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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2017,2019 Frank Stettner <frank-stettner@gmx.net>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21#include <config.h>
22#include <string.h>
23#include <strings.h>
24#include "scpi.h"
25#include "protocol.h"
26
27static struct sr_dev_driver scpi_pps_driver_info;
28static struct sr_dev_driver hp_ib_pps_driver_info;
29
30static const uint32_t scanopts[] = {
31 SR_CONF_CONN,
32 SR_CONF_SERIALCOMM,
33};
34
35static const uint32_t drvopts[] = {
36 SR_CONF_POWER_SUPPLY,
37};
38
39static const struct pps_channel_instance pci[] = {
40 { SR_MQ_VOLTAGE, SCPI_CMD_GET_MEAS_VOLTAGE, "V" },
41 { SR_MQ_CURRENT, SCPI_CMD_GET_MEAS_CURRENT, "I" },
42 { SR_MQ_POWER, SCPI_CMD_GET_MEAS_POWER, "P" },
43 { SR_MQ_FREQUENCY, SCPI_CMD_GET_MEAS_FREQUENCY, "F" },
44};
45
46static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi,
47 int (*get_hw_id)(struct sr_scpi_dev_inst *scpi,
48 struct sr_scpi_hw_info **scpi_response))
49{
50 struct dev_context *devc;
51 struct sr_dev_inst *sdi;
52 struct sr_scpi_hw_info *hw_info;
53 struct sr_channel_group *cg;
54 struct sr_channel *ch;
55 const struct scpi_pps *device;
56 struct pps_channel *pch;
57 struct channel_spec *channels;
58 struct channel_group_spec *channel_groups, *cgs;
59 struct pps_channel_group *pcg;
60 GRegex *model_re;
61 GMatchInfo *model_mi;
62 GSList *l;
63 uint64_t mask;
64 unsigned int num_channels, num_channel_groups, ch_num, ch_idx, i, j;
65 int ret;
66 const char *vendor;
67 char ch_name[16];
68
69 if (get_hw_id(scpi, &hw_info) != SR_OK) {
70 sr_info("Couldn't get IDN response.");
71 return NULL;
72 }
73
74 device = NULL;
75 for (i = 0; i < num_pps_profiles; i++) {
76 vendor = sr_vendor_alias(hw_info->manufacturer);
77 if (g_ascii_strcasecmp(vendor, pps_profiles[i].vendor))
78 continue;
79 model_re = g_regex_new(pps_profiles[i].model, 0, 0, NULL);
80 if (g_regex_match(model_re, hw_info->model, 0, &model_mi))
81 device = &pps_profiles[i];
82 g_match_info_unref(model_mi);
83 g_regex_unref(model_re);
84 if (device)
85 break;
86 }
87 if (!device) {
88 sr_scpi_hw_info_free(hw_info);
89 return NULL;
90 }
91
92 sdi = g_malloc0(sizeof(struct sr_dev_inst));
93 sdi->vendor = g_strdup(vendor);
94 sdi->model = g_strdup(hw_info->model);
95 sdi->version = g_strdup(hw_info->firmware_version);
96 sdi->conn = scpi;
97 sdi->driver = &scpi_pps_driver_info;
98 sdi->inst_type = SR_INST_SCPI;
99 sdi->serial_num = g_strdup(hw_info->serial_number);
100
101 devc = g_malloc0(sizeof(struct dev_context));
102 devc->device = device;
103 sr_sw_limits_init(&devc->limits);
104 sdi->priv = devc;
105
106 if (device->num_channels) {
107 /* Static channels and groups. */
108 channels = (struct channel_spec *)device->channels;
109 num_channels = device->num_channels;
110 channel_groups = (struct channel_group_spec *)device->channel_groups;
111 num_channel_groups = device->num_channel_groups;
112 } else {
113 /* Channels and groups need to be probed. */
114 ret = device->probe_channels(sdi, hw_info, &channels, &num_channels,
115 &channel_groups, &num_channel_groups);
116 if (ret != SR_OK) {
117 sr_err("Failed to probe for channels.");
118 return NULL;
119 }
120 /*
121 * Since these were dynamically allocated, we'll need to free them
122 * later.
