#include <sys/types.h>

Include dependency graph for 8259.h:

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Macros
#define	eoi 0x20

#define	icw1 0x11

#define	icw4 0x01

#define	mImr 0x21

#define	mPic 0x20

#define	mVec 0x68

#define	ocw3Irr 0x0A

#define	ocw3Isr 0x0B

#define	sImr 0xA1

#define	sPic 0xA0

#define	sVec 0x70

Functions
int	i8259_init ()
	initialize the 8259 PIC More...

void	irqDisable (uInt16 irqNo)

void	irqEnable (uInt16 irqNo)

Macro Definition Documentation

◆ eoi

#define eoi 0x20

Definition at line 38 of file 8259.h.

◆ icw1

#define icw1 0x11

Definition at line 39 of file 8259.h.

◆ icw4

#define icw4 0x01

Definition at line 40 of file 8259.h.

◆ mImr

#define mImr 0x21

Definition at line 35 of file 8259.h.

◆ mPic

#define mPic 0x20

Definition at line 34 of file 8259.h.

◆ mVec

#define mVec 0x68

Definition at line 41 of file 8259.h.

◆ ocw3Irr

#define ocw3Irr 0x0A

Definition at line 43 of file 8259.h.

◆ ocw3Isr

#define ocw3Isr 0x0B

Definition at line 44 of file 8259.h.

◆ sImr

#define sImr 0xA1

Definition at line 37 of file 8259.h.

◆ sPic

#define sPic 0xA0

Definition at line 36 of file 8259.h.

◆ sVec

#define sVec 0x70

Definition at line 42 of file 8259.h.

Function Documentation

◆ i8259_init()

int i8259_init ( )

initialize the 8259 PIC

This will initialize both PICs for all of our IRQs

Definition at line 41 of file 8259.c.

References icw1, icw4, kprintf(), mImr, mPic, mVec, outportByte(), sImr, sPic, and sVec.

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◆ irqDisable()

void irqDisable ( uInt16 irqNo )

Referenced by kpanic().

◆ irqEnable()

void irqEnable ( uInt16 irqNo )

Referenced by fdc_init(), and initLNC().

Macros

Functions