2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
5 * Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com>
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/>.
22 * <em>Yokogawa DL/DLM series</em> oscilloscope driver
28 static const char *dlm_coupling_options[] = {
36 static const char *dlm_2ch_trigger_sources[] = {
44 /* TODO: Is BITx handled correctly or is Dx required? */
45 static const char *dlm_4ch_trigger_sources[] = {
63 /* Note: Values must correlate to the trigger_slopes values */
64 const char *dlm_trigger_slopes[3] = {
70 const uint64_t dlm_timebases[36][2] = {
113 const uint64_t dlm_vdivs[17][2] = {
135 static const char *scope_analog_channel_names[] = {
142 static const char *scope_digital_channel_names_8[] = {
153 static const char *scope_digital_channel_names_32[] = {
188 static const struct scope_config scope_models[] = {
190 .model_id = {"710105", "710115", "710125", NULL},
191 .model_name = {"DLM2022", "DLM2032", "DLM2052", NULL},
192 .analog_channels = 2,
193 .digital_channels = 0,
196 .analog_names = &scope_analog_channel_names,
197 .digital_names = &scope_digital_channel_names_8,
199 .coupling_options = &dlm_coupling_options,
200 .trigger_sources = &dlm_2ch_trigger_sources,
206 .model_id = {"710110", "710120", "710130", NULL},
207 .model_name = {"DLM2024", "DLM2034", "DLM2054", NULL},
208 .analog_channels = 4,
209 .digital_channels = 8,
212 .analog_names = &scope_analog_channel_names,
213 .digital_names = &scope_digital_channel_names_8,
215 .coupling_options = &dlm_coupling_options,
216 .trigger_sources = &dlm_4ch_trigger_sources,
222 .model_id = {"701307", "701308", "701310", "701311",
223 "701312", "701313", NULL},
224 .model_name = {"DL9040", "DL9040L", "DL9140", "DL9140L",
225 "DL9240", "DL9240L", NULL},
226 .analog_channels = 4,
227 .digital_channels = 0,
230 .analog_names = &scope_analog_channel_names,
231 .digital_names = NULL,
233 .coupling_options = &dlm_coupling_options,
234 .trigger_sources = &dlm_4ch_trigger_sources,
240 .model_id = {"701320", "701321", NULL},
241 .model_name = {"DL9505L", "DL9510L", NULL},
242 .analog_channels = 4,
243 .digital_channels = 16,
246 .analog_names = &scope_analog_channel_names,
247 .digital_names = &scope_digital_channel_names_32,
249 .coupling_options = &dlm_coupling_options,
250 .trigger_sources = &dlm_4ch_trigger_sources,
256 .model_id = {"701330", "701331", NULL},
257 .model_name = {"DL9705L", "DL9710L", NULL},
258 .analog_channels = 4,
259 .digital_channels = 32,
262 .analog_names = &scope_analog_channel_names,
263 .digital_names = &scope_digital_channel_names_32,
265 .coupling_options = &dlm_coupling_options,
266 .trigger_sources = &dlm_4ch_trigger_sources,
274 * Prints out the state of the device as we currently know it.
276 * @param config This is the scope configuration.
277 * @param state The current scope state to print.
279 static void scope_state_dump(const struct scope_config *config,
280 struct scope_state *state)
285 for (i = 0; i < config->analog_channels; ++i) {
286 tmp = sr_voltage_string(dlm_vdivs[state->analog_states[i].vdiv][0],
287 dlm_vdivs[state->analog_states[i].vdiv][1]);
288 sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)",
289 i + 1, state->analog_states[i].state ? "On" : "Off",
290 (*config->coupling_options)[state->analog_states[i].coupling],
291 tmp, state->analog_states[i].vertical_offset);
294 for (i = 0; i < config->digital_channels; ++i) {
295 sr_info("State of digital channel %d -> %s", i,
296 state->digital_states[i] ? "On" : "Off");
299 for (i = 0; i < config->pods; ++i) {
300 sr_info("State of digital POD %d -> %s", i,
301 state->pod_states[i] ? "On" : "Off");
304 tmp = sr_period_string(dlm_timebases[state->timebase][0] *
305 dlm_timebases[state->timebase][1]);
306 sr_info("Current timebase: %s", tmp);
309 tmp = sr_samplerate_string(state->sample_rate);
310 sr_info("Current samplerate: %s", tmp);
313 sr_info("Current samples per acquisition (i.e. frame): %d",
314 state->samples_per_frame);
316 sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)",
317 (*config->trigger_sources)[state->trigger_source],
318 dlm_trigger_slopes[state->trigger_slope],
319 state->horiz_triggerpos);
323 * Searches through an array of strings and returns the index to the
324 * array where a given string is located.
