code.delx.au - pulseaudio/blob - src/modules/bluetooth/bluetooth-util.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2008 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 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 <modules/dbus-util.h>
  28
  29 #include "bluetooth-util.h"
  30
  31 enum mode {
  32     MODE_FIND,
  33     MODE_GET,
  34     MODE_DISCOVER
  35 };
  36
  37 struct pa_bluetooth_discovery {
  38     DBusConnection *connection;
  39     PA_LLIST_HEAD(pa_dbus_pending, pending);
  40
  41     enum mode mode;
  42
  43     /* If mode == MODE_FIND look for a specific device by its address.
  44        If mode == MODE_GET look for a specific device by its path. */
  45     const char *looking_for;
  46     pa_bluetooth_device *found_device;
  47
  48     /* If looking_for is NULL we do long-time discovery */
  49     pa_hashmap *devices;
  50     pa_bluetooth_device_callback_t callback;
  51     struct userdata *userdata;
  52 };
  53
  54 static pa_bluetooth_uuid *uuid_new(const char *uuid) {
  55     pa_bluetooth_uuid *u;
  56
  57     u = pa_xnew(pa_bluetooth_uuid, 1);
  58     u->uuid = pa_xstrdup(uuid);
  59     PA_LLIST_INIT(pa_bluetooth_uuid, u);
  60
  61     return u;
  62 }
  63
  64 static void uuid_free(pa_bluetooth_uuid *u) {
  65     pa_assert(u);
  66
  67     pa_xfree(u->uuid);
  68     pa_xfree(u);
  69 }
  70
  71 static pa_bluetooth_device* device_new(const char *path) {
  72     pa_bluetooth_device *d;
  73
  74     d = pa_xnew(pa_bluetooth_device, 1);
  75
  76     d->device_info_valid = d->audio_sink_info_valid = d->headset_info_valid = 0;
  77
  78     d->data = NULL;
  79
  80     d->name = NULL;
  81     d->path = pa_xstrdup(path);
  82     d->paired = -1;
  83     d->alias = NULL;
  84     d->device_connected = -1;
  85     PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
  86     d->address = NULL;
  87     d->class = -1;
  88     d->trusted = -1;
  89
  90     d->audio_sink_connected = -1;
  91
  92     d->headset_connected = -1;
  93
  94     return d;
  95 }
  96
  97 void pa_bluetooth_device_free(pa_bluetooth_device *d) {
  98     pa_bluetooth_uuid *u;
  99
 100     pa_assert(d);
 101
 102     while ((u = d->uuids)) {
 103         PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
 104         uuid_free(u);
 105     }
 106
 107     pa_xfree(d->name);
 108     pa_xfree(d->path);
 109     pa_xfree(d->alias);
 110     pa_xfree(d->address);
 111     pa_xfree(d);
 112 }
 113
 114 static pa_bool_t device_is_loaded(pa_bluetooth_device *d) {
 115     pa_assert(d);
 116
 117     return d->device_info_valid && d->audio_sink_info_valid && d->headset_info_valid;
 118 }
 119
 120 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 121     pa_assert(d);
 122
 123     pa_assert(d->device_info_valid);
 124     pa_assert(d->audio_sink_info_valid);
 125     pa_assert(d->headset_info_valid);
 126
 127     return d->device_info_valid > 0 &&
 128         (d->audio_sink_info_valid > 0 || d->headset_info_valid > 0);
 129 }
 130
 131 static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
 132     const char *key;
 133     DBusMessageIter variant_i;
 134
 135     pa_assert(y);
 136     pa_assert(d);
 137     pa_assert(i);
 138
 139     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 140         pa_log("Property name not a string.");
 141         return -1;
 142     }
 143
 144     dbus_message_iter_get_basic(i, &key);
 145
 146     if (!dbus_message_iter_next(i))  {
 147         pa_log("Property value missing");
 148         return -1;
 149     }
 150
 151     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 152         pa_log("Property value not a variant.");
 153         return -1;
 154     }
 155
 156     dbus_message_iter_recurse(i, &variant_i);
 157
 158     pa_log_debug("Parsing property org.bluez.Device.%s", key);
 159
 160     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 161
 162         case DBUS_TYPE_STRING: {
 163
 164             const char *value;
 165             dbus_message_iter_get_basic(&variant_i, &value);
 166
 167             if (pa_streq(key, "Name")) {
 168                 pa_xfree(d->name);
 169                 d->name = pa_xstrdup(value);
 170             } else if (pa_streq(key, "Alias")) {
 171                 pa_xfree(d->alias);
 172                 d->alias = pa_xstrdup(value);
 173             } else if (pa_streq(key, "Address")) {
 174                 pa_xfree(d->address);
 175                 d->address = pa_xstrdup(value);
 176             }
 177
 178             pa_log_debug("Value %s", value);
 179
 180             break;
 181         }
 182
 183         case DBUS_TYPE_BOOLEAN: {
 184
 185             dbus_bool_t value;
 186             dbus_message_iter_get_basic(&variant_i, &value);
 187
 188             if (pa_streq(key, "Paired"))
 189                 d->paired = !!value;
