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 */
51 #define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
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", "CdlReset", "CdlMute",
87 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
88 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
89 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
90 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
91 "CdlInit", 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) || cdr.FastForward || cdr.FastBackward)) {
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;
497 if (cdr.SetlocPending) {
498 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
499 cdr.SetlocPending = 0;
500 cdr.m_locationChanged = TRUE;
502 Find_CurTrack(cdr.SetSectorPlay);
503 ReadTrack(cdr.SetSectorPlay);
504 cdr.TrackChanged = FALSE;
507 if (!cdr.Play) return;
509 CDR_LOG( "CDDA - %d:%d:%d\n",
510 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
512 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
514 cdr.TrackChanged = TRUE;
517 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
518 cdrPlayInterrupt_Autopause();
520 if (!cdr.Play) return;
522 cdr.SetSectorPlay[2]++;
523 if (cdr.SetSectorPlay[2] == 75) {
524 cdr.SetSectorPlay[2] = 0;
525 cdr.SetSectorPlay[1]++;
526 if (cdr.SetSectorPlay[1] == 60) {
527 cdr.SetSectorPlay[1] = 0;
528 cdr.SetSectorPlay[0]++;
532 if (cdr.m_locationChanged)
534 CDRMISC_INT(cdReadTime * 30);
535 cdr.m_locationChanged = FALSE;
539 CDRMISC_INT(cdReadTime);
542 // update for CdlGetlocP/autopause
543 generate_subq(cdr.SetSectorPlay);
546 void cdrInterrupt() {
548 int no_busy_error = 0;
549 int start_rotating = 0;
552 unsigned int seekTime = 0;
556 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
565 cdr.Result[0] = cdr.StatP;
566 cdr.Stat = Acknowledge;
568 if (cdr.IrqRepeated) {
570 if (cdr.eCycle > psxRegs.cycle) {
580 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
581 cdr.StatP &= ~STATUS_SHELLOPEN;
591 /* It would set it to SEEK_DONE*/
592 cdr.Seeked = SEEK_PENDING;
594 cdr.FastBackward = 0;
597 if (cdr.SetlocPending) {
598 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
599 cdr.SetlocPending = 0;
600 cdr.m_locationChanged = TRUE;
604 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
606 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
607 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
608 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
612 int track = btoi( cdr.Param[0] );
614 if (track <= cdr.ResultTN[1])
615 cdr.CurTrack = track;
617 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
619 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
620 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
621 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
622 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
627 Rayman: detect track changes
630 Twisted Metal 2: skip PREGAP + starting accurate SubQ
631 - plays tracks without retry play
633 Wild 9: skip PREGAP + starting accurate SubQ
634 - plays tracks without retry play
636 Find_CurTrack(cdr.SetSectorPlay);
637 ReadTrack(cdr.SetSectorPlay);
638 cdr.TrackChanged = FALSE;
641 CDR_play(cdr.SetSectorPlay);
643 // Vib Ribbon: gameplay checks flag
644 cdr.StatP &= ~STATUS_SEEK;
645 cdr.Result[0] = cdr.StatP;
647 cdr.StatP |= STATUS_PLAY;
649 // BIOS player - set flag again
652 CDRMISC_INT( cdReadTime );
657 // TODO: error 80 if stopped
660 // GameShark CD Player: Calls 2x + Play 2x
662 cdr.FastBackward = 0;
668 // GameShark CD Player: Calls 2x + Play 2x
674 if (cdr.DriveState != DRIVESTATE_STOPPED) {
675 error = ERROR_INVALIDARG;
678 AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
682 case CdlStandby + 0x100:
689 // grab time for current track
690 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
692 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
693 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
694 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
701 if (cdr.DriveState == DRIVESTATE_STANDBY)
702 delay = cdReadTime * 30 / 2;
704 cdr.DriveState = DRIVESTATE_STOPPED;
705 AddIrqQueue(CdlStop + 0x100, delay);
708 case CdlStop + 0x100:
709 cdr.StatP &= ~STATUS_ROTATING;
710 cdr.Result[0] = cdr.StatP;
717 Gundam Battle Assault 2: much slower (*)
718 - Fixes boot, gameplay
720 Hokuto no Ken 2: slower
721 - Fixes intro + subtitles
723 InuYasha - Feudal Fairy Tale: slower
726 AddIrqQueue(CdlPause + 0x100, cdReadTime * 3);
730 case CdlPause + 0x100:
731 cdr.StatP &= ~STATUS_READ;
732 cdr.Result[0] = cdr.StatP;
739 cdr.Mode = 0x20; /* Needed for This is Football 2, Pooh's Party and possibly others. */
740 AddIrqQueue(CdlReset + 0x100, 4100000);
745 case CdlReset + 0x100:
759 cdr.File = cdr.Param[0];
760 cdr.Channel = cdr.Param[1];
769 cdr.Result[1] = cdr.Mode;
770 cdr.Result[2] = cdr.File;
771 cdr.Result[3] = cdr.Channel;
779 memcpy(cdr.Result, cdr.Transfer, 8);
784 memcpy(&cdr.Result, &cdr.subq, 8);
786 if (!cdr.Play && !cdr.Reading)
787 cdr.Result[1] = 0; // HACK?
