narayana/anotherim
narayana/anotherim
3
2
Fork 0
Code Issues 3 Pull requests 1 Actions Packages Projects Releases 6 Wiki Activity

add permission checks to appRTCBluetoothManager

Browse source
This commit is contained in:
Daniel Gultsch 2022-07-15 09:31:43 +02:00
parent 50ba165746
commit 52ff6f446c
2 changed files with 172 additions and 146 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/main/AndroidManifest.xml
View file

@ -2,6 +2,7 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />

299
src/main/java/eu/siacs/conversations/services/AppRTCBluetoothManager.java
View file

@ -9,6 +9,7 @@
*/
package eu.siacs.conversations.services;
import android.Manifest;
import android.annotation.SuppressLint;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
@ -20,25 +21,25 @@ import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.media.AudioManager;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.os.Process;
import android.util.Log;
import androidx.annotation.Nullable;
import androidx.core.app.ActivityCompat;
import com.google.common.collect.ImmutableList;
import org.webrtc.ThreadUtils;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.utils.AppRTCUtils;
/**
* AppRTCProximitySensor manages functions related to Bluetoth devices in the
* AppRTC demo.
*/
/** AppRTCProximitySensor manages functions related to Bluetoth devices in the AppRTC demo. */
public class AppRTCBluetoothManager {
// Timeout interval for starting or stopping audio to a Bluetooth SCO device.
private static final int BLUETOOTH_SCO_TIMEOUT_MS = 4000;
@ -46,28 +47,26 @@ public class AppRTCBluetoothManager {
private static final int MAX_SCO_CONNECTION_ATTEMPTS = 2;
private final Context apprtcContext;
private final AppRTCAudioManager apprtcAudioManager;
@Nullable
private final AudioManager audioManager;
@Nullable private final AudioManager audioManager;
private final Handler handler;
private final BluetoothProfile.ServiceListener bluetoothServiceListener;
private final BroadcastReceiver bluetoothHeadsetReceiver;
int scoConnectionAttempts;
private State bluetoothState;
@Nullable
private BluetoothAdapter bluetoothAdapter;
@Nullable
private BluetoothHeadset bluetoothHeadset;
@Nullable
private BluetoothDevice bluetoothDevice;
@Nullable private BluetoothAdapter bluetoothAdapter;
@Nullable private BluetoothHeadset bluetoothHeadset;
@Nullable private BluetoothDevice bluetoothDevice;
// Runs when the Bluetooth timeout expires. We use that timeout after calling
// startScoAudio() or stopScoAudio() because we're not guaranteed to get a
// callback after those calls.
private final Runnable bluetoothTimeoutRunnable = new Runnable() {
private final Runnable bluetoothTimeoutRunnable =
new Runnable() {
@Override
public void run() {
bluetoothTimeout();
}
};
protected AppRTCBluetoothManager(Context context, AppRTCAudioManager audioManager) {
Log.d(Config.LOGTAG, "ctor");
ThreadUtils.checkIsOnMainThread();
@ -80,42 +79,29 @@ public class AppRTCBluetoothManager {
handler = new Handler(Looper.getMainLooper());
}
/**
* Construction.
*/
/** Construction. */
static AppRTCBluetoothManager create(Context context, AppRTCAudioManager audioManager) {
Log.d(Config.LOGTAG, "create" + AppRTCUtils.getThreadInfo());
return new AppRTCBluetoothManager(context, audioManager);
}
/**
* Returns the internal state.
*/
/** Returns the internal state. */
public State getState() {
ThreadUtils.checkIsOnMainThread();
return bluetoothState;
}
/**
* Activates components required to detect Bluetooth devices and to enable
* BT SCO (audio is routed via BT SCO) for the headset profile. The end
* state will be HEADSET_UNAVAILABLE but a state machine has started which
* will start a state change sequence where the final outcome depends on
* if/when the BT headset is enabled.
