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66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
#include "idt.hpp"
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#include "portio.hpp"
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#include "vgaterminal.hpp"
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#include <array>
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#include <cstdint>
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#define K_CONTROL_L -1
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#define K_SHIFT_L -2
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#define K_ALT_L -3
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#define K_CAPS -4
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#define K_NUM -5
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#define K_SCROLL -6
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#define K_SHIFT_R -7
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#define K_ESCAPE -8
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#define K_F1 -10
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#define K_F2 -11
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#define K_F3 -12
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#define K_F4 -13
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#define K_F5 -14
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#define K_F6 -15
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#define K_F7 -16
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#define K_F8 -17
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#define K_F9 -18
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#define K_F10 -19
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#define K_F11 -20
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#define K_F12 -21
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extern TextOutput& term;
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static const std::array<char, 0x59> ScanCodeSet1 {{
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0, K_ESCAPE,
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'1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
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'-', '=', '\b', '\t',
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '[', ']', '\n', K_CONTROL_L,
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'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ';', '\'', '`', K_SHIFT_L, '\\',
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'Z', 'X', 'C', 'V', 'B', 'N', 'M', ',', '.', '/',
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K_SHIFT_R, '*', K_ALT_L, ' ', K_CAPS,
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K_F1, K_F2, K_F3, K_F4, K_F5, K_F6, K_F7, K_F8, K_F9, K_F10,
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K_NUM, K_SCROLL, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.',
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0, 0, 0, // non-existant
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K_F11, K_F12
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}};
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static constexpr bool isReleased(auto ch) {
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return ch & 0x80;
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}
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static constexpr auto keycode(auto ch) {
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return ch & 0x7F;
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}
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void keyboard_initialize()
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{
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idt_register_callback(33, [](auto& regs) {
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const auto kc = inb(0x60);
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if (!isReleased(kc)) {
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const auto ch = ScanCodeSet1[keycode(kc)];
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if (ch > 0)
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term.write(ch);
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}
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});
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}
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