2016-05-08 16:49:54 +02:00
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/*
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* Copyright (c) 2011, Swedish Institute of Computer Science
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* 2016, Dr. Ralf Schlatterbeck Open Source Consulting
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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 "icosoc.h"
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#include "cc2520-arch.h"
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#include "dev/cc2520/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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void icosoc_cc2520_fifop_irq (void)
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{
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
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2016-05-12 13:51:20 +02:00
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/* See Errata 1.2.2 */
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if (!CC2520_FIFOP_IS_1) {
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return;
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}
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if (!CC2520_FIFOP_IS_1) {
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return;
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}
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2016-05-08 16:49:54 +02:00
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cc2520_interrupt();
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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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// All inputs except for RESET pin which is an output
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icosoc_cc2520_io_dir (BV(CC2520_RESET_SHIFT));
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// Prescaler set to F_CPU / 4MHz will result in <= 4MHz
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// rate, chip should perform up to 8MHz)
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icosoc_cc2520_spi_prescale (F_CPU / 4000000);
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// SPI mode cpol, cpha
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icosoc_cc2520_spi_mode (0, 0);
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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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