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

static struct sr_dev_driver yokogawa_dlm_driver_info;

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

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

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

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

static const uint32_t dlm_digital_devopts[] = {
};

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

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->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;

	return sdi;

fail:
	if (hw_info)
		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_usbtmc_device);
}

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;
}

/**
 * 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)
		return SR_ERR_ARG;

	devc = sdi->priv;

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

	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)",
				dlm_timebases[state->timebase][0],
				dlm_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)",
					dlm_vdivs[state->analog_states[i].vdiv][0],
					dlm_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(dlm_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 < ARRAY_SIZE(dlm_vdivs); i++) {
			if (p != dlm_vdivs[i][0] ||
					q != dlm_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 < ARRAY_SIZE(dlm_timebases); i++) {
			if (p != dlm_timebases[i][0] ||
					q != dlm_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) dlm_timebases[state->timebase][0] /
				dlm_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_channel_set(const struct sr_dev_inst *sdi,
			struct sr_channel *ch, unsigned int changes)
{
	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
	if (changes != SR_CHANNEL_SET_ENABLED)
		return SR_ERR_NA;

	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
}

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;

	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
		return SR_OK;
	}

	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;
	model = devc->model_config;

	/*
	 * If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	 * specific to a probe group must be returned.
	 */
	if (!cg) {
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
					dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
			return SR_OK;
		case SR_CONF_TIMEBASE:
			*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
			return SR_OK;
		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));
			return SR_OK;
		case SR_CONF_TRIGGER_SLOPE:
			*data = g_variant_new_strv(dlm_trigger_slopes,
					g_strv_length((char **)dlm_trigger_slopes));
			return SR_OK;
		case SR_CONF_NUM_HDIV:
			*data = g_variant_new_uint32(model->num_xdivs);
			return SR_OK;
		default:
			return SR_ERR_NA;
		}
	}

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

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		if (cg_type == CG_ANALOG) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
		} else if (cg_type == CG_DIGITAL) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_digital_devopts, ARRAY_SIZE(dlm_digital_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_VDIV:
		if (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_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 dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	GSList *l;
	gboolean digital_added;
	struct sr_channel *ch;
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

	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;
	}

	/* 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)
{
	struct dev_context *devc;

	std_session_send_df_end(sdi);

