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; }
99 #define CDREAD_INT(eCycle) { \
100 psxRegs.interrupt |= 0x40000; \
101 psxRegs.intCycle[2 + 16 + 1] = eCycle; \
102 psxRegs.intCycle[2 + 16] = psxRegs.cycle; }
104 #define StartReading(type, eCycle) { \
105 cdr.Reading = type; \
106 cdr.FirstSector = 1; \
108 AddIrqQueue(READ_ACK, eCycle); \
111 #define StopReading() { \
114 psxRegs.interrupt &= ~0x40000; \
119 #define StopCdda() { \
121 if (!Config.Cdda) CDR_stop(); \
122 cdr.StatP &= ~0x80; \
127 #define SetResultSize(size) { \
129 cdr.ResultC = size; \
130 cdr.ResultReady = 1; \
133 static void ReadTrack() {
134 cdr.Prev[0] = itob(cdr.SetSector[0]);
135 cdr.Prev[1] = itob(cdr.SetSector[1]);
136 cdr.Prev[2] = itob(cdr.SetSector[2]);
139 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
141 cdr.RErr = CDR_readTrack(cdr.Prev);
148 #define Acknowledge 3
152 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
161 void cdrInterrupt() {
163 unsigned char Irq = cdr.Irq;
177 cdr.Result[0] = cdr.StatP;
178 cdr.Stat = Acknowledge;
183 cdr.Result[0] = cdr.StatP;
184 cdr.Stat = Acknowledge;
186 if (CDR_getStatus(&stat) != -1) {
187 if (stat.Type == 0xff) cdr.Stat = DiskError;
188 if (stat.Status & 0x10) {
189 cdr.Stat = DiskError;
190 cdr.Result[0] |= 0x11;
191 cdr.Result[0] &= ~0x02;
195 cdr.Result[0] |= 0x2;
205 cdr.Result[0] = cdr.StatP;
206 cdr.Stat = Acknowledge;
213 cdr.Result[0] = cdr.StatP;
214 cdr.Stat = Acknowledge;
216 // if ((cdr.Mode & 0x5) == 0x5) AddIrqQueue(REPPLAY, cdReadTime);
223 cdr.Result[0] = cdr.StatP;
231 cdr.Result[0] = cdr.StatP;
239 cdr.Result[0] = cdr.StatP;
247 cdr.Result[0] = cdr.StatP;
249 // cdr.Stat = Acknowledge;
251 // check case open/close -shalma
253 if (CDR_getStatus(&stat) != -1) {
254 if (stat.Type == 0xff) cdr.Stat = DiskError;
255 if (stat.Status & 0x10) {
256 cdr.Stat = DiskError;
257 cdr.Result[0] |= 0x11;
258 cdr.Result[0] &= ~0x02;
262 cdr.Result[0] |= 0x2;
270 cdr.Result[0] = cdr.StatP;
271 cdr.Stat = Acknowledge;
272 AddIrqQueue(CdlPause + 0x20, 0x1000);
276 case CdlPause + 0x20:
280 cdr.Result[0] = cdr.StatP;
287 cdr.Result[0] = cdr.StatP;
288 cdr.Stat = Acknowledge;
290 AddIrqQueue(CdlInit + 0x20, 0x1000);
296 cdr.Result[0] = cdr.StatP;
304 cdr.Result[0] = cdr.StatP;
305 cdr.Stat = Acknowledge;
311 cdr.Result[0] = cdr.StatP;
312 cdr.Stat = Acknowledge;
318 cdr.Result[0] = cdr.StatP;
319 cdr.Stat = Acknowledge;
325 cdr.Result[0] = cdr.StatP;
326 cdr.Stat = Acknowledge;
332 cdr.Result[0] = cdr.StatP;
333 cdr.Result[1] = cdr.Mode;
334 cdr.Result[2] = cdr.File;
335 cdr.Result[3] = cdr.Channel;
338 cdr.Stat = Acknowledge;
343 // for (i = 0; i < 8; i++)
344 // cdr.Result[i] = itob(cdr.Transfer[i]);
345 for (i = 0; i < 8; i++)
346 cdr.Result[i] = cdr.Transfer[i];
347 cdr.Stat = Acknowledge;
352 subq = (struct SubQ *)CDR_getBufferSub();
355 cdr.Result[0] = subq->TrackNumber;
356 cdr.Result[1] = subq->IndexNumber;
357 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
358 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
360 // subQ integrity check
361 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
