[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_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 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)
		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, 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;
}

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,
	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
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);
	114	if (sdi)
	115	sr_dev_inst_free(sdi);
b1f83103	116	g_free(devc);
8ab929d6 SA	117
	118	return NULL;
	119	}
	120
4f840ce9	121	static GSList scan(struct sr_dev_driver di, GSList *options)
8ab929d6	122	{
41812aca	123	return sr_scpi_scan(di->context, options, probe_usbtmc_device);
8ab929d6 SA	124	}
8ab929d6 SA	125
8ab929d6 SA	126	static void clear_helper(void *priv)
	127	{
	128	struct dev_context *devc;
	129
	130	devc = priv;
	131
	132	dlm_scope_state_destroy(devc->model_state);
	133
	134	g_free(devc->analog_groups);
	135	g_free(devc->digital_groups);
	136	g_free(devc);
	137	}
	138
4f840ce9	139	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6 SA	140	{
	141	return std_dev_clear(di, clear_helper);
	142	}
	143
	144	static int dev_open(struct sr_dev_inst *sdi)
	145	{
	146	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	147	return SR_ERR;
	148
	149	if (dlm_scope_state_query(sdi) != SR_OK)
	150	return SR_ERR;
	151
	152	sdi->status = SR_ST_ACTIVE;
	153
	154	return SR_OK;
	155	}
	156
	157	static int dev_close(struct sr_dev_inst *sdi)
	158	{
	159	if (sdi->status == SR_ST_INACTIVE)
	160	return SR_OK;
	161
	162	sr_scpi_close(sdi->conn);
	163
	164	sdi->status = SR_ST_INACTIVE;
	165
	166	return SR_OK;
	167	}
	168
8ab929d6 SA	169	/**
	170	* Check which category a given channel group belongs to.
	171	*
	172	* @param devc Our internal device context.
a9308652	173	* @param cg The channel group to check.
8ab929d6	174	*
a9308652 UH	175	* @retval CG_NONE cg is NULL
a9308652 UH	176	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	177	* @retval CG_DIGITAL cg is a digital group
	178	* @retval CG_INVALID cg is something else
	179	*/
	180	static int check_channel_group(struct dev_context *devc,
ac10a927	181	const struct sr_channel_group *cg)
8ab929d6 SA	182	{
8ab929d6 SA	183	unsigned int i;
329733d9	184	const struct scope_config *model;
8ab929d6 SA	185
	186	model = devc->model_config;
	187
	188	if (!cg)
	189	return CG_NONE;
	190
a9308652	191	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	192	if (cg == devc->analog_groups[i])
	193	return CG_ANALOG;
	194
a9308652	195	for (i = 0; i < model->pods; i++)
8ab929d6 SA	196	if (cg == devc->digital_groups[i])
	197	return CG_DIGITAL;
	198
	199	sr_err("Invalid channel group specified.");
	200	return CG_INVALID;
	201	}
	202
584560f1	203	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	204	const struct sr_channel_group *cg)
8ab929d6 SA	205	{
	206	int ret, cg_type;
	207	unsigned int i;
	208	struct dev_context *devc;
329733d9	209	const struct scope_config *model;
8ab929d6 SA	210	struct scope_state *state;
8ab929d6 SA	211
709468ba	212	if (!sdi)
8ab929d6 SA	213	return SR_ERR_ARG;
8ab929d6 SA	214
709468ba UH	215	devc = sdi->priv;
709468ba UH	216
8ab929d6 SA	217	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	218	return SR_ERR;
	219
8ab929d6 SA	220	model = devc->model_config;
	221	state = devc->model_state;
	222
	223	switch (key) {
bf622e6d	224	case SR_CONF_NUM_HDIV:
8ab929d6 SA	225	*data = g_variant_new_int32(model->num_xdivs);
	226	ret = SR_OK;
	227	break;
	228	case SR_CONF_TIMEBASE:
	229	*data = g_variant_new("(tt)",
f3c60fb6 SA	230	dlm_timebases[state->timebase][0],
f3c60fb6 SA	231	dlm_timebases[state->timebase][1]);
8ab929d6 SA	232	ret = SR_OK;
	233	break;
	234	case SR_CONF_NUM_VDIV:
	235	if (cg_type == CG_NONE) {
	236	sr_err("No channel group specified.");
	237	return SR_ERR_CHANNEL_GROUP;
	238	} else if (cg_type == CG_ANALOG) {
	239	*data = g_variant_new_int32(model->num_ydivs);
	240	ret = SR_OK;
	241	break;
	242	} else {
	243	ret = SR_ERR_NA;
	244	}
	245	break;
	246	case SR_CONF_VDIV:
	247	ret = SR_ERR_NA;
	248	if (cg_type == CG_NONE) {
	249	sr_err("No channel group specified.");
	250	return SR_ERR_CHANNEL_GROUP;
	251	} else if (cg_type != CG_ANALOG)
	252	break;
	253
a9308652	254	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	255	if (cg != devc->analog_groups[i])
	256	continue;
	257	*data = g_variant_new("(tt)",
f3c60fb6 SA	258	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	259	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	260	ret = SR_OK;
	261	break;
	262	}
	263	break;
	264	case SR_CONF_TRIGGER_SOURCE:
	265	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	266	ret = SR_OK;
	267	break;
