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Various #include file cosmetic fixes.
[libsigrok.git] / src / hardware / agilent-dmm / sched.c
1 /*
2  * This file is part of the libsigrok project.
3  *
4  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
5  *
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.
10  *
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.
15  *
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/>.
18  */
19
20 #include <glib.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <errno.h>
24 #include <math.h>
25 #include "libsigrok.h"
26 #include "libsigrok-internal.h"
27 #include "agilent-dmm.h"
28
29 static void dispatch(const struct sr_dev_inst *sdi)
30 {
31         struct dev_context *devc;
32         const struct agdmm_job *jobs;
33         int64_t now;
34         int i;
35
36         devc = sdi->priv;
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;
44                 }
45         }
46 }
47
48 static void receive_line(const struct sr_dev_inst *sdi)
49 {
50         struct dev_context *devc;
51         const struct agdmm_recv *recvs, *recv;
52         GRegex *reg;
53         GMatchInfo *match;
54         int i;
55
56         devc = sdi->priv;
57
58         /* Strip CRLF */
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';
63                 else
64                         break;
65         }
66         sr_spew("Received '%s'.", devc->buf);
67
68         recv = NULL;
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)) {
73                         recv = &recvs[i];
74                         break;
75                 }
76                 g_match_info_unref(match);
77                 g_regex_unref(reg);
78         }
79         if (recv) {
80                 recv->recv(sdi, match);
81                 g_match_info_unref(match);
82                 g_regex_unref(reg);
83         } else
84                 sr_dbg("Unknown line '%s'.", devc->buf);
85
86         /* Done with this. */
87         devc->buflen = 0;
88 }
89
90 SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
91 {
92         struct sr_dev_inst *sdi;
93         struct dev_context *devc;
94         struct sr_serial_dev_inst *serial;
95         int len;
96
97         (void)fd;
98
99         if (!(sdi = cb_data))
100                 return TRUE;
101
102         if (!(devc = sdi->priv))
103                 return TRUE;
104
105         serial = sdi->conn;
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);
110                         if (len < 1)
111                                 break;
112                         devc->buflen += len;
113                         *(devc->buf + devc->buflen) = '\0';
114                         if (*(devc->buf + devc->buflen - 1) == '\n') {
115                                 /* End of line */
116                                 receive_line(sdi);
117                                 break;
118                         }
119                 }
120         }
121
122         dispatch(sdi);
123
124         if (devc->limit_samples && devc->num_samples >= devc->limit_samples)
125                 sdi->driver->dev_acquisition_stop(sdi, cb_data);
126
127         return TRUE;
128 }
129
130 static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
131 {
132         struct sr_serial_dev_inst *serial;
133         char buf[32];
134
135         serial = sdi->conn;
136
137         sr_spew("Sending '%s'.", cmd);
138         strncpy(buf, cmd, 28);
139         if (!strncmp(buf, "*IDN?", 5))
140                 strcat(buf, "\r\n");
141         else
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.");
145                 return SR_ERR;
146         }
147
148         return SR_OK;
149 }
150
151 static int send_stat(const struct sr_dev_inst *sdi)
152 {
153         return agdmm_send(sdi, "STAT?");
154 }
155
156 static int recv_stat_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
157 {
158         struct dev_context *devc;
159         char *s;
160
161         devc = sdi->priv;
162         s = g_match_info_fetch(match, 1);
163         sr_spew("STAT response '%s'.", s);
164
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. */
167         if (s[0] == '1')
168                 devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
169         else
170                 devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
171
172         if (s[1] == '1')
173                 devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
174         else
175                 devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
176
177         /* Triggered or auto hold modes. */
178         if (s[2] == '1' || s[3] == '1')
179                 devc->cur_mqflags |= SR_MQFLAG_HOLD;
180         else
181                 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
182
183         /* Temp/aux mode. */
184         if (s[7] == '1')
185                 devc->mode_tempaux = TRUE;
186         else
187                 devc->mode_tempaux = FALSE;
188
189         /* Continuity mode. */
190         if (s[16] == '1')
191                 devc->mode_continuity = TRUE;
192         else
193                 devc->mode_continuity = FALSE;
194
195         g_free(s);
196
197         return SR_OK;
198 }
199
200 static int recv_stat_u124x(const struct sr_dev_inst *sdi, GMatchInfo *match)
201 {
202         struct dev_context *devc;
203         char *s;
204
205         devc = sdi->priv;
206         s = g_match_info_fetch(match, 1);
207         sr_spew("STAT response '%s'.", s);
208
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. */
211         if (s[0] == '1')
212                 devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
213         else
214                 devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);
215
216         if (s[1] == '1')
217                 devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
218         else
219                 devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
220
221         /* Hold mode. */
222         if (s[7] == '1')
223                 devc->cur_mqflags |= SR_MQFLAG_HOLD;
224         else
225                 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
