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Maemo version detection
1 | harbaum | 1 | /* |
2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. | ||
3 | * | ||
4 | * This file is part of OSM2Go. | ||
5 | * | ||
6 | * OSM2Go is free software: you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation, either version 3 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * OSM2Go is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with OSM2Go. If not, see <http://www.gnu.org/licenses/>. | ||
18 | */ | ||
19 | |||
20 | #include <stdio.h> | ||
21 | #include <string.h> | ||
22 | #include <math.h> | ||
23 | |||
24 | #include "appdata.h" | ||
25 | |||
26 | harbaum | 118 | #ifdef ENABLE_LIBLOCATION |
27 | |||
28 | #include <location/location-gps-device.h> | ||
29 | |||
30 | pos_t *gps_get_pos(appdata_t *appdata) { | ||
31 | gps_state_t *gps_state = appdata->gps_state; | ||
32 | static pos_t retval; | ||
33 | |||
34 | if(!gps_state->fix) | ||
35 | return NULL; | ||
36 | |||
37 | retval.lat = gps_state->latitude; | ||
38 | retval.lon = gps_state->longitude; | ||
39 | |||
40 | return &retval; | ||
41 | } | ||
42 | |||
43 | static void | ||
44 | location_changed(LocationGPSDevice *device, gps_state_t *gps_state) { | ||
45 | |||
46 | gps_state->fix = | ||
47 | (device->fix->fields & LOCATION_GPS_DEVICE_LATLONG_SET); | ||
48 | |||
49 | if(gps_state->fix) { | ||
50 | gps_state->latitude = device->fix->latitude; | ||
51 | gps_state->longitude = device->fix->longitude; | ||
52 | } | ||
53 | } | ||
54 | |||
55 | void gps_init(appdata_t *appdata) { | ||
56 | gps_state_t *gps_state = appdata->gps_state = g_new0(gps_state_t, 1); | ||
57 | |||
58 | printf("GPS init: Using liblocation\n"); | ||
59 | |||
60 | gps_state->device = g_object_new(LOCATION_TYPE_GPS_DEVICE, NULL); | ||
61 | if(!gps_state->device) { | ||
62 | printf("Unable to connect to liblocation\n"); | ||
63 | return; | ||
64 | } | ||
65 | |||
66 | gps_state->idd_changed = | ||
67 | g_signal_connect(gps_state->device, "changed", | ||
68 | G_CALLBACK(location_changed), gps_state); | ||
69 | |||
70 | harbaum | 124 | #if MAEMO_VERSION_MAJOR < 5 |
71 | harbaum | 118 | gps_state->control = location_gpsd_control_get_default(); |
72 | if(gps_state->control->can_control) { | ||
73 | printf("Having control over GPSD, starting it\n"); | ||
74 | location_gpsd_control_start(gps_state->control); | ||
75 | } | ||
76 | harbaum | 124 | #endif |
77 | harbaum | 118 | } |
78 | |||
79 | void gps_release(appdata_t *appdata) { | ||
80 | gps_state_t *gps_state = appdata->gps_state; | ||
81 | |||
82 | if(!gps_state->device) return; | ||
83 | |||
84 | harbaum | 124 | #if MAEMO_VERSION_MAJOR < 5 |
85 | harbaum | 118 | /* Disconnect signal */ |
86 | if(gps_state->control->can_control) { | ||
87 | printf("Having control over GPSD, stopping it\n"); | ||
88 | location_gpsd_control_stop(gps_state->control); | ||
89 | } | ||
90 | harbaum | 124 | #endif |
91 | harbaum | 118 | |
92 | g_signal_handler_disconnect(gps_state->device, gps_state->idd_changed); | ||
93 | |||
94 | g_free(appdata->gps_state); | ||
95 | appdata->gps_state = NULL; | ||
96 | } | ||
97 | |||
98 | #else // ENABLE_LIBLOCATION | ||
99 | |||
100 | harbaum | 112 | #ifdef ENABLE_GPSBT |
101 | harbaum | 1 | #include <gpsbt.h> |
102 | #include <gpsmgr.h> | ||
103 | #include <errno.h> | ||
104 | #endif | ||
105 | |||
106 | /* maybe user configurable later on ... */ | ||
107 | #define GPSD_HOST "127.0.0.1" | ||
108 | #define GPSD_PORT 2947 | ||
109 | |||
110 | pos_t *gps_get_pos(appdata_t *appdata) { | ||
111 | static pos_t retval; | ||
112 | |||
113 | retval.lat = NAN; | ||
114 | |||
115 | g_mutex_lock(appdata->gps_state->mutex); | ||
116 | if(appdata->gps_state->gpsdata.set & STATUS_SET) | ||
