1 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Partition Management for Embedded MMC devices |
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15 // |
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16 // |
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17 |
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18 #include "emmcptn.h" |
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19 |
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20 #define ST_FLASHER |
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21 #define BGAHSMMC_PI_STR_SIZE sizeof( BGAHSMMC_PI_STR ) |
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22 |
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23 //- Constants --------------------------------------------------------------- |
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24 |
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25 const TUint8 KMaxNbrOfTocItems = 16; //condition false in decode partition info function 32; //should be 16 (32*16=512) |
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26 const TUint8 KXMaxNbrOfTocItems = 16; |
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27 const TUint32 KEndOfToc = 0xFFFFFFFFUL; |
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28 const TInt KMaxItemNameLen = 12; |
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29 |
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30 const TUint32 KMegaByte = 1024 * 1024; |
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31 const TUint32 KEraseStepSize = 4 * KMegaByte; |
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32 |
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33 // for Emmc(S) min erase is 256KB for Emmc(T) min erase is 512KB |
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34 const TUint32 KEraseMinSize = 512 * 1024; |
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35 const TInt KDiskSectorSize =512; |
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36 const TInt KDiskSectorShift =9; |
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37 |
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38 // UnistoreII definitions |
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39 #define VOLNUM 0 |
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40 #define SECTOR_SIZE 512 |
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41 #define TWO_SECTOR_SIZE 1024 |
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42 |
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43 struct STocItem |
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44 { |
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45 TUint32 iByteStartAddress; |
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46 TUint32 iByteSize; |
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47 TUint32 iFlags; |
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48 TUint32 iAlign; |
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49 TUint32 iLoadAddress; |
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50 TText8 iFileName[KMaxItemNameLen]; |
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51 }; |
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52 |
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53 |
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54 class Toc |
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55 { |
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56 public: |
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57 TInt Init(); |
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58 TInt GetItem(const TText8* aItemName, STocItem& aItem); |
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59 TInt GetItemEx(const TText8* aName, STocItem& aItem); |
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60 public: |
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61 STocItem iTOC[KMaxNbrOfTocItems]; |
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62 STocItem iEmmcPartitionTable[4]; |
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63 TUint32 iTocStartSector; |
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64 TUint64 iUserAreaInBytes; |
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65 TInt iPartitionCount; |
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66 TBool iEMMCPtnUpdate; |
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67 |
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68 #if defined(_VERSION_INFO) |
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69 TUint32 iVersionInfoItems; |
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70 TVersionInfoItem iVersionInfo[KMaxSectionItems]; |
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71 #endif |
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72 |
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73 private: |
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74 TInt GetItemX(const TText8* aItemName, STocItem& aItem); |
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75 |
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76 }; |
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77 |
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78 |
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79 class DLegacyEMMCPartitionInfo : public DEMMCPartitionInfo |
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80 { |
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81 public: |
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82 DLegacyEMMCPartitionInfo(); |
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83 ~DLegacyEMMCPartitionInfo(); |
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84 Toc *iTocPtr; |
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85 |
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86 |
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87 public: |
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88 virtual TInt Initialise(DMediaDriver* aDriver); |
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89 virtual TInt PartitionInfo(TPartitionInfo& anInfo, const TMMCCallBack& aCallBack); |
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90 virtual TInt PartitionCaps(TLocDrv& aDrive, TDes8& aInfo); |
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91 |
