1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/halservices/hal/inc/hal_int.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,99 @@
     1.4 +// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// hal\inc\hal_int.h
    1.18 +// 
    1.19 +// WARNING: This file contains some APIs which are internal and are subject
    1.20 +//          to change without notice. Such APIs should therefore not be used
    1.21 +//          outside the Kernel and Hardware Services package.
    1.22 +//
    1.23 +
    1.24 +#ifndef __HAL_INT_H__
    1.25 +#define __HAL_INT_H__
    1.26 +
    1.27 +#include <hal.h>
    1.28 +#include <e32svr.h>
    1.29 +
    1.30 +// Work around data import/export restriction of X86 compilers
    1.31 +#if defined(__X86__) || defined(__WINS__)
    1.32 +#undef IMPORT_D
    1.33 +#undef EXPORT_D
    1.34 +#define IMPORT_D IMPORT_C
    1.35 +#define EXPORT_D
    1.36 +#endif
    1.37 +
    1.38 +/**
    1.39 +@publishedPartner
    1.40 +@released
    1.41 +
    1.42 +The signature for accessor functions for derived attributes
    1.43 +
    1.44 +@param aDeviceNumber A device number is applicable when a system has
    1.45 +multiple instances of a device. The parameter specifies which one to
    1.46 +interrogate. Eg. a phone may have 2 displays, so it's HAL accessor functions
    1.47 +would access different information depending on whether aDeviceNumber was 0 or 1.
    1.48 +
    1.49 +@param aAttrib The HAL attribute to access.
    1.50 +@param aSet ETrue if the specified attribute should be modified; EFalse for a read.
    1.51 +@param aInOut A pointer to a TInt. If aSet is:
    1.52 +	- ETrue it points to the new value to be written.
    1.53 +	- EFalse it is used to return the value read.
    1.54 +	  It may also be used to pass an argument in,
    1.55 +	  in order to select one of multiple values to retreive.
    1.56 +	  If it is equal to -1 then the function must
    1.57 +	  return KErrArgument so that callers can identify that
    1.58 +	  the function uses aInOut as an input even when aSet is false.
    1.59 +
    1.60 +@return An error code
    1.61 +	- KErrNone
    1.62 +	- KErrArgument aInOut was invalid (may occur for aSet true or false)
    1.63 +*/
    1.64 +typedef TInt (*THalImplementation)(TInt aDeviceNumber, TInt aAttrib, TBool aSet, TAny* aInOut);
    1.65 +
    1.66 +/**
    1.67 +@internalComponent
    1.68 +*/
    1.69 +class HalInternal
    1.70 +	{
    1.71 +public:
    1.72 +	static const TUint8 Properties[HAL::ENumHalAttributes];
    1.73 +	static const TInt Offset[HAL::ENumHalAttributes];
    1.74 +	// InitialValue[] is only exported for patchdata purposes (other executables
    1.75 +	// must not import this array; all access should be through the published Hal
    1.76 +	// APIs).  IMPORT_D needs to be on the declaration here so that it has external
    1.77 +	// linkage (class data is treated differently to non-class data).
    1.78 +	IMPORT_D static const TInt InitialValue[HAL::ENumHalAttributes];
    1.79 +	static const THalImplementation Implementation[HAL::ENumHalAttributes];
    1.80 +	static const TInt HalDataSize;
    1.81 +
    1.82 +	enum THalPanic
    1.83 +		{
    1.84 +		EReadOffsetInvalid=0,
    1.85 +		EWriteOffsetInvalid=1,
    1.86 +		EInitialAllocFailed1=2,
    1.87 +		EInitialAllocFailed2=3,
    1.88 +		EInitialWriteFailed=4,
    1.89 +		EInitialWriteFailed2=5,
    1.90 +		ETlsSizeInvalid=6,
    1.91 +		ENoSuchHalProp=7,
    1.92 +		EGetPropFailed=8,
    1.93 +		ESetPropFailed=9
    1.94 +		};
    1.95 +
    1.96 +	static void Panic(THalPanic aPanic);
    1.97 +	static void InitialiseData();
    1.98 +	static TInt ReadWord(TInt anOffset);
    1.99 +	static TInt WriteWord(TInt anOffset, TInt aValue);
   1.100 +	};
   1.101 +
   1.102 +#endif