[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 const char *MANUFACTURER_ID = "YOKOGAWA";
static const 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_dev_driver *di, 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 = &yokogawa_dlm_driver_info;
	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(struct sr_dev_driver *di, GSList *options)
{
	return sr_scpi_scan(di->priv, options, probe_usbtmc_device);
}

static GSList *dev_list(const struct sr_dev_driver *di)
{
	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(const struct sr_dev_driver *di)
{
	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(const struct sr_dev_driver *di)
{
	dev_clear(di);

	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;
	const 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;
	const 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;
	const struct scope_config *model;
	struct scope_state *state;
	const char *tmp;
	uint64_t p, q;
	double tmp_d;
	gboolean update_sample_rate;

	if (!sdi || !(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;
	const 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;
	const 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	24	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info;
8ab929d6	25
329733d9 UH	26	static const char *MANUFACTURER_ID = "YOKOGAWA";
329733d9 UH	27	static const char *MANUFACTURER_NAME = "Yokogawa";
8ab929d6	28
cf0280fa AJ	29	static const uint32_t drvopts[] = {
	30	SR_CONF_LOGIC_ANALYZER,
	31	SR_CONF_OSCILLOSCOPE,
	32	};
	33
8ab929d6 SA	34	enum {
	35	CG_INVALID = -1,
	36	CG_NONE,
	37	CG_ANALOG,
	38	CG_DIGITAL,
	39	};
	40
4f840ce9	41	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
8ab929d6 SA	42	{
	43	return std_init(sr_ctx, di, LOG_PREFIX);
	44	}
	45
	46	static struct sr_dev_inst probe_usbtmc_device(struct sr_scpi_dev_inst scpi)
	47	{
	48	struct sr_dev_inst *sdi;
	49	struct dev_context *devc;
	50	struct sr_scpi_hw_info *hw_info;
	51	char *model_name;
	52	int model_index;
	53
	54	sdi = NULL;
	55	devc = NULL;
	56	hw_info = NULL;
	57
	58	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	59	sr_info("Couldn't get IDN response.");
	60	goto fail;
	61	}
	62
	63	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
	64	goto fail;
	65
	66	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
	67	goto fail;
	68
aac29cc1	69	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	70	sdi->status = SR_ST_ACTIVE;
	71	sdi->vendor = g_strdup(MANUFACTURER_NAME);
	72	sdi->model = g_strdup(model_name);
	73	sdi->version = g_strdup(hw_info->firmware_version);
8ab929d6	74
d1314831 SA	75	sdi->serial_num = g_strdup(hw_info->serial_number);
d1314831 SA	76
8ab929d6 SA	77	sr_scpi_hw_info_free(hw_info);
	78	hw_info = NULL;
	79
ac10a927	80	devc = g_malloc0(sizeof(struct dev_context));
8ab929d6	81
4f840ce9	82	sdi->driver = &yokogawa_dlm_driver_info;
8ab929d6 SA	83	sdi->priv = devc;
	84	sdi->inst_type = SR_INST_SCPI;
	85	sdi->conn = scpi;
	86
	87	if (dlm_device_init(sdi, model_index) != SR_OK)
	88	goto fail;
	89
	90	sr_scpi_close(sdi->conn);
	91
	92	sdi->status = SR_ST_INACTIVE;
	93	return sdi;
	94
	95	fail:
	96	if (hw_info)
	97	sr_scpi_hw_info_free(hw_info);
	98	if (sdi)
	99	sr_dev_inst_free(sdi);
	100	if (devc)
	101	g_free(devc);
	102
	103	return NULL;
	104	}
	105
4f840ce9	106	static GSList scan(struct sr_dev_driver di, GSList *options)
8ab929d6 SA	107	{
	108	return sr_scpi_scan(di->priv, options, probe_usbtmc_device);
	109	}
	110
4f840ce9	111	static GSList dev_list(const struct sr_dev_driver di)
8ab929d6 SA	112	{
	113	return ((struct drv_context *)(di->priv))->instances;
	114	}
	115
	116	static void clear_helper(void *priv)
	117	{
	118	struct dev_context *devc;
	119
	120	devc = priv;
	121
	122	dlm_scope_state_destroy(devc->model_state);
	123
	124	g_free(devc->analog_groups);
	125	g_free(devc->digital_groups);
	126	g_free(devc);
	127	}
	128
4f840ce9	129	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6 SA	130	{
	131	return std_dev_clear(di, clear_helper);
	132	}
	133
	134	static int dev_open(struct sr_dev_inst *sdi)
	135	{
	136	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	137	return SR_ERR;
	138
	139	if (dlm_scope_state_query(sdi) != SR_OK)
	140	return SR_ERR;
	141
	142	sdi->status = SR_ST_ACTIVE;
	143
	144	return SR_OK;
	145	}
	146
	147	static int dev_close(struct sr_dev_inst *sdi)
	148	{
	149	if (sdi->status == SR_ST_INACTIVE)
	150	return SR_OK;
	151
	152	sr_scpi_close(sdi->conn);
	153
	154	sdi->status = SR_ST_INACTIVE;
	155
	156	return SR_OK;
	157	}
	158
4f840ce9	159	static int cleanup(const struct sr_dev_driver *di)
8ab929d6	160	{
4f840ce9	161	dev_clear(di);
8ab929d6 SA	162
	163	return SR_OK;
	164	}
	165
	166	/**
	167	* Check which category a given channel group belongs to.
