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scpi: factorize dev_inst_new calls out of individual drivers
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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/**
54 * Read a 16 bits big endian integer out of memory.
55 * @param x a pointer to the input memory
56 * @return the corresponding integer
57 */
58#define RB16(x) (((unsigned)((const uint8_t*)(x))[0] << 8) | \
59 (unsigned)((const uint8_t*)(x))[1])
60
61/**
62 * Read a 16 bits little endian integer out of memory.
63 * @param x a pointer to the input memory
64 * @return the corresponding integer
65 */
66#define RL16(x) (((unsigned)((const uint8_t*)(x))[1] << 8) | \
67 (unsigned)((const uint8_t*)(x))[0])
68
69/**
70 * Read a 32 bits big endian integer out of memory.
71 * @param x a pointer to the input memory
72 * @return the corresponding integer
73 */
74#define RB32(x) (((unsigned)((const uint8_t*)(x))[0] << 24) | \
75 ((unsigned)((const uint8_t*)(x))[1] << 16) | \
76 ((unsigned)((const uint8_t*)(x))[2] << 8) | \
77 (unsigned)((const uint8_t*)(x))[3])
78
79/**
80 * Read a 32 bits little endian integer out of memory.
81 * @param x a pointer to the input memory
82 * @return the corresponding integer
83 */
84#define RL32(x) (((unsigned)((const uint8_t*)(x))[3] << 24) | \
85 ((unsigned)((const uint8_t*)(x))[2] << 16) | \
86 ((unsigned)((const uint8_t*)(x))[1] << 8) | \
87 (unsigned)((const uint8_t*)(x))[0])
88
89/* Portability fixes for FreeBSD. */
90#ifdef __FreeBSD__
91#define LIBUSB_CLASS_APPLICATION 0xfe
92#define libusb_handle_events_timeout_completed(ctx, tv, c) \
93 libusb_handle_events_timeout(ctx, tv)
94#endif
95
96struct sr_context {
97#ifdef HAVE_LIBUSB_1_0
98 libusb_context *libusb_ctx;
99 gboolean usb_source_present;
100#ifdef _WIN32
101 GThread *usb_thread;
102 gboolean usb_thread_running;
103 GMutex usb_mutex;
104 HANDLE usb_event;
105 GPollFD usb_pollfd;
106 sr_receive_data_callback_t usb_cb;
107 void *usb_cb_data;
108#endif
109#endif
110};
111
112#ifdef HAVE_LIBUSB_1_0
113/** USB device instance */
114struct sr_usb_dev_inst {
115 /** USB bus */
116 uint8_t bus;
117 /** Device address on USB bus */
118 uint8_t address;
119 /** libusb device handle */
120 struct libusb_device_handle *devhdl;
121};
122#endif
123
124#ifdef HAVE_LIBSERIALPORT
125#define SERIAL_PARITY_NONE SP_PARITY_NONE
126#define SERIAL_PARITY_EVEN SP_PARITY_EVEN
127#define SERIAL_PARITY_ODD SP_PARITY_ODD
128struct sr_serial_dev_inst {
129 /** Port name, e.g. '/dev/tty42'. */
130 char *port;
131 /** Comm params for serial_set_paramstr(). */
132 char *serialcomm;
133 /** Port is non-blocking. */
134 int nonblocking;
135 /** libserialport port handle */
136 struct sp_port *data;
137 /** libserialport event set */
138 struct sp_event_set *event_set;
139 /** GPollFDs for event polling */
140 GPollFD *pollfds;
141};
142#endif
143
144struct sr_usbtmc_dev_inst {
145 char *device;
146 int fd;
147};
148
149/* Private driver context. */
150struct drv_context {
151 /** sigrok context */
152 struct sr_context *sr_ctx;
153 GSList *instances;
154};
155
156/*--- log.c -----------------------------------------------------------------*/
157
158SR_PRIV int sr_log(int loglevel, const char *format, ...);
159SR_PRIV int sr_spew(const char *format, ...);
160SR_PRIV int sr_dbg(const char *format, ...);
161SR_PRIV int sr_info(const char *format, ...);
162SR_PRIV int sr_warn(const char *format, ...);
163SR_PRIV int sr_err(const char *format, ...);
164
165/* Message logging helpers with subsystem-specific prefix string. */
166#ifndef NO_LOG_WRAPPERS
167#define sr_log(l, s, args...) sr_log(l, "%s: " s, LOG_PREFIX, ## args)
168#define sr_spew(s, args...) sr_spew("%s: " s, LOG_PREFIX, ## args)
169#define sr_dbg(s, args...) sr_dbg("%s: " s, LOG_PREFIX, ## args)
170#define sr_info(s, args...) sr_info("%s: " s, LOG_PREFIX, ## args)
171#define sr_warn(s, args...) sr_warn("%s: " s, LOG_PREFIX, ## args)
172#define sr_err(s, args...) sr_err("%s: " s, LOG_PREFIX, ## args)
173#endif
174
