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bluetooth: Remove a redundant variable
[pulseaudio] / src / modules / bluetooth / bluez5-util.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2008-2013 João 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 <pulse/xmalloc.h>
27
28 #include <pulsecore/core.h>
29 #include <pulsecore/core-util.h>
30 #include <pulsecore/dbus-shared.h>
31 #include <pulsecore/log.h>
32 #include <pulsecore/macro.h>
33 #include <pulsecore/refcnt.h>
34 #include <pulsecore/shared.h>
35
36 #include "a2dp-codecs.h"
37
38 #include "bluez5-util.h"
39
40 #define BLUEZ_SERVICE "org.bluez"
41 #define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter1"
42 #define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device1"
43 #define BLUEZ_MEDIA_INTERFACE BLUEZ_SERVICE ".Media1"
44 #define BLUEZ_MEDIA_ENDPOINT_INTERFACE BLUEZ_SERVICE ".MediaEndpoint1"
45 #define BLUEZ_MEDIA_TRANSPORT_INTERFACE BLUEZ_SERVICE ".MediaTransport1"
46
47 #define BLUEZ_ERROR_NOT_SUPPORTED "org.bluez.Error.NotSupported"
48
49 #define A2DP_SOURCE_ENDPOINT "/MediaEndpoint/A2DPSource"
50 #define A2DP_SINK_ENDPOINT "/MediaEndpoint/A2DPSink"
51
52 #define ENDPOINT_INTROSPECT_XML \
53 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
54 "<node>" \
55 " <interface name=\"" BLUEZ_MEDIA_ENDPOINT_INTERFACE "\">" \
56 " <method name=\"SetConfiguration\">" \
57 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
58 " <arg name=\"properties\" direction=\"in\" type=\"ay\"/>" \
59 " </method>" \
60 " <method name=\"SelectConfiguration\">" \
61 " <arg name=\"capabilities\" direction=\"in\" type=\"ay\"/>" \
62 " <arg name=\"configuration\" direction=\"out\" type=\"ay\"/>" \
63 " </method>" \
64 " <method name=\"ClearConfiguration\">" \
65 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
66 " </method>" \
67 " <method name=\"Release\">" \
68 " </method>" \
69 " </interface>" \
70 " <interface name=\"org.freedesktop.DBus.Introspectable\">" \
71 " <method name=\"Introspect\">" \
72 " <arg name=\"data\" type=\"s\" direction=\"out\"/>" \
73 " </method>" \
74 " </interface>" \
75 "</node>"
76
77 struct pa_bluetooth_discovery {
78 PA_REFCNT_DECLARE;
79
80 pa_core *core;
81 pa_dbus_connection *connection;
82 bool filter_added;
83 bool matches_added;
84 bool objects_listed;
85 pa_hook hooks[PA_BLUETOOTH_HOOK_MAX];
86 pa_hashmap *adapters;
87 pa_hashmap *devices;
88 pa_hashmap *transports;
89
90 PA_LLIST_HEAD(pa_dbus_pending, pending);
91 };
92
93 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, DBusMessage *m,
94 DBusPendingCallNotifyFunction func, void *call_data) {
95 pa_dbus_pending *p;
96 DBusPendingCall *call;
97
98 pa_assert(y);
99 pa_assert(m);
100
101 pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
102
103 p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, call_data);
104 PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
105 dbus_pending_call_set_notify(call, func, p, NULL);
106
107 return p;
108 }
109
110 static const char *check_variant_property(DBusMessageIter *i) {
111 const char *key;
112
113 pa_assert(i);
114
115 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
116 pa_log_error("Property name not a string.");
117 return NULL;
118 }
119
120 dbus_message_iter_get_basic(i, &key);
121
122 if (!dbus_message_iter_next(i)) {
123 pa_log_error("Property value missing");
124 return NULL;
125 }
126
127 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
128 pa_log_error("Property value not a variant.");
129 return NULL;
130 }
131
132 return key;
133 }
134
135 pa_bluetooth_transport *pa_bluetooth_transport_new(pa_bluetooth_device *d, const char *owner, const char *path,
136 pa_bluetooth_profile_t p, const uint8_t *config, size_t size) {
137 pa_bluetooth_transport *t;
138
139 t = pa_xnew0(pa_bluetooth_transport, 1);
140 t->device = d;
141 t->owner = pa_xstrdup(owner);
142 t->path = pa_xstrdup(path);
143 t->profile = p;
144 t->config_size = size;
145
146 if (size > 0) {
147 t->config = pa_xnew(uint8_t, size);
148 memcpy(t->config, config, size);
149 }
150
151 pa_assert_se(pa_hashmap_put(d->discovery->transports, t->path, t) >= 0);
152
153 return t;
154 }
155
156 static const char *transport_state_to_string(pa_bluetooth_transport_state_t state) {
157 switch(state) {
158 case PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED:
159 return "disconnected";
160 case PA_BLUETOOTH_TRANSPORT_STATE_IDLE:
161 return "idle";
162 case PA_BLUETOOTH_TRANSPORT_STATE_PLAYING:
163 return "playing";
164 }
165
166 return "invalid";
167 }
168
169 static void transport_state_changed(pa_bluetooth_transport *t, pa_bluetooth_transport_state_t state) {
170 bool old_any_connected;
171
172 pa_assert(t);
173
174 if (t->state == state)
175 return;
176
177 old_any_connected = pa_bluetooth_device_any_transport_connected(t->device);
178
179 pa_log_debug("Transport %s state changed from %s to %s",
180 t->path, transport_state_to_string(t->state), transport_state_to_string(state));
181
182 t->state = state;
183 if (state == PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED)
184 t->device->transports[t->profile] = NULL;
185
186 pa_hook_fire(&t->device->discovery->hooks[PA_BLUETOOTH_HOOK_TRANSPORT_STATE_CHANGED], t);
187
188 if (old_any_connected != pa_bluetooth_device_any_transport_connected(t->device))
189 pa_hook_fire(&t->device->discovery->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], t->device);
190 }
191
192 void pa_bluetooth_transport_put(pa_bluetooth_transport *t) {
193 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_IDLE);
194 }
195
196 void pa_bluetooth_transport_free(pa_bluetooth_transport *t) {
197 pa_assert(t);
198
199 pa_hashmap_remove(t->device->discovery->transports, t->path);
200 pa_xfree(t->owner);
201 pa_xfree(t->path);
202 pa_xfree(t->config);
203 pa_xfree(t);
204 }
205
206 static int bluez5_transport_acquire_cb(pa_bluetooth_transport *t, bool optional, size_t *imtu, size_t *omtu) {
207 DBusMessage *m, *r;
208 DBusError err;
209 int ret;
210 uint16_t i, o;
211 const char *method = optional ? "TryAcquire" : "Acquire";
212
213 pa_assert(t);
214 pa_assert(t->device);
215 pa_assert(t->device->discovery);
216
