[libsigrok.git] / src / hardware / lecroy-xstream / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2017 Sven Schnelle <svens@stackframe.org>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <stdlib.h>
#include "scpi.h"
#include "protocol.h"

static struct sr_dev_driver lecroy_xstream_driver_info;

static const char *manufacturers[] = {
	"LECROY",
};

static const uint32_t scanopts[] = {
	SR_CONF_CONN,
};

static const uint32_t drvopts[] = {
	SR_CONF_OSCILLOSCOPE,
};

static const uint32_t devopts[] = {
	SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET,
	SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_NUM_HDIV | SR_CONF_GET,
	SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const uint32_t devopts_cg_analog[] = {
	SR_CONF_NUM_VDIV | SR_CONF_GET,
	SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_scpi_hw_info *hw_info;

	sdi = NULL;
	devc = NULL;
	hw_info = NULL;

	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
		sr_info("Couldn't get IDN response.");
		goto fail;
	}

	if (std_str_idx_s(hw_info->manufacturer, ARRAY_AND_SIZE(manufacturers)) < 0)
		goto fail;

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->vendor = g_strdup(hw_info->manufacturer);
	sdi->model = g_strdup(hw_info->model);
	sdi->version = g_strdup(hw_info->firmware_version);
	sdi->serial_num = g_strdup(hw_info->serial_number);
	sdi->driver = &lecroy_xstream_driver_info;
	sdi->inst_type = SR_INST_SCPI;
	sdi->conn = scpi;

	sr_scpi_hw_info_free(hw_info);
	hw_info = NULL;

	devc = g_malloc0(sizeof(struct dev_context));

	sdi->priv = devc;

	if (lecroy_xstream_init_device(sdi) != SR_OK)
		goto fail;

	return sdi;

fail:
	sr_scpi_hw_info_free(hw_info);
	sr_dev_inst_free(sdi);
	g_free(devc);

	return NULL;
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	return sr_scpi_scan(di->context, options, probe_device);
}

static void clear_helper(struct dev_context *devc)
{
	lecroy_xstream_state_free(devc->model_state);
	g_free(devc->analog_groups);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	if (sr_scpi_open(sdi->conn) != SR_OK)
		return SR_ERR;

	if (lecroy_xstream_state_get(sdi) != SR_OK)
		return SR_ERR;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	return sr_scpi_close(sdi->conn);
}

static int config_get(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	unsigned int i;
	struct dev_context *devc;
	const struct scope_config *model;
	struct scope_state *state;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	model = devc->model_config;
	state = devc->model_state;
	*data = NULL;

	switch (key) {
	case SR_CONF_NUM_HDIV:
		*data = g_variant_new_int32(model->num_xdivs);
		break;
	case SR_CONF_TIMEBASE:
		*data = g_variant_new("(tt)",
				(*model->timebases)[state->timebase][0],
				(*model->timebases)[state->timebase][1]);
		break;
	case SR_CONF_NUM_VDIV:
		for (i = 0; i < model->analog_channels; i++) {
			if (cg != devc->analog_groups[i])
				continue;
			*data = g_variant_new_int32(model->num_ydivs);
		}
		break;
	case SR_CONF_VDIV:
		for (i = 0; i < model->analog_channels; i++) {
			if (cg != devc->analog_groups[i])
				continue;
			*data = g_variant_new("(tt)",
				(*model->vdivs)[state->analog_channels[i].vdiv][0],
				(*model->vdivs)[state->analog_channels[i].vdiv][1]);
		}
		break;
	case SR_CONF_TRIGGER_SOURCE:
		*data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]);
		break;
	case SR_CONF_TRIGGER_SLOPE:
		*data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]);
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		*data = g_variant_new_double(state->horiz_triggerpos);
		break;
	case SR_CONF_COUPLING:
		for (i = 0; i < model->analog_channels; i++) {
			if (cg != devc->analog_groups[i])
				continue;
			*data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]);
		}
		break;
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(state->sample_rate);
		break;
	case SR_CONF_ENABLED:
		*data = g_variant_new_boolean(FALSE);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(uint32_t key, GVariant *data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	int ret;
	unsigned int i, j;
	char command[MAX_COMMAND_SIZE];
	struct dev_context *devc;
	const struct scope_config *model;
	struct scope_state *state;
	const char *tmp;
	uint64_t p, q;
	double tmp_d;
	gboolean update_sample_rate;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	model = devc->model_config;
	state = devc->model_state;
	update_sample_rate = FALSE;

