LUFA/Drivers/Board/LEDs.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  This file is the master dispatch header file for the board-specific LED driver, for boards containing user
  34  *  controllable LEDs.
  35  *
  36  *  User code should include this file, which will in turn include the correct LED driver header file for the
  37  *  currently selected board.
  38  *
  39  *  If the BOARD value is set to BOARD_USER, this will include the /Board/LEDs.h file in the user project
  40  *  directory.
  41  */
  42
  43 /** \ingroup Group_BoardDrivers
  44  *  @defgroup Group_LEDs LEDs Driver - LUFA/Drivers/Board/LEDs.h
  45  *
  46  *  \section Sec_Dependencies Module Source Dependencies
  47  *  The following files must be built with any user project that uses this module:
  48  *    - None
  49  *
  50  *  \section Module Description
  51  *  Hardware LEDs driver. This provides an easy to use driver for the hardware LEDs present on many boards. It
  52  *  provides an interface to configure, test and change the status of all the board LEDs.
  53  *
  54  *  If the BOARD value is set to BOARD_USER, this will include the /Board/Dataflash.h file in the user project
  55  *  directory. Otherwise, it will include the appropriate built in board driver header file.
  56  *
  57  *  \note To make code as compatible as possible, it is assumed that all boards carry a minimum of four LEDs. If
  58  *        a board contains less than four LEDs, the remaining LED masks are defined to 0 so as to have no effect.
  59  *        If other behaviour is desired, either alias the remaining LED masks to existing LED masks via the -D
  60  *        switch in the project makefile, or alias them to nothing in the makefile to cause compilation errors when
  61  *        a non-existing LED is referenced in application code. Note that this means that it is possible to make
  62  *        compatible code for a board with no LEDs by making a board LED driver (see \ref Page_WritingBoardDrivers)
  63  *        which contains only stub functions and defines no LEDs.
  64  *
  65  *  @{
  66  */
  67
  68 #ifndef __LEDS_H__
  69 #define __LEDS_H__
  70
  71         /* Macros: */
  72         #if !defined(__DOXYGEN__)
  73                 #define INCLUDE_FROM_LEDS_H
  74         #endif
  75
  76         /* Includes: */
  77         #include "../../Common/Common.h"
  78
  79         #if !defined(BOARD)
  80                 #error BOARD must be set in makefile to a value specified in BoardTypes.h.
  81         #elif (BOARD == BOARD_USBKEY)
  82                 #include "USBKEY/LEDs.h"
  83         #elif (BOARD == BOARD_STK525)
  84                 #include "STK525/LEDs.h"
  85         #elif (BOARD == BOARD_STK526)
  86                 #include "STK526/LEDs.h"
  87         #elif (BOARD == BOARD_RZUSBSTICK)
  88                 #include "RZUSBSTICK/LEDs.h"
  89         #elif (BOARD == BOARD_ATAVRUSBRF01)
  90                 #include "ATAVRUSBRF01/LEDs.h"
  91         #elif (BOARD == BOARD_USER)
  92                 #include "Board/LEDs.h"
  93         #endif
  94
  95         #if !defined(LEDS_LED1)
  96                 #define LEDS_LED1      0
  97         #endif
  98
  99         #if !defined(LEDS_LED2)
 100                 #define LEDS_LED2      0
 101         #endif
 102
 103         #if !defined(LEDS_LED3)
 104                 #define LEDS_LED3      0
 105         #endif
 106
 107         #if !defined(LEDS_LED4)
 108                 #define LEDS_LED4      0
 109         #endif
 110
 111         /* Pseudo-Functions for Doxygen: */
 112         #if defined(__DOXYGEN__)
 113                 /** Initializes the board LED driver so that the LEDs can be controlled. This sets the appropriate port
 114                  *  I/O pins as outputs, and sets the LEDs to default to off.
 115                  */
 116                 static inline void LEDs_Init(void);
 117
 118                 /** Turns on the LEDs specified in the given LED mask.
 119                  *
 120                  *  \param[in] LEDMask  Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
 121                  */
 122                 static inline void LEDs_TurnOnLEDs(const uint8_t LEDMask);
 123
 124                 /** Turns off the LEDs specified in the given LED mask.
 125                  *
 126                  *  \param[in] LEDMask  Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
 127                  */
 128                 static inline void LEDs_TurnOffLEDs(const uint8_t LEDMask);
 129
 130                 /** Turns off all LEDs not specified in the given LED mask, and turns on all the LEDs in the given LED
 131                  *  mask.
 132                  *
 133                  *  \param[in] LEDMask  Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
 134                  */
 135                 static inline void LEDs_SetAllLEDs(const uint8_t LEDMask);
 136
 137                 /** Turns off all LEDs in the LED mask that are not set in the active mask, and turns on all the LEDs
 138                  *  specified in both the LED and active masks.
 139                  *
 140                  *  \param[in] LEDMask     Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
 141                  *  \param[in] ActiveMask  Mask of whether the LEDs in the LED mask should be turned on or off
 142                  */
 143                 static inline void LEDs_ChangeLEDs(const uint8_t LEDMask, const uint8_t ActiveMask);
 144
 145                 /** Toggles all LEDs in the LED mask, leaving all others in their current states.
 146                  *
 147                  *  \param[in] LEDMask Mask of the board LEDs to manipulate (see board-specific LEDs.h driver file)
 148                  */
 149                 static inline void LEDs_ToggleLEDs(const uint8_t LEDMask);
 150
 151                 /** Returns the status of all the board LEDs; set LED masks in the return value indicate that the
 152                  *  corresponding LED is on.
 153                  *
 154                  *  \return Mask of the board LEDs which are currently turned on
 155                  */
 156                 static inline uint8_t LEDs_GetLEDs(void) ATTR_WARN_UNUSED_RESULT;
 157         #endif
 158
 159 #endif
 160
 161 /** @} */