539 lines
23 KiB
C
539 lines
23 KiB
C
/*
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* /src/NTP/ntp-4/include/mbg_gps166.h,v 4.1 1998/06/12 15:07:30 kardel RELEASE_19990228_A
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*
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* $Created: Sun Jul 20 09:20:50 1997 $
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*
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* Copyright (C) 1997, 1998 by Frank Kardel
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*/
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#ifndef MBG_GPS166_H
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#define MBG_GPS166_H
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/***************************************************************************/
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/* */
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/* File: GPSSERIO.H 4.1 */
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/* */
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/* Project: Common C Library */
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/* */
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/* Compiler: Borland C++ */
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/* */
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/* Author: M. Burnicki, Meinberg Funkuhren */
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/* */
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/* */
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/* Description: */
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/* This file defines structures and codes to be used to access GPS166 */
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/* via its serial interface COM0. COM0 should be set to a high baud */
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/* rate, default is 19200. */
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/* */
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/* Standard GPS166 serial operation is to send a time string that is */
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/* compatible with Meinberg UA31 or PZF535 DCF77 radio remote clocks. */
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/* That string can be transmitted automatically once per second, once */
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/* per minute or on request per ASCII '?'. */
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/* */
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/* Parameter setup or parameter readout works using blocks of binary */
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/* data which have to be isolated from the standard string. A block of */
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/* data starts with a SOH code (ASCII Start Of Header, 0x01) followed */
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/* by a message header with constant length and a data portion with */
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/* variable length. The first field (cmd) of the message header holds */
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/* the command code rsp. the type of data to be transmitted. The next */
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/* field (len) gives the number of data bytes that are transmitted */
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/* after the header. This number ranges from 0 to sizeof( MSG_DATA ). */
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/* The third field (data_csum) holds a checksum of all data bytes and */
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/* the last field of the header finally holds the checksum of the. */
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/* header. */
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/* */
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/***************************************************************************/
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/* the control codes defined below are to be or'ed with a command/type code */
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#define GPS_REQACK 0x8000 /* to GPS166: request acknowledge */
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#define GPS_ACK 0x4000 /* from GPS166: acknowledge a command */
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#define GPS_NACK 0x2000 /* from GPS166: error receiving command */
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#define GPS_CTRL_MSK 0xF000 /* masks control code from command */
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/* The codes below specify commands/types of data to be supplied to GPS166: */
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/* GPS166 auto-message to host */
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/* <20> host request, GPS166 response */
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/* <20> <20> host download to GPS166 */
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/* <20> <20> <20> */
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enum { /* <20> <20> <20> */
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/* system data */
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GPS_AUTO_ON = 0x000, /* <20> <20> <20> X <20> enable auto-messages from GPS166 */
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GPS_AUTO_OFF, /* <20> <20> <20> X <20> disable auto-messages from GPS166 */
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GPS_SW_REV, /* <20> <20> X <20> <20> request software revision */
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GPS_STAT, /* <20> <20> X <20> <20> request status of buffered variables */
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GPS_TIME, /* <20> X <20> <20> X <20> current time or capture or init board time */
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GPS_POS_XYZ, /* <20> <20> X <20> X <20> current position in ECEF coords */
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GPS_POS_LLA, /* <20> <20> X <20> X <20> current position in geographic coords */
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GPS_TZDL, /* <20> <20> X <20> X <20> time zone / daylight saving */
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GPS_PORT_PARM, /* <20> <20> X <20> X <20> parameters of the serial ports */
