1 /* refclock_psc.c:  clock driver for Brandywine PCI-SyncClock32/HP-UX 11.X */
67 #define PRECISION	(-20)	/* precision assumed (1 us)	*/
69 #define DESCRIPTION	"Brandywine PCI-SyncClock32"
116     /* get the address of the mapped regs	*/  in psc_start()
123     pp = peer->procptr;  in psc_start()
124     pp->io.clock_recv = noentry;  in psc_start()
125     pp->io.srcclock = peer;  in psc_start()
126     pp->io.datalen = 0;  in psc_start()
127     pp->io.fd = -1;  in psc_start()
128     pp->unitptr = up;  in psc_start()
129     get_systime(&pp->lastrec);  in psc_start()
130     memcpy(&pp->refid, REFID, 4);  in psc_start()
131     peer->precision = PRECISION;  in psc_start()
132     pp->clockdesc = DESCRIPTION;  in psc_start()
133     up->unit = unit;  in psc_start()
148     if (NULL != peer->procptr->unitptr)  in psc_shutdown()
149 	free(peer->procptr->unitptr);  in psc_shutdown()
161     struct refclockproc	*pp = peer->procptr;  in psc_poll()
166     up = (struct psc_unit *) pp->unitptr;  in psc_poll()
167     tlo = regp[unit]->low_time;		/* latch and read first 4 bytes	*/  in psc_poll()
168     thi = regp[unit]->high_time;	/* read 4 higher order bytes	*/  in psc_poll()
169     status = regp[unit]->device_status;	/* read device status byte	*/  in psc_poll()
173 	if (!up->msg_flag[unit]) {	/* write once to system log	*/  in psc_poll()
177 	    up->msg_flag[unit] = 1;  in psc_poll()
182     get_systime(&pp->lastrec);  in psc_poll()
183     pp->polls++;  in psc_poll()
185     tlo = SWAP(tlo);			/* little to big endian swap on	*/  in psc_poll()
188     pp->day	= BCD2INT3((thi & 0x0FFF0000) >> 16);  in psc_poll()
189     pp->hour	= BCD2INT2((thi & 0x0000FF00) >> 8);  in psc_poll()
190     pp->minute	= BCD2INT2(thi & 0x000000FF);  in psc_poll()
191     pp->second	= BCD2INT2(tlo >> 24);  in psc_poll()
194     pp->nsec	= 1000000*BCD2INT3((tlo & 0x00FFF000) >> 12) +  in psc_poll()
197     snprintf(pp->a_lastcode, sizeof(pp->a_lastcode),  in psc_poll()
198 	     "%3.3d %2.2d:%2.2d:%2.2d.%09ld %02x %08x %08x", pp->day,  in psc_poll()
199 	     pp->hour, pp->minute, pp->second, pp->nsec, status, thi,  in psc_poll()
201     pp->lencode = strlen(pp->a_lastcode);  in psc_poll()
211     record_clock_stats(&peer->srcadr, pp->a_lastcode);	  in psc_poll()
215     if (pp->hour < up->last_hour) {  in psc_poll()
217 	up->msg_flag[0] = up->msg_flag[1] = 0;	/* reset flags	*/  in psc_poll()
219     up->last_hour = pp->hour;  in psc_poll()
226    a leap second pending, so we set the pp->leap flag to LEAP_ADDSECOND.
227    If the BCD data are zero or a date other than today, set pp->leap to
235     regp[unit]->dp_ram_addr = DP_LEAPSEC_DAY10DAY1;  in check_leap_sec()
237     dlo = regp[unit]->dp_ram_data;  in check_leap_sec()
238     regp[unit]->dp_ram_addr = DP_LEAPSEC_DAY1000DAY100;  in check_leap_sec()
240     dhi = regp[unit]->dp_ram_data;  in check_leap_sec()
243     pp->leap = LEAP_NOWARNING;			/* default	*/  in check_leap_sec()
244     if (leap_day && leap_day == pp->day) {  in check_leap_sec()
245 	pp->leap = LEAP_ADDSECOND;		/* leap second today	*/  in check_leap_sec()