14 // Partition Management for Embedded MMC devices |
14 // Partition Management for Embedded MMC devices |
15 // |
15 // |
16 // |
16 // |
17 |
17 |
18 #include <drivers/emmcptn.h> |
18 #include <drivers/emmcptn.h> |
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19 #include "OstTraceDefinitions.h" |
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20 #ifdef OST_TRACE_COMPILER_IN_USE |
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21 #include "locmedia_ost.h" |
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22 #ifdef __VC32__ |
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23 #pragma warning(disable: 4127) // disabling warning "conditional expression is constant" |
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24 #endif |
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25 #include "emmcptnTraces.h" |
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26 #endif |
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27 |
19 |
28 |
20 const TInt KDiskSectorShift=9; |
29 const TInt KDiskSectorShift=9; |
21 |
30 |
22 class DLegacyEMMCPartitionInfo : public DEMMCPartitionInfo |
31 class DLegacyEMMCPartitionInfo : public DEMMCPartitionInfo |
23 { |
32 { |
48 }; |
57 }; |
49 |
58 |
50 DLegacyEMMCPartitionInfo::DLegacyEMMCPartitionInfo() |
59 DLegacyEMMCPartitionInfo::DLegacyEMMCPartitionInfo() |
51 : iSessionEndCallBack(DLegacyEMMCPartitionInfo::SessionEndCallBack, this) |
60 : iSessionEndCallBack(DLegacyEMMCPartitionInfo::SessionEndCallBack, this) |
52 { |
61 { |
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62 OstTraceFunctionEntry0( DLEGACYEMMCPARTITIONINFO_DLEGACYEMMCPARTITIONINFO_ENTRY ); |
53 } |
63 } |
54 |
64 |
55 DLegacyEMMCPartitionInfo::~DLegacyEMMCPartitionInfo() |
65 DLegacyEMMCPartitionInfo::~DLegacyEMMCPartitionInfo() |
56 { |
66 { |
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67 OstTraceFunctionEntry0( DLEGACYEMMCPARTITIONINFO_DESTRUCTOR_ENTRY ); |
57 delete iSession; |
68 delete iSession; |
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69 OstTraceFunctionExit0( DLEGACYEMMCPARTITIONINFO_DESTRUCTOR_EXIT ); |
58 } |
70 } |
59 |
71 |
60 TInt DLegacyEMMCPartitionInfo::Initialise(DMediaDriver* aDriver) |
72 TInt DLegacyEMMCPartitionInfo::Initialise(DMediaDriver* aDriver) |
61 { |
73 { |
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74 OstTraceFunctionEntry1( DLEGACYEMMCPARTITIONINFO_INITIALISE_ENTRY, this ); |
62 iDriver = aDriver; |
75 iDriver = aDriver; |
63 |
76 |
64 DMMCSocket* socket = ((DMMCSocket*)((DPBusPrimaryMedia*)(iDriver->iPrimaryMedia))->iSocket); |
77 DMMCSocket* socket = ((DMMCSocket*)((DPBusPrimaryMedia*)(iDriver->iPrimaryMedia))->iSocket); |
65 if(socket == NULL) |
78 if(socket == NULL) |
66 return(KErrNoMemory); |
79 { |
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80 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_INITIALISE_EXIT1, this, KErrNoMemory ); |
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81 return KErrNoMemory; |
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82 } |
67 |
83 |
68 DMMCStack* stack = socket->Stack(0); |
84 DMMCStack* stack = socket->Stack(0); |
69 iCard = stack->CardP(((DPBusPrimaryMedia*)(iDriver->iPrimaryMedia))->iSlotNumber); |
85 iCard = stack->CardP(((DPBusPrimaryMedia*)(iDriver->iPrimaryMedia))->iSlotNumber); |
70 |
86 |
71 iSession = stack->AllocSession(iSessionEndCallBack); |
87 iSession = stack->AllocSession(iSessionEndCallBack); |
72 if (iSession == NULL) |
88 if (iSession == NULL) |
73 return(KErrNoMemory); |
89 return KErrNoMemory; |
74 |
90 |
75 iSession->SetStack(stack); |
91 iSession->SetStack(stack); |
76 iSession->SetCard(iCard); |
92 iSession->SetCard(iCard); |
77 |
93 |
78 // this gets used before any access |
94 // this gets used before any access |
79 TInt bufLen, minorBufLen; |
95 TInt bufLen, minorBufLen; |
