#include "gdt.h"
#include "idt.h"
#include "io.h"
#include "irq.h"
#include "types.h"
#include "vga.h"

char getScancode()
{
    char c = 0;
    do {
        if (inb(0x60) != c) {
            c = inb(0x60);
            if (c > 0)
                return c;
        }
    } while (1);
}

void cpuid(int code, uint32_t *a, uint32_t *d)
{
    asm volatile("cpuid" : "=a"(*a), "=d"(*d) : "0"(code) : "ebx", "ecx");
}

void keyboard_handler(int *id)
{
    __asm__("pushal");
    (void)id;
    const char *tictac = "tic tac";
    const short color  = RED;
    printString(tictac, color, BLACK, 0, 3);
    __asm__("popal; leave; iret");
}

void kmain()
{
    const short color = GREEN;
    clearScreen(BLACK);
    printString("Setting up IDT", color, BLACK, 0, 0);
    gdtSetup();
    idtSetup();
    printString("Setting up IRQ", color, BLACK, 0, 1);
    irqSetup();

    irqSetRoutine(IRQ_KEYBOARD, keyboard_handler);
    // Enabling the HW interrupts
    //asm volatile("sti\n");
    while (1) {
        char c = getScancode();
        printChar(c, color, BLACK, 0, 5);
    }
}