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 02110-1301 USA. *
18 ***************************************************************************/
21 * Handles all CD-ROM registers and functions.
27 #include "arm_features.h"
31 #define CDR_LOG SysPrintf
36 #define CDR_LOG_I SysPrintf
38 #define CDR_LOG_I(...)
41 #define CDR_LOG_IO SysPrintf
43 #define CDR_LOG_IO(...)
45 //#define CDR_LOG_CMD_IRQ
48 static unsigned char *pTransfer;
50 /* CD-ROM magic numbers */
64 #define CdlSetfilter 13
74 #define CdlSetclock 23
75 #define CdlGetclock 24
83 char *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
94 unsigned char Test04[] = { 0 };
95 unsigned char Test05[] = { 0 };
96 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
97 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
98 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
104 #define Acknowledge 3
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
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
130 #define ERROR_NOTREADY (1<<7) // 0x80
131 #define ERROR_INVALIDCMD (1<<6) // 0x40
132 #define ERROR_INVALIDARG (1<<5) // 0x20
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)
140 DRIVESTATE_STANDBY = 0,
142 DRIVESTATE_RESCAN_CD,
143 DRIVESTATE_PREPARE_CD,
153 static struct CdrStat stat;
155 static unsigned int msf2sec(const u8 *msf) {
156 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
159 // for that weird psemu API..
160 static unsigned int fsm2sec(const u8 *msf) {
161 return ((msf[2] * 60 + msf[1]) * 75) + msf[0];
164 static void sec2msf(unsigned int s, u8 *msf) {
165 msf[0] = s / 75 / 60;
166 s = s - msf[0] * 75 * 60;
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); \
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); \
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); \
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); \
204 #define StopReading() { \
207 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
209 cdr.StatP &= ~(STATUS_READ|STATUS_SEEK);\
212 #define StopCdda() { \
214 if (!Config.Cdda) CDR_stop(); \
215 cdr.StatP &= ~STATUS_PLAY; \
217 cdr.FastForward = 0; \
218 cdr.FastBackward = 0; \
219 /*SPU_registerCallback( SPUirq );*/ \
223 #define SetResultSize(size) { \
225 cdr.ResultC = size; \
226 cdr.ResultReady = 1; \
229 static void setIrq(void)
231 if (cdr.Stat & cdr.Reg2)
232 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
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)
237 void cdrLidSeekInterrupt()
239 switch (cdr.DriveState) {
241 case DRIVESTATE_STANDBY:
242 cdr.StatP &= ~STATUS_SEEK;
244 if (CDR_getStatus(&stat) == -1)
247 if (stat.Status & STATUS_SHELLOPEN)
250 cdr.DriveState = DRIVESTATE_LID_OPEN;
255 case DRIVESTATE_LID_OPEN:
256 if (CDR_getStatus(&stat) == -1)
257 stat.Status &= ~STATUS_SHELLOPEN;
260 if (!(cdr.StatP & STATUS_SHELLOPEN)) {
262 cdr.StatP |= STATUS_SHELLOPEN;
264 // could generate error irq here, but real hardware
265 // only sometimes does that
266 // (not done when lots of commands are sent?)
268 CDRLID_INT(cdReadTime * 30);
271 else if (cdr.StatP & STATUS_ROTATING) {
272 cdr.StatP &= ~STATUS_ROTATING;
274 else if (!(stat.Status & STATUS_SHELLOPEN)) {
278 // cdr.StatP STATUS_SHELLOPEN is "sticky"
279 // and is only cleared by CdlNop
281 cdr.DriveState = DRIVESTATE_RESCAN_CD;
282 CDRLID_INT(cdReadTime * 105);
287 CDRLID_INT(cdReadTime * 3);
290 case DRIVESTATE_RESCAN_CD:
291 cdr.StatP |= STATUS_ROTATING;
292 cdr.DriveState = DRIVESTATE_PREPARE_CD;
294 // this is very long on real hardware, over 6 seconds
295 // make it a bit faster here...
