timer.h File Reference

#include "cpu/pic/pic.h"
#include "cpu/idt/idt.h"
#include "assembly/io.h"

Go to the source code of this file.

Macros
#define	CHANNEL0_PORT   0x40
#define	MODE_COMMAND_REGISTER   0x43
#define	TIMER_FREQUENCY_HZ   1193182
#define	TARGET_FREQUENCY   1000

Functions
void	timer_init ()
uint16_t	timer_get_reload_value ()
uint32_t	timer_get_expected_clock_fraction ()
uint32_t	timer_get_system_clock ()
bool	timer_interrupt ()
void	timer_sleep (uint32_t time)
	Function makes sleep by checking how much time elapsed. More...
bool	timer_does_elapsed (uint32_t start_time, uint32_t time_to_elapsed)
	Measures if enought time elapsed from start. More...

Macro Definition Documentation

CHANNEL0_PORT

#define CHANNEL0_PORT   0x40

MODE_COMMAND_REGISTER

#define MODE_COMMAND_REGISTER   0x43

TARGET_FREQUENCY

#define TARGET_FREQUENCY   1000

TIMER_FREQUENCY_HZ

#define TIMER_FREQUENCY_HZ   1193182

Function Documentation

timer_does_elapsed()

bool timer_does_elapsed	(	uint32_t	start_time,
		uint32_t	time_to_elapsed
	)

Measures if enought time elapsed from start.

Parameters

start_time	Time from which we start count in miliseconds.
time_to_elapsed	Time in miliseonds that should elapsed since start_time.

Returns

true if time_to_elapsed elapsed since start_time

timer_get_expected_clock_fraction()

uint32_t timer_get_expected_clock_fraction

(

)

timer_get_reload_value()

uint16_t timer_get_reload_value

(

)

timer_get_system_clock()

uint32_t timer_get_system_clock

(

)

timer_init()

void timer_init

(

)

timer_interrupt()

bool timer_interrupt

(

)

timer_sleep()

void timer_sleep

(

uint32_t

time

)

Function makes sleep by checking how much time elapsed.

Parameters

time	Time for sleep in miliseonds.