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("CDR IRQ=%d cmd %02x stat %02x: ",
299 !!(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("cdrom: cmd %02x with irqstat %x\n", cdr.CmdInProgress, cdr.Stat);
657 if (cdr.Irq1Pending) {
658 // hand out the "newest" sector, according to nocash
659 cdrUpdateTransferBuf(CDR_getBuffer());
660 CDR_LOG_I("cdrom: %x:%02x:%02x loaded on ack\n",
661 cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
663 cdr.Result[0] = cdr.Irq1Pending;
664 cdr.Stat = (cdr.Irq1Pending & STATUS_ERROR) ? DiskError : DataReady;
674 cdr.Result[0] = cdr.StatP;
675 cdr.Stat = Acknowledge;
677 Cmd = cdr.CmdInProgress;
678 cdr.CmdInProgress = 0;
688 if (cdr.DriveState != DRIVESTATE_LID_OPEN)
689 cdr.StatP &= ~STATUS_SHELLOPEN;
694 CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
696 // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
697 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))
699 CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
700 error = ERROR_INVALIDARG;
705 for (i = 0; i < 3; i++)
706 set_loc[i] = btoi(cdr.Param[i]);
707 memcpy(cdr.SetSector, set_loc, 3);
708 cdr.SetSector[3] = 0;
709 cdr.SetlocPending = 1;
718 cdr.FastBackward = 0;
722 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
724 if (ParamC != 0 && cdr.Param[0] != 0) {
725 int track = btoi( cdr.Param[0] );
727 if (track <= cdr.ResultTN[1])
728 cdr.CurTrack = track;
730 CDR_LOG("PLAY track %d\n", cdr.CurTrack);
732 if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
733 for (i = 0; i < 3; i++)
734 set_loc[i] = cdr.ResultTD[2 - i];
735 seekTime = cdrSeekTime(set_loc);
736 memcpy(cdr.SetSectorPlay, set_loc, 3);
739 else if (cdr.SetlocPending) {
740 seekTime = cdrSeekTime(cdr.SetSector);
741 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
744 CDR_LOG("PLAY Resume @ %d:%d:%d\n",
745 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
747 cdr.SetlocPending = 0;
750 Rayman: detect track changes
753 Twisted Metal 2: skip PREGAP + starting accurate SubQ
754 - plays tracks without retry play
756 Wild 9: skip PREGAP + starting accurate SubQ
757 - plays tracks without retry play
759 Find_CurTrack(cdr.SetSectorPlay);
760 ReadTrack(cdr.SetSectorPlay);
761 cdr.TrackChanged = FALSE;
765 CDR_play(cdr.SetSectorPlay);
767 SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING);
769 // BIOS player - set flag again
772 CDRPLAYSEEKREAD_INT(cdReadTime + seekTime, 1);
777 // TODO: error 80 if stopped
780 // GameShark CD Player: Calls 2x + Play 2x
782 cdr.FastBackward = 0;
788 // GameShark CD Player: Calls 2x + Play 2x
789 cdr.FastBackward = 1;
794 if (cdr.DriveState != DRIVESTATE_STOPPED) {
795 error = ERROR_INVALIDARG;
798 second_resp_time = cdReadTime * 125 / 2;
802 case CdlStandby + 0x100:
808 // grab time for current track
809 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
811 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
812 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
813 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
818 SetPlaySeekRead(cdr.StatP, 0);
819 cdr.StatP &= ~STATUS_ROTATING;
821 second_resp_time = 0x800;
822 if (cdr.DriveState == DRIVESTATE_STANDBY)
823 second_resp_time = cdReadTime * 30 / 2;
825 cdr.DriveState = DRIVESTATE_STOPPED;
828 case CdlStop + 0x100:
836 Gundam Battle Assault 2: much slower (*)
837 - Fixes boot, gameplay
839 Hokuto no Ken 2: slower
840 - Fixes intro + subtitles
842 InuYasha - Feudal Fairy Tale: slower
845 /* Gameblabla - Tightening the timings (as taken from Duckstation).
846 * The timings from Duckstation are based upon hardware tests.
847 * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode,
848 * seems to be timing sensitive as it can depend on the CPU's clock speed.
