micropython/ports/rp2/machine_rtc.c

127 lines
4.0 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 "Krzysztof Adamski" <k@japko.eu>
*
* 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 <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include "py/nlr.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "py/mphal.h"
#include "py/mperrno.h"
#include "extmod/modmachine.h"
#include "shared/timeutils/timeutils.h"
#include "hardware/rtc.h"
#include "pico/util/datetime.h"
typedef struct _machine_rtc_obj_t {
mp_obj_base_t base;
} machine_rtc_obj_t;
// singleton RTC object
STATIC const machine_rtc_obj_t machine_rtc_obj = {{&machine_rtc_type}};
STATIC mp_obj_t machine_rtc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 0, 0, false);
bool r = rtc_running();
if (!r) {
// This shouldn't happen as rtc_init() is already called in main so
// it's here just in case
rtc_init();
datetime_t t = { .month = 1, .day = 1 };
rtc_set_datetime(&t);
mp_hal_time_ns_set_from_rtc();
}
// return constant object
return (mp_obj_t)&machine_rtc_obj;
}
STATIC mp_obj_t machine_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args == 1) {
bool ret;
datetime_t t;
ret = rtc_get_datetime(&t);
if (!ret) {
mp_raise_OSError(MP_EIO);
}
mp_obj_t tuple[8] = {
mp_obj_new_int(t.year),
mp_obj_new_int(t.month),
mp_obj_new_int(t.day),
mp_obj_new_int(t.dotw),
mp_obj_new_int(t.hour),
mp_obj_new_int(t.min),
mp_obj_new_int(t.sec),
mp_obj_new_int(0)
};
return mp_obj_new_tuple(8, tuple);
} else {
mp_obj_t *items;
mp_obj_get_array_fixed_n(args[1], 8, &items);
datetime_t t = {
.year = mp_obj_get_int(items[0]),
.month = mp_obj_get_int(items[1]),
.day = mp_obj_get_int(items[2]),
.hour = mp_obj_get_int(items[4]),
.min = mp_obj_get_int(items[5]),
.sec = mp_obj_get_int(items[6]),
};
// Deliberately ignore the weekday argument and compute the proper value
t.dotw = timeutils_calc_weekday(t.year, t.month, t.day);
if (!rtc_set_datetime(&t)) {
mp_raise_OSError(MP_EINVAL);
}
mp_hal_time_ns_set_from_rtc();
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_rtc_datetime_obj, 1, 2, machine_rtc_datetime);
STATIC const mp_rom_map_elem_t machine_rtc_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_datetime), MP_ROM_PTR(&machine_rtc_datetime_obj) },
};
STATIC MP_DEFINE_CONST_DICT(machine_rtc_locals_dict, machine_rtc_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
machine_rtc_type,
MP_QSTR_RTC,
MP_TYPE_FLAG_NONE,
make_new, machine_rtc_make_new,
locals_dict, &machine_rtc_locals_dict
);