diff options
Diffstat (limited to 'host/lib/usrp/dboard/db_sbx.cpp')
| -rw-r--r-- | host/lib/usrp/dboard/db_sbx.cpp | 785 |
1 files changed, 0 insertions, 785 deletions
diff --git a/host/lib/usrp/dboard/db_sbx.cpp b/host/lib/usrp/dboard/db_sbx.cpp deleted file mode 100644 index 40dbd286d..000000000 --- a/host/lib/usrp/dboard/db_sbx.cpp +++ /dev/null @@ -1,785 +0,0 @@ -// -// 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 <http://www.gnu.org/licenses/>. -// - -// Common IO Pins -#define LO_LPF_EN (1 << 15) -#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 TRSW (1 << 14) // 0 = TX, 1 = RX -#define TX_LED_TXRX (1 << 7) // LED for TX Antenna Selection TX/RX -#define TX_LED_LD (1 << 6) // LED for TX Lock Detect -#define DIS_POWER_TX (1 << 5) // on UNIT_TX, 0 powers up TX -#define TX_ENABLE (1 << 4) // on UNIT_TX, 0 disables TX Mixer - -// RX IO Pins -#define LNASW (1 << 14) // 0 = TX/RX, 1 = RX2 -#define RX_LED_RX1RX2 (1 << 7) // LED for RX Antenna Selection RX1/RX2 -#define RX_LED_LD (1 << 6) // LED for RX Lock Detect -#define DIS_POWER_RX (1 << 5) // on UNIT_RX, 0 powers up RX -#define RX_DISABLE (1 << 4) // on UNIT_RX, 1 disables RX Mixer and 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 - -// TX Attenuator Pins -#define TX_ATTN_SHIFT 8 // lsb of RX Attenuator Control -#define TX_ATTN_MASK (63 << TX_ATTN_SHIFT) // valid bits of RX Attenuator Control - -// Mixer functions -#define TX_MIXER_ENB (ADF4350_PDBRF) -#define TX_MIXER_DIS 0 - -#define RX_MIXER_ENB (ADF4350_PDBRF) -#define RX_MIXER_DIS 0 - -// Pin functions -#define TX_LED_IO (TX_LED_TXRX|TX_LED_LD) // LED gpio lines, pull down for LED -#define TXIO_MASK (LO_LPF_EN|TRSW|ADF4350_CE|ADF4350_PDBRF|TX_ATTN_MASK|DIS_POWER_TX|TX_ENABLE) - -#define RX_LED_IO (RX_LED_RX1RX2|RX_LED_LD) // LED gpio lines, pull down for LED -#define RXIO_MASK (LO_LPF_EN|LNASW|ADF4350_CE|ADF4350_PDBRF|RX_ATTN_MASK|DIS_POWER_RX|RX_DISABLE) - -// Power functions -#define TX_POWER_UP (ADF4350_CE|TX_ENABLE) -#define TX_POWER_DOWN (DIS_POWER_TX) - -#define RX_POWER_UP (ADF4350_CE) -#define RX_POWER_DOWN (DIS_POWER_RX) - -// Antenna constants -#define ANT_TX TRSW //the tx line is transmitting -#define ANT_RX 0 //the tx line is receiving -#define ANT_TXRX 0 //the rx line is on txrx -#define ANT_RX2 LNASW //the rx line in on rx2 -#define ANT_XX LNASW //dont care how the antenna is set - -#include "adf4350_regs.hpp" -#include <uhd/types/dict.hpp> -#include <uhd/types/ranges.hpp> -#include <uhd/types/sensors.hpp> -#include <uhd/utils/assert_has.hpp> -#include <uhd/utils/log.hpp> -#include <uhd/utils/static.hpp> -#include <uhd/utils/algorithm.hpp> -#include <uhd/utils/msg.hpp> -#include <uhd/usrp/dboard_base.hpp> -#include <uhd/usrp/dboard_manager.hpp> -#include <boost/assign/list_of.hpp> -#include <boost/format.hpp> -#include <boost/math/special_functions/round.hpp> -#include <boost/thread.hpp> - -using namespace uhd; -using namespace uhd::usrp; -using namespace boost::assign; - -/*********************************************************************** - * The SBX dboard constants - **********************************************************************/ -static const freq_range_t sbx_freq_range(400e6, 4.4e9); - -static const freq_range_t sbx_tx_lo_2dbm = list_of - (range_t(0.35e9, 0.37e9)) -; - -static const freq_range_t sbx_enable_tx_lo_filter = list_of - (range_t(0.4e9, 1.5e9)) -; - -static const freq_range_t sbx_enable_rx_lo_filter = list_of - (range_t(0.4e9, 1.5e9)) -; - -static const prop_names_t