uhd/host/lib/usrp_clock/multi_usrp_clock.cpp

//
// Copyright 2010-2013 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#include <uhd/exception.hpp>
#include <uhd/property_tree.hpp>
#include <uhd/usrp_clock/multi_usrp_clock.hpp>
#include <uhd/usrp_clock/octoclock_eeprom.hpp>
#include <uhd/utils/log.hpp>
#include <boost/format.hpp>

using namespace uhd;
using namespace uhd::usrp_clock;

/***********************************************************************
 * Multi USRP Clock implementation
 **********************************************************************/
class multi_usrp_clock_impl : public multi_usrp_clock
{
public:
    multi_usrp_clock_impl(const device_addr_t& addr)
    {
        _dev  = device::make(addr, device::CLOCK);
        _tree = _dev->get_tree();
    }

    device::sptr get_device(void) override
    {
        return _dev;
    }

    std::string get_pp_string(void) override
    {
        std::string buff = str(boost::format("%s USRP Clock Device\n")
                               % ((get_num_boards() > 1) ? "Multi" : "Single"));
        for (size_t i = 0; i < get_num_boards(); i++) {
            buff += str(boost::format("  Board %s\n") % i);
            buff += str(boost::format("    Reference: %s\n")
                        % (get_sensor("using_ref", i).value));
        }

        return buff;
    }

    size_t get_num_boards(void) override
    {
        return _tree->list("/mboards").size();
    }

    uint32_t get_time(size_t board) override
    {
        std::string board_str = str(boost::format("/mboards/%d") % board);

        return _tree->access<uint32_t>(board_str / "time").get();
    }

    sensor_value_t get_sensor(const std::string& name, size_t board) override
    {
        std::string board_str = str(boost::format("/mboards/%d") % board);

        return _tree->access<sensor_value_t>(board_str / "sensors" / name).get();
    }

    std::vector<std::string> get_sensor_names(size_t board) override
    {
        std::string board_str = str(boost::format("/mboards/%d") % board);

        return _tree->list(board_str / "sensors");
    }

private:
    device::sptr _dev;
    property_tree::sptr _tree;
};

multi_usrp_clock::~multi_usrp_clock(void)
{
    /* NOP */
}

/***********************************************************************
 * Multi USRP Clock factory function
 **********************************************************************/
multi_usrp_clock::sptr multi_usrp_clock::make(const device_addr_t& dev_addr)
{
    UHD_LOGGER_TRACE("OCTOCLOCK")
        << "multi_usrp_clock::make with args " << dev_addr.to_pp_string();
    return sptr(new multi_usrp_clock_impl(dev_addr));
}