[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_nonblocking(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))
		strcat(buf, "\r\n");
	else
		strcat(buf, "\n\r\n");
	if (serial_write_blocking(serial, buf, strlen(buf), SERIAL_WRITE_TIMEOUT_MS) < (int)strlen(buf)) {
		sr_err("Failed to send.");
		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_u124x(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;

	/* 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 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 Celsius
			 * is used, so we'll just default to Celsius. */
			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 first argument '%s'.", mstr);
		}
		g_free(mstr);
	} else
		devc->cur_mqflags &= ~(SR_MQFLAG_AC | SR_MQFLAG_DC);

	return SR_OK;
}

static int recv_conf_u124x_5x(const struct sr_dev_inst *sdi, GMatchInfo *match)
{
	struct dev_context *devc;
	char *mstr, *m2;

	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 (!strncmp(mstr + 5, "AC", 2)) {
				devc->cur_mqflags |= SR_MQFLAG_AC | SR_MQFLAG_RMS;
			} else if (!strncmp(mstr + 5, "DC", 2)) {
				devc->cur_mqflags |= SR_MQFLAG_DC;
			} else if (!strncmp(mstr + 5, "ACDC", 4)) {
				/* 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")) {
		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 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, "CONT")) {
		devc->cur_mq = SR_MQ_CONTINUITY;
		devc->cur_unit = SR_UNIT_BOOLEAN;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if (!strncmp(mstr, "T1", 2) || !strncmp(mstr, "T2", 2)) {
		devc->cur_mq = SR_MQ_TEMPERATURE;
		m2 = g_match_info_fetch(match, 2);
		if (!strcmp(m2, "FAR"))
			devc->cur_unit = SR_UNIT_FAHRENHEIT;
		else
			devc->cur_unit = SR_UNIT_CELSIUS;
		g_free(m2);
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else if (!strcmp(mstr, "SCOU")) {
		/*
		 * Switch counter, not supported. Not sure what values
		 * come from FETC in this mode, or how they would map
		 * into libsigrok.
		 */
	} else if (!strncmp(mstr, "CPER:", 5)) {
		devc->cur_mq = SR_MQ_CURRENT;
		devc->cur_unit = SR_UNIT_PERCENTAGE;
		devc->cur_mqflags = 0;
		devc->cur_divider = 0;
	} else {
		sr_dbg("Unknown first argument '%s'.", mstr);
	}
	g_free(mstr);

	return SR_OK;
}

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_u124x[] = {
	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u124x },
	{ "^\\*([0-9])$", recv_switch },
	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
	{ "^\"(VOLT|CURR|RES|CAP|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
	{ "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
	{ "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
	{ "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
	{ "^\"(DIOD)\"$", 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})$", recv_fetc },
	{ "^\"(VOLT|CURR|RES|CAP|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
	{ "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
	{ "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
	{ "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
	{ "^\"(DIOD)\"$", 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. */
0c5f2abc	108	while (AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
e0b781a4	109	len = serial_read_nonblocking(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);
e93cdf42 BV	139	if (!strncmp(buf, "*IDN?", 5))
90486ba8	140	strcat(buf, "\r\n");
e93cdf42	141	else
90486ba8	142	strcat(buf, "\n\r\n");
95779b43	143	if (serial_write_blocking(serial, buf, strlen(buf), SERIAL_WRITE_TIMEOUT_MS) < (int)strlen(buf)) {
081c214e	144	sr_err("Failed to send.");
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
173378f0 BV	200	static int recv_stat_u124x(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);
	207	sr_spew("STAT response '%s'.", s);
	208
	209	/* Max, Min or Avg mode -- no way to tell which, so we'll
	210	* set both flags to denote it's not a normal measurement. */
	211	if (s[0] == '1')
	212	devc->cur_mqflags \|= SR_MQFLAG_MAX \| SR_MQFLAG_MIN;
	213	else
	214	devc->cur_mqflags &= ~(SR_MQFLAG_MAX \| SR_MQFLAG_MIN);
	215
	216	if (s[1] == '1')
	217	devc->cur_mqflags \|= SR_MQFLAG_RELATIVE;
	218	else
	219	devc->cur_mqflags &= ~SR_MQFLAG_RELATIVE;
	220
	221	/* Hold mode. */
	222	if (s[7] == '1')
	223	devc->cur_mqflags \|= SR_MQFLAG_HOLD;
	224	else
	225	devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
	226
	227	g_free(s);
	228
	229	return SR_OK;
	230	}
	231
8c0152f2 BV	232	static int recv_stat_u125x(const struct sr_dev_inst sdi, GMatchInfo match)
	233	{
	234	struct dev_context *devc;
	235	char *s;
	236
	237	devc = sdi->priv;
	238	s = g_match_info_fetch(match, 1);
38d326e8	239	sr_spew("STAT response '%s'.", s);
8c0152f2 BV	240
	241	/* Peak hold mode. */
	242	if (s[4] == '1')
	243	devc->cur_mqflags \|= SR_MQFLAG_MAX;
	244	else
	245	devc->cur_mqflags &= ~SR_MQFLAG_MAX;
	246
	247	/* Triggered hold mode. */
	248	if (s[7] == '1')
	249	devc->cur_mqflags \|= SR_MQFLAG_HOLD;
	250	else
	251	devc->cur_mqflags &= ~SR_MQFLAG_HOLD;
	252
	253	g_free(s);
	254
	255	return SR_OK;
	256	}
	257
a4394fb3	258	static int send_fetc(const struct sr_dev_inst *sdi)
e93cdf42	259	{
e93cdf42 BV	260	return agdmm_send(sdi, "FETC?");
	261	}
	262
a4394fb3	263	static int recv_fetc(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42 BV	264	{
	265	struct dev_context *devc;
	266	struct sr_datafeed_packet packet;
	267	struct sr_datafeed_analog analog;
	268	float fvalue;
f216eb86	269	const char *s;
fe9d5abe	270	char *mstr;
e93cdf42	271
38d326e8	272	sr_spew("FETC reply '%s'.", g_match_info_get_string(match));
e93cdf42 BV	273	devc = sdi->priv;
	274
	275	if (devc->cur_mq == -1)
	276	/* Haven't seen configuration yet, so can't know what
	277	* the fetched float means. Not really an error, we'll
	278	* get metadata soon enough. */
	279	return SR_OK;
	280
f216eb86 BV	281	s = g_match_info_get_string(match);
f216eb86 BV	282	if (!strcmp(s, "-9.90000000E+37") \|\| !strcmp(s, "+9.90000000E+37")) {
74ac7d7f	283	/* An invalid measurement shows up on the display as "O.L", but
e93cdf42 BV	284	* comes through like this. Since comparing 38-digit floats
	285	* is rather problematic, we'll cut through this here. */
	286	fvalue = NAN;
	287	} else {
	288	mstr = g_match_info_fetch(match, 1);
7c03b564	289	if (sr_atof_ascii(mstr, &fvalue) != SR_OK) {
fe9d5abe	290	g_free(mstr);
51b92b7d	291	sr_dbg("Invalid float.");
e93cdf42 BV	292	return SR_ERR;
e93cdf42 BV	293	}
