--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundpluginsupport/src/CustomInterfaces/CMMFDevSoundCIFileBlockLength.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,294 @@
+// Copyright (c) 2006-2009 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 "cmmfdevsoundcifileblocklengthimpluid.hrh"
+
+#include <ecom/implementationproxy.h>
+#include <ecom/implementationproxy.h>
+#include <ecom/ecom.h>
+#include <s32mem.h>
+
+#include "cmmfdevsoundcifileblocklength.h"
+
+// __________________________________________________________________________
+// Implementation
+
+// MUX //
+
+TInt CMMFDevSoundCIFileBlockLengthMux::OpenInterface(TUid /*aInterfaceId*/)
+	{
+	// attempt to open the interface link with the
+	// remote slave device
+	iRemoteHandle = -1;
+	TUid slaveId = {KMmfUidCIFileBlockLengthDeMux};
+		
+	TInt handle = iUtility->OpenSlave(slaveId, KNullDesC8);
+	if (handle >= 0)
+		{
+		iRemoteHandle = handle;
+		}
+		
+	return iRemoteHandle;
+	}
+
+void CMMFDevSoundCIFileBlockLengthMux::Release()
+	{
+	// close the slave device if it exists
+	if (iRemoteHandle != -1)
+		{
+		// we assume the slave is closed correctly
+		iUtility->CloseSlave(iRemoteHandle);
+		}
+	
+	TUid key = iKey;
+	delete this;
+	
+	// tell ECom to destroy us
+	REComSession::DestroyedImplementation(key);
+	}
+	
+void CMMFDevSoundCIFileBlockLengthMux::PassDestructorKey(TUid aDestructorKey)
+	{
+	// store the destructor key
+	iKey = aDestructorKey;
+	}
+
+void CMMFDevSoundCIFileBlockLengthMux::CompleteConstructL(MMMFDevSoundCustomInterfaceMuxUtility* aCustomUtility)
+	{
+	// store a pointer to the utility
+	iUtility = aCustomUtility;
+	}
+	
+MMMFDevSoundCustomInterfaceMuxPlugin* CMMFDevSoundCIFileBlockLengthMux::NewL()
+	{
+	CMMFDevSoundCIFileBlockLengthMux* self = new (ELeave) CMMFDevSoundCIFileBlockLengthMux;
+	return self;
+	}
+	
+TAny* CMMFDevSoundCIFileBlockLengthMux::CustomInterface(TUid /*aInterfaceId*/)
+	{
+	MMMFDevSoundCustomInterfaceFileBlockLength* interface = this;
+	return interface;
+	}
+	
+CMMFDevSoundCIFileBlockLengthMux::CMMFDevSoundCIFileBlockLengthMux() :
+	iRemoteHandle(-1)
+	{	
+	}
+
+CMMFDevSoundCIFileBlockLengthMux::~CMMFDevSoundCIFileBlockLengthMux()
+	{	
+	}
+
+// from MMMFDevSoundCustomInterfaceFileBlockLength
+
+void CMMFDevSoundCIFileBlockLengthMux::SetFileBlockLength(TUint aBlockAlign)
+	{
+	if (iRemoteHandle == -1)
+		{
+		return;
+		}
+	
+	// send the BlockAlign in the sync command
+	TPckgBuf<TUint> blockAlignBuffer(aBlockAlign);
+	
+	iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBlockLengthSetFileBlockLength, blockAlignBuffer);
+	}
+
+// DEMUX //	
+	
+
+TInt CMMFDevSoundCIFileBlockLengthDeMux::OpenInterface(TUid /*aInterfaceId*/)
+	{
+	return KErrNone;
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::Release()
+	{
+	TUid key = iKey;
+	
+	delete this;
+	
+	// tell ECom to destroy us
+	REComSession::DestroyedImplementation(key);
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::PassDestructorKey(TUid aDestructorKey)
+	{
+	// store the destructor key
+	iKey = aDestructorKey;
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::SetInterfaceTarget(MMMFDevSoundCustomInterfaceTarget* aTarget)
+	{
+	iTarget = aTarget;
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::CompleteConstructL(MMMFDevSoundCustomInterfaceDeMuxUtility* aCustomUtility)
+	{
+	// store a pointer to the utility
+	iUtility = aCustomUtility;
+	}
+
+void CMMFDevSoundCIFileBlockLengthDeMux::RefreshL()
+	{
+	// refetch the fileblocklength custom interface if we already have a target
