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Diffstat (limited to 'framework/java/android/bluetooth/BluetoothHearingAid.java')
| -rw-r--r-- | framework/java/android/bluetooth/BluetoothHearingAid.java | 691 |
1 files changed, 691 insertions, 0 deletions
diff --git a/framework/java/android/bluetooth/BluetoothHearingAid.java b/framework/java/android/bluetooth/BluetoothHearingAid.java new file mode 100644 index 0000000000..339a75fe0f --- /dev/null +++ b/framework/java/android/bluetooth/BluetoothHearingAid.java @@ -0,0 +1,691 @@ +/* + * Copyright 2018 The Android Open Source Project + * + * 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.annotation.NonNull; +import android.annotation.Nullable; +import android.annotation.RequiresPermission; +import android.annotation.SdkConstant; +import android.annotation.SdkConstant.SdkConstantType; +import android.annotation.SystemApi; +import android.bluetooth.annotations.RequiresBluetoothConnectPermission; +import android.bluetooth.annotations.RequiresLegacyBluetoothAdminPermission; +import android.bluetooth.annotations.RequiresLegacyBluetoothPermission; +import android.compat.annotation.UnsupportedAppUsage; +import android.content.AttributionSource; +import android.content.Context; +import android.os.Build; +import android.os.IBinder; +import android.os.RemoteException; +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 Hearing Aid profile. + * + * <p>BluetoothHearingAid is a proxy object for controlling the Bluetooth Hearing Aid + * Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get + * the BluetoothHearingAid proxy object. + * + * <p> Android only supports one set of connected Bluetooth Hearing Aid device at a time. Each + * method is protected with its appropriate permission. + */ +public final class BluetoothHearingAid implements BluetoothProfile { + private static final String TAG = "BluetoothHearingAid"; + private static final boolean DBG = true; + private static final boolean VDBG = false; + + /** + * Intent used to broadcast the change in connection state of the Hearing Aid + * 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.S + * + * <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_CONNECTION_STATE_CHANGED = + "android.bluetooth.hearingaid.profile.action.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) + @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) + @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) + public static final String ACTION_ACTIVE_DEVICE_CHANGED = + "android.bluetooth.hearingaid.profile.action.ACTIVE_DEVICE_CHANGED"; + + /** + * This device represents Left Hearing Aid. + * + * @hide + */ + public static final int SIDE_LEFT = IBluetoothHearingAid.SIDE_LEFT; + + /** + * This device represents Right Hearing Aid. + * + * @hide + */ + public static final int SIDE_RIGHT = IBluetoothHearingAid.SIDE_RIGHT; + + /** + * This device is Monaural. + * + * @hide + */ + public static final int MODE_MONAURAL = IBluetoothHearingAid.MODE_MONAURAL; + + /** + * This device is Binaural (should receive only left or right audio). + * + * @hide + */ + public static final int MODE_BINAURAL = IBluetoothHearingAid.MODE_BINAURAL; + + /** + * Indicates the HiSyncID could not be read and is unavailable. + * + * @hide + */ + public static final long HI_SYNC_ID_INVALID = IBluetoothHearingAid.HI_SYNC_ID_INVALID; + + private final BluetoothAdapter mAdapter; + private final AttributionSource mAttributionSource; + private final BluetoothProfileConnector<IBluetoothHearingAid> mProfileConnector = + new BluetoothProfileConnector(this, BluetoothProfile.HEARING_AID, + "BluetoothHearingAid", IBluetoothHearingAid.class.getName()) { + @Override + public IBluetoothHearingAid getServiceInterface(IBinder service) { + return IBluetoothHearingAid.Stub.asInterface(service); + } + }; + + /** + * Create a BluetoothHearingAid proxy object for interacting with the local + * Bluetooth Hearing Aid service. + */ + /* package */ BluetoothHearingAid(Context context, ServiceListener listener, + BluetoothAdapter adapter) { + mAdapter = adapter; + mAttributionSource = adapter.getAttributionSource(); + mProfileConnector.connect(context, listener); + } + + /*package*/ void close() { + mProfileConnector.disconnect(); + } + + private IBluetoothHearingAid getService() { + return mProfileConnector.getService(); + } + + /** + * 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(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public boolean connect(BluetoothDevice device) { + if (DBG) log("connect(" + device + ")"); + final IBluetoothHearingAid 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 (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(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public boolean disconnect(BluetoothDevice device) { + if (DBG) log("disconnect(" + device + ")"); + final IBluetoothHearingAid 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 (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 IBluetoothHearingAid 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 (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 IBluetoothHearingAid 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 (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 + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public @BluetoothProfile.BtProfileState int getConnectionState( + @NonNull BluetoothDevice device) { + if (VDBG) log("getState(" + device + ")"); + final IBluetoothHearingAid 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 (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, Hearing Aid audio + * streaming is to the active Hearing Aid 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_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 + */ + @RequiresLegacyBluetoothAdminPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) + public boolean setActiveDevice(@Nullable