217 pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, BLUEZ_MEDIA_TRANSPORT_INTERFACE, method));
218
219 dbus_error_init(&err);
220
221 r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection), m, -1, &err);
222 if (!r) {
223 if (optional && pa_streq(err.name, "org.bluez.Error.NotAvailable"))
224 pa_log_info("Failed optional acquire of unavailable transport %s", t->path);
225 else
226 pa_log_error("Transport %s() failed for transport %s (%s)", method, t->path, err.message);
227
228 dbus_error_free(&err);
229 return -1;
230 }
231
232 if (!dbus_message_get_args(r, &err, DBUS_TYPE_UNIX_FD, &ret, DBUS_TYPE_UINT16, &i, DBUS_TYPE_UINT16, &o,
233 DBUS_TYPE_INVALID)) {
234 pa_log_error("Failed to parse %s() reply: %s", method, err.message);
235 dbus_error_free(&err);
236 ret = -1;
237 goto finish;
238 }
239
240 if (imtu)
241 *imtu = i;
242
243 if (omtu)
244 *omtu = o;
245
246 finish:
247 dbus_message_unref(r);
248 return ret;
249 }
250
251 static void bluez5_transport_release_cb(pa_bluetooth_transport *t) {
252 DBusMessage *m;
253 DBusError err;
254
255 pa_assert(t);
256 pa_assert(t->device);
257 pa_assert(t->device->discovery);
258
259 dbus_error_init(&err);
260
261 if (t->state <= PA_BLUETOOTH_TRANSPORT_STATE_IDLE) {
262 pa_log_info("Transport %s auto-released by BlueZ or already released", t->path);
263 return;
264 }
265
266 pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, BLUEZ_MEDIA_TRANSPORT_INTERFACE, "Release"));
267 dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection), m, -1, &err);
268
269 if (dbus_error_is_set(&err)) {
270 pa_log_error("Failed to release transport %s: %s", t->path, err.message);
271 dbus_error_free(&err);
272 } else
273 pa_log_info("Transport %s released", t->path);
274 }
275
276 bool pa_bluetooth_device_any_transport_connected(const pa_bluetooth_device *d) {
277 unsigned i;
278
279 pa_assert(d);
280
281 if (d->device_info_valid != 1)
282 return false;
283
284 for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++)
285 if (d->transports[i] && d->transports[i]->state != PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED)
286 return true;
287
288 return false;
289 }
290
291 static int transport_state_from_string(const char* value, pa_bluetooth_transport_state_t *state) {
292 pa_assert(value);
293 pa_assert(state);
294
295 if (pa_streq(value, "idle"))
296 *state = PA_BLUETOOTH_TRANSPORT_STATE_IDLE;
297 else if (pa_streq(value, "pending") || pa_streq(value, "active"))
298 *state = PA_BLUETOOTH_TRANSPORT_STATE_PLAYING;
299 else
300 return -1;
301
302 return 0;
303 }
304
305 static void parse_transport_property(pa_bluetooth_transport *t, DBusMessageIter *i) {
306 const char *key;
307 DBusMessageIter variant_i;
308
309 key = check_variant_property(i);
310 if (key == NULL)
311 return;
312
313 dbus_message_iter_recurse(i, &variant_i);
314
315 switch (dbus_message_iter_get_arg_type(&variant_i)) {
316
317 case DBUS_TYPE_STRING: {
318
319 const char *value;
320 dbus_message_iter_get_basic(&variant_i, &value);
321
322 if (pa_streq(key, "State")) {
323 pa_bluetooth_transport_state_t state;
324
325 if (transport_state_from_string(value, &state) < 0) {
326 pa_log_error("Invalid state received: %s", value);
327 return;
328 }
329
330 transport_state_changed(t, state);
331 }
332
333 break;
334 }
335 }
336
337 return;
338 }
339
340 static int parse_transport_properties(pa_bluetooth_transport *t, DBusMessageIter *i) {
341 DBusMessageIter element_i;
342
343 dbus_message_iter_recurse(i, &element_i);
344
345 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
346 DBusMessageIter dict_i;
347
348 dbus_message_iter_recurse(&element_i, &dict_i);
349
350 parse_transport_property(t, &dict_i);
351
352 dbus_message_iter_next(&element_i);
353 }
354
355 return 0;
356 }
357
358 static pa_bluetooth_device* device_create(pa_bluetooth_discovery *y, const char *path) {
359 pa_bluetooth_device *d;
360
361 pa_assert(y);
362 pa_assert(path);
363
364 d = pa_xnew0(pa_bluetooth_device, 1);
365 d->discovery = y;
366 d->path = pa_xstrdup(path);
367 d->uuids = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, pa_xfree);
368
369 pa_hashmap_put(y->devices, d->path, d);
370
371 return d;
372 }
373
374 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_discovery *y, const char *path) {
375 pa_bluetooth_device *d;
376
377 pa_assert(y);
378 pa_assert(PA_REFCNT_VALUE(y) > 0);
379 pa_assert(path);
380
381 if ((d = pa_hashmap_get(y->devices, path)))
382 if (d->device_info_valid == 1)
383 return d;
384
385 return NULL;
386 }
387
388 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery *y, const char *remote, const char *local) {
389 pa_bluetooth_device *d;
390 void *state = NULL;
391
392 pa_assert(y);
393 pa_assert(PA_REFCNT_VALUE(y) > 0);
394 pa_assert(remote);
395 pa_assert(local);
396
397 while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
398 if (pa_streq(d->address, remote) && pa_streq(d->adapter->address, local))
399 return d->device_info_valid == 1 ? d : NULL;
400
401 return NULL;
402 }
403
404 static void device_free(pa_bluetooth_device *d) {
405 unsigned i;
406
407 pa_assert(d);
408
409 for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++) {
410 pa_bluetooth_transport *t;
411
412 if (!(t = d->transports[i]))
413 continue;
414
415 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
416 pa_bluetooth_transport_free(t);
417 }
418
419 if (d->uuids)
420 pa_hashmap_free(d->uuids);
421
422 d->discovery = NULL;
423 d->adapter = NULL;
424 pa_xfree(d->path);
425 pa_xfree(d->alias);
426 pa_xfree(d->address);
427 pa_xfree(d);
428 }
429
430 static void device_remove(pa_bluetooth_discovery *y, const char *path) {
431 pa_bluetooth_device *d;
432
433 if (!(d = pa_hashmap_remove(y->devices, path)))
434 pa_log_warn("Unknown device removed %s", path);
435 else {
436 pa_log_debug("Device %s removed", path);
437 device_free(d);
438 }
439 }
440
441 static void device_remove_all(pa_bluetooth_discovery *y) {
442 pa_bluetooth_device *d;
443
444 pa_assert(y);
445
446 while ((d = pa_hashmap_steal_first(y->devices))) {
447 d->device_info_valid = -1;
448 pa_hook_fire(&y->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], d);
449 device_free(d);
