src/hardware/kingst-la2016/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
   5  * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
   6  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
   7  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   8  *
   9  * This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 /*
  24  * This driver implementation initially was derived from the
  25  * src/hardware/saleae-logic16/ source code.
  26  */
  27
  28 #include <config.h>
  29
  30 #include <libsigrok/libsigrok.h>
  31 #include <string.h>
  32
  33 #include "libsigrok-internal.h"
  34 #include "protocol.h"
  35
  36 static const uint32_t scanopts[] = {
  37         SR_CONF_CONN,
  38 };
  39
  40 static const uint32_t drvopts[] = {
  41         SR_CONF_LOGIC_ANALYZER,
  42 };
  43
  44 static const uint32_t devopts[] = {
  45         /* TODO: SR_CONF_CONTINUOUS, */
  46         SR_CONF_CONN | SR_CONF_GET,
  47         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  48         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET | SR_CONF_LIST,
  49         SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  50         SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  51         SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET,
  52         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
  53         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
  54 };
  55
  56 static const int32_t trigger_matches[] = {
  57         SR_TRIGGER_ZERO,
  58         SR_TRIGGER_ONE,
  59         SR_TRIGGER_RISING,
  60         SR_TRIGGER_FALLING,
  61 };
  62
  63 static const char *channel_names[] = {
  64         "CH0", "CH1", "CH2", "CH3", "CH4", "CH5", "CH6", "CH7",
  65         "CH8", "CH9", "CH10", "CH11", "CH12", "CH13", "CH14", "CH15",
  66 };
  67
  68 /*
  69  * The hardware uses a (model dependent) 100/200/500MHz base clock and
  70  * a 16bit divider (common across all models). The range from 10kHz to
  71  * 100/200/500MHz should be applicable to all devices. High rates may
  72  * suffer from coarse resolution (e.g. in the "500MHz div 2" case) and
  73  * may not provide the desired 1/2/5 steps. This is not an issue now,
  74  * the 500MHz model is not supported yet by this driver.
  75  */
  76
  77 static const uint64_t samplerates_la2016[] = {
  78         SR_KHZ(10),
  79         SR_KHZ(20),
  80         SR_KHZ(50),
  81         SR_KHZ(100),
  82         SR_KHZ(200),
  83         SR_KHZ(500),
  84         SR_MHZ(1),
  85         SR_MHZ(2),
  86         SR_MHZ(4),
  87         SR_MHZ(5),
  88         SR_MHZ(8),
  89         SR_MHZ(10),
  90         SR_MHZ(20),
  91         SR_MHZ(50),
  92         SR_MHZ(100),
  93         SR_MHZ(200),
  94 };
  95
  96 static const uint64_t samplerates_la1016[] = {
  97         SR_KHZ(10),
  98         SR_KHZ(20),
  99         SR_KHZ(50),
 100         SR_KHZ(100),
 101         SR_KHZ(200),
 102         SR_KHZ(500),
 103         SR_MHZ(1),
 104         SR_MHZ(2),
 105         SR_MHZ(4),
 106         SR_MHZ(5),
 107         SR_MHZ(8),
 108         SR_MHZ(10),
 109         SR_MHZ(20),
 110         SR_MHZ(50),
 111         SR_MHZ(100),
 112 };
 113
 114 static const float logic_threshold_value[] = {
 115         1.58,
 116         2.5,
 117         1.165,
 118         1.5,
 119         1.25,
 120         0.9,
 121         0.75,
 122         0.60,
 123         0.45,
 124 };
 125
 126 static const char *logic_threshold[] = {
 127         "TTL 5V",
 128         "CMOS 5V",
 129         "CMOS 3.3V",
 130         "CMOS 3.0V",
 131         "CMOS 2.5V",
 132         "CMOS 1.8V",
 133         "CMOS 1.5V",
 134         "CMOS 1.2V",
 135         "CMOS 0.9V",
 136         "USER",
 137 };
 138
 139 #define LOGIC_THRESHOLD_IDX_USER        (ARRAY_SIZE(logic_threshold) - 1)
 140
 141 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 142 {
 143         struct drv_context *drvc;
 144         struct sr_context *ctx;
 145         struct dev_context *devc;
 146         struct sr_dev_inst *sdi;
 147         struct sr_usb_dev_inst *usb;
 148         struct sr_config *src;
 149         GSList *l;
 150         GSList *devices;
 151         GSList *conn_devices;
 152         struct libusb_device_descriptor des;
 153         libusb_device **devlist, *dev;
 154         size_t dev_count, dev_idx, ch_idx;
 155         uint8_t bus, addr;
 156         const char *conn;
 157         char conn_id[64];
 158         uint64_t fw_uploaded;
 159         int ret;
 160
 161         drvc = di->context;
 162         ctx = drvc->sr_ctx;;
 163
 164         conn = NULL;
 165         for (l = options; l; l = l->next) {
 166                 src = l->data;
 167                 switch (src->key) {
 168                 case SR_CONF_CONN:
 169                         conn = g_variant_get_string(src->data, NULL);
 170                         break;
 171                 }
 172         }
 173         if (conn)
 174                 conn_devices = sr_usb_find(ctx->libusb_ctx, conn);
 175         else
 176                 conn_devices = NULL;
 177
 178         /* Find all LA2016 devices, optionally upload firmware to them. */
 179         devices = NULL;
 180         ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
 181         if (ret < 0) {
 182                 sr_err("Cannot get device list: %s.", libusb_error_name(ret));
 183                 return devices;
 184         }
 185         dev_count = ret;
 186         for (dev_idx = 0; dev_idx < dev_count; dev_idx++) {
 187                 dev = devlist[dev_idx];
 188                 bus = libusb_get_bus_number(dev);
 189                 addr = libusb_get_device_address(dev);
 190                 if (conn) {
 191                         usb = NULL;
 192                         for (l = conn_devices; l; l = l->next) {
 193                                 usb = l->data;
 194                                 if (usb->bus == bus && usb->address == addr)
 195                                         break;
 196                         }
 197                         if (!l) {
 198                                 /*
 199                                  * A connection parameter was specified and
 200                                  * this device does not match the filter.
 201                                  */
 202                                 continue;
 203                         }
 204                 }
 205
 206                 libusb_get_device_descriptor(dev, &des);
 207                 ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
 208                 if (ret < 0)
 209                         continue;
 210                 if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
 211                         continue;
 212
 213                 /* USB identification matches, a device was found. */
 214                 sr_dbg("Found a device (USB identification).");
 215                 sdi = g_malloc0(sizeof(*sdi));
 216                 sdi->status = SR_ST_INITIALIZING;
 217                 sdi->connection_id = g_strdup(conn_id);
 218
 219                 fw_uploaded = 0;
 220                 if (des.iProduct != LA2016_IPRODUCT_INDEX) {
 221                         sr_info("Device at '%s' has no firmware loaded.",
 222                                 conn_id);
 223
 224                         ret = la2016_upload_firmware(ctx, dev, des.idProduct);
 225                         if (ret != SR_OK) {
 226                                 sr_err("MCU firmware upload failed.");
 227                                 g_free(sdi->connection_id);
 228                                 g_free(sdi);
 229                                 continue;
 230                         }
 231                         fw_uploaded = g_get_monotonic_time();
 232                         /* Will re-enumerate. Mark as "unknown address yet". */
 233                         addr = 0xff;
 234                 }
 235
 236                 sdi->vendor = g_strdup("Kingst");
 237                 sdi->model = g_strdup("LA2016");
 238
 239                 for (ch_idx = 0; ch_idx < ARRAY_SIZE(channel_names); ch_idx++) {
 240                         sr_channel_new(sdi, ch_idx, SR_CHANNEL_LOGIC,
 241                                 TRUE, channel_names[ch_idx]);
 242                 }
 243
 244                 devices = g_slist_append(devices, sdi);
 245
 246                 devc = g_malloc0(sizeof(*devc));
 247                 sdi->priv = devc;
 248                 devc->fw_uploaded = fw_uploaded;
 249                 devc->threshold_voltage_idx = 0;
 250                 devc->threshold_voltage = logic_threshold_value[devc->threshold_voltage_idx];
 251
 252                 sdi->status = SR_ST_INACTIVE;
 253                 sdi->inst_type = SR_INST_USB;
 254
 255                 sdi->conn = sr_usb_dev_inst_new(bus, addr, NULL);
 256         }
 257         libusb_free_device_list(devlist, 1);
 258         g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
 259
 260         return std_scan_complete(di, devices);
 261 }
 262
 263 static int la2016_dev_open(struct sr_dev_inst *sdi)
 264 {
 265         struct sr_dev_driver *di;
 266         struct drv_context *drvc;
 267         struct sr_context *ctx;
 268         libusb_device **devlist, *dev;
 269         struct sr_usb_dev_inst *usb;
 270         struct libusb_device_descriptor des;
 271         int ret;
 272         size_t device_count, dev_idx;
 273         gboolean check_conn;
 274         char conn_id[64];
 275
 276         di = sdi->driver;