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92 protected: |
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93 void SetPartitionEntry(TPartitionEntry* aEntry, TUint aFirstSector, TUint aNumSectors); |
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94 |
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95 private: |
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96 static void SessionEndCallBack(TAny* aSelf); |
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97 void DoSessionEndCallBack(); |
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98 virtual TInt DecodePartitionInfo(); |
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99 |
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100 protected: |
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101 DMediaDriver* iDriver; |
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102 TPartitionInfo* iPartitionInfo; |
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103 TMMCCallBack iSessionEndCallBack; |
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104 TMMCCallBack iCallBack; // Where to report the PartitionInfo completion |
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105 DMMCSession* iSession; |
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106 TMMCard* iCard; |
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107 TUint8* iIntBuf; |
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108 }; |
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109 |
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110 DLegacyEMMCPartitionInfo::DLegacyEMMCPartitionInfo() |
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111 : iSessionEndCallBack(DLegacyEMMCPartitionInfo::SessionEndCallBack, this) |
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112 { |
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113 } |
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114 |
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115 DLegacyEMMCPartitionInfo::~DLegacyEMMCPartitionInfo() |
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116 { |
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117 delete iSession; |
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118 } |
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119 |
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120 TInt DLegacyEMMCPartitionInfo::Initialise(DMediaDriver* aDriver) |
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121 { |
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122 iDriver = aDriver; |
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123 |
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124 DMMCSocket* socket = ((DMMCSocket*)((DPBusPrimaryMedia*)(iDriver->iPrimaryMedia))->iSocket); |
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125 if(socket == NULL) |
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126 return(KErrNoMemory); |
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127 |
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128 DMMCStack* stack = socket->Stack(0); |
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129 iCard = stack->CardP(((DPBusPrimaryMedia*)(iDriver->iPrimaryMedia))->iSlotNumber); |
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130 |
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131 iSession = stack->AllocSession(iSessionEndCallBack); |
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132 if (iSession == NULL) |
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133 return(KErrNoMemory); |
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134 |
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135 iSession->SetStack(stack); |
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136 iSession->SetCard(iCard); |
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137 |
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138 // this gets used before any access |
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139 TInt bufLen, minorBufLen; |
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140 stack->BufferInfo(iIntBuf, bufLen, minorBufLen); |
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141 |
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142 return(KErrNone); |
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143 } |
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144 |
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145 TInt DLegacyEMMCPartitionInfo::PartitionInfo(TPartitionInfo& anInfo, const TMMCCallBack& aCallBack) |
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146 { |
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147 iPartitionInfo = &anInfo; |
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148 iCallBack = aCallBack; |
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149 // If media driver is persistent (see EMediaDriverPersistent), |
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150 // the card may have changed since last power down, so reset CID |
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151 iSession->SetCard(iCard); |
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152 |
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153 TUint32 TocOffset =0; //TOC is on first Block |
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154 |
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155 #ifndef ST_FLASHER |
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156 TocOffset = 1280; //TOC mapped 0x000A0000 bytes offset i.e. 1280 blocks |
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157 #endif //!ST_FLASHER |
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158 |
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159 iSession->SetupCIMReadBlock(TocOffset, iIntBuf); // aBlocks = 1 |
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160 |
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161 TInt r = iDriver->InCritical(); |
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162 if (r == KErrNone) |
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163 r = iSession->Engage(); |
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164 |
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165 if(r != KErrNone) |
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166 iDriver->EndInCritical(); |
