2 * This file is part of the libsigrok project.
4 * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
5 * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
6 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
7 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * This driver implementation initially was derived from the
25 * src/hardware/saleae-logic16/ source code.
30 #include <libsigrok/libsigrok.h>
33 #include "libsigrok-internal.h"
36 static const uint32_t scanopts[] = {
40 static const uint32_t drvopts[] = {
41 SR_CONF_LOGIC_ANALYZER,
42 SR_CONF_SIGNAL_GENERATOR,
45 static const uint32_t devopts[] = {
46 /* TODO: SR_CONF_CONTINUOUS, */
47 SR_CONF_CONN | SR_CONF_GET,
48 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
49 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
50 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
51 #if WITH_THRESHOLD_DEVCFG
52 SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
54 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
55 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
58 static const uint32_t devopts_cg_logic[] = {
59 #if !WITH_THRESHOLD_DEVCFG
60 SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
64 static const uint32_t devopts_cg_pwm[] = {
65 SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
66 SR_CONF_OUTPUT_FREQUENCY | SR_CONF_GET | SR_CONF_SET,
67 SR_CONF_DUTY_CYCLE | SR_CONF_GET | SR_CONF_SET,
70 static const int32_t trigger_matches[] = {
77 static const char *channel_names_logic[] = {
78 "CH0", "CH1", "CH2", "CH3", "CH4", "CH5", "CH6", "CH7",
79 "CH8", "CH9", "CH10", "CH11", "CH12", "CH13", "CH14", "CH15",
80 "CH16", "CH17", "CH18", "CH19", "CH20", "CH21", "CH22", "CH23",
81 "CH24", "CH25", "CH26", "CH27", "CH28", "CH29", "CH30", "CH31",
84 static const char *channel_names_pwm[] = {
89 * The hardware uses a 100/200/500MHz base clock (model dependent) and
90 * a 16bit divider (common across all models). The range from 10kHz to
91 * 100/200/500MHz should be applicable to all devices. High rates may
92 * suffer from coarse resolution (e.g. in the "500MHz div 2" case) and
93 * may not provide the desired 1/2/5 steps. Fortunately this exclusively
94 * affects the 500MHz model where 250MHz is used instead of 200MHz and
95 * the 166MHz and 125MHz rates are not presented to users. Deep memory
96 * of these models and hardware compression reduce the necessity to let
97 * users pick from a huge list of possible rates.
101 static const uint64_t rates_500mhz[] = {
119 static const uint64_t rates_200mhz[] = {
136 static const uint64_t rates_100mhz[] = {
153 * Only list a few discrete voltages, to form a useful set which covers
154 * most logic families. Too many choices can make some applications use
155 * a slider again. Which may lack a scale for the current value, and
156 * leave users without feedback what the currently used value might be.
158 static const double threshold_ranges[][2] = {
163 { 1.4, 1.4, }, /* Default, 1.4V, index 4. */
168 #define LOGIC_THRESHOLD_IDX_DFLT 4
170 static double threshold_voltage(const struct sr_dev_inst *sdi, double *high)
172 struct dev_context *devc;
177 idx = devc->threshold_voltage_idx;
178 voltage = threshold_ranges[idx][0];
180 *high = threshold_ranges[idx][1];
185 /* Convenience. Release an allocated devc from error paths. */
186 static void kingst_la2016_free_devc(struct dev_context *devc)
190 g_free(devc->mcu_firmware);
191 g_free(devc->fpga_bitstream);
195 /* Convenience. Release an allocated sdi from error paths. */
196 static void kingst_la2016_free_sdi(struct sr_dev_inst *sdi)
202 g_free(sdi->version);
203 g_free(sdi->serial_num);
204 g_free(sdi->connection_id);
205 sr_usb_dev_inst_free(sdi->conn);
206 kingst_la2016_free_devc(sdi->priv);
209 /* Convenience. Open a USB device (including claiming an interface). */
210 static int la2016_open_usb(struct sr_usb_dev_inst *usb,
211 libusb_device *dev, gboolean show_message)
215 ret = libusb_open(dev, &usb->devhdl);
218 sr_err("Cannot open device: %s.",
219 libusb_error_name(ret));
224 if (usb->address == 0xff) {
226 * First encounter after firmware upload.
227 * Grab current address after enumeration.
