2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 poljar (Damir Jelić) <poljarinho@gmail.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 static const char *hameg_scpi_dialect[] = {
23 [SCPI_CMD_GET_DIG_DATA] = ":POD%d:DATA?",
24 [SCPI_CMD_GET_TIMEBASE] = ":TIM:SCAL?",
25 [SCPI_CMD_SET_TIMEBASE] = ":TIM:SCAL %s",
26 [SCPI_CMD_GET_COUPLING] = ":CHAN%d:COUP?",
27 [SCPI_CMD_SET_COUPLING] = ":CHAN%d:COUP %s",
28 [SCPI_CMD_GET_SAMPLE_RATE] = ":ACQ:SRAT?",
29 [SCPI_CMD_GET_SAMPLE_RATE_LIVE] = ":%s:DATA:POINTS?",
30 [SCPI_CMD_GET_ANALOG_DATA] = ":CHAN%d:DATA?",
31 [SCPI_CMD_GET_VERTICAL_DIV] = ":CHAN%d:SCAL?",
32 [SCPI_CMD_SET_VERTICAL_DIV] = ":CHAN%d:SCAL %s",
33 [SCPI_CMD_GET_DIG_POD_STATE] = ":POD%d:STAT?",
34 [SCPI_CMD_SET_DIG_POD_STATE] = ":POD%d:STAT %d",
35 [SCPI_CMD_GET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP?",
36 [SCPI_CMD_SET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP %s",
37 [SCPI_CMD_GET_TRIGGER_SOURCE] = ":TRIG:A:SOUR?",
38 [SCPI_CMD_SET_TRIGGER_SOURCE] = ":TRIG:A:SOUR %s",
39 [SCPI_CMD_GET_DIG_CHAN_STATE] = ":LOG%d:STAT?",
40 [SCPI_CMD_SET_DIG_CHAN_STATE] = ":LOG%d:STAT %d",
41 [SCPI_CMD_GET_VERTICAL_OFFSET] = ":CHAN%d:POS?",
42 [SCPI_CMD_GET_HORIZ_TRIGGERPOS] = ":TIM:POS?",
43 [SCPI_CMD_SET_HORIZ_TRIGGERPOS] = ":TIM:POS %E",
44 [SCPI_CMD_GET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT?",
45 [SCPI_CMD_SET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT %d",
48 static const int32_t hmo_hwcaps[] = {
50 SR_CONF_TRIGGER_SOURCE,
53 SR_CONF_TRIGGER_SLOPE,
54 SR_CONF_HORIZ_TRIGGERPOS,
59 static const int32_t hmo_analog_caps[] = {
65 static const char *hmo_coupling_options[] = {
74 static const char *scope_trigger_slopes[] = {
80 static const char *hmo_compact2_trigger_sources[] = {
96 static const char *hmo_compact4_trigger_sources[] = {
114 static const uint64_t hmo_timebases[][2] = {
153 static const uint64_t hmo_vdivs[][2] = {
171 static const char *scope_analog_probe_names[] = {
178 static const char *scope_digital_probe_names[] = {
197 static struct scope_config scope_models[] = {
199 .name = {"HMO722", "HMO1022", "HMO1522", "HMO2022", NULL},
200 .analog_channels = 2,
201 .digital_channels = 8,
204 .analog_names = &scope_analog_probe_names,
205 .digital_names = &scope_digital_probe_names,
207 .hw_caps = &hmo_hwcaps,
208 .num_hwcaps = ARRAY_SIZE(hmo_hwcaps),
210 .analog_hwcaps = &hmo_analog_caps,
211 .num_analog_hwcaps = ARRAY_SIZE(hmo_analog_caps),
213 .coupling_options = &hmo_coupling_options,
214 .trigger_sources = &hmo_compact2_trigger_sources,
215 .trigger_slopes = &scope_trigger_slopes,
217 .timebases = &hmo_timebases,
218 .num_timebases = ARRAY_SIZE(hmo_timebases),
221 .num_vdivs = ARRAY_SIZE(hmo_vdivs),
226 .scpi_dialect = &hameg_scpi_dialect,
229 .name = {"HMO724", "HMO1024", "HMO1524", "HMO2024", NULL},
230 .analog_channels = 4,
231 .digital_channels = 8,
234 .analog_names = &scope_analog_probe_names,
235 .digital_names = &scope_digital_probe_names,
237 .hw_caps = &hmo_hwcaps,
238 .num_hwcaps = ARRAY_SIZE(hmo_hwcaps),
240 .analog_hwcaps = &hmo_analog_caps,
241 .num_analog_hwcaps = ARRAY_SIZE(hmo_analog_caps),
243 .coupling_options = &hmo_coupling_options,
244 .trigger_sources = &hmo_compact4_trigger_sources,
245 .trigger_slopes = &scope_trigger_slopes,
247 .timebases = &hmo_timebases,
248 .num_timebases = ARRAY_SIZE(hmo_timebases),
251 .num_vdivs = ARRAY_SIZE(hmo_vdivs),
256 .scpi_dialect = &hameg_scpi_dialect,
260 static void scope_state_dump(struct scope_config *config,
261 struct scope_state *state)
