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authornsayer <nsayer@FreeBSD.org>1999-10-02 03:56:42 +0000
committernsayer <nsayer@FreeBSD.org>1999-10-02 03:56:42 +0000
commit4f9461c0bd8dd6d2fb8a4f0df36c1666e4e25c98 (patch)
treea32db30f40733a8d5898e3cf4bfa569617ef5379 /sys/modules
parentf8cb01182379dbcbe1bdfe7d387e7354d7a66d27 (diff)
downloadFreeBSD-src-4f9461c0bd8dd6d2fb8a4f0df36c1666e4e25c98.zip
FreeBSD-src-4f9461c0bd8dd6d2fb8a4f0df36c1666e4e25c98.tar.gz
Add the apm_saver syscons screen saver module.
apm_saver uses the apm_display() routine from the apm system to "suspend" the "display" part of the machine. This is beneficial for some laptops (or other machines with non-traditional displays) that choke on the 'green' saver's effect. Another way of looking at this is that it's the same as a screen saver that does an 'apm -d 0' to blank the display and an 'apm -d 1' to bring it back. One probably ought to use these commands to make sure the effect will be correct before using it unattended.
Diffstat (limited to 'sys/modules')
-rw-r--r--sys/modules/syscons/Makefile1
-rw-r--r--sys/modules/syscons/apm/Makefile9
-rw-r--r--sys/modules/syscons/apm/apm_saver.c91
3 files changed, 101 insertions, 0 deletions
diff --git a/sys/modules/syscons/Makefile b/sys/modules/syscons/Makefile
index 3e5ab72..4915900 100644
--- a/sys/modules/syscons/Makefile
+++ b/sys/modules/syscons/Makefile
@@ -1,6 +1,7 @@
# $FreeBSD$
SUBDIR =
+SUBDIR += apm
SUBDIR += blank
SUBDIR += daemon
SUBDIR += fade
diff --git a/sys/modules/syscons/apm/Makefile b/sys/modules/syscons/apm/Makefile
new file mode 100644
index 0000000..00a889f
--- /dev/null
+++ b/sys/modules/syscons/apm/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+KMOD= apm_saver
+SRCS= apm_saver.c
+
+NOMAN=
+CFLAGS+= -I${.CURDIR}/..
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/syscons/apm/apm_saver.c b/sys/modules/syscons/apm/apm_saver.c
new file mode 100644
index 0000000..d7863ba
--- /dev/null
+++ b/sys/modules/syscons/apm/apm_saver.c
@@ -0,0 +1,91 @@
+/*-
+ * Copyright (c) 1999 Nick Sayer (who stole shamelessly from blank_saver)
+ * 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,
+ * without modification, immediately at the beginning of the file.
+ * 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 without 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/consio.h>
+#include <sys/fbio.h>
+
+#include <dev/fb/fbreg.h>
+#include <dev/fb/splashreg.h>
+#include <dev/syscons/syscons.h>
+
+#include <sys/select.h>
+#include <machine/apm_bios.h>
+#include <machine/pc/bios.h>
+#include <i386/apm/apm.h>
+
+extern int apm_display __P((int newstate));
+
+extern struct apm_softc apm_softc;
+
+static int blanked=0;
+
+static int
+apm_saver(video_adapter_t *adp, int blank)
+{
+ struct apm_softc *sc = &apm_softc;
+
+ if (!sc->initialized || !sc->active)
+ return 0;
+
+ if (blank==blanked)
+ return 0;
+
+ blanked=blank;
+
+ apm_display(!blanked);
+
+ return 0;
+}
+
+static int
+apm_init(video_adapter_t *adp)
+{
+ struct apm_softc *sc = &apm_softc;
+
+ if (!sc->initialized || !sc->active)
+ printf("WARNING: apm_saver module requires apm enabled\n");
+ return 0;
+}
+
+static int
+apm_term(video_adapter_t *adp)
+{
+ return 0;
+}
+
+static scrn_saver_t apm_module = {
+ "apm_saver", apm_init, apm_term, apm_saver, NULL,
+};
+
+SAVER_MODULE(apm_saver, apm_module);
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