[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:
	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 (sr_scpi_open(sdi->conn) != SR_OK)
		return SR_ERR;

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

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	return sr_scpi_close(sdi->conn);
}

/**
 * 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 channel 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 channel 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;

	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);

	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:
7b365c47	112	sr_scpi_hw_info_free(hw_info);
4bf93988	113	sr_dev_inst_free(sdi);
b1f83103	114	g_free(devc);
8ab929d6 SA	115
	116	return NULL;
	117	}
	118
4f840ce9	119	static GSList scan(struct sr_dev_driver di, GSList *options)
8ab929d6	120	{
41812aca	121	return sr_scpi_scan(di->context, options, probe_usbtmc_device);
8ab929d6 SA	122	}
8ab929d6 SA	123
8ab929d6 SA	124	static void clear_helper(void *priv)
	125	{
	126	struct dev_context *devc;
	127
	128	devc = priv;
	129
	130	dlm_scope_state_destroy(devc->model_state);
	131
	132	g_free(devc->analog_groups);
	133	g_free(devc->digital_groups);
	134	g_free(devc);
	135	}
	136
4f840ce9	137	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6 SA	138	{
	139	return std_dev_clear(di, clear_helper);
	140	}
	141
	142	static int dev_open(struct sr_dev_inst *sdi)
	143	{
6402c379	144	if (sr_scpi_open(sdi->conn) != SR_OK)
8ab929d6 SA	145	return SR_ERR;
	146
	147	if (dlm_scope_state_query(sdi) != SR_OK)
	148	return SR_ERR;
	149
8ab929d6 SA	150	return SR_OK;
	151	}
	152
	153	static int dev_close(struct sr_dev_inst *sdi)
	154	{
f1ba6b4b	155	return sr_scpi_close(sdi->conn);
8ab929d6 SA	156	}
8ab929d6 SA	157
8ab929d6 SA	158	/**
	159	* Check which category a given channel group belongs to.
	160	*
	161	* @param devc Our internal device context.
a9308652	162	* @param cg The channel group to check.
8ab929d6	163	*
a9308652 UH	164	* @retval CG_NONE cg is NULL
a9308652 UH	165	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	166	* @retval CG_DIGITAL cg is a digital group
	167	* @retval CG_INVALID cg is something else
	168	*/
	169	static int check_channel_group(struct dev_context *devc,
ac10a927	170	const struct sr_channel_group *cg)
8ab929d6 SA	171	{
8ab929d6 SA	172	unsigned int i;
329733d9	173	const struct scope_config *model;
8ab929d6 SA	174
	175	model = devc->model_config;
	176
	177	if (!cg)
	178	return CG_NONE;
	179
a9308652	180	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	181	if (cg == devc->analog_groups[i])
	182	return CG_ANALOG;
	183
a9308652	184	for (i = 0; i < model->pods; i++)
8ab929d6 SA	185	if (cg == devc->digital_groups[i])
	186	return CG_DIGITAL;
	187
	188	sr_err("Invalid channel group specified.");
	189	return CG_INVALID;
	190	}
	191
584560f1	192	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	193	const struct sr_channel_group *cg)
8ab929d6 SA	194	{
	195	int ret, cg_type;
	196	unsigned int i;
	197	struct dev_context *devc;
329733d9	198	const struct scope_config *model;
8ab929d6 SA	199	struct scope_state *state;
8ab929d6 SA	200
709468ba	201	if (!sdi)
8ab929d6 SA	202	return SR_ERR_ARG;
8ab929d6 SA	203
709468ba UH	204	devc = sdi->priv;
709468ba UH	205
8ab929d6 SA	206	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	207	return SR_ERR;
	208
8ab929d6 SA	209	model = devc->model_config;
	210	state = devc->model_state;
	211
	212	switch (key) {
bf622e6d	213	case SR_CONF_NUM_HDIV:
8ab929d6 SA	214	*data = g_variant_new_int32(model->num_xdivs);
	215	ret = SR_OK;
	216	break;
	217	case SR_CONF_TIMEBASE:
	218	*data = g_variant_new("(tt)",
f3c60fb6 SA	219	dlm_timebases[state->timebase][0],
f3c60fb6 SA	220	dlm_timebases[state->timebase][1]);
8ab929d6 SA	221	ret = SR_OK;
	222	break;
	223	case SR_CONF_NUM_VDIV:
	224	if (cg_type == CG_NONE) {
	225	sr_err("No channel group specified.");
	226	return SR_ERR_CHANNEL_GROUP;
	227	} else if (cg_type == CG_ANALOG) {
	228	*data = g_variant_new_int32(model->num_ydivs);
	229	ret = SR_OK;
	230	break;
	231	} else {
	232	ret = SR_ERR_NA;
	233	}
	234	break;
	235	case SR_CONF_VDIV:
	236	ret = SR_ERR_NA;
	237	if (cg_type == CG_NONE) {
	238	sr_err("No channel group specified.");
	239	return SR_ERR_CHANNEL_GROUP;
	240	} else if (cg_type != CG_ANALOG)
	241	break;
	242
a9308652	243	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	244	if (cg != devc->analog_groups[i])
	245	continue;
	246	*data = g_variant_new("(tt)",
f3c60fb6 SA	247	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	248	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	249	ret = SR_OK;
	250	break;
	251	}
	252	break;
	253	case SR_CONF_TRIGGER_SOURCE:
	254	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	255	ret = SR_OK;
	256	break;
	257	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	258	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	259	ret = SR_OK;
	260	break;
	261	case SR_CONF_HORIZ_TRIGGERPOS:
	262	*data = g_variant_new_double(state->horiz_triggerpos);
	263	ret = SR_OK;
	264	break;
	265	case SR_CONF_COUPLING:
	266	ret = SR_ERR_NA;
	267	if (cg_type == CG_NONE) {
	268	sr_err("No channel group specified.");
	269	return SR_ERR_CHANNEL_GROUP;
	270	} else if (cg_type != CG_ANALOG)
	271	break;
	272
a9308652	273	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	274	if (cg != devc->analog_groups[i])
	275	continue;
	276	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	277	ret = SR_OK;
	278	break;
	279	}
	280	break;
	281	case SR_CONF_SAMPLERATE:
	282	*data = g_variant_new_uint64(state->sample_rate);
	283	ret = SR_OK;
	284	break;
	285	default:
	286	ret = SR_ERR_NA;
	287	}
	288
	289	return ret;
	290	}
	291
	292	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	293	{
	294	unsigned int i;
	295	GVariant *rational[2];
	296	GVariantBuilder gvb;
	297
	298	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	299
	300	for (i = 0; i < n; i++) {
	301	rational[0] = g_variant_new_uint64((*array)[i][0]);
	302	rational[1] = g_variant_new_uint64((*array)[i][1]);
	303
	304	/* FIXME: Valgrind reports a memory leak here. */
	305	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	306	}
	307
	308	return g_variant_builder_end(&gvb);
	309	}
	310
584560f1	311	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	312	const struct sr_channel_group *cg)
8ab929d6 SA	313	{
	314	int ret, cg_type;
	315	unsigned int i, j;
	316	char float_str[30];
	317	struct dev_context *devc;
329733d9	318	const struct scope_config *model;
8ab929d6 SA	319	struct scope_state *state;
	320	const char *tmp;
	321	uint64_t p, q;
	322	double tmp_d;
	323	gboolean update_sample_rate;
	324
	325	if (!sdi \|\| !(devc = sdi->priv))
	326	return SR_ERR_ARG;
	327
	328	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	329	return SR_ERR;
	330
	331	model = devc->model_config;
	332	state = devc->model_state;
	333	update_sample_rate = FALSE;
	334
	335	ret = SR_ERR_NA;
	336
	337	switch (key) {
	338	case SR_CONF_LIMIT_FRAMES:
	339	devc->frame_limit = g_variant_get_uint64(data);
	340	ret = SR_OK;
	341	break;
	342	case SR_CONF_TRIGGER_SOURCE:
	343	tmp = g_variant_get_string(data, NULL);
	344	for (i = 0; (*model->trigger_sources)[i]; i++) {
	345	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	346	continue;
	347	state->trigger_source = i;
	348	/* TODO: A and B trigger support possible? */
	349	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	350	break;
	351	}
	352	break;
	353	case SR_CONF_VDIV:
	354	if (cg_type == CG_NONE) {
	355	sr_err("No channel group specified.");
	356	return SR_ERR_CHANNEL_GROUP;
	357	}
	358
	359	g_variant_get(data, "(tt)", &p, &q);
	360
f3c60fb6 SA	361	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	362	if (p != dlm_vdivs[i][0] \|\|
	363	q != dlm_vdivs[i][1])
8ab929d6	364	continue;
a9308652	365	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	366	if (cg != devc->analog_groups[j - 1])
	367	continue;
	368	state->analog_states[j - 1].vdiv = i;
	369	g_ascii_formatd(float_str, sizeof(float_str),
	370	"%E", (float) p / q);
	371	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	372	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	373	return SR_ERR;
	374
	375	break;
	376	}
	377
	378	ret = SR_OK;
	379	break;
	380	}
	381	break;
	382	case SR_CONF_TIMEBASE:
	383	g_variant_get(data, "(tt)", &p, &q);
	384
f3c60fb6 SA	385	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	386	if (p != dlm_timebases[i][0] \|\|
	387	q != dlm_timebases[i][1])
8ab929d6 SA	388	continue;
	389	state->timebase = i;
	390	g_ascii_formatd(float_str, sizeof(float_str),
	391	"%E", (float) p / q);
	392	ret = dlm_timebase_set(sdi->conn, float_str);
	393	update_sample_rate = TRUE;
	394	break;
	395	}
	396	break;
	397	case SR_CONF_HORIZ_TRIGGERPOS:
	398	tmp_d = g_variant_get_double(data);
	399
	400	/* TODO: Check if the calculation makes sense for the DLM. */
	401	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	402	return SR_ERR;
	403
	404	state->horiz_triggerpos = tmp_d;
	405	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	406	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	407	dlm_timebases[state->timebase][1])
ac10a927	408	* model->num_xdivs;
8ab929d6 SA	409
	410	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	411	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	412	break;
	413	case SR_CONF_TRIGGER_SLOPE:
	414	tmp = g_variant_get_string(data, NULL);
	415
	416	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	417	return SR_ERR_ARG;
	418
	419	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	420	state->trigger_slope = (tmp[0] == 'r') ?
