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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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18
drivers/pps/clients/pps-ldisc.c
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@@ -27,26 +27,20 @@
#define PPS_TTY_MAGIC 0x0001
static void pps_tty_dcd_change(struct tty_struct *tty, unsigned int status,
struct timespec *ts)
struct pps_event_time *ts)
{
int id = (long)tty->disc_data;
struct timespec __ts;
struct pps_ktime pps_ts;
struct pps_event_time __ts;
/* First of all we get the time stamp... */
getnstimeofday(&__ts);
pps_get_ts(&__ts);
/* Does caller give us a timestamp? */
if (ts) { /* Yes. Let's use it! */
pps_ts.sec = ts->tv_sec;
pps_ts.nsec = ts->tv_nsec;
} else { /* No. Do it ourself! */
pps_ts.sec = __ts.tv_sec;
pps_ts.nsec = __ts.tv_nsec;
}
if (!ts) /* No. Do it ourself! */
ts = &__ts;
/* Now do the PPS event report */
pps_event(id, &pps_ts, status ? PPS_CAPTUREASSERT : PPS_CAPTURECLEAR,
pps_event(id, ts, status ? PPS_CAPTUREASSERT : PPS_CAPTURECLEAR,
NULL);
pr_debug("PPS %s at %lu on source #%d\n",