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//
// Copyright 2011-2016 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/cal/container.hpp>
#include <uhd/cal/database.hpp>
#include <uhd/cal/iq_cal.hpp>
#include <uhd/usrp/dboard_eeprom.hpp>
#include <uhd/utils/csv.hpp>
#include <uhd/utils/log.hpp>
#include <uhdlib/usrp/common/apply_corrections.hpp>
#include <uhdlib/utils/paths.hpp>
#include <unordered_map>
#include <boost/filesystem.hpp> // For deprecated CSV reader only
#include <complex>
#include <cstdio>
#include <fstream>
#include <mutex>
using namespace uhd::usrp::cal;
std::mutex corrections_mutex;
/***********************************************************************
* FE apply corrections implementation
**********************************************************************/
namespace {
// Cache the loaded data so we don't have to serialize on every tune
std::unordered_map<std::string, iq_cal::sptr> fe_cal_cache;
// Deprecated CSV file loader. Delete this function once we remove CSV support.
// Then, also delete the uhd::csv module.
bool load_legacy_fe_corrections(const std::string& cal_key,
const std::string& db_serial,
const std::string& file_prefix)
{
namespace fs = boost::filesystem;
const std::string file_prefix_deprecated = file_prefix + "_cal_v0.2_";
// make the calibration file path
const fs::path cal_data_path = fs::path(uhd::get_appdata_path()) / ".uhd" / "cal"
/ (file_prefix_deprecated + db_serial + ".csv");
UHD_LOG_TRACE(
"CAL", "Checking for deprecated CSV-based cal data at " << cal_data_path);
if (not fs::exists(cal_data_path)) {
return false;
}
// The serial/timestamp don't really matter, we never look them up once we
// generate the container here.
auto iq_cal_container = iq_cal::make(file_prefix, db_serial, 0);
// parse csv file
std::ifstream cal_data(cal_data_path.string().c_str());
const uhd::csv::rows_type rows = uhd::csv::to_rows(cal_data);
bool read_data = false, skip_next = false;
for (const uhd::csv::row_type& row : rows) {
if (not read_data and not row.empty() and row[0] == "DATA STARTS HERE") {
read_data = true;
skip_next = true;
continue;
}
if (not read_data)
continue;
if (skip_next) {
skip_next = false;
continue;
}
iq_cal_container->set_cal_coeff(
std::stod(row[0]), {std::stod(row[1]), std::stod(row[2])});
}
fe_cal_cache.insert({cal_key, iq_cal_container});
UHD_LOGGER_INFO("CAL") << "Calibration data loaded: " << cal_data_path.string();
return true;
}
void apply_fe_corrections(uhd::property_tree::sptr sub_tree,
const std::string& db_serial,
const uhd::fs_path& fe_path,
const std::string& file_prefix,
const double lo_freq)
{
const auto cal_key = file_prefix + ":" + db_serial;
// Check if we need to load cal data
if (!fe_cal_cache.count(cal_key)) {
if (database::has_cal_data(file_prefix, db_serial)) {
try {
const auto cal_data = database::read_cal_data(file_prefix, db_serial);
fe_cal_cache.insert({cal_key, container::make<iq_cal>(cal_data)});
UHD_LOG_DEBUG("CAL",
"Loaded calibration data for " << file_prefix
<< " serial=" << db_serial);
} catch (const uhd::exception& ex) {
UHD_LOG_WARNING("CAL",
"Error occurred reading cal data: `" << ex.what()
<< "'. Skipping future loads.");
fe_cal_cache.insert({cal_key, nullptr});
}
// Delete the following else clause once we remove CSV support
} else if (load_legacy_fe_corrections(cal_key, db_serial, file_prefix)) {
UHD_LOG_WARNING("CAL",
"Found deprecated (CSV-based) cal data format. This feature will go away "
"in the future, please convert your calibration data to the new binary "
"format, or re-run your self-cal routines. For more information, see "
"https://files.ettus.com/manual/page_calibration.html");
} else {
// If there is no cal data, store a nullptr so we can skip the check
// next time.
fe_cal_cache.insert({cal_key, nullptr});
UHD_LOG_TRACE("CAL",
"No calibration data found for " << file_prefix
<< " serial=" << db_serial);
}
}
// Check if valid data even exists
if (fe_cal_cache.at(cal_key) == nullptr) {
return;
}
// OK we have cal data: Now apply it
sub_tree->access<std::complex<double>>(fe_path).set(
fe_cal_cache.at(cal_key)->get_cal_coeff(lo_freq));
}
} // namespace
/******************************************************************************
* Wrapper routines with nice try/catch + print, RFNoC device version
*****************************************************************************/
void uhd::usrp::apply_tx_fe_corrections(property_tree::sptr sub_tree,
const std::string& db_serial,
const uhd::fs_path tx_fe_corr_path,
const double lo_freq)
{
std::lock_guard<std::mutex> l(corrections_mutex);
try {
apply_fe_corrections(
sub_tree, db_serial, tx_fe_corr_path + "/iq_balance/value", "tx_iq", lo_freq);
} catch (const std::exception& e) {
UHD_LOGGER_ERROR("CAL") << "Failure in apply_tx_fe_corrections: " << e.what();
}
try {
apply_fe_corrections(
sub_tree, db_serial, tx_fe_corr_path + "/dc_offset/value", "tx_dc", lo_freq);
} catch (const std::exception& e) {
UHD_LOGGER_ERROR("CAL") << "Failure in apply_tx_fe_corrections: " << e.what();
}
}
void uhd::usrp::apply_rx_fe_corrections(property_tree::sptr sub_tree,
const std::string& db_serial,
const uhd::fs_path rx_fe_corr_path,
const double lo_freq)
{
std::lock_guard<std::mutex> l(corrections_mutex);
try {
apply_fe_corrections(
sub_tree, db_serial, rx_fe_corr_path + "/iq_balance/value", "rx_iq", lo_freq);
} catch (const std::exception& e) {
UHD_LOGGER_ERROR("CAL") << "Failure in apply_tx_fe_corrections: " << e.what();
}
}
/******************************************************************************
* Gen-2 versions
*****************************************************************************/
void uhd::usrp::apply_tx_fe_corrections(
property_tree::sptr sub_tree, // starts at mboards/x
const std::string& slot, // name of dboard slot
const double lo_freq // actual lo freq
)
{
// extract eeprom serial
const uhd::fs_path db_path = "dboards/" + slot + "/tx_eeprom";
const std::string db_serial =
sub_tree->access<uhd::usrp::dboard_eeprom_t>(db_path).get().serial;
const uhd::fs_path corr_path("tx_frontends/" + slot);
apply_tx_fe_corrections(sub_tree, db_serial, corr_path, lo_freq);
}
void uhd::usrp::apply_rx_fe_corrections(
property_tree::sptr sub_tree, // starts at mboards/x
const std::string& slot, // name of dboard slot
const double lo_freq // actual lo freq
)
{
const uhd::fs_path db_path = "dboards/" + slot + "/rx_eeprom";
const std::string db_serial =
sub_tree->access<uhd::usrp::dboard_eeprom_t>(db_path).get().serial;
const uhd::fs_path corr_path("rx_frontends/" + slot);
apply_rx_fe_corrections(sub_tree, db_serial, corr_path, lo_freq);
}
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