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pcsx2/plugins/CDVDpeops/Cdr.c

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/***************************************************************************
cdr.c - description
-------------------
begin : Sun Nov 16 2003
copyright : (C) 2003 by Pete Bernert
email : BlackDove@addcom.de
***************************************************************************/
/***************************************************************************
* *
* 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. See also the license.txt file for *
* additional informations. *
* *
***************************************************************************/
//*************************************************************************//
// History of changes:
//
// 2004/12/25 - Pete
// - added an hack in CDVDgetTD for big dvds
//
// 2003/11/16 - Pete
// - generic cleanup for the Peops cdvd release
//
//*************************************************************************//
/////////////////////////////////////////////////////////
#include "stdafx.h"
#include <time.h>
#include "resource.h"
#define _IN_CDR
#include "externals.h"
#define CDVDdefs
#include "PS2Etypes.h"
#include "PS2Edefs.h"
#include "libiso.h"
#ifdef DBGOUT
#define SMALLDEBUG 1
#include <dbgout.h>
#endif
/////////////////////////////////////////////////////////
// PCSX2 CDVD interface:
EXPORT_GCC char * CALLBACK PS2EgetLibName();
EXPORT_GCC unsigned long CALLBACK PS2EgetLibType();
EXPORT_GCC unsigned long CALLBACK PS2EgetLibVersion2(unsigned long type);
EXPORT_GCC long CALLBACK CDVDinit();
EXPORT_GCC void CALLBACK CDVDshutdown();
EXPORT_GCC long CALLBACK CDVDopen(const char* pTitle);
EXPORT_GCC void CALLBACK CDVDclose();
EXPORT_GCC long CALLBACK CDVDtest();
EXPORT_GCC long CALLBACK CDVDreadTrack(unsigned long lsn, int mode);
EXPORT_GCC unsigned char * CALLBACK CDVDgetBuffer();
EXPORT_GCC long CALLBACK CDVDgetTN(cdvdTN *Buffer);
EXPORT_GCC long CALLBACK CDVDgetTD(unsigned char track, cdvdTD *Buffer);
EXPORT_GCC long CALLBACK CDVDgetDiskType();
EXPORT_GCC long CALLBACK CDVDgetTrayStatus();
/////////////////////////////////////////////////////////
const unsigned char version = PS2E_CDVD_VERSION;
const unsigned char revision = 1;
const unsigned char build = 3;
#ifdef _DEBUG
char *libraryName = "P.E.Op.S. CDVD (Debug, CDDA mod)";
#else
char *libraryName = "P.E.Op.S. CDVD (CDDA mod)";
#endif
/////////////////////////////////////////////////////////
BOOL bIsOpen=FALSE; // flag: open called once
BOOL bCDDAPlay=FALSE; // flag: audio is playing
int iCDROK=0; // !=0: cd is ok
int iCDType=CDVD_TYPE_UNKNOWN; // CD/DVD
int iCheckTrayStatus=0; // if 0 : report tray as closed, else try a real check
void *fdump;
/////////////////////////////////////////////////////////
// usual info funcs
EXPORT_GCC char * CALLBACK PS2EgetLibName()
