53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* Copyright 2006-2007, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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* Copyright 2003, Jeff Ward, jeff@r2d2.stcloudstate.edu. All rights reserved.
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*
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _KERNEL_REAL_TIME_CLOCK_H
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#define _KERNEL_REAL_TIME_CLOCK_H
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#include <KernelExport.h>
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#include <time.h>
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#define RTC_EPOCH_BASE_YEAR 1970
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typedef struct rtc_info {
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uint32 time;
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bool is_gmt;
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int32 tz_minuteswest;
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bool tz_dsttime;
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} rtc_info;
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t rtc_init(kernel_args *args);
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bigtime_t rtc_boot_time(void);
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// Returns the time at which the system was booted in microseconds since Jan 1, 1970 UTC.
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status_t get_rtc_info(rtc_info *info);
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// Both functions use the passed struct tm only partially
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// (no tm_wday, tm_yday, tm_isdst).
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uint32 rtc_tm_to_secs(const struct tm *t);
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void rtc_secs_to_tm(uint32 seconds, struct tm *t);
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bigtime_t _user_system_time(void);
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status_t _user_set_real_time_clock(uint32 time);
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status_t _user_set_timezone(int32 timezoneOffset, bool daylightSavingTime);
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status_t _user_get_timezone(int32 *_timezoneOffset, bool *_daylightSavingTime);
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status_t _user_set_tzfilename(const char* filename, size_t length, bool isGMT);
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status_t _user_get_tzfilename(char *filename, size_t length, bool *_isGMT);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_REAL_TIME_CLOCK_H */
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