[libsigrok.git] / src / hardware / scpi-dmm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2018 Gerhard Sittig <gerhard.sittig@gmx.net>
 *
 * 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 <string.h>
#include "protocol.h"

static struct sr_dev_driver scpi_dmm_driver_info;

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

static const uint32_t drvopts[] = {
	SR_CONF_MULTIMETER,
};

static const uint32_t devopts[] = {
	SR_CONF_CONTINUOUS,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_MEASURED_QUANTITY | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const struct scpi_command cmdset_agilent[] = {
	{ DMM_CMD_SETUP_REMOTE, "\n", },
	{ DMM_CMD_SETUP_FUNC, "CONF:%s", },
	{ DMM_CMD_QUERY_FUNC, "CONF?", },
	{ DMM_CMD_START_ACQ, "MEAS", },
	{ DMM_CMD_STOP_ACQ, "ABORT", },
	{ DMM_CMD_QUERY_VALUE, "READ?", },
	{ DMM_CMD_QUERY_PREC, "CONF?", },
	ALL_ZERO,
};

static const struct mqopt_item mqopts_agilent_5digit[] = {
	{ SR_MQ_VOLTAGE, SR_MQFLAG_DC, "VOLT:DC", "VOLT ", NO_DFLT_PREC, },
	{ SR_MQ_VOLTAGE, SR_MQFLAG_AC, "VOLT:AC", "VOLT:AC ", NO_DFLT_PREC, },
	{ SR_MQ_CURRENT, SR_MQFLAG_DC, "CURR:DC", "CURR ", NO_DFLT_PREC, },
	{ SR_MQ_CURRENT, SR_MQFLAG_AC, "CURR:AC", "CURR:AC ", NO_DFLT_PREC, },
	{ SR_MQ_RESISTANCE, 0, "RES", "RES ", NO_DFLT_PREC, },
	{ SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, "FRES", "FRES ", NO_DFLT_PREC, },
	{ SR_MQ_CONTINUITY, 0, "CONT", "CONT", -1, },
	{ SR_MQ_CAPACITANCE, 0, "CAP", "CAP ", NO_DFLT_PREC, },
	{ SR_MQ_VOLTAGE, SR_MQFLAG_DC | SR_MQFLAG_DIODE, "DIOD", "DIOD", -4, },
	{ SR_MQ_TEMPERATURE, 0, "TEMP", "TEMP ", NO_DFLT_PREC, },
	{ SR_MQ_FREQUENCY, 0, "FREQ", "FREQ ", NO_DFLT_PREC, },
};

SR_PRIV const struct scpi_dmm_model models[] = {
	{
		"Agilent", "34405A",
		1, 5, cmdset_agilent, ARRAY_AND_SIZE(mqopts_agilent_5digit),
		scpi_dmm_get_meas_agilent,
	},
};

static const struct scpi_dmm_model *is_compatible(const char *vendor, const char *model)
{
	size_t i;
	const struct scpi_dmm_model *entry;

	for (i = 0; i < ARRAY_SIZE(models); i++) {
		entry = &models[i];
		if (!entry->vendor || !entry->model)
			continue;
		if (strcmp(vendor, entry->vendor) != 0)
			continue;
		if (strcmp(model, entry->model) != 0)
			continue;
		return entry;
	}

	return NULL;
}

static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
{
	struct sr_scpi_hw_info *hw_info;
	int ret;
	const char *vendor;
	const struct scpi_dmm_model *model;
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	size_t i;
	gchar *channel_name;

	ret = sr_scpi_get_hw_id(scpi, &hw_info);
	scpi_dmm_cmd_delay(scpi);
	if (ret != SR_OK) {
		sr_info("Could not get IDN response.");
		return NULL;
	}
	vendor = sr_vendor_alias(hw_info->manufacturer);
	model = is_compatible(vendor, hw_info->model);
	if (!model) {
		sr_scpi_hw_info_free(hw_info);
		return NULL;
	}

