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/>.
27 #include "libsigrok.h"
28 #include "libsigrok-internal.h"
32 static const struct fx2lafw_profile supported_fx2[] = {
35 * EE Electronics ESLA201A
38 { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
39 FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw",
45 { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
46 FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw",
52 { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
53 FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw",
58 * EE Electronics ESLA100
60 * Robomotic BugLogic 3
62 { 0x0925, 0x3881, "Saleae", "Logic", NULL,
63 FIRMWARE_DIR "/fx2lafw-saleae-logic.fw",
67 * Default Cypress FX2 without EEPROM, e.g.:
69 * Braintechnology USB Interface V2.x
71 { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
72 FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw",
76 * Braintechnology USB-LPS
78 { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
79 FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw",
82 { 0, 0, 0, 0, 0, 0, 0 }
85 static const int hwcaps[] = {
86 SR_HWCAP_LOGIC_ANALYZER,
89 /* These are really implemented in the driver, not the hardware. */
90 SR_HWCAP_LIMIT_SAMPLES,
95 static const char *probe_names[] = {
115 static const uint64_t supported_samplerates[] = {
135 static const struct sr_samplerates samplerates = {
139 supported_samplerates,
142 SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
143 static struct sr_dev_driver *fdi = &fx2lafw_driver_info;
144 static int hw_dev_close(struct sr_dev_inst *sdi);
145 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
147 static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
151 * Check the USB configuration to determine if this is an fx2lafw device.
153 * @return TRUE if the device's configuration profile match fx2lafw
154 * configuration, FALSE otherwise.
156 static gboolean check_conf_profile(libusb_device *dev)
158 struct libusb_device_descriptor des;
159 struct libusb_device_handle *hdl;
161 unsigned char strdesc[64];
166 /* Assume the FW has not been loaded, unless proven wrong. */
167 if (libusb_get_device_descriptor(dev, &des) != 0)
170 if (libusb_open(dev, &hdl) != 0)
173 if (libusb_get_string_descriptor_ascii(hdl,
174 des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
176 if (strncmp((const char *)strdesc, "sigrok", 6))
179 if (libusb_get_string_descriptor_ascii(hdl,
180 des.iProduct, strdesc, sizeof(strdesc)) < 0)
182 if (strncmp((const char *)strdesc, "fx2lafw", 7))
185 /* If we made it here, it must be an fx2lafw. */
194 static int fx2lafw_dev_open(struct sr_dev_inst *sdi)
196 libusb_device **devlist;
197 struct libusb_device_descriptor des;
198 struct drv_context *drvc;
199 struct dev_context *devc;
200 struct version_info vi;
207 if (sdi->status == SR_ST_ACTIVE)
212 const int device_count = libusb_get_device_list(drvc->usb_context, &devlist);
213 if (device_count < 0) {
214 sr_err("fx2lafw: Failed to retrieve device list (%d)",
219 for (i = 0; i < device_count; i++) {
220 if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
221 sr_err("fx2lafw: Failed to get device descriptor: %d.",
226 if (des.idVendor != devc->profile->vid
227 || des.idProduct != devc->profile->pid)
230 if (sdi->status == SR_ST_INITIALIZING) {
231 if (skip != sdi->index) {
232 /* Skip devices of this type that aren't the one we want. */
236 } else if (sdi->status == SR_ST_INACTIVE) {
238 * This device is fully enumerated, so we need to find
239 * this device by vendor, product, bus and address.
241 if (libusb_get_bus_number(devlist[i]) != devc->usb->bus
242 || libusb_get_device_address(devlist[i]) != devc->usb->address)
243 /* this is not the one */
247 if (!(ret = libusb_open(devlist[i], &devc->usb->devhdl))) {
248 if (devc->usb->address == 0xff)
250 * first time we touch this device after firmware upload,
251 * so we don't know the address yet.
253 devc->usb->address = libusb_get_device_address(devlist[i]);
255 sr_err("fx2lafw: Failed to open device: %d.", ret);
259 ret = command_get_fw_version(devc->usb->devhdl, &vi);
261 sr_err("fx2lafw: Failed to retrieve "
262 "firmware version information.");
266 ret = command_get_revid_version(devc->usb->devhdl, &revid);
268 sr_err("fx2lafw: Failed to retrieve REVID.");
273 * Changes in major version mean incompatible/API changes, so
274 * bail out if we encounter an incompatible version.
275 * Different minor versions are OK, they should be compatible.
