274 lines
8.5 KiB
C
274 lines
8.5 KiB
C
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/*
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* Copyright (c) 2011, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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#define PRINTF(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
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#define DEBUG 1
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#if DEBUG
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#define PRINTD(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
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#else
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#define PRINTD(...)
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#endif
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#include "contiki.h"
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#include <avr/pgmspace.h>
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#include <avr/eeprom.h>
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#include <stdio.h>
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#include <string.h>
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#if AVR_WEBSERVER
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//#include "httpd-fs.h"
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//#include "httpd-cgi.h"
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#endif
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#include "contiki-net.h"
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#include "params.h"
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#if WITH_NODE_ID
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uint16_t node_id;
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#endif
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#if CONTIKI_CONF_RANDOM_MAC
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extern uint8_t rng_get_uint8(void);
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static void
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generate_new_eui64(uint8_t eui64[8]) {
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eui64[0] = 0x02;
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eui64[1] = rng_get_uint8();
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eui64[2] = rng_get_uint8();
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eui64[3] = 0xFF;
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eui64[4] = 0xFE;
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eui64[5] = rng_get_uint8();
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eui64[6] = rng_get_uint8();
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eui64[7] = rng_get_uint8();
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}
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#endif
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#if AVR_WEBSERVER
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/* Webserver builds can set these in httpd-fsdata.c via makefsdata.h */
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extern uint8_t default_mac_address[8];
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extern uint8_t default_server_name[16];
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extern uint8_t default_domain_name[30];
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#else
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const uint8_t default_mac_address[8] PROGMEM = PARAMS_EUI64ADDR;
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const uint8_t default_server_name[] PROGMEM = PARAMS_SERVERNAME;
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const uint8_t default_domain_name[] PROGMEM = PARAMS_DOMAINNAME;
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#endif
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#if PARAMETER_STORAGE==0
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/* 0 Hard coded, minmal program and eeprom usage. */
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extern uint8_t bootloader_get_mac(uint8_t);
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uint8_t
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params_get_eui64(uint8_t *eui64) {
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#if CONTIKI_CONF_RANDOM_MAC
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PRINTD("Generating random EUI64 MAC\n");
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generate_new_eui64(eui64);
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return 1;
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#else
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uint8_t i;
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#if BOOTLOADER_GET_MAC
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for (i=0;i<sizeof(default_mac_address);i++){
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eui64[i] = bootloader_get_mac(i);
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}
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#else
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for (i=0;i<sizeof(default_mac_address);i++) eui64[i] = pgm_read_byte_near(default_mac_address+i);
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#endif
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return 0;
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#endif
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}
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#elif PARAMETER_STORAGE==1
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/* 1 Stored in fixed eeprom locations, rewritten from flash if corrupt.
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* They can be manually changed and kept over program reflash.
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* The channel and bit complement are used to check EEMEM integrity,
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* If corrupt all values will be rewritten with the default flash values.
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* To make this work, get the channel before anything else.
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*/
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#if !AVR_WEBSERVER
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uint8_t eemem_mac_address[] EEMEM = PARAMS_EUI64ADDR;
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uint8_t eemem_server_name[] EEMEM = PARAMS_SERVERNAME;
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uint8_t eemem_domain_name[] EEMEM = PARAMS_DOMAINNAME;
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#endif /*AVR_WEBSERVER */
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uint16_t eemem_nodeid EEMEM = PARAMS_NODEID;
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uint8_t eemem_channel[2] EEMEM = {CHANNEL_802_15_4, ~CHANNEL_802_15_4};
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uint16_t eemem_panid EEMEM = IEEE802154_CONF_PANID;
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uint16_t eemem_panaddr EEMEM = PARAMS_PANADDR;
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uint8_t eemem_txpower EEMEM = PARAMS_TXPOWER;
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#if CONTIKI_CONF_RANDOM_MAC
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static uint8_t randomeui64;
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#endif
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uint8_t
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params_get_channel(void) {
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uint8_t x[2];
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*(uint16_t *)x = eeprom_read_word ((uint16_t *)&eemem_channel);
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/* Don't return an invalid channel number */
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if( (x[0]<11) || (x[0] > 26)) x[1]=x[0];
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/* Do exclusive or test on the two values read */
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if((uint8_t)x[0]!=(uint8_t)~x[1]) {//~x[1] can promote comparison to 16 bit
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/* Verification fails, rewrite everything */
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uint8_t i,buffer[32];
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PRINTD("EEPROM is corrupt, rewriting with defaults.\n");
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#if CONTIKI_CONF_RANDOM_MAC
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PRINTD("Generating random EUI64 MAC\n");
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generate_new_eui64(&buffer);
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randomeui64=1;
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#else
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for (i=0;i<sizeof(default_mac_address);i++) buffer[i] = pgm_read_byte_near(default_mac_address+i);
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#endif
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/* eeprom_write_block should not be interrupted */
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cli();
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eeprom_write_block(&buffer, &eemem_mac_address, sizeof(eemem_mac_address));
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for (i=0;i<sizeof(default_server_name);i++) buffer[i] = pgm_read_byte_near(default_server_name+i);
