[libsigrok.git] / src / hardware / yokogawa-dlm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
 * Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com>
 *
 * 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 <stdlib.h>
#include "protocol.h"

SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info;
static struct sr_dev_driver *di = &yokogawa_dlm_driver_info;

static char *MANUFACTURER_ID = "YOKOGAWA";
static char *MANUFACTURER_NAME = "Yokogawa";

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

enum {
	CG_INVALID = -1,
	CG_NONE,
	CG_ANALOG,
	CG_DIGITAL,
};

static int init(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static struct sr_dev_inst *probe_usbtmc_device(struct sr_scpi_dev_inst *scpi)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_scpi_hw_info *hw_info;
	char *model_name;
	int model_index;

	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 (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
		goto fail;

	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
		goto fail;

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_ACTIVE;
	sdi->vendor = g_strdup(MANUFACTURER_NAME);
	sdi->model = g_strdup(model_name);
	sdi->version = g_strdup(hw_info->firmware_version);

	sdi->serial_num = g_strdup(hw_info->serial_number);

	sr_scpi_hw_info_free(hw_info);
	hw_info = NULL;

	devc = g_malloc0(sizeof(struct dev_context));

	sdi->driver = di;
	sdi->priv = devc;
	sdi->inst_type = SR_INST_SCPI;
	sdi->conn = scpi;

	if (dlm_device_init(sdi, model_index) != SR_OK)
		goto fail;

	sr_scpi_close(sdi->conn);

	sdi->status = SR_ST_INACTIVE;
	return sdi;

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

	return NULL;
}

static GSList *scan(GSList *options)
{
	return sr_scpi_scan(di->priv, options, probe_usbtmc_device);
}

static GSList *dev_list(void)
{
	return ((struct drv_context *)(di->priv))->instances;
}

static void clear_helper(void *priv)
{
	struct dev_context *devc;

	devc = priv;

	dlm_scope_state_destroy(devc->model_state);

	g_free(devc->analog_groups);
	g_free(devc->digital_groups);
	g_free(devc);
}

static int dev_clear(void)
{
	return std_dev_clear(di, clear_helper);
}

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

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

	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	if (sdi->status == SR_ST_INACTIVE)
		return SR_OK;

	sr_scpi_close(sdi->conn);

	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static int cleanup(void)
{
	dev_clear();

	return SR_OK;
}

/**
 * Check which category a given channel group belongs to.
 *
 * @param devc Our internal device context.
 * @param cg   The channel group to check.
 *
 * @retval CG_NONE    cg is NULL
 * @retval CG_ANALOG  cg is an analog group
 * @retval CG_DIGITAL cg is a digital group
 * @retval CG_INVALID cg is something else
 */
static int check_channel_group(struct dev_context *devc,
			const struct sr_channel_group *cg)
{
	unsigned int i;
	struct scope_config *model;

	model = devc->model_config;

	if (!cg)
		return CG_NONE;

	for (i = 0; i < model->analog_channels; ++i)
		if (cg == devc->analog_groups[i])
			return CG_ANALOG;

	for (i = 0; i < model->pods; ++i)
		if (cg == devc->digital_groups[i])
			return CG_DIGITAL;

	sr_err("Invalid channel group specified.");
	return CG_INVALID;
}

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

	if (!sdi || !(devc = sdi->priv))
		return SR_ERR_ARG;

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	ret = SR_ERR_NA;
	model = devc->model_config;
	state = devc->model_state;

	switch (key) {
	case SR_CONF_NUM_HDIV:
		*data = g_variant_new_int32(model->num_xdivs);
		ret = SR_OK;
		break;
	case SR_CONF_TIMEBASE:
		*data = g_variant_new("(tt)",
				(*model->timebases)[state->timebase][0],
				(*model->timebases)[state->timebase][1]);
		ret = SR_OK;
		break;
	case SR_CONF_NUM_VDIV:
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		} else if (cg_type == CG_ANALOG) {
				*data = g_variant_new_int32(model->num_ydivs);
				ret = SR_OK;
				break;
		} else {
			ret = SR_ERR_NA;
		}
		break;
	case SR_CONF_VDIV:
		ret = SR_ERR_NA;
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		} else if (cg_type != CG_ANALOG)
			break;

		for (i = 0; i < model->analog_channels; ++i) {
			if (cg != devc->analog_groups[i])
				continue;
			*data = g_variant_new("(tt)",
					(*model->vdivs)[state->analog_states[i].vdiv][0],
					(*model->vdivs)[state->analog_states[i].vdiv][1]);
			ret = SR_OK;
			break;
		}
		break;
	case SR_CONF_TRIGGER_SOURCE:
		*data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SLOPE:
		*data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]);
		ret = SR_OK;
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		*data = g_variant_new_double(state->horiz_triggerpos);
		ret = SR_OK;
		break;
	case SR_CONF_COUPLING:
		ret = SR_ERR_NA;
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		} else if (cg_type != CG_ANALOG)
			break;

