green_saver.c revision 50477 
1/*-
2 * Copyright (c) 1995-1998 S�ren Schmidt
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/syscons/green/green_saver.c 50477 1999-08-28 01:08:13Z peter $
29 */
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/module.h>
35#include <sys/consio.h>
36#include <sys/fbio.h>
37
38#include <dev/fb/fbreg.h>
39#include <dev/fb/splashreg.h>
40#include <dev/syscons/syscons.h>
41
42static int
43green_saver(video_adapter_t *adp, int blank)
44{
45	(*vidsw[adp->va_index]->blank_display)(adp,
46					       (blank) ? V_DISPLAY_STAND_BY
47						       : V_DISPLAY_ON);
48	return 0;
49}
50
51static int
52green_init(video_adapter_t *adp)
53{
54	if ((*vidsw[adp->va_index]->blank_display)(adp, V_DISPLAY_ON) == 0)
55		return 0;
56	return ENODEV;
57}
58
59static int
60green_term(video_adapter_t *adp)
61{
62	return 0;
63}
64
65static scrn_saver_t green_module = {
66	"green_saver", green_init, green_term, green_saver, NULL,
67};
68
69SAVER_MODULE(green_saver, green_module);
70