osd-contiki/platform/stm32nucleo-spirit1/node-id.c
2015-10-09 19:40:39 +02:00

56 lines
2.5 KiB
C

/*
* Copyright (c) 2012, STMicroelectronics.
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
*
*
*/
/*---------------------------------------------------------------------------*/
#include "node-id.h"
#include "contiki-conf.h"
#include <string.h>
/*---------------------------------------------------------------------------*/
unsigned short node_id = 0;
unsigned char node_mac[8];
volatile uint32_t device_id[3];
/*---------------------------------------------------------------------------*/
#define DEVICE_ID_REG0 (*((volatile uint32_t *)0x1FF80050))
#define DEVICE_ID_REG1 (*((volatile uint32_t *)0x1FF80054))
#define DEVICE_ID_REG2 (*((volatile uint32_t *)0x1FF80064))
/*---------------------------------------------------------------------------*/
void
node_id_restore(void)
{
device_id[0] = DEVICE_ID_REG0;
device_id[1] = DEVICE_ID_REG1;
device_id[2] = DEVICE_ID_REG2;
(*(uint32_t *)node_mac) = DEVICE_ID_REG1;
(*(((uint32_t *)node_mac) + 1)) = DEVICE_ID_REG2 + DEVICE_ID_REG0;
node_id = (unsigned short)DEVICE_ID_REG2;
}
/*---------------------------------------------------------------------------*/