mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-03 09:01:50 -05:00
Adding module-bt-discover
This commit is contained in:
João Paulo Rechi Vita
Lennart Poettering
parent
2ab4bb76b2
commit
8b511f5598
1 changed files with 461 additions and 0 deletions
461
src/modules/module-bt-discover.c
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461
src/modules/module-bt-discover.c
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@ -0,0 +1,461 @@
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/* TODO LIST
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* listen to signals AdapterAdded, AdapterRemoved, DeviceCreated and DeviceRemoved
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* listen to org.freedesktop.DBus.NameOwnerChanged, to properly handle hcid activity
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*/
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/***
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This file is part of PulseAudio.
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Copyright 2008 Joao Paulo Rechi Vita
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/module.h>
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#include <pulsecore/modargs.h>
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#include "dbus-util.h"
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/* TODO: Create symdef file for static linking
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* #include "module-bt-proximity-symdef.h" */
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PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
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PA_MODULE_DESCRIPTION("Detect available bluetooth audio devices and load bluetooth audio drivers");
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PA_MODULE_VERSION(PACKAGE_VERSION);
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PA_MODULE_USAGE("");
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#define AUDIO_DEVICE_INTERFACE "org.bluez.audio.Device"
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#define GENERIC_AUDIO_UUID "00001203-0000-1000-8000-00805F9B34FB"
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#define HSP_HS_UUID "00001108-0000-1000-8000-00805F9B34FB"
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#define HSP_AG_UUID "00001112-0000-1000-8000-00805F9B34FB"
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#define HFP_HS_UUID "0000111E-0000-1000-8000-00805F9B34FB"
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#define HFP_AG_UUID "0000111F-0000-1000-8000-00805F9B34FB"
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#define ADVANCED_AUDIO_UUID "0000110D-0000-1000-8000-00805F9B34FB"
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#define A2DP_SOURCE_UUID "0000110A-0000-1000-8000-00805F9B34FB"
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#define A2DP_SINK_UUID "0000110B-0000-1000-8000-00805F9B34FB"
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#define AVRCP_REMOTE_UUID "0000110E-0000-1000-8000-00805F9B34FB"
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#define AVRCP_TARGET_UUID "0000110C-0000-1000-8000-00805F9B34FB"
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#define VERBOSE 1
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typedef struct adapter adapter_t;
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typedef struct device device_t;
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typedef struct uuid uuid_t;
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struct uuid {
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char *uuid;
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uuid_t *next;
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};
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struct device {
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char *name;
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char *object_path;
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int paired;
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adapter_t *adapter;
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char *alias;
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int connected;
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uuid_t *uuid_list;
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char *address;
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int class;
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int trusted;
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device_t *next;
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};
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struct adapter {
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char *object_path;
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char *mode;
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char *address;
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device_t *device_list;
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adapter_t *next;
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};
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struct userdata {
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pa_module *module;
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pa_dbus_connection *conn;
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adapter_t *adapter_list;
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};
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uuid_t *uuid_new(const char *uuid) {
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uuid_t *node = pa_xnew0(uuid_t, 1);
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node->uuid = pa_xstrdup(uuid);
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node->next = NULL;
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return node;
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}
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void uuid_list_append(uuid_t *node, const char *uuid) {
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while (node->next != NULL) node = node->next;
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node->next = uuid_new(uuid);
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}
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device_t *device_new(const char *device, adapter_t *adapter) {
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device_t *node = pa_xnew0(device_t, 1);
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node->name = NULL;
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node->object_path = pa_xstrdup(device);
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node->paired = -1;
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node->adapter = adapter;
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node->alias = NULL;
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node->connected = -1;
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node->uuid_list = uuid_new("UUID_HEAD");
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node->address = NULL;
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node->class = -1;
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node->trusted = -1;
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node->next = NULL;