175/*--- device.c --------------------------------------------------------------*/
176
177SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
178 gboolean enabled, const char *name);
179
180/* Generic device instances */
181SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
182 const char *vendor, const char *model, const char *version);
183SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
184
185#ifdef HAVE_LIBUSB_1_0
186/* USB-specific instances */
187SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
188 uint8_t address, struct libusb_device_handle *hdl);
189SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
190SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
191#endif
192
193#ifdef HAVE_LIBSERIALPORT
194/* Serial-specific instances */
195SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port,
196 const char *serialcomm);
197SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial);
198#endif
199
200/* USBTMC-specific instances */
201SR_PRIV struct sr_usbtmc_dev_inst *sr_usbtmc_dev_inst_new(const char *device);
202SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc);
203
204/*--- hwdriver.c ------------------------------------------------------------*/
205
206SR_PRIV void sr_hw_cleanup_all(void);
207SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data);
208SR_PRIV void sr_config_free(struct sr_config *src);
209SR_PRIV int sr_source_remove(int fd);
210SR_PRIV int sr_source_add(int fd, int events, int timeout,
211 sr_receive_data_callback_t cb, void *cb_data);
212
213/*--- session.c -------------------------------------------------------------*/
214
215struct sr_session {
216 /** List of struct sr_dev pointers. */
217 GSList *devs;
218 /** List of struct datafeed_callback pointers. */
219 GSList *datafeed_callbacks;
220 GTimeVal starttime;
221 gboolean running;
222
223 unsigned int num_sources;
224
225 /*
226 * Both "sources" and "pollfds" are of the same size and contain pairs
227 * of descriptor and callback function. We can not embed the GPollFD
228 * into the source struct since we want to be able to pass the array
229 * of all poll descriptors to g_poll().
230 */
231 struct source *sources;
232 GPollFD *pollfds;
233 int source_timeout;
234
235 /*
236 * These are our synchronization primitives for stopping the session in
237 * an async fashion. We need to make sure the session is stopped from
238 * within the session thread itself.
239 */
240 /** Mutex protecting access to abort_session. */
241 GMutex stop_mutex;
242 /** Abort current session. See sr_session_stop(). */
243 gboolean abort_session;
244};
245
246SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
247 const struct sr_datafeed_packet *packet);
248SR_PRIV int sr_session_stop_sync(void);
249SR_PRIV int sr_sessionfile_check(const char *filename);
250
251/*--- std.c -----------------------------------------------------------------*/
252
253typedef int (*dev_close_t)(struct sr_dev_inst *sdi);
254typedef void (*std_dev_clear_t)(void *priv);
255
256SR_PRIV int std_init(struct sr_context *sr_ctx, struct sr_dev_driver *di,
257 const char *prefix);
258#ifdef HAVE_LIBSERIALPORT
259SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi);
260SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
261 void *cb_data, dev_close_t dev_close_fn,
262 struct sr_serial_dev_inst *serial, const char *prefix);
263#endif
264SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi,
265 const char *prefix);
266SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
267 std_dev_clear_t clear_private);
268SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi);
269
270/*--- strutil.c -------------------------------------------------------------*/
271
272SR_PRIV int sr_atol(const char *str, long *ret);
273SR_PRIV int sr_atoi(const char *str, int *ret);
274SR_PRIV int sr_atod(const char *str, double *ret);
275SR_PRIV int sr_atof(const char *str, float *ret);
276
277/*--- hardware/common/serial.c ----------------------------------------------*/
278
279#ifdef HAVE_LIBSERIALPORT
280enum {
281 SERIAL_RDWR = 1,
282 SERIAL_RDONLY = 2,
