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     /* FIXME: e83621724d7939b97b4f01f0d7e965d61ef8e55e, f1daa282f030e4e2381341e0f65faca47c4b891b is borked, probably needs to be reversed */
 118
 119     return d->device_info_valid && (d->audio_sink_info_valid || d->headset_info_valid);
 120 }
 121
 122 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 123     pa_assert(d);
 124
 125     pa_assert(d->device_info_valid);
 126     pa_assert(d->audio_sink_info_valid || d->headset_info_valid);
 127
 128     /* FIXME: e83621724d7939b97b4f01f0d7e965d61ef8e55e, f1daa282f030e4e2381341e0f65faca47c4b891b is borked, probably needs to be reversed */
 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
 309 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 310     DBusMessage *r;
 311     DBusMessageIter arg_i, element_i;
 312     pa_dbus_pending *p;
 313     pa_bluetooth_device *d;
 314     pa_bluetooth_discovery *y;
 315     int valid;
 316
 317     pa_assert_se(p = userdata);
 318     pa_assert_se(y = p->context_data);
 319     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 320
 321 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 322 /*                  dbus_message_get_interface(p->message), */
 323 /*                  dbus_message_get_path(p->message)); */
 324
 325     d = p->call_data;
 326
 327     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 328
 329     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 330         d->device_info_valid = valid;
 331     else if (dbus_message_is_method_call(p->message, "org.bluez.Headset", "GetProperties"))
 332         d->headset_info_valid = valid;
 333     else if (dbus_message_is_method_call(p->message, "org.bluez.AudioSink", "GetProperties"))
 334         d->audio_sink_info_valid = valid;
 335
 336     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 337
 338         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 339             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 340
 341         goto finish;
 342     }
 343
 344     if (!dbus_message_iter_init(r, &arg_i)) {
 345         pa_log("GetProperties reply has no arguments.");
 346         goto finish;
 347     }
 348
 349     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 350         pa_log("GetProperties argument is not an array.");
 351         goto finish;
 352     }
 353
 354     dbus_message_iter_recurse(&arg_i, &element_i);
 355     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 356
 357         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 358             DBusMessageIter dict_i;
 359
 360             dbus_message_iter_recurse(&element_i, &dict_i);
 361
 362             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 363                 if (parse_device_property(y, d, &dict_i) < 0)
 364                     goto finish;
 365
 366             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 367                 if (parse_audio_property(y, &d->headset_connected, &dict_i) < 0)
 368                     goto finish;
 369
 370             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 371                 if (parse_audio_property(y, &d->audio_sink_connected, &dict_i) < 0)
 372                     goto finish;
 373             }
 374         }
 375
 376         if (!dbus_message_iter_next(&element_i))
 377             break;
 378     }
 379
 380 finish:
 381     run_callback(y, d, TRUE);
 382
 383     dbus_message_unref(r);
 384
 385     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 386     pa_dbus_pending_free(p);
 387 }
 388
 389 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 390     pa_dbus_pending *p;
 391     DBusPendingCall *call;
 392
 393     pa_assert(y);
 394     pa_assert(m);
 395
 396     pa_assert_se(dbus_connection_send_with_reply(y->connection, m, &call, -1));
 397
 398     p = pa_dbus_pending_new(m, call, y, d);
 399     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 400     dbus_pending_call_set_notify(call, func, p, NULL);
 401
 402     return p;
 403 }
 404
 405 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 406     DBusMessage *m;
 407     pa_bluetooth_device *d;
 408
 409     pa_assert(y);
 410     pa_assert(path);
 411
 412     d = device_new(path);
 413
 414     if (y->mode == MODE_DISCOVER) {
 415         pa_assert(y->devices);
 416         pa_hashmap_put(y->devices, d->path, d);
 417     } else {
 418         pa_assert(!y->found_device);
 419         y->found_device = d;
 420     }
 421
 422     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 423     send_and_add_to_pending(y, d, m, get_properties_reply);
 424
 425     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Headset", "GetProperties"));
 426     send_and_add_to_pending(y, d, m, get_properties_reply);
 427
 428     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.AudioSink", "GetProperties"));
 429     send_and_add_to_pending(y, d, m, get_properties_reply);
 430 }
 431
 432 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 433     DBusError e;
 434     DBusMessage *r;
 435     char **paths = NULL;
 436     int num = -1;
 437     pa_dbus_pending *p;
 438     pa_bluetooth_discovery *y;
 439
 440     pa_assert(pending);
 441
 442     dbus_error_init(&e);
 443
 444     pa_assert_se(p = userdata);
 445     pa_assert_se(y = p->context_data);
 446     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 447
 448     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 449         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 450         goto end;
 451     }
 452
 453     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 454         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 455         dbus_error_free(&e);
 456     } else {
 457         int i;
 458
 459         for (i = 0; i < num; ++i)
 460             found_device(y, paths[i]);
 461     }
 462
 463 end:
 464     if (paths)
 465         dbus_free_string_array (paths);
 466
 467     dbus_message_unref(r);
 468
 469     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 470     pa_dbus_pending_free(p);
 471 }
 472
 473 static void find_device_reply(DBusPendingCall *pending, void *userdata) {
 474     DBusError e;
