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drc: invalidate RAM mirrors correctly
[pcsx_rearmed.git] / libpcsxcore / cdrom.c
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ef79bbde
P		 1/***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
18 ***************************************************************************/
19
20/*
21* Handles all CD-ROM registers and functions.
22*/
23
24#include "cdrom.h"
25#include "ppf.h"
9f8b032d 26#include "psxdma.h"
ef79bbde
P		 27
28cdrStruct cdr;
29
30/* CD-ROM magic numbers */
31#define CdlSync 0
32#define CdlNop 1
33#define CdlSetloc 2
34#define CdlPlay 3
35#define CdlForward 4
36#define CdlBackward 5
37#define CdlReadN 6
38#define CdlStandby 7
39#define CdlStop 8
40#define CdlPause 9
41#define CdlInit 10
42#define CdlMute 11
43#define CdlDemute 12
44#define CdlSetfilter 13
45#define CdlSetmode 14
46#define CdlGetmode 15
47#define CdlGetlocL 16
48#define CdlGetlocP 17
49#define CdlReadT 18
50#define CdlGetTN 19
51#define CdlGetTD 20
52#define CdlSeekL 21
53#define CdlSeekP 22
54#define CdlSetclock 23
55#define CdlGetclock 24
56#define CdlTest 25
57#define CdlID 26
58#define CdlReadS 27
59#define CdlReset 28
60#define CdlReadToc 30
61
62#define AUTOPAUSE 249
63#define READ_ACK 250
64#define READ 251
65#define REPPLAY_ACK 252
66#define REPPLAY 253
67#define ASYNC 254
68/* don't set 255, it's reserved */
69
70char *CmdName[0x100]= {
71 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
72 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
73 "CdlStop", "CdlPause", "CdlInit", "CdlMute",
74 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
75 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
76 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
77 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
78 "CdlReset", NULL, "CDlReadToc", NULL
79};
80
81unsigned char Test04[] = { 0 };
82unsigned char Test05[] = { 0 };
83unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
84unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
85unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
86
9f8b032d 87// cdr.Stat:
88#define NoIntr 0
89#define DataReady 1
90#define Complete 2
91#define Acknowledge 3
92#define DataEnd 4
93#define DiskError 5
94
95/* Modes flags */
96#define MODE_SPEED (1<<7) // 0x80
97#define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
98#define MODE_SIZE_2340 (1<<5) // 0x20
99#define MODE_SIZE_2328 (1<<4) // 0x10
100#define MODE_SF (1<<3) // 0x08 channel on/off
101#define MODE_REPORT (1<<2) // 0x04
102#define MODE_AUTOPAUSE (1<<1) // 0x02
103#define MODE_CDDA (1<<0) // 0x01
104
105/* Status flags */
106#define STATUS_PLAY (1<<7) // 0x80
107#define STATUS_SEEK (1<<6) // 0x40
108#define STATUS_READ (1<<5) // 0x20
109#define STATUS_SHELLOPEN (1<<4) // 0x10
110#define STATUS_UNKNOWN3 (1<<3) // 0x08
111#define STATUS_UNKNOWN2 (1<<2) // 0x04
112#define STATUS_ROTATING (1<<1) // 0x02
113#define STATUS_ERROR (1<<0) // 0x01
114
115
116
ef79bbde
P		 117// 1x = 75 sectors per second
118// PSXCLK = 1 sec in the ps
119// so (PSXCLK / 75) = cdr read time (linuzappz)
120#define cdReadTime (PSXCLK / 75)
121
122static struct CdrStat stat;
123static struct SubQ *subq;
124
9f8b032d 125static unsigned int msf2sec(char *msf) {
126 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
127}
128
129static void sec2msf(unsigned int s, char *msf) {
130 msf[0] = s / 75 / 60;
131 s = s - msf[0] * 75 * 60;
132 msf[1] = s / 75;
133 s = s - msf[1] * 75;
134 msf[2] = s;
135}
136
137
ef79bbde 138#define CDR_INT(eCycle) { \
d28b54b1 139 psxRegs.interrupt |= (1 << PSXINT_CDR); \
140 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
141 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
142 new_dyna_set_event(PSXINT_CDR, eCycle); \
ae602c19 143}
ef79bbde
P		 144
145#define CDREAD_INT(eCycle) { \
d28b54b1 146 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
147 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
148 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
149 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
ae602c19 150}
ef79bbde 151
9f8b032d 152#define CDRLID_INT(eCycle) { \
153 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
154 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
155 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
156 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
157}
158
ef79bbde
P		 159#define StartReading(type, eCycle) { \
160 cdr.Reading = type; \
161 cdr.FirstSector = 1; \
162 cdr.Readed = 0xff; \
163 AddIrqQueue(READ_ACK, eCycle); \
164}
165
166#define StopReading() { \
167 if (cdr.Reading) { \
168 cdr.Reading = 0; \
d28b54b1 169 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
ef79bbde 170 } \
9f8b032d 171 cdr.StatP &= ~STATUS_READ;\
ef79bbde
P		 172}
173
174#define StopCdda() { \
175 if (cdr.Play) { \
176 if (!Config.Cdda) CDR_stop(); \
9f8b032d 177 cdr.StatP &= ~STATUS_PLAY; \
ef79bbde 178 cdr.Play = FALSE; \
9f8b032d 179 cdr.FastForward = 0; \
180 cdr.FastBackward = 0; \
181 /*SPU_registerCallback( SPUirq );*/ \
ef79bbde
P		 182 } \
183}
184
185#define SetResultSize(size) { \
186 cdr.ResultP = 0; \
187 cdr.ResultC = size; \
188 cdr.ResultReady = 1; \
189}
190
9f8b032d 191
192void cdrLidSeekInterrupt()
193{
194 // turn back on checking
195 if( cdr.LidCheck == 0x10 )
196 {
197 cdr.LidCheck = 0;
198 }
199
200 // official lid close
201 else if( cdr.LidCheck == 0x30 )
202 {
203 // GS CDX 3.3: $13
204 cdr.StatP |= STATUS_ROTATING;
205
206
207 // GS CDX 3.3 - ~50 getlocp tries
208 CDRLID_INT( cdReadTime * 3 );
209 cdr.LidCheck = 0x40;
210 }
211
212 // turn off ready
213 else if( cdr.LidCheck == 0x40 )
214 {
215 // GS CDX 3.3: $01
216 cdr.StatP &= ~STATUS_SHELLOPEN;
217 cdr.StatP &= ~STATUS_ROTATING;
218
219
220 // GS CDX 3.3 - ~50 getlocp tries
221 CDRLID_INT( cdReadTime * 3 );
222 cdr.LidCheck = 0x50;
223 }
224
225 // now seek
226 else if( cdr.LidCheck == 0x50 )
227 {
228 // GameShark Lite: Start seeking ($42)
