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 log_unhandled
41 #define CDR_LOG_IO SysPrintf
43 #define CDR_LOG_IO(...)
45 //#define CDR_LOG_CMD_IRQ
48 // unused members maintain savesate compatibility
49 unsigned char unused0;
50 unsigned char unused1;
52 unsigned char unused2;
58 unsigned char Transfer[DATA_SIZE];
62 unsigned char Relative[3];
63 unsigned char Absolute[3];
65 unsigned char TrackChanged;
66 unsigned char unused3[3];
67 unsigned int freeze_ver;
69 unsigned char Prev[4];
70 unsigned char Param[8];
71 unsigned char Result[16];
75 unsigned char ResultC;
76 unsigned char ResultP;
77 unsigned char ResultReady;
79 unsigned char unused4;
80 unsigned char SetlocPending;
83 unsigned char ResultTN[6];
84 unsigned char ResultTD[4];
85 unsigned char SetSectorPlay[4];
86 unsigned char SetSectorEnd[4];
87 unsigned char SetSector[4];
91 int Mode, File, Channel;
113 u8 AttenuatorLeftToLeft, AttenuatorLeftToRight;
114 u8 AttenuatorRightToRight, AttenuatorRightToLeft;
115 u8 AttenuatorLeftToLeftT, AttenuatorLeftToRightT;
116 u8 AttenuatorRightToRightT, AttenuatorRightToLeftT;
118 static s16 read_buf[CD_FRAMESIZE_RAW/2];
120 /* CD-ROM magic numbers */
121 #define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
126 #define CdlBackward 5
134 #define CdlSetfilter 13
135 #define CdlSetmode 14
136 #define CdlGetparam 15
137 #define CdlGetlocL 16
138 #define CdlGetlocP 17
144 #define CdlSetclock 23
145 #define CdlGetclock 24
151 #define CdlReadToc 30
153 #ifdef CDR_LOG_CMD_IRQ
154 static const char * const CmdName[0x100] = {
155 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
156 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
157 "CdlStop", "CdlPause", "CdlReset", "CdlMute",
158 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetparam",
159 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
160 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
161 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
162 "CdlInit", NULL, "CDlReadToc", NULL
166 unsigned char Test04[] = { 0 };
167 unsigned char Test05[] = { 0 };
168 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
169 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
170 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
176 #define Acknowledge 3
181 #define MODE_SPEED (1<<7) // 0x80
182 #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off
183 #define MODE_SIZE_2340 (1<<5) // 0x20
184 #define MODE_SIZE_2328 (1<<4) // 0x10
185 #define MODE_SIZE_2048 (0<<4) // 0x00
186 #define MODE_SF (1<<3) // 0x08 channel on/off
187 #define MODE_REPORT (1<<2) // 0x04
188 #define MODE_AUTOPAUSE (1<<1) // 0x02
189 #define MODE_CDDA (1<<0) // 0x01
192 #define STATUS_PLAY (1<<7) // 0x80
193 #define STATUS_SEEK (1<<6) // 0x40
194 #define STATUS_READ (1<<5) // 0x20
195 #define STATUS_SHELLOPEN (1<<4) // 0x10
196 #define STATUS_UNKNOWN3 (1<<3) // 0x08
197 #define STATUS_UNKNOWN2 (1<<2) // 0x04
198 #define STATUS_ROTATING (1<<1) // 0x02
199 #define STATUS_ERROR (1<<0) // 0x01
202 #define ERROR_NOTREADY (1<<7) // 0x80
203 #define ERROR_INVALIDCMD (1<<6) // 0x40
204 #define ERROR_INVALIDARG (1<<5) // 0x20
206 // 1x = 75 sectors per second
207 // PSXCLK = 1 sec in the ps
208 // so (PSXCLK / 75) = cdr read time (linuzappz)
209 #define cdReadTime (PSXCLK / 75)
212 DRIVESTATE_STANDBY = 0, // pause, play, read
214 DRIVESTATE_RESCAN_CD,
215 DRIVESTATE_PREPARE_CD,
219 static struct CdrStat stat;
221 static unsigned int msf2sec(const u8 *msf) {
222 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
225 // for that weird psemu API..