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eeprom_write_block(&buffer, &eemem_server_name, sizeof(eemem_server_name));
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for (i=0;i<sizeof(default_domain_name);i++) buffer[i] = pgm_read_byte_near(default_domain_name+i);
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eeprom_write_block(&buffer, &eemem_domain_name, sizeof(eemem_domain_name));
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eeprom_write_word(&eemem_panid , IEEE802154_CONF_PANID);
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eeprom_write_word(&eemem_panaddr, PARAMS_PANADDR);
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eeprom_write_byte(&eemem_txpower, PARAMS_TXPOWER);
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eeprom_write_word(&eemem_nodeid, PARAMS_NODEID);
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x[0] = CHANNEL_802_15_4;
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x[1]= ~x[0];
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eeprom_write_word((uint16_t *)&eemem_channel, *(uint16_t *)x);
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sei();
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}
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/* Always returns a valid channel */
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return x[0];
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}
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uint8_t
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params_get_eui64(uint8_t *eui64) {
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cli();
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eeprom_read_block ((void *)eui64, &eemem_mac_address, sizeof(linkaddr_t));
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sei();
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#if CONTIKI_CONF_RANDOM_MAC
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return randomeui64;
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#else
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return 0;
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#endif
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}
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uint16_t
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params_get_panid(void) {
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return eeprom_read_word(&eemem_panid);
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}
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uint16_t
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params_get_panaddr(void) {
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return eeprom_read_word (&eemem_panaddr);
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}
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uint8_t
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params_get_txpower(void)
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{
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return eeprom_read_byte(&eemem_txpower);
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}
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#else /* CONTIKI_CONF_SETTINGS_MANAGER */
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uint8_t
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params_get_channel() {
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uint8_t x;
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size_t size = 1;
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if (settings_get(SETTINGS_KEY_CHANNEL, 0,(unsigned char*)&x, &size) == SETTINGS_STATUS_OK) {
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PRINTD("<-Get RF channel %u\n",x);
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} else {
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x = CHANNEL_802_15_4;
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if (settings_add_uint8(SETTINGS_KEY_CHANNEL,x ) == SETTINGS_STATUS_OK) {
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PRINTD("->Set EEPROM RF channel to %d\n",x);
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}
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}
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return x;
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}
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uint8_t
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params_get_eui64(uint8_t *eui64) {
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size_t size = sizeof(linkaddr_t);
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if(settings_get(SETTINGS_KEY_EUI64, 0, (unsigned char*)eui64, &size) == SETTINGS_STATUS_OK) {
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PRINTD("<-Get EUI64 MAC\n");
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return 0;
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}
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#if CONTIKI_CONF_RANDOM_MAC
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PRINTD("Generating random EUI64 MAC\n");
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generate_new_eui64(eui64);
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#else
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{uint8_t i;for (i=0;i<8;i++) eui64[i] = pgm_read_byte_near(default_mac_address+i);} //test this
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#endif
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if (settings_add(SETTINGS_KEY_EUI64,(unsigned char*)eui64,8) == SETTINGS_STATUS_OK) {
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PRINTD("->Set EEPROM MAC address\n");
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}
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#if CONTIKI_CONF_RANDOM_MAC
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return 1;
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#else
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return 0;
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#endif
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}
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uint16_t
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params_get_panid(void) {
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uint16_t x;
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size_t size = 2;
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if (settings_get(SETTINGS_KEY_PAN_ID, 0,(unsigned char*)&x, &size) == SETTINGS_STATUS_OK) {
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PRINTD("<-Get PAN ID of %04x\n",x);
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} else {
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x=IEEE802154_PANID;
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if (settings_add_uint16(SETTINGS_KEY_PAN_ID,x)==SETTINGS_STATUS_OK) {
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PRINTD("->Set EEPROM PAN ID to %04x\n",x);
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}
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}
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return x;
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}
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uint16_t
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params_get_panaddr(void) {
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uint16_t x;
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size_t size = 2;
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if (settings_get(SETTINGS_KEY_PAN_ADDR, 0,(unsigned char*)&x, &size) == SETTINGS_STATUS_OK) {
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PRINTD("<-Get PAN address of %04x\n",x);
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} else {
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x=PARAMS_PANADDR;
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if (settings_add_uint16(SETTINGS_KEY_PAN_ADDR,x)==SETTINGS_STATUS_OK) {
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PRINTD("->Set EEPROM PAN address to %04x\n",x);
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}
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}
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return x;
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}
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uint8_t
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params_get_txpower(void) {
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uint8_t x;
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size_t size = 1;
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if (settings_get(SETTINGS_KEY_TXPOWER, 0,(unsigned char*)&x, &size) == SETTINGS_STATUS_OK) {
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PRINTD("<-Get tx power of %d (0=max)\n",x);
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} else {
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x=PARAMS_TXPOWER;
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if (settings_add_uint8(SETTINGS_KEY_TXPOWER,x)==SETTINGS_STATUS_OK) {
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PRINTD("->Set EEPROM tx power of %d (0=max)\n",x);
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}
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}
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return x;
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}
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#endif /* CONTIKI_CONF_SETTINGS_MANAGER */
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