1 files changed, 79 insertions, 0 deletions
diff --git a/host/lib/include/uhdlib/rfnoc/rx_stream_terminator.hpp b/host/lib/include/uhdlib/rfnoc/rx_stream_terminator.hpp
new file mode 100644
index 000000000..3f82ab12f
--- /dev/null
+++ b/host/lib/include/uhdlib/rfnoc/rx_stream_terminator.hpp
@@ -0,0 +1,79 @@
+//
+// Copyright 2014 Ettus Research LLC
+// Copyright 2018 Ettus Research, a National Instruments Company
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#ifndef INCLUDED_LIBUHD_RFNOC_TERMINATOR_RECV_HPP
+#define INCLUDED_LIBUHD_RFNOC_TERMINATOR_RECV_HPP
+
+#include <uhd/rfnoc/sink_node_ctrl.hpp>
+#include <uhd/rfnoc/rate_node_ctrl.hpp>
+#include <uhd/rfnoc/tick_node_ctrl.hpp>
+#include <uhd/rfnoc/scalar_node_ctrl.hpp>
+#include <uhd/rfnoc/terminator_node_ctrl.hpp>
+#include <uhd/rfnoc/block_ctrl_base.hpp> // For the block macros
+#include <mutex>
+
+namespace uhd {
+    namespace rfnoc {
+
+/*! \brief Terminator node for Rx streamers.
+ *
+ * This node is only used by rx_streamers. It terminates the flow graph
+ * inside the streamer and does not have a counterpart on the FPGA.
+ */
+class rx_stream_terminator :
+    public sink_node_ctrl,
+    public rate_node_ctrl,
+    public tick_node_ctrl,
+    public scalar_node_ctrl,
+    public terminator_node_ctrl
+{
+public:
+    UHD_RFNOC_BLOCK_OBJECT(rx_stream_terminator)
+
+    static sptr make()
+    {
+        return sptr(new rx_stream_terminator);
+    }
+
+    // If this is called, then by a send terminator at the other end
+    // of a flow graph.
+    double get_input_samp_rate(size_t) { return _samp_rate; };
+
+    // Same for the scaling factor
+    double get_input_scale_factor(size_t) { return scalar_node_ctrl::SCALE_UNDEFINED; };
+
+    std::string unique_id() const;
+
+    void set_rx_streamer(bool active, const size_t port);
+
+    void set_tx_streamer(bool active, const size_t port);
+
+    virtual ~rx_stream_terminator();
+
+    void handle_overrun(boost::weak_ptr<uhd::rx_streamer>, const size_t);
+
+protected:
+    rx_stream_terminator();
+
+    virtual double _get_tick_rate() { return _tick_rate; };
+
+private:
+    //! Every terminator has a unique index
+    const size_t _term_index;
+    static size_t _count;
+
+    double _samp_rate;
+    double _tick_rate;
+
+    std::mutex _overrun_handler_mutex;
+
+}; /* class rx_stream_terminator */
+
+}} /* namespace uhd::rfnoc */
+
+#endif /* INCLUDED_LIBUHD_RFNOC_TERMINATOR_RECV_HPP */
+// vim: sw=4 et: