Lines Matching full:pps

527  * Important for PPS users: Normally, the pp->lastrec is set to the
530  * nanoseconds). When a PPS offset is available, pp->nsec is forced to
531  * zero and the fraction for pp->lastrec is set to the PPS offset.
1077 		 * necessary for the kernel pps mods to work.
1155 		 * necessary for the kernel pps mods to work.
1462 	 * Solaris serial ports provide PPS pulse capture only on the
1478 	 * If flag3 is lit, select the kernel PPS if we can.
1505  * This routine is called once per second. It snatches the PPS
1524 	 * most recent PPS timestamp.
1549 	/* [Bug 2689] Discard the first sample we read -- if the PPS
1554 	 * Note 1: a better check would compare the PPS time stamp to
1558 	 * Note 2: If we ever again get an all-zero PPS sample, the next
1565 	/* If the PPS source fails to deliver a new sample between
1589 	 * PPS clock to lock in.
1614  * refclock_ppsaugment(...) -- correlate with PPS edge
1616  * This function is used to correlate a receive time stamp with a PPS
1621  * next PPS edge is nearer than the last. (Similiar to what the PPS ATOM
1624  * used if the reference time stamp correlates with the *following* PPS
1628  * stamp near a PPS edge but that close proximity is not required;
1631  * PPS edge can be related to the time stamp, it's best to get it as
1641  *  - no PPS/ATOM unit given
1642  *  - PPS stamp is stale (that is, the difference between the PPS stamp
1654 	const struct refclock_atom * ap	    ,	/* for PPS io	  */
1657 	double			     ppsfudge	/* pps fudge	  */
1682 	/* fetch PPS stamp from ATOM block */
1687 	/* get last active PPS edge before receive */
1695 	/* convert PPS stamp to l_fp and apply fudge */
1700 	/* Get difference between PPS stamp (--> yield) and receive time
1706 	/* check if either the PPS or the STAMP is stale in relation
1711 		return FALSE; /* PPS is stale, don't use it */
1731 #   else /* have no PPS support at all */