Remove nmea-gen.[ch] as wel don't need them anymore

2 files changed, 0 insertions, 539 deletions

diff --git a/src/nmea-gen.c b/src/nmea-gen.c
deleted file mode 100644
index a8c2483..0000000
--- a/src/nmea-gen.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*
-	Garmin protocol to NMEA 0183 converter
-	Copyright (C) 2004 Manuel Kasper <mk@neon1.net>.
-	All rights reserved.
-
-	Input:
-		- D800_Pvt_Data_Type (PID 51)
-		- satellite data record (PID 114)
-
-	Available output sentences:
-		GPGGA, GPRMC, GPGLL, GPGSA, GPGSV
-
-	Known caveats:
-		- DOP (Dilution of Precision) information not available
-		  (Garmin protocol includes EPE only)
-		- DGPS information in GPGGA sentence not returned
-		- speed and course over ground are calculated from the
-		  north/east velocity and may not be accurate
-		- magnetic variation information not available
-		- Garmin 16-bit SNR scale unknown
-
-	---------------------------------------------------------------------------
-
-	Redistribution and use in source and binary forms, with or without
-	modification, are permitted provided that the following conditions are met:
-
-	1. Redistributions of source code must retain the above copyright notice,
-	   this list of conditions and the following disclaimer.
-
-	2. Redistributions in binary form must reproduce the above copyright
-	   notice, this list of conditions and the following disclaimer in the
-	   documentation and/or other materials provided with the distribution.
-
-	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
-	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-	POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <glib.h>
-
-#include "nmea.h"
-#include "garmin.h"
-#include "nmea-gen.h"
-
-#define NMEA_BUF_SIZE		256
-#define NMEA_LATLON_SIZE	16
-#define NMEA_UTC_SIZE		16
-
-double g_lastcourse = -1;
-
-void nmea_getutc(D800_Pvt_Data_Type *pvt, char *utctime, char *utcdate) {
-	int		tmp = 0, dtmp=0;
-
-	/* UTC time of position fix
-		Reminder:
-			pvt->tow = seconds (including fractions) since the start of the week.
-			pvt->wn_days = days since 31-DEC-1989 for the start of the current week
-			  (neither is adjusted for leap seconds)
-			pvt->leap_scnds = leap second adjustment required.
-	*/
-
-	/*
-		The receivers can (and do) return times like 86299.999999 instead
-		of 86300.0   Rounding is required to get the correct time.
-
-		Just capture wn_days for now.
-	*/
-	tmp = rint(pvt->tow);
-	dtmp = pvt->wn_days;
-
-	/*
-		If the result is 604800, it's really the first sample
-		of the new week, so zero out tmp and increment dtmp
-		by a week ( 7 days ).
-	*/
-	if (tmp >= 604800) 
-	{
-		dtmp += 7;
-		tmp = 0;
-	}
-
-	/*
-		At this point we have tmp = seconds since the start
-		of the week, and dtmp = the first day of the week.
-		We now need to correct for leap seconds.  This may actually
-		result in reversing the previous adjustment but the code
-		required to combine the two operations wouldn't be clear.
-	*/
-	tmp -= pvt->leap_scnds;
-	if (tmp < 0)
-	{
-		tmp+= 604800;
-		dtmp -= 7;
-	}
-
-	/*
-		Now we have tmp = seconds since the start if the week,
-		and dtmp = the first day of the week, all corrected for
-		rounding and leap seconds.
-
-		We now convert dtmp to today's day number and tmp to
-		seconds since midnignt.
