[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);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear_with_callback(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);
8ab929d6 SA	134	}
8ab929d6 SA	135
4f840ce9	136	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6	137	{
6e43c3d5	138	return std_dev_clear_with_callback(di, clear_helper);
8ab929d6 SA	139	}
	140
	141	static int dev_open(struct sr_dev_inst *sdi)
	142	{
6402c379	143	if (sr_scpi_open(sdi->conn) != SR_OK)
8ab929d6 SA	144	return SR_ERR;
	145
	146	if (dlm_scope_state_query(sdi) != SR_OK)
	147	return SR_ERR;
	148
8ab929d6 SA	149	return SR_OK;
	150	}
	151
	152	static int dev_close(struct sr_dev_inst *sdi)
	153	{
f1ba6b4b	154	return sr_scpi_close(sdi->conn);
8ab929d6 SA	155	}
8ab929d6 SA	156
8ab929d6 SA	157	/**
	158	* Check which category a given channel group belongs to.
	159	*
	160	* @param devc Our internal device context.
a9308652	161	* @param cg The channel group to check.
8ab929d6	162	*
a9308652 UH	163	* @retval CG_NONE cg is NULL
a9308652 UH	164	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	165	* @retval CG_DIGITAL cg is a digital group
	166	* @retval CG_INVALID cg is something else
	167	*/
	168	static int check_channel_group(struct dev_context *devc,
ac10a927	169	const struct sr_channel_group *cg)
8ab929d6 SA	170	{
8ab929d6 SA	171	unsigned int i;
329733d9	172	const struct scope_config *model;
8ab929d6 SA	173
	174	model = devc->model_config;
	175
	176	if (!cg)
	177	return CG_NONE;
	178
a9308652	179	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	180	if (cg == devc->analog_groups[i])
	181	return CG_ANALOG;
	182
a9308652	183	for (i = 0; i < model->pods; i++)
8ab929d6 SA	184	if (cg == devc->digital_groups[i])
	185	return CG_DIGITAL;
	186
	187	sr_err("Invalid channel group specified.");
	188	return CG_INVALID;
	189	}
	190
584560f1	191	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	192	const struct sr_channel_group *cg)
8ab929d6 SA	193	{
	194	int ret, cg_type;
	195	unsigned int i;
	196	struct dev_context *devc;
329733d9	197	const struct scope_config *model;
8ab929d6 SA	198	struct scope_state *state;
8ab929d6 SA	199
709468ba	200	if (!sdi)
8ab929d6 SA	201	return SR_ERR_ARG;
8ab929d6 SA	202
709468ba UH	203	devc = sdi->priv;
709468ba UH	204
8ab929d6 SA	205	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	206	return SR_ERR;
	207
8ab929d6 SA	208	model = devc->model_config;
	209	state = devc->model_state;
	210
	211	switch (key) {
bf622e6d	212	case SR_CONF_NUM_HDIV:
8ab929d6 SA	213	*data = g_variant_new_int32(model->num_xdivs);
	214	ret = SR_OK;
	215	break;
	216	case SR_CONF_TIMEBASE:
	217	*data = g_variant_new("(tt)",
f3c60fb6 SA	218	dlm_timebases[state->timebase][0],
f3c60fb6 SA	219	dlm_timebases[state->timebase][1]);
8ab929d6 SA	220	ret = SR_OK;
	221	break;
	222	case SR_CONF_NUM_VDIV:
	223	if (cg_type == CG_NONE) {
	224	sr_err("No channel group specified.");
	225	return SR_ERR_CHANNEL_GROUP;
	226	} else if (cg_type == CG_ANALOG) {
	227	*data = g_variant_new_int32(model->num_ydivs);
	228	ret = SR_OK;
	229	break;
	230	} else {
	231	ret = SR_ERR_NA;
	232	}
	233	break;
	234	case SR_CONF_VDIV:
	235	ret = SR_ERR_NA;
	236	if (cg_type == CG_NONE) {
	237	sr_err("No channel group specified.");
	238	return SR_ERR_CHANNEL_GROUP;
	239	} else if (cg_type != CG_ANALOG)
	240	break;
	241
a9308652	242	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	243	if (cg != devc->analog_groups[i])
	244	continue;
	245	*data = g_variant_new("(tt)",
f3c60fb6 SA	246	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	247	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	248	ret = SR_OK;
	249	break;
	250	}
	251	break;
	252	case SR_CONF_TRIGGER_SOURCE:
	253	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	254	ret = SR_OK;
	255	break;
	256	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	257	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	258	ret = SR_OK;
	259	break;
	260	case SR_CONF_HORIZ_TRIGGERPOS:
	261	*data = g_variant_new_double(state->horiz_triggerpos);
	262	ret = SR_OK;
	263	break;
	264	case SR_CONF_COUPLING:
	265	ret = SR_ERR_NA;
	266	if (cg_type == CG_NONE) {
	267	sr_err("No channel group specified.");
	268	return SR_ERR_CHANNEL_GROUP;
	269	} else if (cg_type != CG_ANALOG)
	270	break;
	271
