Contiki-NG
Loading...
Searching...
No Matches
ieee-addr.c
Go to the documentation of this file.
1/*
2 * Copyright (c) 2014, Texas Instruments Incorporated - http://www.ti.com/
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
29 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31/*---------------------------------------------------------------------------*/
32/**
33 * \addtogroup cc26xx-ieee-addr
34 * @{
35 *
36 * \file
37 * Driver for the CC13xx/CC26xx IEEE addresses
38 */
39/*---------------------------------------------------------------------------*/
40#include "contiki.h"
41#include "net/linkaddr.h"
42#include "ieee-addr.h"
43#include "ieee-addr-id.h"
44
45#include <stdint.h>
46#include <string.h>
47/*---------------------------------------------------------------------------*/
48void
49ieee_addr_cpy_to(uint8_t *dst, uint8_t len)
50{
52 uint8_t ieee_addr_hc[8] = IEEE_ADDR_CONF_ADDRESS;
53
54 memcpy(dst, &ieee_addr_hc[8 - len], len);
55 } else {
56 int i;
57
58 /* Reading from primary location... */
59 uint8_t *location = (uint8_t *)IEEE_ADDR_LOCATION_PRIMARY;
60
61 /*
62 * ...unless we can find a byte != 0xFF in secondary
63 *
64 * Intentionally checking all 8 bytes here instead of len, because we
65 * are checking validity of the entire IEEE address irrespective of the
66 * actual number of bytes the caller wants to copy over.
67 */
68 for(i = 0; i < 8; i++) {
69 if(((uint8_t *)IEEE_ADDR_LOCATION_SECONDARY)[i] != 0xFF) {
70 /* A byte in the secondary location is not 0xFF. Use the secondary */
71 location = (uint8_t *)IEEE_ADDR_LOCATION_SECONDARY;
72 break;
73 }
74 }
75
76 /*
77 * We have chosen what address to read the IEEE address from. Do so,
78 * inverting byte order
79 */
80 for(i = 0; i < len; i++) {
81 dst[i] = location[len - 1 - i];
82 }
83 }
84
85#if IEEE_ADDR_NODE_ID
86 dst[len - 1] = IEEE_ADDR_NODE_ID & 0xFF;
87 dst[len - 2] = IEEE_ADDR_NODE_ID >> 8;
88#endif
89}
90/*---------------------------------------------------------------------------*/
91/** @} */
Header file with register and macro declarations for the cc26xx IEEE address driver.
#define IEEE_ADDR_LOCATION_SECONDARY
Secondary IEEE address location.
Definition ieee-addr.h:71
#define IEEE_ADDR_LOCATION_PRIMARY
Primary IEEE address location.
Definition ieee-addr.h:66
void ieee_addr_cpy_to(uint8_t *dst, uint8_t len)
Definition ieee-addr.c:47
#define IEEE_ADDR_CONF_ADDRESS
The hardcoded IEEE address to be used when IEEE_ADDR_CONF_HARDCODED is defined as 1.
#define IEEE_ADDR_CONF_HARDCODED
Location of the IEEE address 0 => Read from InfoPage, 1 => Use a hardcoded address,...
Header file for the link-layer address representation.