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GPS_SYNTH, /* <20> <20> X <20> X <20> synthesizer's frequency and phase */
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GPS_ANT_INFO, /* <20> X <20> X <20> <20> time diff after antenna disconnect */
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GPS_UCAP, /* <20> X <20> X <20> <20> user capture */
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/* GPS data */
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GPS_CFGH = 0x100, /* <20> <20> X <20> X <20> SVs' configuration and health codes */
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GPS_ALM, /* <20> <20> X <20> X <20> one SV's almanac */
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GPS_EPH, /* <20> <20> X <20> X <20> one SV's ephemeris */
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GPS_UTC, /* <20> <20> X <20> X <20> UTC correction parameters */
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GPS_IONO, /* <20> <20> X <20> X <20> ionospheric correction parameters */
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GPS_ASCII_MSG /* <20> <20> X <20> <20> the GPS ASCII message */
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};
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/*
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* modelled after GPSDEFS.H Revision 1.5
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*/
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/***************************************************************************/
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/* */
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/* File: GPSDEFS.H 4.1 */
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/* */
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/* Project: Common C Library */
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/* */
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/* Compiler: Borland C++ */
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/* */
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/* Author: M. Burnicki, Meinberg Funkuhren */
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/* */
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/* */
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/* Description: */
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/* General definitions to be used with GPS166 */
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/* GPS166 Rev. 1.23 or above */
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/* */
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/* Modifications: see file GPSLIB.TXT */
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/* */
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/***************************************************************************/
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#define _GPSDEFS_H
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/* the type of various checksums */
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#ifndef _CSUM_DEFINED
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typedef unsigned short CSUM;
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# define _CSUM_DEFINED
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#endif
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/* the message header */
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typedef struct {
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unsigned short gps_cmd;
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unsigned short gps_len;
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unsigned short gps_data_csum;
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unsigned short gps_hdr_csum;
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} GPS_MSG_HDR;
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/* a struct used to hold the software revision information */
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typedef struct {
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unsigned short code; /* e.g. 0x0120 means rev. 1.20 */
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unsigned char name[17]; /* used to identify customized versions */
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} SW_REV;
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/* GPS ASCII message */
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typedef struct {
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CSUM csum; /* checksum of the remaining bytes */
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short valid; /* flag data are valid */
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char s[23]; /* 22 chars GPS ASCII message plus trailing zero */
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} ASCII_MSG;
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#define MIN_SVNO 1 /* min. SV number */
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#define MAX_SVNO 32 /* max. SV number */
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#define N_SVNO ( MAX_SVNO - MIN_SVNO + 1) /* number of possibly active SVs */
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typedef short SVNO; /* the number of a SV */
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typedef unsigned short HEALTH; /* a SV's health code */
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typedef unsigned short CFG; /* a SV's configuration code */
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typedef unsigned short IOD; /* Issue-Of-Data code */
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/* Date and time referred to the linear time scale defined by GPS. */
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/* GPS time is defined by the number of weeks since midnight from */
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/* January 5, 1980 to January 6, 1980 plus the number of seconds of */
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/* the current week plus fractions of a second. GPS time differs from */
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/* UTC because UTC is corrected with leap seconds while GPS time scale */
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/* is continuous. */
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typedef struct {
