[libsigrok.git] / libsigrok-internal.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/>.
 */

/** @file
  * @internal
  */

#ifndef LIBSIGROK_LIBSIGROK_INTERNAL_H
#define LIBSIGROK_LIBSIGROK_INTERNAL_H

#include <stdarg.h>
#include <glib.h>
#include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
#ifdef HAVE_LIBUSB_1_0
#include <libusb.h>
#endif
#ifdef HAVE_LIBSERIALPORT
#include <libserialport.h>
#endif

/**
 * @file
 *
 * libsigrok private header file, only to be used internally.
 */

/*--- Macros ----------------------------------------------------------------*/

#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
#endif

#ifndef ARRAY_AND_SIZE
#define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
#endif

/* Portability fixes for FreeBSD. */
#ifdef __FreeBSD__
#define LIBUSB_CLASS_APPLICATION 0xfe
#define libusb_handle_events_timeout_completed(ctx, tv, c) \
	libusb_handle_events_timeout(ctx, tv)
#endif

struct sr_context {
#ifdef HAVE_LIBUSB_1_0
	libusb_context *libusb_ctx;
	gboolean usb_source_present;
#ifdef _WIN32
	GThread *usb_thread;
	gboolean usb_thread_running;
	GMutex usb_mutex;
	HANDLE usb_event;
	GPollFD usb_pollfd;
	sr_receive_data_callback_t usb_cb;
	void *usb_cb_data;
#endif
#endif
};

#ifdef HAVE_LIBUSB_1_0
/** USB device instance */
struct sr_usb_dev_inst {
	/** USB bus */
	uint8_t bus;
	/** Device address on USB bus */
	uint8_t address;
	/** libusb device handle */
	struct libusb_device_handle *devhdl;
};
#endif

#ifdef HAVE_LIBSERIALPORT
#define SERIAL_PARITY_NONE SP_PARITY_NONE
#define SERIAL_PARITY_EVEN SP_PARITY_EVEN
#define SERIAL_PARITY_ODD  SP_PARITY_ODD
struct sr_serial_dev_inst {
	/** Port name, e.g. '/dev/tty42'. */
	char *port;
	/** Comm params for serial_set_paramstr(). */
	char *serialcomm;
	/** Port is non-blocking. */
	int nonblocking;
	/** libserialport port handle */
	struct sp_port *data;
	/** libserialport event set */
	struct sp_event_set *event_set;
	/** GPollFDs for event polling */
	GPollFD *pollfds;
};
#endif

struct sr_usbtmc_dev_inst {
	char *device;
	int fd;
};

/* Private driver context. */
struct drv_context {
	/** sigrok context */
	struct sr_context *sr_ctx;
	GSList *instances;
};

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

SR_PRIV int sr_log(int loglevel, const char *format, ...);
SR_PRIV int sr_spew(const char *format, ...);
SR_PRIV int sr_dbg(const char *format, ...);
SR_PRIV int sr_info(const char *format, ...);
SR_PRIV int sr_warn(const char *format, ...);
SR_PRIV int sr_err(const char *format, ...);

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

SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
		gboolean enabled, const char *name);

/* Generic device instances */
SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
		const char *vendor, const char *model, const char *version);
SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);

#ifdef HAVE_LIBUSB_1_0
/* USB-specific instances */
SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
		uint8_t address, struct libusb_device_handle *hdl);
SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
#endif

#ifdef HAVE_LIBSERIALPORT
/* Serial-specific instances */
SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port,
		const char *serialcomm);
SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial);
#endif

/* USBTMC-specific instances */
SR_PRIV struct sr_usbtmc_dev_inst *sr_usbtmc_dev_inst_new(const char *device);
SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc);

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

SR_PRIV void sr_hw_cleanup_all(void);
SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data);
SR_PRIV void sr_config_free(struct sr_config *src);
SR_PRIV int sr_source_remove(int fd);
SR_PRIV int sr_source_add(int fd, int events, int timeout,
		sr_receive_data_callback_t cb, void *cb_data);

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

struct sr_session {
	/** List of struct sr_dev pointers. */
	GSList *devs;
	/** List of struct datafeed_callback pointers. */
	GSList *datafeed_callbacks;
	GTimeVal starttime;
	gboolean running;

	unsigned int num_sources;

	/*
	 * Both "sources" and "pollfds" are of the same size and contain pairs
	 * of descriptor and callback function. We can not embed the GPollFD
	 * into the source struct since we want to be able to pass the array
	 * of all poll descriptors to g_poll().
	 */
	struct source *sources;
	GPollFD *pollfds;
	int source_timeout;

	/*
	 * These are our synchronization primitives for stopping the session in
	 * an async fashion. We need to make sure the session is stopped from
	 * within the session thread itself.
	 */
	/** Mutex protecting access to abort_session. */
	GMutex stop_mutex;
	/** Abort current session. See sr_session_stop(). */
	gboolean abort_session;
};

SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
		const struct sr_datafeed_packet *packet);
SR_PRIV int sr_session_stop_sync(void);
SR_PRIV int sr_sessionfile_check(const char *filename);

/*--- std.c -----------------------------------------------------------------*/

typedef int (*dev_close_t)(struct sr_dev_inst *sdi);
typedef void (*std_dev_clear_t)(void *priv);

SR_PRIV int std_init(struct sr_context *sr_ctx, struct sr_dev_driver *di,
		const char *prefix);
#ifdef HAVE_LIBSERIALPORT
SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi);
SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
		void *cb_data, dev_close_t dev_close_fn,
		struct sr_serial_dev_inst *serial, const char *prefix);
#endif
SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi,
		const char *prefix);
SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
		std_dev_clear_t clear_private);
SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi);

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

SR_PRIV int sr_atol(const char *str, long *ret);
SR_PRIV int sr_atoi(const char *str, int *ret);
SR_PRIV int sr_atod(const char *str, double *ret);
SR_PRIV int sr_atof(const char *str, float *ret);

/*--- hardware/common/serial.c ----------------------------------------------*/

#ifdef HAVE_LIBSERIALPORT
enum {
	SERIAL_RDWR = 1,
	SERIAL_RDONLY = 2,
	SERIAL_NONBLOCK = 4,
};

typedef gboolean (*packet_valid_t)(const uint8_t *buf);

SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags);
SR_PRIV int serial_close(struct sr_serial_dev_inst *serial);
SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial);
SR_PRIV int serial_write(struct sr_serial_dev_inst *serial,
		const void *buf, size_t count);
SR_PRIV int serial_read(struct sr_serial_dev_inst *serial, void *buf,
		size_t count);
SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
		int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
		const char *paramstr);
SR_PRIV int serial_readline(struct sr_serial_dev_inst *serial, char **buf,
		int *buflen, gint64 timeout_ms);
SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
				 uint8_t *buf, size_t *buflen,
				 size_t packet_size, packet_valid_t is_valid,
				 uint64_t timeout_ms, int baudrate);
SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_device,
				      const char **serial_options);
SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
		int timeout, sr_receive_data_callback_t cb, void *cb_data);
SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial);
#endif

/*--- hardware/common/ezusb.c -----------------------------------------------*/

#ifdef HAVE_LIBUSB_1_0
SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear);
SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
				   const char *filename);
SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
				  const char *filename);
#endif

/*--- hardware/common/usb.c -------------------------------------------------*/

#ifdef HAVE_LIBUSB_1_0
SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn);
SR_PRIV int sr_usb_open(libusb_context *usb_ctx, struct sr_usb_dev_inst *usb);
SR_PRIV int usb_source_add(struct sr_context *ctx, int timeout,
		sr_receive_data_callback_t cb, void *cb_data);
SR_PRIV int usb_source_remove(struct sr_context *ctx);
#endif

/*--- hardware/common/scpi.c ------------------------------------------------*/

#define SCPI_CMD_IDN "*IDN?"
#define SCPI_CMD_OPC "*OPC?"

enum {
	SCPI_CMD_SET_TRIGGER_SOURCE,
	SCPI_CMD_SET_TIMEBASE,
	SCPI_CMD_SET_VERTICAL_DIV,
	SCPI_CMD_SET_TRIGGER_SLOPE,
	SCPI_CMD_SET_COUPLING,
	SCPI_CMD_SET_HORIZ_TRIGGERPOS,
	SCPI_CMD_GET_ANALOG_CHAN_STATE,
	SCPI_CMD_GET_DIG_CHAN_STATE,
	SCPI_CMD_GET_TIMEBASE,
	SCPI_CMD_GET_VERTICAL_DIV,
	SCPI_CMD_GET_VERTICAL_OFFSET,
	SCPI_CMD_GET_TRIGGER_SOURCE,
	SCPI_CMD_GET_HORIZ_TRIGGERPOS,
	SCPI_CMD_GET_TRIGGER_SLOPE,
	SCPI_CMD_GET_COUPLING,
	SCPI_CMD_SET_ANALOG_CHAN_STATE,
	SCPI_CMD_SET_DIG_CHAN_STATE,
	SCPI_CMD_GET_DIG_POD_STATE,
	SCPI_CMD_SET_DIG_POD_STATE,
	SCPI_CMD_GET_ANALOG_DATA,
	SCPI_CMD_GET_DIG_DATA,
};

struct sr_scpi_hw_info {
	char *manufacturer;
	char *model;
	char *serial_number;
	char *firmware_version;
};

struct sr_scpi_dev_inst {
	int (*open)(void *priv);
	int (*source_add)(void *priv, int events,
		int timeout, sr_receive_data_callback_t cb, void *cb_data);
	int (*source_remove)(void *priv);
	int (*send)(void *priv, const char *command);
	int (*receive)(void *priv, char **scpi_response);
	int (*read)(void *priv, char *buf, int maxlen);
	int (*close)(void *priv);
	void (*free)(void *priv);
	void *priv;
};

SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events,
		int timeout, sr_receive_data_callback_t cb, void *cb_data);
SR_PRIV int sr_scpi_source_remove(struct sr_scpi_dev_inst *scpi);
SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi,
		const char *format, ...);
SR_PRIV int sr_scpi_send_variadic(struct sr_scpi_dev_inst *scpi,
		const char *format, va_list args);
SR_PRIV int sr_scpi_receive(struct sr_scpi_dev_inst *scpi,
			char **scpi_response);
SR_PRIV int sr_scpi_read(struct sr_scpi_dev_inst *scpi, char *buf, int maxlen);
SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi);
SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi);

SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi,
			const char *command, char **scpi_response);
SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi,
			const char *command, gboolean *scpi_response);
SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi,
			const char *command, int *scpi_response);
SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi,
			const char *command, float *scpi_response);
SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi,
			const char *command, double *scpi_response);
SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi);
SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi,
			const char *command, GArray **scpi_response);
SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi,
			const char *command, GArray **scpi_response);
SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi,
			struct sr_scpi_hw_info **scpi_response);
SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info);

/*--- hardware/common/scpi_serial.c -----------------------------------------*/

#ifdef HAVE_LIBSERIALPORT
SR_PRIV struct sr_scpi_dev_inst *scpi_serial_dev_inst_new(const char *port,
		        const char *serialcomm);
#endif

/*--- hardware/common/scpi_tcp.c --------------------------------------------*/

SR_PRIV struct sr_scpi_dev_inst *scpi_tcp_dev_inst_new(const char *address,
			const char *port);

/*--- hardware/common/scpi_usbtmc.c -----------------------------------------*/

SR_PRIV struct sr_scpi_dev_inst *scpi_usbtmc_dev_inst_new(const char *device);

/*--- hardware/common/dmm/es51922.c -----------------------------------------*/

#define ES51922_PACKET_SIZE 14

struct es51922_info {
	gboolean is_judge, is_vbar, is_voltage, is_auto, is_micro, is_current;
	gboolean is_milli, is_resistance, is_continuity, is_diode, is_lpf;
	gboolean is_frequency, is_duty_cycle, is_capacitance, is_temperature;
	gboolean is_celsius, is_fahrenheit, is_adp, is_sign, is_batt, is_ol;
	gboolean is_max, is_min, is_rel, is_rmr, is_ul, is_pmax, is_pmin;
	gboolean is_dc, is_ac, is_vahz, is_hold, is_nano, is_kilo, is_mega;
};

SR_PRIV gboolean sr_es51922_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es51922_parse(const uint8_t *buf, float *floatval,
			     struct sr_datafeed_analog *analog, void *info);

/*--- hardware/common/dmm/es519xx.c -----------------------------------------*/

/**
 * All 11-byte es519xx chips repeat each block twice for each conversion cycle
 * so always read 2 blocks at a time.
 */
#define ES519XX_11B_PACKET_SIZE (11 * 2)
#define ES519XX_14B_PACKET_SIZE 14

struct es519xx_info {
	gboolean is_judge, is_voltage, is_auto, is_micro, is_current;
	gboolean is_milli, is_resistance, is_continuity, is_diode;
	gboolean is_frequency, is_rpm, is_capacitance, is_duty_cycle;
	gboolean is_temperature, is_celsius, is_fahrenheit;
	gboolean is_adp0, is_adp1, is_adp2, is_adp3;
	gboolean is_sign, is_batt, is_ol, is_pmax, is_pmin, is_apo;
	gboolean is_dc, is_ac, is_vahz, is_min, is_max, is_rel, is_hold;
	gboolean is_digit4, is_ul, is_vasel, is_vbar, is_lpf1, is_lpf0, is_rmr;
	uint32_t baudrate;
	int packet_size;
	gboolean alt_functions, fivedigits, clampmeter, selectable_lpf;
};

SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval,
		struct sr_datafeed_analog *analog, void *info);
SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
		float *floatval, struct sr_datafeed_analog *analog, void *info);
SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf,
		float *floatval, struct sr_datafeed_analog *analog, void *info);
SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t *buf, float *floatval,
		struct sr_datafeed_analog *analog, void *info);
SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t *buf, float *floatval,
		struct sr_datafeed_analog *analog, void *info);
SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf,
		float *floatval, struct sr_datafeed_analog *analog, void *info);

/*--- hardware/common/dmm/fs9922.c ------------------------------------------*/

#define FS9922_PACKET_SIZE 14

struct fs9922_info {
	gboolean is_auto, is_dc, is_ac, is_rel, is_hold, is_bpn, is_z1, is_z2;
	gboolean is_max, is_min, is_apo, is_bat, is_nano, is_z3, is_micro;
	gboolean is_milli, is_kilo, is_mega, is_beep, is_diode, is_percent;
	gboolean is_z4, is_volt, is_ampere, is_ohm, is_hfe, is_hertz, is_farad;
	gboolean is_celsius, is_fahrenheit;
	int bargraph_sign, bargraph_value;
};