296 CDRLID_INT(cdReadTime * 150);
299 case DRIVESTATE_PREPARE_CD:
300 cdr.StatP |= STATUS_SEEK;
302 cdr.DriveState = DRIVESTATE_STANDBY;
303 CDRLID_INT(cdReadTime * 26);
308 static void Find_CurTrack(const u8 *time)
312 current = msf2sec(time);
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)
322 static void generate_subq(const u8 *time)
324 unsigned char start[3], next[3];
325 unsigned int this_s, start_s, next_s, pregap;
328 CDR_getTD(cdr.CurTrack, start);
329 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
331 CDR_getTD(cdr.CurTrack + 1, next);
334 // last track - cd size
336 next[0] = cdr.SetSectorEnd[2];
337 next[1] = cdr.SetSectorEnd[1];
338 next[2] = cdr.SetSectorEnd[0];
341 this_s = msf2sec(time);
342 start_s = fsm2sec(start);
343 next_s = fsm2sec(next);
345 cdr.TrackChanged = FALSE;
347 if (next_s - this_s < pregap) {
348 cdr.TrackChanged = TRUE;
355 relative_s = this_s - start_s;
356 if (relative_s < 0) {
358 relative_s = -relative_s;
360 sec2msf(relative_s, cdr.subq.Relative);
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]);
371 static void ReadTrack(const u8 *time) {
372 unsigned char tmp[3];
376 tmp[0] = itob(time[0]);
377 tmp[1] = itob(time[1]);
378 tmp[2] = itob(time[2]);
380 if (memcmp(cdr.Prev, tmp, 3) == 0)
383 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
385 cdr.RErr = CDR_readTrack(tmp);
386 memcpy(cdr.Prev, tmp, 3);
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);
401 CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
402 tmp[0], tmp[1], tmp[2]);
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]);
415 static void AddIrqQueue(unsigned short irq, unsigned long ecycle) {
417 if (irq == cdr.Irq || irq + 0x100 == cdr.Irq) {
423 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
432 static void cdrPlayInterrupt_Autopause()
434 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
435 CDR_LOG( "CDDA STOP\n" );
437 // Magic the Gathering
438 // - looping territory cdda
441 //cdr.ResultReady = 1;
442 //cdr.Stat = DataReady;
448 else if (cdr.Mode & MODE_REPORT) {
450 cdr.Result[0] = cdr.StatP;
451 cdr.Result[1] = cdr.subq.Track;
452 cdr.Result[2] = cdr.subq.Index;
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];
460 cdr.Result[3] = cdr.subq.Absolute[0];
461 cdr.Result[4] = cdr.subq.Absolute[1];
462 cdr.Result[5] = cdr.subq.Absolute[2];
468 // Rayman: Logo freeze (resultready + dataready)
470 cdr.Stat = DataReady;
478 void cdrPlayInterrupt()
480 if (cdr.Seeked == SEEK_PENDING) {
482 CDR_LOG_I("cdrom: seek stat hack\n");
487 cdr.StatP |= STATUS_ROTATING;
488 cdr.StatP &= ~STATUS_SEEK;
489 cdr.Result[0] = cdr.StatP;
490 cdr.Seeked = SEEK_DONE;
496 if (cdr.SetlocPending) {
497 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
498 cdr.SetlocPending = 0;
500 Find_CurTrack(cdr.SetSectorPlay);
501 ReadTrack(cdr.SetSectorPlay);
502 cdr.TrackChanged = FALSE;
505 if (!cdr.Play) return;
507 CDR_LOG( "CDDA - %d:%d:%d\n",
508 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
510 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
512 cdr.TrackChanged = TRUE;
515 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
516 cdrPlayInterrupt_Autopause();
518 if (!cdr.Play) return;
520 cdr.SetSectorPlay[2]++;
521 if (cdr.SetSectorPlay[2] == 75) {
522 cdr.SetSectorPlay[2] = 0;
523 cdr.SetSectorPlay[1]++;
524 if (cdr.SetSectorPlay[1] == 60) {
525 cdr.SetSectorPlay[1] = 0;
526 cdr.SetSectorPlay[0]++;
530 CDRMISC_INT(cdReadTime);
532 // update for CdlGetlocP/autopause
533 generate_subq(cdr.SetSectorPlay);
536 void cdrInterrupt() {
538 int no_busy_error = 0;
539 int start_rotating = 0;
545 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
554 cdr.Result[0] = cdr.StatP;
555 cdr.Stat = Acknowledge;
557 if (cdr.IrqRepeated) {
559 if (cdr.eCycle > psxRegs.cycle) {
569 // TOOD: sometimes/always return error?
