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 *fdi = &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 = fdi->priv;
198 struct version_info vi;
204 if (sdi->status == SR_ST_ACTIVE)
209 const int device_count = libusb_get_device_list(
210 drvc->sr_ctx->libusb_ctx, &devlist);
211 if (device_count < 0) {
212 sr_err("Failed to retrieve device list (%d)",
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 firmware upload,
249 * 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 retrieve "
261 "firmware version information.");
265 ret = command_get_revid_version(devc->usb->devhdl, &revid);
267 sr_err("Failed to retrieve REVID.");
272 * Changes in major version mean incompatible/API changes, so
273 * bail out if we encounter an incompatible version.
274 * Different minor versions are OK, they should be compatible.
276 if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) {
277 sr_err("Expected firmware version %d.x, "
278 "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR,
283 sdi->status = SR_ST_ACTIVE;
284 sr_info("Opened device %d on %d.%d "
285 "interface %d, firmware %d.%d, REVID %d.",
286 sdi->index, devc->usb->bus, devc->usb->address,
287 USB_INTERFACE, vi.major, vi.minor, revid);
291 libusb_free_device_list(devlist, 1);
293 if (sdi->status != SR_ST_ACTIVE)
299 static int configure_probes(const struct sr_dev_inst *sdi)
301 struct dev_context *devc;
302 struct sr_probe *probe;
304 int probe_bit, stage, i;
308 for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
309 devc->trigger_mask[i] = 0;
310 devc->trigger_value[i] = 0;
314 for (l = sdi->probes; l; l = l->next) {
315 probe = (struct sr_probe *)l->data;
316 if (probe->enabled == FALSE)
319 if (probe->index > 7)
320 devc->sample_wide = TRUE;
322 probe_bit = 1 << (probe->index);
323 if (!(probe->trigger))
327 for (tc = probe->trigger; *tc; tc++) {
328 devc->trigger_mask[stage] |= probe_bit;
330 devc->trigger_value[stage] |= probe_bit;
332 if (stage > NUM_TRIGGER_STAGES)
339 * We didn't configure any triggers, make sure acquisition
340 * doesn't wait for any.
342 devc->trigger_stage = TRIGGER_FIRED;
344 devc->trigger_stage = 0;
349 static struct dev_context *fx2lafw_dev_new(void)
351 struct dev_context *devc;
353 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
354 sr_err("%s: devc malloc failed.", __func__);
358 devc->trigger_stage = TRIGGER_FIRED;
363 static int clear_instances(void)
366 struct sr_dev_inst *sdi;
367 struct drv_context *drvc;
368 struct dev_context *devc;
373 for (l = drvc->instances; l; l = l->next) {
374 if (!(sdi = l->data)) {
375 /* Log error, but continue cleaning up the rest. */
376 sr_err("%s: sdi was NULL, continuing.",
381 if (!(devc = sdi->priv)) {
382 /* Log error, but continue cleaning up the rest. */
383 sr_err("%s: sdi->priv was NULL, continuing",
389 sr_usb_dev_inst_free(devc->usb);
391 sr_dev_inst_free(sdi);
394 g_slist_free(drvc->instances);
395 drvc->instances = NULL;
405 static int hw_init(struct sr_context *sr_ctx)
407 struct drv_context *drvc;
409 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
410 sr_err("Driver context malloc failed.");
411 return SR_ERR_MALLOC;
414 drvc->sr_ctx = sr_ctx;
420 static GSList *hw_scan(GSList *options)
423 struct libusb_device_descriptor des;
424 struct sr_dev_inst *sdi;
425 const struct fx2lafw_profile *prof;
426 struct drv_context *drvc;
427 struct dev_context *devc;
428 struct sr_probe *probe;
429 libusb_device **devlist;
430 int devcnt, num_logic_probes, ret, i, j;
436 /* This scan always invalidates any previous scans. */
439 /* Find all fx2lafw compatible devices and upload firmware to them. */
441 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
442 for (i = 0; devlist[i]; i++) {
444 if ((ret = libusb_get_device_descriptor(
445 devlist[i], &des)) != 0) {
446 sr_warn("Failed to get device descriptor: %s.",