 190             else if (pa_streq(key, "Connected"))
 191                 d->device_connected = !!value;
 192             else if (pa_streq(key, "Trusted"))
 193                 d->trusted = !!value;
 194
 195             pa_log_debug("Value %s", pa_yes_no(value));
 196
 197             break;
 198         }
 199
 200         case DBUS_TYPE_UINT32: {
 201
 202             uint32_t value;
 203             dbus_message_iter_get_basic(&variant_i, &value);
 204
 205             if (pa_streq(key, "Class"))
 206                 d->class = (int) value;
 207
 208             pa_log_debug("Value %u", (unsigned) value);
 209
 210             break;
 211         }
 212
 213         case DBUS_TYPE_ARRAY: {
 214
 215             DBusMessageIter ai;
 216             dbus_message_iter_recurse(&variant_i, &ai);
 217
 218             if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
 219                 pa_streq(key, "UUIDs")) {
 220
 221                 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
 222                     pa_bluetooth_uuid *node;
 223                     const char *value;
 224
 225                     dbus_message_iter_get_basic(&ai, &value);
 226                     node = uuid_new(value);
 227                     PA_LLIST_PREPEND(pa_bluetooth_uuid, d->uuids, node);
 228
 229                     if (!dbus_message_iter_next(&ai))
 230                         break;
 231                 }
 232             }
 233
 234             break;
 235         }
 236     }
 237
 238     return 0;
 239 }
 240
 241 static int parse_audio_property(pa_bluetooth_discovery *u, int *connected, DBusMessageIter *i) {
 242     const char *key;
 243     DBusMessageIter variant_i;
 244
 245     pa_assert(u);
 246     pa_assert(connected);
 247     pa_assert(i);
 248
 249     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 250         pa_log("Property name not a string.");
 251         return -1;
 252     }
 253
 254     dbus_message_iter_get_basic(i, &key);
 255
 256     if (!dbus_message_iter_next(i))  {
 257         pa_log("Property value missing");
 258         return -1;
 259     }
 260
 261     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 262         pa_log("Property value not a variant.");
 263         return -1;
 264     }
 265
 266     dbus_message_iter_recurse(i, &variant_i);
 267
 268     pa_log_debug("Parsing property org.bluez.{AudioSink|Headset}.%s", key);
 269
 270     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 271
 272         case DBUS_TYPE_BOOLEAN: {
 273
 274             dbus_bool_t value;
 275             dbus_message_iter_get_basic(&variant_i, &value);
 276
 277             if (pa_streq(key, "Connected"))
 278                 *connected = !!value;
 279
 280             pa_log_debug("Value %s", pa_yes_no(value));
 281
 282             break;
 283         }
 284     }
 285
 286     return 0;
 287 }
 288
 289
 290 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t good) {
 291     pa_assert(y);
 292     pa_assert(d);
 293
 294     if (y->mode != MODE_DISCOVER)
 295         return;
 296
 297     if (!device_is_loaded(d))
 298         return;
 299
 300     if (!device_is_audio(d))
 301         return;
 302
 303     y->callback(y->userdata, d, good);
 304
 305 }
 306
 307 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 308     DBusMessage *r;
 309     DBusMessageIter arg_i, element_i;
 310     pa_dbus_pending *p;
 311     pa_bluetooth_device *d;
 312     pa_bluetooth_discovery *y;
 313     int valid;
 314
 315     pa_assert_se(p = userdata);
 316     pa_assert_se(y = p->context_data);
 317     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 318
 319 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 320 /*                  dbus_message_get_interface(p->message), */
 321 /*                  dbus_message_get_path(p->message)); */
 322
 323     d = p->call_data;
 324
 325     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 326
 327     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 328         d->device_info_valid = valid;
 329     else if (dbus_message_is_method_call(p->message, "org.bluez.Headset", "GetProperties"))
 330         d->headset_info_valid = valid;
 331     else if (dbus_message_is_method_call(p->message, "org.bluez.AudioSink", "GetProperties"))
 332         d->audio_sink_info_valid = valid;
 333
 334     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 335
 336         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 337             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 338
 339         goto finish;
 340     }
 341
 342     if (!dbus_message_iter_init(r, &arg_i)) {
 343         pa_log("GetProperties reply has no arguments.");
 344         goto finish;
 345     }
 346
 347     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 348         pa_log("GetProperties argument is not an array.");
