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scpi-pps: Add config keys SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE,
[libsigrok.git] / src / hardware / scpi-pps / api.c
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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 = g_malloc0(sizeof(struct sr_channel_group));
149 cg->name = g_strdup(cgs->name);
150 for (j = 0, mask = 1; j < 64; j++, mask <<= 1) {
151 if (cgs->channel_index_mask & mask) {
152 for (l = sdi->channels; l; l = l->next) {
153 ch = l->data;
154 pch = ch->priv;
155 /* Add mqflags from channel_group_spec only to voltage
156 * and current channels
157 */
158 if (pch->mq == SR_MQ_VOLTAGE || pch->mq == SR_MQ_CURRENT)
159 pch->mqflags = cgs->mqflags;
160 else
161 pch->mqflags = 0;
162 if (pch->hw_output_idx == j)
163 cg->channels = g_slist_append(cg->channels, ch);
164 }
165 }
166 }
167 pcg = g_malloc0(sizeof(struct pps_channel_group));
168 pcg->features = cgs->features;
169 cg->priv = pcg;
170 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
171 }
172
173 sr_scpi_hw_info_free(hw_info);
174 hw_info = NULL;
175
176 sr_scpi_cmd(sdi, devc->device->commands, 0, NULL, SCPI_CMD_LOCAL);
177
178 return sdi;
179}
180
181static gchar *hpib_get_revision(struct sr_scpi_dev_inst *scpi)
182{
183 int ret;
184 gboolean matches;
185 char *response;
186 GRegex *version_regex;
187
188 ret = sr_scpi_get_string(scpi, "ROM?", &response);
189 if (ret != SR_OK && !response)
190 return NULL;
191
192 /* Example version string: "B01 B01" */
193 version_regex = g_regex_new("[A-Z][0-9]{2} [A-Z][0-9]{2}", 0, 0, NULL);
194 matches = g_regex_match(version_regex, response, 0, NULL);
195 g_regex_unref(version_regex);
196
197 if (!matches) {
198 /* Not a valid version string. Ignore it. */
199 g_free(response);
200 response = NULL;
201 } else {
202 /* Replace space with dot. */
203 response[3] = '.';
204 }
205
206 return response;
207}
208
209/*
210 * This function assumes the response is in the form "HP<model_number>"
211 *
212 * HP made many GPIB (then called HP-IB) instruments before the SCPI command
213 * set was introduced into the standard. We haven't seen any non-HP instruments
214 * which respond to the "ID?" query, so assume all are HP for now.
215 */
216static int hpib_get_hw_id(struct sr_scpi_dev_inst *scpi,
217 struct sr_scpi_hw_info **scpi_response)
218{
219 int ret;
220 char *response;
221 struct sr_scpi_hw_info *hw_info;
222
223 ret = sr_scpi_get_string(scpi, "ID?", &response);
224 if ((ret != SR_OK) || !response)
225 return SR_ERR;
226
227 hw_info = g_malloc0(sizeof(struct sr_scpi_hw_info));
228
229 *scpi_response = hw_info;
230 hw_info->model = response;
231 hw_info->firmware_version = hpib_get_revision(scpi);
232 hw_info->manufacturer = g_strdup("HP");
233
234 return SR_OK;
235}
236
237static struct sr_dev_inst *probe_scpi_pps_device(struct sr_scpi_dev_inst *scpi)
238{
239 return probe_device(scpi, sr_scpi_get_hw_id);
240}
241
242static struct sr_dev_inst *probe_hpib_pps_device(struct sr_scpi_dev_inst *scpi)
243{
244 return probe_device(scpi, hpib_get_hw_id);
245}
246
247static GSList *scan_scpi_pps(struct sr_dev_driver *di, GSList *options)
248{
249 return sr_scpi_scan(di->context, options, probe_scpi_pps_device);
250}
251
252static GSList *scan_hpib_pps(struct sr_dev_driver *di, GSList *options)
253{
254 return sr_scpi_scan(di->context, options, probe_hpib_pps_device);
255}
256
257static int dev_open(struct sr_dev_inst *sdi)
258{
259 struct dev_context *devc;
260 struct sr_scpi_dev_inst *scpi;
261 GVariant *beeper;
262
263 scpi = sdi->conn;
264 if (sr_scpi_open(scpi) < 0)
265 return SR_ERR;
266
267 devc = sdi->priv;
268 sr_scpi_cmd(sdi, devc->device->commands, 0, NULL, SCPI_CMD_REMOTE);
269 devc->beeper_was_set = FALSE;
270 if (sr_scpi_cmd_resp(sdi, devc->device->commands, 0, NULL,
271 &beeper, G_VARIANT_TYPE_BOOLEAN, SCPI_CMD_BEEPER) == SR_OK) {
272 if (g_variant_get_boolean(beeper)) {
273 devc->beeper_was_set = TRUE;
274 sr_scpi_cmd(sdi, devc->device->commands,
275 0, NULL, SCPI_CMD_BEEPER_DISABLE);
276 }
277 g_variant_unref(beeper);
278 }
279
280 return SR_OK;
281}
282
283static int dev_close(struct sr_dev_inst *sdi)
284{
285 struct sr_scpi_dev_inst *scpi;
286 struct dev_context *devc;
287
288 devc = sdi->priv;
289 scpi = sdi->conn;
290
291 if (!scpi)
292 return SR_ERR_BUG;
293
294 if (devc->beeper_was_set)
295 sr_scpi_cmd(sdi, devc->device->commands,
296 0, NULL, SCPI_CMD_BEEPER_ENABLE);
297 sr_scpi_cmd(sdi, devc->device->commands, 0, NULL, SCPI_CMD_LOCAL);
298
299 return sr_scpi_close(scpi);
300}
301
302static void clear_helper(struct dev_context *devc)
303{
304 g_free(devc->channels);
305 g_free(devc->channel_groups);
306}
307
308static int dev_clear(const struct sr_dev_driver *di)
309{
310 return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
311}
312
313static int config_get(uint32_t key, GVariant **data,
314 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
315{
316 struct dev_context *devc;
317 const GVariantType *gvtype;
318 unsigned int i;
319 int channel_group_cmd;
320 char *channel_group_name;
321 int cmd, ret;
322 const char *s;
323 int reg;
324
325 if (!sdi)
326 return SR_ERR_ARG;
327
328 devc = sdi->priv;
329
330 if (cg) {
331 /*
332 * These options only apply to channel groups with a single
333 * channel -- they're per-channel settings for the device.
334 */
335
336 /*
337 * Config keys are handled below depending on whether a channel
338 * group was provided by the frontend. However some of these
339 * take a CG on one PPS but not on others. Check the device's
340 * profile for that here, and NULL out the channel group as needed.
341 */
342 for (i = 0; i < devc->device->num_devopts; i++) {
343 if (devc->device->devopts[i] == key) {
344 cg = NULL;
345 break;
346 }
347 }
348 }
349
350 gvtype = NULL;
351 cmd = -1;
352 switch (key) {
353 case SR_CONF_ENABLED:
354 gvtype = G_VARIANT_TYPE_BOOLEAN;
355 cmd = SCPI_CMD_GET_OUTPUT_ENABLED;
356 break;
357 case SR_CONF_VOLTAGE:
358 gvtype = G_VARIANT_TYPE_DOUBLE;
359 cmd = SCPI_CMD_GET_MEAS_VOLTAGE;
360 break;
361 case SR_CONF_VOLTAGE_TARGET:
362 gvtype = G_VARIANT_TYPE_DOUBLE;
363 cmd = SCPI_CMD_GET_VOLTAGE_TARGET;
364 break;
365 case SR_CONF_OUTPUT_FREQUENCY:
366 gvtype = G_VARIANT_TYPE_DOUBLE;
367 cmd = SCPI_CMD_GET_MEAS_FREQUENCY;
368 break;
369 case SR_CONF_OUTPUT_FREQUENCY_TARGET:
370 gvtype = G_VARIANT_TYPE_DOUBLE;
371 cmd = SCPI_CMD_GET_FREQUENCY_TARGET;
372 break;
373 case SR_CONF_CURRENT:
374 gvtype = G_VARIANT_TYPE_DOUBLE;
375 cmd = SCPI_CMD_GET_MEAS_CURRENT;
376 break;
377 case SR_CONF_CURRENT_LIMIT:
378 gvtype = G_VARIANT_TYPE_DOUBLE;
379 cmd = SCPI_CMD_GET_CURRENT_LIMIT;
380 break;
381 case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
382 gvtype = G_VARIANT_TYPE_BOOLEAN;
383 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED;
384 break;
385 case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
386 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
387 devc->device->dialect == SCPI_DIALECT_HP_COMP)
388 gvtype = G_VARIANT_TYPE_STRING;
389 else
390 gvtype = G_VARIANT_TYPE_BOOLEAN;
391 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE;
392 break;
393 case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
394 gvtype = G_VARIANT_TYPE_DOUBLE;
395 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD;
396 break;
397 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
398 gvtype = G_VARIANT_TYPE_BOOLEAN;
399 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED;
400 break;
401 case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
402 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
403 devc->device->dialect == SCPI_DIALECT_HP_COMP)
404 gvtype = G_VARIANT_TYPE_STRING;
405 else
406 gvtype = G_VARIANT_TYPE_BOOLEAN;
407 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE;
408 break;
409 case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
410 gvtype = G_VARIANT_TYPE_DOUBLE;
411 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD;
412 break;
413 case SR_CONF_OVER_TEMPERATURE_PROTECTION:
414 gvtype = G_VARIANT_TYPE_BOOLEAN;
415 cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION;
416 break;
417 case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
418 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB ||
419 devc->device->dialect == SCPI_DIALECT_HP_COMP)
420 gvtype = G_VARIANT_TYPE_STRING;
421 else
422 gvtype = G_VARIANT_TYPE_BOOLEAN;
423 cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE;
424 break;
425 case SR_CONF_REGULATION:
426 gvtype = G_VARIANT_TYPE_STRING;
427 cmd = SCPI_CMD_GET_OUTPUT_REGULATION;
428 break;
429 default:
430 return sr_sw_limits_config_get(&devc->limits, key, data);
431 }
432 if (!gvtype)
433 return SR_ERR_NA;
434
435 channel_group_cmd = 0;
436 channel_group_name = NULL;
437 if (cg) {
438 channel_group_cmd = SCPI_CMD_SELECT_CHANNEL;
439 channel_group_name = g_strdup(cg->name);
440 }
441
442 ret = sr_scpi_cmd_resp(sdi, devc->device->commands,
443 channel_group_cmd, channel_group_name, data, gvtype, cmd);
444 g_free(channel_group_name);
445
446 /*
447 * Handle special cases
448 */
449
450 if (cmd == SCPI_CMD_GET_OUTPUT_REGULATION) {
451 if (devc->device->dialect == SCPI_DIALECT_PHILIPS) {
452 /*
453 * The Philips PM2800 series returns VOLT/CURR. We always return
454 * a GVariant string in the Rigol notation (CV/CC/UR).
