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 */
52 #define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
65 #define CdlSetfilter 13
67 #define CdlGetparam 15
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", "CdlGetparam",
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.NoErr = 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.Result[0] = cdr.StatP;
455 cdr.Result[1] = cdr.subq.Track;
456 cdr.Result[2] = cdr.subq.Index;
458 abs_lev_chselect = cdr.subq.Absolute[1] & 0x01;
460 /* 8 is a hack. For accuracy, it should be 588. */
461 for (i = 0; i < 8; i++)
463 abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect]));
465 abs_lev_max = MIN_VALUE(abs_lev_max, 32767);
466 abs_lev_max |= abs_lev_chselect << 15;
468 if (cdr.subq.Absolute[2] & 0x10) {
469 cdr.Result[3] = cdr.subq.Relative[0];
470 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
471 cdr.Result[5] = cdr.subq.Relative[2];
474 cdr.Result[3] = cdr.subq.Absolute[0];
475 cdr.Result[4] = cdr.subq.Absolute[1];
476 cdr.Result[5] = cdr.subq.Absolute[2];
479 cdr.Result[6] = abs_lev_max >> 0;
480 cdr.Result[7] = abs_lev_max >> 8;
482 // Rayman: Logo freeze (resultready + dataready)
484 cdr.Stat = DataReady;
492 void cdrPlayInterrupt()
494 if (cdr.Seeked == SEEK_PENDING) {
496 CDR_LOG_I("cdrom: seek stat hack\n");
501 cdr.StatP |= STATUS_ROTATING;
502 cdr.StatP &= ~STATUS_SEEK;
503 cdr.Result[0] = cdr.StatP;
504 cdr.Seeked = SEEK_DONE;
510 if (cdr.SetlocPending) {
511 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
512 cdr.SetlocPending = 0;
513 cdr.m_locationChanged = TRUE;
515 Find_CurTrack(cdr.SetSectorPlay);
516 ReadTrack(cdr.SetSectorPlay);
517 cdr.TrackChanged = FALSE;
520 if (!cdr.Play) return;
522 CDR_LOG( "CDDA - %d:%d:%d\n",
523 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
525 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
527 cdr.TrackChanged = TRUE;
530 CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf);
533 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
534 cdrPlayInterrupt_Autopause();
536 if (CDR_readCDDA && !cdr.Muted && !Config.Cdda) {
537 cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1);
538 if (SPU_playCDDAchannel)
539 SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW);
542 cdr.SetSectorPlay[2]++;
543 if (cdr.SetSectorPlay[2] == 75) {
544 cdr.SetSectorPlay[2] = 0;
545 cdr.SetSectorPlay[1]++;
546 if (cdr.SetSectorPlay[1] == 60) {
547 cdr.SetSectorPlay[1] = 0;
548 cdr.SetSectorPlay[0]++;
552 if (cdr.m_locationChanged)
554 CDRMISC_INT(cdReadTime * 30);
555 cdr.m_locationChanged = FALSE;
559 CDRMISC_INT(cdReadTime);
562 // update for CdlGetlocP/autopause
563 generate_subq(cdr.SetSectorPlay);
566 void cdrInterrupt() {
568 int no_busy_error = 0;
569 int start_rotating = 0;
572 unsigned int seekTime = 0;
578 CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
587 cdr.Result[0] = cdr.StatP;
588 cdr.Stat = Acknowledge;
590 if (cdr.IrqRepeated) {
592 if (cdr.eCycle > psxRegs.cycle) {
602 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
603 cdr.StatP &= ~STATUS_SHELLOPEN;
608 CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
610 // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
611 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))
613 CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
614 error = ERROR_INVALIDARG;
619 for (i = 0; i < 3; i++)
621 set_loc[i] = btoi(cdr.Param[i]);
624 i = msf2sec(cdr.SetSectorPlay);
625 i = abs(i - msf2sec(set_loc));
627 cdr.Seeked = SEEK_PENDING;
629 memcpy(cdr.SetSector, set_loc, 3);
630 cdr.SetSector[3] = 0;
631 cdr.SetlocPending = 1;
638 if (cdr.Seeked == SEEK_PENDING) {
639 // XXX: wrong, should seek instead..
