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

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012 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 <config.h>
#include <glib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#include "fluke-dmm.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,
};

SR_PRIV struct sr_dev_driver flukedmm_driver_info;

static const char *scan_conn[] = {
	/* 287/289 */
	"115200/8n1",
	/* 187/189 */
	"9600/8n1",
	/* Scopemeter 190 series */
	"1200/8n1",
	NULL
};

static const struct flukedmm_profile supported_flukedmm[] = {
	{ FLUKE_187, "187", 100, 1000 },
	{ FLUKE_189, "189", 100, 1000 },
	{ FLUKE_287, "287", 100, 1000 },
	{ FLUKE_190, "199B", 1000, 3500 },
	{ FLUKE_289, "289", 100, 1000 },
};

static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
{
	return std_init(di, sr_ctx);
}

static GSList *fluke_scan(struct sr_dev_driver *di, const char *conn,
		const char *serialcomm)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	GSList *devices;
	int retry, len, i, s;
	char buf[128], *b, **tokens;

	serial = sr_serial_dev_inst_new(conn, serialcomm);

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

	drvc = di->context;
	b = buf;
	retry = 0;
	devices = NULL;
	/* We'll try the discovery sequence three times in case the device
	 * is not in an idle state when we send ID. */
	while (!devices && retry < 3) {
		retry++;
		serial_flush(serial);
		if (serial_write_blocking(serial, "ID\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0) {
			sr_err("Unable to send ID string");
			continue;
		}

		/* Response is first a CMD_ACK byte (ASCII '0' for OK,
		 * or '1' to signify an error. */
		len = 128;
		serial_readline(serial, &b, &len, 150);
		if (len != 1)
			continue;
		if (buf[0] != '0')
			continue;

		/* If CMD_ACK was OK, ID string follows. */
		len = 128;
		serial_readline(serial, &b, &len, 850);
		if (len < 10)
			continue;
		if (strcspn(buf, ",") < 15)
			/* Looks like it's comma-separated. */
			tokens = g_strsplit(buf, ",", 3);
		else
			/* Fluke 199B, at least, uses semicolon. */
			tokens = g_strsplit(buf, ";", 3);
		if (!strncmp("FLUKE", tokens[0], 5)
				&& tokens[1] && tokens[2]) {
			for (i = 0; supported_flukedmm[i].model; i++) {
				if (strcmp(supported_flukedmm[i].modelname, tokens[0] + 6))
					continue;
				/* Skip leading spaces in version number. */
				for (s = 0; tokens[1][s] == ' '; s++);
				sdi = g_malloc0(sizeof(struct sr_dev_inst));
				sdi->status = SR_ST_INACTIVE;
				sdi->vendor = g_strdup("Fluke");
				sdi->model = g_strdup(tokens[0] + 6);
				sdi->version = g_strdup(tokens[1] + s);
				devc = g_malloc0(sizeof(struct dev_context));
				devc->profile = &supported_flukedmm[i];
				sdi->inst_type = SR_INST_SERIAL;
				sdi->conn = serial;
				sdi->priv = devc;
				sdi->driver = di;
				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;
			}
		}
		g_strfreev(tokens);
		if (devices)
			/* Found one. */
			break;
	}
	serial_close(serial);
	if (!devices)
		sr_serial_dev_inst_free(serial);

	return devices;
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct sr_config *src;
	GSList *l, *devices;
	int i;
	const char *conn, *serialcomm;

	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;

	devices = NULL;
	if (serialcomm) {
		/* Use the provided comm specs. */
		devices = fluke_scan(di, conn, serialcomm);
	} else {
		for (i = 0; scan_conn[i]; i++) {
			if ((devices = fluke_scan(di, conn, scan_conn[i])))
				break;
			/* The Scopemeter 199B, at least, requires this
			 * after all the 115k/9.6k confusion. */
			g_usleep(5 * 1000);
		}
	}

	return devices;
}

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:
		/* TODO: not yet implemented */
		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)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;

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

	devc = sdi->priv;

	std_session_send_df_header(sdi, LOG_PREFIX);

	/* Poll every 100ms, or whenever some data comes in. */
	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 50,
			fluke_receive_data, (void *)sdi);

	if (serial_write_blocking(serial, "QM\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0) {
		sr_err("Unable to send QM.");
		return SR_ERR;
	}
	devc->cmd_sent_at = g_get_monotonic_time() / 1000;
	devc->expect_response = TRUE;

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
			sdi->conn, LOG_PREFIX);
}

