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bluetooth: Fix using pointer-pointer when appending an array as variant
[pulseaudio] / src / modules / bluetooth / bluetooth-util.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2008-2009 Joao Paulo Rechi Vita
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 USA.
20 ***/
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include <pulsecore/core-util.h>
27 #include <pulsecore/shared.h>
28 #include <pulsecore/dbus-shared.h>
29
30 #include "bluetooth-util.h"
31 #include "ipc.h"
32 #include "a2dp-codecs.h"
33
34 #define HFP_AG_ENDPOINT "/MediaEndpoint/HFPAG"
35 #define A2DP_SOURCE_ENDPOINT "/MediaEndpoint/A2DPSource"
36 #define A2DP_SINK_ENDPOINT "/MediaEndpoint/A2DPSink"
37
38 #define ENDPOINT_INTROSPECT_XML \
39 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
40 "<node>" \
41 " <interface name=\"org.bluez.MediaEndpoint\">" \
42 " <method name=\"SetConfiguration\">" \
43 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
44 " <arg name=\"configuration\" direction=\"in\" type=\"ay\"/>" \
45 " </method>" \
46 " <method name=\"SelectConfiguration\">" \
47 " <arg name=\"capabilities\" direction=\"in\" type=\"ay\"/>" \
48 " <arg name=\"configuration\" direction=\"out\" type=\"ay\"/>" \
49 " </method>" \
50 " <method name=\"ClearConfiguration\">" \
51 " </method>" \
52 " <method name=\"Release\">" \
53 " </method>" \
54 " </interface>" \
55 " <interface name=\"org.freedesktop.DBus.Introspectable\">" \
56 " <method name=\"Introspect\">" \
57 " <arg name=\"data\" type=\"s\" direction=\"out\"/>" \
58 " </method>" \
59 " </interface>" \
60 "</node>"
61
62 struct pa_bluetooth_discovery {
63 PA_REFCNT_DECLARE;
64
65 pa_core *core;
66 pa_dbus_connection *connection;
67 PA_LLIST_HEAD(pa_dbus_pending, pending);
68 pa_hashmap *devices;
69 pa_hook hook;
70 pa_bool_t filter_added;
71 };
72
73 static void get_properties_reply(DBusPendingCall *pending, void *userdata);
74 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, DBusMessage *m, DBusPendingCallNotifyFunction func, void *call_data);
75
76 static pa_bt_audio_state_t pa_bt_audio_state_from_string(const char* value) {
77 pa_assert(value);
78
79 if (pa_streq(value, "disconnected"))
80 return PA_BT_AUDIO_STATE_DISCONNECTED;
81 else if (pa_streq(value, "connecting"))
82 return PA_BT_AUDIO_STATE_CONNECTING;
83 else if (pa_streq(value, "connected"))
84 return PA_BT_AUDIO_STATE_CONNECTED;
85 else if (pa_streq(value, "playing"))
86 return PA_BT_AUDIO_STATE_PLAYING;
87
88 return PA_BT_AUDIO_STATE_INVALID;
89 }
90
91 static pa_bluetooth_uuid *uuid_new(const char *uuid) {
92 pa_bluetooth_uuid *u;
93
94 u = pa_xnew(pa_bluetooth_uuid, 1);
95 u->uuid = pa_xstrdup(uuid);
96 PA_LLIST_INIT(pa_bluetooth_uuid, u);
97
98 return u;
99 }
100
101 static void uuid_free(pa_bluetooth_uuid *u) {
102 pa_assert(u);
103
104 pa_xfree(u->uuid);
105 pa_xfree(u);
106 }
107
108 static pa_bluetooth_device* device_new(const char *path) {
109 pa_bluetooth_device *d;
110
111 d = pa_xnew(pa_bluetooth_device, 1);
112
113 d->dead = FALSE;
114
115 d->device_info_valid = 0;
116
117 d->name = NULL;
118 d->path = pa_xstrdup(path);
119 d->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
120 d->paired = -1;
121 d->alias = NULL;
122 d->device_connected = -1;
123 PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
124 d->address = NULL;
125 d->class = -1;
126 d->trusted = -1;
127
128 d->audio_state = PA_BT_AUDIO_STATE_INVALID;
129 d->audio_sink_state = PA_BT_AUDIO_STATE_INVALID;
130 d->audio_source_state = PA_BT_AUDIO_STATE_INVALID;
131 d->headset_state = PA_BT_AUDIO_STATE_INVALID;
132 d->hfgw_state = PA_BT_AUDIO_STATE_INVALID;
133
134 return d;
135 }
136
137 static void transport_free(pa_bluetooth_transport *t) {
138 pa_assert(t);
139
140 pa_xfree(t->path);
141 pa_xfree(t->config);
142 pa_xfree(t);
143 }
144
145 static void device_free(pa_bluetooth_device *d) {
146 pa_bluetooth_uuid *u;
147 pa_bluetooth_transport *t;
148
149 pa_assert(d);
150
151 while ((t = pa_hashmap_steal_first(d->transports)))
152 transport_free(t);
153
154 pa_hashmap_free(d->transports, NULL, NULL);
155
156 while ((u = d->uuids)) {
157 PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
158 uuid_free(u);
159 }
160
161 pa_xfree(d->name);
162 pa_xfree(d->path);
163 pa_xfree(d->alias);
164 pa_xfree(d->address);
165 pa_xfree(d);
166 }
167
168 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
169 pa_assert(d);
170
171 return
172 d->device_info_valid && (d->hfgw_state != PA_BT_AUDIO_STATE_INVALID ||
173 (d->audio_state != PA_BT_AUDIO_STATE_INVALID &&
174 (d->audio_sink_state != PA_BT_AUDIO_STATE_INVALID ||
175 d->audio_source_state != PA_BT_AUDIO_STATE_INVALID ||
176 d->headset_state != PA_BT_AUDIO_STATE_INVALID)));
177 }
178
179 static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
180 const char *key;
181 DBusMessageIter variant_i;
182
183 pa_assert(y);
184 pa_assert(d);
185 pa_assert(i);
186
187 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
188 pa_log("Property name not a string.");
189 return -1;
190 }
191
192 dbus_message_iter_get_basic(i, &key);
193
194 if (!dbus_message_iter_next(i)) {
195 pa_log("Property value missing");
196 return -1;
197 }
198
199 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
200 pa_log("Property value not a variant.");
201 return -1;
202 }
203
204 dbus_message_iter_recurse(i, &variant_i);
205
206 /* pa_log_debug("Parsing property org.bluez.Device.%s", key); */
207
208 switch (dbus_message_iter_get_arg_type(&variant_i)) {
209
210 case DBUS_TYPE_STRING: {
211
212 const char *value;
213 dbus_message_iter_get_basic(&variant_i, &value);
214
215 if (pa_streq(key, "Name")) {
216 pa_xfree(d->name);
217 d->name = pa_xstrdup(value);
218 } else if (pa_streq(key, "Alias")) {
219 pa_xfree(d->alias);
220 d->alias = pa_xstrdup(value);
221 } else if (pa_streq(key, "Address")) {
222 pa_xfree(d->address);
223 d->address = pa_xstrdup(value);
224 }
225
226 /* pa_log_debug("Value %s", value); */
227
228 break;
229 }
230
231 case DBUS_TYPE_BOOLEAN: {
232
233 dbus_bool_t value;