640 cdr.Seeked = SEEK_DONE;
643 cdr.FastBackward = 0;
646 if (cdr.SetlocPending) {
647 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
648 cdr.SetlocPending = 0;
649 cdr.m_locationChanged = TRUE;
653 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
655 if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
656 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
657 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
661 int track = btoi( cdr.Param[0] );
663 if (track <= cdr.ResultTN[1])
664 cdr.CurTrack = track;
666 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
668 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
669 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
670 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
671 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
676 Rayman: detect track changes
679 Twisted Metal 2: skip PREGAP + starting accurate SubQ
680 - plays tracks without retry play
682 Wild 9: skip PREGAP + starting accurate SubQ
683 - plays tracks without retry play
685 Find_CurTrack(cdr.SetSectorPlay);
686 ReadTrack(cdr.SetSectorPlay);
687 cdr.TrackChanged = FALSE;
692 // Vib Ribbon: gameplay checks flag
693 cdr.StatP &= ~STATUS_SEEK;
694 cdr.Result[0] = cdr.StatP;
696 cdr.StatP |= STATUS_PLAY;
698 // BIOS player - set flag again
701 CDRMISC_INT( cdReadTime );
706 // TODO: error 80 if stopped
708 // GameShark CD Player: Calls 2x + Play 2x
710 cdr.FastBackward = 0;
716 // GameShark CD Player: Calls 2x + Play 2x
722 if (cdr.DriveState != DRIVESTATE_STOPPED) {
723 error = ERROR_INVALIDARG;
726 AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
730 case CdlStandby + 0x100:
736 // grab time for current track
737 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
739 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
740 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
741 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
748 if (cdr.DriveState == DRIVESTATE_STANDBY)
749 delay = cdReadTime * 30 / 2;
751 cdr.DriveState = DRIVESTATE_STOPPED;
752 AddIrqQueue(CdlStop + 0x100, delay);
755 case CdlStop + 0x100:
756 cdr.StatP &= ~STATUS_ROTATING;
757 cdr.Result[0] = cdr.StatP;
763 Gundam Battle Assault 2: much slower (*)
764 - Fixes boot, gameplay
765 Hokuto no Ken 2: slower
766 - Fixes intro + subtitles
767 InuYasha - Feudal Fairy Tale: slower
770 /* Gameblabla - Tightening the timings (as taken from Duckstation).
771 * The timings from Duckstation are based upon hardware tests.
772 * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode,
773 * seems to be timing sensitive as it can depend on the CPU's clock speed.
775 * We will need to get around this for Bedlam/Rise 2 later...
777 if (cdr.DriveState == DRIVESTATE_STANDBY)
783 delay = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * (1000000));
784 CDRMISC_INT((cdr.Mode & MODE_SPEED) ? cdReadTime / 2 : cdReadTime);
786 AddIrqQueue(CdlPause + 0x100, delay);
790 case CdlPause + 0x100:
791 cdr.StatP &= ~STATUS_READ;
792 cdr.Result[0] = cdr.StatP;
798 cdr.Mode = 0x20; /* Needed for This is Football 2, Pooh's Party and possibly others. */
799 AddIrqQueue(CdlReset + 0x100, 4100000);
804 case CdlReset + 0x100:
817 cdr.File = cdr.Param[0];
818 cdr.Channel = cdr.Param[1];
827 cdr.Result[1] = cdr.Mode;
829 cdr.Result[3] = cdr.File;
830 cdr.Result[4] = cdr.Channel;
836 memcpy(cdr.Result, cdr.Transfer, 8);
841 memcpy(&cdr.Result, &cdr.subq, 8);
844 case CdlReadT: // SetSession?
