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bluetooth: Monitor D-Bus signals

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This commit is contained in:
João Paulo Rechi Vita 2014-09-10 11:48:24 +02:00 • committed by Tanu Kaskinen
parent eed6d95f49
commit 98d3d85705
1 changed files with 45 additions and 4 deletions
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45
src/modules/bluetooth/backend-ofono.c
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@ -30,6 +30,7 @@
#define OFONO_SERVICE "org.ofono"
#define HF_AUDIO_AGENT_INTERFACE OFONO_SERVICE ".HandsfreeAudioAgent"
#define HF_AUDIO_MANAGER_INTERFACE OFONO_SERVICE ".HandsfreeAudioManager"
#define HF_AUDIO_AGENT_PATH "/HandsfreeAudioAgent"
@ -56,8 +57,16 @@ struct pa_bluetooth_backend {
pa_core *core;
pa_bluetooth_discovery *discovery;
pa_dbus_connection *connection;
pa_hashmap *cards;
};
static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *data) {
pa_assert(bus);
pa_assert(m);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
static DBusMessage *hf_audio_agent_release(DBusConnection *c, DBusMessage *m, void *data) {
DBusMessage *r = dbus_message_new_error(m, "org.ofono.Error.NotImplemented", "Operation is not implemented");
return r;
@ -117,12 +126,35 @@ pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discover
backend = pa_xnew0(pa_bluetooth_backend, 1);
backend->core = c;
backend->discovery = y;
backend->cards = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
dbus_error_init(&err);
if (!(backend->connection = pa_dbus_bus_get(c, DBUS_BUS_SYSTEM, &err))) {
pa_log("Failed to get D-Bus connection: %s", err.message);
dbus_error_free(&err);
pa_xfree(backend);
return NULL;
}
/* dynamic detection of handsfree audio cards */
if (!dbus_connection_add_filter(pa_dbus_connection_get(backend->connection), filter_cb, backend, NULL)) {
pa_log_error("Failed to add filter function");
pa_dbus_connection_unref(backend->connection);
pa_xfree(backend);
return NULL;
}
if (pa_dbus_add_matches(pa_dbus_connection_get(backend->connection), &err,
"type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
"arg0='" OFONO_SERVICE "'",
"type='signal',sender='" OFONO_SERVICE "',interface='" HF_AUDIO_MANAGER_INTERFACE "',member='CardAdded'",
"type='signal',sender='" OFONO_SERVICE "',interface='" HF_AUDIO_MANAGER_INTERFACE "',member='CardRemoved'",
NULL) < 0) {
pa_log("Failed to add oFono D-Bus matches: %s", err.message);
dbus_connection_remove_filter(pa_dbus_connection_get(backend->connection), filter_cb, backend);
pa_dbus_connection_unref(backend->connection);
pa_xfree(backend);
return NULL;
}
@ -135,11 +167,20 @@ pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discover
void pa_bluetooth_backend_free(pa_bluetooth_backend *backend) {
pa_assert(backend);
if (backend->connection) {
dbus_connection_unregister_object_path(pa_dbus_connection_get(backend->connection), HF_AUDIO_AGENT_PATH);
pa_dbus_remove_matches(pa_dbus_connection_get(backend->connection),
"type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
"arg0='" OFONO_SERVICE "'",
"type='signal',sender='" OFONO_SERVICE "',interface='" HF_AUDIO_MANAGER_INTERFACE "',member='CardAdded'",
"type='signal',sender='" OFONO_SERVICE "',interface='" HF_AUDIO_MANAGER_INTERFACE "',member='CardRemoved'",
NULL);
dbus_connection_remove_filter(pa_dbus_connection_get(backend->connection), filter_cb, backend);
pa_dbus_connection_unref(backend->connection);
}
pa_hashmap_free(backend->cards);
pa_xfree(backend);
}