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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\drivers\resourceman\resourcecontrol_extended.cpp
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//
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//
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#include <drivers/resourcecontrol.h>
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extern DPowerResourceController* PowerResourceController;
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/**
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@internalComponent
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@prototype 9.5
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Reserves the client level from pool to be used for updating resource client level in dependency resource.
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@param aCount Number of client levels to reserve from pool
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@return KErrNone On success
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@return KErrNoMemory Not enough memory to grow the pool
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*/
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TInt DPowerResourceController::ReserveClientLevelPoolCount(TUint16 aCount)
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{
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if(aCount < iResourceLevelPoolCount)
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iResourceLevelPoolCount = (TUint16)(iResourceLevelPoolCount - aCount);
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else
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{
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TUint allocCount = (iStaticResDependencyCount / 2) + aCount;
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// coverity[alloc_fn]
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SPowerResourceClientLevel* pCL = new SPowerResourceClientLevel[allocCount];
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if(!pCL)
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return KErrNoMemory;
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for(TUint count = 0;count<(TUint)(allocCount);count++)
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LIST_PUSH(iResourceLevelPool, &pCL[count], iNextInList);
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iResourceLevelPoolCount= (TUint16)(iResourceLevelPoolCount + (iStaticResDependencyCount / 2));
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#ifdef PRM_INSTRUMENTATION_MACRO
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TUint size = allocCount * 4;
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PRM_MEMORY_USAGE_TRACE
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#endif
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}
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return KErrNone;
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}
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/**
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@internalComponent
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@prototype 9.5
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Return a client level object from pool.
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@param aLevelPtr Pointer to update the client level object.
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@return None
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*/
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void DPowerResourceController::RemoveClientLevelFromPool(SPowerResourceClientLevel *&aLevelPtr)
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{
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LIST_POP(iResourceLevelPool, aLevelPtr, iNextInList);
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return;
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}
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/**
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Update with number of dependent resources for the specified resource.
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*/
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TInt DPowerResourceController::GetNumDependentsForResource(TUint aResourceId, TUint* aNumResources)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DPowerResourceController::GetNumDependentsForResource"));
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if(!(aResourceId & KIdMaskResourceWithDependencies))
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return KErrNotSupported;
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SNode* pN;
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if(aResourceId & KIdMaskDynamic)
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{
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DDynamicPowerResourceD* pDR = iDynamicResDependencyList[(TUint16)(aResourceId & ID_INDEX_BIT_MASK)];
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if(!pDR)
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return KErrNotFound;
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pN = pDR->iDependencyList;
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}
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else
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{
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if((aResourceId & ID_INDEX_BIT_MASK) > iStaticResDependencyCount)
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return KErrNotFound;
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DStaticPowerResourceD* pDR = iStaticResDependencyArray[(TUint16)(aResourceId & ID_INDEX_BIT_MASK) - 1];
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pN = pDR->iDependencyList;
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}
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*aNumResources = 0;
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for(;pN != NULL; pN = pN->iNext)
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(*aNumResources)++;
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("<DPowerResourceController::GetNumDependentsForResource"));
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return KErrNone;
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}
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/**
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Update the specified array with dependent resource Id's of the specified resource.
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*/
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TInt DPowerResourceController::GetDependentsIdForResource(TUint aResourceId, TAny* aInfo, TUint* aNumDepResources)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DPowerResourceController::GetDependentsIdForResource"));
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if(!(aResourceId & KIdMaskResourceWithDependencies))
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return KErrNotSupported;
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if(!aInfo || !*aNumDepResources)
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{
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return KErrArgument;
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}
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TDes8 *pInfo = (TDes8*)aInfo;
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if((TUint)(pInfo->MaxLength() - pInfo->Length()) < (sizeof(SResourceDependencyInfo)*(*aNumDepResources)))
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return KErrArgument;
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SResourceDependencyInfo sResDepInfo;
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SNode* pN;
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if(aResourceId & KIdMaskDynamic)
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{
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DDynamicPowerResourceD* pDR = iDynamicResDependencyList[(TUint16)(aResourceId & ID_INDEX_BIT_MASK)];
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if(!pDR)
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return KErrNotFound;
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pN = pDR->iDependencyList;
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}
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else
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{
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if((aResourceId & ID_INDEX_BIT_MASK) > iStaticResDependencyCount)
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return KErrNotFound;
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DStaticPowerResourceD* pDR = iStaticResDependencyArray[(TUint16)(aResourceId & ID_INDEX_BIT_MASK) -1];
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pN = pDR->iDependencyList;
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}
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TUint count = 0;
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TUint resCount = 0;
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for(; pN != NULL; pN = pN->iNext)
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{
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resCount++;
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if(count == *aNumDepResources)
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continue;
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sResDepInfo.iResourceId = pN->iResource->iResourceId;
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sResDepInfo.iDependencyPriority = pN->iPriority;
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pInfo->Append(TPckgC<SResourceDependencyInfo>(sResDepInfo));
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}
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*aNumDepResources = resCount;
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("<DPowerResourceController::GetDependentsIdForResource"));
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return KErrNone;
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}
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/**
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Registers resource dependency. This could be between 2 dynamic resource or between
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dynamic and static resource.
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*/
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TInt DPowerResourceController::RegisterResourceDependency(SPowerResourceClient* aClientPtr, SResourceDependencyInfo* aInfo1,
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SResourceDependencyInfo* aInfo2)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DExtendedResourceController::RegisterResourceDependency"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("ClientId = 0x%x, ResourceId1 = 0x%x, ResourceId2 = 0x%x",
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aClientPtr->iClientId, aInfo1->iResourceId, aInfo2->iResourceId));
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if(iDfcQDependencyLock)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DPowerResourceController::RegisterResourceDependency::Resource In Use"));
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return KErrInUse;
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}
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TInt r = KErrNone;
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//One of the resource must be dynamic resource
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if(!(aInfo1->iResourceId & KIdMaskDynamic) && !(aInfo2->iResourceId & KIdMaskDynamic))
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return KErrNotSupported;
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//Both the resources should have dependency resource bit set in its id.
