[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,
	SR_CONF_SERIALCOMM,
};

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

static const uint32_t devopts_generic[] = {
	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_34405a[] = {
	{ 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_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_34405a),
		scpi_dmm_get_meas_agilent,
		ARRAY_AND_SIZE(devopts_generic),
	},
};

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;

	scpi_dmm_cmd_delay(scpi);
	ret = sr_scpi_get_hw_id(scpi, &hw_info);
	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, 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:
		if (!devc)
			return STD_CONFIG_LIST(key, data, sdi, cg,
				scanopts, drvopts, devopts_generic);
		return std_opts_config_list(key, data, sdi, cg,
			ARRAY_AND_SIZE(scanopts), ARRAY_AND_SIZE(drvopts),
			devc->model->devopts, devc->model->devopts_size);
	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 struct mqopt_item *item;
	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, &item);
	if (ret != SR_OK)
		return ret;

	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_START_ACQ);
	if (command && *command) {
		scpi_dmm_cmd_delay(scpi);
		ret = sr_scpi_send(scpi, command);
		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) {
		scpi_dmm_cmd_delay(scpi);
		(void)sr_scpi_send(scpi, command);
	}
	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[] = {
3cdad416 GS	26	SR_CONF_CONN,
31e65c62	27	SR_CONF_SERIALCOMM,
3cdad416 GS	28	};
	29
	30	static const uint32_t drvopts[] = {
	31	SR_CONF_MULTIMETER,
	32	};
	33
1d2f9963	34	static const uint32_t devopts_generic[] = {
3cdad416 GS	35	SR_CONF_CONTINUOUS,
	36	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	37	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
	38	SR_CONF_MEASURED_QUANTITY \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	39	};
	40
	41	static const struct scpi_command cmdset_agilent[] = {
	42	{ DMM_CMD_SETUP_REMOTE, "\n", },
	43	{ DMM_CMD_SETUP_FUNC, "CONF:%s", },
	44	{ DMM_CMD_QUERY_FUNC, "CONF?", },
	45	{ DMM_CMD_START_ACQ, "MEAS", },
	46	{ DMM_CMD_STOP_ACQ, "ABORT", },
	47	{ DMM_CMD_QUERY_VALUE, "READ?", },
	48	{ DMM_CMD_QUERY_PREC, "CONF?", },
	49	ALL_ZERO,
	50	};
	51
64d03de1	52	static const struct mqopt_item mqopts_agilent_34405a[] = {
3cdad416 GS	53	{ SR_MQ_VOLTAGE, SR_MQFLAG_DC, "VOLT:DC", "VOLT ", NO_DFLT_PREC, },
	54	{ SR_MQ_VOLTAGE, SR_MQFLAG_AC, "VOLT:AC", "VOLT:AC ", NO_DFLT_PREC, },
	55	{ SR_MQ_CURRENT, SR_MQFLAG_DC, "CURR:DC", "CURR ", NO_DFLT_PREC, },
	56	{ SR_MQ_CURRENT, SR_MQFLAG_AC, "CURR:AC", "CURR:AC ", NO_DFLT_PREC, },
	57	{ SR_MQ_RESISTANCE, 0, "RES", "RES ", NO_DFLT_PREC, },
3cdad416 GS	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",
64d03de1	68	1, 5, cmdset_agilent, ARRAY_AND_SIZE(mqopts_agilent_34405a),
3cdad416	69	scpi_dmm_get_meas_agilent,
1d2f9963	70	ARRAY_AND_SIZE(devopts_generic),
3cdad416 GS	71	},
	72	};
	73
	74	static const struct scpi_dmm_model is_compatible(const char vendor, const char *model)
7a396ff5	75	{
3cdad416 GS	76	size_t i;
	77	const struct scpi_dmm_model *entry;
	78
	79	for (i = 0; i < ARRAY_SIZE(models); i++) {
	80	entry = &models[i];
	81	if (!entry->vendor \|\| !entry->model)
	82	continue;
	83	if (strcmp(vendor, entry->vendor) != 0)
	84	continue;
	85	if (strcmp(model, entry->model) != 0)
	86	continue;
	87	return entry;
	88	}
7a396ff5	89
3cdad416 GS	90	return NULL;
3cdad416 GS	91	}
7a396ff5	92
3cdad416 GS	93	static struct sr_dev_inst probe_device(struct sr_scpi_dev_inst scpi)
	94	{
	95	struct sr_scpi_hw_info *hw_info;
	96	int ret;
	97	const char *vendor;
	98	const struct scpi_dmm_model *model;
	99	struct sr_dev_inst *sdi;
	100	struct dev_context *devc;
	101	size_t i;
	102	gchar *channel_name;
	103
3cdad416	104	scpi_dmm_cmd_delay(scpi);
