[libsigrok.git] / include / libsigrok / proto.h

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 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_PROTO_H
#define LIBSIGROK_PROTO_H

/**
 * @file
 *
 * Header file containing API function prototypes.
 */

/*--- analog.c --------------------------------------------------------------*/

SR_API int sr_analog_to_float(const struct sr_datafeed_analog *analog,
		float *buf);
SR_API const char *sr_analog_si_prefix(float *value, int *digits);
SR_API gboolean sr_analog_si_prefix_friendly(enum sr_unit unit);
SR_API int sr_analog_unit_to_string(const struct sr_datafeed_analog *analog,
		char **result);
SR_API void sr_rational_set(struct sr_rational *r, int64_t p, uint64_t q);
SR_API int sr_rational_eq(const struct sr_rational *a, const struct sr_rational *b);
SR_API int sr_rational_mult(struct sr_rational *res, const struct sr_rational *a,
		const struct sr_rational *b);
SR_API int sr_rational_div(struct sr_rational *res, const struct sr_rational *num,
		const struct sr_rational *div);

/*--- backend.c -------------------------------------------------------------*/

SR_API int sr_init(struct sr_context **ctx);
SR_API int sr_exit(struct sr_context *ctx);

/*--- log.c -----------------------------------------------------------------*/

typedef int (*sr_log_callback)(void *cb_data, int loglevel,
				const char *format, va_list args);

SR_API int sr_log_loglevel_set(int loglevel);
SR_API int sr_log_loglevel_get(void);
SR_API int sr_log_callback_set(sr_log_callback cb, void *cb_data);
SR_API int sr_log_callback_set_default(void);

/*--- device.c --------------------------------------------------------------*/

SR_API int sr_dev_channel_name_set(struct sr_channel *channel,
		const char *name);
SR_API int sr_dev_channel_enable(struct sr_channel *channel,
		gboolean state);
SR_API gboolean sr_dev_has_option(const struct sr_dev_inst *sdi, int key);
SR_API int sr_dev_config_capabilities_list(const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg, int key);
SR_API GArray *sr_dev_options(const struct sr_dev_driver *driver,
		const struct sr_dev_inst *sdi, const struct sr_channel_group *cg);
SR_API GSList *sr_dev_list(const struct sr_dev_driver *driver);
SR_API int sr_dev_clear(const struct sr_dev_driver *driver);
SR_API int sr_dev_open(struct sr_dev_inst *sdi);
SR_API int sr_dev_close(struct sr_dev_inst *sdi);

SR_API struct sr_dev_driver *sr_dev_inst_driver_get(const struct sr_dev_inst *sdi);
SR_API const char *sr_dev_inst_vendor_get(const struct sr_dev_inst *sdi);
SR_API const char *sr_dev_inst_model_get(const struct sr_dev_inst *sdi);
SR_API const char *sr_dev_inst_version_get(const struct sr_dev_inst *sdi);
SR_API const char *sr_dev_inst_sernum_get(const struct sr_dev_inst *sdi);
SR_API const char *sr_dev_inst_connid_get(const struct sr_dev_inst *sdi);
SR_API GSList *sr_dev_inst_channels_get(const struct sr_dev_inst *sdi);
SR_API GSList *sr_dev_inst_channel_groups_get(const struct sr_dev_inst *sdi);

SR_API struct sr_dev_inst *sr_dev_inst_user_new(const char *vendor,
		const char *model, const char *version);
SR_API int sr_dev_inst_channel_add(struct sr_dev_inst *sdi, int index, int type, const char *name);

/*--- hwdriver.c ------------------------------------------------------------*/

SR_API struct sr_dev_driver **sr_driver_list(const struct sr_context *ctx);
SR_API int sr_driver_init(struct sr_context *ctx,
		struct sr_dev_driver *driver);
SR_API GArray *sr_driver_scan_options_list(const struct sr_dev_driver *driver);
SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options);
SR_API int sr_config_get(const struct sr_dev_driver *driver,
		const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg,
		uint32_t key, GVariant **data);
SR_API int sr_config_set(const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg,
		uint32_t key, GVariant *data);
SR_API int sr_config_commit(const struct sr_dev_inst *sdi);
SR_API int sr_config_list(const struct sr_dev_driver *driver,
		const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg,
		uint32_t key, GVariant **data);
SR_API const struct sr_key_info *sr_key_info_get(int keytype, uint32_t key);
SR_API const struct sr_key_info *sr_key_info_name_get(int keytype, const char *keyid);