450 }
451 }
452
453 static pa_bluetooth_adapter* adapter_create(pa_bluetooth_discovery *y, const char *path) {
454 pa_bluetooth_adapter *a;
455
456 pa_assert(y);
457 pa_assert(path);
458
459 a = pa_xnew0(pa_bluetooth_adapter, 1);
460 a->discovery = y;
461 a->path = pa_xstrdup(path);
462
463 pa_hashmap_put(y->adapters, a->path, a);
464
465 return a;
466 }
467
468 static void adapter_free(pa_bluetooth_adapter *a) {
469 pa_bluetooth_device *d;
470 void *state;
471
472 pa_assert(a);
473 pa_assert(a->discovery);
474
475 PA_HASHMAP_FOREACH(d, a->discovery->devices, state)
476 if (d->adapter == a)
477 d->adapter = NULL;
478
479 pa_xfree(a->path);
480 pa_xfree(a->address);
481 pa_xfree(a);
482 }
483
484 static void adapter_remove(pa_bluetooth_discovery *y, const char *path) {
485 pa_bluetooth_adapter *a;
486
487 if (!(a = pa_hashmap_remove(y->adapters, path)))
488 pa_log_warn("Unknown adapter removed %s", path);
489 else {
490 pa_log_debug("Adapter %s removed", path);
491 adapter_free(a);
492 }
493 }
494
495 static void parse_device_property(pa_bluetooth_device *d, DBusMessageIter *i, bool is_property_change) {
496 const char *key;
497 DBusMessageIter variant_i;
498
499 pa_assert(d);
500
501 key = check_variant_property(i);
502 if (key == NULL) {
503 pa_log_error("Received invalid property for device %s", d->path);
504 return;
505 }
506
507 dbus_message_iter_recurse(i, &variant_i);
508
509 switch (dbus_message_iter_get_arg_type(&variant_i)) {
510
511 case DBUS_TYPE_STRING: {
512 const char *value;
513 dbus_message_iter_get_basic(&variant_i, &value);
514
515 if (pa_streq(key, "Alias")) {
516 pa_xfree(d->alias);
517 d->alias = pa_xstrdup(value);
518 pa_log_debug("%s: %s", key, value);
519 } else if (pa_streq(key, "Address")) {
520 if (is_property_change) {
521 pa_log_warn("Device property 'Address' expected to be constant but changed for %s, ignoring", d->path);
522 return;
523 }
524
525 if (d->address) {
526 pa_log_warn("Device %s: Received a duplicate 'Address' property, ignoring", d->path);
527 return;
528 }
529
530 d->address = pa_xstrdup(value);
531 pa_log_debug("%s: %s", key, value);
532 }
533
534 break;
535 }
536
537 case DBUS_TYPE_OBJECT_PATH: {
538 const char *value;
539 dbus_message_iter_get_basic(&variant_i, &value);
540
541 if (pa_streq(key, "Adapter")) {
542
543 if (is_property_change) {
544 pa_log_warn("Device property 'Adapter' expected to be constant but changed for %s, ignoring", d->path);
545 return;
546 }
547
548 if (d->adapter_path) {
549 pa_log_warn("Device %s: Received a duplicate 'Adapter' property, ignoring", d->path);
550 return;
551 }
552
553 d->adapter_path = pa_xstrdup(value);
554
555 d->adapter = pa_hashmap_get(d->discovery->adapters, value);
556 if (!d->adapter)
557 pa_log_info("Device %s: 'Adapter' property references an unknown adapter %s.", d->path, value);
558
559 pa_log_debug("%s: %s", key, value);
560 }
561
562 break;
563 }
564
565 case DBUS_TYPE_UINT32: {
566 uint32_t value;
567 dbus_message_iter_get_basic(&variant_i, &value);
568
569 if (pa_streq(key, "Class")) {
570 d->class_of_device = value;
571 pa_log_debug("%s: %d", key, value);
572 }
573
574 break;
575 }
576
577 case DBUS_TYPE_ARRAY: {
578 DBusMessageIter ai;
579 dbus_message_iter_recurse(&variant_i, &ai);
580
581 if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING && pa_streq(key, "UUIDs")) {
582 /* bluetoothd never removes UUIDs from a device object so there
583 * is no need to handle it here. */
584 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
585 const char *value;
586 char *uuid;
587
588 dbus_message_iter_get_basic(&ai, &value);
589
590 if (pa_hashmap_get(d->uuids, value)) {
591 dbus_message_iter_next(&ai);
592 continue;
593 }
594
595 uuid = pa_xstrdup(value);
596 pa_hashmap_put(d->uuids, uuid, uuid);
597
598 pa_log_debug("%s: %s", key, value);
599 dbus_message_iter_next(&ai);
600 }
601 }
602
603 break;
604 }
605 }
606 }
607
608 static int parse_device_properties(pa_bluetooth_device *d, DBusMessageIter *i, bool is_property_change) {
609 DBusMessageIter element_i;
610
611 dbus_message_iter_recurse(i, &element_i);
612
613 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
614 DBusMessageIter dict_i;
615
616 dbus_message_iter_recurse(&element_i, &dict_i);
617 parse_device_property(d, &dict_i, is_property_change);
618 dbus_message_iter_next(&element_i);
619 }
620
621 if (!d->address || !d->adapter_path || !d->alias) {
622 pa_log_error("Non-optional information missing for device %s", d->path);
623 d->device_info_valid = -1;
624 return -1;
625 }
626
627 d->device_info_valid = 1;
628 return 0;
629 }
630
631 static void parse_adapter_properties(pa_bluetooth_adapter *a, DBusMessageIter *i, bool is_property_change) {
632 DBusMessageIter element_i;
633
634 pa_assert(a);
635
636 dbus_message_iter_recurse(i, &element_i);
637
638 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
639 DBusMessageIter dict_i, variant_i;
640 const char *key;
641
642 dbus_message_iter_recurse(&element_i, &dict_i);
643
644 key = check_variant_property(&dict_i);
645 if (key == NULL) {
646 pa_log_error("Received invalid property for adapter %s", a->path);
647 return;
648 }
649
650 dbus_message_iter_recurse(&dict_i, &variant_i);
651
652 if (dbus_message_iter_get_arg_type(&variant_i) == DBUS_TYPE_STRING && pa_streq(key, "Address")) {
653 const char *value;
654
655 if (is_property_change) {
656 pa_log_warn("Adapter property 'Address' expected to be constant but changed for %s, ignoring", a->path);
657 return;
658 }
659
660 if (a->address) {
661 pa_log_warn("Adapter %s received a duplicate 'Address' property, ignoring", a->path);
662 return;
663 }
664
665 dbus_message_iter_get_basic(&variant_i, &value);
666 a->address = pa_xstrdup(value);
667 }
668
669 dbus_message_iter_next(&element_i);
670 }
671 }
672
673 static void register_endpoint_reply(DBusPendingCall *pending, void *userdata) {
674 DBusMessage *r;
675 pa_dbus_pending *p;
676 pa_bluetooth_discovery *y;
677 char *endpoint;
678
679 pa_assert(pending);
680 pa_assert_se(p = userdata);
681 pa_assert_se(y = p->context_data);
682 pa_assert_se(endpoint = p->call_data);
683 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
