2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef LIBSIGROK_LIBSIGROK_H
21 #define LIBSIGROK_LIBSIGROK_H
36 * The public libsigrok header file to be used by frontends.
38 * This is the only file that libsigrok users (frontends) are supposed to
39 * use and \#include. There are other header files which get installed with
40 * libsigrok, but those are not meant to be used directly by frontends.
42 * The correct way to get/use the libsigrok API functions is:
45 * #include <libsigrok/libsigrok.h>
50 * All possible return codes of libsigrok functions must be listed here.
51 * Functions should never return hardcoded numbers as status, but rather
52 * use these enum values. All error codes are negative numbers.
54 * The error codes are globally unique in libsigrok, i.e. if one of the
55 * libsigrok functions returns a "malloc error" it must be exactly the same
56 * return value as used by all other functions to indicate "malloc error".
57 * There must be no functions which indicate two different errors via the
60 * Also, for compatibility reasons, no defined return codes are ever removed
61 * or reused for different errors later. You can only add new entries and
62 * return codes, but never remove or redefine existing ones.
65 /** Status/error codes returned by libsigrok functions. */
67 SR_OK = 0, /**< No error. */
68 SR_ERR = -1, /**< Generic/unspecified error. */
69 SR_ERR_MALLOC = -2, /**< Malloc/calloc/realloc error. */
70 SR_ERR_ARG = -3, /**< Function argument error. */
71 SR_ERR_BUG = -4, /**< Errors hinting at internal bugs. */
72 SR_ERR_SAMPLERATE = -5, /**< Incorrect samplerate. */
73 SR_ERR_NA = -6, /**< Not applicable. */
74 SR_ERR_DEV_CLOSED = -7, /**< Device is closed, but must be open. */
75 SR_ERR_TIMEOUT = -8, /**< A timeout occurred. */
76 SR_ERR_CHANNEL_GROUP = -9, /**< A channel group must be specified. */
77 SR_ERR_DATA =-10, /**< Data is invalid. */
78 SR_ERR_IO =-11, /**< Input/output error. */
80 /* Update sr_strerror()/sr_strerror_name() (error.c) upon changes! */
83 #define SR_MAX_CHANNELNAME_LEN 32
85 /* Handy little macros */
87 #define SR_KHZ(n) ((n) * (uint64_t)(1000ULL))
88 #define SR_MHZ(n) ((n) * (uint64_t)(1000000ULL))
89 #define SR_GHZ(n) ((n) * (uint64_t)(1000000000ULL))
91 #define SR_HZ_TO_NS(n) ((uint64_t)(1000000000ULL) / (n))
93 /** libsigrok loglevels. */
95 SR_LOG_NONE = 0, /**< Output no messages at all. */
96 SR_LOG_ERR = 1, /**< Output error messages. */
97 SR_LOG_WARN = 2, /**< Output warnings. */
98 SR_LOG_INFO = 3, /**< Output informational messages. */
99 SR_LOG_DBG = 4, /**< Output debug messages. */
100 SR_LOG_SPEW = 5, /**< Output very noisy debug messages. */
104 * Use SR_API to mark public API symbols, and SR_PRIV for private symbols.
106 * Variables and functions marked 'static' are private already and don't
107 * need SR_PRIV. However, functions which are not static (because they need
108 * to be used in other libsigrok-internal files) but are also not meant to
109 * be part of the public libsigrok API, must use SR_PRIV.
111 * This uses the 'visibility' feature of gcc (requires gcc >= 4.0).
113 * This feature is not available on MinGW/Windows, as it is a feature of
114 * ELF files and MinGW/Windows uses PE files.
