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cdrom: keep savestate compat
[pcsx_rearmed.git] / libpcsxcore / cdrom.c
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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"
26#include "psxdma.h"
27
28/* logging */
29#if 0
30#define CDR_LOG SysPrintf
31#else
32#define CDR_LOG(...)
33#endif
34#if 0
35#define CDR_LOG_I SysPrintf
36#else
37#define CDR_LOG_I(...)
38#endif
39#if 0
40#define CDR_LOG_IO SysPrintf
41#else
42#define CDR_LOG_IO(...)
43#endif
44//#define CDR_LOG_CMD_IRQ
45
46cdrStruct cdr;
47static unsigned char *pTransfer;
48
49/* CD-ROM magic numbers */
50#define CdlSync 0
51#define CdlNop 1
52#define CdlSetloc 2
53#define CdlPlay 3
54#define CdlForward 4
55#define CdlBackward 5
56#define CdlReadN 6
57#define CdlStandby 7
58#define CdlStop 8
59#define CdlPause 9
60#define CdlInit 10
61#define CdlMute 11
62#define CdlDemute 12
63#define CdlSetfilter 13
64#define CdlSetmode 14
65#define CdlGetmode 15
66#define CdlGetlocL 16
67#define CdlGetlocP 17
68#define CdlReadT 18
69#define CdlGetTN 19
70#define CdlGetTD 20
71#define CdlSeekL 21
72#define CdlSeekP 22
73#define CdlSetclock 23
74#define CdlGetclock 24
75#define CdlTest 25
76#define CdlID 26
77#define CdlReadS 27
78#define CdlReset 28
79#define CdlReadToc 30
80
81char *CmdName[0x100]= {
82 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
83 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
84 "CdlStop", "CdlPause", "CdlInit", "CdlMute",
85 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
86 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
87 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
88 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
89 "CdlReset", NULL, "CDlReadToc", NULL
90};
91
92unsigned char Test04[] = { 0 };
93unsigned char Test05[] = { 0 };
94unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
95unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
96unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
97
98// cdr.Stat:
99#define NoIntr 0
100#define DataReady 1
101#define Complete 2
102#define Acknowledge 3
103#define DataEnd 4
104#define DiskError 5
105
106/* Modes flags */
107#define MODE_SPEED (1<<7) // 0x80
108#define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
109#define MODE_SIZE_2340 (1<<5) // 0x20
110#define MODE_SIZE_2328 (1<<4) // 0x10
111#define MODE_SF (1<<3) // 0x08 channel on/off
112#define MODE_REPORT (1<<2) // 0x04
113#define MODE_AUTOPAUSE (1<<1) // 0x02
114#define MODE_CDDA (1<<0) // 0x01
115
116/* Status flags */
117#define STATUS_PLAY (1<<7) // 0x80
118#define STATUS_SEEK (1<<6) // 0x40
119#define STATUS_READ (1<<5) // 0x20
120#define STATUS_SHELLOPEN (1<<4) // 0x10
121#define STATUS_UNKNOWN3 (1<<3) // 0x08
122#define STATUS_UNKNOWN2 (1<<2) // 0x04
123#define STATUS_ROTATING (1<<1) // 0x02
124#define STATUS_ERROR (1<<0) // 0x01
125
126
127
128// 1x = 75 sectors per second
129// PSXCLK = 1 sec in the ps
130// so (PSXCLK / 75) = cdr read time (linuzappz)
131#define cdReadTime (PSXCLK / 75)
132
133// for cdr.Seeked
134enum seeked_state {
135 SEEK_PENDING = 0,
136 SEEK_DONE = 1,
137};
138
139static struct CdrStat stat;
140
141static unsigned int msf2sec(const u8 *msf) {
142 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
143}
144
145// for that weird psemu API..
146static unsigned int fsm2sec(const u8 *msf) {
147 return ((msf[2] * 60 + msf[1]) * 75) + msf[0];
148}
149
150static void sec2msf(unsigned int s, u8 *msf) {
151 msf[0] = s / 75 / 60;
152 s = s - msf[0] * 75 * 60;
153 msf[1] = s / 75;
154 s = s - msf[1] * 75;
155 msf[2] = s;
156}
157
158// cdrInterrupt
159#define CDR_INT(eCycle) { \
160 psxRegs.interrupt |= (1 << PSXINT_CDR); \
161 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
162 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
163 new_dyna_set_event(PSXINT_CDR, eCycle); \
164}
165
166// cdrReadInterrupt
167#define CDREAD_INT(eCycle) { \
168 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
169 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
170 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
171 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
172}
173
174// cdrLidSeekInterrupt
175#define CDRLID_INT(eCycle) { \
176 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
177 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
178 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
179 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
180}
181
182// cdrPlayInterrupt
183#define CDRMISC_INT(eCycle) { \
184 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
185 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
186 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
187 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
188}
189
190#define StopReading() { \
191 if (cdr.Reading) { \
192 cdr.Reading = 0; \
193 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
194 } \
