[libsigrok.git] / src / hardware / norma-dmm / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
 *
 * 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/>.
 */

/** @file
 *  Norma DM9x0/Siemens B102x DMMs driver.
 *  @internal
 */

#include "protocol.h"

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

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

#define BUF_MAX 50

#define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1"

SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
SR_PRIV struct sr_dev_driver siemens_b102x_driver_info;

static const char* get_brandstr(struct sr_dev_driver* drv)
{
	if (drv == &norma_dmm_driver_info)
		return "Norma";
	else
		return "Siemens";
}

static const char* get_typestr(int type, struct sr_dev_driver* drv)
{
	static const char* nameref[5][2] = {
		{"DM910", "B1024"},
		{"DM920", "B1025"},
		{"DM930", "B1026"},
		{"DM940", "B1027"},
		{"DM950", "B1028"}};

	if ((type < 1) || (type > 5))
		return "Unknown type!";

	return nameref[type-1][(drv == &siemens_b102x_driver_info)];
}

static int init_norma_dmm(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, &norma_dmm_driver_info, LOG_PREFIX);
}

static int init_siemens_b102x(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, &siemens_b102x_driver_info, LOG_PREFIX);
}

static GSList *do_scan(struct sr_dev_driver* drv, GSList *options)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_serial_dev_inst *serial;
	GSList *l, *devices;
	int len, cnt;
	const char *conn, *serialcomm;
	char *buf;
	char req[10];
	int auxtype;

	devices = NULL;
	drvc = drv->priv;
	drvc->instances = NULL;
	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 (!(buf = g_try_malloc(BUF_MAX))) {
		sr_err("Serial buffer malloc failed.");
		return NULL;
	}

	snprintf(req, sizeof(req), "%s\r\n",
		 nmadmm_requests[NMADMM_REQ_IDN].req_str);
	g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */
	for (cnt = 0; cnt < 7; cnt++) {
		if (serial_write_blocking(serial, req, strlen(req), 0) < 0) {
			sr_err("Unable to send identification request.");
			return NULL;
		}
		len = BUF_MAX;
		serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS);
		if (!len)
			continue;
		buf[BUF_MAX - 1] = '\0';

		/* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950) */
		if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) {
			auxtype = xgittoint(buf[7]);
			sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9);

			sdi = g_malloc0(sizeof(struct sr_dev_inst));
			sdi->status = SR_ST_INACTIVE;
			sdi->vendor = g_strdup(get_brandstr(drv));
			sdi->model = g_strdup(get_typestr(auxtype, drv));
			sdi->version = g_strdup(buf + 9);
			devc = g_malloc0(sizeof(struct dev_context));
			devc->type = auxtype;
			devc->version = g_strdup(&buf[9]);
			devc->elapsed_msec = g_timer_new();
			sdi->conn = serial;
			sdi->priv = devc;
			sdi->driver = drv;
			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
			drvc->instances = g_slist_append(drvc->instances, sdi);
			devices = g_slist_append(devices, sdi);
			break;
		}

		/*
		 * The interface of the DM9x0 contains a cap that needs to
		 * charge for up to 10s before the interface works, if not
		 * powered externally. Therefore wait a little to improve
		 * chances.
		 */
		if (cnt == 3) {
			sr_info("Waiting 5s to allow interface to settle.");
			g_usleep(5 * 1000 * 1000);
		}
	}

	g_free(buf);

	serial_close(serial);
	if (!devices)
		sr_serial_dev_inst_free(serial);

	return devices;
}

static GSList *scan_norma_dmm(GSList *options)
{
	return do_scan(&norma_dmm_driver_info, options);
}

static GSList *scan_siemens_b102x(GSList *options)
{
	return do_scan(&siemens_b102x_driver_info, options);
}

static GSList *dev_list_norma_dmm(void)
{
	return ((struct drv_context *)(norma_dmm_driver_info.priv))->instances;
}

static GSList *dev_list_siemens_b102x(void)
{
	return ((struct drv_context *)(siemens_b102x_driver_info.priv))->instances;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	std_serial_dev_close(sdi);

