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 devopts[] = {
  39         SR_CONF_OSCILLOSCOPE,
  40         SR_CONF_LOGIC_ANALYZER,
  41         SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  42         SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  43         SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  44         SR_CONF_TRIGGER_LEVEL | SR_CONF_GET | SR_CONF_SET,
  45         SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
  46         SR_CONF_NUM_HDIV | SR_CONF_GET | SR_CONF_LIST,
  47         SR_CONF_SAMPLERATE | SR_CONF_GET,
  48         SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET,
  49         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  50         SR_CONF_AVERAGING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  51         SR_CONF_AVG_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  52 };
  53
  54 static const uint32_t analog_devopts[] = {
  55         SR_CONF_NUM_VDIV | SR_CONF_GET,
  56         SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  57         SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  58         SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  59         SR_CONF_PROBE_FACTOR | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  60         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  61 };
  62
  63 static const uint64_t timebases[][2] = {
  64         /* nanoseconds */
  65         { 1, 1000000000 },
  66         { 2, 1000000000 },
  67         { 5, 1000000000 },
  68         { 10, 1000000000 },
  69         { 20, 1000000000 },
  70         { 50, 1000000000 },
  71         { 100, 1000000000 },
  72         { 200, 1000000000 },
  73         { 500, 1000000000 },
  74         /* microseconds */
  75         { 1, 1000000 },
  76         { 2, 1000000 },
  77         { 5, 1000000 },
  78         { 10, 1000000 },
  79         { 20, 1000000 },
  80         { 50, 1000000 },
  81         { 100, 1000000 },
  82         { 200, 1000000 },
  83         { 500, 1000000 },
  84         /* milliseconds */
  85         { 1, 1000 },
  86         { 2, 1000 },
  87         { 5, 1000 },
  88         { 10, 1000 },
  89         { 20, 1000 },
  90         { 50, 1000 },
  91         { 100, 1000 },
  92         { 200, 1000 },
  93         { 500, 1000 },
  94         /* seconds */
  95         { 1, 1 },
  96         { 2, 1 },
  97         { 5, 1 },
  98         { 10, 1 },
  99         { 20, 1 },
 100         { 50, 1 },
 101         { 100, 1 },
 102 };
 103
 104 static const uint64_t vdivs[][2] = {
 105         /* microvolts */
 106         { 500, 100000 },
 107         /* millivolts */
 108         { 1, 1000 },
 109         { 2, 1000 },
 110         { 5, 1000 },
 111         { 10, 1000 },
 112         { 20, 1000 },
 113         { 50, 1000 },
 114         { 100, 1000 },
 115         { 200, 1000 },
 116         { 500, 1000 },
 117         /* volts */
 118         { 1, 1 },
 119         { 2, 1 },
 120         { 5, 1 },
 121         { 10, 1 },
 122         { 20, 1 },
 123         { 50, 1 },
 124         { 100, 1 },
 125 };
 126
 127 #define NUM_TIMEBASE    ARRAY_SIZE(timebases)
 128 #define NUM_VDIV        ARRAY_SIZE(vdivs)
 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, USB name */
 173 static const struct siglent_sds_vendor supported_vendors[] = {
 174         [SIGLENT] = {
 175                 "Siglent", "Siglent Technologies", "Siglent Technologies Co,. Ltd.",
 176         },
 177 };
 178
 179 #define VENDOR(x) &supported_vendors[x]
 180 /* vendor, series, protocol, max timebase, min vdiv, number of horizontal divs,
 181  * number of vertical divs, live waveform samples, memory buffer samples */
 182 static const struct siglent_sds_series supported_series[] = {
 183         [SDS1000CML] = {VENDOR(SIGLENT), "SDS1000CML", NON_SPO_MODEL,
 184                 { 50, 1 }, { 2, 1000 }, 18, 8, 1400363},
 185         [SDS1000CNL] = {VENDOR(SIGLENT), "SDS1000CNL", NON_SPO_MODEL,
 186                 { 50, 1 }, { 2, 1000 }, 18, 8, 1400363},
 187         [SDS1000DL] = {VENDOR(SIGLENT), "SDS1000DL", NON_SPO_MODEL,
 188                 { 50, 1 }, { 2, 1000 }, 18, 8, 1400363},
 189         [SDS1000X] = {VENDOR(SIGLENT), "SDS1000X", SPO_MODEL,
 190                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 191         [SDS1000XP] = {VENDOR(SIGLENT), "SDS1000X+", SPO_MODEL,
 192                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 193         [SDS1000XE] = {VENDOR(SIGLENT), "SDS1000XE", SPO_MODEL,
 194                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 195         [SDS2000X] = {VENDOR(SIGLENT), "SDS2000X", SPO_MODEL,
 196                 { 50, 1 }, { 500, 100000 }, 14, 8, 14000363},
 197 };
 198
 199 #define SERIES(x) &supported_series[x]
 200 /* series, model, min timebase, analog channels, digital */
 201 static const struct siglent_sds_model supported_models[] = {
 202         { SERIES(SDS1000CML), "SDS1152CML", { 20, 1000000000 }, 2, false, 0 },
 203         { SERIES(SDS1000CML), "SDS1102CML", { 10, 1000000000 }, 2, false, 0 },
 204         { SERIES(SDS1000CML), "SDS1072CML", { 5, 1000000000 }, 2, false, 0 },
 205         { SERIES(SDS1000CNL), "SDS1202CNL", { 20, 1000000000 }, 2, false, 0 },
 206         { SERIES(SDS1000CNL), "SDS1102CNL", { 10, 1000000000 }, 2, false, 0 },
 207         { SERIES(SDS1000CNL), "SDS1072CNL", { 5, 1000000000 }, 2, false, 0 },
 208         { SERIES(SDS1000DL), "SDS1202DL", { 20, 1000000000 }, 2, false, 0 },
