usrp: added fifo_ctrl_excelsior for FIFO control + async msgs

The fifo_ctrl_excelsior is the host code for dealing with E100/B100
control messages and async messages. It also has the SPI implementation.
Timed commands are implemented on top of this code.

1 files changed, 63 insertions, 0 deletions

diff --git a/host/lib/usrp/common/fifo_ctrl_excelsior.hpp b/host/lib/usrp/common/fifo_ctrl_excelsior.hpp
new file mode 100644
index 000000000..c3ef65a2c
--- /dev/null
+++ b/host/lib/usrp/common/fifo_ctrl_excelsior.hpp
@@ -0,0 +1,63 @@
+//
+// Copyright 2012 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_B200_CTRL_HPP
+#define INCLUDED_B200_CTRL_HPP
+
+#include <uhd/types/time_spec.hpp>
+#include <uhd/types/metadata.hpp>
+#include <uhd/types/serial.hpp>
+#include <uhd/transport/zero_copy.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/utility.hpp>
+#include "wb_iface.hpp"
+#include <string>
+
+
+struct fifo_ctrl_excelsior_config
+{
+    size_t async_sid_base;
+    size_t num_async_chan;
+    size_t ctrl_sid_base;
+    size_t spi_base;
+    size_t spi_rb;
+};
+
+/*!
+ * Provide access to peek, poke, spi, and async messages.
+ */
+class fifo_ctrl_excelsior : public wb_iface, public uhd::spi_iface{
+public:
+    typedef boost::shared_ptr<fifo_ctrl_excelsior> sptr;
+
+    //! Make a new control object
+    static sptr make(
+        uhd::transport::zero_copy_if::sptr xport,
+        const fifo_ctrl_excelsior_config &config
+    );
+
+    //! Set the command time that will activate
+    virtual void set_time(const uhd::time_spec_t &time) = 0;
+
+    //! Set the tick rate (converting time into ticks)
+    virtual void set_tick_rate(const double rate) = 0;
+
+    //! Pop an async message from the queue or timeout
+    virtual bool pop_async_msg(uhd::async_metadata_t &async_metadata, double timeout) = 0;
+};
+
+#endif /* INCLUDED_B200_CTRL_HPP */