1255 lines
55 KiB
Java
1255 lines
55 KiB
Java
/*
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* Copyright 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.bluetooth;
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import android.annotation.CallbackExecutor;
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import android.annotation.FlaggedApi;
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import android.annotation.IntDef;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.RequiresPermission;
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import android.annotation.SdkConstant;
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import android.annotation.SystemApi;
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import android.bluetooth.annotations.RequiresBluetoothConnectPermission;
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import android.bluetooth.annotations.RequiresBluetoothLocationPermission;
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import android.bluetooth.annotations.RequiresBluetoothScanPermission;
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import android.bluetooth.le.ScanFilter;
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import android.bluetooth.le.ScanSettings;
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import android.content.Context;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.util.CloseGuard;
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import android.util.Log;
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import com.android.bluetooth.flags.Flags;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.concurrent.Executor;
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/**
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* This class provides the public APIs for the LE Audio Broadcast Assistant role, which implements
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* client side control points for Broadcast Audio Scan Service (BASS).
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*
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* <p>An LE Audio Broadcast Assistant can help a Broadcast Sink to scan for available Broadcast
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* Sources. The Broadcast Sink achieves this by offloading the scan to a Broadcast Assistant. This
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* is facilitated by the Broadcast Audio Scan Service (BASS). A BASS server is a GATT server that is
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* part of the Scan Delegator on a Broadcast Sink. A BASS client instead runs on the Broadcast
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* Assistant.
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*
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* <p>Once a GATT connection is established between the BASS client and the BASS server, the
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* Broadcast Sink can offload the scans to the Broadcast Assistant. Upon finding new Broadcast
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* Sources, the Broadcast Assistant then notifies the Broadcast Sink about these over the
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* established GATT connection. The Scan Delegator on the Broadcast Sink can also notify the
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* Assistant about changes such as addition and removal of Broadcast Sources.
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*
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* <p>In the context of this class, BASS server will be addressed as Broadcast Sink and BASS client
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* will be addressed as Broadcast Assistant.
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*
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* <p>BluetoothLeBroadcastAssistant is a proxy object for controlling the Broadcast Assistant
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* service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get the
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* BluetoothLeBroadcastAssistant proxy object.
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*
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* @hide
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*/
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@SystemApi
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public final class BluetoothLeBroadcastAssistant implements BluetoothProfile, AutoCloseable {
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private static final String TAG = "BluetoothLeBroadcastAssistant";
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private static final boolean DBG = true;
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private final Map<Callback, Executor> mCallbackExecutorMap = new HashMap<>();
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private final IBluetoothLeBroadcastAssistantCallback mCallback =
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new IBluetoothLeBroadcastAssistantCallback.Stub() {
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@Override
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public void onSearchStarted(int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSearchStarted(reason));
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}
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}
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@Override
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public void onSearchStartFailed(int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSearchStartFailed(reason));
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}
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}
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@Override
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public void onSearchStopped(int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSearchStopped(reason));
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}
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}
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@Override
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public void onSearchStopFailed(int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSearchStopFailed(reason));
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}
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}
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@Override
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public void onSourceFound(BluetoothLeBroadcastMetadata source) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSourceFound(source));
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}
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}
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@Override
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public void onSourceAdded(BluetoothDevice sink, int sourceId, int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSourceAdded(sink, sourceId, reason));
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}
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}
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@Override
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public void onSourceAddFailed(
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BluetoothDevice sink, BluetoothLeBroadcastMetadata source, int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSourceAddFailed(sink, source, reason));
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}
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}
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@Override
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public void onSourceModified(BluetoothDevice sink, int sourceId, int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSourceModified(sink, sourceId, reason));
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}
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}
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@Override
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public void onSourceModifyFailed(BluetoothDevice sink, int sourceId, int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(
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() -> callback.onSourceModifyFailed(sink, sourceId, reason));
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}
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}
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@Override
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public void onSourceRemoved(BluetoothDevice sink, int sourceId, int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSourceRemoved(sink, sourceId, reason));
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}
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}
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@Override
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public void onSourceRemoveFailed(BluetoothDevice sink, int sourceId, int reason) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(
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() -> callback.onSourceRemoveFailed(sink, sourceId, reason));
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}
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}
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@Override
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public void onReceiveStateChanged(
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BluetoothDevice sink,
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int sourceId,
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BluetoothLeBroadcastReceiveState state) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(
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() -> callback.onReceiveStateChanged(sink, sourceId, state));
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}
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}
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@Override
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public void onSourceLost(int broadcastId) {
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for (Map.Entry<BluetoothLeBroadcastAssistant.Callback, Executor>
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callbackExecutorEntry : mCallbackExecutorMap.entrySet()) {
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BluetoothLeBroadcastAssistant.Callback callback =
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callbackExecutorEntry.getKey();
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Executor executor = callbackExecutorEntry.getValue();
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executor.execute(() -> callback.onSourceLost(broadcastId));
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}
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}
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};
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/**
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* This class provides a set of callbacks that are invoked when scanning for Broadcast Sources
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* is offloaded to a Broadcast Assistant.
