetResultSize(8);
1099 memcpy(cdr.Result, Test23, 4);
1100 break;
9f8b032d 1101 }
ef79bbde
P		 1102 break;
1103
9f8b032d 1104 case CdlID:
ef79bbde 1105 SetResultSize(1);
9f8b032d 1106 cdr.StatP |= STATUS_ROTATING;
1107 cdr.Result[0] = cdr.StatP;
1108 cdr.Stat = Acknowledge;
1109 AddIrqQueue(CdlID + 0x20, 0x800);
ef79bbde
P		 1110 break;
1111
1112 case CdlID + 0x20:
1113 SetResultSize(8);
9f8b032d 1114
1115 if (CDR_getStatus(&stat) == -1) {
1116 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1117 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1118 }
1119 else {
1120 if (stat.Type == 2) {
1121 // Music CD
1122 cdr.Result[0] = 0x08;
1123 cdr.Result[1] = 0x10;
1124
1125 cdr.Result[1] |= 0x80;
1126 }
1127 else {
1128 // Data CD
1129 if (CdromId[0] == '\0') {
1130 cdr.Result[0] = 0x00;
1131 cdr.Result[1] = 0x80;
1132 }
1133 else {
1134 cdr.Result[0] = 0x08;
1135 cdr.Result[1] = 0x00;
1136 }
1137 }
1138 }
1139
ef79bbde
P		 1140 cdr.Result[2] = 0x00;
1141 cdr.Result[3] = 0x00;
1142 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1143 cdr.Stat = Complete;
1144 break;
1145
1146 case CdlReset:
1147 SetResultSize(1);
9f8b032d 1148 cdr.StatP = STATUS_ROTATING;
ef79bbde 1149 cdr.Result[0] = cdr.StatP;
9f8b032d 1150 cdr.Stat = Acknowledge;
ef79bbde
P		 1151 break;
1152
9f8b032d 1153 case CdlReadT:
1154 SetResultSize(1);
1155 cdr.StatP |= STATUS_ROTATING;
1156 cdr.Result[0] = cdr.StatP;
1157 cdr.Stat = Acknowledge;
1158 AddIrqQueue(CdlReadT + 0x20, 0x800);
1159 break;
1160
1161 case CdlReadT + 0x20:
1162 SetResultSize(1);
1163 cdr.StatP |= STATUS_ROTATING;
1164 cdr.Result[0] = cdr.StatP;
1165 cdr.Stat = Complete;
1166 break;
1167
1168 case CdlReadToc:
ef79bbde 1169 SetResultSize(1);
9f8b032d 1170 cdr.StatP |= STATUS_ROTATING;
1171 cdr.Result[0] = cdr.StatP;
1172 cdr.Stat = Acknowledge;
1173 AddIrqQueue(CdlReadToc + 0x20, 0x800);
ef79bbde
P		 1174 break;
1175
9f8b032d 1176 case CdlReadToc + 0x20:
ef79bbde 1177 SetResultSize(1);
9f8b032d 1178 cdr.StatP |= STATUS_ROTATING;
1179 cdr.Result[0] = cdr.StatP;
1180 cdr.Stat = Complete;
ef79bbde
P		 1181 break;
1182
1183 case AUTOPAUSE:
1184 cdr.OCUP = 0;
1185/* SetResultSize(1);
1186 StopCdda();
1187 StopReading();
1188 cdr.OCUP = 0;
9f8b032d 1189 cdr.StatP&=~0x20;
ef79bbde 1190 cdr.StatP|= 0x2;
9f8b032d 1191 cdr.Result[0] = cdr.StatP;
1192 cdr.Stat = DataEnd;
ef79bbde
P		 1193*/ AddIrqQueue(CdlPause, 0x800);
1194 break;
1195
1196 case READ_ACK:
1197 if (!cdr.Reading) return;
1198
9f8b032d 1199
1200 // Fighting Force 2 - update subq time immediately
1201 // - fixes new game
1202 ReadTrack( cdr.SetSector );
1203
1204
1205 // Crusaders of Might and Magic - update getlocl now
1206 // - fixes cutscene speech
1207 {
1208 u8 *buf = CDR_getBuffer();
1209 memcpy(cdr.Transfer, buf, 8);
1210 }
1211
1212
1213 /*
1214 Duke Nukem: Land of the Babes - seek then delay read for one frame
1215 - fixes cutscenes
1216 */
1217
ef79bbde
P		 1218 if (!cdr.Seeked) {
1219 cdr.Seeked = TRUE;
ef79bbde 1220
9f8b032d 1221 cdr.StatP |= STATUS_SEEK;
