From 0b01ca69e073c3e140f6e819be62665ad6d513ae Mon Sep 17 00:00:00 2001
From: Amaury Pouly <amaury.pouly@gmail.com>
Date: Wed, 19 Oct 2016 18:19:57 +0200
Subject: nwztools/plattools: add adc test

Change-Id: Ic3ef964e8b5cc7b8ca3f02f141e9e4436a4d41db
---
 utils/nwztools/plattools/nwz_fb.h | 56 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 utils/nwztools/plattools/nwz_fb.h

(limited to 'utils/nwztools/plattools/nwz_fb.h')

diff --git a/utils/nwztools/plattools/nwz_fb.h b/utils/nwztools/plattools/nwz_fb.h
new file mode 100644
index 0000000000..c857c5eb8a
--- /dev/null
+++ b/utils/nwztools/plattools/nwz_fb.h
@@ -0,0 +1,56 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2016 Amaury Pouly
+ *
+ * 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.
+ *
+ ****************************************************************************/
+#ifndef __NWZ_FB_H__
+#define __NWZ_FB_H__
+
+#define NWZ_FB_LCD_DEV  "/dev/fb/0"
+#define NWZ_FB_TV_DEV   "/dev/fb/1"
+
+#define NWZ_FB_TYPE 'N'
+
+/* How backlight works:
+ *
+ * The brightness interface is a bit strange. There 6 levels: 0 throught 5.
+ * Level 0 means backlight off. When changing brightness, one sets level to the
+ * target brightness. The driver is gradually change the brightness to reach the
+ * target level. The step parameters control how many hardware steps will be done.
+ * For example, setting step to 1 will brutally change the level in one step.
+ * Setting step to 2 will change brightness in two steps: one intermediate and
+ * finally the target one. The more steps, the more gradual the transition. The
+ * period parameters controls the speed to changes between steps. Using this
+ * interface, one can achieve fade in/out at various speeds. */
+#define NWZ_FB_BL_MIN_LEVEL     0
+#define NWZ_FB_BL_MAX_LEVEL     5
+#define NWZ_FB_BL_MIN_STEP      1
+#define NWZ_FB_BL_MAX_STEP      100
+#define NWZ_FB_BL_MIN_PERIOD    10
+
+struct nwz_fb_brightness
+{
+    int level; /* brightness level: 0-5 */
+    int step; /* number of hardware steps to do when changing: 1-100 */
+    int period; /* period in ms between steps when changing: >=10 */
+};
+
+#define NWZ_FB_SET_BRIGHTNESS _IOW(NWZ_FB_TYPE, 0x07, struct nwz_fb_brightness)
+#define NWZ_FB_GET_BRIGHTNESS _IOR(NWZ_FB_TYPE, 0x08, struct nwz_fb_brightness)
+
+#endif /* __NWZ_FB_H__ */
-- 
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