kopia lustrzana https://github.com/micropython/micropython
86 wiersze
3.1 KiB
C
86 wiersze
3.1 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2020-2021 Damien P. George
|
|
*
|
|
* 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 "modmachine.h"
|
|
|
|
#include "hardware/watchdog.h"
|
|
|
|
// The maximum timeout in milliseconds is: 0xffffff / 2 / 1000
|
|
#define WDT_TIMEOUT_MAX 8388
|
|
|
|
typedef struct _machine_wdt_obj_t {
|
|
mp_obj_base_t base;
|
|
} machine_wdt_obj_t;
|
|
|
|
STATIC const machine_wdt_obj_t machine_wdt = {{&machine_wdt_type}};
|
|
|
|
STATIC mp_obj_t machine_wdt_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
|
|
enum { ARG_id, ARG_timeout };
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_id, MP_ARG_INT, {.u_int = 0} },
|
|
{ MP_QSTR_timeout, MP_ARG_INT, {.u_int = 5000} },
|
|
};
|
|
|
|
// Parse the arguments.
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
// Verify the WDT id.
|
|
mp_int_t id = args[ARG_id].u_int;
|
|
if (id != 0) {
|
|
mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("WDT(%d) doesn't exist"), id);
|
|
}
|
|
|
|
// Start the watchdog (timeout is in milliseconds).
|
|
uint32_t timeout = args[ARG_timeout].u_int;
|
|
if (timeout > WDT_TIMEOUT_MAX) {
|
|
mp_raise_ValueError(MP_ERROR_TEXT("timeout exceeds " MP_STRINGIFY(WDT_TIMEOUT_MAX)));
|
|
}
|
|
watchdog_enable(timeout, false);
|
|
|
|
return MP_OBJ_FROM_PTR(&machine_wdt);
|
|
}
|
|
|
|
STATIC mp_obj_t machine_wdt_feed(mp_obj_t self_in) {
|
|
(void)self_in;
|
|
watchdog_update();
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_wdt_feed_obj, machine_wdt_feed);
|
|
|
|
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) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(machine_wdt_locals_dict, machine_wdt_locals_dict_table);
|
|
|
|
const mp_obj_type_t machine_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,
|
|
};
|