/*

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:   Implementation of the WlanLightPsModePowerModeMgr class

*

*/

/*

*/

#include "config.h"

#include "umaclightpsmodepowermodemgr.h"

#include "UmacContextImpl.h"

#include "802dot11.h"

// Default Rx/Tx frame count threshold for considering change to Active mode.

// This value is used if another value hasn't been provided

const TUint KDefaultToActivePacketThreshold = 4;     

// Default Rx/Tx frame count threshold for considering change to Deep PS mode.

// This value is used if another value hasn't been provided

const TUint KDefaultToDeepPsPacketThreshold = 1;     

// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

WlanLightPsModePowerModeMgr::WlanLightPsModePowerModeMgr() : 

    iToActiveFrameCount( 0 ),

    iToActiveFrameThreshold( KDefaultToActivePacketThreshold ),

    iToDeepPsFrameCount( 0 ),

    iToDeepPsFrameThreshold( KDefaultToDeepPsPacketThreshold )

    {

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

WlanLightPsModePowerModeMgr::~WlanLightPsModePowerModeMgr() 

    {

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TPowerMgmtModeChange WlanLightPsModePowerModeMgr::OnFrameTx( 

    WHA::TQueueId /*aQueueId*/,

    TUint16 aEtherType,

    TBool aIgnoreThisFrame )

    {

    TPowerMgmtModeChange powerMgmtModeChange( ENoChange );

    if ( aEtherType == KEapolType ||

        {

        powerMgmtModeChange = EToActive;

        OsTracePrint( KPwrStateTransition, (TUint8*)

        }

    else

        {

        }

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TPowerMgmtModeChange WlanLightPsModePowerModeMgr::OnFrameRx( 

    WlanContextImpl& aCtxImpl,

    WHA::TQueueId aAccessCategory,

    TUint16 aEtherType,

    TBool aIgnoreThisFrame,

    TUint aPayloadLength,

    TDaType aDaType ) 

    {

    TPowerMgmtModeChange powerMgmtModeChange( ENoChange );

    if ( aEtherType == KEapolType ||

         aEtherType == KWaiType )

        {

        powerMgmtModeChange = EToActive;

        OsTracePrint( KPwrStateTransition, (TUint8*)

            ("UMAC: WlanLightPsModePowerModeMgr::OnFrameRx: EAPOL or WAI frame; change to Active") );            

        }

    else

        {

        if ( CountThisFrame( 

                aCtxImpl, 

                aAccessCategory,

                aEtherType,

                aIgnoreThisFrame, 

                aPayloadLength, 

                iUapsdRxFrameLengthThreshold,

                aDaType ) ) 

            {

            ++iToActiveFrameCount;

            ++iToDeepPsFrameCount;

            if ( iToActiveFrameCount >= iToActiveFrameThreshold )

                {

                powerMgmtModeChange = EToActive;

                OsTracePrint( KPwrStateTransition, (TUint8*)

                    ("UMAC: WlanLightPsModePowerModeMgr::OnFrameRx: threshold exceeded; change to Active") );            

                }

            }

        }

    return powerMgmtModeChange;    

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TBool WlanLightPsModePowerModeMgr::OnLightPsToActiveTimerTimeout(

    WlanContextImpl& aCtxImpl )

    {

    OsTracePrint( KPwrStateTransition, (TUint8*)

        ("UMAC: WlanLightPsModePowerModeMgr::OnLightPsToActiveTimerTimeout: ToActiveFrameCount: %d"),

        iToActiveFrameCount );

    iToActiveFrameCount = 0;

    if ( // we are seeking for the opportunity to perform tests on the 

         // current AP

         aCtxImpl.ApTestOpportunitySeekStarted() && 

         // we have not yet indicated to WLAN Mgmt Client the opportunity 

         // to perform tests on the current AP

         !aCtxImpl.ApTestOpportunityIndicated() )

        {

        // Inform WLAN Mgmt Client that this would be the time to start 

        // the testing

        aCtxImpl.iUmac.OnInDicationEvent( EApTestOpportunity );

        // make a note that AP test opportunity has been indicated to 

        // WLAN Mgmt Client

        aCtxImpl.ApTestOpportunityIndicated( ETrue );

        }

    return EFalse;

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TBool WlanLightPsModePowerModeMgr::OnLightPsToDeepPsTimerTimeout()

    {

    OsTracePrint( KPwrStateTransition, (TUint8*)

        ("UMAC: WlanLightPsModePowerModeMgr::OnLightPsToDeepPsTimerTimeout: ToDeepPsFrameCount: %d"),

        iToDeepPsFrameCount );

    if ( iToDeepPsFrameCount < iToDeepPsFrameThreshold )

        {

        return ETrue;

        }

    else

        {

        iToDeepPsFrameCount = 0;

        return EFalse;

        }

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

void WlanLightPsModePowerModeMgr::DoReset()

    {

    OsTracePrint( KPwrStateTransition, (TUint8*)

        ("UMAC: WlanLightPsModePowerModeMgr::DoReset()") );

    iToActiveFrameCount = 0;

    iToDeepPsFrameCount = 0;

    }