/**
2nd stage constructor.
@param aNumPages number of pages in the directory cache.
@param aPageSizeLog2 Log2 of the page size in bytes, this is the cache read granularity
@param aWrGranularityLog2 Log2(cache write granularity)
*/
void CMediaWTCache::InitialiseL(TUint32 aNumPages, TUint32 aPageSizeLog2, TUint32 aWrGranularityLog2)
{
ASSERT(aNumPages && aPageSizeLog2);
__PRINT3(_L("#CMediaWTCache::InitialiseL() Pages=%d, PageSzLog2=%d, WrGrLog2:%d"), aNumPages, aPageSizeLog2, aWrGranularityLog2);
ASSERT(aNumPages);
ASSERT(aPageSizeLog2);
if(aWrGranularityLog2)
{
ASSERT(aWrGranularityLog2 >= KDefSectorSzLog2 && aWrGranularityLog2 <= aPageSizeLog2);
}
iPageSizeLog2 = aPageSizeLog2;
iWrGranularityLog2 = aWrGranularityLog2;
//-- create cache pages
for(TUint cnt=0; cnt<aNumPages; ++cnt)
{
CWTCachePage* pPage = CWTCachePage::NewL(aPageSizeLog2);
iPages.AppendL(pPage);
}
InvalidateCache();
}
/**
Publishing method
Sends a property event on behalf of CMassStorageDrive, with the mountstate and drivestate
values encoded into one 32-bit word.
*/
void RDriveStateChangedPublisher::DriveStateChanged()
{
__MSFNLOG
TUsbMsDrivesStatus allDrivesStatus;
for(TUint8 i = 0; i < iDrives.Count(); i++)
{
allDrivesStatus.Append(iDriveMap[i]);
CMassStorageDrive::TMountState ms = iDrives[i]->MountState();
TLocalDriveRef::TDriveState ds = iDrives[i]->DriveState();
TInt driveStatus = EUsbMsDriveState_Error;
if((TUint8)ds < sizeof(table[0]) && (TUint8)ms < sizeof(table)/sizeof(table[0]))
{
driveStatus = table[ms][ds];
__PRINT3(_L("ms=%d ds=%d %d"), ms, ds, driveStatus);
}
allDrivesStatus.Append(driveStatus);
}
__PRINT1(_L("Publishing EUsbMsDriveState_DriveStatus for %d drives\n"),
allDrivesStatus.Length()/2);
if(KErrNone != RProperty::Set(KUsbMsDriveState_Category,
EUsbMsDriveState_DriveStatus,
allDrivesStatus))
{
__ASSERT_DEBUG(EFalse,User::Invariant());
}
}
/**
Dump cache content, only enabled in debug mode.
@see CDynamicDirCache::Control()
*/
void CDynamicDirCache::Dump()
{
__PRINT(_L("======== CDynamicDirCache::Dump ========="));
if (!iLockedQ.IsEmpty())
{
TDblQueIter<TDynamicDirCachePage> q(iLockedQ);
q.SetToFirst();
TInt i = 0;
while((TDynamicDirCachePage*)q)
{
TDynamicDirCachePage* pP = q++;
__PRINT3(_L("=== CDynamicDirCache::iLockedQ\t[%4d](pos=%lx, size=%d)"), i++, pP->StartPos(), pP->PageSizeInBytes());
}
}
if (!iUnlockedQ.IsEmpty())
{
TDblQueIter<TDynamicDirCachePage> q(iUnlockedQ);
q.SetToFirst();
TInt i = 0;
while((TDynamicDirCachePage*)q)
{
TDynamicDirCachePage* pP = q++;
__PRINT3(_L("=== CDynamicDirCache::iUnlockedQ\t[%4d](pos=%lx, size=%u)"), i++, pP->StartPos(), pP->PageSizeInBytes());
}
}
__PRINT2(_L("=== CDynamicDirCache::iActivePage\t[*](pos=%lx, size=%u)"), iActivePage->StartPos(), iActivePage->PageSizeInBytes());
if (iLookupTable.Count())
{
TInt i = 0;
THashSetIter<TLookupEntry> iter(iLookupTable);
TLookupEntry* pEntry;
pEntry = (TLookupEntry*) iter.Next();
while(pEntry)
{
TDynamicDirCachePage* pP = pEntry->iPage;
__PRINT3(_L("=== CDynamicDirCache::iLookupTable\t[%4d](pos=%lx, size=%u)"), i++, pP->StartPos(), pP->PageSizeInBytes());
pEntry = (TLookupEntry*) iter.Next();
};
}
__PRINT(_L("===========================================\n"));
}
/*
Print out current tree content
*/
void CLeafDirTree::DumpTreeContentL() const
{
RPointerArray<CLeafDirTreeNode>* nodeStack = new(ELeave) RPointerArray<CLeafDirTreeNode>(4);
RFs fs;
TInt nRes = fs.Connect();
User::LeaveIfError(nRes);
const TUint32 debugRegister = DebugRegister();
fs.SetDebugRegister(debugRegister|KFSYS);
if (iRoot != NULL)
{
nodeStack->Insert(iRoot, 0);
while(nodeStack->Count() > 0)
{
CLeafDirTreeNode* current = (*nodeStack)[0];
if (current->Parent() != NULL)
{
__PRINT3(_L("(\"%S\") -> \"%S\" : (%d)\n"), ¤t->Parent()->Path(), ¤t->Path(), current->StartClusterNum());
}
else
{
__PRINT2(_L("\"%S\" : (%d)\n"), ¤t->Path(), current->StartClusterNum());
}
nodeStack->Remove(0);
TInt currentCount = current->Children().Count();
if (currentCount > 0)
{
RPointerArray<CLeafDirTreeNode> children = current->Children();
for (TInt i = 0; i < currentCount; i++)
{
nodeStack->Insert(children[i], 0);
}
}
}
}
fs.SetDebugRegister(debugRegister);
fs.Close();
nodeStack->Close();
delete nodeStack;
}
/**
Open the device and do some initalisation work.