117 | if(appdata->gps_state->gpsdata.status != STATUS_NO_FIX) | ||
118 | if(appdata->gps_state->gpsdata.set & LATLON_SET) | ||
119 | retval = appdata->gps_state->gpsdata.fix.pos; | ||
120 | |||
121 | g_mutex_unlock(appdata->gps_state->mutex); | ||
122 | |||
123 | if(isnan(retval.lat)) | ||
124 | return NULL; | ||
125 | |||
126 | return &retval; | ||
127 | } | ||
128 | |||
129 | static int gps_connect(gps_state_t *gps_state) { | ||
130 | GnomeVFSResult vfs_result; | ||
131 | harbaum | 112 | #ifdef ENABLE_GPSBT |
132 | harbaum | 1 | char errstr[256] = ""; |
133 | |||
134 | /* We need to start gpsd (via gpsbt) first. */ | ||
135 | memset(&gps_state->context, 0, sizeof(gpsbt_t)); | ||
136 | errno = 0; | ||
137 | |||
138 | if(gpsbt_start(NULL, 0, 0, 0, errstr, sizeof(errstr), | ||
139 | 0, &gps_state->context) < 0) { | ||
140 | printf("Error connecting to GPS receiver: (%d) %s (%s)\n", | ||
141 | errno, strerror(errno), errstr); | ||
142 | } | ||
143 | #endif | ||
144 | |||
145 | /************** from here down pure gnome/gtk/gpsd ********************/ | ||
146 | |||
147 | /* try to connect to gpsd */ | ||
148 | /* Create a socket to interact with GPSD. */ | ||
149 | |||
150 | int retries = 5; | ||
151 | while(retries && | ||
152 | (GNOME_VFS_OK != (vfs_result = gnome_vfs_inet_connection_create( | ||
153 | &gps_state->iconn, GPSD_HOST, GPSD_PORT, NULL)))) { | ||
154 | printf("Error creating connection to GPSD, retrying ...\n"); | ||
155 | |||
156 | retries--; | ||
157 | sleep(1); | ||
158 | } | ||
159 | |||
160 | if(!retries) { | ||
161 | printf("Finally failed ...\n"); | ||
162 | return -1; | ||
163 | } | ||
164 | |||
165 | retries = 5; | ||
166 | while(retries && ((gps_state->socket = | ||
167 | gnome_vfs_inet_connection_to_socket(gps_state->iconn)) == NULL)) { | ||
168 | printf("Error creating connecting GPSD socket, retrying ...\n"); | ||
169 | |||
170 | retries--; | ||
171 | sleep(1); | ||
172 | } | ||
173 | |||
174 | if(!retries) { | ||
175 | printf("Finally failed ...\n"); | ||
176 | gnome_vfs_inet_connection_destroy(gps_state->iconn, NULL); | ||
177 | return -1; | ||
178 | } | ||
179 | |||
180 | GTimeVal timeout = { 10, 0 }; | ||
181 | if(GNOME_VFS_OK != (vfs_result = gnome_vfs_socket_set_timeout( | ||
182 | gps_state->socket, &timeout, NULL))) { | ||
183 | printf("Error setting GPSD timeout\n"); | ||
184 | gnome_vfs_inet_connection_destroy(gps_state->iconn, NULL); | ||
185 | return -1; | ||
186 | } | ||
187 | |||
188 | printf("GPSD connected ...\n"); | ||
189 | |||
190 | return 0; | ||
191 | } | ||
192 | |||
193 | void gps_clear_fix(struct gps_fix_t *fixp) { | ||
194 | fixp->mode = MODE_NOT_SEEN; | ||
195 | fixp->pos.lat = fixp->pos.lon = NAN; | ||
196 | fixp->eph = NAN; | ||
197 | } | ||
198 | |||
199 | /* unpack a daemon response into a status structure */ | ||
200 | static void gps_unpack(char *buf, struct gps_data_t *gpsdata) { | ||
201 | char *ns, *sp, *tp; | ||
202 | |||
203 | for(ns = buf; ns; ns = strstr(ns+1, "GPSD")) { | ||
204 | if(strncmp(ns, "GPSD", 4) == 0) { | ||
205 | /* the following should execute each time we have a good next sp */ | ||
206 | for (sp = ns + 5; *sp != '\0'; sp = tp+1) { | ||
207 | tp = sp + strcspn(sp, ",\r\n"); | ||
208 | if (*tp == '\0') tp--; | ||
209 | else *tp = '\0'; | ||
210 | |||
211 | switch (*sp) { | ||
212 | case 'O': | ||
213 | if (sp[2] == '?') { | ||
214 | gpsdata->set = | ||
215 | (gpsdata->set & SATELLITE_SET) | // fix for below | ||
216 | MODE_SET | STATUS_SET; // this clears sat info?? | ||
217 | gpsdata->status = STATUS_NO_FIX; | ||
218 | gps_clear_fix(&gpsdata->fix); | ||
219 | } else { | ||
220 | struct gps_fix_t nf; | ||
221 | char tag[MAXTAGLEN+1], alt[20], eph[20], lat[20], lon[20], mode[2]; | ||
222 | int st = sscanf(sp+2, | ||
223 | "%8s %*s %*s %19s %19s " | ||
