1 /***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
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. *
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. *
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 ***************************************************************************/
21 * Handles all CD-ROM registers and functions.
30 /* CD-ROM magic numbers */
44 #define CdlSetfilter 13
54 #define CdlSetclock 23
55 #define CdlGetclock 24
65 #define REPPLAY_ACK 252
68 /* don't set 255, it's reserved */
70 char *CmdName[0x100]= {
71 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
72 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
73 "CdlStop", "CdlPause", "CdlInit", "CdlMute",
74 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
75 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
76 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
77 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
78 "CdlReset", NULL, "CDlReadToc", NULL
81 unsigned char Test04[] = { 0 };
82 unsigned char Test05[] = { 0 };
83 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
84 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
85 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
96 #define MODE_SPEED (1<<7) // 0x80
97 #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
98 #define MODE_SIZE_2340 (1<<5) // 0x20
99 #define MODE_SIZE_2328 (1<<4) // 0x10
100 #define MODE_SF (1<<3) // 0x08 channel on/off
101 #define MODE_REPORT (1<<2) // 0x04
102 #define MODE_AUTOPAUSE (1<<1) // 0x02
103 #define MODE_CDDA (1<<0) // 0x01
106 #define STATUS_PLAY (1<<7) // 0x80
107 #define STATUS_SEEK (1<<6) // 0x40
108 #define STATUS_READ (1<<5) // 0x20
109 #define STATUS_SHELLOPEN (1<<4) // 0x10
110 #define STATUS_UNKNOWN3 (1<<3) // 0x08
111 #define STATUS_UNKNOWN2 (1<<2) // 0x04
112 #define STATUS_ROTATING (1<<1) // 0x02
113 #define STATUS_ERROR (1<<0) // 0x01
117 // 1x = 75 sectors per second
118 // PSXCLK = 1 sec in the ps
119 // so (PSXCLK / 75) = cdr read time (linuzappz)
120 #define cdReadTime (PSXCLK / 75)
122 static struct CdrStat stat;
124 static unsigned int msf2sec(char *msf) {
125 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
128 static void sec2msf(unsigned int s, char *msf) {
129 msf[0] = s / 75 / 60;
130 s = s - msf[0] * 75 * 60;
137 #define CDR_INT(eCycle) { \
138 psxRegs.interrupt |= (1 << PSXINT_CDR); \
139 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
140 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
141 new_dyna_set_event(PSXINT_CDR, eCycle); \
144 #define CDREAD_INT(eCycle) { \
145 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
146 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
147 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
148 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
151 #define CDRLID_INT(eCycle) { \
152 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
153 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
154 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
155 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
158 #define CDRPLAY_INT(eCycle) { \
159 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
160 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
161 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
162 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
165 #define StartReading(type, eCycle) { \
166 cdr.Reading = type; \
167 cdr.FirstSector = 1; \
169 AddIrqQueue(READ_ACK, eCycle); \
172 #define StopReading() { \
175 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
177 cdr.StatP &= ~STATUS_READ;\
180 #define StopCdda() { \
182 if (!Config.Cdda) CDR_stop(); \
183 cdr.StatP &= ~STATUS_PLAY; \
185 cdr.FastForward = 0; \
186 cdr.FastBackward = 0; \
187 /*SPU_registerCallback( SPUirq );*/ \
191 #define SetResultSize(size) { \
193 cdr.ResultC = size; \
194 cdr.ResultReady = 1; \
198 void cdrLidSeekInterrupt()
200 // turn back on checking
201 if( cdr.LidCheck == 0x10 )
206 // official lid close
207 else if( cdr.LidCheck == 0x30 )
210 cdr.StatP |= STATUS_ROTATING;
213 // GS CDX 3.3 - ~50 getlocp tries
214 CDRLID_INT( cdReadTime * 3 );
219 else if( cdr.LidCheck == 0x40 )
222 cdr.StatP &= ~STATUS_SHELLOPEN;
223 cdr.StatP &= ~STATUS_ROTATING;
226 // GS CDX 3.3 - ~50 getlocp tries
227 CDRLID_INT( cdReadTime * 3 );
232 else if( cdr.LidCheck == 0x50 )
234 // GameShark Lite: Start seeking ($42)
235 cdr.StatP |= STATUS_SEEK;
236 cdr.StatP |= STATUS_ROTATING;
237 cdr.StatP &= ~STATUS_ERROR;
240 CDRLID_INT( cdReadTime * 3 );
245 else if( cdr.LidCheck == 0x60 )
247 // GameShark Lite: Seek detection done ($02)
248 cdr.StatP &= ~STATUS_SEEK;
255 static void Check_Shell( int Irq )
257 // check case open/close
258 if (cdr.LidCheck > 0)
261 CDR_LOG( "LidCheck\n" );
264 // $20 = check lid state
265 if( cdr.LidCheck == 0x20 )
270 if (CDR_getStatus(&stat) != -1)
272 if (stat.Type == 0xff)
273 cdr.Stat = DiskError;
276 else if (stat.Status & STATUS_SHELLOPEN)
278 // Vib Ribbon: pre-CD swap
282 // GameShark Lite: Death if DiskError happens
284 // Vib Ribbon: Needs DiskError for CD swap
288 cdr.Stat = DiskError;
290 cdr.StatP |= STATUS_ERROR;
291 cdr.Result[0] |= STATUS_ERROR;
294 // GameShark Lite: Wants -exactly- $10
295 cdr.StatP |= STATUS_SHELLOPEN;
