| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_REBOOT_H |
| 2 | #define _LINUX_REBOOT_H |
| 3 | |
| 4 | /* |
| 5 | * Magic values required to use _reboot() system call. |
| 6 | */ |
| 7 | |
| 8 | #define LINUX_REBOOT_MAGIC1 0xfee1dead |
| 9 | #define LINUX_REBOOT_MAGIC2 672274793 |
| 10 | #define LINUX_REBOOT_MAGIC2A 85072278 |
| 11 | #define LINUX_REBOOT_MAGIC2B 369367448 |
| 12 | #define LINUX_REBOOT_MAGIC2C 537993216 |
| 13 | |
| 14 | |
| 15 | /* |
| 16 | * Commands accepted by the _reboot() system call. |
| 17 | * |
| 18 | * RESTART Restart system using default command and mode. |
| 19 | * HALT Stop OS and give system control to ROM monitor, if any. |
| 20 | * CAD_ON Ctrl-Alt-Del sequence causes RESTART command. |
| 21 | * CAD_OFF Ctrl-Alt-Del sequence sends SIGINT to init task. |
| 22 | * POWER_OFF Stop OS and remove all power from system, if possible. |
| 23 | * RESTART2 Restart system using given command string. |
| 24 | * SW_SUSPEND Suspend system using software suspend if compiled in. |
| 25 | * KEXEC Restart system using a previously loaded Linux kernel |
| 26 | */ |
| 27 | |
| 28 | #define LINUX_REBOOT_CMD_RESTART 0x01234567 |
| 29 | #define LINUX_REBOOT_CMD_HALT 0xCDEF0123 |
| 30 | #define LINUX_REBOOT_CMD_CAD_ON 0x89ABCDEF |
| 31 | #define LINUX_REBOOT_CMD_CAD_OFF 0x00000000 |
| 32 | #define LINUX_REBOOT_CMD_POWER_OFF 0x4321FEDC |
| 33 | #define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4 |
| 34 | #define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2 |
| 35 | #define LINUX_REBOOT_CMD_KEXEC 0x45584543 |
| 36 | |
| 37 | |
| 38 | #ifdef __KERNEL__ |
| 39 | |
| 40 | #include <linux/notifier.h> |
| 41 | |
| 42 | extern int register_reboot_notifier(struct notifier_block *); |
| 43 | extern int unregister_reboot_notifier(struct notifier_block *); |
| 44 | |
| 45 | |
| 46 | /* |
| 47 | * Architecture-specific implementations of sys_reboot commands. |
| 48 | */ |
| 49 | |
| 50 | extern void machine_restart(char *cmd); |
| 51 | extern void machine_halt(void); |
| 52 | extern void machine_power_off(void); |
| 53 | |
| 54 | #endif |
| 55 | |
| 56 | #endif /* _LINUX_REBOOT_H */ |