ie6xx_wdt.c File Reference

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/watchdog.h>
#include <linux/miscdevice.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/spinlock.h>

Go to the source code of this file.

Macros
#define	DRIVER_NAME   "ie6xx_wdt"
#define	PV1   0x00
#define	PV2   0x04
#define	RR0   0x0c
#define	RR1   0x0d
#define	WDT_RELOAD   0x01
#define	WDT_TOUT   0x02
#define	WDTCR   0x10
#define	WDT_PRE_SEL   0x04
#define	WDT_RESET_SEL   0x08
#define	WDT_RESET_EN   0x10
#define	WDT_TOUT_EN   0x20
#define	DCR   0x14
#define	WDTLR   0x18
#define	WDT_LOCK   0x01
#define	WDT_ENABLE   0x02
#define	WDT_TOUT_CNF   0x03
#define	MIN_TIME   1
#define	MAX_TIME   (10 * 60) /* 10 minutes */
#define	DEFAULT_TIME   60

Functions
	module_param (timeout, uint, 0)
	MODULE_PARM_DESC (timeout,"Default Watchdog timer setting ("__MODULE_STRING(DEFAULT_TIME)"s).""The range is from 1 to 600")
	module_param (nowayout, bool, 0)
	MODULE_PARM_DESC (nowayout,"Watchdog cannot be stopped once started (default="__MODULE_STRING(WATCHDOG_NOWAYOUT)")")
	module_param (resetmode, byte, 0)
	MODULE_PARM_DESC (resetmode,"Resetmode bits: 0x08 warm reset (cold reset otherwise), ""0x10 reset enable, 0x20 disable toggle GPIO[4] (default=0x10)")
	late_initcall (ie6xx_wdt_init)
	module_exit (ie6xx_wdt_exit)
	MODULE_AUTHOR ("Alexander Stein <[email protected]>")
	MODULE_DESCRIPTION ("Intel Atom E6xx Watchdog Device Driver")
	MODULE_LICENSE ("GPL")
	MODULE_ALIAS_MISCDEV (WATCHDOG_MINOR)
	MODULE_ALIAS ("platform:"DRIVER_NAME)

Macro Definition Documentation

#define DCR   0x14

Definition at line 53 of file ie6xx_wdt.c.

#define DEFAULT_TIME   60

Definition at line 62 of file ie6xx_wdt.c.

#define DRIVER_NAME   "ie6xx_wdt"

Definition at line 37 of file ie6xx_wdt.c.

#define MAX_TIME   (10 * 60) /* 10 minutes */

Definition at line 61 of file ie6xx_wdt.c.

#define MIN_TIME   1

Definition at line 60 of file ie6xx_wdt.c.

#define PV1   0x00

Definition at line 39 of file ie6xx_wdt.c.

#define PV2   0x04

Definition at line 40 of file ie6xx_wdt.c.

#define RR0   0x0c

Definition at line 42 of file ie6xx_wdt.c.

#define RR1   0x0d

Definition at line 43 of file ie6xx_wdt.c.

#define WDT_ENABLE   0x02

Definition at line 57 of file ie6xx_wdt.c.

#define WDT_LOCK   0x01

Definition at line 56 of file ie6xx_wdt.c.

#define WDT_PRE_SEL   0x04

Definition at line 48 of file ie6xx_wdt.c.

#define WDT_RELOAD   0x01

Definition at line 44 of file ie6xx_wdt.c.

#define WDT_RESET_EN   0x10

Definition at line 50 of file ie6xx_wdt.c.

#define WDT_RESET_SEL   0x08

Definition at line 49 of file ie6xx_wdt.c.

#define WDT_TOUT   0x02

Definition at line 45 of file ie6xx_wdt.c.

#define WDT_TOUT_CNF   0x03

Definition at line 58 of file ie6xx_wdt.c.

#define WDT_TOUT_EN   0x20

Definition at line 51 of file ie6xx_wdt.c.

#define WDTCR   0x10

Definition at line 47 of file ie6xx_wdt.c.

#define WDTLR   0x18

Definition at line 55 of file ie6xx_wdt.c.

Function Documentation

late_initcall

(

ie6xx_wdt_init

)

MODULE_ALIAS

(

"platform:"

DRIVER_NAME

)

MODULE_ALIAS_MISCDEV

(

WATCHDOG_MINOR

)

MODULE_AUTHOR

(

"Alexander Stein <[email protected]>"

)

MODULE_DESCRIPTION

(

"Intel Atom E6xx Watchdog Device Driver"

)

module_exit

(

ie6xx_wdt_exit

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	timeout	,
		uint	,
		0
	)

module_param	(	nowayout	,
		bool	,
		0
	)

module_param	(	resetmode	,
		byte	,
		0
	)

MODULE_PARM_DESC	(	timeout	,
		"Default Watchdog timer setting ("__MODULE_STRING(DEFAULT_TIME)"s).""The range is from 1 to 600"
	)

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

MODULE_PARM_DESC	(	resetmode	,
		"Resetmode bits: 0x08 warm reset	cold reset otherwise,
		""0x10 reset	enable,
		0x20 disable toggle GPIO(default=0x10)"	[4]
	)

Variable Documentation

unsigned short sch_wdtba

Definition at line 84 of file ie6xx_wdt.c.

struct spinlock unlock_sequence

Definition at line 85 of file ie6xx_wdt.c.