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if(!(aInfo1->iResourceId & KIdMaskResourceWithDependencies) || !(aInfo2->iResourceId & KIdMaskResourceWithDependencies))
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return KErrNotSupported;
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DDynamicPowerResourceD* pR1 = NULL;
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DDynamicPowerResourceD* pR2 = NULL;
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SNode* pN1 = NULL;
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SNode* pN2 = NULL;
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//Retrieve resource1 from the corresponding list.
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if(aInfo1->iResourceId & KIdMaskDynamic)
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{
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pR1 = iDynamicResDependencyList[(TUint16)(aInfo1->iResourceId & ID_INDEX_BIT_MASK)];
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if(!pR1)
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return KErrNotFound;
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pN1 = pR1->iDependencyList;
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}
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else
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{
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if((aInfo1->iResourceId & ID_INDEX_BIT_MASK) > iStaticResDependencyCount)
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return KErrNotFound;
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pR1 = (DDynamicPowerResourceD*)iStaticResDependencyArray[(TUint16)(aInfo1->iResourceId & ID_INDEX_BIT_MASK) - 1];
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pN1 = ((DStaticPowerResourceD*)pR1)->iDependencyList;
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}
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//Retrieve resource2 from the corresponding list.
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if(aInfo2->iResourceId & KIdMaskDynamic)
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{
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pR2 = iDynamicResDependencyList[(TUint16)(aInfo2->iResourceId & ID_INDEX_BIT_MASK)];
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if(!pR2)
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return KErrNotFound;
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pN2 = pR2->iDependencyList;
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}
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else
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{
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if((aInfo2->iResourceId & ID_INDEX_BIT_MASK) > iStaticResDependencyCount)
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return KErrNotFound;
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pR2 = (DDynamicPowerResourceD*)iStaticResDependencyArray[(TUint16)(aInfo2->iResourceId & ID_INDEX_BIT_MASK) - 1];
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pN2 = ((DStaticPowerResourceD*)pR2)->iDependencyList;
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}
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//Only long latency resource is allowed to have dependents.
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if(!pR1->LatencySet())
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pR1->iFlags |= KLongLatencySet;
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if(!pR2->LatencySet())
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pR2->iFlags |= KLongLatencySet;
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//Check for closed loop
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//NOTE: Panics, if any closed loop is encountered
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if(pN1)
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CheckForDependencyLoop((DStaticPowerResourceD*)pR1, pR1->iResourceId, pR2->iResourceId);
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if(pN2)
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CheckForDependencyLoop((DStaticPowerResourceD*)pR2, pR2->iResourceId, pR1->iResourceId);
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//Check whether the passed priority already exists.Code will return with KErrAlreadyExists, if it exists.
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CHECK_IF_PRIORITY_ALREADY_EXISTS(pN1, aInfo2->iDependencyPriority)
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CHECK_IF_PRIORITY_ALREADY_EXISTS(pN2, aInfo1->iDependencyPriority)
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UnLock();
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//Allocate nodes
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// coverity[alloc_fn]
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SNode* pSN1 = new (SNode);
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// coverity[alloc_fn]
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SNode* pSN2 = new (SNode);
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Lock();
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if(!pSN1 || !pSN2)
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return KErrNoMemory;
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//Add the link
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pSN1->iResource = (DStaticPowerResourceD*)pR1;
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pSN1->iPropagatedLevel = 0;
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pSN1->iPriority = aInfo1->iDependencyPriority;
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pSN1->iVisited = EFalse;
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pSN1->iNext = NULL;
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pSN2->iResource = (DStaticPowerResourceD*)pR2;
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pSN2->iPropagatedLevel = 0;
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pSN2->iPriority = aInfo2->iDependencyPriority;
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pSN2->iVisited = EFalse;
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pSN2->iNext = NULL;
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if(aInfo1->iResourceId & KIdMaskDynamic) //Dynamic resource
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// coverity[memory_leak]
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ADD_DEPENDENCY_NODE(pSN2, ((DDynamicPowerResourceD*)pR1)->iDependencyList)
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else
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((DStaticPowerResourceD*)pR1)->AddNode(pSN2);
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//Add the second node
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if(aInfo2->iResourceId & KIdMaskDynamic) //Dynamic resource
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// coverity[memory_leak]
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ADD_DEPENDENCY_NODE(pSN1, ((DDynamicPowerResourceD*)pR2)->iDependencyList)
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else
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((DStaticPowerResourceD*)pR2)->AddNode(pSN1);
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("<DExtendedResourceController::RegisterResourceDependency"));
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#ifdef PRM_INSTRUMENTATION_MACRO
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PRM_REGISTER_RESOURCE_DEPENDENCY_TRACE
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#endif
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return r;
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}
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/**
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Registers dynamic resource.
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*/
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TInt DPowerResourceController::RegisterDynamicResource(SPowerResourceClient* aClientPtr, DDynamicPowerResource* aPDRes,
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TUint* aDynamicResourceId)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DExtendedResourceController::RegisterDynamicResource"));
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TInt r = KErrNone;
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//Check for dynamic resource
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if(!(aPDRes->iResourceId & KIdMaskDynamic))
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return KErrNotSupported;
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//check for count
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else if(aPDRes->LockCount() != 0)
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return KErrAlreadyExists;
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TPowerRequest* req = (TPowerRequest*)&TPowerRequest::Get();
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req->ReqType() = TPowerRequest::ERegisterDynamicResource;
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req->Resource() = (DStaticPowerResource*)aPDRes;
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UnLock();
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req->SendReceive(iMsgQ);
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Lock();
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if(req->ReturnCode() == KErrNone)
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{
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*aDynamicResourceId = req->ResourceId();
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aPDRes-> iOwnerId = aClientPtr->iClientId;
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aPDRes->Lock();
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//Increment dynamic resource count in client
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aClientPtr->iDynamicResCount++;
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}
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("<DExtendedResourceController::RegisterDynamicResource, resource ID = 0x%x",
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aDynamicResourceId));
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#ifdef PRM_INSTRUMENTATION_MACRO
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PRM_REGISTER_DYNAMIC_RESOURCE_TRACE
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#endif
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return r;
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}
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/**
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Deregisters dynamic resource.