846 AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
850 case CdlReadT + 0x100:
856 if (CDR_getTN(cdr.ResultTN) == -1) {
857 cdr.Stat = DiskError;
858 cdr.Result[0] |= STATUS_ERROR;
860 cdr.Stat = Acknowledge;
861 cdr.Result[1] = itob(cdr.ResultTN[0]);
862 cdr.Result[2] = itob(cdr.ResultTN[1]);
867 cdr.Track = btoi(cdr.Param[0]);
869 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
870 cdr.Stat = DiskError;
871 cdr.Result[0] |= STATUS_ERROR;
873 cdr.Stat = Acknowledge;
874 cdr.Result[0] = cdr.StatP;
875 cdr.Result[1] = itob(cdr.ResultTD[2]);
876 cdr.Result[2] = itob(cdr.ResultTD[1]);
877 /* According to Nocash's documentation, the function doesn't care about ff.
878 * This can be seen also in Mednafen's implementation. */
879 //cdr.Result[3] = itob(cdr.ResultTD[0]);
887 cdr.StatP |= STATUS_SEEK;
890 Crusaders of Might and Magic = 0.5x-4x
891 - fix cutscene speech start
897 - fix cutscene speech
902 CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
903 cdr.Seeked = SEEK_PENDING;
908 switch (cdr.Param[0]) {
909 case 0x20: // System Controller ROM Version
911 memcpy(cdr.Result, Test20, 4);
915 memcpy(cdr.Result, Test22, 4);
917 case 0x23: case 0x24:
919 memcpy(cdr.Result, Test23, 4);
926 AddIrqQueue(CdlID + 0x100, 20480);
931 cdr.Result[0] = cdr.StatP;
936 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
937 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
938 cdr.Result[1] = 0xc0;
942 cdr.Result[1] |= 0x10;
943 if (CdromId[0] == '\0')
944 cdr.Result[1] |= 0x80;
946 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
948 /* This adds the string "PCSX" in Playstation bios boot screen */
949 memcpy((char *)&cdr.Result[4], "PCSX", 4);
954 // yes, it really sets STATUS_SHELLOPEN
955 cdr.StatP |= STATUS_SHELLOPEN;
956 cdr.DriveState = DRIVESTATE_RESCAN_CD;
967 AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
972 case CdlReadToc + 0x100:
979 if (cdr.SetlocPending) {
980 seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
983 * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball
984 * and was unreliable for that game.
985 * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly.
987 * Obviously, this isn't perfect but right now, it should be a bit better.
988 * Games to test this against if you change that setting :
989 * - Driver (titlescreen music delay and retry mission)
990 * - Worms Pinball (Will either not boot or crash in the memory card screen)
991 * - Viewpoint (short pauses if the delay in the ingame music is too long)
993 * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping.
994 * However, 1000000 is not enough for Worms Pinball to reliably boot.
996 if(seekTime > 3386880 * 2) seekTime = 3386880 * 2;
997 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
998 cdr.SetlocPending = 0;
999 cdr.m_locationChanged = TRUE;
1001 Find_CurTrack(cdr.SetSectorPlay);
1003 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
1004 // Read* acts as play for cdda tracks in cdda mode
1008 cdr.FirstSector = 1;
1010 // Fighting Force 2 - update subq time immediately
1012 ReadTrack(cdr.SetSectorPlay);
1015 // Crusaders of Might and Magic - update getlocl now
1016 // - fixes cutscene speech
1018 u8 *buf = CDR_getBuffer();
1020 memcpy(cdr.Transfer, buf, 8);
1024 Duke Nukem: Land of the Babes - seek then delay read for one frame
1026 C-12 - Final Resistance - doesn't like seek
1030 By nicolasnoble from PCSX Redux :
1031 "It LOOKS like this logic is wrong, therefore disabling it with `&& false` for now.