684
685 if (dbus_message_is_error(r, BLUEZ_ERROR_NOT_SUPPORTED)) {
686 pa_log_info("Couldn't register endpoint %s because it is disabled in BlueZ", endpoint);
687 goto finish;
688 }
689
690 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
691 pa_log_error(BLUEZ_MEDIA_INTERFACE ".RegisterEndpoint() failed: %s: %s", dbus_message_get_error_name(r),
692 pa_dbus_get_error_message(r));
693 goto finish;
694 }
695
696 finish:
697 dbus_message_unref(r);
698
699 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
700 pa_dbus_pending_free(p);
701
702 pa_xfree(endpoint);
703 }
704
705 static void register_endpoint(pa_bluetooth_discovery *y, const char *path, const char *endpoint, const char *uuid) {
706 DBusMessage *m;
707 DBusMessageIter i, d;
708 uint8_t codec = 0;
709
710 pa_log_debug("Registering %s on adapter %s", endpoint, path);
711
712 pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, path, BLUEZ_MEDIA_INTERFACE, "RegisterEndpoint"));
713
714 dbus_message_iter_init_append(m, &i);
715 dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &endpoint);
716 dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING
717 DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &d);
718 pa_dbus_append_basic_variant_dict_entry(&d, "UUID", DBUS_TYPE_STRING, &uuid);
719 pa_dbus_append_basic_variant_dict_entry(&d, "Codec", DBUS_TYPE_BYTE, &codec);
720
721 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE) || pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK)) {
722 a2dp_sbc_t capabilities;
723
724 capabilities.channel_mode = SBC_CHANNEL_MODE_MONO | SBC_CHANNEL_MODE_DUAL_CHANNEL | SBC_CHANNEL_MODE_STEREO |
725 SBC_CHANNEL_MODE_JOINT_STEREO;
726 capabilities.frequency = SBC_SAMPLING_FREQ_16000 | SBC_SAMPLING_FREQ_32000 | SBC_SAMPLING_FREQ_44100 |
727 SBC_SAMPLING_FREQ_48000;
728 capabilities.allocation_method = SBC_ALLOCATION_SNR | SBC_ALLOCATION_LOUDNESS;
729 capabilities.subbands = SBC_SUBBANDS_4 | SBC_SUBBANDS_8;
730 capabilities.block_length = SBC_BLOCK_LENGTH_4 | SBC_BLOCK_LENGTH_8 | SBC_BLOCK_LENGTH_12 | SBC_BLOCK_LENGTH_16;
731 capabilities.min_bitpool = MIN_BITPOOL;
732 capabilities.max_bitpool = MAX_BITPOOL;
733
734 pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &capabilities, sizeof(capabilities));
735 }
736
737 dbus_message_iter_close_container(&i, &d);
738
739 send_and_add_to_pending(y, m, register_endpoint_reply, pa_xstrdup(endpoint));
740 }
741
742 static void parse_interfaces_and_properties(pa_bluetooth_discovery *y, DBusMessageIter *dict_i) {
743 DBusMessageIter element_i;
744 const char *path;
745 void *state;
746 pa_bluetooth_device *d;
747
748 pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_OBJECT_PATH);
749 dbus_message_iter_get_basic(dict_i, &path);
750
751 pa_assert_se(dbus_message_iter_next(dict_i));
752 pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_ARRAY);
753
754 dbus_message_iter_recurse(dict_i, &element_i);
755
756 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
757 DBusMessageIter iface_i;
758 const char *interface;
759
760 dbus_message_iter_recurse(&element_i, &iface_i);
761
762 pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_STRING);
763 dbus_message_iter_get_basic(&iface_i, &interface);
764
765 pa_assert_se(dbus_message_iter_next(&iface_i));
766 pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_ARRAY);
767
768 if (pa_streq(interface, BLUEZ_ADAPTER_INTERFACE)) {
769 pa_bluetooth_adapter *a;
770
771 if ((a = pa_hashmap_get(y->adapters, path))) {
772 pa_log_error("Found duplicated D-Bus path for device %s", path);
773 return;
774 } else
775 a = adapter_create(y, path);
776
777 pa_log_debug("Adapter %s found", path);
778
779 parse_adapter_properties(a, &iface_i, false);
780 if (!a->address)
781 return;
782
783 register_endpoint(y, path, A2DP_SOURCE_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SOURCE);
784 register_endpoint(y, path, A2DP_SINK_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SINK);
785
786 } else if (pa_streq(interface, BLUEZ_DEVICE_INTERFACE)) {
787
788 if ((d = pa_hashmap_get(y->devices, path))) {
789 if (d->device_info_valid != 0) {
790 pa_log_error("Found duplicated D-Bus path for device %s", path);
791 return;
792 }
793 } else
794 d = device_create(y, path);
795
796 pa_log_debug("Device %s found", d->path);
797
798 parse_device_properties(d, &iface_i, false);
799
800 } else
801 pa_log_debug("Unknown interface %s found, skipping", interface);
802
803 dbus_message_iter_next(&element_i);
804 }
805
806 PA_HASHMAP_FOREACH(d, y->devices, state)
807 if (!d->adapter && d->adapter_path) {
808 d->adapter = pa_hashmap_get(d->discovery->adapters, d->adapter_path);
809 if (!d->adapter) {
810 pa_log_error("Device %s is child of nonexistent adapter %s", d->path, d->adapter_path);
811 d->device_info_valid = -1;
812 }
813 }
814
815 return;
816 }
817
818 static void get_managed_objects_reply(DBusPendingCall *pending, void *userdata) {
819 pa_dbus_pending *p;
820 pa_bluetooth_discovery *y;
821 DBusMessage *r;
822 DBusMessageIter arg_i, element_i;
823
824 pa_assert_se(p = userdata);
825 pa_assert_se(y = p->context_data);
826 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
827
828 if (dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD)) {
829 pa_log_warn("BlueZ D-Bus ObjectManager not available");
830 goto finish;
831 }
832
833 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
834 pa_log_error("GetManagedObjects() failed: %s: %s", dbus_message_get_error_name(r), pa_dbus_get_error_message(r));
835 goto finish;
836 }
837
838 if (!dbus_message_iter_init(r, &arg_i) || !pa_streq(dbus_message_get_signature(r), "a{oa{sa{sv}}}")) {
839 pa_log_error("Invalid reply signature for GetManagedObjects()");
840 goto finish;
841 }
842
843 dbus_message_iter_recurse(&arg_i, &element_i);
844 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
845 DBusMessageIter dict_i;
846
847 dbus_message_iter_recurse(&element_i, &dict_i);
848
849 parse_interfaces_and_properties(y, &dict_i);
850
851 dbus_message_iter_next(&element_i);
852 }
853
854 y->objects_listed = true;
855
856 finish:
857 dbus_message_unref(r);
858
859 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
