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Diffstat (limited to 'framework/java/android/bluetooth/BluetoothLeAudio.java')
| -rw-r--r-- | framework/java/android/bluetooth/BluetoothLeAudio.java | 829 |
1 files changed, 829 insertions, 0 deletions
diff --git a/framework/java/android/bluetooth/BluetoothLeAudio.java b/framework/java/android/bluetooth/BluetoothLeAudio.java new file mode 100644 index 0000000000..15db686b3b --- /dev/null +++ b/framework/java/android/bluetooth/BluetoothLeAudio.java @@ -0,0 +1,829 @@ +/* + * Copyright 2020 HIMSA II K/S - www.himsa.com. + * Represented by EHIMA - www.ehima.com + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package android.bluetooth; + +import static android.bluetooth.BluetoothUtils.getSyncTimeout; + +import android.Manifest; +import android.annotation.NonNull; +import android.annotation.Nullable; +import android.annotation.RequiresPermission; +import android.annotation.SdkConstant; +import android.annotation.SdkConstant.SdkConstantType; +import android.bluetooth.annotations.RequiresBluetoothConnectPermission; +import android.bluetooth.annotations.RequiresLegacyBluetoothPermission; +import android.content.AttributionSource; +import android.content.Context; +import android.os.IBinder; +import android.os.RemoteException; +import android.util.CloseGuard; +import android.util.Log; + +import com.android.modules.utils.SynchronousResultReceiver; + +import java.util.ArrayList; +import java.util.List; +import java.util.concurrent.TimeoutException; + +/** + * This class provides the public APIs to control the LeAudio profile. + * + * <p>BluetoothLeAudio is a proxy object for controlling the Bluetooth LE Audio + * Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get + * the BluetoothLeAudio proxy object. + * + * <p> Android only supports one set of connected Bluetooth LeAudio device at a time. Each + * method is protected with its appropriate permission. + */ +public final class BluetoothLeAudio implements BluetoothProfile, AutoCloseable { + private static final String TAG = "BluetoothLeAudio"; + private static final boolean DBG = false; + private static final boolean VDBG = false; + + private CloseGuard mCloseGuard; + + /** + * Intent used to broadcast the change in connection state of the LeAudio + * profile. Please note that in the binaural case, there will be two different LE devices for + * the left and right side and each device will have their own connection state changes. + * + * <p>This intent will have 3 extras: + * <ul> + * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> + * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.</li> + * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> + * </ul> + * + * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of + * {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, + * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. + */ + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) + public static final String ACTION_LE_AUDIO_CONNECTION_STATE_CHANGED = + "android.bluetooth.action.LE_AUDIO_CONNECTION_STATE_CHANGED"; + + /** + * Intent used to broadcast the selection of a connected device as active. + * + * <p>This intent will have one extra: + * <ul> + * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. It can + * be null if no device is active. </li> + * </ul> + * + * @hide + */ + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) + public static final String ACTION_LE_AUDIO_ACTIVE_DEVICE_CHANGED = + "android.bluetooth.action.LE_AUDIO_ACTIVE_DEVICE_CHANGED"; + + /** + * Intent used to broadcast group node status information. + * + * <p>This intent will have 3 extra: + * <ul> + * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. It can + * be null if no device is active. </li> + * <li> {@link #EXTRA_LE_AUDIO_GROUP_ID} - Group id. </li> + * <li> {@link #EXTRA_LE_AUDIO_GROUP_NODE_STATUS} - Group node status. </li> + * </ul> + * + * @hide + */ + @RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED) + @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) + public static final String ACTION_LE_AUDIO_GROUP_NODE_STATUS_CHANGED = + "android.bluetooth.action.LE_AUDIO_GROUP_NODE_STATUS_CHANGED"; + + + /** + * Intent used to broadcast group status information. + * + * <p>This intent will have 4 extra: + * <ul> + * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. It can + * be null if no device is active. </li> + * <li> {@link #EXTRA_LE_AUDIO_GROUP_ID} - Group id. </li> + * <li> {@link #EXTRA_LE_AUDIO_GROUP_STATUS} - Group status. </li> + * </ul> + * + * @hide + */ + @RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED) + @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) + public static final String ACTION_LE_AUDIO_GROUP_STATUS_CHANGED = + "android.bluetooth.action.LE_AUDIO_GROUP_STATUS_CHANGED"; + + /** + * Intent used to broadcast group audio configuration changed information. + * + * <p>This intent will have 5 extra: + * <ul> + * <li> {@link #EXTRA_LE_AUDIO_GROUP_ID} - Group id. </li> + * <li> {@link #EXTRA_LE_AUDIO_DIRECTION} - Direction as bit mask. </li> + * <li> {@link #EXTRA_LE_AUDIO_SINK_LOCATION} - Sink location as per Bluetooth Assigned + * Numbers </li> + * <li> {@link #EXTRA_LE_AUDIO_SOURCE_LOCATION} - Source location as per Bluetooth