1/*
2 * Copyright 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// Modified from hardware/libhardware/modules/camera/CameraHAL.h
18
19#ifndef V4L2_CAMERA_HAL_V4L2_CAMERA_HAL_H_
20#define V4L2_CAMERA_HAL_V4L2_CAMERA_HAL_H_
21
22#include <vector>
23
24#include <hardware/camera_common.h>
25#include <hardware/hardware.h>
26
27#include "camera.h"
28#include "common.h"
29
30namespace v4l2_camera_hal {
31/*
32 * V4L2CameraHAL contains all module state that isn't specific to an
33 * individual camera device. This class is based off of the sample
34 * default CameraHAL from /hardware/libhardware/modules/camera.
35 */
36class V4L2CameraHAL {
37 public:
38  V4L2CameraHAL();
39  ~V4L2CameraHAL();
40
41  // Camera Module Interface (see <hardware/camera_common.h>).
42  int getNumberOfCameras();
43  int getCameraInfo(int camera_id, camera_info_t* info);
44  int setCallbacks(const camera_module_callbacks_t* callbacks);
45  void getVendorTagOps(vendor_tag_ops_t* ops);
46  int openLegacy(const hw_module_t* module,
47                 const char* id,
48                 uint32_t halVersion,
49                 hw_device_t** device);
50  int setTorchMode(const char* camera_id, bool enabled);
51
52  // Hardware Module Interface (see <hardware/hardware.h>).
53  int openDevice(const hw_module_t* mod, const char* name, hw_device_t** dev);
54
55 private:
56  // Vector of cameras.
57  std::vector<std::unique_ptr<default_camera_hal::Camera>> mCameras;
58  // Callback handle.
59  const camera_module_callbacks_t* mCallbacks;
60
61  DISALLOW_COPY_AND_ASSIGN(V4L2CameraHAL);
62};
63
64}  // namespace v4l2_camera_hal
65
66extern camera_module_t HAL_MODULE_INFO_SYM;
67
68#endif  // V4L2_CAMERA_HAL_V4L2_CAMERA_HAL_H_
69