From f92821a275db90e7fa95d64831f4a3f33e533ad0 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Tue, 26 Apr 2011 14:47:21 -0700 Subject: wbx: split wbx into daughterboard and granddaughterboard implementation --- host/lib/usrp/dboard/CMakeLists.txt | 5 +- host/lib/usrp/dboard/db_wbx.cpp | 677 --------------------------------- host/lib/usrp/dboard/db_wbx_common.cpp | 555 +++++++++++++++++++++++++++ host/lib/usrp/dboard/db_wbx_common.hpp | 72 ++++ host/lib/usrp/dboard/db_wbx_simple.cpp | 251 ++++++++++++ 5 files changed, 881 insertions(+), 679 deletions(-) delete mode 100644 host/lib/usrp/dboard/db_wbx.cpp create mode 100644 host/lib/usrp/dboard/db_wbx_common.cpp create mode 100644 host/lib/usrp/dboard/db_wbx_common.hpp create mode 100644 host/lib/usrp/dboard/db_wbx_simple.cpp (limited to 'host/lib/usrp/dboard') diff --git a/host/lib/usrp/dboard/CMakeLists.txt b/host/lib/usrp/dboard/CMakeLists.txt index 7bd201294..1687713a9 100644 --- a/host/lib/usrp/dboard/CMakeLists.txt +++ b/host/lib/usrp/dboard/CMakeLists.txt @@ -1,5 +1,5 @@ # -# Copyright 2010 Ettus Research LLC +# Copyright 2010-2011 Ettus Research LLC # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -23,7 +23,8 @@ LIBUHD_APPEND_SOURCES( ${CMAKE_CURRENT_SOURCE_DIR}/db_basic_and_lf.cpp ${CMAKE_CURRENT_SOURCE_DIR}/db_rfx.cpp ${CMAKE_CURRENT_SOURCE_DIR}/db_xcvr2450.cpp - ${CMAKE_CURRENT_SOURCE_DIR}/db_wbx.cpp + ${CMAKE_CURRENT_SOURCE_DIR}/db_wbx_common.cpp + ${CMAKE_CURRENT_SOURCE_DIR}/db_wbx_simple.cpp ${CMAKE_CURRENT_SOURCE_DIR}/db_dbsrx.cpp ${CMAKE_CURRENT_SOURCE_DIR}/db_unknown.cpp ${CMAKE_CURRENT_SOURCE_DIR}/db_tvrx.cpp diff --git a/host/lib/usrp/dboard/db_wbx.cpp b/host/lib/usrp/dboard/db_wbx.cpp deleted file mode 100644 index 2e9a1edc8..000000000 --- a/host/lib/usrp/dboard/db_wbx.cpp +++ /dev/null @@ -1,677 +0,0 @@ -// -// Copyright 2010-2011 Ettus Research LLC -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see . -// - -// Common IO Pins -#define ANTSW_IO ((1 << 5)|(1 << 15)) // on UNIT_TX, 0 = TX, 1 = RX, on UNIT_RX 0 = main ant, 1 = RX2 -#define ADF4350_CE (1 << 3) -#define ADF4350_PDBRF (1 << 2) -#define ADF4350_MUXOUT (1 << 1) // INPUT!!! -#define LOCKDET_MASK (1 << 0) // INPUT!!! - -// TX IO Pins -#define TX_PUP_5V (1 << 7) // enables 5.0V power supply -#define TX_PUP_3V (1 << 6) // enables 3.3V supply -#define TXMOD_EN (1 << 4) // on UNIT_TX, 1 enables TX Modulator - -// RX IO Pins -#define RX_PUP_5V (1 << 7) // enables 5.0V power supply -#define RX_PUP_3V (1 << 6) // enables 3.3V supply -#define RXBB_PDB (1 << 4) // on UNIT_RX, 1 powers up RX baseband - -// RX Attenuator Pins -#define RX_ATTN_SHIFT 8 // lsb of RX Attenuator Control -#define RX_ATTN_MASK (63 << RX_ATTN_SHIFT) // valid bits of RX Attenuator Control - -// Mixer functions -#define TX_MIXER_ENB (TXMOD_EN|ADF4350_PDBRF) -#define TX_MIXER_DIS 0 - -#define RX_MIXER_ENB (RXBB_PDB|ADF4350_PDBRF) -#define RX_MIXER_DIS 0 - -// Pin functions -#define TX_POWER_IO (TX_PUP_5V|TX_PUP_3V) // high enables power supply -#define TXIO_MASK (TX_POWER_IO|ANTSW_IO|ADF4350_CE|ADF4350_PDBRF|TXMOD_EN) - -#define RX_POWER_IO (RX_PUP_5V|RX_PUP_3V) // high enables power supply -#define RXIO_MASK (RX_POWER_IO|ANTSW_IO|ADF4350_CE|ADF4350_PDBRF|RXBB_PDB|RX_ATTN_MASK) - -// Power functions -#define TX_POWER_UP (TX_POWER_IO|ADF4350_CE) -#define TX_POWER_DOWN 0 - -#define RX_POWER_UP (RX_POWER_IO|ADF4350_CE) -#define RX_POWER_DOWN 0 - -// Antenna constants -#define ANT_TX 0 //the tx line is transmitting -#define ANT_RX ANTSW_IO //the tx line is receiving -#define ANT_TXRX 0 //the rx line is on txrx -#define ANT_RX2 ANTSW_IO //the rx line in on rx2 -#define ANT_XX 0 //dont care how the antenna is set - -#include "adf4350_regs.hpp" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -using namespace uhd; -using namespace uhd::usrp; -using namespace boost::assign; - -/*********************************************************************** - * The WBX dboard constants - **********************************************************************/ -static const bool wbx_debug = false; - -static const freq_range_t wbx_freq_range(68.75e6, 2.2e9); - -static const prop_names_t wbx_tx_antennas = list_of("TX/RX"); - -static const prop_names_t wbx_rx_antennas = list_of("TX/RX")("RX2"); - -static const uhd::dict wbx_tx_gain_ranges = map_list_of - ("PGA0", gain_range_t(0, 25, 0.05)) -; - -static const uhd::dict wbx_rx_gain_ranges = map_list_of - ("PGA0", gain_range_t(0, 31.5, 0.5)) -; - -/*********************************************************************** - * The WBX dboard - **********************************************************************/ -class wbx_xcvr : public xcvr_dboard_base{ -public: - wbx_xcvr(ctor_args_t args); - ~wbx_xcvr(void); - - void rx_get(const wax::obj &key, wax::obj &val); - void rx_set(const wax::obj &key, const wax::obj &val); - - void tx_get(const wax::obj &key, wax::obj &val); - void tx_set(const wax::obj &key, const wax::obj &val); - -private: - uhd::dict _tx_gains, _rx_gains; - double _rx_lo_freq, _tx_lo_freq; - std::string _tx_ant, _rx_ant; - - void set_rx_lo_freq(double freq); - void set_tx_lo_freq(double freq); - void set_rx_ant(const std::string &ant); - void set_tx_ant(const std::string &ant); - void set_rx_gain(double gain, const std::string &name); - void set_tx_gain(double gain, const std::string &name); - - void update_atr(void); - - /*! - * Set the LO frequency for the particular dboard unit. - * \param unit which unit rx or tx - * \param target_freq the desired frequency in Hz - * \return the actual frequency in Hz - */ - double set_lo_freq(dboard_iface::unit_t unit, double target_freq); - - /*! - * Get the lock detect status of the LO. - * \param unit which unit rx or tx - * \return true for locked - */ - bool get_locked(dboard_iface::unit_t unit){ - return (this->get_iface()->read_gpio(unit) & LOCKDET_MASK) != 0; - } -}; - -/*********************************************************************** - * Register the WBX dboard (min freq, max freq, rx div2, tx div2) - **********************************************************************/ -static dboard_base::sptr make_wbx(dboard_base::ctor_args_t