1 /* 2 * Copyright 2006, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 3 * Copyright 2003, Jeff Ward, jeff@r2d2.stcloudstate.edu. All rights reserved. 4 * 5 * Distributed under the terms of the MIT License. 6 */ 7 #ifndef _KERNEL_REAL_TIME_CLOCK_H 8 #define _KERNEL_REAL_TIME_CLOCK_H 9 10 11 #include <KernelExport.h> 12 13 #include <time.h> 14 15 16 #define RTC_EPOCHE_BASE_YEAR 1970 17 18 typedef struct rtc_info { 19 uint32 time; 20 bool is_gmt; 21 int32 tz_minuteswest; 22 bool tz_dsttime; 23 } rtc_info; 24 25 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 status_t rtc_init(kernel_args *args); 31 bigtime_t rtc_boot_time(void); 32 // Returns the time at which the system was booted in microseconds since Jan 1, 1970 UTC. 33 34 status_t get_rtc_info(rtc_info *info); 35 36 // Both functions use the passed struct tm only partially 37 // (no tm_wday, tm_yday, tm_isdst). 38 uint32 rtc_tm_to_secs(const struct tm *t); 39 void rtc_secs_to_tm(uint32 seconds, struct tm *t); 40 41 bigtime_t _user_system_time(void); 42 status_t _user_set_real_time_clock(uint32 time); 43 status_t _user_set_timezone(int32 timezoneOffset, bool daylightSavingTime); 44 status_t _user_get_timezone(int32 *_timezoneOffset, bool *_daylightSavingTime); 45 status_t _user_set_tzfilename(const char* filename, size_t length, bool isGMT); 46 status_t _user_get_tzfilename(char *filename, size_t length, bool *_isGMT); 47 48 #ifdef __cplusplus 49 } 50 #endif 51 52 #endif /* _KERNEL_REAL_TIME_CLOCK_H */ 53