[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)
{
	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 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	{
8ab929d6 SA	155	sr_scpi_close(sdi->conn);
	156
	157	sdi->status = SR_ST_INACTIVE;
	158
	159	return SR_OK;
	160	}
	161
8ab929d6 SA	162	/**
	163	* Check which category a given channel group belongs to.
	164	*
	165	* @param devc Our internal device context.
a9308652	166	* @param cg The channel group to check.
8ab929d6	167	*
a9308652 UH	168	* @retval CG_NONE cg is NULL
a9308652 UH	169	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	170	* @retval CG_DIGITAL cg is a digital group
	171	* @retval CG_INVALID cg is something else
	172	*/
	173	static int check_channel_group(struct dev_context *devc,
ac10a927	174	const struct sr_channel_group *cg)
8ab929d6 SA	175	{
8ab929d6 SA	176	unsigned int i;
329733d9	177	const struct scope_config *model;
8ab929d6 SA	178
	179	model = devc->model_config;
	180
	181	if (!cg)
	182	return CG_NONE;
	183
a9308652	184	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	185	if (cg == devc->analog_groups[i])
	186	return CG_ANALOG;
	187
a9308652	188	for (i = 0; i < model->pods; i++)
8ab929d6 SA	189	if (cg == devc->digital_groups[i])
	190	return CG_DIGITAL;
	191
	192	sr_err("Invalid channel group specified.");
	193	return CG_INVALID;
	194	}
	195
584560f1	196	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	197	const struct sr_channel_group *cg)
8ab929d6 SA	198	{
	199	int ret, cg_type;
	200	unsigned int i;
	201	struct dev_context *devc;
329733d9	202	const struct scope_config *model;
8ab929d6 SA	203	struct scope_state *state;
8ab929d6 SA	204
709468ba	205	if (!sdi)
8ab929d6 SA	206	return SR_ERR_ARG;
8ab929d6 SA	207
709468ba UH	208	devc = sdi->priv;
709468ba UH	209
8ab929d6 SA	210	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	211	return SR_ERR;
	212
8ab929d6 SA	213	model = devc->model_config;
	214	state = devc->model_state;
	215
	216	switch (key) {
bf622e6d	217	case SR_CONF_NUM_HDIV:
8ab929d6 SA	218	*data = g_variant_new_int32(model->num_xdivs);
	219	ret = SR_OK;
	220	break;
	221	case SR_CONF_TIMEBASE:
	222	*data = g_variant_new("(tt)",
f3c60fb6 SA	223	dlm_timebases[state->timebase][0],
f3c60fb6 SA	224	dlm_timebases[state->timebase][1]);
8ab929d6 SA	225	ret = SR_OK;
	226	break;
	227	case SR_CONF_NUM_VDIV:
	228	if (cg_type == CG_NONE) {
	229	sr_err("No channel group specified.");
	230	return SR_ERR_CHANNEL_GROUP;
	231	} else if (cg_type == CG_ANALOG) {
	232	*data = g_variant_new_int32(model->num_ydivs);
	233	ret = SR_OK;
	234	break;
	235	} else {
	236	ret = SR_ERR_NA;
	237	}
	238	break;
	239	case SR_CONF_VDIV:
	240	ret = SR_ERR_NA;
	241	if (cg_type == CG_NONE) {
	242	sr_err("No channel group specified.");
	243	return SR_ERR_CHANNEL_GROUP;
	244	} else if (cg_type != CG_ANALOG)
	245	break;
	246
a9308652	247	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	248	if (cg != devc->analog_groups[i])
	249	continue;
	250	*data = g_variant_new("(tt)",
f3c60fb6 SA	251	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	252	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	253	ret = SR_OK;
	254	break;
	255	}
	256	break;
	257	case SR_CONF_TRIGGER_SOURCE:
	258	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	259	ret = SR_OK;
	260	break;
	261	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	262	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	263	ret = SR_OK;
	264	break;
	265	case SR_CONF_HORIZ_TRIGGERPOS:
	266	*data = g_variant_new_double(state->horiz_triggerpos);
	267	ret = SR_OK;
	268	break;
	269	case SR_CONF_COUPLING:
	270	ret = SR_ERR_NA;
	271	if (cg_type == CG_NONE) {
	272	sr_err("No channel group specified.");
	273	return SR_ERR_CHANNEL_GROUP;
	274	} else if (cg_type != CG_ANALOG)
	275	break;
	276
a9308652	277	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	278	if (cg != devc->analog_groups[i])
	279	continue;
	280	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	281	ret = SR_OK;
	282	break;
	283	}
	284	break;
	285	case SR_CONF_SAMPLERATE:
	286	*data = g_variant_new_uint64(state->sample_rate);
	287	ret = SR_OK;
	288	break;
	289	default:
	290	ret = SR_ERR_NA;
	291	}
	292
	293	return ret;
	294	}
	295
	296	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	297	{
	298	unsigned int i;
	299	GVariant *rational[2];
	300	GVariantBuilder gvb;
	301
	302	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	303
	304	for (i = 0; i < n; i++) {
	305	rational[0] = g_variant_new_uint64((*array)[i][0]);
	306	rational[1] = g_variant_new_uint64((*array)[i][1]);
	307
	308	/* FIXME: Valgrind reports a memory leak here. */
	309	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	310	}
	311
	312	return g_variant_builder_end(&gvb);
	313	}
	314
584560f1	315	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	316	const struct sr_channel_group *cg)
8ab929d6 SA	317	{
	318	int ret, cg_type;
	319	unsigned int i, j;
	320	char float_str[30];
	321	struct dev_context *devc;
329733d9	322	const struct scope_config *model;
8ab929d6 SA	323	struct scope_state *state;
	324	const char *tmp;
	325	uint64_t p, q;
	326	double tmp_d;
	327	gboolean update_sample_rate;
	328
	329	if (!sdi \|\| !(devc = sdi->priv))
	330	return SR_ERR_ARG;
	331
	332	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	333	return SR_ERR;
	334
	335	model = devc->model_config;
	336	state = devc->model_state;
	337	update_sample_rate = FALSE;
	338
	339	ret = SR_ERR_NA;
	340
	341	switch (key) {
	342	case SR_CONF_LIMIT_FRAMES:
	343	devc->frame_limit = g_variant_get_uint64(data);
	344	ret = SR_OK;
	345	break;
	346	case SR_CONF_TRIGGER_SOURCE:
	347	tmp = g_variant_get_string(data, NULL);
	348	for (i = 0; (*model->trigger_sources)[i]; i++) {
	349	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	350	continue;
	351	state->trigger_source = i;
	352	/* TODO: A and B trigger support possible? */
	353	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	354	break;
	355	}
	356	break;
	357	case SR_CONF_VDIV:
	358	if (cg_type == CG_NONE) {
	359	sr_err("No channel group specified.");
	360	return SR_ERR_CHANNEL_GROUP;
	361	}
	362
	363	g_variant_get(data, "(tt)", &p, &q);
	364
f3c60fb6 SA	365	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	366	if (p != dlm_vdivs[i][0] \|\|
	367	q != dlm_vdivs[i][1])
8ab929d6	368	continue;
a9308652	369	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	370	if (cg != devc->analog_groups[j - 1])
	371	continue;
	372	state->analog_states[j - 1].vdiv = i;
	373	g_ascii_formatd(float_str, sizeof(float_str),
	374	"%E", (float) p / q);
	375	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	376	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	377	return SR_ERR;
	378
	379	break;
	380	}
	381
	382	ret = SR_OK;
	383	break;
	384	}
	385	break;
	386	case SR_CONF_TIMEBASE:
	387	g_variant_get(data, "(tt)", &p, &q);
	388
f3c60fb6 SA	389	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	390	if (p != dlm_timebases[i][0] \|\|
	391	q != dlm_timebases[i][1])
8ab929d6 SA	392	continue;
	393	state->timebase = i;
	394	g_ascii_formatd(float_str, sizeof(float_str),
	395	"%E", (float) p / q);
	396	ret = dlm_timebase_set(sdi->conn, float_str);
	397	update_sample_rate = TRUE;
	398	break;
	399	}
	400	break;
	401	case SR_CONF_HORIZ_TRIGGERPOS:
	402	tmp_d = g_variant_get_double(data);
	403
	404	/* TODO: Check if the calculation makes sense for the DLM. */
	405	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	406	return SR_ERR;
	407
	408	state->horiz_triggerpos = tmp_d;
	409	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	410	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	411	dlm_timebases[state->timebase][1])
ac10a927	412	* model->num_xdivs;
8ab929d6 SA	413
	414	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	415	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	416	break;
	417	case SR_CONF_TRIGGER_SLOPE:
	418	tmp = g_variant_get_string(data, NULL);
	419
	420	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	421	return SR_ERR_ARG;
	422
	423	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	424	state->trigger_slope = (tmp[0] == 'r') ?
