Boot Linux faster!

Check our new training course

Boot Linux faster!

Check our new training course
and Creative Commons CC-BY-SA
lecture and lab materials

Bootlin logo

Elixir Cross Referencer

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
/*
 *
 *  oFono - Open Source Telephony
 *
 *  Copyright (C) 2010  Nokia Corporation and/or its subsidiary(-ies).
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <stdio.h>
#include <time.h>
#include <errno.h>
#include <stdint.h>

#include <glib.h>
#include <gdbus.h>

#include "ofono.h"

#include "common.h"

static GSList *g_drivers;

struct ofono_cdma_voicecall {
	struct ofono_cdma_phone_number phone_number;
	struct ofono_cdma_phone_number waiting_number;
	int direction;
	enum cdma_call_status status;
	time_t start_time;
	DBusMessage *pending;
	const struct ofono_cdma_voicecall_driver *driver;
	void *driver_data;
	struct ofono_atom *atom;
};

static const char *disconnect_reason_to_string(enum ofono_disconnect_reason r)
{
	switch (r) {
	case OFONO_DISCONNECT_REASON_LOCAL_HANGUP:
		return "local";
	case OFONO_DISCONNECT_REASON_REMOTE_HANGUP:
		return "remote";
	default:
		return "network";
	}
}

static const char *cdma_call_status_to_string(enum cdma_call_status status)
{
	switch (status) {
	case CDMA_CALL_STATUS_ACTIVE:
		return "active";
	case CDMA_CALL_STATUS_DIALING:
		return "dialing";
	case CDMA_CALL_STATUS_ALERTING:
		return "alerting";
	case CDMA_CALL_STATUS_INCOMING:
		return "incoming";
	case CDMA_CALL_STATUS_DISCONNECTED:
		return "disconnected";
	}

	return NULL;
}

static const char *time_to_str(const time_t *t)
{
	static char buf[128];
	struct tm tm;

	strftime(buf, 127, "%Y-%m-%dT%H:%M:%S%z", localtime_r(t, &tm));
	buf[127] = '\0';

	return buf;
}

static void generic_callback(const struct ofono_error *error, void *data)
{
	struct ofono_cdma_voicecall *vc = data;
	DBusMessage *reply;

	if (error->type == OFONO_ERROR_TYPE_NO_ERROR)
		reply = dbus_message_new_method_return(vc->pending);
	else
		reply = __ofono_error_failed(vc->pending);

	__ofono_dbus_pending_reply(&vc->pending, reply);
}

static void append_voicecall_properties(struct ofono_cdma_voicecall *vc,
					DBusMessageIter *dict)
{
	const char *status;
	const char *lineid;
	const char *waiting_call;
	dbus_bool_t call_waiting = FALSE;

	status = cdma_call_status_to_string(vc->status);
	ofono_dbus_dict_append(dict, "State", DBUS_TYPE_STRING, &status);

	lineid = cdma_phone_number_to_string(&vc->phone_number);
	ofono_dbus_dict_append(dict, "LineIdentification",
					DBUS_TYPE_STRING, &lineid);

	if (vc->waiting_number.number[0] != '\0') {
		waiting_call = cdma_phone_number_to_string(&vc->waiting_number);
		ofono_dbus_dict_append(dict, "CallWaitingNumber",
					DBUS_TYPE_STRING, &waiting_call);
		call_waiting = TRUE;
	}

	ofono_dbus_dict_append(dict, "CallWaiting",
					DBUS_TYPE_BOOLEAN, &call_waiting);

	if (vc->status == CDMA_CALL_STATUS_ACTIVE) {
		const char *timestr = time_to_str(&vc->start_time);

		ofono_dbus_dict_append(dict, "StartTime", DBUS_TYPE_STRING,
					&timestr);
	}
}

static DBusMessage *voicecall_manager_get_properties(DBusConnection *conn,
						DBusMessage *msg, void *data)
{
	struct ofono_cdma_voicecall *vc = data;
	DBusMessage *reply;
	DBusMessageIter iter;
	DBusMessageIter dict;

	reply = dbus_message_new_method_return(msg);

	if (reply == NULL)
		return NULL;

	dbus_message_iter_init_append(reply, &iter);

	dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
					OFONO_PROPERTIES_ARRAY_SIGNATURE,
					&dict);
	append_voicecall_properties(vc, &dict);
	dbus_message_iter_close_container(&iter, &dict);

	return reply;
}

static void voicecall_emit_disconnect_reason(struct ofono_cdma_voicecall *vc,
					enum ofono_disconnect_reason reason)
{
	DBusConnection *conn = ofono_dbus_get_connection();
	const char *path = __ofono_atom_get_path(vc->atom);
	const char *reason_str;

	reason_str = disconnect_reason_to_string(reason);

	g_dbus_emit_signal(conn, path, OFONO_CDMA_VOICECALL_MANAGER_INTERFACE,
				"DisconnectReason",
				DBUS_TYPE_STRING, &reason_str,
				DBUS_TYPE_INVALID);
}

static void voicecall_set_call_status(struct ofono_cdma_voicecall *vc,
						enum cdma_call_status status)
{
	DBusConnection *conn = ofono_dbus_get_connection();
	const char *path = __ofono_atom_get_path(vc->atom);
	const char *status_str;
	enum cdma_call_status old_status;

	DBG("status: %s", cdma_call_status_to_string(status));

	if (vc->status == status)
		return;

	old_status = vc->status;

	vc->status = status;

	status_str = cdma_call_status_to_string(status);

	ofono_dbus_signal_property_changed(conn, path,
					OFONO_CDMA_VOICECALL_MANAGER_INTERFACE,
					"State", DBUS_TYPE_STRING,
					&status_str);

	if (status == CDMA_CALL_STATUS_ACTIVE &&
			old_status == CDMA_CALL_STATUS_DIALING) {
		const char *timestr;

		vc->start_time = time(NULL);
		timestr = time_to_str(&vc->start_time);

		ofono_dbus_signal_property_changed(conn, path,
					OFONO_CDMA_VOICECALL_MANAGER_INTERFACE,
					"StartTime", DBUS_TYPE_STRING,
					&timestr);
	}

	/* TODO: Properly signal property changes here */
	if (status == CDMA_CALL_STATUS_DISCONNECTED) {
		memset(&vc->phone_number, 0,
				sizeof(struct ofono_cdma_phone_number));

		memset(&vc->waiting_number, 0,
			sizeof(struct ofono_cdma_phone_number));
	}
}

static void voicecall_set_call_lineid(struct ofono_cdma_voicecall *vc)
{
	DBusConnection *conn = ofono_dbus_get_connection();
	const char *path  = __ofono_atom_get_path(vc->atom);
	const char *lineid_str;

	/* For MO calls, LineID is the dialed phone number */
	lineid_str = cdma_phone_number_to_string(&vc->phone_number);

	ofono_dbus_signal_property_changed(conn, path,
					OFONO_CDMA_VOICECALL_MANAGER_INTERFACE,
					"LineIdentification",
					DBUS_TYPE_STRING, &lineid_str);
}

static void manager_dial_callback(const struct ofono_error *error, void *data)
{
	struct ofono_cdma_voicecall *vc = data;
	DBusMessage *reply;

	if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
		reply = __ofono_error_failed(vc->pending);
		__ofono_dbus_pending_reply(&vc->pending, reply);

		return;
	}

	voicecall_set_call_lineid(vc);
	vc->direction = CALL_DIRECTION_MOBILE_ORIGINATED;
	voicecall_set_call_status(vc, CDMA_CALL_STATUS_DIALING);

	reply = dbus_message_new_method_return(vc->pending);
	__ofono_dbus_pending_reply(&vc->pending, reply);
}

static DBusMessage *voicecall_manager_dial(DBusConnection *conn,
					DBusMessage *msg, void *data)
{
	struct ofono_cdma_voicecall *vc = data;
	const char *number;

	if (vc->pending)
		return __ofono_error_busy(msg);

	if (vc->status != CDMA_CALL_STATUS_DISCONNECTED)
		return __ofono_error_failed(msg);

	if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &number,
					DBUS_TYPE_INVALID) == FALSE)
		return __ofono_error_invalid_args(msg);

	if (!valid_cdma_phone_number_format(number))
		return __ofono_error_invalid_format(msg);

	if (vc->driver->dial == NULL)
		return __ofono_error_not_implemented(msg);

	vc->pending = dbus_message_ref(msg);

