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Diffstat (limited to 'host/lib/usrp/common/ad9361_driver/ad9361_device.cpp')
-rw-r--r--host/lib/usrp/common/ad9361_driver/ad9361_device.cpp629
1 files changed, 582 insertions, 47 deletions
diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp
index 92ad0ee3f..c3eb5fb9d 100644
--- a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp
+++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp
@@ -88,7 +88,7 @@ const double ad9361_device_t::AD9361_CAL_VALID_WINDOW = 100e6;
* how many taps are in the filter, and given a vector of the taps
* themselves. */
-void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, boost::uint16_t *coeffs)
+void ad9361_device_t::_program_fir_filter(direction_t direction, chain_t chain, int num_taps, boost::uint16_t *coeffs)
{
boost::uint16_t base;
@@ -103,8 +103,20 @@ void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, b
/* Encode number of filter taps for programming register */
boost::uint8_t reg_numtaps = (((num_taps / 16) - 1) & 0x07) << 5;
+ boost::uint8_t reg_chain = 0;
+ switch (chain) {
+ case CHAIN_1:
+ reg_chain = 0x01 << 3;
+ break;
+ case CHAIN_2:
+ reg_chain = 0x02 << 3;
+ break;
+ default:
+ reg_chain = 0x03 << 3;
+ }
+
/* Turn on the filter clock. */
- _io_iface->poke8(base + 5, reg_numtaps | 0x1a);
+ _io_iface->poke8(base + 5, reg_numtaps | reg_chain | 0x02);
boost::this_thread::sleep(boost::posix_time::milliseconds(1));
/* Zero the unused taps just in case they have stale data */
@@ -113,7 +125,7 @@ void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, b
_io_iface->poke8(base + 0, addr);
_io_iface->poke8(base + 1, 0x0);
_io_iface->poke8(base + 2, 0x0);
- _io_iface->poke8(base + 5, reg_numtaps | 0x1e);
+ _io_iface->poke8(base + 5, reg_numtaps | reg_chain | (1 << 1) | (1 << 2));
_io_iface->poke8(base + 4, 0x00);
_io_iface->poke8(base + 4, 0x00);
}
@@ -123,7 +135,7 @@ void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, b
_io_iface->poke8(base + 0, addr);
_io_iface->poke8(base + 1, (coeffs[addr]) & 0xff);
_io_iface->poke8(base + 2, (coeffs[addr] >> 8) & 0xff);
- _io_iface->poke8(base + 5, reg_numtaps | 0x1e);
+ _io_iface->poke8(base + 5, reg_numtaps | reg_chain | (1 << 1) | (1 << 2));
_io_iface->poke8(base + 4, 0x00);
_io_iface->poke8(base + 4, 0x00);
}
@@ -134,9 +146,9 @@ void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, b
before the clock stops. Wait 4 sample clock periods after setting D2 high while that data writes into the table"
*/
- _io_iface->poke8(base + 5, reg_numtaps | 0x1A);
+ _io_iface->poke8(base + 5, reg_numtaps | reg_chain | (1 << 1));
if (direction == RX) {
- _io_iface->poke8(base + 5, reg_numtaps | 0x18);
+ _io_iface->poke8(base + 5, reg_numtaps | reg_chain );
/* Rx Gain, set to prevent digital overflow/saturation in filters
0:+6dB, 1:0dB, 2:-6dB, 3:-12dB
page 35 of UG-671 */
@@ -145,7 +157,7 @@ void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, b
/* Tx Gain. bit[0]. set to prevent digital overflow/saturation in filters
0: 0dB, 1:-6dB
page 25 of UG-671 */
- _io_iface->poke8(base + 5, reg_numtaps | 0x18);
+ _io_iface->poke8(base + 5, reg_numtaps | reg_chain );
}
}
@@ -176,7 +188,7 @@ void ad9361_device_t::_setup_rx_fir(size_t num_taps, boost::int32_t decimation)
}
}
- _program_fir_filter(RX, num_taps, coeffs.get());
+ _program_fir_filter(RX, CHAIN_BOTH, num_taps, coeffs.get());
}
/* Program the TX FIR Filter. */
@@ -208,7 +220,7 @@ void ad9361_device_t::_setup_tx_fir(size_t num_taps, boost::int32_t interpolatio
}
}
- _program_fir_filter(TX, num_taps, coeffs.get());
+ _program_fir_filter(TX, CHAIN_BOTH, num_taps, coeffs.get());
}
/***********************************************************************
@@ -283,16 +295,24 @@ void ad9361_device_t::_calibrate_synth_charge_pumps()
*
* Note that the filter calibration depends heavily on the baseband
* bandwidth, so this must be re-done after any change to the RX sample
- * rate. */
-double ad9361_device_t::_calibrate_baseband_rx_analog_filter()
+ * rate.
