[libsigrok.git] / 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 <config.h>
#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(struct sr_dev_driver *di, struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static GSList *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->context;
	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);

	buf = g_malloc(BUF_MAX);

	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),
				serial_timeout(serial, strlen(req))) < 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 *dev_list(const struct sr_dev_driver *di)
{
	return ((struct drv_context *)(di->context))->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(const struct sr_dev_driver *di)
{
	return std_dev_clear(di, 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:
		devc->limit_msec = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		devc->limit_samples = g_variant_get_uint64(data);
		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,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = dev_list,
	.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,
	.context = NULL,
};

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