[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 analog_devopts[] = {
	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 int check_manufacturer(const char *manufacturer)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(manufacturers); i++)
		if (!strcmp(manufacturer, manufacturers[i]))
			return SR_OK;

	return SR_ERR;
}

static struct sr_dev_inst *probe_serial_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 (check_manufacturer(hw_info->manufacturer) != SR_OK)
		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_serial_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].p,
				model->timebases[state->timebase].q);
		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].p,
				model->vdivs[state->analog_channels[i].vdiv].q);
		}
		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 GVariant *build_tuples(const struct sr_rational *array, unsigned int n)
{
	unsigned int i;
	GVariant *rational[2];
	GVariantBuilder gvb;

	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);

	for (i = 0; i < n; i++) {
		rational[0] = g_variant_new_uint64(array[i].p);
		rational[1] = g_variant_new_uint64(array[i].q);

		/* FIXME: Valgrind reports a memory leak here. */
		g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	}

	return g_variant_builder_end(&gvb);
}

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;
	int64_t p;
	uint64_t 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; (*model->trigger_sources)[i]; 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].p || q != model->vdivs[i].q)
				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].p ||
			    q != model->timebases[i].q)
				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].p /
			 model->timebases[state->timebase].q)
			 * 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; (*model->trigger_slopes)[i]; 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; (*model->coupling_options)[i]; 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 = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
			analog_devopts, ARRAY_SIZE(analog_devopts),
			sizeof(uint32_t));
		break;
	case SR_CONF_COUPLING:
		*data = g_variant_new_strv(*model->coupling_options,
			   g_strv_length((char **)*model->coupling_options));
		break;
	case SR_CONF_TRIGGER_SOURCE:
		if (!model)
			return SR_ERR_ARG;
		*data = g_variant_new_strv(*model->trigger_sources,
			   g_strv_length((char **)*model->trigger_sources));
		break;
	case SR_CONF_TRIGGER_SLOPE:
		if (!model)
			return SR_ERR_ARG;
		*data = g_variant_new_strv(*model->trigger_slopes,
			   g_strv_length((char **)*model->trigger_slopes));
		break;
	case SR_CONF_TIMEBASE:
		if (!model)
			return SR_ERR_ARG;
		*data = build_tuples(model->timebases, model->num_timebases);
		break;
	case SR_CONF_VDIV:
		if (!model)
			return SR_ERR_ARG;
		*data = build_tuples(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
e3b83c5e SS	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>
3f2c7c94 SS	21	#include <stdlib.h>
3f2c7c94 SS	22	#include "scpi.h"
e3b83c5e SS	23	#include "protocol.h"
e3b83c5e SS	24
3f2c7c94 SS	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
90230cfa SA	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,
86621306	41	SR_CONF_SAMPLERATE \| SR_CONF_GET,
90230cfa SA	42	SR_CONF_TIMEBASE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
90230cfa SA	43	SR_CONF_NUM_HDIV \| SR_CONF_GET,
90230cfa	44	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_GET \| SR_CONF_SET,
