5 * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program 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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
32 #define CONNMAN_API_SUBJECT_TO_CHANGE
33 #include <connman/plugin.h>
34 #include <connman/device.h>
35 #include <connman/inet.h>
36 #include <connman/log.h>
39 #include <WiMaxAPIEx.h>
44 * Connman plugin interface
46 * This part deals with the connman internals
49 /* WiMAX network driver probe/remove, nops */
50 static int iwmx_cm_network_probe(struct connman_network *nw)
55 static void iwmx_cm_network_remove(struct connman_network *nw)
60 * Called by connman when it wants us to tell the device to connect to
61 * the network @network_el; the device is @network_el->parent.
63 * We do a synchronous call to start the connection; the logic
64 * attached to the status change callback will update the connman
65 * internals once the change happens.
67 static int iwmx_cm_network_connect(struct connman_network *nw)
70 struct wmxsdk *wmxsdk;
71 const char *station_name = connman_network_get_identifier(nw);
73 wmxsdk = connman_device_get_data(connman_network_get_device(nw));
74 result = iwmx_sdk_connect(wmxsdk, nw);
75 DBG("(nw %p [%s] wmxsdk %p) = %d\n", nw, station_name, wmxsdk, result);
80 * Called by connman to have the device @nw->parent
81 * disconnected from @nw.
83 * We do a synchronous call to start the disconnection; the logic
84 * attached to the status change callback will update the connman
85 * internals once the change happens.
87 static int iwmx_cm_network_disconnect(struct connman_network *nw)
90 struct wmxsdk *wmxsdk;
91 const char *station_name = connman_network_get_identifier(nw);
93 wmxsdk = connman_device_get_data(connman_network_get_device(nw));
94 result = iwmx_sdk_disconnect(wmxsdk);
95 DBG("(nw %p [%s] wmxsdk %p) = %d\n", nw, station_name, wmxsdk, result);
100 * "Driver" for the networks detected by a device.
102 static struct connman_network_driver iwmx_cm_network_driver = {
104 .type = CONNMAN_NETWORK_TYPE_WIMAX,
105 .probe = iwmx_cm_network_probe,
106 .remove = iwmx_cm_network_remove,
107 .connect = iwmx_cm_network_connect,
108 .disconnect = iwmx_cm_network_disconnect,
112 * A (maybe) new network is available, create/update its data
114 * If the network is new, we create and register a new element; if it
115 * is not, we reuse the one in the list.
118 * wmxsdk->network_mutex has to be locked
120 struct connman_network *__iwmx_cm_network_available(
121 struct wmxsdk *wmxsdk, const char *station_name,
122 const void *sdk_nspname, size_t sdk_nspname_size,
125 struct connman_network *nw = NULL;
126 struct connman_device *dev = wmxsdk->dev;
127 char group[3 * strlen(station_name) + 1];
130 nw = connman_device_get_network(dev, station_name);
132 DBG("new network %s", station_name);
133 nw = connman_network_create(station_name,
134 CONNMAN_NETWORK_TYPE_WIMAX);
135 connman_network_set_index(nw, connman_device_get_index(dev));
136 connman_network_set_name(nw, station_name);
137 connman_network_set_blob(nw, "WiMAX.NSP.name",
138 sdk_nspname, sdk_nspname_size);
139 /* FIXME: add roaming info? */
140 /* Set the group name -- this has to be a unique
141 * [a-zA-Z0-9_] string common to all the networks that
142 * are actually the same provider. In WiMAX each
143 * network from the CAPI is a single provider, so we
144 * just set this as the network name, encoded in
146 for (cnt = 0; station_name[cnt] != 0; cnt++)
147 sprintf(group + 3 * cnt, "%02x", station_name[cnt]);
148 group[3 * cnt + 1] = 0;
149 connman_network_set_group(nw, station_name);
150 if (connman_device_add_network(dev, nw) < 0) {
151 connman_network_unref(nw);
155 DBG("updating network %s nw %p\n", station_name, nw);
156 connman_network_set_available(nw, TRUE);
157 connman_network_set_strength(nw, strength);
163 * A new network is available [locking version]
165 * See __iwmx_cm_network_available() for docs
167 struct connman_network *iwmx_cm_network_available(
168 struct wmxsdk *wmxsdk, const char *station_name,
169 const void *sdk_nspname, size_t sdk_nspname_size,
172 struct connman_network *nw;
174 g_static_mutex_lock(&wmxsdk->network_mutex);
175 nw = __iwmx_cm_network_available(wmxsdk, station_name,
176 sdk_nspname, sdk_nspname_size,
178 g_static_mutex_unlock(&wmxsdk->network_mutex);
183 * The device has been enabled, make sure connman knows
185 static void iwmx_cm_dev_enabled(struct wmxsdk *wmxsdk)
187 struct connman_device *dev = wmxsdk->dev;
188 connman_inet_ifup(connman_device_get_index(dev));
189 connman_device_set_powered(dev, TRUE);
193 * The device has been disabled, make sure connman is aware of it.
195 static void iwmx_cm_dev_disabled(struct wmxsdk *wmxsdk)
197 struct connman_device *dev = wmxsdk->dev;
198 connman_inet_ifdown(connman_device_get_index(dev));
199 connman_device_set_powered(dev, FALSE);
203 * The device has been (externally to connman) connnected to a
204 * network, make sure connman knows.
206 * When the device is connected to a network, this function is called
207 * to change connman's internal state to reflect the fact.
209 * If the change came from an external entity, that means that our
210 * connect code wasn't called. Our connect code sets
211 * @wmxsdk->connecting_nw to the network we were connecting
212 * to. If it is unset, it means an external entity forced the device
213 * to connect. In that case, we need to find out which network it was
214 * connected to, and create/lookup a @nw for it.
216 * Once the nw is set, then we are done.
218 static void iwmx_cm_dev_connected(struct wmxsdk *wmxsdk)
220 struct connman_network *nw;
222 g_mutex_lock(wmxsdk->connect_mutex);
223 nw = wmxsdk->connecting_nw;
225 nw = __iwmx_sdk_get_connected_network(wmxsdk);
227 connman_error("wmxsdk: can't find connected network\n");
231 wmxsdk->nw = connman_network_ref(nw);
232 wmxsdk->connecting_nw = NULL;
233 connman_network_set_ipv4_method(nw, CONNMAN_IPCONFIG_METHOD_DHCP);
234 connman_network_set_connected(nw, TRUE);
235 DBG("connected to network %s\n",
236 connman_network_get_identifier(nw));
238 g_mutex_unlock(wmxsdk->connect_mutex);
242 * The device has been (externally to connman) disconnnected, make
245 * We need to reverse the steps done in iwmx_cm_dev_connected().
246 * If the event was caused by an external entity and we had no record
247 * of being connected to a network...well, bad luck. We'll just
248 * pretend it happened ok.
250 static void __iwmx_cm_dev_disconnected(struct wmxsdk *wmxsdk)
252 struct connman_network *nw = wmxsdk->nw;
255 DBG("disconnected from network %s\n",
256 connman_network_get_identifier(nw));
257 connman_network_set_connected(nw, FALSE);
258 connman_network_unref(nw);
261 DBG("disconnected from unknown network\n");
265 * The device has been disconnnected, make sure connman knows
267 * See __iwmx_cm_dev_disconnect() for more information.
269 static void iwmx_cm_dev_disconnected(struct wmxsdk *wmxsdk)
271 g_mutex_lock(wmxsdk->connect_mutex);
272 __iwmx_cm_dev_disconnected(wmxsdk);
273 g_mutex_unlock(wmxsdk->connect_mutex);
277 * Handle a change in state
279 * This is were most of the action happens. When the device changes
280 * state, this will catch it (through the state change callback or an
281 * explicit call) and call iwmx_cm_dev_*ed() to indicate to connman what
284 * Finally, cache the new device status.
286 void __iwmx_cm_state_change(struct wmxsdk *wmxsdk,
287 WIMAX_API_DEVICE_STATUS __new_status)
289 WIMAX_API_DEVICE_STATUS __old_status = wmxsdk->status;
290 WIMAX_API_DEVICE_STATUS old_status;
291 WIMAX_API_DEVICE_STATUS new_status;
294 * Simplify state transition computations.