		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_states[i].coupling]);
			ret = SR_OK;
			break;
		}
		break;
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(state->sample_rate);
		ret = SR_OK;
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static GVariant *build_tuples(const uint64_t (*array)[][2], 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][0]);
		rational[1] = g_variant_new_uint64((*array)[i][1]);

		/* 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, cg_type;
	unsigned int i, j;
	char float_str[30];
	struct dev_context *devc;
	struct scope_config *model;
	struct scope_state *state;
	const char *tmp;
	uint64_t p, q;
	double tmp_d;
	gboolean update_sample_rate;

	if (!sdi || !(devc = sdi->priv))
		return SR_ERR_ARG;

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	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;
			/* TODO: A and B trigger support possible? */
			ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
			break;
		}
		break;
	case SR_CONF_VDIV:
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		}

		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_states[j - 1].vdiv = i;
				g_ascii_formatd(float_str, sizeof(float_str),
						"%E", (float) p / q);
				if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != 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_ascii_formatd(float_str, sizeof(float_str),
					"%E", (float) p / q);
			ret = dlm_timebase_set(sdi->conn, float_str);
			update_sample_rate = TRUE;
			break;
		}
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		tmp_d = g_variant_get_double(data);

		/* TODO: Check if the calculation makes sense for the DLM. */
		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_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
		ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
		break;
	case SR_CONF_TRIGGER_SLOPE:
		tmp = g_variant_get_string(data, NULL);

		if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r'))
			return SR_ERR_ARG;

		/* Note: See dlm_trigger_slopes[] in protocol.c. */
		state->trigger_slope = (tmp[0] == 'r') ?
				SLOPE_POSITIVE : SLOPE_NEGATIVE;

		ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
		break;
	case SR_CONF_COUPLING:
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		}

		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_states[j-1].coupling = i;

				if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != 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 = dlm_sample_rate_query(sdi);

	return ret;
}

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

	if (sdi && (devc = sdi->priv)) {
		if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
			return SR_ERR;

		model = devc->model_config;
	}

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		if (cg_type == CG_NONE) {
			if (model)
				*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
					model->devopts, model->num_devopts, sizeof(uint32_t));
			else
				*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
					drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
		} else if (cg_type == CG_ANALOG) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				model->analog_devopts, model->num_analog_devopts, sizeof(uint32_t));
		} else {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				NULL, 0, sizeof(uint32_t));
		}
		break;
	case SR_CONF_COUPLING:
		if (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*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 (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*data = build_tuples(model->vdivs, model->num_vdivs);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dlm_check_channels(GSList *channels)
{
	GSList *l;
	struct sr_channel *ch;
	gboolean enabled_pod1, enabled_chan4;

	enabled_pod1 = enabled_chan4 = FALSE;

	/* Note: On the DLM2000, CH4 and Logic are shared. */
	/* TODO Handle non-DLM2000 models. */
	for (l = channels; l; l = l->next) {
		ch = l->data;
		switch (ch->type) {
		case SR_CHANNEL_ANALOG:
			if (ch->index == 3)
				enabled_chan4 = TRUE;
			break;
		case SR_CHANNEL_LOGIC:
			enabled_pod1 = TRUE;
			break;
		default:
			return SR_ERR;
		}
	}

	if (enabled_pod1 && enabled_chan4)
		return SR_ERR;

	return SR_OK;
}

static int dlm_setup_channels(const struct sr_dev_inst *sdi)
{
	GSList *l;
	unsigned int i;
	gboolean *pod_enabled, setup_changed;
	struct scope_state *state;
	struct scope_config *model;
	struct sr_channel *ch;
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

