nes-proj/cpu/stm32w108/leds-arch.c
Salvatore Pitrulli af8e58e063 Set LED pins to output when MB851 is in sleep mode.
This reduces power consumption.
2011-04-13 18:14:12 +02:00

79 lines
3.0 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
*
* $Id: leds-arch.c,v 1.1 2010/10/25 09:03:38 salvopitru Exp $
*/
/*---------------------------------------------------------------------------*/
/**
* \file
* Leds.
* \author
* Salvatore Pitrulli <salvopitru@users.sourceforge.net>
*/
/*---------------------------------------------------------------------------*/
#include PLATFORM_HEADER
#include BOARD_HEADER
#include "contiki-conf.h"
#include "dev/leds.h"
#include "hal/micro/micro-common.h"
#include "hal/micro/cortexm3/micro-common.h"
#define LEDS_PORT *((volatile int32u *)(GPIO_PxOUT_BASE+(GPIO_Px_OFFSET*(LEDS_CONF_PORT/8))))
/*---------------------------------------------------------------------------*/
void
leds_arch_init(void)
{
halGpioConfig(PORTx_PIN(LEDS_CONF_PORT,LEDS_CONF_RED_PIN),GPIOCFG_OUT);
halGpioConfig(PORTx_PIN(LEDS_CONF_PORT,LEDS_CONF_GREEN_PIN),GPIOCFG_OUT);
LEDS_PORT |= (LEDS_CONF_RED | LEDS_CONF_GREEN);
}
/*---------------------------------------------------------------------------*/
unsigned char
leds_arch_get(void)
{
return ((LEDS_PORT & LEDS_CONF_RED) ? 0 : LEDS_RED)
| ((LEDS_PORT & LEDS_CONF_GREEN) ? 0 : LEDS_GREEN);
}
/*---------------------------------------------------------------------------*/
void
leds_arch_set(unsigned char leds)
{
LEDS_PORT = (LEDS_PORT & ~(LEDS_CONF_RED|LEDS_CONF_GREEN))
| ((leds & LEDS_RED) ? 0 : LEDS_CONF_RED)
| ((leds & LEDS_GREEN) ? 0 : LEDS_CONF_GREEN);
}
/*---------------------------------------------------------------------------*/