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 02111-1307 USA. *
18 ***************************************************************************/
21 * Handles all CD-ROM registers and functions.
29 /* CD-ROM magic numbers */
43 #define CdlSetfilter 13
53 #define CdlSetclock 23
54 #define CdlGetclock 24
64 #define REPPLAY_ACK 252
67 /* don't set 255, it's reserved */
69 char *CmdName[0x100]= {
70 "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
71 "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
72 "CdlStop", "CdlPause", "CdlInit", "CdlMute",
73 "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
74 "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
75 "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
76 "CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
77 "CdlReset", NULL, "CDlReadToc", NULL
80 unsigned char Test04[] = { 0 };
81 unsigned char Test05[] = { 0 };
82 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
83 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
84 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
86 // 1x = 75 sectors per second
87 // PSXCLK = 1 sec in the ps
88 // so (PSXCLK / 75) = cdr read time (linuzappz)
89 #define cdReadTime (PSXCLK / 75)
91 static struct CdrStat stat;
92 static struct SubQ *subq;
94 #define CDR_INT(eCycle) { \
95 psxRegs.interrupt |= 0x4; \
96 psxRegs.intCycle[2 + 1] = eCycle; \
97 psxRegs.intCycle[2] = psxRegs.cycle; \
98 new_dyna_set_event(0, psxRegs.cycle + eCycle); \
101 #define CDREAD_INT(eCycle) { \
102 psxRegs.interrupt |= 0x40000; \
103 psxRegs.intCycle[2 + 16 + 1] = eCycle; \
104 psxRegs.intCycle[2 + 16] = psxRegs.cycle; \
105 new_dyna_set_event(2, psxRegs.cycle + eCycle); \
108 #define StartReading(type, eCycle) { \
109 cdr.Reading = type; \
110 cdr.FirstSector = 1; \
112 AddIrqQueue(READ_ACK, eCycle); \
115 #define StopReading() { \
118 psxRegs.interrupt &= ~0x40000; \
123 #define StopCdda() { \
125 if (!Config.Cdda) CDR_stop(); \
126 cdr.StatP &= ~0x80; \
131 #define SetResultSize(size) { \
133 cdr.ResultC = size; \
134 cdr.ResultReady = 1; \
137 static void ReadTrack() {
138 cdr.Prev[0] = itob(cdr.SetSector[0]);
139 cdr.Prev[1] = itob(cdr.SetSector[1]);
140 cdr.Prev[2] = itob(cdr.SetSector[2]);
143 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
145 cdr.RErr = CDR_readTrack(cdr.Prev);
152 #define Acknowledge 3
156 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
165 void cdrInterrupt() {
167 unsigned char Irq = cdr.Irq;
181 cdr.Result[0] = cdr.StatP;
182 cdr.Stat = Acknowledge;
187 cdr.Result[0] = cdr.StatP;
188 cdr.Stat = Acknowledge;
190 if (CDR_getStatus(&stat) != -1) {
191 if (stat.Type == 0xff) cdr.Stat = DiskError;
192 if (stat.Status & 0x10) {
193 cdr.Stat = DiskError;
194 cdr.Result[0] |= 0x11;
195 cdr.Result[0] &= ~0x02;
199 cdr.Result[0] |= 0x2;
209 cdr.Result[0] = cdr.StatP;
210 cdr.Stat = Acknowledge;
217 cdr.Result[0] = cdr.StatP;
218 cdr.Stat = Acknowledge;
220 // if ((cdr.Mode & 0x5) == 0x5) AddIrqQueue(REPPLAY, cdReadTime);
227 cdr.Result[0] = cdr.StatP;
235 cdr.Result[0] = cdr.StatP;
243 cdr.Result[0] = cdr.StatP;
251 cdr.Result[0] = cdr.StatP;
253 // cdr.Stat = Acknowledge;
255 // check case open/close -shalma
257 if (CDR_getStatus(&stat) != -1) {
258 if (stat.Type == 0xff) cdr.Stat = DiskError;
259 if (stat.Status & 0x10) {
260 cdr.Stat = DiskError;
261 cdr.Result[0] |= 0x11;
262 cdr.Result[0] &= ~0x02;
266 cdr.Result[0] |= 0x2;
274 cdr.Result[0] = cdr.StatP;
275 cdr.Stat = Acknowledge;
276 AddIrqQueue(CdlPause + 0x20, 0x1000);
280 case CdlPause + 0x20:
284 cdr.Result[0] = cdr.StatP;
291 cdr.Result[0] = cdr.StatP;
292 cdr.Stat = Acknowledge;
294 AddIrqQueue(CdlInit + 0x20, 0x1000);
300 cdr.Result[0] = cdr.StatP;
308 cdr.Result[0] = cdr.StatP;
309 cdr.Stat = Acknowledge;
315 cdr.Result[0] = cdr.StatP;
316 cdr.Stat = Acknowledge;
322 cdr.Result[0] = cdr.StatP;
323 cdr.Stat = Acknowledge;
329 cdr.Result[0] = cdr.StatP;
330 cdr.Stat = Acknowledge;
336 cdr.Result[0] = cdr.StatP;
337 cdr.Result[1] = cdr.Mode;
338 cdr.Result[2] = cdr.File;
339 cdr.Result[3] = cdr.Channel;
342 cdr.Stat = Acknowledge;
347 // for (i = 0; i < 8; i++)
348 // cdr.Result[i] = itob(cdr.Transfer[i]);
349 for (i = 0; i < 8; i++)
350 cdr.Result[i] = cdr.Transfer[i];
351 cdr.Stat = Acknowledge;
356 subq = (struct SubQ *)CDR_getBufferSub();
359 cdr.Result[0] = subq->TrackNumber;
360 cdr.Result[1] = subq->IndexNumber;
361 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
362 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
364 // subQ integrity check
365 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
366 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
372 cdr.Result[2] = btoi(cdr.Prev[0]);
373 cdr.Result[3] = btoi(cdr.Prev[1]) - 2;
374 cdr.Result[4] = cdr.Prev[2];
377 if ((s8)cdr.Result[3] < 0) {
382 cdr.Result[2] = itob(cdr.Result[2]);
383 cdr.Result[3] = itob(cdr.Result[3]);
385 memcpy(cdr.Result + 5, cdr.Prev, 3);
388 cdr.Stat = Acknowledge;
395 cdr.Result[0] = cdr.StatP;
396 if (CDR_getTN(cdr.ResultTN) == -1) {
397 cdr.Stat = DiskError;
398 cdr.Result[0] |= 0x01;
400 cdr.Stat = Acknowledge;
401 cdr.Result[1] = itob(cdr.ResultTN[0]);
402 cdr.Result[2] = itob(cdr.ResultTN[1]);
408 cdr.Track = btoi(cdr.Param[0]);
411 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
412 cdr.Stat = DiskError;
413 cdr.Result[0] |= 0x01;
415 cdr.Stat = Acknowledge;
416 cdr.Result[0] = cdr.StatP;
417 cdr.Result[1] = itob(cdr.ResultTD[2]);
418 cdr.Result[2] = itob(cdr.ResultTD[1]);
419 cdr.Result[3] = itob(cdr.ResultTD[0]);
426 cdr.Result[0] = cdr.StatP;
428 cdr.Stat = Acknowledge;
430 AddIrqQueue(CdlSeekL + 0x20, 0x1000);
433 case CdlSeekL + 0x20:
437 cdr.Result[0] = cdr.StatP;
444 cdr.Result[0] = cdr.StatP;
446 cdr.Stat = Acknowledge;
447 AddIrqQueue(CdlSeekP + 0x20, 0x1000);
450 case CdlSeekP + 0x20:
454 cdr.Result[0] = cdr.StatP;
459 cdr.Stat = Acknowledge;
460 switch (cdr.Param[0]) {
461 case 0x20: // System Controller ROM Version
463 memcpy(cdr.Result, Test20, 4);
467 memcpy(cdr.Result, Test22, 4);
469 case 0x23: case 0x24:
471 memcpy(cdr.Result, Test23, 4);
479 cdr.Result[0] = cdr.StatP;
480 cdr.Stat = Acknowledge;
481 AddIrqQueue(CdlID + 0x20, 0x1000);
486 if (CDR_getStatus(&stat) == -1) {
487 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
488 cdr.Result[1] = 0x00; // 0x80 leads to the menu in the bios, else loads CD
491 if (stat.Type == 2) {
492 cdr.Result[0] = 0x08;
493 cdr.Result[1] = 0x10;
496 cdr.Result[0] = 0x00;
497 cdr.Result[1] = 0x00;
500 cdr.Result[1] |= 0x80;
501 cdr.Result[2] = 0x00;
502 cdr.Result[3] = 0x00;
503 strncpy((char *)&cdr.Result[4], "PCSX", 4);
510 cdr.Result[0] = cdr.StatP;
511 cdr.Stat = Acknowledge;
517 cdr.Result[0] = cdr.StatP;
518 cdr.Stat = Acknowledge;
519 AddIrqQueue(CdlReadToc + 0x20, 0x1000);
522 case CdlReadToc + 0x20:
525 cdr.Result[0] = cdr.StatP;
537 cdr.Result[0] = cdr.StatP;
539 */ AddIrqQueue(CdlPause, 0x800);
543 if (!cdr.Reading) return;
547 cdr.Result[0] = cdr.StatP;