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

	pod_enabled = g_malloc0(sizeof(gboolean) * model->pods);

	for (l = sdi->channels; l; l = l->next) {
		ch = l->data;
		switch (ch->type) {
		case SR_CHANNEL_ANALOG:
			if (ch->enabled == state->analog_states[ch->index].state)
				break;

			if (dlm_analog_chan_state_set(scpi, ch->index + 1,
					ch->enabled) != SR_OK)
				return SR_ERR;

			state->analog_states[ch->index].state = ch->enabled;
			setup_changed = TRUE;
			break;
		case SR_CHANNEL_LOGIC:
			if (ch->enabled)
				pod_enabled[ch->index / 8] = TRUE;

			if (ch->enabled == state->digital_states[ch->index])
				break;

			if (dlm_digital_chan_state_set(scpi, ch->index + 1,
					ch->enabled) != SR_OK)
				return SR_ERR;

			state->digital_states[ch->index] = ch->enabled;
			setup_changed = TRUE;
			break;
		default:
			return SR_ERR;
		}
	}

	for (i = 1; i <= model->pods; ++i) {
		if (state->pod_states[i - 1] == pod_enabled[i - 1])
			continue;

		if (dlm_digital_pod_state_set(scpi, i,
				pod_enabled[i - 1]) != SR_OK)
			return SR_ERR;

		state->pod_states[i - 1] = pod_enabled[i - 1];
		setup_changed = TRUE;
	}

	g_free(pod_enabled);

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

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
	GSList *l;
	gboolean digital_added;
	struct sr_channel *ch;
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

	(void)cb_data;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

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

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

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

	if (!devc->enabled_channels)
		return SR_ERR;

	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
		sr_err("Invalid channel configuration specified!");
		return SR_ERR_NA;
	}

	if (dlm_setup_channels(sdi) != SR_OK) {
		sr_err("Failed to setup channel configuration!");
		return SR_ERR;
	}

	/* Request data for the first enabled channel. */
	devc->current_channel = devc->enabled_channels;
	dlm_channel_data_request(sdi);

	/* Call our callback when data comes in or after 5ms. */
	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
			dlm_data_receive, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	struct dev_context *devc;
	struct sr_datafeed_packet packet;

	(void)cb_data;

	packet.type = SR_DF_END;
	packet.payload = NULL;
	sr_session_send(sdi, &packet);

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	devc = sdi->priv;

	devc->num_frames = 0;
	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	sr_scpi_source_remove(sdi->session, sdi->conn);

