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_AUTOMOTIVE_EVS_V1_0_EVSCAMERAENUMERATOR_H 18 #define ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSCAMERAENUMERATOR_H 19 20 #include <android/hardware/automotive/evs/1.0/IEvsEnumerator.h> 21 #include <android/hardware/automotive/evs/1.0/IEvsCamera.h> 22 23 #include <list> 24 25 26 namespace android { 27 namespace hardware { 28 namespace automotive { 29 namespace evs { 30 namespace V1_0 { 31 namespace implementation { 32 33 34 class EvsCamera; // from EvsCamera.h 35 class EvsDisplay; // from EvsDisplay.h 36 37 38 class EvsEnumerator : public IEvsEnumerator { 39 public: 40 // Methods from ::android::hardware::automotive::evs::V1_0::IEvsEnumerator follow. 41 Return<void> getCameraList(getCameraList_cb _hidl_cb) override; 42 Return<sp<IEvsCamera>> openCamera(const hidl_string& cameraId) override; 43 Return<void> closeCamera(const ::android::sp<IEvsCamera>& carCamera) override; 44 Return<sp<IEvsDisplay>> openDisplay() override; 45 Return<void> closeDisplay(const ::android::sp<IEvsDisplay>& display) override; 46 Return<DisplayState> getDisplayState() override; 47 48 // Implementation details 49 EvsEnumerator(); 50 51 private: 52 // NOTE: All members values are static so that all clients operate on the same state 53 // That is to say, this is effectively a singleton despite the fact that HIDL 54 // constructs a new instance for each client. 55 struct CameraRecord { 56 CameraDesc desc; 57 wp<EvsCamera> activeInstance; 58 59 CameraRecord(const char *cameraId) : desc() { desc.cameraId = cameraId; } 60 }; 61 static std::list<CameraRecord> sCameraList; 62 63 static wp<EvsDisplay> sActiveDisplay; // Weak pointer. Object destructs if client dies. 64 }; 65 66 } // namespace implementation 67 } // namespace V1_0 68 } // namespace evs 69 } // namespace automotive 70 } // namespace hardware 71 } // namespace android 72 73 #endif // ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSCAMERAENUMERATOR_H 74
