[libsigrok.git] / sigrok.h.in

/*
 * This file is part of the sigrok project.
 *
 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef LIBSIGROK_SIGROK_H
#define LIBSIGROK_SIGROK_H

#include <stdio.h>
#include <sys/time.h>
#include <stdint.h>
#include <inttypes.h>
#include <glib.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Package version macros (can be used for conditional compilation).
 */

/** The libsigrok package 'major' version number. */
#define SR_PACKAGE_VERSION_MAJOR @SR_PACKAGE_VERSION_MAJOR@

/** The libsigrok package 'minor' version number. */
#define SR_PACKAGE_VERSION_MINOR @SR_PACKAGE_VERSION_MINOR@

/** The libsigrok package 'micro' version number. */
#define SR_PACKAGE_VERSION_MICRO @SR_PACKAGE_VERSION_MICRO@

/** The libsigrok package version ("major.minor.micro") as string. */
#define SR_PACKAGE_VERSION_STRING "@SR_PACKAGE_VERSION@"

/*
 * Library/libtool version macros (can be used for conditional compilation).
 */

/** The libsigrok libtool 'current' version number. */
#define SR_LIB_VERSION_CURRENT @SR_LIB_VERSION_CURRENT@

/** The libsigrok libtool 'revision' version number. */
#define SR_LIB_VERSION_REVISION @SR_LIB_VERSION_REVISION@

/** The libsigrok libtool 'age' version number. */
#define SR_LIB_VERSION_AGE @SR_LIB_VERSION_AGE@

/** The libsigrok libtool version ("current:revision:age") as string. */
#define SR_LIB_VERSION_STRING "@SR_LIB_VERSION@"

/*
 * Status/error codes returned by libsigrok functions.
 *
 * All possible return codes of libsigrok functions must be listed here.
 * Functions should never return hardcoded numbers as status, but rather
 * use these #defines instead. All error codes are negative numbers.
 *
 * The error codes are globally unique in libsigrok, i.e. if one of the
 * libsigrok functions returns a "malloc error" it must be exactly the same
 * return value as used by all other functions to indicate "malloc error".
 * There must be no functions which indicate two different errors via the
 * same return code.
 *
 * Also, for compatibility reasons, no defined return codes are ever removed
 * or reused for different #defines later. You can only add new #defines and
 * return codes, but never remove or redefine existing ones.
 */
#define SR_OK                 0 /* No error */
#define SR_ERR               -1 /* Generic/unspecified error */
#define SR_ERR_MALLOC        -2 /* Malloc/calloc/realloc error */
#define SR_ERR_ARG           -3 /* Function argument error */
#define SR_ERR_BUG           -4 /* Errors hinting at internal bugs */
#define SR_ERR_SAMPLERATE    -5 /* Incorrect samplerate */

#define SR_MAX_NUM_PROBES    64 /* Limited by uint64_t. */
#define SR_MAX_PROBENAME_LEN 32

/* Handy little macros */
#define SR_HZ(n)  (n)
#define SR_KHZ(n) ((n) * 1000)
#define SR_MHZ(n) ((n) * 1000000)
#define SR_GHZ(n) ((n) * 1000000000)

#define SR_HZ_TO_NS(n) (1000000000 / (n))

/* libsigrok loglevels. */
#define SR_LOG_NONE           0 /**< Output no messages at all. */
#define SR_LOG_ERR            1 /**< Output error messages. */
#define SR_LOG_WARN           2 /**< Output warnings. */
#define SR_LOG_INFO           3 /**< Output informational messages. */
#define SR_LOG_DBG            4 /**< Output debug messages. */
#define SR_LOG_SPEW           5 /**< Output very noisy debug messages. */

/*
 * Use SR_API to mark public API symbols, and SR_PRIV for private symbols.
 *
 * Variables and functions marked 'static' are private already and don't
 * need SR_PRIV. However, functions which are not static (because they need
 * to be used in other libsigrok-internal files) but are also not meant to
 * be part of the public libsigrok API, must use SR_PRIV.
 *
 * This uses the 'visibility' feature of gcc (requires gcc >= 4.0).
 *
 * This feature is not available on MinGW/Windows, as it is a feature of
 * ELF files and MinGW/Windows uses PE files.
 *
 * Details: http://gcc.gnu.org/wiki/Visibility
 */

