[libsigrok.git] / src / hardware / pce-322a / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2016 George Hopkins <george-hopkins@null.net>
 * Copyright (C) 2016 Matthieu Guillaumin <matthieu@guillaum.in>
 *
 * 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 <config.h>
#include "protocol.h"

#define SERIALCOMM "115200/8n1"

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

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

static const uint32_t devopts[] = {
	SR_CONF_CONTINUOUS | SR_CONF_SET,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const char *weight_freq[] = {
	"A",
	"C",
};

static const char *weight_time[] = {
	"F",
	"S",
};

static const uint64_t meas_ranges[][2] = {
	{ 30, 130 },
	{ 30, 80 },
	{ 50, 100 },
	{ 80, 130 },
};

static const char *data_sources[] = {
	"Live",
	"Memory",
};

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_serial_dev_inst *serial;
	struct sr_dev_inst *sdi;
	GSList *l;
	const char *conn;

	conn = NULL;
	for (l = options; l; l = l->next) {
		src = l->data;
		if (src->key == SR_CONF_CONN)
			conn = g_variant_get_string(src->data, NULL);
	}
	if (!conn)
		return NULL;

	serial = sr_serial_dev_inst_new(conn, SERIALCOMM);

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

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("PCE");
	sdi->model = g_strdup("PCE-322A");
	devc = g_malloc0(sizeof(struct dev_context));
	devc->cur_mqflags = SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_FREQ_WEIGHT_A;
	sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
	sdi->inst_type = SR_INST_SERIAL;
	sdi->priv = devc;
	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");

	serial_close(serial);

	return std_scan_complete(di, g_slist_append(NULL, sdi));
}

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

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;
	GVariant *range[2];
	uint64_t low, high;
	uint64_t tmp;
	int ret;

	(void)cg;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;
	ret = SR_OK;
	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
		*data = g_variant_new_uint64(devc->limit_samples);
		break;
	case SR_CONF_SPL_WEIGHT_FREQ:
		tmp = pce_322a_weight_freq_get(sdi);
		if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
			*data = g_variant_new_string("A");
		else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
			*data = g_variant_new_string("C");
		else
			return SR_ERR;
		break;
	case SR_CONF_SPL_WEIGHT_TIME:
		tmp = pce_322a_weight_time_get(sdi);
		if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
			*data = g_variant_new_string("F");
		else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
			*data = g_variant_new_string("S");
		else
			return SR_ERR;
		break;
	case SR_CONF_SPL_MEASUREMENT_RANGE:
		if ((ret = pce_322a_meas_range_get(sdi, &low, &high)) == SR_OK) {
			range[0] = g_variant_new_uint64(low);
			range[1] = g_variant_new_uint64(high);
			*data = g_variant_new_tuple(range, 2);
		}
		break;
	case SR_CONF_POWER_OFF:
		*data = g_variant_new_boolean(FALSE);
		break;
	case SR_CONF_DATA_SOURCE:
		if (devc->cur_data_source == DATA_SOURCE_LIVE)
			*data = g_variant_new_string("Live");
		else
			*data = g_variant_new_string("Memory");
		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 tmp_u64, low, high;
	unsigned int i;
	int ret;
	const char *tmp_str;

	(void)cg;

	devc = sdi->priv;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
		tmp_u64 = g_variant_get_uint64(data);
		devc->limit_samples = tmp_u64;
		ret = SR_OK;
		break;
	case SR_CONF_SPL_WEIGHT_FREQ:
		tmp_str = g_variant_get_string(data, NULL);
		if (!strcmp(tmp_str, "A"))
			ret = pce_322a_weight_freq_set(sdi,
					SR_MQFLAG_SPL_FREQ_WEIGHT_A);
		else if (!strcmp(tmp_str, "C"))
			ret = pce_322a_weight_freq_set(sdi,
					SR_MQFLAG_SPL_FREQ_WEIGHT_C);
		else
			return SR_ERR_ARG;
		break;
	case SR_CONF_SPL_WEIGHT_TIME:
		tmp_str = g_variant_get_string(data, NULL);
		if (!strcmp(tmp_str, "F"))
			ret = pce_322a_weight_time_set(sdi,
					SR_MQFLAG_SPL_TIME_WEIGHT_F);
		else if (!strcmp(tmp_str, "S"))
			ret = pce_322a_weight_time_set(sdi,
					SR_MQFLAG_SPL_TIME_WEIGHT_S);
		else
			return SR_ERR_ARG;
		break;
	case SR_CONF_SPL_MEASUREMENT_RANGE:
		g_variant_get(data, "(tt)", &low, &high);
		ret = SR_ERR_ARG;
		for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
			if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
				ret = pce_322a_meas_range_set(sdi, low, high);
				break;
			}
		}
		break;
	case SR_CONF_POWER_OFF:
		if (g_variant_get_boolean(data))
			ret = pce_322a_power_off(sdi);
		break;
	case SR_CONF_DATA_SOURCE:
		tmp_str = g_variant_get_string(data, NULL);
		if (!strcmp(tmp_str, "Live"))
			devc->cur_data_source = DATA_SOURCE_LIVE;
		else if (!strcmp(tmp_str, "Memory"))
			devc->cur_data_source = DATA_SOURCE_MEMORY;
		else
			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 *tuple, *range[2];
	GVariantBuilder gvb;
	unsigned int i;
	int ret;