	sdi = g_malloc0(sizeof(*sdi));
	sdi->vendor = g_strdup(hw_info->manufacturer);
	sdi->model = g_strdup(hw_info->model);
	sdi->version = g_strdup(hw_info->firmware_version);
	sdi->serial_num = g_strdup(hw_info->serial_number);
	sdi->conn = scpi;
	sdi->driver = &scpi_dmm_driver_info;
	sdi->inst_type = SR_INST_SCPI;
	sr_scpi_hw_info_free(hw_info);

	devc = g_malloc0(sizeof(*devc));
	sdi->priv = devc;
	devc->num_channels = model->num_channels;
	devc->cmdset = model->cmdset;
	devc->model = model;

	for (i = 0; i < devc->num_channels; i++) {
		channel_name = g_strdup_printf("P%zu", i + 1);
		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, channel_name);
	}

	return sdi;
}

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

static int dev_open(struct sr_dev_inst *sdi)
{
	struct sr_scpi_dev_inst *scpi;
	int ret;

	scpi = sdi->conn;
	ret = sr_scpi_open(scpi);
	if (ret < 0) {
		sr_err("Failed to open SCPI device: %s.", sr_strerror(ret));
		return SR_ERR;
	}

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct sr_scpi_dev_inst *scpi;

	scpi = sdi->conn;
	if (!scpi)
		return SR_ERR_BUG;

	sr_dbg("DIAG: sdi->status %d.", sdi->status - SR_ST_NOT_FOUND);
	if (sdi->status <= SR_ST_INACTIVE)
		return SR_OK;

	return sr_scpi_close(scpi);
}

static int config_get(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	enum sr_mq mq;
	enum sr_mqflag mqflag;
	GVariant *arr[2];
	int ret;

	(void)cg;

	devc = sdi->priv;

	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
	case SR_CONF_LIMIT_MSEC:
		return sr_sw_limits_config_get(&devc->limits, key, data);
	case SR_CONF_MEASURED_QUANTITY:
		ret = scpi_dmm_get_mq(sdi, &mq, &mqflag, NULL);
		if (ret != SR_OK)
			return ret;
		arr[0] = g_variant_new_uint32(mq);
		arr[1] = g_variant_new_uint64(mqflag);
		*data = g_variant_new_tuple(arr, ARRAY_SIZE(arr));
		return SR_OK;
	default:
		return SR_ERR_NA;
	}
}

static int config_set(uint32_t key, GVariant *data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	enum sr_mq mq;
	enum sr_mqflag mqflag;
	GVariant *tuple_child;

	(void)cg;

	devc = sdi->priv;

	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
	case SR_CONF_LIMIT_MSEC:
		return sr_sw_limits_config_set(&devc->limits, key, data);
	case SR_CONF_MEASURED_QUANTITY:
		tuple_child = g_variant_get_child_value(data, 0);
		mq = g_variant_get_uint32(tuple_child);
		tuple_child = g_variant_get_child_value(data, 1);
		mqflag = g_variant_get_uint64(tuple_child);
		g_variant_unref(tuple_child);
		return scpi_dmm_set_mq(sdi, mq, mqflag);
	default:
		return SR_ERR_NA;
	}
}

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	GVariant *gvar, *arr[2];
	GVariantBuilder gvb;
	size_t i;

	(void)cg;

	devc = sdi ? sdi->priv : NULL;

	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_MEASURED_QUANTITY:
		/* TODO Use std_gvar_measured_quantities() when available. */
		if (!devc)
			return SR_ERR_ARG;
		g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
		for (i = 0; i < devc->model->mqopt_size; i++) {
			arr[0] = g_variant_new_uint32(devc->model->mqopts[i].mq);
			arr[1] = g_variant_new_uint64(devc->model->mqopts[i].mqflag);
			gvar = g_variant_new_tuple(arr, ARRAY_SIZE(arr));
			g_variant_builder_add_value(&gvb, gvar);
		}
		*data = g_variant_builder_end(&gvb);
		return SR_OK;
	default:
		(void)devc;
		return SR_ERR_NA;
	}
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct sr_scpi_dev_inst *scpi;
	struct dev_context *devc;
	int ret;
	const char *command;