234 dbus_message_iter_get_basic(&variant_i, &value);
235
236 if (pa_streq(key, "Paired"))
237 d->paired = !!value;
238 else if (pa_streq(key, "Connected"))
239 d->device_connected = !!value;
240 else if (pa_streq(key, "Trusted"))
241 d->trusted = !!value;
242
243 /* pa_log_debug("Value %s", pa_yes_no(value)); */
244
245 break;
246 }
247
248 case DBUS_TYPE_UINT32: {
249
250 uint32_t value;
251 dbus_message_iter_get_basic(&variant_i, &value);
252
253 if (pa_streq(key, "Class"))
254 d->class = (int) value;
255
256 /* pa_log_debug("Value %u", (unsigned) value); */
257
258 break;
259 }
260
261 case DBUS_TYPE_ARRAY: {
262
263 DBusMessageIter ai;
264 dbus_message_iter_recurse(&variant_i, &ai);
265
266 if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
267 pa_streq(key, "UUIDs")) {
268
269 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
270 pa_bluetooth_uuid *node;
271 const char *value;
272 DBusMessage *m;
273
274 dbus_message_iter_get_basic(&ai, &value);
275 node = uuid_new(value);
276 PA_LLIST_PREPEND(pa_bluetooth_uuid, d->uuids, node);
277
278 /* Vudentz said the interfaces are here when the UUIDs are announced */
279 if (strcasecmp(HSP_AG_UUID, value) == 0 || strcasecmp(HFP_AG_UUID, value) == 0) {
280 pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.HandsfreeGateway", "GetProperties"));
281 send_and_add_to_pending(y, m, get_properties_reply, d);
282 } else if (strcasecmp(HSP_HS_UUID, value) == 0 || strcasecmp(HFP_HS_UUID, value) == 0) {
283 pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Headset", "GetProperties"));
284 send_and_add_to_pending(y, m, get_properties_reply, d);
285 } else if (strcasecmp(A2DP_SINK_UUID, value) == 0) {
286 pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.AudioSink", "GetProperties"));
287 send_and_add_to_pending(y, m, get_properties_reply, d);
288 } else if (strcasecmp(A2DP_SOURCE_UUID, value) == 0) {
289 pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.AudioSource", "GetProperties"));
290 send_and_add_to_pending(y, m, get_properties_reply, d);
291 }
292
293 /* this might eventually be racy if .Audio is not there yet, but the State change will come anyway later, so this call is for cold-detection mostly */
294 pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Audio", "GetProperties"));
295 send_and_add_to_pending(y, m, get_properties_reply, d);
296
297 if (!dbus_message_iter_next(&ai))
298 break;
299 }
300 }
301
302 break;
303 }
304 }
305
306 return 0;
307 }
308
309 static int parse_audio_property(pa_bluetooth_discovery *u, int *state, DBusMessageIter *i) {
310 const char *key;
311 DBusMessageIter variant_i;
312
313 pa_assert(u);
314 pa_assert(state);
315 pa_assert(i);
316
317 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
318 pa_log("Property name not a string.");
319 return -1;
320 }
321
322 dbus_message_iter_get_basic(i, &key);
323
324 if (!dbus_message_iter_next(i)) {
325 pa_log("Property value missing");
326 return -1;
327 }
328
329 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
330 pa_log("Property value not a variant.");
331 return -1;
332 }
333
334 dbus_message_iter_recurse(i, &variant_i);
335
336 /* pa_log_debug("Parsing property org.bluez.{Audio|AudioSink|AudioSource|Headset}.%s", key); */
337
338 switch (dbus_message_iter_get_arg_type(&variant_i)) {
339
340 case DBUS_TYPE_STRING: {
341
342 const char *value;
343 dbus_message_iter_get_basic(&variant_i, &value);
344
345 if (pa_streq(key, "State")) {
346 *state = pa_bt_audio_state_from_string(value);
347 pa_log_debug("dbus: property 'State' changed to value '%s'", value);
348 }
349
350 break;
351 }
352 }
353
354 return 0;
355 }
356
357 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t dead) {
358 pa_assert(y);
359 pa_assert(d);
360
361 if (!device_is_audio(d))
362 return;
363
364 d->dead = dead;
365 pa_hook_fire(&y->hook, d);
366 }
367
368 static void remove_all_devices(pa_bluetooth_discovery *y) {
369 pa_bluetooth_device *d;
370
371 pa_assert(y);
372
373 while ((d = pa_hashmap_steal_first(y->devices))) {
374 run_callback(y, d, TRUE);
375 device_free(d);
376 }
377 }
378
379 static pa_bluetooth_device *found_device(pa_bluetooth_discovery *y, const char* path) {
380 DBusMessage *m;
381 pa_bluetooth_device *d;
382
383 pa_assert(y);
384 pa_assert(path);
385
386 d = pa_hashmap_get(y->devices, path);
387 if (d)
388 return d;
389
390 d = device_new(path);
391
392 pa_hashmap_put(y->devices, d->path, d);
393
394 pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
395 send_and_add_to_pending(y, m, get_properties_reply, d);
396
397 /* Before we read the other properties (Audio, AudioSink, AudioSource,
398 * Headset) we wait that the UUID is read */
399 return d;
400 }
401
402 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
403 DBusMessage *r;
404 DBusMessageIter arg_i, element_i;
405 pa_dbus_pending *p;
406 pa_bluetooth_device *d;
407 pa_bluetooth_discovery *y;
408 int valid;
409
410 pa_assert_se(p = userdata);
411 pa_assert_se(y = p->context_data);
412 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
413
414 /* pa_log_debug("Got %s.GetProperties response for %s", */
415 /* dbus_message_get_interface(p->message), */
416 /* dbus_message_get_path(p->message)); */
417
418 /* We don't use p->call_data here right-away since the device
419 * might already be invalidated at this point */
420
421 if (!(d = pa_hashmap_get(y->devices, dbus_message_get_path(p->message))))
422 return;
423
424 pa_assert(p->call_data == d);
425
426 valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
427
428 if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
429 d->device_info_valid = valid;
430
431 if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
432 pa_log_debug("Bluetooth daemon is apparently not available.");
433 remove_all_devices(y);
434 goto finish2;
435 }
436
437 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
438
439 if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
440 pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
441
442 goto finish;
443 }
444
445 if (!dbus_message_iter_init(r, &arg_i)) {
