86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
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/*
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* Copyright (c) 2011, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "contiki.h"
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#include "contiki-net.h"
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#include "dev/spi.h"
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#include "dev/cc2520.h"
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#ifdef CC2520_CONF_SFD_TIMESTAMPS
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#define CONF_SFD_TIMESTAMPS CC2520_CONF_SFD_TIMESTAMPS
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#endif /* CC2520_CONF_SFD_TIMESTAMPS */
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#ifndef CONF_SFD_TIMESTAMPS
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#define CONF_SFD_TIMESTAMPS 0
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#endif /* CONF_SFD_TIMESTAMPS */
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#ifdef CONF_SFD_TIMESTAMPS
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#include "cc2520-arch-sfd.h"
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#endif
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/*---------------------------------------------------------------------------*/
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#ifdef __IAR_SYSTEMS_ICC__
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#pragma vector=CC2520_IRQ_VECTOR
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__interrupt void
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#else
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interrupt(CC2520_IRQ_VECTOR)
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#endif
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cc2520_port1_interrupt(void)
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{
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
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if(cc2520_interrupt()) {
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LPM4_EXIT;
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}
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ENERGEST_OFF(ENERGEST_TYPE_IRQ);
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}
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/*---------------------------------------------------------------------------*/
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void
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cc2520_arch_init(void)
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{
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spi_init();
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/* all input by default, set these as output */
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CC2520_CSN_PORT(DIR) |= BV(CC2520_CSN_PIN);
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CC2520_VREG_PORT(DIR) |= BV(CC2520_VREG_PIN);
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CC2520_RESET_PORT(DIR) |= BV(CC2520_RESET_PIN);
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P1DIR &= ~(BV(CC2520_FIFOP_PIN) | BV(CC2520_FIFO_PIN) | BV(CC2520_CCA_PIN));
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P2DIR &= ~(BV(CC2520_SFD_PIN));
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#if CONF_SFD_TIMESTAMPS
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cc2520_arch_sfd_init();
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#endif
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CC2520_SPI_DISABLE(); /* Unselect radio. */
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}
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/*---------------------------------------------------------------------------*/
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