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 #include <math.h>
  25
  26 static const struct fx2lafw_profile supported_fx2[] = {
  27         /*
  28          * CWAV USBee AX
  29          * EE Electronics ESLA201A
  30          * ARMFLY AX-Pro
  31          */
  32         { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
  33                 "fx2lafw-cwav-usbeeax.fw",
  34                 DEV_CAPS_AX_ANALOG, NULL, NULL},
  35         /*
  36          * CWAV USBee DX
  37          * XZL-Studio DX
  38          */
  39         { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
  40                 "fx2lafw-cwav-usbeedx.fw",
  41                 DEV_CAPS_16BIT, NULL, NULL },
  42
  43         /*
  44          * CWAV USBee SX
  45          */
  46         { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
  47                 "fx2lafw-cwav-usbeesx.fw",
  48                 0, NULL, NULL},
  49
  50         /* DreamSourceLab DSLogic (before FW upload) */
  51         { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
  52                 "dreamsourcelab-dslogic-fx2.fw",
  53                 DEV_CAPS_16BIT, NULL, NULL},
  54         /* DreamSourceLab DSLogic (after FW upload) */
  55         { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
  56                 "dreamsourcelab-dslogic-fx2.fw",
  57                 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
  58
  59         /* DreamSourceLab DSCope (before FW upload) */
  60         { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
  61                 "dreamsourcelab-dscope-fx2.fw",
  62                 DEV_CAPS_16BIT, NULL, NULL},
  63         /* DreamSourceLab DSCope (after FW upload) */
  64         { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
  65                 "dreamsourcelab-dscope-fx2.fw",
  66                 DEV_CAPS_16BIT, "DreamSourceLab", "DSCope"},
  67
  68         /* DreamSourceLab DSLogic Pro (before FW upload) */
  69         { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
  70                 "dreamsourcelab-dslogic-pro-fx2.fw",
  71                 DEV_CAPS_16BIT, NULL, NULL},
  72         /* DreamSourceLab DSLogic Pro (after FW upload) */
  73         { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
  74                 "dreamsourcelab-dslogic-pro-fx2.fw",
  75                 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
  76
  77         /*
  78          * Saleae Logic
  79          * EE Electronics ESLA100
  80          * Robomotic MiniLogic
  81          * Robomotic BugLogic 3
  82          */
  83         { 0x0925, 0x3881, "Saleae", "Logic", NULL,
  84                 "fx2lafw-saleae-logic.fw",
  85                 0, NULL, NULL},
  86
  87         /*
  88          * Default Cypress FX2 without EEPROM, e.g.:
  89          * Lcsoft Mini Board
  90          * Braintechnology USB Interface V2.x
  91          */
  92         { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
  93                 "fx2lafw-cypress-fx2.fw",
  94                 DEV_CAPS_16BIT, NULL, NULL },
  95
  96         /*
  97          * Braintechnology USB-LPS
  98          */
  99         { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
 100                 "fx2lafw-braintechnology-usb-lps.fw",
 101                 DEV_CAPS_16BIT, NULL, NULL },
 102
 103         /*
 104          * sigrok FX2 based 8-channel logic analyzer
 105          */
 106         { 0x1d50, 0x608c, "sigrok", "FX2 LA (8ch)", NULL,
 107                 "fx2lafw-sigrok-fx2-8ch.fw",
 108                 0, NULL, NULL},
 109
 110         /*
 111          * sigrok FX2 based 16-channel logic analyzer
 112          */
 113         { 0x1d50, 0x608d, "sigrok", "FX2 LA (16ch)", NULL,
 114                 "fx2lafw-sigrok-fx2-16ch.fw",
 115                 DEV_CAPS_16BIT, NULL, NULL },
 116
 117         ALL_ZERO
 118 };
 119
 120 static const uint32_t drvopts[] = {
 121         SR_CONF_LOGIC_ANALYZER,
 122 };
 123
 124 static const uint32_t scanopts[] = {
 125         SR_CONF_CONN,
 126 };
 127
 128 static const uint32_t devopts[] = {
 129         SR_CONF_CONTINUOUS,
 130         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
 131         SR_CONF_CONN | SR_CONF_GET,
 132         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 133         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
 134         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
 135 };
 136
 137 static const uint32_t dslogic_devopts[] = {
 138         SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET,
 139         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
 140         SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 141         SR_CONF_CONN | SR_CONF_GET,
 142         SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 143         SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
 144         SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
 145         SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
 146 };
 147
 148 static const int32_t soft_trigger_matches[] = {
 149         SR_TRIGGER_ZERO,
 150         SR_TRIGGER_ONE,
