472a4993b0
apm_saver uses the apm_display() routine from the apm system to "suspend" the "display" part of the machine. This is beneficial for some laptops (or other machines with non-traditional displays) that choke on the 'green' saver's effect. Another way of looking at this is that it's the same as a screen saver that does an 'apm -d 0' to blank the display and an 'apm -d 1' to bring it back. One probably ought to use these commands to make sure the effect will be correct before using it unattended.
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 1999 Nick Sayer (who stole shamelessly from blank_saver)
|
|
* 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,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 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.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/consio.h>
|
|
#include <sys/fbio.h>
|
|
|
|
#include <dev/fb/fbreg.h>
|
|
#include <dev/fb/splashreg.h>
|
|
#include <dev/syscons/syscons.h>
|
|
|
|
#include <sys/select.h>
|
|
#include <machine/apm_bios.h>
|
|
#include <machine/pc/bios.h>
|
|
#include <i386/apm/apm.h>
|
|
|
|
extern int apm_display __P((int newstate));
|
|
|
|
extern struct apm_softc apm_softc;
|
|
|
|
static int blanked=0;
|
|
|
|
static int
|
|
apm_saver(video_adapter_t *adp, int blank)
|
|
{
|
|
struct apm_softc *sc = &apm_softc;
|
|
|
|
if (!sc->initialized || !sc->active)
|
|
return 0;
|
|
|
|
if (blank==blanked)
|
|
return 0;
|
|
|
|
blanked=blank;
|
|
|
|
apm_display(!blanked);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
apm_init(video_adapter_t *adp)
|
|
{
|
|
struct apm_softc *sc = &apm_softc;
|
|
|
|
if (!sc->initialized || !sc->active)
|
|
printf("WARNING: apm_saver module requires apm enabled\n");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
apm_term(video_adapter_t *adp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static scrn_saver_t apm_module = {
|
|
"apm_saver", apm_init, apm_term, apm_saver, NULL,
|
|
};
|
|
|
|
SAVER_MODULE(apm_saver, apm_module);
|