usrp: support for multiple dsps in props and implemented in usrp1

usrp1 previously had 1 rx and 1 tx dsp with multiple freq params,
it now has N and M dsps each with one freq param.
This is more consistent with the multi-dsp model.
The hack here is to only apply stream commands and sample rate changes to dsp0.

8 files changed, 92 insertions, 120 deletions

diff --git a/host/include/uhd/usrp/multi_usrp.hpp b/host/include/uhd/usrp/multi_usrp.hpp
index e2b26f5fb..b06975b6c 100644
--- a/host/include/uhd/usrp/multi_usrp.hpp
+++ b/host/include/uhd/usrp/multi_usrp.hpp
@@ -497,7 +497,7 @@ public:
      * \param chan the channel index 0 to N-1
      * \return the rate in Sps
      */
-    virtual double get_tx_rate(size_t chan) = 0;
+    virtual double get_tx_rate(size_t chan = 0) = 0;
 
     /*!
      * Set the TX center frequency.
diff --git a/host/include/uhd/usrp/tune_helper.hpp b/host/include/uhd/usrp/tune_helper.hpp
index db12241c1..e97ab0298 100644
--- a/host/include/uhd/usrp/tune_helper.hpp
+++ b/host/include/uhd/usrp/tune_helper.hpp
@@ -32,24 +32,21 @@ namespace uhd{ namespace usrp{
      * The ddc cordic is setup to bring the IF down to baseband.
      * \param subdev the dboard subdevice object with properties
      * \param ddc the mboard dsp object with properties
-     * \param chan the channel of the dsp to tune
      * \param tune_request tune request instructions
      * \return a tune result struct
      */
     UHD_API tune_result_t tune_rx_subdev_and_dsp(
-        wax::obj subdev, wax::obj ddc, size_t chan,
-        const tune_request_t &tune_request
+        wax::obj subdev, wax::obj ddc, const tune_request_t &tune_request
     );
 
     /*!
      * Calculate the overall frequency from the combination of dboard IF and DDC shift.
      * \param subdev the dboard subdevice object with properties
      * \param ddc the mboard dsp object with properties
-     * \param chan the channel of the dsp to tune
      * \return the overall tune frequency of the system in Hz
      */
     UHD_API double derive_freq_from_rx_subdev_and_dsp(
-        wax::obj subdev, wax::obj ddc, size_t chan
+        wax::obj subdev, wax::obj ddc
     );
 
     /*!
@@ -59,24 +56,21 @@ namespace uhd{ namespace usrp{
      * The duc cordic is setup to bring the baseband up to IF.
      * \param subdev the dboard subdevice object with properties
      * \param duc the mboard dsp object with properties
-     * \param chan the channel of the dsp to tune
      * \param tune_request tune request instructions
      * \return a tune result struct
      */
     UHD_API tune_result_t tune_tx_subdev_and_dsp(
-        wax::obj subdev, wax::obj duc, size_t chan,
-        const tune_request_t &tune_request
+        wax::obj subdev, wax::obj duc, const tune_request_t &tune_request
     );
 
     /*!
      * Calculate the overall frequency from the combination of dboard IF and DUC shift.
      * \param subdev the dboard subdevice object with properties
      * \param duc the mboard dsp object with properties
-     * \param chan the channel of the dsp to tune
      * \return the overall tune frequency of the system in Hz
      */
     UHD_API double derive_freq_from_tx_subdev_and_dsp(
-        wax::obj subdev, wax::obj duc, size_t chan
+        wax::obj subdev, wax::obj duc
     );
 
