src/hardware/siglent-sds/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2018 mhooijboer <marchelh@gmail.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 <fcntl.h>
  22 #include <glib.h>
  23 #include <math.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <strings.h>
  27 #include <unistd.h>
  28 #include <libsigrok/libsigrok.h>
  29 #include "libsigrok-internal.h"
  30 #include "protocol.h"
  31 #include "scpi.h"
  32
  33 static const uint32_t scanopts[] = {
  34         SR_CONF_CONN,
  35         SR_CONF_SERIALCOMM,
  36 };
  37
  38 static const uint32_t drvopts[] = {
  39         SR_CONF_OSCILLOSCOPE,
  40         SR_CONF_LOGIC_ANALYZER,
  41 };
  42
  43 static const uint32_t devopts[] = {
  44         SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  45         SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  46         SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  47         SR_CONF_TRIGGER_LEVEL | SR_CONF_GET | SR_CONF_SET,
  48         SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
  49         SR_CONF_NUM_HDIV | SR_CONF_GET | SR_CONF_LIST,
  50         SR_CONF_SAMPLERATE | SR_CONF_GET,
  51         SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET,
  52         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  53         SR_CONF_AVERAGING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  54         SR_CONF_AVG_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  55 };
  56
  57 static const uint32_t devopts_cg_analog[] = {
  58         SR_CONF_NUM_VDIV | SR_CONF_GET,
  59         SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  60         SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  61         SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  62         SR_CONF_PROBE_FACTOR | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  63         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  64 };
  65
  66 static const uint64_t timebases[][2] = {
  67         /* nanoseconds */
  68         { 1, 1000000000 },
  69         { 2, 1000000000 },
  70         { 5, 1000000000 },
  71         { 10, 1000000000 },
  72         { 20, 1000000000 },
  73         { 50, 1000000000 },
  74         { 100, 1000000000 },
  75         { 200, 1000000000 },
  76         { 500, 1000000000 },
  77         /* microseconds */
  78         { 1, 1000000 },
  79         { 2, 1000000 },
  80         { 5, 1000000 },
  81         { 10, 1000000 },
  82         { 20, 1000000 },
  83         { 50, 1000000 },
  84         { 100, 1000000 },
  85         { 200, 1000000 },
  86         { 500, 1000000 },
  87         /* milliseconds */
  88         { 1, 1000 },
  89         { 2, 1000 },
  90         { 5, 1000 },
  91         { 10, 1000 },
  92         { 20, 1000 },
  93         { 50, 1000 },
  94         { 100, 1000 },
  95         { 200, 1000 },
  96         { 500, 1000 },
  97         /* seconds */
  98         { 1, 1 },
  99         { 2, 1 },
 100         { 5, 1 },
 101         { 10, 1 },
 102         { 20, 1 },
 103         { 50, 1 },
 104         { 100, 1 },
 105 };
 106
 107 static const uint64_t vdivs[][2] = {
 108         /* microvolts */
 109         { 500, 100000 },
 110         /* millivolts */
 111         { 1, 1000 },
 112         { 2, 1000 },
 113         { 5, 1000 },
 114         { 10, 1000 },
 115         { 20, 1000 },
 116         { 50, 1000 },
 117         { 100, 1000 },
 118         { 200, 1000 },
 119         { 500, 1000 },
 120         /* volts */
 121         { 1, 1 },
 122         { 2, 1 },
 123         { 5, 1 },
 124         { 10, 1 },
 125         { 20, 1 },
 126         { 50, 1 },
 127         { 100, 1 },
 128 };
 129
 130 static const char *trigger_sources[] = {
 131         "CH1", "CH2", "Ext", "Ext /5", "AC Line",
 132         "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
 133         "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
 134 };
 135
 136 static const char *trigger_slopes[] = {
 137         "r", "f",
 138 };
 139
 140 static const char *coupling[] = {
 141         "A1M AC 1 Meg",
 142         "A50 AC 50 Ohm",
 143         "D1M DC 1 Meg",
 144         "D50 DC 50 Ohm",
 145         "GND",
 146 };
 147
 148 static const uint64_t probe_factor[] = {
 149         1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000,
 150 };
 151
 152 /* Do not change the order of entries. */
 153 static const char *data_sources[] = {
 154         "Display",
 155         "History",
 156 };
 157
 158 enum vendor {
 159         SIGLENT,
 160 };
 161
 162 enum series {
 163         SDS1000CML,
 164         SDS1000CNL,
 165         SDS1000DL,
 166         SDS1000X,
 167         SDS1000XP,
 168         SDS1000XE,
 169         SDS2000X,
 170 };
 171
 172 /* short name, full name */
 173 static const struct siglent_sds_vendor supported_vendors[] = {
 174         [SIGLENT] = {"Siglent", "Siglent Technologies"},
 175 };
 176
 177 #define VENDOR(x) &supported_vendors[x]
