1 files changed, 35 insertions, 0 deletions
diff --git a/host/lib/usrp/dsp_utils.hpp b/host/lib/usrp/dsp_utils.hpp
index cfe5375f8..e0ec46184 100644
--- a/host/lib/usrp/dsp_utils.hpp
+++ b/host/lib/usrp/dsp_utils.hpp
@@ -32,6 +32,41 @@ namespace dsp_type1{
     }
 
     /*!
+     * Calculate the rx mux word from properties.
+     * \param is_quadrature true if the subdev is complex
+     * \param is_iq_swapped true if the i and q are reversed
+     * \param the 32-bit rx mux control word
+     */
+    static inline boost::uint32_t calc_rx_mux_word(
+        bool is_quadrature,
+        bool is_iq_swapped
+    ){
+        boost::uint32_t rx_mux = 0;
+        if (is_quadrature){
+            rx_mux = (0x01 << 2) | (0x00 << 0); //Q=ADC1, I=ADC0
+        }else{
+            rx_mux = (0x11 << 2) | (0x00 << 0); //Q=ZERO, I=ADC0
+        }
+        if (is_iq_swapped){
+            rx_mux = (rx_mux << 2) | (rx_mux >> 2);
+        }
+        return rx_mux;
+    }
+
+    /*!
+     * Calculate the tx mux word from properties.
+     * \param is_iq_swapped true if the i and q are reversed
+     * \param the 32-bit tx mux control word
+     */
+    static inline boost::uint32_t calc_tx_mux_word(bool is_iq_swapped){
+        boost::uint32_t tx_mux = 0x10;
+        if (is_iq_swapped){
+            tx_mux = (tx_mux << 4) | (tx_mux >> 4);
+        }
+        return tx_mux;
+    }
+
+    /*!
      * Calculate the cordic word from the frequency and clock rate.
      * The frequency will be set to the actual (possible) frequency.
      *