via_wdt.c File Reference

#include <linux/device.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/timer.h>
#include <linux/watchdog.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	VIA_WDT_MMIO_BASE   0xe8 /* MMIO region base address */
#define	VIA_WDT_CONF   0xec /* watchdog enable state */
#define	VIA_WDT_CONF_ENABLE   0x01 /* 1: enable watchdog */
#define	VIA_WDT_CONF_MMIO   0x02 /* 1: enable watchdog MMIO */
#define	VIA_WDT_MMIO_LEN   8 /* MMIO region length in bytes */
#define	VIA_WDT_CTL   0 /* MMIO addr+0: state/control reg. */
#define	VIA_WDT_COUNT   4 /* MMIO addr+4: timer counter reg. */
#define	VIA_WDT_RUNNING   0x01 /* 0: stop, 1: running */
#define	VIA_WDT_FIRED   0x02 /* 1: restarted by expired watchdog */
#define	VIA_WDT_PWROFF   0x04 /* 0: reset, 1: poweroff */
#define	VIA_WDT_DISABLED   0x08 /* 1: timer is disabled */
#define	VIA_WDT_TRIGGER   0x80 /* 1: start a new countdown */
#define	WDT_HW_HEARTBEAT   1
#define	WDT_HEARTBEAT   (HZ/2) /* should be <= ((WDT_HW_HEARTBEAT*HZ)/2) */
#define	WDT_TIMEOUT_MAX   1023 /* approx. 17 min. */
#define	WDT_TIMEOUT   60

Functions
	module_param (timeout, int, 0)
	MODULE_PARM_DESC (timeout,"Watchdog timeout in seconds, between 1 and 1023 ""(default = "__MODULE_STRING(WDT_TIMEOUT)")")
	module_param (nowayout, bool, 0)
	MODULE_PARM_DESC (nowayout,"Watchdog cannot be stopped once started ""(default = "__MODULE_STRING(WATCHDOG_NOWAYOUT)")")
	module_pci_driver (wdt_driver)
	MODULE_AUTHOR ("Marc Vertes")
	MODULE_DESCRIPTION ("Driver for watchdog timer on VIA chipset")
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 14 of file via_wdt.c.

#define VIA_WDT_CONF   0xec /* watchdog enable state */

Definition at line 26 of file via_wdt.c.

#define VIA_WDT_CONF_ENABLE   0x01 /* 1: enable watchdog */

Definition at line 29 of file via_wdt.c.

#define VIA_WDT_CONF_MMIO   0x02 /* 1: enable watchdog MMIO */

Definition at line 30 of file via_wdt.c.

#define VIA_WDT_COUNT   4 /* MMIO addr+4: timer counter reg. */

Definition at line 38 of file via_wdt.c.

#define VIA_WDT_CTL   0 /* MMIO addr+0: state/control reg. */

Definition at line 37 of file via_wdt.c.

#define VIA_WDT_DISABLED   0x08 /* 1: timer is disabled */

Definition at line 44 of file via_wdt.c.

#define VIA_WDT_FIRED   0x02 /* 1: restarted by expired watchdog */

Definition at line 42 of file via_wdt.c.

#define VIA_WDT_MMIO_BASE   0xe8 /* MMIO region base address */

Definition at line 25 of file via_wdt.c.

#define VIA_WDT_MMIO_LEN   8 /* MMIO region length in bytes */

Definition at line 36 of file via_wdt.c.

#define VIA_WDT_PWROFF   0x04 /* 0: reset, 1: poweroff */

Definition at line 43 of file via_wdt.c.

#define VIA_WDT_RUNNING   0x01 /* 0: stop, 1: running */

Definition at line 41 of file via_wdt.c.

#define VIA_WDT_TRIGGER   0x80 /* 1: start a new countdown */

Definition at line 45 of file via_wdt.c.

#define WDT_HEARTBEAT   (HZ/2) /* should be <= ((WDT_HW_HEARTBEAT*HZ)/2) */

Definition at line 51 of file via_wdt.c.

#define WDT_HW_HEARTBEAT   1

Definition at line 48 of file via_wdt.c.

#define WDT_TIMEOUT   60

Definition at line 55 of file via_wdt.c.

#define WDT_TIMEOUT_MAX   1023 /* approx. 17 min. */

Definition at line 54 of file via_wdt.c.

Function Documentation

MODULE_AUTHOR

(

"Marc Vertes"

)

MODULE_DESCRIPTION

(

"Driver for watchdog timer on VIA chipset"

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	timeout	,
		int	,
		0
	)

module_param	(	nowayout	,
		bool	,
		0
	)

MODULE_PARM_DESC	(	timeout	,
		"Watchdog timeout in	seconds,
		between 1 and 1023""(default="__MODULE_STRING(WDT_TIMEOUT)")"
	)

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

module_pci_driver

(

wdt_driver

)