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// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// D_MEDNAND.CPP
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//
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//
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#define _MEDIA_DRIVER
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#include <nand_media.h>
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#include <emulator.h>
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#include <property.h>
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/********************************************
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* Driver definitions
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********************************************/
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const TInt KSimulatedDeviceId = 0xEC73;
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const CHAR KNandFileName[] = "NANDDRV.BIN";
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//
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// Platform dependent media driver class
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//
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class DMediaDriverNandWin32 : public DMediaDriverNand
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{
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public:
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DMediaDriverNandWin32(TMediaDevice aDevice);
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// replacing pure virtual - NAND device specific stuff
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virtual TInt Initialise();
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virtual TInt GetDeviceId(TUint8& aDeviceId, TUint8& aManufacturerId);
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virtual TInt DeviceRead(const TUint aPageAddress, TAny* aBuf, const TUint aLength);
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virtual TInt DeviceWrite(const TUint aPageAddress, TAny* aBuf, const TUint aLength);
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virtual TInt DeviceErase(const TUint aBlockAddress);
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virtual TInt DeviceClose();
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public:
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HANDLE iFile;
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HANDLE iMapping;
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TUint8* iBase;
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};
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LOCAL_C TInt MapLastError()
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//
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// Map an NT error to an Epoc/32 error.
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//
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{
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__PATH_NOT_YET_TESTED;
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DWORD r=GetLastError();
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TInt res;
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switch (r)
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{
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case ERROR_SHARING_VIOLATION : res=KErrAccessDenied; break;
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case ERROR_LOCK_VIOLATION : res=KErrLocked; break;
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case ERROR_FILE_NOT_FOUND: res=KErrNotFound; break;
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case ERROR_PATH_NOT_FOUND: res=KErrPathNotFound; break;
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case ERROR_ALREADY_EXISTS:
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case ERROR_FILE_EXISTS:
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res=KErrAlreadyExists;
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break;
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case ERROR_NOT_READY: res=KErrNotReady; break;
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case ERROR_UNRECOGNIZED_VOLUME:
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case ERROR_NOT_DOS_DISK:
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res=KErrUnknown;
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break;
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case ERROR_UNRECOGNIZED_MEDIA: res=KErrCorrupt; break;
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case ERROR_INVALID_NAME: res=KErrBadName; break;
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case ERROR_NO_MORE_FILES: res=KErrEof; break;
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case ERROR_DISK_FULL: res=KErrDiskFull; break;
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default: res=KErrGeneral;
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}
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return(res);
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}
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TInt DMediaDriverNandWin32::Initialise()
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//
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// Create the simulated NAND file if necessary and
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// map it into memory.
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//
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{
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__PATH_TESTED;
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// locate/open the file that models the flash
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CHAR filename[MAX_PATH];
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strcpy(filename, Property::GetString("EmulatorMediaPath"));
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if (!Emulator::CreateAllDirectories(filename))
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{
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__PATH_NOT_YET_TESTED;
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return Emulator::LastError();
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}
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strcat(filename, KNandFileName);
