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 <pulsecore/shared.h>
  28 #include <pulsecore/dbus-shared.h>
  29
  30 #include "bluetooth-util.h"
  31
  32 struct pa_bluetooth_discovery {
  33     PA_REFCNT_DECLARE;
  34
  35     pa_core *core;
  36     pa_dbus_connection *connection;
  37     PA_LLIST_HEAD(pa_dbus_pending, pending);
  38     pa_hashmap *devices;
  39     pa_hook hook;
  40 };
  41
  42 static void get_properties_reply(DBusPendingCall *pending, void *userdata);
  43 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func);
  44
  45 static pa_bt_audio_state_t pa_bt_audio_state_from_string(const char* value) {
  46     pa_assert(value);
  47
  48     if (pa_streq(value, "disconnected"))
  49         return PA_BT_AUDIO_STATE_DISCONNECTED;
  50     else if (pa_streq(value, "connecting"))
  51         return PA_BT_AUDIO_STATE_CONNECTING;
  52     else if (pa_streq(value, "connected"))
  53         return PA_BT_AUDIO_STATE_CONNECTED;
  54     else if (pa_streq(value, "playing"))
  55         return PA_BT_AUDIO_STATE_PLAYING;
  56
  57     return PA_BT_AUDIO_STATE_INVALID;
  58 }
  59
  60 static pa_bluetooth_uuid *uuid_new(const char *uuid) {
  61     pa_bluetooth_uuid *u;
  62
  63     u = pa_xnew(pa_bluetooth_uuid, 1);
  64     u->uuid = pa_xstrdup(uuid);
  65     PA_LLIST_INIT(pa_bluetooth_uuid, u);
  66
  67     return u;
  68 }
  69
  70 static void uuid_free(pa_bluetooth_uuid *u) {
  71     pa_assert(u);
  72
  73     pa_xfree(u->uuid);
  74     pa_xfree(u);
  75 }
  76
  77 static pa_bluetooth_device* device_new(const char *path) {
  78     pa_bluetooth_device *d;
  79
  80     d = pa_xnew(pa_bluetooth_device, 1);
  81
  82     d->dead = FALSE;
  83
  84     d->device_info_valid = 0;
  85
  86     d->name = NULL;
  87     d->path = pa_xstrdup(path);
  88     d->paired = -1;
  89     d->alias = NULL;
  90     d->device_connected = -1;
  91     PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
  92     d->address = NULL;
  93     d->class = -1;
  94     d->trusted = -1;
  95
  96     d->audio_state = PA_BT_AUDIO_STATE_INVALID;
  97     d->audio_sink_state = PA_BT_AUDIO_STATE_INVALID;
  98     d->headset_state = PA_BT_AUDIO_STATE_INVALID;
  99
 100     return d;
 101 }
 102
 103 static void device_free(pa_bluetooth_device *d) {
 104     pa_bluetooth_uuid *u;
 105
 106     pa_assert(d);
 107
 108     while ((u = d->uuids)) {
 109         PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
 110         uuid_free(u);
 111     }
 112
 113     pa_xfree(d->name);
 114     pa_xfree(d->path);
 115     pa_xfree(d->alias);
 116     pa_xfree(d->address);
 117     pa_xfree(d);
 118 }
 119
 120 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 121     pa_assert(d);
 122
 123     return
 124         d->device_info_valid &&
 125         (d->audio_state != PA_BT_AUDIO_STATE_INVALID &&
 126          (d->audio_sink_state != PA_BT_AUDIO_STATE_INVALID ||
 127           d->headset_state != PA_BT_AUDIO_STATE_INVALID));
 128 }
 129
 130 static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
 131     const char *key;
 132     DBusMessageIter variant_i;
 133
 134     pa_assert(y);
 135     pa_assert(d);
 136     pa_assert(i);
 137
 138     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 139         pa_log("Property name not a string.");
 140         return -1;
 141     }
 142
 143     dbus_message_iter_get_basic(i, &key);
 144
 145     if (!dbus_message_iter_next(i))  {
 146         pa_log("Property value missing");
 147         return -1;
 148     }
 149
 150     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 151         pa_log("Property value not a variant.");
 152         return -1;
 153     }
 154
 155     dbus_message_iter_recurse(i, &variant_i);
 156
 157 /*     pa_log_debug("Parsing property org.bluez.Device.%s", key); */
 158
 159     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 160
 161         case DBUS_TYPE_STRING: {
 162
 163             const char *value;
 164             dbus_message_iter_get_basic(&variant_i, &value);
 165
 166             if (pa_streq(key, "Name")) {
 167                 pa_xfree(d->name);
 168                 d->name = pa_xstrdup(value);
 169             } else if (pa_streq(key, "Alias")) {
 170                 pa_xfree(d->alias);
 171                 d->alias = pa_xstrdup(value);
 172             } else if (pa_streq(key, "Address")) {
 173                 pa_xfree(d->address);
 174                 d->address = pa_xstrdup(value);
 175             }
 176
 177 /*             pa_log_debug("Value %s", value); */
 178
 179             break;
 180         }
 181
 182         case DBUS_TYPE_BOOLEAN: {
 183
 184             dbus_bool_t value;