296 cdr.StatP &= ~STATUS_ROTATING;
299 CDRLID_INT( cdReadTime * 3 );
307 else if ( i & STATUS_SHELLOPEN )
309 cdr.StatP |= STATUS_ROTATING;
314 if( cdr.Stat == NoIntr )
315 cdr.Stat = Acknowledge;
317 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
320 // begin close-seek-ready cycle
321 CDRLID_INT( cdReadTime * 3 );
325 // GameShark Lite: Wants -exactly- $42, then $02
326 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
329 // case still closed - wait for recheck
332 CDRLID_INT( cdReadTime * 3 );
339 // GS CDX: clear all values but #1,#2
340 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
343 memset( cdr.Result, 0, 16 );
345 cdr.Result[0] = cdr.StatP;
348 // GS CDX: special return value
349 if( cdr.StatP & STATUS_SHELLOPEN )
351 cdr.Result[1] = 0x80;
355 if( cdr.Stat == NoIntr )
356 cdr.Stat = Acknowledge;
358 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
364 void Find_CurTrack() {
367 if (CDR_getTN(cdr.ResultTN) != -1) {
370 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
371 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
375 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
376 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
377 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
381 // find next track boundary - only need m:s accuracy
382 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
383 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
385 // Twisted Metal 4 - psx cdda pregap (2-sec)
386 // - fix in-game music
389 if( sect1 >= sect2 ) {
400 static void ReadTrack( u8 *time ) {
401 cdr.Prev[0] = itob( time[0] );
402 cdr.Prev[1] = itob( time[1] );
403 cdr.Prev[2] = itob( time[2] );
406 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
408 cdr.RErr = CDR_readTrack(cdr.Prev);
412 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
416 // Doom: Force rescheduling
424 if (CDR_getTN(cdr.ResultTN) != -1) {
427 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
428 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
430 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
431 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
432 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
436 // check if time matches track start (only need min, sec accuracy)
438 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
439 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
440 // skip pregap frames
441 if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
442 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
446 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
454 static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
455 static void Create_Fake_Subq()
457 u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
460 if (CDR_getTN(cdr.ResultTN) == -1) return;
461 if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
463 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
465 // last track - cd size
467 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
470 if( cdr.Play == TRUE ) {
471 temp_cur[0] = cdr.SetSectorPlay[0];
472 temp_cur[1] = cdr.SetSectorPlay[1];
473 temp_cur[2] = cdr.SetSectorPlay[2];
475 temp_cur[0] = btoi( cdr.Prev[0] );
476 temp_cur[1] = btoi( cdr.Prev[1] );
477 temp_cur[2] = btoi( cdr.Prev[2] );
480 fake_subq_real[0] = temp_cur[0];
481 fake_subq_real[1] = temp_cur[1];
482 fake_subq_real[2] = temp_cur[2];
484 temp_next[0] = cdr.ResultTD[2];
485 temp_next[1] = cdr.ResultTD[1];
486 temp_next[2] = cdr.ResultTD[0];
490 if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
491 fake_subq_change = 1;
496 if( pregap == 0 ) StopCdda();
499 //////////////////////////////////////////////////
500 //////////////////////////////////////////////////
503 if( cdr.CurTrack <= cdr.ResultTN[1] ) {
504 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
506 // last track - cd size
507 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
510 temp_start[0] = cdr.ResultTD[2];
511 temp_start[1] = cdr.ResultTD[1];
512 temp_start[2] = cdr.ResultTD[0];
516 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
517 temp_cur[0], temp_cur[1], temp_cur[2],
518 temp_start[0], temp_start[1], temp_start[2],
519 temp_next[0], temp_next[1], temp_next[2]);
524 // local time - pregap / real
525 diff = msf2sec(temp_cur) - msf2sec( temp_start );
529 sec2msf( -diff, fake_subq_local );
533 sec2msf( diff, fake_subq_local );
538 static void cdrPlayInterrupt_Autopause()
540 struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
543 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
544 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
550 Silhouette Mirage ($3)
554 if( cdr.CurTrack >= btoi( subq->TrackNumber ) )
559 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
560 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
563 if( !fake_subq_change )
566 fake_subq_change = 0;
569 if (cdr.Mode & MODE_AUTOPAUSE) {
571 CDR_LOG( "CDDA STOP\n" );
574 // Magic the Gathering
575 // - looping territory cdda
578 //cdr.ResultReady = 1;
579 //cdr.Stat = DataReady;
581 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
585 if (cdr.Mode & MODE_REPORT) {
586 // rearmed note: PCSX-Reloaded does this for every sector,
587 // but we try to get away with only track change here.