sbx_tx_antennas = list_of("TX/RX"); - -static const prop_names_t sbx_rx_antennas = list_of("TX/RX")("RX2"); - -static const uhd::dict<std::string, gain_range_t> sbx_tx_gain_ranges = map_list_of - ("PGA0", gain_range_t(0, 31.5, double(0.5))) -; - -static const uhd::dict<std::string, gain_range_t> sbx_rx_gain_ranges = map_list_of - ("PGA0", gain_range_t(0, 31.5, double(0.5))) -; - -/*********************************************************************** - * The SBX dboard - **********************************************************************/ -class sbx_xcvr : public xcvr_dboard_base{ -public: - sbx_xcvr(ctor_args_t args); - ~sbx_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<std::string, double> _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; - } - - /*! - * Flash the LEDs - */ - void flash_leds(void) { - //Remove LED gpios from ATR control temporarily and set to outputs - 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|RX_LED_IO)); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, (RXIO_MASK|RX_LED_IO)); - - /* - //flash All LEDs - for (int i = 0; i < 3; i++) { - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, RX_LED_IO, RX_LED_IO); - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, TX_LED_IO, TX_LED_IO); - - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, 0, RX_LED_IO); - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, 0, TX_LED_IO); - - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - } - */ - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, TX_LED_LD, TX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, TX_LED_TXRX|TX_LED_LD, TX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, RX_LED_LD, RX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, RX_LED_RX1RX2|RX_LED_LD, RX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, RX_LED_LD, RX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, 0, RX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, TX_LED_LD, TX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, 0, TX_LED_IO); - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - /* - //flash All LEDs - for (int i = 0; i < 3; i++) { - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, 0, RX_LED_IO); - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, 0, TX_LED_IO); - - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - - this->get_iface()->set_gpio_out(dboard_iface::UNIT_RX, RX_LED_IO, RX_LED_IO); - this->get_iface()->set_gpio_out(dboard_iface::UNIT_TX, TX_LED_IO, TX_LED_IO); - - boost::this_thread::sleep(boost::posix_time::milliseconds(100)); - } - */ - //Put LED gpios back in ATR control and update atr - this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_TX, (TXIO_MASK|TX_LED_IO)); - this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_RX, (RXIO_MASK|RX_LED_IO)); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, (TXIO_MASK|TX_LED_IO)); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, (RXIO_MASK|RX_LED_IO)); - } - -}; - -/*********************************************************************** - * Register the SBX dboard (min freq, max freq, rx div2, tx div2) - **********************************************************************/ -static dboard_base::sptr make_sbx(dboard_base::ctor_args_t args){ - return dboard_base::sptr(new sbx_xcvr(args)); -} - -UHD_STATIC_BLOCK(reg_sbx_dboards){ - dboard_manager::register_dboard(0x0054, 0x0055, &make_sbx, "SBX"); -} - -/*********************************************************************** - * Structors - **********************************************************************/ -sbx_xcvr::sbx_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|TX_LED_IO)); - this->get_iface()->set_pin_ctrl(dboard_iface::UNIT_RX, (RXIO_MASK|RX_LED_IO)); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_TX, (TXIO_MASK|TX_LED_IO)); - this->get_iface()->set_gpio_ddr(dboard_iface::UNIT_RX, (RXIO_MASK|RX_LED_IO)); - - //flash LEDs - flash_leds(); - - UHD_LOGV(often) << boost::format( - "SBX GPIO Direction: RX: 0x%08x, TX: 0x%08x" - ) % RXIO_MASK % TXIO_MASK << std::endl; - - //set some default values - set_rx_lo_freq((sbx_freq_range.start() + sbx_freq_range.stop())/2.0); - set_tx_lo_freq((sbx_freq_range.start() + sbx_freq_range.stop())/2.0); - set_rx_ant("RX2"); - - BOOST_FOREACH(const std::string &name, sbx_tx_gain_ranges.keys()){ - set_tx_gain(sbx_tx_gain_ranges[name].start(), name); - } - BOOST_FOREACH(const std::string &name, sbx_rx_gain_ranges.keys()){ - set_rx_gain(sbx_rx_gain_ranges[name].start(), name); - } -} - -sbx_xcvr::~sbx_xcvr(void){ - /* NOP */ -} - -/*********************************************************************** - * Gain Handling - **********************************************************************/ -static int rx_pga0_gain_to_iobits(double &gain){ - //clip the input - gain = sbx_rx_gain_ranges["PGA0"].clip(gain); - - //convert to attenuation and update iobits for atr - double attn = sbx_rx_gain_ranges["PGA0"].stop() - gain; - - //calculate the RX attenuation - int attn_code = int(floor(attn*2)); - int iobits = ((~attn_code) << RX_ATTN_SHIFT) & RX_ATTN_MASK; - - - UHD_LOGV(often) << boost::format( - "SBX TX 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 = sbx_rx_gain_ranges["PGA0"].stop() - double(attn_code)/2; - - return iobits; -} - -static int tx_pga0_gain_to_iobits(double &gain){ - //clip the input - gain = sbx_tx_gain_ranges["PGA0"].clip(gain); - - //convert to attenuation and update iobits for atr - double attn = sbx_tx_gain_ranges["PGA0"].stop() - gain; - - //calculate the TX attenuation - int attn_code = int(floor(attn*2)); - int iobits = ((~attn_code) << TX_ATTN_SHIFT) & TX_ATTN_MASK; - - - UHD_LOGV(often) << boost::format( - "SBX TX Attenuation: %f dB, Code: %d, IO Bits %x, Mask: %x" - ) % attn % attn_code % (iobits & TX_ATTN_MASK) % TX_ATTN_MASK << std::endl; - - //the actual gain setting - gain = sbx_tx_gain_ranges["PGA0"].stop() - double(attn_code)/2; - - return iobits; -} - -void sbx_xcvr::set_tx_gain(double gain, const std::string &name){ - assert_has(sbx_tx_gain_ranges.keys(), name, "sbx tx gain name"); - if(name == "PGA0"){ - tx_pga0_gain_to_iobits(gain); - _tx_gains[name] = gain; - - //write the new gain to atr regs - update_atr(); - } - else UHD_THROW_INVALID_CODE_PATH(); -} - -void sbx_xcvr::set_rx_gain(double gain, const std::string &name){ - assert_has(sbx_rx_gain_ranges.keys(), name, "sbx 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 sbx_xcvr::update_atr(void){ - //calculate atr pins - int rx_pga0_iobits = rx_pga0_gain_to_iobits(_rx_gains["PGA0"]); - int tx_pga0_iobits = tx_pga0_gain_to_iobits(_tx_gains["PGA0"]); - int rx_lo_lpf_en = (_rx_lo_freq == sbx_enable_rx_lo_filter.clip(_rx_lo_freq)) ? LO_LPF_EN : 0; - int tx_lo_lpf_en = (_tx_lo_freq == sbx_enable_tx_lo_filter.clip(_tx_lo_freq)) ? LO_LPF_EN : 0; - int rx_ld_led = get_locked(dboard_iface::UNIT_RX) ? 0 : RX_LED_LD; - int tx_ld_led = get_locked(dboard_iface::UNIT_TX) ? 0 : TX_LED_LD; - int rx_ant_led = _rx_ant == "TX/RX" ? RX_LED_RX1RX2 : 0; - int tx_ant_led = _rx_ant == "TX/RX" ? 