 185             dbus_message_iter_get_basic(&variant_i, &value);
 186
 187             if (pa_streq(key, "Paired"))
 188                 d->paired = !!value;
 189             else if (pa_streq(key, "Connected"))
 190                 d->device_connected = !!value;
 191             else if (pa_streq(key, "Trusted"))
 192                 d->trusted = !!value;
 193
 194 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 195
 196             break;
 197         }
 198
 199         case DBUS_TYPE_UINT32: {
 200
 201             uint32_t value;
 202             dbus_message_iter_get_basic(&variant_i, &value);
 203
 204             if (pa_streq(key, "Class"))
 205                 d->class = (int) value;
 206
 207 /*             pa_log_debug("Value %u", (unsigned) value); */
 208
 209             break;
 210         }
 211
 212         case DBUS_TYPE_ARRAY: {
 213
 214             DBusMessageIter ai;
 215             dbus_message_iter_recurse(&variant_i, &ai);
 216
 217             if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
 218                 pa_streq(key, "UUIDs")) {
 219
 220                 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
 221                     pa_bluetooth_uuid *node;
 222                     const char *value;
 223                     DBusMessage *m;
 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                     /* this might eventually be racy if .Audio is not there yet, but the State change will come anyway later, so this call is for cold-detection mostly */
 230                     pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Audio", "GetProperties"));
 231                     send_and_add_to_pending(y, d, m, get_properties_reply);
 232
 233                     /* Vudentz said the interfaces are here when the UUIDs are announced */
 234                     if (strcasecmp(HSP_HS_UUID, value) == 0 || strcasecmp(HFP_HS_UUID, value) == 0) {
 235                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Headset", "GetProperties"));
 236                         send_and_add_to_pending(y, d, m, get_properties_reply);
 237                     } else if (strcasecmp(A2DP_SINK_UUID, value) == 0) {
 238                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.AudioSink", "GetProperties"));
 239                         send_and_add_to_pending(y, d, m, get_properties_reply);
 240                     }
 241
 242                     if (!dbus_message_iter_next(&ai))
 243                         break;
 244                 }
 245             }
 246
 247             break;
 248         }
 249     }
 250
 251     return 0;
 252 }
 253
 254 static int parse_audio_property(pa_bluetooth_discovery *u, int *state, DBusMessageIter *i) {
 255     const char *key;
 256     DBusMessageIter variant_i;
 257
 258     pa_assert(u);
 259     pa_assert(state);
 260     pa_assert(i);
 261
 262     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 263         pa_log("Property name not a string.");
 264         return -1;
 265     }
 266
 267     dbus_message_iter_get_basic(i, &key);
 268
 269     if (!dbus_message_iter_next(i))  {
 270         pa_log("Property value missing");
 271         return -1;
 272     }
 273
 274     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 275         pa_log("Property value not a variant.");
 276         return -1;
 277     }
 278
 279     dbus_message_iter_recurse(i, &variant_i);
 280
 281 /*     pa_log_debug("Parsing property org.bluez.{Audio|AudioSink|Headset}.%s", key); */
 282
 283     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 284
 285         case DBUS_TYPE_STRING: {
 286
 287             const char *value;
 288             dbus_message_iter_get_basic(&variant_i, &value);
 289
 290             if (pa_streq(key, "State"))
 291                 *state = pa_bt_audio_state_from_string(value);
 292 /*             pa_log_debug("Value %s", value); */
 293
 294             break;
 295         }
 296     }
 297
 298     return 0;
 299 }
 300
 301 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t dead) {
 302     pa_assert(y);
 303     pa_assert(d);
 304
 305     if (!device_is_audio(d))
 306         return;
 307
 308     d->dead = dead;
 309     pa_hook_fire(&y->hook, d);
 310 }
 311
 312 static void remove_all_devices(pa_bluetooth_discovery *y) {
 313     pa_bluetooth_device *d;
 314
 315     pa_assert(y);
 316
 317     while ((d = pa_hashmap_steal_first(y->devices))) {
 318         run_callback(y, d, TRUE);
 319         device_free(d);
 320     }
 321 }
 322
 323 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 324     DBusMessage *r;
 325     DBusMessageIter arg_i, element_i;
 326     pa_dbus_pending *p;
