diff options
Diffstat (limited to 'host/lib/usrp/b100/b100_impl.cpp')
| -rw-r--r-- | host/lib/usrp/b100/b100_impl.cpp | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/host/lib/usrp/b100/b100_impl.cpp b/host/lib/usrp/b100/b100_impl.cpp new file mode 100644 index 000000000..7e733ddd9 --- /dev/null +++ b/host/lib/usrp/b100/b100_impl.cpp @@ -0,0 +1,280 @@ +// +// 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 "b100_impl.hpp" +#include "b100_ctrl.hpp" +#include "fpga_regs_standard.h" +#include "usrp_spi_defs.h" +#include <uhd/transport/usb_control.hpp> +#include "ctrl_packet.hpp" +#include <uhd/usrp/device_props.hpp> +#include <uhd/usrp/mboard_props.hpp> +#include <uhd/utils/msg.hpp> +#include <uhd/exception.hpp> +#include <uhd/utils/static.hpp> +#include <uhd/utils/images.hpp> +#include <uhd/utils/safe_call.hpp> +#include <boost/format.hpp> +#include <boost/assign/list_of.hpp> +#include <boost/filesystem.hpp> +#include <boost/thread/thread.hpp> +#include <boost/lexical_cast.hpp> +#include "b100_regs.hpp" + +using namespace uhd; +using namespace uhd::usrp; +using namespace uhd::transport; + +const boost::uint16_t B100_VENDOR_ID = 0x2500; +const boost::uint16_t B100_PRODUCT_ID = 0x0001; +const boost::uint16_t FX2_VENDOR_ID = 0x04b4; +const boost::uint16_t FX2_PRODUCT_ID = 0x8613; + +/*********************************************************************** + * Discovery + **********************************************************************/ +static device_addrs_t b100_find(const device_addr_t &hint) +{ + device_addrs_t b100_addrs; + + //return an empty list of addresses when type is set to non-b100 + if (hint.has_key("type") and hint["type"] != "b100") return b100_addrs; + + //Return an empty list of addresses when an address is specified, + //since an address is intended for a different, non-USB, device. + if (hint.has_key("addr")) return b100_addrs; + + boost::uint16_t vid = hint.has_key("uninit") ? FX2_VENDOR_ID : B100_VENDOR_ID; + boost::uint16_t pid = hint.has_key("uninit") ? FX2_PRODUCT_ID : B100_PRODUCT_ID; + + // Important note: + // The get device list calls are nested inside the for loop. + // This allows the usb guts to decontruct when not in use, + // so that re-enumeration after fw load can occur successfully. + // This requirement is a courtesy of libusb1.0 on windows. + + //find the usrps and load firmware + BOOST_FOREACH(usb_device_handle::sptr handle, usb_device_handle::get_device_list(vid, pid)) { + //extract the firmware path for the b100 + std::string b100_fw_image; + try{ + b100_fw_image = find_image_path(hint.get("fw", "usrp_b100_fw.ihx")); + } + catch(...){ + UHD_MSG(warning) << boost::format( + "Could not locate B100 firmware.\n" + "Please install the images package.\n" + ); + return b100_addrs; + } + UHD_LOG << "the firmware image: " << b100_fw_image << std::endl; + + usb_control::sptr control; + try{control = usb_control::make(handle);} + catch(const uhd::exception &){continue;} //ignore claimed + + fx2_ctrl::make(control)->usrp_load_firmware(b100_fw_image); + } + + //get descriptors again with serial number, but using the initialized VID/PID now since we have firmware + vid = B100_VENDOR_ID; + pid = B100_PRODUCT_ID; + + BOOST_FOREACH(usb_device_handle::sptr handle, usb_device_handle::get_device_list(vid, pid)) { + device_addr_t new_addr; + new_addr["type"] = "b100"; + + //Attempt to read the name from the EEPROM and perform filtering. + //This operation can throw due to compatibility mismatch. + try{ + usb_control::sptr control = usb_control::make(handle); + b100_iface::sptr iface = b100_iface::make(fx2_ctrl::make(control)); + new_addr["name"] = iface->mb_eeprom["name"]; + new_addr["serial"] = handle->get_serial(); + } + catch(const uhd::exception &){ + //set these values as empty string so the device may still be found + //and the filter's below can still operate on the discovered device + new_addr["name"] = ""; + new_addr["serial"] = ""; + } + + //this is a found b100 when the hint serial and name match or blank + if ( + (not hint.has_key("name") or hint["name"] == new_addr["name"]) and + (not hint.has_key("serial") or hint["serial"] == new_addr["serial"]) + ){ + b100_addrs.push_back(new_addr); + } + } + + return