src/hardware/fx2lafw/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
   5  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22 #include "protocol.h"
  23 #include "dslogic.h"
  24
  25 static const struct fx2lafw_profile supported_fx2[] = {
  26         /*
  27          * CWAV USBee AX
  28          * EE Electronics ESLA201A
  29          * ARMFLY AX-Pro
  30          */
  31         { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
  32                 "fx2lafw-cwav-usbeeax.fw",
  33                 DEV_CAPS_AX_ANALOG, NULL, NULL},
  34         /*
  35          * CWAV USBee DX
  36          * XZL-Studio DX
  37          */
  38         { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
  39                 "fx2lafw-cwav-usbeedx.fw",
  40                 DEV_CAPS_16BIT, NULL, NULL },
  41
  42         /*
  43          * CWAV USBee SX
  44          */
  45         { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
  46                 "fx2lafw-cwav-usbeesx.fw",
  47                 0, NULL, NULL},
  48
  49         /* DreamSourceLab DSLogic (before FW upload) */
  50         { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
  51                 "dreamsourcelab-dslogic-fx2.fw",
  52                 DEV_CAPS_16BIT, NULL, NULL},
  53         /* DreamSourceLab DSLogic (after FW upload) */
  54         { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
  55                 "dreamsourcelab-dslogic-fx2.fw",
  56                 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
  57
  58         /* DreamSourceLab DSCope (before FW upload) */
  59         { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
  60                 "dreamsourcelab-dscope-fx2.fw",
  61                 DEV_CAPS_16BIT, NULL, NULL},
  62         /* DreamSourceLab DSCope (after FW upload) */
  63         { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
  64                 "dreamsourcelab-dscope-fx2.fw",
  65                 DEV_CAPS_16BIT, "DreamSourceLab", "DSCope"},
  66
  67         /* DreamSourceLab DSLogic Pro (before FW upload) */
  68         { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
  69                 "dreamsourcelab-dslogic-pro-fx2.fw",
  70                 DEV_CAPS_16BIT, NULL, NULL},
  71         /* DreamSourceLab DSLogic Pro (after FW upload) */
  72         { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
  73                 "dreamsourcelab-dslogic-pro-fx2.fw",
  74                 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
  75
  76         /*
  77          * Saleae Logic
  78          * EE Electronics ESLA100
  79          * Robomotic MiniLogic
  80          * Robomotic BugLogic 3
  81          */
  82         { 0x0925, 0x3881, "Saleae", "Logic", NULL,
  83                 "fx2lafw-saleae-logic.fw",
  84                 0, NULL, NULL},
  85
  86         /*
  87          * Default Cypress FX2 without EEPROM, e.g.:
  88          * Lcsoft Mini Board
  89          * Braintechnology USB Interface V2.x
  90          */
  91         { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
  92                 "fx2lafw-cypress-fx2.fw",
  93                 DEV_CAPS_16BIT, NULL, NULL },
  94
  95         /*
  96          * Braintechnology USB-LPS
  97          */
  98         { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
  99                 "fx2lafw-braintechnology-usb-lps.fw",
 100                 DEV_CAPS_16BIT, NULL, NULL },
 101
 102         /*
 103          * sigrok FX2 based 8-channel logic analyzer
 104          */
 105         { 0x1d50, 0x608c, "sigrok", "FX2 LA (8ch)", NULL,
 106                 "fx2lafw-sigrok-fx2-8ch.fw",
 107                 0, NULL, NULL},
 108
 109         /*
 110          * sigrok FX2 based 16-channel logic analyzer
 111          */
 112         { 0x1d50, 0x608d, "sigrok", "FX2 LA (16ch)", NULL,
 113                 "fx2lafw-sigrok-fx2-16ch.fw",
 114                 DEV_CAPS_16BIT, NULL, NULL },
 115
 116         ALL_ZERO
 117 };
 118
 119 static const uint32_t drvopts[] = {
 120         SR_CONF_LOGIC_ANALYZER,
 121 };
 122
 123 static const uint32_t scanopts[] = {
 124         SR_CONF_CONN,
 125 };
 126
 127 static const uint32_t devopts[] = {
 128         SR_CONF_CONTINUOUS | SR_CONF_SET,
 129         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
 130         SR_CONF_CONN | SR_CONF_GET,
 131         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 132         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
 133         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
 134 };
 135
 136 static const char *channel_names[] = {
 137         "0", "1", "2", "3", "4", "5", "6", "7",
 138         "8", "9", "10", "11", "12", "13", "14", "15",
 139 };
 140
 141 static const char *ax_channel_names[] = {
 142         "A0",
 143 };
 144
 145 static const int32_t soft_trigger_matches[] = {
 146         SR_TRIGGER_ZERO,
