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/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSENB_PHCH_COMMON_H
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#define SRSENB_PHCH_COMMON_H
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#include "phy_interfaces.h"
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#include "srsenb/hdr/phy/phy_ue_db.h"
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#include "srsran/common/gen_mch_tables.h"
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#include "srsran/common/interfaces_common.h"
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#include "srsran/common/standard_streams.h"
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#include "srsran/common/thread_pool.h"
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#include "srsran/common/threads.h"
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#include "srsran/interfaces/enb_metrics_interface.h"
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#include "srsran/interfaces/radio_interfaces.h"
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#include "srsran/phy/channel/channel.h"
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#include "srsran/radio/radio.h"
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#include <map>
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#include <srsran/common/tti_sempahore.h>
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#include <string.h>
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namespace srsenb {
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class phy_common
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{
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public:
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phy_common() = default;
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bool init(const phy_cell_cfg_list_t& cell_list_,
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const phy_cell_cfg_list_nr_t& cell_list_nr_,
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srsran::radio_interface_phy* radio_handler,
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stack_interface_phy_lte* mac);
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void reset();
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void stop();
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/**
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* TTI transmission semaphore, used for ensuring that PHY workers transmit following start order
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*/
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srsran::tti_semaphore<void*> semaphore;
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/**
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* Performs common end worker transmission tasks such as transmission and stack TTI execution
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*
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* @param tx_sem_id Semaphore identifier, the worker thread pointer is used
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* @param buffer baseband IQ sample buffer
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* @param tx_time timestamp to transmit samples
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* @param is_nr flag is true if it is called from NR
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*/
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void worker_end(void* tx_sem_id, srsran::rf_buffer_t& buffer, srsran::rf_timestamp_t& tx_time, bool is_nr = false);
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// Common objects
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phy_args_t params = {};
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uint32_t get_nof_carriers_lte() { return static_cast<uint32_t>(cell_list_lte.size()); };
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uint32_t get_nof_carriers_nr() { return static_cast<uint32_t>(cell_list_nr.size()); };
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uint32_t get_nof_carriers() { return static_cast<uint32_t>(cell_list_lte.size() + cell_list_nr.size()); };
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uint32_t get_nof_prb(uint32_t cc_idx)
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{
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uint32_t ret = 0;
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if (cc_idx < cell_list_lte.size()) {
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ret = cell_list_lte[cc_idx].cell.nof_prb;
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}
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return ret;
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};
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uint32_t get_nof_ports(uint32_t cc_idx)
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{
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uint32_t ret = 0;
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if (cc_idx < cell_list_lte.size()) {
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ret = cell_list_lte[cc_idx].cell.nof_ports;
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}
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return ret;
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};
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uint32_t get_nof_rf_channels()
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{
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uint32_t count = 0;
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for (auto& cell : cell_list_lte) {
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count += cell.cell.nof_ports;
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}
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for (auto& cell : cell_list_nr) {
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count += cell.carrier.max_mimo_layers;
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}
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return count;
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}
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double get_ul_freq_hz(uint32_t cc_idx)
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{
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double ret = 0.0;
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if (cc_idx < cell_list_lte.size()) {
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ret = cell_list_lte[cc_idx].ul_freq_hz;
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}
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cc_idx -= cell_list_lte.size();
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if (cc_idx < cell_list_nr.size()) {
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ret = cell_list_nr[cc_idx].ul_freq_hz;
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}
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return ret;
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};
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double get_dl_freq_hz(uint32_t cc_idx)
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{
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double ret = 0.0;
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if (cc_idx < cell_list_lte.size()) {
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ret = cell_list_lte[cc_idx].dl_freq_hz;
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}
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cc_idx -= cell_list_lte.size();
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if (cc_idx < cell_list_nr.size()) {
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ret = cell_list_nr[cc_idx].dl_freq_hz;
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}
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return ret;
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};
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uint32_t get_rf_port(uint32_t cc_idx)
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{
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uint32_t ret = 0;
