[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,
};

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 GSList *fluke_scan(struct sr_dev_driver *di, const char *conn,
		const char *serialcomm)
{
	struct sr_dev_inst *sdi;
	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;

	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));
				sr_sw_limits_init(&devc->limits);
				devc->profile = &supported_flukedmm[i];
				sdi->inst_type = SR_INST_SERIAL;
				sdi->conn = serial;
				sdi->priv = devc;
				sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
				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 std_scan_complete(di, 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;

	devc = sdi->priv;

	return sr_sw_limits_config_set(&devc->limits, key, data);
}

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;

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

	/* 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);
}

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