args){ - return dboard_base::sptr(new wbx_xcvr(args)); -} - -UHD_STATIC_BLOCK(reg_wbx_dboards){ - dboard_manager::register_dboard(0x0053, 0x0052, &make_wbx, "WBX"); -} - -/*********************************************************************** - * Structors - **********************************************************************/ -wbx_xcvr::wbx_xcvr(ctor_args_t args) : xcvr_dboard_base(args){ - - //enable the clocks that we need - this->get_iface()->set_clock_enabled(dboard_iface::UNIT_TX, true); - this->get_iface()->set_clock_enabled(dboard_iface::UNIT_RX, true); - - //set the gpio directions and atr controls (identically) - this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_TX, TXIO_MASK); - this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_RX, RXIO_MASK); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, TXIO_MASK); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, RXIO_MASK); - if (wbx_debug) std::cerr << boost::format( - "WBX GPIO Direction: RX: 0x%08x, TX: 0x%08x" - ) % RXIO_MASK % TXIO_MASK << std::endl; - - //set some default values - set_rx_lo_freq((wbx_freq_range.start() + wbx_freq_range.stop())/2.0); - set_tx_lo_freq((wbx_freq_range.start() + wbx_freq_range.stop())/2.0); - set_rx_ant("RX2"); - - BOOST_FOREACH(const std::string &name, wbx_tx_gain_ranges.keys()){ - set_tx_gain(wbx_tx_gain_ranges[name].start(), name); - } - BOOST_FOREACH(const std::string &name, wbx_rx_gain_ranges.keys()){ - set_rx_gain(wbx_rx_gain_ranges[name].start(), name); - } -} - -wbx_xcvr::~wbx_xcvr(void){ - /* NOP */ -} - -/*********************************************************************** - * Gain Handling - **********************************************************************/ -static int rx_pga0_gain_to_iobits(double &gain){ - //clip the input - gain = wbx_rx_gain_ranges["PGA0"].clip(gain); - - //convert to attenuation and update iobits for atr - double attn = wbx_rx_gain_ranges["PGA0"].stop() - gain; - - //calculate the attenuation - int attn_code = boost::math::iround(attn*2); - int iobits = ((~attn_code) << RX_ATTN_SHIFT) & RX_ATTN_MASK; - - if (wbx_debug) std::cerr << boost::format( - "WBX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x" - ) % attn % attn_code % (iobits & RX_ATTN_MASK) % RX_ATTN_MASK << std::endl; - - //the actual gain setting - gain = wbx_rx_gain_ranges["PGA0"].stop() - double(attn_code)/2; - - return iobits; -} - -static double tx_pga0_gain_to_dac_volts(double &gain){ - //clip the input - gain = wbx_tx_gain_ranges["PGA0"].clip(gain); - - //voltage level constants - static const double max_volts = 0.5, min_volts = 1.4; - static const double slope = (max_volts-min_volts)/wbx_tx_gain_ranges["PGA0"].stop(); - - //calculate the voltage for the aux dac - double dac_volts = gain*slope + min_volts; - - if (wbx_debug) std::cerr << boost::format( - "WBX TX Gain: %f dB, dac_volts: %f V" - ) % gain % dac_volts << std::endl; - - //the actual gain setting - gain = (dac_volts - min_volts)/slope; - - return dac_volts; -} - -void wbx_xcvr::set_tx_gain(double gain, const std::string &name){ - assert_has(wbx_tx_gain_ranges.keys(), name, "wbx tx gain name"); - if(name == "PGA0"){ - double dac_volts = tx_pga0_gain_to_dac_volts(gain); - _tx_gains[name] = gain; - - //write the new voltage to the aux dac - this->get_iface()->write_aux_dac(dboard_iface::UNIT_TX, dboard_iface::AUX_DAC_A, dac_volts); - } - else UHD_THROW_INVALID_CODE_PATH(); -} - -void wbx_xcvr::set_rx_gain(double gain, const std::string &name){ - assert_has(wbx_rx_gain_ranges.keys(), name, "wbx rx gain name"); - if(name == "PGA0"){ - rx_pga0_gain_to_iobits(gain); - _rx_gains[name] = gain; - - //write the new gain to atr regs - update_atr(); - } - else UHD_THROW_INVALID_CODE_PATH(); -} - -/*********************************************************************** - * Antenna Handling - **********************************************************************/ -void wbx_xcvr::update_atr(void){ - //calculate atr pins - int pga0_iobits = rx_pga0_gain_to_iobits(_rx_gains["PGA0"]); - - //setup the tx atr (this does not change with antenna) - this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_IDLE, TX_POWER_UP | ANT_XX | TX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_RX_ONLY, TX_POWER_UP | ANT_RX | TX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_TX_ONLY, TX_POWER_UP | ANT_TX | TX_MIXER_ENB); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_FULL_DUPLEX, TX_POWER_UP | ANT_TX | TX_MIXER_ENB); - - //setup the rx atr (this does not change with antenna) - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_IDLE, - pga0_iobits | RX_POWER_UP | ANT_XX | RX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_TX_ONLY, - pga0_iobits | RX_POWER_UP | ANT_XX | RX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, - pga0_iobits | RX_POWER_UP | ANT_RX2| RX_MIXER_ENB); - - //set the rx atr regs that change with antenna setting - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_RX_ONLY, - pga0_iobits | RX_POWER_UP | RX_MIXER_ENB | ((_rx_ant == "TX/RX")? ANT_TXRX : ANT_RX2)); - if (wbx_debug) std::cerr << boost::format( - "WBX RXONLY ATR REG: 0x%08x" - ) % (pga0_iobits | RX_POWER_UP | RX_MIXER_ENB | ((_rx_ant == "TX/RX")? ANT_TXRX : ANT_RX2)) << std::endl; -} - -void wbx_xcvr::set_rx_ant(const std::string &ant){ - //validate input - assert_has(wbx_rx_antennas, ant, "wbx rx antenna name"); - - //shadow the setting - _rx_ant = ant; - - //write the new antenna setting to atr regs - update_atr(); -} - -void wbx_xcvr::set_tx_ant(const std::string &ant){ - assert_has(wbx_tx_antennas, ant, "wbx tx antenna name"); - //only one antenna option, do nothing -} - -/*********************************************************************** - * Tuning - **********************************************************************/ -void wbx_xcvr::set_rx_lo_freq(double freq){ - _rx_lo_freq = set_lo_freq(dboard_iface::UNIT_RX, freq); -} - -void wbx_xcvr::set_tx_lo_freq(double freq){ - _tx_lo_freq = set_lo_freq(dboard_iface::UNIT_TX, freq); -} - -double wbx_xcvr::set_lo_freq( - dboard_iface::unit_t unit, - double target_freq -){ - if (wbx_debug) std::cerr << boost::format( - "WBX