3 * Copyright 2008 Free Software Foundation, Inc.
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #ifndef INCLUDED_USRP2_H
20 #define INCLUDED_USRP2_H
22 #include <boost/shared_ptr.hpp>
23 #include <boost/utility.hpp>
27 #include <usrp2/rx_sample_handler.h>
28 #include <usrp2/tune_result.h>
32 * N.B., The interfaces described here are still in flux.
34 * We will keep all the code in the tree up-to-date with regard to changes
35 * here, but reserve the right to change this on a whim.
41 * Structure to hold properties of USRP2 hardware devices.
48 uint8_t fpga_md5sum[16];
49 uint8_t sw_md5sum[16];
52 typedef std::vector<props> props_vector_t;
55 * \brief Search the ethernet for all USRP2s or for a specific USRP2.
57 * \param ifc is the name of the OS ethernet interface (e.g., "eth0")
58 * \param mac_addr is the MAC address of the desired USRP2, or "" to search for all.
59 * mac_addr must be either a zero length string, "", or must be of the form
60 * "01:02:03:04:05:06" or "05:06".
62 * \returns a vector of properties, 1 entry for each matching USRP2 found.
64 props_vector_t find(const std::string &ifc, const std::string &mac_addr="");
68 class usrp2 : boost::noncopyable
71 static const unsigned int MAX_CHAN = 30;
74 * Shared pointer to this class
76 typedef boost::shared_ptr<usrp2> sptr;
79 * Static function to return an instance of usrp2 as a shared pointer
81 * \param ifc Network interface name, e.g., "eth0"
82 * \param addr Network mac address, e.g., "01:23:45:67:89:ab", "89:ab" or "".
83 * If \p addr is HH:HH, it's treated as if it were 00:50:c2:85:HH:HH
84 * "" will autoselect a USRP2 if there is only a single one on the local ethernet.
86 static sptr make(const std::string &ifc, const std::string &addr="");
94 * Returns the MAC address associated with this USRP
96 std::string mac_addr();
99 * ----------------------------------------------------------------
100 * Rx configuration and control
101 * ----------------------------------------------------------------
106 * \param gain in dB (more or less)
108 bool set_rx_gain(double gain);
110 //! return minimum Rx gain
111 double rx_gain_min();
113 //! return maximum Rx gain
114 double rx_gain_max();
116 //! return Rx gain db_per_step
117 double rx_gain_db_per_step();
120 * Set receiver center frequency
122 bool set_rx_center_freq(double frequency, tune_result *result);
124 //! return minimum Rx center frequency
125 double rx_freq_min();
127 //! return maximum Rx center frequency
128 double rx_freq_max();
131 * Set receiver sample rate decimation
133 bool set_rx_decim(int decimation_factor);
136 * Set receiver IQ magnitude scaling
138 bool set_rx_scale_iq(int scale_i, int scale_q);
141 * Set received sample format
143 * domain: complex or real
144 * type: floating, fixed point, or raw
145 * depth: bits per sample
147 * Sets format over the wire for samples from USRP2.
149 // bool set_rx_format(...);
152 * Start streaming receive mode. USRP2 will send a continuous stream of
153 * DSP pipeline samples to host. Call rx_samples(...) to access.
155 * \param channel Stream channel number (0-30)
156 * \param items_per_frame Number of 32-bit items per frame.
158 bool start_rx_streaming(unsigned int channel=0, unsigned int items_per_frame=0);
161 * Stop streaming receive mode.
163 bool stop_rx_streaming(unsigned int channel=0);
166 * \brief Receive data from the specified channel
167 * This method is used to receive all data: streaming or discrete.
169 bool rx_samples(unsigned int channel, rx_sample_handler *handler);
172 * Returns number of times receive overruns have occurred
174 unsigned int rx_overruns();
177 * Returns total number of missing frames from overruns.
179 unsigned int rx_missing();
182 * ----------------------------------------------------------------
183 * Tx configuration and control
184 * ----------------------------------------------------------------
188 * Set transmitter gain
190 bool set_tx_gain(double gain);
192 //! return minimum Tx gain
193 double tx_gain_min();
195 //! return maximum Tx gain
196 double tx_gain_max();
198 //! return Tx gain db_per_step
199 double tx_gain_db_per_step();
202 * Set transmitter center frequency
204 bool set_tx_center_freq(double frequency, tune_result *result);
206 //! return minimum Tx center frequency
207 double tx_freq_min();
209 //! return maximum Tx center frequency
210 double tx_freq_max();
213 * Set transmitter sample rate interpolation
215 bool set_tx_interp(int interpolation_factor);
218 * Set transmit IQ magnitude scaling
220 bool set_tx_scale_iq(int scale_i, int scale_q);
223 * Set transmit sample format
225 * domain: complex or real
226 * type: floating, fixed point, or raw
227 * depth: bits per sample
229 * Sets format over the wire for samples to USRP2.
231 // bool set_tx_format(...);
234 * \brief transmit complex<float> samples to USRP2
236 * \param channel specifies the channel to send them to
237 * \param samples are the samples to transmit. They should be in the range [-1.0, +1.0]
238 * \param nsamples is the number of samples to transmit
239 * \param metadata provides the timestamp and flags
241 * The complex<float> samples are converted to the appropriate
242 * "on the wire" representation, depending on the current USRP2
243 * configuration. Typically, this is big-endian 16-bit I & Q.
245 bool tx_32fc(unsigned int channel,
246 const std::complex<float> *samples,
248 const tx_metadata *metadata);
251 * \brief transmit complex<int16_t> samples to USRP2
253 * \param channel specifies the channel to send them to
254 * \param samples are the samples to transmit
255 * \param nsamples is the number of samples to transmit
256 * \param metadata provides the timestamp and flags
258 * The complex<int16_t> samples are converted to the appropriate
259 * "on the wire" representation, depending on the current USRP2
260 * configuration. Typically, this is big-endian 16-bit I & Q.
