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RIOT/sys/auto_init/auto_init.c
Martine Lenders 19bf230de2 auto_init: use full hash to configure radio address 
Since the 4-byte CPU ID on native is in most cases generated from the 2-byte
PID of the native process, choosing the lower half of the hash of the CPU ID to
set the radio address led to always setting it to the hash of 0 in this
cases. This changes it to use both halves of the hash and taking the
modulus so this corner cases can be avoided.
2014-10-16 16:07:50 +02:00

250 lines
5.8 KiB
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/**
* Auto initialization for used modules
*
* Copyright (C) 2013 INRIA.
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*
* @ingroup auto_init
* @{
* @file auto_init_c
* @brief initializes any used module that has a trivial init function
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @}
*/
#include <stdint.h>
#include <stdio.h>
#include "auto_init.h"
#ifdef MODULE_SHT11
#include "sht11.h"
#endif
#ifdef MODULE_GPIOINT
#include "gpioint.h"
#endif
#ifdef MODULE_CC110X
#include "cc110x.h"
#endif
#ifdef MODULE_LTC4150
#include "ltc4150.h"
#endif
#ifdef MODULE_UART0
#include "board_uart0.h"
#endif
#ifdef MODULE_MCI
#include "diskio.h"
#endif
#ifdef MODULE_VTIMER
#include "vtimer.h"
#endif
#ifdef MODULE_RTC
#include "rtc.h"
#endif
#ifdef MODULE_SIXLOWPAN
#include "sixlowpan.h"
#endif
#ifdef MODULE_UDP
#include "udp.h"
#endif
#ifdef MODULE_TCP
#include "tcp.h"
#endif
#ifdef MODULE_NET_IF
#include "cpu-conf.h"
#include "cpu.h"
#include "kernel.h"
#include "net_if.h"
#include "transceiver.h"
#include "net_help.h"
#include "hashes.h"
#include "periph/cpuid.h"
#endif
#define ENABLE_DEBUG (0)
#if ENABLE_DEBUG
#define DEBUG_ENABLED
#endif
#include "debug.h"
#ifndef CONF_RADIO_ADDR
#define CONF_RADIO_ADDR (1)
#endif
#ifndef CONF_PAN_ID
#define CONF_PAN_ID (0xabcd)
#endif
#ifdef MODULE_NET_IF
void auto_init_net_if(void)
{
int iface;
transceiver_type_t transceivers = 0;
#ifdef MODULE_AT86RF231
transceivers |= TRANSCEIVER_AT86RF231;
#endif
#ifdef MODULE_CC1020
transceivers |= TRANSCEIVER_CC1020;
#endif
#if MODULE_CC110X || MODULE_CC110X_NG
transceivers |= TRANSCEIVER_CC1100;
#endif
#ifdef MODULE_CC2420
transceivers |= TRANSCEIVER_CC2420;
#endif
#ifdef MODULE_MC1322X
transceivers |= TRANSCEIVER_MC1322X;
#endif
#ifdef MODULE_NATIVENET
transceivers |= TRANSCEIVER_NATIVE;
#endif
net_if_init();
if (transceivers != 0) {
#if CPUID_ID_LEN && defined(MODULE_HASHES)
uint8_t cpuid[CPUID_ID_LEN];
cpuid_get(cpuid);
#endif
transceiver_init(transceivers);
transceiver_start();
iface = net_if_init_interface(0, transceivers);
#if CPUID_ID_LEN && defined(MODULE_HASHES)
net_if_eui64_t eui64;
uint32_t hash_h = djb2_hash(cpuid, CPUID_ID_LEN / 2);
#if CPUID_ID_LEN % 2 == 0
uint32_t hash_l = djb2_hash(&(cpuid[CPUID_ID_LEN / 2]),
CPUID_ID_LEN / 2);
#else /* CPUID_ID_LEN % 2 == 0 */
