summaryrefslogtreecommitdiff
path: root/sys/arch/amiga/dev/ite_blank.c
diff options
context:
space:
mode:
authorMarc Espie <espie@cvs.openbsd.org>1999-11-05 17:15:35 +0000
committerMarc Espie <espie@cvs.openbsd.org>1999-11-05 17:15:35 +0000
commit2c5505dbf5abe059b149d7a319cb7542bce1ff84 (patch)
tree04562a47fbdd2274b82d142fe94bd2619f013e5b /sys/arch/amiga/dev/ite_blank.c
parent2cddd548e9a652e181b02800b7f271c8bf7d5af9 (diff)
ite screen blanker, set to 10 minutes by default.
(niklas@ finally looked at the code)
Diffstat (limited to 'sys/arch/amiga/dev/ite_blank.c')
-rw-r--r--sys/arch/amiga/dev/ite_blank.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/sys/arch/amiga/dev/ite_blank.c b/sys/arch/amiga/dev/ite_blank.c
new file mode 100644
index 00000000000..b1e1a64012b
--- /dev/null
+++ b/sys/arch/amiga/dev/ite_blank.c
@@ -0,0 +1,121 @@
+/* $OpenBSD: ite_blank.c,v 1.1 1999/11/05 17:15:34 espie Exp $ */
+/*-
+ * Copyright (c) 1999 Marc Espie.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Marc Espie for the OpenBSD
+ * Project.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
+ * ``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 OPENBSD
+ * PROJECT OR CONTRIBUTORS 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.
+ */
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/ioctl.h>
+#include <amiga/dev/grfioctl.h>
+#include <amiga/dev/grfvar.h>
+#include <amiga/dev/itevar.h>
+#include <amiga/dev/ite_blank.h>
+
+#define SUBR_BLANK(ip, mode) ((ip)->grf->g_mode((ip)->grf, GM_GRFIOCTL, &(mode), GRFIOCBLANK, (ip)->grf->g_grfdev ))
+
+void ite_blank __P((void *));
+void ite_unblank __P((struct ite_softc *));
+
+static int blanked_screen = 0;
+static int blank_enabled = 0;
+static long last_schedule = 0L;
+int blank_time = 600;
+
+void
+ite_blank(arg)
+ void *arg;
+{
+ struct ite_softc *kbd = arg;
+ int data = GRFIOCBLANK_DARK;
+
+ SUBR_BLANK(kbd, data);
+ blanked_screen = 1;
+}
+
+void
+ite_unblank(kbd)
+ struct ite_softc *kbd;
+{
+ if (blanked_screen) {
+ int data = GRFIOCBLANK_LIVE;
+
+ SUBR_BLANK(kbd, data);
+ blanked_screen = 0;
+ }
+}
+
+void
+ite_restart_blanker(kbd)
+ struct ite_softc *kbd;
+{
+ int x = spltty();
+
+ /* steal timing trick from pcvt */
+ if (last_schedule != time.tv_sec) {
+ if (blank_enabled && !blanked_screen)
+ untimeout(ite_blank, kbd);
+ if (blank_enabled && blank_time)
+ timeout(ite_blank, kbd, blank_time * hz);
+ last_schedule = time.tv_sec;
+ }
+ ite_unblank(kbd);
+
+ splx(x);
+}
+
+void
+ite_reset_blanker(kbd)
+ struct ite_softc *kbd;
+{
+ last_schedule = 0L;
+ ite_restart_blanker(kbd);
+}
+
+void
+ite_disable_blanker(kbd)
+ struct ite_softc *kbd;
+{
+ int x = spltty();
+
+ untimeout(ite_blank, kbd);
+ blank_enabled = 0;
+ ite_unblank(kbd);
+
+ splx(x);
+}
+
+void
+ite_enable_blanker(kbd)
+ struct ite_softc *kbd;
+{
+ blank_enabled = 1;
+ ite_reset_blanker(kbd);
+}
+