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167 |
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168 return(r); |
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169 } |
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170 |
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171 TInt DLegacyEMMCPartitionInfo::PartitionCaps(TLocDrv& aDrive, TDes8& aInfo) |
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172 { |
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173 TLocalDriveCapsV6Buf& Info = static_cast< TLocalDriveCapsV6Buf&> (aInfo); |
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174 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>iPartitionType=%d",aDrive.iPartitionType)); |
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175 |
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176 |
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177 if (aDrive.iPartitionType == KPartitionTypeRofs) |
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178 { |
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179 __KTRACE_OPT(KPBUSDRV,Kern::Printf("eMMC proto: Caps for ROFS,drive NO =%d",aDrive.iDriveNumber)); |
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180 |
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181 Info().iType = EMediaHardDisk; |
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182 Info().iDriveAtt = KDriveAttLocal | KDriveAttInternal; |
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183 Info().iFileSystemId = KDriveFileSysROFS; |
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184 Info().iPartitionType = KPartitionTypeRofs; |
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185 Info().iMediaAtt |= KMediaAttWriteProtected; |
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186 Info().iSize = TUint32(iTocPtr->iEmmcPartitionTable[1].iByteSize); |
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187 |
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188 } |
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189 else if (aDrive.iPartitionType == KPartitionTypeEmpty) //for CoreOS |
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190 { |
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191 |
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192 __KTRACE_OPT(KPBUSDRV,Kern::Printf("eMMC proto: Caps for EmptyP,drive NO =%d",aDrive.iDriveNumber)); |
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193 |
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194 Info().iType = EMediaHardDisk; |
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195 Info().iDriveAtt = KDriveAttLocal | KDriveAttInternal; |
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196 Info().iFileSystemId = KDriveFileNone; |
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197 Info().iPartitionType = KPartitionTypeEmpty; |
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198 Info().iMediaAtt |= KMediaAttWriteProtected; |
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199 Info().iSize = iTocPtr->iEmmcPartitionTable[0].iByteSize; |
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200 |
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201 } |
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202 |
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203 else if((aDrive.iDriveNumber == 2) && (!iTocPtr->iEMMCPtnUpdate)) |
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204 { |
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205 __KTRACE_OPT(KPBUSDRV,Kern::Printf("eMMC proto: Caps iDriveNumber =%d",aDrive.iDriveNumber)); |
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206 |
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207 |
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208 Info().iType = EMediaHardDisk; |
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209 Info().iDriveAtt |= KDriveAttLocal | KDriveAttInternal ; |
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210 |
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211 Info().iFileSystemId = KDriveFileSysFAT; |
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212 Info().iPartitionType = KPartitionTypeWin95FAT32; |
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213 Info().iMediaAtt |= KMediaAttFormattable; |
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214 Info().iSize = TUint64(iTocPtr->iUserAreaInBytes); |
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215 } |
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216 |
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217 // is this query for the swap partition ? |
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218 if (aDrive.iPartitionType == KPartitionTypePagedData) |
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219 { |
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220 Info().iFileSystemId = KDriveFileNone; |
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221 Info().iDriveAtt|= KDriveAttHidden; |
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222 } |
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223 |
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224 // is this query for the ROFS partition ? |
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225 if (aDrive.iPartitionType == KPartitionTypeRofs) |
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226 { |
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227 Info().iFileSystemId = KDriveFileSysROFS; |
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228 Info().iMediaAtt&= ~KMediaAttFormattable; |
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229 Info().iMediaAtt|= KMediaAttWriteProtected; |
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230 } |
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231 |
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232 // is this query for the ROM partition ? |
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233 if (aDrive.iPartitionType == KPartitionTypeROM) |
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234 { |
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235 Info().iFileSystemId = KDriveFileNone; |
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236 Info().iMediaAtt&= ~KMediaAttFormattable; |
