wlan_bearer/wlanldd/wlan_common/umac_common/src/umacpowermodemgrbase.cpp
changeset 0 c40eb8fe8501
child 25 a0fdcd0e4c56
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wlan_bearer/wlanldd/wlan_common/umac_common/src/umacpowermodemgrbase.cpp	Tue Feb 02 02:03:13 2010 +0200
@@ -0,0 +1,180 @@
+/*
+* Copyright (c) 2006-2009 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 WlanPowerModeMgrBase class
+*
+*/
+
+/*
+* %version: 8 %
+*/
+
+#include "config.h"
+#include "umacpowermodemgrbase.h"
+#include "UmacContextImpl.h"
+
+// Default frame payload length threshold value (in bytes) for U-APSD
+const TUint32 KUapsdRxFrameLengthThreshold = 400;
+
+
+// ================= MEMBER FUNCTIONS =======================
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+WlanPowerModeMgrBase::WlanPowerModeMgrBase() : 
+    iUapsdRxFrameLengthThreshold( KUapsdRxFrameLengthThreshold )
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+WlanPowerModeMgrBase::~WlanPowerModeMgrBase() 
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+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;
+    }