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

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012 Bert Vermeulen <bert@biot.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 <glib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#include "protocol.h"

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

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_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const uint64_t samplerates[] = {
	SR_HZ(1),
	SR_HZ(20),
	SR_HZ(1),
};

static const char *data_sources[] = {
	"Live",
	"Log-Hand",
	"Log-Trig",
	"Log-Auto",
	"Log-Export",
};

extern const struct agdmm_job agdmm_jobs_live[];
extern const struct agdmm_job agdmm_jobs_log[];
extern const struct agdmm_recv agdmm_recvs_u123x[];
extern const struct agdmm_recv agdmm_recvs_u124x[];
extern const struct agdmm_recv agdmm_recvs_u124xc[];
extern const struct agdmm_recv agdmm_recvs_u125x[];
extern const struct agdmm_recv agdmm_recvs_u128x[];

/* This works on all the Agilent U12xxA series, although the
 * U127xA can apparently also run at 19200/8n1. */
#define SERIALCOMM "9600/8n1"

static const struct agdmm_profile supported_agdmm[] = {
	{ AGILENT_U1231, "U1231A", 1, agdmm_jobs_live, NULL, agdmm_recvs_u123x },
	{ AGILENT_U1232, "U1232A", 1, agdmm_jobs_live, NULL, agdmm_recvs_u123x },
	{ AGILENT_U1233, "U1233A", 1, agdmm_jobs_live, NULL, agdmm_recvs_u123x },

	{ AGILENT_U1241, "U1241A", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	{ AGILENT_U1242, "U1242A", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	{ AGILENT_U1241, "U1241B", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	{ AGILENT_U1242, "U1242B", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },

	{ KEYSIGHT_U1241C, "U1241C", 2, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u124xc },
	{ KEYSIGHT_U1242C, "U1242C", 2, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u124xc },

	{ AGILENT_U1251, "U1251A", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	{ AGILENT_U1252, "U1252A", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	{ AGILENT_U1253, "U1253A", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	{ AGILENT_U1251, "U1251B", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	{ AGILENT_U1252, "U1252B", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	{ AGILENT_U1253, "U1253B", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },

	{ KEYSIGHT_U1281, "U1281A", 3, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u128x },
	{ KEYSIGHT_U1282, "U1282A", 3, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u128x },
	ALL_ZERO
};

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_serial_dev_inst *serial;
	GSList *l, *devices;
	int len, i;
	const char *conn, *serialcomm;
	char *buf, **tokens;

	devices = NULL;
	conn = serialcomm = NULL;
	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = g_variant_get_string(src->data, NULL);
			break;
		case SR_CONF_SERIALCOMM:
			serialcomm = g_variant_get_string(src->data, NULL);
			break;
		}
	}
	if (!conn)
		return NULL;
	if (!serialcomm)
		serialcomm = SERIALCOMM;

	serial = sr_serial_dev_inst_new(conn, serialcomm);

	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
		return NULL;

	serial_flush(serial);
	if (serial_write_blocking(serial, "*IDN?\r\n", 7, SERIAL_WRITE_TIMEOUT_MS) < 7) {
		sr_err("Unable to send identification string.");
		return NULL;
	}

	len = 128;
	buf = g_malloc(len);
	serial_readline(serial, &buf, &len, 250);
	if (!len)
		return NULL;

	tokens = g_strsplit(buf, ",", 4);
	if ((!strcmp("Agilent Technologies", tokens[0]) ||
	     !strcmp("Keysight Technologies", tokens[0]))
			&& tokens[1] && tokens[2] && tokens[3]) {
		for (i = 0; supported_agdmm[i].model; i++) {
			if (strcmp(supported_agdmm[i].modelname, tokens[1]))
				continue;
			sdi = g_malloc0(sizeof(struct sr_dev_inst));
			sdi->status = SR_ST_INACTIVE;
			sdi->vendor = g_strdup(tokens[0][0] == 'A' ? "Agilent" : "Keysight");
			sdi->model = g_strdup(tokens[1]);
			sdi->version = g_strdup(tokens[3]);
			devc = g_malloc0(sizeof(struct dev_context));
			sr_sw_limits_init(&devc->limits);
			devc->profile = &supported_agdmm[i];
			devc->data_source = DEFAULT_DATA_SOURCE;
			devc->cur_samplerate = 5;
			if (supported_agdmm[i].nb_channels > 1) {
				int temp_chan = supported_agdmm[i].nb_channels - 1;
				devc->cur_mq[temp_chan] = SR_MQ_TEMPERATURE;
				devc->cur_unit[temp_chan] = SR_UNIT_CELSIUS;
				devc->cur_digits[temp_chan] = 1;
				devc->cur_encoding[temp_chan] = 2;
			}
			sdi->inst_type = SR_INST_SERIAL;
			sdi->conn = serial;
			sdi->priv = devc;
			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
			if (supported_agdmm[i].nb_channels > 1)
				sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "P2");
			if (supported_agdmm[i].nb_channels > 2)
				sr_channel_new(sdi, 2, SR_CHANNEL_ANALOG, TRUE, "P3");
			devices = g_slist_append(devices, sdi);
			break;
		}
	}
	g_strfreev(tokens);
	g_free(buf);

