kopia lustrzana https://github.com/Hamlib/Hamlib
80 wiersze
2.3 KiB
C++
80 wiersze
2.3 KiB
C++
/* -*-C++-*-
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*******************************************************************************
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*
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* File: microtune_4937.h
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* Description:
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*
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*******************************************************************************
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*/
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/*
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* Copyright 2001 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _MICROTUNE_4937_H_
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#define _MICROTUNE_4937_H_
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/*!
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* \brief abstract class for controlling microtune 4937 tuner module
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*/
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class microtune_4937 {
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public:
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microtune_4937 () :
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i2c_addr (0xC2/2), reference_divider(640), fast_tuning_p (false) {};
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virtual ~microtune_4937 ();
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/*!
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* \brief select RF frequency to be tuned to output frequency.
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* \p freq is the requested frequency in Hz, \p actual_freq
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* is set to the actual frequency tuned. It takes about 100 ms
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* for the PLL to settle.
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*
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* \returns true iff sucessful.
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*/
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bool set_RF_freq (double freq, double *actual_freq);
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/*!
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* \returns true iff PLL is locked
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*/
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bool pll_locked_p ();
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/*!
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* \returns the output frequency of the tuner in Hz.
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*/
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double get_output_freq ();
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private:
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//! \returns true iff successful
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virtual bool i2c_write (int addr, const unsigned char *buf, int nbytes) = 0;
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//! \returns number of bytes read or -1 if error
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virtual int i2c_read (int addr, unsigned char *buf, int max_bytes) = 0;
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int i2c_addr;
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int reference_divider;
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bool fast_tuning_p; /* if set, higher charge pump current:
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faster tuning, worse phase noise
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for distance < 10kHz to the carrier */
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};
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#endif /* _MICROTUNE_4937_H_ */
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