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ICmosRW.h

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00001 // vim:expandtab:autoindent:tabstop=4:shiftwidth=4:filetype=c:
00002 /*
00003  * Copyright (C) 2005 Dell Inc.
00004  *  by Michael Brown <Michael_E_Brown@dell.com>
00005  * Licensed under the Open Software License version 2.1 
00006  * 
00007  * Alternatively, you can redistribute it and/or modify 
00008  * it under the terms of the GNU General Public License as published 
00009  * by the Free Software Foundation; either version 2 of the License, 
00010  * or (at your option) any later version.
00011 
00012  * This program is distributed in the hope that it will be useful, but 
00013  * WITHOUT ANY WARRANTY; without even the implied warranty of 
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
00015  * See the GNU General Public License for more details.
00016  */
00017 
00018 
00019 #ifndef ICMOSRW_H
00020 #define ICMOSRW_H
00021 
00022 // compat header should always be first header
00023 #include "smbios/compat.h"
00024 
00025 // types.h should be first user-defined header.
00026 #include "smbios/types.h"
00027 
00028 #include "smbios/IFactory.h"
00029 #include "smbios/IException.h"
00030 
00031 // abi_prefix should be last header included before declarations
00032 #include "smbios/config/abi_prefix.hpp"
00033 
00034 namespace cmos
00035 {
00037 
00039     // Exceptions
00040     DECLARE_EXCEPTION( CmosException );
00041     DECLARE_EXCEPTION_EX( InvalidCmosRWMode, cmos, CmosException );
00042 
00043     // forward declarations.
00044     class ICmosRW;
00045 
00046     class CmosRWFactory : public virtual factory::IFactory
00047     {
00048     public:
00049         static CmosRWFactory *getFactory();
00050         virtual ~CmosRWFactory() throw();
00051         virtual ICmosRW *getSingleton( ) = 0; // returns singleton
00052         virtual ICmosRW *makeNew( ) = 0; // not for use
00053     protected:
00054         CmosRWFactory();
00055     };
00056 
00057     class ICmosRW  
00058     {
00059     public:
00060         explicit ICmosRW();
00061         virtual u8 readByte( u32 indexPort, u32 dataPort, u32 offset ) const = 0;
00062         virtual void writeByte( u32 indexPort, u32 dataPort, u32 offset, u8 byte ) const = 0;
00063         virtual ~ICmosRW();
00064     private:
00065         ICmosRW( const ICmosRW &source ); 
00066         void operator = (const ICmosRW &source ); 
00067     };
00068 
00082     void readByteArray( const ICmosRW &cmos, u32 indexPort, u32 dataPort, u32 offset, u8* target, u32 count);
00096     void writeByteArray( const ICmosRW &cmos, u32 indexPort, u32 dataPort, u32 offset, const u8* source, u32 count);
00097 
00098 }
00099 
00100 // always should be last thing in header file
00101 #include "smbios/config/abi_suffix.hpp"
00102 
00103 #endif  /* ICMOSRW_H */

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