* Example of state change sequence when start() is called while BT device
* is connected and enabled:
* UNINITIALIZED --> HEADSET_UNAVAILABLE --> HEADSET_AVAILABLE -->
* SCO_CONNECTING --> SCO_CONNECTED <==> audio is now routed via BT SCO.
* Note that the AppRTCAudioManager is also involved in driving this state
* change.
* Activates components required to detect Bluetooth devices and to enable BT SCO (audio is
* routed via BT SCO) for the headset profile. The end state will be HEADSET_UNAVAILABLE but a
* state machine has started which will start a state change sequence where the final outcome
* depends on if/when the BT headset is enabled. Example of state change sequence when start()
* is called while BT device is connected and enabled: UNINITIALIZED --> HEADSET_UNAVAILABLE -->
* HEADSET_AVAILABLE --> SCO_CONNECTING --> SCO_CONNECTED <==> audio is now routed via BT SCO.
* Note that the AppRTCAudioManager is also involved in driving this state change.
*/
public void start() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "start");
if (!hasPermission(apprtcContext, android.Manifest.permission.BLUETOOTH)) {
Log.w(Config.LOGTAG, "Process (pid=" + Process.myPid() + ") lacks BLUETOOTH permission");
return;
}
if (bluetoothState != State.UNINITIALIZED) {
Log.w(Config.LOGTAG, "Invalid BT state");
return;
@ -130,11 +116,10 @@ public class AppRTCBluetoothManager {
return;
}
// Ensure that the device supports use of BT SCO audio for off call use cases.
if (!audioManager.isBluetoothScoAvailableOffCall()) {
if (this.audioManager == null || !audioManager.isBluetoothScoAvailableOffCall()) {
Log.e(Config.LOGTAG, "Bluetooth SCO audio is not available off call");
return;
}
logBluetoothAdapterInfo(bluetoothAdapter);
// Establish a connection to the HEADSET profile (includes both Bluetooth Headset and
// Hands-Free) proxy object and install a listener.
if (!getBluetoothProfileProxy(
@ -149,16 +134,20 @@ public class AppRTCBluetoothManager {
// Register receiver for change in audio connection state of the Headset profile.
bluetoothHeadsetFilter.addAction(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED);
registerReceiver(bluetoothHeadsetReceiver, bluetoothHeadsetFilter);
Log.d(Config.LOGTAG, "HEADSET profile state: "
+ stateToString(bluetoothAdapter.getProfileConnectionState(BluetoothProfile.HEADSET)));
if (hasBluetoothConnectPermission()) {
Log.d(
Config.LOGTAG,
"HEADSET profile state: "
+ stateToString(
bluetoothAdapter.getProfileConnectionState(
BluetoothProfile.HEADSET)));
}
Log.d(Config.LOGTAG, "Bluetooth proxy for headset profile has started");
bluetoothState = State.HEADSET_UNAVAILABLE;
Log.d(Config.LOGTAG, "start done: BT state=" + bluetoothState);
}
/**
* Stops and closes all components related to Bluetooth audio.
*/
/** Stops and closes all components related to Bluetooth audio. */
public void stop() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "stop: BT state=" + bluetoothState);
@ -184,23 +173,29 @@ public class AppRTCBluetoothManager {
}
/**
* Starts Bluetooth SCO connection with remote device.
* Note that the phone application always has the priority on the usage of the SCO connection
* for telephony. If this method is called while the phone is in call it will be ignored.
* Similarly, if a call is received or sent while an application is using the SCO connection,
* the connection will be lost for the application and NOT returned automatically when the call
* ends. Also note that: up to and including API version JELLY_BEAN_MR1, this method initiates a
* virtual voice call to the Bluetooth headset. After API version JELLY_BEAN_MR2 only a raw SCO
* audio connection is established.
* Starts Bluetooth SCO connection with remote device. Note that the phone application always
* has the priority on the usage of the SCO connection for telephony. If this method is called
* while the phone is in call it will be ignored. Similarly, if a call is received or sent while
* an application is using the SCO connection, the connection will be lost for the application
* and NOT returned automatically when the call ends. Also note that: up to and including API
* version JELLY_BEAN_MR1, this method initiates a virtual voice call to the Bluetooth headset.
