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/>.
25 #include <libsigrok/libsigrok.h>
26 #include "libsigrok-internal.h"
27 #include "fluke-dmm.h"
29 static struct sr_datafeed_analog *handle_qm_18x(const struct sr_dev_inst *sdi,
32 struct sr_datafeed_analog *analog;
33 struct sr_analog_encoding encoding;
34 struct sr_analog_meaning meaning;
35 struct sr_analog_spec spec;
40 if (strcmp(tokens[0], "QM") || !tokens[1])
43 if ((e = strstr(tokens[1], "Out of range"))) {
46 while (*e && *e != '.')
50 /* Delimit the float, since sr_atof_ascii() wants only
51 * a valid float here. */
53 while (*e && *e != ' ')
56 if (sr_atof_ascii(tokens[1], &fvalue) != SR_OK || fvalue == 0.0) {
57 /* Happens all the time, when switching modes. */
58 sr_dbg("Invalid float.");
62 while (*e && *e == ' ')
65 analog = g_malloc0(sizeof(struct sr_datafeed_analog));
66 /* TODO: Use proper 'digits' value for this device (and its modes). */
67 sr_analog_init(analog, &encoding, &meaning, &spec, 2);
68 analog->data = g_malloc(sizeof(float));
69 analog->meaning->channels = sdi->channels;
70 analog->num_samples = 1;
72 *((float *)analog->data) = NAN;
74 *((float *)analog->data) = fvalue;
75 analog->meaning->mq = 0;
77 if ((u = strstr(e, "V DC")) || (u = strstr(e, "V AC"))) {
78 analog->meaning->mq = SR_MQ_VOLTAGE;
79 analog->meaning->unit = SR_UNIT_VOLT;
80 if (!is_oor && e[0] == 'm')
81 *((float *)analog->data) /= 1000;
82 /* This catches "V AC", "V DC" and "V AC+DC". */
84 analog->meaning->mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
86 analog->meaning->mqflags |= SR_MQFLAG_DC;
87 } else if ((u = strstr(e, "dBV")) || (u = strstr(e, "dBm"))) {
88 analog->meaning->mq = SR_MQ_VOLTAGE;
90 analog->meaning->unit = SR_UNIT_DECIBEL_MW;
92 analog->meaning->unit = SR_UNIT_DECIBEL_VOLT;
93 analog->meaning->mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
94 } else if ((u = strstr(e, "Ohms"))) {
95 analog->meaning->mq = SR_MQ_RESISTANCE;
96 analog->meaning->unit = SR_UNIT_OHM;
98 *((float *)analog->data) = INFINITY;
100 *((float *)analog->data) *= 1000;
101 else if (e[0] == 'M')
102 *((float *)analog->data) *= 1000000;
103 } else if (!strcmp(e, "nS")) {
104 analog->meaning->mq = SR_MQ_CONDUCTANCE;
105 analog->meaning->unit = SR_UNIT_SIEMENS;
106 *((float *)analog->data) /= 1e+9;
107 } else if ((u = strstr(e, "Farads"))) {
108 analog->meaning->mq = SR_MQ_CAPACITANCE;
109 analog->meaning->unit = SR_UNIT_FARAD;
112 *((float *)analog->data) /= 1e+3;
113 else if (e[0] == 'u')
114 *((float *)analog->data) /= 1e+6;
115 else if (e[0] == 'n')
116 *((float *)analog->data) /= 1e+9;
118 } else if ((u = strstr(e, "Deg C")) || (u = strstr(e, "Deg F"))) {
119 analog->meaning->mq = SR_MQ_TEMPERATURE;
121 analog->meaning->unit = SR_UNIT_CELSIUS;
123 analog->meaning->unit = SR_UNIT_FAHRENHEIT;
124 } else if ((u = strstr(e, "A AC")) || (u = strstr(e, "A DC"))) {
