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 <modules/dbus-util.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 enum pa_bt_audio_state 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
  58     return PA_BT_AUDIO_STATE_INVALID;
  59 }
  60
  61 static pa_bluetooth_uuid *uuid_new(const char *uuid) {
  62     pa_bluetooth_uuid *u;
  63
  64     u = pa_xnew(pa_bluetooth_uuid, 1);
  65     u->uuid = pa_xstrdup(uuid);
  66     PA_LLIST_INIT(pa_bluetooth_uuid, u);
  67
  68     return u;
  69 }
  70
  71 static void uuid_free(pa_bluetooth_uuid *u) {
  72     pa_assert(u);
  73
  74     pa_xfree(u->uuid);
  75     pa_xfree(u);
  76 }
  77
  78 static pa_bluetooth_device* device_new(const char *path) {
  79     pa_bluetooth_device *d;
  80
  81     d = pa_xnew(pa_bluetooth_device, 1);
  82
  83     d->dead = FALSE;
  84
  85     d->device_info_valid = 0;
  86
  87     d->name = NULL;
  88     d->path = pa_xstrdup(path);
  89     d->paired = -1;
  90     d->alias = NULL;
  91     d->device_connected = -1;
  92     PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
  93     d->address = NULL;
  94     d->class = -1;
  95     d->trusted = -1;
  96
  97     d->audio_state = PA_BT_AUDIO_STATE_INVALID;
  98     d->audio_sink_state = PA_BT_AUDIO_STATE_INVALID;
  99     d->headset_state = PA_BT_AUDIO_STATE_INVALID;
 100
 101     return d;
 102 }
 103
 104 static void device_free(pa_bluetooth_device *d) {
 105     pa_bluetooth_uuid *u;
 106
 107     pa_assert(d);
 108
 109     while ((u = d->uuids)) {
 110         PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
 111         uuid_free(u);
 112     }
 113
 114     pa_xfree(d->name);
 115     pa_xfree(d->path);
 116     pa_xfree(d->alias);
 117     pa_xfree(d->address);
 118     pa_xfree(d);
 119 }
 120
 121 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 122     pa_assert(d);
 123
 124     return
 125         d->device_info_valid &&
 126         (d->audio_state != PA_BT_AUDIO_STATE_INVALID ||
 127          d->audio_sink_state != PA_BT_AUDIO_STATE_INVALID ||
 128          d->headset_state != PA_BT_AUDIO_STATE_INVALID);
 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                     DBusMessage *m;
 225
 226                     dbus_message_iter_get_basic(&ai, &value);
 227                     node = uuid_new(value);
 228                     PA_LLIST_PREPEND(pa_bluetooth_uuid, d->uuids, node);
 229
 230                     /* 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 */
 231                     pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Audio", "GetProperties"));
 232                     send_and_add_to_pending(y, d, m, get_properties_reply);
 233
 234                     /* Vudentz said the interfaces are here when the UUIDs are announced */
 235                     if (strcasecmp(HSP_HS_UUID, value) == 0 || strcasecmp(HFP_HS_UUID, value) == 0) {
 236                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Headset", "GetProperties"));
 237                         send_and_add_to_pending(y, d, m, get_properties_reply);
 238                     } else if (strcasecmp(A2DP_SINK_UUID, value) == 0) {
 239                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.AudioSink", "GetProperties"));
 240                         send_and_add_to_pending(y, d, m, get_properties_reply);
 241                     }
 242
 243                     if (!dbus_message_iter_next(&ai))
 244                         break;
 245                 }
 246             }
 247
 248             break;
 249         }
 250     }
 251
 252     return 0;
 253 }
 254
 255 static int parse_audio_property(pa_bluetooth_discovery *u, int *state, DBusMessageIter *i) {
 256     const char *key;
 257     DBusMessageIter variant_i;
 258
 259     pa_assert(u);
 260     pa_assert(state);
 261     pa_assert(i);
 262
 263     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 264         pa_log("Property name not a string.");
 265         return -1;
 266     }
 267
 268     dbus_message_iter_get_basic(i, &key);
 269
 270     if (!dbus_message_iter_next(i))  {
 271         pa_log("Property value missing");
 272         return -1;
 273     }
 274
 275     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 276         pa_log("Property value not a variant.");
 277         return -1;
 278     }
 279
 280     dbus_message_iter_recurse(i, &variant_i);
 281
 282 /*     pa_log_debug("Parsing property org.bluez.{Audio|AudioSink|Headset}.%s", key); */
 283
 284     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 285
