[libsigrok.git] / src / hardware / agilent-dmm / sched.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 <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "agilent-dmm.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <math.h>

static void dispatch(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	const struct agdmm_job *jobs;
	int64_t now;
	int i;

	devc = sdi->priv;
	jobs = devc->profile->jobs;
	now = g_get_monotonic_time() / 1000;
	for (i = 0; (&jobs[i])->interval; i++) {
		if (now - devc->jobqueue[i] > (&jobs[i])->interval) {
			sr_spew("Running job %d.", i);
			(&jobs[i])->send(sdi);
			devc->jobqueue[i] = now;
		}
	}
}

static void receive_line(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	const struct agdmm_recv *recvs, *recv;
	GRegex *reg;
	GMatchInfo *match;
	int i;

	devc = sdi->priv;

	/* Strip CRLF */
	while (devc->buflen) {
		if (*(devc->buf + devc->buflen - 1) == '\r'
				|| *(devc->buf + devc->buflen - 1) == '\n')
			*(devc->buf + --devc->buflen) = '\0';
		else
			break;
	}
	sr_spew("Received '%s'.", devc->buf);

	recv = NULL;
	recvs = devc->profile->recvs;
	for (i = 0; (&recvs[i])->recv_regex; i++) {
		reg = g_regex_new((&recvs[i])->recv_regex, 0, 0, NULL);
		if (g_regex_match(reg, (char *)devc->buf, 0, &match)) {
			recv = &recvs[i];
			break;
		}
		g_match_info_unref(match);
		g_regex_unref(reg);
	}
	if (recv) {
		recv->recv(sdi, match);
		g_match_info_unref(match);
		g_regex_unref(reg);
	} else
		sr_dbg("Unknown line '%s'.", devc->buf);

	/* Done with this. */
	devc->buflen = 0;
}

SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	int len;

	(void)fd;

	if (!(sdi = cb_data))
		return TRUE;

	if (!(devc = sdi->priv))
		return TRUE;

	serial = sdi->conn;
	if (revents == G_IO_IN) {
		/* Serial data arrived. */
		while(AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
			len = serial_read(serial, devc->buf + devc->buflen, 1);
			if (len < 1)
				break;
			devc->buflen += len;
			*(devc->buf + devc->buflen) = '\0';
			if (*(devc->buf + devc->buflen - 1) == '\n') {
				/* End of line */
				receive_line(sdi);
				break;
			}
		}
	}

	dispatch(sdi);

	if (devc->limit_samples && devc->num_samples >= devc->limit_samples)
		sdi->driver->dev_acquisition_stop(sdi, cb_data);

	return TRUE;
}

static int agdmm_send(const struct sr_dev_inst *sdi, const char *cmd)
{
	struct sr_serial_dev_inst *serial;
	char buf[32];

	serial = sdi->conn;

	sr_spew("Sending '%s'.", cmd);
	strncpy(buf, cmd, 28);
	if (!strncmp(buf, "*IDN?", 5))
		strncat(buf, "\r\n", 32);
	else
		strncat(buf, "\n\r\n", 32);
	if (serial_write(serial, buf, strlen(buf)) == -1) {
		sr_err("Failed to send: %s.", strerror(errno));
		return SR_ERR;
	}

	return SR_OK;
}

static int send_stat(const struct sr_dev_inst *sdi)
{
	return agdmm_send(sdi, "STAT?");
}

static int recv_stat_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *s;

	devc = sdi->priv;
	s = g_match_info_fetch(match, 1);
	sr_spew("STAT response '%s'.", s);

	/* Max, Min or Avg mode -- no way to tell which, so we'll
	 * set both flags to denote it's not a normal measurement. */
	if (s[0] == '1')
		devc->cur_mqflags |= SR_MQFLAG_MAX | SR_MQFLAG_MIN;
	else
		devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN);

	if (s[1] == '1')
		devc->cur_mqflags |= SR_MQFLAG_RELATIVE;
	else
		devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;

	/* Triggered or auto hold modes. */
	if (s[2] == '1' || s[3] == '1')
		devc->cur_mqflags |= SR_MQFLAG_HOLD;
	else
		devc->cur_mqflags &= ~SR_MQFLAG_HOLD;

