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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Syborg Virtual Hardware Memory implementation

    15 

    16 /**

    17  @file

    18  @internalTechnology

    19  @prototype

    20 */

    21 

    22 #ifndef __SYBORGVIRTUALHWMEMORY_H__

    23 #define __SYBORGVIRTUALHWMEMORY_H__

    24 

    25 #include <klib.h>

    26 #include <graphics/virtualvideohwinterface.h>

    27 #include <graphics/guestvideodriverinterfaceconstants.h>

    28 

    29 /**

    30 

    31 Very simple memory manager for platsim virtual HW memory

    32 

    33 */

    34 class DVirtualHWMemoryManager: public DBase

    35     {

    36     struct TAllocatedCell

    37         {

    38         TAllocatedCell( TInt aSize, TUint32 aBase ):

    39             iSize( aSize ),

    40             iBase( aBase ),

    41             iNext( NULL )

    42             {

    43             }

    44         

    45         TInt iSize;

    46         TUint32 iBase;

    47         TAllocatedCell* iNext;

    48         };

    49     

    50 public:

    51     DVirtualHWMemoryManager(TUint32 aBase, TInt aMaxSize);

    52     

    53     TUint32 Allocate(TInt aSize);

    54     

    55     void Deallocate(const TUint32 aPhysicalAddress);

    56 

    57     ~DVirtualHWMemoryManager();

    58 

    59 private:

    60     TAllocatedCell iRoot;

    61     TAllocatedCell iLast;

    62     };

    63 

    64 #endif