 }}
diff --git a/host/lib/usrp/multi_usrp.cpp b/host/lib/usrp/multi_usrp.cpp
index 5130d3ae8..2e38a9ff8 100644
--- a/host/lib/usrp/multi_usrp.cpp
+++ b/host/lib/usrp/multi_usrp.cpp
@@ -193,7 +193,7 @@ public:
             _rx_dsp(chan)[DSP_PROP_STREAM_CMD] = stream_cmd;
             return;
         }
-        for (size_t c = 0; m < get_rx_num_channels(); m++){
+        for (size_t c = 0; c < get_rx_num_channels(); c++){
             issue_stream_cmd(stream_cmd, c);
         }
     }
@@ -245,13 +245,13 @@ public:
         return _rx_subdev(chan)[SUBDEV_PROP_NAME].as<std::string>();
     }
 
-    void set_rx_rate(double rate){
+    void set_rx_rate(double rate, size_t chan){
         if (chan != ALL_CHANS){
             _rx_dsp(chan)[DSP_PROP_HOST_RATE] = rate;
             do_samp_rate_warning_message(rate, get_rx_rate(chan), "RX");
             return;
         }
-        for (size_t c = 0; m < get_rx_num_channels(); m++){
+        for (size_t c = 0; c < get_rx_num_channels(); c++){
             set_rx_rate(rate, c);
         }
     }
@@ -261,13 +261,13 @@ public:
     }
 
     tune_result_t set_rx_freq(const tune_request_t &tune_request, size_t chan){
-        tune_result_t r = tune_rx_subdev_and_dsp(_rx_subdev(chan), _rx_dsp(chan), chan%rx_cpm(), tune_request);
+        tune_result_t r = tune_rx_subdev_and_dsp(_rx_subdev(chan), _rx_dsp(chan), tune_request);
         do_tune_freq_warning_message(tune_request.target_freq, get_rx_freq(chan), "RX");
         return r;
     }
 
     double get_rx_freq(size_t chan){
-        return derive_freq_from_rx_subdev_and_dsp(_rx_subdev(chan), _rx_dsp(chan), chan%rx_cpm());
+        return derive_freq_from_rx_subdev_and_dsp(_rx_subdev(chan), _rx_dsp(chan));
     }
 
     freq_range_t get_rx_freq_range(size_t chan){
@@ -347,13 +347,13 @@ public:
         return tx_cpm()*get_num_mboards(); //total num channels
     }
 
-    void set_tx_rate(double rate){
+    void set_tx_rate(double rate, size_t chan){
         if (chan != ALL_CHANS){
             _tx_dsp(chan)[DSP_PROP_HOST_RATE] = rate;
             do_samp_rate_warning_message(rate, get_tx_rate(chan), "TX");
             return;
         }
-        for (size_t c = 0; m < get_tx_num_channels(); m++){
+        for (size_t c = 0; c < get_tx_num_channels(); c++){
             set_tx_rate(rate, c);
         }
     }
@@ -363,13 +363,13 @@ public:
     }
 
     tune_result_t set_tx_freq(const tune_request_t &tune_request, size_t chan){
-        tune_result_t r = tune_tx_subdev_and_dsp(_tx_subdev(chan), _tx_dsp(chan), chan%tx_cpm(), tune_request);
+        tune_result_t r = tune_tx_subdev_and_dsp(_tx_subdev(chan), _tx_dsp(chan), tune_request);
         do_tune_freq_warning_message(tune_request.target_freq, get_tx_freq(chan), "TX");
         return r;
     }
 
     double get_tx_freq(size_t chan){
-        return derive_freq_from_tx_subdev_and_dsp(_tx_subdev(chan), _tx_dsp(chan), chan%tx_cpm());
+        return derive_freq_from_tx_subdev_and_dsp(_tx_subdev(chan), _tx_dsp(chan));
     }
 
