80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/*
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* Copyright (c) 2006, 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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*/
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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 "cc2420.h"
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#include "dev/leds.h"
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#include "isr_compat.h"
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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 "cc2420-arch-sfd.h"
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#endif
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/*---------------------------------------------------------------------------*/
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ISR(CC2420_IRQ, cc24240_fifop_interrupt)
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{
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
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/* check TA0IV - if 4 (CCR2 => FIFOP interrupt ) */
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if(P1IV == (2 * (1 + CC2420_FIFOP_PIN))) {
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if(cc2420_interrupt()) {
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LPM4_EXIT;
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}
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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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cc2420_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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CC2420_CSN_PORT(DIR) |= BV(CC2420_CSN_PIN);
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CC2420_VREG_PORT(DIR) |= BV(CC2420_VREG_PIN);
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CC2420_RESET_PORT(DIR) |= BV(CC2420_RESET_PIN);
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#if CONF_SFD_TIMESTAMPS
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cc2420_arch_sfd_init();
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#endif
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/* CC2420_SPI_DISABLE(); /\* Unselect radio. *\/ */
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}
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/*---------------------------------------------------------------------------*/
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