266 for (i = 0; i < config->analog_channels; ++i) {
267 tmp = sr_voltage_string((*config->vdivs)[state->analog_channels[i].vdiv][0],
268 (*config->vdivs)[state->analog_channels[i].vdiv][1]);
269 sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)",
270 i + 1, state->analog_channels[i].state ? "On" : "Off",
271 (*config->coupling_options)[state->analog_channels[i].coupling],
272 tmp, state->analog_channels[i].vertical_offset);
275 for (i = 0; i < config->digital_channels; ++i) {
276 sr_info("State of digital channel %d -> %s", i,
277 state->digital_channels[i] ? "On" : "Off");
280 for (i = 0; i < config->digital_pods; ++i) {
281 sr_info("State of digital POD %d -> %s", i,
282 state->digital_pods[i] ? "On" : "Off");
285 tmp = sr_period_string((*config->timebases)[state->timebase][0] *
286 (*config->timebases)[state->timebase][1]);
287 sr_info("Current timebase: %s", tmp);
290 tmp = sr_samplerate_string(state->sample_rate);
291 sr_info("Current samplerate: %s", tmp);
294 sr_info("Current trigger: %s (source), %s (slope) %2.2e (offset)",
295 (*config->trigger_sources)[state->trigger_source],
296 (*config->trigger_slopes)[state->trigger_slope],
297 state->horiz_triggerpos);
300 static int scope_state_get_array_option(struct sr_scpi_dev_inst *scpi,
301 const char *command, const char *(*array)[], int *result)
306 if (sr_scpi_get_string(scpi, command, &tmp) != SR_OK) {
311 for (i = 0; (*array)[i]; ++i) {
312 if (!g_strcmp0(tmp, (*array)[i])) {
328 static int analog_channel_state_get(struct sr_scpi_dev_inst *scpi,
329 struct scope_config *config,
330 struct scope_state *state)
334 char command[MAX_COMMAND_SIZE];
336 for (i = 0; i < config->analog_channels; ++i) {
337 g_snprintf(command, sizeof(command),
338 (*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE],
341 if (sr_scpi_get_bool(scpi, command,
342 &state->analog_channels[i].state) != SR_OK)
345 g_snprintf(command, sizeof(command),
346 (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_DIV],
349 if (sr_scpi_get_float(scpi, command, &tmp_float) != SR_OK)
351 for (j = 0; j < config->num_vdivs; j++) {
352 if (tmp_float == ((float) (*config->vdivs)[j][0] /
353 (*config->vdivs)[j][1])) {
354 state->analog_channels[i].vdiv = j;
358 if (i == config->num_vdivs)
361 g_snprintf(command, sizeof(command),
362 (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET],
365 if (sr_scpi_get_float(scpi, command,
366 &state->analog_channels[i].vertical_offset) != SR_OK)
369 g_snprintf(command, sizeof(command),
370 (*config->scpi_dialect)[SCPI_CMD_GET_COUPLING],
373 if (scope_state_get_array_option(scpi, command, config->coupling_options,
374 &state->analog_channels[i].coupling) != SR_OK)
381 static int digital_channel_state_get(struct sr_scpi_dev_inst *scpi,
382 struct scope_config *config,
383 struct scope_state *state)
386 char command[MAX_COMMAND_SIZE];
388 for (i = 0; i < config->digital_channels; ++i) {
389 g_snprintf(command, sizeof(command),
390 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_CHAN_STATE],
393 if (sr_scpi_get_bool(scpi, command,
394 &state->digital_channels[i]) != SR_OK)
398 for (i = 0; i < config->digital_pods; ++i) {
399 g_snprintf(command, sizeof(command),
400 (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_STATE],
403 if (sr_scpi_get_bool(scpi, command,
404 &state->digital_pods[i]) != SR_OK)
411 SR_PRIV int hmo_update_sample_rate(const struct sr_dev_inst *sdi)
413 struct dev_context *devc;
414 struct scope_state *state;
415 struct scope_config *config;
420 gboolean channel_found;
421 char tmp_str[MAX_COMMAND_SIZE];