229 cdr.StatP |= STATUS_SEEK;
230 cdr.StatP |= STATUS_ROTATING;
231 cdr.StatP &= ~STATUS_ERROR;
232
233
234 CDRLID_INT( cdReadTime * 3 );
235 cdr.LidCheck = 0x60;
236 }
237
238 // done = cd ready
239 else if( cdr.LidCheck == 0x60 )
240 {
241 // GameShark Lite: Seek detection done ($02)
242 cdr.StatP &= ~STATUS_SEEK;
243
244 cdr.LidCheck = 0;
245 }
246}
247
248
249static void Check_Shell( int Irq )
250{
251 // check case open/close
252 if (cdr.LidCheck > 0)
253 {
254#ifdef CDR_LOG
255 CDR_LOG( "LidCheck\n" );
256#endif
257
258 // $20 = check lid state
259 if( cdr.LidCheck == 0x20 )
260 {
261 u32 i;
262
263 i = stat.Status;
264 if (CDR_getStatus(&stat) != -1)
265 {
266 if (stat.Type == 0xff)
267 cdr.Stat = DiskError;
268
269 // case now open
270 else if (stat.Status & STATUS_SHELLOPEN)
271 {
272 // Vib Ribbon: pre-CD swap
273 StopCdda();
274
275
276 // GameShark Lite: Death if DiskError happens
277 //
278 // Vib Ribbon: Needs DiskError for CD swap
279
280 if (Irq != CdlNop)
281 {
282 cdr.Stat = DiskError;
283
284 cdr.StatP |= STATUS_ERROR;
285 cdr.Result[0] |= STATUS_ERROR;
286 }
287
288 // GameShark Lite: Wants -exactly- $10
289 cdr.StatP |= STATUS_SHELLOPEN;
290 cdr.StatP &= ~STATUS_ROTATING;
291
292
293 CDRLID_INT( cdReadTime * 3 );
294 cdr.LidCheck = 0x10;
295
296
297 // GS CDX 3.3 = $11
298 }
299
300 // case just closed
301 else if ( i & STATUS_SHELLOPEN )
302 {
303 cdr.StatP |= STATUS_ROTATING;
304
305 CheckCdrom();
306
307
308 if( cdr.Stat == NoIntr )
309 cdr.Stat = Acknowledge;
310
311 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
312
313
314 // begin close-seek-ready cycle
315 CDRLID_INT( cdReadTime * 3 );
316 cdr.LidCheck = 0x30;
317
318
319 // GameShark Lite: Wants -exactly- $42, then $02
320 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
321 }
322
323 // case still closed - wait for recheck
324 else
325 {
326 CDRLID_INT( cdReadTime * 3 );
327 cdr.LidCheck = 0x10;
328 }
329 }
330 }
331
332
333 // GS CDX: clear all values but #1,#2
334 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
335 {
336 SetResultSize(16);
337 memset( cdr.Result, 0, 16 );
338
339 cdr.Result[0] = cdr.StatP;
340
341
342 // GS CDX: special return value
343 if( cdr.StatP & STATUS_SHELLOPEN )
344 {
345 cdr.Result[1] = 0x80;
346 }
347
348
349 if( cdr.Stat == NoIntr )
350 cdr.Stat = Acknowledge;
351
352 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
353 }
354 }
355}
356
357
358void Find_CurTrack() {
359 cdr.CurTrack = 0;
360
361 if (CDR_getTN(cdr.ResultTN) != -1) {
362 int lcv;
363
364 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
365 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
366 u32 sect1, sect2;
367
368#ifdef CDR_LOG___0
369 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
370 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
371 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
372 cdr.CurTrack );
373#endif
374
375 // find next track boundary - only need m:s accuracy
376 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
377 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
378
379 // Twisted Metal 4 - psx cdda pregap (2-sec)
380 // - fix in-game music
381 sect2 -= 75 * 2;
382
383 if( sect1 >= sect2 ) {
384 cdr.CurTrack++;
385 continue;
386 }
387 }
388
389 break;
390 }
391 }
392}
393
394static void ReadTrack( u8 *time ) {
395 cdr.Prev[0] = itob( time[0] );
396 cdr.Prev[1] = itob( time[1] );
397 cdr.Prev[2] = itob( time[2] );
ef79bbde
P		 398
399#ifdef CDR_LOG
400 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
401#endif
402 cdr.RErr = CDR_readTrack(cdr.Prev);
403}
404
ef79bbde
P		 405
406void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
407 cdr.Irq = irq;
9f8b032d 408 cdr.eCycle = ecycle;
409
410 // Doom: Force rescheduling
411 // - Fixes boot
412 CDR_INT(ecycle);
413}
414
415
416void Set_Track()
417{
418 if (CDR_getTN(cdr.ResultTN) != -1) {
419 int lcv;
420
421 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
422 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
423#ifdef CDR_LOG___0
424 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
425 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
426 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
427 cdr.CurTrack );
428#endif
429
430 // check if time matches track start (only need min, sec accuracy)
431 // - m:s:f vs f:s:m
432 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
433 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
434 // skip pregap frames
435 if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
436 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
437
438 break;
439 }
440 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
441 break;
442 }
443 }
444 }
445}
446
447
448static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
449void Create_Fake_Subq()
450{
451 u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
452 int diff;
453
454 if (CDR_getTN(cdr.ResultTN) == -1) return;
455 if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
456 pregap = 150;
457 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
458 } else {
459 // last track - cd size
460 pregap = 0;
461 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
462 }
463
464 if( cdr.Play == TRUE ) {
465 temp_cur[0] = cdr.SetSectorPlay[0];
466 temp_cur[1] = cdr.SetSectorPlay[1];
467 temp_cur[2] = cdr.SetSectorPlay[2];
468 } else {
469 temp_cur[0] = btoi( cdr.Prev[0] );
470 temp_cur[1] = btoi( cdr.Prev[1] );
471 temp_cur[2] = btoi( cdr.Prev[2] );
472 }
473
474 fake_subq_real[0] = temp_cur[0];
475 fake_subq_real[1] = temp_cur[1];
476 fake_subq_real[2] = temp_cur[2];
477
478 temp_next[0] = cdr.ResultTD[2];
479 temp_next[1] = cdr.ResultTD[1];
480 temp_next[2] = cdr.ResultTD[0];
481
482
483 // flag- next track
484 if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
485 fake_subq_change = 1;
486
487 cdr.CurTrack++;
488
489 // end cd
490 if( pregap == 0 ) StopCdda();
491 }
492
493 //////////////////////////////////////////////////
