1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 #ifndef __FAT_IMAGE_GENERATER_HEADER__

    18 #define __FAT_IMAGE_GENERATER_HEADER__

    19 

    20 #include "fatdefines.h"

    21 

    22 #include <iostream>

    23 #include <list>

    24 #include <fstream>

    25 using namespace std ;

    26 const unsigned int KBufferedIOBytes = 0x800000 ; // 8M 

    27 const unsigned int KMaxClusterBytes = 0x8000; // 32K

    28 enum TSupportedFatType {

    29 	EFatUnknown = 0,

    30 	EFat16 = 1,

    31 	EFat32 = 2

    32 };

    33  

    34 class TFSNode;

    35 class TFatCluster;

    36 typedef list<TFatCluster*> PFatClusterList ;

    37 typedef list<TFatCluster*>::iterator Interator ;

    38 

    39 class TFatImgGenerator

    40 {

    41 public :

    42 	//The constructor ,

    43 	//a TFatImgGenerator is created and initialized,

    44 	//if the parameters breaks the FAT specification,

    45 	// then iType is set to EFatUnknown and thus

    46 	// IsValid return false

    47 	TFatImgGenerator(TSupportedFatType aType , ConfigurableFatAttributes& aAttr  );

    48 	~TFatImgGenerator();

    49 	inline bool IsValid() const { return (EFatUnknown != iType);}

    50 	

    51 	//Create the FAT image, 

    52 	//If FAT image is not valid, or error accurs, return false

    53 	bool Execute(TFSNode* aRootDir , const char* aOutputFile);

    54 protected :

    55 	void InitAsFat16(TUint32 aTotalSectors,TUint8 aSecPerClus,TUint16 aBytsPerSec);

    56 	void InitAsFat32(TUint32 aTotalSectors,TUint8 aSecPerClus,TUint16 aBytsPerSec);

    57 	bool PrepareClusters(TUint& aNextClusIndex,TFSNode* aNode);

    58 	TSupportedFatType iType ;

    59 	char* iFatTable ; 

    60 	TUint iFatTableBytes ;  

    61 	TUint iTotalClusters ;	

    62 	TUint iBytsPerClus ;

    63 	TFATBootSector iBootSector ;

    64 	TFAT32BSExt iFat32Ext ;

    65 	TFATHeader iFatHeader ;	

    66 	PFatClusterList iDataClusters ;

    67 };

    68 

    69 

    70 #endif