226 static unsigned int fsm2sec(const u8 *msf) {
227 return ((msf[2] * 60 + msf[1]) * 75) + msf[0];
230 static void sec2msf(unsigned int s, u8 *msf) {
231 msf[0] = s / 75 / 60;
232 s = s - msf[0] * 75 * 60;
239 #define CDR_INT(eCycle) { \
240 psxRegs.interrupt |= (1 << PSXINT_CDR); \
241 psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
242 psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
243 new_dyna_set_event(PSXINT_CDR, eCycle); \
246 // cdrPlaySeekReadInterrupt
247 #define CDRPLAYSEEKREAD_INT(eCycle, isFirst) { \
249 psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
251 psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
253 psxRegs.intCycle[PSXINT_CDREAD].sCycle += psxRegs.intCycle[PSXINT_CDREAD].cycle; \
254 psxRegs.intCycle[PSXINT_CDREAD].cycle = e_; \
255 new_dyna_set_event_abs(PSXINT_CDREAD, psxRegs.intCycle[PSXINT_CDREAD].sCycle + e_); \
258 // cdrLidSeekInterrupt
259 #define CDRLID_INT(eCycle) { \
260 psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
261 psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
262 psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
263 new_dyna_set_event(PSXINT_CDRLID, eCycle); \
266 #define StopReading() { \
268 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
271 #define StopCdda() { \
272 if (cdr.Play && !Config.Cdda) CDR_stop(); \
274 cdr.FastForward = 0; \
275 cdr.FastBackward = 0; \
278 #define SetPlaySeekRead(x, f) { \
279 x &= ~(STATUS_PLAY | STATUS_SEEK | STATUS_READ); \
283 #define SetResultSize(size) { \
285 cdr.ResultC = size; \
286 cdr.ResultReady = 1; \
289 static void setIrq(int log_cmd)
291 if (cdr.Stat & cdr.Reg2)
292 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
294 #ifdef CDR_LOG_CMD_IRQ
298 SysPrintf("%u cdrom: CDR IRQ=%d cmd %02x stat %02x: ",
299 psxRegs.cycle, !!(cdr.Stat & cdr.Reg2), log_cmd, cdr.Stat);
300 for (i = 0; i < cdr.ResultC; i++)
301 SysPrintf("%02x ", cdr.Result[i]);
307 // timing used in this function was taken from tests on real hardware
308 // (yes it's slow, but you probably don't want to modify it)
309 void cdrLidSeekInterrupt(void)
311 switch (cdr.DriveState) {
313 case DRIVESTATE_STANDBY:
316 SetPlaySeekRead(cdr.StatP, 0);
318 if (CDR_getStatus(&stat) == -1)
321 if (stat.Status & STATUS_SHELLOPEN)
323 cdr.DriveState = DRIVESTATE_LID_OPEN;
328 case DRIVESTATE_LID_OPEN:
329 if (CDR_getStatus(&stat) == -1)
330 stat.Status &= ~STATUS_SHELLOPEN;
333 if (!(cdr.StatP & STATUS_SHELLOPEN)) {
334 cdr.StatP |= STATUS_SHELLOPEN;
336 // could generate error irq here, but real hardware
337 // only sometimes does that
338 // (not done when lots of commands are sent?)
340 CDRLID_INT(cdReadTime * 30);
343 else if (cdr.StatP & STATUS_ROTATING) {
344 cdr.StatP &= ~STATUS_ROTATING;
346 else if (!(stat.Status & STATUS_SHELLOPEN)) {
350 // cdr.StatP STATUS_SHELLOPEN is "sticky"
351 // and is only cleared by CdlNop
353 cdr.DriveState = DRIVESTATE_RESCAN_CD;
354 CDRLID_INT(cdReadTime * 105);
359 CDRLID_INT(cdReadTime * 3);
362 case DRIVESTATE_RESCAN_CD:
363 cdr.StatP |= STATUS_ROTATING;
364 cdr.DriveState = DRIVESTATE_PREPARE_CD;
366 // this is very long on real hardware, over 6 seconds
367 // make it a bit faster here...
