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//
// 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/>.
//

#include "usrp2_impl.hpp"
#include "usrp2_regs.hpp"
#include "../dsp_utils.hpp"
#include "../misc_utils.hpp"
#include <uhd/usrp/subdev_props.hpp>
#include <uhd/usrp/dboard_props.hpp>
#include <uhd/utils/assert.hpp>
#include <boost/format.hpp>
#include <boost/bind.hpp>
#include <boost/asio.hpp> //htonl and ntohl
#include <iostream>

using namespace uhd;
using namespace uhd::usrp;

/***********************************************************************
 * Helper Methods
 **********************************************************************/
void usrp2_mboard_impl::dboard_init(void){
    //read the dboard eeprom to extract the dboard ids
    _rx_db_eeprom = dboard_eeprom_t(_iface->read_eeprom(USRP2_I2C_ADDR_RX_DB, 0, dboard_eeprom_t::num_bytes()));
    _tx_db_eeprom = dboard_eeprom_t(_iface->read_eeprom(USRP2_I2C_ADDR_TX_DB, 0, dboard_eeprom_t::num_bytes()));

    //create a new dboard interface and manager
    _dboard_iface = make_usrp2_dboard_iface(_iface, _clock_ctrl);
    _dboard_manager = dboard_manager::make(
        _rx_db_eeprom.id, _tx_db_eeprom.id, _dboard_iface
    );

    //load dboards
    _rx_dboard_proxy = wax_obj_proxy::make(
        boost::bind(&usrp2_mboard_impl::rx_dboard_get, this, _1, _2),
        boost::bind(&usrp2_mboard_impl::rx_dboard_set, this, _1, _2)
    );
    _tx_dboard_proxy = wax_obj_proxy::make(
        boost::bind(&usrp2_mboard_impl::tx_dboard_get, this, _1, _2),
        boost::bind(&usrp2_mboard_impl::tx_dboard_set, this, _1, _2)
    );

    //init the subdevs in use (use the first subdevice)
    rx_dboard_set(DBOARD_PROP_USED_SUBDEVS, prop_names_t(1, _dboard_manager->get_rx_subdev_names().at(0)));
    tx_dboard_set(DBOARD_PROP_USED_SUBDEVS, prop_names_t(1, _dboard_manager->get_tx_subdev_names().at(0)));
}

/***********************************************************************
 * RX DBoard Properties
 **********************************************************************/
void usrp2_mboard_impl::rx_dboard_get(const wax::obj &key_, wax::obj &val){
    wax::obj key; std::string name;
    boost::tie(key, name) = extract_named_prop(key_);

    //handle the get request conditioned on the key
    switch(key.as<dboard_prop_t>()){
    case DBOARD_PROP_NAME:
        val = std::string("usrp2 dboard (rx unit)");
        return;

    case DBOARD_PROP_SUBDEV:
        val = _dboard_manager->get_rx_subdev(name);
        return;

    case DBOARD_PROP_SUBDEV_NAMES:
        val = _dboard_manager->get_rx_subdev_names();
        return;

    case DBOARD_PROP_USED_SUBDEVS:
        val = _rx_subdevs_in_use;
        return;

    case DBOARD_PROP_DBOARD_ID:
        val = _rx_db_eeprom.id;
        return;

    case DBOARD_PROP_DBOARD_IFACE:
        val = _dboard_iface;
        return;

    case DBOARD_PROP_CODEC:
        val = _rx_codec_proxy->get_link();
        return;

    case DBOARD_PROP_GAIN_GROUP:
        val = make_gain_group(
            _dboard_manager->get_rx_subdev(name), _rx_codec_proxy->get_link()
        );
        return;

    default: UHD_THROW_PROP_GET_ERROR();
    }
}

void usrp2_mboard_impl::rx_dboard_set(const wax::obj &key, const wax::obj &val){
    switch(key.as<dboard_prop_t>()){
    case DBOARD_PROP_USED_SUBDEVS:{
            _rx_subdevs_in_use = val.as<prop_names_t>();
            UHD_ASSERT_THROW(_rx_subdevs_in_use.size() == 1);
            wax::obj rx_subdev = _dboard_manager->get_rx_subdev(_rx_subdevs_in_use.at(0));
            std::cout << "Using: " << rx_subdev[SUBDEV_PROP_NAME].as<std::string>() << std::endl;
            _iface->poke32(_iface->regs.dsp_rx_mux, dsp_type1::calc_rx_mux_word(
                rx_subdev[SUBDEV_PROP_CONNECTION].as<subdev_conn_t>()
            ));
        }
        return;

    case DBOARD_PROP_DBOARD_ID:
        _rx_db_eeprom.id = val.as<dboard_id_t>();
        _iface->write_eeprom(USRP2_I2C_ADDR_RX_DB, 0, _rx_db_eeprom.get_eeprom_bytes());
        return;

    default: UHD_THROW_PROP_SET_ERROR();
    }
}

/***********************************************************************
 * TX DBoard Properties
 **********************************************************************/
void usrp2_mboard_impl::tx_dboard_get(const wax::obj &key_, wax::obj &val){
    wax::obj key; std::string name;
    boost::tie(key, name) = extract_named_prop(key_);

    //handle the get request conditioned on the key
    switch(key.as<dboard_prop_t>()){
    case DBOARD_PROP_NAME:
        val = std::string("usrp2 dboard (tx unit)");
        return;

    case DBOARD_PROP_SUBDEV:
        val = _dboard_manager->get_tx_subdev(name);
        return;

    case DBOARD_PROP_SUBDEV_NAMES:
        val = _dboard_manager->get_tx_subdev_names();
        return;

    case DBOARD_PROP_USED_SUBDEVS:
        val = _tx_subdevs_in_use;
        return;

    case DBOARD_PROP_DBOARD_ID:
        val = _tx_db_eeprom.id;
        return;

    case DBOARD_PROP_DBOARD_IFACE:
        val = _dboard_iface;
        return;

    case DBOARD_PROP_CODEC:
        val = _tx_codec_proxy->get_link();
        return;

    case DBOARD_PROP_GAIN_GROUP:
        val = make_gain_group(
            _dboard_manager->get_tx_subdev(name), _tx_codec_proxy->get_link()
        );
        return;

    default: UHD_THROW_PROP_GET_ERROR();
    }
}

void usrp2_mboard_impl::tx_dboard_set(const wax::obj &key, const wax::obj &val){
    switch(key.as<dboard_prop_t>()){
    case DBOARD_PROP_USED_SUBDEVS:{
            _tx_subdevs_in_use = val.as<prop_names_t>();
            UHD_ASSERT_THROW(_tx_subdevs_in_use.size() == 1);
            wax::obj tx_subdev = _dboard_manager->get_tx_subdev(_tx_subdevs_in_use.at(0));
            std::cout << "Using: " << tx_subdev[SUBDEV_PROP_NAME].as<std::string>() << std::endl;
            _iface->poke32(_iface->regs.dsp_tx_mux, dsp_type1::calc_tx_mux_word(
                tx_subdev[SUBDEV_PROP_CONNECTION].as<subdev_conn_t>()
            ));
        }
        return;

    case DBOARD_PROP_DBOARD_ID:
        _tx_db_eeprom.id = val.as<dboard_id_t>();
        _iface->write_eeprom(USRP2_I2C_ADDR_TX_DB, 0, _tx_db_eeprom.get_eeprom_bytes());
        return;

    default: UHD_THROW_PROP_SET_ERROR();
    }
}