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/*
* Copyright (c) 2020-2021, Liav A. <liavalb@hotmail.co.il>
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Boot/CommandLine.h>
#include <Kernel/Firmware/ACPI/Parser.h>
#include <Kernel/Memory/TypedMapping.h>
#include <Kernel/Sections.h>
namespace Kernel::ACPI {
UNMAP_AFTER_INIT void initialize()
{
auto feature_level = kernel_command_line().acpi_feature_level();
if (feature_level == AcpiFeatureLevel::Disabled)
return;
auto rsdp = StaticParsing::find_rsdp();
if (!rsdp.has_value())
return;
auto facp = StaticParsing::find_table(rsdp.value(), "FACP"sv);
if (!facp.has_value())
return;
auto facp_table_or_error = Memory::map_typed<Structures::FADT>(facp.value());
if (facp_table_or_error.is_error())
return;
u8 irq_line = facp_table_or_error.value()->sci_int;
Parser::must_initialize(rsdp.value(), facp.value(), irq_line);
if (kernel_command_line().acpi_feature_level() == AcpiFeatureLevel::Enabled)
Parser::the()->enable_aml_parsing();
}
bool is_enabled()
{
return Parser::the();
}
}
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