Lines Matching +full:pin +full:- +full:dependent

2  * refclock_atom - clock driver for 1-pps signals
25  * This driver furnishes an interface for pulse-per-second (PPS) signals
33  * within +-0.4 s by another means, such as a radio clock or NTP
36  * pin 8 (DCD) of a serial port. This requires a level converter and
37  * may require a one-shot flipflop to lengthen the pulse. The other is
38  * to connect the PPS signal directly to pin 10 (ACK) of a PC paralell
39  * port. These methods are architecture dependent.
41  * This driver requires the Pulse-per-Second API for Unix-like Operating
42  * Systems, Version 1.0, RFC-2783 (PPSAPI). Implementations are
80 #define	PRECISION	(-20)	/* precision assumed (about 1 us) */
115  * atom_start - initialize data for processing
130 	pp = peer->procptr;
131 	peer->precision = PRECISION;
132 	pp->clockdesc = DESCRIPTION;
133 	pp->stratum = STRATUM_UNSPEC;
134 	memcpy((char *)&pp->refid, REFID, 4);
137 	pp->unitptr = up;
144 	up->fddev = tty_open(device, O_RDWR, 0777);
145 	if (up->fddev <= 0) {
154 	return (refclock_ppsapi(up->fddev, &up->atom));
159  * atom_shutdown - shut down the clock
170 	pp = peer->procptr;
171 	up = pp->unitptr;
172 	if (up->fddev > 0)
173 		close(up->fddev);
178  * atom_timer - called once per second
190 	pp = peer->procptr;
191 	up = pp->unitptr;
192 	if (refclock_pps(peer, &up->atom, pp->sloppyclockflag) <= 0)
195 	peer->flags |= FLAG_PPS;
201 	if (pp->sloppyclockflag & CLK_FLAG4) {
203 			 pp->filter[pp->coderecv]);
204 		record_clock_stats(&peer->srcadr, tbuf);
210  * atom_poll - called by the transmit procedure
227 	pp = peer->procptr;
228 	pp->polls++;
229 	if (pp->codeproc == pp->coderecv) {
230 		peer->flags &= ~FLAG_PPS;
234 	pp->lastref = pp->lastrec;