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-rw-r--r--host/lib/usrp/usrp2/codec_ctrl.cpp27
-rw-r--r--host/lib/usrp/usrp2/codec_ctrl.hpp13
-rw-r--r--host/lib/usrp/usrp2/codec_impl.cpp63
-rw-r--r--host/lib/usrp/usrp2/usrp2_impl.hpp3
4 files changed, 97 insertions, 9 deletions
diff --git a/host/lib/usrp/usrp2/codec_ctrl.cpp b/host/lib/usrp/usrp2/codec_ctrl.cpp
index 107894d2a..b8f1df799 100644
--- a/host/lib/usrp/usrp2/codec_ctrl.cpp
+++ b/host/lib/usrp/usrp2/codec_ctrl.cpp
@@ -22,6 +22,7 @@
#include <boost/cstdint.hpp>
#include <boost/foreach.hpp>
#include <iostream>
+#include <uhd/utils/exception.hpp>
static const bool codec_ctrl_debug = false;
@@ -79,15 +80,29 @@ public:
if(_iface->get_hw_rev() < USRP2P_FIRST_HW_REV) { //if we're on a USRP2
_iface->poke32(_iface->regs.misc_ctrl_adc, U2_FLAG_MISC_CTRL_ADC_OFF);
} else { //we're on a USRP2+
-// _ads62p44_regs.reset = 1;
-// this->send_ads62p44_reg(0x00); //issue a reset to the ADC
- //everything else should be pretty much default, i think
-// _ads62p44_regs.decimation = DECIMATION_DECIMATE_1;
-
-
+ //send a global power-down to the ADC here... it will get lifted on reset
+ _ads62p44_regs.power_down = ads62p44_regs_t::POWER_DOWN_GLOBAL_PD;
+ this->send_ads62p44_reg(0x14);
}
}
+ void set_rx_digital_gain(float gain) { //combine fine/correction digital gains
+ if(_iface->get_hw_rev() >= USRP2P_FIRST_HW_REV) {
+ int fine_gain = int(gain/0.5);
+ _ads62p44_regs.fine_gain = fine_gain; //hey what about when it calls for 6.5dB?
+ _ads62p44_regs.gain_correction = (gain - (double(fine_gain) * 0.5)) / 0.05;
+ this->send_ads62p44_reg(0x17);
+ this->send_ads62p44_reg(0x1A);
+ } else UHD_THROW_INVALID_CODE_PATH(); //should never have been called for USRP2
+ }
+
+ void set_rx_analog_gain(bool gain) { //turns on/off analog 3.5dB preamp
+ if(_iface->get_hw_rev() >= USRP2P_FIRST_HW_REV) {
+ _ads62p44_regs.coarse_gain = gain ? ads62p44_regs_t::COARSE_GAIN_3_5DB : ads62p44_regs_t::COARSE_GAIN_0DB;
+ this->send_ads62p44_reg(0x14);
+ } else UHD_THROW_INVALID_CODE_PATH();
+ }
+
private:
ad9777_regs_t _ad9777_regs;
ads62p44_regs_t _ads62p44_regs;
diff --git a/host/lib/usrp/usrp2/codec_ctrl.hpp b/host/lib/usrp/usrp2/codec_ctrl.hpp
index ad014e0e1..d485690f6 100644
--- a/host/lib/usrp/usrp2/codec_ctrl.hpp
+++ b/host/lib/usrp/usrp2/codec_ctrl.hpp
@@ -33,6 +33,19 @@ public:
*/
static sptr make(usrp2_iface::sptr iface);
+ /*!
+ * Set the analog preamplifier on the USRP2+ ADC (ADS62P44).
+ * \param gain enable or disable the 3.5dB preamp
+ */
+
+ virtual void set_rx_analog_gain(bool gain) = 0;
+
+ /*!
+ * Set the digital gain on the USRP2+ ADC (ADS62P44).