	serial_close(serial);
	if (!devices)
		sr_serial_dev_inst_free(serial);

	return std_scan_complete(di, devices);
}

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;
	int ret;

	(void)cg;

	devc = sdi->priv;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(devc->cur_samplerate);
		break;
	case SR_CONF_LIMIT_SAMPLES:
	case SR_CONF_LIMIT_MSEC:
		ret = sr_sw_limits_config_get(&devc->limits, key, data);
		break;
	case SR_CONF_DATA_SOURCE:
		*data = g_variant_new_string(data_sources[devc->data_source]);
		break;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

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;
	uint64_t samplerate;
	const char *tmp_str;
	unsigned int i;
	int ret;

	(void)cg;

	devc = sdi->priv;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_SAMPLERATE:
		samplerate = g_variant_get_uint64(data);
		if (samplerate < samplerates[0] || samplerate > samplerates[1])
			ret = SR_ERR_ARG;
		else
			devc->cur_samplerate = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_SAMPLES:
	case SR_CONF_LIMIT_MSEC:
		ret = sr_sw_limits_config_set(&devc->limits, key, data);
		break;
	case SR_CONF_DATA_SOURCE: {
		tmp_str = g_variant_get_string(data, NULL);
		for (i = 0; i < ARRAY_SIZE(data_sources); i++)
			if (!strcmp(tmp_str, data_sources[i])) {
				devc->data_source = i;
				break;
			}
		if (i == ARRAY_SIZE(data_sources))
			return SR_ERR;
		break;
	}
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	GVariant *gvar;
	GVariantBuilder gvb;

	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (!sdi || cg)
		return SR_ERR_ARG;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
		break;
	case SR_CONF_SAMPLERATE:
		g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
		gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
				ARRAY_SIZE(samplerates), sizeof(uint64_t));
		g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
		*data = g_variant_builder_end(&gvb);
		break;
	case SR_CONF_DATA_SOURCE:
		*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc = sdi->priv;
	struct sr_serial_dev_inst *serial;

	devc->cur_channel = sr_next_enabled_channel(sdi, NULL);
	devc->cur_conf = sr_next_enabled_channel(sdi, NULL);
	devc->cur_sample = 1;
	devc->cur_mq[0] = -1;
	if (devc->profile->nb_channels > 2)
		devc->cur_mq[1] = -1;

	if (devc->data_source == DATA_SOURCE_LIVE) {
		devc->jobs = devc->profile->jobs_live;
	} else {
		devc->jobs = devc->profile->jobs_log;
		if (!devc->jobs) {
			sr_err("Log data source is not implemented for this model.");
			return SR_ERR_NA;
		}
		if (!((struct sr_channel *)sdi->channels->data)->enabled) {
			sr_err("Log data is only available for channel P1.");
			return SR_ERR_NA;
		}
	}

	sr_sw_limits_acquisition_start(&devc->limits);
	std_session_send_df_header(sdi);

