[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;

	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
8ab929d6 SA	239	model = devc->model_config;
	240	state = devc->model_state;
	241
	242	switch (key) {
bf622e6d	243	case SR_CONF_NUM_HDIV:
8ab929d6 SA	244	*data = g_variant_new_int32(model->num_xdivs);
	245	ret = SR_OK;
	246	break;
	247	case SR_CONF_TIMEBASE:
	248	*data = g_variant_new("(tt)",
f3c60fb6 SA	249	dlm_timebases[state->timebase][0],
f3c60fb6 SA	250	dlm_timebases[state->timebase][1]);
8ab929d6 SA	251	ret = SR_OK;
	252	break;
	253	case SR_CONF_NUM_VDIV:
	254	if (cg_type == CG_NONE) {
	255	sr_err("No channel group specified.");
	256	return SR_ERR_CHANNEL_GROUP;
	257	} else if (cg_type == CG_ANALOG) {
	258	*data = g_variant_new_int32(model->num_ydivs);
	259	ret = SR_OK;
	260	break;
	261	} else {
	262	ret = SR_ERR_NA;
	263	}
	264	break;
	265	case SR_CONF_VDIV:
	266	ret = SR_ERR_NA;
	267	if (cg_type == CG_NONE) {
	268	sr_err("No channel group specified.");
	269	return SR_ERR_CHANNEL_GROUP;
	270	} else if (cg_type != CG_ANALOG)
	271	break;
	272
a9308652	273	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	274	if (cg != devc->analog_groups[i])
	275	continue;
	276	*data = g_variant_new("(tt)",
f3c60fb6 SA	277	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	278	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	279	ret = SR_OK;
	280	break;
	281	}
	282	break;
	283	case SR_CONF_TRIGGER_SOURCE:
	284	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	285	ret = SR_OK;
	286	break;
	287	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	288	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	289	ret = SR_OK;
	290	break;
	291	case SR_CONF_HORIZ_TRIGGERPOS:
	292	*data = g_variant_new_double(state->horiz_triggerpos);
	293	ret = SR_OK;
	294	break;
	295	case SR_CONF_COUPLING:
	296	ret = SR_ERR_NA;
	297	if (cg_type == CG_NONE) {
	298	sr_err("No channel group specified.");
	299	return SR_ERR_CHANNEL_GROUP;
	300	} else if (cg_type != CG_ANALOG)
	301	break;
	302
a9308652	303	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	304	if (cg != devc->analog_groups[i])
	305	continue;
	306	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	307	ret = SR_OK;
	308	break;
	309	}
	310	break;
	311	case SR_CONF_SAMPLERATE:
	312	*data = g_variant_new_uint64(state->sample_rate);
	313	ret = SR_OK;
	314	break;
	315	default:
	316	ret = SR_ERR_NA;
	317	}
	318
	319	return ret;
	320	}
	321
	322	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	323	{
	324	unsigned int i;
	325	GVariant *rational[2];
	326	GVariantBuilder gvb;
	327
	328	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	329
	330	for (i = 0; i < n; i++) {
	331	rational[0] = g_variant_new_uint64((*array)[i][0]);
	332	rational[1] = g_variant_new_uint64((*array)[i][1]);
	333
	334	/* FIXME: Valgrind reports a memory leak here. */
	335	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	336	}
	337
	338	return g_variant_builder_end(&gvb);
	339	}
	340
584560f1	341	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	342	const struct sr_channel_group *cg)
8ab929d6 SA	343	{
	344	int ret, cg_type;
	345	unsigned int i, j;
	346	char float_str[30];
