[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 scanopts[] = {
	SR_CONF_CONN,
};

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

static const uint32_t 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 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 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(struct dev_context *devc)
{
	dlm_scope_state_destroy(devc->model_state);
	g_free(devc->analog_groups);
	g_free(devc->digital_groups);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	if (sr_scpi_open(sdi->conn) != SR_OK)
		return SR_ERR;

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

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	return sr_scpi_close(sdi->conn);
}

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

	model = devc->model_config;

	if (!cg)
		return CG_NONE;

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

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

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

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

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

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

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

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

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

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

	return ret;
}

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

	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);

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

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

	return g_variant_builder_end(&gvb);
}

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

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

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

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

	ret = SR_ERR_NA;

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

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

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

				break;
			}

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

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

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

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

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

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

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

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

		tmp = g_variant_get_string(data, NULL);

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

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

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

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

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

	return ret;
}

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

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

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

	devc = (sdi) ? sdi->priv : NULL;
	model = (devc) ? devc->model_config : NULL;

	if (!cg) {
		switch (key) {
		case SR_CONF_SCAN_OPTIONS:
		case SR_CONF_DEVICE_OPTIONS:
			return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
		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,
				analog_devopts, ARRAY_SIZE(analog_devopts), sizeof(uint32_t));
		} else if (cg_type == CG_DIGITAL) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				digital_devopts, ARRAY_SIZE(digital_devopts), sizeof(uint32_t));
		} else {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				NULL, 0, sizeof(uint32_t));
		}
		break;
	case SR_CONF_COUPLING:
		if (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*data = g_variant_new_strv(*model->coupling_options,
				g_strv_length((char **)*model->coupling_options));
		break;
	case SR_CONF_VDIV:
		if (cg_type == CG_NONE)
			return SR_ERR_CHANNEL_GROUP;
		*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

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

	enabled_pod1 = enabled_chan4 = FALSE;

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

	if (enabled_pod1 && enabled_chan4)
		return SR_ERR;

	return SR_OK;
}

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

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

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

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

	if (!devc->enabled_channels)
		return SR_ERR;

