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 int32_t soft_trigger_matches[] = {
 137         SR_TRIGGER_ZERO,
 138         SR_TRIGGER_ONE,
 139         SR_TRIGGER_RISING,
 140         SR_TRIGGER_FALLING,
 141         SR_TRIGGER_EDGE,
 142 };
 143
 144 static const uint64_t samplerates[] = {
 145         SR_KHZ(20),
 146         SR_KHZ(25),
 147         SR_KHZ(50),
 148         SR_KHZ(100),
 149         SR_KHZ(200),
 150         SR_KHZ(250),
 151         SR_KHZ(500),
 152         SR_MHZ(1),
 153         SR_MHZ(2),
 154         SR_MHZ(3),
 155         SR_MHZ(4),
 156         SR_MHZ(6),
 157         SR_MHZ(8),
 158         SR_MHZ(12),
 159         SR_MHZ(16),
 160         SR_MHZ(24),
 161 };
 162
 163 static const uint64_t dslogic_samplerates[] = {
 164         SR_KHZ(10),
 165         SR_KHZ(20),
 166         SR_KHZ(50),
 167         SR_KHZ(100),
 168         SR_KHZ(200),
 169         SR_KHZ(500),
 170         SR_MHZ(1),
 171         SR_MHZ(2),
 172         SR_MHZ(5),
 173         SR_MHZ(10),
 174         SR_MHZ(20),
 175         SR_MHZ(25),
 176         SR_MHZ(50),
 177         SR_MHZ(100),
 178         SR_MHZ(200),
 179         SR_MHZ(400),
 180 };
 181
 182 SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 183
 184 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
 185 {
 186         return std_init(sr_ctx, di, LOG_PREFIX);
 187 }
 188
 189 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 190 {
 191         struct drv_context *drvc;
 192         struct dev_context *devc;
 193         struct sr_dev_inst *sdi;
 194         struct sr_usb_dev_inst *usb;
 195         struct sr_channel *ch;
 196         struct sr_channel_group *cg;
 197         struct sr_config *src;
 198         const struct fx2lafw_profile *prof;
 199         GSList *l, *devices, *conn_devices;
 200         gboolean has_firmware;
 201         struct libusb_device_descriptor des;
 202         libusb_device **devlist;
 203         struct libusb_device_handle *hdl;
 204         int ret, i, j;
 205         int num_logic_channels = 0, num_analog_channels = 0;
 206         const char *conn;
 207         char manufacturer[64], product[64], serial_num[64], connection_id[64];
 208         char channel_name[16];
 209
 210         drvc = di->context;
 211
 212         conn = NULL;
 213         for (l = options; l; l = l->next) {
 214                 src = l->data;
 215                 switch (src->key) {
 216                 case SR_CONF_CONN:
 217                         conn = g_variant_get_string(src->data, NULL);
 218                         break;
 219                 }
 220         }
 221         if (conn)
 222                 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
 223         else
 224                 conn_devices = NULL;
 225
 226         /* Find all fx2lafw compatible devices and upload firmware to them. */
 227         devices = NULL;
 228         libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
 229         for (i = 0; devlist[i]; i++) {
 230                 if (conn) {
 231                         usb = NULL;
 232                         for (l = conn_devices; l; l = l->next) {
 233                                 usb = l->data;
 234                                 if (usb->bus == libusb_get_bus_number(devlist[i])
 235                                         && usb->address == libusb_get_device_address(devlist[i]))
 236                                         break;
 237                         }
 238                         if (!l)
 239                                 /* This device matched none of the ones that
 240                                  * matched the conn specification. */
 241                                 continue;
 242                 }
 243
 244                 libusb_get_device_descriptor( devlist[i], &des);
 245
 246                 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
 247                         continue;
 248
 249                 if (des.iManufacturer == 0) {
 250                         manufacturer[0] = '\0';
 251                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 252                                 des.iManufacturer, (unsigned char *) manufacturer,
 253                                 sizeof(manufacturer))) < 0) {
