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cdrom: backport fixes from pcsxr
[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 {
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 */
712 Set_Track();
713 Find_CurTrack();
714 ReadTrack( cdr.SetSectorPlay );
715
716
717 // GameShark CD Player: Calls 2x + Play 2x
718 if( cdr.FastBackward || cdr.FastForward ) {
719 if( cdr.FastForward ) cdr.FastForward--;
720 if( cdr.FastBackward ) cdr.FastBackward--;
721
722 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
723 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
724 cdr.SetSectorPlay[0] = stat.Time[0];
725 cdr.SetSectorPlay[1] = stat.Time[1];
726 cdr.SetSectorPlay[2] = stat.Time[2];
727 }
728 }
729 }
730
731
732 if (!Config.Cdda) {
733 // BIOS CD Player
734 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
735
736 // GameShark CD Player: Resume play
737 if( cdr.ParamC == 0 ) {
738#ifdef CDR_LOG___0
739 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
740 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
741#endif
742
743 //CDR_play( cdr.SetSectorPlay );
744 }
745 else
746 {
747 // BIOS CD Player: Resume play
748 if( cdr.Param[0] == 0 ) {
749#ifdef CDR_LOG___0
750 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
751 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
752#endif
753
754 //CDR_play( cdr.SetSectorPlay );
755 }
756 else {
757#ifdef CDR_LOG___0
758 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
759 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
760#endif
761
762 // BIOS CD Player: Allow track replaying
763 StopCdda();
764
765
766 cdr.CurTrack = btoi( cdr.Param[0] );
767
768 if (CDR_getTN(cdr.ResultTN) != -1) {
769 // check last track
770 if (cdr.CurTrack > cdr.ResultTN[1])
771 cdr.CurTrack = cdr.ResultTN[1];
772
773 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
774 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
775 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
776 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
777
778 // reset data
779 Set_Track();
780 Find_CurTrack();
781 ReadTrack( cdr.SetSectorPlay );
782
783 //CDR_play(cdr.SetSectorPlay);
784 }
785 }
786 }
787 }
788 }
789
790
791 // Vib Ribbon: gameplay checks flag
792 cdr.StatP &= ~STATUS_SEEK;
793
794
ef79bbde
P		 795 cdr.CmdProcess = 0;
796 SetResultSize(1);
9f8b032d 797 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 798 cdr.Result[0] = cdr.StatP;
799 cdr.Stat = Acknowledge;
9f8b032d 800
801 cdr.StatP |= STATUS_PLAY;
802
803
804 // BIOS player - set flag again
805 cdr.Play = TRUE;
806
7f457614 807 CDRPLAY_INT( cdReadTime );
ef79bbde
P		 808 break;
809
9f8b032d 810 case CdlForward:
ef79bbde
P		 811 cdr.CmdProcess = 0;
812 SetResultSize(1);
9f8b032d 813 cdr.StatP |= STATUS_ROTATING;
814 cdr.Result[0] = cdr.StatP;
815 cdr.Stat = Complete;
816
817
818 // GameShark CD Player: Calls 2x + Play 2x
819 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
820 else cdr.FastForward++;
821
822 cdr.FastBackward = 0;
ef79bbde
P		 823 break;
824
9f8b032d 825 case CdlBackward:
ef79bbde
P		 826 cdr.CmdProcess = 0;
827 SetResultSize(1);
9f8b032d 828 cdr.StatP |= STATUS_ROTATING;
829 cdr.Result[0] = cdr.StatP;
830 cdr.Stat = Complete;
831
832
833 // GameShark CD Player: Calls 2x + Play 2x
834 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
835 else cdr.FastBackward++;
836
837 cdr.FastForward = 0;
ef79bbde
P		 838 break;
839
9f8b032d 840 case CdlStandby:
ef79bbde
P		 841 cdr.CmdProcess = 0;
842 SetResultSize(1);
9f8b032d 843 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 844 cdr.Result[0] = cdr.StatP;
845 cdr.Stat = Complete;
846 break;
847
848 case CdlStop:
849 cdr.CmdProcess = 0;
850 SetResultSize(1);
9f8b032d 851 cdr.StatP &= ~STATUS_ROTATING;
ef79bbde
P		 852 cdr.Result[0] = cdr.StatP;
853 cdr.Stat = Complete;
854// cdr.Stat = Acknowledge;
855
9f8b032d 856 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 857 break;
858
859 case CdlPause:
860 SetResultSize(1);
861 cdr.Result[0] = cdr.StatP;
9f8b032d 862 cdr.Stat = Acknowledge;
863
864 AddIrqQueue(CdlPause + 0x20, 0x800);
ef79bbde
P		 865 cdr.Ctrl |= 0x80;
866 break;
867
868 case CdlPause + 0x20:
869 SetResultSize(1);
9f8b032d 870 cdr.StatP &= ~STATUS_READ;
871 cdr.StatP |= STATUS_ROTATING;
ef79bbde 872 cdr.Result[0] = cdr.StatP;
9f8b032d 873 cdr.Stat = Complete;
ef79bbde
P		 874 break;
875
9f8b032d 876 case CdlInit:
ef79bbde 877 SetResultSize(1);
9f8b032d 878 cdr.StatP = STATUS_ROTATING;
