2 * This file is part of the sigrok project.
4 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
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/>.
26 #include "libsigrok.h"
27 #include "libsigrok-internal.h"
31 static const struct fx2lafw_profile supported_fx2[] = {
34 * EE Electronics ESLA201A
37 { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
38 FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw",
44 { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
45 FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw",
51 { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
52 FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw",
57 * EE Electronics ESLA100
59 * Robomotic BugLogic 3
61 { 0x0925, 0x3881, "Saleae", "Logic", NULL,
62 FIRMWARE_DIR "/fx2lafw-saleae-logic.fw",
66 * Default Cypress FX2 without EEPROM, e.g.:
68 * Braintechnology USB Interface V2.x
70 { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
71 FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw",
75 * Braintechnology USB-LPS
77 { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
78 FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw",
81 { 0, 0, 0, 0, 0, 0, 0 }
84 static const int hwcaps[] = {
85 SR_HWCAP_LOGIC_ANALYZER,
88 /* These are really implemented in the driver, not the hardware. */
89 SR_HWCAP_LIMIT_SAMPLES,
94 static const char *probe_names[] = {
114 static const uint64_t supported_samplerates[] = {
134 static const struct sr_samplerates samplerates = {
138 supported_samplerates,
141 SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
142 static struct sr_dev_driver *di = &fx2lafw_driver_info;
143 static int hw_dev_close(struct sr_dev_inst *sdi);
144 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
146 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
149 * Check the USB configuration to determine if this is an fx2lafw device.
151 * @return TRUE if the device's configuration profile match fx2lafw
152 * configuration, FALSE otherwise.
154 static gboolean check_conf_profile(libusb_device *dev)
156 struct libusb_device_descriptor des;
157 struct libusb_device_handle *hdl;
159 unsigned char strdesc[64];
164 /* Assume the FW has not been loaded, unless proven wrong. */
165 if (libusb_get_device_descriptor(dev, &des) != 0)
168 if (libusb_open(dev, &hdl) != 0)
171 if (libusb_get_string_descriptor_ascii(hdl,
172 des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
174 if (strncmp((const char *)strdesc, "sigrok", 6))
177 if (libusb_get_string_descriptor_ascii(hdl,
178 des.iProduct, strdesc, sizeof(strdesc)) < 0)
180 if (strncmp((const char *)strdesc, "fx2lafw", 7))
183 /* If we made it here, it must be an fx2lafw. */
192 static int fx2lafw_dev_open(struct sr_dev_inst *sdi)
194 libusb_device **devlist;
195 struct libusb_device_descriptor des;
196 struct dev_context *devc;
197 struct drv_context *drvc;
198 struct version_info vi;
199 int ret, skip, i, device_count;
205 if (sdi->status == SR_ST_ACTIVE)
206 /* Device is already in use. */
210 device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
211 if (device_count < 0) {
212 sr_err("Failed to get device list: %s.",
213 libusb_error_name(device_count));
217 for (i = 0; i < device_count; i++) {
218 if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
219 sr_err("Failed to get device descriptor: %s.",
220 libusb_error_name(ret));
224 if (des.idVendor != devc->profile->vid
225 || des.idProduct != devc->profile->pid)
228 if (sdi->status == SR_ST_INITIALIZING) {
229 if (skip != sdi->index) {
230 /* Skip devices of this type that aren't the one we want. */
234 } else if (sdi->status == SR_ST_INACTIVE) {
236 * This device is fully enumerated, so we need to find
237 * this device by vendor, product, bus and address.
239 if (libusb_get_bus_number(devlist[i]) != devc->usb->bus
240 || libusb_get_device_address(devlist[i]) != devc->usb->address)
241 /* This is not the one. */
245 if (!(ret = libusb_open(devlist[i], &devc->usb->devhdl))) {
246 if (devc->usb->address == 0xff)
248 * First time we touch this device after FW
249 * upload, so we don't know the address yet.
251 devc->usb->address = libusb_get_device_address(devlist[i]);
253 sr_err("Failed to open device: %s.",
254 libusb_error_name(ret));
258 ret = command_get_fw_version(devc->usb->devhdl, &vi);
260 sr_err("Failed to get firmware version.");
264 ret = command_get_revid_version(devc->usb->devhdl, &revid);
266 sr_err("Failed to get REVID.");
271 * Changes in major version mean incompatible/API changes, so
272 * bail out if we encounter an incompatible version.
273 * Different minor versions are OK, they should be compatible.