 349         goto finish;
 350     }
 351
 352     dbus_message_iter_recurse(&arg_i, &element_i);
 353     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 354
 355         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 356             DBusMessageIter dict_i;
 357
 358             dbus_message_iter_recurse(&element_i, &dict_i);
 359
 360             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 361                 if (parse_device_property(y, d, &dict_i) < 0)
 362                     goto finish;
 363
 364             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 365                 if (parse_audio_property(y, &d->headset_connected, &dict_i) < 0)
 366                     goto finish;
 367
 368             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 369                 if (parse_audio_property(y, &d->audio_sink_connected, &dict_i) < 0)
 370                     goto finish;
 371             }
 372         }
 373
 374         if (!dbus_message_iter_next(&element_i))
 375             break;
 376     }
 377
 378 finish:
 379     run_callback(y, d, TRUE);
 380
 381     dbus_message_unref(r);
 382
 383     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 384     pa_dbus_pending_free(p);
 385 }
 386
 387 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 388     pa_dbus_pending *p;
 389     DBusPendingCall *call;
 390
 391     pa_assert(y);
 392     pa_assert(m);
 393
 394     pa_assert_se(dbus_connection_send_with_reply(y->connection, m, &call, -1));
 395
 396     p = pa_dbus_pending_new(m, call, y, d);
 397     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 398     dbus_pending_call_set_notify(call, func, p, NULL);
 399
 400     return p;
 401 }
 402
 403 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 404     DBusMessage *m;
 405     pa_bluetooth_device *d;
 406
 407     pa_assert(y);
 408     pa_assert(path);
 409
 410     d = device_new(path);
 411
 412     if (y->mode == MODE_DISCOVER) {
 413         pa_assert(y->devices);
 414         pa_hashmap_put(y->devices, d->path, d);
 415     } else {
 416         pa_assert(!y->found_device);
 417         y->found_device = d;
 418     }
 419
 420     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 421     send_and_add_to_pending(y, d, m, get_properties_reply);
 422
 423     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Headset", "GetProperties"));
 424     send_and_add_to_pending(y, d, m, get_properties_reply);
 425
 426     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.AudioSink", "GetProperties"));
 427     send_and_add_to_pending(y, d, m, get_properties_reply);
 428 }
 429
 430 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 431     DBusError e;
 432     DBusMessage *r;
 433     char **paths = NULL;
 434     int num = -1;
 435     pa_dbus_pending *p;
 436     pa_bluetooth_discovery *y;
 437
 438     pa_assert(pending);
 439
 440     dbus_error_init(&e);
 441
 442     pa_assert_se(p = userdata);
 443     pa_assert_se(y = p->context_data);
 444     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 445
 446     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 447         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 448         goto end;
 449     }
 450
 451     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 452         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 453         dbus_error_free(&e);
 454     } else {
 455         int i;
 456
 457         for (i = 0; i < num; ++i)
 458             found_device(y, paths[i]);
 459     }
 460
 461 end:
 462     if (paths)
 463         dbus_free_string_array (paths);
 464
 465     dbus_message_unref(r);
 466
 467     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 468     pa_dbus_pending_free(p);
 469 }
 470
 471 static void find_device_reply(DBusPendingCall *pending, void *userdata) {
 472     DBusError e;
 473     DBusMessage *r;
 474     char *path = NULL;
 475     pa_dbus_pending *p;
 476     pa_bluetooth_discovery *y;
 477
 478     pa_assert(pending);
 479
 480     dbus_error_init(&e);
 481
 482     pa_assert_se(p = userdata);
 483     pa_assert_se(y = p->context_data);
 484     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 485
 486     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 487         pa_log("Error from FindDevice reply: %s", dbus_message_get_error_name(r));
 488         goto end;
 489     }
 490
 491     if (!dbus_message_get_args(r, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 492         pa_log("org.bluez.Adapter.FindDevice returned an error: '%s'\n", e.message);
 493         dbus_error_free(&e);
 494     } else
 495         found_device(y, path);
 496
 497 end:
 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 void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 505     DBusMessage *m;
 506
 507     if (y->mode == MODE_FIND) {