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if (cc_idx < cell_list_lte.size()) {
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ret = cell_list_lte[cc_idx].rf_port;
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}
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cc_idx -= cell_list_lte.size();
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if (cc_idx < cell_list_nr.size()) {
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ret = cell_list_nr[cc_idx].rf_port;
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}
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return ret;
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};
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srsran_cell_t get_cell(uint32_t cc_idx)
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{
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srsran_cell_t c = {};
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if (cc_idx < cell_list_lte.size()) {
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c = cell_list_lte[cc_idx].cell;
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}
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return c;
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};
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srsran_carrier_nr_t get_cell_nr(uint32_t cc_idx)
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{
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srsran_carrier_nr_t c = {};
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if (cc_idx < cell_list_nr.size()) {
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c = cell_list_nr[cc_idx].carrier;
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}
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return c;
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};
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void set_cell_gain(uint32_t cell_id, float gain_db)
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{
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// Find LTE cell
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auto it_lte = std::find_if(
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cell_list_lte.begin(), cell_list_lte.end(), [cell_id](phy_cell_cfg_t& x) { return x.cell_id == cell_id; });
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// Check if the lte cell was found;
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if (it_lte != cell_list_lte.end()) {
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it_lte->gain_db = gain_db;
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return;
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}
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// Find NR cell
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auto it_nr = std::find_if(
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cell_list_nr.begin(), cell_list_nr.end(), [cell_id](phy_cell_cfg_nr_t& x) { return x.cell_id == cell_id; });
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// Check if the nr cell was found;
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if (it_nr != cell_list_nr.end()) {
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it_nr->gain_db = gain_db;
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return;
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}
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srsran::console("cell ID %d not found\n", cell_id);
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}
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float get_cell_gain(uint32_t cc_idx)
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{
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if (cc_idx < cell_list_lte.size()) {
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return cell_list_lte.at(cc_idx).gain_db;
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}
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cc_idx -= cell_list_lte.size();
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if (cc_idx < cell_list_nr.size()) {
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return cell_list_nr.at(cc_idx).gain_db;
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}
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return 0.0f;
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}
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// Common Physical Uplink DMRS configuration
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srsran_refsignal_dmrs_pusch_cfg_t dmrs_pusch_cfg = {};
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srsran::radio_interface_phy* radio = nullptr;
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stack_interface_phy_lte* stack = nullptr;
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srsran::channel_ptr dl_channel = nullptr;
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/**
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* UE Database object, direct public access, all PHY threads should be able to access this attribute directly
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*/
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phy_ue_db ue_db;
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void configure_mbsfn(srsran::phy_cfg_mbsfn_t* cfg);
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void build_mch_table();
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void build_mcch_table();
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bool is_mbsfn_sf(srsran_mbsfn_cfg_t* cfg, uint32_t phy_tti);
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void set_mch_period_stop(uint32_t stop);
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// Getters and setters for ul grants which need to be shared between workers
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const stack_interface_phy_lte::ul_sched_list_t& get_ul_grants(uint32_t tti);
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void set_ul_grants(uint32_t tti, const stack_interface_phy_lte::ul_sched_list_t& ul_grants);
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void clear_grants(uint16_t rnti);
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private:
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// Common objects for scheduling grants
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srsran::circular_array<stack_interface_phy_lte::ul_sched_list_t, TTIMOD_SZ> ul_grants = {};
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std::mutex grant_mutex = {};
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phy_cell_cfg_list_t cell_list_lte;
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phy_cell_cfg_list_nr_t cell_list_nr;
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bool have_mtch_stop = false;
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pthread_mutex_t mtch_mutex = {};
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pthread_cond_t mtch_cvar = {};
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srsran::phy_cfg_mbsfn_t mbsfn = {};
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bool sib13_configured = false;
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bool mcch_configured = false;
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uint8_t mch_table[40] = {};
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uint8_t mcch_table[10] = {};
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uint32_t mch_period_stop = 0;
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bool is_mch_subframe(srsran_mbsfn_cfg_t* cfg, uint32_t phy_tti);
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bool is_mcch_subframe(srsran_mbsfn_cfg_t* cfg, uint32_t phy_tti);
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srsran::rf_buffer_t nr_tx_buffer;
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bool nr_tx_buffer_ready = false;
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};
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} // namespace srsenb
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#endif // SRSENB_PHCH_COMMON_H
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