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
 295         case DBUS_TYPE_BOOLEAN: {
 296
 297             dbus_bool_t value;
 298             dbus_message_iter_get_basic(&variant_i, &value);
 299
 300             /* if (pa_streq(key, "Connected")) */
 301             /*     *connected = !!value; */
 302
 303 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 304
 305             break;
 306         }
 307     }
 308
 309     return 0;
 310 }
 311
 312 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t dead) {
 313     pa_assert(y);
 314     pa_assert(d);
 315
 316     if (!device_is_audio(d))
 317         return;
 318
 319     d->dead = dead;
 320     pa_hook_fire(&y->hook, d);
 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_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 347
 348         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 349             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 350
 351         goto finish;
 352     }
 353
 354     if (!dbus_message_iter_init(r, &arg_i)) {
 355         pa_log("GetProperties reply has no arguments.");
 356         goto finish;
 357     }
 358
 359     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 360         pa_log("GetProperties argument is not an array.");
 361         goto finish;
 362     }
 363
 364     dbus_message_iter_recurse(&arg_i, &element_i);
 365     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 366
 367         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 368             DBusMessageIter dict_i;
 369
 370             dbus_message_iter_recurse(&element_i, &dict_i);
 371
 372             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 373                 if (parse_device_property(y, d, &dict_i) < 0)
 374                     goto finish;
 375
 376             } else if (dbus_message_has_interface(p->message, "org.bluez.Audio")) {
 377                 if (parse_audio_property(y, &d->audio_state, &dict_i) < 0)
 378                     goto finish;
 379
 380             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 381                 if (parse_audio_property(y, &d->headset_state, &dict_i) < 0)
 382                     goto finish;
 383
 384             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 385                 if (parse_audio_property(y, &d->audio_sink_state, &dict_i) < 0)
 386                     goto finish;
 387             }
 388         }
 389
 390         if (!dbus_message_iter_next(&element_i))
 391             break;
 392     }
 393
 394 finish:
 395     run_callback(y, d, FALSE);
 396
 397     dbus_message_unref(r);
 398
 399     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 400     pa_dbus_pending_free(p);
 401 }
 402
 403 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 404     pa_dbus_pending *p;
 405     DBusPendingCall *call;
 406
 407     pa_assert(y);
 408     pa_assert(m);
 409
 410     pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
 411
 412     p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, d);
 413     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 414     dbus_pending_call_set_notify(call, func, p, NULL);
 415
 416     return p;
 417 }
 418
 419 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 420     DBusMessage *m;
 421     pa_bluetooth_device *d;
 422
 423     pa_assert(y);
 424     pa_assert(path);
 425
 426     d = device_new(path);
 427
 428     pa_hashmap_put(y->devices, d->path, d);
 429
 430     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 431     send_and_add_to_pending(y, d, m, get_properties_reply);
 432 }
 433
 434 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 435     DBusError e;
 436     DBusMessage *r;
 437     char **paths = NULL;
 438     int num = -1;
 439     pa_dbus_pending *p;
 440     pa_bluetooth_discovery *y;
 441
 442     pa_assert(pending);
 443
 444     dbus_error_init(&e);
 445
 446     pa_assert_se(p = userdata);
 447     pa_assert_se(y = p->context_data);
 448     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 449
 450     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 451         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 452         goto end;
 453     }
 454
 455     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 456         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 457         dbus_error_free(&e);
 458     } else {
 459         int i;
 460
 461         for (i = 0; i < num; ++i)
 462             found_device(y, paths[i]);
 463     }
 464
 465 end:
 466     if (paths)
 467         dbus_free_string_array (paths);
 468
 469     dbus_message_unref(r);
 470
 471     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 472     pa_dbus_pending_free(p);
 473 }
 474
 475 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 476     DBusMessage *m;
 477
 478     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 479     send_and_add_to_pending(y, NULL, m, list_devices_reply);
 480 }
 481
 482 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 483     DBusError e;
 484     DBusMessage *r;
 485     char **paths = NULL;
 486     int num = -1;
 487     pa_dbus_pending *p;
 488     pa_bluetooth_discovery *y;
 489
 490     pa_assert(pending);
 491
 492     dbus_error_init(&e);
 493
 494     pa_assert_se(p = userdata);
 495     pa_assert_se(y = p->context_data);
 496     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 497
 498     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 499         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 500         goto end;
 501     }
 502
 503     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 504         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 505         dbus_error_free(&e);