494 //////////////////////////////////////////////////
495
496 // repair
497 if( cdr.CurTrack <= cdr.ResultTN[1] ) {
498 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
499 } else {
500 // last track - cd size
501 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
502 }
503
504 temp_start[0] = cdr.ResultTD[2];
505 temp_start[1] = cdr.ResultTD[1];
506 temp_start[2] = cdr.ResultTD[0];
507
508
509#ifdef CDR_LOG
510 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
511 temp_cur[0], temp_cur[1], temp_cur[2],
512 temp_start[0], temp_start[1], temp_start[2],
513 temp_next[0], temp_next[1], temp_next[2]);
514#endif
515
516
517
518 // local time - pregap / real
519 diff = msf2sec(temp_cur) - msf2sec( temp_start );
520 if( diff < 0 ) {
521 fake_subq_index = 0;
522
523 sec2msf( -diff, fake_subq_local );
ef79bbde 524 } else {
9f8b032d 525 fake_subq_index = 1;
526
527 sec2msf( diff, fake_subq_local );
ef79bbde
P		 528 }
529}
530
9f8b032d 531
ef79bbde
P		 532void cdrInterrupt() {
533 int i;
534 unsigned char Irq = cdr.Irq;
535
9f8b032d 536 // Reschedule IRQ
ef79bbde 537 if (cdr.Stat) {
9f8b032d 538 CDR_INT( 0x100 );
ef79bbde
P		 539 return;
540 }
541
542 cdr.Irq = 0xff;
543 cdr.Ctrl &= ~0x80;
544
545 switch (Irq) {
546 case CdlSync:
547 SetResultSize(1);
9f8b032d 548 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 549 cdr.Result[0] = cdr.StatP;
550 cdr.Stat = Acknowledge;
551 break;
552
553 case CdlNop:
554 SetResultSize(1);
555 cdr.Result[0] = cdr.StatP;
556 cdr.Stat = Acknowledge;
9f8b032d 557
558 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 559 break;
560
561 case CdlSetloc:
562 cdr.CmdProcess = 0;
563 SetResultSize(1);
9f8b032d 564 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 565 cdr.Result[0] = cdr.StatP;
566 cdr.Stat = Acknowledge;
567 break;
568
569 case CdlPlay:
9f8b032d 570 fake_subq_change = 0;
571
572 if( cdr.Seeked == FALSE ) {
573 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
574 cdr.Seeked = TRUE;
575 }
576
577 /*
578 Rayman: detect track changes
579 - fixes logo freeze
580
581 Twisted Metal 2: skip PREGAP + starting accurate SubQ
582 - plays tracks without retry play
583
584 Wild 9: skip PREGAP + starting accurate SubQ
585 - plays tracks without retry play
586 */
587 Set_Track();
588 Find_CurTrack();
589 ReadTrack( cdr.SetSectorPlay );
590
591
592 // GameShark CD Player: Calls 2x + Play 2x
593 if( cdr.FastBackward || cdr.FastForward ) {
594 if( cdr.FastForward ) cdr.FastForward--;
595 if( cdr.FastBackward ) cdr.FastBackward--;
596
597 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
598 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
599 cdr.SetSectorPlay[0] = stat.Time[0];
600 cdr.SetSectorPlay[1] = stat.Time[1];
601 cdr.SetSectorPlay[2] = stat.Time[2];
602 }
603 }
604 }
605
606
607 if (!Config.Cdda) {
608 // BIOS CD Player
609 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
610
611 // GameShark CD Player: Resume play
612 if( cdr.ParamC == 0 ) {
613#ifdef CDR_LOG___0
614 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
615 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
616#endif
617
618 //CDR_play( cdr.SetSectorPlay );
619 }
620 else
621 {
622 // BIOS CD Player: Resume play
623 if( cdr.Param[0] == 0 ) {
624#ifdef CDR_LOG___0
625 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
626 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
627#endif
628
629 //CDR_play( cdr.SetSectorPlay );
630 }
631 else {
632#ifdef CDR_LOG___0
633 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
634 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
635#endif
636
637 // BIOS CD Player: Allow track replaying
638 StopCdda();
639
640
641 cdr.CurTrack = btoi( cdr.Param[0] );
642
643 if (CDR_getTN(cdr.ResultTN) != -1) {
644 // check last track
645 if (cdr.CurTrack > cdr.ResultTN[1])
646 cdr.CurTrack = cdr.ResultTN[1];
647
648 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
649 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
650 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
651 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
652
653 // reset data
654 Set_Track();
655 Find_CurTrack();
656 ReadTrack( cdr.SetSectorPlay );
657
658 //CDR_play(cdr.SetSectorPlay);
659 }
660 }
661 }
662 }
663 }
664
665
666 // Vib Ribbon: gameplay checks flag
667 cdr.StatP &= ~STATUS_SEEK;
668
669
ef79bbde
P		 670 cdr.CmdProcess = 0;
671 SetResultSize(1);
9f8b032d 672 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 673 cdr.Result[0] = cdr.StatP;
674 cdr.Stat = Acknowledge;
9f8b032d 675
676 cdr.StatP |= STATUS_PLAY;
677
678
679 // BIOS player - set flag again
680 cdr.Play = TRUE;
681
682 // TODO?
683 // CDRPLAY_INT( cdReadTime );
ef79bbde
P		 684 break;
685
9f8b032d 686 case CdlForward:
ef79bbde
P		 687 cdr.CmdProcess = 0;
688 SetResultSize(1);
9f8b032d 689 cdr.StatP |= STATUS_ROTATING;
690 cdr.Result[0] = cdr.StatP;
691 cdr.Stat = Complete;
692
693
694 // GameShark CD Player: Calls 2x + Play 2x
695 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
696 else cdr.FastForward++;
697
698 cdr.FastBackward = 0;
ef79bbde
P		 699 break;
700
9f8b032d 701 case CdlBackward:
ef79bbde
P		 702 cdr.CmdProcess = 0;
703 SetResultSize(1);
9f8b032d 704 cdr.StatP |= STATUS_ROTATING;
705 cdr.Result[0] = cdr.StatP;
706 cdr.Stat = Complete;
707
708
709 // GameShark CD Player: Calls 2x + Play 2x
710 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
711 else cdr.FastBackward++;
712
713 cdr.FastForward = 0;
ef79bbde
P		 714 break;
715
9f8b032d 716 case CdlStandby:
ef79bbde
P		 717 cdr.CmdProcess = 0;
718 SetResultSize(1);
9f8b032d 719 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 720 cdr.Result[0] = cdr.StatP;
721 cdr.Stat = Complete;
722 break;
723
724 case CdlStop:
725 cdr.CmdProcess = 0;
726 SetResultSize(1);
9f8b032d 727 cdr.StatP &= ~STATUS_ROTATING;
ef79bbde
P		 728 cdr.Result[0] = cdr.StatP;
729 cdr.Stat = Complete;
730// cdr.Stat = Acknowledge;
731