229 usb->address = libusb_get_device_address(dev);
232 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
233 if (ret == LIBUSB_ERROR_BUSY) {
234 sr_err("Cannot claim USB interface. Another program or driver using it?");
236 } else if (ret == LIBUSB_ERROR_NO_DEVICE) {
237 sr_err("Device has been disconnected.");
239 } else if (ret != 0) {
240 sr_err("Cannot claim USB interface: %s.",
241 libusb_error_name(ret));
248 /* Convenience. Close an opened USB device (and release the interface). */
249 static void la2016_close_usb(struct sr_usb_dev_inst *usb)
256 libusb_release_interface(usb->devhdl, USB_INTERFACE);
257 libusb_close(usb->devhdl);
262 /* Communicate to an USB device to identify the Kingst LA model. */
263 static int la2016_identify_read(struct sr_dev_inst *sdi,
264 struct sr_usb_dev_inst *usb, libusb_device *dev,
265 gboolean show_message)
269 ret = la2016_open_usb(usb, dev, show_message);
272 sr_err("Cannot communicate to MCU firmware.");
277 * Also complete the hardware configuration (FPGA bitstream)
278 * when MCU firmware communication became operational. Either
279 * failure is considered fatal when probing for the device.
281 ret = la2016_identify_device(sdi, show_message);
283 ret = la2016_init_hardware(sdi);
286 la2016_close_usb(usb);
291 /* Find given conn_id in another USB enum. Identify Kingst LA model. */
292 static int la2016_identify_enum(struct sr_dev_inst *sdi)
294 struct sr_dev_driver *di;
295 struct drv_context *drvc;
296 struct sr_context *ctx;
297 libusb_device **devlist, *dev;
298 struct libusb_device_descriptor des;
300 size_t device_count, dev_idx;
307 ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
314 for (dev_idx = 0; dev_idx < device_count; dev_idx++) {
315 dev = devlist[dev_idx];
316 libusb_get_device_descriptor(dev, &des);
317 if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
319 if (des.iProduct != LA2016_IPRODUCT_INDEX)
321 ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
324 if (strcmp(sdi->connection_id, conn_id) != 0)
326 id_ret = la2016_identify_read(sdi, sdi->conn, dev, FALSE);
329 libusb_free_device_list(devlist, 1);
334 /* Wait for a device to re-appear after firmware upload. */
335 static int la2016_identify_wait(struct sr_dev_inst *sdi)
337 struct dev_context *devc;
338 uint64_t reset_done, now, elapsed_ms;
343 sr_info("Waiting for device to reset after firmware upload.");
344 now = g_get_monotonic_time();
345 reset_done = devc->fw_uploaded + RENUM_GONE_DELAY_MS * 1000;
346 if (now < reset_done)
347 g_usleep(reset_done - now);
349 now = g_get_monotonic_time();
350 elapsed_ms = (now - devc->fw_uploaded) / 1000;
351 sr_spew("Waited %" PRIu64 "ms.", elapsed_ms);
352 ret = la2016_identify_enum(sdi);
354 devc->fw_uploaded = 0;
357 g_usleep(RENUM_POLL_INTERVAL_MS * 1000);
358 } while (elapsed_ms < RENUM_CHECK_PERIOD_MS);
360 sr_err("Device failed to re-enumerate.");
363 sr_info("Device came back after %" PRIi64 "ms.", elapsed_ms);
369 * Open given conn_id from another USB enum. Used by dev_open(). Similar
370 * to, and should be kept in sync with la2016_identify_enum().
372 static int la2016_open_enum(struct sr_dev_inst *sdi)
374 struct sr_dev_driver *di;
375 struct drv_context *drvc;
376 struct sr_context *ctx;
377 libusb_device **devlist, *dev;
378 struct libusb_device_descriptor des;
380 size_t device_count, dev_idx;
387 ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
393 open_ret = SR_ERR_IO;
394 for (dev_idx = 0; dev_idx < device_count; dev_idx++) {
395 dev = devlist[dev_idx];
396 libusb_get_device_descriptor(dev, &des);
397 if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
399 if (des.iProduct != LA2016_IPRODUCT_INDEX)
401 ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
404 if (strcmp(sdi->connection_id, conn_id) != 0)
406 open_ret = la2016_open_usb(sdi->conn, dev, TRUE);
409 libusb_free_device_list(devlist, 1);
414 static GSList *scan(struct sr_dev_driver *di, GSList *options)
416 struct drv_context *drvc;
417 struct sr_context *ctx;
418 struct dev_context *devc;
419 struct sr_dev_inst *sdi;
420 struct sr_usb_dev_inst *usb;
421 struct sr_config *src;
423 GSList *devices, *found_devices, *renum_devices;
424 GSList *conn_devices;
425 struct libusb_device_descriptor des;
426 libusb_device **devlist, *dev;
427 size_t dev_count, dev_idx, ch_idx;
433 size_t ch_off, ch_max;
434 struct sr_channel *ch;
435 struct sr_channel_group *cg;
442 for (l = options; l; l = l->next) {
446 conn = g_variant_get_string(src->data, NULL);
451 conn_devices = sr_usb_find(ctx->libusb_ctx, conn);
452 if (conn && !conn_devices) {
453 sr_err("Cannot find the specified connection '%s'.", conn);
458 * Find all LA2016 devices, optionally upload firmware to them.