a9308652	272	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	273	if (cg != devc->analog_groups[i])
	274	continue;
	275	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	276	ret = SR_OK;
	277	break;
	278	}
	279	break;
	280	case SR_CONF_SAMPLERATE:
	281	*data = g_variant_new_uint64(state->sample_rate);
	282	ret = SR_OK;
	283	break;
	284	default:
	285	ret = SR_ERR_NA;
	286	}
	287
	288	return ret;
	289	}
	290
	291	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	292	{
	293	unsigned int i;
	294	GVariant *rational[2];
	295	GVariantBuilder gvb;
	296
	297	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	298
	299	for (i = 0; i < n; i++) {
	300	rational[0] = g_variant_new_uint64((*array)[i][0]);
	301	rational[1] = g_variant_new_uint64((*array)[i][1]);
	302
	303	/* FIXME: Valgrind reports a memory leak here. */
	304	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	305	}
	306
	307	return g_variant_builder_end(&gvb);
	308	}
	309
584560f1	310	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	311	const struct sr_channel_group *cg)
8ab929d6 SA	312	{
	313	int ret, cg_type;
	314	unsigned int i, j;
	315	char float_str[30];
	316	struct dev_context *devc;
329733d9	317	const struct scope_config *model;
8ab929d6 SA	318	struct scope_state *state;
	319	const char *tmp;
	320	uint64_t p, q;
	321	double tmp_d;
	322	gboolean update_sample_rate;
	323
	324	if (!sdi \|\| !(devc = sdi->priv))
	325	return SR_ERR_ARG;
	326
	327	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	328	return SR_ERR;
	329
	330	model = devc->model_config;
	331	state = devc->model_state;
	332	update_sample_rate = FALSE;
	333
	334	ret = SR_ERR_NA;
	335
	336	switch (key) {
	337	case SR_CONF_LIMIT_FRAMES:
	338	devc->frame_limit = g_variant_get_uint64(data);
	339	ret = SR_OK;
	340	break;
	341	case SR_CONF_TRIGGER_SOURCE:
	342	tmp = g_variant_get_string(data, NULL);
	343	for (i = 0; (*model->trigger_sources)[i]; i++) {
	344	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	345	continue;
	346	state->trigger_source = i;
	347	/* TODO: A and B trigger support possible? */
	348	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	349	break;
	350	}
	351	break;
	352	case SR_CONF_VDIV:
	353	if (cg_type == CG_NONE) {
	354	sr_err("No channel group specified.");
	355	return SR_ERR_CHANNEL_GROUP;
	356	}
	357
	358	g_variant_get(data, "(tt)", &p, &q);
	359
f3c60fb6 SA	360	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	361	if (p != dlm_vdivs[i][0] \|\|
	362	q != dlm_vdivs[i][1])
8ab929d6	363	continue;
a9308652	364	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	365	if (cg != devc->analog_groups[j - 1])
	366	continue;
	367	state->analog_states[j - 1].vdiv = i;
	368	g_ascii_formatd(float_str, sizeof(float_str),
	369	"%E", (float) p / q);
	370	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	371	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	372	return SR_ERR;
	373
	374	break;
	375	}
	376
	377	ret = SR_OK;
	378	break;
	379	}
	380	break;
	381	case SR_CONF_TIMEBASE:
	382	g_variant_get(data, "(tt)", &p, &q);
	383
f3c60fb6 SA	384	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	385	if (p != dlm_timebases[i][0] \|\|
	386	q != dlm_timebases[i][1])
8ab929d6 SA	387	continue;
	388	state->timebase = i;
	389	g_ascii_formatd(float_str, sizeof(float_str),
	390	"%E", (float) p / q);
	391	ret = dlm_timebase_set(sdi->conn, float_str);
	392	update_sample_rate = TRUE;
	393	break;
	394	}
	395	break;
	396	case SR_CONF_HORIZ_TRIGGERPOS:
	397	tmp_d = g_variant_get_double(data);
	398
	399	/* TODO: Check if the calculation makes sense for the DLM. */
	400	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	401	return SR_ERR;
	402
	403	state->horiz_triggerpos = tmp_d;
	404	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	405	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	406	dlm_timebases[state->timebase][1])
ac10a927	407	* model->num_xdivs;
8ab929d6 SA	408
	409	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	410	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	411	break;
	412	case SR_CONF_TRIGGER_SLOPE:
	413	tmp = g_variant_get_string(data, NULL);
	414
	415	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	416	return SR_ERR_ARG;
	417
	418	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	419	state->trigger_slope = (tmp[0] == 'r') ?
