1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 *	Generic watchdog defines. Derived from..
4 *
5 * Berkshire PC Watchdog Defines
6 * by Ken Hollis <khollis@bitgate.com>
7 *
8 */
9
10#ifndef _UAPI_LINUX_WATCHDOG_H
11#define _UAPI_LINUX_WATCHDOG_H
12
13#include <linux/ioctl.h>
14#include <linux/types.h>
15
16#define	WATCHDOG_IOCTL_BASE	'W'
17
18struct watchdog_info {
19	__u32 options;		/* Options the card/driver supports */
20	__u32 firmware_version;	/* Firmware version of the card */
21	__u8  identity[32];	/* Identity of the board */
22};
23
24#define	WDIOC_GETSUPPORT	_IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info)
25#define	WDIOC_GETSTATUS		_IOR(WATCHDOG_IOCTL_BASE, 1, int)
26#define	WDIOC_GETBOOTSTATUS	_IOR(WATCHDOG_IOCTL_BASE, 2, int)
27#define	WDIOC_GETTEMP		_IOR(WATCHDOG_IOCTL_BASE, 3, int)
28#define	WDIOC_SETOPTIONS	_IOR(WATCHDOG_IOCTL_BASE, 4, int)
29#define	WDIOC_KEEPALIVE		_IOR(WATCHDOG_IOCTL_BASE, 5, int)
30#define	WDIOC_SETTIMEOUT        _IOWR(WATCHDOG_IOCTL_BASE, 6, int)
31#define	WDIOC_GETTIMEOUT        _IOR(WATCHDOG_IOCTL_BASE, 7, int)
32#define	WDIOC_SETPRETIMEOUT	_IOWR(WATCHDOG_IOCTL_BASE, 8, int)
33#define	WDIOC_GETPRETIMEOUT	_IOR(WATCHDOG_IOCTL_BASE, 9, int)
34#define	WDIOC_GETTIMELEFT	_IOR(WATCHDOG_IOCTL_BASE, 10, int)
35
36#define	WDIOF_UNKNOWN		-1	/* Unknown flag error */
37#define	WDIOS_UNKNOWN		-1	/* Unknown status error */
38
39#define	WDIOF_OVERHEAT		0x0001	/* Reset due to CPU overheat */
40#define	WDIOF_FANFAULT		0x0002	/* Fan failed */
41#define	WDIOF_EXTERN1		0x0004	/* External relay 1 */
42#define	WDIOF_EXTERN2		0x0008	/* External relay 2 */
43#define	WDIOF_POWERUNDER	0x0010	/* Power bad/power fault */
44#define	WDIOF_CARDRESET		0x0020	/* Card previously reset the CPU */
45#define	WDIOF_POWEROVER		0x0040	/* Power over voltage */
46#define	WDIOF_SETTIMEOUT	0x0080  /* Set timeout (in seconds) */
47#define	WDIOF_MAGICCLOSE	0x0100	/* Supports magic close char */
48#define	WDIOF_PRETIMEOUT	0x0200  /* Pretimeout (in seconds), get/set */
49#define	WDIOF_ALARMONLY		0x0400	/* Watchdog triggers a management or
50					   other external alarm not a reboot */
51#define	WDIOF_KEEPALIVEPING	0x8000	/* Keep alive ping reply */
52
53#define	WDIOS_DISABLECARD	0x0001	/* Turn off the watchdog timer */
54#define	WDIOS_ENABLECARD	0x0002	/* Turn on the watchdog timer */
55#define	WDIOS_TEMPPANIC		0x0004	/* Kernel panic on temperature trip */
56
57
58#endif /* _UAPI_LINUX_WATCHDOG_H */
59