diff options
Diffstat (limited to 'host/lib/usrp/usrp2/codec_impl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp2/codec_impl.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp2/codec_impl.cpp b/host/lib/usrp/usrp2/codec_impl.cpp new file mode 100644 index 000000000..969b5b4b9 --- /dev/null +++ b/host/lib/usrp/usrp2/codec_impl.cpp @@ -0,0 +1,163 @@ +// +// Copyright 2010 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 "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, 3.5)) + ("digital", gain_range_t(0, 6.0, 0.5)) + ("digital-fine", gain_range_t(0, 0.5, 0.05)); + + +/*********************************************************************** + * Helper Methods + **********************************************************************/ +void usrp2_mboard_impl::codec_init(void){ + //make proxies + _rx_codec_proxy = wax_obj_proxy::make( + boost::bind(&usrp2_mboard_impl::rx_codec_get, this, _1, _2), + boost::bind(&usrp2_mboard_impl::rx_codec_set, this, _1, _2) + ); + _tx_codec_proxy = wax_obj_proxy::make( + boost::bind(&usrp2_mboard_impl::tx_codec_get, this, _1, _2), + boost::bind(&usrp2_mboard_impl::tx_codec_set, this, _1, _2) + ); +} + +/*********************************************************************** + * RX Codec Properties + **********************************************************************/ +void usrp2_mboard_impl::rx_codec_get(const wax::obj &key_, wax::obj &val){ + wax::obj key; std::string name; + boost::tie(key, name) = extract_named_prop(key_); + + //handle the get request conditioned on the key + switch(key.as<codec_prop_t>()){ + case CODEC_PROP_NAME: + val = std::string("usrp2 adc"); + return; + + case CODEC_PROP_OTHERS: + val = prop_names_t(); + return; + + case CODEC_PROP_GAIN_NAMES: + 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; + + case CODEC_PROP_GAIN_RANGE: + assert_has(codec_rx_gain_ranges.keys(), name, "codec rx gain range name"); + val = codec_rx_gain_ranges[name]; + return; + + default: UHD_THROW_PROP_GET_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); + 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; + } + if(name == "digital-fine") { + _codec_ctrl->set_rx_digital_fine_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){ + wax::obj key; std::string name; + boost::tie(key, name) = extract_named_prop(key_); + + //handle the get request conditioned on the key + switch(key.as<codec_prop_t>()){ + case CODEC_PROP_NAME: + val = std::string("usrp2 dac - ad9777"); + return; + + case CODEC_PROP_OTHERS: + val = prop_names_t(); + return; + + case CODEC_PROP_GAIN_NAMES: + val = prop_names_t(); //no gain elements to be controlled + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } +} + +void usrp2_mboard_impl::tx_codec_set(const wax::obj &, const wax::obj &){ + UHD_THROW_PROP_SET_ERROR(); +} |