tune: target frequency %f Mhz" - ) % (target_freq/1e6) << std::endl; - - //clip the input - target_freq = wbx_freq_range.clip(target_freq); - - //map prescaler setting to mininmum integer divider (N) values (pg.18 prescaler) - static const uhd::dict prescaler_to_min_int_div = map_list_of - (0,23) //adf4350_regs_t::PRESCALER_4_5 - (1,75) //adf4350_regs_t::PRESCALER_8_9 - ; - - //map rf divider select output dividers to enums - static const uhd::dict rfdivsel_to_enum = map_list_of - (1, adf4350_regs_t::RF_DIVIDER_SELECT_DIV1) - (2, adf4350_regs_t::RF_DIVIDER_SELECT_DIV2) - (4, adf4350_regs_t::RF_DIVIDER_SELECT_DIV4) - (8, adf4350_regs_t::RF_DIVIDER_SELECT_DIV8) - (16, adf4350_regs_t::RF_DIVIDER_SELECT_DIV16) - ; - - double actual_freq, pfd_freq; - double ref_freq = this->get_iface()->get_clock_rate(unit); - int R=0, BS=0, N=0, FRAC=0, MOD=0; - int RFdiv = 1; - adf4350_regs_t::reference_divide_by_2_t T = adf4350_regs_t::REFERENCE_DIVIDE_BY_2_DISABLED; - adf4350_regs_t::reference_doubler_t D = adf4350_regs_t::REFERENCE_DOUBLER_DISABLED; - - //Reference doubler for 50% duty cycle - // if ref_freq < 12.5MHz enable regs.reference_divide_by_2 - if(ref_freq <= 12.5e6) D = adf4350_regs_t::REFERENCE_DOUBLER_ENABLED; - - //increase RF divider until acceptable VCO frequency - //start with target_freq*2 because mixer has divide by 2 - double vco_freq = target_freq*2; - while (vco_freq < 2.2e9) { - vco_freq *= 2; - RFdiv *= 2; - } - - //use 8/9 prescaler for vco_freq > 3 GHz (pg.18 prescaler) - adf4350_regs_t::prescaler_t prescaler = vco_freq > 3e9 ? adf4350_regs_t::PRESCALER_8_9 : adf4350_regs_t::PRESCALER_4_5; - - /* - * The goal here is to loop though possible R dividers, - * band select clock dividers, N (int) dividers, and FRAC - * (frac) dividers. - * - * Calculate the N and F dividers for each set of values. - * The loop exists when it meets all of the constraints. - * The resulting loop values are loaded into the registers. - * - * from pg.21 - * - * f_pfd = f_ref*(1+D)/(R*(1+T)) - * f_vco = (N + (FRAC/MOD))*f_pfd - * N = f_vco/f_pfd - FRAC/MOD = f_vco*((R*(T+1))/(f_ref*(1+D))) - FRAC/MOD - * f_rf = f_vco/RFdiv) - * f_actual = f_rf/2 - */ - for(R = 1; R <= 1023; R+=1){ - //PFD input frequency = f_ref/R ... ignoring Reference doubler/divide-by-2 (D & T) - pfd_freq = ref_freq*(1+D)/(R*(1+T)); - - //keep the PFD frequency at or below 25MHz (Loop Filter Bandwidth) - if (pfd_freq > 25e6) continue; - - //ignore fractional part of tuning - N = int(std::floor(vco_freq/pfd_freq)); - - //keep N > minimum int divider requirement - if (N < prescaler_to_min_int_div[prescaler]) continue; - - for(BS=1; BS <= 255; BS+=1){ - //keep the band select frequency at or below 100KHz - //constraint on band select clock - if (pfd_freq/BS > 100e3) continue; - goto done_loop; - } - } done_loop: - - //Fractional-N calculation - MOD = 4095; //max fractional accuracy - FRAC = int((vco_freq/pfd_freq - N)*MOD); - - //Reference divide-by-2 for 50% duty cycle - // if R even, move one divide by 2 to to regs.reference_divide_by_2 - if(R % 2 == 0){ - T = adf4350_regs_t::REFERENCE_DIVIDE_BY_2_ENABLED; - R /= 2; - } - - //actual frequency calculation - actual_freq = double((N + (double(FRAC)/double(MOD)))*ref_freq*(1+int(D))/(R*(1+int(T)))/RFdiv/2); - - - if (wbx_debug) { - std::cerr << boost::format("WBX Intermediates: ref=%0.2f, outdiv=%f, fbdiv=%f") % (ref_freq*(1+int(D))/(R*(1+int(T)))) % double(RFdiv*2) % double(N + double(FRAC)/double(MOD)) << std::endl; - - std::cerr << boost::format("WBX tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d, LD=%d" - ) % R % BS % N % FRAC % MOD % T % D % RFdiv % get_locked(unit)<< std::endl - << boost::format("WBX Frequencies (MHz): REQ=%0.2f, ACT=%0.2f, VCO=%0.2f, PFD=%0.2f, BAND=%0.2f" - ) % (target_freq/1e6) % (actual_freq/1e6) % (vco_freq/1e6) % (pfd_freq/1e6) % (pfd_freq/BS/1e6) << std::endl; - } - - //load the register values - adf4350_regs_t regs; - - regs.frac_12_bit = FRAC; - regs.int_16_bit = N; - regs.mod_12_bit = MOD; - regs.prescaler = prescaler; - regs.r_counter_10_bit = R; - regs.reference_divide_by_2 = T; - regs.reference_doubler = D; - regs.band_select_clock_div = BS; - UHD_ASSERT_THROW(rfdivsel_to_enum.has_key(RFdiv)); - regs.rf_divider_select = rfdivsel_to_enum[RFdiv]; - - //write the registers - //correct power-up sequence to write registers (5, 4, 3, 2, 1, 0) - int addr; - - for(addr=5; addr>=0; addr--){ - if (wbx_debug) std::cerr << boost::format( - "WBX SPI Reg (0x%02x): 0x%08x" - ) % addr % regs.get_reg(addr) << std::endl; - this->get_iface()->write_spi( - unit, spi_config_t::EDGE_RISE, - regs.get_reg(addr), 32 - ); - } - - //return the actual frequency - if (wbx_debug) std::cerr << boost::format( - "WBX tune: actual frequency %f Mhz" - ) % (actual_freq/1e6) << std::endl; - return actual_freq; -} - -/*********************************************************************** - * RX Get and Set - **********************************************************************/ -void wbx_xcvr::rx_get(const wax::obj &key_, wax::obj &val){ - named_prop_t key = named_prop_t::extract(key_); - - //handle the get request conditioned on the key - switch(key.as()){ - case SUBDEV_PROP_NAME: - val = get_rx_id().to_pp_string(); - return; - - case SUBDEV_PROP_OTHERS: - val = prop_names_t(); //empty - return; - - case SUBDEV_PROP_GAIN: - assert_has(_rx_gains.keys(), key.name, "wbx rx gain name"); - val = _rx_gains[key.name]; - return; - - case SUBDEV_PROP_GAIN_RANGE: - assert_has(wbx_rx_gain_ranges.keys(), key.name, "wbx rx gain name"); - val = wbx_rx_gain_ranges[key.name]; - return; - - case SUBDEV_PROP_GAIN_NAMES: - val = prop_names_t(wbx_rx_gain_ranges.keys()); - return; - - case SUBDEV_PROP_FREQ: - val = _rx_lo_freq; - return; - - case SUBDEV_PROP_FREQ_RANGE: - val = wbx_freq_range; - return; - - case SUBDEV_PROP_ANTENNA: - val = _rx_ant; - return; - - case SUBDEV_PROP_ANTENNA_NAMES: - val = wbx_rx_antennas; - return; - - case SUBDEV_PROP_CONNECTION: - val = SUBDEV_CONN_COMPLEX_IQ; - return; - - case SUBDEV_PROP_ENABLED: - val = true; //always enabled - return; - - case SUBDEV_PROP_USE_LO_OFFSET: - val = false; - return; - - case