	347	struct dev_context *devc;
329733d9	348	const struct scope_config *model;
8ab929d6 SA	349	struct scope_state *state;
	350	const char *tmp;
	351	uint64_t p, q;
	352	double tmp_d;
	353	gboolean update_sample_rate;
	354
	355	if (!sdi \|\| !(devc = sdi->priv))
	356	return SR_ERR_ARG;
	357
	358	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	359	return SR_ERR;
	360
	361	model = devc->model_config;
	362	state = devc->model_state;
	363	update_sample_rate = FALSE;
	364
	365	ret = SR_ERR_NA;
	366
	367	switch (key) {
	368	case SR_CONF_LIMIT_FRAMES:
	369	devc->frame_limit = g_variant_get_uint64(data);
	370	ret = SR_OK;
	371	break;
	372	case SR_CONF_TRIGGER_SOURCE:
	373	tmp = g_variant_get_string(data, NULL);
	374	for (i = 0; (*model->trigger_sources)[i]; i++) {
	375	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	376	continue;
	377	state->trigger_source = i;
	378	/* TODO: A and B trigger support possible? */
	379	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	380	break;
	381	}
	382	break;
	383	case SR_CONF_VDIV:
	384	if (cg_type == CG_NONE) {
	385	sr_err("No channel group specified.");
	386	return SR_ERR_CHANNEL_GROUP;
	387	}
	388
	389	g_variant_get(data, "(tt)", &p, &q);
	390
f3c60fb6 SA	391	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	392	if (p != dlm_vdivs[i][0] \|\|
	393	q != dlm_vdivs[i][1])
8ab929d6	394	continue;
a9308652	395	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	396	if (cg != devc->analog_groups[j - 1])
	397	continue;
	398	state->analog_states[j - 1].vdiv = i;
	399	g_ascii_formatd(float_str, sizeof(float_str),
	400	"%E", (float) p / q);
	401	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	402	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	403	return SR_ERR;
	404
	405	break;
	406	}
	407
	408	ret = SR_OK;
	409	break;
	410	}
	411	break;
	412	case SR_CONF_TIMEBASE:
	413	g_variant_get(data, "(tt)", &p, &q);
	414
f3c60fb6 SA	415	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	416	if (p != dlm_timebases[i][0] \|\|
	417	q != dlm_timebases[i][1])
8ab929d6 SA	418	continue;
	419	state->timebase = i;
	420	g_ascii_formatd(float_str, sizeof(float_str),
	421	"%E", (float) p / q);
	422	ret = dlm_timebase_set(sdi->conn, float_str);
	423	update_sample_rate = TRUE;
	424	break;
	425	}
	426	break;
	427	case SR_CONF_HORIZ_TRIGGERPOS:
	428	tmp_d = g_variant_get_double(data);
	429
	430	/* TODO: Check if the calculation makes sense for the DLM. */
	431	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	432	return SR_ERR;
	433
	434	state->horiz_triggerpos = tmp_d;
	435	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	436	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	437	dlm_timebases[state->timebase][1])
ac10a927	438	* model->num_xdivs;
8ab929d6 SA	439
	440	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	441	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	442	break;
	443	case SR_CONF_TRIGGER_SLOPE:
	444	tmp = g_variant_get_string(data, NULL);
	445
	446	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	447	return SR_ERR_ARG;
	448
	449	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	450	state->trigger_slope = (tmp[0] == 'r') ?