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*
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* @hide
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*/
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@SystemApi
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public interface Callback {
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/** @hide */
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@Retention(RetentionPolicy.SOURCE)
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@IntDef(
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value = {
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BluetoothStatusCodes.ERROR_UNKNOWN,
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BluetoothStatusCodes.REASON_LOCAL_APP_REQUEST,
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BluetoothStatusCodes.REASON_LOCAL_STACK_REQUEST,
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BluetoothStatusCodes.REASON_REMOTE_REQUEST,
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BluetoothStatusCodes.REASON_SYSTEM_POLICY,
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BluetoothStatusCodes.ERROR_HARDWARE_GENERIC,
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BluetoothStatusCodes.ERROR_LE_BROADCAST_ASSISTANT_DUPLICATE_ADDITION,
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BluetoothStatusCodes.ERROR_BAD_PARAMETERS,
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BluetoothStatusCodes.ERROR_REMOTE_LINK_ERROR,
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BluetoothStatusCodes.ERROR_REMOTE_NOT_ENOUGH_RESOURCES,
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BluetoothStatusCodes.ERROR_LE_BROADCAST_ASSISTANT_INVALID_SOURCE_ID,
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BluetoothStatusCodes.ERROR_ALREADY_IN_TARGET_STATE,
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BluetoothStatusCodes.ERROR_REMOTE_OPERATION_REJECTED,
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})
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@interface Reason {}
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/**
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* Callback invoked when the implementation started searching for nearby Broadcast Sources.
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*
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* @param reason reason code on why search has started
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* @hide
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*/
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@SystemApi
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void onSearchStarted(@Reason int reason);
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/**
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* Callback invoked when the implementation failed to start searching for nearby broadcast
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* sources.
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*
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* @param reason reason for why search failed to start
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* @hide
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*/
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@SystemApi
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void onSearchStartFailed(@Reason int reason);
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/**
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* Callback invoked when the implementation stopped searching for nearby Broadcast Sources.
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*
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* @param reason reason code on why search has stopped
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* @hide
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*/
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@SystemApi
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void onSearchStopped(@Reason int reason);
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/**
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* Callback invoked when the implementation failed to stop searching for nearby broadcast
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* sources.
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*
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* @param reason for why search failed to start
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* @hide
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*/
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@SystemApi
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void onSearchStopFailed(@Reason int reason);
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/**
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* Callback invoked when a new Broadcast Source is found together with the {@link
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* BluetoothLeBroadcastMetadata}.
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*
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* @param source {@link BluetoothLeBroadcastMetadata} representing a Broadcast Source
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* @hide
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*/
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@SystemApi
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void onSourceFound(@NonNull BluetoothLeBroadcastMetadata source);
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/**
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* Callback invoked when a new Broadcast Source has been successfully added to the Broadcast
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* Sink.
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*
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* <p>Broadcast audio stream may not have been started after this callback, the caller need
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* to monitor {@link #onReceiveStateChanged(BluetoothDevice, int,
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* BluetoothLeBroadcastReceiveState)} to see if synchronization with Broadcast Source is
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* successful
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*
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* <p>When <var>isGroupOp</var> is true when {@link #addSource(BluetoothDevice,
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* BluetoothLeBroadcastMetadata, boolean)} is called, each Broadcast Sink device in the
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* coordinated set will trigger and individual update
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*
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* <p>A new source could be added by the Broadcast Sink itself or other Broadcast Assistants
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* connected to the Broadcast Sink and in this case the reason code will be {@link
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* BluetoothStatusCodes#REASON_REMOTE_REQUEST}
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*
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* @param sink Broadcast Sink device on which a new Broadcast Source has been added
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* @param sourceId source ID as defined in the BASS specification
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* @param reason reason of source addition
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* @hide
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*/
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@SystemApi
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void onSourceAdded(@NonNull BluetoothDevice sink, @Reason int sourceId, @Reason int reason);
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/**
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* Callback invoked when the new Broadcast Source failed to be added to the Broadcast Sink.
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*
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* @param sink Broadcast Sink device on which a new Broadcast Source has been added
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* @param source metadata representation of the Broadcast Source
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* @param reason reason why the addition has failed
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* @hide
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*/
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@SystemApi
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void onSourceAddFailed(
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@NonNull BluetoothDevice sink,
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@NonNull BluetoothLeBroadcastMetadata source,
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@Reason int reason);
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/**
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* Callback invoked when an existing Broadcast Source within a Broadcast Sink has been
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* modified.
