[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"

SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info;

static const char *MANUFACTURER_ID = "YOKOGAWA";
static const char *MANUFACTURER_NAME = "Yokogawa";

static const uint32_t dlm_scanopts[] = {
	SR_CONF_CONN,
};

static const uint32_t dlm_drvopts[] = {
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_OSCILLOSCOPE,
};

static const uint32_t dlm_devopts[] = {
	SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET,
	SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_NUM_HDIV | SR_CONF_GET,
	SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const uint32_t dlm_analog_devopts[] = {
	SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_NUM_VDIV | SR_CONF_GET,
};

static const uint32_t dlm_digital_devopts[] = {
};

enum {
	CG_INVALID = -1,
	CG_NONE,
	CG_ANALOG,
	CG_DIGITAL,
};

static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

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->status = SR_ST_ACTIVE;
	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;

	sr_scpi_close(sdi->conn);

	sdi->status = SR_ST_INACTIVE;
	return sdi;

fail:
	if (hw_info)
		sr_scpi_hw_info_free(hw_info);
	if (sdi)
		sr_dev_inst_free(sdi);
	g_free(devc);

	return NULL;
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	return sr_scpi_scan(di->context, options, probe_usbtmc_device);
}

static GSList *dev_list(const struct sr_dev_driver *di)
{
	return ((struct drv_context *)(di->context))->instances;
}

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;
}

static int cleanup(const struct sr_dev_driver *di)
{
	dev_clear(di);

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

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

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

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

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

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

	return ret;
}

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

	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);

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

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

	return g_variant_builder_end(&gvb);
}

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

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

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

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

	ret = SR_ERR_NA;

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

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

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

				break;
			}

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

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

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

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

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

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

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

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

		tmp = g_variant_get_string(data, NULL);

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

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

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

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

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

	return ret;
}

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

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

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

	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
		return SR_OK;
	}

	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;
	model = devc->model_config;

	/*
	 * If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	 * specific to a probe group must be returned.
	 */
	if (!cg) {
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
					dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
			return SR_OK;
		case SR_CONF_TIMEBASE:
			*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
			return SR_OK;
		case SR_CONF_TRIGGER_SOURCE:
			if (!model)
				return SR_ERR_ARG;
			*data = g_variant_new_strv(*model->trigger_sources,
					g_strv_length((char **)*model->trigger_sources));
			return SR_OK;
		case SR_CONF_TRIGGER_SLOPE:
			*data = g_variant_new_strv(dlm_trigger_slopes,
					g_strv_length((char **)dlm_trigger_slopes));
			return SR_OK;
		case SR_CONF_NUM_HDIV:
			*data = g_variant_new_uint32(model->num_xdivs);
			return SR_OK;
		default:
			return SR_ERR_NA;
		}
	}

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

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		if (cg_type == CG_ANALOG) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
		} else if (cg_type == CG_DIGITAL) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
		} else {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				NULL, 0, sizeof(uint32_t));
		}
		break;
	case SR_CONF_COUPLING:
		if (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*data = g_variant_new_strv(*model->coupling_options,
				g_strv_length((char **)*model->coupling_options));
		break;
	case SR_CONF_VDIV:
		if (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dlm_check_channels(GSList *channels)
{
	GSList *l;
	struct sr_channel *ch;
	gboolean enabled_pod1, enabled_chan4;

	enabled_pod1 = enabled_chan4 = FALSE;

	/* Note: On the DLM2000, CH4 and Logic are shared. */
	/* TODO Handle non-DLM2000 models. */
	for (l = channels; l; l = l->next) {
		ch = l->data;
		switch (ch->type) {
		case SR_CHANNEL_ANALOG:
			if (ch->index == 3)
				enabled_chan4 = TRUE;
			break;
		case SR_CHANNEL_LOGIC:
			enabled_pod1 = TRUE;
			break;
		default:
			return SR_ERR;
		}
	}

	if (enabled_pod1 && enabled_chan4)
		return SR_ERR;