368 CDRLID_INT(cdReadTime * 150);
371 case DRIVESTATE_PREPARE_CD:
372 cdr.StatP |= STATUS_SEEK;
374 cdr.DriveState = DRIVESTATE_STANDBY;
375 CDRLID_INT(cdReadTime * 26);
380 static void Find_CurTrack(const u8 *time)
384 current = msf2sec(time);
386 for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) {
387 CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD);
388 sect = fsm2sec(cdr.ResultTD);
389 if (sect - current >= 150)
394 static void generate_subq(const u8 *time)
396 unsigned char start[3], next[3];
397 unsigned int this_s, start_s, next_s, pregap;
400 CDR_getTD(cdr.CurTrack, start);
401 if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) {
403 CDR_getTD(cdr.CurTrack + 1, next);
406 // last track - cd size
408 next[0] = cdr.SetSectorEnd[2];
409 next[1] = cdr.SetSectorEnd[1];
410 next[2] = cdr.SetSectorEnd[0];
413 this_s = msf2sec(time);
414 start_s = fsm2sec(start);
415 next_s = fsm2sec(next);
417 cdr.TrackChanged = FALSE;
419 if (next_s - this_s < pregap) {
420 cdr.TrackChanged = TRUE;
427 relative_s = this_s - start_s;
428 if (relative_s < 0) {
430 relative_s = -relative_s;
432 sec2msf(relative_s, cdr.subq.Relative);
434 cdr.subq.Track = itob(cdr.CurTrack);
435 cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]);
436 cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]);
437 cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]);
438 cdr.subq.Absolute[0] = itob(time[0]);
439 cdr.subq.Absolute[1] = itob(time[1]);
440 cdr.subq.Absolute[2] = itob(time[2]);
443 static void ReadTrack(const u8 *time) {
444 unsigned char tmp[3];
448 tmp[0] = itob(time[0]);
449 tmp[1] = itob(time[1]);
450 tmp[2] = itob(time[2]);
452 if (memcmp(cdr.Prev, tmp, 3) == 0)
455 CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
457 cdr.NoErr = CDR_readTrack(tmp);
458 memcpy(cdr.Prev, tmp, 3);
463 subq = (struct SubQ *)CDR_getBufferSub();
464 if (subq != NULL && cdr.CurTrack == 1) {
465 crc = calcCrc((u8 *)subq + 12, 10);
466 if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
467 cdr.subq.Track = subq->TrackNumber;
468 cdr.subq.Index = subq->IndexNumber;
469 memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
470 memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
473 CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
474 tmp[0], tmp[1], tmp[2]);
481 CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
482 cdr.subq.Track, cdr.subq.Index,
483 cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
484 cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
487 static void cdrPlayInterrupt_Autopause()
490 boolean abs_lev_chselect;
493 if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
494 CDR_LOG( "CDDA STOP\n" );
496 // Magic the Gathering
497 // - looping territory cdda
500 //cdr.ResultReady = 1;
501 //cdr.Stat = DataReady;
506 SetPlaySeekRead(cdr.StatP, 0);
508 else if (((cdr.Mode & MODE_REPORT) || cdr.FastForward || cdr.FastBackward)) {
509 cdr.Result[0] = cdr.StatP;
510 cdr.Result[1] = cdr.subq.Track;
511 cdr.Result[2] = cdr.subq.Index;
513 abs_lev_chselect = cdr.subq.Absolute[1] & 0x01;
515 /* 8 is a hack. For accuracy, it should be 588. */
516 for (i = 0; i < 8; i++)
518 abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect]));
520 abs_lev_max = MIN_VALUE(abs_lev_max, 32767);
521 abs_lev_max |= abs_lev_chselect << 15;
523 if (cdr.subq.Absolute[2] & 0x10) {
524 cdr.Result[3] = cdr.subq.Relative[0];
525 cdr.Result[4] = cdr.subq.Relative[1] | 0x80;
526 cdr.Result[5] = cdr.subq.Relative[2];
529 cdr.Result[3] = cdr.subq.Absolute[0];
530 cdr.Result[4] = cdr.subq.Absolute[1];
531 cdr.Result[5] = cdr.subq.Absolute[2];
534 cdr.Result[6] = abs_lev_max >> 0;
535 cdr.Result[7] = abs_lev_max >> 8;
537 // Rayman: Logo freeze (resultready + dataready)
539 cdr.Stat = DataReady;
546 static int cdrSeekTime(unsigned char *target)
548 int diff = msf2sec(cdr.SetSectorPlay) - msf2sec(target);
549 int seekTime = abs(diff) * (cdReadTime / 200);
552 * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball
553 * and was unreliable for that game.
554 * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly.
556 * Obviously, this isn't perfect but right now, it should be a bit better.
557 * Games to test this against if you change that setting :
558 * - Driver (titlescreen music delay and retry mission)
559 * - Worms Pinball (Will either not boot or crash in the memory card screen)
560 * - Viewpoint (short pauses if the delay in the ingame music is too long)
562 * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping.
563 * However, 1000000 is not enough for Worms Pinball to reliably boot.
