[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"

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 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_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

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

static const uint32_t dlm_digital_devopts[] = {
};

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(di, sr_ctx);
}

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);
	if (sdi)
		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 || !(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;

	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, LOG_PREFIX);

	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 = 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,
};
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
8ab929d6	26	SR_PRIV 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,
	46	SR_CONF_TRIGGER_SLOPE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	47	SR_CONF_TRIGGER_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	48	};
	49
	50	static const uint32_t dlm_analog_devopts[] = {
	51	SR_CONF_COUPLING \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	52	SR_CONF_VDIV \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	53	SR_CONF_NUM_VDIV \| SR_CONF_GET,
	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
4f840ce9	66	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
8ab929d6	67	{
c45c32ce	68	return std_init(di, sr_ctx);
8ab929d6 SA	69	}
	70
	71	static struct sr_dev_inst probe_usbtmc_device(struct sr_scpi_dev_inst scpi)
	72	{
	73	struct sr_dev_inst *sdi;
	74	struct dev_context *devc;
	75	struct sr_scpi_hw_info *hw_info;
	76	char *model_name;
	77	int model_index;
	78
	79	sdi = NULL;
	80	devc = NULL;
	81	hw_info = NULL;
	82
	83	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	84	sr_info("Couldn't get IDN response.");
	85	goto fail;
	86	}
	87
	88	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
	89	goto fail;
	90
	91	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
	92	goto fail;
	93
aac29cc1	94	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	95	sdi->vendor = g_strdup(MANUFACTURER_NAME);
	96	sdi->model = g_strdup(model_name);
	97	sdi->version = g_strdup(hw_info->firmware_version);
8ab929d6	98
d1314831 SA	99	sdi->serial_num = g_strdup(hw_info->serial_number);
d1314831 SA	100
8ab929d6 SA	101	sr_scpi_hw_info_free(hw_info);
	102	hw_info = NULL;
	103
ac10a927	104	devc = g_malloc0(sizeof(struct dev_context));
8ab929d6	105
4f840ce9	106	sdi->driver = &yokogawa_dlm_driver_info;
8ab929d6 SA	107	sdi->priv = devc;
	108	sdi->inst_type = SR_INST_SCPI;
	109	sdi->conn = scpi;
	110
	111	if (dlm_device_init(sdi, model_index) != SR_OK)
	112	goto fail;
	113
8ab929d6 SA	114	return sdi;
	115
	116	fail:
	117	if (hw_info)
	118	sr_scpi_hw_info_free(hw_info);
	119	if (sdi)
	120	sr_dev_inst_free(sdi);
b1f83103	121	g_free(devc);
8ab929d6 SA	122
	123	return NULL;
	124	}
	125
4f840ce9	126	static GSList scan(struct sr_dev_driver di, GSList *options)
8ab929d6	127	{
41812aca	128	return sr_scpi_scan(di->context, options, probe_usbtmc_device);
8ab929d6 SA	129	}
8ab929d6 SA	130
8ab929d6 SA	131	static void clear_helper(void *priv)
	132	{
	133	struct dev_context *devc;
	134
	135	devc = priv;
	136
	137	dlm_scope_state_destroy(devc->model_state);
	138
	139	g_free(devc->analog_groups);
	140	g_free(devc->digital_groups);
	141	g_free(devc);
	142	}
	143
4f840ce9	144	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6 SA	145	{
	146	return std_dev_clear(di, clear_helper);
	147	}
	148
	149	static int dev_open(struct sr_dev_inst *sdi)
	150	{
	151	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	152	return SR_ERR;
	153
	154	if (dlm_scope_state_query(sdi) != SR_OK)
	155	return SR_ERR;
	156
	157	sdi->status = SR_ST_ACTIVE;
	158
	159	return SR_OK;
	160	}
	161
	162	static int dev_close(struct sr_dev_inst *sdi)
	163	{
	164	if (sdi->status == SR_ST_INACTIVE)
	165	return SR_OK;
	166
	167	sr_scpi_close(sdi->conn);
	168
	169	sdi->status = SR_ST_INACTIVE;
	170
	171	return SR_OK;
	172	}
	173
8ab929d6 SA	174	/**
	175	* Check which category a given channel group belongs to.