/* Marks public libsigrok API symbols. */
#ifndef _WIN32
#define SR_API __attribute__((visibility("default")))
#else
#define SR_API
#endif

/* Marks private, non-public libsigrok symbols (not part of the API). */
#ifndef _WIN32
#define SR_PRIV __attribute__((visibility("hidden")))
#else
#define SR_PRIV
#endif

typedef int (*sr_receive_data_callback_t)(int fd, int revents, void *cb_data);

/* Data types used by hardware drivers for dev_config_set() */
enum {
	SR_T_UINT64,
	SR_T_CHAR,
	SR_T_BOOL,
};

/* sr_datafeed_packet.type values */
enum {
	SR_DF_HEADER,
	SR_DF_END,
	SR_DF_TRIGGER,
	SR_DF_LOGIC,
	SR_DF_META_LOGIC,
	SR_DF_ANALOG,
	SR_DF_META_ANALOG,
};

struct sr_datafeed_packet {
	uint16_t type;
	void *payload;
};

struct sr_datafeed_header {
	int feed_version;
	struct timeval starttime;
};

struct sr_datafeed_meta_logic {
	int num_probes;
	uint64_t samplerate;
};

struct sr_datafeed_logic {
	uint64_t length;
	uint16_t unitsize;
	void *data;
};

struct sr_datafeed_meta_analog {
	int num_probes;
};

struct sr_datafeed_analog {
	int num_samples;
	float *data;
};

struct sr_input {
	struct sr_input_format *format;
	char *param;
	struct sr_dev *vdev;
};

struct sr_input_format {
	char *id;
	char *description;
	int (*format_match) (const char *filename);
	int (*init) (struct sr_input *in);
	int (*loadfile) (struct sr_input *in, const char *filename);
};

struct sr_output {
	struct sr_output_format *format;
	struct sr_dev *dev;
	char *param;
	void *internal;
};

struct sr_output_format {
	char *id;
	char *description;
	int df_type;
	int (*init) (struct sr_output *o);
	int (*data) (struct sr_output *o, const uint8_t *data_in,
		     uint64_t length_in, uint8_t **data_out,
		     uint64_t *length_out);
	int (*event) (struct sr_output *o, int event_type, uint8_t **data_out,
		      uint64_t *length_out);
};

struct sr_datastore {
	/* Size in bytes of the number of units stored in this datastore */
	int ds_unitsize;
	unsigned int num_units; /* TODO: uint64_t */
	GSList *chunklist;
};

/*
 * This represents a generic device connected to the system.
 * For device-specific information, ask the driver. The driver_index refers
 * to the device index within that driver; it may be handling more than one
 * device. All relevant driver calls take a dev_index parameter for this.
 */
struct sr_dev {
	/* Which driver handles this device */
	struct sr_dev_driver *driver;
	/* A driver may handle multiple devices of the same type */
	int driver_index;
	/* List of struct sr_probe* */
	GSList *probes;
	/* Data acquired by this device, if any */
	struct sr_datastore *datastore;
};

enum {
	SR_PROBE_TYPE_LOGIC,
};

struct sr_probe {
	int index;
	int type;
	gboolean enabled;
	char *name;
	char *trigger;
};

/* Hardware driver capabilities */
enum {
	SR_HWCAP_DUMMY = 0, /* Used to terminate lists. Must be 0! */

	/*--- Device classes ------------------------------------------------*/

	/** The device can act as logic analyzer. */
	SR_HWCAP_LOGIC_ANALYZER,

	/** The device can act as an oscilloscope. */
	SR_HWCAP_OSCILLOSCOPE,

	/*--- Device types --------------------------------------------------*/

	/** The device is demo device. */
	SR_HWCAP_DEMO_DEV,

	/*--- Device options ------------------------------------------------*/

	/** The device supports setting/changing its samplerate. */
	SR_HWCAP_SAMPLERATE,

