diff -r 000000000000 -r 79dd3e2336a0 devsound/devsoundpluginsupport/src/CustomInterfaces/playbackstatusci.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundpluginsupport/src/CustomInterfaces/playbackstatusci.cpp	Fri Oct 08 19:40:43 2010 +0100
@@ -0,0 +1,373 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <ecom/implementationproxy.h>
+#include <ecom/implementationproxy.h>
+#include <ecom/ecom.h>
+#include "playbackstatusci.h"
+
+
+// MUX //
+/*****************************************************************************/
+
+TInt CMMFPlayBackStatusMux::OpenInterface(TUid /*aInterfaceId*/)
+	{
+	// attempt to open the interface link with the
+	// remote slave device
+	iRemoteHandle = -1;
+	TUid slaveId = {KMmfUidCustomInterfacePlayBackStatusDeMux};
+		
+	TInt handle = iUtility->OpenSlave(slaveId, KNullDesC8);
+	if (handle >= 0)
+		{
+		iRemoteHandle = handle;
+		}
+		
+	return iRemoteHandle;
+	}
+
+/*****************************************************************************/
+void CMMFPlayBackStatusMux::Release()
+	{
+	// close the slave device if it exists
+	if (iRemoteHandle > 0)
+		{
+		// we assume the slave is closed correctly
+		iUtility->CloseSlave(iRemoteHandle);
+		}
+	
+	TUid key = iDestructorKey;
+	delete this;
+	
+	// tell ECom to destroy us
+	REComSession::DestroyedImplementation(key);
+	}
+
+/*****************************************************************************/	
+void CMMFPlayBackStatusMux::PassDestructorKey(TUid aDestructorKey)
+	{
+	// store the destructor key
+	iDestructorKey = aDestructorKey;
+	}
+
+/*****************************************************************************/
+void CMMFPlayBackStatusMux::CompleteConstructL(MMMFDevSoundCustomInterfaceMuxUtility* aCustomUtility)
+	{
+	// store a pointer to the utility
+	iUtility = aCustomUtility;
+	}
+
+/*****************************************************************************/	
+MMMFDevSoundCustomInterfaceMuxPlugin* CMMFPlayBackStatusMux::NewL()
+	{
+	CMMFPlayBackStatusMux* self = new (ELeave) CMMFPlayBackStatusMux;
+	return self;
+	}
+
+/*****************************************************************************/	
+TAny* CMMFPlayBackStatusMux::CustomInterface(TUid /*aInterfaceId*/)
+	{
+	MMMFPlaybackStatus* interface = this;
+	return interface;
+	}
+	
+/*****************************************************************************/
+CMMFPlayBackStatusMux::CMMFPlayBackStatusMux() :
+	iRemoteHandle(-1)
+	{	
+	}
+
+/*****************************************************************************/
+CMMFPlayBackStatusMux::~CMMFPlayBackStatusMux()
+	{	
+	}
+
+/*****************************************************************************/
+// from MMMFPlaybackStatus
+TInt CMMFPlayBackStatusMux::MmpsGetPlaybackStatusInformation(TMMFPlaybackStatus& aStatus)
+	{
+	TInt err = KErrNone;
+	if (iRemoteHandle > 0)
+		{
+		// send the status in the sync command
+		TPckgBuf<MMMFPlaybackStatus::TMMFPlaybackStatus> status(aStatus);
+		
+		TPckgBuf<MMMFPlaybackStatus::TMMFPlaybackStatus> retStatus;
+		
+		// any return code other than zero is an error
+		err = iUtility->SendSlaveSyncCommandResult(iRemoteHandle, 
+													EMMFDevSoundCIPlayBackStatus, 
+													status,
+													retStatus);
+		// assign return values to aStatus. Do nothing if there is an error
+		if(err == KErrNone)
+			{
+			aStatus = retStatus();
+			}
+		}
+	return err;