588 memset( cdr.Result, 0, 8 );
589 cdr.Result[0] |= 0x10;
593 CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
594 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
596 cdr.CurTrack = btoi( subq->TrackNumber );
598 // BIOS CD Player: data already BCD format
599 cdr.Result[1] = subq->TrackNumber;
600 cdr.Result[2] = subq->IndexNumber;
602 cdr.Result[3] = subq->AbsoluteAddress[0];
603 cdr.Result[4] = subq->AbsoluteAddress[1];
604 cdr.Result[5] = subq->AbsoluteAddress[2];
607 CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
608 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
612 cdr.Result[1] = itob(cdr.CurTrack);
613 cdr.Result[2] = itob(fake_subq_index);
615 cdr.Result[3] = itob( fake_subq_real[0] );
616 cdr.Result[4] = itob( fake_subq_real[1] );
617 cdr.Result[5] = itob( fake_subq_real[2] );
620 // Rayman: Logo freeze (resultready + dataready)
622 cdr.Stat = DataReady;
625 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
629 void cdrPlayInterrupt()
631 if( !cdr.Play ) return;
634 CDR_LOG( "CDDA - %d:%d:%d\n",
635 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
637 CDRPLAY_INT( cdReadTime );
639 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
640 cdrPlayInterrupt_Autopause();
642 cdr.SetSectorPlay[2]++;
643 if (cdr.SetSectorPlay[2] == 75) {
644 cdr.SetSectorPlay[2] = 0;
645 cdr.SetSectorPlay[1]++;
646 if (cdr.SetSectorPlay[1] == 60) {
647 cdr.SetSectorPlay[1] = 0;
648 cdr.SetSectorPlay[0]++;
655 void cdrInterrupt() {
657 unsigned char Irq = cdr.Irq;
672 cdr.StatP |= STATUS_ROTATING;
673 cdr.Result[0] = cdr.StatP;
674 cdr.Stat = Acknowledge;
679 cdr.Result[0] = cdr.StatP;
680 cdr.Stat = Acknowledge;
682 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
688 cdr.StatP |= STATUS_ROTATING;
689 cdr.Result[0] = cdr.StatP;
690 cdr.Stat = Acknowledge;
694 fake_subq_change = 0;
696 if( cdr.Seeked == FALSE ) {
697 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
702 Rayman: detect track changes
705 Twisted Metal 2: skip PREGAP + starting accurate SubQ
706 - plays tracks without retry play
708 Wild 9: skip PREGAP + starting accurate SubQ
709 - plays tracks without retry play
713 ReadTrack( cdr.SetSectorPlay );
716 // GameShark CD Player: Calls 2x + Play 2x
717 if( cdr.FastBackward || cdr.FastForward ) {
718 if( cdr.FastForward ) cdr.FastForward--;
719 if( cdr.FastBackward ) cdr.FastBackward--;
721 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
722 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
723 cdr.SetSectorPlay[0] = stat.Time[0];
724 cdr.SetSectorPlay[1] = stat.Time[1];
725 cdr.SetSectorPlay[2] = stat.Time[2];
733 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
735 // GameShark CD Player: Resume play
736 if( cdr.ParamC == 0 ) {
738 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
739 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
742 //CDR_play( cdr.SetSectorPlay );
746 // BIOS CD Player: Resume play
747 if( cdr.Param[0] == 0 ) {
749 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
750 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
753 //CDR_play( cdr.SetSectorPlay );
757 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
758 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
761 // BIOS CD Player: Allow track replaying
765 cdr.CurTrack = btoi( cdr.Param[0] );
767 if (CDR_getTN(cdr.ResultTN) != -1) {
769 if (cdr.CurTrack > cdr.ResultTN[1])
770 cdr.CurTrack = cdr.ResultTN[1];
772 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
773 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
774 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
775 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
780 ReadTrack( cdr.SetSectorPlay );
782 //CDR_play(cdr.SetSectorPlay);
790 // Vib Ribbon: gameplay checks flag
791 cdr.StatP &= ~STATUS_SEEK;
796 cdr.StatP |= STATUS_ROTATING;
