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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 | * | |
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 <config.h> | |
21 | #include <string.h> | |
22 | #include <strings.h> | |
23 | #include "scpi.h" | |
24 | #include "protocol.h" | |
25 | ||
26 | SR_PRIV struct sr_dev_driver scpi_pps_driver_info; | |
27 | ||
28 | static const uint32_t scanopts[] = { | |
29 | SR_CONF_CONN, | |
30 | SR_CONF_SERIALCOMM, | |
31 | }; | |
32 | ||
33 | static const uint32_t drvopts[] = { | |
34 | SR_CONF_POWER_SUPPLY, | |
35 | }; | |
36 | ||
37 | static const struct pps_channel_instance pci[] = { | |
38 | { SR_MQ_VOLTAGE, SCPI_CMD_GET_MEAS_VOLTAGE, "V" }, | |
39 | { SR_MQ_CURRENT, SCPI_CMD_GET_MEAS_CURRENT, "I" }, | |
40 | { SR_MQ_POWER, SCPI_CMD_GET_MEAS_POWER, "P" }, | |
41 | { SR_MQ_FREQUENCY, SCPI_CMD_GET_MEAS_FREQUENCY, "F" }, | |
42 | }; | |
43 | ||
44 | static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi) | |
45 | { | |
46 | struct dev_context *devc; | |
47 | struct sr_dev_inst *sdi; | |
48 | struct sr_scpi_hw_info *hw_info; | |
49 | struct sr_channel_group *cg; | |
50 | struct sr_channel *ch; | |
51 | const struct scpi_pps *device; | |
52 | struct pps_channel *pch; | |
53 | struct channel_spec *channels; | |
54 | struct channel_group_spec *channel_groups, *cgs; | |
55 | struct pps_channel_group *pcg; | |
56 | GRegex *model_re; | |
57 | GMatchInfo *model_mi; | |
58 | GSList *l; | |
59 | uint64_t mask; | |
60 | unsigned int num_channels, num_channel_groups, ch_num, ch_idx, i, j; | |
61 | int ret; | |
62 | const char *vendor; | |
63 | char ch_name[16]; | |
64 | ||
65 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { | |
66 | sr_info("Couldn't get IDN response."); | |
67 | return NULL; | |
68 | } | |
69 | ||
70 | device = NULL; | |
71 | for (i = 0; i < num_pps_profiles; i++) { | |
72 | vendor = sr_vendor_alias(hw_info->manufacturer); | |
73 | if (g_ascii_strcasecmp(vendor, pps_profiles[i].vendor)) | |
74 | continue; | |
75 | model_re = g_regex_new(pps_profiles[i].model, 0, 0, NULL); | |
76 | if (g_regex_match(model_re, hw_info->model, 0, &model_mi)) | |
77 | device = &pps_profiles[i]; | |
78 | g_match_info_unref(model_mi); | |
79 | g_regex_unref(model_re); | |
80 | if (device) | |
81 | break; | |
82 | } | |
83 | if (!device) { | |
84 | sr_scpi_hw_info_free(hw_info); | |
85 | return NULL; | |
86 | } | |
87 | ||
88 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
89 | sdi->vendor = g_strdup(vendor); | |
90 | sdi->model = g_strdup(hw_info->model); | |
91 | sdi->version = g_strdup(hw_info->firmware_version); | |
92 | sdi->conn = scpi; | |
93 | sdi->driver = &scpi_pps_driver_info; | |
94 | sdi->inst_type = SR_INST_SCPI; | |
95 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
96 | ||
97 | devc = g_malloc0(sizeof(struct dev_context)); | |
98 | devc->device = device; | |
99 | sdi->priv = devc; | |
100 | ||
101 | if (device->num_channels) { | |
102 | /* Static channels and groups. */ | |
103 | channels = (struct channel_spec *)device->channels; | |
104 | num_channels = device->num_channels; | |
105 | channel_groups = (struct channel_group_spec *)device->channel_groups; | |
106 | num_channel_groups = device->num_channel_groups; | |
107 | } else { | |
108 | /* Channels and groups need to be probed. */ | |
109 | ret = device->probe_channels(sdi, hw_info, &channels, &num_channels, | |
110 | &channel_groups, &num_channel_groups); | |
111 | if (ret != SR_OK) { | |
112 | sr_err("Failed to probe for channels."); | |
113 | return NULL; | |
114 | } | |
115 | /* | |
116 | * Since these were dynamically allocated, we'll need to free them | |
117 | * later. | |