455 */
456 s = g_variant_get_string(*data, NULL);
457 if (!g_strcmp0(s, "VOLT")) {
458 g_variant_unref(*data);
459 *data = g_variant_new_string("CV");
460 } else if (!g_strcmp0(s, "CURR")) {
461 g_variant_unref(*data);
462 *data = g_variant_new_string("CC");
463 }
464 }
465 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
466 /* Evaluate Status Register from a HP 66xx in COMP mode. */
467 s = g_variant_get_string(*data, NULL);
468 sr_atoi(s, &reg);
469 g_variant_unref(*data);
470 if (reg & (1 << 0))
471 *data = g_variant_new_string("CV");
472 else if (reg & (1 << 1))
473 *data = g_variant_new_string("CC");
474 else if (reg & (1 << 2))
475 *data = g_variant_new_string("UR");
476 else if (reg & (1 << 9))
477 *data = g_variant_new_string("CC-");
478 else
479 *data = g_variant_new_string("");
480 }
481 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
482 /* Evaluate Operational Status Register from a HP 66xxB. */
483 s = g_variant_get_string(*data, NULL);
484 sr_atoi(s, &reg);
485 g_variant_unref(*data);
486 if (reg & (1 << 8))
487 *data = g_variant_new_string("CV");
488 else if (reg & (1 << 10))
489 *data = g_variant_new_string("CC");
490 else if (reg & (1 << 11))
491 *data = g_variant_new_string("CC-");
492 else
493 *data = g_variant_new_string("UR");
494 }
495
496 s = g_variant_get_string(*data, NULL);
497 if (g_strcmp0(s, "CV") && g_strcmp0(s, "CC") && g_strcmp0(s, "CC-") &&
498 g_strcmp0(s, "UR") && g_strcmp0(s, "")) {
499
500 sr_err("Unknown response to SCPI_CMD_GET_OUTPUT_REGULATION: %s", s);
501 ret = SR_ERR_DATA;
502 }
503 }
504
505 if (cmd == SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE) {
506 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
507 /* Evaluate Status Register from a HP 66xx in COMP mode. */
508 s = g_variant_get_string(*data, NULL);
509 sr_atoi(s, &reg);
510 g_variant_unref(*data);
511 *data = g_variant_new_boolean(reg & (1 << 3));
512 }
513 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
514 /* Evaluate Questionable Status Register bit 0 from a HP 66xxB. */
515 s = g_variant_get_string(*data, NULL);
516 sr_atoi(s, &reg);
517 g_variant_unref(*data);
518 *data = g_variant_new_boolean(reg & (1 << 0));
519 }
520 }
521
522 if (cmd == SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE) {
523 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
524 /* Evaluate Status Register from a HP 66xx in COMP mode. */
525 s = g_variant_get_string(*data, NULL);
526 sr_atoi(s, &reg);
527 g_variant_unref(*data);
528 *data = g_variant_new_boolean(reg & (1 << 6));
529 }
530 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
531 /* Evaluate Questionable Status Register bit 1 from a HP 66xxB. */
532 s = g_variant_get_string(*data, NULL);
533 sr_atoi(s, &reg);
534 g_variant_unref(*data);
535 *data = g_variant_new_boolean(reg & (1 << 1));
536 }
537 }
538
539 if (cmd == SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION_ACTIVE) {
540 if (devc->device->dialect == SCPI_DIALECT_HP_COMP) {
541 /* Evaluate Status Register from a HP 66xx in COMP mode. */
542 s = g_variant_get_string(*data, NULL);
543 sr_atoi(s, &reg);
544 g_variant_unref(*data);
545 *data = g_variant_new_boolean(reg & (1 << 4));
546 }
547 if (devc->device->dialect == SCPI_DIALECT_HP_66XXB) {
548 /* Evaluate Questionable Status Register bit 4 from a HP 66xxB. */
549 s = g_variant_get_string(*data, NULL);
550 sr_atoi(s, &reg);
551 g_variant_unref(*data);
552 *data = g_variant_new_boolean(reg & (1 << 4));
553 }
554 }
555
556 return ret;
557}
558
559static int config_set(uint32_t key, GVariant *data,
560 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
561{
562 struct dev_context *devc;
563 double d;
564 int channel_group_cmd;
565 char *channel_group_name;
566 int ret;
567
568 if (!sdi)
569 return SR_ERR_ARG;
570
571 channel_group_cmd = 0;
572 channel_group_name = NULL;
573 if (cg) {
574 channel_group_cmd = SCPI_CMD_SELECT_CHANNEL;
575 channel_group_name = g_strdup(cg->name);
576 }
577
578 devc = sdi->priv;
579
580 switch (key) {