Assigned + * Numbers </li> + * <li> {@link #EXTRA_LE_AUDIO_AVAILABLE_CONTEXTS} - Available contexts for group as per + * Bluetooth Assigned Numbers </li> + * </ul> + * + * @hide + */ + @RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED) + @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) + public static final String ACTION_LE_AUDIO_CONF_CHANGED = + "android.bluetooth.action.LE_AUDIO_CONF_CHANGED"; + + /** + * Indicates unspecified audio content. + * @hide + */ + public static final int CONTEXT_TYPE_UNSPECIFIED = 0x0001; + + /** + * Indicates conversation between humans as, for example, in telephony or video calls. + * @hide + */ + public static final int CONTEXT_TYPE_COMMUNICATION = 0x0002; + + /** + * Indicates media as, for example, in music, public radio, podcast or video soundtrack. + * @hide + */ + public static final int CONTEXT_TYPE_MEDIA = 0x0004; + + /** + * Indicates instructional audio as, for example, in navigation, traffic announcements + * or user guidance. + * @hide + */ + public static final int CONTEXT_TYPE_INSTRUCTIONAL = 0x0008; + + /** + * Indicates attention seeking audio as, for example, in beeps signalling arrival of a message + * or keyboard clicks. + * @hide + */ + public static final int CONTEXT_TYPE_ATTENTION_SEEKING = 0x0010; + + /** + * Indicates immediate alerts as, for example, in a low battery alarm, timer expiry or alarm + * clock. + * @hide + */ + public static final int CONTEXT_TYPE_IMMEDIATE_ALERT = 0x0020; + + /** + * Indicates man machine communication as, for example, with voice recognition or virtual + * assistant. + * @hide + */ + public static final int CONTEXT_TYPE_MAN_MACHINE = 0x0040; + + /** + * Indicates emergency alerts as, for example, with fire alarms or other urgent alerts. + * @hide + */ + public static final int CONTEXT_TYPE_EMERGENCY_ALERT = 0x0080; + + /** + * Indicates ringtone as in a call alert. + * @hide + */ + public static final int CONTEXT_TYPE_RINGTONE = 0x0100; + + /** + * Indicates audio associated with a television program and/or with metadata conforming to the + * Bluetooth Broadcast TV profile. + * @hide + */ + public static final int CONTEXT_TYPE_TV = 0x0200; + + /** + * Indicates audio associated with a low latency live audio stream. + * + * @hide + */ + public static final int CONTEXT_TYPE_LIVE = 0x0400; + + /** + * Indicates audio associated with a video game stream. + * @hide + */ + public static final int CONTEXT_TYPE_GAME = 0x0800; + + /** + * This represents an invalid group ID. + * + * @hide + */ + public static final int GROUP_ID_INVALID = IBluetoothLeAudio.LE_AUDIO_GROUP_ID_INVALID; + + /** + * Contains group id. + * @hide + */ + public static final String EXTRA_LE_AUDIO_GROUP_ID = + "android.bluetooth.extra.LE_AUDIO_GROUP_ID"; + + /** + * Contains group node status, can be any of + * <p> + * <ul> + * <li> {@link #GROUP_NODE_ADDED} </li> + * <li> {@link #GROUP_NODE_REMOVED} </li> + * </ul> + * <p> + * @hide + */ + public static final String EXTRA_LE_AUDIO_GROUP_NODE_STATUS = + "android.bluetooth.extra.LE_AUDIO_GROUP_NODE_STATUS"; + + /** + * Contains group status, can be any of + * + * <p> + * <ul> + * <li> {@link #GROUP_STATUS_ACTIVE} </li> + * <li> {@link #GROUP_STATUS_INACTIVE} </li> + * </ul> + * <p> + * @hide + */ + public static final String EXTRA_LE_AUDIO_GROUP_STATUS = + "android.bluetooth.extra.LE_AUDIO_GROUP_STATUS"; + + /** + * Contains bit mask for direction, bit 0 set when Sink, bit 1 set when Source. + * @hide + */ + public static final String EXTRA_LE_AUDIO_DIRECTION = + "android.bluetooth.extra.LE_AUDIO_DIRECTION"; + + /** + * Contains source location as per Bluetooth Assigned Numbers + * @hide + */ + public static final String EXTRA_LE_AUDIO_SOURCE_LOCATION = + "android.bluetooth.extra.LE_AUDIO_SOURCE_LOCATION"; + + /** + * Contains sink location as per Bluetooth Assigned Numbers + * @hide + */ + public static final String EXTRA_LE_AUDIO_SINK_LOCATION = + "android.bluetooth.extra.LE_AUDIO_SINK_LOCATION"; + + /** + * Contains available context types for group as per Bluetooth Assigned Numbers + * @hide + */ + public static final String EXTRA_LE_AUDIO_AVAILABLE_CONTEXTS = + "android.bluetooth.extra.LE_AUDIO_AVAILABLE_CONTEXTS"; + + private final BluetoothAdapter mAdapter; + private final AttributionSource mAttributionSource; + /** + * Indicating that group is Active ( Audio device is available ) + * @hide + */ + public static final int GROUP_STATUS_ACTIVE = IBluetoothLeAudio.GROUP_STATUS_ACTIVE; + + /** + * Indicating that group is Inactive ( Audio device is not available ) + * @hide + */ + public static final int GROUP_STATUS_INACTIVE = IBluetoothLeAudio.GROUP_STATUS_INACTIVE; + + /** + * Indicating that node has been added to the group. + * @hide + */ + public static final int GROUP_NODE_ADDED = IBluetoothLeAudio.GROUP_NODE_ADDED; + + /** + * Indicating that node has been removed from the group. + * @hide + */ + public static final int GROUP_NODE_REMOVED = IBluetoothLeAudio.GROUP_NODE_REMOVED; + + private final BluetoothProfileConnector<IBluetoothLeAudio> mProfileConnector = + new BluetoothProfileConnector(this, BluetoothProfile.LE_AUDIO, "BluetoothLeAudio", + IBluetoothLeAudio.class.getName()) { + @Override + public IBluetoothLeAudio getServiceInterface(IBinder service) { + return