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[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_MEDIA_ENDPOINT_INTERFACE BLUEZ_SERVICE ".MediaEndpoint1"
42 #define BLUEZ_MEDIA_TRANSPORT_INTERFACE BLUEZ_SERVICE ".MediaTransport1"
43
44 #define A2DP_SOURCE_ENDPOINT "/MediaEndpoint/A2DPSource"
45 #define A2DP_SINK_ENDPOINT "/MediaEndpoint/A2DPSink"
46
47 #define ENDPOINT_INTROSPECT_XML \
48 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
49 "<node>" \
50 " <interface name=\"" BLUEZ_MEDIA_ENDPOINT_INTERFACE "\">" \
51 " <method name=\"SetConfiguration\">" \
52 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
53 " <arg name=\"properties\" direction=\"in\" type=\"ay\"/>" \
54 " </method>" \
55 " <method name=\"SelectConfiguration\">" \
56 " <arg name=\"capabilities\" direction=\"in\" type=\"ay\"/>" \
57 " <arg name=\"configuration\" direction=\"out\" type=\"ay\"/>" \
58 " </method>" \
59 " <method name=\"ClearConfiguration\">" \
60 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
61 " </method>" \
62 " <method name=\"Release\">" \
63 " </method>" \
64 " </interface>" \
65 " <interface name=\"org.freedesktop.DBus.Introspectable\">" \
66 " <method name=\"Introspect\">" \
67 " <arg name=\"data\" type=\"s\" direction=\"out\"/>" \
68 " </method>" \
69 " </interface>" \
70 "</node>"
71
72 struct pa_bluetooth_discovery {
73 PA_REFCNT_DECLARE;
74
75 pa_core *core;
76 pa_dbus_connection *connection;
77 bool filter_added;
78 bool matches_added;
79 pa_hook hooks[PA_BLUETOOTH_HOOK_MAX];
80 pa_hashmap *adapters;
81 pa_hashmap *devices;
82 pa_hashmap *transports;
83 };
84
85 pa_bluetooth_transport *pa_bluetooth_transport_new(pa_bluetooth_device *d, const char *owner, const char *path,
86 pa_bluetooth_profile_t p, const uint8_t *config, size_t size) {
87 pa_bluetooth_transport *t;
88
89 t = pa_xnew0(pa_bluetooth_transport, 1);
90 t->device = d;
91 t->owner = pa_xstrdup(owner);
92 t->path = pa_xstrdup(path);
93 t->profile = p;
94 t->config_size = size;
95
96 if (size > 0) {
97 t->config = pa_xnew(uint8_t, size);
98 memcpy(t->config, config, size);
99 }
100
101 pa_assert_se(pa_hashmap_put(d->discovery->transports, t->path, t) >= 0);
102
103 return t;
104 }
105
106 static const char *transport_state_to_string(pa_bluetooth_transport_state_t state) {
107 switch(state) {
108 case PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED:
109 return "disconnected";
110 case PA_BLUETOOTH_TRANSPORT_STATE_IDLE:
111 return "idle";
112 case PA_BLUETOOTH_TRANSPORT_STATE_PLAYING:
113 return "playing";
114 }
115
116 return "invalid";
117 }
118
119 static void transport_state_changed(pa_bluetooth_transport *t, pa_bluetooth_transport_state_t state) {
120 bool old_any_connected;
121
122 pa_assert(t);
123
124 if (t->state == state)
125 return;
126
127 old_any_connected = pa_bluetooth_device_any_transport_connected(t->device);
128
129 pa_log_debug("Transport %s state changed from %s to %s",
130 t->path, transport_state_to_string(t->state), transport_state_to_string(state));
131
132 t->state = state;
133 if (state == PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED)
134 t->device->transports[t->profile] = NULL;
135
136 pa_hook_fire(&t->device->discovery->hooks[PA_BLUETOOTH_HOOK_TRANSPORT_STATE_CHANGED], t);
137
138 if (old_any_connected != pa_bluetooth_device_any_transport_connected(t->device))
139 pa_hook_fire(&t->device->discovery->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], t->device);
140 }
141
142 void pa_bluetooth_transport_put(pa_bluetooth_transport *t) {
143 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_IDLE);
144 }
145
146 void pa_bluetooth_transport_free(pa_bluetooth_transport *t) {
147 pa_assert(t);
148
149 pa_hashmap_remove(t->device->discovery->transports, t->path);
150 pa_xfree(t->owner);
