Added usrp2 impl for the guts of the usrp2 handling.

The top level usrp2 will contain an impl and forward calls to it.

1 files changed, 88 insertions, 0 deletions

diff --git a/lib/usrp/mboard/usrp2_impl.cpp b/lib/usrp/mboard/usrp2_impl.cpp
new file mode 100644
index 000000000..a9c58c4fe
--- /dev/null
+++ b/lib/usrp/mboard/usrp2_impl.cpp
@@ -0,0 +1,88 @@
+//
+// 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 <boost/thread.hpp>
+#include <boost/format.hpp>
+#include <uhd/utils.hpp>
+#include <iostream>
+#include "usrp2_impl.hpp"
+#include "usrp2_dboard_interface.hpp"
+
+using namespace uhd::usrp;
+
+usrp2_impl::usrp2_impl(
+    uhd::transport::udp::sptr ctrl_transport,
+    uhd::transport::udp::sptr data_transport
+){
+    _ctrl_transport = ctrl_transport;
+    _data_transport = data_transport;
+
+    //grab the dboard ids over the control line
+    usrp2_ctrl_data_t out_data;
+    out_data.id = htonl(USRP2_CTRL_ID_GIVE_ME_YOUR_DBOARD_IDS_BRO);
+    usrp2_ctrl_data_t in_data = ctrl_send_and_recv(out_data);
+    ASSERT_THROW(htonl(in_data.id) == USRP2_CTRL_ID_THESE_ARE_MY_DBOARD_IDS_DUDE);
+    std::cout << boost::format("rx id 0x%.2x, tx id 0x%.2x")
+        % ntohs(in_data.data.dboard_ids.rx_id)
+        % ntohs(in_data.data.dboard_ids.tx_id) << std::endl;
+
+    //extract the dboard ids an convert them to enums
+    dboard::dboard_id_t rx_dboard_id = static_cast<dboard::dboard_id_t>(
+        ntohs(in_data.data.dboard_ids.rx_id)
+    );
+    dboard::dboard_id_t tx_dboard_id = static_cast<dboard::dboard_id_t>(
+        ntohs(in_data.data.dboard_ids.tx_id)
+    );
+
+    //create a new dboard interface and manager
+    _dboard_interface = dboard::interface::sptr(
+        new usrp2_dboard_interface(this)
+    );
+    _dboard_manager = dboard::manager::sptr(
+        new dboard::manager(rx_dboard_id, tx_dboard_id, _dboard_interface)
+    );
+}
+
+usrp2_impl::~usrp2_impl(void){
+    /* NOP */
+}
+
+usrp2_ctrl_data_t usrp2_impl::ctrl_send_and_recv(const usrp2_ctrl_data_t &out_data){
+    //fill in the seq number and send
+    usrp2_ctrl_data_t out_copy = out_data;
+    out_copy.seq = htonl(++_ctrl_seq_num);
+    _ctrl_transport->send(boost::asio::buffer(&out_copy, sizeof(usrp2_ctrl_data_t)));
+
+    //loop and recieve until the time is up
+    size_t num_timeouts = 0;
+    while(true){
+        uhd::shared_iovec iov = _ctrl_transport->recv();
+        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
+            usrp2_ctrl_data_t in_data = *reinterpret_cast<const usrp2_ctrl_data_t *>(iov.base);
+            if (ntohl(in_data.seq) == _ctrl_seq_num){
+                return in_data;
+            }
+            //didnt get seq, continue on...
+        }
+    }
+    throw std::runtime_error("usrp2 no control response");
+}