446 pa_log("GetProperties reply has no arguments.");
447 goto finish;
448 }
449
450 if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
451 pa_log("GetProperties argument is not an array.");
452 goto finish;
453 }
454
455 dbus_message_iter_recurse(&arg_i, &element_i);
456 while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
457
458 if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
459 DBusMessageIter dict_i;
460
461 dbus_message_iter_recurse(&element_i, &dict_i);
462
463 if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
464 if (parse_device_property(y, d, &dict_i) < 0)
465 goto finish;
466
467 } else if (dbus_message_has_interface(p->message, "org.bluez.Audio")) {
468 if (parse_audio_property(y, &d->audio_state, &dict_i) < 0)
469 goto finish;
470
471 } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
472 if (parse_audio_property(y, &d->headset_state, &dict_i) < 0)
473 goto finish;
474
475 } else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
476 if (parse_audio_property(y, &d->audio_sink_state, &dict_i) < 0)
477 goto finish;
478
479 } else if (dbus_message_has_interface(p->message, "org.bluez.AudioSource")) {
480 if (parse_audio_property(y, &d->audio_source_state, &dict_i) < 0)
481 goto finish;
482
483 } else if (dbus_message_has_interface(p->message, "org.bluez.HandsfreeGateway")) {
484 if (parse_audio_property(y, &d->hfgw_state, &arg_i) < 0)
485 goto finish;
486
487 }
488 }
489
490 if (!dbus_message_iter_next(&element_i))
491 break;
492 }
493
494 finish:
495 run_callback(y, d, FALSE);
496
497 finish2:
498 dbus_message_unref(r);
499
500 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
501 pa_dbus_pending_free(p);
502 }
503
504 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, DBusMessage *m, DBusPendingCallNotifyFunction func, void *call_data) {
505 pa_dbus_pending *p;
506 DBusPendingCall *call;
507
508 pa_assert(y);
509 pa_assert(m);
510
511 pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
512
513 p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, call_data);
514 PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
515 dbus_pending_call_set_notify(call, func, p, NULL);
516
517 return p;
518 }
519
520 #ifdef DBUS_TYPE_UNIX_FD
521 static void register_endpoint_reply(DBusPendingCall *pending, void *userdata) {
522 DBusError e;
523 DBusMessage *r;
524 pa_dbus_pending *p;
525 pa_bluetooth_discovery *y;
526 char *endpoint;
527
528 pa_assert(pending);
529
530 dbus_error_init(&e);
531
532 pa_assert_se(p = userdata);
533 pa_assert_se(y = p->context_data);
534 pa_assert_se(endpoint = p->call_data);
535 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
536
537 if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
538 pa_log_debug("Bluetooth daemon is apparently not available.");
539 remove_all_devices(y);
540 goto finish;
541 }
542
543 if (dbus_message_is_error(r, PA_BLUETOOTH_ERROR_NOT_SUPPORTED)) {
544 pa_log_info("Couldn't register endpoint %s, because BlueZ is configured to disable the endpoint type.", endpoint);
545 goto finish;
546 }
547
548 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
549 pa_log("Error from RegisterEndpoint reply: %s", dbus_message_get_error_name(r));
550 goto finish;
551 }
552
553 finish:
554 dbus_message_unref(r);
555
556 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
557 pa_dbus_pending_free(p);
558
559 pa_xfree(endpoint);
560 }
561 #endif
562
563 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
564 DBusError e;
565 DBusMessage *r;
566 char **paths = NULL;
567 int num = -1;
568 pa_dbus_pending *p;
569 pa_bluetooth_discovery *y;
570
571 pa_assert(pending);
572
573 dbus_error_init(&e);
574
575 pa_assert_se(p = userdata);
576 pa_assert_se(y = p->context_data);
577 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
578
579 if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
580 pa_log_debug("Bluetooth daemon is apparently not available.");
581 remove_all_devices(y);
582 goto finish;
583 }
584
585 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
586 pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
587 goto finish;
588 }
589
590 if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
591 pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
592 dbus_error_free(&e);
593 } else {
594 int i;
595
596 for (i = 0; i < num; ++i)
597 found_device(y, paths[i]);
598 }
599
600 finish:
601 if (paths)
602 dbus_free_string_array(paths);
603
604 dbus_message_unref(r);
605
606 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
607 pa_dbus_pending_free(p);
608 }
609
610 #ifdef DBUS_TYPE_UNIX_FD
611 static void register_endpoint(pa_bluetooth_discovery *y, const char *path, const char *endpoint, const char *uuid) {
612 DBusMessage *m;
613 DBusMessageIter i, d;
614 uint8_t codec = 0;
615
616 pa_log_debug("Registering %s on adapter %s.", endpoint, path);
617
618 pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Media", "RegisterEndpoint"));
619
620 dbus_message_iter_init_append(m, &i);
621
622 dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &endpoint);
623
624 dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
625 DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
626 &d);
627
628 pa_dbus_append_basic_variant_dict_entry(&d, "UUID", DBUS_TYPE_STRING, &uuid);
629
630 pa_dbus_append_basic_variant_dict_entry(&d, "Codec", DBUS_TYPE_BYTE, &codec);
631
632 if (pa_streq(uuid, HFP_AG_UUID)) {
633 uint8_t capability = 0;
634 pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &capability, 1);
635 } else {
636 a2dp_sbc_t capabilities;
637
638 capabilities.channel_mode = BT_A2DP_CHANNEL_MODE_MONO | BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL |
639 BT_A2DP_CHANNEL_MODE_STEREO | BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
640 capabilities.frequency = BT_SBC_SAMPLING_FREQ_16000 | BT_SBC_SAMPLING_FREQ_32000 |
641 BT_SBC_SAMPLING_FREQ_44100 | BT_SBC_SAMPLING_FREQ_48000;
642 capabilities.allocation_method = BT_A2DP_ALLOCATION_SNR | BT_A2DP_ALLOCATION_LOUDNESS;
643 capabilities.subbands = BT_A2DP_SUBBANDS_4 | BT_A2DP_SUBBANDS_8;