573 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
574 cdr.StatP &= ~STATUS_SHELLOPEN;
584 if (cdr.Seeked == SEEK_PENDING) {
585 // XXX: wrong, should seek instead..
586 cdr.Seeked = SEEK_DONE;
588 if (cdr.SetlocPending) {
589 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
590 cdr.SetlocPending = 0;
594 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
596 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
597 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
598 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
602 int track = btoi( cdr.Param[0] );
604 if (track <= cdr.ResultTN[1])
605 cdr.CurTrack = track;
607 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
609 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
610 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
611 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
612 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
617 Rayman: detect track changes
620 Twisted Metal 2: skip PREGAP + starting accurate SubQ
621 - plays tracks without retry play
623 Wild 9: skip PREGAP + starting accurate SubQ
624 - plays tracks without retry play
626 Find_CurTrack(cdr.SetSectorPlay);
627 ReadTrack(cdr.SetSectorPlay);
628 cdr.TrackChanged = FALSE;
631 CDR_play(cdr.SetSectorPlay);
633 // Vib Ribbon: gameplay checks flag
634 cdr.StatP &= ~STATUS_SEEK;
635 cdr.Result[0] = cdr.StatP;
637 cdr.StatP |= STATUS_PLAY;
639 // BIOS player - set flag again
642 CDRMISC_INT( cdReadTime );
647 // TODO: error 80 if stopped
650 // GameShark CD Player: Calls 2x + Play 2x
651 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
652 else cdr.FastForward++;
654 cdr.FastBackward = 0;
660 // GameShark CD Player: Calls 2x + Play 2x
661 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
662 else cdr.FastBackward++;
668 if (cdr.DriveState != DRIVESTATE_STOPPED) {
669 error = ERROR_INVALIDARG;
672 AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
676 case CdlStandby + 0x100:
682 // grab time for current track
683 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
685 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
686 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
687 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
694 if (cdr.DriveState == DRIVESTATE_STANDBY)
695 delay = cdReadTime * 30 / 2;
697 cdr.DriveState = DRIVESTATE_STOPPED;
698 AddIrqQueue(CdlStop + 0x100, delay);
701 case CdlStop + 0x100:
702 cdr.StatP &= ~STATUS_ROTATING;
703 cdr.Result[0] = cdr.StatP;
709 Gundam Battle Assault 2: much slower (*)
710 - Fixes boot, gameplay
712 Hokuto no Ken 2: slower
713 - Fixes intro + subtitles
715 InuYasha - Feudal Fairy Tale: slower
718 AddIrqQueue(CdlPause + 0x100, cdReadTime * 3);
722 case CdlPause + 0x100:
723 cdr.StatP &= ~STATUS_READ;
724 cdr.Result[0] = cdr.StatP;
729 AddIrqQueue(CdlInit + 0x100, cdReadTime * 6);
734 case CdlInit + 0x100:
747 cdr.File = cdr.Param[0];
748 cdr.Channel = cdr.Param[1];
757 cdr.Result[1] = cdr.Mode;
758 cdr.Result[2] = cdr.File;
759 cdr.Result[3] = cdr.Channel;
767 memcpy(cdr.Result, cdr.Transfer, 8);
772 memcpy(&cdr.Result, &cdr.subq, 8);
774 if (!cdr.Play && !cdr.Reading)
775 cdr.Result[1] = 0; // HACK?
778 case CdlReadT: // SetSession?
