usbengines/usbwatcher/inc/cusbwatcher.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 19 Aug 2010 10:54:11 +0300
branchRCL_3
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permissions -rw-r--r--
Revision: 201031 Kit: 201033
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/*
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* Copyright (c) 2002-2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Header file for class CUsbWatcher
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*
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*/
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#ifndef CUSBWATCHER_H
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#define CUSBWATCHER_H
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#include <bldvariant.hrh>
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#include <e32base.h>
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#include <usbman.h>
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#include <e32property.h>
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#include <PSVariables.h>
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#include <centralrepository.h>
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#include <usbuinotif.h>
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#include <usbwatcher.h>
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#include "debug.h"
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#include "musbwatchernotify.h"
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#include "cusbwatchersession.h"
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#include "tusbindicatorhandler.h"
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class CUsbActiveState;
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class CUsbActivePersonalityHandler;
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class CUsbDeviceLock;
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class CUsbDevConStarter;
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class CUsbGlobalSystemStateObserver;
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class CUsbOtgWatcher; //OTG
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/**
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*  Struct for supported personalities.
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*
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*  This struct is used to store supported personalities.
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*
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*  @since Series 60 3.2
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*/
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struct TUsbSupportedPersonalityInf
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    {
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    /**
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     * implementation Uid of the personality
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     */
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    TUid  iPersonalityUid;
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    /**
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     * personality id
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     */
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    TInt  iPersonalityId;
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    /**
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     * if set then serial number is used by the personality
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     */
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    TBool iUseSerialNumber;
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    };
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/**
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*  UsbWatcher core class.
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*
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*  This class starts, stops and changes personalities depending on the cable
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*  state or client changing the personality. There is always only one instance
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*  of this class.
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*
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*  @since Series 60 2.?
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*/
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NONSHARABLE_CLASS( CUsbWatcher ): public CActive
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    {
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public:
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    static CUsbWatcher* NewL();
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    virtual ~CUsbWatcher();
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    /**
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     * Used to register observer. Each created session will register observer.
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     *
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     * @since S60 3.2
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     * @param aObserver Pointer to observer class to be added.
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     */
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    void RegisterObserverL( MUsbWatcherNotify* aObserver );
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    /**
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     * Used to deregister observer. When session is terminated, 
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     * it must deregister the observer.
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     *
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     * @since S60 3.2
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     * @param aObserver Pointer to observer class to be removed.
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     */
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    void DeRegisterObserver( MUsbWatcherNotify* aObserver );
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    /**
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     * This method is called when operation is finished.
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     *
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     * @since S60 3.2
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     * @param aStatus Status of the ended operation.
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     */
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	void Notify( TInt aStatus );
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    /**
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     * This method returns personalities supported by the system.
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     *
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     * @since S60 3.2
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     * @return Refernce to the supported personalities array.
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     */
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    inline const RArray<TUsbSupportedPersonalityInf>& Personalities() const;
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    /**
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     * This method updates central repository key and if USB is connected
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     * it will also change the personality to new one.
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     * 
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     * Note that if KErrDiskFull is returned while the cable is connected,
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     * the personality was loaded, but it was not stored to Central Repository.
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     *
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     * @since S60 3.2
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     * @param aPersonalityId Personality id
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     * @param aNonBlocking If true, no personality switch  queries are shown
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     * @return KErrNone if success, otherwise system-wide error code.
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     */
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    void SetPersonality( TInt aPersonalityId, TBool aNonBlocking );
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    /**
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     * Cancel outstanding SetPersonality() request. Everything is returned
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     * to the state before request was done.
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     *
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     * @since S60 3.2
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     */    
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    void CancelSetPersonality();
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    /**
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     * Set previous personality.
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     *
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     * @since S60 3.2
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     */
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    void SetPreviousPersonality();
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    /**
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     * Cancel outstanding SetPreviousPersonality() request. After this request
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     * everything is returned to the state like it was before the request.
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     *
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     * @since S60 3.2
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     */
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    void CancelSetPreviousPersonality();
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    /**
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     * Set previous personality when USB cable is disconnected. Note that
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     * if cable is already disconnected when this request is issued, service
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     * does nothing.
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     *
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     * @since S60 3.2
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     */
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   164
    void SetPreviousPersonalityOnDisconnect();
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    /**
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     * Write personality id to the central repository
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     *
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     * @since Series 60 3.2
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     * @param aPersonalityId Current personality id setting
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     * @return KErrNone in case of success
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     */
5
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   173
    TInt WritePersonalityId( TInt aPersonalityId );
0
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    /**
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     * This method is called by the CUsbActiveState class when there is
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     * a change in USB state.
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     *
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     * @since Series 60 2.?
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     * @param aStateOld old device state
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     * @param aStateNew new device state
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     */
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   183
    void StateChangeNotify( TUsbDeviceState aStateOld, 
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            TUsbDeviceState aStateNew );
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    /**
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     * This callback function is called when device is locked.
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     * 
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     * @since Series 60 2.?
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     * @return error
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     */
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    void Lock();
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   195
    /**
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     * This callback function is called when device is unlocked.
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     * 
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     * @since Series 60 2.?
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     * @return error
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     */
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    void Unlock();
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   203
    /**
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     * Stop loaded personality
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     * 
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     * @since Series 60 3.2
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     */
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    void StopPersonality();
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   210
    /**
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     * Start personality
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     * 
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   213
     * @since Series 60 3.2    
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     */
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    void StartPersonality();
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   216
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   217
     /**
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   218
      * Check if self is A-device (A-end connected).
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      * @return ETrue if self is in A-device state.
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   220
      */
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      TBool IsDeviceA();
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public: // from base class CActive
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    /**
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   226
     * From CActive.
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   227
     * Implements state machine for this class.
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     *
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     * @since Series 60 3.0
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     */
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    void RunL();
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    /**
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     * From CActive.
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     * Never called in this implementation.
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     *
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     * @since Series 60 3.0
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     * @param aError The error returned
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     * @return error
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     */
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    TInt RunError( TInt /*aError*/ );
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    /**
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     * From CActive
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     * Cancels outstanding request.
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     *
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     * @since Series 60 3.0
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     */
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    void DoCancel();
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private:
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    /**
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     * C++ default constructor.
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     */
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    CUsbWatcher();
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    /**
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     * By default Symbian 2nd phase constructor is private.
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     */
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    void ConstructL();
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    /**
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     * Get personality plugins.
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     *
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     * @since Series 60 3.2
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     */
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    void GetPersonalityPluginsL();
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    /**
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     * Switch personality according to USB state.
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     * @param aConfirmUnload If true, no personality switch blocking queries are shown.
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     * @since Series 60 3.2
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     */
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    void SwitchPersonality( TBool aNonBlocking = EFalse );
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    /**
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     * Starts personality/USB.
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     *
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     * @since Series 60 2.?
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     */
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    void Start();
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    /**
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     * Stops personality/USB.
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     *
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     * @since Series 60 2.?
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     */    
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    void Stop();
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    /**
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     * Stops and starts personality.
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     * @param aConfirmUnload If true, no personality switch blocking queries are shown.
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     * @since Series 60 3.0
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     */    
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    void StopStart( TBool aNonBlocking );
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	/**
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     * Get personality id. Used in charging mode.
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     *
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     * @since Series 60 3.2
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     * @return error
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     */
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    TInt GetChargingPersonalityId( TInt& aPersonalityId ); 
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private: // Data
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    /** 
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     * states for USB starting and stopping 
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     */
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    enum TUsbState
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        {
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        EUsbIdle,
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        EUsbStarting,
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        EUsbStarted,
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        EUsbStopping,
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        EUsbConfirmStop
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        };
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    /**
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     * Personalities supported by this system
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     */
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    RArray<TUsbSupportedPersonalityInf> iSupportedPersonalities;
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    /**
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     * Object to follow device state
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     */
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    CUsbActiveState* iActiveState;
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    /**
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     * Handle to Usb Manager
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     */
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    RUsb iUsbMan;
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   333
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   334
    /**
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     * Object to start or stop current personality
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     */
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    CUsbActivePersonalityHandler* iPersonalityHandler;
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   338
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   339
    /**
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     * Current personality id
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     */
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   342
    TInt iPersonalityId;
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    /**
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     * Previous personality id
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     */
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   347
    TInt iPrevPersonalityId;
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   349
    /**
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   350
     * Earlier previous personality id
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   351
     */
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   352
    TInt iOldPrevPersonalityId;
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   353
    