275 if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) {
276 sr_err("Expected firmware version %d.x, "
277 "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR,
282 sdi->status = SR_ST_ACTIVE;
283 sr_info("Opened device %d on %d.%d, "
284 "interface %d, firmware %d.%d, REVID %d.",
285 sdi->index, devc->usb->bus, devc->usb->address,
286 USB_INTERFACE, vi.major, vi.minor, revid);
290 libusb_free_device_list(devlist, 1);
292 if (sdi->status != SR_ST_ACTIVE)
298 static int configure_probes(const struct sr_dev_inst *sdi)
300 struct dev_context *devc;
301 struct sr_probe *probe;
303 int probe_bit, stage, i;
307 for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
308 devc->trigger_mask[i] = 0;
309 devc->trigger_value[i] = 0;
313 for (l = sdi->probes; l; l = l->next) {
314 probe = (struct sr_probe *)l->data;
315 if (probe->enabled == FALSE)
318 if (probe->index > 7)
319 devc->sample_wide = TRUE;
321 probe_bit = 1 << (probe->index);
322 if (!(probe->trigger))
326 for (tc = probe->trigger; *tc; tc++) {
327 devc->trigger_mask[stage] |= probe_bit;
329 devc->trigger_value[stage] |= probe_bit;
331 if (stage > NUM_TRIGGER_STAGES)
338 * We didn't configure any triggers, make sure acquisition
339 * doesn't wait for any.
341 devc->trigger_stage = TRIGGER_FIRED;
343 devc->trigger_stage = 0;
348 static struct dev_context *fx2lafw_dev_new(void)
350 struct dev_context *devc;
352 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
353 sr_err("Device context malloc failed.");
357 devc->trigger_stage = TRIGGER_FIRED;
362 static int clear_instances(void)
365 struct sr_dev_inst *sdi;
366 struct drv_context *drvc;
367 struct dev_context *devc;
372 for (l = drvc->instances; l; l = l->next) {
373 if (!(sdi = l->data)) {
374 /* Log error, but continue cleaning up the rest. */
375 sr_err("sdi was NULL, continuing.");
379 if (!(devc = sdi->priv)) {
380 /* Log error, but continue cleaning up the rest. */
381 sr_err("sdi->priv was NULL, continuing.");
386 sr_usb_dev_inst_free(devc->usb);
388 sr_dev_inst_free(sdi);
391 g_slist_free(drvc->instances);
392 drvc->instances = NULL;
397 static int hw_init(struct sr_context *sr_ctx)
399 struct drv_context *drvc;
401 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
402 sr_err("Driver context malloc failed.");
403 return SR_ERR_MALLOC;
406 drvc->sr_ctx = sr_ctx;
412 static GSList *hw_scan(GSList *options)
415 struct libusb_device_descriptor des;
416 struct sr_dev_inst *sdi;
417 const struct fx2lafw_profile *prof;
418 struct drv_context *drvc;
419 struct dev_context *devc;
420 struct sr_probe *probe;
421 libusb_device **devlist;
422 int devcnt, num_logic_probes, ret, i, j;
428 /* This scan always invalidates any previous scans. */
431 /* Find all fx2lafw compatible devices and upload firmware to them. */
433 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
434 for (i = 0; devlist[i]; i++) {
436 if ((ret = libusb_get_device_descriptor(
437 devlist[i], &des)) != 0) {
438 sr_warn("Failed to get device descriptor: %s.",
439 libusb_error_name(ret));
444 for (j = 0; supported_fx2[j].vid; j++) {
445 if (des.idVendor == supported_fx2[j].vid &&
446 des.idProduct == supported_fx2[j].pid) {
447 prof = &supported_fx2[j];
451 /* Skip if the device was not found. */
455 devcnt = g_slist_length(drvc->instances);
456 sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
457 prof->vendor, prof->model, prof->model_version);
462 /* Fill in probelist according to this device's profile. */
463 num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
464 for (j = 0; j < num_logic_probes; j++) {
465 if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
468 sdi->probes = g_slist_append(sdi->probes, probe);
471 devc = fx2lafw_dev_new();
472 devc->profile = prof;
474 drvc->instances = g_slist_append(drvc->instances, sdi);
475 devices = g_slist_append(devices, sdi);
477 if (check_conf_profile(devlist[i])) {
478 /* Already has the firmware, so fix the new address. */
479 sr_dbg("Found an fx2lafw device.");
480 sdi->status = SR_ST_INACTIVE;
481 devc->usb = sr_usb_dev_inst_new
482 (libusb_get_bus_number(devlist[i]),
483 libusb_get_device_address(devlist[i]), NULL);
485 if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
486 prof->firmware) == SR_OK)
487 /* Store when this device's FW was updated. */
488 devc->fw_updated = g_get_monotonic_time();
490 sr_err("Firmware upload failed for "
491 "device %d.", devcnt);
492 devc->usb = sr_usb_dev_inst_new
493 (libusb_get_bus_number(devlist[i]), 0xff, NULL);
496 libusb_free_device_list(devlist, 1);
501 static GSList *hw_dev_list(void)
503 struct drv_context *drvc;
507 return drvc->instances;
510 static int hw_dev_open(struct sr_dev_inst *sdi)
512 struct dev_context *devc;
514 int64_t timediff_us, timediff_ms;
519 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
520 * milliseconds for the FX2 to renumerate.
