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;
49 static s16 read_buf[CD_FRAMESIZE_RAW/2];
51 /* CD-ROM magic numbers */
65 #define CdlSetfilter 13
75 #define CdlSetclock 23
76 #define CdlGetclock 24
84 char *CmdName[0x100]= {
85 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
86 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
87 "CdlStop", "CdlPause", "CdlReset", "CdlMute",
88 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
89 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
90 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
91 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
92 "CdlInit", NULL, "CDlReadToc", NULL
95 unsigned char Test04[] = { 0 };
96 unsigned char Test05[] = { 0 };
97 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
98 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
99 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
105 #define Acknowledge 3
110 #define MODE_SPEED (1<<7) // 0x80
111 #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
112 #define MODE_SIZE_2340 (1<<5) // 0x20
113 #define MODE_SIZE_2328 (1<<4) // 0x10
114 #define MODE_SIZE_2048 (0<<4) // 0x00
115 #define MODE_SF (1<<3) // 0x08 channel on/off
116 #define MODE_REPORT (1<<2) // 0x04
117 #define MODE_AUTOPAUSE (1<<1) // 0x02
118 #define MODE_CDDA (1<<0) // 0x01
121 #define STATUS_PLAY (1<<7) // 0x80
122 #define STATUS_SEEK (1<<6) // 0x40
123 #define STATUS_READ (1<<5) // 0x20
124 #define STATUS_SHELLOPEN (1<<4) // 0x10
125 #define STATUS_UNKNOWN3 (1<<3) // 0x08
126 #define STATUS_UNKNOWN2 (1<<2) // 0x04
127 #define STATUS_ROTATING (1<<1) // 0x02
128 #define STATUS_ERROR (1<<0) // 0x01
131 #define ERROR_NOTREADY (1<<7) // 0x80
132 #define ERROR_INVALIDCMD (1<<6) // 0x40
133 #define ERROR_INVALIDARG (1<<5) // 0x20
135 // 1x = 75 sectors per second
136 // PSXCLK = 1 sec in the ps
137 // so (PSXCLK / 75) = cdr read time (linuzappz)
138 #define cdReadTime (PSXCLK / 75)
141 DRIVESTATE_STANDBY = 0,
143 DRIVESTATE_RESCAN_CD,
144 DRIVESTATE_PREPARE_CD,
154 static struct CdrStat stat;
156 static unsigned int msf2sec(const u8 *msf) {
157 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
160 // for that weird psemu API..
161 static unsigned int fsm2sec(const u8 *msf) {
162 return ((msf[2] * 60 + msf[1]) * 75) + msf[0];
165 static void sec2msf(unsigned int s, u8 *msf) {
166 msf[0] = s / 75 / 60;
167 s = s - msf[0] * 75 * 60;
174 #define CDR_INT(eCycle) { \
175 psxRegs.interrupt |= (1 << PSXINT_CDR); \
176 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
177 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
178 new_dyna_set_event(PSXINT_CDR, eCycle); \
182 #define CDREAD_INT(eCycle) { \
183 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
184 psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
185 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
186 new_dyna_set_event(PSXINT_CDREAD, eCycle); \
189 // cdrLidSeekInterrupt
190 #define CDRLID_INT(eCycle) { \
191 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
192 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
193 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
194 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
198 #define CDRMISC_INT(eCycle) { \
199 psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
200 psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
201 psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
202 new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
205 #define StopReading() { \
208 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
210 cdr.StatP &= ~(STATUS_READ|STATUS_SEEK);\
213 #define StopCdda() { \
215 if (!Config.Cdda) CDR_stop(); \
216 cdr.StatP &= ~STATUS_PLAY; \
218 cdr.FastForward = 0; \
219 cdr.FastBackward = 0; \
220 /*SPU_registerCallback( SPUirq );*/ \
224 #define SetResultSize(size) { \
226 cdr.ResultC = size; \
227 cdr.ResultReady = 1; \
230 static void setIrq(void)
232 if (cdr.Stat & cdr.Reg2)
233 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
236 // timing used in this function was taken from tests on real hardware
237 // (yes it's slow, but you probably don't want to modify it)
238 void cdrLidSeekInterrupt()
240 switch (cdr.DriveState) {
242 case DRIVESTATE_STANDBY:
243 cdr.StatP &= ~STATUS_SEEK;
245 if (CDR_getStatus(&stat) == -1)
248 if (stat.Status & STATUS_SHELLOPEN)
251 cdr.DriveState = DRIVESTATE_LID_OPEN;
256 case DRIVESTATE_LID_OPEN:
257 if (CDR_getStatus(&stat) == -1)
258 stat.Status &= ~STATUS_SHELLOPEN;
261 if (!(cdr.StatP & STATUS_SHELLOPEN)) {
263 cdr.StatP |= STATUS_SHELLOPEN;
265 // could generate error irq here, but real hardware
266 // only sometimes does that
267 // (not done when lots of commands are sent?)