 254                         sr_warn("Failed to get manufacturer string descriptor: %s.",
 255                                 libusb_error_name(ret));
 256                         continue;
 257                 }
 258
 259                 if (des.iProduct == 0) {
 260                         product[0] = '\0';
 261                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 262                                 des.iProduct, (unsigned char *) product,
 263                                 sizeof(product))) < 0) {
 264                         sr_warn("Failed to get product string descriptor: %s.",
 265                                 libusb_error_name(ret));
 266                         continue;
 267                 }
 268
 269                 if (des.iSerialNumber == 0) {
 270                         serial_num[0] = '\0';
 271                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 272                                 des.iSerialNumber, (unsigned char *) serial_num,
 273                                 sizeof(serial_num))) < 0) {
 274                         sr_warn("Failed to get serial number string descriptor: %s.",
 275                                 libusb_error_name(ret));
 276                         continue;
 277                 }
 278
 279                 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
 280
 281                 libusb_close(hdl);
 282
 283                 prof = NULL;
 284                 for (j = 0; supported_fx2[j].vid; j++) {
 285                         if (des.idVendor == supported_fx2[j].vid &&
 286                                         des.idProduct == supported_fx2[j].pid &&
 287                                         (!supported_fx2[j].usb_manufacturer ||
 288                                          !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
 289                                         (!supported_fx2[j].usb_manufacturer ||
 290                                          !strcmp(product, supported_fx2[j].usb_product))) {
 291                                 prof = &supported_fx2[j];
 292                                 break;
 293                         }
 294                 }
 295
 296                 /* Skip if the device was not found. */
 297                 if (!prof)
 298                         continue;
 299
 300                 sdi = g_malloc0(sizeof(struct sr_dev_inst));
 301                 sdi->status = SR_ST_INITIALIZING;
 302                 sdi->vendor = g_strdup(prof->vendor);
 303                 sdi->model = g_strdup(prof->model);
 304                 sdi->version = g_strdup(prof->model_version);
 305                 sdi->driver = di;
 306                 sdi->serial_num = g_strdup(serial_num);
 307                 sdi->connection_id = g_strdup(connection_id);
 308
 309                 /* Fill in channellist according to this device's profile. */
 310                 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
 311                 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
 312
 313                 /* Logic channels, all in one channel group. */
 314                 cg = g_malloc0(sizeof(struct sr_channel_group));
 315                 cg->name = g_strdup("Logic");
 316                 for (j = 0; j < num_logic_channels; j++) {
 317                         sprintf(channel_name, "D%d", j);
 318                         ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
 319                                                 TRUE, channel_name);
 320                         cg->channels = g_slist_append(cg->channels, ch);
 321                 }
 322                 sdi->channel_groups = g_slist_append(NULL, cg);
 323
 324                 for (j = 0; j < num_analog_channels; j++) {
 325                         snprintf(channel_name, 16, "A%d", j);
 326                         ch = sr_channel_new(sdi, j + num_logic_channels,
 327                                         SR_CHANNEL_ANALOG, TRUE, channel_name);
 328
 329                         /* Every analog channel gets its own channel group. */
 330                         cg = g_malloc0(sizeof(struct sr_channel_group));
 331                         cg->name = g_strdup(channel_name);