+ * UG570 Page 33 states that this filter should be calibrated to 1.4 * bbbw*/
+double ad9361_device_t::_calibrate_baseband_rx_analog_filter(double req_rfbw)
{
- /* For filter tuning, baseband BW is half the complex BW, and must be
- * between 28e6 and 0.2e6. */
- double bbbw = _baseband_bw / 2.0;
+ double bbbw = req_rfbw / 2.0;
+ if(bbbw > _baseband_bw / 2.0)
+ {
+ UHD_LOG << "baseband bandwidth too large for current sample rate. Setting bandwidth to: "<<_baseband_bw;
+ bbbw = _baseband_bw / 2.0;
+ }
+
+ /* Baseband BW must be between 28e6 and 0.143e6.
+ * Max filter BW is 39.2 MHz. 39.2 / 1.4 = 28
+ * Min filter BW is 200kHz. 200 / 1.4 = 143 */
if (bbbw > 28e6) {
bbbw = 28e6;
- } else if (bbbw < 0.20e6) {
- bbbw = 0.20e6;
+ } else if (bbbw < 0.143e6) {
+ bbbw = 0.143e6;
}
double rxtune_clk = ((1.4 * bbbw * 2 * M_PI) / M_LN2);
@@ -341,16 +361,25 @@ double ad9361_device_t::_calibrate_baseband_rx_analog_filter()
*
* Note that the filter calibration depends heavily on the baseband
* bandwidth, so this must be re-done after any change to the TX sample
- * rate. */
-double ad9361_device_t::_calibrate_baseband_tx_analog_filter()
+ * rate.
+ * UG570 Page 32 states that this filter should be calibrated to 1.6 * bbbw*/
+double ad9361_device_t::_calibrate_baseband_tx_analog_filter(double req_rfbw)
{
- /* For filter tuning, baseband BW is half the complex BW, and must be
- * between 28e6 and 0.2e6. */
- double bbbw = _baseband_bw / 2.0;
+ double bbbw = req_rfbw / 2.0;
+
+ if(bbbw > _baseband_bw / 2.0)
+ {
+ UHD_LOG << "baseband bandwidth too large for current sample rate. Setting bandwidth to: "<<_baseband_bw;
+ bbbw = _baseband_bw / 2.0;
+ }
+
+ /* Baseband BW must be between 20e6 and 0.391e6.
+ * Max filter BW is 32 MHz. 32 / 1.6 = 20
+ * Min filter BW is 625 kHz. 625 / 1.6 = 391 */
if (bbbw > 20e6) {
bbbw = 20e6;
- } else if (bbbw < 0.625e6) {
- bbbw = 0.625e6;
+ } else if (bbbw < 0.391e6) {
+ bbbw = 0.391e6;
}
double txtune_clk = ((1.6 * bbbw * 2 * M_PI) / M_LN2);
@@ -387,16 +416,25 @@ double ad9361_device_t::_calibrate_baseband_tx_analog_filter()
/* Calibrate the secondary TX filter.
*
* This filter also depends on the TX sample rate, so if a rate change is
- * made, the previous calibration will no longer be valid. */
-void ad9361_device_t::_calibrate_secondary_tx_filter()
+ * made, the previous calibration will no longer be valid.