797 cdr.Result[0] = cdr.StatP;
798 cdr.Stat = Acknowledge;
800 cdr.StatP |= STATUS_PLAY;
803 // BIOS player - set flag again
806 CDRPLAY_INT( cdReadTime );
812 cdr.StatP |= STATUS_ROTATING;
813 cdr.Result[0] = cdr.StatP;
817 // GameShark CD Player: Calls 2x + Play 2x
818 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
819 else cdr.FastForward++;
821 cdr.FastBackward = 0;
827 cdr.StatP |= STATUS_ROTATING;
828 cdr.Result[0] = cdr.StatP;
832 // GameShark CD Player: Calls 2x + Play 2x
833 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
834 else cdr.FastBackward++;
842 cdr.StatP |= STATUS_ROTATING;
843 cdr.Result[0] = cdr.StatP;
850 cdr.StatP &= ~STATUS_ROTATING;
851 cdr.Result[0] = cdr.StatP;
853 // cdr.Stat = Acknowledge;
855 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
860 cdr.Result[0] = cdr.StatP;
861 cdr.Stat = Acknowledge;
863 AddIrqQueue(CdlPause + 0x20, 0x800);
867 case CdlPause + 0x20:
869 cdr.StatP &= ~STATUS_READ;
870 cdr.StatP |= STATUS_ROTATING;
871 cdr.Result[0] = cdr.StatP;
877 cdr.StatP = STATUS_ROTATING;
878 cdr.Result[0] = cdr.StatP;
879 cdr.Stat = Acknowledge;
881 AddIrqQueue(CdlInit + 0x20, 0x800);
887 cdr.Result[0] = cdr.StatP;
894 cdr.StatP |= STATUS_ROTATING;
895 cdr.Result[0] = cdr.StatP;
896 cdr.Stat = Acknowledge;
901 cdr.StatP |= STATUS_ROTATING;
902 cdr.Result[0] = cdr.StatP;
903 cdr.Stat = Acknowledge;
908 cdr.StatP |= STATUS_ROTATING;
909 cdr.Result[0] = cdr.StatP;
910 cdr.Stat = Acknowledge;
915 cdr.StatP |= STATUS_ROTATING;
916 cdr.Result[0] = cdr.StatP;
917 cdr.Stat = Acknowledge;
922 cdr.StatP |= STATUS_ROTATING;
923 cdr.Result[0] = cdr.StatP;
924 cdr.Result[1] = cdr.Mode;
925 cdr.Result[2] = cdr.File;
926 cdr.Result[3] = cdr.Channel;
929 cdr.Stat = Acknowledge;
934 for (i = 0; i < 8; i++)
935 cdr.Result[i] = cdr.Transfer[i];
936 cdr.Stat = Acknowledge;
940 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
942 memset( cdr.Result, 0, 16 );
944 subq = (struct SubQ *)CDR_getBufferSub();
947 cdr.Result[0] = subq->TrackNumber;
948 cdr.Result[1] = subq->IndexNumber;
949 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
950 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
953 // subQ integrity check - data only (skip audio)
954 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
955 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
956 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
960 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
965 cdr.Result[0] = itob(cdr.CurTrack);
966 cdr.Result[1] = itob(fake_subq_index);
969 cdr.Result[2] = itob( fake_subq_local[0] );
970 cdr.Result[3] = itob( fake_subq_local[1] );
971 cdr.Result[4] = itob( fake_subq_local[2] );
974 cdr.Result[5] = itob( fake_subq_real[0] );
975 cdr.Result[6] = itob( fake_subq_real[1] );
976 cdr.Result[7] = itob( fake_subq_real[2] );
979 // redump.org - wipe time
980 /*if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
981 memset( cdr.Result+2, 0, 6 );
985 cdr.Stat = Acknowledge;
989 // 5-Star Racing: don't stop CDDA
991 // Vib Ribbon: CD swap
996 cdr.StatP |= STATUS_ROTATING;
997 cdr.Result[0] = cdr.StatP;
998 if (CDR_getTN(cdr.ResultTN) == -1) {
999 cdr.Stat = DiskError;
1000 cdr.Result[0] |= STATUS_ERROR;
1002 cdr.Stat = Acknowledge;
1003 cdr.Result[1] = itob(cdr.ResultTN[0]);
1004 cdr.Result[2] = itob(cdr.ResultTN[1]);
1010 cdr.Track = btoi(cdr.Param[0]);
1012 cdr.StatP |= STATUS_ROTATING;
1013 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1014 cdr.Stat = DiskError;
1015 cdr.Result[0] |= STATUS_ERROR;
1017 cdr.Stat = Acknowledge;
1018 cdr.Result[0] = cdr.StatP;
1019 cdr.Result[1] = itob(cdr.ResultTD[2]);
1020 cdr.Result[2] = itob(cdr.ResultTD[1]);
1021 cdr.Result[3] = itob(cdr.ResultTD[0]);
1027 cdr.StatP |= STATUS_ROTATING;
1028 cdr.Result[0] = cdr.StatP;
1029 cdr.StatP |= STATUS_SEEK;
1030 cdr.Stat = Acknowledge;