425 config = devc->model_config;
426 state = devc->model_state;
427 channel_found = FALSE;
429 for (i = 0; i < config->analog_channels; ++i) {
430 if (state->analog_channels[i].state) {
431 g_snprintf(chan_name, sizeof(chan_name), "CHAN%d", i + 1);
432 g_snprintf(tmp_str, sizeof(tmp_str),
433 (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE_LIVE],
435 channel_found = TRUE;
440 if (!channel_found) {
441 for (i = 0; i < config->digital_pods; i++) {
442 if (state->digital_pods[i]) {
443 g_snprintf(chan_name, sizeof(chan_name), "POD%d", i);
444 g_snprintf(tmp_str, sizeof(tmp_str),
445 (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE_LIVE],
447 channel_found = TRUE;
453 /* No channel is active, ask the instrument for the sample rate
454 * in single shot mode */
455 if (!channel_found) {
456 if (sr_scpi_get_float(sdi->conn,
457 (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE],
458 &tmp_float) != SR_OK)
461 state->sample_rate = tmp_float;
463 if (sr_scpi_get_int(sdi->conn, tmp_str, &tmp) != SR_OK)
465 state->sample_rate = tmp / (((float) (*config->timebases)[state->timebase][0] /
466 (*config->timebases)[state->timebase][1]) *
473 SR_PRIV int hmo_scope_state_get(struct sr_dev_inst *sdi)
475 struct dev_context *devc;
476 struct scope_state *state;
477 struct scope_config *config;
482 config = devc->model_config;
483 state = devc->model_state;
485 sr_info("Fetching scope state");
487 if (analog_channel_state_get(sdi->conn, config, state) != SR_OK)
490 if (digital_channel_state_get(sdi->conn, config, state) != SR_OK)
493 if (sr_scpi_get_float(sdi->conn,
494 (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE],
495 &tmp_float) != SR_OK)
498 for (i = 0; i < config->num_timebases; i++) {
499 if (tmp_float == ((float) (*config->timebases)[i][0] /
500 (*config->timebases)[i][1])) {
505 if (i == config->num_timebases)
508 if (sr_scpi_get_float(sdi->conn,
509 (*config->scpi_dialect)[SCPI_CMD_GET_HORIZ_TRIGGERPOS],
510 &state->horiz_triggerpos) != SR_OK)
513 if (scope_state_get_array_option(sdi->conn,
514 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SOURCE],
515 config->trigger_sources, &state->trigger_source) != SR_OK)
518 if (scope_state_get_array_option(sdi->conn,
519 (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SLOPE],
520 config->trigger_slopes, &state->trigger_slope) != SR_OK)
523 if (hmo_update_sample_rate(sdi) != SR_OK)
526 sr_info("Fetching finished.");
528 scope_state_dump(config, state);
533 static struct scope_state *scope_state_new(struct scope_config *config)
535 struct scope_state *state;
537 if (!(state = g_try_malloc0(sizeof(struct scope_state))))
540 if (!(state->analog_channels = g_try_malloc0_n(config->analog_channels,
541 sizeof(struct analog_channel_state))))
544 if (!(state->digital_channels = g_try_malloc0_n(
545 config->digital_channels, sizeof(gboolean))))
548 if (!(state->digital_pods = g_try_malloc0_n(config->digital_pods,
555 if (state->analog_channels)
556 g_free(state->analog_channels);
557 if (state->digital_channels)
558 g_free(state->digital_channels);
559 if (state->digital_pods)
560 g_free(state->digital_pods);
566 SR_PRIV void hmo_scope_state_free(struct scope_state *state)
568 g_free(state->analog_channels);
569 g_free(state->digital_channels);
570 g_free(state->digital_pods);
574 SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi)
579 struct sr_probe *probe;
580 struct dev_context *devc;
585 /* Find the exact model. */
586 for (i = 0; i < ARRAY_SIZE(scope_models); i++) {
587 for (j = 0; scope_models[i].name[j]; j++) {
