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.

1 files changed, 81 insertions, 0 deletions

diff --git a/sys/dev/syscons/blank/blank_saver.c b/sys/dev/syscons/blank/blank_saver.c
new file mode 100644
index 0000000..9362c0b
--- /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 <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("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);
+}