 277         drvc = di->context;
 278         ctx = drvc->sr_ctx;;
 279         usb = sdi->conn;
 280         ret = SR_ERR;
 281
 282         ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
 283         if (ret < 0) {
 284                 sr_err("Cannot get device list: %s.", libusb_error_name(ret));
 285                 return SR_ERR;
 286         }
 287         device_count = ret;
 288         if (!device_count) {
 289                 sr_warn("Device list is empty. Cannot open.");
 290                 return SR_ERR;
 291         }
 292         for (dev_idx = 0; dev_idx < device_count; dev_idx++) {
 293                 dev = devlist[dev_idx];
 294                 libusb_get_device_descriptor(dev, &des);
 295
 296                 if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
 297                         continue;
 298                 if (des.iProduct != LA2016_IPRODUCT_INDEX)
 299                         continue;
 300
 301                 check_conn = sdi->status == SR_ST_INITIALIZING;
 302                 check_conn |= sdi->status == SR_ST_INACTIVE;
 303                 if (check_conn) {
 304                         /* Check physical USB bus/port address. */
 305                         ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
 306                         if (ret < 0)
 307                                 continue;
 308                         if (strcmp(sdi->connection_id, conn_id) != 0) {
 309                                 /* Not the device we looked up before. */
 310                                 continue;
 311                         }
 312                 }
 313
 314                 ret = libusb_open(dev, &usb->devhdl);
 315                 if (ret != 0) {
 316                         sr_err("Cannot open device: %s.",
 317                                 libusb_error_name(ret));
 318                         ret = SR_ERR_IO;
 319                         break;
 320                 }
 321
 322                 if (usb->address == 0xff) {
 323                         /*
 324                          * First encounter after firmware upload.
 325                          * Grab current address after enumeration.
 326                          */
 327                         usb->address = libusb_get_device_address(dev);
 328                 }
 329
 330                 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 331                 if (ret == LIBUSB_ERROR_BUSY) {
 332                         sr_err("Cannot claim USB interface. Another program or driver using it?");
 333                         ret = SR_ERR;
 334                         break;
 335                 } else if (ret == LIBUSB_ERROR_NO_DEVICE) {
 336                         sr_err("Device has been disconnected.");
 337                         ret = SR_ERR;
 338                         break;
 339                 } else if (ret != 0) {
 340                         sr_err("Cannot claim USB interface: %s.",
 341                                 libusb_error_name(ret));
 342                         ret = SR_ERR;
 343                         break;
 344                 }
 345
 346                 if ((ret = la2016_init_device(sdi)) != SR_OK) {
 347                         sr_err("Cannot initialize device.");
 348                         break;
 349                 }
 350
 351                 sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.",
 352                         usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 353                 ret = SR_OK;
 354                 break;
 355         }
 356         libusb_free_device_list(devlist, 1);
 357
 358         if (ret != SR_OK) {
 359                 if (usb->devhdl) {
 360                         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 361                         libusb_close(usb->devhdl);
 362                         usb->devhdl = NULL;
 363                 }
 364                 return ret;
 365         }
 366
 367         return SR_OK;
 368 }
 369
 370 static int dev_open(struct sr_dev_inst *sdi)
 371 {
 372         struct dev_context *devc;
 373         uint64_t reset_done, now, elapsed_ms;
 374         int ret;
 375
 376         devc = sdi->priv;
 377
 378         /*
 379          * When the sigrok driver recently has uploaded MCU firmware,
 380          * then wait for the FX2 to re-enumerate. Allow the USB device
 381          * to vanish before it reappears. Timeouts are rough estimates
 382          * after all, the imprecise time of the last check (potentially
 383          * executes after the total check period) simplifies code paths
 384          * with optional diagnostics. And increases the probability of
 385          * successfully detecting "late/slow" devices.
