131 lines
4.2 KiB
C
131 lines
4.2 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/runtime.h"
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#include "shared-bindings/alarm/time/TimeAlarm.h"
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#include "shared-bindings/time/__init__.h"
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#include "lib/timeutils/timeutils.h"
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#include "hardware/gpio.h"
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#include "hardware/rtc.h"
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STATIC bool woke_up = false;
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STATIC bool _timealarm_set = false;
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void timer_callback(void) {
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woke_up = true;
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}
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void common_hal_alarm_time_timealarm_construct(alarm_time_timealarm_obj_t *self, mp_float_t monotonic_time) {
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self->monotonic_time = monotonic_time;
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}
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mp_float_t common_hal_alarm_time_timealarm_get_monotonic_time(alarm_time_timealarm_obj_t *self) {
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return self->monotonic_time;
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}
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mp_obj_t alarm_time_timealarm_find_triggered_alarm(size_t n_alarms, const mp_obj_t *alarms) {
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for (size_t i = 0; i < n_alarms; i++) {
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if (mp_obj_is_type(alarms[i], &alarm_time_timealarm_type)) {
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return alarms[i];
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}
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}
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return mp_const_none;
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}
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mp_obj_t alarm_time_timealarm_create_wakeup_alarm(void) {
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alarm_time_timealarm_obj_t *timer = m_new_obj(alarm_time_timealarm_obj_t);
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timer->base.type = &alarm_time_timealarm_type;
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// TODO: Set monotonic_time based on the RTC state.
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timer->monotonic_time = 0.0f;
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return timer;
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}
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bool alarm_time_timealarm_woke_this_cycle(void) {
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return woke_up;
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}
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void alarm_time_timealarm_reset(void) {
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rtc_disable_alarm();
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woke_up = false;
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}
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void alarm_time_timealarm_set_alarms(bool deep_sleep, size_t n_alarms, const mp_obj_t *alarms) {
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bool timealarm_set = false;
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alarm_time_timealarm_obj_t *timealarm = MP_OBJ_NULL;
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for (size_t i = 0; i < n_alarms; i++) {
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if (!mp_obj_is_type(alarms[i], &alarm_time_timealarm_type)) {
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continue;
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}
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if (timealarm_set) {
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mp_raise_ValueError(translate("Only one alarm.time alarm can be set."));
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}
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timealarm = MP_OBJ_TO_PTR(alarms[i]);
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timealarm_set = true;
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}
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if (!timealarm_set) {
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return;
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}
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if (deep_sleep) {
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_timealarm_set = true;
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}
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// Compute how long to actually sleep, considering the time now.
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mp_float_t mono_seconds_to_date = uint64_to_float(common_hal_time_monotonic_ms()) / 1000.0f;
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mp_float_t wakeup_in_secs = MAX(0.0f, timealarm->monotonic_time - mono_seconds_to_date);
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datetime_t t;
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rtc_get_datetime(&t);
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uint32_t rtc_seconds_to_date = timeutils_seconds_since_2000(t.year, t.month,
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t.day, t.hour, t.min, t.sec);
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// The float value is always slightly under, so add 1 to compensate
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uint32_t alarm_seconds = rtc_seconds_to_date + (uint32_t)wakeup_in_secs + 1;
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timeutils_struct_time_t tm;
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timeutils_seconds_since_2000_to_struct_time(alarm_seconds, &tm);
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// reuse t
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t.hour = tm.tm_hour;
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t.min = tm.tm_min;
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t.sec = tm.tm_sec;
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t.day = tm.tm_mday;
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t.month = tm.tm_mon;
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t.year = tm.tm_year;
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t.dotw = (tm.tm_wday + 1) % 7;
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rtc_set_alarm(&t, &timer_callback);
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woke_up = false;
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}
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bool alarm_time_timealarm_is_set(void) {
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return _timealarm_set;
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}
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