src/hardware/hantek-4032l/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2016 Andreas Zschunke <andreas.zschunke@gmx.net>
   5  * Copyright (C) 2017 Andrej Valek <andy@skyrain.eu>
   6  * Copyright (C) 2017 Uwe Hermann <uwe@hermann-uwe.de>
   7  *
   8  * This program is free software: you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation, either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include <config.h>
  23 #include "protocol.h"
  24
  25 #define USB_INTERFACE 0
  26 #define NUM_CHANNELS 32
  27
  28 static const uint32_t scanopts[] = {
  29         SR_CONF_CONN,
  30 };
  31
  32 static const uint32_t drvopts[] = {
  33         SR_CONF_LOGIC_ANALYZER,
  34 };
  35
  36 static const uint32_t devopts[] = {
  37         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  38         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  39         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  40         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
  41         SR_CONF_CONN | SR_CONF_GET,
  42         SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
  43         SR_CONF_EXTERNAL_CLOCK_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  44         SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  45 };
  46
  47 static const uint32_t devopts_fpga_zero[] = {
  48         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  49         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  50         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  51         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
  52         SR_CONF_CONN | SR_CONF_GET,
  53 };
  54
  55 static const uint32_t devopts_cg[] = {
  56         SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  57 };
  58
  59 static const char *signal_edges[] = {
  60         [H4032L_CLOCK_EDGE_TYPE_RISE] = "rising",
  61         [H4032L_CLOCK_EDGE_TYPE_FALL] = "falling",
  62         [H4032L_CLOCK_EDGE_TYPE_BOTH] = "both",
  63 };
  64
  65 static const char *ext_clock_sources[] = {
  66         [H4032L_EXT_CLOCK_SOURCE_CHANNEL_A] = "ACLK",
  67         [H4032L_EXT_CLOCK_SOURCE_CHANNEL_B] = "BCLK"
  68 };
  69
  70 static const uint8_t ext_clock_edges[2][3] = {
  71         {
  72                 H4032L_CLOCK_EDGE_TYPE_RISE_A,
  73                 H4032L_CLOCK_EDGE_TYPE_FALL_A,
  74                 H4032L_CLOCK_EDGE_TYPE_BOTH_A
  75         },
  76         {
  77                 H4032L_CLOCK_EDGE_TYPE_RISE_B,
  78                 H4032L_CLOCK_EDGE_TYPE_FALL_B,
  79                 H4032L_CLOCK_EDGE_TYPE_BOTH_B
  80         }
  81 };
  82
  83 static const int32_t trigger_matches[] = {
  84         SR_TRIGGER_ZERO,
  85         SR_TRIGGER_ONE,
  86         SR_TRIGGER_RISING,
  87         SR_TRIGGER_FALLING,
  88         SR_TRIGGER_EDGE,
  89 };
  90
  91 static const uint64_t samplerates[] = {
  92         SR_KHZ(1),
  93         SR_KHZ(2),
  94         SR_KHZ(4),
  95         SR_KHZ(8),
  96         SR_KHZ(16),
  97         SR_HZ(31250),
  98         SR_HZ(62500),
  99         SR_KHZ(125),
 100         SR_KHZ(250),
 101         SR_KHZ(500),
 102         SR_KHZ(625),
 103         SR_HZ(781250),
 104         SR_MHZ(1),
 105         SR_KHZ(1250),
 106         SR_HZ(1562500),
 107         SR_MHZ(2),
 108         SR_KHZ(2500),
 109         SR_KHZ(3125),
 110         SR_MHZ(4),
 111         SR_MHZ(5),
 112         SR_KHZ(6250),
 113         SR_MHZ(10),
 114         SR_KHZ(12500),
 115         SR_MHZ(20),
 116         SR_MHZ(25),
 117         SR_MHZ(40),
 118         SR_MHZ(50),
 119         SR_MHZ(80),
 120         SR_MHZ(100),
 121         SR_MHZ(160),
 122         SR_MHZ(200),
 123         SR_MHZ(320),
 124         SR_MHZ(400),
 125 };
 126
 127 static const uint64_t samplerates_hw[] = {
 128         SR_MHZ(100),
 129         SR_MHZ(50),
 130         SR_MHZ(25),
 131         SR_KHZ(12500),
 132         SR_KHZ(6250),
 133         SR_KHZ(3125),
 134         SR_HZ(1562500),
 135         SR_HZ(781250),
 136         SR_MHZ(80),
 137         SR_MHZ(40),
 138         SR_MHZ(20),
 139         SR_MHZ(10),
 140         SR_MHZ(5),
 141         SR_KHZ(2500),
 142         SR_KHZ(1250),
 143         SR_KHZ(625),
 144         SR_MHZ(4),
 145         SR_MHZ(2),
 146         SR_MHZ(1),
 147         SR_KHZ(500),
 148         SR_KHZ(250),
 149         SR_KHZ(125),
 150         SR_HZ(62500),
 151         SR_HZ(31250),