 286         case DBUS_TYPE_STRING: {
 287
 288             const char *value;
 289             dbus_message_iter_get_basic(&variant_i, &value);
 290
 291             if (pa_streq(key, "State"))
 292                 *state = pa_bt_audio_state_from_string(value);
 293 /*             pa_log_debug("Value %s", value); */
 294         }
 295
 296         case DBUS_TYPE_BOOLEAN: {
 297
 298             dbus_bool_t value;
 299             dbus_message_iter_get_basic(&variant_i, &value);
 300
 301             /* if (pa_streq(key, "Connected")) */
 302             /*     *connected = !!value; */
 303
 304 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 305
 306             break;
 307         }
 308     }
 309
 310     return 0;
 311 }
 312
 313 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t dead) {
 314     pa_assert(y);
 315     pa_assert(d);
 316
 317     if (!device_is_audio(d))
 318         return;
 319
 320     d->dead = dead;
 321     pa_hook_fire(&y->hook, d);
 322 }
 323
 324 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 325     DBusMessage *r;
 326     DBusMessageIter arg_i, element_i;
 327     pa_dbus_pending *p;
 328     pa_bluetooth_device *d;
 329     pa_bluetooth_discovery *y;
 330     int valid;
 331
 332     pa_assert_se(p = userdata);
 333     pa_assert_se(y = p->context_data);
 334     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 335
 336 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 337 /*                  dbus_message_get_interface(p->message), */
 338 /*                  dbus_message_get_path(p->message)); */
 339
 340     d = p->call_data;
 341
 342     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 343
 344     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 345         d->device_info_valid = valid;
 346
 347     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 348
 349         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 350             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 351
 352         goto finish;
 353     }
 354
 355     if (!dbus_message_iter_init(r, &arg_i)) {
 356         pa_log("GetProperties reply has no arguments.");
 357         goto finish;
 358     }
 359
 360     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 361         pa_log("GetProperties argument is not an array.");
 362         goto finish;
 363     }
 364
 365     dbus_message_iter_recurse(&arg_i, &element_i);
 366     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 367
 368         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 369             DBusMessageIter dict_i;
 370
 371             dbus_message_iter_recurse(&element_i, &dict_i);
 372
 373             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 374                 if (parse_device_property(y, d, &dict_i) < 0)
 375                     goto finish;
 376
 377             } else if (dbus_message_has_interface(p->message, "org.bluez.Audio")) {
 378                 if (parse_audio_property(y, &d->audio_state, &dict_i) < 0)
 379                     goto finish;
 380
 381             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 382                 if (parse_audio_property(y, &d->headset_state, &dict_i) < 0)
 383                     goto finish;
 384
 385             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 386                 if (parse_audio_property(y, &d->audio_sink_state, &dict_i) < 0)
 387                     goto finish;
 388             }
 389         }
 390
 391         if (!dbus_message_iter_next(&element_i))
 392             break;
 393     }
 394
 395 finish:
 396     run_callback(y, d, FALSE);
 397
 398     dbus_message_unref(r);
 399
 400     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 401     pa_dbus_pending_free(p);
 402 }
 403
 404 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 405     pa_dbus_pending *p;
 406     DBusPendingCall *call;
 407
 408     pa_assert(y);
 409     pa_assert(m);
 410
 411     pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
 412
 413     p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, d);
 414     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 415     dbus_pending_call_set_notify(call, func, p, NULL);
 416
 417     return p;
 418 }
 419
 420 static void found_device(pa_bluetooth_discovery *y, const char* path) {
 421     DBusMessage *m;
 422     pa_bluetooth_device *d;
 423
 424     pa_assert(y);
 425     pa_assert(path);
 426
 427     d = device_new(path);
 428
 429     pa_hashmap_put(y->devices, d->path, d);
