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			664 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			664 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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* Copyright 2008, 2009, 2014 Free Software Foundation, 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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/*
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	Compilation Flags
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	SWLOOPBACK	compile for software loopback testing
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*/ 
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include "Threads.h"
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#include "RAD1Device.h"
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#include <Logger.h>
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using namespace std;
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unsigned char* write_it(unsigned v, unsigned char *s) {
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  s[0] = (v>>16) & 0x0ff;
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  s[1] = (v>>8) & 0x0ff;
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  s[2] = (v) & 0x0ff;
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  return s;
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}
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const double RAD1Device::LO_OFFSET = 6.0e6;
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const double RAD1Device::masterClockRate = (double) 52.0e6;
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bool RAD1Device::compute_regs(double freq,
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			      unsigned *R,
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			      unsigned *control,
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			      unsigned *N,
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			      double *actual_freq) 
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{
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  if (freq < 1.2e9) {
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	DIV2 = 1;
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	freq_mult = 2;
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	CP1 = 7;
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	CP2 = 7;
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  }
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  else {
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	DIV2 = 0;
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	freq_mult = 1;
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	// This default value matches the RAD1r3.
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	CP1 = 7;
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	// This default value matches the RAD1r3.
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	CP2 = 7;
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  }
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  double phdet_freq = 13.0e6/(double) R_DIV;
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  int desired_n = (int) round(freq*freq_mult/phdet_freq);
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  *actual_freq = desired_n * phdet_freq/freq_mult;
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  float B = floor(desired_n/16);
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  float A = desired_n - 16*B;
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  unsigned B_DIV = int(B);
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  unsigned A_DIV = int(A);
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  //printf("B: %f, A: %f, B_DIV: %u, A_DIV: %u\n",B,A,B_DIV,A_DIV);
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  if (B < A) return false;
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  *R = (R_RSV<<22) | 
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    (BSC << 20) | 
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    (TEST << 19) | 
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    (LDP << 18) | 
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    (ABP << 16) | 
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    (R_DIV << 2);
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  *control = (P<<22) | 
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    (PD<<20) | 
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    (CP2 << 17) | 
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    (CP1 << 14) | 
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    (PL << 12) | 
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    (MTLD << 11) | 
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    (CPG << 10) | 
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    (CP3S << 9) | 
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    (PDP << 8) | 
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    (MUXOUT << 5) | 
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    (CR << 4) | 
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    (PC << 2);
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  *N = (DIVSEL<<23) | 
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    (DIV2<<22) | 
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    (CPGAIN<<21) | 
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    (B_DIV<<8) | 
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    (N_RSV<<7) | 
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    (A_DIV<<2);
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  return true;
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}
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bool RAD1Device::tx_setFreq(double freq, double *actual_freq) 
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{
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  unsigned R, control, N;
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  if (!compute_regs(freq, &R, &control, &N, actual_freq)) return false;
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  if (R==0) return false;
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  unsigned char result[3]; 
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  writeLock.lock();
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  m_uTx->writeSpi(0,SPI_ENABLE_TX_A,SPI_FMT_MSB | SPI_FMT_HDR_0,
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		    write_it((R & ~0x3) | 1, result),3);
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  m_uTx->writeSpi(0,SPI_ENABLE_TX_A,SPI_FMT_MSB | SPI_FMT_HDR_0,
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		    write_it((control & ~0x3) | 0, result),3);
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  usleep(10000);
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  m_uTx->writeSpi(0,SPI_ENABLE_TX_A,SPI_FMT_MSB | SPI_FMT_HDR_0,
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		    write_it((N & ~0x3) | 2,result),3);
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  writeLock.unlock();
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  if (m_uTx->readIO() & PLL_LOCK_DETECT)  return true;
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  if (m_uTx->readIO() & PLL_LOCK_DETECT)  return true;
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  return false;
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}
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bool RAD1Device::rx_setFreq(double freq, double *actual_freq) 
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{
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  unsigned R, control, N;
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  if (!compute_regs(freq, &R, &control, &N, actual_freq)) return false;
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  if (R==0) return false;
