1 files changed, 44 insertions, 44 deletions

diff --git a/host/lib/rfnoc/ddc_block_ctrl_impl.cpp b/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
index 62a5ce896..9c7764045 100644
--- a/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
+++ b/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
@@ -9,6 +9,8 @@
 #include <uhd/utils/log.hpp>
 #include <uhd/convert.hpp>
 #include <uhd/types/ranges.hpp>
+#include <uhdlib/utils/narrow.hpp>
+#include <uhdlib/utils/compat_check.hpp>
 #include <boost/math/special_functions/round.hpp>
 #include <cmath>
 
@@ -24,10 +26,23 @@ class ddc_block_ctrl_impl : public ddc_block_ctrl
 public:
 
     UHD_RFNOC_BLOCK_CONSTRUCTOR(ddc_block_ctrl)
+        , _fpga_compat(user_reg_read64(RB_REG_COMPAT_NUM))
+        , _num_halfbands(uhd::narrow_cast<size_t>(
+                    user_reg_read64(RB_REG_NUM_HALFBANDS)))
+        , _cic_max_decim(uhd::narrow_cast<size_t>(
+                    user_reg_read64(RB_REG_CIC_MAX_DECIM)))
     {
-        check_compat_num();
-        _num_halfbands = (size_t) user_reg_read64(RB_REG_NUM_HALFBANDS);
-        _cic_max_decim = (size_t) user_reg_read64(RB_REG_CIC_MAX_DECIM);
+        UHD_LOG_DEBUG(unique_id(),
+            "Loading DDC with " << get_num_halfbands() << " halfbands and "
+            "max CIC decimation " << get_cic_max_decim()
+        );
+        uhd::assert_fpga_compat(
+            MAJOR_COMP, MINOR_COMP,
+            _fpga_compat,
+            "DDC", "DDC",
+            false /* Let it slide if minors mismatch */
+        );
+
         // Argument/prop tree hooks
         for (size_t chan = 0; chan < get_input_ports().size(); chan++) {
             double default_freq = get_arg<double>("freq", chan);
@@ -186,14 +201,15 @@ public:
     }
 
 private:
+    static constexpr size_t MAJOR_COMP = 1;
+    static constexpr size_t MINOR_COMP = 0;
+    static constexpr size_t RB_REG_COMPAT_NUM = 0;
+    static constexpr size_t RB_REG_NUM_HALFBANDS = 1;
+    static constexpr size_t RB_REG_CIC_MAX_DECIM = 2;
 
-    size_t _num_halfbands;
-    size_t _cic_max_decim;
-    static const size_t MAJOR_COMP = 1;
-    static const size_t MINOR_COMP = 0;
-    static const size_t RB_REG_COMPAT_NUM = 0;
-    static const size_t RB_REG_NUM_HALFBANDS = 1;
-    static const size_t RB_REG_CIC_MAX_DECIM = 2;
+    const uint64_t _fpga_compat;
+    const size_t _num_halfbands;
+    const size_t _cic_max_decim;
 
     //! Set the CORDIC frequency shift the signal to \p requested_freq
     double set_freq(const double requested_freq, const size_t chan)
@@ -224,7 +240,7 @@ private:
         for (int hb = _num_halfbands; hb >= 0; hb--) {
             const size_t decim_offset = _cic_max_decim<<(hb-1);
             for(size_t decim = _cic_max_decim; decim > 0; decim--) {
-                const size_t hb_cic_decim =  decim*(1<<hb); 
+                const size_t hb_cic_decim =  decim*(1<<hb);
                 if(hb == 0 || hb_cic_decim > decim_offset) {
                     range.push_back(uhd::range_t(input_rate/hb_cic_decim));
                 }
@@ -315,39 +331,23 @@ private:
         sr_write("SCALE_IQ", actual_scalar, chan);
     }
 
-   //Get cached value of _num_halfbands
-   size_t get_num_halfbands() const
-   {
-       return _num_halfbands;
-   }
-
-   //Get cached value of _cic_max_decim readback
-   size_t get_cic_max_decim() const
-   {
-       return _cic_max_decim;
-   }
-
-   //Check compatibility num, if not current, throw error.
-   //MAJOR COMPATIBILITY, top 32 bits = 0x1
-   //MINOR COMPATIBILITY, lower 32 bits = 0x0
-   void check_compat_num()
-   {
-       uint64_t compat_num = user_reg_read64(RB_REG_COMPAT_NUM);
-       uint32_t compat_num_major = compat_num>>32;
-       uint32_t compat_num_minor = compat_num&0xFFFFFFFF;
-       if (compat_num_major > MAJOR_COMP) {
-           throw uhd::runtime_error(str(boost::format(
-                   "DDC RFNoC block is too new for this software. Please upgrade to a driver that supports hardware revision %d.")
-                       % compat_num_major));
-       } else if (compat_num_major < MAJOR_COMP) {
-           throw uhd::runtime_error(str(boost::format(
-                   "DDC software is too new for this hardware. Please downgrade to a driver that supports hardware revision %d.")
-                       % compat_num_major));
-       }
-       if (compat_num_minor != MINOR_COMP) {
-           UHD_LOGGER_WARNING("DDC") << "DDC hardware compatability does not match software, this may have adverse affects on the block's behavior.";
-       }
-   }
+    //! Get cached value of FPGA compat number
+    uint64_t get_fpga_compat() const
+    {
+        return _fpga_compat;
+    }
+
+    //! Get cached value of _num_halfbands
+    size_t get_num_halfbands() const
+    {
+        return _num_halfbands;
+    }
+
+    //! Get cached value of _cic_max_decim readback
+    size_t get_cic_max_decim() const
+    {
+        return _cic_max_decim;
+    }
 };
 
 UHD_RFNOC_BLOCK_REGISTER(ddc_block_ctrl, "DDC");