mirror of https://github.com/PentHertz/srsLTE.git
115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2020 Software Radio Systems Limited
|
|
*
|
|
* By using this file, you agree to the terms and conditions set
|
|
* forth in the LICENSE file which can be found at the top level of
|
|
* the distribution.
|
|
*
|
|
*/
|
|
|
|
#ifndef SRSUE_PROC_BSR_H
|
|
#define SRSUE_PROC_BSR_H
|
|
|
|
#include <map>
|
|
#include <stdint.h>
|
|
|
|
#include "proc_sr.h"
|
|
#include "srslte/common/logmap.h"
|
|
#include "srslte/common/task_scheduler.h"
|
|
#include "srslte/srslog/srslog.h"
|
|
|
|
/* Buffer status report procedure */
|
|
|
|
namespace srsue {
|
|
|
|
class rlc_interface_mac;
|
|
|
|
// BSR interface for MUX
|
|
class bsr_interface_mux
|
|
{
|
|
public:
|
|
typedef enum { LONG_BSR, SHORT_BSR, TRUNC_BSR } bsr_format_t;
|
|
|
|
typedef struct {
|
|
bsr_format_t format;
|
|
uint32_t buff_size[4];
|
|
} bsr_t;
|
|
|
|
/* MUX calls BSR to check if it should send (and can fit) a BSR into PDU */
|
|
virtual bool need_to_send_bsr_on_ul_grant(uint32_t grant_size, uint32_t total_data, bsr_t* bsr) = 0;
|
|
|
|
/* MUX calls BSR to let it generate a padding BSR if there is space in PDU */
|
|
virtual bool generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t* bsr) = 0;
|
|
|
|
/* MUX calls BSR to update buffer state of each LCG after all PDUs for this TTI have been packed */
|
|
virtual void update_bsr_tti_end(const bsr_t* bsr) = 0;
|
|
};
|
|
|
|
class bsr_proc : public srslte::timer_callback, public bsr_interface_mux
|
|
{
|
|
public:
|
|
explicit bsr_proc(srslog::basic_logger& logger) : logger(logger) {}
|
|
void init(sr_proc* sr_proc, rlc_interface_mac* rlc, srslte::ext_task_sched_handle* task_sched_);
|
|
void step(uint32_t tti);
|
|
void reset();
|
|
void set_config(srslte::bsr_cfg_t& bsr_cfg);
|
|
|
|
void setup_lcid(uint32_t lcid, uint32_t lcg, uint32_t priority);
|
|
void timer_expired(uint32_t timer_id);
|
|
uint32_t get_buffer_state();
|
|
bool need_to_send_bsr_on_ul_grant(uint32_t grant_size, uint32_t total_data, bsr_t* bsr);
|
|
bool generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t* bsr);
|
|
void update_bsr_tti_end(const bsr_t* bsr);
|
|
|
|
private:
|
|
const static int QUEUE_STATUS_PERIOD_MS = 1000;
|
|
|
|
std::mutex mutex;
|
|
|
|
srslte::ext_task_sched_handle* task_sched = nullptr;
|
|
srslog::basic_logger& logger;
|
|
rlc_interface_mac* rlc = nullptr;
|
|
sr_proc* sr = nullptr;
|
|
|
|
srslte::bsr_cfg_t bsr_cfg;
|
|
|
|
bool initiated = false;
|
|
|
|
const static int NOF_LCG = 4;
|
|
|
|
typedef struct {
|
|
int priority;
|
|
uint32_t old_buffer;
|
|
uint32_t new_buffer;
|
|
} lcid_t;
|
|
|
|
std::map<uint32_t, lcid_t> lcgs[NOF_LCG]; // groups LCID in LCG
|
|
|
|
uint32_t find_max_priority_lcg_with_data();
|
|
typedef enum { NONE, REGULAR, PADDING, PERIODIC } triggered_bsr_type_t;
|
|
triggered_bsr_type_t triggered_bsr_type = NONE;
|
|
|
|
void print_state();
|
|
void set_trigger(triggered_bsr_type_t new_trigger);
|
|
void update_new_data();
|
|
void update_old_buffer();
|
|
bool check_highest_channel();
|
|
bool check_new_data();
|
|
bool check_any_channel();
|
|
uint32_t get_buffer_state_lcg(uint32_t lcg);
|
|
bool generate_bsr(bsr_t* bsr, uint32_t nof_padding_bytes);
|
|
char* bsr_type_tostring(triggered_bsr_type_t type);
|
|
char* bsr_format_tostring(bsr_format_t format);
|
|
|
|
srslte::timer_handler::unique_timer timer_periodic;
|
|
srslte::timer_handler::unique_timer timer_retx;
|
|
srslte::timer_handler::unique_timer timer_queue_status_print;
|
|
};
|
|
|
|
} // namespace srsue
|
|
|
|
#endif // SRSUE_PROC_BSR_H
|