fe9d5abe	294	g_free(mstr);
e93cdf42 BV	295	if (devc->cur_divider > 0)
	296	fvalue /= devc->cur_divider;
	297	}
	298
	299	memset(&analog, 0, sizeof(struct sr_datafeed_analog));
	300	analog.mq = devc->cur_mq;
e6b021f3 BV	301	analog.unit = devc->cur_unit;
e6b021f3 BV	302	analog.mqflags = devc->cur_mqflags;
ba7dd8bb	303	analog.channels = sdi->channels;
e93cdf42 BV	304	analog.num_samples = 1;
	305	analog.data = &fvalue;
	306	packet.type = SR_DF_ANALOG;
	307	packet.payload = &analog;
	308	sr_session_send(devc->cb_data, &packet);
	309
	310	devc->num_samples++;
	311
	312	return SR_OK;
	313	}
	314
a4394fb3	315	static int send_conf(const struct sr_dev_inst *sdi)
e93cdf42	316	{
e93cdf42 BV	317	return agdmm_send(sdi, "CONF?");
	318	}
	319
a4394fb3	320	static int recv_conf_u123x(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42 BV	321	{
	322	struct dev_context *devc;
	323	char *mstr;
	324
38d326e8	325	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
e93cdf42 BV	326	devc = sdi->priv;
	327	mstr = g_match_info_fetch(match, 1);
	328	if (!strcmp(mstr, "V")) {
	329	devc->cur_mq = SR_MQ_VOLTAGE;
e6b021f3 BV	330	devc->cur_unit = SR_UNIT_VOLT;
e6b021f3 BV	331	devc->cur_mqflags = 0;
e93cdf42	332	devc->cur_divider = 0;
0c5f2abc	333	} else if (!strcmp(mstr, "MV")) {
e6b021f3 BV	334	if (devc->mode_tempaux) {
e6b021f3 BV	335	devc->cur_mq = SR_MQ_TEMPERATURE;
f3f19d11 UH	336	/* No way to detect whether Fahrenheit or Celsius
f3f19d11 UH	337	* is used, so we'll just default to Celsius. */
e6b021f3 BV	338	devc->cur_unit = SR_UNIT_CELSIUS;
	339	devc->cur_mqflags = 0;
	340	devc->cur_divider = 0;
	341	} else {
	342	devc->cur_mq = SR_MQ_VOLTAGE;
	343	devc->cur_unit = SR_UNIT_VOLT;
	344	devc->cur_mqflags = 0;
	345	devc->cur_divider = 1000;
	346	}
0c5f2abc	347	} else if (!strcmp(mstr, "A")) {
e93cdf42	348	devc->cur_mq = SR_MQ_CURRENT;
e6b021f3 BV	349	devc->cur_unit = SR_UNIT_AMPERE;
e6b021f3 BV	350	devc->cur_mqflags = 0;
e93cdf42	351	devc->cur_divider = 0;
0c5f2abc	352	} else if (!strcmp(mstr, "UA")) {
e93cdf42	353	devc->cur_mq = SR_MQ_CURRENT;
e6b021f3 BV	354	devc->cur_unit = SR_UNIT_AMPERE;
e6b021f3 BV	355	devc->cur_mqflags = 0;
e93cdf42	356	devc->cur_divider = 1000000;
0c5f2abc	357	} else if (!strcmp(mstr, "FREQ")) {
e93cdf42	358	devc->cur_mq = SR_MQ_FREQUENCY;
e6b021f3 BV	359	devc->cur_unit = SR_UNIT_HERTZ;
e6b021f3 BV	360	devc->cur_mqflags = 0;
e93cdf42	361	devc->cur_divider = 0;
0c5f2abc	362	} else if (!strcmp(mstr, "RES")) {
e6b021f3 BV	363	if (devc->mode_continuity) {
	364	devc->cur_mq = SR_MQ_CONTINUITY;
	365	devc->cur_unit = SR_UNIT_BOOLEAN;
	366	} else {
	367	devc->cur_mq = SR_MQ_RESISTANCE;
	368	devc->cur_unit = SR_UNIT_OHM;
	369	}
	370	devc->cur_mqflags = 0;
e93cdf42	371	devc->cur_divider = 0;
0c5f2abc	372	} else if (!strcmp(mstr, "CAP")) {
e93cdf42	373	devc->cur_mq = SR_MQ_CAPACITANCE;
e6b021f3 BV	374	devc->cur_unit = SR_UNIT_FARAD;
e6b021f3 BV	375	devc->cur_mqflags = 0;
e93cdf42	376	devc->cur_divider = 0;
e93cdf42	377	} else
38d326e8	378	sr_dbg("Unknown first argument.");
e93cdf42 BV	379	g_free(mstr);
e93cdf42 BV	380
e066c32a BV	381	if (g_match_info_get_match_count(match) == 4) {
e066c32a BV	382	mstr = g_match_info_fetch(match, 3);
e93cdf42	383	/* Third value, if present, is always AC or DC. */
