[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 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 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 = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
		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 = std_gvar_tuple_rational(model->timebases, model->num_timebases);
		break;
	case SR_CONF_VDIV:
		if (!model)
			return SR_ERR_ARG;
		*data = std_gvar_tuple_rational(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 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
	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);
	107	sr_dev_inst_free(sdi);
	108	g_free(devc);
	109
	110	return NULL;
	111	}
	112
	113	static GSList scan(struct sr_dev_driver di, GSList *options)
	114	{
	115	return sr_scpi_scan(di->context, options, probe_serial_device);
	116	}
	117
	118	static void clear_helper(struct dev_context *devc)
	119	{
	120	lecroy_xstream_state_free(devc->model_state);
	121	g_free(devc->analog_groups);
	122	}
	123
	124	static int dev_clear(const struct sr_dev_driver *di)
	125	{
	126	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
	127	}
	128
	129	static int dev_open(struct sr_dev_inst *sdi)
	130	{
	131	if (sr_scpi_open(sdi->conn) != SR_OK)
	132	return SR_ERR;
	133
	134	if (lecroy_xstream_state_get(sdi) != SR_OK)
	135	return SR_ERR;
	136
	137	return SR_OK;
	138	}
	139
	140	static int dev_close(struct sr_dev_inst *sdi)
	141	{
	142	return sr_scpi_close(sdi->conn);
	143	}
	144
	145	static int config_get(uint32_t key, GVariant **data,
	146	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	147	{
	148	unsigned int i;
	149	struct dev_context *devc;
	150	const struct scope_config *model;
	151	struct scope_state *state;
	152
	153	if (!sdi)
	154	return SR_ERR_ARG;
	155
	156	devc = sdi->priv;
	157
	158	model = devc->model_config;
	159	state = devc->model_state;
	160	*data = NULL;
	161
	162	switch (key) {
	163	case SR_CONF_NUM_HDIV:
	164	*data = g_variant_new_int32(model->num_xdivs);
	165	break;
	166	case SR_CONF_TIMEBASE:
	167	*data = g_variant_new("(tt)",
	168	model->timebases[state->timebase].p,
	169	model->timebases[state->timebase].q);
	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);
	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)",
	183	model->vdivs[state->analog_channels[i].vdiv].p,
	184	model->vdivs[state->analog_channels[i].vdiv].q);
	185	}
	186	break;
	187	case SR_CONF_TRIGGER_SOURCE:
	188	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	189	break;
	190	case SR_CONF_TRIGGER_SLOPE:
	191	data = g_variant_new_string((model->trigger_slopes)[state->trigger_slope]);
	192	break;
	193	case SR_CONF_HORIZ_TRIGGERPOS:
	194	*data = g_variant_new_double(state->horiz_triggerpos);
	195	break;
	196	case SR_CONF_COUPLING:
	197	for (i = 0; i < model->analog_channels; i++) {
	198	if (cg != devc->analog_groups[i])
	199	continue;
	200	data = g_variant_new_string((model->coupling_options)[state->analog_channels[i].coupling]);
	201	}
	202	break;
	203	case SR_CONF_SAMPLERATE:
	204	*data = g_variant_new_uint64(state->sample_rate);
	205	break;
	206	case SR_CONF_ENABLED:
	207	*data = g_variant_new_boolean(FALSE);
	208	break;
	209	default:
	210	return SR_ERR_NA;
	211	}
	212
	213	return SR_OK;
	214	}
	215
