contiki/platform/mbxxx/dev/leds-arch.c

110 lines
3.6 KiB
C

/*
* Copyright (c) 2010, STMicroelectronics.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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.
*
* This file is part of the Contiki OS
*
*/
/*---------------------------------------------------------------------------*/
/**
* \file
* Leds.
* \author
* Salvatore Pitrulli <salvopitru@users.sourceforge.net>
*/
/*---------------------------------------------------------------------------*/
#include PLATFORM_HEADER
#include BOARD_HEADER
#include "hal/micro/led.h"
#include "hal/micro/micro-common.h"
#include "hal/micro/cortexm3/micro-common.h"
#include "contiki-conf.h"
#include "dev/leds.h"
/**
* @brief Read single GPIO bit from PxOUT
*
* @param io The io pin to use, can be specified with the convenience macros
* PORTA_PIN(), PORTB_PIN(), PORTC_PIN()
* @return Bit value: 1 if bit is set, 0 otherwise.
*
*/
int8u halGpioGetPxOUT(int32u gpio)
{
if(gpio/8 < 3) {
return (*((volatile int32u *)(GPIO_PxOUT_BASE+(GPIO_Px_OFFSET*(gpio/8)))) & BIT(gpio&7) ) == 0 ? 0 : 1 ;
}
return 0;
}
/**
* @brief Read single GPIO bit from PxIN
*
* @param io The io pin to use, can be specified with the convenience macros
* PORTA_PIN(), PORTB_PIN(), PORTC_PIN()
* @return Bit value: 1 if bit is set, 0 otherwise.
*
*/
int8u halGpioGetPxIN(int32u gpio)
{
if(gpio/8 < 3) {
return (*((volatile int32u *)(GPIO_PxIN_BASE+(GPIO_Px_OFFSET*(gpio/8)))) & BIT(gpio&7) ) == 0 ? 0 : 1 ;
}
return 0;
}
/*---------------------------------------------------------------------------*/
void
leds_arch_init(void)
{
halInitLed();
}
/*---------------------------------------------------------------------------*/
unsigned char
leds_arch_get(void)
{
return (halGpioGetPxOUT(LEDS_CONF_GREEN) ? 0 : LEDS_GREEN)
| (halGpioGetPxOUT(LEDS_CONF_YELLOW) ? 0 : LEDS_YELLOW)
| (halGpioGetPxOUT(LEDS_CONF_RED) ? 0 : LEDS_RED);
}
/*---------------------------------------------------------------------------*/
void
leds_arch_set(unsigned char leds)
{
halGpioSet(LEDS_CONF_GREEN, !(leds & LEDS_GREEN));
halGpioSet(LEDS_CONF_YELLOW, !(leds & LEDS_YELLOW));
halGpioSet(LEDS_CONF_RED, !(leds & LEDS_RED));
}
/*---------------------------------------------------------------------------*/