From 17ee9d00bc1ae1e598c38f25826f861e4bc6c3ce Mon Sep 17 00:00:00 2001 From: Søren Schmidt Date: Wed, 22 Feb 1995 13:48:07 +0000 Subject: Next syscons update (given up on numbering :) Removed screensavers from syscons, they are now LKM's. This makes it possible to do some really "interesting" screensavers... Fixed bug that sometimes caused garbage to appear when leaving "scroll-lock" history. Reformattet indentation, it got too deep for a normal 80 pos screen. Split up in syscons.c & syscons.h for use with the saver-lkm's. Temporarily removed -s option from vidcontrol, savers should now be loaded with modload. --- sys/dev/syscons/blank/blank_saver.c | 81 +++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 sys/dev/syscons/blank/blank_saver.c (limited to 'sys/dev/syscons/blank') diff --git a/sys/dev/syscons/blank/blank_saver.c b/sys/dev/syscons/blank/blank_saver.c new file mode 100644 index 000000000000..9362c0bdc4cf --- /dev/null +++ b/sys/dev/syscons/blank/blank_saver.c @@ -0,0 +1,81 @@ +/*- + * Copyright (c) 1995 Søren Schmidt + * 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 + * in this position and unchanged. + * 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 withough 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. + * + * $Id$ + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +MOD_MISC("blank_saver") + +void (*current_saver)(); +void (*old_saver)(); + +static void +blank_saver(int blank) +{ + u_char val; + if (blank) { + scrn_blanked = 1; + outb(TSIDX, 0x01); val = inb(TSREG); + outb(TSIDX, 0x01); outb(TSREG, val | 0x20); + } + else { + outb(TSIDX, 0x01); val = inb(TSREG); + outb(TSIDX, 0x01); outb(TSREG, val & 0xDF); + scrn_blanked = 0; + } +} + +saver_load(struct lkm_table *lkmtp, int cmd) +{ + (*current_saver)(0); + old_saver = current_saver; + current_saver = blank_saver; + uprintf("blank screen saver installed\n"); + return 0; +} + +saver_unload(struct lkm_table *lkmtp, int cmd) +{ + (*current_saver)(0); + current_saver = old_saver; + uprintf("blank screen saver removed\n"); + return 0; +} + +saver_init(struct lkm_table *lkmtp, int cmd, int ver) +{ + DISPATCH(lkmtp, cmd, ver, saver_load, saver_unload, nosys); +} -- cgit v1.3