/*--- session.c -------------------------------------------------------------*/

typedef void (*sr_session_stopped_callback)(void *data);
typedef void (*sr_datafeed_callback)(const struct sr_dev_inst *sdi,
		const struct sr_datafeed_packet *packet, void *cb_data);

SR_API struct sr_trigger *sr_session_trigger_get(struct sr_session *session);

/* Session setup */
SR_API int sr_session_load(struct sr_context *ctx, const char *filename,
	struct sr_session **session);
SR_API int sr_session_new(struct sr_context *ctx, struct sr_session **session);
SR_API int sr_session_destroy(struct sr_session *session);
SR_API int sr_session_dev_remove_all(struct sr_session *session);
SR_API int sr_session_dev_add(struct sr_session *session,
		struct sr_dev_inst *sdi);
SR_API int sr_session_dev_remove(struct sr_session *session,
		struct sr_dev_inst *sdi);
SR_API int sr_session_dev_list(struct sr_session *session, GSList **devlist);
SR_API int sr_session_trigger_set(struct sr_session *session, struct sr_trigger *trig);

/* Datafeed setup */
SR_API int sr_session_datafeed_callback_remove_all(struct sr_session *session);
SR_API int sr_session_datafeed_callback_add(struct sr_session *session,
		sr_datafeed_callback cb, void *cb_data);

/* Session control */
SR_API int sr_session_start(struct sr_session *session);
SR_API int sr_session_run(struct sr_session *session);
SR_API int sr_session_stop(struct sr_session *session);
SR_API int sr_session_is_running(struct sr_session *session);
SR_API int sr_session_stopped_callback_set(struct sr_session *session,
		sr_session_stopped_callback cb, void *cb_data);

/*--- input/input.c ---------------------------------------------------------*/

SR_API const struct sr_input_module **sr_input_list(void);
SR_API const char *sr_input_id_get(const struct sr_input_module *imod);
SR_API const char *sr_input_name_get(const struct sr_input_module *imod);
SR_API const char *sr_input_description_get(const struct sr_input_module *imod);
SR_API const char *const *sr_input_extensions_get(
		const struct sr_input_module *imod);
SR_API const struct sr_input_module *sr_input_find(char *id);
SR_API const struct sr_option **sr_input_options_get(const struct sr_input_module *imod);
SR_API gboolean sr_output_test_flag(const struct sr_output_module *omod,
		uint64_t flag);
SR_API void sr_input_options_free(const struct sr_option **options);
SR_API struct sr_input *sr_input_new(const struct sr_input_module *imod,
		GHashTable *options);
SR_API int sr_input_scan_buffer(GString *buf, const struct sr_input **in);
SR_API int sr_input_scan_file(const char *filename, const struct sr_input **in);
SR_API struct sr_dev_inst *sr_input_dev_inst_get(const struct sr_input *in);
SR_API int sr_input_send(const struct sr_input *in, GString *buf);
SR_API int sr_input_end(const struct sr_input *in);
SR_API int sr_input_reset(const struct sr_input *in);
SR_API void sr_input_free(const struct sr_input *in);

/*--- output/output.c -------------------------------------------------------*/

SR_API const struct sr_output_module **sr_output_list(void);
SR_API const char *sr_output_id_get(const struct sr_output_module *omod);
SR_API const char *sr_output_name_get(const struct sr_output_module *omod);
SR_API const char *sr_output_description_get(const struct sr_output_module *omod);
SR_API const char *const *sr_output_extensions_get(
		const struct sr_output_module *omod);
SR_API const struct sr_output_module *sr_output_find(char *id);
SR_API const struct sr_option **sr_output_options_get(const struct sr_output_module *omod);
SR_API void sr_output_options_free(const struct sr_option **opts);
SR_API const struct sr_output *sr_output_new(const struct sr_output_module *omod,
		GHashTable *params, const struct sr_dev_inst *sdi,
		const char *filename);
SR_API int sr_output_send(const struct sr_output *o,
		const struct sr_datafeed_packet *packet, GString **out);
SR_API int sr_output_free(const struct sr_output *o);