	/* TODO: Better description? Rename to PROBE_AND_TRIGGER_CONFIG? */
	/** The device supports setting a probe mask. */
	SR_HWCAP_PROBECONFIG,

	/** The device supports setting a pre/post-trigger capture ratio. */
	SR_HWCAP_CAPTURE_RATIO,

	/* TODO? */
	/** The device supports setting a pattern (pattern generator mode). */
	SR_HWCAP_PATTERN_MODE,

	/** The device supports Run Length Encoding. */
	SR_HWCAP_RLE,

	/** The device supports setting trigger slope. */
	SR_HWCAP_TRIGGERSLOPE,

	/*--- Special stuff -------------------------------------------------*/

	/* TODO: Better description. */
	/** The device supports specifying a capturefile to inject. */
	SR_HWCAP_CAPTUREFILE,

	/* TODO: Better description. */
	/** The device supports specifying the capturefile unit size. */
	SR_HWCAP_CAPTURE_UNITSIZE,

	/* TODO: Better description. */
	/** The device supports setting the number of probes. */
	SR_HWCAP_CAPTURE_NUM_PROBES,

	/*--- Acquisition modes ---------------------------------------------*/

	/**
	 * The device supports setting a sample time limit, i.e. how long the
	 * sample acquisition should run (in ms).
	 */
	SR_HWCAP_LIMIT_MSEC,

	/**
	 * The device supports setting a sample number limit, i.e. how many
	 * samples should be acquired.
	 */
	SR_HWCAP_LIMIT_SAMPLES,

	/**
	 * The device supports continuous sampling, i.e. neither a time limit
	 * nor a sample number limit has to be supplied, it will just acquire
	 * samples continuously, until explicitly stopped by a certain command.
	 */
	SR_HWCAP_CONTINUOUS,

};

struct sr_hwcap_option {
	int hwcap;
	int type;
	char *description;
	char *shortname;
};

struct sr_dev_inst {
	int index;
	int status;
	int inst_type;
	char *vendor;
	char *model;
	char *version;
	void *priv;
};

/* sr_dev_inst types */
enum {
	/** Device instance type for USB devices. */
	SR_INST_USB,
	/** Device instance type for serial port devices. */
	SR_INST_SERIAL,
};

/* Device instance status */
enum {
	SR_ST_NOT_FOUND,
	/* Found, but still booting */
	SR_ST_INITIALIZING,
	/* Live, but not in use */
	SR_ST_INACTIVE,
	/* Actively in use in a session */
	SR_ST_ACTIVE,
};

/*
 * TODO: This sucks, you just kinda have to "know" the returned type.
 * TODO: Need a DI to return the number of trigger stages supported.
 */

/* Device info IDs */
enum {
	/* struct sr_dev_inst for this specific device */
	SR_DI_INST,
	/* The number of probes connected to this device */
	SR_DI_NUM_PROBES,
	/* The probe names on this device */
	SR_DI_PROBE_NAMES,
	/* Samplerates supported by this device, (struct sr_samplerates) */
	SR_DI_SAMPLERATES,
	/* Types of trigger supported, out of "01crf" (char *) */
	SR_DI_TRIGGER_TYPES,
	/* The currently set samplerate in Hz (uint64_t) */
	SR_DI_CUR_SAMPLERATE,
	/* Supported patterns (in pattern generator mode) */
	SR_DI_PATTERNS,
};

/*
 * A device supports either a range of samplerates with steps of a given
 * granularity, or is limited to a set of defined samplerates. Use either
 * step or list, but not both.
 */
struct sr_samplerates {
	uint64_t low;
	uint64_t high;
	uint64_t step;
	uint64_t *list;
};

struct sr_dev_driver {
	/* Driver-specific */
	char *name;
	char *longname;
	int api_version;
	int (*init) (const char *devinfo);
	int (*cleanup) (void);

	/* Device-specific */
	int (*dev_open) (int dev_index);
	int (*dev_close) (int dev_index);
	void *(*dev_info_get) (int dev_index, int dev_info_id);
	int (*dev_status_get) (int dev_index);
	int *(*hwcap_get_all) (void);
	int (*dev_config_set) (int dev_index, int hwcap, void *value);
	int (*dev_acquisition_start) (int dev_index, void *session_dev_id);
	int (*dev_acquisition_stop) (int dev_index, void *session_dev_id);
};

struct sr_session {
	/* List of struct sr_dev* */
	GSList *devs;
	/* list of sr_receive_data_callback_t */
	GSList *datafeed_callbacks;
	GTimeVal starttime;
	gboolean running;
};

#include "sigrok-proto.h"

#ifdef __cplusplus
}
#endif

#endif
Commit	Line	Data
	1	/*
	2	* This file is part of the sigrok project.
	3	*
	4	* Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
	5	*
	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.
	10	*
	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.
	15	*
	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/>.
	18	*/
	19
	20	#ifndef LIBSIGROK_SIGROK_H
	21	#define LIBSIGROK_SIGROK_H
	22
	23	#include <stdio.h>
	24	#include <sys/time.h>
	25	#include <stdint.h>
	26	#include <inttypes.h>
	27	#include <glib.h>
	28
	29	#ifdef __cplusplus
	30	extern "C" {
	31	#endif
	32
	33	/*
	34	* Package version macros (can be used for conditional compilation).
	35	*/
	36
	37	/** The libsigrok package 'major' version number. */
	38	#define SR_PACKAGE_VERSION_MAJOR @SR_PACKAGE_VERSION_MAJOR@
	39
	40	/** The libsigrok package 'minor' version number. */
	41	#define SR_PACKAGE_VERSION_MINOR @SR_PACKAGE_VERSION_MINOR@
	42
	43	/** The libsigrok package 'micro' version number. */
	44	#define SR_PACKAGE_VERSION_MICRO @SR_PACKAGE_VERSION_MICRO@
	45
	46	/** The libsigrok package version ("major.minor.micro") as string. */
	47	#define SR_PACKAGE_VERSION_STRING "@SR_PACKAGE_VERSION@"
	48
	49	/*
	50	* Library/libtool version macros (can be used for conditional compilation).
	51	*/
	52
	53	/** The libsigrok libtool 'current' version number. */
	54	#define SR_LIB_VERSION_CURRENT @SR_LIB_VERSION_CURRENT@
	55
	56	/** The libsigrok libtool 'revision' version number. */
	57	#define SR_LIB_VERSION_REVISION @SR_LIB_VERSION_REVISION@
	58
	59	/** The libsigrok libtool 'age' version number. */
	60	#define SR_LIB_VERSION_AGE @SR_LIB_VERSION_AGE@
	61
	62	/** The libsigrok libtool version ("current:revision:age") as string. */
	63	#define SR_LIB_VERSION_STRING "@SR_LIB_VERSION@"
	64
	65	/*
	66	* Status/error codes returned by libsigrok functions.
	67	*
	68	* All possible return codes of libsigrok functions must be listed here.
	69	* Functions should never return hardcoded numbers as status, but rather
	70	* use these #defines instead. All error codes are negative numbers.
	71	*
	72	* The error codes are globally unique in libsigrok, i.e. if one of the
	73	* libsigrok functions returns a "malloc error" it must be exactly the same
	74	* return value as used by all other functions to indicate "malloc error".
	75	* There must be no functions which indicate two different errors via the
	76	* same return code.
	77	*
	78	* Also, for compatibility reasons, no defined return codes are ever removed
	79	* or reused for different #defines later. You can only add new #defines and
	80	* return codes, but never remove or redefine existing ones.
	81	*/
	82	#define SR_OK 0 /* No error */
	83	#define SR_ERR -1 /* Generic/unspecified error */
