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cdrom: cleanup various hacks
[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
81/* don't set 255, it's reserved */
82
83char *CmdName[0x100]= {
84 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
85 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
86 "CdlStop", "CdlPause", "CdlInit", "CdlMute",
87 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
88 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
89 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
90 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
91 "CdlReset", NULL, "CDlReadToc", NULL
92};
93
94unsigned char Test04[] = { 0 };
95unsigned char Test05[] = { 0 };
96unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
97unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
98unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
99
100// cdr.Stat:
101#define NoIntr 0
102#define DataReady 1
103#define Complete 2
104#define Acknowledge 3
105#define DataEnd 4
106#define DiskError 5
107
108/* Modes flags */
109#define MODE_SPEED (1<<7) // 0x80
110#define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
111#define MODE_SIZE_2340 (1<<5) // 0x20
112#define MODE_SIZE_2328 (1<<4) // 0x10
113#define MODE_SF (1<<3) // 0x08 channel on/off
114#define MODE_REPORT (1<<2) // 0x04
115#define MODE_AUTOPAUSE (1<<1) // 0x02
116#define MODE_CDDA (1<<0) // 0x01
117
118/* Status flags */
119#define STATUS_PLAY (1<<7) // 0x80
120#define STATUS_SEEK (1<<6) // 0x40
121#define STATUS_READ (1<<5) // 0x20
122#define STATUS_SHELLOPEN (1<<4) // 0x10
123#define STATUS_UNKNOWN3 (1<<3) // 0x08
124#define STATUS_UNKNOWN2 (1<<2) // 0x04
125#define STATUS_ROTATING (1<<1) // 0x02
126#define STATUS_ERROR (1<<0) // 0x01
127
128
129
130// 1x = 75 sectors per second
131// PSXCLK = 1 sec in the ps
132// so (PSXCLK / 75) = cdr read time (linuzappz)
133#define cdReadTime (PSXCLK / 75)
134
135// for cdr.Seeked
136enum seeked_state {
137 SEEK_PENDING = 0,
138 SEEK_DONE = 1,
139 SEEK_DOING_CMD = 2,
140};
141
142static struct CdrStat stat;
143
144static unsigned int msf2sec(u8 *msf) {
145 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
146}
147
148static void sec2msf(unsigned int s, u8 *msf) {
149 msf[0] = s / 75 / 60;
150 s = s - msf[0] * 75 * 60;
151 msf[1] = s / 75;
152 s = s - msf[1] * 75;
153 msf[2] = s;
154}
155
156// cdrInterrupt
157#define CDR_INT(eCycle) { \
158 psxRegs.interrupt |= (1 << PSXINT_CDR); \
159 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
160 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
161 new_dyna_set_event(PSXINT_CDR, eCycle); \
162}
163
164// cdrReadInterrupt
165#define CDREAD_INT(eCycle) { \
166 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
167 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
168 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
169 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
170}
171
172// cdrLidSeekInterrupt
173#define CDRLID_INT(eCycle) { \
174 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
175 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
176 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
177 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
178}
179
180// cdrPlayInterrupt
181#define CDRMISC_INT(eCycle) { \
182 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
183 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
184 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
185 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
186}
187
188#define StopReading() { \
189 if (cdr.Reading) { \
190 cdr.Reading = 0; \
191 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
192 } \
193 cdr.StatP &= ~STATUS_READ;\
194}
195
196#define StopCdda() { \
197 if (cdr.Play) { \
198 if (!Config.Cdda) CDR_stop(); \
199 cdr.StatP &= ~STATUS_PLAY; \
200 cdr.Play = FALSE; \
201 cdr.FastForward = 0; \
202 cdr.FastBackward = 0; \
203 /*SPU_registerCallback( SPUirq );*/ \
204 } \
205}
206
207#define SetResultSize(size) { \
208 cdr.ResultP = 0; \
209 cdr.ResultC = size; \
210 cdr.ResultReady = 1; \
211}
212
213static void setIrq(void)
214{
215 if (cdr.Stat & cdr.Reg2)
216 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
217}
218
219void cdrLidSeekInterrupt()
220{
221 // turn back on checking
222 if( cdr.LidCheck == 0x10 )
223 {
224 cdr.LidCheck = 0;
225 }
226
227 // official lid close
228 else if( cdr.LidCheck == 0x30 )
229 {
230 // GS CDX 3.3: $13
231 cdr.StatP |= STATUS_ROTATING;
232
233
234 // GS CDX 3.3 - ~50 getlocp tries
235 CDRLID_INT( cdReadTime * 3 );
236 cdr.LidCheck = 0x40;
237 }
238
239 // turn off ready
240 else if( cdr.LidCheck == 0x40 )
241 {
242 // GS CDX 3.3: $01
243 cdr.StatP &= ~STATUS_SHELLOPEN;
244 cdr.StatP &= ~STATUS_ROTATING;
245
246
247 // GS CDX 3.3 - ~50 getlocp tries
248 CDRLID_INT( cdReadTime * 3 );
249 cdr.LidCheck = 0x50;
250 }
251
252 // now seek
253 else if( cdr.LidCheck == 0x50 )
254 {
255 // GameShark Lite: Start seeking ($42)
256 cdr.StatP |= STATUS_SEEK;
257 cdr.StatP |= STATUS_ROTATING;
258 cdr.StatP &= ~STATUS_ERROR;
259
260
261 CDRLID_INT( cdReadTime * 3 );
262 cdr.LidCheck = 0x60;
263 }
264
265 // done = cd ready
266 else if( cdr.LidCheck == 0x60 )
267 {
268 // GameShark Lite: Seek detection done ($02)
269 cdr.StatP &= ~STATUS_SEEK;
270
271 cdr.LidCheck = 0;
272 }
273}
274
275static void Check_Shell( int Irq )
276{
277 // check case open/close
278 if (cdr.LidCheck > 0)
279 {
280 CDR_LOG( "LidCheck\n" );
281
282 // $20 = check lid state
283 if( cdr.LidCheck == 0x20 )
284 {
285 u32 i;
286
287 i = stat.Status;
288 if (CDR_getStatus(&stat) != -1)
289 {
290 // BIOS hangs + BIOS error messages
291 //if (stat.Type == 0xff)
292 //cdr.Stat = DiskError;
293
294 // case now open
295 if (stat.Status & STATUS_SHELLOPEN)
296 {
297 // Vib Ribbon: pre-CD swap
298 StopCdda();
299
300
301 // GameShark Lite: Death if DiskError happens
302 //
303 // Vib Ribbon: Needs DiskError for CD swap
304
305 if (Irq != CdlNop)
306 {
307 cdr.Stat = DiskError;
308
309 cdr.StatP |= STATUS_ERROR;
310 cdr.Result[0] |= STATUS_ERROR;
311 }
312
313 // GameShark Lite: Wants -exactly- $10