	return SR_OK;
}

SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	.name = "yokogawa-dlm",
	.longname = "Yokogawa DL/DLM",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = 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,
	.priv = NULL,
};
Commit	Line	Data
10763937 SA	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net>
	5	* Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com>
	6	*
	7	* This program is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
	21	#include <stdlib.h>
	22	#include "protocol.h"
	23
8ab929d6 SA	24	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info;
	25	static struct sr_dev_driver *di = &yokogawa_dlm_driver_info;
	26
	27	static char *MANUFACTURER_ID = "YOKOGAWA";
	28	static char *MANUFACTURER_NAME = "Yokogawa";
	29
cf0280fa AJ	30	static const uint32_t drvopts[] = {
	31	SR_CONF_LOGIC_ANALYZER,
	32	SR_CONF_OSCILLOSCOPE,
	33	};
	34
8ab929d6 SA	35	enum {
	36	CG_INVALID = -1,
	37	CG_NONE,
	38	CG_ANALOG,
	39	CG_DIGITAL,
	40	};
	41
	42	static int init(struct sr_context *sr_ctx)
	43	{
	44	return std_init(sr_ctx, di, LOG_PREFIX);
	45	}
	46
	47	static struct sr_dev_inst probe_usbtmc_device(struct sr_scpi_dev_inst scpi)
	48	{
	49	struct sr_dev_inst *sdi;
	50	struct dev_context *devc;
	51	struct sr_scpi_hw_info *hw_info;
	52	char *model_name;
	53	int model_index;
	54
	55	sdi = NULL;
	56	devc = NULL;
	57	hw_info = NULL;
	58
	59	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	60	sr_info("Couldn't get IDN response.");
	61	goto fail;
	62	}
	63
	64	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
	65	goto fail;
	66
	67	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
	68	goto fail;
	69
aac29cc1	70	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	71	sdi->status = SR_ST_ACTIVE;
	72	sdi->vendor = g_strdup(MANUFACTURER_NAME);
	73	sdi->model = g_strdup(model_name);
	74	sdi->version = g_strdup(hw_info->firmware_version);
8ab929d6	75
d1314831 SA	76	sdi->serial_num = g_strdup(hw_info->serial_number);
d1314831 SA	77
8ab929d6 SA	78	sr_scpi_hw_info_free(hw_info);
	79	hw_info = NULL;
	80
ac10a927	81	devc = g_malloc0(sizeof(struct dev_context));
8ab929d6 SA	82
	83	sdi->driver = di;
	84	sdi->priv = devc;
	85	sdi->inst_type = SR_INST_SCPI;
	86	sdi->conn = scpi;
	87
	88	if (dlm_device_init(sdi, model_index) != SR_OK)
	89	goto fail;
	90
	91	sr_scpi_close(sdi->conn);
	92
	93	sdi->status = SR_ST_INACTIVE;
	94	return sdi;
	95
	96	fail:
	97	if (hw_info)
	98	sr_scpi_hw_info_free(hw_info);
	99	if (sdi)
	100	sr_dev_inst_free(sdi);
	101	if (devc)
	102	g_free(devc);
	103
	104	return NULL;
	105	}
	106
	107	static GSList scan(GSList options)
	108	{
	109	return sr_scpi_scan(di->priv, options, probe_usbtmc_device);
	110	}
	111
	112	static GSList *dev_list(void)
	113	{
	114	return ((struct drv_context *)(di->priv))->instances;
	115	}
	116
	117	static void clear_helper(void *priv)
	118	{
	119	struct dev_context *devc;
	120
	121	devc = priv;
	122
	123	dlm_scope_state_destroy(devc->model_state);
	124
	125	g_free(devc->analog_groups);
	126	g_free(devc->digital_groups);
	127	g_free(devc);
	128	}
	129
	130	static int dev_clear(void)
	131	{
	132	return std_dev_clear(di, clear_helper);
	133	}
	134
	135	static int dev_open(struct sr_dev_inst *sdi)
	136	{
	137	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	138	return SR_ERR;
	139
	140	if (dlm_scope_state_query(sdi) != SR_OK)
	141	return SR_ERR;
	142
	143	sdi->status = SR_ST_ACTIVE;
	144
	145	return SR_OK;
146	}
147
148	static int dev_close(struct sr_dev_inst *sdi)
149	{
150	if (sdi->status == SR_ST_INACTIVE)
151	return SR_OK;
152
153	sr_scpi_close(sdi->conn);
154
155	sdi->status = SR_ST_INACTIVE;
156
157	return SR_OK;
158	}
159
160	static int cleanup(void)
161	{
162	dev_clear();
163
164	return SR_OK;
165	}
166
167	/**
168	* Check which category a given channel group belongs to.
169	*
170	* @param devc Our internal device context.
171	* @param cg The channel group to check.
172	*
173	* @retval CG_NONE cg is NULL
174	* @retval CG_ANALOG cg is an analog group
175	* @retval CG_DIGITAL cg is a digital group
