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 const struct sr_dev_inst *sdi;
93 struct dev_context *devc;
99 if (!(devc = sdi->priv))
102 if (revents == G_IO_IN) {
103 /* Serial data arrived. */
104 while(AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
105 len = serial_read(fd, devc->buf + devc->buflen, 1);
109 *(devc->buf + devc->buflen) = '\0';
110 if (*(devc->buf + devc->buflen - 1) == '\n') {
120 if (devc->num_samples >= devc->limit_samples)
121 sdi->driver->dev_acquisition_stop(sdi, cb_data);
126 static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
128 struct dev_context *devc;
132 sr_spew("Sending '%s'.", cmd);
133 strncpy(buf, cmd, 28);
134 if (!strncmp(buf, "*IDN?", 5))
135 strncat(buf, "\r\n", 32);
137 strncat(buf, "\n\r\n", 32);
138 if (serial_write(devc->serial->fd, buf, strlen(buf)) == -1) {
139 sr_err("Failed to send: %s.", strerror(errno));
146 static int send_stat(const struct sr_dev_inst *sdi)
148 return agdmm_send(sdi, "STAT?");
151 static int recv_stat_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
153 struct dev_context *devc;
157 s = g_match_info_fetch(match, 1);
158 sr_spew("STAT response '%s'.", s);
160 /* Max, Min or Avg mode -- no way to tell which, so we'll
161 * set both flags to denote it's not a normal measurement. */
163 devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
165 devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
168 devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
170 devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
172 /* Triggered or auto hold modes. */
173 if (s[2] == '1' || s[3] == '1')
174 devc->cur_mqflags |= SR_MQFLAG_HOLD;
176 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
180 devc->mode_tempaux = TRUE;
182 devc->mode_tempaux = FALSE;
184 /* Continuity mode. */
186 devc->mode_continuity = TRUE;
188 devc->mode_continuity = FALSE;
195 static int recv_stat_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
197 struct dev_context *devc;
201 s = g_match_info_fetch(match, 1);
202 sr_spew("STAT response '%s'.", s);
204 /* Peak hold mode. */
206 devc->cur_mqflags |= SR_MQFLAG_MAX;
208 devc->cur_mqflags &= ~SR_MQFLAG_MAX;
210 /* Triggered hold mode. */
212 devc->cur_mqflags |= SR_MQFLAG_HOLD;
214 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
221 static int send_fetc(const struct sr_dev_inst *sdi)
223 return agdmm_send(sdi, "FETC?");
226 static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
228 struct dev_context *devc;
229 struct sr_datafeed_packet packet;
230 struct sr_datafeed_analog analog;
234 sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
237 if (devc->cur_mq == -1)
238 /* Haven't seen configuration yet, so can't know what
239 * the fetched float means. Not really an error, we'll
240 * get metadata soon enough. */
243 if (!strcmp(g_match_info_get_string(match), "+9.90000000E+37")) {
244 /* An invalid measurement shows up on the display as "O.L, but
245 * comes through like this. Since comparing 38-digit floats
246 * is rather problematic, we'll cut through this here. */
249 mstr = g_match_info_fetch(match, 1);
250 fvalue = strtof(mstr, &eptr);
252 if (fvalue == 0.0 && eptr == mstr) {
253 sr_err("Invalid float.");
256 if (devc->cur_divider > 0)
257 fvalue /= devc->cur_divider;
260 memset(&analog, 0, sizeof(struct sr_datafeed_analog));
261 analog.mq = devc->cur_mq;
262 analog.unit = devc->cur_unit;
263 analog.mqflags = devc->cur_mqflags;
264 analog.num_samples = 1;
265 analog.data = &fvalue;
266 packet.type = SR_DF_ANALOG;
267 packet.payload = &analog;
268 sr_session_send(devc->cb_data, &packet);
275 static int send_conf(const struct sr_dev_inst *sdi)
277 return agdmm_send(sdi, "CONF?");
280 static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
282 struct dev_context *devc;
285 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
287 mstr = g_match_info_fetch(match, 1);
288 if (!strcmp(mstr, "V")) {
289 devc->cur_mq = SR_MQ_VOLTAGE;
290 devc->cur_unit = SR_UNIT_VOLT;
291 devc->cur_mqflags = 0;
292 devc->cur_divider = 0;
293 } else if(!strcmp(mstr, "MV")) {
294 if (devc->mode_tempaux) {
295 devc->cur_mq = SR_MQ_TEMPERATURE;
296 /* No way to detect whether Fahrenheit or Celcius
297 * is used, so we'll just default to Celcius. */
298 devc->cur_unit = SR_UNIT_CELSIUS;
299 devc->cur_mqflags = 0;
300 devc->cur_divider = 0;
302 devc->cur_mq = SR_MQ_VOLTAGE;
303 devc->cur_unit = SR_UNIT_VOLT;