80 stack->BufferInfo(iIntBuf, bufLen, minorBufLen); |
96 stack->BufferInfo(iIntBuf, bufLen, minorBufLen); |
81 |
97 |
82 return(KErrNone); |
98 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_INITIALISE_EXIT2, this, KErrNone ); |
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99 return KErrNone; |
83 } |
100 } |
84 |
101 |
85 TInt DLegacyEMMCPartitionInfo::PartitionInfo(TPartitionInfo& anInfo, const TMMCCallBack& aCallBack) |
102 TInt DLegacyEMMCPartitionInfo::PartitionInfo(TPartitionInfo& anInfo, const TMMCCallBack& aCallBack) |
86 { |
103 { |
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104 OstTraceFunctionEntry1( DLEGACYEMMCPARTITIONINFO_PARTITIONINFO_ENTRY, this ); |
87 iPartitionInfo = &anInfo; |
105 iPartitionInfo = &anInfo; |
88 iCallBack = aCallBack; |
106 iCallBack = aCallBack; |
89 // If media driver is persistent (see EMediaDriverPersistent), |
107 // If media driver is persistent (see EMediaDriverPersistent), |
90 // the card may have changed since last power down, so reset CID |
108 // the card may have changed since last power down, so reset CID |
91 iSession->SetCard(iCard); |
109 iSession->SetCard(iCard); |
97 r = iSession->Engage(); |
115 r = iSession->Engage(); |
98 |
116 |
99 if(r != KErrNone) |
117 if(r != KErrNone) |
100 iDriver->EndInCritical(); |
118 iDriver->EndInCritical(); |
101 |
119 |
102 return(r); |
120 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_PARTITIONINFO_EXIT, this, r ); |
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121 return r; |
103 } |
122 } |
104 |
123 |
105 TInt DLegacyEMMCPartitionInfo::PartitionCaps(TLocDrv& aDrive, TDes8& aInfo) |
124 TInt DLegacyEMMCPartitionInfo::PartitionCaps(TLocDrv& aDrive, TDes8& aInfo) |
106 { |
125 { |
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126 OstTraceFunctionEntry1( DLEGACYEMMCPARTITIONINFO_PARTITIONCAPS_ENTRY, this ); |
107 TLocalDriveCapsV6Buf& Info = static_cast< TLocalDriveCapsV6Buf&> (aInfo); |
127 TLocalDriveCapsV6Buf& Info = static_cast< TLocalDriveCapsV6Buf&> (aInfo); |
108 |
128 |
109 // is this query for the swap partition ? |
129 // is this query for the swap partition ? |
110 if (aDrive.iPartitionType == KPartitionTypePagedData) |
130 if (aDrive.iPartitionType == KPartitionTypePagedData) |
111 { |
131 { |
127 Info().iFileSystemId = KDriveFileNone; |
147 Info().iFileSystemId = KDriveFileNone; |
128 Info().iMediaAtt&= ~KMediaAttFormattable; |
148 Info().iMediaAtt&= ~KMediaAttFormattable; |
129 Info().iMediaAtt|= KMediaAttWriteProtected; |
149 Info().iMediaAtt|= KMediaAttWriteProtected; |
130 } |
150 } |
131 |
151 |
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152 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_PARTITIONCAPS_EXIT, this, KErrNone ); |
132 return KErrNone; |
153 return KErrNone; |
133 } |
154 } |
134 |
155 |
135 void DLegacyEMMCPartitionInfo::SessionEndCallBack(TAny* aSelf) |
156 void DLegacyEMMCPartitionInfo::SessionEndCallBack(TAny* aSelf) |
136 { |
157 { |
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158 OstTraceFunctionEntry0( DLEGACYEMMCPARTITIONINFO_SESSIONENDCALLBACK_ENTRY ); |
137 DLegacyEMMCPartitionInfo& self = *static_cast<DLegacyEMMCPartitionInfo*>(aSelf); |
159 DLegacyEMMCPartitionInfo& self = *static_cast<DLegacyEMMCPartitionInfo*>(aSelf); |
138 self.DoSessionEndCallBack(); |
160 self.DoSessionEndCallBack(); |
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161 OstTraceFunctionExit0( DLEGACYEMMCPARTITIONINFO_SESSIONENDCALLBACK_EXIT ); |
139 } |
162 } |
140 |
163 |
141 void DLegacyEMMCPartitionInfo::DoSessionEndCallBack() |
164 void DLegacyEMMCPartitionInfo::DoSessionEndCallBack() |
142 { |
165 { |
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166 OstTraceFunctionEntry1( DLEGACYEMMCPARTITIONINFO_DOSESSIONENDCALLBACK_ENTRY, this ); |
143 iDriver->EndInCritical(); |
167 iDriver->EndInCritical(); |
144 |
168 |
145 TInt r = iSession->EpocErrorCode(); |