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return node;
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}
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void device_list_append(device_t *node, const char *device, adapter_t *adapter) {
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while (node->next != NULL) node = node->next;
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node->next = device_new(device, adapter);
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}
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adapter_t *adapter_new(const char *adapter) {
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adapter_t *node = pa_xnew0(adapter_t, 1);
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node->object_path = pa_xstrdup(adapter);
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node->mode = NULL;
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node->address = NULL;
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node->device_list = device_new("/DEVICE_HEAD", NULL);
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node->next = NULL;
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return node;
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}
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void adapter_list_append(adapter_t *node, const char *adapter) {
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while (node->next != NULL) node = node->next;
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node->next = adapter_new(adapter);
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}
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void print_devices(device_t *device_list) {
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device_t *device_list_i = device_list;
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while (device_list_i != NULL) {
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uuid_t *uuid_list_i = device_list_i->uuid_list;
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if (strcmp(device_list_i->object_path, "/DEVICE_HEAD") != 0) {
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pa_log(" [ %s ]", device_list_i->object_path);
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pa_log(" Name = %s", device_list_i->name);
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pa_log(" Paired = %d", device_list_i->paired);
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pa_log(" Adapter = %s", device_list_i->adapter->object_path);
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pa_log(" Alias = %s", device_list_i->alias);
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pa_log(" Connected = %d", device_list_i->connected);
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pa_log(" UUIDs = ");
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while (uuid_list_i != NULL) {
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if (strcmp(uuid_list_i->uuid, "UUID_HEAD") != 0) {
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pa_log(" %s", uuid_list_i->uuid);
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}
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uuid_list_i = uuid_list_i->next;
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}
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pa_log(" Address = %s", device_list_i->address);
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pa_log(" Class = 0x%x", device_list_i->class);
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pa_log(" Trusted = %d", device_list_i->trusted);
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}
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device_list_i = device_list_i->next;
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}
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}
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void print_adapters(adapter_t *adapter_list) {
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adapter_t *adapter_list_i = adapter_list;
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while (adapter_list_i != NULL) {
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if (strcmp(adapter_list_i->object_path, "/ADAPTER_HEAD") != 0) {
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pa_log("[ %s ]", adapter_list_i->object_path);
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pa_log(" Mode = %s", adapter_list_i->mode);
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pa_log(" Address = %s", adapter_list_i->address);
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print_devices(adapter_list_i->device_list);
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}
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adapter_list_i = adapter_list_i->next;
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}
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}
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DBusMessageIter call_dbus_method(pa_dbus_connection *conn, const char *destination, const char *path, const char *interface,
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const char *method) {
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DBusMessage *msg;
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DBusPendingCall *pending;
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DBusMessageIter args;
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/* construct the DBusMessage */
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msg = dbus_message_new_method_call(destination, path, interface, method);
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/* send the message and get a handle for a reply */
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if (!dbus_connection_send_with_reply(pa_dbus_connection_get(conn), msg, &pending, -1)) {
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pa_log("Out Of Memory!");
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}
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if (pending == NULL) {
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pa_log("Pending Call Null");
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}
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dbus_connection_flush(pa_dbus_connection_get(conn));
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/* free msg */
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dbus_message_unref(msg);
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/* wait for reply */
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dbus_pending_call_block(pending);
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/* get the reply */
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msg = dbus_pending_call_steal_reply(pending);
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if (msg == NULL) {
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pa_log("Reply Null");
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}
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/* free pending */
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dbus_pending_call_unref(pending);
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/* read the reply */
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if (!dbus_message_iter_init(msg, &args))
