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//
// Copyright 2010 Ettus Research LLC
//
// 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 <uhd/usrp/mboard_eeprom.hpp>
#include <uhd/types/mac_addr.hpp>
#include <uhd/utils/algorithm.hpp>
#include <boost/asio/ip/address_v4.hpp>
#include <boost/assign/list_of.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/foreach.hpp>
using namespace uhd;
using namespace uhd::usrp;
/***********************************************************************
* Constants
**********************************************************************/
static const size_t SERIAL_LEN = 9;
static const size_t NAME_MAX_LEN = 32 - SERIAL_LEN;
/***********************************************************************
* Utility functions
**********************************************************************/
//! create a string from a byte vector, return empty if invalid ascii
static const std::string bytes_to_string(const byte_vector_t &bytes){
std::string out;
BOOST_FOREACH(boost::uint8_t byte, bytes){
if (byte == '\0') return out;
if (byte < 32 or byte > 127) return "";
out += byte;
}
return out;
}
//! create a byte vector from a string, null terminate unless max length
static const byte_vector_t string_to_bytes(const std::string &string, size_t max_length){
byte_vector_t bytes;
for (size_t i = 0; i < std::min(string.size(), max_length); i++){
bytes.push_back(string[i]);
}
if (bytes.size() < max_length - 1) bytes.push_back('\0');
return bytes;
}
/***********************************************************************
* Implementation of NXXX load/store
**********************************************************************/
static const boost::uint8_t NXXX_EEPROM_ADDR = 0x50;
static const uhd::dict<std::string, boost::uint8_t> USRP_NXXX_OFFSETS = boost::assign::map_list_of
("rev-lsb-msb", 0x00)
("mac-addr", 0x02)
("ip-addr", 0x08)
//leave space here for other addresses (perhaps)
("serial", 0x18)
("name", 0x18 + SERIAL_LEN)
;
static void load_nxxx(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){
//extract the revision number
byte_vector_t rev_lsb_msb = iface.read_eeprom(NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["rev-lsb-msb"], 2);
boost::uint16_t rev = (boost::uint16_t(rev_lsb_msb.at(0)) << 0) | (boost::uint16_t(rev_lsb_msb.at(1)) << 8);
mb_eeprom["rev"] = boost::lexical_cast<std::string>(rev);
//extract the addresses
mb_eeprom["mac-addr"] = mac_addr_t::from_bytes(iface.read_eeprom(
NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["mac-addr"], 6
)).to_string();
boost::asio::ip::address_v4::bytes_type ip_addr_bytes;
std::copy(iface.read_eeprom(NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["ip-addr"], 4), ip_addr_bytes);
mb_eeprom["ip-addr"] = boost::asio::ip::address_v4(ip_addr_bytes).to_string();
//extract the serial
mb_eeprom["serial"] = bytes_to_string(iface.read_eeprom(
NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["serial"], SERIAL_LEN
));
//extract the name
mb_eeprom["name"] = bytes_to_string(iface.read_eeprom(
NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["name"], NAME_MAX_LEN
));
}
static void store_nxxx(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){
//parse the revision number
boost::uint16_t rev = boost::lexical_cast<boost::uint16_t>(mb_eeprom["rev"]);
byte_vector_t rev_lsb_msb = boost::assign::list_of
(boost::uint8_t(rev >> 0))
(boost::uint8_t(rev >> 8))
;
iface.write_eeprom(NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["rev-lsb-msb"], rev_lsb_msb);
//store the addresses
iface.write_eeprom(
NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["mac-addr"],
mac_addr_t::from_string(mb_eeprom["mac-addr"]).to_bytes()
);
byte_vector_t ip_addr_bytes(4);
std::copy(boost::asio::ip::address_v4::from_string(mb_eeprom["ip-addr"]).to_bytes(), ip_addr_bytes);
iface.write_eeprom(NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["ip-addr"], ip_addr_bytes);
//store the serial
iface.write_eeprom(
NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["serial"],
string_to_bytes(mb_eeprom["serial"], SERIAL_LEN)
);
//store the name
iface.write_eeprom(
NXXX_EEPROM_ADDR, USRP_NXXX_OFFSETS["name"],
string_to_bytes(mb_eeprom["name"], NAME_MAX_LEN)
);
}
/***********************************************************************
* Implementation of BXXX load/store
**********************************************************************/
static const boost::uint8_t BXXX_EEPROM_ADDR = 0x50;
static const uhd::dict<std::string, boost::uint8_t> USRP_BXXX_OFFSETS = boost::assign::map_list_of
("serial", 0xf8)
("name", 0xf8 + SERIAL_LEN)
;
static void load_bxxx(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){
//extract the serial
mb_eeprom["serial"] = bytes_to_string(iface.read_eeprom(
BXXX_EEPROM_ADDR, USRP_BXXX_OFFSETS["serial"], SERIAL_LEN
));
//extract the name
mb_eeprom["name"] = bytes_to_string(iface.read_eeprom(
BXXX_EEPROM_ADDR, USRP_BXXX_OFFSETS["name"], NAME_MAX_LEN
));
}
static void store_bxxx(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){
//store the serial
iface.write_eeprom(
BXXX_EEPROM_ADDR, USRP_BXXX_OFFSETS["serial"],
string_to_bytes(mb_eeprom["serial"], SERIAL_LEN)
);
//store the name
iface.write_eeprom(
BXXX_EEPROM_ADDR, USRP_BXXX_OFFSETS["name"],
string_to_bytes(mb_eeprom["name"], NAME_MAX_LEN)
);
}
/***********************************************************************
* Implementation of mboard eeprom
**********************************************************************/
mboard_eeprom_t::mboard_eeprom_t(void){
/* NOP */
}
mboard_eeprom_t::mboard_eeprom_t(i2c_iface &iface, map_type map){
switch(map){
case MAP_NXXX: load_nxxx(*this, iface); break;
case MAP_BXXX: load_bxxx(*this, iface); break;
}
}
void mboard_eeprom_t::commit(i2c_iface &iface, map_type map){
switch(map){
case MAP_NXXX: store_nxxx(*this, iface); break;
case MAP_BXXX: store_bxxx(*this, iface); break;
}
}
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