 209         { SERIES(SDS1000DL), "SDS1102DL", { 10, 1000000000 }, 2, false, 0 },
 210         { SERIES(SDS1000DL), "SDS1022DL", { 5, 1000000000 }, 2, false, 0 },
 211         { SERIES(SDS1000DL), "SDS1052DL", { 5, 1000000000 }, 2, false, 0 },
 212         { SERIES(SDS1000DL), "SDS1052DL+", { 5, 1000000000 }, 2, false, 0 },
 213         { SERIES(SDS1000X), "SDS1102X", { 2, 1000000000 }, 2, false, 0 },
 214         { SERIES(SDS1000XP), "SDS1102X+", { 2, 1000000000 }, 2, false, 0 },
 215         { SERIES(SDS1000X), "SDS1202X", { 2, 1000000000 }, 2, false, 0 },
 216         { SERIES(SDS1000XP), "SDS1202X+", { 2, 1000000000 }, 2, false, 0 },
 217         { SERIES(SDS1000XE), "SDS1202X-E", { 1, 1000000000 }, 2, false, 0 },
 218         { SERIES(SDS1000XE), "SDS1104X-E", { 1, 1000000000 }, 4, true, 16 },
 219         { SERIES(SDS1000XE), "SDS1204X-E", { 1, 1000000000 }, 4, true, 16 },
 220         { SERIES(SDS2000X), "SDS2072X", { 2, 1000000000 }, 2, false, 0 },
 221         { SERIES(SDS2000X), "SDS2074X", { 2, 1000000000 }, 4, false, 0 },
 222         { SERIES(SDS2000X), "SDS2102X", { 2, 1000000000 }, 2, false, 0 },
 223         { SERIES(SDS2000X), "SDS2104X", { 2, 1000000000 }, 4, false, 0 },
 224         { SERIES(SDS2000X), "SDS2202X", { 2, 1000000000 }, 2, false, 0 },
 225         { SERIES(SDS2000X), "SDS2204X", { 2, 1000000000 }, 4, false, 0 },
 226         { SERIES(SDS2000X), "SDS2302X", { 2, 1000000000 }, 2, false, 0 },
 227         { SERIES(SDS2000X), "SDS2304X", { 2, 1000000000 }, 4, false, 0 },
 228 };
 229
 230 SR_PRIV struct sr_dev_driver siglent_sds_driver_info;
 231
 232 static void clear_helper(void *priv)
 233 {
 234         struct dev_context *devc;
 235
 236         devc = priv;
 237         if (!devc)
 238                 return;
 239         g_free(devc->analog_groups);
 240         g_free(devc->enabled_channels);
 241 }
 242
 243 static int dev_clear(const struct sr_dev_driver *di)
 244 {
 245         return std_dev_clear_with_callback(di, clear_helper);
 246 }
 247
 248 static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 249 {
 250         struct dev_context *devc;
 251         struct sr_dev_inst *sdi;
 252         struct sr_scpi_hw_info *hw_info;
 253         struct sr_channel *ch;
 254         unsigned int i;
 255         const struct siglent_sds_model *model;
 256         gchar *channel_name;
 257
 258         sr_dbg("Setting Communication Headers to off.");
 259         if (sr_scpi_send(scpi, "CHDR OFF") != SR_OK)
 260                 return NULL;
 261
 262         if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
 263                 sr_info("Couldn't get IDN response, retrying.");
 264                 sr_scpi_close(scpi);
 265                 sr_scpi_open(scpi);
 266                 if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
 267                         sr_info("Couldn't get IDN response.");
 268                         return NULL;
 269                 }
 270         }
 271
 272         model = NULL;
 273         for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
 274                 if (!strcmp(hw_info->model, supported_models[i].name)) {
 275                         model = &supported_models[i];
 276                         break;
 277                 }
 278         }
 279
 280         if (!model) {
 281                 sr_scpi_hw_info_free(hw_info);
 282                 return NULL;
 283         }
 284
 285         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 286         sdi->vendor = g_strdup(model->series->vendor->name);
 287         sdi->model = g_strdup(model->name);
 288         sdi->version = g_strdup(hw_info->firmware_version);
 289         sdi->conn = scpi;
 290         sdi->driver = &siglent_sds_driver_info;
 291         sdi->inst_type = SR_INST_SCPI;
 292         sdi->serial_num = g_strdup(hw_info->serial_number);
 293         devc = g_malloc0(sizeof(struct dev_context));
 294         devc->limit_frames = 1;
 295         devc->model = model;
 296
 297         sr_scpi_hw_info_free(hw_info);
 298
 299         devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group *) *
 300                 model->analog_channels);
 301
 302         for (i = 0; i < model->analog_channels; i++) {
 303                 channel_name = g_strdup_printf("CH%d", i + 1);
 304                 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_name);
 305
 306                 devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
 307
 308                 devc->analog_groups[i]->name = channel_name;
 309                 devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
 310                 sdi->channel_groups = g_slist_append(sdi->channel_groups,
 311                         devc->analog_groups[i]);
 312         }
 313
 314         if (devc->model->has_digital) {
 315                 devc->digital_group = g_malloc0(sizeof(struct sr_channel_group));
 316
 317                 for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) {
 318                         channel_name = g_strdup_printf("D%d", i);
 319                         ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
 320                         g_free(channel_name);
 321                         devc->digital_group->channels = g_slist_append(
 322                                 devc->digital_group->channels, ch);
 323                 }
 324                 devc->digital_group->name = g_strdup("LA");
 325                 sdi->channel_groups = g_slist_append(sdi->channel_groups,