	176	*
	177	* @param devc Our internal device context.
a9308652	178	* @param cg The channel group to check.
8ab929d6	179	*
a9308652 UH	180	* @retval CG_NONE cg is NULL
a9308652 UH	181	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	182	* @retval CG_DIGITAL cg is a digital group
	183	* @retval CG_INVALID cg is something else
	184	*/
	185	static int check_channel_group(struct dev_context *devc,
ac10a927	186	const struct sr_channel_group *cg)
8ab929d6 SA	187	{
8ab929d6 SA	188	unsigned int i;
329733d9	189	const struct scope_config *model;
8ab929d6 SA	190
	191	model = devc->model_config;
	192
	193	if (!cg)
	194	return CG_NONE;
	195
a9308652	196	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	197	if (cg == devc->analog_groups[i])
	198	return CG_ANALOG;
	199
a9308652	200	for (i = 0; i < model->pods; i++)
8ab929d6 SA	201	if (cg == devc->digital_groups[i])
	202	return CG_DIGITAL;
	203
	204	sr_err("Invalid channel group specified.");
	205	return CG_INVALID;
	206	}
	207
584560f1	208	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	209	const struct sr_channel_group *cg)
8ab929d6 SA	210	{
	211	int ret, cg_type;
	212	unsigned int i;
	213	struct dev_context *devc;
329733d9	214	const struct scope_config *model;
8ab929d6 SA	215	struct scope_state *state;
	216
	217	if (!sdi \|\| !(devc = sdi->priv))
	218	return SR_ERR_ARG;
	219
	220	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	221	return SR_ERR;
	222
8ab929d6 SA	223	model = devc->model_config;
	224	state = devc->model_state;
	225
	226	switch (key) {
bf622e6d	227	case SR_CONF_NUM_HDIV:
8ab929d6 SA	228	*data = g_variant_new_int32(model->num_xdivs);
	229	ret = SR_OK;
	230	break;
	231	case SR_CONF_TIMEBASE:
	232	*data = g_variant_new("(tt)",
f3c60fb6 SA	233	dlm_timebases[state->timebase][0],
f3c60fb6 SA	234	dlm_timebases[state->timebase][1]);
8ab929d6 SA	235	ret = SR_OK;
	236	break;
	237	case SR_CONF_NUM_VDIV:
	238	if (cg_type == CG_NONE) {
	239	sr_err("No channel group specified.");
	240	return SR_ERR_CHANNEL_GROUP;
	241	} else if (cg_type == CG_ANALOG) {
	242	*data = g_variant_new_int32(model->num_ydivs);
	243	ret = SR_OK;
	244	break;
	245	} else {
	246	ret = SR_ERR_NA;
	247	}
	248	break;
	249	case SR_CONF_VDIV:
	250	ret = SR_ERR_NA;
	251	if (cg_type == CG_NONE) {
	252	sr_err("No channel group specified.");
	253	return SR_ERR_CHANNEL_GROUP;
	254	} else if (cg_type != CG_ANALOG)
	255	break;
	256
a9308652	257	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	258	if (cg != devc->analog_groups[i])
	259	continue;
	260	*data = g_variant_new("(tt)",
f3c60fb6 SA	261	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	262	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	263	ret = SR_OK;
	264	break;
	265	}
	266	break;
	267	case SR_CONF_TRIGGER_SOURCE:
	268	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	269	ret = SR_OK;
	270	break;
	271	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	272	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	273	ret = SR_OK;
	274	break;
	275	case SR_CONF_HORIZ_TRIGGERPOS:
	276	*data = g_variant_new_double(state->horiz_triggerpos);
	277	ret = SR_OK;
	278	break;
	279	case SR_CONF_COUPLING:
	280	ret = SR_ERR_NA;
	281	if (cg_type == CG_NONE) {
	282	sr_err("No channel group specified.");
	283	return SR_ERR_CHANNEL_GROUP;
	284	} else if (cg_type != CG_ANALOG)
	285	break;
	286
a9308652	287	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	288	if (cg != devc->analog_groups[i])
	289	continue;
	290	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	291	ret = SR_OK;
	292	break;
	293	}
	294	break;
	295	case SR_CONF_SAMPLERATE:
	296	*data = g_variant_new_uint64(state->sample_rate);
	297	ret = SR_OK;
	298	break;
	299	default:
	300	ret = SR_ERR_NA;
	301	}
	302
	303	return ret;
	304	}
	305
	306	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	307	{