	216	static int config_set(uint32_t key, GVariant *data,
	217	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	218	{
	219	int ret;
	220	unsigned int i, j;
	221	char command[MAX_COMMAND_SIZE];
	222	struct dev_context *devc;
	223	const struct scope_config *model;
	224	struct scope_state *state;
	225	const char *tmp;
	226	int64_t p;
	227	uint64_t q;
	228	double tmp_d;
	229	gboolean update_sample_rate;
	230
	231	if (!sdi)
	232	return SR_ERR_ARG;
	233
	234	devc = sdi->priv;
	235
	236	model = devc->model_config;
	237	state = devc->model_state;
	238	update_sample_rate = FALSE;
	239
	240	ret = SR_ERR_NA;
	241
	242	switch (key) {
	243	case SR_CONF_LIMIT_FRAMES:
	244	devc->frame_limit = g_variant_get_uint64(data);
	245	ret = SR_OK;
	246	break;
	247	case SR_CONF_TRIGGER_SOURCE:
	248	tmp = g_variant_get_string(data, NULL);
	249	for (i = 0; (*model->trigger_sources)[i]; i++) {
	250	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	251	continue;
	252	state->trigger_source = i;
	253	g_snprintf(command, sizeof(command),
	254	"SET TRIGGER SOURCE %s",
	255	(*model->trigger_sources)[i]);
	256
	257	ret = sr_scpi_send(sdi->conn, command);
	258	break;
	259	}
	260	break;
	261	case SR_CONF_VDIV:
	262	g_variant_get(data, "(tt)", &p, &q);
	263
	264	for (i = 0; i < model->num_vdivs; i++) {
	265	if (p != model->vdivs[i].p \|\| q != model->vdivs[i].q)
	266	continue;
	267	for (j = 1; j <= model->analog_channels; j++) {
	268	if (cg != devc->analog_groups[j - 1])
	269	continue;
	270	state->analog_channels[j - 1].vdiv = i;
	271	g_snprintf(command, sizeof(command),
	272	"C%d:VDIV %E", j, (float)p/q);
	273
	274	if (sr_scpi_send(sdi->conn, command) != SR_OK \|\|
	275	sr_scpi_get_opc(sdi->conn) != SR_OK)
	276	return SR_ERR;
	277
	278	break;
	279	}
	280
	281	ret = SR_OK;
	282	break;
	283	}
	284	break;
	285	case SR_CONF_TIMEBASE:
	286	g_variant_get(data, "(tt)", &p, &q);
	287
	288	for (i = 0; i < model->num_timebases; i++) {
	289	if (p != model->timebases[i].p \|\|
	290	q != model->timebases[i].q)
	291	continue;
	292	state->timebase = i;
	293	g_snprintf(command, sizeof(command),
	294	"TIME_DIV %E", (float)p/q);
	295
	296	ret = sr_scpi_send(sdi->conn, command);
	297	update_sample_rate = TRUE;
	298	break;
	299	}
	300	break;
	301	case SR_CONF_HORIZ_TRIGGERPOS:
	302	tmp_d = g_variant_get_double(data);
	303
	304	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	305	return SR_ERR;
	306
	307	state->horiz_triggerpos = tmp_d;
	308	tmp_d = -(tmp_d - 0.5) *
	309	((double)model->timebases[state->timebase].p /
	310	model->timebases[state->timebase].q)
	311	* model->num_xdivs;
	312
	313	g_snprintf(command, sizeof(command), "TRIG POS %e S", tmp_d);
	314
	315	ret = sr_scpi_send(sdi->conn, command);
	316	break;
	317	case SR_CONF_TRIGGER_SLOPE:
	318	tmp = g_variant_get_string(data, NULL);
	319	for (i = 0; (*model->trigger_slopes)[i]; i++) {
	320	if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0)
	321	continue;
	322	state->trigger_slope = i;
	323	g_snprintf(command, sizeof(command),
	324	"SET TRIGGER SLOPE %s",
	325	(*model->trigger_slopes)[i]);
	326
	327	ret = sr_scpi_send(sdi->conn, command);
	328	break;
	329	}
	330	break;
	331	case SR_CONF_COUPLING:
	332	tmp = g_variant_get_string(data, NULL);
	333
	334	for (i = 0; (*model->coupling_options)[i]; i++) {