	(void)cg;

	ret = SR_OK;
	if (!sdi) {
		switch (key) {
		case SR_CONF_SCAN_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
			break;
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		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_SPL_WEIGHT_FREQ:
			*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
			break;
		case SR_CONF_SPL_WEIGHT_TIME:
			*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
			break;
		case SR_CONF_SPL_MEASUREMENT_RANGE:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
			for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
				range[0] = g_variant_new_uint64(meas_ranges[i][0]);
				range[1] = g_variant_new_uint64(meas_ranges[i][1]);
				tuple = g_variant_new_tuple(range, 2);
				g_variant_builder_add_value(&gvb, tuple);
			}
			*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 ret;
}

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

	ret = std_serial_dev_open(sdi);
	if (ret != SR_OK)
		return ret;

	return pce_322a_connect(sdi);
}

static int dev_close(struct sr_dev_inst *sdi)
{
	/*
	 * Ensure device gets properly disconnected even when there was
	 * no acquisition.
	 */
	pce_322a_disconnect(sdi);

	return std_serial_dev_close(sdi);
}

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

	devc = sdi->priv;
	devc->buffer_len = 0;
	devc->memory_state = MEM_STATE_REQUEST_MEMORY_USAGE;

	std_session_send_df_header(sdi);

	/* Poll every 150ms, or whenever some data comes in. */
	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 150,
			pce_322a_receive_data, (void *)sdi);

