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/* -*- c++ -*- */
/*
* Copyright 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 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.
*/
/*
* SWIG interface defs for Microtune 4937 and eval board with Eric's daughterboard
*/
/*!
* \brief abstract class for controlling microtune 4937 tuner module
*/
class microtune_4937 {
public:
microtune_4937 ();
virtual ~microtune_4937 ();
// returns actual freq or 0 if error (easier interface for SWIG)
double set_RF_freq (double 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 ();
private:
//! \returns true iff successful
virtual bool i2c_write (int addr, const unsigned char *buf, int nbytes) = 0;
//! \returns number of bytes read or -1 if error
virtual int i2c_read (int addr, unsigned char *buf, int max_bytes) = 0;
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 */
};
/*!
* \brief concrete class for controlling microtune 4937 eval board attached to parallel port
*/
class microtune_eval_board : public microtune_4937 {
public:
microtune_eval_board (int which_pp = 0);
~microtune_eval_board ();
//! is the eval board present?
bool board_present_p ();
/*!
* \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);
private:
//! \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);
};
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