src/hardware/scpi-pps/api.c

   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 <string.h>
  21 #include "protocol.h"
  22
  23 SR_PRIV struct sr_dev_driver scpi_pps_driver_info;
  24 static struct sr_dev_driver *di = &scpi_pps_driver_info;
  25 extern unsigned int num_pps_profiles;
  26 extern const struct scpi_pps pps_profiles[];
  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 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 };
  42
  43 static int init(struct sr_context *sr_ctx)
  44 {
  45         return std_init(sr_ctx, di, LOG_PREFIX);
  46 }
  47
  48 static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
  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 (sr_scpi_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 = get_vendor(hw_info->manufacturer);
  77                 if (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 = sr_dev_inst_new();
  93         sdi->status = SR_ST_ACTIVE;
  94         sdi->vendor = g_strdup(vendor);
  95         sdi->model = g_strdup(hw_info->model);
  96         sdi->version = g_strdup(hw_info->firmware_version);
  97         sdi->conn = scpi;
  98         sdi->driver = di;
  99         sdi->inst_type = SR_INST_SCPI;
 100         sdi->serial_num = g_strdup(hw_info->serial_number);
 101
 102         devc = g_malloc0(sizeof(struct dev_context));
 103         devc->device = device;
 104         sdi->priv = devc;
 105
 106         if (device->num_channels) {
 107                 /* Static channels and groups. */
 108                 channels = device->channels;
 109                 num_channels = device->num_channels;
 110                 channel_groups = 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 (!scpi_cmd_get(sdi, 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(ch_idx++, SR_CHANNEL_ANALOG, TRUE, ch_name);
 137                         pch = g_malloc0(sizeof(struct pps_channel));
 138                         pch->hw_output_idx = ch_num;
 139                         pch->hwname = channels[ch_num].name;
 140                         pch->mq = pci[i].mq;
 141                         ch->priv = pch;
 142                         sdi->channels = g_slist_append(sdi->channels, ch);
 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                                         if (pch->hw_output_idx == j)
 156                                                 cg->channels = g_slist_append(cg->channels, ch);
 157                                 }
 158                         }
 159                 }
 160                 pcg = g_malloc0(sizeof(struct pps_channel_group));
 161                 pcg->features = cgs->features;
 162                 cg->priv = pcg;
 163                 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
 164         }
 165
 166         sr_scpi_hw_info_free(hw_info);
 167         hw_info = NULL;
 168
 169         scpi_cmd(sdi, SCPI_CMD_LOCAL);
 170         sr_scpi_close(scpi);
 171
 172         return sdi;
 173 }
 174
 175 static GSList *scan(GSList *options)
 176 {
 177         return sr_scpi_scan(di->priv, options, probe_device);
 178 }
 179
 180 static GSList *dev_list(void)
 181 {
 182         return ((struct drv_context *)(di->priv))->instances;
 183 }
 184
 185 static int dev_clear(void)
 186 {
 187         return std_dev_clear(di, NULL);
 188 }
 189
 190 static int dev_open(struct sr_dev_inst *sdi)
 191 {
 192         struct dev_context *devc;
 193         struct sr_scpi_dev_inst *scpi;
 194         GVariant *beeper;
 195
 196         if (sdi->status != SR_ST_ACTIVE)
 197                 return SR_ERR;
 198
 199         scpi = sdi->conn;
 200         if (sr_scpi_open(scpi) < 0)
 201                 return SR_ERR;
 202
 203         sdi->status = SR_ST_ACTIVE;
 204
 205         scpi_cmd(sdi, SCPI_CMD_REMOTE);
 206         devc = sdi->priv;
 207         devc->beeper_was_set = FALSE;
 208         if (scpi_cmd_resp(sdi, &beeper, G_VARIANT_TYPE_BOOLEAN, SCPI_CMD_BEEPER) == SR_OK) {
 209                 if (g_variant_get_boolean(beeper)) {
 210                         devc->beeper_was_set = TRUE;
 211                         scpi_cmd(sdi, SCPI_CMD_BEEPER_DISABLE);
 212                 }
 213                 g_variant_unref(beeper);
 214         }
 215
 216         return SR_OK;
 217 }
 218
 219 static int dev_close(struct sr_dev_inst *sdi)
 220 {
 221         struct sr_scpi_dev_inst *scpi;
 222         struct dev_context *devc;
 223
 224         if (sdi->status != SR_ST_ACTIVE)
 225                 return SR_ERR_DEV_CLOSED;
 226
 227         devc = sdi->priv;
 228         scpi = sdi->conn;
 229         if (scpi) {
 230                 if (devc->beeper_was_set)
 231                         scpi_cmd(sdi, SCPI_CMD_BEEPER_ENABLE);
 232                 scpi_cmd(sdi, SCPI_CMD_LOCAL);
 233                 sr_scpi_close(scpi);
 234                 sdi->status = SR_ST_INACTIVE;
 235         }
 236
 237         return SR_OK;
 238 }
 239
 240 static void clear_helper(void *priv)
 241 {
 242         struct dev_context *devc;
 243
 244         devc = priv;
 245         g_free(devc->channels);
 246         g_free(devc->channel_groups);
 247         g_free(devc);
 248 }
 249
 250 static int cleanup(void)
 251 {
 252         return std_dev_clear(di, clear_helper);
 253 }
 254
 255 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 256                 const struct sr_channel_group *cg)
 257 {
 258         struct dev_context *devc;
 259         const GVariantType *gvtype;
 260         unsigned int i;
 261         int cmd, ret;
 262
 263         if (!sdi)
 264                 return SR_ERR_ARG;
 265
 266         devc = sdi->priv;
 267
 268         if (cg) {
 269                 /*
 270                  * These options only apply to channel groups with a single
 271                  * channel -- they're per-channel settings for the device.
