osd-contiki/examples/osd/pingtheplug/pcintkey.c

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/*
* Copyright (c) 2010 harald pichler
* 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 following disclaimer.
* * 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.
* * Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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
*
* \brief
* This file provides Raven KEY support.
*
* \author
* Harald Pichler harald@the-develop.net
*
*/
#include <avr/interrupt.h>
#include "dev/led.h"
#include "pcintkey.h"
/*---------------------------------------------------------------------------*/
ISR(PCINT0_vect)
{
// if(BUTTON_CHECK_IRQ()) {
// if(timer_expired(&debouncetimer)) {
// led1_on();
// timer_set(&debouncetimer, CLOCK_SECOND / 4);
// sensors_changed(&button_sensor);
// led1_off();
// }
// }
}
/* Compatibility of old vs new definitions in io.h */
#ifndef DDE0
#define DDE0 DDRE0
#define DDE1 DDRE1
#define DDE2 DDRE2
#define DDE3 DDRE3
#define DDE4 DDRE4
#define DDE5 DDRE5
#define DDE6 DDRE6
#define DDE7 DDRE7
#endif
#ifndef DDF0
#define DDF0 DDRF0
#define DDF1 DDRF1
#define DDF2 DDRF2
#define DDF3 DDRF3
#define DDF4 DDRF4
#define DDF5 DDRF5
#define DDF6 DDRF6
#define DDF7 DDRF7
#endif
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/**
* \brief This will intialize the KEY for button readings.
*/
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void
key_init(void)
{
// Pairing Button
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// PORTB |= (1<<PORTE0); // Set port PORTE pint 0 with pullup resistor
// DDRB |= (1<<DDE0); // Set pin as input
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// ext1
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PORTF |= (1<<PORTF6); // Set port PORTF pint 6 with pullup resistor
DDRF |= (1<<DDF6); // Set pin as input
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// ext2
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PORTF |= (1<<PORTF7); // Set port PORTF pint 7 with pullup resistor
DDRF |= (1<<DDF7); // Set pin as input
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// Interrupt
//PCICR |= _BV(PCIE0);
//PCMSK0 |= _BV(PCINT4) | _BV(PCINT5) | _BV(PCINT6);
}
/*---------------------------------------------------------------------------*/
/**
* \brief This will poll run key_task() to determine if a button has been pressed.
*
* \retval True if button is pressed
* \retval False if button is not pressed
*/
uint8_t
is_button_ext4(void)
{
/* Return true if button has been pressed. */
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if ( PINE & (1<<PINE0) ) {
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return 0;
}
else{
return 1;
}
}
uint8_t
is_button_ext5(void)
{
/* Return true if button has been pressed. */
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if ( PINF & (1<<PINF6) ) {
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return 0;
}
else{
return 1;
}
}
uint8_t
is_button_ext6(void)
{
/* Return true if button has been pressed. */
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if ( PINF & (1<<PINF7) ) {
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return 0;
}
else{
return 1;
}
}