code.delx.au - pulseaudio/blob - src/modules/bluetooth/bluetooth-util.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2008 Joao Paulo Rechi Vita
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <pulsecore/core-util.h>
  27 #include <modules/dbus-util.h>
  28
  29 #include "bluetooth-util.h"
  30
  31 enum mode {
  32     MODE_FIND,
  33     MODE_GET,
  34     MODE_DISCOVER
  35 };
  36
  37 struct pa_bluetooth_discovery {
  38     DBusConnection *connection;
  39     PA_LLIST_HEAD(pa_dbus_pending, pending);
  40
  41     enum mode mode;
  42
  43     /* If mode == MODE_FIND look for a specific device by its address.
  44        If mode == MODE_GET look for a specific device by its path. */
  45     const char *looking_for;
  46     pa_bluetooth_device *found_device;
  47
  48     /* If looking_for is NULL we do long-time discovery */
  49     pa_hashmap *devices;
  50     pa_bluetooth_device_callback_t callback;
  51     struct userdata *userdata;
  52 };
  53
  54 static pa_bluetooth_uuid *uuid_new(const char *uuid) {
  55     pa_bluetooth_uuid *u;
  56
  57     u = pa_xnew(pa_bluetooth_uuid, 1);
  58     u->uuid = pa_xstrdup(uuid);
  59     PA_LLIST_INIT(pa_bluetooth_uuid, u);
  60
  61     return u;
  62 }
  63
  64 static void uuid_free(pa_bluetooth_uuid *u) {
  65     pa_assert(u);
  66
  67     pa_xfree(u->uuid);
  68     pa_xfree(u);
  69 }
  70
  71 static pa_bluetooth_device* device_new(const char *path) {
  72     pa_bluetooth_device *d;
  73
  74     d = pa_xnew(pa_bluetooth_device, 1);
  75
  76     d->device_info_valid = d->audio_sink_info_valid = d->headset_info_valid = 0;
  77
  78     d->data = NULL;
  79
  80     d->name = NULL;
  81     d->path = pa_xstrdup(path);
  82     d->paired = -1;
  83     d->alias = NULL;
  84     d->device_connected = -1;
  85     PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
  86     d->address = NULL;
  87     d->class = -1;
  88     d->trusted = -1;
  89
  90     d->audio_sink_connected = -1;
  91
  92     d->headset_connected = -1;
  93
  94     return d;
  95 }
  96
  97 void pa_bluetooth_device_free(pa_bluetooth_device *d) {
  98     pa_bluetooth_uuid *u;
  99
 100     pa_assert(d);
 101
 102     while ((u = d->uuids)) {
 103         PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
 104         uuid_free(u);
 105     }
 106
 107     pa_xfree(d->name);
 108     pa_xfree(d->path);
 109     pa_xfree(d->alias);
 110     pa_xfree(d->address);
 111     pa_xfree(d);
 112 }
 113
 114 static pa_bool_t device_is_loaded(pa_bluetooth_device *d) {
 115     pa_assert(d);
 116
 117     return d->device_info_valid && d->audio_sink_info_valid && d->headset_info_valid;
 118 }
 119
 120 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 121     pa_assert(d);
 122
 123     pa_assert(d->device_info_valid);
 124     pa_assert(d->audio_sink_info_valid);
 125     pa_assert(d->headset_info_valid);
 126
 127     return d->device_info_valid > 0 &&
 128         (d->audio_sink_info_valid > 0 || d->headset_info_valid > 0);
 129 }
 130
 131 static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
 132     const char *key;
 133     DBusMessageIter variant_i;
 134
 135     pa_assert(y);
 136     pa_assert(d);
 137     pa_assert(i);
 138
 139     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 140         pa_log("Property name not a string.");
 141         return -1;
 142     }
 143
 144     dbus_message_iter_get_basic(i, &key);
 145
 146     if (!dbus_message_iter_next(i))  {
 147         pa_log("Property value missing");
 148         return -1;
 149     }
 150
 151     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 152         pa_log("Property value not a variant.");
 153         return -1;
 154     }
 155
 156     dbus_message_iter_recurse(i, &variant_i);
 157
 158 /*     pa_log_debug("Parsing property org.bluez.Device.%s", key); */
 159
 160     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 161
 162         case DBUS_TYPE_STRING: {
 163
 164             const char *value;
 165             dbus_message_iter_get_basic(&variant_i, &value);
 166
 167             if (pa_streq(key, "Name")) {
 168                 pa_xfree(d->name);
 169                 d->name = pa_xstrdup(value);
 170             } else if (pa_streq(key, "Alias")) {
 171                 pa_xfree(d->alias);
 172                 d->alias = pa_xstrdup(value);
 173             } else if (pa_streq(key, "Address")) {
 174                 pa_xfree(d->address);
 175                 d->address = pa_xstrdup(value);
 176             }
 177
 178 /*             pa_log_debug("Value %s", value); */
 179
 180             break;
 181         }
 182
 183         case DBUS_TYPE_BOOLEAN: {
 184
 185             dbus_bool_t value;
 186             dbus_message_iter_get_basic(&variant_i, &value);
 187
 188             if (pa_streq(key, "Paired"))
 189                 d->paired = !!value;
 190             else if (pa_streq(key, "Connected"))
 191                 d->device_connected = !!value;
 192             else if (pa_streq(key, "Trusted"))
 193                 d->trusted = !!value;
 194