 326                         devc->digital_group);
 327         }
 328
 329         for (i = 0; i < NUM_TIMEBASE; i++) {
 330                 if (!memcmp(&devc->model->min_timebase, &timebases[i], sizeof(uint64_t[2])))
 331                         devc->timebases = &timebases[i];
 332
 333                 if (!memcmp(&devc->model->series->max_timebase, &timebases[i], sizeof(uint64_t[2])))
 334                         devc->num_timebases = &timebases[i] - devc->timebases + 1;
 335         }
 336
 337         for (i = 0; i < NUM_VDIV; i++) {
 338                 devc->vdivs = &vdivs[i];
 339                 if (!memcmp(&devc->model->series->min_vdiv,
 340                         &vdivs[i], sizeof(uint64_t[2]))) {
 341                         devc->vdivs = &vdivs[i];
 342                         devc->num_vdivs = NUM_VDIV - i;
 343                         break;
 344                 }
 345         }
 346
 347         devc->buffer = g_malloc(devc->model->series->buffer_samples);
 348         sr_dbg("Setting device context buffer size: %i.", devc->model->series->buffer_samples);
 349         devc->data = g_malloc(devc->model->series->buffer_samples * sizeof(float));
 350
 351         devc->data_source = DATA_SOURCE_SCREEN;
 352
 353         sdi->priv = devc;
 354
 355         return sdi;
 356 }
 357
 358 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 359 {
 360         /* TODO: Implement RPC call for LXI device discovery. */
 361         return sr_scpi_scan(di->context, options, probe_device);
 362 }
 363
 364 static int dev_open(struct sr_dev_inst *sdi)
 365 {
 366         int ret;
 367         struct sr_scpi_dev_inst *scpi = sdi->conn;
 368
 369         if ((ret = sr_scpi_open(scpi)) < 0) {
 370                 sr_err("Failed to open SCPI device: %s.", sr_strerror(ret));
 371                 return SR_ERR;
 372         }
 373
 374         if ((ret = siglent_sds_get_dev_cfg(sdi)) < 0) {
 375                 sr_err("Failed to get device config: %s.", sr_strerror(ret));
 376                 return SR_ERR;
 377         }
 378
 379         sdi->status = SR_ST_ACTIVE;
 380
 381         return SR_OK;
 382 }
 383
 384 static int dev_close(struct sr_dev_inst *sdi)
 385 {
 386         return sr_scpi_close(sdi->conn);
 387 }
 388
 389 static int config_get(uint32_t key, GVariant **data,
 390         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 391 {
 392         struct dev_context *devc;
 393         struct sr_channel *ch;
 394         const char *tmp_str;
 395         int analog_channel = -1;
 396         float smallest_diff = INFINITY;
 397         int idx = -1;
 398         unsigned i;
 399
 400         if (!sdi)
 401                 return SR_ERR_ARG;
 402
 403         devc = sdi->priv;
 404
 405         /* If a channel group is specified, it must be a valid one. */
 406         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 407                 sr_err("Invalid channel group specified.");
 408                 return SR_ERR;
 409         }
 410
 411         if (cg) {
 412                 ch = g_slist_nth_data(cg->channels, 0);
 413                 if (!ch)
 414                         return SR_ERR;
 415                 if (ch->type == SR_CHANNEL_ANALOG) {
 416                         if (ch->name[2] < '1' || ch->name[2] > '4')
 417                                 return SR_ERR;
 418                         analog_channel = ch->name[2] - '1';
 419                 }
 420         }
 421
 422         switch (key) {
 423         case SR_CONF_NUM_HDIV:
 424                 *data = g_variant_new_int32(devc->model->series->num_horizontal_divs);
 425                 break;
 426         case SR_CONF_NUM_VDIV:
 427                 *data = g_variant_new_int32(devc->num_vdivs);
 428                 break;
 429         case SR_CONF_LIMIT_FRAMES:
 430                 *data = g_variant_new_uint64(devc->limit_frames);
 431                 break;
 432         case SR_CONF_DATA_SOURCE:
 433                 if (devc->data_source == DATA_SOURCE_SCREEN)
 434                         *data = g_variant_new_string("Screen");
 435                 else if (devc->data_source == DATA_SOURCE_HISTORY)
 436                         *data = g_variant_new_string("History");
 437                 break;
 438         case SR_CONF_SAMPLERATE:
 439                 siglent_sds_get_dev_cfg_horizontal(sdi);
 440                 *data = g_variant_new_uint64(devc->sampleRate);
 441                 break;
 442         case SR_CONF_TRIGGER_SOURCE:
 443                 if (!strcmp(devc->trigger_source, "ACL"))
 444                         tmp_str = "AC Line";
 445                 else if (!strcmp(devc->trigger_source, "CHAN1"))
 446                         tmp_str = "CH1";
 447                 else if (!strcmp(devc->trigger_source, "CHAN2"))
 448                         tmp_str = "CH2";
 449                 else
 450                         tmp_str = devc->trigger_source;
 451                 *data = g_variant_new_string(tmp_str);
 452                 break;
 453         case SR_CONF_TRIGGER_SLOPE:
 454                 if (!strncmp(devc->trigger_slope, "POS", 3)) {
 455                         tmp_str = "r";
 456                 } else if (!strncmp(devc->trigger_slope, "NEG", 3)) {
 457                         tmp_str = "f";
 458                 } else {
 459                         sr_dbg("Unknown trigger slope: '%s'.", devc->trigger_slope);
 460                         return SR_ERR_NA;