 147         SR_TRIGGER_ONE,
 148         SR_TRIGGER_RISING,
 149         SR_TRIGGER_FALLING,
 150         SR_TRIGGER_EDGE,
 151 };
 152
 153 static const uint64_t samplerates[] = {
 154         SR_KHZ(20),
 155         SR_KHZ(25),
 156         SR_KHZ(50),
 157         SR_KHZ(100),
 158         SR_KHZ(200),
 159         SR_KHZ(250),
 160         SR_KHZ(500),
 161         SR_MHZ(1),
 162         SR_MHZ(2),
 163         SR_MHZ(3),
 164         SR_MHZ(4),
 165         SR_MHZ(6),
 166         SR_MHZ(8),
 167         SR_MHZ(12),
 168         SR_MHZ(16),
 169         SR_MHZ(24),
 170 };
 171
 172 static const uint64_t dslogic_samplerates[] = {
 173         SR_KHZ(10),
 174         SR_KHZ(20),
 175         SR_KHZ(50),
 176         SR_KHZ(100),
 177         SR_KHZ(200),
 178         SR_KHZ(500),
 179         SR_MHZ(1),
 180         SR_MHZ(2),
 181         SR_MHZ(5),
 182         SR_MHZ(10),
 183         SR_MHZ(20),
 184         SR_MHZ(25),
 185         SR_MHZ(50),
 186         SR_MHZ(100),
 187         SR_MHZ(200),
 188         SR_MHZ(400),
 189 };
 190
 191 SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 192
 193 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
 194 {
 195         return std_init(sr_ctx, di, LOG_PREFIX);
 196 }
 197
 198 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 199 {
 200         struct drv_context *drvc;
 201         struct dev_context *devc;
 202         struct sr_dev_inst *sdi;
 203         struct sr_usb_dev_inst *usb;
 204         struct sr_config *src;
 205         const struct fx2lafw_profile *prof;
 206         GSList *l, *devices, *conn_devices;
 207         gboolean has_firmware;
 208         struct libusb_device_descriptor des;
 209         libusb_device **devlist;
 210         struct libusb_device_handle *hdl;
 211         int ret, i, j;
 212         int num_logic_channels = 0, num_analog_channels = 0;
 213         const char *conn;
 214         char manufacturer[64], product[64], serial_num[64], connection_id[64];
 215
 216         drvc = di->context;
 217
 218         conn = NULL;
 219         for (l = options; l; l = l->next) {
 220                 src = l->data;
 221                 switch (src->key) {
 222                 case SR_CONF_CONN:
 223                         conn = g_variant_get_string(src->data, NULL);
 224                         break;
 225                 }
 226         }
 227         if (conn)
 228                 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
 229         else
 230                 conn_devices = NULL;
 231
 232         /* Find all fx2lafw compatible devices and upload firmware to them. */
 233         devices = NULL;
 234         libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
 235         for (i = 0; devlist[i]; i++) {
 236                 if (conn) {
 237                         usb = NULL;
 238                         for (l = conn_devices; l; l = l->next) {
 239                                 usb = l->data;
 240                                 if (usb->bus == libusb_get_bus_number(devlist[i])
 241                                         && usb->address == libusb_get_device_address(devlist[i]))
 242                                         break;
 243                         }
 244                         if (!l)
 245                                 /* This device matched none of the ones that
 246                                  * matched the conn specification. */
 247                                 continue;
 248                 }
 249
 250                 libusb_get_device_descriptor( devlist[i], &des);
 251
 252                 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
 253                         continue;
 254
 255                 if (des.iManufacturer == 0) {
 256                         manufacturer[0] = '\0';
 257                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 258                                 des.iManufacturer, (unsigned char *) manufacturer,
 259                                 sizeof(manufacturer))) < 0) {
 260                         sr_warn("Failed to get manufacturer string descriptor: %s.",
 261                                 libusb_error_name(ret));
 262                         continue;
 263                 }
 264
 265                 if (des.iProduct == 0) {
 266                         product[0] = '\0';
 267                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 268                                 des.iProduct, (unsigned char *) product,
 269                                 sizeof(product))) < 0) {
 270                         sr_warn("Failed to get product string descriptor: %s.",
 271                                 libusb_error_name(ret));
 272                         continue;
 273                 }
 274
 275                 if (des.iSerialNumber == 0) {
 276                         serial_num[0] = '\0';