269 CDRLID_INT(cdReadTime * 30);
272 else if (cdr.StatP & STATUS_ROTATING) {
273 cdr.StatP &= ~STATUS_ROTATING;
275 else if (!(stat.Status & STATUS_SHELLOPEN)) {
279 // cdr.StatP STATUS_SHELLOPEN is "sticky"
280 // and is only cleared by CdlNop
282 cdr.DriveState = DRIVESTATE_RESCAN_CD;
283 CDRLID_INT(cdReadTime * 105);
288 CDRLID_INT(cdReadTime * 3);
291 case DRIVESTATE_RESCAN_CD:
292 cdr.StatP |= STATUS_ROTATING;
293 cdr.DriveState = DRIVESTATE_PREPARE_CD;
295 // this is very long on real hardware, over 6 seconds
296 // make it a bit faster here...
297 CDRLID_INT(cdReadTime * 150);
300 case DRIVESTATE_PREPARE_CD:
301 cdr.StatP |= STATUS_SEEK;
303 cdr.DriveState = DRIVESTATE_STANDBY;
304 CDRLID_INT(cdReadTime * 26);
309 static void Find_CurTrack(const u8 *time)
313 current = msf2sec(time);
315 for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) {
316 CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD);
317 sect = fsm2sec(cdr.ResultTD);
318 if (sect - current >= 150)
323 static void generate_subq(const u8 *time)
325 unsigned char start[3], next[3];
326 unsigned int this_s, start_s, next_s, pregap;
329 CDR_getTD(cdr.CurTrack, start);
330 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
332 CDR_getTD(cdr.CurTrack + 1, next);
335 // last track - cd size
337 next[0] = cdr.SetSectorEnd[2];
338 next[1] = cdr.SetSectorEnd[1];
339 next[2] = cdr.SetSectorEnd[0];
342 this_s = msf2sec(time);
343 start_s = fsm2sec(start);
344 next_s = fsm2sec(next);
346 cdr.TrackChanged = FALSE;
348 if (next_s - this_s < pregap) {
349 cdr.TrackChanged = TRUE;
356 relative_s = this_s - start_s;
357 if (relative_s < 0) {
359 relative_s = -relative_s;
361 sec2msf(relative_s, cdr.subq.Relative);
363 cdr.subq.Track = itob(cdr.CurTrack);
364 cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]);
365 cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]);
366 cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]);
367 cdr.subq.Absolute[0] = itob(time[0]);
368 cdr.subq.Absolute[1] = itob(time[1]);
369 cdr.subq.Absolute[2] = itob(time[2]);
372 static void ReadTrack(const u8 *time) {
373 unsigned char tmp[3];
377 tmp[0] = itob(time[0]);
378 tmp[1] = itob(time[1]);
379 tmp[2] = itob(time[2]);
381 if (memcmp(cdr.Prev, tmp, 3) == 0)
384 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
386 cdr.RErr = CDR_readTrack(tmp);
387 memcpy(cdr.Prev, tmp, 3);
392 subq = (struct SubQ *)CDR_getBufferSub();
393 if (subq != NULL && cdr.CurTrack == 1) {
394 crc = calcCrc((u8 *)subq + 12, 10);
395 if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
396 cdr.subq.Track = subq->TrackNumber;
397 cdr.subq.Index = subq->IndexNumber;
398 memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
399 memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
402 CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
403 tmp[0], tmp[1], tmp[2]);
410 CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
411 cdr.subq.Track, cdr.subq.Index,
412 cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
413 cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
416 static void AddIrqQueue(unsigned short irq, unsigned long ecycle) {
418 if (irq == cdr.Irq || irq + 0x100 == cdr.Irq) {
424 CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
433 static void cdrPlayInterrupt_Autopause()
436 boolean abs_lev_chselect;
439 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
440 CDR_LOG( "CDDA STOP\n" );
442 // Magic the Gathering
443 // - looping territory cdda
446 //cdr.ResultReady = 1;
447 //cdr.Stat = DataReady;
453 else if (((cdr.Mode & MODE_REPORT) || cdr.FastForward || cdr.FastBackward)) {
454 CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf);
455 cdr.Result[0] = cdr.StatP;
456 cdr.Result[1] = cdr.subq.Track;
457 cdr.Result[2] = cdr.subq.Index;
459 abs_lev_chselect = cdr.subq.Absolute[1] & 0x01;
461 /* 8 is a hack. For accuracy, it should be 588. */
462 for (i = 0; i < 8; i++)
464 abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect]));
466 abs_lev_max = MIN_VALUE(abs_lev_max, 32767);
467 abs_lev_max |= abs_lev_chselect << 15;
469 if (cdr.subq.Absolute[2] & 0x10) {
470 cdr.Result[3] = cdr.subq.Relative[0];
471 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
472 cdr.Result[5] = cdr.subq.Relative[2];
475 cdr.Result[3] = cdr.subq.Absolute[0];
476 cdr.Result[4] = cdr.subq.Absolute[1];
477 cdr.Result[5] = cdr.subq.Absolute[2];
480 cdr.Result[6] = abs_lev_max >> 0;
481 cdr.Result[7] = abs_lev_max >> 8;
483 // Rayman: Logo freeze (resultready + dataready)
485 cdr.Stat = DataReady;
493 void cdrPlayInterrupt()
495 if (cdr.Seeked == SEEK_PENDING) {
497 CDR_LOG_I("cdrom: seek stat hack\n");
502 cdr.StatP |= STATUS_ROTATING;
503 cdr.StatP &= ~STATUS_SEEK;
504 cdr.Result[0] = cdr.StatP;
505 cdr.Seeked = SEEK_DONE;
512 if (cdr.SetlocPending) {
513 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
514 cdr.SetlocPending = 0;
515 cdr.m_locationChanged = TRUE;
517 Find_CurTrack(cdr.SetSectorPlay);
518 ReadTrack(cdr.SetSectorPlay);
519 cdr.TrackChanged = FALSE;
522 if (!cdr.Play) return;
524 CDR_LOG( "CDDA - %d:%d:%d\n",
525 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
527 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
529 cdr.TrackChanged = TRUE;
532 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
533 cdrPlayInterrupt_Autopause();
535 if (!cdr.Play) return;
537 if (CDR_readCDDA && !cdr.Muted && cdr.Mode & MODE_REPORT) {
538 cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1);
539 if (SPU_playCDDAchannel)
540 SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW);
543 cdr.SetSectorPlay[2]++;
544 if (cdr.SetSectorPlay[2] == 75) {
545 cdr.SetSectorPlay[2] = 0;
546 cdr.SetSectorPlay[1]++;
547 if (cdr.SetSectorPlay[1] == 60) {
548 cdr.SetSectorPlay[1] = 0;
549 cdr.SetSectorPlay[0]++;
553 if (cdr.m_locationChanged)
555 CDRMISC_INT(cdReadTime * 30);
556 cdr.m_locationChanged = FALSE;
560 CDRMISC_INT(cdReadTime);
563 // update for CdlGetlocP/autopause
564 generate_subq(cdr.SetSectorPlay);
567 void cdrInterrupt() {
569 int no_busy_error = 0;
570 int start_rotating = 0;
573 unsigned int seekTime = 0;
577 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
586 cdr.Result[0] = cdr.StatP;
587 cdr.Stat = Acknowledge;
589 if (cdr.IrqRepeated) {
591 if (cdr.eCycle > psxRegs.cycle) {
601 // TOOD: sometimes/always return error?
