/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2021 Damien P. George * Copyright (c) 2021 "Robert Hammelrath" * * 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 "shared/timeutils/timeutils.h" #include "modmachine.h" #include "ticks.h" #include "fsl_snvs_lp.h" typedef struct _machine_rtc_obj_t { mp_obj_base_t base; mp_obj_t callback; } machine_rtc_obj_t; // Singleton RTC object. STATIC const machine_rtc_obj_t machine_rtc_obj = {{&machine_rtc_type}}; uint32_t us_offset = 0; // Start the RTC Timer. void machine_rtc_start(void) { SNVS_LP_SRTC_StartTimer(SNVS); // If the date is not set, set it to a more recent start date, // MicroPython's first commit. snvs_lp_srtc_datetime_t srtc_date; SNVS_LP_SRTC_GetDatetime(SNVS, &srtc_date); if (srtc_date.year <= 1970) { srtc_date = (snvs_lp_srtc_datetime_t) { .year = 2013, .month = 10, .day = 14, .hour = 19, .minute = 53, .second = 11, }; SNVS_LP_SRTC_SetDatetime(SNVS, &srtc_date); } } 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); // Return constant object. return (mp_obj_t)&machine_rtc_obj; } STATIC mp_obj_t machine_rtc_datetime_helper(size_t n_args, const mp_obj_t *args) { if (n_args == 1) { // Get date and time. snvs_lp_srtc_datetime_t srtc_date; SNVS_LP_SRTC_GetDatetime(SNVS, &srtc_date); mp_obj_t tuple[8] = { mp_obj_new_int(srtc_date.year), mp_obj_new_int(srtc_date.month), mp_obj_new_int(srtc_date.day), mp_obj_new_int(timeutils_calc_weekday(srtc_date.year, srtc_date.month, srtc_date.day)), mp_obj_new_int(srtc_date.hour), mp_obj_new_int(srtc_date.minute), mp_obj_new_int(srtc_date.second), mp_obj_new_int((ticks_us64() + us_offset) % 1000000), }; return mp_obj_new_tuple(8, tuple); } else { // Set date and time. mp_obj_t *items; mp_int_t year; mp_obj_get_array_fixed_n(args[1], 8, &items); snvs_lp_srtc_datetime_t srtc_date; year = mp_obj_get_int(items[0]); srtc_date.year = year >= 100 ? year : year + 2000; // allow 21 for 2021 srtc_date.month = mp_obj_get_int(items[1]); srtc_date.day = mp_obj_get_int(items[2]); // Ignore weekday at items[3] srtc_date.hour = mp_obj_get_int(items[4]); srtc_date.minute = mp_obj_get_int(items[5]); srtc_date.second = mp_obj_get_int(items[6]); if (SNVS_LP_SRTC_SetDatetime(SNVS, &srtc_date) != kStatus_Success) { mp_raise_ValueError(NULL); } us_offset = (1000000 + mp_obj_get_int(items[7]) - ticks_us64() % 1000000) % 1000000; return mp_const_none; } } STATIC mp_obj_t machine_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) { return machine_rtc_datetime_helper(n_args, args); } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_rtc_datetime_obj, 1, 2, machine_rtc_datetime); STATIC mp_obj_t machine_rtc_now(mp_obj_t self_in) { // Get date and time in CPython order. snvs_lp_srtc_datetime_t srtc_date; SNVS_LP_SRTC_GetDatetime(SNVS, &srtc_date); mp_obj_t tuple[8] = { mp_obj_new_int(srtc_date.year), mp_obj_new_int(srtc_date.month), mp_obj_new_int(srtc_date.day), mp_obj_new_int(srtc_date.hour), mp_obj_new_int(srtc_date.minute), mp_obj_new_int(srtc_date.second), mp_obj_new_int((ticks_us64() + us_offset) % 1000000), mp_const_none, }; return mp_obj_new_tuple(8, tuple); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_rtc_now_obj, machine_rtc_now); STATIC mp_obj_t machine_rtc_init(mp_obj_t self_in, mp_obj_t date) { mp_obj_t args[2] = {self_in, date}; machine_rtc_datetime_helper(2, args); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init); // calibration(cal) // When the argument is a number in the range [-16 to 15], set the calibration value. STATIC mp_obj_t machine_rtc_calibration(mp_obj_t self_in, mp_obj_t cal_in) { mp_int_t cal = 0; snvs_lp_srtc_config_t snvsSrtcConfig; cal = mp_obj_get_int(cal_in); if (cal < -16 || cal > 15) { mp_raise_ValueError(MP_ERROR_TEXT("value out of range -16 to 15")); } else { snvsSrtcConfig.srtcCalEnable = true; snvsSrtcConfig.srtcCalValue = cal & 0x1f; // 5 bit 2's complement SNVS_LP_SRTC_Init(SNVS, &snvsSrtcConfig); } return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_calibration_obj, machine_rtc_calibration); STATIC const mp_rom_map_elem_t machine_rtc_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_rtc_init_obj) }, { MP_ROM_QSTR(MP_QSTR_datetime), MP_ROM_PTR(&machine_rtc_datetime_obj) }, { MP_ROM_QSTR(MP_QSTR_now), MP_ROM_PTR(&machine_rtc_now_obj) }, { MP_ROM_QSTR(MP_QSTR_calibration), MP_ROM_PTR(&machine_rtc_calibration_obj) }, }; STATIC MP_DEFINE_CONST_DICT(machine_rtc_locals_dict, machine_rtc_locals_dict_table); const mp_obj_type_t machine_rtc_type = { { &mp_type_type }, .name = MP_QSTR_RTC, .make_new = machine_rtc_make_new, .locals_dict = (mp_obj_t)&machine_rtc_locals_dict, };