189 lines
4.8 KiB
C++
189 lines
4.8 KiB
C++
/*
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* Copyright 2022 sysmocom - s.f.m.c. GmbH
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*
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* Author: Eric Wild <ewild@sysmocom.de>
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*
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* SPDX-License-Identifier: AGPL-3.0+
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*
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* This program 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 published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* See the COPYING file in the main directory for details.
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*/
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#pragma once
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "radioDevice.h"
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#include "smpl_buf.h"
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extern "C" {
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#include <osmocom/gsm/gsm_utils.h>
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}
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#include <bladerf.h>
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enum class blade_dev_type { BLADE1, BLADE2 };
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struct dev_band_desc {
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/* Maximum UHD Tx Gain which can be set/used without distorting the
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output signal, and the resulting real output power measured when that
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gain is used. Correct measured values only provided for B210 so far. */
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double nom_uhd_tx_gain; /* dB */
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double nom_out_tx_power; /* dBm */
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/* Factor used to infer base real RSSI offset on the Rx path based on current
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configured RxGain. The resulting rssiOffset is added to the per burst
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calculated energy in upper layers. These values were empirically
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found and may change based on multiple factors, see OS#4468.
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rssiOffset = rxGain + rxgain2rssioffset_rel;
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*/
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double rxgain2rssioffset_rel; /* dB */
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};
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class blade_device : public RadioDevice {
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public:
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blade_device(size_t tx_sps, size_t rx_sps, InterfaceType type, size_t chan_num, double offset,
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const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths);
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~blade_device();
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int open(const std::string &args, int ref, bool swap_channels);
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bool start();
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bool stop();
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bool restart();
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enum TxWindowType getWindowType()
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{
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return tx_window;
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}
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int readSamples(std::vector<short *> &bufs, int len, bool *overrun, TIMESTAMP timestamp, bool *underrun);
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int writeSamples(std::vector<short *> &bufs, int len, bool *underrun, TIMESTAMP timestamp);
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bool updateAlignment(TIMESTAMP timestamp);
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bool setTxFreq(double wFreq, size_t chan);
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bool setRxFreq(double wFreq, size_t chan);
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TIMESTAMP initialWriteTimestamp();
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TIMESTAMP initialReadTimestamp();
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double fullScaleInputValue();
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double fullScaleOutputValue();
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double setRxGain(double db, size_t chan);
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double getRxGain(size_t chan);
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double maxRxGain(void)
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{
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return rx_gain_max;
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}
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double minRxGain(void)
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{
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return rx_gain_min;
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}
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double rssiOffset(size_t chan);
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double setPowerAttenuation(int atten, size_t chan);
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double getPowerAttenuation(size_t chan = 0);
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int getNominalTxPower(size_t chan = 0);
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double getTxFreq(size_t chan);
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double getRxFreq(size_t chan);
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double getRxFreq();
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bool setRxAntenna(const std::string &ant, size_t chan)
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{
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return {};
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};
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std::string getRxAntenna(size_t chan)
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{
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return {};
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};
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bool setTxAntenna(const std::string &ant, size_t chan)
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{
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return {};
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};
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std::string getTxAntenna(size_t chan)
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{
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return {};
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};
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bool requiresRadioAlign();
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GSM::Time minLatency();
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inline double getSampleRate()
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{
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return tx_rate;
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}
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/** Receive and process asynchronous message
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@return true if message received or false on timeout or error
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*/
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bool recv_async_msg();
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enum err_code {
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ERROR_TIMING = -1,
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ERROR_TIMEOUT = -2,
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ERROR_UNRECOVERABLE = -3,
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ERROR_UNHANDLED = -4,
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};
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protected:
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struct bladerf *dev;
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void *usrp_dev;
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enum TxWindowType tx_window;
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enum blade_dev_type dev_type;
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double tx_rate, rx_rate;
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double rx_gain_min, rx_gain_max;
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std::vector<double> tx_gains, rx_gains;
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std::vector<double> tx_freqs, rx_freqs;
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bool band_ass_curr_sess; /* true if "band" was set after last POWEROFF */
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enum gsm_band band;
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struct dev_band_desc band_desc;
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size_t tx_spp, rx_spp;
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bool started;
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bool aligned;
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size_t drop_cnt;
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uint64_t prev_ts;
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TIMESTAMP ts_initial, ts_offset;
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std::vector<smpl_buf *> rx_buffers;
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/* Sample buffers used to receive samples: */
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std::vector<std::vector<short> > pkt_bufs;
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/* Used to call UHD API: Buffer pointer of each elem in pkt_ptrs will
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point to corresponding buffer of vector pkt_bufs. */
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std::vector<short *> pkt_ptrs;
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void init_gains();
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void set_channels(bool swap);
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void set_rates();
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bool flush_recv(size_t num_pkts);
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bool set_freq(double freq, size_t chan, bool tx);
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void get_dev_band_desc(dev_band_desc &desc);
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bool set_band(enum gsm_band req_band);
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void assign_band_desc(enum gsm_band req_band);
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Thread *async_event_thrd;
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Mutex tune_lock;
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};
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