116 * Details: http://gcc.gnu.org/wiki/Visibility
119 /* Marks public libsigrok API symbols. */
121 #define SR_API __attribute__((visibility("default")))
126 /* Marks private, non-public libsigrok symbols (not part of the API). */
128 #define SR_PRIV __attribute__((visibility("hidden")))
133 /** Type definition for callback function for data reception. */
134 typedef int (*sr_receive_data_callback)(int fd, int revents, void *cb_data);
136 /** Data types used by sr_config_info(). */
142 SR_T_RATIONAL_PERIOD,
150 /* Update sr_variant_type_get() (hwdriver.c) upon changes! */
153 /** Value for sr_datafeed_packet.type. */
155 /** Payload is sr_datafeed_header. */
156 SR_DF_HEADER = 10000,
157 /** End of stream (no further data). */
159 /** Payload is struct sr_datafeed_meta */
161 /** The trigger matched at this point in the data feed. No payload. */
163 /** Payload is struct sr_datafeed_logic. */
165 /** Beginning of frame. No payload. */
167 /** End of frame. No payload. */
169 /** Payload is struct sr_datafeed_analog. */
172 /* Update datafeed_dump() (session.c) upon changes! */
175 /** Measured quantity, sr_analog_meaning.mq. */
177 SR_MQ_VOLTAGE = 10000,
183 /** Duty cycle, e.g. on/off ratio. */
185 /** Continuity test. */
189 /** Electrical power, usually in W, or dBm. */
191 /** Gain (a transistor's gain, or hFE, for example). */
193 /** Logarithmic representation of sound pressure relative to a
194 * reference value. */
195 SR_MQ_SOUND_PRESSURE_LEVEL,
196 /** Carbon monoxide level */
197 SR_MQ_CARBON_MONOXIDE,
199 SR_MQ_RELATIVE_HUMIDITY,
206 /** Parallel inductance (LCR meter model). */
207 SR_MQ_PARALLEL_INDUCTANCE,
208 /** Parallel capacitance (LCR meter model). */
209 SR_MQ_PARALLEL_CAPACITANCE,
210 /** Parallel resistance (LCR meter model). */
211 SR_MQ_PARALLEL_RESISTANCE,
212 /** Series inductance (LCR meter model). */
213 SR_MQ_SERIES_INDUCTANCE,
214 /** Series capacitance (LCR meter model). */
215 SR_MQ_SERIES_CAPACITANCE,
216 /** Series resistance (LCR meter model). */
217 SR_MQ_SERIES_RESISTANCE,
218 /** Dissipation factor. */
219 SR_MQ_DISSIPATION_FACTOR,
220 /** Quality factor. */
221 SR_MQ_QUALITY_FACTOR,
224 /** Difference from reference value. */
230 /** Apparent power */
231 SR_MQ_APPARENT_POWER,
235 /* Update sr_key_info_mq[] (hwdriver.c) upon changes! */
238 /** Unit of measured quantity, sr_analog_meaning.unit. */
241 SR_UNIT_VOLT = 10000,
242 /** Ampere (current). */
244 /** Ohm (resistance). */
246 /** Farad (capacity). */
248 /** Kelvin (temperature). */
250 /** Degrees Celsius (temperature). */
252 /** Degrees Fahrenheit (temperature). */
254 /** Hertz (frequency, 1/s, [Hz]). */
256 /** Percent value. */
258 /** Boolean value. */
260 /** Time in seconds. */
262 /** Unit of conductance, the inverse of resistance. */
265 * An absolute measurement of power, in decibels, referenced to
269 /** Voltage in decibel, referenced to 1 volt (dBV). */
270 SR_UNIT_DECIBEL_VOLT,
272 * Measurements that intrinsically do not have units attached, such
273 * as ratios, gains, etc. Specifically, a transistor's gain (hFE) is
274 * a unitless quantity, for example.
277 /** Sound pressure level, in decibels, relative to 20 micropascals. */
280 * Normalized (0 to 1) concentration of a substance or compound with 0
281 * representing a concentration of 0%, and 1 being 100%. This is
282 * represented as the fraction of number of particles of the substance.
