1/*
2 * Copyright (C) 2015 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
17#pragma once
18
19#include <IVolumeCurvesCollection.h>
20#include <AudioGain.h>
21#include <AudioPort.h>
22#include <AudioPatch.h>
23#include <IOProfile.h>
24#include <DeviceDescriptor.h>
25#include <AudioInputDescriptor.h>
26#include <AudioOutputDescriptor.h>
27#include <AudioPolicyMix.h>
28#include <SoundTriggerSession.h>
29
30namespace android {
31
32/**
33 * This interface is an observer that the manager shall implement to allows e.g. the engine
34 * to access to policy pillars elements (like output / input descritors collections,
35 * HwModule collections, AudioMix, ...
36 */
37class AudioPolicyManagerObserver
38{
39public:
40    virtual const AudioPatchCollection &getAudioPatches() const = 0;
41
42    virtual const SoundTriggerSessionCollection &getSoundTriggerSessionCollection() const = 0;
43
44    virtual const AudioPolicyMixCollection &getAudioPolicyMixCollection() const = 0;
45
46    virtual const SwAudioOutputCollection &getOutputs() const = 0;
47
48    virtual const AudioInputCollection &getInputs() const = 0;
49
50    virtual const DeviceVector &getAvailableOutputDevices() const = 0;
51
52    virtual const DeviceVector &getAvailableInputDevices() const = 0;
53
54    virtual IVolumeCurvesCollection &getVolumeCurves() = 0;
55
56    virtual const sp<DeviceDescriptor> &getDefaultOutputDevice() const = 0;
57
58protected:
59    virtual ~AudioPolicyManagerObserver() {}
60};
61
62}; // namespace android
63