1222 cdr.StatP &= ~STATUS_READ;
1223
1224 // Crusaders of Might and Magic - use short time
1225 // - fix cutscene speech (startup)
1226
1227 // ??? - use more accurate seek time later
1228 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1229 } else {
1230 cdr.StatP |= STATUS_READ;
1231 cdr.StatP &= ~STATUS_SEEK;
1232
1233 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1234 }
ef79bbde 1235
ef79bbde 1236 SetResultSize(1);
9f8b032d 1237 cdr.StatP |= STATUS_ROTATING;
1238 cdr.Result[0] = cdr.StatP;
1239 cdr.Stat = Acknowledge;
ef79bbde
P		 1240 break;
1241
ef79bbde
P		 1242 case 0xff:
1243 return;
1244
1245 default:
1246 cdr.Stat = Complete;
1247 break;
1248 }
1249
9f8b032d 1250 Check_Shell( Irq );
1251
ef79bbde
P		 1252 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1253 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1254 }
1255
1256#ifdef CDR_LOG
1257 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1258#endif
1259}
1260
1261void cdrReadInterrupt() {
1262 u8 *buf;
1263
1264 if (!cdr.Reading)
1265 return;
1266
9f8b032d 1267 if (cdr.Irq || cdr.Stat) {
1268 CDREAD_INT(0x100);
ef79bbde
P		 1269 return;
1270 }
1271
1272#ifdef CDR_LOG
1273 CDR_LOG("cdrReadInterrupt() Log: KEY END");
1274#endif
1275
9f8b032d 1276 cdr.OCUP = 1;
ef79bbde 1277 SetResultSize(1);
9f8b032d 1278 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1279 cdr.StatP &= ~STATUS_SEEK;
1280 cdr.Result[0] = cdr.StatP;
ef79bbde 1281
9f8b032d 1282 ReadTrack( cdr.SetSector );
ef79bbde
P		 1283
1284 buf = CDR_getBuffer();
1285 if (buf == NULL)
1286 cdr.RErr = -1;
1287
1288 if (cdr.RErr == -1) {
1289#ifdef CDR_LOG
1290 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1291#endif
1292 memset(cdr.Transfer, 0, DATA_SIZE);
1293 cdr.Stat = DiskError;
9f8b032d 1294 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1295 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1296 return;
1297 }
1298
1299 memcpy(cdr.Transfer, buf, DATA_SIZE);
1300 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1301
ef79bbde
P		 1302
1303#ifdef CDR_LOG
1304 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1305#endif
1306
9f8b032d 1307 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1308 // Firemen 2: Multi-XA files - briefings, cutscenes
1309 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1310 cdr.File = cdr.Transfer[4 + 0];
1311 cdr.Channel = cdr.Transfer[4 + 1];
1312 }
1313
ef79bbde 1314 if ((cdr.Transfer[4 + 2] & 0x4) &&
9f8b032d 1315 (cdr.Transfer[4 + 1] == cdr.Channel) &&
ef79bbde
P		 1316 (cdr.Transfer[4 + 0] == cdr.File)) {
1317 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1318
1319 if (!ret) {
1320 SPU_playADPCMchannel(&cdr.Xa);
1321 cdr.FirstSector = 0;
9f8b032d 1322
1323
1324 // Crash Team Racing: music, speech
1325
1326 // signal ADPCM data ready
1327 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
ef79bbde
P		 1328 }
1329 else cdr.FirstSector = -1;
1330 }
1331 }
1332
1333 cdr.SetSector[2]++;
9f8b032d 1334 if (cdr.SetSector[2] == 75) {
1335 cdr.SetSector[2] = 0;