51b92b7d	384	if (!strcmp(mstr, "AC")) {
e6b021f3	385	devc->cur_mqflags \|= SR_MQFLAG_AC;
51b92b7d BV	386	if (devc->cur_mq == SR_MQ_VOLTAGE)
	387	devc->cur_mqflags \|= SR_MQFLAG_RMS;
	388	} else if (!strcmp(mstr, "DC")) {
e6b021f3	389	devc->cur_mqflags \|= SR_MQFLAG_DC;
51b92b7d	390	} else {
a965748a	391	sr_dbg("Unknown first argument '%s'.", mstr);
51b92b7d	392	}
e93cdf42	393	g_free(mstr);
e6b021f3 BV	394	} else
e6b021f3 BV	395	devc->cur_mqflags &= ~(SR_MQFLAG_AC \| SR_MQFLAG_DC);
e93cdf42 BV	396
	397	return SR_OK;
	398	}
	399
173378f0	400	static int recv_conf_u124x_5x(const struct sr_dev_inst sdi, GMatchInfo match)
8c0152f2 BV	401	{
8c0152f2 BV	402	struct dev_context *devc;
a965748a	403	char mstr, m2;
8c0152f2	404
38d326e8	405	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
8c0152f2 BV	406	devc = sdi->priv;
	407	mstr = g_match_info_fetch(match, 1);
	408	if (!strncmp(mstr, "VOLT", 4)) {
	409	devc->cur_mq = SR_MQ_VOLTAGE;
	410	devc->cur_unit = SR_UNIT_VOLT;
	411	devc->cur_mqflags = 0;
	412	devc->cur_divider = 0;
	413	if (mstr[4] == ':') {
ee2bcdfc	414	if (!strncmp(mstr + 5, "AC", 2)) {
51b92b7d	415	devc->cur_mqflags \|= SR_MQFLAG_AC \| SR_MQFLAG_RMS;
ee2bcdfc	416	} else if (!strncmp(mstr + 5, "DC", 2)) {
8c0152f2	417	devc->cur_mqflags \|= SR_MQFLAG_DC;
ee2bcdfc	418	} else if (!strncmp(mstr + 5, "ACDC", 4)) {
51b92b7d BV	419	/* AC + DC offset */
	420	devc->cur_mqflags \|= SR_MQFLAG_AC \| SR_MQFLAG_DC \| SR_MQFLAG_RMS;
	421	} else {
8c0152f2	422	devc->cur_mqflags &= ~(SR_MQFLAG_AC \| SR_MQFLAG_DC);
51b92b7d	423	}
8c0152f2 BV	424	} else
8c0152f2 BV	425	devc->cur_mqflags &= ~(SR_MQFLAG_AC \| SR_MQFLAG_DC);
0c5f2abc	426	} else if (!strcmp(mstr, "CURR")) {
8c0152f2 BV	427	devc->cur_mq = SR_MQ_CURRENT;
	428	devc->cur_unit = SR_UNIT_AMPERE;
	429	devc->cur_mqflags = 0;
	430	devc->cur_divider = 0;
0c5f2abc	431	} else if (!strcmp(mstr, "RES")) {
a965748a BV	432	devc->cur_mq = SR_MQ_RESISTANCE;
	433	devc->cur_unit = SR_UNIT_OHM;
	434	devc->cur_mqflags = 0;
	435	devc->cur_divider = 0;
0c5f2abc	436	} else if (!strcmp(mstr, "CAP")) {
a965748a BV	437	devc->cur_mq = SR_MQ_CAPACITANCE;
a965748a BV	438	devc->cur_unit = SR_UNIT_FARAD;
8c0152f2 BV	439	devc->cur_mqflags = 0;
8c0152f2 BV	440	devc->cur_divider = 0;
0c5f2abc	441	} else if (!strcmp(mstr, "FREQ")) {
a965748a BV	442	devc->cur_mq = SR_MQ_FREQUENCY;
	443	devc->cur_unit = SR_UNIT_HERTZ;
	444	devc->cur_mqflags = 0;
	445	devc->cur_divider = 0;
0c5f2abc	446	} else if (!strcmp(mstr, "CONT")) {
a965748a BV	447	devc->cur_mq = SR_MQ_CONTINUITY;
	448	devc->cur_unit = SR_UNIT_BOOLEAN;
	449	devc->cur_mqflags = 0;
	450	devc->cur_divider = 0;
0c5f2abc	451	} else if (!strncmp(mstr, "T1", 2) \|\| !strncmp(mstr, "T2", 2)) {
a965748a BV	452	devc->cur_mq = SR_MQ_TEMPERATURE;
	453	m2 = g_match_info_fetch(match, 2);
	454	if (!strcmp(m2, "FAR"))
	455	devc->cur_unit = SR_UNIT_FAHRENHEIT;
	456	else
	457	devc->cur_unit = SR_UNIT_CELSIUS;
	458	g_free(m2);
	459	devc->cur_mqflags = 0;
	460	devc->cur_divider = 0;
0c5f2abc	461	} else if (!strcmp(mstr, "SCOU")) {
a965748a BV	462	/*
	463	* Switch counter, not supported. Not sure what values
	464	* come from FETC in this mode, or how they would map
	465	* into libsigrok.