 178 /* vendor, series, protocol, max timebase, min vdiv, number of horizontal divs,
 179  * number of vertical divs, live waveform samples, memory buffer samples */
 180 static const struct siglent_sds_series supported_series[] = {
 181         [SDS1000CML] = {VENDOR(SIGLENT), "SDS1000CML", NON_SPO_MODEL,
 182                 { 50, 1 }, { 2, 1000 }, 18, 8, 1400363},
 183         [SDS1000CNL] = {VENDOR(SIGLENT), "SDS1000CNL", NON_SPO_MODEL,
 184                 { 50, 1 }, { 2, 1000 }, 18, 8, 1400363},
 185         [SDS1000DL] = {VENDOR(SIGLENT), "SDS1000DL", NON_SPO_MODEL,
 186                 { 50, 1 }, { 2, 1000 }, 18, 8, 1400363},
 187         [SDS1000X] = {VENDOR(SIGLENT), "SDS1000X", SPO_MODEL,
 188                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 189         [SDS1000XP] = {VENDOR(SIGLENT), "SDS1000X+", SPO_MODEL,
 190                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 191         [SDS1000XE] = {VENDOR(SIGLENT), "SDS1000XE", SPO_MODEL,
 192                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 193         [SDS2000X] = {VENDOR(SIGLENT), "SDS2000X", SPO_MODEL,
 194                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 195 };
 196
 197 #define SERIES(x) &supported_series[x]
 198 /* series, model, min timebase, analog channels, digital */
 199 static const struct siglent_sds_model supported_models[] = {
 200         { SERIES(SDS1000CML), "SDS1152CML", { 20, 1000000000 }, 2, false, 0 },
 201         { SERIES(SDS1000CML), "SDS1102CML", { 10, 1000000000 }, 2, false, 0 },
 202         { SERIES(SDS1000CML), "SDS1072CML", { 5, 1000000000 }, 2, false, 0 },
 203         { SERIES(SDS1000CNL), "SDS1202CNL", { 20, 1000000000 }, 2, false, 0 },
 204         { SERIES(SDS1000CNL), "SDS1102CNL", { 10, 1000000000 }, 2, false, 0 },
 205         { SERIES(SDS1000CNL), "SDS1072CNL", { 5, 1000000000 }, 2, false, 0 },
 206         { SERIES(SDS1000DL), "SDS1202DL", { 20, 1000000000 }, 2, false, 0 },
 207         { SERIES(SDS1000DL), "SDS1102DL", { 10, 1000000000 }, 2, false, 0 },
 208         { SERIES(SDS1000DL), "SDS1022DL", { 5, 1000000000 }, 2, false, 0 },
 209         { SERIES(SDS1000DL), "SDS1052DL", { 5, 1000000000 }, 2, false, 0 },
 210         { SERIES(SDS1000DL), "SDS1052DL+", { 5, 1000000000 }, 2, false, 0 },
 211         { SERIES(SDS1000X), "SDS1102X", { 2, 1000000000 }, 2, false, 0 },
 212         { SERIES(SDS1000XP), "SDS1102X+", { 2, 1000000000 }, 2, false, 0 },
 213         { SERIES(SDS1000X), "SDS1202X", { 2, 1000000000 }, 2, false, 0 },
 214         { SERIES(SDS1000XP), "SDS1202X+", { 2, 1000000000 }, 2, false, 0 },
 215         { SERIES(SDS1000XE), "SDS1202X-E", { 1, 1000000000 }, 2, false, 0 },
 216         { SERIES(SDS1000XE), "SDS1104X-E", { 1, 1000000000 }, 4, true, 16 },
 217         { SERIES(SDS1000XE), "SDS1204X-E", { 1, 1000000000 }, 4, true, 16 },
 218         { SERIES(SDS2000X), "SDS2072X", { 2, 1000000000 }, 2, false, 0 },
 219         { SERIES(SDS2000X), "SDS2074X", { 2, 1000000000 }, 4, false, 0 },
 220         { SERIES(SDS2000X), "SDS2102X", { 2, 1000000000 }, 2, false, 0 },
 221         { SERIES(SDS2000X), "SDS2104X", { 2, 1000000000 }, 4, false, 0 },
 222         { SERIES(SDS2000X), "SDS2202X", { 2, 1000000000 }, 2, false, 0 },
 223         { SERIES(SDS2000X), "SDS2204X", { 2, 1000000000 }, 4, false, 0 },
 224         { SERIES(SDS2000X), "SDS2302X", { 2, 1000000000 }, 2, false, 0 },
 225         { SERIES(SDS2000X), "SDS2304X", { 2, 1000000000 }, 4, false, 0 },
 226 };
 227
 228 SR_PRIV struct sr_dev_driver siglent_sds_driver_info;
 229
 230 static void clear_helper(void *priv)
 231 {
 232         struct dev_context *devc;
 233
 234         devc = priv;
 235         if (!devc)
 236                 return;
 237         g_free(devc->analog_groups);
 238         g_free(devc->enabled_channels);
 239 }
 240
 241 static int dev_clear(const struct sr_dev_driver *di)
 242 {
 243         return std_dev_clear_with_callback(di, clear_helper);
 244 }
 245
 246 static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 247 {
 248         struct dev_context *devc;
 249         struct sr_dev_inst *sdi;
 250         struct sr_scpi_hw_info *hw_info;
 251         struct sr_channel *ch;
 252         unsigned int i;
 253         const struct siglent_sds_model *model;
 254         gchar *channel_name;
 255
 256         sr_dbg("Setting Communication Headers to off.");
 257         if (sr_scpi_send(scpi, "CHDR OFF") != SR_OK)
 258                 return NULL;
 259
 260         if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
 261                 sr_info("Couldn't get IDN response, retrying.");
 262                 sr_scpi_close(scpi);
 263                 sr_scpi_open(scpi);
 264                 if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
 265                         sr_info("Couldn't get IDN response.");
 266                         return NULL;
 267                 }
 268         }