     freq_range_t get_tx_freq_range(size_t chan){
@@ -453,11 +453,11 @@ private:
     }
     wax::obj _rx_dsp(size_t chan){
         prop_names_t dsp_names = _mboard(chan/rx_cpm())[MBOARD_PROP_RX_DSP_NAMES].as<prop_names_t>();
-        return _mboard(chan/rx_cpm())[named_prop_t(MBOARD_PROP_RX_DSP, dsp_names.at(chan%rx_cpm())];
+        return _mboard(chan/rx_cpm())[named_prop_t(MBOARD_PROP_RX_DSP, dsp_names.at(chan%rx_cpm()))];
     }
     wax::obj _tx_dsp(size_t chan){
         prop_names_t dsp_names = _mboard(chan/tx_cpm())[MBOARD_PROP_TX_DSP_NAMES].as<prop_names_t>();
-        return _mboard(chan/tx_cpm())[named_prop_t(MBOARD_PROP_TX_DSP, dsp_names.at(chan%tx_cpm())];
+        return _mboard(chan/tx_cpm())[named_prop_t(MBOARD_PROP_TX_DSP, dsp_names.at(chan%tx_cpm()))];
     }
     wax::obj _rx_dboard(size_t chan){
         std::string db_name = get_rx_subdev_spec(chan/rx_cpm()).at(chan%rx_cpm()).db_name;
diff --git a/host/lib/usrp/tune_helper.cpp b/host/lib/usrp/tune_helper.cpp
index eccee7f4b..ced80c187 100644
--- a/host/lib/usrp/tune_helper.cpp
+++ b/host/lib/usrp/tune_helper.cpp
@@ -30,12 +30,11 @@ using namespace uhd::usrp;
  **********************************************************************/
 static tune_result_t tune_xx_subdev_and_dsp(
     dboard_iface::unit_t unit,
-    wax::obj subdev, wax::obj dsp, size_t chan,
+    wax::obj subdev, wax::obj dsp,
     const tune_request_t &tune_request
 ){
     wax::obj subdev_freq_proxy = subdev[SUBDEV_PROP_FREQ];
-    std::string freq_name = dsp[DSP_PROP_FREQ_SHIFT_NAMES].as<prop_names_t>().at(chan);
-    wax::obj dsp_freq_proxy = dsp[named_prop_t(DSP_PROP_FREQ_SHIFT, freq_name)];
+    wax::obj dsp_freq_proxy = dsp[DSP_PROP_FREQ_SHIFT];
 
     //------------------------------------------------------------------
     //-- calculate the LO offset, only used with automatic policy
@@ -105,13 +104,11 @@ static tune_result_t tune_xx_subdev_and_dsp(
 }
 
 static double derive_freq_from_xx_subdev_and_dsp(
-    dboard_iface::unit_t unit,
-    wax::obj subdev, wax::obj dsp, size_t chan
+    dboard_iface::unit_t unit, wax::obj subdev, wax::obj dsp
 ){
     //extract actual dsp and IF frequencies
     double actual_inter_freq = subdev[SUBDEV_PROP_FREQ].as<double>();
-    std::string freq_name = dsp[DSP_PROP_FREQ_SHIFT_NAMES].as<prop_names_t>().at(chan);
-    double actual_dsp_freq = dsp[named_prop_t(DSP_PROP_FREQ_SHIFT, freq_name)].as<double>();
+    double actual_dsp_freq = dsp[DSP_PROP_FREQ_SHIFT].as<double>();
 
     //invert the sign on the dsp freq given the following conditions
     if (unit == dboard_iface::UNIT_TX) actual_dsp_freq *= -1.0;
@@ -123,30 +120,28 @@ static double derive_freq_from_xx_subdev_and_dsp(
  * RX Tune
  **********************************************************************/
 tune_result_t usrp::tune_rx_subdev_and_dsp(
-    wax::obj subdev, wax::obj ddc, size_t chan,
-    const tune_request_t &tune_request
+    wax::obj subdev, wax::obj ddc, const tune_request_t &tune_request
 ){
-    return tune_xx_subdev_and_dsp(dboard_iface::UNIT_RX, subdev, ddc, chan, tune_request);
+    return tune_xx_subdev_and_dsp(dboard_iface::UNIT_RX, subdev, ddc, tune_request);
 }
 
 double usrp::derive_freq_from_rx_subdev_and_dsp(
-    wax::obj subdev, wax::obj ddc, size_t chan
+    wax::obj subdev, wax::obj ddc
 ){
-    return derive_freq_from_xx_subdev_and_dsp(dboard_iface::UNIT_RX, subdev, ddc, chan);
+    return derive_freq_from_xx_subdev_and_dsp(dboard_iface::UNIT_RX, subdev, ddc);
 }
 