195 cdr.StatP &= ~STATUS_READ;\
196}
197
198#define StopCdda() { \
199 if (cdr.Play) { \
200 if (!Config.Cdda) CDR_stop(); \
201 cdr.StatP &= ~STATUS_PLAY; \
202 cdr.Play = FALSE; \
203 cdr.FastForward = 0; \
204 cdr.FastBackward = 0; \
205 /*SPU_registerCallback( SPUirq );*/ \
206 } \
207}
208
209#define SetResultSize(size) { \
210 cdr.ResultP = 0; \
211 cdr.ResultC = size; \
212 cdr.ResultReady = 1; \
213}
214
215static void setIrq(void)
216{
217 if (cdr.Stat & cdr.Reg2)
218 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
219}
220
221void cdrLidSeekInterrupt()
222{
223 // turn back on checking
224 if( cdr.LidCheck == 0x10 )
225 {
226 cdr.LidCheck = 0;
227 }
228
229 // official lid close
230 else if( cdr.LidCheck == 0x30 )
231 {
232 // GS CDX 3.3: $13
233 cdr.StatP |= STATUS_ROTATING;
234
235
236 // GS CDX 3.3 - ~50 getlocp tries
237 CDRLID_INT( cdReadTime * 3 );
238 cdr.LidCheck = 0x40;
239 }
240
241 // turn off ready
242 else if( cdr.LidCheck == 0x40 )
243 {
244 // GS CDX 3.3: $01
245 cdr.StatP &= ~STATUS_SHELLOPEN;
246 cdr.StatP &= ~STATUS_ROTATING;
247
248
249 // GS CDX 3.3 - ~50 getlocp tries
250 CDRLID_INT( cdReadTime * 3 );
251 cdr.LidCheck = 0x50;
252 }
253
254 // now seek
255 else if( cdr.LidCheck == 0x50 )
256 {
257 // GameShark Lite: Start seeking ($42)
258 cdr.StatP |= STATUS_SEEK;
259 cdr.StatP |= STATUS_ROTATING;
260 cdr.StatP &= ~STATUS_ERROR;
261
262
263 CDRLID_INT( cdReadTime * 3 );
264 cdr.LidCheck = 0x60;
265 }
266
267 // done = cd ready
268 else if( cdr.LidCheck == 0x60 )
269 {
270 // GameShark Lite: Seek detection done ($02)
271 cdr.StatP &= ~STATUS_SEEK;
272
273 cdr.LidCheck = 0;
274 }
275}
276
277static void Check_Shell( int Irq )
278{
279 // check case open/close
280 if (cdr.LidCheck > 0)
281 {
282 CDR_LOG( "LidCheck\n" );
283
284 // $20 = check lid state
285 if( cdr.LidCheck == 0x20 )
286 {
287 u32 i;
288
289 i = stat.Status;
290 if (CDR_getStatus(&stat) != -1)
291 {
292 // BIOS hangs + BIOS error messages
293 //if (stat.Type == 0xff)
294 //cdr.Stat = DiskError;
295
296 // case now open
297 if (stat.Status & STATUS_SHELLOPEN)
298 {
299 // Vib Ribbon: pre-CD swap
300 StopCdda();
301
302
303 // GameShark Lite: Death if DiskError happens
304 //
305 // Vib Ribbon: Needs DiskError for CD swap
306
307 if (Irq != CdlNop)
308 {
309 cdr.Stat = DiskError;
310
311 cdr.StatP |= STATUS_ERROR;
312 cdr.Result[0] |= STATUS_ERROR;
313 }
314
315 // GameShark Lite: Wants -exactly- $10
316 cdr.StatP |= STATUS_SHELLOPEN;
317 cdr.StatP &= ~STATUS_ROTATING;
318
319
320 CDRLID_INT( cdReadTime * 3 );
321 cdr.LidCheck = 0x10;
322
323
324 // GS CDX 3.3 = $11
325 }
326
327 // case just closed
328 else if ( i & STATUS_SHELLOPEN )
329 {
330 cdr.StatP |= STATUS_ROTATING;
331
332 CheckCdrom();
333
334
335 if( cdr.Stat == NoIntr )
336 cdr.Stat = Acknowledge;
337
338 setIrq();
339
340 // begin close-seek-ready cycle
341 CDRLID_INT( cdReadTime * 3 );
342 cdr.LidCheck = 0x30;
343
344
345 // GameShark Lite: Wants -exactly- $42, then $02
346 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
347 }
348
349 // case still closed - wait for recheck
350 else
351 {
352 CDRLID_INT( cdReadTime * 3 );
353 cdr.LidCheck = 0x10;
354 }
355 }
356 }
357
358
359 // GS CDX: clear all values but #1,#2
360 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
361 {
362 SetResultSize(16);
363 memset( cdr.Result, 0, 16 );
364
365 cdr.Result[0] = cdr.StatP;
366
367
368 // GS CDX: special return value
369 if( cdr.StatP & STATUS_SHELLOPEN )
370 {
371 cdr.Result[1] = 0x80;
372 }
373
374
375 if( cdr.Stat == NoIntr )
376 cdr.Stat = Acknowledge;
377
378 setIrq();
379 }
380 }
381}
382
383static void Find_CurTrack(const u8 *time)
384{
385 int current, sect;
386
387 current = msf2sec(time);
388
389 for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) {
390 CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD);
391 sect = fsm2sec(cdr.ResultTD);
392 if (sect - current >= 150)
393 break;
394 }
395}
396
397static void ReadTrack(const u8 *time) {
398 unsigned char tmp[3];
399 struct SubQ *subq;
400 u16 crc;
401
402 tmp[0] = itob(time[0]);
403 tmp[1] = itob(time[1]);
404 tmp[2] = itob(time[2]);
405
406 if (memcmp(cdr.Prev, tmp, 3) == 0)
407 return;
408
409 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
410
411 cdr.RErr = CDR_readTrack(tmp);
412 memcpy(cdr.Prev, tmp, 3);
413
414 cdr.TrackChanged = FALSE;
415
416 if (CheckSBI(time))
417 return;
418
419 subq = (struct SubQ *)CDR_getBufferSub();
420 if (subq != NULL) {
421 crc = calcCrc((u8 *)subq + 12, 10);
422 if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
423 cdr.subq.Track = subq->TrackNumber;
424 cdr.subq.Index = subq->IndexNumber;
425 memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
426 memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
427
428 // .. + 1 is probably wrong, but deals with corrupted
429 // subq + good checksum
430 // (how does real thing handle that?)