605 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
606 cdr.StatP &= ~STATUS_SHELLOPEN;
616 /* It would set it to SEEK_DONE*/
617 cdr.Seeked = SEEK_PENDING;
619 cdr.FastBackward = 0;
622 if (cdr.SetlocPending) {
623 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
624 cdr.SetlocPending = 0;
625 cdr.m_locationChanged = TRUE;
629 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
631 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
632 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
633 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
637 int track = btoi( cdr.Param[0] );
639 if (track <= cdr.ResultTN[1])
640 cdr.CurTrack = track;
642 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
644 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
645 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
646 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
647 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
652 Rayman: detect track changes
655 Twisted Metal 2: skip PREGAP + starting accurate SubQ
656 - plays tracks without retry play
658 Wild 9: skip PREGAP + starting accurate SubQ
659 - plays tracks without retry play
661 Find_CurTrack(cdr.SetSectorPlay);
662 ReadTrack(cdr.SetSectorPlay);
663 cdr.TrackChanged = FALSE;
668 // Vib Ribbon: gameplay checks flag
669 cdr.StatP &= ~STATUS_SEEK;
670 cdr.Result[0] = cdr.StatP;
672 cdr.StatP |= STATUS_PLAY;
674 // BIOS player - set flag again
677 CDRMISC_INT( cdReadTime );
682 // TODO: error 80 if stopped
685 // GameShark CD Player: Calls 2x + Play 2x
687 cdr.FastBackward = 0;
693 // GameShark CD Player: Calls 2x + Play 2x
699 if (cdr.DriveState != DRIVESTATE_STOPPED) {
700 error = ERROR_INVALIDARG;
703 AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
707 case CdlStandby + 0x100:
714 // grab time for current track
715 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
717 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
718 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
719 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
726 if (cdr.DriveState == DRIVESTATE_STANDBY)
727 delay = cdReadTime * 30 / 2;
729 cdr.DriveState = DRIVESTATE_STOPPED;
730 AddIrqQueue(CdlStop + 0x100, delay);
733 case CdlStop + 0x100:
734 cdr.StatP &= ~STATUS_ROTATING;
735 cdr.Result[0] = cdr.StatP;
742 Gundam Battle Assault 2: much slower (*)
743 - Fixes boot, gameplay
745 Hokuto no Ken 2: slower
746 - Fixes intro + subtitles
748 InuYasha - Feudal Fairy Tale: slower
751 AddIrqQueue(CdlPause + 0x100, cdReadTime * 3);
755 case CdlPause + 0x100:
756 cdr.StatP &= ~STATUS_READ;
757 cdr.Result[0] = cdr.StatP;
764 cdr.Mode = 0x20; /* Needed for This is Football 2, Pooh's Party and possibly others. */
765 AddIrqQueue(CdlReset + 0x100, 4100000);
770 case CdlReset + 0x100:
784 cdr.File = cdr.Param[0];
785 cdr.Channel = cdr.Param[1];
794 cdr.Result[1] = cdr.Mode;
795 cdr.Result[2] = cdr.File;
796 cdr.Result[3] = cdr.Channel;
804 memcpy(cdr.Result, cdr.Transfer, 8);
809 memcpy(&cdr.Result, &cdr.subq, 8);
811 if (!cdr.Play && !cdr.Reading)
812 cdr.Result[1] = 0; // HACK?
