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