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105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
//
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// Copyright 2014 Ettus Research LLC
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// Copyright 2018 Ettus Research, a National Instruments Company
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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//
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#include <uhd/rfnoc/constants.hpp>
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#include <uhd/rfnoc/sink_block_ctrl_base.hpp>
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#include <uhd/utils/log.hpp>
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#include <uhdlib/rfnoc/utils.hpp>
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using namespace uhd;
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using namespace uhd::rfnoc;
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/***********************************************************************
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* Stream signatures
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**********************************************************************/
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stream_sig_t sink_block_ctrl_base::get_input_signature(size_t block_port) const
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{
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if (not _tree->exists(_root_path / "ports" / "in" / block_port)) {
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throw uhd::runtime_error(str(boost::format("Invalid port number %d for block %s")
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% block_port % unique_id()));
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}
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return _resolve_port_def(
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_tree->access<blockdef::port_t>(_root_path / "ports" / "in" / block_port).get());
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}
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std::vector<size_t> sink_block_ctrl_base::get_input_ports() const
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{
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std::vector<size_t> input_ports;
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input_ports.reserve(_tree->list(_root_path / "ports" / "in").size());
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for (const std::string& port : _tree->list(_root_path / "ports" / "in")) {
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input_ports.push_back(boost::lexical_cast<size_t>(port));
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}
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return input_ports;
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}
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/***********************************************************************
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* FPGA Configuration
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**********************************************************************/
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size_t sink_block_ctrl_base::get_fifo_size(size_t block_port) const
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{
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if (_tree->exists(_root_path / "input_buffer_size" / std::to_string(block_port))) {
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return _tree
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->access<size_t>(
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_root_path / "input_buffer_size" / std::to_string(block_port))
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.get();
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}
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return 0;
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}
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size_t sink_block_ctrl_base::get_mtu(size_t block_port) const
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{
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if (_tree->exists(_root_path / "mtu" / std::to_string(block_port))) {
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return _tree->access<size_t>(_root_path / "mtu" / std::to_string(block_port))
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.get();
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}
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return 0;
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}
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void sink_block_ctrl_base::configure_flow_control_in(
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const size_t bytes, const size_t block_port)
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{
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UHD_RFNOC_BLOCK_TRACE()
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<< boost::format("sink_block_ctrl_base::configure_flow_control_in(bytes=%d)")
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% bytes;
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uint32_t bytes_word = 0;
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if (bytes) {
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// Bit 32 enables flow control
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bytes_word = (1 << 31) | bytes;
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}
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sr_write(SR_FLOW_CTRL_BYTES_PER_ACK, bytes_word, block_port);
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}
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void sink_block_ctrl_base::set_error_policy(const std::string& policy)
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{
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if (policy == "next_packet") {
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sr_write(SR_ERROR_POLICY, (1 << 2) | 1);
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} else if (policy == "next_burst") {
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sr_write(SR_ERROR_POLICY, (1 << 3) | 1);
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} else if (policy == "continue") {
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sr_write(SR_ERROR_POLICY, (1 << 1) | 1);
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} else if (policy == "wait") {
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sr_write(SR_ERROR_POLICY, 1);
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} else
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throw uhd::value_error(
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"Block input cannot handle requested error policy: " + policy);
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}
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/***********************************************************************
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* Hooks
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**********************************************************************/
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size_t sink_block_ctrl_base::_request_input_port(
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const size_t suggested_port, const uhd::device_addr_t&) const
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{
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const std::set<size_t> valid_input_ports =
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utils::str_list_to_set<size_t>(_tree->list(_root_path / "ports" / "in"));
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return utils::node_map_find_first_free(
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_upstream_nodes, suggested_port, valid_input_ports);
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}
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// vim: sw=4 et:
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