next: generalized the GPS interface to any USRP device. just give it a function to write/read strings to UART.

not sure if i'm happy with the interface; maybe inheriting is cleaner. this works though.
gps interface for usrp2 is disabled right now in mboard_impl.

2 files changed, 57 insertions, 0 deletions

diff --git a/host/include/uhd/usrp/CMakeLists.txt b/host/include/uhd/usrp/CMakeLists.txt
index c8d7281d3..f60b35e59 100644
--- a/host/include/uhd/usrp/CMakeLists.txt
+++ b/host/include/uhd/usrp/CMakeLists.txt
@@ -34,6 +34,7 @@ INSTALL(FILES
 
     ### utilities ###
     dsp_utils.hpp
+    gps_ctrl.hpp
     mboard_eeprom.hpp
     misc_utils.hpp
     subdev_spec.hpp
diff --git a/host/include/uhd/usrp/gps_ctrl.hpp b/host/include/uhd/usrp/gps_ctrl.hpp
new file mode 100644
index 000000000..74f984ee0
--- /dev/null
+++ b/host/include/uhd/usrp/gps_ctrl.hpp
@@ -0,0 +1,56 @@
+//
+// Copyright 2010 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_GPS_CTRL_HPP
+#define INCLUDED_GPS_CTRL_HPP
+
+#include <boost/shared_ptr.hpp>
+#include <boost/utility.hpp>
+#include <boost/function.hpp>
+#include <boost/date_time/posix_time/posix_time_types.hpp>
+
+using namespace boost::posix_time;
+
+typedef boost::function<void(std::string)> gps_send_fn_t;
+typedef boost::function<std::string(void)> gps_recv_fn_t;
+
+class gps_ctrl : boost::noncopyable{
+public:
+  typedef boost::shared_ptr<gps_ctrl> sptr;
+
+  /*!
+   * Make a GPS config for Jackson Labs or generic NMEA GPS devices
+   */
+  static sptr make(gps_send_fn_t, gps_recv_fn_t);
+
+  /*!
+   * Get the current GPS time and date
+   * \return current GPS time and date as boost::posix_time::ptime object
+   */
+  virtual ptime get_time(void) = 0;
+
+  /*!
+   * Tell you if there's a supported GPS connected or not
+   * \return true if a supported GPS is connected
+   */
+  virtual bool gps_detected(void) = 0;
+
+  //TODO: other fun things you can do with a GPS.
+
+};
+
+#endif /* INCLUDED_GPS_CTRL_HPP */