 332                         cg->channels = g_slist_append(NULL, ch);
 333                         sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
 334                 }
 335
 336                 devc = fx2lafw_dev_new();
 337                 devc->profile = prof;
 338                 if ((prof->dev_caps & DEV_CAPS_16BIT) || (prof->dev_caps & DEV_CAPS_AX_ANALOG))
 339                         devc->sample_wide = TRUE;
 340                 sdi->priv = devc;
 341                 drvc->instances = g_slist_append(drvc->instances, sdi);
 342                 devices = g_slist_append(devices, sdi);
 343
 344                 if (!strcmp(prof->model, "DSLogic")
 345                                 || !strcmp(prof->model, "DSLogic Pro")
 346                                 || !strcmp(prof->model, "DSCope")) {
 347                         devc->dslogic = TRUE;
 348                         devc->samplerates = dslogic_samplerates;
 349                         devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
 350                         has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
 351                                         || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
 352                 } else {
 353                         devc->dslogic = FALSE;
 354                         devc->samplerates = samplerates;
 355                         devc->num_samplerates = ARRAY_SIZE(samplerates);
 356                         has_firmware = match_manuf_prod(devlist[i],
 357                                         "sigrok", "fx2lafw");
 358                 }
 359
 360                 if (has_firmware) {
 361                         /* Already has the firmware, so fix the new address. */
 362                         sr_dbg("Found an fx2lafw device.");
 363                         sdi->status = SR_ST_INACTIVE;
 364                         sdi->inst_type = SR_INST_USB;
 365                         sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 366                                         libusb_get_device_address(devlist[i]), NULL);
 367                 } else {
 368                         if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
 369                                         USB_CONFIGURATION, prof->firmware) == SR_OK)
 370                                 /* Store when this device's FW was updated. */
 371                                 devc->fw_updated = g_get_monotonic_time();
 372                         else
 373                                 sr_err("Firmware upload failed for "
 374                                        "device %d.%d (logical).",
 375                                        libusb_get_bus_number(devlist[i]),
 376                                        libusb_get_device_address(devlist[i]));
 377                         sdi->inst_type = SR_INST_USB;
 378                         sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 379                                         0xff, NULL);
 380                 }
 381         }
 382         libusb_free_device_list(devlist, 1);
 383         g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
 384
 385         return devices;
 386 }
 387
 388 static void clear_dev_context(void *priv)
 389 {
 390         struct dev_context *devc;
 391
 392         devc = priv;
 393         g_slist_free(devc->enabled_analog_channels);
 394         g_free(devc);
 395 }
 396
 397 static int dev_clear(const struct sr_dev_driver *di)
 398 {
 399         return std_dev_clear(di, clear_dev_context);
 400 }
 401
 402 static GSList *dev_list(const struct sr_dev_driver *di)
 403 {
 404         return ((struct drv_context *)(di->context))->instances;
 405 }
 406
 407 static int dev_open(struct sr_dev_inst *sdi)
 408 {
 409         struct sr_dev_driver *di = sdi->driver;
 410         struct sr_usb_dev_inst *usb;
 411         struct dev_context *devc;
 412         const char *fpga_firmware = NULL;
 413         int ret;
 414         int64_t timediff_us, timediff_ms;
 415
 416         devc = sdi->priv;
 417         usb = sdi->conn;
 418
 419         /*
 420          * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
 421          * milliseconds for the FX2 to renumerate.