	168	*
	169	* @param devc Our internal device context.
	170	* @param cg The channel group to check.
	171	*
	172	* @retval CG_NONE cg is NULL
	173	* @retval CG_ANALOG cg is an analog group
	174	* @retval CG_DIGITAL cg is a digital group
	175	* @retval CG_INVALID cg is something else
	176	*/
	177	static int check_channel_group(struct dev_context *devc,
ac10a927	178	const struct sr_channel_group *cg)
8ab929d6 SA	179	{
8ab929d6 SA	180	unsigned int i;
329733d9	181	const struct scope_config *model;
8ab929d6 SA	182
	183	model = devc->model_config;
	184
	185	if (!cg)
	186	return CG_NONE;
	187
	188	for (i = 0; i < model->analog_channels; ++i)
	189	if (cg == devc->analog_groups[i])
	190	return CG_ANALOG;
	191
	192	for (i = 0; i < model->pods; ++i)
	193	if (cg == devc->digital_groups[i])
	194	return CG_DIGITAL;
	195
	196	sr_err("Invalid channel group specified.");
	197	return CG_INVALID;
	198	}
	199
584560f1	200	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	201	const struct sr_channel_group *cg)
8ab929d6 SA	202	{
	203	int ret, cg_type;
	204	unsigned int i;
	205	struct dev_context *devc;
329733d9	206	const struct scope_config *model;
8ab929d6 SA	207	struct scope_state *state;
	208
	209	if (!sdi \|\| !(devc = sdi->priv))
	210	return SR_ERR_ARG;
	211
	212	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	213	return SR_ERR;
	214
	215	ret = SR_ERR_NA;
	216	model = devc->model_config;
	217	state = devc->model_state;
	218
	219	switch (key) {
bf622e6d	220	case SR_CONF_NUM_HDIV:
8ab929d6 SA	221	*data = g_variant_new_int32(model->num_xdivs);
	222	ret = SR_OK;
	223	break;
	224	case SR_CONF_TIMEBASE:
	225	*data = g_variant_new("(tt)",
ac10a927 SA	226	(*model->timebases)[state->timebase][0],
ac10a927 SA	227	(*model->timebases)[state->timebase][1]);
8ab929d6 SA	228	ret = SR_OK;
	229	break;
	230	case SR_CONF_NUM_VDIV:
	231	if (cg_type == CG_NONE) {
	232	sr_err("No channel group specified.");
	233	return SR_ERR_CHANNEL_GROUP;
	234	} else if (cg_type == CG_ANALOG) {
	235	*data = g_variant_new_int32(model->num_ydivs);
	236	ret = SR_OK;
	237	break;
	238	} else {
	239	ret = SR_ERR_NA;
	240	}
	241	break;
	242	case SR_CONF_VDIV:
	243	ret = SR_ERR_NA;
	244	if (cg_type == CG_NONE) {
	245	sr_err("No channel group specified.");
	246	return SR_ERR_CHANNEL_GROUP;
	247	} else if (cg_type != CG_ANALOG)
	248	break;
	249
	250	for (i = 0; i < model->analog_channels; ++i) {
	251	if (cg != devc->analog_groups[i])
	252	continue;
	253	*data = g_variant_new("(tt)",
ac10a927 SA	254	(*model->vdivs)[state->analog_states[i].vdiv][0],
ac10a927 SA	255	(*model->vdivs)[state->analog_states[i].vdiv][1]);
8ab929d6 SA	256	ret = SR_OK;
	257	break;
	258	}
	259	break;
	260	case SR_CONF_TRIGGER_SOURCE:
	261	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	262	ret = SR_OK;
	263	break;
	264	case SR_CONF_TRIGGER_SLOPE:
	265	data = g_variant_new_string((model->trigger_slopes)[state->trigger_slope]);
	266	ret = SR_OK;
	267	break;
	268	case SR_CONF_HORIZ_TRIGGERPOS:
	269	*data = g_variant_new_double(state->horiz_triggerpos);
	270	ret = SR_OK;
	271	break;
	272	case SR_CONF_COUPLING:
	273	ret = SR_ERR_NA;
	274	if (cg_type == CG_NONE) {
	275	sr_err("No channel group specified.");
	276	return SR_ERR_CHANNEL_GROUP;
	277	} else if (cg_type != CG_ANALOG)
	278	break;
	279