125 analog->meaning->mq = SR_MQ_CURRENT;
126 analog->meaning->unit = SR_UNIT_AMPERE;
127 /* This catches "A AC", "A DC" and "A AC+DC". */
129 analog->meaning->mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
131 analog->meaning->mqflags |= SR_MQFLAG_DC;
134 *((float *)analog->data) /= 1e+3;
135 else if (e[0] == 'u')
136 *((float *)analog->data) /= 1e+6;
138 } else if ((u = strstr(e, "Hz"))) {
139 analog->meaning->mq = SR_MQ_FREQUENCY;
140 analog->meaning->unit = SR_UNIT_HERTZ;
142 *((float *)analog->data) *= 1e+3;
143 } else if (!strcmp(e, "%")) {
144 analog->meaning->mq = SR_MQ_DUTY_CYCLE;
145 analog->meaning->unit = SR_UNIT_PERCENTAGE;
146 } else if ((u = strstr(e, "ms"))) {
147 analog->meaning->mq = SR_MQ_PULSE_WIDTH;
148 analog->meaning->unit = SR_UNIT_SECOND;
149 *((float *)analog->data) /= 1e+3;
152 if (analog->meaning->mq == 0) {
153 /* Not a valid measurement. */
154 g_free(analog->data);
162 static struct sr_datafeed_analog *handle_qm_28x(const struct sr_dev_inst *sdi,
165 struct sr_datafeed_analog *analog;
166 struct sr_analog_encoding encoding;
167 struct sr_analog_meaning meaning;
168 struct sr_analog_spec spec;
174 if (sr_atof_ascii(tokens[0], &fvalue) != SR_OK || fvalue == 0.0) {
175 sr_err("Invalid float '%s'.", tokens[0]);
179 analog = g_malloc0(sizeof(struct sr_datafeed_analog));
180 /* TODO: Use proper 'digits' value for this device (and its modes). */
181 sr_analog_init(analog, &encoding, &meaning, &spec, 2);
182 analog->data = g_malloc(sizeof(float));
183 analog->meaning->channels = sdi->channels;
184 analog->num_samples = 1;
185 *((float *)analog->data) = fvalue;
186 analog->meaning->mq = 0;
188 if (!strcmp(tokens[1], "VAC") || !strcmp(tokens[1], "VDC")) {
189 analog->meaning->mq = SR_MQ_VOLTAGE;
190 analog->meaning->unit = SR_UNIT_VOLT;
191 if (!strcmp(tokens[2], "NORMAL")) {
192 if (tokens[1][1] == 'A') {
193 analog->meaning->mqflags |= SR_MQFLAG_AC;
194 analog->meaning->mqflags |= SR_MQFLAG_RMS;
196 analog->meaning->mqflags |= SR_MQFLAG_DC;
197 } else if (!strcmp(tokens[2], "OL") || !strcmp(tokens[2], "OL_MINUS")) {
198 *((float *)analog->data) = NAN;
200 analog->meaning->mq = 0;
201 } else if (!strcmp(tokens[1], "dBV") || !strcmp(tokens[1], "dBm")) {
202 analog->meaning->mq = SR_MQ_VOLTAGE;
203 if (tokens[1][2] == 'm')
204 analog->meaning->unit = SR_UNIT_DECIBEL_MW;
206 analog->meaning->unit = SR_UNIT_DECIBEL_VOLT;
207 analog->meaning->mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
208 } else if (!strcmp(tokens[1], "CEL") || !strcmp(tokens[1], "FAR")) {
209 if (!strcmp(tokens[2], "NORMAL")) {
210 analog->meaning->mq = SR_MQ_TEMPERATURE;
211 if (tokens[1][0] == 'C')
212 analog->meaning->unit = SR_UNIT_CELSIUS;
214 analog->meaning->unit = SR_UNIT_FAHRENHEIT;
216 } else if (!strcmp(tokens[1], "OHM")) {
217 if (!strcmp(tokens[3], "NONE")) {
218 analog->meaning->mq = SR_MQ_RESISTANCE;
219 analog->meaning->unit = SR_UNIT_OHM;