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237 Info().iMediaAtt|= KMediaAttWriteProtected; |
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238 } |
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239 |
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240 return KErrNone; |
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241 } |
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242 |
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243 void DLegacyEMMCPartitionInfo::SessionEndCallBack(TAny* aSelf) |
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244 { |
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245 DLegacyEMMCPartitionInfo& self = *static_cast<DLegacyEMMCPartitionInfo*>(aSelf); |
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246 self.DoSessionEndCallBack(); |
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247 } |
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248 |
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249 void DLegacyEMMCPartitionInfo::DoSessionEndCallBack() |
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250 { |
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251 iDriver->EndInCritical(); |
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252 |
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253 TInt r = iSession->EpocErrorCode(); |
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254 |
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255 if (r == KErrNone) |
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256 r = DecodePartitionInfo(); |
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257 |
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258 iDriver->PartitionInfoComplete(r == KErrNone ? r : KErrNotReady); |
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259 } |
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260 |
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261 TInt DLegacyEMMCPartitionInfo::DecodePartitionInfo() |
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262 // |
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263 // decode partition info that was read into internal buffer |
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264 // |
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265 { |
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266 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>emcptn:DecodePartitionInfo")); |
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267 |
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268 TUint partitionCount=iPartitionInfo->iPartitionCount=0; |
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269 TInt defaultPartitionNumber=-1; |
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270 TMBRPartitionEntry* pe; |
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271 const TUint KMBRFirstPartitionOffsetAligned = KMBRFirstPartitionOffset & ~3; |
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272 TInt i; |
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273 iTocPtr = reinterpret_cast<Toc*>(iIntBuf); |
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274 iTocPtr->iEMMCPtnUpdate = EFalse; |
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275 iTocPtr->iPartitionCount = 0; |
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276 |
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277 STocItem item; |
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278 |
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279 #ifdef ST_FLASHER |
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280 for (TUint8 nCnt = 0; nCnt < 5; nCnt++) |
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281 #else |
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282 for (TUint8 nCnt = 0; nCnt < KMaxNbrOfTocItems; nCnt++) |
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283 #endif //ST_FLASHER |
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284 { |
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285 |
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286 #ifdef ST_FLASHER |
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287 if((iTocPtr->GetItemEx((TText8*)"NORMAL", item) == KErrNone) ||(iTocPtr->GetItemEx((TText8*)"X-LOADER", item)== KErrNone)) |
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288 #else |
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289 if(iTocPtr->GetItemEx("SOS+CORE", item)== KErrNone) |
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290 #endif //ST_FLASHER |
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291 { |
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292 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>Valid TOC/PIB found")); |
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293 } |
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294 else |
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295 { |
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296 __KTRACE_OPT(KPBUSDRV,Kern::Printf("ERROR eMMC proto: No Valid TOC/PIB structure !")); |
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297 iTocPtr->iEMMCPtnUpdate = ETrue; |
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298 } |
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299 } |
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300 |
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301 if(iTocPtr) |
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302 { |
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303 if(!iTocPtr->iEMMCPtnUpdate) |
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304 { |
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305 |
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306 TInt ret = KErrNone; |
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307 |
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308 //SOS+CORE/NORMAL=0,SOS+ROFS1=1,SOS+ROFS2=2,SOS-USER/PRODUCTION=3 |
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309 |
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310 #ifdef ST_FLASHER |
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311 |
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312 |
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313 |