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*/
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TInt DPowerResourceController::DeregisterDynamicResource(SPowerResourceClient* aClientPtr, TUint aResourceId,
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TInt* aPDefLevel)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DExtendedResourceController::DeregisterDynamicResource"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId = 0x%x, aDynamicResourceId = 0x%x, Default Level = %d",
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aClientPtr->iClientId, aResourceId, aPDefLevel ? *aPDefLevel : 0));
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TInt r = KErrNone;
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DDynamicPowerResource* pDR = NULL;
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//Check for dynamic resource bit
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if(!(aResourceId & KIdMaskDynamic))
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return KErrNotSupported;
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//Get the resource from appropriate container
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if(aResourceId & KIdMaskResourceWithDependencies)
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{
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pDR = iDynamicResDependencyList[(TUint16)(aResourceId & ID_INDEX_BIT_MASK)];
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if(!pDR)
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return KErrNotFound;
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}
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else
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{
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pDR = iDynamicResourceList[(TUint16)(aResourceId & ID_INDEX_BIT_MASK)];
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if(!pDR)
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return KErrNotFound;
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}
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//Client which registered the dynamic resource is only allowed to deregister.
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if(aClientPtr->iClientId != pDR->iOwnerId)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("Client attempting to deregister a dynamic resource which is not the owner!"));
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return KErrAccessDenied;
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}
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// Don't allow to deregister if the some other operation is in progress or if the resource is shared and
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// another client holds requirement on this resource
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if((pDR->LockCount() > RESOURCE_NOT_IN_OPERATION) || pDR->InUse())
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{
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return KErrInUse;
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}
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TPowerRequest* req = (TPowerRequest*)&TPowerRequest::Get();
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req->ResourceCb() = NULL;
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req->ReturnCode() = KErrNone;
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req->RequiresChange() = EFalse;
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pDR->UnLock(); //Marked as deleted so that no other operation will be taking place.
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req->ReqType() = TPowerRequest::ESetDefaultLevel;
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//Handle dynamic resource with dependencies
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if(aResourceId & KIdMaskResourceWithDependencies)
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{
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for(SNode* pNode = ((DDynamicPowerResourceD*)pDR)->iDependencyList; pNode != NULL; pNode = pNode->iNext)
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{
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if((TUint)pNode->iResource->iLevelOwnerId == aResourceId)
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{
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req->ResourceId() = pNode->iResource->iResourceId;
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req->ClientId() = aResourceId;
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req->Level() = pNode->iResource->iCachedLevel;
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req->Resource() = pNode->iResource;
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((DDynamicPowerResourceD*)(pNode->iResource))->Lock();
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UnLock();
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req->SendReceive(iMsgQDependency);
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Lock();
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}
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//Remove entry from resource dependency list
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for(SNode* pSN = pNode->iResource->iDependencyList; pSN != NULL; pSN = pSN->iNext)
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{
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if(pSN->iResource->iResourceId == aResourceId)
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{
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LIST_REMOVE(pNode->iResource->iDependencyList, pSN, iNext, SNode);
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UnLock();
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delete pSN;
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380 |
Lock();
|
|
381 |
break;
|
|
382 |
}
|
|
383 |
}
|
|
384 |
//Remove from dependent resource "resource client level" list
|
|
385 |
for(SPowerResourceClientLevel* pL = ((DDynamicPowerResourceD*)(pNode->iResource))->iResourceClientList;
|
|
386 |
pL != NULL; pL = pL->iNextInList)
|
|
387 |
{
|
|
388 |
if(pL->iClientId == aResourceId)
|
|
389 |
{
|
|
390 |
LIST_REMOVE(((DDynamicPowerResourceD*)(pNode->iResource))->iResourceClientList, pL, iNextInList,
|
|
391 |
SPowerResourceClientLevel);
|
|
392 |
//Move to free pool
|
|
393 |
LIST_PUSH(iResourceLevelPool, pL, iNextInList);
|
|
394 |
iResourceLevelPoolCount++;
|
|
395 |
}
|
|
396 |
}
|
|
397 |
((DDynamicPowerResource*)(pNode->iResource))->UnLock();
|
|
398 |
}
|
|
399 |
//Move the resource to default level
|
|
400 |
req->ClientId() = -1;
|
|
401 |
req->ResourceId() = aResourceId;
|
|
402 |
req->Resource() = pDR;
|
|
403 |
if(aPDefLevel)
|
|
404 |
req->Level() = *aPDefLevel; //Set the resource to the passed level
|
|
405 |
else
|
|
406 |
req->Level() = pDR->iDefaultLevel; //Set the resource level to default level
|
|
407 |
UnLock();
|
|
408 |
req->SendReceive(iMsgQDependency);
|
|
409 |
}
|
|
410 |
else
|
|
411 |
{
|
|
412 |
UnLock();
|
|
413 |
req->ResourceId() = aResourceId;
|
|
414 |
req->ClientId() = KDynamicResourceDeRegistering;
|
|
415 |
req->Resource() = pDR;
|
|
416 |
req->ResourceCb() = NULL;
|
|
417 |
if(aPDefLevel)
|
|
418 |
req->Level() = *aPDefLevel; //Set the resource to the passed level
|
|
419 |
else
|
|
420 |
req->Level() = pDR->iDefaultLevel; //Set the resource level to default level
|
|
421 |
if(pDR->LatencySet())
|
|
422 |
{
|
|
423 |
r = req->SendReceive(iMsgQ);
|
|
424 |
}
|
|
425 |
else
|
|
426 |
{
|
|
427 |
//Call custom function for custom sense resource
|
|
428 |
if(pDR->Sense() == DStaticPowerResource::ECustom)
|
|
429 |
{
|
|
430 |
if(!pDR->iCustomFunction)
|
|
431 |
Panic(ECustomFunctionNotSet);
|
|
432 |
pDR->iCustomFunction(req->ClientId(), *(aClientPtr->iName), aResourceId,
|
|
433 |
EDynamicResourceDeregister, req->Level(),
|
|
434 |
(TAny*)&pDR->iClientList, NULL);
|
|
435 |
}
|
|
436 |
//Not checking for error condition as the resource needs to be moved to default state
|
|
437 |
if(aPDefLevel)
|
|
438 |
{
|
|
439 |
//If the resource change to requested level fails trying to change it to default level.
