[libsigrok.git] / src / hardware / arachnid-labs-re-load-pro / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2015-2016 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * 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 2 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 "115200/8n1"

#define CMD_VERSION "version\r\n"
#define CMD_MONITOR "monitor 200\r\n"

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

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

static const uint32_t devopts[] = {
	SR_CONF_CONTINUOUS,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
};

static const uint32_t devopts_cg[] = {
	SR_CONF_ENABLED | SR_CONF_SET,
	SR_CONF_REGULATION | SR_CONF_GET,
	SR_CONF_VOLTAGE | SR_CONF_GET,
	SR_CONF_CURRENT | SR_CONF_GET,
	SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED | SR_CONF_GET,
	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_GET,
	SR_CONF_OVER_TEMPERATURE_PROTECTION | SR_CONF_GET,
	SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE | SR_CONF_GET,
	SR_CONF_UNDER_VOLTAGE_CONDITION | SR_CONF_GET,
	SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE | SR_CONF_GET,
};

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_serial_dev_inst *serial;
	struct sr_channel_group *cg;
	struct sr_channel *ch;
	GSList *l;
	int ret, len;
	const char *conn, *serialcomm;
	char buf[100];
	char *bufptr;
	double version;

	conn = serialcomm = NULL;
	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = g_variant_get_string(src->data, NULL);
			break;
		case SR_CONF_SERIALCOMM:
			serialcomm = g_variant_get_string(src->data, NULL);
			break;
		}
	}
	if (!conn)
		return NULL;
	if (!serialcomm)
		serialcomm = SERIALCOMM;

	serial = sr_serial_dev_inst_new(conn, serialcomm);

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

	serial_flush(serial);

	if (serial_write_blocking(serial, CMD_VERSION,
			strlen(CMD_VERSION), serial_timeout(serial,
			strlen(CMD_VERSION))) < (int)strlen(CMD_VERSION)) {
		sr_dbg("Unable to write while probing for hardware.");
		serial_close(serial);
		return NULL;
	}

	memset(buf, 0, sizeof(buf));
	bufptr = buf;
	len = sizeof(buf);
	ret = serial_readline(serial, &bufptr, &len, 3000);

	if (ret < 0 || len < 9 || strncmp((const char *)&buf, "version ", 8)) {
		sr_dbg("Unable to probe version number.");
		serial_close(serial);
		return NULL;
	}

	version = g_ascii_strtod(buf + 8, NULL);
	if (version < 1.10) {
		sr_info("Firmware >= 1.10 required (got %1.2f).", version);
		serial_close(serial);
		return NULL;
	}

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("Arachnid Labs");
	sdi->model = g_strdup("Re:load Pro");
	sdi->version = g_strdup(buf + 8);
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;

	cg = g_malloc0(sizeof(struct sr_channel_group));
	cg->name = g_strdup("1");
	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);

	ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "V");
	cg->channels = g_slist_append(cg->channels, ch);

	ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "I");
	cg->channels = g_slist_append(cg->channels, ch);

	devc = g_malloc0(sizeof(struct dev_context));
	sr_sw_limits_init(&devc->limits);
	sdi->priv = devc;

	serial_close(serial);

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

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	GVariantBuilder gvb;
	int ret;

	/* Always available. */
	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
			scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
			drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (!sdi)
		return SR_ERR_ARG;

	ret = SR_OK;

	if (!cg) {
		/* No channel group: global options. */
		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;
		default:
			return SR_ERR_NA;
		}
	} else {
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
			break;
		case SR_CONF_CURRENT_LIMIT:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
			/* Min, max, step. */
			g_variant_builder_add_value(&gvb, g_variant_new_double(0.0));
			g_variant_builder_add_value(&gvb, g_variant_new_double(6.0));
			g_variant_builder_add_value(&gvb, g_variant_new_double(0.001)); /* 1mA steps */
			*data = g_variant_builder_end(&gvb);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return ret;
}

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;
	int ret;
	float fvalue;

	(void)cg;

	devc = sdi->priv;

	/*
	 * These features/keys are not supported by the hardware:
	 *  - SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE
	 *  - SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD
	 *  - SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE
	 *  - SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD
	 *  - SR_CONF_ENABLED (state cannot be queried, only set)
	 */