9f8b032d 732 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
ef79bbde
P		 733 break;
734
735 case CdlPause:
736 SetResultSize(1);
737 cdr.Result[0] = cdr.StatP;
9f8b032d 738 cdr.Stat = Acknowledge;
739
740 AddIrqQueue(CdlPause + 0x20, 0x800);
ef79bbde
P		 741 cdr.Ctrl |= 0x80;
742 break;
743
744 case CdlPause + 0x20:
745 SetResultSize(1);
9f8b032d 746 cdr.StatP &= ~STATUS_READ;
747 cdr.StatP |= STATUS_ROTATING;
ef79bbde 748 cdr.Result[0] = cdr.StatP;
9f8b032d 749 cdr.Stat = Complete;
ef79bbde
P		 750 break;
751
9f8b032d 752 case CdlInit:
ef79bbde 753 SetResultSize(1);
9f8b032d 754 cdr.StatP = STATUS_ROTATING;
ef79bbde 755 cdr.Result[0] = cdr.StatP;
9f8b032d 756 cdr.Stat = Acknowledge;
ef79bbde 757// if (!cdr.Init) {
9f8b032d 758 AddIrqQueue(CdlInit + 0x20, 0x800);
ef79bbde
P		 759// }
760 break;
761
762 case CdlInit + 0x20:
763 SetResultSize(1);
764 cdr.Result[0] = cdr.StatP;
9f8b032d 765 cdr.Stat = Complete;
ef79bbde
P		 766 cdr.Init = 1;
767 break;
768
9f8b032d 769 case CdlMute:
ef79bbde 770 SetResultSize(1);
9f8b032d 771 cdr.StatP |= STATUS_ROTATING;
772 cdr.Result[0] = cdr.StatP;
773 cdr.Stat = Acknowledge;
ef79bbde
P		 774 break;
775
9f8b032d 776 case CdlDemute:
ef79bbde 777 SetResultSize(1);
9f8b032d 778 cdr.StatP |= STATUS_ROTATING;
779 cdr.Result[0] = cdr.StatP;
780 cdr.Stat = Acknowledge;
ef79bbde
P		 781 break;
782
9f8b032d 783 case CdlSetfilter:
ef79bbde 784 SetResultSize(1);
9f8b032d 785 cdr.StatP |= STATUS_ROTATING;
786 cdr.Result[0] = cdr.StatP;
787 cdr.Stat = Acknowledge;
788 break;
ef79bbde
P		 789
790 case CdlSetmode:
791 SetResultSize(1);
9f8b032d 792 cdr.StatP |= STATUS_ROTATING;
793 cdr.Result[0] = cdr.StatP;
794 cdr.Stat = Acknowledge;
795 break;
ef79bbde 796
9f8b032d 797 case CdlGetmode:
ef79bbde 798 SetResultSize(6);
9f8b032d 799 cdr.StatP |= STATUS_ROTATING;
800 cdr.Result[0] = cdr.StatP;
801 cdr.Result[1] = cdr.Mode;
802 cdr.Result[2] = cdr.File;
803 cdr.Result[3] = cdr.Channel;
804 cdr.Result[4] = 0;
805 cdr.Result[5] = 0;
806 cdr.Stat = Acknowledge;
807 break;
ef79bbde 808
9f8b032d 809 case CdlGetlocL:
ef79bbde 810 SetResultSize(8);
9f8b032d 811 for (i = 0; i < 8; i++)
ef79bbde 812 cdr.Result[i] = cdr.Transfer[i];
9f8b032d 813 cdr.Stat = Acknowledge;
814 break;
ef79bbde
P		 815
816 case CdlGetlocP:
9f8b032d 817 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
818 SetResultSize(17);
819 memset( cdr.Result, 0, 16 );
820
ef79bbde
P		 821 subq = (struct SubQ *)CDR_getBufferSub();
822
823 if (subq != NULL) {
824 cdr.Result[0] = subq->TrackNumber;
825 cdr.Result[1] = subq->IndexNumber;
826 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
827 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
828
9f8b032d 829
830 // subQ integrity check - data only (skip audio)
831 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
ef79bbde
P		 832 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
833 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
834 }
9f8b032d 835 }
ef79bbde 836 } else {
9f8b032d 837 if( cdr.Play == FALSE ) Create_Fake_Subq();
ef79bbde 838
ef79bbde 839
9f8b032d 840 // track # / index #
841 cdr.Result[0] = itob(cdr.CurTrack);
842 cdr.Result[1] = itob(fake_subq_index);
ef79bbde 843
9f8b032d 844 // local
845 cdr.Result[2] = itob( fake_subq_local[0] );
846 cdr.Result[3] = itob( fake_subq_local[1] );
847 cdr.Result[4] = itob( fake_subq_local[2] );
ef79bbde 848
9f8b032d 849 // absolute
850 cdr.Result[5] = itob( fake_subq_real[0] );
851 cdr.Result[6] = itob( fake_subq_real[1] );
852 cdr.Result[7] = itob( fake_subq_real[2] );
ef79bbde
P		 853 }
854
9f8b032d 855 // redump.org - wipe time
856 /*if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
857 memset( cdr.Result+2, 0, 6 );
858 }
859 */
860
ef79bbde
P		 861 cdr.Stat = Acknowledge;
862 break;
863
9f8b032d 864 case CdlGetTN:
865 // 5-Star Racing: don't stop CDDA
866 //
867 // Vib Ribbon: CD swap
868 StopReading();
869
ef79bbde
P		 870 cdr.CmdProcess = 0;
871 SetResultSize(3);
9f8b032d 872 cdr.StatP |= STATUS_ROTATING;
873 cdr.Result[0] = cdr.StatP;
874 if (CDR_getTN(cdr.ResultTN) == -1) {
ef79bbde 875 cdr.Stat = DiskError;
9f8b032d 876 cdr.Result[0] |= STATUS_ERROR;
877 } else {
878 cdr.Stat = Acknowledge;
879 cdr.Result[1] = itob(cdr.ResultTN[0]);
880 cdr.Result[2] = itob(cdr.ResultTN[1]);
881 }
882 break;
ef79bbde 883
9f8b032d 884 case CdlGetTD:
ef79bbde
P		 885 cdr.CmdProcess = 0;
886 cdr.Track = btoi(cdr.Param[0]);
887 SetResultSize(4);
9f8b032d 888 cdr.StatP |= STATUS_ROTATING;
ef79bbde
P		 889 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
890 cdr.Stat = DiskError;
9f8b032d 891 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 892 } else {
893 cdr.Stat = Acknowledge;
894 cdr.Result[0] = cdr.StatP;
895 cdr.Result[1] = itob(cdr.ResultTD[2]);
896 cdr.Result[2] = itob(cdr.ResultTD[1]);
897 cdr.Result[3] = itob(cdr.ResultTD[0]);
898 }
899 break;
900
9f8b032d 901 case CdlSeekL:
ef79bbde 902 SetResultSize(1);
9f8b032d 903 cdr.StatP |= STATUS_ROTATING;
904 cdr.Result[0] = cdr.StatP;
905 cdr.StatP |= STATUS_SEEK;
906 cdr.Stat = Acknowledge;
907
908 /*
909 Crusaders of Might and Magic = 0.5x-4x
910 - fix cutscene speech start
911
912 Eggs of Steel = 2x-?
913 - fix new game
914
915 Medievil = ?-4x
916 - fix cutscene speech
917
918 Rockman X5 = 0.5-4x
919 - fix capcom logo
920 */
921 AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
ef79bbde
P		 922 break;
923
9f8b032d 924 case CdlSeekL + 0x20:
ef79bbde 925 SetResultSize(1);
9f8b032d 926 cdr.StatP |= STATUS_ROTATING;
927 cdr.StatP &= ~STATUS_SEEK;
928 cdr.Result[0] = cdr.StatP;
929 cdr.Seeked = TRUE;
930 cdr.Stat = Complete;
931
932
933 // Mega Man Legends 2: must update read cursor for getlocp
934 ReadTrack( cdr.SetSector );
ef79bbde
P		 935 break;
936
9f8b032d 937 case CdlSeekP:
ef79bbde 938 SetResultSize(1);
9f8b032d 939 cdr.StatP |= STATUS_ROTATING;
940 cdr.Result[0] = cdr.StatP;
941 cdr.StatP |= STATUS_SEEK;
942 cdr.Stat = Acknowledge;
943 AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
