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author | sos <sos@FreeBSD.org> | 1995-02-22 13:48:07 +0000 |
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committer | sos <sos@FreeBSD.org> | 1995-02-22 13:48:07 +0000 |
commit | a8582ea0491b2759ce277638d63d52662b72c5ed (patch) | |
tree | be2ffef6e40fae103a981c01ec004e3970d1cb63 /sys/dev/syscons/green | |
parent | 243cac450e461fd60527db9de7f7090312bf561c (diff) | |
download | FreeBSD-src-a8582ea0491b2759ce277638d63d52662b72c5ed.zip FreeBSD-src-a8582ea0491b2759ce277638d63d52662b72c5ed.tar.gz |
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.
Diffstat (limited to 'sys/dev/syscons/green')
-rw-r--r-- | sys/dev/syscons/green/green_saver.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/sys/dev/syscons/green/green_saver.c b/sys/dev/syscons/green/green_saver.c new file mode 100644 index 0000000..e6ed074 --- /dev/null +++ b/sys/dev/syscons/green/green_saver.c @@ -0,0 +1,85 @@ +/*- + * 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 <sys/param.h> +#include <sys/systm.h> +#include <sys/conf.h> +#include <sys/exec.h> +#include <sys/sysent.h> +#include <sys/lkm.h> +#include <sys/errno.h> +#include <saver.h> + +MOD_MISC("green_saver") + +void (*current_saver)(); +void (*old_saver)(); + +static void +green_saver(int blank) +{ + u_char val; + if (blank) { + scrn_blanked = 1; + outb(TSIDX, 0x01); val = inb(TSREG); + outb(TSIDX, 0x01); outb(TSREG, val | 0x20); + outb(crtc_addr, 0x17); val = inb(crtc_addr + 1); + outb(crtc_addr + 1, val & ~0x80); + } + else { + outb(TSIDX, 0x01); val = inb(TSREG); + outb(TSIDX, 0x01); outb(TSREG, val & 0xDF); + outb(crtc_addr, 0x17); val = inb(crtc_addr + 1); + outb(crtc_addr + 1, val | 0x80); + scrn_blanked = 0; + } +} + +saver_load(struct lkm_table *lkmtp, int cmd) +{ + (*current_saver)(0); + old_saver = current_saver; + current_saver = green_saver; + uprintf("green screen saver installed\n"); + return 0; +} + +saver_unload(struct lkm_table *lkmtp, int cmd) +{ + (*current_saver)(0); + current_saver = old_saver; + uprintf("green 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); +} |