[Buildroot] [PATCH v2] package/uhd: fix usrp2 build

@@ -0,0 +1,60 @@
+From 3796175f32f0cc24c16809d8175d423bc7053de9 Mon Sep 17 00:00:00 2001
+From: StefanBruens <stefan.bruens@rwth-aachen.de>
+Date: Wed, 5 May 2021 18:24:58 +0200
+Subject: [PATCH 003/121] usrp2: Replace boost::math::iround/math::sign with
+ std::lround
+
+Instead of multiplying zone with the sign repeatedly just make
+the zone a signed value.
+
+See #437, #438
+
+Signed-off-by: Aaron Rossetto <aaron.rossetto@ni.com>
+[gwenhael.goavec-merou@trabucayre.com: backport from upstream]
+Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
+---
+ host/lib/usrp/usrp2/usrp2_impl.cpp | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
+index d780a6c6b..59fd9849c 100644
+--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
++++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
+@@ -20,6 +20,7 @@
+ #include <boost/format.hpp>
+ #include <boost/math/special_functions.hpp>
+ #include <functional>
++#include <cmath>
+ 
+ using namespace uhd;
+ using namespace uhd::usrp;
+@@ -916,22 +917,21 @@ double usrp2_impl::set_tx_dsp_freq(const std::string& mb, const double freq_)
+     const double tick_rate = _tree->access<double>("/mboards/" + mb + "/tick_rate").get();
+ 
+     // calculate the DAC shift (multiples of rate)
+-    const int sign         = boost::math::sign(new_freq);
+-    const int zone         = std::min(boost::math::iround(new_freq / tick_rate), 2);
+-    const double dac_shift = sign * zone * tick_rate;
++    const int zone         = std::max(std::min(std::lround(new_freq / tick_rate), 2), -2);
++    const double dac_shift = zone * tick_rate;
+     new_freq -= dac_shift; // update FPGA DSP target freq
+     UHD_LOG_TRACE("USRP2",
+         "DSP Tuning: Requested " + std::to_string(freq_ / 1e6)
+             + " MHz, Using "
+               "Nyquist zone "
+-            + std::to_string(sign * zone)
++            + std::to_string(zone)
+             + ", leftover DSP tuning: " + std::to_string(new_freq / 1e6) + " MHz.");
+ 
+     // set the DAC shift (modulation mode)
+     if (zone == 0) {
+         _mbc[mb].codec->set_tx_mod_mode(0); // no shift
+     } else {
+-        _mbc[mb].codec->set_tx_mod_mode(sign * 4 / zone); // DAC interp = 4
++        _mbc[mb].codec->set_tx_mod_mode(4 / zone); // DAC interp = 4
+     }
+ 
+     return _mbc[mb].tx_dsp->set_freq(new_freq) + dac_shift; // actual freq
+-- 
+2.32.0
+

@@ -0,0 +1,28 @@
+From d1c6290fe9c8b01068abfca6f272e2a1e031b9de Mon Sep 17 00:00:00 2001
+From: StefanBruens <stefan.bruens@rwth-aachen.de>
+Date: Wed, 5 May 2021 18:49:40 +0200
+Subject: [PATCH 004/121] usrp2: Use explicit template type for std::min<T>
+
+Signed-off-by: Aaron Rossetto <aaron.rossetto@ni.com>
+[gwenhael.goavec-merou@trabucayre.com: backport from upstream]
+Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
+---
+ host/lib/usrp/usrp2/usrp2_impl.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
+index 59fd9849c..e82a9fa71 100644
+--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
++++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
+@@ -917,7 +917,7 @@ double usrp2_impl::set_tx_dsp_freq(const std::string& mb, const double freq_)
+     const double tick_rate = _tree->access<double>("/mboards/" + mb + "/tick_rate").get();
+ 
+     // calculate the DAC shift (multiples of rate)
+-    const int zone         = std::max(std::min(std::lround(new_freq / tick_rate), 2), -2);
++    const int zone         = std::max(std::min<int>(std::lround(new_freq / tick_rate), 2), -2);
+     const double dac_shift = zone * tick_rate;
+     new_freq -= dac_shift; // update FPGA DSP target freq
+     UHD_LOG_TRACE("USRP2",
+-- 
+2.32.0
+