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  unsigned char result[3]; 
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  writeLock.lock(); 
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  m_uRx->writeSpi(0,SPI_ENABLE_RX_A,SPI_FMT_MSB | SPI_FMT_HDR_0,
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		    write_it((R & ~0x3) | 1, result), 3);
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  m_uRx->writeSpi(0,SPI_ENABLE_RX_A,SPI_FMT_MSB | SPI_FMT_HDR_0,
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		    write_it((control & ~0x3) | 0, result), 3);
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  usleep(10000);
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  m_uRx->writeSpi(0,SPI_ENABLE_RX_A,SPI_FMT_MSB | SPI_FMT_HDR_0,
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		    write_it((N & ~0x3) | 2, result), 3);
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  writeLock.unlock();
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  usleep(100000); 
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  if (m_uRx->readIO() & PLL_LOCK_DETECT)  return true;
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  if (m_uRx->readIO() & PLL_LOCK_DETECT)  return true;
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  return true; //return false;
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}
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RAD1Device::RAD1Device (double _desiredSampleRate) 
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{
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  LOG(INFO) << "creating RAD1 device...";
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  decimRate = (unsigned int) round(masterClockRate/_desiredSampleRate);
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  actualSampleRate = masterClockRate/decimRate;
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  rxGain = 0;
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  // This default value matches the RAD1r3.
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  PC = 0;    // bits 3,2     Core power 15mA
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#ifdef SWLOOPBACK 
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  samplePeriod = 1.0e6/actualSampleRate;
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  loopbackBufferSize = 0;
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  gettimeofday(&lastReadTime,NULL);
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  firstRead = false;
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#endif
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}
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bool RAD1Device::make(bool wSkipRx, int devID) 
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{
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  skipRx = wSkipRx;
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  writeLock.unlock();
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  LOG(INFO) << "making RAD1 device..";
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#ifndef SWLOOPBACK 
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  string rbf = "fpga.rbf";
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  if (!skipRx) {
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  try {
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    m_uRx = rnrad1Rx::make(devID,decimRate, rbf,"ezusb.ihx");
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    m_uRx->setFpgaMasterClockFreq(masterClockRate);
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  }
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  catch(...) {
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    LOG(ERR) << "make failed on Rx";
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    return false;
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  }
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  if (m_uRx->fpgaMasterClockFreq() != masterClockRate)
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  {
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    LOG(ERR) << "WRONG FPGA clock freq = " << m_uRx->fpgaMasterClockFreq()
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               << ", desired clock freq = " << masterClockRate;
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    return false;
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  }
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  m_uRx->writeOE(0,0xffff);
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  m_uRx->writeOE((POWER_UP|RX_TXN|ENABLE), 0xffff);
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  m_uRx->writeIO((POWER_UP|RX_TXN),(POWER_UP|RX_TXN|ENABLE));
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  // FIXME -- This should be configurable.
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  setRxGain(47); //maxRxGain());
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  }
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  try {
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    m_uTx = rnrad1Tx::make(devID,decimRate*2, rbf,"ezusb.ihx");
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    m_uTx->setFpgaMasterClockFreq(masterClockRate);
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  }
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  catch(...) {
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    LOG(ERR) << "make failed on Tx";
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    return false;
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  }
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  m_uTx->writeOE(0,0xffff);
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  m_uTx->writeOE((POWER_UP|RX_TXN|ENABLE), 0xffff);
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  m_uTx->writeIO((POWER_UP|RX_TXN),(POWER_UP|RX_TXN|ENABLE));
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  if (m_uTx->fpgaMasterClockFreq() != masterClockRate)
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  {
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    LOG(ERR) << "WRONG FPGA clock freq = " << m_uTx->fpgaMasterClockFreq()
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               << ", desired clock freq = " << masterClockRate;
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    return false;
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  }
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#endif
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  samplesRead = 0;
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  samplesWritten = 0;
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  started = false;
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  return true;
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}
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bool RAD1Device::start() 
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{
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  LOG(INFO) << "starting RAD1...";
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#ifndef SWLOOPBACK 
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  if (!m_uRx && !skipRx) return false;
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  if (!m_uTx) return false;
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  writeLock.lock();
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  // power up and configure daughterboards
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  m_uTx->writeOE(0,0xffff);
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  m_uTx->writeOE((POWER_UP|RX_TXN|ENABLE), 0xffff);
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  m_uTx->writeIO((POWER_UP|RX_TXN),(POWER_UP|RX_TXN|ENABLE));
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  //m_uTx->writeIO(0,ENABLE,(RX_TXN | ENABLE));
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  m_uTx->writeIO((RX_TXN | ENABLE), (RX_TXN | ENABLE));//only for litie
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  m_uTx->writeFpgaReg(FR_ATR_MASK_0 ,0);//RX_TXN|ENABLE);
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  m_uTx->writeFpgaReg(FR_ATR_TXVAL_0,0);//,0 |ENABLE);
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  m_uTx->writeFpgaReg(FR_ATR_RXVAL_0,0);//,RX_TXN|0);
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  m_uTx->writeFpgaReg(40,0);
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  m_uTx->writeFpgaReg(42,0);
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  m_uTx->setPga(0,m_uTx->pgaMax()); // should be 20dB
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  m_uTx->setPga(1,m_uTx->pgaMax());
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  m_uTx->setMux(0x00000098);
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  LOG(INFO) << "TX pgas: " << m_uTx->pga(0) << ", " << m_uTx->pga(1);
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  writeLock.unlock();
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  if (!skipRx) {
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    writeLock.lock();
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    m_uRx->writeFpgaReg(FR_ATR_MASK_0  + 1*3,0);
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    m_uRx->writeFpgaReg(FR_ATR_TXVAL_0 + 1*3,0);
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    m_uRx->writeFpgaReg(FR_ATR_RXVAL_0 + 1*3,0);
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    m_uRx->writeFpgaReg(41,0);
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    m_uRx->writeOE((POWER_UP|RX_TXN|ENABLE), 0xffff);
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    m_uRx->writeIO((POWER_UP|RX_TXN|ENABLE),(POWER_UP|RX_TXN|ENABLE));
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    //m_uRx->writeIO(1,0,RX2_RX1N); // using Tx/Rx/
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    m_uRx->writeIO(RX2_RX1N,RX2_RX1N); // using Rx2
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    m_uRx->setAdcBufferBypass(0,true);
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    m_uRx->setAdcBufferBypass(1,true);
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    m_uRx->setPga(0,m_uRx->pgaMax()); // should be 20dB
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    m_uRx->setPga(1,m_uRx->pgaMax());
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    m_uRx->setMux(0x00000010);
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    writeLock.unlock();
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  }
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  data = new short[currDataSize];
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  dataStart = 0;
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  dataEnd = 0;
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  timeStart = 0;
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  timeEnd = 0;
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  timestampOffset = 0;
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  latestWriteTimestamp = 0;
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  lastPktTimestamp = 0;
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  hi32Timestamp = 0;
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  isAligned = false;
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  if (!skipRx) 
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  started = (m_uRx->start() && m_uTx->start());
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  else
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  started = m_uTx->start();
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  return started;
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#else
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  gettimeofday(&lastReadTime,NULL);
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  return true;
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#endif
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}
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bool RAD1Device::stop() 
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{
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#ifndef SWLOOPBACK 
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  if (!m_uRx) return false;
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  if (!m_uTx) return false;
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  // power down
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  m_uTx->writeIO((~POWER_UP|RX_TXN),(POWER_UP|RX_TXN|ENABLE));
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  m_uRx->writeIO(~POWER_UP,(POWER_UP|ENABLE));
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  delete[] currData;
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  started = false;
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  return !started;
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#else
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  return true;
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#endif
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}
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double RAD1Device::setTxGain(double dB) {
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   writeLock.lock();
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   if (dB > maxTxGain()) dB = maxTxGain();
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   if (dB < minTxGain()) dB = minTxGain();
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   m_uTx->setPga(0,dB);
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   m_uTx->setPga(1,dB);
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   //LOG(NOTICE) << "Setting TX PGA to " << dB << " dB.";
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   writeLock.unlock();
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   return dB;
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}
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double RAD1Device::setRxGain(double dB) {
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   writeLock.lock();
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   if (dB > maxRxGain()) dB = maxRxGain();
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   if (dB < minRxGain()) dB = minRxGain();
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   double dBret = dB;
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   dB = dB - minRxGain();
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   double rfMax = 70.0;
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   if (dB > rfMax) {
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        m_uRx->setPga(0,dB-rfMax);
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        m_uRx->setPga(1,dB-rfMax);
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        dB = rfMax;
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   }
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   else {
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        m_uRx->setPga(0,0);
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        m_uRx->setPga(1,0);
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   }
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   m_uRx->writeAuxDac(0,
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        (int) ceil((1.2 + 0.02 - (dB/rfMax))*4096.0/3.3));
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						|
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   LOG(DEBUG) << "Setting DAC voltage to " << (1.2+0.02 - (dB/rfMax)) << " " << (int) ceil((1.2 + 0.02 - (dB/rfMax))*4096.0/3.3);
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   rxGain = dBret;
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 | 
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   writeLock.unlock();
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						|
   
