91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2013, Texas Instruments Incorporated - http://www.ti.com/
|
|
* 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 copyright holder 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 COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT HOLDER 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.
|
|
*/
|
|
/**
|
|
* \addtogroup cc2538-ieee-addr
|
|
* @{
|
|
*
|
|
* \file
|
|
* Driver for the cc2538 IEEE addresses
|
|
*/
|
|
#include "contiki-conf.h"
|
|
#include "net/linkaddr.h"
|
|
#include "ieee-addr.h"
|
|
|
|
#include <stdint.h>
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
ieee_addr_cpy_to(uint8_t *dst, uint8_t len)
|
|
{
|
|
if(IEEE_ADDR_CONF_HARDCODED) {
|
|
uint8_t ieee_addr_hc[8] = IEEE_ADDR_CONF_ADDRESS;
|
|
|
|
memcpy(dst, &ieee_addr_hc[8 - len], len);
|
|
} else {
|
|
/*
|
|
* By default, we assume that the IEEE address is stored on flash using
|
|
* little-endian byte order.
|
|
*
|
|
* However, some SoCs ship with a different byte order, whereby the first
|
|
* four bytes are flipped with the four last ones.
|
|
*
|
|
* Using this address as an example: 00 12 4B 00 01 02 03 04
|
|
* We expect it stored as: 04 03 02 01 00 4B 12 00
|
|
* But it is also possible to encounter: 00 4B 12 00 04 03 02 01
|
|
*
|
|
* Thus: read locations [3, 2, 1] and if we encounter the TI OUI, flip the
|
|
* order of the two 4-byte sequences. Each of the 4-byte sequences is still
|
|
* little-endian.
|
|
*/
|
|
int i;
|
|
uint8_t oui_ti[3] = IEEE_ADDR_OUI_TI;
|
|
if(((uint8_t *)IEEE_ADDR_LOCATION)[3] == oui_ti[0]
|
|
&& ((uint8_t *)IEEE_ADDR_LOCATION)[2] == oui_ti[1]
|
|
&& ((uint8_t *)IEEE_ADDR_LOCATION)[1] == oui_ti[2]) {
|
|
for(i = 0; i < len / 2; i++) {
|
|
dst[i] = ((uint8_t *)IEEE_ADDR_LOCATION)[len / 2 - 1 - i];
|
|
}
|
|
for(i = 0; i < len / 2; i++) {
|
|
dst[i + len / 2] = ((uint8_t *)IEEE_ADDR_LOCATION)[len - 1 - i];
|
|
}
|
|
} else {
|
|
for(i = 0; i < len; i++) {
|
|
dst[i] = ((uint8_t *)IEEE_ADDR_LOCATION)[len - 1 - i];
|
|
}
|
|
}
|
|
}
|
|
|
|
#if IEEE_ADDR_NODE_ID
|
|
dst[len - 1] = IEEE_ADDR_NODE_ID & 0xFF;
|
|
dst[len - 2] = IEEE_ADDR_NODE_ID >> 8;
|
|
#endif
|
|
}
|
|
|
|
/** @} */
|