 152         SR_KHZ(16),
 153         SR_KHZ(8),
 154         SR_KHZ(4),
 155         SR_KHZ(2),
 156         SR_KHZ(1),
 157         0,
 158         0,
 159         0,
 160         SR_MHZ(200),
 161         SR_MHZ(160),
 162         SR_MHZ(400),
 163         SR_MHZ(320),
 164 };
 165
 166 SR_PRIV struct sr_dev_driver hantek_4032l_driver_info;
 167
 168 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 169 {
 170         struct drv_context *drvc = di->context;
 171         GSList *l, *devices, *conn_devices;
 172         libusb_device **devlist;
 173         struct libusb_device_descriptor des;
 174         const char *conn;
 175         int i;
 176         char connection_id[64];
 177         struct sr_channel_group *cg;
 178         struct sr_dev_inst *sdi;
 179         struct sr_channel *ch;
 180
 181         devices = NULL;
 182         conn_devices = NULL;
 183         drvc->instances = NULL;
 184         conn = NULL;
 185
 186         for (l = options; l; l = l->next) {
 187                 struct sr_config *src = l->data;
 188                 if (src->key == SR_CONF_CONN) {
 189                         conn = g_variant_get_string(src->data, NULL);
 190                         break;
 191                 }
 192         }
 193
 194         if (conn)
 195                 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
 196         else
 197                 conn_devices = NULL;
 198
 199         libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
 200         for (i = 0; devlist[i]; i++) {
 201                 if (conn) {
 202                         struct sr_usb_dev_inst *usb = NULL;
 203                         for (l = conn_devices; l; l = l->next) {
 204                                 usb = l->data;
 205                                 if (usb->bus == libusb_get_bus_number(devlist[i]) &&
 206                                     usb->address == libusb_get_device_address(devlist[i]))
 207                                         break;
 208                         }
 209                         if (!l)
 210                                 /* This device matched none of the ones that
 211                                  * matched the conn specification. */
 212                                 continue;
 213                 }
 214
 215                 libusb_get_device_descriptor(devlist[i], &des);
 216
 217                 if (des.idVendor != H4032L_USB_VENDOR ||
 218                     des.idProduct != H4032L_USB_PRODUCT)
 219                         continue;
 220
 221                 if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0)
 222                         continue;
 223
 224                 sdi = g_malloc0(sizeof(struct sr_dev_inst));
 225                 sdi->driver = &hantek_4032l_driver_info;
 226                 sdi->vendor = g_strdup("Hantek");
 227                 sdi->model = g_strdup("4032L");
 228                 sdi->connection_id = g_strdup(connection_id);
 229
 230                 struct sr_channel_group *channel_groups[2];
 231                 for (int j = 0; j < 2; j++) {
 232                         cg = g_malloc0(sizeof(struct sr_channel_group));
 233                         cg->name = g_strdup_printf("%c", 'A' + j);
 234                         channel_groups[j] = cg;
 235                         sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
 236                 }
 237
 238                 /* Assemble channel list and add channel to channel groups. */
 239                 for (int j = 0; j < NUM_CHANNELS; j++) {
 240                         char channel_name[4];
 241                         sprintf(channel_name, "%c%d", 'A' + (j & 1), j / 2);
 242                         ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, channel_name);
 243                         cg = channel_groups[j & 1];
 244                         cg->channels = g_slist_append(cg->channels, ch);
 245                 }
 246
 247                 struct dev_context *devc = g_malloc0(sizeof(struct dev_context));
 248
 249                 /* Initialize command packet. */
 250                 devc->cmd_pkt.magic = H4032L_CMD_PKT_MAGIC;
 251                 devc->cmd_pkt.sample_size = 16384;
 252                 devc->sample_rate = 0;
 253
 254                 devc->status = H4032L_STATUS_IDLE;
 255
 256                 devc->capture_ratio = 5;
 257                 devc->external_clock = FALSE;