/*--- transform/transform.c -------------------------------------------------*/

SR_API const struct sr_transform_module **sr_transform_list(void);
SR_API const char *sr_transform_id_get(const struct sr_transform_module *tmod);
SR_API const char *sr_transform_name_get(const struct sr_transform_module *tmod);
SR_API const char *sr_transform_description_get(const struct sr_transform_module *tmod);
SR_API const struct sr_transform_module *sr_transform_find(const char *id);
SR_API const struct sr_option **sr_transform_options_get(const struct sr_transform_module *tmod);
SR_API void sr_transform_options_free(const struct sr_option **opts);
SR_API const struct sr_transform *sr_transform_new(const struct sr_transform_module *tmod,
		GHashTable *params, const struct sr_dev_inst *sdi);
SR_API int sr_transform_free(const struct sr_transform *t);

/*--- trigger.c -------------------------------------------------------------*/

SR_API struct sr_trigger *sr_trigger_new(const char *name);
SR_API void sr_trigger_free(struct sr_trigger *trig);
SR_API struct sr_trigger_stage *sr_trigger_stage_add(struct sr_trigger *trig);
SR_API int sr_trigger_match_add(struct sr_trigger_stage *stage,
		struct sr_channel *ch, int trigger_match, float value);

/*--- serial.c --------------------------------------------------------------*/

SR_API GSList *sr_serial_list(const struct sr_dev_driver *driver);
SR_API void sr_serial_free(struct sr_serial_port *serial);

/*--- resource.c ------------------------------------------------------------*/

typedef int (*sr_resource_open_callback)(struct sr_resource *res,
		const char *name, void *cb_data);
typedef int (*sr_resource_close_callback)(struct sr_resource *res,
		void *cb_data);
typedef gssize (*sr_resource_read_callback)(const struct sr_resource *res,
		void *buf, size_t count, void *cb_data);

SR_API int sr_resource_set_hooks(struct sr_context *ctx,
		sr_resource_open_callback open_cb,
		sr_resource_close_callback close_cb,
		sr_resource_read_callback read_cb, void *cb_data);

/*--- strutil.c -------------------------------------------------------------*/

SR_API char *sr_si_string_u64(uint64_t x, const char *unit);
SR_API char *sr_samplerate_string(uint64_t samplerate);
SR_API char *sr_period_string(uint64_t frequency);
SR_API char *sr_voltage_string(uint64_t v_p, uint64_t v_q);
SR_API int sr_parse_sizestring(const char *sizestring, uint64_t *size);
SR_API uint64_t sr_parse_timestring(const char *timestring);
SR_API gboolean sr_parse_boolstring(const char *boolstring);
SR_API int sr_parse_period(const char *periodstr, uint64_t *p, uint64_t *q);
SR_API int sr_parse_voltage(const char *voltstr, uint64_t *p, uint64_t *q);
SR_API int sr_parse_rational(const char *str, struct sr_rational *ret);

/*--- version.c -------------------------------------------------------------*/

SR_API int sr_package_version_major_get(void);
SR_API int sr_package_version_minor_get(void);
SR_API int sr_package_version_micro_get(void);
SR_API const char *sr_package_version_string_get(void);

SR_API int sr_lib_version_current_get(void);
SR_API int sr_lib_version_revision_get(void);
SR_API int sr_lib_version_age_get(void);
SR_API const char *sr_lib_version_string_get(void);

/*--- error.c ---------------------------------------------------------------*/

SR_API const char *sr_strerror(int error_code);
SR_API const char *sr_strerror_name(int error_code);