304 devc->cur_mqflags = 0;
305 devc->cur_divider = 1000;
307 } else if(!strcmp(mstr, "A")) {
308 devc->cur_mq = SR_MQ_CURRENT;
309 devc->cur_unit = SR_UNIT_AMPERE;
310 devc->cur_mqflags = 0;
311 devc->cur_divider = 0;
312 } else if(!strcmp(mstr, "UA")) {
313 devc->cur_mq = SR_MQ_CURRENT;
314 devc->cur_unit = SR_UNIT_AMPERE;
315 devc->cur_mqflags = 0;
316 devc->cur_divider = 1000000;
317 } else if(!strcmp(mstr, "FREQ")) {
318 devc->cur_mq = SR_MQ_FREQUENCY;
319 devc->cur_unit = SR_UNIT_HERTZ;
320 devc->cur_mqflags = 0;
321 devc->cur_divider = 0;
322 } else if(!strcmp(mstr, "RES")) {
323 if (devc->mode_continuity) {
324 devc->cur_mq = SR_MQ_CONTINUITY;
325 devc->cur_unit = SR_UNIT_BOOLEAN;
327 devc->cur_mq = SR_MQ_RESISTANCE;
328 devc->cur_unit = SR_UNIT_OHM;
330 devc->cur_mqflags = 0;
331 devc->cur_divider = 0;
332 } else if(!strcmp(mstr, "CAP")) {
333 devc->cur_mq = SR_MQ_CAPACITANCE;
334 devc->cur_unit = SR_UNIT_FARAD;
335 devc->cur_mqflags = 0;
336 devc->cur_divider = 0;
338 sr_dbg("Unknown first argument.");
341 if (g_match_info_get_match_count(match) == 4) {
342 mstr = g_match_info_fetch(match, 3);
343 /* Third value, if present, is always AC or DC. */
344 if (!strcmp(mstr, "AC"))
345 devc->cur_mqflags |= SR_MQFLAG_AC;
346 else if (!strcmp(mstr, "DC"))
347 devc->cur_mqflags |= SR_MQFLAG_DC;
349 sr_dbg("Unknown third argument.");
352 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
357 static int recv_conf_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
359 struct dev_context *devc;
362 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
364 mstr = g_match_info_fetch(match, 1);
365 if (!strncmp(mstr, "VOLT", 4)) {
366 devc->cur_mq = SR_MQ_VOLTAGE;
367 devc->cur_unit = SR_UNIT_VOLT;
368 devc->cur_mqflags = 0;
369 devc->cur_divider = 0;
370 if (mstr[4] == ':') {
371 if (!strcmp(mstr + 4, "AC"))
372 devc->cur_mqflags |= SR_MQFLAG_AC;
373 else if (!strcmp(mstr + 4, "DC"))
374 devc->cur_mqflags |= SR_MQFLAG_DC;
376 /* "ACDC" appears as well, no idea what it means. */
377 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
379 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
380 } else if(!strcmp(mstr, "CURR")) {
381 devc->cur_mq = SR_MQ_CURRENT;
382 devc->cur_unit = SR_UNIT_AMPERE;
383 devc->cur_mqflags = 0;
384 devc->cur_divider = 0;
385 } else if(!strcmp(mstr, "RES")) {
386 if (devc->mode_continuity) {
387 devc->cur_mq = SR_MQ_CONTINUITY;
388 devc->cur_unit = SR_UNIT_BOOLEAN;
390 devc->cur_mq = SR_MQ_RESISTANCE;
391 devc->cur_unit = SR_UNIT_OHM;
393 devc->cur_mqflags = 0;
394 devc->cur_divider = 0;
396 sr_dbg("Unknown first argument.");
402 /* At least the 123x and 125x appear to have this. */
403 static int recv_conf(const struct sr_dev_inst *sdi, GMatchInfo *match)
405 struct dev_context *devc;
408 sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
410 mstr = g_match_info_fetch(match, 1);
411 if(!strcmp(mstr, "DIOD")) {
412 devc->cur_mq = SR_MQ_VOLTAGE;
413 devc->cur_unit = SR_UNIT_VOLT;
414 devc->cur_mqflags = SR_MQFLAG_DIODE;
415 devc->cur_divider = 0;
417 sr_dbg("Unknown single argument.");
423 /* This comes in whenever the rotary switch is changed to a new position.
424 * We could use it to determine the major measurement mode, but we already
425 * have the output of CONF? for that, which is more detailed. However
426 * we do need to catch this here, or it'll show up in some other output. */
427 static int recv_switch(const struct sr_dev_inst *sdi, GMatchInfo *match)
431 sr_spew("Switch '%s'.", g_match_info_get_string(match));
436 SR_PRIV const struct agdmm_job agdmm_jobs_u123x[] = {
443 SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
444 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
445 { "^\\*([0-9])$", recv_switch },
446 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
447 { "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", recv_conf_u123x },
448 { "^\"(RES|CAP),(\\d)\"$", recv_conf_u123x},
449 { "^\"(DIOD)\"$", recv_conf },
453 SR_PRIV const struct agdmm_job agdmm_jobs_u125x[] = {
460 SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
461 { "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
462 { "^\\*([0-9])$", recv_switch },
463 { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
464 { "^(VOLT|CURR|RES|CAP) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
465 { "^(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
466 { "^\"(DIOD)\"$", recv_conf },