	466	*/
0c5f2abc	467	} else if (!strncmp(mstr, "CPER:", 5)) {
110fe1b4 BV	468	devc->cur_mq = SR_MQ_CURRENT;
	469	devc->cur_unit = SR_UNIT_PERCENTAGE;
	470	devc->cur_mqflags = 0;
	471	devc->cur_divider = 0;
51b92b7d	472	} else {
a965748a	473	sr_dbg("Unknown first argument '%s'.", mstr);
51b92b7d	474	}
8c0152f2 BV	475	g_free(mstr);
8c0152f2 BV	476
8c0152f2 BV	477	return SR_OK;
	478	}
	479
a4394fb3 BV	480	static int recv_conf(const struct sr_dev_inst sdi, GMatchInfo match)
	481	{
	482	struct dev_context *devc;
	483	char *mstr;
	484
38d326e8	485	sr_spew("CONF? response '%s'.", g_match_info_get_string(match));
a4394fb3 BV	486	devc = sdi->priv;
a4394fb3 BV	487	mstr = g_match_info_fetch(match, 1);
0c5f2abc	488	if (!strcmp(mstr, "DIOD")) {
a4394fb3 BV	489	devc->cur_mq = SR_MQ_VOLTAGE;
	490	devc->cur_unit = SR_UNIT_VOLT;
	491	devc->cur_mqflags = SR_MQFLAG_DIODE;
	492	devc->cur_divider = 0;
8c0152f2	493	} else
38d326e8	494	sr_dbg("Unknown single argument.");
a4394fb3 BV	495	g_free(mstr);
	496
	497	return SR_OK;
	498	}
	499
81599cc5 BV	500	/* This comes in whenever the rotary switch is changed to a new position.
	501	* We could use it to determine the major measurement mode, but we already
	502	* have the output of CONF? for that, which is more detailed. However
	503	* we do need to catch this here, or it'll show up in some other output. */
a4394fb3	504	static int recv_switch(const struct sr_dev_inst sdi, GMatchInfo match)
e93cdf42	505	{
e93cdf42 BV	506	(void)sdi;
e93cdf42 BV	507
38d326e8	508	sr_spew("Switch '%s'.", g_match_info_get_string(match));
e93cdf42 BV	509
	510	return SR_OK;
	511	}
	512
f857bd92 BV	513	/* Poll keys/switches and values at 7Hz, mode at 1Hz. */
f857bd92 BV	514	SR_PRIV const struct agdmm_job agdmm_jobs_u12xx[] = {
a4394fb3 BV	515	{ 143, send_stat },
	516	{ 1000, send_conf },
	517	{ 143, send_fetc },
e93cdf42 BV	518	{ 0, NULL }
	519	};
	520
8c0152f2 BV	521	SR_PRIV const struct agdmm_recv agdmm_recvs_u123x[] = {
8c0152f2 BV	522	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u123x },
a4394fb3 BV	523	{ "^\\*([0-9])$", recv_switch },
	524	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
	525	{ "^\"(V\|MV\|A\|UA\|FREQ),(\\d),(AC\|DC)\"$", recv_conf_u123x },
	526	{ "^\"(RES\|CAP),(\\d)\"$", recv_conf_u123x},
	527	{ "^\"(DIOD)\"$", recv_conf },
e93cdf42 BV	528	{ NULL, NULL }
	529	};
	530
173378f0 BV	531	SR_PRIV const struct agdmm_recv agdmm_recvs_u124x[] = {
	532	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u124x },
	533	{ "^\\*([0-9])$", recv_switch },
	534	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
110fe1b4	535	{ "^\"(VOLT\|CURR\|RES\|CAP\|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
ee2bcdfc	536	{ "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
110fe1b4	537	{ "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
a965748a	538	{ "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
173378f0 BV	539	{ "^\"(DIOD)\"$", recv_conf },
	540	{ NULL, NULL }
	541	};
	542
8c0152f2 BV	543	SR_PRIV const struct agdmm_recv agdmm_recvs_u125x[] = {
	544	{ "^\"(\\d\\d.{18}\\d)\"$", recv_stat_u125x },
	545	{ "^\\*([0-9])$", recv_switch },
	546	{ "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", recv_fetc },
110fe1b4	547	{ "^\"(VOLT\|CURR\|RES\|CAP\|FREQ) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
ee2bcdfc	548	{ "^\"(VOLT:[ACD]+) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
110fe1b4	549	{ "^\"(CPER:[40]-20mA) ([-+][0-9\\.E\\-+]+),([-+][0-9\\.E\\-+]+)\"$", recv_conf_u124x_5x },
c7f5219e	550	{ "^\"(T[0-9]:[A-Z]+) ([A-Z]+)\"$", recv_conf_u124x_5x },
8c0152f2 BV	551	{ "^\"(DIOD)\"$", recv_conf },
	552	{ NULL, NULL }
	553	};