107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
#pragma once
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#include <kernel/ACPI/AML/NamedObject.h>
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#include <kernel/ACPI/AML/Namespace.h>
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#include <kernel/ACPI/AML/ParseContext.h>
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namespace Kernel::ACPI::AML
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{
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struct OpRegion : public NamedObject
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{
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using RegionSpace = GAS::AddressSpaceID;
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RegionSpace region_space;
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uint64_t region_offset;
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uint64_t region_length;
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Kernel::Mutex mutex;
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OpRegion(NameSeg name, RegionSpace region_space, uint64_t region_offset, uint64_t region_length)
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: NamedObject(Node::Type::OpRegion, name)
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, region_space(region_space)
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, region_offset(region_offset)
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, region_length(region_length)
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{}
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static ParseResult parse(AML::ParseContext& context)
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{
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ASSERT(context.aml_data.size() > 2);
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ASSERT(static_cast<Byte>(context.aml_data[0]) == Byte::ExtOpPrefix);
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ASSERT(static_cast<ExtOp>(context.aml_data[1]) == ExtOp::OpRegionOp);
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context.aml_data = context.aml_data.slice(2);
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auto name = NameString::parse(context.aml_data);
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if (!name.has_value())
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return ParseResult::Failure;
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if (context.aml_data.size() < 1)
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return ParseResult::Failure;
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auto region_space = static_cast<RegionSpace>(context.aml_data[0]);
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context.aml_data = context.aml_data.slice(1);
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auto offset_result = AML::parse_object(context);
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if (!offset_result.success())
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return ParseResult::Failure;
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auto offset = offset_result.node()->as_integer();
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if (!offset.has_value())
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{
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AML_ERROR("OpRegion offset must be an integer");
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return ParseResult::Failure;
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}
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auto length_result = AML::parse_object(context);
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if (!length_result.success())
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return ParseResult::Failure;
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auto length = length_result.node()->as_integer();
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if (!length.has_value())
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{
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AML_ERROR("OpRegion length must be an integer");
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return ParseResult::Failure;
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}
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auto op_region = MUST(BAN::RefPtr<OpRegion>::create(
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name->path.back(),
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region_space,
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offset.value(),
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length.value()
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));
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if (!Namespace::root_namespace()->add_named_object(context, name.value(), op_region))
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return ParseResult::Failure;
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#if AML_DEBUG_LEVEL >= 2
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op_region->debug_print(0);
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AML_DEBUG_PRINTLN("");
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#endif
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return ParseResult::Success;
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}
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virtual void debug_print(int indent) const override
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{
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BAN::StringView region_space_name;
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switch (region_space)
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{
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case RegionSpace::SystemMemory: region_space_name = "SystemMemory"_sv; break;
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case RegionSpace::SystemIO: region_space_name = "SystemIO"_sv; break;
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case RegionSpace::PCIConfig: region_space_name = "PCIConfig"_sv; break;
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case RegionSpace::EmbeddedController: region_space_name = "EmbeddedController"_sv; break;
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case RegionSpace::SMBus: region_space_name = "SMBus"_sv; break;
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case RegionSpace::SystemCMOS: region_space_name = "SystemCMOS"_sv; break;
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case RegionSpace::PCIBarTarget: region_space_name = "PCIBarTarget"_sv; break;
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case RegionSpace::IPMI: region_space_name = "IPMI"_sv; break;
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case RegionSpace::GeneralPurposeIO: region_space_name = "GeneralPurposeIO"_sv; break;
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case RegionSpace::GenericSerialBus: region_space_name = "GenericSerialBus"_sv; break;
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case RegionSpace::PlatformCommunicationChannel: region_space_name = "PlatformCommunicationChannel"_sv; break;
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default: region_space_name = "Unknown"_sv; break;
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}
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AML_DEBUG_PRINT_INDENT(indent);
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AML_DEBUG_PRINT("OperationRegion(");
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name.debug_print();
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AML_DEBUG_PRINT(", {}, 0x{H}, 0x{H})", region_space_name, region_offset, region_length);
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}
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};
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}
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