3 * Copyright 2008,2009 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>
26 #include <usrp2/rx_sample_handler.h>
27 #include <usrp2/tune_result.h>
31 * N.B., The interfaces described here are still in flux.
33 * We will keep all the code in the tree up-to-date with regard to changes
34 * here, but reserve the right to change this on a whim.
40 * Structure to hold properties of USRP2 hardware devices.
47 uint8_t fpga_md5sum[16];
48 uint8_t sw_md5sum[16];
51 typedef std::vector<props> props_vector_t;
54 * \brief Search the ethernet for all USRP2s or for a specific USRP2.
56 * \param ifc is the name of the OS ethernet interface (e.g., "eth0")
57 * \param mac_addr is the MAC address of the desired USRP2, or "" to search for all.
58 * mac_addr must be either a zero length string, "", or must be of the form
59 * "01:02:03:04:05:06" or "05:06".
61 * \returns a vector of properties, 1 entry for each matching USRP2 found.
63 props_vector_t find(const std::string &ifc, const std::string &mac_addr="");
67 class usrp2 : boost::noncopyable
70 static const unsigned int MAX_CHAN = 30;
73 * Shared pointer to this class
75 typedef boost::shared_ptr<usrp2> sptr;
78 * Static function to return an instance of usrp2 as a shared pointer
80 * \param ifc Network interface name, e.g., "eth0"
81 * \param addr Network mac address, e.g., "01:23:45:67:89:ab", "89:ab" or "".
82 * If \p addr is HH:HH, it's treated as if it were 00:50:c2:85:HH:HH
83 * "" will autoselect a USRP2 if there is only a single one on the local ethernet.
85 static sptr make(const std::string &ifc, const std::string &addr="");
93 * Returns the MAC address associated with this USRP
95 std::string mac_addr();
98 * Returns the GbE interface name associated with this USRP
100 std::string ifc_name();
103 * ----------------------------------------------------------------
104 * Rx configuration and control
105 * ----------------------------------------------------------------
110 * \param gain in dB (more or less)
112 bool set_rx_gain(double gain);
114 //! return minimum Rx gain
115 double rx_gain_min();
117 //! return maximum Rx gain
118 double rx_gain_max();
120 //! return Rx gain db_per_step
121 double rx_gain_db_per_step();
124 * \brief Set receive daughterboard LO offset frequency
126 bool set_rx_lo_offset(double frequency);
129 * Set receiver center frequency
131 bool set_rx_center_freq(double frequency, tune_result *result);
133 //! return minimum Rx center frequency
134 double rx_freq_min();
136 //! return maximum Rx center frequency
137 double rx_freq_max();
140 * Set receiver sample rate decimation
142 bool set_rx_decim(int decimation_factor);
144 //! Return current decimation factor
148 * Set receiver IQ magnitude scaling
150 bool set_rx_scale_iq(int scale_i, int scale_q);
153 * Set received sample format
155 * domain: complex or real
156 * type: floating, fixed point, or raw
157 * depth: bits per sample
159 * Sets format over the wire for samples from USRP2.
161 // bool set_rx_format(...);
164 * Start streaming receive mode. USRP2 will send a continuous stream of
165 * DSP pipeline samples to host. Call rx_samples(...) to access.
167 * \param channel Stream channel number (0-30)
168 * \param items_per_frame Number of 32-bit items per frame.
170 bool start_rx_streaming(unsigned int channel=0, unsigned int items_per_frame=0);
173 * Stop streaming receive mode.
175 bool stop_rx_streaming(unsigned int channel=0);
178 * \brief Receive data from the specified channel
179 * This method is used to receive all data: streaming or discrete.
181 bool rx_samples(unsigned int channel, rx_sample_handler *handler);
184 * Returns number of times receive overruns have occurred
186 unsigned int rx_overruns();
189 * Returns total number of missing frames from overruns.