SR_PRIV gboolean sr_fs9922_packet_valid(const uint8_t *buf);
SR_PRIV int sr_fs9922_parse(const uint8_t *buf, float *floatval,
			    struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9922_z1_diode(struct sr_datafeed_analog *analog, void *info);

/*--- hardware/common/dmm/fs9721.c ------------------------------------------*/

#define FS9721_PACKET_SIZE 14

struct fs9721_info {
	gboolean is_ac, is_dc, is_auto, is_rs232, is_micro, is_nano, is_kilo;
	gboolean is_diode, is_milli, is_percent, is_mega, is_beep, is_farad;
	gboolean is_ohm, is_rel, is_hold, is_ampere, is_volt, is_hz, is_bat;
	gboolean is_c2c1_11, is_c2c1_10, is_c2c1_01, is_c2c1_00, is_sign;
};

SR_PRIV gboolean sr_fs9721_packet_valid(const uint8_t *buf);
SR_PRIV int sr_fs9721_parse(const uint8_t *buf, float *floatval,
			    struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_00_temp_c(struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_01_temp_c(struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_10_temp_c(struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_01_10_temp_f_c(struct sr_datafeed_analog *analog, void *info);

/*--- hardware/common/dmm/m2110.c -----------------------------------------*/

#define BBCGM_M2110_PACKET_SIZE 9

SR_PRIV gboolean sr_m2110_packet_valid(const uint8_t *buf);
SR_PRIV int sr_m2110_parse(const uint8_t *buf, float *floatval,
			     struct sr_datafeed_analog *analog, void *info);

/*--- hardware/common/dmm/metex14.c -----------------------------------------*/

#define METEX14_PACKET_SIZE 14

struct metex14_info {
	gboolean is_ac, is_dc, is_resistance, is_capacity, is_temperature;
	gboolean is_diode, is_frequency, is_ampere, is_volt, is_farad;
	gboolean is_hertz, is_ohm, is_celsius, is_pico, is_nano, is_micro;
	gboolean is_milli, is_kilo, is_mega, is_gain, is_decibel, is_hfe;
	gboolean is_unitless;
};

#ifdef HAVE_LIBSERIALPORT
SR_PRIV int sr_metex14_packet_request(struct sr_serial_dev_inst *serial);
#endif
SR_PRIV gboolean sr_metex14_packet_valid(const uint8_t *buf);
SR_PRIV int sr_metex14_parse(const uint8_t *buf, float *floatval,
			     struct sr_datafeed_analog *analog, void *info);

/*--- hardware/common/dmm/rs9lcd.c ------------------------------------------*/

#define RS9LCD_PACKET_SIZE 9

/* Dummy info struct. The parser does not use it. */
struct rs9lcd_info { int dummy; };

SR_PRIV gboolean sr_rs9lcd_packet_valid(const uint8_t *buf);
SR_PRIV int sr_rs9lcd_parse(const uint8_t *buf, float *floatval,
			    struct sr_datafeed_analog *analog, void *info);