1033 Crusaders of Might and Magic = 0.5x-4x
1034 - fix cutscene speech start
1036 Eggs of Steel = 2x-?
1040 - fix cutscene speech
1045 AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
1048 case CdlSeekL + 0x20:
1050 cdr.StatP |= STATUS_ROTATING;
1051 cdr.StatP &= ~STATUS_SEEK;
1052 cdr.Result[0] = cdr.StatP;
1054 cdr.Stat = Complete;
1057 // Mega Man Legends 2: must update read cursor for getlocp
1058 ReadTrack( cdr.SetSector );
1063 cdr.StatP |= STATUS_ROTATING;
1064 cdr.Result[0] = cdr.StatP;
1065 cdr.StatP |= STATUS_SEEK;
1066 cdr.Stat = Acknowledge;
1067 AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
1070 case CdlSeekP + 0x20:
1072 cdr.StatP |= STATUS_ROTATING;
1073 cdr.StatP &= ~STATUS_SEEK;
1074 cdr.Result[0] = cdr.StatP;
1075 cdr.Stat = Complete;
1078 // GameShark Music Player
1079 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1081 // Tomb Raider 2: must update read cursor for getlocp
1083 ReadTrack( cdr.SetSectorPlay );
1087 cdr.Stat = Acknowledge;
1088 switch (cdr.Param[0]) {
1089 case 0x20: // System Controller ROM Version
1091 memcpy(cdr.Result, Test20, 4);
1095 memcpy(cdr.Result, Test22, 4);
1097 case 0x23: case 0x24:
1099 memcpy(cdr.Result, Test23, 4);
1106 cdr.StatP |= STATUS_ROTATING;
1107 cdr.Result[0] = cdr.StatP;
1108 cdr.Stat = Acknowledge;
1109 AddIrqQueue(CdlID + 0x20, 0x800);
1115 if (CDR_getStatus(&stat) == -1) {
1116 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1117 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1120 if (stat.Type == 2) {
1122 cdr.Result[0] = 0x08;
1123 cdr.Result[1] = 0x10;
1125 cdr.Result[1] |= 0x80;
1129 if (CdromId[0] == '\0') {
1130 cdr.Result[0] = 0x00;
1131 cdr.Result[1] = 0x80;
1134 cdr.Result[0] = 0x08;
1135 cdr.Result[1] = 0x00;
1140 cdr.Result[2] = 0x00;
1141 cdr.Result[3] = 0x00;
1142 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1143 cdr.Stat = Complete;
1148 cdr.StatP = STATUS_ROTATING;
1149 cdr.Result[0] = cdr.StatP;
1150 cdr.Stat = Acknowledge;
1155 cdr.StatP |= STATUS_ROTATING;
1156 cdr.Result[0] = cdr.StatP;
1157 cdr.Stat = Acknowledge;
1158 AddIrqQueue(CdlReadT + 0x20, 0x800);
1161 case CdlReadT + 0x20:
1163 cdr.StatP |= STATUS_ROTATING;
1164 cdr.Result[0] = cdr.StatP;
1165 cdr.Stat = Complete;
1170 cdr.StatP |= STATUS_ROTATING;
1171 cdr.Result[0] = cdr.StatP;
1172 cdr.Stat = Acknowledge;
1173 AddIrqQueue(CdlReadToc + 0x20, 0x800);
1176 case CdlReadToc + 0x20:
1178 cdr.StatP |= STATUS_ROTATING;
1179 cdr.Result[0] = cdr.StatP;
1180 cdr.Stat = Complete;
1185 /* SetResultSize(1);
1191 cdr.Result[0] = cdr.StatP;
1193 */ AddIrqQueue(CdlPause, 0x800);
1197 if (!cdr.Reading) return;
1200 // Fighting Force 2 - update subq time immediately
1202 ReadTrack( cdr.SetSector );
1205 // Crusaders of Might and Magic - update getlocl now
1206 // - fixes cutscene speech
1208 u8 *buf = CDR_getBuffer();
1209 memcpy(cdr.Transfer, buf, 8);
1214 Duke Nukem: Land of the Babes - seek then delay read for one frame
1221 cdr.StatP |= STATUS_SEEK;
1222 cdr.StatP &= ~STATUS_READ;
1224 // Crusaders of Might and Magic - use short time
1225 // - fix cutscene speech (startup)
1227 // ??? - use more accurate seek time later
1228 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1230 cdr.StatP |= STATUS_READ;
1231 cdr.StatP &= ~STATUS_SEEK;
1233 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1237 cdr.StatP |= STATUS_ROTATING;
1238 cdr.Result[0] = cdr.StatP;
1239 cdr.Stat = Acknowledge;
1246 cdr.Stat = Complete;
1252 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1253 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1257 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1261 void cdrReadInterrupt() {
1267 if (cdr.Irq || cdr.Stat) {
1273 CDR_LOG("cdrReadInterrupt() Log: KEY END");
1278 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1279 cdr.StatP &= ~STATUS_SEEK;
1280 cdr.Result[0] = cdr.StatP;
