1 /* 2 * Copyright (c) 2022 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 UPDATER_UI_FBDEV_DRIVER_H 17 #define UPDATER_UI_FBDEV_DRIVER_H 18 19 #include <cstdint> 20 #include <linux/fb.h> 21 #include <string> 22 #include "graphic_drv.h" 23 #include "macros_updater.h" 24 #include "updater_ui_const.h" 25 26 namespace Updater { 27 struct FbBufferObject { 28 uint32_t width {}; 29 uint32_t height {}; 30 uint32_t size {}; 31 void *vaddr {}; 32 }; 33 34 class FbdevDriver : public GraphicDrv { 35 DISALLOW_COPY_MOVE(FbdevDriver); 36 using FbBlankHook = std::function<void(int, bool)>; 37 using FbBrightnessHook = std::function<void(const std::string &devPath, bool blank)>; 38 public: 39 FbdevDriver() = default; 40 ~FbdevDriver() override; 41 bool Init() override; 42 void Flip(const uint8_t *buf) override; 43 void GetGrSurface(GrSurface &surface) override; 44 void Blank(bool blank) override; 45 void Exit(void) override; 46 static void SetDevPath(const std::string &devPath); 47 static void RegisterBlankHook(FbBlankHook blankHook); 48 static void RegisterBrightnessHook(FbBrightnessHook brightness); 49 private: 50 void FBLog() const; 51 void ReleaseFb(const struct FbBufferObject *fbo); 52 struct FbBufferObject buff_ {}; 53 struct fb_fix_screeninfo finfo_ {}; 54 struct fb_var_screeninfo vinfo_ {}; 55 bool FbPowerContrl(int fd, bool powerOn); 56 static inline std::string devPath_ = FB_DEV_PATH; 57 static inline FbBlankHook blankHook_ {}; 58 static inline FbBrightnessHook brightnessHook_ {}; 59 }; 60 } // namespace Updater 61 #endif 62