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//
// Copyright 2020 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/types/time_spec.hpp>
#include <uhdlib/usrp/dboard/zbx/zbx_cpld_ctrl.hpp>
#include <boost/test/unit_test.hpp>
#include <iostream>
using namespace uhd::usrp::zbx;
struct mock_reg_iface_type
{
uint32_t last_addr = 0;
zbx_cpld_ctrl::chan_t last_chan;
std::map<uint32_t, uint32_t> memory;
uhd::time_spec_t sleep_counter = uhd::time_spec_t(0.0);
};
struct zbx_cpld_fixture
{
zbx_cpld_fixture()
: cpld(
[&](const uint32_t addr,
const uint32_t data,
const zbx_cpld_ctrl::chan_t chan) {
std::cout << "[MOCKREGS] poke32(" << addr << ", " << data << ")"
<< std::endl;
mock_reg_iface.last_addr = addr;
mock_reg_iface.last_chan = chan;
mock_reg_iface.memory[addr] = data;
},
[&](const uint32_t addr) -> uint32_t {
std::cout << "[MOCKREGS] peek32(" << addr << ") => "
<< mock_reg_iface.memory.at(addr) << std::endl;
return mock_reg_iface.memory.at(addr);
},
[&](const uhd::time_spec_t& time) { mock_reg_iface.sleep_counter += time; },
"TEST::CPLD")
{
// nop
}
mock_reg_iface_type mock_reg_iface;
zbx_cpld_ctrl cpld;
};
BOOST_FIXTURE_TEST_CASE(zbx_cpld_ctrl_test, zbx_cpld_fixture)
{
cpld.set_scratch(23);
BOOST_CHECK_EQUAL(cpld.get_scratch(), 23);
cpld.pulse_lo_sync(0, {zbx_lo_t::TX0_LO1});
BOOST_CHECK_EQUAL(mock_reg_iface.memory[0x1024], 1);
mock_reg_iface.memory[0x1024] = 0;
// Make sure there are no caching issues:
cpld.pulse_lo_sync(0, {zbx_lo_t::TX0_LO1});
BOOST_CHECK_EQUAL(mock_reg_iface.memory[0x1024], 1);
// Now all:
cpld.pulse_lo_sync(0,
{zbx_lo_t::TX0_LO1,
zbx_lo_t::TX0_LO2,
zbx_lo_t::TX1_LO1,
zbx_lo_t::TX1_LO2,
zbx_lo_t::RX0_LO1,
zbx_lo_t::RX0_LO2,
zbx_lo_t::RX1_LO1,
zbx_lo_t::RX1_LO2});
BOOST_CHECK_EQUAL(mock_reg_iface.memory[0x1024], 0xFF);
mock_reg_iface.memory[0x1024] = 0;
cpld.set_lo_sync_bypass(true);
BOOST_CHECK_THROW(cpld.pulse_lo_sync(0, {zbx_lo_t::TX0_LO1}), uhd::runtime_error);
BOOST_CHECK_EQUAL(mock_reg_iface.memory[0x1024], 0x100);
}
BOOST_FIXTURE_TEST_CASE(zbx_tx_amp_test, zbx_cpld_fixture)
{
cpld.set_tx_antenna_switches(
0, 0, uhd::usrp::zbx::DEFAULT_TX_ANTENNA, tx_amp::HIGHBAND);
BOOST_CHECK(tx_amp::HIGHBAND == cpld.get_tx_amp_settings(0, 0, false));
mock_reg_iface.memory[0x2000] = 0;
BOOST_CHECK(tx_amp::HIGHBAND == cpld.get_tx_amp_settings(0, 0, false));
BOOST_CHECK(tx_amp::HIGHBAND != cpld.get_tx_amp_settings(0, 0, true));
BOOST_CHECK(tx_amp::BYPASS == cpld.get_tx_amp_settings(0, 0, false));
}
BOOST_FIXTURE_TEST_CASE(zbx_get_set_dsa_test, zbx_cpld_fixture)
{
// We only test the first table index
constexpr size_t dsa_table_index = 0;
for (const size_t chan : {0, 1}) {
const uint32_t tx_dsa_table_addr = 0x3000 + chan * 0x400;
const uint32_t rx_dsa_table_addr = 0x3800 + chan * 0x400;
auto& tx_dsa_reg = mock_reg_iface.memory[tx_dsa_table_addr];
auto& rx_dsa_reg = mock_reg_iface.memory[rx_dsa_table_addr];
// We'll skip DSA3A/B, because they work just like the rest and would
// make this test much longer and less readable without adding much test
// coverage.
for (const auto dsa :
{zbx_cpld_ctrl::dsa_type::DSA1, zbx_cpld_ctrl::dsa_type::DSA2}) {
const size_t tx_shift = (dsa == zbx_cpld_ctrl::dsa_type::DSA1) ? 0 : 8;
const size_t rx_shift = (dsa == zbx_cpld_ctrl::dsa_type::DSA1) ? 0 : 4;
// 0xB and 0xC are just random attenuation values. They are valid
// for both TX and RX.
cpld.set_tx_dsa(chan, dsa_table_index, dsa, 0xB);
BOOST_CHECK_EQUAL((tx_dsa_reg >> tx_shift) & 0x1F, 0xB);
tx_dsa_reg = 0x0C0C;
BOOST_CHECK_EQUAL(0xB, cpld.get_tx_dsa(chan, dsa_table_index, dsa, false));
BOOST_CHECK_EQUAL(0xC, cpld.get_tx_dsa(chan, dsa_table_index, dsa, true));
cpld.set_rx_dsa(chan, 0, dsa, 0xB);
BOOST_CHECK_EQUAL((rx_dsa_reg >> rx_shift) & 0xF, 0xB);
rx_dsa_reg = 0xCC;
BOOST_CHECK_EQUAL(0xB, cpld.get_rx_dsa(chan, dsa_table_index, dsa, false));
BOOST_CHECK_EQUAL(0xC, cpld.get_rx_dsa(chan, dsa_table_index, dsa, true));
}
}
}
BOOST_FIXTURE_TEST_CASE(zbx_set_from_table_test, zbx_cpld_fixture)
{
constexpr uint32_t tx_sel_addr = 0x4000;
constexpr size_t chan = 0;
constexpr uint8_t idx = 2;
auto& tx_table_select = mock_reg_iface.memory[tx_sel_addr + idx * 4];
cpld.set_tx_gain_switches(chan, idx, 23);
BOOST_REQUIRE_EQUAL(tx_table_select, 23);
}
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