224 | "%19s %19s %*s %*s %*s %*s " | ||
225 | "%*s %*s %*s %1s", | ||
226 | tag, lat, lon, | ||
227 | alt, eph, | ||
228 | mode); | ||
229 | if (st >= 5) { | ||
230 | #define DEFAULT(val) (val[0] == '?') ? NAN : g_ascii_strtod(val, NULL) | ||
231 | nf.pos.lat = DEFAULT(lat); | ||
232 | nf.pos.lon = DEFAULT(lon); | ||
233 | nf.eph = DEFAULT(eph); | ||
234 | #undef DEFAULT | ||
235 | if (st >= 6) | ||
236 | nf.mode = (mode[0] == '?') ? MODE_NOT_SEEN : atoi(mode); | ||
237 | else | ||
238 | nf.mode = (alt[0] == '?') ? MODE_2D : MODE_3D; | ||
239 | gpsdata->fix = nf; | ||
240 | gpsdata->set |= LATLON_SET|MODE_SET; | ||
241 | gpsdata->status = STATUS_FIX; | ||
242 | gpsdata->set |= STATUS_SET; | ||
243 | } | ||
244 | } | ||
245 | break; | ||
246 | } | ||
247 | } | ||
248 | } | ||
249 | } | ||
250 | } | ||
251 | |||
252 | gpointer gps_thread(gpointer data) { | ||
253 | GnomeVFSFileSize bytes_read; | ||
254 | GnomeVFSResult vfs_result; | ||
255 | char str[512]; | ||
256 | appdata_t *appdata = (appdata_t*)data; | ||
257 | |||
258 | const char *msg = "o\r\n"; /* pos request */ | ||
259 | |||
260 | appdata->gps_state->gpsdata.set = 0; | ||
261 | |||
262 | gboolean connected = FALSE; | ||
263 | |||
264 | while(1) { | ||
265 | if(appdata->gps_enabled) { | ||
266 | if(!connected) { | ||
267 | printf("trying to connect\n"); | ||
268 | |||
269 | if(gps_connect(appdata->gps_state) < 0) | ||
270 | sleep(10); | ||
271 | else | ||
272 | connected = TRUE; | ||
273 | } else { | ||
274 | if(GNOME_VFS_OK == | ||
275 | (vfs_result = gnome_vfs_socket_write(appdata->gps_state->socket, | ||
276 | msg, strlen(msg)+1, &bytes_read, NULL))) { | ||
277 | |||
278 | /* update every second, wait here to make sure a complete */ | ||
279 | /* reply is received */ | ||
280 | sleep(1); | ||
281 | |||
282 | if(bytes_read == (strlen(msg)+1)) { | ||
283 | vfs_result = gnome_vfs_socket_read(appdata->gps_state->socket, | ||
284 | str, sizeof(str)-1, &bytes_read, NULL); | ||
285 | if(vfs_result == GNOME_VFS_OK) { | ||
286 | str[bytes_read] = 0; | ||
287 | |||
288 | printf("msg: %s (%d)\n", str, strlen(str)); | ||
289 | |||
290 | g_mutex_lock(appdata->gps_state->mutex); | ||
291 | |||
292 | appdata->gps_state->gpsdata.set &= | ||
293 | ~(LATLON_SET|MODE_SET|STATUS_SET); | ||
294 | |||
295 | gps_unpack(str, &appdata->gps_state->gpsdata); | ||
296 | g_mutex_unlock(appdata->gps_state->mutex); | ||
297 | } | ||
298 | } | ||
299 | } | ||
300 | } | ||
301 | } else { | ||
302 | if(connected) { | ||
303 | printf("stopping GPS connection due to user request\n"); | ||
304 | gnome_vfs_inet_connection_destroy(appdata->gps_state->iconn, NULL); | ||
305 | |||
306 | harbaum | 112 | #ifdef ENABLE_GPSBT |
307 | harbaum | 1 | gpsbt_stop(&appdata->gps_state->context); |
308 | #endif | ||
309 | connected = FALSE; | ||
310 | } else | ||
311 | sleep(1); | ||
312 | } | ||
313 | } | ||
314 | |||
315 | printf("GPS thread ended???\n"); | ||
316 | return NULL; | ||
317 | } | ||
318 | |||
319 | void gps_init(appdata_t *appdata) { | ||
320 | appdata->gps_state = g_new0(gps_state_t, 1); | ||
321 | |||
322 | harbaum | 118 | printf("GPS init: Using gpsd\n"); |
323 | |||
324 | harbaum | 1 | /* start a new thread to listen to gpsd */ |
325 | appdata->gps_state->mutex = g_mutex_new(); | ||
326 | appdata->gps_state->thread_p = | ||
327 | g_thread_create(gps_thread, appdata, FALSE, NULL); | ||
328 | } | ||
329 | |||
330 | void gps_release(appdata_t *appdata) { | ||
331 | harbaum | 112 | #ifdef ENABLE_GPSBT |
332 | harbaum | 1 | gpsbt_stop(&appdata->gps_state->context); |
333 | #endif | ||
334 | g_free(appdata->gps_state); | ||
335 | harbaum | 118 | appdata->gps_state = NULL; |
336 | harbaum | 1 | } |
337 | harbaum | 118 | |
338 | #endif // ENABLE_LIBLOCATION |