 508         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "FindDevice"));
 509
 510         pa_assert_se(dbus_message_append_args(m,
 511                                               DBUS_TYPE_STRING, &y->looking_for,
 512                                               DBUS_TYPE_INVALID));
 513
 514         send_and_add_to_pending(y, NULL, m, find_device_reply);
 515
 516     } else {
 517         pa_assert(y->mode == MODE_DISCOVER);
 518
 519         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 520         send_and_add_to_pending(y, NULL, m, list_devices_reply);
 521     }
 522 }
 523
 524 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 525     DBusError e;
 526     DBusMessage *r;
 527     char **paths = NULL;
 528     int num = -1;
 529     pa_dbus_pending *p;
 530     pa_bluetooth_discovery *y;
 531
 532     pa_assert(pending);
 533
 534     dbus_error_init(&e);
 535
 536     pa_assert_se(p = userdata);
 537     pa_assert_se(y = p->context_data);
 538     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 539
 540     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 541         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 542         goto end;
 543     }
 544
 545     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 546         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 547         dbus_error_free(&e);
 548     } else {
 549         int i;
 550
 551         for (i = 0; i < num; ++i)
 552             found_adapter(y, paths[i]);
 553     }
 554
 555 end:
 556     if (paths)
 557         dbus_free_string_array (paths);
 558
 559     dbus_message_unref(r);
 560
 561     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 562     pa_dbus_pending_free(p);
 563 }
 564
 565 static void list_adapters(pa_bluetooth_discovery *y) {
 566     DBusMessage *m;
 567     pa_assert(y);
 568
 569     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 570     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 571 }
 572
 573 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 574     DBusError err;
 575     pa_bluetooth_discovery *y;
 576
 577     pa_assert(bus);
 578     pa_assert(m);
 579
 580     pa_assert_se(y = userdata);
 581
 582     dbus_error_init(&err);
 583
 584     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 585             dbus_message_get_interface(m),
 586             dbus_message_get_path(m),
 587             dbus_message_get_member(m));
 588
 589     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 590         const char *path;
 591         pa_bluetooth_device *d;
 592
 593         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 594             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 595             goto fail;
 596         }
 597
 598         pa_log_debug("Device %s removed", path);
 599
 600         if ((d = pa_hashmap_remove(y->devices, path))) {
 601
 602             pa_assert_se(y->mode == MODE_DISCOVER);
 603             run_callback(y, d, FALSE);
 604
 605             pa_bluetooth_device_free(d);
 606         }
 607
 608         return DBUS_HANDLER_RESULT_HANDLED;
 609
 610     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 611         const char *path;
 612
 613         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 614             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 615             goto fail;
 616         }
 617
 618         pa_log_debug("Device %s created", path);
 619
 620         found_device(y, path);
 621         return DBUS_HANDLER_RESULT_HANDLED;
 622
 623     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 624         const char *path;
 625
 626         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 627             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 628             goto fail;
 629         }
 630
 631         pa_log_debug("Adapter %s created", path);
 632
 633         found_adapter(y, path);
 634         return DBUS_HANDLER_RESULT_HANDLED;
 635
 636     } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 637                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 638                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 639
 640         pa_bluetooth_device *d;
 641
 642         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 643             DBusMessageIter arg_i;
 644
 645             if (!dbus_message_iter_init(m, &arg_i)) {
 646                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 647                 goto fail;
 648             }
 649
 650             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 651                 if (parse_device_property(y, d, &arg_i) < 0)
 652                     goto fail;
 653
 654             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 655                 if (parse_audio_property(y, &d->headset_connected, &arg_i) < 0)
