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

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2008-2009 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 #include "ipc.h"
  32
  33 #define HFP_AG_ENDPOINT "/MediaEndpoint/HFPAG"
  34 #define A2DP_SOURCE_ENDPOINT "/MediaEndpoint/A2DPSource"
  35 #define A2DP_SINK_ENDPOINT "/MediaEndpoint/A2DPSink"
  36
  37 #define ENDPOINT_INTROSPECT_XML                                         \
  38     DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                           \
  39     "<node>"                                                            \
  40     " <interface name=\"org.bluez.MediaEndpoint\">"                     \
  41     "  <method name=\"SetConfiguration\">"                              \
  42     "   <arg name=\"transport\" direction=\"in\" type=\"o\"/>"          \
  43     "   <arg name=\"configuration\" direction=\"in\" type=\"ay\"/>"     \
  44     "  </method>"                                                       \
  45     "  <method name=\"SelectConfiguration\">"                           \
  46     "   <arg name=\"capabilities\" direction=\"in\" type=\"ay\"/>"      \
  47     "   <arg name=\"configuration\" direction=\"out\" type=\"ay\"/>"    \
  48     "  </method>"                                                       \
  49     "  <method name=\"ClearConfiguration\">"                            \
  50     "  </method>"                                                       \
  51     "  <method name=\"Release\">"                                       \
  52     "  </method>"                                                       \
  53     " </interface>"                                                     \
  54     " <interface name=\"org.freedesktop.DBus.Introspectable\">"         \
  55     "  <method name=\"Introspect\">"                                    \
  56     "   <arg name=\"data\" type=\"s\" direction=\"out\"/>"              \
  57     "  </method>"                                                       \
  58     " </interface>"                                                     \
  59     "</node>"
  60
  61 #define MAX_BITPOOL 64
  62 #define MIN_BITPOOL 2U
  63
  64 struct pa_bluetooth_discovery {
  65     PA_REFCNT_DECLARE;
  66
  67     pa_core *core;
  68     pa_dbus_connection *connection;
  69     PA_LLIST_HEAD(pa_dbus_pending, pending);
  70     pa_hashmap *devices;
  71     pa_hook hook;
  72     pa_bool_t filter_added;
  73 };
  74
  75 static void get_properties_reply(DBusPendingCall *pending, void *userdata);
  76 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func);
  77
  78 static pa_bt_audio_state_t pa_bt_audio_state_from_string(const char* value) {
  79     pa_assert(value);
  80
  81     if (pa_streq(value, "disconnected"))
  82         return PA_BT_AUDIO_STATE_DISCONNECTED;
  83     else if (pa_streq(value, "connecting"))
  84         return PA_BT_AUDIO_STATE_CONNECTING;
  85     else if (pa_streq(value, "connected"))
  86         return PA_BT_AUDIO_STATE_CONNECTED;
  87     else if (pa_streq(value, "playing"))
  88         return PA_BT_AUDIO_STATE_PLAYING;
  89
  90     return PA_BT_AUDIO_STATE_INVALID;
  91 }
  92
  93 static pa_bluetooth_uuid *uuid_new(const char *uuid) {
  94     pa_bluetooth_uuid *u;
  95
  96     u = pa_xnew(pa_bluetooth_uuid, 1);
  97     u->uuid = pa_xstrdup(uuid);
  98     PA_LLIST_INIT(pa_bluetooth_uuid, u);
  99
 100     return u;
 101 }
 102
 103 static void uuid_free(pa_bluetooth_uuid *u) {
 104     pa_assert(u);
 105
 106     pa_xfree(u->uuid);
 107     pa_xfree(u);
 108 }
 109
 110 static pa_bluetooth_device* device_new(const char *path) {
 111     pa_bluetooth_device *d;
 112
 113     d = pa_xnew(pa_bluetooth_device, 1);
 114
 115     d->dead = FALSE;
 116
 117     d->device_info_valid = 0;
 118
 119     d->name = NULL;
 120     d->path = pa_xstrdup(path);
 121     d->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 122     d->paired = -1;
 123     d->alias = NULL;
 124     d->device_connected = -1;
 125     PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
 126     d->address = NULL;
 127     d->class = -1;
 128     d->trusted = -1;
 129
 130     d->audio_state = PA_BT_AUDIO_STATE_INVALID;
 131     d->audio_sink_state = PA_BT_AUDIO_STATE_INVALID;
 132     d->audio_source_state = PA_BT_AUDIO_STATE_INVALID;
 133     d->headset_state = PA_BT_AUDIO_STATE_INVALID;
 134     d->hfgw_state = PA_BT_AUDIO_STATE_INVALID;
 135
 136     return d;
 137 }
 138
 139 static void transport_free(pa_bluetooth_transport *t) {
 140     pa_assert(t);
 141
 142     pa_xfree(t->path);
 143     pa_xfree(t->config);
 144     pa_xfree(t);
 145 }
 146
 147 static void device_free(pa_bluetooth_device *d) {
 148     pa_bluetooth_uuid *u;
 149     pa_bluetooth_transport *t;
 150
 151     pa_assert(d);
 152
 153     while ((t = pa_hashmap_steal_first(d->transports)))
 154         transport_free(t);
 155
 156     pa_hashmap_free(d->transports, NULL, NULL);
 157
 158     while ((u = d->uuids)) {
 159         PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
 160         uuid_free(u);
 161     }
 162
 163     pa_xfree(d->name);
 164     pa_xfree(d->path);
 165     pa_xfree(d->alias);
 166     pa_xfree(d->address);
 167     pa_xfree(d);
 168 }
 169
 170 static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
 171     pa_assert(d);
 172
 173     return
 174         d->device_info_valid && (d->hfgw_state != PA_BT_AUDIO_STATE_INVALID ||
 175         (d->audio_state != PA_BT_AUDIO_STATE_INVALID &&
 176          (d->audio_sink_state != PA_BT_AUDIO_STATE_INVALID ||
 177           d->audio_source_state != PA_BT_AUDIO_STATE_INVALID ||
 178           d->headset_state != PA_BT_AUDIO_STATE_INVALID)));
 179 }
 180
 181 static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
 182     const char *key;
 183     DBusMessageIter variant_i;
 184
 185     pa_assert(y);
 186     pa_assert(d);
 187     pa_assert(i);
 188
 189     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 190         pa_log("Property name not a string.");
 191         return -1;
 192     }
 193
 194     dbus_message_iter_get_basic(i, &key);
 195
 196     if (!dbus_message_iter_next(i))  {
 197         pa_log("Property value missing");
 198         return -1;
 199     }
 200
 201     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 202         pa_log("Property value not a variant.");
 203         return -1;
 204     }
 205
 206     dbus_message_iter_recurse(i, &variant_i);
 207
 208 /*     pa_log_debug("Parsing property org.bluez.Device.%s", key); */
 209
 210     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 211
 212         case DBUS_TYPE_STRING: {
 213
 214             const char *value;
 215             dbus_message_iter_get_basic(&variant_i, &value);
 216
 217             if (pa_streq(key, "Name")) {
 218                 pa_xfree(d->name);
 219                 d->name = pa_xstrdup(value);
 220             } else if (pa_streq(key, "Alias")) {
