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//
// Copyright 2010-2011 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/utils/msg.hpp>
#include <uhd/usrp/device_props.hpp>
#include <uhd/usrp/mboard_props.hpp>
#include <uhd/exception.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 <fstream>
using namespace uhd;
using namespace uhd::usrp;
namespace fs = boost::filesystem;
/***********************************************************************
* 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"] != "e100") 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"] = fs::system_complete(fs::path(hint["node"])).string();
try{
usrp_e100_iface::sptr iface = usrp_e100_iface::make(new_addr["node"]);
new_addr["name"] = iface->mb_eeprom["name"];
new_addr["serial"] = iface->mb_eeprom["serial"];
}
catch(const std::exception &e){
new_addr["name"] = "";
new_addr["serial"] = "";
}
if (
(not hint.has_key("name") or hint["name"] == new_addr["name"]) and
(not hint.has_key("serial") or hint["serial"] == new_addr["serial"])
){
usrp_e100_addrs.push_back(new_addr);
}
}
return usrp_e100_addrs;
}
/***********************************************************************
* Make
**********************************************************************/
static size_t hash_fpga_file(const std::string &file_path){
size_t hash = 0;
std::ifstream file(file_path.c_str());
if (not file.good()) throw uhd::io_error("cannot open fpga file for read: " + file_path);
while (file.good()) boost::hash_combine(hash, file.get());
file.close();
return hash;
}
static device::sptr usrp_e100_make(const device_addr_t &device_addr){
//setup the main interface into fpga
std::string node = device_addr["node"];
UHD_MSG(status) << boost::format("Opening USRP-E on %s") % node << std::endl;
usrp_e100_iface::sptr iface = usrp_e100_iface::make(node);
//extract the fpga path for usrp-e
std::string usrp_e100_fpga_image = find_image_path(device_addr.get("fpga", "usrp_e100_fpga.bin"));
//compute a hash of the fpga file
const boost::uint32_t file_hash = boost::uint32_t(hash_fpga_file(usrp_e100_fpga_image));
//When the hash does not match:
// - unload the iface to free the node
// - load the fpga configuration file
// - re-open the iface on the node
if (iface->peek32(UE_REG_RB_MISC_TEST32) != file_hash){
iface.reset();
usrp_e100_load_fpga(usrp_e100_fpga_image);
sleep(1); ///\todo do this better one day.
UHD_MSG(status) << boost::format("re-Opening USRP-E on %s") % node << std::endl;
iface = usrp_e100_iface::make(node);
}
//store the hash into the FPGA register
iface->poke32(UE_REG_SR_MISC_TEST32, file_hash);
//check that the hash can be readback correctly
if (iface->peek32(UE_REG_RB_MISC_TEST32) != file_hash){
UHD_MSG(error) << boost::format(
"The FPGA hash readback failed!\n"
"The FPGA is either clocked improperly\n"
"or the FPGA build is not compatible.\n"
);
}
//check that the compatibility is correct
const boost::uint16_t fpga_compat_num = iface->peek16(UE_REG_MISC_COMPAT);
if (fpga_compat_num != USRP_E_FPGA_COMPAT_NUM){
throw uhd::runtime_error(str(boost::format(
"\nPlease update the FPGA image for your device.\n"
"See the application notes for USRP E-Series for instructions.\n"
"Expected FPGA compatibility number 0x%x, but got 0x%x:\n"
"The FPGA build is not compatible with the host code build."
) % USRP_E_FPGA_COMPAT_NUM % fpga_compat_num));
}
return device::sptr(new usrp_e100_impl(iface, device_addr));
}
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,
const device_addr_t &device_addr
):
_iface(iface),
_data_xport(usrp_e100_make_mmap_zero_copy(_iface)),
_recv_frame_size(std::min(_data_xport->get_recv_frame_size(), size_t(device_addr.cast<double>("recv_frame_size", 1e9)))),
_send_frame_size(std::min(_data_xport->get_send_frame_size(), size_t(device_addr.cast<double>("send_frame_size", 1e9))))
{
//setup interfaces into hardware
const double master_clock_rate = device_addr.cast<double>("master_clock_rate", 64e6);
_clock_ctrl = usrp_e100_clock_ctrl::make(_iface, master_clock_rate);
_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();
//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());
//init the io send/recv
io_init();
}
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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