284 SR_UNIT_CONCENTRATION,
285 /** Revolutions per minute. */
286 SR_UNIT_REVOLUTIONS_PER_MINUTE,
287 /** Apparent power [VA]. */
289 /** Real power [W]. */
291 /** Consumption [Wh]. */
293 /** Wind speed in meters per second. */
294 SR_UNIT_METER_SECOND,
295 /** Pressure in hectopascal */
297 /** Relative humidity assuming air temperature of 293 Kelvin (%rF). */
298 SR_UNIT_HUMIDITY_293K,
299 /** Plane angle in 1/360th of a full circle. */
301 /** Henry (inductance). */
303 /** Mass in gram [g]. */
305 /** Mass in carat [ct]. */
307 /** Mass in ounce [oz]. */
309 /** Mass in troy ounce [oz t]. */
311 /** Mass in pound [lb]. */
313 /** Mass in pennyweight [dwt]. */
315 /** Mass in grain [gr]. */
317 /** Mass in tael (variants: Hong Kong, Singapore/Malaysia, Taiwan) */
319 /** Mass in momme. */
323 /** Pieces (number of items). */
327 * Update unit_strings[] (analog.c) and fancyprint() (output/analog.c)
332 /** Values for sr_analog_meaning.mqflags. */
334 /** Voltage measurement is alternating current (AC). */
336 /** Voltage measurement is direct current (DC). */
338 /** This is a true RMS measurement. */
339 SR_MQFLAG_RMS = 0x04,
340 /** Value is voltage drop across a diode, or NAN. */
341 SR_MQFLAG_DIODE = 0x08,
342 /** Device is in "hold" mode (repeating the last measurement). */
343 SR_MQFLAG_HOLD = 0x10,
344 /** Device is in "max" mode, only updating upon a new max value. */
345 SR_MQFLAG_MAX = 0x20,
346 /** Device is in "min" mode, only updating upon a new min value. */
347 SR_MQFLAG_MIN = 0x40,
348 /** Device is in autoranging mode. */
349 SR_MQFLAG_AUTORANGE = 0x80,
350 /** Device is in relative mode. */
351 SR_MQFLAG_RELATIVE = 0x100,
352 /** Sound pressure level is A-weighted in the frequency domain,
353 * according to IEC 61672:2003. */
354 SR_MQFLAG_SPL_FREQ_WEIGHT_A = 0x200,
355 /** Sound pressure level is C-weighted in the frequency domain,
356 * according to IEC 61672:2003. */
357 SR_MQFLAG_SPL_FREQ_WEIGHT_C = 0x400,
358 /** Sound pressure level is Z-weighted (i.e. not at all) in the
359 * frequency domain, according to IEC 61672:2003. */
360 SR_MQFLAG_SPL_FREQ_WEIGHT_Z = 0x800,
361 /** Sound pressure level is not weighted in the frequency domain,
362 * albeit without standards-defined low and high frequency limits. */
363 SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT = 0x1000,
364 /** Sound pressure level measurement is S-weighted (1s) in the
366 SR_MQFLAG_SPL_TIME_WEIGHT_S = 0x2000,
367 /** Sound pressure level measurement is F-weighted (125ms) in the
369 SR_MQFLAG_SPL_TIME_WEIGHT_F = 0x4000,
370 /** Sound pressure level is time-averaged (LAT), also known as
371 * Equivalent Continuous A-weighted Sound Level (LEQ). */
372 SR_MQFLAG_SPL_LAT = 0x8000,
373 /** Sound pressure level represented as a percentage of measurements
374 * that were over a preset alarm level. */
375 SR_MQFLAG_SPL_PCT_OVER_ALARM = 0x10000,
376 /** Time is duration (as opposed to epoch, ...). */
377 SR_MQFLAG_DURATION = 0x20000,
378 /** Device is in "avg" mode, averaging upon each new value. */
379 SR_MQFLAG_AVG = 0x40000,
380 /** Reference value shown. */
381 SR_MQFLAG_REFERENCE = 0x80000,
382 /** Unstable value (hasn't settled yet). */
383 SR_MQFLAG_UNSTABLE = 0x100000,
384 /** Measurement is four wire (e.g. Kelvin connection). */
385 SR_MQFLAG_FOUR_WIRE = 0x200000,
388 * Update mq_strings[] (analog.c) and fancyprint() (output/analog.c)
393 enum sr_trigger_matches {
403 /** The representation of a trigger, consisting of one or more stages
404 * containing one or more matches on a channel.