431 if (cdr.CurTrack + 1 == btoi(subq->TrackNumber)) {
432 cdr.CurTrack++;
433 cdr.TrackChanged = TRUE;
434 }
435 }
436 }
437 else {
438 unsigned char start[3], next[3];
439 unsigned int this_s, start_s, next_s, pregap;
440 int relative_s;
441
442 CDR_getTD(cdr.CurTrack, start);
443 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
444 pregap = 150;
445 CDR_getTD(cdr.CurTrack + 1, next);
446 }
447 else {
448 // last track - cd size
449 pregap = 0;
450 next[0] = cdr.SetSectorEnd[2];
451 next[1] = cdr.SetSectorEnd[1];
452 next[2] = cdr.SetSectorEnd[0];
453 }
454
455 this_s = msf2sec(time);
456 start_s = fsm2sec(start);
457 next_s = fsm2sec(next);
458
459 if (next_s - this_s < pregap) {
460 cdr.TrackChanged = TRUE;
461 cdr.CurTrack++;
462 start_s = next_s;
463 }
464
465 cdr.subq.Index = 1;
466
467 relative_s = this_s - start_s;
468 if (relative_s < 0) {
469 cdr.subq.Index = 0;
470 relative_s = -relative_s;
471 }
472 sec2msf(relative_s, cdr.subq.Relative);
473
474 cdr.subq.Track = itob(cdr.CurTrack);
475 cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]);
476 cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]);
477 cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]);
478 cdr.subq.Absolute[0] = tmp[0];
479 cdr.subq.Absolute[1] = tmp[1];
480 cdr.subq.Absolute[2] = tmp[2];
481 }
482
483 CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
484 cdr.subq.Track, cdr.subq.Index,
485 cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
486 cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
487}
488
489static void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
490 if (cdr.Irq != 0)
491 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
492
493 cdr.Irq = irq;
494 cdr.eCycle = ecycle;
495
496 CDR_INT(ecycle);
497}
498
499static void cdrPlayInterrupt_Autopause()
500{
501 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
502 CDR_LOG( "CDDA STOP\n" );
503
504 // Magic the Gathering
505 // - looping territory cdda
506
507 // ...?
508 //cdr.ResultReady = 1;
509 //cdr.Stat = DataReady;
510 cdr.Stat = DataEnd;
511 setIrq();
512
513 StopCdda();
514 }
515 else if (cdr.Mode & MODE_REPORT) {
516
517 cdr.Result[0] = cdr.StatP;
518 cdr.Result[1] = cdr.subq.Track;
519 cdr.Result[2] = cdr.subq.Index;
520
521 if (cdr.subq.Absolute[2] & 0x10) {
522 cdr.Result[3] = cdr.subq.Relative[0];
523 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
524 cdr.Result[5] = cdr.subq.Relative[2];
525 }
526 else {
527 cdr.Result[3] = cdr.subq.Absolute[0];
528 cdr.Result[4] = cdr.subq.Absolute[1];
529 cdr.Result[5] = cdr.subq.Absolute[2];
530 }
531
532 cdr.Result[6] = 0;
533 cdr.Result[7] = 0;
534
535 // Rayman: Logo freeze (resultready + dataready)
536 cdr.ResultReady = 1;
537 cdr.Stat = DataReady;
538
539 SetResultSize(8);
540 setIrq();
541 }
542}
543
544// also handles seek
545void cdrPlayInterrupt()
546{
547 if (cdr.Seeked == SEEK_PENDING) {
548 if (cdr.Stat) {
549 CDR_LOG_I("cdrom: seek stat hack\n");
550 CDRMISC_INT(0x1000);
551 return;
552 }
553 SetResultSize(1);
554 cdr.StatP |= STATUS_ROTATING;
555 cdr.StatP &= ~STATUS_SEEK;
556 cdr.Result[0] = cdr.StatP;
557 cdr.Seeked = SEEK_DONE;
558 if (cdr.Irq == 0) {
559 cdr.Stat = Complete;
560 setIrq();
561 }
562
563 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
564 Find_CurTrack(cdr.SetSectorPlay);
565 ReadTrack(cdr.SetSectorPlay);
566 cdr.TrackChanged = FALSE;
567 }
568
569 if (!cdr.Play) return;
570
571 CDR_LOG( "CDDA - %d:%d:%d\n",
572 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
573
574 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
575 StopCdda();
576 cdr.TrackChanged = TRUE;
577 }
578
579 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
580 cdrPlayInterrupt_Autopause();
581
582 if (!cdr.Play) return;
583
584 cdr.SetSectorPlay[2]++;
585 if (cdr.SetSectorPlay[2] == 75) {
586 cdr.SetSectorPlay[2] = 0;
587 cdr.SetSectorPlay[1]++;
588 if (cdr.SetSectorPlay[1] == 60) {
589 cdr.SetSectorPlay[1] = 0;
590 cdr.SetSectorPlay[0]++;
591 }
592 }
593
594 CDRMISC_INT(cdReadTime);
595
596 // update for CdlGetlocP/autopause
597 ReadTrack(cdr.SetSectorPlay);
598}
599
600void cdrInterrupt() {
601 int i;
602 unsigned char Irq = cdr.Irq;
603
604 // Reschedule IRQ
605 if (cdr.Stat) {
606 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
607 CDR_INT(0x1000);
608 return;
609 }
610
611 cdr.Irq = 0;
612 cdr.Ctrl &= ~0x80;
613
614 switch (Irq) {
615 case CdlSync:
616 SetResultSize(1);
617 cdr.StatP |= STATUS_ROTATING;
618 cdr.Result[0] = cdr.StatP;
619 cdr.Stat = Acknowledge;
620 break;
621
622 case CdlNop:
623 SetResultSize(1);
624 cdr.Result[0] = cdr.StatP;
625 cdr.Stat = Acknowledge;
626
627 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
628 break;
629
630 case CdlSetloc:
631 cdr.CmdProcess = 0;
632 SetResultSize(1);
633 cdr.StatP |= STATUS_ROTATING;
634 cdr.Result[0] = cdr.StatP;
635 cdr.Stat = Acknowledge;
636 break;
637
638 case CdlPlay:
639 if (cdr.Seeked == SEEK_PENDING) {
640 // XXX: wrong, should seek instead..
