94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
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* Copyright (c) 2015, Nordic Semiconductor
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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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*/
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/**
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* \addtogroup nrf52832-dev Device drivers
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* @{
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*
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* \addtogroup nrf52832-watchdog Watchdog driver
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* @{
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*
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* \file
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* Contiki compatible watchdog driver implementation.
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#include <nrf_drv_wdt.h>
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#include "app_error.h"
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#include "contiki-conf.h"
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static nrf_drv_wdt_channel_id wdt_channel_id;
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static uint8_t wdt_initialized = 0;
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/**
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* \brief WDT events handler.
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*/
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static void wdt_event_handler(void)
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{
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LEDS_OFF(LEDS_MASK);
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}
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/*---------------------------------------------------------------------------*/
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void
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watchdog_init(void)
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{
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ret_code_t err_code;
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err_code = nrf_drv_wdt_init(NULL, &wdt_event_handler);
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APP_ERROR_CHECK(err_code);
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err_code = nrf_drv_wdt_channel_alloc(&wdt_channel_id);
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APP_ERROR_CHECK(err_code);
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wdt_initialized = 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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if(wdt_initialized) {
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nrf_drv_wdt_enable();
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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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if(wdt_initialized) {
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nrf_drv_wdt_channel_feed(wdt_channel_id);
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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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NVIC_SystemReset();
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}
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/**
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* @}
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* @}
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*/
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