226
227         g_free(s);
228
229         return SR_OK;
230 }
231
232 static int recv_stat_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
233 {
234         struct dev_context *devc;
235         char *s;
236
237         devc = sdi->priv;
238         s = g_match_info_fetch(match, 1);
239         sr_spew("STAT response '%s'.", s);
240
241         /* Peak hold mode. */
242         if (s[4] == '1')
243                 devc->cur_mqflags |= SR_MQFLAG_MAX;
244         else
245                 devc->cur_mqflags &= ~SR_MQFLAG_MAX;
246
247         /* Triggered hold mode. */
248         if (s[7] == '1')
249                 devc->cur_mqflags |= SR_MQFLAG_HOLD;
250         else
251                 devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
252
253         g_free(s);
254
255         return SR_OK;
256 }
257
258 static int send_fetc(const struct sr_dev_inst *sdi)
259 {
260         return agdmm_send(sdi, "FETC?");
261 }
262
263 static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
264 {
265         struct dev_context *devc;
266         struct sr_datafeed_packet packet;
267         struct sr_datafeed_analog analog;
268         float fvalue;
269         const char *s;
270         char *mstr;
271
272         sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
273         devc = sdi->priv;
274
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. */
279                 return SR_OK;
280
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. */
286                 fvalue = NAN;
287         } else {
288                 mstr = g_match_info_fetch(match, 1);
289                 if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
290                         g_free(mstr);
291                         sr_dbg("Invalid float.");
292                         return SR_ERR;
293                 }
294                 g_free(mstr);
295                 if (devc->cur_divider > 0)
296                         fvalue /= devc->cur_divider;
297         }
298
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);
309
310         devc->num_samples++;
311
312         return SR_OK;
313 }
314
315 static int send_conf(const struct sr_dev_inst *sdi)
316 {
317         return agdmm_send(sdi, "CONF?");
318 }
319
320 static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
321 {
322         struct dev_context *devc;
323         char *mstr;
324
325         sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
326         devc = sdi->priv;
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;
341                 } else {
342                         devc->cur_mq = SR_MQ_VOLTAGE;
343                         devc->cur_unit = SR_UNIT_VOLT;
344                         devc->cur_mqflags = 0;
345                         devc->cur_divider = 1000;
346                 }
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;
366                 } else {
367                         devc->cur_mq = SR_MQ_RESISTANCE;
368                         devc->cur_unit = SR_UNIT_OHM;
369                 }
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;
377         } else
378                 sr_dbg("Unknown first argument.");
379         g_free(mstr);
380
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;
390                 } else {
391                 sr_dbg("Unknown first argument '%s'.", mstr);
392                 }
393                 g_free(mstr);
394         } else
395                 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
396
397         return SR_OK;
398 }
399
400 static int recv_conf_u124x_5x(const struct sr_dev_inst *sdi, GMatchInfo *match)
401 {
402         struct dev_context *devc;
403         char *mstr, *m2;
404
405         sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
406         devc = sdi->priv;
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)) {
419                                 /* AC + DC offset */
420                                 devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
421                         } else {
422                                 devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
423                         }
424                 } else
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;
456                 else
457                         devc->cur_unit = SR_UNIT_CELSIUS;
458                 g_free(m2);
459                 devc->cur_mqflags = 0;
460                 devc->cur_divider = 0;
461         } else if (!strcmp(mstr, "SCOU")) {
462                 /*
463                  * Switch counter, not supported. Not sure what values
464                  * come from FETC in this mode, or how they would map
465                  * into libsigrok.
466                  */
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;
472         } else {
473                 sr_dbg("Unknown first argument '%s'.", mstr);
474         }
475         g_free(mstr);
476
477         return SR_OK;
478 }
479
480 static int recv_conf(const struct sr_dev_inst *sdi, GMatchInfo *match)
481 {
482         struct dev_context *devc;
483         char *mstr;
484
485         sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
486         devc = sdi->priv;
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;
493         } else
494                 sr_dbg("Unknown single argument.");
495         g_free(mstr);
496
497         return SR_OK;
498 }
499
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)
505 {
506         (void)sdi;
507
508         sr_spew("Switch '%s'.", g_match_info_get_string(match));
509
510         return SR_OK;
511 }
512
513 /* Poll keys/switches and values at 7Hz, mode at 1Hz. */
514 SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
515         { 143, send_stat },
516         { 1000, send_conf },
517         { 143, send_fetc },
518         { 0, NULL }
519 };
520
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 },
528         { NULL, NULL }
529 };
530
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 },
540         { NULL, NULL }
541 };
542
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 },
552         { NULL, NULL }
553 };