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C++

/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN 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 Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef SRSUE_PROC_SR_H
#define SRSUE_PROC_SR_H
#include "srsran/interfaces/ue_mac_interfaces.h"
#include "srsran/srslog/srslog.h"
#include <mutex>
#include <stdint.h>
/* Scheduling Request procedure as defined in 5.4.4 of 36.321 */
namespace srsue {
class ra_proc;
class phy_interface_mac_lte;
class rrc_interface_mac;
class sr_proc
{
public:
explicit sr_proc(srslog::basic_logger& logger);
void init(ra_proc* ra, phy_interface_mac_lte* phy_h, rrc_interface_mac* rrc);
void step(uint32_t tti);
void set_config(srsran::sr_cfg_t& cfg);
void reset();
void start();
private:
bool need_tx(uint32_t tti);
int sr_counter;
bool is_pending_sr;
srsran::sr_cfg_t sr_cfg;
ra_proc* ra;
rrc_interface_mac* rrc;
phy_interface_mac_lte* phy_h;
srslog::basic_logger& logger;
// Protects access to is_pending_sr, which can be accessed by PHY worker
std::mutex mutex = {};
bool initiated;
};
} // namespace srsue
#endif // SRSUE_PROC_SR_H