#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	/** @file
	21	* @internal
	22	*/
	23
	24	#ifndef LIBSIGROK_LIBSIGROK_INTERNAL_H
	25	#define LIBSIGROK_LIBSIGROK_INTERNAL_H
	26
	27	#include <stdarg.h>
	28	#include <glib.h>
	29	#include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
	30	#ifdef HAVE_LIBUSB_1_0
	31	#include <libusb.h>
	32	#endif
	33	#ifdef HAVE_LIBSERIALPORT
	34	#include <libserialport.h>
	35	#endif
	36
	37	/**
	38	* @file
	39	*
	40	* libsigrok private header file, only to be used internally.
	41	*/
	42
	43	/--- Macros ----------------------------------------------------------------/
	44
	45	#ifndef ARRAY_SIZE
	46	#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
	47	#endif
	48
	49	#ifndef ARRAY_AND_SIZE
	50	#define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
	51	#endif
	52
	53	/* Portability fixes for FreeBSD. */
	54	#ifdef __FreeBSD__
	55	#define LIBUSB_CLASS_APPLICATION 0xfe
	56	#define libusb_handle_events_timeout_completed(ctx, tv, c) \
	57	libusb_handle_events_timeout(ctx, tv)
	58	#endif
	59
	60	struct sr_context {
	61	#ifdef HAVE_LIBUSB_1_0
	62	libusb_context *libusb_ctx;
	63	gboolean usb_source_present;
	64	#ifdef _WIN32
	65	GThread *usb_thread;
	66	gboolean usb_thread_running;
	67	GMutex usb_mutex;
	68	HANDLE usb_event;
	69	GPollFD usb_pollfd;
	70	sr_receive_data_callback_t usb_cb;
	71	void *usb_cb_data;
	72	#endif
	73	#endif
	74	};
	75
	76	#ifdef HAVE_LIBUSB_1_0
	77	/** USB device instance */
	78	struct sr_usb_dev_inst {
	79	/** USB bus */
	80	uint8_t bus;
	81	/** Device address on USB bus */
	82	uint8_t address;
	83	/** libusb device handle */
	84	struct libusb_device_handle *devhdl;
	85	};
	86	#endif
	87
	88	#ifdef HAVE_LIBSERIALPORT
	89	#define SERIAL_PARITY_NONE SP_PARITY_NONE
	90	#define SERIAL_PARITY_EVEN SP_PARITY_EVEN
	91	#define SERIAL_PARITY_ODD SP_PARITY_ODD
	92	struct sr_serial_dev_inst {
	93	/** Port name, e.g. '/dev/tty42'. */
	94	char *port;
	95	/** Comm params for serial_set_paramstr(). */
	96	char *serialcomm;
	97	/** Port is non-blocking. */
	98	int nonblocking;
	99	/** libserialport port handle */
	100	struct sp_port *data;
	101	/** libserialport event set */
	102	struct sp_event_set *event_set;
	103	/** GPollFDs for event polling */
	104	GPollFD *pollfds;
	105	};
	106	#endif
	107
	108	struct sr_usbtmc_dev_inst {
	109	char *device;
	110	int fd;
	111	};
	112
	113	/* Private driver context. */
	114	struct drv_context {
	115	/** sigrok context */
	116	struct sr_context *sr_ctx;
	117	GSList *instances;
	118	};
	119
	120	/--- log.c -----------------------------------------------------------------/
	121
	122	SR_PRIV int sr_log(int loglevel, const char *format, ...);
	123	SR_PRIV int sr_spew(const char *format, ...);
	124	SR_PRIV int sr_dbg(const char *format, ...);
	125	SR_PRIV int sr_info(const char *format, ...);
	126	SR_PRIV int sr_warn(const char *format, ...);
	127	SR_PRIV int sr_err(const char *format, ...);
	128
	129	/--- device.c --------------------------------------------------------------/
	130
	131	SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
	132	gboolean enabled, const char *name);
	133
	134	/* Generic device instances */
	135	SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
	136	const char vendor, const char model, const char *version);
	137	SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
	138
	139	#ifdef HAVE_LIBUSB_1_0
	140	/* USB-specific instances */
	141	SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
	142	uint8_t address, struct libusb_device_handle *hdl);
	143	SR_PRIV GSList sr_usb_find_usbtmc(libusb_context usb_ctx);
	144	SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
	145	#endif
	146
	147	#ifdef HAVE_LIBSERIALPORT
	148	/* Serial-specific instances */
	149	SR_PRIV struct sr_serial_dev_inst sr_serial_dev_inst_new(const char port,
	150	const char *serialcomm);
	151	SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial);
	152	#endif
	153
	154	/* USBTMC-specific instances */
	155	SR_PRIV struct sr_usbtmc_dev_inst sr_usbtmc_dev_inst_new(const char device);
	156	SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc);
	157
	158	/--- hwdriver.c ------------------------------------------------------------/
	159
	160	SR_PRIV void sr_hw_cleanup_all(void);
	161	SR_PRIV struct sr_config sr_config_new(int key, GVariant data);
	162	SR_PRIV void sr_config_free(struct sr_config *src);
	163	SR_PRIV int sr_source_remove(int fd);
	164	SR_PRIV int sr_source_add(int fd, int events, int timeout,
	165	sr_receive_data_callback_t cb, void *cb_data);
	166
	167	/--- session.c -------------------------------------------------------------/
	168
	169	struct sr_session {
	170	/** List of struct sr_dev pointers. */
	171	GSList *devs;
	172	/** List of struct datafeed_callback pointers. */
	173	GSList *datafeed_callbacks;
	174	GTimeVal starttime;
	175	gboolean running;
	176
	177	unsigned int num_sources;