 221                 pa_xfree(d->alias);
 222                 d->alias = pa_xstrdup(value);
 223             } else if (pa_streq(key, "Address")) {
 224                 pa_xfree(d->address);
 225                 d->address = pa_xstrdup(value);
 226             }
 227
 228 /*             pa_log_debug("Value %s", value); */
 229
 230             break;
 231         }
 232
 233         case DBUS_TYPE_BOOLEAN: {
 234
 235             dbus_bool_t value;
 236             dbus_message_iter_get_basic(&variant_i, &value);
 237
 238             if (pa_streq(key, "Paired"))
 239                 d->paired = !!value;
 240             else if (pa_streq(key, "Connected"))
 241                 d->device_connected = !!value;
 242             else if (pa_streq(key, "Trusted"))
 243                 d->trusted = !!value;
 244
 245 /*             pa_log_debug("Value %s", pa_yes_no(value)); */
 246
 247             break;
 248         }
 249
 250         case DBUS_TYPE_UINT32: {
 251
 252             uint32_t value;
 253             dbus_message_iter_get_basic(&variant_i, &value);
 254
 255             if (pa_streq(key, "Class"))
 256                 d->class = (int) value;
 257
 258 /*             pa_log_debug("Value %u", (unsigned) value); */
 259
 260             break;
 261         }
 262
 263         case DBUS_TYPE_ARRAY: {
 264
 265             DBusMessageIter ai;
 266             dbus_message_iter_recurse(&variant_i, &ai);
 267
 268             if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
 269                 pa_streq(key, "UUIDs")) {
 270
 271                 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
 272                     pa_bluetooth_uuid *node;
 273                     const char *value;
 274                     DBusMessage *m;
 275
 276                     dbus_message_iter_get_basic(&ai, &value);
 277                     node = uuid_new(value);
 278                     PA_LLIST_PREPEND(pa_bluetooth_uuid, d->uuids, node);
 279
 280                     /* Vudentz said the interfaces are here when the UUIDs are announced */
 281                     if (strcasecmp(HSP_AG_UUID, value) == 0 || strcasecmp(HFP_AG_UUID, value) == 0) {
 282                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.HandsfreeGateway", "GetProperties"));
 283                         send_and_add_to_pending(y, d, m, get_properties_reply);
 284                     } else if (strcasecmp(HSP_HS_UUID, value) == 0 || strcasecmp(HFP_HS_UUID, value) == 0) {
 285                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Headset", "GetProperties"));
 286                         send_and_add_to_pending(y, d, m, get_properties_reply);
 287                     } else if (strcasecmp(A2DP_SINK_UUID, value) == 0) {
 288                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.AudioSink", "GetProperties"));
 289                         send_and_add_to_pending(y, d, m, get_properties_reply);
 290                     } else if (strcasecmp(A2DP_SOURCE_UUID, value) == 0) {
 291                         pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.AudioSource", "GetProperties"));
 292                         send_and_add_to_pending(y, d, m, get_properties_reply);
 293                     }
 294
 295                     /* 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 */
 296                     pa_assert_se(m = dbus_message_new_method_call("org.bluez", d->path, "org.bluez.Audio", "GetProperties"));
 297                     send_and_add_to_pending(y, d, m, get_properties_reply);
 298
 299                     if (!dbus_message_iter_next(&ai))
 300                         break;
 301                 }
 302             }
 303
 304             break;
 305         }
 306     }
 307
 308     return 0;
 309 }
 310
 311 static int parse_audio_property(pa_bluetooth_discovery *u, int *state, DBusMessageIter *i) {
 312     const char *key;
 313     DBusMessageIter variant_i;
 314
 315     pa_assert(u);
 316     pa_assert(state);
 317     pa_assert(i);
 318
 319     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
 320         pa_log("Property name not a string.");
 321         return -1;
 322     }
 323
 324     dbus_message_iter_get_basic(i, &key);
 325
 326     if (!dbus_message_iter_next(i))  {
 327         pa_log("Property value missing");
 328         return -1;
 329     }
 330
 331     if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
 332         pa_log("Property value not a variant.");
 333         return -1;
 334     }
 335
 336     dbus_message_iter_recurse(i, &variant_i);
 337
 338 /*     pa_log_debug("Parsing property org.bluez.{Audio|AudioSink|AudioSource|Headset}.%s", key); */
 339
 340     switch (dbus_message_iter_get_arg_type(&variant_i)) {
 341
 342         case DBUS_TYPE_STRING: {
 343
 344             const char *value;
 345             dbus_message_iter_get_basic(&variant_i, &value);
 346
 347             if (pa_streq(key, "State")) {
 348                 *state = pa_bt_audio_state_from_string(value);
 349                 pa_log_debug("dbus: property 'State' changed to value '%s'", value);
 350             }
 351
 352             break;
 353         }
 354     }
 355
 356     return 0;
 357 }
 358
 359 static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t dead) {
 360     pa_assert(y);
 361     pa_assert(d);
 362
 363     if (!device_is_audio(d))
 364         return;
 365
 366     d->dead = dead;
 367     pa_hook_fire(&y->hook, d);
 368 }
 369
 370 static void remove_all_devices(pa_bluetooth_discovery *y) {
 371     pa_bluetooth_device *d;
 372
 373     pa_assert(y);
 374
 375     while ((d = pa_hashmap_steal_first(y->devices))) {
 376         run_callback(y, d, TRUE);
 377         device_free(d);
 378     }
 379 }
 380
 381 static pa_bluetooth_device *found_device(pa_bluetooth_discovery *y, const char* path) {
 382     DBusMessage *m;
 383     pa_bluetooth_device *d;
 384
 385     pa_assert(y);
 386     pa_assert(path);
 387
 388     d = pa_hashmap_get(y->devices, path);
 389     if (d)
 390         return d;
 391
 392     d = device_new(path);
 393
 394     pa_hashmap_put(y->devices, d->path, d);
 395
 396     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
 397     send_and_add_to_pending(y, d, m, get_properties_reply);
 398
 399     /* Before we read the other properties (Audio, AudioSink, AudioSource,
 400      * Headset) we wait that the UUID is read */
 401     return d;
 402 }
 403
 404 static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
 405     DBusMessage *r;
 406     DBusMessageIter arg_i, element_i;
 407     pa_dbus_pending *p;
 408     pa_bluetooth_device *d;
 409     pa_bluetooth_discovery *y;
 410     int valid;
 411
 412     pa_assert_se(p = userdata);
 413     pa_assert_se(y = p->context_data);
 414     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 415
 416 /*     pa_log_debug("Got %s.GetProperties response for %s", */
 417 /*                  dbus_message_get_interface(p->message), */
