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 "protocol.h"
  21
  22 #define VENDOR_NAME                     "ZEROPLUS"
  23 #define USB_INTERFACE                   0
  24 #define USB_CONFIGURATION               1
  25 #define NUM_TRIGGER_STAGES              4
  26 #define TRIGGER_TYPE                    "01"
  27 #define PACKET_SIZE                     2048    /* ?? */
  28
  29 //#define ZP_EXPERIMENTAL
  30
  31 struct zp_model {
  32         uint16_t vid;
  33         uint16_t pid;
  34         char *model_name;
  35         unsigned int channels;
  36         unsigned int sample_depth;      /* In Ksamples/channel */
  37         unsigned int max_sampling_freq;
  38 };
  39
  40 /*
  41  * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the
  42  * same 128K sample depth.
  43  */
  44 static const struct zp_model zeroplus_models[] = {
  45         {0x0c12, 0x7002, "LAP-16128U",    16, 128,  200},
  46         {0x0c12, 0x7009, "LAP-C(16064)",  16, 64,   100},
  47         {0x0c12, 0x700a, "LAP-C(16128)",  16, 128,  200},
  48         /* We don't yet support 32 probes */
  49         {0x0c12, 0x700b, "LAP-C(32128)",  16, 128,  200},
  50         {0x0c12, 0x700c, "LAP-C(321000)", 16, 1024, 200},
  51         {0x0c12, 0x700d, "LAP-C(322000)", 16, 2048, 200},
  52         {0x0c12, 0x700e, "LAP-C(16032)",  16, 32,   100},
  53         {0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200},
  54         { 0, 0, 0, 0, 0, 0 }
  55 };
  56
  57 static const int32_t hwcaps[] = {
  58         SR_CONF_LOGIC_ANALYZER,
  59         SR_CONF_SAMPLERATE,
  60         SR_CONF_CAPTURE_RATIO,
  61         SR_CONF_LIMIT_SAMPLES,
  62 };
  63
  64 /*
  65  * ZEROPLUS LAP-C (16032) numbers the 16 probes A0-A7 and B0-B7.
  66  * We currently ignore other untested/unsupported devices here.
  67  */
  68 static const char *probe_names[] = {
  69         "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
  70         "B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7",
  71         NULL,
  72 };
  73
  74 SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
  75 static struct sr_dev_driver *di = &zeroplus_logic_cube_driver_info;
  76
  77 /*
  78  * The hardware supports more samplerates than these, but these are the
  79  * options hardcoded into the vendor's Windows GUI.
  80  */
  81
  82 static const uint64_t samplerates_100[] = {
  83         SR_HZ(100),
  84         SR_HZ(500),
  85         SR_KHZ(1),
  86         SR_KHZ(5),
  87         SR_KHZ(25),
  88         SR_KHZ(50),
  89         SR_KHZ(100),
  90         SR_KHZ(200),
  91         SR_KHZ(400),
  92         SR_KHZ(800),
  93         SR_MHZ(1),
  94         SR_MHZ(10),
  95         SR_MHZ(25),
  96         SR_MHZ(50),
  97         SR_MHZ(80),
  98         SR_MHZ(100),
  99 };
 100
 101 const uint64_t samplerates_200[] = {
 102         SR_HZ(100),
 103         SR_HZ(500),
 104         SR_KHZ(1),
 105         SR_KHZ(5),
 106         SR_KHZ(25),
 107         SR_KHZ(50),
 108         SR_KHZ(100),
 109         SR_KHZ(200),
 110         SR_KHZ(400),
 111         SR_KHZ(800),
 112         SR_MHZ(1),
 113         SR_MHZ(10),
 114         SR_MHZ(25),
 115         SR_MHZ(50),
 116         SR_MHZ(80),
 117         SR_MHZ(100),
 118         SR_MHZ(150),
 119         SR_MHZ(200),
 120 };
 121
 122 static int dev_close(struct sr_dev_inst *sdi);
 123
 124 #if 0
 125 static int configure_probes(const struct sr_dev_inst *sdi)
 126 {
 127         struct dev_context *devc;
 128         const struct sr_probe *probe;
 129         const GSList *l;
 130         int probe_bit, stage, i;
 131         char *tc;
 132
 133         /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
 134         devc = sdi->priv;
 135
 136         devc->probe_mask = 0;
 137         for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
 138                 devc->trigger_mask[i] = 0;
 139                 devc->trigger_value[i] = 0;
 140         }
 141
 142         stage = -1;
 143         for (l = sdi->probes; l; l = l->next) {
 144                 probe = (struct sr_probe *)l->data;
 145                 if (probe->enabled == FALSE)
 146                         continue;
 147                 probe_bit = 1 << (probe->index);
 148                 devc->probe_mask |= probe_bit;
 149
 150                 if (probe->trigger) {
 151                         stage = 0;
 152                         for (tc = probe->trigger; *tc; tc++) {
 153                                 devc->trigger_mask[stage] |= probe_bit;
 154                                 if (*tc == '1')
 155                                         devc->trigger_value[stage] |= probe_bit;
 156                                 stage++;
 157                                 if (stage > NUM_TRIGGER_STAGES)
 158                                         return SR_ERR;
 159                         }
 160                 }
 161         }
 162