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314 ret = iTocPtr->GetItemEx((TText8*)"NORMAL", item); |
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315 #else |
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316 ret = iTocPtr->GetItemEx("SOS+CORE", item); |
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317 #endif //ST_FLASHER |
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318 |
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319 if(ret == KErrNone) |
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320 { |
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321 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>SOS+CORE/NORMAL partition found")); |
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322 //SOS+CORE Partition |
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323 iTocPtr->iEmmcPartitionTable[0] = item; |
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324 } |
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325 else |
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326 { |
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327 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>ERROR SOS+CORE/NORMAL partition NOT found")); |
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328 } |
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329 |
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330 //In ST flasher ROFS partitions are not define |
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331 #ifndef ST_FLASHER |
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332 ret = iTocPtr->GetItemEx("SOS+ROFS1", item); |
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333 if(ret == KErrNone) |
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334 { |
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335 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>SOS+ROFS1 partition found")); |
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336 //Rofs Partition |
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337 iTocPtr->iEmmcPartitionTable[1] = item; |
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338 } |
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339 else |
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340 { |
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341 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>ERROR SOS+ROFS1 partition NOT found")); |
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342 } |
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343 |
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344 // In ST flasher consider : Normal -> coreos, ADL -> Rofs, No Rofs_Ext,Production -> User |
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345 |
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346 ret = iTocPtr->GetItemEx("SOS+ROFS2", item); |
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347 if(ret == KErrNone) |
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348 { |
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349 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>SOS+ROFS2 partition found")); |
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350 //ROFX Partition |
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351 iTocPtr->iEmmcPartitionTable[2] = item; |
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352 } |
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353 else |
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354 { |
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355 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>ERROR SOS+ROFS2 partition NOT found")); |
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356 } |
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357 #endif //ST_FLASHER |
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358 |
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359 #ifdef ST_FLASHER |
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360 //USER partition is => Start address of PRODUCTION + Size of PRODUCTION |
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361 ret = iTocPtr->GetItemEx((TText8*)"PRODUCTION", item); |
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362 #else |
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363 ret = iTocPtr->GetItemEx("SOS-USER", item); |
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364 #endif //ST_FLASHER |
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365 if(ret == KErrNone) |
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366 { |
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367 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>SOS-USER partition found")); |
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368 //SOS-USER Partition |
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369 iTocPtr->iEmmcPartitionTable[3] = item; |
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370 #ifdef ST_FLASHER |
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371 TUint64 NoOfBlock512KAlign = (iTocPtr->iEmmcPartitionTable[3].iByteStartAddress + iTocPtr->iEmmcPartitionTable[3].iByteSize)/(KEraseMinSize); |
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372 iTocPtr->iEmmcPartitionTable[3].iByteStartAddress = (NoOfBlock512KAlign * KEraseMinSize) + KEraseStepSize;//align with 512KB + extra 4MB |
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373 iTocPtr->iUserAreaInBytes = (iCard->DeviceSize64() - ((TUint64)(iTocPtr->iEmmcPartitionTable[3].iByteStartAddress))); |
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374 #else //ST_FLASHER |
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375 iTocPtr->iEmmcPartitionTable[3].iByteStartAddress = iTocPtr->iEmmcPartitionTable[3].iByteStartAddress; |
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376 iTocPtr->iUserAreaInBytes = iTocPtr->iEmmcPartitionTable[3].iByteSize; |
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377 #endif //ST_FLASHER |
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378 } |
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379 else //search MEM_INIT partition |
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380 { |
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381 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>ERROR SOS-USER partition NOT found search for MEM_INIT")); |
