[libsigrok.git] / 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 <string.h>
#include "protocol.h"

#define SERIALCOMM "9600/8n1"
/* 23ms is the longest interval between tokens. */
#define MAX_SCAN_TIME 25 * 1000

static const int32_t hwopts[] = {
	SR_CONF_CONN,
};

static const int32_t hwcaps[] = {
	SR_CONF_SOUNDLEVELMETER,
	SR_CONF_LIMIT_SAMPLES,
	SR_CONF_CONTINUOUS,
	SR_CONF_DATALOG,
	SR_CONF_SPL_WEIGHT_FREQ,
	SR_CONF_SPL_WEIGHT_TIME,
	SR_CONF_HOLD_MAX,
	SR_CONF_HOLD_MIN,
};

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

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

SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
static struct sr_dev_driver *di = &cem_dt_885x_driver_info;


static int init(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static GSList *scan(GSList *options)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_serial_dev_inst *serial;
	struct sr_dev_inst *sdi;
	struct sr_probe *probe;
	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;

	if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
		return NULL;

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

	devices = NULL;
	drvc = di->priv;
	start = g_get_monotonic_time();
	while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
		if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
			/* Found one. */
			if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
					"DT-885x", NULL)))
				return NULL;

			if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
				sr_dbg("Device context malloc failed.");
				return NULL;
			}
			devc->cur_mqflags = 0;
			devc->recording = -1;

			if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
				return NULL;

			sdi->inst_type = SR_INST_SERIAL;
			sdi->priv = devc;
			sdi->driver = di;
			if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "SPL")))
				return NULL;
			sdi->probes = g_slist_append(sdi->probes, probe);
			drvc->instances = g_slist_append(drvc->instances, sdi);
			devices = g_slist_append(devices, sdi);
			break;
		}
		/* It takes about 1ms for a byte to come in. */
		g_usleep(1000);
	}

	serial_close(serial);

	return devices;
}

static GSList *dev_list(void)
{
	struct drv_context *drvc;

	drvc = di->priv;

	return drvc->instances;
}

static int dev_clear(void)
{
	return std_dev_clear(di, NULL);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct sr_serial_dev_inst *serial;

	serial = sdi->conn;
	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
		return SR_ERR;

	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct sr_serial_dev_inst *serial;

	serial = sdi->conn;
	if (serial && serial->fd != -1) {
		serial_close(serial);
		sdi->status = SR_ST_INACTIVE;
	}

	return SR_OK;
}

static int cleanup(void)
{
	return dev_clear();
}

static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	int tmp, ret;

	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;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	uint64_t tmp_u64;
	int tmp, ret;
	const char *tmp_str;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	if (!(devc = sdi->priv)) {
		sr_err("sdi->priv was NULL.");
		return SR_ERR_BUG;
	}

	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;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
{
	int ret;

	(void)sdi;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_SCAN_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
		break;
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_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;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

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

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	if (!(devc = sdi->priv)) {
		sr_err("sdi->priv was NULL.");
		return SR_ERR_BUG;
	}

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

	/* Send header packet to the session bus. */
	std_session_send_df_header(cb_data, LOG_PREFIX);

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

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	(void)cb_data;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
			sdi->conn, LOG_PREFIX);

