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/*
 * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <AK/OwnPtr.h>
#include <Kernel/ACPI/ACPIParser.h>

namespace Kernel {
namespace ACPI {

class StaticParser : public Parser {
    friend class Parser;

public:
    virtual PhysicalAddress find_table(const StringView& signature) override;
    virtual void try_acpi_reboot() override;
    virtual bool can_reboot() override;
    virtual bool can_shutdown() override { return false; }
    virtual void try_acpi_shutdown() override;

    virtual const FADTFlags::HardwareFeatures& hardware_features() const override;
    virtual const FADTFlags::x86_Specific_Flags& x86_specific_flags() const override;

protected:
    explicit StaticParser(PhysicalAddress rsdp);

private:
    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;
    FADTFlags::HardwareFeatures m_hardware_flags;
    FADTFlags::x86_Specific_Flags m_x86_specific_flags;
};
}
}