28877994	105	ret = sr_scpi_get_hw_id(scpi, &hw_info);
3cdad416 GS	106	if (ret != SR_OK) {
	107	sr_info("Could not get IDN response.");
	108	return NULL;
	109	}
	110	vendor = sr_vendor_alias(hw_info->manufacturer);
	111	model = is_compatible(vendor, hw_info->model);
	112	if (!model) {
	113	sr_scpi_hw_info_free(hw_info);
	114	return NULL;
	115	}
7a396ff5	116
3cdad416 GS	117	sdi = g_malloc0(sizeof(*sdi));
	118	sdi->vendor = g_strdup(hw_info->manufacturer);
	119	sdi->model = g_strdup(hw_info->model);
	120	sdi->version = g_strdup(hw_info->firmware_version);
	121	sdi->serial_num = g_strdup(hw_info->serial_number);
	122	sdi->conn = scpi;
	123	sdi->driver = &scpi_dmm_driver_info;
	124	sdi->inst_type = SR_INST_SCPI;
	125	sr_scpi_hw_info_free(hw_info);
	126
	127	devc = g_malloc0(sizeof(*devc));
	128	sdi->priv = devc;
	129	devc->num_channels = model->num_channels;
	130	devc->cmdset = model->cmdset;
	131	devc->model = model;
	132
	133	for (i = 0; i < devc->num_channels; i++) {
	134	channel_name = g_strdup_printf("P%zu", i + 1);
	135	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, channel_name);
	136	}
	137
	138	return sdi;
	139	}
7a396ff5	140
3cdad416 GS	141	static GSList scan(struct sr_dev_driver di, GSList *options)
	142	{
	143	return sr_scpi_scan(di->context, options, probe_device);
7a396ff5 GS	144	}
	145
	146	static int dev_open(struct sr_dev_inst *sdi)
	147	{
3cdad416 GS	148	struct sr_scpi_dev_inst *scpi;
3cdad416 GS	149	int ret;
7a396ff5	150
3cdad416 GS	151	scpi = sdi->conn;
	152	ret = sr_scpi_open(scpi);
	153	if (ret < 0) {
	154	sr_err("Failed to open SCPI device: %s.", sr_strerror(ret));
	155	return SR_ERR;
	156	}
7a396ff5 GS	157
	158	return SR_OK;
	159	}
	160
	161	static int dev_close(struct sr_dev_inst *sdi)
	162	{
3cdad416	163	struct sr_scpi_dev_inst *scpi;
7a396ff5	164
3cdad416 GS	165	scpi = sdi->conn;
	166	if (!scpi)
	167	return SR_ERR_BUG;
7a396ff5	168
3cdad416 GS	169	sr_dbg("DIAG: sdi->status %d.", sdi->status - SR_ST_NOT_FOUND);
	170	if (sdi->status <= SR_ST_INACTIVE)
	171	return SR_OK;
	172
	173	return sr_scpi_close(scpi);
7a396ff5 GS	174	}
	175
	176	static int config_get(uint32_t key, GVariant **data,
	177	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	178	{
3cdad416 GS	179	struct dev_context *devc;
	180	enum sr_mq mq;
	181	enum sr_mqflag mqflag;
	182	GVariant *arr[2];
7a396ff5 GS	183	int ret;
7a396ff5 GS	184
7a396ff5 GS	185	(void)cg;
7a396ff5 GS	186
3cdad416 GS	187	devc = sdi->priv;
3cdad416 GS	188
7a396ff5	189	switch (key) {
3cdad416 GS	190	case SR_CONF_LIMIT_SAMPLES:
	191	case SR_CONF_LIMIT_MSEC:
	192	return sr_sw_limits_config_get(&devc->limits, key, data);
	193	case SR_CONF_MEASURED_QUANTITY:
08f3b427	194	ret = scpi_dmm_get_mq(sdi, &mq, &mqflag, NULL, NULL);
3cdad416 GS	195	if (ret != SR_OK)
	196	return ret;
	197	arr[0] = g_variant_new_uint32(mq);
	198	arr[1] = g_variant_new_uint64(mqflag);
	199	*data = g_variant_new_tuple(arr, ARRAY_SIZE(arr));
	200	return SR_OK;
7a396ff5 GS	201	default:
	202	return SR_ERR_NA;
	203	}
7a396ff5 GS	204	}
	205
	206	static int config_set(uint32_t key, GVariant *data,
	207	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	208	{
3cdad416 GS	209	struct dev_context *devc;
	210	enum sr_mq mq;
	211	enum sr_mqflag mqflag;
	212	GVariant *tuple_child;
7a396ff5	213
7a396ff5 GS	214	(void)cg;
7a396ff5 GS	215
3cdad416 GS	216	devc = sdi->priv;
3cdad416 GS	217
7a396ff5	218	switch (key) {
3cdad416 GS	219	case SR_CONF_LIMIT_SAMPLES:
	220	case SR_CONF_LIMIT_MSEC:
	221	return sr_sw_limits_config_set(&devc->limits, key, data);
	222	case SR_CONF_MEASURED_QUANTITY:
	223	tuple_child = g_variant_get_child_value(data, 0);
	224	mq = g_variant_get_uint32(tuple_child);
	225	tuple_child = g_variant_get_child_value(data, 1);
	226	mqflag = g_variant_get_uint64(tuple_child);
	227	g_variant_unref(tuple_child);
	228	return scpi_dmm_set_mq(sdi, mq, mqflag);
