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drivers/w5100: use uuid_get() for HW addr gen

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This commit is contained in:
Hauke Petersen 2017-01-10 14:45:13 +01:00
parent ab2339cc95
commit 8624456efe
2 changed files with 4 additions and 13 deletions
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1
drivers/Makefile.dep
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@ -152,6 +152,7 @@ endif
ifneq (,$(filter w5100,$(USEMODULE)))
USEMODULE += netdev2_eth
USEMODULE += uuid
endif
ifneq (,$(filter xbee,$(USEMODULE)))

16
drivers/w5100/w5100.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2016 Freie Universität Berlin
* Copyright (C) 2016-2017 Freie Universität Berlin
*
* 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
@ -22,8 +22,8 @@
#include <string.h>
#include "log.h"
#include "uuid.h"
#include "assert.h"
#include "periph/cpuid.h"
#include "net/ethernet.h"
#include "net/netdev2/eth.h"
@ -37,7 +37,6 @@
#define SPI_CONF SPI_CONF_FIRST_RISING
#define RMSR_DEFAULT_VALUE (0x55)
#define MAC_SEED (0x23)
#define S0_MEMSIZE (0x2000)
#define S0_MASK (S0_MEMSIZE - 1)
@ -143,9 +142,6 @@ static int init(netdev2_t *netdev)
w5100_t *dev = (w5100_t *)netdev;
uint8_t tmp;
uint8_t hwaddr[ETHERNET_ADDR_LEN];
#if CPUID_LEN
uint8_t cpuid[CPUID_LEN];
#endif
/* test the SPI connection by reading the value of the RMSR register */
tmp = rreg(dev, REG_TMSR);
@ -159,13 +155,7 @@ static int init(netdev2_t *netdev)
while (rreg(dev, REG_MODE) & MODE_RESET) {};
/* initialize the device, start with writing the MAC address */
memset(hwaddr, MAC_SEED, ETHERNET_ADDR_LEN);
#if CPUID_LEN
cpuid_get(cpuid);
for (int i = 0; i < CPUID_LEN; i++) {
hwaddr[i % ETHERNET_ADDR_LEN] ^= cpuid[i];
}
#endif
uuid_get(hwaddr, ETHERNET_ADDR_LEN);
hwaddr[0] &= ~0x03; /* no group address and not globally unique */
wchunk(dev, REG_SHAR0, hwaddr, ETHERNET_ADDR_LEN);