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   return dBret;
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						|
}
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 | 
						|
 | 
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// NOTE: Assumes sequential reads
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						|
int RAD1Device::readSamples(short *buf, int len, bool *overrun, 
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						|
			    TIMESTAMP timestamp,
 | 
						|
			    bool *underrun,
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						|
			    unsigned *RSSI) 
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						|
{
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						|
#ifndef SWLOOPBACK 
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						|
  if (!m_uRx) return 0;
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						|
  
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  timestamp += timestampOffset;
 | 
						|
  
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						|
  if (timestamp + len < timeStart) {
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    memset(buf,0,len*2*sizeof(short));
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    return len;
 | 
						|
  }
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						|
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						|
  if (underrun) *underrun = false;
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						|
 
 | 
						|
  uint32_t readBuf[20000];
 | 
						|
 
 | 
						|
  while (1) {
 | 
						|
    //guestimate USB read size
 | 
						|
    int readLen=0;
 | 
						|
    {
 | 
						|
      int numSamplesNeeded = timestamp + len - timeEnd;
 | 
						|
      if (numSamplesNeeded <=0) break;
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						|
      readLen = 512 * ((int) ceil((float) numSamplesNeeded/126.0));
 | 
						|
      if (readLen > 8000) readLen= (8000/512)*512;
 | 
						|
    }
 | 
						|
    
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						|
    // read USRP packets, parse and save A/D data as needed
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						|
    readLen = m_uRx->read((void *)readBuf,readLen,overrun);
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						|
    for(int pktNum = 0; pktNum < (readLen/512); pktNum++) {
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						|
      // tmpBuf points to start of a USB packet
 | 
						|
      uint32_t* tmpBuf = (uint32_t *) (readBuf+pktNum*512/4);
 | 
						|
      TIMESTAMP pktTimestamp = usrp_to_host_u32(tmpBuf[1]);
 | 
						|
      uint32_t word0 = usrp_to_host_u32(tmpBuf[0]);
 | 
						|
      uint32_t chan = (word0 >> 16) & 0x1f;
 | 
						|
      unsigned payloadSz = word0 & 0x1ff;
 | 
						|
      LOG(DEBUG) << "first two bytes: " << hex << word0 << " " << dec << pktTimestamp;
 | 
						|
 | 
						|
      bool incrementHi32 = ((lastPktTimestamp & 0x0ffffffffll) > pktTimestamp);
 | 
						|
      if (incrementHi32 && (timeStart!=0)) {
 | 
						|
           LOG(DEBUG) << "high 32 increment!!!";
 | 
						|
           hi32Timestamp++;
 | 
						|
      }
 | 
						|
      pktTimestamp = (((TIMESTAMP) hi32Timestamp) << 32) | pktTimestamp;
 | 
						|
      lastPktTimestamp = pktTimestamp;
 | 
						|
 | 
						|
      if (chan == 0x01f) {
 | 
						|
	// control reply, check to see if its ping reply
 | 
						|
        uint32_t word2 = usrp_to_host_u32(tmpBuf[2]);
 | 
						|
	if ((word2 >> 16) == ((0x01 << 8) | 0x02)) {
 | 
						|
          timestamp -= timestampOffset;
 | 
						|
	  timestampOffset = pktTimestamp - pingTimestamp + PINGOFFSET;
 | 
						|
	  LOG(DEBUG) << "updating timestamp offset to: " << timestampOffset;
 | 
						|
          timestamp += timestampOffset;
 | 
						|
	  isAligned = true;
 | 
						|
	}
 | 
						|
	continue;
 | 
						|
      }
 | 
						|
      if (chan != 0) {
 | 
						|
	LOG(DEBUG) << "chan: " << chan << ", timestamp: " << pktTimestamp << ", sz:" << payloadSz;
 | 
						|
	continue;
 | 
						|
      }
 | 
						|
      if ((word0 >> 28) & 0x04) {
 | 
						|
	if (underrun) *underrun = true; 
 | 
						|
	LOG(DEBUG) << "UNDERRUN in TRX->USRP interface";
 | 
						|
      }
 | 
						|
      if (RSSI) *RSSI = (word0 >> 21) & 0x3f;
 | 
						|
      