{
return libraryName;
}
EXPORT_GCC unsigned long CALLBACK PS2EgetLibType()
{
return PS2E_LT_CDVD;
}
EXPORT_GCC unsigned long CALLBACK PS2EgetLibVersion2(unsigned long type)
{
return version<<16|revision<<8|build;
}
/*
EXPORT_GCC unsigned long CALLBACK PS2EgetCpuPlatform(void)
{
return PS2E_X86;
// return PS2E_X86_64;
}*/
s32 msf_to_lba(u8 m, u8 s, u8 f) {
u32 lsn;
lsn = f;
lsn+=(s - 2) * 75;
lsn+= m * 75 * 60;
return lsn;
}
void lba_to_msf(s32 lba, u8* m, u8* s, u8* f) {
lba += 150;
*m = (u8)(lba / (60*75));
*s = (u8)((lba / 75) % 60);
*f = (u8)(lba % 75);
}
/////////////////////////////////////////////////////////
// init: called once at library load
EXPORT_GCC long CALLBACK CDVDinit()
{
szSUBF[0]=0; // just init the filename buffers
szPPF[0] =0;
return 0;
}
/////////////////////////////////////////////////////////
// shutdown: called once at final exit
EXPORT_GCC void CALLBACK CDVDshutdown()
{
}
/////////////////////////////////////////////////////////
// open: called, when games starts/cd has been changed
int CheckDiskType(int baseType);
EXPORT_GCC long CALLBACK CDVDopen(const char* pTitle)
{
int i,audioTracks,dataTracks;
cdvdTD T;
if(bIsOpen) // double-open check (if the main emu coder doesn't know what he is doing ;)
{
if(iCDROK<=0) return -1;
else return 0;
}
bIsOpen=TRUE; // ok, open func called once
ReadConfig(); // read user config
BuildPPFCache(); // build ppf cache
BuildSUBCache(); // build sub cache
CreateREADBufs(); // setup generic read buffers
CreateGenEvent(); // create read event
iCDROK=OpenGenCD(iCD_AD,iCD_TA,iCD_LU); // generic open, setup read func
if(iCDROK<=0) {iCDROK=0;return -1;}
ReadTOC(); // read the toc
SetGenCDSpeed(0); // try to change the reading speed (if wanted)
iCDType=CDVD_TYPE_UNKNOWN; // let's look after the disc type
// (funny stuff taken from Xobro's/Florin's bin plugin)
if(CDVDreadTrack(16,CDVD_MODE_2048)==0)
{
struct cdVolDesc *volDesc;
volDesc=(struct cdVolDesc *)CDVDgetBuffer();
if(volDesc)
{
//todo: CDVD_TYPE_CDDA
if(volDesc->rootToc.tocSize==2048)
iCDType = CDVD_TYPE_DETCTCD;
else iCDType = CDVD_TYPE_DETCTDVDS;
}
}
fprintf(stderr," * CDVD Disk Open: %d tracks (%d to %d):\n",sTOC.cLastTrack-sTOC.cFirstTrack+1,sTOC.cFirstTrack,sTOC.cLastTrack);
audioTracks=dataTracks=0;
for(i=sTOC.cFirstTrack;i<=sTOC.cLastTrack;i++)
{
CDVDgetTD(i,&T);
if(T.type==CDVD_AUDIO_TRACK) {
audioTracks++;
fprintf(stderr," * * Track %d: Audio (%d sectors)\n",i,T.lsn);
}
else {
dataTracks++;
fprintf(stderr," * * Track %d: Data (Mode %d) (%d sectors)\n",i,((T.type==CDVD_MODE1_TRACK)?1:2),T.lsn);
}
}
if((dataTracks==0)&&(audioTracks>0))
iCDType=CDVD_TYPE_CDDA;
else if(dataTracks>0)
iCDType=CheckDiskType(iCDType);
if((iCDType==CDVD_TYPE_ILLEGAL)&&(audioTracks>0))
iCDType=CDVD_TYPE_CDDA;
else if((iCDType==CDVD_TYPE_PS2CD)&&(audioTracks>0))
iCDType=CDVD_TYPE_PS2CDDA;
else if((iCDType==CDVD_TYPE_PSCD)&&(audioTracks>0))