	/* Poll every 10ms, or whenever some data comes in. */
	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 10,
			agdmm_receive_data, (void *)sdi);

	return SR_OK;
}

static struct sr_dev_driver agdmm_driver_info = {
	.name = "agilent-dmm",
	.longname = "Agilent U12xx series DMMs",
	.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 = std_serial_dev_open,
	.dev_close = std_serial_dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(agdmm_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
	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
	20	#include <config.h>
	21	#include <glib.h>
	22	#include <sys/types.h>
	23	#include <sys/stat.h>
	24	#include <fcntl.h>
	25	#include <string.h>
	26	#include <libsigrok/libsigrok.h>
	27	#include "libsigrok-internal.h"
	28	#include "protocol.h"
	29
	30	static const uint32_t scanopts[] = {
	31	SR_CONF_CONN,
	32	SR_CONF_SERIALCOMM,
	33	};
	34
	35	static const uint32_t drvopts[] = {
	36	SR_CONF_MULTIMETER,
	37	};
	38
	39	static const uint32_t devopts[] = {
	40	SR_CONF_CONTINUOUS,
	41	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	42	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
	43	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	44	SR_CONF_DATA_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	45	};
	46
	47	static const uint64_t samplerates[] = {
	48	SR_HZ(1),
	49	SR_HZ(20),
	50	SR_HZ(1),
	51	};
	52
	53	static const char *data_sources[] = {
	54	"Live",
	55	"Log-Hand",
	56	"Log-Trig",
	57	"Log-Auto",
	58	"Log-Export",
	59	};
	60
	61	extern const struct agdmm_job agdmm_jobs_live[];
	62	extern const struct agdmm_job agdmm_jobs_log[];
	63	extern const struct agdmm_recv agdmm_recvs_u123x[];
	64	extern const struct agdmm_recv agdmm_recvs_u124x[];
	65	extern const struct agdmm_recv agdmm_recvs_u124xc[];
	66	extern const struct agdmm_recv agdmm_recvs_u125x[];
	67	extern const struct agdmm_recv agdmm_recvs_u128x[];
	68
	69	/* This works on all the Agilent U12xxA series, although the
	70	* U127xA can apparently also run at 19200/8n1. */
	71	#define SERIALCOMM "9600/8n1"
	72
	73	static const struct agdmm_profile supported_agdmm[] = {
	74	{ AGILENT_U1231, "U1231A", 1, agdmm_jobs_live, NULL, agdmm_recvs_u123x },
	75	{ AGILENT_U1232, "U1232A", 1, agdmm_jobs_live, NULL, agdmm_recvs_u123x },
	76	{ AGILENT_U1233, "U1233A", 1, agdmm_jobs_live, NULL, agdmm_recvs_u123x },
	77
	78	{ AGILENT_U1241, "U1241A", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	79	{ AGILENT_U1242, "U1242A", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	80	{ AGILENT_U1241, "U1241B", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	81	{ AGILENT_U1242, "U1242B", 2, agdmm_jobs_live, NULL, agdmm_recvs_u124x },
	82
	83	{ KEYSIGHT_U1241C, "U1241C", 2, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u124xc },
	84	{ KEYSIGHT_U1242C, "U1242C", 2, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u124xc },
	85
	86	{ AGILENT_U1251, "U1251A", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	87	{ AGILENT_U1252, "U1252A", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	88	{ AGILENT_U1253, "U1253A", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	89	{ AGILENT_U1251, "U1251B", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	90	{ AGILENT_U1252, "U1252B", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	91	{ AGILENT_U1253, "U1253B", 3, agdmm_jobs_live, NULL, agdmm_recvs_u125x },
	92
	93	{ KEYSIGHT_U1281, "U1281A", 3, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u128x },
	94	{ KEYSIGHT_U1282, "U1282A", 3, agdmm_jobs_live, agdmm_jobs_log, agdmm_recvs_u128x },
	95	ALL_ZERO
	96	};
	97
	98	static GSList scan(struct sr_dev_driver di, GSList *options)
	99	{
	100	struct sr_dev_inst *sdi;
	101	struct dev_context *devc;
	102	struct sr_config *src;