407 /** A name for this trigger. This may be NULL if none is needed. */
409 /** List of pointers to struct sr_trigger_stage. */
413 /** A trigger stage. */
414 struct sr_trigger_stage {
417 /** List of pointers to struct sr_trigger_match. */
421 /** A channel to match and what to match it on. */
422 struct sr_trigger_match {
423 /** The channel to trigger on. */
424 struct sr_channel *channel;
425 /** The trigger match to use.
426 * For logic channels, only the following matches may be used:
433 * For analog channels, only these matches may be used:
441 /** If the trigger match is one of SR_TRIGGER_OVER or SR_TRIGGER_UNDER,
442 * this contains the value to compare against. */
448 * Opaque structure representing a libsigrok context.
450 * None of the fields of this structure are meant to be accessed directly.
452 * @see sr_init(), sr_exit().
458 * Opaque structure representing a libsigrok session.
460 * None of the fields of this structure are meant to be accessed directly.
462 * @see sr_session_new(), sr_session_destroy().
467 /** Numerator of the rational number. */
469 /** Denominator of the rational number. */
473 /** Packet in a sigrok data feed. */
474 struct sr_datafeed_packet {
479 /** Header of a sigrok data feed. */
480 struct sr_datafeed_header {
482 struct timeval starttime;
485 /** Datafeed payload for type SR_DF_META. */
486 struct sr_datafeed_meta {
490 /** Logic datafeed payload for type SR_DF_LOGIC. */
491 struct sr_datafeed_logic {
497 /** Analog datafeed payload for type SR_DF_ANALOG. */
498 struct sr_datafeed_analog {
500 uint32_t num_samples;
501 struct sr_analog_encoding *encoding;
502 struct sr_analog_meaning *meaning;
503 struct sr_analog_spec *spec;
506 struct sr_analog_encoding {
510 gboolean is_bigendian;
512 * Number of significant digits after the decimal point if positive,
513 * or number of non-significant digits before the decimal point if
514 * negative (refers to the value we actually read on the wire).
517 gboolean is_digits_decimal;
518 struct sr_rational scale;
519 struct sr_rational offset;
522 struct sr_analog_meaning {
525 enum sr_mqflag mqflags;
529 struct sr_analog_spec {
531 * Number of significant digits after the decimal point if positive,
532 * or number of non-significant digits before the decimal point if
533 * negative (refers to vendor specifications/datasheet or actual
539 /** Generic option struct used by various subsystems. */
541 /* Short name suitable for commandline usage, [a-z0-9-]. */
543 /* Short name suitable for GUI usage, can contain UTF-8. */
545 /* Description of the option, in a sentence. */
547 /* Default value for this option. */
549 /* List of possible values, if this is an option with few values. */
556 enum sr_resource_type {
557 SR_RESOURCE_FIRMWARE = 1,
560 /** Resource descriptor.
