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191 lines
5.4 KiB
C
191 lines
5.4 KiB
C
/*
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* Copyright (c) 2014, Analog Devices, Inc.
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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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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \author Ian Martin <martini@redwirellc.com>
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*/
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#include <string.h> /* for memcpy(). */
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#include "radio.h"
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#include "ADF7023.h"
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#include "adf7023-contiki.h"
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#include "contiki.h" /* for LED definitions. */
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#define ADF7023_MAX_PACKET_SIZE 255
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static unsigned char tx_buf[ADF7023_MAX_PACKET_SIZE];
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static unsigned char rx_buf[ADF7023_MAX_PACKET_SIZE];
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/*---------------------------------------------------------------------------*/
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static radio_result_t
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get_value(radio_param_t param, radio_value_t *value)
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{
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return RADIO_RESULT_NOT_SUPPORTED;
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}
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/*---------------------------------------------------------------------------*/
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static radio_result_t
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set_value(radio_param_t param, radio_value_t value)
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{
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return RADIO_RESULT_NOT_SUPPORTED;
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}
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/*---------------------------------------------------------------------------*/
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static radio_result_t
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get_object(radio_param_t param, void *dest, size_t size)
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{
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return RADIO_RESULT_NOT_SUPPORTED;
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}
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/*---------------------------------------------------------------------------*/
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static radio_result_t
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set_object(radio_param_t param, const void *src, size_t size)
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{
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return RADIO_RESULT_NOT_SUPPORTED;
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}
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/*---------------------------------------------------------------------------*/
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const struct radio_driver adf7023_driver = {
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.init = adf7023_init,
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/** Prepare the radio with a packet to be sent. */
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.prepare = adf7023_prepare,
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/** Send the packet that has previously been prepared. */
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.transmit = adf7023_transmit,
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/** Prepare & transmit a packet. */
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.send = adf7023_send,
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/** Read a received packet into a buffer. */
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.read = adf7023_read,
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/** Perform a Clear-Channel Assessment (CCA) to find out if there is
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a packet in the air or not. */
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.channel_clear = adf7023_channel_clear,
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/** Check if the radio driver is currently receiving a packet */
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.receiving_packet = adf7023_receiving_packet,
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/** Check if the radio driver has just received a packet */
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.pending_packet = adf7023_pending_packet,
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/** Turn the radio on. */
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.on = adf7023_on,
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/** Turn the radio off. */
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.off = adf7023_off,
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.get_value = get_value,
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.set_value = set_value,
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.get_object = get_object,
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.set_object = set_object
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};
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int
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adf7023_init(void)
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{
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ADF7023_Init();
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return 1;
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}
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int
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adf7023_prepare(const void *payload, unsigned short payload_len)
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{
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/* Prepare the radio with a packet to be sent. */
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memcpy(tx_buf, payload, (payload_len <= sizeof(tx_buf)) ? payload_len : sizeof(tx_buf));
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return 0;
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}
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int
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adf7023_transmit(unsigned short transmit_len)
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{
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/* Send the packet that has previously been prepared. */
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RADIO_TX_LED = 1;
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ADF7023_TransmitPacket(tx_buf, transmit_len);
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RADIO_TX_LED = 0;
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/* TODO: Error conditions (RADIO_TX_ERR, RADIO_TX_COLLISION, RADIO_TX_NOACK)? */
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return RADIO_TX_OK;
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}
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int
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adf7023_send(const void *payload, unsigned short payload_len)
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{
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/* Prepare & transmit a packet. */
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RADIO_TX_LED = 1;
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ADF7023_TransmitPacket((void *)payload, payload_len);
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RADIO_TX_LED = 0;
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/* TODO: Error conditions (RADIO_TX_ERR, RADIO_TX_COLLISION, RADIO_TX_NOACK)? */
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return RADIO_TX_OK;
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}
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int
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adf7023_read(void *buf, unsigned short buf_len)
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{
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unsigned char num_bytes;
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/* Read a received packet into a buffer. */
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RADIO_RX_LED = 1;
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ADF7023_ReceivePacket(rx_buf, &num_bytes);
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RADIO_RX_LED = 0;
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memcpy(buf, rx_buf, (num_bytes <= buf_len) ? num_bytes : buf_len);
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return num_bytes;
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}
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int
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adf7023_channel_clear(void)
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{
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/* Perform a Clear-Channel Assessment (CCA) to find out if there is a packet in the air or not. */
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return 1;
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}
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int
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adf7023_receiving_packet(void)
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{
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/* Check if the radio driver is currently receiving a packet. */
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return 0;
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}
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int
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adf7023_pending_packet(void)
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{
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/* Check if the radio driver has just received a packet. */
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return ADF7023_ReceivePacketAvailable();
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}
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int
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adf7023_on(void)
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{
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/* Turn the radio on. */
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return 1;
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}
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int
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adf7023_off(void)
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{
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/* Turn the radio off. */
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return 0;
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}
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