ef79bbde 879 cdr.Result[0] = cdr.StatP;
9f8b032d 880 cdr.Stat = Acknowledge;
ef79bbde 881// if (!cdr.Init) {
9f8b032d 882 AddIrqQueue(CdlInit + 0x20, 0x800);
ef79bbde
P		 883// }
884 break;
885
886 case CdlInit + 0x20:
887 SetResultSize(1);
888 cdr.Result[0] = cdr.StatP;
9f8b032d 889 cdr.Stat = Complete;
ef79bbde
P		 890 cdr.Init = 1;
891 break;
892
9f8b032d 893 case CdlMute:
ef79bbde 894 SetResultSize(1);
9f8b032d 895 cdr.StatP |= STATUS_ROTATING;
896 cdr.Result[0] = cdr.StatP;
897 cdr.Stat = Acknowledge;
ef79bbde
P		 898 break;
899
9f8b032d 900 case CdlDemute:
ef79bbde 901 SetResultSize(1);
9f8b032d 902 cdr.StatP |= STATUS_ROTATING;
903 cdr.Result[0] = cdr.StatP;
904 cdr.Stat = Acknowledge;
ef79bbde
P		 905 break;
906
9f8b032d 907 case CdlSetfilter:
ef79bbde 908 SetResultSize(1);
9f8b032d 909 cdr.StatP |= STATUS_ROTATING;
910 cdr.Result[0] = cdr.StatP;
911 cdr.Stat = Acknowledge;
912 break;
ef79bbde
P		 913
914 case CdlSetmode:
915 SetResultSize(1);
9f8b032d 916 cdr.StatP |= STATUS_ROTATING;
917 cdr.Result[0] = cdr.StatP;
918 cdr.Stat = Acknowledge;
919 break;
ef79bbde 920
9f8b032d 921 case CdlGetmode:
ef79bbde 922 SetResultSize(6);
9f8b032d 923 cdr.StatP |= STATUS_ROTATING;
924 cdr.Result[0] = cdr.StatP;
925 cdr.Result[1] = cdr.Mode;
926 cdr.Result[2] = cdr.File;
927 cdr.Result[3] = cdr.Channel;
928 cdr.Result[4] = 0;
929 cdr.Result[5] = 0;
930 cdr.Stat = Acknowledge;
931 break;
ef79bbde 932
9f8b032d 933 case CdlGetlocL:
ef79bbde 934 SetResultSize(8);
9f8b032d 935 for (i = 0; i < 8; i++)
ef79bbde 936 cdr.Result[i] = cdr.Transfer[i];
9f8b032d 937 cdr.Stat = Acknowledge;
938 break;
ef79bbde
P		 939
940 case CdlGetlocP:
9f8b032d 941 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
942 SetResultSize(17);
943 memset( cdr.Result, 0, 16 );
944
ef79bbde
P		 945 subq = (struct SubQ *)CDR_getBufferSub();
946
947 if (subq != NULL) {
948 cdr.Result[0] = subq->TrackNumber;
949 cdr.Result[1] = subq->IndexNumber;
950 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
951 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
952
9f8b032d 953
954 // subQ integrity check - data only (skip audio)
955 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
ef79bbde
P		 956 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
957 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
958 }
9f8b032d 959 }
ef79bbde 960 } else {
7f457614 961 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
962 Create_Fake_Subq();
ef79bbde 963
ef79bbde 964
9f8b032d 965 // track # / index #
966 cdr.Result[0] = itob(cdr.CurTrack);
967 cdr.Result[1] = itob(fake_subq_index);
ef79bbde 968
9f8b032d 969 // local
970 cdr.Result[2] = itob( fake_subq_local[0] );
971 cdr.Result[3] = itob( fake_subq_local[1] );
972 cdr.Result[4] = itob( fake_subq_local[2] );
ef79bbde 973
9f8b032d 974 // absolute
975 cdr.Result[5] = itob( fake_subq_real[0] );
976 cdr.Result[6] = itob( fake_subq_real[1] );
977 cdr.Result[7] = itob( fake_subq_real[2] );
ef79bbde
P		 978 }
979
9f8b032d 980 // redump.org - wipe time
981 /*if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
982 memset( cdr.Result+2, 0, 6 );
983 }
984 */
985
ef79bbde
P		 986 cdr.Stat = Acknowledge;
987 break;
988
9f8b032d 989 case CdlGetTN:
990 // 5-Star Racing: don't stop CDDA
991 //
992 // Vib Ribbon: CD swap
993 StopReading();
994
ef79bbde
P		 995 cdr.CmdProcess = 0;
996 SetResultSize(3);
9f8b032d 997 cdr.StatP |= STATUS_ROTATING;
998 cdr.Result[0] = cdr.StatP;
999 if (CDR_getTN(cdr.ResultTN) == -1) {
ef79bbde 1000 cdr.Stat = DiskError;
9f8b032d 1001 cdr.Result[0] |= STATUS_ERROR;
1002 } else {
1003 cdr.Stat = Acknowledge;
1004 cdr.Result[1] = itob(cdr.ResultTN[0]);
1005 cdr.Result[2] = itob(cdr.ResultTN[1]);
1006 }
1007 break;
ef79bbde 1008
9f8b032d 1009 case CdlGetTD:
ef79bbde
P		 1010 cdr.CmdProcess = 0;
1011 cdr.Track = btoi(cdr.Param[0]);
1012 SetResultSize(4);
9f8b032d 1013 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 1014 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1015 cdr.Stat = DiskError;
9f8b032d 1016 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1017 } else {
1018 cdr.Stat = Acknowledge;
1019 cdr.Result[0] = cdr.StatP;
1020 cdr.Result[1] = itob(cdr.ResultTD[2]);
1021 cdr.Result[2] = itob(cdr.ResultTD[1]);
1022 cdr.Result[3] = itob(cdr.ResultTD[0]);
1023 }
1024 break;
1025
9f8b032d 1026 case CdlSeekL:
ef79bbde 1027 SetResultSize(1);
9f8b032d 1028 cdr.StatP |= STATUS_ROTATING;
1029 cdr.Result[0] = cdr.StatP;
1030 cdr.StatP |= STATUS_SEEK;
1031 cdr.Stat = Acknowledge;
1032
1033 /*
1034 Crusaders of Might and Magic = 0.5x-4x
1035 - fix cutscene speech start
1036
1037 Eggs of Steel = 2x-?
1038 - fix new game
1039
1040 Medievil = ?-4x
1041 - fix cutscene speech
1042
1043 Rockman X5 = 0.5-4x
1044 - fix capcom logo
1045 */
1046 AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
ef79bbde
P		 1047 break;
1048
9f8b032d 1049 case CdlSeekL + 0x20:
ef79bbde 1050 SetResultSize(1);
9f8b032d 1051 cdr.StatP |= STATUS_ROTATING;
1052 cdr.StatP &= ~STATUS_SEEK;
1053 cdr.Result[0] = cdr.StatP;
1054 cdr.Seeked = TRUE;
1055 cdr.Stat = Complete;
1056
1057
1058 // Mega Man Legends 2: must update read cursor for getlocp
1059 ReadTrack( cdr.SetSector );
ef79bbde
P		 1060 break;
1061
9f8b032d 1062 case CdlSeekP:
ef79bbde 1063 SetResultSize(1);
9f8b032d 1064 cdr.StatP |= STATUS_ROTATING;
1065 cdr.Result[0] = cdr.StatP;
1066 cdr.StatP |= STATUS_SEEK;
1067 cdr.Stat = Acknowledge;
1068 AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
ef79bbde
P		 1069 break;
1070
9f8b032d 1071 case CdlSeekP + 0x20:
ef79bbde 1072 SetResultSize(1);
9f8b032d 1073 cdr.StatP |= STATUS_ROTATING;
1074 cdr.StatP &= ~STATUS_SEEK;
1075 cdr.Result[0] = cdr.StatP;
1076 cdr.Stat = Complete;
1077 cdr.Seeked = TRUE;
1078
1079 // GameShark Music Player
1080 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1081
1082 // Tomb Raider 2: must update read cursor for getlocp
1083 Find_CurTrack();
1084 ReadTrack( cdr.SetSectorPlay );
ef79bbde
P		 1085 break;
1086
1087 case CdlTest:
9f8b032d 1088 cdr.Stat = Acknowledge;
1089 switch (cdr.Param[0]) {
1090 case 0x20: // System Controller ROM Version
ef79bbde
P		 1091 SetResultSize(4);
1092 memcpy(cdr.Result, Test20, 4);
1093 break;
1094 case 0x22:
1095 SetResultSize(8);
1096 memcpy(cdr.Result, Test22, 4);
1097 break;
1098 case 0x23: case 0x24:
1099 SetResultSize(8);
1100 memcpy(cdr.Result, Test23, 4);
1101 break;
9f8b032d 1102 }
ef79bbde
P		 1103 break;
1104
9f8b032d 1105 case CdlID:
ef79bbde 1106 SetResultSize(1);
9f8b032d 1107 cdr.StatP |= STATUS_ROTATING;
1108 cdr.Result[0] = cdr.StatP;
1109 cdr.Stat = Acknowledge;
1110 AddIrqQueue(CdlID + 0x20, 0x800);
ef79bbde
P		 1111 break;
1112
1113 case CdlID + 0x20:
1114 SetResultSize(8);
9f8b032d 1115
1116 if (CDR_getStatus(&stat) == -1) {
1117 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1118 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1119 }
1120 else {
1121 if (stat.Type == 2) {
1122 // Music CD
1123 cdr.Result[0] = 0x08;
1124 cdr.Result[1] = 0x10;
1125
1126 cdr.Result[1] |= 0x80;
1127 }
1128 else {
1129 // Data CD
1130 if (CdromId[0] == '\0') {
1131 cdr.Result[0] = 0x00;
1132 cdr.Result[1] = 0x80;
1133 }
1134 else {
1135 cdr.Result[0] = 0x08;
1136 cdr.Result[1] = 0x00;
1137 }
1138 }
1139 }
1140
ef79bbde
P		 1141 cdr.Result[2] = 0x00;
1142 cdr.Result[3] = 0x00;
1143 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1144 cdr.Stat = Complete;
1145 break;
1146
1147 case CdlReset:
1148 SetResultSize(1);
9f8b032d 1149 cdr.StatP = STATUS_ROTATING;
ef79bbde 1150 cdr.Result[0] = cdr.StatP;
9f8b032d 1151 cdr.Stat = Acknowledge;
ef79bbde
P		 1152 break;
1153
9f8b032d 1154 case CdlReadT:
1155 SetResultSize(1);
1156 cdr.StatP |= STATUS_ROTATING;
1157 cdr.Result[0] = cdr.StatP;
1158 cdr.Stat = Acknowledge;
1159 AddIrqQueue(CdlReadT + 0x20, 0x800);
1160 break;
1161
1162 case CdlReadT + 0x20:
1163 SetResultSize(1);
1164 cdr.StatP |= STATUS_ROTATING;
1165 cdr.Result[0] = cdr.StatP;
1166 cdr.Stat = Complete;
1167 break;
1168
1169 case CdlReadToc:
ef79bbde 1170 SetResultSize(1);
9f8b032d 1171 cdr.StatP |= STATUS_ROTATING;
1172 cdr.Result[0] = cdr.StatP;
1173 cdr.Stat = Acknowledge;
1174 AddIrqQueue(CdlReadToc + 0x20, 0x800);
ef79bbde
P		 1175 break;
1176
9f8b032d 1177 case CdlReadToc + 0x20:
ef79bbde 1178 SetResultSize(1);
9f8b032d 1179 cdr.StatP |= STATUS_ROTATING;
1180 cdr.Result[0] = cdr.StatP;
1181 cdr.Stat = Complete;
ef79bbde
P		 1182 break;
1183
1184 case AUTOPAUSE:
1185 cdr.OCUP = 0;
1186/* SetResultSize(1);
1187 StopCdda();
1188 StopReading();
1189 cdr.OCUP = 0;
9f8b032d 1190 cdr.StatP&=~0x20;
ef79bbde 1191 cdr.StatP|= 0x2;
9f8b032d 1192 cdr.Result[0] = cdr.StatP;
1193 cdr.Stat = DataEnd;
ef79bbde
P		 1194*/ AddIrqQueue(CdlPause, 0x800);
1195 break;
1196
1197 case READ_ACK:
1198 if (!cdr.Reading) return;
1199
9f8b032d 1200