 506     } else {
 507         int i;
 508
 509         for (i = 0; i < num; ++i)
 510             found_adapter(y, paths[i]);
 511     }
 512
 513 end:
 514     if (paths)
 515         dbus_free_string_array (paths);
 516
 517     dbus_message_unref(r);
 518
 519     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 520     pa_dbus_pending_free(p);
 521 }
 522
 523 static void list_adapters(pa_bluetooth_discovery *y) {
 524     DBusMessage *m;
 525     pa_assert(y);
 526
 527     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 528     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 529 }
 530
 531 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 532     DBusError err;
 533     pa_bluetooth_discovery *y;
 534
 535     pa_assert(bus);
 536     pa_assert(m);
 537
 538     pa_assert_se(y = userdata);
 539
 540     dbus_error_init(&err);
 541
 542     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 543             dbus_message_get_interface(m),
 544             dbus_message_get_path(m),
 545             dbus_message_get_member(m));
 546
 547     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 548         const char *path;
 549         pa_bluetooth_device *d;
 550
 551         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 552             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 553             goto fail;
 554         }
 555
 556         pa_log_debug("Device %s removed", path);
 557
 558         if ((d = pa_hashmap_remove(y->devices, path))) {
 559             run_callback(y, d, TRUE);
 560             device_free(d);
 561         }
 562
 563         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 564
 565     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 566         const char *path;
 567
 568         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 569             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 570             goto fail;
 571         }
 572
 573         pa_log_debug("Device %s created", path);
 574
 575         found_device(y, path);
 576         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 577
 578     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 579         const char *path;
 580
 581         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 582             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 583             goto fail;
 584         }
 585
 586         pa_log_debug("Adapter %s created", path);
 587
 588         found_adapter(y, path);
 589         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 590
 591     } else if (dbus_message_is_signal(m, "org.bluez.Audio", "PropertyChanged") ||
 592                dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 593                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 594                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 595
 596         pa_bluetooth_device *d;
 597
 598         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 599             DBusMessageIter arg_i;
 600
 601             if (!dbus_message_iter_init(m, &arg_i)) {
 602                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 603                 goto fail;
 604             }
 605
 606             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 607                 if (parse_device_property(y, d, &arg_i) < 0)
 608                     goto fail;
 609
 610             } else if (dbus_message_has_interface(m, "org.bluez.Audio")) {
 611                 if (parse_audio_property(y, &d->audio_state, &arg_i) < 0)
 612                     goto fail;
 613
 614             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 615                 if (parse_audio_property(y, &d->headset_state, &arg_i) < 0)
 616                     goto fail;
 617
 618             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 619                 if (parse_audio_property(y, &d->audio_sink_state, &arg_i) < 0)
 620                     goto fail;
 621             }
 622
 623             run_callback(y, d, FALSE);
 624         }
 625
 626         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 627     }
 628
 629 fail:
 630     dbus_error_free(&err);
 631
 632     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 633 }
 634
 635 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_address(pa_bluetooth_discovery *y, const char* address) {
 636     pa_bluetooth_device *d;
 637     void *state = NULL;
 638
 639     pa_assert(y);
 640     pa_assert(PA_REFCNT_VALUE(y) > 0);
 641     pa_assert(address);
 642
 643     if (!pa_hook_is_firing(&y->hook))
 644         pa_bluetooth_discovery_sync(y);
 645
 646     while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
 647         if (pa_streq(d->address, address))
 648             return d;
 649
 650     return NULL;
 651 }
 652
 653 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_path(pa_bluetooth_discovery *y, const char* path) {
 654     pa_assert(y);
 655     pa_assert(PA_REFCNT_VALUE(y) > 0);
 656     pa_assert(path);
 657
 658     if (!pa_hook_is_firing(&y->hook))
 659         pa_bluetooth_discovery_sync(y);
 660
 661     return pa_hashmap_get(y->devices, path);
 662 }
 663
 664 static int setup_dbus(pa_bluetooth_discovery *y) {
 665     DBusError err;
 666
 667     dbus_error_init(&err);
 668
 669     y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err);
 670
 671     if (dbus_error_is_set(&err) || !y->connection) {
 672         pa_log("Failed to get D-Bus connection: %s", err.message);
 673         dbus_error_free(&err);
 674         return -1;
 675     }
 676
 677     return 0;