459 * Defer completion of sdi/devc creation until all (selected)
460 * devices were found in a usable state, and their models got
461 * identified which affect their feature set. It appears that
462 * we cannot communicate to the device within the same USB enum
463 * cycle, needs another USB enumeration after firmware upload.
466 found_devices = NULL;
467 renum_devices = NULL;
468 ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
470 sr_err("Cannot get device list: %s.", libusb_error_name(ret));
474 for (dev_idx = 0; dev_idx < dev_count; dev_idx++) {
475 dev = devlist[dev_idx];
476 bus = libusb_get_bus_number(dev);
477 addr = libusb_get_device_address(dev);
479 /* Filter by connection when externally specified. */
480 for (l = conn_devices; l; l = l->next) {
482 if (usb->bus == bus && usb->address == addr)
485 if (conn_devices && !l) {
486 sr_spew("Bus %hhu, addr %hhu do not match specified filter.",
491 /* Check USB VID:PID. Get the connection string. */
492 libusb_get_device_descriptor(dev, &des);
493 if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
496 ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
499 sr_dbg("USB enum found %04x:%04x at path %s, %d.%d.",
500 des.idVendor, des.idProduct, conn_id, bus, addr);
501 usb = sr_usb_dev_inst_new(bus, addr, NULL);
503 sdi = g_malloc0(sizeof(*sdi));
505 sdi->status = SR_ST_INITIALIZING;
506 sdi->inst_type = SR_INST_USB;
507 sdi->connection_id = g_strdup(conn_id);
510 devc = g_malloc0(sizeof(*devc));
514 * Load MCU firmware if it is currently missing. Which
515 * makes the device disappear and renumerate in USB.
516 * We need to come back another time to communicate to
519 devc->fw_uploaded = 0;
520 if (des.iProduct != LA2016_IPRODUCT_INDEX) {
521 sr_info("Uploading MCU firmware to '%s'.", conn_id);
522 ret = la2016_upload_firmware(sdi, ctx, dev, pid);
524 sr_err("MCU firmware upload failed.");
525 kingst_la2016_free_sdi(sdi);
528 devc->fw_uploaded = g_get_monotonic_time();
530 renum_devices = g_slist_append(renum_devices, sdi);
535 * Communicate to the MCU firmware to access EEPROM data
536 * which lets us identify the device type. Then stop, to
537 * share remaining sdi/devc creation with those devices
538 * which had their MCU firmware uploaded above and which
539 * get revisited later.
541 ret = la2016_identify_read(sdi, usb, dev, TRUE);
542 if (ret != SR_OK || !devc->model) {
543 sr_err("Unknown or unsupported device type.");
544 kingst_la2016_free_sdi(sdi);
547 found_devices = g_slist_append(found_devices, sdi);
549 libusb_free_device_list(devlist, 1);
550 g_slist_free_full(conn_devices, sr_usb_dev_inst_free_cb);
553 * Wait for devices to re-appear after firmware upload. Append
554 * the yet unidentified device to the list of found devices, or
555 * release the previously allocated sdi/devc.
557 for (l = renum_devices; l; l = l->next) {
560 ret = la2016_identify_wait(sdi);
561 if (ret != SR_OK || !devc->model) {
562 sr_dbg("Skipping unusable '%s'.", sdi->connection_id);
563 kingst_la2016_free_sdi(sdi);
566 found_devices = g_slist_append(found_devices, sdi);
568 g_slist_free(renum_devices);
571 * All found devices got identified, their type is known here.
572 * Complete the sdi/devc creation. Assign default settings
573 * because the vendor firmware would not let us read back the
574 * previously written configuration.