362 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
368 cdr.Result[2] = btoi(cdr.Prev[0]);
369 cdr.Result[3] = btoi(cdr.Prev[1]) - 2;
370 cdr.Result[4] = cdr.Prev[2];
373 if ((s8)cdr.Result[3] < 0) {
378 cdr.Result[2] = itob(cdr.Result[2]);
379 cdr.Result[3] = itob(cdr.Result[3]);
381 memcpy(cdr.Result + 5, cdr.Prev, 3);
384 cdr.Stat = Acknowledge;
391 cdr.Result[0] = cdr.StatP;
392 if (CDR_getTN(cdr.ResultTN) == -1) {
393 cdr.Stat = DiskError;
394 cdr.Result[0] |= 0x01;
396 cdr.Stat = Acknowledge;
397 cdr.Result[1] = itob(cdr.ResultTN[0]);
398 cdr.Result[2] = itob(cdr.ResultTN[1]);
404 cdr.Track = btoi(cdr.Param[0]);
407 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
408 cdr.Stat = DiskError;
409 cdr.Result[0] |= 0x01;
411 cdr.Stat = Acknowledge;
412 cdr.Result[0] = cdr.StatP;
413 cdr.Result[1] = itob(cdr.ResultTD[2]);
414 cdr.Result[2] = itob(cdr.ResultTD[1]);
415 cdr.Result[3] = itob(cdr.ResultTD[0]);
422 cdr.Result[0] = cdr.StatP;
424 cdr.Stat = Acknowledge;
426 AddIrqQueue(CdlSeekL + 0x20, 0x1000);
429 case CdlSeekL + 0x20:
433 cdr.Result[0] = cdr.StatP;
440 cdr.Result[0] = cdr.StatP;
442 cdr.Stat = Acknowledge;
443 AddIrqQueue(CdlSeekP + 0x20, 0x1000);
446 case CdlSeekP + 0x20:
450 cdr.Result[0] = cdr.StatP;
455 cdr.Stat = Acknowledge;
456 switch (cdr.Param[0]) {
457 case 0x20: // System Controller ROM Version
459 memcpy(cdr.Result, Test20, 4);
463 memcpy(cdr.Result, Test22, 4);
465 case 0x23: case 0x24:
467 memcpy(cdr.Result, Test23, 4);
475 cdr.Result[0] = cdr.StatP;
476 cdr.Stat = Acknowledge;
477 AddIrqQueue(CdlID + 0x20, 0x1000);
482 if (CDR_getStatus(&stat) == -1) {
483 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
484 cdr.Result[1] = 0x00; // 0x80 leads to the menu in the bios, else loads CD
487 if (stat.Type == 2) {
488 cdr.Result[0] = 0x08;
489 cdr.Result[1] = 0x10;
492 cdr.Result[0] = 0x00;
493 cdr.Result[1] = 0x00;
496 cdr.Result[1] |= 0x80;
497 cdr.Result[2] = 0x00;
498 cdr.Result[3] = 0x00;
499 strncpy((char *)&cdr.Result[4], "PCSX", 4);
506 cdr.Result[0] = cdr.StatP;
507 cdr.Stat = Acknowledge;
513 cdr.Result[0] = cdr.StatP;
514 cdr.Stat = Acknowledge;
515 AddIrqQueue(CdlReadToc + 0x20, 0x1000);
518 case CdlReadToc + 0x20:
521 cdr.Result[0] = cdr.StatP;
533 cdr.Result[0] = cdr.StatP;
535 */ AddIrqQueue(CdlPause, 0x800);
539 if (!cdr.Reading) return;
543 cdr.Result[0] = cdr.StatP;
549 cdr.Stat = Acknowledge;
551 // CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
556 cdr.Stat = Acknowledge;
557 cdr.Result[0] = cdr.StatP;
559 AddIrqQueue(REPPLAY, cdReadTime);
563 if ((cdr.Mode & 5) != 5) break;
564 /* if (CDR_getStatus(&stat) == -1) {
573 } else memcpy(cdr.Result, &stat.Track, 8);
576 AddIrqQueue(REPPLAY_ACK, cdReadTime);
587 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
588 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
592 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
596 void cdrReadInterrupt() {
608 CDR_LOG("cdrReadInterrupt() Log: KEY END");
615 cdr.Result[0] = cdr.StatP;
619 buf = CDR_getBuffer();
623 if (cdr.RErr == -1) {
625 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