	ret = SR_OK;
	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
	case SR_CONF_LIMIT_MSEC:
		return sr_sw_limits_config_get(&devc->limits, key, data);
	case SR_CONF_REGULATION:
		*data = g_variant_new_string("CC"); /* Always CC mode. */
		break;
	case SR_CONF_VOLTAGE:
		if (reloadpro_get_voltage_current(sdi, &fvalue, NULL) < 0)
			return SR_ERR;
		*data = g_variant_new_double(fvalue);
		break;
	case SR_CONF_CURRENT:
		if (reloadpro_get_voltage_current(sdi, NULL, &fvalue) < 0)
			return SR_ERR;
		*data = g_variant_new_double(fvalue);
		break;
	case SR_CONF_CURRENT_LIMIT:
		if (reloadpro_get_current_limit(sdi, &fvalue) == SR_OK)
			*data = g_variant_new_double(fvalue);
		break;
	case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
		*data = g_variant_new_boolean(TRUE); /* Always on. */
		break;
	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
		*data = g_variant_new_boolean(TRUE); /* Always on. */
		break;
	case SR_CONF_OVER_TEMPERATURE_PROTECTION:
		*data = g_variant_new_boolean(TRUE); /* Always on. */
		break;
	case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
		*data = g_variant_new_boolean(devc->otp_active);
		break;
	case SR_CONF_UNDER_VOLTAGE_CONDITION:
		*data = g_variant_new_boolean(TRUE); /* Always on. */
		break;
	case SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE:
		*data = g_variant_new_boolean(devc->uvc_active);
		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;
	int ret;

	(void)cg;

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

	devc = sdi->priv;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
	case SR_CONF_LIMIT_MSEC:
		return sr_sw_limits_config_set(&devc->limits, key, data);
	case SR_CONF_ENABLED:
		ret = reloadpro_set_on_off(sdi, g_variant_get_boolean(data));
		break;
	case SR_CONF_CURRENT_LIMIT:
		ret = reloadpro_set_current_limit(sdi,
			g_variant_get_double(data));
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

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

	devc = sdi->priv;
	serial = sdi->conn;

	/* Send the 'monitor <ms>' command (doesn't have a reply). */
	if ((ret = serial_write_blocking(serial, CMD_MONITOR,
			strlen(CMD_MONITOR), serial_timeout(serial,
			strlen(CMD_MONITOR)))) < (int)strlen(CMD_MONITOR)) {
		sr_err("Unable to send 'monitor' command: %d.", ret);
		return SR_ERR;
	}

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

	sr_sw_limits_acquisition_start(&devc->limits);
	std_session_send_df_header(sdi);

	memset(devc->buf, 0, RELOADPRO_BUFSIZE);
	devc->buflen = 0;

