diff options
Diffstat (limited to 'drmproperty.cpp')
-rw-r--r-- | drmproperty.cpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/drmproperty.cpp b/drmproperty.cpp new file mode 100644 index 0000000..3aeed13 --- /dev/null +++ b/drmproperty.cpp @@ -0,0 +1,134 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "drmproperty.h" +#include "drmdevice.h" + +#include <errno.h> +#include <stdint.h> +#include <string> + +#include <xf86drmMode.h> + +namespace android { + +DrmProperty::DrmPropertyEnum::DrmPropertyEnum(drm_mode_property_enum *e) + : value_(e->value), name_(e->name) { +} + +DrmProperty::DrmPropertyEnum::~DrmPropertyEnum() { +} + +DrmProperty::DrmProperty(drmModePropertyPtr p, uint64_t value) + : id_(0), type_(DRM_PROPERTY_TYPE_INVALID), flags_(0), name_("") { + Init(p, value); +} + +void DrmProperty::Init(drmModePropertyPtr p, uint64_t value) { + id_ = p->prop_id; + flags_ = p->flags; + name_ = p->name; + value_ = value; + + for (int i = 0; i < p->count_values; ++i) + values_.push_back(p->values[i]); + + for (int i = 0; i < p->count_enums; ++i) + enums_.push_back(DrmPropertyEnum(&p->enums[i])); + + for (int i = 0; i < p->count_blobs; ++i) + blob_ids_.push_back(p->blob_ids[i]); + + if (flags_ & DRM_MODE_PROP_RANGE) + type_ = DRM_PROPERTY_TYPE_INT; + else if (flags_ & DRM_MODE_PROP_ENUM) + type_ = DRM_PROPERTY_TYPE_ENUM; + else if (flags_ & DRM_MODE_PROP_OBJECT) + type_ = DRM_PROPERTY_TYPE_OBJECT; + else if (flags_ & DRM_MODE_PROP_BLOB) + type_ = DRM_PROPERTY_TYPE_BLOB; +} + +uint32_t DrmProperty::id() const { + return id_; +} + +std::string DrmProperty::name() const { + return name_; +} + +std::tuple<int, uint64_t> DrmProperty::value() const { + if (type_ == DRM_PROPERTY_TYPE_BLOB) + return std::make_tuple(0, value_); + + if (values_.size() == 0) + return std::make_tuple(-ENOENT, 0); + + switch (type_) { + case DRM_PROPERTY_TYPE_INT: + return std::make_tuple(0, value_); + + case DRM_PROPERTY_TYPE_ENUM: + if (value_ >= enums_.size()) + return std::make_tuple(-ENOENT, 0); + + return std::make_tuple(0, enums_[value_].value_); + + case DRM_PROPERTY_TYPE_OBJECT: + return std::make_tuple(0, value_); + + default: + return std::make_tuple(-EINVAL, 0); + } +} + +bool DrmProperty::is_immutable() const { + return id_ && (flags_ & DRM_MODE_PROP_IMMUTABLE); +} + +bool DrmProperty::is_range() const { + return id_ && (flags_ & DRM_MODE_PROP_RANGE); +} + +std::tuple<int, uint64_t> DrmProperty::range_min() const { + if (!is_range()) + return std::make_tuple(-EINVAL, 0); + if (values_.size() < 1) + return std::make_tuple(-ENOENT, 0); + + return std::make_tuple(0, values_[0]); +} + +std::tuple<int, uint64_t> DrmProperty::range_max() const { + if (!is_range()) + return std::make_tuple(-EINVAL, 0); + if (values_.size() < 2) + return std::make_tuple(-ENOENT, 0); + + return std::make_tuple(0, values_[1]); +} + +std::tuple<uint64_t, int> DrmProperty::GetEnumValueWithName( + std::string name) const { + for (auto it : enums_) { + if (it.name_.compare(name) == 0) { + return std::make_tuple(it.value_, 0); + } + } + + return std::make_tuple(UINT64_MAX, -EINVAL); +} +} // namespace android |