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agilent-dmm: add support for reading secondary display and temperature
[libsigrok.git] / src / hardware / agilent-dmm / protocol.c
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <config.h>
21#include <glib.h>
22#include <stdlib.h>
23#include <stdarg.h>
24#include <string.h>
25#include <math.h>
26#include <libsigrok/libsigrok.h>
27#include "libsigrok-internal.h"
28#include "protocol.h"
29
30static void dispatch(const struct sr_dev_inst *sdi)
31{
32 struct dev_context *devc;
33 const struct agdmm_job *jobs;
34 int64_t now;
35 int i;
36
37 devc = sdi->priv;
38 jobs = devc->profile->jobs;
39 now = g_get_monotonic_time() / 1000;
40 for (i = 0; (&jobs[i])->interval; i++) {
41 if (now - devc->jobqueue[i] > (&jobs[i])->interval) {
42 sr_spew("Running job %d.", i);
43 (&jobs[i])->send(sdi);
44 devc->jobqueue[i] = now;
45 }
46 }
47}
48
49static void receive_line(const struct sr_dev_inst *sdi)
50{
51 struct dev_context *devc;
52 const struct agdmm_recv *recvs, *recv;
53 GRegex *reg;
54 GMatchInfo *match;
55 int i;
56
57 devc = sdi->priv;
58
59 /* Strip CRLF */
60 while (devc->buflen) {
61 if (*(devc->buf + devc->buflen - 1) == '\r'
62 || *(devc->buf + devc->buflen - 1) == '\n')
63 *(devc->buf + --devc->buflen) = '\0';
64 else
65 break;
66 }
67 sr_spew("Received '%s'.", devc->buf);
68
69 recv = NULL;
70 recvs = devc->profile->recvs;
71 for (i = 0; (&recvs[i])->recv_regex; i++) {
72 reg = g_regex_new((&recvs[i])->recv_regex, 0, 0, NULL);
73 if (g_regex_match(reg, (char *)devc->buf, 0, &match)) {
74 recv = &recvs[i];
75 break;
76 }
77 g_match_info_unref(match);
78 g_regex_unref(reg);
79 }
80 if (recv) {
81 recv->recv(sdi, match);
82 g_match_info_unref(match);
83 g_regex_unref(reg);
84 } else
85 sr_dbg("Unknown line '%s'.", devc->buf);
86
87 /* Done with this. */
88 devc->buflen = 0;
89}
90
91SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
92{
93 struct sr_dev_inst *sdi;
94 struct dev_context *devc;
95 struct sr_serial_dev_inst *serial;
96 int len;
97
98 (void)fd;
99
100 if (!(sdi = cb_data))
101 return TRUE;
102
103 if (!(devc = sdi->priv))
104 return TRUE;
105
106 serial = sdi->conn;
107 if (revents == G_IO_IN) {
108 /* Serial data arrived. */
109 while (AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
110 len = serial_read_nonblocking(serial, devc->buf + devc->buflen, 1);
111 if (len < 1)
112 break;
113 devc->buflen += len;
114 *(devc->buf + devc->buflen) = '\0';
115 if (*(devc->buf + devc->buflen - 1) == '\n') {
116 /* End of line */
117 receive_line(sdi);
118 break;
119 }
120 }
121 }
122
123 dispatch(sdi);
124
125 if (sr_sw_limits_check(&devc->limits))
126 sdi->driver->dev_acquisition_stop(sdi);
127
128 return TRUE;
129}
130
131static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd, ...)
132{
133 struct sr_serial_dev_inst *serial;
134 va_list args;
135 char buf[32];
136
137 serial = sdi->conn;
138
139 va_start(args, cmd);
140 vsnprintf(buf, sizeof(buf)-3, cmd, args);
141 va_end(args);
142 sr_spew("Sending '%s'.", buf);
143 if (!strncmp(buf, "*IDN?", 5))
144 strcat(buf, "\r\n");
145 else
146 strcat(buf, "\n\r\n");
147 if (serial_write_blocking(serial, buf, strlen(buf), SERIAL_WRITE_TIMEOUT_MS) < (int)strlen(buf)) {
148 sr_err("Failed to send.");
149 return SR_ERR;
150 }
151
152 return SR_OK;
153}
154
155static int send_stat(const struct sr_dev_inst *sdi)
156{
157 return agdmm_send(sdi, "STAT?");
158}
159
160static int recv_stat_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
161{
162 struct dev_context *devc;
163 char *s;
164
165 devc = sdi->priv;
166 s = g_match_info_fetch(match, 1);
167 sr_spew("STAT response '%s'.", s);
168
169 /* Max, Min or Avg mode -- no way to tell which, so we'll
170 * set both flags to denote it's not a normal measurement. */
171 if (s[0] == '1')
172 devc->cur_mqflags[0] |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
173 else
174 devc->cur_mqflags[0] &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
175
176 if (s[1] == '1')
177 devc->cur_mqflags[0] |= SR_MQFLAG_RELATIVE;
178 else
179 devc->cur_mqflags[0] &= ~SR_MQFLAG_RELATIVE;
180
181 /* Triggered or auto hold modes. */
182 if (s[2] == '1' || s[3] == '1')
183 devc->cur_mqflags[0] |= SR_MQFLAG_HOLD;
184 else
185 devc->cur_mqflags[0] &= ~SR_MQFLAG_HOLD;
186
187 /* Temp/aux mode. */
188 if (s[7] == '1')
189 devc->mode_tempaux = TRUE;
190 else
191 devc->mode_tempaux = FALSE;
192
193 /* Continuity mode. */
194 if (s[16] == '1')
195 devc->mode_continuity = TRUE;
196 else
197 devc->mode_continuity = FALSE;
198
199 g_free(s);
200
201 return SR_OK;
202}
203
204static int recv_stat_u124x(const struct sr_dev_inst *sdi, GMatchInfo *match)
205{
206 struct dev_context *devc;
207 char *s;
208
209 devc = sdi->priv;
210 s = g_match_info_fetch(match, 1);
211 sr_spew("STAT response '%s'.", s);
212
213 /* Max, Min or Avg mode -- no way to tell which, so we'll
214 * set both flags to denote it's not a normal measurement. */
215 if (s[0] == '1')
216 devc->cur_mqflags[0] |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
217 else
218 devc->cur_mqflags[0] &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
219
220 if (s[1] == '1')
221 devc->cur_mqflags[0] |= SR_MQFLAG_RELATIVE;
222 else
223 devc->cur_mqflags[0] &= ~SR_MQFLAG_RELATIVE;
224
225 /* Hold mode. */
226 if (s[7] == '1')
227 devc->cur_mqflags[0] |= SR_MQFLAG_HOLD;
228 else
229 devc->cur_mqflags[0] &= ~SR_MQFLAG_HOLD;
230
231 g_free(s);
232
233 return SR_OK;
234}
235
236static int recv_stat_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
237{
238 struct dev_context *devc;
239 char *s;
240
241 devc = sdi->priv;
242 s = g_match_info_fetch(match, 1);
243 sr_spew("STAT response '%s'.", s);
244
245 /* Peak hold mode. */
246 if (s[4] == '1')
247 devc->cur_mqflags[0] |= SR_MQFLAG_MAX;
248 else
249 devc->cur_mqflags[0] &= ~SR_MQFLAG_MAX;
250
251 /* Triggered hold mode. */
252 if (s[7] == '1')
253 devc->cur_mqflags[0] |= SR_MQFLAG_HOLD;
254 else
255 devc->cur_mqflags[0] &= ~SR_MQFLAG_HOLD;
256
257 g_free(s);
258
259 return SR_OK;
260}
261
262static int recv_stat_u128x(const struct sr_dev_inst *sdi, GMatchInfo *match)
263{
264 struct dev_context *devc;
265 char *s;
266
267 devc = sdi->priv;
268 s = g_match_info_fetch(match, 1);
269 sr_spew("STAT response '%s'.", s);
270
271 /* Max, Min or Avg mode -- no way to tell which, so we'll
