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119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Cleanflight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "platform.h"
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#include "config/parameter_group.h"
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// time difference, signed 32 bits of microseconds overflows at ~35 minutes
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// this is worth leaving as int32_t for performance reasons, use timeDeltaLarge_t for deltas that can be big
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typedef int32_t timeDelta_t;
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#define TIMEDELTA_MAX INT32_MAX
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// time difference large, signed 64 bits of microseconds overflows at ~300000 years
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typedef int64_t timeDeltaLarge_t;
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#define TIMEDELTALARGE_MAX INT64_MAX
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// millisecond time
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typedef uint32_t timeMs_t;
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#define TIMEMS_MAX UINT32_MAX
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// microsecond time
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#ifdef USE_64BIT_TIME
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typedef uint64_t timeUs_t;
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#define TIMEUS_MAX UINT64_MAX
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#else
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typedef uint32_t timeUs_t;
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#define TIMEUS_MAX UINT32_MAX
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#endif
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// Constants for better readability
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#define MILLISECS_PER_SEC 1000
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#define USECS_PER_SEC (1000 * 1000)
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#define HZ2US(hz) (1000000 / (hz))
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#define US2S(us) ((us) * 1e-6f)
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#define US2MS(us) ((us) * 1e-3f)
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#define MS2US(ms) ((ms) * 1000)
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#define MS2S(ms) ((ms) * 1e-3f)
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#define HZ2S(hz) US2S(HZ2US(hz))
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// Use this function only to get small deltas (difference overflows at ~35 minutes)
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static inline timeDelta_t cmpTimeUs(timeUs_t a, timeUs_t b) { return (timeDelta_t)(a - b); }
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typedef enum {
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TZ_AUTO_DST_OFF,
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TZ_AUTO_DST_EU,
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TZ_AUTO_DST_USA,
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} tz_automatic_dst_e;
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typedef struct timeConfig_s {
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int16_t tz_offset; // Offset from UTC in minutes, might be positive or negative
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uint8_t tz_automatic_dst; // Automatically handle DST or ignore it, values come from tz_automatic_dst_e
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} timeConfig_t;
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PG_DECLARE(timeConfig_t, timeConfig);
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// Milliseconds since Jan 1 1970
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typedef int64_t rtcTime_t;
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rtcTime_t rtcTimeMake(int32_t secs, uint16_t millis);
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int32_t rtcTimeGetSeconds(rtcTime_t *t);
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uint16_t rtcTimeGetMillis(rtcTime_t *t);
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typedef struct _dateTime_s {
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// full year
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uint16_t year;
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// 1-12
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uint8_t month;
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// 1-31
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uint8_t day;
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// 0-23
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uint8_t hours;
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// 0-59
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uint8_t minutes;
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// 0-59
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uint8_t seconds;
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// 0-999
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uint16_t millis;
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} dateTime_t;
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#define FORMATTED_DATE_TIME_BUFSIZE 30
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// buf must be at least FORMATTED_DATE_TIME_BUFSIZE
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bool dateTimeFormatUTC(char *buf, dateTime_t *dt);
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bool dateTimeFormatLocal(char *buf, dateTime_t *dt);
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void dateTimeUTCToLocal(dateTime_t *localDateTime, const dateTime_t *utcDateTime);
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// dateTimeSplitFormatted splits a formatted date into its date
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// and time parts. Note that the string pointed by formatted will
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// be modifed and will become invalid after calling this function.
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bool dateTimeSplitFormatted(char *formatted, char **date, char **time);
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bool rtcHasTime(void);
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bool rtcGet(rtcTime_t *t);
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bool rtcSet(rtcTime_t *t);
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bool rtcGetDateTime(dateTime_t *dt);
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bool rtcGetDateTimeLocal(dateTime_t *dt);
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bool rtcSetDateTime(dateTime_t *dt);
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