790 case CdlReadT: // SetSession?
792 AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
796 case CdlReadT + 0x100:
803 if (CDR_getTN(cdr.ResultTN) == -1) {
804 cdr.Stat = DiskError;
805 cdr.Result[0] |= STATUS_ERROR;
807 cdr.Stat = Acknowledge;
808 cdr.Result[1] = itob(cdr.ResultTN[0]);
809 cdr.Result[2] = itob(cdr.ResultTN[1]);
814 cdr.Track = btoi(cdr.Param[0]);
816 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
817 cdr.Stat = DiskError;
818 cdr.Result[0] |= STATUS_ERROR;
820 cdr.Stat = Acknowledge;
821 cdr.Result[0] = cdr.StatP;
822 cdr.Result[1] = itob(cdr.ResultTD[2]);
823 cdr.Result[2] = itob(cdr.ResultTD[1]);
824 cdr.Result[3] = itob(cdr.ResultTD[0]);
832 cdr.StatP |= STATUS_SEEK;
835 Crusaders of Might and Magic = 0.5x-4x
836 - fix cutscene speech start
842 - fix cutscene speech
847 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
848 cdr.Seeked = SEEK_PENDING;
853 switch (cdr.Param[0]) {
854 case 0x20: // System Controller ROM Version
856 memcpy(cdr.Result, Test20, 4);
860 memcpy(cdr.Result, Test22, 4);
862 case 0x23: case 0x24:
864 memcpy(cdr.Result, Test23, 4);
871 AddIrqQueue(CdlID + 0x100, 20480);
876 cdr.Result[0] = cdr.StatP;
881 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
882 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
883 cdr.Result[1] = 0xc0;
887 cdr.Result[1] |= 0x10;
888 if (CdromId[0] == '\0')
889 cdr.Result[1] |= 0x80;
891 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
893 /* This adds the string "PCSX" in Playstation bios boot screen */
894 memcpy((char *)&cdr.Result[4], "PCSX", 4);
900 // yes, it really sets STATUS_SHELLOPEN
901 cdr.StatP |= STATUS_SHELLOPEN;
902 cdr.DriveState = DRIVESTATE_RESCAN_CD;
913 AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
918 case CdlReadToc + 0x100:
926 if (cdr.SetlocPending) {
927 seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
930 * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball
931 * and was unreliable for that game.
932 * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly.
934 * Obviously, this isn't perfect but right now, it should be a bit better.
935 * Games to test this against if you change that setting :
936 * - Driver (titlescreen music delay and retry mission)
937 * - Worms Pinball (Will either not boot or crash in the memory card screen)
938 * - Viewpoint (short pauses if the delay in the ingame music is too long)
940 * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping.
941 * However, 1000000 is not enough for Worms Pinball to reliably boot.
