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 #include "drmproperty.h"
18 #include "drmresources.h"
19
20 #include <errno.h>
21 #include <stdint.h>
22 #include <string>
23
24 #include <xf86drmMode.h>
25
26 namespace android {
27
DrmPropertyEnum(drm_mode_property_enum * e)28 DrmProperty::DrmPropertyEnum::DrmPropertyEnum(drm_mode_property_enum *e)
29 : value_(e->value), name_(e->name) {
30 }
31
~DrmPropertyEnum()32 DrmProperty::DrmPropertyEnum::~DrmPropertyEnum() {
33 }
34
DrmProperty(drmModePropertyPtr p,uint64_t value)35 DrmProperty::DrmProperty(drmModePropertyPtr p, uint64_t value)
36 : id_(0), type_(DRM_PROPERTY_TYPE_INVALID), flags_(0), name_("") {
37 Init(p, value);
38 }
39
Init(drmModePropertyPtr p,uint64_t value)40 void DrmProperty::Init(drmModePropertyPtr p, uint64_t value) {
41 id_ = p->prop_id;
42 flags_ = p->flags;
43 name_ = p->name;
44 value_ = value;
45
46 for (int i = 0; i < p->count_values; ++i)
47 values_.push_back(p->values[i]);
48
49 for (int i = 0; i < p->count_enums; ++i)
50 enums_.push_back(DrmPropertyEnum(&p->enums[i]));
51
52 for (int i = 0; i < p->count_blobs; ++i)
53 blob_ids_.push_back(p->blob_ids[i]);
54
55 if (flags_ & DRM_MODE_PROP_RANGE)
56 type_ = DRM_PROPERTY_TYPE_INT;
57 else if (flags_ & DRM_MODE_PROP_ENUM)
58 type_ = DRM_PROPERTY_TYPE_ENUM;
59 else if (flags_ & DRM_MODE_PROP_OBJECT)
60 type_ = DRM_PROPERTY_TYPE_OBJECT;
61 else if (flags_ & DRM_MODE_PROP_BLOB)
62 type_ = DRM_PROPERTY_TYPE_BLOB;
63 }
64
id() const65 uint32_t DrmProperty::id() const {
66 return id_;
67 }
68
name() const69 std::string DrmProperty::name() const {
70 return name_;
71 }
72
value(uint64_t * value) const73 int DrmProperty::value(uint64_t *value) const {
74 if (type_ == DRM_PROPERTY_TYPE_BLOB) {
75 *value = value_;
76 return 0;
77 }
78
79 if (values_.size() == 0)
80 return -ENOENT;
81
82 switch (type_) {
83 case DRM_PROPERTY_TYPE_INT:
84 *value = value_;
85 return 0;
86
87 case DRM_PROPERTY_TYPE_ENUM:
88 if (value_ >= enums_.size())
89 return -ENOENT;
90
91 *value = enums_[value_].value_;
92 return 0;
93
94 case DRM_PROPERTY_TYPE_OBJECT:
95 *value = value_;
96 return 0;
97
98 default:
99 return -EINVAL;
100 }
101 }
102 }
103