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cdriso: handle file offsets better
[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 generate_subq(const u8 *time)
398{
399 unsigned char start[3], next[3];
400 unsigned int this_s, start_s, next_s, pregap;
401 int relative_s;
402
403 CDR_getTD(cdr.CurTrack, start);
404 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
405 pregap = 150;
406 CDR_getTD(cdr.CurTrack + 1, next);
407 }
408 else {
409 // last track - cd size
410 pregap = 0;
411 next[0] = cdr.SetSectorEnd[2];
412 next[1] = cdr.SetSectorEnd[1];
413 next[2] = cdr.SetSectorEnd[0];
414 }
415
416 this_s = msf2sec(time);
417 start_s = fsm2sec(start);
418 next_s = fsm2sec(next);
419
420 cdr.TrackChanged = FALSE;
421
422 if (next_s - this_s < pregap) {
423 cdr.TrackChanged = TRUE;
424 cdr.CurTrack++;
425 start_s = next_s;
426 }
427
428 cdr.subq.Index = 1;
429
430 relative_s = this_s - start_s;
431 if (relative_s < 0) {
432 cdr.subq.Index = 0;
433 relative_s = -relative_s;
434 }
435 sec2msf(relative_s, cdr.subq.Relative);
436
437 cdr.subq.Track = itob(cdr.CurTrack);
438 cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]);
439 cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]);
440 cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]);
441 cdr.subq.Absolute[0] = itob(time[0]);
442 cdr.subq.Absolute[1] = itob(time[1]);
443 cdr.subq.Absolute[2] = itob(time[2]);
444}
445
446static void ReadTrack(const u8 *time) {
447 unsigned char tmp[3];
448 struct SubQ *subq;
449 u16 crc;
450
451 tmp[0] = itob(time[0]);
452 tmp[1] = itob(time[1]);
453 tmp[2] = itob(time[2]);
454
455 if (memcmp(cdr.Prev, tmp, 3) == 0)
456 return;
457
458 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
459
460 cdr.RErr = CDR_readTrack(tmp);
461 memcpy(cdr.Prev, tmp, 3);
462
463 if (CheckSBI(time))
464 return;
465
466 subq = (struct SubQ *)CDR_getBufferSub();
467 if (subq != NULL && cdr.CurTrack == 1) {
468 crc = calcCrc((u8 *)subq + 12, 10);
469 if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
470 cdr.subq.Track = subq->TrackNumber;
471 cdr.subq.Index = subq->IndexNumber;
472 memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
473 memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
474 }
475 else {
476 CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
477 tmp[0], tmp[1], tmp[2]);
478 }
479 }
480 else {
481 generate_subq(time);
482 }
483
484 CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
485 cdr.subq.Track, cdr.subq.Index,
486 cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
487 cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
488}
489
490static void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
491 if (cdr.Irq != 0)
492 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
493
494 cdr.Irq = irq;
495 cdr.eCycle = ecycle;
496
497 CDR_INT(ecycle);
498}
499
500static void cdrPlayInterrupt_Autopause()
501{
502 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
503 CDR_LOG( "CDDA STOP\n" );
504
505 // Magic the Gathering
506 // - looping territory cdda
507
508 // ...?
509 //cdr.ResultReady = 1;
510 //cdr.Stat = DataReady;
511 cdr.Stat = DataEnd;
512 setIrq();
513
514 StopCdda();
515 }
516 else if (cdr.Mode & MODE_REPORT) {
517
518 cdr.Result[0] = cdr.StatP;
519 cdr.Result[1] = cdr.subq.Track;
520 cdr.Result[2] = cdr.subq.Index;
521
522 if (cdr.subq.Absolute[2] & 0x10) {
523 cdr.Result[3] = cdr.subq.Relative[0];
524 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
525 cdr.Result[5] = cdr.subq.Relative[2];
526 }
527 else {
528 cdr.Result[3] = cdr.subq.Absolute[0];
529 cdr.Result[4] = cdr.subq.Absolute[1];
530 cdr.Result[5] = cdr.subq.Absolute[2];
531 }
532
533 cdr.Result[6] = 0;
534 cdr.Result[7] = 0;
535
536 // Rayman: Logo freeze (resultready + dataready)
537 cdr.ResultReady = 1;
538 cdr.Stat = DataReady;
539
540 SetResultSize(8);
541 setIrq();
542 }
543}
544
545// also handles seek
546void cdrPlayInterrupt()
547{
548 if (cdr.Seeked == SEEK_PENDING) {
549 if (cdr.Stat) {
550 CDR_LOG_I("cdrom: seek stat hack\n");
