jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021-2022, Liav A. <liavalb@hotmail.co.il>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <AK/NonnullOwnPtr.h>
10#include <AK/Platform.h>
11#include <AK/Types.h>
12#if ARCH(X86_64)
13# include <Kernel/Arch/x86_64/VGA/IOArbiter.h>
14#endif
15#include <Kernel/Bus/PCI/Definitions.h>
16#include <Kernel/Graphics/Console/Console.h>
17#include <Kernel/Graphics/DisplayConnector.h>
18#include <Kernel/Graphics/Generic/DisplayConnector.h>
19#include <Kernel/Graphics/GenericGraphicsAdapter.h>
20#include <Kernel/Graphics/VirtIOGPU/GraphicsAdapter.h>
21#include <Kernel/Library/NonnullLockRefPtr.h>
22#include <Kernel/Memory/Region.h>
23
24namespace Kernel {
25
26class GraphicsManagement {
27
28public:
29 static GraphicsManagement& the();
30 static bool is_initialized();
31 bool initialize();
32
33 unsigned allocate_minor_device_number() { return m_current_minor_number++; };
34 GraphicsManagement();
35
36 void attach_new_display_connector(Badge<DisplayConnector>, DisplayConnector&);
37 void detach_display_connector(Badge<DisplayConnector>, DisplayConnector&);
38
39 void set_vga_text_mode_cursor(size_t console_width, size_t x, size_t y);
40 void disable_vga_text_mode_console_cursor();
41 void disable_vga_emulation_access_permanently();
42
43 LockRefPtr<Graphics::Console> console() const { return m_console; }
44 void set_console(Graphics::Console&);
45
46 void deactivate_graphical_mode();
47 void activate_graphical_mode();
48
49private:
50 void enable_vga_text_mode_console_cursor();
51
52 ErrorOr<void> determine_and_initialize_graphics_device(PCI::DeviceIdentifier const&);
53
54 void initialize_preset_resolution_generic_display_connector();
55
56 Vector<NonnullLockRefPtr<GenericGraphicsAdapter>> m_graphics_devices;
57 LockRefPtr<Graphics::Console> m_console;
58
59 // Note: This is only used when booting with kernel commandline that includes "graphics_subsystem_mode=limited"
60 LockRefPtr<GenericDisplayConnector> m_preset_resolution_generic_display_connector;
61
62 LockRefPtr<DisplayConnector> m_platform_board_specific_display_connector;
63
64 unsigned m_current_minor_number { 0 };
65
66 SpinlockProtected<IntrusiveList<&DisplayConnector::m_list_node>, LockRank::None> m_display_connector_nodes {};
67#if ARCH(X86_64)
68 OwnPtr<VGAIOArbiter> m_vga_arbiter;
69#endif
70};
71
72}