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unsigned short wn; /* the week number since GPS has been installed */
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unsigned long sec; /* the second of that week */
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unsigned long tick; /* fractions of a second; scale: 1E-7 */
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} T_GPS;
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/* Local date and time computed from GPS time. The current number */
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/* of leap seconds have to be added to get UTC from GPS time. */
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/* Additional corrections could have been made according to the */
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/* time zone/daylight saving parameters (TZDL, see below) defined */
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/* by the user. The status field can be checked to see which corrections */
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/* have been applied. */
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#ifndef _TM_DEFINED
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typedef struct {
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short year; /* 0..9999 */
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char month; /* 1..12 */
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char mday; /* 1..31 */
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short yday; /* 1..366 */
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char wday; /* 0..6 == Sun..Sat */
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char hour; /* 0..23 */
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char minute; /* 0..59 */
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char second; /* 0..59 */
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long frac; /* fractions of a second, scale 1E-7 */
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long offs_from_utc; /* local time's offset from UTC */
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unsigned short status; /* flags */
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} TM;
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/* status flags used with conversion from GPS time to local time */
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# define TM_UTC 0x01 /* UTC correction has been made */
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# define TM_LOCAL 0x02 /* UTC has been converted to local time */
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# define TM_DL_ANN 0x04 /* state of daylight saving is going to change */
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# define TM_DL_ENB 0x08 /* daylight saving is enabled */
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# define TM_LS_ANN 0x10 /* leap second will be inserted */
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# define TM_LS_ENB 0x20 /* current second is leap second */
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# define _TM_DEFINED
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#endif
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/* the status flags below are defined starting with rev. 1.32 */
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#define TM_ANT_DISCONN 0x1000 /* antenna currently disconnected */
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#define TM_SYN_FLAG 0x2000 /* TIME_SYN output is low */
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#define TM_NO_SYNC 0x4000 /* not sync'ed after reset */
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#define TM_NO_POS 0x8000 /* position not computed after reset, */
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/* LOCK LED off */
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/* a struct used to transmit information on date and time */
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typedef struct {
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short channel; /* -1: the current time; 0, 1: capture 0, 1 */
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T_GPS t; /* time in GPS format */
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TM tm; /* that time converted to local time */
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} TTM;
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/* Two types of variables used to store a position. Type XYZ is */
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/* used with a position in earth centered, earth fixed (ECEF) */
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/* coordinates whereas type LLA holds such a position converted */
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/* to geographic coordinates as defined by WGS84 (World Geodetic */
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/* System from 1984). */
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#ifndef _XYZ_DEFINED
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/* sequence and number of components of a cartesian position */
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enum { XP, YP, ZP, N_XYZ };
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/* a type of array holding a cartesian position */
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typedef l_fp XYZ[N_XYZ]; /* values are in [m] */
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# define _XYZ_DEFINED
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#endif
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#ifndef _LLA_DEFINED
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/* sequence and number of components of a geographic position */
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enum { LAT, LON, ALT, N_LLA }; /* latitude, longitude, altitude */
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/* a type of array holding a geographic position */
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typedef l_fp LLA[N_LLA]; /* lon, lat in [rad], alt in [m] */
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# define _LLA_DEFINED
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#endif
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/* Synthesizer parameters. Synthesizer frequency is expressed as a */
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/* four digit decimal number (freq) to be multiplied by 0.1 Hz and an */
