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/*
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* Copyright (c) 2007-2008 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: Class header for CWsfWlanScanner
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*
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*/
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#ifndef C_WSFWLANSCANNER_H
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#define C_WSFWLANSCANNER_H
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// EXTERNAL INCLUDES
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#include <e32base.h>
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#include <wlanmgmtcommon.h>
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#include <commsdattypesv1_1.h>
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#include <cmmanagerext.h>
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// INTERNAL INCLUDES
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#include "wsfwlanscannerobserver.h"
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#include "wsfwlanmonitorobserver.h"
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#include "wsfwlanscanintervalchangeobserver.h"
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#include "wsfwlaninfo.h"
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const TUint8 TX_RATE_BASIC_MASK = 0x80;
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/**
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* Defines the possible TX rate values.
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*/
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typedef enum _core_tx_rate_e
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{
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core_tx_rate_none = 0x00000000,
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core_tx_rate_1mbit = 0x00000001,
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core_tx_rate_2mbit = 0x00000002,
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core_tx_rate_5p5mbit = 0x00000004,
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core_tx_rate_6mbit = 0x00000008,
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core_tx_rate_9mbit = 0x00000010,
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core_tx_rate_11mbit = 0x00000020,
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core_tx_rate_12mbit = 0x00000040,
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core_tx_rate_18mbit = 0x00000080,
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core_tx_rate_22mbit = 0x00000100,
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core_tx_rate_24mbit = 0x00000200,
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core_tx_rate_33mbit = 0x00000400,
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core_tx_rate_36mbit = 0x00000800,
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core_tx_rate_48mbit = 0x00001000,
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core_tx_rate_54mbit = 0x00002000
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} core_tx_rate_e;
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const TUint32 CORE_TX_RATES_802P11B =
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core_tx_rate_1mbit |
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core_tx_rate_2mbit |
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core_tx_rate_5p5mbit |
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core_tx_rate_11mbit;
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const TUint32 CORE_TX_RATES_802P11G =
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core_tx_rate_6mbit |
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core_tx_rate_9mbit |
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core_tx_rate_12mbit |
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core_tx_rate_18mbit |
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core_tx_rate_22mbit |
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core_tx_rate_24mbit |
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core_tx_rate_33mbit |
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core_tx_rate_36mbit |
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core_tx_rate_48mbit |
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core_tx_rate_54mbit;
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/**
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* Define the possible TX rate value as units of 500kbit/s.
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*/
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typedef enum _core_tx_rate_value_e
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{
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core_tx_rate_value_none = 0,
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core_tx_rate_value_1mbit = 2,
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core_tx_rate_value_2mbit = 4,
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core_tx_rate_value_5p5mbit = 11,
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core_tx_rate_value_6mbit = 12,
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core_tx_rate_value_9mbit = 18,
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core_tx_rate_value_11mbit = 22,
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core_tx_rate_value_12mbit = 24,
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core_tx_rate_value_18mbit = 36,
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core_tx_rate_value_22mbit = 44,
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core_tx_rate_value_24mbit = 48,
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core_tx_rate_value_33mbit = 66,
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core_tx_rate_value_36mbit = 72,
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core_tx_rate_value_48mbit = 96,
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core_tx_rate_value_54mbit = 108,
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} _core_tx_rate_value_e;
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// FORWARD DECLARATIONS
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class CWlanMgmtClient;
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class CWlanScanInfo;
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class CWsfWlanSettingsAccessor;
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class CWsfWlanInfoArray;
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class TWsfWlanInfo;
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class MWsfWlanConnectionDetailsProvider;
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class MWsfKnownIapRecognizer;
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// CLASS DEFINITION
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/**
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* Class to schedule WLAN scanning and process the resultant data
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*
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* @since S60 5.0
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* @lib wsfserver.exe
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*/
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NONSHARABLE_CLASS( CWsfWlanScanner ): public CActive,
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public MWlanMgmtNotifications,
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public MWsfWlanMonitorObserver,
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public MWsfWlanScanIntervalChangeObserver
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{
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private: // Type definitions
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/**
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* States of the scanning process
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*/
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enum TWsfScanState
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{
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/**
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* Not scanning but scheduled
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*/
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EIdle,
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/**
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* Do broadcast scan
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*/
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EBroadcastScan,
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/**
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* Processing broadcast scan results
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*/
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EProcessBroadcastScan,
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/**
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* Processing direct scan results
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*/
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EDirectScan,
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/**
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* Scanning finished, cleanup and notification
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*/
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EFinished
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};
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public: // Constructors and destructor
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/**
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* Factory function.