191 unsigned int rx_missing();
194 * ----------------------------------------------------------------
195 * Tx configuration and control
196 * ----------------------------------------------------------------
200 * Set transmitter gain
202 bool set_tx_gain(double gain);
204 //! return minimum Tx gain
205 double tx_gain_min();
207 //! return maximum Tx gain
208 double tx_gain_max();
210 //! return Tx gain db_per_step
211 double tx_gain_db_per_step();
214 * \brief Set transmit daughterboard LO offset frequency
216 bool set_tx_lo_offset(double frequency);
219 * Set transmitter center frequency
221 bool set_tx_center_freq(double frequency, tune_result *result);
223 //! return minimum Tx center frequency
224 double tx_freq_min();
226 //! return maximum Tx center frequency
227 double tx_freq_max();
230 * Set transmitter sample rate interpolation
232 bool set_tx_interp(int interpolation_factor);
234 //! Return current interpolation factor
238 * \brief Calculate default scale_iq for given interpolation rate
240 void default_tx_scale_iq(int interpolation_factor, int *scale_i, int *scale_q);
243 * Set transmit IQ magnitude scaling
245 bool set_tx_scale_iq(int scale_i, int scale_q);
248 * Set transmit sample format
250 * domain: complex or real
251 * type: floating, fixed point, or raw
252 * depth: bits per sample
254 * Sets format over the wire for samples to USRP2.
256 // bool set_tx_format(...);
259 * \brief transmit complex<float> samples to USRP2
261 * \param channel specifies the channel to send them to
262 * \param samples are the samples to transmit. They should be in the range [-1.0, +1.0]
263 * \param nsamples is the number of samples to transmit
264 * \param metadata provides the timestamp and flags
266 * The complex<float> samples are converted to the appropriate
267 * "on the wire" representation, depending on the current USRP2
268 * configuration. Typically, this is big-endian 16-bit I & Q.
270 bool tx_32fc(unsigned int channel,
271 const std::complex<float> *samples,
273 const tx_metadata *metadata);
276 * \brief transmit complex<int16_t> samples to USRP2
278 * \param channel specifies the channel to send them to
279 * \param samples are the samples to transmit
280 * \param nsamples is the number of samples to transmit
281 * \param metadata provides the timestamp and flags
283 * The complex<int16_t> samples are converted to the appropriate
284 * "on the wire" representation, depending on the current USRP2
285 * configuration. Typically, this is big-endian 16-bit I & Q.
287 bool tx_16sc(unsigned int channel,
288 const std::complex<int16_t> *samples,
290 const tx_metadata *metadata);
293 * \brief transmit raw uint32_t data items to USRP2
295 * The caller is responsible for ensuring that the items are
296 * formatted appropriately for the USRP2 and its configuration.
297 * This method is used primarily by the system itself. Users
298 * should call tx_32fc or tx_16sc instead.
300 * \param channel specifies the channel to send them to
301 * \param items are the data items to transmit
302 * \param nitems is the number of items to transmit
303 * \param metadata provides the timestamp and flags
305 bool tx_raw(unsigned int channel,
306 const uint32_t *items,
308 const tx_metadata *metadata);
311 * ----------------------------------------------------------------
312 * miscellaneous methods
313 * ----------------------------------------------------------------
317 * \brief MIMO configuration
319 * \param flags from usrp2_mimo_config.h
328 * and optionally this:
330 * MC_PROVIDE_CLK_TO_MIMO
333 bool config_mimo(int flags);
336 //! Get frequency of master oscillator in Hz
337 bool fpga_master_clock_freq(long *freq);
339 // Get Sampling rate of A/D converter in Hz
340 bool adc_rate(long *rate);
342 // Get Sampling rate of D/A converter in Hz
343 bool dac_rate(long *rate);
346 * \brief Get Tx daughterboard ID
348 * \param[out] dbid returns the daughterboard id.
350 * daughterboard id >= 0 if successful, -1 if no daugherboard installed,
351 * -2 if invalid EEPROM on daughterboard.
353 bool tx_daughterboard_id(int *dbid);
356 * \brief Get Rx daughterboard ID
358 * \param[out] dbid returns the daughterboard id.
360 * daughterboard id >= 0 if successful, -1 if no daugherboard installed,
361 * -2 if invalid EEPROM on daughterboard.
363 bool rx_daughterboard_id(int *dbid);
366 * ----------------------------------------------------------------
368 * ----------------------------------------------------------------
372 * Burn new mac address into EEPROM on USRP2
374 * \param new_addr Network mac address, e.g., "01:23:45:67:89:ab" or "89:ab".
