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/*
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Types.h>
#include <Kernel/ACPI/Definitions.h>
#include <Kernel/ACPI/Initialize.h>
#include <Kernel/FileSystem/SysFSComponent.h>
#include <Kernel/Memory/Region.h>
#include <Kernel/PhysicalAddress.h>
#include <Kernel/VirtualAddress.h>
namespace Kernel::ACPI {
class ACPISysFSDirectory : public SysFSDirectory {
public:
static void initialize();
private:
ACPISysFSDirectory();
};
class ACPISysFSComponent : public SysFSComponent {
public:
static NonnullRefPtr<ACPISysFSComponent> create(String name, PhysicalAddress, size_t table_size);
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, FileDescription*) const override;
protected:
OwnPtr<KBuffer> try_to_generate_buffer() const;
ACPISysFSComponent(String name, PhysicalAddress, size_t table_size);
PhysicalAddress m_paddr;
size_t m_length;
};
class Parser {
public:
static Parser* the();
template<typename ParserType>
static void initialize(PhysicalAddress rsdp)
{
set_the(*new ParserType(rsdp));
}
virtual PhysicalAddress find_table(const StringView& signature);
virtual void try_acpi_reboot();
virtual bool can_reboot();
virtual void try_acpi_shutdown();
virtual bool can_shutdown() { return false; }
PhysicalAddress rsdp() const { return m_rsdp; }
PhysicalAddress main_system_description_table() const { return m_main_system_description_table; }
bool is_xsdt_supported() const { return m_xsdt_supported; }
void enumerate_static_tables(Function<void(const StringView&, PhysicalAddress, size_t)>);
virtual bool have_8042() const
{
return m_x86_specific_flags.keyboard_8042;
}
const FADTFlags::HardwareFeatures& hardware_features() const { return m_hardware_flags; }
const FADTFlags::x86_Specific_Flags& x86_specific_flags() const { return m_x86_specific_flags; }
virtual void enable_aml_interpretation();
virtual void enable_aml_interpretation(File&);
virtual void enable_aml_interpretation(u8*, u32);
virtual void disable_aml_interpretation();
protected:
explicit Parser(PhysicalAddress rsdp);
virtual ~Parser() = default;
private:
static void set_the(Parser&);
void locate_static_data();
void locate_main_system_description_table();
void initialize_main_system_description_table();
size_t get_table_size(PhysicalAddress);
u8 get_table_revision(PhysicalAddress);
void init_fadt();
void init_facs();
bool validate_reset_register();
void access_generic_address(const Structures::GenericAddressStructure&, u32 value);
PhysicalAddress m_rsdp;
PhysicalAddress m_main_system_description_table;
Vector<PhysicalAddress> m_sdt_pointers;
PhysicalAddress m_fadt;
PhysicalAddress m_facs;
bool m_xsdt_supported { false };
FADTFlags::HardwareFeatures m_hardware_flags;
FADTFlags::x86_Specific_Flags m_x86_specific_flags;
};
}
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