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/*
* This file contains a typical set of register access routines which may be
* used with the icm7170 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).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems.h>
#ifndef _ICM7170_MULTIPLIER
#define _ICM7170_MULTIPLIER 1
#define _ICM7170_NAME(_X) _X
#define _ICM7170_TYPE unsigned8
#endif
#define CALCULATE_REGISTER_ADDRESS( _base, _reg ) \
(_ICM7170_TYPE *)((_base) + ((_reg) * _ICM7170_MULTIPLIER ))
/*
* ICM7170 Get Register Routine
*/
unsigned32 _ICM7170_NAME(icm7170_get_register)(
unsigned32 ulCtrlPort,
unsigned8 ucRegNum
)
{
_ICM7170_TYPE *port;
port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
return *port;
}
/*
* ICM7170 Set Register Routine
*/
void _ICM7170_NAME(icm7170_set_register)(
unsigned32 ulCtrlPort,
unsigned8 ucRegNum,
unsigned32 ucData
)
{
_ICM7170_TYPE *port;
port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
*port = ucData;
}
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