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/* base 10 exponent (range). If the effective frequency is less than */
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/* 10 kHz its phase is synchronized corresponding to the variable phase. */
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/* Phase may be in a range from -360<36> to +360<36> with a resolution of 0.1<EFBFBD>, */
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/* so the resulting numbers to be stored are in a range of -3600 to +3600. */
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/* Example: */
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/* Assume the value of freq is 2345 (decimal) and the value of phase is 900. */
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/* If range == 0 the effective frequency is 234.5 Hz with a phase of +90<39>. */
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/* If range == 1 the synthesizer will generate a 2345 Hz output frequency */
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/* and so on. */
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/* Limitations: */
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/* If freq == 0 the synthesizer is disabled. If range == 0 the least */
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/* significant digit of freq is limited to 0, 3, 5 or 6. The resulting */
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/* frequency is shown in the examples below: */
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/* freq == 1230 --> 123.0 Hz */
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/* freq == 1233 --> 123 1/3 Hz (real 1/3 Hz, NOT 123.3 Hz) */
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/* freq == 1235 --> 123.5 Hz */
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/* freq == 1236 --> 123 2/3 Hz (real 2/3 Hz, NOT 123.6 Hz) */
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/* If range == MAX_RANGE the value of freq must not exceed 1200, so the */
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/* output frequency is limited to 12 MHz. */
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/* Phase will be ignored if the resulting frequency is greater or equal */
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/* to 10 kHz. */
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#define MAX_SYNTH_FREQ 1200 /* if range == MAX_SYNTH_RANGE */
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#define MIN_SYNTH_RANGE 0
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#define MAX_SYNTH_RANGE 5
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#define MAX_SYNTH_PHASE 3600
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typedef struct {
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short freq; /* four digits used; scale: 0.1; e.g. 1234 -> 123.4 Hz */
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short range; /* scale factor for freq; 0..MAX_SYNTH_RANGE */
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short phase; /* -MAX_SYNTH_PHASE..+MAX_SYNTH_PHASE; >0 -> pulses later */
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} SYNTH;
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/* Time zone/daylight saving parameters. */
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/* the name of a time zone, 5 characters plus trailing zero */
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typedef char TZ_NAME[6];
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typedef struct {
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long offs; /* offset from UTC to local time [sec] */
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long offs_dl; /* additional offset if daylight saving enabled [sec] */
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TM tm_on; /* date/time when daylight saving starts */
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TM tm_off; /* date/time when daylight saving ends */
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TZ_NAME name[2]; /* names without and with daylight saving enabled */
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} TZDL;
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/* The constant below is defined beginning with software rev. 1.29. */
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/* If the year in tzdl.tmon and tzdl.tm_off is or'ed with that constant, */
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/* the receiver automatically generates daylight saving year by year. */
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/* See GPSLIB.TXT for more information. */
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#define DL_AUTO_FLAG 0x8000
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/* Example: */
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/* for automatic daylight saving enable/disable in Central Europe, */
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/* the variables are to be set as shown below: */
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/* offs = 3600L one hour from UTC */
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/* offs_dl = 3600L one additional hour if daylight saving enabled */
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/* tm_on = first Sunday from March 25, 02:00:00h ( year |= DL_AUTO_FLAG ) */
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/* tm_off = first Sunday from Sept 24, 03:00:00h ( year |= DL_AUTO_FLAG ) */
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/* name[0] == "MEZ " name if daylight saving not enabled */
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/* name[1] == "MESZ " name if daylight saving is enabled */
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/* the structure below was defined in rev. 1.31. It reflects the status */
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/* of the antenna, the times of last disconnect/reconnect and the boards */
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/* clock offset after the phase of disconnection. */
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typedef struct {
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short status; /* current status of antenna */
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TM tm_disconn; /* time of antenna disconnect */
