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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\resourceman.cpp
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//
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//
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#include <drivers/resourcecontrol.h>
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#include <drivers/resourceman.h>
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/**
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@publishedPartner
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@prototype 9.5
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Register a client with the resource manager
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@param aClientId A reference to a client ID: returns a unique handle if registration was
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successful, 0 otherwise.
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@param aName Descriptor with name for client. The descriptor is created by the client
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in kernel heap or in kernel stack.
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NOTE: Name should ideally relate to component name and should take care
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of name uniqueness as this is not checked by resource manager unless
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DEBUG_VERSION macro is enabled.
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@param aType Defines ownership
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EOwnerProcess - The client ID can be used by all thread in the process to
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call the resource manager API's
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EOwnerThread - The client ID can only be used by the thread that registered
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the client to resource manager to call the PRM API's
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By default this is set to EOwnerProcess.
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@return KErrNone if the operation was successful,
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KErrNoMemory if a new client link was needed but could not be created and
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added to the client list,
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KErrTooBig if the length of the descriptor passed is greater than 32.
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KErrAlreadyExists if the specified name already exists. This is valid only if
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DEBUG_VERSION macro is enabled.
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KErrNotSupported if the number of expected kernel side clients is set to zero
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by PSL during initialisation.
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@pre Interrupts must be enabled.
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@pre Kernel must be unlocked.
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@pre No fast mutex can be held.
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@pre Call in a thread context, but not from null thread or DFC thread1.
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::RegisterClient(TUint& aClientId, const TDesC8& aName, TOwnerType aType)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::RegisterClient"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("Client Name %S", &aName));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("OwnerType %d", aType));
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return TInterface::RegisterClient(aClientId, aName, aType);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Deregister a client with the resource manager
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@param aClientId The ID of the client which is being deregistered
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@return KErrNone if the operation was successful
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KErrNotFound if this client ID could not be found in the current
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list of clients
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KErrArgument if user side client ID is specified or client ID to be used
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by Power Controller is specified.
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KErrAccessDenied if client was registered to be thread relative and this API
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is not called from the same thread.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::DeRegisterClient(TUint aClientId)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::DeRegisterClient"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("Client ID %d", aClientId));
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return TInterface::DeRegisterClient(aClientId);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Obtain the name of a registered client of the resource manager
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@param aClientId The ID of the client which is requesting the name of
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another client whose ID is specified in aTargetClientId.
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@param aTargetClientId The ID of the client whose name is being requested.
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@param aName Descriptor to be filled with the name of the client.
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The descriptor is created by the client in kernel stack or heap.
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@return KErrNone if the operation was successful
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KErrNotFound if this client ID (aTargetClientId) could not be
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found in the current list of registered clients.
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KErrAccessDenied if the client ID (aClientId) could not be found
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in the current list of registered clients or if the client was
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registered to be thread relative and this API is not called from
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the same thread.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetClientName(TUint aClientId, TUint aTargetClientId, TDes8&
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aName)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetClientName"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aTargetClientId 0x%08x", aTargetClientId));
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return TInterface::GetClientName(aClientId, aTargetClientId, aName);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Obtain the Id of registered client of the resource manager
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@param aClientId ID of the client which is requesting the ID of the another
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client whose name is specified in aClientName
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@param aClientName Descriptor containing the name of the client whose ID is being
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requested. The client must create the descriptor in kernel stack
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or heap.
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NOTE: Resource manager does not check for uniqueness of client
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name during registration, so if there are multiple clients registered
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to PRM with same name it will return the ID of the first client encountered
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with the specified name (order is not guaranteed).
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@param aTargetClientId Updates with ID of the requested client on success
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@return KErrNone if the operation was successful
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KErrNotFound if this client name could not be found in the current list
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of registered client.
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KErrAccessDenied if the client ID (aClientId) could not be found in the current
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list of registered client or if the client was registered to
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be thread relative and this API is not called from the same thread.
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KErrTooBig if the length of the descriptor passed is greater than 32.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetClientId(TUint aClientId, TDesC8& aClientName, TUint& aTargetClientId)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetClientId"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientName %S", &aClientName));
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return TInterface::GetClientId(aClientId, aClientName, aTargetClientId);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Obtain the ID of registered resource of the resource manager.
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NOTE: ID of the first matching name found in the resource list will be returned
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@param aClientId ID of the client which is requesting the ID of the
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resource, by specifying its name.
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@param aResourceName Descriptor containing the name of the resource whose
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ID is being requested.The client must create descriptor in
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kernel stack or heap.