151 pa_xfree(t->path);
152 pa_xfree(t->config);
153 pa_xfree(t);
154 }
155
156 static int bluez5_transport_acquire_cb(pa_bluetooth_transport *t, bool optional, size_t *imtu, size_t *omtu) {
157 DBusMessage *m, *r;
158 DBusError err;
159 int ret;
160 uint16_t i, o;
161 const char *method = optional ? "TryAcquire" : "Acquire";
162
163 pa_assert(t);
164 pa_assert(t->device);
165 pa_assert(t->device->discovery);
166
167 pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, BLUEZ_MEDIA_TRANSPORT_INTERFACE, method));
168
169 dbus_error_init(&err);
170
171 r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection), m, -1, &err);
172 if (!r) {
173 if (optional && pa_streq(err.name, "org.bluez.Error.NotAvailable"))
174 pa_log_info("Failed optional acquire of unavailable transport %s", t->path);
175 else
176 pa_log_error("Transport %s() failed for transport %s (%s)", method, t->path, err.message);
177
178 dbus_error_free(&err);
179 return -1;
180 }
181
182 if (!dbus_message_get_args(r, &err, DBUS_TYPE_UNIX_FD, &ret, DBUS_TYPE_UINT16, &i, DBUS_TYPE_UINT16, &o,
183 DBUS_TYPE_INVALID)) {
184 pa_log_error("Failed to parse %s() reply: %s", method, err.message);
185 dbus_error_free(&err);
186 ret = -1;
187 goto finish;
188 }
189
190 if (imtu)
191 *imtu = i;
192
193 if (omtu)
194 *omtu = o;
195
196 finish:
197 dbus_message_unref(r);
198 return ret;
199 }
200
201 static void bluez5_transport_release_cb(pa_bluetooth_transport *t) {
202 DBusMessage *m;
203 DBusError err;
204
205 pa_assert(t);
206 pa_assert(t->device);
207 pa_assert(t->device->discovery);
208
209 dbus_error_init(&err);
210
211 if (t->state <= PA_BLUETOOTH_TRANSPORT_STATE_IDLE) {
212 pa_log_info("Transport %s auto-released by BlueZ or already released", t->path);
213 return;
214 }
215
216 pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, BLUEZ_MEDIA_TRANSPORT_INTERFACE, "Release"));
217 dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection), m, -1, &err);
218
219 if (dbus_error_is_set(&err)) {
220 pa_log_error("Failed to release transport %s: %s", t->path, err.message);
221 dbus_error_free(&err);
222 } else
223 pa_log_info("Transport %s released", t->path);
224 }
225
226 bool pa_bluetooth_device_any_transport_connected(const pa_bluetooth_device *d) {
227 unsigned i;
228
229 pa_assert(d);
230
231 if (d->device_info_valid != 1)
232 return false;
233
234 for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++)
235 if (d->transports[i] && d->transports[i]->state != PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED)
236 return true;
237
238 return false;
239 }
240
241 static pa_bluetooth_device* device_create(pa_bluetooth_discovery *y, const char *path) {
242 pa_bluetooth_device *d;
243
244 pa_assert(y);
245 pa_assert(path);
246
247 d = pa_xnew0(pa_bluetooth_device, 1);
248 d->discovery = y;
249 d->path = pa_xstrdup(path);
250
251 pa_hashmap_put(y->devices, d->path, d);
252
253 return d;
254 }
255
256 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_discovery *y, const char *path) {
257 pa_bluetooth_device *d;
258
259 pa_assert(y);
260 pa_assert(PA_REFCNT_VALUE(y) > 0);
261 pa_assert(path);
262
263 if ((d = pa_hashmap_get(y->devices, path)))
264 if (d->device_info_valid == 1)
265 return d;
266
267 return NULL;
268 }
269
270 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery *y, const char *remote, const char *local) {
271 pa_bluetooth_device *d;
272 void *state = NULL;
273
274 pa_assert(y);
275 pa_assert(PA_REFCNT_VALUE(y) > 0);
276 pa_assert(remote);
277 pa_assert(local);
278
279 while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
280 if (pa_streq(d->address, remote) && pa_streq(d->adapter->address, local))
281 return d->device_info_valid == 1 ? d : NULL;
282
283 return NULL;
284 }
285
286 static void device_free(pa_bluetooth_device *d) {