176	* @retval CG_INVALID cg is something else
177	*/
178	static int check_channel_group(struct dev_context *devc,
ac10a927	179	const struct sr_channel_group *cg)
8ab929d6 SA	180	{
	181	unsigned int i;
	182	struct scope_config *model;
	183
	184	model = devc->model_config;
	185
	186	if (!cg)
	187	return CG_NONE;
	188
	189	for (i = 0; i < model->analog_channels; ++i)
	190	if (cg == devc->analog_groups[i])
	191	return CG_ANALOG;
	192
	193	for (i = 0; i < model->pods; ++i)
	194	if (cg == devc->digital_groups[i])
	195	return CG_DIGITAL;
	196
	197	sr_err("Invalid channel group specified.");
	198	return CG_INVALID;
	199	}
	200
584560f1	201	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	202	const struct sr_channel_group *cg)
8ab929d6 SA	203	{
	204	int ret, cg_type;
	205	unsigned int i;
	206	struct dev_context *devc;
	207	struct scope_config *model;
	208	struct scope_state *state;
	209
	210	if (!sdi \|\| !(devc = sdi->priv))
	211	return SR_ERR_ARG;
	212
	213	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	214	return SR_ERR;
	215
	216	ret = SR_ERR_NA;
	217	model = devc->model_config;
	218	state = devc->model_state;
	219
	220	switch (key) {
bf622e6d	221	case SR_CONF_NUM_HDIV:
8ab929d6 SA	222	*data = g_variant_new_int32(model->num_xdivs);
	223	ret = SR_OK;
	224	break;
	225	case SR_CONF_TIMEBASE:
	226	*data = g_variant_new("(tt)",
ac10a927 SA	227	(*model->timebases)[state->timebase][0],
ac10a927 SA	228	(*model->timebases)[state->timebase][1]);
8ab929d6 SA	229	ret = SR_OK;
	230	break;
	231	case SR_CONF_NUM_VDIV:
	232	if (cg_type == CG_NONE) {
	233	sr_err("No channel group specified.");
	234	return SR_ERR_CHANNEL_GROUP;
	235	} else if (cg_type == CG_ANALOG) {
	236	*data = g_variant_new_int32(model->num_ydivs);
	237	ret = SR_OK;
	238	break;
	239	} else {
	240	ret = SR_ERR_NA;
	241	}
	242	break;
	243	case SR_CONF_VDIV:
	244	ret = SR_ERR_NA;
	245	if (cg_type == CG_NONE) {
	246	sr_err("No channel group specified.");
	247	return SR_ERR_CHANNEL_GROUP;
	248	} else if (cg_type != CG_ANALOG)
	249	break;
	250
	251	for (i = 0; i < model->analog_channels; ++i) {
	252	if (cg != devc->analog_groups[i])
	253	continue;
	254	*data = g_variant_new("(tt)",
ac10a927 SA	255	(*model->vdivs)[state->analog_states[i].vdiv][0],
ac10a927 SA	256	(*model->vdivs)[state->analog_states[i].vdiv][1]);
8ab929d6 SA	257	ret = SR_OK;
	258	break;
	259	}
	260	break;
	261	case SR_CONF_TRIGGER_SOURCE:
	262	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	263	ret = SR_OK;
	264	break;
	265	case SR_CONF_TRIGGER_SLOPE:
	266	data = g_variant_new_string((model->trigger_slopes)[state->trigger_slope]);
	267	ret = SR_OK;
	268	break;
	269	case SR_CONF_HORIZ_TRIGGERPOS:
	270	*data = g_variant_new_double(state->horiz_triggerpos);
	271	ret = SR_OK;
	272	break;
	273	case SR_CONF_COUPLING:
	274	ret = SR_ERR_NA;
	275	if (cg_type == CG_NONE) {
	276	sr_err("No channel group specified.");
	277	return SR_ERR_CHANNEL_GROUP;
	278	} else if (cg_type != CG_ANALOG)
	279	break;
	280
	281	for (i = 0; i < model->analog_channels; ++i) {
	282	if (cg != devc->analog_groups[i])
	283	continue;
	284	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	285	ret = SR_OK;
	286	break;
	287	}
	288	break;
	289	case SR_CONF_SAMPLERATE:
	290	*data = g_variant_new_uint64(state->sample_rate);
	291	ret = SR_OK;
	292	break;
	293	default:
	294	ret = SR_ERR_NA;
	295	}
	296
	297	return ret;
	298	}
	299
	300	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	301	{
	302	unsigned int i;
	303	GVariant *rational[2];
	304	GVariantBuilder gvb;
	305
	306	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	307
	308	for (i = 0; i < n; i++) {
	309	rational[0] = g_variant_new_uint64((*array)[i][0]);
	310	rational[1] = g_variant_new_uint64((*array)[i][1]);
	311
	312	/* FIXME: Valgrind reports a memory leak here. */
	313	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	314	}
	315
	316	return g_variant_builder_end(&gvb);
	317	}
	318
584560f1	319	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	320	const struct sr_channel_group *cg)
