1 /* 2 * Copyright (c) 2021-2022 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_DRM_DRIVER_H 17 #define UPDATER_UI_DRM_DRIVER_H 18 19 #include <cerrno> 20 #include <cstdio> 21 #include <cstdlib> 22 #include <cstring> 23 #include <drm_fourcc.h> 24 #include <fcntl.h> 25 #include <poll.h> 26 #include <sys/mman.h> 27 #include <xf86drm.h> 28 #include <xf86drmMode.h> 29 #include "macros.h" 30 #include "graphic_drv.h" 31 32 namespace Updater { 33 struct BufferObject { 34 uint32_t width {}; 35 uint32_t height {}; 36 uint32_t pitch {}; 37 uint32_t handle {}; 38 uint32_t size {}; 39 uint8_t *vaddr {}; 40 uint32_t fbId {}; 41 }; 42 43 class DrmDriver : public GraphicDrv { 44 DISALLOW_COPY_MOVE(DrmDriver); 45 public: DrmDriver()46 DrmDriver() : conn_(nullptr), res_(nullptr), crtc_(nullptr) {} 47 ~DrmDriver() override; 48 bool Init() override; 49 void Flip(const uint8_t *buf) override; 50 void Blank(bool blank) override; 51 void Exit(void) override; 52 void GetGrSurface(GrSurface &surface) override; 53 private: 54 int ModesetCreateFb(struct BufferObject *bo); 55 void ModesetDestroyFb(struct BufferObject *bo); 56 int DrmInit(); 57 drmModeCrtc *GetCrtc(const drmModeRes &res, const int fd, const drmModeConnector &conn) const; 58 drmModeConnector *GetFirstConnector(const drmModeRes &res, const int fd) const; 59 drmModeConnector *GetConnectorByType(const drmModeRes &res, const int fd, const uint32_t type) const; 60 drmModeConnector *GetConnector(const drmModeRes &res, const int fd, uint32_t &modeId) const; 61 drmModeRes *GetResources(int &fd) const; 62 drmModeRes *GetOneResources(const int devIndex, int &fd) const; 63 drmModeConnector *conn_; 64 drmModeRes *res_; 65 drmModeCrtc *crtc_; 66 struct BufferObject buff_ {}; 67 }; 68 } // namespace Updater 69 #endif 70