	308	unsigned int i;
	309	GVariant *rational[2];
	310	GVariantBuilder gvb;
	311
	312	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	313
	314	for (i = 0; i < n; i++) {
	315	rational[0] = g_variant_new_uint64((*array)[i][0]);
	316	rational[1] = g_variant_new_uint64((*array)[i][1]);
	317
	318	/* FIXME: Valgrind reports a memory leak here. */
	319	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	320	}
	321
	322	return g_variant_builder_end(&gvb);
	323	}
	324
584560f1	325	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	326	const struct sr_channel_group *cg)
8ab929d6 SA	327	{
	328	int ret, cg_type;
	329	unsigned int i, j;
	330	char float_str[30];
	331	struct dev_context *devc;
329733d9	332	const struct scope_config *model;
8ab929d6 SA	333	struct scope_state *state;
	334	const char *tmp;
	335	uint64_t p, q;
	336	double tmp_d;
	337	gboolean update_sample_rate;
	338
	339	if (!sdi \|\| !(devc = sdi->priv))
	340	return SR_ERR_ARG;
	341
	342	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	343	return SR_ERR;
	344
	345	model = devc->model_config;
	346	state = devc->model_state;
	347	update_sample_rate = FALSE;
	348
	349	ret = SR_ERR_NA;
	350
	351	switch (key) {
	352	case SR_CONF_LIMIT_FRAMES:
	353	devc->frame_limit = g_variant_get_uint64(data);
	354	ret = SR_OK;
	355	break;
	356	case SR_CONF_TRIGGER_SOURCE:
	357	tmp = g_variant_get_string(data, NULL);
	358	for (i = 0; (*model->trigger_sources)[i]; i++) {
	359	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	360	continue;
	361	state->trigger_source = i;
	362	/* TODO: A and B trigger support possible? */
	363	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	364	break;
	365	}
	366	break;
	367	case SR_CONF_VDIV:
	368	if (cg_type == CG_NONE) {
	369	sr_err("No channel group specified.");
	370	return SR_ERR_CHANNEL_GROUP;
	371	}
	372
	373	g_variant_get(data, "(tt)", &p, &q);
	374
f3c60fb6 SA	375	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	376	if (p != dlm_vdivs[i][0] \|\|
	377	q != dlm_vdivs[i][1])
8ab929d6	378	continue;
a9308652	379	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	380	if (cg != devc->analog_groups[j - 1])
	381	continue;
	382	state->analog_states[j - 1].vdiv = i;
	383	g_ascii_formatd(float_str, sizeof(float_str),
	384	"%E", (float) p / q);
	385	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	386	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	387	return SR_ERR;
	388
	389	break;
	390	}
	391
	392	ret = SR_OK;
	393	break;
	394	}
	395	break;
	396	case SR_CONF_TIMEBASE:
	397	g_variant_get(data, "(tt)", &p, &q);
	398
f3c60fb6 SA	399	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	400	if (p != dlm_timebases[i][0] \|\|
	401	q != dlm_timebases[i][1])
8ab929d6 SA	402	continue;
	403	state->timebase = i;
	404	g_ascii_formatd(float_str, sizeof(float_str),
	405	"%E", (float) p / q);
	406	ret = dlm_timebase_set(sdi->conn, float_str);
	407	update_sample_rate = TRUE;
	408	break;
	409	}
	410	break;
	411	case SR_CONF_HORIZ_TRIGGERPOS:
	412	tmp_d = g_variant_get_double(data);
	413
	414	/* TODO: Check if the calculation makes sense for the DLM. */
	415	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	416	return SR_ERR;
	417
	418	state->horiz_triggerpos = tmp_d;
	419	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	420	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	421	dlm_timebases[state->timebase][1])
ac10a927	422	* model->num_xdivs;
8ab929d6 SA	423
	424	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	425	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	426	break;
	427	case SR_CONF_TRIGGER_SLOPE:
	428	tmp = g_variant_get_string(data, NULL);
	429
	430	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	431	return SR_ERR_ARG;
	432
	433	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	434	state->trigger_slope = (tmp[0] == 'r') ?