296 * For practical effects, some states are the same
299 #if HAVE_IWMXSDK_STATUS_IDLE
300 /* Conection_Idle is the same as Data_Connected */
301 if (__old_status == WIMAX_API_DEVICE_STATUS_Connection_Idle)
302 old_status = WIMAX_API_DEVICE_STATUS_Data_Connected;
304 old_status = __old_status;
305 if (__new_status == WIMAX_API_DEVICE_STATUS_Connection_Idle)
306 new_status = WIMAX_API_DEVICE_STATUS_Data_Connected;
308 new_status = __new_status;
309 #endif /* #if HAVE_IWMXSDK_STATUS_IDLE */
310 /* Radio off: all are just RF_OFF_SW (the highest) */
311 switch (__old_status) {
312 case WIMAX_API_DEVICE_STATUS_RF_OFF_HW_SW:
313 case WIMAX_API_DEVICE_STATUS_RF_OFF_HW:
314 case WIMAX_API_DEVICE_STATUS_RF_OFF_SW:
315 old_status = WIMAX_API_DEVICE_STATUS_RF_OFF_SW;
318 old_status = __old_status;
322 switch (__new_status) {
323 case WIMAX_API_DEVICE_STATUS_RF_OFF_HW_SW:
324 case WIMAX_API_DEVICE_STATUS_RF_OFF_HW:
325 case WIMAX_API_DEVICE_STATUS_RF_OFF_SW:
326 new_status = WIMAX_API_DEVICE_STATUS_RF_OFF_SW;
329 new_status = __new_status;
333 /* If no real state change, do nothing */
334 if (old_status == new_status) {
335 DBG("no state changed\n");
338 DBG("state change from %d (%d: %s) to %d (%d: %s)\n",
339 old_status, __old_status,
340 iwmx_sdk_dev_status_to_str(__old_status),
341 new_status, __new_status,
342 iwmx_sdk_dev_status_to_str(__new_status));
344 /* Cleanup old state */
345 switch (old_status) {
346 case WIMAX_API_DEVICE_STATUS_UnInitialized:
347 /* This means the plugin is starting but the device is
348 * in some state already, so we need to update our
349 * internal knowledge of it. */
350 if (new_status > WIMAX_API_DEVICE_STATUS_RF_OFF_SW)
351 iwmx_cm_dev_enabled(wmxsdk);
353 case WIMAX_API_DEVICE_STATUS_RF_OFF_SW:
354 /* This means the radio is being turned on, so enable
355 * the device ( unless going to uninitialized). */
356 if (new_status != WIMAX_API_DEVICE_STATUS_RF_OFF_SW)
357 iwmx_cm_dev_enabled(wmxsdk);
359 case WIMAX_API_DEVICE_STATUS_Ready:
361 case WIMAX_API_DEVICE_STATUS_Scanning:
363 case WIMAX_API_DEVICE_STATUS_Connecting:
365 case WIMAX_API_DEVICE_STATUS_Data_Connected:
366 iwmx_cm_dev_disconnected(wmxsdk);
369 connman_error("wmxsdk: unknown old status %d\n", old_status);
373 /* Implement new state */
374 switch (new_status) {
375 case WIMAX_API_DEVICE_STATUS_UnInitialized:
377 case WIMAX_API_DEVICE_STATUS_RF_OFF_SW:
378 /* This means the radio is being turned off, so
379 * disable the device unless coming from uninitialized. */
380 if (old_status != WIMAX_API_DEVICE_STATUS_UnInitialized)
381 iwmx_cm_dev_disabled(wmxsdk);
383 case WIMAX_API_DEVICE_STATUS_Ready:
385 case WIMAX_API_DEVICE_STATUS_Scanning:
387 case WIMAX_API_DEVICE_STATUS_Connecting:
389 case WIMAX_API_DEVICE_STATUS_Data_Connected:
390 iwmx_cm_dev_connected(wmxsdk);
393 connman_error("wmxsdk: unknown new status %d\n", old_status);
396 wmxsdk->status = __new_status;
400 * Implement a device state transition [locking version]
402 * See __iwmx_cm_state_change()
404 void iwmx_cm_state_change(struct wmxsdk *wmxsdk,
405 WIMAX_API_DEVICE_STATUS __new_status)
407 g_mutex_lock(wmxsdk->status_mutex);
408 __iwmx_cm_state_change(wmxsdk, __new_status);
409 g_mutex_unlock(wmxsdk->status_mutex);
413 * Read the cached device status
415 WIMAX_API_DEVICE_STATUS iwmx_cm_status_get(struct wmxsdk *wmxsdk)
417 WIMAX_API_DEVICE_STATUS status;
419 g_mutex_lock(wmxsdk->status_mutex);
420 status = wmxsdk->status;
421 g_mutex_unlock(wmxsdk->status_mutex);
426 * Called by connman when a device is enabled by the user
428 * We need to turn the radio on; the state change function will poke
431 static int iwmx_cm_enable(struct connman_device *dev)
434 struct wmxsdk *wmxsdk = connman_device_get_data(dev);
436 connman_inet_ifup(connman_device_get_index(dev));
437 result = iwmx_sdk_rf_state_set(wmxsdk, WIMAX_API_RF_ON);
442 * Called by connman when a device is disabled by the user
444 * Simple: just make sure the radio is off; the state change function
445 * will poke the internals.