 269
 270         model = NULL;
 271         for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
 272                 if (!strcmp(hw_info->model, supported_models[i].name)) {
 273                         model = &supported_models[i];
 274                         break;
 275                 }
 276         }
 277
 278         if (!model) {
 279                 sr_scpi_hw_info_free(hw_info);
 280                 return NULL;
 281         }
 282
 283         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 284         sdi->vendor = g_strdup(model->series->vendor->name);
 285         sdi->model = g_strdup(model->name);
 286         sdi->version = g_strdup(hw_info->firmware_version);
 287         sdi->conn = scpi;
 288         sdi->driver = &siglent_sds_driver_info;
 289         sdi->inst_type = SR_INST_SCPI;
 290         sdi->serial_num = g_strdup(hw_info->serial_number);
 291         devc = g_malloc0(sizeof(struct dev_context));
 292         devc->limit_frames = 1;
 293         devc->model = model;
 294
 295         sr_scpi_hw_info_free(hw_info);
 296
 297         devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group *) *
 298                 model->analog_channels);
 299
 300         for (i = 0; i < model->analog_channels; i++) {
 301                 channel_name = g_strdup_printf("CH%d", i + 1);
 302                 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_name);
 303
 304                 devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
 305
 306                 devc->analog_groups[i]->name = channel_name;
 307                 devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
 308                 sdi->channel_groups = g_slist_append(sdi->channel_groups,
 309                         devc->analog_groups[i]);
 310         }
 311
 312         if (devc->model->has_digital) {
 313                 devc->digital_group = g_malloc0(sizeof(struct sr_channel_group));
 314
 315                 for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) {
 316                         channel_name = g_strdup_printf("D%d", i);
 317                         ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
 318                         g_free(channel_name);
 319                         devc->digital_group->channels = g_slist_append(
 320                                 devc->digital_group->channels, ch);
 321                 }
 322                 devc->digital_group->name = g_strdup("LA");
 323                 sdi->channel_groups = g_slist_append(sdi->channel_groups,
 324                         devc->digital_group);
 325         }
 326
 327         for (i = 0; i < ARRAY_SIZE(timebases); i++) {
 328                 if (!memcmp(&devc->model->min_timebase, &timebases[i], sizeof(uint64_t[2])))
 329                         devc->timebases = &timebases[i];
 330
 331                 if (!memcmp(&devc->model->series->max_timebase, &timebases[i], sizeof(uint64_t[2])))
 332                         devc->num_timebases = &timebases[i] - devc->timebases + 1;
 333         }
 334
 335         for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
 336                 devc->vdivs = &vdivs[i];
 337                 if (!memcmp(&devc->model->series->min_vdiv,
 338                         &vdivs[i], sizeof(uint64_t[2]))) {
 339                         devc->vdivs = &vdivs[i];
 340                         devc->num_vdivs = ARRAY_SIZE(vdivs) - i;
 341                         break;
 342                 }
 343         }
 344
 345         devc->buffer = g_malloc(devc->model->series->buffer_samples);
 346         sr_dbg("Setting device context buffer size: %i.", devc->model->series->buffer_samples);
 347         devc->data = g_malloc(devc->model->series->buffer_samples * sizeof(float));
 348
 349         devc->data_source = DATA_SOURCE_SCREEN;
 350
 351         sdi->priv = devc;
 352
 353         return sdi;
 354 }
 355
 356 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 357 {
 358         /* TODO: Implement RPC call for LXI device discovery. */
 359         return sr_scpi_scan(di->context, options, probe_device);
 360 }
 361
 362 static int dev_open(struct sr_dev_inst *sdi)
 363 {
 364         int ret;
 365         struct sr_scpi_dev_inst *scpi = sdi->conn;
 366
 367         if ((ret = sr_scpi_open(scpi)) < 0) {
 368                 sr_err("Failed to open SCPI device: %s.", sr_strerror(ret));
 369                 return SR_ERR;
 370         }
 371
 372         if ((ret = siglent_sds_get_dev_cfg(sdi)) < 0) {
 373                 sr_err("Failed to get device config: %s.", sr_strerror(ret));
 374                 return SR_ERR;
 375         }
 376
 377         return SR_OK;
 378 }
 379
 380 static int dev_close(struct sr_dev_inst *sdi)
 381 {
 382         return sr_scpi_close(sdi->conn);
 383 }
 384
 385 static int config_get(uint32_t key, GVariant **data,
 386         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 387 {