 258                 devc->clock_edge = H4032L_CLOCK_EDGE_TYPE_RISE;
 259
 260                 devc->cur_threshold[0] = 2.5;
 261                 devc->cur_threshold[1] = 2.5;
 262
 263                 sdi->priv = devc;
 264                 devices = g_slist_append(devices, sdi);
 265
 266                 sdi->status = SR_ST_INACTIVE;
 267                 sdi->inst_type = SR_INST_USB;
 268                 sdi->conn = sr_usb_dev_inst_new(
 269                         libusb_get_bus_number(devlist[i]),
 270                         libusb_get_device_address(devlist[i]), NULL);
 271         }
 272
 273         g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
 274         libusb_free_device_list(devlist, 1);
 275
 276         return std_scan_complete(di, devices);
 277 }
 278
 279 static int dev_open(struct sr_dev_inst *sdi)
 280 {
 281         struct sr_usb_dev_inst *usb = sdi->conn;
 282         int ret;
 283
 284         ret = h4032l_dev_open(sdi);
 285         if (ret != SR_OK) {
 286                 sr_err("Unable to open device.");
 287                 return SR_ERR;
 288         }
 289
 290         ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 291         if (ret != 0) {
 292                 switch (ret) {
 293                 case LIBUSB_ERROR_BUSY:
 294                         sr_err("Unable to claim USB interface. Another "
 295                                "program or driver has already claimed it.");
 296                         break;
 297                 case LIBUSB_ERROR_NO_DEVICE:
 298                         sr_err("Device has been disconnected.");
 299                         break;
 300                 default:
 301                         sr_err("Unable to claim interface: %s.",
 302                                libusb_error_name(ret));
 303                         break;
 304                 }
 305
 306                 return SR_ERR;
 307         }
 308
 309         /* Get FPGA version. */
 310         if ((ret = h4032l_get_fpga_version(sdi)) != SR_OK)
 311                 return ret;
 312
 313         return SR_OK;
 314 }
 315
 316 static int dev_close(struct sr_dev_inst *sdi)
 317 {
 318         struct sr_usb_dev_inst *usb;
 319
 320         usb = sdi->conn;
 321
 322         if (!usb->devhdl)
 323                 return SR_ERR_BUG;
 324
 325         sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
 326                 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 327         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 328         libusb_close(usb->devhdl);
 329         usb->devhdl = NULL;
 330
 331         return SR_OK;
 332 }
 333
 334 static int config_get(uint32_t key, GVariant **data,
 335         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 336 {
 337         struct dev_context *devc = sdi->priv;
 338         struct sr_usb_dev_inst *usb;
 339         unsigned int idx;
 340
 341         switch (key) {
 342         case SR_CONF_VOLTAGE_THRESHOLD:
 343                 if (!cg)
 344                         return SR_ERR_CHANNEL_GROUP;
 345                 if (!strcmp(cg->name, "A"))
 346                         *data = std_gvar_tuple_double(
 347                                 devc->cur_threshold[0], devc->cur_threshold[0]);
 348                 else if (!strcmp(cg->name, "B"))
 349                         *data = std_gvar_tuple_double(
 350                                 devc->cur_threshold[1], devc->cur_threshold[1]);
 351                 else
 352                         return SR_ERR_CHANNEL_GROUP;
 353                 break;
 354         case SR_CONF_SAMPLERATE:
 355                 *data = g_variant_new_uint64(samplerates_hw[devc->sample_rate]);
 356                 break;
 357         case SR_CONF_CAPTURE_RATIO:
 358                 *data = g_variant_new_uint64(devc->capture_ratio);
 359                 break;
 360         case SR_CONF_LIMIT_SAMPLES:
 361                 *data = g_variant_new_uint64(devc->cmd_pkt.sample_size);
 362                 break;
 363         case SR_CONF_EXTERNAL_CLOCK:
 364                 *data = g_variant_new_boolean(devc->external_clock);
 365                 break;
 366         case SR_CONF_EXTERNAL_CLOCK_SOURCE:
 367                 idx = devc->external_clock_source;
 368                 if (idx >= ARRAY_SIZE(ext_clock_sources))
 369                         return SR_ERR_BUG;
 370                 *data = g_variant_new_string(ext_clock_sources[idx]);