	103	struct sr_serial_dev_inst *serial;
	104	GSList l, devices;
	105	int len, i;
	106	const char conn, serialcomm;
	107	char buf, *tokens;
	108
	109	devices = NULL;
	110	conn = serialcomm = NULL;
	111	for (l = options; l; l = l->next) {
	112	src = l->data;
	113	switch (src->key) {
	114	case SR_CONF_CONN:
	115	conn = g_variant_get_string(src->data, NULL);
	116	break;
	117	case SR_CONF_SERIALCOMM:
	118	serialcomm = g_variant_get_string(src->data, NULL);
	119	break;
	120	}
	121	}
	122	if (!conn)
	123	return NULL;
	124	if (!serialcomm)
	125	serialcomm = SERIALCOMM;
	126
	127	serial = sr_serial_dev_inst_new(conn, serialcomm);
	128
	129	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	130	return NULL;
	131
	132	serial_flush(serial);
	133	if (serial_write_blocking(serial, "*IDN?\r\n", 7, SERIAL_WRITE_TIMEOUT_MS) < 7) {
	134	sr_err("Unable to send identification string.");
	135	return NULL;
	136	}
	137
	138	len = 128;
	139	buf = g_malloc(len);
	140	serial_readline(serial, &buf, &len, 250);
	141	if (!len)
	142	return NULL;
	143
	144	tokens = g_strsplit(buf, ",", 4);
	145	if ((!strcmp("Agilent Technologies", tokens[0]) \|\|
	146	!strcmp("Keysight Technologies", tokens[0]))
	147	&& tokens[1] && tokens[2] && tokens[3]) {
	148	for (i = 0; supported_agdmm[i].model; i++) {
	149	if (strcmp(supported_agdmm[i].modelname, tokens[1]))
	150	continue;
	151	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	152	sdi->status = SR_ST_INACTIVE;
	153	sdi->vendor = g_strdup(tokens[0][0] == 'A' ? "Agilent" : "Keysight");
	154	sdi->model = g_strdup(tokens[1]);
	155	sdi->version = g_strdup(tokens[3]);
	156	devc = g_malloc0(sizeof(struct dev_context));
	157	sr_sw_limits_init(&devc->limits);
	158	devc->profile = &supported_agdmm[i];
	159	devc->data_source = DEFAULT_DATA_SOURCE;
	160	devc->cur_samplerate = 5;
	161	if (supported_agdmm[i].nb_channels > 1) {
	162	int temp_chan = supported_agdmm[i].nb_channels - 1;
	163	devc->cur_mq[temp_chan] = SR_MQ_TEMPERATURE;
	164	devc->cur_unit[temp_chan] = SR_UNIT_CELSIUS;
	165	devc->cur_digits[temp_chan] = 1;
	166	devc->cur_encoding[temp_chan] = 2;
	167	}
	168	sdi->inst_type = SR_INST_SERIAL;
	169	sdi->conn = serial;
	170	sdi->priv = devc;
	171	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	172	if (supported_agdmm[i].nb_channels > 1)
	173	sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "P2");
	174	if (supported_agdmm[i].nb_channels > 2)
	175	sr_channel_new(sdi, 2, SR_CHANNEL_ANALOG, TRUE, "P3");
	176	devices = g_slist_append(devices, sdi);
	177	break;
	178	}
	179	}
	180	g_strfreev(tokens);
	181	g_free(buf);
	182
	183	serial_close(serial);
	184	if (!devices)
	185	sr_serial_dev_inst_free(serial);
	186
	187	return std_scan_complete(di, devices);
	188	}
	189
	190	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	191	const struct sr_channel_group *cg)
	192	{
	193	struct dev_context *devc;
	194	int ret;
	195
	196	(void)cg;
	197
	198	devc = sdi->priv;
	199
	200	ret = SR_OK;
	201	switch (key) {
	202	case SR_CONF_SAMPLERATE:
	203	*data = g_variant_new_uint64(devc->cur_samplerate);
	204	break;
	205	case SR_CONF_LIMIT_SAMPLES:
	206	case SR_CONF_LIMIT_MSEC:
	207	ret = sr_sw_limits_config_get(&devc->limits, key, data);
	208	break;
	209	case SR_CONF_DATA_SOURCE:
	210	*data = g_variant_new_string(data_sources[devc->data_source]);
	211	break;
	212	default:
	213	return SR_ERR_NA;
	214	}
	215
	216	return ret;
	217	}
	218
	219	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	220	const struct sr_channel_group *cg)
	221	{
	222	struct dev_context *devc;
	223	uint64_t samplerate;
	224	const char *tmp_str;
	225	unsigned int i;
	226	int ret;
	227
	228	(void)cg;
	229
	230	devc = sdi->priv;
	231
	232	ret = SR_OK;
	233	switch (key) {
	234	case SR_CONF_SAMPLERATE:
	235	samplerate = g_variant_get_uint64(data);