@param aParams device parameters
@return Epoc error code, KErrNone if everything is OK
*/
TInt CWinVolumeDevice::Connect(const TMediaDeviceParams& aParams)
{
__PRINT(_L("#-- CWinVolumeDevice::Connect()"));
if(!aParams.ipDevName)
{
__LOG(_L("#-- CWinVolumeDevice::Connect() device name is not set!"));
return KErrBadName;
}
__PRINTF(aParams.ipDevName);
ASSERT(!HandleValid() && ipScratchBuf);
//-- open the device
DWORD dwAccess = GENERIC_READ;
if(!aParams.iReadOnly)
dwAccess |= GENERIC_WRITE;
iDevHandle = CreateFileA(aParams.ipDevName,
dwAccess,
FILE_SHARE_READ,
(LPSECURITY_ATTRIBUTES)NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if(!HandleValid())
{
__LOG1(_L("#-- CWinVolumeDevice::Connect() Error creating device handle! WinErr:%d"), GetLastError());
return KErrGeneral;
}
//-- find out device geometry
iMediaType = Unknown;
iDrvGeometry.iBytesPerSector = KDefaultSectorSz;
DWORD junk;
//-- 1. try to query disk geometry, but it can produce wrong results for partitioned media
BOOL bResult = DeviceIoControl(Handle(),
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL, 0,
ipScratchBuf, KScratchBufSz,
&junk, (LPOVERLAPPED)NULL);
if(bResult)
{
const DISK_GEOMETRY& dg = (const DISK_GEOMETRY&)*ipScratchBuf;
iDrvGeometry.iBytesPerSector = dg.BytesPerSector;
iMediaType = dg.MediaType;
__PRINT3(_L("#-- dev geometry: Cyl:%d Heads:%d Sectors:%d"), dg.Cylinders.LowPart, dg.TracksPerCylinder, dg.SectorsPerTrack);
__PRINT2(_L("#-- dev geometry: MediaType:%d, bps:%d"), dg.MediaType, dg.BytesPerSector);
}
else
{
iMediaType = Unknown;
iDrvGeometry.iBytesPerSector = KDefaultSectorSz;
__LOG1(_L("#-- CWinVolumeDevice::Connect() IOCTL_DISK_GET_DRIVE_GEOMETRY WinError:%d !"), GetLastError());
}
//-- 1.1 check "bytes per sector" value and how it corresponds to the request from parameters
if(aParams.iDrvGeometry.iBytesPerSector == 0)
{//-- do nothing, this parameter is not set in config file, use media's
}
else if(aParams.iDrvGeometry.iBytesPerSector != iDrvGeometry.iBytesPerSector)
{//-- we can't set "SectorSize" value for the physical media
__LOG1(_L("#-- CWinVolumeDevice::Connect() can not use 'Sec. Size' value from config:%d !"), aParams.iDrvGeometry.iBytesPerSector);
Disconnect();
return KErrArgument;
}
ASSERT(IsPowerOf2(BytesPerSector()) && BytesPerSector() >= KDefaultSectorSz && BytesPerSector() < 4096);
//-- find out partition information in order to determine volume size.
