diff -r 000000000000 -r bde4ae8d615e os/mm/devsoundextensions/effects/AudioEqualizer/AudioEqualizerProxy/Src/AudioEqualizerProxy.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/mm/devsoundextensions/effects/AudioEqualizer/AudioEqualizerProxy/Src/AudioEqualizerProxy.cpp	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,256 @@
+/*
+* Copyright (c) 2004 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:   Implementation of the audio equalizer proxy class
+*
+*/
+
+
+
+
+// INCLUDE FILES
+
+#ifdef _DEBUG
+#include <e32svr.h>
+#endif
+
+#include "AudioEqualizerProxy.h"
+#include "AudioEqualizerEventObserver.h"
+#include <CustomInterfaceUtility.h>
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CAudioEqualizerProxy::CAudioEqualizerProxy
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CAudioEqualizerProxy::CAudioEqualizerProxy(
+	TMMFMessageDestinationPckg aMessageHandler,
+	MCustomCommand& aCustomCommand,
+	CCustomInterfaceUtility* aCustomInterfaceUtility )
+	: 	iCustomCommand(&aCustomCommand),
+		iMessageHandler(aMessageHandler),
+		iCustomInterfaceUtility(aCustomInterfaceUtility)
+
+    {
+    }
+
+// Destructor
+CAudioEqualizerProxy::~CAudioEqualizerProxy()
+    {
+    // Remove the custom interface message handler before we destroy the proxy.
+    if(iCustomInterfaceUtility)
+        iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);
+	delete iAudioEqualizerEventObserver;
+	delete iCustomInterfaceUtility;
+	}
+
+// -----------------------------------------------------------------------------
+// CAudioEqualizerProxy::NewL
+// Static function for creating an instance of the Audio Equalizer object.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CAudioEqualizerProxy* CAudioEqualizerProxy::NewL(
+	TMMFMessageDestinationPckg aMessageHandler,
+    MCustomCommand& aCustomCommand,
+    CCustomInterfaceUtility* aCustomInterfaceUtility )
+    {
+    CAudioEqualizerProxy* self = new (ELeave) CAudioEqualizerProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CAudioEqualizerProxy::ConstructL
+// -----------------------------------------------------------------------------
+//
+void CAudioEqualizerProxy::ConstructL()
+    {
+#ifdef _DEBUG
+    RDebug::Print(_L("CAudioEqualizerProxy::ConstructL"));
+#endif
+    iAudioEqualizerEventObserver = CAudioEqualizerEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);
+    StartObserver();
+    // sends a message to fetch initial data.
+    TEfAudioEqualizerDataPckg dataPckgFrom;
+	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefInitialize, KNullDesC8, KNullDesC8, dataPckgFrom);
+	SetEffectData(dataPckgFrom);
+
+	TUint8 band = 0;
+	TPckgBuf<TUint8> bandPckg;
+	bandPckg() = 0;
+
+	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefGetNumberOfBands, KNullDesC8, KNullDesC8, bandPckg);
+	band = bandPckg();
+
+	if ( !band ) // Number of bands should be > 0.
+		{
+		User::Leave(KErrNotReady);
+		}
+
+	TEfAudioEqualizerBand bandData;
+	TEfAudioEqualizerBandDataPckg bandDataPckg;
+	TInt8 numberOfBands = band;
+	for(TInt i=1; i<=numberOfBands; i++)
+		{
+		band = i;
+		bandPckg() = band;
+		iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefInitializeBand, bandPckg, KNullDesC8, bandDataPckg);
+		bandData = bandDataPckg();
+		if(iBandsData.Append(bandData))
+			{
+			User::Leave(KErrNoMemory);
+			}
+		}
+
+	}
+
+
+// -----------------------------------------------------------------------------
+// CAudioEqualizerProxy::ApplyL
+// Apply the Audio Equalizer settings.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAudioEqualizerProxy::ApplyL()
+	{
+#ifdef _DEBUG
+    RDebug::Print(_L("CAudioEqualizerProxy::Apply"));
+#endif
+
+	if ( !iHaveUpdateRights )
+		{
+		User::Leave(KErrAccessDenied);
+		}
+
+//	TUint32 mask = 1;
+	iAudioEqualizerData.iEnabled = iEnabled;
+	iAudioEqualizerData.iEnforced = iEnforced;
+	iAudioEqualizerData.iHaveUpdateRights = iHaveUpdateRights;
+	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefApply, DoEffectData(), KNullDesC8);
+
+#ifdef _DEBUG
+    RDebug::Print(_L("CAudioEqualizerProxy::Apply - BandChange = %x"), iBandChange);
+#endif
+	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefApplyBand, DoBandDataL(1, ETrue), KNullDesC8);
+
+		iBandChange = 0; // clear flags
+	}
+
+// -----------------------------------------------------------------------------
+// CAudioEqualizerProxy::StartObserver
+// Starts the event observer. The event observer monitors asynchronous events
+// from the message handler.