	return SR_OK;
}

static struct sr_dev_driver arachnid_labs_re_load_pro_driver_info = {
	.name = "arachnid-labs-re-load-pro",
	.longname = "Arachnid Labs Re:load Pro",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.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(arachnid_labs_re_load_pro_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2015-2016 Uwe Hermann <uwe@hermann-uwe.de>
	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 2 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 "115200/8n1"
	25
	26	#define CMD_VERSION "version\r\n"
	27	#define CMD_MONITOR "monitor 200\r\n"
	28
	29	static const uint32_t scanopts[] = {
	30	SR_CONF_CONN,
	31	SR_CONF_SERIALCOMM,
	32	};
	33
	34	static const uint32_t drvopts[] = {
	35	SR_CONF_ELECTRONIC_LOAD,
	36	};
	37
	38	static const uint32_t devopts[] = {
	39	SR_CONF_CONTINUOUS,
	40	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	41	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
	42	};
	43
	44	static const uint32_t devopts_cg[] = {
	45	SR_CONF_ENABLED \| SR_CONF_SET,
	46	SR_CONF_REGULATION \| SR_CONF_GET,
	47	SR_CONF_VOLTAGE \| SR_CONF_GET,
	48	SR_CONF_CURRENT \| SR_CONF_GET,
	49	SR_CONF_CURRENT_LIMIT \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	50	SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED \| SR_CONF_GET,
	51	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED \| SR_CONF_GET,
	52	SR_CONF_OVER_TEMPERATURE_PROTECTION \| SR_CONF_GET,
	53	SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE \| SR_CONF_GET,
	54	SR_CONF_UNDER_VOLTAGE_CONDITION \| SR_CONF_GET,
	55	SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE \| SR_CONF_GET,
	56	};
	57
	58	static GSList scan(struct sr_dev_driver di, GSList *options)
	59	{
	60	struct sr_dev_inst *sdi;
	61	struct dev_context *devc;
	62	struct sr_config *src;
	63	struct sr_serial_dev_inst *serial;
	64	struct sr_channel_group *cg;
	65	struct sr_channel *ch;
	66	GSList *l;
	67	int ret, len;
	68	const char conn, serialcomm;
	69	char buf[100];
	70	char *bufptr;
	71	double version;
	72
	73	conn = serialcomm = NULL;
	74	for (l = options; l; l = l->next) {
	75	src = l->data;
	76	switch (src->key) {
	77	case SR_CONF_CONN:
	78	conn = g_variant_get_string(src->data, NULL);
	79	break;
	80	case SR_CONF_SERIALCOMM:
	81	serialcomm = g_variant_get_string(src->data, NULL);
	82	break;
	83	}
	84	}
	85	if (!conn)
	86	return NULL;
	87	if (!serialcomm)
	88	serialcomm = SERIALCOMM;
	89
	90	serial = sr_serial_dev_inst_new(conn, serialcomm);
	91
	92	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	93	return NULL;
	94
	95	serial_flush(serial);
	96
	97	if (serial_write_blocking(serial, CMD_VERSION,
	98	strlen(CMD_VERSION), serial_timeout(serial,
	99	strlen(CMD_VERSION))) < (int)strlen(CMD_VERSION)) {
	100	sr_dbg("Unable to write while probing for hardware.");
	101	serial_close(serial);
	102	return NULL;
	103	}
	104
	105	memset(buf, 0, sizeof(buf));
	106	bufptr = buf;
	107	len = sizeof(buf);
	108	ret = serial_readline(serial, &bufptr, &len, 3000);
	109
	110	if (ret < 0 \|\| len < 9 \|\| strncmp((const char *)&buf, "version ", 8)) {
	111	sr_dbg("Unable to probe version number.");
	112	serial_close(serial);
	113	return NULL;
	114	}
	115
	116	version = g_ascii_strtod(buf + 8, NULL);
	117	if (version < 1.10) {
	118	sr_info("Firmware >= 1.10 required (got %1.2f).", version);
	119	serial_close(serial);
	120	return NULL;
	121	}
	122
	123	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	124	sdi->status = SR_ST_INACTIVE;
	125	sdi->vendor = g_strdup("Arachnid Labs");
	126	sdi->model = g_strdup("Re:load Pro");
	127	sdi->version = g_strdup(buf + 8);
	128	sdi->inst_type = SR_INST_SERIAL;
	129	sdi->conn = serial;
	130
	131	cg = g_malloc0(sizeof(struct sr_channel_group));
	132	cg->name = g_strdup("1");
	133	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
	134
	135	ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "V");
	136	cg->channels = g_slist_append(cg->channels, ch);
	137
	138	ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "I");
	139	cg->channels = g_slist_append(cg->channels, ch);
	140
	141	devc = g_malloc0(sizeof(struct dev_context));
	142	sr_sw_limits_init(&devc->limits);
	143	sdi->priv = devc;
	144
	145	serial_close(serial);
	146
	147	return std_scan_complete(di, g_slist_append(NULL, sdi));
	148	}
	149
	150	static int config_list(uint32_t key, GVariant **data,
	151	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	152	{
	153	GVariantBuilder gvb;
	154	int ret;
	155
	156	/* Always available. */
	157	if (key == SR_CONF_SCAN_OPTIONS) {
	158	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	159	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	160	return SR_OK;
	161	}
	162
	163	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
	164	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	165	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
	166	return SR_OK;
	167	}
	168
	169	if (!sdi)
	170	return SR_ERR_ARG;
	171
	172	ret = SR_OK;
	173
	174	if (!cg) {
	175	/* No channel group: global options. */
	176	switch (key) {
	177	case SR_CONF_DEVICE_OPTIONS:
	178	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	179	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	180	break;
	181	default:
	182	return SR_ERR_NA;
