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(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))
140 strncat(buf, "\r\n", 32);
142 strncat(buf, "\n\r\n", 32);
143 if (serial_write(serial, buf, strlen(buf)) == -1) {
144 sr_err("Failed to send: %s.", strerror(errno));
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_u125x(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 /* Peak hold mode. */
211 devc->cur_mqflags |= SR_MQFLAG_MAX;
213 devc->cur_mqflags &= ~SR_MQFLAG_MAX;
215 /* Triggered hold mode. */
217 devc->cur_mqflags |= SR_MQFLAG_HOLD;
219 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
226 static int send_fetc(const struct sr_dev_inst *sdi)
228 return agdmm_send(sdi, "FETC?");
231 static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
233 struct dev_context *devc;
234 struct sr_datafeed_packet packet;
235 struct sr_datafeed_analog analog;
240 sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
243 if (devc->cur_mq == -1)
244 /* Haven't seen configuration yet, so can't know what
245 * the fetched float means. Not really an error, we'll
246 * get metadata soon enough. */
249 s = g_match_info_get_string(match);
250 if (!strcmp(s, "-9.90000000E+37") || !strcmp(s, "+9.90000000E+37")) {
251 /* An invalid measurement shows up on the display as "O.L", but
252 * comes through like this. Since comparing 38-digit floats
253 * is rather problematic, we'll cut through this here. */
256 mstr = g_match_info_fetch(match, 1);
257 if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
259 sr_dbg("Invalid float.");
263 if (devc->cur_divider > 0)
264 fvalue /= devc->cur_divider;
267 memset(&analog, 0, sizeof(struct sr_datafeed_analog));
268 analog.mq = devc->cur_mq;
269 analog.unit = devc->cur_unit;
270 analog.mqflags = devc->cur_mqflags;
271 analog.channels = sdi->channels;
272 analog.num_samples = 1;
273 analog.data = &fvalue;
274 packet.type = SR_DF_ANALOG;
275 packet.payload = &analog;
276 sr_session_send(devc->cb_data, &packet);
283 static int send_conf(const struct sr_dev_inst *sdi)
285 return agdmm_send(sdi, "CONF?");
288 static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
290 struct dev_context *devc;
293 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
295 mstr = g_match_info_fetch(match, 1);
296 if (!strcmp(mstr, "V")) {
297 devc->cur_mq = SR_MQ_VOLTAGE;
298 devc->cur_unit = SR_UNIT_VOLT;
299 devc->cur_mqflags = 0;
300 devc->cur_divider = 0;
301 } else if(!strcmp(mstr, "MV")) {
302 if (devc->mode_tempaux) {
303 devc->cur_mq = SR_MQ_TEMPERATURE;
304 /* No way to detect whether Fahrenheit or Celcius
305 * is used, so we'll just default to Celcius. */
306 devc->cur_unit = SR_UNIT_CELSIUS;
307 devc->cur_mqflags = 0;
308 devc->cur_divider = 0;
310 devc->cur_mq = SR_MQ_VOLTAGE;
311 devc->cur_unit = SR_UNIT_VOLT;
312 devc->cur_mqflags = 0;
313 devc->cur_divider = 1000;
315 } else if(!strcmp(mstr, "A")) {
316 devc->cur_mq = SR_MQ_CURRENT;
317 devc->cur_unit = SR_UNIT_AMPERE;
318 devc->cur_mqflags = 0;
319 devc->cur_divider = 0;
320 } else if(!strcmp(mstr, "UA")) {
321 devc->cur_mq = SR_MQ_CURRENT;
322 devc->cur_unit = SR_UNIT_AMPERE;
323 devc->cur_mqflags = 0;
324 devc->cur_divider = 1000000;
325 } else if(!strcmp(mstr, "FREQ")) {
326 devc->cur_mq = SR_MQ_FREQUENCY;
327 devc->cur_unit = SR_UNIT_HERTZ;
328 devc->cur_mqflags = 0;
329 devc->cur_divider = 0;
330 } else if(!strcmp(mstr, "RES")) {
331 if (devc->mode_continuity) {
332 devc->cur_mq = SR_MQ_CONTINUITY;
333 devc->cur_unit = SR_UNIT_BOOLEAN;
335 devc->cur_mq = SR_MQ_RESISTANCE;
336 devc->cur_unit = SR_UNIT_OHM;
338 devc->cur_mqflags = 0;
339 devc->cur_divider = 0;
340 } else if(!strcmp(mstr, "CAP")) {
341 devc->cur_mq = SR_MQ_CAPACITANCE;