118 | */ | |
119 | devc->channels = channels; | |
120 | devc->channel_groups = channel_groups; | |
121 | } | |
122 | ||
123 | ch_idx = 0; | |
124 | for (ch_num = 0; ch_num < num_channels; ch_num++) { | |
125 | /* Create one channel per measurable output unit. */ | |
126 | for (i = 0; i < ARRAY_SIZE(pci); i++) { | |
127 | if (!scpi_cmd_get(devc->device->commands, pci[i].command)) | |
128 | continue; | |
129 | g_snprintf(ch_name, 16, "%s%s", pci[i].prefix, | |
130 | channels[ch_num].name); | |
131 | ch = sr_channel_new(sdi, ch_idx++, SR_CHANNEL_ANALOG, TRUE, | |
132 | ch_name); | |
133 | pch = g_malloc0(sizeof(struct pps_channel)); | |
134 | pch->hw_output_idx = ch_num; | |
135 | pch->hwname = channels[ch_num].name; | |
136 | pch->mq = pci[i].mq; | |
137 | ch->priv = pch; | |
138 | } | |
139 | } | |
140 | ||
141 | for (i = 0; i < num_channel_groups; i++) { | |
142 | cgs = &channel_groups[i]; | |
143 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
144 | cg->name = g_strdup(cgs->name); | |
145 | for (j = 0, mask = 1; j < 64; j++, mask <<= 1) { | |
146 | if (cgs->channel_index_mask & mask) { | |
147 | for (l = sdi->channels; l; l = l->next) { | |
148 | ch = l->data; | |
149 | pch = ch->priv; | |
150 | if (pch->hw_output_idx == j) | |
151 | cg->channels = g_slist_append(cg->channels, ch); | |
152 | } | |
153 | } | |
154 | } | |
155 | pcg = g_malloc0(sizeof(struct pps_channel_group)); | |
156 | pcg->features = cgs->features; | |
157 | cg->priv = pcg; | |
158 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
159 | } | |
160 | ||
161 | sr_scpi_hw_info_free(hw_info); | |
162 | hw_info = NULL; | |
163 | ||
164 | scpi_cmd(sdi, devc->device->commands, SCPI_CMD_LOCAL); | |
165 | ||
166 | return sdi; | |
167 | } | |
168 | ||
169 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
170 | { | |
171 | return sr_scpi_scan(di->context, options, probe_device); | |
172 | } | |
173 | ||
174 | static int dev_open(struct sr_dev_inst *sdi) | |
175 | { | |
176 | struct dev_context *devc; | |
177 | struct sr_scpi_dev_inst *scpi; | |
178 | GVariant *beeper; | |
179 | ||
180 | if (sdi->status != SR_ST_INACTIVE) | |
181 | return SR_ERR; | |
182 | ||
183 | scpi = sdi->conn; | |
184 | if (sr_scpi_open(scpi) < 0) | |
185 | return SR_ERR; | |
186 | ||
187 | sdi->status = SR_ST_ACTIVE; | |
188 | ||
189 | devc = sdi->priv; | |
190 | scpi_cmd(sdi, devc->device->commands, SCPI_CMD_REMOTE); | |
191 | devc->beeper_was_set = FALSE; | |
192 | if (scpi_cmd_resp(sdi, devc->device->commands, &beeper, | |
193 | G_VARIANT_TYPE_BOOLEAN, SCPI_CMD_BEEPER) == SR_OK) { | |
194 | if (g_variant_get_boolean(beeper)) { | |
195 | devc->beeper_was_set = TRUE; | |
196 | scpi_cmd(sdi, devc->device->commands, SCPI_CMD_BEEPER_DISABLE); | |
197 | } | |
198 | g_variant_unref(beeper); | |
199 | } | |
200 | ||
201 | return SR_OK; | |
202 | } | |
203 | ||
204 | static int dev_close(struct sr_dev_inst *sdi) | |
205 | { | |
206 | struct sr_scpi_dev_inst *scpi; | |
207 | struct dev_context *devc; | |
208 | ||
209 | if (sdi->status != SR_ST_ACTIVE) | |
210 | return SR_ERR_DEV_CLOSED; | |
211 | ||
212 | devc = sdi->priv; | |
213 | scpi = sdi->conn; | |
214 | if (scpi) { | |
215 | if (devc->beeper_was_set) | |
216 | scpi_cmd(sdi, devc->device->commands, SCPI_CMD_BEEPER_ENABLE); | |
217 | scpi_cmd(sdi, devc->device->commands, SCPI_CMD_LOCAL); | |
218 | sr_scpi_close(scpi); | |
219 | sdi->status = SR_ST_INACTIVE; | |
220 | } | |
221 | ||
222 | return SR_OK; | |
223 | } | |
224 | ||
225 | static void clear_helper(void *priv) | |
226 | { | |
227 | struct dev_context *devc; | |
228 | ||
229 | devc = priv; | |
230 | g_free(devc->channels); | |
231 | g_free(devc->channel_groups); | |