551 CDRMISC_INT(0x1000);
552 return;
553 }
554 SetResultSize(1);
555 cdr.StatP |= STATUS_ROTATING;
556 cdr.StatP &= ~STATUS_SEEK;
557 cdr.Result[0] = cdr.StatP;
558 cdr.Seeked = SEEK_DONE;
559 if (cdr.Irq == 0) {
560 cdr.Stat = Complete;
561 setIrq();
562 }
563
564 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
565 Find_CurTrack(cdr.SetSectorPlay);
566 ReadTrack(cdr.SetSectorPlay);
567 cdr.TrackChanged = FALSE;
568 }
569
570 if (!cdr.Play) return;
571
572 CDR_LOG( "CDDA - %d:%d:%d\n",
573 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
574
575 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
576 StopCdda();
577 cdr.TrackChanged = TRUE;
578 }
579
580 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
581 cdrPlayInterrupt_Autopause();
582
583 if (!cdr.Play) return;
584
585 cdr.SetSectorPlay[2]++;
586 if (cdr.SetSectorPlay[2] == 75) {
587 cdr.SetSectorPlay[2] = 0;
588 cdr.SetSectorPlay[1]++;
589 if (cdr.SetSectorPlay[1] == 60) {
590 cdr.SetSectorPlay[1] = 0;
591 cdr.SetSectorPlay[0]++;
592 }
593 }
594
595 CDRMISC_INT(cdReadTime);
596
597 // update for CdlGetlocP/autopause
598 generate_subq(cdr.SetSectorPlay);
599}
600
601void cdrInterrupt() {
602 int i;
603 unsigned char Irq = cdr.Irq;
604
605 // Reschedule IRQ
606 if (cdr.Stat) {
607 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
608 CDR_INT(0x1000);
609 return;
610 }
611
612 cdr.Irq = 0;
613 cdr.Ctrl &= ~0x80;
614
615 switch (Irq) {
616 case CdlSync:
617 SetResultSize(1);
618 cdr.StatP |= STATUS_ROTATING;
619 cdr.Result[0] = cdr.StatP;
620 cdr.Stat = Acknowledge;
621 break;
622
623 case CdlNop:
624 SetResultSize(1);
625 cdr.Result[0] = cdr.StatP;
626 cdr.Stat = Acknowledge;
627
628 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
629 break;
630
631 case CdlSetloc:
632 cdr.CmdProcess = 0;
633 SetResultSize(1);
634 cdr.StatP |= STATUS_ROTATING;
635 cdr.Result[0] = cdr.StatP;
636 cdr.Stat = Acknowledge;
637 break;
638
639 case CdlPlay:
640 if (cdr.Seeked == SEEK_PENDING) {
641 // XXX: wrong, should seek instead..
642 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
643 cdr.Seeked = SEEK_DONE;
644 }
645
646 // BIOS CD Player
647 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
648
649 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
650 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
651 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
652 }
653 else
654 {
655 int track = btoi( cdr.Param[0] );
656
657 if (track <= cdr.ResultTN[1])
658 cdr.CurTrack = track;
659
660 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
661
662 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
663 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
664 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
665 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
666 }
667 }
668
669 /*
670 Rayman: detect track changes
671 - fixes logo freeze
672
673 Twisted Metal 2: skip PREGAP + starting accurate SubQ
674 - plays tracks without retry play
675
676 Wild 9: skip PREGAP + starting accurate SubQ
677 - plays tracks without retry play
678 */
679 Find_CurTrack(cdr.SetSectorPlay);
680 ReadTrack(cdr.SetSectorPlay);
681 cdr.TrackChanged = FALSE;
682
683 if (!Config.Cdda)
684 CDR_play(cdr.SetSectorPlay);
685
686 // Vib Ribbon: gameplay checks flag
687 cdr.StatP &= ~STATUS_SEEK;
688
689 cdr.CmdProcess = 0;
690 SetResultSize(1);
691 cdr.StatP |= STATUS_ROTATING;
692 cdr.Result[0] = cdr.StatP;
693 cdr.Stat = Acknowledge;
694
695 cdr.StatP |= STATUS_PLAY;
696
697
698 // BIOS player - set flag again
699 cdr.Play = TRUE;
700
701 CDRMISC_INT( cdReadTime );
702 break;
703
704 case CdlForward:
705 cdr.CmdProcess = 0;
706 SetResultSize(1);
707 cdr.StatP |= STATUS_ROTATING;
708 cdr.Result[0] = cdr.StatP;
709 cdr.Stat = Complete;
710
711
712 // GameShark CD Player: Calls 2x + Play 2x
713 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
714 else cdr.FastForward++;
715
716 cdr.FastBackward = 0;
717 break;
718
719 case CdlBackward:
720 cdr.CmdProcess = 0;
721 SetResultSize(1);
