111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
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/*
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* Copyright (c) 2010, STMicroelectronics.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki OS
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*
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* $Id: leds-arch.c,v 1.1 2010/10/25 09:03:38 salvopitru Exp $
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \file
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* Leds.
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* \author
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* Salvatore Pitrulli <salvopitru@users.sourceforge.net>
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*/
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/*---------------------------------------------------------------------------*/
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#include PLATFORM_HEADER
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#include BOARD_HEADER
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#include "hal/micro/led.h"
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#include "hal/micro/micro-common.h"
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#include "hal/micro/cortexm3/micro-common.h"
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#include "contiki-conf.h"
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#include "dev/leds.h"
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/**
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* @brief Read single GPIO bit from PxOUT
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*
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* @param io The io pin to use, can be specified with the convenience macros
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* PORTA_PIN(), PORTB_PIN(), PORTC_PIN()
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* @return Bit value: 1 if bit is set, 0 otherwise.
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*
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*/
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int8u halGpioGetPxOUT(int32u gpio)
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{
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if(gpio/8 < 3) {
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return (*((volatile int32u *)(GPIO_PxOUT_BASE+(GPIO_Px_OFFSET*(gpio/8)))) & BIT(gpio&7) ) == 0 ? 0 : 1 ;
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}
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return 0;
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}
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/**
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* @brief Read single GPIO bit from PxIN
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*
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* @param io The io pin to use, can be specified with the convenience macros
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* PORTA_PIN(), PORTB_PIN(), PORTC_PIN()
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* @return Bit value: 1 if bit is set, 0 otherwise.
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*
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*/
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int8u halGpioGetPxIN(int32u gpio)
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{
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if(gpio/8 < 3) {
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return (*((volatile int32u *)(GPIO_PxIN_BASE+(GPIO_Px_OFFSET*(gpio/8)))) & BIT(gpio&7) ) == 0 ? 0 : 1 ;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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leds_arch_init(void)
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{
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halInitLed();
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}
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/*---------------------------------------------------------------------------*/
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unsigned char
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leds_arch_get(void)
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{
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return (halGpioGetPxOUT(LEDS_CONF_GREEN) ? 0 : LEDS_GREEN)
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| (halGpioGetPxOUT(LEDS_CONF_YELLOW) ? 0 : LEDS_YELLOW)
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| (halGpioGetPxOUT(LEDS_CONF_RED) ? 0 : LEDS_RED);
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}
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/*---------------------------------------------------------------------------*/
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void
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leds_arch_set(unsigned char leds)
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{
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halGpioSet(LEDS_CONF_GREEN, !(leds & LEDS_GREEN));
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halGpioSet(LEDS_CONF_YELLOW, !(leds & LEDS_YELLOW));
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halGpioSet(LEDS_CONF_RED, !(leds & LEDS_RED));
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}
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/*---------------------------------------------------------------------------*/
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