[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 <string.h>
#include "protocol.h"

#define SERIALCOMM "9600/8n1"
/* 23ms is the longest interval between tokens. */
#define MAX_SCAN_TIME 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_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_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",
};
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_channel *ch;
	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;
	drvc = di->priv;
	start = g_get_monotonic_time();
	while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
		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;
			sdi->driver = di;
			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL");
			sdi->channels = g_slist_append(sdi->channels, ch);
			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)
{
	return ((struct drv_context *)(di->priv))->instances;
}

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 cleanup(void)
{
	return std_dev_clear(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;
	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;

	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(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));
		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;
	serial_source_add(sdi->session, serial, 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)
{
	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
			sdi->conn, LOG_PREFIX);
}

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 = NULL,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = std_serial_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 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_DATALOG \| SR_CONF_GET \| SR_CONF_SET,
	42	SR_CONF_HOLD_MAX \| SR_CONF_GET \| SR_CONF_SET,
	43	SR_CONF_HOLD_MIN \| SR_CONF_GET \| SR_CONF_SET,
	44	SR_CONF_POWER_OFF \| SR_CONF_GET \| SR_CONF_SET,
	45	SR_CONF_DATA_SOURCE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	46	};
	47
	48	static const char *weight_freq[] = {
	49	"A",
	50	"C",
	51	};
	52
	53	static const char *weight_time[] = {
	54	"F",
	55	"S",
	56	};
	57
	58	static const uint64_t meas_ranges[][2] = {
	59	{ 30, 130 },
	60	{ 30, 80 },
	61	{ 50, 100 },
	62	{ 80, 130 },
	63	};
	64
	65	static const char *data_sources[] = {
	66	"Live",
	67	"Memory",
	68	};
	69	SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
	70	static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
	71
	72
	73	static int init(struct sr_context *sr_ctx)
	74	{
	75	return std_init(sr_ctx, di, LOG_PREFIX);
	76	}
	77
	78	static GSList scan(GSList options)
	79	{
	80	struct drv_context *drvc;
	81	struct dev_context *devc;
	82	struct sr_config *src;
	83	struct sr_serial_dev_inst *serial;
	84	struct sr_dev_inst *sdi;
	85	struct sr_channel *ch;
	86	GSList l, devices;
	87	gint64 start;
	88	const char *conn;
	89	unsigned char c;
	90
	91	conn = NULL;
	92	for (l = options; l; l = l->next) {
	93	src = l->data;
	94	if (src->key == SR_CONF_CONN)
	95	conn = g_variant_get_string(src->data, NULL);
	96	}
	97	if (!conn)
	98	return NULL;
	99
	100	serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
	101
	102	if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
	103	return NULL;
	104
	105	devices = NULL;
	106	drvc = di->priv;
	107	start = g_get_monotonic_time();
	108	while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
	109	if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
	110	/* Found one. */
	111	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	112	sdi->status = SR_ST_INACTIVE;
	113	sdi->vendor = g_strdup("CEM");
	114	sdi->model = g_strdup("DT-885x");
	115	devc = g_malloc0(sizeof(struct dev_context));
	116	devc->cur_mqflags = 0;
	117	devc->recording = -1;
	118	devc->cur_meas_range = 0;
	119	devc->cur_data_source = DATA_SOURCE_LIVE;
	120	devc->enable_data_source_memory = FALSE;
	121	sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
	122	sdi->inst_type = SR_INST_SERIAL;
	123	sdi->priv = devc;
	124	sdi->driver = di;
	125	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL");
	126	sdi->channels = g_slist_append(sdi->channels, ch);
	127	drvc->instances = g_slist_append(drvc->instances, sdi);
	128	devices = g_slist_append(devices, sdi);
	129	break;
	130	}
	131	/* It takes about 1ms for a byte to come in. */