780 AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
784 case CdlReadT + 0x100:
790 if (CDR_getTN(cdr.ResultTN) == -1) {
791 cdr.Stat = DiskError;
792 cdr.Result[0] |= STATUS_ERROR;
794 cdr.Stat = Acknowledge;
795 cdr.Result[1] = itob(cdr.ResultTN[0]);
796 cdr.Result[2] = itob(cdr.ResultTN[1]);
801 cdr.Track = btoi(cdr.Param[0]);
803 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
804 cdr.Stat = DiskError;
805 cdr.Result[0] |= STATUS_ERROR;
807 cdr.Stat = Acknowledge;
808 cdr.Result[0] = cdr.StatP;
809 cdr.Result[1] = itob(cdr.ResultTD[2]);
810 cdr.Result[2] = itob(cdr.ResultTD[1]);
811 cdr.Result[3] = itob(cdr.ResultTD[0]);
819 cdr.StatP |= STATUS_SEEK;
822 Crusaders of Might and Magic = 0.5x-4x
823 - fix cutscene speech start
829 - fix cutscene speech
834 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
835 cdr.Seeked = SEEK_PENDING;
840 switch (cdr.Param[0]) {
841 case 0x20: // System Controller ROM Version
843 memcpy(cdr.Result, Test20, 4);
847 memcpy(cdr.Result, Test22, 4);
849 case 0x23: case 0x24:
851 memcpy(cdr.Result, Test23, 4);
858 AddIrqQueue(CdlID + 0x100, 20480);
863 cdr.Result[0] = cdr.StatP;
868 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
869 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
870 cdr.Result[1] = 0xc0;
874 cdr.Result[1] |= 0x10;
875 if (CdromId[0] == '\0')
876 cdr.Result[1] |= 0x80;
878 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
880 /* This adds the string "PCSX" in Playstation bios boot screen */
881 memcpy((char *)&cdr.Result[4], "PCSX", 4);
886 // yes, it really sets STATUS_SHELLOPEN
887 cdr.StatP |= STATUS_SHELLOPEN;
888 cdr.DriveState = DRIVESTATE_RESCAN_CD;
896 CDR_LOG_I("got CdlGetQ\n");
900 AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
905 case CdlReadToc + 0x100:
912 if (cdr.SetlocPending) {
913 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
914 cdr.SetlocPending = 0;
916 Find_CurTrack(cdr.SetSectorPlay);
918 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
919 // Read* acts as play for cdda tracks in cdda mode
925 // Fighting Force 2 - update subq time immediately
927 ReadTrack(cdr.SetSectorPlay);
930 // Crusaders of Might and Magic - update getlocl now
931 // - fixes cutscene speech
933 u8 *buf = CDR_getBuffer();
935 memcpy(cdr.Transfer, buf, 8);
939 Duke Nukem: Land of the Babes - seek then delay read for one frame
941 C-12 - Final Resistance - doesn't like seek
944 if (cdr.Seeked != SEEK_DONE) {
945 cdr.StatP |= STATUS_SEEK;
946 cdr.StatP &= ~STATUS_READ;
948 // Crusaders of Might and Magic - use short time
949 // - fix cutscene speech (startup)
951 // ??? - use more accurate seek time later
952 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
954 cdr.StatP |= STATUS_READ;
955 cdr.StatP &= ~STATUS_SEEK;
957 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
960 cdr.Result[0] = cdr.StatP;
965 CDR_LOG_I("Invalid command: %02x\n", Irq);
966 error = ERROR_INVALIDCMD;
971 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
972 cdr.Result[1] = error;
973 cdr.Stat = DiskError;
977 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
978 cdr.DriveState = DRIVESTATE_STANDBY;
979 cdr.StatP |= STATUS_ROTATING;
982 if (!no_busy_error) {
983 switch (cdr.DriveState) {
984 case DRIVESTATE_LID_OPEN:
985 case DRIVESTATE_RESCAN_CD:
986 case DRIVESTATE_PREPARE_CD:
988 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
989 cdr.Result[1] = ERROR_NOTREADY;
990 cdr.Stat = DiskError;
999 #ifdef CDR_LOG_CMD_IRQ
1002 SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
1003 !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
1004 for (i = 0; i < cdr.ResultC; i++)
1005 SysPrintf("%02x ", cdr.Result[i]);
1012 #define ssat32_to_16(v) \
1013 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1015 #define ssat32_to_16(v) do { \
1016 if (v < -32768) v = -32768; \
1017 else if (v > 32767) v = 32767; \
1021 void cdrAttenuate(s16 *buf, int samples, int stereo)
1024 int ll = cdr.AttenuatorLeftToLeft;
1025 int lr = cdr.AttenuatorLeftToRight;