	ret = SR_ERR_NA;

	switch (key) {
	case SR_CONF_LIMIT_FRAMES:
		devc->frame_limit = g_variant_get_uint64(data);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SOURCE:
		tmp = g_variant_get_string(data, NULL);
		for (i = 0; i < model->num_trigger_sources; i++) {
			if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
				continue;
			state->trigger_source = i;
			g_snprintf(command, sizeof(command),
					"SET TRIGGER SOURCE %s",
					(*model->trigger_sources)[i]);

			ret = sr_scpi_send(sdi->conn, command);
			break;
		}
		break;
	case SR_CONF_VDIV:
		g_variant_get(data, "(tt)", &p, &q);

		for (i = 0; i < model->num_vdivs; i++) {
			if (p != (*model->vdivs)[i][0] || q != (*model->vdivs)[i][1])
				continue;
			for (j = 1; j <= model->analog_channels; j++) {
				if (cg != devc->analog_groups[j - 1])
					continue;
				state->analog_channels[j - 1].vdiv = i;
				g_snprintf(command, sizeof(command),
						"C%d:VDIV %E", j, (float)p/q);

				if (sr_scpi_send(sdi->conn, command) != SR_OK ||
				    sr_scpi_get_opc(sdi->conn) != SR_OK)
					return SR_ERR;

				break;
			}

			ret = SR_OK;
			break;
		}
		break;
	case SR_CONF_TIMEBASE:
		g_variant_get(data, "(tt)", &p, &q);

		for (i = 0; i < model->num_timebases; i++) {
			if (p != (*model->timebases)[i][0] ||
			    q != (*model->timebases)[i][1])
				continue;
			state->timebase = i;
			g_snprintf(command, sizeof(command),
					"TIME_DIV %E", (float)p/q);

			ret = sr_scpi_send(sdi->conn, command);
			update_sample_rate = TRUE;
			break;
		}
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		tmp_d = g_variant_get_double(data);

		if (tmp_d < 0.0 || tmp_d > 1.0)
			return SR_ERR;

		state->horiz_triggerpos = tmp_d;
		tmp_d = -(tmp_d - 0.5) *
			((double)(*model->timebases)[state->timebase][0] /
			 (*model->timebases)[state->timebase][1])
			 * model->num_xdivs;

		g_snprintf(command, sizeof(command), "TRIG POS %e S", tmp_d);

		ret = sr_scpi_send(sdi->conn, command);
		break;
	case SR_CONF_TRIGGER_SLOPE:
		tmp = g_variant_get_string(data, NULL);
		for (i = 0; i < model->num_trigger_slopes; i++) {
			if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0)
				continue;
			state->trigger_slope = i;
			g_snprintf(command, sizeof(command),
					"SET TRIGGER SLOPE %s",
					(*model->trigger_slopes)[i]);

			ret = sr_scpi_send(sdi->conn, command);
			break;
		}
		break;
	case SR_CONF_COUPLING:
		tmp = g_variant_get_string(data, NULL);

		for (i = 0; i < model->num_coupling_options; i++) {
			if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
				continue;
			for (j = 1; j <= model->analog_channels; j++) {
				if (cg != devc->analog_groups[j - 1])
					continue;
				state->analog_channels[j - 1].coupling = i;

				g_snprintf(command, sizeof(command),
						"C%d:COUPLING %s", j, tmp);

				if (sr_scpi_send(sdi->conn, command) != SR_OK ||
				    sr_scpi_get_opc(sdi->conn) != SR_OK)
					return SR_ERR;
				break;
			}