722 cdr.StatP |= STATUS_ROTATING;
723 cdr.Result[0] = cdr.StatP;
724 cdr.Stat = Complete;
725
726
727 // GameShark CD Player: Calls 2x + Play 2x
728 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
729 else cdr.FastBackward++;
730
731 cdr.FastForward = 0;
732 break;
733
734 case CdlStandby:
735 cdr.CmdProcess = 0;
736 SetResultSize(1);
737 cdr.StatP |= STATUS_ROTATING;
738 cdr.Result[0] = cdr.StatP;
739 cdr.Stat = Complete;
740 break;
741
742 case CdlStop:
743 cdr.CmdProcess = 0;
744 SetResultSize(1);
745 cdr.StatP &= ~STATUS_ROTATING;
746 cdr.Result[0] = cdr.StatP;
747 cdr.Stat = Complete;
748// cdr.Stat = Acknowledge;
749
750 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
751 break;
752
753 case CdlPause:
754 SetResultSize(1);
755 cdr.Result[0] = cdr.StatP;
756 cdr.Stat = Acknowledge;
757
758 /*
759 Gundam Battle Assault 2: much slower (*)
760 - Fixes boot, gameplay
761
762 Hokuto no Ken 2: slower
763 - Fixes intro + subtitles
764
765 InuYasha - Feudal Fairy Tale: slower
766 - Fixes battles
767 */
768 AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
769 cdr.Ctrl |= 0x80;
770 break;
771
772 case CdlPause + 0x20:
773 SetResultSize(1);
774 cdr.StatP &= ~STATUS_READ;
775 cdr.StatP |= STATUS_ROTATING;
776 cdr.Result[0] = cdr.StatP;
777 cdr.Stat = Complete;
778 break;
779
780 case CdlInit:
781 SetResultSize(1);
782 cdr.StatP = STATUS_ROTATING;
783 cdr.Result[0] = cdr.StatP;
784 cdr.Stat = Acknowledge;
785// if (!cdr.Init) {
786 AddIrqQueue(CdlInit + 0x20, 0x800);
787// }
788 break;
789
790 case CdlInit + 0x20:
791 SetResultSize(1);
792 cdr.Result[0] = cdr.StatP;
793 cdr.Stat = Complete;
794 cdr.Init = 1;
795 break;
796
797 case CdlMute:
798 SetResultSize(1);
799 cdr.StatP |= STATUS_ROTATING;
800 cdr.Result[0] = cdr.StatP;
801 cdr.Stat = Acknowledge;
802 break;
803
804 case CdlDemute:
805 SetResultSize(1);
806 cdr.StatP |= STATUS_ROTATING;
807 cdr.Result[0] = cdr.StatP;
808 cdr.Stat = Acknowledge;
809 break;
810
811 case CdlSetfilter:
812 SetResultSize(1);
813 cdr.StatP |= STATUS_ROTATING;
814 cdr.Result[0] = cdr.StatP;
815 cdr.Stat = Acknowledge;
816 break;
817
818 case CdlSetmode:
819 SetResultSize(1);
820 cdr.StatP |= STATUS_ROTATING;
821 cdr.Result[0] = cdr.StatP;
822 cdr.Stat = Acknowledge;
823 break;
824
825 case CdlGetmode:
826 SetResultSize(6);
827 cdr.StatP |= STATUS_ROTATING;
828 cdr.Result[0] = cdr.StatP;
829 cdr.Result[1] = cdr.Mode;
830 cdr.Result[2] = cdr.File;
831 cdr.Result[3] = cdr.Channel;
832 cdr.Result[4] = 0;
833 cdr.Result[5] = 0;
834 cdr.Stat = Acknowledge;
835 break;
836
837 case CdlGetlocL:
838 SetResultSize(8);
839 for (i = 0; i < 8; i++)
840 cdr.Result[i] = cdr.Transfer[i];
841 cdr.Stat = Acknowledge;
842 break;
843
844 case CdlGetlocP:
845 SetResultSize(8);
846 memcpy(&cdr.Result, &cdr.subq, 8);
847
848 if (!cdr.Play && !cdr.Reading)
849 cdr.Result[1] = 0; // HACK?
850
851 cdr.Stat = Acknowledge;
852 break;
853
854 case CdlGetTN:
855 // 5-Star Racing: don't stop CDDA
856 //
857 // Vib Ribbon: CD swap
858 StopReading();
859
860 cdr.CmdProcess = 0;
861 SetResultSize(3);
862 cdr.StatP |= STATUS_ROTATING;
863 cdr.Result[0] = cdr.StatP;
864 if (CDR_getTN(cdr.ResultTN) == -1) {
865 cdr.Stat = DiskError;
866 cdr.Result[0] |= STATUS_ERROR;
867 } else {
868 cdr.Stat = Acknowledge;
869 cdr.Result[1] = itob(cdr.ResultTN[0]);
870 cdr.Result[2] = itob(cdr.ResultTN[1]);
871 }
872 break;
873
874 case CdlGetTD:
875 cdr.CmdProcess = 0;
876 cdr.Track = btoi(cdr.Param[0]);
877 SetResultSize(4);
878 cdr.StatP |= STATUS_ROTATING;
879 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
880 cdr.Stat = DiskError;
881 cdr.Result[0] |= STATUS_ERROR;
882 } else {
883 cdr.Stat = Acknowledge;
884 cdr.Result[0] = cdr.StatP;
885 cdr.Result[1] = itob(cdr.ResultTD[2]);
886 cdr.Result[2] = itob(cdr.ResultTD[1]);
887 cdr.Result[3] = itob(cdr.ResultTD[0]);
888 }
889 break;
890
891 case CdlSeekL:
892 case CdlSeekP:
893 SetResultSize(1);
894 cdr.StatP |= STATUS_ROTATING;
895 cdr.Result[0] = cdr.StatP;
896 cdr.StatP |= STATUS_SEEK;
897 cdr.Stat = Acknowledge;