943 if(seekTime > 3386880 * 2) seekTime = 3386880 * 2;
944 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
945 cdr.SetlocPending = 0;
946 cdr.m_locationChanged = TRUE;
948 Find_CurTrack(cdr.SetSectorPlay);
950 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
951 // Read* acts as play for cdda tracks in cdda mode
957 // Fighting Force 2 - update subq time immediately
959 ReadTrack(cdr.SetSectorPlay);
962 // Crusaders of Might and Magic - update getlocl now
963 // - fixes cutscene speech
965 u8 *buf = CDR_getBuffer();
967 memcpy(cdr.Transfer, buf, 8);
971 Duke Nukem: Land of the Babes - seek then delay read for one frame
973 C-12 - Final Resistance - doesn't like seek
977 By nicolasnoble from PCSX Redux :
978 "It LOOKS like this logic is wrong, therefore disabling it with `&& false` for now.
979 For "PoPoLoCrois Monogatari II", the game logic will soft lock and will never issue GetLocP to detect
980 the end of its XA streams, as it seems to assume ReadS will not return a status byte with the SEEK
981 flag set. I think the reasonning is that since it's invalid to call GetLocP while seeking, the game
982 tries to protect itself against errors by preventing from issuing a GetLocP while it knows the
983 last status was "seek". But this makes the logic just softlock as it'll never get a notification
984 about the fact the drive is done seeking and the read actually started.
985 In other words, this state machine here is probably wrong in assuming the response to ReadS/ReadN is
986 done right away. It's rather when it's done seeking, and the read has actually started. This probably
987 requires a bit more work to make sure seek delays are processed properly.
988 Checked with a few games, this seems to work fine."
990 Gameblabla additional notes :
991 This still needs the "+ seekTime" that PCSX Redux doesn't have for the Driver "retry" mission error.
993 cdr.StatP |= STATUS_READ;
994 cdr.StatP &= ~STATUS_SEEK;
995 CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime);
997 cdr.Result[0] = cdr.StatP;
1003 CDR_LOG_I("Invalid command: %02x\n", Irq);
1004 error = ERROR_INVALIDCMD;
1009 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1010 cdr.Result[1] = error;
1011 cdr.Stat = DiskError;
1015 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
1016 cdr.DriveState = DRIVESTATE_STANDBY;
1017 cdr.StatP |= STATUS_ROTATING;
1020 if (!no_busy_error) {
1021 switch (cdr.DriveState) {
1022 case DRIVESTATE_LID_OPEN:
1023 case DRIVESTATE_RESCAN_CD:
1024 case DRIVESTATE_PREPARE_CD:
1026 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1027 cdr.Result[1] = ERROR_NOTREADY;
1028 cdr.Stat = DiskError;
1037 #ifdef CDR_LOG_CMD_IRQ
1040 SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
1041 !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
1042 for (i = 0; i < cdr.ResultC; i++)
1043 SysPrintf("%02x ", cdr.Result[i]);
1050 #define ssat32_to_16(v) \
1051 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1053 #define ssat32_to_16(v) do { \
1054 if (v < -32768) v = -32768; \
1055 else if (v > 32767) v = 32767; \
1059 void cdrAttenuate(s16 *buf, int samples, int stereo)
1062 int ll = cdr.AttenuatorLeftToLeft;
1063 int lr = cdr.AttenuatorLeftToRight;
1064 int rl = cdr.AttenuatorRightToLeft;
1065 int rr = cdr.AttenuatorRightToRight;
1067 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1070 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1074 for (i = 0; i < samples; i++) {
1077 l = (l * ll + r * rl) >> 7;
1078 r = (r * rr + l * lr) >> 7;
1086 for (i = 0; i < samples; i++) {
1088 l = l * (ll + rl) >> 7;
1089 //r = r * (rr + lr) >> 7;
1097 void cdrReadInterrupt() {
1103 if (cdr.Irq || cdr.Stat) {
1104 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1111 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1112 cdr.StatP &= ~STATUS_SEEK;
1113 cdr.Result[0] = cdr.StatP;
1114 cdr.Seeked = SEEK_DONE;
1116 ReadTrack(cdr.SetSectorPlay);
1118 buf = CDR_getBuffer();
1122 if (cdr.RErr == 0) {
1123 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1124 memset(cdr.Transfer, 0, DATA_SIZE);
1125 cdr.Stat = DiskError;
1126 cdr.Result[0] |= STATUS_ERROR;
1127 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1131 memcpy(cdr.Transfer, buf, DATA_SIZE);
1132 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1135 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1137 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1138 // Firemen 2: Multi-XA files - briefings, cutscenes
1139 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1140 cdr.File = cdr.Transfer[4 + 0];
1141 cdr.Channel = cdr.Transfer[4 + 1];
1145 * Skips playing on channel 255.