287 unsigned i;
288
289 pa_assert(d);
290
291 for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++) {
292 pa_bluetooth_transport *t;
293
294 if (!(t = d->transports[i]))
295 continue;
296
297 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
298 pa_bluetooth_transport_free(t);
299 }
300
301 d->discovery = NULL;
302 d->adapter = NULL;
303 pa_xfree(d->path);
304 pa_xfree(d->alias);
305 pa_xfree(d->address);
306 pa_xfree(d);
307 }
308
309 static void device_remove(pa_bluetooth_discovery *y, const char *path) {
310 pa_bluetooth_device *d;
311
312 if (!(d = pa_hashmap_remove(y->devices, path)))
313 pa_log_warn("Unknown device removed %s", path);
314 else {
315 pa_log_debug("Device %s removed", path);
316 device_free(d);
317 }
318 }
319
320 static void device_remove_all(pa_bluetooth_discovery *y) {
321 pa_bluetooth_device *d;
322
323 pa_assert(y);
324
325 while ((d = pa_hashmap_steal_first(y->devices))) {
326 d->device_info_valid = -1;
327 pa_hook_fire(&y->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], d);
328 device_free(d);
329 }
330 }
331
332 static pa_bluetooth_adapter* adapter_create(pa_bluetooth_discovery *y, const char *path) {
333 pa_bluetooth_adapter *a;
334
335 pa_assert(y);
336 pa_assert(path);
337
338 a = pa_xnew0(pa_bluetooth_adapter, 1);
339 a->discovery = y;
340 a->path = pa_xstrdup(path);
341
342 pa_hashmap_put(y->adapters, a->path, a);
343
344 return a;
345 }
346
347 static void adapter_remove_all(pa_bluetooth_discovery *y) {
348 pa_bluetooth_adapter *a;
349
350 pa_assert(y);
351
352 /* When this function is called all devices have already been freed */
353
354 while ((a = pa_hashmap_steal_first(y->adapters))) {
355 pa_xfree(a->path);
356 pa_xfree(a->address);
357 pa_xfree(a);
358 }
359 }
360
361 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook) {
362 pa_assert(y);
363 pa_assert(PA_REFCNT_VALUE(y) > 0);
364
365 return &y->hooks[hook];
366 }
367
368 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
369 pa_bluetooth_discovery *y;
370 DBusError err;
371
372 pa_assert(bus);
373 pa_assert(m);
374 pa_assert_se(y = userdata);
375
376 dbus_error_init(&err);
377
378 if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
379 const char *name, *old_owner, *new_owner;
380
381 if (!dbus_message_get_args(m, &err,
382 DBUS_TYPE_STRING, &name,
383 DBUS_TYPE_STRING, &old_owner,
384 DBUS_TYPE_STRING, &new_owner,
385 DBUS_TYPE_INVALID)) {
386 pa_log_error("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
387 goto fail;
388 }
389
390 if (pa_streq(name, BLUEZ_SERVICE)) {
391 if (old_owner && *old_owner) {
392 pa_log_debug("Bluetooth daemon disappeared");
393 device_remove_all(y);
394 adapter_remove_all(y);
395 }
396
397 if (new_owner && *new_owner) {
398 pa_log_debug("Bluetooth daemon appeared");
399 /* TODO: get managed objects */
400 }
401 }
402
403 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
404 }
405
406 fail:
407 dbus_error_free(&err);
408
409 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
410 }
411
412 const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile) {
413 switch(profile) {
414 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
415 return "a2dp_sink";
416 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
417 return "a2dp_source";
418 case PA_BLUETOOTH_PROFILE_OFF:
419 return "off";
420 }
421
422 return NULL;
423 }
424
425 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
426 pa_bluetooth_discovery *y = userdata;
427 pa_bluetooth_device *d;
428 pa_bluetooth_transport *t;
429 const char *sender, *path, *endpoint_path, *dev_path = NULL, *uuid = NULL;
430 const uint8_t *config = NULL;
431 int size = 0;
432 pa_bluetooth_profile_t p = PA_BLUETOOTH_PROFILE_OFF;
433 DBusMessageIter args, props;
434 DBusMessage *r;
435