	/* Temp/aux mode. */
	if (s[7] == '1')
		devc->mode_tempaux = TRUE;
	else
		devc->mode_tempaux = FALSE;

	/* Continuity mode. */
	if (s[16] == '1')
		devc->mode_continuity = TRUE;
	else
		devc->mode_continuity = FALSE;

	g_free(s);

	return SR_OK;
}

static int recv_stat_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *s;

	devc = sdi->priv;
	s = g_match_info_fetch(match, 1);
	sr_spew("STAT response '%s'.", s);

	/* Peak hold mode. */
	if (s[4] == '1')
		devc->cur_mqflags |= SR_MQFLAG_MAX;
	else
		devc->cur_mqflags &= ~SR_MQFLAG_MAX;

	/* Triggered hold mode. */
	if (s[7] == '1')
		devc->cur_mqflags |= SR_MQFLAG_HOLD;
	else
		devc->cur_mqflags &= ~SR_MQFLAG_HOLD;

	g_free(s);

	return SR_OK;
}

static int send_fetc(const struct sr_dev_inst *sdi)
{
	return agdmm_send(sdi, "FETC?");
}

static int recv_fetc(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	struct sr_datafeed_packet packet;
	struct sr_datafeed_analog analog;
	float fvalue;
	const char *s;
	char *mstr;

	sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
	devc = sdi->priv;

	if (devc->cur_mq == -1)
		/* Haven't seen configuration yet, so can't know what
		 * the fetched float means. Not really an error, we'll
		 * get metadata soon enough. */
		return SR_OK;

	s = g_match_info_get_string(match);
	if (!strcmp(s, "-9.90000000E+37") || !strcmp(s, "+9.90000000E+37")) {
		/* An invalid measurement shows up on the display as "O.L", but
		 * comes through like this. Since comparing 38-digit floats
		 * is rather problematic, we'll cut through this here. */
		fvalue = NAN;
	} else {
		mstr = g_match_info_fetch(match, 1);
		if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
			g_free(mstr);
			sr_dbg("Invalid float.");
			return SR_ERR;
		}
		g_free(mstr);
		if (devc->cur_divider > 0)
			fvalue /= devc->cur_divider;
	}

	memset(&analog, 0, sizeof(struct sr_datafeed_analog));
	analog.mq = devc->cur_mq;
	analog.unit = devc->cur_unit;
	analog.mqflags = devc->cur_mqflags;
	analog.channels = sdi->channels;
	analog.num_samples = 1;
	analog.data = &fvalue;
	packet.type = SR_DF_ANALOG;
	packet.payload = &analog;
	sr_session_send(devc->cb_data, &packet);

	devc->num_samples++;

	return SR_OK;
}

static int send_conf(const struct sr_dev_inst *sdi)
{
	return agdmm_send(sdi, "CONF?");
}

static int recv_conf_u123x(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *mstr;

	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
	devc = sdi->priv;
	mstr = g_match_info_fetch(match, 1);
	if (!strcmp(mstr, "V")) {
		devc->cur_mq = SR_MQ_VOLTAGE;
		devc->cur_unit = SR_UNIT_VOLT;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "MV")) {
		if (devc->mode_tempaux) {
			devc->cur_mq = SR_MQ_TEMPERATURE;
			/* No way to detect whether Fahrenheit or Celcius
			 * is used, so we'll just default to Celcius. */
			devc->cur_unit = SR_UNIT_CELSIUS;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
		} else {
			devc->cur_mq = SR_MQ_VOLTAGE;
			devc->cur_unit = SR_UNIT_VOLT;
			devc->cur_mqflags = 0;
			devc->cur_divider = 1000;
		}
	} else if(!strcmp(mstr, "A")) {
		devc->cur_mq = SR_MQ_CURRENT;
		devc->cur_unit = SR_UNIT_AMPERE;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "UA")) {
		devc->cur_mq = SR_MQ_CURRENT;
		devc->cur_unit = SR_UNIT_AMPERE;
		devc->cur_mqflags = 0;
		devc->cur_divider = 1000000;
	} else if(!strcmp(mstr, "FREQ")) {
		devc->cur_mq = SR_MQ_FREQUENCY;
		devc->cur_unit = SR_UNIT_HERTZ;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "RES")) {
		if (devc->mode_continuity) {
			devc->cur_mq = SR_MQ_CONTINUITY;
			devc->cur_unit = SR_UNIT_BOOLEAN;
		} else {
			devc->cur_mq = SR_MQ_RESISTANCE;
			devc->cur_unit = SR_UNIT_OHM;
		}
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "CAP")) {
		devc->cur_mq = SR_MQ_CAPACITANCE;
		devc->cur_unit = SR_UNIT_FARAD;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else
		sr_dbg("Unknown first argument.");
	g_free(mstr);