272 * set both flags to denote it's not a normal measurement. */
273 if (s[0] == '1')
274 devc->cur_mqflags[0] |= SR_MQFLAG_MAX | SR_MQFLAG_MIN | SR_MQFLAG_AVG;
275 else
276 devc->cur_mqflags[0] &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN | SR_MQFLAG_AVG);
277
278 /* Peak hold mode. */
279 if (s[4] == '4')
280 devc->cur_mqflags[0] |= SR_MQFLAG_MAX;
281 else
282 devc->cur_mqflags[0] &= ~SR_MQFLAG_MAX;
283
284 /* Null function. */
285 if (s[1] == '1')
286 devc->cur_mqflags[0] |= SR_MQFLAG_RELATIVE;
287 else
288 devc->cur_mqflags[0] &= ~SR_MQFLAG_RELATIVE;
289
290 /* Triggered or auto hold modes. */
291 if (s[7] == '1' || s[11] == '1')
292 devc->cur_mqflags[0] |= SR_MQFLAG_HOLD;
293 else
294 devc->cur_mqflags[0] &= ~SR_MQFLAG_HOLD;
295
296 g_free(s);
297
298 return SR_OK;
299}
300
301static int send_fetc(const struct sr_dev_inst *sdi)
302{
303 struct dev_context *devc;
304 devc = sdi->priv;
305 if (devc->mode_squarewave)
306 return SR_OK;
307 devc->cur_channel = sr_next_enabled_channel(sdi, devc->cur_channel);
308 if (devc->cur_channel->index > 0)
309 return agdmm_send(sdi, "FETC? @%d", devc->cur_channel->index + 1);
310 else
311 return agdmm_send(sdi, "FETC?");
312}
313
314static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
315{
316 struct dev_context *devc;
317 struct sr_datafeed_packet packet;
318 struct sr_datafeed_analog analog;
319 struct sr_analog_encoding encoding;
320 struct sr_analog_meaning meaning;
321 struct sr_analog_spec spec;
322 float fvalue;
323 const char *s;
324 char *mstr;
325 int i;
326
327 sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
328 devc = sdi->priv;
329 i = devc->cur_channel->index;
330
331 if (devc->cur_mq[i] == -1)
332 /* Haven't seen configuration yet, so can't know what
333 * the fetched float means. Not really an error, we'll
334 * get metadata soon enough. */
335 return SR_OK;
336
337 s = g_match_info_get_string(match);
338 if (!strcmp(s, "-9.90000000E+37") || !strcmp(s, "+9.90000000E+37")) {
339 /* An invalid measurement shows up on the display as "O.L", but
340 * comes through like this. Since comparing 38-digit floats
341 * is rather problematic, we'll cut through this here. */
342 fvalue = NAN;
343 } else {
344 mstr = g_match_info_fetch(match, 1);
345 if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
346 g_free(mstr);
347 sr_dbg("Invalid float.");
348 return SR_ERR;
349 }
350 g_free(mstr);
351 if (devc->cur_exponent[i] != 0)
352 fvalue *= powf(10, devc->cur_exponent[i]);
353 }
354
355 sr_analog_init(&analog, &encoding, &meaning, &spec,
356 devc->cur_digits[i] - devc->cur_exponent[i]);
357 analog.meaning->mq = devc->cur_mq[i];
358 analog.meaning->unit = devc->cur_unit[i];
359 analog.meaning->mqflags = devc->cur_mqflags[i];
360 analog.meaning->channels = g_slist_append(NULL, devc->cur_channel);
361 analog.num_samples = 1;
362 analog.data = &fvalue;
363 encoding.digits = devc->cur_encoding[i] - devc->cur_exponent[i];
364 packet.type = SR_DF_ANALOG;
365 packet.payload = &analog;
366 sr_session_send(sdi, &packet);
367 g_slist_free(analog.meaning->channels);
368
369 sr_sw_limits_update_samples_read(&devc->limits, 1);
370
371 return SR_OK;
372}
373
374static int send_conf(const struct sr_dev_inst *sdi)
375{
376 struct dev_context *devc = sdi->priv;
377
378 devc->cur_conf = sr_next_enabled_channel(sdi, devc->cur_conf);
379
380 /* Do not try to send CONF? for internal temperature channel. */
381 if (devc->cur_conf->index == MAX(devc->profile->nb_channels - 1, 1))
382 devc->cur_conf = sr_next_enabled_channel(sdi, devc->cur_conf);
383 if (devc->cur_conf->index == MAX(devc->profile->nb_channels - 1, 1))
384 return SR_ERR_NA;
385
386 if (devc->cur_conf->index > 0)
387 return agdmm_send(sdi, "CONF? @%d", devc->cur_conf->index + 1);
388 else
389 return agdmm_send(sdi, "CONF?");
390}
391
392static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
393{
394 struct dev_context *devc;
395 char *mstr, *rstr;
396 int i, resolution;
397
398 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
399 devc = sdi->priv;
400 i = devc->cur_conf->index;
401
402 rstr = g_match_info_fetch(match, 2);
403 if (rstr)
404 sr_atoi(rstr, &resolution);
405 g_free(rstr);
406
407 mstr = g_match_info_fetch(match, 1);
408 if (!strcmp(mstr, "V")) {
409 devc->cur_mq[i] = SR_MQ_VOLTAGE;
410 devc->cur_unit[i] = SR_UNIT_VOLT;
411 devc->cur_mqflags[i] = 0;
412 devc->cur_exponent[i] = 0;
413 devc->cur_digits[i] = 4 - resolution;
414 } else if (!strcmp(mstr, "MV")) {
415 if (devc->mode_tempaux) {
416 devc->cur_mq[i] = SR_MQ_TEMPERATURE;
417 /* No way to detect whether Fahrenheit or Celsius
418 * is used, so we'll just default to Celsius. */
419 devc->cur_unit[i] = SR_UNIT_CELSIUS;
420 devc->cur_mqflags[i] = 0;
421 devc->cur_exponent[i] = 0;
422 devc->cur_digits[i] = 1;
423 } else {
424 devc->cur_mq[i] = SR_MQ_VOLTAGE;
425 devc->cur_unit[i] = SR_UNIT_VOLT;
426 devc->cur_mqflags[i] = 0;
427 devc->cur_exponent[i] = -3;
428 devc->cur_digits[i] = 5 - resolution;
429 }
430 } else if (!strcmp(mstr, "A")) {
431 devc->cur_mq[i] = SR_MQ_CURRENT;
432 devc->cur_unit[i] = SR_UNIT_AMPERE;
433 devc->cur_mqflags[i] = 0;
434 devc->cur_exponent[i] = 0;
435 devc->cur_digits[i] = 3 - resolution;
436 } else if (!strcmp(mstr, "UA")) {
437 devc->cur_mq[i] = SR_MQ_CURRENT;
438 devc->cur_unit[i] = SR_UNIT_AMPERE;
439 devc->cur_mqflags[i] = 0;
440 devc->cur_exponent[i] = -6;
441 devc->cur_digits[i] = 8 - resolution;
442 } else if (!strcmp(mstr, "FREQ")) {
443 devc->cur_mq[i] = SR_MQ_FREQUENCY;
444 devc->cur_unit[i] = SR_UNIT_HERTZ;
445 devc->cur_mqflags[i] = 0;
446 devc->cur_exponent[i] = 0;
447 devc->cur_digits[i] = 2 - resolution;
448 } else if (!strcmp(mstr, "RES")) {
449 if (devc->mode_continuity) {
450 devc->cur_mq[i] = SR_MQ_CONTINUITY;
451 devc->cur_unit[i] = SR_UNIT_BOOLEAN;
452 } else {
453 devc->cur_mq[i] = SR_MQ_RESISTANCE;
454 devc->cur_unit[i] = SR_UNIT_OHM;
455 }
456 devc->cur_mqflags[i] = 0;
457 devc->cur_exponent[i] = 0;
458 devc->cur_digits[i] = 1 - resolution;
459 } else if (!strcmp(mstr, "DIOD")) {
460 devc->cur_mq[i] = SR_MQ_VOLTAGE;
461 devc->cur_unit[i] = SR_UNIT_VOLT;
462 devc->cur_mqflags[i] = SR_MQFLAG_DIODE;
463 devc->cur_exponent[i] = 0;
464 devc->cur_digits[i] = 3;
465 } else if (!strcmp(mstr, "CAP")) {
466 devc->cur_mq[i] = SR_MQ_CAPACITANCE;
467 devc->cur_unit[i] = SR_UNIT_FARAD;
468 devc->cur_mqflags[i] = 0;
469 devc->cur_exponent[i] = 0;
470 devc->cur_digits[i] = 9 - resolution;
471 } else
472 sr_dbg("Unknown first argument.");
473 g_free(mstr);
474
475 /* This is based on guess, supposing similarity with other models. */
476 devc->cur_encoding[i] = devc->cur_digits[i] + 1;
477
478 if (g_match_info_get_match_count(match) == 4) {
479 mstr = g_match_info_fetch(match, 3);
480 /* Third value, if present, is always AC or DC. */
481 if (!strcmp(mstr, "AC")) {
482 devc->cur_mqflags[i] |= SR_MQFLAG_AC;
483 if (devc->cur_mq[i] == SR_MQ_VOLTAGE)
484 devc->cur_mqflags[i] |= SR_MQFLAG_RMS;
485 } else if (!strcmp(mstr, "DC")) {
486 devc->cur_mqflags[i] |= SR_MQFLAG_DC;