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pa_log("Reply has no arguments");
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dbus_message_unref(msg);
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return args;
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}
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void detect_adapters(adapter_t *adapter_list, pa_dbus_connection *conn) {
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DBusMessageIter arg_i, element_i, dict_i, variant_i;
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adapter_t *adapter_list_i;
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const char *key, *value;
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/* get adapters */
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arg_i = call_dbus_method(conn, "org.bluez", "/", "org.bluez.Manager", "ListAdapters");
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dbus_message_iter_recurse(&arg_i, &element_i);
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while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
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if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_OBJECT_PATH) {
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dbus_message_iter_get_basic(&element_i, &value);
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adapter_list_append(adapter_list, value);
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}
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dbus_message_iter_next(&element_i);
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}
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/* get adapter properties */
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adapter_list_i = adapter_list->next;
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while (adapter_list_i != NULL) {
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arg_i = call_dbus_method(conn, "org.bluez", adapter_list_i->object_path, "org.bluez.Adapter", "GetProperties");
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dbus_message_iter_recurse(&arg_i, &element_i);
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while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
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if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
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dbus_message_iter_recurse(&element_i, &dict_i);
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dbus_message_iter_get_basic(&dict_i, &key);
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dbus_message_iter_next(&dict_i);
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dbus_message_iter_recurse(&dict_i, &variant_i);
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dbus_message_iter_get_basic(&variant_i, &value);
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if (strcmp(key, "Mode") == 0) {
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adapter_list_i->mode = pa_xstrdup(value);
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}
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else if (strcmp(key, "Address") == 0) {
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adapter_list_i->address = pa_xstrdup(value);
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}
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}
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dbus_message_iter_next(&element_i);
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}
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adapter_list_i = adapter_list_i->next;
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}
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}
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void detect_devices(adapter_t *adapter_list, pa_dbus_connection *conn) {
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DBusMessageIter arg_i, element_i, dict_i, variant_i;
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adapter_t *adapter_list_i;
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device_t *device_list_i, *device_list_prev_i;
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const char *key, *value;
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unsigned int uvalue;
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/* get devices of each adapter */
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adapter_list_i = adapter_list->next;
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while (adapter_list_i != NULL) {
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arg_i = call_dbus_method(conn, "org.bluez", adapter_list_i->object_path , "org.bluez.Adapter", "ListDevices");
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dbus_message_iter_recurse(&arg_i, &element_i);
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while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
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if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_OBJECT_PATH) {
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dbus_message_iter_get_basic(&element_i, &value);
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device_list_append(adapter_list_i->device_list, value, adapter_list_i);
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}
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dbus_message_iter_next(&element_i);
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}
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adapter_list_i = adapter_list_i->next;
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}
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/* get device properties */
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adapter_list_i = adapter_list->next;
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while (adapter_list_i != NULL) {
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device_list_prev_i = adapter_list_i->device_list;
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device_list_i = adapter_list_i->device_list->next;
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while (device_list_i != NULL) {
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arg_i = call_dbus_method(conn, "org.bluez", device_list_i->object_path, "org.bluez.Device", "GetProperties");
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dbus_message_iter_recurse(&arg_i, &element_i);
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while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
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if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
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dbus_message_iter_recurse(&element_i, &dict_i);
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dbus_message_iter_get_basic(&dict_i, &key);
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dbus_message_iter_next(&dict_i);
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dbus_message_iter_recurse(&dict_i, &variant_i);
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if (strcmp(key, "Name") == 0) {
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dbus_message_iter_get_basic(&variant_i, &value);
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device_list_i->name = pa_xstrdup(value);