815 case CdlReadT: // SetSession?
817 AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
821 case CdlReadT + 0x100:
828 if (CDR_getTN(cdr.ResultTN) == -1) {
829 cdr.Stat = DiskError;
830 cdr.Result[0] |= STATUS_ERROR;
832 cdr.Stat = Acknowledge;
833 cdr.Result[1] = itob(cdr.ResultTN[0]);
834 cdr.Result[2] = itob(cdr.ResultTN[1]);
839 cdr.Track = btoi(cdr.Param[0]);
841 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
842 cdr.Stat = DiskError;
843 cdr.Result[0] |= STATUS_ERROR;
845 cdr.Stat = Acknowledge;
846 cdr.Result[0] = cdr.StatP;
847 cdr.Result[1] = itob(cdr.ResultTD[2]);
848 cdr.Result[2] = itob(cdr.ResultTD[1]);
849 cdr.Result[3] = itob(cdr.ResultTD[0]);
857 cdr.StatP |= STATUS_SEEK;
860 Crusaders of Might and Magic = 0.5x-4x
861 - fix cutscene speech start
867 - fix cutscene speech
872 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
873 cdr.Seeked = SEEK_PENDING;
878 switch (cdr.Param[0]) {
879 case 0x20: // System Controller ROM Version
881 memcpy(cdr.Result, Test20, 4);
885 memcpy(cdr.Result, Test22, 4);
887 case 0x23: case 0x24:
889 memcpy(cdr.Result, Test23, 4);
896 AddIrqQueue(CdlID + 0x100, 20480);
901 cdr.Result[0] = cdr.StatP;
906 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
907 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
908 cdr.Result[1] = 0xc0;
912 cdr.Result[1] |= 0x10;
913 if (CdromId[0] == '\0')
914 cdr.Result[1] |= 0x80;
916 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
918 /* This adds the string "PCSX" in Playstation bios boot screen */
919 memcpy((char *)&cdr.Result[4], "PCSX", 4);
925 // yes, it really sets STATUS_SHELLOPEN
926 cdr.StatP |= STATUS_SHELLOPEN;
927 cdr.DriveState = DRIVESTATE_RESCAN_CD;
935 CDR_LOG_I("got CdlGetQ\n");
939 AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
944 case CdlReadToc + 0x100:
952 if (cdr.SetlocPending) {
953 seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
956 * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball
957 * and was unreliable for that game.
958 * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly.
960 * Obviously, this isn't perfect but right now, it should be a bit better.
961 * Games to test this against if you change that setting :
962 * - Driver (titlescreen music delay and retry mission)
963 * - Worms Pinball (Will either not boot or crash in the memory card screen)
964 * - Viewpoint (short pauses if the delay in the ingame music is too long)
966 * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping.
967 * However, 1000000 is not enough for Worms Pinball to reliably boot.
969 if(seekTime > 3386880 * 2) seekTime = 3386880 * 2;
970 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
971 cdr.SetlocPending = 0;
972 cdr.m_locationChanged = TRUE;
974 Find_CurTrack(cdr.SetSectorPlay);
976 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
977 // Read* acts as play for cdda tracks in cdda mode
983 // Fighting Force 2 - update subq time immediately
985 ReadTrack(cdr.SetSectorPlay);
988 // Crusaders of Might and Magic - update getlocl now
989 // - fixes cutscene speech
991 u8 *buf = CDR_getBuffer();
993 memcpy(cdr.Transfer, buf, 8);
997 Duke Nukem: Land of the Babes - seek then delay read for one frame
999 C-12 - Final Resistance - doesn't like seek
1003 By nicolasnoble from PCSX Redux :
1004 "It LOOKS like this logic is wrong, therefore disabling it with `&& false` for now.