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@param aResourceId Updates with ID of the requested resource on success
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@return KErrNone if the operation was successful
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KErrAccessDenied if the ID of the client could not be found in the
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current list of registered clients or if the client was
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registered to be thread relative and this API is not called
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from the same thread.
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KErrNotFound if this resource name could not be found in the current
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list of registered resources.
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KErrTooBig if the length of the descriptor passed is greater than 32.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetResourceId(TUint aClientId, TDesC8& aResourceName, TUint& aResourceId)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetResourceId"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceName %S", &aResourceName));
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return TInterface::GetResourceId(aClientId, aResourceName, aResourceId);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Request a structure containing information on a resource.
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@param aClientId ID of the client which is requesting the resource information
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@param aResourceId ID of the resource whose information is being requested.
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@param aInfo A pointer to descriptor containing resource information
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structure (TPowerResourceInfoV01) to be filled in
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with the requested resource information. The client must
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create the descriptor in kernel stack or heap.
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@return KErrNone if the operation was successful
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KErrAccessDenied if the client ID could not be found in the current list
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of registered clients or if the client was registered to be
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thread relative and this API is not called from the same thread.
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KErrNotFound if this resource ID could not be found in the current list
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of controllable resource.
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KErrArgument if aInfo is NULL or size of descriptor passed is less than size of
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TPowerResourceInfoV01.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetResourceInfo(TUint aClientId, TUint aResourceId, TAny* aInfo)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetResourceInfo"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
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return TInterface::GetResourceInfo(aClientId, aResourceId, aInfo);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Request number of resources that the specified client (aTargetClientId) has
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requirement on resource level. Client ID starts from 1, so if 0 is specified in
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aTargetClientId, returns the total number of controllable resources registered with PRM.
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@param aClientId ID of the client that is requesting the number of resources for which
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the specified client (aTargetClientId) holds requirement on the
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resource level change.
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@param aTargetClientId ID of the client for which the number of resources that it
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has requested a level on is to be returned.
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@param aNumResource Updated with the number of resources that the specified client
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has requirement on resource level change, if valid client
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ID is passed. If client ID is 0, updates the total number
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of resources registered with resource manager.
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@return KErrNone if the operation was successful.
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KErrAccessDenied if the client ID (aClientId) could not be found in the
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current list of registered clients or if the client was registered
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to be thread relative and this API is not called from the same thread.
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KErrNotFound if the client ID (aTargetClientId) could not be found in the
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current list of registered clients and is not 0.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetNumResourcesInUseByClient(TUint aClientId, TUint aTargetClientId,
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TUint& aNumResource)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetNumResourcesInUseByClient"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aTargetClientId 0x%08x", aTargetClientId));
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return TInterface::GetNumResourcesInUseByClient(aClientId, aTargetClientId, aNumResource);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Request information on resources.
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If client ID (aTargetClientId) is valid, aInfo is updated with the information
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of the resources that this client requested a resource level.
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If client ID (aTargetClientId) is 0, aInfo is updated with the information of all the resources
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registered with resource controller.
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The number of resources for which information will be provided will be equal or less than
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the number specified in aNumResources.
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@param aClientId ID of the client which is requesting the resource information.
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@param aTargetClientId ID of the client. The information of all the resources on
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which it has requirement on resource level change is requested.
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Client ID starts from 1, so calling this API with client ID 0 will
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fill the details of all the controllable resource registered with
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resource manager starting from resource ID 1.
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@param aNumResources Number of resource whose information needs to be filled in aInfo i.e,
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it specifies the size of aInfo array.
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@param aInfo A pointer to an array of descriptor containing an information structure
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(TPowerResourceInfoV01) to be filled in with the information
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on the resources. It will be assumed that array allocated will be equal
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to the number passed in aNumResources. The client must create the array
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in Kernel stack or heap.
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@return KErrNone if the operation was successful
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KErrAccessDenied if client ID (aClientId) could not be found in the registered
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client list or if the client was registered to be thread relative
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and this API is not called from the same thread.
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KErrNotFound if client ID (aTargetClientId) could not be found in the current list
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of registered client and is also not 0.
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KErrArgument if aNumResources is 0 or aInfo is NULL or if size of aInfo is not
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sufficient to hold the resource information of number of resources
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specified in aNumResource.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetInfoOnResourcesInUseByClient(TUint aClientId, TUint aTargetClientId,
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TUint& aNumResource, TAny* aInfo)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetInfoOnResourcesInUseByClient"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aTargetClientId 0x%08x", aTargetClientId));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aNumResource 0x%08x", aNumResource));
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return TInterface::GetInfoOnResourcesInUseByClient(aClientId, aTargetClientId, aNumResource, aInfo);
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}
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/**
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@publishedPartner
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@prototype 9.5
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Request number of clients which has requirements on the resource level change of the specified
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resource. Resource ID starts from 1, so 0 can be used to get the number of clients
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registered with resource manager.