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TM tm_reconn; /* time of antenna reconnect */
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long delta_t; /* clock offset at reconnect time, units: TICKS_PER_SEC */
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} ANT_INFO;
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/* the status field may be set to one of the values below: */
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enum {
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ANT_INVALID, /* struct not set yet because ant. has not been disconn. */
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ANT_DISCONN, /* ant. now disconn., tm_reconn and delta_t not set */
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ANT_RECONN /* ant. has been disconn. and reconn., all fields valid */
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};
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/* Summary of configuration and health data of all SVs. */
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typedef struct {
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CSUM csum; /* checksum of the remaining bytes */
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short valid; /* flag data are valid */
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T_GPS tot_51; /* time of transmission, page 51 */
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T_GPS tot_63; /* time of transmission, page 63 */
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T_GPS t0a; /* complete reference time almanac */
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CFG cfg[N_SVNO]; /* SV configuration from page 63 */
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HEALTH health[N_SVNO]; /* SV health from pages 51, 63 */
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} CFGH;
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/* UTC correction parameters */
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typedef struct {
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CSUM csum; /* checksum of the remaining bytes */
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short valid; /* flag data are valid */
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T_GPS t0t; /* Reference Time UTC Parameters [sec] */
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l_fp A0; /* <20> Clock Correction Coefficient 0 [sec] */
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l_fp A1; /* <20> Clock Correction Coefficient 1 [sec/sec] */
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ushort WNlsf; /* week number of nearest leap second */
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short DNt; /* the day number at the end of which LS is inserted */
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char delta_tls; /* */
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char delta_tlsf; /* */
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} UTC;
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/* a struct used to hold the settings of a serial port */
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#ifndef _COM_PARM_DEFINED
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typedef long BAUD_RATE;
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/* indices used to identify a parameter in the framing string */
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enum { F_DBITS, F_PRTY, F_STBITS };
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/* types of handshake */
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enum { HS_NONE, HS_XONXOFF, HS_RTSCTS };
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typedef struct {
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BAUD_RATE baud_rate; /* e.g. 19200L */
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char framing[4]; /* e.g. "8N1" */
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short handshake; /* a numeric value, only HS_NONE supported yet */
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} COM_PARM;
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#define _COM_PARM_DEFINED
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#endif
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/* the codes below define what has to comes out of the serial ports */
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enum { STR_ON_REQ, STR_PER_SEC,
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STR_PER_MIN, N_STR_MODE_0, /* COM0 and COM1 */
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STR_UCAP = N_STR_MODE_0,
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STR_UCAP_REQ, N_STR_MODE_1 /* COM1 only */
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};
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#define N_COM 2 /* the number of serial ports */
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/* the structure used to store the modes of both serial ports */
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typedef struct {
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COM_PARM com[N_COM]; /* COM0 and COM1 settings */
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u_char mode[N_COM]; /* COM0 and COM1 output mode */
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} PORT_PARM;
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/* Ephemeris parameters of one specific SV. Needed to compute the position */
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/* of a satellite at a given time with high precision. Valid for an */
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/* interval of 4 to 6 hours from start of transmission. */
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typedef struct {
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CSUM csum; /* checksum of the remaining bytes */
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short valid; /* flag data are valid */
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HEALTH health; /* health indication of transmitting SV [---] */
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IOD IODC; /* Issue Of Data, Clock */
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IOD IODE2; /* Issue of Data, Ephemeris (Subframe 2) */
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IOD IODE3; /* Issue of Data, Ephemeris (Subframe 3) */