1026 int rl = cdr.AttenuatorRightToLeft;
1027 int rr = cdr.AttenuatorRightToRight;
1029 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1032 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1036 for (i = 0; i < samples; i++) {
1039 l = (l * ll + r * rl) >> 7;
1040 r = (r * rr + l * lr) >> 7;
1048 for (i = 0; i < samples; i++) {
1050 l = l * (ll + rl) >> 7;
1051 //r = r * (rr + lr) >> 7;
1059 void cdrReadInterrupt() {
1065 if (cdr.Irq || cdr.Stat) {
1066 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1073 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1074 cdr.StatP &= ~STATUS_SEEK;
1075 cdr.Result[0] = cdr.StatP;
1076 cdr.Seeked = SEEK_DONE;
1078 ReadTrack(cdr.SetSectorPlay);
1080 buf = CDR_getBuffer();
1084 if (cdr.RErr == -1) {
1085 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1086 memset(cdr.Transfer, 0, DATA_SIZE);
1087 cdr.Stat = DiskError;
1088 cdr.Result[0] |= STATUS_ERROR;
1089 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1093 memcpy(cdr.Transfer, buf, DATA_SIZE);
1094 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1097 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1099 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1100 // Firemen 2: Multi-XA files - briefings, cutscenes
1101 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1102 cdr.File = cdr.Transfer[4 + 0];
1103 cdr.Channel = cdr.Transfer[4 + 1];
1106 if((cdr.Transfer[4 + 2] & 0x4) &&
1107 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1108 (cdr.Transfer[4 + 0] == cdr.File)) {
1109 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1111 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1112 SPU_playADPCMchannel(&cdr.Xa);
1113 cdr.FirstSector = 0;
1115 else cdr.FirstSector = -1;
1119 cdr.SetSectorPlay[2]++;
1120 if (cdr.SetSectorPlay[2] == 75) {
1121 cdr.SetSectorPlay[2] = 0;
1122 cdr.SetSectorPlay[1]++;
1123 if (cdr.SetSectorPlay[1] == 60) {
1124 cdr.SetSectorPlay[1] = 0;
1125 cdr.SetSectorPlay[0]++;
1131 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1134 Croc 2: $40 - only FORM1 (*)
1135 Judge Dredd: $C8 - only FORM1 (*)
1136 Sim Theme Park - no adpcm at all (zero)
1139 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1140 cdr.Stat = DataReady;
1144 // update for CdlGetlocP
1145 ReadTrack(cdr.SetSectorPlay);
1154 bit 5 - 1 result ready
1156 bit 7 - 1 command being processed
1159 unsigned char cdrRead0(void) {
1160 if (cdr.ResultReady)
1168 // cdr.Ctrl &= ~0x40;
1170 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1173 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1175 return psxHu8(0x1800) = cdr.Ctrl;
1178 void cdrWrite0(unsigned char rt) {
1179 CDR_LOG_IO("cdr w0: %02x\n", rt);
1181 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1184 unsigned char cdrRead1(void) {
1185 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1186 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1190 if (cdr.ResultP == cdr.ResultC)
1191 cdr.ResultReady = 0;
1193 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1195 return psxHu8(0x1801);
1198 void cdrWrite1(unsigned char rt) {
1202 CDR_LOG_IO("cdr w1: %02x\n", rt);
1204 switch (cdr.Ctrl & 3) {
1208 cdr.AttenuatorRightToRightT = rt;
1217 #ifdef CDR_LOG_CMD_IRQ
1218 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1220 SysPrintf(" Param[%d] = {", cdr.ParamC);
1221 for (i = 0; i < cdr.ParamC; i++)
1222 SysPrintf(" %x,", cdr.Param[i]);
1229 cdr.ResultReady = 0;
1231 // cdr.Stat = NoIntr;
1232 AddIrqQueue(cdr.Cmd, 0x800);
1236 for (i = 0; i < 3; i++)
1237 set_loc[i] = btoi(cdr.Param[i]);
1239 i = msf2sec(cdr.SetSectorPlay);
1240 i = abs(i - msf2sec(set_loc));
1242 cdr.Seeked = SEEK_PENDING;
1244 memcpy(cdr.SetSector, set_loc, 3);
1245 cdr.SetSector[3] = 0;
1246 cdr.SetlocPending = 1;
1258 cdr.Seeked = SEEK_DONE;
1264 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1266 cdr.Mode = cdr.Param[0];
1268 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1269 // - fixes choppy movie sound
