/*

* Copyright (c) 2006-2010 Nokia Corporation and/or its subsidiary(-ies).

* 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 WlanPowerModeMgrBase class

*

*/

/*

* %version: 9 %

*/

#include "config.h"

#include "umacpowermodemgrbase.h"

#include "UmacContextImpl.h"

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

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

// 

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

//

WlanPowerModeMgrBase::WlanPowerModeMgrBase() : 

    iUapsdRxFrameLengthThreshold( KDefaultUapsdRxFrameLengthThreshold )

    {

    }

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

// 

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

//

WlanPowerModeMgrBase::~WlanPowerModeMgrBase() 

    {

    }

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

// 

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

//

TPowerMgmtModeChange WlanPowerModeMgrBase::OnPsModeErrorIndication()

    {

    return ENoChange;

    }

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

// 

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

//

TBool WlanPowerModeMgrBase::OnActiveToLightPsTimerTimeout()

    {

    return EFalse;

    }

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

// 

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

//

TBool WlanPowerModeMgrBase::OnLightPsToActiveTimerTimeout(

    WlanContextImpl& /*aCtxImpl*/ )

    {

    return EFalse;

    }

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

// 

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

//

TBool WlanPowerModeMgrBase::OnLightPsToDeepPsTimerTimeout()

    {

    return EFalse;

    }

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

// 

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

//

void WlanPowerModeMgrBase::Reset()

    {

    DoReset();

    }

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

// 

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

//

TBool WlanPowerModeMgrBase::CountThisFrame(     

    WlanContextImpl& aCtxImpl,

    WHA::TQueueId aAccessCategory,

    TUint16 aEtherType,

    TBool aIgnoreThisFrame,

    TUint aPayloadLength,

    TUint16 aUapsdRxFrameLengthThreshold,

    TDaType aDaType )

    {

    TBool countThisFrame( ETrue );

    if ( !( aEtherType == KEapolType ||

            aEtherType == KWaiType ) )

        {

        if ( !aIgnoreThisFrame )

            {

            // this is not a frame to be ignored based on WLAN mgmt client

            // settings. However, check if it should be ignored for other

            // reasons

            if ( aDaType == EBroadcastAddress )

                {

                countThisFrame = EFalse;            

                OsTracePrint( KPwrStateTransition, (TUint8*)

                    ("UMAC: WlanPowerModeMgrBase::CountThisFrame: no; a bcast frame") );

                }

            else if ( aDaType == EMulticastAddress )

                {

                if ( !aCtxImpl.MulticastAddressCount() )

                    {

                    // no multicast MAC filters defined, so no downlink 

                    // multicast data stream expected => don't count the frame

                    countThisFrame = EFalse;

                    OsTracePrint( KPwrStateTransition, (TUint8*)

                        ("UMAC: WlanPowerModeMgrBase::CountThisFrame: no; a mcast frame and no mcast MAC filters defined") );

                    }

                else

                    {

                    // at least one multicast MAC filter defined so a downlink

                    // multicast data stream may be expected => count the frame

                    OsTracePrint( KPwrStateTransition, (TUint8*)

                        ("UMAC: WlanPowerModeMgrBase::CountThisFrame: yes; a mcast frame and at least one mcast MAC filter defined") );

                    }            

                }

            else

                {

                // a unicast frame

                if ( aCtxImpl.UapsdUsedForBestEffort() &&

                     aAccessCategory == WHA::ELegacy &&

                     aPayloadLength < aUapsdRxFrameLengthThreshold )

                    {

                    // U-APSD is being used for Best Effort (Legacy) AC (queue)

                    // and access category of this frame == WHA::ELegacy 

                    // and payload is shorter than the defined threshold =>

                    // don't count this frame

                    countThisFrame = EFalse;

                    OsTracePrint( KPwrStateTransition, (TUint8*)

                        ("UMAC: WlanPowerModeMgrBase::CountThisFrame: no, as uapsd in use for legacy, AC == legacy and payload < thr"));

                    }

                else

                    {

                    OsTracePrint( KPwrStateTransition, (TUint8*)

                        ("UMAC: WlanPowerModeMgrBase::CountThisFrame: yes"));            

                    }

                }            

            }

        else

            {

            // this is a frame to be ignored based on WLAN mgmt client AC settings

            countThisFrame = EFalse;

            OsTracePrint( KPwrStateTransition, (TUint8*)

                ("UMAC: WlanPowerModeMgrBase::CountThisFrame: no, as frames are ignored for this queue/AC: %d"),

                aAccessCategory );

            }

        }

    else

        {

        // EAPOL and WAI frames we always count. Not further actions needed

        OsTracePrint( KPwrStateTransition, (TUint8*)

            ("UMAC: WlanPowerModeMgrBase::CountThisFrame: yes; EAPOL or WAI frame"));            

        }

    return countThisFrame;

    }