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

	ret = scpi_dmm_get_mq(sdi, &devc->start_acq_mq.curr_mq,
		&devc->start_acq_mq.curr_mqflag, NULL);
	if (ret != SR_OK)
		return ret;

	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_START_ACQ);
	if (command && *command) {
		ret = sr_scpi_send(scpi, command);
		scpi_dmm_cmd_delay(scpi);
		if (ret != SR_OK)
			return ret;
	}

	sr_sw_limits_acquisition_start(&devc->limits);
	ret = std_session_send_df_header(sdi);
	if (ret != SR_OK)
		return ret;

	ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
		scpi_dmm_receive_data, (void *)sdi);
	if (ret != SR_OK)
		return ret;

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	struct sr_scpi_dev_inst *scpi;
	struct dev_context *devc;
	const char *command;

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

	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_STOP_ACQ);
	if (command && *command) {
		(void)sr_scpi_send(scpi, command);
		scpi_dmm_cmd_delay(scpi);
	}
	sr_scpi_source_remove(sdi->session, scpi);

	std_session_send_df_end(sdi);

	return SR_OK;
}

static struct sr_dev_driver scpi_dmm_driver_info = {
	.name = "scpi-dmm",
	.longname = "SCPI DMM",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = std_dev_clear,
	.config_get = config_get,
	.config_set = config_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(scpi_dmm_driver_info);
Commit	Line	Data
7a396ff5 GS	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2018 Gerhard Sittig <gerhard.sittig@gmx.net>
	5	*
	6	* This program is free software: you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation, either version 3 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
3cdad416	20	#include <string.h>
7a396ff5 GS	21	#include "protocol.h"
7a396ff5 GS	22
0617bb5a GS	23	static struct sr_dev_driver scpi_dmm_driver_info;
0617bb5a GS	24
3cdad416 GS	25	static const uint32_t scanopts[] = {
	26	SR_CONF_CONN,
	27	};
	28
	29	static const uint32_t drvopts[] = {
	30	SR_CONF_MULTIMETER,
	31	};
	32
	33	static const uint32_t devopts[] = {
	34	SR_CONF_CONTINUOUS,
	35	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	36	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
	37	SR_CONF_MEASURED_QUANTITY \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	38	};
	39
	40	static const struct scpi_command cmdset_agilent[] = {
	41	{ DMM_CMD_SETUP_REMOTE, "\n", },
	42	{ DMM_CMD_SETUP_FUNC, "CONF:%s", },
	43	{ DMM_CMD_QUERY_FUNC, "CONF?", },
	44	{ DMM_CMD_START_ACQ, "MEAS", },
	45	{ DMM_CMD_STOP_ACQ, "ABORT", },
	46	{ DMM_CMD_QUERY_VALUE, "READ?", },
	47	{ DMM_CMD_QUERY_PREC, "CONF?", },
	48	ALL_ZERO,
	49	};
	50
	51	static const struct mqopt_item mqopts_agilent_5digit[] = {
	52	{ SR_MQ_VOLTAGE, SR_MQFLAG_DC, "VOLT:DC", "VOLT ", NO_DFLT_PREC, },
	53	{ SR_MQ_VOLTAGE, SR_MQFLAG_AC, "VOLT:AC", "VOLT:AC ", NO_DFLT_PREC, },
	54	{ SR_MQ_CURRENT, SR_MQFLAG_DC, "CURR:DC", "CURR ", NO_DFLT_PREC, },
