2021-05-16 14:53:14 +00:00
|
|
|
#pragma once
|
2022-08-17 12:57:50 +00:00
|
|
|
#include "../../io.h"
|
2021-05-16 14:53:14 +00:00
|
|
|
|
|
|
|
|
#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);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2021-11-02 20:03:11 +00:00
|
|
|
//static uint16_t __pic_get_irq_reg(int ocw3);
|
2021-05-16 14:53:14 +00:00
|
|
|
uint16_t pic_get_irr(void);
|
|
|
|
|
uint16_t pic_get_isr(void);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void PIC_remap (int offset1, int offset2 );
|
