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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
/*
Title: LED
About: Purpose
Small set of functions for simple and portable LED usage.
About: Usage
1 - Configure one or more LEDs using <LED_Configure> and
<LED_ConfigureAll>.
2 - Set, clear and toggle LEDs using <LED_Set>, <LED_Clear> and
<LED_Toggle>.
3 - Get the current status of a LED using <LED_Get>.
LEDs are numbered starting from 0; the number of LEDs depend on the
board being used. All the functions defined here will compile properly
regardless of whether the LED is defined or not; they will simply
return 0 when a LED which does not exist is given as an argument.
Also, these functions take into account how each LED is connected on to
board; thus, <LED_Set> might change the level on the corresponding pin
to 0 or 1, but it will always light the LED on; same thing for the other
methods.
*/
#ifndef LED_H
#define LED_H
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern unsigned char LED_Configure(unsigned int led);
extern unsigned char LED_Set(unsigned int led);
extern unsigned char LED_Clear(unsigned int led);
extern unsigned char LED_Toggle(unsigned int led);
#endif //#ifndef LED_H
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