 151         SR_TRIGGER_RISING,
 152         SR_TRIGGER_FALLING,
 153         SR_TRIGGER_EDGE,
 154 };
 155
 156 static const struct {
 157         int range;
 158         gdouble low;
 159         gdouble high;
 160 } volt_thresholds[] = {
 161         { DS_VOLTAGE_RANGE_18_33_V, 0.7,     1.4 },
 162         { DS_VOLTAGE_RANGE_5_V,     1.4,     3.6 },
 163 };
 164
 165 static const uint64_t samplerates[] = {
 166         SR_KHZ(20),
 167         SR_KHZ(25),
 168         SR_KHZ(50),
 169         SR_KHZ(100),
 170         SR_KHZ(200),
 171         SR_KHZ(250),
 172         SR_KHZ(500),
 173         SR_MHZ(1),
 174         SR_MHZ(2),
 175         SR_MHZ(3),
 176         SR_MHZ(4),
 177         SR_MHZ(6),
 178         SR_MHZ(8),
 179         SR_MHZ(12),
 180         SR_MHZ(16),
 181         SR_MHZ(24),
 182 };
 183
 184 static const uint64_t dslogic_samplerates[] = {
 185         SR_KHZ(10),
 186         SR_KHZ(20),
 187         SR_KHZ(50),
 188         SR_KHZ(100),
 189         SR_KHZ(200),
 190         SR_KHZ(500),
 191         SR_MHZ(1),
 192         SR_MHZ(2),
 193         SR_MHZ(5),
 194         SR_MHZ(10),
 195         SR_MHZ(20),
 196         SR_MHZ(25),
 197         SR_MHZ(50),
 198         SR_MHZ(100),
 199         SR_MHZ(200),
 200         SR_MHZ(400),
 201 };
 202
 203 SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 204
 205 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 206 {
 207         struct drv_context *drvc;
 208         struct dev_context *devc;
 209         struct sr_dev_inst *sdi;
 210         struct sr_usb_dev_inst *usb;
 211         struct sr_channel *ch;
 212         struct sr_channel_group *cg;
 213         struct sr_config *src;
 214         const struct fx2lafw_profile *prof;
 215         GSList *l, *devices, *conn_devices;
 216         gboolean has_firmware;
 217         struct libusb_device_descriptor des;
 218         libusb_device **devlist;
 219         struct libusb_device_handle *hdl;
 220         int ret, i, j;
 221         int num_logic_channels = 0, num_analog_channels = 0;
 222         const char *conn;
 223         char manufacturer[64], product[64], serial_num[64], connection_id[64];
 224         char channel_name[16];
 225
 226         drvc = di->context;
 227
 228         conn = NULL;
 229         for (l = options; l; l = l->next) {
 230                 src = l->data;
 231                 switch (src->key) {
 232                 case SR_CONF_CONN:
 233                         conn = g_variant_get_string(src->data, NULL);
 234                         break;
 235                 }
 236         }
 237         if (conn)
 238                 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
 239         else
 240                 conn_devices = NULL;
 241
 242         /* Find all fx2lafw compatible devices and upload firmware to them. */
 243         devices = NULL;
 244         libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
 245         for (i = 0; devlist[i]; i++) {
 246                 if (conn) {
 247                         usb = NULL;
 248                         for (l = conn_devices; l; l = l->next) {
 249                                 usb = l->data;
 250                                 if (usb->bus == libusb_get_bus_number(devlist[i])
 251                                         && usb->address == libusb_get_device_address(devlist[i]))
 252                                         break;
 253                         }
 254                         if (!l)
 255                                 /* This device matched none of the ones that
 256                                  * matched the conn specification. */
 257                                 continue;
 258                 }
 259
 260                 libusb_get_device_descriptor( devlist[i], &des);
 261
 262                 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
 263                         continue;
 264
 265                 if (des.iManufacturer == 0) {
 266                         manufacturer[0] = '\0';
 267                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 268                                 des.iManufacturer, (unsigned char *) manufacturer,
 269                                 sizeof(manufacturer))) < 0) {
 270                         sr_warn("Failed to get manufacturer string descriptor: %s.",
 271                                 libusb_error_name(ret));
 272                         continue;
 273                 }
 274
 275                 if (des.iProduct == 0) {
 276                         product[0] = '\0';
 277                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 278                                 des.iProduct, (unsigned char *) product,
 279                                 sizeof(product))) < 0) {
 280                         sr_warn("Failed to get product string descriptor: %s.",
 281                                 libusb_error_name(ret));
 282                         continue;
 283                 }
 284
 285                 if (des.iSerialNumber == 0) {
 286                         serial_num[0] = '\0';
