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authorTreeHugger Robot <treehugger-gerrit@google.com>2022-01-18 23:59:58 +0000
committerAndroid (Google) Code Review <android-gerrit@google.com>2022-01-18 23:59:58 +0000
commitd15d8266b900c549d2eed52c56f82d7c3c3792c8 (patch)
tree0b7c4c70453c091e24e37758ff1b1fd49bf20eb3 /framework/java/android/bluetooth/BluetoothMap.java
parent7d69d903a5ee30dac4abc82e056f2b8ec0278708 (diff)
parentaa6d8f71ae61c0e57b35258c00d28fcba5154f09 (diff)
Merge changes from topic "migrate-sc-bt" into sc-v2-dev-plus-aosp
* changes: Migrating BT files into packages/modules/Bluetooth Merge history of Bluetooth API from frameworks/base
Diffstat (limited to 'framework/java/android/bluetooth/BluetoothMap.java')
-rw-r--r--framework/java/android/bluetooth/BluetoothMap.java513
1 files changed, 513 insertions, 0 deletions
diff --git a/framework/java/android/bluetooth/BluetoothMap.java b/framework/java/android/bluetooth/BluetoothMap.java
new file mode 100644
index 0000000000..56e4972624
--- /dev/null
+++ b/framework/java/android/bluetooth/BluetoothMap.java
@@ -0,0 +1,513 @@
+/*
+ * Copyright (C) 2008 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.Manifest;
+import android.annotation.NonNull;
+import android.annotation.RequiresNoPermission;
+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.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.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 APIs to control the Bluetooth MAP
+ * Profile.
+ *
+ * @hide
+ */
+@SystemApi
+public final class BluetoothMap implements BluetoothProfile, AutoCloseable {
+
+ private static final String TAG = "BluetoothMap";
+ private static final boolean DBG = true;
+ private static final boolean VDBG = false;
+
+ private CloseGuard mCloseGuard;
+
+ /** @hide */
+ @SuppressLint("ActionValue")
+ @SystemApi
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+ public static final String ACTION_CONNECTION_STATE_CHANGED =
+ "android.bluetooth.map.profile.action.CONNECTION_STATE_CHANGED";
+
+ /**
+ * There was an error trying to obtain the state
+ *
+ * @hide
+ */
+ public static final int STATE_ERROR = -1;
+
+ /** @hide */
+ public static final int RESULT_FAILURE = 0;
+ /** @hide */
+ public static final int RESULT_SUCCESS = 1;
+ /**
+ * Connection canceled before completion.
+ *
+ * @hide
+ */
+ public static final int RESULT_CANCELED = 2;
+
+ private final BluetoothAdapter mAdapter;
+ private final AttributionSource mAttributionSource;
+ private final BluetoothProfileConnector<IBluetoothMap> mProfileConnector =
+ new BluetoothProfileConnector(this, BluetoothProfile.MAP,
+ "BluetoothMap", IBluetoothMap.class.getName()) {
+ @Override
+ public IBluetoothMap getServiceInterface(IBinder service) {
+ return IBluetoothMap.Stub.asInterface(service);
+ }
+ };
+
+ /**
+ * Create a BluetoothMap proxy object.
+ */
+ /* package */ BluetoothMap(Context context, ServiceListener listener,
+ BluetoothAdapter adapter) {
+ if (DBG) Log.d(TAG, "Create BluetoothMap proxy object");
+ mAdapter = adapter;
+ mAttributionSource = adapter.getAttributionSource();
+ mProfileConnector.connect(context, listener);
+ mCloseGuard = new CloseGuard();
+ mCloseGuard.open("close");
+ }
+
+ protected void finalize() {
+ if (mCloseGuard != null) {
+ mCloseGuard.warnIfOpen();
+ }
+ close();
+ }
+
+ /**
+ * Close the connection to the backing service.
+ * Other public functions of BluetoothMap will return default error
+ * results once close() has been called. Multiple invocations of close()
+ * are ok.
+ *
+ * @hide
+ */
+ @SystemApi
+ public void close() {
+ if (VDBG) log("close()");
+ mProfileConnector.disconnect();
+ }
+
+ private IBluetoothMap getService() {
+ return mProfileConnector.getService();
+ }
+
+ /**
+ * Get the current state of the BluetoothMap service.
+ *
+ * @return One of the STATE_ return codes, or STATE_ERROR if this proxy object is currently not
+ * connected to the Map service.