123 */
124 devc->channels = channels;
125 devc->channel_groups = channel_groups;
126 }
127
128 ch_idx = 0;
129 for (ch_num = 0; ch_num < num_channels; ch_num++) {
130 /* Create one channel per measurable output unit. */
131 for (i = 0; i < ARRAY_SIZE(pci); i++) {
132 if (!sr_scpi_cmd_get(devc->device->commands, pci[i].command))
133 continue;
134 g_snprintf(ch_name, 16, "%s%s", pci[i].prefix,
135 channels[ch_num].name);
136 ch = sr_channel_new(sdi, ch_idx++, SR_CHANNEL_ANALOG, TRUE,
137 ch_name);
138 pch = g_malloc0(sizeof(struct pps_channel));
139 pch->hw_output_idx = ch_num;
140 pch->hwname = channels[ch_num].name;
141 pch->mq = pci[i].mq;
142 ch->priv = pch;
143 }
144 }
145
146 for (i = 0; i < num_channel_groups; i++) {
147 cgs = &channel_groups[i];
148 cg = sr_channel_group_new(sdi, cgs->name, NULL);
149 for (j = 0, mask = 1; j < 64; j++, mask <<= 1) {
150 if (cgs->channel_index_mask & mask) {
151 for (l = sdi->channels; l; l = l->next) {
152 ch = l->data;
153 pch = ch->priv;
154 /* Add mqflags from channel_group_spec only to voltage
155 * and current channels.
156 */
157 if (pch->mq == SR_MQ_VOLTAGE || pch->mq == SR_MQ_CURRENT)
158 pch->mqflags = cgs->mqflags;
159 else
160 pch->mqflags = 0;
161 if (pch->hw_output_idx == j)
162 cg->channels = g_slist_append(cg->channels, ch);
163 }
164 }
165 }
166 pcg = g_malloc0(sizeof(struct pps_channel_group));
167 pcg->features = cgs->features;
168 cg->priv = pcg;
169 }
170
171 sr_scpi_hw_info_free(hw_info);
172 hw_info = NULL;
173
174 /* Don't send SCPI_CMD_LOCAL for HP 66xxB using SCPI over GPIB. */
175 if (!(devc->device->dialect == SCPI_DIALECT_HP_66XXB &&
176 scpi->transport == SCPI_TRANSPORT_LIBGPIB))
177 sr_scpi_cmd(sdi, devc->device->commands, 0, NULL, SCPI_CMD_LOCAL);
178
179 return sdi;
180}
181
182static gchar *hpib_get_revision(struct sr_scpi_dev_inst *scpi)
183{
184 int ret;
185 gboolean matches;
186 char *response;
187 GRegex *version_regex;
188
189 ret = sr_scpi_get_string(scpi, "ROM?", &response);
190 if (ret != SR_OK && !response)
191 return NULL;
192
193 /* Example version string: "B01 B01" */
194 version_regex = g_regex_new("[A-Z][0-9]{2} [A-Z][0-9]{2}", 0, 0, NULL);
195 matches = g_regex_match(version_regex, response, 0, NULL);
196 g_regex_unref(version_regex);
197
198 if (!matches) {
199 /* Not a valid version string. Ignore it. */
200 g_free(response);
201 response = NULL;
202 } else {
203 /* Replace space with dot. */
204 response[3] = '.';
205 }
206
207 return response;
208}
209
210/*
211 * This function assumes the response is in the form "HP<model_number>"
212 *
213 * HP made many GPIB (then called HP-IB) instruments before the SCPI command
214 * set was introduced into the standard. We haven't seen any non-HP instruments
215 * which respond to the "ID?" query, so assume all are HP for now.
