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/*
* 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.
*/
// NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
#define LOG_TAG "hwc-drm-property"
#include "DrmProperty.h"
#include <xf86drmMode.h>
#include <cerrno>
#include <cstdint>
#include <string>
#include "DrmDevice.h"
#include "utils/log.h"
namespace android {
DrmProperty::DrmPropertyEnum::DrmPropertyEnum(drm_mode_property_enum *e)
: value_(e->value), name_(e->name) {
}
DrmProperty::DrmProperty(uint32_t obj_id, drmModePropertyPtr p,
uint64_t value) {
Init(obj_id, p, value);
}
void DrmProperty::Init(uint32_t obj_id, drmModePropertyPtr p, uint64_t value) {
obj_id_ = obj_id;
id_ = p->prop_id;
flags_ = p->flags;
name_ = p->name;
value_ = value;
for (int i = 0; i < p->count_values; ++i)
values_.emplace_back(p->values[i]);
for (int i = 0; i < p->count_enums; ++i)
enums_.emplace_back(DrmPropertyEnum(&p->enums[i]));
for (int i = 0; i < p->count_blobs; ++i)
blob_ids_.emplace_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;
else if (flags_ & DRM_MODE_PROP_BITMASK)
type_ = DRM_PROPERTY_TYPE_BITMASK;
}
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_.empty())
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_);
case DRM_PROPERTY_TYPE_BITMASK:
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_.empty())
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(
const std::string &name) const {
for (const auto &it : enums_) {
if (it.name_ == name) {
return std::make_tuple(it.value_, 0);
}
}
return std::make_tuple(UINT64_MAX, -EINVAL);
}
auto DrmProperty::AtomicSet(drmModeAtomicReq &pset, uint64_t value) const
-> bool {
if (id_ == 0) {
ALOGE("AtomicSet() is called on non-initialized property!");
return false;
}
if (drmModeAtomicAddProperty(&pset, obj_id_, id_, value) < 0) {
ALOGE("Failed to add obj_id: %u, prop_id: %u (%s) to pset", obj_id_, id_,
name_.c_str());
return false;
}
return true;
}
} // namespace android
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