kernel/eka/drivers/medmmc/toc.h
author hgs
Mon, 12 Jul 2010 14:24:01 +0100
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// Copyright (c) 2010 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 the License "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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// TOC Partition Management for Embedded MMC devices
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// 
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//
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#ifndef __EMMC_TOC_H__
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#define __EMMC_TOC_H__
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#include <emmcptn.h>
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// TOC item
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const TUint  KMaxItemNameLen = 12;
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struct STocItem
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    {
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    TUint32 iStart;
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    TUint32 iSize;
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    TUint32 iFlags;
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    TUint32 iAlign;
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    TUint32 iLoadAddress;
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    TText8  iFileName[KMaxItemNameLen];
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	};
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//- Constants ---------------------------------------------------------------
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const TUint32 KTocStartSector       = 1280; // TOC starts from 0xA0000 / 0x200
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const TText8  KTocRofsName[]        = "SOS-ROFS";
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const TText8  KTocRofsName1[]       = "SOS+ROFS"; 
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const TText8  KTocRofsExtName[]     = "SOS-ROFX";
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const TText8  KTocRofsGeneric[]     = "ROFS";  
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const TText8  KTocRomGeneric[]      = "SOS+CORE";  
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const TText8  KTocCps[]             = "SOS-CPS";
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const TText8  KTocRofsExtGeneric[]  = "ROFX";    
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const TText8  KTocSwap[]            = "SOS-SWAP";
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const TText8  KTocUserName[]        = "SOS-USER";
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const TText8  KTocCrashLog[]        = "SOS-CRASH";
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const TText8  KTocToc[]             = "TOC";
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const TText8  KTocSosToc[]          = "SOS-TOC";
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const TUint8  KMaxNbrOfTocItems     = 16;
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const TUint8  KXMaxNbrOfTocItems    = 16;
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const TUint32 KEndOfToc             = 0xFFFFFFFFUL;
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const TText8  KTocRofs1Generic[]    = "ROFS1";
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const TText8  KTocRofs2Generic[]    = "ROFS2";
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const TText8  KTocRofs3Generic[]    = "ROFS3"; 
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const TText8  KTocRofs4Generic[]    = "ROFS4";
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const TText8  KTocRofs5Generic[]    = "ROFS5";
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const TText8  KTocRofs6Generic[]    = "ROFS6";
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const TUint   KNoOfROFSPartitions   = 6;
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const TInt    KSectorShift          = 9;
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/**
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TOC access for kernel side clients.
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*/
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class Toc
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    {
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    public:
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        /**
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         *  Search entry in TOC with aName as part of ItemName.
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         *  @return KErrNone if successful 
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         */
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        TInt GetItemByName(const TText8* aName, STocItem& aItem);
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	public:
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		/**	Array for keep whole TOC */
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		STocItem iTOC[KMaxNbrOfTocItems];
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		/** Offset of TOC from beginning*/
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		TUint32  iTocStartSector;
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    };
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#endif // __EMMC_TOC_H__
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