169 TInt r = iSession->EpocErrorCode(); |
146 |
170 |
147 if (r == KErrNone) |
171 if (r == KErrNone) |
148 r = DecodePartitionInfo(); |
172 r = DecodePartitionInfo(); |
149 |
173 |
150 iDriver->PartitionInfoComplete(r == KErrNone ? r : KErrNotReady); |
174 iDriver->PartitionInfoComplete(r == KErrNone ? r : KErrNotReady); |
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175 OstTraceFunctionExit1( DLEGACYEMMCPARTITIONINFO_DOSESSIONENDCALLBACK_EXIT, this ); |
151 } |
176 } |
152 |
177 |
153 TInt DLegacyEMMCPartitionInfo::DecodePartitionInfo() |
178 TInt DLegacyEMMCPartitionInfo::DecodePartitionInfo() |
154 // |
179 // |
155 // decode partition info that was read into internal buffer |
180 // decode partition info that was read into internal buffer |
156 // |
181 // |
157 { |
182 { |
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183 OstTraceFunctionEntry1( DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_ENTRY, this ); |
158 TUint partitionCount=iPartitionInfo->iPartitionCount=0; |
184 TUint partitionCount=iPartitionInfo->iPartitionCount=0; |
159 TInt defaultPartitionNumber=-1; |
185 TInt defaultPartitionNumber=-1; |
160 TMBRPartitionEntry* pe; |
186 TMBRPartitionEntry* pe; |
161 const TUint KMBRFirstPartitionOffsetAligned = KMBRFirstPartitionOffset & ~3; |
187 const TUint KMBRFirstPartitionOffsetAligned = KMBRFirstPartitionOffset & ~3; |
162 TInt i; |
188 TInt i; |
163 |
189 |
164 // Read of the first sector successful so check for a Master Boot Record |
190 // Read of the first sector successful so check for a Master Boot Record |
165 if (*(TUint16*)(&iIntBuf[KMBRSignatureOffset])!=0xAA55) |
191 if (*(TUint16*)(&iIntBuf[KMBRSignatureOffset])!=0xAA55) |
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192 { |
166 // If no valid signature give up now, No way to re-format an internal drive correctly |
193 // If no valid signature give up now, No way to re-format an internal drive correctly |
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194 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_EXIT1, this, KErrCorrupt ); |
167 return KErrCorrupt; |
195 return KErrCorrupt; |
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196 } |
168 |
197 |
169 __ASSERT_COMPILE(KMBRFirstPartitionOffsetAligned + KMBRMaxPrimaryPartitions * sizeof(TMBRPartitionEntry) <= KMBRSignatureOffset); |
198 __ASSERT_COMPILE(KMBRFirstPartitionOffsetAligned + KMBRMaxPrimaryPartitions * sizeof(TMBRPartitionEntry) <= KMBRSignatureOffset); |
170 |
199 |
171 memmove(&iIntBuf[0], &iIntBuf[2], |
200 memmove(&iIntBuf[0], &iIntBuf[2], |
172 KMBRFirstPartitionOffsetAligned + KMBRMaxPrimaryPartitions * sizeof(TMBRPartitionEntry)); |
201 KMBRFirstPartitionOffsetAligned + KMBRMaxPrimaryPartitions * sizeof(TMBRPartitionEntry)); |
196 // FAT partition ? |
225 // FAT partition ? |
197 else if (pe->IsValidDosPartition() || pe->IsValidFAT32Partition() || pe->IsValidExFATPartition()) |
226 else if (pe->IsValidDosPartition() || pe->IsValidFAT32Partition() || pe->IsValidExFATPartition()) |
198 { |
227 { |
199 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
228 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
200 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: FAT partition found at sector #%u", pe->iFirstSector)); |
229 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: FAT partition found at sector #%u", pe->iFirstSector)); |
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230 OstTrace1(TRACE_INTERNALS, DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_FAT, "FAT partition found at sector #%x", pe->iFirstSector); |
201 partitionCount++; |
231 partitionCount++; |
202 } |
232 } |
203 |
233 |
204 else if (pe->iPartitionType == KPartitionTypeROM) |
234 else if (pe->iPartitionType == KPartitionTypeROM) |
205 { |
235 { |
207 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