565 if(seekTime > 3386880 * 2) seekTime = 3386880 * 2;
566 CDR_LOG("seek: %.2f %.2f\n", (float)seekTime / PSXCLK, (float)seekTime / cdReadTime);
570 static void cdrUpdateTransferBuf(const u8 *buf);
571 static void cdrReadInterrupt(void);
572 static void cdrPrepCdda(s16 *buf, int samples);
573 static void cdrAttenuate(s16 *buf, int samples, int stereo);
575 void cdrPlaySeekReadInterrupt(void)
582 if (!cdr.Play && (cdr.StatP & STATUS_SEEK)) {
584 CDR_LOG_I("cdrom: seek stat hack\n");
585 CDRPLAYSEEKREAD_INT(0x1000, 1);
589 cdr.StatP |= STATUS_ROTATING;
590 SetPlaySeekRead(cdr.StatP, 0);
591 cdr.Result[0] = cdr.StatP;
595 Find_CurTrack(cdr.SetSectorPlay);
596 ReadTrack(cdr.SetSectorPlay);
597 cdr.TrackChanged = FALSE;
601 if (!cdr.Play) return;
603 CDR_LOG( "CDDA - %d:%d:%d\n",
604 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
606 SetPlaySeekRead(cdr.StatP, STATUS_PLAY);
607 if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
609 SetPlaySeekRead(cdr.StatP, 0);
610 cdr.TrackChanged = TRUE;
613 CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf);
616 if (!cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
617 cdrPlayInterrupt_Autopause();
619 if (!cdr.Muted && !Config.Cdda) {
620 cdrPrepCdda(read_buf, CD_FRAMESIZE_RAW / 4);
621 cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1);
622 SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW, psxRegs.cycle, cdr.FirstSector);
626 cdr.SetSectorPlay[2]++;
627 if (cdr.SetSectorPlay[2] == 75) {
628 cdr.SetSectorPlay[2] = 0;
629 cdr.SetSectorPlay[1]++;
630 if (cdr.SetSectorPlay[1] == 60) {
631 cdr.SetSectorPlay[1] = 0;
632 cdr.SetSectorPlay[0]++;
636 // update for CdlGetlocP/autopause
637 generate_subq(cdr.SetSectorPlay);
639 CDRPLAYSEEKREAD_INT(cdReadTime, 0);
642 void cdrInterrupt(void) {
643 int no_busy_error = 0;
644 int start_rotating = 0;
646 unsigned int seekTime = 0;
647 u32 second_resp_time = 0;
654 CDR_LOG_I("%u cdrom: cmd %02x with irqstat %x\n",
655 psxRegs.cycle, cdr.CmdInProgress, cdr.Stat);
658 if (cdr.Irq1Pending) {
659 // hand out the "newest" sector, according to nocash
660 cdrUpdateTransferBuf(CDR_getBuffer());
661 CDR_LOG_I("cdrom: %x:%02x:%02x loaded on ack\n",
662 cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
664 cdr.Result[0] = cdr.Irq1Pending;
665 cdr.Stat = (cdr.Irq1Pending & STATUS_ERROR) ? DiskError : DataReady;
675 cdr.Result[0] = cdr.StatP;
676 cdr.Stat = Acknowledge;
678 Cmd = cdr.CmdInProgress;
679 cdr.CmdInProgress = 0;
689 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
690 cdr.StatP &= ~STATUS_SHELLOPEN;
695 CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
697 // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
698 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))
700 CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
701 error = ERROR_INVALIDARG;
706 for (i = 0; i < 3; i++)
707 set_loc[i] = btoi(cdr.Param[i]);
708 memcpy(cdr.SetSector, set_loc, 3);
709 cdr.SetSector[3] = 0;
710 cdr.SetlocPending = 1;
719 cdr.FastBackward = 0;
723 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
725 if (ParamC != 0 && cdr.Param[0] != 0) {
726 int track = btoi( cdr.Param[0] );
728 if (track <= cdr.ResultTN[1])
729 cdr.CurTrack = track;
731 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
733 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
734 for (i = 0; i < 3; i++)
735 set_loc[i] = cdr.ResultTD[2 - i];
736 seekTime = cdrSeekTime(set_loc);
737 memcpy(cdr.SetSectorPlay, set_loc, 3);
740 else if (cdr.SetlocPending) {
741 seekTime = cdrSeekTime(cdr.SetSector);
742 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
745 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
746 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
748 cdr.SetlocPending = 0;
751 Rayman: detect track changes
754 Twisted Metal 2: skip PREGAP + starting accurate SubQ
755 - plays tracks without retry play
757 Wild 9: skip PREGAP + starting accurate SubQ
758 - plays tracks without retry play
760 Find_CurTrack(cdr.SetSectorPlay);
761 ReadTrack(cdr.SetSectorPlay);
762 cdr.TrackChanged = FALSE;
766 CDR_play(cdr.SetSectorPlay);
768 SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING);
770 // BIOS player - set flag again
773 CDRPLAYSEEKREAD_INT(cdReadTime + seekTime, 1);
778 // TODO: error 80 if stopped
781 // GameShark CD Player: Calls 2x + Play 2x
783 cdr.FastBackward = 0;
789 // GameShark CD Player: Calls 2x + Play 2x
790 cdr.FastBackward = 1;
795 if (cdr.DriveState != DRIVESTATE_STOPPED) {
796 error = ERROR_INVALIDARG;
799 second_resp_time = cdReadTime * 125 / 2;
803 case CdlStandby + 0x100:
809 // grab time for current track
810 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
812 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
813 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
814 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
819 SetPlaySeekRead(cdr.StatP, 0);
820 cdr.StatP &= ~STATUS_ROTATING;
822 second_resp_time = 0x800;
823 if (cdr.DriveState == DRIVESTATE_STANDBY)
824 second_resp_time = cdReadTime * 30 / 2;
826 cdr.DriveState = DRIVESTATE_STOPPED;
829 case CdlStop + 0x100:
837 Gundam Battle Assault 2: much slower (*)
838 - Fixes boot, gameplay
840 Hokuto no Ken 2: slower
841 - Fixes intro + subtitles
843 InuYasha - Feudal Fairy Tale: slower
846 /* Gameblabla - Tightening the timings (as taken from Duckstation).
