rtc.c File Reference

#include "mos/x86/devices/rtc.h"
#include "mos/assert.h"
#include "mos/device/clocksource.h"
#include "mos/x86/devices/port.h"
#include "mos/x86/x86_interrupt.h"
#include <mos/types.h>

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Macros
#define	CURRENT_YEAR   2024
#define	bcd_to_binary(val)

Functions
u8	rtc_read_reg (x86_port_t reg)
u8	rtc_is_update_in_progress ()
void	rtc_read_time (timeval_t *time)
bool	rtc_irq_handler (u32 irq, void *data)
void	rtc_init ()

Variables
static clocksource_t	rtc_clocksource
static const u8	RTC_STATUS_REG_B = 0x0B
static const u8	CMOS_PORT_ADDRESS = 0x70
static const u8	CMOS_PORT_DATA = 0x71

Macro Definition Documentation

CURRENT_YEAR

#define CURRENT_YEAR   2024

Definition at line 3 of file rtc.c.

Referenced by rtc_read_time().

bcd_to_binary

#define bcd_to_binary

(

val

)

Value:

(((val) & 0x0F) + ((val) / 16) * 10)

Referenced by rtc_read_time().

Function Documentation

rtc_read_reg()

u8 rtc_read_reg

(

x86_port_t

reg

)

Definition at line 25 of file rtc.c.

Referenced by rtc_init(), rtc_irq_handler(), rtc_is_update_in_progress(), and rtc_read_time().

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rtc_is_update_in_progress()

u8 rtc_is_update_in_progress

(

)

Definition at line 31 of file rtc.c.

Referenced by rtc_read_time().

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rtc_read_time()

void rtc_read_time

(

timeval_t *

time

)

Definition at line 36 of file rtc.c.

Referenced by platform_get_time().

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rtc_irq_handler()

bool rtc_irq_handler	(	u32	irq,
		void *	data )

Definition at line 99 of file rtc.c.

Referenced by platform_startup_late().

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rtc_init()

void rtc_init

(

)

Definition at line 108 of file rtc.c.

Referenced by platform_startup_late().

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Variable Documentation

rtc_clocksource

clocksource_t rtc_clocksource

static

Initial value:

= {
    .name = "rtc",
    .list_node = LIST_NODE_INIT(rtc_clocksource),
    .frequency = 1000,
    .ticks = 0,
}

Definition at line 14 of file rtc.c.

Referenced by rtc_init(), and rtc_irq_handler().

RTC_STATUS_REG_B

const u8 RTC_STATUS_REG_B = 0x0B

static

Definition at line 21 of file rtc.c.

Referenced by rtc_init().

CMOS_PORT_ADDRESS

const u8 CMOS_PORT_ADDRESS = 0x70

static

Definition at line 22 of file rtc.c.

Referenced by rtc_init(), and rtc_read_reg().

CMOS_PORT_DATA

const u8 CMOS_PORT_DATA = 0x71

static

Definition at line 23 of file rtc.c.

Referenced by rtc_init(), and rtc_read_reg().