	236	if (samplerate < samplerates[0] \|\| samplerate > samplerates[1])
	237	ret = SR_ERR_ARG;
	238	else
	239	devc->cur_samplerate = g_variant_get_uint64(data);
	240	break;
	241	case SR_CONF_LIMIT_SAMPLES:
	242	case SR_CONF_LIMIT_MSEC:
	243	ret = sr_sw_limits_config_set(&devc->limits, key, data);
	244	break;
	245	case SR_CONF_DATA_SOURCE: {
	246	tmp_str = g_variant_get_string(data, NULL);
	247	for (i = 0; i < ARRAY_SIZE(data_sources); i++)
	248	if (!strcmp(tmp_str, data_sources[i])) {
	249	devc->data_source = i;
	250	break;
	251	}
	252	if (i == ARRAY_SIZE(data_sources))
	253	return SR_ERR;
	254	break;
	255	}
	256	default:
	257	ret = SR_ERR_NA;
	258	}
	259
	260	return ret;
	261	}
	262
	263	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	264	const struct sr_channel_group *cg)
	265	{
	266	GVariant *gvar;
	267	GVariantBuilder gvb;
	268
	269	if (key == SR_CONF_SCAN_OPTIONS) {
	270	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	271	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	272	return SR_OK;
	273	}
	274
	275	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	276	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	277	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
	278	return SR_OK;
	279	}
	280
	281	if (!sdi \|\| cg)
	282	return SR_ERR_ARG;
	283
	284	switch (key) {
	285	case SR_CONF_DEVICE_OPTIONS:
	286	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	287	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	288	break;
	289	case SR_CONF_SAMPLERATE:
	290	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	291	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	292	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	293	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	294	*data = g_variant_builder_end(&gvb);
	295	break;
	296	case SR_CONF_DATA_SOURCE:
	297	*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
	298	break;
	299	default:
	300	return SR_ERR_NA;
	301	}
	302
	303	return SR_OK;
	304	}
	305
	306	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	307	{
	308	struct dev_context *devc = sdi->priv;
	309	struct sr_serial_dev_inst *serial;
	310
	311	devc->cur_channel = sr_next_enabled_channel(sdi, NULL);
	312	devc->cur_conf = sr_next_enabled_channel(sdi, NULL);
	313	devc->cur_sample = 1;
	314	devc->cur_mq[0] = -1;
	315	if (devc->profile->nb_channels > 2)
	316	devc->cur_mq[1] = -1;
	317
	318	if (devc->data_source == DATA_SOURCE_LIVE) {
	319	devc->jobs = devc->profile->jobs_live;
	320	} else {
	321	devc->jobs = devc->profile->jobs_log;
	322	if (!devc->jobs) {
	323	sr_err("Log data source is not implemented for this model.");
	324	return SR_ERR_NA;
	325	}
	326	if (!((struct sr_channel *)sdi->channels->data)->enabled) {
	327	sr_err("Log data is only available for channel P1.");
	328	return SR_ERR_NA;
	329	}
	330	}
	331
	332	sr_sw_limits_acquisition_start(&devc->limits);
	333	std_session_send_df_header(sdi);
	334
	335	/* Poll every 10ms, or whenever some data comes in. */
	336	serial = sdi->conn;
	337	serial_source_add(sdi->session, serial, G_IO_IN, 10,
	338	agdmm_receive_data, (void *)sdi);
	339
	340	return SR_OK;
	341	}
	342
	343	static struct sr_dev_driver agdmm_driver_info = {
	344	.name = "agilent-dmm",
	345	.longname = "Agilent U12xx series DMMs",
	346	.api_version = 1,
	347	.init = std_init,
	348	.cleanup = std_cleanup,
	349	.scan = scan,
	350	.dev_list = std_dev_list,
	351	.dev_clear = std_dev_clear,
	352	.config_get = config_get,
	353	.config_set = config_set,
	354	.config_list = config_list,
	355	.dev_open = std_serial_dev_open,
	356	.dev_close = std_serial_dev_close,
	357	.dev_acquisition_start = dev_acquisition_start,
	358	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	359	.context = NULL,
	360	};
	361	SR_REGISTER_DEV_DRIVER(agdmm_driver_info);