641 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
642 cdr.Seeked = SEEK_DONE;
643 }
644
645 // BIOS CD Player
646 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
647
648 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
649 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
650 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
651 }
652 else
653 {
654 int track = btoi( cdr.Param[0] );
655
656 if (track <= cdr.ResultTN[1])
657 cdr.CurTrack = track;
658
659 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
660
661 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
662 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
663 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
664 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
665 }
666 }
667
668 /*
669 Rayman: detect track changes
670 - fixes logo freeze
671
672 Twisted Metal 2: skip PREGAP + starting accurate SubQ
673 - plays tracks without retry play
674
675 Wild 9: skip PREGAP + starting accurate SubQ
676 - plays tracks without retry play
677 */
678 Find_CurTrack(cdr.SetSectorPlay);
679 ReadTrack(cdr.SetSectorPlay);
680 cdr.TrackChanged = FALSE;
681
682 if (!Config.Cdda)
683 CDR_play(cdr.SetSectorPlay);
684
685 // Vib Ribbon: gameplay checks flag
686 cdr.StatP &= ~STATUS_SEEK;
687
688 cdr.CmdProcess = 0;
689 SetResultSize(1);
690 cdr.StatP |= STATUS_ROTATING;
691 cdr.Result[0] = cdr.StatP;
692 cdr.Stat = Acknowledge;
693
694 cdr.StatP |= STATUS_PLAY;
695
696
697 // BIOS player - set flag again
698 cdr.Play = TRUE;
699
700 CDRMISC_INT( cdReadTime );
701 break;
702
703 case CdlForward:
704 cdr.CmdProcess = 0;
705 SetResultSize(1);
706 cdr.StatP |= STATUS_ROTATING;
707 cdr.Result[0] = cdr.StatP;
708 cdr.Stat = Complete;
709
710
711 // GameShark CD Player: Calls 2x + Play 2x
712 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
713 else cdr.FastForward++;
714
715 cdr.FastBackward = 0;
716 break;
717
718 case CdlBackward:
719 cdr.CmdProcess = 0;
720 SetResultSize(1);
721 cdr.StatP |= STATUS_ROTATING;
722 cdr.Result[0] = cdr.StatP;
723 cdr.Stat = Complete;
724
725
726 // GameShark CD Player: Calls 2x + Play 2x
727 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
728 else cdr.FastBackward++;
729
730 cdr.FastForward = 0;
731 break;
732
733 case CdlStandby:
734 cdr.CmdProcess = 0;
735 SetResultSize(1);
736 cdr.StatP |= STATUS_ROTATING;
737 cdr.Result[0] = cdr.StatP;
738 cdr.Stat = Complete;
739 break;
740
741 case CdlStop:
742 cdr.CmdProcess = 0;
743 SetResultSize(1);
744 cdr.StatP &= ~STATUS_ROTATING;
745 cdr.Result[0] = cdr.StatP;
746 cdr.Stat = Complete;
747// cdr.Stat = Acknowledge;
748
749 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
750 break;
751
752 case CdlPause:
753 SetResultSize(1);
754 cdr.Result[0] = cdr.StatP;
755 cdr.Stat = Acknowledge;
756
757 /*
758 Gundam Battle Assault 2: much slower (*)
759 - Fixes boot, gameplay
760
761 Hokuto no Ken 2: slower
762 - Fixes intro + subtitles
763
764 InuYasha - Feudal Fairy Tale: slower
765 - Fixes battles
766 */
767 AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
768 cdr.Ctrl |= 0x80;
769 break;
770
771 case CdlPause + 0x20:
772 SetResultSize(1);
773 cdr.StatP &= ~STATUS_READ;
774 cdr.StatP |= STATUS_ROTATING;
775 cdr.Result[0] = cdr.StatP;
776 cdr.Stat = Complete;
777 break;
778
779 case CdlInit:
780 SetResultSize(1);
781 cdr.StatP = STATUS_ROTATING;
782 cdr.Result[0] = cdr.StatP;
783 cdr.Stat = Acknowledge;
784// if (!cdr.Init) {
785 AddIrqQueue(CdlInit + 0x20, 0x800);
786// }
787 break;
788
789 case CdlInit + 0x20:
790 SetResultSize(1);
791 cdr.Result[0] = cdr.StatP;
792 cdr.Stat = Complete;
793 cdr.Init = 1;
794 break;
795
796 case CdlMute:
797 SetResultSize(1);
798 cdr.StatP |= STATUS_ROTATING;
799 cdr.Result[0] = cdr.StatP;
800 cdr.Stat = Acknowledge;
801 break;
802
803 case CdlDemute:
804 SetResultSize(1);
805 cdr.StatP |= STATUS_ROTATING;
806 cdr.Result[0] = cdr.StatP;
807 cdr.Stat = Acknowledge;
808 break;
809
810 case CdlSetfilter:
811 SetResultSize(1);
812 cdr.StatP |= STATUS_ROTATING;
813 cdr.Result[0] = cdr.StatP;
814 cdr.Stat = Acknowledge;
815 break;
816
817 case CdlSetmode:
818 SetResultSize(1);
819 cdr.StatP |= STATUS_ROTATING;
820 cdr.Result[0] = cdr.StatP;
821 cdr.Stat = Acknowledge;
822 break;
823
824 case CdlGetmode:
825 SetResultSize(6);
826 cdr.StatP |= STATUS_ROTATING;
827 cdr.Result[0] = cdr.StatP;
828 cdr.Result[1] = cdr.Mode;
829 cdr.Result[2] = cdr.File;
830 cdr.Result[3] = cdr.Channel;
831 cdr.Result[4] = 0;
832 cdr.Result[5] = 0;
833 cdr.Stat = Acknowledge;
834 break;
835
836 case CdlGetlocL:
837 SetResultSize(8);
838 for (i = 0; i < 8; i++)
839 cdr.Result[i] = cdr.Transfer[i];
840 cdr.Stat = Acknowledge;
841 break;
842
843 case CdlGetlocP:
844 SetResultSize(8);
845 memcpy(&cdr.Result, &cdr.subq, 8);
846
847 if (!cdr.Play && !cdr.Reading)
848 cdr.Result[1] = 0; // HACK?
