2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 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/>.
21 #include "libsigrok.h"
22 #include "libsigrok-internal.h"
23 #include "agilent-dmm.h"
29 static void dispatch(const struct sr_dev_inst *sdi)
31 struct dev_context *devc;
32 const struct agdmm_job *jobs;
37 jobs = devc->profile->jobs;
38 now = g_get_monotonic_time() / 1000;
39 for (i = 0; (&jobs[i])->interval; i++) {
40 if (now - devc->jobqueue[i] > (&jobs[i])->interval) {
41 sr_spew("Running job %d.", i);
42 (&jobs[i])->send(sdi);
43 devc->jobqueue[i] = now;
48 static void receive_line(const struct sr_dev_inst *sdi)
50 struct dev_context *devc;
51 const struct agdmm_recv *recvs, *recv;
59 while (devc->buflen) {
60 if (*(devc->buf + devc->buflen - 1) == '\r'
61 || *(devc->buf + devc->buflen - 1) == '\n')
62 *(devc->buf + --devc->buflen) = '\0';
66 sr_spew("Received '%s'.", devc->buf);
69 recvs = devc->profile->recvs;
70 for (i = 0; (&recvs[i])->recv_regex; i++) {
71 reg = g_regex_new((&recvs[i])->recv_regex, 0, 0, NULL);
72 if (g_regex_match(reg, (char *)devc->buf, 0, &match)) {
76 g_match_info_unref(match);
80 recv->recv(sdi, match);
81 g_match_info_unref(match);
84 sr_dbg("Unknown line '%s'.", devc->buf);
90 SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
92 struct sr_dev_inst *sdi;
93 struct dev_context *devc;
94 struct sr_serial_dev_inst *serial;
102 if (!(devc = sdi->priv))
106 if (revents == G_IO_IN) {
107 /* Serial data arrived. */
108 while (AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
109 len = serial_read_nonblocking(serial, devc->buf + devc->buflen, 1);
113 *(devc->buf + devc->buflen) = '\0';
114 if (*(devc->buf + devc->buflen - 1) == '\n') {
124 if (devc->limit_samples && devc->num_samples >= devc->limit_samples)
125 sdi->driver->dev_acquisition_stop(sdi, cb_data);
130 static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
132 struct sr_serial_dev_inst *serial;
137 sr_spew("Sending '%s'.", cmd);
138 strncpy(buf, cmd, 28);
139 if (!strncmp(buf, "*IDN?", 5))
142 strcat(buf, "\n\r\n");
143 if (serial_write_blocking(serial, buf, strlen(buf), SERIAL_WRITE_TIMEOUT_MS) < (int)strlen(buf)) {
144 sr_err("Failed to send.");
151 static int send_stat(const struct sr_dev_inst *sdi)
153 return agdmm_send(sdi, "STAT?");
156 static int recv_stat_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
158 struct dev_context *devc;
162 s = g_match_info_fetch(match, 1);
163 sr_spew("STAT response '%s'.", s);
165 /* Max, Min or Avg mode -- no way to tell which, so we'll
166 * set both flags to denote it's not a normal measurement. */
168 devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
170 devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
173 devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
175 devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
177 /* Triggered or auto hold modes. */
178 if (s[2] == '1' || s[3] == '1')
179 devc->cur_mqflags |= SR_MQFLAG_HOLD;
181 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
185 devc->mode_tempaux = TRUE;
187 devc->mode_tempaux = FALSE;
189 /* Continuity mode. */
191 devc->mode_continuity = TRUE;
193 devc->mode_continuity = FALSE;
200 static int recv_stat_u124x(const struct sr_dev_inst *sdi, GMatchInfo *match)
202 struct dev_context *devc;
206 s = g_match_info_fetch(match, 1);
207 sr_spew("STAT response '%s'.", s);
209 /* Max, Min or Avg mode -- no way to tell which, so we'll
210 * set both flags to denote it's not a normal measurement. */
212 devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
214 devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
217 devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
219 devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
223 devc->cur_mqflags |= SR_MQFLAG_HOLD;
225 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
232 static int recv_stat_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
234 struct dev_context *devc;
238 s = g_match_info_fetch(match, 1);
239 sr_spew("STAT response '%s'.", s);
241 /* Peak hold mode. */
243 devc->cur_mqflags |= SR_MQFLAG_MAX;
245 devc->cur_mqflags &= ~SR_MQFLAG_MAX;
247 /* Triggered hold mode. */
249 devc->cur_mqflags |= SR_MQFLAG_HOLD;