436 if (!dbus_message_iter_init(m, &args) || !pa_streq(dbus_message_get_signature(m), "oa{sv}")) {
437 pa_log_error("Invalid signature for method SetConfiguration()");
438 goto fail2;
439 }
440
441 dbus_message_iter_get_basic(&args, &path);
442
443 if (pa_hashmap_get(y->transports, path)) {
444 pa_log_error("Endpoint SetConfiguration(): Transport %s is already configured.", path);
445 goto fail2;
446 }
447
448 pa_assert_se(dbus_message_iter_next(&args));
449
450 dbus_message_iter_recurse(&args, &props);
451 if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
452 goto fail;
453
454 /* Read transport properties */
455 while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
456 const char *key;
457 DBusMessageIter value, entry;
458 int var;
459
460 dbus_message_iter_recurse(&props, &entry);
461 dbus_message_iter_get_basic(&entry, &key);
462
463 dbus_message_iter_next(&entry);
464 dbus_message_iter_recurse(&entry, &value);
465
466 var = dbus_message_iter_get_arg_type(&value);
467
468 if (pa_streq(key, "UUID")) {
469 if (var != DBUS_TYPE_STRING) {
470 pa_log_error("Property %s of wrong type %c", key, (char)var);
471 goto fail;
472 }
473
474 dbus_message_iter_get_basic(&value, &uuid);
475
476 endpoint_path = dbus_message_get_path(m);
477 if (pa_streq(endpoint_path, A2DP_SOURCE_ENDPOINT)) {
478 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE))
479 p = PA_BLUETOOTH_PROFILE_A2DP_SINK;
480 } else if (pa_streq(endpoint_path, A2DP_SINK_ENDPOINT)) {
481 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK))
482 p = PA_BLUETOOTH_PROFILE_A2DP_SOURCE;
483 }
484
485 if (p == PA_BLUETOOTH_PROFILE_OFF) {
486 pa_log_error("UUID %s of transport %s incompatible with endpoint %s", uuid, path, endpoint_path);
487 goto fail;
488 }
489 } else if (pa_streq(key, "Device")) {
490 if (var != DBUS_TYPE_OBJECT_PATH) {
491 pa_log_error("Property %s of wrong type %c", key, (char)var);
492 goto fail;
493 }
494
495 dbus_message_iter_get_basic(&value, &dev_path);
496 } else if (pa_streq(key, "Configuration")) {
497 DBusMessageIter array;
498 a2dp_sbc_t *c;
499
500 if (var != DBUS_TYPE_ARRAY) {
501 pa_log_error("Property %s of wrong type %c", key, (char)var);
502 goto fail;
503 }
504
505 dbus_message_iter_recurse(&value, &array);
506 var = dbus_message_iter_get_arg_type(&array);
507 if (var != DBUS_TYPE_BYTE) {
508 pa_log_error("%s is an array of wrong type %c", key, (char)var);
509 goto fail;
510 }
511
512 dbus_message_iter_get_fixed_array(&array, &config, &size);
513 if (size != sizeof(a2dp_sbc_t)) {
514 pa_log_error("Configuration array of invalid size");
515 goto fail;
516 }
517
518 c = (a2dp_sbc_t *) config;
519
520 if (c->frequency != SBC_SAMPLING_FREQ_16000 && c->frequency != SBC_SAMPLING_FREQ_32000 &&
521 c->frequency != SBC_SAMPLING_FREQ_44100 && c->frequency != SBC_SAMPLING_FREQ_48000) {
522 pa_log_error("Invalid sampling frequency in configuration");
523 goto fail;
524 }
525
526 if (c->channel_mode != SBC_CHANNEL_MODE_MONO && c->channel_mode != SBC_CHANNEL_MODE_DUAL_CHANNEL &&
527 c->channel_mode != SBC_CHANNEL_MODE_STEREO && c->channel_mode != SBC_CHANNEL_MODE_JOINT_STEREO) {
528 pa_log_error("Invalid channel mode in configuration");
529 goto fail;
530 }
531
532 if (c->allocation_method != SBC_ALLOCATION_SNR && c->allocation_method != SBC_ALLOCATION_LOUDNESS) {
533 pa_log_error("Invalid allocation method in configuration");
534 goto fail;
535 }
536
537 if (c->subbands != SBC_SUBBANDS_4 && c->subbands != SBC_SUBBANDS_8) {
538 pa_log_error("Invalid SBC subbands in configuration");
539 goto fail;
540 }
541
542 if (c->block_length != SBC_BLOCK_LENGTH_4 && c->block_length != SBC_BLOCK_LENGTH_8 &&
543 c->block_length != SBC_BLOCK_LENGTH_12 && c->block_length != SBC_BLOCK_LENGTH_16) {
544 pa_log_error("Invalid block length in configuration");
545 goto fail;
546 }
547 }
548
