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/* -*- c++ -*- */
/*
* Copyright 2020 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "correctiq_man_impl.h"
#include <gnuradio/io_signature.h>
#include <volk/volk.h>
namespace gr {
namespace blocks {
correctiq_man::sptr correctiq_man::make(float real, float imag)
{
return gnuradio::get_initial_sptr(new correctiq_man_impl(real, imag));
}
/*
* The private constructor
*/
correctiq_man_impl::correctiq_man_impl(float real, float imag)
: gr::sync_block("correctiq_man",
gr::io_signature::make(1, 1, sizeof(gr_complex)),
gr::io_signature::make(1, 1, sizeof(gr_complex))),
d_avg_real(real),
d_avg_img(imag),
d_buffer_size(8192),
d_volk_const_buffer(NULL)
{
d_k = gr_complex(d_avg_real, d_avg_img);
set_const_buffer(d_buffer_size);
message_port_register_in(pmt::mp("set_real"));
set_msg_handler(pmt::mp("set_real"),
[this](pmt::pmt_t msg) { this->handle_real(msg); });
message_port_register_in(pmt::mp("set_imag"));
set_msg_handler(pmt::mp("set_imag"),
[this](pmt::pmt_t msg) { this->handle_imag(msg); });
}
/*
* Our virtual destructor.
*/
correctiq_man_impl::~correctiq_man_impl()
{
if (d_volk_const_buffer)
volk_free(d_volk_const_buffer);
}
void correctiq_man_impl::set_const_buffer(int new_size)
{
d_buffer_size = new_size;
if (d_volk_const_buffer) {
volk_free(d_volk_const_buffer);
}
d_volk_const_buffer = reinterpret_cast<gr_complex*>(
volk_malloc(sizeof(gr_complex) * d_buffer_size, volk_get_alignment()));
fill_const_buffer();
}
void correctiq_man_impl::fill_const_buffer()
{
gr_complex* tmp_ptr = d_volk_const_buffer;
for (int i = 0; i < d_buffer_size; i++) {
*tmp_ptr++ = d_k;
}
}
float correctiq_man_impl::get_real() { return d_avg_real; }
float correctiq_man_impl::get_imag() { return d_avg_img; }
void correctiq_man_impl::set_real(float new_value)
{
gr::thread::scoped_lock guard(d_setlock);
d_avg_real = new_value;
d_k = gr_complex(d_avg_real, d_avg_img);
fill_const_buffer();
}
void correctiq_man_impl::set_imag(float new_value)
{
gr::thread::scoped_lock guard(d_setlock);
d_avg_img = new_value;
d_k = gr_complex(d_avg_real, d_avg_img);
fill_const_buffer();
}
void correctiq_man_impl::handle_real(pmt::pmt_t msg)
{
if (pmt::is_pair(msg)) {
pmt::pmt_t data = pmt::cdr(msg);
if (pmt::is_real(data)) {
float new_value = pmt::to_float(data);
set_real(new_value);
} else {
GR_LOG_WARN(d_logger, "Non-float real value received. Ignoring.");
}
} else {
if (pmt::is_real(msg)) {
float new_value = pmt::to_float(msg);
set_real(new_value);
} else {
GR_LOG_WARN(d_logger, "Non-float real value received. Ignoring.");
}
}
}
void correctiq_man_impl::handle_imag(pmt::pmt_t msg)
{
if (pmt::is_pair(msg)) {
pmt::pmt_t data = pmt::cdr(msg);
if (pmt::is_real(data)) {
float new_value = pmt::to_float(data);
set_imag(new_value);
} else {
GR_LOG_WARN(d_logger, "Non-float imag value received. Ignoring.");
}
} else {
if (pmt::is_real(msg)) {
float new_value = pmt::to_float(msg);
set_imag(new_value);
} else {
GR_LOG_WARN(d_logger, "Non-float imag value received. Ignoring.");
}
}
}
int correctiq_man_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
gr::thread::scoped_lock guard(d_setlock);
if (noutput_items > d_buffer_size)
set_const_buffer(noutput_items);
// Inputs are complex but we're casting as floats to leverage volk
const float* in = (const float*)input_items[0];
float* out = (float*)output_items[0];
volk_32f_x2_add_32f(
out, in, reinterpret_cast<float*>(d_volk_const_buffer), 2 * noutput_items);
// Tell runtime system how many output items we produced.
return noutput_items;
}
} /* namespace blocks */
} /* namespace gr */
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