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382 //USER partition is => Start address of MEM_INIT + Size of MEM_INIT |
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383 ret = iTocPtr->GetItemEx((TText8*)"MEM_INIT", item); |
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384 if(ret == KErrNone) |
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385 { |
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386 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>MEM_INIT partition found")); |
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387 //SOS-USER Partition |
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388 iTocPtr->iEmmcPartitionTable[3] = item; |
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389 TUint64 NoOfBlock512KAlign = (iTocPtr->iEmmcPartitionTable[3].iByteStartAddress + iTocPtr->iEmmcPartitionTable[3].iByteSize)/(KEraseMinSize); |
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390 iTocPtr->iEmmcPartitionTable[3].iByteStartAddress = (NoOfBlock512KAlign * KEraseMinSize) + KEraseStepSize;//align with 512KB + extra 4MB |
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391 iTocPtr->iUserAreaInBytes = (iCard->DeviceSize64() - ((TUint64)(iTocPtr->iEmmcPartitionTable[3].iByteStartAddress))); |
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392 } |
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393 else |
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394 { |
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395 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>ERROR MEM_INIT partition NOT found")); |
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396 } |
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397 } |
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398 |
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399 |
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400 // User Partition : iPartitionCount =0 |
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401 iPartitionInfo->iEntry[iTocPtr->iPartitionCount].iPartitionBaseAddr = iTocPtr->iEmmcPartitionTable[3].iByteStartAddress; |
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402 //iTocPtr->iUserAreaInBytes = iTocPtr->iUserAreaInBytes - (TUint64)(KEraseStepSize - KDiskSectorSize);// (0x3ffe00) |
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403 iPartitionInfo->iEntry[iTocPtr->iPartitionCount].iPartitionLen = iTocPtr->iUserAreaInBytes; |
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404 |
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405 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>iTocPtr->iEmmcPartitionTable[3].iByteSize=0x%x",iTocPtr->iUserAreaInBytes)); |
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406 |
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407 SetPartitionEntry( &iPartitionInfo->iEntry[iTocPtr->iPartitionCount], iTocPtr->iEmmcPartitionTable[3].iByteStartAddress/KDiskSectorSize, iTocPtr->iUserAreaInBytes/(TUint64)(KDiskSectorSize )); |
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408 iPartitionInfo->iEntry[iTocPtr->iPartitionCount].iPartitionType = KPartitionTypeFAT16; |
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409 iTocPtr->iPartitionCount++; |
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410 |
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411 // CoreOs Partition : iPartitionCount =1 |
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412 iPartitionInfo->iEntry[iTocPtr->iPartitionCount].iPartitionBaseAddr = iTocPtr->iEmmcPartitionTable[0].iByteStartAddress; |
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413 iPartitionInfo->iEntry[iTocPtr->iPartitionCount].iPartitionLen = iTocPtr->iEmmcPartitionTable[0].iByteSize; |
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414 |
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415 SetPartitionEntry( &iPartitionInfo->iEntry[iTocPtr->iPartitionCount], iTocPtr->iEmmcPartitionTable[0].iByteStartAddress/KDiskSectorSize, iTocPtr->iEmmcPartitionTable[0].iByteSize/KDiskSectorSize ); |
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416 iPartitionInfo->iEntry[iTocPtr->iPartitionCount].iPartitionType = KPartitionTypeROM;//KPartitionTypeEmpty indar |
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417 iTocPtr->iPartitionCount ++; |
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418 } |
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419 |
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420 } |
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421 |
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422 __KTRACE_OPT(KPBUSDRV,Kern::Printf(">>partitionCount=%d",iTocPtr->iPartitionCount)); |
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423 |
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424 partitionCount=iTocPtr->iPartitionCount; |
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425 |
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426 // Read of the first sector successful so check for a Master Boot Record |
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427 if (*(TUint16*)(&iIntBuf[KMBRSignatureOffset])!=0xAA55) |
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428 // If no valid signature give up now, No way to re-format an internal drive correctly |
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429 { |
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430 __KTRACE_OPT(KPBUSDRV, Kern::Printf("mmc:No MBR Found")); |
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431 // return KErrCorrupt; |
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432 } |
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433 |
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434 |
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435 __ASSERT_COMPILE(KMBRFirstPartitionOffsetAligned + KMBRMaxPrimaryPartitions * sizeof(TMBRPartitionEntry) <= KMBRSignatureOffset); |
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436 |
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437 memmove(&iIntBuf[0], &iIntBuf[2], |
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438 KMBRFirstPartitionOffsetAligned + KMBRMaxPrimaryPartitions * sizeof(TMBRPartitionEntry)); |
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439 |
