diff options
Diffstat (limited to 'host/lib/usrp/usrp1e/usrp1e_impl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp1e/usrp1e_impl.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp1e/usrp1e_impl.cpp b/host/lib/usrp/usrp1e/usrp1e_impl.cpp new file mode 100644 index 000000000..8230cc8e4 --- /dev/null +++ b/host/lib/usrp/usrp1e/usrp1e_impl.cpp @@ -0,0 +1,178 @@ +// +// 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; +} |