BluetoothDevice device) { + if (DBG) log("setActiveDevice(" + device + ")"); + final IBluetoothHearingAid 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 (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 physical Hearing Aid devices that are active + * + * @return the list of active devices. The first element is the left active + * device; the second element is the right active device. If either or both side + * is not active, it will be null on that position. Returns empty list on error. + * @hide + */ + @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public @NonNull List<BluetoothDevice> getActiveDevices() { + if (VDBG) log("getActiveDevices()"); + final IBluetoothHearingAid service = getService(); + final List<BluetoothDevice> defaultValue = new ArrayList<>(); + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (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; + } + + /** + * Set priority of the profile + * + * <p> The device should already be paired. + * Priority can be one of {@link #PRIORITY_ON} or {@link #PRIORITY_OFF}, + * + * @param device Paired bluetooth device + * @param priority + * @return true if priority is set, false on error + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public boolean setPriority(BluetoothDevice device, int priority) { + if (DBG) log("setPriority(" + device + ", " + priority + ")"); + return setConnectionPolicy(device, BluetoothAdapter.priorityToConnectionPolicy(priority)); + } + + /** + * 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 + */ + @SystemApi + @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 + ")"); + verifyDeviceNotNull(device, "setConnectionPolicy"); + final IBluetoothHearingAid 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 (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 priority of the profile. + * + * <p> The priority can be any of: + * {@link #PRIORITY_OFF}, {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED} + * + * @param device Bluetooth device + * @return priority of the device + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public int getPriority(BluetoothDevice device) { + if (VDBG) log("getPriority(" + device + ")"); + return BluetoothAdapter.connectionPolicyToPriority(getConnectionPolicy(device)); + } + + /** + * 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 + */ + @SystemApi + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public @ConnectionPolicy int getConnectionPolicy(@NonNull BluetoothDevice device) { + if (VDBG) log("getConnectionPolicy(" + device + ")"); + verifyDeviceNotNull(device, "getConnectionPolicy"); + final IBluetoothHearingAid 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 (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 + ">"; + } + } + + /** + * Tells remote device to set an absolute volume. + * + * @param volume Absolute volume to be set on remote + * @hide + */ + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public void setVolume(int volume) { + if (DBG) Log.d(TAG, "setVolume(" + volume + ")"); + final IBluetoothHearingAid service = getService(); + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (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())); + } + } + } + + /** + * Get the HiSyncId (unique hearing aid device identifier) of the device. + * + * <a href=https://source.android.com/devices/bluetooth/asha#hisyncid>HiSyncId documentation + * can be found here</a> + * + * @param device Bluetooth device + * @return the HiSyncId of the device + * @hide + */ + @SystemApi + @RequiresBluetoothConnectPermission + @RequiresPermission(allOf = { + android.Manifest.permission.BLUETOOTH_CONNECT, + android.Manifest.permission.BLUETOOTH_PRIVILEGED, + }) + public long getHiSyncId(@NonNull BluetoothDevice device) { + if (VDBG) log("getHiSyncId(" + device + ")"); + verifyDeviceNotNull(device, "getConnectionPolicy"); + final IBluetoothHearingAid service = getService(); + final long defaultValue = HI_SYNC_ID_INVALID; + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Long> recv = new SynchronousResultReceiver(); + service.getHiSyncId(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 side of the device. + * + * @param device Bluetooth device. + * @return SIDE_LEFT or SIDE_RIGHT + * @hide + */ + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public int getDeviceSide(BluetoothDevice device) { + if (VDBG) log("getDeviceSide(" + device + ")"); + final IBluetoothHearingAid service = getService(); + final int defaultValue = SIDE_LEFT; + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver(); + service.getDeviceSide(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 mode of the device. + * + * @param device Bluetooth device + * @return MODE_MONAURAL or MODE_BINAURAL + * @hide + */ + @RequiresLegacyBluetoothPermission + @RequiresBluetoothConnectPermission + @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) + public int getDeviceMode(BluetoothDevice device) { + if (VDBG) log("getDeviceMode(" + device + ")"); + final IBluetoothHearingAid service = getService(); + final int defaultValue = MODE_MONAURAL; + if (service == null) { + Log.w(TAG, "Proxy not attached to service"); + if (DBG) log(Log.getStackTraceString(new Throwable())); + } else if (isEnabled() && isValidDevice(device)) { + try { + final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver(); + service.getDeviceMode(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; + } + + private boolean isEnabled() { + if (mAdapter.getState() == BluetoothAdapter.STATE_ON) return true; + return false; + } + + private void verifyDeviceNotNull(BluetoothDevice device, String methodName) { + if (device == null) { + Log.e(TAG, methodName + ": device param is null"); + throw new IllegalArgumentException("Device cannot be null"); + } + } + + private boolean isValidDevice(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); + } +} |