1201 // Fighting Force 2 - update subq time immediately
1202 // - fixes new game
1203 ReadTrack( cdr.SetSector );
1204
1205
1206 // Crusaders of Might and Magic - update getlocl now
1207 // - fixes cutscene speech
1208 {
1209 u8 *buf = CDR_getBuffer();
1210 memcpy(cdr.Transfer, buf, 8);
1211 }
1212
1213
1214 /*
1215 Duke Nukem: Land of the Babes - seek then delay read for one frame
1216 - fixes cutscenes
1217 */
1218
ef79bbde
P		 1219 if (!cdr.Seeked) {
1220 cdr.Seeked = TRUE;
ef79bbde 1221
9f8b032d 1222 cdr.StatP |= STATUS_SEEK;
1223 cdr.StatP &= ~STATUS_READ;
1224
1225 // Crusaders of Might and Magic - use short time
1226 // - fix cutscene speech (startup)
1227
1228 // ??? - use more accurate seek time later
1229 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1230 } else {
1231 cdr.StatP |= STATUS_READ;
1232 cdr.StatP &= ~STATUS_SEEK;
1233
1234 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1235 }
ef79bbde 1236
ef79bbde 1237 SetResultSize(1);
9f8b032d 1238 cdr.StatP |= STATUS_ROTATING;
1239 cdr.Result[0] = cdr.StatP;
1240 cdr.Stat = Acknowledge;
ef79bbde
P		 1241 break;
1242
ef79bbde
P		 1243 case 0xff:
1244 return;
1245
1246 default:
1247 cdr.Stat = Complete;
1248 break;
1249 }
1250
9f8b032d 1251 Check_Shell( Irq );
1252
ef79bbde
P		 1253 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1254 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1255 }
1256
1257#ifdef CDR_LOG
1258 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1259#endif
1260}
1261
1262void cdrReadInterrupt() {
1263 u8 *buf;
1264
1265 if (!cdr.Reading)
1266 return;
1267
9f8b032d 1268 if (cdr.Irq || cdr.Stat) {
1269 CDREAD_INT(0x100);
ef79bbde
P		 1270 return;
1271 }
1272
1273#ifdef CDR_LOG
1274 CDR_LOG("cdrReadInterrupt() Log: KEY END");
1275#endif
1276
9f8b032d 1277 cdr.OCUP = 1;
ef79bbde 1278 SetResultSize(1);
9f8b032d 1279 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1280 cdr.StatP &= ~STATUS_SEEK;
1281 cdr.Result[0] = cdr.StatP;
ef79bbde 1282
9f8b032d 1283 ReadTrack( cdr.SetSector );
ef79bbde
P		 1284
1285 buf = CDR_getBuffer();
1286 if (buf == NULL)
1287 cdr.RErr = -1;
1288
1289 if (cdr.RErr == -1) {
1290#ifdef CDR_LOG
1291 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1292#endif
1293 memset(cdr.Transfer, 0, DATA_SIZE);
1294 cdr.Stat = DiskError;
9f8b032d 1295 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1296 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1297 return;
1298 }
1299
1300 memcpy(cdr.Transfer, buf, DATA_SIZE);
1301 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1302
ef79bbde
P		 1303
1304#ifdef CDR_LOG
1305 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1306#endif
1307
9f8b032d 1308 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1309 // Firemen 2: Multi-XA files - briefings, cutscenes
1310 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1311 cdr.File = cdr.Transfer[4 + 0];
1312 cdr.Channel = cdr.Transfer[4 + 1];
1313 }
1314
ef79bbde 1315 if ((cdr.Transfer[4 + 2] & 0x4) &&
9f8b032d 1316 (cdr.Transfer[4 + 1] == cdr.Channel) &&
ef79bbde
P		 1317 (cdr.Transfer[4 + 0] == cdr.File)) {
1318 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1319
1320 if (!ret) {
1321 SPU_playADPCMchannel(&cdr.Xa);
1322 cdr.FirstSector = 0;
9f8b032d 1323
1324
1325 // Crash Team Racing: music, speech
1326
1327 // signal ADPCM data ready
1328 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
ef79bbde
P		 1329 }
1330 else cdr.FirstSector = -1;
1331 }
1332 }
1333
1334 cdr.SetSector[2]++;
9f8b032d 1335 if (cdr.SetSector[2] == 75) {
1336 cdr.SetSector[2] = 0;
1337 cdr.SetSector[1]++;
1338 if (cdr.SetSector[1] == 60) {
1339 cdr.SetSector[1] = 0;
1340 cdr.SetSector[0]++;
1341 }
1342 }
1343
1344 cdr.Readed = 0;
1345
1346 // G-Police: Don't autopause ADPCM even if mode set (music)
1347 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1348 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
ef79bbde
P		 1349#ifdef CDR_LOG
1350 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1351#endif
9f8b032d 1352// AddIrqQueue(AUTOPAUSE, 0x2000);
1353 AddIrqQueue(CdlPause, 0x2000);
ef79bbde
P		 1354 }
1355 else {
9f8b032d 1356 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1357 }
1358
1359 /*
1360 Croc 2: $40 - only FORM1 (*)
1361 Judge Dredd: $C8 - only FORM1 (*)
1362 Sim Theme Park - no adpcm at all (zero)
1363 */
1364
