Harald Welte | 940738e | 2018-03-07 07:50:57 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2018 sysmocom - s.f.m.c. GmbH |
| 3 | * |
| 4 | * This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion. |
| 5 | * |
| 6 | * This use of this software may be subject to additional restrictions. |
| 7 | * See the LEGAL file in the main directory for details. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 12 | |
| 13 | */ |
| 14 | |
| 15 | #ifndef _LMS_DEVICE_H_ |
| 16 | #define _LMS_DEVICE_H_ |
| 17 | |
| 18 | #ifdef HAVE_CONFIG_H |
| 19 | #include "config.h" |
| 20 | #endif |
| 21 | |
| 22 | #include "radioDevice.h" |
| 23 | |
| 24 | #include <lime/LMSDevice.h> |
| 25 | #include <sys/time.h> |
| 26 | #include <math.h> |
| 27 | #include <string> |
| 28 | #include <iostream> |
| 29 | |
| 30 | /** A class to handle a LimeSuite supported device */ |
| 31 | class LMSDevice:public RadioDevice { |
| 32 | |
| 33 | private: |
| 34 | |
| 35 | lms_device_t *m_lms_dev; |
| 36 | lms_stream_t m_lms_Stream_rx; |
| 37 | lms_stream_t m_lms_Stream_tx; |
| 38 | |
| 39 | int sps; |
| 40 | |
| 41 | unsigned long long samplesRead; ///< number of samples read from LMS |
| 42 | unsigned long long samplesWritten; ///< number of samples sent to LMS |
| 43 | |
| 44 | bool started; ///< flag indicates LMS has started |
| 45 | bool skipRx; ///< set if LMS is transmit-only. |
| 46 | |
| 47 | TIMESTAMP ts_offset; |
| 48 | |
| 49 | public: |
| 50 | |
| 51 | /** Object constructor */ |
| 52 | LMSDevice(size_t sps); |
| 53 | |
| 54 | /** Instantiate the LMS */ |
| 55 | int open(const std::string &, int, bool); |
| 56 | |
| 57 | /** Start the LMS */ |
| 58 | bool start(); |
| 59 | |
| 60 | /** Stop the LMS */ |
| 61 | bool stop(); |
| 62 | |
| 63 | /** Set priority not supported */ |
| 64 | void setPriority(float prio = 0.5) { |
| 65 | } enum TxWindowType getWindowType() { |
| 66 | return TX_WINDOW_LMS1; |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | Read samples from the LMS. |
| 71 | @param buf preallocated buf to contain read result |
| 72 | @param len number of samples desired |
| 73 | @param overrun Set if read buffer has been overrun, e.g. data not being read fast enough |
| 74 | @param timestamp The timestamp of the first samples to be read |
| 75 | @param underrun Set if LMS does not have data to transmit, e.g. data not being sent fast enough |
| 76 | @param RSSI The received signal strength of the read result |
| 77 | @return The number of samples actually read |
| 78 | */ |
| 79 | int readSamples(std::vector < short *>&buf, int len, bool * overrun, |
| 80 | TIMESTAMP timestamp = 0xffffffff, bool * underrun = |
| 81 | NULL, unsigned *RSSI = NULL); |
| 82 | /** |
| 83 | Write samples to the LMS. |
| 84 | @param buf Contains the data to be written. |
| 85 | @param len number of samples to write. |
| 86 | @param underrun Set if LMS does not have data to transmit, e.g. data not being sent fast enough |
| 87 | @param timestamp The timestamp of the first sample of the data buffer. |
| 88 | @param isControl Set if data is a control packet, e.g. a ping command |
| 89 | @return The number of samples actually written |
| 90 | */ |
| 91 | int writeSamples(std::vector < short *>&bufs, int len, bool * underrun, |
| 92 | TIMESTAMP timestamp = 0xffffffff, bool isControl = |
| 93 | false); |
| 94 | |
| 95 | /** Update the alignment between the read and write timestamps */ |
| 96 | bool updateAlignment(TIMESTAMP timestamp); |
| 97 | |
| 98 | /** Set the transmitter frequency */ |
| 99 | bool setTxFreq(double wFreq, size_t chan = 0); |
| 100 | |
| 101 | /** Set the receiver frequency */ |
| 102 | bool setRxFreq(double wFreq, size_t chan = 0); |
| 103 | |
| 104 | /** Returns the starting write Timestamp*/ |
| 105 | TIMESTAMP initialWriteTimestamp(void) { |
| 106 | return 20000; |
| 107 | } |
| 108 | |
| 109 | /** Returns the starting read Timestamp*/ |
| 110 | TIMESTAMP initialReadTimestamp(void) { |
| 111 | return 20000; |
| 112 | } |
| 113 | |
| 114 | /** returns the full-scale transmit amplitude **/ |
| 115 | double fullScaleInputValue() { |
| 116 | return 13500.0; |
| 117 | } |
| 118 | |
| 119 | /** returns the full-scale receive amplitude **/ |
| 120 | double fullScaleOutputValue() { |
| 121 | return 9450.0; |
| 122 | } |
| 123 | |
| 124 | /** sets the receive chan gain, returns the gain setting **/ |
| 125 | double setRxGain(double dB, size_t chan = 0); |
| 126 | |
| 127 | /** get the current receive gain */ |
| 128 | double getRxGain(size_t chan = 0) { |
| 129 | return rxGain; |
| 130 | } |
| 131 | |
| 132 | /** return maximum Rx Gain **/ |
| 133 | double maxRxGain(void); |
| 134 | |
| 135 | /** return minimum Rx Gain **/ |
| 136 | double minRxGain(void); |
| 137 | |
| 138 | /** sets the transmit chan gain, returns the gain setting **/ |
| 139 | double setTxGain(double dB, size_t chan = 0); |
| 140 | |
| 141 | /** return maximum Tx Gain **/ |
| 142 | double maxTxGain(void); |
| 143 | |
| 144 | /** return minimum Rx Gain **/ |
| 145 | double minTxGain(void); |
| 146 | |
| 147 | /** sets the RX path to use, returns true if successful and false otherwise */ |
| 148 | bool setRxAntenna(const std::string & ant, size_t chan = 0); |
| 149 | |
| 150 | /* return the used RX path */ |
| 151 | std::string getRxAntenna(size_t chan = 0); |
| 152 | |
| 153 | /** sets the RX path to use, returns true if successful and false otherwise */ |
| 154 | bool setTxAntenna(const std::string & ant, size_t chan = 0); |
| 155 | |
| 156 | /* return the used RX path */ |
| 157 | std::string getTxAntenna(size_t chan = 0); |
| 158 | |
| 159 | /** Return internal status values */ |
| 160 | inline double getTxFreq(size_t chan = 0) { |
| 161 | return 0; |
| 162 | } |
| 163 | inline double getRxFreq(size_t chan = 0) { |
| 164 | return 0; |
| 165 | } |
| 166 | inline double getSampleRate() { |
| 167 | return actualSampleRate; |
| 168 | } |
| 169 | inline double numberRead() { |
| 170 | return samplesRead; |
| 171 | } |
| 172 | inline double numberWritten() { |
| 173 | return samplesWritten; |
| 174 | } |
| 175 | |
| 176 | std::vector < std::string > tx_paths, rx_paths; |
| 177 | }; |
| 178 | |
| 179 | #endif // _LMS_DEVICE_H_ |