|
|
440 |
req->ReqType() = TPowerRequest::EChange;
|
|
441 |
r = pDR->DoRequest(*req);
|
|
442 |
if(r != KErrNone)
|
|
443 |
{
|
|
444 |
req->ReqType() = TPowerRequest::ESetDefaultLevel;
|
|
445 |
req->Level() = pDR->iDefaultLevel;
|
|
446 |
pDR->DoRequest(*req);
|
|
447 |
}
|
|
448 |
}
|
|
449 |
else
|
|
450 |
pDR->DoRequest(*req);
|
|
451 |
//Send notifications. Passing -2 in clientId to indicate that this dynamic resource is deregistering
|
|
452 |
CompleteNotifications(KDynamicResourceDeRegistering, pDR, req->Level(),KErrNone, req->ClientId());
|
|
453 |
}
|
|
454 |
}
|
|
455 |
Lock();
|
|
456 |
//Remove client level
|
|
457 |
SPowerResourceClientLevel *pCL;
|
|
458 |
SPowerResourceClient *pC;
|
|
459 |
for(SDblQueLink* pRC = pDR->iClientList.First(); pRC != &pDR->iClientList.iA; pRC = pRC->iNext)
|
|
460 |
{
|
|
461 |
pCL = (SPowerResourceClientLevel*)pRC;
|
|
462 |
if(pCL->iClientId & USER_SIDE_CLIENT_BIT_MASK)
|
|
463 |
pC = iUserSideClientList[(TUint16)(pCL->iClientId & ID_INDEX_BIT_MASK)];
|
|
464 |
else
|
|
465 |
pC = iClientList[(TUint16)(pCL->iClientId & ID_INDEX_BIT_MASK)];
|
|
466 |
LIST_REMOVE(pC->iLevelList, pCL, iNextInList, SPowerResourceClientLevel);
|
|
467 |
LIST_PUSH(iClientLevelPool, pCL, iNextInList);
|
|
468 |
if(pC->iUnderFlowClCount > 0)
|
|
469 |
{
|
|
470 |
pC->iUnderFlowClCount--;
|
|
471 |
iClientLevelPoolCount++;
|
|
472 |
}
|
|
473 |
else
|
|
474 |
pC->iReservedCl++;
|
|
475 |
}
|
|
476 |
//Decrement dynamic resource count in client
|
|
477 |
aClientPtr->iDynamicResCount--;
|
|
478 |
if(aResourceId & KIdMaskResourceWithDependencies)
|
|
479 |
{
|
|
480 |
iDynamicResDependencyList.Remove((DDynamicPowerResourceD*)pDR, (TUint16)(pDR->iResourceId & ID_INDEX_BIT_MASK));
|
|
481 |
iDynamicResDependencyCount--;
|
|
482 |
}
|
|
483 |
else
|
|
484 |
{
|
|
485 |
iDynamicResourceList.Remove(pDR, (TUint16)(pDR->iResourceId & ID_INDEX_BIT_MASK));
|
|
486 |
iDynamicResourceCount--;
|
|
487 |
}
|
|
488 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("<DExtendedResourceController::DeregisterDynamicResource"));
|
|
489 |
#ifdef PRM_INSTRUMENTATION_MACRO
|
|
490 |
TInt level = req->Level();
|
|
491 |
PRM_DEREGISTER_DYNAMIC_RESOURCE_TRACE
|
|
492 |
#endif
|
|
493 |
return r;
|
|
494 |
}
|
|
495 |
|
|
496 |
/**
|
|
497 |
@publishedPartner
|
|
498 |
@prototype 9.6
|
|
499 |
Default implementation, PSL re-implements this if features supported.
|
|
500 |
*/
|
|
501 |
TInt DPowerResourceController::DoRegisterStaticResourcesDependency(DStaticPowerResourceD**& aStaticResourceDArray,
|
|
502 |
TUint16& aStaticResourceDCount)
|
|
503 |
{
|
|
504 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("DExtendedResourceController::DoRegisterStaticResourcesDependency default \
|
|
505 |
implementation"));
|
|
506 |
aStaticResourceDArray = NULL;
|
|
507 |
aStaticResourceDCount = 0;
|
|
508 |
return KErrNone;
|
|
509 |
}
|
|
510 |
|
|
511 |
/**
|
|
512 |
This function checks for any closed loop dependency, if so panics.
|
|
513 |
*/
|
|
514 |
void DPowerResourceController::CheckForDependencyLoop(DStaticPowerResourceD* pR, TUint aParentResId, TUint aTargetResId)
|
|
515 |
{
|
|
516 |
SNode *pN;
|
|
517 |
|
|
518 |
if(pR->iResourceId & KIdMaskDynamic)
|
|
519 |
pN = ((DDynamicPowerResourceD*)pR)->iDependencyList;
|
|
520 |
else
|
|
521 |
pN = pR->iDependencyList;
|
|
522 |
|
|
523 |
for(; pN != NULL; pN = pN->iNext)
|
|
524 |
{
|
|
525 |
if(pN->iResource->iResourceId == aParentResId)
|
|
526 |
continue;
|
|
527 |
if(pN->iVisited || (pN->iResource->iResourceId == aTargetResId))
|
|
528 |
{
|
|
529 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("Loop encountered\n"));
|
|
530 |
DPowerResourceController::Panic(DPowerResourceController::EClosedLoopDependencies);
|
|
531 |
}
|
|
532 |
pN->iVisited = ETrue;
|
|
533 |
CheckForDependencyLoop(pN->iResource, pR->iResourceId, aTargetResId);
|
|
534 |
pN->iVisited = EFalse;
|
|
535 |
}
|
|
536 |
}
|
|
537 |
|
|
538 |
/**
|
|
539 |
This is called from the controller thread to handle the dependency resource state change operation.