 461                 }
 462                 *data = g_variant_new_string(tmp_str);
 463                 break;
 464         case SR_CONF_TRIGGER_LEVEL:
 465                 *data = g_variant_new_double(devc->trigger_level);
 466                 break;
 467         case SR_CONF_HORIZ_TRIGGERPOS:
 468                 *data = g_variant_new_double(devc->horiz_triggerpos);
 469                 break;
 470         case SR_CONF_TIMEBASE:
 471                 for (i = 0; i < devc->num_timebases; i++) {
 472                         float tb, diff;
 473
 474                         tb = (float)devc->timebases[i][0] / devc->timebases[i][1];
 475                         diff = fabs(devc->timebase - tb);
 476                         if (diff < smallest_diff) {
 477                                 smallest_diff = diff;
 478                                 idx = i;
 479                         }
 480                 }
 481                 if (idx < 0) {
 482                         sr_dbg("Negative timebase index: %d.", idx);
 483                         return SR_ERR_NA;
 484                 }
 485                 *data = g_variant_new("(tt)", devc->timebases[idx][0],
 486                         devc->timebases[idx][1]);
 487                 break;
 488         case SR_CONF_VDIV:
 489                 if (analog_channel < 0) {
 490                         sr_dbg("Negative analog channel: %d.", analog_channel);
 491                         return SR_ERR_NA;
 492                 }
 493                 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
 494                         float vdiv, diff;
 495
 496                         vdiv = (float)vdivs[i][0] / vdivs[i][1];
 497                         diff = fabsf(devc->vdiv[analog_channel] - vdiv);
 498                         if (diff < smallest_diff) {
 499                                 smallest_diff = diff;
 500                                 idx = i;
 501                         }
 502                 }
 503                 if (idx < 0) {
 504                         sr_dbg("Negative vdiv index: %d.", idx);
 505                         return SR_ERR_NA;
 506                 }
 507                 *data = g_variant_new("(tt)", vdivs[idx][0], vdivs[idx][1]);
 508                 break;
 509         case SR_CONF_COUPLING:
 510                 if (analog_channel < 0) {
 511                         sr_dbg("Negative analog channel: %d.", analog_channel);
 512                         return SR_ERR_NA;
 513                 }
 514                 *data = g_variant_new_string(devc->coupling[analog_channel]);
 515                 break;
 516         case SR_CONF_PROBE_FACTOR:
 517                 if (analog_channel < 0) {
 518                         sr_dbg("Negative analog channel: %d.", analog_channel);
 519                         return SR_ERR_NA;
 520                 }
 521                 *data = g_variant_new_uint64(devc->attenuation[analog_channel]);
 522                 break;
 523         default:
 524                 return SR_ERR_NA;
 525         }
 526
 527         return SR_OK;
 528 }
 529
 530 static int config_set(uint32_t key, GVariant *data,
 531         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 532 {
 533         struct dev_context *devc;
 534         uint64_t p, q;
 535         double t_dbl;
 536         unsigned int i, j;
 537         int ret, idx;
 538         const char *tmp_str;
 539         char buffer[16];
 540
 541         devc = sdi->priv;
 542
 543         if (sdi->status != SR_ST_ACTIVE)
 544                 return SR_ERR_DEV_CLOSED;
 545
 546         /* If a channel group is specified, it must be a valid one. */
 547         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 548                 sr_err("Invalid channel group specified.");
 549                 return SR_ERR;
 550         }
 551
 552         ret = SR_OK;
 553         switch (key) {
 554         case SR_CONF_LIMIT_FRAMES:
 555                 devc->limit_frames = g_variant_get_uint64(data);
 556                 break;
 557         case SR_CONF_TRIGGER_SLOPE:
 558                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0)
 559                         return SR_ERR_ARG;
 560                 g_free(devc->trigger_slope);
 561                 devc->trigger_slope = g_strdup((trigger_slopes[idx][0] == 'r') ? "POS" : "NEG");
 562                 ret = siglent_sds_config_set(sdi, "%s:TRSL %s",
 563                         devc->trigger_source, devc->trigger_slope);
 564                 break;
 565         case SR_CONF_HORIZ_TRIGGERPOS:
 566                 t_dbl = g_variant_get_double(data);
 567                 if (t_dbl < 0.0 || t_dbl > 1.0) {
 568                         sr_err("Invalid horiz. trigger position: %g.", t_dbl);
 569                         return SR_ERR;
 570                 }
 571                 devc->horiz_triggerpos = t_dbl;
 572                 /* We have the trigger offset as a percentage of the frame, but
 573                  * need to express this in seconds. */
 574                 t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * devc->num_timebases;
 575                 g_ascii_formatd(buffer, sizeof(buffer), "%.6f", t_dbl);
 576                 ret = siglent_sds_config_set(sdi, ":TIM:OFFS %s", buffer);
 577                 break;
 578         case SR_CONF_TRIGGER_LEVEL:
 579                 t_dbl = g_variant_get_double(data);
 580                 g_ascii_formatd(buffer, sizeof(buffer), "%.3f", t_dbl);
