[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"
#define CMD_MONITOR_STOP "monitor 0\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);

	/*
	 * First stop potentially running monitoring and wait for 50ms before
	 * next command can be sent.
	 */
	if (serial_write_blocking(serial, CMD_MONITOR_STOP,
			strlen(CMD_MONITOR_STOP), serial_timeout(serial,
			strlen(CMD_MONITOR_STOP))) < (int)strlen(CMD_MONITOR_STOP)) {
		sr_dbg("Unable to write while probing for hardware.");
		serial_close(serial);
		return NULL;
	}
	g_usleep(50 * 1000);

	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)
{
	if (!cg) {
		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	} else {
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
			break;
		case SR_CONF_CURRENT_LIMIT:
			*data = std_gvar_min_max_step(0.0, 6.0, 0.001);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return SR_OK;
}

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;
	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)
	 */

	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 SR_OK;
}

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;

	(void)cg;

	devc = sdi->priv;

	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:
		return reloadpro_set_on_off(sdi, g_variant_get_boolean(data));
	case SR_CONF_CURRENT_LIMIT:
		return reloadpro_set_current_limit(sdi, g_variant_get_double(data));
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	if (serial_write_blocking(sdi->conn, CMD_MONITOR_STOP,
			strlen(CMD_MONITOR_STOP), serial_timeout(sdi->conn,
			strlen(CMD_MONITOR_STOP))) < (int)strlen(CMD_MONITOR_STOP)) {
		sr_dbg("Unable to stop monitoring.");
	}

	return std_serial_dev_close(sdi);
}

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;
	devc->acquisition_running = TRUE;

	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;
	}

	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 int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;
	devc->acquisition_running = FALSE;