1336 cdr.SetSector[1]++;
1337 if (cdr.SetSector[1] == 60) {
1338 cdr.SetSector[1] = 0;
1339 cdr.SetSector[0]++;
1340 }
1341 }
1342
1343 cdr.Readed = 0;
1344
1345 // G-Police: Don't autopause ADPCM even if mode set (music)
1346 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1347 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
ef79bbde
P		 1348#ifdef CDR_LOG
1349 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1350#endif
9f8b032d 1351// AddIrqQueue(AUTOPAUSE, 0x2000);
1352 AddIrqQueue(CdlPause, 0x2000);
ef79bbde
P		 1353 }
1354 else {
9f8b032d 1355 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1356 }
1357
1358 /*
1359 Croc 2: $40 - only FORM1 (*)
1360 Judge Dredd: $C8 - only FORM1 (*)
1361 Sim Theme Park - no adpcm at all (zero)
1362 */
1363
1364 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1365 cdr.Stat = DataReady;
1366 } else {
1367 // Breath of Fire 3 - fix inn sleeping
1368 // Rockman X5 - no music restart problem
1369 cdr.Stat = NoIntr;
ef79bbde
P		 1370 }
1371 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
9f8b032d 1372
1373 Check_Shell(0);
ef79bbde
P		 1374}
1375
1376/*
1377cdrRead0:
1378 bit 0 - 0 REG1 command send / 1 REG1 data read
1379 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1380 bit 2 - unknown
1381 bit 3 - unknown
1382 bit 4 - unknown
1383 bit 5 - 1 result ready
1384 bit 6 - 1 dma ready
1385 bit 7 - 1 command being processed
1386*/
1387
1388unsigned char cdrRead0(void) {
1389 if (cdr.ResultReady)
1390 cdr.Ctrl |= 0x20;
1391 else
1392 cdr.Ctrl &= ~0x20;
1393
1394 if (cdr.OCUP)
1395 cdr.Ctrl |= 0x40;
1396// else
1397// cdr.Ctrl &= ~0x40;
1398
1399 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1400 cdr.Ctrl |= 0x18;
1401
1402#ifdef CDR_LOG
1403 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1404#endif
1405
1406 return psxHu8(0x1800) = cdr.Ctrl;
1407}
1408
1409/*
1410cdrWrite0:
1411 0 - to send a command / 1 - to get the result
1412*/
1413
1414void cdrWrite0(unsigned char rt) {
1415#ifdef CDR_LOG
1416 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1417#endif
1418 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1419
9f8b032d 1420 if (rt == 0) {
ef79bbde
P		 1421 cdr.ParamP = 0;
1422 cdr.ParamC = 0;
1423 cdr.ResultReady = 0;
1424 }
1425}
1426
1427unsigned char cdrRead1(void) {
1428 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
9f8b032d 1429 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1430 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1431 cdr.ResultP++;
ef79bbde
P		 1432 if (cdr.ResultP == cdr.ResultC)
1433 cdr.ResultReady = 0;
1434 } else {
1435 psxHu8(0x1801) = 0;
1436 }
1437#ifdef CDR_LOG
1438 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1439#endif
1440 return psxHu8(0x1801);
1441}
1442
1443void cdrWrite1(unsigned char rt) {
1444 int i;
1445
1446#ifdef CDR_LOG
1447 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1448#endif
9f8b032d 1449
1450
1451 // Tekken: CDXA fade-out
1452 if( (cdr.Ctrl & 3) == 3 ) {
1453 //cdr.AttenuatorRight[0] = rt;
1454 }
1455
1456
