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 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <pulsecore/core-util.h>
  27 #include <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
 118         d->device_info_valid &&
 119         d->audio_sink_info_valid &&
 120         d->headset_info_valid;
 121 }
 122
 123 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 124     pa_assert(d);
 125
 126     pa_assert(d->device_info_valid);
 127     pa_assert(d->audio_sink_info_valid);
 128     pa_assert(d->headset_info_valid);
 129
 130     return d->device_info_valid > 0 &&
 131         (d->audio_sink_info_valid > 0 || d->headset_info_valid > 0);
 132 }
 133
 134 static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
 135     const char *key;
 136     DBusMessageIter variant_i;
 137
 138     pa_assert(y);
 139     pa_assert(d);
 140     pa_assert(i);
 141
 142     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 143         pa_log("Property name not a string.");
 144         return -1;
 145     }
 146
 147     dbus_message_iter_get_basic(i, &key);
 148
 149     if (!dbus_message_iter_next(i))  {
 150         pa_log("Property value missing");
 151         return -1;
 152     }
 153
 154     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 155         pa_log("Property value not a variant.");
 156         return -1;
 157     }
 158
 159     dbus_message_iter_recurse(i, &variant_i);
 160
 161 /*     pa_log_debug("Parsing property org.bluez.Device.%s", key); */
 162
 163     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 164
 165         case DBUS_TYPE_STRING: {
 166
 167             const char *value;
 168             dbus_message_iter_get_basic(&variant_i, &value);
 169
 170             if (pa_streq(key, "Name")) {
 171                 pa_xfree(d->name);
 172                 d->name = pa_xstrdup(value);
 173             } else if (pa_streq(key, "Alias")) {
 174                 pa_xfree(d->alias);
 175                 d->alias = pa_xstrdup(value);
 176             } else if (pa_streq(key, "Address")) {
 177                 pa_xfree(d->address);
 178                 d->address = pa_xstrdup(value);
 179             }
 180
 181 /*             pa_log_debug("Value %s", value); */
 182
 183             break;
 184         }
 185
 186         case DBUS_TYPE_BOOLEAN: {
 187
 188             dbus_bool_t value;
 189             dbus_message_iter_get_basic(&variant_i, &value);
 190
 191             if (pa_streq(key, "Paired"))
 192                 d->paired = !!value;
 193             else if (pa_streq(key, "Connected"))
 194                 d->device_connected = !!value;
 195             else if (pa_streq(key, "Trusted"))
 196                 d->trusted = !!value;
 197
 198 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 199
 200             break;
 201         }
 202
 203         case DBUS_TYPE_UINT32: {
 204
 205             uint32_t value;
 206             dbus_message_iter_get_basic(&variant_i, &value);
 207
 208             if (pa_streq(key, "Class"))
 209                 d->class = (int) value;
 210
 211 /*             pa_log_debug("Value %u", (unsigned) value); */
 212
 213             break;
 214         }
 215
 216         case DBUS_TYPE_ARRAY: {
 217
 218             DBusMessageIter ai;
 219             dbus_message_iter_recurse(&variant_i, &ai);
 220
 221             if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
 222                 pa_streq(key, "UUIDs")) {
 223
 224                 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
 225                     pa_bluetooth_uuid *node;
 226                     const char *value;
 227
 228                     dbus_message_iter_get_basic(&ai, &value);
 229                     node = uuid_new(value);
 230                     PA_LLIST_PREPEND(pa_bluetooth_uuid, d->uuids, node);
 231
 232                     if (!dbus_message_iter_next(&ai))
 233                         break;
 234                 }
 235             }
 236
 237             break;
 238         }
 239     }
 240
 241     return 0;
 242 }
 243
 244 static int parse_audio_property(pa_bluetooth_discovery *u, int *connected, DBusMessageIter *i) {
 245     const char *key;
 246     DBusMessageIter variant_i;
 247
 248     pa_assert(u);
 249     pa_assert(connected);
 250     pa_assert(i);
 251
 252     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 253         pa_log("Property name not a string.");
 254         return -1;
 255     }
 256
 257     dbus_message_iter_get_basic(i, &key);
 258
 259     if (!dbus_message_iter_next(i))  {
 260         pa_log("Property value missing");
 261         return -1;
 262     }
 263
 264     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 265         pa_log("Property value not a variant.");
