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pcsx2/CdRom.c

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/* Pcsx2 - Pc Ps2 Emulator
* Copyright (C) 2002-2003 Pcsx2 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
};
u8 Test04[] = { 0 };
u8 Test05[] = { 0 };
u8 Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
u8 Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
u8 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) PSX_INT(17, eCycle)
#define CDREAD_INT(eCycle) PSX_INT(18, eCycle)
#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; \
}
s32 MSFtoLSN(u8 *Time) {
u32 lsn;
lsn = Time[2];
lsn+=(Time[1] - 2) * 75;
lsn+= Time[0] * 75 * 60;
return lsn;
}
void LSNtoMSF(u8 *Time, s32 lsn) {
lsn += 150;
Time[2] = lsn / 4500; // minuten
lsn = lsn - Time[2] * 4500; // minuten rest
Time[1] = lsn / 75; // sekunden
Time[0] = lsn - Time[1] * 75; // sekunden rest
}
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 = CDVDreadTrack(MSFtoLSN(cdr.SetSector), CDVD_MODE_2352);
}
// cdr.Stat:
#define NoIntr 0
#define DataReady 1
#define Complete 2
#define Acknowledge 3
#define DataEnd 4
#define DiskError 5
void AddIrqQueue(u8 irq, unsigned long ecycle) {
cdr.Irq = irq;
if (cdr.Stat) {
cdr.eCycle = ecycle;
} else {
CDR_INT(ecycle);
}
}
int cdrInterrupt() {
cdvdTD trackInfo;
int i;
u8 Irq = cdr.Irq;
if (cdr.Stat) {
CDR_INT(0x800);
return 0;
}
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 (CDVDgetTN(&cdr.ResultTN) == -1) {
cdr.Stat = DiskError;
cdr.Result[0]|= 0x01;
} else {
cdr.Stat = Acknowledge;
cdr.Result[1] = itob(cdr.ResultTN.strack);
cdr.Result[2] = itob(cdr.ResultTN.etrack);
}
break;
case CdlGetTD:
cdr.CmdProcess = 0;
cdr.Track = btoi(cdr.Param[0]);
SetResultSize(4);
cdr.StatP|= 0x2;
if (CDVDgetTD(cdr.Track, &trackInfo) == -1) {
cdr.Stat = DiskError;
cdr.Result[0]|= 0x01;
} else {
LSNtoMSF(cdr.ResultTD, trackInfo.lsn);
cdr.Stat = Acknowledge;
cdr.Result[0] = cdr.StatP;
cdr.Result[1] = itob(cdr.ResultTD[0]);
cdr.Result[2] = itob(cdr.ResultTD[1]);
cdr.Result[3] = itob(cdr.ResultTD[2]);
}
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 1;
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 1;
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
return 1;
}
int cdrReadInterrupt() {
u8 *buf;
if (!cdr.Reading) return 1;
if (cdr.Stat) {
CDREAD_INT(0x800);
return 0;
}
#ifdef CDR_LOG
CDR_LOG("KEY END");
#endif
cdr.OCUP = 1;
SetResultSize(1);
cdr.StatP|= 0x22;
cdr.Result[0] = cdr.StatP;
SysMessage("Reading From CDR");
buf = CDVDgetBuffer();
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 0;
}
memcpy(cdr.Transfer, buf+12, 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;
return 0;
}
/*
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
*/
u8 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(u8 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;
}
}
u8 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(u8 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((u8)(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;
}
u8 cdrRead2(void) {
u8 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(u8 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++;
}
}
u8 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(u8 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);
}/* else if (cdr.Reading) {
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;
case 0x41000200:
//SysPrintf("unhandled cdrom dma3: madr: %x, bcr: %x, chcr %x\n", madr, bcr, chcr);
// size = 16 * 32 * 4 (one sector)
/* PSXMu8(madr+0) = 0x10;
PSXMu8(madr+1) = 0x00;
PSXMu8(madr+2) = 0x03;
PSXMu8(madr+3) = 0x00;*/
return;
default:
#ifdef CDR_LOG
CDR_LOG("Unknown cddma %lx\n", chcr);
#endif
break;
}
HW_DMA3_CHCR &= ~0x01000000;
psxDmaInterrupt(3);
}
void cdrReset() {
memset(&cdr, 0, sizeof(cdr));
cdr.CurTrack=1;
cdr.File=1; cdr.Channel=1;
cdReadTime = (PSXCLK / 1757) * BIAS;
//DVD is 4x (PSXCLK / 75) CD is 24x on the PS2, so that would mean CD = (PSXCLK / 450)
// 75/4 = 18.75 x 24 = 450 remember its faster than the PS1 ;) Refraction
// 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
}
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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