sl@0: // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // f32test\ext\fat_ext.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: //! @SYMTestCaseID FSBASE-CR-JHAS-68YPX7
sl@0: //! @SYMTestType CT
sl@0: //! @SYMREQ CR JHAS-68YPX7
sl@0: //! @SYMTestCaseDesc Test facility used by and bad disk handling test
sl@0: //! @SYMTestStatus Implemented
sl@0: //! @SYMTestActions Provided plug-in test extension for FAT
sl@0: //! @SYMTestExpectedResults N/A
sl@0: //! @SYMTestPriority Low
sl@0: //! @SYMAuthor Ying Shi
sl@0: //! @SYMCreationDate 20/05/2005
sl@0: //! @See EFat and EFat32 components
sl@0: //! @file f32test\ext\fat_ext.cpp
sl@0: 
sl@0: #include <e32math.h>
sl@0: #include "t_fatext.h"
sl@0: 
sl@0: //--------------------------  CFatTestProxyDrive  --------------------------
sl@0: 
sl@0: CFatTestProxyDrive* CFatTestProxyDrive::NewL(CProxyDrive* aProxyDrive, CMountCB* aMount)
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::NewL"));
sl@0:     CFatTestProxyDrive* drive = new(ELeave) CFatTestProxyDrive(aProxyDrive,aMount);
sl@0:     return(drive);
sl@0:     }
sl@0: 
sl@0: CFatTestProxyDrive::CFatTestProxyDrive(CProxyDrive* aProxyDrive, CMountCB* aMount)
sl@0:     : CTestProxyDrive(aProxyDrive,aMount)
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::CFatTestProxyDrive"));
sl@0:     InitL();
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Read(TInt64 aPos,TInt aLength,const TAny* aTrg,TInt aMessageHandle,TInt aOffset,TInt aFlags)
sl@0:     {
sl@0: //    __PRINT(_L("CFatTestProxyDrive::Read"));
sl@0:     if (CheckEvent(aPos,aLength))
sl@0:         return KErrCorrupt;
sl@0: 
sl@0:     return CTestProxyDrive::Read(aPos,aLength,aTrg,aMessageHandle,aOffset,aFlags);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Read(TInt64 aPos,TInt aLength,const TAny* aTrg,TInt aMessageHandle,TInt aOffset)
sl@0:     {
sl@0:     return Read(aPos,aLength,aTrg,aMessageHandle,aOffset,0);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Read(TInt64 aPos,TInt aLength,TDes8& aTrg)
sl@0:     {
sl@0:     return Read(aPos,aLength,&aTrg,KLocalMessageHandle,0,0);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Write(TInt64 aPos,TInt aLength,const TAny* aSrc,TInt aMessageHandle,TInt anOffset,TInt aFlags)
sl@0:     {
sl@0: //    __PRINT(_L("CFatTestProxyDrive::Write"));
sl@0:     if (CheckEvent(aPos,aLength))
sl@0:         return KErrCorrupt;
sl@0: 
sl@0:     return CTestProxyDrive::Write(aPos,aLength,aSrc,aMessageHandle,anOffset,aFlags);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Write(TInt64 aPos,TInt aLength,const TAny* aSrc,TInt aMessageHandle,TInt anOffset)
sl@0:     {
sl@0:     return Write(aPos,aLength,aSrc,aMessageHandle,anOffset,0);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Write(TInt64 aPos,const TDesC8& aSrc)
sl@0:     {
sl@0:     return Write(aPos,aSrc.Length(),&aSrc,KLocalMessageHandle,0,0);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Format(TFormatInfo& anInfo)
sl@0:     {
sl@0:     //__PRINT(_L("CFatTestProxyDrive::Format"));
sl@0:     TInt len;
sl@0:     TInt64 pos = ((TInt64)anInfo.i512ByteSectorsFormatted) << KDefaultSectorLog2;
sl@0:     // base function call in order to get anInfo.iMaxBytesPerFormat
sl@0:     // for the first time
sl@0:     if (anInfo.iMaxBytesPerFormat == 0)
sl@0:         {
sl@0:         TInt r = CTestProxyDrive::Format(anInfo);
sl@0:         len = anInfo.iMaxBytesPerFormat;
sl@0:         if (CheckEvent(pos,len))
sl@0:             {
sl@0:             anInfo.i512ByteSectorsFormatted = 0;
sl@0:             return KErrCorrupt;
sl@0:             }
sl@0:         return r;
sl@0:         }
sl@0:     len = anInfo.iMaxBytesPerFormat;
sl@0:     if (CheckEvent(pos,len))
sl@0:         return KErrCorrupt;
sl@0:     return CTestProxyDrive::Format(anInfo);
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::Format(TInt64 aPos,TInt aLength)
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::Format"));
sl@0:     if (CheckEvent(aPos,aLength))
sl@0:         return KErrCorrupt;
sl@0: 
sl@0:     return CTestProxyDrive::Format(aPos, aLength);
sl@0:     }
sl@0: 
sl@0: void CFatTestProxyDrive::DoInitL()
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::DoInit"));
sl@0:     if (!CheckMount())
sl@0:         User::Leave(KErrNotReady);
sl@0: 
sl@0:    
sl@0:     iTotalSectors = iBootSector.VolumeTotalSectorNumber();
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::DoControlIO(const RMessagePtr2& aMessage,TInt aCommand,TAny* aParam1,TAny* aParam2)
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::DoControlIO"));
sl@0: 
sl@0: 	// read boot sector & update iFatType etc
sl@0: 	CheckMount();
sl@0: 
sl@0:     TInt r = KErrNone;
sl@0: 
sl@0: 	// Make sure that the information is up to date.