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@param aClientId ID of the client which is requesting number of clients
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holding requirement on specified resource.
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@param aResourceId ID of the resource.
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@param aNumClient Upon success, updated with number of clients having a requirement
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on resource level for the specified resource, if valid resource ID is specified.
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If resource ID is 0, then it is updated with number of clients
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registered with PRM.
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@return KErrNone if the operation was successful
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KErrAccessDenied if the client ID could not found in the current list of
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registered clients or if the client was registered to be thread
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relative and this API is not called from the same thread.
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KErrNotFound If this resource ID could not be found in the current list
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of registered resource and is also not 0.
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@pre Interrupts must be enabled
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@pre Kernel must be unlocked
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@pre No fast mutex can be held
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@pre Call in a thread context but not from null thread or DFC thread1
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@pre Can be used in a device driver
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*/
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EXPORT_C TInt PowerResourceManager::GetNumClientsUsingResource(TUint aClientId, TUint aResourceId, TUint& aNumClients)
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{
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__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetNumClientsUsingResource"));
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__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
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|
366 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
367 |
return TInterface::GetNumClientsUsingResource(aClientId, aResourceId, aNumClients);
|
|
368 |
}
|
|
369 |
|
|
370 |
/**
|
|
371 |
@publishedPartner
|
|
372 |
@prototype 9.5
|
|
373 |
|
|
374 |
Request information on clients
|
|
375 |
If resource ID is valid, aInfo is updated with the information of the clients
|
|
376 |
which have a requirements on the resource level for the specified resource
|
|
377 |
If resource ID is 0, aInfo is updated with the information of the clients registered
|
|
378 |
with resource manager, starting from client ID 1.
|
|
379 |
The number of clients for which information will be provided will be equal to or less
|
|
380 |
than the number specified in a NumClients.
|
|
381 |
|
|
382 |
@param aClientId ID of the client which is requesting the information
|
|
383 |
@param aResourceId Id of the resource.
|
|
384 |
@param aNumClients Number of clients whose information needs to be filled in aInfo
|
|
385 |
ie, it specifies the size of aInfo array.
|
|
386 |
@param aInfo A pointer to an array of descriptor containing an information
|
|
387 |
structure (TPowerClientInfoV01) to be filled in with
|
|
388 |
the information on the client. It will be assumed that array
|
|
389 |
allocated will be equal to the number passed in aNumClients.
|
|
390 |
The Client must create the array of descriptors in kernel stack
|
|
391 |
or heap.
|
|
392 |
|
|
393 |
@return KErrNone if the operation was successful.
|
|
394 |
KErrNotFound if resource ID could not be found in the registered resource list and is
|
|
395 |
also not 0.
|
|
396 |
KErrAccessDenied if client ID (aClientId) could not be found in the registered client list
|
|
397 |
or if the client was registered to be thread relative and this API is not
|
|
398 |
called from the same thread.
|
|
399 |
KErrArgument if aNumClients is 0 or aInfo is NULL or if size of aInfo is not sufficient
|
|
400 |
to hold client information of specified client number in aNumClients.
|
|
401 |
|
|
402 |
@pre Interrupts must be enabled
|
|
403 |
@pre Kernel must be unlocked
|
|
404 |
@pre No fast mutex can be held
|
|
405 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
406 |
@pre Can be used in a device driver
|
|
407 |
*/
|
|
408 |
EXPORT_C TInt PowerResourceManager::GetInfoOnClientsUsingResource(TUint aClientId, TUint aResourceId,
|
|
409 |
TUint& aNumClients, TAny* aInfo)
|
|
410 |
{
|
|
411 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetInfoOnClientsUsingResource"));
|
|
412 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
413 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
414 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aNumClients 0x%08x", aNumClients));
|
|
415 |
return TInterface::GetInfoOnClientsUsingResource(aClientId, aResourceId, aNumClients, aInfo);
|
|
416 |
}
|
|
417 |
|
|
418 |
/**
|
|
419 |
@publishedPartner
|
|
420 |
@prototype 9.5
|
|
421 |
|
|
422 |
Request changing the state of a resource
|
|
423 |
NOTE: If a resource callback is specified for instantaneous resource, then callback
|
|
424 |
will be called after resource change and will be executed in the context of the
|
|
425 |
client thread.
