xref: /freebsd/sys/dev/syscons/green/green_saver.c (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
1 /*-
2  * Copyright (c) 1995-1998 Søren 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  * $FreeBSD$
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 
42 static int
43 green_saver(video_adapter_t *adp, int blank)
44 {
45 	vidd_blank_display(adp,
46 	    (blank) ? V_DISPLAY_STAND_BY : V_DISPLAY_ON);
47 	return 0;
48 }
49 
50 static int
51 green_init(video_adapter_t *adp)
52 {
53 	if (vidd_blank_display(adp, V_DISPLAY_ON) == 0)
54 		return 0;
55 	return ENODEV;
56 }
57 
58 static int
59 green_term(video_adapter_t *adp)
60 {
61 	return 0;
62 }
63 
64 static scrn_saver_t green_module = {
65 	"green_saver", green_init, green_term, green_saver, NULL,
66 };
67 
68 SAVER_MODULE(green_saver, green_module);
69