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 #include <linux/ioctl.h>
  10
  11 #define WATCHDOG_IOCTL_BASE     'W'
  12
  13 struct watchdog_info {
  14         u32 options;            /* Options the card/driver supports */
  15         u32 firmware_version;   /* Firmware version of the card */
  16         u8  identity[32];       /* Identity of the board */
  17 };
  18
  19 #define WDIOC_GETSUPPORT        _IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info)
  20 #define WDIOC_GETSTATUS         _IOR(WATCHDOG_IOCTL_BASE, 1, int)
  21 #define WDIOC_GETBOOTSTATUS     _IOR(WATCHDOG_IOCTL_BASE, 2, int)
  22 #define WDIOC_GETTEMP           _IOR(WATCHDOG_IOCTL_BASE, 3, int)
  23 #define WDIOC_SETOPTIONS        _IOR(WATCHDOG_IOCTL_BASE, 4, int)
  24 #define WDIOC_KEEPALIVE         _IOR(WATCHDOG_IOCTL_BASE, 5, int)
  25
  26 #define WDIOF_UNKNOWN           -1      /* Unknown flag error */
  27 #define WDIOS_UNKNOWN           -1      /* Unknown status error */
  28
  29 #define WDIOF_OVERHEAT          0x0001  /* Reset due to CPU overheat */
  30 #define WDIOF_FANFAULT          0x0002  /* Fan failed */
  31 #define WDIOF_EXTERN1           0x0004  /* External relay 1 */
  32 #define WDIOF_EXTERN2           0x0008  /* External relay 2 */
  33 #define WDIOF_POWERUNDER        0x0010  /* Power bad/power fault */
  34 #define WDIOF_CARDRESET         0x0020  /* Card previously reset the CPU */
  35 #define WDIOF_POWEROVER         0x0040  /* Power over voltage */
  36 #define WDIOF_KEEPALIVEPING     0x8000  /* Keep alive ping reply */
  37
  38 #define WDIOS_DISABLECARD       0x0001  /* Turn off the watchdog timer */
  39 #define WDIOS_ENABLECARD        0x0002  /* Turn on the watchdog timer */
  40 #define WDIOS_TEMPPANIC         0x0004  /* Kernel panic on temperature trip */