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

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

	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
4b25cbff	31	static const uint32_t scanopts[] = {
f3c60fb6 SA	32	SR_CONF_CONN,
	33	};
	34
4b25cbff	35	static const uint32_t drvopts[] = {
cf0280fa AJ	36	SR_CONF_LOGIC_ANALYZER,
	37	SR_CONF_OSCILLOSCOPE,
	38	};
	39
4b25cbff	40	static const uint32_t devopts[] = {
f3c60fb6 SA	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	};
f3c60fb6 SA	49
4b25cbff	50	static const uint32_t 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	};
f3c60fb6 SA	55
4b25cbff	56	static const uint32_t digital_devopts[] = {
f3c60fb6 SA	57	};
f3c60fb6 SA	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
3553451f	124	static void clear_helper(struct dev_context *devc)
8ab929d6	125	{
8ab929d6	126	dlm_scope_state_destroy(devc->model_state);
8ab929d6 SA	127	g_free(devc->analog_groups);
8ab929d6 SA	128	g_free(devc->digital_groups);
8ab929d6 SA	129	}
8ab929d6 SA	130
4f840ce9	131	static int dev_clear(const struct sr_dev_driver *di)
8ab929d6	132	{
3553451f	133	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
8ab929d6 SA	134	}
	135
	136	static int dev_open(struct sr_dev_inst *sdi)
	137	{
6402c379	138	if (sr_scpi_open(sdi->conn) != SR_OK)
8ab929d6 SA	139	return SR_ERR;
	140
	141	if (dlm_scope_state_query(sdi) != SR_OK)
	142	return SR_ERR;
	143
8ab929d6 SA	144	return SR_OK;
	145	}
	146
	147	static int dev_close(struct sr_dev_inst *sdi)
	148	{
f1ba6b4b	149	return sr_scpi_close(sdi->conn);
8ab929d6 SA	150	}
8ab929d6 SA	151
8ab929d6 SA	152	/**
	153	* Check which category a given channel group belongs to.
	154	*
	155	* @param devc Our internal device context.
a9308652	156	* @param cg The channel group to check.
8ab929d6	157	*
a9308652 UH	158	* @retval CG_NONE cg is NULL
a9308652 UH	159	* @retval CG_ANALOG cg is an analog group
8ab929d6 SA	160	* @retval CG_DIGITAL cg is a digital group
	161	* @retval CG_INVALID cg is something else
	162	*/
	163	static int check_channel_group(struct dev_context *devc,
ac10a927	164	const struct sr_channel_group *cg)
8ab929d6 SA	165	{
8ab929d6 SA	166	unsigned int i;
329733d9	167	const struct scope_config *model;
8ab929d6 SA	168
	169	model = devc->model_config;
	170
	171	if (!cg)
	172	return CG_NONE;
	173
a9308652	174	for (i = 0; i < model->analog_channels; i++)
8ab929d6 SA	175	if (cg == devc->analog_groups[i])
	176	return CG_ANALOG;
	177
a9308652	178	for (i = 0; i < model->pods; i++)
8ab929d6 SA	179	if (cg == devc->digital_groups[i])
	180	return CG_DIGITAL;
	181
	182	sr_err("Invalid channel group specified.");
	183	return CG_INVALID;
	184	}
	185
584560f1	186	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	187	const struct sr_channel_group *cg)
8ab929d6 SA	188	{
	189	int ret, cg_type;
	190	unsigned int i;
	191	struct dev_context *devc;
329733d9	192	const struct scope_config *model;
8ab929d6 SA	193	struct scope_state *state;
8ab929d6 SA	194
709468ba	195	if (!sdi)
8ab929d6 SA	196	return SR_ERR_ARG;
8ab929d6 SA	197
709468ba UH	198	devc = sdi->priv;
709468ba UH	199
8ab929d6 SA	200	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	201	return SR_ERR;
	202
8ab929d6 SA	203	model = devc->model_config;
	204	state = devc->model_state;
	205
	206	switch (key) {
bf622e6d	207	case SR_CONF_NUM_HDIV:
8ab929d6 SA	208	*data = g_variant_new_int32(model->num_xdivs);
	209	ret = SR_OK;
	210	break;
	211	case SR_CONF_TIMEBASE:
	212	*data = g_variant_new("(tt)",
f3c60fb6 SA	213	dlm_timebases[state->timebase][0],
f3c60fb6 SA	214	dlm_timebases[state->timebase][1]);
8ab929d6 SA	215	ret = SR_OK;
	216	break;
	217	case SR_CONF_NUM_VDIV:
	218	if (cg_type == CG_NONE) {
	219	sr_err("No channel group specified.");
	220	return SR_ERR_CHANNEL_GROUP;
	221	} else if (cg_type == CG_ANALOG) {
	222	*data = g_variant_new_int32(model->num_ydivs);
	223	ret = SR_OK;
	224	break;
	225	} else {
	226	ret = SR_ERR_NA;
	227	}
	228	break;
	229	case SR_CONF_VDIV:
	230	ret = SR_ERR_NA;
	231	if (cg_type == CG_NONE) {
	232	sr_err("No channel group specified.");
	233	return SR_ERR_CHANNEL_GROUP;
	234	} else if (cg_type != CG_ANALOG)
	235	break;
	236
a9308652	237	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	238	if (cg != devc->analog_groups[i])
	239	continue;
	240	*data = g_variant_new("(tt)",
f3c60fb6 SA	241	dlm_vdivs[state->analog_states[i].vdiv][0],
f3c60fb6 SA	242	dlm_vdivs[state->analog_states[i].vdiv][1]);
8ab929d6 SA	243	ret = SR_OK;
	244	break;
	245	}
	246	break;
	247	case SR_CONF_TRIGGER_SOURCE:
	248	data = g_variant_new_string((model->trigger_sources)[state->trigger_source]);
	249	ret = SR_OK;
	250	break;
	251	case SR_CONF_TRIGGER_SLOPE:
f3c60fb6	252	*data = g_variant_new_string(dlm_trigger_slopes[state->trigger_slope]);
8ab929d6 SA	253	ret = SR_OK;
	254	break;
	255	case SR_CONF_HORIZ_TRIGGERPOS:
	256	*data = g_variant_new_double(state->horiz_triggerpos);
	257	ret = SR_OK;
	258	break;
	259	case SR_CONF_COUPLING:
	260	ret = SR_ERR_NA;
	261	if (cg_type == CG_NONE) {
	262	sr_err("No channel group specified.");
	263	return SR_ERR_CHANNEL_GROUP;
	264	} else if (cg_type != CG_ANALOG)
	265	break;
	266
a9308652	267	for (i = 0; i < model->analog_channels; i++) {
8ab929d6 SA	268	if (cg != devc->analog_groups[i])
	269	continue;
	270	data = g_variant_new_string((model->coupling_options)[state->analog_states[i].coupling]);
	271	ret = SR_OK;
	272	break;
	273	}
	274	break;
	275	case SR_CONF_SAMPLERATE:
	276	*data = g_variant_new_uint64(state->sample_rate);
	277	ret = SR_OK;
	278	break;
	279	default:
	280	ret = SR_ERR_NA;
	281	}
	282
	283	return ret;
	284	}
	285
	286	static GVariant build_tuples(const uint64_t (array)[][2], unsigned int n)
	287	{
	288	unsigned int i;
	289	GVariant *rational[2];
	290	GVariantBuilder gvb;
	291
	292	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	293
	294	for (i = 0; i < n; i++) {
	295	rational[0] = g_variant_new_uint64((*array)[i][0]);
	296	rational[1] = g_variant_new_uint64((*array)[i][1]);
	297
	298	/* FIXME: Valgrind reports a memory leak here. */
	299	g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
	300	}
	301
	302	return g_variant_builder_end(&gvb);
	303	}
	304
584560f1	305	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
ac10a927	306	const struct sr_channel_group *cg)
8ab929d6 SA	307	{
	308	int ret, cg_type;
	309	unsigned int i, j;
	310	char float_str[30];
	311	struct dev_context *devc;
329733d9	312	const struct scope_config *model;
8ab929d6 SA	313	struct scope_state *state;
	314	const char *tmp;
	315	uint64_t p, q;
	316	double tmp_d;
	317	gboolean update_sample_rate;
	318
	319	if (!sdi \|\| !(devc = sdi->priv))
	320	return SR_ERR_ARG;
	321
	322	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	323	return SR_ERR;
