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      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         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