	335	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	336	continue;
	337	for (j = 1; j <= model->analog_channels; j++) {
	338	if (cg != devc->analog_groups[j - 1])
	339	continue;
	340	state->analog_channels[j - 1].coupling = i;
	341
	342	g_snprintf(command, sizeof(command),
	343	"C%d:COUPLING %s", j, tmp);
	344
	345	if (sr_scpi_send(sdi->conn, command) != SR_OK \|\|
	346	sr_scpi_get_opc(sdi->conn) != SR_OK)
	347	return SR_ERR;
	348	break;
	349	}
	350
	351	ret = SR_OK;
	352	break;
	353	}
	354	break;
	355	default:
	356	ret = SR_ERR_NA;
	357	break;
	358	}
	359
	360	if (ret == SR_OK)
	361	ret = sr_scpi_get_opc(sdi->conn);
	362
	363	if (ret == SR_OK && update_sample_rate)
	364	ret = lecroy_xstream_update_sample_rate(sdi);
	365
	366	return ret;
	367	}
	368
	369	static int config_list(uint32_t key, GVariant **data,
	370	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	371	{
	372	struct dev_context *devc;
	373	const struct scope_config *model;
	374
	375	devc = (sdi) ? sdi->priv : NULL;
	376	model = (devc) ? devc->model_config : NULL;
	377
	378	switch (key) {
	379	case SR_CONF_SCAN_OPTIONS:
	380	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, NULL);
	381	case SR_CONF_DEVICE_OPTIONS:
	382	if (!cg)
	383	return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
	384	*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
	385	break;
	386	case SR_CONF_COUPLING:
	387	data = g_variant_new_strv(model->coupling_options,
	388	g_strv_length((char *)model->coupling_options));
	389	break;
	390	case SR_CONF_TRIGGER_SOURCE:
	391	if (!model)
	392	return SR_ERR_ARG;
	393	data = g_variant_new_strv(model->trigger_sources,
	394	g_strv_length((char *)model->trigger_sources));
	395	break;
	396	case SR_CONF_TRIGGER_SLOPE:
	397	if (!model)
	398	return SR_ERR_ARG;
	399	data = g_variant_new_strv(model->trigger_slopes,
	400	g_strv_length((char *)model->trigger_slopes));
	401	break;
	402	case SR_CONF_TIMEBASE:
	403	if (!model)
	404	return SR_ERR_ARG;
	405	*data = std_gvar_tuple_rational(model->timebases, model->num_timebases);
	406	break;
	407	case SR_CONF_VDIV:
	408	if (!model)
	409	return SR_ERR_ARG;
	410	*data = std_gvar_tuple_rational(model->vdivs, model->num_vdivs);
	411	break;
	412	default:
	413	return SR_ERR_NA;
	414	}
	415	return SR_OK;
	416	}
	417
	418	SR_PRIV int lecroy_xstream_request_data(const struct sr_dev_inst *sdi)
	419	{
	420	char command[MAX_COMMAND_SIZE];
	421	struct sr_channel *ch;
	422	struct dev_context *devc;
	423
	424	devc = sdi->priv;
	425
	426	ch = devc->current_channel->data;
	427
	428	if (ch->type != SR_CHANNEL_ANALOG)
	429	return SR_ERR;
	430
	431	g_snprintf(command, sizeof(command),
	432	"COMM_FORMAT DEF9,WORD,BIN;C%d:WAVEFORM?", ch->index + 1);
	433	return sr_scpi_send(sdi->conn, command);
	434	}
	435
	436	static int setup_channels(const struct sr_dev_inst *sdi)
	437	{
	438	GSList *l;
	439	gboolean setup_changed;
	440	char command[MAX_COMMAND_SIZE];
	441	struct scope_state *state;
	442	struct sr_channel *ch;
	443	struct dev_context *devc;
	444	struct sr_scpi_dev_inst *scpi;
	445
	446	devc = sdi->priv;
	447	scpi = sdi->conn;
	448	state = devc->model_state;
	449	setup_changed = FALSE;
	450
	451	for (l = sdi->channels; l; l = l->next) {
	452	ch = l->data;
