mirror of
https://github.com/RangeNetworks/openbts.git
synced 2025-10-22 23:32:00 +00:00
129 lines
3.3 KiB
C++
129 lines
3.3 KiB
C++
/*
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* Copyright 2008, 2009 Free Software Foundation, Inc.
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* Copyright 2014 Range Networks, Inc.
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*
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* This software is distributed under the terms of the GNU Public License.
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* See the COPYING file in the main directory for details.
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*
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* This use of this software may be subject to additional restrictions.
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* See the LEGAL file in the main directory for details.
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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 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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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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <Logger.h>
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#include <Configuration.h>
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#include "RAD1Device.h"
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/* tomr had to add direct path to OpenBTS.db */
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ConfigurationTable gConfig("/etc/OpenBTS/OpenBTS.db");
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using namespace std;
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int main(int argc, char *argv[]) {
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gLogInit("openbts","INFO",LOG_LOCAL7);
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int whichBoard = 0;
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if (argc > 1) whichBoard = atoi(argv[1]);
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//if (argc>2) gSetLogFile(argv[2]);
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RAD1Device *usrp = new RAD1Device(52.0e6/192.0);
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usrp->make(false, 0);
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double freqkHz = 0.0;
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if (argc > 2) freqkHz = (double) atoi(argv[2]);
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TIMESTAMP timestamp;
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if (!usrp->setRxFreq(freqkHz*1.0e3,108)) printf("RX failed!");
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usrp->start();
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/* tomr added default gain value to 53 and 3rd arg for setting an alt value */
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unsigned int rxgain = 53;
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if (argc > 3) {
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rxgain = atoi(argv[3]);
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printf("Updated RxGain = %d\n", rxgain);
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} else
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printf("Deafult RxGain Setting = %d\n", rxgain);
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usrp->setRxGain(rxgain);
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bool movingAverage = false;
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if (argc > 4) {
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movingAverage = (atoi(argv[4])!=0);
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}
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printf("Moving average = %d\n",movingAverage);
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int numOfSamples = -1;
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if (argc > 5) {
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numOfSamples = atoi(argv[5]);
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}
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int currSampleNum = 0;
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bool underrun;
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usrp->updateAlignment(20000);
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usrp->updateAlignment(21000);
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timestamp = 30000;
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double sum = 0.0;
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unsigned long num = 0;
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double rcvCeil = usrp->fullScaleOutputValue()*usrp->fullScaleOutputValue();
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while (1) {
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short readBuf[512*2];
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int rd = usrp->readSamples(readBuf,512,&underrun,timestamp);
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if (rd) {
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LOG(INFO) << "rcvd. data@:" << timestamp;
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for (int i = 0; i < 512; i++) {
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uint32_t *wordPtr = (uint32_t *) &readBuf[2*i];
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*wordPtr = usrp_to_host_u32(*wordPtr);
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//printf ("%llu: %d %d\n", timestamp+i,readBuf[2*i],readBuf[2*i+1]);
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sum += (readBuf[2*i+1]*readBuf[2*i+1] + readBuf[2*i]*readBuf[2*i]);
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num++;
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if (num % 10000 == 0) {
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printf("RSSI: %f\n",10*log10(rcvCeil/(sum/(double) num)));
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usrp->setRxGain(rxgain);
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if (movingAverage) {
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sum = 0;
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num = 0;
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}
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if (numOfSamples > 0) {
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if ((currSampleNum + 1) < numOfSamples) {
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currSampleNum++;
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} else {
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return 0;
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}
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}
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}
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}
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timestamp += rd;
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}
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}
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return 0;
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}
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