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usr / src / contrib / ntp / ntpd /

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📄 Makefile.am(13.57 KB)
📄 Makefile.in(78.52 KB)
📄 check_y2k.c(15.73 KB)
📄 cmd_args.c(4.25 KB)
📄 complete.conf.in(3.35 KB)
📄 declcond.h(793 B)
📄 invoke-ntp.conf.menu(56 B)
📄 invoke-ntp.conf.texi(104.37 KB)
📄 invoke-ntp.keys.menu(56 B)
📄 invoke-ntp.keys.texi(3.21 KB)
📄 invoke-ntpd.menu(49 B)
📄 invoke-ntpd.texi(23.68 KB)
📄 jupiter.h(9.1 KB)
📄 keyword-gen-utd(57 B)
📄 keyword-gen.c(21.99 KB)
📄 ntp.conf.5man(115.01 KB)
📄 ntp.conf.5mdoc(101.72 KB)
📄 ntp.conf.def(100.75 KB)
📄 ntp.conf.html(126.28 KB)
📄 ntp.conf.man.in(115.01 KB)
📄 ntp.conf.mdoc.in(101.71 KB)
📄 ntp.conf.texi(1.19 KB)
📄 ntp.keys.5man(3.99 KB)
📄 ntp.keys.5mdoc(4.25 KB)
📄 ntp.keys.def(3.65 KB)
📄 ntp.keys.html(8.37 KB)
📄 ntp.keys.man.in(3.99 KB)
📄 ntp.keys.mdoc.in(4.24 KB)
📄 ntp.keys.texi(1.2 KB)
📄 ntp_config.c(117.55 KB)
📄 ntp_control.c(123.14 KB)
📄 ntp_crypto.c(117.09 KB)
📄 ntp_filegen.c(13.42 KB)
📄 ntp_io.c(112.21 KB)
📄 ntp_keyword.h(73.49 KB)
📄 ntp_leapsec.c(31.18 KB)
📄 ntp_leapsec.h(10.95 KB)
📄 ntp_loopfilter.c(40.05 KB)
📄 ntp_monitor.c(13.43 KB)
📄 ntp_parser.c(130.65 KB)
📄 ntp_parser.h(11.36 KB)
📄 ntp_peer.c(27.66 KB)
📄 ntp_prio_q.c(4.54 KB)
📄 ntp_proto.c(150.76 KB)
📄 ntp_refclock.c(43.87 KB)
📄 ntp_request.c(67.25 KB)
📄 ntp_restrict.c(19.06 KB)
📄 ntp_scanner.c(20.74 KB)
📄 ntp_scanner.h(4.43 KB)
📄 ntp_signd.c(5.24 KB)
📄 ntp_timer.c(17.69 KB)
📄 ntp_util.c(22.66 KB)
📄 ntpd-opts.c(71.91 KB)
📄 ntpd-opts.def(17.55 KB)
📄 ntpd-opts.h(14.57 KB)
📄 ntpd.1ntpdman(32.03 KB)
📄 ntpd.1ntpdmdoc(29.07 KB)
📄 ntpd.c(42.16 KB)
📄 ntpd.html(49.68 KB)
📄 ntpd.man.in(32.03 KB)
📄 ntpd.mdoc.in(29.07 KB)
📄 ntpd.texi(3.25 KB)
📄 ntpdbase-opts.def(13.21 KB)
📄 ntpsim.c(17.11 KB)
📄 ppsapi_timepps.h(497 B)
📄 psl0.conf(25 B)
📄 psl1.conf(25 B)
📄 psl2.conf(37 B)
📄 rc_cmdlength.c(800 B)
📄 refclock_acts.c(22.66 KB)
📄 refclock_arbiter.c(12.15 KB)
📄 refclock_arc.c(46.85 KB)
📄 refclock_as2201.c(11.09 KB)
📄 refclock_atom.c(6.63 KB)
📄 refclock_bancomm.c(16.11 KB)
📄 refclock_chronolog.c(7.61 KB)
📄 refclock_chu.c(45.28 KB)
📄 refclock_conf.c(7.25 KB)
📄 refclock_datum.c(22.3 KB)
📄 refclock_dumbclock.c(8.42 KB)
📄 refclock_fg.c(6.89 KB)
📄 refclock_gpsdjson.c(58 KB)
📄 refclock_gpsvme.c(7.77 KB)
📄 refclock_heath.c(12.97 KB)
📄 refclock_hopfpci.c(5.69 KB)
📄 refclock_hopfser.c(7.41 KB)
📄 refclock_hpgps.c(16.38 KB)
📄 refclock_irig.c(30.05 KB)
📄 refclock_jjy.c(144.27 KB)
📄 refclock_jupiter.c(25.66 KB)
📄 refclock_leitch.c(13.27 KB)
📄 refclock_local.c(5.72 KB)
📄 refclock_msfees.c(44.66 KB)
📄 refclock_mx4200.c(41.72 KB)
📄 refclock_neoclock4x.c(29.08 KB)
📄 refclock_nmea.c(50.6 KB)
📄 refclock_oncore.c(121.54 KB)
📄 refclock_palisade.c(35.15 KB)
📄 refclock_palisade.h(6.52 KB)
📄 refclock_parse.c(160.87 KB)
📄 refclock_pcf.c(4.79 KB)
📄 refclock_pst.c(8.09 KB)
📄 refclock_ripencc.c(118.21 KB)
📄 refclock_shm.c(16.96 KB)
📄 refclock_tpro.c(4.69 KB)
📄 refclock_true.c(25.3 KB)
📄 refclock_tsyncpci.c(28.35 KB)
📄 refclock_tt560.c(6.12 KB)
📄 refclock_ulink.c(15.64 KB)
📄 refclock_wwv.c(79.32 KB)
📄 refclock_wwvb.c(15.71 KB)
📄 refclock_zyfer.c(7.38 KB)