	/* Free dynamically allocated resources. */
	if ((devc = sdi->priv) && devc->version) {
		g_free(devc->version);
		devc->version = NULL;
		g_timer_destroy(devc->elapsed_msec);
	}

	return SR_OK;
}

static int cleanup_norma_dmm(void)
{
	return std_dev_clear(&norma_dmm_driver_info, NULL);
}

static int cleanup_siemens_b102x(void)
{
	return std_dev_clear(&siemens_b102x_driver_info, NULL);
}

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;

	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;
	}

	switch (key) {
	case SR_CONF_LIMIT_MSEC:
		if (g_variant_get_uint64(data) == 0) {
			sr_err("LIMIT_MSEC can't be 0.");
			return SR_ERR;
		}
		devc->limit_msec = g_variant_get_uint64(data);
		sr_dbg("Setting time limit to %" PRIu64 "ms.",
		       devc->limit_msec);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		devc->limit_samples = g_variant_get_uint64(data);
		sr_dbg("Setting sample limit to %" PRIu64 ".",
		       devc->limit_samples);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

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

	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,
				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

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 || !cb_data || !(devc = sdi->priv))
		return SR_ERR_BUG;

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

	devc->cb_data = cb_data;

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

	/* Start timer, if required. */
	if (devc->limit_msec)
		g_timer_start(devc->elapsed_msec);

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

	return SR_OK;
}

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

	/* Stop timer, if required. */
	if (sdi && (devc = sdi->priv) && devc->limit_msec)
		g_timer_stop(devc->elapsed_msec);

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

SR_PRIV struct sr_dev_driver norma_dmm_driver_info = {
	.name = "norma-dmm",
	.longname = "Norma DM9x0 DMMs",
	.api_version = 1,
	.init = init_norma_dmm,
	.cleanup = cleanup_norma_dmm,
	.scan = scan_norma_dmm,
	.dev_list = dev_list_norma_dmm,
	.dev_clear = NULL,
	.config_get = NULL,
	.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,
	.priv = NULL,
};