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* @since S60 5.0
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* @param aDbSession Reference to the database session to use
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* @return Class instance
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*/
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static CWsfWlanScanner* NewL( CommsDat::CMDBSession& aDbSession );
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/**
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* Factory function.
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* @since S60 5.0
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* @param aDbSession Reference to the database session to use
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* @return Class instance
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*/
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static CWsfWlanScanner* NewLC( CommsDat::CMDBSession& aDbSession );
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/**
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* Destructor.
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*/
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~CWsfWlanScanner();
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private: // Constructors
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/**
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* Constructor
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* @since S60 5.0
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* @param aDbSession Reference to the database session to use
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*/
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CWsfWlanScanner( CommsDat::CMDBSession& aSession );
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/**
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* Second-phase constructor.
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* @since S60 5.0
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*/
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void ConstructL();
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public: // New methods
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/**
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* Sets the observer of this class
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* @since S60 5.0
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* @param aObserver The observer to be notified of scanning events
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*/
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void SetObserver( MWsfWlanScannerObserver& aObserver );
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/**
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* Enables scanning for wlans
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* @since S60 5.0
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*/
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void StartScanningL();
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/**
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* Stops the activation timer and cancels the mgmt client to
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* give notifications
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* @since S60 5.0
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*/
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void StopScanning();
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/**
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* Initiates a new scanning if it was already enabled but was idle.
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* @since S60 5.0
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* @return ETrue if scanning was in fact restarted
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*/
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TBool RestartScanning();
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/**
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* Aborts the scanning process if it was active. However, it does not
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* disable scanning
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* @since S60 5.0
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*/
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void AbortScanning();
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/**
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* Returns the serialized contents of scan results
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* @since S60 5.0
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* @return A serialized array of wlaninfo items
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*/
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HBufC8* ScanResults();
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/**
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* Sets ConnectionDetails provider handle to get data about
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* connected wlans
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* @since S60 5.0
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* @param aProvider The object to be asked for connection details
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*/
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void SetConnectionDetailProvider(
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MWsfWlanConnectionDetailsProvider& aProvider );
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public: // From MWlanMgmtNotifications
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/**
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* Connection status has changed.
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* @since S60 5.0
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* @param aNewState The new connection state
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*/
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void ConnectionStateChanged( TWlanConnectionMode aNewState );
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/**
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* BSSID has changed (i.e. AP handover).
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* @since S60 5.0
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* @param aNewBssid The new BSSID
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*/
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void BssidChanged( TWlanBssid& aNewBssid );
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/**
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* Connection has been lost.
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* @since S60 5.0
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*/
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void BssLost();
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/**
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* Connection has been regained.
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* @since S60 5.0
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*/
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void BssRegained();
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/**
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* New networks have been detected during scan.
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* @since S60 5.0
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*/
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void NewNetworksDetected();
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/**
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* One or more networks have been lost since the last scan.
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* @since S60 5.0
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*/
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void OldNetworksLost();
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/**
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* The used transmit power has been changed.
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* @since S60 5.0
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* @param aPower The transmit power in mW.
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*/
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void TransmitPowerChanged( TUint aPower );
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/**
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* Received signal strength level has been changed.
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* @since S60 5.0
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* @param aRssClass specifies the current class of the received signal
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* @param aRss RSS level in absolute dBm values.
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*/
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void RssChanged( TWlanRssClass aRssClass, TUint aRss );
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private: // New methods
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/**
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* Processes the results of the broadcast scan
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* @since S60 5.0
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*/
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void DoScanForNetworksL();
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/**
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* Compares two SSIDs
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* @since S60 5.0
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* @param aSsid1 First SSID
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* @param aSsid2 Second SSID
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* @return ETrue if the SSIDs are the same, EFalse otherwise
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*/
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static TBool SsidIdentity( const TWlanSsid& aSsid1,
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const TWlanSsid& aSsid2 );
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#ifdef _DEBUG
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/**
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* Dumps the scan results to the log
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* @since S60 5.0
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* @param aArray Array of wlaninfo items added during scanning
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*/
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static void DumpScanResultsL( CWsfWlanInfoArray* aArray );
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#endif
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/**
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* Check if the given SSID implies a hidden WLAN
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* @since S60 5.0
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* @param aSsidLength Length of the SSID passed
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* @param aSsid SSID as array of bytes
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* @return ETrue if the network in question is hidden, EFalse otherwise
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*/
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TBool IsHiddenSsid( TUint aSsidLength, const TUint8* aSsid );
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/**
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* Parses the scan results for the network name
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* @since S60 5.0
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* @param aWlanInfo The wlaninfo to put the results in
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* @return ETrue if the network is a hidden one
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*/
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TBool RefreshNetworkNameL( TWsfWlanInfo& aWlanInfo );
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/**
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* Parses the scan results for the wlan signal stregth
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* @since S60 5.0
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* @param aWlanInfo The wlaninfo to put the results in
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*/
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void RefreshSignalStrength( TWsfWlanInfo& aWlanInfo );
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/**
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* Parses the scan results for the network mode
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* @since S60 5.0
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* @param aWlanInfo The wlaninfo to put the results in
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*/
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void RefreshNetworkMode( TWsfWlanInfo& aWlanInfo );
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/**
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* Parses the scan results for the security mode
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* @since S60 5.0
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* @param aWlanInfo The wlaninfo to put the results in
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*/
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void RefreshSecurityMode( TWsfWlanInfo& aWlanInfo );
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/**
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* Convert the given rate value (500kbit/s per unit)
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* to a corresponding enum.
