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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 | extern void machine_shutdown(void); | |
55 | struct pt_regs; | |
56 | extern void machine_crash_shutdown(struct pt_regs *); | |
57 | ||
58 | /* | |
59 | * Architecture independent implemenations of sys_reboot commands. | |
60 | */ | |
61 | ||
62 | extern void kernel_restart_prepare(char *cmd); | |
63 | extern void kernel_restart(char *cmd); | |
64 | extern void kernel_halt(void); | |
65 | extern void kernel_power_off(void); | |
66 | ||
67 | extern int C_A_D; /* for sysctl */ | |
68 | void ctrl_alt_del(void); | |
69 | ||
70 | #define POWEROFF_CMD_PATH_LEN 256 | |
71 | extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN]; | |
72 | ||
73 | extern int orderly_poweroff(bool force); | |
74 | ||
75 | /* | |
76 | * Emergency restart, callable from an interrupt handler. | |
77 | */ | |
78 | ||
79 | extern void emergency_restart(void); | |
80 | #include <asm/emergency-restart.h> | |
81 | ||
82 | #endif | |
83 | ||
84 | #endif /* _LINUX_REBOOT_H */ |