--- /dev/null
+
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2006,2008 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.
+ */
+
+#ifndef INCLUDED_USRP_SINK_BASE_H
+#define INCLUDED_USRP_SINK_BASE_H
+
+#include <usrp_base.h>
+#include <stdexcept>
+#include <usrp_tune_result.h>
+#include <usrp_dbid.h>
+
+class usrp_standard_tx;
+
+/*!
+ * \brief abstract interface to Universal Software Radio Peripheral Tx path (Rev 1)
+ */
+class usrp_sink_base : public usrp_base {
+ private:
+ boost::shared_ptr<usrp_standard_tx> d_usrp;
+ int d_nunderruns;
+
+ protected:
+ usrp_sink_base (const std::string &name,
+ gr_io_signature_sptr input_signature,
+ int which_board,
+ unsigned int interp_rate,
+ int nchan,
+ int mux,
+ int fusb_block_size,
+ int fusb_nblocks,
+ const std::string fpga_filename,
+ const std::string firmware_filename
+ ) throw (std::runtime_error);
+
+ /*!
+ * \brief convert between input item format and usrp native format
+ *
+ * \param[in] input_items stream(s) of input items
+ * \param[in] input_index starting index in input_items
+ * \param[in] input_items_available number of items available starting at item[index]
+ * \param[out] input_items_consumed number of input items consumed by copy
+ * \param[out] usrp_buffer destination buffer
+ * \param[in] usrp_buffer_length \p usrp_buffer length in bytes
+ * \param[out] bytes_written number of bytes written into \p usrp_buffer
+ */
+ virtual void copy_to_usrp_buffer (gr_vector_const_void_star &input_items,
+ int input_index,
+ int input_items_available,
+ int &input_items_consumed,
+ void *usrp_buffer,
+ int usrp_buffer_length,
+ int &bytes_written) = 0;
+
+ public:
+ ~usrp_sink_base ();
+
+ int work (int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items);
+
+ /*!
+ * \brief Set interpolator rate. \p rate must be in [4, 1024] and a multiple of 4.
+ *
+ * The final complex sample rate across the USB is
+ * dac_freq () / interp_rate () * nchannels ()
+ */
+ bool set_interp_rate (unsigned int rate);
+ bool set_nchannels (int nchan);
+ bool set_mux (int mux);
+ int determine_tx_mux_value(usrp_subdev_spec ss);
+ int determine_tx_mux_value(usrp_subdev_spec ss_a, usrp_subdev_spec ss_b);
+
+ /*!
+ * \brief set the frequency of the digital up converter.
+ *
+ * \p channel must be 0. \p freq is the center frequency in Hz.
+ * It must be in the range [-44M, 44M]. The frequency specified is
+ * quantized. Use tx_freq to retrieve the actual value used.
+ */
+ bool set_tx_freq (int channel, double freq);
+
+ long dac_rate() const { return converter_rate(); } // alias
+ long dac_freq() const { return converter_rate(); } // deprecated alias
+
+ unsigned int interp_rate () const;
+ int nchannels () const;
+ int mux () const;
+ double tx_freq (int channel) const;
+ int nunderruns () const { return d_nunderruns; }
+
+ bool has_rx_halfband();
+ bool has_tx_halfband();
+ int nddcs();
+ int nducs();
+
+ /*!
+ * \brief Called to enable drivers, etc for i/o devices.
+ *
+ * This allows a block to enable an associated driver to begin
+ * transfering data just before we start to execute the scheduler.
+ * The end result is that this reduces latency in the pipeline when
+ * dealing with audio devices, usrps, etc.
+ */
+ bool start();
+
+ /*!
+ * \brief Called to disable drivers, etc for i/o devices.
+ */
+ bool stop();
+
+ /*!
+ * \brief High-level "tune" method. Works for the single channel case.
+ *
+ * This method adjusts both the daughterboard LO and the DUC so that
+ * DC in the complex baseband samples ends up at RF target_freq.
+ *
+ * \param chan which DUC channel we're controlling (usually == which_side).
+ * \param db the daughterboard we're controlling.
+ * \param target_freq the RF frequency we want our baseband translated to.
+ * \param[out] result details how the hardware was configured.
+ *
+ * \returns true iff everything was successful.
+ */
+ bool tune(int chan, db_base_sptr db, double target_freq, usrp_tune_result *result);
+
+ /*!
+ * \brief Select suitable Tx daughterboard
+ */
+ usrp_subdev_spec pick_tx_subdevice();
+};
+
+#endif /* INCLUDED_USRP_SINK_BASE_H */
projects / debian / gnuradio / blobdiff