| /* |
| * 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 android.annotation.IntDef; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SdkConstant; |
| import android.annotation.SdkConstant.SdkConstantType; |
| import android.annotation.SuppressLint; |
| 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.Parcel; |
| import android.os.Parcelable; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * 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 = Log.isLoggable(TAG, Log.VERBOSE); |
| |
| /** |
| * This class provides the APIs to get device's advertisement data. The advertisement data might |
| * be incomplete or not available. |
| * |
| * <p><a |
| * href=https://source.android.com/docs/core/connect/bluetooth/asha#advertisements-for-asha-gatt-service> |
| * documentation can be found here</a> |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final class AdvertisementServiceData implements Parcelable { |
| private static final String TAG = "AdvertisementData"; |
| |
| private final int mCapability; |
| private final int mTruncatedHiSyncId; |
| |
| /** |
| * Construct AdvertisementServiceData. |
| * |
| * @param capability hearing aid's capability |
| * @param truncatedHiSyncId truncated HiSyncId |
| * @hide |
| */ |
| public AdvertisementServiceData(int capability, int truncatedHiSyncId) { |
| if (DBG) { |
| Log.d(TAG, "capability:" + capability + " truncatedHiSyncId:" + truncatedHiSyncId); |
| } |
| mCapability = capability; |
| mTruncatedHiSyncId = truncatedHiSyncId; |
| } |
| |
| /** |
| * Get the mode of the device based on its advertisement data. |
| * |
| * @hide |
| */ |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_SCAN, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @SystemApi |
| @DeviceMode |
| public int getDeviceMode() { |
| if (VDBG) Log.v(TAG, "getDeviceMode()"); |
| return (mCapability >> 1) & 1; |
| } |
| |
| private AdvertisementServiceData(@NonNull Parcel in) { |
| mCapability = in.readInt(); |
| mTruncatedHiSyncId = in.readInt(); |
| } |
| |
| /** |
| * Get the side of the device based on its advertisement data. |
| * |
| * @hide |
| */ |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_SCAN, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @SystemApi |
| @DeviceSide |
| public int getDeviceSide() { |
| if (VDBG) Log.v(TAG, "getDeviceSide()"); |
| return mCapability & 1; |
| } |
| |
| /** |
| * Check if {@link BluetoothHearingAid} marks itself as CSIP supported based on its |
| * advertisement data. |
| * |
| * @return {@code true} when CSIP is supported, {@code false} otherwise |
| * @hide |
| */ |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_SCAN, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @SystemApi |
| public boolean isCsipSupported() { |
| if (VDBG) Log.v(TAG, "isCsipSupported()"); |
| return ((mCapability >> 2) & 1) != 0; |
| } |
| |
| /** |
| * Get the truncated HiSyncId of the device based on its advertisement data. |
| * |
| * @hide |
| */ |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_SCAN, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @SystemApi |
| public int getTruncatedHiSyncId() { |
| if (VDBG) Log.v(TAG, "getTruncatedHiSyncId: " + mTruncatedHiSyncId); |
| return mTruncatedHiSyncId; |
| } |
| |
| /** |
| * Check if another {@link AdvertisementServiceData} is likely a pair with current one. |
| * There is a possibility of a collision on truncated HiSyncId which leads to falsely |
| * identified as a pair. |
| * |
| * @param data another device's {@link AdvertisementServiceData} |
| * @return {@code true} if the devices are a likely pair, {@code false} otherwise |
| * @hide |
| */ |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_SCAN, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| @SystemApi |
| public boolean isInPairWith(@Nullable AdvertisementServiceData data) { |
| if (VDBG) Log.v(TAG, "isInPairWith()"); |
| if (data == null) { |
| return false; |
| } |
| |
| boolean bothSupportCsip = isCsipSupported() && data.isCsipSupported(); |
| boolean isDifferentSide = |
| (getDeviceSide() != SIDE_UNKNOWN && data.getDeviceSide() != SIDE_UNKNOWN) |
| && (getDeviceSide() != data.getDeviceSide()); |
| boolean isSameTruncatedHiSyncId = mTruncatedHiSyncId == data.mTruncatedHiSyncId; |
| return bothSupportCsip && isDifferentSide && isSameTruncatedHiSyncId; |
| } |
| |
| /** @hide */ |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(@NonNull Parcel dest, int flags) { |
| dest.writeInt(mCapability); |
| dest.writeInt(mTruncatedHiSyncId); |
| } |
| |
| public static final @NonNull Parcelable.Creator<AdvertisementServiceData> CREATOR = |
| new Parcelable.Creator<AdvertisementServiceData>() { |
| public AdvertisementServiceData createFromParcel(Parcel in) { |