216 */
217static int hpib_get_hw_id(struct sr_scpi_dev_inst *scpi,
218 struct sr_scpi_hw_info **scpi_response)
219{
220 int ret;
221 char *response;
222 struct sr_scpi_hw_info *hw_info;
223
224 ret = sr_scpi_get_string(scpi, "ID?", &response);
225 if ((ret != SR_OK) || !response)
226 return SR_ERR;
227
228 hw_info = g_malloc0(sizeof(struct sr_scpi_hw_info));
229
230 *scpi_response = hw_info;
231 hw_info->model = response;
232 hw_info->firmware_version = hpib_get_revision(scpi);
233 hw_info->manufacturer = g_strdup("HP");
234
235 return SR_OK;
236}
237
238static struct sr_dev_inst *probe_scpi_pps_device(struct sr_scpi_dev_inst *scpi)
239{
240 return probe_device(scpi, sr_scpi_get_hw_id);
241}
242
243static struct sr_dev_inst *probe_hpib_pps_device(struct sr_scpi_dev_inst *scpi)
244{
245 return probe_device(scpi, hpib_get_hw_id);
246}
247
248static GSList *scan_scpi_pps(struct sr_dev_driver *di, GSList *options)
249{
250 return sr_scpi_scan(di->context, options, probe_scpi_pps_device);
251}
252
253static GSList *scan_hpib_pps(struct sr_dev_driver *di, GSList *options)
254{
255 const char *conn;
256
257 /*
258 * Only scan for HP-IB devices when conn= was specified, to not
259 * break SCPI devices' operation.
260 */
261 conn = NULL;
262 (void)sr_serial_extract_options(options, &conn, NULL);
263 if (!conn)
264 return NULL;
265
266 return sr_scpi_scan(di->context, options, probe_hpib_pps_device);
267}
268
269static int dev_open(struct sr_dev_inst *sdi)
270{
271 struct dev_context *devc;
272 struct sr_scpi_dev_inst *scpi;
273 GVariant *beeper;
274
275 scpi = sdi->conn;
276 if (sr_scpi_open(scpi) < 0)
277 return SR_ERR;
278
279 devc = sdi->priv;
280
281 /* Don't send SCPI_CMD_REMOTE for HP 66xxB using SCPI over GPIB. */
282 if (!(devc->device->dialect == SCPI_DIALECT_HP_66XXB &&
283 scpi->transport == SCPI_TRANSPORT_LIBGPIB))
284 sr_scpi_cmd(sdi, devc->device->commands, 0, NULL, SCPI_CMD_REMOTE);
285
286 devc->beeper_was_set = FALSE;
287 if (sr_scpi_cmd_resp(sdi, devc->device->commands, 0, NULL,
288 &beeper, G_VARIANT_TYPE_BOOLEAN, SCPI_CMD_BEEPER) == SR_OK) {
289 if (g_variant_get_boolean(beeper)) {
290 devc->beeper_was_set = TRUE;
291 sr_scpi_cmd(sdi, devc->device->commands,
292 0, NULL, SCPI_CMD_BEEPER_DISABLE);
293 }
294 g_variant_unref(beeper);
295 }
296
297 return SR_OK;
298}
299
300static int dev_close(struct sr_dev_inst *sdi)
301{
302 struct sr_scpi_dev_inst *scpi;
303 struct dev_context *devc;
304
305 devc = sdi->priv;
306 scpi = sdi->conn;
307
308 if (!scpi)
309 return SR_ERR_BUG;
310
311 if (devc->beeper_was_set)
312 sr_scpi_cmd(sdi, devc->device->commands,
313 0, NULL, SCPI_CMD_BEEPER_ENABLE);
314
315 /* Don't send SCPI_CMD_LOCAL for HP 66xxB using SCPI over GPIB. */
316 if (!(devc->device->dialect == SCPI_DIALECT_HP_66XXB &&
317 scpi->transport == SCPI_TRANSPORT_LIBGPIB))
318 sr_scpi_cmd(sdi, devc->device->commands, 0, NULL, SCPI_CMD_LOCAL);
319
320 return sr_scpi_close(scpi);
321}
322
323static void clear_helper(struct dev_context *devc)
324{
325 g_free(devc->channels);
326 g_free(devc->channel_groups);
327}
328
329static int dev_clear(const struct sr_dev_driver *di)
330{
331 return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
332}
333
334static int config_get(uint32_t key, GVariant **data,
335 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
336{
337 struct dev_context *devc;
338 const GVariantType *gvtype;
339 unsigned int i;
340 int channel_group_cmd;
341 char *channel_group_name;
342 int cmd, ret;
343 const char *s;
344 int reg;
345 gboolean is_hmp_sqii;
346
347 if (!sdi)
348 return SR_ERR_ARG;
349
350 devc = sdi->priv;
351
352 if (cg) {
353 /*
354 * These options only apply to channel groups with a single
355 * channel -- they're per-channel settings for the device.
