root/include/linux/watchdog.h

INCLUDED FROM

/*
 *      Generic watchdog defines. Derived from..
 *
 * Berkshire PC Watchdog Defines
 * by Ken Hollis <khollis@bitgate.com>
 *
 */

#ifndef _LINUX_WATCHDOG_H
#define _LINUX_WATCHDOG_H

#include <linux/ioctl.h>
#include <linux/types.h>

#define WATCHDOG_IOCTL_BASE     'W'

struct watchdog_info {
        __u32 options;          /* Options the card/driver supports */
        __u32 firmware_version; /* Firmware version of the card */
        __u8  identity[32];     /* Identity of the board */
};

#define WDIOC_GETSUPPORT        _IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info)
#define WDIOC_GETSTATUS         _IOR(WATCHDOG_IOCTL_BASE, 1, int)
#define WDIOC_GETBOOTSTATUS     _IOR(WATCHDOG_IOCTL_BASE, 2, int)
#define WDIOC_GETTEMP           _IOR(WATCHDOG_IOCTL_BASE, 3, int)
#define WDIOC_SETOPTIONS        _IOR(WATCHDOG_IOCTL_BASE, 4, int)
#define WDIOC_KEEPALIVE         _IOR(WATCHDOG_IOCTL_BASE, 5, int)
#define WDIOC_SETTIMEOUT        _IOWR(WATCHDOG_IOCTL_BASE, 6, int)
#define WDIOC_GETTIMEOUT        _IOR(WATCHDOG_IOCTL_BASE, 7, int)
#define WDIOC_SETPRETIMEOUT     _IOWR(WATCHDOG_IOCTL_BASE, 8, int)
#define WDIOC_GETPRETIMEOUT     _IOR(WATCHDOG_IOCTL_BASE, 9, int)
#define WDIOC_GETTIMELEFT       _IOR(WATCHDOG_IOCTL_BASE, 10, int)

#define WDIOF_UNKNOWN           -1      /* Unknown flag error */
#define WDIOS_UNKNOWN           -1      /* Unknown status error */

#define WDIOF_OVERHEAT          0x0001  /* Reset due to CPU overheat */
#define WDIOF_FANFAULT          0x0002  /* Fan failed */
#define WDIOF_EXTERN1           0x0004  /* External relay 1 */
#define WDIOF_EXTERN2           0x0008  /* External relay 2 */
#define WDIOF_POWERUNDER        0x0010  /* Power bad/power fault */
#define WDIOF_CARDRESET         0x0020  /* Card previously reset the CPU */
#define WDIOF_POWEROVER         0x0040  /* Power over voltage */
#define WDIOF_SETTIMEOUT        0x0080  /* Set timeout (in seconds) */
#define WDIOF_MAGICCLOSE        0x0100  /* Supports magic close char */
#define WDIOF_PRETIMEOUT        0x0200  /* Pretimeout (in seconds), get/set */
#define WDIOF_KEEPALIVEPING     0x8000  /* Keep alive ping reply */

#define WDIOS_DISABLECARD       0x0001  /* Turn off the watchdog timer */
#define WDIOS_ENABLECARD        0x0002  /* Turn on the watchdog timer */
#define WDIOS_TEMPPANIC         0x0004  /* Kernel panic on temperature trip */

#ifdef __KERNEL__

#ifdef CONFIG_WATCHDOG_NOWAYOUT
#define WATCHDOG_NOWAYOUT       1
#else
#define WATCHDOG_NOWAYOUT       0
#endif

#endif  /* __KERNEL__ */

#endif  /* ifndef _LINUX_WATCHDOG_H */