mc146818rtc.c File Reference

#include <acpi/acpi.h>
#include <arch/io.h>
#include <commonlib/bsd/bcd.h>
#include <console/console.h>
#include <fallback.h>
#include <pc80/mc146818rtc.h>
#include <rtc.h>
#include <security/vboot/vbnv.h>
#include <security/vboot/vbnv_layout.h>
#include <types.h>
#include <version.h>

Include dependency graph for mc146818rtc.c:

Go to the source code of this file.

Macros
#define	RTC_CONTROL_DEFAULT   (RTC_24H)
#define	RTC_FREQ_SELECT_DEFAULT   (RTC_REF_CLCK_32KHZ | RTC_RATE_1024HZ)

Functions
static void	cmos_reset_date (void)
int	cmos_checksum_valid (int range_start, int range_end, int cks_loc)
void	cmos_set_checksum (int range_start, int range_end, int cks_loc)
int	cmos_error (void)
static bool	__cmos_init (bool invalid)
static void	cmos_init_vbnv (bool invalid)
void	cmos_init (bool invalid)
static void	wait_uip (void)
static int	cmos_date_invalid (void)
void	cmos_check_update_date (void)
int	rtc_set (const struct rtc_time *time)
int	rtc_get (struct rtc_time *time)
void	set_boot_successful (void)

Macro Definition Documentation

RTC_CONTROL_DEFAULT

#define RTC_CONTROL_DEFAULT   (RTC_24H)

Definition at line 65 of file mc146818rtc.c.

RTC_FREQ_SELECT_DEFAULT

#define RTC_FREQ_SELECT_DEFAULT   (RTC_REF_CLCK_32KHZ | RTC_RATE_1024HZ)

Definition at line 66 of file mc146818rtc.c.

Function Documentation

__cmos_init()

static bool __cmos_init ( bool  invalid )

static

Definition at line 68 of file mc146818rtc.c.

References acpi_is_wakeup_s3(), BIOS_DEBUG, BIOS_WARNING, cmos_checksum_valid(), cmos_disable_rtc(), cmos_error(), cmos_lb_cks_valid(), cmos_read(), cmos_reset_date(), cmos_set_checksum(), cmos_write(), CONFIG, ENV_RAMSTAGE, PC_CKS_LOC, PC_CKS_RANGE_END, PC_CKS_RANGE_START, printk, RTC_CONTROL, RTC_CONTROL_DEFAULT, RTC_FREQ_SELECT, RTC_FREQ_SELECT_DEFAULT, RTC_INTR_FLAGS, RTC_VALID, and RTC_VRT.

Referenced by cmos_init(), and cmos_init_vbnv().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_check_update_date()

void cmos_check_update_date

(

void

)

Definition at line 192 of file mc146818rtc.c.

References cmos_date_invalid(), cmos_read(), cmos_reset_date(), CONFIG, RTC_CLK_ALTCENTURY, RTC_CLK_YEAR, wait_uip(), and year.

Referenced by lpc_init(), and rtc_init().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_checksum_valid()

int cmos_checksum_valid	(	int	range_start,
		int	range_end,
		int	cks_loc
	)

Definition at line 31 of file mc146818rtc.c.

References cmos_read(), and CONFIG.

Referenced by __cmos_init(), and cmos_lb_cks_valid().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_date_invalid()

static int cmos_date_invalid ( void  )

static

Definition at line 179 of file mc146818rtc.c.

References rtc_get(), and rtc_invalid().

Referenced by cmos_check_update_date().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_error()

int cmos_error

(

void

)

Definition at line 60 of file mc146818rtc.c.

References cmos_read(), RTC_VALID, and RTC_VRT.

Referenced by __cmos_init(), do_normal_boot(), and sanitize_cmos().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_init()

void cmos_init

(

bool

invalid

)

Definition at line 156 of file mc146818rtc.c.

References __cmos_init(), cmos_init_vbnv(), CONFIG, and ENV_SMM.

Referenced by i82801dx_rtc_init(), i82801gx_rtc_init(), i82801ix_rtc_init(), i82801jx_rtc_init(), isa_init(), lpc_init(), pch_rtc_init(), rtc_init(), sb_rtc_init(), sc_init(), soc_rtc_init(), and verify_psp_transfer_buf().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_init_vbnv()

static void cmos_init_vbnv ( bool  invalid )

static

Definition at line 141 of file mc146818rtc.c.

References __cmos_init(), read_vbnv_cmos(), save_vbnv_cmos(), vbnv, and VBOOT_VBNV_BLOCK_SIZE.

Referenced by cmos_init().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_reset_date()

static void cmos_reset_date ( void  )

static

Definition at line 15 of file mc146818rtc.c.

References bcd2bin(), bcd_date::century, coreboot_build_date, bcd_date::day, bcd_date::month, rtc_set(), rtc_time::sec, bcd_date::weekday, and bcd_date::year.

Referenced by __cmos_init(), and cmos_check_update_date().

Here is the call graph for this function:

Here is the caller graph for this function:

cmos_set_checksum()

void cmos_set_checksum	(	int	range_start,
		int	range_end,
		int	cks_loc
	)

Definition at line 47 of file mc146818rtc.c.

References cmos_read(), and cmos_write().

Referenced by __cmos_init().

Here is the call graph for this function:

Here is the caller graph for this function:

rtc_get()

int rtc_get

(

struct rtc_time *

time

)

Definition at line 224 of file mc146818rtc.c.

References bcd2bin(), cmos_read(), CONFIG, rtc_time::hour, rtc_time::mday, rtc_time::min, rtc_time::mon, RTC_CLK_ALTCENTURY, RTC_CLK_DAYOFMONTH, RTC_CLK_DAYOFWEEK, RTC_CLK_HOUR, RTC_CLK_MINUTE, RTC_CLK_MONTH, RTC_CLK_SECOND, RTC_CLK_YEAR, rtc_time::sec, wait_uip(), rtc_time::wday, and rtc_time::year.

Referenced by cmos_date_invalid().

Here is the call graph for this function:

Here is the caller graph for this function:

rtc_set()

int rtc_set

(

const struct rtc_time *

time

)

Definition at line 210 of file mc146818rtc.c.

References bin2bcd(), cmos_write(), CONFIG, rtc_time::hour, rtc_time::mday, rtc_time::min, rtc_time::mon, RTC_CLK_ALTCENTURY, RTC_CLK_DAYOFMONTH, RTC_CLK_DAYOFWEEK, RTC_CLK_HOUR, RTC_CLK_MINUTE, RTC_CLK_MONTH, RTC_CLK_SECOND, RTC_CLK_YEAR, rtc_time::sec, rtc_time::wday, and rtc_time::year.

Referenced by cmos_reset_date().

Here is the call graph for this function:

Here is the caller graph for this function:

set_boot_successful()

void set_boot_successful

(

void

)

Definition at line 248 of file mc146818rtc.c.

References CONFIG, inb(), outb(), RTC_BOOT_BYTE, RTC_BOOT_NORMAL, and RTC_PORT.

Referenced by acpi_resume().

Here is the call graph for this function:

Here is the caller graph for this function:

wait_uip()

static void wait_uip ( void  )

static

Definition at line 172 of file mc146818rtc.c.

References cmos_read(), RTC_REG_A, and RTC_UIP.

Referenced by cmos_check_update_date(), and rtc_get().

Here is the call graph for this function:

Here is the caller graph for this function: