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/>.
24 #ifndef LIBSIGROK_LIBSIGROK_INTERNAL_H
25 #define LIBSIGROK_LIBSIGROK_INTERNAL_H
29 #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
30 #ifdef HAVE_LIBUSB_1_0
33 #ifdef HAVE_LIBSERIALPORT
34 #include <libserialport.h>
40 * libsigrok private header file, only to be used internally.
43 /*--- Macros ----------------------------------------------------------------*/
46 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
49 #ifndef ARRAY_AND_SIZE
50 #define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
54 * Read a 8 bits integer out of memory.
55 * @param x a pointer to the input memory
56 * @return the corresponding integer
58 #define R8(x) ((unsigned)((const uint8_t*)(x))[0])
61 * Read a 16 bits big endian integer out of memory.
62 * @param x a pointer to the input memory
63 * @return the corresponding integer
65 #define RB16(x) (((unsigned)((const uint8_t*)(x))[0] << 8) | \
66 (unsigned)((const uint8_t*)(x))[1])
69 * Read a 16 bits little endian integer out of memory.
70 * @param x a pointer to the input memory
71 * @return the corresponding integer
73 #define RL16(x) (((unsigned)((const uint8_t*)(x))[1] << 8) | \
74 (unsigned)((const uint8_t*)(x))[0])
77 * Read a 32 bits big endian integer out of memory.
78 * @param x a pointer to the input memory
79 * @return the corresponding integer
81 #define RB32(x) (((unsigned)((const uint8_t*)(x))[0] << 24) | \
82 ((unsigned)((const uint8_t*)(x))[1] << 16) | \
83 ((unsigned)((const uint8_t*)(x))[2] << 8) | \
84 (unsigned)((const uint8_t*)(x))[3])
87 * Read a 32 bits little endian integer out of memory.
88 * @param x a pointer to the input memory
89 * @return the corresponding integer
91 #define RL32(x) (((unsigned)((const uint8_t*)(x))[3] << 24) | \
92 ((unsigned)((const uint8_t*)(x))[2] << 16) | \
93 ((unsigned)((const uint8_t*)(x))[1] << 8) | \
94 (unsigned)((const uint8_t*)(x))[0])
96 /* Portability fixes for FreeBSD. */
98 #define LIBUSB_CLASS_APPLICATION 0xfe
99 #define libusb_handle_events_timeout_completed(ctx, tv, c) \
100 libusb_handle_events_timeout(ctx, tv)
104 #ifdef HAVE_LIBUSB_1_0
105 libusb_context *libusb_ctx;
106 gboolean usb_source_present;
109 gboolean usb_thread_running;
113 sr_receive_data_callback_t usb_cb;
119 #ifdef HAVE_LIBUSB_1_0
120 /** USB device instance */
121 struct sr_usb_dev_inst {
124 /** Device address on USB bus */
126 /** libusb device handle */
127 struct libusb_device_handle *devhdl;
131 #ifdef HAVE_LIBSERIALPORT
132 #define SERIAL_PARITY_NONE SP_PARITY_NONE
133 #define SERIAL_PARITY_EVEN SP_PARITY_EVEN
134 #define SERIAL_PARITY_ODD SP_PARITY_ODD
135 struct sr_serial_dev_inst {
136 /** Port name, e.g. '/dev/tty42'. */
138 /** Comm params for serial_set_paramstr(). */
140 /** Port is non-blocking. */
142 /** libserialport port handle */
143 struct sp_port *data;
144 /** libserialport event set */
145 struct sp_event_set *event_set;
146 /** GPollFDs for event polling */
151 struct sr_usbtmc_dev_inst {
156 /* Private driver context. */
158 /** sigrok context */
159 struct sr_context *sr_ctx;
163 /*--- log.c -----------------------------------------------------------------*/
165 SR_PRIV int sr_log(int loglevel, const char *format, ...);
166 SR_PRIV int sr_spew(const char *format, ...);
167 SR_PRIV int sr_dbg(const char *format, ...);
168 SR_PRIV int sr_info(const char *format, ...);
169 SR_PRIV int sr_warn(const char *format, ...);
170 SR_PRIV int sr_err(const char *format, ...);
172 /* Message logging helpers with subsystem-specific prefix string. */
173 #ifndef NO_LOG_WRAPPERS
174 #define sr_log(l, s, args...) sr_log(l, "%s: " s, LOG_PREFIX, ## args)
175 #define sr_spew(s, args...) sr_spew("%s: " s, LOG_PREFIX, ## args)
176 #define sr_dbg(s, args...) sr_dbg("%s: " s, LOG_PREFIX, ## args)
177 #define sr_info(s, args...) sr_info("%s: " s, LOG_PREFIX, ## args)