	return SR_OK;
}

static struct sr_dev_driver pce_322a_driver_info = {
	.name = "pce-322a",
	.longname = "PCE PCE-322A",
	.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_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(pce_322a_driver_info);
Commit	Line	Data
5a2c71cc GH	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2016 George Hopkins <george-hopkins@null.net>
ae87e02f	5	* Copyright (C) 2016 Matthieu Guillaumin <matthieu@guillaum.in>
5a2c71cc GH	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
	21	#include <string.h>
	22	#include <config.h>
	23	#include "protocol.h"
	24
	25	#define SERIALCOMM "115200/8n1"
	26
	27	static const uint32_t scanopts[] = {
	28	SR_CONF_CONN,
	29	};
	30
	31	static const uint32_t drvopts[] = {
	32	SR_CONF_SOUNDLEVELMETER,
	33	};
	34
	35	static const uint32_t devopts[] = {
	36	SR_CONF_CONTINUOUS \| SR_CONF_SET,
	37	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	38	SR_CONF_SPL_WEIGHT_FREQ \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	39	SR_CONF_SPL_WEIGHT_TIME \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	40	SR_CONF_SPL_MEASUREMENT_RANGE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	41	SR_CONF_POWER_OFF \| SR_CONF_GET \| SR_CONF_SET,
ae87e02f	42	SR_CONF_DATA_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
5a2c71cc GH	43	};
	44
	45	static const char *weight_freq[] = {
	46	"A",
	47	"C",
	48	};
	49
	50	static const char *weight_time[] = {
	51	"F",
	52	"S",
	53	};
	54
	55	static const uint64_t meas_ranges[][2] = {
	56	{ 30, 130 },
	57	{ 30, 80 },
	58	{ 50, 100 },
	59	{ 80, 130 },
	60	};
	61
ae87e02f MG	62	static const char *data_sources[] = {
	63	"Live",
	64	"Memory",
	65	};
	66
5a2c71cc GH	67	static GSList scan(struct sr_dev_driver di, GSList *options)
5a2c71cc GH	68	{
5a2c71cc GH	69	struct dev_context *devc;
	70	struct sr_config *src;
	71	struct sr_serial_dev_inst *serial;
	72	struct sr_dev_inst *sdi;
43376f33	73	GSList *l;
5a2c71cc GH	74	const char *conn;
	75
	76	conn = NULL;
	77	for (l = options; l; l = l->next) {
	78	src = l->data;
	79	if (src->key == SR_CONF_CONN)
	80	conn = g_variant_get_string(src->data, NULL);
	81	}
	82	if (!conn)
	83	return NULL;
	84
	85	serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
	86
	87	if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
	88	return NULL;
	89
5a2c71cc GH	90	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	91	sdi->status = SR_ST_INACTIVE;
	92	sdi->vendor = g_strdup("PCE");
	93	sdi->model = g_strdup("PCE-322A");
	94	devc = g_malloc0(sizeof(struct dev_context));
	95	devc->cur_mqflags = SR_MQFLAG_SPL_TIME_WEIGHT_F \| SR_MQFLAG_SPL_FREQ_WEIGHT_A;
	96	sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
	97	sdi->inst_type = SR_INST_SERIAL;
	98	sdi->priv = devc;
5a2c71cc	99	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
5a2c71cc GH	100
	101	serial_close(serial);
	102
43376f33	103	return std_scan_complete(di, g_slist_append(NULL, sdi));
5a2c71cc GH	104	}
	105
	106	static int dev_clear(const struct sr_dev_driver *di)
	107	{
6e43c3d5	108	return std_dev_clear_with_callback(di, NULL);
5a2c71cc GH	109	}
	110
	111	static int config_get(uint32_t key, GVariant **data,
	112	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	113	{
	114	struct dev_context *devc;
	115	GVariant *range[2];
	116	uint64_t low, high;
	117	uint64_t tmp;
	118	int ret;
	119
	120	(void)cg;
	121
	122	if (!sdi)
	123	return SR_ERR_ARG;
	124
	125	devc = sdi->priv;
	126	ret = SR_OK;
	127	switch (key) {
	128	case SR_CONF_LIMIT_SAMPLES:
	129	*data = g_variant_new_uint64(devc->limit_samples);
	130	break;
	131	case SR_CONF_SPL_WEIGHT_FREQ:
	132	tmp = pce_322a_weight_freq_get(sdi);
	133	if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
	134	*data = g_variant_new_string("A");
	135	else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
	136	*data = g_variant_new_string("C");
	137	else
	138	return SR_ERR;
	139	break;
	140	case SR_CONF_SPL_WEIGHT_TIME:
	141	tmp = pce_322a_weight_time_get(sdi);
	142	if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
	143	*data = g_variant_new_string("F");
	144	else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
	145	*data = g_variant_new_string("S");
	146	else
	147	return SR_ERR;
	148	break;
	149	case SR_CONF_SPL_MEASUREMENT_RANGE:
	150	if ((ret = pce_322a_meas_range_get(sdi, &low, &high)) == SR_OK) {
	151	range[0] = g_variant_new_uint64(low);
	152	range[1] = g_variant_new_uint64(high);
	153	*data = g_variant_new_tuple(range, 2);
	154	}
	155	break;
	156	case SR_CONF_POWER_OFF:
	157	*data = g_variant_new_boolean(FALSE);
	158	break;
ae87e02f MG	159	case SR_CONF_DATA_SOURCE:
	160	if (devc->cur_data_source == DATA_SOURCE_LIVE)
	161	*data = g_variant_new_string("Live");
	162	else
	163	*data = g_variant_new_string("Memory");
	164	break;
5a2c71cc GH	165	default:
	166	return SR_ERR_NA;
	167	}
	168
	169	return ret;
	170	}
	171
	172	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	173	const struct sr_channel_group *cg)
	174	{
	175	struct dev_context *devc;
	176	uint64_t tmp_u64, low, high;
	177	unsigned int i;
	178	int ret;
	179	const char *tmp_str;
	180
	181	(void)cg;
	182