|
|
426 |
If a resource callback is specified for long latency reosurces, then it will be
|
|
427 |
executed asynchronously.
|
|
428 |
When the request is accepted the API returns immediately and the calling thread
|
|
429 |
is unblocked: the callback (called in the client's context) will be invoked when
|
|
430 |
the resource change finally takes place.
|
|
431 |
If aCb is not specified (NULL by default) the API executes synchronously and will
|
|
432 |
only return when the resource change has taken place for long latency resource.
|
|
433 |
The client thread is blocked throughout
|
|
434 |
When state change for a shared resource is requested, only minimum state that
|
|
435 |
satisfy the requirement is guaranteed and it is not guaranteed for the absolute
|
|
436 |
value change.
|
|
437 |
|
|
438 |
@param aClientId ID of the client which is requesting the resource change.
|
|
439 |
@param aResourceId ID of the resource whose state is to be changed.
|
|
440 |
@param aNewState The new state of the resource. This could be a binary value for a
|
|
441 |
binary resource, an integer level for a multilevel resource or some
|
|
442 |
platform specific token for a multi-property resource.
|
|
443 |
@param aCb For Long latency resource
|
|
444 |
A pointer to a resource callback object which encapsulates a
|
|
445 |
callback function to be called whenever the resource state change
|
|
446 |
happens (if left NULL the API will execute synchrounously).
|
|
447 |
For Instantaneous resource
|
|
448 |
A pointer to a resource callback object which encapsulates a callback
|
|
449 |
function to be called after resource change. This executes in the
|
|
450 |
context of the client thread.
|
|
451 |
|
|
452 |
@return KErrNone If the API is to be executed synchronously it indicates the change was
|
|
453 |
successful, if the API is to be executed asynchronously it indicates
|
|
454 |
the request to change the resource state has been accepted.
|
|
455 |
KErrNotFound if the resource ID could not be found in the current list of
|
|
456 |
controllable resources.
|
|
457 |
KErrAccessDenied if the client ID could not be found in the list of
|
|
458 |
registered clients or if the client was registered to be thread
|
|
459 |
relative and this API is not called from the same thread.
|
|
460 |
KErrNotReady if the request is issued before the resource controller completes its
|
|
461 |
internal initialisation.
|
|
462 |
KErrUnderflow if the client has exceeded the reserved number of
|
|
463 |
SPowerResourceClientLevel and the free pool is empty or if it is
|
|
464 |
an asynchronous operation on long latency resource and the client has exceeded
|
|
465 |
the reserved number of TPowerRequest and the free pool is empty.
|
|
466 |
KErrArgument if requested level is out of range (outside of min and max levels)
|
|
467 |
KErrPermissionDenied if the requested state of the resource is not accepted by its dependents.
|
|
468 |
This error is valid only for dependent resource state change in extened
|
|
469 |
version of PRM.
|
|
470 |
|
|
471 |
@pre Interrupts must be enabled
|
|
472 |
@pre Kernel must be unlocked
|
|
473 |
@pre No fast mutex can be held
|
|
474 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
475 |
@pre Can be used in a device driver
|
|
476 |
@pre Do not call synchronous version from DFC thread 0 for long latency resource
|
|
477 |
*/
|
|
478 |
EXPORT_C TInt PowerResourceManager::ChangeResourceState(TUint aClientId , TUint aResourceId,
|
|
479 |
TInt aNewState, TPowerResourceCb* aCb)
|
|
480 |
{
|
|
481 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::ChangeResourceState"));
|
|
482 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
483 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
484 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aNewState 0x%08x", aNewState));
|
|
485 |
return TInterface::ChangeResourceState(aClientId, aResourceId, aNewState, aCb);
|
|
486 |
}
|
|
487 |
|
|
488 |
/**
|
|
489 |
@publishedPartner
|
|
490 |
@prototype 9.5
|
|
491 |
|
|
492 |
Request the state of the resource synchronously. Client thread will be blocked throughout.
|
|
493 |
|
|
494 |
@param aClientId ID of the client which is requesting the resource state.
|
|
495 |
@param aResourceId ID of the resource whose state is being requested.
|
|
496 |
@param aCached If ETrue, cached value will be updated in aState.
|
|
497 |
If EFalse, aState will be updated after the resource
|
|
498 |
state is read from resource.
|
|
499 |
@param aState Returns the resource state if operation was successful. This
|
|
500 |
could be a binary value for a binary resource, an integer level
|
|
501 |
for a multilevel resource or some platform specific tolen for a
|
|
502 |
multi-property resource.