849
850 cdr.Stat = Acknowledge;
851 break;
852
853 case CdlGetTN:
854 // 5-Star Racing: don't stop CDDA
855 //
856 // Vib Ribbon: CD swap
857 StopReading();
858
859 cdr.CmdProcess = 0;
860 SetResultSize(3);
861 cdr.StatP |= STATUS_ROTATING;
862 cdr.Result[0] = cdr.StatP;
863 if (CDR_getTN(cdr.ResultTN) == -1) {
864 cdr.Stat = DiskError;
865 cdr.Result[0] |= STATUS_ERROR;
866 } else {
867 cdr.Stat = Acknowledge;
868 cdr.Result[1] = itob(cdr.ResultTN[0]);
869 cdr.Result[2] = itob(cdr.ResultTN[1]);
870 }
871 break;
872
873 case CdlGetTD:
874 cdr.CmdProcess = 0;
875 cdr.Track = btoi(cdr.Param[0]);
876 SetResultSize(4);
877 cdr.StatP |= STATUS_ROTATING;
878 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
879 cdr.Stat = DiskError;
880 cdr.Result[0] |= STATUS_ERROR;
881 } else {
882 cdr.Stat = Acknowledge;
883 cdr.Result[0] = cdr.StatP;
884 cdr.Result[1] = itob(cdr.ResultTD[2]);
885 cdr.Result[2] = itob(cdr.ResultTD[1]);
886 cdr.Result[3] = itob(cdr.ResultTD[0]);
887 }
888 break;
889
890 case CdlSeekL:
891 case CdlSeekP:
892 SetResultSize(1);
893 cdr.StatP |= STATUS_ROTATING;
894 cdr.Result[0] = cdr.StatP;
895 cdr.StatP |= STATUS_SEEK;
896 cdr.Stat = Acknowledge;
897
898 /*
899 Crusaders of Might and Magic = 0.5x-4x
900 - fix cutscene speech start
901
902 Eggs of Steel = 2x-?
903 - fix new game
904
905 Medievil = ?-4x
906 - fix cutscene speech
907
908 Rockman X5 = 0.5-4x
909 - fix capcom logo
910 */
911 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
912 cdr.Seeked = SEEK_PENDING;
913 break;
914
915 case CdlTest:
916 cdr.Stat = Acknowledge;
917 switch (cdr.Param[0]) {
918 case 0x20: // System Controller ROM Version
919 SetResultSize(4);
920 memcpy(cdr.Result, Test20, 4);
921 break;
922 case 0x22:
923 SetResultSize(8);
924 memcpy(cdr.Result, Test22, 4);
925 break;
926 case 0x23: case 0x24:
927 SetResultSize(8);
928 memcpy(cdr.Result, Test23, 4);
929 break;
930 }
931 break;
932
933 case CdlID:
934 SetResultSize(1);
935 cdr.StatP |= STATUS_ROTATING;
936 cdr.Result[0] = cdr.StatP;
937 cdr.Stat = Acknowledge;
938 AddIrqQueue(CdlID + 0x20, 0x800);
939 break;
940
941 case CdlID + 0x20:
942 SetResultSize(8);
943
944 if (CDR_getStatus(&stat) == -1) {
945 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
946 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
947 }
948 else {
949 if (stat.Type == 2) {
950 // Music CD
951 cdr.Result[0] = 0x08;
952 cdr.Result[1] = 0x10;
953
954 cdr.Result[1] |= 0x80;
955 }
956 else {
957 // Data CD
958 if (CdromId[0] == '\0') {
959 cdr.Result[0] = 0x00;
960 cdr.Result[1] = 0x80;
961 }
962 else {
963 cdr.Result[0] = 0x08;
964 cdr.Result[1] = 0x00;
965 }
966 }
967 }
968
969 cdr.Result[2] = 0x00;
970 cdr.Result[3] = 0x00;
971 strncpy((char *)&cdr.Result[4], "PCSX", 4);
972 cdr.Stat = Complete;
973 break;
974
975 case CdlReset:
976 SetResultSize(1);
977 cdr.StatP = STATUS_ROTATING;
978 cdr.Result[0] = cdr.StatP;
979 cdr.Stat = Acknowledge;
980 break;
981
982 case CdlReadT:
983 SetResultSize(1);
984 cdr.StatP |= STATUS_ROTATING;
985 cdr.Result[0] = cdr.StatP;
986 cdr.Stat = Acknowledge;
987 AddIrqQueue(CdlReadT + 0x20, 0x800);
988 break;
989
990 case CdlReadT + 0x20:
991 SetResultSize(1);
992 cdr.StatP |= STATUS_ROTATING;
993 cdr.Result[0] = cdr.StatP;
994 cdr.Stat = Complete;
995 break;
996
997 case CdlReadToc:
998 SetResultSize(1);
999 cdr.StatP |= STATUS_ROTATING;
1000 cdr.Result[0] = cdr.StatP;
1001 cdr.Stat = Acknowledge;
1002 AddIrqQueue(CdlReadToc + 0x20, 0x800);
1003 break;
1004
1005 case CdlReadToc + 0x20:
1006 SetResultSize(1);
1007 cdr.StatP |= STATUS_ROTATING;
1008 cdr.Result[0] = cdr.StatP;
1009 cdr.Stat = Complete;
1010 break;
1011
1012 case CdlReadN:
1013 case CdlReadS:
1014 if (!cdr.Reading) return;
1015
1016 // Fighting Force 2 - update subq time immediately
1017 // - fixes new game
1018 cdr.CurTrack = 1;
1019 ReadTrack(cdr.SetSector);
1020
1021
1022 // Crusaders of Might and Magic - update getlocl now
1023 // - fixes cutscene speech
1024 {
1025 u8 *buf = CDR_getBuffer();
1026 if (buf != NULL)
1027 memcpy(cdr.Transfer, buf, 8);
1028 }
1029
1030 /*
1031 Duke Nukem: Land of the Babes - seek then delay read for one frame
1032 - fixes cutscenes
1033 C-12 - Final Resistance - doesn't like seek
1034 */
1035
1036 if (cdr.Seeked != SEEK_DONE) {
1037 cdr.StatP |= STATUS_SEEK;
1038 cdr.StatP &= ~STATUS_READ;
1039
1040 // Crusaders of Might and Magic - use short time
1041 // - fix cutscene speech (startup)
1042
1043 // ??? - use more accurate seek time later
1044 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1045 } else {
1046 cdr.StatP |= STATUS_READ;
1047 cdr.StatP &= ~STATUS_SEEK;
1048
1049 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1050 }
1051
1052 SetResultSize(1);
1053 cdr.StatP |= STATUS_ROTATING;
1054 cdr.Result[0] = cdr.StatP;
1055 cdr.Stat = Acknowledge;
1056 break;
1057
1058 default:
1059 cdr.Stat = Complete;
1060 break;
1061 }
1062
1063 Check_Shell( Irq );
