src/hardware/zeroplus-logic-cube/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include "protocol.h"
  22
  23 #define USB_INTERFACE                   0
  24 #define USB_CONFIGURATION               1
  25 #define NUM_TRIGGER_STAGES              4
  26 #define PACKET_SIZE                     2048    /* ?? */
  27
  28 //#define ZP_EXPERIMENTAL
  29
  30 struct zp_model {
  31         uint16_t vid;
  32         uint16_t pid;
  33         const char *model_name;
  34         unsigned int channels;
  35         unsigned int sample_depth;      /* In Ksamples/channel */
  36         unsigned int max_sampling_freq;
  37 };
  38
  39 /*
  40  * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the
  41  * same 128K sample depth.
  42  */
  43 static const struct zp_model zeroplus_models[] = {
  44         {0x0c12, 0x7002, "LAP-16128U",    16, 128,  200},
  45         {0x0c12, 0x7009, "LAP-C(16064)",  16, 64,   100},
  46         {0x0c12, 0x700a, "LAP-C(16128)",  16, 128,  200},
  47         {0x0c12, 0x700b, "LAP-C(32128)",  32, 128,  200},
  48         {0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200},
  49         {0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200},
  50         {0x0c12, 0x700e, "LAP-C(16032)",  16, 32,   100},
  51         {0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200},
  52         {0x0c12, 0x7100, "AKIP-9101", 16, 256, 200},
  53         ALL_ZERO
  54 };
  55
  56 static const uint32_t drvopts[] = {
  57         SR_CONF_LOGIC_ANALYZER,
  58 };
  59
  60 static const uint32_t devopts[] = {
  61         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST,
  62         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  63         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
  64         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
  65         SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  66 };
  67
  68 static const int32_t trigger_matches[] = {
  69         SR_TRIGGER_ZERO,
  70         SR_TRIGGER_ONE,
  71 };
  72
  73 /*
  74  * ZEROPLUS LAP-C (16032) numbers the 16 channels A0-A7 and B0-B7.
  75  * We currently ignore other untested/unsupported devices here.
  76  */
  77 static const char *channel_names[] = {
  78         "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
  79         "B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7",
  80         "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7",
  81         "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
  82 };
  83
  84 /*
  85  * The hardware supports more samplerates than these, but these are the
  86  * options hardcoded into the vendor's Windows GUI.
  87  */
  88
  89 static const uint64_t samplerates_100[] = {
  90         SR_HZ(100),
  91         SR_HZ(500),
  92         SR_KHZ(1),
  93         SR_KHZ(5),
  94         SR_KHZ(25),
  95         SR_KHZ(50),
  96         SR_KHZ(100),
  97         SR_KHZ(200),
  98         SR_KHZ(400),
  99         SR_KHZ(800),
 100         SR_MHZ(1),
 101         SR_MHZ(10),
 102         SR_MHZ(25),
 103         SR_MHZ(50),
 104         SR_MHZ(80),
 105         SR_MHZ(100),
 106 };
 107
 108 const uint64_t samplerates_200[] = {
 109         SR_HZ(100),
 110         SR_HZ(500),
 111         SR_KHZ(1),
 112         SR_KHZ(5),
 113         SR_KHZ(25),
 114         SR_KHZ(50),
 115         SR_KHZ(100),
 116         SR_KHZ(200),
 117         SR_KHZ(400),
 118         SR_KHZ(800),
 119         SR_MHZ(1),
 120         SR_MHZ(10),
 121         SR_MHZ(25),
 122         SR_MHZ(50),
 123         SR_MHZ(80),
 124         SR_MHZ(100),
 125         SR_MHZ(150),
 126         SR_MHZ(200),
 127 };
 128
 129 SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate)
 130 {
 131         int i;
 132
 133         for (i = 0; ARRAY_SIZE(samplerates_200); i++)
 134                 if (samplerate == samplerates_200[i])
 135                         break;
 136
 137         if (i == ARRAY_SIZE(samplerates_200) || samplerate > devc->max_samplerate) {
 138                 sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate);
 139                 return SR_ERR_ARG;
 140         }
 141
 142         sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate);
 143
 144         if (samplerate >= SR_MHZ(1))
 145                 analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ);
 146         else if (samplerate >= SR_KHZ(1))
 147                 analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ);
 148         else
 149                 analyzer_set_freq(samplerate, FREQ_SCALE_HZ);
 150
 151         devc->cur_samplerate = samplerate;
 152
 153         return SR_OK;
