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//
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include "e3xx_constants.hpp"
#include "e3xx_radio_control_impl.hpp"
#include <uhd/utils/math.hpp>
/*
* E320 frequency bands:
*
* For RX:
* Band Freq BSEL-210 BSEL-543 TX/RX RX2
* SEL_10 | FE_SEL_210 SEL_10
* chan 1 | chan 2
* -------------------------------------------------------------------------
* LB_B2: < 450 RF5 100 RF6 101 01 RF3 100 RF1 001 10
* LB_B3: 450-700 RF6 101 RF5 100 01 RF3 100 RF1 001 10
* LB_B4: 700-1200 RF3 010 RF4 011 01 RF3 100 RF1 001 10
* LB_B5: 1200-1800 RF4 011 RF3 010 01 RF3 100 RF1 001 10
* LB_B6: 1800-2350 RF1 000 RF2 001 01 RF3 100 RF1 001 10
* LB_B7: 2350-2600 RF2 001 RF1 000 01 RF3 100 RF1 001 10
* HB: 2600+ --- 111 --- 111 10 RF3 100 RF1 001 01
*
* SEL_1 SEL_0
* 1 0 ANT1(RX_HB)--TX/RX, ANT2(RX_LB)--RX
* 0 1 ANT1(RX_HB)--RX, ANT2(RX_LB)--TX/RX
*
* For TX:
* Band-Freq BSEL-210 BSEL-543 TX/RX
* FE_SEL_210
* chan 1 | chan 2
* ------------------------------------------------------------
* LB_80 < 117.7 RF7 011 RF8 111 RF1 001 RF3 100
* LB_160 117.7-178.2 RF8 111 RF7 011 RF1 001 RF3 100
* LB_225 178.2-284.3 RF5 001 RF6 101 RF1 001 RF3 100
* LB_400 284.3-453.7 RF6 101 RF5 001 RF1 001 RF3 100
* LB_575 453.7-723.8 RF3 010 RF4 110 RF1 001 RF3 100
* LB_1000 723.8-1154.9 RF4 110 RF3 010 RF1 001 RF3 100
* LB_1700 1154.9-1842.6 RF1 000 RF2 100 RF1 001 RF3 100
* LB_2750 1842.6-2940.0 RF2 100 RF1 000 RF1 001 RF3 100
* HB_5850 > 2940.0 --- --- --- --- RF2 010 RF2 010
*
*/
/*
* E31x frequency bands:
*
* For RX: (chan here is fe_chan - swapped)
* Band Freq RX_BSEL-210 RXC_BSEL-10 RXB_BSEL-10 RX2 TX/RX
* VCRX_V1_V2
VCTXRX_V1_V2
* chan1 | chan2 chan1 | chan2 chan1 | chan2 RX ant | TXRX ant
chan2 | chan1
*
----------------------------------------------------------------------------------------------------
* LB_B2: < 450 RF5 100 RF6 101 J2 10 J1 01 -- 00 -- 00 01 10 J2 10
J1 01
* LB_B3: 450-700 RF3 010 RF4 011 J3 11 J3 11 -- 00 -- 00 01 10 J2 10
J1 01
* LB_B4: 700-1200 RF1 000 RF2 001 J1 01 J2 10 -- 00 -- 00 01 10 J2 10
J1 01
* LB_B5: 1200-1800 RF2 001 RF1 000 -- 00 -- 00 J2 10 J1 01 01 10 J2 10
J1 01
* LB_B6: 1800-2350 RF4 011 RF3 010 -- 00 -- 00 J3 11 J3 11 01 10 J2 10
J1 01
* LB_B7: 2350-2600 RF6 101 RF5 100 -- 00 -- 00 J1 01 J2 10 01 10 J2 10
J1 01
* HB: 2600+ --- 111 --- 111 -- 00 -- 00 -- 00 -- 00 10 01 J2 10
J1 01
*
*
* For TX:
* Band-Freq TX_BSEL-210 TX/RX
VCTXRX_V1_V2
* chan 1 | chan 2
* ------------------------------------------------------------
* LB_80 < 117.7 RF8 111 J1 01 J2 10
* LB_160 117.7-178.2 RF7 110 J1 01 J2 10
* LB_225 178.2-284.3 RF6 101 J1 01 J2 10
* LB_400 284.3-453.7 RF5 100 J1 01 J2 10
* LB_575 453.7-723.8 RF4 011 J1 01 J2 10
* LB_1000 723.8-1154.9 RF3 010 J1 01 J2 10
* LB_1700 1154.9-1842.6 RF2 001 J1 01 J2 10
* LB_2750 1842.6-2940.0 RF1 000 J1 01 J2 10
* HB_5850 > 2940.0 RF8 111 J3 11 J3 11
*
*/
using namespace uhd;
using namespace uhd::usrp;
using namespace uhd::rfnoc;
using namespace uhd::math::fp_compare;
namespace {
/* Note on the RX filter bank:
*
* The RX path has 7 bands, which we call LB_B2, B3, .. HB same as
* the schematic.