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*
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* <p>Actual state after the modification will be delivered via the next {@link
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* Callback#onReceiveStateChanged(BluetoothDevice, int, BluetoothLeBroadcastReceiveState)}
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* callback.
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*
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* <p>A source could be modified by the Broadcast Sink itself or other Broadcast Assistants
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* connected to the Broadcast Sink and in this case the reason code will be {@link
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* BluetoothStatusCodes#REASON_REMOTE_REQUEST}
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*
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* @param sink Broadcast Sink device on which a Broadcast Source has been modified
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* @param sourceId source ID as defined in the BASS specification
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* @param reason reason of source modification
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* @hide
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*/
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@SystemApi
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void onSourceModified(@NonNull BluetoothDevice sink, int sourceId, @Reason int reason);
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/**
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* Callback invoked when the Broadcast Assistant failed to modify an existing Broadcast
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* Source on a Broadcast Sink.
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*
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* @param sink Broadcast Sink device on which a Broadcast Source has been modified
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* @param sourceId source ID as defined in the BASS specification
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* @param reason reason why the modification has failed
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* @hide
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*/
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@SystemApi
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void onSourceModifyFailed(@NonNull BluetoothDevice sink, int sourceId, @Reason int reason);
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/**
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* Callback invoked when a Broadcast Source has been successfully removed from the Broadcast
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* Sink.
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*
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* <p>No more update for the source ID via {@link
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* Callback#onReceiveStateChanged(BluetoothDevice, int, BluetoothLeBroadcastReceiveState)}
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* after this callback.
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*
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* <p>A source could be removed by the Broadcast Sink itself or other Broadcast Assistants
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* connected to the Broadcast Sink and in this case the reason code will be {@link
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* BluetoothStatusCodes#REASON_REMOTE_REQUEST}
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*
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* @param sink Broadcast Sink device from which a Broadcast Source has been removed
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* @param sourceId source ID as defined in the BASS specification
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* @param reason reason why the Broadcast Source was removed
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* @hide
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*/
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@SystemApi
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void onSourceRemoved(@NonNull BluetoothDevice sink, int sourceId, @Reason int reason);
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/**
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* Callback invoked when the Broadcast Assistant failed to remove an existing Broadcast
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* Source on a Broadcast Sink.
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*
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* @param sink Broadcast Sink device on which a Broadcast Source was to be removed
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* @param sourceId source ID as defined in the BASS specification
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* @param reason reason why the modification has failed
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* @hide
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*/
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@SystemApi
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void onSourceRemoveFailed(@NonNull BluetoothDevice sink, int sourceId, @Reason int reason);
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/**
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* Callback invoked when the Broadcast Receive State information of a Broadcast Sink device
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* changes.
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*
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* @param sink BASS server device that is also a Broadcast Sink device
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* @param sourceId source ID as defined in the BASS specification
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* @param state latest state information between the Broadcast Sink and a Broadcast Source
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* @hide
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*/
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@SystemApi
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void onReceiveStateChanged(
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@NonNull BluetoothDevice sink,
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int sourceId,
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@NonNull BluetoothLeBroadcastReceiveState state);
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/**
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* Callback invoked when the Broadcast Source is lost together with source broadcast id.
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*
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* <p>This callback is to notify source lost due to periodic advertising sync lost. Callback
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* client can know that the source notified by {@link
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* Callback#onSourceFound(BluetoothLeBroadcastMetadata)} before is not available any more
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* after this callback.
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*
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* @param broadcastId broadcast ID as defined in the BASS specification
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* @hide
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*/
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@FlaggedApi(Flags.FLAG_LEAUDIO_BROADCAST_MONITOR_SOURCE_SYNC_STATUS)
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@SystemApi
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default void onSourceLost(int broadcastId) {}
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}
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/**
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* Intent used to broadcast the change in connection state of devices via Broadcast Audio Scan
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* Service (BASS). Please note that in a coordinated set, each set member will connect via BASS
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* individually. Group operations on a single set member will propagate to the entire set.
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*
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* <p>For example, in the binaural case, there will be two different LE devices for the left and
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* right side and each device will have their own connection state changes. If both devices
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* belongs to on Coordinated Set, group operation on one of them will affect both devices.
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*
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* <p>This intent will have 3 extras:
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*
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* <ul>
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* <li>{@link #EXTRA_STATE} - The current state of the profile.
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* <li>{@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.
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* <li>{@link BluetoothDevice#EXTRA_DEVICE} - The remote device.
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* </ul>
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*
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* <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of {@link
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* #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, {@link #STATE_CONNECTED}, {@link
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* #STATE_DISCONNECTING}.
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*
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* @hide
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*/
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@SystemApi
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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@SdkConstant(SdkConstant.SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_CONNECTION_STATE_CHANGED =
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"android.bluetooth.action.CONNECTION_STATE_CHANGED";
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|
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private CloseGuard mCloseGuard;
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private BluetoothAdapter mBluetoothAdapter;
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|
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private IBluetoothLeBroadcastAssistant mService;
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|
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/**
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* Create a new instance of an LE Audio Broadcast Assistant.
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*
|
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* @hide
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*/
|
|
/*package*/ BluetoothLeBroadcastAssistant(
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@NonNull Context context, @NonNull BluetoothAdapter bluetoothAdapter) {
|
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mBluetoothAdapter = bluetoothAdapter;
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mService = null;
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mCloseGuard = new CloseGuard();
|
|
mCloseGuard.open("close");
|
|
}
|
|
|
|
/** @hide */
|
|
@SuppressWarnings("Finalize") // TODO(b/314811467)
|
|
protected void finalize() {
|
|
if (mCloseGuard != null) {
|
|
mCloseGuard.warnIfOpen();
|
|
}
|
|
close();
|
|
}
|
|
|
|
/** @hide */
|
|
@Override
|
|
public void close() {
|
|
mBluetoothAdapter.closeProfileProxy(this);
|
|
}
|
|
|
|
/** @hide */
|
|
@Override
|
|
public void onServiceConnected(IBinder service) {
|
|
mService = IBluetoothLeBroadcastAssistant.Stub.asInterface(service);
|
|
// re-register the service-to-app callback
|
|
log("onServiceConnected");
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
return;
|
|
}
|
|
try {
|
|
mService.registerCallback(mCallback);
|
|
} catch (RemoteException e) {
|
|
Log.e(
|
|
TAG,
|
|
"onServiceConnected: Failed to register "
|
|
+ "Le Broadcaster Assistant callback",
|
|
e);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @hide */
|
|
@Override
|
|
public void onServiceDisconnected() {
|
|
mService = null;
|
|
}
|
|
|
|
private IBluetoothLeBroadcastAssistant getService() {
|
|
return mService;
|
|
}
|
|
|
|
/** @hide */
|
|
@Override
|
|
public BluetoothAdapter getAdapter() {
|
|
return mBluetoothAdapter;
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
@Override
|
|
@BluetoothProfile.BtProfileState
|
|
public int getConnectionState(@NonNull BluetoothDevice sink) {
|
|
log("getConnectionState(" + sink + ")");
|
|
Objects.requireNonNull(sink, "sink cannot be null");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final int defaultValue = BluetoothProfile.STATE_DISCONNECTED;
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled() && isValidDevice(sink)) {
|
|
try {
|
|
return service.getConnectionState(sink);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
@Override
|
|
@NonNull
|
|
public List<BluetoothDevice> getDevicesMatchingConnectionStates(@NonNull int[] states) {
|
|
log("getDevicesMatchingConnectionStates()");
|
|
Objects.requireNonNull(states, "states cannot be null");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()) {
|
|
try {
|
|
return service.getDevicesMatchingConnectionStates(states);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
@Override
|
|
public @NonNull List<BluetoothDevice> getConnectedDevices() {
|
|
log("getConnectedDevices()");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()) {
|
|
try {
|
|
return service.getConnectedDevices();
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Set connection policy of the profile.
|
|
*
|
|
* <p>The device should already be paired. Connection policy can be one of {@link
|
|
* #CONNECTION_POLICY_ALLOWED}, {@link #CONNECTION_POLICY_FORBIDDEN}, {@link
|
|
* #CONNECTION_POLICY_UNKNOWN}
|
|
*
|
|
* @param device Paired bluetooth device
|
|
* @param connectionPolicy is the connection policy to set to for this profile
|
|
* @return true if connectionPolicy is set, false on error
|
|
* @throws NullPointerException if <var>device</var> is null
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public boolean setConnectionPolicy(
|
|
@NonNull BluetoothDevice device, @ConnectionPolicy int connectionPolicy) {
|
|
log("setConnectionPolicy()");
|
|
Objects.requireNonNull(device, "device cannot be null");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final boolean defaultValue = false;
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()
|
|
&& isValidDevice(device)
|
|
&& (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN
|
|
|| connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) {
|
|
try {
|
|
return service.setConnectionPolicy(device, connectionPolicy);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Get the connection policy of the profile.
|
|
*
|
|
* <p>The connection policy can be any of: {@link #CONNECTION_POLICY_ALLOWED}, {@link
|
|
* #CONNECTION_POLICY_FORBIDDEN}, {@link #CONNECTION_POLICY_UNKNOWN}
|
|
*
|
|
* @param device Bluetooth device
|
|
* @return connection policy of the device
|
|
* @throws NullPointerException if <var>device</var> is null
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public @ConnectionPolicy int getConnectionPolicy(@NonNull BluetoothDevice device) {
|
|
log("getConnectionPolicy()");
|
|
Objects.requireNonNull(device, "device cannot be null");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final int defaultValue = BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled() && isValidDevice(device)) {
|
|
try {
|
|
return service.getConnectionPolicy(device);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Register a {@link Callback} that will be invoked during the operation of this profile.