 154 }
 155
 156 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 157 {
 158         struct sr_dev_inst *sdi;
 159         struct drv_context *drvc;
 160         struct dev_context *devc;
 161         const struct zp_model *prof;
 162         struct libusb_device_descriptor des;
 163         struct libusb_device_handle *hdl;
 164         libusb_device **devlist;
 165         GSList *devices;
 166         int ret, i, j;
 167         char serial_num[64], connection_id[64];
 168
 169         (void)options;
 170
 171         drvc = di->context;
 172
 173         devices = NULL;
 174
 175         /* Find all ZEROPLUS analyzers and add them to device list. */
 176         libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */
 177
 178         for (i = 0; devlist[i]; i++) {
 179                 libusb_get_device_descriptor(devlist[i], &des);
 180
 181                 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
 182                         continue;
 183
 184                 if (des.iSerialNumber == 0) {
 185                         serial_num[0] = '\0';
 186                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 187                                 des.iSerialNumber, (unsigned char *) serial_num,
 188                                 sizeof(serial_num))) < 0) {
 189                         sr_warn("Failed to get serial number string descriptor: %s.",
 190                                 libusb_error_name(ret));
 191                         continue;
 192                 }
 193
 194                 libusb_close(hdl);
 195
 196                 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
 197
 198                 prof = NULL;
 199                 for (j = 0; j < zeroplus_models[j].vid; j++) {
 200                         if (des.idVendor == zeroplus_models[j].vid &&
 201                                 des.idProduct == zeroplus_models[j].pid) {
 202                                 prof = &zeroplus_models[j];
 203                         }
 204                 }
 205
 206                 if (!prof)
 207                         continue;
 208                 sr_info("Found ZEROPLUS %s.", prof->model_name);
 209
 210                 sdi = g_malloc0(sizeof(struct sr_dev_inst));
 211                 sdi->status = SR_ST_INACTIVE;
 212                 sdi->vendor = g_strdup("ZEROPLUS");
 213                 sdi->model = g_strdup(prof->model_name);
 214                 sdi->serial_num = g_strdup(serial_num);
 215                 sdi->connection_id = g_strdup(connection_id);
 216
 217                 devc = g_malloc0(sizeof(struct dev_context));
 218                 sdi->priv = devc;
 219                 devc->prof = prof;
 220                 devc->num_channels = prof->channels;
 221 #ifdef ZP_EXPERIMENTAL
 222                 devc->max_sample_depth = 128 * 1024;
 223                 devc->max_samplerate = 200;
 224 #else
 225                 devc->max_sample_depth = prof->sample_depth * 1024;
 226                 devc->max_samplerate = prof->max_sampling_freq;
 227 #endif
 228                 devc->max_samplerate *= SR_MHZ(1);
 229                 devc->memory_size = MEMORY_SIZE_8K;
 230                 // memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES);
 231
 232                 for (j = 0; j < devc->num_channels; j++)
 233                         sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
 234                                         channel_names[j]);
 235
 236                 devices = g_slist_append(devices, sdi);
 237                 sdi->inst_type = SR_INST_USB;
 238                 sdi->conn = sr_usb_dev_inst_new(
 239                         libusb_get_bus_number(devlist[i]),
 240                         libusb_get_device_address(devlist[i]), NULL);
 241         }
 242         libusb_free_device_list(devlist, 1);
 243
 244         return std_scan_complete(di, devices);
 245 }
 246
 247 static int dev_open(struct sr_dev_inst *sdi)
 248 {
 249         struct sr_dev_driver *di = sdi->driver;
 250         struct dev_context *devc;
 251         struct drv_context *drvc;
 252         struct sr_usb_dev_inst *usb;
 253         int ret;
 254
 255         drvc = di->context;
 256         usb = sdi->conn;
 257         devc = sdi->priv;
 258
 259         ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
 260         if (ret != SR_OK)
 261                 return ret;
 262
 263         ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION);
 264         if (ret < 0) {
 265                 sr_err("Unable to set USB configuration %d: %s.",
 266                        USB_CONFIGURATION, libusb_error_name(ret));