1282 ReadTrack( cdr.SetSector );
1284 buf = CDR_getBuffer();
1288 if (cdr.RErr == -1) {
1290 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1292 memset(cdr.Transfer, 0, DATA_SIZE);
1293 cdr.Stat = DiskError;
1294 cdr.Result[0] |= STATUS_ERROR;
1295 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1299 memcpy(cdr.Transfer, buf, DATA_SIZE);
1300 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1304 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1307 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1308 // Firemen 2: Multi-XA files - briefings, cutscenes
1309 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1310 cdr.File = cdr.Transfer[4 + 0];
1311 cdr.Channel = cdr.Transfer[4 + 1];
1314 if ((cdr.Transfer[4 + 2] & 0x4) &&
1315 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1316 (cdr.Transfer[4 + 0] == cdr.File)) {
1317 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1320 SPU_playADPCMchannel(&cdr.Xa);
1321 cdr.FirstSector = 0;
1324 // Crash Team Racing: music, speech
1326 // signal ADPCM data ready
1327 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
1329 else cdr.FirstSector = -1;
1334 if (cdr.SetSector[2] == 75) {
1335 cdr.SetSector[2] = 0;
1337 if (cdr.SetSector[1] == 60) {
1338 cdr.SetSector[1] = 0;
1345 // G-Police: Don't autopause ADPCM even if mode set (music)
1346 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1347 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
1349 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1351 // AddIrqQueue(AUTOPAUSE, 0x2000);
1352 AddIrqQueue(CdlPause, 0x2000);
1355 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1359 Croc 2: $40 - only FORM1 (*)
1360 Judge Dredd: $C8 - only FORM1 (*)
1361 Sim Theme Park - no adpcm at all (zero)
1364 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1365 cdr.Stat = DataReady;
1367 // Breath of Fire 3 - fix inn sleeping
1368 // Rockman X5 - no music restart problem
1371 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1378 bit 0 - 0 REG1 command send / 1 REG1 data read
1379 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1383 bit 5 - 1 result ready
1385 bit 7 - 1 command being processed
1388 unsigned char cdrRead0(void) {
1389 if (cdr.ResultReady)
1397 // cdr.Ctrl &= ~0x40;
1399 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1403 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1406 return psxHu8(0x1800) = cdr.Ctrl;
1411 0 - to send a command / 1 - to get the result
1414 void cdrWrite0(unsigned char rt) {
1416 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1418 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1423 cdr.ResultReady = 0;
1427 unsigned char cdrRead1(void) {
1428 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
1429 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1430 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1432 if (cdr.ResultP == cdr.ResultC)
1433 cdr.ResultReady = 0;
1438 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1440 return psxHu8(0x1801);
1443 void cdrWrite1(unsigned char rt) {
1447 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1451 // Tekken: CDXA fade-out
1452 if( (cdr.Ctrl & 3) == 3 ) {
1453 //cdr.AttenuatorRight[0] = rt;
1457 // psxHu8(0x1801) = rt;
1462 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1464 SysPrintf(" Param[%d] = {", cdr.ParamC);
1465 for (i = 0; i < cdr.ParamC; i++)
1466 SysPrintf(" %x,", cdr.Param[i]);
1473 if (cdr.Ctrl & 0x1) return;
1479 AddIrqQueue(cdr.Cmd, 0x800);
1486 // Twisted Metal 3 - fix music
1487 AddIrqQueue(cdr.Cmd, 0x800);
1493 for (i = 0; i < 3; i++)
1494 cdr.SetSector[i] = btoi(cdr.Param[i]);
1495 cdr.SetSector[3] = 0;
1498 if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1499 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1504 AddIrqQueue(cdr.Cmd, 0x800);
1508 // Vib Ribbon: try same track again