564 /** Size of resource in bytes; set by resource open callback. */
566 /** File handle or equivalent; set by resource open callback. */
568 /** Resource type (SR_RESOURCE_FIRMWARE, ...) */
572 /** Output module flags. */
573 enum sr_output_flag {
574 /** If set, this output module writes the output itself. */
575 SR_OUTPUT_INTERNAL_IO_HANDLING = 0x01,
579 struct sr_input_module;
581 struct sr_output_module;
583 struct sr_transform_module;
585 /** Constants for channel type. */
586 enum sr_channeltype {
587 /** Channel type is logic channel. */
588 SR_CHANNEL_LOGIC = 10000,
589 /** Channel type is analog channel. */
593 /** Information on single channel. */
595 /** The device this channel is attached to. */
596 struct sr_dev_inst *sdi;
597 /** The index of this channel, starting at 0. Logic channels will
598 * be encoded according to this index in SR_DF_LOGIC packets. */
600 /** Channel type (SR_CHANNEL_LOGIC, ...) */
602 /** Is this channel enabled? */
604 /** Name of channel. */
606 /** Private data for driver use. */
610 /** Structure for groups of channels that have common properties. */
611 struct sr_channel_group {
612 /** Name of the channel group. */
614 /** List of sr_channel structs of the channels belonging to this group. */
616 /** Private data for driver use. */
620 /** Used for setting or getting value of a config item. */
622 /** Config key like SR_CONF_CONN, etc. */
624 /** Key-specific data. */
634 /** Information about a key. */
636 /** Config key like SR_CONF_CONN, MQ value like SR_MQ_VOLTAGE, etc. */
638 /** Data type like SR_T_STRING, etc if applicable. */
640 /** Short, lowercase ID string, e.g. "serialcomm", "voltage". */
642 /** Full capitalized name, e.g. "Serial communication". */
644 /** Verbose description (unused currently). */
645 const char *description;
648 /** Configuration capabilities. */
650 /** Value can be read. */
651 SR_CONF_GET = (1 << 31),
652 /** Value can be written. */
653 SR_CONF_SET = (1 << 30),
654 /** Possible values can be enumerated. */
655 SR_CONF_LIST = (1 << 29),
658 /** Configuration keys */
660 /*--- Device classes ------------------------------------------------*/
662 /** The device can act as logic analyzer. */
663 SR_CONF_LOGIC_ANALYZER = 10000,
665 /** The device can act as an oscilloscope. */
666 SR_CONF_OSCILLOSCOPE,
668 /** The device can act as a multimeter. */
671 /** The device is a demo device. */
674 /** The device can act as a sound level meter. */
675 SR_CONF_SOUNDLEVELMETER,
677 /** The device can measure temperature. */
680 /** The device can measure humidity. */
683 /** The device can measure energy consumption. */
686 /** The device can act as a signal demodulator. */
689 /** The device can act as a programmable power supply. */
690 SR_CONF_POWER_SUPPLY,
692 /** The device can act as an LCR meter. */
695 /** The device can act as an electronic load. */
696 SR_CONF_ELECTRONIC_LOAD,
698 /** The device can act as a scale. */
701 /* Update sr_key_info_config[] (hwdriver.c) upon changes! */
703 /*--- Driver scan options -------------------------------------------*/
706 * Specification on how to connect to a device.
708 * In combination with SR_CONF_SERIALCOMM, this is a serial port in
709 * the form which makes sense to the OS (e.g., /dev/ttyS0).
710 * Otherwise this specifies a USB device, either in the form of
711 * @verbatim <bus>.<address> @endverbatim (decimal, e.g. 1.65) or
712 * @verbatim <vendorid>.<productid> @endverbatim
713 * (hexadecimal, e.g. 1d6b.0001).
715 SR_CONF_CONN = 20000,
718 * Serial communication specification, in the form:
720 * @verbatim <baudrate>/<databits><parity><stopbits> @endverbatim
724 * The string may also be followed by one or more special settings,
725 * in the form "/key=value". Supported keys and their values are:
727 * rts 0,1 set the port's RTS pin to low or high
728 * dtr 0,1 set the port's DTR pin to low or high
729 * flow 0 no flow control
730 * 1 hardware-based (RTS/CTS) flow control
731 * 2 software-based (XON/XOFF) flow control
733 * This is always an optional parameter, since a driver typically
734 * knows the speed at which the device wants to communicate.
739 * Modbus slave address specification.
741 * This is always an optional parameter, since a driver typically
742 * knows the default slave address of the device.