iCDType=CDVD_TYPE_PSCDDA;
switch(iCDType) {
case CDVD_TYPE_ILLEGAL: // Illegal Disc
fprintf(stderr," * Disk Type: Illegal Disk.\n");break;
case CDVD_TYPE_DVDV: // DVD Video
fprintf(stderr," * Disk Type: DVD Video.\n");break;
case CDVD_TYPE_CDDA: // Audio CD
fprintf(stderr," * Disk Type: CDDA.\n");break;
case CDVD_TYPE_PS2DVD: // PS2 DVD
fprintf(stderr," * Disk Type: PS2 DVD.\n");break;
case CDVD_TYPE_PS2CDDA: // PS2 CD (with audio)
fprintf(stderr," * Disk Type: PS2 CD+Audio.\n");break;
case CDVD_TYPE_PS2CD: // PS2 CD
fprintf(stderr," * Disk Type: PS2 CD.\n");break;
case CDVD_TYPE_PSCDDA: // PS CD (with audio)
fprintf(stderr," * Disk Type: PS1 CD+Audio.\n");break;
case CDVD_TYPE_PSCD: // PS CD
fprintf(stderr," * Disk Type: PS1 CD.\n");break;
case CDVD_TYPE_UNKNOWN: // Unknown
fprintf(stderr," * Disk Type: Unknown.\n");break;
case CDVD_TYPE_NODISC: // No Disc
fprintf(stderr," * Disk Type: No Disc.\n");break;
}
/* if (iBlockDump)*/ {
// fdump = isoCreate("block.dump", ISOFLAGS_BLOCKDUMP);
fdump = NULL;
if (fdump) {
cdvdTD buf;
CDVDgetTD(0, &buf);
isoSetFormat(fdump, 0, 2352, buf.lsn);
}
} /*else {
fdump = NULL;
}*/
return 0; // ok, done
}
/////////////////////////////////////////////////////////
// close: called when emulation stops
EXPORT_GCC void CALLBACK CDVDclose()
{
if(!bIsOpen) return; // no open? no close...
if (fdump != NULL) {
isoClose(fdump);
}
bIsOpen=FALSE; // no more open
LockGenCDAccess(); // make sure that no more reading is happening
if(iCDROK) // cd was ok?
{
if(bCDDAPlay) {DoCDDAPlay(0);bCDDAPlay=FALSE;} // -> cdda playing? stop it
SetGenCDSpeed(1); // -> repair speed
CloseGenCD(); // -> cd not used anymore
}
UnlockGenCDAccess();
FreeREADBufs(); // free read bufs
FreeGenEvent(); // free event
FreePPFCache(); // free ppf cache
FreeSUBCache(); // free sub cache
}
/////////////////////////////////////////////////////////
// test: ah, well, always fine
EXPORT_GCC long CALLBACK CDVDtest()
{
return 0;
}
/////////////////////////////////////////////////////////
// readSubQ: read subq from disc (only cds have subq data)
EXPORT_GCC long CALLBACK CDVDreadSubQ(u32 lsn, cdvdSubQ* subq)
{
u8 min, sec, frm;
if(!bIsOpen) CDVDopen("DVD"); // usual checks
if(!iCDROK) return -1;
// fake it
subq->ctrl = 4;
subq->mode = 1;
subq->trackNum = itob(1);
subq->trackIndex= itob(1);
lba_to_msf(lsn, &min, &sec, &frm);
subq->trackM = itob(min);
subq->trackS = itob(sec);
subq->trackF = itob(frm);
subq->pad = 0;
lba_to_msf(lsn + (2*75), &min, &sec, &frm);
subq->discM = itob(min);
subq->discS = itob(sec);
subq->discF = itob(frm);
return 0;
}
/////////////////////////////////////////////////////////
// gettoc: ps2 style TOC
static int layer1start = -1;
EXPORT_GCC long CALLBACK CDVDgetTOC(void* toc)
{
u32 type;
u8* tocBuff = (u8*)toc;
if(!bIsOpen) CDVDopen("DVD"); // not open? funny emu...
if(!iCDROK) return -1; // cd not ok?