* After API version JELLY_BEAN_MR2 only a raw SCO audio connection is established.
* TODO(henrika): should we add support for virtual voice call to BT headset also for JBMR2 and
* higher. It might be required to initiates a virtual voice call since many devices do not
* accept SCO audio without a "call".
*/
public boolean startScoAudio() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "startSco: BT state=" + bluetoothState + ", "
+ "attempts: " + scoConnectionAttempts + ", "
+ "SCO is on: " + isScoOn());
Log.d(
Config.LOGTAG,
"startSco: BT state="
+ bluetoothState
+ ", "
+ "attempts: "
+ scoConnectionAttempts
+ ", "
+ "SCO is on: "
+ isScoOn());
if (scoConnectionAttempts >= MAX_SCO_CONNECTION_ATTEMPTS) {
Log.e(Config.LOGTAG, "BT SCO connection fails - no more attempts");
return false;
@ -213,24 +208,29 @@ public class AppRTCBluetoothManager {
Log.d(Config.LOGTAG, "Starting Bluetooth SCO and waits for ACTION_AUDIO_STATE_CHANGED...");
// The SCO connection establishment can take several seconds, hence we cannot rely on the
// connection to be available when the method returns but instead register to receive the
// intent ACTION_SCO_AUDIO_STATE_UPDATED and wait for the state to be SCO_AUDIO_STATE_CONNECTED.
// intent ACTION_SCO_AUDIO_STATE_UPDATED and wait for the state to be
// SCO_AUDIO_STATE_CONNECTED.
bluetoothState = State.SCO_CONNECTING;
audioManager.startBluetoothSco();
audioManager.setBluetoothScoOn(true);
scoConnectionAttempts++;
startTimer();
Log.d(Config.LOGTAG, "startScoAudio done: BT state=" + bluetoothState + ", "
+ "SCO is on: " + isScoOn());
Log.d(
Config.LOGTAG,
"startScoAudio done: BT state="
+ bluetoothState
+ ", "
+ "SCO is on: "
+ isScoOn());
return true;
}
/**
* Stops Bluetooth SCO connection with remote device.
*/
/** Stops Bluetooth SCO connection with remote device. */
public void stopScoAudio() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "stopScoAudio: BT state=" + bluetoothState + ", "
+ "SCO is on: " + isScoOn());
Log.d(
Config.LOGTAG,
"stopScoAudio: BT state=" + bluetoothState + ", " + "SCO is on: " + isScoOn());
if (bluetoothState != State.SCO_CONNECTING && bluetoothState != State.SCO_CONNECTED) {
return;
}
@ -238,17 +238,18 @@ public class AppRTCBluetoothManager {
audioManager.stopBluetoothSco();
audioManager.setBluetoothScoOn(false);
bluetoothState = State.SCO_DISCONNECTING;
Log.d(Config.LOGTAG, "stopScoAudio done: BT state=" + bluetoothState + ", "
+ "SCO is on: " + isScoOn());
Log.d(
Config.LOGTAG,
"stopScoAudio done: BT state=" + bluetoothState + ", " + "SCO is on: " + isScoOn());
}
/**
* Use the BluetoothHeadset proxy object (controls the Bluetooth Headset
* Service via IPC) to update the list of connected devices for the HEADSET
* profile. The internal state will change to HEADSET_UNAVAILABLE or to
* HEADSET_AVAILABLE and |bluetoothDevice| will be mapped to the connected
* device if available.
* Use the BluetoothHeadset proxy object (controls the Bluetooth Headset Service via IPC) to
* update the list of connected devices for the HEADSET profile. The internal state will change
* to HEADSET_UNAVAILABLE or to HEADSET_AVAILABLE and |bluetoothDevice| will be mapped to the
* connected device if available.