ef79bbde 1457// psxHu8(0x1801) = rt;
9f8b032d 1458 cdr.Cmd = rt;
ef79bbde
P		 1459 cdr.OCUP = 0;
1460
1461#ifdef CDRCMD_DEBUG
1462 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1463 if (cdr.ParamC) {
1464 SysPrintf(" Param[%d] = {", cdr.ParamC);
1465 for (i = 0; i < cdr.ParamC; i++)
1466 SysPrintf(" %x,", cdr.Param[i]);
1467 SysPrintf("}\n");
1468 } else {
1469 SysPrintf("\n");
1470 }
1471#endif
1472
1473 if (cdr.Ctrl & 0x1) return;
1474
9f8b032d 1475 switch (cdr.Cmd) {
ef79bbde 1476 case CdlSync:
9f8b032d 1477 cdr.Ctrl |= 0x80;
ef79bbde 1478 cdr.Stat = NoIntr;
9f8b032d 1479 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1480 break;
1481
1482 case CdlNop:
9f8b032d 1483 cdr.Ctrl |= 0x80;
ef79bbde 1484 cdr.Stat = NoIntr;
9f8b032d 1485
1486 // Twisted Metal 3 - fix music
1487 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1488 break;
1489
1490 case CdlSetloc:
9f8b032d 1491 StopReading();
1492 cdr.Seeked = FALSE;
1493 for (i = 0; i < 3; i++)
1494 cdr.SetSector[i] = btoi(cdr.Param[i]);
ef79bbde 1495 cdr.SetSector[3] = 0;
9f8b032d 1496
1497 /*
1498 if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1499 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1500 }*/
1501
1502 cdr.Ctrl |= 0x80;
ef79bbde 1503 cdr.Stat = NoIntr;
9f8b032d 1504 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1505 break;
1506
1507 case CdlPlay:
9f8b032d 1508 // Vib Ribbon: try same track again
1509 StopCdda();
1510
1511 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1512 if (CDR_getTN(cdr.ResultTN) != -1) {
1513 if (cdr.CurTrack > cdr.ResultTN[1])
1514 cdr.CurTrack = cdr.ResultTN[1];
1515 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1516 int tmp = cdr.ResultTD[2];
1517 cdr.ResultTD[2] = cdr.ResultTD[0];
1518 cdr.ResultTD[0] = tmp;
1519 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1520 }
ef79bbde 1521 }
9f8b032d 1522 } else if (!Config.Cdda) {
1523 CDR_play(cdr.SetSector);
1524 }
1525
1526 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1527 // - fixes ribbon timing + music CD mode
1528 //TODO?
1529 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1530
1531
1532 cdr.Play = TRUE;
1533
1534 cdr.StatP |= STATUS_SEEK;
1535 cdr.StatP &= ~STATUS_ROTATING;
1536
1537 cdr.Ctrl |= 0x80;
1538 cdr.Stat = NoIntr;
1539 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1540 break;
1541
1542 case CdlForward:
9f8b032d 1543 //if (cdr.CurTrack < 0xaa)
1544 // cdr.CurTrack++;
1545 cdr.Ctrl |= 0x80;
ef79bbde 1546 cdr.Stat = NoIntr;
9f8b032d 1547 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1548 break;
1549
1550 case CdlBackward:
9f8b032d 1551 //if (cdr.CurTrack > 1)
1552 //cdr.CurTrack--;
1553 cdr.Ctrl |= 0x80;
1554 cdr.Stat = NoIntr;
1555 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1556 break;
1557
1558 case CdlReadN:
9f8b032d 1559 cdr.Irq = 0;
1560 StopReading();
1561 cdr.Ctrl|= 0x80;
1562 cdr.Stat = NoIntr;
1563 StartReading(1, 0x800);
1564 break;
ef79bbde
P		 1565
1566 case CdlStandby:
9f8b032d 1567 StopCdda();
1568 StopReading();
1569 cdr.Ctrl |= 0x80;
