rfnoc: Add Switchboard block support

1 files changed, 48 insertions, 0 deletions

diff --git a/host/include/uhd/rfnoc/switchboard_block_control.hpp b/host/include/uhd/rfnoc/switchboard_block_control.hpp
new file mode 100644
index 000000000..0b0b4c722
--- /dev/null
+++ b/host/include/uhd/rfnoc/switchboard_block_control.hpp
@@ -0,0 +1,48 @@
+//
+// Copyright 2020 Ettus Research, a National Instruments Brand
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#pragma once
+
+#include <uhd/config.hpp>
+#include <uhd/rfnoc/noc_block_base.hpp>
+
+namespace uhd { namespace rfnoc {
+
+/*! Switchboard Block Control Class
+ *
+ * The Switchboard Block is an RFNoC block that routes any single input to any
+ * single output. Routing is 1 to 1, that is, an input port can only be connected 
+ * to one output port, and vice versa.
+ *
+ * INIT: This block is initialized with only input port 0 connected to output 
+ *       port 0.
+ *
+ * NOTE: This block is not intended to switch during the transmission of packets.
+ *       Data on disconnected inputs will stall.
+ */
+class UHD_API switchboard_block_control : public noc_block_base
+{
+public:
+    RFNOC_DECLARE_BLOCK(switchboard_block_control)
+
+    // Block registers
+    static const uint32_t REG_BLOCK_SIZE;
+
+    static const uint32_t REG_DEMUX_SELECT_ADDR;
+    static const uint32_t REG_MUX_SELECT_ADDR;
+
+    /*! Connects an input to an output
+     *
+     * Bridges an input to an output. Any existing connections on
+     * either the input or output will be dropped.
+     *
+     * \param input Index of the input port.
+     * \param output Index of the output port.
+     */
+    virtual void connect(const size_t input, const size_t output) = 0;
+};
+
+}} // namespace uhd::rfnoc