277 if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) {
278 sr_err("fx2lafw: Expected firmware version %d.x, "
279 "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR,
284 sdi->status = SR_ST_ACTIVE;
285 sr_info("fx2lafw: Opened device %d on %d.%d "
286 "interface %d, firmware %d.%d, REVID %d.",
287 sdi->index, devc->usb->bus, devc->usb->address,
288 USB_INTERFACE, vi.major, vi.minor, revid);
292 libusb_free_device_list(devlist, 1);
294 if (sdi->status != SR_ST_ACTIVE)
300 static int configure_probes(const struct sr_dev_inst *sdi)
302 struct dev_context *devc;
303 struct sr_probe *probe;
305 int probe_bit, stage, i;
309 for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
310 devc->trigger_mask[i] = 0;
311 devc->trigger_value[i] = 0;
315 for (l = sdi->probes; l; l = l->next) {
316 probe = (struct sr_probe *)l->data;
317 if (probe->enabled == FALSE)
320 if (probe->index > 7)
321 devc->sample_wide = TRUE;
323 probe_bit = 1 << (probe->index);
324 if (!(probe->trigger))
328 for (tc = probe->trigger; *tc; tc++) {
329 devc->trigger_mask[stage] |= probe_bit;
331 devc->trigger_value[stage] |= probe_bit;
333 if (stage > NUM_TRIGGER_STAGES)
340 * We didn't configure any triggers, make sure acquisition
341 * doesn't wait for any.
343 devc->trigger_stage = TRIGGER_FIRED;
345 devc->trigger_stage = 0;
350 static struct dev_context *fx2lafw_dev_new(void)
352 struct dev_context *devc;
354 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
355 sr_err("fx2lafw: %s: devc malloc failed.", __func__);
359 devc->trigger_stage = TRIGGER_FIRED;
364 static int clear_instances(void)
367 struct sr_dev_inst *sdi;
368 struct drv_context *drvc;
369 struct dev_context *devc;
374 for (l = drvc->instances; l; l = l->next) {
375 if (!(sdi = l->data)) {
376 /* Log error, but continue cleaning up the rest. */
377 sr_err("fx2lafw: %s: sdi was NULL, continuing.",
382 if (!(devc = sdi->priv)) {
383 /* Log error, but continue cleaning up the rest. */
384 sr_err("fx2lafw: %s: sdi->priv was NULL, continuing",
390 sr_usb_dev_inst_free(devc->usb);
392 sr_dev_inst_free(sdi);
395 g_slist_free(drvc->instances);
396 drvc->instances = NULL;
406 static int hw_init(void)
408 struct drv_context *drvc;
410 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
411 sr_err("fx2lafw: driver context malloc failed.");
415 if (libusb_init(&drvc->usb_context) != 0) {
417 sr_warn("fx2lafw: Failed to initialize libusb.");
426 static GSList *hw_scan(GSList *options)
429 struct libusb_device_descriptor des;
430 struct sr_dev_inst *sdi;
431 const struct fx2lafw_profile *prof;
432 struct drv_context *drvc;
433 struct dev_context *devc;
434 struct sr_probe *probe;
435 libusb_device **devlist;
436 int devcnt, num_logic_probes, ret, i, j;
438 /* Avoid compiler warnings. */
442 /* This scan always invalidates any previous scans. */
445 /* Find all fx2lafw compatible devices and upload firmware to them. */
447 libusb_get_device_list(drvc->usb_context, &devlist);
448 for (i = 0; devlist[i]; i++) {
450 if ((ret = libusb_get_device_descriptor(
451 devlist[i], &des)) != 0) {
452 sr_warn("fx2lafw: Failed to get device descriptor: %d.", ret);
457 for (j = 0; supported_fx2[j].vid; j++) {
458 if (des.idVendor == supported_fx2[j].vid &&
459 des.idProduct == supported_fx2[j].pid) {
460 prof = &supported_fx2[j];
464 /* Skip if the device was not found */
468 devcnt = g_slist_length(drvc->instances);
469 sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
470 prof->vendor, prof->model, prof->model_version);
475 /* Fill in probelist according to this device's profile. */
476 num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
477 for (j = 0; j < num_logic_probes; j++) {
478 if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
481 sdi->probes = g_slist_append(sdi->probes, probe);
484 devc = fx2lafw_dev_new();
485 devc->profile = prof;
487 drvc->instances = g_slist_append(drvc->instances, sdi);
488 devices = g_slist_append(devices, sdi);
490 if (check_conf_profile(devlist[i])) {
491 /* Already has the firmware, so fix the new address. */
492 sr_dbg("fx2lafw: Found an fx2lafw device.");
493 sdi->status = SR_ST_INACTIVE;
494 devc->usb = sr_usb_dev_inst_new
495 (libusb_get_bus_number(devlist[i]),
496 libusb_get_device_address(devlist[i]), NULL);
498 if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
499 prof->firmware) == SR_OK)
500 /* Remember when the firmware on this device was updated */
501 devc->fw_updated = g_get_monotonic_time();
503 sr_err("fx2lafw: Firmware upload failed for "
504 "device %d.", devcnt);
505 devc->usb = sr_usb_dev_inst_new
506 (libusb_get_bus_number(devlist[i]), 0xff, NULL);
509 libusb_free_device_list(devlist, 1);
514 static GSList *hw_dev_list(void)
516 struct drv_context *drvc;
520 return drvc->instances;
523 static int hw_dev_open(struct sr_dev_inst *sdi)
525 struct dev_context *devc;
527 int64_t timediff_us, timediff_ms;
532 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
533 * milliseconds for the FX2 to renumerate.