	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;
}

static struct sr_dev_driver yokogawa_dlm_driver_info = {
	.name = "yokogawa-dlm",
	.longname = "Yokogawa DL/DLM",
	.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_channel_set = config_channel_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(yokogawa_dlm_driver_info);
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
6ec6c43b	21	#include <config.h>
10763937	22	#include <stdlib.h>
5a1afc09	23	#include "scpi.h"
10763937 SA	24	#include "protocol.h"
10763937 SA	25
dd5c48a6	26	static struct sr_dev_driver yokogawa_dlm_driver_info;
8ab929d6	27
329733d9 UH	28	static const char *MANUFACTURER_ID = "YOKOGAWA";
329733d9 UH	29	static const char *MANUFACTURER_NAME = "Yokogawa";
8ab929d6	30
f3c60fb6 SA	31	static const uint32_t dlm_scanopts[] = {
	32	SR_CONF_CONN,
	33	};
	34
	35	static const uint32_t dlm_drvopts[] = {
cf0280fa AJ	36	SR_CONF_LOGIC_ANALYZER,
	37	SR_CONF_OSCILLOSCOPE,
	38	};
	39
f3c60fb6 SA	40	static const uint32_t dlm_devopts[] = {
	41	SR_CONF_LIMIT_FRAMES \| SR_CONF_GET \| SR_CONF_SET,
	42	SR_CONF_SAMPLERATE \| SR_CONF_GET,
	43	SR_CONF_TIMEBASE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	44	SR_CONF_NUM_HDIV \| SR_CONF_GET,
	45	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_GET \| SR_CONF_SET,
f3c60fb6	46	SR_CONF_TRIGGER_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
86621306	47	SR_CONF_TRIGGER_SLOPE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
f3c60fb6 SA	48	};
	49
	50	static const uint32_t dlm_analog_devopts[] = {
f3c60fb6	51	SR_CONF_NUM_VDIV \| SR_CONF_GET,
86621306 UH	52	SR_CONF_VDIV \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
86621306 UH	53	SR_CONF_COUPLING \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
f3c60fb6 SA	54	};
	55
	56	static const uint32_t dlm_digital_devopts[] = {
	57	};
	58
8ab929d6 SA	59	enum {
	60	CG_INVALID = -1,
	61	CG_NONE,
	62	CG_ANALOG,
	63	CG_DIGITAL,
	64	};
	65
8ab929d6 SA	66	static struct sr_dev_inst probe_usbtmc_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	char *model_name;
	72	int model_index;
	73
	74	sdi = NULL;
	75	devc = NULL;
	76	hw_info = NULL;
	77
	78	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	79	sr_info("Couldn't get IDN response.");
	80	goto fail;
	81	}
	82
	83	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
	84	goto fail;
	85
	86	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
	87	goto fail;
	88
aac29cc1	89	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	90	sdi->vendor = g_strdup(MANUFACTURER_NAME);
	91	sdi->model = g_strdup(model_name);
	92	sdi->version = g_strdup(hw_info->firmware_version);
8ab929d6	93
d1314831 SA	94	sdi->serial_num = g_strdup(hw_info->serial_number);
d1314831 SA	95
8ab929d6 SA	96	sr_scpi_hw_info_free(hw_info);
	97	hw_info = NULL;
	98
ac10a927	99	devc = g_malloc0(sizeof(struct dev_context));
8ab929d6	100
4f840ce9	101	sdi->driver = &yokogawa_dlm_driver_info;
8ab929d6 SA	102	sdi->priv = devc;
	103	sdi->inst_type = SR_INST_SCPI;
	104	sdi->conn = scpi;
	105
	106	if (dlm_device_init(sdi, model_index) != SR_OK)
	107	goto fail;
	108
8ab929d6 SA	109	return sdi;
	110
	111	fail:
	112	if (hw_info)
	113	sr_scpi_hw_info_free(hw_info);
4bf93988	114	sr_dev_inst_free(sdi);
b1f83103	115	g_free(devc);
8ab929d6 SA	116
	117	return NULL;
	118	}
	119
4f840ce9	120	static GSList scan(struct sr_dev_driver di, GSList *options)
8ab929d6	121	{
41812aca	122	return sr_scpi_scan(di->context, options, probe_usbtmc_device);
8ab929d6 SA	123	}
8ab929d6 SA	124
8ab929d6 SA	125	static void clear_helper(void *priv)
	126	{
	127	struct dev_context *devc;
	128
	129	devc = priv;
	130
	131	dlm_scope_state_destroy(devc->model_state);
	132
	133	g_free(devc->analog_groups);
	134	g_free(devc->digital_groups);
	135	g_free(devc);
	136	}
	137
4f840ce9	138	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6 SA	139	{
	140	return std_dev_clear(di, clear_helper);
	141	}
	142
	143	static int dev_open(struct sr_dev_inst *sdi)
	144	{
	145	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	146	return SR_ERR;