	324
	325	model = devc->model_config;
	326	state = devc->model_state;
	327	update_sample_rate = FALSE;
	328
	329	ret = SR_ERR_NA;
	330
	331	switch (key) {
	332	case SR_CONF_LIMIT_FRAMES:
	333	devc->frame_limit = g_variant_get_uint64(data);
	334	ret = SR_OK;
	335	break;
	336	case SR_CONF_TRIGGER_SOURCE:
	337	tmp = g_variant_get_string(data, NULL);
	338	for (i = 0; (*model->trigger_sources)[i]; i++) {
	339	if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
	340	continue;
	341	state->trigger_source = i;
	342	/* TODO: A and B trigger support possible? */
	343	ret = dlm_trigger_source_set(sdi->conn, (*model->trigger_sources)[i]);
	344	break;
	345	}
	346	break;
	347	case SR_CONF_VDIV:
	348	if (cg_type == CG_NONE) {
	349	sr_err("No channel group specified.");
	350	return SR_ERR_CHANNEL_GROUP;
	351	}
	352
	353	g_variant_get(data, "(tt)", &p, &q);
	354
f3c60fb6 SA	355	for (i = 0; i < ARRAY_SIZE(dlm_vdivs); i++) {
	356	if (p != dlm_vdivs[i][0] \|\|
	357	q != dlm_vdivs[i][1])
8ab929d6	358	continue;
a9308652	359	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	360	if (cg != devc->analog_groups[j - 1])
	361	continue;
	362	state->analog_states[j - 1].vdiv = i;
	363	g_ascii_formatd(float_str, sizeof(float_str),
	364	"%E", (float) p / q);
	365	if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK \|\|
ac10a927	366	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	367	return SR_ERR;
	368
	369	break;
	370	}
	371
	372	ret = SR_OK;
	373	break;
	374	}
	375	break;
	376	case SR_CONF_TIMEBASE:
	377	g_variant_get(data, "(tt)", &p, &q);
	378
f3c60fb6 SA	379	for (i = 0; i < ARRAY_SIZE(dlm_timebases); i++) {
	380	if (p != dlm_timebases[i][0] \|\|
	381	q != dlm_timebases[i][1])
8ab929d6 SA	382	continue;
	383	state->timebase = i;
	384	g_ascii_formatd(float_str, sizeof(float_str),
	385	"%E", (float) p / q);
	386	ret = dlm_timebase_set(sdi->conn, float_str);
	387	update_sample_rate = TRUE;
	388	break;
	389	}
	390	break;
	391	case SR_CONF_HORIZ_TRIGGERPOS:
	392	tmp_d = g_variant_get_double(data);
	393
	394	/* TODO: Check if the calculation makes sense for the DLM. */
	395	if (tmp_d < 0.0 \|\| tmp_d > 1.0)
	396	return SR_ERR;
	397
	398	state->horiz_triggerpos = tmp_d;
	399	tmp_d = -(tmp_d - 0.5) *
f3c60fb6 SA	400	((double) dlm_timebases[state->timebase][0] /
f3c60fb6 SA	401	dlm_timebases[state->timebase][1])
ac10a927	402	* model->num_xdivs;
8ab929d6 SA	403
	404	g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d);
	405	ret = dlm_horiz_trigger_pos_set(sdi->conn, float_str);
	406	break;
	407	case SR_CONF_TRIGGER_SLOPE:
	408	tmp = g_variant_get_string(data, NULL);
	409
	410	if (!tmp \|\| !(tmp[0] == 'f' \|\| tmp[0] == 'r'))
	411	return SR_ERR_ARG;
	412
	413	/* Note: See dlm_trigger_slopes[] in protocol.c. */
	414	state->trigger_slope = (tmp[0] == 'r') ?
	415	SLOPE_POSITIVE : SLOPE_NEGATIVE;
	416
	417	ret = dlm_trigger_slope_set(sdi->conn, state->trigger_slope);
	418	break;
	419	case SR_CONF_COUPLING:
	420	if (cg_type == CG_NONE) {
	421	sr_err("No channel group specified.");
	422	return SR_ERR_CHANNEL_GROUP;
	423	}
	424
	425	tmp = g_variant_get_string(data, NULL);
	426
	427	for (i = 0; (*model->coupling_options)[i]; i++) {
	428	if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
	429	continue;
a9308652	430	for (j = 1; j <= model->analog_channels; j++) {