326 * @param value The string to search for.
327 * @param array The array of strings.
328 * @param result The index at which value is located in array. -1 on error.
330 * @return SR_ERR when value couldn't be found, SR_OK otherwise.
332 static int array_option_get(char *value, const char *(*array)[],
339 for (i = 0; (*array)[i]; ++i)
340 if (!g_strcmp0(value, (*array)[i])) {
352 * This function takes a value of the form "2.000E-03", converts it to a
353 * significand / factor pair and returns the index of an array where
354 * a matching pair was found.
356 * It's a bit convoluted because of floating-point issues. The value "10.00E-09"
357 * is parsed by g_ascii_strtod() as 0.000000009999999939, for example.
358 * Therefore it's easier to break the number up into two strings and handle
361 * @param value The string to be parsed.
362 * @param array The array of s/f pairs.
363 * @param array_len The number of pairs in the array.
364 * @param result The index at which a matching pair was found.
366 * @return SR_ERR on any parsing error, SR_OK otherwise.
368 static int array_float_get(gchar *value, const uint64_t array[][2],
369 int array_len, int *result)
375 gchar ss[10], es[10];
377 memset(ss, 0, sizeof(ss));
378 memset(es, 0, sizeof(es));
380 strncpy(ss, value, 5);
381 strncpy(es, &(value[6]), 3);
383 if (sr_atof_ascii(ss, &s) != SR_OK)
385 if (sr_atoi(es, &i) != SR_OK)
388 /* Transform e.g. 10^-03 to 1000 as the array stores the inverse. */
391 /* Adjust the significand/factor pair to make sure
392 * that f is a multiple of 1000.
394 while ((int)fmod(log10(f), 3) > 0) { s *= 10; f *= 10; }
396 /* Truncate s to circumvent rounding errors. */
397 s_int = (unsigned int)s;
399 for (i = 0; i < array_len; i++) {
400 if ( (s_int == array[i][0]) && (f == array[i][1]) ) {
410 * Obtains information about all analog channels from the oscilloscope.
411 * The internal state information is updated accordingly.
413 * @param sdi The device instance.
414 * @param config The device's device configuration.
415 * @param state The device's state information.
417 * @return SR_ERR on error, SR_OK otherwise.
419 static int analog_channel_state_get(const struct sr_dev_inst *sdi,
420 const struct scope_config *config,
421 struct scope_state *state)
423 struct sr_scpi_dev_inst *scpi;
426 struct sr_channel *ch;
431 for (i = 0; i < config->analog_channels; ++i) {
433 if (dlm_analog_chan_state_get(scpi, i + 1,
434 &state->analog_states[i].state) != SR_OK)
437 for (l = sdi->channels; l; l = l->next) {
439 if (ch->index == i) {
440 ch->enabled = state->analog_states[i].state;
445 if (dlm_analog_chan_vdiv_get(scpi, i + 1, &response) != SR_OK)
448 if (array_float_get(response, dlm_vdivs, ARRAY_SIZE(dlm_vdivs),
455 state->analog_states[i].vdiv = j;
457 if (dlm_analog_chan_voffs_get(scpi, i + 1,
458 &state->analog_states[i].vertical_offset) != SR_OK)
461 if (dlm_analog_chan_wrange_get(scpi, i + 1,
462 &state->analog_states[i].waveform_range) != SR_OK)
465 if (dlm_analog_chan_woffs_get(scpi, i + 1,
466 &state->analog_states[i].waveform_offset) != SR_OK)
469 if (dlm_analog_chan_coupl_get(scpi, i + 1, &response) != SR_OK) {
474 if (array_option_get(response, config->coupling_options,
475 &state->analog_states[i].coupling) != SR_OK) {
486 * Obtains information about all digital channels from the oscilloscope.
487 * The internal state information is updated accordingly.
