IAudioPolicyService.h revision de070137f11d346fba77605bd76a44c040a618fc 
1/*
2 * Copyright (C) 2009 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#ifndef ANDROID_IAUDIOPOLICYSERVICE_H
18#define ANDROID_IAUDIOPOLICYSERVICE_H
19
20#include <stdint.h>
21#include <sys/types.h>
22#include <unistd.h>
23
24#include <utils/RefBase.h>
25#include <utils/Errors.h>
26#include <binder/IInterface.h>
27#include <media/AudioSystem.h>
28
29
30namespace android {
31
32// ----------------------------------------------------------------------------
33
34class IAudioPolicyService : public IInterface
35{
36public:
37    DECLARE_META_INTERFACE(AudioPolicyService);
38
39    //
40    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
41    //
42    virtual status_t setDeviceConnectionState(AudioSystem::audio_devices device,
43                                              AudioSystem::device_connection_state state,
44                                              const char *device_address) = 0;
45    virtual AudioSystem::device_connection_state getDeviceConnectionState(AudioSystem::audio_devices device,
46                                                                          const char *device_address) = 0;
47    virtual status_t setPhoneState(int state) = 0;
48    virtual status_t setRingerMode(uint32_t mode, uint32_t mask) = 0;
49    virtual status_t setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config) = 0;
50    virtual AudioSystem::forced_config getForceUse(AudioSystem::force_use usage) = 0;
51    virtual audio_io_handle_t getOutput(AudioSystem::stream_type stream,
52                                        uint32_t samplingRate = 0,
53                                        uint32_t format = AudioSystem::FORMAT_DEFAULT,
54                                        uint32_t channels = 0,
55                                        AudioSystem::output_flags flags = AudioSystem::OUTPUT_FLAG_INDIRECT) = 0;
56    virtual status_t startOutput(audio_io_handle_t output,
57                                 AudioSystem::stream_type stream,
58                                 int session = 0) = 0;
59    virtual status_t stopOutput(audio_io_handle_t output,
60                                AudioSystem::stream_type stream,
61                                int session = 0) = 0;
62    virtual void releaseOutput(audio_io_handle_t output) = 0;
63    virtual audio_io_handle_t getInput(int inputSource,
64                                    uint32_t samplingRate = 0,
65                                    uint32_t format = AudioSystem::FORMAT_DEFAULT,
66                                    uint32_t channels = 0,
67                                    AudioSystem::audio_in_acoustics acoustics = (AudioSystem::audio_in_acoustics)0) = 0;
68    virtual status_t startInput(audio_io_handle_t input) = 0;
69    virtual status_t stopInput(audio_io_handle_t input) = 0;
70    virtual void releaseInput(audio_io_handle_t input) = 0;
71    virtual status_t initStreamVolume(AudioSystem::stream_type stream,
72                                      int indexMin,
73                                      int indexMax) = 0;
74    virtual status_t setStreamVolumeIndex(AudioSystem::stream_type stream, int index) = 0;
75    virtual status_t getStreamVolumeIndex(AudioSystem::stream_type stream, int *index) = 0;
76    virtual uint32_t getStrategyForStream(AudioSystem::stream_type stream) = 0;
77    virtual audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc) = 0;
78    virtual status_t registerEffect(effect_descriptor_t *desc,
79                                    audio_io_handle_t output,
80                                    uint32_t strategy,
81                                    int session,
82                                    int id) = 0;
83    virtual status_t unregisterEffect(int id) = 0;
84};
85
86
87// ----------------------------------------------------------------------------
88
89class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
90{
91public:
92    virtual status_t    onTransact( uint32_t code,
93                                    const Parcel& data,
94                                    Parcel* reply,
95                                    uint32_t flags = 0);
96};
97
98// ----------------------------------------------------------------------------
99
100}; // namespace android
101
102#endif // ANDROID_IAUDIOPOLICYSERVICE_H
103