SUBDEV_PROP_SENSOR: - UHD_ASSERT_THROW(key.name == "lo_locked"); - val = sensor_value_t("LO", this->get_locked(dboard_iface::UNIT_RX), "locked", "unlocked"); - return; - - case SUBDEV_PROP_SENSOR_NAMES: - val = prop_names_t(1, "lo_locked"); - return; - - case SUBDEV_PROP_BANDWIDTH: - val = 2*20.0e6; //20MHz low-pass, we want complex double-sided - return; - - default: UHD_THROW_PROP_GET_ERROR(); - } -} - -void wbx_xcvr::rx_set(const wax::obj &key_, const wax::obj &val){ - named_prop_t key = named_prop_t::extract(key_); - - //handle the get request conditioned on the key - switch(key.as()){ - - case SUBDEV_PROP_FREQ: - this->set_rx_lo_freq(val.as()); - return; - - case SUBDEV_PROP_GAIN: - this->set_rx_gain(val.as(), key.name); - return; - - case SUBDEV_PROP_ANTENNA: - this->set_rx_ant(val.as()); - return; - - case SUBDEV_PROP_ENABLED: - return; //always enabled - - case SUBDEV_PROP_BANDWIDTH: - uhd::warning::post( - str(boost::format("WBX: No tunable bandwidth, fixed filtered to 40MHz")) - ); - return; - - default: UHD_THROW_PROP_SET_ERROR(); - } -} - -/*********************************************************************** - * TX Get and Set - **********************************************************************/ -void wbx_xcvr::tx_get(const wax::obj &key_, wax::obj &val){ - named_prop_t key = named_prop_t::extract(key_); - - //handle the get request conditioned on the key - switch(key.as()){ - case SUBDEV_PROP_NAME: - val = get_tx_id().to_pp_string(); - return; - - case SUBDEV_PROP_OTHERS: - val = prop_names_t(); //empty - return; - - case SUBDEV_PROP_GAIN: - assert_has(_tx_gains.keys(), key.name, "wbx tx gain name"); - val = _tx_gains[key.name]; - return; - - case SUBDEV_PROP_GAIN_RANGE: - assert_has(wbx_tx_gain_ranges.keys(), key.name, "wbx tx gain name"); - val = wbx_tx_gain_ranges[key.name]; - return; - - case SUBDEV_PROP_GAIN_NAMES: - val = prop_names_t(wbx_tx_gain_ranges.keys()); - return; - - case SUBDEV_PROP_FREQ: - val = _tx_lo_freq; - return; - - case SUBDEV_PROP_FREQ_RANGE: - val = wbx_freq_range; - return; - - case SUBDEV_PROP_ANTENNA: - val = std::string("TX/RX"); - return; - - case SUBDEV_PROP_ANTENNA_NAMES: - val = wbx_tx_antennas; - return; - - case SUBDEV_PROP_CONNECTION: - val = SUBDEV_CONN_COMPLEX_IQ; - return; - - case SUBDEV_PROP_ENABLED: - val = true; //always enabled - return; - - case SUBDEV_PROP_USE_LO_OFFSET: - val = false; - return; - - case SUBDEV_PROP_SENSOR: - UHD_ASSERT_THROW(key.name == "lo_locked"); - val = sensor_value_t("LO", this->get_locked(dboard_iface::UNIT_TX), "locked", "unlocked"); - return; - - case SUBDEV_PROP_SENSOR_NAMES: - val = prop_names_t(1, "lo_locked"); - return; - - case SUBDEV_PROP_BANDWIDTH: - val = 2*20.0e6; //20MHz low-pass, we want complex double-sided - return; - - default: UHD_THROW_PROP_GET_ERROR(); - } -} - -void wbx_xcvr::tx_set(const wax::obj &key_, const wax::obj &val){ - named_prop_t key = named_prop_t::extract(key_); - - //handle the get request conditioned on the key - switch(key.as()){ - - case SUBDEV_PROP_FREQ: - this->set_tx_lo_freq(val.as()); - return; - - case SUBDEV_PROP_GAIN: - this->set_tx_gain(val.as(), key.name); - return; - - case SUBDEV_PROP_ANTENNA: - this->set_tx_ant(val.as()); - return; - - case SUBDEV_PROP_ENABLED: - return; //always enabled - - case SUBDEV_PROP_BANDWIDTH: - uhd::warning::post( - str(boost::format("WBX: No tunable bandwidth, fixed filtered to 40MHz")) - ); - return; - - default: UHD_THROW_PROP_SET_ERROR(); - } -} diff --git a/host/lib/usrp/dboard/db_wbx_common.cpp b/host/lib/usrp/dboard/db_wbx_common.cpp new file mode 100644 index 000000000..3ad2dac6a --- /dev/null +++ b/host/lib/usrp/dboard/db_wbx_common.cpp @@ -0,0 +1,555 @@ +// +// Copyright 2011 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// + +// Common IO Pins +#define ADF4350_CE (1 << 3) +#define ADF4350_PDBRF (1 << 2) +#define ADF4350_MUXOUT (1 << 1) // INPUT!!! +#define LOCKDET_MASK (1 << 0) // INPUT!!! + +// TX IO Pins +#define TX_PUP_5V (1 << 7) // enables 5.0V power supply +#define TX_PUP_3V (1 << 6) // enables 3.3V supply +#define TXMOD_EN (1 << 4) // on UNIT_TX, 1 enables TX Modulator + +// RX IO Pins +#define RX_PUP_5V (1 << 7) // enables 5.0V power supply +#define RX_PUP_3V (1 << 6) // enables 3.3V supply +#define RXBB_PDB (1 << 4) // on UNIT_RX, 1 powers up RX baseband + +// RX Attenuator Pins +#define RX_ATTN_SHIFT 8 // lsb of RX Attenuator Control +#define RX_ATTN_MASK (63 << RX_ATTN_SHIFT) // valid bits of RX Attenuator Control + +// Mixer functions +#define TX_MIXER_ENB (TXMOD_EN|ADF4350_PDBRF) +#define TX_MIXER_DIS 0 + +#define RX_MIXER_ENB (RXBB_PDB|ADF4350_PDBRF) +#define RX_MIXER_DIS 0 + +// Power functions +#define TX_POWER_UP (TX_PUP_5V|TX_PUP_3V|ADF4350_CE) // high enables power supply +#define TX_POWER_DOWN 0 + +#define RX_POWER_UP (RX_PUP_5V|RX_PUP_3V|ADF4350_CE) // high enables power supply +#define RX_POWER_DOWN 0 + +#include "db_wbx_common.hpp" +#include "adf4350_regs.hpp" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace uhd; +using namespace uhd::usrp; +using namespace boost::assign; + +/*********************************************************************** + * The WBX Common dboard constants + **********************************************************************/ +static const bool wbx_debug = false; + +static const uhd::dict wbx_tx_gain_ranges = map_list_of + ("PGA0", gain_range_t(0, 25, 0.05)) +; + +static const uhd::dict wbx_rx_gain_ranges = map_list_of + ("PGA0", gain_range_t(0, 31.5, 0.5)) +; + +/*********************************************************************** + * WBX Common Implementation + **********************************************************************/ +wbx_base::wbx_base(ctor_args_t args) : xcvr_dboard_base(args){ + + //enable the clocks that we need + this->get_iface()->set_clock_enabled(dboard_iface::UNIT_TX, true); + this->get_iface()->set_clock_enabled(dboard_iface::UNIT_RX, true); + + //set the gpio directions and atr controls + this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_TX, TXMOD_EN|ADF4350_PDBRF); + this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_RX, RXBB_PDB|ADF4350_PDBRF); + this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, TX_PUP_5V|TX_PUP_3V|ADF4350_CE|TXMOD_EN|ADF4350_PDBRF); + this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, RX_PUP_5V|RX_PUP_3V|ADF4350_CE|RXBB_PDB|ADF4350_PDBRF|RX_ATTN_MASK); + + //setup ATR for the mixer enables + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_IDLE, TX_MIXER_DIS, TX_MIXER_DIS | TX_MIXER_ENB); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_RX_ONLY, TX_MIXER_DIS, TX_MIXER_DIS | TX_MIXER_ENB); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_TX_ONLY, TX_MIXER_ENB, TX_MIXER_DIS | TX_MIXER_ENB); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_FULL_DUPLEX, TX_MIXER_ENB, TX_MIXER_DIS | TX_MIXER_ENB); + + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_IDLE, RX_MIXER_DIS, RX_MIXER_DIS | RX_MIXER_ENB); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_TX_ONLY, RX_MIXER_DIS, RX_MIXER_DIS | RX_MIXER_ENB); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_RX_ONLY, RX_MIXER_ENB, RX_MIXER_DIS | RX_MIXER_ENB); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, RX_MIXER_ENB, RX_MIXER_DIS | RX_MIXER_ENB); + + //set some default values + BOOST_FOREACH(const std::string &name, wbx_tx_gain_ranges.keys()){ + set_tx_gain(wbx_tx_gain_ranges[name].start(), name); + } + BOOST_FOREACH(const std::string &name, wbx_rx_gain_ranges.keys()){ + set_rx_gain(wbx_rx_gain_ranges[name].start(), name); + } + set_rx_enabled(false); + set_tx_enabled(false); +} + +wbx_base::~wbx_base(void){ + /* NOP */ +} + +/*********************************************************************** + * Enables + **********************************************************************/ +void wbx_base::set_rx_enabled(bool enb){ + this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, + (enb)? RX_POWER_UP : RX_POWER_DOWN, RX_POWER_UP | RX_POWER_DOWN + ); +} + +void wbx_base::set_tx_enabled(bool enb){ + this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, + (enb)? TX_POWER_UP : TX_POWER_DOWN, TX_POWER_UP | TX_POWER_DOWN + ); +} + +/*********************************************************************** + * Gain Handling + **********************************************************************/ +static int rx_pga0_gain_to_iobits(double &gain){ + //clip the input + gain = wbx_rx_gain_ranges["PGA0"].clip(gain); + + //convert to attenuation + double attn = wbx_rx_gain_ranges["PGA0"].stop() - gain; + + //calculate the attenuation + int attn_code = boost::math::iround(attn*2); + int iobits = ((~attn_code) << RX_ATTN_SHIFT) & RX_ATTN_MASK; + + if (wbx_debug) std::cerr << boost::format( + "WBX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x" + ) % attn % attn_code % (iobits & RX_ATTN_MASK) % RX_ATTN_MASK << std::endl; + + //the actual gain setting + gain = wbx_rx_gain_ranges["PGA0"].stop() - double(attn_code)/2; + + return iobits; +} + +static double tx_pga0_gain_to_dac_volts(double &gain){ + //clip the input + gain = wbx_tx_gain_ranges["PGA0"].clip(gain); + + //voltage level constants + static const double max_volts = 0.5, min_volts = 1.4; + static const double slope = (max_volts-min_volts)/wbx_tx_gain_ranges["PGA0"].stop(); + + //calculate the voltage for the aux dac + double dac_volts = gain*slope + min_volts; + + if (wbx_debug) std::cerr << boost::format( + "WBX TX Gain: %f dB, dac_volts: %f V" + ) % gain % dac_volts << std::endl; + + //the actual gain setting + gain = (dac_volts - min_volts)/slope; + + return dac_volts; +} + +void wbx_base::set_tx_gain(double gain, const std::string &name){ + assert_has(wbx_tx_gain_ranges.keys(), name, "wbx tx gain name"); + if(name == "PGA0"){ + double dac_volts = tx_pga0_gain_to_dac_volts(gain); + _tx_gains[name] = gain; + + //write the new voltage to the aux dac + this->get_iface()->write_aux_dac(dboard_iface::UNIT_TX, dboard_iface::AUX_DAC_A, dac_volts); + } + else UHD_THROW_INVALID_CODE_PATH(); +} + +void wbx_base::set_rx_gain(double gain, const std::string &name){ + assert_has(wbx_rx_gain_ranges.keys(), name, "wbx rx gain name"); + if(name == "PGA0"){ + boost::uint16_t io_bits = rx_pga0_gain_to_iobits(gain); + _rx_gains[name] = gain; + + //write the new gain to rx gpio outputs + this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, io_bits, RX_ATTN_MASK); + } + else UHD_THROW_INVALID_CODE_PATH(); +} + +/*********************************************************************** + * Tuning + **********************************************************************/ +double wbx_base::set_lo_freq( + dboard_iface::unit_t unit, + double target_freq +){ + if (wbx_debug) std::cerr << boost::format( + "WBX tune: target frequency %f Mhz" + ) % (target_freq/1e6) << std::endl; + + //map prescaler setting to mininmum integer divider (N) values (pg.18 prescaler) + static const uhd::dict prescaler_to_min_int_div = map_list_of + (0,23) //adf4350_regs_t::PRESCALER_4_5 + (1,75) //adf4350_regs_t::PRESCALER_8_9 + ; + + //map rf divider select output dividers to enums + static const uhd::dict rfdivsel_to_enum = map_list_of + (1, adf4350_regs_t::RF_DIVIDER_SELECT_DIV1) + (2, adf4350_regs_t::RF_DIVIDER_SELECT_DIV2) + (4, adf4350_regs_t::RF_DIVIDER_SELECT_DIV4) + (8, adf4350_regs_t::RF_DIVIDER_SELECT_DIV8) + (16, adf4350_regs_t::RF_DIVIDER_SELECT_DIV16) + ; + + double actual_freq, pfd_freq; + double ref_freq = this->get_iface()->get_clock_rate(unit); + int R=0, BS=0, N=0, FRAC=0, MOD=0; + int RFdiv = 1; + adf4350_regs_t::reference_divide_by_2_t T = adf4350_regs_t::REFERENCE_DIVIDE_BY_2_DISABLED; + adf4350_regs_t::reference_doubler_t D = adf4350_regs_t::REFERENCE_DOUBLER_DISABLED; + + //Reference doubler for 50% duty cycle + // if ref_freq < 12.5MHz enable regs.reference_divide_by_2 + if(ref_freq <= 12.5e6) D = adf4350_regs_t::REFERENCE_DOUBLER_ENABLED; + + //increase RF divider until acceptable VCO frequency + //start with target_freq*2 because mixer has divide by 2 + double vco_freq = target_freq*2; + while (vco_freq < 2.2e9) { + vco_freq *= 2; + RFdiv *= 2; + } + + //use 8/9 prescaler for vco_freq > 3 GHz (pg.18 prescaler) + adf4350_regs_t::prescaler_t prescaler = vco_freq > 3e9 ? adf4350_regs_t::PRESCALER_8_9 : adf4350_regs_t::PRESCALER_4_5; + + /* + * The