16bfe3b41c
Until a time is set, the RTC is not running, and rtc_get_datetime() returns false without assigning to the out-parameter. In CircuitPython, this would manifest as arbitrary values being returned, since uninitialized storage on the stack was being converted into a timestamp.
96 lines
2.7 KiB
C
96 lines
2.7 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 2020 microDev
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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 "shared-bindings/rtc/RTC.h"
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#include <sys/time.h>
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#include "py/runtime.h"
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#include "src/rp2_common/hardware_rtc/include/hardware/rtc.h"
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#include "src/rp2_common/hardware_clocks/include/hardware/clocks.h"
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void common_hal_rtc_init(void) {
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datetime_t t = {
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.year = 2020,
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.month = 1,
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.day = 1,
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.dotw = 3, // 0 is Sunday, so 3 is Wednesday
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.hour = 0,
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.min = 0,
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.sec = 0
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};
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// Start the RTC
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rtc_init();
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rtc_set_datetime(&t);
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}
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void common_hal_rtc_get_time(timeutils_struct_time_t *tm) {
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datetime_t t;
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rtc_get_datetime(&t);
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tm->tm_year = t.year;
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tm->tm_mon = t.month;
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tm->tm_mday = t.day;
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tm->tm_wday = t.dotw;
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tm->tm_hour = t.hour;
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tm->tm_min = t.min;
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tm->tm_sec = t.sec;
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if (tm->tm_wday == 0) {
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tm->tm_wday = 6;
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} else {
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tm->tm_wday-=1;
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}
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}
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void common_hal_rtc_set_time(timeutils_struct_time_t *tm) {
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if (tm->tm_wday == 6) {
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tm->tm_wday = 0;
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} else {
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tm->tm_wday+=1;
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}
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datetime_t t = {
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.year = tm->tm_year,
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.month = tm->tm_mon,
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.day = tm->tm_mday,
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.dotw = tm->tm_wday,
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.hour = tm->tm_hour,
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.min = tm->tm_min,
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.sec = tm->tm_sec
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};
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rtc_set_datetime(&t);
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}
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int common_hal_rtc_get_calibration(void) {
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return 0;
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}
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void common_hal_rtc_set_calibration(int calibration) {
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mp_raise_NotImplementedError(translate("RTC calibration is not supported on this board"));
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}
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