262 bool tx_16sc(unsigned int channel,
263 const std::complex<int16_t> *samples,
265 const tx_metadata *metadata);
268 * \brief transmit raw uint32_t data items to USRP2
270 * The caller is responsible for ensuring that the items are
271 * formatted appropriately for the USRP2 and its configuration.
272 * This method is used primarily by the system itself. Users
273 * should call tx_32fc or tx_16sc instead.
275 * \param channel specifies the channel to send them to
276 * \param items are the data items to transmit
277 * \param nitems is the number of items to transmit
278 * \param metadata provides the timestamp and flags
280 bool tx_raw(unsigned int channel,
281 const uint32_t *items,
283 const tx_metadata *metadata);
286 * ----------------------------------------------------------------
287 * miscellaneous methods
288 * ----------------------------------------------------------------
292 * \brief MIMO configuration
294 * \param flags from usrp2_mimo_config.h
303 * and optionally this:
305 * MC_PROVIDE_CLK_TO_MIMO
308 bool config_mimo(int flags);
311 //! Get frequency of master oscillator in Hz
312 bool fpga_master_clock_freq(long *freq);
314 // Get Sampling rate of A/D converter in Hz
315 bool adc_rate(long *rate);
317 // Get Sampling rate of D/A converter in Hz
318 bool dac_rate(long *rate);
321 * \brief Get Tx daughterboard ID
323 * \param[out] dbid returns the daughterboard id.
325 * daughterboard id >= 0 if successful, -1 if no daugherboard installed,
326 * -2 if invalid EEPROM on daughterboard.
328 bool tx_daughterboard_id(int *dbid);
331 * \brief Get Rx daughterboard ID
333 * \param[out] dbid returns the daughterboard id.
335 * daughterboard id >= 0 if successful, -1 if no daugherboard installed,
336 * -2 if invalid EEPROM on daughterboard.
338 bool rx_daughterboard_id(int *dbid);
341 * ----------------------------------------------------------------
343 * ----------------------------------------------------------------
347 * Burn new mac address into EEPROM on USRP2
349 * \param new_addr Network mac address, e.g., "01:23:45:67:89:ab" or "89:ab".
350 * If \p addr is HH:HH, it's treated as if it were 00:50:c2:85:HH:HH
352 bool burn_mac_addr(const std::string &new_addr);
355 #if 0 // not yet implemented
357 * \brief Write EEPROM on motherboard or any daughterboard.
358 * \param i2c_addr I2C bus address of EEPROM
359 * \param eeprom_offset byte offset in EEPROM to begin writing
360 * \param buf the data to write
361 * \returns true iff sucessful
363 bool write_eeprom (int i2c_addr, int eeprom_offset, const std::string &buf);
366 * \brief Read EEPROM on motherboard or any daughterboard.
367 * \param i2c_addr I2C bus address of EEPROM
368 * \param eeprom_offset byte offset in EEPROM to begin reading
369 * \param len number of bytes to read
370 * \returns the data read if successful, else a zero length string.
372 std::string read_eeprom (int i2c_addr, int eeprom_offset, int len);
375 * \brief Write to I2C peripheral
376 * \param i2c_addr I2C bus address (7-bits)
377 * \param buf the data to write
378 * \returns true iff successful
379 * Writes are limited to a maximum of of 64 bytes.
381 bool write_i2c (int i2c_addr, const std::string &buf);
384 * \brief Read from I2C peripheral
385 * \param i2c_addr I2C bus address (7-bits)
386 * \param len number of bytes to read
387 * \returns the data read if successful, else a zero length string.
388 * Reads are limited to a maximum of 64 bytes.
390 std::string read_i2c (int i2c_addr, int len);
393 * \brief Write data to SPI bus peripheral.
395 * \param optional_header 0,1 or 2 bytes to write before buf.
396 * \param enables bitmask of peripherals to write. See usrp_spi_defs.h
397 * \param format transaction format. See usrp_spi_defs.h SPI_FMT_*
398 * \param buf the data to write
399 * \returns true iff successful
400 * Writes are limited to a maximum of 64 bytes.
402 * If \p format specifies that optional_header bytes are present, they are
403 * written to the peripheral immediately prior to writing \p buf.
405 bool write_spi (int optional_header, int enables, int format, const std::string &buf);
408 * \brief Read data from SPI bus peripheral.
410 * \param optional_header 0,1 or 2 bytes to write before buf.
411 * \param enables bitmask of peripheral to read. See usrp_spi_defs.h
412 * \param format transaction format. See usrp_spi_defs.h SPI_FMT_*
413 * \param len number of bytes to read. Must be in [0,64].
414 * \returns the data read if sucessful, else a zero length string.
416 * Reads are limited to a maximum of 64 bytes.
418 * If \p format specifies that optional_header bytes are present, they
419 * are written to the peripheral first. Then \p len bytes are read from
420 * the peripheral and returned.
422 std::string read_spi (int optional_header, int enables, int format, int len);
426 class impl; // implementation details
429 // Static function to retrieve or create usrp2 instance
430 static sptr find_existing_or_make_new(const std::string &ifc, props *p);
432 // Only class members can instantiate this class
433 usrp2(const std::string &ifc, props *p);
435 // All private state is held in opaque pointer
436 std::auto_ptr<impl> d_impl;
441 std::ostream& operator<<(std::ostream &os, const usrp2::props &x);
444 #endif /* INCLUDED_USRP2_H */