 430
 431     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 432     send_and_add_to_pending(y, d, m, get_properties_reply);
 433 }
 434
 435 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 436     DBusError e;
 437     DBusMessage *r;
 438     char **paths = NULL;
 439     int num = -1;
 440     pa_dbus_pending *p;
 441     pa_bluetooth_discovery *y;
 442
 443     pa_assert(pending);
 444
 445     dbus_error_init(&e);
 446
 447     pa_assert_se(p = userdata);
 448     pa_assert_se(y = p->context_data);
 449     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 450
 451     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 452         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 453         goto end;
 454     }
 455
 456     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 457         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 458         dbus_error_free(&e);
 459     } else {
 460         int i;
 461
 462         for (i = 0; i < num; ++i)
 463             found_device(y, paths[i]);
 464     }
 465
 466 end:
 467     if (paths)
 468         dbus_free_string_array (paths);
 469
 470     dbus_message_unref(r);
 471
 472     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 473     pa_dbus_pending_free(p);
 474 }
 475
 476 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 477     DBusMessage *m;
 478
 479     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 480     send_and_add_to_pending(y, NULL, m, list_devices_reply);
 481 }
 482
 483 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 484     DBusError e;
 485     DBusMessage *r;
 486     char **paths = NULL;
 487     int num = -1;
 488     pa_dbus_pending *p;
 489     pa_bluetooth_discovery *y;
 490
 491     pa_assert(pending);
 492
 493     dbus_error_init(&e);
 494
 495     pa_assert_se(p = userdata);
 496     pa_assert_se(y = p->context_data);
 497     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 498
 499     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 500         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 501         goto end;
 502     }
 503
 504     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 505         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 506         dbus_error_free(&e);
 507     } else {
 508         int i;
 509
 510         for (i = 0; i < num; ++i)
 511             found_adapter(y, paths[i]);
 512     }
 513
 514 end:
 515     if (paths)
 516         dbus_free_string_array (paths);
 517
 518     dbus_message_unref(r);
 519
 520     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 521     pa_dbus_pending_free(p);
 522 }
 523
 524 static void list_adapters(pa_bluetooth_discovery *y) {
 525     DBusMessage *m;
 526     pa_assert(y);
 527
 528     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 529     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 530 }
 531
 532 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 533     DBusError err;
 534     pa_bluetooth_discovery *y;
 535
 536     pa_assert(bus);
 537     pa_assert(m);
 538
 539     pa_assert_se(y = userdata);
 540
 541     dbus_error_init(&err);
 542
 543     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 544             dbus_message_get_interface(m),
 545             dbus_message_get_path(m),
 546             dbus_message_get_member(m));
 547
 548     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 549         const char *path;
 550         pa_bluetooth_device *d;
 551
 552         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 553             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 554             goto fail;
 555         }
 556
 557         pa_log_debug("Device %s removed", path);
 558
 559         if ((d = pa_hashmap_remove(y->devices, path))) {
 560             run_callback(y, d, TRUE);
 561             device_free(d);
 562         }
 563
 564         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 565
 566     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 567         const char *path;
 568
 569         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 570             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 571             goto fail;
 572         }
 573
 574         pa_log_debug("Device %s created", path);
 575
 576         found_device(y, path);
 577         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 578
 579     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 580         const char *path;
 581