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iFile = CreateFileA(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, NULL);
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if (iFile == INVALID_HANDLE_VALUE)
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{
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__PATH_NOT_YET_TESTED;
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return Emulator::LastError();
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}
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const TUint32 flashSizeInBytes = iNumBlocks * iNumPagesPerBlock * (iNumBytesMain + iNumBytesSpare);
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SetFilePointer(iFile, flashSizeInBytes, NULL, FILE_BEGIN);
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SetEndOfFile(iFile);
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iMapping = CreateFileMappingA(iFile, NULL, PAGE_READWRITE, 0, flashSizeInBytes, NULL);
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if (iMapping == NULL)
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{
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__PATH_NOT_YET_TESTED;
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return Emulator::LastError();
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}
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iBase = (TUint8*)MapViewOfFile(iMapping, FILE_MAP_WRITE, 0, 0, flashSizeInBytes);
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if (iBase == NULL)
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{
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__PATH_NOT_YET_TESTED;
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return Emulator::LastError();
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}
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return KErrNone;
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}
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TInt DMediaDriverNandWin32::GetDeviceId(TUint8& aDeviceId, TUint8& aManufacturerId)
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{
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__PATH_TESTED;
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aManufacturerId = (KSimulatedDeviceId & 0xFF00) >> 8;
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aDeviceId = (KSimulatedDeviceId & 0xFF);
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return KErrNone;
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}
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TInt DMediaDriverNandWin32::DeviceRead(const TUint aPageAddress, TAny* aBuf, const TUint aLength)
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{
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__PATH_TESTED;
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__NAND_ASSERT(aPageAddress < (iNumBlocks * iNumPagesPerBlock));
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__NAND_ASSERT( (aLength == iNumBytesMain)
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|| (aLength == iNumBytesMain + iNumBytesSpare)
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|| (aLength == iNumBytesSpare) );
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#ifdef __TEST_MEDIA_DRIVER__
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extern TBool gNoPower;
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if(gNoPower)
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return KErrBadPower;
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#endif
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TUint8* readPoint;
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if (aLength == iNumBytesMain)
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{
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__PATH_TESTED;
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readPoint = iBase + (aPageAddress * (iNumBytesMain + iNumBytesSpare));
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}
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else if (aLength == iNumBytesSpare)
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{
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__PATH_TESTED;
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readPoint = iBase + (aPageAddress * (iNumBytesMain + iNumBytesSpare)) + iNumBytesMain;
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}
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else if (aLength == (iNumBytesMain + iNumBytesSpare))
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{
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__PATH_TESTED;
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readPoint = iBase + (aPageAddress * (iNumBytesMain + iNumBytesSpare));
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}
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else
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{
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__PATH_NOT_YET_TESTED;
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return KErrArgument;
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}
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for (TUint i = 0; i < aLength; i++)
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{
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((TUint8*)aBuf)[i] = readPoint[i];
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}
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#ifdef __TEST_MEDIA_DRIVER__
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extern TBool gECCFail;
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if(gECCFail)
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{
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//introduce a random one bit error
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TUint8* p=(TUint8*)aBuf;
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TUint32 key=Kern::Random() % aLength;
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TUint32 shift=1<<(Kern::Random() % 8);
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p[key]=(TUint8)(p[key]&shift?p[key]-shift:p[key]+shift);
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gECCFail=EFalse;
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}
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#endif
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return KErrNone;
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}
