[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 (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
		return SR_ERR;

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

	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	if (sdi->status == SR_ST_INACTIVE)
		return SR_OK;

	sr_scpi_close(sdi->conn);

	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

/**
 * Check which category a given channel group belongs to.
 *
 * @param devc Our internal device context.
 * @param cg The channel group to check.
 *
 * @retval CG_NONE cg is NULL
 * @retval CG_ANALOG cg is an analog group
 * @retval CG_DIGITAL cg is a digital group
 * @retval CG_INVALID cg is something else
 */
static int check_channel_group(struct dev_context *devc,
			const struct sr_channel_group *cg)
{
	unsigned int i;
	const struct scope_config *model;

	model = devc->model_config;

	if (!cg)
		return CG_NONE;

	for (i = 0; i < model->analog_channels; i++)
		if (cg == devc->analog_groups[i])
			return CG_ANALOG;

	for (i = 0; i < model->pods; i++)
		if (cg == devc->digital_groups[i])
			return CG_DIGITAL;

	sr_err("Invalid channel group specified.");
	return CG_INVALID;
}

static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	int ret, cg_type;
	unsigned int i;
	struct dev_context *devc;
	const struct scope_config *model;
	struct scope_state *state;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	model = devc->model_config;
	state = devc->model_state;

	switch (key) {
	case SR_CONF_NUM_HDIV:
		*data = g_variant_new_int32(model->num_xdivs);
		ret = SR_OK;
		break;
	case SR_CONF_TIMEBASE:
		*data = g_variant_new("(tt)",
				dlm_timebases[state->timebase][0],
				dlm_timebases[state->timebase][1]);
		ret = SR_OK;
		break;
	case SR_CONF_NUM_VDIV:
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		} else if (cg_type == CG_ANALOG) {
				*data = g_variant_new_int32(model->num_ydivs);
				ret = SR_OK;
				break;
		} else {
			ret = SR_ERR_NA;
		}
		break;
	case SR_CONF_VDIV:
		ret = SR_ERR_NA;
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		} else if (cg_type != CG_ANALOG)
			break;

		for (i = 0; i < model->analog_channels; i++) {
			if (cg != devc->analog_groups[i])
				continue;
			*data = g_variant_new("(tt)",
					dlm_vdivs[state->analog_states[i].vdiv][0],
					dlm_vdivs[state->analog_states[i].vdiv][1]);
			ret = SR_OK;
			break;
		}
		break;
	case SR_CONF_TRIGGER_SOURCE:
		*data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SLOPE:
		*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
		ret = SR_OK;
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		*data = g_variant_new_double(state->horiz_triggerpos);
		ret = SR_OK;
		break;
	case SR_CONF_COUPLING:
		ret = SR_ERR_NA;
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		} else if (cg_type != CG_ANALOG)
			break;

		for (i = 0; i < model->analog_channels; i++) {
			if (cg != devc->analog_groups[i])
				continue;
			*data = g_variant_new_string((*model->coupling_options)[state->analog_states[i].coupling]);
			ret = SR_OK;
			break;
		}
		break;
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(state->sample_rate);
		ret = SR_OK;
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n)
{
	unsigned int i;
	GVariant *rational[2];
	GVariantBuilder gvb;

	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);

	for (i = 0; i < n; i++) {
		rational[0] = g_variant_new_uint64((*array)[i][0]);
		rational[1] = g_variant_new_uint64((*array)[i][1]);

		/* FIXME: Valgrind reports a memory leak here. */
		g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	}

	return g_variant_builder_end(&gvb);
}

static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	int ret, cg_type;
	unsigned int i, j;
	char float_str[30];
	struct dev_context *devc;
	const struct scope_config *model;
	struct scope_state *state;
	const char *tmp;
	uint64_t p, q;
	double tmp_d;
	gboolean update_sample_rate;

	if (!sdi || !(devc = sdi->priv))
		return SR_ERR_ARG;