 475     DBusMessage *r;
 476     char *path = NULL;
 477     pa_dbus_pending *p;
 478     pa_bluetooth_discovery *y;
 479
 480     pa_assert(pending);
 481
 482     dbus_error_init(&e);
 483
 484     pa_assert_se(p = userdata);
 485     pa_assert_se(y = p->context_data);
 486     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 487
 488     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 489         pa_log("Error from FindDevice reply: %s", dbus_message_get_error_name(r));
 490         goto end;
 491     }
 492
 493     if (!dbus_message_get_args(r, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 494         pa_log("org.bluez.Adapter.FindDevice returned an error: '%s'\n", e.message);
 495         dbus_error_free(&e);
 496     } else
 497         found_device(y, path);
 498
 499 end:
 500     dbus_message_unref(r);
 501
 502     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 503     pa_dbus_pending_free(p);
 504 }
 505
 506 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 507     DBusMessage *m;
 508
 509     if (y->mode == MODE_FIND) {
 510         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "FindDevice"));
 511
 512         pa_assert_se(dbus_message_append_args(m,
 513                                               DBUS_TYPE_STRING, &y->looking_for,
 514                                               DBUS_TYPE_INVALID));
 515
 516         send_and_add_to_pending(y, NULL, m, find_device_reply);
 517
 518     } else {
 519         pa_assert(y->mode == MODE_DISCOVER);
 520
 521         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 522         send_and_add_to_pending(y, NULL, m, list_devices_reply);
 523     }
 524 }
 525
 526 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 527     DBusError e;
 528     DBusMessage *r;
 529     char **paths = NULL;
 530     int num = -1;
 531     pa_dbus_pending *p;
 532     pa_bluetooth_discovery *y;
 533
 534     pa_assert(pending);
 535
 536     dbus_error_init(&e);
 537
 538     pa_assert_se(p = userdata);
 539     pa_assert_se(y = p->context_data);
 540     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 541
 542     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 543         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 544         goto end;
 545     }
 546
 547     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 548         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 549         dbus_error_free(&e);
 550     } else {
 551         int i;
 552
 553         for (i = 0; i < num; ++i)
 554             found_adapter(y, paths[i]);
 555     }
 556
 557 end:
 558     if (paths)
 559         dbus_free_string_array (paths);
 560
 561     dbus_message_unref(r);
 562
 563     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 564     pa_dbus_pending_free(p);
 565 }
 566
 567 static void list_adapters(pa_bluetooth_discovery *y) {
 568     DBusMessage *m;
 569     pa_assert(y);
 570
 571     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 572     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 573 }
 574
 575 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 576     DBusError err;
 577     pa_bluetooth_discovery *y;
 578
 579     pa_assert(bus);
 580     pa_assert(m);
 581
 582     pa_assert_se(y = userdata);
 583
 584     dbus_error_init(&err);
 585
 586     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 587             dbus_message_get_interface(m),
 588             dbus_message_get_path(m),
 589             dbus_message_get_member(m));
 590
 591     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 592         const char *path;
 593         pa_bluetooth_device *d;
 594
 595         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 596             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 597             goto fail;
 598         }
 599
 600         pa_log_debug("Device %s removed", path);
 601
 602         if ((d = pa_hashmap_remove(y->devices, path))) {
 603
 604             pa_assert_se(y->mode == MODE_DISCOVER);
 605             run_callback(y, d, FALSE);
 606
 607             pa_bluetooth_device_free(d);
 608         }
 609
 610         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 611
 612     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 613         const char *path;
 614
 615         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 616             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 617             goto fail;
 618         }
 619
 620         pa_log_debug("Device %s created", path);
 621
 622         found_device(y, path);
 623         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 624
 625     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 626         const char *path;
 627
 628         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 629             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 630             goto fail;
 631         }
 632
 633         pa_log_debug("Adapter %s created", path);
 634
 635         found_adapter(y, path);
 636         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 637
 638     } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 639                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 640                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 641
 642         pa_bluetooth_device *d;
 643
 644         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 645             DBusMessageIter arg_i;
 646
 647             if (!dbus_message_iter_init(m, &arg_i)) {
 648                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 649                 goto fail;
 650             }
 651
 652             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 653                 if (parse_device_property(y, d, &arg_i) < 0)
 654                     goto fail;
 655
 656             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 657                 if (parse_audio_property(y, &d->headset_connected, &arg_i) < 0)
 658                     goto fail;
 659                 d->headset_info_valid = 1;
 660
 661             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 662                 if (parse_audio_property(y, &d->audio_sink_connected, &arg_i) < 0)