356 */
357
358 /*
359 * Config keys are handled below depending on whether a channel
360 * group was provided by the frontend. However some of these
361 * take a CG on one PPS but not on others. Check the device's
362 * profile for that here, and NULL out the channel group as needed.
363 */
364 for (i = 0; i < devc->device->num_devopts; i++) {
365 if (devc->device->devopts[i] == key) {
366 cg = NULL;
367 break;
368 }
369 }
370 }
371
372 gvtype = NULL;
373 cmd = -1;
374 switch (key) {
375 case SR_CONF_ENABLED:
376 gvtype = G_VARIANT_TYPE_BOOLEAN;
377 cmd = SCPI_CMD_GET_OUTPUT_ENABLED;
378 break;
379 case SR_CONF_VOLTAGE:
380 gvtype = G_VARIANT_TYPE_DOUBLE;
381 cmd = SCPI_CMD_GET_MEAS_VOLTAGE;
382 break;
383 case SR_CONF_VOLTAGE_TARGET:
384 gvtype = G_VARIANT_TYPE_DOUBLE;
385 cmd = SCPI_CMD_GET_VOLTAGE_TARGET;
386 break;
387 case SR_CONF_OUTPUT_FREQUENCY:
388 gvtype = G_VARIANT_TYPE_DOUBLE;
389 cmd = SCPI_CMD_GET_MEAS_FREQUENCY;
390 break;
391 case SR_CONF_OUTPUT_FREQUENCY_TARGET:
392 gvtype = G_VARIANT_TYPE_DOUBLE;
393 cmd = SCPI_CMD_GET_FREQUENCY_TARGET;
394 break;
395 case SR_CONF_CURRENT:
396 gvtype = G_VARIANT_TYPE_DOUBLE;
397 cmd = SCPI_CMD_GET_MEAS_CURRENT;
398 break;
399 case SR_CONF_CURRENT_LIMIT:
400 gvtype = G_VARIANT_TYPE_DOUBLE;
401 cmd = SCPI_CMD_GET_CURRENT_LIMIT;
402 break;
403 case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
404 if (devc->device->dialect == SCPI_DIALECT_HMP) {
405 /* OVP is always enabled. */
406 *data = g_variant_new_boolean(TRUE);
407 return 0;
408 }
409 gvtype = G_VARIANT_TYPE_BOOLEAN;
410 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED;
411 break;
412 case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
413 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
414 devc->device->dialect == SCPI_DIALECT_HP_COMP)
415 gvtype = G_VARIANT_TYPE_STRING;
416 else
417 gvtype = G_VARIANT_TYPE_BOOLEAN;
418 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE;
419 break;
420 case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
421 gvtype = G_VARIANT_TYPE_DOUBLE;
422 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD;
423 break;
424 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
425 gvtype = G_VARIANT_TYPE_BOOLEAN;
426 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED;
427 break;
428 case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
429 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
430 devc->device->dialect == SCPI_DIALECT_HP_COMP)
431 gvtype = G_VARIANT_TYPE_STRING;
432 else
433 gvtype = G_VARIANT_TYPE_BOOLEAN;
434 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE;
435 break;
436 case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
437 gvtype = G_VARIANT_TYPE_DOUBLE;
438 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD;
439 break;
440 case SR_CONF_OVER_CURRENT_PROTECTION_DELAY:
441 gvtype = G_VARIANT_TYPE_DOUBLE;
442 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_DELAY;
443 break;
444 case SR_CONF_OVER_TEMPERATURE_PROTECTION:
445 if (devc->device->dialect == SCPI_DIALECT_HMP) {
446 /* OTP is always enabled. */
447 *data = g_variant_new_boolean(TRUE);
448 return 0;
449 }
450 gvtype = G_VARIANT_TYPE_BOOLEAN;
451 cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION;
452 break;
453 case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
454 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
455 devc->device->dialect == SCPI_DIALECT_HP_COMP ||
456 devc->device->dialect == SCPI_DIALECT_HMP)
457 gvtype = G_VARIANT_TYPE_STRING;
458 else
459 gvtype = G_VARIANT_TYPE_BOOLEAN;