|
|
540 |
*/
|
|
541 |
TInt DPowerResourceController::HandleDependencyResourceStateChange(SPowerResourceClient* pC, TPowerRequest& aRequest)
|
|
542 |
{
|
|
543 |
DStaticPowerResourceD* pR = (DStaticPowerResourceD*)aRequest.Resource();
|
|
544 |
if(aRequest.ReqType() == TPowerRequest::EChange) //Handle resource change operation
|
|
545 |
{
|
|
546 |
if(aRequest.Resource()->Usage()) //Shared resource
|
|
547 |
{
|
|
548 |
Lock();
|
|
549 |
aRequest.ReturnCode() = CheckLevelAndAddClient(pC, &aRequest);
|
|
550 |
UnLock();
|
|
551 |
if((aRequest.ReturnCode()!= KErrNone) || (!aRequest.RequiresChange()))
|
|
552 |
{
|
|
553 |
aRequest.Level() = pR->iCachedLevel; //If no change then send the current level back.
|
|
554 |
return aRequest.ReturnCode();
|
|
555 |
}
|
|
556 |
}
|
|
557 |
else if(pR->iClientList.IsEmpty())
|
|
558 |
{
|
|
559 |
Lock();
|
|
560 |
if(pC->iReservedCl==0 && !iClientLevelPoolCount)
|
|
561 |
{
|
|
562 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("Reserved Client Level exhausted and its free pool empty"));
|
|
563 |
aRequest.ReturnCode() = KErrUnderflow;
|
|
564 |
UNLOCK_RETURN(KErrUnderflow);
|
|
565 |
}
|
|
566 |
SPowerResourceClientLevel* pSCL=NULL;
|
|
567 |
LIST_POP(iClientLevelPool, pSCL, iNextInList);
|
|
568 |
pSCL->iClientId=pC->iClientId;
|
|
569 |
pSCL->iResourceId=aRequest.ResourceId();
|
|
570 |
pSCL->iLevel=aRequest.Level();
|
|
571 |
LIST_PUSH(pC->iLevelList, pSCL, iNextInList); //Add to client
|
|
572 |
pR->iClientList.Add(pSCL); //Add in resource
|
|
573 |
if(pC->iReservedCl==0)
|
|
574 |
{
|
|
575 |
iClientLevelPoolCount--;
|
|
576 |
pC->iUnderFlowClCount++;
|
|
577 |
}
|
|
578 |
else
|
|
579 |
pC->iReservedCl--;
|
|
580 |
if(pR->iCachedLevel == aRequest.Level())
|
|
581 |
{
|
|
582 |
pR->iLevelOwnerId = aRequest.ClientId();
|
|
583 |
if(pR->iIdleListEntry)
|
|
584 |
pR->iIdleListEntry->iLevelOwnerId = aRequest.ClientId();
|
|
585 |
aRequest.ReturnCode() = KErrNone;
|
|
586 |
UNLOCK_RETURN(KErrNone);
|
|
587 |
}
|
|
588 |
UnLock();
|
|
589 |
}
|
|
590 |
else
|
|
591 |
{
|
|
592 |
//Update the level in the client list.
|
|
593 |
SPowerResourceClientLevel* pSCL = (SPowerResourceClientLevel*)pR->iClientList.First();
|
|
594 |
pSCL->iLevel = aRequest.Level();
|
|
595 |
}
|
|
596 |
//Call appropriate resource's handle change propagation function
|
|
597 |
if(pR->iResourceId & KIdMaskDynamic)
|
|
598 |
aRequest.ReturnCode() = ((DDynamicPowerResourceD*)pR)->HandleChangePropagation(aRequest, EChangeStart, pC->iClientId, *(pC->iName));
|
|
599 |
else
|
|
600 |
aRequest.ReturnCode() = pR->HandleChangePropagation(aRequest, EChangeStart,pC->iClientId, *(pC->iName));
|
|
601 |
return aRequest.ReturnCode();
|
|
602 |
}
|
|
603 |
if(aRequest.ClientId() == -1) //Special where the resource needs to set to default level, when dynamic resource deregisters
|
|
604 |
{
|
|
605 |
//If resource is asked to change to certain value, instead of default then
|
|
606 |
//try to set it to that value. If not able to set then try to set it to default level.
|
|
607 |
if(aRequest.Level() != pR->iDefaultLevel)
|
|
608 |
aRequest.ReqType() = TPowerRequest::EChange;
|
|
609 |
aRequest.ReturnCode() = pR->DoRequest(aRequest);
|
|
610 |
if((aRequest.ReturnCode() != KErrNone) && (aRequest.ReqType() == TPowerRequest::EChange))
|
|
611 |
{
|
|
612 |
aRequest.ReqType() = TPowerRequest::ESetDefaultLevel;
|
|
613 |
aRequest.Level() = pR->iDefaultLevel;
|
|
614 |
pR->DoRequest(aRequest);
|
|
615 |
}
|
|
616 |
//Set clientId to -2, indicating that the resource is deregistered.