*/
@SuppressLint("MissingPermission")
public void updateDevice() {
if (bluetoothState == State.UNINITIALIZED || bluetoothHeadset == null) {
return;
@ -257,7 +258,12 @@ public class AppRTCBluetoothManager {
// Get connected devices for the headset profile. Returns the set of
// devices which are in state STATE_CONNECTED. The BluetoothDevice class
// is just a thin wrapper for a Bluetooth hardware address.
List<BluetoothDevice> devices = bluetoothHeadset.getConnectedDevices();
final List<BluetoothDevice> devices;
if (hasBluetoothConnectPermission()) {
devices = bluetoothHeadset.getConnectedDevices();
} else {
devices = ImmutableList.of();
}
if (devices.isEmpty()) {
bluetoothDevice = null;
bluetoothState = State.HEADSET_UNAVAILABLE;
@ -266,17 +272,21 @@ public class AppRTCBluetoothManager {
// Always use first device in list. Android only supports one device.
bluetoothDevice = devices.get(0);
bluetoothState = State.HEADSET_AVAILABLE;
Log.d(Config.LOGTAG, "Connected bluetooth headset: "
+ "name=" + bluetoothDevice.getName() + ", "
+ "state=" + stateToString(bluetoothHeadset.getConnectionState(bluetoothDevice))
+ ", SCO audio=" + bluetoothHeadset.isAudioConnected(bluetoothDevice));
Log.d(
Config.LOGTAG,
"Connected bluetooth headset: "
+ "name="
+ bluetoothDevice.getName()
+ ", "
+ "state="
+ stateToString(bluetoothHeadset.getConnectionState(bluetoothDevice))
+ ", SCO audio="
+ bluetoothHeadset.isAudioConnected(bluetoothDevice));
}
Log.d(Config.LOGTAG, "updateDevice done: BT state=" + bluetoothState);
}
/**
* Stubs for test mocks.
*/
/** Stubs for test mocks. */
@Nullable
protected AudioManager getAudioManager(Context context) {
return (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
@ -295,52 +305,31 @@ public class AppRTCBluetoothManager {
return bluetoothAdapter.getProfileProxy(context, listener, profile);
}
protected boolean hasPermission(Context context, String permission) {
return apprtcContext.checkPermission(permission, Process.myPid(), Process.myUid())
protected boolean hasBluetoothConnectPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
return ActivityCompat.checkSelfPermission(
apprtcContext, Manifest.permission.BLUETOOTH_CONNECT)
== PackageManager.PERMISSION_GRANTED;
}
/**
* Logs the state of the local Bluetooth adapter.
*/
@SuppressLint("HardwareIds")
protected void logBluetoothAdapterInfo(BluetoothAdapter localAdapter) {
Log.d(Config.LOGTAG, "BluetoothAdapter: "
+ "enabled=" + localAdapter.isEnabled() + ", "
+ "state=" + stateToString(localAdapter.getState()) + ", "
+ "name=" + localAdapter.getName() + ", "
+ "address=" + localAdapter.getAddress());
// Log the set of BluetoothDevice objects that are bonded (paired) to the local adapter.
Set<BluetoothDevice> pairedDevices = localAdapter.getBondedDevices();
if (!pairedDevices.isEmpty()) {
Log.d(Config.LOGTAG, "paired devices:");
for (BluetoothDevice device : pairedDevices) {
Log.d(Config.LOGTAG, " name=" + device.getName() + ", address=" + device.getAddress());
}
} else {
return true;
}
}
/**
* Ensures that the audio manager updates its list of available audio devices.
*/
/** Ensures that the audio manager updates its list of available audio devices. */
private void updateAudioDeviceState() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "updateAudioDeviceState");
apprtcAudioManager.updateAudioDeviceState();
}
/**
* Starts timer which times out after BLUETOOTH_SCO_TIMEOUT_MS milliseconds.
*/
/** Starts timer which times out after BLUETOOTH_SCO_TIMEOUT_MS milliseconds. */
private void startTimer() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "startTimer");
handler.postDelayed(bluetoothTimeoutRunnable, BLUETOOTH_SCO_TIMEOUT_MS);
}
/**
* Cancels any outstanding timer tasks.
*/
/** Cancels any outstanding timer tasks. */
private void cancelTimer() {
ThreadUtils.checkIsOnMainThread();
Log.d(Config.LOGTAG, "cancelTimer");
@ -348,23 +337,36 @@ public class AppRTCBluetoothManager {
}
/**
* Called when start of the BT SCO channel takes too long time. Usually
* happens when the BT device has been turned on during an ongoing call.
* Called when start of the BT SCO channel takes too long time. Usually happens when the BT
* device has been turned on during an ongoing call.
*/
@SuppressLint("MissingPermission")
private void bluetoothTimeout() {
ThreadUtils.checkIsOnMainThread();
if (bluetoothState == State.UNINITIALIZED || bluetoothHeadset == null) {
return;
}
Log.d(Config.LOGTAG, "bluetoothTimeout: BT state=" + bluetoothState + ", "
+ "attempts: " + scoConnectionAttempts + ", "
+ "SCO is on: " + isScoOn());
Log.d(
Config.LOGTAG,
"bluetoothTimeout: BT state="
+ bluetoothState
+ ", "
+ "attempts: "
+ scoConnectionAttempts
+ ", "
+ "SCO is on: "
+ isScoOn());
if (bluetoothState != State.SCO_CONNECTING) {
return;
}
// Bluetooth SCO should be connecting; check the latest result.
boolean scoConnected = false;
List<BluetoothDevice> devices = bluetoothHeadset.getConnectedDevices();
final List<BluetoothDevice> devices;
if (hasBluetoothConnectPermission()) {
devices = bluetoothHeadset.getConnectedDevices();
} else {
devices = Collections.emptyList();
}
if (devices.size() > 0) {
bluetoothDevice = devices.get(0);
if (bluetoothHeadset.isAudioConnected(bluetoothDevice)) {
@ -387,16 +389,12 @@ public class AppRTCBluetoothManager {
Log.d(Config.LOGTAG, "bluetoothTimeout done: BT state=" + bluetoothState);
}
/**
* Checks whether audio uses Bluetooth SCO.
*/
/** Checks whether audio uses Bluetooth SCO. */
private boolean isScoOn() {
return audioManager.isBluetoothScoOn();
}
/**
* Converts BluetoothAdapter states into local string representations.
*/
/** Converts BluetoothAdapter states into local string representations. */
private String stateToString(int state) {
switch (state) {
case BluetoothAdapter.STATE_DISCONNECTED:
@ -412,11 +410,13 @@ public class AppRTCBluetoothManager {
case BluetoothAdapter.STATE_ON:
return "ON";
case BluetoothAdapter.STATE_TURNING_OFF:
// Indicates the local Bluetooth adapter is turning off. Local clients should immediately
// Indicates the local Bluetooth adapter is turning off. Local clients should
// immediately
// attempt graceful disconnection of any remote links.
return "TURNING_OFF";
case BluetoothAdapter.STATE_TURNING_ON:
// Indicates the local Bluetooth adapter is turning on. However local clients should wait
// Indicates the local Bluetooth adapter is turning on. However local clients should
// wait
// for STATE_ON before attempting to use the adapter.
return "TURNING_ON";
default:
@ -457,7 +457,9 @@ public class AppRTCBluetoothManager {
if (profile != BluetoothProfile.HEADSET || bluetoothState == State.UNINITIALIZED) {
return;
}
Log.d(Config.LOGTAG, "BluetoothServiceListener.onServiceConnected: BT state=" + bluetoothState);
Log.d(
Config.LOGTAG,
"BluetoothServiceListener.onServiceConnected: BT state=" + bluetoothState);
// Android only supports one connected Bluetooth Headset at a time.