576 for (l = found_devices; l; l = l->next) {
580 sdi->vendor = g_strdup("Kingst");
581 sdi->model = g_strdup(devc->model->name);
584 /* Create the "Logic" channel group. */
585 ch_max = ARRAY_SIZE(channel_names_logic);
586 if (ch_max > devc->model->channel_count)
587 ch_max = devc->model->channel_count;
588 cg = sr_channel_group_new(sdi, "Logic", NULL);
590 for (ch_idx = 0; ch_idx < ch_max; ch_idx++) {
591 ch = sr_channel_new(sdi, ch_off,
592 SR_CHANNEL_LOGIC, TRUE,
593 channel_names_logic[ch_idx]);
595 cg->channels = g_slist_append(cg->channels, ch);
598 /* Create the "PWMx" channel groups. */
599 ch_max = ARRAY_SIZE(channel_names_pwm);
600 for (ch_idx = 0; ch_idx < ch_max; ch_idx++) {
602 name = channel_names_pwm[ch_idx];
603 cg = sr_channel_group_new(sdi, name, NULL);
606 ch = sr_channel_new(sdi, ch_off,
607 SR_CHANNEL_ANALOG, FALSE, name);
609 cg->channels = g_slist_append(cg->channels, ch);
613 * Ideally we'd get the previous configuration from the
614 * hardware, but this device is write-only. So we have
615 * to assign a fixed set of initial configuration values.
617 sr_sw_limits_init(&devc->sw_limits);
618 devc->sw_limits.limit_samples = 0;
619 devc->capture_ratio = 50;
620 devc->samplerate = devc->model->samplerate;
621 devc->threshold_voltage_idx = LOGIC_THRESHOLD_IDX_DFLT;
622 if (ARRAY_SIZE(devc->pwm_setting) >= 1) {
623 devc->pwm_setting[0].enabled = FALSE;
624 devc->pwm_setting[0].freq = SR_KHZ(1);
625 devc->pwm_setting[0].duty = 50;
627 if (ARRAY_SIZE(devc->pwm_setting) >= 2) {
628 devc->pwm_setting[1].enabled = FALSE;
629 devc->pwm_setting[1].freq = SR_KHZ(100);
630 devc->pwm_setting[1].duty = 50;
633 sdi->status = SR_ST_INACTIVE;
634 devices = g_slist_append(devices, sdi);
636 g_slist_free(found_devices);
638 return std_scan_complete(di, devices);
641 static int dev_open(struct sr_dev_inst *sdi)
643 struct dev_context *devc;
649 ret = la2016_open_enum(sdi);
651 sr_err("Cannot open device.");
655 /* Send most recent PWM configuration to the device. */
656 for (ch = 0; ch < ARRAY_SIZE(devc->pwm_setting); ch++) {
657 ret = la2016_write_pwm_config(sdi, ch);
665 static int dev_close(struct sr_dev_inst *sdi)
667 struct sr_usb_dev_inst *usb;
674 if (WITH_DEINIT_IN_CLOSE)
675 la2016_deinit_hardware(sdi);
677 sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
678 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
679 la2016_close_usb(sdi->conn);
684 /* Config API helper. Get type and index of a channel group. */
685 static int get_cg_index(const struct sr_dev_inst *sdi,
686 const struct sr_channel_group *cg,
687 int *type, size_t *logic, size_t *analog)
689 struct dev_context *devc;
693 /* Preset return values. */
701 /* Start categorizing the received cg. */
707 l = sdi->channel_groups;
709 /* First sdi->channelgroups item is "Logic". */
714 *type = SR_CHANNEL_LOGIC;
721 /* Next sdi->channelgroups items are "PWMx". */
723 while (l && l->data != cg) {
727 if (l && idx < ARRAY_SIZE(devc->pwm_setting)) {
729 *type = SR_CHANNEL_ANALOG;
738 static int config_get(uint32_t key, GVariant **data,
739 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
741 struct dev_context *devc;
743 size_t logic_idx, analog_idx;
744 struct pwm_setting *pwm;
745 struct sr_usb_dev_inst *usb;
746 double voltage, rounded;
755 /* Check for types (and index) of channel groups. */