	280	for (i = 0; i < model->analog_channels; ++i) {
	281	if (cg != devc->analog_groups[i])
	282	continue;
	283	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	284	ret = SR_OK;
	285	break;
	286	}
	287	break;
	288	case SR_CONF_SAMPLERATE:
	289	*data = g_variant_new_uint64(state->sample_rate);
	290	ret = SR_OK;
	291	break;
	292	default:
	293	ret = SR_ERR_NA;
	294	}
	295
	296	return ret;
	297	}
	298
	299	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	300	{
	301	unsigned int i;
	302	GVariant *rational[2];
	303	GVariantBuilder gvb;
	304
	305	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	306
	307	for (i = 0; i < n; i++) {
	308	rational[0] = g_variant_new_uint64((*array)[i][0]);
	309	rational[1] = g_variant_new_uint64((*array)[i][1]);
	310
	311	/* FIXME: Valgrind reports a memory leak here. */
	312	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	313	}
	314
	315	return g_variant_builder_end(&gvb);
	316	}
	317
584560f1	318	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	319	const struct sr_channel_group *cg)
8ab929d6 SA	320	{
	321	int ret, cg_type;
	322	unsigned int i, j;
	323	char float_str[30];
	324	struct dev_context *devc;
329733d9	325	const struct scope_config *model;
8ab929d6 SA	326	struct scope_state *state;
	327	const char *tmp;
	328	uint64_t p, q;
	329	double tmp_d;
	330	gboolean update_sample_rate;
	331
	332	if (!sdi \|\| !(devc = sdi->priv))
	333	return SR_ERR_ARG;
	334
	335	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	336	return SR_ERR;
	337
	338	model = devc->model_config;
	339	state = devc->model_state;
	340	update_sample_rate = FALSE;
	341
	342	ret = SR_ERR_NA;
	343
	344	switch (key) {
	345	case SR_CONF_LIMIT_FRAMES:
	346	devc->frame_limit = g_variant_get_uint64(data);
	347	ret = SR_OK;
	348	break;
	349	case SR_CONF_TRIGGER_SOURCE:
	350	tmp = g_variant_get_string(data, NULL);
	351	for (i = 0; (*model->trigger_sources)[i]; i++) {
	352	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	353	continue;
	354	state->trigger_source = i;
	355	/* TODO: A and B trigger support possible? */
	356	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	357	break;
	358	}
	359	break;
	360	case SR_CONF_VDIV:
	361	if (cg_type == CG_NONE) {
	362	sr_err("No channel group specified.");
	363	return SR_ERR_CHANNEL_GROUP;
	364	}
	365
	366	g_variant_get(data, "(tt)", &p, &q);
	367
	368	for (i = 0; i < model->num_vdivs; i++) {
	369	if (p != (*model->vdivs)[i][0] \|\|
ac10a927	370	q != (*model->vdivs)[i][1])
8ab929d6 SA	371	continue;
	372	for (j = 1; j <= model->analog_channels; ++j) {
	373	if (cg != devc->analog_groups[j - 1])
	374	continue;
	375	state->analog_states[j - 1].vdiv = i;
	376	g_ascii_formatd(float_str, sizeof(float_str),
	377	"%E", (float) p / q);
	378	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	379	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	380	return SR_ERR;
	381
	382	break;
	383	}
	384
	385	ret = SR_OK;
	386	break;
	387	}
	388	break;
	389	case SR_CONF_TIMEBASE:
	390	g_variant_get(data, "(tt)", &p, &q);
	391
	392	for (i = 0; i < model->num_timebases; i++) {
	393	if (p != (*model->timebases)[i][0] \|\|
ac10a927	394	q != (*model->timebases)[i][1])
8ab929d6 SA	395	continue;
	396	state->timebase = i;
	397	g_ascii_formatd(float_str, sizeof(float_str),
	398	"%E", (float) p / q);
	399	ret = dlm_timebase_set(sdi->conn, float_str);