447 libusb_error_name(ret));
452 for (j = 0; supported_fx2[j].vid; j++) {
453 if (des.idVendor == supported_fx2[j].vid &&
454 des.idProduct == supported_fx2[j].pid) {
455 prof = &supported_fx2[j];
459 /* Skip if the device was not found */
463 devcnt = g_slist_length(drvc->instances);
464 sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
465 prof->vendor, prof->model, prof->model_version);
470 /* Fill in probelist according to this device's profile. */
471 num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
472 for (j = 0; j < num_logic_probes; j++) {
473 if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
476 sdi->probes = g_slist_append(sdi->probes, probe);
479 devc = fx2lafw_dev_new();
480 devc->profile = prof;
482 drvc->instances = g_slist_append(drvc->instances, sdi);
483 devices = g_slist_append(devices, sdi);
485 if (check_conf_profile(devlist[i])) {
486 /* Already has the firmware, so fix the new address. */
487 sr_dbg("Found an fx2lafw device.");
488 sdi->status = SR_ST_INACTIVE;
489 devc->usb = sr_usb_dev_inst_new
490 (libusb_get_bus_number(devlist[i]),
491 libusb_get_device_address(devlist[i]), NULL);
493 if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
494 prof->firmware) == SR_OK)
495 /* Remember when the firmware on this device was updated */
496 devc->fw_updated = g_get_monotonic_time();
498 sr_err("Firmware upload failed for "
499 "device %d.", devcnt);
500 devc->usb = sr_usb_dev_inst_new
501 (libusb_get_bus_number(devlist[i]), 0xff, NULL);
504 libusb_free_device_list(devlist, 1);
509 static GSList *hw_dev_list(void)
511 struct drv_context *drvc;
515 return drvc->instances;
518 static int hw_dev_open(struct sr_dev_inst *sdi)
520 struct dev_context *devc;
522 int64_t timediff_us, timediff_ms;
527 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
528 * milliseconds for the FX2 to renumerate.
531 if (devc->fw_updated > 0) {
532 sr_info("Waiting for device to reset.");
533 /* takes at least 300ms for the FX2 to be gone from the USB bus */
534 g_usleep(300 * 1000);
536 while (timediff_ms < MAX_RENUM_DELAY_MS) {
537 if ((ret = fx2lafw_dev_open(sdi)) == SR_OK)
539 g_usleep(100 * 1000);
541 timediff_us = g_get_monotonic_time() - devc->fw_updated;
542 timediff_ms = timediff_us / 1000;
543 sr_spew("Waited %" PRIi64 " ms", timediff_ms);
546 sr_err("Device failed to renumerate.");
549 sr_info("Device came back after %d ms.",
552 sr_info("Firmware upload was not needed.");
553 ret = fx2lafw_dev_open(sdi);
557 sr_err("Unable to open device.");
563 ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
566 case LIBUSB_ERROR_BUSY:
567 sr_err("Unable to claim USB interface. Another "
568 "program or driver has already claimed it.");
571 case LIBUSB_ERROR_NO_DEVICE:
572 sr_err("Device has been disconnected.");
576 sr_err("Unable to claim interface: %s.",
577 libusb_error_name(ret));
584 if (devc->cur_samplerate == 0) {
585 /* Samplerate hasn't been set; default to the slowest one. */
586 if (hw_dev_config_set(sdi, SR_HWCAP_SAMPLERATE,
587 &supported_samplerates[0]) == SR_ERR)
594 static int hw_dev_close(struct sr_dev_inst *sdi)
596 struct dev_context *devc;
599 if (devc->usb->devhdl == NULL)
602 sr_info("Closing device %d on %d.%d interface %d.",
603 sdi->index, devc->usb->bus, devc->usb->address, USB_INTERFACE);
604 libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
605 libusb_close(devc->usb->devhdl);
606 devc->usb->devhdl = NULL;
607 sdi->status = SR_ST_INACTIVE;
612 static int hw_cleanup(void)
614 struct drv_context *drvc;
617 if (!(drvc = fdi->priv))
620 ret = clear_instances();
628 static int hw_info_get(int info_id, const void **data,
629 const struct sr_dev_inst *sdi)
631 struct dev_context *devc;
637 case SR_DI_NUM_PROBES:
640 *data = GINT_TO_POINTER(
641 (devc->profile->dev_caps & DEV_CAPS_16BIT) ?
