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-rw-r--r--host/lib/usrp/dboard/twinrx/twinrx_ctrl.cpp122
1 files changed, 60 insertions, 62 deletions
diff --git a/host/lib/usrp/dboard/twinrx/twinrx_ctrl.cpp b/host/lib/usrp/dboard/twinrx/twinrx_ctrl.cpp
index 4b8cd5cd5..1b45805e7 100644
--- a/host/lib/usrp/dboard/twinrx/twinrx_ctrl.cpp
+++ b/host/lib/usrp/dboard/twinrx/twinrx_ctrl.cpp
@@ -25,6 +25,7 @@ namespace {
const double TWINRX_DESIRED_REFERENCE_FREQ = 50e6;
const double TWINRX_REV_AB_PFD_FREQ = 6.25e6;
const double TWINRX_REV_C_PFD_FREQ = 12.5e6;
+ const double TWINRX_SPI_CLOCK_FREQ = 3e6;
}
class twinrx_ctrl_impl : public twinrx_ctrl {
@@ -36,48 +37,28 @@ public:
const dboard_id_t rx_id
) : _db_iface(db_iface), _gpio_iface(gpio_iface), _cpld_regs(cpld_regmap)
{
+ // SPI configuration
+ _spi_config.use_custom_divider = true;
+ _spi_config.divider = std::ceil(_db_iface->get_codec_rate(dboard_iface::UNIT_TX) / TWINRX_SPI_CLOCK_FREQ);
- //Turn on switcher and wait for power good
- _gpio_iface->set_field(twinrx_gpio::FIELD_SWPS_EN, 1);
- size_t timeout_ms = 100;
- while (_gpio_iface->get_field(twinrx_gpio::FIELD_SWPS_PWR_GOOD) == 0) {
- std::this_thread::sleep_for(std::chrono::microseconds(1000));
- if (--timeout_ms == 0) {
- throw uhd::runtime_error("power supply failure");
- }
+ //Initialize dboard clocks
+ bool found_rate = false;
+ for(double rate: _db_iface->get_clock_rates(dboard_iface::UNIT_TX)) {
+ found_rate |= uhd::math::frequencies_are_equal(rate, TWINRX_DESIRED_REFERENCE_FREQ);
}
- //Initialize synthesizer objects
- if (rx_id == twinrx::TWINRX_REV_C_ID) {
- _lo1_iface[size_t(CH1)] = adf535x_iface::make_adf5356(
- std::bind(&twinrx_ctrl_impl::_write_lo_spi, this, dboard_iface::UNIT_TX, std::placeholders::_1));
- _lo1_iface[size_t(CH2)] = adf535x_iface::make_adf5356(
- std::bind(&twinrx_ctrl_impl::_write_lo_spi, this, dboard_iface::UNIT_TX, std::placeholders::_1));
-
- _lo1_iface[size_t(CH1)]->set_pfd_freq(TWINRX_REV_C_PFD_FREQ);
- _lo1_iface[size_t(CH2)]->set_pfd_freq(TWINRX_REV_C_PFD_FREQ);
-
- } else {
- _lo1_iface[size_t(CH1)] = adf535x_iface::make_adf5355(
- std::bind(&twinrx_ctrl_impl::_write_lo_spi, this, dboard_iface::UNIT_TX, std::placeholders::_1));
- _lo1_iface[size_t(CH2)] = adf535x_iface::make_adf5355(
- std::bind(&twinrx_ctrl_impl::_write_lo_spi, this, dboard_iface::UNIT_TX, std::placeholders::_1));
-
- _lo1_iface[size_t(CH1)]->set_pfd_freq(TWINRX_REV_AB_PFD_FREQ);
- _lo1_iface[size_t(CH2)]->set_pfd_freq(TWINRX_REV_AB_PFD_FREQ);
+ for(double rate: _db_iface->get_clock_rates(dboard_iface::UNIT_RX)) {
+ found_rate |= uhd::math::frequencies_are_equal(rate, TWINRX_DESIRED_REFERENCE_FREQ);
}
+ if (not found_rate) {
+ throw uhd::runtime_error("TwinRX not supported on this motherboard");
+ }
+ _db_iface->set_clock_rate(dboard_iface::UNIT_TX, TWINRX_DESIRED_REFERENCE_FREQ);
+ _db_iface->set_clock_rate(dboard_iface::UNIT_RX, TWINRX_DESIRED_REFERENCE_FREQ);
- _lo2_iface[size_t(CH1)] = adf435x_iface::make_adf4351(
- boost::bind(&twinrx_ctrl_impl::_write_lo_spi, this, dboard_iface::UNIT_RX, _1));
- _lo2_iface[size_t(CH2)] = adf435x_iface::make_adf4351(
- boost::bind(&twinrx_ctrl_impl::_write_lo_spi, this, dboard_iface::UNIT_RX, _1));
-
- // Assert synthesizer chip enables
- _gpio_iface->set_field(twinrx_gpio::FIELD_LO1_CE_CH1, 1);
- _gpio_iface->set_field(twinrx_gpio::FIELD_LO1_CE_CH2, 1);
- _gpio_iface->set_field(twinrx_gpio::FIELD_LO2_CE_CH1, 1);
- _gpio_iface->set_field(twinrx_gpio::FIELD_LO2_CE_CH2, 1);
+ _db_iface->set_clock_enabled(dboard_iface::UNIT_TX, true);
+ _db_iface->set_clock_enabled(dboard_iface::UNIT_RX, true);
- //Initialize default state
+ //Initialize default switch and attenuator states
set_chan_enabled(BOTH, false, false);
set_preamp1(BOTH, PREAMP_BYPASS, false);
set_preamp2(BOTH, false, false);
