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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 "usrp_e_impl.hpp"
#include <uhd/usrp/device_props.hpp>
#include <uhd/utils/assert.hpp>
#include <uhd/utils/static.hpp>
#include <boost/format.hpp>
#include <boost/filesystem.hpp>
#include <fcntl.h> //open
#include <sys/ioctl.h> //ioctl
#include <linux/usrp_e.h>
using namespace uhd;
using namespace uhd::usrp;
namespace fs = boost::filesystem;
UHD_STATIC_BLOCK(register_usrp_e_device){
device::register_device(&usrp_e::find, &usrp_e::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 usrp_e::find(const device_addr_t &device_addr){
device_addrs_t usrp_e_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 usrp_e_addrs;
device_addr_t new_addr;
new_addr["name"] = "USRP-E";
new_addr["node"] = abs_path(device_addr["node"]);
usrp_e_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"] = "USRP-E";
new_addr["node"] = abs_path(node);
usrp_e_addrs.push_back(new_addr);
}
}
return usrp_e_addrs;
}
/***********************************************************************
* Make
**********************************************************************/
device::sptr usrp_e::make(const device_addr_t &device_addr){
return sptr(new usrp_e_impl(device_addr["node"]));
}
/***********************************************************************
* Structors
**********************************************************************/
usrp_e_impl::usrp_e_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();
}
usrp_e_impl::~usrp_e_impl(void){
//close the device node file descriptor
::close(_node_fd);
}
/***********************************************************************
* Misc Methods
**********************************************************************/
void usrp_e_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
));
}
}
void usrp_e_impl::poke32(boost::uint32_t addr, boost::uint32_t value){
//load the data struct
usrp_e_ctl32 data;
data.offset = addr;
data.count = 1;
data.buf[0] = value;
//call the ioctl
this->ioctl(USRP_E_WRITE_CTL32, &data);
}
void usrp_e_impl::poke16(boost::uint32_t addr, boost::uint16_t value){
//load the data struct
usrp_e_ctl16 data;
data.offset = addr;
data.count = 1;
data.buf[0] = value;
//call the ioctl
this->ioctl(USRP_E_WRITE_CTL16, &data);
}
boost::uint32_t usrp_e_impl::peek32(boost::uint32_t addr){
//load the data struct
usrp_e_ctl32 data;
data.offset = addr;
data.count = 1;
//call the ioctl
this->ioctl(USRP_E_READ_CTL32, &data);
return data.buf[0];
}
boost::uint16_t usrp_e_impl::peek16(boost::uint32_t addr){
//load the data struct
usrp_e_ctl16 data;
data.offset = addr;
data.count = 1;
//call the ioctl
this->ioctl(USRP_E_READ_CTL16, &data);
return data.buf[0];
}
/***********************************************************************
* Device Get
**********************************************************************/
void usrp_e_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("usrp-e 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 usrp_e_impl::set(const wax::obj &, const wax::obj &){
throw std::runtime_error("Cannot set in usrp-e device");
}
/***********************************************************************
* Device IO (TODO)
**********************************************************************/
size_t usrp_e_impl::send(
const boost::asio::const_buffer &,
const uhd::tx_metadata_t &,
const io_type_t &
){
if (true){
throw std::runtime_error(str(boost::format("usrp-e send: cannot handle type \"%s\"") % ""));
}
return 0;
}
size_t usrp_e_impl::recv(
const boost::asio::mutable_buffer &,
uhd::rx_metadata_t &,
const io_type_t &
){
if (true){
throw std::runtime_error(str(boost::format("usrp-e recv: cannot handle type \"%s\"") % ""));
}
return 0;
}
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