	string_to_cdma_phone_number(number, &vc->phone_number);
	vc->driver->dial(vc, &vc->phone_number, manager_dial_callback, vc);

	return NULL;
}

static DBusMessage *voicecall_manager_hangup(DBusConnection *conn,
					DBusMessage *msg, void *data)
{
	struct ofono_cdma_voicecall *vc = data;

	if (vc->pending)
		return __ofono_error_busy(msg);

	if (vc->driver->hangup == NULL)
		return __ofono_error_not_implemented(msg);

	if (vc->status == CDMA_CALL_STATUS_DISCONNECTED)
		return __ofono_error_failed(msg);

	vc->pending = dbus_message_ref(msg);

	vc->driver->hangup(vc, generic_callback, vc);

	return NULL;
}

static DBusMessage *voicecall_manager_answer(DBusConnection *conn,
					DBusMessage *msg, void *data)
{
	struct ofono_cdma_voicecall *vc = data;

	if (vc->pending)
		return __ofono_error_busy(msg);

	if (vc->driver->answer == NULL)
		return __ofono_error_not_implemented(msg);

	if (vc->status != CDMA_CALL_STATUS_INCOMING)
		return __ofono_error_failed(msg);

	vc->pending = dbus_message_ref(msg);

	vc->driver->answer(vc, generic_callback, vc);

	return NULL;
}

static DBusMessage *voicecall_manager_flash(DBusConnection *conn,
					DBusMessage *msg, void *data)
{
	struct ofono_cdma_voicecall *vc = data;
	const char *string;

	if (vc->pending)
		return __ofono_error_busy(msg);

	if (vc->driver->send_flash == NULL)
		return __ofono_error_not_implemented(msg);

	if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &string,
					DBUS_TYPE_INVALID) == FALSE)
		return __ofono_error_invalid_args(msg);

	vc->pending = dbus_message_ref(msg);

	vc->driver->send_flash(vc, string, generic_callback, vc);

	return NULL;
}

static ofono_bool_t is_valid_tones(const char *tones)
{
	int len;
	int i;

	if (tones == NULL)
		return FALSE;

	len = strlen(tones);
	if (len == 0)
		return FALSE;

	for (i = 0; i < len; i++) {
		if (g_ascii_isdigit(tones[i]) || tones[i] == '*' ||
				tones[i] == '#')
			continue;
		else
			return FALSE;
	}

	return TRUE;
}

static DBusMessage *voicecall_manager_tone(DBusConnection *conn,
					DBusMessage *msg, void *data)
{
	struct ofono_cdma_voicecall *vc = data;
	const char *tones;

	if (vc->pending)
		return __ofono_error_busy(msg);

	if (vc->driver->send_tones == NULL)
		return __ofono_error_not_implemented(msg);

	if (vc->status != CDMA_CALL_STATUS_ACTIVE)
		return __ofono_error_failed(msg);

	if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &tones,
					DBUS_TYPE_INVALID) == FALSE)
		return __ofono_error_invalid_args(msg);

	if (is_valid_tones(tones) == FALSE)
		return __ofono_error_invalid_args(msg);

	vc->pending = dbus_message_ref(msg);

	vc->driver->send_tones(vc,  tones, generic_callback, vc);

	return NULL;
}

static const GDBusMethodTable manager_methods[] = {
	{ GDBUS_METHOD("GetProperties",
			NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
			voicecall_manager_get_properties) },
	{ GDBUS_ASYNC_METHOD("Dial", GDBUS_ARGS({ "number", "s" }), NULL,
						voicecall_manager_dial) },
	{ GDBUS_ASYNC_METHOD("Hangup", NULL, NULL,
						voicecall_manager_hangup) },
	{ GDBUS_ASYNC_METHOD("Answer", NULL, NULL,
						voicecall_manager_answer) },
	{ GDBUS_ASYNC_METHOD("SendFlash",
				GDBUS_ARGS({ "flash_string", "s" }), NULL,
				voicecall_manager_flash) },
	{ GDBUS_ASYNC_METHOD("SendTones",
				GDBUS_ARGS({ "tones", "s" }), NULL,
				voicecall_manager_tone) },
	{ }
};

static const GDBusSignalTable manager_signals[] = {
	{ GDBUS_SIGNAL("PropertyChanged",
			GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
	{ GDBUS_SIGNAL("DisconnectReason",
			GDBUS_ARGS({ "reason", "s" })) },
	{ }
};

