Samsung YP-R1 target port

This is the basic port to the new target Samsung
YP-R1, which runs on a similar platform as YP-R0.
Port is usable, although there are still
some optimizations that have to be done.

Change-Id: If83a8e386369e413581753780c159026d9e41f04

1 files changed, 66 insertions, 0 deletions

diff --git a/firmware/target/hosted/samsungypr/ypr1/backlight-ypr1.c b/firmware/target/hosted/samsungypr/ypr1/backlight-ypr1.c
new file mode 100644
index 0000000000..e4f0457cf9
--- /dev/null
+++ b/firmware/target/hosted/samsungypr/ypr1/backlight-ypr1.c
@@ -0,0 +1,66 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2013 by Lorenzo Miori
+ *
+ * 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 "system.h"
+#include "backlight.h"
+#include "backlight-target.h"
+#include "lcd.h"
+#include "lcd-target.h"
+#include "pmu-ypr1.h"
+
+static bool backlight_on_status = true; /* Is on or off? */
+
+bool _backlight_init(void)
+{
+    /* We have nothing to do */
+    return true;
+}
+
+void _backlight_on(void)
+{
+    if (!backlight_on_status) {
+        _backlight_set_brightness(backlight_brightness);
+    }
+
+    backlight_on_status = true;
+
+}
+
+void _backlight_off(void)
+{
+    if (backlight_on_status) {
+        _backlight_set_brightness(0);
+    }
+
+    backlight_on_status = false;
+}
+
+void _backlight_set_brightness(int brightness)
+{
+    /* Just another check... */
+    if (brightness > MAX_BRIGHTNESS_SETTING) {
+        brightness = MAX_BRIGHTNESS_SETTING;
+    }
+    if (brightness < 0) {
+        brightness = MIN_BRIGHTNESS_SETTING;
+    }
+    /* Do the appropriate ioctl on the linux module */
+    pmu_ioctl(MAX8819_IOCTL_LCD_DIM_CTRL, &brightness);
+}