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}
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else if (strcmp(key, "Paired") == 0) {
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dbus_message_iter_get_basic(&variant_i, &uvalue);
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device_list_i->paired = uvalue;
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}
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else if (strcmp(key, "Alias") == 0) {
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dbus_message_iter_get_basic(&variant_i, &value);
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device_list_i->alias = pa_xstrdup(value);
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}
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else if (strcmp(key, "Connected") == 0) {
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dbus_message_iter_get_basic(&variant_i, &uvalue);
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device_list_i->connected = uvalue;
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}
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else if (strcmp(key, "UUIDs") == 0) {
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DBusMessageIter uuid_i;
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int is_audio_device = 0;
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dbus_message_iter_recurse(&variant_i, &uuid_i);
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while (dbus_message_iter_get_arg_type(&uuid_i) != DBUS_TYPE_INVALID) {
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dbus_message_iter_get_basic(&uuid_i, &value);
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if ( (strcmp(value, HSP_HS_UUID) == 0) || (strcmp(value, HFP_HS_UUID) == 0) ||
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(strcmp(value, A2DP_SOURCE_UUID) == 0) || (strcmp(value, A2DP_SINK_UUID) == 0) )
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is_audio_device = 1;
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uuid_list_append(device_list_i->uuid_list, value);
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dbus_message_iter_next(&uuid_i);
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}
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if (!is_audio_device) {
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/* remove current device */
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device_list_prev_i->next = device_list_i->next;
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pa_xfree(device_list_i);
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break;
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}
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}
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else if (strcmp(key, "Address") == 0) {
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dbus_message_iter_get_basic(&variant_i, &value);
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||||||
|
device_list_i->address = pa_xstrdup(value);
|
||||||
|
}
|
||||||
|
else if (strcmp(key, "Class") == 0) {
|
||||||
|
dbus_message_iter_get_basic(&variant_i, &uvalue);
|
||||||
|
device_list_i->class = uvalue;
|
||||||
|
}
|
||||||
|
else if (strcmp(key, "Trusted") == 0) {
|
||||||
|
dbus_message_iter_get_basic(&variant_i, &uvalue);
|
||||||
|
device_list_i->trusted = uvalue;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
dbus_message_iter_next(&element_i);
|
||||||
|
}
|
||||||
|
device_list_prev_i = device_list_prev_i->next;
|
||||||
|
if (device_list_prev_i == NULL)
|
||||||
|
device_list_i = NULL;
|
||||||
|
else
|
||||||
|
device_list_i = device_list_prev_i->next;
|
||||||
|
}
|
||||||
|
adapter_list_i = adapter_list_i->next;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void pa__done(pa_module* m) {
|
||||||
|
struct userdata *u;
|
||||||
|
adapter_t *adapter_list_i, *adapter_list_next_i;
|
||||||
|
device_t *device_list_i, *device_list_next_i;
|
||||||
|
|
||||||
|
pa_assert(m);
|
||||||
|
|
||||||
|
if (!(u = m->userdata))
|
||||||
|
return;
|
||||||
|
|
||||||
|
if ((adapter_list_i = u->adapter_list) != NULL) {
|
||||||
|
while ((adapter_list_next_i = adapter_list_i->next) != NULL) {
|
||||||
|
if ((device_list_i = adapter_list_i->device_list) != NULL) {
|
||||||
|
while ((device_list_next_i = device_list_i->next) != NULL) {
|
||||||
|
pa_xfree(device_list_i);
|
||||||
|
device_list_i = device_list_next_i;
|
||||||
|
}
|
||||||
|
pa_xfree(device_list_i);
|
||||||
|
}
|
||||||
|
pa_xfree(adapter_list_i);
|
||||||
|
adapter_list_i = adapter_list_next_i;
|
||||||
|
}
|
||||||
|
pa_xfree(adapter_list_i);
|
||||||
|
}
|
||||||
|
|
||||||
|
pa_dbus_connection_unref(u->conn);
|
||||||
|
pa_xfree(u);
|
||||||
|
pa_log("Unloading module-bt-discover");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pa__init(pa_module* m) {
|
||||||
|
pa_modargs *ma = NULL;
|
||||||
|
DBusError err;
|
||||||
|
DBusMessageIter arg_i, element_i;
|
||||||
|
adapter_t *adapter_list_i;
|
||||||
|
device_t *device_list_i;
|
||||||
|
const char *value;
|
||||||
|
unsigned int hcid_running = 0;
|
||||||
|
struct userdata *u;
|
||||||
|
|
||||||
|
pa_assert(m);
|
||||||
|
dbus_error_init(&err);
|
||||||
|
pa_log("Loading module-bt-discover");
|
||||||
|
m->userdata = u = pa_xnew0(struct userdata, 1);
|
||||||
|
u->module = m;
|
||||||
|
|
||||||
|
/* connect to the bus */
|
||||||
|
u->conn = pa_dbus_bus_get(m->core, DBUS_BUS_SYSTEM, &err);
|
||||||
|
if ( dbus_error_is_set(&err) || (u->conn == NULL) ) {
|
||||||
|
pa_log("Failed to get D-Bus connection: %s", err.message);
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* check if hcid is running */
|
||||||
|
arg_i = call_dbus_method(u->conn, "org.freedesktop.DBus", "/org/freedesktop/DBus" , "org.freedesktop.DBus", "ListNames");
|
||||||
|
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_STRING) {
|
||||||
|
dbus_message_iter_get_basic(&element_i, &value);
|
||||||
|
if (strcmp(value, "org.bluez") == 0)
|
||||||
|
hcid_running = 1;
|
||||||
|
}
|
||||||
|
dbus_message_iter_next(&element_i);
|
||||||
|
}
|
||||||
|
if (!hcid_running) {
|
||||||
|
pa_log("hcid not running");
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* static detection of bluetooth devices */
|
||||||
|
u->adapter_list = adapter_new("/ADAPTER_HEAD");
|
||||||
|
detect_adapters(u->adapter_list, u->conn);
|
||||||
|
detect_devices(u->adapter_list, u->conn);
|
||||||
|
|
||||||
|
if (VERBOSE) print_adapters(u->adapter_list);
|
||||||
|
|
||||||
|
/* load device modules */
|
||||||
|
adapter_list_i = u->adapter_list->next;
|
||||||
|
while (adapter_list_i != NULL) {
|
||||||
|
device_list_i = adapter_list_i->device_list->next;
|
||||||
|
while (device_list_i != NULL) {
|
||||||
|
pa_log("Loading module-bt-device for %s", device_list_i->name); /* CHECK: Should it be name or alias? */
|
||||||
|
/* call module */
|
||||||
|
device_list_i = device_list_i->next;
|
||||||
|
}
|
||||||
|
adapter_list_i = adapter_list_i->next;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
fail:
|
||||||
|
if (ma)
|
||||||
|
pa_modargs_free(ma);
|
||||||
|
dbus_error_free(&err);
|
||||||
|
pa__done(m);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
Loading…
Add table
Add a link
Reference in a new issue