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CDROM: Rename Reset+Init commands approperly, fix "This is Football 2" lockup (#205)
[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 02110-1301 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#include "arm_features.h"
28
29/* logging */
30#if 0
31#define CDR_LOG SysPrintf
32#else
33#define CDR_LOG(...)
34#endif
35#if 0
36#define CDR_LOG_I SysPrintf
37#else
38#define CDR_LOG_I(...)
39#endif
40#if 0
41#define CDR_LOG_IO SysPrintf
42#else
43#define CDR_LOG_IO(...)
44#endif
45//#define CDR_LOG_CMD_IRQ
46
47cdrStruct cdr;
48static unsigned char *pTransfer;
49
50/* CD-ROM magic numbers */
51#define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
52#define CdlNop 1
53#define CdlSetloc 2
54#define CdlPlay 3
55#define CdlForward 4
56#define CdlBackward 5
57#define CdlReadN 6
58#define CdlStandby 7
59#define CdlStop 8
60#define CdlPause 9
61#define CdlReset 10
62#define CdlMute 11
63#define CdlDemute 12
64#define CdlSetfilter 13
65#define CdlSetmode 14
66#define CdlGetparam 15
67#define CdlGetlocL 16
68#define CdlGetlocP 17
69#define CdlReadT 18
70#define CdlGetTN 19
71#define CdlGetTD 20
72#define CdlSeekL 21
73#define CdlSeekP 22
74#define CdlSetclock 23
75#define CdlGetclock 24
76#define CdlTest 25
77#define CdlID 26
78#define CdlReadS 27
79#define CdlInit 28
80#define CdlGetQ 29
81#define CdlReadToc 30
82
83char *CmdName[0x100]= {
84 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
85 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
86 "CdlStop", "CdlPause", "CdlReset", "CdlMute",
87 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetparam",
88 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
89 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
90 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
91 "CdlInit", 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_SIZE_2048 (0<<4) // 0x00
114#define MODE_SF (1<<3) // 0x08 channel on/off
115#define MODE_REPORT (1<<2) // 0x04
116#define MODE_AUTOPAUSE (1<<1) // 0x02
117#define MODE_CDDA (1<<0) // 0x01
118
119/* Status flags */
120#define STATUS_PLAY (1<<7) // 0x80
121#define STATUS_SEEK (1<<6) // 0x40
122#define STATUS_READ (1<<5) // 0x20
123#define STATUS_SHELLOPEN (1<<4) // 0x10
124#define STATUS_UNKNOWN3 (1<<3) // 0x08
125#define STATUS_UNKNOWN2 (1<<2) // 0x04
126#define STATUS_ROTATING (1<<1) // 0x02
127#define STATUS_ERROR (1<<0) // 0x01
128
129/* Errors */
130#define ERROR_NOTREADY (1<<7) // 0x80
131#define ERROR_INVALIDCMD (1<<6) // 0x40
132#define ERROR_INVALIDARG (1<<5) // 0x20
133
134// 1x = 75 sectors per second
135// PSXCLK = 1 sec in the ps
136// so (PSXCLK / 75) = cdr read time (linuzappz)
137#define cdReadTime (PSXCLK / 75)
138
139enum drive_state {
140 DRIVESTATE_STANDBY = 0,
141 DRIVESTATE_LID_OPEN,
142 DRIVESTATE_RESCAN_CD,
143 DRIVESTATE_PREPARE_CD,
144 DRIVESTATE_STOPPED,
145};
146
147// for cdr.Seeked
148enum seeked_state {
149 SEEK_PENDING = 0,
150 SEEK_DONE = 1,
151};
152
153static struct CdrStat stat;
154
155static unsigned int msf2sec(const u8 *msf) {
156 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
157}
158
159// for that weird psemu API..
160static unsigned int fsm2sec(const u8 *msf) {
161 return ((msf[2] * 60 + msf[1]) * 75) + msf[0];
162}
163
164static void sec2msf(unsigned int s, u8 *msf) {
165 msf[0] = s / 75 / 60;
166 s = s - msf[0] * 75 * 60;
167 msf[1] = s / 75;
168 s = s - msf[1] * 75;
169 msf[2] = s;
170}
171
172// cdrInterrupt
173#define CDR_INT(eCycle) { \
174 psxRegs.interrupt |= (1 << PSXINT_CDR); \
175 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
176 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
177 new_dyna_set_event(PSXINT_CDR, eCycle); \
178}
179
180// cdrReadInterrupt
181#define CDREAD_INT(eCycle) { \
182 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
183 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
184 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
185 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
186}
187
188// cdrLidSeekInterrupt
189#define CDRLID_INT(eCycle) { \
190 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
191 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
192 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
193 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
194}
195
196// cdrPlayInterrupt
197#define CDRMISC_INT(eCycle) { \
198 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
199 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
200 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
201 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
202}
203
204#define StopReading() { \
205 if (cdr.Reading) { \
206 cdr.Reading = 0; \
207 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
208 } \
209 cdr.StatP &= ~(STATUS_READ|STATUS_SEEK);\
210}
211
212#define StopCdda() { \
213 if (cdr.Play) { \
214 if (!Config.Cdda) CDR_stop(); \
215 cdr.StatP &= ~STATUS_PLAY; \
216 cdr.Play = FALSE; \
217 cdr.FastForward = 0; \
218 cdr.FastBackward = 0; \
219 /*SPU_registerCallback( SPUirq );*/ \
220 } \
221}
222
223#define SetResultSize(size) { \
224 cdr.ResultP = 0; \
225 cdr.ResultC = size; \
226 cdr.ResultReady = 1; \
227}
228
229static void setIrq(void)
230{
231 if (cdr.Stat & cdr.Reg2)
232 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
233}
234
235// timing used in this function was taken from tests on real hardware
236// (yes it's slow, but you probably don't want to modify it)
237void cdrLidSeekInterrupt()
238{
239 switch (cdr.DriveState) {
240 default:
241 case DRIVESTATE_STANDBY:
242 cdr.StatP &= ~STATUS_SEEK;
243
244 if (CDR_getStatus(&stat) == -1)
245 return;
246
247 if (stat.Status & STATUS_SHELLOPEN)
248 {
249 StopCdda();
250 cdr.DriveState = DRIVESTATE_LID_OPEN;
251 CDRLID_INT(0x800);
252 }
253 break;
254
255 case DRIVESTATE_LID_OPEN:
256 if (CDR_getStatus(&stat) == -1)
257 stat.Status &= ~STATUS_SHELLOPEN;
258
259 // 02, 12, 10
260 if (!(cdr.StatP & STATUS_SHELLOPEN)) {
261 StopReading();
262 cdr.StatP |= STATUS_SHELLOPEN;
263
264 // could generate error irq here, but real hardware
265 // only sometimes does that
266 // (not done when lots of commands are sent?)