314 cdr.StatP |= STATUS_SHELLOPEN;
315 cdr.StatP &= ~STATUS_ROTATING;
316
317
318 CDRLID_INT( cdReadTime * 3 );
319 cdr.LidCheck = 0x10;
320
321
322 // GS CDX 3.3 = $11
323 }
324
325 // case just closed
326 else if ( i & STATUS_SHELLOPEN )
327 {
328 cdr.StatP |= STATUS_ROTATING;
329
330 CheckCdrom();
331
332
333 if( cdr.Stat == NoIntr )
334 cdr.Stat = Acknowledge;
335
336 setIrq();
337
338 // begin close-seek-ready cycle
339 CDRLID_INT( cdReadTime * 3 );
340 cdr.LidCheck = 0x30;
341
342
343 // GameShark Lite: Wants -exactly- $42, then $02
344 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
345 }
346
347 // case still closed - wait for recheck
348 else
349 {
350 CDRLID_INT( cdReadTime * 3 );
351 cdr.LidCheck = 0x10;
352 }
353 }
354 }
355
356
357 // GS CDX: clear all values but #1,#2
358 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
359 {
360 SetResultSize(16);
361 memset( cdr.Result, 0, 16 );
362
363 cdr.Result[0] = cdr.StatP;
364
365
366 // GS CDX: special return value
367 if( cdr.StatP & STATUS_SHELLOPEN )
368 {
369 cdr.Result[1] = 0x80;
370 }
371
372
373 if( cdr.Stat == NoIntr )
374 cdr.Stat = Acknowledge;
375
376 setIrq();
377 }
378 }
379}
380
381void Find_CurTrack() {
382 cdr.CurTrack = 0;
383
384 if (CDR_getTN(cdr.ResultTN) != -1) {
385 int lcv;
386
387 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
388 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
389 u32 sect1, sect2;
390
391 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
392 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
393 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
394 cdr.CurTrack );
395
396 // find next track boundary - only need m:s accuracy
397 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
398 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
399
400 // Twisted Metal 4 - psx cdda pregap (2-sec)
401 // - fix in-game music
402 sect2 -= 75 * 2;
403
404 if( sect1 >= sect2 ) {
405 cdr.CurTrack++;
406 continue;
407 }
408 }
409
410 break;
411 }
412 }
413}
414
415static void ReadTrack( u8 *time ) {
416 cdr.Prev[0] = itob( time[0] );
417 cdr.Prev[1] = itob( time[1] );
418 cdr.Prev[2] = itob( time[2] );
419
420 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
421 cdr.RErr = CDR_readTrack(cdr.Prev);
422}
423
424
425static void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
426 if (cdr.Irq != 0 && cdr.Irq != 0xff)
427 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
428
429 cdr.Irq = irq;
430 cdr.eCycle = ecycle;
431
432 CDR_INT(ecycle);
433}
434
435
436void Set_Track()
437{
438 if (CDR_getTN(cdr.ResultTN) != -1) {
439 int lcv;
440
441 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
442 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
443 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
444 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
445 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
446 cdr.CurTrack );
447
448 // check if time matches track start (only need min, sec accuracy)
449 // - m:s:f vs f:s:m
450 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
451 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
452 // skip pregap frames
453 if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
454 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
455
456 break;
457 }
458 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
459 break;
460 }
461 }
462 }
463}
464
465
466static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
467static void Create_Fake_Subq()
468{
469 u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
470 int diff;
471
472 if (CDR_getTN(cdr.ResultTN) == -1) return;
473 if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
474 pregap = 150;
475 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
476 } else {
477 // last track - cd size
478 pregap = 0;
479 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
480 }
481
482 if( cdr.Play == TRUE ) {
483 temp_cur[0] = cdr.SetSectorPlay[0];
484 temp_cur[1] = cdr.SetSectorPlay[1];
485 temp_cur[2] = cdr.SetSectorPlay[2];
486 } else {
487 temp_cur[0] = btoi( cdr.Prev[0] );
488 temp_cur[1] = btoi( cdr.Prev[1] );
489 temp_cur[2] = btoi( cdr.Prev[2] );
490 }
491
492 fake_subq_real[0] = temp_cur[0];
493 fake_subq_real[1] = temp_cur[1];
494 fake_subq_real[2] = temp_cur[2];
495
496 temp_next[0] = cdr.ResultTD[2];
497 temp_next[1] = cdr.ResultTD[1];
498 temp_next[2] = cdr.ResultTD[0];
499
500
501 // flag- next track
502 if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
503 fake_subq_change = 1;
504
505 cdr.CurTrack++;
506
507 // end cd
508 if( pregap == 0 ) StopCdda();
509 }
510
511 //////////////////////////////////////////////////
512 //////////////////////////////////////////////////
513
514 // repair
515 if( cdr.CurTrack <= cdr.ResultTN[1] ) {
516 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
517 } else {
518 // last track - cd size
519 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
520 }
521
522 temp_start[0] = cdr.ResultTD[2];
523 temp_start[1] = cdr.ResultTD[1];
524 temp_start[2] = cdr.ResultTD[0];
525
526
527 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
528 temp_cur[0], temp_cur[1], temp_cur[2],
529 temp_start[0], temp_start[1], temp_start[2],
530 temp_next[0], temp_next[1], temp_next[2]);
531
532
533
534 // local time - pregap / real
535 diff = msf2sec(temp_cur) - msf2sec( temp_start );
536 if( diff < 0 ) {
537 fake_subq_index = 0;
538
539 sec2msf( -diff, fake_subq_local );
540 } else {
541 fake_subq_index = 1;
542
543 sec2msf( diff, fake_subq_local );
544 }
545}
546
547
548static void cdrPlayInterrupt_Autopause()
549{
550 struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
551 int track_changed = 0;
552 if (subq != NULL ) {
553 // update subq
554 ReadTrack( cdr.SetSectorPlay );
555
556 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
557 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
558
559 /*
560 CDDA Autopause
561
562 Silhouette Mirage ($3)
563 Tomb Raider 1 ($7)
564 */
565
566 // .. + 1 is probably wrong, but deals with corrupted subq + good checksum
567 // (how does real thing handle those?)
