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Support for system "power profiles". Currently we support two profiles;

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"economy" and "performance".
This commit is contained in:
msmith 2001-07-07 01:45:37 +00:00
parent 92b94fe6a1
commit 2cb9cb84df
1 changed files with 64 additions and 0 deletions
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sys/dev/acpica/acpi_powerprofile.c Normal file
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/*-
* Copyright (c) 2001 Michael Smith
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include "opt_acpi.h" /* XXX trim includes */
#include <sys/param.h>
#include <sys/mutex.h>
#include <sys/bus.h>
#include "acpi.h"
#include <dev/acpica/acpivar.h>
static int powerprofile_state = POWERPROFILE_PERFORMANCE;
int
powerprofile_get_state(void)
{
return(powerprofile_state);
}
void
powerprofile_set_state(int state)
{
int changed;
ACPI_LOCK;
if (state != powerprofile_state) {
powerprofile_state = state;
changed = 1;
printf("system power profile changed to '%s'\n",
(state == POWERPROFILE_PERFORMANCE) ? "performance" : "economy");
} else {
changed = 0;
}
ACPI_UNLOCK;
if (changed)
EVENTHANDLER_INVOKE(powerprofile_change);
}