|
|
503 |
@param aLevelOwnerId Returns the Id of the client that is currently the owner of the resource.
|
|
504 |
-1 is returned when no client is owner of the resource.
|
|
505 |
|
|
506 |
@return KErrNone if operation was successful
|
|
507 |
KErrAccessDenied if the client ID could not be found in the current list
|
|
508 |
of registered clients or if the client was registered to be thread
|
|
509 |
relative and this API is not called from the same thread.
|
|
510 |
KErrNotFound if this resource ID could not be found in the current list
|
|
511 |
of controllable resources.
|
|
512 |
KErrNotReady if the request is issued before the resource controller completes
|
|
513 |
its internal initialization.
|
|
514 |
|
|
515 |
@pre Interrupts must be enabled
|
|
516 |
@pre Kernel must be unlocked
|
|
517 |
@pre No fast mutex can be held
|
|
518 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
519 |
@pre Can be used in a device driver
|
|
520 |
@pre Do not call from DFC thread 0 for long latency resource with caching disabled.
|
|
521 |
*/
|
|
522 |
EXPORT_C TInt PowerResourceManager::GetResourceState(TUint aClientId, TUint aResourceId, TBool aCached,
|
|
523 |
TInt& aState, TInt& aLevelOwnerId)
|
|
524 |
{
|
|
525 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetResourceState"));
|
|
526 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
527 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
528 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aCached 0x%08x", aCached));
|
|
529 |
return TInterface::GetResourceState(aClientId, aResourceId, aCached, aState, aLevelOwnerId);
|
|
530 |
}
|
|
531 |
|
|
532 |
/**
|
|
533 |
@publishedPartner
|
|
534 |
@prototype 9.5
|
|
535 |
|
|
536 |
Request the state of the resource asynchrounously.
|
|
537 |
|
|
538 |
@param aClientId ID of the client which is requesting the resource state.
|
|
539 |
@param aResourceId ID of the resource whose state is being requested.
|
|
540 |
@param aCached If ETrue, cached value will be updated in aState
|
|
541 |
If EFalse, will be updated after the resource state is read from resource
|
|
542 |
@param aCb For long latency resource:
|
|
543 |
A pointer to a resource callback object which encapsulates a callback function
|
|
544 |
to be called whenever the state of the resource is available for the long
|
|
545 |
latency resource (executes in the context of resource manager)
|
|
546 |
For instantaneous resource:
|
|
547 |
A pointer to a resource callback object which encapsulates a callback
|
|
548 |
function to be called after the resource state is read. This is executed
|
|
549 |
synchronously in the context of the calling thread.
|
|
550 |
NOTE: The client must create the callback object in kernel heap or
|
|
551 |
data section.
|
|
552 |
|
|
553 |
@return KErrNone if the operation was successful
|
|
554 |
KErrAccessDenied if the client ID could not be found in the current list
|
|
555 |
of registered clients or if the client was registered to be
|
|
556 |
thread relative and this API is not called from the same thread.
|
|
557 |
KErrNotFound if this resource ID could not be found in the current list
|
|
558 |
of controllable resources.
|
|
559 |
KErrNotReady if the request is issued before the resource controller completes
|
|
560 |
its internal initialisation
|
|
561 |
KErrUnderflow if the client has exceeded the reserved number of TPowerRequest
|
|
562 |
and the TPowerRequest free pool is empty for long latency resource.
|
|
563 |
KErrArgument if callback object is NULL.
|
|
564 |
|
|
565 |
@pre Interrupts must be enabled
|
|
566 |
@pre Kernel must be unlocked
|
|
567 |
@pre No fast mutex can be held
|
|
568 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
569 |
@pre Can be used in a device driver
|
|
570 |
*/
|
|
571 |
EXPORT_C TInt PowerResourceManager::GetResourceState(TUint aClientId, TUint aResourceId, TBool aCached, TPowerResourceCb& aCb)
|
|
572 |
{
|
|
573 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::GetResourceState"));
|
|
574 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
575 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
576 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aCached 0x%08x", aCached));
|
|
577 |
return TInterface::GetResourceState(aClientId, aResourceId, aCached, aCb);
|
|
578 |
}
|
|
579 |
|
|
580 |
/**
|
|
581 |
@publishedPartner
|
|
582 |
@prototype 9.5
|
|
583 |
|
|
584 |
Cancel an asynchronous request(or its callback).