 418 /*                  dbus_message_get_path(p->message)); */
 419
 420     /* We don't use p->call_data here right-away since the device
 421      * might already be invalidated at this point */
 422
 423     if (!(d = pa_hashmap_get(y->devices, dbus_message_get_path(p->message))))
 424         return;
 425
 426     pa_assert(p->call_data == d);
 427
 428     valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
 429
 430     if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
 431         d->device_info_valid = valid;
 432
 433     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 434         pa_log_debug("Bluetooth daemon is apparently not available.");
 435         remove_all_devices(y);
 436         goto finish2;
 437     }
 438
 439     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 440
 441         if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
 442             pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
 443
 444         goto finish;
 445     }
 446
 447     if (!dbus_message_iter_init(r, &arg_i)) {
 448         pa_log("GetProperties reply has no arguments.");
 449         goto finish;
 450     }
 451
 452     if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
 453         pa_log("GetProperties argument is not an array.");
 454         goto finish;
 455     }
 456
 457     dbus_message_iter_recurse(&arg_i, &element_i);
 458     while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
 459
 460         if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 461             DBusMessageIter dict_i;
 462
 463             dbus_message_iter_recurse(&element_i, &dict_i);
 464
 465             if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
 466                 if (parse_device_property(y, d, &dict_i) < 0)
 467                     goto finish;
 468
 469             } else if (dbus_message_has_interface(p->message, "org.bluez.Audio")) {
 470                 if (parse_audio_property(y, &d->audio_state, &dict_i) < 0)
 471                     goto finish;
 472
 473             } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
 474                 if (parse_audio_property(y, &d->headset_state, &dict_i) < 0)
 475                     goto finish;
 476
 477             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
 478                 if (parse_audio_property(y, &d->audio_sink_state, &dict_i) < 0)
 479                     goto finish;
 480
 481             }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSource")) {
 482                 if (parse_audio_property(y, &d->audio_source_state, &dict_i) < 0)
 483                     goto finish;
 484
 485             }  else if (dbus_message_has_interface(p->message, "org.bluez.HandsfreeGateway")) {
 486                 if (parse_audio_property(y, &d->hfgw_state, &arg_i) < 0)
 487                     goto finish;
 488
 489             }
 490         }
 491
 492         if (!dbus_message_iter_next(&element_i))
 493             break;
 494     }
 495
 496 finish:
 497     run_callback(y, d, FALSE);
 498
 499 finish2:
 500     dbus_message_unref(r);
 501
 502     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 503     pa_dbus_pending_free(p);
 504 }
 505
 506 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
 507     pa_dbus_pending *p;
 508     DBusPendingCall *call;
 509
 510     pa_assert(y);
 511     pa_assert(m);
 512
 513     pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
 514
 515     p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, d);
 516     PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
 517     dbus_pending_call_set_notify(call, func, p, NULL);
 518
 519     return p;
 520 }
 521
 522 static void register_endpoint_reply(DBusPendingCall *pending, void *userdata) {
 523     DBusError e;
 524     DBusMessage *r;
 525     pa_dbus_pending *p;
 526     pa_bluetooth_discovery *y;
 527
 528     pa_assert(pending);
 529
 530     dbus_error_init(&e);
 531
 532     pa_assert_se(p = userdata);
 533     pa_assert_se(y = p->context_data);
 534     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 535
 536     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 537         pa_log_debug("Bluetooth daemon is apparently not available.");
 538         remove_all_devices(y);
 539         goto finish;
 540     }
 541
 542     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 543         pa_log("Error from RegisterEndpoint reply: %s", dbus_message_get_error_name(r));
 544         goto finish;
 545     }
 546
 547 finish:
 548     dbus_message_unref(r);
 549
 550     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 551     pa_dbus_pending_free(p);
 552 }
 553
 554 static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
 555     DBusError e;
 556     DBusMessage *r;
 557     char **paths = NULL;
 558     int num = -1;
 559     pa_dbus_pending *p;
 560     pa_bluetooth_discovery *y;
 561
 562     pa_assert(pending);
 563
 564     dbus_error_init(&e);
 565
 566     pa_assert_se(p = userdata);
 567     pa_assert_se(y = p->context_data);
 568     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 569
 570     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 571         pa_log_debug("Bluetooth daemon is apparently not available.");
 572         remove_all_devices(y);
 573         goto finish;
 574     }
 575
 576     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 577         pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
 578         goto finish;
 579     }
 580
 581     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 582         pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
 583         dbus_error_free(&e);
 584     } else {
 585         int i;
 586
 587         for (i = 0; i < num; ++i)
 588             found_device(y, paths[i]);
 589     }
 590
 591 finish:
 592     if (paths)
 593         dbus_free_string_array (paths);
 594
 595     dbus_message_unref(r);
 596
 597     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 598     pa_dbus_pending_free(p);
 599 }
 600
 601 static void register_endpoint(pa_bluetooth_discovery *y, const char *path, const char *endpoint, const char *uuid)
 602 {
 603     DBusMessage *m;
 604     DBusMessageIter i, d;
 605     uint8_t codec = 0;
 606
 607     pa_log_debug("Registering %s on adapter %s.", endpoint, path);
 608
 609     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Media", "RegisterEndpoint"));
 610
 611     dbus_message_iter_init_append(m, &i);
 612
 613     dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &endpoint);
 614
 615     dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 616                                     DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
 617                                     &d);
 618
 619     pa_dbus_append_basic_variant_dict_entry(&d, "UUID", DBUS_TYPE_STRING, &uuid);
 620
 621     pa_dbus_append_basic_variant_dict_entry(&d, "Codec", DBUS_TYPE_BYTE, &codec);
 622
