From 85ec2704384c09da8913f58f94b6a3ee6a007ba5 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Wed, 30 Jan 2019 14:41:00 +0100
Subject: x300: Enable ADC gain through RFNoC API

The RFNoC call set_rx_gain() would previously ignore the additional 6 dB
that can be set on the ADC. On the BasicRX board in particular, this
meant there was no RX gain setting at all.
---
 host/lib/usrp/x300/x300_radio_ctrl_impl.hpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'host/lib/usrp/x300/x300_radio_ctrl_impl.hpp')

diff --git a/host/lib/usrp/x300/x300_radio_ctrl_impl.hpp b/host/lib/usrp/x300/x300_radio_ctrl_impl.hpp
index 7cc0ea18d..63aac876d 100644
--- a/host/lib/usrp/x300/x300_radio_ctrl_impl.hpp
+++ b/host/lib/usrp/x300/x300_radio_ctrl_impl.hpp
@@ -15,10 +15,12 @@
 #include <uhd/usrp/dboard_eeprom.hpp>
 #include <uhd/usrp/dboard_manager.hpp>
 #include <uhd/usrp/gpio_defs.hpp>
+#include <uhd/utils/gain_group.hpp>
 #include <uhdlib/rfnoc/radio_ctrl_impl.hpp>
 #include <uhdlib/usrp/cores/rx_frontend_core_3000.hpp>
 #include <uhdlib/usrp/cores/spi_core_3000.hpp>
 #include <uhdlib/usrp/cores/tx_frontend_core_200.hpp>
+#include <unordered_map>
 
 namespace uhd { namespace rfnoc {
 
@@ -54,6 +56,7 @@ public:
 
     double set_tx_gain(const double gain, const size_t chan);
     double set_rx_gain(const double gain, const size_t chan);
+    double get_rx_gain(const size_t chan);
 
     std::vector<std::string> get_rx_lo_names(const size_t chan);
     std::vector<std::string> get_rx_lo_sources(
@@ -234,6 +237,8 @@ private: // members
 
     bool _ignore_cal_file;
 
+    std::unordered_map<size_t, uhd::gain_group::sptr> _tx_gain_groups;
+    std::unordered_map<size_t, uhd::gain_group::sptr> _rx_gain_groups;
 }; /* class radio_ctrl_impl */
 
 }} /* namespace uhd::rfnoc */
-- 
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