Symaptic: os/kernelhwsrv/kernel/eka/include/drivers/crashflashnand.h@260cb5ec6c19

     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32\include\drivers\crashflashnand.h

    15 //

    16 // WARNING: This file contains some APIs which are internal and are subject

    17 //          to change without notice. Such APIs should therefore not be used

    18 //          outside the Kernel and Hardware Services package.

    19 //

    21 #ifndef __CRASHFLASHNAND_H__

    22 #define __CRASHFLASHNAND_H__

    23 #include <crashflash.h>

    25 class TPib;

    26 class TPibExtension;

    28 /**

    29 The maximum number of bytes in a nand flash main array

    30 @internalTechnology

    31 */

    32 const TUint KCFNandMaxBytesMain = 512;

    34 /**

    35 An implementation of the CrashFlash interface for nand flash.

    36 @internalTechnology

    37 */

    38 class CrashFlashNand : public CrashFlash

    39 	{

    40 public:

    41 	//From CrashFlash

    42 	virtual TInt Initialise();

    43 	virtual void StartTransaction();

    44 	virtual void EndTransaction();

    45 	virtual void Write(const TDesC8& aDes);

    46 	virtual void WriteSignature(const TDesC8& aDes);

    47 	virtual void Read(TDes8& aDes);

    48 	virtual void SetReadPos(TUint aPos);

    49 	virtual void SetWritePos(const TUint aPos);

    50 	virtual void EraseLogArea();

    51 	virtual void EraseFlashBlock(const TUint aBlock);

    52 	virtual TUint BytesWritten();

    53 #ifdef _CRASHLOG_COMPR

    54 	virtual TUint GetOutputLimit(void);

    55 	virtual TUint GetLogOffset(void);

    56 #endif

    58 public:

    59 	/** @publishedPartner

    60 	@released */

    61 	virtual TInt GetDeviceId(TUint8& aDeviceId, TUint8& aManufacturerId)=0;

    62 	/** @publishedPartner

    63 	@released */

    64 	virtual TInt DeviceRead(const TUint aPageAddress, TAny* aBuf, const TUint aLength)=0;

    65 	/** @publishedPartner

    66 	@released */

    67 	virtual TInt DeviceWrite(const TUint aPageAddress, TAny* aBuf, const TUint aLength)=0;

    68 	/** @publishedPartner

    69 	@released */

    70 	virtual TInt DeviceErase(const TUint aBlockAddress)=0;

    71 public:

    72 	/** @publishedPartner

    73 	@released */

    74 	TUint iNumPagesPerBlock;

    75 	/** @publishedPartner

    76 	@released */

    77 	TUint iNumBytesMain;

    78 	/** @publishedPartner

    79 	@released */

    80 	TUint iNumBytesSpare;

    81 	/** @publishedPartner

    82 	@released */

    83 	TUint iNumReservoirBlocks;

    84 	/** @publishedPartner

    85 	@released */

    86 	TUint iNumBlocks;

    87 	/** @publishedPartner

    88 	@released */

    89 	TUint iNumBytesPage;

    91 protected:

    92 	/** @publishedPartner

    93 	@released */

    94 	virtual TInt VariantInitialise()=0;

    96 private:

    97 	TInt InitialiseFlashParameters(const TUint8 aDevId, const TUint8 aManId);

    98 	TInt ReadPib(TPib& aPib, TPibExtension& aPibExtension, TUint& aLastGoodBlock);

    99 	TInt ParsePib(TPib& aPib, TPibExtension& aPibExt);

   100 	void DoWriteRead();

   101 	void DoWrite();

   102 	void DoRead();

   103 private:

   104 	TBool iIs16Bit;

   105 	TUint8 iLogWordSize;

   107 	TUint iCrashLogStartBlock;

   108 	TUint iNumCrashLogBlocks;

   110 	TUint iWriteBufIndex;

   111 	TUint iReadBufIndex;

   112 	TUint iWritePageIndex;

   113 	TUint iReadPageIndex;

   114 	TUint iWriteTotal;

   116 	TUint8 iWriteBuf[KCFNandMaxBytesMain];

   117 	TUint8 iReadBuf[KCFNandMaxBytesMain];

   118 	};

   120 #endif

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--