460 cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE;
461 break;
462 case SR_CONF_REGULATION:
463 gvtype = G_VARIANT_TYPE_STRING;
464 cmd = SCPI_CMD_GET_OUTPUT_REGULATION;
465 break;
466 default:
467 return sr_sw_limits_config_get(&devc->limits, key, data);
468 }
469 if (!gvtype)
470 return SR_ERR_NA;
471
472 channel_group_cmd = 0;
473 channel_group_name = NULL;
474 if (cg) {
475 channel_group_cmd = SCPI_CMD_SELECT_CHANNEL;
476 channel_group_name = g_strdup(cg->name);
477 }
478
479 is_hmp_sqii = FALSE;
480 is_hmp_sqii |= cmd == SCPI_CMD_GET_OUTPUT_REGULATION;
481 is_hmp_sqii |= cmd == SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE;
482 is_hmp_sqii &= devc->device->dialect == SCPI_DIALECT_HMP;
483 if (is_hmp_sqii) {
484 if (!cg) {
485 /* STAT:QUES:INST:ISUMx query requires channel spec. */
486 sr_err("Need a channel group for regulation or OTP-active query.");
487 return SR_ERR_NA;
488 }
489 ret = sr_scpi_cmd_resp(sdi, devc->device->commands,
490 0, NULL, data, gvtype, cmd, channel_group_name);
491 } else {
492 ret = sr_scpi_cmd_resp(sdi, devc->device->commands,
493 channel_group_cmd, channel_group_name, data, gvtype, cmd);
494 }
495 g_free(channel_group_name);
496
497 /*
498 * Handle special cases
499 */
500
501 if (cmd == SCPI_CMD_GET_OUTPUT_REGULATION) {
502 if (devc->device->dialect == SCPI_DIALECT_PHILIPS) {
503 /*
504 * The Philips PM2800 series returns VOLT/CURR. We always return
505 * a GVariant string in the Rigol notation (CV/CC/UR).
506 */
507 s = g_variant_get_string(*data, NULL);
508 if (!g_strcmp0(s, "VOLT")) {
509 g_variant_unref(*data);
510 *data = g_variant_new_string("CV");
511 } else if (!g_strcmp0(s, "CURR")) {
512 g_variant_unref(*data);
513 *data = g_variant_new_string("CC");
514 }
515 }
516 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
517 /* Evaluate Status Register from a HP 66xx in COMP mode. */
518 s = g_variant_get_string(*data, NULL);
519 sr_atoi(s, &reg);
520 g_variant_unref(*data);
521 if (reg & (1 << 0))
522 *data = g_variant_new_string("CV");
523 else if (reg & (1 << 1))
524 *data = g_variant_new_string("CC");
525 else if (reg & (1 << 2))
526 *data = g_variant_new_string("UR");
527 else if (reg & (1 << 9))
528 *data = g_variant_new_string("CC-");
529 else
530 *data = g_variant_new_string("");
531 }
532 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
533 /* Evaluate Operational Status Register from a HP 66xxB. */
534 s = g_variant_get_string(*data, NULL);
535 sr_atoi(s, &reg);
536 g_variant_unref(*data);
537 if (reg & (1 << 8))
538 *data = g_variant_new_string("CV");
539 else if (reg & (1 << 10))
540 *data = g_variant_new_string("CC");
541 else if (reg & (1 << 11))
542 *data = g_variant_new_string("CC-");
543 else
544 *data = g_variant_new_string("UR");
545 }
546 if (devc->device->dialect == SCPI_DIALECT_HMP) {
547 /* Evaluate Condition Status Register from a HMP series device. */
548 s = g_variant_get_string(*data, NULL);
549 sr_atoi(s, &reg);
550 g_variant_unref(*data);
551 if (reg & (1 << 0))
552 *data = g_variant_new_string("CC");
553 else if (reg & (1 << 1))
554 *data = g_variant_new_string("CV");
555 else
556 *data = g_variant_new_string("UR");
557 }
558
559 s = g_variant_get_string(*data, NULL);
560 if (g_strcmp0(s, "CV") && g_strcmp0(s, "CC") && g_strcmp0(s, "CC-") &&
561 g_strcmp0(s, "UR") && g_strcmp0(s, "")) {
562
563 sr_err("Unknown response to SCPI_CMD_GET_OUTPUT_REGULATION: %s", s);
564 ret = SR_ERR_DATA;
565 }
566 }
567
568 if (cmd == SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE) {