bluetoothHeadset = (BluetoothHeadset) proxy;
updateAudioDeviceState();
@ -470,7 +472,9 @@ public class AppRTCBluetoothManager {
if (profile != BluetoothProfile.HEADSET || bluetoothState == State.UNINITIALIZED) {
return;
}
Log.d(Config.LOGTAG, "BluetoothServiceListener.onServiceDisconnected: BT state=" + bluetoothState);
Log.d(
Config.LOGTAG,
"BluetoothServiceListener.onServiceDisconnected: BT state=" + bluetoothState);
stopScoAudio();
bluetoothHeadset = null;
bluetoothDevice = null;
@ -495,12 +499,20 @@ public class AppRTCBluetoothManager {
// headset while audio is active using another audio device.
if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) {
final int state =
intent.getIntExtra(BluetoothHeadset.EXTRA_STATE, BluetoothHeadset.STATE_DISCONNECTED);
Log.d(Config.LOGTAG, "BluetoothHeadsetBroadcastReceiver.onReceive: "
intent.getIntExtra(
BluetoothHeadset.EXTRA_STATE, BluetoothHeadset.STATE_DISCONNECTED);
Log.d(
Config.LOGTAG,
"BluetoothHeadsetBroadcastReceiver.onReceive: "
+ "a=ACTION_CONNECTION_STATE_CHANGED, "
+ "s=" + stateToString(state) + ", "
+ "sb=" + isInitialStickyBroadcast() + ", "
+ "BT state: " + bluetoothState);
+ "s="
+ stateToString(state)
+ ", "
+ "sb="
+ isInitialStickyBroadcast()
+ ", "
+ "BT state: "
+ bluetoothState);
if (state == BluetoothHeadset.STATE_CONNECTED) {
scoConnectionAttempts = 0;
updateAudioDeviceState();
@ -516,13 +528,22 @@ public class AppRTCBluetoothManager {
// Change in the audio (SCO) connection state of the Headset profile.
// Typically received after call to startScoAudio() has finalized.
} else if (action.equals(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED)) {
final int state = intent.getIntExtra(
BluetoothHeadset.EXTRA_STATE, BluetoothHeadset.STATE_AUDIO_DISCONNECTED);
Log.d(Config.LOGTAG, "BluetoothHeadsetBroadcastReceiver.onReceive: "
final int state =
intent.getIntExtra(
BluetoothHeadset.EXTRA_STATE,
BluetoothHeadset.STATE_AUDIO_DISCONNECTED);
Log.d(
Config.LOGTAG,
"BluetoothHeadsetBroadcastReceiver.onReceive: "
+ "a=ACTION_AUDIO_STATE_CHANGED, "
+ "s=" + stateToString(state) + ", "
+ "sb=" + isInitialStickyBroadcast() + ", "
+ "BT state: " + bluetoothState);
+ "s="
+ stateToString(state)
+ ", "
+ "sb="
+ isInitialStickyBroadcast()
+ ", "
+ "BT state: "
+ bluetoothState);
if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) {
cancelTimer();
if (bluetoothState == State.SCO_CONNECTING) {
@ -531,14 +552,18 @@ public class AppRTCBluetoothManager {
scoConnectionAttempts = 0;
updateAudioDeviceState();
} else {
Log.w(Config.LOGTAG, "Unexpected state BluetoothHeadset.STATE_AUDIO_CONNECTED");
Log.w(
Config.LOGTAG,
"Unexpected state BluetoothHeadset.STATE_AUDIO_CONNECTED");
}
} else if (state == BluetoothHeadset.STATE_AUDIO_CONNECTING) {
Log.d(Config.LOGTAG, "+++ Bluetooth audio SCO is now connecting...");
} else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED) {
Log.d(Config.LOGTAG, "+++ Bluetooth audio SCO is now disconnected");
if (isInitialStickyBroadcast()) {
Log.d(Config.LOGTAG, "Ignore STATE_AUDIO_DISCONNECTED initial sticky broadcast.");
Log.d(
Config.LOGTAG,
"Ignore STATE_AUDIO_DISCONNECTED initial sticky broadcast.");
return;
}
updateAudioDeviceState();