523 if (devc->fw_updated > 0) {
524 sr_info("Waiting for device to reset.");
525 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
526 g_usleep(300 * 1000);
528 while (timediff_ms < MAX_RENUM_DELAY_MS) {
529 if ((ret = fx2lafw_dev_open(sdi)) == SR_OK)
531 g_usleep(100 * 1000);
533 timediff_us = g_get_monotonic_time() - devc->fw_updated;
534 timediff_ms = timediff_us / 1000;
535 sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
538 sr_err("Device failed to renumerate.");
541 sr_info("Device came back after %dms.",
544 sr_info("Firmware upload was not needed.");
545 ret = fx2lafw_dev_open(sdi);
549 sr_err("Unable to open device.");
555 ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
558 case LIBUSB_ERROR_BUSY:
559 sr_err("Unable to claim USB interface. Another "
560 "program or driver has already claimed it.");
562 case LIBUSB_ERROR_NO_DEVICE:
563 sr_err("Device has been disconnected.");
566 sr_err("Unable to claim interface: %s.",
567 libusb_error_name(ret));
574 if (devc->cur_samplerate == 0) {
575 /* Samplerate hasn't been set; default to the slowest one. */
576 if (hw_dev_config_set(sdi, SR_HWCAP_SAMPLERATE,
577 &supported_samplerates[0]) == SR_ERR)
584 static int hw_dev_close(struct sr_dev_inst *sdi)
586 struct dev_context *devc;
589 if (devc->usb->devhdl == NULL)
592 sr_info("Closing device %d on %d.%d, interface %d.",
593 sdi->index, devc->usb->bus, devc->usb->address, USB_INTERFACE);
594 libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
595 libusb_close(devc->usb->devhdl);
596 devc->usb->devhdl = NULL;
597 sdi->status = SR_ST_INACTIVE;
602 static int hw_cleanup(void)
604 struct drv_context *drvc;
607 if (!(drvc = di->priv))
610 ret = clear_instances();
618 static int hw_info_get(int info_id, const void **data,
619 const struct sr_dev_inst *sdi)
621 struct dev_context *devc;
627 case SR_DI_NUM_PROBES:
630 *data = GINT_TO_POINTER(
631 (devc->profile->dev_caps & DEV_CAPS_16BIT) ?
636 case SR_DI_PROBE_NAMES:
639 case SR_DI_SAMPLERATES:
640 *data = &samplerates;
642 case SR_DI_TRIGGER_TYPES:
643 *data = TRIGGER_TYPES;
645 case SR_DI_CUR_SAMPLERATE:
648 *data = &devc->cur_samplerate;
659 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
662 struct dev_context *devc;
667 if (hwcap == SR_HWCAP_SAMPLERATE) {
668 devc->cur_samplerate = *(const uint64_t *)value;
670 } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) {
671 devc->limit_samples = *(const uint64_t *)value;
680 static int receive_data(int fd, int revents, void *cb_data)
683 struct drv_context *drvc;
691 tv.tv_sec = tv.tv_usec = 0;
692 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
697 static void abort_acquisition(struct dev_context *devc)
701 devc->num_samples = -1;
703 for (i = devc->num_transfers - 1; i >= 0; i--) {
704 if (devc->transfers[i])
705 libusb_cancel_transfer(devc->transfers[i]);
709 static void finish_acquisition(struct dev_context *devc)
711 struct sr_datafeed_packet packet;
712 struct drv_context *drvc = di->priv;
713 const struct libusb_pollfd **lupfd;
716 /* Terminate session. */
717 packet.type = SR_DF_END;
718 sr_session_send(devc->session_dev_id, &packet);
720 /* Remove fds from polling. */
721 lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
722 for (i = 0; lupfd[i]; i++)
723 sr_source_remove(lupfd[i]->fd);
724 free(lupfd); /* NOT g_free()! */
726 devc->num_transfers = 0;
727 g_free(devc->transfers);
730 static void free_transfer(struct libusb_transfer *transfer)
732 struct dev_context *devc;
735 devc = transfer->user_data;
737 g_free(transfer->buffer);
738 transfer->buffer = NULL;
739 libusb_free_transfer(transfer);
741 for (i = 0; i < devc->num_transfers; i++) {
742 if (devc->transfers[i] == transfer) {
743 devc->transfers[i] = NULL;
748 devc->submitted_transfers--;
749 if (devc->submitted_transfers == 0)
750 finish_acquisition(devc);
753 static void resubmit_transfer(struct libusb_transfer *transfer)
757 if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS)
760 free_transfer(transfer);
761 /* TODO: Stop session? */
763 sr_err("%s: %s", __func__, libusb_error_name(ret));
766 static void receive_transfer(struct libusb_transfer *transfer)
768 gboolean packet_has_error = FALSE;
769 struct sr_datafeed_packet packet;
770 struct sr_datafeed_logic logic;
771 struct dev_context *devc;
772 int trigger_offset, i, sample_width, cur_sample_count;
773 int trigger_offset_bytes;
776 devc = transfer->user_data;
779 * If acquisition has already ended, just free any queued up
780 * transfer that come in.
