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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsUE library.
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*
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* srsUE 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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* srsUE 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 DEMUX_H
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#define DEMUX_H
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srslte/common/pdu_queue.h"
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#include "srslte/common/log.h"
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#include "srslte/common/timers.h"
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#include "srslte/common/pdu.h"
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/* Logical Channel Demultiplexing and MAC CE dissassemble */
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namespace srsue {
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class demux : public srslte::pdu_queue::process_callback
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{
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public:
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demux();
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void init(phy_interface_mac* phy_h_, rlc_interface_mac *rlc, srslte::log* log_h_, srslte::timers* timers_db_);
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bool process_pdus();
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uint8_t* request_buffer(uint32_t pid, uint32_t len);
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void deallocate(uint8_t* payload_buffer_ptr);
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void push_pdu(uint32_t pid, uint8_t *buff, uint32_t nof_bytes);
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void push_pdu_temp_crnti(uint8_t *buff, uint32_t nof_bytes);
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void set_uecrid_callback(bool (*callback)(void*, uint64_t), void *arg);
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bool get_uecrid_successful();
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void process_pdu(uint8_t *pdu, uint32_t nof_bytes, uint32_t tstamp);
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private:
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const static int NOF_HARQ_PID = 8;
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const static int MAX_PDU_LEN = 150*1024/8; // ~ 150 Mbps
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const static int NOF_BUFFER_PDUS = 64; // Number of PDU buffers per HARQ pid
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uint8_t bcch_buffer[1024]; // BCCH PID has a dedicated buffer
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bool (*uecrid_callback) (void*, uint64_t);
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void *uecrid_callback_arg;
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srslte::sch_pdu mac_msg;
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srslte::sch_pdu pending_mac_msg;
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void process_sch_pdu(srslte::sch_pdu *pdu);
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bool process_ce(srslte::sch_subh *subheader);
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bool is_uecrid_successful;
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phy_interface_mac *phy_h;
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srslte::log *log_h;
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srslte::timers *timers_db;
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rlc_interface_mac *rlc;
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// Buffer of PDUs
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srslte::pdu_queue pdus;
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};
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} // namespace srsue
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#endif // DEMUX_H
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