include/linux/reboot.h

   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_FORCE  = 'p',
  29         BOOT_CF9_SAFE   = '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 extern int register_restart_handler(struct notifier_block *);
  42 extern int unregister_restart_handler(struct notifier_block *);
  43 extern void do_kernel_restart(char *cmd);
  44
  45 /*
  46  * Architecture-specific implementations of sys_reboot commands.
  47  */
  48
  49 extern void migrate_to_reboot_cpu(void);
  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 void orderly_poweroff(bool force);
  74 extern void orderly_reboot(void);
  75
  76 /*
  77  * Emergency restart, callable from an interrupt handler.
  78  */
  79
  80 extern void emergency_restart(void);
  81 #include <asm/emergency-restart.h>
  82
  83 #endif /* _LINUX_REBOOT_H */