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/* -*- c++ -*- */
 * Copyright 2001,2003 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 version 2, 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
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.

#ifndef _MICROTUNE_4937_H_
#define _MICROTUNE_4937_H_

#include <hamlib/rig.h>
#include "microtune_eval_board.h"

 * \brief abstract class for controlling microtune 4937 tuner module
00032 class microtune_4937 : public microtune_eval_board {
  microtune_4937(hamlib_port_t *port) : microtune_eval_board (port), d_reference_divider(640), d_fast_tuning_p(false) {}
  ~microtune_4937() {}

   * \brief select RF frequency to be tuned to output frequency.
   * \p freq is the requested frequency in Hz, \p actual_freq
   * is set to the actual frequency tuned.  It takes about 100 ms
   * for the PLL to settle.
   * \returns true iff sucessful.
  bool set_RF_freq (double freq, double *actual_freq);
   * \returns true iff PLL is locked
  bool pll_locked_p ();
   * \returns the output frequency (IF center freq) of the tuner in Hz.
  double get_output_freq ();

  int d_reference_divider;
  bool      d_fast_tuning_p;  /* if set, higher charge pump current:
                           faster tuning, worse phase noise
                           for distance < 10kHz to the carrier */

#endif /* _MICROTUNE_4937_H_ */

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