569 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
570 /* Evaluate Status Register from a HP 66xx in COMP mode. */
571 s = g_variant_get_string(*data, NULL);
572 sr_atoi(s, &reg);
573 g_variant_unref(*data);
574 *data = g_variant_new_boolean(reg & (1 << 3));
575 }
576 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
577 /* Evaluate Questionable Status Register bit 0 from a HP 66xxB. */
578 s = g_variant_get_string(*data, NULL);
579 sr_atoi(s, &reg);
580 g_variant_unref(*data);
581 *data = g_variant_new_boolean(reg & (1 << 0));
582 }
583 }
584
585 if (cmd == SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE) {
586 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
587 /* Evaluate Status Register from a HP 66xx in COMP mode. */
588 s = g_variant_get_string(*data, NULL);
589 sr_atoi(s, &reg);
590 g_variant_unref(*data);
591 *data = g_variant_new_boolean(reg & (1 << 6));
592 }
593 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
594 /* Evaluate Questionable Status Register bit 1 from a HP 66xxB. */
595 s = g_variant_get_string(*data, NULL);
596 sr_atoi(s, &reg);
597 g_variant_unref(*data);
598 *data = g_variant_new_boolean(reg & (1 << 1));
599 }
600 }
601
602 if (cmd == SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE) {
603 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
604 /* Evaluate Status Register from a HP 66xx in COMP mode. */
605 s = g_variant_get_string(*data, NULL);
606 sr_atoi(s, &reg);
607 g_variant_unref(*data);
608 *data = g_variant_new_boolean(reg & (1 << 4));
609 }
610 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
611 devc->device->dialect == SCPI_DIALECT_HMP) {
612 /* Evaluate Questionable Status Register bit 4 from a HP 66xxB. */
613 s = g_variant_get_string(*data, NULL);
614 sr_atoi(s, &reg);
615 g_variant_unref(*data);
616 *data = g_variant_new_boolean(reg & (1 << 4));
617 }
618 }
619
620 return ret;
621}
622
623static int config_set(uint32_t key, GVariant *data,
624 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
625{
626 struct dev_context *devc;
627 double d;
628 int channel_group_cmd;
629 char *channel_group_name;
630 int ret;
631
632 if (!sdi)
633 return SR_ERR_ARG;
634
635 channel_group_cmd = 0;
636 channel_group_name = NULL;
637 if (cg) {
638 channel_group_cmd = SCPI_CMD_SELECT_CHANNEL;
639 channel_group_name = g_strdup(cg->name);
640 }
641
642 devc = sdi->priv;
643
644 switch (key) {
645 case SR_CONF_ENABLED:
646 if (g_variant_get_boolean(data))
647 ret = sr_scpi_cmd(sdi, devc->device->commands,
648 channel_group_cmd, channel_group_name,
649 SCPI_CMD_SET_OUTPUT_ENABLE);
650 else
651 ret = sr_scpi_cmd(sdi, devc->device->commands,
652 channel_group_cmd, channel_group_name,
653 SCPI_CMD_SET_OUTPUT_DISABLE);
654 break;
655 case SR_CONF_VOLTAGE_TARGET:
656 d = g_variant_get_double(data);
657 ret = sr_scpi_cmd(sdi, devc->device->commands,
658 channel_group_cmd, channel_group_name,
659 SCPI_CMD_SET_VOLTAGE_TARGET, d);
660 break;
661 case SR_CONF_OUTPUT_FREQUENCY_TARGET:
662 d = g_variant_get_double(data);
663 ret = sr_scpi_cmd(sdi, devc->device->commands,
664 channel_group_cmd, channel_group_name,
665 SCPI_CMD_SET_FREQUENCY_TARGET, d);
666 break;
667 case SR_CONF_CURRENT_LIMIT:
668 d = g_variant_get_double(data);
669 ret = sr_scpi_cmd(sdi, devc->device->commands,
670 channel_group_cmd, channel_group_name,
671 SCPI_CMD_SET_CURRENT_LIMIT, d);
672 break;
673 case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
674 if (g_variant_get_boolean(data))
675 ret = sr_scpi_cmd(sdi, devc->device->commands,
676 channel_group_cmd, channel_group_name,
