| /* |
| * 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. |
| */ |
| |
| /* |
| * Defines the native interface that is used by state machine/service to |
| * send or receive messages from the native stack. This file is registered |
| * for the native methods in the corresponding JNI C++ file. |
| */ |
| package com.android.bluetooth.le_audio; |
| |
| import android.bluetooth.BluetoothAdapter; |
| import android.bluetooth.BluetoothDevice; |
| import android.bluetooth.BluetoothLeAudioCodecConfig; |
| import android.util.Log; |
| |
| import com.android.bluetooth.Utils; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.Arrays; |
| |
| /** |
| * LeAudio Native Interface to/from JNI. |
| */ |
| public class LeAudioNativeInterface { |
| private static final String TAG = LeAudioNativeInterface.class.getSimpleName(); |
| private static final boolean DBG = true; |
| |
| private BluetoothAdapter mAdapter; |
| |
| @GuardedBy("INSTANCE_LOCK") |
| private static LeAudioNativeInterface sInstance; |
| |
| private static final Object INSTANCE_LOCK = new Object(); |
| |
| private LeAudioNativeInterface() { |
| mAdapter = BluetoothAdapter.getDefaultAdapter(); |
| if (mAdapter == null) { |
| Log.wtf(TAG, "No Bluetooth Adapter Available"); |
| } |
| } |
| |
| /** |
| * Get singleton instance. |
| */ |
| public static LeAudioNativeInterface getInstance() { |
| synchronized (INSTANCE_LOCK) { |
| if (sInstance == null) { |
| sInstance = new LeAudioNativeInterface(); |
| } |
| return sInstance; |
| } |
| } |
| |
| /** Set singleton instance. */ |
| @VisibleForTesting |
| public static void setInstance(LeAudioNativeInterface instance) { |
| synchronized (INSTANCE_LOCK) { |
| sInstance = instance; |
| } |
| } |
| |
| private byte[] getByteAddress(BluetoothDevice device) { |
| if (device == null) { |
| return Utils.getBytesFromAddress("00:00:00:00:00:00"); |
| } |
| return Utils.getBytesFromAddress(device.getAddress()); |
| } |
| |
| private void sendMessageToService(LeAudioStackEvent event) { |
| LeAudioService service = LeAudioService.getLeAudioService(); |
| if (service != null) { |
| service.messageFromNative(event); |
| } else { |
| Log.e(TAG, "Event ignored, service not available: " + event); |
| } |
| } |
| |
| private BluetoothDevice getDevice(byte[] address) { |
| return mAdapter.getRemoteDevice(address); |
| } |
| |
| // Callbacks from the native stack back into the Java framework. |
| // All callbacks are routed via the Service which will disambiguate which |
| // state machine the message should be routed to. |
| private void onInitialized() { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_NATIVE_INITIALIZED); |
| |
| if (DBG) { |
| Log.d(TAG, "onInitialized: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onConnectionStateChanged(int state, byte[] address) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_CONNECTION_STATE_CHANGED); |
| event.device = getDevice(address); |
| event.valueInt1 = state; |
| |
| if (DBG) { |
| Log.d(TAG, "onConnectionStateChanged: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onGroupStatus(int groupId, int groupStatus) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_GROUP_STATUS_CHANGED); |
| event.valueInt1 = groupId; |
| event.valueInt2 = groupStatus; |
| |
| if (DBG) { |
| Log.d(TAG, "onGroupStatus: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onGroupNodeStatus(byte[] address, int groupId, int nodeStatus) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_GROUP_NODE_STATUS_CHANGED); |
| event.valueInt1 = groupId; |
| event.valueInt2 = nodeStatus; |
| event.device = getDevice(address); |
| |
| if (DBG) { |
| Log.d(TAG, "onGroupNodeStatus: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onAudioConf(int direction, int groupId, int sinkAudioLocation, |
| int sourceAudioLocation, int availableContexts) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_AUDIO_CONF_CHANGED); |
