481 lines
12 KiB
C
481 lines
12 KiB
C
/*
|
|
* This file is part of the sigrok 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 "config.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("agilent-dmm: 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("agilent-dmm: 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("agilent-dmm: unknown line '%s'", devc->buf);
|
|
|
|
/* Done with this. */
|
|
devc->buflen = 0;
|
|
|
|
}
|
|
|
|
SR_PRIV int agdmm_receive_data(int fd, int revents, void *cb_data)
|
|
{
|
|
const struct sr_dev_inst *sdi;
|
|
struct dev_context *devc;
|
|
int len;
|
|
|
|
if (!(sdi = cb_data))
|
|
return TRUE;
|
|
|
|
if (!(devc = sdi->priv))
|
|
return TRUE;
|
|
|
|
if (revents == G_IO_IN) {
|
|
/* Serial data arrived. */
|
|
while(AGDMM_BUFSIZE - devc->buflen - 1 > 0) {
|
|
len = serial_read(fd, 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->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 dev_context *devc;
|
|
char buf[32];
|
|
|
|
devc = sdi->priv;
|
|
sr_spew("agilent-dmm: 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(devc->serial->fd, buf, strlen(buf)) == -1) {
|
|
sr_err("agilent-dmm: 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("agilent-dmm: 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("agilent-dmm: 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;
|
|
char *mstr, *eptr;
|
|
|
|
sr_spew("agilent-dmm: 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;
|
|
|
|
if (!strcmp(g_match_info_get_string(match), "+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);
|
|
fvalue = strtof(mstr, &eptr);
|
|
g_free(mstr);
|
|
if (fvalue == 0.0 && eptr == mstr) {
|
|
sr_err("agilent-dmm: invalid float");
|
|
return SR_ERR;
|
|
}
|
|
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.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("agilent-dmm: 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("agilent-dmm: 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;
|
|
else if (!strcmp(mstr, "DC"))
|
|
devc->cur_mqflags |= SR_MQFLAG_DC;
|
|
else
|
|
sr_dbg("agilent-dmm: 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("agilent-dmm: 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;
|
|
else if (!strcmp(mstr + 4, "DC"))
|
|
devc->cur_mqflags |= SR_MQFLAG_DC;
|
|
else
|
|
/* "ACDC" appears as well, no idea what it means. */
|
|
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("agilent-dmm: 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("agilent-dmm: 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("agilent-dmm: 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("agilent-dmm: switch '%s'", g_match_info_get_string(match));
|
|
|
|
return SR_OK;
|
|
}
|
|
|
|
|
|
SR_PRIV const struct agdmm_job agdmm_jobs_u123x[] = {
|
|
{ 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_job agdmm_jobs_u125x[] = {
|
|
{ 143, send_stat },
|
|
{ 1000, send_conf },
|
|
{ 143, send_fetc },
|
|
{ 0, 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 }
|
|
};
|
|
|
|
|