1005 For "PoPoLoCrois Monogatari II", the game logic will soft lock and will never issue GetLocP to detect
1006 the end of its XA streams, as it seems to assume ReadS will not return a status byte with the SEEK
1007 flag set. I think the reasonning is that since it's invalid to call GetLocP while seeking, the game
1008 tries to protect itself against errors by preventing from issuing a GetLocP while it knows the
1009 last status was "seek". But this makes the logic just softlock as it'll never get a notification
1010 about the fact the drive is done seeking and the read actually started.
1011 In other words, this state machine here is probably wrong in assuming the response to ReadS/ReadN is
1012 done right away. It's rather when it's done seeking, and the read has actually started. This probably
1013 requires a bit more work to make sure seek delays are processed properly.
1014 Checked with a few games, this seems to work fine."
1016 Gameblabla additional notes :
1017 This still needs the "+ seekTime" that PCSX Redux doesn't have for the Driver "retry" mission error.
1019 cdr.StatP |= STATUS_READ;
1020 cdr.StatP &= ~STATUS_SEEK;
1021 CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime);
1023 cdr.Result[0] = cdr.StatP;
1028 CDR_LOG_I("Invalid command: %02x\n", Irq);
1029 error = ERROR_INVALIDCMD;
1034 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1035 cdr.Result[1] = error;
1036 cdr.Stat = DiskError;
1040 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
1041 cdr.DriveState = DRIVESTATE_STANDBY;
1042 cdr.StatP |= STATUS_ROTATING;
1045 if (!no_busy_error) {
1046 switch (cdr.DriveState) {
1047 case DRIVESTATE_LID_OPEN:
1048 case DRIVESTATE_RESCAN_CD:
1049 case DRIVESTATE_PREPARE_CD:
1051 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1052 cdr.Result[1] = ERROR_NOTREADY;
1053 cdr.Stat = DiskError;
1062 #ifdef CDR_LOG_CMD_IRQ
1065 SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
1066 !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
1067 for (i = 0; i < cdr.ResultC; i++)
1068 SysPrintf("%02x ", cdr.Result[i]);
1075 #define ssat32_to_16(v) \
1076 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1078 #define ssat32_to_16(v) do { \
1079 if (v < -32768) v = -32768; \
1080 else if (v > 32767) v = 32767; \
1084 void cdrAttenuate(s16 *buf, int samples, int stereo)
1087 int ll = cdr.AttenuatorLeftToLeft;
1088 int lr = cdr.AttenuatorLeftToRight;
1089 int rl = cdr.AttenuatorRightToLeft;
1090 int rr = cdr.AttenuatorRightToRight;
1092 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1095 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1099 for (i = 0; i < samples; i++) {
1102 l = (l * ll + r * rl) >> 7;
1103 r = (r * rr + l * lr) >> 7;
1111 for (i = 0; i < samples; i++) {
1113 l = l * (ll + rl) >> 7;
1114 //r = r * (rr + lr) >> 7;
1122 void cdrReadInterrupt() {
1128 if (cdr.Irq || cdr.Stat) {
1129 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1136 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1137 cdr.StatP &= ~STATUS_SEEK;
1138 cdr.Result[0] = cdr.StatP;
1139 cdr.Seeked = SEEK_DONE;
1141 ReadTrack(cdr.SetSectorPlay);
1143 buf = CDR_getBuffer();
1147 if (cdr.RErr == 0) {
1148 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1149 memset(cdr.Transfer, 0, DATA_SIZE);
1150 cdr.Stat = DiskError;
1151 cdr.Result[0] |= STATUS_ERROR;
1152 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1156 memcpy(cdr.Transfer, buf, DATA_SIZE);
1157 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1160 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1162 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1163 // Firemen 2: Multi-XA files - briefings, cutscenes
1164 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1165 cdr.File = cdr.Transfer[4 + 0];
1166 cdr.Channel = cdr.Transfer[4 + 1];
1170 * Skips playing on channel 255.
1171 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1172 * TODO : Check if this is the proper behaviour.