	425	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	426
	427	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	428	break;
	429	case SR_CONF_COUPLING:
	430	if (cg_type == CG_NONE) {
	431	sr_err("No channel group specified.");
	432	return SR_ERR_CHANNEL_GROUP;
	433	}
	434
	435	tmp = g_variant_get_string(data, NULL);
	436
	437	for (i = 0; (*model->coupling_options)[i]; i++) {
	438	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	439	continue;
a9308652	440	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	441	if (cg != devc->analog_groups[j - 1])
	442	continue;
	443	state->analog_states[j-1].coupling = i;
	444
	445	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	446	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	447	return SR_ERR;
	448	break;
	449	}
	450
	451	ret = SR_OK;
	452	break;
	453	}
	454	break;
	455	default:
	456	ret = SR_ERR_NA;
	457	break;
	458	}
	459
	460	if (ret == SR_OK)
	461	ret = sr_scpi_get_opc(sdi->conn);
	462
	463	if (ret == SR_OK && update_sample_rate)
	464	ret = dlm_sample_rate_query(sdi);
	465
	466	return ret;
	467	}
	468
c65a021c SA	469	static int config_channel_set(const struct sr_dev_inst *sdi,
	470	struct sr_channel *ch, unsigned int changes)
	471	{
a9308652	472	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	473	if (changes != SR_CHANNEL_SET_ENABLED)
	474	return SR_ERR_NA;
	475
	476	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	477	}
	478
584560f1	479	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	480	const struct sr_channel_group *cg)
8ab929d6	481	{
cf0280fa AJ	482	int cg_type = CG_NONE;
cf0280fa AJ	483	struct dev_context *devc = NULL;
329733d9	484	const struct scope_config *model = NULL;
8ab929d6	485
9a512113	486	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or channel group. */
f3c60fb6 SA	487	if (key == SR_CONF_SCAN_OPTIONS) {
	488	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	489	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	490	return SR_OK;
	491	}
8ab929d6	492
f3c60fb6 SA	493	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	494	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	495	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	496	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	497	return SR_OK;
cf0280fa	498	}
8ab929d6	499
f3c60fb6 SA	500	if (!sdi)
	501	return SR_ERR_ARG;
	502
	503	devc = sdi->priv;
	504	model = devc->model_config;
	505
a9308652 UH	506	/*
a9308652 UH	507	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
9a512113	508	* specific to a channel group must be returned.
a9308652	509	*/
f3c60fb6 SA	510	if (!cg) {
	511	switch (key) {
	512	case SR_CONF_DEVICE_OPTIONS:
	513	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	514	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	515	return SR_OK;
	516	case SR_CONF_TIMEBASE:
	517	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	518	return SR_OK;
	519	case SR_CONF_TRIGGER_SOURCE:
	520	if (!model)
	521	return SR_ERR_ARG;
	522	data = g_variant_new_strv(model->trigger_sources,
	523	g_strv_length((char *)model->trigger_sources));
	524	return SR_OK;
	525	case SR_CONF_TRIGGER_SLOPE:
	526	*data = g_variant_new_strv(dlm_trigger_slopes,
	527	g_strv_length((char **)dlm_trigger_slopes));
	528	return SR_OK;
	529	case SR_CONF_NUM_HDIV:
49f49cb5	530	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	531	return SR_OK;
	532	default:
	533	return SR_ERR_NA;
	534	}
	535	}
	536
	537	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	538	return SR_ERR;
	539
8ab929d6	540	switch (key) {
8ab929d6	541	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	542	if (cg_type == CG_ANALOG) {
584560f1	543	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	544	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	545	} else if (cg_type == CG_DIGITAL) {
	546	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	547	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	548	} else {