	132	g_usleep(1000);
	133	}
	134
	135	serial_close(serial);
	136
	137	return devices;
	138	}
	139
	140	static GSList *dev_list(void)
	141	{
	142	return ((struct drv_context *)(di->priv))->instances;
	143	}
	144
	145	static int dev_open(struct sr_dev_inst *sdi)
	146	{
	147	struct sr_serial_dev_inst *serial;
	148
	149	serial = sdi->conn;
	150	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	151	return SR_ERR;
	152
	153	sdi->status = SR_ST_ACTIVE;
	154
	155	return SR_OK;
	156	}
	157
	158	static int cleanup(void)
	159	{
	160	return std_dev_clear(di, NULL);
	161	}
	162
	163	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	164	const struct sr_channel_group *cg)
	165	{
	166	struct dev_context *devc;
	167	GVariant *range[2];
	168	uint64_t low, high;
	169	int tmp, ret;
	170
	171	(void)cg;
	172
	173	if (!sdi)
	174	return SR_ERR_ARG;
	175
	176	devc = sdi->priv;
	177	ret = SR_OK;
	178	switch (key) {
	179	case SR_CONF_LIMIT_SAMPLES:
	180	*data = g_variant_new_uint64(devc->limit_samples);
	181	break;
	182	case SR_CONF_DATALOG:
	183	if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
	184	*data = g_variant_new_boolean(tmp);
	185	break;
	186	case SR_CONF_SPL_WEIGHT_FREQ:
	187	tmp = cem_dt_885x_weight_freq_get(sdi);
	188	if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
	189	*data = g_variant_new_string("A");
	190	else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
	191	*data = g_variant_new_string("C");
	192	else
	193	return SR_ERR;
	194	break;
	195	case SR_CONF_SPL_WEIGHT_TIME:
	196	tmp = cem_dt_885x_weight_time_get(sdi);
	197	if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
	198	*data = g_variant_new_string("F");
	199	else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
	200	*data = g_variant_new_string("S");
	201	else
	202	return SR_ERR;
	203	break;
	204	case SR_CONF_HOLD_MAX:
	205	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	206	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
	207	break;
	208	case SR_CONF_HOLD_MIN:
	209	if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
	210	*data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
	211	break;
	212	case SR_CONF_SPL_MEASUREMENT_RANGE:
	213	if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
	214	range[0] = g_variant_new_uint64(low);
	215	range[1] = g_variant_new_uint64(high);
	216	*data = g_variant_new_tuple(range, 2);
	217	}
	218	break;
	219	case SR_CONF_POWER_OFF:
	220	*data = g_variant_new_boolean(FALSE);
	221	break;
	222	case SR_CONF_DATA_SOURCE:
	223	if (devc->cur_data_source == DATA_SOURCE_LIVE)
	224	*data = g_variant_new_string("Live");
	225	else
	226	*data = g_variant_new_string("Memory");
	227	break;
	228	default:
	229	return SR_ERR_NA;
	230	}
	231
	232	return ret;
	233	}
	234
	235	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	236	const struct sr_channel_group *cg)
	237	{
	238	struct dev_context *devc;
	239	uint64_t tmp_u64, low, high;
	240	unsigned int i;
	241	int tmp, ret;
	242	const char *tmp_str;
	243
	244	(void)cg;
	245
	246	if (sdi->status != SR_ST_ACTIVE)
	247	return SR_ERR_DEV_CLOSED;
	248
	249	if (!(devc = sdi->priv)) {
	250	sr_err("sdi->priv was NULL.");
	251	return SR_ERR_BUG;
	252	}
	253
	254	ret = SR_OK;
	255	switch (key) {
	256	case SR_CONF_LIMIT_SAMPLES:
	257	tmp_u64 = g_variant_get_uint64(data);
	258	devc->limit_samples = tmp_u64;
	259	ret = SR_OK;
	260	break;
	261	case SR_CONF_DATALOG:
	262	ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
	263	break;
	264	case SR_CONF_SPL_WEIGHT_FREQ:
	265	tmp_str = g_variant_get_string(data, NULL);
	266	if (!strcmp(tmp_str, "A"))
	267	ret = cem_dt_885x_weight_freq_set(sdi,
	268	SR_MQFLAG_SPL_FREQ_WEIGHT_A);
	269	else if (!strcmp(tmp_str, "C"))
	270	ret = cem_dt_885x_weight_freq_set(sdi,
	271	SR_MQFLAG_SPL_FREQ_WEIGHT_C);
	272	else
	273	return SR_ERR_ARG;
	274	break;
	275	case SR_CONF_SPL_WEIGHT_TIME:
	276	tmp_str = g_variant_get_string(data, NULL);
	277	if (!strcmp(tmp_str, "F"))
	278	ret = cem_dt_885x_weight_time_set(sdi,
	279	SR_MQFLAG_SPL_TIME_WEIGHT_F);
	280	else if (!strcmp(tmp_str, "S"))
	281	ret = cem_dt_885x_weight_time_set(sdi,
	282	SR_MQFLAG_SPL_TIME_WEIGHT_S);
	283	else
	284	return SR_ERR_ARG;
	285	break;
	286	case SR_CONF_HOLD_MAX:
	287	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