1174 if((cdr.Transfer[4 + 2] & 0x4) &&
1175 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1176 (cdr.Transfer[4 + 0] == cdr.File) && cdr.Channel != 255) {
1177 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1179 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1180 SPU_playADPCMchannel(&cdr.Xa);
1181 cdr.FirstSector = 0;
1183 else cdr.FirstSector = -1;
1187 cdr.SetSectorPlay[2]++;
1188 if (cdr.SetSectorPlay[2] == 75) {
1189 cdr.SetSectorPlay[2] = 0;
1190 cdr.SetSectorPlay[1]++;
1191 if (cdr.SetSectorPlay[1] == 60) {
1192 cdr.SetSectorPlay[1] = 0;
1193 cdr.SetSectorPlay[0]++;
1199 uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1200 if (cdr.m_locationChanged) {
1201 CDREAD_INT(delay * 30);
1202 cdr.m_locationChanged = FALSE;
1208 Croc 2: $40 - only FORM1 (*)
1209 Judge Dredd: $C8 - only FORM1 (*)
1210 Sim Theme Park - no adpcm at all (zero)
1213 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1214 cdr.Stat = DataReady;
1218 // update for CdlGetlocP
1219 ReadTrack(cdr.SetSectorPlay);
1228 bit 5 - 1 result ready
1230 bit 7 - 1 command being processed
1233 unsigned char cdrRead0(void) {
1234 if (cdr.ResultReady)
1242 // cdr.Ctrl &= ~0x40;
1244 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1247 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1249 return psxHu8(0x1800) = cdr.Ctrl;
1252 void cdrWrite0(unsigned char rt) {
1253 CDR_LOG_IO("cdr w0: %02x\n", rt);
1255 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1258 unsigned char cdrRead1(void) {
1259 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1260 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1264 if (cdr.ResultP == cdr.ResultC)
1265 cdr.ResultReady = 0;
1267 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1269 return psxHu8(0x1801);
1272 void cdrWrite1(unsigned char rt) {
1276 CDR_LOG_IO("cdr w1: %02x\n", rt);
1278 switch (cdr.Ctrl & 3) {
1282 cdr.AttenuatorRightToRightT = rt;
1291 #ifdef CDR_LOG_CMD_IRQ
1292 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1294 SysPrintf(" Param[%d] = {", cdr.ParamC);
1295 for (i = 0; i < cdr.ParamC; i++)
1296 SysPrintf(" %x,", cdr.Param[i]);
1303 cdr.ResultReady = 0;
1305 // cdr.Stat = NoIntr;
1306 AddIrqQueue(cdr.Cmd, 0x800);
1310 for (i = 0; i < 3; i++)
1311 set_loc[i] = btoi(cdr.Param[i]);
1313 i = msf2sec(cdr.SetSectorPlay);
1314 i = abs(i - msf2sec(set_loc));
1316 cdr.Seeked = SEEK_PENDING;
1318 memcpy(cdr.SetSector, set_loc, 3);
1319 cdr.SetSector[3] = 0;
1320 cdr.SetlocPending = 1;
1332 cdr.Seeked = SEEK_DONE;
1338 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1340 cdr.Mode = cdr.Param[0];
1342 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1343 // - fixes choppy movie sound
1344 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1350 unsigned char cdrRead2(void) {
1353 if (cdr.Readed == 0) {
1359 CDR_LOG_IO("cdr r2: %02x\n", ret);
1363 void cdrWrite2(unsigned char rt) {
1364 CDR_LOG_IO("cdr w2: %02x\n", rt);
1366 switch (cdr.Ctrl & 3) {
1368 if (cdr.ParamC < 8) // FIXME: size and wrapping
1369 cdr.Param[cdr.ParamC++] = rt;
1376 cdr.AttenuatorLeftToLeftT = rt;
1379 cdr.AttenuatorRightToLeftT = rt;
1384 unsigned char cdrRead3(void) {
1386 psxHu8(0x1803) = cdr.Stat | 0xE0;
1388 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1390 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1391 return psxHu8(0x1803);
1394 void cdrWrite3(unsigned char rt) {
1395 CDR_LOG_IO("cdr w3: %02x\n", rt);