	84	#define SR_ERR_MALLOC -2 /* Malloc/calloc/realloc error */
	85	#define SR_ERR_ARG -3 /* Function argument error */
	86	#define SR_ERR_BUG -4 /* Errors hinting at internal bugs */
	87	#define SR_ERR_SAMPLERATE -5 /* Incorrect samplerate */
	88
	89	#define SR_MAX_NUM_PROBES 64 /* Limited by uint64_t. */
	90	#define SR_MAX_PROBENAME_LEN 32
	91
	92	/* Handy little macros */
	93	#define SR_HZ(n) (n)
	94	#define SR_KHZ(n) ((n) * 1000)
	95	#define SR_MHZ(n) ((n) * 1000000)
	96	#define SR_GHZ(n) ((n) * 1000000000)
	97
	98	#define SR_HZ_TO_NS(n) (1000000000 / (n))
	99
	100	/* libsigrok loglevels. */
	101	#define SR_LOG_NONE 0 /*< Output no messages at all. /
	102	#define SR_LOG_ERR 1 /*< Output error messages. /
	103	#define SR_LOG_WARN 2 /*< Output warnings. /
	104	#define SR_LOG_INFO 3 /*< Output informational messages. /
	105	#define SR_LOG_DBG 4 /*< Output debug messages. /
	106	#define SR_LOG_SPEW 5 /*< Output very noisy debug messages. /
	107
	108	/*
	109	* Use SR_API to mark public API symbols, and SR_PRIV for private symbols.
	110	*
	111	* Variables and functions marked 'static' are private already and don't
	112	* need SR_PRIV. However, functions which are not static (because they need
	113	* to be used in other libsigrok-internal files) but are also not meant to
	114	* be part of the public libsigrok API, must use SR_PRIV.
	115	*
	116	* This uses the 'visibility' feature of gcc (requires gcc >= 4.0).
	117	*
	118	* This feature is not available on MinGW/Windows, as it is a feature of
	119	* ELF files and MinGW/Windows uses PE files.
	120	*
	121	* Details: http://gcc.gnu.org/wiki/Visibility
	122	*/
	123
	124	/* Marks public libsigrok API symbols. */
	125	#ifndef _WIN32
	126	#define SR_API __attribute__((visibility("default")))
	127	#else
	128	#define SR_API
	129	#endif
	130
	131	/* Marks private, non-public libsigrok symbols (not part of the API). */
	132	#ifndef _WIN32
	133	#define SR_PRIV __attribute__((visibility("hidden")))
	134	#else
	135	#define SR_PRIV
	136	#endif
	137
	138	typedef int (sr_receive_data_callback_t)(int fd, int revents, void cb_data);
	139
	140	/* Data types used by hardware drivers for dev_config_set() */
	141	enum {
	142	SR_T_UINT64,
	143	SR_T_CHAR,
	144	SR_T_BOOL,
	145	};
	146
	147	/* sr_datafeed_packet.type values */
	148	enum {
	149	SR_DF_HEADER,
	150	SR_DF_END,
	151	SR_DF_TRIGGER,
	152	SR_DF_LOGIC,
	153	SR_DF_META_LOGIC,
	154	SR_DF_ANALOG,
	155	SR_DF_META_ANALOG,
	156	};
	157
	158	struct sr_datafeed_packet {
	159	uint16_t type;
	160	void *payload;
	161	};
	162
	163	struct sr_datafeed_header {
	164	int feed_version;
	165	struct timeval starttime;
	166	};
	167
	168	struct sr_datafeed_meta_logic {
	169	int num_probes;
	170	uint64_t samplerate;
	171	};
	172
	173	struct sr_datafeed_logic {
	174	uint64_t length;
	175	uint16_t unitsize;
	176	void *data;
	177	};
	178
	179	struct sr_datafeed_meta_analog {
	180	int num_probes;
	181	};
	182
	183	struct sr_datafeed_analog {
	184	int num_samples;
	185	float *data;
	186	};
	187
	188	struct sr_input {
	189	struct sr_input_format *format;
	190	char *param;
	191	struct sr_dev *vdev;
	192	};
	193
	194	struct sr_input_format {
	195	char *id;
	196	char *description;
	197	int (format_match) (const char filename);
	198	int (init) (struct sr_input in);
	199	int (loadfile) (struct sr_input in, const char *filename);
	200	};
	201
	202	struct sr_output {