 287                 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
 288                                 des.iSerialNumber, (unsigned char *) serial_num,
 289                                 sizeof(serial_num))) < 0) {
 290                         sr_warn("Failed to get serial number string descriptor: %s.",
 291                                 libusb_error_name(ret));
 292                         continue;
 293                 }
 294
 295                 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
 296
 297                 libusb_close(hdl);
 298
 299                 prof = NULL;
 300                 for (j = 0; supported_fx2[j].vid; j++) {
 301                         if (des.idVendor == supported_fx2[j].vid &&
 302                                         des.idProduct == supported_fx2[j].pid &&
 303                                         (!supported_fx2[j].usb_manufacturer ||
 304                                          !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
 305                                         (!supported_fx2[j].usb_manufacturer ||
 306                                          !strcmp(product, supported_fx2[j].usb_product))) {
 307                                 prof = &supported_fx2[j];
 308                                 break;
 309                         }
 310                 }
 311
 312                 /* Skip if the device was not found. */
 313                 if (!prof)
 314                         continue;
 315
 316                 sdi = g_malloc0(sizeof(struct sr_dev_inst));
 317                 sdi->status = SR_ST_INITIALIZING;
 318                 sdi->vendor = g_strdup(prof->vendor);
 319                 sdi->model = g_strdup(prof->model);
 320                 sdi->version = g_strdup(prof->model_version);
 321                 sdi->driver = di;
 322                 sdi->serial_num = g_strdup(serial_num);
 323                 sdi->connection_id = g_strdup(connection_id);
 324
 325                 /* Fill in channellist according to this device's profile. */
 326                 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
 327                 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
 328
 329                 /* Logic channels, all in one channel group. */
 330                 cg = g_malloc0(sizeof(struct sr_channel_group));
 331                 cg->name = g_strdup("Logic");
 332                 for (j = 0; j < num_logic_channels; j++) {
 333                         sprintf(channel_name, "D%d", j);
 334                         ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
 335                                                 TRUE, channel_name);
 336                         cg->channels = g_slist_append(cg->channels, ch);
 337                 }
 338                 sdi->channel_groups = g_slist_append(NULL, cg);
 339
 340                 for (j = 0; j < num_analog_channels; j++) {
 341                         snprintf(channel_name, 16, "A%d", j);
 342                         ch = sr_channel_new(sdi, j + num_logic_channels,
 343                                         SR_CHANNEL_ANALOG, TRUE, channel_name);
 344
 345                         /* Every analog channel gets its own channel group. */
 346                         cg = g_malloc0(sizeof(struct sr_channel_group));
 347                         cg->name = g_strdup(channel_name);
 348                         cg->channels = g_slist_append(NULL, ch);
 349                         sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
 350                 }
 351
 352                 devc = fx2lafw_dev_new();
 353                 devc->profile = prof;
 354                 if ((prof->dev_caps & DEV_CAPS_16BIT) || (prof->dev_caps & DEV_CAPS_AX_ANALOG))
 355                         devc->sample_wide = TRUE;
 356                 sdi->priv = devc;
 357                 drvc->instances = g_slist_append(drvc->instances, sdi);
 358                 devices = g_slist_append(devices, sdi);
 359
 360                 if (!strcmp(prof->model, "DSLogic")
 361                                 || !strcmp(prof->model, "DSLogic Pro")
 362                                 || !strcmp(prof->model, "DSCope")) {
 363                         devc->dslogic = TRUE;
 364                         devc->samplerates = dslogic_samplerates;
 365                         devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
 366                         has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
 367                                         || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
 368                 } else {
 369                         devc->dslogic = FALSE;
 370                         devc->samplerates = samplerates;
 371                         devc->num_samplerates = ARRAY_SIZE(samplerates);
 372                         has_firmware = match_manuf_prod(devlist[i],
 373                                         "sigrok", "fx2lafw");
 374                 }
 375
 376                 if (has_firmware) {
 377                         /* Already has the firmware, so fix the new address. */
 378                         sr_dbg("Found an fx2lafw device.");