 277                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 278                                 des.iSerialNumber, (unsigned char *) serial_num,
 279                                 sizeof(serial_num))) < 0) {
 280                         sr_warn("Failed to get serial number string descriptor: %s.",
 281                                 libusb_error_name(ret));
 282                         continue;
 283                 }
 284
 285                 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
 286
 287                 libusb_close(hdl);
 288
 289                 prof = NULL;
 290                 for (j = 0; supported_fx2[j].vid; j++) {
 291                         if (des.idVendor == supported_fx2[j].vid &&
 292                                         des.idProduct == supported_fx2[j].pid &&
 293                                         (!supported_fx2[j].usb_manufacturer ||
 294                                          !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
 295                                         (!supported_fx2[j].usb_manufacturer ||
 296                                          !strcmp(product, supported_fx2[j].usb_product))) {
 297                                 prof = &supported_fx2[j];
 298                                 break;
 299                         }
 300                 }
 301
 302                 /* Skip if the device was not found. */
 303                 if (!prof)
 304                         continue;
 305
 306                 sdi = g_malloc0(sizeof(struct sr_dev_inst));
 307                 sdi->status = SR_ST_INITIALIZING;
 308                 sdi->vendor = g_strdup(prof->vendor);
 309                 sdi->model = g_strdup(prof->model);
 310                 sdi->version = g_strdup(prof->model_version);
 311                 sdi->driver = di;
 312                 sdi->serial_num = g_strdup(serial_num);
 313                 sdi->connection_id = g_strdup(connection_id);
 314
 315                 /* Fill in channellist according to this device's profile. */
 316                 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
 317                 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
 318
 319                 for (j = 0; j < num_logic_channels; j++)
 320                         sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
 321                                         channel_names[j]);
 322
 323                 for (j = 0; j < num_analog_channels; j++)
 324                         sr_channel_new(sdi, j, SR_CHANNEL_ANALOG, TRUE,
 325                                         ax_channel_names[j]);
 326
 327                 devc = fx2lafw_dev_new();
 328                 devc->profile = prof;
 329                 devc->sample_wide = (prof->dev_caps & DEV_CAPS_16BIT) != 0;
 330                 sdi->priv = devc;
 331                 drvc->instances = g_slist_append(drvc->instances, sdi);
 332                 devices = g_slist_append(devices, sdi);
 333
 334                 if (!strcmp(prof->model, "DSLogic")
 335                                 || !strcmp(prof->model, "DSLogic Pro")
 336                                 || !strcmp(prof->model, "DSCope")) {
 337                         devc->dslogic = TRUE;
 338                         devc->samplerates = dslogic_samplerates;
 339                         devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
 340                         has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
 341                                         || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
 342                 } else {
 343                         devc->dslogic = FALSE;
 344                         devc->samplerates = samplerates;
 345                         devc->num_samplerates = ARRAY_SIZE(samplerates);
 346                         has_firmware = match_manuf_prod(devlist[i],
 347                                         "sigrok", "fx2lafw");
 348                 }
 349
 350                 if (has_firmware) {
 351                         /* Already has the firmware, so fix the new address. */
 352                         sr_dbg("Found an fx2lafw device.");
 353                         sdi->status = SR_ST_INACTIVE;
 354                         sdi->inst_type = SR_INST_USB;
 355                         sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 356                                         libusb_get_device_address(devlist[i]), NULL);
 357                 } else {
 358                         if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
 359                                         USB_CONFIGURATION, prof->firmware) == SR_OK)
 360                                 /* Store when this device's FW was updated. */
 361                                 devc->fw_updated = g_get_monotonic_time();
 362                         else
 363                                 sr_err("Firmware upload failed for "
 364                                        "device %d.%d (logical).",