	203	struct sr_output_format *format;
	204	struct sr_dev *dev;
	205	char *param;
	206	void *internal;
	207	};
	208
	209	struct sr_output_format {
	210	char *id;
	211	char *description;
	212	int df_type;
	213	int (init) (struct sr_output o);
	214	int (data) (struct sr_output o, const uint8_t *data_in,
	215	uint64_t length_in, uint8_t **data_out,
	216	uint64_t *length_out);
	217	int (event) (struct sr_output o, int event_type, uint8_t **data_out,
	218	uint64_t *length_out);
	219	};
	220
	221	struct sr_datastore {
	222	/* Size in bytes of the number of units stored in this datastore */
	223	int ds_unitsize;
	224	unsigned int num_units; /* TODO: uint64_t */
	225	GSList *chunklist;
	226	};
	227
	228	/*
	229	* This represents a generic device connected to the system.
	230	* For device-specific information, ask the driver. The driver_index refers
	231	* to the device index within that driver; it may be handling more than one
	232	* device. All relevant driver calls take a dev_index parameter for this.
	233	*/
	234	struct sr_dev {
	235	/* Which driver handles this device */
	236	struct sr_dev_driver *driver;
	237	/* A driver may handle multiple devices of the same type */
	238	int driver_index;
	239	/* List of struct sr_probe* */
	240	GSList *probes;
	241	/* Data acquired by this device, if any */
	242	struct sr_datastore *datastore;
	243	};
	244
	245	enum {
	246	SR_PROBE_TYPE_LOGIC,
	247	};
	248
	249	struct sr_probe {
	250	int index;
	251	int type;
	252	gboolean enabled;
	253	char *name;
	254	char *trigger;
	255	};
	256
	257	/* Hardware driver capabilities */
	258	enum {
	259	SR_HWCAP_DUMMY = 0, /* Used to terminate lists. Must be 0! */
	260
	261	/--- Device classes ------------------------------------------------/
	262
	263	/** The device can act as logic analyzer. */
	264	SR_HWCAP_LOGIC_ANALYZER,
	265
	266	/** The device can act as an oscilloscope. */
	267	SR_HWCAP_OSCILLOSCOPE,
	268
	269	/--- Device types --------------------------------------------------/
	270
	271	/** The device is demo device. */
	272	SR_HWCAP_DEMO_DEV,
	273
	274	/--- Device options ------------------------------------------------/
	275
	276	/** The device supports setting/changing its samplerate. */
	277	SR_HWCAP_SAMPLERATE,
	278
	279	/* TODO: Better description? Rename to PROBE_AND_TRIGGER_CONFIG? */
	280	/** The device supports setting a probe mask. */
	281	SR_HWCAP_PROBECONFIG,
	282
	283	/** The device supports setting a pre/post-trigger capture ratio. */
	284	SR_HWCAP_CAPTURE_RATIO,
	285
	286	/* TODO? */
	287	/** The device supports setting a pattern (pattern generator mode). */
	288	SR_HWCAP_PATTERN_MODE,
	289
	290	/** The device supports Run Length Encoding. */
	291	SR_HWCAP_RLE,
	292
	293	/** The device supports setting trigger slope. */
	294	SR_HWCAP_TRIGGERSLOPE,
	295
	296	/--- Special stuff -------------------------------------------------/
	297
	298	/* TODO: Better description. */
	299	/** The device supports specifying a capturefile to inject. */
	300	SR_HWCAP_CAPTUREFILE,
	301
	302	/* TODO: Better description. */
	303	/** The device supports specifying the capturefile unit size. */
	304	SR_HWCAP_CAPTURE_UNITSIZE,
	305
	306	/* TODO: Better description. */
	307	/** The device supports setting the number of probes. */
	308	SR_HWCAP_CAPTURE_NUM_PROBES,
	309
	310	/--- Acquisition modes ---------------------------------------------/
	311
	312	/**