#endif
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 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_PROTO_H
	21	#define LIBSIGROK_PROTO_H
	22
	23	/**
	24	* @file
	25	*
	26	* Header file containing API function prototypes.
	27	*/
	28
	29	/--- analog.c --------------------------------------------------------------/
	30
	31	SR_API int sr_analog_to_float(const struct sr_datafeed_analog *analog,
	32	float *buf);
	33	SR_API const char sr_analog_si_prefix(float value, int *digits);
	34	SR_API gboolean sr_analog_si_prefix_friendly(enum sr_unit unit);
	35	SR_API int sr_analog_unit_to_string(const struct sr_datafeed_analog *analog,
	36	char **result);
	37	SR_API void sr_rational_set(struct sr_rational *r, int64_t p, uint64_t q);
	38	SR_API int sr_rational_eq(const struct sr_rational a, const struct sr_rational b);
	39	SR_API int sr_rational_mult(struct sr_rational res, const struct sr_rational a,
	40	const struct sr_rational *b);
	41	SR_API int sr_rational_div(struct sr_rational res, const struct sr_rational num,
	42	const struct sr_rational *div);
	43
	44	/--- backend.c -------------------------------------------------------------/
	45
	46	SR_API int sr_init(struct sr_context **ctx);
	47	SR_API int sr_exit(struct sr_context *ctx);
	48
	49	/--- log.c -----------------------------------------------------------------/
	50
	51	typedef int (sr_log_callback)(void cb_data, int loglevel,
	52	const char *format, va_list args);
	53
	54	SR_API int sr_log_loglevel_set(int loglevel);
	55	SR_API int sr_log_loglevel_get(void);
	56	SR_API int sr_log_callback_set(sr_log_callback cb, void *cb_data);
	57	SR_API int sr_log_callback_set_default(void);
	58
	59	/--- device.c --------------------------------------------------------------/
	60
	61	SR_API int sr_dev_channel_name_set(struct sr_channel *channel,
	62	const char *name);
	63	SR_API int sr_dev_channel_enable(struct sr_channel *channel,
	64	gboolean state);
	65	SR_API gboolean sr_dev_has_option(const struct sr_dev_inst *sdi, int key);
	66	SR_API int sr_dev_config_capabilities_list(const struct sr_dev_inst *sdi,
	67	const struct sr_channel_group *cg, int key);
	68	SR_API GArray sr_dev_options(const struct sr_dev_driver driver,
	69	const struct sr_dev_inst sdi, const struct sr_channel_group cg);
	70	SR_API GSList sr_dev_list(const struct sr_dev_driver driver);
	71	SR_API int sr_dev_clear(const struct sr_dev_driver *driver);
	72	SR_API int sr_dev_open(struct sr_dev_inst *sdi);
	73	SR_API int sr_dev_close(struct sr_dev_inst *sdi);
	74
	75	SR_API struct sr_dev_driver sr_dev_inst_driver_get(const struct sr_dev_inst sdi);
	76	SR_API const char sr_dev_inst_vendor_get(const struct sr_dev_inst sdi);
	77	SR_API const char sr_dev_inst_model_get(const struct sr_dev_inst sdi);
	78	SR_API const char sr_dev_inst_version_get(const struct sr_dev_inst sdi);
	79	SR_API const char sr_dev_inst_sernum_get(const struct sr_dev_inst sdi);
	80	SR_API const char sr_dev_inst_connid_get(const struct sr_dev_inst sdi);
	81	SR_API GSList sr_dev_inst_channels_get(const struct sr_dev_inst sdi);
	82	SR_API GSList sr_dev_inst_channel_groups_get(const struct sr_dev_inst sdi);
	83
	84	SR_API struct sr_dev_inst sr_dev_inst_user_new(const char vendor,
	85	const char model, const char version);
	86	SR_API int sr_dev_inst_channel_add(struct sr_dev_inst sdi, int index, int type, const char name);
	87
	88	/--- hwdriver.c ------------------------------------------------------------/
	89
	90	SR_API struct sr_dev_driver *sr_driver_list(const struct sr_context ctx);
	91	SR_API int sr_driver_init(struct sr_context *ctx,
	92	struct sr_dev_driver *driver);
	93	SR_API GArray sr_driver_scan_options_list(const struct sr_dev_driver driver);
	94	SR_API GSList sr_driver_scan(struct sr_dev_driver driver, GSList *options);
	95	SR_API int sr_config_get(const struct sr_dev_driver *driver,
	96	const struct sr_dev_inst *sdi,
	97	const struct sr_channel_group *cg,
	98	uint32_t key, GVariant **data);
	99	SR_API int sr_config_set(const struct sr_dev_inst *sdi,
	100	const struct sr_channel_group *cg,
	101	uint32_t key, GVariant *data);
	102	SR_API int sr_config_commit(const struct sr_dev_inst *sdi);