850 if (!(cdr.StatP & (STATUS_PLAY | STATUS_READ)))
852 second_resp_time = 7000;
856 second_resp_time = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * 1000000);
858 SetPlaySeekRead(cdr.StatP, 0);
862 case CdlPause + 0x100:
869 SetPlaySeekRead(cdr.StatP, 0);
871 cdr.Mode = 0x20; /* This fixes This is Football 2, Pooh's Party lockups */
872 second_resp_time = 4100000;
877 case CdlReset + 0x100:
890 cdr.File = cdr.Param[0];
891 cdr.Channel = cdr.Param[1];
895 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
896 cdr.Mode = cdr.Param[0];
901 /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */
903 cdr.Result[1] = cdr.Mode;
905 cdr.Result[3] = cdr.File;
906 cdr.Result[4] = cdr.Channel;
912 memcpy(cdr.Result, cdr.Transfer, 8);
917 memcpy(&cdr.Result, &cdr.subq, 8);
920 case CdlReadT: // SetSession?
922 second_resp_time = cdReadTime * 290 / 4;
926 case CdlReadT + 0x100:
932 if (CDR_getTN(cdr.ResultTN) == -1) {
933 cdr.Stat = DiskError;
934 cdr.Result[0] |= STATUS_ERROR;
936 cdr.Stat = Acknowledge;
937 cdr.Result[1] = itob(cdr.ResultTN[0]);
938 cdr.Result[2] = itob(cdr.ResultTN[1]);
943 cdr.Track = btoi(cdr.Param[0]);
945 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
946 cdr.Stat = DiskError;
947 cdr.Result[0] |= STATUS_ERROR;
949 cdr.Stat = Acknowledge;
950 cdr.Result[0] = cdr.StatP;
951 cdr.Result[1] = itob(cdr.ResultTD[2]);
952 cdr.Result[2] = itob(cdr.ResultTD[1]);
953 /* According to Nocash's documentation, the function doesn't care about ff.
954 * This can be seen also in Mednafen's implementation. */
955 //cdr.Result[3] = itob(cdr.ResultTD[0]);
963 SetPlaySeekRead(cdr.StatP, STATUS_SEEK);
965 seekTime = cdrSeekTime(cdr.SetSector);
966 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
968 Crusaders of Might and Magic = 0.5x-4x
969 - fix cutscene speech start
975 - fix cutscene speech
980 CDRPLAYSEEKREAD_INT(cdReadTime + seekTime, 1);
985 switch (cdr.Param[0]) {
986 case 0x20: // System Controller ROM Version
988 memcpy(cdr.Result, Test20, 4);
992 memcpy(cdr.Result, Test22, 4);
994 case 0x23: case 0x24:
996 memcpy(cdr.Result, Test23, 4);
1003 second_resp_time = 20480;
1008 cdr.Result[0] = cdr.StatP;
1013 // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
1014 if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
1015 cdr.Result[1] = 0xc0;
1019 cdr.Result[1] |= 0x10;
1020 if (CdromId[0] == '\0')
1021 cdr.Result[1] |= 0x80;
1023 cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;
1025 /* This adds the string "PCSX" in Playstation bios boot screen */
1026 memcpy((char *)&cdr.Result[4], "PCSX", 4);
1027 cdr.Stat = Complete;
1033 SetPlaySeekRead(cdr.StatP, 0);
1034 // yes, it really sets STATUS_SHELLOPEN
1035 cdr.StatP |= STATUS_SHELLOPEN;
1036 cdr.DriveState = DRIVESTATE_RESCAN_CD;
1047 second_resp_time = cdReadTime * 180 / 4;
1052 case CdlReadToc + 0x100:
1053 cdr.Stat = Complete;
1059 Find_CurTrack(cdr.SetlocPending ? cdr.SetSector : cdr.SetSectorPlay);
1061 if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
1062 // Read* acts as play for cdda tracks in cdda mode
1066 if (cdr.SetlocPending) {
1067 seekTime = cdrSeekTime(cdr.SetSector);
1068 memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
1069 cdr.SetlocPending = 0;
1072 cdr.FirstSector = 1;
1074 // Fighting Force 2 - update subq time immediately
1076 ReadTrack(cdr.SetSectorPlay);
1078 CDRPLAYSEEKREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime, 1);
