[libsigrok.git] / src / hardware / cem-dt-885x / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 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 <string.h>
#include "protocol.h"

#define SERIALCOMM "9600/8n1"

/* 23ms is the longest interval between tokens. */
#define MAX_SCAN_TIME_US (25 * 1000)

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_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_DATALOG | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_HOLD_MAX | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_HOLD_MIN | SR_CONF_GET | SR_CONF_SET,
	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, *devices;
	gint64 start;
	const char *conn;
	unsigned char c;

	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;

	devices = NULL;
	start = g_get_monotonic_time();
	while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
		if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
			/* Found one. */
			sdi = g_malloc0(sizeof(struct sr_dev_inst));
			sdi->status = SR_ST_INACTIVE;
			sdi->vendor = g_strdup("CEM");
			sdi->model = g_strdup("DT-885x");
			devc = g_malloc0(sizeof(struct dev_context));
			devc->cur_mqflags = 0;
			devc->recording = -1;
			devc->cur_meas_range = 0;
			devc->cur_data_source = DATA_SOURCE_LIVE;
			devc->enable_data_source_memory = FALSE;
			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");
			devices = g_slist_append(devices, sdi);
			break;
		}
		/* It takes about 1ms for a byte to come in. */
		g_usleep(1000);
	}

	serial_close(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;
	GVariant *range[2];
	uint64_t low, high;
	int tmp, 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_DATALOG:
		if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
			*data = g_variant_new_boolean(tmp);
		break;
	case SR_CONF_SPL_WEIGHT_FREQ:
		tmp = cem_dt_885x_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 = cem_dt_885x_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_HOLD_MAX:
		if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
			*data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
		break;
	case SR_CONF_HOLD_MIN:
		if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
			*data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
		break;
	case SR_CONF_SPL_MEASUREMENT_RANGE:
		if ((ret = cem_dt_885x_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 tmp, 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_DATALOG:
		ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
		break;
	case SR_CONF_SPL_WEIGHT_FREQ:
		tmp_str = g_variant_get_string(data, NULL);
		if (!strcmp(tmp_str, "A"))
			ret = cem_dt_885x_weight_freq_set(sdi,
					SR_MQFLAG_SPL_FREQ_WEIGHT_A);
		else if (!strcmp(tmp_str, "C"))
			ret = cem_dt_885x_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 = cem_dt_885x_weight_time_set(sdi,
					SR_MQFLAG_SPL_TIME_WEIGHT_F);
		else if (!strcmp(tmp_str, "S"))
			ret = cem_dt_885x_weight_time_set(sdi,
					SR_MQFLAG_SPL_TIME_WEIGHT_S);
		else
			return SR_ERR_ARG;
		break;
	case SR_CONF_HOLD_MAX:
		tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
		ret = cem_dt_885x_holdmode_set(sdi, tmp);
		break;
	case SR_CONF_HOLD_MIN:
		tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
		ret = cem_dt_885x_holdmode_set(sdi, tmp);
		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 = cem_dt_885x_meas_range_set(sdi, low, high);
				break;
			}
		}
		break;
	case SR_CONF_POWER_OFF:
		if (g_variant_get_boolean(data))
			ret = cem_dt_885x_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;
		devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
		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;

	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_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 SR_OK;
}

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->state = ST_INIT;
	devc->num_samples = 0;
	devc->buf_len = 0;

	std_session_send_df_header(sdi);

	/* Poll every 100ms, or whenever some data comes in. */
	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 150,
			cem_dt_885x_receive_data, (void *)sdi);

