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 28 DrmProperty::DrmPropertyEnum::DrmPropertyEnum(drm_mode_property_enum *e) 29 : value_(e->value), name_(e->name) { 30 } 31 32 DrmProperty::DrmPropertyEnum::~DrmPropertyEnum() { 33 } 34 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 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 65 uint32_t DrmProperty::id() const { 66 return id_; 67 } 68 69 std::string DrmProperty::name() const { 70 return name_; 71 } 72 73 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