 388         struct dev_context *devc;
 389         struct sr_channel *ch;
 390         const char *tmp_str;
 391         int analog_channel = -1;
 392         float smallest_diff = INFINITY;
 393         int idx = -1;
 394         unsigned i;
 395
 396         if (!sdi)
 397                 return SR_ERR_ARG;
 398
 399         devc = sdi->priv;
 400
 401         /* If a channel group is specified, it must be a valid one. */
 402         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 403                 sr_err("Invalid channel group specified.");
 404                 return SR_ERR;
 405         }
 406
 407         if (cg) {
 408                 ch = g_slist_nth_data(cg->channels, 0);
 409                 if (!ch)
 410                         return SR_ERR;
 411                 if (ch->type == SR_CHANNEL_ANALOG) {
 412                         if (ch->name[2] < '1' || ch->name[2] > '4')
 413                                 return SR_ERR;
 414                         analog_channel = ch->name[2] - '1';
 415                 }
 416         }
 417
 418         switch (key) {
 419         case SR_CONF_NUM_HDIV:
 420                 *data = g_variant_new_int32(devc->model->series->num_horizontal_divs);
 421                 break;
 422         case SR_CONF_NUM_VDIV:
 423                 *data = g_variant_new_int32(devc->num_vdivs);
 424                 break;
 425         case SR_CONF_LIMIT_FRAMES:
 426                 *data = g_variant_new_uint64(devc->limit_frames);
 427                 break;
 428         case SR_CONF_DATA_SOURCE:
 429                 if (devc->data_source == DATA_SOURCE_SCREEN)
 430                         *data = g_variant_new_string("Screen");
 431                 else if (devc->data_source == DATA_SOURCE_HISTORY)
 432                         *data = g_variant_new_string("History");
 433                 break;
 434         case SR_CONF_SAMPLERATE:
 435                 siglent_sds_get_dev_cfg_horizontal(sdi);
 436                 *data = g_variant_new_uint64(devc->samplerate);
 437                 break;
 438         case SR_CONF_TRIGGER_SOURCE:
 439                 if (!strcmp(devc->trigger_source, "ACL"))
 440                         tmp_str = "AC Line";
 441                 else if (!strcmp(devc->trigger_source, "CHAN1"))
 442                         tmp_str = "CH1";
 443                 else if (!strcmp(devc->trigger_source, "CHAN2"))
 444                         tmp_str = "CH2";
 445                 else
 446                         tmp_str = devc->trigger_source;
 447                 *data = g_variant_new_string(tmp_str);
 448                 break;
 449         case SR_CONF_TRIGGER_SLOPE:
 450                 if (!strncmp(devc->trigger_slope, "POS", 3)) {
 451                         tmp_str = "r";
 452                 } else if (!strncmp(devc->trigger_slope, "NEG", 3)) {
 453                         tmp_str = "f";
 454                 } else {
 455                         sr_dbg("Unknown trigger slope: '%s'.", devc->trigger_slope);
 456                         return SR_ERR_NA;
 457                 }
 458                 *data = g_variant_new_string(tmp_str);
 459                 break;
 460         case SR_CONF_TRIGGER_LEVEL:
 461                 *data = g_variant_new_double(devc->trigger_level);
 462                 break;
 463         case SR_CONF_HORIZ_TRIGGERPOS:
 464                 *data = g_variant_new_double(devc->horiz_triggerpos);
 465                 break;
 466         case SR_CONF_TIMEBASE:
 467                 for (i = 0; i < devc->num_timebases; i++) {
 468                         float tb, diff;
 469
 470                         tb = (float)devc->timebases[i][0] / devc->timebases[i][1];
 471                         diff = fabs(devc->timebase - tb);
 472                         if (diff < smallest_diff) {
 473                                 smallest_diff = diff;
 474                                 idx = i;
 475                         }
 476                 }
 477                 if (idx < 0) {
 478                         sr_dbg("Negative timebase index: %d.", idx);
 479                         return SR_ERR_NA;
 480                 }
 481                 *data = g_variant_new("(tt)", devc->timebases[idx][0],
 482                         devc->timebases[idx][1]);
 483                 break;
 484         case SR_CONF_VDIV:
 485                 if (analog_channel < 0) {
 486                         sr_dbg("Negative analog channel: %d.", analog_channel);
 487                         return SR_ERR_NA;
 488                 }
 489                 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
 490                         float vdiv = (float)vdivs[i][0] / vdivs[i][1];
 491                         float diff = fabsf(devc->vdiv[analog_channel] - vdiv);
 492                         if (diff < smallest_diff) {
 493                                 smallest_diff = diff;
 494                                 idx = i;