646 case SR_DI_PROBE_NAMES:
649 case SR_DI_SAMPLERATES:
650 *data = &samplerates;
652 case SR_DI_TRIGGER_TYPES:
653 *data = TRIGGER_TYPES;
655 case SR_DI_CUR_SAMPLERATE:
658 *data = &devc->cur_samplerate;
669 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
672 struct dev_context *devc;
677 if (hwcap == SR_HWCAP_SAMPLERATE) {
678 devc->cur_samplerate = *(const uint64_t *)value;
680 } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) {
681 devc->limit_samples = *(const uint64_t *)value;
690 static int receive_data(int fd, int revents, void *cb_data)
693 struct drv_context *drvc = fdi->priv;
699 tv.tv_sec = tv.tv_usec = 0;
700 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
705 static void abort_acquisition(struct dev_context *devc)
709 devc->num_samples = -1;
711 for (i = devc->num_transfers - 1; i >= 0; i--) {
712 if (devc->transfers[i])
713 libusb_cancel_transfer(devc->transfers[i]);
717 static void finish_acquisition(struct dev_context *devc)
719 struct sr_datafeed_packet packet;
720 struct drv_context *drvc = fdi->priv;
724 /* Terminate session */
725 packet.type = SR_DF_END;
726 sr_session_send(devc->session_dev_id, &packet);
728 /* Remove fds from polling */
729 const struct libusb_pollfd **const lupfd =
730 libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
731 for (i = 0; lupfd[i]; i++)
732 sr_source_remove(lupfd[i]->fd);
733 free(lupfd); /* NOT g_free()! */
735 devc->num_transfers = 0;
736 g_free(devc->transfers);
739 static void free_transfer(struct libusb_transfer *transfer)
741 struct dev_context *devc = transfer->user_data;
744 g_free(transfer->buffer);
745 transfer->buffer = NULL;
746 libusb_free_transfer(transfer);
748 for (i = 0; i < devc->num_transfers; i++) {
749 if (devc->transfers[i] == transfer) {
750 devc->transfers[i] = NULL;
755 devc->submitted_transfers--;
756 if (devc->submitted_transfers == 0)
757 finish_acquisition(devc);
761 static void resubmit_transfer(struct libusb_transfer *transfer)
763 int ret = libusb_submit_transfer(transfer);
765 if (LIBUSB_SUCCESS == ret)
768 free_transfer(transfer);
769 /* TODO: Stop session? */
771 sr_err("%s: %s", __func__, libusb_error_name(ret));
774 static void receive_transfer(struct libusb_transfer *transfer)
776 gboolean packet_has_error = FALSE;
777 struct sr_datafeed_packet packet;
778 struct sr_datafeed_logic logic;
779 struct dev_context *devc = transfer->user_data;
780 int trigger_offset, i;
783 * If acquisition has already ended, just free any queued up
784 * transfer that come in.