 623     if (pa_streq(uuid, HFP_AG_UUID)) {
 624         uint8_t capability = 0;
 625         uint8_t *caps = &capability;
 626         pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &caps, 1);
 627     } else {
 628         sbc_capabilities_raw_t capabilities;
 629         uint8_t *caps = (uint8_t *) &capabilities;
 630
 631         capabilities.channel_mode = BT_A2DP_CHANNEL_MODE_MONO | BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL |
 632                                     BT_A2DP_CHANNEL_MODE_STEREO | BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
 633         capabilities.frequency = BT_SBC_SAMPLING_FREQ_16000 | BT_SBC_SAMPLING_FREQ_32000 |
 634                                  BT_SBC_SAMPLING_FREQ_44100 | BT_SBC_SAMPLING_FREQ_48000;
 635         capabilities.allocation_method = BT_A2DP_ALLOCATION_SNR | BT_A2DP_ALLOCATION_LOUDNESS;
 636         capabilities.subbands = BT_A2DP_SUBBANDS_4 | BT_A2DP_SUBBANDS_8;
 637         capabilities.block_length = BT_A2DP_BLOCK_LENGTH_4 | BT_A2DP_BLOCK_LENGTH_8 |
 638                                     BT_A2DP_BLOCK_LENGTH_12 | BT_A2DP_BLOCK_LENGTH_16;
 639         capabilities.min_bitpool = MIN_BITPOOL;
 640         capabilities.max_bitpool = MAX_BITPOOL;
 641
 642         pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &caps, sizeof(capabilities));
 643     }
 644
 645     dbus_message_iter_close_container(&i, &d);
 646
 647     send_and_add_to_pending(y, NULL, m, register_endpoint_reply);
 648 }
 649
 650 static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
 651     DBusMessage *m;
 652
 653     pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
 654     send_and_add_to_pending(y, NULL, m, list_devices_reply);
 655
 656 #ifdef DBUS_TYPE_UNIX_FD
 657     register_endpoint(y, path, HFP_AG_ENDPOINT, HFP_AG_UUID);
 658     register_endpoint(y, path, A2DP_SOURCE_ENDPOINT, A2DP_SOURCE_UUID);
 659     register_endpoint(y, path, A2DP_SINK_ENDPOINT, A2DP_SINK_UUID);
 660 #endif
 661 }
 662
 663 static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
 664     DBusError e;
 665     DBusMessage *r;
 666     char **paths = NULL;
 667     int num = -1;
 668     pa_dbus_pending *p;
 669     pa_bluetooth_discovery *y;
 670
 671     pa_assert(pending);
 672
 673     dbus_error_init(&e);
 674
 675     pa_assert_se(p = userdata);
 676     pa_assert_se(y = p->context_data);
 677     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 678
 679     if (dbus_message_is_error(r, DBUS_ERROR_SERVICE_UNKNOWN)) {
 680         pa_log_debug("Bluetooth daemon is apparently not available.");
 681         remove_all_devices(y);
 682         goto finish;
 683     }
 684
 685     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 686         pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
 687         goto finish;
 688     }
 689
 690     if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
 691         pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
 692         dbus_error_free(&e);
 693     } else {
 694         int i;
 695
 696         for (i = 0; i < num; ++i)
 697             found_adapter(y, paths[i]);
 698     }
 699
 700 finish:
 701     if (paths)
 702         dbus_free_string_array (paths);
 703
 704     dbus_message_unref(r);
 705
 706     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 707     pa_dbus_pending_free(p);
 708 }
 709
 710 static void list_adapters(pa_bluetooth_discovery *y) {
 711     DBusMessage *m;
 712     pa_assert(y);
 713
 714     pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
 715     send_and_add_to_pending(y, NULL, m, list_adapters_reply);
 716 }
 717
 718 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 719     DBusError err;
 720     pa_bluetooth_discovery *y;
 721
 722     pa_assert(bus);
 723     pa_assert(m);
 724
 725     pa_assert_se(y = userdata);
 726
 727     dbus_error_init(&err);
 728
 729     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
 730             dbus_message_get_interface(m),
 731             dbus_message_get_path(m),
 732             dbus_message_get_member(m));
 733
 734     if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
 735         const char *path;
 736         pa_bluetooth_device *d;
 737
 738         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 739             pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
 740             goto fail;
 741         }
 742
 743         pa_log_debug("Device %s removed", path);
 744
 745         if ((d = pa_hashmap_remove(y->devices, path))) {
 746             run_callback(y, d, TRUE);
 747             device_free(d);
 748         }
 749
 750         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 751
 752     } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
 753         const char *path;
 754
 755         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 756             pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
 757             goto fail;
 758         }
 759
 760         pa_log_debug("Device %s created", path);
 761
 762         found_device(y, path);
 763         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 764
 765     } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
 766         const char *path;
 767
 768         if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
 769             pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
 770             goto fail;
 771         }
 772
 773         pa_log_debug("Adapter %s created", path);
 774
 775         found_adapter(y, path);
 776         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 777
 778     } else if (dbus_message_is_signal(m, "org.bluez.Audio", "PropertyChanged") ||
 779                dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
 780                dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
 781                dbus_message_is_signal(m, "org.bluez.AudioSource", "PropertyChanged") ||
 782                dbus_message_is_signal(m, "org.bluez.HandsfreeGateway", "PropertyChanged") ||
 783                dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
 784
 785         pa_bluetooth_device *d;
 786
 787         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 788             DBusMessageIter arg_i;
 789
 790             if (!dbus_message_iter_init(m, &arg_i)) {
 791                 pa_log("Failed to parse PropertyChanged: %s", err.message);
 792                 goto fail;
 793             }
 794
 795             if (dbus_message_has_interface(m, "org.bluez.Device")) {
 796                 if (parse_device_property(y, d, &arg_i) < 0)
 797                     goto fail;
 798
 799             } else if (dbus_message_has_interface(m, "org.bluez.Audio")) {
 800                 if (parse_audio_property(y, &d->audio_state, &arg_i) < 0)
 801                     goto fail;
 802
 803             } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
 804                 if (parse_audio_property(y, &d->headset_state, &arg_i) < 0)