1080 SetPlaySeekRead(cdr.StatP, STATUS_SEEK);
1085 CDR_LOG_I("Invalid command: %02x\n", Cmd);
1086 error = ERROR_INVALIDCMD;
1091 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1092 cdr.Result[1] = error;
1093 cdr.Stat = DiskError;
1097 if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
1098 cdr.DriveState = DRIVESTATE_STANDBY;
1099 cdr.StatP |= STATUS_ROTATING;
1102 if (!no_busy_error) {
1103 switch (cdr.DriveState) {
1104 case DRIVESTATE_LID_OPEN:
1105 case DRIVESTATE_RESCAN_CD:
1106 case DRIVESTATE_PREPARE_CD:
1108 cdr.Result[0] = cdr.StatP | STATUS_ERROR;
1109 cdr.Result[1] = ERROR_NOTREADY;
1110 cdr.Stat = DiskError;
1115 if (second_resp_time) {
1116 cdr.CmdInProgress = Cmd | 0x100;
1117 CDR_INT(second_resp_time);
1119 else if (cdr.Cmd && cdr.Cmd != (Cmd & 0xff)) {
1120 cdr.CmdInProgress = cdr.Cmd;
1121 CDR_LOG_I("cdrom: cmd %02x came before %02x finished\n", cdr.Cmd, Cmd);
1128 #define ssat32_to_16(v) \
1129 asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
1131 #define ssat32_to_16(v) do { \
1132 if (v < -32768) v = -32768; \
1133 else if (v > 32767) v = 32767; \
1137 static void cdrPrepCdda(s16 *buf, int samples)
1139 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1141 for (i = 0; i < samples; i++) {
1142 buf[i * 2 + 0] = SWAP16(buf[i * 2 + 0]);
1143 buf[i * 2 + 1] = SWAP16(buf[i * 2 + 1]);
1148 static void cdrAttenuate(s16 *buf, int samples, int stereo)
1151 int ll = cdr.AttenuatorLeftToLeft;
1152 int lr = cdr.AttenuatorLeftToRight;
1153 int rl = cdr.AttenuatorRightToLeft;
1154 int rr = cdr.AttenuatorRightToRight;
1156 if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88)
1159 if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40)
1163 for (i = 0; i < samples; i++) {
1166 l = (l * ll + r * rl) >> 7;
1167 r = (r * rr + l * lr) >> 7;
1175 for (i = 0; i < samples; i++) {
1177 l = l * (ll + rl) >> 7;
1178 //r = r * (rr + lr) >> 7;
1186 static void cdrReadInterruptSetResult(unsigned char result)
1189 CDR_LOG_I("cdrom: %d:%02d:%02d irq miss, cmd=%02x irqstat=%02x\n",
1190 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
1191 cdr.CmdInProgress, cdr.Stat);
1192 cdr.Irq1Pending = result;
1196 cdr.Result[0] = result;
1197 cdr.Stat = (result & STATUS_ERROR) ? DiskError : DataReady;
1201 static void cdrUpdateTransferBuf(const u8 *buf)
1205 memcpy(cdr.Transfer, buf, DATA_SIZE);
1206 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1207 CDR_LOG("cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1208 if (cdr.FifoOffset < 2048 + 12)
1209 CDR_LOG("cdrom: FifoOffset(1) %d/%d\n", cdr.FifoOffset, cdr.FifoSize);
1212 static void cdrReadInterrupt(void)
1214 u8 *buf = NULL, *hdr;
1216 SetPlaySeekRead(cdr.StatP, STATUS_READ | STATUS_ROTATING);
1218 ReadTrack(cdr.SetSectorPlay);
1220 buf = CDR_getBuffer();
1225 CDR_LOG_I("cdrReadInterrupt() Log: err\n");
1226 memset(cdr.Transfer, 0, DATA_SIZE);
1227 cdrReadInterruptSetResult(cdr.StatP | STATUS_ERROR);
1231 if (!cdr.Irq1Pending)
1232 cdrUpdateTransferBuf(buf);
1234 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1236 // Firemen 2: Multi-XA files - briefings, cutscenes
1237 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1239 cdr.Channel = hdr[1];
1243 * Skips playing on channel 255.
1244 * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
1245 * TODO : Check if this is the proper behaviour.
