/*
* Copyright (c) 2008-2009 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 WlanLightPsModePowerModeMgr class
*
*/
/*
* %version: 3 %
*/
#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(
WlanContextImpl& /*aCtxImpl*/,
WHA::TQueueId /*aQueueId*/,
TUint16 aEtherType,
TBool aIgnoreThisFrame )
{
TPowerMgmtModeChange powerMgmtModeChange( ENoChange );
if ( aEtherType == KEapolType ||
aEtherType == KWaiType )
{
powerMgmtModeChange = EToActive;
OsTracePrint( KPwrStateTransition, (TUint8*)
("UMAC: WlanLightPsModePowerModeMgr::OnFrameTx: EAPOL or WAI frame; change to Active") );
}
else
{
if ( !aIgnoreThisFrame )
{
OsTracePrint( KPwrStateTransition, (TUint8*)
("UMAC: WlanLightPsModePowerModeMgr::OnFrameTx: count this frame") );
++iToActiveFrameCount;
++iToDeepPsFrameCount;
if ( iToActiveFrameCount >= iToActiveFrameThreshold )
{
powerMgmtModeChange = EToActive;
OsTracePrint( KPwrStateTransition, (TUint8*)
("UMAC: WlanLightPsModePowerModeMgr::OnFrameTx: threshold exceeded; change to Active") );
}
}
else
{
OsTracePrint( KPwrStateTransition, (TUint8*)
("UMAC: WlanLightPsModePowerModeMgr::OnFrameTx: do no count this frame") );
// no further action needed
}
}
return powerMgmtModeChange;
}
// ---------------------------------------------------------------------------
//
// ---------------------------------------------------------------------------
//
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;
}