581 case SR_CONF_ENABLED:
582 if (g_variant_get_boolean(data))
583 ret = sr_scpi_cmd(sdi, devc->device->commands,
584 channel_group_cmd, channel_group_name,
585 SCPI_CMD_SET_OUTPUT_ENABLE);
586 else
587 ret = sr_scpi_cmd(sdi, devc->device->commands,
588 channel_group_cmd, channel_group_name,
589 SCPI_CMD_SET_OUTPUT_DISABLE);
590 break;
591 case SR_CONF_VOLTAGE_TARGET:
592 d = g_variant_get_double(data);
593 ret = sr_scpi_cmd(sdi, devc->device->commands,
594 channel_group_cmd, channel_group_name,
595 SCPI_CMD_SET_VOLTAGE_TARGET, d);
596 break;
597 case SR_CONF_OUTPUT_FREQUENCY_TARGET:
598 d = g_variant_get_double(data);
599 ret = sr_scpi_cmd(sdi, devc->device->commands,
600 channel_group_cmd, channel_group_name,
601 SCPI_CMD_SET_FREQUENCY_TARGET, d);
602 break;
603 case SR_CONF_CURRENT_LIMIT:
604 d = g_variant_get_double(data);
605 ret = sr_scpi_cmd(sdi, devc->device->commands,
606 channel_group_cmd, channel_group_name,
607 SCPI_CMD_SET_CURRENT_LIMIT, d);
608 break;
609 case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
610 if (g_variant_get_boolean(data))
611 ret = sr_scpi_cmd(sdi, devc->device->commands,
612 channel_group_cmd, channel_group_name,
613 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE);
614 else
615 ret = sr_scpi_cmd(sdi, devc->device->commands,
616 channel_group_cmd, channel_group_name,
617 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE);
618 break;
619 case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
620 d = g_variant_get_double(data);
621 ret = sr_scpi_cmd(sdi, devc->device->commands,
622 channel_group_cmd, channel_group_name,
623 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, d);
624 break;
625 case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
626 if (g_variant_get_boolean(data))
627 ret = sr_scpi_cmd(sdi, devc->device->commands,
628 channel_group_cmd, channel_group_name,
629 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE);
630 else
631 ret = sr_scpi_cmd(sdi, devc->device->commands,
632 channel_group_cmd, channel_group_name,
633 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE);
634 break;
635 case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
636 d = g_variant_get_double(data);
637 ret = sr_scpi_cmd(sdi, devc->device->commands,
638 channel_group_cmd, channel_group_name,
639 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD, d);
640 break;
641 case SR_CONF_OVER_TEMPERATURE_PROTECTION:
642 if (g_variant_get_boolean(data))
643 ret = sr_scpi_cmd(sdi, devc->device->commands,
644 channel_group_cmd, channel_group_name,
645 SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE);
646 else
647 ret = sr_scpi_cmd(sdi, devc->device->commands,
648 channel_group_cmd, channel_group_name,
649 SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE);
650 break;
651 default:
652 ret = sr_sw_limits_config_set(&devc->limits, key, data);
653 }
654
655 g_free(channel_group_name);
656
657 return ret;
658}
659
660static int config_list(uint32_t key, GVariant **data,
661 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
662{
663 struct dev_context *devc;
664 struct sr_channel *ch;
665 const struct channel_spec *ch_spec;
666 int i;
667 const char *s[16];
668
669 devc = (sdi) ? sdi->priv : NULL;
670
671 if (!cg) {
672 switch (key) {
673 case SR_CONF_SCAN_OPTIONS:
674 case SR_CONF_DEVICE_OPTIONS:
675 return std_opts_config_list(key, data, sdi, cg,
676 ARRAY_AND_SIZE(scanopts),
677 ARRAY_AND_SIZE(drvopts),
678 (devc && devc->device) ? devc->device->devopts : NULL,
679 (devc && devc->device) ? devc->device->num_devopts : 0);
680 break;
681 case SR_CONF_CHANNEL_CONFIG:
682 if (!devc || !devc->device)
683 return SR_ERR_ARG;
684 /* Not used. */
685 i = 0;
686 if (devc->device->features & PPS_INDEPENDENT)
687 s[i++] = "Independent";
688 if (devc->device->features & PPS_SERIES)
689 s[i++] = "Series";
690 if (devc->device->features & PPS_PARALLEL)
691 s[i++] = "Parallel";
692 if (i == 0) {
693 /*
694 * Shouldn't happen: independent-only devices
695 * shouldn't advertise this option at all.