232 | g_free(devc); | |
233 | } | |
234 | ||
235 | static int dev_clear(const struct sr_dev_driver *di) | |
236 | { | |
237 | return std_dev_clear(di, clear_helper); | |
238 | } | |
239 | ||
240 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
241 | const struct sr_channel_group *cg) | |
242 | { | |
243 | struct dev_context *devc; | |
244 | const GVariantType *gvtype; | |
245 | unsigned int i; | |
246 | int cmd, ret; | |
247 | const char *s; | |
248 | ||
249 | if (!sdi) | |
250 | return SR_ERR_ARG; | |
251 | ||
252 | devc = sdi->priv; | |
253 | ||
254 | if (cg) { | |
255 | /* | |
256 | * These options only apply to channel groups with a single | |
257 | * channel -- they're per-channel settings for the device. | |
258 | */ | |
259 | ||
260 | /* | |
261 | * Config keys are handled below depending on whether a channel | |
262 | * group was provided by the frontend. However some of these | |
263 | * take a CG on one PPS but not on others. Check the device's | |
264 | * profile for that here, and NULL out the channel group as needed. | |
265 | */ | |
266 | for (i = 0; i < devc->device->num_devopts; i++) { | |
267 | if (devc->device->devopts[i] == key) { | |
268 | cg = NULL; | |
269 | break; | |
270 | } | |
271 | } | |
272 | } | |
273 | ||
274 | gvtype = NULL; | |
275 | cmd = -1; | |
276 | switch (key) { | |
277 | case SR_CONF_ENABLED: | |
278 | gvtype = G_VARIANT_TYPE_BOOLEAN; | |
279 | cmd = SCPI_CMD_GET_OUTPUT_ENABLED; | |
280 | break; | |
281 | case SR_CONF_VOLTAGE: | |
282 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
283 | cmd = SCPI_CMD_GET_MEAS_VOLTAGE; | |
284 | break; | |
285 | case SR_CONF_VOLTAGE_TARGET: | |
286 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
287 | cmd = SCPI_CMD_GET_VOLTAGE_TARGET; | |
288 | break; | |
289 | case SR_CONF_OUTPUT_FREQUENCY: | |
290 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
291 | cmd = SCPI_CMD_GET_MEAS_FREQUENCY; | |
292 | break; | |
293 | case SR_CONF_OUTPUT_FREQUENCY_TARGET: | |
294 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
295 | cmd = SCPI_CMD_GET_FREQUENCY_TARGET; | |
296 | break; | |
297 | case SR_CONF_CURRENT: | |
298 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
299 | cmd = SCPI_CMD_GET_MEAS_CURRENT; | |
300 | break; | |
301 | case SR_CONF_CURRENT_LIMIT: | |
302 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
303 | cmd = SCPI_CMD_GET_CURRENT_LIMIT; | |
304 | break; | |
305 | case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED: | |
306 | gvtype = G_VARIANT_TYPE_BOOLEAN; | |
307 | cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED; | |
308 | break; | |
309 | case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE: | |
310 | gvtype = G_VARIANT_TYPE_BOOLEAN; | |
311 | cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE; | |
312 | break; | |
313 | case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD: | |
314 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
315 | cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD; | |
316 | break; | |
317 | case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED: | |
318 | gvtype = G_VARIANT_TYPE_BOOLEAN; | |
319 | cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED; | |
320 | break; | |
321 | case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE: | |
322 | gvtype = G_VARIANT_TYPE_BOOLEAN; | |
323 | cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE; | |
324 | break; | |
325 | case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD: | |
326 | gvtype = G_VARIANT_TYPE_DOUBLE; | |
327 | cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD; | |
328 | break; | |
329 | case SR_CONF_OVER_TEMPERATURE_PROTECTION: | |
