[pulseaudio-commits] [SCM] PulseAudio Sound Server branch, lennartsbtfixes, updated. v0.9.13-429-g4a75002

Lennart Poettering gitmailer-noreply at 0pointer.de
Thu Jan 29 11:30:51 PST 2009


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generated because of a push to the "PulseAudio Sound Server" repository.

The lennartsbtfixes branch has been updated
      from  a71fa021a3ca12a6f8eff9b96e073403a0c156c0 (commit)

- Log -----------------------------------------------------------------
4a75002... add missing files
-----------------------------------------------------------------------

Summary of changes:
 src/modules/bluetooth/bluetooth-util.c |  805 ++++++++++++++++++++++++++++++++
 src/modules/bluetooth/bluetooth-util.h |   77 +++
 2 files changed, 882 insertions(+), 0 deletions(-)
 create mode 100644 src/modules/bluetooth/bluetooth-util.c
 create mode 100644 src/modules/bluetooth/bluetooth-util.h

-----------------------------------------------------------------------

commit 4a75002ebe385302c513b79fb98f59832d73c8ea
Author: Lennart Poettering <lennart at poettering.net>
Date:   Thu Jan 29 20:30:42 2009 +0100

    add missing files

diff --git a/src/modules/bluetooth/bluetooth-util.c b/src/modules/bluetooth/bluetooth-util.c
new file mode 100644
index 0000000..019b97e
--- /dev/null
+++ b/src/modules/bluetooth/bluetooth-util.c
@@ -0,0 +1,805 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2008 Joao Paulo Rechi Vita
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulsecore/core-util.h>
+#include <modules/dbus-util.h>
+
+#include "bluetooth-util.h"
+
+enum mode {
+    MODE_FIND,
+    MODE_GET,
+    MODE_DISCOVER
+};
+
+struct pa_bluetooth_discovery {
+    DBusConnection *connection;
+    PA_LLIST_HEAD(pa_dbus_pending, pending);
+
+    enum mode mode;
+
+    /* If mode == MODE_FIND look for a specific device by its address.
+       If mode == MODE_GET look for a specific device by its path. */
+    const char *looking_for;
+    pa_bluetooth_device *found_device;
+
+    /* If looking_for is NULL we do long-time discovery */
+    pa_hashmap *devices;
+    pa_bluetooth_device_callback_t callback;
+    struct userdata *userdata;
+};
+
+static pa_bluetooth_uuid *uuid_new(const char *uuid) {
+    pa_bluetooth_uuid *u;
+
+    u = pa_xnew(pa_bluetooth_uuid, 1);
+    u->uuid = pa_xstrdup(uuid);
+    PA_LLIST_INIT(pa_bluetooth_uuid, u);
+
+    return u;
+}
+
+static void uuid_free(pa_bluetooth_uuid *u) {
+    pa_assert(u);
+
+    pa_xfree(u->uuid);
+    pa_xfree(u);
+}
+
+static pa_bluetooth_device* device_new(const char *path) {
+    pa_bluetooth_device *d;
+
+    d = pa_xnew(pa_bluetooth_device, 1);
+
+    d->device_info_valid = d->audio_sink_info_valid = d->headset_info_valid = 0;
+
+    d->data = NULL;
+
+    d->name = NULL;
+    d->path = pa_xstrdup(path);
+    d->paired = -1;
+    d->alias = NULL;
+    d->device_connected = -1;
+    PA_LLIST_HEAD_INIT(pa_bluetooth_uuid, d->uuids);
+    d->address = NULL;
+    d->class = -1;
+    d->trusted = -1;
+
+    d->audio_sink_connected = -1;
+
+    d->headset_connected = -1;
+
+    return d;
+}
+
+void pa_bluetooth_device_free(pa_bluetooth_device *d) {
+    pa_bluetooth_uuid *u;
+
+    pa_assert(d);
+
+    while ((u = d->uuids)) {
+        PA_LLIST_REMOVE(pa_bluetooth_uuid, d->uuids, u);
+        uuid_free(u);
+    }
+
+    pa_xfree(d->name);
+    pa_xfree(d->path);
+    pa_xfree(d->alias);
+    pa_xfree(d->address);
+    pa_xfree(d);
+}
+
+static pa_bool_t device_is_loaded(pa_bluetooth_device *d) {
+    pa_assert(d);
+
+    return d->device_info_valid && d->audio_sink_info_valid && d->headset_info_valid;
+}
+
+static pa_bool_t device_is_audio(pa_bluetooth_device *d) {
+    pa_assert(d);
+
+    pa_assert(d->device_info_valid);