uint32_t hash_l = djb2_hash(&(cpuid[CPUID_ID_LEN / 2]),
CPUID_ID_LEN / 2 + 1);
#endif /* CPUID_ID_LEN % 2 == 0 */
memcpy(&(eui64.uint32[0]), &hash_h, sizeof(uint32_t));
memcpy(&(eui64.uint32[1]), &hash_l, sizeof(uint32_t));
net_if_set_eui64(iface, &eui64);
#ifdef DEBUG_ENABLED
DEBUG("Auto init radio long address on interface %d to ", iface);
for (size_t i = 0; i < 8; i++) {
printf("%02x ", eui64.uint8[i]);
}
DEBUG("\n");
#endif /* DEBUG_ENABLED */
#undef CONF_RADIO_ADDR
uint16_t hwaddr = HTONS((uint16_t)((hash_l + hash_h) % (1 << 16)));
net_if_set_hardware_address(iface, hwaddr);
DEBUG("Auto init radio address on interface %d to 0x%04x\n", iface, hwaddr);
#else /* CPUID_ID_LEN && defined(MODULE_HASHES) */
if (net_if_set_src_address_mode(iface, NET_IF_TRANS_ADDR_M_SHORT)) {
DEBUG("Auto init source address mode to short on interface %d\n",
iface);
}
else {
net_if_set_src_address_mode(iface, NET_IF_TRANS_ADDR_M_LONG);
DEBUG("Auto init source address mode to long on interface %d\n",
iface);
}
if (!net_if_get_hardware_address(iface)) {
DEBUG("Auto init radio address on interface %d to 0x%04x\n", iface, CONF_RADIO_ADDR);
DEBUG("Change this value at compile time with macro CONF_RADIO_ADDR\n");
net_if_set_hardware_address(iface, CONF_RADIO_ADDR);
}
#endif /* CPUID_ID_LEN && defined(MODULE_HASHES) */
if (net_if_get_pan_id(iface) <= 0) {
DEBUG("Auto init PAN ID on interface %d to 0x%04x\n", iface, CONF_PAN_ID);
DEBUG("Change this value at compile time with macro CONF_PAN_ID\n");
net_if_set_pan_id(iface, CONF_PAN_ID);
}
if (iface >= 0) {
DEBUG("Auto init interface %d\n", iface);
}
}
else {
iface = -1;
}
}
#endif /* MODULE_NET_IF */
void auto_init(void)
{
#ifdef MODULE_VTIMER
DEBUG("Auto init vtimer module.\n");
vtimer_init();
#endif
#ifdef MODULE_UART0
DEBUG("Auto init uart0 module.\n");
board_uart0_init();
#endif
#ifdef MODULE_RTC
DEBUG("Auto init rtc module.\n");
rtc_init();
rtc_enable();
#endif
#ifdef MODULE_SHT11
DEBUG("Auto init SHT11 module.\n");
sht11_init();
#endif
#ifdef MODULE_GPIOINT
DEBUG("Auto init gpioint module.\n");
gpioint_init();
#endif
#ifdef MODULE_CC110X
DEBUG("Auto init CC1100 module.\n");
#ifndef MODULE_TRANSCEIVER
cc1100_init();
#endif
#endif
#ifdef MODULE_LTC4150
DEBUG("Auto init ltc4150 module.\n");
ltc4150_init();
#endif
#ifdef MODULE_MCI
DEBUG("Auto init mci module.\n");
MCI_initialize();
#endif
#ifdef MODULE_NET_IF
DEBUG("Auto init net_if module.\n");
auto_init_net_if();
#endif
#ifdef MODULE_SIXLOWPAN
DEBUG("Auto init 6LoWPAN module.\n");
sixlowpan_lowpan_init();
#endif
#ifdef MODULE_PROFILING
extern void profiling_init(void);
profiling_init();
#endif
#ifdef MODULE_UDP
DEBUG("Auto init transport layer module: [udp].\n");
udp_init_transport_layer();
#endif
#ifdef MODULE_TCP
DEBUG("Auto init transport layer module: [tcp].\n");
tcp_init_transport_layer();
#endif
}
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