port.h File Reference

Include file for IO-ports operations. More...

#include <stdint.h>

Go to the source code of this file.

Macros
#define	FAULT_FORBIDDEN   64

Functions
void	outb (uint16_t port, uint8_t value)
	IO port write byte. More...
void	outw (uint16_t port, uint16_t value)
	IO port write word. More...
uint8_t	inb (uint16_t port)
	IO port read byte. More...
uint16_t	inw (uint16_t port)
	IO port read word. More...
void	cg_outb (uint32_t port, uint32_t value)
	Outb callgate method. More...
uint32_t	cg_inb (uint32_t port)
	Inb callgate method. More...
void	cg_outw (uint32_t port, uint32_t value)
	Outw callgate method. More...
uint32_t	cg_inw (uint32_t port)
	Inw callgate method. More...
void	cg_outl (uint32_t port, uint32_t value)
	Outl callgate method. More...
void	cg_outaddrl (uint32_t port, uint32_t value)
	Outaddrl callgate method. More...
uint32_t	cg_inl (uint32_t port)
	Inl callgate method. More...

Detailed Description

Include file for IO-ports operations.

Macro Definition Documentation

FAULT_FORBIDDEN

#define FAULT_FORBIDDEN   64

Function Documentation

cg_inb()

uint32_t cg_inb

(

uint32_t

port

)

Inb callgate method.

cg_inl()

uint32_t cg_inl

(

uint32_t

port

)

Inl callgate method.

cg_inw()

uint32_t cg_inw

(

uint32_t

port

)

Inw callgate method.

cg_outaddrl()

void cg_outaddrl	(	uint32_t	port,
		uint32_t	value
	)

Outaddrl callgate method.

cg_outb()

void cg_outb	(	uint32_t	port,
		uint32_t	value
	)

Outb callgate method.

cg_outl()

void cg_outl	(	uint32_t	port,
		uint32_t	value
	)

Outl callgate method.

cg_outw()

void cg_outw	(	uint32_t	port,
		uint32_t	value
	)

Outw callgate method.

inb()

uint8_t inb

(

uint16_t

port

)

IO port read byte.

In operation on 1-byte value.

Parameters

port	The port number

Returns

The value returned by the IO operation

inw()

uint16_t inw

(

uint16_t

port

)

IO port read word.

In operation on a 2-bytes value.

Parameters

port	The port number

Returns

The value returned by the IO operation

outb()

void outb	(	uint16_t	port,
		uint8_t	value
	)

IO port write byte.

Out operation on 1-byte value.

Parameters

port	The port number
value	The value to write

outw()

void outw	(	uint16_t	port,
		uint16_t	value
	)

IO port write word.

Out operation on 2-byte value.

Parameters

port	The port number
value	The value to write