diff -r 000000000000 -r c40eb8fe8501 wlan_bearer/wlanldd/wlan_symbian/wlanldd_symbian/inc/wlldddmausablememory.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wlan_bearer/wlanldd/wlan_symbian/wlanldd_symbian/inc/wlldddmausablememory.h	Tue Feb 02 02:03:13 2010 +0200
@@ -0,0 +1,114 @@
+/*
+* Copyright (c) 2006-2008 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:   Declaration of the WlanDmaUsableMemory class.
+*
+*/
+
+/*
+* %version: 7 %
+*/
+
+#ifndef C_WLANDMAUSABLEMEMORY_H
+#define C_WLANDMAUSABLEMEMORY_H
+
+class DPlatChunkHw;
+
+/**
+ *  Encapsulates DMA usable memory
+ *
+ *  @since S60 v3.1
+ */
+class WlanDmaUsableMemory 
+    {
+
+public:
+
+    WlanDmaUsableMemory() : 
+      iSizeInBytes( 0 ), iPhysicalRamAddr( 0 ), iFlags( 0 ), iChunk( NULL ) {};
+
+    /**
+     * Init method of the class
+     *
+     * @since S60 3.1
+     * @param aSizeInBytes size of memory in bytes required 
+     * @param aUseCachedMemory ETrue if cached memory shall be used
+     *                         EFalse otherwise
+     * @return if not 0 -> actual size of memory acquired 
+     * (rounded to a multiple of page size).
+     * operation failure upon 0 
+     */
+    TUint32 Init( TUint32 aSizeInBytes, TBool aUseCachedMemory );
+
+    /**
+     * Finit method of the class
+     * Can be called even when the init of the class failed
+     *
+     * @since S60 3.1
+     */
+    void Finit();
+
+    /**
+     * Get the linear address of the memory buffer 
+     *
+     * @since S60 3.1
+     * @param aSizeInBytes size of memory in bytes required 
+     * @returns begin of the memory that can be used for DMA xfer 
+     */
+    TLinAddr Addr( TUint32 aSizeInBytes );
+
+    /**
+     * Get the linear address of the memory buffer 
+     *
+     * @since S60 3.1
+     * @returns begin of the memory that can be used for DMA xfer 
+     */
+    TLinAddr Addr();
+
+protected:
+
+private:
+    
+    // Prohibit copy constructor.
+    WlanDmaUsableMemory ( const WlanDmaUsableMemory& );
+    // Prohibit assigment operator.
+    WlanDmaUsableMemory& operator= ( const WlanDmaUsableMemory& );
+
+private: // data
+
+    static const TUint32 KResourceAcquired = (1 << 0);
+
+    /**
+     * size of memory in bytes
+     */
+    TInt iSizeInBytes;
+
+    /**
+     * physical memory address
+     */
+    TPhysAddr iPhysicalRamAddr;
+
+    /**
+     * internal flags
+     */
+    TUint32 iFlags;
+
+    /**
+     * the actual chunk of memory
+     */
+    DPlatChunkHw* iChunk;
+
+    };
+
+
+#endif // C_WLANDMAUSABLEMEMORY_H