3 * Copyright 2003,2004,2008,2009 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
27 #include <usrp/usrp_basic.h>
28 #include "usrp/usrp_prims.h"
29 #include "usrp_interfaces.h"
30 #include "fpga_regs_common.h"
31 #include "fpga_regs_standard.h"
33 #include "db_boards.h"
44 #include <libusb-1.0/libusb.h>
47 using namespace ad9862;
49 #define NELEM(x) (sizeof (x) / sizeof (x[0]))
51 // These set the buffer size used for each end point using the fast
52 // usb interface. The kernel ends up locking down this much memory.
54 static const int FUSB_BUFFER_SIZE = fusb_sysconfig::default_buffer_size();
55 static const int FUSB_BLOCK_SIZE = fusb_sysconfig::max_block_size();
56 static const int FUSB_NBLOCKS = FUSB_BUFFER_SIZE / FUSB_BLOCK_SIZE;
59 static const double POLLING_INTERVAL = 0.1; // seconds
61 ////////////////////////////////////////////////////////////////
63 static libusb_device_handle *
64 open_rx_interface (libusb_device *dev)
66 libusb_device_handle *udh = usrp_open_rx_interface (dev);
68 fprintf (stderr, "usrp_basic_rx: can't open rx interface\n");
73 static libusb_device_handle *
74 open_tx_interface (libusb_device *dev)
76 libusb_device_handle *udh = usrp_open_tx_interface (dev);
78 fprintf (stderr, "usrp_basic_tx: can't open tx interface\n");
84 //////////////////////////////////////////////////////////////////
88 ////////////////////////////////////////////////////////////////
95 // These settings give us:
96 // CLKOUT1 = CLKIN = 64 MHz
97 // CLKOUT2 = CLKIN = 64 MHz
98 // ADC is clocked at 64 MHz
99 // DAC is clocked at 128 MHz
101 static unsigned char common_regs[] = {
103 REG_DLL, (DLL_DISABLE_INTERNAL_XTAL_OSC
106 REG_CLKOUT, CLKOUT2_EQ_DLL_OVER_2,
107 REG_AUX_ADC_CLK, AUX_ADC_CLK_CLK_OVER_4
111 usrp_basic::shutdown_daughterboards()
113 // nuke d'boards before we close down USB in ~usrp_basic
114 // shutdown() will do any board shutdown while the USRP can still
116 for(size_t i = 0; i < d_db.size(); i++)
117 for(size_t j = 0; j < d_db[i].size(); j++)
118 d_db[i][j]->shutdown();
122 usrp_basic::init_db(usrp_basic_sptr u)
125 throw std::invalid_argument("u is not this");
127 d_db[0] = instantiate_dbs(d_dbid[0], u, 0);
128 d_db[1] = instantiate_dbs(d_dbid[1], u, 1);
131 std::vector<db_base_sptr>
132 usrp_basic::db(int which_side)
134 which_side &= 0x1; // clamp it to avoid any reporting any errors
135 return d_db[which_side];
139 usrp_basic::is_valid(const usrp_subdev_spec &ss)
141 if (ss.side < 0 || ss.side > 1)
144 if (ss.subdev < 0 || ss.subdev >= d_db[ss.side].size())
151 usrp_basic::selected_subdev(const usrp_subdev_spec &ss)
154 throw std::invalid_argument("invalid subdev_spec");
156 return d_db[ss.side][ss.subdev];
172 usrp_basic::set_usb_data_rate (int usb_data_rate)
174 d_usb_data_rate = usb_data_rate;
175 d_bytes_per_poll = (int) (usb_data_rate * POLLING_INTERVAL);
179 usrp_basic::_write_aux_dac (int slot, int which_dac, int value)
181 return usrp_write_aux_dac (d_udh, slot, which_dac, value);
185 usrp_basic::_read_aux_adc (int slot, int which_adc, int *value)
187 return usrp_read_aux_adc (d_udh, slot, which_adc, value);
191 usrp_basic::_read_aux_adc (int slot, int which_adc)
194 if (!_read_aux_adc (slot, which_adc, &value))
201 usrp_basic::write_eeprom (int i2c_addr, int eeprom_offset, const std::string buf)
203 return usrp_eeprom_write (d_udh, i2c_addr, eeprom_offset, buf.data (), buf.size ());
207 usrp_basic::read_eeprom (int i2c_addr, int eeprom_offset, int len)