 582         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 583             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 584             goto fail;
 585         }
 586
 587         pa_log_debug("Adapter %s created", path);
 588
 589         found_adapter(y, path);
 590         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 591
 592     } else if (dbus_message_is_signal(m, "org.bluez.Audio", "PropertyChanged") ||
 593                dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 594                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 595                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 596
 597         pa_bluetooth_device *d;
 598
 599         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 600             DBusMessageIter arg_i;
 601
 602             if (!dbus_message_iter_init(m, &arg_i)) {
 603                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 604                 goto fail;
 605             }
 606
 607             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 608                 if (parse_device_property(y, d, &arg_i) < 0)
 609                     goto fail;
 610
 611             } else if (dbus_message_has_interface(m, "org.bluez.Audio")) {
 612                 if (parse_audio_property(y, &d->audio_state, &arg_i) < 0)
 613                     goto fail;
 614
 615             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 616                 if (parse_audio_property(y, &d->headset_state, &arg_i) < 0)
 617                     goto fail;
 618
 619             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 620                 if (parse_audio_property(y, &d->audio_sink_state, &arg_i) < 0)
 621                     goto fail;
 622             }
 623
 624             run_callback(y, d, FALSE);
 625         }
 626
 627         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 628     }
 629
 630 fail:
 631     dbus_error_free(&err);
 632
 633     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 634 }
 635
 636 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_address(pa_bluetooth_discovery *y, const char* address) {
 637     pa_bluetooth_device *d;
 638     void *state = NULL;
 639
 640     pa_assert(y);
 641     pa_assert(PA_REFCNT_VALUE(y) > 0);
 642     pa_assert(address);
 643
 644     if (!pa_hook_is_firing(&y->hook))
 645         pa_bluetooth_discovery_sync(y);
 646
 647     while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
 648         if (pa_streq(d->address, address))
 649             return d;
 650
 651     return NULL;
 652 }
 653
 654 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_path(pa_bluetooth_discovery *y, const char* path) {
 655     pa_assert(y);
 656     pa_assert(PA_REFCNT_VALUE(y) > 0);
 657     pa_assert(path);
 658
 659     if (!pa_hook_is_firing(&y->hook))
 660         pa_bluetooth_discovery_sync(y);
 661
 662     return pa_hashmap_get(y->devices, path);
 663 }
 664
 665 static int setup_dbus(pa_bluetooth_discovery *y) {
 666     DBusError err;
 667
 668     dbus_error_init(&err);
 669
 670     y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err);
 671
 672     if (dbus_error_is_set(&err) || !y->connection) {
 673         pa_log("Failed to get D-Bus connection: %s", err.message);
 674         dbus_error_free(&err);
 675         return -1;
 676     }
 677
 678     return 0;
 679 }
 680
 681 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
 682     DBusError err;
 683     pa_bluetooth_discovery *y;
 684
 685     pa_assert(c);
 686
 687     dbus_error_init(&err);
 688
 689     if ((y = pa_shared_get(c, "bluetooth-discovery")))
 690         return pa_bluetooth_discovery_ref(y);
 691
 692     y = pa_xnew0(pa_bluetooth_discovery, 1);
 693     PA_REFCNT_INIT(y);
 694     y->core = c;
 695     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 696     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
 697     pa_hook_init(&y->hook, y);
 698     pa_shared_set(c, "bluetooth-discovery", y);
 699
 700     if (setup_dbus(y) < 0)
 701         goto fail;
 702
 703     /* dynamic detection of bluetooth audio devices */
 704     if (!dbus_connection_add_filter(pa_dbus_connection_get(y->connection), filter_cb, y, NULL)) {
 705         pa_log_error("Failed to add filter function");
 706         goto fail;
 707     }
 708
 709     if (pa_dbus_add_matches(
 710                 pa_dbus_connection_get(y->connection), &err,