860 pa_dbus_pending_free(p);
861 }
862
863 static void get_managed_objects(pa_bluetooth_discovery *y) {
864 DBusMessage *m;
865
866 pa_assert(y);
867
868 pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, "/", "org.freedesktop.DBus.ObjectManager",
869 "GetManagedObjects"));
870 send_and_add_to_pending(y, m, get_managed_objects_reply, NULL);
871 }
872
873 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook) {
874 pa_assert(y);
875 pa_assert(PA_REFCNT_VALUE(y) > 0);
876
877 return &y->hooks[hook];
878 }
879
880 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
881 pa_bluetooth_discovery *y;
882 DBusError err;
883
884 pa_assert(bus);
885 pa_assert(m);
886 pa_assert_se(y = userdata);
887
888 dbus_error_init(&err);
889
890 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_error("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
899 goto fail;
900 }
901
902 if (pa_streq(name, BLUEZ_SERVICE)) {
903 if (old_owner && *old_owner) {
904 pa_log_debug("Bluetooth daemon disappeared");
905 device_remove_all(y);
906 pa_hashmap_remove_all(y->adapters);
907 y->objects_listed = false;
908 }
909
910 if (new_owner && *new_owner) {
911 pa_log_debug("Bluetooth daemon appeared");
912 get_managed_objects(y);
913 }
914 }
915
916 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
917 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded")) {
918 DBusMessageIter arg_i;
919
920 if (!y->objects_listed)
921 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
922
923 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oa{sa{sv}}")) {
924 pa_log_error("Invalid signature found in InterfacesAdded");
925 goto fail;
926 }
927
928 parse_interfaces_and_properties(y, &arg_i);
929
930 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
931 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved")) {
932 const char *p;
933 DBusMessageIter arg_i;
934 DBusMessageIter element_i;
935
936 if (!y->objects_listed)
937 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
938
939 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oas")) {
940 pa_log_error("Invalid signature found in InterfacesRemoved");
941 goto fail;
942 }
943
944 dbus_message_iter_get_basic(&arg_i, &p);
945
946 pa_assert_se(dbus_message_iter_next(&arg_i));
947 pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
948
949 dbus_message_iter_recurse(&arg_i, &element_i);
950
951 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_STRING) {
952 const char *iface;
953
954 dbus_message_iter_get_basic(&element_i, &iface);
955
956 if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE))
957 device_remove(y, p);
958 else if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE))
959 adapter_remove(y, p);
960
961 dbus_message_iter_next(&element_i);
962 }
963
964 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
965
966 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
967 DBusMessageIter arg_i;
968 const char *iface;
969
970 if (!y->objects_listed)
971 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
972
973 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "sa{sv}as")) {
974 pa_log_error("Invalid signature found in PropertiesChanged");
975 goto fail;
976 }
977
978 dbus_message_iter_get_basic(&arg_i, &iface);
979
980 pa_assert_se(dbus_message_iter_next(&arg_i));
981 pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
982
983 if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE)) {
984 pa_bluetooth_adapter *a;
985
986 pa_log_debug("Properties changed in adapter %s", dbus_message_get_path(m));
987
988 if (!(a = pa_hashmap_get(y->adapters, dbus_message_get_path(m)))) {
989 pa_log_warn("Properties changed in unknown adapter");
990 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
991 }
992
993 parse_adapter_properties(a, &arg_i, true);
994
995 } else if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE)) {
996 pa_bluetooth_device *d;
997
998 pa_log_debug("Properties changed in device %s", dbus_message_get_path(m));
999
1000 if (!(d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
1001 pa_log_warn("Properties changed in unknown device");
1002 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1003 }
1004
1005 if (d->device_info_valid != 1) {
1006 pa_log_warn("Properties changed in a device which information is unknown or invalid");
1007 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1008 }
1009
1010 parse_device_properties(d, &arg_i, true);
1011 } else if (pa_streq(iface, BLUEZ_MEDIA_TRANSPORT_INTERFACE)) {
1012 pa_bluetooth_transport *t;
1013
1014 pa_log_debug("Properties changed in transport %s", dbus_message_get_path(m));
1015
1016 if (!(t = pa_hashmap_get(y->transports, dbus_message_get_path(m))))
1017 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1018
1019 parse_transport_properties(t, &arg_i);
1020 }
1021
1022 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1023 }
1024
1025 fail:
1026 dbus_error_free(&err);
1027
1028 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1029 }
1030
1031 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
1032 /* These bitpool values were chosen based on the A2DP spec recommendation */
1033 switch (freq) {
1034 case SBC_SAMPLING_FREQ_16000:
1035 case SBC_SAMPLING_FREQ_32000:
1036 return 53;
1037
1038 case SBC_SAMPLING_FREQ_44100:
1039
1040 switch (mode) {
1041 case SBC_CHANNEL_MODE_MONO:
1042 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
1043 return 31;
1044
1045 case SBC_CHANNEL_MODE_STEREO:
1046 case SBC_CHANNEL_MODE_JOINT_STEREO:
1047 return 53;
1048 }
1049
1050 pa_log_warn("Invalid channel mode %u", mode);
1051 return 53;
1052
1053 case SBC_SAMPLING_FREQ_48000:
1054
1055 switch (mode) {
1056 case SBC_CHANNEL_MODE_MONO:
1057 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
1058 return 29;
1059
1060 case SBC_CHANNEL_MODE_STEREO:
1061 case SBC_CHANNEL_MODE_JOINT_STEREO:
1062 return 51;
1063 }
1064
1065 pa_log_warn("Invalid channel mode %u", mode);
1066 return 51;
1067 }
1068
1069 pa_log_warn("Invalid sampling freq %u", freq);
1070 return 53;
1071 }
1072
1073 const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile) {
1074 switch(profile) {
1075 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1076 return "a2dp_sink";