	return std_serial_dev_acquisition_stop(sdi);
}

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,
	.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 = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = 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	#define CMD_MONITOR_STOP "monitor 0\r\n"
	29
	30	static const uint32_t scanopts[] = {
	31	SR_CONF_CONN,
	32	SR_CONF_SERIALCOMM,
	33	};
	34
	35	static const uint32_t drvopts[] = {
	36	SR_CONF_ELECTRONIC_LOAD,
	37	};
	38
	39	static const uint32_t devopts[] = {
	40	SR_CONF_CONTINUOUS,
	41	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	42	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
	43	};
	44
	45	static const uint32_t devopts_cg[] = {
	46	SR_CONF_ENABLED \| SR_CONF_SET,
	47	SR_CONF_REGULATION \| SR_CONF_GET,
	48	SR_CONF_VOLTAGE \| SR_CONF_GET,
	49	SR_CONF_CURRENT \| SR_CONF_GET,
	50	SR_CONF_CURRENT_LIMIT \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	51	SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED \| SR_CONF_GET,
	52	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED \| SR_CONF_GET,
	53	SR_CONF_OVER_TEMPERATURE_PROTECTION \| SR_CONF_GET,
	54	SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE \| SR_CONF_GET,
	55	SR_CONF_UNDER_VOLTAGE_CONDITION \| SR_CONF_GET,
	56	SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE \| SR_CONF_GET,
	57	};
	58
	59	static GSList scan(struct sr_dev_driver di, GSList *options)
	60	{
	61	struct sr_dev_inst *sdi;
	62	struct dev_context *devc;
	63	struct sr_config *src;
	64	struct sr_serial_dev_inst *serial;
	65	struct sr_channel_group *cg;
	66	struct sr_channel *ch;
	67	GSList *l;
	68	int ret, len;
	69	const char conn, serialcomm;
	70	char buf[100];
	71	char *bufptr;
	72	double version;
	73
	74	conn = serialcomm = NULL;
	75	for (l = options; l; l = l->next) {
	76	src = l->data;
	77	switch (src->key) {
	78	case SR_CONF_CONN:
	79	conn = g_variant_get_string(src->data, NULL);
	80	break;
	81	case SR_CONF_SERIALCOMM:
	82	serialcomm = g_variant_get_string(src->data, NULL);
	83	break;
	84	}
	85	}
	86	if (!conn)
	87	return NULL;
	88	if (!serialcomm)
	89	serialcomm = SERIALCOMM;
	90
	91	serial = sr_serial_dev_inst_new(conn, serialcomm);
	92
	93	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	94	return NULL;
	95
	96	serial_flush(serial);
	97
	98	/*
	99	* First stop potentially running monitoring and wait for 50ms before
	100	* next command can be sent.
	101	*/
	102	if (serial_write_blocking(serial, CMD_MONITOR_STOP,
	103	strlen(CMD_MONITOR_STOP), serial_timeout(serial,
	104	strlen(CMD_MONITOR_STOP))) < (int)strlen(CMD_MONITOR_STOP)) {
	105	sr_dbg("Unable to write while probing for hardware.");
	106	serial_close(serial);
	107	return NULL;
	108	}
	109	g_usleep(50 * 1000);
	110
	111	if (serial_write_blocking(serial, CMD_VERSION,
	112	strlen(CMD_VERSION), serial_timeout(serial,
	113	strlen(CMD_VERSION))) < (int)strlen(CMD_VERSION)) {
	114	sr_dbg("Unable to write while probing for hardware.");
	115	serial_close(serial);
	116	return NULL;
	117	}
	118
	119	memset(buf, 0, sizeof(buf));
	120	bufptr = buf;
	121	len = sizeof(buf);
	122	ret = serial_readline(serial, &bufptr, &len, 3000);
	123
	124	if (ret < 0 \|\| len < 9 \|\| strncmp((const char *)&buf, "version ", 8)) {
	125	sr_dbg("Unable to probe version number.");
	126	serial_close(serial);
	127	return NULL;
	128	}
	129
	130	version = g_ascii_strtod(buf + 8, NULL);
	131	if (version < 1.10) {
	132	sr_info("Firmware >= 1.10 required (got %1.2f).", version);
	133	serial_close(serial);
	134	return NULL;
	135	}
	136
	137	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	138	sdi->status = SR_ST_INACTIVE;
	139	sdi->vendor = g_strdup("Arachnid Labs");
	140	sdi->model = g_strdup("Re:load Pro");
	141	sdi->version = g_strdup(buf + 8);
	142	sdi->inst_type = SR_INST_SERIAL;
	143	sdi->conn = serial;
	144
	145	cg = g_malloc0(sizeof(struct sr_channel_group));
	146	cg->name = g_strdup("1");
	147	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
	148
	149	ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "V");
	150	cg->channels = g_slist_append(cg->channels, ch);
	151
	152	ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "I");
	153	cg->channels = g_slist_append(cg->channels, ch);
	154
	155	devc = g_malloc0(sizeof(struct dev_context));
	156	sr_sw_limits_init(&devc->limits);
	157	sdi->priv = devc;
	158
	159	serial_close(serial);
	160
	161	return std_scan_complete(di, g_slist_append(NULL, sdi));
	162	}
	163
	164	static int config_list(uint32_t key, GVariant **data,
	165	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	166	{
	167	if (!cg) {
	168	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	169	} else {
	170	switch (key) {
	171	case SR_CONF_DEVICE_OPTIONS:
	172	*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
	173	break;
	174	case SR_CONF_CURRENT_LIMIT:
	175	*data = std_gvar_min_max_step(0.0, 6.0, 0.001);
	176	break;
	177	default:
	178	return SR_ERR_NA;
	179	}
	180	}
	181
	182	return SR_OK;
	183	}