756 ret = get_cg_index(sdi, cg, &cg_type, &logic_idx, &analog_idx);
757 if (cg && ret != SR_OK)
760 /* Handle requests for the "Logic" channel group. */
761 if (cg && cg_type == SR_CHANNEL_LOGIC) {
763 #if !WITH_THRESHOLD_DEVCFG
764 case SR_CONF_VOLTAGE_THRESHOLD:
765 voltage = threshold_voltage(sdi, NULL);
766 *data = std_gvar_tuple_double(voltage, voltage);
768 #endif /* WITH_THRESHOLD_DEVCFG */
775 /* Handle requests for the "PWMx" channel groups. */
776 if (cg && cg_type == SR_CHANNEL_ANALOG) {
777 pwm = &devc->pwm_setting[analog_idx];
779 case SR_CONF_ENABLED:
780 *data = g_variant_new_boolean(pwm->enabled);
782 case SR_CONF_OUTPUT_FREQUENCY:
783 *data = g_variant_new_double(pwm->freq);
785 case SR_CONF_DUTY_CYCLE:
786 *data = g_variant_new_double(pwm->duty);
797 *data = g_variant_new_printf("%d.%d", usb->bus, usb->address);
799 case SR_CONF_SAMPLERATE:
800 *data = g_variant_new_uint64(devc->samplerate);
802 case SR_CONF_LIMIT_SAMPLES:
803 case SR_CONF_LIMIT_MSEC:
804 return sr_sw_limits_config_get(&devc->sw_limits, key, data);
805 case SR_CONF_CAPTURE_RATIO:
806 *data = g_variant_new_uint64(devc->capture_ratio);
808 #if WITH_THRESHOLD_DEVCFG
809 case SR_CONF_VOLTAGE_THRESHOLD:
810 voltage = threshold_voltage(sdi, NULL);
811 *data = std_gvar_tuple_double(voltage, voltage);
813 #endif /* WITH_THRESHOLD_DEVCFG */
821 static int config_set(uint32_t key, GVariant *data,
822 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
824 struct dev_context *devc;
826 size_t logic_idx, analog_idx;
827 struct pwm_setting *pwm;
833 /* Check for types (and index) of channel groups. */
834 ret = get_cg_index(sdi, cg, &cg_type, &logic_idx, &analog_idx);
835 if (cg && ret != SR_OK)
838 /* Handle requests for the "Logic" channel group. */
839 if (cg && cg_type == SR_CHANNEL_LOGIC) {
841 #if !WITH_THRESHOLD_DEVCFG
842 case SR_CONF_LOGIC_THRESHOLD:
843 idx = std_double_tuple_idx(data,
844 ARRAY_AND_SIZE(threshold_ranges));
847 devc->threshold_voltage_idx = idx;
849 #endif /* WITH_THRESHOLD_DEVCFG */
856 /* Handle requests for the "PWMx" channel groups. */
857 if (cg && cg_type == SR_CHANNEL_ANALOG) {
858 pwm = &devc->pwm_setting[analog_idx];
860 case SR_CONF_ENABLED:
861 pwm->enabled = g_variant_get_boolean(data);
862 ret = la2016_write_pwm_config(sdi, analog_idx);
866 case SR_CONF_OUTPUT_FREQUENCY:
867 value_f = g_variant_get_double(data);
868 if (value_f <= 0.0 || value_f > MAX_PWM_FREQ)
871 ret = la2016_write_pwm_config(sdi, analog_idx);
875 case SR_CONF_DUTY_CYCLE:
876 value_f = g_variant_get_double(data);
877 if (value_f <= 0.0 || value_f > 100.0)
880 ret = la2016_write_pwm_config(sdi, analog_idx);
891 case SR_CONF_SAMPLERATE:
892 devc->samplerate = g_variant_get_uint64(data);
894 case SR_CONF_LIMIT_SAMPLES:
895 case SR_CONF_LIMIT_MSEC:
896 return sr_sw_limits_config_set(&devc->sw_limits, key, data);
897 case SR_CONF_CAPTURE_RATIO:
898 devc->capture_ratio = g_variant_get_uint64(data);
900 #if WITH_THRESHOLD_DEVCFG
901 case SR_CONF_VOLTAGE_THRESHOLD:
902 idx = std_double_tuple_idx(data,
903 ARRAY_AND_SIZE(threshold_ranges));
906 devc->threshold_voltage_idx = idx;
908 #endif /* WITH_THRESHOLD_DEVCFG */
916 static int config_list(uint32_t key, GVariant **data,
917 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
919 struct dev_context *devc;
921 size_t logic_idx, analog_idx;
923 devc = sdi ? sdi->priv : NULL;