330 | gvtype = G_VARIANT_TYPE_BOOLEAN; | |
331 | cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION; | |
332 | break; | |
333 | case SR_CONF_REGULATION: | |
334 | gvtype = G_VARIANT_TYPE_STRING; | |
335 | cmd = SCPI_CMD_GET_OUTPUT_REGULATION; | |
336 | } | |
337 | if (!gvtype) | |
338 | return SR_ERR_NA; | |
339 | ||
340 | if (cg) | |
341 | select_channel(sdi, cg->channels->data); | |
342 | ret = scpi_cmd_resp(sdi, devc->device->commands, data, gvtype, cmd); | |
343 | ||
344 | if (cmd == SCPI_CMD_GET_OUTPUT_REGULATION) { | |
345 | /* | |
346 | * The Rigol DP800 series return CV/CC/UR, Philips PM2800 | |
347 | * return VOLT/CURR. We always return a GVariant string in | |
348 | * the Rigol notation. | |
349 | */ | |
350 | s = g_variant_get_string(*data, NULL); | |
351 | if (!strcmp(s, "VOLT")) { | |
352 | g_variant_unref(*data); | |
353 | *data = g_variant_new_string("CV"); | |
354 | } else if (!strcmp(s, "CURR")) { | |
355 | g_variant_unref(*data); | |
356 | *data = g_variant_new_string("CC"); | |
357 | } | |
358 | ||
359 | s = g_variant_get_string(*data, NULL); | |
360 | if (strcmp(s, "CV") && strcmp(s, "CC") && strcmp(s, "UR")) { | |
361 | sr_dbg("Unknown response to SCPI_CMD_GET_OUTPUT_REGULATION: %s", s); | |
362 | ret = SR_ERR_DATA; | |
363 | } | |
364 | } | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
370 | const struct sr_channel_group *cg) | |
371 | { | |
372 | struct dev_context *devc; | |
373 | double d; | |
374 | int ret; | |
375 | ||
376 | if (!sdi) | |
377 | return SR_ERR_ARG; | |
378 | ||
379 | if (sdi->status != SR_ST_ACTIVE) | |
380 | return SR_ERR_DEV_CLOSED; | |
381 | ||
382 | if (cg) | |
383 | /* Channel group specified. */ | |
384 | select_channel(sdi, cg->channels->data); | |
385 | ||
386 | devc = sdi->priv; | |
387 | ||
388 | switch (key) { | |
389 | case SR_CONF_ENABLED: | |
390 | if (g_variant_get_boolean(data)) | |
391 | ret = scpi_cmd(sdi, devc->device->commands, | |
392 | SCPI_CMD_SET_OUTPUT_ENABLE); | |
393 | else | |
394 | ret = scpi_cmd(sdi, devc->device->commands, | |
395 | SCPI_CMD_SET_OUTPUT_DISABLE); | |
396 | break; | |
397 | case SR_CONF_VOLTAGE_TARGET: | |
398 | d = g_variant_get_double(data); | |
399 | ret = scpi_cmd(sdi, devc->device->commands, | |
400 | SCPI_CMD_SET_VOLTAGE_TARGET, d); | |
401 | break; | |
402 | case SR_CONF_OUTPUT_FREQUENCY_TARGET: | |
403 | d = g_variant_get_double(data); | |
404 | ret = scpi_cmd(sdi, devc->device->commands, | |
405 | SCPI_CMD_SET_FREQUENCY_TARGET, d); | |
406 | break; | |
407 | case SR_CONF_CURRENT_LIMIT: | |
408 | d = g_variant_get_double(data); | |
409 | ret = scpi_cmd(sdi, devc->device->commands, | |
410 | SCPI_CMD_SET_CURRENT_LIMIT, d); | |
411 | break; | |
412 | case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED: | |
413 | if (g_variant_get_boolean(data)) | |
414 | ret = scpi_cmd(sdi, devc->device->commands, | |
415 | SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE); | |
416 | else | |
417 | ret = scpi_cmd(sdi, devc->device->commands, | |
418 | SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE); | |
419 | break; | |
420 | case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD: | |
421 | d = g_variant_get_double(data); | |
422 | ret = scpi_cmd(sdi, devc->device->commands, | |
423 | SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, d); | |
424 | break; | |
425 | case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED: | |
426 | if (g_variant_get_boolean(data)) | |
427 | ret = scpi_cmd(sdi, devc->device->commands, | |
428 | SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE); | |
429 | else | |
430 | ret = scpi_cmd(sdi, devc->device->commands, | |