	421	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	422
	423	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	424	break;
	425	case SR_CONF_COUPLING:
	426	if (cg_type == CG_NONE) {
	427	sr_err("No channel group specified.");
	428	return SR_ERR_CHANNEL_GROUP;
	429	}
	430
	431	tmp = g_variant_get_string(data, NULL);
	432
	433	for (i = 0; (*model->coupling_options)[i]; i++) {
	434	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	435	continue;
a9308652	436	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	437	if (cg != devc->analog_groups[j - 1])
	438	continue;
	439	state->analog_states[j-1].coupling = i;
	440
	441	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	442	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	443	return SR_ERR;
	444	break;
	445	}
	446
	447	ret = SR_OK;
	448	break;
	449	}
	450	break;
	451	default:
	452	ret = SR_ERR_NA;
	453	break;
	454	}
	455
	456	if (ret == SR_OK)
	457	ret = sr_scpi_get_opc(sdi->conn);
	458
	459	if (ret == SR_OK && update_sample_rate)
	460	ret = dlm_sample_rate_query(sdi);
	461
	462	return ret;
	463	}
	464
c65a021c SA	465	static int config_channel_set(const struct sr_dev_inst *sdi,
	466	struct sr_channel *ch, unsigned int changes)
	467	{
a9308652	468	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	469	if (changes != SR_CHANNEL_SET_ENABLED)
	470	return SR_ERR_NA;
	471
	472	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	473	}
	474
584560f1	475	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	476	const struct sr_channel_group *cg)
8ab929d6	477	{
cf0280fa AJ	478	int cg_type = CG_NONE;
cf0280fa AJ	479	struct dev_context *devc = NULL;
329733d9	480	const struct scope_config *model = NULL;
8ab929d6	481
9a512113	482	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or channel group. */
f3c60fb6 SA	483	if (key == SR_CONF_SCAN_OPTIONS) {
	484	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	485	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	486	return SR_OK;
	487	}
8ab929d6	488
f3c60fb6 SA	489	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	490	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	491	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	492	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	493	return SR_OK;
cf0280fa	494	}
8ab929d6	495
f3c60fb6 SA	496	if (!sdi)
	497	return SR_ERR_ARG;
	498
	499	devc = sdi->priv;
	500	model = devc->model_config;
	501
a9308652 UH	502	/*
a9308652 UH	503	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
9a512113	504	* specific to a channel group must be returned.