1570 cdr.Stat = NoIntr;
1571 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1572 break;
1573
1574 case CdlStop:
9f8b032d 1575 // GameShark CD Player: Reset CDDA to track start
1576 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1577 cdr.SetSectorPlay[0] = stat.Time[0];
1578 cdr.SetSectorPlay[1] = stat.Time[1];
1579 cdr.SetSectorPlay[2] = stat.Time[2];
1580
1581 Find_CurTrack();
1582
1583
1584 // grab time for current track
1585 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1586
1587 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1588 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1589 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1590 }
1591
1592 StopCdda();
1593 StopReading();
1594
1595 cdr.Ctrl |= 0x80;
1596 cdr.Stat = NoIntr;
1597 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1598 break;
1599
1600 case CdlPause:
9f8b032d 1601 /*
1602 GameShark CD Player: save time for resume
1603
1604 Twisted Metal - World Tour: don't save times for DATA reads
1605 - Only get 1 chance to do this right
1606 */
1607 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1608 cdr.SetSectorPlay[0] = stat.Time[0];
1609 cdr.SetSectorPlay[1] = stat.Time[1];
1610 cdr.SetSectorPlay[2] = stat.Time[2];
1611 }
ef79bbde 1612
9f8b032d 1613 StopCdda();
1614 StopReading();
1615 cdr.Ctrl |= 0x80;
1616 cdr.Stat = NoIntr;
1617
1618 /*
1619 Gundam Battle Assault 2: much slower (*)
1620 - Fixes boot, gameplay
1621
1622 Hokuto no Ken 2: slower
1623 - Fixes intro + subtitles
1624
1625 InuYasha - Feudal Fairy Tale: slower
1626 - Fixes battles
1627 */
1628 AddIrqQueue(cdr.Cmd, cdReadTime * 3);
1629 break;
1630
1631 case CdlReset:
ef79bbde 1632 case CdlInit:
9f8b032d 1633 StopCdda();
1634 StopReading();
1635 cdr.Ctrl |= 0x80;
1636 cdr.Stat = NoIntr;
1637 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1638 break;
1639
1640 case CdlMute:
1641 cdr.Muted = TRUE;
9f8b032d 1642 cdr.Ctrl |= 0x80;
ef79bbde 1643 cdr.Stat = NoIntr;
9f8b032d 1644 AddIrqQueue(cdr.Cmd, 0x800);
1645
1646 // Duke Nukem - Time to Kill
1647 // - do not directly set cd-xa volume
1648 //SPU_writeRegister( H_CDLeft, 0x0000 );
1649 //SPU_writeRegister( H_CDRight, 0x0000 );
ef79bbde
P		 1650 break;
1651
1652 case CdlDemute:
1653 cdr.Muted = FALSE;
9f8b032d 1654 cdr.Ctrl |= 0x80;
ef79bbde 1655 cdr.Stat = NoIntr;
9f8b032d 1656 AddIrqQueue(cdr.Cmd, 0x800);
1657
1658 // Duke Nukem - Time to Kill
1659 // - do not directly set cd-xa volume
1660 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1661 //SPU_writeRegister( H_CDRight, 0x7f00 );
ef79bbde
P		 1662 break;
1663
1664 case CdlSetfilter:
1665 cdr.File = cdr.Param[0];
1666 cdr.Channel = cdr.Param[1];
9f8b032d 1667 cdr.Ctrl |= 0x80;
ef79bbde 1668 cdr.Stat = NoIntr;
9f8b032d 1669 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1670 break;
1671
1672 case CdlSetmode:
1673#ifdef CDR_LOG
9f8b032d 1674 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
ef79bbde
P		 1675#endif
1676 cdr.Mode = cdr.Param[0];
9f8b032d 1677 cdr.Ctrl |= 0x80;
