#pragma once 
#include "../../../io.h"

#define PIC1		0x20		/* IO base address for master PIC */
#define PIC2		0xA0		/* IO base address for slave PIC */
#define PIC1_COMMAND	PIC1
#define PIC1_DATA	(PIC1+1)
#define PIC2_COMMAND	PIC2
#define PIC2_DATA	(PIC2+1)


#define ICW1_ICW4	0x01		/* ICW4 (not) needed */
#define ICW1_SINGLE	0x02		/* Single (cascade) mode */
#define ICW1_INTERVAL4	0x04		/* Call address interval 4 (8) */
#define ICW1_LEVEL	0x08		/* Level triggered (edge) mode */
#define ICW1_INIT	0x10		/* Initialization - required! */
 
#define ICW4_8086	0x01		/* 8086/88 (MCS-80/85) mode */
#define ICW4_AUTO	0x02		/* Auto (normal) EOI */
#define ICW4_BUF_SLAVE	0x08		/* Buffered mode/slave */
#define ICW4_BUF_MASTER	0x0C		/* Buffered mode/master */
#define ICW4_SFNM	0x10		/* Special fully nested (not) */

#define PIC_EOI 0x20
#define PIC_READ_IRR 0x0a    /* OCW3 irq ready next CMD read */
#define PIC_READ_ISR 0x0b    /* OCW3 irq service next CMD read */

extern "C"{

extern void irq0 ();
extern void irq1 ();
extern void irq2 ();
extern void irq3 ();
extern void irq4 ();
extern void irq5 ();
extern void irq6 ();
extern void irq7 ();
extern void irq8 ();
extern void irq9 ();
extern void irq10 ();
extern void irq11 ();
extern void irq12 ();
extern void irq13 ();
extern void irq14 ();
extern void irq15 ();

void PIC_sendEOI (unsigned char irq);

}


static uint16_t __pic_get_irq_reg(int ocw3);
uint16_t pic_get_irr(void);
uint16_t pic_get_isr(void);


void PIC_remap (int offset1, int offset2 );