1 /*
2  * Copyright (C) 2022 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 FRAMEWORKS_AV_SERVICES_CAMERA_LIBCAMERASERVICE_AIDL_AIDLCAMERASERVICE_H_
18 #define FRAMEWORKS_AV_SERVICES_CAMERA_LIBCAMERASERVICE_AIDL_AIDLCAMERASERVICE_H_
19 
20 #include <CameraService.h>
21 #include <aidl/android/frameworks/cameraservice/common/Status.h>
22 #include <aidl/android/frameworks/cameraservice/service/BnCameraService.h>
23 
24 namespace android::frameworks::cameraservice::service::implementation {
25 
26 // VNDK classes
27 using SBnCameraService = ::aidl::android::frameworks::cameraservice::service::BnCameraService;
28 using SCameraMetadata = ::aidl::android::frameworks::cameraservice::device::CameraMetadata;
29 using SCameraStatusAndId = ::aidl::android::frameworks::cameraservice::service::CameraStatusAndId;
30 using SICameraDeviceCallback =
31         ::aidl::android::frameworks::cameraservice::device::ICameraDeviceCallback;
32 using SICameraDeviceUser = ::aidl::android::frameworks::cameraservice::device::ICameraDeviceUser;
33 using SICameraServiceListener =
34         ::aidl::android::frameworks::cameraservice::service::ICameraServiceListener;
35 using SProviderIdAndVendorTagSections =
36         ::aidl::android::frameworks::cameraservice::common::ProviderIdAndVendorTagSections;
37 using SStatus = ::aidl::android::frameworks::cameraservice::common::Status;
38 // NDK classes
39 using UICameraServiceListener = ::android::hardware::ICameraServiceListener;
40 
41 class AidlCameraService: public SBnCameraService {
42   public:
43     static bool registerService(::android::CameraService* cameraService);
44 
45     explicit AidlCameraService(::android::CameraService* cameraService);
46     ~AidlCameraService() override = default;
47     ndk::ScopedAStatus getCameraCharacteristics(const std::string& in_cameraId,
48                                                 SCameraMetadata* _aidl_return) override;
49 
50     ndk::ScopedAStatus connectDevice(const std::shared_ptr<SICameraDeviceCallback>& in_callback,
51                                      const std::string& in_cameraId,
52                                      std::shared_ptr<SICameraDeviceUser>* _aidl_return) override;
53 
54     ndk::ScopedAStatus addListener(const std::shared_ptr<SICameraServiceListener>& in_listener,
55                                    std::vector<SCameraStatusAndId>* _aidl_return) override;
56 
57     ndk::ScopedAStatus getCameraVendorTagSections(
58             std::vector<SProviderIdAndVendorTagSections>* _aidl_return) override;
59 
60     ndk::ScopedAStatus removeListener(
61             const std::shared_ptr<SICameraServiceListener>& in_listener) override;
62 
63   private:
64     void addToListenerCacheLocked(std::shared_ptr<SICameraServiceListener> stableCsListener,
65                                   sp<hardware::ICameraServiceListener> csListener);
66 
67     sp<UICameraServiceListener> searchListenerCacheLocked(
68             const std::shared_ptr<SICameraServiceListener>& listener, bool removeIfFound = false);
69 
70     SStatus addListenerInternal(const std::shared_ptr<SICameraServiceListener>& listener,
71                                 std::vector<hardware::CameraStatus>* cameraStatusAndIds);
72 
73 
74     ::android::CameraService* mCameraService;
75 
76     Mutex mListenerListLock;
77     std::list<std::pair<std::shared_ptr<SICameraServiceListener>,
78                         sp<UICameraServiceListener>>> mListeners;
79     int mVndkVersion = -1;
80 
81 };
82 
83 } // namespace android::frameworks::cameraservice::service::implementation
84 
85 #endif // FRAMEWORKS_AV_SERVICES_CAMERA_LIBCAMERASERVICE_AIDL_AIDLCAMERASERVICE_H_
86