 379                         sdi->status = SR_ST_INACTIVE;
 380                         sdi->inst_type = SR_INST_USB;
 381                         sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 382                                         libusb_get_device_address(devlist[i]), NULL);
 383                 } else {
 384                         if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
 385                                         USB_CONFIGURATION, prof->firmware) == SR_OK)
 386                                 /* Store when this device's FW was updated. */
 387                                 devc->fw_updated = g_get_monotonic_time();
 388                         else
 389                                 sr_err("Firmware upload failed for "
 390                                        "device %d.%d (logical).",
 391                                        libusb_get_bus_number(devlist[i]),
 392                                        libusb_get_device_address(devlist[i]));
 393                         sdi->inst_type = SR_INST_USB;
 394                         sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 395                                         0xff, NULL);
 396                 }
 397         }
 398         libusb_free_device_list(devlist, 1);
 399         g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
 400
 401         return devices;
 402 }
 403
 404 static void clear_dev_context(void *priv)
 405 {
 406         struct dev_context *devc;
 407
 408         devc = priv;
 409         g_slist_free(devc->enabled_analog_channels);
 410         g_free(devc);
 411 }
 412
 413 static int dev_clear(const struct sr_dev_driver *di)
 414 {
 415         return std_dev_clear(di, clear_dev_context);
 416 }
 417
 418 static int dev_open(struct sr_dev_inst *sdi)
 419 {
 420         struct sr_dev_driver *di = sdi->driver;
 421         struct sr_usb_dev_inst *usb;
 422         struct dev_context *devc;
 423         const char *fpga_firmware = NULL;
 424         int ret;
 425         int64_t timediff_us, timediff_ms;
 426
 427         devc = sdi->priv;
 428         usb = sdi->conn;
 429
 430         /*
 431          * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
 432          * milliseconds for the FX2 to renumerate.
 433          */
 434         ret = SR_ERR;
 435         if (devc->fw_updated > 0) {
 436                 sr_info("Waiting for device to reset.");
 437                 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
 438                 g_usleep(300 * 1000);
 439                 timediff_ms = 0;
 440                 while (timediff_ms < MAX_RENUM_DELAY_MS) {
 441                         if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
 442                                 break;
 443                         g_usleep(100 * 1000);
 444
 445                         timediff_us = g_get_monotonic_time() - devc->fw_updated;
 446                         timediff_ms = timediff_us / 1000;
 447                         sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
 448                 }
 449                 if (ret != SR_OK) {
 450                         sr_err("Device failed to renumerate.");
 451                         return SR_ERR;
 452                 }
 453                 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
 454         } else {
 455                 sr_info("Firmware upload was not needed.");
 456                 ret = fx2lafw_dev_open(sdi, di);
 457         }
 458
 459         if (ret != SR_OK) {
 460                 sr_err("Unable to open device.");
 461                 return SR_ERR;
 462         }
 463
 464         ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
 465         if (ret != 0) {
 466                 switch (ret) {
 467                 case LIBUSB_ERROR_BUSY:
 468                         sr_err("Unable to claim USB interface. Another "
 469                                "program or driver has already claimed it.");
 470                         break;
 471                 case LIBUSB_ERROR_NO_DEVICE:
 472                         sr_err("Device has been disconnected.");
 473                         break;
 474                 default:
 475                         sr_err("Unable to claim interface: %s.",
 476                                libusb_error_name(ret));
 477                         break;
 478                 }
 479
 480                 return SR_ERR;
 481         }
 482
 483         if (devc->dslogic) {
 484                 if (!strcmp(devc->profile->model, "DSLogic")) {
 485                         if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_18_33_V)
 486                                 fpga_firmware = DSLOGIC_FPGA_FIRMWARE_3V3;
 487                         else
 488                                 fpga_firmware = DSLOGIC_FPGA_FIRMWARE_5V;
 489                 } else if (!strcmp(devc->profile->model, "DSLogic Pro")){
 490                         fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
 491                 } else if (!strcmp(devc->profile->model, "DSCope")) {
 492                         fpga_firmware = DSCOPE_FPGA_FIRMWARE;
