Squashed 'lib/lufa/' content from commit 385d40300

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git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b

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diff --git a/LUFA/Drivers/Board/AVR8/CULV3/Buttons.h b/LUFA/Drivers/Board/AVR8/CULV3/Buttons.h
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+++ b/LUFA/Drivers/Board/AVR8/CULV3/Buttons.h
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Board specific LED driver header for the Busware CULV3.
+ *  \copydetails Group_LEDs_CULV3
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the Buttons driver
+ *        dispatch header located in LUFA/Drivers/Board/LEDs.h.
+ */
+
+/** \ingroup Group_Buttons
+ *  \defgroup Group_Buttons_CULV3 CULV3
+ *  \brief Board specific Buttons driver header for the Busware CULV3.
+ *
+ *  Board specific Buttons driver header for the Busware CUL V3 (http://busware.de/tiki-index.php?page=CUL).
+ *
+ *  <table>
+ *    <tr><th>Name</th><th>Info</th><th>Active Level</th><th>Port Pin</th></tr>
+ *    <tr><td>BUTTONS_BUTTON1</td><td>HWB Button</td><td>Low</td><td>PORTE.2</td></tr>
+ *  </table>
+ *
+ *  @{
+ */
+
+#ifndef __BUTTONS_CULV3_H__
+#define __BUTTONS_CULV3_H__
+
+	/* Includes: */
+		#include "../../../../Common/Common.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_BUTTONS_H)
+			#error Do not include this file directly. Include LUFA/Drivers/Board/Buttons.h instead.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Button mask for the first button on the board. */
+			#define BUTTONS_BUTTON1      (1 << 2)
+
+		/* Inline Functions: */
+		#if !defined(__DOXYGEN__)
+			static inline void Buttons_Init(void)
+			{
+				DDRE  &= ~BUTTONS_BUTTON1;
+				PORTE |=  BUTTONS_BUTTON1;
+			}
+
+			static inline void Buttons_Disable(void)
+			{
+				DDRE  &= ~BUTTONS_BUTTON1;
+				PORTE &= ~BUTTONS_BUTTON1;
+			}
+
+			static inline uint8_t Buttons_GetStatus(void) ATTR_WARN_UNUSED_RESULT;
+			static inline uint8_t Buttons_GetStatus(void)
+			{
+				return ((PINE & BUTTONS_BUTTON1) ^ BUTTONS_BUTTON1);
+			}
+		#endif
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+