267
268 CDRLID_INT(cdReadTime * 30);
269 break;
270 }
271 else if (cdr.StatP & STATUS_ROTATING) {
272 cdr.StatP &= ~STATUS_ROTATING;
273 }
274 else if (!(stat.Status & STATUS_SHELLOPEN)) {
275 // closed now
276 CheckCdrom();
277
278 // cdr.StatP STATUS_SHELLOPEN is "sticky"
279 // and is only cleared by CdlNop
280
281 cdr.DriveState = DRIVESTATE_RESCAN_CD;
282 CDRLID_INT(cdReadTime * 105);
283 break;
284 }
285
286 // recheck for close
287 CDRLID_INT(cdReadTime * 3);
288 break;
289
290 case DRIVESTATE_RESCAN_CD:
291 cdr.StatP |= STATUS_ROTATING;
292 cdr.DriveState = DRIVESTATE_PREPARE_CD;
293
294 // this is very long on real hardware, over 6 seconds
295 // make it a bit faster here...
296 CDRLID_INT(cdReadTime * 150);
297 break;
298
299 case DRIVESTATE_PREPARE_CD:
300 cdr.StatP |= STATUS_SEEK;
301
302 cdr.DriveState = DRIVESTATE_STANDBY;
303 CDRLID_INT(cdReadTime * 26);
304 break;
305 }
306}
307
308static void Find_CurTrack(const u8 *time)
309{
310 int current, sect;
311
312 current = msf2sec(time);
313
314 for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) {
315 CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD);
316 sect = fsm2sec(cdr.ResultTD);
317 if (sect - current >= 150)
318 break;
319 }
320}
321
322static void generate_subq(const u8 *time)
323{
324 unsigned char start[3], next[3];
325 unsigned int this_s, start_s, next_s, pregap;
326 int relative_s;
327
328 CDR_getTD(cdr.CurTrack, start);
329 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
330 pregap = 150;
331 CDR_getTD(cdr.CurTrack + 1, next);
332 }
333 else {
334 // last track - cd size
335 pregap = 0;
336 next[0] = cdr.SetSectorEnd[2];
337 next[1] = cdr.SetSectorEnd[1];
338 next[2] = cdr.SetSectorEnd[0];
339 }
340
341 this_s = msf2sec(time);
342 start_s = fsm2sec(start);
343 next_s = fsm2sec(next);
344
345 cdr.TrackChanged = FALSE;
346
347 if (next_s - this_s < pregap) {
348 cdr.TrackChanged = TRUE;
349 cdr.CurTrack++;
350 start_s = next_s;
351 }
352
353 cdr.subq.Index = 1;
354
355 relative_s = this_s - start_s;
356 if (relative_s < 0) {
357 cdr.subq.Index = 0;
358 relative_s = -relative_s;
359 }
360 sec2msf(relative_s, cdr.subq.Relative);
361
362 cdr.subq.Track = itob(cdr.CurTrack);
363 cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]);
364 cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]);
365 cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]);
366 cdr.subq.Absolute[0] = itob(time[0]);
367 cdr.subq.Absolute[1] = itob(time[1]);
368 cdr.subq.Absolute[2] = itob(time[2]);
369}
370
371static void ReadTrack(const u8 *time) {
372 unsigned char tmp[3];
373 struct SubQ *subq;
374 u16 crc;
375
376 tmp[0] = itob(time[0]);
377 tmp[1] = itob(time[1]);
378 tmp[2] = itob(time[2]);
379
380 if (memcmp(cdr.Prev, tmp, 3) == 0)
381 return;
382
383 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
384
385 cdr.RErr = CDR_readTrack(tmp);
386 memcpy(cdr.Prev, tmp, 3);
387
388 if (CheckSBI(time))
389 return;
390
391 subq = (struct SubQ *)CDR_getBufferSub();
392 if (subq != NULL && cdr.CurTrack == 1) {
393 crc = calcCrc((u8 *)subq + 12, 10);
394 if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
395 cdr.subq.Track = subq->TrackNumber;
396 cdr.subq.Index = subq->IndexNumber;
397 memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
398 memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
399 }
400 else {
401 CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
402 tmp[0], tmp[1], tmp[2]);
403 }
404 }
405 else {
406 generate_subq(time);
407 }
408
409 CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
410 cdr.subq.Track, cdr.subq.Index,
411 cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
412 cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
413}
414
415static void AddIrqQueue(unsigned short irq, unsigned long ecycle) {
416 if (cdr.Irq != 0) {
417 if (irq == cdr.Irq || irq + 0x100 == cdr.Irq) {
418 cdr.IrqRepeated = 1;
419 CDR_INT(ecycle);
420 return;
421 }
422
423 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
424 }
425
426 cdr.Irq = irq;
427 cdr.eCycle = ecycle;
428
429 CDR_INT(ecycle);
430}
431
432static void cdrPlayInterrupt_Autopause()
433{
434 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
435 CDR_LOG( "CDDA STOP\n" );
436
437 // Magic the Gathering
438 // - looping territory cdda
439
440 // ...?