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
	GSList *l;
	gboolean digital_added;
	struct sr_channel *ch;
	struct dev_context *devc;
	struct sr_scpi_dev_inst *scpi;

	(void)cb_data;

	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, void *cb_data)
{
	struct dev_context *devc;
	struct sr_datafeed_packet packet;

	(void)cb_data;

	packet.type = SR_DF_END;
	packet.payload = NULL;
	sr_session_send(sdi, &packet);

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

	devc = sdi->priv;

	devc->num_frames = 0;
	g_slist_free(devc->enabled_channels);
	devc->enabled_channels = NULL;

	sr_scpi_source_remove(sdi->session, sdi->conn);

	return SR_OK;
}

SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	.name = "yokogawa-dlm",
	.longname = "Yokogawa DL/DLM",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = 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,
};
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
8ab929d6	26	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info;
8ab929d6	27
329733d9 UH	28	static const char *MANUFACTURER_ID = "YOKOGAWA";
329733d9 UH	29	static const char *MANUFACTURER_NAME = "Yokogawa";
8ab929d6	30
f3c60fb6 SA	31	static const uint32_t dlm_scanopts[] = {
	32	SR_CONF_CONN,
	33	};
	34
	35	static const uint32_t dlm_drvopts[] = {
cf0280fa AJ	36	SR_CONF_LOGIC_ANALYZER,
	37	SR_CONF_OSCILLOSCOPE,
	38	};
	39
f3c60fb6 SA	40	static const uint32_t dlm_devopts[] = {
	41	SR_CONF_LIMIT_FRAMES \| SR_CONF_GET \| SR_CONF_SET,
	42	SR_CONF_SAMPLERATE \| SR_CONF_GET,
	43	SR_CONF_TIMEBASE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	44	SR_CONF_NUM_HDIV \| SR_CONF_GET,
	45	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_GET \| SR_CONF_SET,
	46	SR_CONF_TRIGGER_SLOPE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	47	SR_CONF_TRIGGER_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	48	};
	49
	50	static const uint32_t dlm_analog_devopts[] = {
	51	SR_CONF_COUPLING \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	52	SR_CONF_VDIV \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	53	SR_CONF_NUM_VDIV \| SR_CONF_GET,
	54	};
	55
	56	static const uint32_t dlm_digital_devopts[] = {
	57	};
	58
8ab929d6 SA	59	enum {
	60	CG_INVALID = -1,
	61	CG_NONE,
	62	CG_ANALOG,
	63	CG_DIGITAL,
	64	};
	65
4f840ce9	66	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
8ab929d6 SA	67	{
	68	return std_init(sr_ctx, di, LOG_PREFIX);
	69	}
	70
	71	static struct sr_dev_inst probe_usbtmc_device(struct sr_scpi_dev_inst scpi)
	72	{
	73	struct sr_dev_inst *sdi;
	74	struct dev_context *devc;
	75	struct sr_scpi_hw_info *hw_info;
	76	char *model_name;
	77	int model_index;
	78
	79	sdi = NULL;
	80	devc = NULL;
	81	hw_info = NULL;
	82
	83	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
	84	sr_info("Couldn't get IDN response.");
	85	goto fail;
	86	}
	87
	88	if (strcmp(hw_info->manufacturer, MANUFACTURER_ID) != 0)
	89	goto fail;
	90
	91	if (dlm_model_get(hw_info->model, &model_name, &model_index) != SR_OK)
	92	goto fail;
	93
aac29cc1	94	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	95	sdi->status = SR_ST_ACTIVE;
	96	sdi->vendor = g_strdup(MANUFACTURER_NAME);
	97	sdi->model = g_strdup(model_name);
	98	sdi->version = g_strdup(hw_info->firmware_version);
8ab929d6	99
d1314831 SA	100	sdi->serial_num = g_strdup(hw_info->serial_number);
d1314831 SA	101
8ab929d6 SA	102	sr_scpi_hw_info_free(hw_info);
	103	hw_info = NULL;
	104
ac10a927	105	devc = g_malloc0(sizeof(struct dev_context));
8ab929d6	106
4f840ce9	107	sdi->driver = &yokogawa_dlm_driver_info;