Editing: refclock_fg.c

/*
 * refclock_fg - clock driver for the Forum Graphic GPS datating station
 */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#if defined(REFCLOCK) && defined(CLOCK_FG)

#include "ntpd.h"
#include "ntp_io.h"
#include "ntp_refclock.h"
#include "ntp_calendar.h"
#include "ntp_stdlib.h"

/*
 * This driver supports the Forum Graphic GPS dating station.
 * More information about FG GPS is available on http://www.forumgraphic.com
 * Contact das@amt.ru for any question about this driver.
 */

/*
 * Interface definitions
 */
#define	DEVICE		"/dev/fgclock%d"
#define	PRECISION	(-10)	/* precision assumed (about 1 ms) */
#define REFID		"GPS"
#define DESCRIPTION	"Forum Graphic GPS dating station"
#define LENFG		26	/* timecode length */
#define SPEED232        B9600   /* uart speed (9600 baud) */

/*
 * Function prototypes
 */
static	int 	fg_init 	(int);
static	int 	fg_start 	(int, struct peer *);
static	void	fg_shutdown	(int, struct peer *);
static	void	fg_poll		(int, struct peer *);
static	void	fg_receive	(struct recvbuf *);

/* 
 * Forum Graphic unit control structure
 */

struct fgunit {
	int pollnum;	/* Use peer.poll instead? */
	int status; 	/* Hug to check status information on GPS */
	int y2kwarn;	/* Y2K bug */
};

/* 
 * Queries definition
 */
static char fginit[] = { 0x10, 0x48, 0x10, 0x0D, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0 };
static char fgdate[] = { 0x10, 0x44, 0x10, 0x0D, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0 };

/*
 * Transfer vector
 */
struct  refclock refclock_fg = {
	fg_start,		/* start up driver */
	fg_shutdown,		/* shut down driver */
	fg_poll,		/* transmit poll message */
	noentry,		/* not used */
	noentry,		/* initialize driver (not used) */
	noentry,		/* not used */
	NOFLAGS			/* not used */
};

/*
 * fg_init - Initialization of FG GPS.
 */

static int
fg_init(
	int fd
	)
{
	if (write(fd, fginit, LENFG) != LENFG)
		return 0;

return 1;
}

/*
 * fg_start - open the device and initialize data for processing
 */
static int
fg_start(
	int unit,
	struct peer *peer
	)
{
	struct refclockproc *pp;
	struct fgunit *up;
	int fd;
	char device[20];

/*
	 * Open device file for reading.
	 */
	snprintf(device, sizeof(device), DEVICE, unit);

DPRINTF(1, ("starting FG with device %s\n",device));

fd = refclock_open(device, SPEED232, LDISC_CLK);
	if (fd <= 0)
		return (0);
	
	/*
	 * Allocate and initialize unit structure
	 */

up = emalloc(sizeof(struct fgunit));
	memset(up, 0, sizeof(struct fgunit));
	pp = peer->procptr;
	pp->unitptr = up;
	pp->io.clock_recv = fg_receive;
	pp->io.srcclock = peer;
	pp->io.datalen = 0;
	pp->io.fd = fd;
 	if (!io_addclock(&pp->io)) {
		close(fd);
		pp->io.fd = -1;
		return 0;
	}

/*
	 * Initialize miscellaneous variables
	 */
	peer->precision = PRECISION;
	pp->clockdesc = DESCRIPTION;
	memcpy(&pp->refid, REFID, 3);
	up->pollnum = 0;
	
	/* 
	 * Setup dating station to use GPS receiver.
	 * GPS receiver should work before this operation.
	 */
	if(!fg_init(pp->io.fd))
		refclock_report(peer, CEVNT_FAULT);

return (1);
}

/*
 * fg_shutdown - shut down the clock
 */
static void
fg_shutdown(
	int unit,
	struct peer *peer
	)
{
	struct refclockproc *pp;
	struct fgunit *up;
	
	pp = peer->procptr;
	up = pp->unitptr;
	if (pp->io.fd != -1)
		io_closeclock(&pp->io);
	if (up != NULL)
		free(up);
}

