[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_SPL_WEIGHT_FREQ,
	SR_CONF_SPL_WEIGHT_TIME,
	SR_CONF_SPL_MEASUREMENT_RANGE,
	SR_CONF_DATALOG,
	SR_CONF_HOLD_MAX,
	SR_CONF_HOLD_MIN,
	SR_CONF_POWER_OFF,
	SR_CONF_DATA_SOURCE,
};

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",
};
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;
			devc->cur_meas_range = 0;
			devc->cur_data_source = DATA_SOURCE_LIVE;
			devc->enable_data_source_memory = FALSE;

			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;
	GVariant *range[2];
	uint64_t low, high;
	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;
	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(int key, GVariant *data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	uint64_t tmp_u64, low, high;
	unsigned int i;
	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;
	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(int key, GVariant **data, const struct sr_dev_inst *sdi)
{
	GVariant *tuple, *range[2];
	GVariantBuilder gvb;
	unsigned int i;
	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;
	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_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
	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 <string.h>
	21	#include "protocol.h"
	22
	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,
	35	SR_CONF_SPL_WEIGHT_FREQ,
	36	SR_CONF_SPL_WEIGHT_TIME,
	37	SR_CONF_SPL_MEASUREMENT_RANGE,
	38	SR_CONF_DATALOG,
	39	SR_CONF_HOLD_MAX,
	40	SR_CONF_HOLD_MIN,
	41	SR_CONF_POWER_OFF,
	42	SR_CONF_DATA_SOURCE,
	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
	62	static const char *data_sources[] = {
	63	"Live",
	64	"Memory",
	65	};
	66	SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
	67	static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
	68
	69
	70	static int init(struct sr_context *sr_ctx)
	71	{
	72	return std_init(sr_ctx, di, LOG_PREFIX);
	73	}
	74
	75	static GSList scan(GSList options)
	76	{
	77	struct drv_context *drvc;
	78	struct dev_context *devc;
	79	struct sr_config *src;
	80	struct sr_serial_dev_inst *serial;
	81	struct sr_dev_inst *sdi;
	82	struct sr_probe *probe;
	83	GSList l, devices;
	84	gint64 start;
	85	const char *conn;
	86	unsigned char c;
	87
	88	conn = NULL;
	89	for (l = options; l; l = l->next) {
	90	src = l->data;
	91	if (src->key == SR_CONF_CONN)
	92	conn = g_variant_get_string(src->data, NULL);
	93	}
	94	if (!conn)
	95	return NULL;
	96
	97	if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
	98	return NULL;
	99
	100	if (serial_open(serial, SERIAL_RDONLY \| SERIAL_NONBLOCK) != SR_OK)
	101	return NULL;
	102
	103	devices = NULL;
	104	drvc = di->priv;
	105	start = g_get_monotonic_time();
	106	while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
	107	if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
	108	/* Found one. */
	109	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
	110	"DT-885x", NULL)))
	111	return NULL;
	112
	113	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	114	sr_dbg("Device context malloc failed.");
	115	return NULL;
	116	}
	117	devc->cur_mqflags = 0;
	118	devc->recording = -1;
	119	devc->cur_meas_range = 0;
	120	devc->cur_data_source = DATA_SOURCE_LIVE;
	121	devc->enable_data_source_memory = FALSE;
	122
	123	if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
	124	return NULL;
	125
	126	sdi->inst_type = SR_INST_SERIAL;
	127	sdi->priv = devc;
	128	sdi->driver = di;
	129	if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "SPL")))
	130	return NULL;
	131	sdi->probes = g_slist_append(sdi->probes, probe);
	132	drvc->instances = g_slist_append(drvc->instances, sdi);
	133	devices = g_slist_append(devices, sdi);
	134	break;
	135	}
	136	/* It takes about 1ms for a byte to come in. */
	137	g_usleep(1000);
	138	}
	139
	140	serial_close(serial);
	141
	142	return devices;
	143	}
	144
	145	static GSList *dev_list(void)
	146	{
	147	struct drv_context *drvc;
	148
	149	drvc = di->priv;
	150
	151	return drvc->instances;
	152	}
	153
	154	static int dev_clear(void)
	155	{
	156	return std_dev_clear(di, NULL);
	157	}
	158