+ * UG570 Page 32 states that this filter should be calibrated to 5 * bbbw*/
+double ad9361_device_t::_calibrate_secondary_tx_filter(double req_rfbw)
{
- /* For filter tuning, baseband BW is half the complex BW, and must be
- * between 20e6 and 0.53e6. */
- double bbbw = _baseband_bw / 2.0;
+ double bbbw = req_rfbw / 2.0;
+
+ if(bbbw > _baseband_bw / 2.0)
+ {
+ UHD_LOG << "baseband bandwidth too large for current sample rate. Setting bandwidth to: "<<_baseband_bw;
+ bbbw = _baseband_bw / 2.0;
+ }
+
+ /* Baseband BW must be between 20e6 and 0.54e6.
+ * Max filter BW is 100 MHz. 100 / 5 = 20
+ * Min filter BW is 2.7 MHz. 2.7 / 5 = 0.54 */
if (bbbw > 20e6) {
bbbw = 20e6;
- } else if (bbbw < 0.53e6) {
- bbbw = 0.53e6;
+ } else if (bbbw < 0.54e6) {
+ bbbw = 0.54e6;
}
double bbbw_mhz = bbbw / 1e6;
@@ -457,13 +495,17 @@ void ad9361_device_t::_calibrate_secondary_tx_filter()
_io_iface->poke8(0x0d2, reg0d2);
_io_iface->poke8(0x0d1, reg0d1);
_io_iface->poke8(0x0d0, reg0d0);
+
+ return bbbw;
}
/* Calibrate the RX TIAs.
*
* Note that the values in the TIA register, after calibration, vary with
- * the RX gain settings. */
-void ad9361_device_t::_calibrate_rx_TIAs()
+ * the RX gain settings.
+ * We do not really program the BW here. Most settings are taken form the BB LPF registers
+ * UG570 page 33 states that this filter should be calibrated to 2.5 * bbbw */
+double ad9361_device_t::_calibrate_rx_TIAs(double req_rfbw)
{
boost::uint8_t reg1eb = _io_iface->peek8(0x1eb) & 0x3F;
boost::uint8_t reg1ec = _io_iface->peek8(0x1ec) & 0x7F;
@@ -474,13 +516,21 @@ void ad9361_device_t::_calibrate_rx_TIAs()
boost::uint8_t reg1de = 0x00;
boost::uint8_t reg1df = 0x00;
- /* For calibration, baseband BW is half the complex BW, and must be
- * between 28e6 and 0.2e6. */
- double bbbw = _baseband_bw / 2.0;
- if (bbbw > 20e6) {
- bbbw = 20e6;
- } else if (bbbw < 0.20e6) {
- bbbw = 0.20e6;
+ double bbbw = req_rfbw / 2.0;
+
+ if(bbbw > _baseband_bw / 2.0)
+ {
+ UHD_LOG << "baseband bandwidth too large for current sample rate. Setting bandwidth to: "<<_baseband_bw;
+ bbbw = _baseband_bw / 2.0;
+ }
+
+ /* Baseband BW must be between 28e6 and 0.4e6.
+ * Max filter BW is 70 MHz. 70 / 2.5 = 28
+ * Min filter BW is 1 MHz. 1 / 2.5 = 0.4*/
+ if (bbbw > 28e6) {
+ bbbw = 28e6;
+ } else if (bbbw < 0.40e6) {
+ bbbw = 0.40e6;
}
double ceil_bbbw_mhz = std::ceil(bbbw / 1e6);
@@ -521,6 +571,8 @@ void ad9361_device_t::_calibrate_rx_TIAs()
_io_iface->poke8(0x1df, reg1df);
_io_iface->poke8(0x1dc, reg1dc);
_io_iface->poke8(0x1de, reg1de);
+
+ return bbbw;
}
/* Setup the AD9361 ADC.
