From b39358f490a24ffe4b8b29227736b8d2eb40b956 Mon Sep 17 00:00:00 2001
From: Derek Kozel <derek.kozel@ettus.com>
Date: Tue, 10 Jul 2018 16:51:14 +0000
Subject: uhd: Expose DC Offset range via multi_usrp interface

---
 host/lib/usrp/cores/rx_frontend_core_200.cpp  | 9 +++++++++
 host/lib/usrp/cores/rx_frontend_core_3000.cpp | 9 +++++++++
 host/lib/usrp/cores/tx_frontend_core_200.cpp  | 9 +++++++++
 3 files changed, 27 insertions(+)

(limited to 'host/lib/usrp/cores')

diff --git a/host/lib/usrp/cores/rx_frontend_core_200.cpp b/host/lib/usrp/cores/rx_frontend_core_200.cpp
index 38710db15..f0556e4b0 100644
--- a/host/lib/usrp/cores/rx_frontend_core_200.cpp
+++ b/host/lib/usrp/cores/rx_frontend_core_200.cpp
@@ -6,6 +6,7 @@
 //
 
 #include <uhdlib/usrp/cores/rx_frontend_core_200.hpp>
+#include <uhd/types/ranges.hpp>
 #include <boost/math/special_functions/round.hpp>
 #include <boost/bind.hpp>
 
@@ -21,6 +22,11 @@ using namespace uhd;
 #define OFFSET_SET   (1ul << 30)
 #define FLAG_MASK (OFFSET_FIXED | OFFSET_SET)
 
+namespace {
+  static const double DC_OFFSET_MIN = -1.0;
+  static const double DC_OFFSET_MAX = 1.0;
+}
+
 static uint32_t fs_to_bits(const double num, const size_t bits){
     return int32_t(boost::math::round(num * (1 << (bits-1))));
 }
@@ -71,6 +77,9 @@ public:
 
     void populate_subtree(uhd::property_tree::sptr subtree)
     {
+        subtree->create<uhd::meta_range_t>("dc_offset/range")
+            .set(meta_range_t(DC_OFFSET_MIN, DC_OFFSET_MAX))
+        ;
         subtree->create<std::complex<double> >("dc_offset/value")
             .set(DEFAULT_DC_OFFSET_VALUE)
             .set_coercer(boost::bind(&rx_frontend_core_200::set_dc_offset, this, _1))
diff --git a/host/lib/usrp/cores/rx_frontend_core_3000.cpp b/host/lib/usrp/cores/rx_frontend_core_3000.cpp
index cf1a105d8..841a72d9b 100644
--- a/host/lib/usrp/cores/rx_frontend_core_3000.cpp
+++ b/host/lib/usrp/cores/rx_frontend_core_3000.cpp
@@ -6,6 +6,7 @@
 //
 
 #include <uhd/types/dict.hpp>
+#include <uhd/types/ranges.hpp>
 #include <uhdlib/usrp/cores/rx_frontend_core_3000.hpp>
 #include <uhdlib/usrp/cores/dsp_core_utils.hpp>
 #include <boost/math/special_functions/round.hpp>
@@ -34,6 +35,11 @@ using namespace uhd;
 #define OFFSET_SET   (1ul << 30)
 #define FLAG_MASK (OFFSET_FIXED | OFFSET_SET)
 
+namespace {
+    static const double DC_OFFSET_MIN = -1.0;
+    static const double DC_OFFSET_MAX = 1.0;
+}
+
 using namespace uhd::usrp;
 
 static uint32_t fs_to_bits(const double num, const size_t bits){
@@ -138,6 +144,9 @@ public:
     }
 
     void populate_subtree(uhd::property_tree::sptr subtree) {
+        subtree->create<uhd::meta_range_t>("dc_offset/range")
+                .set(meta_range_t(DC_OFFSET_MIN, DC_OFFSET_MAX))
+        ;
         subtree->create<std::complex<double> >("dc_offset/value")
             .set(DEFAULT_DC_OFFSET_VALUE)
             .set_coercer(boost::bind(&rx_frontend_core_3000::set_dc_offset, this, _1))
diff --git a/host/lib/usrp/cores/tx_frontend_core_200.cpp b/host/lib/usrp/cores/tx_frontend_core_200.cpp
index 7e23e2515..d44a618bc 100644
--- a/host/lib/usrp/cores/tx_frontend_core_200.cpp
+++ b/host/lib/usrp/cores/tx_frontend_core_200.cpp
@@ -7,6 +7,7 @@
 
 #include <uhdlib/usrp/cores/tx_frontend_core_200.hpp>
 #include <uhd/types/dict.hpp>
+#include <uhd/types/ranges.hpp>
 #include <uhd/exception.hpp>
 #include <boost/assign/list_of.hpp>
 #include <boost/math/special_functions/round.hpp>
@@ -23,6 +24,11 @@ using namespace uhd;
 const std::complex<double> tx_frontend_core_200::DEFAULT_DC_OFFSET_VALUE = std::complex<double>(0.0, 0.0);
 const std::complex<double> tx_frontend_core_200::DEFAULT_IQ_BALANCE_VALUE = std::complex<double>(0.0, 0.0);
 
+namespace {
+  static const double DC_OFFSET_MIN = -1.0;
+  static const double DC_OFFSET_MAX = 1.0;
+}
+
 static uint32_t fs_to_bits(const double num, const size_t bits){
     return int32_t(boost::math::round(num * (1 << (bits-1))));
 }
@@ -67,6 +73,9 @@ public:
 
     void populate_subtree(uhd::property_tree::sptr subtree)
     {
+        subtree->create<uhd::meta_range_t>("dc_offset/range")
+            .set(meta_range_t(DC_OFFSET_MIN, DC_OFFSET_MAX))
+        ;
         subtree->create< std::complex<double> >("dc_offset/value")
             .set(DEFAULT_DC_OFFSET_VALUE)
             .set_coercer(boost::bind(&tx_frontend_core_200::set_dc_offset, this, _1))
-- 
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