786 if (devc->num_samples == -1) {
787 free_transfer(transfer);
791 sr_info("receive_transfer(): status %d received %d bytes.",
792 transfer->status, transfer->actual_length);
794 /* Save incoming transfer before reusing the transfer struct. */
795 uint8_t *const cur_buf = transfer->buffer;
796 const int sample_width = devc->sample_wide ? 2 : 1;
797 const int cur_sample_count = transfer->actual_length / sample_width;
799 switch (transfer->status) {
800 case LIBUSB_TRANSFER_NO_DEVICE:
801 abort_acquisition(devc);
802 free_transfer(transfer);
804 case LIBUSB_TRANSFER_COMPLETED:
805 case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though */
808 packet_has_error = TRUE;
812 if (transfer->actual_length == 0 || packet_has_error) {
813 devc->empty_transfer_count++;
814 if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
816 * The FX2 gave up. End the acquisition, the frontend
817 * will work out that the samplecount is short.
819 abort_acquisition(devc);
820 free_transfer(transfer);
822 resubmit_transfer(transfer);
826 devc->empty_transfer_count = 0;
830 if (devc->trigger_stage >= 0) {
831 for (i = 0; i < cur_sample_count; i++) {
833 const uint16_t cur_sample = devc->sample_wide ?
834 *((const uint16_t*)cur_buf + i) :
835 *((const uint8_t*)cur_buf + i);
837 if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) ==
838 devc->trigger_value[devc->trigger_stage]) {
839 /* Match on this trigger stage. */
840 devc->trigger_buffer[devc->trigger_stage] = cur_sample;
841 devc->trigger_stage++;
843 if (devc->trigger_stage == NUM_TRIGGER_STAGES ||
844 devc->trigger_mask[devc->trigger_stage] == 0) {
845 /* Match on all trigger stages, we're done. */
846 trigger_offset = i + 1;
849 * TODO: Send pre-trigger buffer to session bus.
850 * Tell the frontend we hit the trigger here.
852 packet.type = SR_DF_TRIGGER;
853 packet.payload = NULL;
854 sr_session_send(devc->session_dev_id, &packet);
857 * Send the samples that triggered it, since we're
858 * skipping past them.
860 packet.type = SR_DF_LOGIC;
861 packet.payload = &logic;
862 logic.unitsize = sizeof(*devc->trigger_buffer);
863 logic.length = devc->trigger_stage * logic.unitsize;
864 logic.data = devc->trigger_buffer;
865 sr_session_send(devc->session_dev_id, &packet);
867 devc->trigger_stage = TRIGGER_FIRED;
870 } else if (devc->trigger_stage > 0) {
872 * We had a match before, but not in the next sample. However, we may
873 * have a match on this stage in the next bit -- trigger on 0001 will
874 * fail on seeing 00001, so we need to go back to stage 0 -- but at
875 * the next sample from the one that matched originally, which the
876 * counter increment at the end of the loop takes care of.
878 i -= devc->trigger_stage;
880 i = -1; /* Oops, went back past this buffer. */
881 /* Reset trigger stage. */
882 devc->trigger_stage = 0;
887 if (devc->trigger_stage == TRIGGER_FIRED) {
888 /* Send the incoming transfer to the session bus. */
889 const int trigger_offset_bytes = trigger_offset * sample_width;
890 packet.type = SR_DF_LOGIC;
891 packet.payload = &logic;
892 logic.length = transfer->actual_length - trigger_offset_bytes;
893 logic.unitsize = sample_width;
894 logic.data = cur_buf + trigger_offset_bytes;
895 sr_session_send(devc->session_dev_id, &packet);
897 devc->num_samples += cur_sample_count;
898 if (devc->limit_samples &&
899 (unsigned int)devc->num_samples > devc->limit_samples) {
900 abort_acquisition(devc);
901 free_transfer(transfer);
906 * TODO: Buffer pre-trigger data in capture
907 * ratio-sized buffer.