644 capabilities.block_length = BT_A2DP_BLOCK_LENGTH_4 | BT_A2DP_BLOCK_LENGTH_8 |
645 BT_A2DP_BLOCK_LENGTH_12 | BT_A2DP_BLOCK_LENGTH_16;
646 capabilities.min_bitpool = MIN_BITPOOL;
647 capabilities.max_bitpool = MAX_BITPOOL;
648
649 pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &capabilities, sizeof(capabilities));
650 }
651
652 dbus_message_iter_close_container(&i, &d);
653
654 send_and_add_to_pending(y, m, register_endpoint_reply, pa_xstrdup(endpoint));
655 }
656 #endif
657
658 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
659 DBusMessage *m;
660
661 pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
662 send_and_add_to_pending(y, m, list_devices_reply, NULL);
663
664 #ifdef DBUS_TYPE_UNIX_FD
665 register_endpoint(y, path, HFP_AG_ENDPOINT, HFP_AG_UUID);
666 register_endpoint(y, path, A2DP_SOURCE_ENDPOINT, A2DP_SOURCE_UUID);
667 register_endpoint(y, path, A2DP_SINK_ENDPOINT, A2DP_SINK_UUID);
668 #endif
669 }
670
671 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
672 DBusError e;
673 DBusMessage *r;
674 char **paths = NULL;
675 int num = -1;
676 pa_dbus_pending *p;
677 pa_bluetooth_discovery *y;
678
679 pa_assert(pending);
680
681 dbus_error_init(&e);
682
683 pa_assert_se(p = userdata);
684 pa_assert_se(y = p->context_data);
685 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
686
687 if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
688 pa_log_debug("Bluetooth daemon is apparently not available.");
689 remove_all_devices(y);
690 goto finish;
691 }
692
693 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
694 pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
695 goto finish;
696 }
697
698 if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
699 pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
700 dbus_error_free(&e);
701 } else {
702 int i;
703
704 for (i = 0; i < num; ++i)
705 found_adapter(y, paths[i]);
706 }
707
708 finish:
709 if (paths)
710 dbus_free_string_array(paths);
711
712 dbus_message_unref(r);
713
714 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
715 pa_dbus_pending_free(p);
716 }
717
718 static void list_adapters(pa_bluetooth_discovery *y) {
719 DBusMessage *m;
720 pa_assert(y);
721
722 pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
723 send_and_add_to_pending(y, m, list_adapters_reply, NULL);
724 }
725
726 int pa_bluetooth_transport_parse_property(pa_bluetooth_transport *t, DBusMessageIter *i)
727 {
728 const char *key;
729 DBusMessageIter variant_i;
730
731 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
732 pa_log("Property name not a string.");
733 return -1;
734 }
735
736 dbus_message_iter_get_basic(i, &key);
737
738 if (!dbus_message_iter_next(i)) {
739 pa_log("Property value missing");
740 return -1;
741 }
742
743 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
744 pa_log("Property value not a variant.");
745 return -1;
746 }
747
748 dbus_message_iter_recurse(i, &variant_i);
749
750 switch (dbus_message_iter_get_arg_type(&variant_i)) {
751
752 case DBUS_TYPE_BOOLEAN: {
753
754 pa_bool_t *value;
755 dbus_message_iter_get_basic(&variant_i, &value);
756
757 if (pa_streq(key, "NREC"))
758 t->nrec = value;
759
760 break;
761 }
762 }
763
764 return 0;
765 }
766
767 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
768 DBusError err;
769 pa_bluetooth_discovery *y;
770
771 pa_assert(bus);
772 pa_assert(m);
773
774 pa_assert_se(y = userdata);
775
776 dbus_error_init(&err);
777
778 pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
779 dbus_message_get_interface(m),
780 dbus_message_get_path(m),
781 dbus_message_get_member(m));
782
783 if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
784 const char *path;
785 pa_bluetooth_device *d;
786
787 if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
788 pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
789 goto fail;
790 }
791
792 pa_log_debug("Device %s removed", path);
793
794 if ((d = pa_hashmap_remove(y->devices, path))) {
795 run_callback(y, d, TRUE);
796 device_free(d);
797 }
798
799 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
800
801 } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
802 const char *path;
803
804 if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
805 pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
806 goto fail;
807 }
808
809 pa_log_debug("Device %s created", path);
810
811 found_device(y, path);
812 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
813
814 } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
815 const char *path;
816
817 if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
818 pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
819 goto fail;
820 }
821
822 pa_log_debug("Adapter %s created", path);
823
824 found_adapter(y, path);
825 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
826
827 } else if (dbus_message_is_signal(m, "org.bluez.Audio", "PropertyChanged") ||
828 dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
829 dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
830 dbus_message_is_signal(m, "org.bluez.AudioSource", "PropertyChanged") ||
831 dbus_message_is_signal(m, "org.bluez.HandsfreeGateway", "PropertyChanged") ||
832 dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
833
834 pa_bluetooth_device *d;
835
836 if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
837 DBusMessageIter arg_i;
838
839 if (!dbus_message_iter_init(m, &arg_i)) {
840 pa_log("Failed to parse PropertyChanged: %s", err.message);
841 goto fail;
842 }
843
844 if (dbus_message_has_interface(m, "org.bluez.Device")) {
845 if (parse_device_property(y, d, &arg_i) < 0)
846 goto fail;
847
848 } else if (dbus_message_has_interface(m, "org.bluez.Audio")) {
849 if (parse_audio_property(y, &d->audio_state, &arg_i) < 0)
850 goto fail;
851
852 } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
853 if (parse_audio_property(y, &d->headset_state, &arg_i) < 0)
854 goto fail;
855
856 } else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
857 if (parse_audio_property(y, &d->audio_sink_state, &arg_i) < 0)
858 goto fail;
859