1365 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1366 cdr.Stat = DataReady;
1367 } else {
1368 // Breath of Fire 3 - fix inn sleeping
1369 // Rockman X5 - no music restart problem
1370 cdr.Stat = NoIntr;
ef79bbde
P		 1371 }
1372 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
9f8b032d 1373
1374 Check_Shell(0);
ef79bbde
P		 1375}
1376
1377/*
1378cdrRead0:
1379 bit 0 - 0 REG1 command send / 1 REG1 data read
1380 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1381 bit 2 - unknown
1382 bit 3 - unknown
1383 bit 4 - unknown
1384 bit 5 - 1 result ready
1385 bit 6 - 1 dma ready
1386 bit 7 - 1 command being processed
1387*/
1388
1389unsigned char cdrRead0(void) {
1390 if (cdr.ResultReady)
1391 cdr.Ctrl |= 0x20;
1392 else
1393 cdr.Ctrl &= ~0x20;
1394
1395 if (cdr.OCUP)
1396 cdr.Ctrl |= 0x40;
1397// else
1398// cdr.Ctrl &= ~0x40;
1399
1400 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1401 cdr.Ctrl |= 0x18;
1402
1403#ifdef CDR_LOG
1404 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1405#endif
1406
1407 return psxHu8(0x1800) = cdr.Ctrl;
1408}
1409
1410/*
1411cdrWrite0:
1412 0 - to send a command / 1 - to get the result
1413*/
1414
1415void cdrWrite0(unsigned char rt) {
1416#ifdef CDR_LOG
1417 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1418#endif
1419 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1420
9f8b032d 1421 if (rt == 0) {
ef79bbde
P		 1422 cdr.ParamP = 0;
1423 cdr.ParamC = 0;
1424 cdr.ResultReady = 0;
1425 }
1426}
1427
1428unsigned char cdrRead1(void) {
1429 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
9f8b032d 1430 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1431 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1432 cdr.ResultP++;
ef79bbde
P		 1433 if (cdr.ResultP == cdr.ResultC)
1434 cdr.ResultReady = 0;
1435 } else {
1436 psxHu8(0x1801) = 0;
1437 }
1438#ifdef CDR_LOG
1439 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1440#endif
1441 return psxHu8(0x1801);
1442}
1443
1444void cdrWrite1(unsigned char rt) {
1445 int i;
1446
1447#ifdef CDR_LOG
1448 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1449#endif
9f8b032d 1450
1451
1452 // Tekken: CDXA fade-out
1453 if( (cdr.Ctrl & 3) == 3 ) {
1454 //cdr.AttenuatorRight[0] = rt;
1455 }
1456
1457
ef79bbde 1458// psxHu8(0x1801) = rt;
9f8b032d 1459 cdr.Cmd = rt;
ef79bbde
P		 1460 cdr.OCUP = 0;
1461
1462#ifdef CDRCMD_DEBUG
1463 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1464 if (cdr.ParamC) {
1465 SysPrintf(" Param[%d] = {", cdr.ParamC);
1466 for (i = 0; i < cdr.ParamC; i++)
1467 SysPrintf(" %x,", cdr.Param[i]);
1468 SysPrintf("}\n");
1469 } else {
1470 SysPrintf("\n");
1471 }
1472#endif
1473
1474 if (cdr.Ctrl & 0x1) return;
1475
9f8b032d 1476 switch (cdr.Cmd) {
ef79bbde 1477 case CdlSync:
9f8b032d 1478 cdr.Ctrl |= 0x80;
ef79bbde 1479 cdr.Stat = NoIntr;
9f8b032d 1480 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1481 break;
1482
1483 case CdlNop:
9f8b032d 1484 cdr.Ctrl |= 0x80;
ef79bbde 1485 cdr.Stat = NoIntr;
9f8b032d 1486
1487 // Twisted Metal 3 - fix music
1488 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1489 break;
1490
1491 case CdlSetloc:
9f8b032d 1492 StopReading();
1493 cdr.Seeked = FALSE;
1494 for (i = 0; i < 3; i++)
1495 cdr.SetSector[i] = btoi(cdr.Param[i]);
ef79bbde 1496 cdr.SetSector[3] = 0;
9f8b032d 1497
1498 /*
1499 if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1500 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1501 }*/
1502
1503 cdr.Ctrl |= 0x80;
ef79bbde 1504 cdr.Stat = NoIntr;
9f8b032d 1505 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1506 break;
1507
1508 case CdlPlay:
9f8b032d 1509 // Vib Ribbon: try same track again
1510 StopCdda();
1511
1512 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1513 if (CDR_getTN(cdr.ResultTN) != -1) {
1514 if (cdr.CurTrack > cdr.ResultTN[1])
1515 cdr.CurTrack = cdr.ResultTN[1];
1516 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1517 int tmp = cdr.ResultTD[2];
1518 cdr.ResultTD[2] = cdr.ResultTD[0];
1519 cdr.ResultTD[0] = tmp;
1520 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1521 }
ef79bbde 1522 }
9f8b032d 1523 } else if (!Config.Cdda) {
1524 CDR_play(cdr.SetSector);
1525 }
1526
1527 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1528 // - fixes ribbon timing + music CD mode
1529 //TODO?
