1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/x86/IO.h>
#include <Kernel/Graphics/Console/VGATextModeConsole.h>
#include <Kernel/Graphics/GraphicsManagement.h>
#include <Kernel/Sections.h>
namespace Kernel::Graphics {
UNMAP_AFTER_INIT NonnullLockRefPtr<VGATextModeConsole> VGATextModeConsole::initialize()
{
auto vga_window_size = MUST(Memory::page_round_up(0xc0000 - 0xa0000));
auto vga_window_region = MUST(MM.allocate_kernel_region(PhysicalAddress(0xa0000), vga_window_size, "VGA Display"sv, Memory::Region::Access::ReadWrite));
return adopt_lock_ref(*new (nothrow) VGATextModeConsole(move(vga_window_region)));
}
UNMAP_AFTER_INIT VGATextModeConsole::VGATextModeConsole(NonnullOwnPtr<Memory::Region> vga_window_region)
: Console(80, 25)
, m_vga_window_region(move(vga_window_region))
, m_current_vga_window(m_vga_window_region->vaddr().offset(0x18000).as_ptr())
{
for (size_t index = 0; index < height(); index++) {
clear_vga_row(index);
}
dbgln("VGA Text mode console initialized!");
}
enum VGAColor : u8 {
Black = 0,
Blue,
Green,
Cyan,
Red,
Magenta,
Brown,
LightGray,
DarkGray,
BrightBlue,
BrightGreen,
BrightCyan,
BrightRed,
BrightMagenta,
Yellow,
White,
};
[[maybe_unused]] static inline VGAColor convert_standard_color_to_vga_color(Console::Color color)
{
switch (color) {
case Console::Color::Black:
return VGAColor::Black;
case Console::Color::Red:
return VGAColor::Red;
case Console::Color::Brown:
return VGAColor::Brown;
case Console::Color::Blue:
return VGAColor::Blue;
case Console::Color::Magenta:
return VGAColor::Magenta;
case Console::Color::Green:
return VGAColor::Green;
case Console::Color::Cyan:
return VGAColor::Cyan;
case Console::Color::LightGray:
return VGAColor::LightGray;
case Console::Color::DarkGray:
return VGAColor::DarkGray;
case Console::Color::BrightRed:
return VGAColor::BrightRed;
case Console::Color::BrightGreen:
return VGAColor::BrightGreen;
case Console::Color::Yellow:
return VGAColor::Yellow;
case Console::Color::BrightBlue:
return VGAColor::BrightBlue;
case Console::Color::BrightMagenta:
return VGAColor::BrightMagenta;
case Console::Color::BrightCyan:
return VGAColor::BrightCyan;
case Console::Color::White:
return VGAColor::White;
default:
VERIFY_NOT_REACHED();
}
}
void VGATextModeConsole::set_cursor(size_t x, size_t y)
{
SpinlockLocker lock(m_vga_lock);
GraphicsManagement::the().set_vga_text_mode_cursor(width(), x, y);
m_x = x;
m_y = y;
}
void VGATextModeConsole::hide_cursor()
{
SpinlockLocker lock(m_vga_lock);
GraphicsManagement::the().disable_vga_text_mode_console_cursor();
}
void VGATextModeConsole::show_cursor()
{
set_cursor(m_x, m_y);
}
void VGATextModeConsole::clear(size_t x, size_t y, size_t length)
{
SpinlockLocker lock(m_vga_lock);
auto* buf = (u16*)m_current_vga_window.offset((x * 2) + (y * width() * 2)).as_ptr();
for (size_t index = 0; index < length; index++) {
buf[index] = 0x0720;
}
}
void VGATextModeConsole::write(size_t x, size_t y, char ch, bool critical)
{
write(x, y, ch, m_default_background_color, m_default_foreground_color, critical);
}
void VGATextModeConsole::write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical)
{
SpinlockLocker lock(m_vga_lock);
// If we are in critical printing mode, we need to handle new lines here
// because there's no other responsible object to do that in the print call path
if (critical && (ch == '\r' || ch == '\n')) {
// Disable hardware VGA cursor
GraphicsManagement::the().disable_vga_text_mode_console_cursor();
m_x = 0;
m_y += 1;
if (m_y >= max_row())
m_y = 0;
return;
}
auto* buf = (u16*)m_current_vga_window.offset((x * 2) + (y * width() * 2)).as_ptr();
*buf = foreground << 8 | background << 12 | ch;
m_x = x + 1;
if (m_x >= max_column()) {
m_x = 0;
m_y = y + 1;
if (m_y >= max_row())
m_y = 0;
}
}
void VGATextModeConsole::clear_vga_row(u16 row)
{
clear(0, row, width());
}
void VGATextModeConsole::write(char ch, bool critical)
{
write(m_x, m_y, ch, critical);
}
}
|
