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cdrom.c
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cdrom.c
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/***************************************************************************
* Copyright (C) 2007 Ryan Schultz, PCSX-df Team, 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
/*
* Handles all CD-ROM registers and functions.
*/
#include "cdrom.h"
/* CD-ROM magic numbers */
#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 // 0xa
#define CdlMute 11 // 0xb
#define CdlDemute 12 // 0xc
#define CdlSetfilter 13 // 0xd
#define CdlSetmode 14 // 0xe
#define CdlGetmode 15 // 0xf
#define CdlGetlocL 16 // 0x10
#define CdlGetlocP 17 // 0x11
#define CdlReadT 18 // 0x12
#define CdlGetTN 19 // 0x13
#define CdlGetTD 20 // 0x14
#define CdlSeekL 21 // 0x15
#define CdlSeekP 22 // 0x16
#define CdlSetclock 23 // 0x17
#define CdlGetclock 24 // 0x18
#define CdlTest 25 // 0x19
#define CdlID 26 // 0x1a
#define CdlReadS 27 // 0x1b
#define CdlReset 28 // 0x1c
#define CdlGetQ 29 // 0x1d
#define CdlReadToc 30 // 0x1e
#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", "CdlReadT", "CdlGetTN",
"CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
"CdlGetclock", "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 };
// cdr.Stat:
#define NoIntr 0
#define DataReady 1
#define Complete 2
#define Acknowledge 3
#define DataEnd 4
#define DiskError 5
// 1x = 75 sectors per second
// PSXCLK = 1 sec in the ps
// so (PSXCLK / 75) / BIAS = cdr read time (linuzappz)
#define 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 = FALSE; \
} \
}
#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("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
#endif
cdr.RErr = CDR_readTrack(cdr.Prev);
}
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;
// Reschedule IRQ
if (cdr.Stat) {
CDR_INT( cdr.eCycle );
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;
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.StatP |= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
cdr.StatP |= 0x80;
// 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, 0x1000);
cdr.Ctrl |= 0x80;
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, 0x1000);
// }
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] = 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;
// NOTE: This only works for TRACK 01
cdr.Result[2] = btoi(cdr.Prev[0]);
cdr.Result[3] = btoi(cdr.Prev[1]) - 2;
cdr.Result[4] = cdr.Prev[2];
// m:s adjustment
if ((s8)cdr.Result[3] < 0) {
cdr.Result[3] += 60;
cdr.Result[2] -= 1;
}
cdr.Result[2] = itob(cdr.Result[2]);
cdr.Result[3] = itob(cdr.Result[3]);
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.StatP |= 0x40;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlSeekL + 0x20, 0x1000);
break;
case CdlSeekL + 0x20:
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.StatP &= ~0x40;
cdr.Result[0] = cdr.StatP;
cdr.Seeked = TRUE;
cdr.Stat = Complete;
break;
case CdlSeekP:
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.StatP |= 0x40;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlSeekP + 0x20, 0x1000);
break;
case CdlSeekP + 0x20:
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.StatP &= ~0x40;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
cdr.Seeked = TRUE;
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, 0x1000);
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) {
// Music CD
cdr.Result[0] = 0x08; // 0x08 Audio CD
cdr.Result[1] = 0x10; // 0x10 Enter CD Player
cdr.Result[1] |= 0x80;
}
else {
// Data CD
cdr.Result[0] = 0x08;
cdr.Result[1] = 0x00; // 0x00 loads CD
}
}
cdr.Result[2] = 0x00;
cdr.Result[3] = 0x00;
// strncpy((char *)&cdr.Result[4], "PCSX", 4);
#ifdef HW_RVL
strncpy((char *)&cdr.Result[4], "WSX ", 4);
#else
strncpy((char *)&cdr.Result[4], "GCSX", 4);
#endif
cdr.Stat = Complete;
break;
case CdlReset:
SetResultSize(1);
cdr.StatP = 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlReadT:
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlReadT + 0x20, 0x1000);
break;
case CdlReadT + 0x20:
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlReadToc:
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlReadToc + 0x20, 0x1000);
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, 0x800);
break;
case READ_ACK:
if (!cdr.Reading) return;
SetResultSize(1);
cdr.StatP |= 0x2;
cdr.Result[0] = cdr.StatP;
if (cdr.Seeked == 0) {
cdr.Seeked = 1;
cdr.StatP |= 0x40;
}
cdr.StatP|= 0x20;
cdr.Stat = Acknowledge;
ReadTrack();
// CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
CDREAD_INT(0x40000);
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) {
psxHu32ref(0x1070) |= SWAP32((u32)0x4);
psxRegs.interrupt|= 0x80000000;
}
#ifdef CDR_LOG
CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
#endif
}
void cdrReadInterrupt() {
u8 *buf;
if (!cdr.Reading) return;
if (cdr.Stat) {
CDREAD_INT(0x800);
return;
}
#ifdef CDR_LOG
CDR_LOG("cdrReadInterrupt() Log: KEY END");
#endif
cdr.OCUP = 1;
SetResultSize(1);
cdr.StatP |= 0x22;
cdr.StatP &= ~0x40;
cdr.Result[0] = cdr.StatP;
buf = CDR_getBuffer();
if (buf == NULL) {
cdr.RErr = -1;
#ifdef CDR_LOG
fprintf(emuLog, "cdrReadInterrupt() Log: 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, "cdrReadInterrupt() Log: cdr.Transfer %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("cdrReadInterrupt() Log: Autopausing read\n");
#endif
// AddIrqQueue(AUTOPAUSE, 0x800);
AddIrqQueue(CdlPause, 0x800);
}
else {
ReadTrack();
CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
}
psxHu32ref(0x1070) |= SWAP32((u32)0x4);
psxRegs.interrupt|= 0x80000000;
}
/*
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("cdrRead0() 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("cdrWrite0() 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("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
#endif
return psxHu8(0x1801);
}
void cdrWrite1(unsigned char rt) {
int i;
#ifdef CDR_LOG
CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
#endif
//psxHu8(0x1801) = rt;
cdr.Cmd = rt;
cdr.OCUP = 0;
#ifdef CDRCMD_DEBUG
SysPrintf("cdrWrite1() Log: 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();
cdr.Seeked = 0;
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) {
*(u32 *)cdr.SetSector = *(u32 *)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("cdrWrite1() 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:
// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
cdr.Ctrl |= 0x80;
cdr.Stat = NoIntr;
AddIrqQueue(cdr.Cmd, 0x800);
break;
case CdlSeekP:
// ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)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("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
#endif
return;
}
if (cdr.Stat != NoIntr) {
psxHu32ref(0x1070)|= SWAP32((u32)0x4);
psxRegs.interrupt|= 0x80000000;
}
}
unsigned char cdrRead2(void) {
unsigned char ret;
if (cdr.Readed == 0) {
ret = 0;
} else {
ret = *cdr.pTransfer++;
}
#ifdef CDR_LOG
CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
#endif
return ret;
}
void cdrWrite2(unsigned char rt) {
#ifdef CDR_LOG
CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
#endif
if (cdr.Ctrl & 0x1) {
switch (rt) {
case 0x07:
cdr.ParamP = 0;
cdr.ParamC = 0;
cdr.ResultReady = 1; //0;
cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
break;
default:
cdr.Reg2 = rt;
break;
}