ef79bbde 1678 cdr.Stat = NoIntr;
9f8b032d 1679 AddIrqQueue(cdr.Cmd, 0x800);
1680
1681 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1682 // - fixes choppy movie sound
1683 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1684 StopCdda();
ef79bbde
P		 1685 break;
1686
1687 case CdlGetmode:
9f8b032d 1688 cdr.Ctrl |= 0x80;
ef79bbde 1689 cdr.Stat = NoIntr;
9f8b032d 1690 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1691 break;
1692
1693 case CdlGetlocL:
9f8b032d 1694 cdr.Ctrl |= 0x80;
1695 cdr.Stat = NoIntr;
1696
1697 // Crusaders of Might and Magic - cutscene speech
1698 AddIrqQueue(cdr.Cmd, 0x800);
1699 break;
ef79bbde
P		 1700
1701 case CdlGetlocP:
9f8b032d 1702 cdr.Ctrl |= 0x80;
1703 cdr.Stat = NoIntr;
1704
1705 // GameShark CDX / Lite Player: pretty narrow time window
1706 // - doesn't always work due to time inprecision
1707 //AddIrqQueue(cdr.Cmd, 0x28);
1708
1709 // Tomb Raider 2 - cdda
53951880 1710 //AddIrqQueue(cdr.Cmd, 0x40);
1711
1712 // rearmed: the above works in pcsxr-svn, but breaks here
1713 // (TOCA world touring cars), perhaps some other code is not merged yet
1714 AddIrqQueue(cdr.Cmd, 0x1000);
ef79bbde
P		 1715 break;
1716
1717 case CdlGetTN:
9f8b032d 1718 cdr.Ctrl |= 0x80;
1719 cdr.Stat = NoIntr;
1720 //AddIrqQueue(cdr.Cmd, 0x800);
1721
1722 // GameShark CDX CD Player: very long time
1723 AddIrqQueue(cdr.Cmd, 0x100000);
1724 break;
ef79bbde
P		 1725
1726 case CdlGetTD:
9f8b032d 1727 cdr.Ctrl |= 0x80;
ef79bbde 1728 cdr.Stat = NoIntr;
9f8b032d 1729 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1730 break;
1731
1732 case CdlSeekL:
1733// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1734 cdr.Ctrl |= 0x80;
1735 cdr.Stat = NoIntr;
1736 AddIrqQueue(cdr.Cmd, 0x800);
1737
1738 StopCdda();
1739 StopReading();
1740
1741 break;
ef79bbde
P		 1742
1743 case CdlSeekP:
1744// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1745 cdr.Ctrl |= 0x80;
ef79bbde 1746 cdr.Stat = NoIntr;
9f8b032d 1747
1748 // Tomb Raider 2 - reset cdda
1749 StopCdda();
1750 StopReading();
1751
1752 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1753 break;
1754
9f8b032d 1755 // Destruction Derby: read TOC? GetTD after this
1756 case CdlReadT:
1757 cdr.Ctrl |= 0x80;
1758 cdr.Stat = NoIntr;
1759 AddIrqQueue(cdr.Cmd, 0x800);
1760 break;
1761
ef79bbde 1762 case CdlTest:
9f8b032d 1763 cdr.Ctrl |= 0x80;
ef79bbde 1764 cdr.Stat = NoIntr;
9f8b032d 1765 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1766 break;
1767
1768 case CdlID:
9f8b032d 1769 cdr.Ctrl |= 0x80;
ef79bbde 1770 cdr.Stat = NoIntr;
9f8b032d 1771 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1772 break;
1773
1774 case CdlReadS:
9f8b032d 1775 cdr.Irq = 0;
1776 StopReading();
1777 cdr.Ctrl |= 0x80;
1778 cdr.Stat = NoIntr;
1779 StartReading(2, 0x800);
1780 break;
ef79bbde
P		 1781
1782 case CdlReadToc:
9f8b032d 1783 cdr.Ctrl |= 0x80;
ef79bbde 1784 cdr.Stat = NoIntr;
9f8b032d 1785 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1786 break;
1787
1788 default:
1789#ifdef CDR_LOG