 371                 break;
 372         case SR_CONF_CONN:
 373                 if (!sdi || !(usb = sdi->conn))
 374                         return SR_ERR_ARG;
 375                 *data = g_variant_new_printf("%d.%d", usb->bus, usb->address);
 376                 break;
 377         case SR_CONF_CLOCK_EDGE:
 378                 idx = devc->clock_edge;
 379                 if (idx >= ARRAY_SIZE(signal_edges))
 380                         return SR_ERR_BUG;
 381                 *data = g_variant_new_string(signal_edges[idx]);
 382                 break;
 383         default:
 384                 return SR_ERR_NA;
 385         }
 386
 387         return SR_OK;
 388 }
 389
 390 static int config_set(uint32_t key, GVariant *data,
 391         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 392 {
 393         int idx;
 394         struct dev_context *devc = sdi->priv;
 395         struct h4032l_cmd_pkt *cmd_pkt = &devc->cmd_pkt;
 396         uint64_t sample_rate, number_samples;
 397         double low, high, threshold;
 398
 399         switch (key) {
 400         case SR_CONF_SAMPLERATE:
 401                 idx = 0;
 402                 sample_rate = g_variant_get_uint64(data);
 403                 while (idx < ARRAY_SIZE(samplerates_hw) && samplerates_hw[idx] != sample_rate)
 404                         idx++;
 405                 if (idx == ARRAY_SIZE(samplerates_hw) || sample_rate == 0) {
 406                         sr_err("Invalid sample rate.");
 407                         return SR_ERR_SAMPLERATE;
 408                 }
 409                 devc->sample_rate = idx;
 410                 break;
 411         case SR_CONF_CAPTURE_RATIO:
 412                 devc->capture_ratio = g_variant_get_uint64(data);
 413                 break;
 414         case SR_CONF_LIMIT_SAMPLES:
 415                 number_samples = g_variant_get_uint64(data);
 416                 number_samples += 511;
 417                 number_samples &= 0xfffffe00;
 418                 if (number_samples < H4043L_NUM_SAMPLES_MIN ||
 419                     number_samples > H4032L_NUM_SAMPLES_MAX) {
 420                         sr_err("Invalid sample range 2k...64M: %"
 421                                PRIu64 ".", number_samples);
 422                         return SR_ERR;
 423                 }
 424                 cmd_pkt->sample_size = number_samples;
 425                 break;
 426         case SR_CONF_VOLTAGE_THRESHOLD:
 427                 if (!cg)
 428                         return SR_ERR_CHANNEL_GROUP;
 429                 g_variant_get(data, "(dd)", &low, &high);
 430                 threshold = (low + high) / 2.0;
 431                 if (!strcmp(cg->name, "A"))
 432                         devc->cur_threshold[0] = threshold;
 433                 else if (!strcmp(cg->name, "B"))
 434                         devc->cur_threshold[1] = threshold;
 435                 else
 436                         return SR_ERR_CHANNEL_GROUP;
 437                 break;
 438         case SR_CONF_EXTERNAL_CLOCK:
 439                 devc->external_clock = g_variant_get_boolean(data);
 440                 break;
 441         case SR_CONF_EXTERNAL_CLOCK_SOURCE:
 442                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(ext_clock_sources))) < 0)
 443                         return SR_ERR_ARG;
 444                 devc->external_clock_source = idx;
 445                 break;
 446         case SR_CONF_CLOCK_EDGE:
 447                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(signal_edges))) < 0)
 448                         return SR_ERR_ARG;
 449                 devc->clock_edge = idx;
 450                 break;
 451         default:
 452                 return SR_ERR_NA;
 453         }
 454
 455         return SR_OK;
 456 }
 457
 458 static int config_list(uint32_t key, GVariant **data,
 459         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 460 {
 461         struct dev_context *devc = (sdi) ? sdi->priv : NULL;
 462
 463         switch (key) {
 464         case SR_CONF_SCAN_OPTIONS:
 465         case SR_CONF_DEVICE_OPTIONS:
 466                 if (cg) {
 467                         *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
 468                         break;
 469                 }
 470                 /* Disable external clock and edges for FPGA version 0. */