 581                 ret = siglent_sds_config_set(sdi, ":TRIG:EDGE:LEV %s", buffer);
 582                 if (ret == SR_OK)
 583                         devc->trigger_level = t_dbl;
 584                 break;
 585         case SR_CONF_TIMEBASE:
 586                 sr_dbg("Setting device Timebase");
 587                 g_variant_get(data, "(tt)", &p, &q);
 588                 for (i = 0; i < devc->num_timebases; i++) {
 589                         char *cmd;
 590                         if (devc->timebases[i][0] == p && devc->timebases[i][1] == q) {
 591                                 cmd = "";
 592                                 devc->timebase = (float) p / q;
 593                                 switch (q) {
 594                                 case 1:
 595                                         cmd = g_strdup_printf("%luS", p);
 596                                         break;
 597                                 case 1000:
 598                                         cmd = g_strdup_printf("%luMS", p);
 599                                         break;
 600                                 case 1000000:
 601                                         cmd = g_strdup_printf("%luUS", p);
 602                                         break;
 603                                 case 100000000:
 604                                         cmd = g_strdup_printf("%luNS", p);
 605                                         break;
 606                                 }
 607                                 sr_dbg("Setting device timebase: TDIV %s.", cmd);
 608                                 ret = siglent_sds_config_set(sdi, "TDIV %s", cmd);
 609                                 break;
 610                         }
 611                 }
 612                 if (i == devc->num_timebases) {
 613                         sr_err("Invalid timebase index: %d.", i);
 614                         ret = SR_ERR_ARG;
 615                 }
 616                 break;
 617         case SR_CONF_TRIGGER_SOURCE:
 618                 tmp_str = g_variant_get_string(data, NULL);
 619                 for (i = 0; i < ARRAY_SIZE(trigger_sources); i++) {
 620                         if (!strcmp(trigger_sources[i], tmp_str)) {
 621                                 g_free(devc->trigger_source);
 622                                 devc->trigger_source = g_strdup(trigger_sources[i]);
 623                                 if (!strcmp(devc->trigger_source, "AC Line"))
 624                                         tmp_str = "LINE";
 625                                 else if (!strcmp(devc->trigger_source, "CH1"))
 626                                         tmp_str = "C1";
 627                                 else if (!strcmp(devc->trigger_source, "CH2"))
 628                                         tmp_str = "C2";
 629                                 else if (!strcmp(devc->trigger_source, "CH3"))
 630                                         tmp_str = "C3";
 631                                 else if (!strcmp(devc->trigger_source, "CH4"))
 632                                         tmp_str = "C4";
 633                                 else if (!strcmp(devc->trigger_source, "Ext"))
 634                                         tmp_str = "EX";
 635                                 else if (!strcmp(devc->trigger_source, "Ext /5"))
 636                                         tmp_str = "EX5";
 637                                 else
 638                                         tmp_str = (char *) devc->trigger_source;
 639                                 ret = siglent_sds_config_set(sdi, "TRSE EDGE,SR,%s,OFF", tmp_str);
 640                                 break;
 641                         }
 642                 }
 643                 if (i == ARRAY_SIZE(trigger_sources)) {
 644                         sr_err("Invalid trigger source index: %d.", i);
 645                         ret = SR_ERR_ARG;
 646                 }
 647                 break;
 648         case SR_CONF_VDIV:
 649                 if (!cg)
 650                         return SR_ERR_CHANNEL_GROUP;
 651                 g_variant_get(data, "(tt)", &p, &q);
 652                 for (i = 0; i < devc->model->analog_channels; i++) {
 653                         char *cmd;
 654                         if (cg == devc->analog_groups[i]) {
 655                                 for (j = 0; j < ARRAY_SIZE(vdivs); j++) {
 656                                         if (vdivs[j][0] != p || vdivs[j][1] != q)
 657                                                 continue;
 658                                         cmd = "";
 659                                         switch (q) {
 660                                         case 1:
 661                                                 cmd = g_strdup_printf("%luV", p);
 662                                                 break;
 663                                         case 1000:
 664                                                 cmd = g_strdup_printf("%luMV", p);
 665                                                 break;
 666                                         case 100000:
 667                                                 cmd = g_strdup_printf("%luUV", p);
 668                                                 break;
 669                                         }
 670                                         return siglent_sds_config_set(sdi, "C%d:VDIV %s", i + 1, cmd);
 671                                 }
