diff options
Diffstat (limited to 'firmware/microblaze/lib/eth_addrs.c')
-rw-r--r-- | firmware/microblaze/lib/eth_addrs.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/firmware/microblaze/lib/eth_addrs.c b/firmware/microblaze/lib/eth_addrs.c new file mode 100644 index 000000000..ff5d04f4d --- /dev/null +++ b/firmware/microblaze/lib/eth_addrs.c @@ -0,0 +1,146 @@ +/* + * Copyright 2010 Ettus Research LLC + * Copyright 2007 Free Software Foundation, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "ethernet.h" +#include "memory_map.h" +#include "nonstdio.h" +#include <stdbool.h> +#include "i2c.h" +#include "usrp2/fw_common.h" + +//////////////////////////////////////////////////////////////////////// +// EEPROM Layout +//////////////////////////////////////////////////////////////////////// +#define USRP2_EE_MBOARD_MAC_ADDR 0x02 //6 bytes +#define USRP2_EE_MBOARD_IP_ADDR 0x0C //uint32, big-endian + +static bool +unprogrammed(const void *t, size_t len) +{ + int i; + uint8_t *p = (uint8_t *)t; + bool all_zeros = true; + bool all_ones = true; + for (i = 0; i < len; i++){ + all_zeros &= p[i] == 0x00; + all_ones &= p[i] == 0xff; + } + return all_ones | all_zeros; +} + +//////////////////// MAC Addr Stuff /////////////////////// + +static int8_t src_mac_addr_initialized = false; + +static const eth_mac_addr_t default_mac_addr = {{ + 0x00, 0x50, 0xC2, 0x85, 0x3f, 0xff + }}; + +static eth_mac_addr_t src_mac_addr = {{ + 0x00, 0x50, 0xC2, 0x85, 0x3f, 0xff + }}; + +void set_default_mac_addr(void) +{ + src_mac_addr_initialized = true; + src_mac_addr = default_mac_addr; +} + +const eth_mac_addr_t * +ethernet_mac_addr(void) +{ + if (!src_mac_addr_initialized){ // fetch from eeprom + src_mac_addr_initialized = true; + + // if we're simulating, don't read the EEPROM model, it's REALLY slow + if (hwconfig_simulation_p()) + return &src_mac_addr; + + eth_mac_addr_t tmp; + bool ok = eeprom_read(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_MAC_ADDR, &tmp, sizeof(tmp)); + if (!ok || unprogrammed(&tmp, sizeof(tmp))){ + // use the default + } + else + src_mac_addr = tmp; + } + + return &src_mac_addr; +} + +bool +ethernet_set_mac_addr(const eth_mac_addr_t *t) +{ + bool ok = eeprom_write(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_MAC_ADDR, t, sizeof(eth_mac_addr_t)); + if (ok){ + src_mac_addr = *t; + src_mac_addr_initialized = true; + //eth_mac_set_addr(t); //this breaks the link + } + + return ok; +} + +//////////////////// IP Addr Stuff /////////////////////// + +static int8_t src_ip_addr_initialized = false; + +static const struct ip_addr default_ip_addr = { + (192 << 24 | 168 << 16 | 10 << 8 | 2 << 0) +}; + +static struct ip_addr src_ip_addr = { + (192 << 24 | 168 << 16 | 10 << 8 | 2 << 0) +}; + +void set_default_ip_addr(void) +{ + src_ip_addr_initialized = true; + src_ip_addr = default_ip_addr; +} + +const struct ip_addr *get_ip_addr(void) +{ + if (!src_ip_addr_initialized){ // fetch from eeprom + src_ip_addr_initialized = true; + + // if we're simulating, don't read the EEPROM model, it's REALLY slow + if (hwconfig_simulation_p()) + return &src_ip_addr; + + struct ip_addr tmp; + bool ok = eeprom_read(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_IP_ADDR, &tmp, sizeof(tmp)); + if (!ok || unprogrammed(&tmp, sizeof(tmp))){ + // use the default + } + else + src_ip_addr = tmp; + } + + return &src_ip_addr; +} + +bool set_ip_addr(const struct ip_addr *t){ + bool ok = eeprom_write(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_IP_ADDR, t, sizeof(struct ip_addr)); + if (ok){ + src_ip_addr = *t; + src_ip_addr_initialized = true; + } + + return ok; +} |