8ab929d6 SA	321	{
	322	int ret, cg_type;
	323	unsigned int i, j;
	324	char float_str[30];
	325	struct dev_context *devc;
	326	struct scope_config *model;
	327	struct scope_state *state;
	328	const char *tmp;
	329	uint64_t p, q;
	330	double tmp_d;
	331	gboolean update_sample_rate;
	332
	333	if (!sdi \|\| !(devc = sdi->priv))
	334	return SR_ERR_ARG;
	335
	336	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	337	return SR_ERR;
	338
	339	model = devc->model_config;
	340	state = devc->model_state;
	341	update_sample_rate = FALSE;
	342
	343	ret = SR_ERR_NA;
	344
	345	switch (key) {
	346	case SR_CONF_LIMIT_FRAMES:
	347	devc->frame_limit = g_variant_get_uint64(data);
	348	ret = SR_OK;
	349	break;
	350	case SR_CONF_TRIGGER_SOURCE:
	351	tmp = g_variant_get_string(data, NULL);
	352	for (i = 0; (*model->trigger_sources)[i]; i++) {
	353	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	354	continue;
	355	state->trigger_source = i;
	356	/* TODO: A and B trigger support possible? */
	357	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	358	break;
	359	}
	360	break;
	361	case SR_CONF_VDIV:
	362	if (cg_type == CG_NONE) {
	363	sr_err("No channel group specified.");
	364	return SR_ERR_CHANNEL_GROUP;
	365	}
	366
	367	g_variant_get(data, "(tt)", &p, &q);
	368
	369	for (i = 0; i < model->num_vdivs; i++) {
	370	if (p != (*model->vdivs)[i][0] \|\|
ac10a927	371	q != (*model->vdivs)[i][1])
8ab929d6 SA	372	continue;
	373	for (j = 1; j <= model->analog_channels; ++j) {
	374	if (cg != devc->analog_groups[j - 1])
	375	continue;
	376	state->analog_states[j - 1].vdiv = i;
	377	g_ascii_formatd(float_str, sizeof(float_str),
	378	"%E", (float) p / q);
	379	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	380	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	381	return SR_ERR;
	382
	383	break;
	384	}
	385
	386	ret = SR_OK;
	387	break;
	388	}
	389	break;
	390	case SR_CONF_TIMEBASE:
	391	g_variant_get(data, "(tt)", &p, &q);
	392
	393	for (i = 0; i < model->num_timebases; i++) {
	394	if (p != (*model->timebases)[i][0] \|\|
ac10a927	395	q != (*model->timebases)[i][1])
8ab929d6 SA	396	continue;
	397	state->timebase = i;
	398	g_ascii_formatd(float_str, sizeof(float_str),
	399	"%E", (float) p / q);
	400	ret = dlm_timebase_set(sdi->conn, float_str);
	401	update_sample_rate = TRUE;
	402	break;
	403	}
	404	break;
	405	case SR_CONF_HORIZ_TRIGGERPOS:
	406	tmp_d = g_variant_get_double(data);
	407
	408	/* TODO: Check if the calculation makes sense for the DLM. */
	409	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	410	return SR_ERR;
	411
	412	state->horiz_triggerpos = tmp_d;
	413	tmp_d = -(tmp_d - 0.5) *
ac10a927 SA	414	((double) (*model->timebases)[state->timebase][0] /
	415	(*model->timebases)[state->timebase][1])
	416	* model->num_xdivs;
8ab929d6 SA	417
	418	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	419	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	420	break;
	421	case SR_CONF_TRIGGER_SLOPE:
	422	tmp = g_variant_get_string(data, NULL);
	423
	424	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	425	return SR_ERR_ARG;
	426
	427	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	428	state->trigger_slope = (tmp[0] == 'r') ?
	429	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	430
	431	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	432	break;
	433	case SR_CONF_COUPLING:
	434	if (cg_type == CG_NONE) {
	435	sr_err("No channel group specified.");
	436	return SR_ERR_CHANNEL_GROUP;
	437	}
	438
	439	tmp = g_variant_get_string(data, NULL);
	440
	441	for (i = 0; (*model->coupling_options)[i]; i++) {
	442	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	443	continue;
	444	for (j = 1; j <= model->analog_channels; ++j) {
	445	if (cg != devc->analog_groups[j - 1])
	446	continue;
	447	state->analog_states[j-1].coupling = i;
	448
	449	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	450	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	451	return SR_ERR;
	452	break;
	453	}
	454
	455	ret = SR_OK;
	456	break;
	457	}
	458	break;