			ret = SR_OK;
			break;
		}
		break;
	default:
		ret = SR_ERR_NA;
		break;
	}

	if (ret == SR_OK)
		ret = sr_scpi_get_opc(sdi->conn);

	if (ret == SR_OK && update_sample_rate)
		ret = lecroy_xstream_update_sample_rate(sdi);

	return ret;
}

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	const struct scope_config *model;

	devc = (sdi) ? sdi->priv : NULL;
	model = (devc) ? devc->model_config : NULL;

	switch (key) {
	case SR_CONF_SCAN_OPTIONS:
		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, NULL);
	case SR_CONF_DEVICE_OPTIONS:
		if (!cg)
			return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
		*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
		break;
	case SR_CONF_COUPLING:
		*data = g_variant_new_strv(*model->coupling_options, model->num_coupling_options);
		break;
	case SR_CONF_TRIGGER_SOURCE:
		if (!model)
			return SR_ERR_ARG;
		*data = g_variant_new_strv(*model->trigger_sources, model->num_trigger_sources);
		break;
	case SR_CONF_TRIGGER_SLOPE:
		if (!model)
			return SR_ERR_ARG;
		*data = g_variant_new_strv(*model->trigger_slopes, model->num_trigger_slopes);
		break;
	case SR_CONF_TIMEBASE:
		if (!model)
			return SR_ERR_ARG;
		*data = std_gvar_tuple_array(*model->timebases, model->num_timebases);
		break;
	case SR_CONF_VDIV:
		if (!model)
			return SR_ERR_ARG;
		*data = std_gvar_tuple_array(*model->vdivs, model->num_vdivs);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

SR_PRIV int lecroy_xstream_request_data(const struct sr_dev_inst *sdi)
{
	char command[MAX_COMMAND_SIZE];
	struct sr_channel *ch;
	struct dev_context *devc;

	devc = sdi->priv;

	ch = devc->current_channel->data;

	if (ch->type != SR_CHANNEL_ANALOG)
		return SR_ERR;

	g_snprintf(command, sizeof(command),
		"COMM_FORMAT DEF9,WORD,BIN;C%d:WAVEFORM?", ch->index + 1);
	return sr_scpi_send(sdi->conn, command);
}

static int setup_channels(const struct sr_dev_inst *sdi)
{
	GSList *l;
	gboolean setup_changed;
	char command[MAX_COMMAND_SIZE];
	struct scope_state *state;
	struct sr_channel *ch;
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

	devc = sdi->priv;
	scpi = sdi->conn;
	state = devc->model_state;
	setup_changed = FALSE;

	for (l = sdi->channels; l; l = l->next) {
		ch = l->data;
		switch (ch->type) {
		case SR_CHANNEL_ANALOG:
			if (ch->enabled == state->analog_channels[ch->index].state)
				break;
			g_snprintf(command, sizeof(command), "C%d:TRACE %s",
				   ch->index + 1, ch->enabled ? "ON" : "OFF");

			if (sr_scpi_send(scpi, command) != SR_OK)
				return SR_ERR;
			state->analog_channels[ch->index].state = ch->enabled;
			setup_changed = TRUE;
			break;
		default:
			return SR_ERR;
		}
	}

	if (setup_changed && lecroy_xstream_update_sample_rate(sdi) != SR_OK)
		return SR_ERR;

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	GSList *l;
	struct sr_channel *ch;
	struct dev_context *devc;
	int ret;
	struct sr_scpi_dev_inst *scpi;

	devc = sdi->priv;
	scpi = sdi->conn;

	/* Preset empty results. */
	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	/*
	 * Contruct the list of enabled channels. Determine the highest
	 * number of digital pods involved in the acquisition.
	 */

	for (l = sdi->channels; l; l = l->next) {
		ch = l->data;
		if (!ch->enabled)
			continue;
		/* Only add a single digital channel per group (pod). */
		devc->enabled_channels = g_slist_append(
			devc->enabled_channels, ch);
	}

	if (!devc->enabled_channels)
		return SR_ERR;