441 //cdr.ResultReady = 1;
442 //cdr.Stat = DataReady;
443 cdr.Stat = DataEnd;
444 setIrq();
445
446 StopCdda();
447 }
448 else if (cdr.Mode & MODE_REPORT) {
449
450 cdr.Result[0] = cdr.StatP;
451 cdr.Result[1] = cdr.subq.Track;
452 cdr.Result[2] = cdr.subq.Index;
453
454 if (cdr.subq.Absolute[2] & 0x10) {
455 cdr.Result[3] = cdr.subq.Relative[0];
456 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
457 cdr.Result[5] = cdr.subq.Relative[2];
458 }
459 else {
460 cdr.Result[3] = cdr.subq.Absolute[0];
461 cdr.Result[4] = cdr.subq.Absolute[1];
462 cdr.Result[5] = cdr.subq.Absolute[2];
463 }
464
465 cdr.Result[6] = 0;
466 cdr.Result[7] = 0;
467
468 // Rayman: Logo freeze (resultready + dataready)
469 cdr.ResultReady = 1;
470 cdr.Stat = DataReady;
471
472 SetResultSize(8);
473 setIrq();
474 }
475}
476
477// also handles seek
478void cdrPlayInterrupt()
479{
480 if (cdr.Seeked == SEEK_PENDING) {
481 if (cdr.Stat) {
482 CDR_LOG_I("cdrom: seek stat hack\n");
483 CDRMISC_INT(0x1000);
484 return;
485 }
486 SetResultSize(1);
487 cdr.StatP |= STATUS_ROTATING;
488 cdr.StatP &= ~STATUS_SEEK;
489 cdr.Result[0] = cdr.StatP;
490 cdr.Seeked = SEEK_DONE;
491 if (cdr.Irq == 0) {
492 cdr.Stat = Complete;
493 setIrq();
494 }
495
496 if (cdr.SetlocPending) {
497 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
498 cdr.SetlocPending = 0;
499 cdr.m_locationChanged = TRUE;
500 }
501 Find_CurTrack(cdr.SetSectorPlay);
502 ReadTrack(cdr.SetSectorPlay);
503 cdr.TrackChanged = FALSE;
504 }
505
506 if (!cdr.Play) return;
507
508 CDR_LOG( "CDDA - %d:%d:%d\n",
509 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
510
511 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
512 StopCdda();
513 cdr.TrackChanged = TRUE;
514 }
515
516 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
517 cdrPlayInterrupt_Autopause();
518
519 if (!cdr.Play) return;
520
521 cdr.SetSectorPlay[2]++;
522 if (cdr.SetSectorPlay[2] == 75) {
523 cdr.SetSectorPlay[2] = 0;
524 cdr.SetSectorPlay[1]++;
525 if (cdr.SetSectorPlay[1] == 60) {
526 cdr.SetSectorPlay[1] = 0;
527 cdr.SetSectorPlay[0]++;
528 }
529 }
530
531 if (cdr.m_locationChanged)
532 {
533 CDRMISC_INT(cdReadTime * 30);
534 cdr.m_locationChanged = FALSE;
535 }
536 else
537 {
538 CDRMISC_INT(cdReadTime);
539 }
540
541 // update for CdlGetlocP/autopause
542 generate_subq(cdr.SetSectorPlay);
543}
544
545void cdrInterrupt() {
546 u16 Irq = cdr.Irq;
547 int no_busy_error = 0;
548 int start_rotating = 0;
549 int error = 0;
550 int delay;
551 unsigned int seekTime = 0;
552
553 // Reschedule IRQ
554 if (cdr.Stat) {
555 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
556 CDR_INT(0x1000);
557 return;
558 }
559
560 cdr.Ctrl &= ~0x80;
561
562 // default response
563 SetResultSize(1);
564 cdr.Result[0] = cdr.StatP;
565 cdr.Stat = Acknowledge;
566
567 if (cdr.IrqRepeated) {
568 cdr.IrqRepeated = 0;
569 if (cdr.eCycle > psxRegs.cycle) {
570 CDR_INT(cdr.eCycle);
571 goto finish;
572 }
573 }
574
575 cdr.Irq = 0;
576
577 switch (Irq) {
578 case CdlNop:
579 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
580 cdr.StatP &= ~STATUS_SHELLOPEN;
581 no_busy_error = 1;
582 break;
583
584 case CdlSetloc:
585 break;
586
587 do_CdlPlay:
588 case CdlPlay:
589 StopCdda();
590 if (cdr.Seeked == SEEK_PENDING) {
591 // XXX: wrong, should seek instead..