type = CDVDgetDiskType();
if( type == CDVD_TYPE_DVDV ||
type == CDVD_TYPE_PS2DVD)
{
u32 lastaddr;
// get dvd structure format
// scsi command 0x43
memset(tocBuff, 0, 2048);
lastaddr = GetLastTrack1Addr();
if(layer1start > 0 || (layer1start != -2 && lastaddr > 0x280000) ) {
int off = 0;
FRAMEBUF* f = (FRAMEBUF*)malloc(sizeof(FRAMEBUF));
f->dwBufLen = iUsedBlockSize;
f->dwFrameCnt = 1;
// dual sided
tocBuff[ 0] = 0x24;
tocBuff[ 1] = 0x02;
tocBuff[ 2] = 0xF2;
tocBuff[ 3] = 0x00;
tocBuff[ 4] = 0x41;
tocBuff[ 5] = 0x95;
tocBuff[14] = 0x60; // dual sided, ptp
tocBuff[16] = 0x00;
tocBuff[17] = 0x03;
tocBuff[18] = 0x00;
tocBuff[19] = 0x00;
if( layer1start == -1 ) {
// search for it
printf("PeopsCDVD: searching for layer1... ");
for(layer1start = (lastaddr/2-0x10)&~0xf; layer1start < 0x200010; layer1start += 16) {
f->dwFrame = layer1start;
if( pReadFunc(TRUE,f) != SS_COMP ) {
layer1start = 0x200010;
break;
}
// CD001
if( f->BufData[off+1] == 0x43 && f->BufData[off+2] == 0x44 && f->BufData[off+3] == 0x30 && f->BufData[off+4] == 0x30 && f->BufData[off+5] == 0x31 ) {
break;
}
}
if( layer1start >= 0x200010 ) {
printf("Couldn't find second layer on dual layer... ignoring\n");
// fake it
tocBuff[ 0] = 0x04;
tocBuff[ 1] = 0x02;
tocBuff[ 2] = 0xF2;
tocBuff[ 3] = 0x00;
tocBuff[ 4] = 0x86;
tocBuff[ 5] = 0x72;
tocBuff[16] = 0x00;
tocBuff[17] = 0x03;
tocBuff[18] = 0x00;
tocBuff[19] = 0x00;
layer1start = -2;
return 0;
}
printf("found at 0x%8.8x\n", layer1start);
layer1start = layer1start+0x30000-1;
}
tocBuff[20] = layer1start>>24;
tocBuff[21] = (layer1start>>16)&0xff;
tocBuff[22] = (layer1start>>8)&0xff;
tocBuff[23] = (layer1start>>0)&0xff;
free(f);
}
else {
// fake it
tocBuff[ 0] = 0x04;
tocBuff[ 1] = 0x02;
tocBuff[ 2] = 0xF2;
tocBuff[ 3] = 0x00;
tocBuff[ 4] = 0x86;
tocBuff[ 5] = 0x72;
tocBuff[16] = 0x00;
tocBuff[17] = 0x03;
tocBuff[18] = 0x00;
tocBuff[19] = 0x00;
}
}
else if(type == CDVD_TYPE_CDDA ||
type == CDVD_TYPE_PS2CDDA ||
type == CDVD_TYPE_PS2CD ||
type == CDVD_TYPE_PSCDDA ||
type == CDVD_TYPE_PSCD)
{
// cd toc
// (could be replaced by 1 command that reads the full toc)
u8 min, sec, frm,i;
s32 err;
cdvdTN diskInfo;
cdvdTD trackInfo;
memset(tocBuff, 0, 1024);
if (CDVDgetTN(&diskInfo) == -1) { diskInfo.etrack = 0;diskInfo.strack = 1; }
if (CDVDgetTD(0, &trackInfo) == -1) trackInfo.lsn = 0;
tocBuff[0] = 0x41;
tocBuff[1] = 0x00;
//Number of FirstTrack
tocBuff[2] = 0xA0;
tocBuff[7] = itob(diskInfo.strack);
//Number of LastTrack
tocBuff[12] = 0xA1;
tocBuff[17] = itob(diskInfo.etrack);
//DiskLength
lba_to_msf(trackInfo.lsn, &min, &sec, &frm);
tocBuff[22] = 0xA2;
tocBuff[27] = itob(min);
tocBuff[28] = itob(sec);
tocBuff[29] = itob(frm);
fprintf(stderr,"Track 0: %d mins %d secs %d frames\n",min,sec,frm);
for (i=diskInfo.strack; i<=diskInfo.etrack; i++)
{
err = CDVDgetTD(i, &trackInfo);
lba_to_msf(trackInfo.lsn, &min, &sec, &frm);
tocBuff[i*10+30] = trackInfo.type;
tocBuff[i*10+32] = err == -1 ? 0 : itob(i); //number
tocBuff[i*10+37] = itob(min);
tocBuff[i*10+38] = itob(sec);
tocBuff[i*10+39] = itob(frm);
fprintf(stderr,"Track %d: %d mins %d secs %d frames\n",i,min,sec,frm);
}
}
else
return -1;
return 0;
}
/////////////////////////////////////////////////////////
// gettn: first/last track num
EXPORT_GCC long CALLBACK CDVDgetTN(cdvdTN *Buffer)
{
if(!bIsOpen) CDVDopen("DVD"); // not open? funny emu...
if(!iCDROK) // cd not ok?
