réplica de
https://github.com/Arnau478/quark.git
synced 2024-05-19 20:36:31 +02:00
52 líneas
1,5 KiB
C
52 líneas
1,5 KiB
C
#include "../util/string.h"
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#include "keyboard.h"
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#include "../arch/i686/isr.h"
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#include "../lib/stdio.h"
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#include "../arch/i686/io.h"
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#include "../lib/stdio.h"
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static char g_key_buffer[256];
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static const char g_sc_ascii[128] = {
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'?', '?', '1', '2', '3', '4', '5', '6',
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'7', '8', '9', '0', '-', '=', '?', '?',
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
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'O', 'P', '[', ']', '?', '?', 'A', 'S',
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'D', 'F', 'G', 'H', 'J', 'K', 'L', ';',
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'\'', '`', '?', '\\', 'z', 'x', 'c', 'v',
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'B', 'N', 'M', ',', '.', '/', '?', '?',
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'?', ' '
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};
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static void user_input(char *str){
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printf("In: \"%s\"\n", str);
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}
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static void keyboard_callback(){
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uint8_t scancode = i686_inb(0x60);
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//printf("KEYBOARD (%i)!\n", scancode);
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if(scancode < 128){ // If it's a "pressed" event, not "released"
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if(scancode == 0x0E){ // Backspace
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putc('\b');
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g_key_buffer[strlen(g_key_buffer)-1] = '\0';
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}
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else if(scancode == 0x1C){ // Enter
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putc('\n');
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user_input(g_key_buffer);
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g_key_buffer[0] = '\0';
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}
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else{
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putc(g_sc_ascii[scancode]);
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// strlen() works here because char[] is the same as
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// char*, and both are null-terminated, so they are
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// exactly the same
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g_key_buffer[strlen(g_key_buffer)] = g_sc_ascii[scancode];
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}
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}
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}
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void keyboard_initialize(){
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i686_isr_register_handler(IRQ(1), keyboard_callback);
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}
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