 163         return SR_OK;
 164 }
 165 #endif
 166
 167 static int configure_probes(const struct sr_dev_inst *sdi)
 168 {
 169         struct dev_context *devc;
 170         const GSList *l;
 171         const struct sr_probe *probe;
 172         char *tc;
 173         int type;
 174
 175         /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
 176         devc = sdi->priv;
 177
 178         for (l = sdi->probes; l; l = l->next) {
 179                 probe = (struct sr_probe *)l->data;
 180                 if (probe->enabled == FALSE)
 181                         continue;
 182
 183                 if ((tc = probe->trigger)) {
 184                         switch (*tc) {
 185                         case '1':
 186                                 type = TRIGGER_HIGH;
 187                                 break;
 188                         case '0':
 189                                 type = TRIGGER_LOW;
 190                                 break;
 191 #if 0
 192                         case 'r':
 193                                 type = TRIGGER_POSEDGE;
 194                                 break;
 195                         case 'f':
 196                                 type = TRIGGER_NEGEDGE;
 197                                 break;
 198                         case 'c':
 199                                 type = TRIGGER_ANYEDGE;
 200                                 break;
 201 #endif
 202                         default:
 203                                 return SR_ERR;
 204                         }
 205                         analyzer_add_trigger(probe->index, type);
 206                         devc->trigger = 1;
 207                 }
 208         }
 209
 210         return SR_OK;
 211 }
 212
 213 SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate)
 214 {
 215         int i;
 216
 217         for (i = 0; ARRAY_SIZE(samplerates_200); i++)
 218                 if (samplerate == samplerates_200[i])
 219                         break;
 220
 221         if (i == ARRAY_SIZE(samplerates_200) || samplerate > devc->max_samplerate) {
 222                 sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate);
 223                 return SR_ERR_ARG;
 224         }
 225
 226         sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate);
 227
 228         if (samplerate >= SR_MHZ(1))
 229                 analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ);
 230         else if (samplerate >= SR_KHZ(1))
 231                 analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ);
 232         else
 233                 analyzer_set_freq(samplerate, FREQ_SCALE_HZ);
 234
 235         devc->cur_samplerate = samplerate;
 236
 237         return SR_OK;
 238 }
 239
 240 static int dev_clear(void)
 241 {
 242         return std_dev_clear(di, NULL);
 243 }
 244
 245 static int init(struct sr_context *sr_ctx)
 246 {
 247         return std_init(sr_ctx, di, LOG_PREFIX);
 248 }
 249
 250 static GSList *scan(GSList *options)
 251 {
 252         struct sr_dev_inst *sdi;
 253         struct sr_probe *probe;
 254         struct drv_context *drvc;
 255         struct dev_context *devc;
 256         const struct zp_model *prof;
 257         struct libusb_device_descriptor des;
 258         libusb_device **devlist;
 259         GSList *devices;
 260         int ret, devcnt, i, j;
 261
 262         (void)options;
 263
 264         drvc = di->priv;
 265
 266         devices = NULL;
 267
 268         /* Find all ZEROPLUS analyzers and add them to device list. */
 269         devcnt = 0;
 270         libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */
 271
 272         for (i = 0; devlist[i]; i++) {
 273                 ret = libusb_get_device_descriptor(devlist[i], &des);
 274                 if (ret != 0) {
 275                         sr_err("Failed to get device descriptor: %s.",
 276                                libusb_error_name(ret));
 277                         continue;
 278                 }
 279
 280                 prof = NULL;
 281                 for (j = 0; j < zeroplus_models[j].vid; j++) {
 282                         if (des.idVendor == zeroplus_models[j].vid &&
 283                                 des.idProduct == zeroplus_models[j].pid) {
 284                                 prof = &zeroplus_models[j];
 285                         }
 286                 }
 287                 /* Skip if the device was not found. */
 288                 if (!prof)
 289                         continue;
 290                 sr_info("Found ZEROPLUS %s.", prof->model_name);
 291
 292                 /* Register the device with libsigrok. */
 293                 if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
 294                                 VENDOR_NAME, prof->model_name, NULL))) {
 295                         sr_err("%s: sr_dev_inst_new failed", __func__);
 296                         return NULL;
