--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wlan_bearer/wlanldd/wlan_symbian/osa_symbian/src/osadfc.cpp	Tue Feb 02 02:03:13 2010 +0200
@@ -0,0 +1,291 @@
+/*
+* Copyright (c) 2007-2009 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:   WlanDfc implementation
+*
+*/
+
+/*
+* %version: 5 %
+*/
+
+#include "osa_includeme.h"
+
+#include <wlandfcclient.h>
+
+#include "osadfc.h"
+#include "osa.h"
+
+// mask value to check is dfc cancel event occurred
+const TUint KDfcCancelledMask( 1 << 0 );
+
+struct WlanDfcImpl : public DBase
+    {
+
+    /**
+     * Ctor
+     *
+     * @since S60 v3.2
+     * @param aWlanDfc wlandfc object
+     * @param aOsa wlanosa object
+     * @param aDfcQueue Pointer to the DFC queue to use
+     */
+    WlanDfcImpl( WlanDfc& aWlanDfc, WlanOsa& aOsa, TDfcQue* aDfcQueue ); 
+
+    /**
+     * Dtor
+     *
+     * @since S60 v3.2
+     */
+    virtual  ~WlanDfcImpl();
+    
+    /**
+     * OS dfc callback method
+     *
+     * @since S60 v3.2
+     * @param aPtr callback context
+     */
+    static void DfcDoToggle( TAny* aPtr );
+
+    /**
+     * osa object reference
+     */
+    WlanOsa&        iOsa;
+
+    /**
+     * dfc object
+     */
+    TDfc            iDfc;    
+
+    /**
+     * dfc client callback interface
+     * Not Own.
+     */
+    MWlanDfcClient* iDfcClient;
+
+    /**
+     * callback context
+     */
+    TInt            iCtx;
+
+    /**
+     * internal state flags
+     */
+    TUint           iFlags;
+
+private:
+
+    // Prohibit copy constructor.
+    WlanDfcImpl( const WlanDfcImpl& );
+    // Prohibit assigment operator.
+    WlanDfcImpl& operator= ( const WlanDfcImpl& );        
+
+    };
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+WlanDfcImpl::WlanDfcImpl( 
+    WlanDfc& aWlanDfc, 
+    WlanOsa& aOsa,
+    TDfcQue* aDfcQueue ) 
+    : iOsa( aOsa ), iDfc( DfcDoToggle, &aWlanDfc, 0 ),
+    iDfcClient( NULL ), iCtx( 0 ), iFlags( 0 ) 
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfcImpl ctor: + this 0x%08x"), this));
+
+    MWlanOsa::Assert( 
+        reinterpret_cast<const TInt8*>(WLAN_FILE), __LINE__,
+        aDfcQueue != NULL );
+
+    iDfc.SetDfcQ( aDfcQueue );
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfcImpl ctor: - this 0x%08x"), this));
+    };
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+WlanDfcImpl::~WlanDfcImpl()
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfcImpl dtor: + this 0x%08x"), this));
+
+    iDfc.Cancel();
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfcImpl dtor: - this 0x%08x"), this));
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void WlanDfcImpl::DfcDoToggle( TAny* aPtr )
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfcImpl::DfcDoToggle: + addr: 0x%08x"), aPtr));
+
+    WlanDfc* ptr( static_cast<WlanDfc*>(aPtr) );
+    ptr->RealDfc();
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfcImpl::DfcDoToggle: - addr: 0x%08x"), aPtr));
+    }
+
+
+// ======== MEMBER FUNCTIONS ========
+
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+WlanDfc::~WlanDfc()
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc dtor + addr: 0x%08x"), this));
+
+    if ( IsValid() )
+        {
+        delete iPimpl;
+        }
+    else
+        {
+        // left intentionally empty
+        }
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc dtor - addr: 0x%08x"), this));
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+WlanDfc::WlanDfc( 
+    WlanOsa& aOsa,
+    void* aDfcQueue ) : iPimpl( NULL )
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc ctor + addr: 0x%08x"), this));
+
+    iPimpl = new WlanDfcImpl( 
+        *this, 
+        aOsa, 
+        reinterpret_cast<TDfcQue*>(aDfcQueue) );
+
+    if ( iPimpl )
+        {
+        // allocation success -> proceed
+        Validate();
+        }
+    else
+        {
+        // allocation failed invalidate object
+        TraceDump(ERROR_LEVEL, ("[WLAN] error: allocation"));
+        Trace( ERROR_LEVEL, 
+            reinterpret_cast<const TInt8*>(WLAN_FILE), __LINE__ );
+
+        InValidate();
+        }
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc ctor - addr: 0x%08x"), this));
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void WlanDfc::RealDfc()
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc::RealDfc: + addr: 0x%08x"), this));
+
+    // acquire system lock
+    Pimpl().iOsa.MutexAcquire();
+
+    if ( !(Pimpl().iFlags & KDfcCancelledMask) )
+        {
+        // DFC has NOT been cancelled
+        Pimpl().iDfcClient->OnDfc( Pimpl().iCtx );
+        }
+    else
+        {
+        TraceDump(DFC_LEVEL, 
+            (("[WLAN] WlanDfc::RealDfc: DFC cancelled -> skip client call")));
+        // left intentionally empty
+        }
+
+    // release system lock
+    Pimpl().iOsa.MutexRelease();
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc::RealDfc: - addr: 0x%08x"), this));
+    }
+
+// ---------------------------------------------------------------------------
+// From class MWlanDfc.
+// 
+// ---------------------------------------------------------------------------
+//
+void WlanDfc::Enqueue( MWlanDfcClient& aDfcClient, TInt aCtx )
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc::Enqueue: + addr: 0x%08x"), this));
+
+    Pimpl().iFlags &= ~KDfcCancelledMask;
+    Pimpl().iDfcClient = &aDfcClient;
+    Pimpl().iCtx = aCtx;
+
+    if ( NKern::CurrentContext() == NKern::EInterrupt )
+        {
+        TraceDump(DFC_LEVEL, 
+            ("[WLAN] WlanDfc::Enqueue: in ISR context"));
+        Pimpl().iDfc.Add();
+        }
+    else
+        {
+        TraceDump(DFC_LEVEL, 
+            ("[WLAN] WlanDfc::Enqueue: in other than ISR context"));
+        Pimpl().iDfc.Enque();
+        }
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc::Enqueue: - addr: 0x%08x"), this));
+    }
+
+// ---------------------------------------------------------------------------
+// From class MWlanDfc.
+// 
+// ---------------------------------------------------------------------------
+//
+void WlanDfc::Dequeue()
+    {
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc::Dequeue: + addr: 0x%08x"), this));
+
+    Pimpl().iFlags |= KDfcCancelledMask;
+    Pimpl().iDfc.Cancel();    
+
+    TraceDump(INFO_LEVEL | DFC_LEVEL, 
+        (("[WLAN] WlanDfc::Dequeue: - addr: 0x%08x"), this));
+    }
+
+
+