	268	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	269	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	270	ret = SR_OK;
	271	break;
	272	case SR_CONF_HORIZ_TRIGGERPOS:
	273	*data = g_variant_new_double(state->horiz_triggerpos);
	274	ret = SR_OK;
	275	break;
	276	case SR_CONF_COUPLING:
	277	ret = SR_ERR_NA;
	278	if (cg_type == CG_NONE) {
	279	sr_err("No channel group specified.");
	280	return SR_ERR_CHANNEL_GROUP;
	281	} else if (cg_type != CG_ANALOG)
	282	break;
	283
a9308652	284	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	285	if (cg != devc->analog_groups[i])
	286	continue;
	287	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	288	ret = SR_OK;
	289	break;
	290	}
	291	break;
	292	case SR_CONF_SAMPLERATE:
	293	*data = g_variant_new_uint64(state->sample_rate);
	294	ret = SR_OK;
	295	break;
	296	default:
	297	ret = SR_ERR_NA;
	298	}
	299
	300	return ret;
	301	}
	302
	303	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	304	{
	305	unsigned int i;
	306	GVariant *rational[2];
	307	GVariantBuilder gvb;
	308
	309	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	310
	311	for (i = 0; i < n; i++) {
	312	rational[0] = g_variant_new_uint64((*array)[i][0]);
	313	rational[1] = g_variant_new_uint64((*array)[i][1]);
	314
	315	/* FIXME: Valgrind reports a memory leak here. */
	316	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	317	}
	318
	319	return g_variant_builder_end(&gvb);
	320	}
	321
584560f1	322	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	323	const struct sr_channel_group *cg)
8ab929d6 SA	324	{
	325	int ret, cg_type;
	326	unsigned int i, j;
	327	char float_str[30];
	328	struct dev_context *devc;
329733d9	329	const struct scope_config *model;
8ab929d6 SA	330	struct scope_state *state;
	331	const char *tmp;
	332	uint64_t p, q;
	333	double tmp_d;
	334	gboolean update_sample_rate;
	335
	336	if (!sdi \|\| !(devc = sdi->priv))
	337	return SR_ERR_ARG;
	338
	339	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	340	return SR_ERR;
	341
	342	model = devc->model_config;
	343	state = devc->model_state;
	344	update_sample_rate = FALSE;
	345
	346	ret = SR_ERR_NA;
	347
	348	switch (key) {
	349	case SR_CONF_LIMIT_FRAMES:
	350	devc->frame_limit = g_variant_get_uint64(data);
	351	ret = SR_OK;
	352	break;
	353	case SR_CONF_TRIGGER_SOURCE:
	354	tmp = g_variant_get_string(data, NULL);
	355	for (i = 0; (*model->trigger_sources)[i]; i++) {
	356	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	357	continue;
	358	state->trigger_source = i;
	359	/* TODO: A and B trigger support possible? */
	360	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	361	break;
	362	}
	363	break;
	364	case SR_CONF_VDIV:
	365	if (cg_type == CG_NONE) {
	366	sr_err("No channel group specified.");
	367	return SR_ERR_CHANNEL_GROUP;
	368	}
	369
	370	g_variant_get(data, "(tt)", &p, &q);
	371
f3c60fb6 SA	372	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	373	if (p != dlm_vdivs[i][0] \|\|
	374	q != dlm_vdivs[i][1])
8ab929d6	375	continue;
a9308652	376	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	377	if (cg != devc->analog_groups[j - 1])
	378	continue;
	379	state->analog_states[j - 1].vdiv = i;
	380	g_ascii_formatd(float_str, sizeof(float_str),
	381	"%E", (float) p / q);
	382	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	383	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	384	return SR_ERR;
	385
	386	break;
	387	}
	388
	389	ret = SR_OK;
	390	break;
	391	}
	392	break;
	393	case SR_CONF_TIMEBASE:
	394	g_variant_get(data, "(tt)", &p, &q);
	395
f3c60fb6 SA	396	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	397	if (p != dlm_timebases[i][0] \|\|
	398	q != dlm_timebases[i][1])
8ab929d6 SA	399	continue;
	400	state->timebase = i;
	401	g_ascii_formatd(float_str, sizeof(float_str),
	402	"%E", (float) p / q);
	403	ret = dlm_timebase_set(sdi->conn, float_str);
	404	update_sample_rate = TRUE;
	405	break;
	406	}
	407	break;
	408	case SR_CONF_HORIZ_TRIGGERPOS:
	409	tmp_d = g_variant_get_double(data);
	410
	411	/* TODO: Check if the calculation makes sense for the DLM. */
	412	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	413	return SR_ERR;
	414
	415	state->horiz_triggerpos = tmp_d;
	416	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	417	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	418	dlm_timebases[state->timebase][1])
ac10a927	419	* model->num_xdivs;
8ab929d6 SA	420
	421	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	422	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	423	break;
	424	case SR_CONF_TRIGGER_SLOPE:
	425	tmp = g_variant_get_string(data, NULL);
	426
	427	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	428	return SR_ERR_ARG;
	429
	430	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	431	state->trigger_slope = (tmp[0] == 'r') ?
