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/**
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* Navit, a modular navigation system.
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* Copyright (C) 2005-2008 Navit Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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Plugin for new Maemo's liblocation API.
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<vehicle source="maemo://any" retry_interval="1"/>
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source cound be on of "any","cwp","acwp","gnss","agnss"
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retry_interval could be one of "1","2","5","10","20","30","60","120" measured in seconds
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*/
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#include <config.h>
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#include <string.h>
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#include <glib.h>
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#include <math.h>
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#include <location/location-gps-device.h>
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#include <location/location-gpsd-control.h>
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#include "debug.h"
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#include "callback.h"
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#include "plugin.h"
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#include "coord.h"
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#include "item.h"
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#include "vehicle.h"
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#include "event.h"
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static struct vehicle_priv {
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LocationGPSDControl *control;
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LocationGPSDevice *device;
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char *source;
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guint retry_interval;
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struct callback_list *cbl;
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struct attr ** attrs;
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int sats; // satellites_in_view
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int sats_used; //satellites_in_user
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int fix_type; //mode
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struct coord_geo geo; //lattigute&longittude
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double speed; //speed:)
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double direction; //track
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double height; //altitude
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double hdop; //eph
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time_t fix_time; //time
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char fixiso8601[128];
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};
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static void vehicle_maemo_callback(LocationGPSDevice *device, gpointer user_data) {
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struct vehicle_priv *priv=(struct vehicle_priv*)user_data;
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priv->sats=device->satellites_in_view;
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priv->sats_used=device->satellites_in_use;
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callback_list_call_attr_0(priv->cbl, attr_position_sats);
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dbg(1,"Got update with %u/%u satellites\n",priv->sats_used,priv->sats);
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if (device->fix) {
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switch(device->fix->mode) {
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case LOCATION_GPS_DEVICE_MODE_NOT_SEEN:
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case LOCATION_GPS_DEVICE_MODE_NO_FIX:
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priv->fix_type=0;
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break;
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case LOCATION_GPS_DEVICE_MODE_2D:
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case LOCATION_GPS_DEVICE_MODE_3D:
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priv->fix_type=1;
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break;
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}
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if (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET) {
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priv->geo.lat=device->fix->latitude;
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priv->geo.lng=device->fix->longitude;
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priv->hdop=device->fix->eph/100;
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callback_list_call_attr_0(priv->cbl, attr_position_coord_geo);
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dbg(1,"Position: %f %f with error %f meters\n",priv->geo.lat,priv->geo.lng,priv->hdop);
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}
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if (device->fix->fields & LOCATION_GPS_DEVICE_SPEED_SET) {
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priv->speed=device->fix->speed;
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callback_list_call_attr_0(priv->cbl, attr_position_speed);
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dbg(1,"Speed: %f\n ",priv->speed);
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}
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if (device->fix->fields & LOCATION_GPS_DEVICE_TRACK_SET) {
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priv->direction=device->fix->track;
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dbg(1,"Direction: %f\n",priv->direction);
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}
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if (device->fix->fields & LOCATION_GPS_DEVICE_TIME_SET) {
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priv->fix_time=device->fix->time;
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dbg(1,"Time: %f\n",priv->fix_time);
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}
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if (device->fix->fields & LOCATION_GPS_DEVICE_ALTITUDE_SET) {
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priv->height=device->fix->altitude;
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dbg(1,"Elevation: %f\n",priv->height);
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}
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}
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return;
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}
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static void vehicle_maemo_error(LocationGPSDControl *control, LocationGPSDControlError error, gpointer user_data)
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{
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switch (error) {
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case LOCATION_ERROR_USER_REJECTED_DIALOG:
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dbg(0,"User didn't enable requested methods\n");
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break;
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case LOCATION_ERROR_USER_REJECTED_SETTINGS:
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dbg(0,"User changed settings, which disabled location\n");
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break;
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case LOCATION_ERROR_BT_GPS_NOT_AVAILABLE:
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dbg(0,"Problems with BT GPS\n");
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break;
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case LOCATION_ERROR_METHOD_NOT_ALLOWED_IN_OFFLINE_MODE:
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dbg(0,"Requested method is not allowed in offline mode\n");
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break;
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case LOCATION_ERROR_SYSTEM:
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dbg(0,"System error\n");
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break;
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}
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}
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/**
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* Instantiate liblocation objects
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*/
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static void
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vehicle_maemo_open(struct vehicle_priv *priv)
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{
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priv->control = location_gpsd_control_get_default();
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priv->device = g_object_new(LOCATION_TYPE_GPS_DEVICE, NULL);
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if (!strcasecmp(priv->source+8,"cwp")) {
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g_object_set(G_OBJECT(priv->control), "preferred-method", LOCATION_METHOD_CWP, NULL);
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dbg(1,"Method set: CWP\n");
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} else if (!strcasecmp(priv->source+8,"acwp")) {
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g_object_set(G_OBJECT(priv->control), "preferred-method", LOCATION_METHOD_ACWP, NULL);
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dbg(1,"Method set: ACWP\n");
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} else if (!strcasecmp(priv->source+8,"gnss")) {
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g_object_set(G_OBJECT(priv->control), "preferred-method", LOCATION_METHOD_GNSS, NULL);
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dbg(1,"Method set: GNSS\n");
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} else if (!strcasecmp(priv->source+8,"agnss")) {
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g_object_set(G_OBJECT(priv->control), "preferred-method", LOCATION_METHOD_AGNSS, NULL);
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dbg(1,"Method set: AGNSS\n");
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} else {
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g_object_set(G_OBJECT(priv->control), "preferred-method", LOCATION_METHOD_USER_SELECTED, NULL);
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dbg(1,"Method set: ANY\n");
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}
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switch (priv->retry_interval) {
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case 2:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_2S, NULL);
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dbg(1,"Interval set: 2s\n");
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break;
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case 5:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_5S, NULL);