	/*
	 * Configure the analog channels and the
	 * corresponding digital pods.
	 */
	if (setup_channels(sdi) != SR_OK) {
		sr_err("Failed to setup channel configuration!");
		ret = SR_ERR;
		goto free_enabled;
	}

	/*
	 * Start acquisition on the first enabled channel. The
	 * receive routine will continue driving the acquisition.
	 */
	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
			lecroy_xstream_receive_data, (void *)sdi);

	std_session_send_df_header(sdi);

	devc->current_channel = devc->enabled_channels;

	return lecroy_xstream_request_data(sdi);

free_enabled:
	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	return ret;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

	std_session_send_df_end(sdi);

	devc = sdi->priv;

	devc->num_frames = 0;
	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;
	scpi = sdi->conn;
	sr_scpi_source_remove(sdi->session, scpi);

	return SR_OK;
}

static struct sr_dev_driver lecroy_xstream_driver_info = {
	.name = "lecroy-xstream",
	.longname = "LeCroy X-Stream",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(lecroy_xstream_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2017 Sven Schnelle <svens@stackframe.org>
	5	*
	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.
	10	*
	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.
	15	*
	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/>.
	18	*/
	19
	20	#include <config.h>
	21	#include <stdlib.h>
	22	#include "scpi.h"
	23	#include "protocol.h"
	24
	25	static struct sr_dev_driver lecroy_xstream_driver_info;
	26
	27	static const char *manufacturers[] = {
	28	"LECROY",
	29	};
	30
	31	static const uint32_t scanopts[] = {
	32	SR_CONF_CONN,
	33	};
	34
	35	static const uint32_t drvopts[] = {
	36	SR_CONF_OSCILLOSCOPE,
	37	};
	38
	39	static const uint32_t devopts[] = {
	40	SR_CONF_LIMIT_FRAMES \| SR_CONF_GET \| SR_CONF_SET,
	41	SR_CONF_SAMPLERATE \| SR_CONF_GET,
	42	SR_CONF_TIMEBASE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	43	SR_CONF_NUM_HDIV \| SR_CONF_GET,
	44	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_GET \| SR_CONF_SET,
	45	SR_CONF_TRIGGER_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	46	SR_CONF_TRIGGER_SLOPE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	47	};
	48
	49	static const uint32_t devopts_cg_analog[] = {
	50	SR_CONF_NUM_VDIV \| SR_CONF_GET,
	51	SR_CONF_VDIV \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	52	SR_CONF_COUPLING \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	53	};
	54
	55	static struct sr_dev_inst probe_device(struct sr_scpi_dev_inst scpi)
	56	{
	57	struct sr_dev_inst *sdi;
	58	struct dev_context *devc;
	59	struct sr_scpi_hw_info *hw_info;
	60
	61	sdi = NULL;
	62	devc = NULL;
	63	hw_info = NULL;
	64
	65	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	66	sr_info("Couldn't get IDN response.");
	67	goto fail;
	68	}
	69
	70	if (std_str_idx_s(hw_info->manufacturer, ARRAY_AND_SIZE(manufacturers)) < 0)
	71	goto fail;
	72
	73	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	74	sdi->vendor = g_strdup(hw_info->manufacturer);
	75	sdi->model = g_strdup(hw_info->model);
	76	sdi->version = g_strdup(hw_info->firmware_version);
	77	sdi->serial_num = g_strdup(hw_info->serial_number);