592 cdr.Seeked = SEEK_DONE;
593 }
594 if (cdr.SetlocPending) {
595 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
596 cdr.SetlocPending = 0;
597 cdr.m_locationChanged = TRUE;
598 }
599
600 // BIOS CD Player
601 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
602
603 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
604 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
605 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
606 }
607 else
608 {
609 int track = btoi( cdr.Param[0] );
610
611 if (track <= cdr.ResultTN[1])
612 cdr.CurTrack = track;
613
614 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
615
616 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
617 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
618 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
619 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
620 }
621 }
622
623 /*
624 Rayman: detect track changes
625 - fixes logo freeze
626
627 Twisted Metal 2: skip PREGAP + starting accurate SubQ
628 - plays tracks without retry play
629
630 Wild 9: skip PREGAP + starting accurate SubQ
631 - plays tracks without retry play
632 */
633 Find_CurTrack(cdr.SetSectorPlay);
634 ReadTrack(cdr.SetSectorPlay);
635 cdr.TrackChanged = FALSE;
636
637 if (!Config.Cdda)
638 CDR_play(cdr.SetSectorPlay);
639
640 // Vib Ribbon: gameplay checks flag
641 cdr.StatP &= ~STATUS_SEEK;
642 cdr.Result[0] = cdr.StatP;
643
644 cdr.StatP |= STATUS_PLAY;
645
646 // BIOS player - set flag again
647 cdr.Play = TRUE;
648
649 CDRMISC_INT( cdReadTime );
650 start_rotating = 1;
651 break;
652
653 case CdlForward:
654 // TODO: error 80 if stopped
655 cdr.Stat = Complete;
656
657 // GameShark CD Player: Calls 2x + Play 2x
658 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
659 else cdr.FastForward++;
660
661 cdr.FastBackward = 0;
662 break;
663
664 case CdlBackward:
665 cdr.Stat = Complete;
666
667 // GameShark CD Player: Calls 2x + Play 2x
668 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
669 else cdr.FastBackward++;
670
671 cdr.FastForward = 0;
672 break;
673
674 case CdlStandby:
675 if (cdr.DriveState != DRIVESTATE_STOPPED) {
676 error = ERROR_INVALIDARG;
677 goto set_error;
678 }
679 AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
680 start_rotating = 1;
681 break;
682
683 case CdlStandby + 0x100:
684 cdr.Stat = Complete;
685 break;
686
687 case CdlStop:
688 if (cdr.Play) {
689 // grab time for current track
690 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
691
692 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
693 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
694 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
695 }
696
697 StopCdda();
698 StopReading();
699
700 delay = 0x800;
701 if (cdr.DriveState == DRIVESTATE_STANDBY)
702 delay = cdReadTime * 30 / 2;
703
704 cdr.DriveState = DRIVESTATE_STOPPED;
705 AddIrqQueue(CdlStop + 0x100, delay);
706 break;
707
708 case CdlStop + 0x100:
709 cdr.StatP &= ~STATUS_ROTATING;
710 cdr.Result[0] = cdr.StatP;
711 cdr.Stat = Complete;
712 break;
713
714 case CdlPause:
715 /*
716 Gundam Battle Assault 2: much slower (*)
717 - Fixes boot, gameplay
718
719 Hokuto no Ken 2: slower
720 - Fixes intro + subtitles
721
722 InuYasha - Feudal Fairy Tale: slower
723 - Fixes battles
724 */
725 AddIrqQueue(CdlPause + 0x100, cdReadTime * 3);
726 cdr.Ctrl |= 0x80;
727 break;
728
729 case CdlPause + 0x100:
730 cdr.StatP &= ~STATUS_READ;
731 cdr.Result[0] = cdr.StatP;
732 cdr.Stat = Complete;
733 break;
734
735 case CdlReset:
736 cdr.Muted = FALSE;
737 cdr.Mode = 0x20; /* This fixes This is Football 2, Pooh's Party lockups */
738 AddIrqQueue(CdlReset + 0x100, 4100000);
739 no_busy_error = 1;
740 start_rotating = 1;
741 break;
742
743 case CdlReset + 0x100:
744 cdr.Stat = Complete;
745 break;
746
747 case CdlMute:
748 cdr.Muted = TRUE;
749 break;
750
751 case CdlDemute:
752 cdr.Muted = FALSE;
753 break;
754
755 case CdlSetfilter:
756 cdr.File = cdr.Param[0];
757 cdr.Channel = cdr.Param[1];
758 break;
759
760 case CdlSetmode:
761 no_busy_error = 1;
762 break;
763
764 case CdlGetparam:
765 /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */
766 SetResultSize(5);
767 cdr.Result[1] = cdr.Mode;
768 cdr.Result[2] = 0;
769 cdr.Result[3] = cdr.File;
770 cdr.Result[4] = cdr.Channel;
771 no_busy_error = 1;
772 break;
773
774 case CdlGetlocL:
775 SetResultSize(8);
776 memcpy(cdr.Result, cdr.Transfer, 8);
777 break;
778
779 case CdlGetlocP:
780 SetResultSize(8);
781 memcpy(&cdr.Result, &cdr.subq, 8);
782
783 if (!cdr.Play && !cdr.Reading)
784 cdr.Result[1] = 0; // HACK?
785 break;
786
787 case CdlReadT: // SetSession?
788 // really long
789 AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
790 start_rotating = 1;
791 break;
792
793 case CdlReadT + 0x100:
794 cdr.Stat = Complete;
795 break;
796
797 case CdlGetTN:
798 SetResultSize(3);
799 if (CDR_getTN(cdr.ResultTN) == -1) {
800 cdr.Stat = DiskError;
801 cdr.Result[0] |= STATUS_ERROR;
802 } else {
803 cdr.Stat = Acknowledge;
804 cdr.Result[1] = itob(cdr.ResultTN[0]);
805 cdr.Result[2] = itob(cdr.ResultTN[1]);
806 }
807 break;
808
809 case CdlGetTD:
810 cdr.Track = btoi(cdr.Param[0]);
811 SetResultSize(4);
812 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
813 cdr.Stat = DiskError;
814 cdr.Result[0] |= STATUS_ERROR;
815 } else {
816 cdr.Stat = Acknowledge;
817 cdr.Result[0] = cdr.StatP;
818 cdr.Result[1] = itob(cdr.ResultTD[2]);
819 cdr.Result[2] = itob(cdr.ResultTD[1]);
820 /* According to Nocash's documentation, the function doesn't care about ff.
