circuitpython/shared-bindings/rtc/RTC.c

135 lines
4.9 KiB
C

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Noralf Trønnes
* SPDX-FileCopyrightText: Copyright (c) 2013, 2014 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 <string.h>
#include "py/obj.h"
#include "py/objproperty.h"
#include "py/runtime.h"
#include "shared/timeutils/timeutils.h"
#include "shared-bindings/rtc/__init__.h"
#include "shared-bindings/rtc/RTC.h"
#include "shared-bindings/time/__init__.h"
const rtc_rtc_obj_t rtc_rtc_obj = {{&rtc_rtc_type}};
//| class RTC:
//| """Real Time Clock"""
//|
//| def __init__(self) -> None:
//| """This class represents the onboard Real Time Clock. It is a singleton and will always return the same instance."""
//| ...
STATIC mp_obj_t rtc_rtc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// No arguments
mp_arg_check_num(n_args, n_kw, 0, 0, false);
// return constant object
return (mp_obj_t)&rtc_rtc_obj;
}
//| datetime: time.struct_time
//| """The current date and time of the RTC as a `time.struct_time`.
//|
//| This must be set to the current date and time whenever the board loses power::
//|
//| import rtc
//| import time
//|
//| r = rtc.RTC()
//| r.datetime = time.struct_time((2019, 5, 29, 15, 14, 15, 0, -1, -1))
//|
//|
//| Once set, the RTC will automatically update this value as time passes. You can read this
//| property to get a snapshot of the current time::
//|
//| current_time = r.datetime
//| print(current_time)
//| # struct_time(tm_year=2019, tm_month=5, ...)"""
STATIC mp_obj_t rtc_rtc_obj_get_datetime(mp_obj_t self_in) {
timeutils_struct_time_t tm;
common_hal_rtc_get_time(&tm);
return struct_time_from_tm(&tm);
}
MP_DEFINE_CONST_FUN_OBJ_1(rtc_rtc_get_datetime_obj, rtc_rtc_obj_get_datetime);
STATIC mp_obj_t rtc_rtc_obj_set_datetime(mp_obj_t self_in, mp_obj_t datetime) {
timeutils_struct_time_t tm;
struct_time_to_tm(datetime, &tm);
common_hal_rtc_set_time(&tm);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(rtc_rtc_set_datetime_obj, rtc_rtc_obj_set_datetime);
MP_PROPERTY_GETSET(rtc_rtc_datetime_obj,
(mp_obj_t)&rtc_rtc_get_datetime_obj,
(mp_obj_t)&rtc_rtc_set_datetime_obj);
//| calibration: int
//| """The RTC calibration value as an `int`.
//|
//| A positive value speeds up the clock and a negative value slows it down.
//|
//| **Limitations:** Calibration not supported on SAMD, nRF, RP240, Spresense, and STM.
//|
//| Range and value is hardware specific, but one step is often approximately 1 ppm::
//|
//| import rtc
//| import time
//|
//| r = rtc.RTC()
//| r.calibration = 1"""
//|
STATIC mp_obj_t rtc_rtc_obj_get_calibration(mp_obj_t self_in) {
int calibration = common_hal_rtc_get_calibration();
return mp_obj_new_int(calibration);
}
MP_DEFINE_CONST_FUN_OBJ_1(rtc_rtc_get_calibration_obj, rtc_rtc_obj_get_calibration);
STATIC mp_obj_t rtc_rtc_obj_set_calibration(mp_obj_t self_in, mp_obj_t calibration) {
common_hal_rtc_set_calibration(mp_obj_get_int(calibration));
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(rtc_rtc_set_calibration_obj, rtc_rtc_obj_set_calibration);
MP_PROPERTY_GETSET(rtc_rtc_calibration_obj,
(mp_obj_t)&rtc_rtc_get_calibration_obj,
(mp_obj_t)&rtc_rtc_set_calibration_obj);
STATIC const mp_rom_map_elem_t rtc_rtc_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_datetime), MP_ROM_PTR(&rtc_rtc_datetime_obj) },
{ MP_ROM_QSTR(MP_QSTR_calibration), MP_ROM_PTR(&rtc_rtc_calibration_obj) },
};
STATIC MP_DEFINE_CONST_DICT(rtc_rtc_locals_dict, rtc_rtc_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
rtc_rtc_type,
MP_QSTR_RTC,
MP_TYPE_FLAG_HAS_SPECIAL_ACCESSORS,
make_new, rtc_rtc_make_new,
locals_dict, &rtc_rtc_locals_dict
);