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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.
*/
#include "drmproperty.h"
#include "drmdevice.h"
#include <errno.h>
#include <stdint.h>
#include <string>
#include <xf86drmMode.h>
#include <log/log.h>
#include <inttypes.h>
#include <utils/Errors.h>
static inline int64_t U642I64(uint64_t val) {
return *(reinterpret_cast<int64_t *>(&val));
}
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) || (flags_ & DRM_MODE_PROP_SIGNED_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_.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_BITMASK:
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);
}
}
void DrmProperty::printProperty() const
{
ALOGD("=====================================================");
ALOGD("name: %s, type(%d), value_(%" PRId64 ")", name_.c_str(), type_, value_);
ALOGD("values.size(%zu)", values_.size());
for (uint32_t i = 0; i < values_.size(); i++) {
ALOGD("[%d] %" PRId64 "", i, values_[i]);
}
ALOGD("enums.size(%zu)", enums_.size());
uint32_t i = 0;
for (auto const &it : enums_) {
ALOGD("[%d] %s %" PRId64 "", i++, it.name_.c_str(), it.value_);
}
}
bool DrmProperty::isImmutable() const {
return id_ && (flags_ & DRM_MODE_PROP_IMMUTABLE);
}
bool DrmProperty::isRange() const {
return id_ && (flags_ & DRM_MODE_PROP_RANGE);
}
bool DrmProperty::isSignedRange() const {
return (flags_ & DRM_MODE_PROP_EXTENDED_TYPE) == DRM_MODE_PROP_SIGNED_RANGE;
}
bool DrmProperty::isBitmask() const {
return id_ && (flags_ & DRM_MODE_PROP_BITMASK);
}
std::tuple<int, uint64_t> DrmProperty::rangeMin() const {
if (!isRange())
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::rangeMax() const {
if (!isRange())
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);
}
bool DrmProperty::validateChange(uint64_t value) const {
if (isImmutable()) {
ALOGE("%s: %s is immutable drm property (%zu)", __func__, name().c_str());
return false;
} else if (isRange()) {
if (value < values_[0] || value > values_[1]) {
ALOGE("%s: range property %s set to %" PRIu64 " is invalid [%" PRIu64 "-%" PRIu64 "]",
__func__, name().c_str(), value, values_[0], values_[1]);
return false;
}
} else if (isSignedRange()) {
int64_t svalue = U642I64(value);
if (svalue < U642I64(values_[0]) || svalue > U642I64(values_[1])) {
ALOGE("%s: signed property %s set to %" PRIi64 " is invalid [%" PRIi64 "-%" PRIi64 "]",
__func__, name().c_str(), svalue, U642I64(values_[0]), U642I64(values_[1]));
return false;
}
} else if (isBitmask()) {
uint64_t valid_mask = 0;
for (auto i = 0; i < values_.size(); i++) {
valid_mask |= (1ULL << values_[i]);
}
if (value & ~valid_mask) {
ALOGE("%s: bitmask property %s set to 0x%" PRIx64 " is invalid [0x%" PRIx64 "]", __func__,
name().c_str(), value, valid_mask);
return false;
}
}
return true;
}
void DrmProperty::updateValue(uint64_t value) {
value_ = value;
}
std::tuple<uint64_t, int> DrmEnumParser::halToDrmEnum(const uint32_t halData,
const MapHal2DrmEnum& drmEnums) {
auto it = drmEnums.find(halData);
if (it != drmEnums.end()) {
return std::make_tuple(it->second, NO_ERROR);
} else {
ALOGE("%s: Failed to find standard enum(%d)", __func__, halData);
return std::make_tuple(0, -EINVAL);
}
}
void DrmEnumParser::parseEnums(const DrmProperty &property,
const std::vector<std::pair<uint32_t, const char *>> &enums,
MapHal2DrmEnum& out_enums) {
uint64_t value;
int err;
for (auto &e : enums) {
std::tie(value, err) = property.getEnumValueWithName(e.second);
if (err) {
ALOGE("%s: Fail to find enum value with name %s", __func__, e.second);
} else {
out_enums[e.first] = value;
}
}
}
} // namespace android
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