	459	default:
	460	ret = SR_ERR_NA;
	461	break;
	462	}
	463
	464	if (ret == SR_OK)
	465	ret = sr_scpi_get_opc(sdi->conn);
	466
	467	if (ret == SR_OK && update_sample_rate)
	468	ret = dlm_sample_rate_query(sdi);
	469
	470	return ret;
	471	}
	472
584560f1	473	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	474	const struct sr_channel_group *cg)
8ab929d6	475	{
cf0280fa AJ	476	int cg_type = CG_NONE;
	477	struct dev_context *devc = NULL;
	478	struct scope_config *model = NULL;
8ab929d6	479
cf0280fa AJ	480	if (sdi && (devc = sdi->priv)) {
	481	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	482	return SR_ERR;
8ab929d6	483
cf0280fa AJ	484	model = devc->model_config;
cf0280fa AJ	485	}
8ab929d6 SA	486
8ab929d6 SA	487	switch (key) {
8ab929d6 SA	488	case SR_CONF_DEVICE_OPTIONS:
8ab929d6 SA	489	if (cg_type == CG_NONE) {
cf0280fa AJ	490	if (model)
	491	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	492	model->devopts, model->num_devopts, sizeof(uint32_t));
	493	else
	494	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	495	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
8ab929d6	496	} else if (cg_type == CG_ANALOG) {
584560f1	497	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
af945a66	498	model->analog_devopts, model->num_analog_devopts, sizeof(uint32_t));
8ab929d6	499	} else {
584560f1 BV	500	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	501	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	502	}
	503	break;
	504	case SR_CONF_COUPLING:
	505	if (cg_type == CG_NONE)
	506	return SR_ERR_CHANNEL_GROUP;
	507	data = g_variant_new_strv(model->coupling_options,
ac10a927	508	g_strv_length((char *)model->coupling_options));
8ab929d6 SA	509	break;
8ab929d6 SA	510	case SR_CONF_TRIGGER_SOURCE:
cf0280fa AJ	511	if (!model)
cf0280fa AJ	512	return SR_ERR_ARG;
8ab929d6	513	data = g_variant_new_strv(model->trigger_sources,
ac10a927	514	g_strv_length((char *)model->trigger_sources));
8ab929d6 SA	515	break;
8ab929d6 SA	516	case SR_CONF_TRIGGER_SLOPE:
cf0280fa AJ	517	if (!model)
cf0280fa AJ	518	return SR_ERR_ARG;
8ab929d6	519	data = g_variant_new_strv(model->trigger_slopes,
ac10a927	520	g_strv_length((char *)model->trigger_slopes));
8ab929d6 SA	521	break;
8ab929d6 SA	522	case SR_CONF_TIMEBASE:
cf0280fa AJ	523	if (!model)
cf0280fa AJ	524	return SR_ERR_ARG;
8ab929d6 SA	525	*data = build_tuples(model->timebases, model->num_timebases);
	526	break;
	527	case SR_CONF_VDIV:
	528	if (cg_type == CG_NONE)
	529	return SR_ERR_CHANNEL_GROUP;
	530	*data = build_tuples(model->vdivs, model->num_vdivs);
	531	break;
	532	default:
	533	return SR_ERR_NA;
	534	}
	535
	536	return SR_OK;
	537	}
	538
	539	static int dlm_check_channels(GSList *channels)
	540	{
	541	GSList *l;
	542	struct sr_channel *ch;
	543	gboolean enabled_pod1, enabled_chan4;
	544
	545	enabled_pod1 = enabled_chan4 = FALSE;
	546
	547	/* Note: On the DLM2000, CH4 and Logic are shared. */
	548	/* TODO Handle non-DLM2000 models. */
	549	for (l = channels; l; l = l->next) {
	550	ch = l->data;
	551	switch (ch->type) {
	552	case SR_CHANNEL_ANALOG:
	553	if (ch->index == 3)
	554	enabled_chan4 = TRUE;
	555	break;
	556	case SR_CHANNEL_LOGIC:
	557	enabled_pod1 = TRUE;
	558	break;
	559	default:
	560	return SR_ERR;
	561	}
	562	}
	563
	564	if (enabled_pod1 && enabled_chan4)
	565	return SR_ERR;
	566
	567	return SR_OK;
	568	}
	569
	570	static int dlm_setup_channels(const struct sr_dev_inst *sdi)
	571	{
	572	GSList *l;
	573	unsigned int i;
	574	gboolean *pod_enabled, setup_changed;
	575	struct scope_state *state;
	576	struct scope_config *model;
	577	struct sr_channel *ch;
	578	struct dev_context *devc;
	579	struct sr_scpi_dev_inst *scpi;
	580
	581	devc = sdi->priv;
	582	scpi = sdi->conn;
	583	state = devc->model_state;
	584	model = devc->model_config;
	585	setup_changed = FALSE;
	586
ac10a927	587	pod_enabled = g_malloc0(sizeof(gboolean) * model->pods);
8ab929d6 SA	588
	589	for (l = sdi->channels; l; l = l->next) {
	590	ch = l->data;
	591	switch (ch->type) {
	592	case SR_CHANNEL_ANALOG:
	593	if (ch->enabled == state->analog_states[ch->index].state)