549 dbus_message_iter_next(&props);
550 }
551
552 if ((d = pa_hashmap_get(y->devices, dev_path))) {
553 if (d->device_info_valid == -1) {
554 pa_log_error("Information about device %s is invalid", dev_path);
555 goto fail2;
556 }
557 } else {
558 /* InterfacesAdded signal is probably on it's way, device_info_valid is kept as 0. */
559 pa_log_warn("SetConfiguration() received for unknown device %s", dev_path);
560 d = device_create(y, dev_path);
561 }
562
563 if (d->transports[p] != NULL) {
564 pa_log_error("Cannot configure transport %s because profile %s is already used", path, pa_bluetooth_profile_to_string(p));
565 goto fail2;
566 }
567
568 sender = dbus_message_get_sender(m);
569
570 pa_assert_se(r = dbus_message_new_method_return(m));
571 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
572 dbus_message_unref(r);
573
574 d->transports[p] = t = pa_bluetooth_transport_new(d, sender, path, p, config, size);
575 t->acquire = bluez5_transport_acquire_cb;
576 t->release = bluez5_transport_release_cb;
577 pa_bluetooth_transport_put(t);
578
579 pa_log_debug("Transport %s available for profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
580
581 return NULL;
582
583 fail:
584 pa_log_error("Endpoint SetConfiguration(): invalid arguments");
585
586 fail2:
587 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to set configuration"));
588 return r;
589 }
590
591 static DBusMessage *endpoint_select_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
592 DBusMessage *r;
593
594 pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
595 "Method not implemented"));
596
597 return r;
598 }
599
600 static DBusMessage *endpoint_clear_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
601 DBusMessage *r;
602
603 pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
604 "Method not implemented"));
605
606 return r;
607 }
608
609 static DBusMessage *endpoint_release(DBusConnection *conn, DBusMessage *m, void *userdata) {
610 DBusMessage *r;
611
612 pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
613 "Method not implemented"));
614
615 return r;
616 }
617
618 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
619 struct pa_bluetooth_discovery *y = userdata;
620 DBusMessage *r = NULL;
621 const char *path, *interface, *member;
622
623 pa_assert(y);
624
625 path = dbus_message_get_path(m);
626 interface = dbus_message_get_interface(m);
627 member = dbus_message_get_member(m);
628
629 pa_log_debug("dbus: path=%s, interface=%s, member=%s", path, interface, member);
630
631 if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT))
632 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
633
634 if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
635 const char *xml = ENDPOINT_INTROSPECT_XML;
636
637 pa_assert_se(r = dbus_message_new_method_return(m));
638 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_STRING, &xml, DBUS_TYPE_INVALID));
639
640 } else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SetConfiguration"))
641 r = endpoint_set_configuration(c, m, userdata);
642 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SelectConfiguration"))
643 r = endpoint_select_configuration(c, m, userdata);
644 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "ClearConfiguration"))
645 r = endpoint_clear_configuration(c, m, userdata);
646 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "Release"))
647 r = endpoint_release(c, m, userdata);
648 else
649 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
650
651 if (r) {
652 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
653 dbus_message_unref(r);
654 }
655
656 return DBUS_HANDLER_RESULT_HANDLED;
657 }
658
659 static void endpoint_init(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
660 static const DBusObjectPathVTable vtable_endpoint = {
