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/*
* 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)
{
SpinlockLocker main_lock(GraphicsManagement::the().main_vga_lock());
SpinlockLocker lock(m_vga_lock);
u16 value = 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()
{
SpinlockLocker main_lock(GraphicsManagement::the().main_vga_lock());
SpinlockLocker lock(m_vga_lock);
IO::out8(0x3D4, 0xA);
IO::out8(0x3D5, 0x20);
}
void TextModeConsole::show_cursor()
{
SpinlockLocker main_lock(GraphicsManagement::the().main_vga_lock());
SpinlockLocker lock(m_vga_lock);
IO::out8(0x3D4, 0xA);
IO::out8(0x3D5, 0x20);
}
void TextModeConsole::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 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)
{
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
SpinlockLocker 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.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 TextModeConsole::clear_vga_row(u16 row)
{
clear(row * width(), width(), width());
}
void TextModeConsole::write(char ch, bool critical)
{
write(m_x, m_y, ch, critical);
}
}
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