 656                     goto fail;
 657
 658             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 659                 if (parse_audio_property(y, &d->audio_sink_connected, &arg_i) < 0)
 660                     goto fail;
 661             }
 662
 663             pa_assert_se(y->mode == MODE_DISCOVER);
 664             run_callback(y, d, TRUE);
 665         }
 666
 667         return DBUS_HANDLER_RESULT_HANDLED;
 668     }
 669
 670 fail:
 671     dbus_error_free(&err);
 672
 673     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 674 }
 675
 676 pa_bluetooth_device* pa_bluetooth_find_device(DBusConnection *c, const char* address) {
 677     pa_bluetooth_discovery y;
 678
 679     memset(&y, 0, sizeof(y));
 680     y.mode = MODE_FIND;
 681     y.looking_for = address;
 682     y.connection = c;
 683     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 684
 685     list_adapters(&y);
 686
 687     pa_dbus_sync_pending_list(&y.pending);
 688     pa_assert(!y.pending);
 689
 690     if (y.found_device) {
 691         pa_assert(device_is_loaded(y.found_device));
 692
 693         if (!device_is_audio(y.found_device)) {
 694             pa_bluetooth_device_free(y.found_device);
 695             return NULL;
 696         }
 697     }
 698
 699     return y.found_device;
 700 }
 701
 702 pa_bluetooth_device* pa_bluetooth_get_device(DBusConnection *c, const char* path) {
 703     pa_bluetooth_discovery y;
 704
 705     memset(&y, 0, sizeof(y));
 706     y.mode = MODE_GET;
 707     y.connection = c;
 708     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 709
 710     found_device(&y, path);
 711
 712     pa_dbus_sync_pending_list(&y.pending);
 713     pa_assert(!y.pending);
 714
 715     if (y.found_device) {
 716         pa_assert(device_is_loaded(y.found_device));
 717
 718         if (!device_is_audio(y.found_device)) {
 719             pa_bluetooth_device_free(y.found_device);
 720             return NULL;
 721         }
 722     }
 723
 724     return y.found_device;
 725 }
 726
 727 pa_bluetooth_discovery* pa_bluetooth_discovery_new(DBusConnection *c, pa_bluetooth_device_callback_t cb, struct userdata *u) {
 728     DBusError err;
 729     pa_bluetooth_discovery *y;
 730
 731     pa_assert(c);
 732     pa_assert(cb);
 733
 734     dbus_error_init(&err);
 735
 736     y = pa_xnew0(pa_bluetooth_discovery, 1);
 737     y->mode = MODE_DISCOVER;
 738     y->connection = c;
 739     y->callback = cb;
 740     y->userdata = u;
 741     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 742     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
 743
 744     /* dynamic detection of bluetooth audio devices */
 745     if (!dbus_connection_add_filter(c, filter_cb, y, NULL)) {
 746         pa_log_error("Failed to add filter function");
 747         goto fail;
 748     }
 749
 750     if (pa_dbus_add_matches(
 751                 c, &err,
 752                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 753                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 754                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 755                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 756                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 757                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 758         pa_log("Failed to add D-Bus matches: %s", err.message);
 759         goto fail;
 760     }
 761
 762     list_adapters(y);
 763
 764     return y;
 765
 766 fail:
 767     dbus_error_free(&err);
 768     return NULL;
 769 }
 770
 771 void pa_bluetooth_discovery_free(pa_bluetooth_discovery *y) {
 772     pa_bluetooth_device *d;
 773
 774     pa_assert(y);
 775
 776     pa_dbus_free_pending_list(&y->pending);
 777
 778     if (y->devices) {
 779         while ((d = pa_hashmap_steal_first(y->devices))) {
 780             run_callback(y, d, FALSE);
 781             pa_bluetooth_device_free(d);
 782         }
 783
 784         pa_hashmap_free(y->devices, NULL, NULL);
 785     }
 786
 787     if (y->connection) {
 788         pa_dbus_remove_matches(y->connection,
 789                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 790                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 791                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 792                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 793                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 794                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 795                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 796
 797         dbus_connection_remove_filter(y->connection, filter_cb, y);
 798     }
 799 }
 800
 801 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 802     pa_assert(y);
 803
 804     pa_dbus_sync_pending_list(&y->pending);
 805 }