 493                 }
 494
 495                 if ((ret = dslogic_fpga_firmware_upload(sdi, fpga_firmware)) != SR_OK)
 496                         return ret;
 497         }
 498         if (devc->cur_samplerate == 0) {
 499                 /* Samplerate hasn't been set; default to the slowest one. */
 500                 devc->cur_samplerate = devc->samplerates[0];
 501         }
 502
 503         return SR_OK;
 504 }
 505
 506 static int dev_close(struct sr_dev_inst *sdi)
 507 {
 508         struct sr_usb_dev_inst *usb;
 509
 510         usb = sdi->conn;
 511         if (!usb->devhdl)
 512                 return SR_ERR;
 513
 514         sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
 515                 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
 516         libusb_release_interface(usb->devhdl, USB_INTERFACE);
 517         libusb_close(usb->devhdl);
 518         usb->devhdl = NULL;
 519         sdi->status = SR_ST_INACTIVE;
 520
 521         return SR_OK;
 522 }
 523
 524 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 525                 const struct sr_channel_group *cg)
 526 {
 527         struct dev_context *devc;
 528         struct sr_usb_dev_inst *usb;
 529         GVariant *range[2];
 530         unsigned int i;
 531         char str[128];
 532
 533         (void)cg;
 534
 535         if (!sdi)
 536                 return SR_ERR_ARG;
 537
 538         devc = sdi->priv;
 539
 540         switch (key) {
 541         case SR_CONF_CONN:
 542                 if (!sdi->conn)
 543                         return SR_ERR_ARG;
 544                 usb = sdi->conn;
 545                 if (usb->address == 255)
 546                         /* Device still needs to re-enumerate after firmware
 547                          * upload, so we don't know its (future) address. */
 548                         return SR_ERR;
 549                 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
 550                 *data = g_variant_new_string(str);
 551                 break;
 552         case SR_CONF_VOLTAGE_THRESHOLD:
 553                 for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
 554                         if (volt_thresholds[i].range != devc->dslogic_voltage_threshold)
 555                                 continue;
 556                         range[0] = g_variant_new_double(volt_thresholds[i].low);
 557                         range[1] = g_variant_new_double(volt_thresholds[i].high);
 558                         *data = g_variant_new_tuple(range, 2);
 559                         break;
 560                 }
 561                 break;
 562         case SR_CONF_LIMIT_SAMPLES:
 563                 *data = g_variant_new_uint64(devc->limit_samples);
 564                 break;
 565         case SR_CONF_SAMPLERATE:
 566                 *data = g_variant_new_uint64(devc->cur_samplerate);
 567                 break;
 568         case SR_CONF_CAPTURE_RATIO:
 569                 *data = g_variant_new_uint64(devc->capture_ratio);
 570                 break;
 571         case SR_CONF_EXTERNAL_CLOCK:
 572                 *data = g_variant_new_boolean(devc->dslogic_external_clock);
 573                 break;
 574         case SR_CONF_CONTINUOUS:
 575                 *data = g_variant_new_boolean(devc->dslogic_continuous_mode);
 576                 break;
 577         default:
 578                 return SR_ERR_NA;
 579         }
 580
 581         return SR_OK;
 582 }
 583
 584 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 585                 const struct sr_channel_group *cg)
 586 {
 587         struct dev_context *devc;
 588         uint64_t arg;
 589         int i, ret;
 590         gdouble low, high;
 591
 592         (void)cg;
 593
 594         if (!sdi)
 595                 return SR_ERR_ARG;
 596
 597         if (sdi->status != SR_ST_ACTIVE)
 598                 return SR_ERR;
 599
 600         devc = sdi->priv;
 601
 602         ret = SR_OK;
 603
 604         switch (key) {
 605         case SR_CONF_SAMPLERATE:
 606                 arg = g_variant_get_uint64(data);
 607                 for (i = 0; i < devc->num_samplerates; i++) {
 608                         if (devc->samplerates[i] == arg) {
 609                                 devc->cur_samplerate = arg;
 610                                 break;
 611                         }
 612                 }
 613                 if (i == devc->num_samplerates)
 614                         ret = SR_ERR_ARG;
 615                 break;
 616         case SR_CONF_LIMIT_SAMPLES:
 617                 devc->limit_samples = g_variant_get_uint64(data);
 618                 break;
 619         case SR_CONF_CAPTURE_RATIO:
 620                 devc->capture_ratio = g_variant_get_uint64(data);
 621                 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
 622                 break;
 623         case SR_CONF_VOLTAGE_THRESHOLD:
 624                 g_variant_get(data, "(dd)", &low, &high);
 625                 ret = SR_ERR_ARG;
 626                 for (i = 0; (unsigned int)i < ARRAY_SIZE(volt_thresholds); i++) {