	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
		return SR_ERR;

	model = devc->model_config;
	state = devc->model_state;
	update_sample_rate = FALSE;

	ret = SR_ERR_NA;

	switch (key) {
	case SR_CONF_LIMIT_FRAMES:
		devc->frame_limit = g_variant_get_uint64(data);
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SOURCE:
		tmp = g_variant_get_string(data, NULL);
		for (i = 0; (*model->trigger_sources)[i]; i++) {
			if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
				continue;
			state->trigger_source = i;
			/* TODO: A and B trigger support possible? */
			ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
			break;
		}
		break;
	case SR_CONF_VDIV:
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		}

		g_variant_get(data, "(tt)", &p, &q);

		for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
			if (p != dlm_vdivs[i][0] ||
					q != dlm_vdivs[i][1])
				continue;
			for (j = 1; j <= model->analog_channels; j++) {
				if (cg != devc->analog_groups[j - 1])
					continue;
				state->analog_states[j - 1].vdiv = i;
				g_ascii_formatd(float_str, sizeof(float_str),
						"%E", (float) p / q);
				if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK ||
						sr_scpi_get_opc(sdi->conn) != SR_OK)
					return SR_ERR;

				break;
			}

			ret = SR_OK;
			break;
		}
		break;
	case SR_CONF_TIMEBASE:
		g_variant_get(data, "(tt)", &p, &q);

		for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
			if (p != dlm_timebases[i][0] ||
					q != dlm_timebases[i][1])
				continue;
			state->timebase = i;
			g_ascii_formatd(float_str, sizeof(float_str),
					"%E", (float) p / q);
			ret = dlm_timebase_set(sdi->conn, float_str);
			update_sample_rate = TRUE;
			break;
		}
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		tmp_d = g_variant_get_double(data);

		/* TODO: Check if the calculation makes sense for the DLM. */
		if (tmp_d < 0.0 || tmp_d > 1.0)
			return SR_ERR;

		state->horiz_triggerpos = tmp_d;
		tmp_d = -(tmp_d - 0.5) *
				((double) dlm_timebases[state->timebase][0] /
				dlm_timebases[state->timebase][1])
				* model->num_xdivs;

		g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
		ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
		break;
	case SR_CONF_TRIGGER_SLOPE:
		tmp = g_variant_get_string(data, NULL);

		if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r'))
			return SR_ERR_ARG;

		/* Note: See dlm_trigger_slopes[] in protocol.c. */
		state->trigger_slope = (tmp[0] == 'r') ?
				SLOPE_POSITIVE : SLOPE_NEGATIVE;

		ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
		break;
	case SR_CONF_COUPLING:
		if (cg_type == CG_NONE) {
			sr_err("No channel group specified.");
			return SR_ERR_CHANNEL_GROUP;
		}

		tmp = g_variant_get_string(data, NULL);

		for (i = 0; (*model->coupling_options)[i]; i++) {
			if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
				continue;
			for (j = 1; j <= model->analog_channels; j++) {
				if (cg != devc->analog_groups[j - 1])
					continue;
				state->analog_states[j-1].coupling = i;

				if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK ||
						sr_scpi_get_opc(sdi->conn) != SR_OK)
					return SR_ERR;
				break;
			}

			ret = SR_OK;
			break;
		}
		break;
	default:
		ret = SR_ERR_NA;
		break;
	}

	if (ret == SR_OK)
		ret = sr_scpi_get_opc(sdi->conn);

	if (ret == SR_OK && update_sample_rate)
		ret = dlm_sample_rate_query(sdi);

	return ret;
}

static int config_channel_set(const struct sr_dev_inst *sdi,
			struct sr_channel *ch, unsigned int changes)
{
	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
	if (changes != SR_CHANNEL_SET_ENABLED)
		return SR_ERR_NA;

	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	int cg_type = CG_NONE;
	struct dev_context *devc = NULL;
	const struct scope_config *model = NULL;

	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or 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;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	scpi = sdi->conn;
	devc = sdi->priv;
	digital_added = FALSE;

	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	for (l = sdi->channels; l; l = l->next) {
		ch = l->data;
		if (!ch->enabled)
			continue;
		/* Only add a single digital channel. */
		if (ch->type != SR_CHANNEL_LOGIC || !digital_added) {
			devc->enabled_channels = g_slist_append(
				devc->enabled_channels, ch);
			if (ch->type == SR_CHANNEL_LOGIC)
				digital_added = TRUE;
		}
	}

	if (!devc->enabled_channels)
		return SR_ERR;

	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
		sr_err("Invalid channel configuration specified!");
		return SR_ERR_NA;
	}

	/* Request data for the first enabled channel. */
	devc->current_channel = devc->enabled_channels;
	dlm_channel_data_request(sdi);

	/* Call our callback when data comes in or after 5ms. */
	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
			dlm_data_receive, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	std_session_send_df_end(sdi);