746 /* Update sr_key_info_config[] (hwdriver.c) upon changes! */
748 /*--- Device (or channel group) configuration -----------------------*/
750 /** The device supports setting its samplerate, in Hz. */
751 SR_CONF_SAMPLERATE = 30000,
753 /** The device supports setting a pre/post-trigger capture ratio. */
754 SR_CONF_CAPTURE_RATIO,
756 /** The device supports setting a pattern (pattern generator mode). */
757 SR_CONF_PATTERN_MODE,
759 /** The device supports run-length encoding (RLE). */
762 /** The device supports setting trigger slope. */
763 SR_CONF_TRIGGER_SLOPE,
765 /** The device supports averaging. */
769 * The device supports setting number of samples to be
774 /** Trigger source. */
775 SR_CONF_TRIGGER_SOURCE,
777 /** Horizontal trigger position. */
778 SR_CONF_HORIZ_TRIGGERPOS,
795 /** Trigger matches. */
796 SR_CONF_TRIGGER_MATCH,
798 /** The device supports setting its sample interval, in ms. */
799 SR_CONF_SAMPLE_INTERVAL,
801 /** Number of horizontal divisions, as related to SR_CONF_TIMEBASE. */
804 /** Number of vertical divisions, as related to SR_CONF_VDIV. */
807 /** Sound pressure level frequency weighting. */
808 SR_CONF_SPL_WEIGHT_FREQ,
810 /** Sound pressure level time weighting. */
811 SR_CONF_SPL_WEIGHT_TIME,
813 /** Sound pressure level measurement range. */
814 SR_CONF_SPL_MEASUREMENT_RANGE,
816 /** Max hold mode. */
819 /** Min hold mode. */
822 /** Logic low-high threshold range. */
823 SR_CONF_VOLTAGE_THRESHOLD,
825 /** The device supports using an external clock. */
826 SR_CONF_EXTERNAL_CLOCK,
829 * The device supports swapping channels. Typical this is between
830 * buffered and unbuffered channels.
834 /** Center frequency.
835 * The input signal is downmixed by this frequency before the ADC
836 * anti-aliasing filter.
838 SR_CONF_CENTER_FREQUENCY,
840 /** The device supports setting the number of logic channels. */
841 SR_CONF_NUM_LOGIC_CHANNELS,
843 /** The device supports setting the number of analog channels. */
844 SR_CONF_NUM_ANALOG_CHANNELS,
849 * @arg get: get measured voltage
854 * Maximum target voltage.
856 * @arg get: get target voltage
857 * @arg set: change target voltage
859 SR_CONF_VOLTAGE_TARGET,
864 * @arg get: get measured current
871 * @arg get: get current limit
872 * @arg set: change current limit
874 SR_CONF_CURRENT_LIMIT,
877 * Enabling/disabling channel.
879 * @arg get: @b true if currently enabled
880 * @arg set: enable/disable
885 * Channel configuration.
887 * @arg get: get current setting
888 * @arg set: change current setting
889 * @arg list: array of possible values
891 SR_CONF_CHANNEL_CONFIG,
894 * Over-voltage protection (OVP) feature
896 * @arg get: @b true if currently enabled
897 * @arg set: enable/disable
899 SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED,
902 * Over-voltage protection (OVP) active
904 * @arg get: @b true if device has activated OVP, i.e. the output voltage
905 * exceeds the over-voltage protection threshold.
907 SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE,
910 * Over-voltage protection (OVP) threshold
911 * @arg type: double (voltage)
912 * @arg get: get current threshold
913 * @arg set: set new threshold
915 SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD,
918 * Over-current protection (OCP) feature
920 * @arg get: @b true if currently enabled
921 * @arg set: enable/disable
923 SR_CONF_OVER_CURRENT_PROTECTION_ENABLED,
926 * Over-current protection (OCP) active
928 * @arg get: @b true if device has activated OCP, i.e. the current current
929 * exceeds the over-current protection threshold.
