i6300esb.c File Reference

#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/uaccess.h>
#include <linux/io.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	ESB_VERSION   "0.05"
#define	ESB_MODULE_NAME   "i6300ESB timer"
#define	ESB_DRIVER_NAME   ESB_MODULE_NAME ", v" ESB_VERSION
#define	ESB_CONFIG_REG   0x60 /* Config register */
#define	ESB_LOCK_REG   0x68 /* WDT lock register */
#define	ESB_TIMER1_REG   (BASEADDR + 0x00)/* Timer1 value after each reset */
#define	ESB_TIMER2_REG   (BASEADDR + 0x04)/* Timer2 value after each reset */
#define	ESB_GINTSR_REG   (BASEADDR + 0x08)/* General Interrupt Status Register */
#define	ESB_RELOAD_REG   (BASEADDR + 0x0c)/* Reload register */
#define	ESB_WDT_FUNC   (0x01 << 2) /* Watchdog functionality */
#define	ESB_WDT_ENABLE   (0x01 << 1) /* Enable WDT */
#define	ESB_WDT_LOCK   (0x01 << 0) /* Lock (nowayout) */
#define	ESB_WDT_REBOOT   (0x01 << 5) /* Enable reboot on timeout */
#define	ESB_WDT_FREQ   (0x01 << 2) /* Decrement frequency */
#define	ESB_WDT_INTTYPE   (0x03 << 0) /* Interrupt type on timer1 timeout */
#define	ESB_WDT_TIMEOUT   (0x01 << 9) /* Watchdog timed out */
#define	ESB_WDT_RELOAD   (0x01 << 8) /* prevent timeout */
#define	ESB_UNLOCK1   0x80 /* Step 1 to unlock reset registers */
#define	ESB_UNLOCK2   0x86 /* Step 2 to unlock reset registers */
#define	WATCHDOG_HEARTBEAT   30

Functions
	module_param (heartbeat, int, 0)
	MODULE_PARM_DESC (heartbeat,"Watchdog heartbeat in seconds. (1<heartbeat<2046, default="__MODULE_STRING(WATCHDOG_HEARTBEAT)")")
	module_param (nowayout, bool, 0)
	MODULE_PARM_DESC (nowayout,"Watchdog cannot be stopped once started (default="__MODULE_STRING(WATCHDOG_NOWAYOUT)")")
	MODULE_DEVICE_TABLE (pci, esb_pci_tbl)
	module_pci_driver (esb_driver)
	MODULE_AUTHOR ("Ross Biro and David Härdeman")
	MODULE_DESCRIPTION ("Watchdog driver for Intel 6300ESB chipsets")
	MODULE_LICENSE ("GPL")
	MODULE_ALIAS_MISCDEV (WATCHDOG_MINOR)

Macro Definition Documentation

#define ESB_CONFIG_REG   0x60 /* Config register */

Definition at line 51 of file i6300esb.c.

#define ESB_DRIVER_NAME   ESB_MODULE_NAME ", v" ESB_VERSION

Definition at line 48 of file i6300esb.c.

#define ESB_GINTSR_REG   (BASEADDR + 0x08)/* General Interrupt Status Register */

Definition at line 57 of file i6300esb.c.

#define ESB_LOCK_REG   0x68 /* WDT lock register */

Definition at line 52 of file i6300esb.c.

#define ESB_MODULE_NAME   "i6300ESB timer"

Definition at line 47 of file i6300esb.c.

#define ESB_RELOAD_REG   (BASEADDR + 0x0c)/* Reload register */

Definition at line 58 of file i6300esb.c.

#define ESB_TIMER1_REG   (BASEADDR + 0x00)/* Timer1 value after each reset */

Definition at line 55 of file i6300esb.c.

#define ESB_TIMER2_REG   (BASEADDR + 0x04)/* Timer2 value after each reset */

Definition at line 56 of file i6300esb.c.

#define ESB_UNLOCK1   0x80 /* Step 1 to unlock reset registers */

Definition at line 75 of file i6300esb.c.

#define ESB_UNLOCK2   0x86 /* Step 2 to unlock reset registers */

Definition at line 76 of file i6300esb.c.

#define ESB_VERSION   "0.05"

Definition at line 46 of file i6300esb.c.

#define ESB_WDT_ENABLE   (0x01 << 1) /* Enable WDT */

Definition at line 62 of file i6300esb.c.

#define ESB_WDT_FREQ   (0x01 << 2) /* Decrement frequency */

Definition at line 67 of file i6300esb.c.

#define ESB_WDT_FUNC   (0x01 << 2) /* Watchdog functionality */

Definition at line 61 of file i6300esb.c.

#define ESB_WDT_INTTYPE   (0x03 << 0) /* Interrupt type on timer1 timeout */

Definition at line 68 of file i6300esb.c.

#define ESB_WDT_LOCK   (0x01 << 0) /* Lock (nowayout) */

Definition at line 63 of file i6300esb.c.

#define ESB_WDT_REBOOT   (0x01 << 5) /* Enable reboot on timeout */

Definition at line 66 of file i6300esb.c.

#define ESB_WDT_RELOAD   (0x01 << 8) /* prevent timeout */

Definition at line 72 of file i6300esb.c.

#define ESB_WDT_TIMEOUT   (0x01 << 9) /* Watchdog timed out */

Definition at line 71 of file i6300esb.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 30 of file i6300esb.c.

#define WATCHDOG_HEARTBEAT   30

Definition at line 91 of file i6300esb.c.

Function Documentation

MODULE_ALIAS_MISCDEV

(

WATCHDOG_MINOR

)

MODULE_AUTHOR

(

"Ross Biro and David Härdeman"

)

MODULE_DESCRIPTION

(

"Watchdog driver for Intel 6300ESB chipsets"

)

MODULE_DEVICE_TABLE	(	pci	,
		esb_pci_tbl
	)

MODULE_LICENSE

(

"GPL"

)

module_param	(	heartbeat	,
		int	,
		0
	)

module_param	(	nowayout	,
		bool	,
		0
	)

MODULE_PARM_DESC	(	heartbeat	,
		"Watchdog heartbeat in seconds. (1<heartbeat<2046, default="__MODULE_STRING(WATCHDOG_HEARTBEAT)")"
	)

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

module_pci_driver

(

esb_driver

)