 327     pa_bluetooth_device *d;
 328     pa_bluetooth_discovery *y;
 329     int valid;
 330
 331     pa_assert_se(p = userdata);
 332     pa_assert_se(y = p->context_data);
 333     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 334
 335 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 336 /*                  dbus_message_get_interface(p->message), */
 337 /*                  dbus_message_get_path(p->message)); */
 338
 339     d = p->call_data;
 340
 341     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 342
 343     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 344         d->device_info_valid = valid;
 345
 346     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 347         pa_log_debug("Bluetooth daemon is apparently not available.");
 348         remove_all_devices(y);
 349         goto finish2;
 350     }
 351
 352     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 353
 354         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 355             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 356
 357         goto finish;
 358     }
 359
 360     if (!dbus_message_iter_init(r, &arg_i)) {
 361         pa_log("GetProperties reply has no arguments.");
 362         goto finish;
 363     }
 364
 365     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 366         pa_log("GetProperties argument is not an array.");
 367         goto finish;
 368     }
 369
 370     dbus_message_iter_recurse(&arg_i, &element_i);
 371     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 372
 373         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 374             DBusMessageIter dict_i;
 375
 376             dbus_message_iter_recurse(&element_i, &dict_i);
 377
 378             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 379                 if (parse_device_property(y, d, &dict_i) < 0)
 380                     goto finish;
 381
 382             } else if (dbus_message_has_interface(p->message, "org.bluez.Audio")) {
 383                 if (parse_audio_property(y, &d->audio_state, &dict_i) < 0)
 384                     goto finish;
 385
 386             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 387                 if (parse_audio_property(y, &d->headset_state, &dict_i) < 0)
 388                     goto finish;
 389
 390             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 391                 if (parse_audio_property(y, &d->audio_sink_state, &dict_i) < 0)
 392                     goto finish;
 393             }
 394         }
 395
 396         if (!dbus_message_iter_next(&element_i))
 397             break;
 398     }
 399
 400 finish:
 401     run_callback(y, d, FALSE);
 402
 403 finish2:
 404     dbus_message_unref(r);
 405
 406     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 407     pa_dbus_pending_free(p);
 408 }
 409
 410 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 411     pa_dbus_pending *p;
 412     DBusPendingCall *call;
 413
 414     pa_assert(y);
 415     pa_assert(m);
 416
 417     pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
 418
 419     p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, d);
 420     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 421     dbus_pending_call_set_notify(call, func, p, NULL);
 422
 423     return p;
 424 }
 425
 426 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 427     DBusMessage *m;
 428     pa_bluetooth_device *d;
 429
 430     pa_assert(y);
 431     pa_assert(path);
 432
 433     if (pa_hashmap_get(y->devices, path))
 434         return;
 435
 436     d = device_new(path);
 437
 438     pa_hashmap_put(y->devices, d->path, d);
 439
 440     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 441     send_and_add_to_pending(y, d, m, get_properties_reply);
 442
 443     /* Before we read the other properties (Audio, AudioSink, Headset) we wait
 444      * that the UUID is read */
 445 }
 446
 447 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 448     DBusError e;
 449     DBusMessage *r;
 450     char **paths = NULL;
 451     int num = -1;
 452     pa_dbus_pending *p;
 453     pa_bluetooth_discovery *y;
 454
 455     pa_assert(pending);
 456
 457     dbus_error_init(&e);
 458
 459     pa_assert_se(p = userdata);
 460     pa_assert_se(y = p->context_data);
 461     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 462
 463     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 464         pa_log_debug("Bluetooth daemon is apparently not available.");
 465         remove_all_devices(y);
 466         goto finish;
 467     }
 468
 469     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 470         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 471         goto finish;
