1 /* 2 * Copyright (C) 2015 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 ANDROID_DRM_H_ 18 #define ANDROID_DRM_H_ 19 20 #include <cstdint> 21 #include <map> 22 #include <tuple> 23 24 #include "DrmConnector.h" 25 #include "DrmCrtc.h" 26 #include "DrmEncoder.h" 27 #include "DrmFbImporter.h" 28 #include "utils/UniqueFd.h" 29 30 namespace android { 31 32 class DrmFbImporter; 33 class DrmPlane; 34 35 class DrmDevice { 36 public: 37 DrmDevice(); 38 ~DrmDevice() = default; 39 40 auto Init(const char *path) -> int; 41 GetFd()42 auto GetFd() const { 43 return fd_.Get(); 44 } 45 46 auto GetConnectors() -> const std::vector<std::unique_ptr<DrmConnector>> &; 47 auto GetPlanes() -> const std::vector<std::unique_ptr<DrmPlane>> &; 48 auto GetCrtcs() -> const std::vector<std::unique_ptr<DrmCrtc>> &; 49 auto GetEncoders() -> const std::vector<std::unique_ptr<DrmEncoder>> &; 50 GetMinResolution()51 auto GetMinResolution() const { 52 return min_resolution_; 53 } 54 GetMaxResolution()55 auto GetMaxResolution() const { 56 return max_resolution_; 57 } 58 59 std::string GetName() const; 60 61 auto RegisterUserPropertyBlob(void *data, size_t length) const 62 -> DrmModeUserPropertyBlobUnique; 63 HasAddFb2ModifiersSupport()64 auto HasAddFb2ModifiersSupport() const { 65 return HasAddFb2ModifiersSupport_; 66 } 67 GetDrmFbImporter()68 auto &GetDrmFbImporter() { 69 return *drm_fb_importer_; 70 } 71 72 static auto IsKMSDev(const char *path) -> bool; 73 74 auto FindCrtcById(uint32_t id) const -> DrmCrtc * { 75 for (const auto &crtc : crtcs_) { 76 if (crtc->GetId() == id) { 77 return crtc.get(); 78 } 79 }; 80 81 return nullptr; 82 } 83 84 auto FindEncoderById(uint32_t id) const -> DrmEncoder * { 85 for (const auto &enc : encoders_) { 86 if (enc->GetId() == id) { 87 return enc.get(); 88 } 89 }; 90 91 return nullptr; 92 } 93 94 int GetProperty(uint32_t obj_id, uint32_t obj_type, const char *prop_name, 95 DrmProperty *property) const; 96 97 private: 98 UniqueFd fd_; 99 100 std::vector<std::unique_ptr<DrmConnector>> connectors_; 101 std::vector<std::unique_ptr<DrmConnector>> writeback_connectors_; 102 std::vector<std::unique_ptr<DrmEncoder>> encoders_; 103 std::vector<std::unique_ptr<DrmCrtc>> crtcs_; 104 std::vector<std::unique_ptr<DrmPlane>> planes_; 105 106 std::pair<uint32_t, uint32_t> min_resolution_; 107 std::pair<uint32_t, uint32_t> max_resolution_; 108 109 bool HasAddFb2ModifiersSupport_{}; 110 111 std::unique_ptr<DrmFbImporter> drm_fb_importer_; 112 }; 113 } // namespace android 114 115 #endif // ANDROID_DRM_H_ 116