86621306 UH	45	SR_CONF_TRIGGER_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
86621306 UH	46	SR_CONF_TRIGGER_SLOPE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
90230cfa SA	47	};
	48
	49	static const uint32_t analog_devopts[] = {
	50	SR_CONF_NUM_VDIV \| SR_CONF_GET,
90230cfa	51	SR_CONF_VDIV \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
86621306	52	SR_CONF_COUPLING \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
90230cfa SA	53	};
90230cfa SA	54
3f2c7c94 SS	55	static int check_manufacturer(const char *manufacturer)
	56	{
	57	unsigned int i;
	58
	59	for (i = 0; i < ARRAY_SIZE(manufacturers); i++)
	60	if (!strcmp(manufacturer, manufacturers[i]))
	61	return SR_OK;
	62
	63	return SR_ERR;
	64	}
	65
	66	static struct sr_dev_inst probe_serial_device(struct sr_scpi_dev_inst scpi)
	67	{
	68	struct sr_dev_inst *sdi;
	69	struct dev_context *devc;
	70	struct sr_scpi_hw_info *hw_info;
	71
	72	sdi = NULL;
	73	devc = NULL;
	74	hw_info = NULL;
	75
3f2c7c94 SS	76	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	77	sr_info("Couldn't get IDN response.");
	78	goto fail;
	79	}
	80
	81	if (check_manufacturer(hw_info->manufacturer) != SR_OK)
	82	goto fail;
	83
	84	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	85	sdi->vendor = g_strdup(hw_info->manufacturer);
	86	sdi->model = g_strdup(hw_info->model);
	87	sdi->version = g_strdup(hw_info->firmware_version);
	88	sdi->serial_num = g_strdup(hw_info->serial_number);
	89	sdi->driver = &lecroy_xstream_driver_info;
	90	sdi->inst_type = SR_INST_SCPI;
	91	sdi->conn = scpi;
	92
	93	sr_scpi_hw_info_free(hw_info);
	94	hw_info = NULL;
	95
	96	devc = g_malloc0(sizeof(struct dev_context));
	97
	98	sdi->priv = devc;
	99
	100	if (lecroy_xstream_init_device(sdi) != SR_OK)
	101	goto fail;
	102
	103	return sdi;
	104
	105	fail:
	106	sr_scpi_hw_info_free(hw_info);
4bf93988	107	sr_dev_inst_free(sdi);
3f2c7c94 SS	108	g_free(devc);
	109
	110	return NULL;
	111	}
e3b83c5e SS	112
	113	static GSList scan(struct sr_dev_driver di, GSList *options)
	114	{
3f2c7c94 SS	115	return sr_scpi_scan(di->context, options, probe_serial_device);
	116	}
	117
3553451f	118	static void clear_helper(struct dev_context *devc)
3f2c7c94	119	{
3f2c7c94	120	lecroy_xstream_state_free(devc->model_state);
3f2c7c94	121	g_free(devc->analog_groups);
e3b83c5e SS	122	}
	123
	124	static int dev_clear(const struct sr_dev_driver *di)
	125	{
3553451f	126	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
e3b83c5e SS	127	}
	128
	129	static int dev_open(struct sr_dev_inst *sdi)
	130	{
6402c379	131	if (sr_scpi_open(sdi->conn) != SR_OK)
3f2c7c94	132	return SR_ERR;
e3b83c5e	133
3f2c7c94 SS	134	if (lecroy_xstream_state_get(sdi) != SR_OK)
3f2c7c94 SS	135	return SR_ERR;
e3b83c5e	136
e3b83c5e SS	137	return SR_OK;
	138	}
	139
	140	static int dev_close(struct sr_dev_inst *sdi)
	141	{
f1ba6b4b	142	return sr_scpi_close(sdi->conn);
e3b83c5e SS	143	}
	144
	145	static int config_get(uint32_t key, GVariant **data,
ea257cdc	146	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
e3b83c5e	147	{
3f2c7c94 SS	148	unsigned int i;
	149	struct dev_context *devc;
	150	const struct scope_config *model;
	151	struct scope_state *state;
e3b83c5e	152
3f2c7c94 SS	153	if (!sdi)
	154	return SR_ERR_ARG;
	155
	156	devc = sdi->priv;
e3b83c5e	157
3f2c7c94 SS	158	model = devc->model_config;
	159	state = devc->model_state;
	160	*data = NULL;
ea257cdc	161
e3b83c5e	162	switch (key) {
3f2c7c94 SS	163	case SR_CONF_NUM_HDIV:
3f2c7c94 SS	164	*data = g_variant_new_int32(model->num_xdivs);
3f2c7c94 SS	165	break;
	166	case SR_CONF_TIMEBASE:
	167	*data = g_variant_new("(tt)",
ea257cdc UH	168	model->timebases[state->timebase].p,
ea257cdc UH	169	model->timebases[state->timebase].q);
3f2c7c94 SS	170	break;
	171	case SR_CONF_NUM_VDIV:
	172	for (i = 0; i < model->analog_channels; i++) {
	173	if (cg != devc->analog_groups[i])
	174	continue;
	175	*data = g_variant_new_int32(model->num_ydivs);
3f2c7c94 SS	176	}
	177	break;
	178	case SR_CONF_VDIV:
	179	for (i = 0; i < model->analog_channels; i++) {
	180	if (cg != devc->analog_groups[i])
	181	continue;
	182	*data = g_variant_new("(tt)",
ea257cdc UH	183	model->vdivs[state->analog_channels[i].vdiv].p,
ea257cdc UH	184	model->vdivs[state->analog_channels[i].vdiv].q);
3f2c7c94 SS	185	}
	186	break;
	187	case SR_CONF_TRIGGER_SOURCE:
	188	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
3f2c7c94 SS	189	break;
	190	case SR_CONF_TRIGGER_SLOPE:
	191	data = g_variant_new_string((model->trigger_slopes)[state->trigger_slope]);
3f2c7c94 SS	192	break;
	193	case SR_CONF_HORIZ_TRIGGERPOS:
	194	*data = g_variant_new_double(state->horiz_triggerpos);
3f2c7c94 SS	195	break;
3f2c7c94 SS	196	case SR_CONF_COUPLING:
3f2c7c94	197	for (i = 0; i < model->analog_channels; i++) {
ea257cdc	198	if (cg != devc->analog_groups[i])
3f2c7c94	199	continue;
3f2c7c94	200	data = g_variant_new_string((model->coupling_options)[state->analog_channels[i].coupling]);
3f2c7c94 SS	201	}
	202	break;
	203	case SR_CONF_SAMPLERATE:
	204	*data = g_variant_new_uint64(state->sample_rate);
3f2c7c94 SS	205	break;
	206	case SR_CONF_ENABLED:
	207	*data = g_variant_new_boolean(FALSE);
3f2c7c94	208	break;
e3b83c5e	209	default:
a9010323	210	return SR_ERR_NA;
e3b83c5e	211	}
ea257cdc	212
a9010323	213	return SR_OK;
e3b83c5e SS	214	}
e3b83c5e SS	215
3f2c7c94 SS	216	static GVariant build_tuples(const struct sr_rational array, unsigned int n)
	217	{
	218	unsigned int i;
	219	GVariant *rational[2];
	220	GVariantBuilder gvb;
	221
	222	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	223
	224	for (i = 0; i < n; i++) {
	225	rational[0] = g_variant_new_uint64(array[i].p);
	226	rational[1] = g_variant_new_uint64(array[i].q);
	227
	228	/* FIXME: Valgrind reports a memory leak here. */
	229	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	230	}
	231
	232	return g_variant_builder_end(&gvb);
	233	}
	234
ea257cdc UH	235	static int config_set(uint32_t key, GVariant *data,
ea257cdc UH	236	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
e3b83c5e SS	237	{
e3b83c5e SS	238	int ret;
3f2c7c94 SS	239	unsigned int i, j;
	240	char command[MAX_COMMAND_SIZE];
	241	struct dev_context *devc;
	242	const struct scope_config *model;
	243	struct scope_state *state;
	244	const char *tmp;
	245	int64_t p;
	246	uint64_t q;
	247	double tmp_d;
	248	gboolean update_sample_rate;
e3b83c5e	249
3f2c7c94 SS	250	if (!sdi)
3f2c7c94 SS	251	return SR_ERR_ARG;
e3b83c5e	252
3f2c7c94 SS	253	devc = sdi->priv;
	254
	255	model = devc->model_config;
	256	state = devc->model_state;
	257	update_sample_rate = FALSE;
	258
	259	ret = SR_ERR_NA;
e3b83c5e	260
e3b83c5e	261	switch (key) {
3f2c7c94 SS	262	case SR_CONF_LIMIT_FRAMES:
	263	devc->frame_limit = g_variant_get_uint64(data);
	264	ret = SR_OK;
	265	break;
	266	case SR_CONF_TRIGGER_SOURCE:
	267	tmp = g_variant_get_string(data, NULL);
	268	for (i = 0; (*model->trigger_sources)[i]; i++) {
	269	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	270	continue;
	271	state->trigger_source = i;
	272	g_snprintf(command, sizeof(command),
	273	"SET TRIGGER SOURCE %s",
