--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/btsac/btrcc/src/btrccVolumeLevelControllerBase.cpp	Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,262 @@
+/*
+* Copyright (c) 2005-2009 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:   Base class implements volume control of AVRCP Controller.	
+*
+*
+*/
+
+// INCLUDE FILES
+#include <remconbeareravrcp.h> //   KRemConBearerAvrcpImplementationUid = 0x1020685f
+#include <MediaStreamPropertiesPSKeys.h>
+#include <mmkeybearerscancodes.h> // for volume pubsub
+#include <mediakeysinternalpskeys.h>
+#include <remconinterfaceselector.h> 
+#include <remconcoreapicontroller.h> 
+#include <remconaddress.h> 
+#include <sounddevice.h>
+
+#include "btrccVolumeLevelControllerBase.h"
+#include "debug.h"
+
+
+// MODULE DATA STRUCTURES
+const TInt KVolumeChangeListenerServiceId = 0x01; 
+
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::CBTRCCVolumeLevelController
+// C++ constructor.
+// -----------------------------------------------------------------------------
+//
+CBTRCCVolumeLevelControllerBase::CBTRCCVolumeLevelControllerBase(MBTRCCVolumeControllerObserver &aObserver): 
+    iObserver(aObserver), iLocalMaxVolume(0), iState(ESubscribePhoneVolume) 
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::ConstructL
+// Symbian 2nd phase constructor.
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::ConstructL()
+    {
+    TRACE_FUNC
+    LEAVE_IF_ERROR(iVolLevelProperty.Attach(KPSUidMediaStreamProperties, KMediaStreamCurrentVolume))
+    LEAVE_IF_ERROR(iVolKeyEventProperty.Attach(KPSUidMediaKeysEventNotifier, KMediaKeysAccessoryVolumeEvent))
+    iBtrccActive = CBTRCCActive::NewL(*this, KVolumeChangeListenerServiceId); 
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+CBTRCCVolumeLevelControllerBase::~CBTRCCVolumeLevelControllerBase()
+    {
+    TRACE_FUNC
+    delete iBtrccActive; 
+    iVolLevelProperty.Close();
+    iVolKeyEventProperty.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::Start
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::Start() 
+    {
+    TRACE_FUNC
+
+	iVolLevelProperty.Subscribe(iBtrccActive->iStatus);
+    iBtrccActive->GoActive(); 
+
+    (void) GetPhoneVolume(iPhoneVolume);
+    if( iPhoneVolume > -1)
+        {
+        DoStart( iPhoneVolume );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::Stop
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::Stop() 
+    {
+    TRACE_FUNC
+    iBtrccActive->Cancel();
+    DoStop(); 
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::Reset
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::Reset()
+    {
+    TRACE_FUNC 
+    iBtrccActive->Cancel();
+    DoReset(); 
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::RegisterVolumeChangeNotification
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::RegisterVolumeChangeNotification() 
+    {
+    TRACE_FUNC
+    return;
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::GetLocalMaxVolume
+// -----------------------------------------------------------------------------
+//
+TInt CBTRCCVolumeLevelControllerBase::GetLocalMaxVolume() 
+    {
+    TRACE_FUNC
+    if(iLocalMaxVolume == 0)
+        {
+        // fetch max volume from adaptation and cache it.
+        CMMFDevSound* devSound = NULL;
+        TRAPD( err, devSound  = CMMFDevSound::NewL() );
+        if(!err)
+            {
+            iLocalMaxVolume = devSound->MaxVolume();
+            TRACE_INFO((_L("Maximum volume is %d"), iLocalMaxVolume))
+            delete devSound; // This is not needed for anything else.
+            }
+        }
+    return iLocalMaxVolume; 
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::AccessoryChangedVolume
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::AccessoryChangedVolume(TInt aVolumeInPhoneScale) 
+    {
+    TRACE_FUNC
+    iRemoteVolume = aVolumeInPhoneScale;
+    TInt vol;
+    TInt err = GetPhoneVolume(vol);
+    if(!err)
+        {
+        iPhoneVolume = vol;
+        SetPhoneVolume();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::SetPhoneVolume
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::SetPhoneVolume()
+    {
+    TRACE_FUNC
+    TRACE_INFO((_L("iRemoteVolume = %d, iPhoneVolume = %d"), iRemoteVolume, iPhoneVolume))
+    if (iRemoteVolume != iPhoneVolume)
+        {
+        TInt event = (iRemoteVolume > iPhoneVolume) ? KPSVolumeUpClicked : KPSVolumeDownClicked;
+        TInt err = iVolKeyEventProperty.Set(event);
+        if (err)
+            {
+            TRACE_ERROR((_L("Set KMediaKeysVolumeKeyEvent err %d"), err));
+            }
+        iState = ESetPhoneVolume;
+        }    
+    else
+        {
+        iState = ESubscribePhoneVolume;
+        } 
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::GetPhoneVolume
+// -----------------------------------------------------------------------------
+//
+TInt CBTRCCVolumeLevelControllerBase::GetPhoneVolume(TInt &aVol)
+    {
+    aVol = -1;
+    TInt err = iVolLevelProperty.Get(aVol);
+    TRACE_INFO((_L("Get volume P&S ret %d vol %d"), err, aVol))
+    return err;
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::GetCurrentLocalVolume
+// -----------------------------------------------------------------------------
+//
+TInt CBTRCCVolumeLevelControllerBase::GetCurrentLocalVolume()
+    {
+    return iPhoneVolume;
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::RequestCompletedL
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::RequestCompletedL(CBTRCCActive& aActive, TInt aErr)
+    {
+    TRACE_FUNC
+    if(aActive.ServiceId() == KVolumeChangeListenerServiceId)
+        {
+        TInt err = GetPhoneVolume(iPhoneVolume);
+                
+        if(!err && !aErr && iPhoneVolume > -1)
+            {
+            switch(iState)
+                {
+                case ESubscribePhoneVolume:
+                    // Tell the specialization of the new volume level. 
+                    AdjustRemoteVolume(iPhoneVolume); 
+                    break;
+                case ESetPhoneVolume:
+                    SetPhoneVolume();
+                    break;
+                }
+            }
+        
+        iVolLevelProperty.Subscribe(iBtrccActive->iStatus);
+        iBtrccActive->GoActive();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CBTRCCVolumeLevelControllerBase::CancelRequest
+// -----------------------------------------------------------------------------
+//
+void CBTRCCVolumeLevelControllerBase::CancelRequest(TInt aServiceId) 
+    {
+    TRACE_FUNC
+    switch (aServiceId)
+        {
+        case KVolumeChangeListenerServiceId:
+            {
+            iVolLevelProperty.Cancel();
+            break;
+            }
+        default:
+            break;
+        } 
+    }
+
+void CBTRCCVolumeLevelControllerBase::VolumeControlError(TInt aError) 
+    {
+    iObserver.VolumeControlError(aError); 
+    }
+
+
+//  End of File