1077 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1078 return "a2dp_source";
1079 case PA_BLUETOOTH_PROFILE_OFF:
1080 return "off";
1081 }
1082
1083 return NULL;
1084 }
1085
1086 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1087 pa_bluetooth_discovery *y = userdata;
1088 pa_bluetooth_device *d;
1089 pa_bluetooth_transport *t;
1090 const char *sender, *path, *endpoint_path, *dev_path = NULL, *uuid = NULL;
1091 const uint8_t *config = NULL;
1092 int size = 0;
1093 pa_bluetooth_profile_t p = PA_BLUETOOTH_PROFILE_OFF;
1094 DBusMessageIter args, props;
1095 DBusMessage *r;
1096
1097 if (!dbus_message_iter_init(m, &args) || !pa_streq(dbus_message_get_signature(m), "oa{sv}")) {
1098 pa_log_error("Invalid signature for method SetConfiguration()");
1099 goto fail2;
1100 }
1101
1102 dbus_message_iter_get_basic(&args, &path);
1103
1104 if (pa_hashmap_get(y->transports, path)) {
1105 pa_log_error("Endpoint SetConfiguration(): Transport %s is already configured.", path);
1106 goto fail2;
1107 }
1108
1109 pa_assert_se(dbus_message_iter_next(&args));
1110
1111 dbus_message_iter_recurse(&args, &props);
1112 if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
1113 goto fail;
1114
1115 /* Read transport properties */
1116 while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
1117 const char *key;
1118 DBusMessageIter value, entry;
1119 int var;
1120
1121 dbus_message_iter_recurse(&props, &entry);
1122 dbus_message_iter_get_basic(&entry, &key);
1123
1124 dbus_message_iter_next(&entry);
1125 dbus_message_iter_recurse(&entry, &value);
1126
1127 var = dbus_message_iter_get_arg_type(&value);
1128
1129 if (pa_streq(key, "UUID")) {
1130 if (var != DBUS_TYPE_STRING) {
1131 pa_log_error("Property %s of wrong type %c", key, (char)var);
1132 goto fail;
1133 }
1134
1135 dbus_message_iter_get_basic(&value, &uuid);
1136
1137 endpoint_path = dbus_message_get_path(m);
1138 if (pa_streq(endpoint_path, A2DP_SOURCE_ENDPOINT)) {
1139 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE))
1140 p = PA_BLUETOOTH_PROFILE_A2DP_SINK;
1141 } else if (pa_streq(endpoint_path, A2DP_SINK_ENDPOINT)) {
1142 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK))
1143 p = PA_BLUETOOTH_PROFILE_A2DP_SOURCE;
1144 }
1145
1146 if (p == PA_BLUETOOTH_PROFILE_OFF) {
1147 pa_log_error("UUID %s of transport %s incompatible with endpoint %s", uuid, path, endpoint_path);
1148 goto fail;
1149 }
1150 } else if (pa_streq(key, "Device")) {
1151 if (var != DBUS_TYPE_OBJECT_PATH) {
1152 pa_log_error("Property %s of wrong type %c", key, (char)var);
1153 goto fail;
1154 }
1155
1156 dbus_message_iter_get_basic(&value, &dev_path);
1157 } else if (pa_streq(key, "Configuration")) {
1158 DBusMessageIter array;
1159 a2dp_sbc_t *c;
1160
1161 if (var != DBUS_TYPE_ARRAY) {
1162 pa_log_error("Property %s of wrong type %c", key, (char)var);
1163 goto fail;
1164 }
1165
1166 dbus_message_iter_recurse(&value, &array);
1167 var = dbus_message_iter_get_arg_type(&array);
1168 if (var != DBUS_TYPE_BYTE) {
1169 pa_log_error("%s is an array of wrong type %c", key, (char)var);
1170 goto fail;
1171 }
1172
1173 dbus_message_iter_get_fixed_array(&array, &config, &size);
1174 if (size != sizeof(a2dp_sbc_t)) {
1175 pa_log_error("Configuration array of invalid size");
1176 goto fail;
1177 }
1178
1179 c = (a2dp_sbc_t *) config;
1180
1181 if (c->frequency != SBC_SAMPLING_FREQ_16000 && c->frequency != SBC_SAMPLING_FREQ_32000 &&
1182 c->frequency != SBC_SAMPLING_FREQ_44100 && c->frequency != SBC_SAMPLING_FREQ_48000) {
1183 pa_log_error("Invalid sampling frequency in configuration");
1184 goto fail;
1185 }
1186
1187 if (c->channel_mode != SBC_CHANNEL_MODE_MONO && c->channel_mode != SBC_CHANNEL_MODE_DUAL_CHANNEL &&
1188 c->channel_mode != SBC_CHANNEL_MODE_STEREO && c->channel_mode != SBC_CHANNEL_MODE_JOINT_STEREO) {
1189 pa_log_error("Invalid channel mode in configuration");
1190 goto fail;
1191 }
1192
1193 if (c->allocation_method != SBC_ALLOCATION_SNR && c->allocation_method != SBC_ALLOCATION_LOUDNESS) {
1194 pa_log_error("Invalid allocation method in configuration");
1195 goto fail;
1196 }
1197
1198 if (c->subbands != SBC_SUBBANDS_4 && c->subbands != SBC_SUBBANDS_8) {
1199 pa_log_error("Invalid SBC subbands in configuration");
1200 goto fail;
1201 }
1202
1203 if (c->block_length != SBC_BLOCK_LENGTH_4 && c->block_length != SBC_BLOCK_LENGTH_8 &&
1204 c->block_length != SBC_BLOCK_LENGTH_12 && c->block_length != SBC_BLOCK_LENGTH_16) {
1205 pa_log_error("Invalid block length in configuration");
1206 goto fail;
1207 }
1208 }
1209
1210 dbus_message_iter_next(&props);
1211 }
1212
1213 if ((d = pa_hashmap_get(y->devices, dev_path))) {
1214 if (d->device_info_valid == -1) {
1215 pa_log_error("Information about device %s is invalid", dev_path);
1216 goto fail2;
1217 }
1218 } else {
1219 /* InterfacesAdded signal is probably on it's way, device_info_valid is kept as 0. */
1220 pa_log_warn("SetConfiguration() received for unknown device %s", dev_path);
1221 d = device_create(y, dev_path);
1222 }
1223
1224 if (d->transports[p] != NULL) {
1225 pa_log_error("Cannot configure transport %s because profile %s is already used", path, pa_bluetooth_profile_to_string(p));
1226 goto fail2;
1227 }
1228
1229 sender = dbus_message_get_sender(m);
1230
1231 pa_assert_se(r = dbus_message_new_method_return(m));
1232 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1233 dbus_message_unref(r);
1234
1235 d->transports[p] = t = pa_bluetooth_transport_new(d, sender, path, p, config, size);
1236 t->acquire = bluez5_transport_acquire_cb;
1237 t->release = bluez5_transport_release_cb;
1238 pa_bluetooth_transport_put(t);
1239
1240 pa_log_debug("Transport %s available for profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1241
1242 return NULL;
1243
1244 fail:
1245 pa_log_error("Endpoint SetConfiguration(): invalid arguments");
1246
1247 fail2:
1248 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to set configuration"));
1249 return r;
1250 }
1251
1252 static DBusMessage *endpoint_select_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1253 pa_bluetooth_discovery *y = userdata;
1254 a2dp_sbc_t *cap, config;
