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/star/star_saver.c 56043 2000-01-15 15:25:43Z yokota $
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 <machine/pc/display.h>
39
40#include <dev/fb/fbreg.h>
41#include <dev/fb/splashreg.h>
42#include <dev/syscons/syscons.h>
43
44#define NUM_STARS 50
45
46static int blanked;
47
48/*
49 * Alternate saver that got its inspiration from a well known utility
50 * package for an inferior^H^H^H^H^H^Hfamous OS.
51 */
52static int
53star_saver(video_adapter_t *adp, int blank)
54{
55 sc_softc_t *sc;
56 scr_stat *scp;
57 int cell, i;
58 char pattern[] = {"...........++++*** "};
59#ifndef PC98
60 char colors[] = {FG_DARKGREY, FG_LIGHTGREY,
61 FG_WHITE, FG_LIGHTCYAN};
62#else
63 char colors[] = {FG_BLUE, FG_LIGHTGREY,
64 FG_LIGHTGREY, FG_CYAN};
65#endif /* PC98 */
66 static u_short stars[NUM_STARS][2];
67
68 sc = sc_find_softc(adp, NULL);
69 if (sc == NULL)
70 return EAGAIN;
71 scp = sc->cur_scp;
72
73 if (blank) {
74 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
75 return EAGAIN;
76 if (!blanked) {
77#ifdef PC98
78 if (epson_machine_id == 0x20) {
79 outb(0x43f, 0x42);
80 outb(0x0c17, inb(0xc17) & ~0x08);
81 outb(0x43f, 0x40);
82 }
83#endif /* PC98 */
84 /* clear the screen and set the border color */
85 sc_vtb_clear(&scp->scr, sc->scr_map[0x20],
86 (FG_LIGHTGREY | BG_BLACK) << 8);
87 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
88 sc_set_border(scp, 0);
89 blanked = TRUE;
90 for(i=0; i<NUM_STARS; i++) {
91 stars[i][0] =
92 random() % (scp->xsize*scp->ysize);
93 stars[i][1] = 0;
94 }
95 }
96 cell = random() % NUM_STARS;
97 sc_vtb_putc(&scp->scr, stars[cell][0],
98 sc->scr_map[pattern[stars[cell][1]]],
99 colors[random()%sizeof(colors)] << 8);
100 if ((stars[cell][1]+=(random()%4)) >= sizeof(pattern)-1) {
101 stars[cell][0] = random() % (scp->xsize*scp->ysize);
102 stars[cell][1] = 0;
103 }
104 }
105 else {
106#ifdef PC98
107 if (epson_machine_id == 0x20) {
108 outb(0x43f, 0x42);
109 outb(0x0c17, inb(0xc17) | 0x08);
110 outb(0x43f, 0x40);
111 }
112#endif /* PC98 */
113 blanked = FALSE;
114 }
115 return 0;
116}
117
118static int
119star_init(video_adapter_t *adp)
120{
121 blanked = FALSE;
122 return 0;
123}
124
125static int
126star_term(video_adapter_t *adp)
127{
128 return 0;
129}
130
131static scrn_saver_t star_module = {
132 "star_saver", star_init, star_term, star_saver, NULL,
133};
134
135SAVER_MODULE(star_saver, star_module);