	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	{
	144	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	145	return SR_ERR;
	146
	147	if (dlm_scope_state_query(sdi) != SR_OK)
	148	return SR_ERR;
	149
	150	sdi->status = SR_ST_ACTIVE;
	151
	152	return SR_OK;
	153	}
	154
	155	static int dev_close(struct sr_dev_inst *sdi)
	156	{
	157	if (sdi->status == SR_ST_INACTIVE)
	158	return SR_OK;
	159
	160	sr_scpi_close(sdi->conn);
	161
	162	sdi->status = SR_ST_INACTIVE;
	163
	164	return SR_OK;
	165	}
	166
8ab929d6 SA	167	/**
	168	* Check which category a given channel group belongs to.
	169	*
	170	* @param devc Our internal device context.
a9308652	171	* @param cg The channel group to check.
8ab929d6	172	*
a9308652 UH	173	* @retval CG_NONE cg is NULL
a9308652 UH	174	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	175	* @retval CG_DIGITAL cg is a digital group
	176	* @retval CG_INVALID cg is something else
	177	*/
	178	static int check_channel_group(struct dev_context *devc,
ac10a927	179	const struct sr_channel_group *cg)
8ab929d6 SA	180	{
8ab929d6 SA	181	unsigned int i;
329733d9	182	const struct scope_config *model;
8ab929d6 SA	183
	184	model = devc->model_config;
	185
	186	if (!cg)
	187	return CG_NONE;
	188
a9308652	189	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	190	if (cg == devc->analog_groups[i])
	191	return CG_ANALOG;
	192
a9308652	193	for (i = 0; i < model->pods; i++)
8ab929d6 SA	194	if (cg == devc->digital_groups[i])
	195	return CG_DIGITAL;
	196
	197	sr_err("Invalid channel group specified.");
	198	return CG_INVALID;
	199	}
	200
584560f1	201	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	202	const struct sr_channel_group *cg)
8ab929d6 SA	203	{
	204	int ret, cg_type;
	205	unsigned int i;
	206	struct dev_context *devc;
329733d9	207	const struct scope_config *model;
8ab929d6 SA	208	struct scope_state *state;
8ab929d6 SA	209
709468ba	210	if (!sdi)
8ab929d6 SA	211	return SR_ERR_ARG;
8ab929d6 SA	212
709468ba UH	213	devc = sdi->priv;
709468ba UH	214
8ab929d6 SA	215	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	216	return SR_ERR;
	217
8ab929d6 SA	218	model = devc->model_config;
	219	state = devc->model_state;
	220
	221	switch (key) {
bf622e6d	222	case SR_CONF_NUM_HDIV:
8ab929d6 SA	223	*data = g_variant_new_int32(model->num_xdivs);
	224	ret = SR_OK;
	225	break;
	226	case SR_CONF_TIMEBASE:
	227	*data = g_variant_new("(tt)",
f3c60fb6 SA	228	dlm_timebases[state->timebase][0],
f3c60fb6 SA	229	dlm_timebases[state->timebase][1]);
8ab929d6 SA	230	ret = SR_OK;
	231	break;
	232	case SR_CONF_NUM_VDIV:
	233	if (cg_type == CG_NONE) {
	234	sr_err("No channel group specified.");
	235	return SR_ERR_CHANNEL_GROUP;
	236	} else if (cg_type == CG_ANALOG) {
	237	*data = g_variant_new_int32(model->num_ydivs);
	238	ret = SR_OK;
	239	break;
	240	} else {
	241	ret = SR_ERR_NA;
	242	}
	243	break;
	244	case SR_CONF_VDIV:
	245	ret = SR_ERR_NA;
	246	if (cg_type == CG_NONE) {
	247	sr_err("No channel group specified.");
	248	return SR_ERR_CHANNEL_GROUP;
	249	} else if (cg_type != CG_ANALOG)
	250	break;
	251
a9308652	252	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	253	if (cg != devc->analog_groups[i])
	254	continue;
	255	*data = g_variant_new("(tt)",
f3c60fb6 SA	256	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	257	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	258	ret = SR_OK;
	259	break;
	260	}
	261	break;
	262	case SR_CONF_TRIGGER_SOURCE:
	263	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	264	ret = SR_OK;
	265	break;
	266	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	267	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	268	ret = SR_OK;
	269	break;
	270	case SR_CONF_HORIZ_TRIGGERPOS:
	271	*data = g_variant_new_double(state->horiz_triggerpos);
	272	ret = SR_OK;
	273	break;
	274	case SR_CONF_COUPLING:
	275	ret = SR_ERR_NA;
	276	if (cg_type == CG_NONE) {
	277	sr_err("No channel group specified.");
	278	return SR_ERR_CHANNEL_GROUP;
	279	} else if (cg_type != CG_ANALOG)
	280	break;
	281
a9308652	282	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	283	if (cg != devc->analog_groups[i])
