MCL/sf/mw/btservices: comparison bluetoothengine/btsac/btrcc/inc/btrccLinker.h

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+/*
+* Copyright (c) 2005-2006 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:  State Machine of BTRCC
+*
+*/
+#ifndef BTRCCLINKER_H
+#define BTRCCLINKER_H
+//  INCLUDES
+#include <e32base.h>
+#include <bttypes.h> // BT protocol wide types
+#include <e32property.h> // pub-sub definitions
+#include <remconbatterytarget.h>
+#include <remconbatterytargetobserver.h>
+#include <absolutevolumeapitargetobserver.h>
+#include <remconinterfaceselector.h>
+#include "btrccVolumeLevelControllerBase.h"
+// DATA TYPES
+enum TBTRCCStateIndex
+{
+EStateIndexIdle = 0,
+EStateIndexConnecting,
+EStateIndexConnected,
+EStateIndexDisconnect
+};
+// FORWARD DECLARATIONS
+class MBTAccObserver;
+class CRemConInterfaceSelector;
+class CRemConCoreApiController;
+class CBTRCCVolumeLevelController;
+class CRemConCoreApiTarget;
+class CPlayerStarter;
+class CBTRCCBrowsingAdapter;
+// CLASS DECLARATION
+/**
+*  The main controller for BT Remote Control Profile. Notifies BT Accessory Server
+* about changes in remote contorl profile connections. Perform requests from BT Accessory
+* Server to disconnect the accessory.
+*/
+NONSHARABLE_CLASS(CBTRCCLinker) : public CActive, public MRemConBatteryTargetObserver, public MBTRCCVolumeControllerObserver
+	{
+private:
+/**
+* The base class of state
+*/
+class TState
+{
+public:
+/**
+* Entry of this state
+* @param aStatus the client status, will be completed when this state should exit.
+*/
+virtual void Enter() = 0;
+/**
+* Called by parent's DoCancel
+* Cancels the outstanding operations in this state.
+*/
+virtual void DoCancel();
+virtual void Connect(const TBTDevAddr& aAddr, TRequestStatus& aStatus);
+virtual void CancelConnect(const TBTDevAddr& aAddr);
+/**
+* Makes a request to disconnect the connection.
+* @param aBdAddress	BT device address of remote side
+*/
+virtual void Disconnect(TRequestStatus& aStatus, const TBTDevAddr& aAddr);
+/**
+* This will be called whenever an async operation to RemCon FW completes.
+*/
+virtual void RemConRequestCompleted(TInt aErr);
+virtual void UpdateRemoteVolumeControling(TBool aActivated);
+protected:
+/**
+* Default constructor
+*/
+TState(CBTRCCLinker& aParent);
+protected:
+CBTRCCLinker& iParent;
+};
+friend class TState;
+class TStateIdle : public TState
+{
+public:
+TStateIdle(CBTRCCLinker& aParent);
+void Enter();
+void DoCancel();
+void Connect(const TBTDevAddr& aAddr, TRequestStatus& aStatus);
+void RemConRequestCompleted(TInt aErr);
+};
+friend class TStateIdle;
+class TStateConnecting : public TState
+{
+public:
+TStateConnecting(CBTRCCLinker& aParent);
+void Enter();
+void DoCancel();
+void CancelConnect(const TBTDevAddr& aAddr);
+void RemConRequestCompleted(TInt aErr);
+private:
+TBool iConnectCanceled;
+};
+friend class TStateConnecting;
+class TStateConnected : public TState
+{
+public:
+TStateConnected(CBTRCCLinker& aParent);
+void Enter();
+void DoCancel();
+void Connect(const TBTDevAddr& aAddr, TRequestStatus& aStatus);
+void Disconnect(TRequestStatus& aStatus, const TBTDevAddr& aAddr);
+void RemConRequestCompleted(TInt aErr);
+void UpdateRemoteVolumeControling(TBool aActivated);
+};
+friend class TStateConnected;
+class TStateDisconnect : public TState
+{
+public:
+TStateDisconnect(CBTRCCLinker& aParent);
+void Enter();
+void DoCancel();
+void RemConRequestCompleted(TInt aErr);
+};
+friend class TStateDisconnect;
+public:  // Constructors and destructor
+/**
+* Two-phased constructor.