 365                                        libusb_get_bus_number(devlist[i]),
 366                                        libusb_get_device_address(devlist[i]));
 367                         sdi->inst_type = SR_INST_USB;
 368                         sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 369                                         0xff, NULL);
 370                 }
 371         }
 372         libusb_free_device_list(devlist, 1);
 373         g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
 374
 375         return devices;
 376 }
 377
 378 static GSList *dev_list(const struct sr_dev_driver *di)
 379 {
 380         return ((struct drv_context *)(di->context))->instances;
 381 }
 382
 383 static int dev_open(struct sr_dev_inst *sdi)
 384 {
 385         struct sr_dev_driver *di = sdi->driver;
 386         struct sr_usb_dev_inst *usb;
 387         struct dev_context *devc;
 388         const char *fpga_firmware = NULL;
 389         int ret;
 390         int64_t timediff_us, timediff_ms;
 391
 392         devc = sdi->priv;
 393         usb = sdi->conn;
 394
 395         /*
 396          * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
 397          * milliseconds for the FX2 to renumerate.
 398          */
 399         ret = SR_ERR;
 400         if (devc->fw_updated > 0) {
 401                 sr_info("Waiting for device to reset.");
 402                 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
 403                 g_usleep(300 * 1000);
 404                 timediff_ms = 0;
 405                 while (timediff_ms < MAX_RENUM_DELAY_MS) {
 406                         if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
 407                                 break;
 408                         g_usleep(100 * 1000);
 409
 410                         timediff_us = g_get_monotonic_time() - devc->fw_updated;
 411                         timediff_ms = timediff_us / 1000;
 412                         sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
 413                 }
 414                 if (ret != SR_OK) {
 415                         sr_err("Device failed to renumerate.");
 416                         return SR_ERR;
 417                 }
 418                 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
 419         } else {
 420                 sr_info("Firmware upload was not needed.");
 421                 ret = fx2lafw_dev_open(sdi, di);
 422         }
 423
 424         if (ret != SR_OK) {
 425                 sr_err("Unable to open device.");
 426                 return SR_ERR;
 427         }
 428
 429         ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 430         if (ret != 0) {
 431                 switch (ret) {
 432                 case LIBUSB_ERROR_BUSY:
 433                         sr_err("Unable to claim USB interface. Another "
 434                                "program or driver has already claimed it.");
 435                         break;
 436                 case LIBUSB_ERROR_NO_DEVICE:
 437                         sr_err("Device has been disconnected.");
 438                         break;
 439                 default:
 440                         sr_err("Unable to claim interface: %s.",
 441                                libusb_error_name(ret));
 442                         break;
 443                 }
 444
 445                 return SR_ERR;
 446         }
 447
 448         if (devc->dslogic) {
 449                 if (!strcmp(devc->profile->model, "DSLogic")) {
 450                         fpga_firmware = DSLOGIC_FPGA_FIRMWARE;
 451                 } else if (!strcmp(devc->profile->model, "DSLogic Pro")) {
 452                         fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
 453                 } else if (!strcmp(devc->profile->model, "DSCope")) {
 454                         fpga_firmware = DSCOPE_FPGA_FIRMWARE;
 455                 }
 456
 457                 if ((ret = dslogic_fpga_firmware_upload(sdi,
 458                                 fpga_firmware)) != SR_OK)
 459                         return ret;
 460         }
 461
 462         if (devc->cur_samplerate == 0) {
 463                 /* Samplerate hasn't been set; default to the slowest one. */
 464                 devc->cur_samplerate = devc->samplerates[0];
 465         }
 466
 467         return SR_OK;
 468 }
 469
 470 static int dev_close(struct sr_dev_inst *sdi)
 471 {
 472         struct sr_usb_dev_inst *usb;
 473
 474         usb = sdi->conn;
 475         if (!usb->devhdl)
 476                 return SR_ERR;
 477
 478         sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
 479                 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 480         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 481         libusb_close(usb->devhdl);
 482         usb->devhdl = NULL;
 483         sdi->status = SR_ST_INACTIVE;