 495                         }
 496                 }
 497                 if (idx < 0) {
 498                         sr_dbg("Negative vdiv index: %d.", idx);
 499                         return SR_ERR_NA;
 500                 }
 501                 *data = g_variant_new("(tt)", vdivs[idx][0], vdivs[idx][1]);
 502                 break;
 503         case SR_CONF_COUPLING:
 504                 if (analog_channel < 0) {
 505                         sr_dbg("Negative analog channel: %d.", analog_channel);
 506                         return SR_ERR_NA;
 507                 }
 508                 *data = g_variant_new_string(devc->coupling[analog_channel]);
 509                 break;
 510         case SR_CONF_PROBE_FACTOR:
 511                 if (analog_channel < 0) {
 512                         sr_dbg("Negative analog channel: %d.", analog_channel);
 513                         return SR_ERR_NA;
 514                 }
 515                 *data = g_variant_new_uint64(devc->attenuation[analog_channel]);
 516                 break;
 517         default:
 518                 return SR_ERR_NA;
 519         }
 520
 521         return SR_OK;
 522 }
 523
 524 static int config_set(uint32_t key, GVariant *data,
 525         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 526 {
 527         struct dev_context *devc;
 528         uint64_t p;
 529         double t_dbl;
 530         int i;
 531         int ret, idx;
 532         const char *tmp_str;
 533         char buffer[16];
 534         char *cmd = NULL;
 535         char cmd4[4];
 536
 537         devc = sdi->priv;
 538
 539         /* If a channel group is specified, it must be a valid one. */
 540         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 541                 sr_err("Invalid channel group specified.");
 542                 return SR_ERR;
 543         }
 544
 545         ret = SR_OK;
 546         switch (key) {
 547         case SR_CONF_LIMIT_FRAMES:
 548                 devc->limit_frames = g_variant_get_uint64(data);
 549                 break;
 550         case SR_CONF_TRIGGER_SLOPE:
 551                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0)
 552                         return SR_ERR_ARG;
 553                 g_free(devc->trigger_slope);
 554                 devc->trigger_slope = g_strdup((trigger_slopes[idx][0] == 'r') ? "POS" : "NEG");
 555                 return siglent_sds_config_set(sdi, "%s:TRSL %s",
 556                         devc->trigger_source, devc->trigger_slope);
 557         case SR_CONF_HORIZ_TRIGGERPOS:
 558                 t_dbl = g_variant_get_double(data);
 559                 if (t_dbl < 0.0 || t_dbl > 1.0) {
 560                         sr_err("Invalid horiz. trigger position: %g.", t_dbl);
 561                         return SR_ERR;
 562                 }
 563                 devc->horiz_triggerpos = t_dbl;
 564                 /* We have the trigger offset as a percentage of the frame, but
 565                  * need to express this in seconds. */
 566                 t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * devc->num_timebases;
 567                 g_ascii_formatd(buffer, sizeof(buffer), "%.6f", t_dbl);
 568                 return siglent_sds_config_set(sdi, ":TIM:OFFS %s", buffer);
 569         case SR_CONF_TRIGGER_LEVEL:
 570                 t_dbl = g_variant_get_double(data);
 571                 g_ascii_formatd(buffer, sizeof(buffer), "%.3f", t_dbl);
 572                 ret = siglent_sds_config_set(sdi, ":TRIG:EDGE:LEV %s", buffer);
 573                 if (ret == SR_OK)
 574                         devc->trigger_level = t_dbl;
 575                 break;
 576         case SR_CONF_TIMEBASE:
 577                 if ((idx = std_u64_tuple_idx(data, devc->timebases, devc->num_timebases)) < 0)
 578                         return SR_ERR_ARG;
 579                 devc->timebase = (float)devc->timebases[idx][0] / devc->timebases[idx][1];
 580                 p = devc->timebases[idx][0];
 581                 switch (devc->timebases[idx][1]) {
 582                 case 1:
 583                         cmd = g_strdup_printf("%" PRIu64 "S", p);
 584                         break;
 585                 case 1000:
 586                         cmd = g_strdup_printf("%" PRIu64 "MS", p);
 587                         break;
 588                 case 1000000:
 589                         cmd = g_strdup_printf("%" PRIu64 "US", p);
 590                         break;
 591                 case 1000000000:
 592                         cmd = g_strdup_printf("%" PRIu64 "NS", p);
 593                         break;
 594                 }
 595                 ret = siglent_sds_config_set(sdi, "TDIV %s", cmd);
 596                 g_free(cmd);
 597                 return ret;
 598         case SR_CONF_TRIGGER_SOURCE:
 599                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_sources))) < 0)
 600                         return SR_ERR_ARG;