 /***********************************************************************
  * TX Tune
  **********************************************************************/
 tune_result_t usrp::tune_tx_subdev_and_dsp(
-    wax::obj subdev, wax::obj duc, size_t chan,
-    const tune_request_t &tune_request
+    wax::obj subdev, wax::obj duc, const tune_request_t &tune_request
 ){
-    return tune_xx_subdev_and_dsp(dboard_iface::UNIT_TX, subdev, duc, chan, tune_request);
+    return tune_xx_subdev_and_dsp(dboard_iface::UNIT_TX, subdev, duc, tune_request);
 }
 
 double usrp::derive_freq_from_tx_subdev_and_dsp(
-    wax::obj subdev, wax::obj duc, size_t chan
+    wax::obj subdev, wax::obj duc
 ){
-    return derive_freq_from_xx_subdev_and_dsp(dboard_iface::UNIT_TX, subdev, duc, chan);
+    return derive_freq_from_xx_subdev_and_dsp(dboard_iface::UNIT_TX, subdev, duc);
 }
diff --git a/host/lib/usrp/usrp1/dsp_impl.cpp b/host/lib/usrp/usrp1/dsp_impl.cpp
index 370f4831f..9d6aca874 100644
--- a/host/lib/usrp/usrp1/dsp_impl.cpp
+++ b/host/lib/usrp/usrp1/dsp_impl.cpp
@@ -34,23 +34,25 @@ using namespace uhd::usrp;
  **********************************************************************/
 void usrp1_impl::rx_dsp_init(void)
 {
-    _rx_dsp_proxy = wax_obj_proxy::make(
-        boost::bind(&usrp1_impl::rx_dsp_get, this, _1, _2),
-        boost::bind(&usrp1_impl::rx_dsp_set, this, _1, _2));
-
-    rx_dsp_set(DSP_PROP_HOST_RATE, _clock_ctrl->get_master_clock_freq() / 16);
+    for (size_t i = 0; i < this->get_num_ddcs(); i++){
+        _rx_dsp_proxies[str(boost::format("dsp%d")%i)] = wax_obj_proxy::make(
+            boost::bind(&usrp1_impl::rx_dsp_get, this, _1, _2, i),
+            boost::bind(&usrp1_impl::rx_dsp_set, this, _1, _2, i)
+        );
+        rx_dsp_set(DSP_PROP_HOST_RATE, _clock_ctrl->get_master_clock_freq() / 16, i);
+    }
 }
 
 /***********************************************************************
  * RX DDC Get
  **********************************************************************/
-void usrp1_impl::rx_dsp_get(const wax::obj &key_, wax::obj &val){
+void usrp1_impl::rx_dsp_get(const wax::obj &key_, wax::obj &val, size_t which_dsp){
     named_prop_t key = named_prop_t::extract(key_);
 
     switch(key.as<dsp_prop_t>()){
     case DSP_PROP_NAME:
-        val = str(boost::format("usrp1 ddc %uX %s")
-            % this->get_num_ddcs()
+        val = str(boost::format("usrp1 ddc%d %s")
+            % which_dsp
             % (this->has_rx_halfband()? "+ hb" : "")
         );
         return;
@@ -60,16 +62,7 @@ void usrp1_impl::rx_dsp_get(const wax::obj &key_, wax::obj &val){
         return;
 