	288	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	289	break;
	290	case SR_CONF_HOLD_MIN:
	291	tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
	292	ret = cem_dt_885x_holdmode_set(sdi, tmp);
	293	break;
	294	case SR_CONF_SPL_MEASUREMENT_RANGE:
	295	g_variant_get(data, "(tt)", &low, &high);
	296	ret = SR_ERR_ARG;
	297	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	298	if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
	299	ret = cem_dt_885x_meas_range_set(sdi, low, high);
	300	break;
	301	}
	302	}
	303	break;
	304	case SR_CONF_POWER_OFF:
	305	if (g_variant_get_boolean(data))
	306	ret = cem_dt_885x_power_off(sdi);
	307	break;
	308	case SR_CONF_DATA_SOURCE:
	309	tmp_str = g_variant_get_string(data, NULL);
	310	if (!strcmp(tmp_str, "Live"))
	311	devc->cur_data_source = DATA_SOURCE_LIVE;
	312	else if (!strcmp(tmp_str, "Memory"))
	313	devc->cur_data_source = DATA_SOURCE_MEMORY;
	314	else
	315	return SR_ERR;
	316	devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
	317	break;
	318	default:
	319	ret = SR_ERR_NA;
	320	}
	321
	322	return ret;
	323	}
	324
	325	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	326	const struct sr_channel_group *cg)
	327	{
	328	GVariant tuple, range[2];
	329	GVariantBuilder gvb;
	330	unsigned int i;
	331	int ret;
	332
	333	(void)cg;
	334
	335	ret = SR_OK;
	336	if (!sdi) {
	337	switch (key) {
	338	case SR_CONF_SCAN_OPTIONS:
	339	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	340	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	341	break;
	342	case SR_CONF_DEVICE_OPTIONS:
	343	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	344	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
	345	break;
	346	default:
	347	return SR_ERR_NA;
	348	}
	349	} else {
	350	switch (key) {
	351	case SR_CONF_DEVICE_OPTIONS:
	352	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	353	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	354	case SR_CONF_SPL_WEIGHT_FREQ:
	355	*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
	356	break;
	357	case SR_CONF_SPL_WEIGHT_TIME:
	358	*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
	359	break;
	360	case SR_CONF_SPL_MEASUREMENT_RANGE:
	361	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	362	for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
	363	range[0] = g_variant_new_uint64(meas_ranges[i][0]);
	364	range[1] = g_variant_new_uint64(meas_ranges[i][1]);
	365	tuple = g_variant_new_tuple(range, 2);
	366	g_variant_builder_add_value(&gvb, tuple);
	367	}
	368	*data = g_variant_builder_end(&gvb);
	369	break;
	370	case SR_CONF_DATA_SOURCE:
	371	*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
	372	break;
	373	default:
	374	return SR_ERR_NA;
	375	}
	376	}
	377
	378	return ret;
	379	}
	380
	381	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	382	{
	383	struct dev_context *devc;
	384	struct sr_serial_dev_inst *serial;
	385
	386	if (sdi->status != SR_ST_ACTIVE)
	387	return SR_ERR_DEV_CLOSED;
	388
	389	if (!(devc = sdi->priv)) {
	390	sr_err("sdi->priv was NULL.");
	391	return SR_ERR_BUG;
	392	}
	393
	394	devc->cb_data = cb_data;
	395	devc->state = ST_INIT;
	396	devc->num_samples = 0;
	397	devc->buf_len = 0;
	398
	399	/* Send header packet to the session bus. */
	400	std_session_send_df_header(cb_data, LOG_PREFIX);
	401
	402	/* Poll every 100ms, or whenever some data comes in. */
	403	serial = sdi->conn;
	404	serial_source_add(sdi->session, serial, G_IO_IN, 150,
	405	cem_dt_885x_receive_data, (void *)sdi);
	406
	407	return SR_OK;
	408	}
	409
	410	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	411	{
	412	if (sdi->status != SR_ST_ACTIVE)
	413	return SR_ERR_DEV_CLOSED;
	414
	415	return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
	416	sdi->conn, LOG_PREFIX);
	417	}
	418
	419	SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
	420	.name = "cem-dt-885x",
	421	.longname = "CEM DT-885x",
	422	.api_version = 1,
	423	.init = init,
	424	.cleanup = cleanup,
	425	.scan = scan,
	426	.dev_list = dev_list,
	427	.dev_clear = NULL,
	428	.config_get = config_get,
	429	.config_set = config_set,
	430	.config_list = config_list,
	431	.dev_open = dev_open,
	432	.dev_close = std_serial_dev_close,
	433	.dev_acquisition_start = dev_acquisition_start,
	434	.dev_acquisition_stop = dev_acquisition_stop,
	435	.priv = NULL,
	436	};