	159	static int dev_open(struct sr_dev_inst *sdi)
	160	{
	161	struct sr_serial_dev_inst *serial;
	162
	163	serial = sdi->conn;
	164	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	165	return SR_ERR;
	166
	167	sdi->status = SR_ST_ACTIVE;
	168
	169	return SR_OK;
	170	}
	171
	172	static int dev_close(struct sr_dev_inst *sdi)
	173	{
	174	struct sr_serial_dev_inst *serial;
	175
	176	serial = sdi->conn;
	177	if (serial && serial->fd != -1) {
	178	serial_close(serial);
	179	sdi->status = SR_ST_INACTIVE;
	180	}
	181
	182	return SR_OK;
	183	}
	184
	185	static int cleanup(void)
	186	{
	187	return dev_clear();
	188	}
	189
	190	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi)
	191	{
	192	struct dev_context *devc;
	193	GVariant *range[2];
	194	uint64_t low, high;
	195	int tmp, ret;
	196
	197	if (!sdi)
	198	return SR_ERR_ARG;
	199
	200	devc = sdi->priv;
	201	ret = SR_OK;
	202	switch (key) {
	203	case SR_CONF_LIMIT_SAMPLES:
	204	*data = g_variant_new_uint64(devc->limit_samples);
	205	break;
	206	case SR_CONF_DATALOG:
	207	if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
	208	*data = g_variant_new_boolean(tmp);
	209	break;
	210	case SR_CONF_SPL_WEIGHT_FREQ:
	211	tmp = cem_dt_885x_weight_freq_get(sdi);
	212	if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
	213	*data = g_variant_new_string("A");
	214	else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
	215	*data = g_variant_new_string("C");
	216	else
	217	return SR_ERR;
	218	break;
	219	case SR_CONF_SPL_WEIGHT_TIME:
	220	tmp = cem_dt_885x_weight_time_get(sdi);
	221	if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
	222	*data = g_variant_new_string("F");
	223	else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
	224	*data = g_variant_new_string("S");
	225	else
	226	return SR_ERR;
	227	break;
	228	case SR_CONF_HOLD_MAX:
	229	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	230	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
	231	break;
	232	case SR_CONF_HOLD_MIN:
	233	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	234	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
	235	break;
	236	case SR_CONF_SPL_MEASUREMENT_RANGE:
	237	if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
	238	range[0] = g_variant_new_uint64(low);
	239	range[1] = g_variant_new_uint64(high);
	240	*data = g_variant_new_tuple(range, 2);
	241	}
	242	break;
	243	case SR_CONF_POWER_OFF:
	244	*data = g_variant_new_boolean(FALSE);
	245	break;
	246	case SR_CONF_DATA_SOURCE:
	247	if (devc->cur_data_source == DATA_SOURCE_LIVE)
	248	*data = g_variant_new_string("Live");
	249	else
	250	*data = g_variant_new_string("Memory");
	251	break;
	252	default:
	253	return SR_ERR_NA;
	254	}
	255
	256	return ret;
	257	}
	258
	259	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi)
	260	{
	261	struct dev_context *devc;
	262	uint64_t tmp_u64, low, high;
	263	unsigned int i;
	264	int tmp, ret;
	265	const char *tmp_str;
	266
	267	if (sdi->status != SR_ST_ACTIVE)
	268	return SR_ERR_DEV_CLOSED;
	269
	270	if (!(devc = sdi->priv)) {
	271	sr_err("sdi->priv was NULL.");
	272	return SR_ERR_BUG;
	273	}
	274
	275	ret = SR_OK;
	276	switch (key) {
	277	case SR_CONF_LIMIT_SAMPLES:
	278	tmp_u64 = g_variant_get_uint64(data);
	279	devc->limit_samples = tmp_u64;
	280	ret = SR_OK;
	281	break;
	282	case SR_CONF_DATALOG:
	283	ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
	284	break;
	285	case SR_CONF_SPL_WEIGHT_FREQ:
	286	tmp_str = g_variant_get_string(data, NULL);
	287	if (!strcmp(tmp_str, "A"))
	288	ret = cem_dt_885x_weight_freq_set(sdi,
	289	SR_MQFLAG_SPL_FREQ_WEIGHT_A);
	290	else if (!strcmp(tmp_str, "C"))
	291	ret = cem_dt_885x_weight_freq_set(sdi,
	292	SR_MQFLAG_SPL_FREQ_WEIGHT_C);
	293	else
	294	return SR_ERR_ARG;
	295	break;
	296	case SR_CONF_SPL_WEIGHT_TIME:
	297	tmp_str = g_variant_get_string(data, NULL);
	298	if (!strcmp(tmp_str, "F"))
	299	ret = cem_dt_885x_weight_time_set(sdi,
	300	SR_MQFLAG_SPL_TIME_WEIGHT_F);
	301	else if (!strcmp(tmp_str, "S"))
	302	ret = cem_dt_885x_weight_time_set(sdi,
	303	SR_MQFLAG_SPL_TIME_WEIGHT_S);
	304	else
	305	return SR_ERR_ARG;
	306	break;
	307	case SR_CONF_HOLD_MAX:
	308	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
	309	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	310	break;
	311	case SR_CONF_HOLD_MIN:
	312	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
	313	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	314	break;
	315	case SR_CONF_SPL_MEASUREMENT_RANGE:
	316	g_variant_get(data, "(tt)", &low, &high);
	317	ret = SR_ERR_ARG;
	318	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	319	if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
	320	ret = cem_dt_885x_meas_range_set(sdi, low, high);
	321	break;
	322	}
	323	}
	324	break;
	325	case SR_CONF_POWER_OFF:
	326	if (g_variant_get_boolean(data))
	327	ret = cem_dt_885x_power_off(sdi);
	328	break;
	329	case SR_CONF_DATA_SOURCE:
	330	tmp_str = g_variant_get_string(data, NULL);
	331	if (!strcmp(tmp_str, "Live"))
	332	devc->cur_data_source = DATA_SOURCE_LIVE;
	333	else if (!strcmp(tmp_str, "Memory"))
	334	devc->cur_data_source = DATA_SOURCE_MEMORY;
	335	else
	336	return SR_ERR;
	337	devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
	338	break;
	339	default:
	340	ret = SR_ERR_NA;
	341	}
	342
	343	return ret;
	344	}
	345
	346	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	347	{
	348	GVariant tuple, range[2];
	349	GVariantBuilder gvb;
	350	unsigned int i;
	351	int ret;
	352
	353	(void)sdi;
	354
	355	ret = SR_OK;
	356	switch (key) {
	357	case SR_CONF_SCAN_OPTIONS:
	358	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	359	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	360	break;
	361	case SR_CONF_DEVICE_OPTIONS:
	362	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	363	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	364	break;
	365	case SR_CONF_SPL_WEIGHT_FREQ:
	366	*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
	367	break;
	368	case SR_CONF_SPL_WEIGHT_TIME:
	369	*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
	370	break;
	371	case SR_CONF_SPL_MEASUREMENT_RANGE:
	372	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	373	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	374	range[0] = g_variant_new_uint64(meas_ranges[i][0]);
	375	range[1] = g_variant_new_uint64(meas_ranges[i][1]);
	376	tuple = g_variant_new_tuple(range, 2);
	377	g_variant_builder_add_value(&gvb, tuple);
	378	}
	379	*data = g_variant_builder_end(&gvb);
	380	break;
	381	case SR_CONF_DATA_SOURCE:
	382	*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
	383	break;
	384	default:
	385	return SR_ERR_NA;
	386	}
	387
	388	return ret;
	389	}
	390
	391	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	392	{
	393	struct dev_context *devc;
	394	struct sr_serial_dev_inst *serial;
	395
	396	if (sdi->status != SR_ST_ACTIVE)
	397	return SR_ERR_DEV_CLOSED;
	398
	399	if (!(devc = sdi->priv)) {
	400	sr_err("sdi->priv was NULL.");
	401	return SR_ERR_BUG;
	402	}
	403
	404	devc->cb_data = cb_data;
	405	devc->state = ST_INIT;
	406	devc->num_samples = 0;
	407	devc->buf_len = 0;
	408
	409	/* Send header packet to the session bus. */
	410	std_session_send_df_header(cb_data, LOG_PREFIX);
	411
	412	/* Poll every 100ms, or whenever some data comes in. */
	413	serial = sdi->conn;
	414	sr_source_add(serial->fd, G_IO_IN, 150, cem_dt_885x_receive_data,
	415	(void *)sdi);
	416
	417	return SR_OK;
	418	}
	419
	420	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	421	{
	422	(void)cb_data;
	423
	424	if (sdi->status != SR_ST_ACTIVE)
	425	return SR_ERR_DEV_CLOSED;
	426
	427	return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
	428	sdi->conn, LOG_PREFIX);
	429
	430	return SR_OK;
	431	}
	432
	433	SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
	434	.name = "cem-dt-885x",
	435	.longname = "CEM DT-885x",
	436	.api_version = 1,
	437	.init = init,
	438	.cleanup = cleanup,
	439	.scan = scan,
	440	.dev_list = dev_list,
	441	.dev_clear = dev_clear,
	442	.config_get = config_get,
	443	.config_set = config_set,
	444	.config_list = config_list,
	445	.dev_open = dev_open,
	446	.dev_close = dev_close,
	447	.dev_acquisition_start = dev_acquisition_start,
	448	.dev_acquisition_stop = dev_acquisition_stop,
	449	.priv = NULL,
	450	};