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 CAMERA_COMMON_1_0_CAMERAMODULE_H 18 #define CAMERA_COMMON_1_0_CAMERAMODULE_H 19 20 #include <string> 21 #include <unordered_set> 22 23 #include <hardware/camera.h> 24 #include <utils/Mutex.h> 25 #include <utils/KeyedVector.h> 26 #include <utils/RefBase.h> 27 28 #include "CameraMetadata.h" 29 30 namespace android { 31 namespace hardware { 32 namespace camera { 33 namespace common { 34 namespace V1_0 { 35 namespace helper { 36 /** 37 * A wrapper class for HAL camera module. 38 * 39 * This class wraps camera_module_t returned from HAL to provide a wrapped 40 * get_camera_info implementation which CameraService generates some 41 * camera characteristics keys defined in newer HAL version on an older HAL. 42 */ 43 class CameraModule : public RefBase { 44 public: 45 explicit CameraModule(camera_module_t *module); 46 virtual ~CameraModule(); 47 48 // Must be called after construction 49 // Returns OK on success, NO_INIT on failure 50 int init(); 51 52 int getCameraInfo(int cameraId, struct camera_info *info); 53 int getDeviceVersion(int cameraId); 54 int getNumberOfCameras(void); 55 int open(const char* id, struct hw_device_t** device); 56 bool isOpenLegacyDefined() const; 57 int openLegacy(const char* id, uint32_t halVersion, struct hw_device_t** device); 58 int setCallbacks(const camera_module_callbacks_t *callbacks); 59 bool isVendorTagDefined() const; 60 void getVendorTagOps(vendor_tag_ops_t* ops); 61 bool isSetTorchModeSupported() const; 62 int setTorchMode(const char* camera_id, bool enable); 63 uint16_t getModuleApiVersion() const; 64 const char* getModuleName() const; 65 uint16_t getHalApiVersion() const; 66 const char* getModuleAuthor() const; 67 // Only used by CameraModuleFixture native test. Do NOT use elsewhere. 68 void *getDso(); 69 // Only used by CameraProvider 70 void removeCamera(int cameraId); 71 int getPhysicalCameraInfo(int physicalCameraId, camera_metadata_t **physicalInfo); 72 int isStreamCombinationSupported(int cameraId, camera_stream_combination_t *streams); 73 void notifyDeviceStateChange(uint64_t deviceState); 74 75 static bool isLogicalMultiCamera( 76 const common::V1_0::helper::CameraMetadata& metadata, 77 std::unordered_set<std::string>* physicalCameraIds); 78 79 private: 80 // Derive camera characteristics keys defined after HAL device version 81 static void deriveCameraCharacteristicsKeys(uint32_t deviceVersion, CameraMetadata &chars); 82 // Helper function to append available[request|result|chars]Keys 83 static void appendAvailableKeys(CameraMetadata &chars, 84 int32_t keyTag, const Vector<int32_t>& appendKeys); 85 status_t filterOpenErrorCode(status_t err); 86 camera_module_t *mModule; 87 int mNumberOfCameras; 88 KeyedVector<int, camera_info> mCameraInfoMap; 89 KeyedVector<int, int> mDeviceVersionMap; 90 KeyedVector<int, camera_metadata_t*> mPhysicalCameraInfoMap; 91 Mutex mCameraInfoLock; 92 }; 93 94 } // namespace helper 95 } // namespace V1_0 96 } // namespace common 97 } // namespace camera 98 } // namespace hardware 99 } // namespace android 100 101 #endif 102