1255 uint8_t *pconf = (uint8_t *) &config;
1256 int i, size;
1257 DBusMessage *r;
1258 DBusError err;
1259
1260 static const struct {
1261 uint32_t rate;
1262 uint8_t cap;
1263 } freq_table[] = {
1264 { 16000U, SBC_SAMPLING_FREQ_16000 },
1265 { 32000U, SBC_SAMPLING_FREQ_32000 },
1266 { 44100U, SBC_SAMPLING_FREQ_44100 },
1267 { 48000U, SBC_SAMPLING_FREQ_48000 }
1268 };
1269
1270 dbus_error_init(&err);
1271
1272 if (!dbus_message_get_args(m, &err, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &cap, &size, DBUS_TYPE_INVALID)) {
1273 pa_log_error("Endpoint SelectConfiguration(): %s", err.message);
1274 dbus_error_free(&err);
1275 goto fail;
1276 }
1277
1278 if (size != sizeof(config)) {
1279 pa_log_error("Capabilities array has invalid size");
1280 goto fail;
1281 }
1282
1283 pa_zero(config);
1284
1285 /* Find the lowest freq that is at least as high as the requested sampling rate */
1286 for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
1287 if (freq_table[i].rate >= y->core->default_sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
1288 config.frequency = freq_table[i].cap;
1289 break;
1290 }
1291
1292 if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
1293 for (--i; i >= 0; i--) {
1294 if (cap->frequency & freq_table[i].cap) {
1295 config.frequency = freq_table[i].cap;
1296 break;
1297 }
1298 }
1299
1300 if (i < 0) {
1301 pa_log_error("Not suitable sample rate");
1302 goto fail;
1303 }
1304 }
1305
1306 pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
1307
1308 if (y->core->default_sample_spec.channels <= 1) {
1309 if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1310 config.channel_mode = SBC_CHANNEL_MODE_MONO;
1311 else if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1312 config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1313 else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1314 config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1315 else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1316 config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1317 else {
1318 pa_log_error("No supported channel modes");
1319 goto fail;
1320 }
1321 }
1322
1323 if (y->core->default_sample_spec.channels >= 2) {
1324 if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1325 config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1326 else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1327 config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1328 else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1329 config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1330 else if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1331 config.channel_mode = SBC_CHANNEL_MODE_MONO;
1332 else {
1333 pa_log_error("No supported channel modes");
1334 goto fail;
1335 }
1336 }
1337
1338 if (cap->block_length & SBC_BLOCK_LENGTH_16)
1339 config.block_length = SBC_BLOCK_LENGTH_16;
1340 else if (cap->block_length & SBC_BLOCK_LENGTH_12)
1341 config.block_length = SBC_BLOCK_LENGTH_12;
1342 else if (cap->block_length & SBC_BLOCK_LENGTH_8)
1343 config.block_length = SBC_BLOCK_LENGTH_8;
1344 else if (cap->block_length & SBC_BLOCK_LENGTH_4)
1345 config.block_length = SBC_BLOCK_LENGTH_4;
1346 else {
1347 pa_log_error("No supported block lengths");
1348 goto fail;
1349 }
1350
1351 if (cap->subbands & SBC_SUBBANDS_8)
1352 config.subbands = SBC_SUBBANDS_8;
1353 else if (cap->subbands & SBC_SUBBANDS_4)
1354 config.subbands = SBC_SUBBANDS_4;
1355 else {
1356 pa_log_error("No supported subbands");
1357 goto fail;
1358 }
1359
1360 if (cap->allocation_method & SBC_ALLOCATION_LOUDNESS)
1361 config.allocation_method = SBC_ALLOCATION_LOUDNESS;
1362 else if (cap->allocation_method & SBC_ALLOCATION_SNR)
1363 config.allocation_method = SBC_ALLOCATION_SNR;
1364
1365 config.min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
1366 config.max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(config.frequency, config.channel_mode), cap->max_bitpool);
1367
1368 if (config.min_bitpool > config.max_bitpool)
1369 goto fail;
1370
1371 pa_assert_se(r = dbus_message_new_method_return(m));
1372 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &pconf, size, DBUS_TYPE_INVALID));
1373
1374 return r;
1375
1376 fail:
1377 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to select configuration"));
1378 return r;
1379 }
1380
1381 static DBusMessage *endpoint_clear_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1382 pa_bluetooth_discovery *y = userdata;
1383 pa_bluetooth_transport *t;
1384 DBusMessage *r;
1385 DBusError err;
1386 const char *path;
1387
1388 dbus_error_init(&err);
1389
1390 if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
1391 pa_log_error("Endpoint ClearConfiguration(): %s", err.message);
1392 dbus_error_free(&err);
1393 goto fail;
1394 }
1395
1396 if ((t = pa_hashmap_get(y->transports, path))) {
1397 pa_log_debug("Clearing transport %s profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1398 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
1399 pa_bluetooth_transport_free(t);
1400 }
1401
1402 pa_assert_se(r = dbus_message_new_method_return(m));
1403
1404 return r;
1405
1406 fail:
1407 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to clear configuration"));
1408 return r;
1409 }
1410
1411 static DBusMessage *endpoint_release(DBusConnection *conn, DBusMessage *m, void *userdata) {
1412 DBusMessage *r;
1413
1414 pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
1415 "Method not implemented"));
1416
1417 return r;
1418 }
1419
1420 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
1421 struct pa_bluetooth_discovery *y = userdata;
1422 DBusMessage *r = NULL;
1423 const char *path, *interface, *member;
1424
1425 pa_assert(y);
1426
1427 path = dbus_message_get_path(m);
1428 interface = dbus_message_get_interface(m);
1429 member = dbus_message_get_member(m);
1430
1431 pa_log_debug("dbus: path=%s, interface=%s, member=%s", path, interface, member);
1432
1433 if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT))
1434 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1435
1436 if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1437 const char *xml = ENDPOINT_INTROSPECT_XML;