536 if (devc->fw_updated > 0) {
537 sr_info("fx2lafw: Waiting for device to reset.");
538 /* takes at least 300ms for the FX2 to be gone from the USB bus */
539 g_usleep(300 * 1000);
541 while (timediff_ms < MAX_RENUM_DELAY_MS) {
542 if ((ret = fx2lafw_dev_open(sdi)) == SR_OK)
544 g_usleep(100 * 1000);
546 timediff_us = g_get_monotonic_time() - devc->fw_updated;
547 timediff_ms = timediff_us / 1000;
548 sr_spew("fx2lafw: waited %" PRIi64 " ms", timediff_ms);
550 sr_info("fx2lafw: Device came back after %d ms.", timediff_ms);
552 ret = fx2lafw_dev_open(sdi);
556 sr_err("fx2lafw: Unable to open device.");
561 ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
564 case LIBUSB_ERROR_BUSY:
565 sr_err("fx2lafw: Unable to claim USB interface. Another "
566 "program or driver has already claimed it.");
569 case LIBUSB_ERROR_NO_DEVICE:
570 sr_err("fx2lafw: Device has been disconnected.");
574 sr_err("fx2lafw: Unable to claim interface: %d.", ret);
581 if (devc->cur_samplerate == 0) {
582 /* Samplerate hasn't been set; default to the slowest one. */
583 if (hw_dev_config_set(sdi, SR_HWCAP_SAMPLERATE,
584 &supported_samplerates[0]) == SR_ERR)
591 static int hw_dev_close(struct sr_dev_inst *sdi)
593 struct dev_context *devc;
596 if (devc->usb->devhdl == NULL)
599 sr_info("fx2lafw: Closing device %d on %d.%d interface %d.",
600 sdi->index, devc->usb->bus, devc->usb->address, USB_INTERFACE);
601 libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
602 libusb_close(devc->usb->devhdl);
603 devc->usb->devhdl = NULL;
604 sdi->status = SR_ST_INACTIVE;
609 static int hw_cleanup(void)
611 struct drv_context *drvc;
614 if (!(drvc = fdi->priv))
617 ret = clear_instances();
619 if (drvc->usb_context)
620 libusb_exit(drvc->usb_context);
621 drvc->usb_context = NULL;
629 static int hw_info_get(int info_id, const void **data,
630 const struct sr_dev_inst *sdi)
632 struct dev_context *devc;
638 case SR_DI_NUM_PROBES:
641 *data = GINT_TO_POINTER(
642 (devc->profile->dev_caps & DEV_CAPS_16BIT) ?
