x300: Introduce conn_manager

This is a superclass to eth_manager and pcie_manager, since they usually
do the same thing. This saves storing and passing multiple pointers.
Also, x300_impl now stores a shared_ptr of the conn_manager, because
we'll need to pass it around in the future.

1 files changed, 35 insertions, 0 deletions

diff --git a/host/lib/usrp/x300/x300_conn_mgr.hpp b/host/lib/usrp/x300/x300_conn_mgr.hpp
new file mode 100644
index 000000000..8aca2eb06
--- /dev/null
+++ b/host/lib/usrp/x300/x300_conn_mgr.hpp
@@ -0,0 +1,35 @@
+//
+// Copyright 2019 Ettus Research, a National Instruments Brand
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#ifndef INCLUDED_X300_CONN_MGR_HPP
+#define INCLUDED_X300_CONN_MGR_HPP
+
+#include <uhd/transport/if_addrs.hpp>
+#include <uhd/types/direction.hpp>
+#include <uhd/types/wb_iface.hpp>
+#include <uhd/usrp/mboard_eeprom.hpp>
+#include <string>
+
+namespace uhd { namespace usrp { namespace x300 {
+
+/*! Helper base class to manage the connection to the device
+ */
+class conn_manager
+{
+public:
+    using sptr = std::shared_ptr<conn_manager>;
+    virtual ~conn_manager() {}
+
+    /*! Return a reference to a ZPU ctrl interface object
+     */
+    virtual uhd::wb_iface::sptr get_ctrl_iface() = 0;
+
+    virtual size_t get_mtu(uhd::direction_t dir) = 0;
+};
+
+}}} // namespace uhd::usrp::x300
+
+#endif /* INCLUDED_X300_CONN_MGR_HPP */