goal here is to loop though possible R dividers, + * band select clock dividers, N (int) dividers, and FRAC + * (frac) dividers. + * + * Calculate the N and F dividers for each set of values. + * The loop exists when it meets all of the constraints. + * The resulting loop values are loaded into the registers. + * + * from pg.21 + * + * f_pfd = f_ref*(1+D)/(R*(1+T)) + * f_vco = (N + (FRAC/MOD))*f_pfd + * N = f_vco/f_pfd - FRAC/MOD = f_vco*((R*(T+1))/(f_ref*(1+D))) - FRAC/MOD + * f_rf = f_vco/RFdiv) + * f_actual = f_rf/2 + */ + for(R = 1; R <= 1023; R+=1){ + //PFD input frequency = f_ref/R ... ignoring Reference doubler/divide-by-2 (D & T) + pfd_freq = ref_freq*(1+D)/(R*(1+T)); + + //keep the PFD frequency at or below 25MHz (Loop Filter Bandwidth) + if (pfd_freq > 25e6) continue; + + //ignore fractional part of tuning + N = int(std::floor(vco_freq/pfd_freq)); + + //keep N > minimum int divider requirement + if (N < prescaler_to_min_int_div[prescaler]) continue; + + for(BS=1; BS <= 255; BS+=1){ + //keep the band select frequency at or below 100KHz + //constraint on band select clock + if (pfd_freq/BS > 100e3) continue; + goto done_loop; + } + } done_loop: + + //Fractional-N calculation + MOD = 4095; //max fractional accuracy + FRAC = int((vco_freq/pfd_freq - N)*MOD); + + //Reference divide-by-2 for 50% duty cycle + // if R even, move one divide by 2 to to regs.reference_divide_by_2 + if(R % 2 == 0){ + T = adf4350_regs_t::REFERENCE_DIVIDE_BY_2_ENABLED; + R /= 2; + } + + //actual frequency calculation + actual_freq = double((N + (double(FRAC)/double(MOD)))*ref_freq*(1+int(D))/(R*(1+int(T)))/RFdiv/2); + + + if (wbx_debug) { + std::cerr << boost::format("WBX Intermediates: ref=%0.2f, outdiv=%f, fbdiv=%f") % (ref_freq*(1+int(D))/(R*(1+int(T)))) % double(RFdiv*2) % double(N + double(FRAC)/double(MOD)) << std::endl; + + std::cerr << boost::format("WBX tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d, LD=%d" + ) % R % BS % N % FRAC % MOD % T % D % RFdiv % get_locked(unit)<< std::endl + << boost::format("WBX Frequencies (MHz): REQ=%0.2f, ACT=%0.2f, VCO=%0.2f, PFD=%0.2f, BAND=%0.2f" + ) % (target_freq/1e6) % (actual_freq/1e6) % (vco_freq/1e6) % (pfd_freq/1e6) % (pfd_freq/BS/1e6) << std::endl; + } + + //load the register values + adf4350_regs_t regs; + + regs.frac_12_bit = FRAC; + regs.int_16_bit = N; + regs.mod_12_bit = MOD; + regs.prescaler = prescaler; + regs.r_counter_10_bit = R; + regs.reference_divide_by_2 = T; + regs.reference_doubler = D; + regs.band_select_clock_div = BS; + UHD_ASSERT_THROW(rfdivsel_to_enum.has_key(RFdiv)); + regs.rf_divider_select = rfdivsel_to_enum[RFdiv]; + + //write the registers + //correct power-up sequence to write registers (5, 4, 3, 2, 1, 0) + int addr; + + for(addr=5; addr>=0; addr--){ + if (wbx_debug) std::cerr << boost::format( + "WBX SPI Reg (0x%02x): 0x%08x" + ) % addr % regs.get_reg(addr) << std::endl; + this->get_iface()->write_spi( + unit, spi_config_t::EDGE_RISE, + regs.get_reg(addr), 32 + ); + } + + //return the actual frequency + if (wbx_debug) std::cerr << boost::format( + "WBX tune: actual frequency %f Mhz" + ) % (actual_freq/1e6) << std::endl; + return actual_freq; +} + +bool wbx_base::get_locked(dboard_iface::unit_t unit){ + return (this->get_iface()->read_gpio(unit) & LOCKDET_MASK) != 0; +} + +/*********************************************************************** + * RX Get and Set + **********************************************************************/ +void wbx_base::rx_get(const wax::obj &key_, wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + case SUBDEV_PROP_NAME: + val = get_rx_id().to_pp_string(); + return; + + case SUBDEV_PROP_OTHERS: + val = prop_names_t(); //empty + return; + + case SUBDEV_PROP_GAIN: + assert_has(_rx_gains.keys(), key.name, "wbx rx gain name"); + val = _rx_gains[key.name]; + return; + + case SUBDEV_PROP_GAIN_RANGE: + assert_has(wbx_rx_gain_ranges.keys(), key.name, "wbx rx gain name"); + val = wbx_rx_gain_ranges[key.name]; + return; + + case SUBDEV_PROP_GAIN_NAMES: + val = prop_names_t(wbx_rx_gain_ranges.keys()); + return; + + case SUBDEV_PROP_FREQ: + val = 0.0; + return; + + case SUBDEV_PROP_FREQ_RANGE: + val = freq_range_t(0.0, 0.0, 0.0);; + return; + + case SUBDEV_PROP_ANTENNA: + val = std::string(""); + return; + + case SUBDEV_PROP_ANTENNA_NAMES: + val = prop_names_t(1, ""); + return; + + case SUBDEV_PROP_CONNECTION: + val = SUBDEV_CONN_COMPLEX_IQ; + return; + + case SUBDEV_PROP_ENABLED: + val = _rx_enabled; + return; + + case SUBDEV_PROP_USE_LO_OFFSET: + val = false; + return; + + case SUBDEV_PROP_SENSOR: + UHD_ASSERT_THROW(key.name == "lo_locked"); + val = sensor_value_t("LO", this->get_locked(dboard_iface::UNIT_RX), "locked", "unlocked"); + return; + + case SUBDEV_PROP_SENSOR_NAMES: + val = prop_names_t(1, "lo_locked"); + return; + + case SUBDEV_PROP_BANDWIDTH: + val = 2*20.0e6; //20MHz low-pass, we want complex double-sided + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } +} + +void wbx_base::rx_set(const wax::obj &key_, const wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + + case SUBDEV_PROP_GAIN: + this->set_rx_gain(val.as(), key.name); + return; + + case SUBDEV_PROP_ENABLED: + _rx_enabled = val.as(); + this->set_rx_enabled(_rx_enabled); + return; + + case SUBDEV_PROP_BANDWIDTH: + uhd::warning::post( + str(boost::format("WBX: No tunable bandwidth, fixed filtered to 40MHz")) + ); + return; + + default: UHD_THROW_PROP_SET_ERROR(); + } +} + +/*********************************************************************** + * TX Get and Set + **********************************************************************/ +void wbx_base::tx_get(const wax::obj &key_, wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + case SUBDEV_PROP_NAME: + val = get_tx_id().to_pp_string(); + return; + + case SUBDEV_PROP_OTHERS: + val = prop_names_t(); //empty + return; + + case SUBDEV_PROP_GAIN: + assert_has(_tx_gains.keys(), key.name, "wbx tx gain name"); + val = _tx_gains[key.name]; + return; + + case SUBDEV_PROP_GAIN_RANGE: + assert_has(wbx_tx_gain_ranges.keys(), key.name, "wbx tx gain name"); + val = wbx_tx_gain_ranges[key.name]; + return; + + case