431 | SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE); | |
432 | break; | |
433 | case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD: | |
434 | d = g_variant_get_double(data); | |
435 | ret = scpi_cmd(sdi, devc->device->commands, | |
436 | SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD, d); | |
437 | break; | |
438 | case SR_CONF_OVER_TEMPERATURE_PROTECTION: | |
439 | if (g_variant_get_boolean(data)) | |
440 | ret = scpi_cmd(sdi, devc->device->commands, | |
441 | SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE); | |
442 | else | |
443 | ret = scpi_cmd(sdi, devc->device->commands, | |
444 | SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE); | |
445 | break; | |
446 | default: | |
447 | ret = SR_ERR_NA; | |
448 | } | |
449 | ||
450 | return ret; | |
451 | } | |
452 | ||
453 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
454 | const struct sr_channel_group *cg) | |
455 | { | |
456 | struct dev_context *devc; | |
457 | struct sr_channel *ch; | |
458 | const struct channel_spec *ch_spec; | |
459 | GVariant *gvar; | |
460 | GVariantBuilder gvb; | |
461 | int ret, i; | |
462 | const char *s[16]; | |
463 | ||
464 | /* Always available, even without sdi. */ | |
465 | if (key == SR_CONF_SCAN_OPTIONS) { | |
466 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
467 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
468 | return SR_OK; | |
469 | } else if (key == SR_CONF_DEVICE_OPTIONS && !sdi) { | |
470 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
471 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
472 | return SR_OK; | |
473 | } | |
474 | ||
475 | if (!sdi) | |
476 | return SR_ERR_ARG; | |
477 | devc = sdi->priv; | |
478 | ||
479 | ret = SR_OK; | |
480 | if (!cg) { | |
481 | /* No channel group: global options. */ | |
482 | switch (key) { | |
483 | case SR_CONF_DEVICE_OPTIONS: | |
484 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
485 | devc->device->devopts, devc->device->num_devopts, | |
486 | sizeof(uint32_t)); | |
487 | break; | |
488 | case SR_CONF_CHANNEL_CONFIG: | |
489 | /* Not used. */ | |
490 | i = 0; | |
491 | if (devc->device->features & PPS_INDEPENDENT) | |
492 | s[i++] = "Independent"; | |
493 | if (devc->device->features & PPS_SERIES) | |
494 | s[i++] = "Series"; | |
495 | if (devc->device->features & PPS_PARALLEL) | |
496 | s[i++] = "Parallel"; | |
497 | if (i == 0) { | |
498 | /* | |
499 | * Shouldn't happen: independent-only devices | |
500 | * shouldn't advertise this option at all. | |
501 | */ | |
502 | return SR_ERR_NA; | |
503 | } | |
504 | *data = g_variant_new_strv(s, i); | |
505 | break; | |
506 | default: | |
507 | return SR_ERR_NA; | |
508 | } | |
509 | } else { | |
510 | /* Channel group specified. */ | |
511 | /* | |
512 | * Per-channel-group options depending on a channel are actually | |
513 | * done with the first channel. Channel groups in PPS can have | |
514 | * more than one channel, but they will typically be of equal | |
515 | * specification for use in series or parallel mode. | |
516 | */ | |
517 | ch = cg->channels->data; | |
518 | ||
519 | switch (key) { | |
520 | case SR_CONF_DEVICE_OPTIONS: | |
521 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
522 | devc->device->devopts_cg, devc->device->num_devopts_cg, | |
523 | sizeof(uint32_t)); | |
524 | break; | |
525 | case SR_CONF_VOLTAGE_TARGET: | |
526 | ch_spec = &(devc->device->channels[ch->index]); | |
527 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
528 | /* Min, max, write resolution. */ | |
529 | for (i = 0; i < 3; i++) { | |
530 | gvar = g_variant_new_double(ch_spec->voltage[i]); | |
531 | g_variant_builder_add_value(&gvb, gvar); | |
532 | } | |
