/elec/propeller-clock

/*

 * nvram.h

 *

 * Copyright (C) 2012 Tim Marston <tim@ed.am> and Dan Marston.

 *

 * This file is part of propeller-clock (hereafter referred to as "this

 * program"). See http://ed.am/dev/software/arduino/propeller-clock for more

 * information.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published

 * by the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

#ifndef _NVRAM_H_

#define _NVRAM_H_

#include <EEPROM.h>

namespace Nvram

{

	enum {

		NVRAM_FONT = 0, // 1 byte

	};

	/**

	 * load something

	 *

	 * @param offset address to load from, use NVRAM_* enum

	 * @param data where to load to

	 */

	template< class T >

	void load( int offset, T &data )

	{

		unsigned char *p = reinterpret_cast< unsigned char * >( &data );

		for( unsigned int a = 0; a < sizeof( T ); a++ )

			*( p++ ) = EEPROM.read( offset++ );

	}

	/**

	 * Save something.

	 *

	 * @param offset address to save to, use NVRAM_* enum

	 * @param data to save

	 */

	template< class T >

	void save( int offset, T &data )

	{

		unsigned char *p = reinterpret_cast< unsigned char * >( &data );

		for( unsigned int a = 0; a < sizeof( T ); a++ )

			EEPROM.write( offset++, *( p++ ) );

	}

}

#endif //_NVRAM_H_