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https://github.com/RGBCube/serenity
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85307dd26e
Now the ACPI & PCI code is more safer, because we don't use raw pointers or references to objects or data that are located in the physical address space, so an accidental dereference cannot happen easily. Instead, we use the PhysicalAddress class to represent those addresses.
71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <ACPI/ACPIParser.h>
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#include <AK/OwnPtr.h>
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namespace Kernel {
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class ACPIStaticParser : ACPIParser {
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public:
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static void initialize(PhysicalAddress rsdp);
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static void initialize_without_rsdp();
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static bool is_initialized();
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virtual PhysicalAddress find_table(const char* sig) override;
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virtual void do_acpi_reboot() override;
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virtual void do_acpi_shutdown() override;
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virtual bool is_operable() override { return m_operable; }
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protected:
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ACPIStaticParser();
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explicit ACPIStaticParser(PhysicalAddress);
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private:
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void locate_static_data();
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void locate_all_aml_tables();
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void locate_main_system_description_table();
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void initialize_main_system_description_table();
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size_t get_table_size(PhysicalAddress);
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u8 get_table_revision(PhysicalAddress);
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void init_fadt();
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PhysicalAddress search_rsdp_in_ebda(u16 ebda_segment);
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PhysicalAddress search_rsdp_in_bios_area();
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PhysicalAddress search_rsdp();
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PhysicalAddress m_rsdp;
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PhysicalAddress m_main_system_description_table;
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OwnPtr<ACPI::MainSystemDescriptionTable> m_main_sdt;
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OwnPtr<ACPI::FixedACPIData> m_fadt;
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Vector<ACPI_RAW::SDTHeader*> m_aml_tables_ptrs;
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bool m_xsdt_supported;
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};
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}
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