 672                                 sr_err("Invalid vdiv index: %d.", j);
 673                                 return SR_ERR_ARG;
 674                         }
 675                 }
 676                 sr_dbg("Didn't set vdiv, unknown channel(group).");
 677                 return SR_ERR_NA;
 678         case SR_CONF_COUPLING:
 679                 if (!cg)
 680                         return SR_ERR_CHANNEL_GROUP;
 681                 tmp_str = g_variant_get_string(data, NULL);
 682                 for (i = 0; i < devc->model->analog_channels; i++) {
 683                         char cmd[4];
 684                         if (cg == devc->analog_groups[i]) {
 685                                 for (j = 0; j < ARRAY_SIZE(coupling); j++) {
 686                                         if (!strcmp(tmp_str, coupling[j])) {
 687                                                 g_free(devc->coupling[i]);
 688                                                 devc->coupling[i] = g_strdup(coupling[j]);
 689                                                 strncpy(cmd, devc->coupling[i], 3);
 690                                                 cmd[3] = 0;
 691                                                 return siglent_sds_config_set(sdi, "C%d:CPL %s", i + 1, cmd);
 692                                         }
 693                                 }
 694                                 sr_err("Invalid coupling index: %d.", j);
 695                                 return SR_ERR_ARG;
 696                         }
 697                 }
 698                 sr_dbg("Didn't set coupling, unknown channel(group).");
 699                 return SR_ERR_NA;
 700         case SR_CONF_PROBE_FACTOR:
 701                 if (!cg)
 702                         return SR_ERR_CHANNEL_GROUP;
 703                 p = g_variant_get_uint64(data);
 704                 for (i = 0; i < devc->model->analog_channels; i++) {
 705                         if (cg == devc->analog_groups[i]) {
 706                                 for (j = 0; j < ARRAY_SIZE(probe_factor); j++) {
 707                                         if (p == probe_factor[j]) {
 708                                                 devc->attenuation[i] = p;
 709                                                 ret = siglent_sds_config_set(sdi, "C%d:ATTN %" PRIu64, i + 1, p);
 710                                                 if (ret == SR_OK)
 711                                                         siglent_sds_get_dev_cfg_vertical(sdi);
 712                                                 return ret;
 713                                         }
 714                                 }
 715                                 sr_err("Invalid probe factor: %"PRIu64".", p);
 716                                 return SR_ERR_ARG;
 717                         }
 718                 }
 719                 sr_dbg("Didn't set probe factor, unknown channel(group).");
 720                 return SR_ERR_NA;
 721         case SR_CONF_DATA_SOURCE:
 722                 tmp_str = g_variant_get_string(data, NULL);
 723                 if (!strcmp(tmp_str, "Display"))
 724                         devc->data_source = DATA_SOURCE_SCREEN;
 725                 else if (devc->model->series->protocol >= SPO_MODEL
 726                         && !strcmp(tmp_str, "History"))
 727                         devc->data_source = DATA_SOURCE_HISTORY;
 728                 else {
 729                         sr_err("Unknown data source: '%s'.", tmp_str);
 730                         return SR_ERR;
 731                 }
 732                 break;
 733         case SR_CONF_SAMPLERATE:
 734                 siglent_sds_get_dev_cfg_horizontal(sdi);
 735                 data = g_variant_new_uint64(devc->sampleRate);
 736                 break;
 737         default:
 738                 return SR_ERR_NA;
 739         }
 740
 741         return ret;
 742 }
 743
 744 static int config_list(uint32_t key, GVariant **data,
 745         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 746 {
 747         GVariant *tuple, *rational[2];
 748         GVariantBuilder gvb;
 749         unsigned int i;
 750         struct dev_context *devc = NULL;
 751
 752         if (key == SR_CONF_SCAN_OPTIONS) {
 753                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 754                         scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 755                 return SR_OK;
 756         } else if (key == SR_CONF_DEVICE_OPTIONS && !cg) {
 757                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 758                         devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 759                 return SR_OK;
 760         }
 761
 762         /* Every other option requires a valid device instance. */
 763         if (!sdi)
 764                 return SR_ERR_ARG;
 765         devc = sdi->priv;
 766
 767         /* If a channel group is specified, it must be a valid one. */
 768         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 769                 sr_err("Invalid channel group specified.");
 770                 return SR_ERR;
 771         }
 772
 773         switch (key) {
 774         case SR_CONF_DEVICE_OPTIONS:
 775                 if (!cg)
 776                         return SR_ERR_CHANNEL_GROUP;
 777                 if (cg == devc->digital_group) {
 778                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 779                                 NULL, 0, sizeof(uint32_t));