178 #define sr_warn(s, args...) sr_warn("%s: " s, LOG_PREFIX, ## args)
179 #define sr_err(s, args...) sr_err("%s: " s, LOG_PREFIX, ## args)
182 /*--- device.c --------------------------------------------------------------*/
184 /** Values for the changes argument of sr_dev_driver.config_probe_set. */
186 /** The enabled state of the probe has been changed. */
187 SR_PROBE_SET_ENABLED = 1 << 0,
188 /** The trigger setup of the probe has been changed. */
189 SR_PROBE_SET_TRIGGER = 1 << 1,
192 SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
193 gboolean enabled, const char *name);
195 /* Generic device instances */
196 SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
197 const char *vendor, const char *model, const char *version);
198 SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
200 #ifdef HAVE_LIBUSB_1_0
201 /* USB-specific instances */
202 SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
203 uint8_t address, struct libusb_device_handle *hdl);
204 SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
205 SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
208 #ifdef HAVE_LIBSERIALPORT
209 /* Serial-specific instances */
210 SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port,
211 const char *serialcomm);
212 SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial);
215 /* USBTMC-specific instances */
216 SR_PRIV struct sr_usbtmc_dev_inst *sr_usbtmc_dev_inst_new(const char *device);
217 SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc);
219 /*--- hwdriver.c ------------------------------------------------------------*/
221 SR_PRIV void sr_hw_cleanup_all(void);
222 SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data);
223 SR_PRIV void sr_config_free(struct sr_config *src);
224 SR_PRIV int sr_source_remove(int fd);
225 SR_PRIV int sr_source_add(int fd, int events, int timeout,
226 sr_receive_data_callback_t cb, void *cb_data);
228 /*--- session.c -------------------------------------------------------------*/
231 /** List of struct sr_dev pointers. */
233 /** List of struct datafeed_callback pointers. */
234 GSList *datafeed_callbacks;
238 unsigned int num_sources;
241 * Both "sources" and "pollfds" are of the same size and contain pairs
242 * of descriptor and callback function. We can not embed the GPollFD
243 * into the source struct since we want to be able to pass the array
244 * of all poll descriptors to g_poll().
246 struct source *sources;
251 * These are our synchronization primitives for stopping the session in
252 * an async fashion. We need to make sure the session is stopped from
253 * within the session thread itself.
255 /** Mutex protecting access to abort_session. */
257 /** Abort current session. See sr_session_stop(). */
258 gboolean abort_session;
261 SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
262 const struct sr_datafeed_packet *packet);
263 SR_PRIV int sr_session_stop_sync(void);
264 SR_PRIV int sr_sessionfile_check(const char *filename);
266 /*--- std.c -----------------------------------------------------------------*/
268 typedef int (*dev_close_t)(struct sr_dev_inst *sdi);
269 typedef void (*std_dev_clear_t)(void *priv);
271 SR_PRIV int std_init(struct sr_context *sr_ctx, struct sr_dev_driver *di,
273 #ifdef HAVE_LIBSERIALPORT
274 SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi);
275 SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
276 void *cb_data, dev_close_t dev_close_fn,
277 struct sr_serial_dev_inst *serial, const char *prefix);
279 SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi,
281 SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
282 std_dev_clear_t clear_private);
283 SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi);
285 /*--- strutil.c -------------------------------------------------------------*/
287 SR_PRIV int sr_atol(const char *str, long *ret);