	400	update_sample_rate = TRUE;
	401	break;
	402	}
	403	break;
	404	case SR_CONF_HORIZ_TRIGGERPOS:
	405	tmp_d = g_variant_get_double(data);
	406
	407	/* TODO: Check if the calculation makes sense for the DLM. */
	408	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	409	return SR_ERR;
	410
	411	state->horiz_triggerpos = tmp_d;
	412	tmp_d = -(tmp_d - 0.5) *
ac10a927 SA	413	((double) (*model->timebases)[state->timebase][0] /
	414	(*model->timebases)[state->timebase][1])
	415	* model->num_xdivs;
8ab929d6 SA	416
	417	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	418	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	419	break;
	420	case SR_CONF_TRIGGER_SLOPE:
	421	tmp = g_variant_get_string(data, NULL);
	422
	423	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	424	return SR_ERR_ARG;
	425
	426	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	427	state->trigger_slope = (tmp[0] == 'r') ?
	428	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	429
	430	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	431	break;
	432	case SR_CONF_COUPLING:
	433	if (cg_type == CG_NONE) {
	434	sr_err("No channel group specified.");
	435	return SR_ERR_CHANNEL_GROUP;
	436	}
	437
	438	tmp = g_variant_get_string(data, NULL);
	439
	440	for (i = 0; (*model->coupling_options)[i]; i++) {
	441	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	442	continue;
	443	for (j = 1; j <= model->analog_channels; ++j) {
	444	if (cg != devc->analog_groups[j - 1])
	445	continue;
	446	state->analog_states[j-1].coupling = i;
	447
	448	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	449	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	450	return SR_ERR;
	451	break;
	452	}
	453
	454	ret = SR_OK;
	455	break;
	456	}
	457	break;
	458	default:
	459	ret = SR_ERR_NA;
	460	break;
	461	}
	462
	463	if (ret == SR_OK)
	464	ret = sr_scpi_get_opc(sdi->conn);
	465
	466	if (ret == SR_OK && update_sample_rate)
	467	ret = dlm_sample_rate_query(sdi);
	468
	469	return ret;
	470	}
	471
584560f1	472	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	473	const struct sr_channel_group *cg)
8ab929d6	474	{
cf0280fa AJ	475	int cg_type = CG_NONE;
cf0280fa AJ	476	struct dev_context *devc = NULL;
329733d9	477	const struct scope_config *model = NULL;
8ab929d6	478
cf0280fa AJ	479	if (sdi && (devc = sdi->priv)) {
	480	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	481	return SR_ERR;
8ab929d6	482
cf0280fa AJ	483	model = devc->model_config;
cf0280fa AJ	484	}
8ab929d6 SA	485
8ab929d6 SA	486	switch (key) {
8ab929d6 SA	487	case SR_CONF_DEVICE_OPTIONS:
8ab929d6 SA	488	if (cg_type == CG_NONE) {
cf0280fa AJ	489	if (model)
	490	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	491	model->devopts, model->num_devopts, sizeof(uint32_t));
	492	else
	493	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	494	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
8ab929d6	495	} else if (cg_type == CG_ANALOG) {
584560f1	496	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
af945a66	497	model->analog_devopts, model->num_analog_devopts, sizeof(uint32_t));
8ab929d6	498	} else {
584560f1 BV	499	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	500	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	501	}
	502	break;
	503	case SR_CONF_COUPLING:
	504	if (cg_type == CG_NONE)
	505	return SR_ERR_CHANNEL_GROUP;
	506	data = g_variant_new_strv(model->coupling_options,
ac10a927	507	g_strv_length((char *)model->coupling_options));
8ab929d6 SA	508	break;
8ab929d6 SA	509	case SR_CONF_TRIGGER_SOURCE:
cf0280fa AJ	510	if (!model)
cf0280fa AJ	511	return SR_ERR_ARG;
8ab929d6	512	data = g_variant_new_strv(model->trigger_sources,
ac10a927	513	g_strv_length((char *)model->trigger_sources));
8ab929d6 SA	514	break;
8ab929d6 SA	515	case SR_CONF_TRIGGER_SLOPE:
cf0280fa AJ	516	if (!model)
cf0280fa AJ	517	return SR_ERR_ARG;
8ab929d6	518	data = g_variant_new_strv(model->trigger_slopes,
ac10a927	519	g_strv_length((char *)model->trigger_slopes));
8ab929d6 SA	520	break;
8ab929d6 SA	521	case SR_CONF_TIMEBASE:
cf0280fa AJ	522	if (!model)
cf0280fa AJ	523	return SR_ERR_ARG;
8ab929d6 SA	524	*data = build_tuples(model->timebases, model->num_timebases);
	525	break;
	526	case SR_CONF_VDIV:
	527	if (cg_type == CG_NONE)
	528	return SR_ERR_CHANNEL_GROUP;
	529	*data = build_tuples(model->vdivs, model->num_vdivs);
	530	break;
	531	default:
	532	return SR_ERR_NA;
	533	}
	534
	535	return SR_OK;
	536	}
	537
	538	static int dlm_check_channels(GSList *channels)
	539	{
	540	GSList *l;
	541	struct sr_channel *ch;
	542	gboolean enabled_pod1, enabled_chan4;
	543
	544	enabled_pod1 = enabled_chan4 = FALSE;
	545
	546	/* Note: On the DLM2000, CH4 and Logic are shared. */
	547	/* TODO Handle non-DLM2000 models. */
	548	for (l = channels; l; l = l->next) {
	549	ch = l->data;
	550	switch (ch->type) {
	551	case SR_CHANNEL_ANALOG:
	552	if (ch->index == 3)
	553	enabled_chan4 = TRUE;
	554	break;
	555	case SR_CHANNEL_LOGIC:
	556	enabled_pod1 = TRUE;
	557	break;
	558	default:
	559	return SR_ERR;
	560	}
	561	}
	562
	563	if (enabled_pod1 && enabled_chan4)
	564	return SR_ERR;
	565
	566	return SR_OK;
	567	}
	568
	569	static int dlm_setup_channels(const struct sr_dev_inst *sdi)
	570	{
	571	GSList *l;
	572	unsigned int i;
	573	gboolean *pod_enabled, setup_changed;
	574	struct scope_state *state;
329733d9	575	const struct scope_config *model;
8ab929d6 SA	576	struct sr_channel *ch;
	577	struct dev_context *devc;
	578	struct sr_scpi_dev_inst *scpi;
	579
	580	devc = sdi->priv;
	581	scpi = sdi->conn;
	582	state = devc->model_state;
	583	model = devc->model_config;
	584	setup_changed = FALSE;
	585
ac10a927	586	pod_enabled = g_malloc0(sizeof(gboolean) * model->pods);
8ab929d6 SA	587
	588	for (l = sdi->channels; l; l = l->next) {
	589	ch = l->data;
	590	switch (ch->type) {
	591	case SR_CHANNEL_ANALOG:
	592	if (ch->enabled == state->analog_states[ch->index].state)
	593	break;
	594
	595	if (dlm_analog_chan_state_set(scpi, ch->index + 1,
ac10a927	596	ch->enabled) != SR_OK)
8ab929d6 SA	597	return SR_ERR;
	598
	599	state->analog_states[ch->index].state = ch->enabled;
	600	setup_changed = TRUE;
	601	break;
	602	case SR_CHANNEL_LOGIC:
	603	if (ch->enabled)
	604	pod_enabled[ch->index / 8] = TRUE;
	605
	606	if (ch->enabled == state->digital_states[ch->index])
	607	break;
	608
	609	if (dlm_digital_chan_state_set(scpi, ch->index + 1,
ac10a927	610	ch->enabled) != SR_OK)
8ab929d6 SA	611	return SR_ERR;
	612
	613	state->digital_states[ch->index] = ch->enabled;
	614	setup_changed = TRUE;
	615	break;
	616	default:
	617	return SR_ERR;
	618	}
	619	}
	620
	621	for (i = 1; i <= model->pods; ++i) {