847 * The timings from Duckstation are based upon hardware tests.
848 * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode,
849 * seems to be timing sensitive as it can depend on the CPU's clock speed.
851 if (!(cdr.StatP & (STATUS_PLAY | STATUS_READ)))
853 second_resp_time = 7000;
857 second_resp_time = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * 1000000);
859 SetPlaySeekRead(cdr.StatP, 0);
863 case CdlPause + 0x100:
870 SetPlaySeekRead(cdr.StatP, 0);
872 cdr.Mode = 0x20; /* This fixes This is Football 2, Pooh's Party lockups */
873 second_resp_time = 4100000;
878 case CdlReset + 0x100:
891 cdr.File = cdr.Param[0];
892 cdr.Channel = cdr.Param[1];
896 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
897 cdr.Mode = cdr.Param[0];
902 /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */
904 cdr.Result[1] = cdr.Mode;
906 cdr.Result[3] = cdr.File;
907 cdr.Result[4] = cdr.Channel;
913 memcpy(cdr.Result, cdr.Transfer, 8);
918 memcpy(&cdr.Result, &cdr.subq, 8);
921 case CdlReadT: // SetSession?
923 second_resp_time = cdReadTime * 290 / 4;
927 case CdlReadT + 0x100:
933 if (CDR_getTN(cdr.ResultTN) == -1) {
934 cdr.Stat = DiskError;
935 cdr.Result[0] |= STATUS_ERROR;
937 cdr.Stat = Acknowledge;
938 cdr.Result[1] = itob(cdr.ResultTN[0]);
939 cdr.Result[2] = itob(cdr.ResultTN[1]);
944 cdr.Track = btoi(cdr.Param[0]);
946 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
947 cdr.Stat = DiskError;
948 cdr.Result[0] |= STATUS_ERROR;
950 cdr.Stat = Acknowledge;
951 cdr.Result[0] = cdr.StatP;
952 cdr.Result[1] = itob(cdr.ResultTD[2]);
953 cdr.Result[2] = itob(cdr.ResultTD[1]);
954 /* According to Nocash's documentation, the function doesn't care about ff.
955 * This can be seen also in Mednafen's implementation. */
956 //cdr.Result[3] = itob(cdr.ResultTD[0]);
964 SetPlaySeekRead(cdr.StatP, STATUS_SEEK);
966 seekTime = cdrSeekTime(cdr.SetSector);
967 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
969 Crusaders of Might and Magic = 0.5x-4x
970 - fix cutscene speech start
976 - fix cutscene speech
981 CDRPLAYSEEKREAD_INT(cdReadTime + seekTime, 1);
986 switch (cdr.Param[0]) {
987 case 0x20: // System Controller ROM Version
989 memcpy(cdr.Result, Test20, 4);
993 memcpy(cdr.Result, Test22, 4);
995 case 0x23: case 0x24:
997 memcpy(cdr.Result, Test23, 4);
1004 second_resp_time = 20480;
1009 cdr.Result[0] = cdr.StatP;
1014 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
1015 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
1016 cdr.Result[1] = 0xc0;
1020 cdr.Result[1] |= 0x10;
1021 if (CdromId[0] == '\0')
1022 cdr.Result[1] |= 0x80;
1024 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
1026 /* This adds the string "PCSX" in Playstation bios boot screen */
1027 memcpy((char *)&cdr.Result[4], "PCSX", 4);
1028 cdr.Stat = Complete;
1034 SetPlaySeekRead(cdr.StatP, 0);
1035 // yes, it really sets STATUS_SHELLOPEN
1036 cdr.StatP |= STATUS_SHELLOPEN;
1037 cdr.DriveState = DRIVESTATE_RESCAN_CD;
1048 second_resp_time = cdReadTime * 180 / 4;
1053 case CdlReadToc + 0x100:
1054 cdr.Stat = Complete;
1060 Find_CurTrack(cdr.SetlocPending ? cdr.SetSector : cdr.SetSectorPlay);
1062 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
1063 // Read* acts as play for cdda tracks in cdda mode
1067 if (cdr.SetlocPending) {
1068 seekTime = cdrSeekTime(cdr.SetSector);
1069 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
1070 cdr.SetlocPending = 0;
1073 cdr.FirstSector = 1;
1075 // Fighting Force 2 - update subq time immediately
