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pps: unify timestamp gathering

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Add a helper function to gather timestamps.  This way clients don't have
to duplicate it.

Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Gordeev 2011-01-12 17:00:50 -08:00 • committed by Linus Torvalds
parent 3003d55b59
commit 6f4229b511
6 changed files with 45 additions and 31 deletions
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20
include/linux/pps_kernel.h
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@ -43,6 +43,10 @@ struct pps_source_info {
struct device *dev;
};
struct pps_event_time {
struct timespec ts_real;
};
/* The main struct */
struct pps_device {
struct pps_source_info info; /* PSS source info */
@ -88,6 +92,20 @@ extern int pps_register_source(struct pps_source_info *info,
extern void pps_unregister_source(int source);
extern int pps_register_cdev(struct pps_device *pps);
extern void pps_unregister_cdev(struct pps_device *pps);
extern void pps_event(int source, struct pps_ktime *ts, int event, void *data);
extern void pps_event(int source, struct pps_event_time *ts, int event,
void *data);
static inline void timespec_to_pps_ktime(struct pps_ktime *kt,
struct timespec ts)
{
kt->sec = ts.tv_sec;
kt->nsec = ts.tv_nsec;
}
static inline void pps_get_ts(struct pps_event_time *ts)
{
getnstimeofday(&ts->ts_real);
}
#endif /* LINUX_PPS_KERNEL_H */