	return SR_OK;
}

SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
	.name = "cem-dt-885x",
	.longname = "CEM DT-885x",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = 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 = dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
8fa9368e BV	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
be733919	20	#include <string.h>
8fa9368e BV	21	#include "protocol.h"
8fa9368e BV	22
7fb8279c BV	23	#define SERIALCOMM "9600/8n1"
	24	/* 23ms is the longest interval between tokens. */
	25	#define MAX_SCAN_TIME 25 * 1000
	26
	27	static const int32_t hwopts[] = {
	28	SR_CONF_CONN,
	29	};
	30
	31	static const int32_t hwcaps[] = {
	32	SR_CONF_SOUNDLEVELMETER,
	33	SR_CONF_LIMIT_SAMPLES,
	34	SR_CONF_CONTINUOUS,
e1af0e85	35	SR_CONF_DATALOG,
be733919	36	SR_CONF_SPL_WEIGHT_FREQ,
1487ce4f	37	SR_CONF_SPL_WEIGHT_TIME,
a90e480c BV	38	SR_CONF_HOLD_MAX,
a90e480c BV	39	SR_CONF_HOLD_MIN,
7fb8279c BV	40	};
7fb8279c BV	41
be733919 BV	42	static const char *weight_freq[] = {
	43	"A",
	44	"C",
	45	};
7fb8279c	46
1487ce4f BV	47	static const char *weight_time[] = {
	48	"F",
	49	"S",
	50	};
	51
8fa9368e BV	52	SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
	53	static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
	54
	55
	56	static int init(struct sr_context *sr_ctx)
	57	{
	58	return std_init(sr_ctx, di, LOG_PREFIX);
	59	}
	60
	61	static GSList scan(GSList options)
	62	{
	63	struct drv_context *drvc;
7fb8279c BV	64	struct dev_context *devc;
	65	struct sr_config *src;
	66	struct sr_serial_dev_inst *serial;
	67	struct sr_dev_inst *sdi;
	68	struct sr_probe *probe;
	69	GSList l, devices;
	70	gint64 start;
	71	const char *conn;
	72	unsigned char c;
	73
	74	conn = NULL;
	75	for (l = options; l; l = l->next) {
	76	src = l->data;
	77	if (src->key == SR_CONF_CONN)
	78	conn = g_variant_get_string(src->data, NULL);
	79	}
	80	if (!conn)
	81	return NULL;
	82
	83	if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
	84	return NULL;
8fa9368e	85
7fb8279c BV	86	if (serial_open(serial, SERIAL_RDONLY \| SERIAL_NONBLOCK) != SR_OK)
7fb8279c BV	87	return NULL;
8fa9368e BV	88
	89	devices = NULL;
	90	drvc = di->priv;
7fb8279c BV	91	start = g_get_monotonic_time();
	92	while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
	93	if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
	94	/* Found one. */
	95	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
	96	"DT-885x", NULL)))
	97	return NULL;
	98
	99	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	100	sr_dbg("Device context malloc failed.");
	101	return NULL;
	102	}
e1af0e85 BV	103	devc->cur_mqflags = 0;
e1af0e85 BV	104	devc->recording = -1;
7fb8279c BV	105
	106	if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
	107	return NULL;
	108
	109	sdi->inst_type = SR_INST_SERIAL;
	110	sdi->priv = devc;
	111	sdi->driver = di;
e37c4b39	112	if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "SPL")))
7fb8279c BV	113	return NULL;
	114	sdi->probes = g_slist_append(sdi->probes, probe);
	115	drvc->instances = g_slist_append(drvc->instances, sdi);
	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	}
8fa9368e	122
7fb8279c	123	serial_close(serial);
8fa9368e BV	124
	125	return devices;
	126	}
	127
	128	static GSList *dev_list(void)
	129	{
	130	struct drv_context *drvc;
	131
	132	drvc = di->priv;
	133
	134	return drvc->instances;
	135	}
	136
	137	static int dev_clear(void)
	138	{
