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//
// Copyright 2017 Ettus Research, National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0
//
#include "ad937x_fir.hpp"
ad937x_fir::ad937x_fir() :
ad937x_fir(0, { 1, 0 })
{
}
ad937x_fir::ad937x_fir(int8_t gain, const std::vector<int16_t>& coefficients) :
// These two constructors will be run in the order they are declared in the class definition
// see C++ standard 12.6.2 section 13.3
_fir_coefficients(coefficients),
_fir({gain,
static_cast<uint8_t>(_fir_coefficients.size()),
_fir_coefficients.data()})
{
}
// ad937x_fir.fir should not be accessed during this operation
void ad937x_fir::set_fir(int8_t gain, const std::vector<int16_t>& coefficients)
{
_fir.gain_dB = gain;
_fir_coefficients = coefficients;
_fir.coefs = _fir_coefficients.data();
_fir.numFirCoefs = static_cast<uint8_t>(_fir_coefficients.size());
}
std::vector<int16_t> ad937x_fir::get_fir(int8_t &gain) const
{
gain = _fir.gain_dB;
return _fir_coefficients;
}
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