 272                  */
 273
 274                 /*
 275                  * Config keys are handled below depending on whether a channel
 276                  * group was provided by the frontend. However some of these
 277                  * take a CG on one PPS but not on others. Check the device's
 278                  * profile for that here, and NULL out the channel group as needed.
 279                  */
 280                 for (i = 0; i < devc->device->num_devopts; i++) {
 281                         if (devc->device->devopts[i] == key) {
 282                                 cg = NULL;
 283                                 break;
 284                         }
 285                 }
 286         }
 287
 288         gvtype = NULL;
 289         cmd = -1;
 290         switch (key) {
 291         case SR_CONF_OUTPUT_ENABLED:
 292                 gvtype = G_VARIANT_TYPE_BOOLEAN;
 293                 cmd = SCPI_CMD_GET_OUTPUT_ENABLED;
 294                 break;
 295         case SR_CONF_OUTPUT_VOLTAGE:
 296                 gvtype = G_VARIANT_TYPE_DOUBLE;
 297                 cmd = SCPI_CMD_GET_MEAS_VOLTAGE;
 298                 break;
 299         case SR_CONF_OUTPUT_VOLTAGE_TARGET:
 300                 gvtype = G_VARIANT_TYPE_DOUBLE;
 301                 cmd = SCPI_CMD_GET_VOLTAGE_TARGET;
 302                 break;
 303         case SR_CONF_OUTPUT_CURRENT:
 304                 gvtype = G_VARIANT_TYPE_DOUBLE;
 305                 cmd = SCPI_CMD_GET_MEAS_CURRENT;
 306                 break;
 307         case SR_CONF_OUTPUT_CURRENT_LIMIT:
 308                 gvtype = G_VARIANT_TYPE_DOUBLE;
 309                 cmd = SCPI_CMD_GET_CURRENT_LIMIT;
 310                 break;
 311         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 312                 gvtype = G_VARIANT_TYPE_BOOLEAN;
 313                 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED;
 314                 break;
 315         case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
 316                 gvtype = G_VARIANT_TYPE_BOOLEAN;
 317                 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE;
 318                 break;
 319         case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
 320                 gvtype = G_VARIANT_TYPE_DOUBLE;
 321                 cmd = SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD;
 322                 break;
 323         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 324                 gvtype = G_VARIANT_TYPE_BOOLEAN;
 325                 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED;
 326                 break;
 327         case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
 328                 gvtype = G_VARIANT_TYPE_BOOLEAN;
 329                 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE;
 330                 break;
 331         case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
 332                 gvtype = G_VARIANT_TYPE_DOUBLE;
 333                 cmd = SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD;
 334                 break;
 335         case SR_CONF_OVER_TEMPERATURE_PROTECTION:
 336                 gvtype = G_VARIANT_TYPE_BOOLEAN;
 337                 cmd = SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION;
 338                 break;
 339         case SR_CONF_OUTPUT_REGULATION:
 340                 gvtype = G_VARIANT_TYPE_STRING;
 341                 cmd = SCPI_CMD_GET_OUTPUT_REGULATION;
 342         }
 343         if (gvtype) {
 344                 if (cg)
 345                         select_channel(sdi, cg->channels->data);
 346                 ret = scpi_cmd_resp(sdi, data, gvtype, cmd);
 347         } else
 348                 ret = SR_ERR_NA;
 349
 350         return ret;
 351 }
 352
 353 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 354                 const struct sr_channel_group *cg)
 355 {
 356         double d;
 357         int ret;
 358
 359         if (!sdi)
 360                 return SR_ERR_ARG;
 361
 362         if (sdi->status != SR_ST_ACTIVE)
 363                 return SR_ERR_DEV_CLOSED;
 364
 365         if (cg)
 366                 /* Channel group specified. */
 367                 select_channel(sdi, cg->channels->data);
 368
 369         ret = SR_OK;
 370         switch (key) {
 371         case SR_CONF_OUTPUT_ENABLED:
 372                 if (g_variant_get_boolean(data))
 373                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OUTPUT_ENABLE);
 374                 else
 375                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OUTPUT_DISABLE);
 376                 break;
 377         case SR_CONF_OUTPUT_VOLTAGE_TARGET:
 378                 d = g_variant_get_double(data);
 379                 ret = scpi_cmd(sdi, SCPI_CMD_SET_VOLTAGE_TARGET, d);
 380                 break;