 805                     goto fail;
 806
 807             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
 808                 if (parse_audio_property(y, &d->audio_sink_state, &arg_i) < 0)
 809                     goto fail;
 810
 811             }  else if (dbus_message_has_interface(m, "org.bluez.AudioSource")) {
 812                 if (parse_audio_property(y, &d->audio_source_state, &arg_i) < 0)
 813                     goto fail;
 814
 815             }  else if (dbus_message_has_interface(m, "org.bluez.HandsfreeGateway")) {
 816                 if (parse_audio_property(y, &d->hfgw_state, &arg_i) < 0)
 817                     goto fail;
 818             }
 819
 820             run_callback(y, d, FALSE);
 821         }
 822
 823         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 824
 825     } else if (dbus_message_is_signal(m, "org.bluez.Device", "DisconnectRequested")) {
 826         pa_bluetooth_device *d;
 827
 828         if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
 829             /* Device will disconnect in 2 sec */
 830             d->audio_state = PA_BT_AUDIO_STATE_DISCONNECTED;
 831             d->audio_sink_state = PA_BT_AUDIO_STATE_DISCONNECTED;
 832             d->audio_source_state = PA_BT_AUDIO_STATE_DISCONNECTED;
 833             d->headset_state = PA_BT_AUDIO_STATE_DISCONNECTED;
 834             d->hfgw_state = PA_BT_AUDIO_STATE_DISCONNECTED;
 835
 836             run_callback(y, d, FALSE);
 837         }
 838
 839         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 840
 841     } else if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
 842         const char *name, *old_owner, *new_owner;
 843
 844         if (!dbus_message_get_args(m, &err,
 845                                    DBUS_TYPE_STRING, &name,
 846                                    DBUS_TYPE_STRING, &old_owner,
 847                                    DBUS_TYPE_STRING, &new_owner,
 848                                    DBUS_TYPE_INVALID)) {
 849             pa_log("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
 850             goto fail;
 851         }
 852
 853         if (pa_streq(name, "org.bluez")) {
 854             if (old_owner && *old_owner) {
 855                 pa_log_debug("Bluetooth daemon disappeared.");
 856                 remove_all_devices(y);
 857             }
 858
 859             if (new_owner && *new_owner) {
 860                 pa_log_debug("Bluetooth daemon appeared.");
 861                 list_adapters(y);
 862             }
 863         }
 864
 865         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 866     }
 867
 868 fail:
 869     dbus_error_free(&err);
 870
 871     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 872 }
 873
 874 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_address(pa_bluetooth_discovery *y, const char* address) {
 875     pa_bluetooth_device *d;
 876     void *state = NULL;
 877
 878     pa_assert(y);
 879     pa_assert(PA_REFCNT_VALUE(y) > 0);
 880     pa_assert(address);
 881
 882     if (!pa_hook_is_firing(&y->hook))
 883         pa_bluetooth_discovery_sync(y);
 884
 885     while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
 886         if (pa_streq(d->address, address))
 887             return device_is_audio(d) ? d : NULL;
 888
 889     return NULL;
 890 }
 891
 892 const pa_bluetooth_device* pa_bluetooth_discovery_get_by_path(pa_bluetooth_discovery *y, const char* path) {
 893     pa_bluetooth_device *d;
 894
 895     pa_assert(y);
 896     pa_assert(PA_REFCNT_VALUE(y) > 0);
 897     pa_assert(path);
 898
 899     if (!pa_hook_is_firing(&y->hook))
 900         pa_bluetooth_discovery_sync(y);
 901
 902     if ((d = pa_hashmap_get(y->devices, path)))
 903         if (device_is_audio(d))
 904             return d;
 905
 906     return NULL;
 907 }
 908
 909 const pa_bluetooth_transport* pa_bluetooth_discovery_get_transport(pa_bluetooth_discovery *y, const char *path) {
 910     pa_bluetooth_device *d;
 911     pa_bluetooth_transport *t;
 912     void *state = NULL;
 913
 914     pa_assert(y);
 915     pa_assert(PA_REFCNT_VALUE(y) > 0);
 916     pa_assert(path);
 917
 918     while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
 919         if ((t = pa_hashmap_get(d->transports, path)))
 920             return t;
 921
 922     return NULL;
 923 }
 924
 925 const pa_bluetooth_transport* pa_bluetooth_device_get_transport(const pa_bluetooth_device *d, enum profile profile) {
 926     pa_bluetooth_transport *t;
 927     void *state = NULL;
 928
 929     pa_assert(d);
 930
 931     while ((t = pa_hashmap_iterate(d->transports, &state, NULL)))
 932         if (t->profile == profile)
 933             return t;
 934
 935     return NULL;
 936 }
 937
 938 int pa_bluetooth_transport_acquire(const pa_bluetooth_transport *t, const char *accesstype) {
 939     DBusMessage *m, *r;
 940     DBusError err;
 941     int ret;
 942
 943     pa_assert(t);
 944     pa_assert(t->y);
 945
 946     dbus_error_init(&err);
 947
 948     pa_assert_se(m = dbus_message_new_method_call("org.bluez", t->path, "org.bluez.MediaTransport", "Acquire"));
 949     pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_STRING, &accesstype, DBUS_TYPE_INVALID));
 950     r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->y->connection), m, -1, &err);
 951
 952     if (dbus_error_is_set(&err) || !r) {
 953         pa_log("Failed to acquire transport fd: %s", err.message);
 954         dbus_error_free(&err);
 955         return -1;
 956     }
 957
 958 #ifdef DBUS_TYPE_UNIX_FD
 959     if (!dbus_message_get_args(r, &err, DBUS_TYPE_UNIX_FD, &ret, DBUS_TYPE_INVALID)) {
 960         pa_log("Failed to parse org.bluez.MediaTransport.Acquire(): %s", err.message);
 961         ret = -1;
 962         dbus_error_free(&err);
 963         goto fail;
 964     }
 965 #endif
 966
 967 fail:
 968     dbus_message_unref(r);
 969     return ret;
 970 }
 971
 972 void pa_bluetooth_transport_release(const pa_bluetooth_transport *t, const char *accesstype) {
 973     DBusMessage *m;
 974     DBusError err;
 975
 976     pa_assert(t);
 977     pa_assert(t->y);
 978
 979     dbus_error_init(&err);
 980
 981     pa_assert_se(m = dbus_message_new_method_call("org.bluez", t->path, "org.bluez.MediaTransport", "Release"));
 982     pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_STRING, &accesstype, DBUS_TYPE_INVALID));
 983     dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->y->connection), m, -1, &err);
 984
 985     if (dbus_error_is_set(&err)) {
 986         pa_log("Failed to release transport %s: %s", t->path, err.message);
 987         dbus_error_free(&err);
 988     } else
 989         pa_log_info("Transport %s released", t->path);
 990 }
 991
 992 static int setup_dbus(pa_bluetooth_discovery *y) {
 993     DBusError err;
 994
 995     dbus_error_init(&err);
 996
 997     y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err);
 998