1397 switch (cdr.Ctrl & 3) {
1407 cdr.AttenuatorLeftToRightT = rt;
1411 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1412 CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
1413 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1414 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1419 if ((rt & 0x80) && cdr.Readed == 0) {
1421 pTransfer = cdr.Transfer;
1423 switch (cdr.Mode & 0x30) {
1424 case MODE_SIZE_2328:
1429 case MODE_SIZE_2340:
1439 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1444 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1449 if (cdr.Readed == 0) {
1450 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1454 cdsize = (bcr & 0xffff) * 4;
1456 // Ape Escape: bcr = 0001 / 0000
1460 switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
1461 case MODE_SIZE_2340: cdsize = 2340; break;
1462 case MODE_SIZE_2328: cdsize = 2328; break;
1464 case MODE_SIZE_2048: cdsize = 2048; break;
1469 ptr = (u8 *)PSXM(madr);
1471 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1476 GS CDX: Enhancement CD crash
1479 - Spams DMA3 and gets buffer overrun
1481 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1486 memcpy(ptr, pTransfer, size);
1489 psxCpu->Clear(madr, cdsize / 4);
1490 pTransfer += cdsize;
1492 if( chcr == 0x11400100 ) {
1493 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1494 CDRDMA_INT( (cdsize/4) / 4 );
1496 else if( chcr == 0x11000000 ) {
1497 // CDRDMA_INT( (cdsize/4) * 1 );
1499 psxRegs.cycle += (cdsize/4) * 24/2;
1505 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1509 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1513 void cdrDmaInterrupt()
1515 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1517 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1522 static void getCdInfo(void)
1526 CDR_getTN(cdr.ResultTN);
1527 CDR_getTD(0, cdr.SetSectorEnd);
1528 tmp = cdr.SetSectorEnd[0];
1529 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1530 cdr.SetSectorEnd[2] = tmp;
1534 memset(&cdr, 0, sizeof(cdr));
1540 cdr.DriveState = DRIVESTATE_STANDBY;
1541 cdr.StatP = STATUS_ROTATING;
1542 pTransfer = cdr.Transfer;
1543 cdr.SetlocPending = 0;
1544 cdr.m_locationChanged = FALSE;
1546 // BIOS player - default values
1547 cdr.AttenuatorLeftToLeft = 0x80;
1548 cdr.AttenuatorLeftToRight = 0x00;
1549 cdr.AttenuatorRightToLeft = 0x00;
1550 cdr.AttenuatorRightToRight = 0x80;
1555 int cdrFreeze(void *f, int Mode) {
1559 if (Mode == 0 && !Config.Cdda)
1562 cdr.freeze_ver = 0x63647202;
1563 gzfreeze(&cdr, sizeof(cdr));
1566 cdr.ParamP = cdr.ParamC;
1567 tmp = pTransfer - cdr.Transfer;
1570 gzfreeze(&tmp, sizeof(tmp));
1575 pTransfer = cdr.Transfer + tmp;
1577 // read right sub data
1578 tmpp[0] = btoi(cdr.Prev[0]);
1579 tmpp[1] = btoi(cdr.Prev[1]);
1580 tmpp[2] = btoi(cdr.Prev[2]);
1585 if (cdr.freeze_ver < 0x63647202)
1586 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1588 Find_CurTrack(cdr.SetSectorPlay);
1593 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1594 // old versions did not latch Reg2, have to fixup..
1595 if (cdr.Reg2 == 0) {
1596 SysPrintf("cdrom: fixing up old savestate\n");
1599 // also did not save Attenuator..
1600 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1601 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1603 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1611 void LidInterrupt() {
1614 cdrLidSeekInterrupt();