533 | *data = g_variant_builder_end(&gvb); | |
534 | break; | |
535 | case SR_CONF_OUTPUT_FREQUENCY_TARGET: | |
536 | ch_spec = &(devc->device->channels[ch->index]); | |
537 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
538 | /* Min, max, write resolution. */ | |
539 | for (i = 0; i < 3; i++) { | |
540 | gvar = g_variant_new_double(ch_spec->frequency[i]); | |
541 | g_variant_builder_add_value(&gvb, gvar); | |
542 | } | |
543 | *data = g_variant_builder_end(&gvb); | |
544 | break; | |
545 | case SR_CONF_CURRENT_LIMIT: | |
546 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
547 | /* Min, max, step. */ | |
548 | for (i = 0; i < 3; i++) { | |
549 | ch_spec = &(devc->device->channels[ch->index]); | |
550 | gvar = g_variant_new_double(ch_spec->current[i]); | |
551 | g_variant_builder_add_value(&gvb, gvar); | |
552 | } | |
553 | *data = g_variant_builder_end(&gvb); | |
554 | break; | |
555 | default: | |
556 | return SR_ERR_NA; | |
557 | } | |
558 | } | |
559 | ||
560 | return ret; | |
561 | } | |
562 | ||
563 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
564 | { | |
565 | struct dev_context *devc; | |
566 | struct sr_scpi_dev_inst *scpi; | |
567 | struct sr_channel *ch; | |
568 | struct pps_channel *pch; | |
569 | int cmd, ret; | |
570 | ||
571 | if (sdi->status != SR_ST_ACTIVE) | |
572 | return SR_ERR_DEV_CLOSED; | |
573 | ||
574 | devc = sdi->priv; | |
575 | scpi = sdi->conn; | |
576 | ||
577 | if ((ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10, | |
578 | scpi_pps_receive_data, (void *)sdi)) != SR_OK) | |
579 | return ret; | |
580 | std_session_send_df_header(sdi, LOG_PREFIX); | |
581 | ||
582 | /* Prime the pipe with the first channel's fetch. */ | |
583 | ch = sr_next_enabled_channel(sdi, NULL); | |
584 | pch = ch->priv; | |
585 | if ((ret = select_channel(sdi, ch)) < 0) | |
586 | return ret; | |
587 | if (pch->mq == SR_MQ_VOLTAGE) | |
588 | cmd = SCPI_CMD_GET_MEAS_VOLTAGE; | |
589 | else if (pch->mq == SR_MQ_FREQUENCY) | |
590 | cmd = SCPI_CMD_GET_MEAS_FREQUENCY; | |
591 | else if (pch->mq == SR_MQ_CURRENT) | |
592 | cmd = SCPI_CMD_GET_MEAS_CURRENT; | |
593 | else if (pch->mq == SR_MQ_POWER) | |
594 | cmd = SCPI_CMD_GET_MEAS_POWER; | |
595 | else | |
596 | return SR_ERR; | |
597 | scpi_cmd(sdi, devc->device->commands, cmd, pch->hwname); | |
598 | ||
599 | return SR_OK; | |
600 | } | |
601 | ||
602 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
603 | { | |
604 | struct sr_scpi_dev_inst *scpi; | |
605 | float f; | |
606 | ||
607 | if (sdi->status != SR_ST_ACTIVE) | |
608 | return SR_ERR_DEV_CLOSED; | |
609 | ||
610 | scpi = sdi->conn; | |
611 | ||
612 | /* | |
613 | * A requested value is certainly on the way. Retrieve it now, | |
614 | * to avoid leaving the device in a state where it's not expecting | |
615 | * commands. | |
616 | */ | |
617 | sr_scpi_get_float(scpi, NULL, &f); | |
618 | sr_scpi_source_remove(sdi->session, scpi); | |
619 | ||
620 | std_session_send_df_end(sdi, LOG_PREFIX); | |
621 | ||
622 | return SR_OK; | |
623 | } | |
624 | ||
625 | SR_PRIV struct sr_dev_driver scpi_pps_driver_info = { | |
626 | .name = "scpi-pps", | |
627 | .longname = "SCPI PPS", | |
628 | .api_version = 1, | |
629 | .init = std_init, | |
630 | .cleanup = std_cleanup, | |
631 | .scan = scan, | |
632 | .dev_list = std_dev_list, | |
633 | .dev_clear = dev_clear, | |
634 | .config_get = config_get, | |
635 | .config_set = config_set, | |
636 | .config_list = config_list, | |
637 | .dev_open = dev_open, | |
638 | .dev_close = dev_close, | |
639 | .dev_acquisition_start = dev_acquisition_start, | |
640 | .dev_acquisition_stop = dev_acquisition_stop, | |
641 | .context = NULL, | |
642 | }; |