1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package android.media.soundtrigger_middleware;
17 
18 import android.media.soundtrigger_middleware.ISoundTriggerModule;
19 import android.media.soundtrigger_middleware.ISoundTriggerCallback;
20 import android.media.soundtrigger_middleware.SoundTriggerModuleDescriptor;
21 
22 /**
23  * Main entry point into this module.
24  *
25  * Allows the client to enumerate the available soundtrigger devices and their capabilities, then
26  * attach to either one of them in order to use it.
27  *
28  * {@hide}
29  */
30 interface ISoundTriggerMiddlewareService {
31     /**
32      * Query the available modules and their capabilities.
33      */
listModules()34     SoundTriggerModuleDescriptor[] listModules();
35 
36     /**
37      * Attach to one of the available modules.
38      * listModules() must be called prior to calling this method and the provided handle must be
39      * one of the handles from the returned list.
40      */
attach(int handle, ISoundTriggerCallback callback)41     ISoundTriggerModule attach(int handle, ISoundTriggerCallback callback);
42 }