1032 For "PoPoLoCrois Monogatari II", the game logic will soft lock and will never issue GetLocP to detect
1033 the end of its XA streams, as it seems to assume ReadS will not return a status byte with the SEEK
1034 flag set. I think the reasonning is that since it's invalid to call GetLocP while seeking, the game
1035 tries to protect itself against errors by preventing from issuing a GetLocP while it knows the
1036 last status was "seek". But this makes the logic just softlock as it'll never get a notification
1037 about the fact the drive is done seeking and the read actually started.
1038 In other words, this state machine here is probably wrong in assuming the response to ReadS/ReadN is
1039 done right away. It's rather when it's done seeking, and the read has actually started. This probably
1040 requires a bit more work to make sure seek delays are processed properly.
1041 Checked with a few games, this seems to work fine."
1043 Gameblabla additional notes :
1044 This still needs the "+ seekTime" that PCSX Redux doesn't have for the Driver "retry" mission error.
1046 cdr.StatP |= STATUS_READ;
1047 cdr.StatP &= ~STATUS_SEEK;
1048 CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime);
1050 cdr.Result[0] = cdr.StatP;
1056 CDR_LOG_I("Invalid command: %02x\n", Irq);
1057 error = ERROR_INVALIDCMD;
1062 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1063 cdr.Result[1] = error;
1064 cdr.Stat = DiskError;
1068 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
1069 cdr.DriveState = DRIVESTATE_STANDBY;
1070 cdr.StatP |= STATUS_ROTATING;
1073 if (!no_busy_error) {
1074 switch (cdr.DriveState) {
1075 case DRIVESTATE_LID_OPEN:
1076 case DRIVESTATE_RESCAN_CD:
1077 case DRIVESTATE_PREPARE_CD:
1079 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1080 cdr.Result[1] = ERROR_NOTREADY;
1081 cdr.Stat = DiskError;
1090 #ifdef CDR_LOG_CMD_IRQ
1093 SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
1094 !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
1095 for (i = 0; i < cdr.ResultC; i++)
1096 SysPrintf("%02x ", cdr.Result[i]);
1103 #define ssat32_to_16(v) \
1104 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1106 #define ssat32_to_16(v) do { \
1107 if (v < -32768) v = -32768; \
1108 else if (v > 32767) v = 32767; \
1112 void cdrAttenuate(s16 *buf, int samples, int stereo)
1115 int ll = cdr.AttenuatorLeftToLeft;
1116 int lr = cdr.AttenuatorLeftToRight;
1117 int rl = cdr.AttenuatorRightToLeft;
1118 int rr = cdr.AttenuatorRightToRight;
1120 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1123 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1127 for (i = 0; i < samples; i++) {
1130 l = (l * ll + r * rl) >> 7;
1131 r = (r * rr + l * lr) >> 7;
1139 for (i = 0; i < samples; i++) {
1141 l = l * (ll + rl) >> 7;
1142 //r = r * (rr + lr) >> 7;
1150 void cdrReadInterrupt() {
1156 if (cdr.Irq || cdr.Stat) {
1157 CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
1164 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1165 cdr.StatP &= ~STATUS_SEEK;
1166 cdr.Result[0] = cdr.StatP;
1167 cdr.Seeked = SEEK_DONE;
1169 ReadTrack(cdr.SetSectorPlay);
1171 buf = CDR_getBuffer();
1175 if (cdr.NoErr == 0) {
1176 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1177 memset(cdr.Transfer, 0, DATA_SIZE);
1178 cdr.Stat = DiskError;
1179 cdr.Result[0] |= STATUS_ERROR;
1180 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1184 memcpy(cdr.Transfer, buf, DATA_SIZE);
1185 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1188 CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1190 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1191 // Firemen 2: Multi-XA files - briefings, cutscenes
1192 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1193 cdr.File = cdr.Transfer[4 + 0];
1194 cdr.Channel = cdr.Transfer[4 + 1];
1198 * Skips playing on channel 255.
1199 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1200 * TODO : Check if this is the proper behaviour.
1202 if((cdr.Transfer[4 + 2] & 0x4) &&
1203 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1204 (cdr.Transfer[4 + 0] == cdr.File) && cdr.Channel != 255) {
1205 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1207 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1210 * This is a hack for Megaman X4, Castlevania etc...