sl@0:     if ((r=ReadBootSector()) != KErrNone)
sl@0:         {
sl@0:         __PRINT1(_L("ReadBootSector error: %d"), r);
sl@0:         return EFalse;
sl@0:         }
sl@0: 
sl@0:     switch(aCommand+EExtCustom)
sl@0:         {
sl@0:         case ESectorsPerCluster:
sl@0:             r = aMessage.Write(2, TPckgBuf<TInt>(iBootSector.SectorsPerCluster()));
sl@0:             break;
sl@0:         case EFatType:
sl@0:             r = aMessage.Write(2, TPckgBuf<TInt>(iBootSector.FatType()));
sl@0:             break;
sl@0:         
sl@0:         case EGetDataPosition:
sl@0:             {
sl@0:                 //-- obtain 1st data sector media position. This is actually a nasty hack;
sl@0:                 //-- we expect that the drive will be freshly formatted, thust the root dir is empty and the first file we create there
sl@0:                 //-- will occupy the certain place.
sl@0:                 TUint32 dataSec; 
sl@0:                 
sl@0:                 if(iBootSector.FatType() !=EFat32)
sl@0:                    dataSec = iBootSector.FirstDataSector();
sl@0:                 else
sl@0:                   {//-- for FAT32 we assume that the root dir takes exactly 1 cluster. Another dirty trick
sl@0:                    dataSec = iBootSector.RootDirStartSector() + 1*iBootSector.SectorsPerCluster(); 
sl@0:                   }
sl@0:                 __PRINT1(_L("EGetDataPosition, sec:%d"), dataSec);
sl@0:                 r = aMessage.Write(2, TPckgBuf<TInt>(dataSec << KDefaultSectorLog2));
sl@0:             }
sl@0:             break;
sl@0: 
sl@0:         default:
sl@0:             r = CBaseExtProxyDrive::ControlIO(aMessage,aCommand,aParam1,aParam2);
sl@0:             __PRINT2(_L("Get unknown command %d error %d"), aCommand, r);
sl@0:         }
sl@0:     return r;
sl@0:     }
sl@0: 
sl@0: TBool CFatTestProxyDrive::DoCheckEvent(TInt64 aPos, TInt aLength)
sl@0:     {
sl@0:     //__PRINT2(_L("CFatTestProxyDrive::DoCheckEvent() pos:%d, len:%d"), (TUint32)aPos, aLength);
sl@0: 
sl@0:     if (aPos<0 || aLength<=0 || (aPos>>KDefaultSectorLog2)>=iTotalSectors)
sl@0:         return EFalse;
sl@0: 
sl@0:     TInt begin = (TInt)(aPos >> KDefaultSectorLog2);
sl@0:     TInt end = (TInt)((aPos+aLength-1) >> KDefaultSectorLog2);
sl@0:     end = Min(end, iTotalSectors-1);
sl@0: 
sl@0:     if (iEventType == ENext)
sl@0:         {
sl@0:         Mark(begin);
sl@0:         iEventType = ENone;
sl@0:         iLastErrorReason = TErrorInfo::EBadSector;
sl@0:         iSuccessBytes = 0;
sl@0:         return ETrue;
sl@0:         }
sl@0: 
sl@0:     if (iEventType == EDeterministic)
sl@0:         {
sl@0:         if (iCount <= end-begin+1)
sl@0:             {
sl@0:             iCount = 0;
sl@0:             Mark(begin+iCount-1);
sl@0:             iEventType = ENone;
sl@0:             iLastErrorReason = TErrorInfo::EBadSector;
sl@0:             iSuccessBytes = (iCount-1) << KDefaultSectorLog2;
sl@0:             return ETrue;
sl@0:             }
sl@0:         else
sl@0:             iCount -= end-begin+1;
sl@0:         }
sl@0: 
sl@0:     TInt i;
sl@0:     for (i=begin; i<=end; i++)
sl@0:         if (IsMarked(i))
sl@0:             {
sl@0:             __PRINT(_L("CFatTestProxyDrive::DoCheckEvent() Sector Marked as bad!"));
sl@0:             iLastErrorReason = TErrorInfo::EBadSector;