 381         case SR_CONF_OUTPUT_CURRENT_LIMIT:
 382                 d = g_variant_get_double(data);
 383                 ret = scpi_cmd(sdi, SCPI_CMD_SET_CURRENT_LIMIT, d);
 384                 break;
 385         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 386                 if (g_variant_get_boolean(data))
 387                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE);
 388                 else
 389                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE);
 390                 break;
 391         case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
 392                 d = g_variant_get_double(data);
 393                 ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD, d);
 394                 break;
 395         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 396                 if (g_variant_get_boolean(data))
 397                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE);
 398                 else
 399                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE);
 400                 break;
 401         case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
 402                 d = g_variant_get_double(data);
 403                 ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD, d);
 404                 break;
 405         case SR_CONF_OVER_TEMPERATURE_PROTECTION:
 406                 if (g_variant_get_boolean(data))
 407                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE);
 408                 else
 409                         ret = scpi_cmd(sdi, SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE);
 410                 break;
 411         default:
 412                 ret = SR_ERR_NA;
 413         }
 414
 415         return ret;
 416 }
 417
 418 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 419                 const struct sr_channel_group *cg)
 420 {
 421         struct dev_context *devc;
 422         struct sr_channel *ch;
 423         struct channel_spec *ch_spec;
 424         GVariant *gvar;
 425         GVariantBuilder gvb;
 426         int ret, i;
 427         const char *s[16];
 428
 429         /* Always available, even without sdi. */
 430         if (key == SR_CONF_SCAN_OPTIONS) {
 431                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 432                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 433                 return SR_OK;
 434         } else if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
 435                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 436                                 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 437                 return SR_OK;
 438         }
 439
 440         if (!sdi)
 441                 return SR_ERR_ARG;
 442         devc = sdi->priv;
 443
 444         ret = SR_OK;
 445         if (!cg) {
 446                 /* No channel group: global options. */
 447                 switch (key) {
 448                 case SR_CONF_DEVICE_OPTIONS:
 449                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 450                                         devc->device->devopts, devc->device->num_devopts,
 451                                         sizeof(uint32_t));
 452                         break;
 453                 case SR_CONF_OUTPUT_CHANNEL_CONFIG:
 454                         /* Not used. */
 455                         i = 0;
 456                         if (devc->device->features & PPS_INDEPENDENT)
 457                                 s[i++] = "Independent";
 458                         if (devc->device->features & PPS_SERIES)
 459                                 s[i++] = "Series";
 460                         if (devc->device->features & PPS_PARALLEL)
 461                                 s[i++] = "Parallel";
 462                         if (i == 0) {
 463                                 /*
 464                                  * Shouldn't happen: independent-only devices
 465                                  * shouldn't advertise this option at all.
 466                                  */
 467                                 return SR_ERR_NA;
 468                         }
 469                         *data = g_variant_new_strv(s, i);
 470                         break;
 471                 default:
 472                         return SR_ERR_NA;
 473                 }
 474         } else {
 475                 /* Channel group specified. */
 476                 /*
 477                  * Per-channel-group options depending on a channel are actually
 478                  * done with the first channel. Channel groups in PPS can have
 479                  * more than one channel, but they will typically be of equal
 480                  * specification for use in series or parallel mode.