 422          */
 423         ret = SR_ERR;
 424         if (devc->fw_updated > 0) {
 425                 sr_info("Waiting for device to reset.");
 426                 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
 427                 g_usleep(300 * 1000);
 428                 timediff_ms = 0;
 429                 while (timediff_ms < MAX_RENUM_DELAY_MS) {
 430                         if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
 431                                 break;
 432                         g_usleep(100 * 1000);
 433
 434                         timediff_us = g_get_monotonic_time() - devc->fw_updated;
 435                         timediff_ms = timediff_us / 1000;
 436                         sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
 437                 }
 438                 if (ret != SR_OK) {
 439                         sr_err("Device failed to renumerate.");
 440                         return SR_ERR;
 441                 }
 442                 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
 443         } else {
 444                 sr_info("Firmware upload was not needed.");
 445                 ret = fx2lafw_dev_open(sdi, di);
 446         }
 447
 448         if (ret != SR_OK) {
 449                 sr_err("Unable to open device.");
 450                 return SR_ERR;
 451         }
 452
 453         ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 454         if (ret != 0) {
 455                 switch (ret) {
 456                 case LIBUSB_ERROR_BUSY:
 457                         sr_err("Unable to claim USB interface. Another "
 458                                "program or driver has already claimed it.");
 459                         break;
 460                 case LIBUSB_ERROR_NO_DEVICE:
 461                         sr_err("Device has been disconnected.");
 462                         break;
 463                 default:
 464                         sr_err("Unable to claim interface: %s.",
 465                                libusb_error_name(ret));
 466                         break;
 467                 }
 468
 469                 return SR_ERR;
 470         }
 471
 472         if (devc->dslogic) {
 473                 if (!strcmp(devc->profile->model, "DSLogic")) {
 474                         fpga_firmware = DSLOGIC_FPGA_FIRMWARE;
 475                 } else if (!strcmp(devc->profile->model, "DSLogic Pro")) {
 476                         fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
 477                 } else if (!strcmp(devc->profile->model, "DSCope")) {
 478                         fpga_firmware = DSCOPE_FPGA_FIRMWARE;
 479                 }
 480
 481                 if ((ret = dslogic_fpga_firmware_upload(sdi,
 482                                 fpga_firmware)) != SR_OK)
 483                         return ret;
 484         }
 485
 486         if (devc->cur_samplerate == 0) {
 487                 /* Samplerate hasn't been set; default to the slowest one. */
 488                 devc->cur_samplerate = devc->samplerates[0];
 489         }
 490
 491         return SR_OK;
 492 }
 493
 494 static int dev_close(struct sr_dev_inst *sdi)
 495 {
 496         struct sr_usb_dev_inst *usb;
 497
 498         usb = sdi->conn;
 499         if (!usb->devhdl)
 500                 return SR_ERR;
 501
 502         sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
 503                 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 504         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 505         libusb_close(usb->devhdl);
 506         usb->devhdl = NULL;
 507         sdi->status = SR_ST_INACTIVE;
 508
 509         return SR_OK;
 510 }
 511
 512 static int cleanup(const struct sr_dev_driver *di)
 513 {
 514         int ret;
 515         struct drv_context *drvc;
 516
 517         if (!(drvc = di->context))
 518                 return SR_OK;
 519
 520         ret = std_dev_clear(di, NULL);
 521
 522         g_free(drvc);
 523
 524         return ret;
 525 }
 526
 527 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 528                 const struct sr_channel_group *cg)
 529 {
 530         struct dev_context *devc;
 531         struct sr_usb_dev_inst *usb;
 532         char str[128];
 533
 534         (void)cg;
 535
 536         if (!sdi)
 537                 return SR_ERR_ARG;
 538
 539         devc = sdi->priv;
 540
 541         switch (key) {
 542         case SR_CONF_CONN:
 543                 if (!sdi->conn)
 544                         return SR_ERR_ARG;
 545                 usb = sdi->conn;
 546                 if (usb->address == 255)
 547                         /* Device still needs to re-enumerate after firmware
 548                          * upload, so we don't know its (future) address. */
 549                         return SR_ERR;
