diff options
Diffstat (limited to 'PcsxSrc/CdRom.c')
| -rw-r--r-- | PcsxSrc/CdRom.c | 1049 |
1 files changed, 1049 insertions, 0 deletions
diff --git a/PcsxSrc/CdRom.c b/PcsxSrc/CdRom.c new file mode 100644 index 0000000..795cdce --- /dev/null +++ b/PcsxSrc/CdRom.c @@ -0,0 +1,1049 @@ +/* Pcsx - Pc Psx Emulator
+ * Copyright (C) 1999-2002 Pcsx Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+//THIS ALL IS FOR THE CDROM REGISTERS HANDLING
+#include "PsxCommon.h"
+
+#define CdlSync 0
+#define CdlNop 1
+#define CdlSetloc 2
+#define CdlPlay 3
+#define CdlForward 4
+#define CdlBackward 5
+#define CdlReadN 6
+#define CdlStandby 7
+#define CdlStop 8
+#define CdlPause 9
+#define CdlInit 10
+#define CdlMute 11
+#define CdlDemute 12
+#define CdlSetfilter 13
+#define CdlSetmode 14
+#define CdlGetmode 15
+#define CdlGetlocL 16
+#define CdlGetlocP 17
+#define Cdl18 18
+#define CdlGetTN 19
+#define CdlGetTD 20
+#define CdlSeekL 21
+#define CdlSeekP 22
+#define CdlTest 25
+#define CdlID 26
+#define CdlReadS 27
+#define CdlReset 28
+#define CdlReadToc 30
+
+#define AUTOPAUSE 249
+#define READ_ACK 250
+#define READ 251
+#define REPPLAY_ACK 252
+#define REPPLAY 253
+#define ASYNC 254
+/* don't set 255, it's reserved */
+
+char *CmdName[0x100]= {
+ "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
+ "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
+ "CdlStop", "CdlPause", "CdlInit", "CdlMute",
+ "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode",
+ "CdlGetlocL", "CdlGetlocP", "Cdl18", "CdlGetTN",
+ "CdlGetTD", "CdlSeekL", "CdlSeekP", NULL,
+ NULL, "CdlTest", "CdlID", "CdlReadS",
+ "CdlReset", NULL, "CDlReadToc", NULL
+};
+
+unsigned char Test04[] = { 0 };
+unsigned char Test05[] = { 0 };
+unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
+unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
+unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
+
+// 1x = 75 sectors per second
+// PSXCLK = 1 sec in the ps
+// so (PSXCLK / 75) / BIAS = cdr read time (linuzappz)
+//#define cdReadTime ((PSXCLK / 75) / BIAS)
+unsigned long cdReadTime = ((PSXCLK / 75) / BIAS);
+
+#define btoi(b) ((b)/16*10 + (b)%16) /* BCD to u_char */
+#define itob(i) ((i)/10*16 + (i)%10) /* u_char to BCD */
+
+static struct CdrStat stat;
+static struct SubQ *subq;
+
+#define CDR_INT(eCycle) { \
+ psxRegs.interrupt|= 0x4; \
+ psxRegs.intCycle[2+1] = eCycle; \
+ psxRegs.intCycle[2] = psxRegs.cycle; }
+
+#define CDREAD_INT(eCycle) { \
+ psxRegs.interrupt|= 0x40000; \
+ psxRegs.intCycle[2+16+1] = eCycle; \
+ psxRegs.intCycle[2+16] = psxRegs.cycle; }
+
+#define StartReading(type) { \
+ cdr.Reading = type; \
+ cdr.FirstSector = 1; \
+ cdr.Readed = 0xff; \
+ AddIrqQueue(READ_ACK, 0x800); \
+}
+
+#define StopReading() { \
+ if (cdr.Reading) { \
+ cdr.Reading = 0; \
+ psxRegs.interrupt&=~0x40000; \
+ } \
+}
+
+#define StopCdda() { \
+ if (cdr.Play) { \
+ if (!Config.Cdda) CDR_stop(); \
+ cdr.StatP&=~0x80; \
+ cdr.Play = 0; \
+ } \
+}
+
+#define SetResultSize(size) { \
+ cdr.ResultP = 0; \
+ cdr.ResultC = size; \
+ cdr.ResultReady = 1; \
+}
+
+void ReadTrack() {
+
+ cdr.Prev[0] = itob(cdr.SetSector[0]);
+ cdr.Prev[1] = itob(cdr.SetSector[1]);
+ cdr.Prev[2] = itob(cdr.SetSector[2]);
+
+#ifdef CDR_LOG
+ CDR_LOG("KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
+#endif