1211 * that regressed from the new m_locationChanged and CDROM timings changes.
1212 * It is mostly noticeable in Castevania however and the stuttering can be very jarring.
1214 * According to PCSX redux authors, we shouldn't cause a location change if
1215 * the sector difference is too small.
1216 * I attempted to go with that approach but came empty handed.
1217 * So for now, let's just set cdr.m_locationChanged to false when playing back any ADPCM samples.
1218 * This does not regress Crash Team Racing's intro at least.
1220 cdr.m_locationChanged = FALSE;
1221 SPU_playADPCMchannel(&cdr.Xa);
1222 cdr.FirstSector = 0;
1224 else cdr.FirstSector = -1;
1228 cdr.SetSectorPlay[2]++;
1229 if (cdr.SetSectorPlay[2] == 75) {
1230 cdr.SetSectorPlay[2] = 0;
1231 cdr.SetSectorPlay[1]++;
1232 if (cdr.SetSectorPlay[1] == 60) {
1233 cdr.SetSectorPlay[1] = 0;
1234 cdr.SetSectorPlay[0]++;
1240 uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1241 if (cdr.m_locationChanged) {
1242 CDREAD_INT(delay * 30);
1243 cdr.m_locationChanged = FALSE;
1249 Croc 2: $40 - only FORM1 (*)
1250 Judge Dredd: $C8 - only FORM1 (*)
1251 Sim Theme Park - no adpcm at all (zero)
1254 if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
1255 cdr.Stat = DataReady;
1259 // update for CdlGetlocP
1260 ReadTrack(cdr.SetSectorPlay);
1269 bit 5 - 1 result ready
1271 bit 7 - 1 command being processed
1274 unsigned char cdrRead0(void) {
1275 if (cdr.ResultReady)
1283 // cdr.Ctrl &= ~0x40;
1285 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1288 CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
1290 return psxHu8(0x1800) = cdr.Ctrl;
1293 void cdrWrite0(unsigned char rt) {
1294 CDR_LOG_IO("cdr w0: %02x\n", rt);
1296 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1299 unsigned char cdrRead1(void) {
1300 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1301 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1305 if (cdr.ResultP == cdr.ResultC)
1306 cdr.ResultReady = 0;
1308 CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
1310 return psxHu8(0x1801);
1313 void cdrWrite1(unsigned char rt) {
1314 CDR_LOG_IO("cdr w1: %02x\n", rt);
1316 switch (cdr.Ctrl & 3) {
1320 cdr.AttenuatorRightToRightT = rt;
1329 #ifdef CDR_LOG_CMD_IRQ
1330 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1332 SysPrintf(" Param[%d] = {", cdr.ParamC);
1333 for (i = 0; i < cdr.ParamC; i++)
1334 SysPrintf(" %x,", cdr.Param[i]);
1341 cdr.ResultReady = 0;
1343 // cdr.Stat = NoIntr;
1344 AddIrqQueue(cdr.Cmd, 0x800);
1356 cdr.Seeked = SEEK_DONE;
1362 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1364 cdr.Mode = cdr.Param[0];
1366 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1367 // - fixes choppy movie sound
1368 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1374 unsigned char cdrRead2(void) {
1377 if (cdr.Readed == 0) {
1383 CDR_LOG_IO("cdr r2: %02x\n", ret);
1387 void cdrWrite2(unsigned char rt) {
1388 CDR_LOG_IO("cdr w2: %02x\n", rt);
1390 switch (cdr.Ctrl & 3) {
1392 if (cdr.ParamC < 8) // FIXME: size and wrapping
1393 cdr.Param[cdr.ParamC++] = rt;
1400 cdr.AttenuatorLeftToLeftT = rt;
1403 cdr.AttenuatorRightToLeftT = rt;
1408 unsigned char cdrRead3(void) {
1410 psxHu8(0x1803) = cdr.Stat | 0xE0;
1412 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1414 CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
1415 return psxHu8(0x1803);
1418 void cdrWrite3(unsigned char rt) {
1419 CDR_LOG_IO("cdr w3: %02x\n", rt);