821 * This can be seen also in Mednafen's implementation. */
822 //cdr.Result[3] = itob(cdr.ResultTD[0]);
823 }
824 break;
825
826 case CdlSeekL:
827 case CdlSeekP:
828 StopCdda();
829 StopReading();
830 cdr.StatP |= STATUS_SEEK;
831
832 /*
833 Crusaders of Might and Magic = 0.5x-4x
834 - fix cutscene speech start
835
836 Eggs of Steel = 2x-?
837 - fix new game
838
839 Medievil = ?-4x
840 - fix cutscene speech
841
842 Rockman X5 = 0.5-4x
843 - fix capcom logo
844 */
845 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
846 cdr.Seeked = SEEK_PENDING;
847 start_rotating = 1;
848 break;
849
850 case CdlTest:
851 switch (cdr.Param[0]) {
852 case 0x20: // System Controller ROM Version
853 SetResultSize(4);
854 memcpy(cdr.Result, Test20, 4);
855 break;
856 case 0x22:
857 SetResultSize(8);
858 memcpy(cdr.Result, Test22, 4);
859 break;
860 case 0x23: case 0x24:
861 SetResultSize(8);
862 memcpy(cdr.Result, Test23, 4);
863 break;
864 }
865 no_busy_error = 1;
866 break;
867
868 case CdlID:
869 AddIrqQueue(CdlID + 0x100, 20480);
870 break;
871
872 case CdlID + 0x100:
873 SetResultSize(8);
874 cdr.Result[0] = cdr.StatP;
875 cdr.Result[1] = 0;
876 cdr.Result[2] = 0;
877 cdr.Result[3] = 0;
878
879 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
880 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
881 cdr.Result[1] = 0xc0;
882 }
883 else {
884 if (stat.Type == 2)
885 cdr.Result[1] |= 0x10;
886 if (CdromId[0] == '\0')
887 cdr.Result[1] |= 0x80;
888 }
889 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
890
891 strncpy((char *)&cdr.Result[4], "PCSX", 4);
892 cdr.Stat = Complete;
893 break;
894
895 case CdlInit:
896 // yes, it really sets STATUS_SHELLOPEN
897 cdr.StatP |= STATUS_SHELLOPEN;
898 cdr.DriveState = DRIVESTATE_RESCAN_CD;
899 CDRLID_INT(20480);
900 no_busy_error = 1;
901 start_rotating = 1;
902 break;
903
904 case CdlGetQ:
905 no_busy_error = 1;
906 break;
907
908 case CdlReadToc:
909 AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
910 no_busy_error = 1;
911 start_rotating = 1;
912 break;
913
914 case CdlReadToc + 0x100:
915 cdr.Stat = Complete;
916 no_busy_error = 1;
917 break;
918
919 case CdlReadN:
920 case CdlReadS:
921 if (cdr.SetlocPending) {
922 seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
923 if(seekTime > 1000000) seekTime = 1000000;
924 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
925 cdr.SetlocPending = 0;
926 cdr.m_locationChanged = TRUE;
927 }
928 Find_CurTrack(cdr.SetSectorPlay);
929
930 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
931 // Read* acts as play for cdda tracks in cdda mode
932 goto do_CdlPlay;
933
934 cdr.Reading = 1;
935 cdr.FirstSector = 1;
936
937 // Fighting Force 2 - update subq time immediately
938 // - fixes new game
939 ReadTrack(cdr.SetSectorPlay);
940
941
942 // Crusaders of Might and Magic - update getlocl now
943 // - fixes cutscene speech
944 {
945 u8 *buf = CDR_getBuffer();
946 if (buf != NULL)
947 memcpy(cdr.Transfer, buf, 8);
948 }
949
950 /*
951 Duke Nukem: Land of the Babes - seek then delay read for one frame
952 - fixes cutscenes
953 C-12 - Final Resistance - doesn't like seek
954 */
955
956 if (cdr.Seeked != SEEK_DONE) {
957 cdr.StatP |= STATUS_SEEK;
958 cdr.StatP &= ~STATUS_READ;
959
960 // Crusaders of Might and Magic - use short time
961 // - fix cutscene speech (startup)
962
963 // ??? - use more accurate seek time later
964 CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1) + seekTime);
965 } else {
966 cdr.StatP |= STATUS_READ;
967 cdr.StatP &= ~STATUS_SEEK;
968
969 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
970 }
971
972 cdr.Result[0] = cdr.StatP;
973 start_rotating = 1;
974 break;
975 case CdlSync:
976 default:
977 CDR_LOG_I("Invalid command: %02x\n", Irq);
978 error = ERROR_INVALIDCMD;
979 // FALLTHROUGH
980
981 set_error:
982 SetResultSize(2);
983 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
984 cdr.Result[1] = error;
985 cdr.Stat = DiskError;
986 break;
987 }
988
989 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
990 cdr.DriveState = DRIVESTATE_STANDBY;
991 cdr.StatP |= STATUS_ROTATING;
992 }
993
994 if (!no_busy_error) {
995 switch (cdr.DriveState) {
996 case DRIVESTATE_LID_OPEN:
997 case DRIVESTATE_RESCAN_CD:
998 case DRIVESTATE_PREPARE_CD:
999 SetResultSize(2);
1000 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1001 cdr.Result[1] = ERROR_NOTREADY;
1002 cdr.Stat = DiskError;
1003 break;
1004 }
1005 }
1006
1007finish:
1008 setIrq();