+	if (iTarget)
+		{
+		MMMFDevSoundCustomInterfaceFileBlockLength* ptr = NULL;
+		ptr = static_cast<MMMFDevSoundCustomInterfaceFileBlockLength*>(iTarget->CustomInterface(KUidCustomInterfaceDevSoundFileBlockLength));
+	
+		if (!ptr)
+			{
+			iFileBlockLengthInterface = NULL;
+			User::Leave(KErrNotSupported);
+			}
+		else
+			{
+			iFileBlockLengthInterface = ptr;
+			}	
+		}
+	}
+
+
+MMMFDevSoundCustomInterfaceDeMuxPlugin* CMMFDevSoundCIFileBlockLengthDeMux::NewL()
+	{
+	CMMFDevSoundCIFileBlockLengthDeMux* self = new (ELeave) CMMFDevSoundCIFileBlockLengthDeMux;
+	return self;
+	}
+	
+CMMFDevSoundCIFileBlockLengthDeMux::CMMFDevSoundCIFileBlockLengthDeMux()
+	{
+	}
+
+CMMFDevSoundCIFileBlockLengthDeMux::~CMMFDevSoundCIFileBlockLengthDeMux()
+	{
+	}
+
+
+TInt CMMFDevSoundCIFileBlockLengthDeMux::DoOpenSlaveL(TUid /*aInterface*/, const TDesC8& /*aPackageBuf*/)
+	{
+	// fetch the fileblocklength custom interface
+	MMMFDevSoundCustomInterfaceFileBlockLength* ptr = NULL;
+	ptr = static_cast <MMMFDevSoundCustomInterfaceFileBlockLength*> (iTarget->CustomInterface(KUidCustomInterfaceDevSoundFileBlockLength));
+	
+	if (!ptr)
+		{
+		iFileBlockLengthInterface = NULL;
+		User::Leave(KErrNotSupported);
+		}
+	else
+		{
+		iFileBlockLengthInterface = ptr;
+		}
+	return KErrNone;
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::DoCloseSlaveL(TInt /*aHandle*/)
+	{
+	// nothing to do
+	}
+
+// original RMessage is supplied so that remote demux plugin can extract necessary details
+// using DeMux utility
+TInt CMMFDevSoundCIFileBlockLengthDeMux::DoSendSlaveSyncCommandL(const RMmfIpcMessage& aMessage)
+	{
+	TMMFDevSoundCIMessageData data;
+	
+	// decode message
+	iUtility->GetSyncMessageDataL(aMessage, data);
+	TInt retVal = -1;
+	
+	switch (data.iCommand)
+		{
+		case EMMFDevSoundCIBlockLengthSetFileBlockLength:
+			{
+			// we know that offset 2 contains a TInt
+			TPckgBuf<TUint> blockAlignBuffer;
+			iUtility->ReadFromInputDesL(aMessage, &blockAlignBuffer);
+			
+			DoSetFileBlockLengthL(blockAlignBuffer());
+			retVal = KErrNone;
+			break;
+			}
+	
+		default:
+			{
+			User::Leave(KErrNotSupported);
+			}
+		}
+		
+	return retVal;
+	}
+	
+TInt CMMFDevSoundCIFileBlockLengthDeMux::DoSendSlaveSyncCommandResultL(const RMmfIpcMessage& /*aMessage*/)
+	{
+	return KErrNotSupported;
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::DoSendSlaveAsyncCommandL(const RMmfIpcMessage& /*aMessage*/)
+	{
+	// not used in this interface
+	}
+	
+void CMMFDevSoundCIFileBlockLengthDeMux::DoSendSlaveAsyncCommandResultL(const RMmfIpcMessage& /*aMessage*/)
+	{
+	// not used in this interface
+	}
+
+void CMMFDevSoundCIFileBlockLengthDeMux::DoSetFileBlockLengthL(TUint aBlockAlign)
+	{
+	if (!iFileBlockLengthInterface)
+		{
+		User::Leave(KErrNotReady);
+		}
+			
+	// set the block length		
+	iFileBlockLengthInterface->SetFileBlockLength(aBlockAlign);
+	}
+
+
+
+//
+// ImplementationTable
+//
+
+const TImplementationProxy ImplementationTable[] = 
+	{
+	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCIFileBlockLengthMux,	CMMFDevSoundCIFileBlockLengthMux::NewL),
+	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCIFileBlockLengthDeMux, CMMFDevSoundCIFileBlockLengthDeMux::NewL),
+	};
+
+
+//
+// ImplementationGroupProxy
+//
+//
+
+EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
+	{
+	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
+
+	return ImplementationTable;
+	}
+
+#ifndef EKA2
+/** DLL Entry point */
+GLDEF_C TInt E32Dll(TDllReason /*aReason*/)
+	{
+	return(KErrNone);
+	}
+#endif
+