1 files changed, 93 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp_e/dsp_impl.cpp b/host/lib/usrp/usrp_e/dsp_impl.cpp
new file mode 100644
index 000000000..e61f529ab
--- /dev/null
+++ b/host/lib/usrp/usrp_e/dsp_impl.cpp
@@ -0,0 +1,93 @@
+//
+// 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/bind.hpp>
+#include "usrp_e_impl.hpp"
+
+using namespace uhd::usrp;
+
+/***********************************************************************
+ * Helper Functions
+ **********************************************************************/
+// Check if requested decim/interp rate is:
+//      multiple of 4, enable two halfband filters
+//      multiple of 2, enable one halfband filter
+//      handle remainder in CIC
+static boost::uint32_t calculate_cic_word(size_t rate){
+    int hb0 = 0, hb1 = 0;
+    if (not (rate & 0x1)){
+        hb0 = 1;
+        rate /= 2;
+    }
+    if (not (rate & 0x1)){
+        hb1 = 1;
+        rate /= 2;
+    }
+    return (hb1 << 9) | (hb0 << 8) | (rate & 0xff);
+}
+
+static boost::uint32_t calculate_iq_scale_word(boost::int16_t i, boost::int16_t q){
+    return (boost::uint16_t(i) << 16) | (boost::uint16_t(q) << 0);
+}
+
+/***********************************************************************
+ * RX DDC Initialization
+ **********************************************************************/
+void usrp_e_impl::rx_ddc_init(void){
+    _rx_ddc_proxy = wax_obj_proxy::make(
+        boost::bind(&usrp_e_impl::rx_ddc_get, this, _1, _2),
+        boost::bind(&usrp_e_impl::rx_ddc_set, this, _1, _2)
+    );
+}
+
+/***********************************************************************
+ * RX DDC Get
+ **********************************************************************/
+void usrp_e_impl::rx_ddc_get(const wax::obj &, wax::obj &){
+    UHD_THROW_PROP_GET_ERROR();
+}
+
+/***********************************************************************
+ * RX DDC Set
+ **********************************************************************/
+void usrp_e_impl::rx_ddc_set(const wax::obj &, const wax::obj &){
+    UHD_THROW_PROP_SET_ERROR();
+}
+
+/***********************************************************************
+ * TX DUC Initialization
+ **********************************************************************/
+void usrp_e_impl::tx_duc_init(void){
+    _tx_duc_proxy = wax_obj_proxy::make(
+        boost::bind(&usrp_e_impl::tx_duc_get, this, _1, _2),
+        boost::bind(&usrp_e_impl::tx_duc_set, this, _1, _2)
+    );
+}
+
+/***********************************************************************
+ * TX DUC Get
+ **********************************************************************/
+void usrp_e_impl::tx_duc_get(const wax::obj &, wax::obj &){
+    UHD_THROW_PROP_GET_ERROR();
+}
+
+/***********************************************************************
+ * TX DUC Set
+ **********************************************************************/
+void usrp_e_impl::tx_duc_set(const wax::obj &, const wax::obj &){
+    UHD_THROW_PROP_SET_ERROR();
+}