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440 |
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441 for (i=0, pe = (TMBRPartitionEntry*)(&iIntBuf[KMBRFirstPartitionOffsetAligned]); |
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442 pe->iPartitionType != 0 && i < KMaxPartitionEntries; i++,pe--) |
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443 { |
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444 if (pe->IsDefaultBootPartition()) |
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445 { |
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446 SetPartitionEntry(&iPartitionInfo->iEntry[0],pe->iFirstSector,pe->iNumSectors); |
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447 defaultPartitionNumber=i; |
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448 partitionCount++; |
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449 break; |
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450 } |
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451 } |
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452 |
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453 // Now add any other partitions |
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454 for (i=0, pe = (TMBRPartitionEntry*)(&iIntBuf[KMBRFirstPartitionOffsetAligned]); |
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455 pe->iPartitionType != 0 && i < KMaxPartitionEntries; i++,pe--) |
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456 { |
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457 if (defaultPartitionNumber==i) |
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458 { |
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459 // Already sorted |
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460 } |
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461 |
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462 // FAT partition ? |
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463 else if (pe->IsValidDosPartition() || pe->IsValidFAT32Partition()) |
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464 { |
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465 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
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466 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: FAT partition found at sector #%u", pe->iFirstSector)); |
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467 partitionCount++; |
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468 } |
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469 |
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470 else if (pe->iPartitionType == KPartitionTypeROM) |
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471 { |
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472 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
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473 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
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474 partitionEntry.iPartitionType = pe->iPartitionType; |
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475 partitionCount++; |
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476 |
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477 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypeROM found at sector #%u", pe->iFirstSector)); |
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478 } |
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479 |
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480 // ROFS partition ? |
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481 else if (pe->iPartitionType == KPartitionTypeRofs) |
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482 { |
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483 |
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484 // Don't expose this for normal operation only boot? |
|
485 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
|
486 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
|
487 partitionEntry.iPartitionType = pe->iPartitionType; |
|
488 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypeRofs found at sector #%u", pe->iFirstSector)); |
|
489 partitionCount++; |
|
490 } |
|
491 |
|
492 // Swap partition ? |
|
493 else if (pe->iPartitionType == KPartitionTypePagedData) |
|
494 { |
|
495 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypePagedData found at sector #%u", pe->iFirstSector)); |
|
496 |
|
497 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
|
498 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
|
499 partitionEntry.iPartitionType = pe->iPartitionType; |
|
500 partitionCount++; |
|
501 } |
|
502 } |
|
503 |
|
504 // Check the validity of the partition address boundaries |
|
505 // If there is any MBR errors |
|
506 if(partitionCount > 0) |
|
507 { |
|
508 const TInt64 deviceSize = iCard->DeviceSize64(); |
|
509 TPartitionEntry& part = iPartitionInfo->iEntry[partitionCount - 1]; |
|
510 // Check that the card address space boundary is not exceeded by the last partition |
|
511 if(part.iPartitionBaseAddr + part.iPartitionLen > deviceSize) |
|
512 { |
|
513 __KTRACE_OPT(KPBUSDRV, Kern::Printf("Mmc: MBR partition exceeds card memory space")); |
|
514 return KErrCorrupt; |
|
515 } |
|
516 |
|
517 // More than one partition. Go through all of them |
|
518 if (partitionCount > 0) |
|
519 { |
|
520 for(i=partitionCount-1; i>0; i--) |
|
521 { |
|
522 const TPartitionEntry& curr = iPartitionInfo->iEntry[i]; |
|
523 TPartitionEntry& prev = iPartitionInfo->iEntry[i-1]; |
|
524 // Check if partitions overlap |
|
525 if(curr.iPartitionBaseAddr < (prev.iPartitionBaseAddr + prev.iPartitionLen)) |
|
526 { |
|
527 __KTRACE_OPT(KPBUSDRV, Kern::Printf("Mmc: Overlapping partitions")); |
|
528 //return KErrCorrupt; |
|
529 } |
|
530 } |
|
531 } |
|
532 } |
|
533 |
|
534 if (defaultPartitionNumber==(-1) && partitionCount==0) |
|
535 { |
|
536 __KTRACE_OPT(KPBUSDRV, Kern::Printf("No Valid Partitions Found!")); |
|
537 return KErrCorrupt; |
|
538 } |
|
539 |
|
540 |
|
541 iPartitionInfo->iPartitionCount=partitionCount; |
|
542 iPartitionInfo->iMediaSizeInBytes=iCard->DeviceSize64(); |
|
543 |
|
544 #ifdef _DEBUG |
|
545 __KTRACE_OPT(KPBUSDRV, Kern::Printf("<Mmc:PartitionInfo (C:%d)",partitionCount)); |