	594	break;
	595
	596	if (dlm_analog_chan_state_set(scpi, ch->index + 1,
ac10a927	597	ch->enabled) != SR_OK)
8ab929d6 SA	598	return SR_ERR;
	599
	600	state->analog_states[ch->index].state = ch->enabled;
	601	setup_changed = TRUE;
	602	break;
	603	case SR_CHANNEL_LOGIC:
	604	if (ch->enabled)
	605	pod_enabled[ch->index / 8] = TRUE;
	606
	607	if (ch->enabled == state->digital_states[ch->index])
	608	break;
	609
	610	if (dlm_digital_chan_state_set(scpi, ch->index + 1,
ac10a927	611	ch->enabled) != SR_OK)
8ab929d6 SA	612	return SR_ERR;
	613
	614	state->digital_states[ch->index] = ch->enabled;
	615	setup_changed = TRUE;
	616	break;
	617	default:
	618	return SR_ERR;
	619	}
	620	}
	621
	622	for (i = 1; i <= model->pods; ++i) {
	623	if (state->pod_states[i - 1] == pod_enabled[i - 1])
	624	continue;
	625
	626	if (dlm_digital_pod_state_set(scpi, i,
ac10a927	627	pod_enabled[i - 1]) != SR_OK)
8ab929d6 SA	628	return SR_ERR;
	629
	630	state->pod_states[i - 1] = pod_enabled[i - 1];
	631	setup_changed = TRUE;
	632	}
	633
	634	g_free(pod_enabled);
	635
	636	if (setup_changed && dlm_sample_rate_query(sdi) != SR_OK)
	637	return SR_ERR;
	638
	639	return SR_OK;
	640	}
	641
	642	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	643	{
	644	GSList *l;
	645	gboolean digital_added;
	646	struct sr_channel *ch;
	647	struct dev_context *devc;
	648	struct sr_scpi_dev_inst *scpi;
	649
	650	(void)cb_data;
	651
ac10a927 SA	652	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	653	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	654
	655	scpi = sdi->conn;
	656	devc = sdi->priv;
	657	digital_added = FALSE;
	658
	659	g_slist_free(devc->enabled_channels);
	660	devc->enabled_channels = NULL;
	661
	662	for (l = sdi->channels; l; l = l->next) {
	663	ch = l->data;
	664	if (!ch->enabled)
	665	continue;
	666	/* Only add a single digital channel. */
	667	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	668	devc->enabled_channels = g_slist_append(
ac10a927 SA	669	devc->enabled_channels, ch);
	670	if (ch->type == SR_CHANNEL_LOGIC)
	671	digital_added = TRUE;
8ab929d6 SA	672	}
	673	}
	674
	675	if (!devc->enabled_channels)
	676	return SR_ERR;
	677
	678	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	679	sr_err("Invalid channel configuration specified!");
	680	return SR_ERR_NA;
	681	}
	682
	683	if (dlm_setup_channels(sdi) != SR_OK) {
	684	sr_err("Failed to setup channel configuration!");
	685	return SR_ERR;
	686	}
	687
af3487ec SA	688	/* Request data for the first enabled channel. */
	689	devc->current_channel = devc->enabled_channels;
	690	dlm_channel_data_request(sdi);
	691
0028d5a1 SA	692	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	693	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	694	dlm_data_receive, (void *)sdi);
	695
	696	return SR_OK;
	697	}
	698
	699	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	700	{
	701	struct dev_context *devc;
8ab929d6 SA	702	struct sr_datafeed_packet packet;
	703
	704	(void)cb_data;
	705
	706	packet.type = SR_DF_END;
	707	packet.payload = NULL;
	708	sr_session_send(sdi, &packet);
	709
	710	if (sdi->status != SR_ST_ACTIVE)
	711	return SR_ERR_DEV_CLOSED;
	712
	713	devc = sdi->priv;
	714
	715	devc->num_frames = 0;
	716	g_slist_free(devc->enabled_channels);
	717	devc->enabled_channels = NULL;
af3487ec SA	718
af3487ec SA	719	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	720
	721	return SR_OK;
	722	}
10763937 SA	723
	724	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	725	.name = "yokogawa-dlm",
ac10a927	726	.longname = "Yokogawa DL/DLM",
10763937	727	.api_version = 1,
8ab929d6 SA	728	.init = init,
	729	.cleanup = cleanup,
	730	.scan = scan,
	731	.dev_list = dev_list,
	732	.dev_clear = dev_clear,
	733	.config_get = config_get,
	734	.config_set = config_set,
	735	.config_list = config_list,
	736	.dev_open = dev_open,
	737	.dev_close = dev_close,
	738	.dev_acquisition_start = dev_acquisition_start,
	739	.dev_acquisition_stop = dev_acquisition_stop,
10763937 SA	740	.priv = NULL,
10763937 SA	741	};