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https://github.com/RGBCube/serenity
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48f3d762af
The new VGAIOArbiter class is now responsible to conduct x86-specific instructions to control VGA hardware from the old ISA ports. This allows us to ensure the GraphicsManagement code doesn't use x86-specific code, thus allowing it to be compiled within non-x86 kernel builds.
40 lines
1 KiB
C++
40 lines
1 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullOwnPtr.h>
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#include <AK/Platform.h>
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#include <AK/Types.h>
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#include <Kernel/Locking/Spinlock.h>
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namespace Kernel {
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class GraphicsManagement;
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class VGAIOArbiter {
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public:
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static NonnullOwnPtr<VGAIOArbiter> must_create(Badge<GraphicsManagement>);
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void disable_vga_emulation_access_permanently(Badge<GraphicsManagement>);
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void enable_vga_text_mode_console_cursor(Badge<GraphicsManagement>);
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void disable_vga_text_mode_console_cursor(Badge<GraphicsManagement>);
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void set_vga_text_mode_cursor(Badge<GraphicsManagement>, size_t console_width, size_t x, size_t y);
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void unblank_screen(Badge<GraphicsManagement>);
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~VGAIOArbiter();
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private:
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VGAIOArbiter();
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void disable_vga_text_mode_console_cursor();
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void enable_vga_text_mode_console_cursor();
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RecursiveSpinlock m_main_vga_lock { LockRank::None };
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bool m_vga_access_is_disabled { false };
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};
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}
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