 297                 }
 298                 sdi->driver = di;
 299
 300                 /* Allocate memory for our private driver context. */
 301                 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
 302                         sr_err("Device context malloc failed.");
 303                         return NULL;
 304                 }
 305
 306                 sdi->priv = devc;
 307                 devc->prof = prof;
 308                 devc->num_channels = prof->channels;
 309 #ifdef ZP_EXPERIMENTAL
 310                 devc->max_memory_size = 128 * 1024;
 311                 devc->max_samplerate = 200;
 312 #else
 313                 devc->max_memory_size = prof->sample_depth * 1024;
 314                 devc->max_samplerate = prof->max_sampling_freq;
 315 #endif
 316                 devc->max_samplerate *= SR_MHZ(1);
 317                 devc->memory_size = MEMORY_SIZE_8K;
 318                 // memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES);
 319
 320                 /* Fill in probelist according to this device's profile. */
 321                 for (j = 0; j < devc->num_channels; j++) {
 322                         if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
 323                                         probe_names[j])))
 324                                 return NULL;
 325                         sdi->probes = g_slist_append(sdi->probes, probe);
 326                 }
 327
 328                 devices = g_slist_append(devices, sdi);
 329                 drvc->instances = g_slist_append(drvc->instances, sdi);
 330                 sdi->inst_type = SR_INST_USB;
 331                 sdi->conn = sr_usb_dev_inst_new(
 332                         libusb_get_bus_number(devlist[i]),
 333                         libusb_get_device_address(devlist[i]), NULL);
 334                 devcnt++;
 335
 336         }
 337         libusb_free_device_list(devlist, 1);
 338
 339         return devices;
 340 }
 341
 342 static GSList *dev_list(void)
 343 {
 344         return ((struct drv_context *)(di->priv))->instances;
 345 }
 346
 347 static int dev_open(struct sr_dev_inst *sdi)
 348 {
 349         struct dev_context *devc;
 350         struct drv_context *drvc;
 351         struct sr_usb_dev_inst *usb;
 352         libusb_device **devlist, *dev;
 353         struct libusb_device_descriptor des;
 354         int device_count, ret, i;
 355
 356         drvc = di->priv;
 357         usb = sdi->conn;
 358
 359         if (!(devc = sdi->priv)) {
 360                 sr_err("%s: sdi->priv was NULL", __func__);
 361                 return SR_ERR_ARG;
 362         }
 363
 364         device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx,
 365                                               &devlist);
 366         if (device_count < 0) {
 367                 sr_err("Failed to retrieve device list.");
 368                 return SR_ERR;
 369         }
 370
 371         dev = NULL;
 372         for (i = 0; i < device_count; i++) {
 373                 if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
 374                         sr_err("Failed to get device descriptor: %s.",
 375                                libusb_error_name(ret));
 376                         continue;
 377                 }
 378                 if (libusb_get_bus_number(devlist[i]) == usb->bus
 379                     && libusb_get_device_address(devlist[i]) == usb->address) {
 380                         dev = devlist[i];
 381                         break;
 382                 }
 383         }
 384         if (!dev) {
 385                 sr_err("Device on bus %d address %d disappeared!",
 386                        usb->bus, usb->address);
 387                 return SR_ERR;
 388         }
 389
 390         if (!(ret = libusb_open(dev, &(usb->devhdl)))) {
 391                 sdi->status = SR_ST_ACTIVE;
 392                 sr_info("Opened device %d on %d.%d interface %d.",
 393                         sdi->index, usb->bus, usb->address, USB_INTERFACE);
 394         } else {
 395                 sr_err("Failed to open device: %s.", libusb_error_name(ret));
 396                 return SR_ERR;
 397         }
 398
 399         ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION);
 400         if (ret < 0) {
 401                 sr_err("Unable to set USB configuration %d: %s.",
 402                        USB_CONFIGURATION, libusb_error_name(ret));
 403                 return SR_ERR;
 404         }
 405
 406         ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 407         if (ret != 0) {
 408                 sr_err("Unable to claim interface: %s.",
 409                        libusb_error_name(ret));
 410                 return SR_ERR;
 411         }
 412
 413         /* Set default configuration after power on. */
 414         if (analyzer_read_status(usb->devhdl) == 0)
 415                 analyzer_configure(usb->devhdl);