 601                 g_free(devc->trigger_source);
 602                 devc->trigger_source = g_strdup(trigger_sources[idx]);
 603                 if (!strcmp(devc->trigger_source, "AC Line"))
 604                         tmp_str = "LINE";
 605                 else if (!strcmp(devc->trigger_source, "CH1"))
 606                         tmp_str = "C1";
 607                 else if (!strcmp(devc->trigger_source, "CH2"))
 608                         tmp_str = "C2";
 609                 else if (!strcmp(devc->trigger_source, "CH3"))
 610                         tmp_str = "C3";
 611                 else if (!strcmp(devc->trigger_source, "CH4"))
 612                         tmp_str = "C4";
 613                 else if (!strcmp(devc->trigger_source, "Ext"))
 614                         tmp_str = "EX";
 615                 else if (!strcmp(devc->trigger_source, "Ext /5"))
 616                         tmp_str = "EX5";
 617                 else
 618                         tmp_str = (char *)devc->trigger_source;
 619                 return siglent_sds_config_set(sdi, "TRSE EDGE,SR,%s,OFF", tmp_str);
 620         case SR_CONF_VDIV:
 621                 if (!cg)
 622                         return SR_ERR_CHANNEL_GROUP;
 623                 if ((i = std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels)) < 0)
 624                         return SR_ERR_ARG;
 625                 if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(vdivs))) < 0)
 626                         return SR_ERR_ARG;
 627                 devc->vdiv[i] = (float)vdivs[idx][0] / vdivs[idx][1];
 628                 p = vdivs[idx][0];
 629                 switch (vdivs[idx][1]) {
 630                 case 1:
 631                         cmd = g_strdup_printf("%" PRIu64 "V", p);
 632                         break;
 633                 case 1000:
 634                         cmd = g_strdup_printf("%" PRIu64 "MV", p);
 635                         break;
 636                 case 100000:
 637                         cmd = g_strdup_printf("%" PRIu64 "UV", p);
 638                         break;
 639                 }
 640                 ret = siglent_sds_config_set(sdi, "C%d:VDIV %s", i + 1, cmd);
 641                 g_free(cmd);
 642                 return ret;
 643         case SR_CONF_COUPLING:
 644                 if (!cg)
 645                         return SR_ERR_CHANNEL_GROUP;
 646                 if ((i = std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels)) < 0)
 647                         return SR_ERR_ARG;
 648                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(coupling))) < 0)
 649                         return SR_ERR_ARG;
 650                 g_free(devc->coupling[i]);
 651                 devc->coupling[i] = g_strdup(coupling[idx]);
 652                 strncpy(cmd4, devc->coupling[i], 3);
 653                 cmd4[3] = 0;
 654                 return siglent_sds_config_set(sdi, "C%d:CPL %s", i + 1, cmd4);
 655         case SR_CONF_PROBE_FACTOR:
 656                 if (!cg)
 657                         return SR_ERR_CHANNEL_GROUP;
 658                 if ((i = std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels)) < 0)
 659                         return SR_ERR_ARG;
 660                 if ((idx = std_u64_idx(data, ARRAY_AND_SIZE(probe_factor))) < 0)
 661                         return SR_ERR_ARG;
 662                 p = g_variant_get_uint64(data);
 663                 devc->attenuation[i] = probe_factor[idx];
 664                 ret = siglent_sds_config_set(sdi, "C%d:ATTN %" PRIu64, i + 1, p);
 665                 if (ret == SR_OK)
 666                         siglent_sds_get_dev_cfg_vertical(sdi);
 667                 return ret;
 668         case SR_CONF_DATA_SOURCE:
 669                 tmp_str = g_variant_get_string(data, NULL);
 670                 if (!strcmp(tmp_str, "Display"))
 671                         devc->data_source = DATA_SOURCE_SCREEN;
 672                 else if (devc->model->series->protocol >= SPO_MODEL
 673                         && !strcmp(tmp_str, "History"))
 674                         devc->data_source = DATA_SOURCE_HISTORY;
 675                 else {
 676                         sr_err("Unknown data source: '%s'.", tmp_str);
 677                         return SR_ERR;
 678                 }
 679                 break;
 680         case SR_CONF_SAMPLERATE:
 681                 siglent_sds_get_dev_cfg_horizontal(sdi);
 682                 data = g_variant_new_uint64(devc->samplerate);
 683                 break;
 684         case SR_CONF_AVERAGING:
 685                 devc->average_enabled = g_variant_get_boolean(data);
 686                 sr_dbg("%s averaging", devc->average_enabled ? "Enabling" : "Disabling");
 687                 break;
 688         case SR_CONF_AVG_SAMPLES:
 689                 devc->average_samples = g_variant_get_uint64(data);
 690                 sr_dbg("Setting averaging rate to %" PRIu64, devc->average_samples);