568 if( cdr.CurTrack + 1 == btoi( subq->TrackNumber ) )
569 track_changed = 1;
570 } else {
571 Create_Fake_Subq();
572 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
573 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
574
575 track_changed = fake_subq_change;
576 fake_subq_change = 0;
577 }
578
579 if ((cdr.Mode & MODE_AUTOPAUSE) && track_changed) {
580 CDR_LOG( "CDDA STOP\n" );
581
582 // Magic the Gathering
583 // - looping territory cdda
584
585 // ...?
586 //cdr.ResultReady = 1;
587 //cdr.Stat = DataReady;
588 cdr.Stat = DataEnd;
589 setIrq();
590
591 StopCdda();
592 }
593 else if (cdr.Mode & MODE_REPORT) {
594 if (subq != NULL) {
595 CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
596 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
597
598 // breaks when .sub doesn't have index 0 for some reason (bad rip?)
599 //cdr.CurTrack = btoi( subq->TrackNumber );
600
601 if (subq->AbsoluteAddress[2] & 0xf)
602 return;
603
604 cdr.Result[0] = cdr.StatP;
605 // BIOS CD Player: data already BCD format
606 cdr.Result[1] = subq->TrackNumber;
607 cdr.Result[2] = subq->IndexNumber;
608
609 cdr.Result[3] = subq->AbsoluteAddress[0];
610 cdr.Result[4] = subq->AbsoluteAddress[1];
611 cdr.Result[5] = subq->AbsoluteAddress[2];
612 } else {
613 CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
614 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
615
616 if (fake_subq_real[2] & 0xf)
617 return;
618
619 cdr.Result[0] = cdr.StatP;
620 // track # / index #
621 cdr.Result[1] = itob(cdr.CurTrack);
622 cdr.Result[2] = itob(fake_subq_index);
623 // absolute
624 cdr.Result[3] = itob( fake_subq_real[0] );
625 cdr.Result[4] = itob( fake_subq_real[1] );
626 cdr.Result[5] = itob( fake_subq_real[2] );
627 }
628
629 // Rayman: Logo freeze (resultready + dataready)
630 cdr.ResultReady = 1;
631 cdr.Stat = DataReady;
632
633 SetResultSize(8);
634 setIrq();
635 }
636}
637
638// also handles seek
639void cdrPlayInterrupt()
640{
641 if (cdr.Seeked == SEEK_DOING_CMD) {
642 if (cdr.Stat) {
643 CDR_LOG_I("cdrom: seek stat hack\n");
644 CDRMISC_INT(0x1000);
645 return;
646 }
647 SetResultSize(1);
648 cdr.StatP |= STATUS_ROTATING;
649 cdr.StatP &= ~STATUS_SEEK;
650 cdr.Result[0] = cdr.StatP;
651 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
652 cdr.Stat = Complete;
653 setIrq();
654 }
655
656 cdr.Seeked = SEEK_PENDING;
657 CDRMISC_INT(cdReadTime * 20); // ???
658 return;
659 }
660 else if (cdr.Seeked == SEEK_PENDING) {
661 cdr.Seeked = SEEK_DONE;
662 if (!cdr.Play && !cdr.Reading) {
663 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
664 Find_CurTrack();
665 ReadTrack(cdr.SetSector);
666 }
667 }
668
669 if (!cdr.Play) return;
670
671 CDR_LOG( "CDDA - %d:%d:%d\n",
672 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
673
674 CDRMISC_INT( cdReadTime );
675
676 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
677 cdrPlayInterrupt_Autopause();
678
679 cdr.SetSectorPlay[2]++;
680 if (cdr.SetSectorPlay[2] == 75) {
681 cdr.SetSectorPlay[2] = 0;
682 cdr.SetSectorPlay[1]++;
683 if (cdr.SetSectorPlay[1] == 60) {
684 cdr.SetSectorPlay[1] = 0;
685 cdr.SetSectorPlay[0]++;
686 }
687 }
688
689 //Check_Shell(0);
690}
691
692void cdrInterrupt() {
693 int i;
694 unsigned char Irq = cdr.Irq;
695 struct SubQ *subq;
696
697 // Reschedule IRQ
698 if (cdr.Stat) {
699 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
700 CDR_INT(0x1000);
701 return;
702 }
703
704 cdr.Irq = 0xff;
705 cdr.Ctrl &= ~0x80;
706
707 switch (Irq) {
708 case CdlSync:
709 SetResultSize(1);
710 cdr.StatP |= STATUS_ROTATING;
711 cdr.Result[0] = cdr.StatP;
712 cdr.Stat = Acknowledge;
713 break;
714
715 case CdlNop:
716 SetResultSize(1);
717 cdr.Result[0] = cdr.StatP;
718 cdr.Stat = Acknowledge;
719
720 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
721 break;
722
723 case CdlSetloc:
724 cdr.CmdProcess = 0;
725 SetResultSize(1);
726 cdr.StatP |= STATUS_ROTATING;
727 cdr.Result[0] = cdr.StatP;
728 cdr.Stat = Acknowledge;
729 break;
730
731 case CdlPlay:
732 fake_subq_change = 0;
733
734 if (cdr.Seeked == SEEK_PENDING) {
735 // XXX: wrong, should seek instead..
736 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
737 cdr.Seeked = SEEK_DONE;
738 }
739
740 /*
741 Rayman: detect track changes
742 - fixes logo freeze
743
744 Twisted Metal 2: skip PREGAP + starting accurate SubQ
745 - plays tracks without retry play
746
747 Wild 9: skip PREGAP + starting accurate SubQ
748 - plays tracks without retry play
749 */
750 /* unneeded with correct cdriso?
