nes-proj/arch/cpu/simplelink-cc13xx-cc26xx/rf/ble-addr.c
2018-08-31 11:06:31 +02:00

138 lines
4.5 KiB
C

/*
* Copyright (c) 2016, Michael Spoerk
* 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 cc13xx-cc26xx-rf-ble-addr
* @{
*
* \file
* Implementation of the CC13xx/CC26xx IEEE addresses driver.
* \author
* Michael Spoerk <mi.spoerk@gmail.com>
* Edvard Pettersen <e.pettersen@ti.com>
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "dev/ble-hal.h"
#include "net/linkaddr.h"
#include "rf/ble-addr.h"
/*---------------------------------------------------------------------------*/
#include <ti/devices/DeviceFamily.h>
#include DeviceFamily_constructPath(inc/hw_memmap.h)
#include DeviceFamily_constructPath(inc/hw_fcfg1.h)
#include DeviceFamily_constructPath(inc/hw_ccfg.h)
/*---------------------------------------------------------------------------*/
#include <string.h>
/*---------------------------------------------------------------------------*/
#define BLE_MAC_PRIMARY_ADDRESS (FCFG1_BASE + FCFG1_O_MAC_BLE_0)
#define BLE_MAC_SECONDARY_ADDRESS (CCFG_BASE + CCFG_O_IEEE_BLE_0)
/*---------------------------------------------------------------------------*/
uint8_t *
ble_addr_ptr(void)
{
volatile const uint8_t *const primary = (uint8_t *)BLE_MAC_PRIMARY_ADDRESS;
volatile const uint8_t *const secondary = (uint8_t *)BLE_MAC_SECONDARY_ADDRESS;
/*
* Reading from primary location...
* ...unless we can find a byte != 0xFF in secondary
*
* Intentionally checking all bytes here instead of len, because we
* are checking validity of the entire address irrespective of the
* actual number of bytes the caller wants to copy over.
*/
size_t i;
for(i = 0; i < BLE_ADDR_SIZE; i++) {
if(secondary[i] != 0xFF) {
/* A byte in secondary is not 0xFF. Use secondary address. */
return (uint8_t *)secondary;
}
}
/* All bytes in secondary is 0xFF. Use primary address. */
return (uint8_t *)primary;
}
/*---------------------------------------------------------------------------*/
int
ble_addr_cpy(uint8_t *dst)
{
if(!dst) {
return -1;
}
volatile const uint8_t *const ble_addr = ble_addr_ptr();
/*
* We have chosen what address to read the BLE address from. Do so,
* inverting byte order
*/
size_t i;
for(i = 0; i < BLE_ADDR_SIZE; i++) {
dst[i] = ble_addr[BLE_ADDR_SIZE - 1 - i];
}
return 0;
}
/*---------------------------------------------------------------------------*/
int
ble_addr_to_eui64(uint8_t *dst, uint8_t *src)
{
if(!dst || !src) {
return -1;
}
memcpy(dst, src, 3);
dst[3] = 0xFF;
dst[4] = 0xFE;
memcpy(&dst[5], &src[3], 3);
return 0;
}
/*---------------------------------------------------------------------------*/
int
ble_addr_to_eui64_cpy(uint8_t *dst)
{
if(!dst) {
return -1;
}
int res;
uint8_t ble_addr[BLE_ADDR_SIZE];
res = ble_addr_cpy(ble_addr);
if(res) {
return -1;
}
return ble_addr_to_eui64(dst, ble_addr);
}
/*---------------------------------------------------------------------------*/
/** @} */