931 SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE,
934 * Over-current protection (OCP) threshold
935 * @arg type: double (current)
936 * @arg get: get current threshold
937 * @arg set: set new threshold
939 SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD,
941 /** Choice of clock edge for external clock ("r" or "f"). */
944 /** Amplitude of a source without strictly-defined MQ. */
949 * get: "CV", "CC" or "UR", denoting constant voltage, constant current
954 /** Over-temperature protection (OTP) */
955 SR_CONF_OVER_TEMPERATURE_PROTECTION,
957 /** Output frequency in Hz. */
958 SR_CONF_OUTPUT_FREQUENCY,
960 /** Output frequency target in Hz. */
961 SR_CONF_OUTPUT_FREQUENCY_TARGET,
963 /** Measured quantity. */
964 SR_CONF_MEASURED_QUANTITY,
966 /** Equivalent circuit model. */
967 SR_CONF_EQUIV_CIRCUIT_MODEL,
969 /** Over-temperature protection (OTP) active. */
970 SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE,
972 /** Under-voltage condition. */
973 SR_CONF_UNDER_VOLTAGE_CONDITION,
975 /** Under-voltage condition active. */
976 SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE,
978 /** Trigger level. */
979 SR_CONF_TRIGGER_LEVEL,
981 /* Update sr_key_info_config[] (hwdriver.c) upon changes! */
983 /*--- Special stuff -------------------------------------------------*/
985 /** Session filename. */
986 SR_CONF_SESSIONFILE = 40000,
988 /** The device supports specifying a capturefile to inject. */
991 /** The device supports specifying the capturefile unit size. */
992 SR_CONF_CAPTURE_UNITSIZE,
994 /** Power off the device. */
998 * Data source for acquisition. If not present, acquisition from
999 * the device is always "live", i.e. acquisition starts when the
1000 * frontend asks and the results are sent out as soon as possible.
1002 * If present, it indicates that either the device has no live
1003 * acquisition capability (for example a pure data logger), or
1004 * there is a choice. sr_config_list() returns those choices.
1006 * In any case if a device has live acquisition capabilities, it
1007 * is always the default.
1009 SR_CONF_DATA_SOURCE,
1011 /** The device supports setting a probe factor. */
1012 SR_CONF_PROBE_FACTOR,
1014 /** Number of powerline cycles for ADC integration time. */
1015 SR_CONF_ADC_POWERLINE_CYCLES,
1017 /* Update sr_key_info_config[] (hwdriver.c) upon changes! */
1019 /*--- Acquisition modes, sample limiting ----------------------------*/
1022 * The device supports setting a sample time limit (how long
1023 * the sample acquisition should run, in ms).
1025 SR_CONF_LIMIT_MSEC = 50000,
1028 * The device supports setting a sample number limit (how many
1029 * samples should be acquired).
1031 SR_CONF_LIMIT_SAMPLES,
1034 * The device supports setting a frame limit (how many
1035 * frames should be acquired).
1037 SR_CONF_LIMIT_FRAMES,
1040 * The device supports continuous sampling. Neither a time limit
1041 * nor a sample number limit has to be supplied, it will just acquire
1042 * samples continuously, until explicitly stopped by a certain command.
1046 /** The device has internal storage, into which data is logged. This
1047 * starts or stops the internal logging. */
1050 /** Device mode for multi-function devices. */
1051 SR_CONF_DEVICE_MODE,
1053 /** Self test mode. */
1056 /* Update sr_key_info_config[] (hwdriver.c) upon changes! */
1060 * Opaque structure representing a libsigrok device instance.
1062 * None of the fields of this structure are meant to be accessed directly.