751 Set_Track();
752 */
753 Find_CurTrack();
754 ReadTrack( cdr.SetSectorPlay );
755
756 // GameShark CD Player: Calls 2x + Play 2x
757 if( cdr.FastBackward || cdr.FastForward ) {
758 if( cdr.FastForward ) cdr.FastForward--;
759 if( cdr.FastBackward ) cdr.FastBackward--;
760
761 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
762 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
763 cdr.SetSectorPlay[0] = stat.Time[0];
764 cdr.SetSectorPlay[1] = stat.Time[1];
765 cdr.SetSectorPlay[2] = stat.Time[2];
766 }
767 }
768 }
769
770
771 if (!Config.Cdda) {
772 // BIOS CD Player
773 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
774
775 // GameShark CD Player: Resume play
776 if( cdr.ParamC == 0 ) {
777 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
778 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
779
780 //CDR_play( cdr.SetSectorPlay );
781 }
782 else
783 {
784 // BIOS CD Player: Resume play
785 if( cdr.Param[0] == 0 ) {
786 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
787 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
788
789 //CDR_play( cdr.SetSectorPlay );
790 }
791 else {
792 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
793 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
794
795 // BIOS CD Player: Allow track replaying
796 StopCdda();
797
798
799 cdr.CurTrack = btoi( cdr.Param[0] );
800
801 if (CDR_getTN(cdr.ResultTN) != -1) {
802 // check last track
803 if (cdr.CurTrack > cdr.ResultTN[1])
804 cdr.CurTrack = cdr.ResultTN[1];
805
806 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
807 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
808 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
809 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
810
811 // reset data
812 //Set_Track();
813 Find_CurTrack();
814 ReadTrack( cdr.SetSectorPlay );
815
816 //CDR_play(cdr.SetSectorPlay);
817 }
818 }
819 }
820 }
821 }
822
823
824 // Vib Ribbon: gameplay checks flag
825 cdr.StatP &= ~STATUS_SEEK;
826
827
828 cdr.CmdProcess = 0;
829 SetResultSize(1);
830 cdr.StatP |= STATUS_ROTATING;
831 cdr.Result[0] = cdr.StatP;
832 cdr.Stat = Acknowledge;
833
834 cdr.StatP |= STATUS_PLAY;
835
836
837 // BIOS player - set flag again
838 cdr.Play = TRUE;
839
840 CDRMISC_INT( cdReadTime );
841 break;
842
843 case CdlForward:
844 cdr.CmdProcess = 0;
845 SetResultSize(1);
846 cdr.StatP |= STATUS_ROTATING;
847 cdr.Result[0] = cdr.StatP;
848 cdr.Stat = Complete;
849
850
851 // GameShark CD Player: Calls 2x + Play 2x
852 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
853 else cdr.FastForward++;
854
855 cdr.FastBackward = 0;
856 break;
857
858 case CdlBackward:
859 cdr.CmdProcess = 0;
860 SetResultSize(1);
861 cdr.StatP |= STATUS_ROTATING;
862 cdr.Result[0] = cdr.StatP;
863 cdr.Stat = Complete;
864
865
866 // GameShark CD Player: Calls 2x + Play 2x
867 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
868 else cdr.FastBackward++;
869
870 cdr.FastForward = 0;
871 break;
872
873 case CdlStandby:
874 cdr.CmdProcess = 0;
875 SetResultSize(1);
876 cdr.StatP |= STATUS_ROTATING;
877 cdr.Result[0] = cdr.StatP;
878 cdr.Stat = Complete;
879 break;
880
881 case CdlStop:
882 cdr.CmdProcess = 0;
883 SetResultSize(1);
884 cdr.StatP &= ~STATUS_ROTATING;
885 cdr.Result[0] = cdr.StatP;
886 cdr.Stat = Complete;
887// cdr.Stat = Acknowledge;
888
889 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
890 break;
891
892 case CdlPause:
893 SetResultSize(1);
894 cdr.Result[0] = cdr.StatP;
895 cdr.Stat = Acknowledge;
896
897 /*
898 Gundam Battle Assault 2: much slower (*)
899 - Fixes boot, gameplay
900
901 Hokuto no Ken 2: slower
902 - Fixes intro + subtitles
903
904 InuYasha - Feudal Fairy Tale: slower
905 - Fixes battles
906 */
907 AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
908 cdr.Ctrl |= 0x80;
909 break;
910
911 case CdlPause + 0x20:
912 SetResultSize(1);
913 cdr.StatP &= ~STATUS_READ;
914 cdr.StatP |= STATUS_ROTATING;
915 cdr.Result[0] = cdr.StatP;
916 cdr.Stat = Complete;
917 break;
918
919 case CdlInit:
920 SetResultSize(1);
921 cdr.StatP = STATUS_ROTATING;
922 cdr.Result[0] = cdr.StatP;
923 cdr.Stat = Acknowledge;
924// if (!cdr.Init) {
925 AddIrqQueue(CdlInit + 0x20, 0x800);
926// }
927 break;
928
929 case CdlInit + 0x20:
930 SetResultSize(1);
931 cdr.Result[0] = cdr.StatP;
932 cdr.Stat = Complete;
933 cdr.Init = 1;
934 break;
935
936 case CdlMute:
937 SetResultSize(1);
938 cdr.StatP |= STATUS_ROTATING;
939 cdr.Result[0] = cdr.StatP;
940 cdr.Stat = Acknowledge;
941 break;
942
943 case CdlDemute:
944 SetResultSize(1);
945 cdr.StatP |= STATUS_ROTATING;
946 cdr.Result[0] = cdr.StatP;
947 cdr.Stat = Acknowledge;
948 break;
949
950 case CdlSetfilter:
951 SetResultSize(1);
952 cdr.StatP |= STATUS_ROTATING;
953 cdr.Result[0] = cdr.StatP;
954 cdr.Stat = Acknowledge;
955 break;
956
957 case CdlSetmode:
958 SetResultSize(1);
959 cdr.StatP |= STATUS_ROTATING;
960 cdr.Result[0] = cdr.StatP;
961 cdr.Stat = Acknowledge;
962 break;
963
964 case CdlGetmode:
965 SetResultSize(6);
966 cdr.StatP |= STATUS_ROTATING;
967 cdr.Result[0] = cdr.StatP;
968 cdr.Result[1] = cdr.Mode;
969 cdr.Result[2] = cdr.File;
970 cdr.Result[3] = cdr.Channel;
971 cdr.Result[4] = 0;
972 cdr.Result[5] = 0;
973 cdr.Stat = Acknowledge;
974 break;
975
976 case CdlGetlocL:
977 SetResultSize(8);
978 for (i = 0; i < 8; i++)
979 cdr.Result[i] = cdr.Transfer[i];
980 cdr.Stat = Acknowledge;
981 break;
982