487 } else {
488 sr_dbg("Unknown first argument '%s'.", mstr);
489 }
490 g_free(mstr);
491 } else
492 devc->cur_mqflags[i] &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
493
494 return SR_OK;
495}
496
497static int recv_conf_u124x_5x(const struct sr_dev_inst *sdi, GMatchInfo *match)
498{
499 struct dev_context *devc;
500 char *mstr, *rstr, *m2;
501 int i, resolution;
502
503 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
504 devc = sdi->priv;
505 i = devc->cur_conf->index;
506
507 devc->mode_squarewave = 0;
508
509 rstr = g_match_info_fetch(match, 4);
510 if (rstr && sr_atoi(rstr, &resolution) == SR_OK) {
511 devc->cur_digits[i] = -resolution;
512 devc->cur_encoding[i] = -resolution + 1;
513 }
514 g_free(rstr);
515
516 mstr = g_match_info_fetch(match, 1);
517 if (!strncmp(mstr, "VOLT", 4)) {
518 devc->cur_mq[i] = SR_MQ_VOLTAGE;
519 devc->cur_unit[i] = SR_UNIT_VOLT;
520 devc->cur_mqflags[i] = 0;
521 devc->cur_exponent[i] = 0;
522 if (mstr[4] == ':') {
523 if (!strncmp(mstr + 5, "ACDC", 4)) {
524 /* AC + DC offset */
525 devc->cur_mqflags[i] |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
526 } else if (!strncmp(mstr + 5, "AC", 2)) {
527 devc->cur_mqflags[i] |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
528 } else if (!strncmp(mstr + 5, "DC", 2)) {
529 devc->cur_mqflags[i] |= SR_MQFLAG_DC;
530 }
531 } else
532 devc->cur_mqflags[i] |= SR_MQFLAG_DC;
533 } else if (!strncmp(mstr, "CURR", 4)) {
534 devc->cur_mq[i] = SR_MQ_CURRENT;
535 devc->cur_unit[i] = SR_UNIT_AMPERE;
536 devc->cur_mqflags[i] = 0;
537 devc->cur_exponent[i] = 0;
538 if (mstr[4] == ':') {
539 if (!strncmp(mstr + 5, "ACDC", 4)) {
540 /* AC + DC offset */
541 devc->cur_mqflags[i] |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
542 } else if (!strncmp(mstr + 5, "AC", 2)) {
543 devc->cur_mqflags[i] |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
544 } else if (!strncmp(mstr + 5, "DC", 2)) {
545 devc->cur_mqflags[i] |= SR_MQFLAG_DC;
546 }
547 } else
548 devc->cur_mqflags[i] |= SR_MQFLAG_DC;
549 } else if (!strcmp(mstr, "RES")) {
550 devc->cur_mq[i] = SR_MQ_RESISTANCE;
551 devc->cur_unit[i] = SR_UNIT_OHM;
552 devc->cur_mqflags[i] = 0;
553 devc->cur_exponent[i] = 0;
554 } else if (!strcmp(mstr, "COND")) {
555 devc->cur_mq[i] = SR_MQ_CONDUCTANCE;
556 devc->cur_unit[i] = SR_UNIT_SIEMENS;
557 devc->cur_mqflags[i] = 0;
558 devc->cur_exponent[i] = 0;
559 } else if (!strcmp(mstr, "CAP")) {
560 devc->cur_mq[i] = SR_MQ_CAPACITANCE;
561 devc->cur_unit[i] = SR_UNIT_FARAD;
562 devc->cur_mqflags[i] = 0;
563 devc->cur_exponent[i] = 0;
564 } else if (!strncmp(mstr, "FREQ", 4) || !strncmp(mstr, "FC1", 3)) {
565 devc->cur_mq[i] = SR_MQ_FREQUENCY;
566 devc->cur_unit[i] = SR_UNIT_HERTZ;
567 devc->cur_mqflags[i] = 0;
568 devc->cur_exponent[i] = 0;
569 } else if (!strcmp(mstr, "CONT")) {
570 devc->cur_mq[i] = SR_MQ_CONTINUITY;
571 devc->cur_unit[i] = SR_UNIT_BOOLEAN;
572 devc->cur_mqflags[i] = 0;
573 devc->cur_exponent[i] = 0;
574 } else if (!strcmp(mstr, "DIOD")) {
575 devc->cur_mq[i] = SR_MQ_VOLTAGE;
576 devc->cur_unit[i] = SR_UNIT_VOLT;
577 devc->cur_mqflags[i] = SR_MQFLAG_DIODE;
578 devc->cur_exponent[i] = 0;
579 devc->cur_digits[i] = 4;
580 devc->cur_encoding[i] = 5;
581 } else if (!strncmp(mstr, "T1", 2) || !strncmp(mstr, "T2", 2) ||
582 !strncmp(mstr, "TEMP", 2)) {
583 devc->cur_mq[i] = SR_MQ_TEMPERATURE;
584 m2 = g_match_info_fetch(match, 2);
585 if (!m2)
586 /*
587 * TEMP without param is for secondary display (channel P2)
588 * and is identical to channel P3, so discard it.