	435	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	436
	437	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	438	break;
	439	case SR_CONF_COUPLING:
	440	if (cg_type == CG_NONE) {
	441	sr_err("No channel group specified.");
	442	return SR_ERR_CHANNEL_GROUP;
	443	}
	444
	445	tmp = g_variant_get_string(data, NULL);
	446
	447	for (i = 0; (*model->coupling_options)[i]; i++) {
	448	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	449	continue;
a9308652	450	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	451	if (cg != devc->analog_groups[j - 1])
	452	continue;
	453	state->analog_states[j-1].coupling = i;
	454
	455	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	456	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	457	return SR_ERR;
	458	break;
	459	}
	460
	461	ret = SR_OK;
	462	break;
	463	}
	464	break;
	465	default:
	466	ret = SR_ERR_NA;
	467	break;
	468	}
	469
	470	if (ret == SR_OK)
	471	ret = sr_scpi_get_opc(sdi->conn);
	472
	473	if (ret == SR_OK && update_sample_rate)
	474	ret = dlm_sample_rate_query(sdi);
	475
	476	return ret;
	477	}
	478
c65a021c SA	479	static int config_channel_set(const struct sr_dev_inst *sdi,
	480	struct sr_channel *ch, unsigned int changes)
	481	{
a9308652	482	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	483	if (changes != SR_CHANNEL_SET_ENABLED)
	484	return SR_ERR_NA;
	485
	486	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	487	}
	488
584560f1	489	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	490	const struct sr_channel_group *cg)
8ab929d6	491	{
cf0280fa AJ	492	int cg_type = CG_NONE;
cf0280fa AJ	493	struct dev_context *devc = NULL;
329733d9	494	const struct scope_config *model = NULL;
8ab929d6	495
f3c60fb6 SA	496	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	497	if (key == SR_CONF_SCAN_OPTIONS) {
	498	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	499	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	500	return SR_OK;
	501	}
8ab929d6	502
f3c60fb6 SA	503	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	504	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	505	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	506	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	507	return SR_OK;
cf0280fa	508	}
8ab929d6	509
f3c60fb6 SA	510	if (!sdi)
	511	return SR_ERR_ARG;
	512
	513	devc = sdi->priv;
	514	model = devc->model_config;
	515
a9308652 UH	516	/*
	517	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	518	* specific to a probe group must be returned.
	519	*/
f3c60fb6 SA	520	if (!cg) {
	521	switch (key) {
	522	case SR_CONF_DEVICE_OPTIONS:
	523	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	524	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	525	return SR_OK;
	526	case SR_CONF_TIMEBASE:
	527	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	528	return SR_OK;
	529	case SR_CONF_TRIGGER_SOURCE:
	530	if (!model)
	531	return SR_ERR_ARG;
	532	data = g_variant_new_strv(model->trigger_sources,
	533	g_strv_length((char *)model->trigger_sources));
	534	return SR_OK;
	535	case SR_CONF_TRIGGER_SLOPE:
	536	*data = g_variant_new_strv(dlm_trigger_slopes,
	537	g_strv_length((char **)dlm_trigger_slopes));
	538	return SR_OK;
	539	case SR_CONF_NUM_HDIV:
49f49cb5	540	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	541	return SR_OK;
	542	default:
	543	return SR_ERR_NA;
	544	}
	545	}
	546
	547	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	548	return SR_ERR;
	549
8ab929d6	550	switch (key) {
8ab929d6	551	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	552	if (cg_type == CG_ANALOG) {
584560f1	553	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	554	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	555	} else if (cg_type == CG_DIGITAL) {
	556	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	557	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	558	} else {
584560f1 BV	559	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	560	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	561	}
