Kernel/SysFS: Split the bulky BIOS.h file into multiple files

Author: https://github.com/supercomputer7
Commit: 4d05a41b30
Pull-request: https://github.com/SerenityOS/serenity/pull/13772

Kernel/FileSystem/SysFS/Subsystems/Firmware/BIOS/Directory.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/RefPtr.h>
+#include <AK/Types.h>
+#include <AK/Vector.h>
+#include <Kernel/FileSystem/SysFS.h>
+#include <Kernel/FileSystem/SysFS/Subsystems/Firmware/Directory.h>
+#include <Kernel/PhysicalAddress.h>
+
+namespace Kernel {
+
+class BIOSSysFSDirectory : public SysFSDirectory {
+public:
+    virtual StringView name() const override { return "bios"sv; }
+    static NonnullRefPtr<BIOSSysFSDirectory> must_create(FirmwareSysFSDirectory&);
+
+    void create_components();
+
+private:
+    explicit BIOSSysFSDirectory(FirmwareSysFSDirectory&);
+
+    void set_dmi_64_bit_entry_initialization_values();
+    void set_dmi_32_bit_entry_initialization_values();
+    void initialize_dmi_exposer();
+
+    Optional<PhysicalAddress> find_dmi_entry64bit_point();
+    Optional<PhysicalAddress> find_dmi_entry32bit_point();
+
+    PhysicalAddress m_dmi_entry_point;
+    PhysicalAddress m_smbios_structure_table;
+    bool m_using_64bit_dmi_entry_point { false };
+    size_t m_smbios_structure_table_length { 0 };
+    size_t m_dmi_entry_point_length { 0 };
+};
+
+}