SR_PRIV struct sr_dev_driver flukedmm_driver_info = {
	.name = "fluke-dmm",
	.longname = "Fluke 18x/28x series DMMs",
	.api_version = 1,
	.init = init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = NULL,
	.config_get = NULL,
	.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 = dev_acquisition_stop,
	.context = NULL,
};
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012 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 <config.h>
	21	#include <glib.h>
	22	#include <sys/types.h>
	23	#include <sys/stat.h>
	24	#include <fcntl.h>
	25	#include <string.h>
	26	#include <libsigrok/libsigrok.h>
	27	#include "libsigrok-internal.h"
	28	#include "fluke-dmm.h"
	29
	30	static const uint32_t scanopts[] = {
	31	SR_CONF_CONN,
	32	SR_CONF_SERIALCOMM,
	33	};
	34
	35	static const uint32_t devopts[] = {
	36	SR_CONF_MULTIMETER,
	37	SR_CONF_CONTINUOUS,
	38	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	39	SR_CONF_LIMIT_MSEC \| SR_CONF_SET,
	40	};
	41
	42	SR_PRIV struct sr_dev_driver flukedmm_driver_info;
	43
	44	static const char *scan_conn[] = {
	45	/* 287/289 */
	46	"115200/8n1",
	47	/* 187/189 */
	48	"9600/8n1",
	49	/* Scopemeter 190 series */
	50	"1200/8n1",
	51	NULL
	52	};
	53
	54	static const struct flukedmm_profile supported_flukedmm[] = {
	55	{ FLUKE_187, "187", 100, 1000 },
	56	{ FLUKE_189, "189", 100, 1000 },
	57	{ FLUKE_287, "287", 100, 1000 },
	58	{ FLUKE_190, "199B", 1000, 3500 },
	59	{ FLUKE_289, "289", 100, 1000 },
	60	};
	61
	62	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
	63	{
	64	return std_init(di, sr_ctx);
	65	}
	66
	67	static GSList fluke_scan(struct sr_dev_driver di, const char *conn,
	68	const char *serialcomm)
	69	{
	70	struct sr_dev_inst *sdi;
	71	struct drv_context *drvc;
	72	struct dev_context *devc;
	73	struct sr_serial_dev_inst *serial;
	74	GSList *devices;
	75	int retry, len, i, s;
	76	char buf[128], b, *tokens;
	77
	78	serial = sr_serial_dev_inst_new(conn, serialcomm);
	79
	80	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	81	return NULL;
	82
	83	drvc = di->context;
	84	b = buf;
	85	retry = 0;
	86	devices = NULL;
	87	/* We'll try the discovery sequence three times in case the device
	88	* is not in an idle state when we send ID. */
	89	while (!devices && retry < 3) {
	90	retry++;
	91	serial_flush(serial);
	92	if (serial_write_blocking(serial, "ID\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0) {
	93	sr_err("Unable to send ID string");
	94	continue;
	95	}
	96
	97	/* Response is first a CMD_ACK byte (ASCII '0' for OK,
	98	* or '1' to signify an error. */
	99	len = 128;
	100	serial_readline(serial, &b, &len, 150);
	101	if (len != 1)
	102	continue;
	103	if (buf[0] != '0')
	104	continue;
	105
	106	/* If CMD_ACK was OK, ID string follows. */
	107	len = 128;
	108	serial_readline(serial, &b, &len, 850);
	109	if (len < 10)
	110	continue;
	111	if (strcspn(buf, ",") < 15)
	112	/* Looks like it's comma-separated. */
	113	tokens = g_strsplit(buf, ",", 3);
	114	else
	115	/* Fluke 199B, at least, uses semicolon. */
	116	tokens = g_strsplit(buf, ";", 3);
	117	if (!strncmp("FLUKE", tokens[0], 5)
	118	&& tokens[1] && tokens[2]) {
	119	for (i = 0; supported_flukedmm[i].model; i++) {
	120	if (strcmp(supported_flukedmm[i].modelname, tokens[0] + 6))
	121	continue;
	122	/* Skip leading spaces in version number. */
	123	for (s = 0; tokens[1][s] == ' '; s++);
	124	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	125	sdi->status = SR_ST_INACTIVE;
	126	sdi->vendor = g_strdup("Fluke");
	127	sdi->model = g_strdup(tokens[0] + 6);
	128	sdi->version = g_strdup(tokens[1] + s);
	129	devc = g_malloc0(sizeof(struct dev_context));
	130	devc->profile = &supported_flukedmm[i];
	131	sdi->inst_type = SR_INST_SERIAL;
	132	sdi->conn = serial;
	133	sdi->priv = devc;
	134	sdi->driver = di;
	135	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	136	drvc->instances = g_slist_append(drvc->instances, sdi);
	137	devices = g_slist_append(devices, sdi);