@@ -1457,6 +1509,12 @@ void ad9361_device_t::initialize()
_rx1_agc_enable = false;
_rx2_agc_enable = false;
_last_calibration_freq = -AD9361_CAL_VALID_WINDOW;
+ _rx_analog_bw = 0;
+ _tx_analog_bw = 0;
+ _rx_tia_lp_bw = 0;
+ _tx_sec_lp_bw = 0;
+ _rx_bb_lp_bw = 0;
+ _tx_bb_lp_bw = 0;
/* Reset the device. */
_io_iface->poke8(0x000, 0x01);
@@ -1602,10 +1660,8 @@ void ad9361_device_t::initialize()
_program_gain_table();
_setup_gain_control(false);
- _calibrate_baseband_rx_analog_filter();
- _calibrate_baseband_tx_analog_filter();
- _calibrate_rx_TIAs();
- _calibrate_secondary_tx_filter();
+ set_bw_filter(RX, _baseband_bw);
+ set_bw_filter(TX, _baseband_bw);
_setup_adc();
@@ -1729,10 +1785,8 @@ double ad9361_device_t::set_clock_rate(const double req_rate)
_setup_gain_control(false);
_reprogram_gains();
- _calibrate_baseband_rx_analog_filter();
- _calibrate_baseband_tx_analog_filter();
- _calibrate_rx_TIAs();
- _calibrate_secondary_tx_filter();
+ set_bw_filter(RX, _baseband_bw);
+ set_bw_filter(TX, _baseband_bw);
_setup_adc();
@@ -2198,4 +2252,485 @@ void ad9361_device_t::set_agc_mode(chain_t chain, gain_mode_t gain_mode)
}
}
+std::vector<std::string> ad9361_device_t::get_filter_names(direction_t direction)
+{
+ std::vector<std::string> ret;
+ if(direction == RX) {
+ for(std::map<std::string, filter_query_helper>::iterator it = _rx_filters.begin(); it != _rx_filters.end(); ++it) {
+ ret.push_back(it->first);
+ }
+ } else if (direction == TX)
+ {
+ for(std::map<std::string, filter_query_helper>::iterator it = _tx_filters.begin(); it != _tx_filters.end(); ++it) {
+ ret.push_back(it->first);
+ }
+ }
+ return ret;
+}
+
+filter_info_base::sptr ad9361_device_t::get_filter(direction_t direction, chain_t chain, const std::string &name)
+{
+ if(direction == RX) {
+ if (not _rx_filters[name].get)
+ {
+ throw uhd::runtime_error("ad9361_device_t::get_filter this filter can not be read.");
+ }
+ return _rx_filters[name].get(direction, chain);
+ } else if (direction == TX) {
+ if (not _tx_filters[name].get)
+ {
+ throw uhd::runtime_error("ad9361_device_t::get_filter this filter can not be read.");
+ }
+ return _tx_filters[name].get(direction, chain);
+ }
+
+ throw uhd::runtime_error("ad9361_device_t::get_filter wrong direction parameter.");
+}
+
+void ad9361_device_t::set_filter(direction_t direction, chain_t chain, const std::string &name, filter_info_base::sptr filter)
+{
+
+ if(direction == RX) {
+ if(not _rx_filters[name].set)
+ {
+ throw uhd::runtime_error("ad9361_device_t::set_filter this filter can not be written.");
+ }
+ _rx_filters[name].set(direction, chain, filter);
+ } else if (direction == TX) {
+ if(not _tx_filters[name].set)
+ {
+ throw uhd::runtime_error("ad9361_device_t::set_filter this filter can not be written.");
+ }
+ _tx_filters[name].set(direction, chain, filter);
+ }
+
+}
+
+double ad9361_device_t::set_bw_filter(direction_t direction, const double rf_bw)
+{
+ //both low pass filters are programmed to the same bw. However, their cutoffs will differ.
+ //Together they should create the requested bb bw.