1530 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1531
1532
1533 cdr.Play = TRUE;
1534
1535 cdr.StatP |= STATUS_SEEK;
1536 cdr.StatP &= ~STATUS_ROTATING;
1537
1538 cdr.Ctrl |= 0x80;
1539 cdr.Stat = NoIntr;
1540 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1541 break;
1542
1543 case CdlForward:
9f8b032d 1544 //if (cdr.CurTrack < 0xaa)
1545 // cdr.CurTrack++;
1546 cdr.Ctrl |= 0x80;
ef79bbde 1547 cdr.Stat = NoIntr;
9f8b032d 1548 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1549 break;
1550
1551 case CdlBackward:
9f8b032d 1552 //if (cdr.CurTrack > 1)
1553 //cdr.CurTrack--;
1554 cdr.Ctrl |= 0x80;
1555 cdr.Stat = NoIntr;
1556 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1557 break;
1558
1559 case CdlReadN:
9f8b032d 1560 cdr.Irq = 0;
1561 StopReading();
1562 cdr.Ctrl|= 0x80;
1563 cdr.Stat = NoIntr;
1564 StartReading(1, 0x800);
1565 break;
ef79bbde
P		 1566
1567 case CdlStandby:
9f8b032d 1568 StopCdda();
1569 StopReading();
1570 cdr.Ctrl |= 0x80;
1571 cdr.Stat = NoIntr;
1572 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1573 break;
1574
1575 case CdlStop:
9f8b032d 1576 // GameShark CD Player: Reset CDDA to track start
1577 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1578 cdr.SetSectorPlay[0] = stat.Time[0];
1579 cdr.SetSectorPlay[1] = stat.Time[1];
1580 cdr.SetSectorPlay[2] = stat.Time[2];
1581
1582 Find_CurTrack();
1583
1584
1585 // grab time for current track
1586 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1587
1588 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1589 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1590 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1591 }
1592
1593 StopCdda();
1594 StopReading();
1595
1596 cdr.Ctrl |= 0x80;
1597 cdr.Stat = NoIntr;
1598 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1599 break;
1600
1601 case CdlPause:
9f8b032d 1602 /*
1603 GameShark CD Player: save time for resume
1604
aa1f7284 1605 Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1606 */
ef79bbde 1607
9f8b032d 1608 StopCdda();
1609 StopReading();
1610 cdr.Ctrl |= 0x80;
1611 cdr.Stat = NoIntr;
1612
1613 /*
1614 Gundam Battle Assault 2: much slower (*)
1615 - Fixes boot, gameplay
1616
1617 Hokuto no Ken 2: slower
1618 - Fixes intro + subtitles
1619
1620 InuYasha - Feudal Fairy Tale: slower
1621 - Fixes battles
1622 */
1623 AddIrqQueue(cdr.Cmd, cdReadTime * 3);
1624 break;
1625
1626 case CdlReset:
ef79bbde 1627 case CdlInit:
9f8b032d 1628 StopCdda();
1629 StopReading();
1630 cdr.Ctrl |= 0x80;
1631 cdr.Stat = NoIntr;
1632 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1633 break;
1634
1635 case CdlMute:
1636 cdr.Muted = TRUE;
9f8b032d 1637 cdr.Ctrl |= 0x80;
ef79bbde 1638 cdr.Stat = NoIntr;
9f8b032d 1639 AddIrqQueue(cdr.Cmd, 0x800);
1640
1641 // Duke Nukem - Time to Kill
1642 // - do not directly set cd-xa volume
1643 //SPU_writeRegister( H_CDLeft, 0x0000 );
1644 //SPU_writeRegister( H_CDRight, 0x0000 );
ef79bbde
P		 1645 break;
1646
1647 case CdlDemute:
1648 cdr.Muted = FALSE;
9f8b032d 1649 cdr.Ctrl |= 0x80;
ef79bbde 1650 cdr.Stat = NoIntr;
9f8b032d 1651 AddIrqQueue(cdr.Cmd, 0x800);
1652
1653 // Duke Nukem - Time to Kill
1654 // - do not directly set cd-xa volume
1655 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1656 //SPU_writeRegister( H_CDRight, 0x7f00 );
ef79bbde
P		 1657 break;
1658
1659 case CdlSetfilter:
1660 cdr.File = cdr.Param[0];
1661 cdr.Channel = cdr.Param[1];
9f8b032d 1662 cdr.Ctrl |= 0x80;
ef79bbde 1663 cdr.Stat = NoIntr;
9f8b032d 1664 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1665 break;
1666
1667 case CdlSetmode:
1668#ifdef CDR_LOG
9f8b032d 1669 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
ef79bbde
P		 1670#endif
1671 cdr.Mode = cdr.Param[0];
9f8b032d 1672 cdr.Ctrl |= 0x80;
ef79bbde 1673 cdr.Stat = NoIntr;
9f8b032d 1674 AddIrqQueue(cdr.Cmd, 0x800);
1675
1676 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1677 // - fixes choppy movie sound
1678 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1679 StopCdda();
ef79bbde
P		 1680 break;
1681
1682 case CdlGetmode:
9f8b032d 1683 cdr.Ctrl |= 0x80;
ef79bbde 1684 cdr.Stat = NoIntr;
9f8b032d 1685 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1686 break;
1687
1688 case CdlGetlocL:
9f8b032d 1689 cdr.Ctrl |= 0x80;