ef79bbde
P		 944 break;
945
9f8b032d 946 case CdlSeekP + 0x20:
ef79bbde 947 SetResultSize(1);
9f8b032d 948 cdr.StatP |= STATUS_ROTATING;
949 cdr.StatP &= ~STATUS_SEEK;
950 cdr.Result[0] = cdr.StatP;
951 cdr.Stat = Complete;
952 cdr.Seeked = TRUE;
953
954 // GameShark Music Player
955 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
956
957 // Tomb Raider 2: must update read cursor for getlocp
958 Find_CurTrack();
959 ReadTrack( cdr.SetSectorPlay );
ef79bbde
P		 960 break;
961
962 case CdlTest:
9f8b032d 963 cdr.Stat = Acknowledge;
964 switch (cdr.Param[0]) {
965 case 0x20: // System Controller ROM Version
ef79bbde
P		 966 SetResultSize(4);
967 memcpy(cdr.Result, Test20, 4);
968 break;
969 case 0x22:
970 SetResultSize(8);
971 memcpy(cdr.Result, Test22, 4);
972 break;
973 case 0x23: case 0x24:
974 SetResultSize(8);
975 memcpy(cdr.Result, Test23, 4);
976 break;
9f8b032d 977 }
ef79bbde
P		 978 break;
979
9f8b032d 980 case CdlID:
ef79bbde 981 SetResultSize(1);
9f8b032d 982 cdr.StatP |= STATUS_ROTATING;
983 cdr.Result[0] = cdr.StatP;
984 cdr.Stat = Acknowledge;
985 AddIrqQueue(CdlID + 0x20, 0x800);
ef79bbde
P		 986 break;
987
988 case CdlID + 0x20:
989 SetResultSize(8);
9f8b032d 990
991 if (CDR_getStatus(&stat) == -1) {
992 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
993 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
994 }
995 else {
996 if (stat.Type == 2) {
997 // Music CD
998 cdr.Result[0] = 0x08;
999 cdr.Result[1] = 0x10;
1000
1001 cdr.Result[1] |= 0x80;
1002 }
1003 else {
1004 // Data CD
1005 if (CdromId[0] == '\0') {
1006 cdr.Result[0] = 0x00;
1007 cdr.Result[1] = 0x80;
1008 }
1009 else {
1010 cdr.Result[0] = 0x08;
1011 cdr.Result[1] = 0x00;
1012 }
1013 }
1014 }
1015
ef79bbde
P		 1016 cdr.Result[2] = 0x00;
1017 cdr.Result[3] = 0x00;
1018 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1019 cdr.Stat = Complete;
1020 break;
1021
1022 case CdlReset:
1023 SetResultSize(1);
9f8b032d 1024 cdr.StatP = STATUS_ROTATING;
ef79bbde 1025 cdr.Result[0] = cdr.StatP;
9f8b032d 1026 cdr.Stat = Acknowledge;
ef79bbde
P		 1027 break;
1028
9f8b032d 1029 case CdlReadT:
1030 SetResultSize(1);
1031 cdr.StatP |= STATUS_ROTATING;
1032 cdr.Result[0] = cdr.StatP;
1033 cdr.Stat = Acknowledge;
1034 AddIrqQueue(CdlReadT + 0x20, 0x800);
1035 break;
1036
1037 case CdlReadT + 0x20:
1038 SetResultSize(1);
1039 cdr.StatP |= STATUS_ROTATING;
1040 cdr.Result[0] = cdr.StatP;
1041 cdr.Stat = Complete;
1042 break;
1043
1044 case CdlReadToc:
ef79bbde 1045 SetResultSize(1);
9f8b032d 1046 cdr.StatP |= STATUS_ROTATING;
1047 cdr.Result[0] = cdr.StatP;
1048 cdr.Stat = Acknowledge;
1049 AddIrqQueue(CdlReadToc + 0x20, 0x800);
ef79bbde
P		 1050 break;
1051
9f8b032d 1052 case CdlReadToc + 0x20:
ef79bbde 1053 SetResultSize(1);
9f8b032d 1054 cdr.StatP |= STATUS_ROTATING;
1055 cdr.Result[0] = cdr.StatP;
1056 cdr.Stat = Complete;
ef79bbde
P		 1057 break;
1058
1059 case AUTOPAUSE:
1060 cdr.OCUP = 0;
1061/* SetResultSize(1);
1062 StopCdda();
1063 StopReading();
1064 cdr.OCUP = 0;
9f8b032d 1065 cdr.StatP&=~0x20;
ef79bbde 1066 cdr.StatP|= 0x2;
9f8b032d 1067 cdr.Result[0] = cdr.StatP;
1068 cdr.Stat = DataEnd;
ef79bbde
P		 1069*/ AddIrqQueue(CdlPause, 0x800);
1070 break;
1071
1072 case READ_ACK:
1073 if (!cdr.Reading) return;
1074
9f8b032d 1075
1076 // Fighting Force 2 - update subq time immediately
1077 // - fixes new game
1078 ReadTrack( cdr.SetSector );
1079
1080
1081 // Crusaders of Might and Magic - update getlocl now
1082 // - fixes cutscene speech
1083 {
1084 u8 *buf = CDR_getBuffer();
1085 memcpy(cdr.Transfer, buf, 8);
1086 }
1087
1088
1089 /*
1090 Duke Nukem: Land of the Babes - seek then delay read for one frame
1091 - fixes cutscenes
1092 */
1093
ef79bbde
P		 1094 if (!cdr.Seeked) {
1095 cdr.Seeked = TRUE;
ef79bbde 1096
9f8b032d 1097 cdr.StatP |= STATUS_SEEK;
1098 cdr.StatP &= ~STATUS_READ;
1099
1100 // Crusaders of Might and Magic - use short time
1101 // - fix cutscene speech (startup)
1102
1103 // ??? - use more accurate seek time later
1104 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1105 } else {
1106 cdr.StatP |= STATUS_READ;
1107 cdr.StatP &= ~STATUS_SEEK;
1108
1109 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1110 }
ef79bbde 1111
ef79bbde 1112 SetResultSize(1);
9f8b032d 1113 cdr.StatP |= STATUS_ROTATING;
1114 cdr.Result[0] = cdr.StatP;
1115 cdr.Stat = Acknowledge;
ef79bbde
P		 1116 break;
1117
ef79bbde
P		 1118 case 0xff:
1119 return;
1120
1121 default:
1122 cdr.Stat = Complete;
1123 break;
1124 }
1125
9f8b032d 1126 Check_Shell( Irq );
1127
ef79bbde
P		 1128 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1129 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1130 }
1131
1132#ifdef CDR_LOG
1133 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1134#endif
1135}
1136
1137void cdrReadInterrupt() {
1138 u8 *buf;
1139
1140 if (!cdr.Reading)
1141 return;
1142
9f8b032d 1143 if (cdr.Irq || cdr.Stat) {
1144 CDREAD_INT(0x100);
ef79bbde
P		 1145 return;
1146 }
1147
1148#ifdef CDR_LOG
1149 CDR_LOG("cdrReadInterrupt() Log: KEY END");
1150#endif
1151
9f8b032d 1152 cdr.OCUP = 1;
ef79bbde 1153 SetResultSize(1);
9f8b032d 1154 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1155 cdr.StatP &= ~STATUS_SEEK;
1156 cdr.Result[0] = cdr.StatP;
ef79bbde 1157
9f8b032d 1158 ReadTrack( cdr.SetSector );
ef79bbde
P		 1159
1160 buf = CDR_getBuffer();
1161 if (buf == NULL)
1162 cdr.RErr = -1;
1163
1164 if (cdr.RErr == -1) {
1165#ifdef CDR_LOG
1166 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1167#endif
1168 memset(cdr.Transfer, 0, DATA_SIZE);
1169 cdr.Stat = DiskError;
9f8b032d 1170 cdr.Result[0] |= STATUS_ERROR;
ef79bbde
P		 1171 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1172 return;
1173 }
1174
1175 memcpy(cdr.Transfer, buf, DATA_SIZE);
1176 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1177
ef79bbde
P		 1178
1179#ifdef CDR_LOG
1180 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1181#endif
1182
