LXR linux/include/linux/watchdog.h

   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#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#ifdef __KERNEL__
  55
  56#ifdef CONFIG_WATCHDOG_NOWAYOUT
  57#define WATCHDOG_NOWAYOUT       1
  58#else
  59#define WATCHDOG_NOWAYOUT       0
  60#endif
  61
  62#endif  /* __KERNEL__ */
  63
  64#endif  /* ifndef _LINUX_WATCHDOG_H */
  65