+ double set_analog_bb_bw = 0;
+ if(direction == RX)
+ {
+ _rx_bb_lp_bw = _calibrate_baseband_rx_analog_filter(rf_bw); //returns bb bw
+ _rx_tia_lp_bw = _calibrate_rx_TIAs(rf_bw);
+ _rx_analog_bw = _rx_bb_lp_bw;
+ set_analog_bb_bw = _rx_analog_bw;
+ } else {
+ _tx_bb_lp_bw = _calibrate_baseband_tx_analog_filter(rf_bw); //returns bb bw
+ _tx_sec_lp_bw = _calibrate_secondary_tx_filter(rf_bw);
+ _tx_analog_bw = _tx_bb_lp_bw;
+ set_analog_bb_bw = _tx_analog_bw;
+ }
+ return (2.0 * set_analog_bb_bw);
+}
+
+void ad9361_device_t::_set_fir_taps(direction_t direction, chain_t chain, const std::vector<boost::int16_t>& taps)
+{
+ size_t num_taps = taps.size();
+ size_t num_taps_avail = _get_num_fir_taps(direction);
+ if(num_taps == num_taps_avail)
+ {
+ boost::scoped_array<boost::uint16_t> coeffs(new boost::uint16_t[num_taps_avail]);
+ for (size_t i = 0; i < num_taps_avail; i++)
+ {
+ coeffs[i] = boost::uint16_t(taps[i]);
+ }
+ _program_fir_filter(direction, chain, num_taps_avail, coeffs.get());
+ } else if(num_taps < num_taps_avail){
+ throw uhd::runtime_error("ad9361_device_t::_set_fir_taps not enough coefficients.");
+ } else {
+ throw uhd::runtime_error("ad9361_device_t::_set_fir_taps too many coefficients.");
+ }
+}
+
+size_t ad9361_device_t::_get_num_fir_taps(direction_t direction)
+{
+ boost::uint8_t num = 0;
+ if(direction == RX)
+ num = _io_iface->peek8(0x0F5);
+ else
+ num = _io_iface->peek8(0x065);
+ num = ((num >> 5) & 0x07);
+ return ((num + 1) * 16);
+}
+
+size_t ad9361_device_t::_get_fir_dec_int(direction_t direction)
+{
+ boost::uint8_t dec_int = 0;
+ if(direction == RX)
+ dec_int = _io_iface->peek8(0x003);
+ else
+ dec_int = _io_iface->peek8(0x002);
+ /*
+ * 0 = dec/int by 1 and bypass filter
+ * 1 = dec/int by 1
+ * 2 = dec/int by 2
+ * 3 = dec/int by 4 */
+ dec_int = (dec_int & 0x03);
+ if(dec_int == 3)
+ {
+ return 4;
+ }
+ return dec_int;
+}
+
+std::vector<boost::int16_t> ad9361_device_t::_get_fir_taps(direction_t direction, chain_t chain)
+{
+ int base;
+ size_t num_taps = _get_num_fir_taps(direction);
+ boost::uint8_t config;
+ boost::uint8_t reg_numtaps = (((num_taps / 16) - 1) & 0x07) << 5;
+ config = reg_numtaps | 0x02; //start the programming clock
+
+ if(chain == CHAIN_1)
+ {
+ config = config | (1 << 3);
+ } else if (chain == CHAIN_2){
+ config = config | (1 << 4);
+ } else {
+ throw uhd::runtime_error("[ad9361_device_t] Can not read both chains synchronously");
+ }
+
+ if(direction == RX)
+ {
+ base = 0xF0;
+ } else {
+ base = 0x60;
+ }
+
+ _io_iface->poke8(base+5,config);
+
+ std::vector<boost::int16_t> taps;
+ boost::uint8_t lower_val;
+ boost::uint8_t higher_val;
+ boost::uint16_t coeff;
+ for(size_t i = 0;i < num_taps;i++)
+ {
+ _io_iface->poke8(base,0x00+i);
+ lower_val = _io_iface->peek8(base+3);
+ higher_val = _io_iface->peek8(base+4);
+ coeff = ((higher_val << 8) | lower_val);
+ taps.push_back(boost::int16_t(coeff));
+ }
+
+ config = (config & (~(1 << 1))); //disable filter clock
+ _io_iface->poke8(base+5,config);
+ return taps;
+}
+
+/*
+ * Returns either RX TIA LPF or TX Secondary LPF
+ * depending on the direction.
+ * See UG570 for details on used scaling factors. */
+filter_info_base::sptr ad9361_device_t::_get_filter_lp_tia_sec(direction_t direction)
+{
+ double cutoff = 0;
+
+ if(direction == RX)
+ {
+ cutoff = 2.5 * _rx_tia_lp_bw;
+ } else {
+ cutoff = 5 * _tx_sec_lp_bw;
+ }
+
+ filter_info_base::sptr lp(new analog_filter_lp(filter_info_base::ANALOG_LOW_PASS, false, 0, "single-pole", cutoff, 20));
+ return lp;
+}
+
+/*
+ * Returns RX/TX BB LPF.