|
|
617 |
CompleteNotifications(KDynamicResourceDeRegistering, pR, aRequest.Level(), KErrNone, aRequest.ClientId());
|
|
618 |
return KErrNone;
|
|
619 |
}
|
|
620 |
//Handle custom sense resource
|
|
621 |
if(aRequest.Resource()->Sense() == DStaticPowerResource::ECustom)
|
|
622 |
{
|
|
623 |
if(pR->iResourceId & KIdMaskDynamic)
|
|
624 |
{
|
|
625 |
aRequest.RequiresChange() = ((DDynamicPowerResourceD*)pR)->iDepCustomFunction(aRequest.ClientId(), *(pC->iName), aRequest.ResourceId(),
|
|
626 |
EClientRelinquishLevel, aRequest.Level(), (TAny*)&pR->iClientList,
|
|
627 |
(TAny*)&((DDynamicPowerResourceD*)pR)->iResourceClientList, NULL);
|
|
628 |
}
|
|
629 |
else
|
|
630 |
{
|
|
631 |
aRequest.RequiresChange() = pR->iDepCustomFunction(aRequest.ClientId(), *(pC->iName), aRequest.ResourceId(),
|
|
632 |
EClientRelinquishLevel, aRequest.Level(), (TAny*)&pR->iClientList,
|
|
633 |
(TAny*)&pR->iResourceClientList, NULL);
|
|
634 |
}
|
|
635 |
}
|
|
636 |
else
|
|
637 |
{
|
|
638 |
SPowerResourceClientLevel* pL = NULL;
|
|
639 |
SPowerResourceClientLevel* pMCL = NULL;
|
|
640 |
TInt maxLevel = KMinTInt;
|
|
641 |
//Find the maximum level from client
|
|
642 |
for(SDblQueLink* pCL = pR->iClientList.First(); pCL != &pR->iClientList.iA; pCL = pCL->iNext)
|
|
643 |
{
|
|
644 |
pL = (SPowerResourceClientLevel*)pCL;
|
|
645 |
if(pL->iClientId == (TUint)aRequest.ClientId())
|
|
646 |
continue;
|
|
647 |
if(pMCL == NULL)
|
|
648 |
{
|
|
649 |
maxLevel = pL->iLevel;
|
|
650 |
pMCL = pL;
|
|
651 |
continue;
|
|
652 |
}
|
|
653 |
if(((pR->Sense() == DStaticPowerResource::ENegative) && (pL->iLevel < maxLevel)) ||
|
|
654 |
((pR->Sense() == DStaticPowerResource::EPositive) && (pL->iLevel > maxLevel)))
|
|
655 |
{
|
|
656 |
maxLevel = pL->iLevel;
|
|
657 |
pMCL = pL;
|
|
658 |
}
|
|
659 |
}
|
|
660 |
//Find the maximum level from resource client level
|
|
661 |
if(pR->iResourceId & KIdMaskDynamic)
|
|
662 |
pL = ((DDynamicPowerResourceD*)pR)->iResourceClientList;
|
|
663 |
else
|
|
664 |
pL = pR->iResourceClientList;
|
|
665 |
for(; pL != NULL; pL = pL->iNextInList)
|
|
666 |
{
|
|
667 |
if(pL->iClientId == (TUint)aRequest.ClientId())
|
|
668 |
continue;
|
|
669 |
if(pMCL == NULL)
|
|
670 |
{
|
|
671 |
maxLevel = pL->iLevel;
|
|
672 |
pMCL = pL;
|
|
673 |
continue;
|
|
674 |
}
|
|
675 |
if(((pR->Sense() == DStaticPowerResource::ENegative) && (pL->iLevel < maxLevel)) ||
|
|
676 |
((pR->Sense() == DStaticPowerResource::EPositive) && (pL->iLevel > maxLevel)))
|
|
677 |
{
|
|
678 |
maxLevel = pL->iLevel;
|
|
679 |
pMCL = pL;
|
|
680 |
}
|
|
681 |
}
|
|
682 |
if(pMCL == NULL)
|
|
683 |
{
|
|
684 |
aRequest.ClientId() = -1;
|
|
685 |
aRequest.Level() = pR->iDefaultLevel;
|
|
686 |
}
|
|
687 |
else
|
|
688 |
{
|
|
689 |
aRequest.ClientId() = pMCL->iClientId;
|
|
690 |
aRequest.Level() = maxLevel;
|
|
691 |
}
|
|
692 |
}
|
|
693 |
if((aRequest.Level() == pR->iCachedLevel) && !aRequest.RequiresChange()) //No need to change the resource just update the owner
|
|
694 |
{
|
|
695 |
pR->iLevelOwnerId = aRequest.ClientId();
|
|
696 |
if(pR->iIdleListEntry)
|
|
697 |
pR->iIdleListEntry->iLevelOwnerId = aRequest.ClientId();
|
|
698 |
aRequest.ReturnCode() = KErrNone;
|
|
699 |
return KErrNone;
|
|
700 |
}
|
|
701 |
aRequest.ReqType() = TPowerRequest::EChange; //Make the change otherwise PSL set to default level
|
|
702 |
|
|
703 |
const TDesC8 *name;
|
|
704 |
if(aRequest.ClientId() == -1)
|
|
705 |
name = &KNoClient;
|
|
706 |
else
|
|
707 |
{
|
|
708 |
if(aRequest.ClientId() & (1 << RESOURCE_BIT_IN_ID_CHECK))
|
|
709 |
{
|
|
710 |
DStaticPowerResourceD* pResource;
|
|
711 |
if(aRequest.ClientId() & KIdMaskDynamic)
|
|
712 |
pResource = (DStaticPowerResourceD*)iDynamicResDependencyList[(TUint16)(aRequest.ClientId() & ID_INDEX_BIT_MASK)];
|
|
713 |
else
|
|
714 |
pResource = iStaticResDependencyArray[(TUint16)(aRequest.ClientId() & ID_INDEX_BIT_MASK) - 1];
|
|
715 |
name = pResource->iName;
|
|
716 |
}
|
|
717 |
else
|
|
718 |
{
|
|
719 |
SPowerResourceClient* pClient;
|
|
720 |
if(aRequest.ClientId() & USER_SIDE_CLIENT_BIT_MASK)
|
|
721 |
pClient = iUserSideClientList[(TUint16)(aRequest.ClientId() & ID_INDEX_BIT_MASK)];
|
|
722 |
else // coverity[returned_null]
|
|
723 |
pClient = iClientList[(TUint16)(aRequest.ClientId() & ID_INDEX_BIT_MASK)];
|
|
724 |
name = pClient->iName;
|
|
725 |
}
|
|
726 |
}
|
|
727 |
|
|
728 |
if(pR->iResourceId & KIdMaskDynamic)
|
|
729 |
aRequest.ReturnCode() = ((DDynamicPowerResourceD*)pR)->HandleChangePropagation(aRequest, EChangeStart, aRequest.ClientId(), *name);
|
|
730 |
else
|
|
731 |
aRequest.ReturnCode() = pR->HandleChangePropagation(aRequest, EChangeStart, aRequest.ClientId(), *name);
|
|
732 |
if(aRequest.ReturnCode() == KErrPermissionDenied) //Update the ownerId alone
|
|
733 |
{
|
|
734 |
pR->iLevelOwnerId = aRequest.ClientId();
|
|
735 |
if(pR->iIdleListEntry)
|
|
736 |
pR->iIdleListEntry->iLevelOwnerId = aRequest.ClientId();
|
|
737 |
}
|
|
738 |
return KErrNone;
|
|
739 |
}
|
|
740 |
|
|
741 |
/**
|
|
742 |
Deregisters resource dependency.
