hpet.c File Reference

#include "hal/acpi/acpi.h"
#include "hal/cpu/cpuid.h"
#include "libk/io.h"
#include "libk/serial.h"
#include <type.h>
#include <hal/acpi/hpet.h>
#include <str.h>

Go to the source code of this file.

Functions
boolean_t	vxHPETIsAvailable ()
static void	hpet_write (uint32_t reg, uint64_t value)
static uint64_t	hpet_read (uint32_t reg)
void	hpet_enable ()
void	hpet_disable ()
uint64_t	vxHPETMinTickNs (void)
void	hpet_level_timer_setup (uint32_t n, uint64_t tick_count, int irq)
void	vxHPETInitialize (uintptr_t addr)
uint64_t	vxHPETGetMainCount ()
void	vxHPETSleep (uint64_t ns)

Variables
static volatile uintptr_t	hpet_address = 0
static uint64_t	min_tick_ns = 0
boolean_t	hpet_available = 0

Function Documentation

hpet_disable()

void hpet_disable

(

)

Definition at line 32 of file hpet.c.

References HPET_GENERAL_CONFIG, and hpet_write().

Referenced by vxAPICTimerCalibrationUsingHPET(), and vxHPETInitialize().

hpet_enable()

void hpet_enable

(

)

Definition at line 26 of file hpet.c.

References HPET_GENERAL_CONFIG, hpet_read(), and hpet_write().

Referenced by vxAPICTimerCalibrationUsingHPET(), and vxHPETInitialize().

hpet_level_timer_setup()

void hpet_level_timer_setup	(	uint32_t	n,
		uint64_t	tick_count,
		int	irq )

Definition at line 42 of file hpet.c.

References cap, hpet_read(), HPET_TIMER_COMPARATOR, HPET_TIMER_CONFIG, hpet_write(), and LOG2_ERROR.

hpet_read()

static uint64_t hpet_read ( uint32_t reg )

static

Definition at line 22 of file hpet.c.

References hpet_address, mmio_inll(), and reg.

Referenced by hpet_enable(), hpet_level_timer_setup(), vxHPETGetMainCount(), vxHPETInitialize(), and vxHPETMinTickNs().

hpet_write()

static void hpet_write ( uint32_t reg, uint64_t value )

static

Definition at line 18 of file hpet.c.

References hpet_address, mmio_outll(), reg, and value.

Referenced by hpet_disable(), hpet_enable(), hpet_level_timer_setup(), and vxHPETInitialize().

vxHPETGetMainCount()

uint64_t vxHPETGetMainCount

(

)

Definition at line 82 of file hpet.c.

References HPET_MAIN_COUNT, and hpet_read().

Referenced by get_timer_counter_count(), get_timer_counter_count_ms(), init_timer_counter(), vxHPETSleep(), vxRand(), and vxSchedulerTick().

vxHPETInitialize()

void vxHPETInitialize

(

uintptr_t

addr

)

Definition at line 54 of file hpet.c.

References acpi_map_phys_page(), addr, cap, hpet_address, hpet_available, hpet_disable(), hpet_enable(), HPET_GENERAL_CAP_ID, HPET_MAIN_COUNT, hpet_read(), hpet_write(), LOG2_INFO, memcopy(), min_tick_ns, strncmp(), and table.

Referenced by __attribute__().

vxHPETIsAvailable()

boolean_t vxHPETIsAvailable

(

)

Definition at line 14 of file hpet.c.

References hpet_available.

Referenced by usleep(), and vxRand().

vxHPETMinTickNs()

uint64_t vxHPETMinTickNs

(

void

)

Definition at line 36 of file hpet.c.

References HPET_GENERAL_CAP_ID, and hpet_read().

Referenced by get_timer_counter_count_ms(), and get_timer_counter_count_ns().

vxHPETSleep()

void vxHPETSleep

(

uint64_t

ns

)

Definition at line 86 of file hpet.c.

References hpet_available, min_tick_ns, and vxHPETGetMainCount().

Referenced by INIT(), sipi_sequential(), and usleep().

Variable Documentation

hpet_address

volatile uintptr_t hpet_address = 0

static

Definition at line 10 of file hpet.c.

Referenced by hpet_read(), hpet_write(), and vxHPETInitialize().

hpet_available

boolean_t hpet_available = 0

Definition at line 12 of file hpet.c.

Referenced by vxHPETInitialize(), vxHPETIsAvailable(), and vxHPETSleep().

min_tick_ns

uint64_t min_tick_ns = 0

static

Definition at line 11 of file hpet.c.

Referenced by vxHPETInitialize(), and vxHPETSleep().