| event.valueInt1 = direction; |
| event.valueInt2 = groupId; |
| event.valueInt3 = sinkAudioLocation; |
| event.valueInt4 = sourceAudioLocation; |
| event.valueInt5 = availableContexts; |
| |
| if (DBG) { |
| Log.d(TAG, "onAudioConf: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onSinkAudioLocationAvailable(byte[] address, int sinkAudioLocation) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_SINK_AUDIO_LOCATION_AVAILABLE); |
| event.device = getDevice(address); |
| event.valueInt1 = sinkAudioLocation; |
| |
| if (DBG) { |
| Log.d(TAG, "onSinkAudioLocationAvailable: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onAudioLocalCodecCapabilities( |
| BluetoothLeAudioCodecConfig[] localInputCodecCapabilities, |
| BluetoothLeAudioCodecConfig[] localOutputCodecCapabilities) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent( |
| LeAudioStackEvent.EVENT_TYPE_AUDIO_LOCAL_CODEC_CONFIG_CAPA_CHANGED); |
| |
| event.valueCodecList1 = Arrays.asList(localInputCodecCapabilities); |
| event.valueCodecList2 = Arrays.asList(localOutputCodecCapabilities); |
| |
| if (DBG) { |
| Log.d(TAG, "onAudioLocalCodecCapabilities: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onAudioGroupCodecConf(int groupId, BluetoothLeAudioCodecConfig inputCodecConfig, |
| BluetoothLeAudioCodecConfig outputCodecConfig, |
| BluetoothLeAudioCodecConfig [] inputSelectableCodecConfig, |
| BluetoothLeAudioCodecConfig [] outputSelectableCodecConfig) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent( |
| LeAudioStackEvent.EVENT_TYPE_AUDIO_GROUP_CODEC_CONFIG_CHANGED); |
| |
| event.valueInt1 = groupId; |
| event.valueCodec1 = inputCodecConfig; |
| event.valueCodec2 = outputCodecConfig; |
| event.valueCodecList1 = Arrays.asList(inputSelectableCodecConfig); |
| event.valueCodecList2 = Arrays.asList(outputSelectableCodecConfig); |
| |
| if (DBG) { |
| Log.d(TAG, "onAudioGroupCodecConf: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onHealthBasedRecommendationAction(byte[] address, int action) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_HEALTH_BASED_DEV_RECOMMENDATION); |
| event.device = getDevice(address); |
| event.valueInt1 = action; |
| |
| if (DBG) { |
| Log.d(TAG, "onHealthBasedRecommendationAction: " + event); |
| } |
| sendMessageToService(event); |
| } |
| |
| @VisibleForTesting |
| void onHealthBasedGroupRecommendationAction(int groupId, int action) { |
| LeAudioStackEvent event = |
| new LeAudioStackEvent( |
| LeAudioStackEvent.EVENT_TYPE_HEALTH_BASED_GROUP_RECOMMENDATION); |
| event.valueInt1 = groupId; |
| event.valueInt2 = action; |
| |
| if (DBG) { |
| Log.d(TAG, "onHealthBasedGroupRecommendationAction: " + event); |
| } |
| sendMessageToService(event); |
| } |
| /** |
| * Initializes the native interface. |
| * |
| * priorities to configure. |
| */ |
| public void init(BluetoothLeAudioCodecConfig[] codecConfigOffloading) { |
| initNative(codecConfigOffloading); |
| } |
| |
| /** |
| * Cleanup the native interface. |
| */ |
| public void cleanup() { |
| cleanupNative(); |
| } |
| |
| /** |
| * Initiates LeAudio connection to a remote device. |
| * |
| * @param device the remote device |
| * @return true on success, otherwise false. |
| */ |
| public boolean connectLeAudio(BluetoothDevice device) { |
| return connectLeAudioNative(getByteAddress(device)); |
| } |
| |
| /** |
| * Disconnects LeAudio from a remote device. |
| * |
| * @param device the remote device |
| * @return true on success, otherwise false. |
| */ |
| public boolean disconnectLeAudio(BluetoothDevice device) { |
| return disconnectLeAudioNative(getByteAddress(device)); |
| } |
| |
| /** |
| * Enable/Disable LeAudio for the group. |
| * |
| * @param device the remote device |
| * @param enabled true if enabled, false to disabled |
| * @return true on success, otherwise false. |