447 static int iwmx_cm_disable(struct connman_device *dev)
450 struct wmxsdk *wmxsdk = connman_device_get_data(dev);
452 result = iwmx_sdk_rf_state_set(wmxsdk, WIMAX_API_RF_OFF);
453 connman_inet_ifdown(connman_device_get_index(dev));
458 * Probe deferred call from when the mainloop is idle
460 * probe() schedules this to be called from the mainloop when idle to
461 * do a device status evaluation. Needed because of an internal race
462 * condition in connman. FIXME: deploy into _probe() when fixed.
464 static gboolean __iwmx_cm_probe_dpc(gpointer _wmxsdk)
467 struct wmxsdk *wmxsdk = _wmxsdk;
468 result = iwmx_sdk_get_device_status(wmxsdk);
470 connman_error("wmxsdk: can't get status: %d\n", result);
472 iwmx_cm_state_change(wmxsdk, result);
477 * Called by connman when a new device pops in
479 * We allocate our private structure, register with the WiMAX API,
480 * open their device, subscribe to all the callbacks.
482 * At the end, we launch a deferred call (to work around current
483 * connman issues that need to be fixed in the future) and update the
484 * device's status. This allows us to pick up the current status and
485 * adapt connman's idea of the device to it.
487 static int iwmx_cm_probe(struct connman_device *dev)
490 struct wmxsdk *wmxsdk = NULL;
492 wmxsdk = connman_device_get_data(dev);
494 /* not called from a discovery done by the WiMAX
495 * Network Service, ignore */
498 result = iwmx_sdk_setup(wmxsdk);
502 /* There is a race condition in the connman core that doesn't
503 * allow us to call this directly and things to work properly
504 * FIXME FIXME FIXME: merge _dpc call in here when connman is fixed */
505 g_idle_add(__iwmx_cm_probe_dpc, wmxsdk);
508 iwmx_sdk_remove(wmxsdk);
514 * Called when a device is removed from connman
516 * Cleanup all that is done in _probe. Remove callbacks, unregister
517 * from the WiMAX API.
519 static void iwmx_cm_remove(struct connman_device *dev)
521 struct wmxsdk *wmxsdk = connman_device_get_data(dev);
522 iwmx_sdk_remove(wmxsdk);
526 * Called by connman to ask the device to scan for networks
528 * We have set in the WiMAX API the scan result callbacks, so we just
529 * start a simple scan (not a wide one).
531 * First we obtain the current list of networks and pass it to the
532 * callback processor. Then we start an scan cycle.
534 static int iwmx_cm_scan(struct connman_device *dev)
536 struct wmxsdk *wmxsdk = connman_device_get_data(dev);
537 return iwmx_sdk_scan(wmxsdk);
541 * Driver for a WiMAX API based device.
543 static struct connman_device_driver iwmx_cm_device_driver = {
545 .type = CONNMAN_DEVICE_TYPE_WIMAX,
546 .probe = iwmx_cm_probe,
547 .remove = iwmx_cm_remove,
548 .enable = iwmx_cm_enable,
549 .disable = iwmx_cm_disable,
550 .scan = iwmx_cm_scan,
553 static int iwmx_cm_init(void)
557 result = connman_device_driver_register(&iwmx_cm_device_driver);
559 goto error_driver_register;
560 result = connman_network_driver_register(&iwmx_cm_network_driver);
562 goto error_network_driver_register;
563 result = iwmx_sdk_api_init();
565 goto error_iwmx_sdk_init;
569 connman_network_driver_unregister(&iwmx_cm_network_driver);
570 error_network_driver_register:
571 connman_device_driver_unregister(&iwmx_cm_device_driver);
572 error_driver_register:
576 static void iwmx_cm_exit(void)
579 connman_network_driver_unregister(&iwmx_cm_network_driver);
580 connman_device_driver_unregister(&iwmx_cm_device_driver);
583 CONNMAN_PLUGIN_DEFINE(iwmx, "Intel WiMAX SDK / Common API plugin",
584 CONNMAN_VERSION, CONNMAN_PLUGIN_PRIORITY_LOW,
585 iwmx_cm_init, iwmx_cm_exit);