 678 }
 679
 680 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
 681     DBusError err;
 682     pa_bluetooth_discovery *y;
 683
 684     pa_assert(c);
 685
 686     dbus_error_init(&err);
 687
 688     if ((y = pa_shared_get(c, "bluetooth-discovery")))
 689         return pa_bluetooth_discovery_ref(y);
 690
 691     y = pa_xnew0(pa_bluetooth_discovery, 1);
 692     PA_REFCNT_INIT(y);
 693     y->core = c;
 694     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 695     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
 696     pa_hook_init(&y->hook, y);
 697     pa_shared_set(c, "bluetooth-discovery", y);
 698
 699     if (setup_dbus(y) < 0)
 700         goto fail;
 701
 702     /* dynamic detection of bluetooth audio devices */
 703     if (!dbus_connection_add_filter(pa_dbus_connection_get(y->connection), filter_cb, y, NULL)) {
 704         pa_log_error("Failed to add filter function");
 705         goto fail;
 706     }
 707
 708     if (pa_dbus_add_matches(
 709                 pa_dbus_connection_get(y->connection), &err,
 710                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 711                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 712                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 713                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 714                 "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
 715                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 716                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 717         pa_log("Failed to add D-Bus matches: %s", err.message);
 718         goto fail;
 719     }
 720
 721     list_adapters(y);
 722
 723     return y;
 724
 725 fail:
 726
 727     if (y)
 728         pa_bluetooth_discovery_unref(y);
 729
 730     dbus_error_free(&err);
 731
 732     return NULL;
 733 }
 734
 735 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
 736     pa_assert(y);
 737     pa_assert(PA_REFCNT_VALUE(y) > 0);
 738
 739     PA_REFCNT_INC(y);
 740
 741     return y;
 742 }
 743
 744 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
 745     pa_bluetooth_device *d;
 746
 747     pa_assert(y);
 748     pa_assert(PA_REFCNT_VALUE(y) > 0);
 749
 750     if (PA_REFCNT_DEC(y) > 0)
 751         return;
 752
 753     pa_dbus_free_pending_list(&y->pending);
 754
 755     if (y->devices) {
 756         while ((d = pa_hashmap_steal_first(y->devices))) {
 757             run_callback(y, d, TRUE);
 758             device_free(d);
 759         }
 760
 761         pa_hashmap_free(y->devices, NULL, NULL);
 762     }
 763
 764     if (y->connection) {
 765         pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
 766                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 767                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 768                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 769                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 770                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 771                                "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
 772                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 773                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 774
 775         dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
 776
 777         pa_dbus_connection_unref(y->connection);
 778     }
 779
 780     pa_hook_done(&y->hook);
 781
 782     if (y->core)
 783         pa_shared_remove(y->core, "bluetooth-discovery");
 784 }
 785
 786 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 787     pa_assert(y);
 788     pa_assert(PA_REFCNT_VALUE(y) > 0);
 789
 790     pa_dbus_sync_pending_list(&y->pending);
 791 }
 792
 793 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y) {
 794     pa_assert(y);
 795     pa_assert(PA_REFCNT_VALUE(y) > 0);
 796
 797     return &y->hook;
 798 }
 799
 800 const char*pa_bluetooth_get_form_factor(uint32_t class) {
 801     unsigned i;
 802     const char *r;
 803
 804     static const char * const table[] = {
 805         [1] = "headset",
 806         [2] = "hands-free",
 807         [4] = "microphone",
 808         [5] = "speaker",
 809         [6] = "headphone",
 810         [7] = "portable",
 811         [8] = "car",
 812         [10] = "hifi"
 813     };
 814
 815     if (((class >> 8) & 31) != 4)
 816         return NULL;
 817
 818     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
 819         r =  NULL;
 820     else
 821         r = table[i];
 822
 823     if (!r)
 824         pa_log_debug("Unknown Bluetooth minor device class %u", i);
 825
 826     return r;
 827 }
 828
 829 char *pa_bluetooth_cleanup_name(const char *name) {
 830     char *t, *s, *d;
 831     pa_bool_t space = FALSE;
 832
 833     pa_assert(name);
 834
 835     while ((*name >= 1 && *name <= 32) || *name >= 127)
 836         name++;
 837
 838     t = pa_xstrdup(name);
 839
 840     for (s = d = t; *s; s++) {
 841
 842         if (*s <= 32 || *s >= 127 || *s == '_') {
 843             space = TRUE;
 844             continue;
 845         }
 846
 847         if (space) {
 848             *(d++) = ' ';
 849             space = FALSE;
 850         }
 851
 852         *(d++) = *s;
 853     }
 854
 855     *d = 0;
 856
 857     return t;
 858 }
 859
 860 pa_bool_t pa_bluetooth_uuid_has(pa_bluetooth_uuid *uuids, const char *uuid) {
 861     pa_assert(uuid);
 862
 863     while (uuids) {
 864         if (strcasecmp(uuids->uuid, uuid) == 0)
 865             return TRUE;
 866
 867         uuids = uuids->next;
 868     }
 869
 870     return FALSE;
 871 }