+	}
+
+TInt CMMFPlayBackStatusMux::MmpsRequestLossOfSyncNotification()
+	{
+	TInt err = KErrNone;
+	if (iRemoteHandle > 0)
+		{
+		// any return code other than zero is an error
+		err = iUtility->SendSlaveSyncCommand(iRemoteHandle, 
+												EMMFDevSoundCIPlayBackStatusReqSyncLossNotification, 
+												KNullDesC8);
+		}
+	return err;
+	}
+	
+TInt CMMFPlayBackStatusMux::MmpsCancelLossOfSyncNotification()
+	{
+	TInt err = KErrNone;
+	if (iRemoteHandle > 0)
+		{
+		// any return code other than zero is an error
+		err = iUtility->SendSlaveSyncCommand(iRemoteHandle, 
+												EMMFDevSoundCIPlayBackStatusCancelSyncLossNotification, 
+												KNullDesC8);
+		}
+	return err;
+	}
+
+
+// DEMUX //	
+/*****************************************************************************/
+TInt CMMFPlayBackStatusDeMux::OpenInterface(TUid /*aInterfaceId*/)
+	{
+	return KErrNone;
+	}
+
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::Release()
+	{
+	TUid key = iDestructorKey;
+	
+	delete this;
+	
+	// tell ECom to destroy us
+	REComSession::DestroyedImplementation(key);
+	}
+	
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::PassDestructorKey(TUid aDestructorKey)
+	{
+	// store the destructor key
+	iDestructorKey = aDestructorKey;
+	}
+	
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::SetInterfaceTarget(MMMFDevSoundCustomInterfaceTarget* aTarget)
+	{
+	iTarget = aTarget;
+	}
+
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::CompleteConstructL(MMMFDevSoundCustomInterfaceDeMuxUtility* aCustomUtility)
+	{
+	// store a pointer to the utility
+	iUtility = aCustomUtility;
+	}
+
+/*****************************************************************************/
+void CMMFPlayBackStatusDeMux::RefreshL()
+	{
+	// refetch the play back status custom interface if we already have a target
+	if (iTarget)
+		{
+		iInterfacePlayBackStatus = static_cast<MMMFPlaybackStatus*>(iTarget->
+																	CustomInterface(KUidPlaybackStatus));
+	
+		if (!iInterfacePlayBackStatus)
+			{
+			User::Leave(KErrNotSupported);
+			}
+		}
+	}
+	
+/*****************************************************************************/
+MMMFDevSoundCustomInterfaceDeMuxPlugin* CMMFPlayBackStatusDeMux::NewL()
+	{
+	CMMFPlayBackStatusDeMux* self = new (ELeave) CMMFPlayBackStatusDeMux;
+	return self;
+	}
+
+/*****************************************************************************/	
+CMMFPlayBackStatusDeMux::CMMFPlayBackStatusDeMux()
+	{	
+	}
+
+/*****************************************************************************/
+CMMFPlayBackStatusDeMux::~CMMFPlayBackStatusDeMux()
+	{
+	}
+
+/*****************************************************************************/
+TInt CMMFPlayBackStatusDeMux::DoOpenSlaveL(TUid /*aInterface*/, const TDesC8& /*aPackageBuf*/)
+	{
+	// fetch the Playback status Hw Device custom interface
+	MMMFPlaybackStatus* ptr = NULL;
+
+	ptr = static_cast<MMMFPlaybackStatus*> (iTarget->CustomInterface(KUidPlaybackStatus)); 
+	
+	if (!ptr)
+		{
+		iInterfacePlayBackStatus = NULL;
+		User::Leave(KErrNotSupported);
+		}
+	else
+		{
+		iInterfacePlayBackStatus = ptr;
+		}
+	return KErrNone;
+	}
+	
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::DoCloseSlaveL(TInt /*aHandle*/)
+	{
+	// nothing to do
+	}
+
+/*****************************************************************************/