220 if (!strcmp(tokens[2], "OL") || !strcmp(tokens[2], "OL_MINUS")) {
221 *((float *)analog->data) = INFINITY;
222 } else if (strcmp(tokens[2], "NORMAL"))
223 analog->meaning->mq = 0;
224 } else if (!strcmp(tokens[3], "OPEN_CIRCUIT")) {
225 analog->meaning->mq = SR_MQ_CONTINUITY;
226 analog->meaning->unit = SR_UNIT_BOOLEAN;
227 *((float *)analog->data) = 0.0;
228 } else if (!strcmp(tokens[3], "SHORT_CIRCUIT")) {
229 analog->meaning->mq = SR_MQ_CONTINUITY;
230 analog->meaning->unit = SR_UNIT_BOOLEAN;
231 *((float *)analog->data) = 1.0;
233 } else if (!strcmp(tokens[1], "F")
234 && !strcmp(tokens[2], "NORMAL")
235 && !strcmp(tokens[3], "NONE")) {
236 analog->meaning->mq = SR_MQ_CAPACITANCE;
237 analog->meaning->unit = SR_UNIT_FARAD;
238 } else if (!strcmp(tokens[1], "AAC") || !strcmp(tokens[1], "ADC")) {
239 analog->meaning->mq = SR_MQ_CURRENT;
240 analog->meaning->unit = SR_UNIT_AMPERE;
241 if (!strcmp(tokens[2], "NORMAL")) {
242 if (tokens[1][1] == 'A') {
243 analog->meaning->mqflags |= SR_MQFLAG_AC;
244 analog->meaning->mqflags |= SR_MQFLAG_RMS;
246 analog->meaning->mqflags |= SR_MQFLAG_DC;
247 } else if (!strcmp(tokens[2], "OL") || !strcmp(tokens[2], "OL_MINUS")) {
248 *((float *)analog->data) = NAN;
250 analog->meaning->mq = 0;
251 } if (!strcmp(tokens[1], "Hz") && !strcmp(tokens[2], "NORMAL")) {
252 analog->meaning->mq = SR_MQ_FREQUENCY;
253 analog->meaning->unit = SR_UNIT_HERTZ;
254 } else if (!strcmp(tokens[1], "PCT") && !strcmp(tokens[2], "NORMAL")) {
255 analog->meaning->mq = SR_MQ_DUTY_CYCLE;
256 analog->meaning->unit = SR_UNIT_PERCENTAGE;
257 } else if (!strcmp(tokens[1], "S") && !strcmp(tokens[2], "NORMAL")) {
258 analog->meaning->mq = SR_MQ_PULSE_WIDTH;
259 analog->meaning->unit = SR_UNIT_SECOND;
260 } else if (!strcmp(tokens[1], "SIE") && !strcmp(tokens[2], "NORMAL")) {
261 analog->meaning->mq = SR_MQ_CONDUCTANCE;
262 analog->meaning->unit = SR_UNIT_SIEMENS;
265 if (analog->meaning->mq == 0) {
266 /* Not a valid measurement. */
267 g_free(analog->data);
275 static void handle_qm_19x_meta(const struct sr_dev_inst *sdi, char **tokens)
277 struct dev_context *devc;
278 int meas_type, meas_unit, meas_char, i;
280 /* Make sure we have 7 valid tokens. */
281 for (i = 0; tokens[i] && i < 7; i++);
285 if (strcmp(tokens[1], "1"))
286 /* Invalid measurement. */
289 if (strcmp(tokens[2], "3"))
290 /* Only interested in input from the meter mode source. */
295 /* Measurement type 11 == absolute, 19 = relative */
296 meas_type = strtol(tokens[0], NULL, 10);
297 if (meas_type != 11 && meas_type != 19)
298 /* Device is in some mode we don't support. */
301 /* We might get metadata for absolute and relative mode (if the device
302 * is in relative mode). In that case, relative takes precedence. */
303 if (meas_type == 11 && devc->meas_type == 19)
306 meas_unit = strtol(tokens[3], NULL, 10);
308 /* Device is turned off. Really. */