void ofono_cdma_voicecall_disconnected(struct ofono_cdma_voicecall *vc,
					enum ofono_disconnect_reason reason,
					const struct ofono_error *error)
{
	DBG("Got disconnection event for reason: %d", reason);

	if (reason != OFONO_DISCONNECT_REASON_UNKNOWN)
		voicecall_emit_disconnect_reason(vc, reason);

	voicecall_set_call_status(vc, CDMA_CALL_STATUS_DISCONNECTED);
}

int ofono_cdma_voicecall_driver_register(
				const struct ofono_cdma_voicecall_driver *d)
{
	DBG("driver: %p, name: %s", d, d->name);

	if (d->probe == NULL)
		return -EINVAL;

	g_drivers = g_slist_prepend(g_drivers, (void *)d);

	return 0;
}

void ofono_cdma_voicecall_driver_unregister(
				const struct ofono_cdma_voicecall_driver *d)
{
	DBG("driver: %p, name: %s", d, d->name);

	g_drivers = g_slist_remove(g_drivers, (void *)d);
}

static void cdma_voicecall_unregister(struct ofono_atom *atom)
{
	DBusConnection *conn = ofono_dbus_get_connection();
	struct ofono_modem *modem = __ofono_atom_get_modem(atom);
	const char *path = __ofono_atom_get_path(atom);

	g_dbus_unregister_interface(conn, path,
				OFONO_CDMA_VOICECALL_MANAGER_INTERFACE);
	ofono_modem_remove_interface(modem,
				OFONO_CDMA_VOICECALL_MANAGER_INTERFACE);
}

static void voicecall_manager_remove(struct ofono_atom *atom)
{
	struct ofono_cdma_voicecall *vc = __ofono_atom_get_data(atom);

	DBG("atom: %p", atom);

	if (vc == NULL)
		return;

	if (vc->driver && vc->driver->remove)
		vc->driver->remove(vc);

	g_free(vc);
}

struct ofono_cdma_voicecall *ofono_cdma_voicecall_create(
						struct ofono_modem *modem,
						unsigned int vendor,
						const char *driver,
						void *data)
{
	struct ofono_cdma_voicecall *vc;
	GSList *l;

	if (driver == NULL)
		return NULL;

	vc = g_try_new0(struct ofono_cdma_voicecall, 1);
	if (vc == NULL)
		return NULL;

	vc->status = CDMA_CALL_STATUS_DISCONNECTED;

	vc->atom = __ofono_modem_add_atom(modem,
					OFONO_ATOM_TYPE_CDMA_VOICECALL_MANAGER,
					voicecall_manager_remove, vc);

	for (l = g_drivers; l; l = l->next) {
		const struct ofono_cdma_voicecall_driver *drv = l->data;

		if (g_strcmp0(drv->name, driver))
			continue;

		if (drv->probe(vc, vendor, data) < 0)
			continue;

		vc->driver = drv;
		break;
	}

	return vc;
}

void ofono_cdma_voicecall_register(struct ofono_cdma_voicecall *vc)
{
	DBusConnection *conn = ofono_dbus_get_connection();
	struct ofono_modem *modem = __ofono_atom_get_modem(vc->atom);
	const char *path = __ofono_atom_get_path(vc->atom);

	if (!g_dbus_register_interface(conn, path,
					OFONO_CDMA_VOICECALL_MANAGER_INTERFACE,
					manager_methods, manager_signals, NULL,
					vc, NULL)) {
		ofono_error("Could not create %s interface",
				OFONO_CDMA_VOICECALL_MANAGER_INTERFACE);
		return;
	}

	ofono_modem_add_interface(modem,
				OFONO_CDMA_VOICECALL_MANAGER_INTERFACE);

	__ofono_atom_register(vc->atom, cdma_voicecall_unregister);
}

void ofono_cdma_voicecall_remove(struct ofono_cdma_voicecall *vc)
{
	__ofono_atom_free(vc->atom);
}

void ofono_cdma_voicecall_set_data(struct ofono_cdma_voicecall *vc, void *data)
{
	vc->driver_data = data;
}

void *ofono_cdma_voicecall_get_data(struct ofono_cdma_voicecall *vc)
{
	return vc->driver_data;
}