2 * This file is part of the sigrok 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;
101 if (!(devc = sdi->priv))
104 if (revents == G_IO_IN) {
105 /* Serial data arrived. */
106 while(AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
107 len = serial_read(devc->serial, devc->buf + devc->buflen, 1);
111 *(devc->buf + devc->buflen) = '\0';
112 if (*(devc->buf + devc->buflen - 1) == '\n') {
122 if (devc->num_samples >= devc->limit_samples)
123 sdi->driver->dev_acquisition_stop(sdi, cb_data);
128 static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
130 struct dev_context *devc;
134 sr_spew("Sending '%s'.", cmd);
135 strncpy(buf, cmd, 28);
136 if (!strncmp(buf, "*IDN?", 5))
137 strncat(buf, "\r\n", 32);
139 strncat(buf, "\n\r\n", 32);
140 if (serial_write(devc->serial, buf, strlen(buf)) == -1) {
141 sr_err("Failed to send: %s.", strerror(errno));
148 static int send_stat(const struct sr_dev_inst *sdi)
150 return agdmm_send(sdi, "STAT?");
153 static int recv_stat_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
155 struct dev_context *devc;
159 s = g_match_info_fetch(match, 1);
160 sr_spew("STAT response '%s'.", s);
162 /* Max, Min or Avg mode -- no way to tell which, so we'll
163 * set both flags to denote it's not a normal measurement. */
165 devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
167 devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
170 devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
172 devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
174 /* Triggered or auto hold modes. */
175 if (s[2] == '1' || s[3] == '1')
176 devc->cur_mqflags |= SR_MQFLAG_HOLD;
178 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
182 devc->mode_tempaux = TRUE;
184 devc->mode_tempaux = FALSE;
186 /* Continuity mode. */
188 devc->mode_continuity = TRUE;
190 devc->mode_continuity = FALSE;
197 static int recv_stat_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
199 struct dev_context *devc;
203 s = g_match_info_fetch(match, 1);
204 sr_spew("STAT response '%s'.", s);
206 /* Peak hold mode. */
208 devc->cur_mqflags |= SR_MQFLAG_MAX;
210 devc->cur_mqflags &= ~SR_MQFLAG_MAX;
212 /* Triggered hold mode. */
214 devc->cur_mqflags |= SR_MQFLAG_HOLD;
216 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
223 static int send_fetc(const struct sr_dev_inst *sdi)
225 return agdmm_send(sdi, "FETC?");
228 static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
230 struct dev_context *devc;
231 struct sr_datafeed_packet packet;
232 struct sr_datafeed_analog analog;
236 sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
239 if (devc->cur_mq == -1)
240 /* Haven't seen configuration yet, so can't know what
241 * the fetched float means. Not really an error, we'll
242 * get metadata soon enough. */
245 if (!strcmp(g_match_info_get_string(match), "+9.90000000E+37")) {
246 /* An invalid measurement shows up on the display as "O.L", but
247 * comes through like this. Since comparing 38-digit floats
248 * is rather problematic, we'll cut through this here. */
251 mstr = g_match_info_fetch(match, 1);
252 fvalue = strtof(mstr, &eptr);
254 if (fvalue == 0.0 && eptr == mstr) {
255 sr_err("Invalid float.");
258 if (devc->cur_divider > 0)
259 fvalue /= devc->cur_divider;
262 memset(&analog, 0, sizeof(struct sr_datafeed_analog));
263 analog.mq = devc->cur_mq;
264 analog.unit = devc->cur_unit;
265 analog.mqflags = devc->cur_mqflags;
266 analog.num_samples = 1;
267 analog.data = &fvalue;
268 packet.type = SR_DF_ANALOG;
269 packet.payload = &analog;
270 sr_session_send(devc->cb_data, &packet);
277 static int send_conf(const struct sr_dev_inst *sdi)
279 return agdmm_send(sdi, "CONF?");
282 static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
284 struct dev_context *devc;
287 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
289 mstr = g_match_info_fetch(match, 1);
290 if (!strcmp(mstr, "V")) {
291 devc->cur_mq = SR_MQ_VOLTAGE;
292 devc->cur_unit = SR_UNIT_VOLT;
293 devc->cur_mqflags = 0;
294 devc->cur_divider = 0;
295 } else if(!strcmp(mstr, "MV")) {
296 if (devc->mode_tempaux) {
297 devc->cur_mq = SR_MQ_TEMPERATURE;
298 /* No way to detect whether Fahrenheit or Celcius
299 * is used, so we'll just default to Celcius. */
300 devc->cur_unit = SR_UNIT_CELSIUS;
301 devc->cur_mqflags = 0;
302 devc->cur_divider = 0;
304 devc->cur_mq = SR_MQ_VOLTAGE;
305 devc->cur_unit = SR_UNIT_VOLT;