*
* The following constants define lower cutoff frequencies for each band.
* LB_B2 does not have a lower cutoff frequency, it is implied by
* AD9361_MIN_FREQ. E3XX_RX_BAND1_MIN_FREQ is the cutover frequency
* for switching from LB_B2 to LB_B3, and so on.
*
* Bands 1-6 have both high- and low-pass filters (effectively band
* passes). Frequencies need to be chosen to allow as much of the full
* bandwidth through unattenuated.
*/
constexpr double E3XX_RX_LB_BAND3_MIN_FREQ = 450e6;
constexpr double E3XX_RX_LB_BAND4_MIN_FREQ = 700e6;
constexpr double E3XX_RX_LB_BAND5_MIN_FREQ = 1200e6;
constexpr double E3XX_RX_LB_BAND6_MIN_FREQ = 1800e6;
constexpr double E3XX_RX_LB_BAND7_MIN_FREQ = 2350e6;
constexpr double E3XX_RX_HB_MIN_FREQ = 2600e6;
/* Note on the TX filter bank:
*
* The TX path has 9 bands, which we name according to the schematic.
*
* The following constants define lower cutoff frequencies for each band.
* LB_80 does not have a lower cutoff frequency, it is implied by
* AD9361_MIN_FREQ. E3XX_TX_LB_160_MIN_FREQ is the cutover frequency
* for switching from LB_80 to LB_160, and so on.
*
* All filters on the TX filter bank are
* low pass filters (no high pass filters).
* Frequencies need to be chosen to allow as much of the full bandwidth
* through unattenuated (so don't go all the way up to the cutoff frequency
* of that filter).
*/
constexpr double E3XX_TX_LB_160_MIN_FREQ = 117.7e6;
constexpr double E3XX_TX_LB_225_MIN_FREQ = 178.2e6;
constexpr double E3XX_TX_LB_400_MIN_FREQ = 284.3e6;
constexpr double E3XX_TX_LB_575_MIN_FREQ = 453.7e6;
constexpr double E3XX_TX_LB_1000_MIN_FREQ = 723.8e6;
constexpr double E3XX_TX_LB_1700_MIN_FREQ = 1154.9e6;
constexpr double E3XX_TX_LB_2750_MIN_FREQ = 1842.6e6;
constexpr double E3XX_TX_HB_MIN_FREQ = 2940.0e6;
} // namespace
e3xx_radio_control_impl::rx_band e3xx_radio_control_impl::map_freq_to_rx_band(
const double freq)
{
e3xx_radio_control_impl::rx_band band;
if (fp_compare_epsilon<double>(freq) < AD9361_RX_MIN_FREQ) {
band = rx_band::INVALID_BAND;
} else if (fp_compare_epsilon<double>(freq) < E3XX_RX_LB_BAND3_MIN_FREQ) {
band = rx_band::LB_B2;
} else if (fp_compare_epsilon<double>(freq) < E3XX_RX_LB_BAND4_MIN_FREQ) {
band = rx_band::LB_B3;
} else if (fp_compare_epsilon<double>(freq) < E3XX_RX_LB_BAND5_MIN_FREQ) {
band = rx_band::LB_B4;
} else if (fp_compare_epsilon<double>(freq) < E3XX_RX_LB_BAND6_MIN_FREQ) {
band = rx_band::LB_B5;
} else if (fp_compare_epsilon<double>(freq) < E3XX_RX_LB_BAND7_MIN_FREQ) {
band = rx_band::LB_B6;
} else if (fp_compare_epsilon<double>(freq) < E3XX_RX_HB_MIN_FREQ) {
band = rx_band::LB_B7;
} else if (fp_compare_epsilon<double>(freq) <= AD9361_RX_MAX_FREQ) {
band = rx_band::HB;
} else {
band = rx_band::INVALID_BAND;
}
return band;
}
e3xx_radio_control_impl::tx_band e3xx_radio_control_impl::map_freq_to_tx_band(
const double freq)
{
e3xx_radio_control_impl::tx_band band;
if (fp_compare_epsilon<double>(freq) < AD9361_TX_MIN_FREQ) {
band = tx_band::INVALID_BAND;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_160_MIN_FREQ) {
band = tx_band::LB_80;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_225_MIN_FREQ) {
band = tx_band::LB_160;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_400_MIN_FREQ) {
band = tx_band::LB_225;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_575_MIN_FREQ) {
band = tx_band::LB_400;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_1000_MIN_FREQ) {
band = tx_band::LB_575;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_1700_MIN_FREQ) {
band = tx_band::LB_1000;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_LB_2750_MIN_FREQ) {
band = tx_band::LB_1700;
} else if (fp_compare_epsilon<double>(freq) < E3XX_TX_HB_MIN_FREQ) {
band = tx_band::LB_2750;
} else if (fp_compare_epsilon<double>(freq) <= AD9361_TX_MAX_FREQ) {
band = tx_band::HB;
} else {
band = tx_band::INVALID_BAND;
}
return band;
}
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