1064
1065 cdr.ParamC = 0;
1066
1067 setIrq();
1068
1069#ifdef CDR_LOG_CMD_IRQ
1070 SysPrintf("cdrInterrupt() Log: CDR Interrupt IRQ %d %02x: ",
1071 cdr.Stat != NoIntr && cdr.Reg2 != 0x18, Irq);
1072 for (i = 0; i < cdr.ResultC; i++)
1073 SysPrintf("%02x ", cdr.Result[i]);
1074 SysPrintf("\n");
1075#endif
1076}
1077
1078void cdrReadInterrupt() {
1079 u8 *buf;
1080
1081 if (!cdr.Reading)
1082 return;
1083
1084 if (cdr.Irq || cdr.Stat) {
1085 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1086 CDREAD_INT(0x1000);
1087 return;
1088 }
1089
1090 cdr.OCUP = 1;
1091 SetResultSize(1);
1092 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1093 cdr.StatP &= ~STATUS_SEEK;
1094 cdr.Result[0] = cdr.StatP;
1095 cdr.Seeked = SEEK_DONE;
1096
1097 ReadTrack( cdr.SetSector );
1098
1099 buf = CDR_getBuffer();
1100 if (buf == NULL)
1101 cdr.RErr = -1;
1102
1103 if (cdr.RErr == -1) {
1104 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1105 memset(cdr.Transfer, 0, DATA_SIZE);
1106 cdr.Stat = DiskError;
1107 cdr.Result[0] |= STATUS_ERROR;
1108 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1109 return;
1110 }
1111
1112 memcpy(cdr.Transfer, buf, DATA_SIZE);
1113 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1114
1115
1116 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1117
1118 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1119 // Firemen 2: Multi-XA files - briefings, cutscenes
1120 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1121 cdr.File = cdr.Transfer[4 + 0];
1122 cdr.Channel = cdr.Transfer[4 + 1];
1123 }
1124
1125 if ((cdr.Transfer[4 + 2] & 0x4) &&
1126 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1127 (cdr.Transfer[4 + 0] == cdr.File)) {
1128 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1129
1130 if (!ret) {
1131 // only handle attenuator basic channel switch for now
1132 if (cdr.Xa.stereo) {
1133 int i;
1134 if ((cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1135 && !(cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1136 {
1137 for (i = 0; i < cdr.Xa.nsamples; i++)
1138 cdr.Xa.pcm[i*2 + 1] = cdr.Xa.pcm[i*2];
1139 }
1140 else if (!(cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1141 && (cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1142 {
1143 for (i = 0; i < cdr.Xa.nsamples; i++)
1144 cdr.Xa.pcm[i*2] = cdr.Xa.pcm[i*2 + 1];
1145 }
1146 }
1147
1148 SPU_playADPCMchannel(&cdr.Xa);
1149 cdr.FirstSector = 0;
1150
1151#if 0
1152 // Crash Team Racing: music, speech
1153 // - done using cdda decoded buffer (spu irq)
1154 // - don't do here
1155
1156 // signal ADPCM data ready
1157 setIrq();
1158#endif
1159 }
1160 else cdr.FirstSector = -1;
1161 }
1162 }
1163
1164 cdr.SetSector[2]++;
1165 if (cdr.SetSector[2] == 75) {
1166 cdr.SetSector[2] = 0;
1167 cdr.SetSector[1]++;
1168 if (cdr.SetSector[1] == 60) {
1169 cdr.SetSector[1] = 0;
1170 cdr.SetSector[0]++;
1171 }
1172 }
1173
1174 cdr.Readed = 0;
1175
1176 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1177
1178 /*
1179 Croc 2: $40 - only FORM1 (*)
1180 Judge Dredd: $C8 - only FORM1 (*)
1181 Sim Theme Park - no adpcm at all (zero)
1182 */
1183
1184 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1185 cdr.Stat = DataReady;
1186 setIrq();
1187 }
1188
1189 // update for CdlGetlocP
1190 ReadTrack(cdr.SetSector);
1191
1192 Check_Shell(0);
1193}
1194
1195/*
1196cdrRead0:
1197 bit 0,1 - mode
1198 bit 2 - unknown
1199 bit 3 - unknown
1200 bit 4 - unknown
1201 bit 5 - 1 result ready
1202 bit 6 - 1 dma ready
1203 bit 7 - 1 command being processed
1204*/
1205
1206unsigned char cdrRead0(void) {
1207 if (cdr.ResultReady)
1208 cdr.Ctrl |= 0x20;
1209 else
1210 cdr.Ctrl &= ~0x20;
1211
1212 if (cdr.OCUP)
1213 cdr.Ctrl |= 0x40;
1214// else
1215// cdr.Ctrl &= ~0x40;
1216
1217 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1218 cdr.Ctrl |= 0x18;
1219
1220 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1221
1222 return psxHu8(0x1800) = cdr.Ctrl;
1223}
1224
1225void cdrWrite0(unsigned char rt) {
1226 CDR_LOG_IO("cdr w0: %02x\n", rt);
1227
1228 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1229}
1230
1231unsigned char cdrRead1(void) {
1232 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1233 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1234 else
1235 psxHu8(0x1801) = 0;
1236 cdr.ResultP++;
1237 if (cdr.ResultP == cdr.ResultC)
1238 cdr.ResultReady = 0;
1239
1240 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1241
1242 return psxHu8(0x1801);
1243}
1244
1245void cdrWrite1(unsigned char rt) {
1246 u8 set_loc[3];
1247 int i;
1248
1249 CDR_LOG_IO("cdr w1: %02x\n", rt);
1250
1251 switch (cdr.Ctrl & 3) {
1252 case 0:
1253 break;
1254 case 3:
1255 cdr.AttenuatorRight[1] = rt;
1256 return;
1257 default:
1258 return;
1259 }
1260
1261 cdr.Cmd = rt;
1262 cdr.OCUP = 0;
1263
1264#ifdef CDR_LOG_CMD_IRQ
1265 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1266 if (cdr.ParamC) {