SUBDEV_PROP_GAIN_NAMES: + val = prop_names_t(wbx_tx_gain_ranges.keys()); + return; + + case SUBDEV_PROP_FREQ: + val = 0.0; + return; + + case SUBDEV_PROP_FREQ_RANGE: + val = freq_range_t(0.0, 0.0, 0.0); + return; + + case SUBDEV_PROP_ANTENNA: + val = std::string(""); + return; + + case SUBDEV_PROP_ANTENNA_NAMES: + val = prop_names_t(1, ""); + return; + + case SUBDEV_PROP_CONNECTION: + val = SUBDEV_CONN_COMPLEX_IQ; + return; + + case SUBDEV_PROP_ENABLED: + val = _tx_enabled; + return; + + case SUBDEV_PROP_USE_LO_OFFSET: + val = false; + return; + + case SUBDEV_PROP_SENSOR: + UHD_ASSERT_THROW(key.name == "lo_locked"); + val = sensor_value_t("LO", this->get_locked(dboard_iface::UNIT_TX), "locked", "unlocked"); + return; + + case SUBDEV_PROP_SENSOR_NAMES: + val = prop_names_t(1, "lo_locked"); + return; + + case SUBDEV_PROP_BANDWIDTH: + val = 2*20.0e6; //20MHz low-pass, we want complex double-sided + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } +} + +void wbx_base::tx_set(const wax::obj &key_, const wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + + case SUBDEV_PROP_GAIN: + this->set_tx_gain(val.as(), key.name); + return; + + case SUBDEV_PROP_ENABLED: + _tx_enabled = val.as(); + this->set_tx_enabled(_tx_enabled); + return; + + case SUBDEV_PROP_BANDWIDTH: + uhd::warning::post( + str(boost::format("WBX: No tunable bandwidth, fixed filtered to 40MHz")) + ); + return; + + default: UHD_THROW_PROP_SET_ERROR(); + } +} diff --git a/host/lib/usrp/dboard/db_wbx_common.hpp b/host/lib/usrp/dboard/db_wbx_common.hpp new file mode 100644 index 000000000..07e84a565 --- /dev/null +++ b/host/lib/usrp/dboard/db_wbx_common.hpp @@ -0,0 +1,72 @@ +// +// Copyright 2011 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// + +#ifndef INCLUDED_LIBUHD_USRP_DBOARD_DB_WBX_COMMON_HPP +#define INCLUDED_LIBUHD_USRP_DBOARD_DB_WBX_COMMON_HPP + +#include "adf4350_regs.hpp" +#include +#include +#include +#include + +namespace uhd{ namespace usrp{ + +/*********************************************************************** + * The WBX dboard base class + **********************************************************************/ +class wbx_base : public xcvr_dboard_base{ +public: + wbx_base(ctor_args_t args); + virtual ~wbx_base(void); + +protected: + virtual void set_rx_gain(double gain, const std::string &name); + virtual void set_tx_gain(double gain, const std::string &name); + + virtual void set_rx_enabled(bool enb); + virtual void set_tx_enabled(bool enb); + + void rx_get(const wax::obj &key, wax::obj &val); + void rx_set(const wax::obj &key, const wax::obj &val); + + void tx_get(const wax::obj &key, wax::obj &val); + void tx_set(const wax::obj &key, const wax::obj &val); + + /*! + * Set the LO frequency for the particular dboard unit. + * \param unit which unit rx or tx + * \param target_freq the desired frequency in Hz + * \return the actual frequency in Hz + */ + virtual double set_lo_freq(dboard_iface::unit_t unit, double target_freq); + + /*! + * Get the lock detect status of the LO. + * \param unit which unit rx or tx + * \return true for locked + */ + virtual bool get_locked(dboard_iface::unit_t unit); + +private: + uhd::dict _tx_gains, _rx_gains; + bool _rx_enabled, _tx_enabled; +}; + +}} //namespace uhd::usrp + +#endif /* INCLUDED_LIBUHD_USRP_DBOARD_DB_WBX_COMMON_HPP */ diff --git a/host/lib/usrp/dboard/db_wbx_simple.cpp b/host/lib/usrp/dboard/db_wbx_simple.cpp new file mode 100644 index 000000000..390b4474b --- /dev/null +++ b/host/lib/usrp/dboard/db_wbx_simple.cpp @@ -0,0 +1,251 @@ +// +// Copyright 2011 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . +// + +// Antenna constants +#define ANTSW_IO ((1 << 5)|(1 << 15)) // on UNIT_TX, 0 = TX, 1 = RX, on UNIT_RX 0 = main ant, 1 = RX2 +#define ANT_TX 0 //the tx line is transmitting +#define ANT_RX ANTSW_IO //the tx line is receiving +#define ANT_TXRX 0 //the rx line is on txrx +#define ANT_RX2 ANTSW_IO //the rx line in on rx2 +#define ANT_XX 0 //dont care how the antenna is set + +#include "db_wbx_common.hpp" +#include +#include +#include +#include +#include + +using namespace uhd; +using namespace uhd::usrp; +using namespace boost::assign; + +/*********************************************************************** + * The WBX Simple dboard constants + **********************************************************************/ +static const bool wbx_debug = false; + +static const freq_range_t wbx_freq_range(68.75e6, 2.2e9); + +static const prop_names_t wbx_tx_antennas = list_of("TX/RX"); + +static const prop_names_t wbx_rx_antennas = list_of("TX/RX")("RX2"); + +/*********************************************************************** + * The WBX simple implementation + **********************************************************************/ +class wbx_simple : public wbx_base{ +public: + wbx_simple(ctor_args_t args); + ~wbx_simple(void); + + void rx_get(const wax::obj &key, wax::obj &val); + void rx_set(const wax::obj &key, const wax::obj &val); + + void tx_get(const wax::obj &key, wax::obj &val); + void tx_set(const wax::obj &key, const wax::obj &val); + +private: + void set_rx_lo_freq(double freq); + void set_tx_lo_freq(double freq); + double _rx_lo_freq, _tx_lo_freq; + + void set_rx_ant(const std::string &ant); + void set_tx_ant(const std::string &ant); + std::string _rx_ant; +}; + +/*********************************************************************** + * Register the WBX simple implementation + **********************************************************************/ +static dboard_base::sptr make_wbx_simple(dboard_base::ctor_args_t args){ + return dboard_base::sptr(new wbx_simple(args)); +} + +UHD_STATIC_BLOCK(reg_wbx_simple_dboards){ + dboard_manager::register_dboard(0x0053, 0x0052, &make_wbx_simple, "WBX"); + dboard_manager::register_dboard(0x0053, 0x004f, &make_wbx_simple, "WBX + Simple GDB"); +} + +/*********************************************************************** + * Structors + **********************************************************************/ +wbx_simple::wbx_simple(ctor_args_t args) : wbx_base(args){ + + //set the gpio directions and atr controls (antenna