nes-proj/arch/cpu/native/int-master.c
2018-04-02 22:13:56 +01:00

68 lines
2.7 KiB
C

/*
* Copyright (c) 2018, George Oikonomou - http://www.spd.gr
* All rights reserved.
*
* 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.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 HOLDER 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 "contiki.h"
#include "sys/int-master.h"
#include <stdbool.h>
/*---------------------------------------------------------------------------*/
#define DISABLED 0
#define ENABLED 1
/*---------------------------------------------------------------------------*/
static int_master_status_t stat = DISABLED;
/*---------------------------------------------------------------------------*/
void
int_master_enable(void)
{
stat = ENABLED;
}
/*---------------------------------------------------------------------------*/
int_master_status_t
int_master_read_and_disable(void)
{
int_master_status_t rv = stat;
stat = DISABLED;
return rv;
}
/*---------------------------------------------------------------------------*/
void
int_master_status_set(int_master_status_t status)
{
stat = status;
}
/*---------------------------------------------------------------------------*/
bool
int_master_is_enabled(void)
{
return stat == DISABLED ? false : true;
}
/*---------------------------------------------------------------------------*/