983 case CdlGetlocP:
984 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
985 SetResultSize(17);
986 memset( cdr.Result, 0, 16 );
987
988 subq = (struct SubQ *)CDR_getBufferSub();
989
990 if (subq != NULL) {
991 if( cdr.Play && (cdr.Mode & MODE_CDDA) && !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
992 // update subq
993 ReadTrack( cdr.SetSectorPlay );
994
995 cdr.Result[0] = subq->TrackNumber;
996 cdr.Result[1] = subq->IndexNumber;
997 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
998 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
999
1000
1001 // subQ integrity check - data only (skip audio)
1002 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
1003 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
1004 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
1005 }
1006 }
1007 } else {
1008 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
1009 Create_Fake_Subq();
1010
1011
1012 // track # / index #
1013 cdr.Result[0] = itob(cdr.CurTrack);
1014 cdr.Result[1] = itob(fake_subq_index);
1015
1016 // local
1017 cdr.Result[2] = itob( fake_subq_local[0] );
1018 cdr.Result[3] = itob( fake_subq_local[1] );
1019 cdr.Result[4] = itob( fake_subq_local[2] );
1020
1021 // absolute
1022 cdr.Result[5] = itob( fake_subq_real[0] );
1023 cdr.Result[6] = itob( fake_subq_real[1] );
1024 cdr.Result[7] = itob( fake_subq_real[2] );
1025 }
1026
1027 // redump.org - wipe time
1028 if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
1029 memset( cdr.Result+2, 0, 6 );
1030 }
1031
1032 cdr.Stat = Acknowledge;
1033 break;
1034
1035 case CdlGetTN:
1036 // 5-Star Racing: don't stop CDDA
1037 //
1038 // Vib Ribbon: CD swap
1039 StopReading();
1040
1041 cdr.CmdProcess = 0;
1042 SetResultSize(3);
1043 cdr.StatP |= STATUS_ROTATING;
1044 cdr.Result[0] = cdr.StatP;
1045 if (CDR_getTN(cdr.ResultTN) == -1) {
1046 cdr.Stat = DiskError;
1047 cdr.Result[0] |= STATUS_ERROR;
1048 } else {
1049 cdr.Stat = Acknowledge;
1050 cdr.Result[1] = itob(cdr.ResultTN[0]);
1051 cdr.Result[2] = itob(cdr.ResultTN[1]);
1052 }
1053 break;
1054
1055 case CdlGetTD:
1056 cdr.CmdProcess = 0;
1057 cdr.Track = btoi(cdr.Param[0]);
1058 SetResultSize(4);
1059 cdr.StatP |= STATUS_ROTATING;
1060 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1061 cdr.Stat = DiskError;
1062 cdr.Result[0] |= STATUS_ERROR;
1063 } else {
1064 cdr.Stat = Acknowledge;
1065 cdr.Result[0] = cdr.StatP;
1066 cdr.Result[1] = itob(cdr.ResultTD[2]);
1067 cdr.Result[2] = itob(cdr.ResultTD[1]);
1068 cdr.Result[3] = itob(cdr.ResultTD[0]);
1069 }
1070 break;
1071
1072 case CdlSeekL:
1073 case CdlSeekP:
1074 SetResultSize(1);
1075 cdr.StatP |= STATUS_ROTATING;
1076 cdr.Result[0] = cdr.StatP;
1077 cdr.StatP |= STATUS_SEEK;
1078 cdr.Stat = Acknowledge;
1079
1080 /*
1081 Crusaders of Might and Magic = 0.5x-4x
1082 - fix cutscene speech start
1083
1084 Eggs of Steel = 2x-?
1085 - fix new game
1086
1087 Medievil = ?-4x
1088 - fix cutscene speech
1089
1090 Rockman X5 = 0.5-4x
1091 - fix capcom logo
1092 */
1093 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
1094 cdr.Seeked = SEEK_DOING_CMD;
1095 break;
1096
1097 case CdlTest:
1098 cdr.Stat = Acknowledge;
1099 switch (cdr.Param[0]) {
1100 case 0x20: // System Controller ROM Version
1101 SetResultSize(4);
1102 memcpy(cdr.Result, Test20, 4);
1103 break;
1104 case 0x22:
1105 SetResultSize(8);
1106 memcpy(cdr.Result, Test22, 4);
1107 break;
1108 case 0x23: case 0x24:
1109 SetResultSize(8);
1110 memcpy(cdr.Result, Test23, 4);
1111 break;
1112 }
1113 break;
1114
1115 case CdlID:
1116 SetResultSize(1);
1117 cdr.StatP |= STATUS_ROTATING;
1118 cdr.Result[0] = cdr.StatP;
1119 cdr.Stat = Acknowledge;
1120 AddIrqQueue(CdlID + 0x20, 0x800);
1121 break;
1122
1123 case CdlID + 0x20:
1124 SetResultSize(8);
1125
1126 if (CDR_getStatus(&stat) == -1) {
1127 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1128 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1129 }
1130 else {
1131 if (stat.Type == 2) {
1132 // Music CD
1133 cdr.Result[0] = 0x08;
1134 cdr.Result[1] = 0x10;
1135
1136 cdr.Result[1] |= 0x80;
1137 }
1138 else {
1139 // Data CD
1140 if (CdromId[0] == '\0') {
1141 cdr.Result[0] = 0x00;
1142 cdr.Result[1] = 0x80;
1143 }
1144 else {
1145 cdr.Result[0] = 0x08;
1146 cdr.Result[1] = 0x00;
1147 }
1148 }
1149 }
1150
1151 cdr.Result[2] = 0x00;
1152 cdr.Result[3] = 0x00;
1153 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1154 cdr.Stat = Complete;
1155 break;
1156
1157 case CdlReset:
1158 SetResultSize(1);
1159 cdr.StatP = STATUS_ROTATING;
1160 cdr.Result[0] = cdr.StatP;
1161 cdr.Stat = Acknowledge;
1162 break;
1163
1164 case CdlReadT:
1165 SetResultSize(1);
1166 cdr.StatP |= STATUS_ROTATING;
1167 cdr.Result[0] = cdr.StatP;
1168 cdr.Stat = Acknowledge;
1169 AddIrqQueue(CdlReadT + 0x20, 0x800);
1170 break;
1171
1172 case CdlReadT + 0x20:
1173 SetResultSize(1);
1174 cdr.StatP |= STATUS_ROTATING;
1175 cdr.Result[0] = cdr.StatP;
1176 cdr.Stat = Complete;
1177 break;
1178
1179 case CdlReadToc:
1180 SetResultSize(1);
1181 cdr.StatP |= STATUS_ROTATING;
1182 cdr.Result[0] = cdr.StatP;
1183 cdr.Stat = Acknowledge;
1184 AddIrqQueue(CdlReadToc + 0x20, 0x800);
1185 break;
1186
1187 case CdlReadToc + 0x20:
1188 SetResultSize(1);
1189 cdr.StatP |= STATUS_ROTATING;
1190 cdr.Result[0] = cdr.StatP;
1191 cdr.Stat = Complete;
1192 break;
1193
1194 case CdlReadN:
1195 case CdlReadS:
1196 if (!cdr.Reading) return;
1197
1198