9f8b032d 1183 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1184 // Firemen 2: Multi-XA files - briefings, cutscenes
1185 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1186 cdr.File = cdr.Transfer[4 + 0];
1187 cdr.Channel = cdr.Transfer[4 + 1];
1188 }
1189
ef79bbde 1190 if ((cdr.Transfer[4 + 2] & 0x4) &&
9f8b032d 1191 (cdr.Transfer[4 + 1] == cdr.Channel) &&
ef79bbde
P		 1192 (cdr.Transfer[4 + 0] == cdr.File)) {
1193 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1194
1195 if (!ret) {
1196 SPU_playADPCMchannel(&cdr.Xa);
1197 cdr.FirstSector = 0;
9f8b032d 1198
1199
1200 // Crash Team Racing: music, speech
1201
1202 // signal ADPCM data ready
1203 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
ef79bbde
P		 1204 }
1205 else cdr.FirstSector = -1;
1206 }
1207 }
1208
1209 cdr.SetSector[2]++;
9f8b032d 1210 if (cdr.SetSector[2] == 75) {
1211 cdr.SetSector[2] = 0;
1212 cdr.SetSector[1]++;
1213 if (cdr.SetSector[1] == 60) {
1214 cdr.SetSector[1] = 0;
1215 cdr.SetSector[0]++;
1216 }
1217 }
1218
1219 cdr.Readed = 0;
1220
1221 // G-Police: Don't autopause ADPCM even if mode set (music)
1222 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1223 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
ef79bbde
P		 1224#ifdef CDR_LOG
1225 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1226#endif
9f8b032d 1227// AddIrqQueue(AUTOPAUSE, 0x2000);
1228 AddIrqQueue(CdlPause, 0x2000);
ef79bbde
P		 1229 }
1230 else {
9f8b032d 1231 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1232 }
1233
1234 /*
1235 Croc 2: $40 - only FORM1 (*)
1236 Judge Dredd: $C8 - only FORM1 (*)
1237 Sim Theme Park - no adpcm at all (zero)
1238 */
1239
1240 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1241 cdr.Stat = DataReady;
1242 } else {
1243 // Breath of Fire 3 - fix inn sleeping
1244 // Rockman X5 - no music restart problem
1245 cdr.Stat = NoIntr;
ef79bbde
P		 1246 }
1247 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
9f8b032d 1248
1249 Check_Shell(0);
ef79bbde
P		 1250}
1251
1252/*
1253cdrRead0:
1254 bit 0 - 0 REG1 command send / 1 REG1 data read
1255 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1256 bit 2 - unknown
1257 bit 3 - unknown
1258 bit 4 - unknown
1259 bit 5 - 1 result ready
1260 bit 6 - 1 dma ready
1261 bit 7 - 1 command being processed
1262*/
1263
1264unsigned char cdrRead0(void) {
1265 if (cdr.ResultReady)
1266 cdr.Ctrl |= 0x20;
1267 else
1268 cdr.Ctrl &= ~0x20;
1269
1270 if (cdr.OCUP)
1271 cdr.Ctrl |= 0x40;
1272// else
1273// cdr.Ctrl &= ~0x40;
1274
1275 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1276 cdr.Ctrl |= 0x18;
1277
1278#ifdef CDR_LOG
1279 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1280#endif
1281
1282 return psxHu8(0x1800) = cdr.Ctrl;
1283}
1284
1285/*
1286cdrWrite0:
1287 0 - to send a command / 1 - to get the result
1288*/
1289
1290void cdrWrite0(unsigned char rt) {
1291#ifdef CDR_LOG
1292 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1293#endif
1294 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1295
9f8b032d 1296 if (rt == 0) {
ef79bbde
P		 1297 cdr.ParamP = 0;
1298 cdr.ParamC = 0;
1299 cdr.ResultReady = 0;
1300 }
1301}
1302
1303unsigned char cdrRead1(void) {
1304 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
9f8b032d 1305 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1306 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1307 cdr.ResultP++;
ef79bbde
P		 1308 if (cdr.ResultP == cdr.ResultC)
1309 cdr.ResultReady = 0;
1310 } else {
1311 psxHu8(0x1801) = 0;
1312 }
1313#ifdef CDR_LOG
1314 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1315#endif
1316 return psxHu8(0x1801);
1317}
1318
1319void cdrWrite1(unsigned char rt) {
1320 int i;
1321
1322#ifdef CDR_LOG
1323 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1324#endif
9f8b032d 1325
1326
1327 // Tekken: CDXA fade-out
1328 if( (cdr.Ctrl & 3) == 3 ) {
1329 //cdr.AttenuatorRight[0] = rt;
1330 }
1331
1332
ef79bbde 1333// psxHu8(0x1801) = rt;
9f8b032d 1334 cdr.Cmd = rt;
ef79bbde
P		 1335 cdr.OCUP = 0;
1336
1337#ifdef CDRCMD_DEBUG
1338 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1339 if (cdr.ParamC) {
1340 SysPrintf(" Param[%d] = {", cdr.ParamC);
1341 for (i = 0; i < cdr.ParamC; i++)
1342 SysPrintf(" %x,", cdr.Param[i]);
1343 SysPrintf("}\n");
1344 } else {
1345 SysPrintf("\n");
1346 }
1347#endif
1348
1349 if (cdr.Ctrl & 0x1) return;
1350
9f8b032d 1351 switch (cdr.Cmd) {
ef79bbde 1352 case CdlSync:
9f8b032d 1353 cdr.Ctrl |= 0x80;
ef79bbde 1354 cdr.Stat = NoIntr;
9f8b032d 1355 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1356 break;
1357
1358 case CdlNop:
9f8b032d 1359 cdr.Ctrl |= 0x80;
ef79bbde 1360 cdr.Stat = NoIntr;
9f8b032d 1361
1362 // Twisted Metal 3 - fix music
1363 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1364 break;
1365
1366 case CdlSetloc:
9f8b032d 1367 StopReading();
1368 cdr.Seeked = FALSE;
1369 for (i = 0; i < 3; i++)
1370 cdr.SetSector[i] = btoi(cdr.Param[i]);
ef79bbde 1371 cdr.SetSector[3] = 0;
9f8b032d 1372
1373 /*
1374 if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1375 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1376 }*/
1377
1378 cdr.Ctrl |= 0x80;
ef79bbde 1379 cdr.Stat = NoIntr;
9f8b032d 1380 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1381 break;
1382
1383 case CdlPlay:
9f8b032d 1384 // Vib Ribbon: try same track again
1385 StopCdda();
1386
1387 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1388 if (CDR_getTN(cdr.ResultTN) != -1) {
1389 if (cdr.CurTrack > cdr.ResultTN[1])
1390 cdr.CurTrack = cdr.ResultTN[1];
1391 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1392 int tmp = cdr.ResultTD[2];
1393 cdr.ResultTD[2] = cdr.ResultTD[0];
1394 cdr.ResultTD[0] = tmp;
1395 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1396 }
ef79bbde 1397 }
9f8b032d 1398 } else if (!Config.Cdda) {
1399 CDR_play(cdr.SetSector);
1400 }
1401
1402 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1403 // - fixes ribbon timing + music CD mode
1404 //TODO?
