1*86d7f5d3SJohn Marino /*-
2*86d7f5d3SJohn Marino * Copyright (c) 2001 Mitsuru IWASAKI
3*86d7f5d3SJohn Marino * All rights reserved.
4*86d7f5d3SJohn Marino *
5*86d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without
6*86d7f5d3SJohn Marino * modification, are permitted provided that the following conditions
7*86d7f5d3SJohn Marino * are met:
8*86d7f5d3SJohn Marino * 1. Redistributions of source code must retain the above copyright
9*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer.
10*86d7f5d3SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
11*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in the
12*86d7f5d3SJohn Marino * documentation and/or other materials provided with the distribution.
13*86d7f5d3SJohn Marino *
14*86d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*86d7f5d3SJohn Marino * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*86d7f5d3SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*86d7f5d3SJohn Marino * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*86d7f5d3SJohn Marino * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*86d7f5d3SJohn Marino * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*86d7f5d3SJohn Marino * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*86d7f5d3SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*86d7f5d3SJohn Marino * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*86d7f5d3SJohn Marino * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*86d7f5d3SJohn Marino * SUCH DAMAGE.
25*86d7f5d3SJohn Marino *
26*86d7f5d3SJohn Marino * $DragonFly: src/sys/kern/subr_power.c,v 1.2 2006/12/23 00:35:04 swildner Exp $
27*86d7f5d3SJohn Marino */
28*86d7f5d3SJohn Marino
29*86d7f5d3SJohn Marino #include <sys/param.h>
30*86d7f5d3SJohn Marino #include <sys/systm.h>
31*86d7f5d3SJohn Marino #include <sys/proc.h>
32*86d7f5d3SJohn Marino
33*86d7f5d3SJohn Marino #include <sys/power.h>
34*86d7f5d3SJohn Marino
35*86d7f5d3SJohn Marino static u_int power_pm_type = POWER_PM_TYPE_NONE;
36*86d7f5d3SJohn Marino static power_pm_fn_t power_pm_fn = NULL;
37*86d7f5d3SJohn Marino static void *power_pm_arg = NULL;
38*86d7f5d3SJohn Marino
39*86d7f5d3SJohn Marino int
power_pm_register(u_int pm_type,power_pm_fn_t pm_fn,void * pm_arg)40*86d7f5d3SJohn Marino power_pm_register(u_int pm_type, power_pm_fn_t pm_fn, void *pm_arg)
41*86d7f5d3SJohn Marino {
42*86d7f5d3SJohn Marino int error;
43*86d7f5d3SJohn Marino
44*86d7f5d3SJohn Marino if (power_pm_type == POWER_PM_TYPE_NONE ||
45*86d7f5d3SJohn Marino power_pm_type == pm_type) {
46*86d7f5d3SJohn Marino power_pm_type = pm_type;
47*86d7f5d3SJohn Marino power_pm_fn = pm_fn;
48*86d7f5d3SJohn Marino power_pm_arg = pm_arg;
49*86d7f5d3SJohn Marino error = 0;
50*86d7f5d3SJohn Marino } else {
51*86d7f5d3SJohn Marino error = ENXIO;
52*86d7f5d3SJohn Marino }
53*86d7f5d3SJohn Marino
54*86d7f5d3SJohn Marino return (error);
55*86d7f5d3SJohn Marino }
56*86d7f5d3SJohn Marino
57*86d7f5d3SJohn Marino u_int
power_pm_get_type(void)58*86d7f5d3SJohn Marino power_pm_get_type(void)
59*86d7f5d3SJohn Marino {
60*86d7f5d3SJohn Marino
61*86d7f5d3SJohn Marino return (power_pm_type);
62*86d7f5d3SJohn Marino }
63*86d7f5d3SJohn Marino
64*86d7f5d3SJohn Marino void
power_pm_suspend(int state)65*86d7f5d3SJohn Marino power_pm_suspend(int state)
66*86d7f5d3SJohn Marino {
67*86d7f5d3SJohn Marino if (power_pm_fn == NULL)
68*86d7f5d3SJohn Marino return;
69*86d7f5d3SJohn Marino
70*86d7f5d3SJohn Marino if (state != POWER_SLEEP_STATE_STANDBY &&
71*86d7f5d3SJohn Marino state != POWER_SLEEP_STATE_SUSPEND &&
72*86d7f5d3SJohn Marino state != POWER_SLEEP_STATE_HIBERNATE)
73*86d7f5d3SJohn Marino return;
74*86d7f5d3SJohn Marino
75*86d7f5d3SJohn Marino power_pm_fn(POWER_CMD_SUSPEND, power_pm_arg, state);
76*86d7f5d3SJohn Marino }
77*86d7f5d3SJohn Marino
78*86d7f5d3SJohn Marino /*
79*86d7f5d3SJohn Marino * Power profile.
80*86d7f5d3SJohn Marino */
81*86d7f5d3SJohn Marino
82*86d7f5d3SJohn Marino static int power_profile_state = POWER_PROFILE_PERFORMANCE;
83*86d7f5d3SJohn Marino
84*86d7f5d3SJohn Marino int
power_profile_get_state(void)85*86d7f5d3SJohn Marino power_profile_get_state(void)
86*86d7f5d3SJohn Marino {
87*86d7f5d3SJohn Marino return (power_profile_state);
88*86d7f5d3SJohn Marino }
89*86d7f5d3SJohn Marino
90*86d7f5d3SJohn Marino void
power_profile_set_state(int state)91*86d7f5d3SJohn Marino power_profile_set_state(int state)
92*86d7f5d3SJohn Marino {
93*86d7f5d3SJohn Marino int changed;
94*86d7f5d3SJohn Marino
95*86d7f5d3SJohn Marino if (state != power_profile_state) {
96*86d7f5d3SJohn Marino power_profile_state = state;
97*86d7f5d3SJohn Marino changed = 1;
98*86d7f5d3SJohn Marino kprintf("system power profile changed to '%s'\n",
99*86d7f5d3SJohn Marino (state == POWER_PROFILE_PERFORMANCE) ? "performance" : "economy");
100*86d7f5d3SJohn Marino } else {
101*86d7f5d3SJohn Marino changed = 0;
102*86d7f5d3SJohn Marino }
103*86d7f5d3SJohn Marino
104*86d7f5d3SJohn Marino if (changed)
105*86d7f5d3SJohn Marino EVENTHANDLER_INVOKE(power_profile_change, 0);
106*86d7f5d3SJohn Marino }
107*86d7f5d3SJohn Marino
108