237 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
208 partitionEntry.iPartitionType = pe->iPartitionType; |
238 partitionEntry.iPartitionType = pe->iPartitionType; |
209 partitionCount++; |
239 partitionCount++; |
210 |
240 |
211 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypeROM found at sector #%u", pe->iFirstSector)); |
241 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypeROM found at sector #%u", pe->iFirstSector)); |
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242 OstTrace1(TRACE_INTERNALS, DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_ROM, "KPartitionTypeROM found at sector #%x", pe->iFirstSector); |
212 } |
243 } |
213 |
244 |
214 // ROFS partition ? |
245 // ROFS partition ? |
215 else if (pe->iPartitionType == KPartitionTypeRofs) |
246 else if (pe->iPartitionType == KPartitionTypeRofs) |
216 { |
247 { |
218 // Don't expose this for normal operation only boot? |
249 // Don't expose this for normal operation only boot? |
219 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
250 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
220 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
251 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
221 partitionEntry.iPartitionType = pe->iPartitionType; |
252 partitionEntry.iPartitionType = pe->iPartitionType; |
222 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypeRofs found at sector #%u", pe->iFirstSector)); |
253 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypeRofs found at sector #%u", pe->iFirstSector)); |
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254 OstTrace1(TRACE_INTERNALS, DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_ROFS, "KPartitionTypeRofs found at sector #%x", pe->iFirstSector); |
223 partitionCount++; |
255 partitionCount++; |
224 } |
256 } |
225 |
257 |
226 // Swap partition ? |
258 // Swap partition ? |
227 else if (pe->iPartitionType == KPartitionTypePagedData) |
259 else if (pe->iPartitionType == KPartitionTypePagedData) |
228 { |
260 { |
229 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypePagedData found at sector #%u", pe->iFirstSector)); |
261 __KTRACE_OPT(KLOCDPAGING, Kern::Printf("Mmc: KPartitionTypePagedData found at sector #%u", pe->iFirstSector)); |
230 |
262 OstTrace1(TRACE_INTERNALS, DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_PAGED, "KPartitionTypeRofs found at sector #%x", pe->iFirstSector); |
231 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
263 TPartitionEntry& partitionEntry = iPartitionInfo->iEntry[partitionCount]; |
232 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
264 SetPartitionEntry(&iPartitionInfo->iEntry[partitionCount],pe->iFirstSector,pe->iNumSectors); |
233 partitionEntry.iPartitionType = pe->iPartitionType; |
265 partitionEntry.iPartitionType = pe->iPartitionType; |
234 partitionCount++; |
266 partitionCount++; |
235 } |
267 } |
243 TPartitionEntry& part = iPartitionInfo->iEntry[partitionCount - 1]; |
275 TPartitionEntry& part = iPartitionInfo->iEntry[partitionCount - 1]; |
244 // Check that the card address space boundary is not exceeded by the last partition |
276 // Check that the card address space boundary is not exceeded by the last partition |
245 if(part.iPartitionBaseAddr + part.iPartitionLen > deviceSize) |
277 if(part.iPartitionBaseAddr + part.iPartitionLen > deviceSize) |
246 { |
278 { |
247 __KTRACE_OPT(KPBUSDRV, Kern::Printf("Mmc: MBR partition exceeds card memory space")); |
279 __KTRACE_OPT(KPBUSDRV, Kern::Printf("Mmc: MBR partition exceeds card memory space")); |
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280 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_EXIT2, this, KErrCorrupt ); |
248 return KErrCorrupt; |
281 return KErrCorrupt; |
249 } |
282 } |
250 |
283 |
251 // More than one partition. Go through all of them |
284 // More than one partition. Go through all of them |