 627                         if (fabs(volt_thresholds[i].low - low) < 0.1 &&
 628                             fabs(volt_thresholds[i].high - high) < 0.1) {
 629                                 devc->dslogic_voltage_threshold = volt_thresholds[i].range;
 630                                 break;
 631                         }
 632                 }
 633                 if (!strcmp(devc->profile->model, "DSLogic")) {
 634                         if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_5_V)
 635                                 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_5V);
 636                         else
 637                                 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_3V3);
 638                 }else if (!strcmp(devc->profile->model, "DSLogic Pro")){
 639                         ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_PRO_FPGA_FIRMWARE);
 640                 }
 641                 break;
 642         case SR_CONF_EXTERNAL_CLOCK:
 643                 devc->dslogic_external_clock = g_variant_get_boolean(data);
 644                 break;
 645         case SR_CONF_CONTINUOUS:
 646                 devc->dslogic_continuous_mode = g_variant_get_boolean(data);
 647                 break;
 648         default:
 649                 ret = SR_ERR_NA;
 650         }
 651
 652         return ret;
 653 }
 654
 655 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 656                 const struct sr_channel_group *cg)
 657 {
 658         struct dev_context *devc;
 659         GVariant *gvar, *range[2];
 660         GVariantBuilder gvb;
 661         unsigned int i;
 662
 663         (void)cg;
 664
 665         switch (key) {
 666         case SR_CONF_SCAN_OPTIONS:
 667                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 668                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 669                 break;
 670         case SR_CONF_DEVICE_OPTIONS:
 671                 if (!sdi)
 672                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 673                                                           drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 674                 else{
 675                         devc = sdi->priv;
 676                         if (!devc->dslogic)
 677                                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 678                                                                   devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 679                         else
 680                                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 681                                                                   dslogic_devopts, ARRAY_SIZE(dslogic_devopts), sizeof(uint32_t));
 682                 }
 683                 break;
 684         case SR_CONF_VOLTAGE_THRESHOLD:
 685                 if (!sdi->priv) return SR_ERR_ARG;
 686                 devc = sdi->priv;
 687                 if (!devc->dslogic) return SR_ERR_NA;
 688                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 689                 for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
 690                         range[0] = g_variant_new_double(volt_thresholds[i].low);
 691                         range[1] = g_variant_new_double(volt_thresholds[i].high);
 692                         gvar = g_variant_new_tuple(range, 2);
 693                         g_variant_builder_add_value(&gvb, gvar);
 694                 }
 695                 *data = g_variant_builder_end(&gvb);
 696                 break;
 697         case SR_CONF_SAMPLERATE:
 698                 if (!sdi->priv)
 699                         return SR_ERR_ARG;
 700                 devc = sdi->priv;
 701                 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
 702                 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
 703                                 devc->num_samplerates, sizeof(uint64_t));
 704                 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
 705                 *data = g_variant_builder_end(&gvb);
 706                 break;
 707         case SR_CONF_TRIGGER_MATCH:
 708                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 709                                 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
 710                                 sizeof(int32_t));
 711                 break;
 712         default:
 713                 return SR_ERR_NA;
 714         }
 715
 716         return SR_OK;
 717 }
 718
 719 static int receive_data(int fd, int revents, void *cb_data)
 720 {
 721         struct timeval tv;
 722         struct drv_context *drvc;
 723
 724         (void)fd;
 725         (void)revents;
 726
 727         drvc = (struct drv_context *)cb_data;
 728
 729         tv.tv_sec = tv.tv_usec = 0;
 730         libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
 731
 732         return TRUE;
 733 }
 734
 735 static int start_transfers(const struct sr_dev_inst *sdi)
 736 {
 737         struct dev_context *devc;
 738         struct sr_usb_dev_inst *usb;