{
Buffer->strack=1;
Buffer->etrack=1;
return -1;
}
ReadTOC(); // read the TOC
Buffer->strack=sTOC.cFirstTrack; // get the infos
Buffer->etrack=sTOC.cLastTrack;
return 0;
}
/////////////////////////////////////////////////////////
// gettd: track addr
EXPORT_GCC long CALLBACK CDVDgetTD(unsigned char track, cdvdTD *Buffer)
{
unsigned long lu,i;
unsigned char buffer[2352];
unsigned char *buf;
u8 t1;
if(!bIsOpen) CDVDopen("DVD"); // not open? funny emu...
if(!iCDROK) return -1; // cd not ok? bye
ReadTOC(); // read toc
/*
// PSEmu style:
if(track==0) // 0 = last track
{
lu=reOrder(sTOC.tracks[sTOC.cLastTrack].lAddr);
addr2time(lu,buffer);
}
else // others: track n
{
lu=reOrder(sTOC.tracks[track-1].lAddr);
addr2time(lu,buffer);
}
Buffer->minute = buffer[1];
Buffer->second = buffer[2];
Buffer->frame = buffer[3];
Buffer->type = iCDType;
#ifdef DBGOUT
auxprintf("Read Toc %d: %u\n",track,lu);
#endif
*/
lu=0;
if(track==0)
lu=reOrder(sTOC.tracks[sTOC.cLastTrack].lAddr);
else
lu=reOrder(sTOC.tracks[track].lAddr);
//addr2time(lu,buffer);
Buffer->lsn=lu;
if(track==0)
Buffer->type = iCDType;
else
{
lu=0;
for(i=sTOC.cFirstTrack;i<track;i++)
lu+=sTOC.tracks[i].lAddr;
CDVDreadTrack(lu+16,CDVD_MODE_2352);
buf=CDVDgetBuffer();
if(buf!=NULL) memcpy(buffer,buf,2352);
else memset(buffer,0,2352);
if( (buffer[16]==01)
&&(buffer[17]=='C')
&&(buffer[18]=='D')
)
t1 = CDVD_MODE1_TRACK;
else if( (buffer[24]==01)
&&(buffer[25]=='C')
&&(buffer[26]=='D')
)
t1 = CDVD_MODE2_TRACK;
else t1 = CDVD_AUDIO_TRACK;
Buffer->type=t1;
}
return 0;
}
/////////////////////////////////////////////////////////
// readtrack: start reading at given address
EXPORT_GCC long CALLBACK CDVDreadTrack(unsigned long lsn, int mode)
{
if(!bIsOpen) CDVDopen("DVD"); // usual checks
if(!iCDROK) return -1;
if(bCDDAPlay) bCDDAPlay=FALSE;
#ifdef DBGOUT
auxprintf("Read Track %u: %d\n",lsn,mode);
#endif
lLastAccessedAddr=lsn; // store read track values (for getbuffer)
iLastAccessedMode=mode;
if(!pReadTrackFunc(lLastAccessedAddr)) // start reading
return -1;
return 0;
}
/////////////////////////////////////////////////////////
// getbuffer: will be called after readtrack, to get ptr
// to data
// small helper buffer to get bigger block sizes
unsigned char cDataAndSub[2368];
EXPORT_GCC unsigned char * CALLBACK CDVDgetBuffer()
{
unsigned char * pbuffer;
if(!bIsOpen) CDVDopen("DVD");
if(pGetPtrFunc) pGetPtrFunc(); // get ptr on thread modes
pbuffer=pCurrReadBuf; // init buffer pointer
if (fdump != NULL) {
isoWriteBlock(fdump, pbuffer, lLastAccessedAddr);
}
if(iLastAccessedMode!=iUsedMode)
{
switch(iLastAccessedMode) // what does the emu want?