+ cdr.RErr = CDR_readTrack(cdr.Prev);
+}
+
+// cdr.Stat:
+#define NoIntr 0
+#define DataReady 1
+#define Complete 2
+#define Acknowledge 3
+#define DataEnd 4
+#define DiskError 5
+
+void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
+ cdr.Irq = irq;
+ if (cdr.Stat) {
+ cdr.eCycle = ecycle;
+ } else {
+ CDR_INT(ecycle);
+ }
+}
+
+void cdrInterrupt() {
+ int i;
+ unsigned char Irq = cdr.Irq;
+
+ if (cdr.Stat) {
+ CDR_INT(0x800);
+ return;
+ }
+
+ cdr.Irq = 0xff;
+ cdr.Ctrl&=~0x80;
+
+ switch (Irq) {
+ case CdlSync:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlNop:
+ SetResultSize(1);
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ i = stat.Status;
+ if (CDR_getStatus(&stat) != -1) {
+ if (stat.Type == 0xff) cdr.Stat = DiskError;
+ if (stat.Status & 0x10) {
+ cdr.Stat = DiskError;
+ cdr.Result[0]|= 0x11;
+ cdr.Result[0]&=~0x02;
+ }
+ else if (i & 0x10) {
+ cdr.StatP |= 0x2;
+ cdr.Result[0]|= 0x2;
+ CheckCdrom();
+ }
+ }
+ break;
+
+ case CdlSetloc:
+ cdr.CmdProcess = 0;
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlPlay:
+ cdr.CmdProcess = 0;
+ SetResultSize(1);
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ cdr.StatP|= 0x82;
+// if ((cdr.Mode & 0x5) == 0x5) AddIrqQueue(REPPLAY, cdReadTime);
+ break;
+
+ case CdlForward:
+ cdr.CmdProcess = 0;
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case CdlBackward:
+ cdr.CmdProcess = 0;
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case CdlStandby:
+ cdr.CmdProcess = 0;
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case CdlStop:
+ cdr.CmdProcess = 0;
+ SetResultSize(1);
+ cdr.StatP&=~0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+// cdr.Stat = Acknowledge;
+ break;
+
+ case CdlPause:
+ SetResultSize(1);
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ AddIrqQueue(CdlPause + 0x20, 0x800);
+ break;
+
+ case CdlPause + 0x20:
+ SetResultSize(1);
+ cdr.StatP&=~0x20;
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case CdlInit:
+ SetResultSize(1);
+ cdr.StatP = 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+// if (!cdr.Init) {
+ AddIrqQueue(CdlInit + 0x20, 0x800);
+// }
+ break;
+
+ case CdlInit + 0x20:
+ SetResultSize(1);
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ cdr.Init = 1;
+ break;
+
+ case CdlMute:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlDemute:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlSetfilter:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlSetmode:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlGetmode:
+ SetResultSize(6);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Result[1] = cdr.Mode;
+ cdr.Result[2] = cdr.File;
+ cdr.Result[3] = cdr.Channel;
+ cdr.Result[4] = 0;
+ cdr.Result[5] = 0;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlGetlocL:
+ SetResultSize(8);
+// for (i=0; i<8; i++) cdr.Result[i] = itob(cdr.Transfer[i]);
+ for (i=0; i<8; i++) cdr.Result[i] = cdr.Transfer[i];
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlGetlocP:
+ SetResultSize(8);
+ subq = (struct SubQ*) CDR_getBufferSub();
+ if (subq != NULL) {
+ cdr.Result[0] = subq->TrackNumber;
+ cdr.Result[1] = subq->IndexNumber;
+ memcpy(cdr.Result+2, subq->TrackRelativeAddress, 3);
+ memcpy(cdr.Result+5, subq->AbsoluteAddress, 3);
+ } else {
+ cdr.Result[0] = 1;
+ cdr.Result[1] = 1;
+ cdr.Result[2] = cdr.Prev[0];