+ * See UG570 for details on used scaling factors. */
+filter_info_base::sptr ad9361_device_t::_get_filter_lp_bb(direction_t direction)
+{
+ double cutoff = 0;
+ if(direction == RX)
+ {
+ cutoff = 1.4 * _rx_bb_lp_bw;
+ } else {
+ cutoff = 1.6 * _tx_bb_lp_bw;
+ }
+
+ filter_info_base::sptr bb_lp(new analog_filter_lp(filter_info_base::ANALOG_LOW_PASS, false, 1, "third-order Butterworth", cutoff, 60));
+ return bb_lp;
+}
+
+/*
+ * For RX direction the DEC3 is returned.
+ * For TX direction the INT3 is returned. */
+filter_info_base::sptr ad9361_device_t::_get_filter_dec_int_3(direction_t direction)
+{
+ boost::uint8_t enable = 0;
+ double rate = _adcclock_freq;
+ double full_scale;
+ size_t dec = 0;
+ size_t interpol = 0;
+ filter_info_base::filter_type type = filter_info_base::DIGITAL_I16;
+ std::string name;
+ boost::int16_t taps_array_rx[] = {55, 83, 0, -393, -580, 0, 1914, 4041, 5120, 4041, 1914, 0, -580, -393, 0, 83, 55};
+ boost::int16_t taps_array_tx[] = {36, -19, 0, -156, -12, 0, 479, 233, 0, -1215, -993, 0, 3569, 6277, 8192, 6277, 3569, 0, -993, -1215, 0, 223, 479, 0, -12, -156, 0, -19, 36};
+ std::vector<boost::int16_t> taps;
+
+ filter_info_base::sptr ret;
+
+ if(direction == RX)
+ {
+ full_scale = 16384;
+ dec = 3;
+ interpol = 1;
+
+ enable = _io_iface->peek8(0x003);
+ enable = ((enable >> 4) & 0x03);
+ taps.assign(taps_array_rx, taps_array_rx + sizeof(taps_array_rx) / sizeof(boost::int16_t) );
+
+ } else {
+ full_scale = 8192;
+ dec = 1;
+ interpol = 3;
+
+ boost::uint8_t use_dac_clk_div = _io_iface->peek8(0x00A);
+ use_dac_clk_div = ((use_dac_clk_div >> 3) & 0x01);
+ if(use_dac_clk_div == 1)
+ {
+ rate = rate / 2;
+ }
+
+ enable = _io_iface->peek8(0x002);
+ enable = ((enable >> 4) & 0x03);
+ if(enable == 2) //0 => int. by 1, 1 => int. by 2 (HB3), 2 => int. by 3
+ {
+ rate /= 3;
+ }
+
+ taps.assign(taps_array_tx, taps_array_tx + sizeof(taps_array_tx) / sizeof(boost::int16_t) );
+ }
+
+ ret = filter_info_base::sptr(new digital_filter_base<boost::int16_t>(type, (enable != 2) ? true : false, 2, rate, interpol, dec, full_scale, taps.size(), taps));
+ return ret;
+}
+
+filter_info_base::sptr ad9361_device_t::_get_filter_hb_3(direction_t direction)
+{
+ boost::uint8_t enable = 0;
+ double rate = _adcclock_freq;
+ double full_scale = 0;
+ size_t dec = 1;
+ size_t interpol = 1;
+ filter_info_base::filter_type type = filter_info_base::DIGITAL_I16;
+ boost::int16_t taps_array_rx[] = {1, 4, 6, 4, 1};
+ boost::int16_t taps_array_tx[] = {1, 2, 1};
+ std::vector<boost::int16_t> taps;
+
+ if(direction == RX)
+ {
+ full_scale = 16;
+ dec = 2;
+
+ enable = _io_iface->peek8(0x003);
+ enable = ((enable >> 4) & 0x03);
+ taps.assign(taps_array_rx, taps_array_rx + sizeof(taps_array_rx) / sizeof(boost::int16_t) );
+ } else {
+ full_scale = 2;
+ interpol = 2;
+
+ boost::uint8_t use_dac_clk_div = _io_iface->peek8(0x00A);
+ use_dac_clk_div = ((use_dac_clk_div >> 3) & 0x01);
+ if(use_dac_clk_div == 1)
+ {
+ rate = rate / 2;
+ }
+
+ enable = _io_iface->peek8(0x002);
+ enable = ((enable >> 4) & 0x03);
+ if(enable == 1)
+ {
+ rate /= 2;