 195 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 196
 197             break;
 198         }
 199
 200         case DBUS_TYPE_UINT32: {
 201
 202             uint32_t value;
 203             dbus_message_iter_get_basic(&variant_i, &value);
 204
 205             if (pa_streq(key, "Class"))
 206                 d->class = (int) value;
 207
 208 /*             pa_log_debug("Value %u", (unsigned) value); */
 209
 210             break;
 211         }
 212
 213         case DBUS_TYPE_ARRAY: {
 214
 215             DBusMessageIter ai;
 216             dbus_message_iter_recurse(&variant_i, &ai);
 217
 218             if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
 219                 pa_streq(key, "UUIDs")) {
 220
 221                 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
 222                     pa_bluetooth_uuid *node;
 223                     const char *value;
 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                     if (!dbus_message_iter_next(&ai))
 230                         break;
 231                 }
 232             }
 233
 234             break;
 235         }
 236     }
 237
 238     return 0;
 239 }
 240
 241 static int parse_audio_property(pa_bluetooth_discovery *u, int *connected, DBusMessageIter *i) {
 242     const char *key;
 243     DBusMessageIter variant_i;
 244
 245     pa_assert(u);
 246     pa_assert(connected);
 247     pa_assert(i);
 248
 249     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 250         pa_log("Property name not a string.");
 251         return -1;
 252     }
 253
 254     dbus_message_iter_get_basic(i, &key);
 255
 256     if (!dbus_message_iter_next(i))  {
 257         pa_log("Property value missing");
 258         return -1;
 259     }
 260
 261     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 262         pa_log("Property value not a variant.");
 263         return -1;
 264     }
 265
 266     dbus_message_iter_recurse(i, &variant_i);
 267
 268 /*     pa_log_debug("Parsing property org.bluez.{AudioSink|Headset}.%s", key); */
 269
 270     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 271
 272         case DBUS_TYPE_BOOLEAN: {
 273
 274             dbus_bool_t value;
 275             dbus_message_iter_get_basic(&variant_i, &value);
 276
 277             if (pa_streq(key, "Connected"))
 278                 *connected = !!value;
 279
 280 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 281
 282             break;
 283         }
 284     }
 285
 286     return 0;
 287 }
 288
 289 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t good) {
 290     pa_assert(y);
 291     pa_assert(d);
 292
 293     if (y->mode != MODE_DISCOVER)
 294         return;
 295
 296     if (!device_is_loaded(d))
 297         return;
 298
 299     if (!device_is_audio(d))
 300         return;
 301
 302     y->callback(y->userdata, d, good);
 303
 304 }
 305
 306 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 307     DBusMessage *r;
 308     DBusMessageIter arg_i, element_i;
 309     pa_dbus_pending *p;
 310     pa_bluetooth_device *d;
 311     pa_bluetooth_discovery *y;
 312     int valid;
 313
 314     pa_assert_se(p = userdata);
 315     pa_assert_se(y = p->context_data);
 316     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 317
 318 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 319 /*                  dbus_message_get_interface(p->message), */
 320 /*                  dbus_message_get_path(p->message)); */
 321
 322     d = p->call_data;
 323
 324     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 325
 326     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 327         d->device_info_valid = valid;
 328     else if (dbus_message_is_method_call(p->message, "org.bluez.Headset", "GetProperties"))
 329         d->headset_info_valid = valid;
 330     else if (dbus_message_is_method_call(p->message, "org.bluez.AudioSink", "GetProperties"))
 331         d->audio_sink_info_valid = valid;
 332
 333     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 334
 335         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 336             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 337
 338         goto finish;
 339     }
 340
 341     if (!dbus_message_iter_init(r, &arg_i)) {
 342         pa_log("GetProperties reply has no arguments.");
 343         goto finish;
 344     }
 345
 346     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 347         pa_log("GetProperties argument is not an array.");
 348         goto finish;
 349     }
 350
 351     dbus_message_iter_recurse(&arg_i, &element_i);
 352     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 353
 354         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 355             DBusMessageIter dict_i;
 356
 357             dbus_message_iter_recurse(&element_i, &dict_i);
 358
 359             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 360                 if (parse_device_property(y, d, &dict_i) < 0)
 361                     goto finish;
 362
 363             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 364                 if (parse_audio_property(y, &d->headset_connected, &dict_i) < 0)