911 resubmit_transfer(transfer);
914 static unsigned int to_bytes_per_ms(unsigned int samplerate)
916 return samplerate / 1000;
919 static size_t get_buffer_size(struct dev_context *devc)
923 /* The buffer should be large enough to hold 10ms of data and a multiple
925 s = 10 * to_bytes_per_ms(devc->cur_samplerate);
926 return (s + 511) & ~511;
929 static unsigned int get_number_of_transfers(struct dev_context *devc)
933 /* Total buffer size should be able to hold about 500ms of data */
934 n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc);
936 if (n > NUM_SIMUL_TRANSFERS)
937 return NUM_SIMUL_TRANSFERS;
942 static unsigned int get_timeout(struct dev_context *devc)
945 unsigned int timeout;
947 total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
948 timeout = total_size / to_bytes_per_ms(devc->cur_samplerate);
949 return timeout + timeout / 4; /* Leave a headroom of 25% percent */
952 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
955 struct sr_datafeed_packet packet;
956 struct sr_datafeed_header header;
957 struct sr_datafeed_meta_logic meta;
958 struct dev_context *devc;
959 struct drv_context *drvc = fdi->priv;
960 struct libusb_transfer *transfer;
961 const struct libusb_pollfd **lupfd;
967 if (devc->submitted_transfers != 0)
970 if (configure_probes(sdi) != SR_OK) {
971 sr_err("Failed to configured probes");
975 devc->session_dev_id = cb_data;
976 devc->num_samples = 0;
977 devc->empty_transfer_count = 0;
979 const unsigned int timeout = get_timeout(devc);
980 const unsigned int num_transfers = get_number_of_transfers(devc);
981 const size_t size = get_buffer_size(devc);
983 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
984 if (!devc->transfers) {
985 sr_err("USB transfers malloc failed.");
986 return SR_ERR_MALLOC;
989 devc->num_transfers = num_transfers;
991 for (i = 0; i < num_transfers; i++) {
992 if (!(buf = g_try_malloc(size))) {
993 sr_err("%s: buf malloc failed.", __func__);
994 return SR_ERR_MALLOC;
996 transfer = libusb_alloc_transfer(0);
997 libusb_fill_bulk_transfer(transfer, devc->usb->devhdl,
998 2 | LIBUSB_ENDPOINT_IN, buf, size,
999 receive_transfer, devc, timeout);
1000 if ((ret = libusb_submit_transfer(transfer)) != 0) {
1001 sr_err("%s: libusb_submit_transfer: %s.",
1002 __func__, libusb_error_name(ret));
1003 libusb_free_transfer(transfer);
1005 abort_acquisition(devc);
1008 devc->transfers[i] = transfer;
1009 devc->submitted_transfers++;
1012 lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
1013 for (i = 0; lupfd[i]; i++)
1014 sr_source_add(lupfd[i]->fd, lupfd[i]->events,
1015 timeout, receive_data, NULL);
1016 free(lupfd); /* NOT g_free()! */
1018 packet.type = SR_DF_HEADER;
1019 packet.payload = &header;
1020 header.feed_version = 1;
1021 gettimeofday(&header.starttime, NULL);
1022 sr_session_send(cb_data, &packet);
1024 /* Send metadata about the SR_DF_LOGIC packets to come. */
1025 packet.type = SR_DF_META_LOGIC;
1026 packet.payload = &meta;
1027 meta.samplerate = devc->cur_samplerate;
1028 meta.num_probes = devc->sample_wide ? 16 : 8;
1029 sr_session_send(cb_data, &packet);
1031 if ((ret = command_start_acquisition (devc->usb->devhdl,
1032 devc->cur_samplerate, devc->sample_wide)) != SR_OK) {
1033 abort_acquisition(devc);
1040 /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
1041 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
1045 abort_acquisition(sdi->priv);
1050 SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
1052 .longname = "fx2lafw (generic driver for FX2 based LAs)",
1055 .cleanup = hw_cleanup,
1057 .dev_list = hw_dev_list,
1058 .dev_clear = clear_instances,
1059 .dev_open = hw_dev_open,
1060 .dev_close = hw_dev_close,
1061 .info_get = hw_info_get,
1062 .dev_config_set = hw_dev_config_set,
1063 .dev_acquisition_start = hw_dev_acquisition_start,
1064 .dev_acquisition_stop = hw_dev_acquisition_stop,