 550                 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
 551                 *data = g_variant_new_string(str);
 552                 break;
 553         case SR_CONF_LIMIT_SAMPLES:
 554                 *data = g_variant_new_uint64(devc->limit_samples);
 555                 break;
 556         case SR_CONF_SAMPLERATE:
 557                 *data = g_variant_new_uint64(devc->cur_samplerate);
 558                 break;
 559         case SR_CONF_CAPTURE_RATIO:
 560                 *data = g_variant_new_uint64(devc->capture_ratio);
 561                 break;
 562         default:
 563                 return SR_ERR_NA;
 564         }
 565
 566         return SR_OK;
 567 }
 568
 569 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 570                 const struct sr_channel_group *cg)
 571 {
 572         struct dev_context *devc;
 573         uint64_t arg;
 574         int i, ret;
 575
 576         (void)cg;
 577
 578         if (!sdi)
 579                 return SR_ERR_ARG;
 580
 581         if (sdi->status != SR_ST_ACTIVE)
 582                 return SR_ERR;
 583
 584         devc = sdi->priv;
 585
 586         ret = SR_OK;
 587
 588         switch (key) {
 589         case SR_CONF_SAMPLERATE:
 590                 arg = g_variant_get_uint64(data);
 591                 for (i = 0; i < devc->num_samplerates; i++) {
 592                         if (devc->samplerates[i] == arg) {
 593                                 devc->cur_samplerate = arg;
 594                                 break;
 595                         }
 596                 }
 597                 if (i == devc->num_samplerates)
 598                         ret = SR_ERR_ARG;
 599                 break;
 600         case SR_CONF_LIMIT_SAMPLES:
 601                 devc->limit_samples = g_variant_get_uint64(data);
 602                 break;
 603         case SR_CONF_CAPTURE_RATIO:
 604                 devc->capture_ratio = g_variant_get_uint64(data);
 605                 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
 606                 break;
 607         default:
 608                 ret = SR_ERR_NA;
 609         }
 610
 611         return ret;
 612 }
 613
 614 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 615                 const struct sr_channel_group *cg)
 616 {
 617         struct dev_context *devc;
 618         GVariant *gvar;
 619         GVariantBuilder gvb;
 620
 621         (void)cg;
 622
 623         switch (key) {
 624         case SR_CONF_SCAN_OPTIONS:
 625                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 626                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 627                 break;
 628         case SR_CONF_DEVICE_OPTIONS:
 629                 if (!sdi)
 630                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 631                                         drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 632                 else
 633                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 634                                         devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 635                 break;
 636         case SR_CONF_SAMPLERATE:
 637                 if (!sdi->priv)
 638                         return SR_ERR_ARG;
 639                 devc = sdi->priv;
 640                 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
 641                 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
 642                                 devc->num_samplerates, sizeof(uint64_t));
 643                 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
 644                 *data = g_variant_builder_end(&gvb);
 645                 break;
 646         case SR_CONF_TRIGGER_MATCH:
 647                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 648                                 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
 649                                 sizeof(int32_t));
 650                 break;
 651         default:
 652                 return SR_ERR_NA;
 653         }
 654
 655         return SR_OK;
 656 }
 657
 658 static int receive_data(int fd, int revents, void *cb_data)
 659 {
 660         struct timeval tv;
 661         struct drv_context *drvc;
 662
 663         (void)fd;
 664         (void)revents;
 665
 666         drvc = (struct drv_context *)cb_data;
 667
 668         tv.tv_sec = tv.tv_usec = 0;
 669         libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
 670
 671         return TRUE;
 672 }
 673
 674 static int start_transfers(const struct sr_dev_inst *sdi)
 675 {
 676         struct dev_context *devc;
 677         struct sr_usb_dev_inst *usb;
 678         struct sr_trigger *trigger;
 679         struct libusb_transfer *transfer;
 680         unsigned int i, num_transfers;
 681         int endpoint, timeout, ret;
