+++ /dev/null
-/* -*- c++ -*- */
-/*
- * Copyright 2004 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_STANDARD_H
-#define INCLUDED_USRP_STANDARD_H
-
-#include <usrp_basic.h>
-
-class usrp_standard_common
-{
- int d_fpga_caps; // capability register val
-
-protected:
- usrp_standard_common(usrp_basic *parent);
-
-public:
- /*!
- *\brief does the FPGA implement the final Rx half-band filter?
- * If it doesn't, the maximum decimation factor with proper gain
- * is 1/2 of what it would otherwise be.
- */
- bool has_rx_halfband() const;
-
- /*!
- * \brief number of digital downconverters implemented in the FPGA
- * This will be 0, 1, 2 or 4.
- */
- int nddcs() const;
-
- /*!
- *\brief does the FPGA implement the initial Tx half-band filter?
- */
- bool has_tx_halfband() const;
-
- /*!
- * \brief number of digital upconverters implemented in the FPGA
- * This will be 0, 1, or 2.
- */
- int nducs() const;
-};
-
-/*!
- * \brief standard usrp RX class.
- *
- * Assumes digital down converter in FPGA
- */
-class usrp_standard_rx : public usrp_basic_rx, usrp_standard_common
-{
- private:
- static const int MAX_CHAN = 4;
- unsigned int d_decim_rate;
- int d_nchan;
- int d_sw_mux;
- int d_hw_mux;
- double d_rx_freq[MAX_CHAN];
-
- protected:
- usrp_standard_rx (int which_board,
- unsigned int decim_rate,
- int nchan = 1,
- int mux = -1,
- int mode = 0,
- int fusb_block_size = 0,
- int fusb_nblocks = 0,
- const std::string fpga_filename = "",
- const std::string firmware_filename = ""
- ); // throws if trouble
-
- bool write_hw_mux_reg ();
-
- public:
-
- enum {
- FPGA_MODE_NORMAL = 0x00,
- FPGA_MODE_LOOPBACK = 0x01,
- FPGA_MODE_COUNTING = 0x02,
- FPGA_MODE_COUNTING_32BIT = 0x04
- };
-
- ~usrp_standard_rx ();
-
- /*!
- * \brief invokes constructor, returns instance or 0 if trouble
- *
- * \param which_board Which USRP board on usb (not particularly useful; use 0)
- * \param fusb_block_size fast usb xfer block size. Must be a multiple of 512.
- * Use zero for a reasonable default.
- * \param fusb_nblocks number of fast usb URBs to allocate. Use zero for a reasonable default.
- */
- static usrp_standard_rx *make (int which_board,
- unsigned int decim_rate,
- int nchan = 1,
- int mux = -1,
- int mode = 0,
- int fusb_block_size = 0,
- int fusb_nblocks = 0,
- const std::string fpga_filename = "",
- const std::string firmware_filename = ""
- );
- /*!
- * \brief Set decimator rate. \p rate MUST BE EVEN and in [8, 256].
- *
- * The final complex sample rate across the USB is
- * adc_freq () / decim_rate () * nchannels ()
- */
- bool set_decim_rate (unsigned int rate);
-
- /*!
- * \brief Set number of active channels. \p nchannels must be 1, 2 or 4.
- *
- * The final complex sample rate across the USB is
- * adc_freq () / decim_rate () * nchannels ()
- */
- bool set_nchannels (int nchannels);
-
- /*!
- * \brief Set input mux configuration.
- *
- * This determines which ADC (or constant zero) is connected to
- * each DDC input. There are 4 DDCs. Each has two inputs.
- *
- * <pre>
- * Mux value:
- *
- * 3 2 1
- * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- * +-------+-------+-------+-------+-------+-------+-------+-------+
- * | Q3 | I3 | Q2 | I2 | Q1 | I1 | Q0 | I0 |
- * +-------+-------+-------+-------+-------+-------+-------+-------+
- *
- * Each 4-bit I field is either 0,1,2,3
- * Each 4-bit Q field is either 0,1,2,3 or 0xf (input is const zero)
- * All Q's must be 0xf or none of them may be 0xf
- * </pre>
- */
- bool set_mux (int mux);
-
- /*!
- * \brief set the frequency of the digital down converter.
- *
- * \p channel must be in the range [0,3]. \p freq is the center
- * frequency in Hz. \p freq may be either negative or postive.
- * The frequency specified is quantized. Use rx_freq to retrieve
- * the actual value used.
- */
- bool set_rx_freq (int channel, double freq);
-
- /*!
- * \brief set fpga mode
- */
- bool set_fpga_mode (int mode);
-
- /*!
- * \brief Set the digital down converter phase register.
- *
- * \param channel which ddc channel [0, 3]
- * \param phase 32-bit integer phase value.
- */
- bool set_ddc_phase(int channel, int phase);
-
- /*!
- * \brief Specify Rx data format.
- *
- * \param format format specifier
- *
- * Rx data format control register
- *
- * 3 2 1
- * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- * +-----------------------------------------+-+-+---------+-------+
- * | Reserved (Must be zero) |B|Q| WIDTH | SHIFT |
- * +-----------------------------------------+-+-+---------+-------+
- *
- * SHIFT specifies arithmetic right shift [0, 15]
- * WIDTH specifies bit-width of I & Q samples across the USB [1, 16] (not all valid)
- * Q if set deliver both I & Q, else just I
- * B if set bypass half-band filter.
