--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/include/drivers/crashflashnand.h	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,120 @@
+// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32\include\drivers\crashflashnand.h
+// 
+// WARNING: This file contains some APIs which are internal and are subject
+//          to change without notice. Such APIs should therefore not be used
+//          outside the Kernel and Hardware Services package.
+//
+
+#ifndef __CRASHFLASHNAND_H__
+#define __CRASHFLASHNAND_H__
+#include <crashflash.h>
+
+class TPib;
+class TPibExtension;
+
+/**
+The maximum number of bytes in a nand flash main array
+@internalTechnology
+*/
+const TUint KCFNandMaxBytesMain = 512;
+
+/**
+An implementation of the CrashFlash interface for nand flash.
+@internalTechnology
+*/
+class CrashFlashNand : public CrashFlash
+	{
+public:
+	//From CrashFlash
+	virtual TInt Initialise();
+	virtual void StartTransaction();
+	virtual void EndTransaction();
+	virtual void Write(const TDesC8& aDes);
+	virtual void WriteSignature(const TDesC8& aDes);
+	virtual void Read(TDes8& aDes);
+	virtual void SetReadPos(TUint aPos);
+	virtual void SetWritePos(const TUint aPos);
+	virtual void EraseLogArea();
+	virtual void EraseFlashBlock(const TUint aBlock);
+	virtual TUint BytesWritten();
+#ifdef _CRASHLOG_COMPR	
+	virtual TUint GetOutputLimit(void);
+	virtual TUint GetLogOffset(void);
+#endif
+
+public:
+	/** @publishedPartner
+	@released */
+	virtual TInt GetDeviceId(TUint8& aDeviceId, TUint8& aManufacturerId)=0;
+	/** @publishedPartner
+	@released */
+	virtual TInt DeviceRead(const TUint aPageAddress, TAny* aBuf, const TUint aLength)=0;
+	/** @publishedPartner
+	@released */
+	virtual TInt DeviceWrite(const TUint aPageAddress, TAny* aBuf, const TUint aLength)=0;
+	/** @publishedPartner
+	@released */
+	virtual TInt DeviceErase(const TUint aBlockAddress)=0;
+public:
+	/** @publishedPartner
+	@released */
+	TUint iNumPagesPerBlock;
+	/** @publishedPartner
+	@released */
+	TUint iNumBytesMain;
+	/** @publishedPartner
+	@released */
+	TUint iNumBytesSpare;
+	/** @publishedPartner
+	@released */
+	TUint iNumReservoirBlocks;
+	/** @publishedPartner
+	@released */
+	TUint iNumBlocks;
+	/** @publishedPartner
+	@released */
+	TUint iNumBytesPage;
+
+protected:
+	/** @publishedPartner
+	@released */
+	virtual TInt VariantInitialise()=0;
+
+private:
+	TInt InitialiseFlashParameters(const TUint8 aDevId, const TUint8 aManId);
+	TInt ReadPib(TPib& aPib, TPibExtension& aPibExtension, TUint& aLastGoodBlock);
+	TInt ParsePib(TPib& aPib, TPibExtension& aPibExt);
+	void DoWriteRead();	
+	void DoWrite();
+	void DoRead();
+private:
+	TBool iIs16Bit;
+	TUint8 iLogWordSize;
+
+	TUint iCrashLogStartBlock;
+	TUint iNumCrashLogBlocks;
+
+	TUint iWriteBufIndex;
+	TUint iReadBufIndex;
+	TUint iWritePageIndex;
+	TUint iReadPageIndex;
+	TUint iWriteTotal;
+
+	TUint8 iWriteBuf[KCFNandMaxBytesMain];
+	TUint8 iReadBuf[KCFNandMaxBytesMain];
+	};
+
+#endif