uhd: Changed mboard_eeprom_t interface, refactored MB EEPROM code

- uhd::usrp::mboard_eeprom_t is now simply a map. Its commit() method
  has no utility being a public API call, because the user never gets
  access to the appropriate I2C object (Minor API breakage)
- The central mboard_eeprom.cpp file was broken up and put into many
  smaller compilation units in every device's implementation folder.
- Renamed some of the constants (e.g. B000_* -> USRP1_*, N100_* ->
  N200_*)
- Removed the N000_* EEPROM code, because, well, you know, there's no
  such device

3 files changed, 45 insertions, 0 deletions

diff --git a/host/lib/utils/CMakeLists.txt b/host/lib/utils/CMakeLists.txt
index 0b163c35f..a9e3ae89a 100644
--- a/host/lib/utils/CMakeLists.txt
+++ b/host/lib/utils/CMakeLists.txt
@@ -19,6 +19,8 @@
 # This file included, use CMake directory variables
 ########################################################################
 
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+
 ########################################################################
 # Setup defines for process scheduling
 ########################################################################
@@ -168,6 +170,7 @@ SET_SOURCE_FILES_PROPERTIES(
 ########################################################################
 LIBUHD_APPEND_SOURCES(
     ${CMAKE_CURRENT_SOURCE_DIR}/csv.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/eeprom_utils.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/gain_group.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ihex.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/load_modules.cpp
diff --git a/host/lib/utils/eeprom_utils.cpp b/host/lib/utils/eeprom_utils.cpp
new file mode 100644
index 000000000..acf81a1ce
--- /dev/null
+++ b/host/lib/utils/eeprom_utils.cpp
@@ -0,0 +1,22 @@
+//
+// Copyright 2017 Ettus Research (National Instruments Corp.)
+//
+// SPDX-License-Identifier: GPL-3.0
+//
+
+#include "eeprom_utils.hpp"
+#include <boost/lexical_cast.hpp>
+
+uhd::byte_vector_t string_to_uint16_bytes(const std::string &num_str){
+    const uint16_t num = boost::lexical_cast<uint16_t>(num_str);
+    const std::vector<uint8_t> lsb_msb = {
+        uint8_t(num >> 0),
+        uint8_t(num >> 8)
+    };
+    return lsb_msb;
+}
+
+std::string uint16_bytes_to_string(const uhd::byte_vector_t &bytes){
+    const uint16_t num = (uint16_t(bytes.at(0)) << 0) | (uint16_t(bytes.at(1)) << 8);
+    return (num == 0 or num == 0xffff)? "" : std::to_string(num);
+}
diff --git a/host/lib/utils/eeprom_utils.hpp b/host/lib/utils/eeprom_utils.hpp
new file mode 100644
index 000000000..b6ff264fb
--- /dev/null
+++ b/host/lib/utils/eeprom_utils.hpp
@@ -0,0 +1,20 @@
+//
+// Copyright 2017 Ettus Research (National Instruments Corp.)
+//
+// SPDX-License-Identifier: GPL-3.0
+//
+
+#include <uhd/types/byte_vector.hpp>
+#include <uhd/types/mac_addr.hpp>
+#include <boost/asio/ip/address_v4.hpp>
+#include <string>
+#include <vector>
+
+static const size_t SERIAL_LEN = 9;
+static const size_t NAME_MAX_LEN = 32 - SERIAL_LEN;
+
+//! convert a string to a byte vector to write to eeprom
+uhd::byte_vector_t string_to_uint16_bytes(const std::string &num_str);
+
+//! convert a byte vector read from eeprom to a string
+std::string uint16_bytes_to_string(const uhd::byte_vector_t &bytes);