696 */
697 return SR_ERR_NA;
698 }
699 *data = g_variant_new_strv(s, i);
700 break;
701 default:
702 return SR_ERR_NA;
703 }
704 } else {
705 /*
706 * Per-channel-group options depending on a channel are actually
707 * done with the first channel. Channel groups in PPS can have
708 * more than one channel, but they will typically be of equal
709 * specification for use in series or parallel mode.
710 */
711 ch = cg->channels->data;
712 if (!devc || !devc->device)
713 return SR_ERR_ARG;
714 ch_spec = &(devc->device->channels[ch->index]);
715
716 switch (key) {
717 case SR_CONF_DEVICE_OPTIONS:
718 *data = std_gvar_array_u32(devc->device->devopts_cg, devc->device->num_devopts_cg);
719 break;
720 case SR_CONF_VOLTAGE_TARGET:
721 *data = std_gvar_min_max_step_array(ch_spec->voltage);
722 break;
723 case SR_CONF_OUTPUT_FREQUENCY_TARGET:
724 *data = std_gvar_min_max_step_array(ch_spec->frequency);
725 break;
726 case SR_CONF_CURRENT_LIMIT:
727 *data = std_gvar_min_max_step_array(ch_spec->current);
728 break;
729 case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
730 *data = std_gvar_min_max_step_array(ch_spec->ovp);
731 break;
732 case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
733 *data = std_gvar_min_max_step_array(ch_spec->ocp);
734 break;
735 default:
736 return SR_ERR_NA;
737 }
738 }
739
740 return SR_OK;
741}
742
743static int dev_acquisition_start(const struct sr_dev_inst *sdi)
744{
745 struct dev_context *devc;
746 struct sr_scpi_dev_inst *scpi;
747 int ret;
748
749 devc = sdi->priv;
750 scpi = sdi->conn;
751
752 /* Prime the pipe with the first channel. */
753 devc->cur_acquisition_channel = sr_next_enabled_channel(sdi, NULL);
754
755 /* Device specific initialization before aquisition starts. */
756 if (devc->device->init_aquisition)
757 devc->device->init_aquisition(sdi);
758
759 if ((ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
760 scpi_pps_receive_data, (void *)sdi)) != SR_OK)
761 return ret;
762 std_session_send_df_header(sdi);
763 sr_sw_limits_acquisition_start(&devc->limits);
764
765 return SR_OK;
766}
767
768static int dev_acquisition_stop(struct sr_dev_inst *sdi)
769{
770 struct sr_scpi_dev_inst *scpi;
771
772 scpi = sdi->conn;
773
774 sr_scpi_source_remove(sdi->session, scpi);
775
776 std_session_send_df_end(sdi);
777
778 return SR_OK;
779}
780
781static struct sr_dev_driver scpi_pps_driver_info = {
782 .name = "scpi-pps",
783 .longname = "SCPI PPS",
784 .api_version = 1,
785 .init = std_init,
786 .cleanup = std_cleanup,
787 .scan = scan_scpi_pps,
788 .dev_list = std_dev_list,
789 .dev_clear = dev_clear,
790 .config_get = config_get,
791 .config_set = config_set,
792 .config_list = config_list,
793 .dev_open = dev_open,
794 .dev_close = dev_close,
795 .dev_acquisition_start = dev_acquisition_start,
796 .dev_acquisition_stop = dev_acquisition_stop,
797 .context = NULL,
798};
799
800static struct sr_dev_driver hp_ib_pps_driver_info = {
801 .name = "hpib-pps",
802 .longname = "HP-IB PPS",
803 .api_version = 1,
804 .init = std_init,
805 .cleanup = std_cleanup,
806 .scan = scan_hpib_pps,
807 .dev_list = std_dev_list,
808 .dev_clear = dev_clear,
809 .config_get = config_get,
810 .config_set = config_set,
811 .config_list = config_list,
812 .dev_open = dev_open,
813 .dev_close = dev_close,
814 .dev_acquisition_start = dev_acquisition_start,
815 .dev_acquisition_stop = dev_acquisition_stop,
816 .context = NULL,
817};
818SR_REGISTER_DEV_DRIVER(scpi_pps_driver_info);
819SR_REGISTER_DEV_DRIVER(hp_ib_pps_driver_info);
Hardware access and backend lib