#ifndef IRQ_H
#define IRQ_H

#define PIC1 0x20
#define PIC2 0xA0

#define PIC1_COMMAND (PIC1)
#define PIC2_COMMAND (PIC2)

#define PIC1_DATA (PIC1 + 1)
#define PIC2_DATA (PIC2 + 1)

#define PIC_EOI 0x20

#define ACK_MASTER_IRQ outportb(PIC1, PIC_EOI);
#define ACK_SLAVE_IRQ outportb(PIC1, PIC_EOI); outportb(PIC2, PIC_EOI);

typedef void (*isr_t);

struct idt_entry {
	unsigned short base_low;
	unsigned short selector;
	unsigned char zero;
	unsigned char flags;
	unsigned short base_high;
} __attribute((__packed__));

struct idt_descriptor {
	unsigned short limit;
	unsigned int base;
} __attribute((__packed__));

void init_irq();

void sti();
void cli();

#endif /* IRQ_H */