//

// Copyright 2008 Free Software Foundation, Inc.

// 

// This file is part of GNU Radio

// 

// GNU Radio 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 asversion 3, or (at your option)

// any later version.

// 

// GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to

// the Free Software Foundation, Inc., 51 Franklin Street,

// Boston, MA 02110-1301, USA.

#include <db_basic.h>

#include <db_base_impl.h>

db_basic_tx::db_basic_tx(boost::shared_ptr<usrp_basic> usrp, int which)

  : db_base(usrp, which)

{

  // Handler for Basic Tx daughterboards.

  // 

  // @param usrp: instance of usrp.source_c

  // @param which: which side: 0 or 1 corresponding to TX_A or TX_B respectively

  set_gain((gain_min() + gain_max()) / 2);         // initialize gain

}

db_basic_tx::~db_basic_tx()

{

}

double 

db_basic_tx::freq_min() 

{

  return -90e9;

}

double 

db_basic_tx::freq_max() 

{

  return 90e9;

}

struct freq_result_t 

db_basic_tx::set_freq(double target_freq)

{

  // Set the frequency.

  // 

  // @param freq:  target RF frequency in Hz

  // @type freq:   double

  // 

  // @returns (ok, actual_baseband_freq) where:

  //   ok is True or False and indicates success or failure,

  //   actual_baseband_freq is the RF frequency that corresponds to DC in the IF.

  struct freq_result_t args = {false, 0};

  args.ok = true;

  args.baseband_freq = 0.0;

  return args;

}

float

db_basic_tx::gain_min()

{

  return usrp()->pga_min();

}

float

db_basic_tx::gain_max()

{

  return usrp()->pga_max();

}

float

db_basic_tx::gain_db_per_step()

{

  return usrp()->pga_db_per_step();

}

bool 

db_basic_tx::set_gain(float gain)

{

  // Set the gain.

  // 

  // @param gain:  gain in decibels

  // @returns True/False

  bool ok = usrp()->set_pga(d_which * 2 + 0, gain);

  ok = ok && usrp()->set_pga(d_which * 2 + 1, gain);

  return ok;

}

bool 

db_basic_tx::is_quadrature()

{

  // Return True if this board requires both I & Q analog channels.

  return true;

}

/******************************************************************************/

db_basic_rx::db_basic_rx(usrp_basic_sptr usrp, int which, int subdev)

  : db_base(usrp, which)

{

  // Handler for Basic Rx daughterboards.

  // 

  // @param usrp: instance of usrp.source_c

  // @param which: which side: 0 or 1 corresponding to TX_A or TX_B respectively

  // @param subdev: which analog i/o channel: 0 or 1

  // @type subdev: int

  d_subdev = subdev;

  bypass_adc_buffers(true);

  if(0) {       // Doing this would give us a different default than the historical values...

    set_gain(float(gain_min() + gain_max()) / 2.0);       // initialize gain

  }

}

db_basic_rx::~db_basic_rx()

{

}

double

db_basic_rx::freq_min() 

{

  return -90e9;

}

double

db_basic_rx::freq_max()

{

  return 90e9;

}

struct freq_result_t 

db_basic_rx::set_freq(double target_freq)

{

  // Set the frequency.

  // 

  // @param freq:  target RF frequency in Hz

  // @type freq:   double

  // 

  // @returns (ok, actual_baseband_freq) where:

  //   ok is True or False and indicates success or failure,

  //   actual_baseband_freq is the RF frequency that corresponds to DC in the IF.

  struct freq_result_t args = {true, 0.0};

  return args;

}

float

db_basic_rx::gain_min()

{

  return usrp()->pga_min();

}

float

db_basic_rx::gain_max()

{

  return usrp()->pga_max();

}

float

db_basic_rx::gain_db_per_step()

{

  return usrp()->pga_db_per_step();

}

bool 

db_basic_rx::set_gain(float gain)

{

  // Set the gain.

  // 

  // @param gain:  gain in decibels

  // @returns True/False

  return usrp()->set_pga(d_which * 2 + d_subdev, gain);

}

bool 

db_basic_rx::is_quadrature()

{

  // Return True if this board requires both I & Q analog channels.

  // This bit of info is useful when setting up the USRP Rx mux register.

  return false;

}

/******************************************************************************/

db_lf_tx::db_lf_tx(usrp_basic_sptr usrp, int which)

  : db_basic_tx(usrp, which)

{

  // Handler for Low Freq Tx daughterboards.

  //

  // @param usrp: instance of usrp.source_c

  // @param which: which side: 0 or 1 corresponding to RX_A or RX_B respectively

}

db_lf_tx::~db_lf_tx()

{

}

double 

db_lf_tx::freq_min() 

{

  return -32e6;

}

double 

db_lf_tx::freq_max()

{

  return 32e6;

}

/******************************************************************************/

db_lf_rx::db_lf_rx(usrp_basic_sptr usrp, int which, int subdev)

  : db_basic_rx(usrp, which, subdev)

{

  // Handler for Low Freq Rx daughterboards.

  //

  // @param usrp: instance of usrp.source_c

  // @param which: which side: 0 or 1 corresponding to RX_A or RX_B respectively

  // @param subdev: which analog i/o channel: 0 or 1

  // @type subdev: int

}

db_lf_rx::~db_lf_rx()

{

}

double

db_lf_rx::freq_min() 

{

  return 0.0;

}

double

db_lf_rx::freq_max() 

{

  return 32e6;

}