hal.h

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// Copyright (c) 1995-2010 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:
// hal\inc\hal.h
// 
// WARNING: This file contains some APIs which are internal and are subject
//          to change without notice. Such APIs should therefore not be used
//          outside the Kernel and Hardware Services package.
//
 
#ifndef __HAL_H__
#define __HAL_H__
 
#include <e32def.h>
#include <hal_data.h>
#include <e32property.h>
 
 
 
 
class HAL : public HALData
    {
public:
 
    enum TEntryProperty
        {
        EEntryValid=0x1,
        
        
        EEntryDynamic=0x2,
        };
 
    
    struct SEntry
        {
        TInt iProperties;
        
        TInt iValue;
        };
public:
    IMPORT_C static TInt Get(TAttribute aAttribute, TInt& aValue);
 
    
    IMPORT_C static TInt Set(TAttribute aAttribute, TInt aValue);
 
 
    IMPORT_C static TInt GetAll(TInt& aNumEntries, SEntry*& aData);
 
    
    IMPORT_C static TInt Get(TInt aDeviceNumber, TAttribute aAttribute, TInt& aValue);
    
    
    IMPORT_C static TInt Set(TInt aDeviceNumber, TAttribute aAttribute, TInt aValue);
    };
 
 
static const TInt32 KUidHalPropertyKeyBase = 0x1020E306;
 
__ASSERT_COMPILE(HAL::ENumHalAttributes<256); // only 256 UIDs allocated for HAL property keys
 
 
 
#endif