 484
 485         return SR_OK;
 486 }
 487
 488 static int cleanup(const struct sr_dev_driver *di)
 489 {
 490         int ret;
 491         struct drv_context *drvc;
 492
 493         if (!(drvc = di->context))
 494                 return SR_OK;
 495
 496         ret = std_dev_clear(di, NULL);
 497
 498         g_free(drvc);
 499
 500         return ret;
 501 }
 502
 503 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 504                 const struct sr_channel_group *cg)
 505 {
 506         struct dev_context *devc;
 507         struct sr_usb_dev_inst *usb;
 508         char str[128];
 509
 510         (void)cg;
 511
 512         if (!sdi)
 513                 return SR_ERR_ARG;
 514
 515         devc = sdi->priv;
 516
 517         switch (key) {
 518         case SR_CONF_CONN:
 519                 if (!sdi->conn)
 520                         return SR_ERR_ARG;
 521                 usb = sdi->conn;
 522                 if (usb->address == 255)
 523                         /* Device still needs to re-enumerate after firmware
 524                          * upload, so we don't know its (future) address. */
 525                         return SR_ERR;
 526                 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
 527                 *data = g_variant_new_string(str);
 528                 break;
 529         case SR_CONF_LIMIT_SAMPLES:
 530                 *data = g_variant_new_uint64(devc->limit_samples);
 531                 break;
 532         case SR_CONF_SAMPLERATE:
 533                 *data = g_variant_new_uint64(devc->cur_samplerate);
 534                 break;
 535         case SR_CONF_CAPTURE_RATIO:
 536                 *data = g_variant_new_uint64(devc->capture_ratio);
 537                 break;
 538         default:
 539                 return SR_ERR_NA;
 540         }
 541
 542         return SR_OK;
 543 }
 544
 545 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 546                 const struct sr_channel_group *cg)
 547 {
 548         struct dev_context *devc;
 549         uint64_t arg;
 550         int i, ret;
 551
 552         (void)cg;
 553
 554         if (!sdi)
 555                 return SR_ERR_ARG;
 556
 557         if (sdi->status != SR_ST_ACTIVE)
 558                 return SR_ERR;
 559
 560         devc = sdi->priv;
 561
 562         ret = SR_OK;
 563
 564         switch (key) {
 565         case SR_CONF_SAMPLERATE:
 566                 arg = g_variant_get_uint64(data);
 567                 for (i = 0; i < devc->num_samplerates; i++) {
 568                         if (devc->samplerates[i] == arg) {
 569                                 devc->cur_samplerate = arg;
 570                                 break;
 571                         }
 572                 }
 573                 if (i == devc->num_samplerates)
 574                         ret = SR_ERR_ARG;
 575                 break;
 576         case SR_CONF_LIMIT_SAMPLES:
 577                 devc->limit_samples = g_variant_get_uint64(data);
 578                 break;
 579         case SR_CONF_CAPTURE_RATIO:
 580                 devc->capture_ratio = g_variant_get_uint64(data);
 581                 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
 582                 break;
 583         default:
 584                 ret = SR_ERR_NA;
 585         }
 586
 587         return ret;
 588 }
 589
 590 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 591                 const struct sr_channel_group *cg)
 592 {
 593         struct dev_context *devc;
 594         GVariant *gvar;
 595         GVariantBuilder gvb;
 596
 597         (void)cg;
 598
 599         switch (key) {
 600         case SR_CONF_SCAN_OPTIONS:
 601                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 602                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 603                 break;
 604         case SR_CONF_DEVICE_OPTIONS:
 605                 if (!sdi)
 606                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 607                                         drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 608                 else
 609                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 610                                         devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 611                 break;
 612         case SR_CONF_SAMPLERATE:
 613                 if (!sdi->priv)
 614                         return SR_ERR_ARG;
 615                 devc = sdi->priv;
 616                 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
 617                 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
 618                                 devc->num_samplerates, sizeof(uint64_t));
 619                 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
 620                 *data = g_variant_builder_end(&gvb);
 621                 break;
 622         case SR_CONF_TRIGGER_MATCH:
 623                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 624                                 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
 625                                 sizeof(int32_t));
 626                 break;
 627         default:
 628                 return SR_ERR_NA;
 629         }
 630
 631         return SR_OK;
 632 }
 633
 634 static int receive_data(int fd, int revents, void *cb_data)
 635 {
 636         struct timeval tv;
 637         struct drv_context *drvc;
 638
 639         (void)fd;
 640         (void)revents;
 641
 642         drvc = (struct drv_context *)cb_data;
 643
 644         tv.tv_sec = tv.tv_usec = 0;
 645         libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
 646
 647         return TRUE;
 648 }
 649
 650 static int start_transfers(const struct sr_dev_inst *sdi)
 651 {
 652         struct dev_context *devc;
 653         struct sr_usb_dev_inst *usb;
 654         struct sr_trigger *trigger;
 655         struct libusb_transfer *transfer;
 656         unsigned int i, num_transfers;
 657         int endpoint, timeout, ret;
 658         unsigned char *buf;
 659         size_t size;
 660
 661         devc = sdi->priv;
 662         usb = sdi->conn;
 663
 664         devc->sent_samples = 0;
 665         devc->acq_aborted = FALSE;
 666         devc->empty_transfer_count = 0;
 667
 668         if ((trigger = sr_session_trigger_get(sdi->session))) {
 669                 int pre_trigger_samples = 0;
 670                 if (devc->limit_samples > 0)
 671                         pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
 672                 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
 673                 if (!devc->stl)
 674                         return SR_ERR_MALLOC;
 675                 devc->trigger_fired = FALSE;
 676         } else
 677                 devc->trigger_fired = TRUE;
 678
 679         num_transfers = fx2lafw_get_number_of_transfers(devc);
 680         size = fx2lafw_get_buffer_size(devc);
 681         devc->submitted_transfers = 0;
 682
 683         devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
 684         if (!devc->transfers) {
 685                 sr_err("USB transfers malloc failed.");
 686                 return SR_ERR_MALLOC;
 687         }
 688
 689         timeout = fx2lafw_get_timeout(devc);
 690         endpoint = devc->dslogic ? 6 : 2;
 691         devc->num_transfers = num_transfers;
 692         for (i = 0; i < num_transfers; i++) {
 693                 if (!(buf = g_try_malloc(size))) {
 694                         sr_err("USB transfer buffer malloc failed.");
 695                         return SR_ERR_MALLOC;
 696                 }
 697                 transfer = libusb_alloc_transfer(0);
 698                 libusb_fill_bulk_transfer(transfer, usb->devhdl,
 699                                 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
 700                                 fx2lafw_receive_transfer, (void *)sdi, timeout);
 701                 if ((ret = libusb_submit_transfer(transfer)) != 0) {
 702                         sr_err("Failed to submit transfer: %s.",
 703                                libusb_error_name(ret));
 704                         libusb_free_transfer(transfer);
 705                         g_free(buf);
 706                         fx2lafw_abort_acquisition(devc);
 707                         return SR_ERR;
 708                 }
 709                 devc->transfers[i] = transfer;
 710                 devc->submitted_transfers++;
 711         }
 712
 713         if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG)
 714                 devc->send_data_proc = mso_send_data_proc;
 715         else
 716                 devc->send_data_proc = la_send_data_proc;
 717
 718         /* Send header packet to the session bus. */
 719         std_session_send_df_header(sdi, LOG_PREFIX);
 720
 721         return SR_OK;
 722 }
 723
 724 static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
 725 {
 726         const struct sr_dev_inst *sdi;
 727         struct sr_datafeed_packet packet;
 728         struct dslogic_trigger_pos *tpos;
 729         struct dev_context *devc;
 730
 731         sdi = transfer->user_data;
 732         devc = sdi->priv;
 733         if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
 734                 sr_dbg("Trigger transfer canceled.");
 735                 /* Terminate session. */
 736                 packet.type = SR_DF_END;
 737                 sr_session_send(sdi, &packet);
 738                 usb_source_remove(sdi->session, devc->ctx);
 739                 devc->num_transfers = 0;
 740                 g_free(devc->transfers);
 741                 if (devc->stl) {
 742                         soft_trigger_logic_free(devc->stl);
 743                         devc->stl = NULL;
 744                 }
 745         } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