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dbg(1,"Interval set: 5s\n");
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break;
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case 10:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_10S, NULL);
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dbg(1,"Interval set: 10s\n");
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break;
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case 20:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_20S, NULL);
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dbg(1,"Interval set: 20s\n");
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break;
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case 30:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_30S, NULL);
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dbg(1,"Interval set: 30s\n");
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break;
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case 60:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_60S, NULL);
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dbg(1,"Interval set: 60s\n");
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break;
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case 120:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_120S, NULL);
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dbg(1,"Interval set: 120s\n");
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break;
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case 1:
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default:
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g_object_set(G_OBJECT(priv->control), "preferred-interval", LOCATION_INTERVAL_1S, NULL);
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dbg(1,"Interval set: 1s\n");
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break;
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}
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g_signal_connect(priv->device, "changed", G_CALLBACK(vehicle_maemo_callback), priv);
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g_signal_connect(priv->control, "error-verbose", G_CALLBACK(vehicle_maemo_error), priv);
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location_gpsd_control_start(priv->control);
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return;
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}
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static void
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vehicle_maemo_destroy(struct vehicle_priv *priv)
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{
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location_gpsd_control_stop(priv->control);
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g_object_unref(priv->device);
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g_object_unref(priv->control);
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return;
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}
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static int
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vehicle_maemo_position_attr_get(struct vehicle_priv *priv,
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enum attr_type type, struct attr *attr)
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{
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struct attr * active=NULL;
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switch (type) {
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case attr_position_fix_type:
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dbg(1,"Attr requested: position_fix_type\n");
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attr->u.num = priv->fix_type;
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break;
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case attr_position_height:
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dbg(1,"Attr requested: position_height\n");
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attr->u.numd = &priv->height;
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break;
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case attr_position_speed:
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dbg(1,"Attr requested: position_speed\n");
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attr->u.numd = &priv->speed;
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break;
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case attr_position_direction:
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dbg(1,"Attr requested: position_direction\n");
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attr->u.numd = &priv->direction;
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break;
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case attr_position_hdop:
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dbg(1,"Attr requested: position_hdop\n");
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attr->u.numd = &priv->hdop;
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break;
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case attr_position_sats:
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dbg(1,"Attr requested: position_sats_signal\n");
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attr->u.num = priv->sats;
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break;
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case attr_position_sats_used:
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dbg(1,"Attr requested: position_sats_used\n");
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attr->u.num = priv->sats_used;
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break;
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case attr_position_coord_geo:
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dbg(1,"Attr requested: position_coord_geo\n");
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attr->u.coord_geo = &priv->geo;
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break;
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case attr_position_time_iso8601:
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{
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struct tm tm;
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dbg(1,"Attr requested: position_time_iso8601\n");
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if (!priv->fix_time)
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return 0;
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if (gmtime_r(&priv->fix_time, &tm)) {
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strftime(priv->fixiso8601, sizeof(priv->fixiso8601),
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"%Y-%m-%dT%TZ", &tm);
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attr->u.str=priv->fixiso8601;
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} else
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return 0;
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}
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break;
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case attr_active:
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dbg(1,"Attr requested: position_active\n");
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active = attr_search(priv->attrs,NULL,attr_active);
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if(active != NULL) {
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attr->u.num=active->u.num;
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return 1;
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} else
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return 0;
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break;
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default:
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return 0;
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}
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attr->type = type;
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return 1;
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}
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struct vehicle_methods vehicle_maemo_methods = {
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vehicle_maemo_destroy,
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vehicle_maemo_position_attr_get,
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};
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static struct vehicle_priv *
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vehicle_maemo_new_maemo(struct vehicle_methods
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*meth, struct callback_list
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*cbl, struct attr **attrs)
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{
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struct vehicle_priv *ret;
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struct attr *source, *retry_int;
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dbg(1, "enter\n");
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source = attr_search(attrs, NULL, attr_source);
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ret = g_new0(struct vehicle_priv, 1);
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ret->source = g_strdup(source->u.str);
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retry_int = attr_search(attrs, NULL, attr_retry_interval);
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if (retry_int) {
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ret->retry_interval = retry_int->u.num;
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if (ret->retry_interval !=1 && ret->retry_interval !=2 && ret->retry_interval !=5 && ret->retry_interval !=10 && ret->retry_interval !=20 && ret->retry_interval !=30 && ret->retry_interval !=60 && ret->retry_interval !=120 ) {
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dbg(0, "Retry interval %d invalid, setting to 1\n", ret->retry_interval,1);
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ret->retry_interval = 1;
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}
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} else {
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ret->retry_interval = 1;
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}
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dbg(1,"source: %s, interval: %u\n",ret->source,ret->retry_interval);
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ret->cbl = cbl;
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*meth = vehicle_maemo_methods;
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ret->attrs = attrs;
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vehicle_maemo_open(ret);
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return ret;
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}
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void
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plugin_init(void)
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{
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dbg(1, "enter\n");
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plugin_register_vehicle_type("maemo", vehicle_maemo_new_maemo);
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}
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