1009 cdr.ParamC = 0;
1010
1011#ifdef CDR_LOG_CMD_IRQ
1012 {
1013 int i;
1014 SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
1015 !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
1016 for (i = 0; i < cdr.ResultC; i++)
1017 SysPrintf("%02x ", cdr.Result[i]);
1018 SysPrintf("\n");
1019 }
1020#endif
1021}
1022
1023#ifdef HAVE_ARMV7
1024 #define ssat32_to_16(v) \
1025 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1026#else
1027 #define ssat32_to_16(v) do { \
1028 if (v < -32768) v = -32768; \
1029 else if (v > 32767) v = 32767; \
1030 } while (0)
1031#endif
1032
1033void cdrAttenuate(s16 *buf, int samples, int stereo)
1034{
1035 int i, l, r;
1036 int ll = cdr.AttenuatorLeftToLeft;
1037 int lr = cdr.AttenuatorLeftToRight;
1038 int rl = cdr.AttenuatorRightToLeft;
1039 int rr = cdr.AttenuatorRightToRight;
1040
1041 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1042 return;
1043
1044 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1045 return;
1046
1047 if (stereo) {
1048 for (i = 0; i < samples; i++) {
1049 l = buf[i * 2];
1050 r = buf[i * 2 + 1];
1051 l = (l * ll + r * rl) >> 7;
1052 r = (r * rr + l * lr) >> 7;
1053 ssat32_to_16(l);
1054 ssat32_to_16(r);
1055 buf[i * 2] = l;
1056 buf[i * 2 + 1] = r;
1057 }
1058 }
1059 else {
1060 for (i = 0; i < samples; i++) {
1061 l = buf[i];
1062 l = l * (ll + rl) >> 7;
1063 //r = r * (rr + lr) >> 7;
1064 ssat32_to_16(l);
1065 //ssat32_to_16(r);
1066 buf[i] = l;
1067 }
1068 }
1069}
1070
1071void cdrReadInterrupt() {
1072 u8 *buf;
1073
1074 if (!cdr.Reading)
1075 return;
1076
1077 if (cdr.Irq || cdr.Stat) {
1078 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1079 CDREAD_INT(0x1000);
1080 return;
1081 }
1082
1083 cdr.OCUP = 1;
1084 SetResultSize(1);
1085 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1086 cdr.StatP &= ~STATUS_SEEK;
1087 cdr.Result[0] = cdr.StatP;
1088 cdr.Seeked = SEEK_DONE;
1089
1090 ReadTrack(cdr.SetSectorPlay);
1091
1092 buf = CDR_getBuffer();
1093 if (buf == NULL)
1094 cdr.RErr = -1;
1095
1096 if (cdr.RErr == -1) {
1097 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1098 memset(cdr.Transfer, 0, DATA_SIZE);
1099 cdr.Stat = DiskError;
1100 cdr.Result[0] |= STATUS_ERROR;
1101 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1102 return;
1103 }
1104
1105 memcpy(cdr.Transfer, buf, DATA_SIZE);
1106 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1107
1108
1109 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1110
1111 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1112 // Firemen 2: Multi-XA files - briefings, cutscenes
1113 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1114 cdr.File = cdr.Transfer[4 + 0];
1115 cdr.Channel = cdr.Transfer[4 + 1];
1116 }
1117
1118 /* Gameblabla
1119 * Skips playing on channel 255.
1120 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1121 * TODO : Check if this is the proper behaviour.
1122 * */
1123 if((cdr.Transfer[4 + 2] & 0x4) &&
1124 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1125 (cdr.Transfer[4 + 0] == cdr.File) && cdr.Channel != 255) {
1126 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1127 if (!ret) {
1128 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1129 SPU_playADPCMchannel(&cdr.Xa);
1130 cdr.FirstSector = 0;
1131 }
1132 else cdr.FirstSector = -1;
1133 }
1134 }
1135
1136 cdr.SetSectorPlay[2]++;
1137 if (cdr.SetSectorPlay[2] == 75) {
1138 cdr.SetSectorPlay[2] = 0;
1139 cdr.SetSectorPlay[1]++;
1140 if (cdr.SetSectorPlay[1] == 60) {
1141 cdr.SetSectorPlay[1] = 0;
1142 cdr.SetSectorPlay[0]++;
1143 }
1144 }
1145
1146 cdr.Readed = 0;
1147
1148 uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1149 if (cdr.m_locationChanged) {
1150 CDREAD_INT(delay * 30);
1151 cdr.m_locationChanged = FALSE;
1152 } else {
1153 CDREAD_INT(delay);
1154 }
1155
1156 /*
1157 Croc 2: $40 - only FORM1 (*)
1158 Judge Dredd: $C8 - only FORM1 (*)
1159 Sim Theme Park - no adpcm at all (zero)
1160 */
1161
1162 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1163 cdr.Stat = DataReady;
1164 setIrq();
1165 }
1166
1167 // update for CdlGetlocP
1168 ReadTrack(cdr.SetSectorPlay);
1169}
1170
1171/*
1172cdrRead0:
1173 bit 0,1 - mode
1174 bit 2 - unknown
1175 bit 3 - unknown
1176 bit 4 - unknown
1177 bit 5 - 1 result ready
1178 bit 6 - 1 dma ready
1179 bit 7 - 1 command being processed
1180*/
1181
1182unsigned char cdrRead0(void) {
1183 if (cdr.ResultReady)
1184 cdr.Ctrl |= 0x20;
1185 else
1186 cdr.Ctrl &= ~0x20;
1187
1188 if (cdr.OCUP)
