| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 2 | /* |
| 3 | * Generic watchdog defines. Derived from.. |
| 4 | * |
| 5 | * Berkshire PC Watchdog Defines |
| 6 | * by Ken Hollis <khollis@bitgate.com> |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | #ifndef _LINUX_WATCHDOG_H |
| 11 | #define _LINUX_WATCHDOG_H |
| 12 | |
| 13 | #include <linux/ioctl.h> |
| 14 | #include <linux/types.h> |
| 15 | |
| 16 | #define WATCHDOG_IOCTL_BASE 'W' |
| 17 | |
| 18 | struct watchdog_info { |
| 19 | __u32 options; /* Options the card/driver supports */ |
| 20 | __u32 firmware_version; /* Firmware version of the card */ |
| 21 | __u8 identity[32]; /* Identity of the board */ |
| 22 | }; |
| 23 | |
| 24 | #define WDIOC_GETSUPPORT _IOR(WATCHDOG_IOCTL_BASE, 0, struct watchdog_info) |
| 25 | #define WDIOC_GETSTATUS _IOR(WATCHDOG_IOCTL_BASE, 1, int) |
| 26 | #define WDIOC_GETBOOTSTATUS _IOR(WATCHDOG_IOCTL_BASE, 2, int) |
| 27 | #define WDIOC_GETTEMP _IOR(WATCHDOG_IOCTL_BASE, 3, int) |
| 28 | #define WDIOC_SETOPTIONS _IOR(WATCHDOG_IOCTL_BASE, 4, int) |
| 29 | #define WDIOC_KEEPALIVE _IOR(WATCHDOG_IOCTL_BASE, 5, int) |
| 30 | #define WDIOC_SETTIMEOUT _IOWR(WATCHDOG_IOCTL_BASE, 6, int) |
| 31 | #define WDIOC_GETTIMEOUT _IOR(WATCHDOG_IOCTL_BASE, 7, int) |
| 32 | #define WDIOC_SETPRETIMEOUT _IOWR(WATCHDOG_IOCTL_BASE, 8, int) |
| 33 | #define WDIOC_GETPRETIMEOUT _IOR(WATCHDOG_IOCTL_BASE, 9, int) |
| 34 | #define WDIOC_GETTIMELEFT _IOR(WATCHDOG_IOCTL_BASE, 10, int) |
| 35 | |
| 36 | #define WDIOF_UNKNOWN -1 /* Unknown flag error */ |
| 37 | #define WDIOS_UNKNOWN -1 /* Unknown status error */ |
| 38 | |
| 39 | /* Bit masks for watchdog_info.options, GETSTATUS and GETBOOTSTATUS ioctls */ |
| 40 | #define WDIOF_OVERHEAT 0x0001 /* Reset due to CPU overheat */ |
| 41 | #define WDIOF_FANFAULT 0x0002 /* Fan failed */ |
| 42 | #define WDIOF_EXTERN1 0x0004 /* External relay 1 */ |
| 43 | #define WDIOF_EXTERN2 0x0008 /* External relay 2 */ |
| 44 | #define WDIOF_POWERUNDER 0x0010 /* Power bad/power fault */ |
| 45 | #define WDIOF_CARDRESET 0x0020 /* Card previously reset the CPU */ |
| 46 | #define WDIOF_POWEROVER 0x0040 /* Power over voltage */ |
| 47 | #define WDIOF_SETTIMEOUT 0x0080 /* Set timeout (in seconds) */ |
| 48 | #define WDIOF_MAGICCLOSE 0x0100 /* Supports magic close char */ |
| 49 | #define WDIOF_PRETIMEOUT 0x0200 /* Pretimeout (in seconds), get/set */ |
| 50 | #define WDIOF_ALARMONLY 0x0400 /* Watchdog triggers a management or |
| 51 | other external alarm not a reboot */ |
| 52 | #define WDIOF_KEEPALIVEPING 0x8000 /* Keep alive ping reply */ |
| 53 | |
| 54 | /* Bit masks for WDIOC_SETOPTIONS ioctl */ |
| 55 | #define WDIOS_DISABLECARD 0x0001 /* Turn off the watchdog timer */ |
| 56 | #define WDIOS_ENABLECARD 0x0002 /* Turn on the watchdog timer */ |
| 57 | #define WDIOS_TEMPPANIC 0x0004 /* Kernel panic on temperature trip */ |
| 58 | |
| 59 | |
| 60 | #endif /* _LINUX_WATCHDOG_H */ |