 691                 break;
 692         default:
 693                 return SR_ERR_NA;
 694         }
 695
 696         return ret;
 697 }
 698
 699 static int config_list(uint32_t key, GVariant **data,
 700         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 701 {
 702         struct dev_context *devc;
 703
 704         devc = (sdi) ? sdi->priv : NULL;
 705
 706         switch (key) {
 707         case SR_CONF_SCAN_OPTIONS:
 708         case SR_CONF_DEVICE_OPTIONS:
 709                 if (!cg)
 710                         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 711                 if (!devc)
 712                         return SR_ERR_ARG;
 713                 if (cg == devc->digital_group) {
 714                         *data = std_gvar_array_u32(NULL, 0);
 715                         return SR_OK;
 716                 } else {
 717                         if (std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels) < 0)
 718                                 return SR_ERR_ARG;
 719                         *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
 720                         return SR_OK;
 721                 }
 722                 break;
 723         case SR_CONF_COUPLING:
 724                 if (!cg)
 725                         return SR_ERR_CHANNEL_GROUP;
 726                 *data = g_variant_new_strv(ARRAY_AND_SIZE(coupling));
 727                 break;
 728         case SR_CONF_PROBE_FACTOR:
 729                 if (!cg)
 730                         return SR_ERR_CHANNEL_GROUP;
 731                 *data = std_gvar_array_u64(ARRAY_AND_SIZE(probe_factor));
 732                 break;
 733         case SR_CONF_VDIV:
 734                 if (!devc)
 735                         /* Can't know this until we have the exact model. */
 736                         return SR_ERR_ARG;
 737                 if (!cg)
 738                         return SR_ERR_CHANNEL_GROUP;
 739                 *data = std_gvar_tuple_array(devc->vdivs, devc->num_vdivs);
 740                 break;
 741         case SR_CONF_TIMEBASE:
 742                 if (!devc)
 743                         /* Can't know this until we have the exact model. */
 744                         return SR_ERR_ARG;
 745                 if (devc->num_timebases <= 0)
 746                         return SR_ERR_NA;
 747                 *data = std_gvar_tuple_array(devc->timebases, devc->num_timebases);
 748                 break;
 749         case SR_CONF_TRIGGER_SOURCE:
 750                 if (!devc)
 751                         /* Can't know this until we have the exact model. */
 752                         return SR_ERR_ARG;
 753                 *data = g_variant_new_strv(trigger_sources,
 754                         devc->model->has_digital ? ARRAY_SIZE(trigger_sources) : 5);
 755                 break;
 756         case SR_CONF_TRIGGER_SLOPE:
 757                 *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_slopes));
 758                 break;
 759         case SR_CONF_DATA_SOURCE:
 760                 if (!devc)
 761                         /* Can't know this until we have the exact model. */
 762                         return SR_ERR_ARG;
 763                 switch (devc->model->series->protocol) {
 764                 /* TODO: Check what must be done here for the data source buffer sizes. */
 765                 case NON_SPO_MODEL:
 766                         *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources) - 1);
 767                         break;
 768                 case SPO_MODEL:
 769                         *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
 770                         break;
 771                 }
 772                 break;
 773         case SR_CONF_NUM_HDIV:
 774                 *data = g_variant_new_int32(devc->model->series->num_horizontal_divs);
 775                 break;
 776         case SR_CONF_AVERAGING:
 777                 *data = g_variant_new_boolean(devc->average_enabled);
 778                 break;
 779         default:
 780                 return SR_ERR_NA;
 781         }
 782
 783         return SR_OK;
 784 }
 785
 786 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 787 {
 788         struct sr_scpi_dev_inst *scpi;
 789         struct dev_context *devc;
 790         struct sr_channel *ch;
 791         struct sr_datafeed_packet packet;
 792         gboolean some_digital;
 793         GSList *l, *d;
 794
 795         scpi = sdi->conn;
 796         devc = sdi->priv;
 797
 798         devc->num_frames = 0;
 799         some_digital = FALSE;
 800
 801         /*
 802          * Check if there are any logic channels enabled, if so then enable
 803          * the MSO, otherwise skip the digital channel setup. Enable and
 804          * disable channels on the device is very slow and it is faster when
 805          * checked in a small loop without the actual actions.