	432	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	433
	434	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	435	break;
	436	case SR_CONF_COUPLING:
	437	if (cg_type == CG_NONE) {
	438	sr_err("No channel group specified.");
	439	return SR_ERR_CHANNEL_GROUP;
	440	}
	441
	442	tmp = g_variant_get_string(data, NULL);
	443
	444	for (i = 0; (*model->coupling_options)[i]; i++) {
	445	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	446	continue;
a9308652	447	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	448	if (cg != devc->analog_groups[j - 1])
	449	continue;
	450	state->analog_states[j-1].coupling = i;
	451
	452	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	453	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	454	return SR_ERR;
	455	break;
	456	}
	457
	458	ret = SR_OK;
	459	break;
	460	}
	461	break;
	462	default:
	463	ret = SR_ERR_NA;
	464	break;
	465	}
	466
	467	if (ret == SR_OK)
	468	ret = sr_scpi_get_opc(sdi->conn);
	469
	470	if (ret == SR_OK && update_sample_rate)
	471	ret = dlm_sample_rate_query(sdi);
	472
	473	return ret;
	474	}
	475
c65a021c SA	476	static int config_channel_set(const struct sr_dev_inst *sdi,
	477	struct sr_channel *ch, unsigned int changes)
	478	{
a9308652	479	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	480	if (changes != SR_CHANNEL_SET_ENABLED)
	481	return SR_ERR_NA;
	482
	483	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	484	}
	485
584560f1	486	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	487	const struct sr_channel_group *cg)
8ab929d6	488	{
cf0280fa AJ	489	int cg_type = CG_NONE;
cf0280fa AJ	490	struct dev_context *devc = NULL;
329733d9	491	const struct scope_config *model = NULL;
8ab929d6	492
f3c60fb6 SA	493	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	494	if (key == SR_CONF_SCAN_OPTIONS) {
	495	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	496	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	497	return SR_OK;
	498	}
8ab929d6	499
f3c60fb6 SA	500	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	501	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	502	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	503	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	504	return SR_OK;
cf0280fa	505	}
8ab929d6	506
f3c60fb6 SA	507	if (!sdi)
	508	return SR_ERR_ARG;
	509
	510	devc = sdi->priv;
	511	model = devc->model_config;
	512
a9308652 UH	513	/*
	514	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	515	* specific to a probe group must be returned.