310 meas_char = strtol(tokens[4], NULL, 10);
318 devc->mq = SR_MQ_VOLTAGE;
319 devc->unit = SR_UNIT_VOLT;
321 devc->mqflags |= SR_MQFLAG_DC;
322 else if (meas_char == 2)
323 devc->mqflags |= SR_MQFLAG_AC;
324 else if (meas_char == 3)
325 devc->mqflags |= SR_MQFLAG_DC | SR_MQFLAG_AC;
326 else if (meas_char == 15)
327 devc->mqflags |= SR_MQFLAG_DIODE;
330 devc->mq = SR_MQ_CURRENT;
331 devc->unit = SR_UNIT_AMPERE;
333 devc->mqflags |= SR_MQFLAG_DC;
334 else if (meas_char == 2)
335 devc->mqflags |= SR_MQFLAG_AC;
336 else if (meas_char == 3)
337 devc->mqflags |= SR_MQFLAG_DC | SR_MQFLAG_AC;
340 if (meas_char == 1) {
341 devc->mq = SR_MQ_RESISTANCE;
342 devc->unit = SR_UNIT_OHM;
343 } else if (meas_char == 16) {
344 devc->mq = SR_MQ_CONTINUITY;
345 devc->unit = SR_UNIT_BOOLEAN;
349 devc->mq = SR_MQ_TEMPERATURE;
350 devc->unit = SR_UNIT_CELSIUS;
353 devc->mq = SR_MQ_TEMPERATURE;
354 devc->unit = SR_UNIT_FAHRENHEIT;
357 sr_dbg("unknown unit: %d", meas_unit);
359 if (devc->mq == 0 && devc->unit == 0)
362 /* If we got here, we know how to interpret the measurement. */
363 devc->meas_type = meas_type;
365 /* Absolute meter reading. */
366 devc->is_relative = FALSE;
367 else if (!strcmp(tokens[0], "19"))
368 /* Relative meter reading. */
369 devc->is_relative = TRUE;
373 static void handle_qm_19x_data(const struct sr_dev_inst *sdi, char **tokens)
375 struct dev_context *devc;
376 struct sr_datafeed_packet packet;
377 struct sr_datafeed_analog analog;
378 struct sr_analog_encoding encoding;
379 struct sr_analog_meaning meaning;
380 struct sr_analog_spec spec;
383 if (!strcmp(tokens[0], "9.9E+37")) {
384 /* An invalid measurement shows up on the display as "OL", but
385 * comes through like this. Since comparing 38-digit floats
386 * is rather problematic, we'll cut through this here. */
389 if (sr_atof_ascii(tokens[0], &fvalue) != SR_OK || fvalue == 0.0) {
390 sr_err("Invalid float '%s'.", tokens[0]);
396 if (devc->mq == 0 || devc->unit == 0)
397 /* Don't have valid metadata yet. */
400 if (devc->mq == SR_MQ_RESISTANCE && isnan(fvalue))
402 else if (devc->mq == SR_MQ_CONTINUITY) {
409 /* TODO: Use proper 'digits' value for this device (and its modes). */
410 sr_analog_init(&analog, &encoding, &meaning, &spec, 2);
411 analog.meaning->channels = sdi->channels;
412 analog.num_samples = 1;
413 analog.data = &fvalue;
414 analog.meaning->mq = devc->mq;
415 analog.meaning->unit = devc->unit;
416 analog.meaning->mqflags = 0;
417 packet.type = SR_DF_ANALOG;
418 packet.payload = &analog;
419 sr_session_send(sdi, &packet);
421 sr_sw_limits_update_samples_read(&devc->limits, 1);
424 static void handle_line(const struct sr_dev_inst *sdi)
426 struct dev_context *devc;
427 struct sr_serial_dev_inst *serial;
428 struct sr_datafeed_packet packet;
429 struct sr_datafeed_analog *analog;
430 int num_tokens, n, i;
431 char cmd[16], **tokens;