	139	return std_dev_clear(di, NULL);
	140	}
	141
	142	static int dev_open(struct sr_dev_inst *sdi)
	143	{
7fb8279c	144	struct sr_serial_dev_inst *serial;
8fa9368e	145
7fb8279c BV	146	serial = sdi->conn;
	147	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	148	return SR_ERR;
8fa9368e BV	149
	150	sdi->status = SR_ST_ACTIVE;
	151
	152	return SR_OK;
	153	}
	154
	155	static int dev_close(struct sr_dev_inst *sdi)
	156	{
7fb8279c	157	struct sr_serial_dev_inst *serial;
8fa9368e	158
7fb8279c BV	159	serial = sdi->conn;
	160	if (serial && serial->fd != -1) {
	161	serial_close(serial);
	162	sdi->status = SR_ST_INACTIVE;
	163	}
8fa9368e BV	164
	165	return SR_OK;
	166	}
	167
	168	static int cleanup(void)
	169	{
7fb8279c	170	return dev_clear();
8fa9368e BV	171	}
	172
	173	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi)
	174	{
7fb8279c	175	struct dev_context *devc;
a90e480c	176	int tmp, ret;
8fa9368e	177
7fb8279c BV	178	if (!sdi)
7fb8279c BV	179	return SR_ERR_ARG;
8fa9368e	180
7fb8279c	181	devc = sdi->priv;
a90e480c	182	ret = SR_OK;
8fa9368e	183	switch (key) {
7fb8279c BV	184	case SR_CONF_LIMIT_SAMPLES:
	185	*data = g_variant_new_uint64(devc->limit_samples);
	186	break;
e1af0e85	187	case SR_CONF_DATALOG:
0cd9107d BV	188	if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
0cd9107d BV	189	*data = g_variant_new_boolean(tmp);
e1af0e85	190	break;
be733919 BV	191	case SR_CONF_SPL_WEIGHT_FREQ:
	192	tmp = cem_dt_885x_weight_freq_get(sdi);
	193	if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
	194	*data = g_variant_new_string("A");
	195	else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
	196	*data = g_variant_new_string("C");
	197	else
	198	return SR_ERR;
	199	break;
1487ce4f BV	200	case SR_CONF_SPL_WEIGHT_TIME:
	201	tmp = cem_dt_885x_weight_time_get(sdi);
	202	if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
	203	*data = g_variant_new_string("F");
	204	else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
	205	*data = g_variant_new_string("S");
	206	else
	207	return SR_ERR;
	208	break;
a90e480c BV	209	case SR_CONF_HOLD_MAX:
	210	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	211	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
	212	break;
	213	case SR_CONF_HOLD_MIN:
	214	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	215	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
	216	break;
8fa9368e BV	217	default:
	218	return SR_ERR_NA;
	219	}
	220
a90e480c	221	return ret;
8fa9368e BV	222	}
	223
	224	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi)
	225	{
7fb8279c BV	226	struct dev_context *devc;
7fb8279c BV	227	uint64_t tmp_u64;
a90e480c	228	int tmp, ret;
be733919	229	const char *tmp_str;
8fa9368e	230
8fa9368e BV	231	if (sdi->status != SR_ST_ACTIVE)
	232	return SR_ERR_DEV_CLOSED;
	233
7fb8279c BV	234	if (!(devc = sdi->priv)) {
	235	sr_err("sdi->priv was NULL.");
	236	return SR_ERR_BUG;
	237	}
	238
8fa9368e BV	239	ret = SR_OK;
8fa9368e BV	240	switch (key) {
7fb8279c BV	241	case SR_CONF_LIMIT_SAMPLES:
	242	tmp_u64 = g_variant_get_uint64(data);
	243	devc->limit_samples = tmp_u64;
	244	ret = SR_OK;
	245	break;
e1af0e85	246	case SR_CONF_DATALOG:
0cd9107d	247	ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85	248	break;
be733919 BV	249	case SR_CONF_SPL_WEIGHT_FREQ:
	250	tmp_str = g_variant_get_string(data, NULL);
	251	if (!strcmp(tmp_str, "A"))
	252	ret = cem_dt_885x_weight_freq_set(sdi,
	253	SR_MQFLAG_SPL_FREQ_WEIGHT_A);
	254	else if (!strcmp(tmp_str, "C"))