{//------------------------------------------------//
case CDVD_MODE_2048:
{
if(iUsedBlockSize==2352) pbuffer+=24;
}break;
//------------------------------------------------//
case CDVD_MODE_2352:
{
if(iUsedBlockSize==2048)
{
memset(cDataAndSub,0,2368);
memcpy(cDataAndSub+24,pbuffer,2048);
pbuffer=cDataAndSub;
}
}break;
//------------------------------------------------//
case CDVD_MODE_2340:
{
if(iUsedBlockSize==2048)
{
memset(cDataAndSub,0,2368);
memcpy(cDataAndSub+12,pbuffer,2048);
pbuffer=cDataAndSub;
}
else pbuffer+=12;
}break;
//------------------------------------------------//
case CDVD_MODE_2328:
{
if(iUsedBlockSize==2048)
{
memset(cDataAndSub,0,2368);
memcpy(cDataAndSub+0,pbuffer,2048);
pbuffer=cDataAndSub;
}
else pbuffer+=24;
}break;
//------------------------------------------------//
case CDVD_MODE_2368:
{
if(iUsedBlockSize==2048)
{
memset(cDataAndSub,0,2368);
memcpy(cDataAndSub+24,pbuffer,2048);
pbuffer=cDataAndSub;
/*
// NO SUBCHANNEL SUPPORT RIGHT NOW!!!
{
if(subHead) // some sub file?
CheckSUBCache(lLastAccessedAddr); // -> get cached subs
else
if(iUseSubReading!=1 && pCurrSubBuf) // no direct cd sub read?
FakeSubData(lLastAccessedAddr); // -> fake the data
memcpy(cDataAndSub,pCurrReadBuf,2352);
if(pCurrSubBuf)
memcpy(cDataAndSub+2352,pCurrSubBuf+12,16);
pbuffer=cDataAndSub;
}
*/
}
}break;
//------------------------------------------------//
}
}
#ifdef DBGOUT
auxprintf("get buf %d\n",iLastAccessedMode);
/*
{
int k;
for(k=0;k<2352;k++)
auxprintf("%02x ",*(pbuffer+k));
auxprintf("\n\n");
}
*/
#endif
return pbuffer;
}
/////////////////////////////////////////////////////////
EXPORT_GCC long CALLBACK CDVDgetDiskType()
{
return iCDType;
}
/////////////////////////////////////////////////////////
// CDVDgetTrayStatus
EXPORT_GCC long CALLBACK CDVDgetTrayStatus()
{
static time_t to=0;
static long lLastTrayState=CDVD_TRAY_CLOSE;
if(to==time(NULL)) return lLastTrayState; // we only check once per second
to = time(NULL);
lLastTrayState=CDVD_TRAY_CLOSE; // init state with "closed"
if(iCheckTrayStatus) // user really want a tray check
{
int iStatus;
LockGenCDAccess(); // make sure that no more reading is happening
iStatus=GetSCSIStatus(iCD_AD,iCD_TA,iCD_LU); // get device status
UnlockGenCDAccess();
if(iStatus==SS_ERR)
lLastTrayState=CDVD_TRAY_OPEN;
}
#ifdef DBGOUT
auxprintf("check %d -> %d\n",to,lLastTrayState);
#endif
return lLastTrayState;
}
EXPORT_GCC s32 CALLBACK CDVDctrlTrayOpen() {
return 0;
}
EXPORT_GCC s32 CALLBACK CDVDctrlTrayClose() {
return 0;
}
/////////////////////////////////////////////////////////
// configure: shows config window
EXPORT_GCC void CALLBACK CDVDconfigure()
{
if(iCDROK) // mmm... someone has already called Open? bad
{MessageBeep((UINT)-1);return;}
CreateGenEvent(); // we need an event handle
DialogBox(hInst,MAKEINTRESOURCE(IDD_CONFIG), // call dialog
GetActiveWindow(),(DLGPROC)CDRDlgProc);
FreeGenEvent(); // free event handle
}
/////////////////////////////////////////////////////////
// about: shows about window
EXPORT_GCC void CALLBACK CDVDabout()
{
DialogBox(hInst,MAKEINTRESOURCE(IDD_ABOUT),
GetActiveWindow(),(DLGPROC)AboutDlgProc);
}
/////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////
/*
// CURRENTLY UNUSED OLD STUFF FROM PSX CD PLUGIN:
/////////////////////////////////////////////////////////
// audioplay: PLAYSECTOR is NOT BCD coded !!!
