contiki/platform/micaz/dev/cc2420-arch.c

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/*
* Copyright (c) 2009, University of Colombo School of Computing
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* @(#)$$
*/
#include <avr/io.h>
#include "contiki.h"
#include "contiki-net.h"
#include "dev/spi.h"
#include "cc2420.h"
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#include "dev/leds.h"
void
cc2420_arch_init(void)
{
SFIOR |= BV(PUD); /* Beware, disable all pull-ups. */
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spi_init();
DDRA |= BV(CC2420_RESET_PIN);
DDRA |= BV(CC2420_VREG_PIN);
DDRB &= ~BV(CC2420_FIFO_PIN);
DDRD &= ~BV(CC2420_CCA_PIN);
DDRD &= ~BV(CC2420_SFD_PIN);
DDRE &= ~BV(CC2420_FIFOP_PIN);
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PORTA |= BV(CC2420_RESET_PIN);
PORTB |= BV(CC2420_CSN_PIN);
CC2420_SPI_DISABLE(); /* Unselect radio. */
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}
ISR(CC2420_IRQ_VECTOR)
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{
/* TODO : wakeup from sleep mode */
cc2420_interrupt();
}