	255	ret = cem_dt_885x_weight_freq_set(sdi,
	256	SR_MQFLAG_SPL_FREQ_WEIGHT_C);
	257	else
	258	return SR_ERR_ARG;
	259	break;
1487ce4f BV	260	case SR_CONF_SPL_WEIGHT_TIME:
	261	tmp_str = g_variant_get_string(data, NULL);
	262	if (!strcmp(tmp_str, "F"))
	263	ret = cem_dt_885x_weight_time_set(sdi,
	264	SR_MQFLAG_SPL_TIME_WEIGHT_F);
	265	else if (!strcmp(tmp_str, "S"))
	266	ret = cem_dt_885x_weight_time_set(sdi,
	267	SR_MQFLAG_SPL_TIME_WEIGHT_S);
	268	else
	269	return SR_ERR_ARG;
	270	break;
a90e480c BV	271	case SR_CONF_HOLD_MAX:
	272	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
	273	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	274	break;
	275	case SR_CONF_HOLD_MIN:
	276	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
	277	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	278	break;
8fa9368e BV	279	default:
	280	ret = SR_ERR_NA;
	281	}
	282
	283	return ret;
	284	}
	285
	286	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	287	{
	288	int ret;
	289
	290	(void)sdi;
8fa9368e BV	291
	292	ret = SR_OK;
	293	switch (key) {
7fb8279c BV	294	case SR_CONF_SCAN_OPTIONS:
	295	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	296	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	297	break;
	298	case SR_CONF_DEVICE_OPTIONS:
	299	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	300	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	301	break;
be733919 BV	302	case SR_CONF_SPL_WEIGHT_FREQ:
	303	*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
	304	break;
1487ce4f BV	305	case SR_CONF_SPL_WEIGHT_TIME:
	306	*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
	307	break;
8fa9368e BV	308	default:
	309	return SR_ERR_NA;
	310	}
	311
	312	return ret;
	313	}
	314
e37c4b39	315	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
8fa9368e	316	{
e37c4b39 BV	317	struct dev_context *devc;
e37c4b39 BV	318	struct sr_serial_dev_inst *serial;
8fa9368e BV	319
	320	if (sdi->status != SR_ST_ACTIVE)
	321	return SR_ERR_DEV_CLOSED;
	322
e37c4b39 BV	323	if (!(devc = sdi->priv)) {
	324	sr_err("sdi->priv was NULL.");
	325	return SR_ERR_BUG;
	326	}
	327
	328	devc->cb_data = cb_data;
	329	devc->state = ST_INIT;
	330	devc->num_samples = 0;
	331	devc->buf_len = 0;
	332
	333	/* Send header packet to the session bus. */
	334	std_session_send_df_header(cb_data, LOG_PREFIX);
	335
	336	/* Poll every 100ms, or whenever some data comes in. */
	337	serial = sdi->conn;
	338	sr_source_add(serial->fd, G_IO_IN, 150, cem_dt_885x_receive_data,
	339	(void *)sdi);
8fa9368e BV	340
	341	return SR_OK;
	342	}
	343
	344	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	345	{
	346	(void)cb_data;
	347
	348	if (sdi->status != SR_ST_ACTIVE)
	349	return SR_ERR_DEV_CLOSED;
	350
e37c4b39 BV	351	return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
e37c4b39 BV	352	sdi->conn, LOG_PREFIX);
8fa9368e BV	353
	354	return SR_OK;
	355	}
	356
	357	SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
	358	.name = "cem-dt-885x",
	359	.longname = "CEM DT-885x",
	360	.api_version = 1,
	361	.init = init,
	362	.cleanup = cleanup,
	363	.scan = scan,
	364	.dev_list = dev_list,
	365	.dev_clear = dev_clear,
	366	.config_get = config_get,
	367	.config_set = config_set,
	368	.config_list = config_list,
	369	.dev_open = dev_open,
	370	.dev_close = dev_close,
	371	.dev_acquisition_start = dev_acquisition_start,
	372	.dev_acquisition_stop = dev_acquisition_stop,
	373	.priv = NULL,
	374	};