	178
	179	/*
	180	* Both "sources" and "pollfds" are of the same size and contain pairs
	181	* of descriptor and callback function. We can not embed the GPollFD
	182	* into the source struct since we want to be able to pass the array
	183	* of all poll descriptors to g_poll().
	184	*/
	185	struct source *sources;
	186	GPollFD *pollfds;
	187	int source_timeout;
	188
	189	/*
	190	* These are our synchronization primitives for stopping the session in
	191	* an async fashion. We need to make sure the session is stopped from
	192	* within the session thread itself.
	193	*/
	194	/** Mutex protecting access to abort_session. */
	195	GMutex stop_mutex;
	196	/** Abort current session. See sr_session_stop(). */
	197	gboolean abort_session;
	198	};
	199
	200	SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
	201	const struct sr_datafeed_packet *packet);
	202	SR_PRIV int sr_session_stop_sync(void);
	203	SR_PRIV int sr_sessionfile_check(const char *filename);
	204
	205	/--- std.c -----------------------------------------------------------------/
	206
	207	typedef int (dev_close_t)(struct sr_dev_inst sdi);
	208	typedef void (std_dev_clear_t)(void priv);
	209
	210	SR_PRIV int std_init(struct sr_context sr_ctx, struct sr_dev_driver di,
	211	const char *prefix);
	212	#ifdef HAVE_LIBSERIALPORT
	213	SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi);
	214	SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
	215	void *cb_data, dev_close_t dev_close_fn,
	216	struct sr_serial_dev_inst serial, const char prefix);
	217	#endif
	218	SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi,
	219	const char *prefix);
	220	SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
	221	std_dev_clear_t clear_private);
	222	SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi);
	223
	224	/--- strutil.c -------------------------------------------------------------/
	225
	226	SR_PRIV int sr_atol(const char str, long ret);
	227	SR_PRIV int sr_atoi(const char str, int ret);
	228	SR_PRIV int sr_atod(const char str, double ret);
	229	SR_PRIV int sr_atof(const char str, float ret);
	230
	231	/--- hardware/common/serial.c ----------------------------------------------/
	232
	233	#ifdef HAVE_LIBSERIALPORT
	234	enum {
	235	SERIAL_RDWR = 1,
	236	SERIAL_RDONLY = 2,
	237	SERIAL_NONBLOCK = 4,
	238	};
	239
	240	typedef gboolean (packet_valid_t)(const uint8_t buf);
	241
	242	SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags);
	243	SR_PRIV int serial_close(struct sr_serial_dev_inst *serial);
	244	SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial);
	245	SR_PRIV int serial_write(struct sr_serial_dev_inst *serial,
	246	const void *buf, size_t count);
	247	SR_PRIV int serial_read(struct sr_serial_dev_inst serial, void buf,
	248	size_t count);
	249	SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
	250	int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
	251	SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
	252	const char *paramstr);
	253	SR_PRIV int serial_readline(struct sr_serial_dev_inst serial, char *buf,
	254	int *buflen, gint64 timeout_ms);
	255	SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
	256	uint8_t buf, size_t buflen,
	257	size_t packet_size, packet_valid_t is_valid,
	258	uint64_t timeout_ms, int baudrate);
	259	SR_PRIV int sr_serial_extract_options(GSList options, const char *serial_device,
	260	const char **serial_options);
	261	SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
	262	int timeout, sr_receive_data_callback_t cb, void *cb_data);
	263	SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial);
	264	#endif
	265
	266	/--- hardware/common/ezusb.c -----------------------------------------------/
	267
	268	#ifdef HAVE_LIBUSB_1_0
	269	SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear);
	270	SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
	271	const char *filename);
	272	SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
	273	const char *filename);
	274	#endif
	275
	276	/--- hardware/common/usb.c -------------------------------------------------/
	277
	278	#ifdef HAVE_LIBUSB_1_0
	279	SR_PRIV GSList sr_usb_find(libusb_context usb_ctx, const char *conn);
	280	SR_PRIV int sr_usb_open(libusb_context usb_ctx, struct sr_usb_dev_inst usb);
	281	SR_PRIV int usb_source_add(struct sr_context *ctx, int timeout,
	282	sr_receive_data_callback_t cb, void *cb_data);
	283	SR_PRIV int usb_source_remove(struct sr_context *ctx);
	284	#endif
	285
	286	/--- hardware/common/scpi.c ------------------------------------------------/
	287
	288	#define SCPI_CMD_IDN "*IDN?"
	289	#define SCPI_CMD_OPC "*OPC?"
	290
	291	enum {
	292	SCPI_CMD_SET_TRIGGER_SOURCE,
	293	SCPI_CMD_SET_TIMEBASE,
	294	SCPI_CMD_SET_VERTICAL_DIV,
	295	SCPI_CMD_SET_TRIGGER_SLOPE,
	296	SCPI_CMD_SET_COUPLING,
	297	SCPI_CMD_SET_HORIZ_TRIGGERPOS,
	298	SCPI_CMD_GET_ANALOG_CHAN_STATE,
