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      1 /*
      2  *	Generic watchdog defines. Derived from..
      3  *
      4  * Berkshire PC Watchdog Defines
      5  * by Ken Hollis <khollis (at) bitgate.com>
      6  *
      7  */
      8 
      9 #ifndef _LINUX_WATCHDOG_H
     10 #define _LINUX_WATCHDOG_H
     11 
     12 #include <linux/ioctl.h>
     13 #include <linux/types.h>
     14 
     15 #define	WATCHDOG_IOCTL_BASE	'W'
     16 
     17 struct watchdog_info {
     18 	__u32 options;		/* Options the card/driver supports */
     19 	__u32 firmware_version;	/* Firmware version of the card */
     20 	__u8  identity[32];	/* Identity of the board */
     21 };
     22 
     23 #define	WDIOC_GETSUPPORT	_IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info)
     24 #define	WDIOC_GETSTATUS		_IOR(WATCHDOG_IOCTL_BASE, 1, int)
     25 #define	WDIOC_GETBOOTSTATUS	_IOR(WATCHDOG_IOCTL_BASE, 2, int)
     26 #define	WDIOC_GETTEMP		_IOR(WATCHDOG_IOCTL_BASE, 3, int)
     27 #define	WDIOC_SETOPTIONS	_IOR(WATCHDOG_IOCTL_BASE, 4, int)
     28 #define	WDIOC_KEEPALIVE		_IOR(WATCHDOG_IOCTL_BASE, 5, int)
     29 #define	WDIOC_SETTIMEOUT        _IOWR(WATCHDOG_IOCTL_BASE, 6, int)
     30 #define	WDIOC_GETTIMEOUT        _IOR(WATCHDOG_IOCTL_BASE, 7, int)
     31 #define	WDIOC_SETPRETIMEOUT	_IOWR(WATCHDOG_IOCTL_BASE, 8, int)
     32 #define	WDIOC_GETPRETIMEOUT	_IOR(WATCHDOG_IOCTL_BASE, 9, int)
     33 #define	WDIOC_GETTIMELEFT	_IOR(WATCHDOG_IOCTL_BASE, 10, int)
     34 
     35 #define	WDIOF_UNKNOWN		-1	/* Unknown flag error */
     36 #define	WDIOS_UNKNOWN		-1	/* Unknown status error */
     37 
     38 #define	WDIOF_OVERHEAT		0x0001	/* Reset due to CPU overheat */
     39 #define	WDIOF_FANFAULT		0x0002	/* Fan failed */
     40 #define	WDIOF_EXTERN1		0x0004	/* External relay 1 */
     41 #define	WDIOF_EXTERN2		0x0008	/* External relay 2 */
     42 #define	WDIOF_POWERUNDER	0x0010	/* Power bad/power fault */
     43 #define	WDIOF_CARDRESET		0x0020	/* Card previously reset the CPU */
     44 #define	WDIOF_POWEROVER		0x0040	/* Power over voltage */
     45 #define	WDIOF_SETTIMEOUT	0x0080  /* Set timeout (in seconds) */
     46 #define	WDIOF_MAGICCLOSE	0x0100	/* Supports magic close char */
     47 #define	WDIOF_PRETIMEOUT	0x0200  /* Pretimeout (in seconds), get/set */
     48 #define	WDIOF_KEEPALIVEPING	0x8000	/* Keep alive ping reply */
     49 
     50 #define	WDIOS_DISABLECARD	0x0001	/* Turn off the watchdog timer */
     51 #define	WDIOS_ENABLECARD	0x0002	/* Turn on the watchdog timer */
     52 #define	WDIOS_TEMPPANIC		0x0004	/* Kernel panic on temperature trip */
     53 
     54 
     55 #endif  /* ifndef _LINUX_WATCHDOG_H */
     56