	284	continue;
	285	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	286	ret = SR_OK;
	287	break;
	288	}
	289	break;
	290	case SR_CONF_SAMPLERATE:
	291	*data = g_variant_new_uint64(state->sample_rate);
	292	ret = SR_OK;
	293	break;
	294	default:
	295	ret = SR_ERR_NA;
	296	}
	297
	298	return ret;
	299	}
	300
	301	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	302	{
	303	unsigned int i;
	304	GVariant *rational[2];
	305	GVariantBuilder gvb;
	306
	307	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	308
	309	for (i = 0; i < n; i++) {
	310	rational[0] = g_variant_new_uint64((*array)[i][0]);
	311	rational[1] = g_variant_new_uint64((*array)[i][1]);
	312
	313	/* FIXME: Valgrind reports a memory leak here. */
	314	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	315	}
	316
	317	return g_variant_builder_end(&gvb);
	318	}
	319
584560f1	320	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	321	const struct sr_channel_group *cg)
8ab929d6 SA	322	{
	323	int ret, cg_type;
	324	unsigned int i, j;
	325	char float_str[30];
	326	struct dev_context *devc;
329733d9	327	const struct scope_config *model;
8ab929d6 SA	328	struct scope_state *state;
	329	const char *tmp;
	330	uint64_t p, q;
	331	double tmp_d;
	332	gboolean update_sample_rate;
	333
	334	if (!sdi \|\| !(devc = sdi->priv))
	335	return SR_ERR_ARG;
	336
	337	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	338	return SR_ERR;
	339
	340	model = devc->model_config;
	341	state = devc->model_state;
	342	update_sample_rate = FALSE;
	343
	344	ret = SR_ERR_NA;
	345
	346	switch (key) {
	347	case SR_CONF_LIMIT_FRAMES:
	348	devc->frame_limit = g_variant_get_uint64(data);
	349	ret = SR_OK;
	350	break;
	351	case SR_CONF_TRIGGER_SOURCE:
	352	tmp = g_variant_get_string(data, NULL);
	353	for (i = 0; (*model->trigger_sources)[i]; i++) {
	354	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	355	continue;
	356	state->trigger_source = i;
	357	/* TODO: A and B trigger support possible? */
	358	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	359	break;
	360	}
	361	break;
	362	case SR_CONF_VDIV:
	363	if (cg_type == CG_NONE) {
	364	sr_err("No channel group specified.");
	365	return SR_ERR_CHANNEL_GROUP;
	366	}
	367
	368	g_variant_get(data, "(tt)", &p, &q);
	369
f3c60fb6 SA	370	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	371	if (p != dlm_vdivs[i][0] \|\|
	372	q != dlm_vdivs[i][1])
8ab929d6	373	continue;
a9308652	374	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	375	if (cg != devc->analog_groups[j - 1])
	376	continue;
	377	state->analog_states[j - 1].vdiv = i;
	378	g_ascii_formatd(float_str, sizeof(float_str),
	379	"%E", (float) p / q);
	380	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	381	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	382	return SR_ERR;
	383
	384	break;
	385	}
	386
	387	ret = SR_OK;
	388	break;
	389	}
	390	break;
	391	case SR_CONF_TIMEBASE:
	392	g_variant_get(data, "(tt)", &p, &q);
	393
f3c60fb6 SA	394	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	395	if (p != dlm_timebases[i][0] \|\|
	396	q != dlm_timebases[i][1])
8ab929d6 SA	397	continue;
	398	state->timebase = i;
	399	g_ascii_formatd(float_str, sizeof(float_str),
	400	"%E", (float) p / q);
	401	ret = dlm_timebase_set(sdi->conn, float_str);
	402	update_sample_rate = TRUE;
	403	break;
	404	}
	405	break;
	406	case SR_CONF_HORIZ_TRIGGERPOS:
	407	tmp_d = g_variant_get_double(data);
	408
	409	/* TODO: Check if the calculation makes sense for the DLM. */
	410	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	411	return SR_ERR;
	412
	413	state->horiz_triggerpos = tmp_d;
	414	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	415	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	416	dlm_timebases[state->timebase][1])
ac10a927	417	* model->num_xdivs;
8ab929d6 SA	418
	419	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	420	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	421	break;
	422	case SR_CONF_TRIGGER_SLOPE:
	423	tmp = g_variant_get_string(data, NULL);
	424