 267                 return SR_ERR;
 268         }
 269
 270         ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 271         if (ret != 0) {
 272                 sr_err("Unable to claim interface: %s.",
 273                        libusb_error_name(ret));
 274                 return SR_ERR;
 275         }
 276
 277         /* Set default configuration after power on. */
 278         if (analyzer_read_status(usb->devhdl) == 0)
 279                 analyzer_configure(usb->devhdl);
 280
 281         analyzer_reset(usb->devhdl);
 282         analyzer_initialize(usb->devhdl);
 283
 284         //analyzer_set_memory_size(MEMORY_SIZE_512K);
 285         // analyzer_set_freq(g_freq, g_freq_scale);
 286         analyzer_set_trigger_count(1);
 287         // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
 288         // * get_memory_size(g_memory_size)) / 100) >> 2);
 289
 290 #if 0
 291         if (g_double_mode == 1)
 292                 analyzer_set_compression(COMPRESSION_DOUBLE);
 293         else if (g_compression == 1)
 294                 analyzer_set_compression(COMPRESSION_ENABLE);
 295         else
 296 #endif
 297         analyzer_set_compression(COMPRESSION_NONE);
 298
 299         if (devc->cur_samplerate == 0) {
 300                 /* Samplerate hasn't been set. Default to 1MHz. */
 301                 analyzer_set_freq(1, FREQ_SCALE_MHZ);
 302                 devc->cur_samplerate = SR_MHZ(1);
 303         }
 304
 305         if (devc->cur_threshold == 0)
 306                 set_voltage_threshold(devc, 1.5);
 307
 308         return SR_OK;
 309 }
 310
 311 static int dev_close(struct sr_dev_inst *sdi)
 312 {
 313         struct sr_usb_dev_inst *usb;
 314
 315         usb = sdi->conn;
 316
 317         if (!usb->devhdl)
 318                 return SR_ERR_BUG;
 319
 320         sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
 321                 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 322         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 323         libusb_reset_device(usb->devhdl);
 324         libusb_close(usb->devhdl);
 325         usb->devhdl = NULL;
 326
 327         return SR_OK;
 328 }
 329
 330 static int config_get(uint32_t key, GVariant **data,
 331         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 332 {
 333         struct dev_context *devc;
 334
 335         (void)cg;
 336
 337         if (!sdi)
 338                 return SR_ERR_ARG;
 339
 340         devc = sdi->priv;
 341
 342         switch (key) {
 343         case SR_CONF_SAMPLERATE:
 344                 *data = g_variant_new_uint64(devc->cur_samplerate);
 345                 break;
 346         case SR_CONF_CAPTURE_RATIO:
 347                 *data = g_variant_new_uint64(devc->capture_ratio);
 348                 break;
 349         case SR_CONF_VOLTAGE_THRESHOLD:
 350                 *data = std_gvar_tuple_double(devc->cur_threshold, devc->cur_threshold);
 351                 break;
 352         default:
 353                 return SR_ERR_NA;
 354         }
 355
 356         return SR_OK;
 357 }
 358
 359 static int config_set(uint32_t key, GVariant *data,
 360         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 361 {
 362         struct dev_context *devc;
 363         gdouble low, high;
 364
 365         (void)cg;
 366
 367         devc = sdi->priv;
 368
 369         switch (key) {
 370         case SR_CONF_SAMPLERATE:
 371                 return zp_set_samplerate(devc, g_variant_get_uint64(data));
 372         case SR_CONF_LIMIT_SAMPLES:
 373                 return set_limit_samples(devc, g_variant_get_uint64(data));
 374         case SR_CONF_CAPTURE_RATIO:
 375                 devc->capture_ratio = g_variant_get_uint64(data);
 376                 break;
 377         case SR_CONF_VOLTAGE_THRESHOLD:
 378                 g_variant_get(data, "(dd)", &low, &high);
 379                 return set_voltage_threshold(devc, (low + high) / 2.0);
 380         default:
 381                 return SR_ERR_NA;
 382         }
 383
 384         return SR_OK;
 385 }
 386
 387 static int config_list(uint32_t key, GVariant **data,
 388         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 389 {
 390         struct dev_context *devc;
 391
 392         switch (key) {
 393         case SR_CONF_DEVICE_OPTIONS:
 394                 return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
 395         case SR_CONF_SAMPLERATE:
 396                 devc = sdi->priv;
 397                 if (devc->prof->max_sampling_freq == 100)
 398                         *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_100));