214 if (!usrp_eeprom_read (d_udh, i2c_addr, eeprom_offset, buf, len))
217 return std::string (buf, len);
221 usrp_basic::write_i2c (int i2c_addr, const std::string buf)
223 return usrp_i2c_write (d_udh, i2c_addr, buf.data (), buf.size ());
227 usrp_basic::read_i2c (int i2c_addr, int len)
234 if (!usrp_i2c_read (d_udh, i2c_addr, buf, len))
237 return std::string (buf, len);
241 usrp_basic::serial_number()
243 return usrp_serial_number(d_udh);
246 // ----------------------------------------------------------------
249 usrp_basic::set_adc_offset (int which_adc, int offset)
251 if (which_adc < 0 || which_adc > 3)
254 return _write_fpga_reg (FR_ADC_OFFSET_0 + which_adc, offset);
258 usrp_basic::set_dac_offset (int which_dac, int offset, int offset_pin)
260 if (which_dac < 0 || which_dac > 3)
263 int which_codec = which_dac >> 1;
264 int tx_a = (which_dac & 0x1) == 0;
265 int lo = ((offset & 0x3) << 6) | (offset_pin & 0x1);
266 int hi = (offset >> 2);
270 ok = _write_9862 (which_codec, REG_TX_A_OFFSET_LO, lo);
271 ok &= _write_9862 (which_codec, REG_TX_A_OFFSET_HI, hi);
274 ok = _write_9862 (which_codec, REG_TX_B_OFFSET_LO, lo);
275 ok &= _write_9862 (which_codec, REG_TX_B_OFFSET_HI, hi);
281 usrp_basic::set_adc_buffer_bypass (int which_adc, bool bypass)
283 if (which_adc < 0 || which_adc > 3)
286 int codec = which_adc >> 1;
287 int reg = (which_adc & 1) == 0 ? REG_RX_A : REG_RX_B;
289 unsigned char cur_rx;
290 unsigned char cur_pwr_dn;
292 // If the input buffer is bypassed, we need to power it down too.
294 bool ok = _read_9862 (codec, reg, &cur_rx);
295 ok &= _read_9862 (codec, REG_RX_PWR_DN, &cur_pwr_dn);
300 cur_rx |= RX_X_BYPASS_INPUT_BUFFER;
301 cur_pwr_dn |= ((which_adc & 1) == 0) ? RX_PWR_DN_BUF_A : RX_PWR_DN_BUF_B;
304 cur_rx &= ~RX_X_BYPASS_INPUT_BUFFER;
305 cur_pwr_dn &= ~(((which_adc & 1) == 0) ? RX_PWR_DN_BUF_A : RX_PWR_DN_BUF_B);
308 ok &= _write_9862 (codec, reg, cur_rx);
309 ok &= _write_9862 (codec, REG_RX_PWR_DN, cur_pwr_dn);
314 usrp_basic::set_dc_offset_cl_enable(int bits, int mask)
316 return _write_fpga_reg(FR_DC_OFFSET_CL_EN,
317 (d_fpga_shadows[FR_DC_OFFSET_CL_EN] & ~mask) | (bits & mask));
320 // ----------------------------------------------------------------
323 usrp_basic::_write_fpga_reg (int regno, int value)
326 fprintf (stdout, "_write_fpga_reg(%3d, 0x%08x)\n", regno, value);
330 if (regno >= 0 && regno < MAX_REGS)
331 d_fpga_shadows[regno] = value;
333 return usrp_write_fpga_reg (d_udh, regno, value);
337 usrp_basic::_write_fpga_reg_masked (int regno, int value, int mask)
339 //Only use this for registers who actually use a mask in the verilog firmware, like FR_RX_MASTER_SLAVE
340 //value is a 16 bits value and mask is a 16 bits mask
342 fprintf (stdout, "_write_fpga_reg_masked(%3d, 0x%04x,0x%04x)\n", regno, value, mask);
346 if (regno >= 0 && regno < MAX_REGS)
347 d_fpga_shadows[regno] = value;
349 return usrp_write_fpga_reg (d_udh, regno, (value & 0xffff) | ((mask & 0xffff)<<16));
354 usrp_basic::_read_fpga_reg (int regno, int *value)
356 return usrp_read_fpga_reg (d_udh, regno, value);
360 usrp_basic::_read_fpga_reg (int regno)
363 if (!_read_fpga_reg (regno, &value))
369 usrp_basic::_write_9862 (int which_codec, int regno, unsigned char value)
372 // FIXME really want to enable logging in usrp_prims:usrp_9862_write
373 fprintf(stdout, "_write_9862(codec = %d, regno = %2d, val = 0x%02x)\n", which_codec, regno, value);
377 return usrp_9862_write (d_udh, which_codec, regno, value);