	55	{ SR_MQ_CURRENT, SR_MQFLAG_AC, "CURR:AC", "CURR:AC ", NO_DFLT_PREC, },
	56	{ SR_MQ_RESISTANCE, 0, "RES", "RES ", NO_DFLT_PREC, },
	57	{ SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, "FRES", "FRES ", NO_DFLT_PREC, },
	58	{ SR_MQ_CONTINUITY, 0, "CONT", "CONT", -1, },
	59	{ SR_MQ_CAPACITANCE, 0, "CAP", "CAP ", NO_DFLT_PREC, },
	60	{ SR_MQ_VOLTAGE, SR_MQFLAG_DC \| SR_MQFLAG_DIODE, "DIOD", "DIOD", -4, },
	61	{ SR_MQ_TEMPERATURE, 0, "TEMP", "TEMP ", NO_DFLT_PREC, },
	62	{ SR_MQ_FREQUENCY, 0, "FREQ", "FREQ ", NO_DFLT_PREC, },
	63	};
	64
	65	SR_PRIV const struct scpi_dmm_model models[] = {
	66	{
	67	"Agilent", "34405A",
	68	1, 5, cmdset_agilent, ARRAY_AND_SIZE(mqopts_agilent_5digit),
	69	scpi_dmm_get_meas_agilent,
	70	},
	71	};
	72
	73	static const struct scpi_dmm_model is_compatible(const char vendor, const char *model)
7a396ff5	74	{
3cdad416 GS	75	size_t i;
	76	const struct scpi_dmm_model *entry;
	77
	78	for (i = 0; i < ARRAY_SIZE(models); i++) {
	79	entry = &models[i];
	80	if (!entry->vendor \|\| !entry->model)
	81	continue;
	82	if (strcmp(vendor, entry->vendor) != 0)
	83	continue;
	84	if (strcmp(model, entry->model) != 0)
	85	continue;
	86	return entry;
	87	}
7a396ff5	88
3cdad416 GS	89	return NULL;
3cdad416 GS	90	}
7a396ff5	91
3cdad416 GS	92	static struct sr_dev_inst probe_device(struct sr_scpi_dev_inst scpi)
	93	{
	94	struct sr_scpi_hw_info *hw_info;
	95	int ret;
	96	const char *vendor;
	97	const struct scpi_dmm_model *model;
	98	struct sr_dev_inst *sdi;
	99	struct dev_context *devc;
	100	size_t i;
	101	gchar *channel_name;
	102
	103	ret = sr_scpi_get_hw_id(scpi, &hw_info);
	104	scpi_dmm_cmd_delay(scpi);
	105	if (ret != SR_OK) {
	106	sr_info("Could not get IDN response.");
	107	return NULL;
	108	}
	109	vendor = sr_vendor_alias(hw_info->manufacturer);
	110	model = is_compatible(vendor, hw_info->model);
	111	if (!model) {
	112	sr_scpi_hw_info_free(hw_info);
	113	return NULL;
	114	}
7a396ff5	115
3cdad416 GS	116	sdi = g_malloc0(sizeof(*sdi));
	117	sdi->vendor = g_strdup(hw_info->manufacturer);
	118	sdi->model = g_strdup(hw_info->model);
	119	sdi->version = g_strdup(hw_info->firmware_version);
	120	sdi->serial_num = g_strdup(hw_info->serial_number);
	121	sdi->conn = scpi;
	122	sdi->driver = &scpi_dmm_driver_info;
	123	sdi->inst_type = SR_INST_SCPI;
	124	sr_scpi_hw_info_free(hw_info);
	125
	126	devc = g_malloc0(sizeof(*devc));
	127	sdi->priv = devc;
	128	devc->num_channels = model->num_channels;
	129	devc->cmdset = model->cmdset;
	130	devc->model = model;
	131
	132	for (i = 0; i < devc->num_channels; i++) {
	133	channel_name = g_strdup_printf("P%zu", i + 1);
	134	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, channel_name);
	135	}
	136
	137	return sdi;
	138	}
7a396ff5	139
3cdad416 GS	140	static GSList scan(struct sr_dev_driver di, GSList *options)
	141	{
	142	return sr_scpi_scan(di->context, options, probe_device);
7a396ff5 GS	143	}
	144
	145	static int dev_open(struct sr_dev_inst *sdi)
	146	{
