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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
1 // Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies). |
2 // All rights reserved. |
2 // All rights reserved. |
3 // This component and the accompanying materials are made available |
3 // This component and the accompanying materials are made available |
4 // under the terms of the License "Eclipse Public License v1.0" |
4 // under the terms of the License "Eclipse Public License v1.0" |
5 // which accompanies this distribution, and is available |
5 // which accompanies this distribution, and is available |
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
24 |
24 |
25 |
25 |
26 class TMsDataMemMap |
26 class TMsDataMemMap |
27 { |
27 { |
28 public: |
28 public: |
29 static const TInt KSectorSize = 0x200; // 512 |
|
30 static const TInt KFormatSectorShift = 9; |
|
31 |
29 |
32 TMsDataMemMap(); |
30 TMsDataMemMap(); |
33 void Reset(); |
31 void Reset(); |
34 |
32 |
35 void InitDataArea(TUint32 aFirstDataSector, TUint32 aNumSectors); |
33 void InitDataArea(TUint32 aFirstDataSector, TUint32 aNumSectors, TUint32 aSectorSize); |
36 void InitDataArea(TUint64 aSize); |
34 void InitDataArea(TUint64 aSize); |
37 |
35 |
38 TInt BlockLength() const; |
36 TUint32 BlockLength() const; |
39 TUint64 DataSize() const; |
37 TUint64 DataSize() const; |
40 |
38 |
41 TInt64 GetDataPos(TInt64 aPos) const; |
39 TInt64 GetDataPos(TInt64 aPos) const; |
42 TInt TranslateDataPos(TInt64& aPos, TInt& aLength) const; |
40 TInt TranslateDataPos(TInt64& aPos, TInt& aLength) const; |
43 TInt CheckBlockInRange(TInt64& aPos, TInt aLength) const; |
41 TInt CheckBlockInRange(TInt64& aPos, TInt aLength) const; |
|
42 TInt FormatSectorShift() const; |
44 |
43 |
45 private: |
44 private: |
46 // Whole media |
45 // Whole media |
47 // Size |
46 // Size |
48 TUint64 iSize; |
47 TUint64 iSize; |
49 |
48 |
50 // Data Area |
49 // Data Area |
51 // Offset |
50 // Offset |
52 TInt64 iDataOffset; |
51 TInt64 iDataOffset; |
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52 |
|
53 // Sector Size (Media Block Size) |
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54 TUint32 iSectorSize; |
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55 |
|
56 // Sector-size dependant |
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57 TInt iFormatSectorShift; |
53 }; |
58 }; |
54 |
59 |
55 #include "tmsmemmap.inl" |
60 #include "tmsmemmap.inl" |
56 |
61 |
57 #endif // TMSMEMMAP_H |
62 #endif // TMSMEMMAP_H |