8ab929d6 SA	108	sdi->priv = devc;
	109	sdi->inst_type = SR_INST_SCPI;
	110	sdi->conn = scpi;
	111
	112	if (dlm_device_init(sdi, model_index) != SR_OK)
	113	goto fail;
	114
	115	sr_scpi_close(sdi->conn);
	116
	117	sdi->status = SR_ST_INACTIVE;
	118	return sdi;
	119
	120	fail:
	121	if (hw_info)
	122	sr_scpi_hw_info_free(hw_info);
	123	if (sdi)
	124	sr_dev_inst_free(sdi);
b1f83103	125	g_free(devc);
8ab929d6 SA	126
	127	return NULL;
	128	}
	129
4f840ce9	130	static GSList scan(struct sr_dev_driver di, GSList *options)
8ab929d6	131	{
41812aca	132	return sr_scpi_scan(di->context, options, probe_usbtmc_device);
8ab929d6 SA	133	}
8ab929d6 SA	134
4f840ce9	135	static GSList dev_list(const struct sr_dev_driver di)
8ab929d6	136	{
41812aca	137	return ((struct drv_context *)(di->context))->instances;
8ab929d6 SA	138	}
	139
	140	static void clear_helper(void *priv)
	141	{
	142	struct dev_context *devc;
	143
	144	devc = priv;
	145
	146	dlm_scope_state_destroy(devc->model_state);
	147
	148	g_free(devc->analog_groups);
	149	g_free(devc->digital_groups);
	150	g_free(devc);
	151	}
	152
4f840ce9	153	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6 SA	154	{
	155	return std_dev_clear(di, clear_helper);
	156	}
	157
	158	static int dev_open(struct sr_dev_inst *sdi)
	159	{
	160	if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
	161	return SR_ERR;
	162
	163	if (dlm_scope_state_query(sdi) != SR_OK)
	164	return SR_ERR;
	165
	166	sdi->status = SR_ST_ACTIVE;
	167
	168	return SR_OK;
	169	}
	170
	171	static int dev_close(struct sr_dev_inst *sdi)
	172	{
	173	if (sdi->status == SR_ST_INACTIVE)
	174	return SR_OK;
	175
	176	sr_scpi_close(sdi->conn);
	177
	178	sdi->status = SR_ST_INACTIVE;
	179
	180	return SR_OK;
	181	}
	182
4f840ce9	183	static int cleanup(const struct sr_dev_driver *di)
8ab929d6	184	{
4f840ce9	185	dev_clear(di);
8ab929d6 SA	186
	187	return SR_OK;
	188	}
	189
	190	/**
	191	* Check which category a given channel group belongs to.
	192	*
	193	* @param devc Our internal device context.
a9308652	194	* @param cg The channel group to check.
8ab929d6	195	*
a9308652 UH	196	* @retval CG_NONE cg is NULL
a9308652 UH	197	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	198	* @retval CG_DIGITAL cg is a digital group
	199	* @retval CG_INVALID cg is something else
	200	*/
	201	static int check_channel_group(struct dev_context *devc,
ac10a927	202	const struct sr_channel_group *cg)
8ab929d6 SA	203	{
8ab929d6 SA	204	unsigned int i;
329733d9	205	const struct scope_config *model;
8ab929d6 SA	206
	207	model = devc->model_config;
	208
	209	if (!cg)
	210	return CG_NONE;
	211
a9308652	212	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	213	if (cg == devc->analog_groups[i])
	214	return CG_ANALOG;
	215
a9308652	216	for (i = 0; i < model->pods; i++)
8ab929d6 SA	217	if (cg == devc->digital_groups[i])
	218	return CG_DIGITAL;
	219
	220	sr_err("Invalid channel group specified.");
	221	return CG_INVALID;
	222	}
	223
584560f1	224	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	225	const struct sr_channel_group *cg)
8ab929d6 SA	226	{
	227	int ret, cg_type;
	228	unsigned int i;
	229	struct dev_context *devc;
329733d9	230	const struct scope_config *model;
8ab929d6 SA	231	struct scope_state *state;
	232
	233	if (!sdi \|\| !(devc = sdi->priv))
	234	return SR_ERR_ARG;
	235
	236	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	237	return SR_ERR;
	238
	239	ret = SR_ERR_NA;
	240	model = devc->model_config;
	241	state = devc->model_state;
	242
	243	switch (key) {
