node_id.c

MANTIS是由科罗拉多大学开发的传感器网络嵌入式操作系统。 这是mantis的0.9.5版本的源码。

//  This file is part of MANTIS OS, Operating System
//  See http://mantis.cs.colorado.edu/
//
//  Copyright (C) 2003,2004,2005 University of Colorado, Boulder
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the mos license (see file LICENSE)

/**************************************************************************/
/* File:    node_id.c                                                     */
/* Author      Charles Gruenwald III   :  [e-mail]           */
/*   Date:  04/14/2004                                                    */
/*                                                                        */
/* Description: this uses the eeprom to get and set the node id.          */
/**************************************************************************/

#include "mos.h"

#include "dev.h"
#include "avr-eeprom.h"
#ifdef ARCH_MSP430
#include "telos-flash.h"
#endif

static uint16_t global_node_id = -1;

void mos_node_id_init(void)
{
#ifdef ARCH_AVR
   dev_open(DEV_AVR_EEPROM);
   dev_ioctl(DEV_AVR_EEPROM, DEV_SEEK, 0);
   dev_read(DEV_AVR_EEPROM, (uint8_t *)&global_node_id, sizeof(global_node_id));
   dev_close(DEV_AVR_EEPROM);
#elif defined(ARCH_MSP430)
   
   dev_open(DEV_TELOS_FLASH);
   dev_ioctl(DEV_TELOS_FLASH, DEV_SEEK, (uint32_t)0);
   dev_read(DEV_TELOS_FLASH, (uint8_t *)&global_node_id, sizeof(global_node_id));
   dev_close(DEV_TELOS_FLASH);
   
#else
   global_node_id = -1;
#endif 
}

uint16_t mos_node_id_get(void)
{
   return global_node_id;
}

void mos_node_id_set (uint16_t new_node_id)
{
   
#ifdef ARCH_AVR
   dev_open(DEV_AVR_EEPROM);
   dev_ioctl(DEV_AVR_EEPROM, DEV_SEEK, 0);
   dev_write(DEV_AVR_EEPROM, (uint8_t *)&new_node_id, sizeof(new_node_id));
   dev_close(DEV_AVR_EEPROM);
#elif defined(ARCH_MSP430)
   dev_open(DEV_TELOS_FLASH);

   dev_mode(DEV_TELOS_FLASH, DEV_MODE_ON);
   
   dev_ioctl(DEV_TELOS_FLASH, TELOS_FLASH_SECT_ERASE, (uint32_t)0);
   dev_ioctl(DEV_TELOS_FLASH, DEV_SEEK, (uint32_t)0);
   dev_write(DEV_TELOS_FLASH, (uint8_t *)&new_node_id, sizeof(new_node_id));
   dev_close(DEV_TELOS_FLASH);

   dev_mode(DEV_TELOS_FLASH, DEV_MODE_OFF);


   
#endif
   global_node_id = new_node_id;
}