860 } else if (dbus_message_has_interface(m, "org.bluez.AudioSource")) {
861 if (parse_audio_property(y, &d->audio_source_state, &arg_i) < 0)
862 goto fail;
863
864 } else if (dbus_message_has_interface(m, "org.bluez.HandsfreeGateway")) {
865 if (parse_audio_property(y, &d->hfgw_state, &arg_i) < 0)
866 goto fail;
867 }
868
869 run_callback(y, d, FALSE);
870 }
871
872 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
873
874 } else if (dbus_message_is_signal(m, "org.bluez.Device", "DisconnectRequested")) {
875 pa_bluetooth_device *d;
876
877 if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
878 /* Device will disconnect in 2 sec */
879 d->audio_state = PA_BT_AUDIO_STATE_DISCONNECTED;
880 d->audio_sink_state = PA_BT_AUDIO_STATE_DISCONNECTED;
881 d->audio_source_state = PA_BT_AUDIO_STATE_DISCONNECTED;
882 d->headset_state = PA_BT_AUDIO_STATE_DISCONNECTED;
883 d->hfgw_state = PA_BT_AUDIO_STATE_DISCONNECTED;
884
885 run_callback(y, d, FALSE);
886 }
887
888 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
889
890 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
891 const char *name, *old_owner, *new_owner;
892
893 if (!dbus_message_get_args(m, &err,
894 DBUS_TYPE_STRING, &name,
895 DBUS_TYPE_STRING, &old_owner,
896 DBUS_TYPE_STRING, &new_owner,
897 DBUS_TYPE_INVALID)) {
898 pa_log("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
899 goto fail;
900 }
901
902 if (pa_streq(name, "org.bluez")) {
903 if (old_owner && *old_owner) {
904 pa_log_debug("Bluetooth daemon disappeared.");
905 remove_all_devices(y);
906 }
907
908 if (new_owner && *new_owner) {
909 pa_log_debug("Bluetooth daemon appeared.");
910 list_adapters(y);
911 }
912 }
913
914 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
915 } else if (dbus_message_is_signal(m, "org.bluez.MediaTransport", "PropertyChanged")) {
916 pa_bluetooth_device *d;
917 pa_bluetooth_transport *t;
918 void *state = NULL;
919 DBusMessageIter arg_i;
920
921 while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
922 if ((t = pa_hashmap_get(d->transports, dbus_message_get_path(m))))
923 break;
924
925 if (!t)
926 goto fail;
927
928 if (!dbus_message_iter_init(m, &arg_i)) {
929 pa_log("Failed to parse PropertyChanged: %s", err.message);
930 goto fail;
931 }
932
933 if (pa_bluetooth_transport_parse_property(t, &arg_i) < 0)
934 goto fail;
935
936 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
937 }
938
939 fail:
940 dbus_error_free(&err);
941
942 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
943 }
944
945 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_address(pa_bluetooth_discovery *y, const char* address) {
946 pa_bluetooth_device *d;
947 void *state = NULL;
948
949 pa_assert(y);
950 pa_assert(PA_REFCNT_VALUE(y) > 0);
951 pa_assert(address);
952
953 if (!pa_hook_is_firing(&y->hook))
954 pa_bluetooth_discovery_sync(y);
955
956 while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
957 if (pa_streq(d->address, address))
958 return device_is_audio(d) ? d : NULL;
959
960 return NULL;
961 }
962
963 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_path(pa_bluetooth_discovery *y, const char* path) {
964 pa_bluetooth_device *d;
965
966 pa_assert(y);
967 pa_assert(PA_REFCNT_VALUE(y) > 0);
968 pa_assert(path);
969
970 if (!pa_hook_is_firing(&y->hook))
971 pa_bluetooth_discovery_sync(y);
972
973 if ((d = pa_hashmap_get(y->devices, path)))
974 if (device_is_audio(d))
975 return d;
976
977 return NULL;
978 }
979
980 const pa_bluetooth_transport* pa_bluetooth_discovery_get_transport(pa_bluetooth_discovery *y, const char *path) {
981 pa_bluetooth_device *d;
982 pa_bluetooth_transport *t;
983 void *state = NULL;
984
985 pa_assert(y);
986 pa_assert(PA_REFCNT_VALUE(y) > 0);
987 pa_assert(path);
988
989 while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
990 if ((t = pa_hashmap_get(d->transports, path)))
991 return t;
992
993 return NULL;
994 }
995
996 const pa_bluetooth_transport* pa_bluetooth_device_get_transport(const pa_bluetooth_device *d, enum profile profile) {
997 pa_bluetooth_transport *t;
998 void *state = NULL;
999
1000 pa_assert(d);
1001
1002 while ((t = pa_hashmap_iterate(d->transports, &state, NULL)))
1003 if (t->profile == profile)
1004 return t;
1005
1006 return NULL;
1007 }
1008
1009 int pa_bluetooth_transport_acquire(const pa_bluetooth_transport *t, const char *accesstype, size_t *imtu, size_t *omtu) {
1010 DBusMessage *m, *r;
1011 DBusError err;
1012 int ret;
1013 uint16_t i, o;
1014
1015 pa_assert(t);
1016 pa_assert(t->y);
1017
1018 dbus_error_init(&err);
1019
1020 pa_assert_se(m = dbus_message_new_method_call("org.bluez", t->path, "org.bluez.MediaTransport", "Acquire"));
1021 pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_STRING, &accesstype, DBUS_TYPE_INVALID));
1022 r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->y->connection), m, -1, &err);
1023
1024 if (dbus_error_is_set(&err) || !r) {
1025 pa_log("Failed to acquire transport fd: %s", err.message);
1026 dbus_error_free(&err);
1027 return -1;
1028 }
1029
1030 #ifdef DBUS_TYPE_UNIX_FD
1031 if (!dbus_message_get_args(r, &err, DBUS_TYPE_UNIX_FD, &ret, DBUS_TYPE_UINT16, &i, DBUS_TYPE_UINT16, &o, DBUS_TYPE_INVALID)) {
1032 pa_log("Failed to parse org.bluez.MediaTransport.Acquire(): %s", err.message);
1033 ret = -1;
1034 dbus_error_free(&err);
1035 goto fail;
1036 }
1037 #endif
1038
1039 if (imtu)
1040 *imtu = i;
1041
1042 if (omtu)
1043 *omtu = o;
1044
1045 #ifdef DBUS_TYPE_UNIX_FD
1046 fail:
1047 #endif
1048 dbus_message_unref(r);
1049 return ret;
1050 }
1051
1052 void pa_bluetooth_transport_release(const pa_bluetooth_transport *t, const char *accesstype) {
1053 DBusMessage *m;
1054 DBusError err;
1055
1056 pa_assert(t);
1057 pa_assert(t->y);
1058
1059 dbus_error_init(&err);
1060
1061 pa_assert_se(m = dbus_message_new_method_call("org.bluez", t->path, "org.bluez.MediaTransport", "Release"));
1062 pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_STRING, &accesstype, DBUS_TYPE_INVALID));
1063 dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->y->connection), m, -1, &err);
1064
1065 if (dbus_error_is_set(&err)) {