 416
 417         analyzer_reset(usb->devhdl);
 418         analyzer_initialize(usb->devhdl);
 419
 420         //analyzer_set_memory_size(MEMORY_SIZE_512K);
 421         // analyzer_set_freq(g_freq, g_freq_scale);
 422         analyzer_set_trigger_count(1);
 423         // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
 424         // * get_memory_size(g_memory_size)) / 100) >> 2);
 425
 426 #if 0
 427         if (g_double_mode == 1)
 428                 analyzer_set_compression(COMPRESSION_DOUBLE);
 429         else if (g_compression == 1)
 430                 analyzer_set_compression(COMPRESSION_ENABLE);
 431         else
 432 #endif
 433         analyzer_set_compression(COMPRESSION_NONE);
 434
 435         if (devc->cur_samplerate == 0) {
 436                 /* Samplerate hasn't been set. Default to 1MHz. */
 437                 analyzer_set_freq(1, FREQ_SCALE_MHZ);
 438                 devc->cur_samplerate = SR_MHZ(1);
 439         }
 440
 441         return SR_OK;
 442 }
 443
 444 static int dev_close(struct sr_dev_inst *sdi)
 445 {
 446         struct sr_usb_dev_inst *usb;
 447
 448         usb = sdi->conn;
 449
 450         if (!usb->devhdl)
 451                 return SR_ERR;
 452
 453         sr_info("Closing device %d on %d.%d interface %d.", sdi->index,
 454                 usb->bus, usb->address, USB_INTERFACE);
 455         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 456         libusb_reset_device(usb->devhdl);
 457         libusb_close(usb->devhdl);
 458         usb->devhdl = NULL;
 459         sdi->status = SR_ST_INACTIVE;
 460
 461         return SR_OK;
 462 }
 463
 464 static int cleanup(void)
 465 {
 466         return dev_clear();
 467 }
 468
 469 static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
 470                 const struct sr_probe_group *probe_group)
 471 {
 472         struct dev_context *devc;
 473
 474         (void)probe_group;
 475
 476         switch (id) {
 477         case SR_CONF_SAMPLERATE:
 478                 if (sdi) {
 479                         devc = sdi->priv;
 480                         *data = g_variant_new_uint64(devc->cur_samplerate);
 481                         sr_spew("Returning samplerate: %" PRIu64 "Hz.",
 482                                 devc->cur_samplerate);
 483                 } else
 484                         return SR_ERR;
 485                 break;
 486         default:
 487                 return SR_ERR_NA;
 488         }
 489
 490         return SR_OK;
 491 }
 492
 493 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
 494                 const struct sr_probe_group *probe_group)
 495 {
 496         struct dev_context *devc;
 497
 498         (void)probe_group;
 499
 500         if (sdi->status != SR_ST_ACTIVE)
 501                 return SR_ERR_DEV_CLOSED;
 502
 503         if (!(devc = sdi->priv)) {
 504                 sr_err("%s: sdi->priv was NULL", __func__);
 505                 return SR_ERR_ARG;
 506         }
 507
 508         switch (id) {
 509         case SR_CONF_SAMPLERATE:
 510                 return zp_set_samplerate(devc, g_variant_get_uint64(data));
 511         case SR_CONF_LIMIT_SAMPLES:
 512                 return set_limit_samples(devc, g_variant_get_uint64(data));
 513         case SR_CONF_CAPTURE_RATIO:
 514                 return set_capture_ratio(devc, g_variant_get_uint64(data));
 515         default:
 516                 return SR_ERR_NA;
 517         }
 518
 519         return SR_OK;
 520 }
 521
 522 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
 523                 const struct sr_probe_group *probe_group)
 524 {
 525         struct dev_context *devc;
 526         GVariant *gvar;
 527         GVariantBuilder gvb;
 528
 529         (void)probe_group;
 530
 531         switch (key) {
 532         case SR_CONF_DEVICE_OPTIONS:
 533                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 534                                 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
 535                 break;
 536         case SR_CONF_SAMPLERATE:
 537                 devc = sdi->priv;
 538                 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
 539                 if (devc->prof->max_sampling_freq == 100) {
 540                         gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
 541                                         samplerates_100, ARRAY_SIZE(samplerates_100),
 542                                         sizeof(uint64_t));
 543                 } else if (devc->prof->max_sampling_freq == 200) {
 544                         gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
 545                                         samplerates_200, ARRAY_SIZE(samplerates_200),
 546                                         sizeof(uint64_t));
 547                 } else {
 548                         sr_err("Internal error: Unknown max. samplerate: %d.",