	453	switch (ch->type) {
	454	case SR_CHANNEL_ANALOG:
	455	if (ch->enabled == state->analog_channels[ch->index].state)
	456	break;
	457	g_snprintf(command, sizeof(command), "C%d:TRACE %s",
	458	ch->index + 1, ch->enabled ? "ON" : "OFF");
	459
	460	if (sr_scpi_send(scpi, command) != SR_OK)
	461	return SR_ERR;
	462	state->analog_channels[ch->index].state = ch->enabled;
	463	setup_changed = TRUE;
	464	break;
	465	default:
	466	return SR_ERR;
	467	}
	468	}
	469
	470	if (setup_changed && lecroy_xstream_update_sample_rate(sdi) != SR_OK)
	471	return SR_ERR;
	472
	473	return SR_OK;
	474	}
	475
	476	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	477	{
	478	GSList *l;
	479	struct sr_channel *ch;
	480	struct dev_context *devc;
	481	int ret;
	482	struct sr_scpi_dev_inst *scpi;
	483
	484	devc = sdi->priv;
	485	scpi = sdi->conn;
	486
	487	/* Preset empty results. */
	488	g_slist_free(devc->enabled_channels);
	489	devc->enabled_channels = NULL;
	490
	491	/*
	492	* Contruct the list of enabled channels. Determine the highest
	493	* number of digital pods involved in the acquisition.
	494	*/
	495
	496	for (l = sdi->channels; l; l = l->next) {
	497	ch = l->data;
	498	if (!ch->enabled)
	499	continue;
	500	/* Only add a single digital channel per group (pod). */
	501	devc->enabled_channels = g_slist_append(
	502	devc->enabled_channels, ch);
	503	}
	504
	505	if (!devc->enabled_channels)
	506	return SR_ERR;
	507
	508	/*
	509	* Configure the analog channels and the
	510	* corresponding digital pods.
	511	*/
	512	if (setup_channels(sdi) != SR_OK) {
	513	sr_err("Failed to setup channel configuration!");
	514	ret = SR_ERR;
	515	goto free_enabled;
	516	}
	517
	518	/*
	519	* Start acquisition on the first enabled channel. The
	520	* receive routine will continue driving the acquisition.
	521	*/
	522	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
	523	lecroy_xstream_receive_data, (void *)sdi);
	524
	525	std_session_send_df_header(sdi);
	526
	527	devc->current_channel = devc->enabled_channels;
	528
	529	return lecroy_xstream_request_data(sdi);
	530
	531	free_enabled:
	532	g_slist_free(devc->enabled_channels);
	533	devc->enabled_channels = NULL;
	534
	535	return ret;
	536	}
	537
	538	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	539	{
	540	struct dev_context *devc;
	541	struct sr_scpi_dev_inst *scpi;
	542
	543	std_session_send_df_end(sdi);
	544
	545	devc = sdi->priv;
	546
	547	devc->num_frames = 0;
	548	g_slist_free(devc->enabled_channels);
	549	devc->enabled_channels = NULL;
	550	scpi = sdi->conn;
	551	sr_scpi_source_remove(sdi->session, scpi);
	552
	553	return SR_OK;
	554	}
	555
	556	static struct sr_dev_driver lecroy_xstream_driver_info = {
	557	.name = "lecroy-xstream",
	558	.longname = "LeCroy X-Stream",
	559	.api_version = 1,
	560	.init = std_init,
	561	.cleanup = std_cleanup,
	562	.scan = scan,
	563	.dev_list = std_dev_list,
	564	.dev_clear = dev_clear,
	565	.config_get = config_get,
	566	.config_set = config_set,
	567	.config_list = config_list,
	568	.dev_open = dev_open,
	569	.dev_close = dev_close,
	570	.dev_acquisition_start = dev_acquisition_start,
	571	.dev_acquisition_stop = dev_acquisition_stop,
	572	.context = NULL,
	573	};
	574	SR_REGISTER_DEV_DRIVER(lecroy_xstream_driver_info);