	if (g_match_info_get_match_count(match) == 4) {
		mstr = g_match_info_fetch(match, 3);
		/* Third value, if present, is always AC or DC. */
		if (!strcmp(mstr, "AC")) {
			devc->cur_mqflags |= SR_MQFLAG_AC;
			if (devc->cur_mq == SR_MQ_VOLTAGE)
				devc->cur_mqflags |= SR_MQFLAG_RMS;
		} else if (!strcmp(mstr, "DC")) {
			devc->cur_mqflags |= SR_MQFLAG_DC;
		} else {
			sr_dbg("Unknown third argument.");
		}
		g_free(mstr);
	} else
		devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);

	return SR_OK;
}

static int recv_conf_u125x(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *mstr;

	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
	devc = sdi->priv;
	mstr = g_match_info_fetch(match, 1);
	if (!strncmp(mstr, "VOLT", 4)) {
		devc->cur_mq = SR_MQ_VOLTAGE;
		devc->cur_unit = SR_UNIT_VOLT;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
		if (mstr[4] == ':') {
			if (!strcmp(mstr + 4, "AC")) {
				devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
			} else if (!strcmp(mstr + 4, "DC")) {
				devc->cur_mqflags |= SR_MQFLAG_DC;
			} else if (!strcmp(mstr + 4, "ACDC")) {
				/* AC + DC offset */
				devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
			} else {
				devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
			}
		} else
			devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);
	} else if(!strcmp(mstr, "CURR")) {
		devc->cur_mq = SR_MQ_CURRENT;
		devc->cur_unit = SR_UNIT_AMPERE;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if(!strcmp(mstr, "RES")) {
		if (devc->mode_continuity) {
			devc->cur_mq = SR_MQ_CONTINUITY;
			devc->cur_unit = SR_UNIT_BOOLEAN;
		} else {
			devc->cur_mq = SR_MQ_RESISTANCE;
			devc->cur_unit = SR_UNIT_OHM;
		}
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else {
		sr_dbg("Unknown first argument.");
	}
	g_free(mstr);

	return SR_OK;
}

/* At least the 123x and 125x appear to have this. */
static int recv_conf(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *mstr;

	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
	devc = sdi->priv;
	mstr = g_match_info_fetch(match, 1);
	if(!strcmp(mstr, "DIOD")) {
		devc->cur_mq = SR_MQ_VOLTAGE;
		devc->cur_unit = SR_UNIT_VOLT;
		devc->cur_mqflags = SR_MQFLAG_DIODE;
		devc->cur_divider = 0;
	} else
		sr_dbg("Unknown single argument.");
	g_free(mstr);

	return SR_OK;
}

/* This comes in whenever the rotary switch is changed to a new position.
 * We could use it to determine the major measurement mode, but we already
 * have the output of CONF? for that, which is more detailed. However
 * we do need to catch this here, or it'll show up in some other output. */
static int recv_switch(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	(void)sdi;

	sr_spew("Switch '%s'.", g_match_info_get_string(match));

	return SR_OK;
}

/* Poll keys/switches and values at 7Hz, mode at 1Hz. */
SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
	{ 143, send_stat },
	{ 1000, send_conf },
	{ 143, send_fetc },
	{ 0, NULL }
};

SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
	{ "^\\*([0-9])$", recv_switch },
	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
	{ "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", recv_conf_u123x },
	{ "^\"(RES|CAP),(\\d)\"$", recv_conf_u123x},
	{ "^\"(DIOD)\"$", recv_conf },
	{ NULL, NULL }
};

SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
	{ "^\\*([0-9])$", recv_switch },
	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
	{ "^(VOLT|CURR|RES|CAP) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
	{ "^(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
	{ "^\"(DIOD)\"$", recv_conf },
	{ NULL, NULL }
};
Commit	Line	Data
e93cdf42	1	/*
50985c20	2	* This file is part of the libsigrok project.
e93cdf42 BV	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 <glib.h>
	21	#include "libsigrok.h"
	22	#include "libsigrok-internal.h"
e93cdf42 BV	23	#include "agilent-dmm.h"
	24	#include <stdlib.h>
	25	#include <string.h>
	26	#include <errno.h>
	27	#include <math.h>
	28
e93cdf42 BV	29	static void dispatch(const struct sr_dev_inst *sdi)
	30	{
	31	struct dev_context *devc;
	32	const struct agdmm_job *jobs;
	33	int64_t now;
	34	int i;
	35
	36	devc = sdi->priv;
	37	jobs = devc->profile->jobs;
	38	now = g_get_monotonic_time() / 1000;
	39	for (i = 0; (&jobs[i])->interval; i++) {
	40	if (now - devc->jobqueue[i] > (&jobs[i])->interval) {
38d326e8	41	sr_spew("Running job %d.", i);
e93cdf42 BV	42	(&jobs[i])->send(sdi);
	43	devc->jobqueue[i] = now;
	44	}
	45	}
e93cdf42 BV	46	}
	47
	48	static void receive_line(const struct sr_dev_inst *sdi)
	49	{
	50	struct dev_context *devc;
	51	const struct agdmm_recv recvs, recv;
	52	GRegex *reg;
	53	GMatchInfo *match;
	54	int i;
	55
	56	devc = sdi->priv;
	57
	58	/* Strip CRLF */
	59	while (devc->buflen) {
	60	if (*(devc->buf + devc->buflen - 1) == '\r'
	61	\|\| *(devc->buf + devc->buflen - 1) == '\n')
	62	*(devc->buf + --devc->buflen) = '\0';
	63	else
	64	break;
	65	}
38d326e8	66	sr_spew("Received '%s'.", devc->buf);
e93cdf42 BV	67
	68	recv = NULL;
	69	recvs = devc->profile->recvs;
	70	for (i = 0; (&recvs[i])->recv_regex; i++) {
	71	reg = g_regex_new((&recvs[i])->recv_regex, 0, 0, NULL);
	72	if (g_regex_match(reg, (char *)devc->buf, 0, &match)) {
	73	recv = &recvs[i];
	74	break;
	75	}
	76	g_match_info_unref(match);
	77	g_regex_unref(reg);
	78	}
	79	if (recv) {
	80	recv->recv(sdi, match);
	81	g_match_info_unref(match);
	82	g_regex_unref(reg);
f2e86bbf	83	} else
38d326e8	84	sr_dbg("Unknown line '%s'.", devc->buf);
e93cdf42 BV	85
	86	/* Done with this. */
	87	devc->buflen = 0;
e93cdf42 BV	88	}
	89
	90	SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
	91	{
642e9d62	92	struct sr_dev_inst *sdi;
e93cdf42	93	struct dev_context *devc;
fb3a1505	94	struct sr_serial_dev_inst *serial;
e93cdf42 BV	95	int len;
e93cdf42 BV	96
109a3ba4 BV	97	(void)fd;
109a3ba4 BV	98
e93cdf42 BV	99	if (!(sdi = cb_data))
	100	return TRUE;
	101
	102	if (!(devc = sdi->priv))
	103	return TRUE;
	104
fb3a1505	105	serial = sdi->conn;
e93cdf42 BV	106	if (revents == G_IO_IN) {
e93cdf42 BV	107	/* Serial data arrived. */
f2e86bbf	108	while(AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
fb3a1505	109	len = serial_read(serial, devc->buf + devc->buflen, 1);
f2e86bbf BV	110	if (len < 1)
	111	break;
	112	devc->buflen += len;
	113	*(devc->buf + devc->buflen) = '\0';