 386          */
 387         if (devc->fw_uploaded) {
 388                 sr_info("Waiting for device to reset after firmware upload.");
 389                 now = g_get_monotonic_time();
 390                 reset_done = devc->fw_uploaded + RENUM_GONE_DELAY_MS * 1000;
 391                 if (now < reset_done)
 392                         g_usleep(reset_done - now);
 393                 do {
 394                         now = g_get_monotonic_time();
 395                         elapsed_ms = (now - devc->fw_uploaded) / 1000;
 396                         sr_spew("Waited %" PRIu64 "ms.", elapsed_ms);
 397                         ret = la2016_dev_open(sdi);
 398                         if (ret == SR_OK) {
 399                                 devc->fw_uploaded = 0;
 400                                 break;
 401                         }
 402                         g_usleep(RENUM_POLL_INTERVAL_MS * 1000);
 403                 } while (elapsed_ms < RENUM_CHECK_PERIOD_MS);
 404                 if (ret != SR_OK) {
 405                         sr_err("Device failed to re-enumerate.");
 406                         return ret;
 407                 }
 408                 sr_info("Device came back after %" PRIi64 "ms.", elapsed_ms);
 409         } else {
 410                 ret = la2016_dev_open(sdi);
 411         }
 412
 413         if (ret != SR_OK) {
 414                 sr_err("Cannot open device.");
 415                 return ret;
 416         }
 417
 418         return SR_OK;
 419 }
 420
 421 static int dev_close(struct sr_dev_inst *sdi)
 422 {
 423         struct sr_usb_dev_inst *usb;
 424
 425         usb = sdi->conn;
 426
 427         if (!usb->devhdl)
 428                 return SR_ERR_BUG;
 429
 430         la2016_deinit_device(sdi);
 431
 432         sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
 433                 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 434         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 435         libusb_close(usb->devhdl);
 436         usb->devhdl = NULL;
 437
 438         return SR_OK;
 439 }
 440
 441 static int config_get(uint32_t key, GVariant **data,
 442         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 443 {
 444         struct dev_context *devc;
 445         struct sr_usb_dev_inst *usb;
 446         double rounded;
 447         const char *label;
 448
 449         (void)cg;
 450
 451         if (!sdi)
 452                 return SR_ERR_ARG;
 453         devc = sdi->priv;
 454
 455         switch (key) {
 456         case SR_CONF_CONN:
 457                 if (!sdi->conn)
 458                         return SR_ERR_ARG;
 459                 usb = sdi->conn;
 460                 if (usb->address == 0xff) {
 461                         /*
 462                          * Device still needs to re-enumerate after firmware
 463                          * upload, so we don't know its (future) address.
 464                          */
 465                         return SR_ERR;
 466                 }
 467                 *data = g_variant_new_printf("%d.%d", usb->bus, usb->address);
 468                 break;
 469         case SR_CONF_SAMPLERATE:
 470                 *data = g_variant_new_uint64(devc->cur_samplerate);
 471                 break;
 472         case SR_CONF_LIMIT_SAMPLES:
 473                 *data = g_variant_new_uint64(devc->limit_samples);
 474                 break;
 475         case SR_CONF_CAPTURE_RATIO:
 476                 *data = g_variant_new_uint64(devc->capture_ratio);
 477                 break;
 478         case SR_CONF_VOLTAGE_THRESHOLD:
 479                 rounded = (int)(devc->threshold_voltage / 0.1) * 0.1;
 480                 *data = std_gvar_tuple_double(rounded, rounded + 0.1);
 481                 return SR_OK;
 482         case SR_CONF_LOGIC_THRESHOLD:
 483                 label = logic_threshold[devc->threshold_voltage_idx];
 484                 *data = g_variant_new_string(label);
 485                 break;
 486         case SR_CONF_LOGIC_THRESHOLD_CUSTOM:
 487                 *data = g_variant_new_double(devc->threshold_voltage);
 488                 break;
 489
 490         default:
 491                 return SR_ERR_NA;
 492         }
 493
 494         return SR_OK;
 495 }
 496
 497 static int config_set(uint32_t key, GVariant *data,
 498         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 499 {
 500         struct dev_context *devc;
 501         double low, high;
 502         int idx;
 503
 504         (void)cg;
 505
 506         devc = sdi->priv;
 507
 508         switch (key) {
 509         case SR_CONF_SAMPLERATE:
 510                 devc->cur_samplerate = g_variant_get_uint64(data);
 511                 break;
 512         case SR_CONF_LIMIT_SAMPLES:
 513                 devc->limit_samples = g_variant_get_uint64(data);
 514                 break;
 515         case SR_CONF_CAPTURE_RATIO:
 516                 devc->capture_ratio = g_variant_get_uint64(data);
 517                 break;
 518         case SR_CONF_VOLTAGE_THRESHOLD:
 519                 g_variant_get(data, "(dd)", &low, &high);
 520                 devc->threshold_voltage = (low + high) / 2.0;
 521                 devc->threshold_voltage_idx = LOGIC_THRESHOLD_IDX_USER;
 522                 break;
 523         case SR_CONF_LOGIC_THRESHOLD: {
 524                 idx = std_str_idx(data, ARRAY_AND_SIZE(logic_threshold));
 525                 if (idx < 0)
 526                         return SR_ERR_ARG;
 527                 if (idx != LOGIC_THRESHOLD_IDX_USER) {
 528                         devc->threshold_voltage = logic_threshold_value[idx];
 529                 }
 530                 devc->threshold_voltage_idx = idx;
 531                 break;
 532         }
 533         case SR_CONF_LOGIC_THRESHOLD_CUSTOM:
 534                 devc->threshold_voltage = g_variant_get_double(data);
 535                 break;
 536         default:
 537                 return SR_ERR_NA;
 538         }
 539
 540         return SR_OK;
 541 }
 542
 543 static int config_list(uint32_t key, GVariant **data,
 544         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 545 {
 546         struct dev_context *devc;
 547
 548         switch (key) {
 549         case SR_CONF_SCAN_OPTIONS:
 550         case SR_CONF_DEVICE_OPTIONS:
 551                 return STD_CONFIG_LIST(key, data, sdi, cg,
 552                         scanopts, drvopts, devopts);
 553         case SR_CONF_SAMPLERATE:
 554                 if (!sdi)
 555                         return SR_ERR_ARG;
 556                 devc = sdi->priv;
 557                 if (devc->max_samplerate == SR_MHZ(200)) {
 558                         *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la2016));
 559                 } else {
 560                         *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la1016));
 561                 }
 562                 break;
 563         case SR_CONF_LIMIT_SAMPLES:
 564                 *data = std_gvar_tuple_u64(LA2016_NUM_SAMPLES_MIN,
 565                         LA2016_NUM_SAMPLES_MAX);
 566                 break;
 567         case SR_CONF_VOLTAGE_THRESHOLD:
 568                 *data = std_gvar_min_max_step_thresholds(
 569                         LA2016_THR_VOLTAGE_MIN,
 570                         LA2016_THR_VOLTAGE_MAX, 0.1);
 571                 break;
 572         case SR_CONF_TRIGGER_MATCH:
 573                 *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
 574                 break;
 575         case SR_CONF_LOGIC_THRESHOLD:
 576                 *data = g_variant_new_strv(ARRAY_AND_SIZE(logic_threshold));
 577                 break;
 578         default:
 579                 return SR_ERR_NA;
 580         }
 581
 582         return SR_OK;
 583 }
 584
 585 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 586 {
 587         struct sr_dev_driver *di;
 588         struct drv_context *drvc;
 589         struct sr_context *ctx;
 590         struct dev_context *devc;
 591         int ret;
 592
 593         di = sdi->driver;
 594         drvc = di->context;
 595         ctx = drvc->sr_ctx;;
 596         devc = sdi->priv;
 597
 598         devc->convbuffer_size = LA2016_CONVBUFFER_SIZE;
 599         devc->convbuffer = g_try_malloc(devc->convbuffer_size);
 600         if (!devc->convbuffer) {
 601                 sr_err("Cannot allocate conversion buffer.");
 602                 return SR_ERR_MALLOC;
 603         }
 604
 605         ret = la2016_setup_acquisition(sdi);
 606         if (ret != SR_OK) {
 607                 g_free(devc->convbuffer);
 608                 devc->convbuffer = NULL;
 609                 return ret;
 610         }
 611
 612         ret = la2016_start_acquisition(sdi);
 613         if (ret != SR_OK) {
 614                 la2016_abort_acquisition(sdi);
 615                 g_free(devc->convbuffer);
 616                 devc->convbuffer = NULL;
 617                 return ret;
 618         }
 619
 620         devc->completion_seen = FALSE;
 621         usb_source_add(sdi->session, ctx, 50,
 622                 la2016_receive_data, (void *)sdi);
 623
 624         std_session_send_df_header(sdi);
 625
 626         return SR_OK;
 627 }
 628
 629 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 630 {
 631         int ret;
 632
 633         ret = la2016_abort_acquisition(sdi);
 634
 635         return ret;
 636 }
 637
 638 static struct sr_dev_driver kingst_la2016_driver_info = {
 639         .name = "kingst-la2016",
 640         .longname = "Kingst LA2016",
 641         .api_version = 1,
 642         .init = std_init,
 643         .cleanup = std_cleanup,
 644         .scan = scan,
 645         .dev_list = std_dev_list,
 646         .dev_clear = std_dev_clear,
 647         .config_get = config_get,
 648         .config_set = config_set,
 649         .config_list = config_list,
 650         .dev_open = dev_open,
 651         .dev_close = dev_close,
 652         .dev_acquisition_start = dev_acquisition_start,
 653         .dev_acquisition_stop = dev_acquisition_stop,
 654         .context = NULL,
 655 };
 656 SR_REGISTER_DEV_DRIVER(kingst_la2016_driver_info);