-	*/
-
-	dtmp += (tmp / 86400);
-	tmp %= 86400;
-
-	if (utctime) {
-		int h, m, s;
-		h = tmp / 3600;
-		m = (tmp - h*3600) / 60;
-		s = (tmp - h*3600 - m*60);
-		sprintf(utctime, "%02d%02d%02d", h, m, s);
-	}
-
-	if (utcdate) {
-		/* Garmin format: number of days since December 31, 1989 */
-		unsigned long jd = dtmp + 2447892;
-		unsigned long w, x, a, b, c, d, e, f;
-		unsigned long day, month, year;
-
-		w = (unsigned long)((jd - 1867216.25)/36524.25);
-		x = w/4;
-		a = jd + 1 + w - x;
-		b = a + 1524;
-		c = (unsigned long)((b - 122.1)/365.25);
-		d = (unsigned long)(365.25 * c);
-		e = (unsigned long)((b-d)/30.6001);
-		f = (unsigned long)(30.6001 * e);
-
-		day = b - d - f;
-		month = e - 1;
-		if (month > 12)
-			month -= 12;
-		year = c - 4716;
-		if (month == 1 || month == 2)
-			year++;
-
-		year -= 2000;
-
-		sprintf(utcdate, "%02d%02d%02d", day, month, year);
-	}
-}
-
-void nmea_fmtlat(double lat, char *latstr) {
-	double	latdeg, tmp;
-	latdeg = rad2deg(fabs(lat));
-	tmp = floor(latdeg);
-	sprintf(latstr, "%02d%07.4f,%c", (int)tmp, (latdeg - tmp) * 60,
-		(lat >= 0) ? 'N' : 'S');
-}
-
-void nmea_fmtlon(double lon, char *lonstr) {
-	double	londeg, tmp;
-	londeg = rad2deg(fabs(lon));
-	tmp = floor(londeg);
-	sprintf(lonstr, "%03d%07.4f,%c", (int)tmp, (londeg - tmp) * 60,
-		(lon >= 0) ? 'E' : 'W');
-}
-
-/*
-	nmea_gpgga()
-	NMEA Global Positioning System Fix Data (GGA)
-
-	sat may be NULL (= 0 satellites in view)
-
-	Caveats:
-		- Horizontal dilution of precision (DOP) not available
-		- DGPS information not available
-*/
-int nmea_gpgga(D800_Pvt_Data_Type *pvt, cpo_sat_data *sat, char *nmeastc) {
-
-	char		buf[NMEA_BUF_SIZE];
-	char		slat[NMEA_LATLON_SIZE], slon[NMEA_LATLON_SIZE];
-	char		utc[NMEA_UTC_SIZE];
-	unsigned char	cksum;
-	int		fix, nsat, i;
-
-	nmea_getutc(pvt, utc, NULL);
-
-	/* latitude */
-	nmea_fmtlat(pvt->lat, slat);
-
-	/* longitude */
-	nmea_fmtlon(pvt->lon, slon);
-
-	/* GPS quality indication */
-	if      (pvt->fix == 0 || pvt->fix == 1)
-		fix = 0;
-	else if (pvt->fix == 2 || pvt->fix == 3)
-		fix = 1;
-	else if (pvt->fix == 4 || pvt->fix == 5)
-		fix = 2;
-	else {
-		fix = 0;
-		fprintf(stderr, "WARNING: unknown fix type %d\n", pvt->fix);
-	}
-
-	/* number of satellites in view */
-	nsat = 0;
-	if (sat != NULL) {
-		for (i = 0; i < SAT_MAX_COUNT; i++) {
-			if (((sat[i].status & SAT_STATUS_MASK) == SAT_STATUS_GOOD) && (sat[i].svid <= MAX_SAT_SVID))
-				nsat++;
-		}
-	}
-
-	sprintf(buf, "GPGGA,%s,%s,%s,%d,%02d,,%.1f,M,%.1f,M,,", utc, slat, slon, fix, nsat,
-		pvt->msl_hght + pvt->alt, -pvt->msl_hght);
-
-	cksum = nmea_cksum(buf);
-
-	sprintf(nmeastc, "$%s*%02X\r\n", buf, cksum);
-
-	return 0;
-}
-
-/*
-	nmea_gprmc()
-	NMEA Recommended Minimum Specific GPS/TRANSIT Data (RMC)
