pika_wdt.c File Reference

#include <linux/init.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/reboot.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/bitops.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/of_platform.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	DRV_NAME   "PIKA-WDT"
#define	WDT_HW_TIMEOUT   2
#define	WDT_TIMEOUT   (HZ/2)
#define	WDT_HEARTBEAT   15

Functions
	module_param (heartbeat, int, 0)
	MODULE_PARM_DESC (heartbeat,"Watchdog heartbeats in seconds. ""(default = "__MODULE_STRING(WDT_HEARTBEAT)")")
	module_param (nowayout, bool, 0)
	MODULE_PARM_DESC (nowayout,"Watchdog cannot be stopped once started ""(default="__MODULE_STRING(WATCHDOG_NOWAYOUT)")")
	module_init (pikawdt_init)
	module_exit (pikawdt_exit)
	MODULE_AUTHOR ("Sean MacLennan <[email protected]>")
	MODULE_DESCRIPTION ("PIKA FPGA based Watchdog Timer")
	MODULE_LICENSE ("GPL")
	MODULE_ALIAS_MISCDEV (WATCHDOG_MINOR)

Macro Definition Documentation

#define DRV_NAME   "PIKA-WDT"

Definition at line 27 of file pika_wdt.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 8 of file pika_wdt.c.

#define WDT_HEARTBEAT   15

Definition at line 36 of file pika_wdt.c.

#define WDT_HW_TIMEOUT   2

Definition at line 30 of file pika_wdt.c.

#define WDT_TIMEOUT   (HZ/2)

Definition at line 33 of file pika_wdt.c.

Function Documentation

MODULE_ALIAS_MISCDEV

(

WATCHDOG_MINOR

)

MODULE_AUTHOR

(

"Sean MacLennan <[email protected]>"

)

MODULE_DESCRIPTION

(

"PIKA FPGA based Watchdog Timer"

)

module_exit

(

pikawdt_exit

)

module_init

(

pikawdt_init

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	heartbeat	,
		int	,
		0
	)

module_param	(	nowayout	,
		bool	,
		0
	)

MODULE_PARM_DESC	(	heartbeat	,
		"Watchdog heartbeats in seconds. ""(default = "__MODULE_STRING(WDT_HEARTBEAT)")"
	)

MODULE_PARM_DESC	(	nowayout	,
		"Watchdog cannot be stopped once started ""(default="__MODULE_STRING(WATCHDOG_NOWAYOUT)")"
	)

Variable Documentation

int bootstatus

Definition at line 52 of file pika_wdt.c.

char expect_close

Definition at line 51 of file pika_wdt.c.

void __iomem* fpga

Definition at line 48 of file pika_wdt.c.

unsigned long next_heartbeat

Definition at line 49 of file pika_wdt.c.

unsigned long open

Definition at line 50 of file pika_wdt.c.

struct timer_list timer

Definition at line 53 of file pika_wdt.c.