     case DSP_PROP_FREQ_SHIFT:
-        val = _rx_dsp_freqs[key.name];
-        return;
-
-    case DSP_PROP_FREQ_SHIFT_NAMES:{
-            prop_names_t names;
-            for(size_t i = 0; i < this->get_num_ddcs(); i++){
-                names.push_back(boost::lexical_cast<std::string>(i));
-            }
-            val = names;
-        }
+        val = _rx_dsp_freqs[which_dsp];
         return;
 
     case DSP_PROP_CODEC_RATE:
@@ -88,7 +81,7 @@ void usrp1_impl::rx_dsp_get(const wax::obj &key_, wax::obj &val){
 /***********************************************************************
  * RX DDC Set
  **********************************************************************/
-void usrp1_impl::rx_dsp_set(const wax::obj &key_, const wax::obj &val){
+void usrp1_impl::rx_dsp_set(const wax::obj &key_, const wax::obj &val, size_t which_dsp){
     named_prop_t key = named_prop_t::extract(key_);
 
     switch(key.as<dsp_prop_t>()) {
@@ -97,16 +90,17 @@ void usrp1_impl::rx_dsp_set(const wax::obj &key_, const wax::obj &val){
             boost::uint32_t reg_word = dsp_type1::calc_cordic_word_and_update(
                 new_freq, _clock_ctrl->get_master_clock_freq());
 
-            static const uhd::dict<std::string, boost::uint32_t>
-            freq_name_to_reg_val = boost::assign::map_list_of
-                ("0", FR_RX_FREQ_0) ("1", FR_RX_FREQ_1)
-                ("2", FR_RX_FREQ_2) ("3", FR_RX_FREQ_3)
-            ;
-            _iface->poke32(freq_name_to_reg_val[key.name], ~reg_word + 1);
-            _rx_dsp_freqs[key.name] = new_freq;
+            static const boost::uint32_t dsp_index_to_reg_val[4] = {
+                FR_RX_FREQ_0, FR_RX_FREQ_1, FR_RX_FREQ_2, FR_RX_FREQ_3
+            };
+            _iface->poke32(dsp_index_to_reg_val[which_dsp], ~reg_word + 1);
+            _rx_dsp_freqs[which_dsp] = new_freq;
             return;
         }
-    case DSP_PROP_HOST_RATE: {
+
+    case DSP_PROP_HOST_RATE:
+        if (which_dsp != 0) return; //only for dsp[0] as this is vectorized
+        {
             size_t rate = size_t(_clock_ctrl->get_master_clock_freq() / val.as<double>());
 
             if ((rate & 0x01) || (rate < 4) || (rate > 256)) {
@@ -123,6 +117,11 @@ void usrp1_impl::rx_dsp_set(const wax::obj &key_, const wax::obj &val){
         }
         return;
 
+    case DSP_PROP_STREAM_CMD:
+        if (which_dsp != 0) return; //only for dsp[0] as this is vectorized
+        _soft_time_ctrl->issue_stream_cmd(val.as<stream_cmd_t>());
+        return;
+
     default: UHD_THROW_PROP_SET_ERROR();
     }
 
@@ -133,24 +132,25 @@ void usrp1_impl::rx_dsp_set(const wax::obj &key_, const wax::obj &val){
  **********************************************************************/
 void usrp1_impl::tx_dsp_init(void)
 {
-    _tx_dsp_proxy = wax_obj_proxy::make(
-                          boost::bind(&usrp1_impl::tx_dsp_get, this, _1, _2),
-                          boost::bind(&usrp1_impl::tx_dsp_set, this, _1, _2));
-
-    //initial config and update
-    tx_dsp_set(DSP_PROP_HOST_RATE, _clock_ctrl->get_master_clock_freq() * 2 / 16);
+    for (size_t i = 0; i < this->get_num_ducs(); i++){
+        _tx_dsp_proxies[str(boost::format("dsp%d")%i)] = wax_obj_proxy::make(
+            boost::bind(&usrp1_impl::tx_dsp_get, this, _1, _2, i),
+            boost::bind(&usrp1_impl::tx_dsp_set, this, _1, _2, i)
+        );
+        tx_dsp_set(DSP_PROP_HOST_RATE, _clock_ctrl->get_master_clock_freq() / 16, i);
+    }
 }
 
 /***********************************************************************
  * TX DUC Get
  **********************************************************************/
-void usrp1_impl::tx_dsp_get(const wax::obj &key_, wax::obj &val){
+void usrp1_impl::tx_dsp_get(const wax::obj &key_, wax::obj &val, size_t which_dsp){
     named_prop_t key = named_prop_t::extract(key_);
 
     switch(key.as<dsp_prop_t>()) {
     case DSP_PROP_NAME:
-        val = str(boost::format("usrp1 duc %uX %s")
-            % this->get_num_ducs()
+        val = str(boost::format("usrp1 duc%d %s")
+            % which_dsp
             % (this->has_tx_halfband()? "+ hb" : "")
         );
         return;
@@ -160,16 +160,7 @@ void usrp1_impl::tx_dsp_get(const wax::obj &key_, wax::obj &val){
         return;
 
     case DSP_PROP_FREQ_SHIFT:
-        val = _tx_dsp_freqs[key.name];
-        return;
-
-    case DSP_PROP_FREQ_SHIFT_NAMES:{
-            prop_names_t names;
-            for(size_t i = 0; i < this->get_num_ducs(); i++){
-                names.push_back(boost::lexical_cast<std::string>(i));
-            }
-            val = names;
-        }
+        val = _tx_dsp_freqs[which_dsp];
         return;
 
     case DSP_PROP_CODEC_RATE:
@@ -188,7 +179,7 @@ void usrp1_impl::tx_dsp_get(const wax::obj &key_, wax::obj &val){
 /***********************************************************************
  * TX DUC Set
  **********************************************************************/
-void usrp1_impl::tx_dsp_set(const wax::obj &key_, const wax::obj &val){
+void usrp1_impl::tx_dsp_set(const wax::obj &key_, const wax::obj &val, size_t which_dsp){
     named_prop_t key = named_prop_t::extract(key_);
 
     switch(key.as<dsp_prop_t>()) {
@@ -197,15 +188,17 @@ void usrp1_impl::tx_dsp_set(const wax::obj &key_, const wax::obj &val){
             double new_freq = val.as<double>();
 
             //map the freq shift key to a subdev spec to a particular codec chip
-            std::string db_name = _tx_subdev_spec.at(boost::lexical_cast<size_t>(key.name)).db_name;
+            std::string db_name = _tx_subdev_spec.at(which_dsp).db_name;
             if (db_name == "A") _codec_ctrls[DBOARD_SLOT_A]->set_duc_freq(new_freq);
             if (db_name == "B") _codec_ctrls[DBOARD_SLOT_B]->set_duc_freq(new_freq);
 
-            _tx_dsp_freqs[key.name] = new_freq;
+            _tx_dsp_freqs[which_dsp] = new_freq;
             return;
         }
 
-    case DSP_PROP_HOST_RATE: {
+    case DSP_PROP_HOST_RATE:
+        if (which_dsp != 0) return; //only for dsp[0] as this is vectorized
+        {
             size_t rate = size_t(_clock_ctrl->get_master_clock_freq() * 2 / val.as<double>());
 
             if ((rate & 0x01) || (rate < 8) || (rate > 512)) {
diff --git a/host/lib/usrp/usrp1/mboard_impl.cpp b/host/lib/usrp/usrp1/mboard_impl.cpp
index 6d5bf466d..26d3e41d4 100644
--- a/host/lib/usrp/usrp1/mboard_impl.cpp
+++ b/host/lib/usrp/usrp1/mboard_impl.cpp
@@ -280,21 +280,19 @@ void usrp1_impl::mboard_get(const wax::obj &key_, wax::obj &val)
         return;
 
     case MBOARD_PROP_RX_DSP:
-        UHD_ASSERT_THROW(key.name == "");
-        val = _rx_dsp_proxy->get_link();
+        val = _rx_dsp_proxies.get(key.name)->get_link();
         return;
 
     case MBOARD_PROP_RX_DSP_NAMES:
-        val = prop_names_t(1, "");
+        val = _rx_dsp_proxies.keys();
         return;
 
     case MBOARD_PROP_TX_DSP:
-        UHD_ASSERT_THROW(key.name == "");
-        val = _tx_dsp_proxy->get_link();
+        val = _tx_dsp_proxies.get(key.name)->get_link();
         return;
 
     case MBOARD_PROP_TX_DSP_NAMES:
-        val = prop_names_t(1, "");
+        val = _tx_dsp_proxies.keys();
         return;
 
     case MBOARD_PROP_CLOCK_CONFIG:
@@ -342,10 +340,6 @@ void usrp1_impl::mboard_set(const wax::obj &key, const wax::obj &val)
     //handle the get request conditioned on the key
     switch(key.as<mboard_prop_t>()){
 
-    case MBOARD_PROP_STREAM_CMD:
-        _soft_time_ctrl->issue_stream_cmd(val.as<stream_cmd_t>());
-        return;
-
     case MBOARD_PROP_RX_SUBDEV_SPEC:
         _rx_subdev_spec = val.as<subdev_spec_t>();
         if (_rx_subdev_spec.size() > this->get_num_ddcs()){
diff --git a/host/lib/usrp/usrp1/usrp1_impl.hpp b/host/lib/usrp/usrp1/usrp1_impl.hpp
index 1d9f6709f..9755c466d 100644
--- a/host/lib/usrp/usrp1/usrp1_impl.hpp
+++ b/host/lib/usrp/usrp1/usrp1_impl.hpp
@@ -182,19 +182,19 @@ private:
 
     //rx dsp functions and settings
     void rx_dsp_init(void);
-    void rx_dsp_get(const wax::obj &, wax::obj &);
-    void rx_dsp_set(const wax::obj &, const wax::obj &);
-    uhd::dict<std::string, double> _rx_dsp_freqs;
+    void rx_dsp_get(const wax::obj &, wax::obj &, size_t);
+    void rx_dsp_set(const wax::obj &, const wax::obj &, size_t);
+    uhd::dict<size_t, double> _rx_dsp_freqs;
     size_t _rx_dsp_decim;
-    wax_obj_proxy::sptr _rx_dsp_proxy;
+    uhd::dict<std::string, wax_obj_proxy::sptr> _rx_dsp_proxies;
 
     //tx dsp functions and settings
     void tx_dsp_init(void);
-    void tx_dsp_get(const wax::obj &, wax::obj &);
-    void tx_dsp_set(const wax::obj &, const wax::obj &);
-    uhd::dict<std::string, double> _tx_dsp_freqs;
+    void tx_dsp_get(const wax::obj &, wax::obj &, size_t);
+    void tx_dsp_set(const wax::obj &, const wax::obj &, size_t);
+    uhd::dict<size_t, double> _tx_dsp_freqs;
     size_t _tx_dsp_interp;
-    wax_obj_proxy::sptr _tx_dsp_proxy;
+    uhd::dict<std::string, wax_obj_proxy::sptr> _tx_dsp_proxies;
 
     //transports
     uhd::transport::usb_zero_copy::sptr _data_transport;
diff --git a/host/tests/tune_helper_test.cpp b/host/tests/tune_helper_test.cpp
index 735e7e948..aabaaaf6e 100644
--- a/host/tests/tune_helper_test.cpp
+++ b/host/tests/tune_helper_test.cpp
@@ -153,10 +153,6 @@ private:
             val = _freq_shift;
             return;
 
-        case DSP_PROP_FREQ_SHIFT_NAMES:
-            val = prop_names_t(1, "");
-            return;
-
         default: UHD_THROW_PROP_GET_ERROR();
         }
     }
@@ -190,12 +186,12 @@ BOOST_AUTO_TEST_CASE(test_tune_helper_rx){
     dummy_dsp dsp(100e6);
 
     std::cout << "Testing tune helper RX automatic IF offset" << std::endl;
-    tune_result_t tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0, 2.3451e9);
+    tune_result_t tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.3451e9);
     std::cout << tr.to_pp_string() << std::endl;
     BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.345e9, tolerance);
     BOOST_CHECK_CLOSE(tr.actual_dsp_freq, -100e3, tolerance);
 
-    double freq_derived = derive_freq_from_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0);
+    double freq_derived = derive_freq_from_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link());
     BOOST_CHECK_CLOSE(freq_derived, 2.3451e9, tolerance);
 }
 
@@ -204,12 +200,12 @@ BOOST_AUTO_TEST_CASE(test_tune_helper_tx){
     dummy_dsp dsp(100e6);
 
     std::cout << "Testing tune helper TX automatic IF offset" << std::endl;
-    tune_result_t tr = tune_tx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0, 2.3451e9);
+    tune_result_t tr = tune_tx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.3451e9);
     std::cout << tr.to_pp_string() << std::endl;
     BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.345e9, tolerance);
     BOOST_CHECK_CLOSE(tr.actual_dsp_freq, 100e3, tolerance);
 
-    double freq_derived = derive_freq_from_tx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0);
+    double freq_derived = derive_freq_from_tx_subdev_and_dsp(subdev.get_link(), dsp.get_link());
     BOOST_CHECK_CLOSE(freq_derived, 2.3451e9, tolerance);
 }
 
@@ -218,12 +214,12 @@ BOOST_AUTO_TEST_CASE(test_tune_helper_rx_nyquist){
     dummy_dsp dsp(100e6);
 
     std::cout << "Testing tune helper RX dummy basic board" << std::endl;
-    tune_result_t tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0, 55e6);
+    tune_result_t tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 55e6);
     std::cout << tr.to_pp_string() << std::endl;
     BOOST_CHECK_CLOSE(tr.actual_inter_freq, 0.0, tolerance);
     BOOST_CHECK_CLOSE(tr.actual_dsp_freq, 45e6, tolerance);
 
-    double freq_derived = derive_freq_from_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0);
+    double freq_derived = derive_freq_from_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link());
     BOOST_CHECK_CLOSE(freq_derived, -45e6, tolerance);
 }
 
@@ -235,21 +231,21 @@ BOOST_AUTO_TEST_CASE(test_tune_helper_rx_lo_off){
     std::cout << "Testing tune helper RX automatic LO offset B >> fs" << std::endl;
     subdev[SUBDEV_PROP_BANDWIDTH] = double(40e6);
     dsp[DSP_PROP_HOST_RATE] = double(4e6);
-    tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0, 2.45e9);
+    tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.45e9);
     std::cout << tr.to_pp_string() << std::endl;
     BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.45e9+4e6/2, tolerance);
 
     std::cout << "Testing tune helper RX automatic LO offset B > fs" << std::endl;
     subdev[SUBDEV_PROP_BANDWIDTH] = double(40e6);
     dsp[DSP_PROP_HOST_RATE] = double(25e6);
-    tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0, 2.45e9);
+    tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.45e9);
     std::cout << tr.to_pp_string() << std::endl;
     BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.45e9+(40e6-25e6)/2, tolerance);
 
     std::cout << "Testing tune helper RX automatic LO offset B < fs" << std::endl;
     subdev[SUBDEV_PROP_BANDWIDTH] = double(20e6);
     dsp[DSP_PROP_HOST_RATE] = double(25e6);
-    tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 0, 2.45e9);
+    tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.45e9);
     std::cout << tr.to_pp_string() << std::endl;
     BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.45e9, tolerance);
 }