 682         unsigned char *buf;
 683         size_t size;
 684
 685         devc = sdi->priv;
 686         usb = sdi->conn;
 687
 688         devc->sent_samples = 0;
 689         devc->acq_aborted = FALSE;
 690         devc->empty_transfer_count = 0;
 691
 692         if ((trigger = sr_session_trigger_get(sdi->session))) {
 693                 int pre_trigger_samples = 0;
 694                 if (devc->limit_samples > 0)
 695                         pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
 696                 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
 697                 if (!devc->stl)
 698                         return SR_ERR_MALLOC;
 699                 devc->trigger_fired = FALSE;
 700         } else
 701                 devc->trigger_fired = TRUE;
 702
 703         num_transfers = fx2lafw_get_number_of_transfers(devc);
 704         size = fx2lafw_get_buffer_size(devc);
 705         devc->submitted_transfers = 0;
 706
 707         devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
 708         if (!devc->transfers) {
 709                 sr_err("USB transfers malloc failed.");
 710                 return SR_ERR_MALLOC;
 711         }
 712
 713         timeout = fx2lafw_get_timeout(devc);
 714         endpoint = devc->dslogic ? 6 : 2;
 715         devc->num_transfers = num_transfers;
 716         for (i = 0; i < num_transfers; i++) {
 717                 if (!(buf = g_try_malloc(size))) {
 718                         sr_err("USB transfer buffer malloc failed.");
 719                         return SR_ERR_MALLOC;
 720                 }
 721                 transfer = libusb_alloc_transfer(0);
 722                 libusb_fill_bulk_transfer(transfer, usb->devhdl,
 723                                 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
 724                                 fx2lafw_receive_transfer, (void *)sdi, timeout);
 725                 if ((ret = libusb_submit_transfer(transfer)) != 0) {
 726                         sr_err("Failed to submit transfer: %s.",
 727                                libusb_error_name(ret));
 728                         libusb_free_transfer(transfer);
 729                         g_free(buf);
 730                         fx2lafw_abort_acquisition(devc);
 731                         return SR_ERR;
 732                 }
 733                 devc->transfers[i] = transfer;
 734                 devc->submitted_transfers++;
 735         }
 736
 737         if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG)
 738                 devc->send_data_proc = mso_send_data_proc;
 739         else
 740                 devc->send_data_proc = la_send_data_proc;
 741
 742         std_session_send_df_header(sdi, LOG_PREFIX);
 743
 744         return SR_OK;
 745 }
 746
 747 static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
 748 {
 749         const struct sr_dev_inst *sdi;
 750         struct dslogic_trigger_pos *tpos;
 751         struct dev_context *devc;
 752
 753         sdi = transfer->user_data;
 754         devc = sdi->priv;
 755         if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
 756                 sr_dbg("Trigger transfer canceled.");
 757                 /* Terminate session. */
 758                 std_session_send_df_end(sdi, LOG_PREFIX);
 759                 usb_source_remove(sdi->session, devc->ctx);
 760                 devc->num_transfers = 0;
 761                 g_free(devc->transfers);
 762                 if (devc->stl) {
 763                         soft_trigger_logic_free(devc->stl);
 764                         devc->stl = NULL;
 765                 }
 766         } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
 767                         && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
 768                 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
 769                 sr_dbg("tpos real_pos %.8x ram_saddr %.8x", tpos->real_pos, tpos->ram_saddr);
 770                 g_free(tpos);
 771                 start_transfers(sdi);
 772         }
 773
 774         libusb_free_transfer(transfer);
 775 }
 776
 777 static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
 778 {
 779         struct sr_usb_dev_inst *usb;
 780         struct libusb_transfer *transfer;
 781         struct dslogic_trigger_pos *tpos;
 782         struct dev_context *devc;
 783         int ret;
 784
 785         usb = sdi->conn;
 786         devc = sdi->priv;
 787
 788         if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
 789                 return ret;
 790
 791         if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
 792                 return ret;
 793
 794         if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
 795                 return ret;
 796
 797         sr_dbg("Getting trigger.");
