diff options
Diffstat (limited to 'host/lib/usrp/mboard_eeprom.cpp')
| -rw-r--r-- | host/lib/usrp/mboard_eeprom.cpp | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/host/lib/usrp/mboard_eeprom.cpp b/host/lib/usrp/mboard_eeprom.cpp index 869a38478..297de990f 100644 --- a/host/lib/usrp/mboard_eeprom.cpp +++ b/host/lib/usrp/mboard_eeprom.cpp @@ -23,6 +23,7 @@ #include <boost/lexical_cast.hpp> #include <boost/foreach.hpp> #include <algorithm> +#include <iostream> #include <cstddef> using namespace uhd; @@ -181,6 +182,7 @@ static const size_t B000_SERIAL_LEN = 8; static const uhd::dict<std::string, boost::uint8_t> USRP_B000_OFFSETS = boost::assign::map_list_of ("serial", 0xf8) ("name", 0xf8 - NAME_MAX_LEN) + ("mcr", 0xf8 - NAME_MAX_LEN - sizeof(boost::uint32_t)) ; static void load_b000(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ @@ -193,6 +195,21 @@ static void load_b000(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ mb_eeprom["name"] = bytes_to_string(iface.read_eeprom( B000_EEPROM_ADDR, USRP_B000_OFFSETS["name"], NAME_MAX_LEN )); + + //extract master clock rate as a 32-bit uint in Hz + boost::uint32_t master_clock_rate; + const byte_vector_t rate_bytes = iface.read_eeprom( + B000_EEPROM_ADDR, USRP_B000_OFFSETS["mcr"], sizeof(master_clock_rate) + ); + std::copy( + rate_bytes.begin(), rate_bytes.end(), //input + reinterpret_cast<boost::uint8_t *>(&master_clock_rate) //output + ); + master_clock_rate = ntohl(master_clock_rate); + if (master_clock_rate > 1e6 and master_clock_rate < 1e9){ + mb_eeprom["mcr"] = boost::lexical_cast<std::string>(master_clock_rate); + } + else mb_eeprom["mcr"] = ""; } static void store_b000(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ @@ -207,6 +224,19 @@ static void store_b000(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ B000_EEPROM_ADDR, USRP_B000_OFFSETS["name"], string_to_bytes(mb_eeprom["name"], NAME_MAX_LEN) ); + + //store the master clock rate as a 32-bit uint in Hz + if (mb_eeprom.has_key("mcr")){ + boost::uint32_t master_clock_rate = boost::uint32_t(boost::lexical_cast<double>(mb_eeprom["mcr"])); + master_clock_rate = htonl(master_clock_rate); + const byte_vector_t rate_bytes( + reinterpret_cast<const boost::uint8_t *>(&master_clock_rate), + reinterpret_cast<const boost::uint8_t *>(&master_clock_rate) + sizeof(master_clock_rate) + ); + iface.write_eeprom( + B000_EEPROM_ADDR, USRP_B000_OFFSETS["mcr"], rate_bytes + ); + } } /*********************************************************************** * Implementation of E100 load/store @@ -222,7 +252,8 @@ struct e100_eeprom_map{ unsigned char env_var[16]; unsigned char env_setting[64]; unsigned char serial[10]; - unsigned char name[NAME_MAX_LEN]; + unsigned char name[16]; + unsigned char mcr[sizeof(float)]; }; template <typename T> static const byte_vector_t to_bytes(const T &item){ @@ -254,6 +285,20 @@ static void load_e100(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ load_e100_string_xx(env_setting); load_e100_string_xx(serial); load_e100_string_xx(name); + + //extract the master clock rate + float master_clock_rate = 0; + const byte_vector_t rate_bytes = iface.read_eeprom( + E100_EEPROM_ADDR, offsetof(e100_eeprom_map, mcr), sizeof(master_clock_rate) + ); + std::copy( + rate_bytes.begin(), rate_bytes.end(), //source + reinterpret_cast<boost::uint8_t *>(&master_clock_rate) //destination + ); + if (master_clock_rate > 1e6 and master_clock_rate < 1e9){ + mb_eeprom["mcr"] = boost::lexical_cast<std::string>(master_clock_rate); + } + else mb_eeprom["mcr"] = ""; } static void store_e100(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ @@ -289,6 +334,17 @@ static void store_e100(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){ store_e100_string_xx(serial); store_e100_string_xx(name); + //store the master clock rate + if (mb_eeprom.has_key("mcr")){ + const float master_clock_rate = float(boost::lexical_cast<double>(mb_eeprom["mcr"])); + const byte_vector_t rate_bytes( + reinterpret_cast<const boost::uint8_t *>(&master_clock_rate), + reinterpret_cast<const boost::uint8_t *>(&master_clock_rate) + sizeof(master_clock_rate) + ); + iface.write_eeprom( + E100_EEPROM_ADDR, offsetof(e100_eeprom_map, mcr), rate_bytes + ); + } } /*********************************************************************** |