diff options
Diffstat (limited to 'host/lib/usrp/mboard/usrp2/dsp_impl.cpp')
-rw-r--r-- | host/lib/usrp/mboard/usrp2/dsp_impl.cpp | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/host/lib/usrp/mboard/usrp2/dsp_impl.cpp b/host/lib/usrp/mboard/usrp2/dsp_impl.cpp deleted file mode 100644 index 22c00d99a..000000000 --- a/host/lib/usrp/mboard/usrp2/dsp_impl.cpp +++ /dev/null @@ -1,293 +0,0 @@ -// -// 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 <uhd/utils.hpp> -#include <boost/assign/list_of.hpp> -#include "usrp2_impl.hpp" - -using namespace uhd; - -/*********************************************************************** - * DDC Helper Methods - **********************************************************************/ -static uint32_t calculate_freq_word_and_update_actual_freq(freq_t &freq, freq_t clock_freq){ - double scale_factor = pow(2.0, 32); - - //calculate the freq register word - uint32_t freq_word = rint((freq / clock_freq) * scale_factor); - - //update the actual frequency - freq = (double(freq_word) / scale_factor) * clock_freq; - - return freq_word; -} - -void usrp2_impl::init_ddc_config(void){ - //create the ddc in the rx dsp dict - _rx_dsps["ddc0"] = wax_obj_proxy( - boost::bind(&usrp2_impl::ddc_get, this, _1, _2), - boost::bind(&usrp2_impl::ddc_set, this, _1, _2) - ); - - //initial config and update - _ddc_decim = 16; - _ddc_freq = 0; - update_ddc_config(); - - _ddc_stream_at = time_spec_t(); - _ddc_enabled = false; - update_ddc_enabled(); -} - -void usrp2_impl::update_ddc_config(void){ - //setup the out data - usrp2_ctrl_data_t out_data; - out_data.id = htonl(USRP2_CTRL_ID_SETUP_THIS_DDC_FOR_ME_BRO); - out_data.data.ddc_args.freq_word = htonl( - calculate_freq_word_and_update_actual_freq(_ddc_freq, get_master_clock_freq()) - ); - out_data.data.ddc_args.decim = htonl(_ddc_decim); - - //send and recv - usrp2_ctrl_data_t in_data = ctrl_send_and_recv(out_data); - ASSERT_THROW(htonl(in_data.id) == USRP2_CTRL_ID_TOTALLY_SETUP_THE_DDC_DUDE); -} - -void usrp2_impl::update_ddc_enabled(void){ - //setup the out data - usrp2_ctrl_data_t out_data; - out_data.id = htonl(USRP2_CTRL_ID_CONFIGURE_STREAMING_FOR_ME_BRO); - out_data.data.streaming.enabled = (_ddc_enabled)? 1 : 0; - out_data.data.streaming.secs = htonl(_ddc_stream_at.secs); - out_data.data.streaming.ticks = htonl(_ddc_stream_at.ticks); - - //send and recv - usrp2_ctrl_data_t in_data = ctrl_send_and_recv(out_data); - ASSERT_THROW(htonl(in_data.id) == USRP2_CTRL_ID_CONFIGURED_THAT_STREAMING_DUDE); - - //clear the stream at time spec (it must be set for the next round of enable/disable) - _ddc_stream_at = time_spec_t(); -} - -/*********************************************************************** - * DDC Properties - **********************************************************************/ -void usrp2_impl::ddc_get(const wax::obj &key, wax::obj &val){ - //handle the case where the key is an expected dsp property - if (key.type() == typeid(dsp_prop_t)){ - switch(wax::cast<dsp_prop_t>(key)){ - case DSP_PROP_NAME: - val = std::string("usrp2 ddc0"); - return; - - case DSP_PROP_OTHERS:{ - prop_names_t others = boost::assign::list_of - ("rate") - ("decim") - ("decim_rates") - ("freq") - ("enabled") - ("stream_at") - ; - val = others; - } - return; - } - } - - //handle string-based properties specific to this dsp - std::string key_name = wax::cast<std::string>(key); - if (key_name == "rate"){ - val = get_master_clock_freq(); - return; - } - else if (key_name == "decim"){ - val = _ddc_decim; - return; - } - else if (key_name == "decim_rates"){ - val = _allowed_decim_and_interp_rates; - return; - } - else if (key_name == "freq"){ - val = _ddc_freq; - return; - } - else if (key_name == "enabled"){ - val = _ddc_enabled; - return; - } - - throw std::invalid_argument(str( - boost::format("error getting: unknown key with name %s") % key_name - )); -} - -void usrp2_impl::ddc_set(const wax::obj &key, const wax::obj &val){ - //handle string-based properties specific to this dsp - std::string key_name = wax::cast<std::string>(key); - if (key_name == "decim"){ - size_t new_decim = wax::cast<size_t>(val); - ASSERT_THROW(std::has( - _allowed_decim_and_interp_rates.begin(), - _allowed_decim_and_interp_rates.end(), - new_decim - )); - _ddc_decim = new_decim; //shadow - update_ddc_config(); - return; - } - else if (key_name == "freq"){ - freq_t new_freq = wax::cast<freq_t>(val); - ASSERT_THROW(new_freq <= get_master_clock_freq()/2.0); - ASSERT_THROW(new_freq >= -get_master_clock_freq()/2.0); - _ddc_freq = new_freq; //shadow - update_ddc_config(); - return; - } - else if (key_name == "enabled"){ - bool new_enabled = wax::cast<bool>(val); - _ddc_enabled = new_enabled; //shadow - update_ddc_enabled(); - return; - } - else if (key_name == "stream_at"){ - time_spec_t new_stream_at = wax::cast<time_spec_t>(val); - _ddc_stream_at = new_stream_at; //shadow - //update_ddc_enabled(); //dont update from here - return; - } - - throw std::invalid_argument(str( - boost::format("error setting: unknown key with name %s") % key_name - )); -} - -/*********************************************************************** - * DUC Helper Methods - **********************************************************************/ -void usrp2_impl::init_duc_config(void){ - //create the duc in the tx dsp dict - _tx_dsps["duc0"] = wax_obj_proxy( - boost::bind(&usrp2_impl::duc_get, this, _1, _2), - boost::bind(&usrp2_impl::duc_set, this, _1, _2) - ); - - //initial config and update - _duc_interp = 16; - _duc_freq = 0; - update_duc_config(); -} - -void usrp2_impl::update_duc_config(void){ - // Calculate CIC interpolation (i.e., without halfband interpolators) - size_t tmp_interp = _duc_interp; - while(tmp_interp > 128) tmp_interp /= 2; - - // Calculate closest multiplier constant to reverse gain absent scale multipliers - size_t interp_cubed = pow(tmp_interp, 3); - size_t scale = rint((4096*pow(2, ceil(log2(interp_cubed))))/(1.65*interp_cubed)); - - //setup the out data - usrp2_ctrl_data_t out_data; - out_data.id = htonl(USRP2_CTRL_ID_SETUP_THIS_DUC_FOR_ME_BRO); - out_data.data.duc_args.freq_word = htonl( - calculate_freq_word_and_update_actual_freq(_duc_freq, get_master_clock_freq()) - ); - out_data.data.duc_args.interp = htonl(_duc_interp); - out_data.data.duc_args.scale_iq = htonl(scale); - - //send and recv - usrp2_ctrl_data_t in_data = ctrl_send_and_recv(out_data); - ASSERT_THROW(htonl(in_data.id) == USRP2_CTRL_ID_TOTALLY_SETUP_THE_DUC_DUDE); -} - -/*********************************************************************** - * DUC Properties - **********************************************************************/ -void usrp2_impl::duc_get(const wax::obj &key, wax::obj &val){ - //handle the case where the key is an expected dsp property - if (key.type() == typeid(dsp_prop_t)){ - switch(wax::cast<dsp_prop_t>(key)){ - case DSP_PROP_NAME: - val = std::string("usrp2 duc0"); - return; - - case DSP_PROP_OTHERS:{ - prop_names_t others = boost::assign::list_of - ("rate") - ("interp") - ("interp_rates") - ("freq") - ; - val = others; - } - return; - } - } - - //handle string-based properties specific to this dsp - std::string key_name = wax::cast<std::string>(key); - if (key_name == "rate"){ - val = get_master_clock_freq(); - return; - } - else if (key_name == "interp"){ - val = _duc_interp; - return; - } - else if (key_name == "interp_rates"){ - val = _allowed_decim_and_interp_rates; - return; - } - else if (key_name == "freq"){ - val = _duc_freq; - return; - } - - throw std::invalid_argument(str( - boost::format("error getting: unknown key with name %s") % key_name - )); -} - -void usrp2_impl::duc_set(const wax::obj &key, const wax::obj &val){ - //handle string-based properties specific to this dsp - std::string key_name = wax::cast<std::string>(key); - if (key_name == "interp"){ - size_t new_interp = wax::cast<size_t>(val); - ASSERT_THROW(std::has( - _allowed_decim_and_interp_rates.begin(), - _allowed_decim_and_interp_rates.end(), - new_interp - )); - _duc_interp = new_interp; //shadow - update_duc_config(); - return; - } - else if (key_name == "freq"){ - freq_t new_freq = wax::cast<freq_t>(val); - ASSERT_THROW(new_freq <= get_master_clock_freq()/2.0); - ASSERT_THROW(new_freq >= -get_master_clock_freq()/2.0); - _duc_freq = new_freq; //shadow - update_duc_config(); - return; - } - - throw std::invalid_argument(str( - boost::format("error setting: unknown key with name %s") % key_name - )); -} |