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time: Consolidate the time accessor prototypes

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Right now we have time related prototypes in 3 different header
files. Move it to a single timekeeping header file and move the core
internal stuff into a core private header.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner
2014-07-16 21:04:02 +00:00
committed by John Stultz
parent 7d489d15ce
commit 8b094cd03b
9 changed files with 111 additions and 58 deletions
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78
include/linux/timekeeping.h Normal file
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#ifndef _LINUX_TIMEKEEPING_H
#define _LINUX_TIMEKEEPING_H
/* Included from linux/ktime.h */
void timekeeping_init(void);
extern int timekeeping_suspended;
/*
* Get and set timeofday
*/
extern void do_gettimeofday(struct timeval *tv);
extern int do_settimeofday(const struct timespec *tv);
extern int do_sys_settimeofday(const struct timespec *tv,
const struct timezone *tz);
/*
* Kernel time accessors
*/
unsigned long get_seconds(void);
struct timespec current_kernel_time(void);
/* does not take xtime_lock */
struct timespec __current_kernel_time(void);
/*
* timespec based interfaces
*/
struct timespec get_monotonic_coarse(void);
extern void getrawmonotonic(struct timespec *ts);
extern void monotonic_to_bootbased(struct timespec *ts);
extern void get_monotonic_boottime(struct timespec *ts);
extern void ktime_get_ts(struct timespec *ts);
extern int __getnstimeofday(struct timespec *tv);
extern void getnstimeofday(struct timespec *tv);
extern void getboottime(struct timespec *ts);
#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
#define ktime_get_real_ts(ts) getnstimeofday(ts)
/*
* ktime_t based interfaces
*/
extern ktime_t ktime_get(void);
extern ktime_t ktime_get_real(void);
extern ktime_t ktime_get_boottime(void);
extern ktime_t ktime_get_monotonic_offset(void);
extern ktime_t ktime_get_clocktai(void);
/*
* RTC specific
*/
extern void timekeeping_inject_sleeptime(struct timespec *delta);
/*
* PPS accessor
*/
extern void getnstime_raw_and_real(struct timespec *ts_raw,
struct timespec *ts_real);
/*
* Persistent clock related interfaces
*/
extern bool persistent_clock_exist;
extern int persistent_clock_is_local;
static inline bool has_persistent_clock(void)
{
return persistent_clock_exist;
}
extern void read_persistent_clock(struct timespec *ts);
extern void read_boot_clock(struct timespec *ts);
extern int update_persistent_clock(struct timespec now);
#endif