1405 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1406
1407
1408 cdr.Play = TRUE;
1409
1410 cdr.StatP |= STATUS_SEEK;
1411 cdr.StatP &= ~STATUS_ROTATING;
1412
1413 cdr.Ctrl |= 0x80;
1414 cdr.Stat = NoIntr;
1415 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1416 break;
1417
1418 case CdlForward:
9f8b032d 1419 //if (cdr.CurTrack < 0xaa)
1420 // cdr.CurTrack++;
1421 cdr.Ctrl |= 0x80;
ef79bbde 1422 cdr.Stat = NoIntr;
9f8b032d 1423 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1424 break;
1425
1426 case CdlBackward:
9f8b032d 1427 //if (cdr.CurTrack > 1)
1428 //cdr.CurTrack--;
1429 cdr.Ctrl |= 0x80;
1430 cdr.Stat = NoIntr;
1431 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1432 break;
1433
1434 case CdlReadN:
9f8b032d 1435 cdr.Irq = 0;
1436 StopReading();
1437 cdr.Ctrl|= 0x80;
1438 cdr.Stat = NoIntr;
1439 StartReading(1, 0x800);
1440 break;
ef79bbde
P		 1441
1442 case CdlStandby:
9f8b032d 1443 StopCdda();
1444 StopReading();
1445 cdr.Ctrl |= 0x80;
1446 cdr.Stat = NoIntr;
1447 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1448 break;
1449
1450 case CdlStop:
9f8b032d 1451 // GameShark CD Player: Reset CDDA to track start
1452 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1453 cdr.SetSectorPlay[0] = stat.Time[0];
1454 cdr.SetSectorPlay[1] = stat.Time[1];
1455 cdr.SetSectorPlay[2] = stat.Time[2];
1456
1457 Find_CurTrack();
1458
1459
1460 // grab time for current track
1461 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1462
1463 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1464 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1465 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1466 }
1467
1468 StopCdda();
1469 StopReading();
1470
1471 cdr.Ctrl |= 0x80;
1472 cdr.Stat = NoIntr;
1473 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1474 break;
1475
1476 case CdlPause:
9f8b032d 1477 /*
1478 GameShark CD Player: save time for resume
1479
1480 Twisted Metal - World Tour: don't save times for DATA reads
1481 - Only get 1 chance to do this right
1482 */
1483 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1484 cdr.SetSectorPlay[0] = stat.Time[0];
1485 cdr.SetSectorPlay[1] = stat.Time[1];
1486 cdr.SetSectorPlay[2] = stat.Time[2];
1487 }
ef79bbde 1488
9f8b032d 1489 StopCdda();
1490 StopReading();
1491 cdr.Ctrl |= 0x80;
1492 cdr.Stat = NoIntr;
1493
1494 /*
1495 Gundam Battle Assault 2: much slower (*)
1496 - Fixes boot, gameplay
1497
1498 Hokuto no Ken 2: slower
1499 - Fixes intro + subtitles
1500
1501 InuYasha - Feudal Fairy Tale: slower
1502 - Fixes battles
1503 */
1504 AddIrqQueue(cdr.Cmd, cdReadTime * 3);
1505 break;
1506
1507 case CdlReset:
ef79bbde 1508 case CdlInit:
9f8b032d 1509 StopCdda();
1510 StopReading();
1511 cdr.Ctrl |= 0x80;
1512 cdr.Stat = NoIntr;
1513 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1514 break;
1515
1516 case CdlMute:
1517 cdr.Muted = TRUE;
9f8b032d 1518 cdr.Ctrl |= 0x80;
ef79bbde 1519 cdr.Stat = NoIntr;
9f8b032d 1520 AddIrqQueue(cdr.Cmd, 0x800);
1521
1522 // Duke Nukem - Time to Kill
1523 // - do not directly set cd-xa volume
1524 //SPU_writeRegister( H_CDLeft, 0x0000 );
1525 //SPU_writeRegister( H_CDRight, 0x0000 );
ef79bbde
P		 1526 break;
1527
1528 case CdlDemute:
1529 cdr.Muted = FALSE;
9f8b032d 1530 cdr.Ctrl |= 0x80;
ef79bbde 1531 cdr.Stat = NoIntr;
9f8b032d 1532 AddIrqQueue(cdr.Cmd, 0x800);
1533
1534 // Duke Nukem - Time to Kill
1535 // - do not directly set cd-xa volume
1536 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1537 //SPU_writeRegister( H_CDRight, 0x7f00 );
ef79bbde
P		 1538 break;
1539
1540 case CdlSetfilter:
1541 cdr.File = cdr.Param[0];
1542 cdr.Channel = cdr.Param[1];
9f8b032d 1543 cdr.Ctrl |= 0x80;
ef79bbde 1544 cdr.Stat = NoIntr;
9f8b032d 1545 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1546 break;
1547
1548 case CdlSetmode:
1549#ifdef CDR_LOG
9f8b032d 1550 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
ef79bbde
P		 1551#endif
1552 cdr.Mode = cdr.Param[0];
9f8b032d 1553 cdr.Ctrl |= 0x80;
ef79bbde 1554 cdr.Stat = NoIntr;
9f8b032d 1555 AddIrqQueue(cdr.Cmd, 0x800);
1556
1557 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1558 // - fixes choppy movie sound
1559 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1560 StopCdda();
ef79bbde
P		 1561 break;
1562
1563 case CdlGetmode:
9f8b032d 1564 cdr.Ctrl |= 0x80;
ef79bbde 1565 cdr.Stat = NoIntr;
9f8b032d 1566 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1567 break;
1568
1569 case CdlGetlocL:
9f8b032d 1570 cdr.Ctrl |= 0x80;
1571 cdr.Stat = NoIntr;
1572
1573 // Crusaders of Might and Magic - cutscene speech
1574 AddIrqQueue(cdr.Cmd, 0x800);
1575 break;
ef79bbde
P		 1576
1577 case CdlGetlocP:
9f8b032d 1578 cdr.Ctrl |= 0x80;
1579 cdr.Stat = NoIntr;
1580
1581 // GameShark CDX / Lite Player: pretty narrow time window
1582 // - doesn't always work due to time inprecision
1583 //AddIrqQueue(cdr.Cmd, 0x28);
1584
1585 // Tomb Raider 2 - cdda
53951880 1586 //AddIrqQueue(cdr.Cmd, 0x40);
1587
1588 // rearmed: the above works in pcsxr-svn, but breaks here
1589 // (TOCA world touring cars), perhaps some other code is not merged yet
1590 AddIrqQueue(cdr.Cmd, 0x1000);
ef79bbde
P		 1591 break;
1592
1593 case CdlGetTN:
9f8b032d 1594 cdr.Ctrl |= 0x80;
1595 cdr.Stat = NoIntr;
1596 //AddIrqQueue(cdr.Cmd, 0x800);
1597
1598 // GameShark CDX CD Player: very long time
1599 AddIrqQueue(cdr.Cmd, 0x100000);
1600 break;
ef79bbde
P		 1601
1602 case CdlGetTD:
9f8b032d 1603 cdr.Ctrl |= 0x80;
ef79bbde 1604 cdr.Stat = NoIntr;
9f8b032d 1605 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1606 break;
1607
1608 case CdlSeekL:
1609// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1610 cdr.Ctrl |= 0x80;
1611 cdr.Stat = NoIntr;
1612 AddIrqQueue(cdr.Cmd, 0x800);
1613
1614 StopCdda();
1615 StopReading();
1616
1617 break;
ef79bbde
P		 1618
1619 case CdlSeekP:
1620// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
9f8b032d 1621 cdr.Ctrl |= 0x80;
ef79bbde 1622 cdr.Stat = NoIntr;
9f8b032d 1623
1624 // Tomb Raider 2 - reset cdda
1625 StopCdda();
1626 StopReading();
1627
1628 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1629 break;
1630
9f8b032d 1631 // Destruction Derby: read TOC? GetTD after this
1632 case CdlReadT:
1633 cdr.Ctrl |= 0x80;
1634 cdr.Stat = NoIntr;
1635 AddIrqQueue(cdr.Cmd, 0x800);
1636 break;
1637
ef79bbde 1638 case CdlTest:
9f8b032d 1639 cdr.Ctrl |= 0x80;
ef79bbde 1640 cdr.Stat = NoIntr;
9f8b032d 1641 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1642 break;
1643
1644 case CdlID:
9f8b032d 1645 cdr.Ctrl |= 0x80;
