Mer/Documentation/N810 GPS - Revision history

amigadave: {{Mer}}

2010-09-22T09:38:52Z

← Older revision		Revision as of 09:38, 22 September 2010
Line 1:		Line 1:
		+	{{Mer}}
		+
	== Notes ==		== Notes ==
	*These directions are confirmed to work on Mer 0.12.		*These directions are confirmed to work on Mer 0.12.
Line 252:		Line 254:
	You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).		You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).

-	~~[[Category:Mer]]~~
	[[Category:N8x0]]		[[Category:N8x0]]
	[[Category:GPS]]		[[Category:GPS]]

amigadave: categorise

2010-02-11T15:11:01Z

categorise

← Older revision		Revision as of 15:11, 11 February 2010
Line 251:		Line 251:

	You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).		You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).
		+
		+	[[Category:Mer]]
		+	[[Category:N8x0]]
		+	[[Category:GPS]]

208.42.141.209: Minor corrections

2009-05-22T18:48:44Z

Minor corrections

← Older revision		Revision as of 18:48, 22 May 2009
Line 222:		Line 222:

	Compile them:		Compile them:
		+	cd /path/to/source/files/
	gcc -shared -fPIC -ldl preload.c preload_init.c -o libgps5300faker.so		gcc -shared -fPIC -ldl preload.c preload_init.c -o libgps5300faker.so

-	Put libgps5300faker.so in /usr/lib (~~Not posted anywhere yet~~):	+	Put libgps5300faker.so in /usr/lib (assuming you're still in the same directory):
-	cp ~~/path/to/~~libgps5300faker.so /usr/lib	+	cp libgps5300faker.so /usr/lib

	=== Step 7: Reboot ===		=== Step 7: Reboot ===

208.42.141.209: Added libgps5300faker.so code/directions

2009-05-22T18:46:48Z

Added libgps5300faker.so code/directions

← Older revision		Revision as of 18:46, 22 May 2009
Line 102:		Line 102:

	=== Step 6: Install libgps5300faker.so ===		=== Step 6: Install libgps5300faker.so ===
		+	First of all, install the necessary packages (they may be removed later, this may be an excessive list or an incomplete list. Basically keep installing stuff until it stops complaining):
		+	apt-get install build-essential m4 automake autoconf
		+
		+	Make the following files somewhere (they may be removed later):
		+
		+	preload_init.c
		+	/*
		+	* Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
		+	* Licensed for redistribution as-is;
		+	* contact me if you want something more permissive
		+	*/
		+
		+	#define _GNU_SOURCE
		+
		+	#include <dlfcn.h>
		+	#include <stdlib.h>
		+	#include <string.h>
		+	#include <sys/types.h>
		+	#include <sys/socket.h>
		+	#include <sys/un.h>
		+	#include <unistd.h>
		+
		+	static struct sockaddr_un ctrl_sau = {
		+	AF_UNIX,
		+	"/var/lib/gps/gps_driver_ctrl\0",
		+	};
		+	#define CTRL_SCK_PATH ctrl_sau.sun_path
		+
		+	static int ctrl_sck = -1;
		+
		+	typedef int (bind_t)(int, const struct sockaddr, socklen_t);
		+
		+	int
		+	bind(int sockfd, const struct sockaddr*addr, socklen_t addrlen) {
		+	static bind_t real = NULL;
		+	if (!real)
		+	real = dlsym(RTLD_NEXT, "bind");
		+
		+	int rv = real(sockfd, addr, addrlen);
		+
		+	if (
		+	addr &&
		+	addr->sa_family == AF_FILE &&
		+	!strcmp(CTRL_SCK_PATH,
		+	((struct sockaddr_un*)addr)->sun_path
		+	) &&
		+	getenv("GPS5300_SELFINIT") &&
		+	1
		+	)
		+	ctrl_sck = sockfd;
		+
		+	return rv;
		+	}
		+
		+	typedef int (*listen_t)(int, int);
		+
		+	int
		+	listen(int sockfd, int backlog) {
		+	static listen_t real = NULL;
		+	if (!real)
		+	real = dlsym(RTLD_NEXT, "listen");
		+
		+	int rv = real(sockfd, backlog);
		+
		+	if (sockfd == ctrl_sck && !fork())
		+	{
		+	// Child process :)
		+
		+	int sck;
		+	char initcmd[] = "P 3\n";
		+
		+	sck = socket(PF_FILE, SOCK_STREAM, 0);
		+	if (sck < 0)
		+	exit(1);
		+	if (connect(sck, &ctrl_sau, sizeof ctrl_sau))
		+	exit(1);
		+	write(sck, initcmd, sizeof initcmd);
		+	close(sck);
		+
		+	exit(0);
		+	}
		+
		+	return rv;
		+	}
		+
		+	preload.c:
		+	/*
		+	* Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
		+	* Licensed for redistribution as-is;
		+	* contact me if you want something more permissive
		+	*/
		+
		+	#define _GNU_SOURCE
		+
		+	#include <dlfcn.h>
		+	#include <pwd.h>
		+	#include <stdlib.h>
		+	#include <string.h>
		+	#include <sys/types.h>
		+
		+	typedef struct passwd* (getpwnam_t)(const char);
		+
		+	struct passwd *
		+	getpwnam(const char *name) {
		+	static getpwnam_t real = NULL;
		+	if (!real)
		+	real = dlsym(RTLD_NEXT, "getpwnam");
		+
		+	if (!strcmp(name, "user"))
		+	{
		+	const char*username = getenv("GPS5300_USER");
		+	if (username)
		+	name = username;
		+	}
		+
		+	return real(name);
		+	}
		+
		+
		+	Compile them:
		+	gcc -shared -fPIC -ldl preload.c preload_init.c -o libgps5300faker.so
		+
	Put libgps5300faker.so in /usr/lib (Not posted anywhere yet):		Put libgps5300faker.so in /usr/lib (Not posted anywhere yet):
	cp /path/to/libgps5300faker.so /usr/lib		cp /path/to/libgps5300faker.so /usr/lib