| return new AdvertisementServiceData(in); |
| } |
| |
| public AdvertisementServiceData[] newArray(int size) { |
| return new AdvertisementServiceData[size]; |
| } |
| }; |
| } |
| |
| /** |
| * 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>{@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. |
| * <li>{@link BluetoothDevice#EXTRA_DEVICE} - The remote device. |
| * </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. |
| * </ul> |
| * |
| * @hide |
| */ |
| @SystemApi |
| @RequiresLegacyBluetoothPermission |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| @SuppressLint("ActionValue") |
| public static final String ACTION_ACTIVE_DEVICE_CHANGED = |
| "android.bluetooth.hearingaid.profile.action.ACTIVE_DEVICE_CHANGED"; |
| |
| /** @hide */ |
| @IntDef( |
| prefix = "SIDE_", |
| value = {SIDE_UNKNOWN, SIDE_LEFT, SIDE_RIGHT}) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface DeviceSide {} |
| |
| /** |
| * Indicates the device side could not be read. |
| * |
| * @hide |
| */ |
| @SystemApi public static final int SIDE_UNKNOWN = -1; |
| |
| /** |
| * This device represents Left Hearing Aid. |
| * |
| * @hide |
| */ |
| @SystemApi public static final int SIDE_LEFT = IBluetoothHearingAid.SIDE_LEFT; |
| |
| /** |
| * This device represents Right Hearing Aid. |
| * |
| * @hide |
| */ |
| @SystemApi public static final int SIDE_RIGHT = IBluetoothHearingAid.SIDE_RIGHT; |
| |
| /** @hide */ |
| @IntDef( |
| prefix = "MODE_", |
| value = {MODE_UNKNOWN, MODE_MONAURAL, MODE_BINAURAL}) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface DeviceMode {} |
| |
| /** |
| * Indicates the device mode could not be read. |
| * |
| * @hide |
| */ |
| @SystemApi public static final int MODE_UNKNOWN = -1; |
| |
| /** |
| * This device is Monaural. |
| * |
| * @hide |
| */ |
| @SystemApi public static final int MODE_MONAURAL = IBluetoothHearingAid.MODE_MONAURAL; |
| |
| /** |
| * This device is Binaural (should receive only left or right audio). |
| * |
| * @hide |
| */ |
| @SystemApi public static final int MODE_BINAURAL = IBluetoothHearingAid.MODE_BINAURAL; |
| |
| /** |
| * Indicates the HiSyncID could not be read and is unavailable. |
| * |
| * @hide |
| */ |
| @SystemApi public static final long HI_SYNC_ID_INVALID = 0; |
| |
| private final BluetoothAdapter mAdapter; |
| private final AttributionSource mAttributionSource; |
| |
| private IBluetoothHearingAid mService; |
| |
| /** |
| * Create a BluetoothHearingAid proxy object for interacting with the local Bluetooth Hearing |
| * Aid service. |
| */ |
| /* package */ BluetoothHearingAid(Context context, BluetoothAdapter adapter) { |
| mAdapter = adapter; |
| mAttributionSource = adapter.getAttributionSource(); |
| mService = null; |
| } |
| |
| /** @hide */ |
| @Override |
| public void onServiceConnected(IBinder service) { |
| mService = IBluetoothHearingAid.Stub.asInterface(service); |
| } |
| |
| /** @hide */ |
| @Override |
| public void onServiceDisconnected() { |
| mService = null; |
| } |
| |
| private IBluetoothHearingAid getService() { |
| return mService; |
| } |
| |
| /** @hide */ |
| @Override |
| public BluetoothAdapter getAdapter() { |
| return mAdapter; |
| } |
| |
| /** |
| * 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.d(TAG, "connect(" + device + ")"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.connect(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * 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.d(TAG, "disconnect(" + device + ")"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.disconnect(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| public @NonNull List<BluetoothDevice> getConnectedDevices() { |
| if (VDBG) Log.v(TAG, "getConnectedDevices()"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled()) { |
| try { |
| return Attributable.setAttributionSource( |
| service.getConnectedDevices(mAttributionSource), mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| @NonNull |
| public List<BluetoothDevice> getDevicesMatchingConnectionStates(@NonNull int[] states) { |
| if (VDBG) Log.v(TAG, "getDevicesMatchingStates()"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled()) { |
| try { |
| return Attributable.setAttributionSource( |
| service.getDevicesMatchingConnectionStates(states, mAttributionSource), |
| mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| @BluetoothProfile.BtProfileState |
| public int getConnectionState(@NonNull BluetoothDevice device) { |
| if (VDBG) Log.v(TAG, "getState(" + device + ")"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getConnectionState(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| |
| /** |
| * Select a connected device as active. |
| * |