 472     }
 473
 474     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 475         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 476         dbus_error_free(&e);
 477     } else {
 478         int i;
 479
 480         for (i = 0; i < num; ++i)
 481             found_device(y, paths[i]);
 482     }
 483
 484 finish:
 485     if (paths)
 486         dbus_free_string_array (paths);
 487
 488     dbus_message_unref(r);
 489
 490     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 491     pa_dbus_pending_free(p);
 492 }
 493
 494 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 495     DBusMessage *m;
 496
 497     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 498     send_and_add_to_pending(y, NULL, m, list_devices_reply);
 499 }
 500
 501 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 502     DBusError e;
 503     DBusMessage *r;
 504     char **paths = NULL;
 505     int num = -1;
 506     pa_dbus_pending *p;
 507     pa_bluetooth_discovery *y;
 508
 509     pa_assert(pending);
 510
 511     dbus_error_init(&e);
 512
 513     pa_assert_se(p = userdata);
 514     pa_assert_se(y = p->context_data);
 515     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 516
 517     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 518         pa_log_debug("Bluetooth daemon is apparently not available.");
 519         remove_all_devices(y);
 520         goto finish;
 521     }
 522
 523     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 524         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 525         goto finish;
 526     }
 527
 528     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 529         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 530         dbus_error_free(&e);
 531     } else {
 532         int i;
 533
 534         for (i = 0; i < num; ++i)
 535             found_adapter(y, paths[i]);
 536     }
 537
 538 finish:
 539     if (paths)
 540         dbus_free_string_array (paths);
 541
 542     dbus_message_unref(r);
 543
 544     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 545     pa_dbus_pending_free(p);
 546 }
 547
 548 static void list_adapters(pa_bluetooth_discovery *y) {
 549     DBusMessage *m;
 550     pa_assert(y);
 551
 552     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 553     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 554 }
 555
 556 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 557     DBusError err;
 558     pa_bluetooth_discovery *y;
 559
 560     pa_assert(bus);
 561     pa_assert(m);
 562
 563     pa_assert_se(y = userdata);
 564
 565     dbus_error_init(&err);
 566
 567     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 568             dbus_message_get_interface(m),
 569             dbus_message_get_path(m),
 570             dbus_message_get_member(m));
 571
 572     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 573         const char *path;
 574         pa_bluetooth_device *d;
 575
 576         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 577             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 578             goto fail;
 579         }
 580
 581         pa_log_debug("Device %s removed", path);
 582
 583         if ((d = pa_hashmap_remove(y->devices, path))) {
 584             run_callback(y, d, TRUE);
 585             device_free(d);
 586         }
 587
 588         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 589
 590     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 591         const char *path;
 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.DeviceCreated: %s", err.message);
 595             goto fail;
 596         }
 597
 598         pa_log_debug("Device %s created", path);
 599
 600         found_device(y, path);
 601         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 602
 603     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 604         const char *path;
 605
 606         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 607             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 608             goto fail;
 609         }
 610
 611         pa_log_debug("Adapter %s created", path);
 612
 613         found_adapter(y, path);
 614         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 615
 616     } else if (dbus_message_is_signal(m, "org.bluez.Audio", "PropertyChanged") ||
 617                dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 618                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 619                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 620
 621         pa_bluetooth_device *d;
 622