584560f1 BV	549	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	550	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	551	}
	552	break;
	553	case SR_CONF_COUPLING:
	554	if (cg_type == CG_NONE)
	555	return SR_ERR_CHANNEL_GROUP;
	556	data = g_variant_new_strv(model->coupling_options,
ac10a927	557	g_strv_length((char *)model->coupling_options));
8ab929d6	558	break;
8ab929d6 SA	559	case SR_CONF_VDIV:
	560	if (cg_type == CG_NONE)
	561	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	562	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	563	break;
	564	default:
	565	return SR_ERR_NA;
	566	}
	567
	568	return SR_OK;
	569	}
	570
	571	static int dlm_check_channels(GSList *channels)
	572	{
	573	GSList *l;
	574	struct sr_channel *ch;
	575	gboolean enabled_pod1, enabled_chan4;
	576
	577	enabled_pod1 = enabled_chan4 = FALSE;
	578
	579	/* Note: On the DLM2000, CH4 and Logic are shared. */
	580	/* TODO Handle non-DLM2000 models. */
	581	for (l = channels; l; l = l->next) {
	582	ch = l->data;
	583	switch (ch->type) {
	584	case SR_CHANNEL_ANALOG:
	585	if (ch->index == 3)
	586	enabled_chan4 = TRUE;
	587	break;
	588	case SR_CHANNEL_LOGIC:
	589	enabled_pod1 = TRUE;
	590	break;
	591	default:
	592	return SR_ERR;
	593	}
	594	}
	595
	596	if (enabled_pod1 && enabled_chan4)
	597	return SR_ERR;
	598
	599	return SR_OK;
	600	}
	601
695dc859	602	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	603	{
	604	GSList *l;
	605	gboolean digital_added;
	606	struct sr_channel *ch;
	607	struct dev_context *devc;
	608	struct sr_scpi_dev_inst *scpi;
	609
8ab929d6 SA	610	scpi = sdi->conn;
	611	devc = sdi->priv;
	612	digital_added = FALSE;
	613
	614	g_slist_free(devc->enabled_channels);
	615	devc->enabled_channels = NULL;
	616
	617	for (l = sdi->channels; l; l = l->next) {
	618	ch = l->data;
	619	if (!ch->enabled)
	620	continue;
	621	/* Only add a single digital channel. */
	622	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	623	devc->enabled_channels = g_slist_append(
ac10a927 SA	624	devc->enabled_channels, ch);
	625	if (ch->type == SR_CHANNEL_LOGIC)
	626	digital_added = TRUE;
8ab929d6 SA	627	}
	628	}
	629
	630	if (!devc->enabled_channels)
	631	return SR_ERR;
	632
	633	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	634	sr_err("Invalid channel configuration specified!");
	635	return SR_ERR_NA;
	636	}
	637
af3487ec SA	638	/* Request data for the first enabled channel. */
	639	devc->current_channel = devc->enabled_channels;
	640	dlm_channel_data_request(sdi);
	641
0028d5a1 SA	642	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	643	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	644	dlm_data_receive, (void *)sdi);
	645
	646	return SR_OK;
	647	}
	648
695dc859	649	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	650	{
8ab929d6 SA	651	struct dev_context *devc;
8ab929d6	652
bee2b016	653	std_session_send_df_end(sdi);
8ab929d6	654
8ab929d6 SA	655	devc = sdi->priv;
	656
	657	devc->num_frames = 0;
	658	g_slist_free(devc->enabled_channels);
	659	devc->enabled_channels = NULL;
af3487ec SA	660
af3487ec SA	661	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	662
	663	return SR_OK;
	664	}
10763937	665
dd5c48a6	666	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	667	.name = "yokogawa-dlm",
ac10a927	668	.longname = "Yokogawa DL/DLM",
10763937	669	.api_version = 1,
c2fdcc25	670	.init = std_init,
700d6b64	671	.cleanup = std_cleanup,
8ab929d6	672	.scan = scan,
c01bf34c	673	.dev_list = std_dev_list,
8ab929d6 SA	674	.dev_clear = dev_clear,
	675	.config_get = config_get,
	676	.config_set = config_set,
c65a021c	677	.config_channel_set = config_channel_set,
8ab929d6 SA	678	.config_list = config_list,
	679	.dev_open = dev_open,
	680	.dev_close = dev_close,
	681	.dev_acquisition_start = dev_acquisition_start,
	682	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	683	.context = NULL,
10763937	684	};
dd5c48a6	685	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);