|
|
743 |
*/
|
|
744 |
TInt DPowerResourceController::DeregisterResourceDependency(SPowerResourceClient* aClientPtr, TUint aResId1, TUint aResId2)
|
|
745 |
{
|
|
746 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DPowerResourceController::DeregisterResourceDependency"));
|
|
747 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("ClientId = 0x%x, ResourceId1 = 0x%x, ResourceId2 = 0x%x",
|
|
748 |
aClientPtr->iClientId, aResId1, aResId2));
|
|
749 |
if(iDfcQDependencyLock)
|
|
750 |
{
|
|
751 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">DPowerResourceController::RegisterResourceDependency::Resource In Use"));
|
|
752 |
UNLOCK_RETURN(KErrInUse);
|
|
753 |
}
|
|
754 |
DDynamicPowerResourceD *pDR1 = NULL;
|
|
755 |
DDynamicPowerResourceD *pDR2 = NULL;
|
|
756 |
SNode* pN1 = NULL;
|
|
757 |
SNode* pN2 = NULL;
|
|
758 |
SPowerResourceClientLevel* pCL1 = NULL;
|
|
759 |
SPowerResourceClientLevel* pCL2 = NULL;
|
|
760 |
//Get first resource from list
|
|
761 |
if(!(aResId1 & KIdMaskResourceWithDependencies) || !(aResId2 & KIdMaskResourceWithDependencies))
|
|
762 |
UNLOCK_RETURN(KErrAccessDenied);
|
|
763 |
|
|
764 |
if(aResId1 & KIdMaskDynamic)
|
|
765 |
{
|
|
766 |
pDR1 = iDynamicResDependencyList[(TUint16)(aResId1 & ID_INDEX_BIT_MASK)];
|
|
767 |
if(!pDR1)
|
|
768 |
UNLOCK_RETURN(KErrNotFound);
|
|
769 |
pN1 = pDR1->iDependencyList;
|
|
770 |
pCL1 = pDR1->iResourceClientList;
|
|
771 |
}
|
|
772 |
else
|
|
773 |
{
|
|
774 |
if((aResId1 & ID_INDEX_BIT_MASK) > iStaticResDependencyCount)
|
|
775 |
UNLOCK_RETURN(KErrNotFound);
|
|
776 |
pDR1 = (DDynamicPowerResourceD*)iStaticResDependencyArray[(aResId1 & ID_INDEX_BIT_MASK) - 1];
|
|
777 |
pN1 = ((DStaticPowerResourceD*)pDR1)->iDependencyList;
|
|
778 |
pCL1 = ((DStaticPowerResourceD*)pDR1)->iResourceClientList;
|
|
779 |
}
|
|
780 |
|
|
781 |
//Get second resource from list
|
|
782 |
if(aResId2 & KIdMaskDynamic)
|
|
783 |
{
|
|
784 |
pDR2 = iDynamicResDependencyList[(TUint16)(aResId2 & ID_INDEX_BIT_MASK)];
|
|
785 |
if(!pDR2)
|
|
786 |
UNLOCK_RETURN(KErrNotFound);
|
|
787 |
pN2 = pDR2->iDependencyList;
|
|
788 |
pCL2 = pDR2->iResourceClientList;
|
|
789 |
}
|
|
790 |
else
|
|
791 |
{
|
|
792 |
if((aResId2 & ID_INDEX_BIT_MASK)> iStaticResDependencyCount)
|
|
793 |
UNLOCK_RETURN(KErrNotFound);
|
|
794 |
pDR2 = (DDynamicPowerResourceD*)iStaticResDependencyArray[(TUint16)(aResId2 & ID_INDEX_BIT_MASK) - 1];
|
|
795 |
pN2 = ((DStaticPowerResourceD*)pDR2)->iDependencyList;
|
|
796 |
pCL2 = ((DStaticPowerResourceD*)pDR2)->iResourceClientList;
|
|
797 |
}
|
|
798 |
|
|
799 |
//Check whether dependency exist between the two
|
|
800 |
SNode* pN = NULL;
|
|
801 |
for(pN = pN1; pN != NULL; pN = pN->iNext)
|
|
802 |
{
|
|
803 |
if(pN->iResource->iResourceId == pDR2->iResourceId)
|
|
804 |
break;
|
|
805 |
}
|
|
806 |
if(pN == NULL)
|
|
807 |
UNLOCK_RETURN(KErrNotFound);
|
|
808 |
pN1 = pN; //Storing for later use.