/*
 * fg_poll - called by the transmit procedure
 */
static void
fg_poll(
	int unit,
	struct peer *peer
	)
{
	struct refclockproc *pp;
	
	pp = peer->procptr;

/*
	 * Time to poll the clock. The FG clock responds to a
	 * "<DLE>D<DLE><CR>" by returning a timecode in the format specified
	 * above. If nothing is heard from the clock for two polls,
	 * declare a timeout and keep going.
	 */

if (write(pp->io.fd, fgdate, LENFG) != LENFG)
		refclock_report(peer, CEVNT_FAULT);
	else
		pp->polls++;

/*
	if (pp->coderecv == pp->codeproc) {
		refclock_report(peer, CEVNT_TIMEOUT);
		return;
	}
	*/

record_clock_stats(&peer->srcadr, pp->a_lastcode);
	
	return;

}

/*
 * fg_receive - receive data from the serial interface
 */
static void
fg_receive(
	struct recvbuf *rbufp
	)
{
	struct refclockproc *pp;
	struct fgunit *up;
	struct peer *peer;
	char *bpt;

/*
	 * Initialize pointers and read the timecode and timestamp
	 * We can't use gtlin function because we need bynary data in buf */

peer = rbufp->recv_peer;
	pp = peer->procptr;
	up = pp->unitptr;

/*
	 * Below hug to implement receiving of status information
	 */
	if(!up->pollnum) {
		up->pollnum++;
		return;
	}

if (rbufp->recv_length < (LENFG - 2)) {
		refclock_report(peer, CEVNT_BADREPLY);
		return; /* The reply is invalid discard it. */
	}

/* Below I trying to find a correct reply in buffer.
	 * Sometime GPS reply located in the beginnig of buffer,
	 * sometime you can find it with some offset.
	 */

bpt = (char *)rbufp->recv_space.X_recv_buffer;
	while (*bpt != '\x10')
		bpt++;

#define BP2(x) ( bpt[x] & 15 )
#define BP1(x) (( bpt[x] & 240 ) >> 4)
	
	pp->year = BP1(2) * 10 + BP2(2);
	
	if (pp->year == 94) {
		refclock_report(peer, CEVNT_BADREPLY);
		if (!fg_init(pp->io.fd))
			refclock_report(peer, CEVNT_FAULT);
		return;
		 /* GPS is just powered up. The date is invalid -
		 discarding it. Initilize GPS one more time */
		/* Sorry - this driver will broken in 2094 ;) */
	}	
	
	if (pp->year < 99)
		pp->year += 100;

pp->year +=  1900;
	pp->day = 100 * BP2(3) + 10 * BP1(4) + BP2(4);

/*
   After Jan, 10 2000 Forum Graphic GPS receiver had a very strange
   benahour. It doubles day number for an hours in replys after 10:10:10 UTC
   and doubles min every hour at HH:10:ss for a minute.
   Hope it is a problem of my unit only and not a Y2K problem of FG GPS. 
   Below small code to avoid such situation.
*/
	if (up->y2kwarn > 10)
		pp->hour = BP1(6)*10 + BP2(6);
	else
		pp->hour = BP1(5)*10 + BP2(5);

if ((up->y2kwarn > 10) && (pp->hour == 10)) {
		pp->minute = BP1(7)*10 + BP2(7);
		pp->second = BP1(8)*10 + BP2(8);
		pp->nsec = (BP1(9)*10 + BP2(9)) * 1000000;
		pp->nsec += BP1(10) * 1000;
	} else {
		pp->hour = BP1(5)*10 + BP2(5);
		pp->minute = BP1(6)*10 + BP2(6);
		pp->second = BP1(7)*10 + BP2(7);
		pp->nsec = (BP1(8)*10 + BP2(8)) * 1000000;
		pp->nsec += BP1(9) * 1000;
	}

if ((pp->hour == 10) && (pp->minute == 10)) {
		up->y2kwarn++;
	}

snprintf(pp->a_lastcode, sizeof(pp->a_lastcode),
		 "%d %d %d %d %d", pp->year, pp->day, pp->hour,
		 pp->minute, pp->second);
	pp->lencode = strlen(pp->a_lastcode);
	/*get_systime(&pp->lastrec);*/

#ifdef DEBUG
	if (debug)
		printf("fg: time is %04d/%03d %02d:%02d:%02d UTC\n",
		       pp->year, pp->day, pp->hour, pp->minute, pp->second);
#endif
	pp->disp =  (10e-6);
	pp->lastrec = rbufp->recv_time; /* Is it better than get_systime()? */
	/* pp->leap = LEAP_NOWARNING; */

/*
	 * Process the new sample in the median filter and determine the
	 * timecode timestamp.
	 */

if (!refclock_process(pp))
		refclock_report(peer, CEVNT_BADTIME);
	pp->lastref = pp->lastrec;
	refclock_receive(peer);
	return;
}

#else
int refclock_fg_bs;
#endif /* REFCLOCK */

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Editing: refclock_fg.c

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