 266         return -1;
 267     }
 268
 269     dbus_message_iter_recurse(i, &variant_i);
 270
 271 /*     pa_log_debug("Parsing property org.bluez.{AudioSink|Headset}.%s", key); */
 272
 273     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 274
 275         case DBUS_TYPE_BOOLEAN: {
 276
 277             dbus_bool_t value;
 278             dbus_message_iter_get_basic(&variant_i, &value);
 279
 280             if (pa_streq(key, "Connected"))
 281                 *connected = !!value;
 282
 283 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 284
 285             break;
 286         }
 287     }
 288
 289     return 0;
 290 }
 291
 292 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t good) {
 293     pa_assert(y);
 294     pa_assert(d);
 295
 296     if (y->mode != MODE_DISCOVER)
 297         return;
 298
 299     if (!device_is_loaded(d))
 300         return;
 301
 302     if (!device_is_audio(d))
 303         return;
 304
 305     y->callback(y->userdata, d, good);
 306 }
 307
 308 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 309     DBusMessage *r;
 310     DBusMessageIter arg_i, element_i;
 311     pa_dbus_pending *p;
 312     pa_bluetooth_device *d;
 313     pa_bluetooth_discovery *y;
 314     int valid;
 315
 316     pa_assert_se(p = userdata);
 317     pa_assert_se(y = p->context_data);
 318     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 319
 320 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 321 /*                  dbus_message_get_interface(p->message), */
 322 /*                  dbus_message_get_path(p->message)); */
 323
 324     d = p->call_data;
 325
 326     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 327
 328     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 329         d->device_info_valid = valid;
 330     else if (dbus_message_is_method_call(p->message, "org.bluez.Headset", "GetProperties"))
 331         d->headset_info_valid = valid;
 332     else if (dbus_message_is_method_call(p->message, "org.bluez.AudioSink", "GetProperties"))
 333         d->audio_sink_info_valid = valid;
 334
 335     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 336
 337         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 338             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 339
 340         goto finish;
 341     }
 342
 343     if (!dbus_message_iter_init(r, &arg_i)) {
 344         pa_log("GetProperties reply has no arguments.");
 345         goto finish;
 346     }
 347
 348     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 349         pa_log("GetProperties argument is not an array.");
 350         goto finish;
 351     }
 352
 353     dbus_message_iter_recurse(&arg_i, &element_i);
 354     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 355
 356         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 357             DBusMessageIter dict_i;
 358
 359             dbus_message_iter_recurse(&element_i, &dict_i);
 360
 361             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 362                 if (parse_device_property(y, d, &dict_i) < 0)
 363                     goto finish;
 364
 365             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 366                 if (parse_audio_property(y, &d->headset_connected, &dict_i) < 0)
 367                     goto finish;
 368
 369             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 370                 if (parse_audio_property(y, &d->audio_sink_connected, &dict_i) < 0)
 371                     goto finish;
 372             }
 373         }
 374
 375         if (!dbus_message_iter_next(&element_i))
 376             break;
 377     }
 378
 379 finish:
 380     run_callback(y, d, TRUE);
 381
 382     dbus_message_unref(r);
 383
 384     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 385     pa_dbus_pending_free(p);
 386 }
 387
 388 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 389     pa_dbus_pending *p;
 390     DBusPendingCall *call;
 391
 392     pa_assert(y);
 393     pa_assert(m);
 394
 395     pa_assert_se(dbus_connection_send_with_reply(y->connection, m, &call, -1));
 396
 397     p = pa_dbus_pending_new(y->connection, m, call, y, d);
 398     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 399     dbus_pending_call_set_notify(call, func, p, NULL);
 400
 401     return p;
 402 }
 403
 404 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 405     DBusMessage *m;
 406     pa_bluetooth_device *d;
 407
 408     pa_assert(y);
 409     pa_assert(path);
 410
 411     d = device_new(path);
 412
 413     if (y->mode == MODE_DISCOVER) {
 414         pa_assert(y->devices);
