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			651 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			651 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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| * Copyright 2008, 2009, 2011 Free Software Foundation, Inc.
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| * Copyright 2011 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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| 
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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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| 
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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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| 
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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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| 
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| 
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| /*
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| 	Compilation Flags
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| 
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| 	SWLOOPBACK	compile for software loopback testing
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| */ 
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| 
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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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| 
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| #include <Logger.h>
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| 
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| 
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| using namespace std;
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| 
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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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| 
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| 
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| const float RAD1Device::LO_OFFSET = 6.0e6;
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| const double RAD1Device::masterClockRate = (double) 52.0e6;
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| 
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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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| 	CP1 = 7;
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| 	CP2 = 7;
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|   }
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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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|   
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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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|   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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| 
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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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|  
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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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|   
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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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| 
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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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| 
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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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|   
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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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| 
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|   return true; //return false;
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| }
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| 
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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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| 
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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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| 
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| bool RAD1Device::make(bool wSkipRx) 
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| {
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|   skipRx = wSkipRx;
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| 
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|   writeLock.unlock();
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| 
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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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|   //string rbf = "inband_1rxhb_1tx.rbf"; 
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|   if (!skipRx) {
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|   try {
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|     m_uRx = rnrad1Rx::make(0,decimRate,
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|                            rbf,"ezusb.ihx");
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|     m_uRx->setFpgaMasterClockFreq(masterClockRate);
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|   }
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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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| 
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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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| 
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| 
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|   }
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| 
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|   try {
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|     m_uTx = rnrad1Tx::make(0,decimRate*2,
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|                            rbf,"ezusb.ihx");
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|     m_uTx->setFpgaMasterClockFreq(masterClockRate);
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|   }
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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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| 
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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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| 
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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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| 
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| #endif
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| 
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|   samplesRead = 0;
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|   samplesWritten = 0;
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|   started = false;
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|   
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|   return true;
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| }
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| 
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| 
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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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|   
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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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| 
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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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|     // FIXME -- This should be configurable.
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|     setRxGain(47); //maxRxGain());
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|   }
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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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| 
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|  
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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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| 
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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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| 
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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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|   
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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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|   
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|   delete[] currData;
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|   
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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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| 
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| double RAD1Device::setTxGain(double dB) {
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|  
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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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| 
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|    m_uTx->setPga(0,dB);
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|    m_uTx->setPga(1,dB);
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| 
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|    //LOG(NOTICE) << "Setting TX PGA to " << dB << " dB.";
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| 
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|    writeLock.unlock();
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|   
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|    return dB;
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| }
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| 
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| 
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| double RAD1Device::setRxGain(double dB) {
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| 
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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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|    
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|    double dBret = dB;
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| 
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|    dB = dB - minRxGain();
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| 
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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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| 
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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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| 
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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,
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| 			    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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|   
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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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| 
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|   if (underrun) *underrun = false;
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|  
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|   uint32_t readBuf[2000];
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|  
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|   while (1) {
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|     //guestimate USB read size
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|     int readLen=0;
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|     {
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|       int numSamplesNeeded = timestamp + len - timeEnd;
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|       if (numSamplesNeeded <=0) break;
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|       readLen = 512 * ((int) ceil((float) numSamplesNeeded/126.0));
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|       if (readLen > 8000) readLen= (8000/512)*512;
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|     }
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|     
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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
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|       uint32_t* tmpBuf = (uint32_t *) (readBuf+pktNum*512/4);
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|       TIMESTAMP pktTimestamp = usrp_to_host_u32(tmpBuf[1]);
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|       uint32_t word0 = usrp_to_host_u32(tmpBuf[0]);
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|       uint32_t chan = (word0 >> 16) & 0x1f;
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|       unsigned payloadSz = word0 & 0x1ff;
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|       LOG(DEBUG) << "first two bytes: " << hex << word0 << " " << dec << pktTimestamp;
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| 
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|       bool incrementHi32 = ((lastPktTimestamp & 0x0ffffffffll) > pktTimestamp);
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|       if (incrementHi32 && (timeStart!=0)) {
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|            LOG(DEBUG) << "high 32 increment!!!";
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|            hi32Timestamp++;
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|       }
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|       pktTimestamp = (((TIMESTAMP) hi32Timestamp) << 32) | pktTimestamp;
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|       lastPktTimestamp = pktTimestamp;
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| 
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|       if (chan == 0x01f) {
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| 	// control reply, check to see if its ping reply
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|         uint32_t word2 = usrp_to_host_u32(tmpBuf[2]);
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| 	if ((word2 >> 16) == ((0x01 << 8) | 0x02)) {
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|           timestamp -= timestampOffset;
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| 	  timestampOffset = pktTimestamp - pingTimestamp + PINGOFFSET;
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| 	  LOG(DEBUG) << "updating timestamp offset to: " << timestampOffset;
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|           timestamp += timestampOffset;
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| 	  isAligned = true;
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| 	}
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| 	continue;
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|       }
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|       if (chan != 0) {
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| 	LOG(DEBUG) << "chan: " << chan << ", timestamp: " << pktTimestamp << ", sz:" << payloadSz;
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| 	continue;
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|       }
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|       if ((word0 >> 28) & 0x04) {
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| 	if (underrun) *underrun = true; 
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| 	LOG(DEBUG) << "UNDERRUN in TRX->USRP interface";
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|       }
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|       if (RSSI) *RSSI = (word0 >> 21) & 0x3f;
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|       
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|       if (!isAligned) continue;
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|       
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|       unsigned cursorStart = pktTimestamp - timeStart + dataStart;
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|       while (cursorStart*2 > currDataSize) {
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| 	cursorStart -= currDataSize/2;
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|       }
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|       if (cursorStart*2 + payloadSz/2 > currDataSize) {
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| 	// need to circle around buffer
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| 	memcpy(data+cursorStart*2,tmpBuf+2,(currDataSize-cursorStart*2)*sizeof(short));
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| 	memcpy(data,tmpBuf+2+(currDataSize/2-cursorStart),payloadSz-(currDataSize-cursorStart*2)*sizeof(short));
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|       }
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|       else {
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| 	memcpy(data+cursorStart*2,tmpBuf+2,payloadSz);
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|       }
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|       if (pktTimestamp + payloadSz/2/sizeof(short) > timeEnd) 
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| 	timeEnd = pktTimestamp+payloadSz/2/sizeof(short);
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| 
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|       //LOG(DEBUG) << "timeStart: " << timeStart << ", timeEnd: " << timeEnd << ", pktTimestamp: " << pktTimestamp;
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| 
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|     }	
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|   }     
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|  
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|   // copy desired data to buf
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|   unsigned bufStart = dataStart+(timestamp-timeStart);
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|   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
 | |
| }
 | |
| 
 | |
| 
 | |
| #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);
 | |
|   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
 | |
| 
 | |
| 
 |