306 devc->cur_mqflags = 0;
307 devc->cur_divider = 1000;
309 } else if(!strcmp(mstr, "A")) {
310 devc->cur_mq = SR_MQ_CURRENT;
311 devc->cur_unit = SR_UNIT_AMPERE;
312 devc->cur_mqflags = 0;
313 devc->cur_divider = 0;
314 } else if(!strcmp(mstr, "UA")) {
315 devc->cur_mq = SR_MQ_CURRENT;
316 devc->cur_unit = SR_UNIT_AMPERE;
317 devc->cur_mqflags = 0;
318 devc->cur_divider = 1000000;
319 } else if(!strcmp(mstr, "FREQ")) {
320 devc->cur_mq = SR_MQ_FREQUENCY;
321 devc->cur_unit = SR_UNIT_HERTZ;
322 devc->cur_mqflags = 0;
323 devc->cur_divider = 0;
324 } else if(!strcmp(mstr, "RES")) {
325 if (devc->mode_continuity) {
326 devc->cur_mq = SR_MQ_CONTINUITY;
327 devc->cur_unit = SR_UNIT_BOOLEAN;
329 devc->cur_mq = SR_MQ_RESISTANCE;
330 devc->cur_unit = SR_UNIT_OHM;
332 devc->cur_mqflags = 0;
333 devc->cur_divider = 0;
334 } else if(!strcmp(mstr, "CAP")) {
335 devc->cur_mq = SR_MQ_CAPACITANCE;
336 devc->cur_unit = SR_UNIT_FARAD;
337 devc->cur_mqflags = 0;
338 devc->cur_divider = 0;
340 sr_dbg("Unknown first argument.");
343 if (g_match_info_get_match_count(match) == 4) {
344 mstr = g_match_info_fetch(match, 3);
345 /* Third value, if present, is always AC or DC. */
346 if (!strcmp(mstr, "AC"))
347 devc->cur_mqflags |= SR_MQFLAG_AC;
348 else if (!strcmp(mstr, "DC"))
349 devc->cur_mqflags |= SR_MQFLAG_DC;
351 sr_dbg("Unknown third argument.");
354 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
359 static int recv_conf_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
361 struct dev_context *devc;
364 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
366 mstr = g_match_info_fetch(match, 1);
367 if (!strncmp(mstr, "VOLT", 4)) {
368 devc->cur_mq = SR_MQ_VOLTAGE;
369 devc->cur_unit = SR_UNIT_VOLT;
370 devc->cur_mqflags = 0;
371 devc->cur_divider = 0;
372 if (mstr[4] == ':') {
373 if (!strcmp(mstr + 4, "AC"))
374 devc->cur_mqflags |= SR_MQFLAG_AC;
375 else if (!strcmp(mstr + 4, "DC"))
376 devc->cur_mqflags |= SR_MQFLAG_DC;
378 /* "ACDC" appears as well, no idea what it means. */
379 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
381 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
382 } else if(!strcmp(mstr, "CURR")) {
383 devc->cur_mq = SR_MQ_CURRENT;
384 devc->cur_unit = SR_UNIT_AMPERE;
385 devc->cur_mqflags = 0;
386 devc->cur_divider = 0;
387 } else if(!strcmp(mstr, "RES")) {
388 if (devc->mode_continuity) {
389 devc->cur_mq = SR_MQ_CONTINUITY;
390 devc->cur_unit = SR_UNIT_BOOLEAN;
392 devc->cur_mq = SR_MQ_RESISTANCE;
393 devc->cur_unit = SR_UNIT_OHM;
395 devc->cur_mqflags = 0;
396 devc->cur_divider = 0;
398 sr_dbg("Unknown first argument.");
404 /* At least the 123x and 125x appear to have this. */
405 static int recv_conf(const struct sr_dev_inst *sdi, GMatchInfo *match)
407 struct dev_context *devc;
410 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
412 mstr = g_match_info_fetch(match, 1);
413 if(!strcmp(mstr, "DIOD")) {
414 devc->cur_mq = SR_MQ_VOLTAGE;
415 devc->cur_unit = SR_UNIT_VOLT;
416 devc->cur_mqflags = SR_MQFLAG_DIODE;
417 devc->cur_divider = 0;
419 sr_dbg("Unknown single argument.");
425 /* This comes in whenever the rotary switch is changed to a new position.
426 * We could use it to determine the major measurement mode, but we already
427 * have the output of CONF? for that, which is more detailed. However
428 * we do need to catch this here, or it'll show up in some other output. */
429 static int recv_switch(const struct sr_dev_inst *sdi, GMatchInfo *match)
433 sr_spew("Switch '%s'.", g_match_info_get_string(match));
438 SR_PRIV const struct agdmm_job agdmm_jobs_u123x[] = {
445 SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
446 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
447 { "^\\*([0-9])$", recv_switch },
448 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
449 { "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", recv_conf_u123x },
450 { "^\"(RES|CAP),(\\d)\"$", recv_conf_u123x},
451 { "^\"(DIOD)\"$", recv_conf },
455 SR_PRIV const struct agdmm_job agdmm_jobs_u125x[] = {
462 SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
463 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
464 { "^\\*([0-9])$", recv_switch },
465 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
466 { "^(VOLT|CURR|RES|CAP) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
467 { "^(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
468 { "^\"(DIOD)\"$", recv_conf },