 | 
						|
      if (!isAligned) continue;
 | 
						|
      
 | 
						|
      unsigned cursorStart = pktTimestamp - timeStart + dataStart;
 | 
						|
      while (cursorStart*2 > currDataSize) {
 | 
						|
	cursorStart -= currDataSize/2;
 | 
						|
      }
 | 
						|
      if (cursorStart*2 + payloadSz/2 > currDataSize) {
 | 
						|
	// need to circle around buffer
 | 
						|
	memcpy(data+cursorStart*2,tmpBuf+2,(currDataSize-cursorStart*2)*sizeof(short));
 | 
						|
	memcpy(data,tmpBuf+2+(currDataSize/2-cursorStart),payloadSz-(currDataSize-cursorStart*2)*sizeof(short));
 | 
						|
      }
 | 
						|
      else {
 | 
						|
	memcpy(data+cursorStart*2,tmpBuf+2,payloadSz);
 | 
						|
      }
 | 
						|
      if (pktTimestamp + payloadSz/2/sizeof(short) > timeEnd) 
 | 
						|
	timeEnd = pktTimestamp+payloadSz/2/sizeof(short);
 | 
						|
 | 
						|
      //LOG(DEBUG) << "timeStart: " << timeStart << ", timeEnd: " << timeEnd << ", pktTimestamp: " << pktTimestamp;
 | 
						|
 | 
						|
    }	
 | 
						|
  }     
 | 
						|
 
 | 
						|
  // copy desired data to buf
 | 
						|
  unsigned bufStart = dataStart+(timestamp-timeStart);
 | 
						|
  if (bufStart + len < currDataSize/2) { 
 | 
						|
    //LOG(DEBUG) << "bufStart: " << bufStart;
 | 
						|
    memcpy(buf,data+bufStart*2,len*2*sizeof(short));
 | 
						|
    memset(data+bufStart*2,0,len*2*sizeof(short));
 | 
						|
  }
 | 
						|
  else {
 | 
						|
    //LOG(DEBUG) << "len: " << len << ", currDataSize/2: " << currDataSize/2 << ", bufStart: " << bufStart;
 | 
						|
    unsigned firstLength = (currDataSize/2-bufStart);
 | 
						|
    //LOG(DEBUG) << "firstLength: " << firstLength;
 | 
						|
    memcpy(buf,data+bufStart*2,firstLength*2*sizeof(short));
 | 
						|
    memset(data+bufStart*2,0,firstLength*2*sizeof(short));
 | 
						|
    memcpy(buf+firstLength*2,data,(len-firstLength)*2*sizeof(short));
 | 
						|
    memset(data,0,(len-firstLength)*2*sizeof(short));
 | 
						|
  }
 | 
						|
  dataStart = (bufStart + len) % (currDataSize/2);
 | 
						|
  timeStart = timestamp + len;
 | 
						|
 | 
						|
  // do IQ swap here
 | 
						|
  for (int i = 0; i < len; i++) {
 | 
						|
    short tmp = usrp_to_host_short(buf[2*i]);
 | 
						|
    buf[2*i] = usrp_to_host_short(buf[2*i+1]);
 | 
						|
    buf[2*i+1] = tmp;
 | 
						|
  } 
 | 
						|
 
 | 
						|
  return len;
 | 
						|
  
 | 
						|
#else
 | 
						|
  if (loopbackBufferSize < 2) return 0;
 | 
						|
  int numSamples = 0;
 | 
						|
  struct timeval currTime;
 | 
						|
  gettimeofday(&currTime,NULL);
 | 
						|
  double timeElapsed = (currTime.tv_sec - lastReadTime.tv_sec)*1.0e6 + 
 | 
						|
    (currTime.tv_usec - lastReadTime.tv_usec);
 | 
						|
  if (timeElapsed < samplePeriod) {return 0;}
 | 
						|
  int numSamplesToRead = (int) floor(timeElapsed/samplePeriod);
 | 
						|
  if (numSamplesToRead < len) return 0;
 | 
						|
  
