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/*
* This file contains a typical set of register access routines which may be
* used with the m48t08 chip if accesses to the chip are as follows:
*
* + registers are accessed as bytes
* + registers are only byte-aligned (no address gaps)
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <rtems.h>
#include <libchip/rtc.h>
#include <libchip/m48t08.h>
#ifndef _M48T08_MULTIPLIER
#define _M48T08_MULTIPLIER 1
#define _M48T08_NAME(_X) _X
#define _M48T08_TYPE uint8_t
#endif
#define CALCULATE_REGISTER_ADDRESS( _base, _reg ) \
(_M48T08_TYPE *)((_base) + ((_reg) * _M48T08_MULTIPLIER ))
/*
* M48T08 Get Register Routine
*/
uint32_t _M48T08_NAME(m48t08_get_register)(
uintptr_t ulCtrlPort,
uint8_t ucRegNum
)
{
_M48T08_TYPE *port;
port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
return *port;
}
/*
* M48T08 Set Register Routine
*/
void _M48T08_NAME(m48t08_set_register)(
uintptr_t ulCtrlPort,
uint8_t ucRegNum,
uint32_t ucData
)
{
_M48T08_TYPE *port;
port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
*port = ucData;
}
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