 415         pa_hashmap_put(y->devices, d->path, d);
 416     } else {
 417         pa_assert(!y->found_device);
 418         y->found_device = d;
 419     }
 420
 421     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 422     send_and_add_to_pending(y, d, m, get_properties_reply);
 423
 424     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Headset", "GetProperties"));
 425     send_and_add_to_pending(y, d, m, get_properties_reply);
 426
 427     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.AudioSink", "GetProperties"));
 428     send_and_add_to_pending(y, d, m, get_properties_reply);
 429 }
 430
 431 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 432     DBusError e;
 433     DBusMessage *r;
 434     char **paths = NULL;
 435     int num = -1;
 436     pa_dbus_pending *p;
 437     pa_bluetooth_discovery *y;
 438
 439     pa_assert(pending);
 440
 441     dbus_error_init(&e);
 442
 443     pa_assert_se(p = userdata);
 444     pa_assert_se(y = p->context_data);
 445     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 446
 447     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 448         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 449         goto end;
 450     }
 451
 452     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 453         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 454         dbus_error_free(&e);
 455     } else {
 456         int i;
 457
 458         for (i = 0; i < num; ++i)
 459             found_device(y, paths[i]);
 460     }
 461
 462 end:
 463     if (paths)
 464         dbus_free_string_array (paths);
 465
 466     dbus_message_unref(r);
 467
 468     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 469     pa_dbus_pending_free(p);
 470 }
 471
 472 static void find_device_reply(DBusPendingCall *pending, void *userdata) {
 473     DBusError e;
 474     DBusMessage *r;
 475     char *path = NULL;
 476     pa_dbus_pending *p;
 477     pa_bluetooth_discovery *y;
 478
 479     pa_assert(pending);
 480
 481     dbus_error_init(&e);
 482
 483     pa_assert_se(p = userdata);
 484     pa_assert_se(y = p->context_data);
 485     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 486
 487     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 488         pa_log("Error from FindDevice reply: %s", dbus_message_get_error_name(r));
 489         goto end;
 490     }
 491
 492     if (!dbus_message_get_args(r, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 493         pa_log("org.bluez.Adapter.FindDevice returned an error: '%s'\n", e.message);
 494         dbus_error_free(&e);
 495     } else
 496         found_device(y, path);
 497
 498 end:
 499     dbus_message_unref(r);
 500
 501     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 502     pa_dbus_pending_free(p);
 503 }
 504
 505 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 506     DBusMessage *m;
 507
 508     if (y->mode == MODE_FIND) {
 509         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "FindDevice"));
 510
 511         pa_assert_se(dbus_message_append_args(m,
 512                                               DBUS_TYPE_STRING, &y->looking_for,
 513                                               DBUS_TYPE_INVALID));
 514
 515         send_and_add_to_pending(y, NULL, m, find_device_reply);
 516
 517     } else {
 518         pa_assert(y->mode == MODE_DISCOVER);
 519
 520         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 521         send_and_add_to_pending(y, NULL, m, list_devices_reply);
 522     }
 523 }
 524
 525 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 526     DBusError e;
 527     DBusMessage *r;
 528     char **paths = NULL;
 529     int num = -1;
 530     pa_dbus_pending *p;
 531     pa_bluetooth_discovery *y;
 532
 533     pa_assert(pending);
 534
 535     dbus_error_init(&e);
 536
 537     pa_assert_se(p = userdata);
 538     pa_assert_se(y = p->context_data);
 539     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 540
 541     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 542         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 543         goto end;
 544     }
 545
 546     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 547         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 548         dbus_error_free(&e);
 549     } else {
 550         int i;
 551
 552         for (i = 0; i < num; ++i)
 553             found_adapter(y, paths[i]);
 554     }
 555
 556 end:
 557     if (paths)
 558         dbus_free_string_array (paths);
 559
 560     dbus_message_unref(r);
 561
 562     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 563     pa_dbus_pending_free(p);
 564 }
 565
 566 static void list_adapters(pa_bluetooth_discovery *y) {
