/* * refclock_trimbledc - clock driver for the Trimble Data Collector compatible * GPS receivers (4000, 4700, 4800, 7400, ...) * * Greg Brackley (greg@trimble.co.nz) */#ifndef _REFCLOCK_TRIMBLEDC_H#define _REFCLOCK_TRIMBLEDC_H#ifdef HAVE_CONFIG_H#include "config.h"#endif#if defined HAVE_SYS_MODEM_H#include <sys/modem.h>#define TIOCMSET MCSETA#define TIOCMGET MCGETA#define TIOCM_RTS MRTS#endif#ifdef HAVE_TERMIOS_H#include <termios.h>#endif#ifdef HAVE_SYS_IOCTL_H#include <sys/ioctl.h>#endif#include "ntpd.h"#include "ntp_io.h"#include "ntp_control.h"#include "ntp_refclock.h"#include "ntp_unixtime.h"#include "ntp_stdlib.h"/* * GPS Definitions */#define	DESCRIPTION	"Trimble Data Collector GPS" /* Long name */#define	PRECISION	(-20)	/* precision assumed (about 1 us) */#define	REFID		"GPS\0"	/* reference ID */#define NSAMPLES		1#define NSKEEP			1#define TRIMBLEDC_MINPOLL	4#define TRIMBLEDC_MAXPOLL	4/* * I/O Definitions */#if !defined SYS_WINNT#define	DEVICE		"/dev/trimbledc%d" 	/* device name and unit */#else#define	DEVICE		"\\\\.\\COM%d" 		/* device name and unit */#endif#define	SPEED232	B9600		  	/* uart speed (9600 baud) */#define POLL_AVG	10  /* number of samples to average code delay */#define DC_IO_BUFSIZE	512 /* IO buffer */#define DC_MAXLEN	260  /* maximum length TSIP packet *//*  * Leap-Insert and Leap-Delete are encoded as follows: * 	PALISADE_UTC_TIME set   and PALISADE_LEAP_PENDING set: INSERT leap * 	PALISADE_UTC_TIME clear and PALISADE_LEAP_PENDING set: DELETE leap */#define PALISADE_LEAP_WARNING    0x04 /* GPS Leap Warning (see ICD-200) */#define PALISADE_LEAP_PENDING    0x02 /* Leap Pending (24 hours) */#define PALISADE_UTC_TIME        0x01 /* UTC time available */#define mb(_X_) (up->rpt_buf[(_X_ + 1)]) /* shortcut for buffer access *//* Conversion Definitions */#define GPS_PI 		(3.1415926535898)#define	R2D		(180.0/GPS_PI)typedef enum TrimbleDcParseState {  TrimbleParseStateAck,  TrimbleParseStateNak,  TrimbleParseStateData,} TrimbleDcParseState;struct trimbledc_unit {	int		unit;		/* NTP refclock unit number */	int 		polled;		/* flag to detect noreplies */	char		leap_status;	/* leap second flag */	TrimbleDcParseState		rpt_status;		short 		rpt_cnt;		char 		rpt_buf[DC_MAXLEN]; 		char		io_buf[DC_IO_BUFSIZE];	short 		io_ptr[2];	/* 0 = head, 1 = tail */};#endif /* _REFCLOCK_TRIMBLEDC_H */