589 */
590 devc->cur_mq[i] = -1;
591 else if (!strcmp(m2, "FAR"))
592 devc->cur_unit[i] = SR_UNIT_FAHRENHEIT;
593 else
594 devc->cur_unit[i] = SR_UNIT_CELSIUS;
595 g_free(m2);
596 devc->cur_mqflags[i] = 0;
597 devc->cur_exponent[i] = 0;
598 devc->cur_digits[i] = 1;
599 devc->cur_encoding[i] = 2;
600 } else if (!strcmp(mstr, "SCOU")) {
601 /*
602 * Switch counter, not supported. Not sure what values
603 * come from FETC in this mode, or how they would map
604 * into libsigrok.
605 */
606 } else if (!strncmp(mstr, "CPER:", 5)) {
607 devc->cur_mq[i] = SR_MQ_CURRENT;
608 devc->cur_unit[i] = SR_UNIT_PERCENTAGE;
609 devc->cur_mqflags[i] = 0;
610 devc->cur_exponent[i] = 0;
611 devc->cur_digits[i] = 2;
612 devc->cur_encoding[i] = 3;
613 } else if (!strcmp(mstr, "SQU")) {
614 /*
615 * Square wave output, not supported. FETC just return
616 * an error in this mode, so don't even call it.
617 */
618 devc->mode_squarewave = 1;
619 } else {
620 sr_dbg("Unknown first argument '%s'.", mstr);
621 }
622 g_free(mstr);
623
624 return SR_OK;
625}
626
627/* This comes in whenever the rotary switch is changed to a new position.
628 * We could use it to determine the major measurement mode, but we already
629 * have the output of CONF? for that, which is more detailed. However
630 * we do need to catch this here, or it'll show up in some other output. */
631static int recv_switch(const struct sr_dev_inst *sdi, GMatchInfo *match)
632{
633 (void)sdi;
634
635 sr_spew("Switch '%s'.", g_match_info_get_string(match));
636
637 return SR_OK;
638}
639
640/* Poll keys/switches and values at 7Hz, mode at 1Hz. */
641SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
642 { 143, send_stat },
643 { 1000, send_conf },
644 { 143, send_fetc },
645 ALL_ZERO
646};
647
648SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
649 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
650 { "^\\*([0-9])$", recv_switch },
651 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
652 { "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", recv_conf_u123x },
653 { "^\"(RES|CAP),(\\d)\"$", recv_conf_u123x},
654 { "^\"(DIOD)\"$", recv_conf_u123x },
655 ALL_ZERO
656};
657
658SR_PRIV const struct agdmm_recv agdmm_recvs_u124x[] = {
659 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u124x },
660 { "^\\*([0-9])$", recv_switch },
661 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
662 { "^\"(VOLT|CURR|RES|CAP|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
663 { "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
664 { "^\"(CURR:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
665 { "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
666 { "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
667 { "^\"(DIOD)\"$", recv_conf_u124x_5x },
668 ALL_ZERO
669};
670
671SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
672 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
673 { "^\\*([0-9])$", recv_switch },
674 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
675 { "^\"(VOLT|CURR|RES|CAP|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
676 { "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
677 { "^\"(CURR:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
678 { "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
679 { "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
680 { "^\"(DIOD)\"$", recv_conf_u124x_5x },
681 ALL_ZERO
682};
683
684SR_PRIV const struct agdmm_recv agdmm_recvs_u128x[] = {
685 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u128x },
686 { "^\\*([0-9])$", recv_switch },
687 { "^([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))$", recv_fetc },
688 { "^\"(VOLT|CURR|RES|COND|CAP|FREQ|FC1|FC100) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
689 { "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
690 { "^\"(CURR:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
691 { "^\"(FREQ:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
692 { "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9]\\.[0-9]{8}E([-+][0-9]{2}))\"$", recv_conf_u124x_5x },
693 { "^\"(TEMP:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
694 { "^\"(DIOD|SQU|TEMP)\"$", recv_conf_u124x_5x },
695 ALL_ZERO
696};
Hardware access and backend lib