283 SERIAL_NONBLOCK = 4,
284};
285
286typedef gboolean (*packet_valid_t)(const uint8_t *buf);
287
288SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags);
289SR_PRIV int serial_close(struct sr_serial_dev_inst *serial);
290SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial);
291SR_PRIV int serial_write(struct sr_serial_dev_inst *serial,
292 const void *buf, size_t count);
293SR_PRIV int serial_write_blocking(struct sr_serial_dev_inst *serial,
294 const void *buf, size_t count);
295SR_PRIV int serial_write_nonblocking(struct sr_serial_dev_inst *serial,
296 const void *buf, size_t count);
297SR_PRIV int serial_read(struct sr_serial_dev_inst *serial, void *buf,
298 size_t count);
299SR_PRIV int serial_read_blocking(struct sr_serial_dev_inst *serial, void *buf,
300 size_t count);
301SR_PRIV int serial_read_nonblocking(struct sr_serial_dev_inst *serial, void *buf,
302 size_t count);
303SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
304 int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
305SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
306 const char *paramstr);
307SR_PRIV int serial_readline(struct sr_serial_dev_inst *serial, char **buf,
308 int *buflen, gint64 timeout_ms);
309SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
310 uint8_t *buf, size_t *buflen,
311 size_t packet_size, packet_valid_t is_valid,
312 uint64_t timeout_ms, int baudrate);
313SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_device,
314 const char **serial_options);
315SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
316 int timeout, sr_receive_data_callback_t cb, void *cb_data);
317SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial);
318#endif
319
320/*--- hardware/common/ezusb.c -----------------------------------------------*/
321
322#ifdef HAVE_LIBUSB_1_0
323SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear);
324SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
325 const char *filename);
326SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
327 const char *filename);
328#endif
329
330/*--- hardware/common/usb.c -------------------------------------------------*/
331
332#ifdef HAVE_LIBUSB_1_0
333SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn);
334SR_PRIV int sr_usb_open(libusb_context *usb_ctx, struct sr_usb_dev_inst *usb);
335SR_PRIV int usb_source_add(struct sr_context *ctx, int timeout,
336 sr_receive_data_callback_t cb, void *cb_data);
337SR_PRIV int usb_source_remove(struct sr_context *ctx);
338#endif
339
340/*--- hardware/common/scpi.c ------------------------------------------------*/
341
342#define SCPI_CMD_IDN "*IDN?"
343#define SCPI_CMD_OPC "*OPC?"
344
345enum {
346 SCPI_CMD_SET_TRIGGER_SOURCE,
347 SCPI_CMD_SET_TIMEBASE,
348 SCPI_CMD_SET_VERTICAL_DIV,
349 SCPI_CMD_SET_TRIGGER_SLOPE,
350 SCPI_CMD_SET_COUPLING,
351 SCPI_CMD_SET_HORIZ_TRIGGERPOS,
352 SCPI_CMD_GET_ANALOG_CHAN_STATE,
353 SCPI_CMD_GET_DIG_CHAN_STATE,
354 SCPI_CMD_GET_TIMEBASE,
355 SCPI_CMD_GET_VERTICAL_DIV,
356 SCPI_CMD_GET_VERTICAL_OFFSET,
357 SCPI_CMD_GET_TRIGGER_SOURCE,
358 SCPI_CMD_GET_HORIZ_TRIGGERPOS,
359 SCPI_CMD_GET_TRIGGER_SLOPE,
360 SCPI_CMD_GET_COUPLING,
361 SCPI_CMD_SET_ANALOG_CHAN_STATE,
362 SCPI_CMD_SET_DIG_CHAN_STATE,
363 SCPI_CMD_GET_DIG_POD_STATE,
364 SCPI_CMD_SET_DIG_POD_STATE,
365 SCPI_CMD_GET_ANALOG_DATA,
366 SCPI_CMD_GET_DIG_DATA,
367};
368
369struct sr_scpi_hw_info {
370 char *manufacturer;
371 char *model;
372 char *serial_number;
373 char *firmware_version;
374};
375
376struct sr_scpi_dev_inst {
377 int (*open)(void *priv);
378 int (*source_add)(void *priv, int events,
379 int timeout, sr_receive_data_callback_t cb, void *cb_data);
380 int (*source_remove)(void *priv);
381 int (*send)(void *priv, const char *command);
382 int (*read_begin)(void *priv);
383 int (*read_data)(void *priv, char *buf, int maxlen);
384 int (*read_complete)(void *priv);
385 int (*close)(void *priv);
386 void (*free)(void *priv);
387 void *priv;
388};
389
390SR_PRIV struct sr_scpi_dev_inst *scpi_dev_inst_new(const char *resource,
391 const char *serialcomm);
392SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
393SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events,
394 int timeout, sr_receive_data_callback_t cb, void *cb_data);
395SR_PRIV int sr_scpi_source_remove(struct sr_scpi_dev_inst *scpi);
396SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi,
397 const char *format, ...);
398SR_PRIV int sr_scpi_send_variadic(struct sr_scpi_dev_inst *scpi,
399 const char *format, va_list args);
400SR_PRIV int sr_scpi_read_begin(struct sr_scpi_dev_inst *scpi);
401SR_PRIV int sr_scpi_read_data(struct sr_scpi_dev_inst *scpi, char *buf, int maxlen);
402SR_PRIV int sr_scpi_read_complete(struct sr_scpi_dev_inst *scpi);
403SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi);
404SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi);
405
406SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi,
407 const char *command, char **scpi_response);
408SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi,
409 const char *command, gboolean *scpi_response);
410SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi,
411 const char *command, int *scpi_response);
412SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi,
413 const char *command, float *scpi_response);
414SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi,
415 const char *command, double *scpi_response);
416SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi);
417SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi,
418 const char *command, GArray **scpi_response);
419SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi,
420 const char *command, GArray **scpi_response);
421SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi,
422 struct sr_scpi_hw_info **scpi_response);
423SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info);
424
425/*--- hardware/common/scpi_vxi.c --------------------------------------------*/
426
427SR_PRIV struct sr_scpi_dev_inst *scpi_vxi_dev_inst_new(const char *address,
428 const char *instrument);
429
430/*--- hardware/common/scpi_serial.c -----------------------------------------*/
431
432#ifdef HAVE_LIBSERIALPORT
433SR_PRIV struct sr_scpi_dev_inst *scpi_serial_dev_inst_new(const char *port,
434 const char *serialcomm);
435#endif
436
437/*--- hardware/common/scpi_tcp.c --------------------------------------------*/
438
439SR_PRIV struct sr_scpi_dev_inst *scpi_tcp_dev_inst_new(const char *address,
440 const char *port);
441
442/*--- hardware/common/scpi_usbtmc.c -----------------------------------------*/
443
444SR_PRIV struct sr_scpi_dev_inst *scpi_usbtmc_dev_inst_new(const char *device);
445
446/*--- hardware/common/dmm/es519xx.c -----------------------------------------*/
447
448/**
449 * All 11-byte es519xx chips repeat each block twice for each conversion cycle
450 * so always read 2 blocks at a time.
451 */
452#define ES519XX_11B_PACKET_SIZE (11 * 2)
453#define ES519XX_14B_PACKET_SIZE 14
454
455struct es519xx_info {
456 gboolean is_judge, is_voltage, is_auto, is_micro, is_current;
457 gboolean is_milli, is_resistance, is_continuity, is_diode;
458 gboolean is_frequency, is_rpm, is_capacitance, is_duty_cycle;
459 gboolean is_temperature, is_celsius, is_fahrenheit;
460 gboolean is_adp0, is_adp1, is_adp2, is_adp3;
461 gboolean is_sign, is_batt, is_ol, is_pmax, is_pmin, is_apo;
462 gboolean is_dc, is_ac, is_vahz, is_min, is_max, is_rel, is_hold;
463 gboolean is_digit4, is_ul, is_vasel, is_vbar, is_lpf1, is_lpf0, is_rmr;
464 uint32_t baudrate;
465 int packet_size;
466 gboolean alt_functions, fivedigits, clampmeter, selectable_lpf;
467};
468
469SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf);
470SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval,
471 struct sr_datafeed_analog *analog, void *info);
472SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf);
473SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
474 float *floatval, struct sr_datafeed_analog *analog, void *info);
475SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf);
476SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf,