	147
	148	if (dlm_scope_state_query(sdi) != SR_OK)
	149	return SR_ERR;
	150
	151	sdi->status = SR_ST_ACTIVE;
	152
	153	return SR_OK;
	154	}
	155
	156	static int dev_close(struct sr_dev_inst *sdi)
	157	{
	158	if (sdi->status == SR_ST_INACTIVE)
	159	return SR_OK;
	160
	161	sr_scpi_close(sdi->conn);
	162
	163	sdi->status = SR_ST_INACTIVE;
	164
	165	return SR_OK;
	166	}
	167
8ab929d6 SA	168	/**
	169	* Check which category a given channel group belongs to.
	170	*
	171	* @param devc Our internal device context.
a9308652	172	* @param cg The channel group to check.
8ab929d6	173	*
a9308652 UH	174	* @retval CG_NONE cg is NULL
a9308652 UH	175	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	176	* @retval CG_DIGITAL cg is a digital group
	177	* @retval CG_INVALID cg is something else
	178	*/
	179	static int check_channel_group(struct dev_context *devc,
ac10a927	180	const struct sr_channel_group *cg)
8ab929d6 SA	181	{
8ab929d6 SA	182	unsigned int i;
329733d9	183	const struct scope_config *model;
8ab929d6 SA	184
	185	model = devc->model_config;
	186
	187	if (!cg)
	188	return CG_NONE;
	189
a9308652	190	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	191	if (cg == devc->analog_groups[i])
	192	return CG_ANALOG;
	193
a9308652	194	for (i = 0; i < model->pods; i++)
8ab929d6 SA	195	if (cg == devc->digital_groups[i])
	196	return CG_DIGITAL;
	197
	198	sr_err("Invalid channel group specified.");
	199	return CG_INVALID;
	200	}
	201
584560f1	202	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	203	const struct sr_channel_group *cg)
8ab929d6 SA	204	{
	205	int ret, cg_type;
	206	unsigned int i;
	207	struct dev_context *devc;
329733d9	208	const struct scope_config *model;
8ab929d6 SA	209	struct scope_state *state;
8ab929d6 SA	210
709468ba	211	if (!sdi)
8ab929d6 SA	212	return SR_ERR_ARG;
8ab929d6 SA	213
709468ba UH	214	devc = sdi->priv;
709468ba UH	215
8ab929d6 SA	216	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	217	return SR_ERR;
	218
8ab929d6 SA	219	model = devc->model_config;
	220	state = devc->model_state;
	221
	222	switch (key) {
bf622e6d	223	case SR_CONF_NUM_HDIV:
8ab929d6 SA	224	*data = g_variant_new_int32(model->num_xdivs);
	225	ret = SR_OK;
	226	break;
	227	case SR_CONF_TIMEBASE:
	228	*data = g_variant_new("(tt)",
f3c60fb6 SA	229	dlm_timebases[state->timebase][0],
f3c60fb6 SA	230	dlm_timebases[state->timebase][1]);
8ab929d6 SA	231	ret = SR_OK;
	232	break;
	233	case SR_CONF_NUM_VDIV:
	234	if (cg_type == CG_NONE) {
	235	sr_err("No channel group specified.");
	236	return SR_ERR_CHANNEL_GROUP;
	237	} else if (cg_type == CG_ANALOG) {
	238	*data = g_variant_new_int32(model->num_ydivs);
	239	ret = SR_OK;
	240	break;
	241	} else {
	242	ret = SR_ERR_NA;
	243	}
	244	break;
	245	case SR_CONF_VDIV:
	246	ret = SR_ERR_NA;
	247	if (cg_type == CG_NONE) {
	248	sr_err("No channel group specified.");
	249	return SR_ERR_CHANNEL_GROUP;
	250	} else if (cg_type != CG_ANALOG)
	251	break;
	252
a9308652	253	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	254	if (cg != devc->analog_groups[i])
	255	continue;
	256	*data = g_variant_new("(tt)",
f3c60fb6 SA	257	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	258	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	259	ret = SR_OK;
	260	break;
	261	}
	262	break;
	263	case SR_CONF_TRIGGER_SOURCE:
	264	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	265	ret = SR_OK;
	266	break;
	267	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	268	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	269	ret = SR_OK;
	270	break;
	271	case SR_CONF_HORIZ_TRIGGERPOS:
	272	*data = g_variant_new_double(state->horiz_triggerpos);
	273	ret = SR_OK;
	274	break;
	275	case SR_CONF_COUPLING:
	276	ret = SR_ERR_NA;
	277	if (cg_type == CG_NONE) {
	278	sr_err("No channel group specified.");
	279	return SR_ERR_CHANNEL_GROUP;
	280	} else if (cg_type != CG_ANALOG)
	281	break;
	282
a9308652	283	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	284	if (cg != devc->analog_groups[i])
	285	continue;
	286	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	287	ret = SR_OK;