	425	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	426	return SR_ERR_ARG;
	427
	428	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	429	state->trigger_slope = (tmp[0] == 'r') ?
	430	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	431
	432	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	433	break;
	434	case SR_CONF_COUPLING:
	435	if (cg_type == CG_NONE) {
	436	sr_err("No channel group specified.");
	437	return SR_ERR_CHANNEL_GROUP;
	438	}
	439
	440	tmp = g_variant_get_string(data, NULL);
	441
	442	for (i = 0; (*model->coupling_options)[i]; i++) {
	443	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	444	continue;
a9308652	445	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	446	if (cg != devc->analog_groups[j - 1])
	447	continue;
	448	state->analog_states[j-1].coupling = i;
	449
	450	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	451	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	452	return SR_ERR;
	453	break;
	454	}
	455
	456	ret = SR_OK;
	457	break;
	458	}
	459	break;
	460	default:
	461	ret = SR_ERR_NA;
	462	break;
	463	}
	464
	465	if (ret == SR_OK)
	466	ret = sr_scpi_get_opc(sdi->conn);
	467
	468	if (ret == SR_OK && update_sample_rate)
	469	ret = dlm_sample_rate_query(sdi);
	470
	471	return ret;
	472	}
	473
c65a021c SA	474	static int config_channel_set(const struct sr_dev_inst *sdi,
	475	struct sr_channel *ch, unsigned int changes)
	476	{
a9308652	477	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	478	if (changes != SR_CHANNEL_SET_ENABLED)
	479	return SR_ERR_NA;
	480
	481	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	482	}
	483
584560f1	484	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	485	const struct sr_channel_group *cg)
8ab929d6	486	{
cf0280fa AJ	487	int cg_type = CG_NONE;
cf0280fa AJ	488	struct dev_context *devc = NULL;
329733d9	489	const struct scope_config *model = NULL;
8ab929d6	490
9a512113	491	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or channel group. */
f3c60fb6 SA	492	if (key == SR_CONF_SCAN_OPTIONS) {
	493	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	494	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	495	return SR_OK;
	496	}
8ab929d6	497
f3c60fb6 SA	498	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	499	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	500	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	501	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	502	return SR_OK;
cf0280fa	503	}
8ab929d6	504
f3c60fb6 SA	505	if (!sdi)
	506	return SR_ERR_ARG;
	507
	508	devc = sdi->priv;
	509	model = devc->model_config;
	510
a9308652 UH	511	/*
a9308652 UH	512	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
9a512113	513	* specific to a channel group must be returned.
a9308652	514	*/
f3c60fb6 SA	515	if (!cg) {
	516	switch (key) {
	517	case SR_CONF_DEVICE_OPTIONS:
	518	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	519	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	520	return SR_OK;
	521	case SR_CONF_TIMEBASE:
	522	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	523	return SR_OK;
	524	case SR_CONF_TRIGGER_SOURCE:
	525	if (!model)
	526	return SR_ERR_ARG;
	527	data = g_variant_new_strv(model->trigger_sources,
	528	g_strv_length((char *)model->trigger_sources));
	529	return SR_OK;
	530	case SR_CONF_TRIGGER_SLOPE:
	531	*data = g_variant_new_strv(dlm_trigger_slopes,
	532	g_strv_length((char **)dlm_trigger_slopes));
	533	return SR_OK;
	534	case SR_CONF_NUM_HDIV:
49f49cb5	535	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	536	return SR_OK;
	537	default:
	538	return SR_ERR_NA;
	539	}
	540	}
	541
	542	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	543	return SR_ERR;
	544
8ab929d6	545	switch (key) {
8ab929d6	546	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	547	if (cg_type == CG_ANALOG) {
584560f1	548	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	549	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	550	} else if (cg_type == CG_DIGITAL) {
	551	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	552	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	553	} else {
584560f1 BV	554	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	555	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	556	}
	557	break;
	558	case SR_CONF_COUPLING:
	559	if (cg_type == CG_NONE)
	560	return SR_ERR_CHANNEL_GROUP;
	561	data = g_variant_new_strv(model->coupling_options,
ac10a927	562	g_strv_length((char *)model->coupling_options));
8ab929d6	563	break;
8ab929d6 SA	564	case SR_CONF_VDIV:
	565	if (cg_type == CG_NONE)
	566	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	567	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	568	break;
	569	default:
	570	return SR_ERR_NA;
	571	}
	572
	573	return SR_OK;
	574	}
	575
	576	static int dlm_check_channels(GSList *channels)
	577	{
	578	GSList *l;
	579	struct sr_channel *ch;
	580	gboolean enabled_pod1, enabled_chan4;
	581
	582	enabled_pod1 = enabled_chan4 = FALSE;
	583
	584	/* Note: On the DLM2000, CH4 and Logic are shared. */
	585	/* TODO Handle non-DLM2000 models. */
	586	for (l = channels; l; l = l->next) {
	587	ch = l->data;
	588	switch (ch->type) {
	589	case SR_CHANNEL_ANALOG:
	590	if (ch->index == 3)
	591	enabled_chan4 = TRUE;
	592	break;
	593	case SR_CHANNEL_LOGIC:
	594	enabled_pod1 = TRUE;
	595	break;
	596	default:
	597	return SR_ERR;
	598	}
	599	}
	600
	601	if (enabled_pod1 && enabled_chan4)
	602	return SR_ERR;
	603
	604	return SR_OK;
	605	}
	606
695dc859	607	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	608	{
	609	GSList *l;
	610	gboolean digital_added;
	611	struct sr_channel *ch;
	612	struct dev_context *devc;
	613	struct sr_scpi_dev_inst *scpi;
	614
ac10a927 SA	615	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	616	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	617
	618	scpi = sdi->conn;
	619	devc = sdi->priv;
	620	digital_added = FALSE;
	621
	622	g_slist_free(devc->enabled_channels);
	623	devc->enabled_channels = NULL;
	624
	625	for (l = sdi->channels; l; l = l->next) {
	626	ch = l->data;
	627	if (!ch->enabled)
	628	continue;
	629	/* Only add a single digital channel. */
	630	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	631	devc->enabled_channels = g_slist_append(
ac10a927 SA	632	devc->enabled_channels, ch);
	633	if (ch->type == SR_CHANNEL_LOGIC)
	634	digital_added = TRUE;
8ab929d6 SA	635	}
	636	}
	637
	638	if (!devc->enabled_channels)
	639	return SR_ERR;
	640
	641	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	642	sr_err("Invalid channel configuration specified!");
	643	return SR_ERR_NA;
	644	}
	645
af3487ec SA	646	/* Request data for the first enabled channel. */
	647	devc->current_channel = devc->enabled_channels;
	648	dlm_channel_data_request(sdi);
	649
0028d5a1 SA	650	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	651	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	652	dlm_data_receive, (void *)sdi);
	653
	654	return SR_OK;
	655	}
	656
695dc859	657	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	658	{
8ab929d6 SA	659	struct dev_context *devc;
8ab929d6	660
bee2b016	661	std_session_send_df_end(sdi);
8ab929d6	662
8ab929d6 SA	663	devc = sdi->priv;
	664
	665	devc->num_frames = 0;
	666	g_slist_free(devc->enabled_channels);
	667	devc->enabled_channels = NULL;
af3487ec SA	668
af3487ec SA	669	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	670
	671	return SR_OK;
	672	}
10763937	673
dd5c48a6	674	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	675	.name = "yokogawa-dlm",
ac10a927	676	.longname = "Yokogawa DL/DLM",
10763937	677	.api_version = 1,
c2fdcc25	678	.init = std_init,
700d6b64	679	.cleanup = std_cleanup,
8ab929d6	680	.scan = scan,
c01bf34c	681	.dev_list = std_dev_list,
8ab929d6 SA	682	.dev_clear = dev_clear,
	683	.config_get = config_get,
	684	.config_set = config_set,
c65a021c	685	.config_channel_set = config_channel_set,
8ab929d6 SA	686	.config_list = config_list,
	687	.dev_open = dev_open,
	688	.dev_close = dev_close,
	689	.dev_acquisition_start = dev_acquisition_start,
	690	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	691	.context = NULL,
10763937	692	};
dd5c48a6	693	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);