898
899 /*
900 Crusaders of Might and Magic = 0.5x-4x
901 - fix cutscene speech start
902
903 Eggs of Steel = 2x-?
904 - fix new game
905
906 Medievil = ?-4x
907 - fix cutscene speech
908
909 Rockman X5 = 0.5-4x
910 - fix capcom logo
911 */
912 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
913 cdr.Seeked = SEEK_PENDING;
914 break;
915
916 case CdlTest:
917 cdr.Stat = Acknowledge;
918 switch (cdr.Param[0]) {
919 case 0x20: // System Controller ROM Version
920 SetResultSize(4);
921 memcpy(cdr.Result, Test20, 4);
922 break;
923 case 0x22:
924 SetResultSize(8);
925 memcpy(cdr.Result, Test22, 4);
926 break;
927 case 0x23: case 0x24:
928 SetResultSize(8);
929 memcpy(cdr.Result, Test23, 4);
930 break;
931 }
932 break;
933
934 case CdlID:
935 SetResultSize(1);
936 cdr.StatP |= STATUS_ROTATING;
937 cdr.Result[0] = cdr.StatP;
938 cdr.Stat = Acknowledge;
939 AddIrqQueue(CdlID + 0x20, 0x800);
940 break;
941
942 case CdlID + 0x20:
943 SetResultSize(8);
944
945 if (CDR_getStatus(&stat) == -1) {
946 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
947 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
948 }
949 else {
950 if (stat.Type == 2) {
951 // Music CD
952 cdr.Result[0] = 0x08;
953 cdr.Result[1] = 0x10;
954
955 cdr.Result[1] |= 0x80;
956 }
957 else {
958 // Data CD
959 if (CdromId[0] == '\0') {
960 cdr.Result[0] = 0x00;
961 cdr.Result[1] = 0x80;
962 }
963 else {
964 cdr.Result[0] = 0x08;
965 cdr.Result[1] = 0x00;
966 }
967 }
968 }
969
970 cdr.Result[2] = 0x00;
971 cdr.Result[3] = 0x00;
972 strncpy((char *)&cdr.Result[4], "PCSX", 4);
973 cdr.Stat = Complete;
974 break;
975
976 case CdlReset:
977 SetResultSize(1);
978 cdr.StatP = STATUS_ROTATING;
979 cdr.Result[0] = cdr.StatP;
980 cdr.Stat = Acknowledge;
981 break;
982
983 case CdlReadT:
984 SetResultSize(1);
985 cdr.StatP |= STATUS_ROTATING;
986 cdr.Result[0] = cdr.StatP;
987 cdr.Stat = Acknowledge;
988 AddIrqQueue(CdlReadT + 0x20, 0x800);
989 break;
990
991 case CdlReadT + 0x20:
992 SetResultSize(1);
993 cdr.StatP |= STATUS_ROTATING;
994 cdr.Result[0] = cdr.StatP;
995 cdr.Stat = Complete;
996 break;
997
998 case CdlReadToc:
999 SetResultSize(1);
1000 cdr.StatP |= STATUS_ROTATING;
1001 cdr.Result[0] = cdr.StatP;
1002 cdr.Stat = Acknowledge;
1003 AddIrqQueue(CdlReadToc + 0x20, 0x800);
1004 break;
1005
1006 case CdlReadToc + 0x20:
1007 SetResultSize(1);
1008 cdr.StatP |= STATUS_ROTATING;
1009 cdr.Result[0] = cdr.StatP;
1010 cdr.Stat = Complete;
1011 break;
1012
1013 case CdlReadN:
1014 case CdlReadS:
1015 if (!cdr.Reading) return;
1016
1017 // Fighting Force 2 - update subq time immediately
1018 // - fixes new game
1019 Find_CurTrack(cdr.SetSector);
1020 ReadTrack(cdr.SetSector);
1021
1022
1023 // Crusaders of Might and Magic - update getlocl now
1024 // - fixes cutscene speech
1025 {
1026 u8 *buf = CDR_getBuffer();
1027 if (buf != NULL)
1028 memcpy(cdr.Transfer, buf, 8);
1029 }
1030
1031 /*
1032 Duke Nukem: Land of the Babes - seek then delay read for one frame
1033 - fixes cutscenes
1034 C-12 - Final Resistance - doesn't like seek
1035 */
1036
1037 if (cdr.Seeked != SEEK_DONE) {
1038 cdr.StatP |= STATUS_SEEK;
1039 cdr.StatP &= ~STATUS_READ;
1040
1041 // Crusaders of Might and Magic - use short time
1042 // - fix cutscene speech (startup)
1043
1044 // ??? - use more accurate seek time later
1045 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1046 } else {
1047 cdr.StatP |= STATUS_READ;
1048 cdr.StatP &= ~STATUS_SEEK;
1049