	184
	185	static int config_get(uint32_t key, GVariant **data,
	186	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	187	{
	188	struct dev_context *devc;
	189	float fvalue;
	190
	191	(void)cg;
	192
	193	devc = sdi->priv;
	194
	195	/*
	196	* These features/keys are not supported by the hardware:
	197	* - SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE
	198	* - SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD
	199	* - SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE
	200	* - SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD
	201	* - SR_CONF_ENABLED (state cannot be queried, only set)
	202	*/
	203
	204	switch (key) {
	205	case SR_CONF_LIMIT_SAMPLES:
	206	case SR_CONF_LIMIT_MSEC:
	207	return sr_sw_limits_config_get(&devc->limits, key, data);
	208	case SR_CONF_REGULATION:
	209	data = g_variant_new_string("CC"); / Always CC mode. */
	210	break;
	211	case SR_CONF_VOLTAGE:
	212	if (reloadpro_get_voltage_current(sdi, &fvalue, NULL) < 0)
	213	return SR_ERR;
	214	*data = g_variant_new_double(fvalue);
	215	break;
	216	case SR_CONF_CURRENT:
	217	if (reloadpro_get_voltage_current(sdi, NULL, &fvalue) < 0)
	218	return SR_ERR;
	219	*data = g_variant_new_double(fvalue);
	220	break;
	221	case SR_CONF_CURRENT_LIMIT:
	222	if (reloadpro_get_current_limit(sdi, &fvalue) == SR_OK)
	223	*data = g_variant_new_double(fvalue);
	224	break;
	225	case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
	226	data = g_variant_new_boolean(TRUE); / Always on. */
	227	break;
	228	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
	229	data = g_variant_new_boolean(TRUE); / Always on. */
	230	break;
	231	case SR_CONF_OVER_TEMPERATURE_PROTECTION:
	232	data = g_variant_new_boolean(TRUE); / Always on. */
	233	break;
	234	case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
	235	*data = g_variant_new_boolean(devc->otp_active);
	236	break;
	237	case SR_CONF_UNDER_VOLTAGE_CONDITION:
	238	data = g_variant_new_boolean(TRUE); / Always on. */
	239	break;
	240	case SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE:
	241	*data = g_variant_new_boolean(devc->uvc_active);
	242	break;
	243	default:
	244	return SR_ERR_NA;
	245	}
	246
	247	return SR_OK;
	248	}
	249
	250	static int config_set(uint32_t key, GVariant *data,
	251	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	252	{
	253	struct dev_context *devc;
	254
	255	(void)cg;
	256
	257	devc = sdi->priv;
	258
	259	switch (key) {
	260	case SR_CONF_LIMIT_SAMPLES:
	261	case SR_CONF_LIMIT_MSEC:
	262	return sr_sw_limits_config_set(&devc->limits, key, data);
	263	case SR_CONF_ENABLED:
	264	return reloadpro_set_on_off(sdi, g_variant_get_boolean(data));
	265	case SR_CONF_CURRENT_LIMIT:
	266	return reloadpro_set_current_limit(sdi, g_variant_get_double(data));
	267	default:
	268	return SR_ERR_NA;
	269	}
	270
	271	return SR_OK;
	272	}
	273
	274	static int dev_close(struct sr_dev_inst *sdi)
	275	{
	276	if (serial_write_blocking(sdi->conn, CMD_MONITOR_STOP,
	277	strlen(CMD_MONITOR_STOP), serial_timeout(sdi->conn,
	278	strlen(CMD_MONITOR_STOP))) < (int)strlen(CMD_MONITOR_STOP)) {
	279	sr_dbg("Unable to stop monitoring.");
	280	}
	281
	282	return std_serial_dev_close(sdi);
	283	}
	284
	285	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	286	{
	287	int ret;
	288	struct dev_context *devc;
	289	struct sr_serial_dev_inst *serial;
	290
	291	devc = sdi->priv;
	292	devc->acquisition_running = TRUE;
	293
	294	serial = sdi->conn;
	295
	296	/* Send the 'monitor <ms>' command (doesn't have a reply). */
	297	if ((ret = serial_write_blocking(serial, CMD_MONITOR,
	298	strlen(CMD_MONITOR), serial_timeout(serial,
	299	strlen(CMD_MONITOR)))) < (int)strlen(CMD_MONITOR)) {
	300	sr_err("Unable to send 'monitor' command: %d.", ret);
	301	return SR_ERR;
	302	}
	303
	304	serial_source_add(sdi->session, serial, G_IO_IN, 100,
	305	reloadpro_receive_data, (void *)sdi);
	306
	307	sr_sw_limits_acquisition_start(&devc->limits);
	308	std_session_send_df_header(sdi);
	309
	310	memset(devc->buf, 0, RELOADPRO_BUFSIZE);
	311	devc->buflen = 0;
	312
	313	return SR_OK;
	314	}
	315
	316	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	317	{
	318	struct dev_context *devc;
	319
	320	devc = sdi->priv;
	321	devc->acquisition_running = FALSE;
	322
	323	return std_serial_dev_acquisition_stop(sdi);
	324	}
	325
	326	static struct sr_dev_driver arachnid_labs_re_load_pro_driver_info = {
	327	.name = "arachnid-labs-re-load-pro",
	328	.longname = "Arachnid Labs Re:load Pro",
	329	.api_version = 1,
	330	.init = std_init,
	331	.cleanup = std_cleanup,
	332	.scan = scan,
	333	.dev_list = std_dev_list,
	334	.dev_clear = std_dev_clear,
	335	.config_get = config_get,
	336	.config_set = config_set,
	337	.config_list = config_list,
	338	.dev_open = std_serial_dev_open,
	339	.dev_close = dev_close,
	340	.dev_acquisition_start = dev_acquisition_start,
	341	.dev_acquisition_stop = dev_acquisition_stop,
	342	.context = NULL,
	343	};
	344	SR_REGISTER_DEV_DRIVER(arachnid_labs_re_load_pro_driver_info);