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
  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
  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 */