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freebsd-dev/sys/dev/syscons/apm/apm_saver.c

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Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
/*-
* 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>
select() DKI is now in <sys/selinfo.h>.
2001-01-09 04:33:49 +00:00
#include <sys/selinfo.h>
Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
#include <machine/apm_bios.h>
#include <machine/pc/bios.h>
Added PC-98 apm support. Submitted by: MURAMATSU Atsushi <amura@ma3.seikyou.ne.jp>
2001-01-22 11:27:25 +00:00
#ifdef PC98
Added necessary include for pc98.
2001-01-25 09:56:04 +00:00
#include <machine/bus.h>
Added PC-98 apm support. Submitted by: MURAMATSU Atsushi <amura@ma3.seikyou.ne.jp>
2001-01-22 11:27:25 +00:00
#include <pc98/apm/apm.h>
#else
Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
#include <i386/apm/apm.h>
Added PC-98 apm support. Submitted by: MURAMATSU Atsushi <amura@ma3.seikyou.ne.jp>
2001-01-22 11:27:25 +00:00
#endif
Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
Remove __P.
2002-03-20 06:48:11 +00:00
extern int apm_display(int newstate);
Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
extern struct apm_softc apm_softc;
static int blanked=0;
static int
apm_saver(video_adapter_t *adp, int blank)
{
Don't needlessly indirect the APM softstate. It does nothing but obfuscate the code.
2000-10-31 21:00:15 +00:00
if (!apm_softc.initialized || !apm_softc.active)
Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
return 0;
if (blank==blanked)
return 0;
blanked=blank;
apm_display(!blanked);
return 0;
}
static int
apm_init(video_adapter_t *adp)
{
Don't needlessly indirect the APM softstate. It does nothing but obfuscate the code.
2000-10-31 21:00:15 +00:00
if (!apm_softc.initialized || !apm_softc.active)
Add the apm_saver syscons screen saver module. 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.
1999-10-02 03:56:42 +00:00
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);
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