	78	sdi->driver = &lecroy_xstream_driver_info;
	79	sdi->inst_type = SR_INST_SCPI;
	80	sdi->conn = scpi;
	81
	82	sr_scpi_hw_info_free(hw_info);
	83	hw_info = NULL;
	84
	85	devc = g_malloc0(sizeof(struct dev_context));
	86
	87	sdi->priv = devc;
	88
	89	if (lecroy_xstream_init_device(sdi) != SR_OK)
	90	goto fail;
	91
	92	return sdi;
	93
	94	fail:
	95	sr_scpi_hw_info_free(hw_info);
	96	sr_dev_inst_free(sdi);
	97	g_free(devc);
	98
	99	return NULL;
	100	}
	101
	102	static GSList scan(struct sr_dev_driver di, GSList *options)
	103	{
	104	return sr_scpi_scan(di->context, options, probe_device);
	105	}
	106
	107	static void clear_helper(struct dev_context *devc)
	108	{
	109	lecroy_xstream_state_free(devc->model_state);
	110	g_free(devc->analog_groups);
	111	}
	112
	113	static int dev_clear(const struct sr_dev_driver *di)
	114	{
	115	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
	116	}
	117
	118	static int dev_open(struct sr_dev_inst *sdi)
	119	{
	120	if (sr_scpi_open(sdi->conn) != SR_OK)
	121	return SR_ERR;
	122
	123	if (lecroy_xstream_state_get(sdi) != SR_OK)
	124	return SR_ERR;
	125
	126	return SR_OK;
	127	}
	128
	129	static int dev_close(struct sr_dev_inst *sdi)
	130	{
	131	return sr_scpi_close(sdi->conn);
	132	}
	133
	134	static int config_get(uint32_t key, GVariant **data,
	135	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	136	{
	137	unsigned int i;
	138	struct dev_context *devc;
	139	const struct scope_config *model;
	140	struct scope_state *state;
	141
	142	if (!sdi)
	143	return SR_ERR_ARG;
	144
	145	devc = sdi->priv;
	146
	147	model = devc->model_config;
	148	state = devc->model_state;
	149	*data = NULL;
	150
	151	switch (key) {
	152	case SR_CONF_NUM_HDIV:
	153	*data = g_variant_new_int32(model->num_xdivs);
	154	break;
	155	case SR_CONF_TIMEBASE:
	156	*data = g_variant_new("(tt)",
	157	(*model->timebases)[state->timebase][0],
	158	(*model->timebases)[state->timebase][1]);
	159	break;
	160	case SR_CONF_NUM_VDIV:
	161	for (i = 0; i < model->analog_channels; i++) {
	162	if (cg != devc->analog_groups[i])
	163	continue;
	164	*data = g_variant_new_int32(model->num_ydivs);
	165	}
	166	break;
	167	case SR_CONF_VDIV:
	168	for (i = 0; i < model->analog_channels; i++) {
	169	if (cg != devc->analog_groups[i])
	170	continue;
	171	*data = g_variant_new("(tt)",
	172	(*model->vdivs)[state->analog_channels[i].vdiv][0],
	173	(*model->vdivs)[state->analog_channels[i].vdiv][1]);
	174	}
	175	break;
	176	case SR_CONF_TRIGGER_SOURCE:
	177	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	178	break;
	179	case SR_CONF_TRIGGER_SLOPE:
	180	data = g_variant_new_string((model->trigger_slopes)[state->trigger_slope]);
	181	break;
	182	case SR_CONF_HORIZ_TRIGGERPOS:
	183	*data = g_variant_new_double(state->horiz_triggerpos);
	184	break;
	185	case SR_CONF_COUPLING:
	186	for (i = 0; i < model->analog_channels; i++) {
	187	if (cg != devc->analog_groups[i])
	188	continue;
	189	data = g_variant_new_string((model->coupling_options)[state->analog_channels[i].coupling]);
	190	}
	191	break;
	192	case SR_CONF_SAMPLERATE:
	193	*data = g_variant_new_uint64(state->sample_rate);
	194	break;
	195	case SR_CONF_ENABLED:
	196	*data = g_variant_new_boolean(FALSE);
	197	break;
	198	default:
	199	return SR_ERR_NA;
	200	}
	201