208.42.141.209: /* Directions */

2009-05-22T18:20:33Z

Directions

← Older revision		Revision as of 18:20, 22 May 2009
Line 9:		Line 9:

	== Directions ==		== Directions ==
-	1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):	+	=== Step 1: Install the necessary files ===
		+	Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
	libsupld1		libsupld1
	osso-gpsd		osso-gpsd
Line 16:		Line 17:
	gpsdriver		gpsdriver

-	2. Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.	+	=== Step 2: Tweak /etc/init.d/libgpsbt ===
		+	Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

-	3. Run:	+	=== Step 3: Change ownership ===
		+	Run:
	chown -R YOURUSERNAME:users /var/lib/gps		chown -R YOURUSERNAME:users /var/lib/gps

-	4. Make the following files:	+	=== Step 4: Make the necessary files ===
		+	Make the following files:

	/etc/default/gps5300driver.conf:		/etc/default/gps5300driver.conf:
Line 93:		Line 97:
	esac		esac

-	5~~. Run~~	+	=== Step 5: Copy gpsdriver ===
		+	Make a copy of gpsdriver to prevent confusion
	cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver		cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver

-	6. Put libgps5300faker.so in /usr/lib (Not posted anywhere yet):	+	=== Step 6: Install libgps5300faker.so ===
		+	Put libgps5300faker.so in /usr/lib (Not posted anywhere yet):
	cp /path/to/libgps5300faker.so /usr/lib		cp /path/to/libgps5300faker.so /usr/lib

-	7. Reboot:	+	=== Step 7: Reboot ===
		+	Reboot:
	reboot		reboot

-	8. Get ready to use the GPS:	+	=== Step 8: Prepare to use the GPS ===
		+	Get ready to use the GPS:
	/etc/init.d/libgpsbt restart		/etc/init.d/libgpsbt restart
	/etc/init.d/gpsdriver restart		/etc/init.d/gpsdriver restart
	/etc/init.d/gps5300driver restart		/etc/init.d/gps5300driver restart

-	9. Start GPSD:	+	=== Step 9: Start GPSD ===
		+	Start GPSD:
	gpsd -n -N -D2 /dev/pgps		gpsd -n -N -D2 /dev/pgps

208.42.141.209: More formatting

2009-05-22T18:14:08Z

More formatting

← Older revision		Revision as of 18:14, 22 May 2009
Line 1:		Line 1:
-	These directions are confirmed to work on Mer 0.12.	+	== Notes ==
		+	*These directions are confirmed to work on Mer 0.12.

-	All commands should be run as root.	+	*All commands should be run as root.

-	All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.	+	*All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

-	The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.	+	*The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.
-		+
-	~~The formatting is completely messed up, so if you care to look at directions in any usable way, click the edit link~~.	+

		+	== Directions ==
	1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):		1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
	libsupld1		libsupld1
Line 118:		Line 118:
	gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54		gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

-	You have a lock and are ready to use your GPS.	+	You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).

208.42.141.209: Many formatting fixes

2009-05-22T18:09:27Z

Many formatting fixes

Show changes

208.42.141.209 at 19:11, 19 May 2009

2009-05-19T19:11:53Z

← Older revision		Revision as of 19:11, 19 May 2009
Line 6:		Line 6:

	The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.		The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.
		+
		+	The formatting is completely messed up, so if you care to look at directions in any usable way, click the edit link.

	1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):		1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
Line 99:		Line 101:
	5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"		5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"

-	6. Put libgps5300faker.so in /usr/lib (~~HOSTING~~)	+	6. Put libgps5300faker.so in /usr/lib (Not posted anywhere yet)

	7. Reboot		7. Reboot

208.42.141.209 at 19:00, 19 May 2009

2009-05-19T19:00:56Z

← Older revision		Revision as of 19:00, 19 May 2009
Line 21:		Line 21:

	/etc/default/gps5300driver.conf		/etc/default/gps5300driver.conf
-	#=================CUT====================	+	=================CUT====================

	# /etc/default/gps5300driver.conf		# /etc/default/gps5300driver.conf
Line 31:		Line 31:
	GPS5300_SELFINIT=true		GPS5300_SELFINIT=true

-	#=================CUT====================	+	=================CUT====================

	/etc/init.d/gps5300driver		/etc/init.d/gps5300driver
-	#=================CUT====================	+	=================CUT====================

	#!/bin/bash		#!/bin/bash
Line 95:		Line 95:
	esac		esac

-	#=================CUT====================	+	=================CUT====================

	5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"		5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"

208.42.141.209: New page: These directions are confirmed to work on Mer 0.12. All commands should be run as root. All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involvi...

2009-05-19T18:54:29Z

New page: These directions are confirmed to work on Mer 0.12. All commands should be run as root. All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involvi...

New page

These directions are confirmed to work on Mer 0.12.

All commands should be run as root.

All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

2. Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

3. Run: chown -R YOURUSERNAME:users /var/lib/gps

4. Make the following files:

/etc/default/gps5300driver.conf
#=================CUT====================

# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

#=================CUT====================

/etc/init.d/gps5300driver
#=================CUT====================

#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

#=================CUT====================

5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"

6. Put libgps5300faker.so in /usr/lib (HOSTING)

7. Reboot

8. Run:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

9. Run: "gpsd -n -N -D2 /dev/pgps"

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You've got a lock and are ready to use your GPS.