 663                     goto fail;
 664                 d->audio_sink_info_valid = 1;
 665             }
 666
 667             pa_assert_se(y->mode == MODE_DISCOVER);
 668             run_callback(y, d, TRUE);
 669         }
 670
 671         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 672     }
 673
 674 fail:
 675     dbus_error_free(&err);
 676
 677     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 678 }
 679
 680 pa_bluetooth_device* pa_bluetooth_find_device(DBusConnection *c, const char* address) {
 681     pa_bluetooth_discovery y;
 682
 683     memset(&y, 0, sizeof(y));
 684     y.mode = MODE_FIND;
 685     y.looking_for = address;
 686     y.connection = c;
 687     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 688
 689     list_adapters(&y);
 690
 691     pa_dbus_sync_pending_list(&y.pending);
 692     pa_assert(!y.pending);
 693
 694     if (y.found_device) {
 695         pa_assert(device_is_loaded(y.found_device));
 696
 697         if (!device_is_audio(y.found_device)) {
 698             pa_bluetooth_device_free(y.found_device);
 699             return NULL;
 700         }
 701     }
 702
 703     return y.found_device;
 704 }
 705
 706 pa_bluetooth_device* pa_bluetooth_get_device(DBusConnection *c, const char* path) {
 707     pa_bluetooth_discovery y;
 708
 709     memset(&y, 0, sizeof(y));
 710     y.mode = MODE_GET;
 711     y.connection = c;
 712     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 713
 714     found_device(&y, path);
 715
 716     pa_dbus_sync_pending_list(&y.pending);
 717     pa_assert(!y.pending);
 718
 719     if (y.found_device) {
 720         pa_assert(device_is_loaded(y.found_device));
 721
 722         if (!device_is_audio(y.found_device)) {
 723             pa_bluetooth_device_free(y.found_device);
 724             return NULL;
 725         }
 726     }
 727
 728     return y.found_device;
 729 }
 730
 731 pa_bluetooth_discovery* pa_bluetooth_discovery_new(DBusConnection *c, pa_bluetooth_device_callback_t cb, struct userdata *u) {
 732     DBusError err;
 733     pa_bluetooth_discovery *y;
 734
 735     pa_assert(c);
 736     pa_assert(cb);
 737
 738     dbus_error_init(&err);
 739
 740     y = pa_xnew0(pa_bluetooth_discovery, 1);
 741     y->mode = MODE_DISCOVER;
 742     y->connection = c;
 743     y->callback = cb;
 744     y->userdata = u;
 745     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 746     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
 747
 748     /* dynamic detection of bluetooth audio devices */
 749     if (!dbus_connection_add_filter(c, filter_cb, y, NULL)) {
 750         pa_log_error("Failed to add filter function");
 751         goto fail;
 752     }
 753
 754     if (pa_dbus_add_matches(
 755                 c, &err,
 756                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 757                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 758                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 759                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 760                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 761                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 762         pa_log("Failed to add D-Bus matches: %s", err.message);
 763         goto fail;
 764     }
 765
 766     list_adapters(y);
 767
 768     return y;
 769
 770 fail:
 771     dbus_error_free(&err);
 772     return NULL;
 773 }
 774
 775 void pa_bluetooth_discovery_free(pa_bluetooth_discovery *y) {
 776     pa_bluetooth_device *d;
 777
 778     pa_assert(y);
 779
 780     pa_dbus_free_pending_list(&y->pending);
 781
 782     if (y->devices) {
 783         while ((d = pa_hashmap_steal_first(y->devices))) {
 784             run_callback(y, d, FALSE);
 785             pa_bluetooth_device_free(d);
 786         }
 787
 788         pa_hashmap_free(y->devices, NULL, NULL);
 789     }
 790
 791     if (y->connection) {
 792         pa_dbus_remove_matches(y->connection,
 793                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 794                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 795                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 796                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 797                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 798                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 799                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 800
 801         dbus_connection_remove_filter(y->connection, filter_cb, y);
 802     }
 803 }
 804
 805 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 806     pa_assert(y);
 807
 808     pa_dbus_sync_pending_list(&y->pending);
 809 }
 810
 811 const char*pa_bluetooth_get_form_factor(uint32_t class) {
 812     unsigned i;
 813     const char *r;
 814
 815     static const char * const table[] = {
 816         [1] = "headset",
 817         [2] = "hands-free",
 818         [4] = "microphone",
 819         [5] = "speaker",
 820         [6] = "headphone",
 821         [7] = "portable",
 822         [8] = "car",
 823         [10] = "hifi"
 824     };
 825
 826     if (((class >> 8) & 31) != 4)
 827         return NULL;
 828
 829     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
 830         r =  NULL;
 831     else
 832         r = table[i];
 833
 834     if (!r)
 835         pa_log_debug("Unknown Bluetooth minor device class %u", i);
 836
 837     return r;
 838 }
 839
 840 char *pa_bluetooth_cleanup_name(const char *name) {
 841     char *t, *s, *d;
 842     pa_bool_t space = FALSE;
 843
 844     pa_assert(name);
 845
 846     while ((*name >= 1 && *name <= 32) || *name >= 127)
 847         name++;
 848
 849     t = pa_xstrdup(name);
 850
 851     for (s = d = t; *s; s++) {
 852
 853         if (*s <= 32 || *s >= 127 || *s == '_') {
 854             space = TRUE;
 855             continue;
 856         }
 857
 858         if (space) {
 859             *(d++) = ' ';
 860             space = FALSE;
 861         }
 862
 863         *(d++) = *s;
 864     }
 865
 866     *d = 0;
 867
 868     return t;
 869 }