1 /*
2  * Copyright (C) 2016 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_HARDWARE_AUDIO_V2_0_DEVICE_H
18 #define ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
19 
20 #include <memory>
21 
22 #include <media/AudioParameter.h>
23 #include <hardware/audio.h>
24 
25 #include <android/hardware/audio/2.0/IDevice.h>
26 #include <hidl/Status.h>
27 
28 #include <hidl/MQDescriptor.h>
29 
30 #include "ParametersUtil.h"
31 
32 namespace android {
33 namespace hardware {
34 namespace audio {
35 namespace V2_0 {
36 namespace implementation {
37 
38 using ::android::hardware::audio::common::V2_0::AudioConfig;
39 using ::android::hardware::audio::common::V2_0::AudioHwSync;
40 using ::android::hardware::audio::common::V2_0::AudioInputFlag;
41 using ::android::hardware::audio::common::V2_0::AudioOutputFlag;
42 using ::android::hardware::audio::common::V2_0::AudioPatchHandle;
43 using ::android::hardware::audio::common::V2_0::AudioPort;
44 using ::android::hardware::audio::common::V2_0::AudioPortConfig;
45 using ::android::hardware::audio::common::V2_0::AudioSource;
46 using ::android::hardware::audio::V2_0::DeviceAddress;
47 using ::android::hardware::audio::V2_0::IDevice;
48 using ::android::hardware::audio::V2_0::IStreamIn;
49 using ::android::hardware::audio::V2_0::IStreamOut;
50 using ::android::hardware::audio::V2_0::ParameterValue;
51 using ::android::hardware::audio::V2_0::Result;
52 using ::android::hardware::Return;
53 using ::android::hardware::Void;
54 using ::android::hardware::hidl_vec;
55 using ::android::hardware::hidl_string;
56 using ::android::sp;
57 
58 struct Device : public IDevice, public ParametersUtil {
59     explicit Device(audio_hw_device_t* device);
60 
61     // Methods from ::android::hardware::audio::V2_0::IDevice follow.
62     Return<Result> initCheck()  override;
63     Return<Result> setMasterVolume(float volume)  override;
64     Return<void> getMasterVolume(getMasterVolume_cb _hidl_cb)  override;
65     Return<Result> setMicMute(bool mute)  override;
66     Return<void> getMicMute(getMicMute_cb _hidl_cb)  override;
67     Return<Result> setMasterMute(bool mute)  override;
68     Return<void> getMasterMute(getMasterMute_cb _hidl_cb)  override;
69     Return<void> getInputBufferSize(
70             const AudioConfig& config, getInputBufferSize_cb _hidl_cb)  override;
71     Return<void> openOutputStream(
72             int32_t ioHandle,
73             const DeviceAddress& device,
74             const AudioConfig& config,
75             AudioOutputFlag flags,
76             openOutputStream_cb _hidl_cb)  override;
77     Return<void> openInputStream(
78             int32_t ioHandle,
79             const DeviceAddress& device,
80             const AudioConfig& config,
81             AudioInputFlag flags,
82             AudioSource source,
83             openInputStream_cb _hidl_cb)  override;
84     Return<bool> supportsAudioPatches()  override;
85     Return<void> createAudioPatch(
86             const hidl_vec<AudioPortConfig>& sources,
87             const hidl_vec<AudioPortConfig>& sinks,
88             createAudioPatch_cb _hidl_cb)  override;
89     Return<Result> releaseAudioPatch(int32_t patch)  override;
90     Return<void> getAudioPort(const AudioPort& port, getAudioPort_cb _hidl_cb)  override;
91     Return<Result> setAudioPortConfig(const AudioPortConfig& config)  override;
92     Return<AudioHwSync> getHwAvSync()  override;
93     Return<Result> setScreenState(bool turnedOn)  override;
94     Return<void> getParameters(
95             const hidl_vec<hidl_string>& keys, getParameters_cb _hidl_cb)  override;
96     Return<Result> setParameters(const hidl_vec<ParameterValue>& parameters)  override;
97     Return<void> debugDump(const hidl_handle& fd)  override;
98 
99     // Utility methods for extending interfaces.
100     Result analyzeStatus(const char* funcName, int status);
101     void closeInputStream(audio_stream_in_t* stream);
102     void closeOutputStream(audio_stream_out_t* stream);
deviceDevice103     audio_hw_device_t* device() const { return mDevice; }
104 
105   private:
106     audio_hw_device_t *mDevice;
107 
108     virtual ~Device();
109 
110     // Methods from ParametersUtil.
111     char* halGetParameters(const char* keys) override;
112     int halSetParameters(const char* keysAndValues) override;
113 
versionDevice114     uint32_t version() const { return mDevice->common.version; }
115 };
116 
117 }  // namespace implementation
118 }  // namespace V2_0
119 }  // namespace audio
120 }  // namespace hardware
121 }  // namespace android
122 
123 #endif  // ANDROID_HARDWARE_AUDIO_V2_0_DEVICE_H
124