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#ifdef __TEST_MEDIA_DRIVER__
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extern "C" TUint32 gbbm_get_sphy_blknum(TUint32, TUint32);
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#endif
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TInt DMediaDriverNandWin32::DeviceWrite(const TUint aPageAddress, TAny* aBuf, const TUint aLength)
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{
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__PATH_TESTED;
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__NAND_ASSERT(aPageAddress < (iNumBlocks * iNumPagesPerBlock));
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__NAND_ASSERT( (aLength == iNumBytesMain)
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|| (aLength == iNumBytesMain + iNumBytesSpare)
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|| (aLength == iNumBytesSpare) );
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#ifdef __TEST_MEDIA_DRIVER__
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extern TBool gNoPower;
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extern TBool gPowerFail;
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extern TUint32 gPowerFailAfter;
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if(gNoPower)
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return KErrBadPower;
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if(gPowerFail)
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{
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if(gPowerFailAfter)
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--gPowerFailAfter;
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else
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{
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gPowerFail=EFalse;
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gNoPower=ETrue;
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extern TUint32 gNotificationType;
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extern TUint32 KNandDbgNotifyPowerDown;
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extern TInt NotifyThread();
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if(gNotificationType==KNandDbgNotifyPowerDown)
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NotifyThread();
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return KErrBadPower;
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}
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}
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#endif
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TUint8* writePoint;
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if (aLength == iNumBytesMain)
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{
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__PATH_TESTED;
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writePoint = iBase + (aPageAddress * (iNumBytesMain + iNumBytesSpare));
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}
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else if (aLength == iNumBytesSpare)
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{
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__PATH_TESTED;
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writePoint = iBase + (aPageAddress * (iNumBytesMain + iNumBytesSpare)) + iNumBytesMain;
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}
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else if (aLength == (iNumBytesMain + iNumBytesSpare))
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{
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__PATH_TESTED;
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writePoint = iBase + (aPageAddress * (iNumBytesMain + iNumBytesSpare));
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}
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else
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{
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__PATH_NOT_YET_TESTED;
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return KErrArgument;
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}
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for (TUint i = 0; i < aLength; i++)
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{
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writePoint[i] &= ((TUint8*)aBuf)[i];
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}
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#ifdef __TEST_MEDIA_DRIVER__
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extern TUint32 gFailAfter;
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extern TUint32 gFailAfterCnt;
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extern TBool gFailureType; //true-WriteFail, false-EraseFail
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extern TBool gFailON;
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if(gFailON && gFailureType)
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{
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if(gFailAfterCnt)
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--gFailAfterCnt;
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else
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{
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extern TUint32 FirstReadPUN;
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extern DMediaDriverNand* gMediaDriverPtr;
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if(gbbm_get_sphy_blknum(0,aPageAddress/gMediaDriverPtr->iNumPagesPerBlock)==FirstReadPUN)
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{
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gFailAfterCnt=gFailAfter;
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//notify failure
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extern TUint32 gNotificationType;
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extern TUint32 KNandDbgNotifyWriteFail;
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extern TInt NotifyThread();
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if(gNotificationType==KNandDbgNotifyWriteFail)
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NotifyThread();
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return KErrCorrupt;
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}