1270 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1276 unsigned char cdrRead2(void) {
1279 if (cdr.Readed == 0) {
1285 CDR_LOG_IO("cdr r2: %02x\n", ret);
1289 void cdrWrite2(unsigned char rt) {
1290 CDR_LOG_IO("cdr w2: %02x\n", rt);
1292 switch (cdr.Ctrl & 3) {
1294 if (cdr.ParamC < 8) // FIXME: size and wrapping
1295 cdr.Param[cdr.ParamC++] = rt;
1302 cdr.AttenuatorLeftToLeftT = rt;
1305 cdr.AttenuatorRightToLeftT = rt;
1310 unsigned char cdrRead3(void) {
1312 psxHu8(0x1803) = cdr.Stat | 0xE0;
1314 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1316 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1317 return psxHu8(0x1803);
1320 void cdrWrite3(unsigned char rt) {
1321 CDR_LOG_IO("cdr w3: %02x\n", rt);
1323 switch (cdr.Ctrl & 3) {
1333 cdr.AttenuatorLeftToRightT = rt;
1337 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1338 CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
1339 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1340 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1345 if ((rt & 0x80) && cdr.Readed == 0) {
1347 pTransfer = cdr.Transfer;
1349 switch (cdr.Mode & 0x30) {
1350 case MODE_SIZE_2328:
1355 case MODE_SIZE_2340:
1365 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1370 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1375 if (cdr.Readed == 0) {
1376 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1380 cdsize = (bcr & 0xffff) * 4;
1382 // Ape Escape: bcr = 0001 / 0000
1386 switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
1387 case MODE_SIZE_2340: cdsize = 2340; break;
1388 case MODE_SIZE_2328: cdsize = 2328; break;
1390 case MODE_SIZE_2048: cdsize = 2048; break;
1395 ptr = (u8 *)PSXM(madr);
1397 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1402 GS CDX: Enhancement CD crash
1405 - Spams DMA3 and gets buffer overrun
1407 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1412 memcpy(ptr, pTransfer, size);
1415 psxCpu->Clear(madr, cdsize / 4);
1416 pTransfer += cdsize;
1418 if( chcr == 0x11400100 ) {
1419 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1420 CDRDMA_INT( (cdsize/4) / 4 );
1422 else if( chcr == 0x11000000 ) {
1423 // CDRDMA_INT( (cdsize/4) * 1 );
1425 psxRegs.cycle += (cdsize/4) * 24/2;
1431 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1435 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1439 void cdrDmaInterrupt()
1441 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1443 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1448 static void getCdInfo(void)
1452 CDR_getTN(cdr.ResultTN);
1453 CDR_getTD(0, cdr.SetSectorEnd);
1454 tmp = cdr.SetSectorEnd[0];
1455 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1456 cdr.SetSectorEnd[2] = tmp;
1460 memset(&cdr, 0, sizeof(cdr));
1466 cdr.DriveState = DRIVESTATE_STANDBY;
1467 cdr.StatP = STATUS_ROTATING;
1468 pTransfer = cdr.Transfer;
1470 // BIOS player - default values
1471 cdr.AttenuatorLeftToLeft = 0x80;
1472 cdr.AttenuatorLeftToRight = 0x00;
1473 cdr.AttenuatorRightToLeft = 0x00;
1474 cdr.AttenuatorRightToRight = 0x80;
1479 int cdrFreeze(void *f, int Mode) {
1483 if (Mode == 0 && !Config.Cdda)
1486 cdr.freeze_ver = 0x63647202;
1487 gzfreeze(&cdr, sizeof(cdr));
1490 cdr.ParamP = cdr.ParamC;
1491 tmp = pTransfer - cdr.Transfer;
1494 gzfreeze(&tmp, sizeof(tmp));
1499 pTransfer = cdr.Transfer + tmp;
1501 // read right sub data
1502 memcpy(tmpp, cdr.Prev, 3);
1507 if (cdr.freeze_ver < 0x63647202)
1508 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1510 Find_CurTrack(cdr.SetSectorPlay);
1512 CDR_play(cdr.SetSectorPlay);
1515 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1516 // old versions did not latch Reg2, have to fixup..
1517 if (cdr.Reg2 == 0) {
1518 SysPrintf("cdrom: fixing up old savestate\n");
1521 // also did not save Attenuator..
1522 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1523 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1525 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1533 void LidInterrupt() {
1536 cdrLidSeekInterrupt();