252 if (partitionCount > 0) |
285 if (partitionCount > 0) |
257 TPartitionEntry& prev = iPartitionInfo->iEntry[i-1]; |
290 TPartitionEntry& prev = iPartitionInfo->iEntry[i-1]; |
258 // Check if partitions overlap |
291 // Check if partitions overlap |
259 if(curr.iPartitionBaseAddr < (prev.iPartitionBaseAddr + prev.iPartitionLen)) |
292 if(curr.iPartitionBaseAddr < (prev.iPartitionBaseAddr + prev.iPartitionLen)) |
260 { |
293 { |
261 __KTRACE_OPT(KPBUSDRV, Kern::Printf("Mmc: Overlapping partitions")); |
294 __KTRACE_OPT(KPBUSDRV, Kern::Printf("Mmc: Overlapping partitions")); |
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295 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_EXIT3, this, KErrCorrupt ); |
262 return KErrCorrupt; |
296 return KErrCorrupt; |
263 } |
297 } |
264 } |
298 } |
265 } |
299 } |
266 } |
300 } |
267 |
301 |
268 if (defaultPartitionNumber==(-1) && partitionCount==0) |
302 if (defaultPartitionNumber==(-1) && partitionCount==0) |
269 { |
303 { |
270 __KTRACE_OPT(KPBUSDRV, Kern::Printf("No Valid Partitions Found!")); |
304 __KTRACE_OPT(KPBUSDRV, Kern::Printf("No Valid Partitions Found!")); |
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305 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_EXIT4, this, KErrCorrupt ); |
271 return KErrCorrupt; |
306 return KErrCorrupt; |
272 } |
307 } |
273 |
308 |
274 iPartitionInfo->iPartitionCount=partitionCount; |
309 iPartitionInfo->iPartitionCount=partitionCount; |
275 iPartitionInfo->iMediaSizeInBytes=iCard->DeviceSize64(); |
310 iPartitionInfo->iMediaSizeInBytes=iCard->DeviceSize64(); |
281 #endif |
316 #endif |
282 |
317 |
283 //Notify medmmc that partitioninfo is complete. |
318 //Notify medmmc that partitioninfo is complete. |
284 iCallBack.CallBack(); |
319 iCallBack.CallBack(); |
285 |
320 |
286 return(KErrNone); |
321 OstTraceFunctionExitExt( DLEGACYEMMCPARTITIONINFO_DECODEPARTITIONINFO_EXIT5, this, KErrNone ); |
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322 return KErrNone; |
287 } |
323 } |
288 |
324 |
289 |
325 |
290 void DLegacyEMMCPartitionInfo::SetPartitionEntry(TPartitionEntry* aEntry, TUint aFirstSector, TUint aNumSectors) |
326 void DLegacyEMMCPartitionInfo::SetPartitionEntry(TPartitionEntry* aEntry, TUint aFirstSector, TUint aNumSectors) |
291 // |
327 // |
292 // auxiliary static function to record partition information in TPartitionEntry object |
328 // auxiliary static function to record partition information in TPartitionEntry object |
293 // |
329 // |
294 { |
330 { |
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331 OstTraceFunctionEntryExt( DLEGACYEMMCPARTITIONINFO_SETPARTITIONENTRY_ENTRY, this ); |
295 aEntry->iPartitionBaseAddr=aFirstSector; |
332 aEntry->iPartitionBaseAddr=aFirstSector; |
296 aEntry->iPartitionBaseAddr<<=KDiskSectorShift; |
333 aEntry->iPartitionBaseAddr<<=KDiskSectorShift; |
297 aEntry->iPartitionLen=aNumSectors; |
334 aEntry->iPartitionLen=aNumSectors; |
298 aEntry->iPartitionLen<<=KDiskSectorShift; |
335 aEntry->iPartitionLen<<=KDiskSectorShift; |
299 aEntry->iPartitionType=KPartitionTypeFAT12; |
336 aEntry->iPartitionType=KPartitionTypeFAT12; |
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337 OstTraceFunctionExit1( DLEGACYEMMCPARTITIONINFO_SETPARTITIONENTRY_EXIT, this ); |
300 } |
338 } |
301 |
339 |
302 // End - DLegacyEMMCPartitionInfo |
340 // End - DLegacyEMMCPartitionInfo |
303 |
341 |
304 |
342 |
305 EXPORT_C DEMMCPartitionInfo* CreateEmmcPartitionInfo() |
343 EXPORT_C DEMMCPartitionInfo* CreateEmmcPartitionInfo() |
306 { |
344 { |
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345 OstTraceFunctionEntry0( _CREATEEMMCPARTITIONINFO_ENTRY ); |
307 return new DLegacyEMMCPartitionInfo; |
346 return new DLegacyEMMCPartitionInfo; |
308 } |
347 } |
309 |
348 |
310 DECLARE_STANDARD_EXTENSION() |
349 DECLARE_STANDARD_EXTENSION() |
311 { |
350 { |