+ }
+ taps.assign(taps_array_tx, taps_array_tx + sizeof(taps_array_tx) / sizeof(boost::int16_t) );
+ }
+
+ filter_info_base::sptr hb = filter_info_base::sptr(new digital_filter_base<boost::int16_t>(type, (enable != 1) ? true : false, 2, rate, interpol, dec, full_scale, taps.size(), taps));
+ return hb;
+}
+
+filter_info_base::sptr ad9361_device_t::_get_filter_hb_2(direction_t direction)
+{
+ boost::uint8_t enable = 0;
+ double rate = _adcclock_freq;
+ double full_scale = 0;
+ size_t dec = 1;
+ size_t interpol = 1;
+ filter_info_base::filter_type type = filter_info_base::DIGITAL_I16;
+ boost::int16_t taps_array[] = {-9, 0, 73, 128, 73, 0, -9};
+ std::vector<boost::int16_t> taps(taps_array, taps_array + sizeof(taps_array) / sizeof(boost::int16_t) );
+
+ digital_filter_base<boost::int16_t>::sptr hb_3 = boost::dynamic_pointer_cast<digital_filter_base<boost::int16_t> >(_get_filter_hb_3(direction));
+ digital_filter_base<boost::int16_t>::sptr dec_int_3 = boost::dynamic_pointer_cast<digital_filter_base<boost::int16_t> >(_get_filter_dec_int_3(direction));
+
+ if(direction == RX)
+ {
+ full_scale = 256;
+ dec = 2;
+ enable = _io_iface->peek8(0x003);
+ } else {
+ full_scale = 128;
+ interpol = 2;
+ enable = _io_iface->peek8(0x002);
+ }
+
+ enable = ((enable >> 3) & 0x01);
+
+ if(!(hb_3->is_bypassed()))
+ {
+ if(direction == RX)
+ {
+ rate = hb_3->get_output_rate();
+ }else if (direction == TX) {
+ rate = hb_3->get_input_rate();
+ if(enable)
+ {
+ rate /= 2;
+ }
+ }
+ } else { //else dec3/int3 or none of them is used.
+ if(direction == RX)
+ {
+ rate = dec_int_3->get_output_rate();
+ }else if (direction == TX) {
+ rate = dec_int_3->get_input_rate();
+ if(enable)
+ {
+ rate /= 2;
+ }
+ }
+ }
+
+ filter_info_base::sptr hb(new digital_filter_base<boost::int16_t>(type, (enable == 0) ? true : false, 3, rate, interpol, dec, full_scale, taps.size(), taps));
+ return hb;
+}
+
+filter_info_base::sptr ad9361_device_t::_get_filter_hb_1(direction_t direction)
+{
+ boost::uint8_t enable = 0;
+ double rate = 0;
+ double full_scale = 0;
+ size_t dec = 1;
+ size_t interpol = 1;
+ filter_info_base::filter_type type = filter_info_base::DIGITAL_I16;
+
+ std::vector<boost::int16_t> taps;
+ boost::int16_t taps_rx_array[] = {-8, 0, 42, 0, -147, 0, 619, 1013, 619, 0, -147, 0, 42, 0, -8};
+ boost::int16_t taps_tx_array[] = {-53, 0, 313, 0, -1155, 0, 4989, 8192, 4989, 0, -1155, 0, 313, 0, -53};
+
+ digital_filter_base<boost::int16_t>::sptr hb_2 = boost::dynamic_pointer_cast<digital_filter_base<boost::int16_t> >(_get_filter_hb_2(direction));
+
+ if(direction == RX)
+ {
+ full_scale = 2048;
+ dec = 2;
+ enable = _io_iface->peek8(0x003);
+ enable = ((enable >> 2) & 0x01);
+ rate = hb_2->get_output_rate();
+ taps.assign(taps_rx_array, taps_rx_array + sizeof(taps_rx_array) / sizeof(boost::int16_t) );
+ } else if (direction == TX) {
+ full_scale = 8192;
+ interpol = 2;
+ enable = _io_iface->peek8(0x002);
+ enable = ((enable >> 2) & 0x01);
+ rate = hb_2->get_input_rate();
+ if(enable)
+ {
+ rate /= 2;
+ }
+ taps.assign(taps_tx_array, taps_tx_array + sizeof(taps_tx_array) / sizeof(boost::int16_t) );