1066 /** Types of device instance, struct sr_dev_inst.type */
1067 enum sr_dev_inst_type {
1068 /** Device instance type for USB devices. */
1069 SR_INST_USB = 10000,
1070 /** Device instance type for serial port devices. */
1072 /** Device instance type for SCPI devices. */
1074 /** Device-instance type for user-created "devices". */
1076 /** Device instance type for Modbus devices. */
1080 /** Device instance status, struct sr_dev_inst.status */
1081 enum sr_dev_inst_status {
1082 /** The device instance was not found. */
1083 SR_ST_NOT_FOUND = 10000,
1084 /** The device instance was found, but is still booting. */
1086 /** The device instance is live, but not in use. */
1088 /** The device instance is actively in use in a session. */
1090 /** The device is winding down its session. */
1094 /** Device driver data. See also http://sigrok.org/wiki/Hardware_driver_API . */
1095 struct sr_dev_driver {
1096 /* Driver-specific */
1097 /** Driver name. Lowercase a-z, 0-9 and dashes (-) only. */
1099 /** Long name. Verbose driver name shown to user. */
1100 const char *longname;
1101 /** API version (currently 1). */
1103 /** Called when driver is loaded, e.g. program startup. */
1104 int (*init) (struct sr_dev_driver *driver, struct sr_context *sr_ctx);
1105 /** Called before driver is unloaded.
1106 * Driver must free all resources held by it. */
1107 int (*cleanup) (const struct sr_dev_driver *driver);
1108 /** Scan for devices. Driver should do all initialisation required.
1109 * Can be called several times, e.g. with different port options.
1110 * @retval NULL Error or no devices found.
1111 * @retval other GSList of a struct sr_dev_inst for each device.
1112 * Must be freed by caller!
1114 GSList *(*scan) (struct sr_dev_driver *driver, GSList *options);
1115 /** Get list of device instances the driver knows about.
1116 * @returns NULL or GSList of a struct sr_dev_inst for each device.
1117 * Must not be freed by caller!
1119 GSList *(*dev_list) (const struct sr_dev_driver *driver);
1120 /** Clear list of devices the driver knows about. */
1121 int (*dev_clear) (const struct sr_dev_driver *driver);
1122 /** Query value of a configuration key in driver or given device instance.
1123 * @see sr_config_get().
1125 int (*config_get) (uint32_t key, GVariant **data,
1126 const struct sr_dev_inst *sdi,
1127 const struct sr_channel_group *cg);
1128 /** Set value of a configuration key in driver or a given device instance.
1129 * @see sr_config_set(). */
1130 int (*config_set) (uint32_t key, GVariant *data,
1131 const struct sr_dev_inst *sdi,
1132 const struct sr_channel_group *cg);
1133 /** Channel status change.
1134 * @see sr_dev_channel_enable(). */
1135 int (*config_channel_set) (const struct sr_dev_inst *sdi,
1136 struct sr_channel *ch, unsigned int changes);
1137 /** Apply configuration settings to the device hardware.
1138 * @see sr_config_commit().*/
1139 int (*config_commit) (const struct sr_dev_inst *sdi);
1140 /** List all possible values for a configuration key in a device instance.
1141 * @see sr_config_list().
1143 int (*config_list) (uint32_t key, GVariant **data,
1144 const struct sr_dev_inst *sdi,
1145 const struct sr_channel_group *cg);
1147 /* Device-specific */
1149 int (*dev_open) (struct sr_dev_inst *sdi);
1151 int (*dev_close) (struct sr_dev_inst *sdi);
1152 /** Begin data acquisition on the specified device. */
1153 int (*dev_acquisition_start) (const struct sr_dev_inst *sdi);
1154 /** End data acquisition on the specified device. */
1155 int (*dev_acquisition_stop) (struct sr_dev_inst *sdi);
1158 /** Device driver context, considered private. Initialized by init(). */
1162 /** Serial port descriptor. */
1163 struct sr_serial_port {
1164 /** The OS dependent name of the serial port. */
1166 /** An end user friendly description for the serial port. */
1170 #include <libsigrok/proto.h>
1171 #include <libsigrok/version.h>