 | 
						|
  if (numSamplesToRead > len) numSamplesToRead = len;
 | 
						|
  if (numSamplesToRead > loopbackBufferSize/2) {
 | 
						|
    firstRead =false; 
 | 
						|
    numSamplesToRead = loopbackBufferSize/2;
 | 
						|
  }
 | 
						|
  memcpy(buf,loopbackBuffer,sizeof(short)*2*numSamplesToRead);
 | 
						|
  loopbackBufferSize -= 2*numSamplesToRead;
 | 
						|
  memcpy(loopbackBuffer,loopbackBuffer+2*numSamplesToRead,
 | 
						|
	 sizeof(short)*loopbackBufferSize);
 | 
						|
  numSamples = numSamplesToRead;
 | 
						|
  if (firstRead) {
 | 
						|
    int new_usec = lastReadTime.tv_usec + (int) round((double) numSamplesToRead * samplePeriod);
 | 
						|
    lastReadTime.tv_sec = lastReadTime.tv_sec + new_usec/1000000;
 | 
						|
    lastReadTime.tv_usec = new_usec % 1000000;
 | 
						|
  }
 | 
						|
  else {
 | 
						|
    gettimeofday(&lastReadTime,NULL);
 | 
						|
    firstRead = true;
 | 
						|
  }
 | 
						|
  samplesRead += numSamples;
 | 
						|
  
 | 
						|
  return numSamples;
 | 
						|
#endif
 | 
						|
}
 | 
						|
 | 
						|
int RAD1Device::writeSamples(short *buf, int len, bool *underrun, 
 | 
						|
			     unsigned long long timestamp,
 | 
						|
			     bool isControl) 
 | 
						|
{
 | 
						|
  writeLock.lock();
 | 
						|
 | 
						|
#ifndef SWLOOPBACK 
 | 
						|
  if (!m_uTx) return 0;
 | 
						|
 
 | 
						|
  static uint32_t outData[128*200];
 | 
						|
 
 | 
						|
  for (int i = 0; i < len*2; i++) {
 | 
						|
	buf[i] = host_to_usrp_short(buf[i]);
 | 
						|
  }
 | 
						|
 | 
						|
  int numWritten = 0;
 | 
						|
  unsigned isStart = 1;
 | 
						|
  unsigned RSSI = 0;
 | 
						|
  unsigned CHAN = (isControl) ? 0x01f : 0x00;
 | 
						|
  len = len*2*sizeof(short);
 | 
						|
  int numPkts = (int) ceil((float)len/(float)504);
 | 
						|
  unsigned isEnd = (numPkts < 2);
 | 
						|
  uint32_t *outPkt = outData;
 | 
						|
  int pktNum = 0;
 | 
						|
  while (numWritten < len) {
 | 
						|
    // pkt is pointer to start of a USB packet
 | 
						|
    uint32_t *pkt = outPkt + pktNum*128;
 | 
						|
    isEnd = (len - numWritten <= 504);
 | 
						|
    unsigned payloadLen = ((len - numWritten) < 504) ? (len-numWritten) : 504;
 | 
						|
    pkt[0] = (isStart << 12 | isEnd << 11 | (RSSI & 0x3f) << 5 | CHAN) << 16 | payloadLen;
 | 
						|
    pkt[1] = timestamp & 0x0ffffffffll;
 | 
						|
    memcpy(pkt+2,buf+(numWritten/sizeof(short)),payloadLen);
 | 
						|
    numWritten += payloadLen;
 | 
						|
    timestamp += payloadLen/2/sizeof(short);
 | 
						|
    isStart = 0;
 | 
						|
    pkt[0] = host_to_usrp_u32(pkt[0]);
 | 
						|
    pkt[1] = host_to_usrp_u32(pkt[1]);
 | 
						|
    pktNum++;
 | 
						|
  }
 | 
						|
  m_uTx->write((const void*) outPkt,sizeof(uint32_t)*128*numPkts,NULL);
 | 
						|
 | 
						|
  samplesWritten += len/2/sizeof(short);
 | 
						|
  writeLock.unlock();
 | 
						|
 | 
						|
  return len/2/sizeof(short);
 | 
						|
#else
 | 
						|
  int retVal = len;
 | 
						|
  memcpy(loopbackBuffer+loopbackBufferSize,buf,sizeof(short)*2*len);
 | 
						|
  samplesWritten += retVal;
 | 
						|
  loopbackBufferSize += retVal*2;
 | 
						|
   