	451	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	452
	453	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	454	break;
	455	case SR_CONF_COUPLING:
	456	if (cg_type == CG_NONE) {
	457	sr_err("No channel group specified.");
	458	return SR_ERR_CHANNEL_GROUP;
	459	}
	460
	461	tmp = g_variant_get_string(data, NULL);
	462
	463	for (i = 0; (*model->coupling_options)[i]; i++) {
	464	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	465	continue;
a9308652	466	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	467	if (cg != devc->analog_groups[j - 1])
	468	continue;
	469	state->analog_states[j-1].coupling = i;
	470
	471	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	472	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	473	return SR_ERR;
	474	break;
	475	}
	476
	477	ret = SR_OK;
	478	break;
	479	}
	480	break;
	481	default:
	482	ret = SR_ERR_NA;
	483	break;
	484	}
	485
	486	if (ret == SR_OK)
	487	ret = sr_scpi_get_opc(sdi->conn);
	488
	489	if (ret == SR_OK && update_sample_rate)
	490	ret = dlm_sample_rate_query(sdi);
	491
	492	return ret;
	493	}
	494
c65a021c SA	495	static int config_channel_set(const struct sr_dev_inst *sdi,
	496	struct sr_channel *ch, unsigned int changes)
	497	{
a9308652	498	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	499	if (changes != SR_CHANNEL_SET_ENABLED)
	500	return SR_ERR_NA;
	501
	502	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	503	}
	504
584560f1	505	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	506	const struct sr_channel_group *cg)
8ab929d6	507	{
cf0280fa AJ	508	int cg_type = CG_NONE;
cf0280fa AJ	509	struct dev_context *devc = NULL;
329733d9	510	const struct scope_config *model = NULL;
8ab929d6	511
f3c60fb6 SA	512	/* SR_CONF_SCAN_OPTIONS is always valid, regardless of sdi or probe group. */
	513	if (key == SR_CONF_SCAN_OPTIONS) {
	514	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	515	dlm_scanopts, ARRAY_SIZE(dlm_scanopts), sizeof(uint32_t));
	516	return SR_OK;
	517	}
8ab929d6	518
f3c60fb6 SA	519	/* If sdi is NULL, nothing except SR_CONF_DEVICE_OPTIONS can be provided. */
	520	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	521	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	522	dlm_drvopts, ARRAY_SIZE(dlm_drvopts), sizeof(uint32_t));
	523	return SR_OK;
cf0280fa	524	}
8ab929d6	525
f3c60fb6 SA	526	if (!sdi)
	527	return SR_ERR_ARG;
	528
	529	devc = sdi->priv;
	530	model = devc->model_config;
	531
a9308652 UH	532	/*
	533	* If cg is NULL, only the SR_CONF_DEVICE_OPTIONS that are not
	534	* specific to a probe group must be returned.
	535	*/
f3c60fb6 SA	536	if (!cg) {
	537	switch (key) {
	538	case SR_CONF_DEVICE_OPTIONS:
	539	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	540	dlm_devopts, ARRAY_SIZE(dlm_devopts), sizeof(uint32_t));
	541	return SR_OK;
	542	case SR_CONF_TIMEBASE:
	543	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	544	return SR_OK;
	545	case SR_CONF_TRIGGER_SOURCE:
	546	if (!model)
	547	return SR_ERR_ARG;
	548	data = g_variant_new_strv(model->trigger_sources,
	549	g_strv_length((char *)model->trigger_sources));
	550	return SR_OK;
	551	case SR_CONF_TRIGGER_SLOPE:
	552	*data = g_variant_new_strv(dlm_trigger_slopes,
	553	g_strv_length((char **)dlm_trigger_slopes));
	554	return SR_OK;
	555	case SR_CONF_NUM_HDIV:
49f49cb5	556	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	557	return SR_OK;
	558	default:
	559	return SR_ERR_NA;
	560	}
	561	}
	562
	563	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	564	return SR_ERR;
	565
8ab929d6	566	switch (key) {
8ab929d6	567	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	568	if (cg_type == CG_ANALOG) {
584560f1	569	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f3c60fb6 SA	570	dlm_analog_devopts, ARRAY_SIZE(dlm_analog_devopts), sizeof(uint32_t));
	571	} else if (cg_type == CG_DIGITAL) {
	572	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	573	dlm_digital_devopts, ARRAY_SIZE(dlm_digital_devopts), sizeof(uint32_t));
8ab929d6	574	} else {
584560f1 BV	575	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	576	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	577	}
	578	break;
	579	case SR_CONF_COUPLING:
	580	if (cg_type == CG_NONE)
	581	return SR_ERR_CHANNEL_GROUP;
	582	data = g_variant_new_strv(model->coupling_options,
ac10a927	583	g_strv_length((char *)model->coupling_options));
8ab929d6	584	break;
8ab929d6 SA	585	case SR_CONF_VDIV:
	586	if (cg_type == CG_NONE)
	587	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	588	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	589	break;
	590	default:
	591	return SR_ERR_NA;
	592	}
	593
	594	return SR_OK;
	595	}
	596
	597	static int dlm_check_channels(GSList *channels)
	598	{
	599	GSList *l;
	600	struct sr_channel *ch;
	601	gboolean enabled_pod1, enabled_chan4;
	602
	603	enabled_pod1 = enabled_chan4 = FALSE;
	604
	605	/* Note: On the DLM2000, CH4 and Logic are shared. */
	606	/* TODO Handle non-DLM2000 models. */
	607	for (l = channels; l; l = l->next) {
	608	ch = l->data;
	609	switch (ch->type) {
	610	case SR_CHANNEL_ANALOG:
	611	if (ch->index == 3)
	612	enabled_chan4 = TRUE;
	613	break;
	614	case SR_CHANNEL_LOGIC:
	615	enabled_pod1 = TRUE;
	616	break;
	617	default:
	618	return SR_ERR;
	619	}
	620	}
	621
	622	if (enabled_pod1 && enabled_chan4)
	623	return SR_ERR;
	624
	625	return SR_OK;
	626	}
	627
8ab929d6 SA	628	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	629	{
	630	GSList *l;
	631	gboolean digital_added;
	632	struct sr_channel *ch;
	633	struct dev_context *devc;
	634	struct sr_scpi_dev_inst *scpi;
	635
	636	(void)cb_data;
	637
ac10a927 SA	638	if (sdi->status != SR_ST_ACTIVE)
ac10a927 SA	639	return SR_ERR_DEV_CLOSED;
8ab929d6 SA	640
	641	scpi = sdi->conn;
	642	devc = sdi->priv;
	643	digital_added = FALSE;
	644
	645	g_slist_free(devc->enabled_channels);
	646	devc->enabled_channels = NULL;
	647
	648	for (l = sdi->channels; l; l = l->next) {
	649	ch = l->data;
	650	if (!ch->enabled)
	651	continue;
	652	/* Only add a single digital channel. */
	653	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	654	devc->enabled_channels = g_slist_append(
ac10a927 SA	655	devc->enabled_channels, ch);
	656	if (ch->type == SR_CHANNEL_LOGIC)
	657	digital_added = TRUE;
8ab929d6 SA	658	}
	659	}
	660
	661	if (!devc->enabled_channels)
	662	return SR_ERR;
	663
	664	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	665	sr_err("Invalid channel configuration specified!");
	666	return SR_ERR_NA;
	667	}
	668
af3487ec SA	669	/* Request data for the first enabled channel. */
	670	devc->current_channel = devc->enabled_channels;
	671	dlm_channel_data_request(sdi);
	672
0028d5a1 SA	673	/* Call our callback when data comes in or after 5ms. */
0028d5a1 SA	674	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	675	dlm_data_receive, (void *)sdi);
	676
	677	return SR_OK;
	678	}
	679
	680	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	681	{
	682	struct dev_context *devc;
8ab929d6 SA	683	struct sr_datafeed_packet packet;
	684
	685	(void)cb_data;
	686
	687	packet.type = SR_DF_END;
	688	packet.payload = NULL;
	689	sr_session_send(sdi, &packet);
	690
	691	if (sdi->status != SR_ST_ACTIVE)
	692	return SR_ERR_DEV_CLOSED;
	693
	694	devc = sdi->priv;
	695
	696	devc->num_frames = 0;
	697	g_slist_free(devc->enabled_channels);
	698	devc->enabled_channels = NULL;
af3487ec SA	699
af3487ec SA	700	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	701
	702	return SR_OK;
	703	}
10763937 SA	704
	705	SR_PRIV struct sr_dev_driver yokogawa_dlm_driver_info = {
	706	.name = "yokogawa-dlm",
ac10a927	707	.longname = "Yokogawa DL/DLM",
10763937	708	.api_version = 1,
8ab929d6 SA	709	.init = init,
	710	.cleanup = cleanup,
	711	.scan = scan,
	712	.dev_list = dev_list,
	713	.dev_clear = dev_clear,
	714	.config_get = config_get,
	715	.config_set = config_set,
c65a021c	716	.config_channel_set = config_channel_set,
8ab929d6 SA	717	.config_list = config_list,
	718	.dev_open = dev_open,
	719	.dev_close = dev_close,
	720	.dev_acquisition_start = dev_acquisition_start,
	721	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	722	.context = NULL,
10763937	723	};