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https://github.com/RIOT-OS/RIOT.git
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064c799e57
- periph/eeprom.c - periph/wdt.c - periph/gpio_ll_irq.c removed unsupported cpuid and dpgpin feature for atmega8 cpu familly pkg/qdsa: bump the commit hash bump the commit hash after RIOT-OS/qDSA#4 was merged
109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/*
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* Copyright (C) 2019 Inria
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* 2023 Hugues Larrive
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_atmega_common
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* @ingroup drivers_periph_wdt
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* @{
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*
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* @file
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* @brief Implementation of the watchdog peripheral interface
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*
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* @author Alexandre Abadie <alexandre.abadie@inria.fr>
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* @author Hugues Larrive <hugues.larrive@pm.me>
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*
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* @}
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*/
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#include <assert.h>
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#include "cpu.h"
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#include "periph/pm.h"
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#include "periph/wdt.h"
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#include <avr/interrupt.h>
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#include "avr/wdt.h"
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#define ENABLE_DEBUG 0
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#include "debug.h"
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uint8_t wdt_prescaler = WDTO_15MS;
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void wdt_start(void)
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{
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DEBUG("[wdt] start the watchdog\n");
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wdt_enable(wdt_prescaler);
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}
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void wdt_stop(void)
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{
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DEBUG("[wdt] stop the watchdog\n");
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wdt_disable();
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}
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void wdt_kick(void)
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{
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DEBUG("[wdt] reload the watchdog\n");
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wdt_reset();
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wdt_enable(wdt_prescaler);
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}
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void wdt_setup_reboot(uint32_t min_time, uint32_t max_time)
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{
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(void)min_time;
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/* Windowed wdt not supported */
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assert(min_time == 0);
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/* Check reset time limit */
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assert((max_time > NWDT_TIME_LOWER_LIMIT) || \
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(max_time < NWDT_TIME_UPPER_LIMIT));
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/* disable watchdog */
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wdt_disable();
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/* WDTO_8S and WDTO_4S are only available on some devices, we will
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* test on WDP3 as in avr/wdt.h */
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#ifdef WDP3
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if (max_time >= 8000) {
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wdt_prescaler = WDTO_8S;
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}
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else if (max_time >= 4000) {
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wdt_prescaler = WDTO_4S;
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}
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else
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#endif
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if (max_time >= 2000) {
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wdt_prescaler = WDTO_2S;
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}
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else if (max_time >= 1000) {
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wdt_prescaler = WDTO_1S;
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}
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else if (max_time >= 500) {
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wdt_prescaler = WDTO_500MS;
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}
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else if (max_time >= 250) {
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wdt_prescaler = WDTO_250MS;
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}
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else if (max_time >= 125) {
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wdt_prescaler = WDTO_120MS;
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}
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else if (max_time >= 64) {
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wdt_prescaler = WDTO_60MS;
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}
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else if (max_time >= 32) {
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wdt_prescaler = WDTO_30MS;
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}
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else {
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wdt_prescaler = WDTO_15MS;
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}
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DEBUG("[wdt] watchdog setup complete\n");
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}
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