1 files changed, 116 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp2.cpp b/host/lib/usrp/usrp2.cpp
new file mode 100644
index 000000000..1ff363ae1
--- /dev/null
+++ b/host/lib/usrp/usrp2.cpp
@@ -0,0 +1,116 @@
+//
+// 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/>.
+//
+
+#include <uhd/usrp/usrp2.hpp>
+#include <uhd/device.hpp>
+#include <uhd/transport/udp.hpp>
+#include <boost/lexical_cast.hpp>
+#include <boost/format.hpp>
+#include <boost/thread.hpp>
+#include <netinet/in.h>
+#include "usrp2/usrp2_impl.hpp"
+
+using namespace uhd::usrp;
+
+/***********************************************************************
+ * Discovery over the udp transport
+ **********************************************************************/
+uhd::device_addrs_t usrp2::discover(const device_addr_t &hint){
+    device_addrs_t usrp2_addrs;
+
+    //create a udp transport to communicate
+    //TODO if an addr is not provided, search all interfaces?
+    std::string ctrl_port = boost::lexical_cast<std::string>(USRP2_UDP_CTRL_PORT);
+    uhd::transport::udp udp_transport(hint["addr"], ctrl_port, true);
+
+    //send a hello control packet
+    usrp2_ctrl_data_t ctrl_data_out;
+    ctrl_data_out.id = htonl(USRP2_CTRL_ID_GIVE_ME_YOUR_IP_ADDR_BRO);
+    udp_transport.send(boost::asio::buffer(&ctrl_data_out, sizeof(ctrl_data_out)));
+
+    //loop and recieve until the time is up
+    size_t num_timeouts = 0;
+    while(true){
+        uhd::shared_iovec iov = udp_transport.recv();
+        //std::cout << boost::asio::buffer_size(buff) << "\n";
+        if (iov.len < sizeof(usrp2_ctrl_data_t)){
+            //sleep a little so we dont burn cpu
+            if (num_timeouts++ > 50) break;
+            boost::this_thread::sleep(boost::posix_time::milliseconds(1));
+        }else{
+            //handle the received data
+            const usrp2_ctrl_data_t *ctrl_data_in = reinterpret_cast<const usrp2_ctrl_data_t *>(iov.base);
+            switch(ntohl(ctrl_data_in->id)){
+            case USRP2_CTRL_ID_THIS_IS_MY_IP_ADDR_DUDE:
+                //make a boost asio ipv4 with the raw addr in host byte order
+                boost::asio::ip::address_v4 ip_addr(ntohl(ctrl_data_in->data.ip_addr));
+                device_addr_t new_addr;
+                new_addr["name"] = "USRP2";
+                new_addr["type"] = "udp";
+                new_addr["addr"] = ip_addr.to_string();
+                usrp2_addrs.push_back(new_addr);
+                break;
+            }
+        }
+    }
+
+    return usrp2_addrs;
+}
+
+/***********************************************************************
+ * Structors
+ **********************************************************************/
+usrp2::usrp2(const device_addr_t &device_addr){
+    //create a control transport
+    uhd::transport::udp::sptr ctrl_transport(
+        new uhd::transport::udp(
+            device_addr["addr"],
+            boost::lexical_cast<std::string>(USRP2_UDP_CTRL_PORT)
+        )
+    );
+
+    //create a data transport
+    uhd::transport::udp::sptr data_transport(
+        new uhd::transport::udp(
+            device_addr["addr"],
+            boost::lexical_cast<std::string>(USRP2_UDP_DATA_PORT)
+        )
+    );
+
+    //create the usrp2 implementation guts
+    _impl = usrp2_impl::sptr(
+        new usrp2_impl(ctrl_transport, data_transport)
+    );
+}
+
+usrp2::~usrp2(void){
+    /* NOP */
+}
+
+/***********************************************************************
+ * Get Properties
+ **********************************************************************/
+void usrp2::get(const wax::obj &key, wax::obj &val){
+    return wax::cast<usrp2_impl::sptr>(_impl)->get(key, val);
+}
+
+/***********************************************************************
+ * Set Properties
+ **********************************************************************/
+void usrp2::set(const wax::obj &key, const wax::obj &val){
+    return wax::cast<usrp2_impl::sptr>(_impl)->set(key, val);
+}