1#ifndef _LINUX_REBOOT_H
2#define _LINUX_REBOOT_H
3
4
5#include <linux/notifier.h>
6#include <uapi/linux/reboot.h>
7
8#define SYS_DOWN	0x0001	/* Notify of system down */
9#define SYS_RESTART	SYS_DOWN
10#define SYS_HALT	0x0002	/* Notify of system halt */
11#define SYS_POWER_OFF	0x0003	/* Notify of system power off */
12
13enum reboot_mode {
14	REBOOT_COLD = 0,
15	REBOOT_WARM,
16	REBOOT_HARD,
17	REBOOT_SOFT,
18	REBOOT_GPIO,
19};
20extern enum reboot_mode reboot_mode;
21
22enum reboot_type {
23	BOOT_TRIPLE	= 't',
24	BOOT_KBD	= 'k',
25	BOOT_BIOS	= 'b',
26	BOOT_ACPI	= 'a',
27	BOOT_EFI	= 'e',
28	BOOT_CF9_FORCE	= 'p',
29	BOOT_CF9_SAFE	= 'q',
30};
31extern enum reboot_type reboot_type;
32
33extern int reboot_default;
34extern int reboot_cpu;
35extern int reboot_force;
36
37
38extern int register_reboot_notifier(struct notifier_block *);
39extern int unregister_reboot_notifier(struct notifier_block *);
40
41extern int register_restart_handler(struct notifier_block *);
42extern int unregister_restart_handler(struct notifier_block *);
43extern void do_kernel_restart(char *cmd);
44
45/*
46 * Architecture-specific implementations of sys_reboot commands.
47 */
48
49extern void migrate_to_reboot_cpu(void);
50extern void machine_restart(char *cmd);
51extern void machine_halt(void);
52extern void machine_power_off(void);
53
54extern void machine_shutdown(void);
55struct pt_regs;
56extern void machine_crash_shutdown(struct pt_regs *);
57
58/*
59 * Architecture independent implemenations of sys_reboot commands.
60 */
61
62extern void kernel_restart_prepare(char *cmd);
63extern void kernel_restart(char *cmd);
64extern void kernel_halt(void);
65extern void kernel_power_off(void);
66
67extern int C_A_D; /* for sysctl */
68void ctrl_alt_del(void);
69
70#define POWEROFF_CMD_PATH_LEN	256
71extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
72
73extern void orderly_poweroff(bool force);
74extern void orderly_reboot(void);
75
76/*
77 * Emergency restart, callable from an interrupt handler.
78 */
79
80extern void emergency_restart(void);
81#include <asm/emergency-restart.h>
82
83#endif /* _LINUX_REBOOT_H */
84