9f8b032d 1790 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
ef79bbde 1791#endif
9f8b032d 1792 return;
1793 }
ef79bbde
P		 1794 if (cdr.Stat != NoIntr) {
1795 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1796 }
1797}
1798
1799unsigned char cdrRead2(void) {
1800 unsigned char ret;
1801
1802 if (cdr.Readed == 0) {
1803 ret = 0;
1804 } else {
1805 ret = *cdr.pTransfer++;
1806 }
1807
1808#ifdef CDR_LOG
1809 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1810#endif
1811 return ret;
1812}
1813
1814void cdrWrite2(unsigned char rt) {
1815#ifdef CDR_LOG
1816 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1817#endif
9f8b032d 1818
1819 // Tekken: CDXA fade-out
1820 if( (cdr.Ctrl & 3) == 2 ) {
1821 //cdr.AttenuatorLeft[0] = rt;
1822 }
1823 else if( (cdr.Ctrl & 3) == 3 ) {
1824 //cdr.AttenuatorRight[1] = rt;
1825 }
1826
1827
1828 if (cdr.Ctrl & 0x1) {
ef79bbde
P		 1829 switch (rt) {
1830 case 0x07:
9f8b032d 1831 cdr.ParamP = 0;
ef79bbde
P		 1832 cdr.ParamC = 0;
1833 cdr.ResultReady = 1; //0;
1834 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1835 break;
1836
1837 default:
1838 cdr.Reg2 = rt;
1839 break;
1840 }
9f8b032d 1841 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
ef79bbde
P		 1842 cdr.Param[cdr.ParamP++] = rt;
1843 cdr.ParamC++;
1844 }
1845}
1846
1847unsigned char cdrRead3(void) {
1848 if (cdr.Stat) {
1849 if (cdr.Ctrl & 0x1)
1850 psxHu8(0x1803) = cdr.Stat | 0xE0;
1851 else
1852 psxHu8(0x1803) = 0xff;
1853 } else {
1854 psxHu8(0x1803) = 0;
1855 }
1856#ifdef CDR_LOG
1857 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1858#endif
1859 return psxHu8(0x1803);
1860}
1861
1862void cdrWrite3(unsigned char rt) {
1863#ifdef CDR_LOG
1864 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1865#endif
9f8b032d 1866/*
1867 // Tekken: CDXA fade-out
1868 if( (cdr.Ctrl & 3) == 2 ) {
1869 cdr.AttenuatorLeft[1] = rt;
1870 }
1871 else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1872#ifdef CDR_LOG
1873 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1874 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1875 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1876#endif
1877 }
1878*/
1879
1880 // GameShark CDX CD Player: Irq timing mania
1881 if( rt == 0 &&
1882 cdr.Irq != 0 && cdr.Irq != 0xff &&
1883 cdr.ResultReady == 0 ) {
1884
1885 // GS CDX: ~0x28 cycle timing - way too precise
1886 if( cdr.Irq == CdlGetlocP ) {
1887 cdrInterrupt();
1888
1889 psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1890 }
1891 }
1892
1893
1894 if (rt == 0x07 && cdr.Ctrl & 0x1) {
ef79bbde
P		 1895 cdr.Stat = 0;
1896
1897 if (cdr.Irq == 0xff) {
1898 cdr.Irq = 0;
1899 return;
1900 }
9f8b032d 1901
1902 if (cdr.Reading && !cdr.ResultReady) {
1903 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1904 }
ef79bbde
P		 1905
1906 return;
1907 }
9f8b032d 1908
ef79bbde
P		 1909 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1910 cdr.Readed = 1;
1911 cdr.pTransfer = cdr.Transfer;
1912
1913 switch (cdr.Mode & 0x30) {
9f8b032d 1914 case MODE_SIZE_2328:
ef79bbde