3cdad416 GS	147	struct sr_scpi_dev_inst *scpi;
3cdad416 GS	148	int ret;
7a396ff5	149
3cdad416 GS	150	scpi = sdi->conn;
	151	ret = sr_scpi_open(scpi);
	152	if (ret < 0) {
	153	sr_err("Failed to open SCPI device: %s.", sr_strerror(ret));
	154	return SR_ERR;
	155	}
7a396ff5 GS	156
	157	return SR_OK;
	158	}
	159
	160	static int dev_close(struct sr_dev_inst *sdi)
	161	{
3cdad416	162	struct sr_scpi_dev_inst *scpi;
7a396ff5	163
3cdad416 GS	164	scpi = sdi->conn;
	165	if (!scpi)
	166	return SR_ERR_BUG;
7a396ff5	167
3cdad416 GS	168	sr_dbg("DIAG: sdi->status %d.", sdi->status - SR_ST_NOT_FOUND);
	169	if (sdi->status <= SR_ST_INACTIVE)
	170	return SR_OK;
	171
	172	return sr_scpi_close(scpi);
7a396ff5 GS	173	}
	174
	175	static int config_get(uint32_t key, GVariant **data,
	176	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	177	{
3cdad416 GS	178	struct dev_context *devc;
	179	enum sr_mq mq;
	180	enum sr_mqflag mqflag;
	181	GVariant *arr[2];
7a396ff5 GS	182	int ret;
7a396ff5 GS	183
7a396ff5 GS	184	(void)cg;
7a396ff5 GS	185
3cdad416 GS	186	devc = sdi->priv;
3cdad416 GS	187
7a396ff5	188	switch (key) {
3cdad416 GS	189	case SR_CONF_LIMIT_SAMPLES:
	190	case SR_CONF_LIMIT_MSEC:
	191	return sr_sw_limits_config_get(&devc->limits, key, data);
	192	case SR_CONF_MEASURED_QUANTITY:
	193	ret = scpi_dmm_get_mq(sdi, &mq, &mqflag, NULL);
	194	if (ret != SR_OK)
	195	return ret;
	196	arr[0] = g_variant_new_uint32(mq);
	197	arr[1] = g_variant_new_uint64(mqflag);
	198	*data = g_variant_new_tuple(arr, ARRAY_SIZE(arr));
	199	return SR_OK;
7a396ff5 GS	200	default:
	201	return SR_ERR_NA;
	202	}
7a396ff5 GS	203	}
	204
	205	static int config_set(uint32_t key, GVariant *data,
	206	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	207	{
3cdad416 GS	208	struct dev_context *devc;
	209	enum sr_mq mq;
	210	enum sr_mqflag mqflag;
	211	GVariant *tuple_child;
7a396ff5	212
7a396ff5 GS	213	(void)cg;
7a396ff5 GS	214
3cdad416 GS	215	devc = sdi->priv;
3cdad416 GS	216
7a396ff5	217	switch (key) {
3cdad416 GS	218	case SR_CONF_LIMIT_SAMPLES:
	219	case SR_CONF_LIMIT_MSEC:
	220	return sr_sw_limits_config_set(&devc->limits, key, data);
	221	case SR_CONF_MEASURED_QUANTITY:
	222	tuple_child = g_variant_get_child_value(data, 0);
	223	mq = g_variant_get_uint32(tuple_child);
	224	tuple_child = g_variant_get_child_value(data, 1);
	225	mqflag = g_variant_get_uint64(tuple_child);
	226	g_variant_unref(tuple_child);
	227	return scpi_dmm_set_mq(sdi, mq, mqflag);
7a396ff5	228	default:
3cdad416	229	return SR_ERR_NA;
7a396ff5	230	}
7a396ff5 GS	231	}
	232
	233	static int config_list(uint32_t key, GVariant **data,
	234	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	235	{
3cdad416 GS	236	struct dev_context *devc;
	237	GVariant gvar, arr[2];
	238	GVariantBuilder gvb;
	239	size_t i;
7a396ff5	240
7a396ff5 GS	241	(void)cg;
7a396ff5 GS	242
3cdad416 GS	243	devc = sdi ? sdi->priv : NULL;
3cdad416 GS	244
7a396ff5	245	switch (key) {
3cdad416 GS	246	case SR_CONF_SCAN_OPTIONS:
	247	case SR_CONF_DEVICE_OPTIONS:
	248	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	249	case SR_CONF_MEASURED_QUANTITY:
	250	/* TODO Use std_gvar_measured_quantities() when available. */
	251	if (!devc)
	252	return SR_ERR_ARG;
	253	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	254	for (i = 0; i < devc->model->mqopt_size; i++) {
	255	arr[0] = g_variant_new_uint32(devc->model->mqopts[i].mq);
	256	arr[1] = g_variant_new_uint64(devc->model->mqopts[i].mqflag);
	257	gvar = g_variant_new_tuple(arr, ARRAY_SIZE(arr));
	258	g_variant_builder_add_value(&gvb, gvar);
	259	}
	260	*data = g_variant_builder_end(&gvb);
	261	return SR_OK;
7a396ff5	262	default:
3cdad416	263	(void)devc;
7a396ff5 GS	264	return SR_ERR_NA;
7a396ff5 GS	265	}
7a396ff5 GS	266	}
	267
	268	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	269	{
3cdad416 GS	270	struct sr_scpi_dev_inst *scpi;
	271	struct dev_context *devc;
	272	int ret;
	273	const char *command;
	274
	275	scpi = sdi->conn;
	276	devc = sdi->priv;
	277
	278	ret = scpi_dmm_get_mq(sdi, &devc->start_acq_mq.curr_mq,
	279	&devc->start_acq_mq.curr_mqflag, NULL);
	280	if (ret != SR_OK)
	281	return ret;
	282
	283	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_START_ACQ);
	284	if (command && *command) {
	285	ret = sr_scpi_send(scpi, command);
	286	scpi_dmm_cmd_delay(scpi);
	287	if (ret != SR_OK)
	288	return ret;
	289	}
7a396ff5	290
3cdad416 GS	291	sr_sw_limits_acquisition_start(&devc->limits);
	292	ret = std_session_send_df_header(sdi);
	293	if (ret != SR_OK)
	294	return ret;
	295
	296	ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
	297	scpi_dmm_receive_data, (void *)sdi);
	298	if (ret != SR_OK)
	299	return ret;
7a396ff5 GS	300
	301	return SR_OK;
	302	}
	303
	304	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	305	{
3cdad416 GS	306	struct sr_scpi_dev_inst *scpi;
	307	struct dev_context *devc;
	308	const char *command;
	309
	310	scpi = sdi->conn;
	311	devc = sdi->priv;
7a396ff5	312
3cdad416 GS	313	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_STOP_ACQ);
	314	if (command && *command) {
	315	(void)sr_scpi_send(scpi, command);
	316	scpi_dmm_cmd_delay(scpi);
	317	}
	318	sr_scpi_source_remove(sdi->session, scpi);
	319
	320	std_session_send_df_end(sdi);
7a396ff5 GS	321
	322	return SR_OK;
	323	}
	324
0617bb5a	325	static struct sr_dev_driver scpi_dmm_driver_info = {
7a396ff5 GS	326	.name = "scpi-dmm",
	327	.longname = "SCPI DMM",
	328	.api_version = 1,
	329	.init = std_init,
	330	.cleanup = std_cleanup,
	331	.scan = scan,
	332	.dev_list = std_dev_list,
	333	.dev_clear = std_dev_clear,
	334	.config_get = config_get,
	335	.config_set = config_set,
	336	.config_list = config_list,
	337	.dev_open = dev_open,
	338	.dev_close = dev_close,
	339	.dev_acquisition_start = dev_acquisition_start,
	340	.dev_acquisition_stop = dev_acquisition_stop,
	341	.context = NULL,
	342	};
7a396ff5	343	SR_REGISTER_DEV_DRIVER(scpi_dmm_driver_info);