@@ -94,40 +75,59 @@ public:
set_lo2_export_source(LO_EXPORT_DISABLED, false);
set_antenna_mapping(ANTX_NATIVE, false);
set_crossover_cal_mode(CAL_DISABLED, false);
- commit();
- //Initialize clocks and LO
- bool found_rate = false;
- for(double rate: _db_iface->get_clock_rates(dboard_iface::UNIT_TX)) {
- found_rate |= uhd::math::frequencies_are_equal(rate, TWINRX_DESIRED_REFERENCE_FREQ);
- }
- for(double rate: _db_iface->get_clock_rates(dboard_iface::UNIT_RX)) {
- found_rate |= uhd::math::frequencies_are_equal(rate, TWINRX_DESIRED_REFERENCE_FREQ);
- }
- if (not found_rate) {
- throw uhd::runtime_error("TwinRX not supported on this motherboard");
+ //Turn on power and wait for power good
+ _gpio_iface->set_field(twinrx_gpio::FIELD_SWPS_EN, 1);
+ size_t timeout_ms = 100;
+ while (_gpio_iface->get_field(twinrx_gpio::FIELD_SWPS_PWR_GOOD) == 0) {
+ std::this_thread::sleep_for(std::chrono::microseconds(1000));
+ if (--timeout_ms == 0) {
+ throw uhd::runtime_error("power supply failure");
+ }
}
- _db_iface->set_clock_rate(dboard_iface::UNIT_TX, TWINRX_DESIRED_REFERENCE_FREQ);
- _db_iface->set_clock_rate(dboard_iface::UNIT_RX, TWINRX_DESIRED_REFERENCE_FREQ);
- _db_iface->set_clock_enabled(dboard_iface::UNIT_TX, true);
- _db_iface->set_clock_enabled(dboard_iface::UNIT_RX, true);
+ // Assert synthesizer chip enables
+ _gpio_iface->set_field(twinrx_gpio::FIELD_LO1_CE_CH1, 1);
+ _gpio_iface->set_field(twinrx_gpio::FIELD_LO1_CE_CH2, 1);
+ _gpio_iface->set_field(twinrx_gpio::FIELD_LO2_CE_CH1, 1);
+ _gpio_iface->set_field(twinrx_gpio::FIELD_LO2_CE_CH2, 1);
+
+ //Initialize synthesizers
for (size_t i = 0; i < NUM_CHANS; i++) {
- _config_lo1_route(i==0?LO_CONFIG_CH1:LO_CONFIG_CH2);
- _config_lo2_route(i==0?LO_CONFIG_CH1:LO_CONFIG_CH2);
+ // LO1
+ if (rx_id == twinrx::TWINRX_REV_C_ID) {
+ _lo1_iface[i] = adf535x_iface::make_adf5356(
+ [this](const std::vector<uint32_t>& regs) {
+ _write_lo_spi(dboard_iface::UNIT_TX, regs);
+ }
+ );
+ _lo1_iface[i]->set_pfd_freq(TWINRX_REV_C_PFD_FREQ);
+
+ } else {
+ _lo1_iface[i] = adf535x_iface::make_adf5355(
+ [this](const std::vector<uint32_t>& regs) {
+ _write_lo_spi(dboard_iface::UNIT_TX, regs);
+ }
+ );
+ _lo1_iface[i]->set_pfd_freq(TWINRX_REV_AB_PFD_FREQ);
+ }
_lo1_iface[i]->set_output_power(adf535x_iface::OUTPUT_POWER_5DBM);
_lo1_iface[i]->set_reference_freq(TWINRX_DESIRED_REFERENCE_FREQ);
_lo1_iface[i]->set_muxout_mode(adf535x_iface::MUXOUT_DLD);
_lo1_iface[i]->set_frequency(3e9, 1.0e3);
+
+ // LO2
+ _lo2_iface[i] = adf435x_iface::make_adf4351(
+ [this](const std::vector<uint32_t>& regs) {
+ _write_lo_spi(dboard_iface::UNIT_RX, regs);
+ }
+ );
_lo2_iface[i]->set_feedback_select(adf435x_iface::FB_SEL_DIVIDED);
_lo2_iface[i]->set_output_power(adf435x_iface::OUTPUT_POWER_5DBM);
_lo2_iface[i]->set_reference_freq(TWINRX_DESIRED_REFERENCE_FREQ);
_lo2_iface[i]->set_muxout_mode(adf435x_iface::MUXOUT_DLD);
- _lo1_iface[i]->commit();
- _lo2_iface[i]->commit();
}
- _config_lo1_route(LO_CONFIG_NONE);
- _config_lo2_route(LO_CONFIG_NONE);
+ commit();
}
~twinrx_ctrl_impl()
@@ -527,10 +527,7 @@ private: //Functions
void _write_lo_spi(dboard_iface::unit_t unit, const std::vector<uint32_t> &regs)
{
for(uint32_t reg: regs) {
- spi_config_t spi_config = spi_config_t(spi_config_t::EDGE_RISE);
- spi_config.use_custom_divider = true;
- spi_config.divider = 67;
- _db_iface->write_spi(unit, spi_config, reg, 32);
+ _db_iface->write_spi(unit, _spi_config, reg, 32);
}
}
@@ -644,6 +641,7 @@ private: //Members
dboard_iface::sptr _db_iface;
twinrx_gpio::sptr _gpio_iface;
twinrx_cpld_regmap::sptr _cpld_regs;
+ spi_config_t _spi_config;
adf535x_iface::sptr _lo1_iface[NUM_CHANS];
adf435x_iface::sptr _lo2_iface[NUM_CHANS];
lo_source_t _lo1_src[NUM_CHANS];
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 22:58:47 +0000