 549                                devc->prof->max_sampling_freq);
 550                         return SR_ERR_ARG;
 551                 }
 552                 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
 553                 *data = g_variant_builder_end(&gvb);
 554                 break;
 555         case SR_CONF_TRIGGER_TYPE:
 556                 *data = g_variant_new_string(TRIGGER_TYPE);
 557                 break;
 558         default:
 559                 return SR_ERR_NA;
 560         }
 561
 562         return SR_OK;
 563 }
 564
 565 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 566                 void *cb_data)
 567 {
 568         struct dev_context *devc;
 569         struct sr_usb_dev_inst *usb;
 570         struct sr_datafeed_packet packet;
 571         struct sr_datafeed_logic logic;
 572         //uint64_t samples_read;
 573         int res;
 574         unsigned int packet_num, n;
 575         unsigned char *buf;
 576
 577         if (sdi->status != SR_ST_ACTIVE)
 578                 return SR_ERR_DEV_CLOSED;
 579
 580         if (!(devc = sdi->priv)) {
 581                 sr_err("%s: sdi->priv was NULL", __func__);
 582                 return SR_ERR_ARG;
 583         }
 584
 585         if (configure_probes(sdi) != SR_OK) {
 586                 sr_err("Failed to configure probes.");
 587                 return SR_ERR;
 588         }
 589
 590         usb = sdi->conn;
 591
 592         set_triggerbar(devc);
 593
 594         /* Push configured settings to device. */
 595         analyzer_configure(usb->devhdl);
 596
 597         analyzer_start(usb->devhdl);
 598         sr_info("Waiting for data.");
 599         analyzer_wait_data(usb->devhdl);
 600
 601         sr_info("Stop address    = 0x%x.",
 602                 analyzer_get_stop_address(usb->devhdl));
 603         sr_info("Now address     = 0x%x.",
 604                 analyzer_get_now_address(usb->devhdl));
 605         sr_info("Trigger address = 0x%x.",
 606                 analyzer_get_trigger_address(usb->devhdl));
 607
 608         /* Send header packet to the session bus. */
 609         std_session_send_df_header(cb_data, LOG_PREFIX);
 610
 611         if (!(buf = g_try_malloc(PACKET_SIZE))) {
 612                 sr_err("Packet buffer malloc failed.");
 613                 return SR_ERR_MALLOC;
 614         }
 615
 616         //samples_read = 0;
 617         analyzer_read_start(usb->devhdl);
 618         /* Send the incoming transfer to the session bus. */
 619         n = get_memory_size(devc->memory_size);
 620         if (devc->max_memory_size * 4 < n)
 621                 n = devc->max_memory_size * 4;
 622         for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) {
 623                 res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE);
 624                 sr_info("Tried to read %d bytes, actually read %d bytes.",
 625                         PACKET_SIZE, res);
 626
 627                 packet.type = SR_DF_LOGIC;
 628                 packet.payload = &logic;
 629                 logic.length = PACKET_SIZE;
 630                 logic.unitsize = 4;
 631                 logic.data = buf;
 632                 sr_session_send(cb_data, &packet);
 633                 //samples_read += res / 4;
 634         }
 635         analyzer_read_stop(usb->devhdl);
 636         g_free(buf);
 637
 638         packet.type = SR_DF_END;
 639         sr_session_send(cb_data, &packet);
 640
 641         return SR_OK;
 642 }
 643
 644 /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
 645 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 646 {
 647         struct dev_context *devc;
 648         struct sr_usb_dev_inst *usb;
 649         struct sr_datafeed_packet packet;
 650
 651         packet.type = SR_DF_END;
 652         sr_session_send(cb_data, &packet);
 653
 654         if (!(devc = sdi->priv)) {
 655                 sr_err("%s: sdi->priv was NULL", __func__);
 656                 return SR_ERR_BUG;
 657         }
 658
 659         usb = sdi->conn;
 660         analyzer_reset(usb->devhdl);
 661         /* TODO: Need to cancel and free any queued up transfers. */
 662
 663         return SR_OK;
 664 }
 665
 666 SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = {
 667         .name = "zeroplus-logic-cube",
 668         .longname = "ZEROPLUS Logic Cube LAP-C series",
 669         .api_version = 1,
 670         .init = init,
 671         .cleanup = cleanup,
 672         .scan = scan,
 673         .dev_list = dev_list,
 674         .dev_clear = dev_clear,
 675         .config_get = config_get,
 676         .config_set = config_set,
 677         .config_list = config_list,
 678         .dev_open = dev_open,
 679         .dev_close = dev_close,
 680         .dev_acquisition_start = dev_acquisition_start,
 681         .dev_acquisition_stop = dev_acquisition_stop,
 682         .priv = NULL,
 683 };