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Yin-Chia Yehe074a932015-01-30 10:29:02 -08001/*
2 * Copyright (C) 2015 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_SERVERS_CAMERA_CAMERAMODULE_H
18#define ANDROID_SERVERS_CAMERA_CAMERAMODULE_H
19
20#include <hardware/camera.h>
21#include <camera/CameraMetadata.h>
22#include <utils/Mutex.h>
Chien-Yu Chen676b21b2015-02-24 10:28:19 -080023#include <utils/KeyedVector.h>
Yin-Chia Yehe074a932015-01-30 10:29:02 -080024
25namespace android {
26/**
27 * A wrapper class for HAL camera module.
28 *
29 * This class wraps camera_module_t returned from HAL to provide a wrapped
30 * get_camera_info implementation which CameraService generates some
31 * camera characteristics keys defined in newer HAL version on an older HAL.
32 */
33class CameraModule {
34public:
Chih-Hung Hsieh8b0b9712016-08-09 14:25:53 -070035 explicit CameraModule(camera_module_t *module);
Chien-Yu Chen944f8432015-07-01 17:08:03 -070036 virtual ~CameraModule();
Yin-Chia Yehe074a932015-01-30 10:29:02 -080037
Eino-Ville Talvala1527f072015-04-07 15:55:31 -070038 // Must be called after construction
39 // Returns OK on success, NO_INIT on failure
40 int init();
41
Yin-Chia Yehe074a932015-01-30 10:29:02 -080042 int getCameraInfo(int cameraId, struct camera_info *info);
43 int getNumberOfCameras(void);
44 int open(const char* id, struct hw_device_t** device);
45 int openLegacy(const char* id, uint32_t halVersion, struct hw_device_t** device);
46 int setCallbacks(const camera_module_callbacks_t *callbacks);
47 bool isVendorTagDefined();
48 void getVendorTagOps(vendor_tag_ops_t* ops);
49 int setTorchMode(const char* camera_id, bool enable);
Chien-Yu Chen676b21b2015-02-24 10:28:19 -080050 uint16_t getModuleApiVersion();
51 const char* getModuleName();
52 uint16_t getHalApiVersion();
53 const char* getModuleAuthor();
54 // Only used by CameraModuleFixture native test. Do NOT use elsewhere.
55 void *getDso();
Yin-Chia Yehe074a932015-01-30 10:29:02 -080056
57private:
58 // Derive camera characteristics keys defined after HAL device version
59 static void deriveCameraCharacteristicsKeys(uint32_t deviceVersion, CameraMetadata &chars);
Yin-Chia Yeh4c060992016-04-11 17:40:12 -070060 // Helper function to append available[request|result|chars]Keys
61 static void appendAvailableKeys(CameraMetadata &chars,
62 int32_t keyTag, const Vector<int32_t>& appendKeys);
Chien-Yu Chend231fd62015-02-25 16:04:22 -080063 status_t filterOpenErrorCode(status_t err);
Yin-Chia Yehe074a932015-01-30 10:29:02 -080064 camera_module_t *mModule;
Yin-Chia Yeh54298b32015-03-24 16:51:41 -070065 KeyedVector<int, camera_info> mCameraInfoMap;
Yin-Chia Yehe074a932015-01-30 10:29:02 -080066 Mutex mCameraInfoLock;
67};
68
69} // namespace android
70
71#endif