	420	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	421
	422	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	423	break;
	424	case SR_CONF_COUPLING:
	425	if (cg_type == CG_NONE) {
	426	sr_err("No channel group specified.");
	427	return SR_ERR_CHANNEL_GROUP;
	428	}
	429
	430	tmp = g_variant_get_string(data, NULL);
	431
	432	for (i = 0; (*model->coupling_options)[i]; i++) {
	433	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	434	continue;
a9308652	435	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	436	if (cg != devc->analog_groups[j - 1])
	437	continue;
	438	state->analog_states[j-1].coupling = i;
	439
	440	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	441	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	442	return SR_ERR;
	443	break;
	444	}
	445
	446	ret = SR_OK;
	447	break;
	448	}
	449	break;
	450	default:
	451	ret = SR_ERR_NA;
	452	break;
	453	}
	454
	455	if (ret == SR_OK)
	456	ret = sr_scpi_get_opc(sdi->conn);
	457
	458	if (ret == SR_OK && update_sample_rate)
	459	ret = dlm_sample_rate_query(sdi);
	460
	461	return ret;
	462	}
	463
c65a021c SA	464	static int config_channel_set(const struct sr_dev_inst *sdi,
	465	struct sr_channel *ch, unsigned int changes)
	466	{
a9308652	467	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	468	if (changes != SR_CHANNEL_SET_ENABLED)
	469	return SR_ERR_NA;
	470
	471	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	472	}
	473
584560f1	474	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	475	const struct sr_channel_group *cg)
8ab929d6	476	{
cf0280fa AJ	477	int cg_type = CG_NONE;
cf0280fa AJ	478	struct dev_context *devc = NULL;
329733d9	479	const struct scope_config *model = NULL;
8ab929d6	480
9a512113	481	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or channel group. */
f3c60fb6 SA	482	if (key == SR_CONF_SCAN_OPTIONS) {
	483	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	484	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	485	return SR_OK;
	486	}
8ab929d6	487
f3c60fb6 SA	488	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	489	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	490	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	491	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	492	return SR_OK;
cf0280fa	493	}
8ab929d6	494
f3c60fb6 SA	495	if (!sdi)
	496	return SR_ERR_ARG;
	497
	498	devc = sdi->priv;
	499	model = devc->model_config;
	500
a9308652 UH	501	/*
a9308652 UH	502	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
9a512113	503	* specific to a channel group must be returned.