1189 cdr.Ctrl |= 0x40;
1190// else
1191// cdr.Ctrl &= ~0x40;
1192
1193 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1194 cdr.Ctrl |= 0x18;
1195
1196 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1197
1198 return psxHu8(0x1800) = cdr.Ctrl;
1199}
1200
1201void cdrWrite0(unsigned char rt) {
1202 CDR_LOG_IO("cdr w0: %02x\n", rt);
1203
1204 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1205}
1206
1207unsigned char cdrRead1(void) {
1208 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1209 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1210 else
1211 psxHu8(0x1801) = 0;
1212 cdr.ResultP++;
1213 if (cdr.ResultP == cdr.ResultC)
1214 cdr.ResultReady = 0;
1215
1216 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1217
1218 return psxHu8(0x1801);
1219}
1220
1221void cdrWrite1(unsigned char rt) {
1222 u8 set_loc[3];
1223 int i;
1224
1225 CDR_LOG_IO("cdr w1: %02x\n", rt);
1226
1227 switch (cdr.Ctrl & 3) {
1228 case 0:
1229 break;
1230 case 3:
1231 cdr.AttenuatorRightToRightT = rt;
1232 return;
1233 default:
1234 return;
1235 }
1236
1237 cdr.Cmd = rt;
1238 cdr.OCUP = 0;
1239
1240#ifdef CDR_LOG_CMD_IRQ
1241 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1242 if (cdr.ParamC) {
1243 SysPrintf(" Param[%d] = {", cdr.ParamC);
1244 for (i = 0; i < cdr.ParamC; i++)
1245 SysPrintf(" %x,", cdr.Param[i]);
1246 SysPrintf("}\n");
1247 } else {
1248 SysPrintf("\n");
1249 }
1250#endif
1251
1252 cdr.ResultReady = 0;
1253 cdr.Ctrl |= 0x80;
1254 // cdr.Stat = NoIntr;
1255 AddIrqQueue(cdr.Cmd, 0x800);
1256
1257 switch (cdr.Cmd) {
1258 case CdlSetloc:
1259 CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
1260
1261 // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
1262 if (((cdr.Param[0] & 0x0F) > 0x09) || (cdr.Param[0] > 0x99) || ((cdr.Param[1] & 0x0F) > 0x09) || (cdr.Param[1] >= 0x60) || ((cdr.Param[2] & 0x0F) > 0x09) || (cdr.Param[2] >= 0x75))
1263 {
1264 CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
1265 }
1266 else
1267 {
1268 for (i = 0; i < 3; i++)
1269 {
1270 set_loc[i] = btoi(cdr.Param[i]);
1271 }
1272
1273 i = msf2sec(cdr.SetSectorPlay);
1274 i = abs(i - msf2sec(set_loc));
1275 if (i > 16)
1276 cdr.Seeked = SEEK_PENDING;
1277
1278 memcpy(cdr.SetSector, set_loc, 3);
1279 cdr.SetSector[3] = 0;
1280 cdr.SetlocPending = 1;
1281 }
1282 break;
1283
1284 case CdlReadN:
1285 case CdlReadS:
1286 case CdlPause:
1287 StopCdda();
1288 StopReading();
1289 break;
1290
1291 case CdlInit:
1292 case CdlReset:
1293 cdr.Seeked = SEEK_DONE;
1294 StopCdda();
1295 StopReading();
1296 break;
1297
1298 case CdlSetmode:
1299 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1300
1301 cdr.Mode = cdr.Param[0];
1302
1303 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1304 // - fixes choppy movie sound
1305 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1306 StopCdda();
1307 break;
1308 }
1309}
1310
1311unsigned char cdrRead2(void) {
1312 unsigned char ret;
1313
1314 if (cdr.Readed == 0) {
1315 ret = 0;
1316 } else {
1317 ret = *pTransfer++;
1318 }
1319
1320 CDR_LOG_IO("cdr r2: %02x\n", ret);
1321 return ret;
1322}
1323
1324void cdrWrite2(unsigned char rt) {
1325 CDR_LOG_IO("cdr w2: %02x\n", rt);
1326
1327 switch (cdr.Ctrl & 3) {
1328 case 0:
1329 if (cdr.ParamC < 8) // FIXME: size and wrapping
1330 cdr.Param[cdr.ParamC++] = rt;
1331 return;
1332 case 1:
1333 cdr.Reg2 = rt;
1334 setIrq();
1335 return;
1336 case 2:
1337 cdr.AttenuatorLeftToLeftT = rt;
1338 return;
1339 case 3:
1340 cdr.AttenuatorRightToLeftT = rt;
1341 return;
1342 }
1343}
1344
1345unsigned char cdrRead3(void) {
1346 if (cdr.Ctrl & 0x1)
1347 psxHu8(0x1803) = cdr.Stat | 0xE0;
1348 else
1349 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1350
1351 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1352 return psxHu8(0x1803);
1353}
1354
1355void cdrWrite3(unsigned char rt) {
1356 CDR_LOG_IO("cdr w3: %02x\n", rt);
1357
1358 switch (cdr.Ctrl & 3) {
1359 case 0:
1360 break; // transfer
1361 case 1:
1362 cdr.Stat &= ~rt;
1363
1364 if (rt & 0x40)
1365 cdr.ParamC = 0;
1366 return;
1367 case 2:
1368 cdr.AttenuatorLeftToRightT = rt;
1369 return;
1370 case 3:
1371 if (rt & 0x20) {
1372 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1373 CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
1374 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1375 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1376 }
1377 return;
1378 }
1379
1380 if ((rt & 0x80) && cdr.Readed == 0) {
1381 cdr.Readed = 1;