	299	SCPI_CMD_GET_DIG_CHAN_STATE,
	300	SCPI_CMD_GET_TIMEBASE,
	301	SCPI_CMD_GET_VERTICAL_DIV,
	302	SCPI_CMD_GET_VERTICAL_OFFSET,
	303	SCPI_CMD_GET_TRIGGER_SOURCE,
	304	SCPI_CMD_GET_HORIZ_TRIGGERPOS,
	305	SCPI_CMD_GET_TRIGGER_SLOPE,
	306	SCPI_CMD_GET_COUPLING,
	307	SCPI_CMD_SET_ANALOG_CHAN_STATE,
	308	SCPI_CMD_SET_DIG_CHAN_STATE,
	309	SCPI_CMD_GET_DIG_POD_STATE,
	310	SCPI_CMD_SET_DIG_POD_STATE,
	311	SCPI_CMD_GET_ANALOG_DATA,
	312	SCPI_CMD_GET_DIG_DATA,
	313	};
	314
	315	struct sr_scpi_hw_info {
	316	char *manufacturer;
	317	char *model;
	318	char *serial_number;
	319	char *firmware_version;
	320	};
	321
	322	struct sr_scpi_dev_inst {
	323	int (open)(void priv);
	324	int (source_add)(void priv, int events,
	325	int timeout, sr_receive_data_callback_t cb, void *cb_data);
	326	int (source_remove)(void priv);
	327	int (send)(void priv, const char *command);
	328	int (receive)(void priv, char **scpi_response);
	329	int (read)(void priv, char *buf, int maxlen);
	330	int (close)(void priv);
	331	void (free)(void priv);
	332	void *priv;
	333	};
	334
	335	SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
	336	SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events,
	337	int timeout, sr_receive_data_callback_t cb, void *cb_data);
	338	SR_PRIV int sr_scpi_source_remove(struct sr_scpi_dev_inst *scpi);
	339	SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi,
	340	const char *format, ...);
	341	SR_PRIV int sr_scpi_send_variadic(struct sr_scpi_dev_inst *scpi,
	342	const char *format, va_list args);
	343	SR_PRIV int sr_scpi_receive(struct sr_scpi_dev_inst *scpi,
	344	char **scpi_response);
	345	SR_PRIV int sr_scpi_read(struct sr_scpi_dev_inst scpi, char buf, int maxlen);
	346	SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi);
	347	SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi);
	348
	349	SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi,
	350	const char command, char *scpi_response);
	351	SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi,
	352	const char command, gboolean scpi_response);
	353	SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi,
	354	const char command, int scpi_response);
	355	SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi,
	356	const char command, float scpi_response);
	357	SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi,
	358	const char command, double scpi_response);
	359	SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi);
	360	SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi,
	361	const char command, GArray *scpi_response);
	362	SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi,
	363	const char command, GArray *scpi_response);
	364	SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi,
	365	struct sr_scpi_hw_info **scpi_response);
	366	SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info);
	367
	368	/--- hardware/common/scpi_serial.c -----------------------------------------/
	369
	370	#ifdef HAVE_LIBSERIALPORT
	371	SR_PRIV struct sr_scpi_dev_inst scpi_serial_dev_inst_new(const char port,
	372	const char *serialcomm);
	373	#endif
	374
	375	/--- hardware/common/scpi_tcp.c --------------------------------------------/
	376
	377	SR_PRIV struct sr_scpi_dev_inst scpi_tcp_dev_inst_new(const char address,
	378	const char *port);
	379
	380	/--- hardware/common/scpi_usbtmc.c -----------------------------------------/
	381
	382	SR_PRIV struct sr_scpi_dev_inst scpi_usbtmc_dev_inst_new(const char device);
	383
	384	/--- hardware/common/dmm/es51922.c -----------------------------------------/
	385
	386	#define ES51922_PACKET_SIZE 14
	387
	388	struct es51922_info {
	389	gboolean is_judge, is_vbar, is_voltage, is_auto, is_micro, is_current;
	390	gboolean is_milli, is_resistance, is_continuity, is_diode, is_lpf;
	391	gboolean is_frequency, is_duty_cycle, is_capacitance, is_temperature;
	392	gboolean is_celsius, is_fahrenheit, is_adp, is_sign, is_batt, is_ol;
	393	gboolean is_max, is_min, is_rel, is_rmr, is_ul, is_pmax, is_pmin;
	394	gboolean is_dc, is_ac, is_vahz, is_hold, is_nano, is_kilo, is_mega;
	395	};
	396
	397	SR_PRIV gboolean sr_es51922_packet_valid(const uint8_t *buf);
	398	SR_PRIV int sr_es51922_parse(const uint8_t buf, float floatval,
	399	struct sr_datafeed_analog analog, void info);
	400
	401	/--- hardware/common/dmm/es519xx.c -----------------------------------------/
	402
	403	/**
	404	* All 11-byte es519xx chips repeat each block twice for each conversion cycle
	405	* so always read 2 blocks at a time.
	406	*/
	407	#define ES519XX_11B_PACKET_SIZE (11 * 2)
	408	#define ES519XX_14B_PACKET_SIZE 14
	409
	410	struct es519xx_info {
	411	gboolean is_judge, is_voltage, is_auto, is_micro, is_current;
	412	gboolean is_milli, is_resistance, is_continuity, is_diode;
	413	gboolean is_frequency, is_rpm, is_capacitance, is_duty_cycle;
	414	gboolean is_temperature, is_celsius, is_fahrenheit;
	415	gboolean is_adp0, is_adp1, is_adp2, is_adp3;