 806          */
 807         for (d = sdi->channels; d; d = d->next) {
 808                 ch = d->data;
 809                 if (ch->type == SR_CHANNEL_LOGIC && ch->enabled)
 810                         some_digital = TRUE;
 811         }
 812
 813         for (l = sdi->channels; l; l = l->next) {
 814                 ch = l->data;
 815                 if (ch->type == SR_CHANNEL_ANALOG) {
 816                         if (ch->enabled)
 817                                 devc->enabled_channels = g_slist_append(
 818                                         devc->enabled_channels, ch);
 819                         if (ch->enabled != devc->analog_channels[ch->index]) {
 820                                 /* Enabled channel is currently disabled, or vice versa. */
 821                                 if (siglent_sds_config_set(sdi, "C%d:TRA %s", ch->index + 1,
 822                                         ch->enabled ? "ON" : "OFF") != SR_OK)
 823                                         return SR_ERR;
 824                                 devc->analog_channels[ch->index] = ch->enabled;
 825                         }
 826                 } else if (ch->type == SR_CHANNEL_LOGIC && some_digital) {
 827                         if (ch->enabled) {
 828                                 /* Turn on LA module if currently off and digital channels are enabled. */
 829                                 if (!devc->la_enabled) {
 830                                         if (siglent_sds_config_set(sdi, "DGST ON") != SR_OK)
 831                                                 return SR_ERR;
 832                                         g_usleep(630000);
 833                                         devc->la_enabled = TRUE;
 834                                 }
 835                                 devc->enabled_channels = g_slist_append(
 836                                         devc->enabled_channels, ch);
 837                         }
 838                         /* Enabled channel is currently disabled, or vice versa. */
 839                         if (siglent_sds_config_set(sdi, "D%d:DGCH %s", ch->index,
 840                                 ch->enabled ? "ON" : "OFF") != SR_OK)
 841                                 return SR_ERR;
 842                         /* Slowing the command sequence down to let the device handle it. */
 843                         g_usleep(630000);
 844                         devc->digital_channels[ch->index] = ch->enabled;
 845                 }
 846         }
 847         if (!devc->enabled_channels)
 848                 return SR_ERR;
 849         /* Turn off LA module if on and no digital channels selected. */
 850         if (devc->la_enabled && !some_digital)
 851                 if (siglent_sds_config_set(sdi, "DGST OFF") != SR_OK) {
 852                         devc->la_enabled = FALSE;
 853                         g_usleep(500000);
 854                         return SR_ERR;
 855                 }
 856
 857         // devc->analog_frame_size = devc->model->series->buffer_samples;
 858         // devc->digital_frame_size = devc->model->series->buffer_samples;
 859
 860         siglent_sds_get_dev_cfg_horizontal(sdi);
 861         switch (devc->model->series->protocol) {
 862         case SPO_MODEL:
 863                 if (siglent_sds_config_set(sdi, "WFSU SP,0,TYPE,1") != SR_OK)
 864                         return SR_ERR;
 865                 if (devc->average_enabled) {
 866                         if (siglent_sds_config_set(sdi, "ACQW AVERAGE,%i", devc->average_samples) != SR_OK)
 867                                 return SR_ERR;
 868                 } else {
 869                         if (siglent_sds_config_set(sdi, "ACQW SAMPLING") != SR_OK)
 870                                 return SR_ERR;
 871                 }
 872                 break;
 873         case NON_SPO_MODEL:
 874                 /* TODO: Implement CML/CNL/DL models. */
 875                 if (siglent_sds_config_set(sdi, "WFSU SP,0,TYPE,1") != SR_OK)
 876                         return SR_ERR;
 877                 if (siglent_sds_config_set(sdi, "ACQW SAMPLING") != SR_OK)
 878                         return SR_ERR;
 879                 break;
 880         default:
 881                 break;
 882         }
 883
 884         sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
 885                 siglent_sds_receive, (void *) sdi);
 886
 887         std_session_send_df_header(sdi);
 888
 889         devc->channel_entry = devc->enabled_channels;
 890
 891         if (siglent_sds_capture_start(sdi) != SR_OK)
 892                 return SR_ERR;
 893
 894         /* Start of first frame. */
 895         packet.type = SR_DF_FRAME_BEGIN;
 896         sr_session_send(sdi, &packet);
 897
 898         return SR_OK;
 899 }
 900
 901 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 902 {
 903         struct dev_context *devc;
 904         struct sr_scpi_dev_inst *scpi;
 905
 906         devc = sdi->priv;
 907
 908         std_session_send_df_end(sdi);
 909
 910         g_slist_free(devc->enabled_channels);
 911         devc->enabled_channels = NULL;
 912         scpi = sdi->conn;
 913         sr_scpi_source_remove(sdi->session, scpi);
 914
 915         return SR_OK;
 916 }
 917
 918 SR_PRIV struct sr_dev_driver siglent_sds_driver_info = {
 919         .name = "siglent-sds",
 920         .longname = "Siglent SDS1000/SDS2000",
 921         .api_version = 1,
 922         .init = std_init,
 923         .cleanup = std_cleanup,
 924         .scan = scan,
 925         .dev_list = std_dev_list,
 926         .dev_clear = dev_clear,
 927         .config_get = config_get,
 928         .config_set = config_set,
 929         .config_list = config_list,
 930         .dev_open = dev_open,
 931         .dev_close = dev_close,
 932         .dev_acquisition_start = dev_acquisition_start,
 933         .dev_acquisition_stop = dev_acquisition_stop,
 934         .context = NULL,
 935 };
 936
 937 SR_REGISTER_DEV_DRIVER(siglent_sds_driver_info);