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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 <uhd/utils.hpp>
#include <boost/format.hpp>
#include <boost/filesystem.hpp>
#include "usrp1e_impl.hpp"
#include <fcntl.h> //open
#include <sys/ioctl.h> //ioctl
using namespace uhd;
using namespace uhd::usrp;
namespace fs = boost::filesystem;
STATIC_BLOCK(register_usrp1e_device){
device::register_device(&usrp1e::discover, &usrp1e::make);
}
/***********************************************************************
* Helper Functions
**********************************************************************/
static std::string abs_path(const std::string &file_path){
return fs::system_complete(fs::path(file_path)).file_string();
}
/***********************************************************************
* Discovery
**********************************************************************/
device_addrs_t usrp1e::discover(const device_addr_t &device_addr){
device_addrs_t usrp1e_addrs;
//if a node was provided, use it and only it
if (device_addr.has_key("node")){
if (not fs::exists(device_addr["node"])) return usrp1e_addrs;
device_addr_t new_addr;
new_addr["name"] = "USRP1E";
new_addr["node"] = abs_path(device_addr["node"]);
usrp1e_addrs.push_back(new_addr);
}
//otherwise look for a few nodes at small indexes
else{
for(size_t i = 0; i < 5; i++){
std::string node = str(boost::format("/dev/usrp1_e%d") % i);
if (not fs::exists(node)) continue;
device_addr_t new_addr;
new_addr["name"] = "USRP1E";
new_addr["node"] = abs_path(node);
usrp1e_addrs.push_back(new_addr);
}
}
return usrp1e_addrs;
}
/***********************************************************************
* Make
**********************************************************************/
device::sptr usrp1e::make(const device_addr_t &device_addr){
return sptr(new usrp1e_impl(device_addr["node"]));
}
/***********************************************************************
* Structors
**********************************************************************/
usrp1e_impl::usrp1e_impl(const std::string &node){
//open the device node and check file descriptor
if ((_node_fd = ::open(node.c_str(), O_RDWR)) < 0){
throw std::runtime_error(str(
boost::format("Failed to open %s") % node
));
}
//initialize the mboard
mboard_init();
//initialize the dboards
dboard_init();
//initialize the dsps
rx_ddc_init();
tx_duc_init();
}
usrp1e_impl::~usrp1e_impl(void){
//close the device node file descriptor
::close(_node_fd);
}
/***********************************************************************
* Misc Methods
**********************************************************************/
void usrp1e_impl::ioctl(int request, void *mem){
if (::ioctl(_node_fd, request, mem) < 0){
throw std::runtime_error(str(
boost::format("ioctl failed with request %d") % request
));
}
}
/***********************************************************************
* Device Get
**********************************************************************/
void usrp1e_impl::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<device_prop_t>()){
case DEVICE_PROP_NAME:
val = std::string("usrp1e device");
return;
case DEVICE_PROP_MBOARD:
ASSERT_THROW(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;
case DEVICE_PROP_MAX_RX_SAMPLES:
val = size_t(_max_num_samples);
return;
case DEVICE_PROP_MAX_TX_SAMPLES:
val = size_t(_max_num_samples);
return;
}
}
/***********************************************************************
* Device Set
**********************************************************************/
void usrp1e_impl::set(const wax::obj &, const wax::obj &){
throw std::runtime_error("Cannot set in usrp1e device");
}
/***********************************************************************
* Device IO (TODO)
**********************************************************************/
size_t usrp1e_impl::send(
const boost::asio::const_buffer &,
const uhd::tx_metadata_t &,
const std::string &type
){
if (type != "16sc"){
throw std::runtime_error(str(boost::format("usrp1e send: cannot handle type \"%s\"") % type));
}
return 0;
}
size_t usrp1e_impl::recv(
const boost::asio::mutable_buffer &,
uhd::rx_metadata_t &,
const std::string &type
){
if (type != "16sc"){
throw std::runtime_error(str(boost::format("usrp1e recv: cannot handle type \"%s\"") % type));
}
return 0;
}
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