|
546 for (TUint x=0; x<partitionCount; x++) |
|
547 __KTRACE_OPT(KPBUSDRV, Kern::Printf(" Partition%d (B:%xH L:%xH)",x,I64LOW(iPartitionInfo->iEntry[x].iPartitionBaseAddr),I64LOW(iPartitionInfo->iEntry[x].iPartitionLen))); |
|
548 #endif |
|
549 |
|
550 |
|
551 //Notify medmmc that partitioninfo is complete. |
|
552 iCallBack.CallBack(); |
|
553 |
|
554 return(KErrNone); |
|
555 } |
|
556 |
|
557 |
|
558 void DLegacyEMMCPartitionInfo::SetPartitionEntry(TPartitionEntry* aEntry, TUint aFirstSector, TUint aNumSectors) |
|
559 // |
|
560 // auxiliary static function to record partition information in TPartitionEntry object |
|
561 // |
|
562 { |
|
563 aEntry->iPartitionBaseAddr=aFirstSector; |
|
564 aEntry->iPartitionBaseAddr<<=KDiskSectorShift; |
|
565 aEntry->iPartitionLen=aNumSectors; |
|
566 aEntry->iPartitionLen<<=KDiskSectorShift; |
|
567 aEntry->iPartitionType=KPartitionTypeFAT12; |
|
568 } |
|
569 |
|
570 // End - DLegacyEMMCPartitionInfo |
|
571 |
|
572 |
|
573 EXPORT_C DEMMCPartitionInfo* CreateEmmcPartitionInfo() |
|
574 { |
|
575 return new DLegacyEMMCPartitionInfo; |
|
576 } |
|
577 |
|
578 DECLARE_STANDARD_EXTENSION() |
|
579 { |
|
580 return KErrNone; |
|
581 } |
|
582 |
|
583 |
|
584 |
|
585 |
|
586 /************************************************************************** |
|
587 * TInt Toc::GetItemX(const TText8* aItemName, STocItem& aItem) |
|
588 *----------------------------------------------------------------------- |
|
589 * Search entry in XLOADER TOC with ItemName. |
|
590 * End of TOC limited by amount of entries only |
|
591 *----------------------------------------------------------------------- |
|
592 * Parameters: |
|
593 * TText8 : Item Name |
|
594 * STocItem : Reference of Item |
|
595 *----------------------------------------------------------------------- |
|
596 * Return Value |
|
597 * KErrNone : If Item Found other wise return KErrNotFound |
|
598 *************************************************************************/ |
|
599 |
|
600 TInt Toc::GetItemX(const TText8* aItemName, STocItem& aItem) |
|
601 { |
|
602 TUint8 i = 0; |
|
603 |
|
604 if ( aItemName == NULL ) |
|
605 { |
|
606 return KErrNotFound; |
|
607 } |
|
608 |
|
609 // check all items |
|
610 while ( i < KXMaxNbrOfTocItems ) |
|
611 { |
|
612 TUint8 j; |
|
613 for ( j = 0; j < KMaxItemNameLen; j++ ) |
|
614 { |
|
615 if ( aItemName[j] == iTOC[i].iFileName[j] ) |
|
616 { |
|
617 if ( aItemName[j] == 0 ) |
|
618 { |
|
619 // item found |
|
620 aItem = iTOC[i]; |
|
621 return KErrNone; |
|
622 } |
|
623 } |
|
624 else |
|
625 { |
|
626 break; |
|
627 } |
|
628 } |
|
629 |
|
630 i++; |
|
631 } |
|
632 |
|
633 return KErrNotFound; |
|
634 } |
|
635 |
|
636 |
|
637 /************************************************************************** |
|
638 * TInt Toc::GetItem(const TText8* aItemName, STocItem& aItem) |
|
639 *----------------------------------------------------------------------- |
|
640 * Search entry in TOC with ItemName. |
|
641 *----------------------------------------------------------------------- |
|
642 * Parameters: |
|
643 * TText8 : Item Name |
|
644 * STocItem : Reference of Item |
|
645 *----------------------------------------------------------------------- |
|
646 * Return Value |
|
647 * KErrNone : If Item Found other wise return KErrNotFound |
|
648 *************************************************************************/ |
|
649 |
|
650 TInt Toc::GetItem(const TText8* aItemName, STocItem& aItem) |
|
651 { |
|
652 TUint8 i = 0; |
|
653 |
|
654 if ( aItemName == NULL ) |
|
655 { |
|
656 return KErrNotFound; |
|
657 } |
|
658 |
|
659 // check all items |
|
660 while ( i < KMaxNbrOfTocItems && iTOC[i].iByteStartAddress != KEndOfToc ) |
|
661 { |
|
662 TUint8 j; |
|
663 for ( j = 0; j < KMaxItemNameLen; j++ ) |
|
664 { |
|
665 if ( aItemName[j] == iTOC[i].iFileName[j] ) |
|
666 { |
|
667 if ( aItemName[j] == 0 ) |
|
668 { |
|
669 // item found |
|
670 aItem = iTOC[i]; |
|
671 aItem.iByteStartAddress += ((TUint32)SECTOR_SIZE) * iTocStartSector; |
|
672 return KErrNone; |
|
673 } |
|
674 } |
|
675 else |
|
676 { |
|
677 break; |
|
678 } |
|
679 } |
|
680 |
|
681 i++; |
|
682 } |
|
683 |
|
684 return KErrNotFound; |
|
685 } |
|
686 |
|
687 /************************************************************************** |
|
688 * TInt Toc::GetItem(const TText8* aItemName, STocItem& aItem) |
|
689 *----------------------------------------------------------------------- |
|
690 * Search entry in TOC with aName as part of ItemName. |
|
691 *----------------------------------------------------------------------- |
|
692 * Parameters: |
|
693 * TText8 : Item Name |
|
694 * STocItem : Reference of Item |
|
695 *----------------------------------------------------------------------- |
|
696 * Return Value |
|
697 * KErrNone : If Item Found other wise return KErrNotFound |
|
698 *************************************************************************/ |
|
699 |
|
700 TInt Toc::GetItemEx(const TText8* aName, STocItem& aItem) |
|
701 { |
|
702 TInt i = 0; |
|
703 TInt l1 =0; |
|
704 TInt j , k,l2; |
|
705 |
|
706 if ( aName == NULL ) |
|
707 { |
|
708 return KErrNotFound; |
|
709 } |
|
710 |
|
711 // calculate length for name to be searched |
|
712 while ( i < KMaxItemNameLen && aName[i] != 0 ) { i++; l1++; } |
|
713 if ( !l1 ) return KErrGeneral; // zero length |
|
714 |
|
715 // check all items |
|
716 i = 0; |
|
717 while ( i < KMaxNbrOfTocItems && iTOC[i].iByteStartAddress != KEndOfToc ) |
|
718 { |
|
719 // calculate length of current item |
|
720 j = 0; l2 = 0; |
|
721 while ( j < KMaxItemNameLen && iTOC[i].iFileName[j] != 0 ) { j++; l2++; } |
|
722 if ( l2 < l1 ) { i++; continue; } // too short name, skip it |
|
723 |
|
724 |
|
725 // compare Item with aName |
|
726 for ( j = 0; j <= (l2 - l1); j++ ) |
|
727 { |
|
728 for ( k = 0; k < l1; k++ ) |
|
729 { |
|
730 if ( aName[k] != iTOC[i].iFileName[j+k] ) break; |
|
731 } |
|
732 |
|
733 if ( k == l1 ) |
|
734 { |
|
735 // item found |
|
736 aItem = iTOC[i]; |
|
737 // aItem.iByteStartAddress += ((TUint32)SECTOR_SIZE) * iTocStartSector; //indar check* |
|
738 return KErrNone; |
|
739 } |
|
740 } |
|
741 |
|
742 i++; |
|
743 } |
|
744 |
|
745 return KErrNotFound; |
|
746 } |
|
747 // End of File |
|
748 |
|