342 devc->cur_unit = SR_UNIT_FARAD;
343 devc->cur_mqflags = 0;
344 devc->cur_divider = 0;
346 sr_dbg("Unknown first argument.");
349 if (g_match_info_get_match_count(match) == 4) {
350 mstr = g_match_info_fetch(match, 3);
351 /* Third value, if present, is always AC or DC. */
352 if (!strcmp(mstr, "AC")) {
353 devc->cur_mqflags |= SR_MQFLAG_AC;
354 if (devc->cur_mq == SR_MQ_VOLTAGE)
355 devc->cur_mqflags |= SR_MQFLAG_RMS;
356 } else if (!strcmp(mstr, "DC")) {
357 devc->cur_mqflags |= SR_MQFLAG_DC;
359 sr_dbg("Unknown third argument.");
363 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
368 static int recv_conf_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
370 struct dev_context *devc;
373 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
375 mstr = g_match_info_fetch(match, 1);
376 if (!strncmp(mstr, "VOLT", 4)) {
377 devc->cur_mq = SR_MQ_VOLTAGE;
378 devc->cur_unit = SR_UNIT_VOLT;
379 devc->cur_mqflags = 0;
380 devc->cur_divider = 0;
381 if (mstr[4] == ':') {
382 if (!strcmp(mstr + 4, "AC")) {
383 devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
384 } else if (!strcmp(mstr + 4, "DC")) {
385 devc->cur_mqflags |= SR_MQFLAG_DC;
386 } else if (!strcmp(mstr + 4, "ACDC")) {
388 devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
390 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
393 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
394 } else if(!strcmp(mstr, "CURR")) {
395 devc->cur_mq = SR_MQ_CURRENT;
396 devc->cur_unit = SR_UNIT_AMPERE;
397 devc->cur_mqflags = 0;
398 devc->cur_divider = 0;
399 } else if(!strcmp(mstr, "RES")) {
400 if (devc->mode_continuity) {
401 devc->cur_mq = SR_MQ_CONTINUITY;
402 devc->cur_unit = SR_UNIT_BOOLEAN;
404 devc->cur_mq = SR_MQ_RESISTANCE;
405 devc->cur_unit = SR_UNIT_OHM;
407 devc->cur_mqflags = 0;
408 devc->cur_divider = 0;
410 sr_dbg("Unknown first argument.");
417 /* At least the 123x and 125x appear to have this. */
418 static int recv_conf(const struct sr_dev_inst *sdi, GMatchInfo *match)
420 struct dev_context *devc;
423 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
425 mstr = g_match_info_fetch(match, 1);
426 if(!strcmp(mstr, "DIOD")) {
427 devc->cur_mq = SR_MQ_VOLTAGE;
428 devc->cur_unit = SR_UNIT_VOLT;
429 devc->cur_mqflags = SR_MQFLAG_DIODE;
430 devc->cur_divider = 0;
432 sr_dbg("Unknown single argument.");
438 /* This comes in whenever the rotary switch is changed to a new position.
439 * We could use it to determine the major measurement mode, but we already
440 * have the output of CONF? for that, which is more detailed. However
441 * we do need to catch this here, or it'll show up in some other output. */
442 static int recv_switch(const struct sr_dev_inst *sdi, GMatchInfo *match)
446 sr_spew("Switch '%s'.", g_match_info_get_string(match));
451 /* Poll keys/switches and values at 7Hz, mode at 1Hz. */
452 SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
459 SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
460 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
461 { "^\\*([0-9])$", recv_switch },
462 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
463 { "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", recv_conf_u123x },
464 { "^\"(RES|CAP),(\\d)\"$", recv_conf_u123x},
465 { "^\"(DIOD)\"$", recv_conf },
469 SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
470 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
471 { "^\\*([0-9])$", recv_switch },
472 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
473 { "^(VOLT|CURR|RES|CAP) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
474 { "^(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
475 { "^\"(DIOD)\"$", recv_conf },