5a2c71cc GH	183	devc = sdi->priv;
	184
	185	ret = SR_OK;
	186	switch (key) {
	187	case SR_CONF_LIMIT_SAMPLES:
	188	tmp_u64 = g_variant_get_uint64(data);
	189	devc->limit_samples = tmp_u64;
	190	ret = SR_OK;
	191	break;
	192	case SR_CONF_SPL_WEIGHT_FREQ:
	193	tmp_str = g_variant_get_string(data, NULL);
	194	if (!strcmp(tmp_str, "A"))
	195	ret = pce_322a_weight_freq_set(sdi,
	196	SR_MQFLAG_SPL_FREQ_WEIGHT_A);
	197	else if (!strcmp(tmp_str, "C"))
	198	ret = pce_322a_weight_freq_set(sdi,
	199	SR_MQFLAG_SPL_FREQ_WEIGHT_C);
	200	else
	201	return SR_ERR_ARG;
	202	break;
	203	case SR_CONF_SPL_WEIGHT_TIME:
	204	tmp_str = g_variant_get_string(data, NULL);
	205	if (!strcmp(tmp_str, "F"))
	206	ret = pce_322a_weight_time_set(sdi,
	207	SR_MQFLAG_SPL_TIME_WEIGHT_F);
	208	else if (!strcmp(tmp_str, "S"))
	209	ret = pce_322a_weight_time_set(sdi,
	210	SR_MQFLAG_SPL_TIME_WEIGHT_S);
	211	else
	212	return SR_ERR_ARG;
	213	break;
	214	case SR_CONF_SPL_MEASUREMENT_RANGE:
	215	g_variant_get(data, "(tt)", &low, &high);
	216	ret = SR_ERR_ARG;
	217	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	218	if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
	219	ret = pce_322a_meas_range_set(sdi, low, high);
	220	break;
	221	}
	222	}
	223	break;
	224	case SR_CONF_POWER_OFF:
	225	if (g_variant_get_boolean(data))
	226	ret = pce_322a_power_off(sdi);
	227	break;
ae87e02f MG	228	case SR_CONF_DATA_SOURCE:
	229	tmp_str = g_variant_get_string(data, NULL);
	230	if (!strcmp(tmp_str, "Live"))
	231	devc->cur_data_source = DATA_SOURCE_LIVE;
	232	else if (!strcmp(tmp_str, "Memory"))
	233	devc->cur_data_source = DATA_SOURCE_MEMORY;
	234	else
	235	return SR_ERR;
	236	break;
5a2c71cc GH	237	default:
	238	ret = SR_ERR_NA;
	239	}
	240
	241	return ret;
	242	}
	243
	244	static int config_list(uint32_t key, GVariant **data,
	245	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	246	{
	247	GVariant tuple, range[2];
	248	GVariantBuilder gvb;
	249	unsigned int i;
	250	int ret;
	251
	252	(void)cg;
	253
	254	ret = SR_OK;
	255	if (!sdi) {
	256	switch (key) {
	257	case SR_CONF_SCAN_OPTIONS:
	258	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	259	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	260	break;
	261	case SR_CONF_DEVICE_OPTIONS:
	262	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	263	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
	264	break;
	265	default:
	266	return SR_ERR_NA;
	267	}
	268	} else {
	269	switch (key) {
	270	case SR_CONF_DEVICE_OPTIONS:
	271	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	272	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	273	break;
	274	case SR_CONF_SPL_WEIGHT_FREQ:
	275	*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
	276	break;
	277	case SR_CONF_SPL_WEIGHT_TIME:
	278	*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
	279	break;
	280	case SR_CONF_SPL_MEASUREMENT_RANGE:
	281	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	282	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	283	range[0] = g_variant_new_uint64(meas_ranges[i][0]);
	284	range[1] = g_variant_new_uint64(meas_ranges[i][1]);
	285	tuple = g_variant_new_tuple(range, 2);
	286	g_variant_builder_add_value(&gvb, tuple);
	287	}
	288	*data = g_variant_builder_end(&gvb);
	289	break;
ae87e02f MG	290	case SR_CONF_DATA_SOURCE:
	291	*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
	292	break;
5a2c71cc GH	293	default:
	294	return SR_ERR_NA;
	295	}
	296	}
	297
	298	return ret;
	299	}
	300
	301	static int dev_open(struct sr_dev_inst *sdi)
	302	{
	303	int ret;
	304
	305	ret = std_serial_dev_open(sdi);
	306	if (ret != SR_OK)
	307	return ret;
	308
	309	return pce_322a_connect(sdi);
	310	}
	311
	312	static int dev_close(struct sr_dev_inst *sdi)
	313	{
	314	/*
	315	* Ensure device gets properly disconnected even when there was
	316	* no acquisition.
	317	*/
	318	pce_322a_disconnect(sdi);
	319
	320	return std_serial_dev_close(sdi);
	321	}
	322
	323	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	324	{
	325	struct dev_context *devc;
	326	struct sr_serial_dev_inst *serial;
	327
5a2c71cc GH	328	devc = sdi->priv;
5a2c71cc GH	329	devc->buffer_len = 0;
ae87e02f	330	devc->memory_state = MEM_STATE_REQUEST_MEMORY_USAGE;
5a2c71cc	331
bee2b016	332	std_session_send_df_header(sdi);
5a2c71cc GH	333
	334	/* Poll every 150ms, or whenever some data comes in. */
	335	serial = sdi->conn;
	336	serial_source_add(sdi->session, serial, G_IO_IN, 150,
	337	pce_322a_receive_data, (void *)sdi);
	338
	339	return SR_OK;
	340	}
	341
5a2c71cc GH	342	static struct sr_dev_driver pce_322a_driver_info = {
	343	.name = "pce-322a",
	344	.longname = "PCE PCE-322A",
	345	.api_version = 1,
	346	.init = std_init,
	347	.cleanup = std_cleanup,
	348	.scan = scan,
	349	.dev_list = std_dev_list,
	350	.dev_clear = dev_clear,
	351	.config_get = config_get,
	352	.config_set = config_set,
	353	.config_list = config_list,
	354	.dev_open = dev_open,
	355	.dev_close = dev_close,
	356	.dev_acquisition_start = dev_acquisition_start,
4b1a9d5d	357	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
5a2c71cc GH	358	.context = NULL,
	359	};
	360	SR_REGISTER_DEV_DRIVER(pce_322a_driver_info);