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betaflight/src/main/common/time.h
2017-11-06 20:09:24 +01:00

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2.5 KiB
C

/*
* This file is part of Cleanflight.
*
* Cleanflight is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Cleanflight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "config/parameter_group.h"
// time difference, 32 bits always sufficient
typedef int32_t timeDelta_t;
// millisecond time
typedef uint32_t timeMs_t ;
// microsecond time
#ifdef USE_64BIT_TIME
typedef uint64_t timeUs_t;
#define TIMEUS_MAX UINT64_MAX
#else
typedef uint32_t timeUs_t;
#define TIMEUS_MAX UINT32_MAX
#endif
static inline timeDelta_t cmpTimeUs(timeUs_t a, timeUs_t b) { return (timeDelta_t)(a - b); }
#define FORMATTED_DATE_TIME_BUFSIZE 30
#ifdef USE_RTC_TIME
typedef struct timeConfig_s {
int16_t tz_offsetMinutes; // Offset from UTC in minutes, might be positive or negative
} timeConfig_t;
PG_DECLARE(timeConfig_t, timeConfig);
// Milliseconds since Jan 1 1970
typedef int64_t rtcTime_t;
rtcTime_t rtcTimeMake(int32_t secs, uint16_t millis);
int32_t rtcTimeGetSeconds(rtcTime_t *t);
uint16_t rtcTimeGetMillis(rtcTime_t *t);
typedef struct _dateTime_s {
// full year
uint16_t year;
// 1-12
uint8_t month;
// 1-31
uint8_t day;
// 0-23
uint8_t hours;
// 0-59
uint8_t minutes;
// 0-59
uint8_t seconds;
// 0-999
uint16_t millis;
} dateTime_t;
// buf must be at least FORMATTED_DATE_TIME_BUFSIZE
bool dateTimeFormatUTC(char *buf, dateTime_t *dt);
bool dateTimeFormatLocal(char *buf, dateTime_t *dt);
void dateTimeUTCToLocal(dateTime_t *utcDateTime, dateTime_t *localDateTime);
// dateTimeSplitFormatted splits a formatted date into its date
// and time parts. Note that the string pointed by formatted will
// be modifed and will become invalid after calling this function.
bool dateTimeSplitFormatted(char *formatted, char **date, char **time);
bool rtcHasTime(void);
bool rtcGet(rtcTime_t *t);
bool rtcSet(rtcTime_t *t);
bool rtcGetDateTime(dateTime_t *dt);
bool rtcSetDateTime(dateTime_t *dt);
#endif