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Diffstat (limited to 'firmware/target/coldfire/mpio/hd200/backlight-hd200.c')
-rw-r--r--firmware/target/coldfire/mpio/hd200/backlight-hd200.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/firmware/target/coldfire/mpio/hd200/backlight-hd200.c b/firmware/target/coldfire/mpio/hd200/backlight-hd200.c
new file mode 100644
index 0000000000..783376c91e
--- /dev/null
+++ b/firmware/target/coldfire/mpio/hd200/backlight-hd200.c
@@ -0,0 +1,86 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id:$
+ *
+ * Copyright (C) 2010 Marcin Bukat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+#include "cpu.h"
+#include "kernel.h"
+#include "system.h"
+#include "backlight.h"
+#include "backlight-target.h"
+#include "lcd.h"
+
+static bool _backlight_on = false;
+static int _brightness = DEFAULT_BRIGHTNESS_SETTING;
+
+/* Returns the current state of the backlight (true=ON, false=OFF). */
+bool _backlight_init(void)
+{
+ and_l(~(1<<28),&GPIO_OUT);
+ or_l((1<<28),&GPIO_FUNCTION);
+ or_l((1<<28),&GPIO_ENABLE);
+ return true;
+}
+
+void _backlight_hw_on(void)
+{
+
+ if (_backlight_on)
+ return;
+
+ _backlight_set_brightness(_brightness);
+ _backlight_on = true;
+
+}
+
+void _backlight_hw_off(void)
+{
+ /* GPIO28 low */
+ and_l(~(1<<28),&GPIO_OUT);
+ _backlight_on = false;
+}
+
+void _backlight_set_brightness(int val)
+{
+ unsigned char i;
+
+ and_l(~(1<<28),&GPIO_OUT);
+ sleep(4);
+
+ for (i=0;i<val;i++)
+ {
+ or_l((1<<28),&GPIO_OUT);
+ and_l(~(1<<28),&GPIO_OUT);
+ }
+
+ or_l((1<<28),&GPIO_OUT);
+
+ _brightness = val;
+}
+
+void _remote_backlight_on(void)
+{
+ /* I don't have remote to play with */
+}
+
+void _remote_backlight_off(void)
+{
+ /* I don't have remote to play with */
+}