+// original RMessage is supplied so that remote demux plugin can extract necessary details
+// using DeMux utility
+TInt CMMFPlayBackStatusDeMux::DoSendSlaveSyncCommandL(const RMmfIpcMessage& aMessage)
+	{
+	TMMFDevSoundCIMessageData data;
+	iUtility->GetSyncMessageDataL(aMessage, data);
+	
+	TInt err = KErrNone;
+	switch(data.iCommand)
+		{
+		case EMMFDevSoundCIPlayBackStatusReqSyncLossNotification:
+			{
+			err = DoMmpsRequestLossOfSyncNotification();
+			break;
+			}
+		case EMMFDevSoundCIPlayBackStatusCancelSyncLossNotification:
+			{
+			err = DoMmpsCancelLossOfSyncNotification();
+			break;
+			}
+		default:
+			{
+			User::Leave(KErrNotSupported);
+			}
+		}
+	return err;
+	}
+	
+/*****************************************************************************/	
+TInt CMMFPlayBackStatusDeMux::DoSendSlaveSyncCommandResultL(const RMmfIpcMessage& aMessage)
+	{
+	TMMFDevSoundCIMessageData data;
+	
+	// decode message
+	iUtility->GetSyncMessageDataL(aMessage, data);
+	
+	switch (data.iCommand)
+		{
+		case EMMFDevSoundCIPlayBackStatus:
+			{
+			TPckgBuf<MMMFPlaybackStatus::TMMFPlaybackStatus> status; 
+			iUtility->ReadFromInputDesL(aMessage, &status);
+
+			DoMmpsGetPlaybackStatusInformation(status());
+			
+			TPckgBuf<MMMFPlaybackStatus::TMMFPlaybackStatus> des(status());
+			iUtility->WriteToOutputDesL(aMessage, des);
+			break;
+			}
+		default:
+			{
+			User::Leave(KErrNotSupported);
+			}
+		}
+	return KErrNone;
+	}
+	
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::DoSendSlaveAsyncCommandL(const RMmfIpcMessage& /*aMessage*/)
+	{
+	// not used in this interface
+	}
+	
+/*****************************************************************************/	
+void CMMFPlayBackStatusDeMux::DoSendSlaveAsyncCommandResultL(const RMmfIpcMessage& /*aMessage*/)
+	{
+	// not used in this interface
+	}
+
+/*****************************************************************************/
+// Play Back Status custom interface implementation
+TInt CMMFPlayBackStatusDeMux::DoMmpsGetPlaybackStatusInformation(MMMFPlaybackStatus::TMMFPlaybackStatus& aStatus)
+	{
+	TInt err = KErrNotReady;
+	if (iInterfacePlayBackStatus)
+		{
+		err = iInterfacePlayBackStatus->MmpsGetPlaybackStatusInformation(aStatus);
+		}
+	return err;	
+	}
+
+TInt CMMFPlayBackStatusDeMux::DoMmpsRequestLossOfSyncNotification()
+	{
+	TInt err = KErrNotReady;
+	if (iInterfacePlayBackStatus)
+		{
+		err = iInterfacePlayBackStatus->MmpsRequestLossOfSyncNotification();
+		}
+	return err;
+	}
+	
+TInt CMMFPlayBackStatusDeMux::DoMmpsCancelLossOfSyncNotification()
+	{
+	TInt err = KErrNotReady;
+	if (iInterfacePlayBackStatus)
+		{
+		err = iInterfacePlayBackStatus->MmpsCancelLossOfSyncNotification();
+		}
+	return err;
+	}
+
+/*****************************************************************************/
+//
+// ImplementationTable
+//
+
+const TImplementationProxy ImplementationTable[] = 
+	{
+	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfacePlayBackStatusMux,	CMMFPlayBackStatusMux::NewL),
+	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfacePlayBackStatusDeMux, CMMFPlayBackStatusDeMux::NewL),
+	};
+
+/*****************************************************************************/
+//
+// ImplementationGroupProxy
+//
+//
+
+EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
+	{
+	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
+
+	return ImplementationTable;
+	}
+
+