375 * If \p addr is HH:HH, it's treated as if it were 00:50:c2:85:HH:HH
377 bool burn_mac_addr(const std::string &new_addr);
380 * Reset master time to 0 at next PPS edge
385 * Reset master time to 0 at every PPS edge
387 bool sync_every_pps(bool enable);
390 * Read memory from Wishbone bus as 32-bit words. Handles endian swapping if needed.
392 * \param addr 32-bit aligned address. Only the lower 16-bits are significant.
393 * \param words Number of 32-bit words
395 * \returns Vector of 32-bit read values
397 * WARNING: Attempts to read memory from addresses that do not correspond to RAM or
398 * memory-mapped peripherals may cause the USRP2 to hang, requiring a power cycle.
401 std::vector<uint32_t> peek32(uint32_t addr, uint32_t words);
404 * Write memory to Wishbone bus as 32-bit words. Handles endian swapping if needed.
406 * \param addr 32-bit aligned address. Only the lower 16-bits are significant
407 * \param data Vector of 32-bit values to write.
409 * \returns true iff successful
411 * WARNING: Attempts to read memory from addresses that do not correspond to RAM or
412 * memory-mapped peripherals may cause the USRP2 to hang, requiring a power cycle.
415 bool poke32(uint32_t addr, const std::vector<uint32_t> &data);
417 #if 0 // not yet implemented
419 * \brief Write EEPROM on motherboard or any daughterboard.
420 * \param i2c_addr I2C bus address of EEPROM
421 * \param eeprom_offset byte offset in EEPROM to begin writing
422 * \param buf the data to write
423 * \returns true iff sucessful
425 bool write_eeprom (int i2c_addr, int eeprom_offset, const std::string &buf);
428 * \brief Read EEPROM on motherboard or any daughterboard.
429 * \param i2c_addr I2C bus address of EEPROM
430 * \param eeprom_offset byte offset in EEPROM to begin reading
431 * \param len number of bytes to read
432 * \returns the data read if successful, else a zero length string.
434 std::string read_eeprom (int i2c_addr, int eeprom_offset, int len);
437 * \brief Write to I2C peripheral
438 * \param i2c_addr I2C bus address (7-bits)
439 * \param buf the data to write
440 * \returns true iff successful
441 * Writes are limited to a maximum of of 64 bytes.
443 bool write_i2c (int i2c_addr, const std::string &buf);
446 * \brief Read from I2C peripheral
447 * \param i2c_addr I2C bus address (7-bits)
448 * \param len number of bytes to read
449 * \returns the data read if successful, else a zero length string.
450 * Reads are limited to a maximum of 64 bytes.
452 std::string read_i2c (int i2c_addr, int len);
455 * \brief Write data to SPI bus peripheral.
457 * \param optional_header 0,1 or 2 bytes to write before buf.
458 * \param enables bitmask of peripherals to write. See usrp_spi_defs.h
459 * \param format transaction format. See usrp_spi_defs.h SPI_FMT_*
460 * \param buf the data to write
461 * \returns true iff successful
462 * Writes are limited to a maximum of 64 bytes.
464 * If \p format specifies that optional_header bytes are present, they are
465 * written to the peripheral immediately prior to writing \p buf.
467 bool write_spi (int optional_header, int enables, int format, const std::string &buf);
470 * \brief Read data from SPI bus peripheral.
472 * \param optional_header 0,1 or 2 bytes to write before buf.
473 * \param enables bitmask of peripheral to read. See usrp_spi_defs.h
474 * \param format transaction format. See usrp_spi_defs.h SPI_FMT_*
475 * \param len number of bytes to read. Must be in [0,64].
476 * \returns the data read if sucessful, else a zero length string.
478 * Reads are limited to a maximum of 64 bytes.
480 * If \p format specifies that optional_header bytes are present, they
481 * are written to the peripheral first. Then \p len bytes are read from
482 * the peripheral and returned.
484 std::string read_spi (int optional_header, int enables, int format, int len);
488 class impl; // implementation details
491 // Static function to retrieve or create usrp2 instance
492 static sptr find_existing_or_make_new(const std::string &ifc, props *p);
494 // Only class members can instantiate this class
495 usrp2(const std::string &ifc, props *p);
497 // All private state is held in opaque pointer
498 std::auto_ptr<impl> d_impl;
503 std::ostream& operator<<(std::ostream &os, const usrp2::props &x);
506 #endif /* INCLUDED_USRP2_H */