+ cdr.Result[3] = itob((btoi(cdr.Prev[1])) - 2);
+ cdr.Result[4] = cdr.Prev[2];
+ memcpy(cdr.Result+5, cdr.Prev, 3);
+ }
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlGetTN:
+ cdr.CmdProcess = 0;
+ SetResultSize(3);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ if (CDR_getTN(cdr.ResultTN) == -1) {
+ cdr.Stat = DiskError;
+ cdr.Result[0]|= 0x01;
+ } else {
+ cdr.Stat = Acknowledge;
+ cdr.Result[1] = itob(cdr.ResultTN[0]);
+ cdr.Result[2] = itob(cdr.ResultTN[1]);
+ }
+ break;
+
+ case CdlGetTD:
+ cdr.CmdProcess = 0;
+ cdr.Track = btoi(cdr.Param[0]);
+ SetResultSize(4);
+ cdr.StatP|= 0x2;
+ if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
+ cdr.Stat = DiskError;
+ cdr.Result[0]|= 0x01;
+ } else {
+ cdr.Stat = Acknowledge;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Result[1] = itob(cdr.ResultTD[2]);
+ cdr.Result[2] = itob(cdr.ResultTD[1]);
+ cdr.Result[3] = itob(cdr.ResultTD[0]);
+ }
+ break;
+
+ case CdlSeekL:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ AddIrqQueue(CdlSeekL + 0x20, 0x800);
+ break;
+
+ case CdlSeekL + 0x20:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case CdlSeekP:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ AddIrqQueue(CdlSeekP + 0x20, 0x800);
+ break;
+
+ case CdlSeekP + 0x20:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case CdlTest:
+ cdr.Stat = Acknowledge;
+ switch (cdr.Param[0]) {
+ case 0x20: // System Controller ROM Version
+ SetResultSize(4);
+ memcpy(cdr.Result, Test20, 4);
+ break;
+ case 0x22:
+ SetResultSize(8);
+ memcpy(cdr.Result, Test22, 4);
+ break;
+ case 0x23: case 0x24:
+ SetResultSize(8);
+ memcpy(cdr.Result, Test23, 4);
+ break;
+ }
+ break;
+
+ case CdlID:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ AddIrqQueue(CdlID + 0x20, 0x800);
+ break;
+
+ case CdlID + 0x20:
+ SetResultSize(8);
+ if (CDR_getStatus(&stat) == -1) {
+ cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
+ cdr.Result[1] = 0x00; // 0x80 leads to the menu in the bios, else loads CD
+ }
+ else {
+ if (stat.Type == 2) {
+ cdr.Result[0] = 0x08;
+ cdr.Result[1] = 0x10;
+ }
+ else {
+ cdr.Result[0] = 0x00;
+ cdr.Result[1] = 0x00;
+ }
+ }
+ if (!LoadCdBios) cdr.Result[1] |= 0x80;
+
+ cdr.Result[2] = 0x00;
+ cdr.Result[3] = 0x00;
+ strncpy((char *)&cdr.Result[4], "PCSX", 4);
+ cdr.Stat = Complete;
+ break;
+
+ case CdlReset:
+ SetResultSize(1);
+ cdr.StatP = 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ break;
+
+ case CdlReadToc:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+ AddIrqQueue(CdlReadToc + 0x20, 0x800);
+ break;
+
+ case CdlReadToc + 0x20:
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+ break;
+
+ case AUTOPAUSE:
+ cdr.OCUP = 0;
+/* SetResultSize(1);
+ StopCdda();
+ StopReading();
+ cdr.OCUP = 0;
+ cdr.StatP&=~0x20;
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = DataEnd;
+*/ AddIrqQueue(CdlPause, 0x400);
+ break;
+
+ case READ_ACK:
+ if (!cdr.Reading) return;
+
+ SetResultSize(1);
+ cdr.StatP|= 0x2;
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Acknowledge;
+
+ ReadTrack();
+
+ CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
+
+ break;
+
+ case REPPLAY_ACK:
+ cdr.Stat = Acknowledge;
+ cdr.Result[0] = cdr.StatP;
+ SetResultSize(1);
+ AddIrqQueue(REPPLAY, cdReadTime);
+ break;
+
+ case REPPLAY:
+ if ((cdr.Mode & 5) != 5) break;