1050 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1051 }
1052
1053 SetResultSize(1);
1054 cdr.StatP |= STATUS_ROTATING;
1055 cdr.Result[0] = cdr.StatP;
1056 cdr.Stat = Acknowledge;
1057 break;
1058
1059 default:
1060 cdr.Stat = Complete;
1061 break;
1062 }
1063
1064 Check_Shell( Irq );
1065
1066 cdr.ParamC = 0;
1067
1068 setIrq();
1069
1070#ifdef CDR_LOG_CMD_IRQ
1071 SysPrintf("cdrInterrupt() Log: CDR Interrupt IRQ %d %02x: ",
1072 cdr.Stat != NoIntr && cdr.Reg2 != 0x18, Irq);
1073 for (i = 0; i < cdr.ResultC; i++)
1074 SysPrintf("%02x ", cdr.Result[i]);
1075 SysPrintf("\n");
1076#endif
1077}
1078
1079void cdrReadInterrupt() {
1080 u8 *buf;
1081
1082 if (!cdr.Reading)
1083 return;
1084
1085 if (cdr.Irq || cdr.Stat) {
1086 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1087 CDREAD_INT(0x1000);
1088 return;
1089 }
1090
1091 cdr.OCUP = 1;
1092 SetResultSize(1);
1093 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1094 cdr.StatP &= ~STATUS_SEEK;
1095 cdr.Result[0] = cdr.StatP;
1096 cdr.Seeked = SEEK_DONE;
1097
1098 ReadTrack(cdr.SetSector);
1099
1100 buf = CDR_getBuffer();
1101 if (buf == NULL)
1102 cdr.RErr = -1;
1103
1104 if (cdr.RErr == -1) {
1105 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1106 memset(cdr.Transfer, 0, DATA_SIZE);
1107 cdr.Stat = DiskError;
1108 cdr.Result[0] |= STATUS_ERROR;
1109 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1110 return;
1111 }
1112
1113 memcpy(cdr.Transfer, buf, DATA_SIZE);
1114 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1115
1116
1117 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1118
1119 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1120 // Firemen 2: Multi-XA files - briefings, cutscenes
1121 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1122 cdr.File = cdr.Transfer[4 + 0];
1123 cdr.Channel = cdr.Transfer[4 + 1];
1124 }
1125
1126 if ((cdr.Transfer[4 + 2] & 0x4) &&
1127 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1128 (cdr.Transfer[4 + 0] == cdr.File)) {
1129 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1130
1131 if (!ret) {
1132 // only handle attenuator basic channel switch for now
1133 if (cdr.Xa.stereo) {
1134 int i;
1135 if ((cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1136 && !(cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1137 {
1138 for (i = 0; i < cdr.Xa.nsamples; i++)
1139 cdr.Xa.pcm[i*2 + 1] = cdr.Xa.pcm[i*2];
1140 }
1141 else if (!(cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1142 && (cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1143 {
1144 for (i = 0; i < cdr.Xa.nsamples; i++)
1145 cdr.Xa.pcm[i*2] = cdr.Xa.pcm[i*2 + 1];
1146 }
1147 }
1148
1149 SPU_playADPCMchannel(&cdr.Xa);
1150 cdr.FirstSector = 0;
1151
1152#if 0
1153 // Crash Team Racing: music, speech
1154 // - done using cdda decoded buffer (spu irq)
1155 // - don't do here
1156
1157 // signal ADPCM data ready
1158 setIrq();
1159#endif
1160 }
1161 else cdr.FirstSector = -1;
1162 }
1163 }
1164
1165 cdr.SetSector[2]++;
1166 if (cdr.SetSector[2] == 75) {
1167 cdr.SetSector[2] = 0;
1168 cdr.SetSector[1]++;
1169 if (cdr.SetSector[1] == 60) {
1170 cdr.SetSector[1] = 0;
1171 cdr.SetSector[0]++;
1172 }
1173 }
1174
1175 cdr.Readed = 0;
1176
1177 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1178
1179 /*
1180 Croc 2: $40 - only FORM1 (*)
1181 Judge Dredd: $C8 - only FORM1 (*)
1182 Sim Theme Park - no adpcm at all (zero)
1183 */
1184
1185 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1186 cdr.Stat = DataReady;