 471                 if (devc && (!devc->fpga_version))
 472                         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts_fpga_zero);
 473                 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 474         case SR_CONF_SAMPLERATE:
 475                 *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates));
 476                 break;
 477         case SR_CONF_TRIGGER_MATCH:
 478                 *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
 479                 break;
 480         case SR_CONF_VOLTAGE_THRESHOLD:
 481                 *data = std_gvar_min_max_step_thresholds(-6.0, 6.0, 0.1);
 482                 break;
 483         case SR_CONF_LIMIT_SAMPLES:
 484                 *data = std_gvar_tuple_u64(H4043L_NUM_SAMPLES_MIN, H4032L_NUM_SAMPLES_MAX);
 485                 break;
 486         case SR_CONF_CLOCK_EDGE:
 487                 *data = g_variant_new_strv(ARRAY_AND_SIZE(signal_edges));
 488                 break;
 489         case SR_CONF_EXTERNAL_CLOCK_SOURCE:
 490                 *data = g_variant_new_strv(ARRAY_AND_SIZE(ext_clock_sources));
 491                 break;
 492         default:
 493                 return SR_ERR_NA;
 494         }
 495
 496         return SR_OK;
 497 }
 498
 499 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 500 {
 501         struct sr_dev_driver *di = sdi->driver;
 502         struct drv_context *drvc = di->context;
 503         struct dev_context *devc = sdi->priv;
 504         struct sr_trigger *trigger = sr_session_trigger_get(sdi->session);
 505         struct h4032l_cmd_pkt *cmd_pkt = &devc->cmd_pkt;
 506
 507         /* Initialize variables. */
 508         devc->acq_aborted = FALSE;
 509         devc->submitted_transfers = 0;
 510         devc->sent_samples = 0;
 511
 512         /* Calculate packet ratio. */
 513         cmd_pkt->pre_trigger_size = (cmd_pkt->sample_size * devc->capture_ratio) / 100;
 514         devc->trigger_pos = cmd_pkt->pre_trigger_size;
 515
 516         /* Set clock edge, when external clock is enabled. */
 517         if (devc->external_clock)
 518                 cmd_pkt->sample_rate = ext_clock_edges[devc->external_clock_source][devc->clock_edge];
 519         else
 520                 cmd_pkt->sample_rate = devc->sample_rate;
 521
 522         /* Set pwm channel values. */
 523         devc->cmd_pkt.pwm_a = h4032l_voltage2pwm(devc->cur_threshold[0]);
 524         devc->cmd_pkt.pwm_b = h4032l_voltage2pwm(devc->cur_threshold[1]);
 525
 526         cmd_pkt->trig_flags.enable_trigger1 = 0;
 527         cmd_pkt->trig_flags.enable_trigger2 = 0;
 528         cmd_pkt->trig_flags.trigger_and_logic = 0;
 529
 530         if (trigger && trigger->stages) {
 531                 GSList *stages = trigger->stages;
 532                 struct sr_trigger_stage *stage1 = stages->data;
 533                 if (stages->next) {
 534                         sr_err("Only one trigger stage supported for now.");
 535                         return SR_ERR;
 536                 }
 537                 cmd_pkt->trig_flags.enable_trigger1 = 1;
 538                 cmd_pkt->trigger[0].flags.edge_type = H4032L_TRIGGER_EDGE_TYPE_DISABLED;
 539                 cmd_pkt->trigger[0].flags.data_range_enabled = 0;
 540                 cmd_pkt->trigger[0].flags.time_range_enabled = 0;
 541                 cmd_pkt->trigger[0].flags.combined_enabled = 0;
 542                 cmd_pkt->trigger[0].flags.data_range_type = H4032L_TRIGGER_DATA_RANGE_TYPE_MAX;
 543                 cmd_pkt->trigger[0].data_range_mask = 0;
 544                 cmd_pkt->trigger[0].data_range_max = 0;
 545
 546                 /* Initialize range mask values. */
 547                 uint32_t range_mask = 0;
 548                 uint32_t range_value = 0;
 549
 550                 GSList *channel = stage1->matches;
 551                 while (channel) {
 552                         struct sr_trigger_match *match = channel->data;
 553
 554                         switch (match->match) {
 555                         case SR_TRIGGER_ZERO:
 556                                 range_mask |= (1 << match->channel->index);
 557                                 break;
 558                         case SR_TRIGGER_ONE:
 559                                 range_mask |= (1 << match->channel->index);
 560                                 range_value |= (1 << match->channel->index);
 561                                 break;