288 SR_PRIV int sr_atoi(const char *str, int *ret);
289 SR_PRIV int sr_atod(const char *str, double *ret);
290 SR_PRIV int sr_atof(const char *str, float *ret);
291 SR_PRIV int sr_atof_ascii(const char *str, float *ret);
293 /*--- hardware/common/serial.c ----------------------------------------------*/
295 #ifdef HAVE_LIBSERIALPORT
302 typedef gboolean (*packet_valid_t)(const uint8_t *buf);
304 SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags);
305 SR_PRIV int serial_close(struct sr_serial_dev_inst *serial);
306 SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial);
307 SR_PRIV int serial_write(struct sr_serial_dev_inst *serial,
308 const void *buf, size_t count);
309 SR_PRIV int serial_write_blocking(struct sr_serial_dev_inst *serial,
310 const void *buf, size_t count);
311 SR_PRIV int serial_write_nonblocking(struct sr_serial_dev_inst *serial,
312 const void *buf, size_t count);
313 SR_PRIV int serial_read(struct sr_serial_dev_inst *serial, void *buf,
315 SR_PRIV int serial_read_blocking(struct sr_serial_dev_inst *serial, void *buf,
317 SR_PRIV int serial_read_nonblocking(struct sr_serial_dev_inst *serial, void *buf,
319 SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
320 int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
321 SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
322 const char *paramstr);
323 SR_PRIV int serial_readline(struct sr_serial_dev_inst *serial, char **buf,
324 int *buflen, gint64 timeout_ms);
325 SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
326 uint8_t *buf, size_t *buflen,
327 size_t packet_size, packet_valid_t is_valid,
328 uint64_t timeout_ms, int baudrate);
329 SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_device,
330 const char **serial_options);
331 SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
332 int timeout, sr_receive_data_callback_t cb, void *cb_data);
333 SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial);
336 /*--- hardware/common/ezusb.c -----------------------------------------------*/
338 #ifdef HAVE_LIBUSB_1_0
339 SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear);
340 SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
341 const char *filename);
342 SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
343 const char *filename);
346 /*--- hardware/common/usb.c -------------------------------------------------*/
348 #ifdef HAVE_LIBUSB_1_0
349 SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn);
350 SR_PRIV int sr_usb_open(libusb_context *usb_ctx, struct sr_usb_dev_inst *usb);
351 SR_PRIV int usb_source_add(struct sr_context *ctx, int timeout,
352 sr_receive_data_callback_t cb, void *cb_data);
353 SR_PRIV int usb_source_remove(struct sr_context *ctx);
356 /*--- hardware/common/scpi.c ------------------------------------------------*/
358 #define SCPI_CMD_IDN "*IDN?"
359 #define SCPI_CMD_OPC "*OPC?"
362 SCPI_CMD_SET_TRIGGER_SOURCE,
363 SCPI_CMD_SET_TIMEBASE,
364 SCPI_CMD_SET_VERTICAL_DIV,
365 SCPI_CMD_SET_TRIGGER_SLOPE,
366 SCPI_CMD_SET_COUPLING,
367 SCPI_CMD_SET_HORIZ_TRIGGERPOS,
368 SCPI_CMD_GET_ANALOG_CHAN_STATE,
369 SCPI_CMD_GET_DIG_CHAN_STATE,
370 SCPI_CMD_GET_TIMEBASE,
371 SCPI_CMD_GET_VERTICAL_DIV,
372 SCPI_CMD_GET_VERTICAL_OFFSET,
373 SCPI_CMD_GET_TRIGGER_SOURCE,
374 SCPI_CMD_GET_HORIZ_TRIGGERPOS,
375 SCPI_CMD_GET_TRIGGER_SLOPE,
376 SCPI_CMD_GET_COUPLING,
377 SCPI_CMD_SET_ANALOG_CHAN_STATE,
378 SCPI_CMD_SET_DIG_CHAN_STATE,
379 SCPI_CMD_GET_DIG_POD_STATE,
380 SCPI_CMD_SET_DIG_POD_STATE,
381 SCPI_CMD_GET_ANALOG_DATA,
382 SCPI_CMD_GET_DIG_DATA,
383 SCPI_CMD_GET_SAMPLE_RATE,
384 SCPI_CMD_GET_SAMPLE_RATE_LIVE,
387 struct sr_scpi_hw_info {
391 char *firmware_version;
394 struct sr_scpi_dev_inst {
398 int (*dev_inst_new)(void *priv, const char *resource, char **params,
399 const char *serialcomm);
400 int (*open)(void *priv);
401 int (*source_add)(void *priv, int events,