bf622e6d	244	case SR_CONF_NUM_HDIV:
8ab929d6 SA	245	*data = g_variant_new_int32(model->num_xdivs);
	246	ret = SR_OK;
	247	break;
	248	case SR_CONF_TIMEBASE:
	249	*data = g_variant_new("(tt)",
f3c60fb6 SA	250	dlm_timebases[state->timebase][0],
f3c60fb6 SA	251	dlm_timebases[state->timebase][1]);
8ab929d6 SA	252	ret = SR_OK;
	253	break;
	254	case SR_CONF_NUM_VDIV:
	255	if (cg_type == CG_NONE) {
	256	sr_err("No channel group specified.");
	257	return SR_ERR_CHANNEL_GROUP;
	258	} else if (cg_type == CG_ANALOG) {
	259	*data = g_variant_new_int32(model->num_ydivs);
	260	ret = SR_OK;
	261	break;
	262	} else {
	263	ret = SR_ERR_NA;
	264	}
	265	break;
	266	case SR_CONF_VDIV:
	267	ret = SR_ERR_NA;
	268	if (cg_type == CG_NONE) {
	269	sr_err("No channel group specified.");
	270	return SR_ERR_CHANNEL_GROUP;
	271	} else if (cg_type != CG_ANALOG)
	272	break;
	273
a9308652	274	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	275	if (cg != devc->analog_groups[i])
	276	continue;
	277	*data = g_variant_new("(tt)",
f3c60fb6 SA	278	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	279	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	280	ret = SR_OK;
	281	break;
	282	}
	283	break;
	284	case SR_CONF_TRIGGER_SOURCE:
	285	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	286	ret = SR_OK;
	287	break;
	288	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	289	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	290	ret = SR_OK;
	291	break;
	292	case SR_CONF_HORIZ_TRIGGERPOS:
	293	*data = g_variant_new_double(state->horiz_triggerpos);
	294	ret = SR_OK;
	295	break;
	296	case SR_CONF_COUPLING:
	297	ret = SR_ERR_NA;
	298	if (cg_type == CG_NONE) {
	299	sr_err("No channel group specified.");
	300	return SR_ERR_CHANNEL_GROUP;
	301	} else if (cg_type != CG_ANALOG)
	302	break;
	303
a9308652	304	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	305	if (cg != devc->analog_groups[i])
	306	continue;
	307	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	308	ret = SR_OK;
	309	break;
	310	}
	311	break;
	312	case SR_CONF_SAMPLERATE:
	313	*data = g_variant_new_uint64(state->sample_rate);
	314	ret = SR_OK;
	315	break;
	316	default:
	317	ret = SR_ERR_NA;
	318	}
	319
	320	return ret;
	321	}
	322
	323	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	324	{
	325	unsigned int i;
	326	GVariant *rational[2];
	327	GVariantBuilder gvb;
	328
	329	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	330
	331	for (i = 0; i < n; i++) {
	332	rational[0] = g_variant_new_uint64((*array)[i][0]);
	333	rational[1] = g_variant_new_uint64((*array)[i][1]);
	334
	335	/* FIXME: Valgrind reports a memory leak here. */
	336	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	337	}
	338
	339	return g_variant_builder_end(&gvb);
	340	}
	341
584560f1	342	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	343	const struct sr_channel_group *cg)
8ab929d6 SA	344	{
	345	int ret, cg_type;
	346	unsigned int i, j;
	347	char float_str[30];
	348	struct dev_context *devc;
329733d9	349	const struct scope_config *model;
8ab929d6 SA	350	struct scope_state *state;
	351	const char *tmp;
	352	uint64_t p, q;
	353	double tmp_d;
	354	gboolean update_sample_rate;
	355
	356	if (!sdi \|\| !(devc = sdi->priv))
	357	return SR_ERR_ARG;
	358
	359	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	360	return SR_ERR;
	361
	362	model = devc->model_config;
	363	state = devc->model_state;
	364	update_sample_rate = FALSE;
	365
	366	ret = SR_ERR_NA;
	367
	368	switch (key) {
	369	case SR_CONF_LIMIT_FRAMES:
	370	devc->frame_limit = g_variant_get_uint64(data);
	371	ret = SR_OK;
	372	break;
	373	case SR_CONF_TRIGGER_SOURCE:
	374	tmp = g_variant_get_string(data, NULL);
	375	for (i = 0; (*model->trigger_sources)[i]; i++) {
	376	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	377	continue;
	378	state->trigger_source = i;
	379	/* TODO: A and B trigger support possible? */
	380	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	381	break;
	382	}
	383	break;
	384	case SR_CONF_VDIV:
	385	if (cg_type == CG_NONE) {
	386	sr_err("No channel group specified.");
	387	return SR_ERR_CHANNEL_GROUP;
	388	}
	389
	390	g_variant_get(data, "(tt)", &p, &q);
	391
f3c60fb6 SA	392	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	393	if (p != dlm_vdivs[i][0] \|\|
	394	q != dlm_vdivs[i][1])
8ab929d6	395	continue;
a9308652	396	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	397	if (cg != devc->analog_groups[j - 1])
	398	continue;
	399	state->analog_states[j - 1].vdiv = i;
	400	g_ascii_formatd(float_str, sizeof(float_str),
	401	"%E", (float) p / q);
	402	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	403	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	404	return SR_ERR;
	405
	406	break;
	407	}
	408
	409	ret = SR_OK;
	410	break;
	411	}
	412	break;
	413	case SR_CONF_TIMEBASE:
	414	g_variant_get(data, "(tt)", &p, &q);
	415
f3c60fb6 SA	416	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	417	if (p != dlm_timebases[i][0] \|\|
	418	q != dlm_timebases[i][1])
8ab929d6 SA	419	continue;
	420	state->timebase = i;
	421	g_ascii_formatd(float_str, sizeof(float_str),
	422	"%E", (float) p / q);
	423	ret = dlm_timebase_set(sdi->conn, float_str);
	424	update_sample_rate = TRUE;
	425	break;
	426	}
	427	break;
	428	case SR_CONF_HORIZ_TRIGGERPOS:
	429	tmp_d = g_variant_get_double(data);
	430
	431	/* TODO: Check if the calculation makes sense for the DLM. */
	432	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	433	return SR_ERR;
	434
	435	state->horiz_triggerpos = tmp_d;
	436	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	437	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	438	dlm_timebases[state->timebase][1])
ac10a927	439	* model->num_xdivs;
8ab929d6 SA	440
	441	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	442	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	443	break;
	444	case SR_CONF_TRIGGER_SLOPE:
	445	tmp = g_variant_get_string(data, NULL);
	446
	447	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	448	return SR_ERR_ARG;
	449
	450	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	451	state->trigger_slope = (tmp[0] == 'r') ?
	452	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	453
	454	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	455	break;
	456	case SR_CONF_COUPLING:
	457	if (cg_type == CG_NONE) {
	458	sr_err("No channel group specified.");
	459	return SR_ERR_CHANNEL_GROUP;
	460	}
	461
	462	tmp = g_variant_get_string(data, NULL);
	463
	464	for (i = 0; (*model->coupling_options)[i]; i++) {
	465	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	466	continue;
a9308652	467	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	468	if (cg != devc->analog_groups[j - 1])
	469	continue;
	470	state->analog_states[j-1].coupling = i;
	471
	472	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	473	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	474	return SR_ERR;
	475	break;
	476	}
	477
	478	ret = SR_OK;
	479	break;
	480	}
	481	break;
	482	default:
	483	ret = SR_ERR_NA;
	484	break;
	485	}
	486
	487	if (ret == SR_OK)
	488	ret = sr_scpi_get_opc(sdi->conn);
	489
	490	if (ret == SR_OK && update_sample_rate)
	491	ret = dlm_sample_rate_query(sdi);
	492
	493	return ret;
	494	}
	495
c65a021c SA	496	static int config_channel_set(const struct sr_dev_inst *sdi,
	497	struct sr_channel *ch, unsigned int changes)
	498	{
a9308652	499	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	500	if (changes != SR_CHANNEL_SET_ENABLED)
	501	return SR_ERR_NA;
	502
	503	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	504	}
	505
584560f1	506	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	507	const struct sr_channel_group *cg)
8ab929d6	508	{
cf0280fa AJ	509	int cg_type = CG_NONE;
cf0280fa AJ	510	struct dev_context *devc = NULL;
329733d9	511	const struct scope_config *model = NULL;
8ab929d6	512
f3c60fb6 SA	513	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	514	if (key == SR_CONF_SCAN_OPTIONS) {
	515	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	516	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	517	return SR_OK;
	518	}
8ab929d6	519
f3c60fb6 SA	520	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	521	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	522	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	523	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	524	return SR_OK;
cf0280fa	525	}
8ab929d6	526
f3c60fb6 SA	527	if (!sdi)
	528	return SR_ERR_ARG;
	529
	530	devc = sdi->priv;
	531	model = devc->model_config;
	532
a9308652 UH	533	/*
	534	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	535	* specific to a probe group must be returned.
	536	*/
f3c60fb6 SA	537	if (!cg) {
	538	switch (key) {
	539	case SR_CONF_DEVICE_OPTIONS:
	540	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	541	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	542	return SR_OK;
	543	case SR_CONF_TIMEBASE:
	544	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	545	return SR_OK;
	546	case SR_CONF_TRIGGER_SOURCE:
	547	if (!model)
	548	return SR_ERR_ARG;
	549	data = g_variant_new_strv(model->trigger_sources,
	550	g_strv_length((char *)model->trigger_sources));
	551	return SR_OK;
	552	case SR_CONF_TRIGGER_SLOPE:
	553	*data = g_variant_new_strv(dlm_trigger_slopes,
	554	g_strv_length((char **)dlm_trigger_slopes));
	555	return SR_OK;
	556	case SR_CONF_NUM_HDIV:
49f49cb5	557	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	558	return SR_OK;
	559	default:
	560	return SR_ERR_NA;
	561	}
	562	}
	563
	564	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	565	return SR_ERR;
	566
8ab929d6	567	switch (key) {
8ab929d6	568	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	569	if (cg_type == CG_ANALOG) {
584560f1	570	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	571	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	572	} else if (cg_type == CG_DIGITAL) {
	573	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	574	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	575	} else {
584560f1 BV	576	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	577	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	578	}
	579	break;
	580	case SR_CONF_COUPLING:
	581	if (cg_type == CG_NONE)
	582	return SR_ERR_CHANNEL_GROUP;
	583	data = g_variant_new_strv(model->coupling_options,
ac10a927	584	g_strv_length((char *)model->coupling_options));
8ab929d6	585	break;
8ab929d6 SA	586	case SR_CONF_VDIV:
	587	if (cg_type == CG_NONE)
	588	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	589	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	590	break;
	591	default:
	592	return SR_ERR_NA;
	593	}
	594
	595	return SR_OK;
	596	}
	597
	598	static int dlm_check_channels(GSList *channels)
	599	{
	600	GSList *l;
	601	struct sr_channel *ch;
	602	gboolean enabled_pod1, enabled_chan4;
	603
	604	enabled_pod1 = enabled_chan4 = FALSE;
	605
	606	/* Note: On the DLM2000, CH4 and Logic are shared. */
	607	/* TODO Handle non-DLM2000 models. */
	608	for (l = channels; l; l = l->next) {
	609	ch = l->data;
	610	switch (ch->type) {
	611	case SR_CHANNEL_ANALOG:
	612	if (ch->index == 3)
	613	enabled_chan4 = TRUE;
	614	break;
	615	case SR_CHANNEL_LOGIC:
	616	enabled_pod1 = TRUE;
	617	break;
	618	default:
	619	return SR_ERR;
	620	}
	621	}
	622
	623	if (enabled_pod1 && enabled_chan4)
	624	return SR_ERR;
	625
	626	return SR_OK;
	627	}
	628
8ab929d6 SA	629	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	630	{
	631	GSList *l;
	632	gboolean digital_added;
	633	struct sr_channel *ch;
	634	struct dev_context *devc;
	635	struct sr_scpi_dev_inst *scpi;
	636
	637	(void)cb_data;
	638
ac10a927 SA	639	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	640	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	641
	642	scpi = sdi->conn;
	643	devc = sdi->priv;
	644	digital_added = FALSE;
	645
	646	g_slist_free(devc->enabled_channels);
	647	devc->enabled_channels = NULL;
	648
	649	for (l = sdi->channels; l; l = l->next) {
	650	ch = l->data;
	651	if (!ch->enabled)
	652	continue;
	653	/* Only add a single digital channel. */
	654	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	655	devc->enabled_channels = g_slist_append(
ac10a927 SA	656	devc->enabled_channels, ch);
	657	if (ch->type == SR_CHANNEL_LOGIC)
	658	digital_added = TRUE;
8ab929d6 SA	659	}
	660	}
	661
	662	if (!devc->enabled_channels)
	663	return SR_ERR;
	664
	665	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	666	sr_err("Invalid channel configuration specified!");
	667	return SR_ERR_NA;
	668	}
	669
af3487ec SA	670	/* Request data for the first enabled channel. */
	671	devc->current_channel = devc->enabled_channels;
	672	dlm_channel_data_request(sdi);
	673
0028d5a1 SA	674	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	675	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	676	dlm_data_receive, (void *)sdi);
	677
	678	return SR_OK;
	679	}
	680
	681	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	682	{
	683	struct dev_context *devc;
8ab929d6 SA	684	struct sr_datafeed_packet packet;
	685
	686	(void)cb_data;
	687
	688	packet.type = SR_DF_END;
	689	packet.payload = NULL;
	690	sr_session_send(sdi, &packet);
	691
	692	if (sdi->status != SR_ST_ACTIVE)
	693	return SR_ERR_DEV_CLOSED;
	694
	695	devc = sdi->priv;
	696
	697	devc->num_frames = 0;
	698	g_slist_free(devc->enabled_channels);
	699	devc->enabled_channels = NULL;
af3487ec SA	700
af3487ec SA	701	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	702
	703	return SR_OK;
	704	}
10763937 SA	705
	706	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	707	.name = "yokogawa-dlm",
ac10a927	708	.longname = "Yokogawa DL/DLM",
10763937	709	.api_version = 1,
8ab929d6 SA	710	.init = init,
	711	.cleanup = cleanup,
	712	.scan = scan,
	713	.dev_list = dev_list,
	714	.dev_clear = dev_clear,
	715	.config_get = config_get,
	716	.config_set = config_set,
c65a021c	717	.config_channel_set = config_channel_set,
8ab929d6 SA	718	.config_list = config_list,
	719	.dev_open = dev_open,
	720	.dev_close = dev_close,
	721	.dev_acquisition_start = dev_acquisition_start,
	722	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	723	.context = NULL,
10763937	724	};