SR_PRIV struct sr_dev_driver siemens_b102x_driver_info = {
	.name = "siemens-b102x",
	.longname = "Siemens B102x DMMs",
	.api_version = 1,
	.init = init_siemens_b102x,
	.cleanup = cleanup_siemens_b102x,
	.scan = scan_siemens_b102x,
	.dev_list = dev_list_siemens_b102x,
	.dev_clear = NULL,
	.config_get = NULL,
	.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,
	.priv = NULL,
};
Commit	Line	Data
bfd48770 MH	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
	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
a4e435eb MH	20	/** @file
	21	* Norma DM9x0/Siemens B102x DMMs driver.
	22	* @internal
	23	*/
	24
bfd48770 MH	25	#include "protocol.h"
bfd48770 MH	26
a0e0bb41	27	static const uint32_t scanopts[] = {
f8e76e2e MH	28	SR_CONF_CONN,
	29	SR_CONF_SERIALCOMM,
	30	};
	31
f254bc4b	32	static const uint32_t devopts[] = {
f8e76e2e	33	SR_CONF_MULTIMETER,
f8e76e2e	34	SR_CONF_CONTINUOUS,
5827f61b BV	35	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
5827f61b BV	36	SR_CONF_LIMIT_MSEC \| SR_CONF_SET,
f8e76e2e MH	37	};
f8e76e2e MH	38
e790bd5c	39	#define BUF_MAX 50
f8e76e2e MH	40
	41	#define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1"
	42
bfd48770	43	SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
49c06128	44	SR_PRIV struct sr_dev_driver siemens_b102x_driver_info;
bfd48770	45
49c06128	46	static const char* get_brandstr(struct sr_dev_driver* drv)
bfd48770	47	{
49c06128 MH	48	if (drv == &norma_dmm_driver_info)
	49	return "Norma";
	50	else
	51	return "Siemens";
bfd48770 MH	52	}
bfd48770 MH	53
49c06128 MH	54	static const char* get_typestr(int type, struct sr_dev_driver* drv)
	55	{
	56	static const char* nameref[5][2] = {
	57	{"DM910", "B1024"},
	58	{"DM920", "B1025"},
	59	{"DM930", "B1026"},
	60	{"DM940", "B1027"},
	61	{"DM950", "B1028"}};
	62
	63	if ((type < 1) \|\| (type > 5))
	64	return "Unknown type!";
	65
	66	return nameref[type-1][(drv == &siemens_b102x_driver_info)];
	67	}
	68
	69	static int init_norma_dmm(struct sr_context *sr_ctx)
	70	{
	71	return std_init(sr_ctx, &norma_dmm_driver_info, LOG_PREFIX);
	72	}
	73
	74	static int init_siemens_b102x(struct sr_context *sr_ctx)
	75	{
	76	return std_init(sr_ctx, &siemens_b102x_driver_info, LOG_PREFIX);
	77	}
	78
	79	static GSList do_scan(struct sr_dev_driver drv, GSList *options)
bfd48770	80	{
f8e76e2e	81	struct sr_dev_inst *sdi;
bfd48770	82	struct drv_context *drvc;
f8e76e2e MH	83	struct dev_context *devc;
f8e76e2e MH	84	struct sr_config *src;
f8e76e2e MH	85	struct sr_serial_dev_inst *serial;
	86	GSList l, devices;
	87	int len, cnt;
	88	const char conn, serialcomm;
	89	char *buf;
f8e76e2e MH	90	char req[10];
	91	int auxtype;
	92
bfd48770	93	devices = NULL;
49c06128	94	drvc = drv->priv;
bfd48770	95	drvc->instances = NULL;
f8e76e2e MH	96	conn = serialcomm = NULL;
	97
	98	for (l = options; l; l = l->next) {
	99	src = l->data;
	100	switch (src->key) {
	101	case SR_CONF_CONN:
	102	conn = g_variant_get_string(src->data, NULL);
	103	break;
	104	case SR_CONF_SERIALCOMM:
	105	serialcomm = g_variant_get_string(src->data, NULL);
	106	break;
	107	}
	108	}
	109	if (!conn)
	110	return NULL;
	111	if (!serialcomm)
	112	serialcomm = SERIALCOMM;
	113
91219afc	114	serial = sr_serial_dev_inst_new(conn, serialcomm);
f8e76e2e	115
d12ef776	116	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
f8e76e2e MH	117	return NULL;
	118
	119	serial_flush(serial);
bfd48770	120
e790bd5c	121	if (!(buf = g_try_malloc(BUF_MAX))) {
f8e76e2e MH	122	sr_err("Serial buffer malloc failed.");
	123	return NULL;
	124	}
	125
	126	snprintf(req, sizeof(req), "%s\r\n",
e790bd5c	127	nmadmm_requests[NMADMM_REQ_IDN].req_str);
a4e435eb	128	g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */
f8e76e2e	129	for (cnt = 0; cnt < 7; cnt++) {
eead2782	130	if (serial_write_blocking(serial, req, strlen(req), 0) < 0) {
