103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
#pragma once
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#include <BAN/ByteSpan.h>
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#include <BAN/Optional.h>
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#include <BAN/String.h>
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#include <BAN/UniqPtr.h>
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#include <BAN/Variant.h>
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#include <BAN/Vector.h>
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#include <kernel/ACPI/AML/NameObject.h>
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namespace Kernel::ACPI::AML
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{
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// ACPI Spec 6.4, Section 20.2.3
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// Integer := ByteConst | WordConst | DWordConst | QWordConst
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// Not actually defined in the spec...
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struct Integer
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{
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uint64_t value;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<Integer> parse(BAN::ConstByteSpan& span);
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};
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// Buffer := BufferOp PkgLength BufferSize ByteList
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struct Buffer
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{
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Integer buffer_size;
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BAN::Vector<uint8_t> data;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<Buffer> parse(BAN::ConstByteSpan& span);
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};
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// ComputationalData := Integer | String | ConstObj | RevisionOp | DefBuffer
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struct ComputationalData
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{
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struct String
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{
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BAN::String value;
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};
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struct ConstObj
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{
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enum class Type
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{
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Zero,
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One,
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Ones
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};
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Type type;
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};
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struct RevisionOp {};
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BAN::Variant<Integer, String, ConstObj, RevisionOp, Buffer> data;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<ComputationalData> parse(BAN::ConstByteSpan& span);
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};
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struct DataRefObject;
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struct Uninitialized {};
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// PackageElement := DataRefObject | NameString
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using PackageElement = BAN::Variant<BAN::UniqPtr<DataRefObject>, NameString, Uninitialized>;
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// DefPackage := PackageOp PkgLength NumElements PackageElementList
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struct Package
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{
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BAN::Vector<PackageElement> elements;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<Package> parse(BAN::ConstByteSpan& span);
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};
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// DefVarPackage := VarPackageOp PkgLength VarNumElements PackageElementList
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struct VarPackage
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{
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BAN::Vector<PackageElement> elements;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<VarPackage> parse(BAN::ConstByteSpan& span);
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};
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// DataObject := ComputationalData | DefPackage | DefVarPackage
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struct DataObject
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{
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BAN::Variant<ComputationalData, Package, VarPackage> data;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<DataObject> parse(BAN::ConstByteSpan& span);
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};
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// DataRefObject := DataObject | ObjectReference
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struct DataRefObject
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{
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BAN::Variant<DataObject, Integer> object;
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static bool can_parse(BAN::ConstByteSpan span);
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static BAN::Optional<DataRefObject> parse(BAN::ConstByteSpan& span);
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};
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}
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