489 * @param sdi The device instance.
490 * @param config The device's device configuration.
491 * @param state The device's state information.
493 * @return SR_ERR on error, SR_OK otherwise.
495 static int digital_channel_state_get(const struct sr_dev_inst *sdi,
496 const struct scope_config *config,
497 struct scope_state *state)
499 struct sr_scpi_dev_inst *scpi;
502 struct sr_channel *ch;
506 if (!config->digital_channels)
508 sr_warn("Tried obtaining digital channel states on a " \
509 "model without digital inputs.");
513 for (i = 0; i < config->digital_channels; ++i) {
514 if (dlm_digital_chan_state_get(scpi, i + 1,
515 &state->digital_states[i]) != SR_OK) {
519 for (l = sdi->channels; l; l = l->next) {
521 if (ch->index == i + DLM_DIG_CHAN_INDEX_OFFS) {
522 ch->enabled = state->digital_states[i];
530 sr_warn("Tried obtaining pod states on a model without pods.");
534 for (i = 0; i < config->pods; ++i) {
535 if (dlm_digital_pod_state_get(scpi, i + 'A',
536 &state->pod_states[i]) != SR_OK)
546 SR_PRIV int dlm_channel_state_set(const struct sr_dev_inst *sdi,
547 const int ch_index, gboolean ch_state)
550 struct sr_channel *ch;
551 struct dev_context *devc = NULL;
552 struct scope_state *state;
553 const struct scope_config *model = NULL;
554 struct sr_scpi_dev_inst *scpi;
556 gboolean *pod_enabled;
563 state = devc->model_state;
564 model = devc->model_config;
567 pod_enabled = g_malloc0(sizeof(gboolean) * model->pods);
569 for (l = sdi->channels; l; l = l->next) {
573 case SR_CHANNEL_ANALOG:
574 if (ch->index == ch_index) {
575 if (dlm_analog_chan_state_set(scpi, ch->index + 1, ch_state) != SR_OK) {
580 ch->enabled = ch_state;
581 state->analog_states[ch->index].state = ch_state;
586 case SR_CHANNEL_LOGIC:
587 i = ch->index - DLM_DIG_CHAN_INDEX_OFFS;
589 if (ch->index == ch_index) {
590 if (dlm_digital_chan_state_set(scpi, i + 1, ch_state) != SR_OK) {
595 ch->enabled = ch_state;
596 state->digital_states[i] = ch_state;
599 /* The corresponding pod has to be enabled also. */
600 pod_enabled[i / 8] |= ch->enabled;
602 /* Also check all other channels. Maybe we can disable a pod. */
603 pod_enabled[i / 8] |= ch->enabled;
610 for (i = 0; i < model->pods; ++i) {
611 if (state->pod_states[i] == pod_enabled[i])
614 if (dlm_digital_pod_state_set(scpi, i + 1, pod_enabled[i]) != SR_OK) {
619 state->pod_states[i] = pod_enabled[i];
624 if ((result == SR_OK) && !chan_found)
631 * Obtains information about the sample rate from the oscilloscope.
632 * The internal state information is updated accordingly.
634 * @param sdi The device instance.
636 * @return SR_ERR on error, SR_OK otherwise.
638 SR_PRIV int dlm_sample_rate_query(const struct sr_dev_inst *sdi)
640 struct dev_context *devc;
641 struct scope_state *state;
645 state = devc->model_state;
647 /* No need to find an active channel to query the sample rate:
648 * querying any channel will do, so we use channel 1 all the time.
650 if (dlm_analog_chan_srate_get(sdi->conn, 1, &tmp_float) != SR_OK)
653 state->sample_rate = tmp_float;
659 * Obtains information about the current device state from the oscilloscope,
660 * including all analog and digital channel configurations.
661 * The internal state information is updated accordingly.
663 * @param sdi The device instance.
665 * @return SR_ERR on error, SR_OK otherwise.