-
-	Caveats:
-		- Speed and course over ground are calculated from
-			the north/east velocity and may not be accurate
-		- Magnetic variation not available
-*/
-int nmea_gprmc(D800_Pvt_Data_Type *pvt, char *nmeastc) {
-
-	char	buf[NMEA_BUF_SIZE];
-	char	slat[NMEA_LATLON_SIZE], slon[NMEA_LATLON_SIZE];
-	char	utctime[NMEA_UTC_SIZE], utcdate[NMEA_UTC_SIZE];
-	double	speed, course;
-	unsigned char	cksum;
-
-	nmea_getutc(pvt, utctime, utcdate);
-
-	/* latitude */
-	nmea_fmtlat(pvt->lat, slat);
-
-	/* longitude */
-	nmea_fmtlon(pvt->lon, slon);
-
-	/* speed over ground */
-	speed = sqrt(pvt->east*pvt->east + pvt->north*pvt->north) * 3.6 / KNOTS_TO_KMH;
-
-	/* course */
-	if (speed < 1.0) {
-		if (g_lastcourse >= 0)
-			course = g_lastcourse;
-		else
-			course = 0;	/* too low to determine course */
-	} else {
-		course = atan2(pvt->east, pvt->north);
-		if (course < 0)
-			course += 2*G_PI;
-		course = rad2deg(course);
-		g_lastcourse = course;	/* remember for later */
-	}
-
-	sprintf(buf, "GPRMC,%s,%c,%s,%s,%05.1f,%05.1f,%s,,", utctime,
-		(pvt->fix >= 2 && pvt->fix <= 5) ? 'A' : 'V',
-		slat, slon, speed, course, utcdate);
-
-	cksum = nmea_cksum(buf);
-
-	sprintf(nmeastc, "$%s*%02X\r\n", buf, cksum);
-
-	return 0;
-}
-
-/*
-	nmea_gpgll()
-	NMEA Geographic Position (GLL)
-*/
-int nmea_gpgll(D800_Pvt_Data_Type *pvt, char *nmeastc) {
-
-	char	buf[NMEA_BUF_SIZE];
-	char	slat[NMEA_LATLON_SIZE], slon[NMEA_LATLON_SIZE];
-	char	utctime[NMEA_UTC_SIZE];
-	unsigned char	cksum;
-
-	nmea_getutc(pvt, utctime, NULL);
-
-	/* latitude */
-	nmea_fmtlat(pvt->lat, slat);
-
-	/* longitude */
-	nmea_fmtlon(pvt->lon, slon);
-
-	sprintf(buf, "GPGLL,%s,%s,%s,%c", slat, slon, utctime,
-		(pvt->fix >= 2 && pvt->fix <= 5) ? 'A' : 'V');
-
-	cksum = nmea_cksum(buf);
-
-	sprintf(nmeastc, "$%s*%02X\r\n", buf, cksum);
-
-	return 0;
-}
-
-/*
-	nmea_gpgsa()
-	NMEA GPS DOP and Active Satellites (GSA)
-
-	sat may be NULL (= 0 satellites)
-
-	Caveats:
-		- DOP information not available
-*/
-int nmea_gpgsa(D800_Pvt_Data_Type *pvt, cpo_sat_data *sat, char *nmeastc) {
-
-	char		buf[NMEA_BUF_SIZE];
-	int		fix, i, nsat = 0;
-	unsigned char	cksum;
-
-	if      (pvt->fix == 0 || pvt->fix == 1)
-		fix = 1;
-	else if (pvt->fix == 2 || pvt->fix == 4)
-		fix = 2;
-	else if (pvt->fix == 3 || pvt->fix == 5)
-		fix = 3;
-	else {
-		fix = 1;
-		fprintf(stderr, "WARNING: unknown fix type %d\n", pvt->fix);
-	}
-
-	sprintf(buf, "GPGSA,A,%d", fix);
-
-	if (sat != NULL) {
-		for (i = 0; i < SAT_MAX_COUNT; i++) {
-//			if (((sat[i].status & SAT_STATUS_MASK) == SAT_STATUS_GOOD) && (sat[i].svid <= MAX_SAT_SVID) && (sat[i].snr > 0)) {
-			if (((sat[i].status & SAT_STATUS_MASK) == SAT_STATUS_GOOD) && (sat[i].svid <= MAX_SAT_SVID)) {