1247 if ((hdr[2] & 0x4) && hdr[0] == cdr.File && hdr[1] == cdr.Channel && cdr.Channel != 255) {
1248 int ret = xa_decode_sector(&cdr.Xa, buf + 4, cdr.FirstSector);
1250 cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
1251 SPU_playADPCMchannel(&cdr.Xa, psxRegs.cycle, cdr.FirstSector);
1252 cdr.FirstSector = 0;
1254 else cdr.FirstSector = -1;
1259 Croc 2: $40 - only FORM1 (*)
1260 Judge Dredd: $C8 - only FORM1 (*)
1261 Sim Theme Park - no adpcm at all (zero)
1264 if (!(cdr.Mode & MODE_STRSND) || !(buf[4+2] & 0x4))
1265 cdrReadInterruptSetResult(cdr.StatP);
1267 cdr.SetSectorPlay[2]++;
1268 if (cdr.SetSectorPlay[2] == 75) {
1269 cdr.SetSectorPlay[2] = 0;
1270 cdr.SetSectorPlay[1]++;
1271 if (cdr.SetSectorPlay[1] == 60) {
1272 cdr.SetSectorPlay[1] = 0;
1273 cdr.SetSectorPlay[0]++;
1277 if (!cdr.Irq1Pending) {
1278 // update for CdlGetlocP
1279 ReadTrack(cdr.SetSectorPlay);
1282 CDRPLAYSEEKREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0);
1291 bit 5 - 1 result ready
1293 bit 7 - 1 command being processed
1296 unsigned char cdrRead0(void) {
1297 if (cdr.ResultReady)
1302 cdr.Ctrl |= 0x40; // data fifo not empty
1304 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1307 CDR_LOG_IO("cdr r0.sta: %02x\n", cdr.Ctrl);
1309 return psxHu8(0x1800) = cdr.Ctrl;
1312 void cdrWrite0(unsigned char rt) {
1313 CDR_LOG_IO("cdr w0.idx: %02x\n", rt);
1315 cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1318 unsigned char cdrRead1(void) {
1319 if ((cdr.ResultP & 0xf) < cdr.ResultC)
1320 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1324 if (cdr.ResultP == cdr.ResultC)
1325 cdr.ResultReady = 0;
1327 CDR_LOG_IO("cdr r1.rsp: %02x #%u\n", psxHu8(0x1801), cdr.ResultP - 1);
1329 return psxHu8(0x1801);
1332 void cdrWrite1(unsigned char rt) {
1333 const char *rnames[] = { "cmd", "smd", "smc", "arr" }; (void)rnames;
1334 CDR_LOG_IO("cdr w1.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
1336 switch (cdr.Ctrl & 3) {
1340 cdr.AttenuatorRightToRightT = rt;
1346 #ifdef CDR_LOG_CMD_IRQ
1347 SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
1350 SysPrintf(" Param[%d] = {", cdr.ParamC);
1351 for (i = 0; i < cdr.ParamC; i++)
1352 SysPrintf(" %x,", cdr.Param[i]);
1359 cdr.ResultReady = 0;
1362 if (!cdr.CmdInProgress) {
1363 cdr.CmdInProgress = rt;
1364 // should be something like 12k + controller delays
1368 CDR_LOG_I("cdr: cmd while busy: %02x, prev %02x, busy %02x\n",
1369 rt, cdr.Cmd, cdr.CmdInProgress);
1370 if (cdr.CmdInProgress < 0x100) // no pending 2nd response
1371 cdr.CmdInProgress = rt;
1377 unsigned char cdrRead2(void) {
1378 unsigned char ret = 0;
1380 if (cdr.FifoOffset < cdr.FifoSize)
1381 ret = cdr.Transfer[cdr.FifoOffset++];
1383 CDR_LOG_I("cdrom: read empty fifo (%d)\n", cdr.FifoSize);
1385 CDR_LOG_IO("cdr r2.dat: %02x\n", ret);
1389 void cdrWrite2(unsigned char rt) {
1390 const char *rnames[] = { "prm", "ien", "all", "arl" }; (void)rnames;
1391 CDR_LOG_IO("cdr w2.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
1393 switch (cdr.Ctrl & 3) {
1395 if (cdr.ParamC < 8) // FIXME: size and wrapping
1396 cdr.Param[cdr.ParamC++] = rt;
1403 cdr.AttenuatorLeftToLeftT = rt;
1406 cdr.AttenuatorRightToLeftT = rt;
1411 unsigned char cdrRead3(void) {
1413 psxHu8(0x1803) = cdr.Stat | 0xE0;
1415 psxHu8(0x1803) = cdr.Reg2 | 0xE0;
1417 CDR_LOG_IO("cdr r3.%s: %02x\n", (cdr.Ctrl & 1) ? "ifl" : "ien", psxHu8(0x1803));
1418 return psxHu8(0x1803);
1421 void cdrWrite3(unsigned char rt) {
1422 const char *rnames[] = { "req", "ifl", "alr", "ava" }; (void)rnames;
1423 CDR_LOG_IO("cdr w3.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
1425 switch (cdr.Ctrl & 3) {
1429 if (cdr.Stat & rt) {
1430 #ifdef CDR_LOG_CMD_IRQ