 365                     goto finish;
 366
 367             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 368                 if (parse_audio_property(y, &d->audio_sink_connected, &dict_i) < 0)
 369                     goto finish;
 370             }
 371         }
 372
 373         if (!dbus_message_iter_next(&element_i))
 374             break;
 375     }
 376
 377 finish:
 378     run_callback(y, d, TRUE);
 379
 380     dbus_message_unref(r);
 381
 382     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 383     pa_dbus_pending_free(p);
 384 }
 385
 386 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 387     pa_dbus_pending *p;
 388     DBusPendingCall *call;
 389
 390     pa_assert(y);
 391     pa_assert(m);
 392
 393     pa_assert_se(dbus_connection_send_with_reply(y->connection, m, &call, -1));
 394
 395     p = pa_dbus_pending_new(m, call, y, d);
 396     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 397     dbus_pending_call_set_notify(call, func, p, NULL);
 398
 399     return p;
 400 }
 401
 402 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 403     DBusMessage *m;
 404     pa_bluetooth_device *d;
 405
 406     pa_assert(y);
 407     pa_assert(path);
 408
 409     d = device_new(path);
 410
 411     if (y->mode == MODE_DISCOVER) {
 412         pa_assert(y->devices);
 413         pa_hashmap_put(y->devices, d->path, d);
 414     } else {
 415         pa_assert(!y->found_device);
 416         y->found_device = d;
 417     }
 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     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Headset", "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.AudioSink", "GetProperties"));
 426     send_and_add_to_pending(y, d, m, get_properties_reply);
 427 }
 428
 429 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 430     DBusError e;
 431     DBusMessage *r;
 432     char **paths = NULL;
 433     int num = -1;
 434     pa_dbus_pending *p;
 435     pa_bluetooth_discovery *y;
 436
 437     pa_assert(pending);
 438
 439     dbus_error_init(&e);
 440
 441     pa_assert_se(p = userdata);
 442     pa_assert_se(y = p->context_data);
 443     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 444
 445     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 446         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 447         goto end;
 448     }
 449
 450     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 451         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 452         dbus_error_free(&e);
 453     } else {
 454         int i;
 455
 456         for (i = 0; i < num; ++i)
 457             found_device(y, paths[i]);
 458     }
 459
 460 end:
 461     if (paths)
 462         dbus_free_string_array (paths);
 463
 464     dbus_message_unref(r);
 465
 466     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 467     pa_dbus_pending_free(p);
 468 }
 469
 470 static void find_device_reply(DBusPendingCall *pending, void *userdata) {
 471     DBusError e;
 472     DBusMessage *r;
 473     char *path = NULL;
 474     pa_dbus_pending *p;
 475     pa_bluetooth_discovery *y;
 476
 477     pa_assert(pending);
 478
 479     dbus_error_init(&e);
 480
 481     pa_assert_se(p = userdata);
 482     pa_assert_se(y = p->context_data);
 483     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 484
 485     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 486         pa_log("Error from FindDevice reply: %s", dbus_message_get_error_name(r));
 487         goto end;
 488     }
 489
 490     if (!dbus_message_get_args(r, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 491         pa_log("org.bluez.Adapter.FindDevice returned an error: '%s'\n", e.message);
 492         dbus_error_free(&e);
 493     } else
 494         found_device(y, path);
 495
 496 end:
 497     dbus_message_unref(r);
 498
 499     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 500     pa_dbus_pending_free(p);
 501 }
 502
 503 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 504     DBusMessage *m;
 505
 506     if (y->mode == MODE_FIND) {
 507         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "FindDevice"));
 508
 509         pa_assert_se(dbus_message_append_args(m,
 510                                               DBUS_TYPE_STRING, &y->looking_for,
 511                                               DBUS_TYPE_INVALID));
 512
 513         send_and_add_to_pending(y, NULL, m, find_device_reply);
 514
 515     } else {
 516         pa_assert(y->mode == MODE_DISCOVER);
 517
 518         pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 519         send_and_add_to_pending(y, NULL, m, list_devices_reply);
 520     }
 521 }
 522
 523 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 524     DBusError e;
 525     DBusMessage *r;
 526     char **paths = NULL;
 527     int num = -1;
 528     pa_dbus_pending *p;
 529     pa_bluetooth_discovery *y;
 530
 531     pa_assert(pending);
 532
 533     dbus_error_init(&e);
 534
 535     pa_assert_se(p = userdata);
