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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_e100_impl.hpp"
#include "usrp_e100_regs.hpp"
#include <uhd/usrp/device_props.hpp>
#include <uhd/usrp/mboard_props.hpp>
#include <uhd/utils/assert.hpp>
#include <uhd/utils/static.hpp>
#include <uhd/utils/images.hpp>
#include <boost/format.hpp>
#include <boost/filesystem.hpp>
#include <boost/functional/hash.hpp>
#include <iostream>
#include <fstream>
using namespace uhd;
using namespace uhd::usrp;
namespace fs = boost::filesystem;
/***********************************************************************
* Helper Functions
**********************************************************************/
static std::string abs_path(const std::string &file_path){
return fs::system_complete(fs::path(file_path)).file_string();
}
/***********************************************************************
* Discovery
**********************************************************************/
static device_addrs_t usrp_e100_find(const device_addr_t &hint){
device_addrs_t usrp_e100_addrs;
//return an empty list of addresses when type is set to non-usrp-e
if (hint.has_key("type") and hint["type"] != "usrp-e") return usrp_e100_addrs;
//device node not provided, assume its 0
if (not hint.has_key("node")){
device_addr_t new_addr = hint;
new_addr["node"] = "/dev/usrp_e0";
return usrp_e100_find(new_addr);
}
//use the given device node name
if (fs::exists(hint["node"])){
device_addr_t new_addr;
new_addr["type"] = "usrp-e";
new_addr["node"] = abs_path(hint["node"]);
usrp_e100_addrs.push_back(new_addr);
}
return usrp_e100_addrs;
}
/***********************************************************************
* Make
**********************************************************************/
static device::sptr usrp_e100_make(const device_addr_t &device_addr){
//setup the main interface into fpga
std::string node = device_addr["node"];
std::cout << boost::format("Opening USRP-E on %s") % node << std::endl;
usrp_e100_iface::sptr iface = usrp_e100_iface::make(node);
//------------------------------------------------------------------
//-- Handle the FPGA loading...
//-- The image can be confimed as already loaded when:
//-- 1) The compatibility number matches.
//-- 2) The hash in the hash-file matches.
//------------------------------------------------------------------
static const char *hash_file_path = "/tmp/usrp_e100_hash";
//extract the fpga path for usrp-e
std::string usrp_e100_fpga_image = find_image_path(
device_addr.has_key("fpga")? device_addr["fpga"] : "usrp_e100_fpga.bin"
);
//calculate a hash of the fpga file
size_t fpga_hash = 0;
{
std::ifstream file(usrp_e100_fpga_image.c_str());
if (not file.good()) throw std::runtime_error(
"cannot open fpga file for read: " + usrp_e100_fpga_image
);
do{
boost::hash_combine(fpga_hash, file.get());
} while (file.good());
file.close();
}
//read the compatibility number
boost::uint16_t fpga_compat_num = iface->peek16(UE_REG_MISC_COMPAT);
//read the hash in the hash-file
size_t loaded_hash = 0;
try{std::ifstream(hash_file_path) >> loaded_hash;}catch(...){}
//if not loaded: load the fpga image and write the hash-file
if (fpga_compat_num != USRP_E_COMPAT_NUM or loaded_hash != fpga_hash){
iface.reset();
usrp_e100_load_fpga(usrp_e100_fpga_image);
std::cout << boost::format("re-Opening USRP-E on %s") % node << std::endl;
iface = usrp_e100_iface::make(node);
try{std::ofstream(hash_file_path) << fpga_hash;}catch(...){}
}
//check that the compatibility is correct
fpga_compat_num = iface->peek16(UE_REG_MISC_COMPAT);
if (fpga_compat_num != USRP_E_COMPAT_NUM){
throw std::runtime_error(str(boost::format(
"Expected fpga compatibility number 0x%x, but got 0x%x:\n"
"The fpga build is not compatible with the host code build."
) % USRP_E_COMPAT_NUM % fpga_compat_num));
}
return device::sptr(new usrp_e100_impl(iface));
}
UHD_STATIC_BLOCK(register_usrp_e100_device){
device::register_device(&usrp_e100_find, &usrp_e100_make);
}
/***********************************************************************
* Structors
**********************************************************************/
usrp_e100_impl::usrp_e100_impl(usrp_e100_iface::sptr iface): _iface(iface){
//setup interfaces into hardware
_clock_ctrl = usrp_e100_clock_ctrl::make(_iface);
_codec_ctrl = usrp_e100_codec_ctrl::make(_iface);
//initialize the mboard
mboard_init();
//initialize the dboards
dboard_init();
//initialize the dsps
rx_ddc_init();
tx_duc_init();
//init the codec properties
codec_init();
//init the io send/recv
io_init();
//set default subdev specs
this->mboard_set(MBOARD_PROP_RX_SUBDEV_SPEC, subdev_spec_t());
this->mboard_set(MBOARD_PROP_TX_SUBDEV_SPEC, subdev_spec_t());
}
usrp_e100_impl::~usrp_e100_impl(void){
/* NOP */
}
/***********************************************************************
* Device Get
**********************************************************************/
void usrp_e100_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("usrp-e 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 usrp_e100_impl::set(const wax::obj &, const wax::obj &){
UHD_THROW_PROP_SET_ERROR();
}
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