switches all under ATR) + this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_TX, ANTSW_IO, ANTSW_IO); + this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_RX, ANTSW_IO, ANTSW_IO); + this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, ANTSW_IO, ANTSW_IO); + this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, ANTSW_IO, ANTSW_IO); + + //setup ATR for the antenna switches (constant) + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_IDLE, ANT_XX, ANTSW_IO); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_RX_ONLY, ANT_RX, ANTSW_IO); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_TX_ONLY, ANT_TX, ANTSW_IO); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_FULL_DUPLEX, ANT_TX, ANTSW_IO); + + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_IDLE, ANT_XX, ANTSW_IO); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_RX_ONLY, ANT_XX, ANTSW_IO); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, ANT_RX2, ANTSW_IO); + + //set some default values + set_rx_lo_freq((wbx_freq_range.start() + wbx_freq_range.stop())/2.0); + set_tx_lo_freq((wbx_freq_range.start() + wbx_freq_range.stop())/2.0); + set_rx_ant("RX2"); +} + +wbx_simple::~wbx_simple(void){ + /* NOP */ +} + +/*********************************************************************** + * Antennas + **********************************************************************/ +void wbx_simple::set_rx_ant(const std::string &ant){ + //validate input + assert_has(wbx_rx_antennas, ant, "wbx rx antenna name"); + + //shadow the setting + _rx_ant = ant; + + //write the new antenna setting to atr regs + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_RX_ONLY, ((_rx_ant == "TX/RX")? ANT_TXRX : ANT_RX2), ANTSW_IO); +} + +void wbx_simple::set_tx_ant(const std::string &ant){ + assert_has(wbx_tx_antennas, ant, "wbx tx antenna name"); + //only one antenna option, do nothing +} + +/*********************************************************************** + * Tuning + **********************************************************************/ +void wbx_simple::set_rx_lo_freq(double freq){ + _rx_lo_freq = set_lo_freq(dboard_iface::UNIT_RX, wbx_freq_range.clip(freq)); +} + +void wbx_simple::set_tx_lo_freq(double freq){ + _tx_lo_freq = set_lo_freq(dboard_iface::UNIT_TX, wbx_freq_range.clip(freq)); +} + +/*********************************************************************** + * RX Get and Set + **********************************************************************/ +void wbx_simple::rx_get(const wax::obj &key_, wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + case SUBDEV_PROP_NAME: + val = std::string("WBX RX + Simple GDB"); + return; + + case SUBDEV_PROP_FREQ: + val = _rx_lo_freq; + return; + + case SUBDEV_PROP_FREQ_RANGE: + val = wbx_freq_range; + return; + + case SUBDEV_PROP_ANTENNA: + val = _rx_ant; + return; + + case SUBDEV_PROP_ANTENNA_NAMES: + val = wbx_rx_antennas; + return; + + default: + //call into the base class for other properties + wbx_base::rx_get(key_, val); + } +} + +void wbx_simple::rx_set(const wax::obj &key_, const wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + + case SUBDEV_PROP_FREQ: + this->set_rx_lo_freq(val.as()); + return; + + case SUBDEV_PROP_ANTENNA: + this->set_rx_ant(val.as()); + return; + + default: + //call into the base class for other properties + wbx_base::rx_set(key_, val); + } +} + +/*********************************************************************** + * TX Get and Set + **********************************************************************/ +void wbx_simple::tx_get(const wax::obj &key_, wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + case SUBDEV_PROP_NAME: + val = std::string("WBX TX + Simple GDB"); + return; + + case SUBDEV_PROP_FREQ: + val = _tx_lo_freq; + return; + + case SUBDEV_PROP_FREQ_RANGE: + val = wbx_freq_range; + return; + + case SUBDEV_PROP_ANTENNA: + val = std::string("TX/RX"); + return; + + case SUBDEV_PROP_ANTENNA_NAMES: + val = wbx_tx_antennas; + return; + + default: + //call into the base class for other properties + wbx_base::tx_get(key_, val); + } +} + +void wbx_simple::tx_set(const wax::obj &key_, const wax::obj &val){ + named_prop_t key = named_prop_t::extract(key_); + + //handle the get request conditioned on the key + switch(key.as()){ + + case SUBDEV_PROP_FREQ: + this->set_tx_lo_freq(val.as()); + return; + + case SUBDEV_PROP_ANTENNA: + this->set_tx_ant(val.as()); + return; + + default: + //call into the base class for other properties + wbx_base::tx_set(key_, val); + } +} -- cgit v1.2.3 From 1a81e2a35ff1d288e87eb1e65911c1a97588217c Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Tue, 26 Apr 2011 16:37:07 -0700 Subject: Enhance WBX IQ balance performance through LO drive --- host/lib/usrp/dboard/db_wbx_common.cpp | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'host/lib/usrp/dboard') diff --git a/host/lib/usrp/dboard/db_wbx_common.cpp b/host/lib/usrp/dboard/db_wbx_common.cpp index 3ad2dac6a..eb239c305 100644 --- a/host/lib/usrp/dboard/db_wbx_common.cpp +++ b/host/lib/usrp/dboard/db_wbx_common.cpp @@ -329,6 +329,35 @@ double wbx_base::set_lo_freq( UHD_ASSERT_THROW(rfdivsel_to_enum.has_key(RFdiv)); regs.rf_divider_select = rfdivsel_to_enum[RFdiv]; + if (unit == dboard_iface::UNIT_RX) { + freq_range_t rx_lo_5dbm = list_of + (range_t(0.05e9, 1.4e9)) + ; + + freq_range_t rx_lo_2dbm = list_of + (range_t(1.4e9, 2.2e9)) + ; + + if (actual_freq == rx_lo_5dbm.clip(actual_freq)) regs.output_power = adf4350_regs_t::OUTPUT_POWER_5DBM; + + if (actual_freq == rx_lo_2dbm.clip(actual_freq)) regs.output_power = adf4350_regs_t::OUTPUT_POWER_2DBM; + + } else if (unit == dboard_iface::UNIT_TX) { + freq_range_t tx_lo_5dbm = list_of + (range_t(0.05e9, 1.7e9)) + (range_t(1.9e9, 2.2e9)) + ; + + freq_range_t tx_lo_m1dbm = list_of + (range_t(1.7e9, 1.9e9)) + ; + + if (actual_freq == tx_lo_5dbm.clip(actual_freq)) regs.output_power = adf4350_regs_t::OUTPUT_POWER_5DBM; + + if (actual_freq == tx_lo_m1dbm.clip(actual_freq)) regs.output_power = adf4350_regs_t::OUTPUT_POWER_M1DBM; + + } + //write the registers //correct power-up sequence to write registers (5, 4, 3, 2, 1, 0) int addr; -- cgit v1.2.3