power.h revision 331722 
1/*-
2 * Copyright (c) 2001 Mitsuru IWASAKI
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: stable/11/sys/sys/power.h 331722 2018-03-29 02:50:57Z eadler $
27 */
28
29#ifndef _SYS_POWER_H_
30#define _SYS_POWER_H_
31
32#include <sys/eventhandler.h>
33
34/* Power management system type */
35#define POWER_PM_TYPE_APM		0x00
36#define POWER_PM_TYPE_ACPI		0x01
37#define POWER_PM_TYPE_NONE		0xff
38
39/* Commands for Power management function */
40#define POWER_CMD_SUSPEND		0x00
41
42/* Sleep state */
43#define POWER_SLEEP_STATE_STANDBY	0x00
44#define POWER_SLEEP_STATE_SUSPEND	0x01
45#define POWER_SLEEP_STATE_HIBERNATE	0x02
46
47typedef int (*power_pm_fn_t)(u_long, void*, ...);
48extern int	 power_pm_register(u_int, power_pm_fn_t, void *);
49extern u_int	 power_pm_get_type(void);
50extern void	 power_pm_suspend(int);
51
52/*
53 * System power API.
54 */
55#define POWER_PROFILE_PERFORMANCE        0
56#define POWER_PROFILE_ECONOMY            1
57
58extern int	power_profile_get_state(void);
59extern void	power_profile_set_state(int);
60
61typedef void (*power_profile_change_hook)(void *, int);
62EVENTHANDLER_DECLARE(power_profile_change, power_profile_change_hook);
63
64#endif	/* !_SYS_POWER_H_ */
65
66