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extremely basicc but working keyboard interrupt handler

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shockrahwow 2019-11-29 13:37:20 -08:00
parent 9e97ca3d28
commit df5058ad4c
2 changed files with 59 additions and 1 deletions
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58
kbd.c Normal file
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@ -0,0 +1,58 @@
// US Keyboard layout because 'Murrica
#include "kbd.h"
#include "ports.h"
#include "serial.h"
#include "types.h"
#include "stlio.h"
// Courtesy of http://www.osdever.net/bkerndev/Docs/keyboard.htm
unsigned char keymap[128] = {
0, 27, '1', '2', '3', '4', '5', '6', '7', '8', /* 9 */
'9', '0', '-', '=', '\b', /* Backspace */
'\t', /* Tab */
'q', 'w', 'e', 'r', /* 19 */
't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', /* Enter key */
0, /* 29 - Control */
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 39 */
'\'', '`', 0, /* Left shift */
'\\', 'z', 'x', 'c', 'v', 'b', 'n', /* 49 */
'm', ',', '.', '/', 0, /* Right shift */
'*',
0, /* Alt */
' ', /* Space bar */
0, /* Caps lock */
0, /* 59 - F1 key ... > */
0, 0, 0, 0, 0, 0, 0, 0,
0, /* < ... F10 */
0, /* 69 - Num lock*/
0, /* Scroll Lock */
0, /* Home key */
0, /* Up Arrow */
0, /* Page Up */
'-',
0, /* Left Arrow */
0,
0, /* Right Arrow */
'+',
0, /* 79 - End key*/
0, /* Down Arrow */
0, /* Page Down */
0, /* Insert Key */
0, /* Delete Key */
0, 0, 0,
0, /* F11 Key */
0, /* F12 Key */
0, /* All other keys are undefined */
};
// Reads one key from the keyboard
void kbd_read_key(struct cpu_reg_state* cpu) {
u32 scancode = serial_read_byte(KBD_PORT);
putch(keymap[scancode]);
}
void kbd_install_keyboard(void) {
init_irq_handler(1, kbd_read_key);
}

2
kernel.c
View File

@ -11,7 +11,7 @@ void kinit() {
//gdt_configure();
init_idt();
pit_install_timer();
//kbd_install_keyboard();
kbd_install_keyboard();
test_dispatcher();
}