1690 cdr.Stat = NoIntr;
1691
1692 // Crusaders of Might and Magic - cutscene speech
1693 AddIrqQueue(cdr.Cmd, 0x800);
1694 break;
ef79bbde
P		 1695
1696 case CdlGetlocP:
9f8b032d 1697 cdr.Ctrl |= 0x80;
1698 cdr.Stat = NoIntr;
1699
1700 // GameShark CDX / Lite Player: pretty narrow time window
1701 // - doesn't always work due to time inprecision
1702 //AddIrqQueue(cdr.Cmd, 0x28);
1703
1704 // Tomb Raider 2 - cdda
53951880 1705 //AddIrqQueue(cdr.Cmd, 0x40);
1706
1707 // rearmed: the above works in pcsxr-svn, but breaks here
1708 // (TOCA world touring cars), perhaps some other code is not merged yet
1709 AddIrqQueue(cdr.Cmd, 0x1000);
ef79bbde
P		 1710 break;
1711
1712 case CdlGetTN:
9f8b032d 1713 cdr.Ctrl |= 0x80;
1714 cdr.Stat = NoIntr;
1715 //AddIrqQueue(cdr.Cmd, 0x800);
1716
1717 // GameShark CDX CD Player: very long time
1718 AddIrqQueue(cdr.Cmd, 0x100000);
1719 break;
ef79bbde
P		 1720
1721 case CdlGetTD:
9f8b032d 1722 cdr.Ctrl |= 0x80;
ef79bbde 1723 cdr.Stat = NoIntr;
9f8b032d 1724 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1725 break;
1726
1727 case CdlSeekL:
1728// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1729 cdr.Ctrl |= 0x80;
1730 cdr.Stat = NoIntr;
1731 AddIrqQueue(cdr.Cmd, 0x800);
1732
1733 StopCdda();
1734 StopReading();
1735
1736 break;
ef79bbde
P		 1737
1738 case CdlSeekP:
1739// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1740 cdr.Ctrl |= 0x80;
ef79bbde 1741 cdr.Stat = NoIntr;
9f8b032d 1742
1743 // Tomb Raider 2 - reset cdda
1744 StopCdda();
1745 StopReading();
1746
1747 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1748 break;
1749
9f8b032d 1750 // Destruction Derby: read TOC? GetTD after this
1751 case CdlReadT:
1752 cdr.Ctrl |= 0x80;
1753 cdr.Stat = NoIntr;
1754 AddIrqQueue(cdr.Cmd, 0x800);
1755 break;
1756
ef79bbde 1757 case CdlTest:
9f8b032d 1758 cdr.Ctrl |= 0x80;
ef79bbde 1759 cdr.Stat = NoIntr;
9f8b032d 1760 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1761 break;
1762
1763 case CdlID:
9f8b032d 1764 cdr.Ctrl |= 0x80;
ef79bbde 1765 cdr.Stat = NoIntr;
9f8b032d 1766 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1767 break;
1768
1769 case CdlReadS:
9f8b032d 1770 cdr.Irq = 0;
1771 StopReading();
1772 cdr.Ctrl |= 0x80;
1773 cdr.Stat = NoIntr;
1774 StartReading(2, 0x800);
1775 break;
ef79bbde
P		 1776
1777 case CdlReadToc:
9f8b032d 1778 cdr.Ctrl |= 0x80;
ef79bbde 1779 cdr.Stat = NoIntr;
9f8b032d 1780 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1781 break;
1782
1783 default:
1784#ifdef CDR_LOG
9f8b032d 1785 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
ef79bbde 1786#endif
9f8b032d 1787 return;
1788 }
ef79bbde
P		 1789 if (cdr.Stat != NoIntr) {
1790 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1791 }
1792}
1793
1794unsigned char cdrRead2(void) {
1795 unsigned char ret;
1796
1797 if (cdr.Readed == 0) {
1798 ret = 0;
1799 } else {
1800 ret = *cdr.pTransfer++;
1801 }
1802
1803#ifdef CDR_LOG
1804 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1805#endif
1806 return ret;
1807}
1808
1809void cdrWrite2(unsigned char rt) {
1810#ifdef CDR_LOG
1811 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1812#endif
9f8b032d 1813
1814 // Tekken: CDXA fade-out
1815 if( (cdr.Ctrl & 3) == 2 ) {
1816 //cdr.AttenuatorLeft[0] = rt;
1817 }
1818 else if( (cdr.Ctrl & 3) == 3 ) {
1819 //cdr.AttenuatorRight[1] = rt;
1820 }
1821
1822
1823 if (cdr.Ctrl & 0x1) {
ef79bbde
P		 1824 switch (rt) {
1825 case 0x07:
9f8b032d 1826 cdr.ParamP = 0;
ef79bbde
P		 1827 cdr.ParamC = 0;
1828 cdr.ResultReady = 1; //0;
1829 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1830 break;
1831
1832 default:
1833 cdr.Reg2 = rt;
1834 break;
1835 }
9f8b032d 1836 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
ef79bbde
P		 1837 cdr.Param[cdr.ParamP++] = rt;
1838 cdr.ParamC++;
1839 }
1840}
1841
1842unsigned char cdrRead3(void) {
1843 if (cdr.Stat) {
1844 if (cdr.Ctrl & 0x1)
1845 psxHu8(0x1803) = cdr.Stat | 0xE0;
1846 else
1847 psxHu8(0x1803) = 0xff;
1848 } else {
1849 psxHu8(0x1803) = 0;
1850 }
1851#ifdef CDR_LOG
1852 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1853#endif
1854 return psxHu8(0x1803);
1855}
1856
1857void cdrWrite3(unsigned char rt) {
1858#ifdef CDR_LOG
1859 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1860#endif
9f8b032d 1861/*
