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