	516	*/
f3c60fb6 SA	517	if (!cg) {
	518	switch (key) {
	519	case SR_CONF_DEVICE_OPTIONS:
	520	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	521	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	522	return SR_OK;
	523	case SR_CONF_TIMEBASE:
	524	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	525	return SR_OK;
	526	case SR_CONF_TRIGGER_SOURCE:
	527	if (!model)
	528	return SR_ERR_ARG;
	529	data = g_variant_new_strv(model->trigger_sources,
	530	g_strv_length((char *)model->trigger_sources));
	531	return SR_OK;
	532	case SR_CONF_TRIGGER_SLOPE:
	533	*data = g_variant_new_strv(dlm_trigger_slopes,
	534	g_strv_length((char **)dlm_trigger_slopes));
	535	return SR_OK;
	536	case SR_CONF_NUM_HDIV:
49f49cb5	537	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	538	return SR_OK;
	539	default:
	540	return SR_ERR_NA;
	541	}
	542	}
	543
	544	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	545	return SR_ERR;
	546
8ab929d6	547	switch (key) {
8ab929d6	548	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	549	if (cg_type == CG_ANALOG) {
584560f1	550	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	551	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	552	} else if (cg_type == CG_DIGITAL) {
	553	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	554	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	555	} else {
584560f1 BV	556	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	557	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	558	}
	559	break;
	560	case SR_CONF_COUPLING:
	561	if (cg_type == CG_NONE)
	562	return SR_ERR_CHANNEL_GROUP;
	563	data = g_variant_new_strv(model->coupling_options,
ac10a927	564	g_strv_length((char *)model->coupling_options));
8ab929d6	565	break;
8ab929d6 SA	566	case SR_CONF_VDIV:
	567	if (cg_type == CG_NONE)
	568	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	569	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	570	break;
	571	default:
	572	return SR_ERR_NA;
	573	}
	574
	575	return SR_OK;
	576	}
	577
	578	static int dlm_check_channels(GSList *channels)
	579	{
	580	GSList *l;
	581	struct sr_channel *ch;
	582	gboolean enabled_pod1, enabled_chan4;
	583
	584	enabled_pod1 = enabled_chan4 = FALSE;
	585
	586	/* Note: On the DLM2000, CH4 and Logic are shared. */
	587	/* TODO Handle non-DLM2000 models. */
	588	for (l = channels; l; l = l->next) {
	589	ch = l->data;
	590	switch (ch->type) {
	591	case SR_CHANNEL_ANALOG:
	592	if (ch->index == 3)
	593	enabled_chan4 = TRUE;
	594	break;
	595	case SR_CHANNEL_LOGIC:
	596	enabled_pod1 = TRUE;
	597	break;
	598	default:
	599	return SR_ERR;
	600	}
	601	}
	602
	603	if (enabled_pod1 && enabled_chan4)
	604	return SR_ERR;
	605
	606	return SR_OK;
	607	}
	608
695dc859	609	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	610	{
	611	GSList *l;
	612	gboolean digital_added;
	613	struct sr_channel *ch;
	614	struct dev_context *devc;
	615	struct sr_scpi_dev_inst *scpi;
	616
ac10a927 SA	617	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	618	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	619
	620	scpi = sdi->conn;
	621	devc = sdi->priv;
	622	digital_added = FALSE;
	623
	624	g_slist_free(devc->enabled_channels);
	625	devc->enabled_channels = NULL;
	626
	627	for (l = sdi->channels; l; l = l->next) {
	628	ch = l->data;
	629	if (!ch->enabled)
	630	continue;
	631	/* Only add a single digital channel. */
	632	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	633	devc->enabled_channels = g_slist_append(
ac10a927 SA	634	devc->enabled_channels, ch);
	635	if (ch->type == SR_CHANNEL_LOGIC)
	636	digital_added = TRUE;
8ab929d6 SA	637	}
	638	}
	639
	640	if (!devc->enabled_channels)
	641	return SR_ERR;
	642
	643	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	644	sr_err("Invalid channel configuration specified!");
	645	return SR_ERR_NA;
	646	}
	647
af3487ec SA	648	/* Request data for the first enabled channel. */
	649	devc->current_channel = devc->enabled_channels;
	650	dlm_channel_data_request(sdi);
	651
0028d5a1 SA	652	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	653	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	654	dlm_data_receive, (void *)sdi);
	655
	656	return SR_OK;
	657	}
	658
695dc859	659	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	660	{
8ab929d6 SA	661	struct dev_context *devc;
8ab929d6	662
3be42bc2	663	std_session_send_df_end(sdi, LOG_PREFIX);
8ab929d6 SA	664
	665	if (sdi->status != SR_ST_ACTIVE)
	666	return SR_ERR_DEV_CLOSED;
	667
	668	devc = sdi->priv;
	669
	670	devc->num_frames = 0;
	671	g_slist_free(devc->enabled_channels);
	672	devc->enabled_channels = NULL;
af3487ec SA	673
af3487ec SA	674	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	675
	676	return SR_OK;
	677	}
10763937	678
dd5c48a6	679	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	680	.name = "yokogawa-dlm",
ac10a927	681	.longname = "Yokogawa DL/DLM",
10763937	682	.api_version = 1,
c2fdcc25	683	.init = std_init,
700d6b64	684	.cleanup = std_cleanup,
8ab929d6	685	.scan = scan,
c01bf34c	686	.dev_list = std_dev_list,
8ab929d6 SA	687	.dev_clear = dev_clear,
	688	.config_get = config_get,
	689	.config_set = config_set,
c65a021c	690	.config_channel_set = config_channel_set,
8ab929d6 SA	691	.config_list = config_list,
	692	.dev_open = dev_open,
	693	.dev_close = dev_close,
	694	.dev_acquisition_start = dev_acquisition_start,
	695	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	696	.context = NULL,
10763937	697	};
dd5c48a6	698	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);