382 usrp_basic::_read_9862 (int which_codec, int regno, unsigned char *value) const
384 return usrp_9862_read (d_udh, which_codec, regno, value);
388 usrp_basic::_read_9862 (int which_codec, int regno) const
391 if (!_read_9862 (which_codec, regno, &value))
397 usrp_basic::_write_spi (int optional_header, int enables, int format, std::string buf)
399 return usrp_spi_write (d_udh, optional_header, enables, format,
400 buf.data(), buf.size());
404 usrp_basic::_read_spi (int optional_header, int enables, int format, int len)
411 if (!usrp_spi_read (d_udh, optional_header, enables, format, buf, len))
414 return std::string (buf, len);
419 usrp_basic::_set_led (int which_led, bool on)
421 return usrp_set_led (d_udh, which_led, on);
425 usrp_basic::write_atr_tx_delay(int value)
427 return _write_fpga_reg(FR_ATR_TX_DELAY, value);
431 usrp_basic::write_atr_rx_delay(int value)
433 return _write_fpga_reg(FR_ATR_RX_DELAY, value);
437 * ----------------------------------------------------------------
438 * Routines to access and control daughterboard specific i/o
439 * ----------------------------------------------------------------
442 slot_id_to_oe_reg (int slot_id)
444 static int reg[4] = { FR_OE_0, FR_OE_1, FR_OE_2, FR_OE_3 };
445 assert (0 <= slot_id && slot_id < 4);
450 slot_id_to_io_reg (int slot_id)
452 static int reg[4] = { FR_IO_0, FR_IO_1, FR_IO_2, FR_IO_3 };
453 assert (0 <= slot_id && slot_id < 4);
458 slot_id_to_refclk_reg(int slot_id)
460 static int reg[4] = { FR_TX_A_REFCLK, FR_RX_A_REFCLK, FR_TX_B_REFCLK, FR_RX_B_REFCLK };
461 assert (0 <= slot_id && slot_id < 4);
466 slot_id_to_atr_mask_reg(int slot_id)
468 static int reg[4] = { FR_ATR_MASK_0, FR_ATR_MASK_1, FR_ATR_MASK_2, FR_ATR_MASK_3 };
469 assert (0 <= slot_id && slot_id < 4);
474 slot_id_to_atr_txval_reg(int slot_id)
476 static int reg[4] = { FR_ATR_TXVAL_0, FR_ATR_TXVAL_1, FR_ATR_TXVAL_2, FR_ATR_TXVAL_3 };
477 assert (0 <= slot_id && slot_id < 4);
482 slot_id_to_atr_rxval_reg(int slot_id)
484 static int reg[4] = { FR_ATR_RXVAL_0, FR_ATR_RXVAL_1, FR_ATR_RXVAL_2, FR_ATR_RXVAL_3 };
485 assert (0 <= slot_id && slot_id < 4);
490 to_slot(txrx_t txrx, int which_side)
496 return ((which_side & 0x1) << 1) | ((txrx & 0x1) == C_RX);
500 usrp_basic::common_set_pga(txrx_t txrx, int which_amp, double gain)
502 if (which_amp < 0 || which_amp > 3)
505 gain = std::min(common_pga_max(txrx),
506 std::max(common_pga_min(txrx), gain));
508 int codec = which_amp >> 1;
509 int int_gain = (int) rint((gain - common_pga_min(txrx)) / common_pga_db_per_step(txrx));
511 if (txrx == C_TX){ // 0 and 1 are same, as are 2 and 3
512 return _write_9862(codec, REG_TX_PGA, int_gain);
515 int reg = (which_amp & 1) == 0 ? REG_RX_A : REG_RX_B;
517 // read current value to get input buffer bypass flag.
518 unsigned char cur_rx;
519 if (!_read_9862(codec, reg, &cur_rx))
522 cur_rx = (cur_rx & RX_X_BYPASS_INPUT_BUFFER) | (int_gain & 0x7f);
523 return _write_9862(codec, reg, cur_rx);
528 usrp_basic::common_pga(txrx_t txrx, int which_amp) const
530 if (which_amp < 0 || which_amp > 3)
534 int codec = which_amp >> 1;
536 bool ok = _read_9862 (codec, REG_TX_PGA, &v);
540 return (pga_db_per_step() * v) + pga_min();
543 int codec = which_amp >> 1;
544 int reg = (which_amp & 1) == 0 ? REG_RX_A : REG_RX_B;
546 bool ok = _read_9862 (codec, reg, &v);
550 return (pga_db_per_step() * (v & 0x1f)) + pga_min();
555 usrp_basic::common_pga_min(txrx_t txrx) const
564 usrp_basic::common_pga_max(txrx_t txrx) const
