circuitpython/ports/raspberrypi/common-hal/watchdog/WatchDogTimer.c

84 lines
3.0 KiB
C
Raw Normal View History

2021-01-28 04:45:15 -05:00
/*
* 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"
2021-01-30 03:30:14 -05:00
#include "src/rp2_common/hardware_watchdog/include/hardware/watchdog.h"
2021-01-28 04:45:15 -05:00
void common_hal_watchdog_feed(watchdog_watchdogtimer_obj_t *self) {
watchdog_update();
}
void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
if (self->mode == WATCHDOGMODE_RESET) {
mp_raise_RuntimeError(translate("WatchDogTimer cannot be deinitialized once mode is set to RESET"));
} else {
self->mode = WATCHDOGMODE_NONE;
}
}
/*
void watchdog_reset(void) {
common_hal_watchdog_deinit(&common_hal_mcu_watchdogtimer_obj);
}
*/
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) {
// max timeout is 8.388607 sec
// this is rounded down to 8.388 sec
uint64_t timeout = new_timeout * 1000;
if (timeout > 8388) {
mp_raise_ValueError(translate("timeout duration exceeded the maximum supported value"));
}
if ((uint16_t)self->timeout != timeout) {
watchdog_enable(timeout, false);
self->timeout = new_timeout;
}
}
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) {
if (new_mode == WATCHDOGMODE_RAISE) {
mp_raise_NotImplementedError(translate("RAISE mode is not implemented"));
} else if (new_mode == WATCHDOGMODE_NONE) {
common_hal_watchdog_deinit(self);
}
self->mode = new_mode;
}
}