+* After construction the instance is ready to serve requests.
+* Also starts listening to incoming connections from BT audio
+* accessories.
+*/
+static CBTRCCLinker* NewL(MBTAccObserver& aAccObserver);
+/**
+* Destructor.
+* Removes service and security registrations and stops listening to
+* incoming connections.
+*/
+virtual ~CBTRCCLinker();
+		void MrcbstoBatteryStatus(TControllerBatteryStatus& aBatteryStatus);
+public: // New functions
+void Connect(const TBTDevAddr& aAddr, TRequestStatus& aStatus);
+void CancelConnect(const TBTDevAddr& aAddr);
+/**
+* DiSconnects from the currently connected BT audio accessory.
+* @return                   None.
+*/
+void Disconnect(TRequestStatus& aStatus, const TBTDevAddr& aAddr);
+MBTAccObserver& AccObserver();
+void ActivateRemoteVolumeControl();
+void DeActivateRemoteVolumeControl();
+public:  // From MBTRCCVolumeControllerObserver
+void VolumeControlError(TInt aError);
+private:  // From CActive
+/**
+* Gets called when the asynchronous control connection open operation
+* completes. Informs the control connection observer about the
+* connection.
+* @param                            None.
+* @return                           None.
+*/
+void RunL();
+		/**
+* Gets called if RunL leaves
+* @param                            None.
+* @return                           None.
+*/
+	    TInt RunError(TInt aError);
+/**
+* Cancels the ongoing control connection open operation and informs
+* the control connection observer about that.
+* @param                            None.
+* @return                           None.
+*/
+void DoCancel();
+private:
+/**
+* C++ default constructor.
+*/
+CBTRCCLinker(MBTAccObserver& aAccObserver);
+/**
+* Symbian 2nd phase constructor.
+*/
+void ConstructL();
+/**
+* Connect the accessory.
+*/
+void DoConnect();
+void DoSubscribeConnetionStatus();
+void DoCancelSubscribe();
+/**
+* DiSconnects from the currently connected BT audio accessory.
+* @return                   None.
+*/
+void DoDisconnect();
+void ChangeState(TBTRCCStateIndex aNextState);
+/**
+* Re-orient AVRCP bearer plugin to the remote for the current connect /disconnect request
+*/
+TInt DoRemConOrientation();
+/**
+* aConnectedAddr will hold the remote BD address if there is a connection.
+* otherwise it is TBTDevAddr()
+*/
+void DoGetRemConConnectionStatus(RArray<TBTDevAddr>& aConnects);
+void StartRemoteVolumeControl();
+void StopRemoteVolumeControl();
+void ResetVolmeControlSetting();
+private:    // Data
+		CRemConInterfaceSelector *iInterfaceSelector;
+		// For receiving the accessory battery status
+CRemConBatteryApiTarget *iRemConBatteryTgt;
+	    CRemConCoreApiTarget* iCoreTarget; // not own
+	    CPlayerStarter* iPlayerStarter; // owned
+// For handling the browsing commands.
+	    CBTRCCBrowsingAdapter *iBrowsingAdapter;
+	    // This is only needed for disconnecting a AVRCP connection
+// when AVRCP Remote Volume Control is not supported.
+CRemConInterfaceSelector *iInterfaceSelectorForDisconnectingTargetSession;
+TBTDevAddr iRemoteAddr;
+		MBTAccObserver& iAccObserver;
+RPointerArray<TState> iStateArray;  // Array of all states in BTRCC
+TBTRCCStateIndex iCurrentStateIndex;  // Index of current state
+TRequestStatus* iClientRequest;
+TBool iRemConOriented;
+TBool iRvcActivated;
+CBTRCCVolumeLevelControllerBase* iVolController;
+CBTRCCVolumeLevelControllerBase* iAbsoluteVolController;
+CBTRCCVolumeLevelControllerBase* iLegacyVolController;
+TInt iRegisterVolumeChangeNotificationCounter;//Counter for re-register for remote volume control notification
+};
+#endif      // BTRCCLINKER_H
+// End of File

changeset 0	f63038272f30
child 9	a42ed326b458