+/* if (CDR_getStatus(&stat) == -1) {
+ cdr.Result[0] = 0;
+ cdr.Result[1] = 0;
+ cdr.Result[2] = 0;
+ cdr.Result[3] = 0;
+ cdr.Result[4] = 0;
+ cdr.Result[5] = 0;
+ cdr.Result[6] = 0;
+ cdr.Result[7] = 0;
+ } else memcpy(cdr.Result, &stat.Track, 8);
+ cdr.Stat = 1;
+ SetResultSize(8);
+ AddIrqQueue(REPPLAY_ACK, cdReadTime);
+*/ break;
+
+ case 0xff:
+ return;
+
+ default:
+ cdr.Stat = Complete;
+ break;
+ }
+
+ if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) psxHu32(0x1070)|=0x4;
+
+#ifdef CDR_LOG
+ CDR_LOG("Cdr Interrupt %x\n", Irq);
+#endif
+}
+
+void cdrReadInterrupt() {
+ unsigned char *buf;
+
+ if (!cdr.Reading) return;
+
+ if (cdr.Stat) {
+ CDREAD_INT(0x800);
+ return;
+ }
+
+#ifdef CDR_LOG
+ CDR_LOG("KEY END");
+#endif
+
+ cdr.OCUP = 1;
+ SetResultSize(1);
+ cdr.StatP|= 0x22;
+ cdr.Result[0] = cdr.StatP;
+
+ buf = CDR_getBuffer();
+ if (buf == NULL) cdr.RErr = -1;
+
+ if (cdr.RErr == -1) {
+#ifdef CDR_LOG
+ fprintf(emuLog, " err\n");
+#endif
+ memset(cdr.Transfer, 0, 2340);
+ cdr.Stat = DiskError;
+ cdr.Result[0]|= 0x01;
+ ReadTrack();
+ CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
+ return;
+ }
+
+ memcpy(cdr.Transfer, buf, 2340);
+ cdr.Stat = DataReady;
+
+#ifdef CDR_LOG
+ fprintf(emuLog, " %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
+#endif
+
+ if ((cdr.Muted == 1) && (cdr.Mode & 0x40) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
+ if ((cdr.Transfer[4+2] & 0x4) &&
+ ((cdr.Mode&0x8) ? (cdr.Transfer[4+1] == cdr.Channel) : 1) &&
+ (cdr.Transfer[4+0] == cdr.File)) {
+ int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
+
+ if (!ret) {
+ SPU_playADPCMchannel(&cdr.Xa);
+ cdr.FirstSector = 0;
+ }
+ else cdr.FirstSector = -1;
+ }
+ }
+
+ cdr.SetSector[2]++;
+ if (cdr.SetSector[2] == 75) {
+ cdr.SetSector[2] = 0;
+ cdr.SetSector[1]++;
+ if (cdr.SetSector[1] == 60) {
+ cdr.SetSector[1] = 0;
+ cdr.SetSector[0]++;
+ }
+ }
+
+ cdr.Readed = 0;
+
+ if ((cdr.Transfer[4+2] & 0x80) && (cdr.Mode & 0x2)) { // EOF
+#ifdef CDR_LOG
+ CDR_LOG("AutoPausing Read\n");
+#endif
+// AddIrqQueue(AUTOPAUSE, 0x800);
+ AddIrqQueue(CdlPause, 0x800);
+ }
+ else {
+ ReadTrack();
+ CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
+ }
+ psxHu32(0x1070)|=0x4;
+}
+
+/*
+cdrRead0:
+ bit 0 - 0 REG1 command send / 1 REG1 data read
+ bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
+ bit 2 - unknown
+ bit 3 - unknown
+ bit 4 - unknown
+ bit 5 - 1 result ready
+ bit 6 - 1 dma ready
+ bit 7 - 1 command being processed
+*/
+
+unsigned char cdrRead0(void) {
+ if (cdr.ResultReady) cdr.Ctrl|= 0x20;
+ else cdr.Ctrl&=~0x20;
+
+ if (cdr.OCUP) cdr.Ctrl|= 0x40;
+ else cdr.Ctrl&=~0x40;
+
+ // what means the 0x10 and the 0x08 bits? i only saw it used by the bios
+ cdr.Ctrl|=0x18;
+
+#ifdef CDR_LOG
+ CDR_LOG("CD0 Read: %x\n", cdr.Ctrl);
+#endif
+ return psxHu8(0x1800) = cdr.Ctrl;
+}
+
+/*
+cdrWrite0:
+ 0 - to send a command / 1 - to get the result
+*/
+
+void cdrWrite0(unsigned char rt) {
+#ifdef CDR_LOG
+ CDR_LOG("CD0 write: %x\n", rt);
+#endif
+ cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
+
+ if (rt == 0) {
+ cdr.ParamP = 0;
+ cdr.ParamC = 0;
+ cdr.ResultReady = 0;
+ }
+}
+
+unsigned char cdrRead1(void) {
+ if (cdr.ResultReady && cdr.Ctrl & 0x1) {
+ psxHu8(0x1801) = cdr.Result[cdr.ResultP++];
