projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| c5f41752 AW |
42 | #define SYS_DOWN 0x0001 /* Notify of system down */ |
| 43 | #define SYS_RESTART SYS_DOWN | |
| 44 | #define SYS_HALT 0x0002 /* Notify of system halt */ | |
| 45 | #define SYS_POWER_OFF 0x0003 /* Notify of system power off */ | |
| 46 | ||
| 1da177e4 LT |
47 | extern int register_reboot_notifier(struct notifier_block *); |
| 48 | extern int unregister_reboot_notifier(struct notifier_block *); | |
| 49 | ||
| 50 | ||
| 51 | /* | |
| 52 | * Architecture-specific implementations of sys_reboot commands. | |
| 53 | */ | |
| 54 | ||
| 55 | extern void machine_restart(char *cmd); | |
| 56 | extern void machine_halt(void); | |
| 57 | extern void machine_power_off(void); | |
| 58 | ||
| dc009d92 | 59 | extern void machine_shutdown(void); |
| 6e274d14 AN |
60 | struct pt_regs; |
| 61 | extern void machine_crash_shutdown(struct pt_regs *); | |
| dc009d92 | 62 | |
| 4a00ea1e EB |
63 | /* |
| 64 | * Architecture independent implemenations of sys_reboot commands. | |
| 65 | */ | |
| 66 | ||
| ca195b7f | 67 | extern void kernel_restart_prepare(char *cmd); |
| 4a00ea1e EB |
68 | extern void kernel_restart(char *cmd); |
| 69 | extern void kernel_halt(void); | |
| 70 | extern void kernel_power_off(void); | |
| 83cc5ed3 | 71 | |
| eb5572fe | 72 | extern int C_A_D; /* for sysctl */ |
| 83cc5ed3 | 73 | void ctrl_alt_del(void); |
| 4a00ea1e | 74 | |
| 10a0a8d4 JF |
75 | #define POWEROFF_CMD_PATH_LEN 256 |
| 76 | extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN]; | |
| 77 | ||
| 78 | extern int orderly_poweroff(bool force); | |
| 79 | ||
| 7c903473 EB |
80 | /* |
| 81 | * Emergency restart, callable from an interrupt handler. | |
| 82 | */ | |
| 83 | ||
| 84 | extern void emergency_restart(void); | |
| 85 | #include <asm/emergency-restart.h> | |
| 86 | ||
| 1da177e4 LT |
87 | #endif |
| 88 | ||
| 89 | #endif /* _LINUX_REBOOT_H */ |