435 sr_spew("Received line '%s' (%d).", devc->buf, devc->buflen);
437 if (devc->buflen == 1) {
438 if (devc->buf[0] != '0') {
439 /* Not just a CMD_ACK from the query command. */
440 sr_dbg("Got CMD_ACK '%c'.", devc->buf[0]);
441 devc->expect_response = FALSE;
448 tokens = g_strsplit(devc->buf, ",", 0);
450 if (devc->profile->model == FLUKE_187 || devc->profile->model == FLUKE_189) {
451 devc->expect_response = FALSE;
452 analog = handle_qm_18x(sdi, tokens);
453 } else if (devc->profile->model == FLUKE_287 || devc->profile->model == FLUKE_289) {
454 devc->expect_response = FALSE;
455 analog = handle_qm_28x(sdi, tokens);
456 } else if (devc->profile->model == FLUKE_190) {
457 devc->expect_response = FALSE;
458 for (num_tokens = 0; tokens[num_tokens]; num_tokens++);
459 if (num_tokens >= 7) {
460 /* Response to QM: this is a comma-separated list of
461 * fields with metadata about the measurement. This
462 * format can return multiple sets of metadata,
463 * split into sets of 7 tokens each. */
465 for (i = 0; i < num_tokens; i += 7)
466 handle_qm_19x_meta(sdi, tokens + i);
467 if (devc->meas_type) {
468 /* Slip the request in now, before the main
469 * timer loop asks for metadata again. */
470 n = sprintf(cmd, "QM %d\r", devc->meas_type);
471 if (serial_write_blocking(serial, cmd, n, SERIAL_WRITE_TIMEOUT_MS) < 0)
472 sr_err("Unable to send QM (measurement).");
475 /* Response to QM <n> measurement request. */
476 handle_qm_19x_data(sdi, tokens);
484 /* Got a measurement. */
485 packet.type = SR_DF_ANALOG;
486 packet.payload = analog;
487 sr_session_send(sdi, &packet);
488 sr_sw_limits_update_samples_read(&devc->limits, 1);
489 g_free(analog->data);
495 SR_PRIV int fluke_receive_data(int fd, int revents, void *cb_data)
497 struct sr_dev_inst *sdi;
498 struct dev_context *devc;
499 struct sr_serial_dev_inst *serial;
501 int64_t now, elapsed;
505 if (!(sdi = cb_data))
508 if (!(devc = sdi->priv))
512 if (revents == G_IO_IN) {
513 /* Serial data arrived. */
514 while (FLUKEDMM_BUFSIZE - devc->buflen - 1 > 0) {
515 len = serial_read_nonblocking(serial, devc->buf + devc->buflen, 1);
519 *(devc->buf + devc->buflen) = '\0';
520 if (*(devc->buf + devc->buflen - 1) == '\r') {
521 *(devc->buf + --devc->buflen) = '\0';
528 if (sr_sw_limits_check(&devc->limits)) {
529 sdi->driver->dev_acquisition_stop(sdi);
533 now = g_get_monotonic_time() / 1000;
534 elapsed = now - devc->cmd_sent_at;
535 /* Send query command at poll_period interval, or after 1 second
536 * has elapsed. This will make it easier to recover from any
537 * out-of-sync or temporary disconnect issues. */
538 if ((devc->expect_response == FALSE && elapsed > devc->profile->poll_period)
539 || elapsed > devc->profile->timeout) {
540 if (serial_write_blocking(serial, "QM\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0)
541 sr_err("Unable to send QM.");
542 devc->cmd_sent_at = now;
543 devc->expect_response = TRUE;