1267 SysPrintf(" Param[%d] = {", cdr.ParamC);
1268 for (i = 0; i < cdr.ParamC; i++)
1269 SysPrintf(" %x,", cdr.Param[i]);
1270 SysPrintf("}\n");
1271 } else {
1272 SysPrintf("\n");
1273 }
1274#endif
1275
1276 cdr.ResultReady = 0;
1277 cdr.Ctrl |= 0x80;
1278 // cdr.Stat = NoIntr;
1279 AddIrqQueue(cdr.Cmd, 0x800);
1280
1281 switch (cdr.Cmd) {
1282 case CdlSync:
1283 case CdlNop:
1284 case CdlForward:
1285 case CdlBackward:
1286 case CdlReadT:
1287 case CdlTest:
1288 case CdlID:
1289 case CdlReadToc:
1290 case CdlGetmode:
1291 case CdlGetlocL:
1292 case CdlGetlocP:
1293 case CdlGetTD:
1294 break;
1295
1296 case CdlSetloc:
1297 StopReading();
1298 for (i = 0; i < 3; i++)
1299 set_loc[i] = btoi(cdr.Param[i]);
1300
1301 // FIXME: clean up this SetSector/SetSectorPlay mess,
1302 // there should be single var tracking current sector pos
1303 if (cdr.Play)
1304 i = msf2sec(cdr.SetSectorPlay);
1305 else
1306 i = msf2sec(cdr.SetSector);
1307 i = abs(i - msf2sec(set_loc));
1308 if (i > 16)
1309 cdr.Seeked = SEEK_PENDING;
1310
1311 memcpy(cdr.SetSector, set_loc, 3);
1312 cdr.SetSector[3] = 0;
1313 break;
1314
1315 case CdlPlay:
1316 // Vib Ribbon: try same track again
1317 StopCdda();
1318
1319#if 0
1320 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1321 if (CDR_getTN(cdr.ResultTN) != -1) {
1322 if (cdr.CurTrack > cdr.ResultTN[1])
1323 cdr.CurTrack = cdr.ResultTN[1];
1324 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1325 int tmp = cdr.ResultTD[2];
1326 cdr.ResultTD[2] = cdr.ResultTD[0];
1327 cdr.ResultTD[0] = tmp;
1328 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1329 }
1330 }
1331 }
1332#endif
1333 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1334 // - fixes ribbon timing + music CD mode
1335 //TODO?
1336 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1337
1338 cdr.Play = TRUE;
1339
1340 cdr.StatP |= STATUS_SEEK;
1341 cdr.StatP &= ~STATUS_ROTATING;
1342 break;
1343
1344 case CdlReadN:
1345 StopReading();
1346 cdr.Reading = 1;
1347 cdr.FirstSector = 1;
1348 cdr.Readed = 0xff;
1349 break;
1350
1351 case CdlStandby:
1352 StopCdda();
1353 StopReading();
1354 break;
1355
1356 case CdlStop:
1357 // GameShark CD Player: Reset CDDA to track start
1358 if (cdr.Play) {
1359 // grab time for current track
1360 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1361
1362 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1363 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1364 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1365 }
1366
1367 StopCdda();
1368 StopReading();
1369 break;
1370
1371 case CdlPause:
1372 /*
1373 GameShark CD Player: save time for resume
1374
1375 Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1376 */
1377
1378 StopCdda();
1379 StopReading();
1380 break;
1381
1382 case CdlReset:
1383 case CdlInit:
1384 cdr.Seeked = SEEK_DONE;
1385 StopCdda();
1386 StopReading();
1387 break;
1388
1389 case CdlMute:
1390 cdr.Muted = TRUE;
1391 // Duke Nukem - Time to Kill
1392 // - do not directly set cd-xa volume
1393 //SPU_writeRegister( H_CDLeft, 0x0000 );
1394 //SPU_writeRegister( H_CDRight, 0x0000 );
1395 break;
1396
1397 case CdlDemute:
1398 cdr.Muted = FALSE;
1399
1400 // Duke Nukem - Time to Kill
1401 // - do not directly set cd-xa volume
1402 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1403 //SPU_writeRegister( H_CDRight, 0x7f00 );
1404 break;
1405
1406 case CdlSetfilter:
1407 cdr.File = cdr.Param[0];
1408 cdr.Channel = cdr.Param[1];
1409 break;
1410
1411 case CdlSetmode:
1412 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1413
1414 cdr.Mode = cdr.Param[0];
1415
1416 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1417 // - fixes choppy movie sound
1418 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1419 StopCdda();
1420 break;
1421
1422 case CdlGetTN:
1423 //AddIrqQueue(cdr.Cmd, 0x800);
1424
1425 // GameShark CDX CD Player: very long time
1426 AddIrqQueue(cdr.Cmd, 0x100000);
1427 break;
1428
1429 case CdlSeekL:
1430 case CdlSeekP:
1431 // Tomb Raider 2 - reset cdda
1432 StopCdda();
1433 StopReading();
1434 break;
1435
1436 case CdlReadS:
1437 StopReading();
1438 cdr.Reading = 2;
1439 cdr.FirstSector = 1;
1440 cdr.Readed = 0xff;
1441 break;
1442
1443 default:
1444 cdr.ParamC = 0;
1445 CDR_LOG_I("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1446 return;
1447 }
1448}
1449
1450unsigned char cdrRead2(void) {
1451 unsigned char ret;
1452
1453 if (cdr.Readed == 0) {
1454 ret = 0;
1455 } else {
1456 ret = *pTransfer++;
1457 }
1458
1459 CDR_LOG_IO("cdr r2: %02x\n", ret);
1460 return ret;
1461}
1462
1463void cdrWrite2(unsigned char rt) {
1464 CDR_LOG_IO("cdr w2: %02x\n", rt);
1465
1466 switch (cdr.Ctrl & 3) {
1467 case 0:
1468 if (cdr.ParamC < 8) // FIXME: size and wrapping
1469 cdr.Param[cdr.ParamC++] = rt;
1470 return;
1471 case 1:
1472 cdr.Reg2 = rt;
1473 setIrq();
1474 return;
1475 case 2:
1476 cdr.AttenuatorLeft[0] = rt;
1477 return;
1478 case 3:
