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/*
* Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullOwnPtr.h>
#include <AK/NonnullRefPtr.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/Types.h>
#include <Kernel/Bus/PCI/Definitions.h>
#include <Kernel/Graphics/Console/Console.h>
#include <Kernel/Graphics/DisplayConnector.h>
#include <Kernel/Graphics/GenericGraphicsAdapter.h>
#include <Kernel/Graphics/VGA/VGACompatibleAdapter.h>
#include <Kernel/Graphics/VirtIOGPU/GraphicsAdapter.h>
#include <Kernel/Memory/Region.h>
namespace Kernel {
class GraphicsManagement {
public:
static GraphicsManagement& the();
static bool is_initialized();
bool initialize();
unsigned allocate_minor_device_number() { return m_current_minor_number++; };
GraphicsManagement();
void attach_new_display_connector(Badge<DisplayConnector>, DisplayConnector&);
void detach_display_connector(Badge<DisplayConnector>, DisplayConnector&);
void set_vga_text_mode_cursor(size_t console_width, size_t x, size_t y);
void disable_vga_text_mode_console_cursor();
void disable_vga_emulation_access_permanently();
RefPtr<Graphics::Console> console() const { return m_console; }
void set_console(Graphics::Console&);
void deactivate_graphical_mode();
void activate_graphical_mode();
private:
void enable_vga_text_mode_console_cursor();
bool determine_and_initialize_graphics_device(PCI::DeviceIdentifier const&);
bool determine_and_initialize_isa_graphics_device();
NonnullRefPtrVector<GenericGraphicsAdapter> m_graphics_devices;
RefPtr<Graphics::Console> m_console;
// Note: This is only used when booting with kernel commandline that includes "graphics_subsystem_mode=limited"
RefPtr<GenericDisplayConnector> m_preset_resolution_generic_display_connector;
// Note: there could be multiple VGA adapters, but only one can operate in VGA mode
RefPtr<VGACompatibleAdapter> m_vga_adapter;
unsigned m_current_minor_number { 0 };
IntrusiveList<&DisplayConnector::m_list_node> m_display_connector_nodes;
RecursiveSpinlock m_main_vga_lock;
bool m_vga_access_is_disabled { false };
};
}
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