/*

* Copyright (c) 2010 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: 

*

*/

#ifndef __FAT_DEFINES_HEADER__

#define __FAT_DEFINES_HEADER__

#include <e32std.h>

struct TFATBootSector {

	TUint8 BS_jmpBoot[3];

	TUint8 BS_OEMName[8];

	TUint8 BPB_BytsPerSec[2];

	TUint8 BPB_SecPerClus;

	TUint8 BPB_RsvdSecCnt[2];

	TUint8 BPB_NumFATs;

	TUint8 BPB_RootEntCnt[2];

	TUint8 BPB_TotSec16[2];

	TUint8 BPB_Media;

	TUint8 BPB_FATSz16[2];

	TUint8 BPB_SecPerTrk[2];

	TUint8 BPB_NumHeads[2];

	TUint8 BPB_HiddSec[4];

	TUint8 BPB_TotSec32[4];	

};

struct TFAT32BSExt {

	TUint8 BPB_FATSz32[4];

	TUint8 BPB_ExtFlags[2];

	TUint8 BPB_FSVer[2];

	TUint8 BPB_RootClus[4];

	TUint8 BPB_FSInfo[2];

	TUint8 BPB_BkBootSec[2];

	TUint8 BPB_Reserved[12];

};

struct TFATHeader {

	TUint8 BS_DrvNum ;

	TUint8 BS_Reserved1;

	TUint8 BS_BootSig;

	TUint8 BS_VolID[4];

	TUint8 BS_VolLab[11];

	TUint8 BS_FilSysType[8];

};

struct TFAT32FSInfoSector {

	TUint8 FSI_LeadSig[4];

	TUint8 FSI_Reserved1[480];

	TUint8 FSI_StrucSig[4];

	TUint8 FSI_Free_Count[4];

	TUint8 FSI_Nxt_Free[4];

	TUint8 FSI_Reserved2[12];

	TUint8 FSI_TrailSig[4];

};

struct TShortDirEntry {

    TUint8 DIR_Name[11];

    TUint8 DIR_Attr ;

    TUint8 DIR_NTRes ;

    TUint8 DIR_CrtTimeTenth ;

    TUint8 DIR_CrtTime[2] ;

    TUint8 DIR_CrtDate[2] ;

    TUint8 DIR_LstAccDate[2] ;

    TUint8 DIR_FstClusHI[2] ;

    TUint8 DIR_WrtTime[2] ;

    TUint8 DIR_WrtDate[2];

    TUint8 DIR_FstClusLO[2];

    TUint8 DIR_FileSize[4] ;    

};

struct TLongDirEntry {

    TUint8 LDIR_Ord ;

    TUint8 LDIR_Name1[10] ;

    TUint8 LDIR_Attr ;

    TUint8 LDIR_Type ;

    TUint8 LDIR_Chksum ;

    TUint8 LDIR_Name2[12] ;

    TUint8 LDIR_FstClusLO[2] ; 

    TUint8 LDIR_Name3[4] ;

};

const TUint8 ATTR_READ_ONLY = 0x01 ;

const TUint8 ATTR_HIDDEN = 0x02;

const TUint8 ATTR_SYSTEM = 0x04;

const TUint8 ATTR_VOLUME_ID = 0x08;

const TUint8 ATTR_DIRECTORY = 0x10;

const TUint8 ATTR_ARCHIVE = 0x20;

const TUint8 ATTR_LONG_NAME = ATTR_READ_ONLY | ATTR_HIDDEN | ATTR_SYSTEM | ATTR_VOLUME_ID;

//Time format, should be written as a integer in FAT image

struct FatTime

{

	TUint16 Seconds:5;

	TUint16 Minute:6;

	TUint16 Hour:5;

};

//Date format, should be written as a integer in FAT image

struct FatDate

{

	TUint16 Day:5;

	TUint16 Month:4;

	TUint16 Year:7;

};

//This union convention used to convert bit fields into integer

union TDateInteger

{

	FatDate iCurrentDate;

	TUint16 iImageDate;

};

//This union convention used to convert bit fields into integer

union TTimeInteger

{	

	FatTime iCurrentTime;

	TUint16 iImageTime;

};

struct ConfigurableFatAttributes

{

    char iDriveVolumeLabel[12];

    TInt64 iImageSize ;

    TUint16 iDriveSectorSize;

    TUint32 iDriveClusterSize;

    TUint8 iDriveNoOfFATs;    

    ConfigurableFatAttributes():iImageSize(0),iDriveSectorSize(512),iDriveClusterSize(0),iDriveNoOfFATs(2){

        memcpy(iDriveVolumeLabel,"NO NAME    \0",12);

    }

};

#endif