1187 setIrq();
1188 }
1189
1190 // update for CdlGetlocP
1191 ReadTrack(cdr.SetSector);
1192
1193 Check_Shell(0);
1194}
1195
1196/*
1197cdrRead0:
1198 bit 0,1 - mode
1199 bit 2 - unknown
1200 bit 3 - unknown
1201 bit 4 - unknown
1202 bit 5 - 1 result ready
1203 bit 6 - 1 dma ready
1204 bit 7 - 1 command being processed
1205*/
1206
1207unsigned char cdrRead0(void) {
1208 if (cdr.ResultReady)
1209 cdr.Ctrl |= 0x20;
1210 else
1211 cdr.Ctrl &= ~0x20;
1212
1213 if (cdr.OCUP)
1214 cdr.Ctrl |= 0x40;
1215// else
1216// cdr.Ctrl &= ~0x40;
1217
1218 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1219 cdr.Ctrl |= 0x18;
1220
1221 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1222
1223 return psxHu8(0x1800) = cdr.Ctrl;
1224}
1225
1226void cdrWrite0(unsigned char rt) {
1227 CDR_LOG_IO("cdr w0: %02x\n", rt);
1228
1229 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1230}
1231
1232unsigned char cdrRead1(void) {
1233 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1234 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1235 else
1236 psxHu8(0x1801) = 0;
1237 cdr.ResultP++;
1238 if (cdr.ResultP == cdr.ResultC)
1239 cdr.ResultReady = 0;
1240
1241 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1242
1243 return psxHu8(0x1801);
1244}
1245
1246void cdrWrite1(unsigned char rt) {
1247 u8 set_loc[3];
1248 int i;
1249
1250 CDR_LOG_IO("cdr w1: %02x\n", rt);
1251
1252 switch (cdr.Ctrl & 3) {
1253 case 0:
1254 break;
1255 case 3:
1256 cdr.AttenuatorRight[1] = rt;
1257 return;
1258 default:
1259 return;
1260 }
1261
1262 cdr.Cmd = rt;
1263 cdr.OCUP = 0;
1264
1265#ifdef CDR_LOG_CMD_IRQ
1266 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1267 if (cdr.ParamC) {
1268 SysPrintf(" Param[%d] = {", cdr.ParamC);
1269 for (i = 0; i < cdr.ParamC; i++)
1270 SysPrintf(" %x,", cdr.Param[i]);
1271 SysPrintf("}\n");
1272 } else {
1273 SysPrintf("\n");
1274 }
1275#endif
1276
1277 cdr.ResultReady = 0;
1278 cdr.Ctrl |= 0x80;
1279 // cdr.Stat = NoIntr;
1280 AddIrqQueue(cdr.Cmd, 0x800);
1281
1282 switch (cdr.Cmd) {
1283 case CdlSync:
1284 case CdlNop:
1285 case CdlForward:
1286 case CdlBackward:
1287 case CdlReadT:
1288 case CdlTest:
1289 case CdlID:
1290 case CdlReadToc:
1291 case CdlGetmode:
1292 case CdlGetlocL:
1293 case CdlGetlocP:
1294 case CdlGetTD:
1295 break;
1296
1297 case CdlSetloc:
1298 StopReading();
1299 for (i = 0; i < 3; i++)
1300 set_loc[i] = btoi(cdr.Param[i]);
1301
1302 // FIXME: clean up this SetSector/SetSectorPlay mess,
1303 // there should be single var tracking current sector pos
1304 if (cdr.Play)
1305 i = msf2sec(cdr.SetSectorPlay);
1306 else
1307 i = msf2sec(cdr.SetSector);
1308 i = abs(i - msf2sec(set_loc));
1309 if (i > 16)
1310 cdr.Seeked = SEEK_PENDING;
1311
1312 memcpy(cdr.SetSector, set_loc, 3);
1313 cdr.SetSector[3] = 0;
1314 break;
1315
1316 case CdlPlay:
1317 // Vib Ribbon: try same track again
1318 StopCdda();
1319
1320#if 0
1321 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1322 if (CDR_getTN(cdr.ResultTN) != -1) {
1323 if (cdr.CurTrack > cdr.ResultTN[1])
1324 cdr.CurTrack = cdr.ResultTN[1];
1325 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1326 int tmp = cdr.ResultTD[2];
1327 cdr.ResultTD[2] = cdr.ResultTD[0];
1328 cdr.ResultTD[0] = tmp;
1329 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1330 }
1331 }
1332 }
1333#endif
1334 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1335 // - fixes ribbon timing + music CD mode
1336 //TODO?
