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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /include/linux/reboot.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'include/linux/reboot.h')
-rw-r--r-- | include/linux/reboot.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/include/linux/reboot.h b/include/linux/reboot.h new file mode 100644 index 00000000..e0879a70 --- /dev/null +++ b/include/linux/reboot.h @@ -0,0 +1,89 @@ +#ifndef _LINUX_REBOOT_H +#define _LINUX_REBOOT_H + +/* + * Magic values required to use _reboot() system call. + */ + +#define LINUX_REBOOT_MAGIC1 0xfee1dead +#define LINUX_REBOOT_MAGIC2 672274793 +#define LINUX_REBOOT_MAGIC2A 85072278 +#define LINUX_REBOOT_MAGIC2B 369367448 +#define LINUX_REBOOT_MAGIC2C 537993216 + + +/* + * Commands accepted by the _reboot() system call. + * + * RESTART Restart system using default command and mode. + * HALT Stop OS and give system control to ROM monitor, if any. + * CAD_ON Ctrl-Alt-Del sequence causes RESTART command. + * CAD_OFF Ctrl-Alt-Del sequence sends SIGINT to init task. + * POWER_OFF Stop OS and remove all power from system, if possible. + * RESTART2 Restart system using given command string. + * SW_SUSPEND Suspend system using software suspend if compiled in. + * KEXEC Restart system using a previously loaded Linux kernel + */ + +#define LINUX_REBOOT_CMD_RESTART 0x01234567 +#define LINUX_REBOOT_CMD_HALT 0xCDEF0123 +#define LINUX_REBOOT_CMD_CAD_ON 0x89ABCDEF +#define LINUX_REBOOT_CMD_CAD_OFF 0x00000000 +#define LINUX_REBOOT_CMD_POWER_OFF 0x4321FEDC +#define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4 +#define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2 +#define LINUX_REBOOT_CMD_KEXEC 0x45584543 + + +#ifdef __KERNEL__ + +#include <linux/notifier.h> + +#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 */ + +extern int register_reboot_notifier(struct notifier_block *); +extern int unregister_reboot_notifier(struct notifier_block *); + + +/* + * Architecture-specific implementations of sys_reboot commands. + */ + +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 int orderly_poweroff(bool force); + +/* + * Emergency restart, callable from an interrupt handler. + */ + +extern void emergency_restart(void); +#include <asm/emergency-restart.h> + +#endif + +#endif /* _LINUX_REBOOT_H */ |