1 files changed, 94 insertions, 0 deletions

diff --git a/firmware/target/coldfire/mpio/backlight-mpio.c b/firmware/target/coldfire/mpio/backlight-mpio.c
new file mode 100644
index 0000000000..1e40e9bb88
--- /dev/null
+++ b/firmware/target/coldfire/mpio/backlight-mpio.c
@@ -0,0 +1,94 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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 = true;
+static int _brightness = DEFAULT_BRIGHTNESS_SETTING;
+
+/* Returns the current state of the backlight (true=ON, false=OFF). */
+bool _backlight_init(void)
+{
+#ifdef BOOTLOADER
+    and_l(~(1<<28),&GPIO_OUT);
+#endif
+    or_l((1<<28),&GPIO_FUNCTION);
+    or_l((1<<28),&GPIO_ENABLE);
+    return true;
+}
+
+void _backlight_hw_on(void)
+{
+#ifndef BOOTLOADER
+    if (_backlight_on)
+        return;
+#endif
+   
+    _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;
+
+#ifndef BOOTLOADER
+    if( _brightness == val && _backlight_on == true )
+        return;
+#endif
+
+    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 */
+}