402 int timeout, sr_receive_data_callback_t cb, void *cb_data);
403 int (*source_remove)(void *priv);
404 int (*send)(void *priv, const char *command);
405 int (*read_begin)(void *priv);
406 int (*read_data)(void *priv, char *buf, int maxlen);
407 int (*read_complete)(void *priv);
408 int (*close)(void *priv);
409 void (*free)(void *priv);
413 SR_PRIV struct sr_scpi_dev_inst *scpi_dev_inst_new(const char *resource,
414 const char *serialcomm);
415 SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
416 SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events,
417 int timeout, sr_receive_data_callback_t cb, void *cb_data);
418 SR_PRIV int sr_scpi_source_remove(struct sr_scpi_dev_inst *scpi);
419 SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi,
420 const char *format, ...);
421 SR_PRIV int sr_scpi_send_variadic(struct sr_scpi_dev_inst *scpi,
422 const char *format, va_list args);
423 SR_PRIV int sr_scpi_read_begin(struct sr_scpi_dev_inst *scpi);
424 SR_PRIV int sr_scpi_read_data(struct sr_scpi_dev_inst *scpi, char *buf, int maxlen);
425 SR_PRIV int sr_scpi_read_complete(struct sr_scpi_dev_inst *scpi);
426 SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi);
427 SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi);
429 SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi,
430 const char *command, char **scpi_response);
431 SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi,
432 const char *command, gboolean *scpi_response);
433 SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi,
434 const char *command, int *scpi_response);
435 SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi,
436 const char *command, float *scpi_response);
437 SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi,
438 const char *command, double *scpi_response);
439 SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi);
440 SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi,
441 const char *command, GArray **scpi_response);
442 SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi,
443 const char *command, GArray **scpi_response);
444 SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi,
445 struct sr_scpi_hw_info **scpi_response);
446 SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info);
448 /*--- hardware/common/dmm/es519xx.c -----------------------------------------*/
451 * All 11-byte es519xx chips repeat each block twice for each conversion cycle
452 * so always read 2 blocks at a time.
454 #define ES519XX_11B_PACKET_SIZE (11 * 2)
455 #define ES519XX_14B_PACKET_SIZE 14
457 struct es519xx_info {
458 gboolean is_judge, is_voltage, is_auto, is_micro, is_current;
459 gboolean is_milli, is_resistance, is_continuity, is_diode;
460 gboolean is_frequency, is_rpm, is_capacitance, is_duty_cycle;
461 gboolean is_temperature, is_celsius, is_fahrenheit;
462 gboolean is_adp0, is_adp1, is_adp2, is_adp3;
463 gboolean is_sign, is_batt, is_ol, is_pmax, is_pmin, is_apo;
464 gboolean is_dc, is_ac, is_vahz, is_min, is_max, is_rel, is_hold;
465 gboolean is_digit4, is_ul, is_vasel, is_vbar, is_lpf1, is_lpf0, is_rmr;
468 gboolean alt_functions, fivedigits, clampmeter, selectable_lpf;
471 SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf);
472 SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval,
473 struct sr_datafeed_analog *analog, void *info);
474 SR_PRIV gboolean sr_es519xx_2400_11b_altfn_packet_valid(const uint8_t *buf);
475 SR_PRIV int sr_es519xx_2400_11b_altfn_parse(const uint8_t *buf,
476 float *floatval, struct sr_datafeed_analog *analog, void *info);
477 SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf);
478 SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
479 float *floatval, struct sr_datafeed_analog *analog, void *info);
480 SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf);
481 SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf,