647 case SR_DI_PROBE_NAMES:
650 case SR_DI_SAMPLERATES:
651 *data = &samplerates;
653 case SR_DI_TRIGGER_TYPES:
654 *data = TRIGGER_TYPES;
656 case SR_DI_CUR_SAMPLERATE:
659 *data = &devc->cur_samplerate;
670 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
673 struct dev_context *devc;
678 if (hwcap == SR_HWCAP_SAMPLERATE) {
679 devc->cur_samplerate = *(const uint64_t *)value;
681 } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) {
682 devc->limit_samples = *(const uint64_t *)value;
691 static int receive_data(int fd, int revents, void *cb_data)
693 struct drv_context *drvc;
696 /* Avoid compiler warnings. */
702 tv.tv_sec = tv.tv_usec = 0;
703 libusb_handle_events_timeout(drvc->usb_context, &tv);
708 static void abort_acquisition(struct dev_context *devc)
712 devc->num_samples = -1;
714 for (i = devc->num_transfers - 1; i >= 0; i--) {
715 if (devc->transfers[i])
716 libusb_cancel_transfer(devc->transfers[i]);
720 static void finish_acquisition(struct dev_context *devc)
722 struct drv_context *drvc;
723 struct sr_datafeed_packet packet;
728 /* Terminate session */
729 packet.type = SR_DF_END;
730 sr_session_send(devc->session_dev_id, &packet);
732 /* Remove fds from polling */
733 const struct libusb_pollfd **const lupfd =
734 libusb_get_pollfds(drvc->usb_context);
735 for (i = 0; lupfd[i]; i++)
736 sr_source_remove(lupfd[i]->fd);
737 free(lupfd); /* NOT g_free()! */
739 devc->num_transfers = 0;
740 g_free(devc->transfers);
743 static void free_transfer(struct libusb_transfer *transfer)
745 struct dev_context *devc = transfer->user_data;
748 g_free(transfer->buffer);
749 transfer->buffer = NULL;
750 libusb_free_transfer(transfer);
752 for (i = 0; i < devc->num_transfers; i++) {
753 if (devc->transfers[i] == transfer) {
754 devc->transfers[i] = NULL;
759 devc->submitted_transfers--;
760 if (devc->submitted_transfers == 0)
761 finish_acquisition(devc);
765 static void resubmit_transfer(struct libusb_transfer *transfer)
767 if (libusb_submit_transfer(transfer) != 0) {
768 free_transfer(transfer);
769 /* TODO: Stop session? */
770 /* TODO: Better error message. */
771 sr_err("fx2lafw: %s: libusb_submit_transfer error.", __func__);
775 static void receive_transfer(struct libusb_transfer *transfer)
777 gboolean packet_has_error = FALSE;
778 struct sr_datafeed_packet packet;
779 struct sr_datafeed_logic logic;
780 struct dev_context *devc = transfer->user_data;
781 int trigger_offset, i;
784 * If acquisition has already ended, just free any queued up
785 * transfer that come in.
787 if (devc->num_samples == -1) {
788 free_transfer(transfer);
792 sr_info("fx2lafw: receive_transfer(): status %d received %d bytes.",
793 transfer->status, transfer->actual_length);
795 /* Save incoming transfer before reusing the transfer struct. */
796 uint8_t *const cur_buf = transfer->buffer;
797 const int sample_width = devc->sample_wide ? 2 : 1;
798 const int cur_sample_count = transfer->actual_length / sample_width;
800 switch (transfer->status) {
801 case LIBUSB_TRANSFER_NO_DEVICE:
802 abort_acquisition(devc);
803 free_transfer(transfer);
805 case LIBUSB_TRANSFER_COMPLETED:
806 case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though */
809 packet_has_error = TRUE;
813 if (transfer->actual_length == 0 || packet_has_error) {
814 devc->empty_transfer_count++;
815 if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
817 * The FX2 gave up. End the acquisition, the frontend
818 * will work out that the samplecount is short.
820 abort_acquisition(devc);
821 free_transfer(transfer);
823 resubmit_transfer(transfer);
827 devc->empty_transfer_count = 0;
831 if (devc->trigger_stage >= 0) {
832 for (i = 0; i < cur_sample_count; i++) {
834 const uint16_t cur_sample = devc->sample_wide ?
835 *((const uint16_t*)cur_buf + i) :
836 *((const uint8_t*)cur_buf + i);
838 if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) ==
839 devc->trigger_value[devc->trigger_stage]) {
840 /* Match on this trigger stage. */
841 devc->trigger_buffer[devc->trigger_stage] = cur_sample;
842 devc->trigger_stage++;
844 if (devc->trigger_stage == NUM_TRIGGER_STAGES ||
845 devc->trigger_mask[devc->trigger_stage] == 0) {
846 /* Match on all trigger stages, we're done. */
847 trigger_offset = i + 1;
850 * TODO: Send pre-trigger buffer to session bus.
851 * Tell the frontend we hit the trigger here.
853 packet.type = SR_DF_TRIGGER;
854 packet.payload = NULL;
855 sr_session_send(devc->session_dev_id, &packet);
858 * Send the samples that triggered it, since we're
859 * skipping past them.
861 packet.type = SR_DF_LOGIC;
862 packet.payload = &logic;
863 logic.unitsize = sizeof(*devc->trigger_buffer);
864 logic.length = devc->trigger_stage * logic.unitsize;
865 logic.data = devc->trigger_buffer;
866 sr_session_send(devc->session_dev_id, &packet);
868 devc->trigger_stage = TRIGGER_FIRED;
871 } else if (devc->trigger_stage > 0) {
873 * We had a match before, but not in the next sample. However, we may
874 * have a match on this stage in the next bit -- trigger on 0001 will
875 * fail on seeing 00001, so we need to go back to stage 0 -- but at
876 * the next sample from the one that matched originally, which the
877 * counter increment at the end of the loop takes care of.
