diff options
Diffstat (limited to 'host/lib/usrp/dboard/neon/neon_bands.cpp')
| -rw-r--r-- | host/lib/usrp/dboard/neon/neon_bands.cpp | 101 |
1 files changed, 51 insertions, 50 deletions
diff --git a/host/lib/usrp/dboard/neon/neon_bands.cpp b/host/lib/usrp/dboard/neon/neon_bands.cpp index 25aa0a181..303d2801d 100644 --- a/host/lib/usrp/dboard/neon/neon_bands.cpp +++ b/host/lib/usrp/dboard/neon/neon_bands.cpp @@ -4,8 +4,8 @@ // SPDX-License-Identifier: GPL-3.0-or-later // -#include "neon_radio_ctrl_impl.hpp" #include "neon_constants.hpp" +#include "neon_radio_ctrl_impl.hpp" #include <uhd/utils/math.hpp> /* @@ -51,54 +51,55 @@ 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. NEON_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 NEON_RX_LB_BAND3_MIN_FREQ = 450e6; - constexpr double NEON_RX_LB_BAND4_MIN_FREQ = 700e6; - constexpr double NEON_RX_LB_BAND5_MIN_FREQ = 1200e6; - constexpr double NEON_RX_LB_BAND6_MIN_FREQ = 1800e6; - constexpr double NEON_RX_LB_BAND7_MIN_FREQ = 2350e6; - constexpr double NEON_RX_HB_MIN_FREQ = 2600e6; +/* 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. NEON_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 NEON_RX_LB_BAND3_MIN_FREQ = 450e6; +constexpr double NEON_RX_LB_BAND4_MIN_FREQ = 700e6; +constexpr double NEON_RX_LB_BAND5_MIN_FREQ = 1200e6; +constexpr double NEON_RX_LB_BAND6_MIN_FREQ = 1800e6; +constexpr double NEON_RX_LB_BAND7_MIN_FREQ = 2350e6; +constexpr double NEON_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. NEON_TX_LB_160_MIN_FREQ is the cutover frequency - * for switching from LB_80 to LB_160, and so on. - * - * On current Neon revisions, 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 NEON_TX_LB_160_MIN_FREQ = 117.7e6; - constexpr double NEON_TX_LB_225_MIN_FREQ = 178.2e6; - constexpr double NEON_TX_LB_400_MIN_FREQ = 284.3e6; - constexpr double NEON_TX_LB_575_MIN_FREQ = 453.7e6; - constexpr double NEON_TX_LB_1000_MIN_FREQ = 723.8e6; - constexpr double NEON_TX_LB_1700_MIN_FREQ = 1154.9e6; - constexpr double NEON_TX_LB_2750_MIN_FREQ = 1842.6e6; - constexpr double NEON_TX_HB_MIN_FREQ = 2940.0e6; -} +/* 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. NEON_TX_LB_160_MIN_FREQ is the cutover frequency + * for switching from LB_80 to LB_160, and so on. + * + * On current Neon revisions, 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 NEON_TX_LB_160_MIN_FREQ = 117.7e6; +constexpr double NEON_TX_LB_225_MIN_FREQ = 178.2e6; +constexpr double NEON_TX_LB_400_MIN_FREQ = 284.3e6; +constexpr double NEON_TX_LB_575_MIN_FREQ = 453.7e6; +constexpr double NEON_TX_LB_1000_MIN_FREQ = 723.8e6; +constexpr double NEON_TX_LB_1700_MIN_FREQ = 1154.9e6; +constexpr double NEON_TX_LB_2750_MIN_FREQ = 1842.6e6; +constexpr double NEON_TX_HB_MIN_FREQ = 2940.0e6; +} // namespace -neon_radio_ctrl_impl::rx_band -neon_radio_ctrl_impl::_map_freq_to_rx_band(const double freq) { +neon_radio_ctrl_impl::rx_band neon_radio_ctrl_impl::_map_freq_to_rx_band( + const double freq) +{ neon_radio_ctrl_impl::rx_band band; if (fp_compare_epsilon<double>(freq) < AD9361_RX_MIN_FREQ) { @@ -124,8 +125,9 @@ neon_radio_ctrl_impl::_map_freq_to_rx_band(const double freq) { return band; } -neon_radio_ctrl_impl::tx_band -neon_radio_ctrl_impl::_map_freq_to_tx_band(const double freq) { +neon_radio_ctrl_impl::tx_band neon_radio_ctrl_impl::_map_freq_to_tx_band( + const double freq) +{ neon_radio_ctrl_impl::tx_band band; if (fp_compare_epsilon<double>(freq) < AD9361_TX_MIN_FREQ) { @@ -154,4 +156,3 @@ neon_radio_ctrl_impl::_map_freq_to_tx_band(const double freq) { return band; } - |