+ if (cdr.ResultP == cdr.ResultC) cdr.ResultReady = 0;
+ } else psxHu8(0x1801) = 0;
+#ifdef CDR_LOG
+ CDR_LOG("CD1 Read: %x\n", psxHu8(0x1801));
+#endif
+ return psxHu8(0x1801);
+}
+
+void cdrWrite1(unsigned char rt) {
+ int i;
+
+#ifdef CDR_LOG
+ CDR_LOG("CD1 write: %x (%s)\n", rt, CmdName[rt]);
+#endif
+// psxHu8(0x1801) = rt;
+ cdr.Cmd = rt;
+ cdr.OCUP = 0;
+
+#ifdef CDRCMD_DEBUG
+ SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
+ if (cdr.ParamC) {
+ SysPrintf(" Param[%d] = {", cdr.ParamC);
+ for (i=0;i<cdr.ParamC;i++) SysPrintf(" %x,", cdr.Param[i]);
+ SysPrintf("}\n");
+ } else SysPrintf("\n");
+#endif
+
+ if (cdr.Ctrl & 0x1) return;
+
+ switch(cdr.Cmd) {
+ case CdlSync:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlNop:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlSetloc:
+ StopReading();
+ for (i=0; i<3; i++) cdr.SetSector[i] = btoi(cdr.Param[i]);
+ cdr.SetSector[3] = 0;
+ if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
+ *(unsigned long *)cdr.SetSector = *(unsigned long *)cdr.SetSectorSeek;
+ }
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlPlay:
+ if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
+ if (CDR_getTN(cdr.ResultTN) != -1) {
+ if (cdr.CurTrack > cdr.ResultTN[1]) cdr.CurTrack = cdr.ResultTN[1];
+ if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
+ int tmp = cdr.ResultTD[2];
+ cdr.ResultTD[2] = cdr.ResultTD[0];
+ cdr.ResultTD[0] = tmp;
+ if (!Config.Cdda) CDR_play(cdr.ResultTD);
+ }
+ }
+ }
+ else if (!Config.Cdda) CDR_play(cdr.SetSector);
+ cdr.Play = 1;
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlForward:
+ if (cdr.CurTrack < 0xaa) cdr.CurTrack++;
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlBackward:
+ if (cdr.CurTrack > 1) cdr.CurTrack--;
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlReadN:
+ cdr.Irq = 0;
+ StopReading();
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ StartReading(1);
+ break;
+
+ case CdlStandby:
+ StopCdda();
+ StopReading();
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlStop:
+ StopCdda();
+ StopReading();
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlPause:
+ StopCdda();
+ StopReading();
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x40000);
+ break;
+
+ case CdlReset:
+ case CdlInit:
+ StopCdda();
+ StopReading();
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlMute:
+ cdr.Muted = 0;
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlDemute:
+ cdr.Muted = 1;
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlSetfilter:
+ cdr.File = cdr.Param[0];
+ cdr.Channel = cdr.Param[1];
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlSetmode:
+#ifdef CDR_LOG
+ CDR_LOG("Setmode %x\n", cdr.Param[0]);
+#endif
+ cdr.Mode = cdr.Param[0];
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlGetmode:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlGetlocL:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlGetlocP:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlGetTN:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlGetTD:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlSeekL:
+ ((unsigned long *)cdr.SetSectorSeek)[0] = ((unsigned long *)cdr.SetSector)[0];
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlSeekP:
+ ((unsigned long *)cdr.SetSectorSeek)[0] = ((unsigned long *)cdr.SetSector)[0];