1862 // Tekken: CDXA fade-out
1863 if( (cdr.Ctrl & 3) == 2 ) {
1864 cdr.AttenuatorLeft[1] = rt;
1865 }
1866 else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1867#ifdef CDR_LOG
1868 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1869 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1870 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1871#endif
1872 }
1873*/
1874
1875 // GameShark CDX CD Player: Irq timing mania
1876 if( rt == 0 &&
1877 cdr.Irq != 0 && cdr.Irq != 0xff &&
1878 cdr.ResultReady == 0 ) {
1879
1880 // GS CDX: ~0x28 cycle timing - way too precise
1881 if( cdr.Irq == CdlGetlocP ) {
1882 cdrInterrupt();
1883
1884 psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1885 }
1886 }
1887
1888
1889 if (rt == 0x07 && cdr.Ctrl & 0x1) {
ef79bbde
P		 1890 cdr.Stat = 0;
1891
1892 if (cdr.Irq == 0xff) {
1893 cdr.Irq = 0;
1894 return;
1895 }
9f8b032d 1896
1897 if (cdr.Reading && !cdr.ResultReady) {
1898 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1899 }
ef79bbde
P		 1900
1901 return;
1902 }
9f8b032d 1903
ef79bbde
P		 1904 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1905 cdr.Readed = 1;
1906 cdr.pTransfer = cdr.Transfer;
1907
1908 switch (cdr.Mode & 0x30) {
9f8b032d 1909 case MODE_SIZE_2328:
ef79bbde
P		 1910 case 0x00:
1911 cdr.pTransfer += 12;
1912 break;
9f8b032d 1913
1914 case MODE_SIZE_2340:
1915 cdr.pTransfer += 0;
1916 break;
1917
ef79bbde
P		 1918 default:
1919 break;
1920 }
1921 }
1922}
1923
1924void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1925 u32 cdsize;
1926 u8 *ptr;
1927
1928#ifdef CDR_LOG
1929 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1930#endif
1931
1932 switch (chcr) {
1933 case 0x11000000:
1934 case 0x11400100:
1935 if (cdr.Readed == 0) {
1936#ifdef CDR_LOG
1937 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1938#endif
1939 break;
1940 }
1941
1942 cdsize = (bcr & 0xffff) * 4;
1943
9f8b032d 1944 // Ape Escape: bcr = 0001 / 0000
1945 // - fix boot
1946 if( cdsize == 0 )
1947 {
1948 switch (cdr.Mode & 0x30) {
1949 case 0x00: cdsize = 2048; break;
1950 case MODE_SIZE_2328: cdsize = 2328; break;
1951 case MODE_SIZE_2340: cdsize = 2340; break;
1952 }
1953 }
1954
1955
ef79bbde
P		 1956 ptr = (u8 *)PSXM(madr);
1957 if (ptr == NULL) {
1958#ifdef CPU_LOG
1959 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1960#endif
1961 break;
1962 }
9f8b032d 1963
1964 /*
1965 GS CDX: Enhancement CD crash
1966 - Setloc 0:0:0
1967 - CdlPlay
1968 - Spams DMA3 and gets buffer overrun
1969 */
1970
1971 if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
1972 {
1973 // avoid crash - probably should wrap here
1974 //memcpy(ptr, cdr.pTransfer, cdsize);
1975 }
1976 else
1977 {
1978 memcpy(ptr, cdr.pTransfer, cdsize);
1979 }
1980
ef79bbde
P		 1981 psxCpu->Clear(madr, cdsize / 4);
1982 cdr.pTransfer += cdsize;
9f8b032d 1983
1984
1985 // burst vs normal
1986 if( chcr == 0x11400100 ) {
1987 CDRDMA_INT( (cdsize/4) / 4 );
1988 }
1989 else if( chcr == 0x11000000 ) {
1990 CDRDMA_INT( (cdsize/4) * 1 );
1991 }
1992 return;
1993
ef79bbde
P		 1994 default:
1995#ifdef CDR_LOG
1996 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1997#endif
1998 break;
1999 }
2000
2001 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2002 DMA_INTERRUPT(3);
2003}
2004
9f8b032d 2005void cdrDmaInterrupt()
2006{
2007 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2008 DMA_INTERRUPT(3);
2009}
2010
ef79bbde
P		 2011void cdrReset() {
2012 memset(&cdr, 0, sizeof(cdr));
2013 cdr.CurTrack = 1;
2014 cdr.File = 1;
2015 cdr.Channel = 1;
2016}
2017
2018int cdrFreeze(gzFile f, int Mode) {
2019 uintptr_t tmp;
2020
ef79bbde 2021
9f8b032d 2022 if( Mode == 0 ) {
2023 StopCdda();
2024 }
2025
2026 gzfreeze(&cdr, sizeof(cdr));
2027
ef79bbde
P		 2028 if (Mode == 1)
2029 tmp = cdr.pTransfer - cdr.Transfer;
2030
2031 gzfreeze(&tmp, sizeof(tmp));
2032
2033 if (Mode == 0)
2034 cdr.pTransfer = cdr.Transfer + tmp;
2035
2036 return 0;
2037}
9f8b032d 2038
2039void LidInterrupt() {
2040 cdr.LidCheck = 0x20; // start checker
2041
2042 CDRLID_INT( cdReadTime * 3 );
2043
2044 // generate interrupt if none active - open or close
2045 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2046 cdr.Ctrl |= 0x80;
2047 cdr.Stat = NoIntr;
2048 AddIrqQueue(CdlNop, 0x800);
2049 }
2050}
ARM optimized PCSX fork