 746                         && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
 747                 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
 748                 sr_dbg("tpos real_pos %.8x ram_saddr %.8x", tpos->real_pos, tpos->ram_saddr);
 749                 g_free(tpos);
 750                 start_transfers(sdi);
 751         }
 752
 753         libusb_free_transfer(transfer);
 754
 755 }
 756
 757 static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
 758 {
 759         struct sr_usb_dev_inst *usb;
 760         struct libusb_transfer *transfer;
 761         struct dslogic_trigger_pos *tpos;
 762         struct dev_context *devc;
 763         int ret;
 764
 765         usb = sdi->conn;
 766         devc = sdi->priv;
 767
 768         if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
 769                 return ret;
 770
 771         if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
 772                 return ret;
 773
 774         if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
 775                 return ret;
 776
 777         sr_dbg("Getting trigger.");
 778         tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
 779         transfer = libusb_alloc_transfer(0);
 780         libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
 781                         (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
 782                         dslogic_trigger_receive, (void *)sdi, 0);
 783         if ((ret = libusb_submit_transfer(transfer)) < 0) {
 784                 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
 785                 libusb_free_transfer(transfer);
 786                 g_free(tpos);
 787                 return SR_ERR;
 788         }
 789
 790         devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
 791         if (!devc->transfers) {
 792                 sr_err("USB trigger_pos transfer malloc failed.");
 793                 return SR_ERR_MALLOC;
 794         }
 795         devc->num_transfers = 1;
 796         devc->submitted_transfers++;
 797         devc->transfers[0] = transfer;
 798
 799         return ret;
 800 }
 801
 802 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 803 {
 804         struct sr_dev_driver *di;
 805         struct drv_context *drvc;
 806         struct dev_context *devc;
 807         int timeout, ret;
 808         size_t size;
 809
 810         if (sdi->status != SR_ST_ACTIVE)
 811                 return SR_ERR_DEV_CLOSED;
 812
 813         di = sdi->driver;
 814         drvc = di->context;
 815         devc = sdi->priv;
 816
 817         devc->ctx = drvc->sr_ctx;
 818         devc->cb_data = cb_data;
 819         devc->sent_samples = 0;
 820         devc->empty_transfer_count = 0;
 821         devc->acq_aborted = FALSE;
 822
 823         timeout = fx2lafw_get_timeout(devc);
 824         usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
 825
 826         if (devc->dslogic) {
 827                 dslogic_trigger_request(sdi);
 828         } else {
 829                 size = fx2lafw_get_buffer_size(devc);
 830                 /* Prepare for analog sampling. */
 831                 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) {
 832                         /* We need a buffer half the size of a transfer. */
 833                         devc->logic_buffer = g_try_malloc(size / 2);
 834                         devc->analog_buffer = g_try_malloc(
 835                                 sizeof(float) * size / 2);
 836                 }
 837                 start_transfers(sdi);
 838                 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
 839                         fx2lafw_abort_acquisition(devc);
 840                         return ret;
 841                 }
 842         }
 843
 844         return SR_OK;
 845 }
 846
 847 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 848 {
 849         struct dev_context *devc;
 850
 851         (void)cb_data;
 852
 853         devc = sdi->priv;
 854
 855         if (devc->dslogic)
 856                 dslogic_stop_acquisition(sdi);
 857
 858         fx2lafw_abort_acquisition(sdi->priv);
 859
 860         return SR_OK;
 861 }
 862
 863 SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
 864         .name = "fx2lafw",
 865         .longname = "fx2lafw (generic driver for FX2 based LAs)",
 866         .api_version = 1,
 867         .init = init,
 868         .cleanup = cleanup,
 869         .scan = scan,
 870         .dev_list = dev_list,
 871         .dev_clear = NULL,
 872         .config_get = config_get,
 873         .config_set = config_set,
 874         .config_list = config_list,
 875         .dev_open = dev_open,
 876         .dev_close = dev_close,
 877         .dev_acquisition_start = dev_acquisition_start,
 878         .dev_acquisition_stop = dev_acquisition_stop,
 879         .context = NULL,
 880 };