uhd

//

// Copyright 2010 Ettus Research LLC

//

// This program 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 of the License, or

// (at your option) any later version.

//

// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

//

#ifndef INCLUDED_USRP2_IMPL_HPP

#define INCLUDED_USRP2_IMPL_HPP

#include "usrp2_iface.hpp"

#include "clock_ctrl.hpp"

#include "codec_ctrl.hpp"

#include "serdes_ctrl.hpp"

#include <uhd/device.hpp>

#include <uhd/utils/pimpl.hpp>

#include <uhd/types/dict.hpp>

#include <uhd/types/otw_type.hpp>

#include <uhd/types/stream_cmd.hpp>

#include <uhd/types/clock_config.hpp>

#include <uhd/usrp/dboard_eeprom.hpp>

#include <boost/shared_ptr.hpp>

#include <boost/function.hpp>

#include <uhd/transport/vrt_if_packet.hpp>

#include <uhd/transport/udp_simple.hpp> //mtu

#include <uhd/transport/zero_copy.hpp>

#include <uhd/usrp/dboard_manager.hpp>

#include <uhd/usrp/subdev_spec.hpp>

/*!

 * Make a usrp2 dboard interface.

 * \param iface the usrp2 interface object

 * \param clk_ctrl the clock control object

 * \return a sptr to a new dboard interface

 */

uhd::usrp::dboard_iface::sptr make_usrp2_dboard_iface(

    usrp2_iface::sptr iface,

    usrp2_clock_ctrl::sptr clk_ctrl

);

/*!

 * Simple wax obj proxy class:

 * Provides a wax obj interface for a set and a get function.

 * This allows us to create nested properties structures

 * while maintaining flattened code within the implementation.

 */

class wax_obj_proxy : public wax::obj{

public:

    typedef boost::function<void(const wax::obj &, wax::obj &)>       get_t;

    typedef boost::function<void(const wax::obj &, const wax::obj &)> set_t;

    typedef boost::shared_ptr<wax_obj_proxy> sptr;

    static sptr make(const get_t &get, const set_t &set){

        return sptr(new wax_obj_proxy(get, set));

    }

private:

    get_t _get; set_t _set;

    wax_obj_proxy(const get_t &get, const set_t &set): _get(get), _set(set){};

    void get(const wax::obj &key, wax::obj &val){return _get(key, val);}

    void set(const wax::obj &key, const wax::obj &val){return _set(key, val);}

};

/*!

 * USRP2 mboard implementation guts:

 * The implementation details are encapsulated here.

 * Handles properties on the mboard, dboard, dsps...

 */

class usrp2_mboard_impl : public wax::obj{

public:

    typedef boost::shared_ptr<usrp2_mboard_impl> sptr;

    //structors

    usrp2_mboard_impl(

        size_t index,

        uhd::transport::udp_simple::sptr,

        size_t recv_samps_per_packet,

        size_t send_bytes_per_packet,

        const uhd::device_addr_t &flow_control_hints

    );

    ~usrp2_mboard_impl(void);

    inline double get_master_clock_freq(void){

        return _clock_ctrl->get_master_clock_rate();

    }

private:

    size_t _index;

    int _rev_hi, _rev_lo;

    const size_t _recv_samps_per_packet;

    //properties for this mboard

    void get(const wax::obj &, wax::obj &);

    void set(const wax::obj &, const wax::obj &);

    uhd::usrp::subdev_spec_t _rx_subdev_spec, _tx_subdev_spec;

    //interfaces

    usrp2_iface::sptr _iface;

    usrp2_clock_ctrl::sptr _clock_ctrl;

    usrp2_codec_ctrl::sptr _codec_ctrl;

    usrp2_serdes_ctrl::sptr _serdes_ctrl;

    //rx and tx dboard methods and objects

    uhd::usrp::dboard_manager::sptr _dboard_manager;

    uhd::usrp::dboard_iface::sptr _dboard_iface;

    void dboard_init(void);