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   354
    /**
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diff changeset
   355
     * State for USB starting/stoping
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
    TUsbState iState;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
     * Flag to detect when stop+start scenario ongoing
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
    TBool iStopStartScenario;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
     * Registered by CUsbWatcherSession when connection established
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
	RPointerArray<MUsbWatcherNotify> iObservers;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
     * Access to central repository
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
    CRepository* iPersonalityRepository;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
     * Flag to detect when personality change is ongoing
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
    TBool iPersonalityChangeOngoing;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
     * Flag to detect when set personality request is ongoing
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
    TBool iSetPersonalityOngoing;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
     * Flag to detect when set previous personality request is ongoing
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
    TBool iSetPreviousPersonalityOngoing;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
     * Flag to detect when client has requested personality change on disconnect
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
    TBool iSetPreviousPersonalityOnDisconnect;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
     * Flag to detect when personality is changed from the ask on connection
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
    TBool iChangePersonalityOngoing;    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
     * Device lock feature
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    CUsbDeviceLock* iUsbDeviceLock;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
     * Usbdevcon process starter
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
     * Own.
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    CUsbDevConStarter* iUsbDevConStarter;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
     * Global system state listener
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
     * Start/stop personality depending on global state changes.
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
     * Own.
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
    CUsbGlobalSystemStateObserver* iGlobalStateObserver;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
     * Personality loading ongoing
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
    TBool iStarted;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
    /**
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
     * OTG Watcher
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
     */
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
    CUsbOtgWatcher* iOtgWatcher; //OTG
4
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   426
    
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   427
    /*
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   428
     * USB indicator handler to handle device side indicator
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   429
     */
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   430
    TUsbIndicatorHandler iUsbIndicatorHandler;
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   431
    
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   432
    /*
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   433
     * Starting mode is normal?
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   434
     */
7e15987c4500 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   435
    TBool iNormalStart;
0
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
    };
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
    
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
#include "cusbwatcher.inl"
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
#endif   // CUSBWATCHER_H
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
// End of File