iTCO_wdt.c File Reference

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/mfd/core.h>
#include <linux/mfd/lpc_ich.h>
#include "iTCO_vendor.h"

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	DRV_NAME   "iTCO_wdt"
#define	DRV_VERSION   "1.10"
#define	TCOBASE   (iTCO_wdt_private.tco_res->start)
#define	SMI_EN   (iTCO_wdt_private.smi_res->start)
#define	TCO_RLD   (TCOBASE + 0x00) /* TCO Timer Reload and Curr. Value */
#define	TCOv1_TMR   (TCOBASE + 0x01) /* TCOv1 Timer Initial Value */
#define	TCO_DAT_IN   (TCOBASE + 0x02) /* TCO Data In Register */
#define	TCO_DAT_OUT   (TCOBASE + 0x03) /* TCO Data Out Register */
#define	TCO1_STS   (TCOBASE + 0x04) /* TCO1 Status Register */
#define	TCO2_STS   (TCOBASE + 0x06) /* TCO2 Status Register */
#define	TCO1_CNT   (TCOBASE + 0x08) /* TCO1 Control Register */
#define	TCO2_CNT   (TCOBASE + 0x0a) /* TCO2 Control Register */
#define	TCOv2_TMR   (TCOBASE + 0x12) /* TCOv2 Timer Initial Value */
#define	WATCHDOG_TIMEOUT   30 /* 30 sec default heartbeat */

Functions
	module_param (heartbeat, int, 0)
	MODULE_PARM_DESC (heartbeat,"Watchdog timeout in seconds. ""5..76 (TCO v1) or 3..614 (TCO v2), default="__MODULE_STRING(WATCHDOG_TIMEOUT)")")
	module_param (nowayout, bool, 0)
	MODULE_PARM_DESC (nowayout,"Watchdog cannot be stopped once started (default="__MODULE_STRING(WATCHDOG_NOWAYOUT)")")
	module_param (turn_SMI_watchdog_clear_off, int, 0)
	MODULE_PARM_DESC (turn_SMI_watchdog_clear_off,"Turn off SMI clearing watchdog (depends on TCO-version)(default=1)")
	module_init (iTCO_wdt_init_module)
	module_exit (iTCO_wdt_cleanup_module)
	MODULE_AUTHOR ("Wim Van Sebroeck <[email protected]>")
	MODULE_DESCRIPTION ("Intel TCO WatchDog Timer Driver")
	MODULE_VERSION (DRV_VERSION)
	MODULE_LICENSE ("GPL")
	MODULE_ALIAS_MISCDEV (WATCHDOG_MINOR)
	MODULE_ALIAS ("platform:"DRV_NAME)

Macro Definition Documentation

#define DRV_NAME   "iTCO_wdt"

Definition at line 50 of file iTCO_wdt.c.

#define DRV_VERSION   "1.10"

Definition at line 51 of file iTCO_wdt.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 47 of file iTCO_wdt.c.

#define SMI_EN   (iTCO_wdt_private.smi_res->start)

Definition at line 79 of file iTCO_wdt.c.

#define TCO1_CNT   (TCOBASE + 0x08) /* TCO1 Control Register */

Definition at line 87 of file iTCO_wdt.c.

#define TCO1_STS   (TCOBASE + 0x04) /* TCO1 Status Register */

Definition at line 85 of file iTCO_wdt.c.

#define TCO2_CNT   (TCOBASE + 0x0a) /* TCO2 Control Register */

Definition at line 88 of file iTCO_wdt.c.

#define TCO2_STS   (TCOBASE + 0x06) /* TCO2 Status Register */

Definition at line 86 of file iTCO_wdt.c.

#define TCO_DAT_IN   (TCOBASE + 0x02) /* TCO Data In Register */

Definition at line 83 of file iTCO_wdt.c.

#define TCO_DAT_OUT   (TCOBASE + 0x03) /* TCO Data Out Register */

Definition at line 84 of file iTCO_wdt.c.

#define TCO_RLD   (TCOBASE + 0x00) /* TCO Timer Reload and Curr. Value */

Definition at line 81 of file iTCO_wdt.c.

#define TCOBASE   (iTCO_wdt_private.tco_res->start)

Definition at line 77 of file iTCO_wdt.c.

#define TCOv1_TMR   (TCOBASE + 0x01) /* TCOv1 Timer Initial Value */

Definition at line 82 of file iTCO_wdt.c.

#define TCOv2_TMR   (TCOBASE + 0x12) /* TCOv2 Timer Initial Value */

Definition at line 89 of file iTCO_wdt.c.

#define WATCHDOG_TIMEOUT   30 /* 30 sec default heartbeat */

Definition at line 108 of file iTCO_wdt.c.

Function Documentation

MODULE_ALIAS

(

"platform:"

DRV_NAME

)

MODULE_ALIAS_MISCDEV

(

WATCHDOG_MINOR

)

MODULE_AUTHOR

(

"Wim Van Sebroeck <[email protected]>"

)

MODULE_DESCRIPTION

(

"Intel TCO WatchDog Timer Driver"

)

module_exit

(

iTCO_wdt_cleanup_module

)

module_init

(

iTCO_wdt_init_module

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	heartbeat	,
		int	,
		0
	)

module_param	(	nowayout	,
		bool	,
		0
	)

module_param	(	turn_SMI_watchdog_clear_off	,
		int	,
		0
	)

MODULE_PARM_DESC	(	heartbeat	,
		"Watchdog timeout in seconds. ""5..76	TCO v1) or 3..614 (TCO v2,
		default	= "__MODULE_STRING(WATCHDOG_TIMEOUT)"
	)

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

MODULE_PARM_DESC	(	turn_SMI_watchdog_clear_off	,
		"Turn off SMI clearing watchdog (depends on TCO-version)(default=1)"
	)

MODULE_VERSION

(

DRV_VERSION

)

Variable Documentation

struct platform_device* dev

Definition at line 102 of file iTCO_wdt.c.

unsigned long __iomem* gcs

Definition at line 99 of file iTCO_wdt.c.

struct resource* gcs_res

Definition at line 97 of file iTCO_wdt.c.

spinlock_t io_lock

Definition at line 101 of file iTCO_wdt.c.

unsigned int iTCO_version

Definition at line 94 of file iTCO_wdt.c.

struct pci_dev* pdev

Definition at line 104 of file iTCO_wdt.c.

struct resource* smi_res

Definition at line 96 of file iTCO_wdt.c.

struct resource* tco_res

Definition at line 95 of file iTCO_wdt.c.