dist/ntpd/refclock_arc.c

80  5) Added average signal quality poll
180     signal quality is unknown whatever the flag3 setting.
214     resync failed to reveal a statisfatory signal quality (too low or
274   * Possibly use average or maximum signal quality reported during
349 if so what signal quality (0--5) is available.
495 	int quality;	    /* Quality of reception 0--5 for unit. */
497 	u_long quality_stamp; /* Next time to reset quality average. */
538 #define QUALITY_UNKNOWN	    -1 /* Indicates unknown clock quality. */
539 #define MIN_CLOCK_QUALITY    0 /* Min quality clock will return. */
540 #define MIN_CLOCK_QUALITY_OK 3 /* Min quality for OK reception. */
541 #define MAX_CLOCK_QUALITY    5 /* Max quality clock will return. */
760 	up->quality = QUALITY_UNKNOWN;  /* Trust the clock immediately. */
762 	up->quality = MIN_CLOCK_QUALITY;/* Don't trust the clock yet. */
861 /* Macro indicating action we will take for different quality values. */
895 	  g\r quality request into it to poll for signal quality again.
899 		if(debug > 1) { printf("arc: inserting signal-quality poll.\n"); }
1060 	/* Handle a quality message. */
1075 		if(r == '3') { /* Only use quality value whilst sync in progress. */
1091 			if(debug) { printf("arc: signal quality %d (%d).\n", quality_average, (q & 0xf)); }
1094 			up->quality = quality_average;
1098 				printf("arc: sync finished, signal quality %d: %s\n",
1099 				       up->quality,
1100 				       quality_action(up->quality));
1104 				"ARCRON: sync finished, signal quality %d: %s",
1105 				up->quality,
1106 				quality_action(up->quality));
1113 			/* Clock quality dubious; resync earlier than usual. */
1114 			if((up->quality == QUALITY_UNKNOWN) ||
1115 			   (up->quality < MIN_CLOCK_QUALITY_OK))
1149 	  Append a mark of the clock's received signal quality for the
1151 	  quality value to `6' for his s/w) and terminate the string for
1154 	pp->a_lastcode[pp->lencode] = ((up->quality == QUALITY_UNKNOWN) ?
1155 				       '6' : ('0' + up->quality));
1390 				/* If clock signal quality is
1392 		if(up->quality == QUALITY_UNKNOWN) {
1402 		} else if (up->quality == QUALITY_UNKNOWN) {
1541 		/* First, reset quality value to `unknown' so we can detect */
1542 		/* when a quality message has been responded to by this     */
1544 		up->quality = QUALITY_UNKNOWN;
1562 	/* If clock quality is too poor to trust, indicate a fault. */
1563 	/* If quality is QUALITY_UNKNOWN and ARCRON_KEEN is defined,*/
1569 		(up->quality != QUALITY_UNKNOWN) &&
1571 		(up->quality == QUALITY_UNKNOWN) ||
1573 		(up->quality < MIN_CLOCK_QUALITY_OK)) {
1576 			printf("arc: clock quality %d too poor.\n", up->quality);