x86_multiboot/boot/serial.c File Reference

#include "serial.h"
#include "port.h"

Macros
#define	PORT   0x3f8
	Serial port COM1 number. More...

Functions
void	initSerial ()
	Initializes the serial port. More...
int	serialReceived ()
	Checks whether we received some data on the serial port. More...
char	readSerial ()
	Gets a character from the serial port. More...
int	isTransmitEmpty ()
	Checks whether our serial line buffer is empty or not. More...
void	writeSerial (char a)
	Writes a character into the serial port. More...

Macro Definition Documentation

PORT

#define PORT   0x3f8

Serial port COM1 number.

Function Documentation

initSerial()

void initSerial

(

)

Initializes the serial port.

isTransmitEmpty()

int isTransmitEmpty

(

)

Checks whether our serial line buffer is empty or not.

Returns

0 if it's not empty, 1 else

readSerial()

char readSerial

(

)

Gets a character from the serial port.

Returns

The character

serialReceived()

int serialReceived

(

)

Checks whether we received some data on the serial port.

Returns

1 if some data is available, 0 else

writeSerial()

void writeSerial

(

char

a

)

Writes a character into the serial port.

Parameters

a	The character to write