 780                         return SR_OK;
 781                 } else {
 782                         for (i = 0; i < devc->model->analog_channels; i++) {
 783                                 if (cg == devc->analog_groups[i]) {
 784                                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 785                                                 analog_devopts, ARRAY_SIZE(analog_devopts), sizeof(uint32_t));
 786                                         return SR_OK;
 787                                 }
 788                         }
 789                         return SR_ERR_NA;
 790                 }
 791                 break;
 792         case SR_CONF_COUPLING:
 793                 if (!cg)
 794                         return SR_ERR_CHANNEL_GROUP;
 795                 *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling));
 796                 break;
 797         case SR_CONF_PROBE_FACTOR:
 798                 if (!cg)
 799                         return SR_ERR_CHANNEL_GROUP;
 800                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64,
 801                         probe_factor, ARRAY_SIZE(probe_factor), sizeof(uint64_t));
 802                 break;
 803         case SR_CONF_VDIV:
 804                 if (!devc)
 805                         /* Can't know this until we have the exact model. */
 806                         return SR_ERR_ARG;
 807                 if (!cg)
 808                         return SR_ERR_CHANNEL_GROUP;
 809                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 810                 for (i = 0; i < devc->num_vdivs; i++) {
 811                         rational[0] = g_variant_new_uint64(devc->vdivs[i][0]);
 812                         rational[1] = g_variant_new_uint64(devc->vdivs[i][1]);
 813                         tuple = g_variant_new_tuple(rational, 2);
 814                         g_variant_builder_add_value(&gvb, tuple);
 815                 }
 816                 *data = g_variant_builder_end(&gvb);
 817                 break;
 818         case SR_CONF_TIMEBASE:
 819                 if (!devc)
 820                         /* Can't know this until we have the exact model. */
 821                         return SR_ERR_ARG;
 822                 if (devc->num_timebases <= 0)
 823                         return SR_ERR_NA;
 824                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 825                 for (i = 0; i < devc->num_timebases; i++) {
 826                         rational[0] = g_variant_new_uint64(devc->timebases[i][0]);
 827                         rational[1] = g_variant_new_uint64(devc->timebases[i][1]);
 828                         tuple = g_variant_new_tuple(rational, 2);
 829                         g_variant_builder_add_value(&gvb, tuple);
 830                 }
 831                 *data = g_variant_builder_end(&gvb);
 832                 break;
 833         case SR_CONF_TRIGGER_SOURCE:
 834                 if (!devc)
 835                         /* Can't know this until we have the exact model. */
 836                         return SR_ERR_ARG;
 837                 *data = g_variant_new_strv(trigger_sources,
 838                         devc->model->has_digital ? ARRAY_SIZE(trigger_sources) : 5);
 839                 break;
 840         case SR_CONF_TRIGGER_SLOPE:
 841                 *data = g_variant_new_strv(trigger_slopes, ARRAY_SIZE(trigger_slopes));
 842                 break;
 843         case SR_CONF_DATA_SOURCE:
 844                 if (!devc)
 845                         /* Can't know this until we have the exact model. */
 846                         return SR_ERR_ARG;
 847                 switch (devc->model->series->protocol) {
 848                 /* TODO: Check what must be done here for the data source buffer sizes. */
 849                 case NON_SPO_MODEL:
 850                         *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources) - 1);
 851                         break;
 852                 case SPO_MODEL:
 853                         *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
 854                         break;
 855                 }
 856                 break;
 857         case SR_CONF_NUM_HDIV:
 858                 *data = g_variant_new_int32(devc->model->series->num_horizontal_divs);
 859                 break;
 860         case SR_CONF_AVERAGING:
 861                 /* TODO: Implement averaging. */
 862                 break;
 863         default:
 864                 return SR_ERR_NA;
 865         }
 866
 867         return SR_OK;
 868 }
 869
 870 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 871 {
 872         struct sr_scpi_dev_inst *scpi;
 873         struct dev_context *devc;
 874         struct sr_channel *ch;
 875         struct sr_datafeed_packet packet;
 876         gboolean some_digital;
 877         GSList *l;
 878         GSList *d;
 879
 880         if (sdi->status != SR_ST_ACTIVE)
 881                 return SR_ERR_DEV_CLOSED;
 882
 883         scpi = sdi->conn;
 884         devc = sdi->priv;
 885
 886         devc->num_frames = 0;
 887         some_digital = FALSE;
 888
 889         /*
 890          * Check if there are any logic channels enabled, if so then enable
 891          * the MSO, otherwise skip the digital channel setup. Enable and
 892          * disable channels on the device is very slow and it is faster when
 893          * checked in a small loop without the actual actions.