1511 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1512 if (CDR_getTN(cdr.ResultTN) != -1) {
1513 if (cdr.CurTrack > cdr.ResultTN[1])
1514 cdr.CurTrack = cdr.ResultTN[1];
1515 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1516 int tmp = cdr.ResultTD[2];
1517 cdr.ResultTD[2] = cdr.ResultTD[0];
1518 cdr.ResultTD[0] = tmp;
1519 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1522 } else if (!Config.Cdda) {
1523 CDR_play(cdr.SetSector);
1526 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1527 // - fixes ribbon timing + music CD mode
1529 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1534 cdr.StatP |= STATUS_SEEK;
1535 cdr.StatP &= ~STATUS_ROTATING;
1539 AddIrqQueue(cdr.Cmd, 0x800);
1543 //if (cdr.CurTrack < 0xaa)
1547 AddIrqQueue(cdr.Cmd, 0x800);
1551 //if (cdr.CurTrack > 1)
1555 AddIrqQueue(cdr.Cmd, 0x800);
1563 StartReading(1, 0x800);
1571 AddIrqQueue(cdr.Cmd, 0x800);
1575 // GameShark CD Player: Reset CDDA to track start
1576 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1577 cdr.SetSectorPlay[0] = stat.Time[0];
1578 cdr.SetSectorPlay[1] = stat.Time[1];
1579 cdr.SetSectorPlay[2] = stat.Time[2];
1584 // grab time for current track
1585 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1587 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1588 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1589 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1597 AddIrqQueue(cdr.Cmd, 0x800);
1602 GameShark CD Player: save time for resume
1604 Twisted Metal - World Tour: don't save times for DATA reads
1605 - Only get 1 chance to do this right
1607 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1608 cdr.SetSectorPlay[0] = stat.Time[0];
1609 cdr.SetSectorPlay[1] = stat.Time[1];
1610 cdr.SetSectorPlay[2] = stat.Time[2];
1619 Gundam Battle Assault 2: much slower (*)
1620 - Fixes boot, gameplay
1622 Hokuto no Ken 2: slower
1623 - Fixes intro + subtitles
1625 InuYasha - Feudal Fairy Tale: slower
1628 AddIrqQueue(cdr.Cmd, cdReadTime * 3);
1637 AddIrqQueue(cdr.Cmd, 0x800);
1644 AddIrqQueue(cdr.Cmd, 0x800);
1646 // Duke Nukem - Time to Kill
1647 // - do not directly set cd-xa volume
1648 //SPU_writeRegister( H_CDLeft, 0x0000 );
1649 //SPU_writeRegister( H_CDRight, 0x0000 );
1656 AddIrqQueue(cdr.Cmd, 0x800);
1658 // Duke Nukem - Time to Kill
1659 // - do not directly set cd-xa volume
1660 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1661 //SPU_writeRegister( H_CDRight, 0x7f00 );
1665 cdr.File = cdr.Param[0];
1666 cdr.Channel = cdr.Param[1];
1669 AddIrqQueue(cdr.Cmd, 0x800);
1674 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1676 cdr.Mode = cdr.Param[0];
1679 AddIrqQueue(cdr.Cmd, 0x800);
1681 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1682 // - fixes choppy movie sound
1683 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1690 AddIrqQueue(cdr.Cmd, 0x800);
1697 // Crusaders of Might and Magic - cutscene speech
1698 AddIrqQueue(cdr.Cmd, 0x800);
1705 // GameShark CDX / Lite Player: pretty narrow time window
1706 // - doesn't always work due to time inprecision
1707 //AddIrqQueue(cdr.Cmd, 0x28);
1709 // Tomb Raider 2 - cdda
1710 //AddIrqQueue(cdr.Cmd, 0x40);
1712 // rearmed: the above works in pcsxr-svn, but breaks here
1713 // (TOCA world touring cars), perhaps some other code is not merged yet
1714 AddIrqQueue(cdr.Cmd, 0x1000);
1720 //AddIrqQueue(cdr.Cmd, 0x800);
1722 // GameShark CDX CD Player: very long time
1723 AddIrqQueue(cdr.Cmd, 0x100000);
1729 AddIrqQueue(cdr.Cmd, 0x800);
1733 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1736 AddIrqQueue(cdr.Cmd, 0x800);
1744 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1748 // Tomb Raider 2 - reset cdda
1752 AddIrqQueue(cdr.Cmd, 0x800);
1755 // Destruction Derby: read TOC? GetTD after this
1759 AddIrqQueue(cdr.Cmd, 0x800);