8849f45a	131	sr_err("Unable to send identification request.");
f8e76e2e MH	132	return NULL;
	133	}
	134	len = BUF_MAX;
a4e435eb	135	serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS);
f8e76e2e MH	136	if (!len)
f8e76e2e MH	137	continue;
e790bd5c	138	buf[BUF_MAX - 1] = '\0';
f8e76e2e	139
e790bd5c UH	140	/* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950) */
e790bd5c UH	141	if (g_regex_match_simple("^1834 [^,],IF V", (char *)buf, 0, 0)) {
f8e76e2e	142	auxtype = xgittoint(buf[7]);
49c06128	143	sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9);
f8e76e2e	144
aac29cc1	145	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	146	sdi->status = SR_ST_INACTIVE;
	147	sdi->vendor = g_strdup(get_brandstr(drv));
	148	sdi->model = g_strdup(get_typestr(auxtype, drv));
	149	sdi->version = g_strdup(buf + 9);
f57d8ffe	150	devc = g_malloc0(sizeof(struct dev_context));
f8e76e2e MH	151	devc->type = auxtype;
	152	devc->version = g_strdup(&buf[9]);
	153	devc->elapsed_msec = g_timer_new();
f8e76e2e MH	154	sdi->conn = serial;
f8e76e2e MH	155	sdi->priv = devc;
49c06128	156	sdi->driver = drv;
5e23fcab	157	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
f8e76e2e MH	158	drvc->instances = g_slist_append(drvc->instances, sdi);
	159	devices = g_slist_append(devices, sdi);
	160	break;
	161	}
e790bd5c UH	162
	163	/*
	164	* The interface of the DM9x0 contains a cap that needs to
	165	* charge for up to 10s before the interface works, if not
	166	* powered externally. Therefore wait a little to improve
	167	* chances.
	168	*/
f8e76e2e MH	169	if (cnt == 3) {
	170	sr_info("Waiting 5s to allow interface to settle.");
	171	g_usleep(5 * 1000 * 1000);
	172	}
	173	}
	174
	175	g_free(buf);
	176
	177	serial_close(serial);
	178	if (!devices)
	179	sr_serial_dev_inst_free(serial);
bfd48770 MH	180
	181	return devices;
	182	}
	183
49c06128 MH	184	static GSList scan_norma_dmm(GSList options)
	185	{
	186	return do_scan(&norma_dmm_driver_info, options);
	187	}
	188
	189	static GSList scan_siemens_b102x(GSList options)
	190	{
	191	return do_scan(&siemens_b102x_driver_info, options);
	192	}
	193
	194	static GSList *dev_list_norma_dmm(void)
	195	{
	196	return ((struct drv_context *)(norma_dmm_driver_info.priv))->instances;
	197	}
	198
	199	static GSList *dev_list_siemens_b102x(void)
bfd48770	200	{
49c06128	201	return ((struct drv_context *)(siemens_b102x_driver_info.priv))->instances;
bfd48770 MH	202	}
bfd48770 MH	203
bfd48770 MH	204	static int dev_close(struct sr_dev_inst *sdi)
bfd48770 MH	205	{
f8e76e2e	206	struct dev_context *devc;
bfd48770	207
bf2c987f	208	std_serial_dev_close(sdi);
bfd48770	209
e790bd5c	210	/* Free dynamically allocated resources. */
f8e76e2e MH	211	if ((devc = sdi->priv) && devc->version) {
	212	g_free(devc->version);
	213	devc->version = NULL;
	214	g_timer_destroy(devc->elapsed_msec);
	215	}
bfd48770 MH	216
	217	return SR_OK;
	218	}
	219
49c06128 MH	220	static int cleanup_norma_dmm(void)
	221	{
	222	return std_dev_clear(&norma_dmm_driver_info, NULL);
	223	}
	224
	225	static int cleanup_siemens_b102x(void)
bfd48770	226	{
49c06128	227	return std_dev_clear(&siemens_b102x_driver_info, NULL);
bfd48770 MH	228	}
bfd48770 MH	229
584560f1	230	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	231	const struct sr_channel_group *cg)
bfd48770	232	{
f8e76e2e	233	struct dev_context *devc;
bfd48770	234
53b4680f	235	(void)cg;
d3c74a6f	236
bfd48770 MH	237	if (sdi->status != SR_ST_ACTIVE)
	238	return SR_ERR_DEV_CLOSED;
	239
f8e76e2e MH	240	if (!(devc = sdi->priv)) {
	241	sr_err("sdi->priv was NULL.");
	242	return SR_ERR_BUG;
	243	}
	244
bfd48770	245	switch (key) {
f8e76e2e	246	case SR_CONF_LIMIT_MSEC:
f8e76e2e MH	247	if (g_variant_get_uint64(data) == 0) {
	248	sr_err("LIMIT_MSEC can't be 0.");