1066 pa_log("Failed to release transport %s: %s", t->path, err.message);
1067 dbus_error_free(&err);
1068 } else
1069 pa_log_info("Transport %s released", t->path);
1070 }
1071
1072 static int setup_dbus(pa_bluetooth_discovery *y) {
1073 DBusError err;
1074
1075 dbus_error_init(&err);
1076
1077 y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err);
1078
1079 if (dbus_error_is_set(&err) || !y->connection) {
1080 pa_log("Failed to get D-Bus connection: %s", err.message);
1081 dbus_error_free(&err);
1082 return -1;
1083 }
1084
1085 return 0;
1086 }
1087
1088 #ifdef DBUS_TYPE_UNIX_FD
1089 static pa_bluetooth_transport *transport_new(pa_bluetooth_discovery *y, const char *path, enum profile p, const uint8_t *config, int size) {
1090 pa_bluetooth_transport *t;
1091
1092 t = pa_xnew0(pa_bluetooth_transport, 1);
1093 t->y = y;
1094 t->path = pa_xstrdup(path);
1095 t->profile = p;
1096 t->config_size = size;
1097
1098 if (size > 0) {
1099 t->config = pa_xnew(uint8_t, size);
1100 memcpy(t->config, config, size);
1101 }
1102
1103 return t;
1104 }
1105
1106 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1107 pa_bluetooth_discovery *y = userdata;
1108 pa_bluetooth_device *d;
1109 pa_bluetooth_transport *t;
1110 const char *path, *dev_path = NULL, *uuid = NULL;
1111 uint8_t *config = NULL;
1112 int size = 0;
1113 pa_bool_t nrec;
1114 enum profile p;
1115 DBusMessageIter args, props;
1116 DBusMessage *r;
1117
1118 dbus_message_iter_init(m, &args);
1119
1120 dbus_message_iter_get_basic(&args, &path);
1121 if (!dbus_message_iter_next(&args))
1122 goto fail;
1123
1124 dbus_message_iter_recurse(&args, &props);
1125 if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
1126 goto fail;
1127
1128 /* Read transport properties */
1129 while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
1130 const char *key;
1131 DBusMessageIter value, entry;
1132 int var;
1133
1134 dbus_message_iter_recurse(&props, &entry);
1135 dbus_message_iter_get_basic(&entry, &key);
1136
1137 dbus_message_iter_next(&entry);
1138 dbus_message_iter_recurse(&entry, &value);
1139
1140 var = dbus_message_iter_get_arg_type(&value);
1141 if (strcasecmp(key, "UUID") == 0) {
1142 if (var != DBUS_TYPE_STRING)
1143 goto fail;
1144 dbus_message_iter_get_basic(&value, &uuid);
1145 } else if (strcasecmp(key, "Device") == 0) {
1146 if (var != DBUS_TYPE_OBJECT_PATH)
1147 goto fail;
1148 dbus_message_iter_get_basic(&value, &dev_path);
1149 } else if (strcasecmp(key, "NREC") == 0) {
1150 if (var != DBUS_TYPE_BOOLEAN)
1151 goto fail;
1152 dbus_message_iter_get_basic(&value, &nrec);
1153 } else if (strcasecmp(key, "Configuration") == 0) {
1154 DBusMessageIter array;
1155 if (var != DBUS_TYPE_ARRAY)
1156 goto fail;
1157 dbus_message_iter_recurse(&value, &array);
1158 dbus_message_iter_get_fixed_array(&array, &config, &size);
1159 }
1160
1161 dbus_message_iter_next(&props);
1162 }
1163
1164 d = found_device(y, dev_path);
1165 if (!d)
1166 goto fail;
1167
1168 if (dbus_message_has_path(m, HFP_AG_ENDPOINT))
1169 p = PROFILE_HSP;
1170 else if (dbus_message_has_path(m, A2DP_SOURCE_ENDPOINT))
1171 p = PROFILE_A2DP;
1172 else
1173 p = PROFILE_A2DP_SOURCE;
1174
1175 t = transport_new(y, path, p, config, size);
1176 if (nrec)
1177 t->nrec = nrec;
1178 pa_hashmap_put(d->transports, t->path, t);
1179
1180 pa_log_debug("Transport %s profile %d available", t->path, t->profile);
1181
1182 pa_assert_se(r = dbus_message_new_method_return(m));
1183
1184 return r;
1185
1186 fail:
1187 pa_log("org.bluez.MediaEndpoint.SetConfiguration: invalid arguments");
1188 pa_assert_se(r = (dbus_message_new_error(m, "org.bluez.MediaEndpoint.Error.InvalidArguments",
1189 "Unable to set configuration")));
1190 return r;
1191 }
1192
1193 static DBusMessage *endpoint_clear_configuration(DBusConnection *c, DBusMessage *m, void *userdata) {
1194 pa_bluetooth_discovery *y = userdata;
1195 pa_bluetooth_device *d;
1196 pa_bluetooth_transport *t;
1197 void *state = NULL;
1198 DBusMessage *r;
1199 DBusError e;
1200 const char *path;
1201
1202 dbus_error_init(&e);
1203
1204 if (!dbus_message_get_args(m, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
1205 pa_log("org.bluez.MediaEndpoint.ClearConfiguration: %s", e.message);
1206 dbus_error_free(&e);
1207 goto fail;
1208 }
1209
1210 while ((d = pa_hashmap_iterate(y->devices, &state, NULL))) {
1211 if ((t = pa_hashmap_get(d->transports, path))) {
1212 pa_log_debug("Clearing transport %s profile %d", t->path, t->profile);
1213 pa_hashmap_remove(d->transports, t->path);
1214 transport_free(t);
1215 break;
1216 }
1217 }
1218
1219 pa_assert_se(r = dbus_message_new_method_return(m));
1220
1221 return r;
1222
1223 fail:
1224 pa_assert_se(r = (dbus_message_new_error(m, "org.bluez.MediaEndpoint.Error.InvalidArguments",
1225 "Unable to clear configuration")));
1226 return r;
1227 }
1228
1229 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
1230
1231 switch (freq) {
1232 case BT_SBC_SAMPLING_FREQ_16000:
1233 case BT_SBC_SAMPLING_FREQ_32000:
1234 return 53;
1235
1236 case BT_SBC_SAMPLING_FREQ_44100:
1237
1238 switch (mode) {
1239 case BT_A2DP_CHANNEL_MODE_MONO:
1240 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
1241 return 31;
1242
1243 case BT_A2DP_CHANNEL_MODE_STEREO:
1244 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
1245 return 53;
1246
1247 default:
1248 pa_log_warn("Invalid channel mode %u", mode);
1249 return 53;
1250 }
1251
1252 case BT_SBC_SAMPLING_FREQ_48000:
1253
1254 switch (mode) {
1255 case BT_A2DP_CHANNEL_MODE_MONO:
1256 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
1257 return 29;
1258
1259 case BT_A2DP_CHANNEL_MODE_STEREO:
1260 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
1261 return 51;
1262
1263 default:
1264 pa_log_warn("Invalid channel mode %u", mode);
1265 return 51;
1266 }
1267
1268 default:
1269 pa_log_warn("Invalid sampling freq %u", freq);
1270 return 53;
1271 }
1272 }
1273
1274 static DBusMessage *endpoint_select_configuration(DBusConnection *c, DBusMessage *m, void *userdata) {
1275 pa_bluetooth_discovery *y = userdata;
