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 13 enum reboot_mode { 14 REBOOT_COLD = 0, 15 REBOOT_WARM, 16 REBOOT_HARD, 17 REBOOT_SOFT, 18 REBOOT_GPIO, 19 }; 20 extern enum reboot_mode reboot_mode; 21 22 enum 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 = 'p', 29 BOOT_CF9_COND = 'q', 30 }; 31 extern enum reboot_type reboot_type; 32 33 extern int reboot_default; 34 extern int reboot_cpu; 35 extern int reboot_force; 36 37 38 extern int register_reboot_notifier(struct notifier_block *); 39 extern int unregister_reboot_notifier(struct notifier_block *); 40 41 42 /* 43 * Architecture-specific implementations of sys_reboot commands. 44 */ 45 46 extern void migrate_to_reboot_cpu(void); 47 extern void machine_restart(char *cmd); 48 extern void machine_halt(void); 49 extern void machine_power_off(void); 50 51 extern void machine_shutdown(void); 52 struct pt_regs; 53 extern void machine_crash_shutdown(struct pt_regs *); 54 55 /* 56 * Architecture independent implemenations of sys_reboot commands. 57 */ 58 59 extern void kernel_restart_prepare(char *cmd); 60 extern void kernel_restart(char *cmd); 61 extern void kernel_halt(void); 62 extern void kernel_power_off(void); 63 64 extern int C_A_D; /* for sysctl */ 65 void ctrl_alt_del(void); 66 67 #define POWEROFF_CMD_PATH_LEN 256 68 extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN]; 69 70 extern int orderly_poweroff(bool force); 71 72 /* 73 * Emergency restart, callable from an interrupt handler. 74 */ 75 76 extern void emergency_restart(void); 77 #include <asm/emergency-restart.h> 78 79 #endif /* _LINUX_REBOOT_H */ 80