| */ |
| public boolean setEnableState(BluetoothDevice device, boolean enabled) { |
| return setEnableStateNative(getByteAddress(device), enabled); |
| } |
| |
| /** |
| * Add new Node into a group. |
| * @param groupId group identifier |
| * @param device remote device |
| */ |
| public boolean groupAddNode(int groupId, BluetoothDevice device) { |
| return groupAddNodeNative(groupId, getByteAddress(device)); |
| } |
| |
| /** |
| * Add new Node into a group. |
| * @param groupId group identifier |
| * @param device remote device |
| */ |
| public boolean groupRemoveNode(int groupId, BluetoothDevice device) { |
| return groupRemoveNodeNative(groupId, getByteAddress(device)); |
| } |
| |
| /** |
| * Set active group. |
| * @param groupId group ID to set as active |
| */ |
| public void groupSetActive(int groupId) { |
| groupSetActiveNative(groupId); |
| } |
| |
| /** |
| * Set codec config preference. |
| * @param groupId group ID for the preference |
| * @param inputCodecConfig input codec configuration |
| * @param outputCodecConfig output codec configuration |
| */ |
| public void setCodecConfigPreference(int groupId, |
| BluetoothLeAudioCodecConfig inputCodecConfig, |
| BluetoothLeAudioCodecConfig outputCodecConfig) { |
| setCodecConfigPreferenceNative(groupId, inputCodecConfig, outputCodecConfig); |
| } |
| |
| /** |
| * Set content control id (Ccid) along with context type. |
| * @param ccid content control id |
| * @param contextType assigned contextType |
| */ |
| public void setCcidInformation(int ccid, int contextType) { |
| if (DBG) { |
| Log.d(TAG, "setCcidInformation ccid: " + ccid + " context type: " + contextType); |
| } |
| setCcidInformationNative(ccid, contextType); |
| } |
| |
| /** |
| * Set in call call flag. |
| * @param inCall true when device in call (any state), false otherwise |
| */ |
| public void setInCall(boolean inCall) { |
| if (DBG) { |
| Log.d(TAG, "setInCall inCall: " + inCall); |
| } |
| setInCallNative(inCall); |
| } |
| |
| /** |
| * Sends the audio preferences for the groupId to the native stack. |
| * |
| * @param groupId is the groupId corresponding to the preferences |
| * @param isOutputPreferenceLeAudio whether LEA is preferred for OUTPUT_ONLY |
| * @param isDuplexPreferenceLeAudio whether LEA is preferred for DUPLEX |
| */ |
| public void sendAudioProfilePreferences(int groupId, boolean isOutputPreferenceLeAudio, |
| boolean isDuplexPreferenceLeAudio) { |
| if (DBG) { |
| Log.d(TAG, "sendAudioProfilePreferences groupId=" + groupId |
| + ", isOutputPreferenceLeAudio=" + isOutputPreferenceLeAudio |
| + ", isDuplexPreferenceLeAudio=" + isDuplexPreferenceLeAudio); |
| } |
| sendAudioProfilePreferencesNative(groupId, isOutputPreferenceLeAudio, |
| isDuplexPreferenceLeAudio); |
| } |
| |
| // Native methods that call into the JNI interface |
| private native void initNative(BluetoothLeAudioCodecConfig[] codecConfigOffloading); |
| private native void cleanupNative(); |
| private native boolean connectLeAudioNative(byte[] address); |
| private native boolean disconnectLeAudioNative(byte[] address); |
| private native boolean setEnableStateNative(byte[] address, boolean enabled); |
| private native boolean groupAddNodeNative(int groupId, byte[] address); |
| private native boolean groupRemoveNodeNative(int groupId, byte[] address); |
| private native void groupSetActiveNative(int groupId); |
| private native void setCodecConfigPreferenceNative(int groupId, |
| BluetoothLeAudioCodecConfig inputCodecConfig, |
| BluetoothLeAudioCodecConfig outputCodecConfig); |
| private native void setCcidInformationNative(int ccid, int contextType); |
| private native void setInCallNative(boolean inCall); |
| /*package*/ |
| private native void sendAudioProfilePreferencesNative(int groupId, |
| boolean isOutputPreferenceLeAudio, boolean isDuplexPreferenceLeAudio); |
| } |