573 usrp_basic::common_pga_db_per_step(txrx_t txrx) const
582 usrp_basic::_common_write_oe(txrx_t txrx, int which_side, int value, int mask)
584 if (! (0 <= which_side && which_side <= 1))
587 return _write_fpga_reg(slot_id_to_oe_reg(to_slot(txrx, which_side)),
588 (mask << 16) | (value & 0xffff));
592 usrp_basic::common_write_io(txrx_t txrx, int which_side, int value, int mask)
594 if (! (0 <= which_side && which_side <= 1))
597 return _write_fpga_reg(slot_id_to_io_reg(to_slot(txrx, which_side)),
598 (mask << 16) | (value & 0xffff));
602 usrp_basic::common_read_io(txrx_t txrx, int which_side, int *value)
604 if (! (0 <= which_side && which_side <= 1))
608 int reg = which_side + 1; // FIXME, *very* magic number (fix in serial_io.v)
609 bool ok = _read_fpga_reg(reg, &t);
614 *value = t & 0xffff; // FIXME, more magic
618 *value = (t >> 16) & 0xffff; // FIXME, more magic
624 usrp_basic::common_read_io(txrx_t txrx, int which_side)
627 if (!common_read_io(txrx, which_side, &value))
633 usrp_basic::common_write_refclk(txrx_t txrx, int which_side, int value)
635 if (! (0 <= which_side && which_side <= 1))
638 return _write_fpga_reg(slot_id_to_refclk_reg(to_slot(txrx, which_side)),
643 usrp_basic::common_write_atr_mask(txrx_t txrx, int which_side, int value)
645 if (! (0 <= which_side && which_side <= 1))
648 return _write_fpga_reg(slot_id_to_atr_mask_reg(to_slot(txrx, which_side)),
653 usrp_basic::common_write_atr_txval(txrx_t txrx, int which_side, int value)
655 if (! (0 <= which_side && which_side <= 1))
658 return _write_fpga_reg(slot_id_to_atr_txval_reg(to_slot(txrx, which_side)),
663 usrp_basic::common_write_atr_rxval(txrx_t txrx, int which_side, int value)
665 if (! (0 <= which_side && which_side <= 1))
668 return _write_fpga_reg(slot_id_to_atr_rxval_reg(to_slot(txrx, which_side)),
673 usrp_basic::common_write_aux_dac(txrx_t txrx, int which_side, int which_dac, int value)
675 return _write_aux_dac(to_slot(txrx, which_side), which_dac, value);
679 usrp_basic::common_read_aux_adc(txrx_t txrx, int which_side, int which_adc, int *value)
681 return _read_aux_adc(to_slot(txrx, which_side), which_adc, value);
685 usrp_basic::common_read_aux_adc(txrx_t txrx, int which_side, int which_adc)
687 return _read_aux_adc(to_slot(txrx, which_side), which_adc);
691 ////////////////////////////////////////////////////////////////
695 ////////////////////////////////////////////////////////////////
697 static unsigned char rx_init_regs[] = {
699 REG_RX_A, 0, // minimum gain = 0x00 (max gain = 0x14)
700 REG_RX_B, 0, // minimum gain = 0x00 (max gain = 0x14)
701 REG_RX_MISC, (RX_MISC_HS_DUTY_CYCLE | RX_MISC_CLK_DUTY),
702 REG_RX_IF, (RX_IF_USE_CLKOUT1
704 REG_RX_DIGITAL, (RX_DIGITAL_2_CHAN)
708 usrp_basic_rx::usrp_basic_rx (int which_board, int fusb_block_size, int fusb_nblocks,
709 const std::string fpga_filename,
710 const std::string firmware_filename
712 : usrp_basic (which_board, open_rx_interface, fpga_filename, firmware_filename),
713 d_devhandle (0), d_ephandle (0),
714 d_bytes_seen (0), d_first_read (true),
717 // initialize rx specific registers
719 if (!usrp_9862_write_many_all (d_udh, rx_init_regs, sizeof (rx_init_regs))){
720 fprintf (stderr, "usrp_basic_rx: failed to init AD9862 RX regs\n");
721 throw std::runtime_error ("usrp_basic_rx/init_9862");
725 // FIXME power down 2nd codec rx path
726 usrp_9862_write (d_udh, 1, REG_RX_PWR_DN, 0x1); // power down everything
729 // Reset the rx path and leave it disabled.