	288	break;
	289	}
	290	break;
	291	case SR_CONF_SAMPLERATE:
	292	*data = g_variant_new_uint64(state->sample_rate);
	293	ret = SR_OK;
	294	break;
	295	default:
	296	ret = SR_ERR_NA;
	297	}
	298
	299	return ret;
	300	}
	301
	302	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	303	{
	304	unsigned int i;
	305	GVariant *rational[2];
	306	GVariantBuilder gvb;
	307
	308	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	309
	310	for (i = 0; i < n; i++) {
	311	rational[0] = g_variant_new_uint64((*array)[i][0]);
	312	rational[1] = g_variant_new_uint64((*array)[i][1]);
	313
	314	/* FIXME: Valgrind reports a memory leak here. */
	315	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	316	}
	317
	318	return g_variant_builder_end(&gvb);
	319	}
	320
584560f1	321	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	322	const struct sr_channel_group *cg)
8ab929d6 SA	323	{
	324	int ret, cg_type;
	325	unsigned int i, j;
	326	char float_str[30];
	327	struct dev_context *devc;
329733d9	328	const struct scope_config *model;
8ab929d6 SA	329	struct scope_state *state;
	330	const char *tmp;
	331	uint64_t p, q;
	332	double tmp_d;
	333	gboolean update_sample_rate;
	334
	335	if (!sdi \|\| !(devc = sdi->priv))
	336	return SR_ERR_ARG;
	337
	338	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	339	return SR_ERR;
	340
	341	model = devc->model_config;
	342	state = devc->model_state;
	343	update_sample_rate = FALSE;
	344
	345	ret = SR_ERR_NA;
	346
	347	switch (key) {
	348	case SR_CONF_LIMIT_FRAMES:
	349	devc->frame_limit = g_variant_get_uint64(data);
	350	ret = SR_OK;
	351	break;
	352	case SR_CONF_TRIGGER_SOURCE:
	353	tmp = g_variant_get_string(data, NULL);
	354	for (i = 0; (*model->trigger_sources)[i]; i++) {
	355	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	356	continue;
	357	state->trigger_source = i;
	358	/* TODO: A and B trigger support possible? */
	359	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	360	break;
	361	}
	362	break;
	363	case SR_CONF_VDIV:
	364	if (cg_type == CG_NONE) {
	365	sr_err("No channel group specified.");
	366	return SR_ERR_CHANNEL_GROUP;
	367	}
	368
	369	g_variant_get(data, "(tt)", &p, &q);
	370
f3c60fb6 SA	371	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	372	if (p != dlm_vdivs[i][0] \|\|
	373	q != dlm_vdivs[i][1])
8ab929d6	374	continue;
a9308652	375	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	376	if (cg != devc->analog_groups[j - 1])
	377	continue;
	378	state->analog_states[j - 1].vdiv = i;
	379	g_ascii_formatd(float_str, sizeof(float_str),
	380	"%E", (float) p / q);
	381	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	382	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	383	return SR_ERR;
	384
	385	break;
	386	}
	387
	388	ret = SR_OK;
	389	break;
	390	}
	391	break;
	392	case SR_CONF_TIMEBASE:
	393	g_variant_get(data, "(tt)", &p, &q);
	394
f3c60fb6 SA	395	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	396	if (p != dlm_timebases[i][0] \|\|
	397	q != dlm_timebases[i][1])
8ab929d6 SA	398	continue;
	399	state->timebase = i;
	400	g_ascii_formatd(float_str, sizeof(float_str),
	401	"%E", (float) p / q);
	402	ret = dlm_timebase_set(sdi->conn, float_str);
	403	update_sample_rate = TRUE;
	404	break;
	405	}
	406	break;
	407	case SR_CONF_HORIZ_TRIGGERPOS:
	408	tmp_d = g_variant_get_double(data);
	409
	410	/* TODO: Check if the calculation makes sense for the DLM. */
	411	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	412	return SR_ERR;
	413
	414	state->horiz_triggerpos = tmp_d;
	415	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	416	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	417	dlm_timebases[state->timebase][1])
ac10a927	418	* model->num_xdivs;
8ab929d6 SA	419
	420	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	421	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	422	break;
	423	case SR_CONF_TRIGGER_SLOPE:
	424	tmp = g_variant_get_string(data, NULL);
	425
	426	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	427	return SR_ERR_ARG;
	428