1077 ReadTrack(cdr.SetSectorPlay);
1079 CDRPLAYSEEKREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime, 1);
1081 SetPlaySeekRead(cdr.StatP, STATUS_SEEK);
1086 CDR_LOG_I("Invalid command: %02x\n", Cmd);
1087 error = ERROR_INVALIDCMD;
1092 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1093 cdr.Result[1] = error;
1094 cdr.Stat = DiskError;
1098 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
1099 cdr.DriveState = DRIVESTATE_STANDBY;
1100 cdr.StatP |= STATUS_ROTATING;
1103 if (!no_busy_error) {
1104 switch (cdr.DriveState) {
1105 case DRIVESTATE_LID_OPEN:
1106 case DRIVESTATE_RESCAN_CD:
1107 case DRIVESTATE_PREPARE_CD:
1109 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1110 cdr.Result[1] = ERROR_NOTREADY;
1111 cdr.Stat = DiskError;
1116 if (second_resp_time) {
1117 cdr.CmdInProgress = Cmd | 0x100;
1118 CDR_INT(second_resp_time);
1120 else if (cdr.Cmd && cdr.Cmd != (Cmd & 0xff)) {
1121 cdr.CmdInProgress = cdr.Cmd;
1122 CDR_LOG_I("%u cdrom: cmd %02x came before %02x finished\n",
1123 psxRegs.cycle, cdr.Cmd, Cmd);
1130 #define ssat32_to_16(v) \
1131 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1133 #define ssat32_to_16(v) do { \
1134 if (v < -32768) v = -32768; \
1135 else if (v > 32767) v = 32767; \
1139 static void cdrPrepCdda(s16 *buf, int samples)
1141 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1143 for (i = 0; i < samples; i++) {
1144 buf[i * 2 + 0] = SWAP16(buf[i * 2 + 0]);
1145 buf[i * 2 + 1] = SWAP16(buf[i * 2 + 1]);
1150 static void cdrAttenuate(s16 *buf, int samples, int stereo)
1153 int ll = cdr.AttenuatorLeftToLeft;
1154 int lr = cdr.AttenuatorLeftToRight;
1155 int rl = cdr.AttenuatorRightToLeft;
1156 int rr = cdr.AttenuatorRightToRight;
1158 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1161 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1165 for (i = 0; i < samples; i++) {
1168 l = (l * ll + r * rl) >> 7;
1169 r = (r * rr + l * lr) >> 7;
1177 for (i = 0; i < samples; i++) {
1179 l = l * (ll + rl) >> 7;
1180 //r = r * (rr + lr) >> 7;
1188 static void cdrReadInterruptSetResult(unsigned char result)
1191 CDR_LOG_I("cdrom: %d:%02d:%02d irq miss, cmd=%02x irqstat=%02x\n",
1192 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
1193 cdr.CmdInProgress, cdr.Stat);
1194 cdr.Irq1Pending = result;
1198 cdr.Result[0] = result;
1199 cdr.Stat = (result & STATUS_ERROR) ? DiskError : DataReady;
1203 static void cdrUpdateTransferBuf(const u8 *buf)
1207 memcpy(cdr.Transfer, buf, DATA_SIZE);
1208 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1209 CDR_LOG("cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1210 if (cdr.FifoOffset < 2048 + 12)
1211 CDR_LOG("cdrom: FifoOffset(1) %d/%d\n", cdr.FifoOffset, cdr.FifoSize);
1214 static void cdrReadInterrupt(void)
1216 u8 *buf = NULL, *hdr;
1218 SetPlaySeekRead(cdr.StatP, STATUS_READ | STATUS_ROTATING);
1220 ReadTrack(cdr.SetSectorPlay);
1222 buf = CDR_getBuffer();
1227 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1228 memset(cdr.Transfer, 0, DATA_SIZE);
1229 cdrReadInterruptSetResult(cdr.StatP | STATUS_ERROR);
1233 if (!cdr.Irq1Pending)
1234 cdrUpdateTransferBuf(buf);
1236 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1238 // Firemen 2: Multi-XA files - briefings, cutscenes
1239 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1241 cdr.Channel = hdr[1];
1245 * Skips playing on channel 255.
1246 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1247 * TODO : Check if this is the proper behaviour.
