1 /*
2  * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef OHOS_IDAUDIO_HDI_CALLBACK_H
17 #define OHOS_IDAUDIO_HDI_CALLBACK_H
18 
19 #include "audio_data.h"
20 #include "audio_event.h"
21 #include "audio_param.h"
22 
23 namespace OHOS {
24 namespace DistributedHardware {
25 class IDAudioHdiCallback {
26 public:
27     virtual ~IDAudioHdiCallback() = default;
28 
29     virtual int32_t CreateStream(const int32_t streamId) = 0;
30 
31     virtual int32_t DestroyStream(const int32_t streamId) = 0;
32 
33     virtual int32_t SetParameters(const int32_t streamId, const AudioParamHDF &param) = 0;
34 
35     virtual int32_t NotifyEvent(const int32_t streamId, const AudioEvent &event) = 0;
36 
37     virtual int32_t WriteStreamData(const int32_t streamId, std::shared_ptr<AudioData> &data) = 0;
38 
39     virtual int32_t ReadStreamData(const int32_t streamId, std::shared_ptr<AudioData> &data) = 0;
40 
41     virtual int32_t ReadMmapPosition(const int32_t streamId, uint64_t &frames, CurrentTimeHDF &time) = 0;
42 
43     virtual int32_t RefreshAshmemInfo(const int32_t streamId,
44         int32_t fd, int32_t ashmemLength, int32_t lengthPerTrans) = 0;
45 };
46 } // DistributedHardware
47 } // OHOS
48 
49 #endif // OHOS_IDAUDIO_HDI_CALLBACK_H