Contiki-NG
linkaddr-arch.c
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1 /*
2  * Copyright (C) 2020 Yago Fontoura do Rosario <yago.rosario@hotmail.com.br>
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  * 3. Neither the name of the copyright holder nor the names of its
14  * contributors may be used to endorse or promote products derived
15  * from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
20  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
21  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28  * OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /**
32  * \addtogroup nrf
33  * @{
34  *
35  * \addtogroup nrf-sys System drivers
36  * @{
37  *
38  * \addtogroup nrf-linkaddr Link Address driver
39  * @{
40  *
41  * \file
42  * Link address implementation for the nRF.
43  * \author
44  * Yago Fontoura do Rosario <yago.rosario@hotmail.com.br>
45  */
46 #include "contiki.h"
47 
48 #include "linkaddr.h"
49 
50 #include "nrf.h"
51 
52 #include "linkaddr-arch.h"
53 
54 #include <string.h>
55 #include <stdint.h>
56 
57 /*---------------------------------------------------------------------------*/
58 /* Nordic semi OUI */
59 #define NORDIC_SEMI_VENDOR_OUI 0xF4CE36
60 /*---------------------------------------------------------------------------*/
61 void
63 {
64  uint8_t device_address[8];
65  uint32_t device_address_low;
66 
67  /*
68  * Populate the link address' 3 MSBs using Nordic's OUI.
69  * For the remaining 5 bytes just use any 40 of the 48 FICR->DEVICEADDR
70  * Those are random, so endianness is irrelevant.
71  */
72  device_address[0] = (NORDIC_SEMI_VENDOR_OUI) >> 16 & 0xFF;
73  device_address[1] = (NORDIC_SEMI_VENDOR_OUI) >> 8 & 0xFF;
74  device_address[2] = NORDIC_SEMI_VENDOR_OUI & 0xFF;
75 #if defined(NRF_FICR)
76  device_address[3] = NRF_FICR->DEVICEADDR[1] & 0xFF;
77  device_address_low = NRF_FICR->DEVICEADDR[0];
78 #elif defined(NRF_FICR_NS)
79  device_address[3] = NRF_FICR_NS->DEVICEADDR[1] & 0xFF;
80  device_address_low = NRF_FICR_NS->DEVICEADDR[0];
81 #elif defined(NRF_FICR_S)
82  device_address[3] = 0;
83  device_address_low = 0;
84 #else
85 #error "NRF_FICR not supported?"
86 #endif
87  memcpy(&device_address[4], &device_address_low, sizeof(device_address_low));
88 
89  memcpy(&linkaddr_node_addr, &device_address[8 - LINKADDR_SIZE],
90  LINKADDR_SIZE);
91 }
92 /*---------------------------------------------------------------------------*/
93 /**
94  * @}
95  * @}
96  * @}
97  */
void populate_link_address(void)
Populates the link address using factory information.
Definition: linkaddr-arch.c:62
Header file for the link-layer address representation
linkaddr_t linkaddr_node_addr
The link-layer address of the node.
Definition: linkaddr.c:48
Link address implementation for the nRF.