[WATCHDOG] Pre-Timeout flags

Some watchdog timers support the concept of a "pretimeout" which
occurs some time before the real timeout.  The pretimeout can
be delivered via an interrupt or NMI and can be used to panic
the system when it occurs (so you get useful information instead
of a blind reboot).

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index 1192ed8f4fe8..a99c937f665e 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -28,6 +28,8 @@ struct watchdog_info {
 #define WDIOC_KEEPALIVE         _IOR(WATCHDOG_IOCTL_BASE, 5, int)
 #define WDIOC_SETTIMEOUT        _IOWR(WATCHDOG_IOCTL_BASE, 6, int)
 #define WDIOC_GETTIMEOUT        _IOR(WATCHDOG_IOCTL_BASE, 7, int)
+#define WDIOC_SETPRETIMEOUT     _IOWR(WATCHDOG_IOCTL_BASE, 8, int)
+#define WDIOC_GETPRETIMEOUT     _IOR(WATCHDOG_IOCTL_BASE, 9, int)
 
 #define WDIOF_UNKNOWN           -1      /* Unknown flag error */
 #define WDIOS_UNKNOWN           -1      /* Unknown status error */
@@ -41,6 +43,7 @@ struct watchdog_info {
 #define WDIOF_POWEROVER         0x0040  /* Power over voltage */
 #define WDIOF_SETTIMEOUT        0x0080  /* Set timeout (in seconds) */
 #define WDIOF_MAGICCLOSE        0x0100  /* Supports magic close char */
+#define WDIOF_PRETIMEOUT        0x0200  /* Pretimeout (in seconds), get/set */
 #define WDIOF_KEEPALIVEPING     0x8000  /* Keep alive ping reply */
 
 #define WDIOS_DISABLECARD       0x0001  /* Turn off the watchdog timer */