|
|
585 |
|
|
586 |
@param aClientId ID of the client which is requesting the cancellation of the request.
|
|
587 |
@param aResourceId ID for the resource which the request that is being cancelled operates
|
|
588 |
upon.
|
|
589 |
@param aCb A reference to the resource callback object specified with the request
|
|
590 |
that is being cancelled.
|
|
591 |
|
|
592 |
@return KErrCancel if the request was cancelled.
|
|
593 |
KErrNotFound if this resource ID could not be found in the current list of
|
|
594 |
controllable resources.
|
|
595 |
KErrCompletion if request is no longer pending.
|
|
596 |
KErrAccessDenied if the client ID could not be found in the current list of registered
|
|
597 |
clients or if the client was registered to be thread relative and this API
|
|
598 |
is not called from the same thread or if client is not the same that
|
|
599 |
requested the resource state change.
|
|
600 |
KErrInUse if the request cannot be cancelled as processing of the request already started
|
|
601 |
and will run to completion.
|
|
602 |
|
|
603 |
@pre Interrupts must be enabled
|
|
604 |
@pre Kernel must be unlocked
|
|
605 |
@pre No fast mutex can be held
|
|
606 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
607 |
@pre Can be used in a device driver
|
|
608 |
*/
|
|
609 |
EXPORT_C TInt PowerResourceManager::CancelAsyncRequestCallBack(TUint aClientId, TUint aResourceId, TPowerResourceCb& aCb)
|
|
610 |
{
|
|
611 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::CancelAsyncRequestCallback"));
|
|
612 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
613 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
614 |
return TInterface::CancelAsyncRequestCallBack(aClientId, aResourceId, aCb);
|
|
615 |
}
|
|
616 |
|
|
617 |
/**
|
|
618 |
@publishedPartner
|
|
619 |
@prototype 9.5
|
|
620 |
|
|
621 |
Request notification of changes to the state of a resource.
|
|
622 |
|
|
623 |
NOTE: This API should return immediately; however the notification will
|
|
624 |
only happen when a resource change occurs.Notification request is idempotent,
|
|
625 |
if the same notification has already been requested for this resource ID,
|
|
626 |
the API returns with no further action. Notifications remain queued until
|
|
627 |
they are cancelled.
|
|
628 |
|
|
629 |
@param aClientId ID of the client which is requesting the notification.
|
|
630 |
@param aResourceId ID of the resource for which notification of state changes
|
|
631 |
is being requested.
|
|
632 |
@param aN A reference to a notification object which encapsulates a callback
|
|
633 |
function to be called whenever a resource state change takes place.
|
|
634 |
NOTE: The client must create the notification object in kernel heap
|
|
635 |
or data section.
|
|
636 |
|
|
637 |
@return KErrNone if the operation of requesting a notification was successful.
|
|
638 |
KErrNotFound if this resource ID could not be found in the current list
|
|
639 |
of controllable resources.
|
|
640 |
KErrAccessDenied if the client ID could not be found in the current
|
|
641 |
list of registered clients or if the client was registered to be thread
|
|
642 |
relative and this API is not called from the same thread.
|
|
643 |
KErrInUse if the passed notification object is used already.
|
|
644 |
|
|
645 |
@pre Interrupts must be enabled
|
|
646 |
@pre Kernel must be unlocked
|
|
647 |
@pre No fast mutex can be held
|
|
648 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
649 |
@pre Can be used in a device driver
|
|
650 |
*/
|
|
651 |
EXPORT_C TInt PowerResourceManager::RequestNotification(TUint aClientId, TUint aResourceId, DPowerResourceNotification& aN)
|
|
652 |
{
|
|
653 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::RequestNotification"));
|
|
654 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
655 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
656 |
return TInterface::RequestNotification(aClientId, aResourceId, aN);
|
|
657 |
}
|
|
658 |
|
|
659 |
/**
|
|
660 |
@publishedPartner
|
|
661 |
@prototype 9.5
|
|
662 |
|
|
663 |
Request notification when the state of a resource reaches a specified threshold or
|
|
664 |
goes above or below that threshold (for multilevel resource only) based on direction.
|
|
665 |
In other words it is issued when a threshold on the specified resource state is crossed
|
|
666 |
in the direction specified.
|
|
667 |
|
|
668 |
NOTE:This API should return immediately; however the notification will only
|
|
669 |
happen when a resource change occurs. Notification request is idempotent,
|
|
670 |
if the same notification has already been requested for this resource ID,
|
|
671 |
the API returns with no further action. Notification remain queued until
|
|
672 |
they are cancelled.