	114	if (*(devc->buf + devc->buflen - 1) == '\n') {
	115	/* End of line */
	116	receive_line(sdi);
	117	break;
e93cdf42 BV	118	}
	119	}
	120	}
	121
	122	dispatch(sdi);
	123
35e199da	124	if (devc->limit_samples && devc->num_samples >= devc->limit_samples)
e93cdf42 BV	125	sdi->driver->dev_acquisition_stop(sdi, cb_data);
	126
	127	return TRUE;
	128	}
	129
	130	static int agdmm_send(const struct sr_dev_inst sdi, const char cmd)
	131	{
fb3a1505	132	struct sr_serial_dev_inst *serial;
e93cdf42 BV	133	char buf[32];
e93cdf42 BV	134
fb3a1505 BV	135	serial = sdi->conn;
fb3a1505 BV	136
38d326e8	137	sr_spew("Sending '%s'.", cmd);
e93cdf42 BV	138	strncpy(buf, cmd, 28);
	139	if (!strncmp(buf, "*IDN?", 5))
	140	strncat(buf, "\r\n", 32);
	141	else
	142	strncat(buf, "\n\r\n", 32);
fb3a1505	143	if (serial_write(serial, buf, strlen(buf)) == -1) {
38d326e8	144	sr_err("Failed to send: %s.", strerror(errno));
e93cdf42 BV	145	return SR_ERR;
e93cdf42 BV	146	}
ce4d26dd	147
e93cdf42 BV	148	return SR_OK;
	149	}
	150
a4394fb3	151	static int send_stat(const struct sr_dev_inst *sdi)
e93cdf42	152	{
e93cdf42 BV	153	return agdmm_send(sdi, "STAT?");
	154	}
	155
8c0152f2	156	static int recv_stat_u123x(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42	157	{
e6b021f3 BV	158	struct dev_context *devc;
	159	char *s;
	160
	161	devc = sdi->priv;
	162	s = g_match_info_fetch(match, 1);
38d326e8	163	sr_spew("STAT response '%s'.", s);
e6b021f3 BV	164
	165	/* Max, Min or Avg mode -- no way to tell which, so we'll
	166	* set both flags to denote it's not a normal measurement. */
	167	if (s[0] == '1')
	168	devc->cur_mqflags \|= SR_MQFLAG_MAX \| SR_MQFLAG_MIN;
	169	else
	170	devc->cur_mqflags &= ~(SR_MQFLAG_MAX \| SR_MQFLAG_MIN);
e93cdf42	171
e6b021f3 BV	172	if (s[1] == '1')
	173	devc->cur_mqflags \|= SR_MQFLAG_RELATIVE;
	174	else
	175	devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
	176
	177	/* Triggered or auto hold modes. */
	178	if (s[2] == '1' \|\| s[3] == '1')
	179	devc->cur_mqflags \|= SR_MQFLAG_HOLD;
	180	else
	181	devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
	182
	183	/* Temp/aux mode. */
	184	if (s[7] == '1')
	185	devc->mode_tempaux = TRUE;
	186	else
	187	devc->mode_tempaux = FALSE;
	188
38d326e8	189	/* Continuity mode. */
e6b021f3 BV	190	if (s[16] == '1')
	191	devc->mode_continuity = TRUE;
	192	else
	193	devc->mode_continuity = FALSE;
	194
	195	g_free(s);
e93cdf42 BV	196
	197	return SR_OK;
	198	}
	199
8c0152f2 BV	200	static int recv_stat_u125x(const struct sr_dev_inst sdi, GMatchInfo match)
	201	{
	202	struct dev_context *devc;
	203	char *s;
	204
	205	devc = sdi->priv;
	206	s = g_match_info_fetch(match, 1);
38d326e8	207	sr_spew("STAT response '%s'.", s);
8c0152f2 BV	208
	209	/* Peak hold mode. */
	210	if (s[4] == '1')
	211	devc->cur_mqflags \|= SR_MQFLAG_MAX;
	212	else
	213	devc->cur_mqflags &= ~SR_MQFLAG_MAX;
	214
	215	/* Triggered hold mode. */
	216	if (s[7] == '1')
	217	devc->cur_mqflags \|= SR_MQFLAG_HOLD;
	218	else
	219	devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
	220
	221	g_free(s);
	222
	223	return SR_OK;