|
|
*
|
|
* <p>Repeated registration of the same <var>callback</var> object after the first call to this
|
|
* method will result with IllegalArgumentException being thrown, even when the
|
|
* <var>executor</var> is different. API caller would have to call {@link
|
|
* #unregisterCallback(Callback)} with the same callback object before registering it again.
|
|
*
|
|
* @param executor an {@link Executor} to execute given callback
|
|
* @param callback user implementation of the {@link Callback}
|
|
* @throws NullPointerException if a null executor, or callback is given
|
|
* @throws IllegalArgumentException if the same <var>callback<var> is already registered
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void registerCallback(
|
|
@NonNull @CallbackExecutor Executor executor, @NonNull Callback callback) {
|
|
Objects.requireNonNull(executor, "executor cannot be null");
|
|
Objects.requireNonNull(callback, "callback cannot be null");
|
|
log("registerCallback");
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
// If the callback map is empty, we register the service-to-app callback
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
if (!mBluetoothAdapter.isEnabled()) {
|
|
/* If Bluetooth is off, just store callback and it will be registered
|
|
* when Bluetooth is on
|
|
*/
|
|
mCallbackExecutorMap.put(callback, executor);
|
|
return;
|
|
}
|
|
try {
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service != null) {
|
|
service.registerCallback(mCallback);
|
|
}
|
|
} catch (RemoteException e) {
|
|
throw e.rethrowAsRuntimeException();
|
|
}
|
|
}
|
|
|
|
// Adds the passed in callback to our map of callbacks to executors
|
|
if (mCallbackExecutorMap.containsKey(callback)) {
|
|
throw new IllegalArgumentException("This callback has already been registered");
|
|
}
|
|
mCallbackExecutorMap.put(callback, executor);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unregister the specified {@link Callback}.
|
|
*
|
|
* <p>The same {@link Callback} object used when calling {@link #registerCallback(Executor,
|
|
* Callback)} must be used.
|
|
*
|
|
* <p>Callbacks are automatically unregistered when application process goes away.
|
|
*
|
|
* @param callback user implementation of the {@link Callback}
|
|
* @throws NullPointerException when callback is null
|
|
* @throws IllegalArgumentException when the <var>callback</var> was not registered before
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void unregisterCallback(@NonNull Callback callback) {
|
|
Objects.requireNonNull(callback, "callback cannot be null");
|
|
log("unregisterCallback");
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.remove(callback) == null) {
|
|
throw new IllegalArgumentException("This callback has not been registered");
|
|
}
|
|
|
|
// If the callback map is empty, we unregister the service-to-app callback
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
try {
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service != null) {
|
|
service.unregisterCallback(mCallback);
|
|
}
|
|
} catch (RemoteException e) {
|
|
throw e.rethrowAsRuntimeException();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Search for LE Audio Broadcast Sources on behalf of all devices connected via Broadcast Audio
|
|
* Scan Service, filtered by <var>filters</var>.
|
|
*
|
|
* <p>On success, {@link Callback#onSearchStarted(int)} will be called with reason code {@link
|
|
* BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}.
|
|
*
|
|
* <p>On failure, {@link Callback#onSearchStartFailed(int)} will be called with reason code
|
|
*
|
|
* <p>The implementation will also synchronize with discovered Broadcast Sources and get their
|
|
* metadata before passing the Broadcast Source metadata back to the application using {@link
|
|
* Callback#onSourceFound(BluetoothLeBroadcastMetadata)}.
|
|
*
|
|
* <p>Please disconnect the Broadcast Sink's BASS server by calling {@link
|
|
* #setConnectionPolicy(BluetoothDevice, int)} with {@link
|
|
* BluetoothProfile#CONNECTION_POLICY_FORBIDDEN} if you do not want the Broadcast Sink to
|
|
* receive notifications about this search before calling this method.
|
|
*
|
|
* <p>App must also have {@link android.Manifest.permission#ACCESS_FINE_LOCATION
|
|
* ACCESS_FINE_LOCATION} permission in order to get results.
|
|
*
|
|
* <p><var>filters</var> will be AND'ed with internal filters in the implementation and {@link
|
|
* ScanSettings} will be managed by the implementation.