	429	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	430	state->trigger_slope = (tmp[0] == 'r') ?
	431	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	432
	433	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	434	break;
	435	case SR_CONF_COUPLING:
	436	if (cg_type == CG_NONE) {
	437	sr_err("No channel group specified.");
	438	return SR_ERR_CHANNEL_GROUP;
	439	}
	440
	441	tmp = g_variant_get_string(data, NULL);
	442
	443	for (i = 0; (*model->coupling_options)[i]; i++) {
	444	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	445	continue;
a9308652	446	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	447	if (cg != devc->analog_groups[j - 1])
	448	continue;
	449	state->analog_states[j-1].coupling = i;
	450
	451	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	452	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	453	return SR_ERR;
	454	break;
	455	}
	456
	457	ret = SR_OK;
	458	break;
	459	}
	460	break;
	461	default:
	462	ret = SR_ERR_NA;
	463	break;
	464	}
	465
	466	if (ret == SR_OK)
	467	ret = sr_scpi_get_opc(sdi->conn);
	468
	469	if (ret == SR_OK && update_sample_rate)
	470	ret = dlm_sample_rate_query(sdi);
	471
	472	return ret;
	473	}
	474
c65a021c SA	475	static int config_channel_set(const struct sr_dev_inst *sdi,
	476	struct sr_channel *ch, unsigned int changes)
	477	{
a9308652	478	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	479	if (changes != SR_CHANNEL_SET_ENABLED)
	480	return SR_ERR_NA;
	481
	482	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	483	}
	484
584560f1	485	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	486	const struct sr_channel_group *cg)
8ab929d6	487	{
cf0280fa AJ	488	int cg_type = CG_NONE;
cf0280fa AJ	489	struct dev_context *devc = NULL;
329733d9	490	const struct scope_config *model = NULL;
8ab929d6	491
f3c60fb6 SA	492	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	493	if (key == SR_CONF_SCAN_OPTIONS) {
	494	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	495	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	496	return SR_OK;
	497	}
8ab929d6	498
f3c60fb6 SA	499	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	500	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	501	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	502	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	503	return SR_OK;
cf0280fa	504	}
8ab929d6	505
f3c60fb6 SA	506	if (!sdi)
	507	return SR_ERR_ARG;
	508
	509	devc = sdi->priv;
	510	model = devc->model_config;
	511
a9308652 UH	512	/*
	513	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	514	* specific to a probe group must be returned.
	515	*/
f3c60fb6 SA	516	if (!cg) {
	517	switch (key) {
	518	case SR_CONF_DEVICE_OPTIONS:
	519	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	520	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	521	return SR_OK;
	522	case SR_CONF_TIMEBASE:
	523	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	524	return SR_OK;
	525	case SR_CONF_TRIGGER_SOURCE:
	526	if (!model)
	527	return SR_ERR_ARG;
	528	data = g_variant_new_strv(model->trigger_sources,
	529	g_strv_length((char *)model->trigger_sources));
	530	return SR_OK;
	531	case SR_CONF_TRIGGER_SLOPE:
	532	*data = g_variant_new_strv(dlm_trigger_slopes,
	533	g_strv_length((char **)dlm_trigger_slopes));
	534	return SR_OK;
	535	case SR_CONF_NUM_HDIV:
49f49cb5	536	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	537	return SR_OK;
	538	default:
	539	return SR_ERR_NA;
	540	}
	541	}
	542
	543	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	544	return SR_ERR;
	545
8ab929d6	546	switch (key) {
8ab929d6	547	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	548	if (cg_type == CG_ANALOG) {
584560f1	549	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	550	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	551	} else if (cg_type == CG_DIGITAL) {
	552	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	553	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	554	} else {
584560f1 BV	555	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	556	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	557	}
	558	break;
	559	case SR_CONF_COUPLING:
	560	if (cg_type == CG_NONE)
	561	return SR_ERR_CHANNEL_GROUP;
	562	data = g_variant_new_strv(model->coupling_options,
ac10a927	563	g_strv_length((char *)model->coupling_options));
8ab929d6	564	break;
8ab929d6 SA	565	case SR_CONF_VDIV:
	566	if (cg_type == CG_NONE)
	567	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	568	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	569	break;
	570	default:
	571	return SR_ERR_NA;
	572	}
	573
	574	return SR_OK;
	575	}
	576
	577	static int dlm_check_channels(GSList *channels)
	578	{
	579	GSList *l;
	580	struct sr_channel *ch;
	581	gboolean enabled_pod1, enabled_chan4;
	582
	583	enabled_pod1 = enabled_chan4 = FALSE;
	584
	585	/* Note: On the DLM2000, CH4 and Logic are shared. */
	586	/* TODO Handle non-DLM2000 models. */
	587	for (l = channels; l; l = l->next) {
	588	ch = l->data;
	589	switch (ch->type) {
	590	case SR_CHANNEL_ANALOG:
	591	if (ch->index == 3)
	592	enabled_chan4 = TRUE;
	593	break;
	594	case SR_CHANNEL_LOGIC:
	595	enabled_pod1 = TRUE;
	596	break;
	597	default:
	598	return SR_ERR;
	599	}
	600	}
	601
	602	if (enabled_pod1 && enabled_chan4)
	603	return SR_ERR;
	604
	605	return SR_OK;
	606	}
	607
695dc859	608	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	609	{
	610	GSList *l;
	611	gboolean digital_added;
	612	struct sr_channel *ch;
	613	struct dev_context *devc;
	614	struct sr_scpi_dev_inst *scpi;
	615
ac10a927 SA	616	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	617	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	618
	619	scpi = sdi->conn;
	620	devc = sdi->priv;
	621	digital_added = FALSE;
	622
	623	g_slist_free(devc->enabled_channels);
	624	devc->enabled_channels = NULL;
	625
	626	for (l = sdi->channels; l; l = l->next) {
	627	ch = l->data;
	628	if (!ch->enabled)
	629	continue;
	630	/* Only add a single digital channel. */
	631	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	632	devc->enabled_channels = g_slist_append(
ac10a927 SA	633	devc->enabled_channels, ch);
	634	if (ch->type == SR_CHANNEL_LOGIC)
	635	digital_added = TRUE;
8ab929d6 SA	636	}
	637	}
	638
	639	if (!devc->enabled_channels)
	640	return SR_ERR;
	641
	642	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	643	sr_err("Invalid channel configuration specified!");
	644	return SR_ERR_NA;
	645	}
	646
af3487ec SA	647	/* Request data for the first enabled channel. */
	648	devc->current_channel = devc->enabled_channels;
	649	dlm_channel_data_request(sdi);
	650
0028d5a1 SA	651	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	652	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	653	dlm_data_receive, (void *)sdi);
	654
	655	return SR_OK;
	656	}
	657
695dc859	658	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	659	{
8ab929d6 SA	660	struct dev_context *devc;
8ab929d6	661
bee2b016	662	std_session_send_df_end(sdi);
8ab929d6 SA	663
	664	if (sdi->status != SR_ST_ACTIVE)
	665	return SR_ERR_DEV_CLOSED;
	666
	667	devc = sdi->priv;
	668
	669	devc->num_frames = 0;
	670	g_slist_free(devc->enabled_channels);
	671	devc->enabled_channels = NULL;
af3487ec SA	672
af3487ec SA	673	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	674
	675	return SR_OK;
	676	}
10763937	677
dd5c48a6	678	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	679	.name = "yokogawa-dlm",
ac10a927	680	.longname = "Yokogawa DL/DLM",
10763937	681	.api_version = 1,
c2fdcc25	682	.init = std_init,
700d6b64	683	.cleanup = std_cleanup,
8ab929d6	684	.scan = scan,
c01bf34c	685	.dev_list = std_dev_list,
8ab929d6 SA	686	.dev_clear = dev_clear,
	687	.config_get = config_get,
	688	.config_set = config_set,
c65a021c	689	.config_channel_set = config_channel_set,
8ab929d6 SA	690	.config_list = config_list,
	691	.dev_open = dev_open,
	692	.dev_close = dev_close,
	693	.dev_acquisition_start = dev_acquisition_start,
	694	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	695	.context = NULL,
10763937	696	};
dd5c48a6	697	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);