90 lines
3 KiB
C
90 lines
3 KiB
C
/*
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* Copyright (c) 2014, SICS Swedish ICT.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* JN516X watchdog support.
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* \author
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* Beshr Al Nahas <beshr@sics.se>
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*
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*/
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#include "dev/watchdog.h"
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#include "AppHardwareApi.h"
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/*---------------------------------------------------------------------------*/
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static int counter = 0;
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/*---------------------------------------------------------------------------*/
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void
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watchdog_init(void)
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{
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counter = 0;
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watchdog_stop();
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/* enable WDT interrupt */
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vAHI_WatchdogException(1);
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}
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/*---------------------------------------------------------------------------*/
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void
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watchdog_start(void)
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{
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/* We setup the watchdog to reset the device after two seconds,
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unless watchdog_periodic() is called. */
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counter--;
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if(counter == 0) {
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vAHI_WatchdogStart(9); /* about 8*2^(9-1)ms=2.048s timeout */
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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watchdog_periodic(void)
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{
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/* This function is called periodically to restart the watchdog
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timer. */
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vAHI_WatchdogRestart();
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}
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/*---------------------------------------------------------------------------*/
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void
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watchdog_stop(void)
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{
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counter++;
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if(counter == 1) {
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vAHI_WatchdogStop();
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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watchdog_reboot(void)
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{
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vAHI_SwReset();
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}
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/*---------------------------------------------------------------------------*/
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