-#ifdef DEBUG
-				g_debug ("%s:     using sat %2d", __FUNCTION__, sat[i].svid);
-#endif
-				sprintf(buf+strlen(buf), ",%02d", sat[i].svid);
-				nsat++;
-			}
-			else
-			{
-#ifdef DEBUG
-				g_debug ("%s: not using sat %2d", __FUNCTION__, sat[i].svid);
-#endif
-			}
-		}
-		/* pad out the rest of the sentence with commas if needed */
-		if (nsat < SAT_MAX_COUNT)
-			for (i = 0; i < (SAT_MAX_COUNT - nsat); i++)
-				strcat(buf, ",");
-
-	} else {
-		strcat(buf, ",,,,,,,,,,,,");
-	}
-
-	sprintf(buf+strlen(buf), ",,,");	// this should be DOP info
-
-	cksum = nmea_cksum(buf);
-	sprintf(nmeastc, "$%s*%02X\r\n", buf, cksum);
-
-	return 0;
-}
-
-/*
-	nmea_gpgsv()
-	NMEA GPS Satellites in View (GSV)
-
-	sat may be NULL (= 0 satellites in view)
-
-	Caveats:
-		- Garmin SNR conversion factor not known
-*/
-int nmea_gpgsv(cpo_sat_data *sat, char *nmeastc) {
-
-	char		buf[256];
-	unsigned char	cksum;
-	int		nsat, i, nout, msgi;
-
-	if (sat == NULL) {
-		sprintf(buf, "GPGSV,1,1,00");
-		cksum = nmea_cksum(buf);
-		sprintf(nmeastc, "$%s*%02X\r\n", buf, cksum);
-		return 0;
-	}
-
-	/* scan through the sat array and count the good sats */
-	nsat = 0;
-	for (i = 0; i < SAT_MAX_COUNT; i++) {
-
-#ifdef DEBUG
-		g_debug ("%s: sat %3d: status = %02x  SNR = %d", __FUNCTION__, sat[i].svid, sat[i].status & SAT_STATUS_MASK, sat[i].snr);
-#endif
-		if (((sat[i].status & SAT_STATUS_MASK) == SAT_STATUS_GOOD) && (sat[i].svid <= MAX_SAT_SVID)) {
-
-// this should not be needed since a sat with bad SNR will not have good status
-//			if (sat[i].snr == SAT_SNR_BAD) {
-//				g_debug ("%s: Sat %02d: bogus SNR = %d", __FUNCTION__, sat[i].svid, sat[i].snr);
-//				sat[i].snr = 0;
-//			}
-
-			nsat++;
-		}
-	}
-
-#ifdef DEBUG
-	g_debug ("%s: nsat = %d", __FUNCTION__, nsat);
-#endif
-
-	if (nsat == 0) {
-		/* build a 'null' GPGSV string */
-		sprintf(buf, "GPGSV,1,1,00");
-		cksum = nmea_cksum(buf);
-		sprintf(nmeastc, "$%s*%02X\r\n", buf, cksum);
-	} else {
-		/* scan the array again and build the GPGSV string(s) of active sats */
-		nout = 0;
-		msgi = 1;
-		nmeastc[0] = 0;
-		sprintf(buf, "GPGSV,%d,%d,%02d", (nsat-1)/4+1, msgi, nsat);
-		for (i = 0; i < SAT_MAX_COUNT; i++) {
-			if (((sat[i].status & SAT_STATUS_MASK) == SAT_STATUS_GOOD) && (sat[i].svid <= MAX_SAT_SVID)) {
-				int snr;
-
-// not needed - see above	if (sat[i].snr == 0)
-//					snr = 0;
-//				else
-					snr = sat[i].snr/100;	/* empirically, this seems to be the correct factor */
-
-				sprintf(buf+strlen(buf), ",%02d,%02d,%03d,%02d",
-					sat[i].svid, sat[i].elev, sat[i].azmth, snr);
-				nout++;
-
-				/* if we have accumulated a group of 4 sats, write out the string */
-				if (nout == 4) {
-					cksum = nmea_cksum(buf);
