1 /*
2  * Copyright 2020 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 <fmq/MessageQueue.h>
20 #include <hidl/MQDescriptor.h>
21 
22 #include "BluetoothAudioProvider.h"
23 
24 namespace android {
25 namespace hardware {
26 namespace bluetooth {
27 namespace audio {
28 namespace V2_1 {
29 namespace implementation {
30 
31 using ::android::hardware::kSynchronizedReadWrite;
32 using ::android::hardware::MessageQueue;
33 
34 using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
35 
36 class HearingAidAudioProvider : public BluetoothAudioProvider {
37  public:
38   HearingAidAudioProvider();
39 
40   bool isValid(const SessionType& sessionType) override;
41   bool isValid(const V2_0::SessionType& sessionType) override;
42 
43   Return<void> startSession(const sp<IBluetoothAudioPort>& hostIf,
44                             const V2_0::AudioConfiguration& audioConfig,
45                             startSession_cb _hidl_cb) override;
46 
47  private:
48   // audio data queue for software encoding
49   std::unique_ptr<DataMQ> mDataMQ;
50 
51   Return<void> onSessionReady(startSession_cb _hidl_cb) override;
52 };
53 
54 }  // namespace implementation
55 }  // namespace V2_1
56 }  // namespace audio
57 }  // namespace bluetooth
58 }  // namespace hardware
59 }  // namespace android
60