+    pa_assert(d->audio_sink_info_valid);
+    pa_assert(d->headset_info_valid);
+
+    return d->device_info_valid > 0 &&
+        (d->audio_sink_info_valid > 0 || d->headset_info_valid > 0);
+}
+
+static int parse_device_property(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessageIter *i) {
+    const char *key;
+    DBusMessageIter variant_i;
+
+    pa_assert(y);
+    pa_assert(d);
+    pa_assert(i);
+
+    if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
+        pa_log("Property name not a string.");
+        return -1;
+    }
+
+    dbus_message_iter_get_basic(i, &key);
+
+    if (!dbus_message_iter_next(i))  {
+        pa_log("Property value missing");
+        return -1;
+    }
+
+    if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
+        pa_log("Property value not a variant.");
+        return -1;
+    }
+
+    dbus_message_iter_recurse(i, &variant_i);
+
+    pa_log_debug("Parsing property org.bluez.Device.%s", key);
+
+    switch (dbus_message_iter_get_arg_type(&variant_i)) {
+
+        case DBUS_TYPE_STRING: {
+
+            const char *value;
+            dbus_message_iter_get_basic(&variant_i, &value);
+
+            if (pa_streq(key, "Name")) {
+                pa_xfree(d->name);
+                d->name = pa_xstrdup(value);
+            } else if (pa_streq(key, "Alias")) {
+                pa_xfree(d->alias);
+                d->alias = pa_xstrdup(value);
+            } else if (pa_streq(key, "Address")) {
+                pa_xfree(d->address);
+                d->address = pa_xstrdup(value);
+            }
+
+            pa_log_debug("Value %s", value);
+
+            break;
+        }
+
+        case DBUS_TYPE_BOOLEAN: {
+
+            dbus_bool_t value;
+            dbus_message_iter_get_basic(&variant_i, &value);
+
+            if (pa_streq(key, "Paired"))
+                d->paired = !!value;
+            else if (pa_streq(key, "Connected"))
+                d->device_connected = !!value;
+            else if (pa_streq(key, "Trusted"))
+                d->trusted = !!value;
+
+            pa_log_debug("Value %s", pa_yes_no(value));
+
+            break;
+        }
+
+        case DBUS_TYPE_UINT32: {
+
+            uint32_t value;
+            dbus_message_iter_get_basic(&variant_i, &value);
+
+            if (pa_streq(key, "Class"))
+                d->class = (int) value;
+
+            pa_log_debug("Value %u", (unsigned) value);
+
+            break;
+        }
+
+        case DBUS_TYPE_ARRAY: {
+
+            DBusMessageIter ai;
+            dbus_message_iter_recurse(&variant_i, &ai);
+
+            if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING &&
+                pa_streq(key, "UUIDs")) {
+
+                while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
+                    pa_bluetooth_uuid *node;
+                    const char *value;
+
+                    dbus_message_iter_get_basic(&ai, &value);
+                    node = uuid_new(value);
+                    PA_LLIST_PREPEND(pa_bluetooth_uuid, d->uuids, node);
+
+                    if (!dbus_message_iter_next(&ai))
+                        break;
+                }
+            }
+
+            break;
+        }
+    }
+
+    return 0;
+}
+
+static int parse_audio_property(pa_bluetooth_discovery *u, int *connected, DBusMessageIter *i) {
+    const char *key;
+    DBusMessageIter variant_i;
+
+    pa_assert(u);
+    pa_assert(connected);
+    pa_assert(i);
+
+    if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
+        pa_log("Property name not a string.");
+        return -1;
+    }
+
+    dbus_message_iter_get_basic(i, &key);
+
+    if (!dbus_message_iter_next(i))  {
+        pa_log("Property value missing");
+        return -1;
+    }
