mirror of https://github.com/PentHertz/srsLTE.git
143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSENB_PRACH_WORKER_H
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#define SRSENB_PRACH_WORKER_H
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#include "srslte/common/block_queue.h"
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#include "srslte/common/buffer_pool.h"
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#include "srslte/common/log.h"
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#include "srslte/common/threads.h"
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#include "srslte/interfaces/enb_interfaces.h"
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// Setting ENABLE_PRACH_GUI to non zero enables a GUI showing signal received in the PRACH window.
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#define ENABLE_PRACH_GUI 0
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#if defined(ENABLE_GUI) and ENABLE_PRACH_GUI
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#include <srsgui/srsgui.h>
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#endif // defined(ENABLE_GUI) and ENABLE_PRACH_GUI
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namespace srsenb {
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class prach_worker : srslte::thread
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{
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public:
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prach_worker(uint32_t cc_idx_) : buffer_pool(8), thread("PRACH_WORKER") { cc_idx = cc_idx_; }
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int init(const srslte_cell_t& cell_,
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const srslte_prach_cfg_t& prach_cfg_,
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stack_interface_phy_lte* mac,
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srslte::log* log_h,
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int priority);
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int new_tti(uint32_t tti, cf_t* buffer);
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void set_max_prach_offset_us(float delay_us);
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void stop();
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private:
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uint32_t cc_idx = 0;
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uint32_t prach_nof_det = 0;
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uint32_t prach_indices[165] = {};
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float prach_offsets[165] = {};
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float prach_p2avg[165] = {};
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srslte_cell_t cell = {};
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srslte_prach_cfg_t prach_cfg = {};
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srslte_prach_t prach = {};
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#if defined(ENABLE_GUI) and ENABLE_PRACH_GUI
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plot_real_t plot_real;
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std::array<float, 3 * SRSLTE_SF_LEN_MAX> plot_buffer;
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#endif // defined(ENABLE_GUI) and ENABLE_PRACH_GUI
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const static int sf_buffer_sz = 128 * 1024;
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class sf_buffer
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{
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public:
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sf_buffer() = default;
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void reset()
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{
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nof_samples = 0;
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tti = 0;
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}
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cf_t samples[sf_buffer_sz] = {};
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uint32_t nof_samples = 0;
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uint32_t tti = 0;
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#ifdef SRSLTE_BUFFER_POOL_LOG_ENABLED
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char debug_name[SRSLTE_BUFFER_POOL_LOG_NAME_LEN];
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#endif /* SRSLTE_BUFFER_POOL_LOG_ENABLED */
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};
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srslte::buffer_pool<sf_buffer> buffer_pool;
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srslte::block_queue<sf_buffer*> pending_buffers;
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sf_buffer* current_buffer = nullptr;
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srslte::log* log_h = nullptr;
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stack_interface_phy_lte* stack = nullptr;
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float max_prach_offset_us = 0.0f;
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bool initiated = false;
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bool running = false;
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uint32_t nof_sf = 0;
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uint32_t sf_cnt = 0;
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void run_thread() final;
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int run_tti(sf_buffer* b);
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};
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class prach_worker_pool
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{
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private:
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std::vector<std::unique_ptr<prach_worker> > prach_vec;
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public:
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prach_worker_pool() = default;
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~prach_worker_pool() = default;
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void init(uint32_t cc_idx,
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const srslte_cell_t& cell_,
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const srslte_prach_cfg_t& prach_cfg_,
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stack_interface_phy_lte* mac,
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srslte::log* log_h,
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int priority)
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{
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// Create PRACH worker if required
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while (cc_idx >= prach_vec.size()) {
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prach_vec.push_back(std::unique_ptr<prach_worker>(new prach_worker(prach_vec.size())));
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}
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prach_vec[cc_idx]->init(cell_, prach_cfg_, mac, log_h, priority);
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}
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void set_max_prach_offset_us(float delay_us)
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{
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for (auto& prach : prach_vec) {
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prach->set_max_prach_offset_us(delay_us);
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}
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}
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void stop()
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{
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for (auto& prach : prach_vec) {
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prach->stop();
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}
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}
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int new_tti(uint32_t cc_idx, uint32_t tti, cf_t* buffer)
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{
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int ret = SRSLTE_ERROR;
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if (cc_idx < prach_vec.size()) {
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ret = prach_vec[cc_idx]->new_tti(tti, buffer);
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}
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return ret;
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}
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};
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} // namespace srsenb
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#endif // SRSENB_PRACH_WORKER_H
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