251 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
258 static int send_fetc(const struct sr_dev_inst *sdi)
260 return agdmm_send(sdi, "FETC?");
263 static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
265 struct dev_context *devc;
266 struct sr_datafeed_packet packet;
267 struct sr_datafeed_analog analog;
272 sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
275 if (devc->cur_mq == -1)
276 /* Haven't seen configuration yet, so can't know what
277 * the fetched float means. Not really an error, we'll
278 * get metadata soon enough. */
281 s = g_match_info_get_string(match);
282 if (!strcmp(s, "-9.90000000E+37") || !strcmp(s, "+9.90000000E+37")) {
283 /* An invalid measurement shows up on the display as "O.L", but
284 * comes through like this. Since comparing 38-digit floats
285 * is rather problematic, we'll cut through this here. */
288 mstr = g_match_info_fetch(match, 1);
289 if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
291 sr_dbg("Invalid float.");
295 if (devc->cur_divider > 0)
296 fvalue /= devc->cur_divider;
299 memset(&analog, 0, sizeof(struct sr_datafeed_analog));
300 analog.mq = devc->cur_mq;
301 analog.unit = devc->cur_unit;
302 analog.mqflags = devc->cur_mqflags;
303 analog.channels = sdi->channels;
304 analog.num_samples = 1;
305 analog.data = &fvalue;
306 packet.type = SR_DF_ANALOG;
307 packet.payload = &analog;
308 sr_session_send(devc->cb_data, &packet);
315 static int send_conf(const struct sr_dev_inst *sdi)
317 return agdmm_send(sdi, "CONF?");
320 static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
322 struct dev_context *devc;
325 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
327 mstr = g_match_info_fetch(match, 1);
328 if (!strcmp(mstr, "V")) {
329 devc->cur_mq = SR_MQ_VOLTAGE;
330 devc->cur_unit = SR_UNIT_VOLT;
331 devc->cur_mqflags = 0;
332 devc->cur_divider = 0;
333 } else if (!strcmp(mstr, "MV")) {
334 if (devc->mode_tempaux) {
335 devc->cur_mq = SR_MQ_TEMPERATURE;
336 /* No way to detect whether Fahrenheit or Celsius
337 * is used, so we'll just default to Celsius. */
338 devc->cur_unit = SR_UNIT_CELSIUS;
339 devc->cur_mqflags = 0;
340 devc->cur_divider = 0;
342 devc->cur_mq = SR_MQ_VOLTAGE;
343 devc->cur_unit = SR_UNIT_VOLT;
344 devc->cur_mqflags = 0;
345 devc->cur_divider = 1000;
347 } else if (!strcmp(mstr, "A")) {
348 devc->cur_mq = SR_MQ_CURRENT;
349 devc->cur_unit = SR_UNIT_AMPERE;
350 devc->cur_mqflags = 0;
351 devc->cur_divider = 0;
352 } else if (!strcmp(mstr, "UA")) {
353 devc->cur_mq = SR_MQ_CURRENT;
354 devc->cur_unit = SR_UNIT_AMPERE;
355 devc->cur_mqflags = 0;
356 devc->cur_divider = 1000000;
357 } else if (!strcmp(mstr, "FREQ")) {
358 devc->cur_mq = SR_MQ_FREQUENCY;
359 devc->cur_unit = SR_UNIT_HERTZ;
360 devc->cur_mqflags = 0;
361 devc->cur_divider = 0;
362 } else if (!strcmp(mstr, "RES")) {
363 if (devc->mode_continuity) {
364 devc->cur_mq = SR_MQ_CONTINUITY;
365 devc->cur_unit = SR_UNIT_BOOLEAN;
367 devc->cur_mq = SR_MQ_RESISTANCE;
368 devc->cur_unit = SR_UNIT_OHM;
370 devc->cur_mqflags = 0;
371 devc->cur_divider = 0;
372 } else if (!strcmp(mstr, "CAP")) {
373 devc->cur_mq = SR_MQ_CAPACITANCE;
374 devc->cur_unit = SR_UNIT_FARAD;
375 devc->cur_mqflags = 0;
376 devc->cur_divider = 0;
378 sr_dbg("Unknown first argument.");
381 if (g_match_info_get_match_count(match) == 4) {
382 mstr = g_match_info_fetch(match, 3);
383 /* Third value, if present, is always AC or DC. */
384 if (!strcmp(mstr, "AC")) {
385 devc->cur_mqflags |= SR_MQFLAG_AC;
386 if (devc->cur_mq == SR_MQ_VOLTAGE)
387 devc->cur_mqflags |= SR_MQFLAG_RMS;
388 } else if (!strcmp(mstr, "DC")) {
389 devc->cur_mqflags |= SR_MQFLAG_DC;
391 sr_dbg("Unknown first argument '%s'.", mstr);
395 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
400 static int recv_conf_u124x_5x(const struct sr_dev_inst *sdi, GMatchInfo *match)
402 struct dev_context *devc;
405 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
407 mstr = g_match_info_fetch(match, 1);
408 if (!strncmp(mstr, "VOLT", 4)) {
409 devc->cur_mq = SR_MQ_VOLTAGE;
410 devc->cur_unit = SR_UNIT_VOLT;
411 devc->cur_mqflags = 0;
412 devc->cur_divider = 0;
413 if (mstr[4] == ':') {
414 if (!strncmp(mstr + 5, "AC", 2)) {
415 devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
