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86 lines
2.3 KiB
86 lines
2.3 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <array>
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#include <cstdint>
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#include <optional>
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#include <string>
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#include <string_view>
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#include <vector>
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#include <ui/DeviceProductInfo.h>
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#include <ui/DisplayId.h>
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#define LEGACY_DISPLAY_TYPE_PRIMARY 0
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#define LEGACY_DISPLAY_TYPE_EXTERNAL 1
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namespace android {
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using DisplayIdentificationData = std::vector<uint8_t>;
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struct DisplayIdentificationInfo {
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PhysicalDisplayId id;
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std::string name;
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std::optional<DeviceProductInfo> deviceProductInfo;
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};
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struct ExtensionBlock {
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uint8_t tag;
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uint8_t revisionNumber;
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};
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struct HdmiPhysicalAddress {
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// The address describes the path from the display sink in the network of connected HDMI
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// devices. The format of the address is "a.b.c.d". For example, address 2.1.0.0 means we are
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// connected to port 1 of a device which is connected to port 2 of the sink.
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uint8_t a, b, c, d;
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};
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struct HdmiVendorDataBlock {
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HdmiPhysicalAddress physicalAddress;
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};
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struct Cea861ExtensionBlock : ExtensionBlock {
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std::optional<HdmiVendorDataBlock> hdmiVendorDataBlock;
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};
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struct Edid {
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uint16_t manufacturerId;
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uint16_t productId;
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PnpId pnpId;
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uint32_t modelHash;
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std::string_view displayName;
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uint8_t manufactureOrModelYear;
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uint8_t manufactureWeek;
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std::optional<Cea861ExtensionBlock> cea861Block;
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};
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bool isEdid(const DisplayIdentificationData&);
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std::optional<Edid> parseEdid(const DisplayIdentificationData&);
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std::optional<PnpId> getPnpId(uint16_t manufacturerId);
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std::optional<PnpId> getPnpId(PhysicalDisplayId);
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std::optional<DisplayIdentificationInfo> parseDisplayIdentificationData(
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uint8_t port, const DisplayIdentificationData&);
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PhysicalDisplayId getVirtualDisplayId(uint32_t id);
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} // namespace android
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