	274	(*model->trigger_sources)[i]);
	275
	276	ret = sr_scpi_send(sdi->conn, command);
	277	break;
	278	}
	279	break;
	280	case SR_CONF_VDIV:
	281	g_variant_get(data, "(tt)", &p, &q);
	282
	283	for (i = 0; i < model->num_vdivs; i++) {
	284	if (p != model->vdivs[i].p \|\| q != model->vdivs[i].q)
	285	continue;
	286	for (j = 1; j <= model->analog_channels; j++) {
	287	if (cg != devc->analog_groups[j - 1])
	288	continue;
	289	state->analog_channels[j - 1].vdiv = i;
	290	g_snprintf(command, sizeof(command),
	291	"C%d:VDIV %E", j, (float)p/q);
	292
	293	if (sr_scpi_send(sdi->conn, command) != SR_OK \|\|
	294	sr_scpi_get_opc(sdi->conn) != SR_OK)
	295	return SR_ERR;
	296
	297	break;
	298	}
	299
	300	ret = SR_OK;
	301	break;
	302	}
	303	break;
	304	case SR_CONF_TIMEBASE:
	305	g_variant_get(data, "(tt)", &p, &q);
	306
	307	for (i = 0; i < model->num_timebases; i++) {
	308	if (p != model->timebases[i].p \|\|
	309	q != model->timebases[i].q)
	310	continue;
	311	state->timebase = i;
	312	g_snprintf(command, sizeof(command),
	313	"TIME_DIV %E", (float)p/q);
	314
	315	ret = sr_scpi_send(sdi->conn, command);
	316	update_sample_rate = TRUE;
	317	break;
	318	}
	319	break;
	320	case SR_CONF_HORIZ_TRIGGERPOS:
	321	tmp_d = g_variant_get_double(data);
	322
	323	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	324	return SR_ERR;
	325
326	state->horiz_triggerpos = tmp_d;
327	tmp_d = -(tmp_d - 0.5) *
328	((double)model->timebases[state->timebase].p /
329	model->timebases[state->timebase].q)
330	* model->num_xdivs;
331
332	g_snprintf(command, sizeof(command), "TRIG POS %e S", tmp_d);
333
334	ret = sr_scpi_send(sdi->conn, command);
335	break;
336	case SR_CONF_TRIGGER_SLOPE:
337	tmp = g_variant_get_string(data, NULL);
338	for (i = 0; (*model->trigger_slopes)[i]; i++) {
339	if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0)
340	continue;
341	state->trigger_slope = i;
342	g_snprintf(command, sizeof(command),
343	"SET TRIGGER SLOPE %s",
344	(*model->trigger_slopes)[i]);
345
346	ret = sr_scpi_send(sdi->conn, command);
347	break;
348	}
349	break;
350	case SR_CONF_COUPLING:
3f2c7c94 SS	351	tmp = g_variant_get_string(data, NULL);
	352
	353	for (i = 0; (*model->coupling_options)[i]; i++) {
	354	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	355	continue;
	356	for (j = 1; j <= model->analog_channels; j++) {
	357	if (cg != devc->analog_groups[j - 1])
	358	continue;
ea257cdc	359	state->analog_channels[j - 1].coupling = i;
3f2c7c94 SS	360
	361	g_snprintf(command, sizeof(command),
	362	"C%d:COUPLING %s", j, tmp);
	363
	364	if (sr_scpi_send(sdi->conn, command) != SR_OK \|\|
	365	sr_scpi_get_opc(sdi->conn) != SR_OK)
	366	return SR_ERR;
	367	break;
	368	}
	369
	370	ret = SR_OK;
	371	break;
	372	}
	373	break;
e3b83c5e SS	374	default:
e3b83c5e SS	375	ret = SR_ERR_NA;
3f2c7c94	376	break;
e3b83c5e SS	377	}
e3b83c5e SS	378
3f2c7c94 SS	379	if (ret == SR_OK)
	380	ret = sr_scpi_get_opc(sdi->conn);
	381
	382	if (ret == SR_OK && update_sample_rate)
	383	ret = lecroy_xstream_update_sample_rate(sdi);
	384
e3b83c5e SS	385	return ret;
	386	}
	387
ea257cdc UH	388	static int config_list(uint32_t key, GVariant **data,
ea257cdc UH	389	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
e3b83c5e	390	{
e66d1892 UH	391	struct dev_context *devc;
e66d1892 UH	392	const struct scope_config *model;
90230cfa	393
e66d1892 UH	394	devc = (sdi) ? sdi->priv : NULL;
e66d1892 UH	395	model = (devc) ? devc->model_config : NULL;
90230cfa SA	396
90230cfa SA	397	switch (key) {