782 if (devc->num_samples == -1) {
783 free_transfer(transfer);
787 sr_info("receive_transfer(): status %d received %d bytes.",
788 transfer->status, transfer->actual_length);
790 /* Save incoming transfer before reusing the transfer struct. */
791 cur_buf = transfer->buffer;
792 sample_width = devc->sample_wide ? 2 : 1;
793 cur_sample_count = transfer->actual_length / sample_width;
795 switch (transfer->status) {
796 case LIBUSB_TRANSFER_NO_DEVICE:
797 abort_acquisition(devc);
798 free_transfer(transfer);
800 case LIBUSB_TRANSFER_COMPLETED:
801 case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */
804 packet_has_error = TRUE;
808 if (transfer->actual_length == 0 || packet_has_error) {
809 devc->empty_transfer_count++;
810 if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
812 * The FX2 gave up. End the acquisition, the frontend
813 * will work out that the samplecount is short.
815 abort_acquisition(devc);
816 free_transfer(transfer);
818 resubmit_transfer(transfer);
822 devc->empty_transfer_count = 0;
826 if (devc->trigger_stage >= 0) {
827 for (i = 0; i < cur_sample_count; i++) {
829 const uint16_t cur_sample = devc->sample_wide ?
830 *((const uint16_t*)cur_buf + i) :
831 *((const uint8_t*)cur_buf + i);
833 if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) ==
834 devc->trigger_value[devc->trigger_stage]) {
835 /* Match on this trigger stage. */
836 devc->trigger_buffer[devc->trigger_stage] = cur_sample;
837 devc->trigger_stage++;
839 if (devc->trigger_stage == NUM_TRIGGER_STAGES ||
840 devc->trigger_mask[devc->trigger_stage] == 0) {
841 /* Match on all trigger stages, we're done. */
842 trigger_offset = i + 1;
845 * TODO: Send pre-trigger buffer to session bus.
846 * Tell the frontend we hit the trigger here.
848 packet.type = SR_DF_TRIGGER;
849 packet.payload = NULL;
850 sr_session_send(devc->session_dev_id, &packet);
853 * Send the samples that triggered it,
854 * since we're skipping past them.
856 packet.type = SR_DF_LOGIC;
857 packet.payload = &logic;
858 logic.unitsize = sizeof(*devc->trigger_buffer);
859 logic.length = devc->trigger_stage * logic.unitsize;
860 logic.data = devc->trigger_buffer;
861 sr_session_send(devc->session_dev_id, &packet);
863 devc->trigger_stage = TRIGGER_FIRED;
866 } else if (devc->trigger_stage > 0) {
868 * We had a match before, but not in the next sample. However, we may
869 * have a match on this stage in the next bit -- trigger on 0001 will
870 * fail on seeing 00001, so we need to go back to stage 0 -- but at
871 * the next sample from the one that matched originally, which the
872 * counter increment at the end of the loop takes care of.
874 i -= devc->trigger_stage;
876 i = -1; /* Oops, went back past this buffer. */
877 /* Reset trigger stage. */
878 devc->trigger_stage = 0;
883 if (devc->trigger_stage == TRIGGER_FIRED) {
884 /* Send the incoming transfer to the session bus. */
885 trigger_offset_bytes = trigger_offset * sample_width;
886 packet.type = SR_DF_LOGIC;
887 packet.payload = &logic;
888 logic.length = transfer->actual_length - trigger_offset_bytes;
889 logic.unitsize = sample_width;
890 logic.data = cur_buf + trigger_offset_bytes;
891 sr_session_send(devc->session_dev_id, &packet);
893 devc->num_samples += cur_sample_count;
894 if (devc->limit_samples &&
895 (unsigned int)devc->num_samples > devc->limit_samples) {
896 abort_acquisition(devc);
897 free_transfer(transfer);
902 * TODO: Buffer pre-trigger data in capture
903 * ratio-sized buffer.