553 cdr.Stat = Acknowledge;
555 // CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
560 cdr.Stat = Acknowledge;
561 cdr.Result[0] = cdr.StatP;
563 AddIrqQueue(REPPLAY, cdReadTime);
567 if ((cdr.Mode & 5) != 5) break;
568 /* if (CDR_getStatus(&stat) == -1) {
577 } else memcpy(cdr.Result, &stat.Track, 8);
580 AddIrqQueue(REPPLAY_ACK, cdReadTime);
591 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
592 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
596 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
600 void cdrReadInterrupt() {
612 CDR_LOG("cdrReadInterrupt() Log: KEY END");
619 cdr.Result[0] = cdr.StatP;
623 buf = CDR_getBuffer();
627 if (cdr.RErr == -1) {
629 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
631 memset(cdr.Transfer, 0, DATA_SIZE);
632 cdr.Stat = DiskError;
633 cdr.Result[0] |= 0x01;
634 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
638 memcpy(cdr.Transfer, buf, DATA_SIZE);
639 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
641 cdr.Stat = DataReady;
644 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
647 if ((!cdr.Muted) && (cdr.Mode & 0x40) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
648 if ((cdr.Transfer[4 + 2] & 0x4) &&
649 ((cdr.Mode & 0x8) ? (cdr.Transfer[4 + 1] == cdr.Channel) : 1) &&
650 (cdr.Transfer[4 + 0] == cdr.File)) {
651 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
654 SPU_playADPCMchannel(&cdr.Xa);
657 else cdr.FirstSector = -1;
662 if (cdr.SetSector[2] == 75) {
663 cdr.SetSector[2] = 0;
665 if (cdr.SetSector[1] == 60) {
666 cdr.SetSector[1] = 0;
673 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & 0x2)) { // EOF
675 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
677 // AddIrqQueue(AUTOPAUSE, 0x1000);
678 AddIrqQueue(CdlPause, 0x1000);
681 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
683 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
688 bit 0 - 0 REG1 command send / 1 REG1 data read
689 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
693 bit 5 - 1 result ready
695 bit 7 - 1 command being processed
698 unsigned char cdrRead0(void) {
707 // cdr.Ctrl &= ~0x40;
709 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
713 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
716 return psxHu8(0x1800) = cdr.Ctrl;
721 0 - to send a command / 1 - to get the result
724 void cdrWrite0(unsigned char rt) {
726 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
728 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
737 unsigned char cdrRead1(void) {
738 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
739 psxHu8(0x1801) = cdr.Result[cdr.ResultP++];
740 if (cdr.ResultP == cdr.ResultC)
746 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
748 return psxHu8(0x1801);
751 void cdrWrite1(unsigned char rt) {
755 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
757 // psxHu8(0x1801) = rt;
762 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
764 SysPrintf(" Param[%d] = {", cdr.ParamC);
765 for (i = 0; i < cdr.ParamC; i++)
766 SysPrintf(" %x,", cdr.Param[i]);
773 if (cdr.Ctrl & 0x1) return;
779 AddIrqQueue(cdr.Cmd, 0x1000);
785 AddIrqQueue(cdr.Cmd, 0x1000);
791 for (i = 0; i < 3; i++)
792 cdr.SetSector[i] = btoi(cdr.Param[i]);
793 cdr.SetSector[3] = 0;
794 /* if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
795 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
799 AddIrqQueue(cdr.Cmd, 0x1000);
803 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