 567     DBusMessage *m;
 568     pa_assert(y);
 569
 570     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 571     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 572 }
 573
 574 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 575     DBusError err;
 576     pa_bluetooth_discovery *y;
 577
 578     pa_assert(bus);
 579     pa_assert(m);
 580
 581     pa_assert_se(y = userdata);
 582
 583     dbus_error_init(&err);
 584
 585     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 586             dbus_message_get_interface(m),
 587             dbus_message_get_path(m),
 588             dbus_message_get_member(m));
 589
 590     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 591         const char *path;
 592         pa_bluetooth_device *d;
 593
 594         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 595             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 596             goto fail;
 597         }
 598
 599         pa_log_debug("Device %s removed", path);
 600
 601         if ((d = pa_hashmap_remove(y->devices, path))) {
 602
 603             pa_assert_se(y->mode == MODE_DISCOVER);
 604             run_callback(y, d, FALSE);
 605
 606             pa_bluetooth_device_free(d);
 607         }
 608
 609         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 610
 611     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 612         const char *path;
 613
 614         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 615             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 616             goto fail;
 617         }
 618
 619         pa_log_debug("Device %s created", path);
 620
 621         found_device(y, path);
 622         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 623
 624     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 625         const char *path;
 626
 627         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 628             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 629             goto fail;
 630         }
 631
 632         pa_log_debug("Adapter %s created", path);
 633
 634         found_adapter(y, path);
 635         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 636
 637     } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 638                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 639                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 640
 641         pa_bluetooth_device *d;
 642
 643         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 644             DBusMessageIter arg_i;
 645
 646             if (!dbus_message_iter_init(m, &arg_i)) {
 647                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 648                 goto fail;
 649             }
 650
 651             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 652                 if (parse_device_property(y, d, &arg_i) < 0)
 653                     goto fail;
 654
 655             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 656                 if (parse_audio_property(y, &d->headset_connected, &arg_i) < 0)
 657                     goto fail;
 658
 659             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 660                 if (parse_audio_property(y, &d->audio_sink_connected, &arg_i) < 0)
 661                     goto fail;
 662             }
 663
 664             pa_assert_se(y->mode == MODE_DISCOVER);
 665             run_callback(y, d, TRUE);
 666         }
 667
 668         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 669     }
 670
 671 fail:
 672     dbus_error_free(&err);
 673
 674     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 675 }
 676
 677 pa_bluetooth_device* pa_bluetooth_find_device(DBusConnection *c, const char* address) {
 678     pa_bluetooth_discovery y;
 679
 680     memset(&y, 0, sizeof(y));
 681     y.mode = MODE_FIND;
 682     y.looking_for = address;
 683     y.connection = c;
 684     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 685
 686     list_adapters(&y);
 687
 688     pa_dbus_sync_pending_list(&y.pending);
 689     pa_assert(!y.pending);
 690
 691     if (y.found_device) {
 692         pa_assert(device_is_loaded(y.found_device));
 693
 694         if (!device_is_audio(y.found_device)) {
 695             pa_bluetooth_device_free(y.found_device);
 696             return NULL;
 697         }
 698     }
 699
 700     return y.found_device;
 701 }
 702
 703 pa_bluetooth_device* pa_bluetooth_get_device(DBusConnection *c, const char* path) {
 704     pa_bluetooth_discovery y;
 705
 706     memset(&y, 0, sizeof(y));
 707     y.mode = MODE_GET;
 708     y.connection = c;