627 memset(cdr.Transfer, 0, DATA_SIZE);
628 cdr.Stat = DiskError;
629 cdr.Result[0] |= 0x01;
630 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
634 memcpy(cdr.Transfer, buf, DATA_SIZE);
635 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
637 cdr.Stat = DataReady;
640 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
643 if ((!cdr.Muted) && (cdr.Mode & 0x40) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
644 if ((cdr.Transfer[4 + 2] & 0x4) &&
645 ((cdr.Mode & 0x8) ? (cdr.Transfer[4 + 1] == cdr.Channel) : 1) &&
646 (cdr.Transfer[4 + 0] == cdr.File)) {
647 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
650 SPU_playADPCMchannel(&cdr.Xa);
653 else cdr.FirstSector = -1;
658 if (cdr.SetSector[2] == 75) {
659 cdr.SetSector[2] = 0;
661 if (cdr.SetSector[1] == 60) {
662 cdr.SetSector[1] = 0;
669 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & 0x2)) { // EOF
671 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
673 // AddIrqQueue(AUTOPAUSE, 0x1000);
674 AddIrqQueue(CdlPause, 0x1000);
677 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
679 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
684 bit 0 - 0 REG1 command send / 1 REG1 data read
685 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
689 bit 5 - 1 result ready
691 bit 7 - 1 command being processed
694 unsigned char cdrRead0(void) {
703 // cdr.Ctrl &= ~0x40;
705 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
709 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
712 return psxHu8(0x1800) = cdr.Ctrl;
717 0 - to send a command / 1 - to get the result
720 void cdrWrite0(unsigned char rt) {
722 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
724 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
733 unsigned char cdrRead1(void) {
734 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
735 psxHu8(0x1801) = cdr.Result[cdr.ResultP++];
736 if (cdr.ResultP == cdr.ResultC)
742 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
744 return psxHu8(0x1801);
747 void cdrWrite1(unsigned char rt) {
751 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
753 // psxHu8(0x1801) = rt;
758 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
760 SysPrintf(" Param[%d] = {", cdr.ParamC);
761 for (i = 0; i < cdr.ParamC; i++)
762 SysPrintf(" %x,", cdr.Param[i]);
769 if (cdr.Ctrl & 0x1) return;
775 AddIrqQueue(cdr.Cmd, 0x1000);
781 AddIrqQueue(cdr.Cmd, 0x1000);
787 for (i = 0; i < 3; i++)
788 cdr.SetSector[i] = btoi(cdr.Param[i]);
789 cdr.SetSector[3] = 0;
790 /* if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
791 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
795 AddIrqQueue(cdr.Cmd, 0x1000);
799 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
800 if (CDR_getTN(cdr.ResultTN) != -1) {
801 if (cdr.CurTrack > cdr.ResultTN[1])
802 cdr.CurTrack = cdr.ResultTN[1];
803 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
804 int tmp = cdr.ResultTD[2];
805 cdr.ResultTD[2] = cdr.ResultTD[0];
806 cdr.ResultTD[0] = tmp;
807 if (!Config.Cdda) CDR_play(cdr.ResultTD);
810 } else if (!Config.Cdda) {