	224	}
	225
a4394fb3	226	static int send_fetc(const struct sr_dev_inst *sdi)
e93cdf42	227	{
e93cdf42 BV	228	return agdmm_send(sdi, "FETC?");
	229	}
	230
a4394fb3	231	static int recv_fetc(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42 BV	232	{
	233	struct dev_context *devc;
	234	struct sr_datafeed_packet packet;
	235	struct sr_datafeed_analog analog;
	236	float fvalue;
f216eb86	237	const char *s;
fe9d5abe	238	char *mstr;
e93cdf42	239
38d326e8	240	sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
e93cdf42 BV	241	devc = sdi->priv;
	242
	243	if (devc->cur_mq == -1)
	244	/* Haven't seen configuration yet, so can't know what
	245	* the fetched float means. Not really an error, we'll
	246	* get metadata soon enough. */
	247	return SR_OK;
	248
f216eb86 BV	249	s = g_match_info_get_string(match);
f216eb86 BV	250	if (!strcmp(s, "-9.90000000E+37") \|\| !strcmp(s, "+9.90000000E+37")) {
74ac7d7f	251	/* An invalid measurement shows up on the display as "O.L", but
e93cdf42 BV	252	* comes through like this. Since comparing 38-digit floats
	253	* is rather problematic, we'll cut through this here. */
	254	fvalue = NAN;
	255	} else {
	256	mstr = g_match_info_fetch(match, 1);
7c03b564	257	if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
fe9d5abe	258	g_free(mstr);
51b92b7d	259	sr_dbg("Invalid float.");
e93cdf42 BV	260	return SR_ERR;
e93cdf42 BV	261	}
fe9d5abe	262	g_free(mstr);
e93cdf42 BV	263	if (devc->cur_divider > 0)
	264	fvalue /= devc->cur_divider;
	265	}
	266
	267	memset(&analog, 0, sizeof(struct sr_datafeed_analog));
	268	analog.mq = devc->cur_mq;
e6b021f3 BV	269	analog.unit = devc->cur_unit;
e6b021f3 BV	270	analog.mqflags = devc->cur_mqflags;
ba7dd8bb	271	analog.channels = sdi->channels;
e93cdf42 BV	272	analog.num_samples = 1;
	273	analog.data = &fvalue;
	274	packet.type = SR_DF_ANALOG;
	275	packet.payload = &analog;
	276	sr_session_send(devc->cb_data, &packet);
	277
	278	devc->num_samples++;
	279
	280	return SR_OK;
	281	}
	282
a4394fb3	283	static int send_conf(const struct sr_dev_inst *sdi)
e93cdf42	284	{
e93cdf42 BV	285	return agdmm_send(sdi, "CONF?");
	286	}
	287
a4394fb3	288	static int recv_conf_u123x(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42 BV	289	{
	290	struct dev_context *devc;
	291	char *mstr;
	292
38d326e8	293	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
e93cdf42 BV	294	devc = sdi->priv;
	295	mstr = g_match_info_fetch(match, 1);
	296	if (!strcmp(mstr, "V")) {
	297	devc->cur_mq = SR_MQ_VOLTAGE;
e6b021f3 BV	298	devc->cur_unit = SR_UNIT_VOLT;
e6b021f3 BV	299	devc->cur_mqflags = 0;
e93cdf42 BV	300	devc->cur_divider = 0;
e93cdf42 BV	301	} else if(!strcmp(mstr, "MV")) {
e6b021f3 BV	302	if (devc->mode_tempaux) {
	303	devc->cur_mq = SR_MQ_TEMPERATURE;
	304	/* No way to detect whether Fahrenheit or Celcius
	305	* is used, so we'll just default to Celcius. */
	306	devc->cur_unit = SR_UNIT_CELSIUS;
	307	devc->cur_mqflags = 0;
	308	devc->cur_divider = 0;
	309	} else {
	310	devc->cur_mq = SR_MQ_VOLTAGE;
	311	devc->cur_unit = SR_UNIT_VOLT;
	312	devc->cur_mqflags = 0;
