From 98f9d442b44dbe2e3e4b3c8296be7e78d5d05450 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 24 Jul 2011 09:39:28 +0200 Subject: initial import of the usb ccid example for the sam7s --- at91lib/utility/led.h | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 at91lib/utility/led.h (limited to 'at91lib/utility/led.h') diff --git a/at91lib/utility/led.h b/at91lib/utility/led.h new file mode 100644 index 0000000..3f4878f --- /dev/null +++ b/at91lib/utility/led.h @@ -0,0 +1,70 @@ +/* ---------------------------------------------------------------------------- + * 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. + * ---------------------------------------------------------------------------- + */ + +//------------------------------------------------------------------------------ +/// \unit +/// +/// !Purpose +/// +/// Small set of functions for simple and portable LED usage. +/// +/// !Usage +/// +/// -# Configure one or more LEDs using LED_Configure and +/// LED_ConfigureAll. +/// -# Set, clear and toggle LEDs using LED_Set, LED_Clear and +/// LED_Toggle. +/// +/// 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, 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 + +//------------------------------------------------------------------------------ +// Global 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 + -- cgit v1.2.3