8ab929d6 SA	431	if (cg != devc->analog_groups[j - 1])
	432	continue;
	433	state->analog_states[j-1].coupling = i;
	434
	435	if (dlm_analog_chan_coupl_set(sdi->conn, j, tmp) != SR_OK \|\|
ac10a927	436	sr_scpi_get_opc(sdi->conn) != SR_OK)
8ab929d6 SA	437	return SR_ERR;
	438	break;
	439	}
	440
	441	ret = SR_OK;
	442	break;
	443	}
	444	break;
	445	default:
	446	ret = SR_ERR_NA;
	447	break;
	448	}
	449
	450	if (ret == SR_OK)
	451	ret = sr_scpi_get_opc(sdi->conn);
	452
	453	if (ret == SR_OK && update_sample_rate)
	454	ret = dlm_sample_rate_query(sdi);
	455
	456	return ret;
	457	}
	458
c65a021c SA	459	static int config_channel_set(const struct sr_dev_inst *sdi,
	460	struct sr_channel *ch, unsigned int changes)
	461	{
a9308652	462	/* Currently we only handle SR_CHANNEL_SET_ENABLED. */
c65a021c SA	463	if (changes != SR_CHANNEL_SET_ENABLED)
	464	return SR_ERR_NA;
	465
	466	return dlm_channel_state_set(sdi, ch->index, ch->enabled);
	467	}
	468
584560f1	469	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
ac10a927	470	const struct sr_channel_group *cg)
8ab929d6	471	{
cf0280fa	472	int cg_type = CG_NONE;
e66d1892 UH	473	struct dev_context *devc;
e66d1892 UH	474	const struct scope_config *model;
f3c60fb6	475
e66d1892 UH	476	devc = (sdi) ? sdi->priv : NULL;
e66d1892 UH	477	model = (devc) ? devc->model_config : NULL;
f3c60fb6	478
f3c60fb6 SA	479	if (!cg) {
f3c60fb6 SA	480	switch (key) {
e66d1892	481	case SR_CONF_SCAN_OPTIONS:
f3c60fb6	482	case SR_CONF_DEVICE_OPTIONS:
4b25cbff	483	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
f3c60fb6 SA	484	case SR_CONF_TIMEBASE:
	485	*data = build_tuples(&dlm_timebases, ARRAY_SIZE(dlm_timebases));
	486	return SR_OK;
	487	case SR_CONF_TRIGGER_SOURCE:
	488	if (!model)
	489	return SR_ERR_ARG;
	490	data = g_variant_new_strv(model->trigger_sources,
	491	g_strv_length((char *)model->trigger_sources));
	492	return SR_OK;
	493	case SR_CONF_TRIGGER_SLOPE:
	494	*data = g_variant_new_strv(dlm_trigger_slopes,
	495	g_strv_length((char **)dlm_trigger_slopes));
	496	return SR_OK;
	497	case SR_CONF_NUM_HDIV:
49f49cb5	498	*data = g_variant_new_uint32(model->num_xdivs);
f3c60fb6 SA	499	return SR_OK;
	500	default:
	501	return SR_ERR_NA;
	502	}
	503	}
	504
	505	if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID)
	506	return SR_ERR;
	507
8ab929d6	508	switch (key) {
8ab929d6	509	case SR_CONF_DEVICE_OPTIONS:
f3c60fb6	510	if (cg_type == CG_ANALOG) {
584560f1	511	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
4b25cbff	512	analog_devopts, ARRAY_SIZE(analog_devopts), sizeof(uint32_t));
f3c60fb6 SA	513	} else if (cg_type == CG_DIGITAL) {
f3c60fb6 SA	514	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
4b25cbff	515	digital_devopts, ARRAY_SIZE(digital_devopts), sizeof(uint32_t));
8ab929d6	516	} else {
584560f1 BV	517	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	518	NULL, 0, sizeof(uint32_t));
8ab929d6 SA	519	}
	520	break;
	521	case SR_CONF_COUPLING:
	522	if (cg_type == CG_NONE)
	523	return SR_ERR_CHANNEL_GROUP;
	524	data = g_variant_new_strv(model->coupling_options,
ac10a927	525	g_strv_length((char *)model->coupling_options));
8ab929d6	526	break;
8ab929d6 SA	527	case SR_CONF_VDIV:
	528	if (cg_type == CG_NONE)
	529	return SR_ERR_CHANNEL_GROUP;
f3c60fb6	530	*data = build_tuples(&dlm_vdivs, ARRAY_SIZE(dlm_vdivs));
8ab929d6 SA	531	break;
	532	default:
	533	return SR_ERR_NA;
	534	}
	535
	536	return SR_OK;
	537	}
	538
	539	static int dlm_check_channels(GSList *channels)
	540	{
	541	GSList *l;
	542	struct sr_channel *ch;
	543	gboolean enabled_pod1, enabled_chan4;
	544
	545	enabled_pod1 = enabled_chan4 = FALSE;
	546
	547	/* Note: On the DLM2000, CH4 and Logic are shared. */
	548	/* TODO Handle non-DLM2000 models. */
	549	for (l = channels; l; l = l->next) {
	550	ch = l->data;
	551	switch (ch->type) {
	552	case SR_CHANNEL_ANALOG:
	553	if (ch->index == 3)
	554	enabled_chan4 = TRUE;
	555	break;
	556	case SR_CHANNEL_LOGIC:
	557	enabled_pod1 = TRUE;
	558	break;
	559	default:
	560	return SR_ERR;
	561	}
	562	}
	563
	564	if (enabled_pod1 && enabled_chan4)
	565	return SR_ERR;
	566
	567	return SR_OK;
	568	}
	569
695dc859	570	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8ab929d6 SA	571	{
	572	GSList *l;
	573	gboolean digital_added;
	574	struct sr_channel *ch;
	575	struct dev_context *devc;
	576	struct sr_scpi_dev_inst *scpi;
	577
8ab929d6 SA	578	scpi = sdi->conn;
	579	devc = sdi->priv;
	580	digital_added = FALSE;
	581
	582	g_slist_free(devc->enabled_channels);
	583	devc->enabled_channels = NULL;
	584
	585	for (l = sdi->channels; l; l = l->next) {
	586	ch = l->data;
	587	if (!ch->enabled)
	588	continue;
	589	/* Only add a single digital channel. */
	590	if (ch->type != SR_CHANNEL_LOGIC \|\| !digital_added) {
	591	devc->enabled_channels = g_slist_append(
ac10a927 SA	592	devc->enabled_channels, ch);
	593	if (ch->type == SR_CHANNEL_LOGIC)
	594	digital_added = TRUE;
8ab929d6 SA	595	}
	596	}
	597
	598	if (!devc->enabled_channels)
	599	return SR_ERR;
	600
	601	if (dlm_check_channels(devc->enabled_channels) != SR_OK) {
	602	sr_err("Invalid channel configuration specified!");
	603	return SR_ERR_NA;
	604	}
	605
af3487ec SA	606	/* Request data for the first enabled channel. */
	607	devc->current_channel = devc->enabled_channels;
	608	dlm_channel_data_request(sdi);
	609
0028d5a1	610	sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 5,
8ab929d6 SA	611	dlm_data_receive, (void *)sdi);
	612
	613	return SR_OK;
	614	}
	615
695dc859	616	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8ab929d6 SA	617	{
8ab929d6 SA	618	struct dev_context *devc;
8ab929d6	619
bee2b016	620	std_session_send_df_end(sdi);
8ab929d6	621
8ab929d6 SA	622	devc = sdi->priv;
	623
	624	devc->num_frames = 0;
	625	g_slist_free(devc->enabled_channels);
	626	devc->enabled_channels = NULL;
af3487ec SA	627
af3487ec SA	628	sr_scpi_source_remove(sdi->session, sdi->conn);
8ab929d6 SA	629
	630	return SR_OK;
	631	}
10763937	632
dd5c48a6	633	static struct sr_dev_driver yokogawa_dlm_driver_info = {
10763937	634	.name = "yokogawa-dlm",
ac10a927	635	.longname = "Yokogawa DL/DLM",
10763937	636	.api_version = 1,
c2fdcc25	637	.init = std_init,
700d6b64	638	.cleanup = std_cleanup,
8ab929d6	639	.scan = scan,
c01bf34c	640	.dev_list = std_dev_list,
8ab929d6 SA	641	.dev_clear = dev_clear,
	642	.config_get = config_get,
	643	.config_set = config_set,
c65a021c	644	.config_channel_set = config_channel_set,
8ab929d6 SA	645	.config_list = config_list,
	646	.dev_open = dev_open,
	647	.dev_close = dev_close,
	648	.dev_acquisition_start = dev_acquisition_start,
	649	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	650	.context = NULL,
10763937	651	};
dd5c48a6	652	SR_REGISTER_DEV_DRIVER(yokogawa_dlm_driver_info);