	return SR_OK;
}

static struct sr_dev_driver cem_dt_885x_driver_info = {
	.name = "cem-dt-885x",
	.longname = "CEM DT-885x",
	.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(cem_dt_885x_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 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 <string.h>
	22	#include "protocol.h"
	23
	24	#define SERIALCOMM "9600/8n1"
	25
	26	/* 23ms is the longest interval between tokens. */
	27	#define MAX_SCAN_TIME_US (25 * 1000)
	28
	29	static const uint32_t scanopts[] = {
	30	SR_CONF_CONN,
	31	};
	32
	33	static const uint32_t drvopts[] = {
	34	SR_CONF_SOUNDLEVELMETER,
	35	};
	36
	37	static const uint32_t devopts[] = {
	38	SR_CONF_CONTINUOUS,
	39	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	40	SR_CONF_SPL_WEIGHT_FREQ \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	41	SR_CONF_SPL_WEIGHT_TIME \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	42	SR_CONF_SPL_MEASUREMENT_RANGE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	43	SR_CONF_DATALOG \| SR_CONF_GET \| SR_CONF_SET,
	44	SR_CONF_HOLD_MAX \| SR_CONF_GET \| SR_CONF_SET,
	45	SR_CONF_HOLD_MIN \| SR_CONF_GET \| SR_CONF_SET,
	46	SR_CONF_POWER_OFF \| SR_CONF_GET \| SR_CONF_SET,
	47	SR_CONF_DATA_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	48	};
	49
	50	static const char *weight_freq[] = {
	51	"A",
	52	"C",
	53	};
	54
	55	static const char *weight_time[] = {
	56	"F",
	57	"S",
	58	};
	59
	60	static const uint64_t meas_ranges[][2] = {
	61	{ 30, 130 },
	62	{ 30, 80 },
	63	{ 50, 100 },
	64	{ 80, 130 },
	65	};
	66
	67	static const char *data_sources[] = {
	68	"Live",
	69	"Memory",
	70	};
	71
	72	static GSList scan(struct sr_dev_driver di, GSList *options)
	73	{
	74	struct dev_context *devc;
	75	struct sr_config *src;
	76	struct sr_serial_dev_inst *serial;
	77	struct sr_dev_inst *sdi;
	78	GSList l, devices;
	79	gint64 start;
	80	const char *conn;
	81	unsigned char c;
	82
	83	conn = NULL;
	84	for (l = options; l; l = l->next) {
	85	src = l->data;
	86	if (src->key == SR_CONF_CONN)
	87	conn = g_variant_get_string(src->data, NULL);
	88	}
	89	if (!conn)
	90	return NULL;
	91
	92	serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
	93
	94	if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
	95	return NULL;
	96
	97	devices = NULL;
	98	start = g_get_monotonic_time();
	99	while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
	100	if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
	101	/* Found one. */
	102	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	103	sdi->status = SR_ST_INACTIVE;
	104	sdi->vendor = g_strdup("CEM");
	105	sdi->model = g_strdup("DT-885x");
	106	devc = g_malloc0(sizeof(struct dev_context));
	107	devc->cur_mqflags = 0;
	108	devc->recording = -1;
	109	devc->cur_meas_range = 0;
	110	devc->cur_data_source = DATA_SOURCE_LIVE;
	111	devc->enable_data_source_memory = FALSE;
	112	sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
	113	sdi->inst_type = SR_INST_SERIAL;
	114	sdi->priv = devc;
	115	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
	116	devices = g_slist_append(devices, sdi);
	117	break;
	118	}
	119	/* It takes about 1ms for a byte to come in. */
	120	g_usleep(1000);
	121	}
	122
	123	serial_close(serial);
	124
	125	return std_scan_complete(di, devices);
	126	}
	127
	128	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	129	const struct sr_channel_group *cg)
	130	{
	131	struct dev_context *devc;
	132	GVariant *range[2];
	133	uint64_t low, high;
	134	int tmp, ret;
	135
	136	(void)cg;
	137
	138	if (!sdi)
	139	return SR_ERR_ARG;
	140
	141	devc = sdi->priv;
	142	ret = SR_OK;
	143	switch (key) {
	144	case SR_CONF_LIMIT_SAMPLES:
	145	*data = g_variant_new_uint64(devc->limit_samples);
	146	break;
	147	case SR_CONF_DATALOG:
	148	if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
	149	*data = g_variant_new_boolean(tmp);
	150	break;
	151	case SR_CONF_SPL_WEIGHT_FREQ:
	152	tmp = cem_dt_885x_weight_freq_get(sdi);
	153	if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
	154	*data = g_variant_new_string("A");
	155	else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
	156	*data = g_variant_new_string("C");
	157	else
	158	return SR_ERR;
	159	break;
	160	case SR_CONF_SPL_WEIGHT_TIME:
	161	tmp = cem_dt_885x_weight_time_get(sdi);
	162	if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
	163	*data = g_variant_new_string("F");
	164	else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
	165	*data = g_variant_new_string("S");
	166	else
	167	return SR_ERR;
	168	break;
	169	case SR_CONF_HOLD_MAX:
	170	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	171	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
	172	break;
	173	case SR_CONF_HOLD_MIN:
	174	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	175	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
	176	break;
	177	case SR_CONF_SPL_MEASUREMENT_RANGE:
	178	if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
	179	range[0] = g_variant_new_uint64(low);
	180	range[1] = g_variant_new_uint64(high);
	181	*data = g_variant_new_tuple(range, 2);
	182	}
	183	break;
	184	case SR_CONF_POWER_OFF:
	185	*data = g_variant_new_boolean(FALSE);
	186	break;
	187	case SR_CONF_DATA_SOURCE:
	188	if (devc->cur_data_source == DATA_SOURCE_LIVE)
	189	*data = g_variant_new_string("Live");
	190	else
	191	*data = g_variant_new_string("Memory");
	192	break;
	193	default:
	194	return SR_ERR_NA;
	195	}
	196
	197	return ret;
	198	}
	199
	200	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	201	const struct sr_channel_group *cg)
	202	{
	203	struct dev_context *devc;
	204	uint64_t tmp_u64, low, high;
	205	unsigned int i;
	206	int tmp, ret;
	207	const char *tmp_str;
	208
	209	(void)cg;
	210
	211	devc = sdi->priv;
	212
	213	ret = SR_OK;
	214	switch (key) {
	215	case SR_CONF_LIMIT_SAMPLES:
	216	tmp_u64 = g_variant_get_uint64(data);
	217	devc->limit_samples = tmp_u64;
	218	ret = SR_OK;
	219	break;
	220	case SR_CONF_DATALOG:
	221	ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
	222	break;
	223	case SR_CONF_SPL_WEIGHT_FREQ:
	224	tmp_str = g_variant_get_string(data, NULL);
	225	if (!strcmp(tmp_str, "A"))
	226	ret = cem_dt_885x_weight_freq_set(sdi,
	227	SR_MQFLAG_SPL_FREQ_WEIGHT_A);
	228	else if (!strcmp(tmp_str, "C"))
	229	ret = cem_dt_885x_weight_freq_set(sdi,
	230	SR_MQFLAG_SPL_FREQ_WEIGHT_C);
	231	else
	232	return SR_ERR_ARG;
	233	break;
	234	case SR_CONF_SPL_WEIGHT_TIME:
	235	tmp_str = g_variant_get_string(data, NULL);
	236	if (!strcmp(tmp_str, "F"))
	237	ret = cem_dt_885x_weight_time_set(sdi,
	238	SR_MQFLAG_SPL_TIME_WEIGHT_F);
	239	else if (!strcmp(tmp_str, "S"))
	240	ret = cem_dt_885x_weight_time_set(sdi,
	241	SR_MQFLAG_SPL_TIME_WEIGHT_S);
	242	else
	243	return SR_ERR_ARG;
	244	break;
	245	case SR_CONF_HOLD_MAX:
	246	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
	247	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	248	break;
	249	case SR_CONF_HOLD_MIN:
	250	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
	251	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	252	break;
	253	case SR_CONF_SPL_MEASUREMENT_RANGE:
	254	g_variant_get(data, "(tt)", &low, &high);
	255	ret = SR_ERR_ARG;
	256	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	257	if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
	258	ret = cem_dt_885x_meas_range_set(sdi, low, high);
	259	break;
	260	}
	261	}
	262	break;
	263	case SR_CONF_POWER_OFF:
	264	if (g_variant_get_boolean(data))
	265	ret = cem_dt_885x_power_off(sdi);
	266	break;
	267	case SR_CONF_DATA_SOURCE:
	268	tmp_str = g_variant_get_string(data, NULL);
	269	if (!strcmp(tmp_str, "Live"))
	270	devc->cur_data_source = DATA_SOURCE_LIVE;
	271	else if (!strcmp(tmp_str, "Memory"))
	272	devc->cur_data_source = DATA_SOURCE_MEMORY;
	273	else
	274	return SR_ERR;
	275	devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
	276	break;
	277	default:
	278	ret = SR_ERR_NA;
	279	}
	280
	281	return ret;
	282	}
	283
	284	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	285	const struct sr_channel_group *cg)
	286	{
	287	GVariant tuple, range[2];
	288	GVariantBuilder gvb;
	289	unsigned int i;
	290
	291	switch (key) {
	292	case SR_CONF_SCAN_OPTIONS:
	293	case SR_CONF_DEVICE_OPTIONS:
	294	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	295	case SR_CONF_SPL_WEIGHT_FREQ:
	296	*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
	297	break;
	298	case SR_CONF_SPL_WEIGHT_TIME:
	299	*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
	300	break;
	301	case SR_CONF_SPL_MEASUREMENT_RANGE:
	302	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	303	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	304	range[0] = g_variant_new_uint64(meas_ranges[i][0]);
	305	range[1] = g_variant_new_uint64(meas_ranges[i][1]);
	306	tuple = g_variant_new_tuple(range, 2);
	307	g_variant_builder_add_value(&gvb, tuple);
	308	}
	309	*data = g_variant_builder_end(&gvb);
	310	break;
	311	case SR_CONF_DATA_SOURCE:
	312	*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
	313	break;
	314	default:
	315	return SR_ERR_NA;
	316	}
	317
	318	return SR_OK;
	319	}
	320
	321	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	322	{
	323	struct dev_context *devc;
	324	struct sr_serial_dev_inst *serial;
	325
	326	devc = sdi->priv;
	327	devc->state = ST_INIT;
	328	devc->num_samples = 0;
	329	devc->buf_len = 0;
	330
	331	std_session_send_df_header(sdi);
	332
	333	/* Poll every 100ms, or whenever some data comes in. */
	334	serial = sdi->conn;
	335	serial_source_add(sdi->session, serial, G_IO_IN, 150,
	336	cem_dt_885x_receive_data, (void *)sdi);
	337
	338	return SR_OK;
	339	}
	340
	341	static struct sr_dev_driver cem_dt_885x_driver_info = {
	342	.name = "cem-dt-885x",
	343	.longname = "CEM DT-885x",
	344	.api_version = 1,
	345	.init = std_init,
	346	.cleanup = std_cleanup,
	347	.scan = scan,
	348	.dev_list = std_dev_list,
	349	.dev_clear = std_dev_clear,
	350	.config_get = config_get,
	351	.config_set = config_set,
	352	.config_list = config_list,
	353	.dev_open = std_serial_dev_open,
	354	.dev_close = std_serial_dev_close,
	355	.dev_acquisition_start = dev_acquisition_start,
	356	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	357	.context = NULL,
	358	};
	359	SR_REGISTER_DEV_DRIVER(cem_dt_885x_driver_info);