	562	break;
	563	case SR_CONF_COUPLING:
	564	if (cg_type == CG_NONE)
	565	return SR_ERR_CHANNEL_GROUP;
	566	data = g_variant_new_strv(model->coupling_options,
ac10a927	567	g_strv_length((char *)model->coupling_options));
8ab929d6	568	break;
8ab929d6 SA	569	case SR_CONF_VDIV:
	570	if (cg_type == CG_NONE)
	571	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	572	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	573	break;
	574	default:
	575	return SR_ERR_NA;
	576	}
	577
	578	return SR_OK;
	579	}
	580
	581	static int dlm_check_channels(GSList *channels)
	582	{
	583	GSList *l;
	584	struct sr_channel *ch;
	585	gboolean enabled_pod1, enabled_chan4;
	586
	587	enabled_pod1 = enabled_chan4 = FALSE;
	588
	589	/* Note: On the DLM2000, CH4 and Logic are shared. */
	590	/* TODO Handle non-DLM2000 models. */
	591	for (l = channels; l; l = l->next) {
	592	ch = l->data;
	593	switch (ch->type) {
	594	case SR_CHANNEL_ANALOG:
	595	if (ch->index == 3)
	596	enabled_chan4 = TRUE;
	597	break;
	598	case SR_CHANNEL_LOGIC:
	599	enabled_pod1 = TRUE;
	600	break;
	601	default:
	602	return SR_ERR;
	603	}
	604	}
	605
	606	if (enabled_pod1 && enabled_chan4)
	607	return SR_ERR;
	608
	609	return SR_OK;
	610	}
	611
695dc859	612	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	613	{
	614	GSList *l;
	615	gboolean digital_added;
	616	struct sr_channel *ch;
	617	struct dev_context *devc;
	618	struct sr_scpi_dev_inst *scpi;
	619
ac10a927 SA	620	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	621	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	622
	623	scpi = sdi->conn;
	624	devc = sdi->priv;
	625	digital_added = FALSE;
	626
	627	g_slist_free(devc->enabled_channels);
	628	devc->enabled_channels = NULL;
	629
	630	for (l = sdi->channels; l; l = l->next) {
	631	ch = l->data;
	632	if (!ch->enabled)
	633	continue;
	634	/* Only add a single digital channel. */
	635	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	636	devc->enabled_channels = g_slist_append(
ac10a927 SA	637	devc->enabled_channels, ch);
	638	if (ch->type == SR_CHANNEL_LOGIC)
	639	digital_added = TRUE;
8ab929d6 SA	640	}
	641	}
	642
	643	if (!devc->enabled_channels)
	644	return SR_ERR;
	645
	646	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	647	sr_err("Invalid channel configuration specified!");
	648	return SR_ERR_NA;
	649	}
	650
af3487ec SA	651	/* Request data for the first enabled channel. */
	652	devc->current_channel = devc->enabled_channels;
	653	dlm_channel_data_request(sdi);
	654
0028d5a1 SA	655	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	656	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	657	dlm_data_receive, (void *)sdi);
	658
	659	return SR_OK;
	660	}
	661
695dc859	662	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	663	{
8ab929d6 SA	664	struct dev_context *devc;
8ab929d6	665
3be42bc2	666	std_session_send_df_end(sdi, LOG_PREFIX);
8ab929d6 SA	667
	668	if (sdi->status != SR_ST_ACTIVE)
	669	return SR_ERR_DEV_CLOSED;
	670
	671	devc = sdi->priv;
	672
	673	devc->num_frames = 0;
	674	g_slist_free(devc->enabled_channels);
	675	devc->enabled_channels = NULL;
af3487ec SA	676
af3487ec SA	677	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	678
	679	return SR_OK;
	680	}
10763937 SA	681
	682	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	683	.name = "yokogawa-dlm",
ac10a927	684	.longname = "Yokogawa DL/DLM",
10763937	685	.api_version = 1,
8ab929d6	686	.init = init,
700d6b64	687	.cleanup = std_cleanup,
8ab929d6	688	.scan = scan,
c01bf34c	689	.dev_list = std_dev_list,
8ab929d6 SA	690	.dev_clear = dev_clear,
	691	.config_get = config_get,
	692	.config_set = config_set,
c65a021c	693	.config_channel_set = config_channel_set,
8ab929d6 SA	694	.config_list = config_list,
	695	.dev_open = dev_open,
	696	.dev_close = dev_close,
	697	.dev_acquisition_start = dev_acquisition_start,
	698	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	699	.context = NULL,
10763937	700	};