rfnoc: Add DDC block controller

2 files changed, 76 insertions, 0 deletions

diff --git a/host/tests/CMakeLists.txt b/host/tests/CMakeLists.txt
index 88b673bb1..c918cc6bb 100644
--- a/host/tests/CMakeLists.txt
+++ b/host/tests/CMakeLists.txt
@@ -241,6 +241,16 @@ UHD_ADD_NONAPI_TEST(
     ${CMAKE_SOURCE_DIR}/lib/rfnoc/client_zero.cpp
 )
 
+UHD_ADD_NONAPI_TEST(
+    TARGET rfnoc_blocks_test.cpp
+    EXTRA_SOURCES
+    ${CMAKE_SOURCE_DIR}/lib/rfnoc/noc_block_base.cpp
+    ${CMAKE_SOURCE_DIR}/lib/rfnoc/block_id.cpp
+    ${CMAKE_SOURCE_DIR}/lib/utils/compat_check.cpp
+    ${CMAKE_SOURCE_DIR}/lib/rfnoc/ddc_block_control.cpp
+    ${CMAKE_SOURCE_DIR}/lib/usrp/cores/dsp_core_utils.cpp
+)
+
 ########################################################################
 # demo of a loadable module
 ########################################################################
diff --git a/host/tests/rfnoc_blocks_test.cpp b/host/tests/rfnoc_blocks_test.cpp
new file mode 100644
index 000000000..b9ffcb5f9
--- /dev/null
+++ b/host/tests/rfnoc_blocks_test.cpp
@@ -0,0 +1,66 @@
+//
+// Copyright 2019 Ettus Research, a National Instruments Brand
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#include "rfnoc_mock_reg_iface.hpp"
+#include <uhd/rfnoc/ddc_block_control.hpp>
+#include <uhdlib/rfnoc/clock_iface.hpp>
+#include <uhdlib/rfnoc/node_accessor.hpp>
+#include <boost/test/unit_test.hpp>
+#include <iostream>
+
+using namespace uhd::rfnoc;
+
+namespace {
+
+noc_block_base::make_args_ptr make_make_args(noc_block_base::noc_id_t noc_id,
+    const std::string& block_id,
+    const size_t n_inputs,
+    const size_t n_outputs)
+{
+    auto make_args              = std::make_unique<noc_block_base::make_args_t>();
+    make_args->noc_id           = noc_id;
+    make_args->num_input_ports  = n_inputs;
+    make_args->num_output_ports = n_outputs;
+    make_args->reg_iface        = std::make_shared<mock_reg_iface_t>();
+    make_args->block_id         = block_id;
+    make_args->clk_iface        = std::make_shared<clock_iface>("MOCK_CLOCK");
+    make_args->tree             = uhd::property_tree::make();
+    return make_args;
+}
+
+} // namespace
+
+#define MOCK_REGISTER(BLOCK_NAME)                       \
+    uhd::rfnoc::noc_block_base::sptr BLOCK_NAME##_make( \
+        uhd::rfnoc::noc_block_base::make_args_ptr make_args);
+
+MOCK_REGISTER(ddc_block_control)
+
+BOOST_AUTO_TEST_CASE(test_ddc_block)
+{
+    node_accessor_t node_accessor{};
+    constexpr uint32_t num_hb                      = 2;
+    constexpr uint32_t max_cic                     = 128;
+    constexpr size_t num_chans                     = 4;
+    constexpr noc_block_base::noc_id_t mock_noc_id = 0x7E57DDC0;
+
+    auto ddc_make_args = make_make_args(mock_noc_id, "0/DDC#0", num_chans, num_chans);
+    auto ddc_reg_iface = std::dynamic_pointer_cast<mock_reg_iface_t>(ddc_make_args->reg_iface);
+    ddc_reg_iface->read_memory[ddc_block_control::RB_COMPAT_NUM] =
+        (ddc_block_control::MAJOR_COMPAT << 16) | ddc_block_control::MINOR_COMPAT;
+    ddc_reg_iface->read_memory[ddc_block_control::RB_NUM_HB]        = num_hb;
+    ddc_reg_iface->read_memory[ddc_block_control::RB_CIC_MAX_DECIM] = max_cic;
+    auto test_ddc = ddc_block_control_make(std::move(ddc_make_args));
+
+    node_accessor.init_props(test_ddc.get());
+    UHD_LOG_DEBUG("TEST", "Init done.");
+    test_ddc->set_property<int>("decim", 4, 0);
+
+    BOOST_REQUIRE(ddc_reg_iface->write_memory.count(ddc_block_control::SR_DECIM_ADDR));
+    BOOST_CHECK_EQUAL(
+        ddc_reg_iface->write_memory.at(ddc_block_control::SR_DECIM_ADDR), 2 << 8 | 1);
+}
+