 894          */
 895         for (d = sdi->channels; d; d = d->next) {
 896                 ch = d->data;
 897                 if (ch->type == SR_CHANNEL_LOGIC && ch->enabled)
 898                         some_digital = TRUE;
 899         }
 900
 901         for (l = sdi->channels; l; l = l->next) {
 902                 ch = l->data;
 903                 if (ch->type == SR_CHANNEL_ANALOG) {
 904                         if (ch->enabled)
 905                                 devc->enabled_channels = g_slist_append(
 906                                         devc->enabled_channels, ch);
 907                         if (ch->enabled != devc->analog_channels[ch->index]) {
 908                                 /* Enabled channel is currently disabled, or vice versa. */
 909                                 if (siglent_sds_config_set(sdi, "C%d:TRA %s", ch->index + 1,
 910                                         ch->enabled ? "ON" : "OFF") != SR_OK)
 911                                         return SR_ERR;
 912                                 devc->analog_channels[ch->index] = ch->enabled;
 913                         }
 914                 } else if (ch->type == SR_CHANNEL_LOGIC && some_digital) {
 915                         if (ch->enabled) {
 916                                 /* Turn on LA module if currently off and digital channels are enabled. */
 917                                 if (!devc->la_enabled) {
 918                                         if (siglent_sds_config_set(sdi, "DGST ON") != SR_OK)
 919                                                 return SR_ERR;
 920                                         g_usleep(630000);
 921                                         devc->la_enabled = TRUE;
 922                                 }
 923                                 devc->enabled_channels = g_slist_append(
 924                                         devc->enabled_channels, ch);
 925                         }
 926                         /* Enabled channel is currently disabled, or vice versa. */
 927                         if (siglent_sds_config_set(sdi, "D%d:DGCH %s", ch->index,
 928                                 ch->enabled ? "ON" : "OFF") != SR_OK)
 929                                 return SR_ERR;
 930                         /* Slowing the command sequence down to let the device handle it. */
 931                         g_usleep(630000);
 932                         devc->digital_channels[ch->index] = ch->enabled;
 933                 }
 934         }
 935         if (!devc->enabled_channels)
 936                 return SR_ERR;
 937         /* Turn off LA module if on and no digital channels selected. */
 938         if (devc->la_enabled && !some_digital)
 939                 if (siglent_sds_config_set(sdi, "DGST OFF") != SR_OK) {
 940                         devc->la_enabled = FALSE;
 941                         g_usleep(500000);
 942                         return SR_ERR;
 943                 }
 944
 945         // devc->analog_frame_size = devc->model->series->buffer_samples;
 946         // devc->digital_frame_size = devc->model->series->buffer_samples;
 947
 948         switch (devc->model->series->protocol) {
 949         case SPO_MODEL:
 950                 if (siglent_sds_config_set(sdi, "WFSU SP,0,TYPE,1") != SR_OK)
 951                         return SR_ERR;
 952                 if (siglent_sds_config_set(sdi, "ACQW SAMPLING") != SR_OK)
 953                         return SR_ERR;
 954                 break;
 955         case NON_SPO_MODEL:
 956                 /* TODO: Implement CML/CNL/DL models. */
 957                 if (siglent_sds_config_set(sdi, "WFSU SP,0,TYPE,1") != SR_OK)
 958                         return SR_ERR;
 959                 if (siglent_sds_config_set(sdi, "ACQW SAMPLING") != SR_OK)
 960                         return SR_ERR;
 961                 break;
 962         default:
 963                 break;
 964         }
 965
 966         sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
 967                 siglent_sds_receive, (void *) sdi);
 968
 969         std_session_send_df_header(sdi);
 970
 971         devc->channel_entry = devc->enabled_channels;
 972
 973         if (siglent_sds_capture_start(sdi) != SR_OK)
 974                 return SR_ERR;
 975
 976         /* Start of first frame. */
 977         packet.type = SR_DF_FRAME_BEGIN;
 978         sr_session_send(sdi, &packet);
 979
 980         return SR_OK;
 981 }
 982
 983 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 984 {
 985         struct dev_context *devc;
 986         struct sr_scpi_dev_inst *scpi;
 987
 988         devc = sdi->priv;
 989
 990         if (sdi->status != SR_ST_ACTIVE) {
 991                 sr_err("Device inactive, can't stop acquisition.");
 992                 return SR_ERR;
 993         }
 994
 995         std_session_send_df_end(sdi);
 996
 997         g_slist_free(devc->enabled_channels);
 998         devc->enabled_channels = NULL;
 999         scpi = sdi->conn;
1000         sr_scpi_source_remove(sdi->session, scpi);
1001
1002         return SR_OK;
1003 }
1004
1005 SR_PRIV struct sr_dev_driver siglent_sds_driver_info = {
1006         .name = "siglent-sds",
1007         .longname = "Siglent SDS1000/SDS2000",
1008         .api_version = 1,
1009         .init = std_init,
1010         .cleanup = std_cleanup,
1011         .scan = scan,
1012         .dev_list = std_dev_list,
1013         .dev_clear = dev_clear,
1014         .config_get = config_get,
1015         .config_set = config_set,
1016         .config_list = config_list,
1017         .dev_open = dev_open,
1018         .dev_close = dev_close,
1019         .dev_acquisition_start = dev_acquisition_start,
1020         .dev_acquisition_stop = dev_acquisition_stop,
1021         .context = NULL,
1022 };
1023
1024 SR_REGISTER_DEV_DRIVER(siglent_sds_driver_info);