b100_addrs; +} + +/*********************************************************************** + * Make + **********************************************************************/ +static device::sptr b100_make(const device_addr_t &device_addr){ + + //extract the FPGA path for the B100 + std::string b100_fpga_image = find_image_path( + device_addr.has_key("fpga")? device_addr["fpga"] : "usrp_b100_fpga.bin" + ); + + //try to match the given device address with something on the USB bus + std::vector<usb_device_handle::sptr> device_list = + usb_device_handle::get_device_list(B100_VENDOR_ID, B100_PRODUCT_ID); + + //locate the matching handle in the device list + usb_device_handle::sptr handle; + BOOST_FOREACH(usb_device_handle::sptr dev_handle, device_list) { + if (dev_handle->get_serial() == device_addr["serial"]){ + handle = dev_handle; + break; + } + } + UHD_ASSERT_THROW(handle.get() != NULL); //better be found + + //create control objects and a data transport + usb_control::sptr fx2_transport = usb_control::make(handle); + fx2_ctrl::sptr fx2_ctrl = fx2_ctrl::make(fx2_transport); + fx2_ctrl->usrp_load_fpga(b100_fpga_image); + + device_addr_t data_xport_args; + data_xport_args["recv_frame_size"] = device_addr.get("recv_frame_size", "16384"); + data_xport_args["num_recv_frames"] = device_addr.get("num_recv_frames", "16"); + data_xport_args["send_frame_size"] = device_addr.get("send_frame_size", "16384"); + data_xport_args["num_send_frames"] = device_addr.get("num_send_frames", "16"); + + usb_zero_copy::sptr data_transport = usb_zero_copy::make_wrapper( + usb_zero_copy::make( + handle, // identifier + 6, // IN endpoint + 2, // OUT endpoint + data_xport_args // param hints + ) + ); + + //create the control transport + device_addr_t ctrl_xport_args; + ctrl_xport_args["recv_frame_size"] = boost::lexical_cast<std::string>(CTRL_PACKET_LENGTH); + ctrl_xport_args["num_recv_frames"] = "16"; + ctrl_xport_args["send_frame_size"] = boost::lexical_cast<std::string>(CTRL_PACKET_LENGTH); + ctrl_xport_args["num_send_frames"] = "4"; + + usb_zero_copy::sptr ctrl_transport = usb_zero_copy::make( + handle, + 8, + 4, + ctrl_xport_args + ); + + const double master_clock_rate = device_addr.cast<double>("master_clock_rate", 64e6); + + + //create the b100 implementation guts + return device::sptr(new b100_impl(data_transport, ctrl_transport, fx2_ctrl, master_clock_rate)); +} + +UHD_STATIC_BLOCK(register_b100_device){ + device::register_device(&b100_find, &b100_make); +} + +/*********************************************************************** + * Structors + **********************************************************************/ +b100_impl::b100_impl(uhd::transport::usb_zero_copy::sptr data_transport, + uhd::transport::usb_zero_copy::sptr ctrl_transport, + uhd::usrp::fx2_ctrl::sptr fx2_ctrl, + const double master_clock_rate) + : _data_transport(data_transport), _fx2_ctrl(fx2_ctrl) +{ + //this is the handler object for FPGA control packets + _fpga_ctrl = b100_ctrl::make(ctrl_transport); + + _iface = b100_iface::make(_fx2_ctrl, _fpga_ctrl); + + //create clock interface + _clock_ctrl = b100_clock_ctrl::make(_iface, master_clock_rate); + + //create codec interface + _codec_ctrl = b100_codec_ctrl::make(_iface); + + //initialize the codecs + codec_init(); + + //initialize the mboard + mboard_init(); + + //initialize the dboards + dboard_init(); + + //initialize the dsps + rx_ddc_init(); + + //initialize the dsps + tx_duc_init(); + + //init the subdev specs + this->mboard_set(MBOARD_PROP_RX_SUBDEV_SPEC, subdev_spec_t()); + this->mboard_set(MBOARD_PROP_TX_SUBDEV_SPEC, subdev_spec_t()); + + //initialize the send/recv buffs + io_init(); +} + +b100_impl::~b100_impl(void){ + /* NOP */ +} + +bool b100_impl::recv_async_msg(uhd::async_metadata_t &md, double timeout){ + return _fpga_ctrl->recv_async_msg(md, timeout); +} + +/*********************************************************************** + * Device Get + **********************************************************************/ +void b100_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-B100 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 b100_impl::set(const wax::obj &, const wax::obj &) +{ + UHD_THROW_PROP_SET_ERROR(); +} |