1337 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1338
1339 cdr.Play = TRUE;
1340
1341 cdr.StatP |= STATUS_SEEK;
1342 cdr.StatP &= ~STATUS_ROTATING;
1343 break;
1344
1345 case CdlReadN:
1346 StopReading();
1347 cdr.Reading = 1;
1348 cdr.FirstSector = 1;
1349 cdr.Readed = 0xff;
1350 break;
1351
1352 case CdlStandby:
1353 StopCdda();
1354 StopReading();
1355 break;
1356
1357 case CdlStop:
1358 // GameShark CD Player: Reset CDDA to track start
1359 if (cdr.Play) {
1360 // grab time for current track
1361 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1362
1363 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1364 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1365 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1366 }
1367
1368 StopCdda();
1369 StopReading();
1370 break;
1371
1372 case CdlPause:
1373 /*
1374 GameShark CD Player: save time for resume
1375
1376 Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1377 */
1378
1379 StopCdda();
1380 StopReading();
1381 break;
1382
1383 case CdlReset:
1384 case CdlInit:
1385 cdr.Seeked = SEEK_DONE;
1386 StopCdda();
1387 StopReading();
1388 break;
1389
1390 case CdlMute:
1391 cdr.Muted = TRUE;
1392 // Duke Nukem - Time to Kill
1393 // - do not directly set cd-xa volume
1394 //SPU_writeRegister( H_CDLeft, 0x0000 );
1395 //SPU_writeRegister( H_CDRight, 0x0000 );
1396 break;
1397
1398 case CdlDemute:
1399 cdr.Muted = FALSE;
1400
1401 // Duke Nukem - Time to Kill
1402 // - do not directly set cd-xa volume
1403 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1404 //SPU_writeRegister( H_CDRight, 0x7f00 );
1405 break;
1406
1407 case CdlSetfilter:
1408 cdr.File = cdr.Param[0];
1409 cdr.Channel = cdr.Param[1];
1410 break;
1411
1412 case CdlSetmode:
1413 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1414
1415 cdr.Mode = cdr.Param[0];
1416
1417 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1418 // - fixes choppy movie sound
1419 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1420 StopCdda();
1421 break;
1422
1423 case CdlGetTN:
1424 //AddIrqQueue(cdr.Cmd, 0x800);
1425
1426 // GameShark CDX CD Player: very long time
1427 AddIrqQueue(cdr.Cmd, 0x100000);
1428 break;
1429
1430 case CdlSeekL:
1431 case CdlSeekP:
1432 // Tomb Raider 2 - reset cdda
1433 StopCdda();
1434 StopReading();
1435 break;
1436
1437 case CdlReadS:
1438 StopReading();
1439 cdr.Reading = 2;
1440 cdr.FirstSector = 1;
1441 cdr.Readed = 0xff;
1442 break;
1443
1444 default:
1445 cdr.ParamC = 0;
1446 CDR_LOG_I("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1447 return;
1448 }
1449}
1450
1451unsigned char cdrRead2(void) {
1452 unsigned char ret;
1453
1454 if (cdr.Readed == 0) {
1455 ret = 0;
1456 } else {
1457 ret = *pTransfer++;
1458 }
1459
1460 CDR_LOG_IO("cdr r2: %02x\n", ret);
1461 return ret;
1462}
1463
1464void cdrWrite2(unsigned char rt) {
1465 CDR_LOG_IO("cdr w2: %02x\n", rt);
1466
1467 switch (cdr.Ctrl & 3) {
1468 case 0:
1469 if (cdr.ParamC < 8) // FIXME: size and wrapping
1470 cdr.Param[cdr.ParamC++] = rt;
1471 return;
1472 case 1:
1473 cdr.Reg2 = rt;
1474 setIrq();
1475 return;
1476 case 2:
1477 cdr.AttenuatorLeft[0] = rt;
1478 return;
1479 case 3:
1480 cdr.AttenuatorRight[0] = rt;
1481 return;
1482 }
1483}
1484
1485unsigned char cdrRead3(void) {
1486 if (cdr.Ctrl & 0x1)
1487 psxHu8(0x1803) = cdr.Stat | 0xE0;
1488 else
1489 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1490
1491 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1492 return psxHu8(0x1803);
1493}
1494
1495void cdrWrite3(unsigned char rt) {
1496 CDR_LOG_IO("cdr w3: %02x\n", rt);
1497
1498 switch (cdr.Ctrl & 3) {
1499 case 0:
1500 break; // transfer
1501 case 1:
1502 cdr.Stat &= ~rt;
1503
1504 if (rt & 0x40)
1505 cdr.ParamC = 0;
1506 return;
1507 case 2:
1508 cdr.AttenuatorLeft[1] = rt;
1509 return;
1510 case 3:
1511 if (rt == 0x20)
1512 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1513 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1514 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1515 return;
1516 }
