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kernel/linux-imx6_3.14.28/include/uapi/linux/watchdog.h 2.23 KB
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  /*
   *	Generic watchdog defines. Derived from..
   *
   * Berkshire PC Watchdog Defines
   * by Ken Hollis <khollis@bitgate.com>
   *
   */
  
  #ifndef _UAPI_LINUX_WATCHDOG_H
  #define _UAPI_LINUX_WATCHDOG_H
  
  #include <linux/ioctl.h>
  #include <linux/types.h>
  
  #define	WATCHDOG_IOCTL_BASE	'W'
  
  struct watchdog_info {
  	__u32 options;		/* Options the card/driver supports */
  	__u32 firmware_version;	/* Firmware version of the card */
  	__u8  identity[32];	/* Identity of the board */
  };
  
  #define	WDIOC_GETSUPPORT	_IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info)
  #define	WDIOC_GETSTATUS		_IOR(WATCHDOG_IOCTL_BASE, 1, int)
  #define	WDIOC_GETBOOTSTATUS	_IOR(WATCHDOG_IOCTL_BASE, 2, int)
  #define	WDIOC_GETTEMP		_IOR(WATCHDOG_IOCTL_BASE, 3, int)
  #define	WDIOC_SETOPTIONS	_IOR(WATCHDOG_IOCTL_BASE, 4, int)
  #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	WDIOC_GETTIMELEFT	_IOR(WATCHDOG_IOCTL_BASE, 10, int)
  
  #define	WDIOF_UNKNOWN		-1	/* Unknown flag error */
  #define	WDIOS_UNKNOWN		-1	/* Unknown status error */
  
  #define	WDIOF_OVERHEAT		0x0001	/* Reset due to CPU overheat */
  #define	WDIOF_FANFAULT		0x0002	/* Fan failed */
  #define	WDIOF_EXTERN1		0x0004	/* External relay 1 */
  #define	WDIOF_EXTERN2		0x0008	/* External relay 2 */
  #define	WDIOF_POWERUNDER	0x0010	/* Power bad/power fault */
  #define	WDIOF_CARDRESET		0x0020	/* Card previously reset the CPU */
  #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_ALARMONLY		0x0400	/* Watchdog triggers a management or
  					   other external alarm not a reboot */
  #define	WDIOF_KEEPALIVEPING	0x8000	/* Keep alive ping reply */
  
  #define	WDIOS_DISABLECARD	0x0001	/* Turn off the watchdog timer */
  #define	WDIOS_ENABLECARD	0x0002	/* Turn on the watchdog timer */
  #define	WDIOS_TEMPPANIC		0x0004	/* Kernel panic on temperature trip */
  
  
  #endif /* _UAPI_LINUX_WATCHDOG_H */