	313	devc->cur_divider = 1000;
	314	}
e93cdf42 BV	315	} else if(!strcmp(mstr, "A")) {
e93cdf42 BV	316	devc->cur_mq = SR_MQ_CURRENT;
e6b021f3 BV	317	devc->cur_unit = SR_UNIT_AMPERE;
e6b021f3 BV	318	devc->cur_mqflags = 0;
e93cdf42 BV	319	devc->cur_divider = 0;
	320	} else if(!strcmp(mstr, "UA")) {
	321	devc->cur_mq = SR_MQ_CURRENT;
e6b021f3 BV	322	devc->cur_unit = SR_UNIT_AMPERE;
e6b021f3 BV	323	devc->cur_mqflags = 0;
e93cdf42 BV	324	devc->cur_divider = 1000000;
	325	} else if(!strcmp(mstr, "FREQ")) {
	326	devc->cur_mq = SR_MQ_FREQUENCY;
e6b021f3 BV	327	devc->cur_unit = SR_UNIT_HERTZ;
e6b021f3 BV	328	devc->cur_mqflags = 0;
e93cdf42 BV	329	devc->cur_divider = 0;
e93cdf42 BV	330	} else if(!strcmp(mstr, "RES")) {
e6b021f3 BV	331	if (devc->mode_continuity) {
	332	devc->cur_mq = SR_MQ_CONTINUITY;
	333	devc->cur_unit = SR_UNIT_BOOLEAN;
	334	} else {
	335	devc->cur_mq = SR_MQ_RESISTANCE;
	336	devc->cur_unit = SR_UNIT_OHM;
	337	}
	338	devc->cur_mqflags = 0;
e93cdf42 BV	339	devc->cur_divider = 0;
	340	} else if(!strcmp(mstr, "CAP")) {
	341	devc->cur_mq = SR_MQ_CAPACITANCE;
e6b021f3 BV	342	devc->cur_unit = SR_UNIT_FARAD;
e6b021f3 BV	343	devc->cur_mqflags = 0;
e93cdf42	344	devc->cur_divider = 0;
e93cdf42	345	} else
38d326e8	346	sr_dbg("Unknown first argument.");
e93cdf42 BV	347	g_free(mstr);
e93cdf42 BV	348
e066c32a BV	349	if (g_match_info_get_match_count(match) == 4) {
e066c32a BV	350	mstr = g_match_info_fetch(match, 3);
e93cdf42	351	/* Third value, if present, is always AC or DC. */
51b92b7d	352	if (!strcmp(mstr, "AC")) {
e6b021f3	353	devc->cur_mqflags \|= SR_MQFLAG_AC;
51b92b7d BV	354	if (devc->cur_mq == SR_MQ_VOLTAGE)
	355	devc->cur_mqflags \|= SR_MQFLAG_RMS;
	356	} else if (!strcmp(mstr, "DC")) {
e6b021f3	357	devc->cur_mqflags \|= SR_MQFLAG_DC;
51b92b7d	358	} else {
38d326e8	359	sr_dbg("Unknown third argument.");
51b92b7d	360	}
e93cdf42	361	g_free(mstr);
e6b021f3 BV	362	} else
e6b021f3 BV	363	devc->cur_mqflags &= ~(SR_MQFLAG_AC \| SR_MQFLAG_DC);
e93cdf42 BV	364
	365	return SR_OK;
	366	}
	367
8c0152f2 BV	368	static int recv_conf_u125x(const struct sr_dev_inst sdi, GMatchInfo match)
	369	{
	370	struct dev_context *devc;
	371	char *mstr;
	372
38d326e8	373	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
8c0152f2 BV	374	devc = sdi->priv;
	375	mstr = g_match_info_fetch(match, 1);
	376	if (!strncmp(mstr, "VOLT", 4)) {
	377	devc->cur_mq = SR_MQ_VOLTAGE;
	378	devc->cur_unit = SR_UNIT_VOLT;
	379	devc->cur_mqflags = 0;
	380	devc->cur_divider = 0;
	381	if (mstr[4] == ':') {
51b92b7d BV	382	if (!strcmp(mstr + 4, "AC")) {
	383	devc->cur_mqflags \|= SR_MQFLAG_AC \| SR_MQFLAG_RMS;
	384	} else if (!strcmp(mstr + 4, "DC")) {
8c0152f2	385	devc->cur_mqflags \|= SR_MQFLAG_DC;
51b92b7d BV	386	} else if (!strcmp(mstr + 4, "ACDC")) {
	387	/* AC + DC offset */
	388	devc->cur_mqflags \|= SR_MQFLAG_AC \| SR_MQFLAG_DC \| SR_MQFLAG_RMS;
	389	} else {
8c0152f2	390	devc->cur_mqflags &= ~(SR_MQFLAG_AC \| SR_MQFLAG_DC);
51b92b7d	391	}
8c0152f2 BV	392	} else
	393	devc->cur_mqflags &= ~(SR_MQFLAG_AC \| SR_MQFLAG_DC);