+
+    if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
+        pa_log("Property value not a variant.");
+        return -1;
+    }
+
+    dbus_message_iter_recurse(i, &variant_i);
+
+    pa_log_debug("Parsing property org.bluez.{AudioSink|Headset}.%s", key);
+
+    switch (dbus_message_iter_get_arg_type(&variant_i)) {
+
+        case DBUS_TYPE_BOOLEAN: {
+
+            dbus_bool_t value;
+            dbus_message_iter_get_basic(&variant_i, &value);
+
+            if (pa_streq(key, "Connected"))
+                *connected = !!value;
+
+            pa_log_debug("Value %s", pa_yes_no(value));
+
+            break;
+        }
+    }
+
+    return 0;
+}
+
+
+static void run_callback(pa_bluetooth_discovery *y, pa_bluetooth_device *d, pa_bool_t good) {
+    pa_assert(y);
+    pa_assert(d);
+
+    if (y->mode != MODE_DISCOVER)
+        return;
+
+    if (!device_is_loaded(d))
+        return;
+
+    if (!device_is_audio(d))
+        return;
+
+    y->callback(y->userdata, d, good);
+
+}
+
+static void get_properties_reply(DBusPendingCall *pending, void *userdata) {
+    DBusMessage *r;
+    DBusMessageIter arg_i, element_i;
+    pa_dbus_pending *p;
+    pa_bluetooth_device *d;
+    pa_bluetooth_discovery *y;
+    int valid;
+
+    pa_assert_se(p = userdata);
+    pa_assert_se(y = p->context_data);
+    pa_assert_se(r = dbus_pending_call_steal_reply(pending));
+
+/*     pa_log_debug("Got %s.GetProperties response for %s", */
+/*                  dbus_message_get_interface(p->message), */
+/*                  dbus_message_get_path(p->message)); */
+
+    d = p->call_data;
+
+    valid = dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR ? -1 : 1;
+
+    if (dbus_message_is_method_call(p->message, "org.bluez.Device", "GetProperties"))
+        d->device_info_valid = valid;
+    else if (dbus_message_is_method_call(p->message, "org.bluez.Headset", "GetProperties"))
+        d->headset_info_valid = valid;
+    else if (dbus_message_is_method_call(p->message, "org.bluez.AudioSink", "GetProperties"))
+        d->audio_sink_info_valid = valid;
+
+    if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
+
+        if (!dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD))
+            pa_log("Error from GetProperties reply: %s", dbus_message_get_error_name(r));
+
+        goto finish;
+    }
+
+    if (!dbus_message_iter_init(r, &arg_i)) {
+        pa_log("GetProperties reply has no arguments.");
+        goto finish;
+    }
+
+    if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
+        pa_log("GetProperties argument is not an array.");
+        goto finish;
+    }
+
+    dbus_message_iter_recurse(&arg_i, &element_i);
+    while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
+
+        if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
+            DBusMessageIter dict_i;
+
+            dbus_message_iter_recurse(&element_i, &dict_i);
+
+            if (dbus_message_has_interface(p->message, "org.bluez.Device")) {
+                if (parse_device_property(y, d, &dict_i) < 0)
+                    goto finish;
+
+            } else if (dbus_message_has_interface(p->message, "org.bluez.Headset")) {
+                if (parse_audio_property(y, &d->headset_connected, &dict_i) < 0)
+                    goto finish;
+
+            }  else if (dbus_message_has_interface(p->message, "org.bluez.AudioSink")) {
+                if (parse_audio_property(y, &d->audio_sink_connected, &dict_i) < 0)
+                    goto finish;
+            }
+        }
+
+        if (!dbus_message_iter_next(&element_i))
+            break;
+    }
+
+finish:
+    run_callback(y, d, TRUE);
+
+    dbus_message_unref(r);
+
+    PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