| * <p>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.d(TAG, "setActiveDevice(" + device + ")"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && ((device == null) || isValidDevice(device))) { |
| try { |
| return service.setActiveDevice(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * 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.v(TAG, "getActiveDevices()"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled()) { |
| try { |
| return Attributable.setAttributionSource( |
| service.getActiveDevices(mAttributionSource), mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * 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.d(TAG, "setConnectionPolicy(" + device + ", " + connectionPolicy + ")"); |
| verifyDeviceNotNull(device, "setConnectionPolicy"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() |
| && isValidDevice(device) |
| && (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN |
| || connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) { |
| try { |
| return service.setConnectionPolicy(device, connectionPolicy, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * 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.v(TAG, "getConnectionPolicy(" + device + ")"); |
| verifyDeviceNotNull(device, "getConnectionPolicy"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getConnectionPolicy(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return BluetoothProfile.CONNECTION_POLICY_FORBIDDEN; |
| } |
| |
| /** |
| * Helper for converting a state to a string. |
| * |
| * <p>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 |
| */ |
| @SystemApi |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| 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.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled()) { |
| try { |
| service.setVolume(volume, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| } |
| |
| /** |
| * Get the HiSyncId (unique hearing aid device identifier) of the device. |
| * |
| * <p><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.v(TAG, "getHiSyncId(" + device + ")"); |
| verifyDeviceNotNull(device, "getHiSyncId"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getHiSyncId(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return HI_SYNC_ID_INVALID; |
| } |
| |
| /** |
| * Get the side of the device. |
| * |
| * @param device Bluetooth device. |
| * @return the {@code SIDE_LEFT}, {@code SIDE_RIGHT} of the device, or {@code SIDE_UNKNOWN} if |
| * one is not available. |
| * @hide |
| */ |
| @SystemApi |
| @RequiresLegacyBluetoothPermission |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| @DeviceSide |
| public int getDeviceSide(@NonNull BluetoothDevice device) { |
| if (VDBG) Log.v(TAG, "getDeviceSide(" + device + ")"); |
| verifyDeviceNotNull(device, "getDeviceSide"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getDeviceSide(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return SIDE_UNKNOWN; |
| } |
| |
| /** |
| * Get the mode of the device. |
| * |
| * @param device Bluetooth device |
| * @return the {@code MODE_MONAURAL}, {@code MODE_BINAURAL} of the device, or {@code |
| * MODE_UNKNOWN} if one is not available. |
| * @hide |
| */ |
| @SystemApi |
| @RequiresLegacyBluetoothPermission |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| @DeviceMode |
| public int getDeviceMode(@NonNull BluetoothDevice device) { |
| if (VDBG) Log.v(TAG, "getDeviceMode(" + device + ")"); |
| verifyDeviceNotNull(device, "getDeviceMode"); |
| final IBluetoothHearingAid service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } else if (isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getDeviceMode(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return MODE_UNKNOWN; |
| } |
| |
| /** |
| * Get ASHA device's advertisement service data. |
| * |
| * @param device discovered Bluetooth device |
| * @return {@link AdvertisementServiceData} |
| * @hide |
| */ |
| @SystemApi |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_SCAN, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public @Nullable AdvertisementServiceData getAdvertisementServiceData( |
| @NonNull BluetoothDevice device) { |
| if (DBG) { |
| Log.d(TAG, "getAdvertisementServiceData()"); |
| } |
| final IBluetoothHearingAid service = getService(); |
| if (service == null || !isEnabled() || !isValidDevice(device)) { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) { |
| Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } else { |
| try { |
| return service.getAdvertisementServiceData(device, mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable())); |
| } |
| } |
| return null; |
| } |
| |
| 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; |
| } |
| } |