1421 switch (cdr.Ctrl & 3) {
1431 cdr.AttenuatorLeftToRightT = rt;
1435 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1436 CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
1437 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1438 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1443 if ((rt & 0x80) && cdr.Readed == 0) {
1445 pTransfer = cdr.Transfer;
1447 switch (cdr.Mode & 0x30) {
1448 case MODE_SIZE_2328:
1453 case MODE_SIZE_2340:
1463 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1468 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1473 if (cdr.Readed == 0) {
1474 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1478 cdsize = (bcr & 0xffff) * 4;
1480 // Ape Escape: bcr = 0001 / 0000
1484 switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
1485 case MODE_SIZE_2340: cdsize = 2340; break;
1486 case MODE_SIZE_2328: cdsize = 2328; break;
1488 case MODE_SIZE_2048: cdsize = 2048; break;
1493 ptr = (u8 *)PSXM(madr);
1494 if (ptr == INVALID_PTR) {
1495 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1500 GS CDX: Enhancement CD crash
1503 - Spams DMA3 and gets buffer overrun
1505 size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
1510 memcpy(ptr, pTransfer, size);
1513 psxCpu->Clear(madr, cdsize / 4);
1514 pTransfer += cdsize;
1516 if( chcr == 0x11400100 ) {
1517 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1518 CDRDMA_INT( (cdsize/4) / 4 );
1520 else if( chcr == 0x11000000 ) {
1521 // CDRDMA_INT( (cdsize/4) * 1 );
1523 psxRegs.cycle += (cdsize/4) * 24/2;
1529 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1533 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1537 void cdrDmaInterrupt()
1539 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1541 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1546 static void getCdInfo(void)
1550 CDR_getTN(cdr.ResultTN);
1551 CDR_getTD(0, cdr.SetSectorEnd);
1552 tmp = cdr.SetSectorEnd[0];
1553 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1554 cdr.SetSectorEnd[2] = tmp;
1558 memset(&cdr, 0, sizeof(cdr));
1564 cdr.DriveState = DRIVESTATE_STANDBY;
1565 cdr.StatP = STATUS_ROTATING;
1566 pTransfer = cdr.Transfer;
1567 cdr.SetlocPending = 0;
1568 cdr.m_locationChanged = FALSE;
1570 // BIOS player - default values
1571 cdr.AttenuatorLeftToLeft = 0x80;
1572 cdr.AttenuatorLeftToRight = 0x00;
1573 cdr.AttenuatorRightToLeft = 0x00;
1574 cdr.AttenuatorRightToRight = 0x80;
1579 int cdrFreeze(void *f, int Mode) {
1583 if (Mode == 0 && !Config.Cdda)
1586 cdr.freeze_ver = 0x63647202;
1587 gzfreeze(&cdr, sizeof(cdr));
1590 cdr.ParamP = cdr.ParamC;
1591 tmp = pTransfer - cdr.Transfer;
1594 gzfreeze(&tmp, sizeof(tmp));
1599 pTransfer = cdr.Transfer + tmp;
1601 // read right sub data
1602 tmpp[0] = btoi(cdr.Prev[0]);
1603 tmpp[1] = btoi(cdr.Prev[1]);
1604 tmpp[2] = btoi(cdr.Prev[2]);
1609 if (cdr.freeze_ver < 0x63647202)
1610 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1612 Find_CurTrack(cdr.SetSectorPlay);
1617 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1618 // old versions did not latch Reg2, have to fixup..
1619 if (cdr.Reg2 == 0) {
1620 SysPrintf("cdrom: fixing up old savestate\n");
1623 // also did not save Attenuator..
1624 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1625 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1627 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1635 void LidInterrupt() {
1638 cdrLidSeekInterrupt();