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T_GPS tt; /* time of transmission */
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T_GPS t0c; /* Reference Time Clock [---] */
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T_GPS t0e; /* Reference Time Ephemeris [---] */
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l_fp sqrt_A; /* Square Root of semi-major Axis [sqrt(m)] */
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l_fp e; /* Eccentricity [---] */
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l_fp M0; /* <20> Mean Anomaly at Ref. Time [rad] */
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l_fp omega; /* <20> Argument of Perigee [rad] */
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l_fp OMEGA0; /* <20> Longit. of Asc. Node of orbit plane [rad] */
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l_fp OMEGADOT; /* <20> Rate of Right Ascension [rad/sec] */
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l_fp deltan; /* <20> Mean Motion Diff. from computed value [rad/sec] */
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l_fp i0; /* <20> Inclination Angle [rad] */
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l_fp idot; /* <20> Rate of Inclination Angle [rad/sec] */
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l_fp crc; /* <20> Cosine Corr. Term to Orbit Radius [m] */
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l_fp crs; /* <20> Sine Corr. Term to Orbit Radius [m] */
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l_fp cuc; /* <20> Cosine Corr. Term to Arg. of Latitude [rad] */
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l_fp cus; /* <20> Sine Corr. Term to Arg. of Latitude [rad] */
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l_fp cic; /* <20> Cosine Corr. Term to Inclination Angle [rad] */
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l_fp cis; /* <20> Sine Corr. Term to Inclination Angle [rad] */
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l_fp af0; /* <20> Clock Correction Coefficient 0 [sec] */
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l_fp af1; /* <20> Clock Correction Coefficient 1 [sec/sec] */
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l_fp af2; /* <20> Clock Correction Coefficient 2 [sec/sec<65>] */
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l_fp tgd; /* <20> estimated group delay differential [sec] */
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u_short URA; /* predicted User Range Accuracy */
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u_char L2code; /* code on L2 channel [---] */
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u_char L2flag; /* L2 P data flag [---] */
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} EPH;
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/* Almanac parameters of one specific SV. A reduced precision set of */
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/* parameters used to check if a satellite is in view at a given time. */
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/* Valid for an interval of more than 7 days from start of transmission. */
|
||
|
||
typedef struct {
|
||
CSUM csum; /* checksum of the remaining bytes */
|
||
short valid; /* flag data are valid */
|
||
|
||
HEALTH health; /* [---] */
|
||
T_GPS t0a; /* Reference Time Almanac [sec] */
|
||
|
||
l_fp sqrt_A; /* Square Root of semi-major Axis [sqrt(m)] */
|
||
l_fp e; /* Eccentricity [---] */
|
||
|
||
l_fp M0; /* <20> Mean Anomaly at Ref. Time [rad] */
|
||
l_fp omega; /* <20> Argument of Perigee [rad] */
|
||
l_fp OMEGA0; /* <20> Longit. of Asc. Node of orbit plane [rad] */
|
||
l_fp OMEGADOT; /* <20> Rate of Right Ascension [rad/sec] */
|
||
l_fp deltai; /* <20> [rad] */
|
||
l_fp af0; /* <20> Clock Correction Coefficient 0 [sec] */
|
||
l_fp af1; /* <20> Clock Correction Coefficient 1 [sec/sec] */
|
||
} ALM;
|
||
|
||
|
||
/* ionospheric correction parameters */
|
||
|
||
typedef struct {
|
||
CSUM csum; /* checksum of the remaining bytes */
|
||
short valid; /* flag data are valid */
|
||
|
||
l_fp alpha_0; /* Ionosph. Corr. Coeff. Alpha 0 [sec] */
|
||
l_fp alpha_1; /* Ionosph. Corr. Coeff. Alpha 1 [sec/deg] */
|
||
l_fp alpha_2; /* Ionosph. Corr. Coeff. Alpha 2 [sec/deg^2] */
|
||
l_fp alpha_3; /* Ionosph. Corr. Coeff. Alpha 3 [sec/deg^3] */
|
||
|
||
l_fp beta_0; /* Ionosph. Corr. Coeff. Beta 0 [sec] */
|
||
l_fp beta_1; /* Ionosph. Corr. Coeff. Beta 1 [sec/deg] */
|
||
l_fp beta_2; /* Ionosph. Corr. Coeff. Beta 2 [sec/deg^2] */
|
||
l_fp beta_3; /* Ionosph. Corr. Coeff. Beta 3 [sec/deg^3] */
|
||
|
||
} IONO;
|
||
|
||
void mbg_tm_str P((unsigned char **, TM *));
|
||
void mbg_tgps_str P((unsigned char **, T_GPS *));
|
||
void get_mbg_header P((unsigned char **, GPS_MSG_HDR *));
|
||
void put_mbg_header P((unsigned char **, GPS_MSG_HDR *));
|
||
void get_mbg_sw_rev P((unsigned char **, SW_REV *));
|
||
void get_mbg_ascii_msg P((unsigned char **, ASCII_MSG *));
|
||
void get_mbg_svno P((unsigned char **, SVNO *));
|
||
void get_mbg_health P((unsigned char **, HEALTH *));
|
||
void get_mbg_cfg P((unsigned char **, CFG *));
|
||
void get_mbg_tgps P((unsigned char **, T_GPS *));
|
||
void get_mbg_tm P((unsigned char **, TM *));
|
||
void get_mbg_ttm P((unsigned char **, TTM *));
|
||
void get_mbg_synth P((unsigned char **, SYNTH *));
|
||
void get_mbg_tzdl P((unsigned char **, TZDL *));
|
||
void get_mbg_antinfo P((unsigned char **, ANT_INFO *));
|
||
void get_mbg_cfgh P((unsigned char **, CFGH *));
|
||
void get_mbg_utc P((unsigned char **, UTC *));
|
||
void get_mbg_lla P((unsigned char **, LLA));
|
||
void get_mbg_xyz P((unsigned char **, XYZ));
|
||
void get_mbg_portparam P((unsigned char **, PORT_PARM *));
|
||
void get_mbg_eph P((unsigned char **, EPH *));
|
||
void get_mbg_alm P((unsigned char **, ALM *));
|
||
void get_mbg_iono P((unsigned char **, IONO *));
|
||
|
||
unsigned long mbg_csum P((unsigned char *, unsigned int));
|
||
|
||
#endif
|
||
/*
|
||
* mbg_gps166.h,v
|
||
* Revision 4.1 1998/06/12 15:07:30 kardel
|
||
* fixed prototyping
|
||
*
|
||
* Revision 4.0 1998/04/10 19:50:42 kardel
|
||
* Start 4.0 release version numbering
|
||
*
|
||
* Revision 1.1 1998/04/10 19:27:34 kardel
|
||
* initial NTP VERSION 4 integration of PARSE with GPS166 binary support
|
||
*
|
||
* Revision 1.1 1997/10/06 20:55:38 kardel
|
||
* new parse structure
|
||
*
|
||
*/
|