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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 *	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_ALARMONLY                                                 \
	0x0400			   /* Watchdog triggers a management or \
				      other external alarm not a reboot */
#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 */

#endif /* _LINUX_WATCHDOG_H */