1479 cdr.AttenuatorRight[0] = rt;
1480 return;
1481 }
1482}
1483
1484unsigned char cdrRead3(void) {
1485 if (cdr.Ctrl & 0x1)
1486 psxHu8(0x1803) = cdr.Stat | 0xE0;
1487 else
1488 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1489
1490 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1491 return psxHu8(0x1803);
1492}
1493
1494void cdrWrite3(unsigned char rt) {
1495 CDR_LOG_IO("cdr w3: %02x\n", rt);
1496
1497 switch (cdr.Ctrl & 3) {
1498 case 0:
1499 break; // transfer
1500 case 1:
1501 cdr.Stat &= ~rt;
1502
1503 if (rt & 0x40)
1504 cdr.ParamC = 0;
1505 return;
1506 case 2:
1507 cdr.AttenuatorLeft[1] = rt;
1508 return;
1509 case 3:
1510 if (rt == 0x20)
1511 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1512 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1513 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1514 return;
1515 }
1516
1517 if ((rt & 0x80) && cdr.Readed == 0) {
1518 cdr.Readed = 1;
1519 pTransfer = cdr.Transfer;
1520
1521 switch (cdr.Mode & 0x30) {
1522 case MODE_SIZE_2328:
1523 case 0x00:
1524 pTransfer += 12;
1525 break;
1526
1527 case MODE_SIZE_2340:
1528 pTransfer += 0;
1529 break;
1530
1531 default:
1532 break;
1533 }
1534 }
1535}
1536
1537void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1538 u32 cdsize;
1539 int size;
1540 u8 *ptr;
1541
1542 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1543
1544 switch (chcr) {
1545 case 0x11000000:
1546 case 0x11400100:
1547 if (cdr.Readed == 0) {
1548 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1549 break;
1550 }
1551
1552 cdsize = (bcr & 0xffff) * 4;
1553
1554 // Ape Escape: bcr = 0001 / 0000
1555 // - fix boot
1556 if( cdsize == 0 )
1557 {
1558 switch (cdr.Mode & 0x30) {
1559 case 0x00: cdsize = 2048; break;
1560 case MODE_SIZE_2328: cdsize = 2328; break;
1561 case MODE_SIZE_2340: cdsize = 2340; break;
1562 }
1563 }
1564
1565
1566 ptr = (u8 *)PSXM(madr);
1567 if (ptr == NULL) {
1568 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1569 break;
1570 }
1571
1572 /*
1573 GS CDX: Enhancement CD crash
1574 - Setloc 0:0:0
1575 - CdlPlay
1576 - Spams DMA3 and gets buffer overrun
1577 */
1578 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1579 if (size > cdsize)
1580 size = cdsize;
1581 if (size > 0)
1582 {
1583 memcpy(ptr, pTransfer, size);
1584 }
1585
1586 psxCpu->Clear(madr, cdsize / 4);
1587 pTransfer += cdsize;
1588
1589
1590 // burst vs normal
1591 if( chcr == 0x11400100 ) {
1592 CDRDMA_INT( (cdsize/4) / 4 );
1593 }
1594 else if( chcr == 0x11000000 ) {
1595 CDRDMA_INT( (cdsize/4) * 1 );
1596 }
1597 return;
1598
1599 default:
1600 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1601 break;
1602 }
1603
1604 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1605 DMA_INTERRUPT(3);
1606}
1607
1608void cdrDmaInterrupt()
1609{
1610 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1611 {
1612 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1613 DMA_INTERRUPT(3);
1614 }
1615}
1616
1617static void getCdInfo(void)
1618{
1619 u8 tmp;
1620
1621 CDR_getTN(cdr.ResultTN);
1622 CDR_getTD(0, cdr.SetSectorEnd);
1623 tmp = cdr.SetSectorEnd[0];
1624 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1625 cdr.SetSectorEnd[2] = tmp;
1626}
1627
1628void cdrReset() {
1629 memset(&cdr, 0, sizeof(cdr));
1630 cdr.CurTrack = 1;
1631 cdr.File = 1;
1632 cdr.Channel = 1;
1633 pTransfer = cdr.Transfer;
1634
1635 // BIOS player - default values
1636 cdr.AttenuatorLeft[0] = 0x80;
1637 cdr.AttenuatorLeft[1] = 0x00;
1638 cdr.AttenuatorRight[0] = 0x00;
1639 cdr.AttenuatorRight[1] = 0x80;
1640
1641 getCdInfo();
1642}
1643
1644int cdrFreeze(void *f, int Mode) {
1645 u32 tmp;
1646 u8 tmpp[3];
1647
1648 if (Mode == 0 && !Config.Cdda)
1649 CDR_stop();
1650
1651 cdr.freeze_ver = 0x63647201;
1652 gzfreeze(&cdr, sizeof(cdr));
1653
1654 if (Mode == 1) {
1655 cdr.ParamP = cdr.ParamC;
1656 tmp = pTransfer - cdr.Transfer;
1657 }
1658
1659 gzfreeze(&tmp, sizeof(tmp));
1660
1661 if (Mode == 0) {
1662 getCdInfo();
1663
1664 pTransfer = cdr.Transfer + tmp;
1665
1666 // read right sub data
1667 memcpy(tmpp, cdr.Prev, 3);
1668 cdr.Prev[0]++;
1669 ReadTrack(tmpp);
1670
1671 if (cdr.Play) {
1672 Find_CurTrack(cdr.SetSectorPlay);
1673 if (!Config.Cdda)
1674 CDR_play(cdr.SetSectorPlay);
1675 }
1676
1677 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1678 // old versions did not latch Reg2, have to fixup..
1679 if (cdr.Reg2 == 0) {
1680 SysPrintf("cdrom: fixing up old savestate\n");
1681 cdr.Reg2 = 7;
1682 }
1683 }
1684 }
1685
1686 return 0;
1687}
1688
1689void LidInterrupt() {
1690 cdr.LidCheck = 0x20; // start checker
1691
1692 getCdInfo();
1693
1694 StopCdda();
1695 CDRLID_INT( cdReadTime * 3 );
1696
1697 // generate interrupt if none active - open or close
1698 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
1699 cdr.Ctrl |= 0x80;
1700 cdr.Stat = NoIntr;
1701 AddIrqQueue(CdlNop, 0x800);
1702 }
1703}
ARM optimized PCSX fork