-					sprintf(nmeastc+strlen(nmeastc), "$%s*%02X\r\n", buf, cksum);
-					msgi++;
-					nout = 0;
-					sprintf(buf, "GPGSV,%d,%d,%02d", (nsat-1)/4+1, msgi, nsat);
-				}
-			}
-		}
-
-		if (nout != 0) {
-			cksum = nmea_cksum(buf);
-			sprintf(nmeastc+strlen(nmeastc), "$%s*%02X\r\n", buf, cksum);
-		}
-	}
-
-	return 0;
-}
-
-unsigned char nmea_cksum(char *str) {
-
-	int i;
-	unsigned char cksum = 0;
-
-	for (i = 0; str[i]; i++) {
-		cksum ^= (unsigned char)str[i];
-	}
-
-	return cksum;
-}
diff --git a/src/nmea-gen.h b/src/nmea-gen.h
deleted file mode 100644
index a8000a7..0000000
--- a/src/nmea-gen.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
-	Garmin protocol to NMEA 0183 converter
-	Copyright (C) 2004 Manuel Kasper <mk@neon1.net>.
-	All rights reserved.
-
-	Input:
-		- D800_Pvt_Data_Type (PID 51)
-		- satellite data record (PID 114)
-
-	Available output sentences:
-		GPGGA, GPRMC, GPGLL, GPGSA, GPGSV
-
-	Known caveats:
-		- DOP (Dilution of Precision) information not available
-		  (Garmin protocol includes EPE only)
-		- DGPS information in GPGGA sentence not returned
-		- speed and course over ground are calculated from the
-		  north/east velocity and may not be accurate
-		- magnetic variation information not available
-		- Garmin 16-bit SNR scale unknown
-
-	---------------------------------------------------------------------------
-	
-	Redistribution and use in source and binary forms, with or without
-	modification, are permitted provided that the following conditions are met:
-	
-	1. Redistributions of source code must retain the above copyright notice,
-	   this list of conditions and the following disclaimer.
-	
-	2. Redistributions in binary form must reproduce the above copyright
-	   notice, this list of conditions and the following disclaimer in the
-	   documentation and/or other materials provided with the distribution.
-	
-	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
-	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-	POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef NMEAGEN_H
-#define NMEAGEN_H
-
-#include "garmin.h"
-
-#define KNOTS_TO_KMH	1.852
-#ifndef G_PI
-#define G_PI			3.14159265358979324
-#endif
-#define rad2deg(x)		((x) * 180.0 / G_PI)
-
-void nmea_getutc(D800_Pvt_Data_Type *pvt, char *utctime, char *utcdate);
-void nmea_fmtlat(double lat, char *latstr);
-void nmea_fmtlon(double lon, char *lonstr);
-int nmea_gpgga(D800_Pvt_Data_Type *pvt, cpo_sat_data *sat, char *nmeastc);
-int nmea_gprmc(D800_Pvt_Data_Type *pvt, char *nmeastc);
-int nmea_gpgll(D800_Pvt_Data_Type *pvt, char *nmeastc);
-int nmea_gpgsa(D800_Pvt_Data_Type *pvt, cpo_sat_data *sat, char *nmeastc);
-int nmea_gpgsv(cpo_sat_data *sat, char *nmeastc);
-unsigned char nmea_cksum(char *str);
-
-#endif