+    pa_dbus_pending_free(p);
+}
+
+static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, pa_bluetooth_device *d, DBusMessage *m, DBusPendingCallNotifyFunction func) {
+    pa_dbus_pending *p;
+    DBusPendingCall *call;
+
+    pa_assert(y);
+    pa_assert(m);
+
+    pa_assert_se(dbus_connection_send_with_reply(y->connection, m, &call, -1));
+
+    p = pa_dbus_pending_new(m, call, y, d);
+    PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
+    dbus_pending_call_set_notify(call, func, p, NULL);
+
+    return p;
+}
+
+static void found_device(pa_bluetooth_discovery *y, const char* path) {
+    DBusMessage *m;
+    pa_bluetooth_device *d;
+
+    pa_assert(y);
+    pa_assert(path);
+
+    d = device_new(path);
+
+    if (y->mode == MODE_DISCOVER) {
+        pa_assert(y->devices);
+        pa_hashmap_put(y->devices, d->path, d);
+    } else {
+        pa_assert(!y->found_device);
+        y->found_device = d;
+    }
+
+    pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Device", "GetProperties"));
+    send_and_add_to_pending(y, d, m, get_properties_reply);
+
+    pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Headset", "GetProperties"));
+    send_and_add_to_pending(y, d, m, get_properties_reply);
+
+    pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.AudioSink", "GetProperties"));
+    send_and_add_to_pending(y, d, m, get_properties_reply);
+}
+
+static void list_devices_reply(DBusPendingCall *pending, void *userdata) {
+    DBusError e;
+    DBusMessage *r;
+    char **paths = NULL;
+    int num = -1;
+    pa_dbus_pending *p;
+    pa_bluetooth_discovery *y;
+
+    pa_assert(pending);
+
+    dbus_error_init(&e);
+
+    pa_assert_se(p = userdata);
+    pa_assert_se(y = p->context_data);
+    pa_assert_se(r = dbus_pending_call_steal_reply(pending));
+
+    if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
+        pa_log("Error from ListDevices reply: %s", dbus_message_get_error_name(r));
+        goto end;
+    }
+
+    if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
+        pa_log("org.bluez.Adapter.ListDevices returned an error: '%s'\n", e.message);
+        dbus_error_free(&e);
+    } else {
+        int i;
+
+        for (i = 0; i < num; ++i)
+            found_device(y, paths[i]);
+    }
+
+end:
+    if (paths)
+        dbus_free_string_array (paths);
+
+    dbus_message_unref(r);
+
+    PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
+    pa_dbus_pending_free(p);
+}
+
+static void find_device_reply(DBusPendingCall *pending, void *userdata) {
+    DBusError e;
+    DBusMessage *r;
+    char *path = NULL;
+    pa_dbus_pending *p;
+    pa_bluetooth_discovery *y;
+
+    pa_assert(pending);
+
+    dbus_error_init(&e);
+
+    pa_assert_se(p = userdata);
+    pa_assert_se(y = p->context_data);
+    pa_assert_se(r = dbus_pending_call_steal_reply(pending));
+
+    if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
+        pa_log("Error from FindDevice reply: %s", dbus_message_get_error_name(r));
+        goto end;
+    }
+
+    if (!dbus_message_get_args(r, &e, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
+        pa_log("org.bluez.Adapter.FindDevice returned an error: '%s'\n", e.message);
+        dbus_error_free(&e);
+    } else
+        found_device(y, path);
+
+end:
+    dbus_message_unref(r);
+
+    PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
+    pa_dbus_pending_free(p);
+}
+
+static void found_adapter(pa_bluetooth_discovery *y, const char *path) {
+    DBusMessage *m;
+
+    if (y->mode == MODE_FIND) {
+        pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "FindDevice"));
+
+        pa_assert_se(dbus_message_append_args(m,
+                                              DBUS_TYPE_STRING, &y->looking_for,