sl@0:             iSuccessBytes = (i-begin) << KDefaultSectorLog2;
sl@0:             return ETrue;
sl@0:             }
sl@0: 
sl@0:     return EFalse;
sl@0:     }
sl@0: 
sl@0: TBool CFatTestProxyDrive::CheckMount()
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::CheckMount"));
sl@0: 
sl@0:     //-- read boot sector
sl@0:     if (ReadBootSector() != KErrNone)
sl@0:         {
sl@0:         __PRINT(_L("ReadBootSector error: %d"));
sl@0:         return EFalse;
sl@0:         }
sl@0: 
sl@0:     //-- validate boot sector
sl@0:     if(!iBootSector.IsValid())
sl@0:     {
sl@0:         goto BadBootSector;
sl@0:     }
sl@0: 
sl@0:     if (iBootSector.FatType() == EFat32)   // fat 32
sl@0:         {
sl@0:         if (iBootSector.RootDirEntries() != 0   ||
sl@0:             iBootSector.TotalSectors() != 0     ||
sl@0:             iBootSector.HugeSectors() == 0      ||
sl@0:             iBootSector.FatSectors32() == 0     ||
sl@0:             iBootSector.RootClusterNum() < 2)
sl@0:             {
sl@0:                 goto BadBootSector;
sl@0:             }
sl@0:         }
sl@0:     else // fat16/12
sl@0:         {
sl@0:         if (iBootSector.RootDirEntries() == 0 ||
sl@0:             (iBootSector.TotalSectors() == 0 && iBootSector.HugeSectors() == 0))
sl@0:             {
sl@0:                 goto BadBootSector;
sl@0:             }
sl@0:         }
sl@0: 
sl@0:     //-- boot sector is OK
sl@0:     return ETrue;
sl@0: 
sl@0:     //-- Invalid boot sector
sl@0:     BadBootSector:
sl@0:         
sl@0:         __PRINT(_L("Boot sector is invalid! dump:"));
sl@0:         iBootSector.PrintDebugInfo();
sl@0:         return EFalse;
sl@0: 
sl@0: 
sl@0: 
sl@0:     }
sl@0: 
sl@0: TInt CFatTestProxyDrive::ReadBootSector()
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDrive::ReadBootSector"));
sl@0: 
sl@0:     const TInt KBufSz = KSizeOfFatBootSector;
sl@0:     
sl@0:     TBuf8<KBufSz> bootSecBuf(KBufSz);
sl@0:     TInt r = CTestProxyDrive::Read(0, KBufSz, bootSecBuf);
sl@0: 	if (r != KErrNone)
sl@0: 		return r;
sl@0: 
sl@0:     //-- initialise TFatBootSector object
sl@0:     iBootSector.Internalize(bootSecBuf);
sl@0: 
sl@0:     return KErrNone;
sl@0:     }
sl@0: 
sl@0: 
sl@0: // --------------------------  CFatTestProxyDriveFactory  --------------------------
sl@0: 
sl@0: /**
sl@0: Factory class constructor
sl@0: @internalTechnology
sl@0: */
sl@0: CFatTestProxyDriveFactory::CFatTestProxyDriveFactory()
sl@0:     {
sl@0:     }
sl@0: 
sl@0: /**
sl@0: Factory class installer
sl@0: @internalTechnology
sl@0: */
sl@0: TInt CFatTestProxyDriveFactory::Install()
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDriveFactory::Install"));
sl@0:     _LIT(KFatTestExt,"FatTest");
sl@0:     return(SetName(&KFatTestExt));
sl@0:     }
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: CProxyDrive* CFatTestProxyDriveFactory::NewProxyDriveL(CProxyDrive* aProxy,CMountCB* aMount)
sl@0:     {
sl@0:     __PRINT(_L("CFatTestProxyDriveFactory::NewProxyDriveL"));
sl@0:     return(CFatTestProxyDrive::NewL(aProxy,aMount));
sl@0:     }
sl@0: 
sl@0: 
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: extern "C" {
sl@0: EXPORT_C CProxyDriveFactory* CreateFileSystem()
sl@0:     {
sl@0:     __PRINT(_L("CreateFileSystem"));
sl@0:     return new CFatTestProxyDriveFactory();
sl@0:     }
sl@0: }