machine_wdt.c

/*
 * This file is part of the MicroPython project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Paul Sokolovsky
 *
 * 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 <string.h>

#include "py/runtime.h"
#include "user_interface.h"
#include "etshal.h"
#include "ets_alt_task.h"

const mp_obj_type_t esp_wdt_type;

typedef struct _machine_wdt_obj_t {
    mp_obj_base_t base;
} machine_wdt_obj_t;

STATIC machine_wdt_obj_t wdt_default = {{&esp_wdt_type}};

STATIC mp_obj_t machine_wdt_make_new(const mp_obj_type_t *type_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
    mp_arg_check_num(n_args, n_kw, 0, 1, false);

    mp_int_t id = 0;
    if (n_args > 0) {
        id = mp_obj_get_int(args[0]);
    }

    switch (id) {
        case 0:
            ets_loop_dont_feed_sw_wdt = 1;
            system_soft_wdt_feed();
            return &wdt_default;
        default:
            mp_raise_ValueError(NULL);
    }
}

STATIC mp_obj_t machine_wdt_feed(mp_obj_t self_in) {
    (void)self_in;
    system_soft_wdt_feed();
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_wdt_feed_obj, machine_wdt_feed);

STATIC mp_obj_t machine_wdt_deinit(mp_obj_t self_in) {
    (void)self_in;
    ets_wdt_disable();
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_wdt_deinit_obj, machine_wdt_deinit);

STATIC const mp_rom_map_elem_t machine_wdt_locals_dict_table[] = {
    { MP_ROM_QSTR(MP_QSTR_feed), MP_ROM_PTR(&machine_wdt_feed_obj) },
    { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_wdt_deinit_obj) },
};
STATIC MP_DEFINE_CONST_DICT(machine_wdt_locals_dict, machine_wdt_locals_dict_table);

const mp_obj_type_t esp_wdt_type = {
    { &mp_type_type },
    .name = MP_QSTR_WDT,
    .make_new = machine_wdt_make_new,
    .locals_dict = (mp_obj_dict_t *)&machine_wdt_locals_dict,
};