| /* |
| * 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 __RADIO_DEVICE_H__ |
| #define __RADIO_DEVICE_H__ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "GSMCommon.h" |
| #include "Logger.h" |
| |
| extern "C" { |
| #include "config_defs.h" |
| } |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #define GSMRATE (1625e3/6) |
| #define MCBTS_SPACING 800000.0 |
| |
| /** a 64-bit virtual timestamp for radio data */ |
| typedef unsigned long long TIMESTAMP; |
| |
| /** A class to handle a USRP rev 4, with a two RFX900 daughterboards */ |
| class RadioDevice { |
| |
| public: |
| /* Available transport bus types */ |
| enum TxWindowType { TX_WINDOW_USRP1, TX_WINDOW_FIXED, TX_WINDOW_LMS1 }; |
| |
| /* Radio interface types */ |
| enum InterfaceType { |
| NORMAL, |
| RESAMP_64M, |
| RESAMP_100M, |
| MULTI_ARFCN, |
| }; |
| |
| static RadioDevice *make(size_t tx_sps, size_t rx_sps, InterfaceType type, |
| size_t chans = 1, double offset = 0.0, |
| const std::vector<std::string>& tx_paths = std::vector<std::string>(1, ""), |
| const std::vector<std::string>& rx_paths = std::vector<std::string>(1, "")); |
| |
| /** Initialize the USRP */ |
| virtual int open(const std::string &args, int ref, bool swap_channels)=0; |
| |
| virtual ~RadioDevice() { } |
| |
| /** Start the USRP */ |
| virtual bool start()=0; |
| |
| /** Stop the USRP */ |
| virtual bool stop()=0; |
| |
| /** Get the Tx window type */ |
| virtual enum TxWindowType getWindowType()=0; |
| |
| /** Enable thread priority */ |
| virtual void setPriority(float prio = 0.5) = 0; |
| |
| /** |
| Read samples from the radio. |
| @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 radio 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 |
| */ |
| virtual int readSamples(std::vector<short *> &bufs, int len, bool *overrun, |
| TIMESTAMP timestamp = 0xffffffff, bool *underrun = 0, |
| unsigned *RSSI = 0) = 0; |
| /** |
| Write samples to the radio. |
| @param buf Contains the data to be written. |
| @param len number of samples to write. |
| @param underrun Set if radio 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 |
| */ |
| virtual int writeSamples(std::vector<short *> &bufs, int len, bool *underrun, |
| TIMESTAMP timestamp, bool isControl = false) = 0; |
| |
| /** Update the alignment between the read and write timestamps */ |
| virtual bool updateAlignment(TIMESTAMP timestamp)=0; |
| |
| /** Set the transmitter frequency */ |
| virtual bool setTxFreq(double wFreq, size_t chan = 0) = 0; |
| |
| /** Set the receiver frequency */ |
| virtual bool setRxFreq(double wFreq, size_t chan = 0) = 0; |
| |
| /** Returns the starting write Timestamp*/ |
| virtual TIMESTAMP initialWriteTimestamp(void)=0; |
| |
| /** Returns the starting read Timestamp*/ |
| virtual TIMESTAMP initialReadTimestamp(void)=0; |
| |
| /** returns the full-scale transmit amplitude **/ |
| virtual double fullScaleInputValue()=0; |
| |
| /** returns the full-scale receive amplitude **/ |
| virtual double fullScaleOutputValue()=0; |
| |
| /** sets the receive chan gain, returns the gain setting **/ |
| virtual double setRxGain(double dB, size_t chan = 0) = 0; |
| |
| /** gets the current receive gain **/ |
| virtual double getRxGain(size_t chan = 0) = 0; |
| |
| /** return maximum Rx Gain **/ |
| virtual double maxRxGain(void) = 0; |
| |
| /** return minimum Rx Gain **/ |
| virtual double minRxGain(void) = 0; |
| |
| /** sets the transmit chan gain, returns the gain setting **/ |
| virtual double setTxGain(double dB, size_t chan = 0) = 0; |
| |
| /** return maximum Tx Gain **/ |
| virtual double maxTxGain(void) = 0; |
| |
| /** return minimum Tx Gain **/ |
| virtual double minTxGain(void) = 0; |
| |
| /** sets the RX path to use, returns true if successful and false otherwise */ |
| virtual bool setRxAntenna(const std::string &ant, size_t chan = 0) = 0; |
| |
| /** return the used RX path */ |
| virtual std::string getRxAntenna(size_t chan = 0) = 0; |
| |
| /** sets the RX path to use, returns true if successful and false otherwise */ |
| virtual bool setTxAntenna(const std::string &ant, size_t chan = 0) = 0; |
| |
| /** return the used RX path */ |
| virtual std::string getTxAntenna(size_t chan = 0) = 0; |
| |
| /** return whether user drives synchronization of Tx/Rx of USRP */ |
| virtual bool requiresRadioAlign() = 0; |
| |
| /** Minimum latency that the device can achieve */ |
| virtual GSM::Time minLatency() = 0; |
| |
| /** Return internal status values */ |
| virtual double getTxFreq(size_t chan = 0) = 0; |
| virtual double getRxFreq(size_t chan = 0) = 0; |
| virtual double getSampleRate()=0; |
| |
| protected: |
| size_t tx_sps, rx_sps; |
| InterfaceType iface; |
| size_t chans; |
| double lo_offset; |
| std::vector<std::string> tx_paths, rx_paths; |
| |
| RadioDevice(size_t tx_sps, size_t rx_sps, InterfaceType type, size_t chans, double offset, |
| const std::vector<std::string>& tx_paths, |
| const std::vector<std::string>& rx_paths): |
| tx_sps(tx_sps), rx_sps(rx_sps), iface(type), chans(chans), lo_offset(offset), |
| tx_paths(tx_paths), rx_paths(rx_paths) |
| { } |
| |
| bool set_antennas() { |
| unsigned int i; |
| |
| for (i = 0; i < tx_paths.size(); i++) { |
| if (tx_paths[i] == "") |
| continue; |
| LOG(DEBUG) << "Configuring channel " << i << " with antenna " << tx_paths[i]; |
| if (!setTxAntenna(tx_paths[i], i)) { |
| LOG(ALERT) << "Failed configuring channel " << i << " with antenna " << tx_paths[i]; |
| return false; |
| } |
| } |
| |
| for (i = 0; i < rx_paths.size(); i++) { |
| if (rx_paths[i] == "") |
| continue; |
| LOG(DEBUG) << "Configuring channel " << i << " with antenna " << rx_paths[i]; |
| if (!setRxAntenna(rx_paths[i], i)) { |
| LOG(ALERT) << "Failed configuring channel " << i << " with antenna " << rx_paths[i]; |
| return false; |
| } |
| } |
| LOG(INFO) << "Antennas configured successfully"; |
| return true; |
| } |
| |
| |
| }; |
| |
| #endif |