907 resubmit_transfer(transfer);
910 static unsigned int to_bytes_per_ms(unsigned int samplerate)
912 return samplerate / 1000;
915 static size_t get_buffer_size(struct dev_context *devc)
920 * The buffer should be large enough to hold 10ms of data and
923 s = 10 * to_bytes_per_ms(devc->cur_samplerate);
924 return (s + 511) & ~511;
927 static unsigned int get_number_of_transfers(struct dev_context *devc)
931 /* Total buffer size should be able to hold about 500ms of data. */
932 n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc);
934 if (n > NUM_SIMUL_TRANSFERS)
935 return NUM_SIMUL_TRANSFERS;
940 static unsigned int get_timeout(struct dev_context *devc)
943 unsigned int timeout;
945 total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
946 timeout = total_size / to_bytes_per_ms(devc->cur_samplerate);
947 return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
950 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
953 struct sr_datafeed_packet packet;
954 struct sr_datafeed_header header;
955 struct sr_datafeed_meta_logic meta;
956 struct dev_context *devc;
957 struct drv_context *drvc;
958 struct libusb_transfer *transfer;
959 const struct libusb_pollfd **lupfd;
960 unsigned int i, timeout, num_transfers;
968 if (devc->submitted_transfers != 0)
971 if (configure_probes(sdi) != SR_OK) {
972 sr_err("Failed to configure probes.");
976 devc->session_dev_id = cb_data;
977 devc->num_samples = 0;
978 devc->empty_transfer_count = 0;
980 timeout = get_timeout(devc);
981 num_transfers = get_number_of_transfers(devc);
982 size = get_buffer_size(devc);
984 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
985 if (!devc->transfers) {
986 sr_err("USB transfers malloc failed.");
987 return SR_ERR_MALLOC;
990 devc->num_transfers = num_transfers;
992 for (i = 0; i < num_transfers; i++) {
993 if (!(buf = g_try_malloc(size))) {
994 sr_err("USB transfer buffer malloc failed.");
995 return SR_ERR_MALLOC;
997 transfer = libusb_alloc_transfer(0);
998 libusb_fill_bulk_transfer(transfer, devc->usb->devhdl,
999 2 | LIBUSB_ENDPOINT_IN, buf, size,
1000 receive_transfer, devc, timeout);
1001 if ((ret = libusb_submit_transfer(transfer)) != 0) {
1002 sr_err("Failed to submit transfer: %s.",
1003 libusb_error_name(ret));
1004 libusb_free_transfer(transfer);
1006 abort_acquisition(devc);
1009 devc->transfers[i] = transfer;
1010 devc->submitted_transfers++;
1013 lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
1014 for (i = 0; lupfd[i]; i++)
1015 sr_source_add(lupfd[i]->fd, lupfd[i]->events,
1016 timeout, receive_data, NULL);
1017 free(lupfd); /* NOT g_free()! */
1019 packet.type = SR_DF_HEADER;
1020 packet.payload = &header;
1021 header.feed_version = 1;
1022 gettimeofday(&header.starttime, NULL);
1023 sr_session_send(cb_data, &packet);
1025 /* Send metadata about the SR_DF_LOGIC packets to come. */
1026 packet.type = SR_DF_META_LOGIC;
1027 packet.payload = &meta;
1028 meta.samplerate = devc->cur_samplerate;
1029 meta.num_probes = devc->sample_wide ? 16 : 8;
1030 sr_session_send(cb_data, &packet);
1032 if ((ret = command_start_acquisition(devc->usb->devhdl,
1033 devc->cur_samplerate, devc->sample_wide)) != SR_OK) {
1034 abort_acquisition(devc);
1041 /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
1042 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
1046 abort_acquisition(sdi->priv);
1051 SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
1053 .longname = "fx2lafw (generic driver for FX2 based LAs)",
1056 .cleanup = hw_cleanup,
1058 .dev_list = hw_dev_list,
1059 .dev_clear = clear_instances,
1060 .dev_open = hw_dev_open,
1061 .dev_close = hw_dev_close,
1062 .info_get = hw_info_get,
1063 .dev_config_set = hw_dev_config_set,
1064 .dev_acquisition_start = hw_dev_acquisition_start,
1065 .dev_acquisition_stop = hw_dev_acquisition_stop,