94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2015, Nordic Semiconductor
|
||
|
|
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* \addtogroup nrf52832-dev Device drivers
|
||
|
|
* @{
|
||
|
|
*
|
||
|
|
* \addtogroup nrf52832-watchdog Watchdog driver
|
||
|
|
* @{
|
||
|
|
*
|
||
|
|
* \file
|
||
|
|
* Contiki compatible watchdog driver implementation.
|
||
|
|
* \author
|
||
|
|
* Wojciech Bober <wojciech.bober@nordicsemi.no>
|
||
|
|
*/
|
||
|
|
#include <nrf_drv_wdt.h>
|
||
|
|
#include "app_error.h"
|
||
|
|
#include "contiki-conf.h"
|
||
|
|
|
||
|
|
static nrf_drv_wdt_channel_id wdt_channel_id;
|
||
|
|
static uint8_t wdt_initialized = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief WDT events handler.
|
||
|
|
*/
|
||
|
|
static void wdt_event_handler(void)
|
||
|
|
{
|
||
|
|
LEDS_OFF(LEDS_MASK);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
void
|
||
|
|
watchdog_init(void)
|
||
|
|
{
|
||
|
|
ret_code_t err_code;
|
||
|
|
err_code = nrf_drv_wdt_init(NULL, &wdt_event_handler);
|
||
|
|
APP_ERROR_CHECK(err_code);
|
||
|
|
err_code = nrf_drv_wdt_channel_alloc(&wdt_channel_id);
|
||
|
|
APP_ERROR_CHECK(err_code);
|
||
|
|
wdt_initialized = 1;
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
void
|
||
|
|
watchdog_start(void)
|
||
|
|
{
|
||
|
|
if(wdt_initialized) {
|
||
|
|
nrf_drv_wdt_enable();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
void
|
||
|
|
watchdog_periodic(void)
|
||
|
|
{
|
||
|
|
if(wdt_initialized) {
|
||
|
|
nrf_drv_wdt_channel_feed(wdt_channel_id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
void
|
||
|
|
watchdog_reboot(void)
|
||
|
|
{
|
||
|
|
NVIC_SystemReset();
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
* @}
|
||
|
|
*/
|