|
|
809 |
for(pN = pN2; pN != NULL; pN = pN->iNext)
|
|
810 |
{
|
|
811 |
if(pN->iResource->iResourceId == pDR1->iResourceId)
|
|
812 |
break;
|
|
813 |
}
|
|
814 |
if(pN == NULL)
|
|
815 |
return KErrNotFound;
|
|
816 |
pN2 = pN; //Storing for later use
|
|
817 |
//Remove the dependency link from both the resource
|
|
818 |
if(aResId1 & KIdMaskDynamic)
|
|
819 |
{
|
|
820 |
LIST_REMOVE(pDR1->iDependencyList, pN1, iNext, SNode);
|
|
821 |
}
|
|
822 |
else
|
|
823 |
{
|
|
824 |
LIST_REMOVE(((DStaticPowerResourceD*)pDR1)->iDependencyList, pN1, iNext, SNode);
|
|
825 |
}
|
|
826 |
|
|
827 |
if(aResId2 & KIdMaskDynamic)
|
|
828 |
{
|
|
829 |
LIST_REMOVE(pDR2->iDependencyList, pN2, iNext, SNode);
|
|
830 |
}
|
|
831 |
else
|
|
832 |
{
|
|
833 |
LIST_REMOVE(((DStaticPowerResourceD*)pDR2)->iDependencyList, pN2, iNext, SNode);
|
|
834 |
}
|
|
835 |
|
|
836 |
//Remove the resource client level from each resource
|
|
837 |
for(; pCL1 != NULL; pCL1 = pCL1->iNextInList)
|
|
838 |
{
|
|
839 |
if(pCL1->iClientId == pDR2->iResourceId)
|
|
840 |
{
|
|
841 |
if(aResId1 & KIdMaskDynamic)
|
|
842 |
{
|
|
843 |
LIST_REMOVE(pDR1->iResourceClientList, pCL1, iNextInList, SPowerResourceClientLevel);
|
|
844 |
}
|
|
845 |
else
|
|
846 |
{
|
|
847 |
LIST_REMOVE(((DStaticPowerResourceD*)pDR1)->iResourceClientList, pCL1, iNextInList,
|
|
848 |
SPowerResourceClientLevel);
|
|
849 |
}
|
|
850 |
LIST_PUSH(iResourceLevelPool, pCL1, iNextInList);
|
|
851 |
iResourceLevelPoolCount++;
|
|
852 |
break;
|
|
853 |
}
|
|
854 |
}
|
|
855 |
for(; pCL2 != NULL; pCL2 = pCL2->iNextInList)
|
|
856 |
{
|
|
857 |
if(pCL2->iClientId == pDR1->iResourceId)
|
|
858 |
{
|
|
859 |
if(aResId2 & KIdMaskDynamic)
|
|
860 |
{
|
|
861 |
LIST_REMOVE(pDR2->iResourceClientList, pCL2, iNextInList, SPowerResourceClientLevel);
|
|
862 |
}
|
|
863 |
else
|
|
864 |
{
|
|
865 |
LIST_REMOVE(((DStaticPowerResourceD*)pDR2)->iResourceClientList, pCL2, iNextInList,
|
|
866 |
SPowerResourceClientLevel);
|
|
867 |
}
|
|
868 |
LIST_PUSH(iResourceLevelPool, pCL2, iNextInList);
|
|
869 |
iResourceLevelPoolCount++;
|
|
870 |
break;
|
|
871 |
}
|
|
872 |
}
|
|
873 |
|
|
874 |
TPowerRequest* req = (TPowerRequest*)&TPowerRequest::Get();
|
|
875 |
req->ResourceCb() = NULL;
|
|
876 |
req->ReqType() = TPowerRequest::ESetDefaultLevel;
|
|
877 |
req->RequiresChange() = EFalse;
|
|
878 |
req->ReturnCode() = KErrNone;
|
|
879 |
if((TUint)pDR1->iLevelOwnerId == pDR2->iResourceId)
|
|
880 |
{
|
|
881 |
//Ask to change to default level. Process this in the RC thread;
|
|
882 |
req->ResourceId() = pDR1->iResourceId;
|
|
883 |
req->ClientId() = pDR2->iResourceId;
|
|
884 |
req->Resource() = pDR1;
|
|
885 |
req->Level() = pDR1->iDefaultLevel;
|
|
886 |
if(aResId1 & KIdMaskDynamic)
|
|
887 |
pDR1->Lock();
|
|
888 |
UnLock();
|
|
889 |
req->SendReceive(iMsgQDependency);
|
|
890 |
Lock();
|
|
891 |
if(aResId1 & KIdMaskDynamic)
|
|
892 |
pDR1->UnLock();
|
|
893 |
}
|
|
894 |
if((TUint)pDR2->iLevelOwnerId == pDR1->iResourceId)
|
|
895 |
{
|
|
896 |
//Ask to change to default level. Process this in the RC thread.
|
|
897 |
req->ResourceId() = pDR2->iResourceId;
|
|
898 |
req->ClientId() = pDR1->iResourceId;
|
|
899 |
req->Resource() = pDR2;
|
|
900 |
req->Level() = pDR2->iDefaultLevel;
|
|
901 |
if(aResId2 & KIdMaskDynamic)
|
|
902 |
pDR2->Lock();
|
|
903 |
UnLock();
|
|
904 |
req->SendReceive(iMsgQDependency);
|
|
905 |
Lock();
|
|
906 |
if(aResId2 & KIdMaskDynamic)
|
|
907 |
pDR2->UnLock();
|
|
908 |
}
|
|
909 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("<DPowerResourceController::DeregisterResourceDependency"));
|
|
910 |
#ifdef PRM_INSTRUMENTATION_MACRO
|
|
911 |
PRM_DEREGISTER_RESOURCE_DEPENDENCY_TRACE
|
|
912 |
#endif
|
|
913 |
UnLock();
|
|
914 |
delete pN1;
|
|
915 |
delete pN2;
|
|
916 |
return KErrNone;
|
|
917 |
}
|
|
918 |
|
|
919 |
/**
|
|
920 |
This function takes care of resource state change of static dependency resource.
|
|
921 |
This propagates the change to all of its dependents.
|
|
922 |
This function takes Originator name and id as parameter as this needs to be passed for custom sense function.
|
|
923 |
*/
|
|
924 |
TInt DStaticPowerResourceD::HandleChangePropagation(TPowerRequest aRequest, TPropagation aProp, TUint aOriginatorId, const TDesC8& aOriginatorName)
|
|
925 |
{
|
|
926 |
static TUint16 clientLevelCount = 0;
|
|
927 |
DStaticPowerResourceD* pDR = (DStaticPowerResourceD*)aRequest.Resource();
|
|
928 |
TInt result = KErrNone;
|
|
929 |
TInt resState;
|
|
930 |
TPowerRequest depRequest;
|
|
931 |
depRequest.ReqType() = TPowerRequest::EChange;
|
|
932 |
depRequest.ResourceCb() = NULL;
|
|
933 |
depRequest.ReturnCode() = KErrNone;
|
|
934 |
depRequest.RequiresChange() = EFalse;
|
|
935 |
DStaticPowerResourceD* pDepRes = NULL;
|
|
936 |
TBool traceEnabled = EFalse;
|
|
937 |
#ifdef PRM_INSTRUMENTATION_MACRO
|
|
938 |
traceEnabled = ETrue;
|
|
939 |
#endif
|
|
940 |
HANDLE_CHANGE_PROPAGATION(PowerResourceController, DStaticPowerResourceD*, traceEnabled, aOriginatorId, aOriginatorName)
|
|
941 |
}
|
|
942 |
|
|
943 |
|