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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 "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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//
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#include <kernel/kernel.h>
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#include "eventdd.h"
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/**
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Logical Device (factory class) for 'EventDD'
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*/
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class DEventFactory : public DLogicalDevice
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{
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public:
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DEventFactory();
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//Pure virtual funcitons from DLogicalDevice
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TInt Install();
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void GetCaps(TDes8& aDes) const;
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TInt Create(DLogicalChannelBase*& aChannel);
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};
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class DEventDD : public DLogicalChannelBase
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{
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public:
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//Pure virtual function from DLogicalChannelBase
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TInt Request(TInt aReqNo,TAny* a1,TAny* a2);
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private:
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TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
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TInt SendEvent(TRawEvent* aEvent);
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};
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/* DLL Factory Function */
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DECLARE_STANDARD_LDD()
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{
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return new DEventFactory;
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}
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/* DEventFactory */
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DEventFactory::DEventFactory() :DLogicalDevice()
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{
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iVersion=REventDD::VersionRequired(); //Set version number for this device
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}
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TInt DEventFactory::Install()
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{
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return SetName(&REventDD::DriverName());
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}
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void DEventFactory::GetCaps(TDes8& aDes) const
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{
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Kern::InfoCopy(aDes,KNullDesC8);
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}
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TInt DEventFactory::Create(DLogicalChannelBase*& aChannel)
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{
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aChannel=new DEventDD;
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return aChannel?KErrNone:KErrNoMemory;
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}
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/* DEventDD */ // Logical Channel
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TInt DEventDD::Request(TInt aReqNo,TAny* a1,TAny* a2)
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{
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// Decode the message type and dispatch it to the relevent handler function...
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// only using synchronous control messages
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if (static_cast<TUint>(aReqNo)<static_cast<TUint>(KMaxTInt))
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return DoControl(aReqNo,a1,a2);
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return KErrNotSupported;
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}
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/**
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Process synchronous 'control' requests
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*/
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TInt DEventDD::DoControl(TInt aFunction,TAny* a1,TAny* /*a2*/)
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{
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TInt ret=KErrNotSupported;
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switch (aFunction)
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{
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case REventDD::ESendEvent:
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ret=SendEvent(static_cast<TRawEvent*>(a1));
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break;
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default:;
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}
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return ret;
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}
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TInt DEventDD::SendEvent(TRawEvent* aEvent)
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{
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TRawEvent event;
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kumemget(&event,aEvent,sizeof(TRawEvent)); //fetch event from user memory
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NKern::ThreadEnterCS();
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TInt err=Kern::AddEvent(event);
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NKern::ThreadLeaveCS();
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return err;
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}
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