730 set_rx_enable (false);
731 usrp_set_fpga_rx_reset (d_udh, true);
732 usrp_set_fpga_rx_reset (d_udh, false);
734 set_fpga_rx_sample_rate_divisor (2); // usually correct
736 set_dc_offset_cl_enable(0xf, 0xf); // enable DC offset removal control loops
738 probe_rx_slots (false);
740 //d_db[0] = instantiate_dbs(d_dbid[0], this, 0);
741 //d_db[1] = instantiate_dbs(d_dbid[1], this, 1);
743 // check fusb buffering parameters
745 if (fusb_block_size < 0 || fusb_block_size > FUSB_BLOCK_SIZE)
746 throw std::out_of_range ("usrp_basic_rx: invalid fusb_block_size");
748 if (fusb_nblocks < 0)
749 throw std::out_of_range ("usrp_basic_rx: invalid fusb_nblocks");
751 if (fusb_block_size == 0)
752 fusb_block_size = fusb_sysconfig::default_block_size();
754 if (fusb_nblocks == 0)
755 fusb_nblocks = std::max (1, FUSB_BUFFER_SIZE / fusb_block_size);
757 d_devhandle = fusb_sysconfig::make_devhandle (d_udh, d_ctx);
758 d_ephandle = d_devhandle->make_ephandle (USRP_RX_ENDPOINT, true,
759 fusb_block_size, fusb_nblocks);
761 write_atr_mask(0, 0); // zero Rx A Auto Transmit/Receive regs
762 write_atr_txval(0, 0);
763 write_atr_rxval(0, 0);
764 write_atr_mask(1, 0); // zero Rx B Auto Transmit/Receive regs
765 write_atr_txval(1, 0);
766 write_atr_rxval(1, 0);
769 static unsigned char rx_fini_regs[] = {
770 REG_RX_PWR_DN, 0x1 // power down everything
773 usrp_basic_rx::~usrp_basic_rx ()
775 if (!set_rx_enable (false)){
776 fprintf (stderr, "usrp_basic_rx: set_fpga_rx_enable failed\n");
783 if (!usrp_9862_write_many_all (d_udh, rx_fini_regs, sizeof (rx_fini_regs))){
784 fprintf (stderr, "usrp_basic_rx: failed to fini AD9862 RX regs\n");
787 shutdown_daughterboards();
792 usrp_basic_rx::start ()
794 if (!usrp_basic::start ()) // invoke parent's method
797 // fire off reads before asserting rx_enable
799 if (!d_ephandle->start ()){
800 fprintf (stderr, "usrp_basic_rx: failed to start end point streaming");
804 if (!set_rx_enable (true)){
805 fprintf (stderr, "usrp_basic_rx: set_rx_enable failed\n");
813 usrp_basic_rx::stop ()
815 bool ok = usrp_basic::stop();
817 if (!set_rx_enable(false)){
818 fprintf (stderr, "usrp_basic_rx: set_rx_enable(false) failed\n");
822 if (!d_ephandle->stop()){
823 fprintf (stderr, "usrp_basic_rx: failed to stop end point streaming");
831 usrp_basic_rx::make (int which_board, int fusb_block_size, int fusb_nblocks,
832 const std::string fpga_filename,
833 const std::string firmware_filename)
835 usrp_basic_rx *u = 0;
838 u = new usrp_basic_rx (which_board, fusb_block_size, fusb_nblocks,
839 fpga_filename, firmware_filename);
851 usrp_basic_rx::set_fpga_rx_sample_rate_divisor (unsigned int div)
853 return _write_fpga_reg (FR_RX_SAMPLE_RATE_DIV, div - 1);
858 * \brief read data from the D/A's via the FPGA.
859 * \p len must be a multiple of 512 bytes.
861 * \returns the number of bytes read, or -1 on error.
863 * If overrun is non-NULL it will be set true iff an RX overrun is detected.
866 usrp_basic_rx::read (void *buf, int len, bool *overrun)
873 if (len < 0 || (len % 512) != 0){
874 fprintf (stderr, "usrp_basic_rx::read: invalid length = %d\n", len);
878 r = d_ephandle->read (buf, len);
883 * In many cases, the FPGA reports an rx overrun right after we
884 * enable the Rx path. If this is our first read, check for the
885 * overrun to clear the condition, then ignore the result.
887 if (0 && d_first_read){ // FIXME
888 d_first_read = false;
890 usrp_check_rx_overrun (d_udh, &bogus_overrun);
893 if (overrun != 0 && d_bytes_seen >= d_bytes_per_poll){
895 if (!usrp_check_rx_overrun (d_udh, overrun)){
896 fprintf (stderr, "usrp_basic_rx: usrp_check_rx_overrun failed\n");
904 usrp_basic_rx::set_rx_enable (bool on)
907 return usrp_set_fpga_rx_enable (d_udh, on);
910 // conditional disable, return prev state
912 usrp_basic_rx::disable_rx ()
914 bool enabled = rx_enable ();
916 set_rx_enable (false);
922 usrp_basic_rx::restore_rx (bool on)
924 if (on != rx_enable ())
929 usrp_basic_rx::probe_rx_slots (bool verbose)
931 struct usrp_dboard_eeprom eeprom;
932 static int slot_id_map[2] = { SLOT_RX_A, SLOT_RX_B };
933 static const char *slot_name[2] = { "RX d'board A", "RX d'board B" };
935 for (int i = 0; i < 2; i++){
936 int slot_id = slot_id_map [i];
938 usrp_dbeeprom_status_t s = usrp_read_dboard_eeprom (d_udh, slot_id, &eeprom);