 711                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 712                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 713                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 714                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 715                 "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
 716                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 717                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
 718         pa_log("Failed to add D-Bus matches: %s", err.message);
 719         goto fail;
 720     }
 721
 722     list_adapters(y);
 723
 724     return y;
 725
 726 fail:
 727
 728     if (y)
 729         pa_bluetooth_discovery_unref(y);
 730
 731     dbus_error_free(&err);
 732
 733     return NULL;
 734 }
 735
 736 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
 737     pa_assert(y);
 738     pa_assert(PA_REFCNT_VALUE(y) > 0);
 739
 740     PA_REFCNT_INC(y);
 741
 742     return y;
 743 }
 744
 745 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
 746     pa_bluetooth_device *d;
 747
 748     pa_assert(y);
 749     pa_assert(PA_REFCNT_VALUE(y) > 0);
 750
 751     if (PA_REFCNT_DEC(y) > 0)
 752         return;
 753
 754     pa_dbus_free_pending_list(&y->pending);
 755
 756     if (y->devices) {
 757         while ((d = pa_hashmap_steal_first(y->devices))) {
 758             run_callback(y, d, TRUE);
 759             device_free(d);
 760         }
 761
 762         pa_hashmap_free(y->devices, NULL, NULL);
 763     }
 764
 765     if (y->connection) {
 766         pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
 767                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
 768                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
 769                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
 770                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
 771                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
 772                                "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
 773                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
 774                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
 775
 776         dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
 777
 778         pa_dbus_connection_unref(y->connection);
 779     }
 780
 781     pa_hook_done(&y->hook);
 782
 783     if (y->core)
 784         pa_shared_remove(y->core, "bluetooth-discovery");
 785 }
 786
 787 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
 788     pa_assert(y);
 789     pa_assert(PA_REFCNT_VALUE(y) > 0);
 790
 791     pa_dbus_sync_pending_list(&y->pending);
 792 }
 793
 794 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y) {
 795     pa_assert(y);
 796     pa_assert(PA_REFCNT_VALUE(y) > 0);
 797
 798     return &y->hook;
 799 }
 800
 801 const char*pa_bluetooth_get_form_factor(uint32_t class) {
 802     unsigned i;
 803     const char *r;
 804
 805     static const char * const table[] = {
 806         [1] = "headset",
 807         [2] = "hands-free",
 808         [4] = "microphone",
 809         [5] = "speaker",
 810         [6] = "headphone",
 811         [7] = "portable",
 812         [8] = "car",
 813         [10] = "hifi"
 814     };
 815
 816     if (((class >> 8) & 31) != 4)
 817         return NULL;
 818
 819     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
 820         r =  NULL;
 821     else
 822         r = table[i];
 823
 824     if (!r)
 825         pa_log_debug("Unknown Bluetooth minor device class %u", i);
 826
 827     return r;
 828 }
 829
 830 char *pa_bluetooth_cleanup_name(const char *name) {
 831     char *t, *s, *d;
 832     pa_bool_t space = FALSE;
 833
 834     pa_assert(name);
 835
 836     while ((*name >= 1 && *name <= 32) || *name >= 127)
 837         name++;
 838
 839     t = pa_xstrdup(name);
 840
 841     for (s = d = t; *s; s++) {
 842
 843         if (*s <= 32 || *s >= 127 || *s == '_') {
 844             space = TRUE;
 845             continue;
 846         }
 847
 848         if (space) {
 849             *(d++) = ' ';
 850             space = FALSE;
 851         }
 852
 853         *(d++) = *s;
 854     }
 855
 856     *d = 0;
 857
 858     return t;
 859 }
 860
 861 pa_bool_t pa_bluetooth_uuid_has(pa_bluetooth_uuid *uuids, const char *uuid) {
 862     pa_assert(uuid);
 863
 864     while (uuids) {
 865         if (strcasecmp(uuids->uuid, uuid) == 0)
 866             return TRUE;
 867
 868         uuids = uuids->next;
 869     }
 870
 871     return FALSE;
 872 }