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1/*
2 * Generic watchdog defines. Derived from..
3 *
4 * Berkshire PC Watchdog Defines
5 * by Ken Hollis <khollis@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
17struct 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
32#define WDIOF_UNKNOWN -1 /* Unknown flag error */
33#define WDIOS_UNKNOWN -1 /* Unknown status error */
34
35#define WDIOF_OVERHEAT 0x0001 /* Reset due to CPU overheat */
36#define WDIOF_FANFAULT 0x0002 /* Fan failed */
37#define WDIOF_EXTERN1 0x0004 /* External relay 1 */
38#define WDIOF_EXTERN2 0x0008 /* External relay 2 */
39#define WDIOF_POWERUNDER 0x0010 /* Power bad/power fault */
40#define WDIOF_CARDRESET 0x0020 /* Card previously reset the CPU */
41#define WDIOF_POWEROVER 0x0040 /* Power over voltage */
42#define WDIOF_SETTIMEOUT 0x0080 /* Set timeout (in seconds) */
43#define WDIOF_MAGICCLOSE 0x0100 /* Supports magic close char */
44#define WDIOF_KEEPALIVEPING 0x8000 /* Keep alive ping reply */
45
46#define WDIOS_DISABLECARD 0x0001 /* Turn off the watchdog timer */
47#define WDIOS_ENABLECARD 0x0002 /* Turn on the watchdog timer */
48#define WDIOS_TEMPPANIC 0x0004 /* Kernel panic on temperature trip */
49
50#ifdef __KERNEL__
51
52#ifdef CONFIG_WATCHDOG_NOWAYOUT
53#define WATCHDOG_NOWAYOUT 1
54#else
55#define WATCHDOG_NOWAYOUT 0
56#endif
57
58#endif /* __KERNEL__ */
59
60#endif /* ifndef _LINUX_WATCHDOG_H */