|
|
*
|
|
* @param filters {@link ScanFilter}s for finding exact Broadcast Source, if no filter is
|
|
* needed, please provide an empty list instead
|
|
* @throws NullPointerException when <var>filters</var> argument is null
|
|
* @throws IllegalStateException when no callback is registered
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothScanPermission
|
|
@RequiresBluetoothLocationPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_SCAN,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void startSearchingForSources(@NonNull List<ScanFilter> filters) {
|
|
log("searchForBroadcastSources");
|
|
Objects.requireNonNull(filters, "filters can be empty, but not null");
|
|
if (mCallback == null) {
|
|
throw new IllegalStateException("No callback was ever registered");
|
|
}
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
throw new IllegalStateException("All callbacks are unregistered");
|
|
}
|
|
}
|
|
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()) {
|
|
try {
|
|
service.startSearchingForSources(filters);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Stops an ongoing search for nearby Broadcast Sources.
|
|
*
|
|
* <p>On success, {@link Callback#onSearchStopped(int)} will be called with reason code {@link
|
|
* BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}. On failure, {@link
|
|
* Callback#onSearchStopFailed(int)} will be called with reason code
|
|
*
|
|
* @throws IllegalStateException if callback was not registered
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void stopSearchingForSources() {
|
|
log("stopSearchingForSources:");
|
|
if (mCallback == null) {
|
|
throw new IllegalStateException("No callback was ever registered");
|
|
}
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
throw new IllegalStateException("All callbacks are unregistered");
|
|
}
|
|
}
|
|
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()) {
|
|
try {
|
|
service.stopSearchingForSources();
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return true if a search has been started by this application.
|
|
*
|
|
* @return true if a search has been started by this application
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public boolean isSearchInProgress() {
|
|
log("stopSearchingForSources:");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final boolean defaultValue = false;
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()) {
|
|
try {
|
|
return service.isSearchInProgress();
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Add a Broadcast Source to the Broadcast Sink.
|
|
*
|
|
* <p>Caller can modify <var>sourceMetadata</var> before using it in this method to set a
|
|
* Broadcast Code, to select a different Broadcast Channel in a Broadcast Source such as channel
|
|
* with a different language, and so on. What can be modified is listed in the documentation of
|
|
* {@link #modifySource(BluetoothDevice, int, BluetoothLeBroadcastMetadata)} and can also be
|
|
* modified after a source is added.
|
|
*
|
|
* <p>On success, {@link Callback#onSourceAdded(BluetoothDevice, int, int)} will be invoked with
|
|
* a <var>sourceID</var> assigned by the Broadcast Sink with reason code {@link
|
|
* BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}. However, this callback only indicates that
|
|
* the Broadcast Sink has allocated resource to receive audio from the Broadcast Source, and
|
|
* audio stream may not have started. The caller should then wait for {@link
|
|
* Callback#onReceiveStateChanged(BluetoothDevice, int, BluetoothLeBroadcastReceiveState)}
|
|
* callback to monitor the encryption and audio sync state.
|
|
*
|
|
* <p>Note that wrong broadcast code will not prevent the source from being added to the
|
|
* Broadcast Sink. Caller should modify the current source to correct the broadcast code.
|
|
*
|
|
* <p>On failure, {@link Callback#onSourceAddFailed(BluetoothDevice,
|
|
* BluetoothLeBroadcastMetadata, int)} will be invoked with the same <var>source</var> metadata
|
|
* and reason code
|
|
*
|
|
* <p>When too many sources was added to Broadcast sink, error {@link
|
|
* BluetoothStatusCodes#ERROR_REMOTE_NOT_ENOUGH_RESOURCES} will be delivered. In this case,
|
|
* check the capacity of Broadcast sink via {@link #getMaximumSourceCapacity(BluetoothDevice)}
|
|
* and the current list of sources via {@link #getAllSources(BluetoothDevice)}.
|
|
*
|
|
* <p>Some sources might be added by other Broadcast Assistants and hence was not in {@link
|
|
* Callback#onSourceAdded(BluetoothDevice, int, int)} callback, but will be updated via {@link
|
|
* Callback#onReceiveStateChanged(BluetoothDevice, int, BluetoothLeBroadcastReceiveState)}
|
|
*
|
|
* <p>If there are multiple members in the coordinated set the sink belongs to, and isGroupOp is
|
|
* set to true, the Broadcast Source will be added to each sink in the coordinated set and a
|
|
* separate {@link Callback#onSourceAdded} callback will be invoked for each member of the
|
|
* coordinated set.
|
|
*
|
|
* <p>The <var>isGroupOp</var> option is sticky. This means that subsequent operations using
|
|
* {@link #modifySource(BluetoothDevice, int, BluetoothLeBroadcastMetadata)} and {@link
|
|
* #removeSource(BluetoothDevice, int)} will act on all devices in the same coordinated set for
|
|
* the <var>sink</var> and <var>sourceID</var> pair until the <var>sourceId</var> is removed
|
|
* from the <var>sink</var> by any Broadcast role (could be another remote device).