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* @since S60 5.2
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* @param aRate Rate value to be converted.
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* @return Corresponding rate enum.
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*/
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core_tx_rate_e ConvertTxRateToTxRateEnum( TUint8 aRate );
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/**
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* Parses the scan results for the technology information
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* @since S60 5.2
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* @param aWlanInfo The wlaninfo to put the results in
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*/
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void RefreshTechnology( TWsfWlanInfo& aWlanInfo );
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/**
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* Prepares for direct scanning
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* @since S60 5.0
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*/
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void PrepareDirectScan();
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/**
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* Processes the result of the last direct scan
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* @since S60 5.0
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*/
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void ProcessDirectScanResultL();
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/**
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* Checks iScanArray and replaces SSIDs of known networks
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* with their IAP names.
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* @param aWlanInfo The wlaninfo to put the results in
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* @since S60 5.0
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*/
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void ReplaceSsidsWithIapName(TWsfWlanInfo& aWlanInfo);
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/**
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* Updates IAPs priority
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* @since S60 5.0
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* @param aWlanInfo The wlaninfo to put the results in
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*/
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void UpdatePriorityL( TWsfWlanInfo& aWlanInfo );
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/**
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* Finds the security mode, network mode from WLAN table
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* with their IAP names.
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* @param aWlanInfo The wlaninfo to put the results in
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* @since S60 5.0
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*/
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void GetWlanInfoFromIapL( TWsfWlanInfo& aWlanInfo );
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/**
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* Add connected wlan info to scan results
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* @since S60 5.0
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*/
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void AddConnectedWLANInfoL();
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private: // From CActive
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/**
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* Implements cancellation of an outstanding request.
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* @since S60 5.0
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*/
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void DoCancel();
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/**
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* Handles an active object's request completion event.
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* @since S60 5.0
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*/
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void RunL();
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/**
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* Handles a leave occurring in RunL().
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* @since S60 5.0
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* @param aError Leave code