    //methods and shadows for clock configuration

    uhd::clock_config_t _clock_config;

    void init_clock_config(void);

    void update_clock_config(void);

    void set_time_spec(const uhd::time_spec_t &time_spec, bool now);

    //properties interface for the codec

    void codec_init(void);

    void rx_codec_get(const wax::obj &, wax::obj &);

    void rx_codec_set(const wax::obj &, const wax::obj &);

    void tx_codec_get(const wax::obj &, wax::obj &);

    void tx_codec_set(const wax::obj &, const wax::obj &);

    wax_obj_proxy::sptr _rx_codec_proxy;

    wax_obj_proxy::sptr _tx_codec_proxy;

    //properties interface for rx dboard

    void rx_dboard_get(const wax::obj &, wax::obj &);

    void rx_dboard_set(const wax::obj &, const wax::obj &);

    wax_obj_proxy::sptr _rx_dboard_proxy;

    uhd::usrp::dboard_eeprom_t _rx_db_eeprom;

    //properties interface for tx dboard

    void tx_dboard_get(const wax::obj &, wax::obj &);

    void tx_dboard_set(const wax::obj &, const wax::obj &);

    wax_obj_proxy::sptr _tx_dboard_proxy;

    uhd::usrp::dboard_eeprom_t _tx_db_eeprom;

    //methods and shadows for the ddc dsp

    std::vector<size_t> _allowed_decim_and_interp_rates;

    size_t _ddc_decim;

    double _ddc_freq;

    void init_ddc_config(void);

    void issue_ddc_stream_cmd(const uhd::stream_cmd_t &stream_cmd);

    //methods and shadows for the duc dsp

    size_t _duc_interp;

    double _duc_freq;

    void init_duc_config(void);

    //properties interface for ddc

    void ddc_get(const wax::obj &, wax::obj &);

    void ddc_set(const wax::obj &, const wax::obj &);

    wax_obj_proxy::sptr _rx_dsp_proxy;

    //properties interface for duc

    void duc_get(const wax::obj &, wax::obj &);

    void duc_set(const wax::obj &, const wax::obj &);

    wax_obj_proxy::sptr _tx_dsp_proxy;

};

/*!

 * USRP2 implementation guts:

 * The implementation details are encapsulated here.

 * Handles device properties and streaming...

 */

class usrp2_impl : public uhd::device{

public:

    static const size_t sram_bytes = size_t(1 << 20);

    /*!

     * Create a new usrp2 impl base.

     * \param ctrl_transports the udp transports for control

     * \param data_transports the udp transports for data

     * \param flow_control_hints optional flow control params

     */

    usrp2_impl(

        std::vector<uhd::transport::udp_simple::sptr> ctrl_transports,

        std::vector<uhd::transport::zero_copy_if::sptr> data_transports,

        const uhd::device_addr_t &flow_control_hints

    );

    ~usrp2_impl(void);

    //the io interface

    size_t send(

        const std::vector<const void *> &, size_t,

        const uhd::tx_metadata_t &, const uhd::io_type_t &,

        uhd::device::send_mode_t, double

    );

    size_t recv(

        const std::vector<void *> &, size_t,

        uhd::rx_metadata_t &, const uhd::io_type_t &,

        uhd::device::recv_mode_t, double

    );

    size_t get_max_send_samps_per_packet(void) const;

    size_t get_max_recv_samps_per_packet(void) const;

    bool recv_async_msg(uhd::async_metadata_t &, double);

private:

    //device properties interface

    void get(const wax::obj &, wax::obj &);

    void set(const wax::obj &, const wax::obj &);

    //pointers to mboards on this device (think mimo setup)

    std::vector<usrp2_mboard_impl::sptr> _mboards;

    uhd::dict<std::string, usrp2_mboard_impl::sptr> _mboard_dict;

    //io impl methods and members

    std::vector<uhd::transport::zero_copy_if::sptr> _data_transports;

    uhd::otw_type_t _rx_otw_type, _tx_otw_type;

    UHD_PIMPL_DECL(io_impl) _io_impl;

    void io_init(void);

};

#endif /* INCLUDED_USRP2_IMPL_HPP */