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 <vector>
24 
25 namespace android {
26 
27 enum DrmPropertyType {
28   DRM_PROPERTY_TYPE_INT,
29   DRM_PROPERTY_TYPE_ENUM,
30   DRM_PROPERTY_TYPE_OBJECT,
31   DRM_PROPERTY_TYPE_BLOB,
32   DRM_PROPERTY_TYPE_BITMASK,
33   DRM_PROPERTY_TYPE_INVALID,
34 };
35 
36 class DrmProperty {
37  public:
38   DrmProperty() = default;
39   DrmProperty(drmModePropertyPtr p, uint64_t value);
40   DrmProperty(const DrmProperty &) = delete;
41   DrmProperty &operator=(const DrmProperty &) = delete;
42 
43   void Init(drmModePropertyPtr p, uint64_t value);
SetName(std::string name)44   void SetName(std::string name) { name_ = name; };
45   std::tuple<uint64_t, int> GetEnumValueWithName(std::string name) const;
46 
47   uint32_t id() const;
48   std::string name() const;
49 
50   std::tuple<int, uint64_t> value() const;
51   bool is_immutable() const;
52 
53   bool is_range() const;
54   std::tuple<int, uint64_t> range_min() const;
55   std::tuple<int, uint64_t> range_max() const;
56 
57   void UpdateValue(const uint64_t value);
58   void printProperty() const;
59 
60  private:
61   class DrmPropertyEnum {
62    public:
63     DrmPropertyEnum(drm_mode_property_enum *e);
64     ~DrmPropertyEnum();
65 
66     uint64_t value_;
67     std::string name_;
68   };
69 
70   uint32_t id_ = 0;
71 
72   DrmPropertyType type_ = DRM_PROPERTY_TYPE_INVALID;
73   uint32_t flags_ = 0;
74   std::string name_;
75   uint64_t value_ = 0;
76 
77   std::vector<uint64_t> values_;
78   std::vector<DrmPropertyEnum> enums_;
79   std::vector<uint32_t> blob_ids_;
80 };
81 }  // namespace android
82 
83 #endif  // ANDROID_DRM_PROPERTY_H_
84