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}
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}
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#endif
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return KErrNone;
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}
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TInt DMediaDriverNandWin32::DeviceErase(const TUint aBlockAddress)
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{
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__PATH_TESTED;
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__NAND_ASSERT(aBlockAddress < iNumBlocks);
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#ifdef __TEST_MEDIA_DRIVER__
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extern TBool gNoPower;
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extern TBool gPowerFail;
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extern TUint32 gPowerFailAfter;
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if(gNoPower)
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return KErrBadPower;
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if(gPowerFail)
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{
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if(gPowerFailAfter)
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--gPowerFailAfter;
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else
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{
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gPowerFail=EFalse;
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gNoPower=ETrue;
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extern TUint32 gNotificationType;
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extern TUint32 KNandDbgNotifyPowerDown;
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extern TInt NotifyThread();
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if(gNotificationType==KNandDbgNotifyPowerDown)
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NotifyThread();
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return KErrBadPower;
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}
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}
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#endif
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const TUint bytesPerEraseBlock = iNumPagesPerBlock * (iNumBytesMain + iNumBytesSpare);
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const TUint erasePos = aBlockAddress * bytesPerEraseBlock;
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TUint8* temp = iBase + erasePos;
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for (TUint i=0; i < bytesPerEraseBlock; i++)
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{
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temp[i]=0xFF;
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}
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return KErrNone;
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}
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TInt DMediaDriverNandWin32::DeviceClose()
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{
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__PATH_NOT_YET_TESTED;
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TBool bRtn=UnmapViewOfFile(iBase);
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sl@0
|
337 |
if(!bRtn)
|
sl@0
|
338 |
{
|
sl@0
|
339 |
__PATH_NOT_YET_TESTED;
|
sl@0
|
340 |
return(MapLastError());
|
sl@0
|
341 |
}
|
sl@0
|
342 |
|
sl@0
|
343 |
bRtn=CloseHandle(iMapping);
|
sl@0
|
344 |
if (!bRtn)
|
sl@0
|
345 |
{
|
sl@0
|
346 |
__PATH_NOT_YET_TESTED;
|
sl@0
|
347 |
return(MapLastError());
|
sl@0
|
348 |
}
|
sl@0
|
349 |
|
sl@0
|
350 |
bRtn=CloseHandle(iFile);
|
sl@0
|
351 |
if (!bRtn)
|
sl@0
|
352 |
{
|
sl@0
|
353 |
__PATH_NOT_YET_TESTED;
|
sl@0
|
354 |
return(MapLastError());
|
sl@0
|
355 |
}
|
sl@0
|
356 |
|
sl@0
|
357 |
return KErrNone;
|
sl@0
|
358 |
}
|
sl@0
|
359 |
|
sl@0
|
360 |
DMediaDriverNandWin32::DMediaDriverNandWin32(TMediaDevice aDevice)
|
sl@0
|
361 |
: DMediaDriverNand(aDevice)
|
sl@0
|
362 |
{
|
sl@0
|
363 |
__PATH_TESTED;
|
sl@0
|
364 |
}
|
sl@0
|
365 |
|
sl@0
|
366 |
DMediaDriverNand* DMediaDriverNand::New(TMediaDevice aDevice)
|
sl@0
|
367 |
{
|
sl@0
|
368 |
__PATH_TESTED;
|
sl@0
|
369 |
return new DMediaDriverNandWin32(aDevice);
|
sl@0
|
370 |
}
|
sl@0
|
371 |
|
sl@0
|
372 |
#ifdef __USE_CUSTOM_ALLOCATOR
|
sl@0
|
373 |
/**
|
sl@0
|
374 |
Concrete implementation of the NAND buffer allocator class
|
sl@0
|
375 |
- Uses Kern::Alloc based allocation
|
sl@0
|
376 |
|
sl@0
|
377 |
@internalTechnology
|
sl@0
|
378 |
*/
|
sl@0
|
379 |
class TNandAllocatorWins : public TNandAllocatorBase
|
sl@0
|
380 |
{
|
sl@0
|
381 |
public:
|
sl@0
|
382 |
virtual TInt AllocateBuffers(SBufferInfo& aBufferInfo); // Initialise the allocator
|
sl@0
|
383 |
};
|
sl@0
|
384 |
|
sl@0
|
385 |
/** Concrete implementation of the NAND buffer allocator class
|
sl@0
|
386 |
Creates a customallocator (using Kern::Alloc)
|
sl@0
|
387 |
|
sl@0
|
388 |
@param aBufferInfo A reference to a SBufferInfo containing the details of the PSL allocated buffer
|
sl@0
|
389 |
@return Standard Symbian OS error code
|
sl@0
|
390 |
@see TNandAllocatorBase::SCellInfo
|
sl@0
|
391 |
*/
|
sl@0
|
392 |
TInt TNandAllocatorWins::AllocateBuffers(SBufferInfo& aBufferInfo)
|
sl@0
|
393 |
{
|
sl@0
|
394 |
const TUint32 KNumBuffers = 4;
|
sl@0
|
395 |
const TUint32 KMaxNumBytesSpare = 16;
|
sl@0
|
396 |
const TUint32 KMaxNumBytesMain = 512;
|
sl@0
|
397 |
const TUint32 KMaxNumBytesPage = KMaxNumBytesSpare + KMaxNumBytesMain;
|
sl@0
|
398 |
|
sl@0
|
399 |
aBufferInfo.iBytesPerSpareArray = KMaxNumBytesSpare;
|
sl@0
|
400 |
aBufferInfo.iBytesPerMainArray = KMaxNumBytesMain;
|
sl@0
|
401 |
aBufferInfo.iBufferCount = KNumBuffers;
|
sl@0
|
402 |
|
sl@0
|
403 |
aBufferInfo.iBufferP = reinterpret_cast<TUint8*>(Kern::Alloc(KMaxNumBytesPage * KNumBuffers));
|
sl@0
|
404 |
|
sl@0
|
405 |
return(aBufferInfo.iBufferP ? KErrNone : KErrNoMemory);
|
sl@0
|
406 |
}
|
sl@0
|
407 |
|
sl@0
|
408 |
/**
|
sl@0
|
409 |
Create an allocator suitable for use on this target
|
sl@0
|
410 |
@internalComponent
|
sl@0
|
411 |
*/
|
sl@0
|
412 |
TNandAllocatorBase* DMediaDriverNand::ExtensionInitAllocator()
|
sl@0
|
413 |
{
|
sl@0
|
414 |
return new TNandAllocatorWins;
|
sl@0
|
415 |
}
|
sl@0
|
416 |
#endif
|