a9308652	505	*/
f3c60fb6 SA	506	if (!cg) {
	507	switch (key) {
	508	case SR_CONF_DEVICE_OPTIONS:
	509	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	510	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	511	return SR_OK;
	512	case SR_CONF_TIMEBASE:
	513	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	514	return SR_OK;
	515	case SR_CONF_TRIGGER_SOURCE:
	516	if (!model)
	517	return SR_ERR_ARG;
	518	data = g_variant_new_strv(model->trigger_sources,
	519	g_strv_length((char *)model->trigger_sources));
	520	return SR_OK;
	521	case SR_CONF_TRIGGER_SLOPE:
	522	*data = g_variant_new_strv(dlm_trigger_slopes,
	523	g_strv_length((char **)dlm_trigger_slopes));
	524	return SR_OK;
	525	case SR_CONF_NUM_HDIV:
49f49cb5	526	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	527	return SR_OK;
	528	default:
	529	return SR_ERR_NA;
	530	}
	531	}
	532
	533	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	534	return SR_ERR;
	535
8ab929d6	536	switch (key) {
8ab929d6	537	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	538	if (cg_type == CG_ANALOG) {
584560f1	539	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	540	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	541	} else if (cg_type == CG_DIGITAL) {
	542	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	543	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	544	} else {
584560f1 BV	545	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	546	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	547	}
	548	break;
	549	case SR_CONF_COUPLING:
	550	if (cg_type == CG_NONE)
	551	return SR_ERR_CHANNEL_GROUP;
	552	data = g_variant_new_strv(model->coupling_options,
ac10a927	553	g_strv_length((char *)model->coupling_options));
8ab929d6	554	break;
8ab929d6 SA	555	case SR_CONF_VDIV:
	556	if (cg_type == CG_NONE)
	557	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	558	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	559	break;
	560	default:
	561	return SR_ERR_NA;
	562	}
	563
	564	return SR_OK;
	565	}
	566
	567	static int dlm_check_channels(GSList *channels)
	568	{
	569	GSList *l;
	570	struct sr_channel *ch;
	571	gboolean enabled_pod1, enabled_chan4;
	572
	573	enabled_pod1 = enabled_chan4 = FALSE;
	574
	575	/* Note: On the DLM2000, CH4 and Logic are shared. */
	576	/* TODO Handle non-DLM2000 models. */
	577	for (l = channels; l; l = l->next) {
	578	ch = l->data;
	579	switch (ch->type) {
	580	case SR_CHANNEL_ANALOG:
	581	if (ch->index == 3)
	582	enabled_chan4 = TRUE;
	583	break;
	584	case SR_CHANNEL_LOGIC:
	585	enabled_pod1 = TRUE;
	586	break;
	587	default:
	588	return SR_ERR;
	589	}
	590	}
	591
	592	if (enabled_pod1 && enabled_chan4)
	593	return SR_ERR;
	594
	595	return SR_OK;
	596	}
	597
695dc859	598	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	599	{
	600	GSList *l;
	601	gboolean digital_added;
	602	struct sr_channel *ch;
	603	struct dev_context *devc;
	604	struct sr_scpi_dev_inst *scpi;
	605
8ab929d6 SA	606	scpi = sdi->conn;
	607	devc = sdi->priv;
	608	digital_added = FALSE;
	609
	610	g_slist_free(devc->enabled_channels);
	611	devc->enabled_channels = NULL;
	612
	613	for (l = sdi->channels; l; l = l->next) {
	614	ch = l->data;
	615	if (!ch->enabled)
	616	continue;
	617	/* Only add a single digital channel. */
	618	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	619	devc->enabled_channels = g_slist_append(
ac10a927 SA	620	devc->enabled_channels, ch);
	621	if (ch->type == SR_CHANNEL_LOGIC)
	622	digital_added = TRUE;
8ab929d6 SA	623	}
	624	}
	625
	626	if (!devc->enabled_channels)
	627	return SR_ERR;
	628
	629	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	630	sr_err("Invalid channel configuration specified!");
	631	return SR_ERR_NA;
	632	}
	633
af3487ec SA	634	/* Request data for the first enabled channel. */
	635	devc->current_channel = devc->enabled_channels;
	636	dlm_channel_data_request(sdi);
	637
0028d5a1 SA	638	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	639	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	640	dlm_data_receive, (void *)sdi);
	641
	642	return SR_OK;
	643	}
	644
695dc859	645	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	646	{
8ab929d6 SA	647	struct dev_context *devc;
8ab929d6	648
bee2b016	649	std_session_send_df_end(sdi);
8ab929d6	650
8ab929d6 SA	651	devc = sdi->priv;
	652
	653	devc->num_frames = 0;
	654	g_slist_free(devc->enabled_channels);
	655	devc->enabled_channels = NULL;
af3487ec SA	656
af3487ec SA	657	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	658
	659	return SR_OK;
	660	}
10763937	661
dd5c48a6	662	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	663	.name = "yokogawa-dlm",
ac10a927	664	.longname = "Yokogawa DL/DLM",
10763937	665	.api_version = 1,
c2fdcc25	666	.init = std_init,
700d6b64	667	.cleanup = std_cleanup,
8ab929d6	668	.scan = scan,
c01bf34c	669	.dev_list = std_dev_list,
8ab929d6 SA	670	.dev_clear = dev_clear,
	671	.config_get = config_get,
	672	.config_set = config_set,
c65a021c	673	.config_channel_set = config_channel_set,
8ab929d6 SA	674	.config_list = config_list,
	675	.dev_open = dev_open,
	676	.dev_close = dev_close,
	677	.dev_acquisition_start = dev_acquisition_start,
	678	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	679	.context = NULL,
10763937	680	};
dd5c48a6	681	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);