667 SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi)
669 struct dev_context *devc;
670 struct scope_state *state;
671 const struct scope_config *config;
677 config = devc->model_config;
678 state = devc->model_state;
680 if (analog_channel_state_get(sdi, config, state) != SR_OK)
683 if (digital_channel_state_get(sdi, config, state) != SR_OK)
686 if (dlm_timebase_get(sdi->conn, &response) != SR_OK)
689 if (array_float_get(response, dlm_timebases,
690 ARRAY_SIZE(dlm_timebases), &i) != SR_OK) {
698 if (dlm_horiz_trigger_pos_get(sdi->conn, &tmp_float) != SR_OK)
701 /* TODO: Check if the calculation makes sense for the DLM. */
702 state->horiz_triggerpos = tmp_float /
703 (((double)dlm_timebases[state->timebase][0] /
704 dlm_timebases[state->timebase][1]) * config->num_xdivs);
705 state->horiz_triggerpos -= 0.5;
706 state->horiz_triggerpos *= -1;
708 if (dlm_trigger_source_get(sdi->conn, &response) != SR_OK) {
713 if (array_option_get(response, config->trigger_sources,
714 &state->trigger_source) != SR_OK) {
721 if (dlm_trigger_slope_get(sdi->conn, &i) != SR_OK)
724 state->trigger_slope = i;
726 if (dlm_acq_length_get(sdi->conn, &state->samples_per_frame) != SR_OK) {
727 sr_err("Failed to query acquisition length.");
731 dlm_sample_rate_query(sdi);
733 scope_state_dump(config, state);
739 * Creates a new device state structure.
741 * @param config The device configuration to use.
743 * @return The newly allocated scope_state struct.
745 static struct scope_state *dlm_scope_state_new(const struct scope_config *config)
747 struct scope_state *state;
749 state = g_malloc0(sizeof(struct scope_state));
751 state->analog_states = g_malloc0(config->analog_channels *
752 sizeof(struct analog_channel_state));
754 state->digital_states = g_malloc0(config->digital_channels *
757 state->pod_states = g_malloc0(config->pods * sizeof(gboolean));
763 * Frees the memory that was allocated by a call to dlm_scope_state_new().
765 * @param state The device state structure whose memory is to be freed.
767 SR_PRIV void dlm_scope_state_destroy(struct scope_state *state)
769 g_free(state->analog_states);
770 g_free(state->digital_states);
771 g_free(state->pod_states);
775 SR_PRIV int dlm_model_get(char *model_id, char **model_name, int *model_index)
782 for (i = 0; i < ARRAY_SIZE(scope_models); i++) {
783 for (j = 0; scope_models[i].model_id[j]; j++) {
784 if (!strcmp(model_id, scope_models[i].model_id[j])) {
786 *model_name = (char *)scope_models[i].model_name[j];
790 if (*model_index != -1)
794 if (*model_index == -1) {
795 sr_err("Found unsupported DLM device with model identifier %s.",
804 * Attempts to initialize a DL/DLM device and prepares internal structures
805 * if a suitable device was found.
807 * @param sdi The device instance.
809 SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index)
813 struct sr_channel *ch;
814 struct dev_context *devc;
818 devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) *
819 scope_models[model_index].analog_channels);
821 devc->digital_groups = g_malloc0(sizeof(struct sr_channel_group*) *
822 scope_models[model_index].pods);
824 /* Add analog channels, each in its own group. */
825 for (i = 0; i < scope_models[model_index].analog_channels; i++) {
826 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
827 (*scope_models[model_index].analog_names)[i]);
829 devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
831 devc->analog_groups[i]->name = g_strdup(
832 (char *)(*scope_models[model_index].analog_names)[i]);
833 devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
835 sdi->channel_groups = g_slist_append(sdi->channel_groups,
836 devc->analog_groups[i]);
839 /* Add digital channel groups. */
840 for (i = 0; i < scope_models[model_index].pods; ++i) {
841 g_snprintf(tmp, sizeof(tmp), "POD%d", i);
843 devc->digital_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
844 if (!devc->digital_groups[i])
845 return SR_ERR_MALLOC;
847 devc->digital_groups[i]->name = g_strdup(tmp);
848 sdi->channel_groups = g_slist_append(sdi->channel_groups,
849 devc->digital_groups[i]);
852 /* Add digital channels. */
853 for (i = 0; i < scope_models[model_index].digital_channels; i++) {
854 ch = sr_channel_new(sdi, DLM_DIG_CHAN_INDEX_OFFS + i,
855 SR_CHANNEL_LOGIC, TRUE,
856 (*scope_models[model_index].digital_names)[i]);
858 devc->digital_groups[i / 8]->channels = g_slist_append(
859 devc->digital_groups[i / 8]->channels, ch);
861 devc->model_config = &scope_models[model_index];
862 devc->frame_limit = 0;
864 if (!(devc->model_state = dlm_scope_state_new(devc->model_config)))
865 return SR_ERR_MALLOC;
867 /* Disable non-standard response behavior. */
868 if (dlm_response_headers_set(sdi->conn, FALSE) != SR_OK)
874 SR_PRIV int dlm_channel_data_request(const struct sr_dev_inst *sdi)
876 struct dev_context *devc;
877 struct sr_channel *ch;
881 ch = devc->current_channel->data;
884 case SR_CHANNEL_ANALOG:
885 result = dlm_analog_data_get(sdi->conn, ch->index + 1);
887 case SR_CHANNEL_LOGIC:
888 result = dlm_digital_data_get(sdi->conn);
891 sr_err("Invalid channel type encountered (%d).",
897 devc->data_pending = TRUE;
899 devc->data_pending = FALSE;
905 * Reads and removes the block data header from a given data input.