 999     if (dbus_error_is_set(&err) || !y->connection) {
1000         pa_log("Failed to get D-Bus connection: %s", err.message);
1001         dbus_error_free(&err);
1002         return -1;
1003     }
1004
1005     return 0;
1006 }
1007
1008 static pa_bluetooth_transport *transport_new(pa_bluetooth_discovery *y, const char *path, enum profile p, const uint8_t *config, int size) {
1009     pa_bluetooth_transport *t;
1010
1011     t = pa_xnew0(pa_bluetooth_transport, 1);
1012     t->y = y;
1013     t->path = pa_xstrdup(path);
1014     t->profile = p;
1015     t->config_size = size;
1016
1017     if (size > 0) {
1018         t->config = pa_xnew(uint8_t, size);
1019         memcpy(t->config, config, size);
1020     }
1021
1022     return t;
1023 }
1024
1025 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1026     pa_bluetooth_discovery *y = userdata;
1027     pa_bluetooth_device *d;
1028     pa_bluetooth_transport *t;
1029     const char *path, *dev_path = NULL, *uuid = NULL;
1030     uint8_t *config = NULL;
1031     int size = 0;
1032     enum profile p;
1033     DBusMessageIter args, props;
1034     DBusMessage *r;
1035
1036     dbus_message_iter_init(m, &args);
1037
1038     dbus_message_iter_get_basic(&args, &path);
1039     if (!dbus_message_iter_next(&args))
1040         goto fail;
1041
1042     dbus_message_iter_recurse(&args, &props);
1043     if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
1044         goto fail;
1045
1046     /* Read transport properties */
1047     while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
1048         const char *key;
1049         DBusMessageIter value, entry;
1050         int var;
1051
1052         dbus_message_iter_recurse(&props, &entry);
1053         dbus_message_iter_get_basic(&entry, &key);
1054
1055         dbus_message_iter_next(&entry);
1056         dbus_message_iter_recurse(&entry, &value);
1057
1058         var = dbus_message_iter_get_arg_type(&value);
1059         if (strcasecmp(key, "UUID") == 0) {
1060             if (var != DBUS_TYPE_STRING)
1061                 goto fail;
1062             dbus_message_iter_get_basic(&value, &uuid);
1063         } else if (strcasecmp(key, "Device") == 0) {
1064             if (var != DBUS_TYPE_OBJECT_PATH)
1065                 goto fail;
1066             dbus_message_iter_get_basic(&value, &dev_path);
1067         } else if (strcasecmp(key, "Configuration") == 0) {
1068             DBusMessageIter array;
1069             if (var != DBUS_TYPE_ARRAY)
1070                 goto fail;
1071             dbus_message_iter_recurse(&value, &array);
1072             dbus_message_iter_get_fixed_array(&array, &config, &size);
1073         }
1074
1075         dbus_message_iter_next(&props);
1076     }
1077
1078     d = found_device(y, dev_path);
1079     if (!d)
1080         goto fail;
1081
1082     if (dbus_message_has_path(m, HFP_AG_ENDPOINT))
1083         p = PROFILE_HSP;
1084     else if (dbus_message_has_path(m, A2DP_SOURCE_ENDPOINT))
1085         p = PROFILE_A2DP;
1086     else
1087         p = PROFILE_A2DP_SOURCE;
1088
1089     t = transport_new(y, path, p, config, size);
1090     pa_hashmap_put(d->transports, t->path, t);
1091
1092     pa_log_debug("Transport %s profile %d available", t->path, t->profile);
1093
1094     pa_assert_se(r = dbus_message_new_method_return(m));
1095
1096     return r;
1097
1098 fail:
1099     pa_log("org.bluez.MediaEndpoint.SetConfiguration: invalid arguments");
1100     pa_assert_se(r = (dbus_message_new_error(m, "org.bluez.MediaEndpoint.Error.InvalidArguments",
1101                                                         "Unable to set configuration")));
1102     return r;
1103 }
1104
1105 static DBusMessage *endpoint_clear_configuration(DBusConnection *c, DBusMessage *m, void *userdata) {
1106     pa_bluetooth_discovery *y = userdata;
1107     pa_bluetooth_device *d;
1108     pa_bluetooth_transport *t;
1109     void *state = NULL;
1110     DBusMessage *r;
1111     DBusError e;
1112     const char *path;
1113
1114     dbus_error_init(&e);
1115
1116     if (!dbus_message_get_args(m, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
1117         pa_log("org.bluez.MediaEndpoint.ClearConfiguration: %s", e.message);
1118         dbus_error_free(&e);
1119         goto fail;
1120     }
1121
1122     while ((d = pa_hashmap_iterate(y->devices, &state, NULL))) {
1123         if ((t = pa_hashmap_get(d->transports, path))) {
1124             pa_log_debug("Clearing transport %s profile %d", t->path, t->profile);
1125             pa_hashmap_remove(d->transports, t->path);
1126             transport_free(t);
1127             break;
1128         }
1129     }
1130
1131     pa_assert_se(r = dbus_message_new_method_return(m));
1132
1133     return r;
1134
1135 fail:
1136     pa_assert_se(r = (dbus_message_new_error(m, "org.bluez.MediaEndpoint.Error.InvalidArguments",
1137                                                         "Unable to clear configuration")));
1138     return r;
1139 }
1140
1141 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
1142
1143     switch (freq) {
1144         case BT_SBC_SAMPLING_FREQ_16000:
1145         case BT_SBC_SAMPLING_FREQ_32000:
1146             return 53;
1147
1148         case BT_SBC_SAMPLING_FREQ_44100:
1149
1150             switch (mode) {
1151                 case BT_A2DP_CHANNEL_MODE_MONO:
1152                 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
1153                     return 31;
1154
1155                 case BT_A2DP_CHANNEL_MODE_STEREO:
1156                 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
1157                     return 53;
1158
1159                 default:
1160                     pa_log_warn("Invalid channel mode %u", mode);
1161                     return 53;
1162             }
1163
1164         case BT_SBC_SAMPLING_FREQ_48000:
1165
1166             switch (mode) {
1167                 case BT_A2DP_CHANNEL_MODE_MONO:
1168                 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
1169                     return 29;
1170
1171                 case BT_A2DP_CHANNEL_MODE_STEREO:
1172                 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
1173                     return 51;
1174
1175                 default:
1176                     pa_log_warn("Invalid channel mode %u", mode);
1177                     return 51;
1178             }
1179
1180         default:
1181             pa_log_warn("Invalid sampling freq %u", freq);
1182             return 53;
1183     }
1184 }
1185
1186 static DBusMessage *endpoint_select_configuration(DBusConnection *c, DBusMessage *m, void *userdata) {
1187     pa_bluetooth_discovery *y = userdata;
1188     sbc_capabilities_raw_t *cap, config;
1189     uint8_t *pconf = (uint8_t *) &config;
1190     int i, size;
1191     DBusMessage *r;
1192     DBusError e;
1193
1194     static const struct {
1195         uint32_t rate;
1196         uint8_t cap;
1197     } freq_table[] = {
1198         { 16000U, BT_SBC_SAMPLING_FREQ_16000 },
1199         { 32000U, BT_SBC_SAMPLING_FREQ_32000 },
1200         { 44100U, BT_SBC_SAMPLING_FREQ_44100 },
1201         { 48000U, BT_SBC_SAMPLING_FREQ_48000 }
1202     };
1203
1204     dbus_error_init(&e);
1205
1206     if (!dbus_message_get_args(m, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &cap, &size, DBUS_TYPE_INVALID)) {
1207         pa_log("org.bluez.MediaEndpoint.SelectConfiguration: %s", e.message);
1208         dbus_error_free(&e);
1209         goto fail;
1210     }
1211
1212     if (dbus_message_has_path(m, HFP_AG_ENDPOINT))
1213         goto done;
1214
1215     pa_assert(size == sizeof(config));
1216
1217     memset(&config, 0, sizeof(config));
1218
1219     /* Find the lowest freq that is at least as high as the requested
1220      * sampling rate */
1221     for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
1222         if (freq_table[i].rate >= y->core->default_sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
1223             config.frequency = freq_table[i].cap;
1224             break;
1225         }
1226
1227     if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
1228         for (--i; i >= 0; i--) {
1229             if (cap->frequency & freq_table[i].cap) {
1230                 config.frequency = freq_table[i].cap;
1231                 break;
1232             }
1233         }
1234
1235         if (i < 0) {
1236             pa_log("Not suitable sample rate");
1237             goto fail;
1238         }
1239     }
1240
1241     pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
1242
1243     if (y->core->default_sample_spec.channels <= 1) {
1244         if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
1245             config.channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
1246     }
1247
1248     if (y->core->default_sample_spec.channels >= 2) {
1249         if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
1250             config.channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
1251         else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
1252             config.channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
1253         else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
1254             config.channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
1255         else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
1256             config.channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
1257         } else {
1258             pa_log("No supported channel modes");
1259             goto fail;
1260         }
1261     }
1262
1263     if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
1264         config.block_length = BT_A2DP_BLOCK_LENGTH_16;
1265     else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
1266         config.block_length = BT_A2DP_BLOCK_LENGTH_12;
1267     else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
1268         config.block_length = BT_A2DP_BLOCK_LENGTH_8;
1269     else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
1270         config.block_length = BT_A2DP_BLOCK_LENGTH_4;
1271     else {
1272         pa_log_error("No supported block lengths");
1273         goto fail;
1274     }
1275
1276     if (cap->subbands & BT_A2DP_SUBBANDS_8)
1277         config.subbands = BT_A2DP_SUBBANDS_8;
1278     else if (cap->subbands & BT_A2DP_SUBBANDS_4)
1279         config.subbands = BT_A2DP_SUBBANDS_4;
1280     else {
1281         pa_log_error("No supported subbands");
1282         goto fail;
1283     }
1284
1285     if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
1286         config.allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
1287     else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
1288         config.allocation_method = BT_A2DP_ALLOCATION_SNR;
1289
1290     config.min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
1291     config.max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(config.frequency, config.channel_mode), cap->max_bitpool);
1292
1293 done:
1294     pa_assert_se(r = dbus_message_new_method_return(m));
1295
1296     pa_assert_se(dbus_message_append_args(
1297                                      r,
1298                                      DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &pconf, size,
1299                                      DBUS_TYPE_INVALID));
1300
1301     return r;
1302
1303 fail:
1304     pa_assert_se(r = (dbus_message_new_error(m, "org.bluez.MediaEndpoint.Error.InvalidArguments",
1305                                                         "Unable to select configuration")));
1306     return r;
1307 }
1308
1309 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
1310     struct pa_bluetooth_discovery *y = userdata;
1311     DBusMessage *r = NULL;
1312     DBusError e;
1313     const char *path;
1314
1315     pa_assert(y);
1316
1317     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
1318             dbus_message_get_interface(m),
1319             dbus_message_get_path(m),
1320             dbus_message_get_member(m));
1321
1322     path = dbus_message_get_path(m);
1323     dbus_error_init(&e);
1324
1325     if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT) && !pa_streq(path, HFP_AG_ENDPOINT))
1326         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1327
1328     if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1329         const char *xml = ENDPOINT_INTROSPECT_XML;
1330
1331         pa_assert_se(r = dbus_message_new_method_return(m));
1332         pa_assert_se(dbus_message_append_args(
1333                                  r,
1334                                  DBUS_TYPE_STRING, &xml,
1335                                  DBUS_TYPE_INVALID));
1336
1337     } else if (dbus_message_is_method_call(m, "org.bluez.MediaEndpoint", "SetConfiguration")) {
1338         r = endpoint_set_configuration(c, m, userdata);
1339     } else if (dbus_message_is_method_call(m, "org.bluez.MediaEndpoint", "SelectConfiguration")) {
1340         r = endpoint_select_configuration(c, m, userdata);
1341     } else if (dbus_message_is_method_call(m, "org.bluez.MediaEndpoint", "ClearConfiguration"))
1342         r = endpoint_clear_configuration(c, m, userdata);
1343     else
1344         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1345
1346     if (r) {
1347         pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1348         dbus_message_unref(r);
1349     }
1350
1351     return DBUS_HANDLER_RESULT_HANDLED;
1352 }
1353
1354 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
1355     DBusError err;
1356     pa_bluetooth_discovery *y;
1357     static const DBusObjectPathVTable vtable_endpoint = {
1358         .message_function = endpoint_handler,
1359     };
1360
1361     pa_assert(c);
1362
1363     dbus_error_init(&err);
1364
1365     if ((y = pa_shared_get(c, "bluetooth-discovery")))
1366         return pa_bluetooth_discovery_ref(y);
1367
1368     y = pa_xnew0(pa_bluetooth_discovery, 1);
1369     PA_REFCNT_INIT(y);