+ * \param gain from 0-6.5dB
+ */
+
+ virtual void set_rx_digital_gain(float gain) = 0;
};
#endif /* INCLUDED_CODEC_CTRL_HPP */
diff --git a/host/lib/usrp/usrp2/codec_impl.cpp b/host/lib/usrp/usrp2/codec_impl.cpp
index b9d51abf5..b246a35f8 100644
--- a/host/lib/usrp/usrp2/codec_impl.cpp
+++ b/host/lib/usrp/usrp2/codec_impl.cpp
@@ -17,10 +17,22 @@
#include "usrp2_impl.hpp"
#include <uhd/usrp/codec_props.hpp>
+#include <uhd/types/dict.hpp>
+#include <uhd/types/ranges.hpp>
#include <boost/bind.hpp>
+#include <boost/assign/list_of.hpp>
+#include <uhd/utils/assert.hpp>
+#include <uhd/utils/exception.hpp>
using namespace uhd;
using namespace uhd::usrp;
+using namespace boost::assign;
+
+//this only applies to USRP2P
+static const uhd::dict<std::string, gain_range_t> codec_rx_gain_ranges = map_list_of
+ ("analog", gain_range_t(0, 3.5, float(3.5)))
+ ("digital", gain_range_t(0, 6.45, float(0.05)));
+
/***********************************************************************
* Helper Methods
@@ -55,18 +67,63 @@ void usrp2_mboard_impl::rx_codec_get(const wax::obj &key_, wax::obj &val){
return;
case CODEC_PROP_GAIN_NAMES:
- val = prop_names_t(); //no gain elements to be controlled
+ if(_iface->get_hw_rev() >= USRP2P_FIRST_HW_REV) {
+ val = prop_names_t(codec_rx_gain_ranges.keys());
+ } else val = prop_names_t();
+ return;
+
+ case CODEC_PROP_GAIN_I:
+ case CODEC_PROP_GAIN_Q:
+ assert_has(_codec_rx_gains.keys(), name, "codec rx gain name");
+ val = _codec_rx_gains[name];
return;
default: UHD_THROW_PROP_GET_ERROR();
}
}
-void usrp2_mboard_impl::rx_codec_set(const wax::obj &, const wax::obj &){
- UHD_THROW_PROP_SET_ERROR();
+void usrp2_mboard_impl::rx_codec_set(const wax::obj &key_, const wax::obj &val){
+ wax::obj key; std::string name;
+ boost::tie(key, name) = extract_named_prop(key_);
+
+ float gain;
+
+ switch(key.as<codec_prop_t>()) {
+ case CODEC_PROP_GAIN_I:
+ case CODEC_PROP_GAIN_Q:
+ if(_iface->get_hw_rev() < USRP2P_FIRST_HW_REV) UHD_THROW_PROP_SET_ERROR();//this capability is only found in USRP2P
+
+ gain = val.as<float>();
+ this->rx_codec_set_gain(gain, name); //okay. we can either have ONE gain and let codec_ctrl do the sorting between analog/digital gains, or we can have TWO gains and do the priority somewhere else.
+ return;
+
+ default:
+ UHD_THROW_PROP_SET_ERROR();
+ }
}
/***********************************************************************
+ * Helper function to set RX codec gain
+ ***********************************************************************/
+
+void usrp2_mboard_impl::rx_codec_set_gain(float gain, const std::string &name){
+ assert_has(codec_rx_gain_ranges.keys(), name, "codec rx gain name");
+
+ _codec_rx_gains[name] = gain;
+
+ if(name == "analog") {
+ _codec_ctrl->set_rx_analog_gain(gain > 0); //just turn it on or off
+ return;
+ }
+ if(name == "digital") {
+ _codec_ctrl->set_rx_digital_gain(gain);
+ return;
+ }
+ UHD_THROW_PROP_SET_ERROR();
+}
+
+
+/***********************************************************************
* TX Codec Properties
**********************************************************************/
void usrp2_mboard_impl::tx_codec_get(const wax::obj &key_, wax::obj &val){
diff --git a/host/lib/usrp/usrp2/usrp2_impl.hpp b/host/lib/usrp/usrp2/usrp2_impl.hpp
index 6d705f14e..8421b6b39 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.hpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.hpp
@@ -170,6 +170,9 @@ private:
wax_obj_proxy::sptr _rx_codec_proxy;
wax_obj_proxy::sptr _tx_codec_proxy;
+ void rx_codec_set_gain(float, const std::string &);
+ uhd::dict<std::string, float> _codec_rx_gains;
+
//properties interface for rx dboard
void rx_dboard_get(const wax::obj &, wax::obj &);
void rx_dboard_set(const wax::obj &, const wax::obj &);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 23:00:50 +0000