	202	return SR_OK;
	203	}
	204
	205	static int config_set(uint32_t key, GVariant *data,
	206	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	207	{
	208	int ret;
	209	unsigned int i, j;
	210	char command[MAX_COMMAND_SIZE];
	211	struct dev_context *devc;
	212	const struct scope_config *model;
	213	struct scope_state *state;
	214	const char *tmp;
	215	uint64_t p, q;
	216	double tmp_d;
	217	gboolean update_sample_rate;
	218
	219	if (!sdi)
	220	return SR_ERR_ARG;
	221
	222	devc = sdi->priv;
	223
	224	model = devc->model_config;
	225	state = devc->model_state;
	226	update_sample_rate = FALSE;
	227
	228	ret = SR_ERR_NA;
	229
	230	switch (key) {
	231	case SR_CONF_LIMIT_FRAMES:
	232	devc->frame_limit = g_variant_get_uint64(data);
	233	ret = SR_OK;
	234	break;
	235	case SR_CONF_TRIGGER_SOURCE:
	236	tmp = g_variant_get_string(data, NULL);
	237	for (i = 0; i < model->num_trigger_sources; i++) {
	238	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	239	continue;
	240	state->trigger_source = i;
	241	g_snprintf(command, sizeof(command),
	242	"SET TRIGGER SOURCE %s",
	243	(*model->trigger_sources)[i]);
	244
	245	ret = sr_scpi_send(sdi->conn, command);
	246	break;
	247	}
	248	break;
	249	case SR_CONF_VDIV:
	250	g_variant_get(data, "(tt)", &p, &q);
	251
	252	for (i = 0; i < model->num_vdivs; i++) {
	253	if (p != (model->vdivs)[i][0] \|\| q != (model->vdivs)[i][1])
	254	continue;
	255	for (j = 1; j <= model->analog_channels; j++) {
	256	if (cg != devc->analog_groups[j - 1])
	257	continue;
	258	state->analog_channels[j - 1].vdiv = i;
	259	g_snprintf(command, sizeof(command),
	260	"C%d:VDIV %E", j, (float)p/q);
	261
	262	if (sr_scpi_send(sdi->conn, command) != SR_OK \|\|
	263	sr_scpi_get_opc(sdi->conn) != SR_OK)
	264	return SR_ERR;
	265
	266	break;
	267	}
	268
	269	ret = SR_OK;
	270	break;
	271	}
	272	break;
	273	case SR_CONF_TIMEBASE:
	274	g_variant_get(data, "(tt)", &p, &q);
	275
	276	for (i = 0; i < model->num_timebases; i++) {
	277	if (p != (*model->timebases)[i][0] \|\|
	278	q != (*model->timebases)[i][1])
	279	continue;
	280	state->timebase = i;
	281	g_snprintf(command, sizeof(command),
	282	"TIME_DIV %E", (float)p/q);
	283
	284	ret = sr_scpi_send(sdi->conn, command);
	285	update_sample_rate = TRUE;
	286	break;
	287	}
	288	break;
	289	case SR_CONF_HORIZ_TRIGGERPOS:
	290	tmp_d = g_variant_get_double(data);
	291
	292	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	293	return SR_ERR;
	294
	295	state->horiz_triggerpos = tmp_d;
	296	tmp_d = -(tmp_d - 0.5) *
	297	((double)(*model->timebases)[state->timebase][0] /
	298	(*model->timebases)[state->timebase][1])
	299	* model->num_xdivs;
	300
	301	g_snprintf(command, sizeof(command), "TRIG POS %e S", tmp_d);
	302
	303	ret = sr_scpi_send(sdi->conn, command);
	304	break;
	305	case SR_CONF_TRIGGER_SLOPE:
	306	tmp = g_variant_get_string(data, NULL);
	307	for (i = 0; i < model->num_trigger_slopes; i++) {
	308	if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0)
	309	continue;
	310	state->trigger_slope = i;
	311	g_snprintf(command, sizeof(command),
	312	"SET TRIGGER SLOPE %s",
	313	(*model->trigger_slopes)[i]);
	314
	315	ret = sr_scpi_send(sdi->conn, command);
	316	break;
	317	}
	318	break;
	319	case SR_CONF_COUPLING:
	320	tmp = g_variant_get_string(data, NULL);