EXPORT_GCC long CALLBACK CDRplay(unsigned char * sector)
{
if(!bIsOpen) CDVDopen();
if(!iCDROK) return PSE_ERR_FATAL;
if(!DoCDDAPlay(time2addr(sector))) // start playing
return PSE_CDR_ERR_NOREAD;
bCDDAPlay=TRUE; // raise flag: we are playing
return PSE_CDR_ERR_SUCCESS;
}
/////////////////////////////////////////////////////////
// audiostop: stops cdda playing
EXPORT_GCC long CALLBACK CDRstop(void)
{
if(!bCDDAPlay) return PSE_ERR_FATAL;
DoCDDAPlay(0); // stop cdda
bCDDAPlay=FALSE; // reset flag: no more playing
return PSE_CDR_ERR_SUCCESS;
}
/////////////////////////////////////////////////////////
// getdriveletter
EXPORT_GCC char CALLBACK CDRgetDriveLetter(void)
{
if(!iCDROK) return 0; // not open? no way to get the letter
if(iInterfaceMode==2 || iInterfaceMode==3) // w2k/xp: easy
{
return MapIOCTLDriveLetter(iCD_AD,iCD_TA,iCD_LU);
}
else // but with aspi???
{ // -> no idea yet (maybe registry read...pfff)
}
return 0;
}
/////////////////////////////////////////////////////////
// getstatus: pcsx func... poorly supported here
// problem is: func will be called often, which
// would block all of my cdr reading if I would use
// lotsa scsi commands
struct CdrStat
{
unsigned long Type;
unsigned long Status;
unsigned char Time[3]; // current playing time
};
struct CdrStat ostat;
// reads cdr status
// type:
// 0x00 - unknown
// 0x01 - data
// 0x02 - audio
// 0xff - no cdrom
// status:
// 0x00 - unknown
// 0x02 - error
// 0x08 - seek error
// 0x10 - shell open
// 0x20 - reading
// 0x40 - seeking
// 0x80 - playing
// time:
// byte 0 - minute
// byte 1 - second
// byte 2 - frame
EXPORT_GCC long CALLBACK CDRgetStatus(struct CdrStat *stat)
{
int iStatus;
static time_t to;
if(!bCDDAPlay) // if not playing update stat only once in a second
{
if(to<time(NULL))
{
to = time(NULL);
}
else
{
memcpy(stat, &ostat, sizeof(struct CdrStat));
return 0;
}
}
memset(stat, 0, sizeof(struct CdrStat));
if(!iCDROK) return -1; // not opened? bye
if(bCDDAPlay) // cdda is playing?
{
unsigned char * pB=GetCDDAPlayPosition(); // -> get pos
stat->Type = 0x02; // -> audio
if(pB)
{
stat->Status|=0x80; // --> playing flag
stat->Time[0]=pB[18]; // --> and curr play time
stat->Time[1]=pB[19];
stat->Time[2]=pB[20];
}
}
else // cdda not playing?
{
stat->Type = 0x01; // -> data
}
LockGenCDAccess(); // make sure that no more reading is happening
iStatus=GetSCSIStatus(iCD_AD,iCD_TA,iCD_LU); // get device status
UnlockGenCDAccess();
if(iStatus==SS_ERR)
{ // no cdrom?
stat->Type = 0xff;
stat->Status|= 0x10;
}
memcpy(&ostat, stat, sizeof(struct CdrStat));
return 0;
}
/////////////////////////////////////////////////////////
*/
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