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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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58b519f3e5
Some watchdog drivers have the ability to report the remaining time before the system will reboot. With the WDIOC_GETTIMELEFT ioctl you can now read the time left before the watchdog would reboot your system. The following drivers support this new IOCTL: i8xx_tco.c, pcwd_pci.c and pcwd_usb.c . Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@osdl.org>
65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
/*
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* Generic watchdog defines. Derived from..
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*
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* Berkshire PC Watchdog Defines
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* by Ken Hollis <khollis@bitgate.com>
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*
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*/
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#ifndef _LINUX_WATCHDOG_H
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#define _LINUX_WATCHDOG_H
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#define WATCHDOG_IOCTL_BASE 'W'
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struct watchdog_info {
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__u32 options; /* Options the card/driver supports */
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__u32 firmware_version; /* Firmware version of the card */
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__u8 identity[32]; /* Identity of the board */
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};
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#define WDIOC_GETSUPPORT _IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info)
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#define WDIOC_GETSTATUS _IOR(WATCHDOG_IOCTL_BASE, 1, int)
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#define WDIOC_GETBOOTSTATUS _IOR(WATCHDOG_IOCTL_BASE, 2, int)
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#define WDIOC_GETTEMP _IOR(WATCHDOG_IOCTL_BASE, 3, int)
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#define WDIOC_SETOPTIONS _IOR(WATCHDOG_IOCTL_BASE, 4, int)
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#define WDIOC_KEEPALIVE _IOR(WATCHDOG_IOCTL_BASE, 5, int)
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#define WDIOC_SETTIMEOUT _IOWR(WATCHDOG_IOCTL_BASE, 6, int)
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#define WDIOC_GETTIMEOUT _IOR(WATCHDOG_IOCTL_BASE, 7, int)
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#define WDIOC_SETPRETIMEOUT _IOWR(WATCHDOG_IOCTL_BASE, 8, int)
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#define WDIOC_GETPRETIMEOUT _IOR(WATCHDOG_IOCTL_BASE, 9, int)
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#define WDIOC_GETTIMELEFT _IOR(WATCHDOG_IOCTL_BASE, 10, int)
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#define WDIOF_UNKNOWN -1 /* Unknown flag error */
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#define WDIOS_UNKNOWN -1 /* Unknown status error */
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#define WDIOF_OVERHEAT 0x0001 /* Reset due to CPU overheat */
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#define WDIOF_FANFAULT 0x0002 /* Fan failed */
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#define WDIOF_EXTERN1 0x0004 /* External relay 1 */
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#define WDIOF_EXTERN2 0x0008 /* External relay 2 */
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#define WDIOF_POWERUNDER 0x0010 /* Power bad/power fault */
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#define WDIOF_CARDRESET 0x0020 /* Card previously reset the CPU */
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#define WDIOF_POWEROVER 0x0040 /* Power over voltage */
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#define WDIOF_SETTIMEOUT 0x0080 /* Set timeout (in seconds) */
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#define WDIOF_MAGICCLOSE 0x0100 /* Supports magic close char */
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#define WDIOF_PRETIMEOUT 0x0200 /* Pretimeout (in seconds), get/set */
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#define WDIOF_KEEPALIVEPING 0x8000 /* Keep alive ping reply */
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#define WDIOS_DISABLECARD 0x0001 /* Turn off the watchdog timer */
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#define WDIOS_ENABLECARD 0x0002 /* Turn on the watchdog timer */
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#define WDIOS_TEMPPANIC 0x0004 /* Kernel panic on temperature trip */
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#ifdef __KERNEL__
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#ifdef CONFIG_WATCHDOG_NOWAYOUT
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#define WATCHDOG_NOWAYOUT 1
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#else
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#define WATCHDOG_NOWAYOUT 0
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#endif
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#endif /* __KERNEL__ */
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#endif /* ifndef _LINUX_WATCHDOG_H */
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