1765 AddIrqQueue(cdr.Cmd, 0x800);
1771 AddIrqQueue(cdr.Cmd, 0x800);
1779 StartReading(2, 0x800);
1785 AddIrqQueue(cdr.Cmd, 0x800);
1790 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1794 if (cdr.Stat != NoIntr) {
1795 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1799 unsigned char cdrRead2(void) {
1802 if (cdr.Readed == 0) {
1805 ret = *cdr.pTransfer++;
1809 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1814 void cdrWrite2(unsigned char rt) {
1816 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1819 // Tekken: CDXA fade-out
1820 if( (cdr.Ctrl & 3) == 2 ) {
1821 //cdr.AttenuatorLeft[0] = rt;
1823 else if( (cdr.Ctrl & 3) == 3 ) {
1824 //cdr.AttenuatorRight[1] = rt;
1828 if (cdr.Ctrl & 0x1) {
1833 cdr.ResultReady = 1; //0;
1834 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1841 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
1842 cdr.Param[cdr.ParamP++] = rt;
1847 unsigned char cdrRead3(void) {
1850 psxHu8(0x1803) = cdr.Stat | 0xE0;
1852 psxHu8(0x1803) = 0xff;
1857 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1859 return psxHu8(0x1803);
1862 void cdrWrite3(unsigned char rt) {
1864 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1867 // Tekken: CDXA fade-out
1868 if( (cdr.Ctrl & 3) == 2 ) {
1869 cdr.AttenuatorLeft[1] = rt;
1871 else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1873 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1874 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1875 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1880 // GameShark CDX CD Player: Irq timing mania
1882 cdr.Irq != 0 && cdr.Irq != 0xff &&
1883 cdr.ResultReady == 0 ) {
1885 // GS CDX: ~0x28 cycle timing - way too precise
1886 if( cdr.Irq == CdlGetlocP ) {
1889 psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1894 if (rt == 0x07 && cdr.Ctrl & 0x1) {
1897 if (cdr.Irq == 0xff) {
1902 if (cdr.Reading && !cdr.ResultReady) {
1903 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1909 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1911 cdr.pTransfer = cdr.Transfer;
1913 switch (cdr.Mode & 0x30) {
1914 case MODE_SIZE_2328:
1916 cdr.pTransfer += 12;
1919 case MODE_SIZE_2340:
1929 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1934 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1940 if (cdr.Readed == 0) {
1942 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1947 cdsize = (bcr & 0xffff) * 4;
1949 // Ape Escape: bcr = 0001 / 0000
1953 switch (cdr.Mode & 0x30) {
1954 case 0x00: cdsize = 2048; break;
1955 case MODE_SIZE_2328: cdsize = 2328; break;
1956 case MODE_SIZE_2340: cdsize = 2340; break;
1961 ptr = (u8 *)PSXM(madr);
1964 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1970 GS CDX: Enhancement CD crash
1973 - Spams DMA3 and gets buffer overrun
1976 if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
1978 // avoid crash - probably should wrap here
1979 //memcpy(ptr, cdr.pTransfer, cdsize);
1983 memcpy(ptr, cdr.pTransfer, cdsize);
1986 psxCpu->Clear(madr, cdsize / 4);
1987 cdr.pTransfer += cdsize;
1991 if( chcr == 0x11400100 ) {
1992 CDRDMA_INT( (cdsize/4) / 4 );
1994 else if( chcr == 0x11000000 ) {
1995 CDRDMA_INT( (cdsize/4) * 1 );
2001 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2006 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2010 void cdrDmaInterrupt()
2012 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2017 memset(&cdr, 0, sizeof(cdr));
2023 int cdrFreeze(gzFile f, int Mode) {
2031 gzfreeze(&cdr, sizeof(cdr));
2034 tmp = cdr.pTransfer - cdr.Transfer;
2036 gzfreeze(&tmp, sizeof(tmp));
2039 cdr.pTransfer = cdr.Transfer + tmp;
2044 void LidInterrupt() {
2045 cdr.LidCheck = 0x20; // start checker
2047 CDRLID_INT( cdReadTime * 3 );
2049 // generate interrupt if none active - open or close
2050 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2053 AddIrqQueue(CdlNop, 0x800);