1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef HOS_CAMERA_V4L2_CONTROL_H 17 #define HOS_CAMERA_V4L2_CONTROL_H 18 19 #include <errno.h> 20 #include <sys/ioctl.h> 21 #include <linux/videodev2.h> 22 #include "v4l2_common.h" 23 #if defined(V4L2_UTEST) || defined (V4L2_MAIN_TEST) 24 #include "v4l2_temp.h" 25 #else 26 #include <camera.h> 27 #endif 28 29 namespace OHOS::Camera { 30 class HosV4L2Control { 31 public: 32 HosV4L2Control(); 33 ~HosV4L2Control(); 34 35 RetCode V4L2GetCtrl(int fd, unsigned int id, int& value); 36 RetCode V4L2SetCtrl(int fd, unsigned int id, int value); 37 RetCode V4L2GetControls(int fd, std::vector<DeviceControl>& control); 38 RetCode V4L2SetCtrls(int fd, std::vector<DeviceControl>& control, const int numControls); 39 RetCode V4L2GetCtrls(int fd, std::vector<DeviceControl>& control, const int numControls); 40 41 private: 42 void V4L2SetValue(int fd, std::vector<DeviceControl>& control, DeviceControl& ctrl, 43 v4l2_queryctrl& qCtrl); 44 int ExtControl(int fd, struct v4l2_queryctrl *ctrl); 45 void V4L2EnumExtControls(int fd, std::vector<DeviceControl>& control); 46 void V4L2EnumControls(int fd, std::vector<DeviceControl>& control); 47 int V4L2GetControl(int fd, std::vector<DeviceControl>& control, unsigned int id); 48 }; 49 } // namespace OHOS::Camera 50 51 #endif // HOS_CAMERA_V4L2_CONTROL_H 52