P		 1915 case 0x00:
1916 cdr.pTransfer += 12;
1917 break;
9f8b032d 1918
1919 case MODE_SIZE_2340:
1920 cdr.pTransfer += 0;
1921 break;
1922
ef79bbde
P		 1923 default:
1924 break;
1925 }
1926 }
1927}
1928
1929void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1930 u32 cdsize;
1931 u8 *ptr;
1932
1933#ifdef CDR_LOG
1934 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1935#endif
1936
1937 switch (chcr) {
1938 case 0x11000000:
1939 case 0x11400100:
1940 if (cdr.Readed == 0) {
1941#ifdef CDR_LOG
1942 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1943#endif
1944 break;
1945 }
1946
1947 cdsize = (bcr & 0xffff) * 4;
1948
9f8b032d 1949 // Ape Escape: bcr = 0001 / 0000
1950 // - fix boot
1951 if( cdsize == 0 )
1952 {
1953 switch (cdr.Mode & 0x30) {
1954 case 0x00: cdsize = 2048; break;
1955 case MODE_SIZE_2328: cdsize = 2328; break;
1956 case MODE_SIZE_2340: cdsize = 2340; break;
1957 }
1958 }
1959
1960
ef79bbde
P		 1961 ptr = (u8 *)PSXM(madr);
1962 if (ptr == NULL) {
1963#ifdef CPU_LOG
1964 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1965#endif
1966 break;
1967 }
9f8b032d 1968
1969 /*
1970 GS CDX: Enhancement CD crash
1971 - Setloc 0:0:0
1972 - CdlPlay
1973 - Spams DMA3 and gets buffer overrun
1974 */
1975
1976 if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
1977 {
1978 // avoid crash - probably should wrap here
1979 //memcpy(ptr, cdr.pTransfer, cdsize);
1980 }
1981 else
1982 {
1983 memcpy(ptr, cdr.pTransfer, cdsize);
1984 }
1985
ef79bbde
P		 1986 psxCpu->Clear(madr, cdsize / 4);
1987 cdr.pTransfer += cdsize;
9f8b032d 1988
1989
1990 // burst vs normal
1991 if( chcr == 0x11400100 ) {
1992 CDRDMA_INT( (cdsize/4) / 4 );
1993 }
1994 else if( chcr == 0x11000000 ) {
1995 CDRDMA_INT( (cdsize/4) * 1 );
1996 }
1997 return;
1998
ef79bbde
P		 1999 default:
2000#ifdef CDR_LOG
2001 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2002#endif
2003 break;
2004 }
2005
2006 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2007 DMA_INTERRUPT(3);
2008}
2009
9f8b032d 2010void cdrDmaInterrupt()
2011{
2012 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2013 DMA_INTERRUPT(3);
2014}
2015
ef79bbde
P		 2016void cdrReset() {
2017 memset(&cdr, 0, sizeof(cdr));
2018 cdr.CurTrack = 1;
2019 cdr.File = 1;
2020 cdr.Channel = 1;
2021}
2022
2023int cdrFreeze(gzFile f, int Mode) {
2024 uintptr_t tmp;
2025
ef79bbde 2026
9f8b032d 2027 if( Mode == 0 ) {
2028 StopCdda();
2029 }
2030
2031 gzfreeze(&cdr, sizeof(cdr));
2032
ef79bbde
P		 2033 if (Mode == 1)
2034 tmp = cdr.pTransfer - cdr.Transfer;
2035
2036 gzfreeze(&tmp, sizeof(tmp));
2037
2038 if (Mode == 0)
2039 cdr.pTransfer = cdr.Transfer + tmp;
2040
2041 return 0;
2042}
9f8b032d 2043
2044void LidInterrupt() {
2045 cdr.LidCheck = 0x20; // start checker
2046
2047 CDRLID_INT( cdReadTime * 3 );
2048
2049 // generate interrupt if none active - open or close
2050 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2051 cdr.Ctrl |= 0x80;
2052 cdr.Stat = NoIntr;
2053 AddIrqQueue(CdlNop, 0x800);
2054 }
2055}
ARM optimized PCSX fork