	321
	322	for (i = 0; i < model->num_coupling_options; i++) {
	323	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	324	continue;
	325	for (j = 1; j <= model->analog_channels; j++) {
	326	if (cg != devc->analog_groups[j - 1])
	327	continue;
	328	state->analog_channels[j - 1].coupling = i;
	329
	330	g_snprintf(command, sizeof(command),
	331	"C%d:COUPLING %s", j, tmp);
	332
	333	if (sr_scpi_send(sdi->conn, command) != SR_OK \|\|
	334	sr_scpi_get_opc(sdi->conn) != SR_OK)
	335	return SR_ERR;
	336	break;
	337	}
	338
	339	ret = SR_OK;
	340	break;
	341	}
	342	break;
	343	default:
	344	ret = SR_ERR_NA;
	345	break;
	346	}
	347
	348	if (ret == SR_OK)
	349	ret = sr_scpi_get_opc(sdi->conn);
	350
	351	if (ret == SR_OK && update_sample_rate)
	352	ret = lecroy_xstream_update_sample_rate(sdi);
	353
	354	return ret;
	355	}
	356
	357	static int config_list(uint32_t key, GVariant **data,
	358	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	359	{
	360	struct dev_context *devc;
	361	const struct scope_config *model;
	362
	363	devc = (sdi) ? sdi->priv : NULL;
	364	model = (devc) ? devc->model_config : NULL;
	365
	366	switch (key) {
	367	case SR_CONF_SCAN_OPTIONS:
	368	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, NULL);
	369	case SR_CONF_DEVICE_OPTIONS:
	370	if (!cg)
	371	return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
	372	*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
	373	break;
	374	case SR_CONF_COUPLING:
	375	data = g_variant_new_strv(model->coupling_options, model->num_coupling_options);
	376	break;
	377	case SR_CONF_TRIGGER_SOURCE:
	378	if (!model)
	379	return SR_ERR_ARG;
	380	data = g_variant_new_strv(model->trigger_sources, model->num_trigger_sources);
	381	break;
	382	case SR_CONF_TRIGGER_SLOPE:
	383	if (!model)
	384	return SR_ERR_ARG;
	385	data = g_variant_new_strv(model->trigger_slopes, model->num_trigger_slopes);
	386	break;
	387	case SR_CONF_TIMEBASE:
	388	if (!model)
	389	return SR_ERR_ARG;
	390	data = std_gvar_tuple_array(model->timebases, model->num_timebases);
	391	break;
	392	case SR_CONF_VDIV:
	393	if (!model)
	394	return SR_ERR_ARG;
	395	data = std_gvar_tuple_array(model->vdivs, model->num_vdivs);
	396	break;
	397	default:
	398	return SR_ERR_NA;
	399	}
	400
	401	return SR_OK;
	402	}
	403
	404	SR_PRIV int lecroy_xstream_request_data(const struct sr_dev_inst *sdi)
	405	{
	406	char command[MAX_COMMAND_SIZE];
	407	struct sr_channel *ch;
	408	struct dev_context *devc;
	409
	410	devc = sdi->priv;
	411
	412	ch = devc->current_channel->data;
	413
	414	if (ch->type != SR_CHANNEL_ANALOG)
	415	return SR_ERR;
	416
	417	g_snprintf(command, sizeof(command),
	418	"COMM_FORMAT DEF9,WORD,BIN;C%d:WAVEFORM?", ch->index + 1);
	419	return sr_scpi_send(sdi->conn, command);
	420	}
	421
	422	static int setup_channels(const struct sr_dev_inst *sdi)
	423	{
	424	GSList *l;
	425	gboolean setup_changed;
	426	char command[MAX_COMMAND_SIZE];
	427	struct scope_state *state;
	428	struct sr_channel *ch;
	429	struct dev_context *devc;
	430	struct sr_scpi_dev_inst *scpi;
	431
	432	devc = sdi->priv;
	433	scpi = sdi->conn;
	434	state = devc->model_state;
	435	setup_changed = FALSE;
	436
	437	for (l = sdi->channels; l; l = l->next) {
	438	ch = l->data;
