gps: gpsd: Adding gpsd_iface to interface with gpsd.

The gpsd_iface class might be useful for more than just e3x0,
it therefore belongs into lib/usrp instead of lib/usrp/e300.

A new UHD component is being registered, to cope with the additional
dependency. If libgps is not found, UHD and E300 will be compiled
without GPS support.

This has several consequences:
- The E310 GPSDO should now work transparently over network
- Users can use the GPS through gpsd for other applications
  *while* running UHD applications
- We now have a dependency on libgps

We need currently at least version 3.11 (while running 3.14),
on the device. Older versions do work if 3.10 runs on both
sides e.g

Reviewed-by: Martin Braun <martin.braun@ettus.com>
Reviewed-by: Ashish Chaudhari <ashish.chaudhari@ettus.com>
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>

1 files changed, 0 insertions, 113 deletions

diff --git a/host/lib/usrp/e300/e300_async_serial.hpp b/host/lib/usrp/e300/e300_async_serial.hpp
deleted file mode 100644
index fafc7de3d..000000000
--- a/host/lib/usrp/e300/e300_async_serial.hpp
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright 2013-2014 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_ASYNC_SERIAL_HPP
-#define INCLUDED_ASYNC_SERIAL_HPP
-
-#include <boost/asio.hpp>
-#include <boost/bind.hpp>
-#include <boost/thread.hpp>
-#include <boost/utility.hpp>
-#include <boost/function.hpp>
-#include <boost/shared_array.hpp>
-
-namespace uhd { namespace usrp { namespace gps {
-
-class async_serial : private boost::noncopyable
-{
-public:
-    async_serial();
-    ~async_serial();
-
-    async_serial(const std::string &node, const size_t baud_rate,
-        boost::asio::serial_port_base::parity opt_parity=
-            boost::asio::serial_port_base::parity(
-                boost::asio::serial_port_base::parity::none),
-        boost::asio::serial_port_base::character_size opt_csize=
-            boost::asio::serial_port_base::character_size(8),
-        boost::asio::serial_port_base::flow_control opt_flow=
-            boost::asio::serial_port_base::flow_control(
-                boost::asio::serial_port_base::flow_control::none),
-        boost::asio::serial_port_base::stop_bits opt_stop=
-            boost::asio::serial_port_base::stop_bits(
-                boost::asio::serial_port_base::stop_bits::one));
-
-   void open(const std::string& node, const size_t baud_rate,
-        boost::asio::serial_port_base::parity opt_parity=
-            boost::asio::serial_port_base::parity(
-                boost::asio::serial_port_base::parity::none),
-        boost::asio::serial_port_base::character_size opt_csize=
-            boost::asio::serial_port_base::character_size(8),
-        boost::asio::serial_port_base::flow_control opt_flow=
-            boost::asio::serial_port_base::flow_control(
-                boost::asio::serial_port_base::flow_control::none),
-        boost::asio::serial_port_base::stop_bits opt_stop=
-            boost::asio::serial_port_base::stop_bits(
-                boost::asio::serial_port_base::stop_bits::one));
-
-   bool is_open(void) const;
-
-   bool error_status(void) const;
-
-   void close(void);
-
-   void write(const char *data, const size_t size);
-   void write(const std::vector<char> &data);
-
-   void write_string(const std::string &s);
-
-   static const size_t READ_BUFFER_SIZE=512;
-
-   void set_read_callback(
-       const boost::function<void (const char*, size_t)>& callback);
-
-   void clear_callback();
-
-private: // methods
-   void _do_read();
-
-   void _read_end(
-       const boost::system::error_code &error,
-       size_t bytes_transferred);
-
-   void _do_write();
-
-   void _write_end(const boost::system::error_code &error);
-
-   void _do_close();
-
-   void _set_error_status(const bool e);
-private: // members
-    boost::asio::io_service         _io;
-    boost::asio::serial_port        _port;
-    boost::thread                   _background_thread;
-    bool                            _open;
-    bool                            _error;
-    mutable boost::mutex            _error_mutex;
-
-    std::vector<char>              _write_queue;
-    boost::shared_array<char>      _write_buffer;
-    size_t                         _write_buffer_size;
-    boost::mutex                   _write_queue_mutex;
-    char                           _read_buffer[READ_BUFFER_SIZE];
-
-    boost::function<void (const char*, size_t)> _callback;
-};
-
-}}} // namespace
-
-#endif //INCLUDED_ASYNC_SERIAL_HPP