/* SPDX-License-Identifier: BSD-2-Clause */
/*
* This file contains a typical set of register access routines which may be
* used with the z85c30 chip if accesses to the chip are as follows:
*
* + registers are accessed as bytes
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems.h>
#include <libchip/z85c30.h>
#ifndef _Z85C30_MULTIPLIER
#define _Z85C30_MULTIPLIER 1
#define _Z85C30_NAME(_X) _X
#define _Z85C30_TYPE uint8_t
#endif
/*
* Z85C30 Get Register Routine
*/
uint8_t _Z85C30_NAME(z85c30_get_register)(
uintptr_t ulCtrlPort,
uint8_t ucRegNum
)
{
_Z85C30_TYPE *port;
uint8_t data;
rtems_interrupt_level level;
port = (_Z85C30_TYPE *)ulCtrlPort;
rtems_interrupt_disable(level);
if(ucRegNum) {
*port = ucRegNum;
}
data = *port;
rtems_interrupt_enable(level);
return data;
}
/*
* Z85C30 Set Register Routine
*/
void _Z85C30_NAME(z85c30_set_register)(
uintptr_t ulCtrlPort,
uint8_t ucRegNum,
uint8_t ucData
)
{
_Z85C30_TYPE *port;
rtems_interrupt_level level;
port = (_Z85C30_TYPE *)ulCtrlPort;
rtems_interrupt_disable(level);
if(ucRegNum) {
*port = ucRegNum;
}
*port = ucData;
rtems_interrupt_enable(level);
}