+ }
+
+ filter_info_base::sptr hb(new digital_filter_base<boost::int16_t>(type, (enable == 0) ? true : false, 4, rate, interpol, dec, full_scale, taps.size(), taps));
+ return hb;
+}
+
+filter_info_base::sptr ad9361_device_t::_get_filter_fir(direction_t direction, chain_t chain)
+{
+ double rate = 0;
+ size_t dec = 1;
+ size_t interpol = 1;
+ size_t max_num_taps = 128;
+ boost::uint8_t enable = 1;
+
+ digital_filter_base<boost::int16_t>::sptr hb_1 = boost::dynamic_pointer_cast<digital_filter_base<boost::int16_t> >(_get_filter_hb_1(direction));
+
+ if(direction == RX)
+ {
+ dec = _get_fir_dec_int(direction);
+ if(dec == 0)
+ {
+ enable = 0;
+ dec = 1;
+ }
+ interpol = 1;
+ rate = hb_1->get_output_rate();
+ }else if (direction == TX) {
+ interpol = _get_fir_dec_int(direction);
+ if(interpol == 0)
+ {
+ enable = 0;
+ interpol = 1;
+ }
+ dec = 1;
+ rate = hb_1->get_input_rate();
+ if(enable)
+ {
+ rate /= interpol;
+ }
+ }
+ max_num_taps = _get_num_fir_taps(direction);
+
+ filter_info_base::sptr fir(new digital_filter_fir<boost::int16_t>(filter_info_base::DIGITAL_FIR_I16, (enable == 0) ? true : false, 5, rate, interpol, dec, 32767, max_num_taps, _get_fir_taps(direction, chain)));
+
+ return fir;
+}
+
+void ad9361_device_t::_set_filter_fir(direction_t direction, chain_t channel, filter_info_base::sptr filter)
+{
+ digital_filter_fir<boost::int16_t>::sptr fir = boost::dynamic_pointer_cast<digital_filter_fir<boost::int16_t> >(filter);
+ //only write taps. Ignore everything else for now
+ _set_fir_taps(direction, channel, fir->get_taps());
+}
+
+/*
+ * If BW of one of the analog filters gets overwritten manually,
+ * _tx_analog_bw and _rx_analog_bw are not valid any more!
+ * For useful data in those variables set_bw_filter method should be used
+ */
+void ad9361_device_t::_set_filter_lp_bb(direction_t direction, filter_info_base::sptr filter)
+{
+ analog_filter_lp::sptr lpf = boost::dynamic_pointer_cast<analog_filter_lp>(filter);
+ double bw = lpf->get_cutoff();
+ if(direction == RX)
+ {
+ //remember: this function takes rf bw as its input and calibrated to 1.4 x the given value
+ _rx_bb_lp_bw = _calibrate_baseband_rx_analog_filter(2 * bw / 1.4); //returns bb bw
+
+ } else {
+ //remember: this function takes rf bw as its input and calibrates to 1.6 x the given value
+ _tx_bb_lp_bw = _calibrate_baseband_tx_analog_filter(2 * bw / 1.6);
+ }
+}
+
+void ad9361_device_t::_set_filter_lp_tia_sec(direction_t direction, filter_info_base::sptr filter)
+{
+ analog_filter_lp::sptr lpf = boost::dynamic_pointer_cast<analog_filter_lp>(filter);
+ double bw = lpf->get_cutoff();
+ if(direction == RX)
+ {
+ //remember: this function takes rf bw as its input and calibrated to 2.5 x the given value
+ _rx_tia_lp_bw = _calibrate_rx_TIAs(2 * bw / 2.5); //returns bb bw
+
+ } else {
+ //remember: this function takes rf bw as its input and calibrates to 5 x the given value
+ _tx_sec_lp_bw = _calibrate_secondary_tx_filter(2 * bw / 5);
+ }
+}
+
}}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 04:53:04 +0000