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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 microDev
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/runtime.h"
#include "common-hal/watchdog/WatchDogTimer.h"
#include "shared-bindings/watchdog/__init__.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "esp_task_wdt.h"
void esp_task_wdt_isr_user_handler(void) {
mp_obj_exception_clear_traceback(MP_OBJ_FROM_PTR(&mp_watchdog_timeout_exception));
MP_STATE_VM(mp_pending_exception) = &mp_watchdog_timeout_exception;
#if MICROPY_ENABLE_SCHEDULER
if (MP_STATE_VM(sched_state) == MP_SCHED_IDLE) {
MP_STATE_VM(sched_state) = MP_SCHED_PENDING;
}
#endif
}
void common_hal_watchdog_feed(watchdog_watchdogtimer_obj_t *self) {
if (esp_task_wdt_reset() != ESP_OK) {
mp_raise_RuntimeError(translate("watchdog not initialized"));
}
}
void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
if (esp_task_wdt_delete(NULL) == ESP_OK && esp_task_wdt_deinit() == ESP_OK) {
self->mode = WATCHDOGMODE_NONE;
}
}
void watchdog_reset(void) {
common_hal_watchdog_deinit(&common_hal_mcu_watchdogtimer_obj);
}
static void wdt_config(watchdog_watchdogtimer_obj_t *self) {
// enable panic hanler in WATCHDOGMODE_RESET mode
// initialize Task Watchdog Timer (TWDT)
if (esp_task_wdt_init((uint32_t)self->timeout, (self->mode == WATCHDOGMODE_RESET)) != ESP_OK) {
mp_raise_RuntimeError(translate("Initialization failed due to lack of memory"));
}
esp_task_wdt_add(NULL);
}
mp_float_t common_hal_watchdog_get_timeout(watchdog_watchdogtimer_obj_t *self) {
return self->timeout;
}
void common_hal_watchdog_set_timeout(watchdog_watchdogtimer_obj_t *self, mp_float_t new_timeout) {
if ((uint64_t)new_timeout > UINT32_MAX) {
mp_raise_ValueError(translate("timeout duration exceeded the maximum supported value"));
}
if ((uint32_t)self->timeout != (uint32_t)new_timeout) {
self->timeout = new_timeout;
wdt_config(self);
}
}
watchdog_watchdogmode_t common_hal_watchdog_get_mode(watchdog_watchdogtimer_obj_t *self) {
return self->mode;
}
void common_hal_watchdog_set_mode(watchdog_watchdogtimer_obj_t *self, watchdog_watchdogmode_t new_mode) {
if (self->mode != new_mode) {
self->mode = new_mode;
wdt_config(self);
}
}
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