	103	SR_API int sr_config_list(const struct sr_dev_driver *driver,
	104	const struct sr_dev_inst *sdi,
	105	const struct sr_channel_group *cg,
	106	uint32_t key, GVariant **data);
	107	SR_API const struct sr_key_info *sr_key_info_get(int keytype, uint32_t key);
	108	SR_API const struct sr_key_info sr_key_info_name_get(int keytype, const char keyid);
	109
	110	/--- session.c -------------------------------------------------------------/
	111
	112	typedef void (sr_session_stopped_callback)(void data);
	113	typedef void (sr_datafeed_callback)(const struct sr_dev_inst sdi,
	114	const struct sr_datafeed_packet packet, void cb_data);
	115
	116	SR_API struct sr_trigger sr_session_trigger_get(struct sr_session session);
	117
	118	/* Session setup */
	119	SR_API int sr_session_load(struct sr_context ctx, const char filename,
	120	struct sr_session **session);
	121	SR_API int sr_session_new(struct sr_context ctx, struct sr_session *session);
	122	SR_API int sr_session_destroy(struct sr_session *session);
	123	SR_API int sr_session_dev_remove_all(struct sr_session *session);
	124	SR_API int sr_session_dev_add(struct sr_session *session,
	125	struct sr_dev_inst *sdi);
	126	SR_API int sr_session_dev_remove(struct sr_session *session,
	127	struct sr_dev_inst *sdi);
	128	SR_API int sr_session_dev_list(struct sr_session session, GSList *devlist);
	129	SR_API int sr_session_trigger_set(struct sr_session session, struct sr_trigger trig);
	130
	131	/* Datafeed setup */
	132	SR_API int sr_session_datafeed_callback_remove_all(struct sr_session *session);
	133	SR_API int sr_session_datafeed_callback_add(struct sr_session *session,
	134	sr_datafeed_callback cb, void *cb_data);
	135
	136	/* Session control */
	137	SR_API int sr_session_start(struct sr_session *session);
	138	SR_API int sr_session_run(struct sr_session *session);
	139	SR_API int sr_session_stop(struct sr_session *session);
	140	SR_API int sr_session_is_running(struct sr_session *session);
	141	SR_API int sr_session_stopped_callback_set(struct sr_session *session,
	142	sr_session_stopped_callback cb, void *cb_data);
	143
	144	/--- input/input.c ---------------------------------------------------------/
	145
	146	SR_API const struct sr_input_module **sr_input_list(void);
	147	SR_API const char sr_input_id_get(const struct sr_input_module imod);
	148	SR_API const char sr_input_name_get(const struct sr_input_module imod);
	149	SR_API const char sr_input_description_get(const struct sr_input_module imod);
	150	SR_API const char const sr_input_extensions_get(
	151	const struct sr_input_module *imod);
	152	SR_API const struct sr_input_module sr_input_find(char id);
	153	SR_API const struct sr_option *sr_input_options_get(const struct sr_input_module imod);
	154	SR_API gboolean sr_output_test_flag(const struct sr_output_module *omod,
	155	uint64_t flag);
	156	SR_API void sr_input_options_free(const struct sr_option **options);
	157	SR_API struct sr_input sr_input_new(const struct sr_input_module imod,
	158	GHashTable *options);
	159	SR_API int sr_input_scan_buffer(GString buf, const struct sr_input *in);
	160	SR_API int sr_input_scan_file(const char filename, const struct sr_input *in);
	161	SR_API struct sr_dev_inst sr_input_dev_inst_get(const struct sr_input in);
	162	SR_API int sr_input_send(const struct sr_input in, GString buf);
	163	SR_API int sr_input_end(const struct sr_input *in);
	164	SR_API int sr_input_reset(const struct sr_input *in);
	165	SR_API void sr_input_free(const struct sr_input *in);
	166
	167	/--- output/output.c -------------------------------------------------------/
	168
	169	SR_API const struct sr_output_module **sr_output_list(void);
	170	SR_API const char sr_output_id_get(const struct sr_output_module omod);
	171	SR_API const char sr_output_name_get(const struct sr_output_module omod);
	172	SR_API const char sr_output_description_get(const struct sr_output_module omod);
	173	SR_API const char const sr_output_extensions_get(
	174	const struct sr_output_module *omod);
	175	SR_API const struct sr_output_module sr_output_find(char id);
	176	SR_API const struct sr_option *sr_output_options_get(const struct sr_output_module omod);