1276 a2dp_sbc_t *cap, config;
1277 uint8_t *pconf = (uint8_t *) &config;
1278 int i, size;
1279 DBusMessage *r;
1280 DBusError e;
1281
1282 static const struct {
1283 uint32_t rate;
1284 uint8_t cap;
1285 } freq_table[] = {
1286 { 16000U, BT_SBC_SAMPLING_FREQ_16000 },
1287 { 32000U, BT_SBC_SAMPLING_FREQ_32000 },
1288 { 44100U, BT_SBC_SAMPLING_FREQ_44100 },
1289 { 48000U, BT_SBC_SAMPLING_FREQ_48000 }
1290 };
1291
1292 dbus_error_init(&e);
1293
1294 if (!dbus_message_get_args(m, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &cap, &size, DBUS_TYPE_INVALID)) {
1295 pa_log("org.bluez.MediaEndpoint.SelectConfiguration: %s", e.message);
1296 dbus_error_free(&e);
1297 goto fail;
1298 }
1299
1300 if (dbus_message_has_path(m, HFP_AG_ENDPOINT))
1301 goto done;
1302
1303 pa_assert(size == sizeof(config));
1304
1305 memset(&config, 0, sizeof(config));
1306
1307 /* Find the lowest freq that is at least as high as the requested
1308 * sampling rate */
1309 for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
1310 if (freq_table[i].rate >= y->core->default_sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
1311 config.frequency = freq_table[i].cap;
1312 break;
1313 }
1314
1315 if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
1316 for (--i; i >= 0; i--) {
1317 if (cap->frequency & freq_table[i].cap) {
1318 config.frequency = freq_table[i].cap;
1319 break;
1320 }
1321 }
1322
1323 if (i < 0) {
1324 pa_log("Not suitable sample rate");
1325 goto fail;
1326 }
1327 }
1328
1329 pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
1330
1331 if (y->core->default_sample_spec.channels <= 1) {
1332 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
1333 config.channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
1334 }
1335
1336 if (y->core->default_sample_spec.channels >= 2) {
1337 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
1338 config.channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
1339 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
1340 config.channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
1341 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
1342 config.channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
1343 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
1344 config.channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
1345 } else {
1346 pa_log("No supported channel modes");
1347 goto fail;
1348 }
1349 }
1350
1351 if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
1352 config.block_length = BT_A2DP_BLOCK_LENGTH_16;
1353 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
1354 config.block_length = BT_A2DP_BLOCK_LENGTH_12;
1355 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
1356 config.block_length = BT_A2DP_BLOCK_LENGTH_8;
1357 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
1358 config.block_length = BT_A2DP_BLOCK_LENGTH_4;
1359 else {
1360 pa_log_error("No supported block lengths");
1361 goto fail;
1362 }
1363
1364 if (cap->subbands & BT_A2DP_SUBBANDS_8)
1365 config.subbands = BT_A2DP_SUBBANDS_8;
1366 else if (cap->subbands & BT_A2DP_SUBBANDS_4)
1367 config.subbands = BT_A2DP_SUBBANDS_4;
1368 else {
1369 pa_log_error("No supported subbands");
1370 goto fail;
1371 }
1372
1373 if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
1374 config.allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
1375 else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
1376 config.allocation_method = BT_A2DP_ALLOCATION_SNR;
1377
1378 config.min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
1379 config.max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(config.frequency, config.channel_mode), cap->max_bitpool);
1380
1381 done:
1382 pa_assert_se(r = dbus_message_new_method_return(m));
1383
1384 pa_assert_se(dbus_message_append_args(
1385 r,
1386 DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &pconf, size,
1387 DBUS_TYPE_INVALID));
1388
1389 return r;
1390
1391 fail:
1392 pa_assert_se(r = (dbus_message_new_error(m, "org.bluez.MediaEndpoint.Error.InvalidArguments",
1393 "Unable to select configuration")));
1394 return r;
1395 }
1396
1397 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
1398 struct pa_bluetooth_discovery *y = userdata;
1399 DBusMessage *r = NULL;
1400 DBusError e;
1401 const char *path;
1402
1403 pa_assert(y);
1404
1405 pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
1406 dbus_message_get_interface(m),
1407 dbus_message_get_path(m),
1408 dbus_message_get_member(m));
1409
1410 path = dbus_message_get_path(m);
1411 dbus_error_init(&e);
1412
1413 if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT) && !pa_streq(path, HFP_AG_ENDPOINT))
1414 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1415
1416 if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1417 const char *xml = ENDPOINT_INTROSPECT_XML;
1418
1419 pa_assert_se(r = dbus_message_new_method_return(m));
1420 pa_assert_se(dbus_message_append_args(
1421 r,
1422 DBUS_TYPE_STRING, &xml,
1423 DBUS_TYPE_INVALID));
1424
1425 } else if (dbus_message_is_method_call(m, "org.bluez.MediaEndpoint", "SetConfiguration")) {
1426 r = endpoint_set_configuration(c, m, userdata);
1427 } else if (dbus_message_is_method_call(m, "org.bluez.MediaEndpoint", "SelectConfiguration")) {
1428 r = endpoint_select_configuration(c, m, userdata);
1429 } else if (dbus_message_is_method_call(m, "org.bluez.MediaEndpoint", "ClearConfiguration"))
1430 r = endpoint_clear_configuration(c, m, userdata);
1431 else
1432 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1433
1434 if (r) {
1435 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1436 dbus_message_unref(r);
1437 }
1438
1439 return DBUS_HANDLER_RESULT_HANDLED;
1440 }
1441 #endif /* DBUS_TYPE_UNIX_FD */
1442
1443 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
1444 DBusError err;
1445 pa_bluetooth_discovery *y;
1446 #ifdef DBUS_TYPE_UNIX_FD
1447 static const DBusObjectPathVTable vtable_endpoint = {
1448 .message_function = endpoint_handler,
1449 };
1450 #endif
1451
1452 pa_assert(c);
1453
1454 dbus_error_init(&err);
1455