 536     pa_assert_se(y = p->context_data);
 537     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 538
 539     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 540         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 541         goto end;
 542     }
 543
 544     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 545         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 546         dbus_error_free(&e);
 547     } else {
 548         int i;
 549
 550         for (i = 0; i < num; ++i)
 551             found_adapter(y, paths[i]);
 552     }
 553
 554 end:
 555     if (paths)
 556         dbus_free_string_array (paths);
 557
 558     dbus_message_unref(r);
 559
 560     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 561     pa_dbus_pending_free(p);
 562 }
 563
 564 static void list_adapters(pa_bluetooth_discovery *y) {
 565     DBusMessage *m;
 566     pa_assert(y);
 567
 568     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 569     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 570 }
 571
 572 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 573     DBusError err;
 574     pa_bluetooth_discovery *y;
 575
 576     pa_assert(bus);
 577     pa_assert(m);
 578
 579     pa_assert_se(y = userdata);
 580
 581     dbus_error_init(&err);
 582
 583     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 584             dbus_message_get_interface(m),
 585             dbus_message_get_path(m),
 586             dbus_message_get_member(m));
 587
 588     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 589         const char *path;
 590         pa_bluetooth_device *d;
 591
 592         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 593             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 594             goto fail;
 595         }
 596
 597         pa_log_debug("Device %s removed", path);
 598
 599         if ((d = pa_hashmap_remove(y->devices, path))) {
 600
 601             pa_assert_se(y->mode == MODE_DISCOVER);
 602             run_callback(y, d, FALSE);
 603
 604             pa_bluetooth_device_free(d);
 605         }
 606
 607         return DBUS_HANDLER_RESULT_HANDLED;
 608
 609     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 610         const char *path;
 611
 612         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 613             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 614             goto fail;
 615         }
 616
 617         pa_log_debug("Device %s created", path);
 618
 619         found_device(y, path);
 620         return DBUS_HANDLER_RESULT_HANDLED;
 621
 622     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 623         const char *path;
 624
 625         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 626             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 627             goto fail;
 628         }
 629
 630         pa_log_debug("Adapter %s created", path);
 631
 632         found_adapter(y, path);
 633         return DBUS_HANDLER_RESULT_HANDLED;
 634
 635     } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 636                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 637                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 638
 639         pa_bluetooth_device *d;
 640
 641         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 642             DBusMessageIter arg_i;
 643
 644             if (!dbus_message_iter_init(m, &arg_i)) {
 645                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 646                 goto fail;
 647             }
 648
 649             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 650                 if (parse_device_property(y, d, &arg_i) < 0)
 651                     goto fail;
 652
 653             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 654                 if (parse_audio_property(y, &d->headset_connected, &arg_i) < 0)
 655                     goto fail;
 656
 657             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 658                 if (parse_audio_property(y, &d->audio_sink_connected, &arg_i) < 0)
 659                     goto fail;
 660             }
 661
 662             pa_assert_se(y->mode == MODE_DISCOVER);
 663             run_callback(y, d, TRUE);
 664         }
 665
 666         return DBUS_HANDLER_RESULT_HANDLED;
 667     }
 668
 669 fail:
 670     dbus_error_free(&err);
 671
 672     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 673 }
 674
 675 pa_bluetooth_device* pa_bluetooth_find_device(DBusConnection *c, const char* address) {
 676     pa_bluetooth_discovery y;
 677
 678     memset(&y, 0, sizeof(y));
 679     y.mode = MODE_FIND;
 680     y.looking_for = address;
 681     y.connection = c;
 682     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 683
 684     list_adapters(&y);
 685
 686     pa_dbus_sync_pending_list(&y.pending);
 687     pa_assert(!y.pending);
 688
 689     if (y.found_device) {
 690         pa_assert(device_is_loaded(y.found_device));
 691
 692         if (!device_is_audio(y.found_device)) {