 481                  */
 482                 ch = cg->channels->data;
 483
 484                 switch (key) {
 485                 case SR_CONF_DEVICE_OPTIONS:
 486                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 487                                         devc->device->devopts_cg, devc->device->num_devopts_cg,
 488                                         sizeof(uint32_t));
 489                         break;
 490                 case SR_CONF_OUTPUT_VOLTAGE_TARGET:
 491                         ch_spec = &(devc->device->channels[ch->index]);
 492                         g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 493                         /* Min, max, write resolution. */
 494                         for (i = 0; i < 3; i++) {
 495                                 gvar = g_variant_new_double(ch_spec->voltage[i]);
 496                                 g_variant_builder_add_value(&gvb, gvar);
 497                         }
 498                         *data = g_variant_builder_end(&gvb);
 499                         break;
 500                 case SR_CONF_OUTPUT_CURRENT_LIMIT:
 501                         g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 502                         /* Min, max, step. */
 503                         for (i = 0; i < 3; i++) {
 504                                 ch_spec = &(devc->device->channels[ch->index]);
 505                                 gvar = g_variant_new_double(ch_spec->current[i]);
 506                                 g_variant_builder_add_value(&gvb, gvar);
 507                         }
 508                         *data = g_variant_builder_end(&gvb);
 509                         break;
 510                 default:
 511                         return SR_ERR_NA;
 512                 }
 513         }
 514
 515         return ret;
 516 }
 517
 518 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 519                 void *cb_data)
 520 {
 521         struct dev_context *devc;
 522         struct sr_scpi_dev_inst *scpi;
 523         struct sr_channel *ch;
 524         struct pps_channel *pch;
 525         int cmd, ret;
 526
 527         if (sdi->status != SR_ST_ACTIVE)
 528                 return SR_ERR_DEV_CLOSED;
 529
 530         devc = sdi->priv;
 531         scpi = sdi->conn;
 532         devc->cb_data = cb_data;
 533
 534         if ((ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
 535                         scpi_pps_receive_data, (void *)sdi)) != SR_OK)
 536                 return ret;
 537         std_session_send_df_header(sdi, LOG_PREFIX);
 538
 539         /* Prime the pipe with the first channel's fetch. */
 540         ch = next_enabled_channel(sdi, NULL);
 541         pch = ch->priv;
 542         if ((ret = select_channel(sdi, ch)) != SR_OK)
 543                 return ret;
 544         if (pch->mq == SR_MQ_VOLTAGE)
 545                 cmd = SCPI_CMD_GET_MEAS_VOLTAGE;
 546         else if (pch->mq == SR_MQ_CURRENT)
 547                 cmd = SCPI_CMD_GET_MEAS_CURRENT;
 548         else if (pch->mq == SR_MQ_POWER)
 549                 cmd = SCPI_CMD_GET_MEAS_POWER;
 550         else
 551                 return SR_ERR;
 552         scpi_cmd(sdi, cmd, pch->hwname);
 553
 554         return SR_OK;
 555 }
 556
 557 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 558 {
 559         struct sr_datafeed_packet packet;
 560         struct sr_scpi_dev_inst *scpi;
 561         float f;
 562
 563         (void)cb_data;
 564
 565         if (sdi->status != SR_ST_ACTIVE)
 566                 return SR_ERR_DEV_CLOSED;
 567
 568         scpi = sdi->conn;
 569
 570         /*
 571          * A requested value is certainly on the way. Retrieve it now,
 572          * to avoid leaving the device in a state where it's not expecting
 573          * commands.
 574          */
 575         sr_scpi_get_float(scpi, NULL, &f);
 576         sr_scpi_source_remove(sdi->session, scpi);
 577
 578         packet.type = SR_DF_END;
 579         sr_session_send(sdi, &packet);
 580
 581         return SR_OK;
 582 }
 583
 584 SR_PRIV struct sr_dev_driver scpi_pps_driver_info = {
 585         .name = "scpi-pps",
 586         .longname = "SCPI PPS",
 587         .api_version = 1,
 588         .init = init,
 589         .cleanup = cleanup,
 590         .scan = scan,
 591         .dev_list = dev_list,
 592         .dev_clear = dev_clear,
 593         .config_get = config_get,
 594         .config_set = config_set,
 595         .config_list = config_list,
 596         .dev_open = dev_open,
 597         .dev_close = dev_close,
 598         .dev_acquisition_start = dev_acquisition_start,
 599         .dev_acquisition_stop = dev_acquisition_stop,
 600         .priv = NULL,
 601 };