	249	return SR_ERR;
	250	}
	251	devc->limit_msec = g_variant_get_uint64(data);
	252	sr_dbg("Setting time limit to %" PRIu64 "ms.",
	253	devc->limit_msec);
	254	break;
	255	case SR_CONF_LIMIT_SAMPLES:
	256	devc->limit_samples = g_variant_get_uint64(data);
	257	sr_dbg("Setting sample limit to %" PRIu64 ".",
	258	devc->limit_samples);
	259	break;
bfd48770	260	default:
f8e76e2e	261	return SR_ERR_NA;
bfd48770 MH	262	}
bfd48770 MH	263
f8e76e2e	264	return SR_OK;
bfd48770 MH	265	}
bfd48770 MH	266
584560f1	267	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	268	const struct sr_channel_group *cg)
bfd48770	269	{
bfd48770	270	(void)sdi;
53b4680f	271	(void)cg;
bfd48770	272
bfd48770	273	switch (key) {
f8e76e2e	274	case SR_CONF_SCAN_OPTIONS:
584560f1	275	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
a0e0bb41	276	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
f8e76e2e MH	277	break;
f8e76e2e MH	278	case SR_CONF_DEVICE_OPTIONS:
584560f1	279	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b	280	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
f8e76e2e	281	break;
bfd48770 MH	282	default:
	283	return SR_ERR_NA;
	284	}
	285
f8e76e2e	286	return SR_OK;
bfd48770 MH	287	}
	288
	289	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
	290	void *cb_data)
	291	{
f8e76e2e MH	292	struct dev_context *devc;
	293	struct sr_serial_dev_inst *serial;
	294
f8e76e2e MH	295	if (!sdi \|\| !cb_data \|\| !(devc = sdi->priv))
	296	return SR_ERR_BUG;
	297
bfd48770 MH	298	if (sdi->status != SR_ST_ACTIVE)
	299	return SR_ERR_DEV_CLOSED;
	300
f8e76e2e MH	301	devc->cb_data = cb_data;
	302
	303	/* Send header packet to the session bus. */
	304	std_session_send_df_header(cb_data, LOG_PREFIX);
	305
	306	/* Start timer, if required. */
	307	if (devc->limit_msec)
	308	g_timer_start(devc->elapsed_msec);
	309
	310	/* Poll every 100ms, or whenever some data comes in. */
	311	serial = sdi->conn;
102f1239 BV	312	serial_source_add(sdi->session, serial, G_IO_IN, 100,
102f1239 BV	313	norma_dmm_receive_data, (void *)sdi);
bfd48770 MH	314
	315	return SR_OK;
	316	}
	317
	318	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	319	{
f8e76e2e	320	struct dev_context *devc;
bfd48770	321
f8e76e2e MH	322	/* Stop timer, if required. */
	323	if (sdi && (devc = sdi->priv) && devc->limit_msec)
	324	g_timer_stop(devc->elapsed_msec);
bfd48770	325
d43b0908	326	return std_serial_dev_acquisition_stop(sdi, cb_data, dev_close,
f8e76e2e	327	sdi->conn, LOG_PREFIX);
bfd48770 MH	328	}
	329
	330	SR_PRIV struct sr_dev_driver norma_dmm_driver_info = {
	331	.name = "norma-dmm",
49c06128 MH	332	.longname = "Norma DM9x0 DMMs",
	333	.api_version = 1,
	334	.init = init_norma_dmm,
	335	.cleanup = cleanup_norma_dmm,
	336	.scan = scan_norma_dmm,
	337	.dev_list = dev_list_norma_dmm,
	338	.dev_clear = NULL,
	339	.config_get = NULL,
	340	.config_set = config_set,
	341	.config_list = config_list,
	342	.dev_open = std_serial_dev_open,
	343	.dev_close = dev_close,
	344	.dev_acquisition_start = dev_acquisition_start,
	345	.dev_acquisition_stop = dev_acquisition_stop,
	346	.priv = NULL,
	347	};
	348
	349
	350	SR_PRIV struct sr_dev_driver siemens_b102x_driver_info = {
	351	.name = "siemens-b102x",
	352	.longname = "Siemens B102x DMMs",
bfd48770	353	.api_version = 1,
49c06128 MH	354	.init = init_siemens_b102x,
	355	.cleanup = cleanup_siemens_b102x,
	356	.scan = scan_siemens_b102x,
	357	.dev_list = dev_list_siemens_b102x,
a6630742	358	.dev_clear = NULL,
f8e76e2e	359	.config_get = NULL,
bfd48770 MH	360	.config_set = config_set,
bfd48770 MH	361	.config_list = config_list,
854434de	362	.dev_open = std_serial_dev_open,
bfd48770 MH	363	.dev_close = dev_close,
	364	.dev_acquisition_start = dev_acquisition_start,
	365	.dev_acquisition_stop = dev_acquisition_stop,
	366	.priv = NULL,
	367	};