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/*
* Copyright 2018 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.
*/
#pragma once
#include <array>
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include <ui/DeviceProductInfo.h>
#include <ui/DisplayId.h>
#define LEGACY_DISPLAY_TYPE_PRIMARY 0
#define LEGACY_DISPLAY_TYPE_EXTERNAL 1
namespace android {
using DisplayIdentificationData = std::vector<uint8_t>;
struct DisplayIdentificationInfo {
PhysicalDisplayId id;
std::string name;
std::optional<DeviceProductInfo> deviceProductInfo;
};
struct ExtensionBlock {
uint8_t tag;
uint8_t revisionNumber;
};
struct HdmiPhysicalAddress {
// The address describes the path from the display sink in the network of connected HDMI
// devices. The format of the address is "a.b.c.d". For example, address 2.1.0.0 means we are
// connected to port 1 of a device which is connected to port 2 of the sink.
uint8_t a, b, c, d;
};
struct HdmiVendorDataBlock {
HdmiPhysicalAddress physicalAddress;
};
struct Cea861ExtensionBlock : ExtensionBlock {
std::optional<HdmiVendorDataBlock> hdmiVendorDataBlock;
};
struct Edid {
uint16_t manufacturerId;
uint16_t productId;
PnpId pnpId;
uint32_t modelHash;
std::string_view displayName;
uint8_t manufactureOrModelYear;
uint8_t manufactureWeek;
std::optional<Cea861ExtensionBlock> cea861Block;
};
bool isEdid(const DisplayIdentificationData&);
std::optional<Edid> parseEdid(const DisplayIdentificationData&);
std::optional<PnpId> getPnpId(uint16_t manufacturerId);
std::optional<PnpId> getPnpId(PhysicalDisplayId);
std::optional<DisplayIdentificationInfo> parseDisplayIdentificationData(
uint8_t port, const DisplayIdentificationData&);
PhysicalDisplayId getVirtualDisplayId(uint32_t id);
} // namespace android
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