 739         struct sr_trigger *trigger;
 740         struct libusb_transfer *transfer;
 741         unsigned int i, num_transfers;
 742         int endpoint, timeout, ret;
 743         unsigned char *buf;
 744         size_t size;
 745
 746         devc = sdi->priv;
 747         usb = sdi->conn;
 748
 749         devc->sent_samples = 0;
 750         devc->acq_aborted = FALSE;
 751         devc->empty_transfer_count = 0;
 752
 753         if ((trigger = sr_session_trigger_get(sdi->session)) && !devc->dslogic) {
 754                 int pre_trigger_samples = 0;
 755                 if (devc->limit_samples > 0)
 756                         pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
 757                 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
 758                 if (!devc->stl)
 759                         return SR_ERR_MALLOC;
 760                 devc->trigger_fired = FALSE;
 761         } else
 762                 devc->trigger_fired = TRUE;
 763
 764         num_transfers = fx2lafw_get_number_of_transfers(devc);
 765         size = fx2lafw_get_buffer_size(devc);
 766         devc->submitted_transfers = 0;
 767
 768         devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
 769         if (!devc->transfers) {
 770                 sr_err("USB transfers malloc failed.");
 771                 return SR_ERR_MALLOC;
 772         }
 773
 774         timeout = fx2lafw_get_timeout(devc);
 775         endpoint = devc->dslogic ? 6 : 2;
 776         devc->num_transfers = num_transfers;
 777         for (i = 0; i < num_transfers; i++) {
 778                 if (!(buf = g_try_malloc(size))) {
 779                         sr_err("USB transfer buffer malloc failed.");
 780                         return SR_ERR_MALLOC;
 781                 }
 782                 transfer = libusb_alloc_transfer(0);
 783                 libusb_fill_bulk_transfer(transfer, usb->devhdl,
 784                                 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
 785                                 fx2lafw_receive_transfer, (void *)sdi, timeout);
 786                 if ((ret = libusb_submit_transfer(transfer)) != 0) {
 787                         sr_err("Failed to submit transfer: %s.",
 788                                libusb_error_name(ret));
 789                         libusb_free_transfer(transfer);
 790                         g_free(buf);
 791                         fx2lafw_abort_acquisition(devc);
 792                         return SR_ERR;
 793                 }
 794                 devc->transfers[i] = transfer;
 795                 devc->submitted_transfers++;
 796         }
 797
 798         if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG)
 799                 devc->send_data_proc = mso_send_data_proc;
 800         else
 801                 devc->send_data_proc = la_send_data_proc;
 802
 803         std_session_send_df_header(sdi, LOG_PREFIX);
 804
 805         return SR_OK;
 806 }
 807
 808 static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
 809 {
 810         const struct sr_dev_inst *sdi;
 811         struct dslogic_trigger_pos *tpos;
 812         struct dev_context *devc;
 813
 814         sdi = transfer->user_data;
 815         devc = sdi->priv;
 816         if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
 817                 sr_dbg("Trigger transfer canceled.");
 818                 /* Terminate session. */
 819                 std_session_send_df_end(sdi, LOG_PREFIX);
 820                 usb_source_remove(sdi->session, devc->ctx);
 821                 devc->num_transfers = 0;
 822                 g_free(devc->transfers);
 823                 if (devc->stl) {
 824                         soft_trigger_logic_free(devc->stl);
 825                         devc->stl = NULL;
 826                 }
 827         } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
 828                         && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
 829                 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
 830                 sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos, tpos->ram_saddr, tpos->remain_cnt);
 831                 devc->trigger_pos  = tpos->real_pos;
 832                 g_free(tpos);
 833                 start_transfers(sdi);
 834         }
 835         libusb_free_transfer(transfer);
 836 }
 837
 838 static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
 839 {
 840         struct sr_usb_dev_inst *usb;
 841         struct libusb_transfer *transfer;
 842         struct dslogic_trigger_pos *tpos;
 843         struct dev_context *devc;
 844         int ret;
 845
 846         usb = sdi->conn;
 847         devc = sdi->priv;
 848
 849         if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
 850                 return ret;
 851
 852         if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
 853                 return ret;
 854
 855         /* if this is a dslogic pro, set the voltage threshold */
 856         if (!strcmp(devc->profile->model, "DSLogic Pro")){
 857                 if(devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_18_33_V){
