radio/src/rtc.h

   1 /*
   2  * Copyright (C) OpenTX
   3  *
   4  * Based on code named
   5  *   th9x - http://code.google.com/p/th9x
   6  *   er9x - http://code.google.com/p/er9x
   7  *   gruvin9x - http://code.google.com/p/gruvin9x
   8  *
   9  * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #ifndef _RTC_H_
  22 #define _RTC_H_
  23
  24 #include <inttypes.h>
  25
  26 #define SECS_PER_HOUR   3600ul
  27 #define SECS_PER_DAY    86400ul
  28 #define TM_YEAR_BASE    1900
  29
  30 #define TIME_T_MIN      (-LONG_MAX)
  31 #define TIME_T_MAX      (LONG_MAX)
  32
  33 typedef long int gtime_t;
  34
  35 struct gtm
  36 {
  37   int8_t tm_sec;                   /* Seconds.     [0-60] (1 leap second) */
  38   int8_t tm_min;                   /* Minutes.     [0-59] */
  39   int8_t tm_hour;                  /* Hours.       [0-23] */
  40   int8_t tm_mday;                  /* Day.         [1-31] */
  41   int8_t tm_mon;                   /* Month.       [0-11] */
  42   uint8_t tm_year;                 /* Year - 1900. Limited to the year 2155. */
  43   int8_t tm_wday;                  /* Day of week. [0-6] */
  44   int16_t tm_yday;                 /* Day of year. [0-365] Needed internally for calculations */
  45 };
  46
  47 extern gtime_t g_rtcTime;
  48 extern uint8_t g_ms100; // global to allow time set function to reset to zero
  49
  50 void rtcInit();
  51 void rtcSetTime(const struct gtm * tm);
  52 gtime_t gmktime (struct gtm *tm);
  53 uint8_t rtcAdjust(uint16_t year, uint8_t mon, uint8_t day, uint8_t hour, uint8_t min, uint8_t sec);
  54
  55 #if defined(__cplusplus) && !defined(SIMU)
  56 extern "C" {
  57 #endif
  58 void gettime(struct gtm * tm);
  59 #if defined(__cplusplus) && !defined(SIMU)
  60 }
  61 #endif
  62
  63 #endif // _RTC_H_