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* @return aError
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*/
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TInt RunError( TInt aError );
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public: // from MWsfWlanMonitorObserver
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450 |
|
|
451 |
/**
|
|
452 |
* Called when a wlan connection is established
|
|
453 |
* @since S60 5.0
|
|
454 |
* @param aConnectionName WLAN connection name (SSID)
|
|
455 |
*/
|
|
456 |
void ConnectionEstablishedL( const TDesC& aConnectionName );
|
|
457 |
|
|
458 |
/**
|
|
459 |
* Called when wlan connection has been lost
|
|
460 |
* @since S60 5.0
|
|
461 |
*/
|
|
462 |
void ConnectionLostL();
|
|
463 |
|
|
464 |
/**
|
|
465 |
* Called when the connection process failed for some reason
|
|
466 |
* @since S60 5.0
|
|
467 |
* @param aError System wide error code
|
|
468 |
*/
|
|
469 |
void ConnectingFailedL( TInt aError );
|
|
470 |
|
|
471 |
/**
|
|
472 |
* Called when the connection no longer needs the IAP it was using
|
|
473 |
* @since S60 5.0
|
|
474 |
*/
|
|
475 |
void ConnectedIapReleasedL();
|
|
476 |
|
|
477 |
|
|
478 |
public: // from MWsfWlanScanIntervalChangeObserver
|
|
479 |
/**
|
|
480 |
* Called when the value of the background scan interval or the
|
|
481 |
* show availability flag has been changed
|
|
482 |
* @since S60 5.0
|
|
483 |
* @param aNewScanInterval The new value for the scan interval
|
|
484 |
* @param aShowAvailability The new value for the
|
|
485 |
* Show WLAN availability flag
|
|
486 |
*/
|
|
487 |
void WlanScanIntervalChangedL( TUint aNewScanInterval,
|
|
488 |
TBool aShowAvailability );
|
|
489 |
|
|
490 |
private: // Data
|
|
491 |
/**
|
|
492 |
* Reference to the observer of this class (not owned)
|
|
493 |
*/
|
|
494 |
MWsfWlanScannerObserver* iObserver;
|
|
495 |
|
|
496 |
/**
|
|
497 |
* Reference to the database session to use (not owned)
|
|
498 |
*/
|
|
499 |
CommsDat::CMDBSession* iDbSession;
|
|
500 |
|
|
501 |
/**
|
|
502 |
* Reference to the connection details providing object (not owned)
|
|
503 |
*/
|
|
504 |
MWsfWlanConnectionDetailsProvider* iConnectionDetailsProvider;
|
|
505 |
|
|
506 |
/**
|
|
507 |
* Handle to the WLAN management client (owned)
|
|
508 |
*/
|
|
509 |
CWlanMgmtClient* iWlanMgmtClient;
|
|
510 |
|
|
511 |
/**
|
|
512 |
* Scan info object (owned)
|
|
513 |
*/
|
|
514 |
CWlanScanInfo* iScanInfo;
|
|
515 |
|
|
516 |
/**
|
|
517 |
* WLAN settings monitoring object (owned)
|
|
518 |
*/
|
|
519 |
CWsfWlanSettingsAccessor* iWlanSettingsAccessor;
|
|
520 |
|
|
521 |
/**
|
|
522 |
* The array containing the wlaninfo items found during scanning
|
|
523 |
* (owned)
|
|
524 |
*/
|
|
525 |
CWsfWlanInfoArray* iScanArray;
|
|
526 |
|
|
527 |
/**
|
|
528 |
* Name of the active connection (owned)
|
|
529 |
*/
|
|
530 |
HBufC* iActiveConnectionName;
|
|
531 |
|
|
532 |
/**
|
|
533 |
* Timer for scheduling WLAN scans
|
|
534 |
*/
|
|
535 |
RTimer iTimer;
|
|
536 |
|
|
537 |
/**
|
|
538 |
* Handle to the CmManager
|
|
539 |
*/
|
|
540 |
RCmManagerExt iCmManagerExt;
|
|
541 |
|
|
542 |
/**
|
|
543 |
* Buffer to store the serialized array of wlaninfo items (owned)
|
|
544 |
*/
|
|
545 |
HBufC8* iScanResults;
|
|
546 |
|
|
547 |
/**
|
|
548 |
* The background scan interval in microseconds
|
|
549 |
*/
|
|
550 |
TUint iScanningInterval;
|
|
551 |
|
|
552 |
/**
|
|
553 |
* Value of Show WLAN availability flag
|
|
554 |
*/
|
|
555 |
TBool iShowAvailability;
|
|
556 |
|
|
557 |
/**
|
|
558 |
* Array of SSIDs that are in CommsDat but have not been found
|
|
559 |
* by broadcast scan
|
|
560 |
*/
|
|
561 |
RArray<TWlanSsid> iDirectScanSsids;
|
|
562 |
|
|
563 |
/**
|
|
564 |
* Array of IapIDs that are in CommsDat but have not been found
|
|
565 |
* by broadcast scan
|
|
566 |
*/
|
|
567 |
RArray<TUint> iDirectScanIapIDs;
|
|
568 |
|
|
569 |
/**
|
|
570 |
* Indicates the scanning state
|
|
571 |
*/
|
|
572 |
TWsfScanState iScanState;
|
|
573 |
|
|
574 |
/**
|
|
575 |
* Connected SSID or IAP name
|
|
576 |
*/
|
|
577 |
TBuf8<KWlanMaxAccessPointNameLength> iConnectedSsidOrIap;
|
|
578 |
|
|
579 |
/**
|
|
580 |
* Array containing the available IAP IDs and Signal Strengths
|
|
581 |
*/
|
|
582 |
RArray<TWlanIapAvailabilityData> iAvailableIaps;
|
|
583 |
|
|
584 |
/**
|
|
585 |
* Cache lifetime.
|
|
586 |
* Parameter needed for issuing "get available WLAN IAPs"
|
|
587 |
* request.
|
|
588 |
*/
|
|
589 |
TInt iCacheLifetime;
|
|
590 |
|
|
591 |
/**
|
|
592 |
* Max Delay.
|
|
593 |
* Parameter needed for issuing "get available WLAN IAPs"
|
|
594 |
* request.
|
|
595 |
*/
|
|
596 |
TUint iMaxDelay;
|
|
597 |
|
|
598 |
|
|
599 |
};
|
|
600 |
|
|
601 |
|
|
602 |
#endif // C_WSFWLANSCANNER_H
|
|
603 |
|
|
604 |
// End of file
|