8259.c File Reference

#include <isa/8259.h>
#include <sys/io.h>
#include <lib/kprintf.h>

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Functions
int	i8259_init ()
	initialize the 8259 PIC More...
void	irqDisable (uint16_t irqNo)
void	irqDisable_old (u_int16_t irqNo)
	disable specified IRQ More...
void	irqEnable (uint16_t irqNo)
void	irqEnable_old (u_int16_t irqNo)
	enable specified IRQ More...

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_t

irqNo

)

Definition at line 104 of file 8259.c.

References inportByte(), mImr, outportByte(), and sImr.

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irqDisable_old()

void irqDisable_old

(

u_int16_t

irqNo

)

disable specified IRQ

Parameters

irqNo

IRQ to disable

Definition at line 95 of file 8259.c.

irqEnable()

void irqEnable

(

uint16_t

irqNo

)

Definition at line 75 of file 8259.c.

References inportByte(), mImr, outportByte(), and sImr.

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irqEnable_old()

void irqEnable_old

(

u_int16_t

irqNo

)

enable specified IRQ

Parameters

irqNo

IRQ to enable

Definition at line 66 of file 8259.c.