wdt.h File Reference

Watchdog Timer API. More...

#include <sys/cdefs.h>
#include <stdint.h>

Go to the source code of this file.

Typedefs
typedef void(*	wdt_callback) (void *user_data)

Enumerations
enum	WDT_CLK_DIV {   WDT_CLK_DIV_32 , WDT_CLK_DIV_64 , WDT_CLK_DIV_128 , WDT_CLK_DIV_256 ,   WDT_CLK_DIV_512 , WDT_CLK_DIV_1024 , WDT_CLK_DIV_2048 , WDT_CLK_DIV_4096 }
	Clock divider settings. More...
enum	WDT_RST { WDT_RST_POWER_ON , WDT_RST_MANUAL }
	Reset signal type. More...

Functions
void	wdt_enable_timer (uint8_t initial_count, uint32_t microsec_period, uint8_t irq_prio, wdt_callback callback, void *user_data)
	Enables the WDT as an interval timer.
void	wdt_enable_watchdog (uint8_t initial_count, WDT_CLK_DIV clk_config, WDT_RST reset_select)
	Enables the WDT in watchdog mode.
uint8_t	wdt_get_counter (void)
	Fetches the counter value.
void	wdt_set_counter (uint8_t value)
	Sets the counter value.
void	wdt_pet (void)
	Resets the counter value.
void	wdt_disable (void)
	Disables the WDT.
int	wdt_is_enabled (void)
	Returns whether the WDT is enabled.

Detailed Description

Watchdog Timer API.

This file provides an API for configuring and utilizing the SH4's watchdog timer as either a reset or an interval timer.

See also

arch/timer.h

arch/rtc.h

Author

Falco Girgis

Typedef Documentation

wdt_callback

typedef void(* wdt_callback) (void *user_data)