pic.h

//
// Created by dylan on 11/07/2026.
//
 
#ifndef BLU_OS_PIC_H
#define BLU_OS_PIC_H
 
#include <stdint.h>
 
#define PIC1 0x20
#define PIC2 0xA0
#define PIC1_COMMAND PIC1
#define PIC1_DATA (PIC1 + 1)
#define PIC2_COMMAND PIC2
#define PIC2_DATA (PIC2 + 1)
#define PIC_EOI 0x20
 
#define ICW1_ICW4 0x01
#define ICW1_SINGLE 0x02
#define ICW1_INTERVAL4 0x04
#define ICW1_LEVEL 0x08
#define ICW1_INIT 0x10
 
#define ICW4_8086 0x01
#define ICW4_AUTO 0x02
#define ICW4_BUF_SLAVE 0x08
#define ICW4_BUF_MASTER 0x0C
#define ICW4_SFNM 0x10
 
#define CASCADE_IRQ 2
 
#define PIC_READ_IRR 0x0a
#define PIC_READ_ISR 0x0b
 
void picSendEoi(uint8_t irq);
 
void remapPic(uint32_t offset1, uint32_t offset2);
 
void disablePic();
 
void irqSetMask(uint8_t irqLine);
 
void irqClearMask(uint8_t irqLine);
 
uint16_t getPicIrr();
 
uint16_t getPicIsr();
 
 
#endif //BLU_OS_PIC_H