416 } else if (!strncmp(mstr + 5, "DC", 2)) {
417 devc->cur_mqflags |= SR_MQFLAG_DC;
418 } else if (!strncmp(mstr + 5, "ACDC", 4)) {
420 devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
422 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
425 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
426 } else if (!strcmp(mstr, "CURR")) {
427 devc->cur_mq = SR_MQ_CURRENT;
428 devc->cur_unit = SR_UNIT_AMPERE;
429 devc->cur_mqflags = 0;
430 devc->cur_divider = 0;
431 } else if (!strcmp(mstr, "RES")) {
432 devc->cur_mq = SR_MQ_RESISTANCE;
433 devc->cur_unit = SR_UNIT_OHM;
434 devc->cur_mqflags = 0;
435 devc->cur_divider = 0;
436 } else if (!strcmp(mstr, "CAP")) {
437 devc->cur_mq = SR_MQ_CAPACITANCE;
438 devc->cur_unit = SR_UNIT_FARAD;
439 devc->cur_mqflags = 0;
440 devc->cur_divider = 0;
441 } else if (!strcmp(mstr, "FREQ")) {
442 devc->cur_mq = SR_MQ_FREQUENCY;
443 devc->cur_unit = SR_UNIT_HERTZ;
444 devc->cur_mqflags = 0;
445 devc->cur_divider = 0;
446 } else if (!strcmp(mstr, "CONT")) {
447 devc->cur_mq = SR_MQ_CONTINUITY;
448 devc->cur_unit = SR_UNIT_BOOLEAN;
449 devc->cur_mqflags = 0;
450 devc->cur_divider = 0;
451 } else if (!strncmp(mstr, "T1", 2) || !strncmp(mstr, "T2", 2)) {
452 devc->cur_mq = SR_MQ_TEMPERATURE;
453 m2 = g_match_info_fetch(match, 2);
454 if (!strcmp(m2, "FAR"))
455 devc->cur_unit = SR_UNIT_FAHRENHEIT;
457 devc->cur_unit = SR_UNIT_CELSIUS;
459 devc->cur_mqflags = 0;
460 devc->cur_divider = 0;
461 } else if (!strcmp(mstr, "SCOU")) {
463 * Switch counter, not supported. Not sure what values
464 * come from FETC in this mode, or how they would map
467 } else if (!strncmp(mstr, "CPER:", 5)) {
468 devc->cur_mq = SR_MQ_CURRENT;
469 devc->cur_unit = SR_UNIT_PERCENTAGE;
470 devc->cur_mqflags = 0;
471 devc->cur_divider = 0;
473 sr_dbg("Unknown first argument '%s'.", mstr);
480 static int recv_conf(const struct sr_dev_inst *sdi, GMatchInfo *match)
482 struct dev_context *devc;
485 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
487 mstr = g_match_info_fetch(match, 1);
488 if (!strcmp(mstr, "DIOD")) {
489 devc->cur_mq = SR_MQ_VOLTAGE;
490 devc->cur_unit = SR_UNIT_VOLT;
491 devc->cur_mqflags = SR_MQFLAG_DIODE;
492 devc->cur_divider = 0;
494 sr_dbg("Unknown single argument.");
500 /* This comes in whenever the rotary switch is changed to a new position.
501 * We could use it to determine the major measurement mode, but we already
502 * have the output of CONF? for that, which is more detailed. However
503 * we do need to catch this here, or it'll show up in some other output. */
504 static int recv_switch(const struct sr_dev_inst *sdi, GMatchInfo *match)
508 sr_spew("Switch '%s'.", g_match_info_get_string(match));
513 /* Poll keys/switches and values at 7Hz, mode at 1Hz. */
514 SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
521 SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
522 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
523 { "^\\*([0-9])$", recv_switch },
524 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
525 { "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", recv_conf_u123x },
526 { "^\"(RES|CAP),(\\d)\"$", recv_conf_u123x},
527 { "^\"(DIOD)\"$", recv_conf },
531 SR_PRIV const struct agdmm_recv agdmm_recvs_u124x[] = {
532 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u124x },
533 { "^\\*([0-9])$", recv_switch },
534 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
535 { "^\"(VOLT|CURR|RES|CAP|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
536 { "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
537 { "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
538 { "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
539 { "^\"(DIOD)\"$", recv_conf },
543 SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
544 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
545 { "^\\*([0-9])$", recv_switch },
546 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
547 { "^\"(VOLT|CURR|RES|CAP|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
548 { "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
549 { "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
550 { "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
551 { "^\"(DIOD)\"$", recv_conf },