|
|
*
|
|
* <p>When <var>isGroupOp</var> is true, if one Broadcast Sink in a coordinated set disconnects
|
|
* from this Broadcast Assistant or lost the Broadcast Source, this Broadcast Assistant will try
|
|
* to add it back automatically to make sure the whole coordinated set is in the same state.
|
|
*
|
|
* @param sink Broadcast Sink to which the Broadcast Source should be added
|
|
* @param sourceMetadata Broadcast Source metadata to be added to the Broadcast Sink
|
|
* @param isGroupOp {@code true} if Application wants to perform this operation for all
|
|
* coordinated set members throughout this session. Otherwise, caller would have to add,
|
|
* modify, and remove individual set members.
|
|
* @throws NullPointerException if <var>sink</var> or <var>source</var> is null
|
|
* @throws IllegalStateException if callback was not registered
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void addSource(
|
|
@NonNull BluetoothDevice sink,
|
|
@NonNull BluetoothLeBroadcastMetadata sourceMetadata,
|
|
boolean isGroupOp) {
|
|
log("addBroadcastSource: " + sourceMetadata + " on " + sink);
|
|
Objects.requireNonNull(sink, "sink cannot be null");
|
|
Objects.requireNonNull(sourceMetadata, "sourceMetadata cannot be null");
|
|
if (mCallback == null) {
|
|
throw new IllegalStateException("No callback was ever registered");
|
|
}
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
throw new IllegalStateException("All callbacks are unregistered");
|
|
}
|
|
}
|
|
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled() && isValidDevice(sink)) {
|
|
try {
|
|
service.addSource(sink, sourceMetadata, isGroupOp);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Modify the Broadcast Source information on a Broadcast Sink.
|
|
*
|
|
* <p>One can modify {@link BluetoothLeBroadcastMetadata#getBroadcastCode()} if {@link
|
|
* BluetoothLeBroadcastReceiveState#getBigEncryptionState()} returns {@link
|
|
* BluetoothLeBroadcastReceiveState#BIG_ENCRYPTION_STATE_BAD_CODE} or {@link
|
|
* BluetoothLeBroadcastReceiveState#BIG_ENCRYPTION_STATE_CODE_REQUIRED}
|
|
*
|
|
* <p>One can modify {@link BluetoothLeBroadcastMetadata#getPaSyncInterval()} if the Broadcast
|
|
* Assistant received updated information.
|
|
*
|
|
* <p>One can modify {@link BluetoothLeBroadcastChannel#isSelected()} to select different
|
|
* broadcast channel to listen to (one per {@link BluetoothLeBroadcastSubgroup} or set {@link
|
|
* BluetoothLeBroadcastSubgroup#isNoChannelPreference()} to leave the choice to the Broadcast
|
|
* Sink.
|
|
*
|
|
* <p>One can modify {@link BluetoothLeBroadcastSubgroup#getContentMetadata()} if the subgroup
|
|
* metadata changes and the Broadcast Sink need help updating the metadata from Broadcast
|
|
* Assistant.
|
|
*
|
|
* <p>Each of the above modifications can be accepted or rejected by the Broadcast Assistant
|
|
* implement and/or the Broadcast Sink.
|
|
*
|
|
* <p>On success, {@link Callback#onSourceModified(BluetoothDevice, int, int)} will be invoked
|
|
* with reason code {@link BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}.
|
|
*
|
|
* <p>On failure, {@link Callback#onSourceModifyFailed(BluetoothDevice, int, int)} will be
|
|
* invoked with reason code.
|
|
*
|
|
* <p>If there are multiple members in the coordinated set the sink belongs to, and isGroupOp is
|
|
* set to true during {@link #addSource(BluetoothDevice, BluetoothLeBroadcastMetadata,
|
|
* boolean)}, the source will be modified on each sink in the coordinated set and a separate
|
|
* {@link Callback#onSourceModified(BluetoothDevice, int, int)} callback will be invoked for
|
|
* each member of the coordinated set.
|
|
*
|
|
* @param sink Broadcast Sink to which the Broadcast Source should be updated
|
|
* @param sourceId source ID as delivered in {@link Callback#onSourceAdded(BluetoothDevice, int,
|
|
* int)}
|
|
* @param updatedMetadata updated Broadcast Source metadata to be updated on the Broadcast Sink
|
|
* @throws IllegalStateException if callback was not registered
|
|
* @throws NullPointerException if <var>sink</var> or <var>updatedMetadata</var> is null
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void modifySource(
|
|
@NonNull BluetoothDevice sink,
|
|
int sourceId,
|
|
@NonNull BluetoothLeBroadcastMetadata updatedMetadata) {
|
|
log("updateBroadcastSource: " + updatedMetadata + " on " + sink);
|
|
Objects.requireNonNull(sink, "sink cannot be null");
|
|
Objects.requireNonNull(updatedMetadata, "updatedMetadata cannot be null");
|
|
if (mCallback == null) {
|
|
throw new IllegalStateException("No callback was ever registered");
|
|
}
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
throw new IllegalStateException("All callbacks are unregistered");
|
|
}
|
|
}
|
|
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled() && isValidDevice(sink)) {
|
|
try {
|
|
service.modifySource(sink, sourceId, updatedMetadata);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes the Broadcast Source from a Broadcast Sink.