 693             pa_bluetooth_device_free(y.found_device);
 694             return NULL;
 695         }
 696     }
 697
 698     return y.found_device;
 699 }
 700
 701 pa_bluetooth_device* pa_bluetooth_get_device(DBusConnection *c, const char* path) {
 702     pa_bluetooth_discovery y;
 703
 704     memset(&y, 0, sizeof(y));
 705     y.mode = MODE_GET;
 706     y.connection = c;
 707     PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
 708
 709     found_device(&y, path);
 710
 711     pa_dbus_sync_pending_list(&y.pending);
 712     pa_assert(!y.pending);
 713
 714     if (y.found_device) {
 715         pa_assert(device_is_loaded(y.found_device));
 716
 717         if (!device_is_audio(y.found_device)) {
 718             pa_bluetooth_device_free(y.found_device);
 719             return NULL;
 720         }
 721     }
 722
 723     return y.found_device;
 724 }
 725
 726 pa_bluetooth_discovery* pa_bluetooth_discovery_new(DBusConnection *c, pa_bluetooth_device_callback_t cb, struct userdata *u) {
 727     DBusError err;
 728     pa_bluetooth_discovery *y;
 729
 730     pa_assert(c);
 731     pa_assert(cb);
 732
 733     dbus_error_init(&err);
 734
 735     y = pa_xnew0(pa_bluetooth_discovery, 1);
 736     y->mode = MODE_DISCOVER;
 737     y->connection = c;
 738     y->callback = cb;
 739     y->userdata = u;
 740     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 741     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
 742
 743     /* dynamic detection of bluetooth audio devices */
 744     if (!dbus_connection_add_filter(c, filter_cb, y, NULL)) {
 745         pa_log_error("Failed to add filter function");
 746         goto fail;
 747     }
 748
 749     if (pa_dbus_add_matches(
 750                 c, &err,
 751                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 752                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 753                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 754                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 755                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 756                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 757         pa_log("Failed to add D-Bus matches: %s", err.message);
 758         goto fail;
 759     }
 760
 761     list_adapters(y);
 762
 763     return y;
 764
 765 fail:
 766     dbus_error_free(&err);
 767     return NULL;
 768 }
 769
 770 void pa_bluetooth_discovery_free(pa_bluetooth_discovery *y) {
 771     pa_bluetooth_device *d;
 772
 773     pa_assert(y);
 774
 775     pa_dbus_free_pending_list(&y->pending);
 776
 777     if (y->devices) {
 778         while ((d = pa_hashmap_steal_first(y->devices))) {
 779             run_callback(y, d, FALSE);
 780             pa_bluetooth_device_free(d);
 781         }
 782
 783         pa_hashmap_free(y->devices, NULL, NULL);
 784     }
 785
 786     if (y->connection) {
 787         pa_dbus_remove_matches(y->connection,
 788                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 789                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 790                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 791                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 792                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 793                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 794                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 795
 796         dbus_connection_remove_filter(y->connection, filter_cb, y);
 797     }
 798 }
 799
 800 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 801     pa_assert(y);
 802
 803     pa_dbus_sync_pending_list(&y->pending);
 804 }
 805
 806 const char*pa_bluetooth_get_form_factor(uint32_t class) {
 807     unsigned i;
 808     const char *r;
 809
 810     static const char * const table[] = {
 811         [1] = "headset",
 812         [2] = "hands-free",
 813         [4] = "microphone",
 814         [5] = "speaker",
 815         [6] = "headphone",
 816         [7] = "portable",
 817         [8] = "car",
 818         [10] = "hifi"
 819     };
 820
 821     if (((class >> 8) & 31) != 4)
 822         return NULL;
 823
 824     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
 825         r =  NULL;
 826     else
 827         r = table[i];
 828
 829     if (!r)
 830         pa_log_debug("Unknown Bluetooth minor device class %u", i);
 831
 832     return r;
 833 }
 834
 835 char *pa_bluetooth_cleanup_name(const char *name) {
 836     char *t, *s, *d;
 837     pa_bool_t space = FALSE;
 838
 839     pa_assert(name);
 840
 841     while ((*name >= 1 && *name <= 32) || *name >= 127)
 842         name++;
 843
 844     t = pa_xstrdup(name);
 845
 846     for (s = d = t; *s; s++) {
 847
 848         if (*s <= 32 || *s >= 127 || *s == '_') {
 849             space = TRUE;
 850             continue;
 851         }
 852
 853         if (space) {
 854             *(d++) = ' ';
 855             space = FALSE;
 856         }
 857
 858         *(d++) = *s;
 859     }
 860
 861     *d = 0;
 862
 863     return t;
 864 }