1146 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1147 * TODO : Check if this is the proper behaviour.
1149 if((cdr.Transfer[4 + 2] & 0x4) &&
1150 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1151 (cdr.Transfer[4 + 0] == cdr.File) && cdr.Channel != 255) {
1152 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1154 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1155 SPU_playADPCMchannel(&cdr.Xa);
1156 cdr.FirstSector = 0;
1158 else cdr.FirstSector = -1;
1162 cdr.SetSectorPlay[2]++;
1163 if (cdr.SetSectorPlay[2] == 75) {
1164 cdr.SetSectorPlay[2] = 0;
1165 cdr.SetSectorPlay[1]++;
1166 if (cdr.SetSectorPlay[1] == 60) {
1167 cdr.SetSectorPlay[1] = 0;
1168 cdr.SetSectorPlay[0]++;
1174 uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1175 if (cdr.m_locationChanged) {
1176 CDREAD_INT(delay * 30);
1177 cdr.m_locationChanged = FALSE;
1183 Croc 2: $40 - only FORM1 (*)
1184 Judge Dredd: $C8 - only FORM1 (*)
1185 Sim Theme Park - no adpcm at all (zero)
1188 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1189 cdr.Stat = DataReady;
1193 // update for CdlGetlocP
1194 ReadTrack(cdr.SetSectorPlay);
1203 bit 5 - 1 result ready
1205 bit 7 - 1 command being processed
1208 unsigned char cdrRead0(void) {
1209 if (cdr.ResultReady)
1217 // cdr.Ctrl &= ~0x40;
1219 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1222 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1224 return psxHu8(0x1800) = cdr.Ctrl;
1227 void cdrWrite0(unsigned char rt) {
1228 CDR_LOG_IO("cdr w0: %02x\n", rt);
1230 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1233 unsigned char cdrRead1(void) {
1234 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1235 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1239 if (cdr.ResultP == cdr.ResultC)
1240 cdr.ResultReady = 0;
1242 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1244 return psxHu8(0x1801);
1247 void cdrWrite1(unsigned char rt) {
1251 CDR_LOG_IO("cdr w1: %02x\n", rt);
1253 switch (cdr.Ctrl & 3) {
1257 cdr.AttenuatorRightToRightT = rt;
1266 #ifdef CDR_LOG_CMD_IRQ
1267 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1269 SysPrintf(" Param[%d] = {", cdr.ParamC);
1270 for (i = 0; i < cdr.ParamC; i++)
1271 SysPrintf(" %x,", cdr.Param[i]);
1278 cdr.ResultReady = 0;
1280 // cdr.Stat = NoIntr;
1281 AddIrqQueue(cdr.Cmd, 0x800);
1285 CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
1287 // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
1288 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))
1290 CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
1294 for (i = 0; i < 3; i++)
1296 set_loc[i] = btoi(cdr.Param[i]);
1299 i = msf2sec(cdr.SetSectorPlay);
1300 i = abs(i - msf2sec(set_loc));
1302 cdr.Seeked = SEEK_PENDING;
1304 memcpy(cdr.SetSector, set_loc, 3);
1305 cdr.SetSector[3] = 0;
1306 cdr.SetlocPending = 1;
1319 cdr.Seeked = SEEK_DONE;
1325 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1327 cdr.Mode = cdr.Param[0];
1329 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1330 // - fixes choppy movie sound
1331 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1337 unsigned char cdrRead2(void) {
1340 if (cdr.Readed == 0) {
1346 CDR_LOG_IO("cdr r2: %02x\n", ret);
1350 void cdrWrite2(unsigned char rt) {
1351 CDR_LOG_IO("cdr w2: %02x\n", rt);
1353 switch (cdr.Ctrl & 3) {
1355 if (cdr.ParamC < 8) // FIXME: size and wrapping
1356 cdr.Param[cdr.ParamC++] = rt;
1363 cdr.AttenuatorLeftToLeftT = rt;
1366 cdr.AttenuatorRightToLeftT = rt;
1371 unsigned char cdrRead3(void) {
1373 psxHu8(0x1803) = cdr.Stat | 0xE0;