|
|
673 |
|
|
674 |
@param aClientId ID of the client which is requesting the notification.
|
|
675 |
@param aResourceId ID for the resource whose notification of state changes is
|
|
676 |
being requested.
|
|
677 |
@param aN A reference to a notification object which encapsulates a callback
|
|
678 |
function to be called whenever the conditions to issue the notification
|
|
679 |
(specified in the API) are met.
|
|
680 |
NOTE: The client must create the notification object in kernel heap
|
|
681 |
or data section.
|
|
682 |
@param aThreshold The level of the resource state that will trigger the notification
|
|
683 |
when reached.
|
|
684 |
@param aDirection Specifies the direction of change of the resource state that will
|
|
685 |
trigger a notification. EFalse means the notification will be issued
|
|
686 |
when the resource state change to a specified threshold value or below
|
|
687 |
the specified threshold, ETrue means the notification will be issued
|
|
688 |
when the resource state change to a specified threshold value or above
|
|
689 |
the specified threshold.
|
|
690 |
|
|
691 |
@return KErrNone if the operation of requesting a notification was successful.
|
|
692 |
KErrNotFound if this resource ID could not be found in the current list
|
|
693 |
of controllable reosurces.
|
|
694 |
KErrAccessDenied if the client ID could not be found in the list of
|
|
695 |
registered clients or if the client was registered to be
|
|
696 |
thread relative and this API is not called from the same thread.
|
|
697 |
KErrInUse if the passed notification object is used already.
|
|
698 |
KErrArgument if the specified threshold is out of range.
|
|
699 |
|
|
700 |
@pre Interrupts must be enabled
|
|
701 |
@pre Kernel must be unlocked
|
|
702 |
@pre No fast mutex can be held
|
|
703 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
704 |
@pre Can be used in a device driver
|
|
705 |
*/
|
|
706 |
EXPORT_C TInt PowerResourceManager::RequestNotification(TUint aClientId, TUint aResourceId, DPowerResourceNotification& aN,
|
|
707 |
TInt aThreshold, TBool aDirection)
|
|
708 |
{
|
|
709 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::RequestNotification"));
|
|
710 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
711 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
712 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aThreshold 0x%08x", aThreshold));
|
|
713 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aDirection 0x%08x", aDirection));
|
|
714 |
return TInterface::RequestNotification(aClientId, aResourceId, aN, aThreshold, aDirection);
|
|
715 |
}
|
|
716 |
|
|
717 |
/**
|
|
718 |
@publishedPartner
|
|
719 |
@prototype 9.5
|
|
720 |
|
|
721 |
Cancel and remove from queue a previously issued request for notification on a
|
|
722 |
resource state change.
|
|
723 |
|
|
724 |
@param aClientId ID of the client which is requesting to cancel the notification
|
|
725 |
@param aResourceId ID of the resource whose pending notification of state changes
|
|
726 |
is being cancelled.
|
|
727 |
@param aN A reference to the notification object that was associated with
|
|
728 |
the notification request that is being cancelled. This will be
|
|
729 |
used to identify the notification that is being cancelled.
|
|
730 |
|
|
731 |
@return KErrCancel if the notification request was successfully cancelled.
|
|
732 |
KErrNotFound if the specified notification object is not found in the current list
|
|
733 |
of notification objects for the specified resource.
|
|
734 |
KErrAccessDenied if the client requesting the cancellation is not the same
|
|
735 |
which registered the notification or if the resource id does not
|
|
736 |
match or if the client ID could not be found in the list of
|
|
737 |
registered clients or if the client was registered to be
|
|
738 |
thread relative and this API is not called from the same thread.
|
|
739 |
|
|
740 |
@pre Interrupts must be enabled
|
|
741 |
@pre Kernel must be unlocked
|
|
742 |
@pre No fast mutex can be held
|
|
743 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
744 |
@pre Can be used in a device driver
|
|
745 |
*/
|
|
746 |
EXPORT_C TInt PowerResourceManager::CancelNotification(TUint aClientId, TUint aResourceId, DPowerResourceNotification& aN)
|
|
747 |
{
|
|
748 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::CancelNotification"));
|
|
749 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
750 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
751 |
return TInterface::CancelNotification(aClientId, aResourceId, aN);
|
|
752 |
}
|
|
753 |
|
|
754 |
/**
|
|
755 |
@publishedPartner
|
|
756 |
@prototype 9.5
|
|
757 |
|
|
758 |
Request pre-allocation of specified number of client level and request message objects.
|
|
759 |
|
|
760 |
@param aClientId ID of the client which is requesting the pre-allocation.