- *
- * Right now the acceptable values are:
- *
- * B Q WIDTH SHIFT
- * 0 1 16 0
- * 0 1 8 8
- *
- * More valid combos to come.
- *
- * Default value is 0x00000300 16-bits, 0 shift, deliver both I & Q.
- */
- bool set_format(unsigned int format);
-
- static unsigned int make_format(int width=16, int shift=0,
- bool want_q=true, bool bypass_halfband=false);
- static int format_width(unsigned int format);
- static int format_shift(unsigned int format);
- static bool format_want_q(unsigned int format);
- static bool format_bypass_halfband(unsigned int format);
-
- // ACCESSORS
- unsigned int decim_rate () const;
- double rx_freq (int channel) const;
- int nchannels () const;
- int mux () const;
- unsigned int format () const;
-
- // called in base class to derived class order
- bool start ();
- bool stop ();
-};
-
-// ----------------------------------------------------------------
-
-/*!
- * \brief standard usrp TX class.
- *
- * Uses digital upconverter (coarse & fine modulators) in AD9862...
- */
-class usrp_standard_tx : public usrp_basic_tx, usrp_standard_common
-{
- public:
- enum coarse_mod_t {
- CM_NEG_FDAC_OVER_4, // -32 MHz
- CM_NEG_FDAC_OVER_8, // -16 MHz
- CM_OFF,
- CM_POS_FDAC_OVER_8, // +16 MHz
- CM_POS_FDAC_OVER_4 // +32 MHz
- };
-
- protected:
- static const int MAX_CHAN = 2;
- unsigned int d_interp_rate;
- int d_nchan;
- int d_sw_mux;
- int d_hw_mux;
- double d_tx_freq[MAX_CHAN];
- coarse_mod_t d_coarse_mod[MAX_CHAN];
- unsigned char d_tx_modulator_shadow[MAX_CHAN];
-
- virtual bool set_coarse_modulator (int channel, coarse_mod_t cm);
- usrp_standard_tx::coarse_mod_t coarse_modulator (int channel) const;
-
- protected:
- usrp_standard_tx (int which_board,
- unsigned int interp_rate,
- int nchan = 1,
- int mux = -1,
- int fusb_block_size = 0,
- int fusb_nblocks = 0,
- const std::string fpga_filename = "",
- const std::string firmware_filename = ""
- ); // throws if trouble
-
- bool write_hw_mux_reg ();
-
- public:
- ~usrp_standard_tx ();
-
- /*!
- * \brief invokes constructor, returns instance or 0 if trouble
- *
- * \param which_board Which USRP board on usb (not particularly useful; use 0)
- * \param fusb_block_size fast usb xfer block size. Must be a multiple of 512.
- * Use zero for a reasonable default.
- * \param fusb_nblocks number of fast usb URBs to allocate. Use zero for a reasonable default.
- */
- static usrp_standard_tx *make (int which_board,
- unsigned int interp_rate,
- int nchan = 1,
- int mux = -1,
- int fusb_block_size = 0,
- int fusb_nblocks = 0,
- const std::string fpga_filename = "",
- const std::string firmware_filename = ""
- );
-
- /*!
- * \brief Set interpolator rate. \p rate must be in [4, 512] and a multiple of 4.
- *
- * The final complex sample rate across the USB is
- * dac_freq () / interp_rate () * nchannels ()
- */
- virtual bool set_interp_rate (unsigned int rate);
-
- /*!
- * \brief Set number of active channels. \p nchannels must be 1 or 2.
- *
- * The final complex sample rate across the USB is
- * dac_freq () / decim_rate () * nchannels ()
- */
- bool set_nchannels (int nchannels);
-
- /*!
- * \brief Set output mux configuration.
- *
- * <pre>
- * 3 2 1
- * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- * +-------------------------------+-------+-------+-------+-------+
- * | | DAC3 | DAC2 | DAC1 | DAC0 |
- * +-------------------------------+-------+-------+-------+-------+
- *
- * There are two interpolators with complex inputs and outputs.
- * There are four DACs.
- *
- * Each 4-bit DACx field specifies the source for the DAC and
- * whether or not that DAC is enabled. Each subfield is coded
- * like this:
- *
- * 3 2 1 0
- * +-+-----+
- * |E| N |
- * +-+-----+
- *
- * Where E is set if the DAC is enabled, and N specifies which
- * interpolator output is connected to this DAC.
- *
- * N which interp output
- * --- -------------------
- * 0 chan 0 I
- * 1 chan 0 Q
- * 2 chan 1 I
- * 3 chan 1 Q
- * </pre>
- */
- bool set_mux (int mux);
-
- /*!
- * \brief set the frequency of the digital up converter.
- *
- * \p channel must be in the range [0,1]. \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.
- */
- virtual bool set_tx_freq (int channel, double freq); // chan: [0,1]
-
- // ACCESSORS
- unsigned int interp_rate () const;
- double tx_freq (int channel) const;
- int nchannels () const;
- int mux () const;
-
- // called in base class to derived class order
- bool start ();
- bool stop ();
-};
-
-#endif /* INCLUDED_USRP_STANDARD_H */
projects / debian / gnuradio / blobdiff