2 * Copyright (c) 2001 Mitsuru IWASAKI
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
25 * $DragonFly: src/sys/kern/subr_power.c,v 1.2 2006/12/23 01:35:04 swildner Exp $
28 #include <sys/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/systm.h>
34 #include <sys/power.h>
36 static u_int power_pm_type
= POWER_PM_TYPE_NONE
;
37 static power_pm_fn_t power_pm_fn
= NULL
;
38 static void *power_pm_arg
= NULL
;
41 power_pm_register(u_int pm_type
, power_pm_fn_t pm_fn
, void *pm_arg
)
45 if (power_pm_type
== POWER_PM_TYPE_NONE
||
46 power_pm_type
== pm_type
) {
47 power_pm_type
= pm_type
;
49 power_pm_arg
= pm_arg
;
59 power_pm_get_type(void)
62 return (power_pm_type
);
66 power_pm_suspend(int state
)
68 if (power_pm_fn
== NULL
)
71 if (state
!= POWER_SLEEP_STATE_STANDBY
&&
72 state
!= POWER_SLEEP_STATE_SUSPEND
&&
73 state
!= POWER_SLEEP_STATE_HIBERNATE
)
76 power_pm_fn(POWER_CMD_SUSPEND
, power_pm_arg
, state
);
83 static int power_profile_state
= POWER_PROFILE_PERFORMANCE
;
86 power_profile_get_state(void)
88 return (power_profile_state
);
92 power_profile_set_state(int state
)
96 if (state
!= power_profile_state
) {
97 power_profile_state
= state
;
99 kprintf("system power profile changed to '%s'\n",
100 (state
== POWER_PROFILE_PERFORMANCE
) ? "performance" : "economy");
106 EVENTHANDLER_INVOKE(power_profile_change
, 0);