942 d_dbid[i] = eeprom.id;
943 msg = usrp_dbid_to_string (eeprom.id).c_str ();
944 set_adc_offset (2*i+0, eeprom.offset[0]);
945 set_adc_offset (2*i+1, eeprom.offset[1]);
946 _write_fpga_reg (slot_id_to_oe_reg(slot_id), (0xffff << 16) | eeprom.oe);
947 _write_fpga_reg (slot_id_to_io_reg(slot_id), (0xffff << 16) | 0x0000);
953 _write_fpga_reg (slot_id_to_oe_reg(slot_id), (0xffff << 16) | 0x0000);
954 _write_fpga_reg (slot_id_to_io_reg(slot_id), (0xffff << 16) | 0x0000);
957 case UDBE_INVALID_EEPROM:
959 msg = "Invalid EEPROM contents";
960 _write_fpga_reg (slot_id_to_oe_reg(slot_id), (0xffff << 16) | 0x0000);
961 _write_fpga_reg (slot_id_to_io_reg(slot_id), (0xffff << 16) | 0x0000);
971 fprintf (stderr, "%s: %s\n", slot_name[i], msg);
977 usrp_basic_rx::set_pga (int which_amp, double gain)
979 return common_set_pga(C_RX, which_amp, gain);
983 usrp_basic_rx::pga(int which_amp) const
985 return common_pga(C_RX, which_amp);
989 usrp_basic_rx::pga_min() const
991 return common_pga_min(C_RX);
995 usrp_basic_rx::pga_max() const
997 return common_pga_max(C_RX);
1001 usrp_basic_rx::pga_db_per_step() const
1003 return common_pga_db_per_step(C_RX);
1007 usrp_basic_rx::_write_oe (int which_side, int value, int mask)
1009 return _common_write_oe(C_RX, which_side, value, mask);
1013 usrp_basic_rx::write_io (int which_side, int value, int mask)
1015 return common_write_io(C_RX, which_side, value, mask);
1019 usrp_basic_rx::read_io (int which_side, int *value)
1021 return common_read_io(C_RX, which_side, value);
1025 usrp_basic_rx::read_io (int which_side)
1027 return common_read_io(C_RX, which_side);
1031 usrp_basic_rx::write_refclk(int which_side, int value)
1033 return common_write_refclk(C_RX, which_side, value);
1037 usrp_basic_rx::write_atr_mask(int which_side, int value)
1039 return common_write_atr_mask(C_RX, which_side, value);
1043 usrp_basic_rx::write_atr_txval(int which_side, int value)
1045 return common_write_atr_txval(C_RX, which_side, value);
1049 usrp_basic_rx::write_atr_rxval(int which_side, int value)
1051 return common_write_atr_rxval(C_RX, which_side, value);
1055 usrp_basic_rx::write_aux_dac (int which_side, int which_dac, int value)
1057 return common_write_aux_dac(C_RX, which_side, which_dac, value);
1061 usrp_basic_rx::read_aux_adc (int which_side, int which_adc, int *value)
1063 return common_read_aux_adc(C_RX, which_side, which_adc, value);
1067 usrp_basic_rx::read_aux_adc (int which_side, int which_adc)
1069 return common_read_aux_adc(C_RX, which_side, which_adc);
1073 usrp_basic_rx::block_size () const { return d_ephandle->block_size(); }
1075 ////////////////////////////////////////////////////////////////
1079 ////////////////////////////////////////////////////////////////
1083 // DAC input rate 64 MHz interleaved for a total input rate of 128 MHz
1084 // DAC input is latched on rising edge of CLKOUT2
1087 // coarse modulator disabled
1090 static unsigned char tx_init_regs[] = {
1092 REG_TX_A_OFFSET_LO, 0,
1093 REG_TX_A_OFFSET_HI, 0,
1094 REG_TX_B_OFFSET_LO, 0,
1095 REG_TX_B_OFFSET_HI, 0,
1096 REG_TX_A_GAIN, (TX_X_GAIN_COARSE_FULL | 0),
1097 REG_TX_B_GAIN, (TX_X_GAIN_COARSE_FULL | 0),
1098 REG_TX_PGA, 0xff, // maximum gain (0 dB)
1100 REG_TX_IF, (TX_IF_USE_CLKOUT1
1104 | TX_IF_INTERLEAVED),
1105 REG_TX_DIGITAL, (TX_DIGITAL_2_DATA_PATHS
1106 | TX_DIGITAL_INTERPOLATE_4X),
1107 REG_TX_MODULATOR, (TX_MODULATOR_DISABLE_NCO
1108 | TX_MODULATOR_COARSE_MODULATION_NONE),
1109 REG_TX_NCO_FTW_7_0, 0,
1110 REG_TX_NCO_FTW_15_8, 0,
1111 REG_TX_NCO_FTW_23_16, 0
1114 usrp_basic_tx::usrp_basic_tx (int which_board, int fusb_block_size, int fusb_nblocks,
1115 const std::string fpga_filename,
1116 const std::string firmware_filename)
1117 : usrp_basic (which_board, open_tx_interface, fpga_filename, firmware_filename),
1118 d_devhandle (0), d_ephandle (0),
1119 d_bytes_seen (0), d_first_write (true),
1122 if (!usrp_9862_write_many_all (d_udh, tx_init_regs, sizeof (tx_init_regs))){
1123 fprintf (stderr, "usrp_basic_tx: failed to init AD9862 TX regs\n");
1124 throw std::runtime_error ("usrp_basic_tx/init_9862");
1128 // FIXME power down 2nd codec tx path
1129 usrp_9862_write (d_udh, 1, REG_TX_PWR_DN,
1130 (TX_PWR_DN_TX_DIGITAL
1131 | TX_PWR_DN_TX_ANALOG_BOTH));
1134 // Reset the tx path and leave it disabled.