906 * Format is #ndddd... with n being the number of decimal digits d.
907 * The string dddd... contains the decimal-encoded length of the data.
908 * Example: #9000000013 would yield a length of 13 bytes.
910 * @param data The input data.
911 * @param len The determined input data length.
913 static int dlm_block_data_header_process(GArray *data, int *len)
918 if (g_array_index(data, gchar, 0) != '#')
921 n = (uint8_t)(g_array_index(data, gchar, 1) - '0');
923 for (i = 0; i < n; i++)
924 s[i] = g_array_index(data, gchar, 2 + i);
927 if (sr_atoi(s, len) != SR_OK)
930 g_array_remove_range(data, 0, 2 + n);
936 * Turns raw sample data into voltages and sends them off to the session bus.
938 * @param data The raw sample data.
939 * @ch_state Pointer to the state of the channel whose data we're processing.
940 * @sdi The device instance.
942 * @return SR_ERR when data is trucated, SR_OK otherwise.
944 static int dlm_analog_samples_send(GArray *data,
945 struct analog_channel_state *ch_state,
946 struct sr_dev_inst *sdi)
949 float voltage, range, offset;
951 struct dev_context *devc;
952 struct scope_state *model_state;
953 struct sr_channel *ch;
954 struct sr_datafeed_analog analog;
955 struct sr_datafeed_packet packet;
958 model_state = devc->model_state;
959 samples = model_state->samples_per_frame;
960 ch = devc->current_channel->data;
962 if (data->len < samples * sizeof(uint8_t)) {
963 sr_err("Truncated waveform data packet received.");
967 range = ch_state->waveform_range;
968 offset = ch_state->waveform_offset;
970 /* Convert byte sample to voltage according to
971 * page 269 of the Communication Interface User's Manual.
973 float_data = g_array_new(FALSE, FALSE, sizeof(float));
974 for (i = 0; i < samples; i++) {
975 voltage = (float)g_array_index(data, int8_t, i);
976 voltage = (range * voltage /
977 DLM_DIVISION_FOR_BYTE_FORMAT) + offset;
978 g_array_append_val(float_data, voltage);
981 analog.channels = g_slist_append(NULL, ch);
982 analog.num_samples = float_data->len;
983 analog.data = (float*)float_data->data;
984 analog.mq = SR_MQ_VOLTAGE;
985 analog.unit = SR_UNIT_VOLT;
987 packet.type = SR_DF_ANALOG;
988 packet.payload = &analog;
989 sr_session_send(sdi, &packet);
990 g_slist_free(analog.channels);
992 g_array_free(float_data, TRUE);
993 g_array_remove_range(data, 0, samples * sizeof(uint8_t));
999 * Sends logic sample data off to the session bus.
1001 * @param data The raw sample data.
1002 * @ch_state Pointer to the state of the channel whose data we're processing.
1003 * @sdi The device instance.
1005 * @return SR_ERR when data is trucated, SR_OK otherwise.