	394	} else if(!strcmp(mstr, "CURR")) {
	395	devc->cur_mq = SR_MQ_CURRENT;
	396	devc->cur_unit = SR_UNIT_AMPERE;
	397	devc->cur_mqflags = 0;
	398	devc->cur_divider = 0;
	399	} else if(!strcmp(mstr, "RES")) {
	400	if (devc->mode_continuity) {
	401	devc->cur_mq = SR_MQ_CONTINUITY;
	402	devc->cur_unit = SR_UNIT_BOOLEAN;
	403	} else {
	404	devc->cur_mq = SR_MQ_RESISTANCE;
	405	devc->cur_unit = SR_UNIT_OHM;
	406	}
	407	devc->cur_mqflags = 0;
	408	devc->cur_divider = 0;
51b92b7d	409	} else {
38d326e8	410	sr_dbg("Unknown first argument.");
51b92b7d	411	}
8c0152f2 BV	412	g_free(mstr);
8c0152f2 BV	413
8c0152f2 BV	414	return SR_OK;
	415	}
	416
a4394fb3 BV	417	/* At least the 123x and 125x appear to have this. */
	418	static int recv_conf(const struct sr_dev_inst sdi, GMatchInfo match)
	419	{
	420	struct dev_context *devc;
	421	char *mstr;
	422
38d326e8	423	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
a4394fb3 BV	424	devc = sdi->priv;
	425	mstr = g_match_info_fetch(match, 1);
	426	if(!strcmp(mstr, "DIOD")) {
	427	devc->cur_mq = SR_MQ_VOLTAGE;
	428	devc->cur_unit = SR_UNIT_VOLT;
	429	devc->cur_mqflags = SR_MQFLAG_DIODE;
	430	devc->cur_divider = 0;
8c0152f2	431	} else
38d326e8	432	sr_dbg("Unknown single argument.");
a4394fb3 BV	433	g_free(mstr);
	434
	435	return SR_OK;
	436	}
	437
81599cc5 BV	438	/* This comes in whenever the rotary switch is changed to a new position.
	439	* We could use it to determine the major measurement mode, but we already
	440	* have the output of CONF? for that, which is more detailed. However
	441	* we do need to catch this here, or it'll show up in some other output. */
a4394fb3	442	static int recv_switch(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42	443	{
e93cdf42 BV	444	(void)sdi;
e93cdf42 BV	445
38d326e8	446	sr_spew("Switch '%s'.", g_match_info_get_string(match));
e93cdf42 BV	447
	448	return SR_OK;
	449	}
	450
f857bd92 BV	451	/* Poll keys/switches and values at 7Hz, mode at 1Hz. */
f857bd92 BV	452	SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
a4394fb3 BV	453	{ 143, send_stat },
	454	{ 1000, send_conf },
	455	{ 143, send_fetc },
e93cdf42 BV	456	{ 0, NULL }
	457	};
	458
8c0152f2 BV	459	SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
8c0152f2 BV	460	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
a4394fb3 BV	461	{ "^\\*([0-9])$", recv_switch },
	462	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
	463	{ "^\"(V\|MV\|A\|UA\|FREQ),(\\d),(AC\|DC)\"$", recv_conf_u123x },
	464	{ "^\"(RES\|CAP),(\\d)\"$", recv_conf_u123x},
	465	{ "^\"(DIOD)\"$", recv_conf },
e93cdf42 BV	466	{ NULL, NULL }
	467	};
	468
8c0152f2 BV	469	SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
	470	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
	471	{ "^\\*([0-9])$", recv_switch },
	472	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
	473	{ "^(VOLT\|CURR\|RES\|CAP) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
	474	{ "^(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)$", recv_conf_u125x },
	475	{ "^\"(DIOD)\"$", recv_conf },
	476	{ NULL, NULL }
	477	};