	622	if (state->pod_states[i - 1] == pod_enabled[i - 1])
	623	continue;
	624
	625	if (dlm_digital_pod_state_set(scpi, i,
ac10a927	626	pod_enabled[i - 1]) != SR_OK)
8ab929d6 SA	627	return SR_ERR;
	628
	629	state->pod_states[i - 1] = pod_enabled[i - 1];
	630	setup_changed = TRUE;
	631	}
	632
	633	g_free(pod_enabled);
	634
	635	if (setup_changed && dlm_sample_rate_query(sdi) != SR_OK)
	636	return SR_ERR;
	637
	638	return SR_OK;
	639	}
	640
	641	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	642	{
	643	GSList *l;
	644	gboolean digital_added;
	645	struct sr_channel *ch;
	646	struct dev_context *devc;
	647	struct sr_scpi_dev_inst *scpi;
	648
	649	(void)cb_data;
	650
ac10a927 SA	651	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	652	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	653
	654	scpi = sdi->conn;
	655	devc = sdi->priv;
	656	digital_added = FALSE;
	657
	658	g_slist_free(devc->enabled_channels);
	659	devc->enabled_channels = NULL;
	660
	661	for (l = sdi->channels; l; l = l->next) {
	662	ch = l->data;
	663	if (!ch->enabled)
	664	continue;
	665	/* Only add a single digital channel. */
	666	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	667	devc->enabled_channels = g_slist_append(
ac10a927 SA	668	devc->enabled_channels, ch);
	669	if (ch->type == SR_CHANNEL_LOGIC)
	670	digital_added = TRUE;
8ab929d6 SA	671	}
	672	}
	673
	674	if (!devc->enabled_channels)
	675	return SR_ERR;
	676
	677	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	678	sr_err("Invalid channel configuration specified!");
	679	return SR_ERR_NA;
	680	}
	681
	682	if (dlm_setup_channels(sdi) != SR_OK) {
	683	sr_err("Failed to setup channel configuration!");
	684	return SR_ERR;
	685	}
	686
af3487ec SA	687	/* Request data for the first enabled channel. */
	688	devc->current_channel = devc->enabled_channels;
	689	dlm_channel_data_request(sdi);
	690
0028d5a1 SA	691	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	692	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	693	dlm_data_receive, (void *)sdi);
	694
	695	return SR_OK;
	696	}
	697
	698	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	699	{
	700	struct dev_context *devc;
8ab929d6 SA	701	struct sr_datafeed_packet packet;
	702
	703	(void)cb_data;
	704
	705	packet.type = SR_DF_END;
	706	packet.payload = NULL;
	707	sr_session_send(sdi, &packet);
	708
	709	if (sdi->status != SR_ST_ACTIVE)
	710	return SR_ERR_DEV_CLOSED;
	711
	712	devc = sdi->priv;
	713
	714	devc->num_frames = 0;
	715	g_slist_free(devc->enabled_channels);
	716	devc->enabled_channels = NULL;
af3487ec SA	717
af3487ec SA	718	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	719
	720	return SR_OK;
	721	}
10763937 SA	722
	723	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	724	.name = "yokogawa-dlm",
ac10a927	725	.longname = "Yokogawa DL/DLM",
10763937	726	.api_version = 1,
8ab929d6 SA	727	.init = init,
	728	.cleanup = cleanup,
	729	.scan = scan,
	730	.dev_list = dev_list,
	731	.dev_clear = dev_clear,
	732	.config_get = config_get,
	733	.config_set = config_set,
	734	.config_list = config_list,
	735	.dev_open = dev_open,
	736	.dev_close = dev_close,
	737	.dev_acquisition_start = dev_acquisition_start,
	738	.dev_acquisition_stop = dev_acquisition_stop,
10763937 SA	739	.priv = NULL,
10763937 SA	740	};