1382 pTransfer = cdr.Transfer;
1383
1384 switch (cdr.Mode & 0x30) {
1385 case MODE_SIZE_2328:
1386 case 0x00:
1387 pTransfer += 12;
1388 break;
1389
1390 case MODE_SIZE_2340:
1391 pTransfer += 0;
1392 break;
1393
1394 default:
1395 break;
1396 }
1397 }
1398}
1399
1400void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1401 u32 cdsize;
1402 int size;
1403 u8 *ptr;
1404
1405 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1406
1407 switch (chcr) {
1408 case 0x11000000:
1409 case 0x11400100:
1410 if (cdr.Readed == 0) {
1411 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1412 break;
1413 }
1414
1415 cdsize = (bcr & 0xffff) * 4;
1416
1417 // Ape Escape: bcr = 0001 / 0000
1418 // - fix boot
1419 if( cdsize == 0 )
1420 {
1421 switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
1422 case MODE_SIZE_2340: cdsize = 2340; break;
1423 case MODE_SIZE_2328: cdsize = 2328; break;
1424 default:
1425 case MODE_SIZE_2048: cdsize = 2048; break;
1426 }
1427 }
1428
1429
1430 ptr = (u8 *)PSXM(madr);
1431 if (ptr == NULL) {
1432 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1433 break;
1434 }
1435
1436 /*
1437 GS CDX: Enhancement CD crash
1438 - Setloc 0:0:0
1439 - CdlPlay
1440 - Spams DMA3 and gets buffer overrun
1441 */
1442 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1443 if (size > cdsize)
1444 size = cdsize;
1445 if (size > 0)
1446 {
1447 memcpy(ptr, pTransfer, size);
1448 }
1449
1450 psxCpu->Clear(madr, cdsize / 4);
1451 pTransfer += cdsize;
1452
1453 if( chcr == 0x11400100 ) {
1454 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1455 CDRDMA_INT( (cdsize/4) / 4 );
1456 }
1457 else if( chcr == 0x11000000 ) {
1458 // CDRDMA_INT( (cdsize/4) * 1 );
1459 // halted
1460 psxRegs.cycle += (cdsize/4) * 24/2;
1461 CDRDMA_INT(16);
1462 }
1463 return;
1464
1465 default:
1466 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1467 break;
1468 }
1469
1470 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1471 DMA_INTERRUPT(3);
1472}
1473
1474void cdrDmaInterrupt()
1475{
1476 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1477 {
1478 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1479 DMA_INTERRUPT(3);
1480 }
1481}
1482
1483static void getCdInfo(void)
1484{
1485 u8 tmp;
1486
1487 CDR_getTN(cdr.ResultTN);
1488 CDR_getTD(0, cdr.SetSectorEnd);
1489 tmp = cdr.SetSectorEnd[0];
1490 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1491 cdr.SetSectorEnd[2] = tmp;
1492}
1493
1494void cdrReset() {
1495 memset(&cdr, 0, sizeof(cdr));
1496 cdr.CurTrack = 1;
1497 cdr.File = 1;
1498 cdr.Channel = 1;
1499 cdr.Reg2 = 0x1f;
1500 cdr.Stat = NoIntr;
1501 cdr.DriveState = DRIVESTATE_STANDBY;
1502 cdr.StatP = STATUS_ROTATING;
1503 pTransfer = cdr.Transfer;
1504 cdr.SetlocPending = 0;
1505 cdr.m_locationChanged = FALSE;
1506
1507 // BIOS player - default values
1508 cdr.AttenuatorLeftToLeft = 0x80;
1509 cdr.AttenuatorLeftToRight = 0x00;
1510 cdr.AttenuatorRightToLeft = 0x00;
1511 cdr.AttenuatorRightToRight = 0x80;
1512
1513 getCdInfo();
1514}
1515
1516int cdrFreeze(void *f, int Mode) {
1517 u32 tmp;
1518 u8 tmpp[3];
1519
1520 if (Mode == 0 && !Config.Cdda)
1521 CDR_stop();
1522
1523 cdr.freeze_ver = 0x63647202;
1524 gzfreeze(&cdr, sizeof(cdr));
1525
1526 if (Mode == 1) {
1527 cdr.ParamP = cdr.ParamC;
1528 tmp = pTransfer - cdr.Transfer;
1529 }
1530
1531 gzfreeze(&tmp, sizeof(tmp));
1532
1533 if (Mode == 0) {
1534 getCdInfo();
1535
1536 pTransfer = cdr.Transfer + tmp;
1537
1538 // read right sub data
1539 tmpp[0] = btoi(cdr.Prev[0]);
1540 tmpp[1] = btoi(cdr.Prev[1]);
1541 tmpp[2] = btoi(cdr.Prev[2]);
1542 cdr.Prev[0]++;
1543 ReadTrack(tmpp);
1544
1545 if (cdr.Play) {
1546 if (cdr.freeze_ver < 0x63647202)
1547 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1548
1549 Find_CurTrack(cdr.SetSectorPlay);
1550 if (!Config.Cdda)
1551 CDR_play(cdr.SetSectorPlay);
1552 }
1553
1554 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1555 // old versions did not latch Reg2, have to fixup..
1556 if (cdr.Reg2 == 0) {
1557 SysPrintf("cdrom: fixing up old savestate\n");
1558 cdr.Reg2 = 7;
1559 }
1560 // also did not save Attenuator..
1561 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1562 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1563 {
1564 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1565 }
1566 }
1567 }
1568
1569 return 0;
1570}
1571
1572void LidInterrupt() {
1573 getCdInfo();
1574 StopCdda();
1575 cdrLidSeekInterrupt();
1576}
ARM optimized PCSX fork