+                                              DBUS_TYPE_INVALID));
+
+        send_and_add_to_pending(y, NULL, m, find_device_reply);
+
+    } else {
+        pa_assert(y->mode == MODE_DISCOVER);
+
+        pa_assert_se(m = dbus_message_new_method_call("org.bluez", path, "org.bluez.Adapter", "ListDevices"));
+        send_and_add_to_pending(y, NULL, m, list_devices_reply);
+    }
+}
+
+static void list_adapters_reply(DBusPendingCall *pending, void *userdata) {
+    DBusError e;
+    DBusMessage *r;
+    char **paths = NULL;
+    int num = -1;
+    pa_dbus_pending *p;
+    pa_bluetooth_discovery *y;
+
+    pa_assert(pending);
+
+    dbus_error_init(&e);
+
+    pa_assert_se(p = userdata);
+    pa_assert_se(y = p->context_data);
+    pa_assert_se(r = dbus_pending_call_steal_reply(pending));
+
+    if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
+        pa_log("Error from ListAdapters reply: %s", dbus_message_get_error_name(r));
+        goto end;
+    }
+
+    if (!dbus_message_get_args(r, &e, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &num, DBUS_TYPE_INVALID)) {
+        pa_log("org.bluez.Manager.ListAdapters returned an error: %s", e.message);
+        dbus_error_free(&e);
+    } else {
+        int i;
+
+        for (i = 0; i < num; ++i)
+            found_adapter(y, paths[i]);
+    }
+
+end:
+    if (paths)
+        dbus_free_string_array (paths);
+
+    dbus_message_unref(r);
+
+    PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
+    pa_dbus_pending_free(p);
+}
+
+static void list_adapters(pa_bluetooth_discovery *y) {
+    DBusMessage *m;
+    pa_assert(y);
+
+    pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.bluez.Manager", "ListAdapters"));
+    send_and_add_to_pending(y, NULL, m, list_adapters_reply);
+}
+
+static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
+    DBusError err;
+    pa_bluetooth_discovery *y;
+
+    pa_assert(bus);
+    pa_assert(m);
+
+    pa_assert_se(y = userdata);
+
+    dbus_error_init(&err);
+
+    pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
+            dbus_message_get_interface(m),
+            dbus_message_get_path(m),
+            dbus_message_get_member(m));
+
+    if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceRemoved")) {
+        const char *path;
+        pa_bluetooth_device *d;
+
+        if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
+            pa_log("Failed to parse org.bluez.Adapter.DeviceRemoved: %s", err.message);
+            goto fail;
+        }
+
+        pa_log_debug("Device %s removed", path);
+
+        if ((d = pa_hashmap_remove(y->devices, path))) {
+
+            pa_assert_se(y->mode == MODE_DISCOVER);
+            run_callback(y, d, FALSE);
+
+            pa_bluetooth_device_free(d);
+        }
+
+        return DBUS_HANDLER_RESULT_HANDLED;
+
+    } else if (dbus_message_is_signal(m, "org.bluez.Adapter", "DeviceCreated")) {
+        const char *path;
+
+        if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
+            pa_log("Failed to parse org.bluez.Adapter.DeviceCreated: %s", err.message);
+            goto fail;
+        }
+
+        pa_log_debug("Device %s created", path);
+
+        found_device(y, path);
+        return DBUS_HANDLER_RESULT_HANDLED;
+
+    } else if (dbus_message_is_signal(m, "org.bluez.Manager", "AdapterAdded")) {
+        const char *path;
+
+        if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
+            pa_log("Failed to parse org.bluez.Manager.AdapterAdded: %s", err.message);
+            goto fail;
+        }
+
+        pa_log_debug("Adapter %s created", path);
+
+        found_adapter(y, path);
+        return DBUS_HANDLER_RESULT_HANDLED;
+
+    } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged") ||
+               dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged") ||
+               dbus_message_is_signal(m, "org.bluez.Device", "PropertyChanged")) {
+
+        pa_bluetooth_device *d;
+
+        if ((d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
+            DBusMessageIter arg_i;
+
+            if (!dbus_message_iter_init(m, &arg_i)) {
+                pa_log("Failed to parse PropertyChanged: %s", err.message);
+                goto fail;
+            }
+
+            if (dbus_message_has_interface(m, "org.bluez.Device")) {
+                if (parse_device_property(y, d, &arg_i) < 0)
+                    goto fail;
+
+            } else if (dbus_message_has_interface(m, "org.bluez.Headset")) {
+                if (parse_audio_property(y, &d->headset_connected, &arg_i) < 0)
+                    goto fail;
+
+            }  else if (dbus_message_has_interface(m, "org.bluez.AudioSink")) {
+                if (parse_audio_property(y, &d->audio_sink_connected, &arg_i) < 0)
+                    goto fail;
+            }
+
+            pa_assert_se(y->mode == MODE_DISCOVER);
+            run_callback(y, d, TRUE);
+        }
+
+        return DBUS_HANDLER_RESULT_HANDLED;
+    }
+
+fail:
+    dbus_error_free(&err);
+
+    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+pa_bluetooth_device* pa_bluetooth_find_device(DBusConnection *c, const char* address) {
+    pa_bluetooth_discovery y;
+
+    memset(&y, 0, sizeof(y));
+    y.mode = MODE_FIND;
+    y.looking_for = address;
+    y.connection = c;
+    PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
+
+    list_adapters(&y);
+
+    pa_dbus_sync_pending_list(&y.pending);
+    pa_assert(!y.pending);
+
+    if (y.found_device) {
+        pa_assert(device_is_loaded(y.found_device));
+
+        if (!device_is_audio(y.found_device)) {
+            pa_bluetooth_device_free(y.found_device);
+            return NULL;
+        }
+    }
+
+    return y.found_device;
+}
+
+pa_bluetooth_device* pa_bluetooth_get_device(DBusConnection *c, const char* path) {
+    pa_bluetooth_discovery y;
+
+    memset(&y, 0, sizeof(y));
+    y.mode = MODE_GET;
+    y.connection = c;
+    PA_LLIST_HEAD_INIT(pa_dbus_pending, y.pending);
+
+    found_device(&y, path);
+
+    pa_dbus_sync_pending_list(&y.pending);
+    pa_assert(!y.pending);
+
+    if (y.found_device) {
+        pa_assert(device_is_loaded(y.found_device));
+
+        if (!device_is_audio(y.found_device)) {
+            pa_bluetooth_device_free(y.found_device);
+            return NULL;
+        }
+    }
+
+    return y.found_device;
+}
+
+pa_bluetooth_discovery* pa_bluetooth_discovery_new(DBusConnection *c, pa_bluetooth_device_callback_t cb, struct userdata *u) {
+    DBusError err;
+    pa_bluetooth_discovery *y;
+
+    pa_assert(c);
+    pa_assert(cb);
+
+    dbus_error_init(&err);
+
+    y = pa_xnew0(pa_bluetooth_discovery, 1);
+    y->mode = MODE_DISCOVER;
+    y->connection = c;
+    y->callback = cb;
+    y->userdata = u;
+    y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+    PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
+
+    /* dynamic detection of bluetooth audio devices */
+    if (!dbus_connection_add_filter(c, filter_cb, y, NULL)) {
+        pa_log_error("Failed to add filter function");
+        goto fail;
+    }
+
+    if (pa_dbus_add_matches(
+                c, &err,
+                "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
+                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
+                "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
+                "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL) < 0) {
+        pa_log("Failed to add D-Bus matches: %s", err.message);