+// -----------------------------------------------------------------------------
+//
+void CAudioEqualizerProxy::StartObserver()
+	{
+#ifdef _DEBUG
+    RDebug::Print(_L("CAudioEqualizerProxy::StartObserver"));
+#endif
+
+	iAudioEqualizerEventObserver->Start();
+	}
+
+// -----------------------------------------------------------------------------
+// CAudioEqualizerProxy::AudioEqualizerEvent
+// Checks which data member has changed and notify the observers.
+// -----------------------------------------------------------------------------
+//
+void CAudioEqualizerProxy::AudioEqualizerEventL(
+	const TDesC8& aBuffer )
+	{
+#ifdef _DEBUG
+    RDebug::Print(_L("CAudioEqualizerProxy::AudioEqualizerEventL"));
+#endif
+
+	TEfAudioEqualizerCombinedDataPckg dataPckgFrom;
+	dataPckgFrom.Copy(aBuffer);
+	TEfAudioEqualizerCombined newEqualizerCombinedData = dataPckgFrom();
+
+	TUint8 event = 0;
+
+	if ( newEqualizerCombinedData.iAudioEqualizerDataValid ) // Equalizer Data Changed
+		{
+		if ( newEqualizerCombinedData.iEnabled != iAudioEqualizerData.iEnabled )
+			{
+			iAudioEqualizerData.iEnabled = newEqualizerCombinedData.iEnabled;
+			iEnabled = newEqualizerCombinedData.iEnabled;
+			if ( iAudioEqualizerData.iEnabled )
+				{
+				event = MAudioEffectObserver::KEnabled;
+				}
+			else
+				{
+				event = MAudioEffectObserver::KDisabled;
+				}
+			}
+		else if ( newEqualizerCombinedData.iEnforced != iAudioEqualizerData.iEnforced )
+			{
+			iAudioEqualizerData.iEnforced = newEqualizerCombinedData.iEnforced;
+			iEnforced = newEqualizerCombinedData.iEnforced;
+			if ( iAudioEqualizerData.iEnforced )
+				{
+				event = MAudioEffectObserver::KEnforced;
+				}
+			else
+				{
+				event = MAudioEffectObserver::KNotEnforced;
+				}
+			}
+		else if ( newEqualizerCombinedData.iHaveUpdateRights != iAudioEqualizerData.iHaveUpdateRights )
+			{
+			iAudioEqualizerData.iHaveUpdateRights = newEqualizerCombinedData.iHaveUpdateRights;
+			iHaveUpdateRights = newEqualizerCombinedData.iHaveUpdateRights;
+			if ( iAudioEqualizerData.iHaveUpdateRights )
+				{
+				event = MAudioEffectObserver::KGainedUpdateRights;
+				}
+			else
+				{
+				event = MAudioEffectObserver::KLostUpdateRights;
+				}
+			}
+
+		}
+
+	else if ( newEqualizerCombinedData.iAudioEqualizerBandDataValid ) // Equalizer band data changed
+		{
+		TInt bandId = newEqualizerCombinedData.iBandId-1;
+		iBandsData[bandId].iBandLevel = newEqualizerCombinedData.iBandLevel;
+		iBandsData[bandId].iBandWidth = newEqualizerCombinedData.iBandWidth;
+		iBandsData[bandId].iCenterFrequency = newEqualizerCombinedData.iCenterFrequency;
+		iBandsData[bandId].iCrossoverFrequency = newEqualizerCombinedData.iCrossoverFrequency;
+		event = MAudioEffectObserver::KSpecificEffectBase + newEqualizerCombinedData.iBandId;
+		}
+
+
+
+	if (!event)
+		return;
+
+	for ( TInt i = 0; i < iObservers.Count(); i++ )
+		{
+		iObservers[i]->EffectChanged(this, event);
+		}
+	}
+
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+
+