	416	gboolean is_sign, is_batt, is_ol, is_pmax, is_pmin, is_apo;
	417	gboolean is_dc, is_ac, is_vahz, is_min, is_max, is_rel, is_hold;
	418	gboolean is_digit4, is_ul, is_vasel, is_vbar, is_lpf1, is_lpf0, is_rmr;
	419	uint32_t baudrate;
	420	int packet_size;
	421	gboolean alt_functions, fivedigits, clampmeter, selectable_lpf;
	422	};
	423
	424	SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf);
	425	SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t buf, float floatval,
	426	struct sr_datafeed_analog analog, void info);
	427	SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf);
	428	SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
	429	float floatval, struct sr_datafeed_analog analog, void *info);
	430	SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf);
	431	SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf,
	432	float floatval, struct sr_datafeed_analog analog, void *info);
	433	SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf);
	434	SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t buf, float floatval,
	435	struct sr_datafeed_analog analog, void info);
	436	SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf);
	437	SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t buf, float floatval,
	438	struct sr_datafeed_analog analog, void info);
	439	SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf);
	440	SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf,
	441	float floatval, struct sr_datafeed_analog analog, void *info);
	442
	443	/--- hardware/common/dmm/fs9922.c ------------------------------------------/
	444
	445	#define FS9922_PACKET_SIZE 14
	446
	447	struct fs9922_info {
	448	gboolean is_auto, is_dc, is_ac, is_rel, is_hold, is_bpn, is_z1, is_z2;
	449	gboolean is_max, is_min, is_apo, is_bat, is_nano, is_z3, is_micro;
	450	gboolean is_milli, is_kilo, is_mega, is_beep, is_diode, is_percent;
	451	gboolean is_z4, is_volt, is_ampere, is_ohm, is_hfe, is_hertz, is_farad;
	452	gboolean is_celsius, is_fahrenheit;
	453	int bargraph_sign, bargraph_value;
	454	};
	455
	456	SR_PRIV gboolean sr_fs9922_packet_valid(const uint8_t *buf);
	457	SR_PRIV int sr_fs9922_parse(const uint8_t buf, float floatval,
	458	struct sr_datafeed_analog analog, void info);
	459	SR_PRIV void sr_fs9922_z1_diode(struct sr_datafeed_analog analog, void info);
	460
	461	/--- hardware/common/dmm/fs9721.c ------------------------------------------/
	462
	463	#define FS9721_PACKET_SIZE 14
	464
	465	struct fs9721_info {
	466	gboolean is_ac, is_dc, is_auto, is_rs232, is_micro, is_nano, is_kilo;
	467	gboolean is_diode, is_milli, is_percent, is_mega, is_beep, is_farad;
	468	gboolean is_ohm, is_rel, is_hold, is_ampere, is_volt, is_hz, is_bat;
	469	gboolean is_c2c1_11, is_c2c1_10, is_c2c1_01, is_c2c1_00, is_sign;
	470	};
	471
	472	SR_PRIV gboolean sr_fs9721_packet_valid(const uint8_t *buf);
	473	SR_PRIV int sr_fs9721_parse(const uint8_t buf, float floatval,
	474	struct sr_datafeed_analog analog, void info);
	475	SR_PRIV void sr_fs9721_00_temp_c(struct sr_datafeed_analog analog, void info);
	476	SR_PRIV void sr_fs9721_01_temp_c(struct sr_datafeed_analog analog, void info);
	477	SR_PRIV void sr_fs9721_10_temp_c(struct sr_datafeed_analog analog, void info);
	478	SR_PRIV void sr_fs9721_01_10_temp_f_c(struct sr_datafeed_analog analog, void info);
	479
	480	/--- hardware/common/dmm/m2110.c -----------------------------------------/
	481
	482	#define BBCGM_M2110_PACKET_SIZE 9
	483
	484	SR_PRIV gboolean sr_m2110_packet_valid(const uint8_t *buf);
	485	SR_PRIV int sr_m2110_parse(const uint8_t buf, float floatval,
	486	struct sr_datafeed_analog analog, void info);
	487
	488	/--- hardware/common/dmm/metex14.c -----------------------------------------/
	489
	490	#define METEX14_PACKET_SIZE 14
	491
	492	struct metex14_info {
	493	gboolean is_ac, is_dc, is_resistance, is_capacity, is_temperature;
	494	gboolean is_diode, is_frequency, is_ampere, is_volt, is_farad;
	495	gboolean is_hertz, is_ohm, is_celsius, is_pico, is_nano, is_micro;
	496	gboolean is_milli, is_kilo, is_mega, is_gain, is_decibel, is_hfe;
	497	gboolean is_unitless;
	498	};
	499
	500	#ifdef HAVE_LIBSERIALPORT
	501	SR_PRIV int sr_metex14_packet_request(struct sr_serial_dev_inst *serial);
	502	#endif
	503	SR_PRIV gboolean sr_metex14_packet_valid(const uint8_t *buf);
	504	SR_PRIV int sr_metex14_parse(const uint8_t buf, float floatval,
	505	struct sr_datafeed_analog analog, void info);
	506
	507	/--- hardware/common/dmm/rs9lcd.c ------------------------------------------/
	508
	509	#define RS9LCD_PACKET_SIZE 9
	510
	511	/* Dummy info struct. The parser does not use it. */
	512	struct rs9lcd_info { int dummy; };
	513
	514	SR_PRIV gboolean sr_rs9lcd_packet_valid(const uint8_t *buf);
	515	SR_PRIV int sr_rs9lcd_parse(const uint8_t buf, float floatval,
	516	struct sr_datafeed_analog analog, void info);
	517
	518	#endif