	439	switch (ch->type) {
	440	case SR_CHANNEL_ANALOG:
	441	if (ch->enabled == state->analog_channels[ch->index].state)
	442	break;
	443	g_snprintf(command, sizeof(command), "C%d:TRACE %s",
	444	ch->index + 1, ch->enabled ? "ON" : "OFF");
	445
	446	if (sr_scpi_send(scpi, command) != SR_OK)
	447	return SR_ERR;
	448	state->analog_channels[ch->index].state = ch->enabled;
	449	setup_changed = TRUE;
	450	break;
	451	default:
	452	return SR_ERR;
	453	}
	454	}
	455
	456	if (setup_changed && lecroy_xstream_update_sample_rate(sdi) != SR_OK)
	457	return SR_ERR;
	458
	459	return SR_OK;
	460	}
	461
	462	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	463	{
	464	GSList *l;
	465	struct sr_channel *ch;
	466	struct dev_context *devc;
	467	int ret;
	468	struct sr_scpi_dev_inst *scpi;
	469
	470	devc = sdi->priv;
	471	scpi = sdi->conn;
	472
	473	/* Preset empty results. */
	474	g_slist_free(devc->enabled_channels);
	475	devc->enabled_channels = NULL;
	476
	477	/*
	478	* Contruct the list of enabled channels. Determine the highest
	479	* number of digital pods involved in the acquisition.
	480	*/
	481
	482	for (l = sdi->channels; l; l = l->next) {
	483	ch = l->data;
	484	if (!ch->enabled)
	485	continue;
	486	/* Only add a single digital channel per group (pod). */
	487	devc->enabled_channels = g_slist_append(
	488	devc->enabled_channels, ch);
	489	}
	490
	491	if (!devc->enabled_channels)
	492	return SR_ERR;
	493
	494	/*
	495	* Configure the analog channels and the
	496	* corresponding digital pods.
	497	*/
	498	if (setup_channels(sdi) != SR_OK) {
	499	sr_err("Failed to setup channel configuration!");
	500	ret = SR_ERR;
	501	goto free_enabled;
	502	}
	503
	504	/*
	505	* Start acquisition on the first enabled channel. The
	506	* receive routine will continue driving the acquisition.
	507	*/
	508	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
	509	lecroy_xstream_receive_data, (void *)sdi);
	510
	511	std_session_send_df_header(sdi);
	512
	513	devc->current_channel = devc->enabled_channels;
	514
	515	return lecroy_xstream_request_data(sdi);
	516
	517	free_enabled:
	518	g_slist_free(devc->enabled_channels);
	519	devc->enabled_channels = NULL;
	520
	521	return ret;
	522	}
	523
	524	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	525	{
	526	struct dev_context *devc;
	527	struct sr_scpi_dev_inst *scpi;
	528
	529	std_session_send_df_end(sdi);
	530
	531	devc = sdi->priv;
	532
	533	devc->num_frames = 0;
	534	g_slist_free(devc->enabled_channels);
	535	devc->enabled_channels = NULL;
	536	scpi = sdi->conn;
	537	sr_scpi_source_remove(sdi->session, scpi);
	538
	539	return SR_OK;
	540	}
	541
	542	static struct sr_dev_driver lecroy_xstream_driver_info = {
	543	.name = "lecroy-xstream",
	544	.longname = "LeCroy X-Stream",
	545	.api_version = 1,
	546	.init = std_init,
	547	.cleanup = std_cleanup,
	548	.scan = scan,
	549	.dev_list = std_dev_list,
	550	.dev_clear = dev_clear,
	551	.config_get = config_get,
	552	.config_set = config_set,
	553	.config_list = config_list,
	554	.dev_open = dev_open,
	555	.dev_close = dev_close,
	556	.dev_acquisition_start = dev_acquisition_start,
	557	.dev_acquisition_stop = dev_acquisition_stop,
	558	.context = NULL,
	559	};
	560	SR_REGISTER_DEV_DRIVER(lecroy_xstream_driver_info);