|
|
761 |
@param aNumCl Number of client level objects that needs to be pre-allocated
|
|
762 |
for this client.
|
|
763 |
@param aNumRm Number of request message objects that needs to be pre-allocated
|
|
764 |
for this client.
|
|
765 |
|
|
766 |
@return KErrNone if the allocation was successful
|
|
767 |
KErrAccessDenied if the client ID could not be found in the list of
|
|
768 |
registered clients or if the client was registered to be
|
|
769 |
thread relative and this API is not called from the same thread.
|
|
770 |
KErrNoMemory if there is no sufficient memory for allocation of requested
|
|
771 |
number of objects.
|
|
772 |
|
|
773 |
@pre Interrupts must be enabled
|
|
774 |
@pre Kernel must be unlocked
|
|
775 |
@pre No fast mutex can be held
|
|
776 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
777 |
@pre Can be used in a device driver
|
|
778 |
*/
|
|
779 |
EXPORT_C TInt PowerResourceManager::AllocReserve(TUint aClientId, TUint8 aNumCl, TUint8 aNumRm)
|
|
780 |
{
|
|
781 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::AllocReserve"));
|
|
782 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
783 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aNumCl 0x%02x", aNumCl));
|
|
784 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aNumRm 0x%02x", aNumRm));
|
|
785 |
return TInterface::AllocReserve(aClientId, aNumCl, aNumRm);
|
|
786 |
}
|
|
787 |
|
|
788 |
/**
|
|
789 |
@publishedPartner
|
|
790 |
@prototype 9.5
|
|
791 |
|
|
792 |
Request to deregister client level from the specified resource for the specified client.
|
|
793 |
|
|
794 |
@param aClientId ID of the client which is requesting the deregistration of client level.
|
|
795 |
@param aResourceId ID of the resource from which to remove the specified clients 'client level'.
|
|
796 |
|
|
797 |
@return KErrNone if successful
|
|
798 |
KErrAccessDenied if the client ID could not be found in the list of registered clients or
|
|
799 |
if the client was registered to be thread relative and this API is not
|
|
800 |
called from the same thread.
|
|
801 |
KErrNotFound if the resource ID could not be found in the current list of controllable
|
|
802 |
resources or if the client is not holding any level with the specified
|
|
803 |
resource (no client level found for the specified client).
|
|
804 |
|
|
805 |
@pre Interrupts must be enabled
|
|
806 |
@pre Kernel must be unlocked
|
|
807 |
@pre No fast mutex can be held
|
|
808 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
809 |
@pre Can be used in a device driver.
|
|
810 |
*/
|
|
811 |
EXPORT_C TInt PowerResourceManager::DeRegisterClientLevelFromResource(TUint aClientId, TUint aResourceId)
|
|
812 |
{
|
|
813 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::DeRegisterClientLevelFromResource"));
|
|
814 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
815 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aResourceId 0x%08x", aResourceId));
|
|
816 |
return TInterface::DeRegisterClientLevelFromResource(aClientId, aResourceId);
|
|
817 |
}
|
|
818 |
|
|
819 |
/**
|
|
820 |
@publishedPartner
|
|
821 |
@prototype 9.5
|
|
822 |
|
|
823 |
Interface to provide extended functionality.This provides support
|
|
824 |
to register and deregister dynamic resources and handling of resource dependency, registering
|
|
825 |
and deregistering resource dependency.
|
|
826 |
This is not supported in basic version
|
|
827 |
It is used for getting version (supported in both version).
|
|
828 |
|
|
829 |
@pre Interrupts must be enabled
|
|
830 |
@pre Kernel must be unlocked
|
|
831 |
@pre No fast mutex can be held
|
|
832 |
@pre Call in a thread context but not from null thread or DFC thread1
|
|
833 |
@pre Can be used in a device driver.
|
|
834 |
*/
|
|
835 |
EXPORT_C TInt PowerResourceManager::ControlIO(TUint aClientId, TUint aFunction, TAny* aParam1, TAny* aParam2,
|
|
836 |
TAny* aParam3)
|
|
837 |
{
|
|
838 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf(">PowerResourceManager::ControlIO"));
|
|
839 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aClientId 0x%08x", aClientId));
|
|
840 |
__KTRACE_OPT(KRESMANAGER, Kern::Printf("aFunction %d", aFunction));
|
|
841 |
return TInterface::ControlIO(aClientId, aFunction, aParam1, aParam2, aParam3);
|
|
842 |
}
|
|
843 |
|
|
844 |
|