 858                         dslogic_set_vth(sdi, 1.4);
 859                 }else{
 860                         dslogic_set_vth(sdi, 3.3);
 861                 }
 862         }
 863
 864         if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
 865                 return ret;
 866
 867         sr_dbg("Getting trigger.");
 868         tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
 869         transfer = libusb_alloc_transfer(0);
 870         libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
 871                         (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
 872                         dslogic_trigger_receive, (void *)sdi, 0);
 873         if ((ret = libusb_submit_transfer(transfer)) < 0) {
 874                 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
 875                 libusb_free_transfer(transfer);
 876                 g_free(tpos);
 877                 return SR_ERR;
 878         }
 879
 880         devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
 881         if (!devc->transfers) {
 882                 sr_err("USB trigger_pos transfer malloc failed.");
 883                 return SR_ERR_MALLOC;
 884         }
 885         devc->num_transfers = 1;
 886         devc->submitted_transfers++;
 887         devc->transfers[0] = transfer;
 888
 889         return ret;
 890 }
 891
 892 static int configure_channels(const struct sr_dev_inst *sdi)
 893 {
 894         struct dev_context *devc;
 895         const GSList *l;
 896         int p;
 897         struct sr_channel *ch;
 898
 899         devc = sdi->priv;
 900
 901         g_slist_free(devc->enabled_analog_channels);
 902         devc->enabled_analog_channels = NULL;
 903         memset(devc->ch_enabled, 0, sizeof(devc->ch_enabled));
 904
 905         for (l = sdi->channels, p = 0; l; l = l->next, p++) {
 906                 ch = l->data;
 907                 if ((p <= NUM_CHANNELS) && (ch->type == SR_CHANNEL_ANALOG)) {
 908                         devc->ch_enabled[p] = ch->enabled;
 909                         devc->enabled_analog_channels =
 910                             g_slist_append(devc->enabled_analog_channels, ch);
 911                 }
 912         }
 913
 914         return SR_OK;
 915 }
 916
 917 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 918 {
 919         struct sr_dev_driver *di;
 920         struct drv_context *drvc;
 921         struct dev_context *devc;
 922         int timeout, ret;
 923         size_t size;
 924
 925         if (sdi->status != SR_ST_ACTIVE)
 926                 return SR_ERR_DEV_CLOSED;
 927
 928         di = sdi->driver;
 929         drvc = di->context;
 930         devc = sdi->priv;
 931
 932         devc->ctx = drvc->sr_ctx;
 933         devc->sent_samples = 0;
 934         devc->empty_transfer_count = 0;
 935         devc->acq_aborted = FALSE;
 936
 937         if (configure_channels(sdi) != SR_OK) {
 938                 sr_err("Failed to configure channels.");
 939                 return SR_ERR;
 940         }
 941
 942         timeout = fx2lafw_get_timeout(devc);
 943         usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
 944
 945         if (devc->dslogic) {
 946                 dslogic_trigger_request(sdi);
 947         } else {
 948                 size = fx2lafw_get_buffer_size(devc);
 949                 /* Prepare for analog sampling. */
 950                 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) {
 951                         /* We need a buffer half the size of a transfer. */
 952                         devc->logic_buffer = g_try_malloc(size / 2);
 953                         devc->analog_buffer = g_try_malloc(
 954                                 sizeof(float) * size / 2);
 955                 }
 956                 start_transfers(sdi);
 957                 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
 958                         fx2lafw_abort_acquisition(devc);
 959                         return ret;
 960                 }
 961         }
 962
 963         return SR_OK;
 964 }
 965
 966 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 967 {
 968         struct dev_context *devc;
 969
 970         devc = sdi->priv;
 971
 972         if (devc->dslogic)
 973                 dslogic_stop_acquisition(sdi);
 974
 975         fx2lafw_abort_acquisition(sdi->priv);
 976
 977         return SR_OK;
 978 }
 979
 980 SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
 981         .name = "fx2lafw",
 982         .longname = "fx2lafw (generic driver for FX2 based LAs)",
 983         .api_version = 1,
 984         .init = std_init,
 985         .cleanup = std_cleanup,
 986         .scan = scan,
 987         .dev_list = std_dev_list,
 988         .dev_clear = dev_clear,
 989         .config_get = config_get,
 990         .config_set = config_set,
 991         .config_list = config_list,
 992         .dev_open = dev_open,
 993         .dev_close = dev_close,
 994         .dev_acquisition_start = dev_acquisition_start,
 995         .dev_acquisition_stop = dev_acquisition_stop,
 996         .context = NULL,
 997 };