e66d1892 UH	398	case SR_CONF_SCAN_OPTIONS:
e66d1892 UH	399	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, NULL);
3f2c7c94	400	case SR_CONF_DEVICE_OPTIONS:
e66d1892 UH	401	if (!cg)
e66d1892 UH	402	return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
3f2c7c94	403	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
90230cfa	404	analog_devopts, ARRAY_SIZE(analog_devopts),
ea257cdc	405	sizeof(uint32_t));
3f2c7c94 SS	406	break;
	407	case SR_CONF_COUPLING:
	408	data = g_variant_new_strv(model->coupling_options,
	409	g_strv_length((char *)model->coupling_options));
	410	break;
	411	case SR_CONF_TRIGGER_SOURCE:
	412	if (!model)
	413	return SR_ERR_ARG;
	414	data = g_variant_new_strv(model->trigger_sources,
	415	g_strv_length((char *)model->trigger_sources));
	416	break;
	417	case SR_CONF_TRIGGER_SLOPE:
	418	if (!model)
	419	return SR_ERR_ARG;
	420	data = g_variant_new_strv(model->trigger_slopes,
	421	g_strv_length((char *)model->trigger_slopes));
	422	break;
	423	case SR_CONF_TIMEBASE:
	424	if (!model)
	425	return SR_ERR_ARG;
	426	*data = build_tuples(model->timebases, model->num_timebases);
	427	break;
	428	case SR_CONF_VDIV:
	429	if (!model)
	430	return SR_ERR_ARG;
	431	*data = build_tuples(model->vdivs, model->num_vdivs);
	432	break;
e3b83c5e SS	433	default:
	434	return SR_ERR_NA;
	435	}
3f2c7c94 SS	436	return SR_OK;
3f2c7c94 SS	437	}
e3b83c5e	438
3f2c7c94 SS	439	SR_PRIV int lecroy_xstream_request_data(const struct sr_dev_inst *sdi)
	440	{
	441	char command[MAX_COMMAND_SIZE];
	442	struct sr_channel *ch;
	443	struct dev_context *devc;
	444
	445	devc = sdi->priv;
	446
	447	ch = devc->current_channel->data;
	448
	449	if (ch->type != SR_CHANNEL_ANALOG)
	450	return SR_ERR;
	451
	452	g_snprintf(command, sizeof(command),
ea257cdc	453	"COMM_FORMAT DEF9,WORD,BIN;C%d:WAVEFORM?", ch->index + 1);
3f2c7c94 SS	454	return sr_scpi_send(sdi->conn, command);
	455	}
	456
6d13a46c	457	static int setup_channels(const struct sr_dev_inst *sdi)
3f2c7c94 SS	458	{
	459	GSList *l;
	460	gboolean setup_changed;
	461	char command[MAX_COMMAND_SIZE];
	462	struct scope_state *state;
	463	struct sr_channel *ch;
	464	struct dev_context *devc;
	465	struct sr_scpi_dev_inst *scpi;
	466
	467	devc = sdi->priv;
	468	scpi = sdi->conn;
	469	state = devc->model_state;
	470	setup_changed = FALSE;
	471
	472	for (l = sdi->channels; l; l = l->next) {
	473	ch = l->data;
	474	switch (ch->type) {
	475	case SR_CHANNEL_ANALOG:
	476	if (ch->enabled == state->analog_channels[ch->index].state)
	477	break;
	478	g_snprintf(command, sizeof(command), "C%d:TRACE %s",
ea257cdc	479	ch->index + 1, ch->enabled ? "ON" : "OFF");
3f2c7c94 SS	480
	481	if (sr_scpi_send(scpi, command) != SR_OK)
	482	return SR_ERR;
	483	state->analog_channels[ch->index].state = ch->enabled;
	484	setup_changed = TRUE;
	485	break;
	486	default:
	487	return SR_ERR;
	488	}
	489	}
	490
	491	if (setup_changed && lecroy_xstream_update_sample_rate(sdi) != SR_OK)
	492	return SR_ERR;
	493
	494	return SR_OK;
e3b83c5e SS	495	}
	496
	497	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	498	{
3f2c7c94 SS	499	GSList *l;
	500	struct sr_channel *ch;
	501	struct dev_context *devc;
	502	int ret;
	503	struct sr_scpi_dev_inst *scpi;
	504
3f2c7c94 SS	505	devc = sdi->priv;
	506	scpi = sdi->conn;
	507	/* Preset empty results. */
	508	g_slist_free(devc->enabled_channels);
	509	devc->enabled_channels = NULL;
	510
	511	/*
	512	* Contruct the list of enabled channels. Determine the highest
	513	* number of digital pods involved in the acquisition.