 798         tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
 799         transfer = libusb_alloc_transfer(0);
 800         libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
 801                         (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
 802                         dslogic_trigger_receive, (void *)sdi, 0);
 803         if ((ret = libusb_submit_transfer(transfer)) < 0) {
 804                 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
 805                 libusb_free_transfer(transfer);
 806                 g_free(tpos);
 807                 return SR_ERR;
 808         }
 809
 810         devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
 811         if (!devc->transfers) {
 812                 sr_err("USB trigger_pos transfer malloc failed.");
 813                 return SR_ERR_MALLOC;
 814         }
 815         devc->num_transfers = 1;
 816         devc->submitted_transfers++;
 817         devc->transfers[0] = transfer;
 818
 819         return ret;
 820 }
 821
 822 static int configure_channels(const struct sr_dev_inst *sdi)
 823 {
 824         struct dev_context *devc;
 825         const GSList *l;
 826         int p;
 827         struct sr_channel *ch;
 828
 829         devc = sdi->priv;
 830
 831         g_slist_free(devc->enabled_analog_channels);
 832         devc->enabled_analog_channels = NULL;
 833         memset(devc->ch_enabled, 0, sizeof(devc->ch_enabled));
 834
 835         for (l = sdi->channels, p = 0; l; l = l->next, p++) {
 836                 ch = l->data;
 837                 if ((p <= NUM_CHANNELS) && (ch->type == SR_CHANNEL_ANALOG)) {
 838                         devc->ch_enabled[p] = ch->enabled;
 839                         devc->enabled_analog_channels =
 840                             g_slist_append(devc->enabled_analog_channels, ch);
 841                 }
 842         }
 843
 844         return SR_OK;
 845 }
 846
 847 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 848 {
 849         struct sr_dev_driver *di;
 850         struct drv_context *drvc;
 851         struct dev_context *devc;
 852         int timeout, ret;
 853         size_t size;
 854
 855         if (sdi->status != SR_ST_ACTIVE)
 856                 return SR_ERR_DEV_CLOSED;
 857
 858         di = sdi->driver;
 859         drvc = di->context;
 860         devc = sdi->priv;
 861
 862         devc->ctx = drvc->sr_ctx;
 863         devc->cb_data = cb_data;
 864         devc->sent_samples = 0;
 865         devc->empty_transfer_count = 0;
 866         devc->acq_aborted = FALSE;
 867
 868         if (configure_channels(sdi) != SR_OK) {
 869                 sr_err("Failed to configure channels.");
 870                 return SR_ERR;
 871         }
 872
 873         timeout = fx2lafw_get_timeout(devc);
 874         usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
 875
 876         if (devc->dslogic) {
 877                 dslogic_trigger_request(sdi);
 878         } else {
 879                 size = fx2lafw_get_buffer_size(devc);
 880                 /* Prepare for analog sampling. */
 881                 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) {
 882                         /* We need a buffer half the size of a transfer. */
 883                         devc->logic_buffer = g_try_malloc(size / 2);
 884                         devc->analog_buffer = g_try_malloc(
 885                                 sizeof(float) * size / 2);
 886                 }
 887                 start_transfers(sdi);
 888                 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
 889                         fx2lafw_abort_acquisition(devc);
 890                         return ret;
 891                 }
 892         }
 893
 894         return SR_OK;
 895 }
 896
 897 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 898 {
 899         struct dev_context *devc;
 900
 901         (void)cb_data;
 902
 903         devc = sdi->priv;
 904
 905         if (devc->dslogic)
 906                 dslogic_stop_acquisition(sdi);
 907
 908         fx2lafw_abort_acquisition(sdi->priv);
 909
 910         return SR_OK;
 911 }
 912
 913 SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
 914         .name = "fx2lafw",
 915         .longname = "fx2lafw (generic driver for FX2 based LAs)",
 916         .api_version = 1,
 917         .init = init,
 918         .cleanup = cleanup,
 919         .scan = scan,
 920         .dev_list = dev_list,
 921         .dev_clear = dev_clear,
 922         .config_get = config_get,
 923         .config_set = config_set,
 924         .config_list = config_list,
 925         .dev_open = dev_open,
 926         .dev_close = dev_close,
 927         .dev_acquisition_start = dev_acquisition_start,
 928         .dev_acquisition_stop = dev_acquisition_stop,
 929         .context = NULL,
 930 };