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_PROPERTY_H_ 18 #define ANDROID_DRM_PROPERTY_H_ 19 20 #include <stdint.h> 21 #include <xf86drmMode.h> 22 #include <string> 23 #include <unordered_map> 24 #include <vector> 25 26 namespace android { 27 28 enum DrmPropertyType { 29 DRM_PROPERTY_TYPE_INT, 30 DRM_PROPERTY_TYPE_ENUM, 31 DRM_PROPERTY_TYPE_OBJECT, 32 DRM_PROPERTY_TYPE_BLOB, 33 DRM_PROPERTY_TYPE_BITMASK, 34 DRM_PROPERTY_TYPE_INVALID, 35 }; 36 37 class DrmProperty { 38 public: 39 DrmProperty() = default; 40 DrmProperty(drmModePropertyPtr p, uint64_t value); 41 DrmProperty(const DrmProperty &) = delete; 42 DrmProperty &operator=(const DrmProperty &) = delete; 43 44 void Init(drmModePropertyPtr p, uint64_t value); SetName(std::string name)45 void SetName(std::string name) { name_ = name; }; 46 std::tuple<uint64_t, int> GetEnumValueWithName(std::string name) const; 47 48 uint32_t id() const; 49 std::string name() const; 50 51 std::tuple<int, uint64_t> value() const; 52 bool is_immutable() const; 53 54 bool is_range() const; 55 std::tuple<int, uint64_t> range_min() const; 56 std::tuple<int, uint64_t> range_max() const; 57 58 void UpdateValue(const uint64_t value); 59 void printProperty() const; 60 61 private: 62 class DrmPropertyEnum { 63 public: 64 DrmPropertyEnum(drm_mode_property_enum *e); 65 ~DrmPropertyEnum(); 66 67 uint64_t value_; 68 std::string name_; 69 }; 70 71 uint32_t id_ = 0; 72 73 DrmPropertyType type_ = DRM_PROPERTY_TYPE_INVALID; 74 uint32_t flags_ = 0; 75 std::string name_; 76 uint64_t value_ = 0; 77 78 std::vector<uint64_t> values_; 79 std::vector<DrmPropertyEnum> enums_; 80 std::vector<uint32_t> blob_ids_; 81 }; 82 83 class DrmEnumParser { 84 public: 85 using MapHal2DrmEnum = std::unordered_map<uint32_t, uint64_t>; 86 87 static std::tuple<uint64_t, int> halToDrmEnum(const uint32_t halData, 88 const MapHal2DrmEnum& drmEnums); 89 90 static void parseEnums(const DrmProperty &property, 91 const std::vector<std::pair<uint32_t, const char *>> &enums, 92 MapHal2DrmEnum& out_enums); 93 }; 94 95 } // namespace android 96 97 #endif // ANDROID_DRM_PROPERTY_H_ 98