1199 // Fighting Force 2 - update subq time immediately
1200 // - fixes new game
1201 ReadTrack( cdr.SetSector );
1202
1203
1204 // Crusaders of Might and Magic - update getlocl now
1205 // - fixes cutscene speech
1206 {
1207 u8 *buf = CDR_getBuffer();
1208 if (buf != NULL)
1209 memcpy(cdr.Transfer, buf, 8);
1210 }
1211
1212 /*
1213 Duke Nukem: Land of the Babes - seek then delay read for one frame
1214 - fixes cutscenes
1215 C-12 - Final Resistance - doesn't like seek
1216 */
1217
1218 if (cdr.Seeked != SEEK_DONE) {
1219 cdr.StatP |= STATUS_SEEK;
1220 cdr.StatP &= ~STATUS_READ;
1221
1222 // Crusaders of Might and Magic - use short time
1223 // - fix cutscene speech (startup)
1224
1225 // ??? - use more accurate seek time later
1226 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1227 } else {
1228 cdr.StatP |= STATUS_READ;
1229 cdr.StatP &= ~STATUS_SEEK;
1230
1231 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1232 }
1233
1234 SetResultSize(1);
1235 cdr.StatP |= STATUS_ROTATING;
1236 cdr.Result[0] = cdr.StatP;
1237 cdr.Stat = Acknowledge;
1238 break;
1239
1240 case 0xff:
1241 return;
1242
1243 default:
1244 cdr.Stat = Complete;
1245 break;
1246 }
1247
1248 Check_Shell( Irq );
1249
1250 cdr.ParamC = 0;
1251
1252 setIrq();
1253
1254#ifdef CDR_LOG_CMD_IRQ
1255 SysPrintf("cdrInterrupt() Log: CDR Interrupt IRQ %d %02x: ",
1256 cdr.Stat != NoIntr && cdr.Reg2 != 0x18, Irq);
1257 for (i = 0; i < cdr.ResultC; i++)
1258 SysPrintf("%02x ", cdr.Result[i]);
1259 SysPrintf("\n");
1260#endif
1261}
1262
1263void cdrReadInterrupt() {
1264 u8 *buf;
1265
1266 if (!cdr.Reading)
1267 return;
1268
1269 if (cdr.Irq || cdr.Stat) {
1270 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1271 CDREAD_INT(0x1000);
1272 return;
1273 }
1274
1275 cdr.OCUP = 1;
1276 SetResultSize(1);
1277 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1278 cdr.StatP &= ~STATUS_SEEK;
1279 cdr.Result[0] = cdr.StatP;
1280 cdr.Seeked = SEEK_DONE;
1281
1282 ReadTrack( cdr.SetSector );
1283
1284 buf = CDR_getBuffer();
1285 if (buf == NULL)
1286 cdr.RErr = -1;
1287
1288 if (cdr.RErr == -1) {
1289 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1290 memset(cdr.Transfer, 0, DATA_SIZE);
1291 cdr.Stat = DiskError;
1292 cdr.Result[0] |= STATUS_ERROR;
1293 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1294 return;
1295 }
1296
1297 memcpy(cdr.Transfer, buf, DATA_SIZE);
1298 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1299
1300
1301 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1302
1303 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1304 // Firemen 2: Multi-XA files - briefings, cutscenes
1305 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1306 cdr.File = cdr.Transfer[4 + 0];
1307 cdr.Channel = cdr.Transfer[4 + 1];
1308 }
1309
1310 if ((cdr.Transfer[4 + 2] & 0x4) &&
1311 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1312 (cdr.Transfer[4 + 0] == cdr.File)) {
1313 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1314
1315 if (!ret) {
1316 // only handle attenuator basic channel switch for now
1317 if (cdr.Xa.stereo) {
1318 int i;
1319 if ((cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1320 && !(cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1321 {
1322 for (i = 0; i < cdr.Xa.nsamples; i++)
1323 cdr.Xa.pcm[i*2 + 1] = cdr.Xa.pcm[i*2];
1324 }
1325 else if (!(cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1326 && (cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1327 {
1328 for (i = 0; i < cdr.Xa.nsamples; i++)
1329 cdr.Xa.pcm[i*2] = cdr.Xa.pcm[i*2 + 1];
1330 }
1331 }
1332
1333 SPU_playADPCMchannel(&cdr.Xa);
1334 cdr.FirstSector = 0;
1335
1336#if 0
1337 // Crash Team Racing: music, speech
1338 // - done using cdda decoded buffer (spu irq)
1339 // - don't do here
1340
1341 // signal ADPCM data ready
1342 setIrq();
1343#endif
1344 }
1345 else cdr.FirstSector = -1;
1346 }
1347 }
1348
1349 cdr.SetSector[2]++;
1350 if (cdr.SetSector[2] == 75) {
1351 cdr.SetSector[2] = 0;
1352 cdr.SetSector[1]++;
1353 if (cdr.SetSector[1] == 60) {
1354 cdr.SetSector[1] = 0;
1355 cdr.SetSector[0]++;
1356 }
1357 }
1358
1359 cdr.Readed = 0;
1360
1361 // G-Police: Don't autopause ADPCM even if mode set (music)
1362 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1363 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
1364
1365 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1366
1367 AddIrqQueue(CdlPause, 0x2000);
1368 }
1369 else {
1370 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1371 }
1372
1373 /*
1374 Croc 2: $40 - only FORM1 (*)
1375 Judge Dredd: $C8 - only FORM1 (*)
1376 Sim Theme Park - no adpcm at all (zero)
1377 */
1378
1379 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1380 cdr.Stat = DataReady;
1381 } else {
1382 // Breath of Fire 3 - fix inn sleeping
1383 // Rockman X5 - no music restart problem
1384 cdr.Stat = NoIntr;
1385 }
1386 setIrq();
1387
1388 Check_Shell(0);
1389}
1390
1391/*
1392cdrRead0:
1393 bit 0,1 - mode
1394 bit 2 - unknown
1395 bit 3 - unknown
1396 bit 4 - unknown
1397 bit 5 - 1 result ready
1398 bit 6 - 1 dma ready
1399 bit 7 - 1 command being processed
1400*/
1401
1402unsigned char cdrRead0(void) {
1403 if (cdr.ResultReady)
1404 cdr.Ctrl |= 0x20;
1405 else
1406 cdr.Ctrl &= ~0x20;
1407
1408 if (cdr.OCUP)
1409 cdr.Ctrl |= 0x40;
1410// else
1411// cdr.Ctrl &= ~0x40;
1412
1413 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1414 cdr.Ctrl |= 0x18;
1415
1416 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1417
1418 return psxHu8(0x1800) = cdr.Ctrl;
1419}
1420
1421void cdrWrite0(unsigned char rt) {
1422 CDR_LOG_IO("cdr w0: %02x\n", rt);
1423
1424 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1425}
1426
1427unsigned char cdrRead1(void) {
1428 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1429 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1430 else
1431 psxHu8(0x1801) = 0;
1432 cdr.ResultP++;
1433 if (cdr.ResultP == cdr.ResultC)
1434 cdr.ResultReady = 0;
1435
1436 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1437
1438 return psxHu8(0x1801);
1439}
1440
1441void cdrWrite1(unsigned char rt) {
1442 u8 set_loc[3];
1443 int i;
1444
1445 CDR_LOG_IO("cdr w1: %02x\n", rt);
1446
1447 switch (cdr.Ctrl & 3) {
1448 case 0:
1449 break;
1450 case 3:
1451 cdr.AttenuatorRight[1] = rt;
1452 return;
1453 default:
1454 return;
1455 }
1456
1457 cdr.Cmd = rt;
1458 cdr.OCUP = 0;
1459
1460#ifdef CDR_LOG_CMD_IRQ
1461 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1462 if (cdr.ParamC) {
1463 SysPrintf(" Param[%d] = {", cdr.ParamC);
1464 for (i = 0; i < cdr.ParamC; i++)
1465 SysPrintf(" %x,", cdr.Param[i]);
1466 SysPrintf("}\n");
1467 } else {
1468 SysPrintf("\n");
1469 }
1470#endif
1471
1472 cdr.ResultReady = 0;
1473 cdr.Ctrl |= 0x80;
1474 // cdr.Stat = NoIntr;
1475 AddIrqQueue(cdr.Cmd, 0x800);
1476
1477 switch (cdr.Cmd) {
1478 case CdlSync:
1479 case CdlNop:
1480 case CdlForward:
1481 case CdlBackward:
1482 case CdlReadT:
1483 case CdlTest:
1484 case CdlID:
1485 case CdlReadToc:
1486 case CdlGetmode:
1487 case CdlGetlocL:
1488 case CdlGetlocP:
1489 case CdlGetTD:
1490 break;
1491
1492 case CdlSetloc:
1493 StopReading();
1494 for (i = 0; i < 3; i++)
1495 set_loc[i] = btoi(cdr.Param[i]);
1496
1497 i = abs(msf2sec(cdr.SetSector) - msf2sec(set_loc));
1498 if (i > 16)
1499 cdr.Seeked = SEEK_PENDING;
1500
1501 memcpy(cdr.SetSector, set_loc, 3);
1502 cdr.SetSector[3] = 0;
1503 break;
1504
1505 case CdlPlay:
1506 // Vib Ribbon: try same track again
1507 StopCdda();
1508
1509 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1510 if (CDR_getTN(cdr.ResultTN) != -1) {
1511 if (cdr.CurTrack > cdr.ResultTN[1])
1512 cdr.CurTrack = cdr.ResultTN[1];
1513 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1514 int tmp = cdr.ResultTD[2];
1515 cdr.ResultTD[2] = cdr.ResultTD[0];
1516 cdr.ResultTD[0] = tmp;
1517 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1518 }
1519 }
1520 } else if (!Config.Cdda) {
1521 CDR_play(cdr.SetSector);
1522 }
1523
1524 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1525 // - fixes ribbon timing + music CD mode
1526 //TODO?
1527 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1528
1529 cdr.Play = TRUE;
1530
1531 cdr.StatP |= STATUS_SEEK;
1532 cdr.StatP &= ~STATUS_ROTATING;
1533 break;
1534
1535 case CdlReadN:
1536 StopReading();
1537 cdr.Reading = 1;
1538 cdr.FirstSector = 1;
1539 cdr.Readed = 0xff;
1540 break;
1541
1542 case CdlStandby:
1543 StopCdda();
1544 StopReading();
1545 break;
1546
1547 case CdlStop:
1548 // GameShark CD Player: Reset CDDA to track start
1549 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1550 cdr.SetSectorPlay[0] = stat.Time[0];
1551 cdr.SetSectorPlay[1] = stat.Time[1];
1552 cdr.SetSectorPlay[2] = stat.Time[2];
1553
1554 Find_CurTrack();
1555
1556 // grab time for current track
1557 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1558
1559 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1560 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1561 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1562 }
1563
1564 StopCdda();
1565 StopReading();
1566 break;
1567
1568 case CdlPause:
1569 /*
1570 GameShark CD Player: save time for resume
1571
1572 Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1573 */
1574
1575 StopCdda();
1576 StopReading();
1577 break;
1578
1579 case CdlReset:
1580 case CdlInit:
1581 cdr.Seeked = SEEK_DONE;
1582 StopCdda();
1583 StopReading();
1584 break;
1585
1586 case CdlMute:
1587 cdr.Muted = TRUE;
1588 // Duke Nukem - Time to Kill
1589 // - do not directly set cd-xa volume
1590 //SPU_writeRegister( H_CDLeft, 0x0000 );
1591 //SPU_writeRegister( H_CDRight, 0x0000 );
1592 break;
1593
1594 case CdlDemute:
1595 cdr.Muted = FALSE;
1596
1597 // Duke Nukem - Time to Kill
1598 // - do not directly set cd-xa volume
1599 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1600 //SPU_writeRegister( H_CDRight, 0x7f00 );
1601 break;
1602
1603 case CdlSetfilter:
1604 cdr.File = cdr.Param[0];
1605 cdr.Channel = cdr.Param[1];
1606 break;
1607
1608 case CdlSetmode:
1609 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1610
1611 cdr.Mode = cdr.Param[0];
1612
1613 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1614 // - fixes choppy movie sound
1615 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1616 StopCdda();
1617 break;
1618
1619 case CdlGetTN:
1620 //AddIrqQueue(cdr.Cmd, 0x800);
1621
1622 // GameShark CDX CD Player: very long time
1623 AddIrqQueue(cdr.Cmd, 0x100000);
1624 break;
1625
1626 case CdlSeekL:
1627 case CdlSeekP:
1628 // Tomb Raider 2 - reset cdda
1629 StopCdda();
1630 StopReading();
1631 break;
1632
1633 case CdlReadS:
1634 StopReading();
1635 cdr.Reading = 2;
1636 cdr.FirstSector = 1;
1637 cdr.Readed = 0xff;
1638 break;
1639
1640 default:
1641 cdr.ParamC = 0;
1642 CDR_LOG_I("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1643 return;