	514	*/
	515
	516	for (l = sdi->channels; l; l = l->next) {
	517	ch = l->data;
	518	if (!ch->enabled)
	519	continue;
	520	/* Only add a single digital channel per group (pod). */
	521	devc->enabled_channels = g_slist_append(
	522	devc->enabled_channels, ch);
	523	}
e3b83c5e	524
3f2c7c94 SS	525	if (!devc->enabled_channels)
	526	return SR_ERR;
	527
	528	/*
	529	* Configure the analog channels and the
	530	* corresponding digital pods.
	531	*/
6d13a46c	532	if (setup_channels(sdi) != SR_OK) {
3f2c7c94 SS	533	sr_err("Failed to setup channel configuration!");
	534	ret = SR_ERR;
	535	goto free_enabled;
	536	}
	537
	538	/*
	539	* Start acquisition on the first enabled channel. The
	540	* receive routine will continue driving the acquisition.
	541	*/
	542	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
	543	lecroy_xstream_receive_data, (void *)sdi);
	544
	545	std_session_send_df_header(sdi);
	546
	547	devc->current_channel = devc->enabled_channels;
	548
	549	return lecroy_xstream_request_data(sdi);
	550
	551	free_enabled:
	552	g_slist_free(devc->enabled_channels);
	553	devc->enabled_channels = NULL;
ea257cdc	554
3f2c7c94	555	return ret;
e3b83c5e SS	556	}
	557
	558	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	559	{
3f2c7c94 SS	560	struct dev_context *devc;
	561	struct sr_scpi_dev_inst *scpi;
	562
	563	std_session_send_df_end(sdi);
	564
3f2c7c94 SS	565	devc = sdi->priv;
	566
	567	devc->num_frames = 0;
	568	g_slist_free(devc->enabled_channels);
	569	devc->enabled_channels = NULL;
	570	scpi = sdi->conn;
	571	sr_scpi_source_remove(sdi->session, scpi);
e3b83c5e SS	572
	573	return SR_OK;
	574	}
	575
3f2c7c94	576	static struct sr_dev_driver lecroy_xstream_driver_info = {
e3b83c5e	577	.name = "lecroy-xstream",
bb08570f	578	.longname = "LeCroy X-Stream",
e3b83c5e SS	579	.api_version = 1,
	580	.init = std_init,
	581	.cleanup = std_cleanup,
	582	.scan = scan,
	583	.dev_list = std_dev_list,
	584	.dev_clear = dev_clear,
	585	.config_get = config_get,
	586	.config_set = config_set,
	587	.config_list = config_list,
	588	.dev_open = dev_open,
	589	.dev_close = dev_close,
	590	.dev_acquisition_start = dev_acquisition_start,
	591	.dev_acquisition_stop = dev_acquisition_stop,
	592	.context = NULL,
	593	};
e3b83c5e	594	SR_REGISTER_DEV_DRIVER(lecroy_xstream_driver_info);