bResult = DeviceIoControl(Handle(),
IOCTL_DISK_GET_PARTITION_INFO,
NULL, 0,
ipScratchBuf, KScratchBufSz,
&junk, (LPOVERLAPPED)NULL);
if(!bResult)
{//-- this is a fatal error
__LOG1(_L("#-- CWinVolumeDevice::Connect() IOCTL_DISK_GET_PARTITION_INFO WinError:%d !"), GetLastError());
Disconnect();
return KErrBadHandle;
}
//-- get partition informaton
const PARTITION_INFORMATION& pi = (const PARTITION_INFORMATION&)*ipScratchBuf;
TInt64 volSz = MAKE_TINT64(pi.PartitionLength.HighPart, pi.PartitionLength.LowPart);
iDrvGeometry.iSizeInSectors = (TUint32)(volSz / iDrvGeometry.iBytesPerSector);
__LOG3(_L("#-- partition size, bytes:%LU (%uMB), sectors:%u"), volSz, (TUint32)(volSz>>20), iDrvGeometry.iSizeInSectors);
//-- check if the media size is set in coonfig and if we can use this setting.
if(aParams.iDrvGeometry.iSizeInSectors == 0)
{//-- do nothing, the media size is not set in the ini file, use existing media parameters
}
else if(aParams.iDrvGeometry.iSizeInSectors > iDrvGeometry.iSizeInSectors)
{//-- requested media size in ini file is bigger than physical media, error.
//-- we can't increase physical media size
__LOG2(_L("#-- CWinVolumeDevice::Connect() 'MediaSizeSectors' value from config:%d > than physical:%d !"), aParams.iDrvGeometry.iSizeInSectors, iDrvGeometry.iSizeInSectors);
Disconnect();
return KErrArgument;
}
else if(aParams.iDrvGeometry.iSizeInSectors < iDrvGeometry.iSizeInSectors)
{//-- settings specify smaller media than physical one, adjust the size
__PRINT1(_L("#-- reducing media size to %d sectors"), aParams.iDrvGeometry.iSizeInSectors);
iDrvGeometry.iSizeInSectors = aParams.iDrvGeometry.iSizeInSectors;
}
ASSERT(iDrvGeometry.iSizeInSectors > KMinMediaSizeInSectors);
return KErrNone;
}
/**
Mount a Fat volume.
@param aForceMount Flag to indicate whether mount should be forced to succeed if an error occurs
@leave KErrNoMemory,KErrNotReady,KErrCorrupt,KErrUnknown.
*/
void CFatMountCB::MountL(TBool aForceMount)
{
const TInt driveNo = Drive().DriveNumber();
__PRINT3(_L("CFatMountCB::MountL() drv:%d, forceMount=%d, RuggedFAT:%d\n"), driveNo, aForceMount, IsRuggedFSys());
ASSERT(State() == ENotMounted || State() == EDismounted);
SetState(EMounting);
SetReadOnly(EFalse);
User::LeaveIfError(CreateDrive(driveNo));
//-- read FAT configuration parameters from estart.txt
iFatConfig.ReadConfig(driveNo);
//-- initialise interface to the low-level drive access
if(!iDriverInterface.Init(this))
User::LeaveIfError(KErrNoMemory);
//-- get drive capabilities
TLocalDriveCapsV2Buf capsBuf;
User::LeaveIfError(LocalDrive()->Caps(capsBuf));
iSize=capsBuf().iSize;
iRamDrive = EFalse;
if(capsBuf().iMediaAtt & KMediaAttVariableSize)
{//-- this is a RAM drive
UserSvr::UnlockRamDrive();
iRamDrive = ETrue;
}
if(aForceMount)
{//-- the state is "forcedly mounted", special case. This is an inconsistent state.
SetState(EInit_Forced);
return;
}
//-- read boot sector. If main is damaged, try to use backup one instead if this is not a RAM drive.
TFatBootSector bootSector;
User::LeaveIfError(ReadBootSector(bootSector, iRamDrive));
//-- print out boot sector debug information
bootSector.PrintDebugInfo();
//-- determine FAT type by data from boot sector. This is done by counting number of clusters, not by BPB_RootEntCnt
SetFatType(bootSector.FatType());
ASSERT(iFatType != EInvalid); //-- this shall be checked in ReadBootSector()
if(bootSector.RootDirEntries() == 0 && !Is32BitFat())
{//-- FAT types mismatch. BPB_RootEntCnt is 0, which can be only for FAT32, but the number of clusters is less
//-- than required for FAT32. Probably this is incorrectly FAT32 formatted media. Put the drive into ReadOnly mode, assuming
//-- that is FAT32.
__PRINT(_L("FAT type mismatch! Setting drive to ReadOnly mode for FAT32. \n"));
SetFatType(EFat32); //-- force FAT type to be FAT32
SetReadOnly(ETrue);
}
//-- store volume UID, it can be checked on Remount
iUniqueID = bootSector.UniqueID();
//-- populate volume parameters with the values from boot sector. They had been validated in TFatBootSector::IsValid()
iVolParam.Populate(bootSector);
//-- initialize the volume
InitializeL(capsBuf());
ASSERT(State()==EInit_R);
GetVolumeLabelFromDiskL(bootSector);
__PRINT2(_L("CFatMountCB::MountL() Completed, drv: %d, state:%d"), DriveNumber(), State());
}