925 /* Check for types (and index) of channel groups. */
926 ret = get_cg_index(sdi, cg, &cg_type, &logic_idx, &analog_idx);
927 if (cg && ret != SR_OK)
930 /* Handle requests for the "Logic" channel group. */
931 if (cg && cg_type == SR_CHANNEL_LOGIC) {
933 case SR_CONF_DEVICE_OPTIONS:
934 if (ARRAY_SIZE(devopts_cg_logic) == 0)
936 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
937 devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic),
938 sizeof(devopts_cg_logic[0]));
940 #if !WITH_THRESHOLD_DEVCFG
941 case SR_CONF_VOLTAGE_THRESHOLD:
942 *data = std_gvar_thresholds(ARRAY_AND_SIZE(threshold_ranges));
944 #endif /* WITH_THRESHOLD_DEVCFG */
951 /* Handle requests for the "PWMx" channel groups. */
952 if (cg && cg_type == SR_CHANNEL_ANALOG) {
954 case SR_CONF_DEVICE_OPTIONS:
955 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
956 devopts_cg_pwm, ARRAY_SIZE(devopts_cg_pwm),
957 sizeof(devopts_cg_pwm[0]));
966 case SR_CONF_SCAN_OPTIONS:
967 case SR_CONF_DEVICE_OPTIONS:
968 return STD_CONFIG_LIST(key, data, sdi, cg,
969 scanopts, drvopts, devopts);
970 case SR_CONF_SAMPLERATE:
973 if (devc->model->samplerate == SR_MHZ(500))
974 *data = std_gvar_samplerates(ARRAY_AND_SIZE(rates_500mhz));
975 else if (devc->model->samplerate == SR_MHZ(200))
976 *data = std_gvar_samplerates(ARRAY_AND_SIZE(rates_200mhz));
978 *data = std_gvar_samplerates(ARRAY_AND_SIZE(rates_100mhz));
980 case SR_CONF_LIMIT_SAMPLES:
981 *data = std_gvar_tuple_u64(0, LA2016_NUM_SAMPLES_MAX);
983 #if WITH_THRESHOLD_DEVCFG
984 case SR_CONF_VOLTAGE_THRESHOLD:
985 *data = std_gvar_thresholds(ARRAY_AND_SIZE(threshold_ranges));
987 #endif /* WITH_THRESHOLD_DEVCFG */
988 case SR_CONF_TRIGGER_MATCH:
989 *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
998 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
1000 struct sr_dev_driver *di;
1001 struct drv_context *drvc;
1002 struct sr_context *ctx;
1003 struct dev_context *devc;
1009 ctx = drvc->sr_ctx;;
1012 if (!devc->feed_queue) {
1013 devc->feed_queue = feed_queue_logic_alloc(sdi,
1014 LA2016_CONVBUFFER_SIZE, sizeof(uint16_t));
1015 if (!devc->feed_queue) {
1016 sr_err("Cannot allocate buffer for session feed.");
1017 return SR_ERR_MALLOC;
1021 sr_sw_limits_acquisition_start(&devc->sw_limits);
1023 voltage = threshold_voltage(sdi, NULL);
1024 ret = la2016_setup_acquisition(sdi, voltage);
1026 feed_queue_logic_free(devc->feed_queue);
1027 devc->feed_queue = NULL;
1031 ret = la2016_start_acquisition(sdi);
1033 la2016_abort_acquisition(sdi);
1034 feed_queue_logic_free(devc->feed_queue);
1035 devc->feed_queue = NULL;
1039 devc->completion_seen = FALSE;
1040 usb_source_add(sdi->session, ctx, 50,
1041 la2016_receive_data, (void *)sdi);
1043 std_session_send_df_header(sdi);
1048 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
1052 ret = la2016_abort_acquisition(sdi);
1057 static struct sr_dev_driver kingst_la2016_driver_info = {
1058 .name = "kingst-la2016",
1059 .longname = "Kingst LA2016",
1062 .cleanup = std_cleanup,
1064 .dev_list = std_dev_list,
1065 .dev_clear = std_dev_clear,
1066 .config_get = config_get,
1067 .config_set = config_set,
1068 .config_list = config_list,
1069 .dev_open = dev_open,
1070 .dev_close = dev_close,
1071 .dev_acquisition_start = dev_acquisition_start,
1072 .dev_acquisition_stop = dev_acquisition_stop,
1075 SR_REGISTER_DEV_DRIVER(kingst_la2016_driver_info);