	177	SR_API void sr_output_options_free(const struct sr_option **opts);
	178	SR_API const struct sr_output sr_output_new(const struct sr_output_module omod,
	179	GHashTable params, const struct sr_dev_inst sdi,
	180	const char *filename);
	181	SR_API int sr_output_send(const struct sr_output *o,
	182	const struct sr_datafeed_packet packet, GString *out);
	183	SR_API int sr_output_free(const struct sr_output *o);
	184
	185	/--- transform/transform.c -------------------------------------------------/
	186
	187	SR_API const struct sr_transform_module **sr_transform_list(void);
	188	SR_API const char sr_transform_id_get(const struct sr_transform_module tmod);
	189	SR_API const char sr_transform_name_get(const struct sr_transform_module tmod);
	190	SR_API const char sr_transform_description_get(const struct sr_transform_module tmod);
	191	SR_API const struct sr_transform_module sr_transform_find(const char id);
	192	SR_API const struct sr_option *sr_transform_options_get(const struct sr_transform_module tmod);
	193	SR_API void sr_transform_options_free(const struct sr_option **opts);
	194	SR_API const struct sr_transform sr_transform_new(const struct sr_transform_module tmod,
	195	GHashTable params, const struct sr_dev_inst sdi);
	196	SR_API int sr_transform_free(const struct sr_transform *t);
	197
	198	/--- trigger.c -------------------------------------------------------------/
	199
	200	SR_API struct sr_trigger sr_trigger_new(const char name);
	201	SR_API void sr_trigger_free(struct sr_trigger *trig);
	202	SR_API struct sr_trigger_stage sr_trigger_stage_add(struct sr_trigger trig);
	203	SR_API int sr_trigger_match_add(struct sr_trigger_stage *stage,
	204	struct sr_channel *ch, int trigger_match, float value);
	205
	206	/--- serial.c --------------------------------------------------------------/
	207
	208	SR_API GSList sr_serial_list(const struct sr_dev_driver driver);
	209	SR_API void sr_serial_free(struct sr_serial_port *serial);
	210
	211	/--- resource.c ------------------------------------------------------------/
	212
	213	typedef int (sr_resource_open_callback)(struct sr_resource res,
	214	const char name, void cb_data);
	215	typedef int (sr_resource_close_callback)(struct sr_resource res,
	216	void *cb_data);
	217	typedef gssize (sr_resource_read_callback)(const struct sr_resource res,
	218	void buf, size_t count, void cb_data);
	219
	220	SR_API int sr_resource_set_hooks(struct sr_context *ctx,
	221	sr_resource_open_callback open_cb,
	222	sr_resource_close_callback close_cb,
	223	sr_resource_read_callback read_cb, void *cb_data);
	224
	225	/--- strutil.c -------------------------------------------------------------/
	226
	227	SR_API char sr_si_string_u64(uint64_t x, const char unit);
	228	SR_API char *sr_samplerate_string(uint64_t samplerate);
	229	SR_API char *sr_period_string(uint64_t frequency);
	230	SR_API char *sr_voltage_string(uint64_t v_p, uint64_t v_q);
	231	SR_API int sr_parse_sizestring(const char sizestring, uint64_t size);
	232	SR_API uint64_t sr_parse_timestring(const char *timestring);
	233	SR_API gboolean sr_parse_boolstring(const char *boolstring);
	234	SR_API int sr_parse_period(const char periodstr, uint64_t p, uint64_t *q);
	235	SR_API int sr_parse_voltage(const char voltstr, uint64_t p, uint64_t *q);
	236	SR_API int sr_parse_rational(const char str, struct sr_rational ret);
	237
	238	/--- version.c -------------------------------------------------------------/
	239
	240	SR_API int sr_package_version_major_get(void);
	241	SR_API int sr_package_version_minor_get(void);
	242	SR_API int sr_package_version_micro_get(void);
	243	SR_API const char *sr_package_version_string_get(void);
	244
	245	SR_API int sr_lib_version_current_get(void);
	246	SR_API int sr_lib_version_revision_get(void);
	247	SR_API int sr_lib_version_age_get(void);
	248	SR_API const char *sr_lib_version_string_get(void);
	249
	250	/--- error.c ---------------------------------------------------------------/
	251
	252	SR_API const char *sr_strerror(int error_code);
	253	SR_API const char *sr_strerror_name(int error_code);
	254
	255	#endif