1438
1439 pa_assert_se(r = dbus_message_new_method_return(m));
1440 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_STRING, &xml, DBUS_TYPE_INVALID));
1441
1442 } else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SetConfiguration"))
1443 r = endpoint_set_configuration(c, m, userdata);
1444 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SelectConfiguration"))
1445 r = endpoint_select_configuration(c, m, userdata);
1446 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "ClearConfiguration"))
1447 r = endpoint_clear_configuration(c, m, userdata);
1448 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "Release"))
1449 r = endpoint_release(c, m, userdata);
1450 else
1451 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1452
1453 if (r) {
1454 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1455 dbus_message_unref(r);
1456 }
1457
1458 return DBUS_HANDLER_RESULT_HANDLED;
1459 }
1460
1461 static void endpoint_init(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1462 static const DBusObjectPathVTable vtable_endpoint = {
1463 .message_function = endpoint_handler,
1464 };
1465
1466 pa_assert(y);
1467
1468 switch(profile) {
1469 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1470 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT,
1471 &vtable_endpoint, y));
1472 break;
1473 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1474 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT,
1475 &vtable_endpoint, y));
1476 break;
1477 default:
1478 pa_assert_not_reached();
1479 break;
1480 }
1481 }
1482
1483 static void endpoint_done(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1484 pa_assert(y);
1485
1486 switch(profile) {
1487 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1488 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
1489 break;
1490 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1491 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
1492 break;
1493 default:
1494 pa_assert_not_reached();
1495 break;
1496 }
1497 }
1498
1499 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
1500 pa_bluetooth_discovery *y;
1501 DBusError err;
1502 DBusConnection *conn;
1503 unsigned i;
1504
1505 y = pa_xnew0(pa_bluetooth_discovery, 1);
1506 PA_REFCNT_INIT(y);
1507 y->core = c;
1508 y->adapters = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
1509 (pa_free_cb_t) adapter_free);
1510 y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1511 y->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1512 PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
1513
1514 for (i = 0; i < PA_BLUETOOTH_HOOK_MAX; i++)
1515 pa_hook_init(&y->hooks[i], y);
1516
1517 pa_shared_set(c, "bluetooth-discovery", y);
1518
1519 dbus_error_init(&err);
1520
1521 if (!(y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err))) {
1522 pa_log_error("Failed to get D-Bus connection: %s", err.message);
1523 goto fail;
1524 }
1525
1526 conn = pa_dbus_connection_get(y->connection);
1527
1528 /* dynamic detection of bluetooth audio devices */
1529 if (!dbus_connection_add_filter(conn, filter_cb, y, NULL)) {
1530 pa_log_error("Failed to add filter function");
1531 goto fail;
1532 }
1533 y->filter_added = true;
1534
1535 if (pa_dbus_add_matches(conn, &err,
1536 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'"
1537 ",arg0='" BLUEZ_SERVICE "'",
1538 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',member='InterfacesAdded'",
1539 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1540 "member='InterfacesRemoved'",
1541 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1542 ",arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1543 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1544 ",arg0='" BLUEZ_DEVICE_INTERFACE "'",
1545 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1546 ",arg0='" BLUEZ_MEDIA_TRANSPORT_INTERFACE "'",
1547 NULL) < 0) {
1548 pa_log_error("Failed to add D-Bus matches: %s", err.message);
1549 goto fail;
1550 }
1551 y->matches_added = true;
1552
1553 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1554 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1555
1556 get_managed_objects(y);
1557
1558 return y;
1559
1560 fail:
1561 pa_bluetooth_discovery_unref(y);
1562 dbus_error_free(&err);
1563
1564 return NULL;
1565 }
1566
1567 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
1568 pa_assert(y);
1569 pa_assert(PA_REFCNT_VALUE(y) > 0);
1570
1571 PA_REFCNT_INC(y);
1572
1573 return y;
1574 }
1575
1576 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
1577 pa_assert(y);
1578 pa_assert(PA_REFCNT_VALUE(y) > 0);
1579
1580 if (PA_REFCNT_DEC(y) > 0)
1581 return;
1582
1583 pa_dbus_free_pending_list(&y->pending);
1584
1585 if (y->devices) {
1586 device_remove_all(y);
1587 pa_hashmap_free(y->devices);
1588 }
1589
1590 if (y->adapters)
1591 pa_hashmap_free(y->adapters);
1592
1593 if (y->transports) {
1594 pa_assert(pa_hashmap_isempty(y->transports));
1595 pa_hashmap_free(y->transports);
1596 }
1597
1598 if (y->connection) {
1599
1600 if (y->matches_added)
1601 pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
1602 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
1603 "arg0='" BLUEZ_SERVICE "'",
1604 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1605 "member='InterfacesAdded'",
1606 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1607 "member='InterfacesRemoved'",
1608 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1609 "member='PropertiesChanged',arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1610 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1611 "member='PropertiesChanged',arg0='" BLUEZ_DEVICE_INTERFACE "'",
1612 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1613 "member='PropertiesChanged',arg0='" BLUEZ_MEDIA_TRANSPORT_INTERFACE "'",
1614 NULL);
1615
1616 if (y->filter_added)
1617 dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1618
1619 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1620 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1621
1622 pa_dbus_connection_unref(y->connection);
1623 }
1624
1625 pa_shared_remove(y->core, "bluetooth-discovery");
1626 pa_xfree(y);
1627 }