| /* |
| * Copyright 2008 Free Software Foundation, Inc. |
| * |
| * This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion. |
| * |
| * This use of this software may be subject to additional restrictions. |
| * See the LEGAL file in the main directory for details. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| |
| */ |
| |
| #ifndef _USRP_DEVICE_H_ |
| #define _USRP_DEVICE_H_ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include "radioDevice.h" |
| |
| #ifdef HAVE_LIBUSRP_3_3 // [ |
| # include <usrp/usrp_standard.h> |
| # include <usrp/usrp_bytesex.h> |
| # include <usrp/usrp_prims.h> |
| #else // HAVE_LIBUSRP_3_3 ][ |
| # include "usrp_standard.h" |
| # include "usrp_bytesex.h" |
| # include "usrp_prims.h" |
| #endif // !HAVE_LIBUSRP_3_3 ] |
| #include <sys/time.h> |
| #include <math.h> |
| #include <string> |
| #include <iostream> |
| |
| |
| /** Define types which are not defined in libusrp-3.1 */ |
| #ifndef HAVE_LIBUSRP_3_2 |
| #include <boost/shared_ptr.hpp> |
| typedef boost::shared_ptr<usrp_standard_tx> usrp_standard_tx_sptr; |
| typedef boost::shared_ptr<usrp_standard_rx> usrp_standard_rx_sptr; |
| #endif // HAVE_LIBUSRP_3_2 |
| |
| |
| |
| /** A class to handle a USRP rev 4, with a two RFX900 daughterboards */ |
| class USRPDevice: public RadioDevice { |
| |
| private: |
| |
| static const double masterClockRate; ///< the USRP clock rate |
| double desiredSampleRate; ///< the desired sampling rate |
| usrp_standard_rx_sptr m_uRx; ///< the USRP receiver |
| usrp_standard_tx_sptr m_uTx; ///< the USRP transmitter |
| |
| db_base_sptr m_dbRx; ///< rx daughterboard |
| db_base_sptr m_dbTx; ///< tx daughterboard |
| usrp_subdev_spec rxSubdevSpec; |
| usrp_subdev_spec txSubdevSpec; |
| |
| double actualSampleRate; ///< the actual USRP sampling rate |
| unsigned int decimRate; ///< the USRP decimation rate |
| |
| unsigned long long samplesRead; ///< number of samples read from USRP |
| unsigned long long samplesWritten; ///< number of samples sent to USRP |
| |
| bool started; ///< flag indicates USRP has started |
| bool skipRx; ///< set if USRP is transmit-only. |
| |
| static const unsigned int currDataSize_log2 = 21; |
| static const unsigned long currDataSize = (1 << currDataSize_log2); |
| short *data; |
| unsigned long dataStart; |
| unsigned long dataEnd; |
| TIMESTAMP timeStart; |
| TIMESTAMP timeEnd; |
| bool isAligned; |
| |
| Mutex writeLock; |
| |
| short *currData; ///< internal data buffer when reading from USRP |
| TIMESTAMP currTimestamp; ///< timestamp of internal data buffer |
| unsigned currLen; ///< size of internal data buffer |
| |
| TIMESTAMP timestampOffset; ///< timestamp offset b/w Tx and Rx blocks |
| TIMESTAMP latestWriteTimestamp; ///< timestamp of most recent ping command |
| TIMESTAMP pingTimestamp; ///< timestamp of most recent ping response |
| static const TIMESTAMP PINGOFFSET = 272; ///< undetermined delay b/w ping response timestamp and true receive timestamp |
| unsigned long hi32Timestamp; |
| unsigned long lastPktTimestamp; |
| |
| double rxGain; |
| |
| #ifdef SWLOOPBACK |
| short loopbackBuffer[1000000]; |
| int loopbackBufferSize; |
| double samplePeriod; |
| |
| struct timeval startTime; |
| struct timeval lastReadTime; |
| bool firstRead; |
| #endif |
| |
| /** Set the transmission frequency */ |
| bool tx_setFreq(double freq, double *actual_freq); |
| |
| /** Set the receiver frequency */ |
| bool rx_setFreq(double freq, double *actual_freq); |
| |
| public: |
| |
| /** Object constructor */ |
| USRPDevice (double _desiredSampleRate, bool skipRx); |
| |
| /** Instantiate the USRP */ |
| bool open(const std::string &); |
| |
| /** Start the USRP */ |
| bool start(); |
| |
| /** Stop the USRP */ |
| bool stop(); |
| |
| /** Set priority not supported */ |
| void setPriority() { return; } |
| |
| /** Only USB bus supported */ |
| busType getBus() { return USB; } |
| |
| /** |
| Read samples from the USRP. |
| @param buf preallocated buf to contain read result |
| @param len number of samples desired |
| @param overrun Set if read buffer has been overrun, e.g. data not being read fast enough |
| @param timestamp The timestamp of the first samples to be read |
| @param underrun Set if USRP does not have data to transmit, e.g. data not being sent fast enough |
| @param RSSI The received signal strength of the read result |
| @return The number of samples actually read |
| */ |
| int readSamples(short *buf, int len, bool *overrun, |
| TIMESTAMP timestamp = 0xffffffff, |
| bool *underrun = NULL, |
| unsigned *RSSI = NULL); |
| /** |
| Write samples to the USRP. |
| @param buf Contains the data to be written. |
| @param len number of samples to write. |
| @param underrun Set if USRP does not have data to transmit, e.g. data not being sent fast enough |
| @param timestamp The timestamp of the first sample of the data buffer. |
| @param isControl Set if data is a control packet, e.g. a ping command |
| @return The number of samples actually written |
| */ |
| int writeSamples(short *buf, int len, bool *underrun, |
| TIMESTAMP timestamp = 0xffffffff, |
| bool isControl = false); |
| |
| /** Update the alignment between the read and write timestamps */ |
| bool updateAlignment(TIMESTAMP timestamp); |
| |
| /** Set the transmitter frequency */ |
| bool setTxFreq(double wFreq); |
| |
| /** Set the receiver frequency */ |
| bool setRxFreq(double wFreq); |
| |
| /** Returns the starting write Timestamp*/ |
| TIMESTAMP initialWriteTimestamp(void) { return 20000;} |
| |
| /** Returns the starting read Timestamp*/ |
| TIMESTAMP initialReadTimestamp(void) { return 20000;} |
| |
| /** returns the full-scale transmit amplitude **/ |
| double fullScaleInputValue() {return 13500.0;} |
| |
| /** returns the full-scale receive amplitude **/ |
| double fullScaleOutputValue() {return 9450.0;} |
| |
| /** sets the receive chan gain, returns the gain setting **/ |
| double setRxGain(double dB); |
| |
| /** get the current receive gain */ |
| double getRxGain(void) {return rxGain;} |
| |
| /** return maximum Rx Gain **/ |
| double maxRxGain(void); |
| |
| /** return minimum Rx Gain **/ |
| double minRxGain(void); |
| |
| /** sets the transmit chan gain, returns the gain setting **/ |
| double setTxGain(double dB); |
| |
| /** return maximum Tx Gain **/ |
| double maxTxGain(void); |
| |
| /** return minimum Rx Gain **/ |
| double minTxGain(void); |
| |
| |
| /** Return internal status values */ |
| inline double getTxFreq() { return 0;} |
| inline double getRxFreq() { return 0;} |
| inline double getSampleRate() {return actualSampleRate;} |
| inline double numberRead() { return samplesRead; } |
| inline double numberWritten() { return samplesWritten;} |
| |
| }; |
| |
| #endif // _USRP_DEVICE_H_ |
| |