677 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE);
678 else
679 ret = sr_scpi_cmd(sdi, devc->device->commands,
680 channel_group_cmd, channel_group_name,
681 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE);
682 break;
683 case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
684 d = g_variant_get_double(data);
685 ret = sr_scpi_cmd(sdi, devc->device->commands,
686 channel_group_cmd, channel_group_name,
687 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, d);
688 break;
689 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
690 if (g_variant_get_boolean(data))
691 ret = sr_scpi_cmd(sdi, devc->device->commands,
692 channel_group_cmd, channel_group_name,
693 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE);
694 else
695 ret = sr_scpi_cmd(sdi, devc->device->commands,
696 channel_group_cmd, channel_group_name,
697 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE);
698 break;
699 case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
700 d = g_variant_get_double(data);
701 ret = sr_scpi_cmd(sdi, devc->device->commands,
702 channel_group_cmd, channel_group_name,
703 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD, d);
704 break;
705 case SR_CONF_OVER_CURRENT_PROTECTION_DELAY:
706 d = g_variant_get_double(data);
707 ret = sr_scpi_cmd(sdi, devc->device->commands,
708 channel_group_cmd, channel_group_name,
709 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DELAY, d);
710 break;
711 case SR_CONF_OVER_TEMPERATURE_PROTECTION:
712 if (g_variant_get_boolean(data))
713 ret = sr_scpi_cmd(sdi, devc->device->commands,
714 channel_group_cmd, channel_group_name,
715 SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE);
716 else
717 ret = sr_scpi_cmd(sdi, devc->device->commands,
718 channel_group_cmd, channel_group_name,
719 SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE);
720 break;
721 default:
722 ret = sr_sw_limits_config_set(&devc->limits, key, data);
723 }
724
725 g_free(channel_group_name);
726
727 return ret;
728}
729
730static int config_list(uint32_t key, GVariant **data,
731 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
732{
733 struct dev_context *devc;
734 struct sr_channel *ch;
735 struct pps_channel *pch;
736 const struct channel_spec *ch_spec;
737 int i;
738 const char *s[16];
739
740 devc = (sdi) ? sdi->priv : NULL;
741
742 if (!cg) {
743 switch (key) {
744 case SR_CONF_SCAN_OPTIONS:
745 case SR_CONF_DEVICE_OPTIONS:
746 return std_opts_config_list(key, data, sdi, cg,
747 ARRAY_AND_SIZE(scanopts),
748 ARRAY_AND_SIZE(drvopts),
749 (devc && devc->device) ? devc->device->devopts : NULL,
750 (devc && devc->device) ? devc->device->num_devopts : 0);
751 break;
752 case SR_CONF_CHANNEL_CONFIG:
753 if (!devc || !devc->device)
754 return SR_ERR_ARG;
755 /* Not used. */
756 i = 0;
757 if (devc->device->features & PPS_INDEPENDENT)
758 s[i++] = "Independent";
759 if (devc->device->features & PPS_SERIES)
760 s[i++] = "Series";
761 if (devc->device->features & PPS_PARALLEL)
762 s[i++] = "Parallel";
763 if (i == 0) {
764 /*
765 * Shouldn't happen: independent-only devices
766 * shouldn't advertise this option at all.
767 */
768 return SR_ERR_NA;
769 }
770 *data = g_variant_new_strv(s, i);
771 break;
772 default:
773 return SR_ERR_NA;
774 }
775 } else {
776 /*
777 * Per-channel-group options depending on a channel are actually
778 * done with the first channel. Channel groups in PPS can have
779 * more than one channel, but they will typically be of equal
780 * specification for use in series or parallel mode.