1135 set_tx_enable (false);
1136 usrp_set_fpga_tx_reset (d_udh, true);
1137 usrp_set_fpga_tx_reset (d_udh, false);
1139 set_fpga_tx_sample_rate_divisor (4); // we're using interp x4
1141 probe_tx_slots (false);
1143 //d_db[0] = instantiate_dbs(d_dbid[0], this, 0);
1144 //d_db[1] = instantiate_dbs(d_dbid[1], this, 1);
1146 // check fusb buffering parameters
1148 if (fusb_block_size < 0 || fusb_block_size > FUSB_BLOCK_SIZE)
1149 throw std::out_of_range ("usrp_basic_rx: invalid fusb_block_size");
1151 if (fusb_nblocks < 0)
1152 throw std::out_of_range ("usrp_basic_rx: invalid fusb_nblocks");
1154 if (fusb_block_size == 0)
1155 fusb_block_size = FUSB_BLOCK_SIZE;
1157 if (fusb_nblocks == 0)
1158 fusb_nblocks = std::max (1, FUSB_BUFFER_SIZE / fusb_block_size);
1160 d_devhandle = fusb_sysconfig::make_devhandle (d_udh, d_ctx);
1161 d_ephandle = d_devhandle->make_ephandle (USRP_TX_ENDPOINT, false,
1162 fusb_block_size, fusb_nblocks);
1164 write_atr_mask(0, 0); // zero Tx A Auto Transmit/Receive regs
1165 write_atr_txval(0, 0);
1166 write_atr_rxval(0, 0);
1167 write_atr_mask(1, 0); // zero Tx B Auto Transmit/Receive regs
1168 write_atr_txval(1, 0);
1169 write_atr_rxval(1, 0);
1173 static unsigned char tx_fini_regs[] = {
1174 REG_TX_PWR_DN, (TX_PWR_DN_TX_DIGITAL
1175 | TX_PWR_DN_TX_ANALOG_BOTH),
1176 REG_TX_MODULATOR, (TX_MODULATOR_DISABLE_NCO
1177 | TX_MODULATOR_COARSE_MODULATION_NONE)
1180 usrp_basic_tx::~usrp_basic_tx ()
1182 d_ephandle->stop ();
1186 if (!usrp_9862_write_many_all (d_udh, tx_fini_regs, sizeof (tx_fini_regs))){
1187 fprintf (stderr, "usrp_basic_tx: failed to fini AD9862 TX regs\n");
1190 shutdown_daughterboards();
1194 usrp_basic_tx::start ()
1196 if (!usrp_basic::start ())
1199 if (!set_tx_enable (true)){
1200 fprintf (stderr, "usrp_basic_tx: set_tx_enable failed\n");
1204 if (!d_ephandle->start ()){
1205 fprintf (stderr, "usrp_basic_tx: failed to start end point streaming");
1213 usrp_basic_tx::stop ()
1215 bool ok = usrp_basic::stop ();
1217 if (!d_ephandle->stop ()){
1218 fprintf (stderr, "usrp_basic_tx: failed to stop end point streaming");
1222 if (!set_tx_enable (false)){
1223 fprintf (stderr, "usrp_basic_tx: set_tx_enable(false) failed\n");
1231 usrp_basic_tx::make (int which_board, int fusb_block_size, int fusb_nblocks,
1232 const std::string fpga_filename,
1233 const std::string firmware_filename)
1235 usrp_basic_tx *u = 0;
1238 u = new usrp_basic_tx (which_board, fusb_block_size, fusb_nblocks,
1239 fpga_filename, firmware_filename);
1251 usrp_basic_tx::set_fpga_tx_sample_rate_divisor (unsigned int div)
1253 return _write_fpga_reg (FR_TX_SAMPLE_RATE_DIV, div - 1);
1257 * \brief Write data to the A/D's via the FPGA.
1259 * \p len must be a multiple of 512 bytes.
1260 * \returns number of bytes written or -1 on error.
1262 * if \p underrun is non-NULL, it will be set to true iff
1263 * a transmit underrun condition is detected.
1266 usrp_basic_tx::write (const void *buf, int len, bool *underrun)
1273 if (len < 0 || (len % 512) != 0){
1274 fprintf (stderr, "usrp_basic_tx::write: invalid length = %d\n", len);
1278 r = d_ephandle->write (buf, len);
1283 * In many cases, the FPGA reports an tx underrun right after we
1284 * enable the Tx path. If this is our first write, check for the
1285 * underrun to clear the condition, then ignore the result.