ef79bbde 1646 cdr.Stat = NoIntr;
9f8b032d 1647 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1648 break;
1649
1650 case CdlReadS:
9f8b032d 1651 cdr.Irq = 0;
1652 StopReading();
1653 cdr.Ctrl |= 0x80;
1654 cdr.Stat = NoIntr;
1655 StartReading(2, 0x800);
1656 break;
ef79bbde
P		 1657
1658 case CdlReadToc:
9f8b032d 1659 cdr.Ctrl |= 0x80;
ef79bbde 1660 cdr.Stat = NoIntr;
9f8b032d 1661 AddIrqQueue(cdr.Cmd, 0x800);
ef79bbde
P		 1662 break;
1663
1664 default:
1665#ifdef CDR_LOG
9f8b032d 1666 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
ef79bbde 1667#endif
9f8b032d 1668 return;
1669 }
ef79bbde
P		 1670 if (cdr.Stat != NoIntr) {
1671 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1672 }
1673}
1674
1675unsigned char cdrRead2(void) {
1676 unsigned char ret;
1677
1678 if (cdr.Readed == 0) {
1679 ret = 0;
1680 } else {
1681 ret = *cdr.pTransfer++;
1682 }
1683
1684#ifdef CDR_LOG
1685 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1686#endif
1687 return ret;
1688}
1689
1690void cdrWrite2(unsigned char rt) {
1691#ifdef CDR_LOG
1692 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1693#endif
9f8b032d 1694
1695 // Tekken: CDXA fade-out
1696 if( (cdr.Ctrl & 3) == 2 ) {
1697 //cdr.AttenuatorLeft[0] = rt;
1698 }
1699 else if( (cdr.Ctrl & 3) == 3 ) {
1700 //cdr.AttenuatorRight[1] = rt;
1701 }
1702
1703
1704 if (cdr.Ctrl & 0x1) {
ef79bbde
P		 1705 switch (rt) {
1706 case 0x07:
9f8b032d 1707 cdr.ParamP = 0;
ef79bbde
P		 1708 cdr.ParamC = 0;
1709 cdr.ResultReady = 1; //0;
1710 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1711 break;
1712
1713 default:
1714 cdr.Reg2 = rt;
1715 break;
1716 }
9f8b032d 1717 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
ef79bbde
P		 1718 cdr.Param[cdr.ParamP++] = rt;
1719 cdr.ParamC++;
1720 }
1721}
1722
1723unsigned char cdrRead3(void) {
1724 if (cdr.Stat) {
1725 if (cdr.Ctrl & 0x1)
1726 psxHu8(0x1803) = cdr.Stat | 0xE0;
1727 else
1728 psxHu8(0x1803) = 0xff;
1729 } else {
1730 psxHu8(0x1803) = 0;
1731 }
1732#ifdef CDR_LOG
1733 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1734#endif
1735 return psxHu8(0x1803);
1736}
1737
1738void cdrWrite3(unsigned char rt) {
1739#ifdef CDR_LOG
1740 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1741#endif
9f8b032d 1742/*
1743 // Tekken: CDXA fade-out
1744 if( (cdr.Ctrl & 3) == 2 ) {
1745 cdr.AttenuatorLeft[1] = rt;
1746 }
1747 else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1748#ifdef CDR_LOG
1749 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1750 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1751 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1752#endif
1753 }
1754*/
1755
1756 // GameShark CDX CD Player: Irq timing mania
1757 if( rt == 0 &&
1758 cdr.Irq != 0 && cdr.Irq != 0xff &&
1759 cdr.ResultReady == 0 ) {
1760
1761 // GS CDX: ~0x28 cycle timing - way too precise
1762 if( cdr.Irq == CdlGetlocP ) {
1763 cdrInterrupt();
1764
1765 psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1766 }
1767 }
1768
1769
1770 if (rt == 0x07 && cdr.Ctrl & 0x1) {
ef79bbde
P		 1771 cdr.Stat = 0;
1772
1773 if (cdr.Irq == 0xff) {
1774 cdr.Irq = 0;
1775 return;
1776 }
9f8b032d 1777
1778 if (cdr.Reading && !cdr.ResultReady) {
1779 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1780 }
ef79bbde
P		 1781
1782 return;
1783 }
9f8b032d 1784
ef79bbde
P		 1785 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1786 cdr.Readed = 1;
1787 cdr.pTransfer = cdr.Transfer;
1788
1789 switch (cdr.Mode & 0x30) {
9f8b032d 1790 case MODE_SIZE_2328:
ef79bbde
P		 1791 case 0x00:
1792 cdr.pTransfer += 12;
1793 break;
9f8b032d 1794
1795 case MODE_SIZE_2340:
1796 cdr.pTransfer += 0;
1797 break;
1798
ef79bbde
P		 1799 default:
1800 break;
1801 }
1802 }
1803}
1804
1805void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1806 u32 cdsize;
1807 u8 *ptr;
1808
1809#ifdef CDR_LOG
1810 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1811#endif
1812
1813 switch (chcr) {
1814 case 0x11000000:
1815 case 0x11400100:
1816 if (cdr.Readed == 0) {
1817#ifdef CDR_LOG
1818 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1819#endif
1820 break;
1821 }
1822
1823 cdsize = (bcr & 0xffff) * 4;
1824
9f8b032d 1825 // Ape Escape: bcr = 0001 / 0000
1826 // - fix boot
1827 if( cdsize == 0 )
1828 {
1829 switch (cdr.Mode & 0x30) {
1830 case 0x00: cdsize = 2048; break;
1831 case MODE_SIZE_2328: cdsize = 2328; break;
1832 case MODE_SIZE_2340: cdsize = 2340; break;
1833 }
1834 }
1835
1836
ef79bbde
P		 1837 ptr = (u8 *)PSXM(madr);
1838 if (ptr == NULL) {
1839#ifdef CPU_LOG
1840 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1841#endif
1842 break;
1843 }
9f8b032d 1844
1845 /*
1846 GS CDX: Enhancement CD crash
1847 - Setloc 0:0:0
1848 - CdlPlay
1849 - Spams DMA3 and gets buffer overrun
1850 */
1851
1852 if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
1853 {
1854 // avoid crash - probably should wrap here
1855 //memcpy(ptr, cdr.pTransfer, cdsize);
1856 }
1857 else
1858 {
1859 memcpy(ptr, cdr.pTransfer, cdsize);
1860 }
1861
ef79bbde
P		 1862 psxCpu->Clear(madr, cdsize / 4);
1863 cdr.pTransfer += cdsize;
9f8b032d 1864
1865
1866 // burst vs normal
1867 if( chcr == 0x11400100 ) {
1868 CDRDMA_INT( (cdsize/4) / 4 );
1869 }
1870 else if( chcr == 0x11000000 ) {
1871 CDRDMA_INT( (cdsize/4) * 1 );
1872 }
1873 return;
1874
ef79bbde
P		 1875 default:
1876#ifdef CDR_LOG
1877 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1878#endif
1879 break;
1880 }
1881
1882 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1883 DMA_INTERRUPT(3);
1884}
1885
9f8b032d 1886void cdrDmaInterrupt()
1887{
1888 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1889 DMA_INTERRUPT(3);
1890}
1891
ef79bbde
P		 1892void cdrReset() {
1893 memset(&cdr, 0, sizeof(cdr));
1894 cdr.CurTrack = 1;
1895 cdr.File = 1;
1896 cdr.Channel = 1;
1897}
1898
1899int cdrFreeze(gzFile f, int Mode) {
1900 uintptr_t tmp;
1901
ef79bbde 1902
9f8b032d 1903 if( Mode == 0 ) {
1904 StopCdda();
1905 }
1906
1907 gzfreeze(&cdr, sizeof(cdr));
1908
ef79bbde
P		 1909 if (Mode == 1)
1910 tmp = cdr.pTransfer - cdr.Transfer;
1911
1912 gzfreeze(&tmp, sizeof(tmp));
1913
1914 if (Mode == 0)
1915 cdr.pTransfer = cdr.Transfer + tmp;
1916
1917 return 0;
1918}
9f8b032d 1919
1920void LidInterrupt() {
1921 cdr.LidCheck = 0x20; // start checker
1922
1923 CDRLID_INT( cdReadTime * 3 );
1924
1925 // generate interrupt if none active - open or close
1926 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
1927 cdr.Ctrl |= 0x80;
1928 cdr.Stat = NoIntr;
1929 AddIrqQueue(CdlNop, 0x800);
1930 }
1931}
ARM optimized PCSX fork