 | 
						|
  return retVal;
 | 
						|
#endif
 | 
						|
}
 | 
						|
 | 
						|
bool RAD1Device::updateAlignment(TIMESTAMP timestamp) 
 | 
						|
{
 | 
						|
#ifndef SWLOOPBACK 
 | 
						|
  short data[] = {0x00,0x02,0x00,0x00};
 | 
						|
  uint32_t *wordPtr = (uint32_t *) data;
 | 
						|
  bool tmpUnderrun;
 | 
						|
  if (writeSamples((short *) data,1,&tmpUnderrun,timestamp & 0x0ffffffffll,true)) {
 | 
						|
    pingTimestamp = timestamp;
 | 
						|
    return true;
 | 
						|
  }
 | 
						|
  return false;
 | 
						|
#else
 | 
						|
  return true;
 | 
						|
#endif
 | 
						|
}
 | 
						|
 | 
						|
bool RAD1Device::setVCTCXO(unsigned int freq_cal) {
 | 
						|
  m_uRx->writeAuxDac(2,freq_cal << 4);
 | 
						|
  return true;
 | 
						|
}
 | 
						|
 | 
						|
#ifndef SWLOOPBACK 
 | 
						|
bool RAD1Device::setTxFreq(double wFreq, double wAdjFreq) {
 | 
						|
  // Tune to wFreq+LO_OFFSET, to prevent LO bleedthrough from interfering with transmitted signal.
 | 
						|
  double actFreq;
 | 
						|
  unsigned int freq_cal;
 | 
						|
  freq_cal = (unsigned int) round(wAdjFreq); //128+round(wAdjFreq/wFreq*5.4e6);
 | 
						|
  m_uRx->writeAuxDac(2,freq_cal << 4);
 | 
						|
  if (!tx_setFreq(wFreq+1*LO_OFFSET,&actFreq)) return false;
 | 
						|
  bool retVal = m_uTx->setTxFreq(wFreq-actFreq);
 | 
						|
  LOG(DEBUG) << "set TX: " << wFreq-actFreq << " actual TX: " << m_uTx->txFreq();
 | 
						|
  //printf("set TX: %f, set RX: %f\n", wFreq-actFreq, m_uTx->txFreq());
 | 
						|
  //only for litie,set pow to maxim,switch on 1W amp
 | 
						|
  //m_uRx->writeAuxDac(1,0);
 | 
						|
  //m_uRx->writeIO(RX_TXN,RX_TXN);
 | 
						|
 | 
						|
  return retVal;
 | 
						|
};
 | 
						|
 | 
						|
bool RAD1Device::setRxFreq(double wFreq, double wAdjFreq) {
 | 
						|
  // Tune to wFreq-2*LO_OFFSET, to
 | 
						|
  //   1) prevent LO bleedthrough (as with the setTxFreq method above)
 | 
						|
  //   2) The extra LO_OFFSET pushes potential transmitter energy (GSM BS->MS transmissions 
 | 
						|
  //        are 45Mhz above MS->BS transmissions) into a notch of the baseband lowpass filter 
 | 
						|
  //        in front of the ADC.  This possibly gives us an extra 10-20dB Tx/Rx isolation.
 | 
						|
  double actFreq;
 | 
						|
  unsigned int freq_cal;
 | 
						|
  freq_cal = (unsigned int) round(wAdjFreq); //128+round(wAdjFreq/wFreq*5.4e6);
 | 
						|
  m_uRx->writeAuxDac(2,freq_cal << 4);
 | 
						|
  if (!rx_setFreq(wFreq-2*LO_OFFSET,&actFreq)) return false;
 | 
						|
  bool retVal = m_uRx->setRxFreq(wFreq-actFreq);
 | 
						|
  //printf("set RX: %f, actual RX: %f\n",wFreq-actFreq,m_uRx->rxFreq());
 | 
						|
  LOG(DEBUG) << "set RX: " << wFreq-actFreq << " actual RX: " << m_uRx->rxFreq();
 | 
						|
 | 
						|
  return retVal;
 | 
						|
};
 | 
						|
 | 
						|
#else
 | 
						|
bool RAD1Device::setTxFreq(double wFreq) { return true;};
 | 
						|
bool RAD1Device::setRxFreq(double wFreq) { return true;};
 | 
						|
#endif
 | 
						|
 | 
						|
 |