588 if (!strcmp(sdi->model, scope_models[i].name[j])) {
593 if (model_index != -1)
597 if (model_index == -1) {
598 sr_dbg("Unsupported HMO device.");
602 if (!(devc->analog_groups = g_try_malloc0(sizeof(struct sr_probe_group) *
603 scope_models[model_index].analog_channels)))
604 return SR_ERR_MALLOC;
606 if (!(devc->digital_groups = g_try_malloc0(sizeof(struct sr_probe_group) *
607 scope_models[model_index].digital_pods)))
608 return SR_ERR_MALLOC;
610 /* Add analog channels. */
611 for (i = 0; i < scope_models[model_index].analog_channels; i++) {
612 if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE,
613 (*scope_models[model_index].analog_names)[i])))
614 return SR_ERR_MALLOC;
615 sdi->probes = g_slist_append(sdi->probes, probe);
617 devc->analog_groups[i].name =
618 (char *)(*scope_models[model_index].analog_names)[i];
619 devc->analog_groups[i].probes = g_slist_append(NULL, probe);
621 sdi->probe_groups = g_slist_append(sdi->probe_groups,
622 &devc->analog_groups[i]);
625 /* Add digital probe groups. */
626 for (i = 0; i < scope_models[model_index].digital_pods; ++i) {
627 g_snprintf(tmp, 25, "POD%d", i);
628 devc->digital_groups[i].name = g_strdup(tmp);
629 sdi->probe_groups = g_slist_append(sdi->probe_groups,
630 &devc->digital_groups[i < 8 ? 0 : 1]);
633 /* Add digital channels. */
634 for (i = 0; i < scope_models[model_index].digital_channels; i++) {
635 if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE,
636 (*scope_models[model_index].digital_names)[i])))
637 return SR_ERR_MALLOC;
638 sdi->probes = g_slist_append(sdi->probes, probe);
640 devc->digital_groups[i < 8 ? 0 : 1].probes = g_slist_append(
641 devc->digital_groups[i < 8 ? 0 : 1].probes, probe);
644 devc->model_config = &scope_models[model_index];
645 devc->frame_limit = 0;
647 if (!(devc->model_state = scope_state_new(devc->model_config)))
648 return SR_ERR_MALLOC;
653 SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
655 struct sr_probe *probe;
656 struct sr_dev_inst *sdi;
657 struct dev_context *devc;
658 struct sr_datafeed_packet packet;
660 struct sr_datafeed_analog analog;
661 struct sr_datafeed_logic logic;
665 if (!(sdi = cb_data))
668 if (!(devc = sdi->priv))
671 if (revents == G_IO_IN) {
672 probe = devc->current_probe->data;
674 switch (probe->type) {
675 case SR_PROBE_ANALOG:
676 if (sr_scpi_get_floatv(sdi->conn, NULL, &data) != SR_OK) {
678 g_array_free(data, TRUE);
683 packet.type = SR_DF_FRAME_BEGIN;
684 sr_session_send(sdi, &packet);
686 analog.probes = g_slist_append(NULL, probe);
687 analog.num_samples = data->len;
688 analog.data = (float *) data->data;
689 analog.mq = SR_MQ_VOLTAGE;
690 analog.unit = SR_UNIT_VOLT;
692 packet.type = SR_DF_ANALOG;
693 packet.payload = &analog;
694 sr_session_send(cb_data, &packet);
695 g_slist_free(analog.probes);
696 g_array_free(data, TRUE);
699 if (sr_scpi_get_uint8v(sdi->conn, NULL, &data) != SR_OK) {
705 packet.type = SR_DF_FRAME_BEGIN;
706 sr_session_send(sdi, &packet);
708 logic.length = data->len;
710 logic.data = data->data;
711 packet.type = SR_DF_LOGIC;
712 packet.payload = &logic;
713 sr_session_send(cb_data, &packet);
714 g_array_free(data, TRUE);
717 sr_err("Invalid probe type.");
721 packet.type = SR_DF_FRAME_END;
722 sr_session_send(sdi, &packet);
724 if (devc->current_probe->next) {
725 devc->current_probe = devc->current_probe->next;
726 hmo_request_data(sdi);
727 } else if (++devc->num_frames == devc->frame_limit) {
728 sdi->driver->dev_acquisition_stop(sdi, cb_data);
730 devc->current_probe = devc->enabled_probes;
731 hmo_request_data(sdi);