477 float *floatval, struct sr_datafeed_analog *analog, void *info);
478SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf);
479SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t *buf, float *floatval,
480 struct sr_datafeed_analog *analog, void *info);
481SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf);
482SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t *buf, float *floatval,
483 struct sr_datafeed_analog *analog, void *info);
484SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf);
485SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf,
486 float *floatval, struct sr_datafeed_analog *analog, void *info);
487
488/*--- hardware/common/dmm/fs9922.c ------------------------------------------*/
489
490#define FS9922_PACKET_SIZE 14
491
492struct fs9922_info {
493 gboolean is_auto, is_dc, is_ac, is_rel, is_hold, is_bpn, is_z1, is_z2;
494 gboolean is_max, is_min, is_apo, is_bat, is_nano, is_z3, is_micro;
495 gboolean is_milli, is_kilo, is_mega, is_beep, is_diode, is_percent;
496 gboolean is_z4, is_volt, is_ampere, is_ohm, is_hfe, is_hertz, is_farad;
497 gboolean is_celsius, is_fahrenheit;
498 int bargraph_sign, bargraph_value;
499};
500
501SR_PRIV gboolean sr_fs9922_packet_valid(const uint8_t *buf);
502SR_PRIV int sr_fs9922_parse(const uint8_t *buf, float *floatval,
503 struct sr_datafeed_analog *analog, void *info);
504SR_PRIV void sr_fs9922_z1_diode(struct sr_datafeed_analog *analog, void *info);
505
506/*--- hardware/common/dmm/fs9721.c ------------------------------------------*/
507
508#define FS9721_PACKET_SIZE 14
509
510struct fs9721_info {
511 gboolean is_ac, is_dc, is_auto, is_rs232, is_micro, is_nano, is_kilo;
512 gboolean is_diode, is_milli, is_percent, is_mega, is_beep, is_farad;
513 gboolean is_ohm, is_rel, is_hold, is_ampere, is_volt, is_hz, is_bat;
514 gboolean is_c2c1_11, is_c2c1_10, is_c2c1_01, is_c2c1_00, is_sign;
515};
516
517SR_PRIV gboolean sr_fs9721_packet_valid(const uint8_t *buf);
518SR_PRIV int sr_fs9721_parse(const uint8_t *buf, float *floatval,
519 struct sr_datafeed_analog *analog, void *info);
520SR_PRIV void sr_fs9721_00_temp_c(struct sr_datafeed_analog *analog, void *info);
521SR_PRIV void sr_fs9721_01_temp_c(struct sr_datafeed_analog *analog, void *info);
522SR_PRIV void sr_fs9721_10_temp_c(struct sr_datafeed_analog *analog, void *info);
523SR_PRIV void sr_fs9721_01_10_temp_f_c(struct sr_datafeed_analog *analog, void *info);
524SR_PRIV void sr_fs9721_max_c_min(struct sr_datafeed_analog *analog, void *info);
525
526/*--- hardware/common/dmm/m2110.c -----------------------------------------*/
527
528#define BBCGM_M2110_PACKET_SIZE 9
529
530SR_PRIV gboolean sr_m2110_packet_valid(const uint8_t *buf);
531SR_PRIV int sr_m2110_parse(const uint8_t *buf, float *floatval,
532 struct sr_datafeed_analog *analog, void *info);
533
534/*--- hardware/common/dmm/metex14.c -----------------------------------------*/
535
536#define METEX14_PACKET_SIZE 14
537
538struct metex14_info {
539 gboolean is_ac, is_dc, is_resistance, is_capacity, is_temperature;
540 gboolean is_diode, is_frequency, is_ampere, is_volt, is_farad;
541 gboolean is_hertz, is_ohm, is_celsius, is_pico, is_nano, is_micro;
542 gboolean is_milli, is_kilo, is_mega, is_gain, is_decibel, is_hfe;
543 gboolean is_unitless;
544};
545
546#ifdef HAVE_LIBSERIALPORT
547SR_PRIV int sr_metex14_packet_request(struct sr_serial_dev_inst *serial);
548#endif
549SR_PRIV gboolean sr_metex14_packet_valid(const uint8_t *buf);
550SR_PRIV int sr_metex14_parse(const uint8_t *buf, float *floatval,
551 struct sr_datafeed_analog *analog, void *info);
552
553/*--- hardware/common/dmm/rs9lcd.c ------------------------------------------*/
554
555#define RS9LCD_PACKET_SIZE 9
556
557/* Dummy info struct. The parser does not use it. */
558struct rs9lcd_info { int dummy; };
559
560SR_PRIV gboolean sr_rs9lcd_packet_valid(const uint8_t *buf);
561SR_PRIV int sr_rs9lcd_parse(const uint8_t *buf, float *floatval,
562 struct sr_datafeed_analog *analog, void *info);
563
564#endif
Hardware access and backend lib