diff options
Diffstat (limited to 'host/lib/usrp/dboard/db_wbx_common.cpp')
| -rw-r--r-- | host/lib/usrp/dboard/db_wbx_common.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/host/lib/usrp/dboard/db_wbx_common.cpp b/host/lib/usrp/dboard/db_wbx_common.cpp new file mode 100644 index 000000000..503e5aabf --- /dev/null +++ b/host/lib/usrp/dboard/db_wbx_common.cpp @@ -0,0 +1,151 @@ +// +// Copyright 2011-2012 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. +// + +#include "db_wbx_common.hpp" +#include <uhd/types/dict.hpp> +#include <uhd/types/ranges.hpp> +#include <uhd/types/sensors.hpp> +#include <uhd/utils/assert_has.hpp> +#include <uhd/utils/algorithm.hpp> +#include <uhd/utils/msg.hpp> + +using namespace uhd; +using namespace uhd::usrp; +using namespace boost::assign; + + +/*********************************************************************** + * Gain-related functions + **********************************************************************/ +static int rx_pga0_gain_to_iobits(double &gain){ + //clip the input + gain = wbx_rx_gain_ranges["PGA0"].clip(gain); + + //convert to attenuation + double attn = wbx_rx_gain_ranges["PGA0"].stop() - gain; + + //calculate the attenuation + int attn_code = boost::math::iround(attn*2); + int iobits = ((~attn_code) << RX_ATTN_SHIFT) & RX_ATTN_MASK; + + UHD_LOGV(often) << boost::format( + "WBX RX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x" + ) % attn % attn_code % (iobits & RX_ATTN_MASK) % RX_ATTN_MASK << std::endl; + + //the actual gain setting + gain = wbx_rx_gain_ranges["PGA0"].stop() - double(attn_code)/2; + + return iobits; +} + + +/*********************************************************************** + * WBX Common Implementation + **********************************************************************/ +wbx_base::wbx_base(ctor_args_t args) : xcvr_dboard_base(args){ + + //enable the clocks that we need + this->get_iface()->set_clock_enabled(dboard_iface::UNIT_TX, true); + this->get_iface()->set_clock_enabled(dboard_iface::UNIT_RX, true); + + //////////////////////////////////////////////////////////////////// + // Register RX properties + //////////////////////////////////////////////////////////////////// + this->get_rx_subtree()->create<sensor_value_t>("sensors/lo_locked") + .publish(boost::bind(&wbx_base::get_locked, this, dboard_iface::UNIT_RX)); + BOOST_FOREACH(const std::string &name, wbx_rx_gain_ranges.keys()){ + this->get_rx_subtree()->create<double>("gains/"+name+"/value") + .coerce(boost::bind(&wbx_base::set_rx_gain, this, _1, name)) + .set(wbx_rx_gain_ranges[name].start()); + this->get_rx_subtree()->create<meta_range_t>("gains/"+name+"/range") + .set(wbx_rx_gain_ranges[name]); + } + this->get_rx_subtree()->create<std::string>("connection").set("IQ"); + this->get_rx_subtree()->create<bool>("enabled") + .subscribe(boost::bind(&wbx_base::set_rx_enabled, this, _1)) + .set(true); //start enabled + this->get_rx_subtree()->create<bool>("use_lo_offset").set(false); + this->get_rx_subtree()->create<double>("bandwidth/value").set(2*20.0e6); //20MHz low-pass, we want complex double-sided + this->get_rx_subtree()->create<meta_range_t>("bandwidth/range") + .set(freq_range_t(2*20.0e6, 2*20.0e6)); + + //////////////////////////////////////////////////////////////////// + // Register TX properties + //////////////////////////////////////////////////////////////////// + this->get_tx_subtree()->create<sensor_value_t>("sensors/lo_locked") + .publish(boost::bind(&wbx_base::get_locked, this, dboard_iface::UNIT_TX)); + this->get_tx_subtree()->create<std::string>("connection").set("IQ"); + this->get_tx_subtree()->create<bool>("use_lo_offset").set(false); + this->get_tx_subtree()->create<double>("bandwidth/value").set(2*20.0e6); //20MHz low-pass, we want complex double-sided + this->get_tx_subtree()->create<meta_range_t>("bandwidth/range") + .set(freq_range_t(2*20.0e6, 2*20.0e6)); + + // instantiate subclass foo + switch(get_rx_id().to_uint16()) { + case 0x053: + db_actual = wbx_versionx_sptr(new wbx_version2(this)); + return; + case 0x057: + db_actual = wbx_versionx_sptr(new wbx_version3(this)); + return; + case 0x063: + db_actual = wbx_versionx_sptr(new wbx_version4(this)); + return; + default: + /* We didn't recognize the version of the board... */ + UHD_THROW_INVALID_CODE_PATH(); + } + +} + + +wbx_base::~wbx_base(void){ + /* NOP */ +} + +/*********************************************************************** + * Enables + **********************************************************************/ +void wbx_base::set_rx_enabled(bool enb){ + this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, + (enb)? RX_POWER_UP : RX_POWER_DOWN, RX_POWER_UP | RX_POWER_DOWN + ); +} + +/*********************************************************************** + * Gain Handling + **********************************************************************/ +double wbx_base::set_rx_gain(double gain, const std::string &name){ + assert_has(wbx_rx_gain_ranges.keys(), name, "wbx rx gain name"); + if(name == "PGA0"){ + boost::uint16_t io_bits = rx_pga0_gain_to_iobits(gain); + _rx_gains[name] = gain; + + //write the new gain to rx gpio outputs + this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, io_bits, RX_ATTN_MASK); + } + else UHD_THROW_INVALID_CODE_PATH(); + return _rx_gains[name]; //returned shadowed +} + +/*********************************************************************** + * Tuning + **********************************************************************/ +sensor_value_t wbx_base::get_locked(dboard_iface::unit_t unit){ + const bool locked = (this->get_iface()->read_gpio(unit) & LOCKDET_MASK) != 0; + return sensor_value_t("LO", locked, "locked", "unlocked"); +} |