0 : TX_LED_TXRX; - - //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_pga0_iobits | tx_lo_lpf_en | tx_ld_led | tx_ant_led | TX_POWER_UP | ANT_XX | TX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_TX_ONLY, - tx_pga0_iobits | tx_lo_lpf_en | tx_ld_led | tx_ant_led | 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_pga0_iobits | tx_lo_lpf_en | tx_ld_led | tx_ant_led | 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, - rx_pga0_iobits | rx_lo_lpf_en | rx_ld_led | rx_ant_led | RX_POWER_UP | ANT_XX | RX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_TX_ONLY, - rx_pga0_iobits | rx_lo_lpf_en | rx_ld_led | rx_ant_led | RX_POWER_UP | ANT_RX2 | RX_MIXER_DIS); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, - rx_pga0_iobits | rx_lo_lpf_en | rx_ld_led | rx_ant_led | RX_POWER_UP | ANT_RX2 | RX_MIXER_ENB); - - //set the atr regs that change with antenna setting - this->get_iface()->set_atr_reg(dboard_iface::UNIT_TX, dboard_iface::ATR_REG_RX_ONLY, - tx_pga0_iobits | tx_lo_lpf_en | tx_ld_led | tx_ant_led | TX_POWER_UP | TX_MIXER_DIS | - ((_rx_ant == "TX/RX")? ANT_RX : ANT_TX)); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_RX_ONLY, - rx_pga0_iobits | rx_lo_lpf_en | rx_ld_led | rx_ant_led | RX_POWER_UP | RX_MIXER_ENB | - ((_rx_ant == "TX/RX")? ANT_TXRX : ANT_RX2)); - - UHD_LOGV(often) << boost::format( - "SBX RXONLY ATR REG: 0x%08x" - ) % (rx_pga0_iobits | RX_POWER_UP | RX_MIXER_ENB | ((_rx_ant == "TX/RX")? ANT_TXRX : ANT_RX2)) << std::endl; -} - -void sbx_xcvr::set_rx_ant(const std::string &ant){ - //validate input - assert_has(sbx_rx_antennas, ant, "sbx rx antenna name"); - - //shadow the setting - _rx_ant = ant; - - //write the new antenna setting to atr regs - update_atr(); -} - -void sbx_xcvr::set_tx_ant(const std::string &ant){ - assert_has(sbx_tx_antennas, ant, "sbx tx antenna name"); - //only one antenna option, do nothing -} - -/*********************************************************************** - * Tuning - **********************************************************************/ -void sbx_xcvr::set_rx_lo_freq(double freq){ - _rx_lo_freq = set_lo_freq(dboard_iface::UNIT_RX, freq); -} - -void sbx_xcvr::set_tx_lo_freq(double freq){ - _tx_lo_freq = set_lo_freq(dboard_iface::UNIT_TX, freq); -} - -double sbx_xcvr::set_lo_freq( - dboard_iface::unit_t unit, - double target_freq -){ - UHD_LOGV(often) << boost::format( - "SBX tune: target frequency %f Mhz" - ) % (target_freq/1e6) << std::endl; - - //clip the input - target_freq = sbx_freq_range.clip(target_freq); - - //map prescaler setting to mininmum integer divider (N) values (pg.18 prescaler) - static const uhd::dict<int, int> 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<int, adf4350_regs_t::rf_divider_select_t> 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; - 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); - - UHD_LOGV(often) - << boost::format("SBX 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 - << boost::format("SBX 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("SBX 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; - - if ((unit == dboard_iface::UNIT_TX) and (actual_freq == sbx_tx_lo_2dbm.clip(actual_freq))) - regs.output_power = adf4350_regs_t::OUTPUT_POWER_2DBM; - else - regs.output_power = adf4350_regs_t::OUTPUT_POWER_5DBM; - - 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--){ - UHD_LOGV(often) << boost::format( - "SBX 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 - UHD_LOGV(often) << boost::format( - "SBX tune: actual frequency %f Mhz" - ) % (actual_freq/1e6) << std::endl; - return actual_freq; -} - -/*********************************************************************** - * RX Get and Set - **********************************************************************/ -void sbx_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<subdev_prop_t>()){ - 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, "sbx rx gain name"); - val = _rx_gains[key.name]; - return; - - case SUBDEV_PROP_GAIN_RANGE: - assert_has(sbx_rx_gain_ranges.keys(), key.name, "sbx rx gain name"); - val = sbx_rx_gain_ranges[key.name]; - return; - - case SUBDEV_PROP_GAIN_NAMES: - val = prop_names_t(sbx_rx_gain_ranges.keys()); - return; - - case SUBDEV_PROP_FREQ: - val = _rx_lo_freq; - return; - - case SUBDEV_PROP_FREQ_RANGE: - val = sbx_freq_range; - return; - - case SUBDEV_PROP_ANTENNA: - val = _rx_ant; - return; - - case SUBDEV_PROP_ANTENNA_NAMES: - val = sbx_rx_antennas; - return; - - case SUBDEV_PROP_CONNECTION: - val = SUBDEV_CONN_COMPLEX_IQ; - return; - - case SUBDEV_PROP_USE_LO_OFFSET: - val = false; - return; - - case SUBDEV_PROP_ENABLED: - val = true; //always enabled - 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 sbx_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<subdev_prop_t>()){ - - case SUBDEV_PROP_FREQ: - this->set_rx_lo_freq(val.as<double>()); - return; - - case SUBDEV_PROP_GAIN: - this->set_rx_gain(val.as<double>(), key.name); - return; - - case SUBDEV_PROP_ANTENNA: - this->set_rx_ant(val.as<std::string>()); - return; - - case SUBDEV_PROP_ENABLED: - return; //always enabled - - case SUBDEV_PROP_BANDWIDTH: - UHD_MSG(warning) << "SBX: No tunable bandwidth, fixed filtered to 40MHz"; - return; - - default: UHD_THROW_PROP_SET_ERROR(); - } -} - -/*********************************************************************** - * TX Get and Set - **********************************************************************/ -void sbx_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<subdev_prop_t>()){ - 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, "sbx tx gain name"); - val = _tx_gains[key.name]; - return; - - case SUBDEV_PROP_GAIN_RANGE: - assert_has(sbx_tx_gain_ranges.keys(), key.name, "sbx tx gain name"); - val = sbx_tx_gain_ranges[key.name]; - return; - - case SUBDEV_PROP_GAIN_NAMES: - val = prop_names_t(sbx_tx_gain_ranges.keys()); - return; - - case SUBDEV_PROP_FREQ: - val = _tx_lo_freq; - return; - - case SUBDEV_PROP_FREQ_RANGE: - val = sbx_freq_range; - return; - - case SUBDEV_PROP_ANTENNA: - val = std::string("TX/RX"); - return; - - case SUBDEV_PROP_ANTENNA_NAMES: - val = sbx_tx_antennas; - return; - - case SUBDEV_PROP_CONNECTION: - val = SUBDEV_CONN_COMPLEX_QI; - return; - - case SUBDEV_PROP_USE_LO_OFFSET: - val = false; - return; - - case SUBDEV_PROP_ENABLED: - val = true; //always enabled - 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 sbx_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<subdev_prop_t>()){ - - case SUBDEV_PROP_FREQ: - this->set_tx_lo_freq(val.as<double>()); - return; - - case SUBDEV_PROP_GAIN: - this->set_tx_gain(val.as<double>(), key.name); - return; - - case SUBDEV_PROP_ANTENNA: - this->set_tx_ant(val.as<std::string>()); - return; - - case SUBDEV_PROP_ENABLED: - return; //always enabled - - case SUBDEV_PROP_BANDWIDTH: - UHD_MSG(warning) << "SBX: No tunable bandwidth, fixed filtered to 40MHz"; - return; - - default: UHD_THROW_PROP_SET_ERROR(); - } -} |