1249 if ((hdr[2] & 0x4) && hdr[0] == cdr.File && hdr[1] == cdr.Channel && cdr.Channel != 255) {
1250 int ret = xa_decode_sector(&cdr.Xa, buf + 4, cdr.FirstSector);
1252 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1253 SPU_playADPCMchannel(&cdr.Xa, psxRegs.cycle, cdr.FirstSector);
1254 cdr.FirstSector = 0;
1256 else cdr.FirstSector = -1;
1261 Croc 2: $40 - only FORM1 (*)
1262 Judge Dredd: $C8 - only FORM1 (*)
1263 Sim Theme Park - no adpcm at all (zero)
1266 if (!(cdr.Mode & MODE_STRSND) || !(buf[4+2] & 0x4))
1267 cdrReadInterruptSetResult(cdr.StatP);
1269 cdr.SetSectorPlay[2]++;
1270 if (cdr.SetSectorPlay[2] == 75) {
1271 cdr.SetSectorPlay[2] = 0;
1272 cdr.SetSectorPlay[1]++;
1273 if (cdr.SetSectorPlay[1] == 60) {
1274 cdr.SetSectorPlay[1] = 0;
1275 cdr.SetSectorPlay[0]++;
1279 if (!cdr.Irq1Pending) {
1280 // update for CdlGetlocP
1281 ReadTrack(cdr.SetSectorPlay);
1284 CDRPLAYSEEKREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0);
1293 bit 5 - 1 result ready
1295 bit 7 - 1 command being processed
1298 unsigned char cdrRead0(void) {
1299 if (cdr.ResultReady)
1304 cdr.Ctrl |= 0x40; // data fifo not empty
1306 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1309 CDR_LOG_IO("cdr r0.sta: %02x\n", cdr.Ctrl);
1311 return psxHu8(0x1800) = cdr.Ctrl;
1314 void cdrWrite0(unsigned char rt) {
1315 CDR_LOG_IO("cdr w0.idx: %02x\n", rt);
1317 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1320 unsigned char cdrRead1(void) {
1321 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1322 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1326 if (cdr.ResultP == cdr.ResultC)
1327 cdr.ResultReady = 0;
1329 CDR_LOG_IO("cdr r1.rsp: %02x #%u\n", psxHu8(0x1801), cdr.ResultP - 1);
1331 return psxHu8(0x1801);
1334 void cdrWrite1(unsigned char rt) {
1335 const char *rnames[] = { "cmd", "smd", "smc", "arr" }; (void)rnames;
1336 CDR_LOG_IO("cdr w1.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
1338 switch (cdr.Ctrl & 3) {
1342 cdr.AttenuatorRightToRightT = rt;
1348 #ifdef CDR_LOG_CMD_IRQ
1349 SysPrintf("%u cdrom: CD1 write: %x (%s)", psxRegs.cycle, rt, CmdName[rt]);
1352 SysPrintf(" Param[%d] = {", cdr.ParamC);
1353 for (i = 0; i < cdr.ParamC; i++)
1354 SysPrintf(" %x,", cdr.Param[i]);
1361 cdr.ResultReady = 0;
1364 if (!cdr.CmdInProgress) {
1365 cdr.CmdInProgress = rt;
1366 // should be something like 12k + controller delays
1370 CDR_LOG_I("%u cdrom: cmd while busy: %02x, prev %02x, busy %02x\n",
1371 psxRegs.cycle, rt, cdr.Cmd, cdr.CmdInProgress);
1372 if (cdr.CmdInProgress < 0x100) // no pending 2nd response
1373 cdr.CmdInProgress = rt;
1379 unsigned char cdrRead2(void) {
1380 unsigned char ret = 0;
1382 if (cdr.FifoOffset < cdr.FifoSize)
1383 ret = cdr.Transfer[cdr.FifoOffset++];
1385 CDR_LOG_I("cdrom: read empty fifo (%d)\n", cdr.FifoSize);
1387 CDR_LOG_IO("cdr r2.dat: %02x\n", ret);
1391 void cdrWrite2(unsigned char rt) {
1392 const char *rnames[] = { "prm", "ien", "all", "arl" }; (void)rnames;
1393 CDR_LOG_IO("cdr w2.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
1395 switch (cdr.Ctrl & 3) {
1397 if (cdr.ParamC < 8) // FIXME: size and wrapping
1398 cdr.Param[cdr.ParamC++] = rt;
1405 cdr.AttenuatorLeftToLeftT = rt;
1408 cdr.AttenuatorRightToLeftT = rt;
1413 unsigned char cdrRead3(void) {
1415 psxHu8(0x1803) = cdr.Stat | 0xE0;
1417 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1419 CDR_LOG_IO("cdr r3.%s: %02x\n", (cdr.Ctrl & 1) ? "ifl" : "ien", psxHu8(0x1803));
1420 return psxHu8(0x1803);
1423 void cdrWrite3(unsigned char rt) {
1424 const char *rnames[] = { "req", "ifl", "alr", "ava" }; (void)rnames;