 709     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 710
 711     found_device(&y, path);
 712
 713     pa_dbus_sync_pending_list(&y.pending);
 714     pa_assert(!y.pending);
 715
 716     if (y.found_device) {
 717         pa_assert(device_is_loaded(y.found_device));
 718
 719         if (!device_is_audio(y.found_device)) {
 720             pa_bluetooth_device_free(y.found_device);
 721             return NULL;
 722         }
 723     }
 724
 725     return y.found_device;
 726 }
 727
 728 pa_bluetooth_discovery* pa_bluetooth_discovery_new(DBusConnection *c, pa_bluetooth_device_callback_t cb, struct userdata *u) {
 729     DBusError err;
 730     pa_bluetooth_discovery *y;
 731
 732     pa_assert(c);
 733     pa_assert(cb);
 734
 735     dbus_error_init(&err);
 736
 737     y = pa_xnew0(pa_bluetooth_discovery, 1);
 738     y->mode = MODE_DISCOVER;
 739     y->connection = c;
 740     y->callback = cb;
 741     y->userdata = u;
 742     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 743     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
 744
 745     /* dynamic detection of bluetooth audio devices */
 746     if (!dbus_connection_add_filter(c, filter_cb, y, NULL)) {
 747         pa_log_error("Failed to add filter function");
 748         goto fail;
 749     }
 750
 751     if (pa_dbus_add_matches(
 752                 c, &err,
 753                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 754                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 755                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 756                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 757                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 758                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 759         pa_log("Failed to add D-Bus matches: %s", err.message);
 760         goto fail;
 761     }
 762
 763     list_adapters(y);
 764
 765     return y;
 766
 767 fail:
 768     dbus_error_free(&err);
 769     return NULL;
 770 }
 771
 772 void pa_bluetooth_discovery_free(pa_bluetooth_discovery *y) {
 773     pa_bluetooth_device *d;
 774
 775     pa_assert(y);
 776
 777     pa_dbus_free_pending_list(&y->pending);
 778
 779     if (y->devices) {
 780         while ((d = pa_hashmap_steal_first(y->devices))) {
 781             run_callback(y, d, FALSE);
 782             pa_bluetooth_device_free(d);
 783         }
 784
 785         pa_hashmap_free(y->devices, NULL, NULL);
 786     }
 787
 788     if (y->connection) {
 789         pa_dbus_remove_matches(y->connection,
 790                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 791                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 792                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 793                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 794                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 795                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 796                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 797
 798         dbus_connection_remove_filter(y->connection, filter_cb, y);
 799     }
 800 }
 801
 802 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 803     pa_assert(y);
 804
 805     pa_dbus_sync_pending_list(&y->pending);
 806 }
 807
 808 const char*pa_bluetooth_get_form_factor(uint32_t class) {
 809     unsigned i;
 810     const char *r;
 811
 812     static const char * const table[] = {
 813         [1] = "headset",
 814         [2] = "hands-free",
 815         [4] = "microphone",
 816         [5] = "speaker",
 817         [6] = "headphone",
 818         [7] = "portable",
 819         [8] = "car",
 820         [10] = "hifi"
 821     };
 822
 823     if (((class >> 8) & 31) != 4)
 824         return NULL;
 825
 826     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
 827         r =  NULL;
 828     else
 829         r = table[i];
 830
 831     if (!r)
 832         pa_log_debug("Unknown Bluetooth minor device class %u", i);
 833
 834     return r;
 835 }
 836
 837 char *pa_bluetooth_cleanup_name(const char *name) {
 838     char *t, *s, *d;
 839     pa_bool_t space = FALSE;
 840
 841     pa_assert(name);
 842
 843     while ((*name >= 1 && *name <= 32) || *name >= 127)
 844         name++;
 845
 846     t = pa_xstrdup(name);
 847
 848     for (s = d = t; *s; s++) {
 849
 850         if (*s <= 32 || *s >= 127 || *s == '_') {
 851             space = TRUE;
 852             continue;
 853         }
 854
 855         if (space) {
 856             *(d++) = ' ';
 857             space = FALSE;
 858         }
 859
 860         *(d++) = *s;
 861     }
 862
 863     *d = 0;
 864
 865     return t;
 866 }