+ *
+ * @hide
+ */
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+ public int getState() {
+ if (VDBG) log("getState()");
+ final IBluetoothMap service = getService();
+ final int defaultValue = BluetoothMap.STATE_ERROR;
+ if (service == null) {
+ Log.w(TAG, "Proxy not attached to service");
+ if (DBG) log(Log.getStackTraceString(new Throwable()));
+ } else if (isEnabled()) {
+ try {
+ final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver();
+ service.getState(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 currently connected remote Bluetooth device (PCE).
+ *
+ * @return The remote Bluetooth device, or null if not in connected or connecting state, or if
+ * this proxy object is not connected to the Map service.
+ *
+ * @hide
+ */
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+ public BluetoothDevice getClient() {
+ if (VDBG) log("getClient()");
+ final IBluetoothMap service = getService();
+ final BluetoothDevice defaultValue = null;
+ if (service == null) {
+ Log.w(TAG, "Proxy not attached to service");
+ if (DBG) log(Log.getStackTraceString(new Throwable()));
+ } else if (isEnabled()) {
+ try {
+ final SynchronousResultReceiver<BluetoothDevice> recv =
+ new SynchronousResultReceiver();
+ service.getClient(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;
+ }
+
+ /**
+ * Returns true if the specified Bluetooth device is connected.
+ * Returns false if not connected, or if this proxy object is not
+ * currently connected to the Map service.
+ *
+ * @hide
+ */
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+ public boolean isConnected(BluetoothDevice device) {
+ if (VDBG) log("isConnected(" + device + ")");
+ final IBluetoothMap 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.isConnected(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 connection. Initiation of outgoing connections is not
+ * supported for MAP server.
+ *
+ * @hide
+ */
+ @RequiresNoPermission
+ public boolean connect(BluetoothDevice device) {
+ if (DBG) log("connect(" + device + ")" + "not supported for MAPS");
+ return false;
+ }
+
+ /**
+ * Initiate disconnect.
+ *
+ * @param device Remote Bluetooth Device
+ * @return false on error, true otherwise
+ *
+ * @hide
+ */
+ @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+ public boolean disconnect(BluetoothDevice device) {
+ if (DBG) log("disconnect(" + device + ")");
+ final IBluetoothMap 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;
+ }
+
+ /**
+ * Check class bits for possible Map support.
+ * This is a simple heuristic that tries to guess if a device with the
+ * given class bits might support Map. It is not accurate for all
+ * devices. It tries to err on the side of false positives.
+ *
+ * @return True if this device might support Map.
+ *
+ * @hide
+ */
+ public static boolean doesClassMatchSink(BluetoothClass btClass) {
+ // TODO optimize the rule
+ switch (btClass.getDeviceClass()) {
+ case BluetoothClass.Device.COMPUTER_DESKTOP:
+ case BluetoothClass.Device.COMPUTER_LAPTOP:
+ case BluetoothClass.Device.COMPUTER_SERVER:
+ case BluetoothClass.Device.COMPUTER_UNCATEGORIZED:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ /**
+ * Get the list of connected devices. Currently at most one.
+ *
+ * @return list of connected devices
+ *
+ * @hide
+ */
+ @SystemApi
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(allOf = {
+ android.Manifest.permission.BLUETOOTH_CONNECT,
+ android.Manifest.permission.BLUETOOTH_PRIVILEGED,
+ })
+ public @NonNull List<BluetoothDevice> getConnectedDevices() {
+ if (DBG) log("getConnectedDevices()");
+ final IBluetoothMap 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;
+ }
+
+ /**
+ * Get the list of devices matching specified states. Currently at most one.
+ *
+ * @return list of matching devices
+ *
+ * @hide
+ */
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT)
+ public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {
+ if (DBG) log("getDevicesMatchingStates()");
+ final IBluetoothMap 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;
+ }
+
+ /**
+ * Get connection state of device
+ *
+ * @return device connection state
+ *
+ * @hide
+ */
+ @RequiresBluetoothConnectPermission
+ @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT)
+ public int getConnectionState(BluetoothDevice device) {
+ if (DBG) log("getConnectionState(" + device + ")");
+ final IBluetoothMap 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;
+ }
+
+ /**
+ * 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 + ")");
+ final IBluetoothMap 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 + ")");
+ final IBluetoothMap 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;
+ }
+
+ private static void log(String msg) {
+ Log.d(TAG, msg);
+ }
+
+ private boolean isEnabled() {
+ return mAdapter.isEnabled();
+ }
+
+ private static boolean isValidDevice(BluetoothDevice device) {
+ return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress());
+ }
+}