 623         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 624             DBusMessageIter arg_i;
 625
 626             if (!dbus_message_iter_init(m, &arg_i)) {
 627                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 628                 goto fail;
 629             }
 630
 631             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 632                 if (parse_device_property(y, d, &arg_i) < 0)
 633                     goto fail;
 634
 635             } else if (dbus_message_has_interface(m, "org.bluez.Audio")) {
 636                 if (parse_audio_property(y, &d->audio_state, &arg_i) < 0)
 637                     goto fail;
 638
 639             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 640                 if (parse_audio_property(y, &d->headset_state, &arg_i) < 0)
 641                     goto fail;
 642
 643             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 644                 if (parse_audio_property(y, &d->audio_sink_state, &arg_i) < 0)
 645                     goto fail;
 646             }
 647
 648             run_callback(y, d, FALSE);
 649         }
 650
 651         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 652
 653     } else if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
 654         const char *name, *old_owner, *new_owner;
 655
 656         if (!dbus_message_get_args(m, &err,
 657                                    DBUS_TYPE_STRING, &name,
 658                                    DBUS_TYPE_STRING, &old_owner,
 659                                    DBUS_TYPE_STRING, &new_owner,
 660                                    DBUS_TYPE_INVALID)) {
 661             pa_log("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
 662             goto fail;
 663         }
 664
 665         if (pa_streq(name, "org.bluez")) {
 666             if (old_owner && *old_owner) {
 667                 pa_log_debug("Bluetooth daemon disappeared.");
 668                 remove_all_devices(y);
 669             }
 670
 671             if (new_owner && *new_owner) {
 672                 pa_log_debug("Bluetooth daemon appeared.");
 673                 list_adapters(y);
 674             }
 675         }
 676
 677         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 678     }
 679
 680 fail:
 681     dbus_error_free(&err);
 682
 683     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 684 }
 685
 686 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_address(pa_bluetooth_discovery *y, const char* address) {
 687     pa_bluetooth_device *d;
 688     void *state = NULL;
 689
 690     pa_assert(y);
 691     pa_assert(PA_REFCNT_VALUE(y) > 0);
 692     pa_assert(address);
 693
 694     if (!pa_hook_is_firing(&y->hook))
 695         pa_bluetooth_discovery_sync(y);
 696
 697     while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
 698         if (pa_streq(d->address, address))
 699             return d;
 700
 701     return NULL;
 702 }
 703
 704 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_path(pa_bluetooth_discovery *y, const char* path) {
 705     pa_assert(y);
 706     pa_assert(PA_REFCNT_VALUE(y) > 0);
 707     pa_assert(path);
 708
 709     if (!pa_hook_is_firing(&y->hook))
 710         pa_bluetooth_discovery_sync(y);
 711
 712     return pa_hashmap_get(y->devices, path);
 713 }
 714
 715 static int setup_dbus(pa_bluetooth_discovery *y) {
 716     DBusError err;
 717
 718     dbus_error_init(&err);
 719
 720     y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err);
 721
 722     if (dbus_error_is_set(&err) || !y->connection) {
 723         pa_log("Failed to get D-Bus connection: %s", err.message);
 724         dbus_error_free(&err);
 725         return -1;
 726     }
 727
 728     return 0;
 729 }
 730
 731 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
 732     DBusError err;
 733     pa_bluetooth_discovery *y;
 734
 735     pa_assert(c);
 736
 737     dbus_error_init(&err);
 738
 739     if ((y = pa_shared_get(c, "bluetooth-discovery")))
 740         return pa_bluetooth_discovery_ref(y);
 741
 742     y = pa_xnew0(pa_bluetooth_discovery, 1);
 743     PA_REFCNT_INIT(y);
 744     y->core = c;
 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     pa_hook_init(&y->hook, y);
 748     pa_shared_set(c, "bluetooth-discovery", y);
 749
 750     if (setup_dbus(y) < 0)
 751         goto fail;
 752
 753     /* dynamic detection of bluetooth audio devices */
 754     if (!dbus_connection_add_filter(pa_dbus_connection_get(y->connection), filter_cb, y, NULL)) {
 755         pa_log_error("Failed to add filter function");
 756         goto fail;
 757     }
 758
 759     if (pa_dbus_add_matches(