	313	* The device supports setting a sample time limit, i.e. how long the
	314	* sample acquisition should run (in ms).
	315	*/
	316	SR_HWCAP_LIMIT_MSEC,
	317
	318	/**
	319	* The device supports setting a sample number limit, i.e. how many
	320	* samples should be acquired.
	321	*/
	322	SR_HWCAP_LIMIT_SAMPLES,
	323
	324	/**
	325	* The device supports continuous sampling, i.e. neither a time limit
	326	* nor a sample number limit has to be supplied, it will just acquire
	327	* samples continuously, until explicitly stopped by a certain command.
	328	*/
	329	SR_HWCAP_CONTINUOUS,
	330
	331	};
	332
	333	struct sr_hwcap_option {
	334	int hwcap;
	335	int type;
	336	char *description;
	337	char *shortname;
	338	};
	339
	340	struct sr_dev_inst {
	341	int index;
	342	int status;
	343	int inst_type;
	344	char *vendor;
	345	char *model;
	346	char *version;
	347	void *priv;
	348	};
	349
	350	/* sr_dev_inst types */
	351	enum {
	352	/** Device instance type for USB devices. */
	353	SR_INST_USB,
	354	/** Device instance type for serial port devices. */
	355	SR_INST_SERIAL,
	356	};
	357
	358	/* Device instance status */
	359	enum {
	360	SR_ST_NOT_FOUND,
	361	/* Found, but still booting */
	362	SR_ST_INITIALIZING,
	363	/* Live, but not in use */
	364	SR_ST_INACTIVE,
	365	/* Actively in use in a session */
	366	SR_ST_ACTIVE,
	367	};
	368
	369	/*
	370	* TODO: This sucks, you just kinda have to "know" the returned type.
	371	* TODO: Need a DI to return the number of trigger stages supported.
	372	*/
	373
	374	/* Device info IDs */
	375	enum {
	376	/* struct sr_dev_inst for this specific device */
	377	SR_DI_INST,
	378	/* The number of probes connected to this device */
	379	SR_DI_NUM_PROBES,
	380	/* The probe names on this device */
	381	SR_DI_PROBE_NAMES,
	382	/* Samplerates supported by this device, (struct sr_samplerates) */
	383	SR_DI_SAMPLERATES,
	384	/* Types of trigger supported, out of "01crf" (char ) /
	385	SR_DI_TRIGGER_TYPES,
	386	/* The currently set samplerate in Hz (uint64_t) */
	387	SR_DI_CUR_SAMPLERATE,
	388	/* Supported patterns (in pattern generator mode) */
	389	SR_DI_PATTERNS,
	390	};
	391
	392	/*
	393	* A device supports either a range of samplerates with steps of a given
	394	* granularity, or is limited to a set of defined samplerates. Use either
	395	* step or list, but not both.
	396	*/
	397	struct sr_samplerates {
	398	uint64_t low;
	399	uint64_t high;
	400	uint64_t step;
	401	uint64_t *list;
	402	};
	403
	404	struct sr_dev_driver {
	405	/* Driver-specific */
	406	char *name;
	407	char *longname;
	408	int api_version;
	409	int (init) (const char devinfo);
	410	int (*cleanup) (void);
	411
	412	/* Device-specific */
	413	int (*dev_open) (int dev_index);
	414	int (*dev_close) (int dev_index);
	415	void (dev_info_get) (int dev_index, int dev_info_id);
	416	int (*dev_status_get) (int dev_index);
	417	int (hwcap_get_all) (void);
	418	int (dev_config_set) (int dev_index, int hwcap, void value);
	419	int (dev_acquisition_start) (int dev_index, void session_dev_id);
	420	int (dev_acquisition_stop) (int dev_index, void session_dev_id);
	421	};
	422
	423	struct sr_session {
	424	/* List of struct sr_dev* */
	425	GSList *devs;
	426	/* list of sr_receive_data_callback_t */
	427	GSList *datafeed_callbacks;
	428	GTimeVal starttime;
	429	gboolean running;
	430	};
	431
	432	#include "sigrok-proto.h"
	433
	434	#ifdef __cplusplus
	435	}
	436	#endif
	437
	438	#endif