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