482 float *floatval, struct sr_datafeed_analog *analog, void *info);
483 SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf);
484 SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t *buf, float *floatval,
485 struct sr_datafeed_analog *analog, void *info);
486 SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf);
487 SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t *buf, float *floatval,
488 struct sr_datafeed_analog *analog, void *info);
489 SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf);
490 SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf,
491 float *floatval, struct sr_datafeed_analog *analog, void *info);
493 /*--- hardware/common/dmm/fs9922.c ------------------------------------------*/
495 #define FS9922_PACKET_SIZE 14
498 gboolean is_auto, is_dc, is_ac, is_rel, is_hold, is_bpn, is_z1, is_z2;
499 gboolean is_max, is_min, is_apo, is_bat, is_nano, is_z3, is_micro;
500 gboolean is_milli, is_kilo, is_mega, is_beep, is_diode, is_percent;
501 gboolean is_z4, is_volt, is_ampere, is_ohm, is_hfe, is_hertz, is_farad;
502 gboolean is_celsius, is_fahrenheit;
503 int bargraph_sign, bargraph_value;
506 SR_PRIV gboolean sr_fs9922_packet_valid(const uint8_t *buf);
507 SR_PRIV int sr_fs9922_parse(const uint8_t *buf, float *floatval,
508 struct sr_datafeed_analog *analog, void *info);
509 SR_PRIV void sr_fs9922_z1_diode(struct sr_datafeed_analog *analog, void *info);
511 /*--- hardware/common/dmm/fs9721.c ------------------------------------------*/
513 #define FS9721_PACKET_SIZE 14
516 gboolean is_ac, is_dc, is_auto, is_rs232, is_micro, is_nano, is_kilo;
517 gboolean is_diode, is_milli, is_percent, is_mega, is_beep, is_farad;
518 gboolean is_ohm, is_rel, is_hold, is_ampere, is_volt, is_hz, is_bat;
519 gboolean is_c2c1_11, is_c2c1_10, is_c2c1_01, is_c2c1_00, is_sign;
522 SR_PRIV gboolean sr_fs9721_packet_valid(const uint8_t *buf);
523 SR_PRIV int sr_fs9721_parse(const uint8_t *buf, float *floatval,
524 struct sr_datafeed_analog *analog, void *info);
525 SR_PRIV void sr_fs9721_00_temp_c(struct sr_datafeed_analog *analog, void *info);
526 SR_PRIV void sr_fs9721_01_temp_c(struct sr_datafeed_analog *analog, void *info);
527 SR_PRIV void sr_fs9721_10_temp_c(struct sr_datafeed_analog *analog, void *info);
528 SR_PRIV void sr_fs9721_01_10_temp_f_c(struct sr_datafeed_analog *analog, void *info);
529 SR_PRIV void sr_fs9721_max_c_min(struct sr_datafeed_analog *analog, void *info);
531 /*--- hardware/common/dmm/m2110.c -----------------------------------------*/
533 #define BBCGM_M2110_PACKET_SIZE 9
535 SR_PRIV gboolean sr_m2110_packet_valid(const uint8_t *buf);
536 SR_PRIV int sr_m2110_parse(const uint8_t *buf, float *floatval,
537 struct sr_datafeed_analog *analog, void *info);
539 /*--- hardware/common/dmm/metex14.c -----------------------------------------*/
541 #define METEX14_PACKET_SIZE 14
543 struct metex14_info {
544 gboolean is_ac, is_dc, is_resistance, is_capacity, is_temperature;
545 gboolean is_diode, is_frequency, is_ampere, is_volt, is_farad;
546 gboolean is_hertz, is_ohm, is_celsius, is_pico, is_nano, is_micro;
547 gboolean is_milli, is_kilo, is_mega, is_gain, is_decibel, is_hfe;
548 gboolean is_unitless;
551 #ifdef HAVE_LIBSERIALPORT
552 SR_PRIV int sr_metex14_packet_request(struct sr_serial_dev_inst *serial);
554 SR_PRIV gboolean sr_metex14_packet_valid(const uint8_t *buf);
555 SR_PRIV int sr_metex14_parse(const uint8_t *buf, float *floatval,
556 struct sr_datafeed_analog *analog, void *info);
558 /*--- hardware/common/dmm/rs9lcd.c ------------------------------------------*/
560 #define RS9LCD_PACKET_SIZE 9
562 /* Dummy info struct. The parser does not use it. */
563 struct rs9lcd_info { int dummy; };
565 SR_PRIV gboolean sr_rs9lcd_packet_valid(const uint8_t *buf);
566 SR_PRIV int sr_rs9lcd_parse(const uint8_t *buf, float *floatval,
567 struct sr_datafeed_analog *analog, void *info);