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_DAUDIO_HDI_HANDLER_H
17 #define OHOS_DAUDIO_HDI_HANDLER_H
18 
19 #include <map>
20 #include <mutex>
21 #include <set>
22 
23 #include <v2_0/id_audio_callback.h>
24 #include <v2_0/id_audio_manager.h>
25 #include "iremote_object.h"
26 
27 #include "audio_event.h"
28 #include "daudio_manager_callback.h"
29 #include "idaudio_hdi_callback.h"
30 #include "single_instance.h"
31 
32 namespace OHOS {
33 namespace DistributedHardware {
34 using OHOS::HDI::DistributedAudio::Audioext::V2_0::DAudioEvent;
35 using OHOS::HDI::DistributedAudio::Audioext::V2_0::IDAudioCallback;
36 using OHOS::HDI::DistributedAudio::Audioext::V2_0::IDAudioManager;
37 class DAudioHdiHandler {
38     DECLARE_SINGLE_INSTANCE_BASE(DAudioHdiHandler);
39 
40 public:
41     int32_t InitHdiHandler();
42 
43     int32_t UninitHdiHandler();
44 
45     int32_t RegisterAudioDevice(const std::string &devId, const int32_t dhId, const std::string &capability,
46         const std::shared_ptr<IDAudioHdiCallback> &callbackObjParam);
47 
48     int32_t UnRegisterAudioDevice(const std::string &devId, const int32_t dhId);
49 
50     int32_t NotifyEvent(const std::string &devId, const int32_t dhId,
51         const int32_t streamId, const AudioEvent &audioEvent);
52 
53 private:
54     DAudioHdiHandler();
55     ~DAudioHdiHandler();
56     void ProcessEventMsg(const AudioEvent &audioEvent, DAudioEvent &newEvent);
57 
58     class AudioHdiRecipient : public IRemoteObject::DeathRecipient {
59     public:
60         void OnRemoteDied(const wptr<IRemoteObject> &remote) override;
61     };
62     sptr<AudioHdiRecipient> audioHdiRecipient_;
63 
64     const std::string HDF_AUDIO_SERVICE_NAME = "daudio_ext_service";
65     std::mutex devMapMtx_;
66     sptr<IDAudioManager> audioSrvHdf_;
67     std::map<std::string, sptr<DAudioManagerCallback>> mapAudioMgrCallback_;
68     std::map<std::string, std::set<int32_t>> mapAudioMgrDhIds_;
69     sptr<IRemoteObject> remote_;
70 };
71 } // DistributedHardware
72 } // OHOS
73 #endif // OHOS_DAUDIO_HDI_HANDLER_H
74