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/>.

//

#include "usrp1_impl.hpp"

#include "usrp1_ctrl.hpp"

#include "fpga_regs_standard.h"

#include "usrp_spi_defs.h"

#include <uhd/transport/usb_control.hpp>

#include <uhd/usrp/device_props.hpp>

#include <uhd/utils/assert.hpp>

#include <uhd/utils/static.hpp>

#include <uhd/utils/images.hpp>

#include <boost/format.hpp>

#include <boost/assign/list_of.hpp>

#include <boost/filesystem.hpp>

#include <boost/thread/thread.hpp>

#include <iostream>

using namespace uhd;

using namespace uhd::usrp;

using namespace uhd::transport;

const boost::uint16_t USRP1_VENDOR_ID  = 0xfffe;

const boost::uint16_t USRP1_PRODUCT_ID = 0x0002;

const boost::uint16_t FX2_VENDOR_ID    = 0x04b4;

const boost::uint16_t FX2_PRODUCT_ID   = 0x8613;

const std::vector<usrp1_impl::dboard_slot_t> usrp1_impl::_dboard_slots = boost::assign::list_of

    (usrp1_impl::DBOARD_SLOT_A)(usrp1_impl::DBOARD_SLOT_B)

;

/***********************************************************************

 * Discovery

 **********************************************************************/

static device_addrs_t usrp1_find(const device_addr_t &hint)

{

    device_addrs_t usrp1_addrs;

    //return an empty list of addresses when type is set to non-usrp1

    if (hint.has_key("type") and hint["type"] != "usrp1") return usrp1_addrs;

    //extract the firmware path for the USRP1

    std::string usrp1_fw_image = find_image_path(

        hint.has_key("fw")? hint["fw"] : "usrp1_fw.ihx"

    );

    std::cout << "USRP1 firmware image: " << usrp1_fw_image << std::endl;

    boost::uint16_t vid = hint.has_key("uninit") ? FX2_VENDOR_ID : USRP1_VENDOR_ID;

    boost::uint16_t pid = hint.has_key("uninit") ? FX2_PRODUCT_ID : USRP1_PRODUCT_ID;

    //see what we got on the USB bus

    std::vector<usb_device_handle::sptr> device_list =

        usb_device_handle::get_device_list(vid, pid);

    if(device_list.size() == 0) return usrp1_addrs; //return nothing if no USRPs found

    //find the usrps and load firmware

    BOOST_FOREACH(usb_device_handle::sptr handle, device_list) {

            usb_control::sptr ctrl_transport = usb_control::make(handle);

            usrp_ctrl::sptr usrp_ctrl = usrp_ctrl::make(ctrl_transport);

            usrp_ctrl->usrp_load_firmware(usrp1_fw_image);

    }

    //get descriptors again with serial number, but using the initialized VID/PID now since we have firmware

    vid = USRP1_VENDOR_ID;

    pid = USRP1_PRODUCT_ID;

    device_list = usb_device_handle::get_device_list(vid, pid);

    BOOST_FOREACH(usb_device_handle::sptr handle, device_list) {

            device_addr_t new_addr;

            new_addr["type"] = "usrp1";

            new_addr["serial"] = handle->get_serial();

            usrp1_addrs.push_back(new_addr);

    }

    return usrp1_addrs;

}

/***********************************************************************

 * Make

 **********************************************************************/

static device::sptr usrp1_make(const device_addr_t &device_addr)

{

    //extract the FPGA path for the USRP1

    std::string usrp1_fpga_image = find_image_path(

        device_addr.has_key("fpga")? device_addr["fpga"] : "usrp1_fpga.rbf"

    );

    std::cout << "USRP1 FPGA image: " << usrp1_fpga_image << std::endl;

    //try to match the given device address with something on the USB bus

    std::vector<usb_device_handle::sptr> device_list =

        usb_device_handle::get_device_list(USRP1_VENDOR_ID, USRP1_PRODUCT_ID);

    //create data and control transports

    usb_zero_copy::sptr data_transport;

    usrp_ctrl::sptr usrp_ctrl;

    BOOST_FOREACH(usb_device_handle::sptr handle, device_list) {

        if (handle->get_serial() == device_addr["serial"]) {

            usb_control::sptr ctrl_transport = usb_control::make(handle);

            usrp_ctrl = usrp_ctrl::make(ctrl_transport);

            usrp_ctrl->usrp_load_fpga(usrp1_fpga_image);

            data_transport = usb_zero_copy::make(handle,        // identifier

                                                 6,             // IN endpoint

                                                 2,             // OUT endpoint

                                                 2 * (1 << 20), // buffer size

                                                 16384);        // transfer size

            break;

        }

    }

    //create the usrp1 implementation guts

    return device::sptr(new usrp1_impl(data_transport, usrp_ctrl));

}

UHD_STATIC_BLOCK(register_usrp1_device){

    device::register_device(&usrp1_find, &usrp1_make);

}

/***********************************************************************

 * Structors

 **********************************************************************/

usrp1_impl::usrp1_impl(uhd::transport::usb_zero_copy::sptr data_transport,

                       usrp_ctrl::sptr ctrl_transport)

 : _data_transport(data_transport), _ctrl_transport(ctrl_transport)

{

    _iface = usrp1_iface::make(ctrl_transport);

    //create clock interface

    _clock_ctrl = usrp1_clock_ctrl::make(_iface);

    //create codec interface

    _codec_ctrls[DBOARD_SLOT_A] = usrp1_codec_ctrl::make(

        _iface, _clock_ctrl, SPI_ENABLE_CODEC_A

    );

    _codec_ctrls[DBOARD_SLOT_B] = usrp1_codec_ctrl::make(

        _iface, _clock_ctrl, SPI_ENABLE_CODEC_B

    );

    //initialize the codecs

    codec_init();

    //initialize the mboard

    mboard_init();

    //initialize the dboards 

    dboard_init();

    //initialize the dsps

    rx_dsp_init();

    //initialize the dsps

    tx_dsp_init();

    //initialize the send/recv

    io_init();

    //turn on the transmitter

    _ctrl_transport->usrp_tx_enable(true);

}

usrp1_impl::~usrp1_impl(void){

    /* NOP */

}

bool usrp1_impl::recv_async_msg(uhd::async_metadata_t &, size_t timeout_ms){

    //dummy fill-in for the recv_async_msg

    boost::this_thread::sleep(boost::posix_time::milliseconds(timeout_ms));

    return false;

}

/***********************************************************************

 * Device Get

 **********************************************************************/

void usrp1_impl::get(const wax::obj &key_, wax::obj &val)

{

    named_prop_t key = named_prop_t::extract(key_);

    //handle the get request conditioned on the key

    switch(key.as<device_prop_t>()){

    case DEVICE_PROP_NAME:

        val = std::string("usrp1 device");

        return;

    case DEVICE_PROP_MBOARD:

        UHD_ASSERT_THROW(key.name == "");

        val = _mboard_proxy->get_link();

        return;

    case DEVICE_PROP_MBOARD_NAMES:

        val = prop_names_t(1, ""); //vector of size 1 with empty string

        return;

    default: UHD_THROW_PROP_GET_ERROR();

    }

}

/***********************************************************************

 * Device Set

 **********************************************************************/

void usrp1_impl::set(const wax::obj &, const wax::obj &)

{

    UHD_THROW_PROP_SET_ERROR();

}