1456 if ((y = pa_shared_get(c, "bluetooth-discovery")))
1457 return pa_bluetooth_discovery_ref(y);
1458
1459 y = pa_xnew0(pa_bluetooth_discovery, 1);
1460 PA_REFCNT_INIT(y);
1461 y->core = c;
1462 y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1463 PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
1464 pa_hook_init(&y->hook, y);
1465 pa_shared_set(c, "bluetooth-discovery", y);
1466
1467 if (setup_dbus(y) < 0)
1468 goto fail;
1469
1470 /* dynamic detection of bluetooth audio devices */
1471 if (!dbus_connection_add_filter(pa_dbus_connection_get(y->connection), filter_cb, y, NULL)) {
1472 pa_log_error("Failed to add filter function");
1473 goto fail;
1474 }
1475 y->filter_added = TRUE;
1476
1477 if (pa_dbus_add_matches(
1478 pa_dbus_connection_get(y->connection), &err,
1479 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.bluez'",
1480 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
1481 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
1482 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
1483 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
1484 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='DisconnectRequested'",
1485 "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
1486 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
1487 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'",
1488 "type='signal',sender='org.bluez',interface='org.bluez.AudioSource',member='PropertyChanged'",
1489 "type='signal',sender='org.bluez',interface='org.bluez.HandsfreeGateway',member='PropertyChanged'",
1490 "type='signal',sender='org.bluez',interface='org.bluez.MediaTransport',member='PropertyChanged'",
1491 NULL) < 0) {
1492 pa_log("Failed to add D-Bus matches: %s", err.message);
1493 goto fail;
1494 }
1495
1496 #ifdef DBUS_TYPE_UNIX_FD
1497 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), HFP_AG_ENDPOINT, &vtable_endpoint, y));
1498 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT, &vtable_endpoint, y));
1499 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT, &vtable_endpoint, y));
1500 #endif
1501
1502 list_adapters(y);
1503
1504 return y;
1505
1506 fail:
1507
1508 if (y)
1509 pa_bluetooth_discovery_unref(y);
1510
1511 dbus_error_free(&err);
1512
1513 return NULL;
1514 }
1515
1516 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
1517 pa_assert(y);
1518 pa_assert(PA_REFCNT_VALUE(y) > 0);
1519
1520 PA_REFCNT_INC(y);
1521
1522 return y;
1523 }
1524
1525 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
1526 pa_assert(y);
1527 pa_assert(PA_REFCNT_VALUE(y) > 0);
1528
1529 if (PA_REFCNT_DEC(y) > 0)
1530 return;
1531
1532 pa_dbus_free_pending_list(&y->pending);
1533
1534 if (y->devices) {
1535 remove_all_devices(y);
1536 pa_hashmap_free(y->devices, NULL, NULL);
1537 }
1538
1539 if (y->connection) {
1540 #ifdef DBUS_TYPE_UNIX_FD
1541 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), HFP_AG_ENDPOINT);
1542 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
1543 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
1544 #endif
1545 pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
1546 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.bluez'",
1547 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
1548 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
1549 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
1550 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
1551 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
1552 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='DisconnectRequested'",
1553 "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
1554 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
1555 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'",
1556 "type='signal',sender='org.bluez',interface='org.bluez.AudioSource',member='PropertyChanged'",
1557 "type='signal',sender='org.bluez',interface='org.bluez.HandsfreeGateway',member='PropertyChanged'",
1558 "type='signal',sender='org.bluez',interface='org.bluez.MediaTransport',member='PropertyChanged'",
1559 NULL);
1560
1561 if (y->filter_added)
1562 dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1563
1564 pa_dbus_connection_unref(y->connection);
1565 }
1566
1567 pa_hook_done(&y->hook);
1568
1569 if (y->core)
1570 pa_shared_remove(y->core, "bluetooth-discovery");
1571
1572 pa_xfree(y);
1573 }
1574
1575 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
1576 pa_assert(y);
1577 pa_assert(PA_REFCNT_VALUE(y) > 0);
1578
1579 pa_dbus_sync_pending_list(&y->pending);
1580 }
1581
1582 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y) {
1583 pa_assert(y);
1584 pa_assert(PA_REFCNT_VALUE(y) > 0);
1585
1586 return &y->hook;
1587 }
1588
1589 const char*pa_bluetooth_get_form_factor(uint32_t class) {
1590 unsigned i;
1591 const char *r;
1592
1593 static const char * const table[] = {
1594 [1] = "headset",
1595 [2] = "hands-free",
1596 [4] = "microphone",
1597 [5] = "speaker",
1598 [6] = "headphone",
1599 [7] = "portable",
1600 [8] = "car",
1601 [10] = "hifi"
1602 };
1603
1604 if (((class >> 8) & 31) != 4)
1605 return NULL;
1606
1607 if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
1608 r = NULL;
1609 else
1610 r = table[i];
1611
1612 if (!r)
1613 pa_log_debug("Unknown Bluetooth minor device class %u", i);
1614
1615 return r;
1616 }
1617
1618 char *pa_bluetooth_cleanup_name(const char *name) {
1619 char *t, *s, *d;
1620 pa_bool_t space = FALSE;
1621
1622 pa_assert(name);
1623
1624 while ((*name >= 1 && *name <= 32) || *name >= 127)
1625 name++;
1626
1627 t = pa_xstrdup(name);
1628
1629 for (s = d = t; *s; s++) {
1630
1631 if (*s <= 32 || *s >= 127 || *s == '_') {
1632 space = TRUE;
1633 continue;
1634 }
1635
1636 if (space) {
1637 *(d++) = ' ';
1638 space = FALSE;
1639 }
1640
1641 *(d++) = *s;
1642 }
1643
1644 *d = 0;
1645
1646 return t;
1647 }
1648
1649 pa_bool_t pa_bluetooth_uuid_has(pa_bluetooth_uuid *uuids, const char *uuid) {
1650 pa_assert(uuid);
1651
1652 while (uuids) {
1653 if (strcasecmp(uuids->uuid, uuid) == 0)
1654 return TRUE;
1655
1656 uuids = uuids->next;
1657 }
1658
1659 return FALSE;
1660 }