+++ /dev/null
-/*
- * 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);
- }
-
- /* 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. */
- len = AGDMM_BUFSIZE - devc->buflen - 1;
- if (len > 0) {
- len = serial_read(fd, devc->buf + devc->buflen, len);
- if (len > 0) {
- devc->buflen += len;
- *(devc->buf + devc->buflen) = '\0';
- if (devc->buflen > 0 && *(devc->buf + devc->buflen - 1) == '\n')
- /* End of line */
- receive_line(sdi);
- }
- }
- }
-
- 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 agdmm_ident_send(const struct sr_dev_inst *sdi)
-{
-
- return agdmm_send(sdi, "*IDN?");
-}
-
-static int agdmm_ident_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
-{
-
- (void)sdi;
-
- sr_spew("got ident '%s'", g_match_info_get_string(match));
-
- return SR_OK;
-}
-
-static int agdmm_stat_send(const struct sr_dev_inst *sdi)
-{
-
- return agdmm_send(sdi, "STAT?");
-}
-
-static int agdmm_stat_recv(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("got stat '%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;
-}
-
-SR_PRIV int agdmm_fetc_send(const struct sr_dev_inst *sdi)
-{
-
- return agdmm_send(sdi, "FETC?");
-}
-
-SR_PRIV int agdmm_fetc_recv(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;
-}
-
-SR_PRIV int agdmm_conf_send(const struct sr_dev_inst *sdi)
-{
-
- return agdmm_send(sdi, "CONF?");
-}
-
-SR_PRIV int agdmm_conf_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
-{
- struct dev_context *devc;
- char *mstr;
-
- sr_spew("got conf '%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 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 first argument");
- g_free(mstr);
-
- if (g_match_info_get_match_count(match) == 3) {
- mstr = g_match_info_fetch(match, 1);
- /* 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;
-}
-
-SR_PRIV int agdmm_switch_recv(const struct sr_dev_inst *sdi, GMatchInfo *match)
-{
-
- (void)sdi;
-
- sr_spew("got switch '%s'", g_match_info_get_string(match));
-
- return SR_OK;
-}
-
-
-SR_PRIV const struct agdmm_job u123x_jobs[] = {
- { 1000, agdmm_ident_send },
- { 143, agdmm_stat_send },
- { 1000, agdmm_conf_send },
- { 143, agdmm_fetc_send },
- { 0, NULL }
-};
-
-SR_PRIV const struct agdmm_recv u123x_recvs[] = {
- { "^\"(\\d\\d.{18}\\d)\"$", agdmm_stat_recv },
- { "^\\*([0-9])$", agdmm_switch_recv },
- { "^([-+][0-9]\\.[0-9]{8}E[-+][0-9]{2})$", agdmm_fetc_recv },
- { "^\"(V|MV|A|UA|FREQ),(\\d),(AC|DC)\"$", agdmm_conf_recv },
- { "^\"(RES|CAP),(\\d)\"$", agdmm_conf_recv },
- { "^\"(DIOD)\"$", agdmm_conf_recv },
- { NULL, NULL }
-};
-
-
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