 760                 pa_dbus_connection_get(y->connection), &err,
 761                 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'",
 762                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 763                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 764                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 765                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 766                 "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
 767                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 768                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 769         pa_log("Failed to add D-Bus matches: %s", err.message);
 770         goto fail;
 771     }
 772
 773     list_adapters(y);
 774
 775     return y;
 776
 777 fail:
 778
 779     if (y)
 780         pa_bluetooth_discovery_unref(y);
 781
 782     dbus_error_free(&err);
 783
 784     return NULL;
 785 }
 786
 787 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
 788     pa_assert(y);
 789     pa_assert(PA_REFCNT_VALUE(y) > 0);
 790
 791     PA_REFCNT_INC(y);
 792
 793     return y;
 794 }
 795
 796 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
 797     pa_assert(y);
 798     pa_assert(PA_REFCNT_VALUE(y) > 0);
 799
 800     if (PA_REFCNT_DEC(y) > 0)
 801         return;
 802
 803     pa_dbus_free_pending_list(&y->pending);
 804
 805     if (y->devices) {
 806         remove_all_devices(y);
 807         pa_hashmap_free(y->devices, NULL, NULL);
 808     }
 809
 810     if (y->connection) {
 811         pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
 812                                "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'",
 813                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 814                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 815                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 816                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 817                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 818                                "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
 819                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 820                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 821
 822         dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
 823
 824         pa_dbus_connection_unref(y->connection);
 825     }
 826
 827     pa_hook_done(&y->hook);
 828
 829     if (y->core)
 830         pa_shared_remove(y->core, "bluetooth-discovery");
 831
 832     pa_xfree(y);
 833 }
 834
 835 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 836     pa_assert(y);
 837     pa_assert(PA_REFCNT_VALUE(y) > 0);
 838
 839     pa_dbus_sync_pending_list(&y->pending);
 840 }
 841
 842 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y) {
 843     pa_assert(y);
 844     pa_assert(PA_REFCNT_VALUE(y) > 0);
 845
 846     return &y->hook;
 847 }
 848
 849 const char*pa_bluetooth_get_form_factor(uint32_t class) {
 850     unsigned i;
 851     const char *r;
 852
 853     static const char * const table[] = {
 854         [1] = "headset",
 855         [2] = "hands-free",
 856         [4] = "microphone",
 857         [5] = "speaker",
 858         [6] = "headphone",
 859         [7] = "portable",
 860         [8] = "car",
 861         [10] = "hifi"
 862     };
 863
 864     if (((class >> 8) & 31) != 4)
 865         return NULL;
 866
 867     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
 868         r =  NULL;
 869     else
 870         r = table[i];
 871
 872     if (!r)
 873         pa_log_debug("Unknown Bluetooth minor device class %u", i);
 874
 875     return r;
 876 }
 877
 878 char *pa_bluetooth_cleanup_name(const char *name) {
 879     char *t, *s, *d;
 880     pa_bool_t space = FALSE;
 881
 882     pa_assert(name);
 883
 884     while ((*name >= 1 && *name <= 32) || *name >= 127)
 885         name++;
 886
 887     t = pa_xstrdup(name);
 888
 889     for (s = d = t; *s; s++) {
 890
 891         if (*s <= 32 || *s >= 127 || *s == '_') {
 892             space = TRUE;
 893             continue;
 894         }
 895
 896         if (space) {
 897             *(d++) = ' ';
 898             space = FALSE;
 899         }
 900
 901         *(d++) = *s;
 902     }
 903
 904     *d = 0;
 905
 906     return t;
 907 }
 908
 909 pa_bool_t pa_bluetooth_uuid_has(pa_bluetooth_uuid *uuids, const char *uuid) {
 910     pa_assert(uuid);
 911
 912     while (uuids) {
 913         if (strcasecmp(uuids->uuid, uuid) == 0)
 914             return TRUE;
 915
 916         uuids = uuids->next;
 917     }
 918
 919     return FALSE;
 920 }