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlTest:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlID:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ case CdlReadS:
+ cdr.Irq = 0;
+ StopReading();
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ StartReading(2);
+ break;
+
+ case CdlReadToc:
+ cdr.Ctrl|= 0x80;
+ cdr.Stat = NoIntr;
+ AddIrqQueue(cdr.Cmd, 0x800);
+ break;
+
+ default:
+#ifdef CDR_LOG
+ CDR_LOG("Unknown Cmd: %x\n", cdr.Cmd);
+#endif
+ return;
+ }
+ if (cdr.Stat != NoIntr) psxHu32(0x1070)|=0x4;
+}
+
+unsigned char cdrRead2(void) {
+ unsigned char ret;
+
+ if (cdr.Readed == 0) {
+ ret = 0;
+ } else {
+ ret = *cdr.pTransfer++;
+ }
+
+#ifdef CDR_LOG
+ CDR_LOG("CD2 Read: %x\n", ret);
+#endif
+ return ret;
+}
+
+void cdrWrite2(unsigned char rt) {
+#ifdef CDR_LOG
+ CDR_LOG("CD2 write: %x\n", rt);
+#endif
+ if (cdr.Ctrl & 0x1) {
+ switch (rt) {
+ case 0x07:
+ cdr.ParamP = 0;
+ cdr.ParamC = 0;
+ cdr.ResultReady = 0;
+ cdr.Ctrl = 0;
+ break;
+
+ default:
+ cdr.Reg2 = rt;
+ break;
+ }
+ } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
+ cdr.Param[cdr.ParamP++] = rt;
+ cdr.ParamC++;
+ }
+}
+
+unsigned char cdrRead3(void) {
+ if (cdr.Stat) {
+ if (cdr.Ctrl & 0x1) psxHu8(0x1803) = cdr.Stat | 0xE0;
+ else psxHu8(0x1803) = 0xff;
+ } else psxHu8(0x1803) = 0;
+#ifdef CDR_LOG
+ CDR_LOG("CD3 Read: %x\n", psxHu8(0x1803));
+#endif
+ return psxHu8(0x1803);
+}
+
+void cdrWrite3(unsigned char rt) {
+#ifdef CDR_LOG
+ CDR_LOG("CD3 write: %x\n", rt);
+#endif
+ if (rt == 0x07 && cdr.Ctrl & 0x1) {
+ cdr.Stat = 0;
+
+ if (cdr.Irq == 0xff) { cdr.Irq = 0; return; }
+ if (cdr.Irq) CDR_INT(cdr.eCycle);
+ if (cdr.Reading && !cdr.ResultReady)
+ CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
+
+ return;
+ }
+ if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
+ cdr.Readed = 1;
+ cdr.pTransfer = cdr.Transfer;
+
+ switch (cdr.Mode&0x30) {
+ case 0x10:
+ case 0x00: cdr.pTransfer+=12; break;
+ default: break;
+ }
+ }
+}
+
+void psxDma3(u32 madr, u32 bcr, u32 chcr) {
+ u32 cdsize;
+
+#ifdef CDR_LOG
+ CDR_LOG("*** DMA 3 *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
+#endif
+
+ switch (chcr) {
+ case 0x11000000:
+ case 0x11400100:
+ if (cdr.Readed == 0) {
+#ifdef CDR_LOG
+ CDR_LOG("*** DMA 3 *** NOT READY\n");
+#endif
+ return;
+ }
+
+ cdsize = (bcr & 0xffff) * 4;
+
+ memcpy((u8*)PSXM(madr), cdr.pTransfer, cdsize);
+ psxCpu->Clear(madr, cdsize/4);
+ cdr.pTransfer+=cdsize;
+
+ break;
+ default:
+#ifdef CDR_LOG
+ CDR_LOG("Unknown cddma %lx\n", chcr);
+#endif
+ break;
+ }
+}
+
+void cdrReset() {
+ memset(&cdr, 0, sizeof(cdr));
+ cdr.CurTrack=1;
+ cdr.File=1; cdr.Channel=1;
+ // with the timing set to 60 Gran Turismo works
+ // anybody knows why it doesn't with 75?
+ // 75 is the correct cdrom timing
+ if (Config.CdTiming)
+ cdReadTime = (PSXCLK / 60) / BIAS;
+ // this seems to be the most compatible
+ // let's leave like this until we know why
+ // 75 is buggy with some games
+ else cdReadTime = (PSXCLK / 65) / BIAS;
+// else cdReadTime = (PSXCLK / 75) / BIAS;
+}
+
+int cdrFreeze(gzFile f, int Mode) {
+ int tmp;
+
+ gzfreeze(&cdr, sizeof(cdr));
+
+ if (Mode == 1) tmp = cdr.pTransfer - cdr.Transfer;
+ gzfreezel(&tmp);
+ if (Mode == 0) cdr.pTransfer = cdr.Transfer + tmp;
+
+ return 0;
+}
+
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