|
|
*
|
|
* <p>On success, {@link Callback#onSourceRemoved(BluetoothDevice, int, int)} will be invoked
|
|
* with reason code {@link BluetoothStatusCodes#REASON_LOCAL_APP_REQUEST}.
|
|
*
|
|
* <p>On failure, {@link Callback#onSourceRemoveFailed(BluetoothDevice, int, int)} will be
|
|
* invoked with reason code.
|
|
*
|
|
* <p>If there are multiple members in the coordinated set the sink belongs to, and isGroupOp is
|
|
* set to true during {@link #addSource(BluetoothDevice, BluetoothLeBroadcastMetadata,
|
|
* boolean)}, the source will be removed from each sink in the coordinated set and a separate
|
|
* {@link Callback#onSourceRemoved(BluetoothDevice, int, int)} callback will be invoked for each
|
|
* member of the coordinated set.
|
|
*
|
|
* @param sink Broadcast Sink from which a Broadcast Source should be removed
|
|
* @param sourceId source ID as delivered in {@link Callback#onSourceAdded(BluetoothDevice, int,
|
|
* int)}
|
|
* @throws NullPointerException when the <var>sink</var> is null
|
|
* @throws IllegalStateException if callback was not registered
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
public void removeSource(@NonNull BluetoothDevice sink, int sourceId) {
|
|
log("removeBroadcastSource: " + sourceId + " from " + sink);
|
|
Objects.requireNonNull(sink, "sink cannot be null");
|
|
if (mCallback == null) {
|
|
throw new IllegalStateException("No callback was ever registered");
|
|
}
|
|
|
|
synchronized (mCallbackExecutorMap) {
|
|
if (mCallbackExecutorMap.isEmpty()) {
|
|
throw new IllegalStateException("All callbacks are unregistered");
|
|
}
|
|
}
|
|
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled() && isValidDevice(sink)) {
|
|
try {
|
|
service.removeSource(sink, sourceId);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get information about all Broadcast Sources that a Broadcast Sink knows about.
|
|
*
|
|
* @param sink Broadcast Sink from which to get all Broadcast Sources
|
|
* @return the list of Broadcast Receive State {@link BluetoothLeBroadcastReceiveState} stored
|
|
* in the Broadcast Sink
|
|
* @throws NullPointerException when <var>sink</var> is null
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
@RequiresBluetoothConnectPermission
|
|
@RequiresPermission(
|
|
allOf = {
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
|
})
|
|
@NonNull
|
|
public List<BluetoothLeBroadcastReceiveState> getAllSources(@NonNull BluetoothDevice sink) {
|
|
log("getAllSources()");
|
|
Objects.requireNonNull(sink, "sink cannot be null");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final List<BluetoothLeBroadcastReceiveState> defaultValue =
|
|
new ArrayList<BluetoothLeBroadcastReceiveState>();
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled()) {
|
|
try {
|
|
return service.getAllSources(sink);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
/**
|
|
* Get maximum number of sources that can be added to this Broadcast Sink.
|
|
*
|
|
* @param sink Broadcast Sink device
|
|
* @return maximum number of sources that can be added to this Broadcast Sink
|
|
* @throws NullPointerException when <var>sink</var> is null
|
|
* @hide
|
|
*/
|
|
@SystemApi
|
|
public int getMaximumSourceCapacity(@NonNull BluetoothDevice sink) {
|
|
Objects.requireNonNull(sink, "sink cannot be null");
|
|
final IBluetoothLeBroadcastAssistant service = getService();
|
|
final int defaultValue = 0;
|
|
if (service == null) {
|
|
Log.w(TAG, "Proxy not attached to service");
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
|
} else if (mBluetoothAdapter.isEnabled() && isValidDevice(sink)) {
|
|
try {
|
|
return service.getMaximumSourceCapacity(sink);
|
|
} catch (RemoteException e) {
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
|
}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
private static void log(@NonNull String msg) {
|
|
if (DBG) {
|
|
Log.d(TAG, msg);
|
|
}
|
|
}
|
|
|
|
private static boolean isValidDevice(@Nullable BluetoothDevice device) {
|
|
return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress());
|
|
}
|
|
}
|