1431 SysPrintf("ack %02x (w %02x)\n", cdr.Stat & rt, rt);
1433 if (!(psxRegs.interrupt & (1 << PSXINT_CDR)) &&
1434 (cdr.CmdInProgress || cdr.Irq1Pending))
1435 CDR_INT(2000); // 710+
1443 cdr.AttenuatorLeftToRightT = rt;
1447 memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
1448 CDR_LOG("CD-XA Volume: %02x %02x | %02x %02x\n",
1449 cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
1450 cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
1456 if ((rt & 0x80) && cdr.FifoOffset < cdr.FifoSize) {
1457 CDR_LOG("cdrom: FifoOffset(2) %d/%d\n", cdr.FifoOffset, cdr.FifoSize);
1459 else if (rt & 0x80) {
1460 switch (cdr.Mode & 0x30) {
1461 case MODE_SIZE_2328:
1463 cdr.FifoOffset = 12;
1464 cdr.FifoSize = 2048 + 12;
1467 case MODE_SIZE_2340:
1470 cdr.FifoSize = 2340;
1474 else if (!(rt & 0xc0))
1475 cdr.FifoOffset = DATA_SIZE; // fifo empty
1478 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1483 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1485 switch (chcr & 0x71000000) {
1487 ptr = (u8 *)PSXM(madr);
1488 if (ptr == INVALID_PTR) {
1489 CDR_LOG_I("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1493 cdsize = (((bcr - 1) & 0xffff) + 1) * 4;
1496 GS CDX: Enhancement CD crash
1499 - Spams DMA3 and gets buffer overrun
1501 size = DATA_SIZE - cdr.FifoOffset;
1506 memcpy(ptr, cdr.Transfer + cdr.FifoOffset, size);
1507 cdr.FifoOffset += size;
1508 psxCpu->Clear(madr, size / 4);
1511 CDR_LOG_I("cdrom: dma3 %d/%d\n", size, cdsize);
1513 CDRDMA_INT((cdsize/4) * 24);
1515 HW_DMA3_CHCR &= SWAPu32(~0x10000000);
1517 HW_DMA3_MADR = SWAPu32(madr + cdsize);
1518 HW_DMA3_BCR &= SWAPu32(0xffff0000);
1522 psxRegs.cycle += (cdsize/4) * 24 - 20;
1527 CDR_LOG_I("psxDma3() Log: Unknown cddma %x\n", chcr);
1531 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1535 void cdrDmaInterrupt(void)
1537 if (HW_DMA3_CHCR & SWAP32(0x01000000))
1539 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1544 static void getCdInfo(void)
1548 CDR_getTN(cdr.ResultTN);
1549 CDR_getTD(0, cdr.SetSectorEnd);
1550 tmp = cdr.SetSectorEnd[0];
1551 cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2];
1552 cdr.SetSectorEnd[2] = tmp;
1556 memset(&cdr, 0, sizeof(cdr));
1562 cdr.DriveState = DRIVESTATE_STANDBY;
1563 cdr.StatP = STATUS_ROTATING;
1564 cdr.FifoOffset = DATA_SIZE; // fifo empty
1566 // BIOS player - default values
1567 cdr.AttenuatorLeftToLeft = 0x80;
1568 cdr.AttenuatorLeftToRight = 0x00;
1569 cdr.AttenuatorRightToLeft = 0x00;
1570 cdr.AttenuatorRightToRight = 0x80;
1575 int cdrFreeze(void *f, int Mode) {
1579 if (Mode == 0 && !Config.Cdda)
1582 cdr.freeze_ver = 0x63647202;
1583 gzfreeze(&cdr, sizeof(cdr));
1586 cdr.ParamP = cdr.ParamC;
1587 tmp = cdr.FifoOffset;
1590 gzfreeze(&tmp, sizeof(tmp));
1595 cdr.FifoOffset = tmp;
1596 cdr.FifoSize = (cdr.Mode & 0x20) ? 2340 : 2048 + 12;
1598 // read right sub data
1599 tmpp[0] = btoi(cdr.Prev[0]);
1600 tmpp[1] = btoi(cdr.Prev[1]);
1601 tmpp[2] = btoi(cdr.Prev[2]);
1606 if (cdr.freeze_ver < 0x63647202)
1607 memcpy(cdr.SetSectorPlay, cdr.SetSector, 3);
1609 Find_CurTrack(cdr.SetSectorPlay);
1611 CDR_play(cdr.SetSectorPlay);
1612 if (psxRegs.interrupt & (1 << PSXINT_CDRPLAY_OLD))
1613 CDRPLAYSEEKREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime, 1);
1616 if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
1617 // old versions did not latch Reg2, have to fixup..
1618 if (cdr.Reg2 == 0) {
1619 SysPrintf("cdrom: fixing up old savestate\n");
1622 // also did not save Attenuator..
1623 if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight
1624 | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0)
1626 cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80;
1634 void LidInterrupt(void) {
1636 cdrLidSeekInterrupt();