Add Volume Control Profile API

Bug: 150670922
Test: compilation
Tag: #feature
Sponsor: jpawlowski@
Change-Id: I4a12847f9be7cb77d9094fd5a1a8f9c68053ad21

system/binder/Android.bp

@@ -28,6 +28,7 @@ cc_library_shared {
         "android/bluetooth/IBluetoothProfileServiceConnection.aidl",
         "android/bluetooth/IBluetoothHeadset.aidl",
         "android/bluetooth/IBluetoothHearingAid.aidl",
+        "android/bluetooth/IBluetoothVolumeControl.aidl",
         "android/bluetooth/IBluetoothHidHost.aidl",
         "android/bluetooth/IBluetoothPan.aidl",
         "android/bluetooth/IBluetoothManager.aidl",
@@ -102,6 +103,7 @@ filegroup {
         "android/bluetooth/IBluetoothProfileServiceConnection.aidl",
         "android/bluetooth/IBluetoothHeadset.aidl",
         "android/bluetooth/IBluetoothHearingAid.aidl",
+        "android/bluetooth/IBluetoothVolumeControl.aidl",
         "android/bluetooth/IBluetoothHidHost.aidl",
         "android/bluetooth/IBluetoothLeAudio.aidl",
         "android/bluetooth/IBluetoothPan.aidl",

system/binder/android/bluetooth/IBluetoothVolumeControl.aidl

+/*
+ * Copyright 2021 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 android.bluetooth.BluetoothDevice;
+
+/**
+ * APIs for Bluetooth Volume Control service
+ *
+ * @hide
+ */
+interface IBluetoothVolumeControl {
+    /* Public API */
+    boolean connect(in BluetoothDevice device);
+    boolean disconnect(in BluetoothDevice device);
+    List<BluetoothDevice> getConnectedDevices();
+    List<BluetoothDevice> getDevicesMatchingConnectionStates(in int[] states);
+    int getConnectionState(in BluetoothDevice device);
+    boolean setConnectionPolicy(in BluetoothDevice device, int connectionPolicy);
+    int getConnectionPolicy(in BluetoothDevice device);
+
+    void setVolume(in BluetoothDevice device, int volume);
+    void setVolumeGroup(int group_id, int volume);
+}