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-rw-r--r--PcsxSrc/CdRom.c2098
1 files changed, 1049 insertions, 1049 deletions
diff --git a/PcsxSrc/CdRom.c b/PcsxSrc/CdRom.c
index 795cdce..303548c 100644
--- a/PcsxSrc/CdRom.c
+++ b/PcsxSrc/CdRom.c
@@ -1,1049 +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;
-}
-
+/* 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;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-23 17:19:40 +0000