IBluetoothLeAudio.Stub.asInterface(service); + } + }; + + /** + * Create a BluetoothLeAudio proxy object for interacting with the local + * Bluetooth LeAudio service. + */ + /* package */ BluetoothLeAudio(Context context, ServiceListener listener, + BluetoothAdapter adapter) { + mAdapter = adapter; + mAttributionSource = adapter.getAttributionSource(); + mProfileConnector.connect(context, listener); + mCloseGuard = new CloseGuard(); + mCloseGuard.open("close"); + } + + /** + * @hide + */ + public void close() { + mProfileConnector.disconnect(); + } + + private IBluetoothLeAudio getService() { + return mProfileConnector.getService(); + } + + protected void finalize() { + if (mCloseGuard != null) { + mCloseGuard.warnIfOpen(); + } + close(); + } + + /** + * Initiate connection to a profile of the remote bluetooth device. + * + * <p> This API returns false in scenarios like the profile on the + * device is already connected or Bluetooth is not turned on. + * When this API returns true, it is guaranteed that + * connection state intent for the profile will be broadcasted with + * the state. Users can get the connection state of the profile + * from this intent. + * + * + * @param device Remote Bluetooth Device + * @return false on immediate error, true otherwise + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public boolean connect(@Nullable BluetoothDevice device) { + if (DBG) log("connect(" + device + ")"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver(); + service.connect(device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * Initiate disconnection from a profile + * + * <p> This API will return false in scenarios like the profile on the + * Bluetooth device is not in connected state etc. When this API returns, + * true, it is guaranteed that the connection state change + * intent will be broadcasted with the state. Users can get the + * disconnection state of the profile from this intent. + * + * <p> If the disconnection is initiated by a remote device, the state + * will transition from {@link #STATE_CONNECTED} to + * {@link #STATE_DISCONNECTED}. If the disconnect is initiated by the + * host (local) device the state will transition from + * {@link #STATE_CONNECTED} to state {@link #STATE_DISCONNECTING} to + * state {@link #STATE_DISCONNECTED}. The transition to + * {@link #STATE_DISCONNECTING} can be used to distinguish between the + * two scenarios. + * + * + * @param device Remote Bluetooth Device + * @return false on immediate error, true otherwise + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public boolean disconnect(@Nullable BluetoothDevice device) { + if (DBG) log("disconnect(" + device + ")"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver(); + service.disconnect(device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * {@inheritDoc} + */ + @Override + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public @NonNull List<BluetoothDevice> getConnectedDevices() { + if (VDBG) log("getConnectedDevices()"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver<List<BluetoothDevice>> recv = + new SynchronousResultReceiver(); + service.getConnectedDevices(mAttributionSource, recv); + return Attributable.setAttributionSource( + recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue), + mAttributionSource); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * {@inheritDoc} + */ + @Override + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public @NonNull List<BluetoothDevice> getDevicesMatchingConnectionStates( + @NonNull int[] states) { + if (VDBG) log("getDevicesMatchingStates()"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver<List<BluetoothDevice>> recv = + new SynchronousResultReceiver(); + service.getDevicesMatchingConnectionStates(states, mAttributionSource, recv); + return Attributable.setAttributionSource( + recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue), + mAttributionSource); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * {@inheritDoc} + */ + @Override + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public @BtProfileState int getConnectionState(@NonNull BluetoothDevice device) { + if (VDBG) log("getState(" + device + ")"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver(); + service.getConnectionState(device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * Select a connected device as active. + * + * The active device selection is per profile. An active device's + * purpose is profile-specific. For example, LeAudio audio + * streaming is to the active LeAudio device. If a remote device + * is not connected, it cannot be selected as active. + * + * <p> This API returns false in scenarios like the profile on the + * device is not connected or Bluetooth is not turned on. + * When this API returns true, it is guaranteed that the + * {@link #ACTION_LE_AUDIO_ACTIVE_DEVICE_CHANGED} intent will be broadcasted + * with the active device. + * + * + * @param device the remote Bluetooth device. Could be null to clear + * the active device and stop streaming audio to a Bluetooth device. + * @return false on immediate error, true otherwise + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public boolean setActiveDevice(@Nullable BluetoothDevice device) { + if (DBG) log("setActiveDevice(" + device + ")"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled() && ((device == null) || isValidDevice(device))) { + try { + final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver(); + service.setActiveDevice(device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * Get the connected LeAudio devices that are active + * + * @return the list of active devices. Returns empty list on error. + * @hide + */ + @NonNull + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public List<BluetoothDevice> getActiveDevices() { + if (VDBG) log("getActiveDevice()"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver<List<BluetoothDevice>> recv = + new SynchronousResultReceiver(); + service.getActiveDevices(mAttributionSource, recv); + return Attributable.setAttributionSource( + recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue), + mAttributionSource); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * Get device group id. Devices with same group id belong to same group (i.e left and right + * earbud) + * @param device LE Audio capable device + * @return group id that this device currently belongs to + */ + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public int getGroupId(@NonNull BluetoothDevice device) { + if (VDBG) log("getGroupId()"); + final IBluetoothLeAudio service = getService(); + final int defaultValue = GROUP_ID_INVALID; + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver(); + service.getGroupId(device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * Set volume for the streaming devices + * + * @param volume volume to set + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf={android.Manifest.permission.BLUETOOTH_CONNECT, android.Manifest.permission.BLUETOOTH_PRIVILEGED}) + public void setVolume(int volume) { + if (VDBG) log("setVolume(vol: " + volume + " )"); + final IBluetoothLeAudio service = getService(); + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver recv = new SynchronousResultReceiver(); + service.setVolume(volume, mAttributionSource, recv); + recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + } + + /** + * Add device to the given group. + * @param group_id group ID the device is being added to + * @param device the active device + * @return true on success, otherwise false + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED + }) + public boolean groupAddNode(int group_id, @NonNull BluetoothDevice device) { + if (VDBG) log("groupAddNode()"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver(); + service.groupAddNode(group_id, device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + /** + * Remove device from a given group. + * @param group_id group ID the device is being removed from + * @param device the active device + * @return true on success, otherwise false + * + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED + }) + public boolean groupRemoveNode(int group_id, @NonNull BluetoothDevice device) { + if (VDBG) log("groupRemoveNode()"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled()) { + try { + final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver(); + service.groupRemoveNode(group_id, device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException 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 + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public boolean setConnectionPolicy(@NonNull BluetoothDevice device, + @ConnectionPolicy int connectionPolicy) { + if (DBG) log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled() && isValidDevice(device) + && (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN + || connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) { + try { + final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver(); + service.setConnectionPolicy(device, connectionPolicy, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException 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 + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public @ConnectionPolicy int getConnectionPolicy(@Nullable BluetoothDevice device) { + if (VDBG) log("getConnectionPolicy(" + device + ")"); + final IBluetoothLeAudio 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 (mAdapter.isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver(); + service.getConnectionPolicy(device, mAttributionSource, recv); + return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue); + } catch (RemoteException | TimeoutException e) { + Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); + } + } + return defaultValue; + } + + + /** + * Helper for converting a state to a string. + * + * For debug use only - strings are not internationalized. + * + * @hide + */ + public static String stateToString(int state) { + switch (state) { + case STATE_DISCONNECTED: + return "disconnected"; + case STATE_CONNECTING: + return "connecting"; + case STATE_CONNECTED: + return "connected"; + case STATE_DISCONNECTING: + return "disconnecting"; + default: + return "<unknown state " + state + ">"; + } + } + + private boolean isValidDevice(@Nullable BluetoothDevice device) { + if (device == null) return false; + + if (BluetoothAdapter.checkBluetoothAddress(device.getAddress())) return true; + return false; + } + + private static void log(String msg) { + Log.d(TAG, msg); + } +} |