LEDs.h 6.23 KB
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/*
             LUFA Library
     Copyright (C) Dean Camera, 2009.
              
  dean [at] fourwalledcubicle [dot] com
      www.fourwalledcubicle.com
*/

/*
  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

  Permission to use, copy, modify, and distribute this software
  and its documentation for any purpose and without fee is hereby
  granted, 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 disclaim 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
 *
 *  This file is the master dispatch header file for the board-specific LED driver, for boards containing user
 *  controllable LEDs.
 *
 *  User code should include this file, which will in turn include the correct LED driver header file for the
 *  currently selected board.
 *
 *  If the BOARD value is set to BOARD_USER, this will include the /Board/LEDs.h file in the user project
 *  directory.
 */
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/** \ingroup Group_BoardDrivers
 *  @defgroup Group_LEDs LEDs Driver - LUFA/Drivers/Board/LEDs.h
 *
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 *  \section Sec_Dependencies Module Source Dependencies
 *  The following files must be built with any user project that uses this module:
 *    - None
 *
 *  \section Module Description
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 *  Hardware LEDs driver. This provides an easy to use driver for the hardware LEDs present on many boards. It
 *  provides an interface to configure, test and change the status of all the board LEDs.
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 *
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 *  If the BOARD value is set to BOARD_USER, this will include the /Board/Dataflash.h file in the user project
 *  directory. Otherwise, it will include the appropriate built in board driver header file.
 *
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 *  \note To make code as compatible as possible, it is assumed that all boards carry a minimum of four LEDs. If
 *        a board contains less than four LEDs, the remaining LED masks are defined to 0 so as to have no effect.
 *        If other behaviour is desired, either alias the remaining LED masks to existing LED masks via the -D 
 *        switch in the project makefile, or alias them to nothing in the makefile to cause compilation errors when
 *        a non-existing LED is referenced in application code. Note that this means that it is possible to make
 *        compatible code for a board with no LEDs by making a board LED driver (see \ref Page_WritingBoardDrivers)
 *        which contains only stub functions and defines no LEDs.
 *
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 *  @{
 */

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#ifndef __LEDS_H__
#define __LEDS_H__

	/* Macros: */
	#if !defined(__DOXYGEN__)
		#define INCLUDE_FROM_LEDS_H
	#endif
	
	/* Includes: */
	#include "../../Common/Common.h"

	#if !defined(BOARD)
		#error BOARD must be set in makefile to a value specified in BoardTypes.h.
	#elif (BOARD == BOARD_USBKEY)
		#include "USBKEY/LEDs.h"
	#elif (BOARD == BOARD_STK525)
		#include "STK525/LEDs.h"
	#elif (BOARD == BOARD_STK526)
		#include "STK526/LEDs.h"
	#elif (BOARD == BOARD_RZUSBSTICK)
		#include "RZUSBSTICK/LEDs.h"
	#elif (BOARD == BOARD_ATAVRUSBRF01)
		#include "ATAVRUSBRF01/LEDs.h"
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	#elif (BOARD == BOARD_XPLAIN)
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		#include "XPLAIN/LEDs.h"
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	#elif (BOARD == BOARD_XPLAIN_REV1)
		#include "XPLAIN/LEDs.h"
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	#elif (BOARD == BOARD_BUMBLEB)
		#include "BUMBLEB/LEDs.h"
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	#elif (BOARD == BOARD_USER)
		#include "Board/LEDs.h"
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	#endif
	
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	#if !defined(LEDS_LED1)
		#define LEDS_LED1      0
	#endif

	#if !defined(LEDS_LED2)
		#define LEDS_LED2      0
	#endif

	#if !defined(LEDS_LED3)
		#define LEDS_LED3      0
	#endif

	#if !defined(LEDS_LED4)
		#define LEDS_LED4      0
	#endif
	
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	/* Pseudo-Functions for Doxygen: */
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	#if defined(__DOXYGEN__)
		/** Initializes the board LED driver so that the LEDs can be controlled. This sets the appropriate port
		 *  I/O pins as outputs, and sets the LEDs to default to off.
		 */
		static inline void LEDs_Init(void);

		/** Turns on the LEDs specified in the given LED mask.
		 *
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		 *  \param[in] LEDMask  Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
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		 */
		static inline void LEDs_TurnOnLEDs(const uint8_t LEDMask);

		/** Turns off the LEDs specified in the given LED mask.
		 *
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		 *  \param[in] LEDMask  Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
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		 */
		static inline void LEDs_TurnOffLEDs(const uint8_t LEDMask);

		/** Turns off all LEDs not specified in the given LED mask, and turns on all the LEDs in the given LED
		 *  mask.
		 *
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		 *  \param[in] LEDMask  Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
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		 */
		static inline void LEDs_SetAllLEDs(const uint8_t LEDMask);

		/** Turns off all LEDs in the LED mask that are not set in the active mask, and turns on all the LEDs
		 *  specified in both the LED and active masks.
		 *
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		 *  \param[in] LEDMask     Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
		 *  \param[in] ActiveMask  Mask of whether the LEDs in the LED mask should be turned on or off
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		 */
		static inline void LEDs_ChangeLEDs(const uint8_t LEDMask, const uint8_t ActiveMask);
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		/** Toggles all LEDs in the LED mask, leaving all others in their current states.
		 *
		 *  \param[in] LEDMask Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
		 */
		static inline void LEDs_ToggleLEDs(const uint8_t LEDMask);
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		/** Returns the status of all the board LEDs; set LED masks in the return value indicate that the
		 *  corresponding LED is on.
		 *
		 *  \return Mask of the board LEDs which are currently turned on
		 */
		static inline uint8_t LEDs_GetLEDs(void) ATTR_WARN_UNUSED_RESULT;
	#endif

#endif
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/** @} */