wlan_bearer/wlanldd/wlan_common/umac_common/inc/UmacDot11Synchronize.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 02:03:13 +0200
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/*
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* Copyright (c) 2002-2006 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 the License "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:   Declaration of the UmacDot11Synchronize class
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*
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*/
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/*
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* %version: 18 %
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*/
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#ifndef WLANDOT11SYNCHRONIZE_H
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#define WLANDOT11SYNCHRONIZE_H
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#include "UmacDot11Roam.h"
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/**
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*  Joins to a new BSS network so that reassociation to that network 
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*  can be performed.
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*
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*  @lib wlanumac.lib
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*  @since S60 v3.1
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*/
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class WlanDot11Synchronize : public WlanDot11Roam
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    {
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public:
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    /**
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    * C++ default constructor.
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    */
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    WlanDot11Synchronize();
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    /**
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    * Destructor.
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    */
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    virtual ~WlanDot11Synchronize();
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protected:
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    // Types for the FSMs
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    //
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    // events for the FSM
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    enum TEvent
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        {
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        // state entry action to be executed
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        ESTATEENTRY,
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        // underlying sw layer tx delivery complete event 
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        ETXCOMPLETE,        
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        // abort FSM execution 
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        EABORT,
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        // defined as an upper bound
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        EEVENTMAX           
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        };
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    // states of the FSM
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    enum TState
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        {
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        // start state of the state machine
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        EINIT,            
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        ESETDOT11SLOTTIME,          // configure slottime mib if 
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                                    // supported by the WLAN vendor solution
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        ESETCTSTOSELF,              // configure ctstoself mib 
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        ECONFTXQUEUE,               // configure just the legacy tx queue
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        ECONFTXQUEUEPARAMS,         // configure tx queue parameters
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        ESETTXRATEPOLICY,           // set Tx rate policy
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        ESETHTCAPABILITIES,         // configure HT capabilities mib 
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        ESETHTBSSOPERATION,         // configure HT BSS operation mib
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        ERESETHTCAPABILITIES,       // reset HT capabilities mib
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        EISSUEJOIN,                 // issue join command
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        ESETHTBLOCKACKCONF,         // configure HT Block Ack configure mib
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        ERESETHTBLOCKACKCONF,       // reset HT Block Ack configure mib
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        ECONTINUEDOT11TRAVERSE,     // continue dot11 fsm traversal
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        ESTATEMAX                   // defined as an upper bound                       
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        }; 
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    void Fsm( 
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        WlanContextImpl& aCtxImpl, 
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        TEvent aEvent );
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    void OnStateEntryEvent( 
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        WlanContextImpl& aCtxImpl );
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    void OnTxCompleteEvent( 
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        WlanContextImpl& aCtxImpl );
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    void OnAbortEvent( WlanContextImpl& aCtxImpl );
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    void ContinueDot11StateTraversal( 
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        WlanContextImpl& aCtxImpl );
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    void ChangeInternalState( 
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        WlanContextImpl& aCtxImpl, 
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        TState aNewState );
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    TBool InitActions( 
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        WlanContextImpl& aCtxImpl );
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    void SetDot11SlotTime( 
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        WlanContextImpl& aCtxImpl );
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    void SetCtsToSelf( WlanContextImpl& aCtxImpl );
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    void ConfigureQueue( WlanContextImpl& aCtxImpl );
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    void ConfigureTxQueueParams( WlanContextImpl& aCtxImpl );
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    void SetTxRatePolicy( WlanContextImpl& aCtxImpl );    
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    /**
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    * Informs lower layer about the HT capabilities
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    * of the target network
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    * @param aCtxImpl global statemachine context
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    */
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    void SetHtCapabilities( WlanContextImpl& aCtxImpl );    
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    /**
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    * Informs lower layer about the dynamic HT configuration
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    * of the target network
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    * @param aCtxImpl statemachine context
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    */
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    void SetHtBssOperation( WlanContextImpl& aCtxImpl );    
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    /**
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    * Resets the HT Capabilities MIB to its default value
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    * @param aCtxImpl statemachine context
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    */
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    void ResetHtCapabilities( WlanContextImpl& aCtxImpl );
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    /**
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    * Resets the HT Block Ack Configure MIB to its default value
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    * @param aCtxImpl statemachine context
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    */
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    void ResetHtBlockAckConfiguration( WlanContextImpl& aCtxImpl );
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    void IssueJoin( 
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        WlanContextImpl& aCtxImpl );
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    /**
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    * Informs lower layer about the HT Block Ack configuration
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    * of the target network
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    * @param aCtxImpl statemachine context
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    */
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    void SetHtBlockAckConfiguration( WlanContextImpl& aCtxImpl );
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#ifndef NDEBUG 
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        virtual const TInt8* GetStateName( TUint8& aLength ) const;
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#endif // !NDEBUG 
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    void Entry( WlanContextImpl& aCtxImpl );
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    void Exit( WlanContextImpl& aCtxImpl );
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    virtual void OnWhaCommandResponse( 
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        WlanContextImpl& aCtxImpl, 
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        WHA::TCommandId aCommandId, 
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        WHA::TStatus aStatus,
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        const WHA::UCommandResponseParams& aCommandResponseParams,
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        TUint32 aAct );
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private:
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    // Prohibit copy constructor.
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    WlanDot11Synchronize( const WlanDot11Synchronize& );
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    // Prohibit assigment operator.
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    WlanDot11Synchronize& operator=( const WlanDot11Synchronize& );
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protected:    // Data
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    TState              iState;
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    // true, if the Join operation failed
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    TBool iJoinFailed;
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#ifndef NDEBUG
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    // max length of state name for tracing
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    enum { KMaxStateStringLength = 50 };
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    // max length of event name for tracing
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    enum { KMaxEventStringLength = KMaxStateStringLength };
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    // state names for tracing
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    static const TUint8 iStateName[ESTATEMAX][KMaxStateStringLength];
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    // event names for tracing
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    static const TUint8 iEventName[EEVENTMAX][KMaxEventStringLength];         
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    // name of the state 
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    static const TInt8 iName[];        
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#endif
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    };
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#endif      // WLANDOT11SYNCHRONIZE_H