--- /dev/null
+/* -*- 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);
+};