 399                 else if (devc->prof->max_sampling_freq == 200)
 400                         *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_200));
 401                 else {
 402                         sr_err("Internal error: Unknown max. samplerate: %d.",
 403                                devc->prof->max_sampling_freq);
 404                         return SR_ERR_ARG;
 405                 }
 406                 break;
 407         case SR_CONF_TRIGGER_MATCH:
 408                 *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
 409                 break;
 410         case SR_CONF_VOLTAGE_THRESHOLD:
 411                 *data = std_gvar_min_max_step_thresholds(-6.0, 6.0, 0.1);
 412                 break;
 413         case SR_CONF_LIMIT_SAMPLES:
 414                 if (!sdi)
 415                         return SR_ERR_ARG;
 416                 devc = sdi->priv;
 417                 *data = std_gvar_tuple_u64(0, devc->max_sample_depth);
 418                 break;
 419         default:
 420                 return SR_ERR_NA;
 421         }
 422
 423         return SR_OK;
 424 }
 425
 426 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 427 {
 428         struct dev_context *devc;
 429         struct sr_usb_dev_inst *usb;
 430         struct sr_datafeed_packet packet;
 431         struct sr_datafeed_logic logic;
 432         unsigned int samples_read;
 433         int res;
 434         unsigned int packet_num, n;
 435         unsigned char *buf;
 436         unsigned int status;
 437         unsigned int stop_address;
 438         unsigned int now_address;
 439         unsigned int trigger_address;
 440         unsigned int trigger_offset;
 441         unsigned int triggerbar;
 442         unsigned int ramsize_trigger;
 443         unsigned int memory_size;
 444         unsigned int valid_samples;
 445         unsigned int discard;
 446         int trigger_now;
 447
 448         devc = sdi->priv;
 449
 450         if (analyzer_add_triggers(sdi) != SR_OK) {
 451                 sr_err("Failed to configure triggers.");
 452                 return SR_ERR;
 453         }
 454
 455         usb = sdi->conn;
 456
 457         set_triggerbar(devc);
 458
 459         /* Push configured settings to device. */
 460         analyzer_configure(usb->devhdl);
 461
 462         analyzer_start(usb->devhdl);
 463         sr_info("Waiting for data.");
 464         analyzer_wait_data(usb->devhdl);
 465
 466         status = analyzer_read_status(usb->devhdl);
 467         stop_address = analyzer_get_stop_address(usb->devhdl);
 468         now_address = analyzer_get_now_address(usb->devhdl);
 469         trigger_address = analyzer_get_trigger_address(usb->devhdl);
 470
 471         triggerbar = analyzer_get_triggerbar_address();
 472         ramsize_trigger = analyzer_get_ramsize_trigger_address();
 473
 474         n = get_memory_size(devc->memory_size);
 475         memory_size = n / 4;
 476
 477         sr_info("Status = 0x%x.", status);
 478         sr_info("Stop address       = 0x%x.", stop_address);
 479         sr_info("Now address        = 0x%x.", now_address);
 480         sr_info("Trigger address    = 0x%x.", trigger_address);
 481         sr_info("Triggerbar address = 0x%x.", triggerbar);
 482         sr_info("Ramsize trigger    = 0x%x.", ramsize_trigger);
 483         sr_info("Memory size        = 0x%x.", memory_size);
 484
 485         std_session_send_df_header(sdi);
 486
 487         /* Check for empty capture */
 488         if ((status & STATUS_READY) && !stop_address) {
 489                 std_session_send_df_end(sdi);
 490                 return SR_OK;
 491         }
 492
 493         buf = g_malloc(PACKET_SIZE);
 494
 495         /* Check if the trigger is in the samples we are throwing away */
 496         trigger_now = now_address == trigger_address ||
 497                 ((now_address + 1) % memory_size) == trigger_address;
 498
 499         /*
 500          * STATUS_READY doesn't clear until now_address advances past
 501          * addr 0, but for our logic, clear it in that case
 502          */
 503         if (!now_address)
 504                 status &= ~STATUS_READY;
 505
 506         analyzer_read_start(usb->devhdl);
 507
 508         /* Calculate how much data to discard */
 509         discard = 0;
 510         if (status & STATUS_READY) {
 511                 /*
 512                  * We haven't wrapped around, we need to throw away data from
 513                  * our current position to the end of the buffer.
 514                  * Additionally, the first two samples captured are always
 515                  * bogus.