a9308652	504	*/
f3c60fb6 SA	505	if (!cg) {
	506	switch (key) {
	507	case SR_CONF_DEVICE_OPTIONS:
	508	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	509	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	510	return SR_OK;
	511	case SR_CONF_TIMEBASE:
	512	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	513	return SR_OK;
	514	case SR_CONF_TRIGGER_SOURCE:
	515	if (!model)
	516	return SR_ERR_ARG;
	517	data = g_variant_new_strv(model->trigger_sources,
	518	g_strv_length((char *)model->trigger_sources));
	519	return SR_OK;
	520	case SR_CONF_TRIGGER_SLOPE:
	521	*data = g_variant_new_strv(dlm_trigger_slopes,
	522	g_strv_length((char **)dlm_trigger_slopes));
	523	return SR_OK;
	524	case SR_CONF_NUM_HDIV:
49f49cb5	525	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	526	return SR_OK;
	527	default:
	528	return SR_ERR_NA;
	529	}
	530	}
	531
	532	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	533	return SR_ERR;
	534
8ab929d6	535	switch (key) {
8ab929d6	536	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	537	if (cg_type == CG_ANALOG) {
584560f1	538	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	539	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	540	} else if (cg_type == CG_DIGITAL) {
	541	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	542	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	543	} else {
584560f1 BV	544	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	545	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	546	}
	547	break;
	548	case SR_CONF_COUPLING:
	549	if (cg_type == CG_NONE)
	550	return SR_ERR_CHANNEL_GROUP;
	551	data = g_variant_new_strv(model->coupling_options,
ac10a927	552	g_strv_length((char *)model->coupling_options));
8ab929d6	553	break;
8ab929d6 SA	554	case SR_CONF_VDIV:
	555	if (cg_type == CG_NONE)
	556	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	557	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	558	break;
	559	default:
	560	return SR_ERR_NA;
	561	}
	562
	563	return SR_OK;
	564	}
	565
	566	static int dlm_check_channels(GSList *channels)
	567	{
	568	GSList *l;
	569	struct sr_channel *ch;
	570	gboolean enabled_pod1, enabled_chan4;
	571
	572	enabled_pod1 = enabled_chan4 = FALSE;
	573
	574	/* Note: On the DLM2000, CH4 and Logic are shared. */
	575	/* TODO Handle non-DLM2000 models. */
	576	for (l = channels; l; l = l->next) {
	577	ch = l->data;
	578	switch (ch->type) {
	579	case SR_CHANNEL_ANALOG:
	580	if (ch->index == 3)
	581	enabled_chan4 = TRUE;
	582	break;
	583	case SR_CHANNEL_LOGIC:
	584	enabled_pod1 = TRUE;
	585	break;
	586	default:
	587	return SR_ERR;
	588	}
	589	}
	590
	591	if (enabled_pod1 && enabled_chan4)
	592	return SR_ERR;
	593
	594	return SR_OK;
	595	}
	596
695dc859	597	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	598	{
	599	GSList *l;
	600	gboolean digital_added;
	601	struct sr_channel *ch;
	602	struct dev_context *devc;
	603	struct sr_scpi_dev_inst *scpi;
	604
8ab929d6 SA	605	scpi = sdi->conn;
	606	devc = sdi->priv;
	607	digital_added = FALSE;
	608
	609	g_slist_free(devc->enabled_channels);
	610	devc->enabled_channels = NULL;
	611
	612	for (l = sdi->channels; l; l = l->next) {
	613	ch = l->data;
	614	if (!ch->enabled)
	615	continue;
	616	/* Only add a single digital channel. */
	617	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	618	devc->enabled_channels = g_slist_append(
ac10a927 SA	619	devc->enabled_channels, ch);
	620	if (ch->type == SR_CHANNEL_LOGIC)
	621	digital_added = TRUE;
8ab929d6 SA	622	}
	623	}
	624
	625	if (!devc->enabled_channels)
	626	return SR_ERR;
	627
	628	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	629	sr_err("Invalid channel configuration specified!");
	630	return SR_ERR_NA;
	631	}
	632
af3487ec SA	633	/* Request data for the first enabled channel. */
	634	devc->current_channel = devc->enabled_channels;
	635	dlm_channel_data_request(sdi);
	636
0028d5a1 SA	637	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	638	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	639	dlm_data_receive, (void *)sdi);
	640
	641	return SR_OK;
	642	}
	643
695dc859	644	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	645	{
8ab929d6 SA	646	struct dev_context *devc;
8ab929d6	647
bee2b016	648	std_session_send_df_end(sdi);
8ab929d6	649
8ab929d6 SA	650	devc = sdi->priv;
	651
	652	devc->num_frames = 0;
	653	g_slist_free(devc->enabled_channels);
	654	devc->enabled_channels = NULL;
af3487ec SA	655
af3487ec SA	656	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	657
	658	return SR_OK;
	659	}
10763937	660
dd5c48a6	661	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	662	.name = "yokogawa-dlm",
ac10a927	663	.longname = "Yokogawa DL/DLM",
10763937	664	.api_version = 1,
c2fdcc25	665	.init = std_init,
700d6b64	666	.cleanup = std_cleanup,
8ab929d6	667	.scan = scan,
c01bf34c	668	.dev_list = std_dev_list,
8ab929d6 SA	669	.dev_clear = dev_clear,
	670	.config_get = config_get,
	671	.config_set = config_set,
c65a021c	672	.config_channel_set = config_channel_set,
8ab929d6 SA	673	.config_list = config_list,
	674	.dev_open = dev_open,
	675	.dev_close = dev_close,
	676	.dev_acquisition_start = dev_acquisition_start,
	677	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	678	.context = NULL,
10763937	679	};
dd5c48a6	680	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);