1 /*
2  * Copyright (C) 2013 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_HAL_H_
18 #define CAMERA_HAL_H_
19 
20 #include <cutils/bitops.h>
21 #include <hardware/hardware.h>
22 #include <hardware/camera_common.h>
23 #include <system/camera_vendor_tags.h>
24 #include "Camera.h"
25 #include "VendorTags.h"
26 
27 namespace default_camera_hal {
28 // CameraHAL contains all module state that isn't specific to an individual
29 // camera device.
30 class CameraHAL {
31     public:
32         explicit CameraHAL(int num_cameras);
33         ~CameraHAL();
34 
35         // Camera Module Interface (see <hardware/camera_common.h>)
36         int getNumberOfCameras();
37         int getCameraInfo(int camera_id, struct camera_info *info);
38         int setCallbacks(const camera_module_callbacks_t *callbacks);
39         void getVendorTagOps(vendor_tag_ops_t* ops);
40 
41         // Hardware Module Interface (see <hardware/hardware.h>)
42         int open(const hw_module_t* mod, const char* name, hw_device_t** dev);
43 
44     private:
45         // Number of cameras
46         const int mNumberOfCameras;
47         // Callback handle
48         const camera_module_callbacks_t *mCallbacks;
49         // Array of camera devices, contains mNumberOfCameras device pointers
50         Camera **mCameras;
51 };
52 } // namespace default_camera_hal
53 
54 #endif // CAMERA_HAL_H_
55