+        goto fail;
+    }
+
+    list_adapters(y);
+
+    return y;
+
+fail:
+    dbus_error_free(&err);
+    return NULL;
+}
+
+void pa_bluetooth_discovery_free(pa_bluetooth_discovery *y) {
+    pa_bluetooth_device *d;
+
+    pa_assert(y);
+
+    pa_dbus_free_pending_list(&y->pending);
+
+    if (y->devices) {
+        while ((d = pa_hashmap_steal_first(y->devices))) {
+            run_callback(y, d, FALSE);
+            pa_bluetooth_device_free(d);
+        }
+
+        pa_hashmap_free(y->devices, NULL, NULL);
+    }
+
+    if (y->connection) {
+        pa_dbus_remove_matches(y->connection,
+                               "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterAdded'",
+                               "type='signal',sender='org.bluez',interface='org.bluez.Manager',member='AdapterRemoved'",
+                               "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceRemoved'",
+                               "type='signal',sender='org.bluez',interface='org.bluez.Adapter',member='DeviceCreated'",
+                               "type='signal',sender='org.bluez',interface='org.bluez.Device',member='PropertyChanged'",
+                               "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
+                               "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'", NULL);
+
+        dbus_connection_remove_filter(y->connection, filter_cb, y);
+    }
+}
+
+void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *y) {
+    pa_assert(y);
+
+    pa_dbus_sync_pending_list(&y->pending);
+}
diff --git a/src/modules/bluetooth/bluetooth-util.h b/src/modules/bluetooth/bluetooth-util.h
new file mode 100644
index 0000000..ea6687a
--- /dev/null
+++ b/src/modules/bluetooth/bluetooth-util.h
@@ -0,0 +1,77 @@
+#ifndef foobluetoothutilhfoo
+#define foobluetoothutilhfoo
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2008 Joao Paulo Rechi Vita
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#include <dbus/dbus.h>
+
+#include <pulsecore/llist.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/core-util.h>
+
+typedef struct pa_bluetooth_uuid pa_bluetooth_uuid;
+typedef struct pa_bluetooth_device pa_bluetooth_device;
+typedef struct pa_bluetooth_discovery pa_bluetooth_discovery;
+
+struct userdata;
+
+struct pa_bluetooth_uuid {
+    char *uuid;
+    PA_LLIST_FIELDS(pa_bluetooth_uuid);
+};
+
+struct pa_bluetooth_device {
+    void *data; /* arbitrary information for the one owning the discovery object */
+
+    int device_info_valid;      /* 0: no results yet; 1: good results; -1: bad results ... */
+    int audio_sink_info_valid;  /* ... same here ... */
+    int headset_info_valid;     /* ... and here */
+
+    /* Device information */
+    char *name;
+    char *path;
+    int paired;
+    char *alias;
+    int device_connected;
+    PA_LLIST_HEAD(pa_bluetooth_uuid, uuids);
+    char *address;
+    int class;
+    int trusted;
+
+    /* AudioSink information */
+    int audio_sink_connected;
+
+    /* Headset information */
+    int headset_connected;
+};
+
+void pa_bluetooth_device_free(pa_bluetooth_device *d);
+
+pa_bluetooth_device* pa_bluetooth_get_device(DBusConnection *c, const char* path);
+pa_bluetooth_device* pa_bluetooth_find_device(DBusConnection *c, const char* address);
+
+typedef void (*pa_bluetooth_device_callback_t)(struct userdata *u, pa_bluetooth_device *d, pa_bool_t good);
+pa_bluetooth_discovery* pa_bluetooth_discovery_new(DBusConnection *c, pa_bluetooth_device_callback_t cb, struct userdata *u);
+void pa_bluetooth_discovery_free(pa_bluetooth_discovery *d);
+void pa_bluetooth_discovery_sync(pa_bluetooth_discovery *d);
+
+#endif

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