	183	}
	184	} else {
	185	switch (key) {
	186	case SR_CONF_DEVICE_OPTIONS:
	187	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	188	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
	189	break;
	190	case SR_CONF_CURRENT_LIMIT:
	191	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	192	/* Min, max, step. */
	193	g_variant_builder_add_value(&gvb, g_variant_new_double(0.0));
	194	g_variant_builder_add_value(&gvb, g_variant_new_double(6.0));
	195	g_variant_builder_add_value(&gvb, g_variant_new_double(0.001)); /* 1mA steps */
	196	*data = g_variant_builder_end(&gvb);
	197	break;
	198	default:
	199	return SR_ERR_NA;
	200	}
	201	}
	202
	203	return ret;
	204	}
	205
	206	static int config_get(uint32_t key, GVariant **data,
	207	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	208	{
	209	struct dev_context *devc;
	210	int ret;
	211	float fvalue;
	212
	213	(void)cg;
	214
	215	devc = sdi->priv;
	216
	217	/*
	218	* These features/keys are not supported by the hardware:
	219	* - SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE
	220	* - SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD
	221	* - SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE
	222	* - SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD
	223	* - SR_CONF_ENABLED (state cannot be queried, only set)
	224	*/
	225
	226	ret = SR_OK;
	227	switch (key) {
	228	case SR_CONF_LIMIT_SAMPLES:
	229	case SR_CONF_LIMIT_MSEC:
	230	return sr_sw_limits_config_get(&devc->limits, key, data);
	231	case SR_CONF_REGULATION:
	232	data = g_variant_new_string("CC"); / Always CC mode. */
	233	break;
	234	case SR_CONF_VOLTAGE:
	235	if (reloadpro_get_voltage_current(sdi, &fvalue, NULL) < 0)
	236	return SR_ERR;
	237	*data = g_variant_new_double(fvalue);
	238	break;
	239	case SR_CONF_CURRENT:
	240	if (reloadpro_get_voltage_current(sdi, NULL, &fvalue) < 0)
	241	return SR_ERR;
	242	*data = g_variant_new_double(fvalue);
	243	break;
	244	case SR_CONF_CURRENT_LIMIT:
	245	if (reloadpro_get_current_limit(sdi, &fvalue) == SR_OK)
	246	*data = g_variant_new_double(fvalue);
	247	break;
	248	case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
	249	data = g_variant_new_boolean(TRUE); / Always on. */
	250	break;
	251	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
	252	data = g_variant_new_boolean(TRUE); / Always on. */
	253	break;
	254	case SR_CONF_OVER_TEMPERATURE_PROTECTION:
	255	data = g_variant_new_boolean(TRUE); / Always on. */
	256	break;
	257	case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
	258	*data = g_variant_new_boolean(devc->otp_active);
	259	break;
	260	case SR_CONF_UNDER_VOLTAGE_CONDITION:
	261	data = g_variant_new_boolean(TRUE); / Always on. */
	262	break;
	263	case SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE:
	264	*data = g_variant_new_boolean(devc->uvc_active);
	265	break;
	266	default:
	267	return SR_ERR_NA;
	268	}
	269
	270	return ret;
	271	}
	272
	273	static int config_set(uint32_t key, GVariant *data,
	274	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	275	{
	276	struct dev_context *devc;
	277	int ret;
	278
	279	(void)cg;
	280
	281	if (sdi->status != SR_ST_ACTIVE)
	282	return SR_ERR_DEV_CLOSED;
	283
	284	devc = sdi->priv;
	285
	286	ret = SR_OK;
	287	switch (key) {
	288	case SR_CONF_LIMIT_SAMPLES:
	289	case SR_CONF_LIMIT_MSEC:
	290	return sr_sw_limits_config_set(&devc->limits, key, data);
	291	case SR_CONF_ENABLED:
	292	ret = reloadpro_set_on_off(sdi, g_variant_get_boolean(data));
	293	break;
	294	case SR_CONF_CURRENT_LIMIT:
	295	ret = reloadpro_set_current_limit(sdi,
	296	g_variant_get_double(data));
	297	break;
	298	default:
	299	ret = SR_ERR_NA;
	300	}
	301
	302	return ret;
	303	}
	304
	305	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	306	{
	307	int ret;
	308	struct dev_context *devc;
	309	struct sr_serial_dev_inst *serial;
	310
	311	devc = sdi->priv;
	312	serial = sdi->conn;
	313
	314	/* Send the 'monitor <ms>' command (doesn't have a reply). */
	315	if ((ret = serial_write_blocking(serial, CMD_MONITOR,
	316	strlen(CMD_MONITOR), serial_timeout(serial,
	317	strlen(CMD_MONITOR)))) < (int)strlen(CMD_MONITOR)) {
	318	sr_err("Unable to send 'monitor' command: %d.", ret);
	319	return SR_ERR;
	320	}
	321
	322	/* Poll every 100ms, or whenever some data comes in. */
	323	serial_source_add(sdi->session, serial, G_IO_IN, 100,
	324	reloadpro_receive_data, (void *)sdi);
	325
	326	sr_sw_limits_acquisition_start(&devc->limits);
	327	std_session_send_df_header(sdi);
	328
	329	memset(devc->buf, 0, RELOADPRO_BUFSIZE);
	330	devc->buflen = 0;
	331
	332	return SR_OK;
	333	}
	334
	335	static struct sr_dev_driver arachnid_labs_re_load_pro_driver_info = {
	336	.name = "arachnid-labs-re-load-pro",
	337	.longname = "Arachnid Labs Re:load Pro",
	338	.api_version = 1,
	339	.init = std_init,
	340	.cleanup = std_cleanup,
	341	.scan = scan,
	342	.dev_list = std_dev_list,
	343	.config_get = config_get,
	344	.config_set = config_set,
	345	.config_list = config_list,
	346	.dev_open = std_serial_dev_open,
	347	.dev_close = std_serial_dev_close,
	348	.dev_acquisition_start = dev_acquisition_start,
	349	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	350	.context = NULL,
	351	};
	352	SR_REGISTER_DEV_DRIVER(arachnid_labs_re_load_pro_driver_info);