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added reading of cd table of contents/volume descriptor

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@942
This commit is contained in:
Ulf Wohlers 2003-04-18 13:38:10 +00:00
parent 38bc54fbd9
commit 619c351959
1 changed files with 65 additions and 9 deletions
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74
src/dos/dos_mscdex.cpp
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@ -97,10 +97,10 @@ public:
int AddDrive (Bit16u _drive, char* physicalPath, Bit8u& subUnit);
void GetDrives (PhysPt data);
void GetDriverInfo (PhysPt data);
bool GetCopyrightName (Bit16u drive, PhysPt data) { return false; };
bool GetAbstractName (Bit16u drive, PhysPt data) { return false; };
bool GetDocumentationName(Bit16u drive, PhysPt data) { return false; };
bool ReadVTOC (Bit16u drive, Bit16u volume, PhysPt data, Bit16u& error) { return false; };
bool GetCopyrightName (Bit16u drive, PhysPt data);
bool GetAbstractName (Bit16u drive, PhysPt data);
bool GetDocumentationName(Bit16u drive, PhysPt data);
bool ReadVTOC (Bit16u drive, Bit16u volume, PhysPt data, Bit16u& error);
bool ReadSectors (Bit16u drive, Bit32u sector, Bit16u num, PhysPt data);
bool ReadSectors (Bit8u subUnit, bool raw, Bit32u sector, Bit16u num, PhysPt data);
bool ReadSectorsMSF (Bit8u subUnit, bool raw, Bit32u sector, Bit16u num, PhysPt data);
@ -271,7 +271,9 @@ int CMscdex::AddDrive(Bit16u _drive, char* physicalPath, Bit8u& subUnit)
devHeader.SetNumSubUnits(devHeader.GetNumSubUnits()+1);
dinfo[numDrives].drive = (Bit8u)_drive;
dinfo[numDrives].physDrive = toupper(physicalPath[0]);
numDrives++;
numDrives++;
// stop audio
StopAudio(subUnit);
return result;
}
return 4;
@ -420,6 +422,60 @@ Bit32u CMscdex::GetVolumeSize(Bit8u subUnit)
return 0;
};
bool CMscdex::ReadVTOC(Bit16u drive, Bit16u volume, PhysPt data, Bit16u& error)
{
ReadSectors(GetSubUnit(drive),false,/*150+*/16,1,data) ? error=0:error=MSCDEX_ERROR_DRIVE_NOT_READY;
return (error==0);
};
bool CMscdex::GetCopyrightName(Bit16u drive, PhysPt data)
{
Bit16u error,seg,size = 128;
bool success = false;
if (DOS_AllocateMemory(&seg,&size)) {
PhysPt ptoc = PhysMake(seg,0);
success = ReadVTOC(drive,0x00,ptoc,error);
if (success) {
MEM_BlockCopy(data,ptoc+702,37);
mem_writeb(data+37,0);
};
DOS_FreeMemory(seg);
}
return success;
};
bool CMscdex::GetAbstractName(Bit16u drive, PhysPt data)
{
Bit16u error,seg,size = 128;
bool success = false;
if (DOS_AllocateMemory(&seg,&size)) {
PhysPt ptoc = PhysMake(seg,0);
success = ReadVTOC(drive,0x00,ptoc,error);
if (success) {
MEM_BlockCopy(data,ptoc+739,37);
mem_writeb(data+37,0);
};
DOS_FreeMemory(seg);
}
return success;
};
bool CMscdex::GetDocumentationName(Bit16u drive, PhysPt data)
{
Bit16u error,seg,size = 128;
bool success = false;
if (DOS_AllocateMemory(&seg,&size)) {
PhysPt ptoc = PhysMake(seg,0);
success = ReadVTOC(drive,0x00,ptoc,error);
if (success) {
MEM_BlockCopy(data,ptoc+776,37);
mem_writeb(data+37,0);
};
DOS_FreeMemory(seg);
}
return success;
};
bool CMscdex::GetUPC(Bit8u subUnit, Bit8u& attr, char* upc)
{
if (subUnit>=numDrives) return false;
@ -554,7 +610,7 @@ static Bitu MSCDEX_Interrupt_Handler(void)
Bit8u subUnit = mem_readb(data+1);
Bit8u funcNr = mem_readb(data+2);
// if (funcNr!=0x03) LOG("MSCDEX: Driver Function %02X",funcNr);
// LOG(LOG_ERROR,"MSCDEX: Driver Function %02X",funcNr);
switch (funcNr) {
@ -720,7 +776,7 @@ static bool MSCDEX_Handler(void)
if (reg_ah!=0x15) return false;
PhysPt data = PhysMake(SegValue(es),reg_bx);
// if (reg_ax!=0x1510) LOG("MSCEEX: INT 2F %04X",reg_ax);
// LOG(LOG_ERROR,"MSCDEX: INT 2F %04X",reg_ax);
switch (reg_ax) {
case 0x1500: /* Install check */
@ -754,7 +810,7 @@ static bool MSCDEX_Handler(void)
CALLBACK_SCF(true);
};
return true;
/* case 0x1505: { // read vtoc
case 0x1505: { // read vtoc
Bit16u error = 0;
if (mscdex->ReadVTOC(reg_cx,reg_dx,data,error)) {
CALLBACK_SCF(false);
@ -763,7 +819,7 @@ static bool MSCDEX_Handler(void)
CALLBACK_SCF(true);
};
};
return true;*/
return true;
case 0x1508: { // read sectors
Bit32u sector = (reg_si<<16)+reg_di;
if (mscdex->ReadSectors(reg_cx,sector,reg_dx,data)) {