804 if (CDR_getTN(cdr.ResultTN) != -1) {
805 if (cdr.CurTrack > cdr.ResultTN[1])
806 cdr.CurTrack = cdr.ResultTN[1];
807 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
808 int tmp = cdr.ResultTD[2];
809 cdr.ResultTD[2] = cdr.ResultTD[0];
810 cdr.ResultTD[0] = tmp;
811 if (!Config.Cdda) CDR_play(cdr.ResultTD);
814 } else if (!Config.Cdda) {
815 CDR_play(cdr.SetSector);
820 AddIrqQueue(cdr.Cmd, 0x1000);
824 if (cdr.CurTrack < 0xaa)
828 AddIrqQueue(cdr.Cmd, 0x1000);
832 if (cdr.CurTrack > 1)
836 AddIrqQueue(cdr.Cmd, 0x1000);
844 StartReading(1, 0x1000);
852 AddIrqQueue(cdr.Cmd, 0x1000);
860 AddIrqQueue(cdr.Cmd, 0x1000);
868 AddIrqQueue(cdr.Cmd, 0x80000);
877 AddIrqQueue(cdr.Cmd, 0x1000);
884 AddIrqQueue(cdr.Cmd, 0x1000);
891 AddIrqQueue(cdr.Cmd, 0x1000);
895 cdr.File = cdr.Param[0];
896 cdr.Channel = cdr.Param[1];
899 AddIrqQueue(cdr.Cmd, 0x1000);
904 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
906 cdr.Mode = cdr.Param[0];
909 AddIrqQueue(cdr.Cmd, 0x1000);
915 AddIrqQueue(cdr.Cmd, 0x1000);
921 AddIrqQueue(cdr.Cmd, 0x1000);
927 AddIrqQueue(cdr.Cmd, 0x1000);
933 AddIrqQueue(cdr.Cmd, 0x1000);
939 AddIrqQueue(cdr.Cmd, 0x1000);
943 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
946 AddIrqQueue(cdr.Cmd, 0x1000);
950 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
953 AddIrqQueue(cdr.Cmd, 0x1000);
959 AddIrqQueue(cdr.Cmd, 0x1000);
965 AddIrqQueue(cdr.Cmd, 0x1000);
973 StartReading(2, 0x1000);
979 AddIrqQueue(cdr.Cmd, 0x1000);
984 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
988 if (cdr.Stat != NoIntr) {
989 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
993 unsigned char cdrRead2(void) {
996 if (cdr.Readed == 0) {
999 ret = *cdr.pTransfer++;
1003 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1008 void cdrWrite2(unsigned char rt) {
1010 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1012 if (cdr.Ctrl & 0x1) {
1017 cdr.ResultReady = 1; //0;
1018 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1025 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
1026 cdr.Param[cdr.ParamP++] = rt;
1031 unsigned char cdrRead3(void) {
1034 psxHu8(0x1803) = cdr.Stat | 0xE0;
1036 psxHu8(0x1803) = 0xff;
1041 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1043 return psxHu8(0x1803);
1046 void cdrWrite3(unsigned char rt) {
1048 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1050 if (rt == 0x07 && cdr.Ctrl & 0x1) {
1053 if (cdr.Irq == 0xff) {
1058 CDR_INT(cdr.eCycle);
1059 if (cdr.Reading && !cdr.ResultReady)
1060 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1064 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1066 cdr.pTransfer = cdr.Transfer;
1068 switch (cdr.Mode & 0x30) {
1071 cdr.pTransfer += 12;
1079 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1084 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1090 if (cdr.Readed == 0) {
1092 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1097 cdsize = (bcr & 0xffff) * 4;
1099 ptr = (u8 *)PSXM(madr);
1102 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1106 memcpy(ptr, cdr.pTransfer, cdsize);
1107 psxCpu->Clear(madr, cdsize / 4);
1108 cdr.pTransfer += cdsize;
1112 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1117 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1122 memset(&cdr, 0, sizeof(cdr));
1128 int cdrFreeze(gzFile f, int Mode) {
1131 gzfreeze(&cdr, sizeof(cdr));
1134 tmp = cdr.pTransfer - cdr.Transfer;
1136 gzfreeze(&tmp, sizeof(tmp));
1139 cdr.pTransfer = cdr.Transfer + tmp;