781 */
782 ch = cg->channels->data;
783 pch = ch->priv;
784 if (!devc || !devc->device)
785 return SR_ERR_ARG;
786 ch_spec = &(devc->device->channels[pch->hw_output_idx]);
787
788 switch (key) {
789 case SR_CONF_DEVICE_OPTIONS:
790 *data = std_gvar_array_u32(devc->device->devopts_cg, devc->device->num_devopts_cg);
791 break;
792 case SR_CONF_VOLTAGE_TARGET:
793 *data = std_gvar_min_max_step_array(ch_spec->voltage);
794 break;
795 case SR_CONF_OUTPUT_FREQUENCY_TARGET:
796 *data = std_gvar_min_max_step_array(ch_spec->frequency);
797 break;
798 case SR_CONF_CURRENT_LIMIT:
799 *data = std_gvar_min_max_step_array(ch_spec->current);
800 break;
801 case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
802 *data = std_gvar_min_max_step_array(ch_spec->ovp);
803 break;
804 case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
805 *data = std_gvar_min_max_step_array(ch_spec->ocp);
806 break;
807 case SR_CONF_OVER_CURRENT_PROTECTION_DELAY:
808 *data = std_gvar_min_max_step_array(ch_spec->ocp_delay);
809 break;
810 default:
811 return SR_ERR_NA;
812 }
813 }
814
815 return SR_OK;
816}
817
818static int dev_acquisition_start(const struct sr_dev_inst *sdi)
819{
820 struct dev_context *devc;
821 struct sr_scpi_dev_inst *scpi;
822 int ret;
823
824 devc = sdi->priv;
825 scpi = sdi->conn;
826
827 /* Prime the pipe with the first channel. */
828 devc->cur_acquisition_channel = sr_next_enabled_channel(sdi, NULL);
829
830 /* Device specific initialization before acquisition starts. */
831 if (devc->device->init_acquisition)
832 devc->device->init_acquisition(sdi);
833
834 if ((ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
835 scpi_pps_receive_data, (void *)sdi)) != SR_OK)
836 return ret;
837 std_session_send_df_header(sdi);
838 sr_sw_limits_acquisition_start(&devc->limits);
839
840 return SR_OK;
841}
842
843static int dev_acquisition_stop(struct sr_dev_inst *sdi)
844{
845 struct sr_scpi_dev_inst *scpi;
846
847 scpi = sdi->conn;
848
849 sr_scpi_source_remove(sdi->session, scpi);
850
851 std_session_send_df_end(sdi);
852
853 return SR_OK;
854}
855
856static struct sr_dev_driver scpi_pps_driver_info = {
857 .name = "scpi-pps",
858 .longname = "SCPI PPS",
859 .api_version = 1,
860 .init = std_init,
861 .cleanup = std_cleanup,
862 .scan = scan_scpi_pps,
863 .dev_list = std_dev_list,
864 .dev_clear = dev_clear,
865 .config_get = config_get,
866 .config_set = config_set,
867 .config_list = config_list,
868 .dev_open = dev_open,
869 .dev_close = dev_close,
870 .dev_acquisition_start = dev_acquisition_start,
871 .dev_acquisition_stop = dev_acquisition_stop,
872 .context = NULL,
873};
874
875static struct sr_dev_driver hp_ib_pps_driver_info = {
876 .name = "hpib-pps",
877 .longname = "HP-IB PPS",
878 .api_version = 1,
879 .init = std_init,
880 .cleanup = std_cleanup,
881 .scan = scan_hpib_pps,
882 .dev_list = std_dev_list,
883 .dev_clear = dev_clear,
884 .config_get = config_get,
885 .config_set = config_set,
886 .config_list = config_list,
887 .dev_open = dev_open,
888 .dev_close = dev_close,
889 .dev_acquisition_start = dev_acquisition_start,
890 .dev_acquisition_stop = dev_acquisition_stop,
891 .context = NULL,
892};
893SR_REGISTER_DEV_DRIVER(scpi_pps_driver_info);
894SR_REGISTER_DEV_DRIVER(hp_ib_pps_driver_info);
Hardware access and backend lib