	138	break;
	139	}
	140	}
	141	g_strfreev(tokens);
	142	if (devices)
	143	/* Found one. */
	144	break;
	145	}
	146	serial_close(serial);
	147	if (!devices)
	148	sr_serial_dev_inst_free(serial);
	149
	150	return devices;
	151	}
	152
	153	static GSList scan(struct sr_dev_driver di, GSList *options)
	154	{
	155	struct sr_config *src;
	156	GSList l, devices;
	157	int i;
	158	const char conn, serialcomm;
	159
	160	conn = serialcomm = NULL;
	161	for (l = options; l; l = l->next) {
	162	src = l->data;
	163	switch (src->key) {
	164	case SR_CONF_CONN:
	165	conn = g_variant_get_string(src->data, NULL);
	166	break;
	167	case SR_CONF_SERIALCOMM:
	168	serialcomm = g_variant_get_string(src->data, NULL);
	169	break;
	170	}
	171	}
	172	if (!conn)
	173	return NULL;
	174
	175	devices = NULL;
	176	if (serialcomm) {
	177	/* Use the provided comm specs. */
	178	devices = fluke_scan(di, conn, serialcomm);
	179	} else {
	180	for (i = 0; scan_conn[i]; i++) {
	181	if ((devices = fluke_scan(di, conn, scan_conn[i])))
	182	break;
	183	/* The Scopemeter 199B, at least, requires this
	184	* after all the 115k/9.6k confusion. */
	185	g_usleep(5 * 1000);
	186	}
	187	}
	188
	189	return devices;
	190	}
	191
	192	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	193	const struct sr_channel_group *cg)
	194	{
	195	struct dev_context *devc;
	196
	197	(void)cg;
	198
	199	if (sdi->status != SR_ST_ACTIVE)
	200	return SR_ERR_DEV_CLOSED;
	201
	202	if (!(devc = sdi->priv)) {
	203	sr_err("sdi->priv was NULL.");
	204	return SR_ERR_BUG;
	205	}
	206
	207	switch (key) {
	208	case SR_CONF_LIMIT_MSEC:
	209	/* TODO: not yet implemented */
	210	devc->limit_msec = g_variant_get_uint64(data);
	211	break;
	212	case SR_CONF_LIMIT_SAMPLES:
	213	devc->limit_samples = g_variant_get_uint64(data);
	214	break;
	215	default:
	216	return SR_ERR_NA;
	217	}
	218
	219	return SR_OK;
	220	}
	221
	222	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	223	const struct sr_channel_group *cg)
	224	{
	225	(void)sdi;
	226	(void)cg;
	227
	228	switch (key) {
	229	case SR_CONF_SCAN_OPTIONS:
	230	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	231	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	232	break;
	233	case SR_CONF_DEVICE_OPTIONS:
	234	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	235	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	236	break;
	237	default:
	238	return SR_ERR_NA;
	239	}
	240
	241	return SR_OK;
	242	}
	243
	244	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	245	{
	246	struct dev_context *devc;
	247	struct sr_serial_dev_inst *serial;
	248
	249	if (sdi->status != SR_ST_ACTIVE)
	250	return SR_ERR_DEV_CLOSED;
	251
	252	devc = sdi->priv;
	253
	254	std_session_send_df_header(sdi, LOG_PREFIX);
	255
	256	/* Poll every 100ms, or whenever some data comes in. */
	257	serial = sdi->conn;
	258	serial_source_add(sdi->session, serial, G_IO_IN, 50,
	259	fluke_receive_data, (void *)sdi);
	260
	261	if (serial_write_blocking(serial, "QM\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0) {
	262	sr_err("Unable to send QM.");
	263	return SR_ERR;
	264	}
	265	devc->cmd_sent_at = g_get_monotonic_time() / 1000;
	266	devc->expect_response = TRUE;
	267
	268	return SR_OK;
	269	}
	270
	271	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	272	{
	273	return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
	274	sdi->conn, LOG_PREFIX);
	275	}
	276
	277	SR_PRIV struct sr_dev_driver flukedmm_driver_info = {
	278	.name = "fluke-dmm",
	279	.longname = "Fluke 18x/28x series DMMs",
	280	.api_version = 1,
	281	.init = init,
	282	.cleanup = std_cleanup,
	283	.scan = scan,
	284	.dev_list = std_dev_list,
	285	.dev_clear = NULL,
	286	.config_get = NULL,
	287	.config_set = config_set,
	288	.config_list = config_list,
	289	.dev_open = std_serial_dev_open,
	290	.dev_close = std_serial_dev_close,
	291	.dev_acquisition_start = dev_acquisition_start,
	292	.dev_acquisition_stop = dev_acquisition_stop,
	293	.context = NULL,
	294	};