 516                  */
 517                 discard += memory_size - now_address + 2;
 518                 now_address = 2;
 519         }
 520
 521         /* If we have more samples than we need, discard them */
 522         valid_samples = (stop_address - now_address) % memory_size;
 523         if (valid_samples > ramsize_trigger + triggerbar) {
 524                 discard += valid_samples - (ramsize_trigger + triggerbar);
 525                 now_address += valid_samples - (ramsize_trigger + triggerbar);
 526         }
 527
 528         sr_info("Need to discard %d samples.", discard);
 529
 530         /* Calculate how far in the trigger is */
 531         if (trigger_now)
 532                 trigger_offset = 0;
 533         else
 534                 trigger_offset = (trigger_address - now_address) % memory_size;
 535
 536         /* Recalculate the number of samples available */
 537         valid_samples = (stop_address - now_address) % memory_size;
 538
 539         /* Send the incoming transfer to the session bus. */
 540         samples_read = 0;
 541         for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) {
 542                 unsigned int len;
 543                 unsigned int buf_offset;
 544
 545                 res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE);
 546                 sr_info("Tried to read %d bytes, actually read %d bytes.",
 547                         PACKET_SIZE, res);
 548
 549                 if (discard >= PACKET_SIZE / 4) {
 550                         discard -= PACKET_SIZE / 4;
 551                         continue;
 552                 }
 553
 554                 len = PACKET_SIZE - discard * 4;
 555                 buf_offset = discard * 4;
 556                 discard = 0;
 557
 558                 /* Check if we've read all the samples */
 559                 if (samples_read + len / 4 >= valid_samples)
 560                         len = (valid_samples - samples_read) * 4;
 561                 if (!len)
 562                         break;
 563
 564                 if (samples_read < trigger_offset &&
 565                     samples_read + len / 4 > trigger_offset) {
 566                         /* Send out samples remaining before trigger */
 567                         packet.type = SR_DF_LOGIC;
 568                         packet.payload = &logic;
 569                         logic.length = (trigger_offset - samples_read) * 4;
 570                         logic.unitsize = 4;
 571                         logic.data = buf + buf_offset;
 572                         sr_session_send(sdi, &packet);
 573                         len -= logic.length;
 574                         samples_read += logic.length / 4;
 575                         buf_offset += logic.length;
 576                 }
 577
 578                 if (samples_read == trigger_offset) {
 579                         /* Send out trigger */
 580                         packet.type = SR_DF_TRIGGER;
 581                         packet.payload = NULL;
 582                         sr_session_send(sdi, &packet);
 583                 }
 584
 585                 /* Send out data (or data after trigger) */
 586                 packet.type = SR_DF_LOGIC;
 587                 packet.payload = &logic;
 588                 logic.length = len;
 589                 logic.unitsize = 4;
 590                 logic.data = buf + buf_offset;
 591                 sr_session_send(sdi, &packet);
 592                 samples_read += len / 4;
 593         }
 594         analyzer_read_stop(usb->devhdl);
 595         g_free(buf);
 596
 597         std_session_send_df_end(sdi);
 598
 599         return SR_OK;
 600 }
 601
 602 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 603 {
 604         struct sr_usb_dev_inst *usb;
 605
 606         std_session_send_df_end(sdi);
 607
 608         usb = sdi->conn;
 609         analyzer_reset(usb->devhdl);
 610         /* TODO: Need to cancel and free any queued up transfers. */
 611
 612         return SR_OK;
 613 }
 614
 615 static struct sr_dev_driver zeroplus_logic_cube_driver_info = {
 616         .name = "zeroplus-logic-cube",
 617         .longname = "ZEROPLUS Logic Cube LAP-C series",
 618         .api_version = 1,
 619         .init = std_init,
 620         .cleanup = std_cleanup,
 621         .scan = scan,
 622         .dev_list = std_dev_list,
 623         .dev_clear = std_dev_clear,
 624         .config_get = config_get,
 625         .config_set = config_set,
 626         .config_list = config_list,
 627         .dev_open = dev_open,
 628         .dev_close = dev_close,
 629         .dev_acquisition_start = dev_acquisition_start,
 630         .dev_acquisition_stop = dev_acquisition_stop,
 631         .context = NULL,
 632 };
 633 SR_REGISTER_DEV_DRIVER(zeroplus_logic_cube_driver_info);