811 CDR_play(cdr.SetSector);
816 AddIrqQueue(cdr.Cmd, 0x1000);
820 if (cdr.CurTrack < 0xaa)
824 AddIrqQueue(cdr.Cmd, 0x1000);
828 if (cdr.CurTrack > 1)
832 AddIrqQueue(cdr.Cmd, 0x1000);
840 StartReading(1, 0x1000);
848 AddIrqQueue(cdr.Cmd, 0x1000);
856 AddIrqQueue(cdr.Cmd, 0x1000);
864 AddIrqQueue(cdr.Cmd, 0x80000);
873 AddIrqQueue(cdr.Cmd, 0x1000);
880 AddIrqQueue(cdr.Cmd, 0x1000);
887 AddIrqQueue(cdr.Cmd, 0x1000);
891 cdr.File = cdr.Param[0];
892 cdr.Channel = cdr.Param[1];
895 AddIrqQueue(cdr.Cmd, 0x1000);
900 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
902 cdr.Mode = cdr.Param[0];
905 AddIrqQueue(cdr.Cmd, 0x1000);
911 AddIrqQueue(cdr.Cmd, 0x1000);
917 AddIrqQueue(cdr.Cmd, 0x1000);
923 AddIrqQueue(cdr.Cmd, 0x1000);
929 AddIrqQueue(cdr.Cmd, 0x1000);
935 AddIrqQueue(cdr.Cmd, 0x1000);
939 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
942 AddIrqQueue(cdr.Cmd, 0x1000);
946 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
949 AddIrqQueue(cdr.Cmd, 0x1000);
955 AddIrqQueue(cdr.Cmd, 0x1000);
961 AddIrqQueue(cdr.Cmd, 0x1000);
969 StartReading(2, 0x1000);
975 AddIrqQueue(cdr.Cmd, 0x1000);
980 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
984 if (cdr.Stat != NoIntr) {
985 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
989 unsigned char cdrRead2(void) {
992 if (cdr.Readed == 0) {
995 ret = *cdr.pTransfer++;
999 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1004 void cdrWrite2(unsigned char rt) {
1006 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1008 if (cdr.Ctrl & 0x1) {
1013 cdr.ResultReady = 1; //0;
1014 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1021 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
1022 cdr.Param[cdr.ParamP++] = rt;
1027 unsigned char cdrRead3(void) {
1030 psxHu8(0x1803) = cdr.Stat | 0xE0;
1032 psxHu8(0x1803) = 0xff;
1037 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1039 return psxHu8(0x1803);
1042 void cdrWrite3(unsigned char rt) {
1044 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1046 if (rt == 0x07 && cdr.Ctrl & 0x1) {
1049 if (cdr.Irq == 0xff) {
1054 CDR_INT(cdr.eCycle);
1055 if (cdr.Reading && !cdr.ResultReady)
1056 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1060 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1062 cdr.pTransfer = cdr.Transfer;
1064 switch (cdr.Mode & 0x30) {
1067 cdr.pTransfer += 12;
1075 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1080 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1086 if (cdr.Readed == 0) {
1088 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1093 cdsize = (bcr & 0xffff) * 4;
1095 ptr = (u8 *)PSXM(madr);
1098 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1102 memcpy(ptr, cdr.pTransfer, cdsize);
1103 psxCpu->Clear(madr, cdsize / 4);
1104 cdr.pTransfer += cdsize;
1108 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
1113 HW_DMA3_CHCR &= SWAP32(~0x01000000);
1118 memset(&cdr, 0, sizeof(cdr));
1124 int cdrFreeze(gzFile f, int Mode) {
1127 gzfreeze(&cdr, sizeof(cdr));
1130 tmp = cdr.pTransfer - cdr.Transfer;
1132 gzfreeze(&tmp, sizeof(tmp));
1135 cdr.pTransfer = cdr.Transfer + tmp;