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/* -*-C++-*-
* File:         microtune_eval_board.h
* Description:  

 * Copyright 2001 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.


#include "serial.h"

class i2cio;
class i2c;

 * \brief concrete class for controlling a microtune eval board attached to parallel port
00042 class microtune_eval_board  {
  microtune_eval_board (hamlib_port_t *port);
  virtual ~microtune_eval_board ();

  //! is the eval board present?
  virtual bool board_present_p ();

   * \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.
  virtual bool set_RF_freq (double freq, double *actual_freq) = 0;
   * \returns true iff PLL is locked
  virtual bool pll_locked_p () = 0;
   * \returns the output frequency (IF center freq) of the tuner in Hz.
  virtual double get_output_freq () = 0;

   * \brief set RF and IF AGC control voltages ([0, 5] volts)
  void set_RF_AGC_voltage (float volts);
  void set_IF_AGC_voltage (float volts);

   * \brief set RF and IF AGC levels together (scale [0, 1000])
   * This provides a simple linear interface for adjusting both
   * the RF and IF gain in consort.  This is the easy to use interface.
   * 0 corresponds to minimum gain. 1000 corresponds to maximum gain.
  void set_AGC (float value_0_1000);

  //! \returns true iff successful
  virtual bool i2c_write (int addr, const unsigned char *buf, int nbytes);

  //! \returns number of bytes read or -1 if error
  virtual int i2c_read (int addr, unsigned char *buf, int max_bytes);

  void write_dac (int which, int value);
  void write_both_dacs (int val0, int val1);
  hamlib_port_t   *m_ppio;
  i2cio     *m_i2cio;
  i2c *m_i2c;


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