1644 }
1645}
1646
1647unsigned char cdrRead2(void) {
1648 unsigned char ret;
1649
1650 if (cdr.Readed == 0) {
1651 ret = 0;
1652 } else {
1653 ret = *pTransfer++;
1654 }
1655
1656 CDR_LOG_IO("cdr r2: %02x\n", ret);
1657 return ret;
1658}
1659
1660void cdrWrite2(unsigned char rt) {
1661 CDR_LOG_IO("cdr w2: %02x\n", rt);
1662
1663 switch (cdr.Ctrl & 3) {
1664 case 0:
1665 if (cdr.ParamC < 8) // FIXME: size and wrapping
1666 cdr.Param[cdr.ParamC++] = rt;
1667 return;
1668 case 1:
1669 cdr.Reg2 = rt;
1670 setIrq();
1671 return;
1672 case 2:
1673 cdr.AttenuatorLeft[0] = rt;
1674 return;
1675 case 3:
1676 cdr.AttenuatorRight[0] = rt;
1677 return;
1678 }
1679}
1680
1681unsigned char cdrRead3(void) {
1682 if (cdr.Ctrl & 0x1)
1683 psxHu8(0x1803) = cdr.Stat | 0xE0;
1684 else
1685 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1686
1687 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1688 return psxHu8(0x1803);
1689}
1690
1691void cdrWrite3(unsigned char rt) {
1692 CDR_LOG_IO("cdr w3: %02x\n", rt);
1693
1694 switch (cdr.Ctrl & 3) {
1695 case 0:
1696 goto transfer;
1697 case 1:
1698 break; // irq
1699 case 2:
1700 cdr.AttenuatorLeft[1] = rt;
1701 return;
1702 case 3:
1703 if (rt == 0x20)
1704 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1705 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1706 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1707 return;
1708 }
1709
1710 cdr.Stat &= ~rt;
1711
1712 if (rt & 0x40)
1713 cdr.ParamC = 0;
1714
1715 if (rt == 0x07) {
1716 if (cdr.Irq == 0xff) {
1717 cdr.Irq = 0;
1718 return;
1719 }
1720
1721 // XA streaming - incorrect timing because of this reschedule
1722 // - Final Fantasy Tactics
1723 // - various other games
1724
1725 if (cdr.Reading && !cdr.ResultReady) {
1726 int left = psxRegs.intCycle[PSXINT_CDREAD].sCycle + psxRegs.intCycle[PSXINT_CDREAD].cycle - psxRegs.cycle;
1727 int time = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1728 if (Config.CdrReschedule != 2)
1729 if (left < time / 2 || Config.CdrReschedule) { // rearmed guesswork hack
1730 CDR_LOG_I("-- resched %d -> %d\n", left, time);
1731 CDREAD_INT(time);
1732 }
1733 }
1734 }
1735 return;
1736
1737transfer:
1738 if ((rt & 0x80) && cdr.Readed == 0) {
1739 cdr.Readed = 1;
1740 pTransfer = cdr.Transfer;
1741
1742 switch (cdr.Mode & 0x30) {
1743 case MODE_SIZE_2328:
1744 case 0x00:
1745 pTransfer += 12;
1746 break;
1747
1748 case MODE_SIZE_2340:
1749 pTransfer += 0;
1750 break;
1751
1752 default:
1753 break;
1754 }
1755 }
1756}
1757
1758void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1759 u32 cdsize;
1760 int size;
1761 u8 *ptr;
1762
1763 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1764
1765 switch (chcr) {
1766 case 0x11000000:
1767 case 0x11400100:
1768 if (cdr.Readed == 0) {
1769 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1770 break;
1771 }
1772
1773 cdsize = (bcr & 0xffff) * 4;
1774
1775 // Ape Escape: bcr = 0001 / 0000
1776 // - fix boot
1777 if( cdsize == 0 )
1778 {
1779 switch (cdr.Mode & 0x30) {
1780 case 0x00: cdsize = 2048; break;
1781 case MODE_SIZE_2328: cdsize = 2328; break;
1782 case MODE_SIZE_2340: cdsize = 2340; break;
1783 }
1784 }
1785
1786
1787 ptr = (u8 *)PSXM(madr);
1788 if (ptr == NULL) {
1789 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1790 break;
1791 }
1792
1793 /*
1794 GS CDX: Enhancement CD crash
1795 - Setloc 0:0:0
1796 - CdlPlay
1797 - Spams DMA3 and gets buffer overrun
1798 */
1799 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1800 if (size > cdsize)
1801 size = cdsize;
1802 if (size > 0)
1803 {
1804 memcpy(ptr, pTransfer, size);
1805 }
1806
1807 psxCpu->Clear(madr, cdsize / 4);
1808 pTransfer += cdsize;
1809
1810
1811 // burst vs normal
1812 if( chcr == 0x11400100 ) {
1813 CDRDMA_INT( (cdsize/4) / 4 );
1814 }
1815 else if( chcr == 0x11000000 ) {
1816 CDRDMA_INT( (cdsize/4) * 1 );
1817 }
1818 return;
1819
1820 default:
1821 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1822 break;
1823 }
1824
1825 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1826 DMA_INTERRUPT(3);
1827}
1828
1829void cdrDmaInterrupt()
1830{
1831 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1832 {
1833 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1834 DMA_INTERRUPT(3);
1835 }
1836}
1837
1838void cdrReset() {
1839 memset(&cdr, 0, sizeof(cdr));
1840 cdr.CurTrack = 1;
1841 cdr.File = 1;
1842 cdr.Channel = 1;
1843 pTransfer = cdr.Transfer;
1844
1845 // BIOS player - default values
1846 cdr.AttenuatorLeft[0] = 0x80;
1847 cdr.AttenuatorLeft[1] = 0x00;
1848 cdr.AttenuatorRight[0] = 0x00;
1849 cdr.AttenuatorRight[1] = 0x80;
1850}
1851
1852int cdrFreeze(void *f, int Mode) {
1853 u32 tmp;
1854
1855 if( Mode == 0 ) {
1856 StopCdda();
1857 }
1858
1859 gzfreeze(&cdr, sizeof(cdr));
1860
1861 if (Mode == 1) {
1862 cdr.ParamP = cdr.ParamC;
1863 tmp = pTransfer - cdr.Transfer;
1864 }
1865
1866 gzfreeze(&tmp, sizeof(tmp));
1867
1868 if (Mode == 0) {
1869 pTransfer = cdr.Transfer + tmp;
1870
1871 if (cdr.Play && !Config.Cdda)
1872 CDR_play(cdr.SetSectorPlay);
1873 }
1874
1875 return 0;
1876}
1877
1878void LidInterrupt() {
1879 cdr.LidCheck = 0x20; // start checker
1880
1881 CDRLID_INT( cdReadTime * 3 );
1882
1883 // generate interrupt if none active - open or close
1884 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
1885 cdr.Ctrl |= 0x80;
1886 cdr.Stat = NoIntr;
1887 AddIrqQueue(CdlNop, 0x800);
1888 }
1889}
ARM optimized PCSX fork