1425 CDR_LOG_IO("cdr w3.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
1427 switch (cdr.Ctrl & 3) {
1431 if (cdr.Stat & rt) {
1432 #ifdef CDR_LOG_CMD_IRQ
1433 SysPrintf("%u cdrom: ack %02x (w %02x)\n",
1434 psxRegs.cycle, cdr.Stat & rt, rt);
1436 // note: Croc vs Discworld Noir
1437 if (!(psxRegs.interrupt & (1 << PSXINT_CDR)) &&
1438 (cdr.CmdInProgress || cdr.Irq1Pending))
1439 CDR_INT(850); // 711-993
1447 cdr.AttenuatorLeftToRightT = rt;
1451 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1452 CDR_LOG("CD-XA Volume: %02x %02x | %02x %02x\n",
1453 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1454 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1460 if ((rt & 0x80) && cdr.FifoOffset < cdr.FifoSize) {
1461 CDR_LOG("cdrom: FifoOffset(2) %d/%d\n", cdr.FifoOffset, cdr.FifoSize);
1463 else if (rt & 0x80) {
1464 switch (cdr.Mode & 0x30) {
1465 case MODE_SIZE_2328:
1467 cdr.FifoOffset = 12;
1468 cdr.FifoSize = 2048 + 12;
1471 case MODE_SIZE_2340:
1474 cdr.FifoSize = 2340;
1478 else if (!(rt & 0xc0))
1479 cdr.FifoOffset = DATA_SIZE; // fifo empty
1482 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1487 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1489 switch (chcr & 0x71000000) {
1491 ptr = (u8 *)PSXM(madr);
1492 if (ptr == INVALID_PTR) {
1493 CDR_LOG_I("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1497 cdsize = (((bcr - 1) & 0xffff) + 1) * 4;
1500 GS CDX: Enhancement CD crash
1503 - Spams DMA3 and gets buffer overrun
1505 size = DATA_SIZE - cdr.FifoOffset;
1510 memcpy(ptr, cdr.Transfer + cdr.FifoOffset, size);
1511 cdr.FifoOffset += size;
1512 psxCpu->Clear(madr, size / 4);
1515 CDR_LOG_I("cdrom: dma3 %d/%d\n", size, cdsize);
1517 CDRDMA_INT((cdsize/4) * 24);
1519 HW_DMA3_CHCR &= SWAPu32(~0x10000000);
1521 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1522 HW_DMA3_BCR &= SWAPu32(0xffff0000);
1526 psxRegs.cycle += (cdsize/4) * 24 - 20;
1531 CDR_LOG_I("psxDma3() Log: Unknown cddma %x\n", chcr);
1535 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1539 void cdrDmaInterrupt(void)
1541 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1543 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1548 static void getCdInfo(void)
1552 CDR_getTN(cdr.ResultTN);
1553 CDR_getTD(0, cdr.SetSectorEnd);
1554 tmp = cdr.SetSectorEnd[0];
1555 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1556 cdr.SetSectorEnd[2] = tmp;
1560 memset(&cdr, 0, sizeof(cdr));
1566 cdr.DriveState = DRIVESTATE_STANDBY;
1567 cdr.StatP = STATUS_ROTATING;
1568 cdr.FifoOffset = DATA_SIZE; // fifo empty
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 = cdr.FifoOffset;
1594 gzfreeze(&tmp, sizeof(tmp));
1599 cdr.FifoOffset = tmp;
1600 cdr.FifoSize = (cdr.Mode & 0x20) ? 2340 : 2048 + 12;
1602 // read right sub data
1603 tmpp[0] = btoi(cdr.Prev[0]);
1604 tmpp[1] = btoi(cdr.Prev[1]);
1605 tmpp[2] = btoi(cdr.Prev[2]);
1610 if (cdr.freeze_ver < 0x63647202)
1611 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1613 Find_CurTrack(cdr.SetSectorPlay);
1615 CDR_play(cdr.SetSectorPlay);
1616 if (psxRegs.interrupt & (1 << PSXINT_CDRPLAY_OLD))
1617 CDRPLAYSEEKREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime, 1);
1620 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1621 // old versions did not latch Reg2, have to fixup..
1622 if (cdr.Reg2 == 0) {
1623 SysPrintf("cdrom: fixing up old savestate\n");
1626 // also did not save Attenuator..
1627 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1628 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1630 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1638 void LidInterrupt(void) {
1640 cdrLidSeekInterrupt();