a5046e83c7
This is a general cleanup of things like code style issues and code structure of the STM32w port to make it more like the rest of Contiki is structured.
187 lines
5 KiB
C
187 lines
5 KiB
C
/**
|
|
* \addtogroup mb851-platform
|
|
*
|
|
* @{
|
|
*/
|
|
/*
|
|
* 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.
|
|
*
|
|
*/
|
|
/**
|
|
* \file
|
|
* Button sensor.
|
|
* \author
|
|
* Salvatore Pitrulli <salvopitru@users.sourceforge.net>
|
|
*/
|
|
|
|
#include "dev/button-sensor.h"
|
|
#include "hal/micro/micro-common.h"
|
|
#include "hal/micro/cortexm3/micro-common.h"
|
|
|
|
#include BOARD_HEADER
|
|
#define DEBOUNCE 1
|
|
|
|
/**
|
|
* \brief Port and pin for BUTTON0.
|
|
*/
|
|
#undef BUTTON_S1
|
|
#define BUTTON_S1 PORTA_PIN(7)
|
|
#define BUTTON_S1_INPUT_GPIO BUTTON_INPUT_GPIO(PORTA)
|
|
#define BUTTON_S1_GPIO_PIN 7
|
|
#define BUTTON_S1_OUTPUT_GPIO GPIO_PAOUT
|
|
|
|
/**
|
|
* \brief Point the proper IRQ at the desired pin for BUTTON0.
|
|
*/
|
|
#define BUTTON_S1_SEL() do { GPIO_IRQCSEL = BUTTON_S1; } while(0)
|
|
/**
|
|
* \brief The interrupt service routine for BUTTON_S1.
|
|
*/
|
|
#define BUTTON_S1_ISR halIrqCIsr
|
|
/**
|
|
* \brief The interrupt configuration register for BUTTON_S1.
|
|
*/
|
|
#define BUTTON_S1_INTCFG GPIO_INTCFGC
|
|
/**
|
|
* \brief The interrupt bit for BUTTON_S1.
|
|
*/
|
|
#define BUTTON_S1_INT_EN_BIT INT_IRQC
|
|
/**
|
|
* \brief The interrupt bit for BUTTON_S1.
|
|
*/
|
|
#define BUTTON_S1_FLAG_BIT INT_IRQCFLAG
|
|
/**
|
|
* \brief The missed interrupt bit for BUTTON_S1.
|
|
*/
|
|
#define BUTTON_S1_MISS_BIT INT_MISSIRQC
|
|
|
|
#if DEBOUNCE
|
|
static struct timer debouncetimer;
|
|
#endif
|
|
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
init(void)
|
|
{
|
|
#if DEBOUNCE
|
|
timer_set(&debouncetimer, 0);
|
|
#endif
|
|
|
|
/* Configure GPIO */
|
|
/* Input, pulled up or down (selected by GPIO_PxOUT: 0 = pull-down). */
|
|
halGpioConfig(BUTTON_S1, GPIOCFG_IN_PUD);
|
|
BUTTON_S1_OUTPUT_GPIO |= GPIOOUT_PULLUP << BUTTON_S1_GPIO_PIN;
|
|
BUTTON_S1_SEL();
|
|
BUTTON_S1_INTCFG = 0x40; /* Falling edge triggered. */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
activate(void)
|
|
{
|
|
INT_CFGSET = BUTTON_S1_INT_EN_BIT;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
deactivate(void)
|
|
{
|
|
INT_CFGCLR = BUTTON_S1_INT_EN_BIT;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
active(void)
|
|
{
|
|
return (INT_CFGSET & BUTTON_S1_INT_EN_BIT) ? TRUE : FALSE;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
value(int type)
|
|
{
|
|
#if DEBOUNCE
|
|
return (BUTTON_S1_INPUT_GPIO & (1 << BUTTON_S1_GPIO_PIN)) ||
|
|
!timer_expired(&debouncetimer);
|
|
#else
|
|
return BUTTON_S1_INPUT_GPIO & (1 << BUTTON_S1_GPIO_PIN);
|
|
#endif
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
configure(int type, int value)
|
|
{
|
|
switch (type) {
|
|
case SENSORS_HW_INIT:
|
|
init();
|
|
return 1;
|
|
case SENSORS_ACTIVE:
|
|
if(value) {
|
|
activate();
|
|
} else {
|
|
deactivate();
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
status(int type)
|
|
{
|
|
switch (type) {
|
|
case SENSORS_READY:
|
|
return active();
|
|
}
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
BUTTON_S1_ISR(void)
|
|
{
|
|
ENERGEST_ON(ENERGEST_TYPE_IRQ);
|
|
/* sensors_handle_irq(IRQ_BUTTON); */
|
|
|
|
if(INT_GPIOFLAG & BUTTON_S1_FLAG_BIT) {
|
|
#if DEBOUNCE
|
|
if(timer_expired(&debouncetimer)) {
|
|
timer_set(&debouncetimer, CLOCK_SECOND / 5);
|
|
sensors_changed(&button_sensor);
|
|
}
|
|
#else
|
|
sensors_changed(&button_sensor);
|
|
#endif
|
|
}
|
|
|
|
INT_GPIOFLAG = BUTTON_S1_FLAG_BIT;
|
|
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
SENSORS_SENSOR(button_sensor, BUTTON_SENSOR, value, configure, status);
|
|
/** @} */
|