diff options
Diffstat (limited to 'host/lib/usrp/x300/x300_io_impl.cpp')
| -rw-r--r-- | host/lib/usrp/x300/x300_io_impl.cpp | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/host/lib/usrp/x300/x300_io_impl.cpp b/host/lib/usrp/x300/x300_io_impl.cpp index e3515af0c..329405261 100644 --- a/host/lib/usrp/x300/x300_io_impl.cpp +++ b/host/lib/usrp/x300/x300_io_impl.cpp @@ -106,17 +106,16 @@ void x300_impl::update_subdev_spec(const std::string &tx_rx, const size_t mb_i, chan_to_dsp_map[i] = radio_idx; //extract connection - const std::string conn = _tree->access<std::string>(mb_root / "dboards" / spec[i].db_name / (tx_rx + "_frontends") / spec[i].sd_name / "connection").get(); - + const fs_path fe_path(mb_root / "dboards" / spec[i].db_name / (tx_rx + "_frontends") / spec[i].sd_name); + const std::string conn = _tree->access<std::string>(fe_path / "connection").get(); if (tx_rx == "tx") { //swap condition _mb[mb_i].radio_perifs[radio_idx].tx_fe->set_mux(conn); } else { - //swap condition - const bool fe_swapped = (conn == "QI" or conn == "Q"); - _mb[mb_i].radio_perifs[radio_idx].ddc->set_mux(conn, fe_swapped); - //see usrp/io_impl.cpp if multiple DSPs share the frontend: - _mb[mb_i].radio_perifs[radio_idx].rx_fe->set_mux(fe_swapped); + double if_freq = (_tree->exists(fe_path / "if_freq/value")) ? + _tree->access<double>(fe_path / "if_freq/value").get() : 0.0; + _mb[mb_i].radio_perifs[radio_idx].ddc->set_mux(usrp::fe_connection_t(conn, if_freq)); + _mb[mb_i].radio_perifs[radio_idx].rx_fe->set_mux(false); } } @@ -216,9 +215,10 @@ struct x300_tx_fc_guts_t * FC credit we have is C = F + M - N (i.e. we can send C more packets * before getting another ack). */ -static size_t get_tx_flow_control_window(size_t frame_size, const device_addr_t& tx_args) +static size_t get_tx_flow_control_window(size_t frame_size, const bool dram_buff, const device_addr_t& tx_args) { - double hw_buff_size = tx_args.cast<double>("send_buff_size", X300_TX_HW_BUFF_SIZE); + double default_buff_size = dram_buff ? X300_TX_HW_BUFF_SIZE_DRAM : X300_TX_HW_BUFF_SIZE_SRAM; + double hw_buff_size = tx_args.cast<double>("send_buff_size", default_buff_size); size_t window_in_pkts = (static_cast<size_t>(hw_buff_size) / frame_size); if (window_in_pkts == 0) { throw uhd::value_error("send_buff_size must be larger than the send_frame_size."); @@ -383,8 +383,8 @@ rx_streamer::sptr x300_impl::get_rx_stream(const uhd::stream_args_t &args_) both_xports_t xport = this->make_transport(mb_index, dest, X300_RADIO_DEST_PREFIX_RX, device_addr, data_sid); UHD_LOG << boost::format("data_sid = 0x%08x, actual recv_buff_size = %d\n") % data_sid % xport.recv_buff_size << std::endl; - // To calculate the max number of samples per packet, we assume the maximum header length - // to avoid fragmentation should the entire header be used. + // To calculate the max number of samples per packet, we assume the maximum header length + // to avoid fragmentation should the entire header be used. const size_t bpp = xport.recv->get_recv_frame_size() - X300_RX_MAX_HDR_LEN; // bytes per packet const size_t bpi = convert::get_bytes_per_item(args.otw_format); // bytes per item const size_t spp = unsigned(args.args.cast<double>("spp", bpp/bpi)); // samples per packet @@ -580,8 +580,9 @@ tx_streamer::sptr x300_impl::get_tx_stream(const uhd::stream_args_t &args_) perif.duc->setup(args); //flow control setup - size_t fc_window = get_tx_flow_control_window(xport.send->get_send_frame_size(), device_addr); //In packets - const size_t fc_handle_window = std::max<size_t>(1, fc_window/X300_TX_FC_RESPONSE_FREQ); + size_t fc_window = get_tx_flow_control_window(xport.send->get_send_frame_size(), mb.has_dram_buff, device_addr); //In packets + const size_t fc_handle_window = std::max<size_t>(1, + fc_window/ (mb.has_dram_buff ? X300_TX_FC_RESPONSE_FREQ_DRAM : X300_TX_FC_RESPONSE_FREQ_SRAM)); UHD_LOG << "TX Flow Control Window = " << fc_window << ", TX Flow Control Handler Window = " << fc_handle_window << std::endl; |