661 .message_function = endpoint_handler,
662 };
663
664 pa_assert(y);
665
666 switch(profile) {
667 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
668 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT,
669 &vtable_endpoint, y));
670 break;
671 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
672 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT,
673 &vtable_endpoint, y));
674 break;
675 default:
676 pa_assert_not_reached();
677 break;
678 }
679 }
680
681 static void endpoint_done(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
682 pa_assert(y);
683
684 switch(profile) {
685 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
686 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
687 break;
688 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
689 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
690 break;
691 default:
692 pa_assert_not_reached();
693 break;
694 }
695 }
696
697 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
698 pa_bluetooth_discovery *y;
699 DBusError err;
700 DBusConnection *conn;
701 unsigned i;
702
703 if ((y = pa_shared_get(c, "bluetooth-discovery")))
704 return pa_bluetooth_discovery_ref(y);
705
706 y = pa_xnew0(pa_bluetooth_discovery, 1);
707 PA_REFCNT_INIT(y);
708 y->core = c;
709 y->adapters = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
710 y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
711 y->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
712
713 for (i = 0; i < PA_BLUETOOTH_HOOK_MAX; i++)
714 pa_hook_init(&y->hooks[i], y);
715
716 pa_shared_set(c, "bluetooth-discovery", y);
717
718 dbus_error_init(&err);
719
720 if (!(y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err))) {
721 pa_log_error("Failed to get D-Bus connection: %s", err.message);
722 goto fail;
723 }
724
725 conn = pa_dbus_connection_get(y->connection);
726
727 /* dynamic detection of bluetooth audio devices */
728 if (!dbus_connection_add_filter(conn, filter_cb, y, NULL)) {
729 pa_log_error("Failed to add filter function");
730 goto fail;
731 }
732 y->filter_added = true;
733
734 if (pa_dbus_add_matches(conn, &err,
735 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'"
736 ",arg0='" BLUEZ_SERVICE "'",
737 NULL) < 0) {
738 pa_log_error("Failed to add D-Bus matches: %s", err.message);
739 goto fail;
740 }
741 y->matches_added = true;
742
743 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
744 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
745
746 return y;
747
748 fail:
749 pa_bluetooth_discovery_unref(y);
750 dbus_error_free(&err);
751
752 return NULL;
753 }
754
755 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
756 pa_assert(y);
757 pa_assert(PA_REFCNT_VALUE(y) > 0);
758
759 PA_REFCNT_INC(y);
760
761 return y;
762 }
763
764 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
765 pa_assert(y);
766 pa_assert(PA_REFCNT_VALUE(y) > 0);
767
768 if (PA_REFCNT_DEC(y) > 0)
769 return;
770
771 if (y->devices) {
772 device_remove_all(y);
773 pa_hashmap_free(y->devices);
774 }
775
776 if (y->adapters) {
777 adapter_remove_all(y);
778 pa_hashmap_free(y->adapters);
779 }
780
781 if (y->transports) {
782 pa_assert(pa_hashmap_isempty(y->transports));
783 pa_hashmap_free(y->transports);
784 }
785
786 if (y->connection) {
787
788 if (y->matches_added)
789 pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
790 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
791 "arg0='" BLUEZ_SERVICE "'",
792 NULL);
793
794 if (y->filter_added)
795 dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
796
797 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
798 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
799
800 pa_dbus_connection_unref(y->connection);
801 }
802
803 pa_shared_remove(y->core, "bluetooth-discovery");
804 pa_xfree(y);
805 }