1375 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1377 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1378 return psxHu8(0x1803);
1381 void cdrWrite3(unsigned char rt) {
1382 CDR_LOG_IO("cdr w3: %02x\n", rt);
1384 switch (cdr.Ctrl & 3) {
1394 cdr.AttenuatorLeftToRightT = rt;
1398 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1399 CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
1400 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1401 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1406 if ((rt & 0x80) && cdr.Readed == 0) {
1408 pTransfer = cdr.Transfer;
1410 switch (cdr.Mode & 0x30) {
1411 case MODE_SIZE_2328:
1416 case MODE_SIZE_2340:
1426 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1431 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1436 if (cdr.Readed == 0) {
1437 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1441 cdsize = (bcr & 0xffff) * 4;
1443 // Ape Escape: bcr = 0001 / 0000
1447 switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
1448 case MODE_SIZE_2340: cdsize = 2340; break;
1449 case MODE_SIZE_2328: cdsize = 2328; break;
1451 case MODE_SIZE_2048: cdsize = 2048; break;
1456 ptr = (u8 *)PSXM(madr);
1458 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1463 GS CDX: Enhancement CD crash
1466 - Spams DMA3 and gets buffer overrun
1468 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1473 memcpy(ptr, pTransfer, size);
1476 psxCpu->Clear(madr, cdsize / 4);
1477 pTransfer += cdsize;
1479 if( chcr == 0x11400100 ) {
1480 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1481 CDRDMA_INT( (cdsize/4) / 4 );
1483 else if( chcr == 0x11000000 ) {
1484 // CDRDMA_INT( (cdsize/4) * 1 );
1486 psxRegs.cycle += (cdsize/4) * 24/2;
1492 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1496 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1500 void cdrDmaInterrupt()
1502 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1504 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1509 static void getCdInfo(void)
1513 CDR_getTN(cdr.ResultTN);
1514 CDR_getTD(0, cdr.SetSectorEnd);
1515 tmp = cdr.SetSectorEnd[0];
1516 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1517 cdr.SetSectorEnd[2] = tmp;
1521 memset(&cdr, 0, sizeof(cdr));
1527 cdr.DriveState = DRIVESTATE_STANDBY;
1528 cdr.StatP = STATUS_ROTATING;
1529 pTransfer = cdr.Transfer;
1530 cdr.SetlocPending = 0;
1531 cdr.m_locationChanged = FALSE;
1533 // BIOS player - default values
1534 cdr.AttenuatorLeftToLeft = 0x80;
1535 cdr.AttenuatorLeftToRight = 0x00;
1536 cdr.AttenuatorRightToLeft = 0x00;
1537 cdr.AttenuatorRightToRight = 0x80;
1542 int cdrFreeze(void *f, int Mode) {
1546 if (Mode == 0 && !Config.Cdda)
1549 cdr.freeze_ver = 0x63647202;
1550 gzfreeze(&cdr, sizeof(cdr));
1553 cdr.ParamP = cdr.ParamC;
1554 tmp = pTransfer - cdr.Transfer;
1557 gzfreeze(&tmp, sizeof(tmp));
1562 pTransfer = cdr.Transfer + tmp;
1564 // read right sub data
1565 tmpp[0] = btoi(cdr.Prev[0]);
1566 tmpp[1] = btoi(cdr.Prev[1]);
1567 tmpp[2] = btoi(cdr.Prev[2]);
1572 if (cdr.freeze_ver < 0x63647202)
1573 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1575 Find_CurTrack(cdr.SetSectorPlay);
1577 CDR_play(cdr.SetSectorPlay);
1580 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1581 // old versions did not latch Reg2, have to fixup..
1582 if (cdr.Reg2 == 0) {
1583 SysPrintf("cdrom: fixing up old savestate\n");
1586 // also did not save Attenuator..
1587 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1588 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1590 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1598 void LidInterrupt() {
1601 cdrLidSeekInterrupt();