1370     y->core = c;
1371     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1372     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
1373     pa_hook_init(&y->hook, y);
1374     pa_shared_set(c, "bluetooth-discovery", y);
1375
1376     if (setup_dbus(y) < 0)
1377         goto fail;
1378
1379     /* dynamic detection of bluetooth audio devices */
1380     if (!dbus_connection_add_filter(pa_dbus_connection_get(y->connection), filter_cb, y, NULL)) {
1381         pa_log_error("Failed to add filter function");
1382         goto fail;
1383     }
1384     y->filter_added = TRUE;
1385
1386     if (pa_dbus_add_matches(
1387                 pa_dbus_connection_get(y->connection), &err,
1388                 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.bluez'",
1389                 "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
1390                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
1391                 "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
1392                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
1393                 "type='signal',sender='org.bluez',interface='org.bluez.Device',member='DisconnectRequested'",
1394                 "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
1395                 "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
1396                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'",
1397                 "type='signal',sender='org.bluez',interface='org.bluez.AudioSource',member='PropertyChanged'",
1398                 "type='signal',sender='org.bluez',interface='org.bluez.HandsfreeGateway',member='PropertyChanged'",
1399                 NULL) < 0) {
1400         pa_log("Failed to add D-Bus matches: %s", err.message);
1401         goto fail;
1402     }
1403
1404 #ifdef DBUS_TYPE_UNIX_FD
1405     pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), HFP_AG_ENDPOINT, &vtable_endpoint, y));
1406     pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT, &vtable_endpoint, y));
1407     pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT, &vtable_endpoint, y));
1408 #endif
1409
1410     list_adapters(y);
1411
1412     return y;
1413
1414 fail:
1415
1416     if (y)
1417         pa_bluetooth_discovery_unref(y);
1418
1419     dbus_error_free(&err);
1420
1421     return NULL;
1422 }
1423
1424 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
1425     pa_assert(y);
1426     pa_assert(PA_REFCNT_VALUE(y) > 0);
1427
1428     PA_REFCNT_INC(y);
1429
1430     return y;
1431 }
1432
1433 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
1434     pa_assert(y);
1435     pa_assert(PA_REFCNT_VALUE(y) > 0);
1436
1437     if (PA_REFCNT_DEC(y) > 0)
1438         return;
1439
1440     pa_dbus_free_pending_list(&y->pending);
1441
1442     if (y->devices) {
1443         remove_all_devices(y);
1444         pa_hashmap_free(y->devices, NULL, NULL);
1445     }
1446
1447     if (y->connection) {
1448 #ifdef DBUS_TYPE_UNIX_FD
1449         dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), HFP_AG_ENDPOINT);
1450         dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
1451         dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
1452 #endif
1453         pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
1454                                "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.bluez'",
1455                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
1456                                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
1457                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
1458                                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
1459                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
1460                                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='DisconnectRequested'",
1461                                "type='signal',sender='org.bluez',interface='org.bluez.Audio',member='PropertyChanged'",
1462                                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
1463                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'",
1464                                "type='signal',sender='org.bluez',interface='org.bluez.AudioSource',member='PropertyChanged'",
1465                                "type='signal',sender='org.bluez',interface='org.bluez.HandsfreeGateway',member='PropertyChanged'",
1466                                NULL);
1467
1468         if (y->filter_added)
1469             dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1470
1471         dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1472
1473         pa_dbus_connection_unref(y->connection);
1474     }
1475
1476     pa_hook_done(&y->hook);
1477
1478     if (y->core)
1479         pa_shared_remove(y->core, "bluetooth-discovery");
1480
1481     pa_xfree(y);
1482 }
1483
1484 void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
1485     pa_assert(y);
1486     pa_assert(PA_REFCNT_VALUE(y) > 0);
1487
1488     pa_dbus_sync_pending_list(&y->pending);
1489 }
1490
1491 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y) {
1492     pa_assert(y);
1493     pa_assert(PA_REFCNT_VALUE(y) > 0);
1494
1495     return &y->hook;
1496 }
1497
1498 const char*pa_bluetooth_get_form_factor(uint32_t class) {
1499     unsigned i;
1500     const char *r;
1501
1502     static const char * const table[] = {
1503         [1] = "headset",
1504         [2] = "hands-free",
1505         [4] = "microphone",
1506         [5] = "speaker",
1507         [6] = "headphone",
1508         [7] = "portable",
1509         [8] = "car",
1510         [10] = "hifi"
1511     };
1512
1513     if (((class >> 8) & 31) != 4)
1514         return NULL;
1515
1516     if ((i = (class >> 2) & 63) > PA_ELEMENTSOF(table))
1517         r =  NULL;
1518     else
1519         r = table[i];
1520
1521     if (!r)
1522         pa_log_debug("Unknown Bluetooth minor device class %u", i);
1523
1524     return r;
1525 }
1526
1527 char *pa_bluetooth_cleanup_name(const char *name) {
1528     char *t, *s, *d;
1529     pa_bool_t space = FALSE;
1530
1531     pa_assert(name);
1532
1533     while ((*name >= 1 && *name <= 32) || *name >= 127)
1534         name++;
1535
1536     t = pa_xstrdup(name);
1537
1538     for (s = d = t; *s; s++) {
1539
1540         if (*s <= 32 || *s >= 127 || *s == '_') {
1541             space = TRUE;
1542             continue;
1543         }
1544
1545         if (space) {
1546             *(d++) = ' ';
1547             space = FALSE;
1548         }
1549
1550         *(d++) = *s;
1551     }
1552
1553     *d = 0;
1554
1555     return t;
1556 }
1557
1558 pa_bool_t pa_bluetooth_uuid_has(pa_bluetooth_uuid *uuids, const char *uuid) {
1559     pa_assert(uuid);
1560
1561     while (uuids) {
1562         if (strcasecmp(uuids->uuid, uuid) == 0)
1563             return TRUE;
1564
1565         uuids = uuids->next;
1566     }
1567
1568     return FALSE;
1569 }