/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_REBOOT_H
#define _LINUX_REBOOT_H

#include <linux/notifier.h>
#include <uapi/linux/reboot.h>

struct device;

#define SYS_DOWN 0x0001 /* Notify of system down */
#define SYS_RESTART SYS_DOWN
#define SYS_HALT 0x0002      /* Notify of system halt */
#define SYS_POWER_OFF 0x0003 /* Notify of system power off */

enum reboot_mode {
    REBOOT_UNDEFINED = -1,
    REBOOT_COLD = 0,
    REBOOT_WARM,
    REBOOT_HARD,
    REBOOT_SOFT,
    REBOOT_GPIO,
};
extern enum reboot_mode reboot_mode;
extern enum reboot_mode panic_reboot_mode;

enum reboot_type {
    BOOT_TRIPLE = 't',
    BOOT_KBD = 'k',
    BOOT_BIOS = 'b',
    BOOT_ACPI = 'a',
    BOOT_EFI = 'e',
    BOOT_CF9_FORCE = 'p',
    BOOT_CF9_SAFE = 'q',
};
extern enum reboot_type reboot_type;

extern int reboot_default;
extern int reboot_cpu;
extern int reboot_force;

extern int register_reboot_notifier(struct notifier_block *);
extern int unregister_reboot_notifier(struct notifier_block *);

extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);

extern int register_restart_handler(struct notifier_block *);
extern int unregister_restart_handler(struct notifier_block *);
extern void do_kernel_restart(char *cmd);

#ifdef CONFIG_NO_GKI
extern int register_pre_restart_handler(struct notifier_block *nb);
extern int unregister_pre_restart_handler(struct notifier_block *nb);
extern void do_kernel_pre_restart(char *cmd);
#else
static inline int register_pre_restart_handler(struct notifier_block *nb)
{
    return 0;
}

static inline int unregister_pre_restart_handler(struct notifier_block *nb)
{
    return 0;
}

static inline void do_kernel_pre_restart(char *cmd)
{
}
#endif

/*
 * Architecture-specific implementations of sys_reboot commands.
 */

extern void migrate_to_reboot_cpu(void);
extern void machine_restart(char *cmd);
extern void machine_halt(void);
extern void machine_power_off(void);

extern void machine_shutdown(void);
struct pt_regs;
extern void machine_crash_shutdown(struct pt_regs *);

/*
 * Architecture independent implemenations of sys_reboot commands.
 */

extern void kernel_restart_prepare(char *cmd);
extern void kernel_restart(char *cmd);
extern void kernel_halt(void);
extern void kernel_power_off(void);

extern int C_A_D; /* for sysctl */
void ctrl_alt_del(void);

#define POWEROFF_CMD_PATH_LEN 256
extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];

extern void orderly_poweroff(bool force);
extern void orderly_reboot(void);

/*
 * Emergency restart, callable from an interrupt handler.
 */

extern void emergency_restart(void);
#include <asm/emergency-restart.h>

#endif /* _LINUX_REBOOT_H */