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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Graphics/Console/TextModeConsole.h>
#include <Kernel/Graphics/GraphicsManagement.h>
#include <Kernel/IO.h>
#include <Kernel/Sections.h>
namespace Kernel::Graphics {
UNMAP_AFTER_INIT NonnullRefPtr<TextModeConsole> TextModeConsole::initialize(const VGACompatibleAdapter& adapter)
{
return adopt_ref(*new TextModeConsole(adapter));
}
UNMAP_AFTER_INIT TextModeConsole::TextModeConsole(const VGACompatibleAdapter& adapter)
: VGAConsole(adapter, VGAConsole::Mode::TextMode, 80, 25)
, m_current_vga_window(m_vga_region->vaddr().offset(0x18000).as_ptr())
{
for (size_t index = 0; index < height(); index++) {
clear_vga_row(index);
}
dbgln("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 TextModeConsole::set_cursor(size_t x, size_t y)
{
ScopedSpinLock main_lock(GraphicsManagement::the().main_vga_lock());
ScopedSpinLock lock(m_vga_lock);
m_cursor_x = x;
m_cursor_y = y;
u16 value = m_current_vga_start_address + (y * width() + x);
IO::out8(0x3d4, 0x0e);
IO::out8(0x3d5, MSB(value));
IO::out8(0x3d4, 0x0f);
IO::out8(0x3d5, LSB(value));
}
void TextModeConsole::hide_cursor()
{
ScopedSpinLock main_lock(GraphicsManagement::the().main_vga_lock());
ScopedSpinLock lock(m_vga_lock);
IO::out8(0x3D4, 0xA);
IO::out8(0x3D5, 0x20);
}
void TextModeConsole::show_cursor()
{
ScopedSpinLock main_lock(GraphicsManagement::the().main_vga_lock());
ScopedSpinLock lock(m_vga_lock);
IO::out8(0x3D4, 0xA);
IO::out8(0x3D5, 0x20);
}
void TextModeConsole::clear(size_t x, size_t y, size_t length)
{
ScopedSpinLock lock(m_vga_lock);
auto* buf = (u16*)(m_current_vga_window + (x * 2) + (y * width() * 2));
for (size_t index = 0; index < length; index++) {
buf[index] = 0x0720;
}
}
void TextModeConsole::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 TextModeConsole::write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical)
{
ScopedSpinLock 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
ScopedSpinLock main_lock(GraphicsManagement::the().main_vga_lock());
IO::out8(0x3D4, 0xA);
IO::out8(0x3D5, 0x20);
m_x = 0;
m_y += 1;
if (m_y >= max_row())
m_y = 0;
return;
}
auto* buf = (u16*)(m_current_vga_window + (x * 2) + (y * width() * 2));
*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 TextModeConsole::clear_vga_row(u16 row)
{
clear(row * width(), width(), width());
}
void TextModeConsole::set_vga_start_row(u16 row)
{
ScopedSpinLock lock(m_vga_lock);
m_vga_start_row = row;
m_current_vga_start_address = row * width();
m_current_vga_window = m_current_vga_window + row * width() * bytes_per_base_glyph();
IO::out8(0x3d4, 0x0c);
IO::out8(0x3d5, MSB(m_current_vga_start_address));
IO::out8(0x3d4, 0x0d);
IO::out8(0x3d5, LSB(m_current_vga_start_address));
}
void TextModeConsole::write(char ch, bool critical)
{
write(m_x, m_y, ch, critical);
}
}
|