1287 if (d_first_write && d_bytes_seen >= 4 * FUSB_BLOCK_SIZE){
1288 d_first_write = false;
1289 bool bogus_underrun;
1290 usrp_check_tx_underrun (d_udh, &bogus_underrun);
1293 if (underrun != 0 && d_bytes_seen >= d_bytes_per_poll){
1295 if (!usrp_check_tx_underrun (d_udh, underrun)){
1296 fprintf (stderr, "usrp_basic_tx: usrp_check_tx_underrun failed\n");
1304 usrp_basic_tx::wait_for_completion ()
1306 d_ephandle->wait_for_completion ();
1310 usrp_basic_tx::set_tx_enable (bool on)
1313 // fprintf (stderr, "set_tx_enable %d\n", on);
1314 return usrp_set_fpga_tx_enable (d_udh, on);
1317 // conditional disable, return prev state
1319 usrp_basic_tx::disable_tx ()
1321 bool enabled = tx_enable ();
1323 set_tx_enable (false);
1329 usrp_basic_tx::restore_tx (bool on)
1331 if (on != tx_enable ())
1336 usrp_basic_tx::probe_tx_slots (bool verbose)
1338 struct usrp_dboard_eeprom eeprom;
1339 static int slot_id_map[2] = { SLOT_TX_A, SLOT_TX_B };
1340 static const char *slot_name[2] = { "TX d'board A", "TX d'board B" };
1342 for (int i = 0; i < 2; i++){
1343 int slot_id = slot_id_map [i];
1344 const char *msg = 0;
1345 usrp_dbeeprom_status_t s = usrp_read_dboard_eeprom (d_udh, slot_id, &eeprom);
1349 d_dbid[i] = eeprom.id;
1350 msg = usrp_dbid_to_string (eeprom.id).c_str ();
1351 // FIXME, figure out interpretation of dc offset for TX d'boards
1352 // offset = (eeprom.offset[1] << 16) | (eeprom.offset[0] & 0xffff);
1353 _write_fpga_reg (slot_id_to_oe_reg(slot_id), (0xffff << 16) | eeprom.oe);
1354 _write_fpga_reg (slot_id_to_io_reg(slot_id), (0xffff << 16) | 0x0000);
1357 case UDBE_NO_EEPROM:
1360 _write_fpga_reg (slot_id_to_oe_reg(slot_id), (0xffff << 16) | 0x0000);
1361 _write_fpga_reg (slot_id_to_io_reg(slot_id), (0xffff << 16) | 0x0000);
1364 case UDBE_INVALID_EEPROM:
1366 msg = "Invalid EEPROM contents";
1367 _write_fpga_reg (slot_id_to_oe_reg(slot_id), (0xffff << 16) | 0x0000);
1368 _write_fpga_reg (slot_id_to_io_reg(slot_id), (0xffff << 16) | 0x0000);
1378 fprintf (stderr, "%s: %s\n", slot_name[i], msg);
1384 usrp_basic_tx::set_pga (int which_amp, double gain)
1386 return common_set_pga(C_TX, which_amp, gain);
1390 usrp_basic_tx::pga (int which_amp) const
1392 return common_pga(C_TX, which_amp);
1396 usrp_basic_tx::pga_min() const
1398 return common_pga_min(C_TX);
1402 usrp_basic_tx::pga_max() const
1404 return common_pga_max(C_TX);
1408 usrp_basic_tx::pga_db_per_step() const
1410 return common_pga_db_per_step(C_TX);
1414 usrp_basic_tx::_write_oe (int which_side, int value, int mask)
1416 return _common_write_oe(C_TX, which_side, value, mask);
1420 usrp_basic_tx::write_io (int which_side, int value, int mask)
1422 return common_write_io(C_TX, which_side, value, mask);
1426 usrp_basic_tx::read_io (int which_side, int *value)
1428 return common_read_io(C_TX, which_side, value);
1432 usrp_basic_tx::read_io (int which_side)
1434 return common_read_io(C_TX, which_side);
1438 usrp_basic_tx::write_refclk(int which_side, int value)
1440 return common_write_refclk(C_TX, which_side, value);
1444 usrp_basic_tx::write_atr_mask(int which_side, int value)
1446 return common_write_atr_mask(C_TX, which_side, value);
1450 usrp_basic_tx::write_atr_txval(int which_side, int value)
1452 return common_write_atr_txval(C_TX, which_side, value);
1456 usrp_basic_tx::write_atr_rxval(int which_side, int value)
1458 return common_write_atr_rxval(C_TX, which_side, value);
1462 usrp_basic_tx::write_aux_dac (int which_side, int which_dac, int value)
1464 return common_write_aux_dac(C_TX, which_side, which_dac, value);
1468 usrp_basic_tx::read_aux_adc (int which_side, int which_adc, int *value)
1470 return common_read_aux_adc(C_TX, which_side, which_adc, value);
1474 usrp_basic_tx::read_aux_adc (int which_side, int which_adc)
1476 return common_read_aux_adc(C_TX, which_side, which_adc);
1480 usrp_basic_tx::block_size () const { return d_ephandle->block_size(); }