879 i -= devc->trigger_stage;
881 i = -1; /* Oops, went back past this buffer. */
882 /* Reset trigger stage. */
883 devc->trigger_stage = 0;
888 if (devc->trigger_stage == TRIGGER_FIRED) {
889 /* Send the incoming transfer to the session bus. */
890 const int trigger_offset_bytes = trigger_offset * sample_width;
891 packet.type = SR_DF_LOGIC;
892 packet.payload = &logic;
893 logic.length = transfer->actual_length - trigger_offset_bytes;
894 logic.unitsize = sample_width;
895 logic.data = cur_buf + trigger_offset_bytes;
896 sr_session_send(devc->session_dev_id, &packet);
898 devc->num_samples += cur_sample_count;
899 if (devc->limit_samples &&
900 (unsigned int)devc->num_samples > devc->limit_samples) {
901 abort_acquisition(devc);
902 free_transfer(transfer);
907 * TODO: Buffer pre-trigger data in capture
908 * ratio-sized buffer.
912 resubmit_transfer(transfer);
915 static unsigned int to_bytes_per_ms(unsigned int samplerate)
917 return samplerate / 1000;
920 static size_t get_buffer_size(struct dev_context *devc)
924 /* The buffer should be large enough to hold 10ms of data and a multiple
926 s = 10 * to_bytes_per_ms(devc->cur_samplerate);
927 return (s + 511) & ~511;
930 static unsigned int get_number_of_transfers(struct dev_context *devc)
934 /* Total buffer size should be able to hold about 500ms of data */
935 n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc);
937 if (n > NUM_SIMUL_TRANSFERS)
938 return NUM_SIMUL_TRANSFERS;
943 static unsigned int get_timeout(struct dev_context *devc)
946 unsigned int timeout;
948 total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
949 timeout = total_size / to_bytes_per_ms(devc->cur_samplerate);
950 return timeout + timeout / 4; /* Leave a headroom of 25% percent */
953 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
956 struct sr_datafeed_packet packet;
957 struct sr_datafeed_header header;
958 struct sr_datafeed_meta_logic meta;
959 struct drv_context *drvc;
960 struct dev_context *devc;
961 struct libusb_transfer *transfer;
962 const struct libusb_pollfd **lupfd;
969 if (devc->submitted_transfers != 0)
972 if (configure_probes(sdi) != SR_OK) {
973 sr_err("fx2lafw: failed to configured probes");
977 devc->session_dev_id = cb_data;
978 devc->num_samples = 0;
979 devc->empty_transfer_count = 0;
981 const unsigned int timeout = get_timeout(devc);
982 const unsigned int num_transfers = get_number_of_transfers(devc);
983 const size_t size = get_buffer_size(devc);
985 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
986 if (!devc->transfers)
989 devc->num_transfers = num_transfers;
991 for (i = 0; i < num_transfers; i++) {
992 if (!(buf = g_try_malloc(size))) {
993 sr_err("fx2lafw: %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 (libusb_submit_transfer(transfer) != 0) {
1001 libusb_free_transfer(transfer);
1003 abort_acquisition(devc);
1006 devc->transfers[i] = transfer;
1007 devc->submitted_transfers++;
1010 lupfd = libusb_get_pollfds(drvc->usb_context);
1011 for (i = 0; lupfd[i]; i++)
1012 sr_source_add(lupfd[i]->fd, lupfd[i]->events,
1013 timeout, receive_data, NULL);
1014 free(lupfd); /* NOT g_free()! */
1016 packet.type = SR_DF_HEADER;
1017 packet.payload = &header;
1018 header.feed_version = 1;
1019 gettimeofday(&header.starttime, NULL);
1020 sr_session_send(cb_data, &packet);
1022 /* Send metadata about the SR_DF_LOGIC packets to come. */
1023 packet.type = SR_DF_META_LOGIC;
1024 packet.payload = &meta;
1025 meta.samplerate = devc->cur_samplerate;
1026 meta.num_probes = devc->sample_wide ? 16 : 8;
1027 sr_session_send(cb_data, &packet);
1029 if ((ret = command_start_acquisition (devc->usb->devhdl,
1030 devc->cur_samplerate, devc->sample_wide)) != SR_OK) {
1031 abort_acquisition(devc);
1038 /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
1039 static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
1043 /* Avoid compiler warnings. */
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,