1007 static int dlm_digital_samples_send(GArray *data,
1008 struct sr_dev_inst *sdi)
1010 struct dev_context *devc;
1011 struct scope_state *model_state;
1013 struct sr_datafeed_logic logic;
1014 struct sr_datafeed_packet packet;
1017 model_state = devc->model_state;
1018 samples = model_state->samples_per_frame;
1020 if (data->len < samples * sizeof(uint8_t)) {
1021 sr_err("Truncated waveform data packet received.");
1025 logic.length = samples;
1027 logic.data = data->data;
1028 packet.type = SR_DF_LOGIC;
1029 packet.payload = &logic;
1030 sr_session_send(sdi, &packet);
1032 g_array_remove_range(data, 0, samples * sizeof(uint8_t));
1038 * Attempts to query sample data from the oscilloscope in order to send it
1039 * to the session bus for further processing.
1041 * @param fd The file descriptor used as the event source.
1042 * @param revents The received events.
1043 * @param cb_data Callback data, in this case our device instance.
1045 * @return TRUE in case of success or a recoverable error,
1046 * FALSE when a fatal error was encountered.
1048 SR_PRIV int dlm_data_receive(int fd, int revents, void *cb_data)
1050 struct sr_dev_inst *sdi;
1051 struct scope_state *model_state;
1052 struct dev_context *devc;
1053 struct sr_channel *ch;
1054 struct sr_datafeed_packet packet;
1055 int chunk_len, num_bytes;
1056 static GArray *data = NULL;
1061 if (!(sdi = cb_data))
1064 if (!(devc = sdi->priv))
1067 if (!(model_state = (struct scope_state*)devc->model_state))
1070 /* Are we waiting for a response from the device? */
1071 if (!devc->data_pending)
1074 /* Check if a new query response is coming our way. */
1076 if (sr_scpi_read_begin(sdi->conn) == SR_OK)
1077 /* The 16 here accounts for the header and EOL. */
1078 data = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t),
1079 16 + model_state->samples_per_frame);
1084 /* Store incoming data. */
1085 chunk_len = sr_scpi_read_data(sdi->conn, devc->receive_buffer,
1086 RECEIVE_BUFFER_SIZE);
1087 if (chunk_len < 0) {
1088 sr_err("Error while reading data: %d", chunk_len);
1091 g_array_append_vals(data, devc->receive_buffer, chunk_len);
1093 /* Read the entire query response before processing. */
1094 if (!sr_scpi_read_complete(sdi->conn))
1097 /* We finished reading and are no longer waiting for data. */
1098 devc->data_pending = FALSE;
1100 /* Signal the beginning of a new frame if this is the first channel. */
1101 if (devc->current_channel == devc->enabled_channels) {
1102 packet.type = SR_DF_FRAME_BEGIN;
1103 sr_session_send(sdi, &packet);
1106 if (dlm_block_data_header_process(data, &num_bytes) != SR_OK) {
1107 sr_err("Encountered malformed block data header.");
1111 if (num_bytes == 0) {
1112 sr_warn("Zero-length waveform data packet received. " \
1113 "Live mode not supported yet, stopping " \
1114 "acquisition and retrying.");
1115 /* Don't care about return value here. */
1116 dlm_acquisition_stop(sdi->conn);
1117 g_array_free(data, TRUE);
1118 dlm_channel_data_request(sdi);
1122 ch = devc->current_channel->data;
1124 case SR_CHANNEL_ANALOG:
1125 if (dlm_analog_samples_send(data,
1126 &model_state->analog_states[ch->index],
1130 case SR_CHANNEL_LOGIC:
1131 if (dlm_digital_samples_send(data, sdi) != SR_OK)
1135 sr_err("Invalid channel type encountered.");
1139 g_array_free(data, TRUE);
1142 /* Signal the end of this frame if this was the last enabled channel
1143 * and set the next enabled channel. Then, request its data.
1145 if (!devc->current_channel->next) {
1146 packet.type = SR_DF_FRAME_END;
1147 sr_session_send(sdi, &packet);
1148 devc->current_channel = devc->enabled_channels;
1150 /* As of now we only support importing the current acquisition
1151 * data so we're going to stop at this point.
1153 sdi->driver->dev_acquisition_stop(sdi, cb_data);
1156 devc->current_channel = devc->current_channel->next;
1158 if (dlm_channel_data_request(sdi) != SR_OK) {
1159 sr_err("Failed to request acquisition data.");
1167 g_array_free(data, TRUE);