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