7a396ff5	229	default:
3cdad416	230	return SR_ERR_NA;
7a396ff5	231	}
7a396ff5 GS	232	}
	233
	234	static int config_list(uint32_t key, GVariant **data,
	235	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	236	{
3cdad416 GS	237	struct dev_context *devc;
	238	GVariant gvar, arr[2];
	239	GVariantBuilder gvb;
	240	size_t i;
7a396ff5	241
7a396ff5 GS	242	(void)cg;
7a396ff5 GS	243
3cdad416 GS	244	devc = sdi ? sdi->priv : NULL;
3cdad416 GS	245
7a396ff5	246	switch (key) {
3cdad416 GS	247	case SR_CONF_SCAN_OPTIONS:
3cdad416 GS	248	case SR_CONF_DEVICE_OPTIONS:
1d2f9963 GS	249	if (!devc)
	250	return STD_CONFIG_LIST(key, data, sdi, cg,
	251	scanopts, drvopts, devopts_generic);
	252	return std_opts_config_list(key, data, sdi, cg,
	253	ARRAY_AND_SIZE(scanopts), ARRAY_AND_SIZE(drvopts),
	254	devc->model->devopts, devc->model->devopts_size);
3cdad416 GS	255	case SR_CONF_MEASURED_QUANTITY:
	256	/* TODO Use std_gvar_measured_quantities() when available. */
	257	if (!devc)
	258	return SR_ERR_ARG;
	259	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	260	for (i = 0; i < devc->model->mqopt_size; i++) {
	261	arr[0] = g_variant_new_uint32(devc->model->mqopts[i].mq);
	262	arr[1] = g_variant_new_uint64(devc->model->mqopts[i].mqflag);
	263	gvar = g_variant_new_tuple(arr, ARRAY_SIZE(arr));
	264	g_variant_builder_add_value(&gvb, gvar);
	265	}
	266	*data = g_variant_builder_end(&gvb);
	267	return SR_OK;
7a396ff5	268	default:
3cdad416	269	(void)devc;
7a396ff5 GS	270	return SR_ERR_NA;
7a396ff5 GS	271	}
7a396ff5 GS	272	}
	273
	274	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	275	{
3cdad416 GS	276	struct sr_scpi_dev_inst *scpi;
	277	struct dev_context *devc;
	278	int ret;
08f3b427	279	const struct mqopt_item *item;
3cdad416 GS	280	const char *command;
	281
	282	scpi = sdi->conn;
	283	devc = sdi->priv;
	284
	285	ret = scpi_dmm_get_mq(sdi, &devc->start_acq_mq.curr_mq,
08f3b427	286	&devc->start_acq_mq.curr_mqflag, NULL, &item);
3cdad416 GS	287	if (ret != SR_OK)
	288	return ret;
	289
	290	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_START_ACQ);
	291	if (command && *command) {
3cdad416	292	scpi_dmm_cmd_delay(scpi);
28877994	293	ret = sr_scpi_send(scpi, command);
3cdad416 GS	294	if (ret != SR_OK)
	295	return ret;
	296	}
7a396ff5	297
3cdad416 GS	298	sr_sw_limits_acquisition_start(&devc->limits);
	299	ret = std_session_send_df_header(sdi);
	300	if (ret != SR_OK)
	301	return ret;
	302
	303	ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
	304	scpi_dmm_receive_data, (void *)sdi);
	305	if (ret != SR_OK)
	306	return ret;
7a396ff5 GS	307
	308	return SR_OK;
	309	}
	310
	311	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	312	{
3cdad416 GS	313	struct sr_scpi_dev_inst *scpi;
	314	struct dev_context *devc;
	315	const char *command;
	316
	317	scpi = sdi->conn;
	318	devc = sdi->priv;
7a396ff5	319
3cdad416 GS	320	command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_STOP_ACQ);
3cdad416 GS	321	if (command && *command) {
3cdad416	322	scpi_dmm_cmd_delay(scpi);
28877994	323	(void)sr_scpi_send(scpi, command);
3cdad416 GS	324	}
	325	sr_scpi_source_remove(sdi->session, scpi);
	326
	327	std_session_send_df_end(sdi);
7a396ff5 GS	328
	329	return SR_OK;
	330	}
	331
0617bb5a	332	static struct sr_dev_driver scpi_dmm_driver_info = {
7a396ff5 GS	333	.name = "scpi-dmm",
	334	.longname = "SCPI DMM",
	335	.api_version = 1,
	336	.init = std_init,
	337	.cleanup = std_cleanup,
	338	.scan = scan,
	339	.dev_list = std_dev_list,
	340	.dev_clear = std_dev_clear,
	341	.config_get = config_get,
	342	.config_set = config_set,
	343	.config_list = config_list,
	344	.dev_open = dev_open,
	345	.dev_close = dev_close,
	346	.dev_acquisition_start = dev_acquisition_start,
	347	.dev_acquisition_stop = dev_acquisition_stop,
	348	.context = NULL,
	349	};
7a396ff5	350	SR_REGISTER_DEV_DRIVER(scpi_dmm_driver_info);