 562                         case SR_TRIGGER_RISING:
 563                                 if (cmd_pkt->trigger[0].flags.edge_type != H4032L_TRIGGER_EDGE_TYPE_DISABLED) {
 564                                         sr_err("Only one trigger signal with fall/rising/edge allowed.");
 565                                         return SR_ERR;
 566                                 }
 567                                 cmd_pkt->trigger[0].flags.edge_type = H4032L_TRIGGER_EDGE_TYPE_RISE;
 568                                 cmd_pkt->trigger[0].flags.edge_signal = match->channel->index;
 569                                 break;
 570                         case SR_TRIGGER_FALLING:
 571                                 if (cmd_pkt->trigger[0].flags.edge_type != H4032L_TRIGGER_EDGE_TYPE_DISABLED) {
 572                                         sr_err("Only one trigger signal with fall/rising/edge allowed.");
 573                                         return SR_ERR;
 574                                 }
 575                                 cmd_pkt->trigger[0].flags.edge_type = H4032L_TRIGGER_EDGE_TYPE_FALL;
 576                                 cmd_pkt->trigger[0].flags.edge_signal = match->channel->index;
 577                                 break;
 578                         case SR_TRIGGER_EDGE:
 579                                 if (cmd_pkt->trigger[0].flags.edge_type != H4032L_TRIGGER_EDGE_TYPE_DISABLED) {
 580                                         sr_err("Only one trigger signal with fall/rising/edge allowed.");
 581                                         return SR_ERR;
 582                                 }
 583                                 cmd_pkt->trigger[0].flags.edge_type = H4032L_TRIGGER_EDGE_TYPE_TOGGLE;
 584                                 cmd_pkt->trigger[0].flags.edge_signal = match->channel->index;
 585                                 break;
 586                         default:
 587                                 sr_err("Unknown trigger value.");
 588                                 return SR_ERR;
 589                         }
 590
 591                         channel = channel->next;
 592                 }
 593
 594                 /* Compress range mask value and apply range settings. */
 595                 if (range_mask) {
 596                         cmd_pkt->trigger[0].flags.data_range_enabled = 1;
 597                         cmd_pkt->trigger[0].data_range_mask |= (range_mask);
 598
 599                         uint32_t new_range_value = 0;
 600                         uint32_t bit_mask = 1;
 601                         while (range_mask) {
 602                                 if ((range_mask & 1) != 0) {
 603                                         new_range_value <<= 1;
 604                                         if ((range_value & 1) != 0)
 605                                                 new_range_value |= bit_mask;
 606                                         bit_mask <<= 1;
 607                                 }
 608                                 range_mask >>= 1;
 609                                 range_value >>= 1;
 610                         }
 611                         cmd_pkt->trigger[0].data_range_max |= range_value;
 612                 }
 613         }
 614
 615         usb_source_add(sdi->session, drvc->sr_ctx, 1000,
 616                 h4032l_receive_data, sdi->driver->context);
 617
 618         /* Start capturing. */
 619         return h4032l_start(sdi);
 620 }
 621
 622 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 623 {
 624         /* Stop capturing. */
 625         return h4032l_stop(sdi);
 626 }
 627
 628 SR_PRIV struct sr_dev_driver hantek_4032l_driver_info = {
 629         .name = "hantek-4032l",
 630         .longname = "Hantek 4032L",
 631         .api_version = 1,
 632         .init = std_init,
 633         .cleanup = std_cleanup,
 634         .scan = scan,
 635         .dev_list = std_dev_list,
 636         .dev_clear = std_dev_clear,
 637         .config_get = config_get,
 638         .config_set = config_set,
 639         .config_list = config_list,
 640         .dev_open = dev_open,
 641         .dev_close = dev_close,
 642         .dev_acquisition_start = dev_acquisition_start,
 643         .dev_acquisition_stop = dev_acquisition_stop,
 644         .context = NULL,
 645 };
 646 SR_REGISTER_DEV_DRIVER(hantek_4032l_driver_info);