a8445737e7
Kazu writes:
The VESA support code requires vm86 support. Make sure your kernel
configuration file has the following line.
options "VM86"
If you want to statically link the VESA support code to the kernel,
add the following option to the kernel configuration file.
options "VESA"
The vidcontrol command now accepts the following video mode names:
VESA_132x25, VESA_132x43, VESA_132x50, VESA_132x60, VESA_800x600
The VESA_800x600 mode is a raster display mode. The 80x25 text will
be displayed on the 800x600 screen. Useful for some laptop computers.
vidcontrol accepts the new `-i <info>' option, where <info> must be
either `adapter' or `mode'. When the `-i adapter' option is given,
vidcontrol will print basic information (not much) on the video
adapter. When the `-i mode' option is specified, vidcontrol will
list video modes which are actually supported by the video adapter.
Submitted by: Kazutaka YOKOTA yokota@FreeBSD.ORG
148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/*-
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* Copyright (c) 1995-1998 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/exec.h>
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#include <sys/sysent.h>
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#include <sys/lkm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <machine/md_var.h>
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#include <machine/pc/display.h>
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#include <saver.h>
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MOD_MISC(snake_saver);
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static char *message;
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static u_char **messagep;
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static int messagelen;
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static void
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snake_saver(int blank)
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{
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static int dirx, diry;
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int f;
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scr_stat *scp = cur_console;
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/* XXX hack for minimal changes. */
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#define save message
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#define savs messagep
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if (blank) {
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if (scrn_blanked <= 0) {
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fillw((FG_LIGHTGREY|BG_BLACK)<<8 | scr_map[0x20],
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Crtat, scp->xsize * scp->ysize);
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set_border(scp, 0);
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dirx = (scp->xpos ? 1 : -1);
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diry = (scp->ypos ?
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scp->xsize : -scp->xsize);
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for (f=0; f< messagelen; f++)
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savs[f] = (u_char *)Crtat + 2 *
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(scp->xpos+scp->ypos*scp->xsize);
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*(savs[0]) = scr_map[*save];
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f = scp->ysize * scp->xsize + 5;
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outb(crtc_addr, 14);
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outb(crtc_addr+1, f >> 8);
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outb(crtc_addr, 15);
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outb(crtc_addr+1, f & 0xff);
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scrn_blanked = 1;
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}
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if (scrn_blanked++ < 4)
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return;
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scrn_blanked = 1;
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*(savs[messagelen-1]) = scr_map[0x20];
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for (f=messagelen-1; f > 0; f--)
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savs[f] = savs[f-1];
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f = (savs[0] - (u_char *)Crtat) / 2;
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if ((f % scp->xsize) == 0 ||
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(f % scp->xsize) == scp->xsize - 1 ||
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(random() % 50) == 0)
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dirx = -dirx;
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if ((f / scp->xsize) == 0 ||
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(f / scp->xsize) == scp->ysize - 1 ||
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(random() % 20) == 0)
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diry = -diry;
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savs[0] += 2*dirx + 2*diry;
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for (f=messagelen-1; f>=0; f--)
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*(savs[f]) = scr_map[save[f]];
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}
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else {
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if (scrn_blanked > 0) {
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set_border(scp, scp->border);
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scrn_blanked = 0;
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}
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}
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}
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static int
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snake_saver_load(struct lkm_table *lkmtp, int cmd)
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{
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int err;
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if (cur_console->mode >= M_VESA_BASE)
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return ENODEV;
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messagelen = strlen(ostype) + 1 + strlen(osrelease);
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message = malloc(messagelen + 1, M_DEVBUF, M_WAITOK);
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sprintf(message, "%s %s", ostype, osrelease);
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messagep = malloc(messagelen * sizeof *messagep, M_DEVBUF, M_WAITOK);
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err = add_scrn_saver(snake_saver);
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if (err != 0) {
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free(message, M_DEVBUF);
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free(messagep, M_DEVBUF);
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}
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return err;
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}
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static int
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snake_saver_unload(struct lkm_table *lkmtp, int cmd)
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{
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int err;
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err = remove_scrn_saver(snake_saver);
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if (err == 0) {
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free(message, M_DEVBUF);
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free(messagep, M_DEVBUF);
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}
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return err;
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}
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int
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snake_saver_mod(struct lkm_table *lkmtp, int cmd, int ver)
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{
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MOD_DISPATCH(snake_saver, lkmtp, cmd, ver,
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snake_saver_load, snake_saver_unload, lkm_nullcmd);
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}
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