1517
1518 if ((rt & 0x80) && cdr.Readed == 0) {
1519 cdr.Readed = 1;
1520 pTransfer = cdr.Transfer;
1521
1522 switch (cdr.Mode & 0x30) {
1523 case MODE_SIZE_2328:
1524 case 0x00:
1525 pTransfer += 12;
1526 break;
1527
1528 case MODE_SIZE_2340:
1529 pTransfer += 0;
1530 break;
1531
1532 default:
1533 break;
1534 }
1535 }
1536}
1537
1538void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1539 u32 cdsize;
1540 int size;
1541 u8 *ptr;
1542
1543 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1544
1545 switch (chcr) {
1546 case 0x11000000:
1547 case 0x11400100:
1548 if (cdr.Readed == 0) {
1549 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1550 break;
1551 }
1552
1553 cdsize = (bcr & 0xffff) * 4;
1554
1555 // Ape Escape: bcr = 0001 / 0000
1556 // - fix boot
1557 if( cdsize == 0 )
1558 {
1559 switch (cdr.Mode & 0x30) {
1560 case 0x00: cdsize = 2048; break;
1561 case MODE_SIZE_2328: cdsize = 2328; break;
1562 case MODE_SIZE_2340: cdsize = 2340; break;
1563 }
1564 }
1565
1566
1567 ptr = (u8 *)PSXM(madr);
1568 if (ptr == NULL) {
1569 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1570 break;
1571 }
1572
1573 /*
1574 GS CDX: Enhancement CD crash
1575 - Setloc 0:0:0
1576 - CdlPlay
1577 - Spams DMA3 and gets buffer overrun
1578 */
1579 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1580 if (size > cdsize)
1581 size = cdsize;
1582 if (size > 0)
1583 {
1584 memcpy(ptr, pTransfer, size);
1585 }
1586
1587 psxCpu->Clear(madr, cdsize / 4);
1588 pTransfer += cdsize;
1589
1590
1591 // burst vs normal
1592 if( chcr == 0x11400100 ) {
1593 CDRDMA_INT( (cdsize/4) / 4 );
1594 }
1595 else if( chcr == 0x11000000 ) {
1596 CDRDMA_INT( (cdsize/4) * 1 );
1597 }
1598 return;
1599
1600 default:
1601 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1602 break;
1603 }
1604
1605 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1606 DMA_INTERRUPT(3);
1607}
1608
1609void cdrDmaInterrupt()
1610{
1611 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1612 {
1613 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1614 DMA_INTERRUPT(3);
1615 }
1616}
1617
1618static void getCdInfo(void)
1619{
1620 u8 tmp;
1621
1622 CDR_getTN(cdr.ResultTN);
1623 CDR_getTD(0, cdr.SetSectorEnd);
1624 tmp = cdr.SetSectorEnd[0];
1625 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1626 cdr.SetSectorEnd[2] = tmp;
1627}
1628
1629void cdrReset() {
1630 memset(&cdr, 0, sizeof(cdr));
1631 cdr.CurTrack = 1;
1632 cdr.File = 1;
1633 cdr.Channel = 1;
1634 pTransfer = cdr.Transfer;
1635
1636 // BIOS player - default values
1637 cdr.AttenuatorLeft[0] = 0x80;
1638 cdr.AttenuatorLeft[1] = 0x00;
1639 cdr.AttenuatorRight[0] = 0x00;
1640 cdr.AttenuatorRight[1] = 0x80;
1641
1642 getCdInfo();
1643}
1644
1645int cdrFreeze(void *f, int Mode) {
1646 u32 tmp;
1647 u8 tmpp[3];
1648
1649 if (Mode == 0 && !Config.Cdda)
1650 CDR_stop();
1651
1652 cdr.freeze_ver = 0x63647201;
1653 gzfreeze(&cdr, sizeof(cdr));
1654
1655 if (Mode == 1) {
1656 cdr.ParamP = cdr.ParamC;
1657 tmp = pTransfer - cdr.Transfer;
1658 }
1659
1660 gzfreeze(&tmp, sizeof(tmp));
1661
1662 if (Mode == 0) {
1663 getCdInfo();
1664
1665 pTransfer = cdr.Transfer + tmp;
1666
1667 // read right sub data
1668 memcpy(tmpp, cdr.Prev, 3);
1669 cdr.Prev[0]++;
1670 ReadTrack(tmpp);
1671
1672 if (cdr.Play) {
1673 Find_CurTrack(cdr.SetSectorPlay);
1674 if (!Config.Cdda)
1675 CDR_play(cdr.SetSectorPlay);
1676 }
1677
1678 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1679 // old versions did not latch Reg2, have to fixup..
1680 if (cdr.Reg2 == 0) {
1681 SysPrintf("cdrom: fixing up old savestate\n");
1682 cdr.Reg2 = 7;
1683 }
1684 }
1685 }
1686
1687 return 0;
1688}
1689
1690void LidInterrupt() {
1691 cdr.LidCheck = 0x20; // start checker
1692
1693 getCdInfo();
1694
1695 StopCdda();
1696 CDRLID_INT( cdReadTime * 3 );
1697
1698 // generate interrupt if none active - open or close
1699 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
1700 cdr.Ctrl |= 0x80;
1701 cdr.Stat = NoIntr;
1702 AddIrqQueue(CdlNop, 0x800);
1703 }
1704}
ARM optimized PCSX fork