+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
- * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
- *
- * 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 <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <errno.h>
-#include <glib.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "protocol.h"
-
-static void log_dmm_packet(const uint8_t *buf)
-{
- sr_dbg("DMM packet: %02x %02x %02x %02x %02x %02x %02x"
- " %02x %02x %02x %02x %02x %02x %02x",
- buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6],
- buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
-}
-
-SR_PRIV void dmm_details_dt4000zc(struct sr_datafeed_analog *analog, void *info)
-{
- dmm_details_tp4000zc(analog, info); /* Same as TP4000ZC. */
-}
-
-SR_PRIV void dmm_details_tp4000zc(struct sr_datafeed_analog *analog, void *info)
-{
- struct fs9721_info *info_local;
-
- info_local = (struct fs9721_info *)info;
-
- /* User-defined FS9721_LP3 flag 'c2c1_10' means temperature. */
- if (info_local->is_c2c1_10) {
- analog->mq = SR_MQ_TEMPERATURE;
- analog->unit = SR_UNIT_CELSIUS;
- }
-}
-
-SR_PRIV void dmm_details_va18b(struct sr_datafeed_analog *analog, void *info)
-{
- struct fs9721_info *info_local;
-
- info_local = (struct fs9721_info *)info;
-
- /* User-defined FS9721_LP3 flag 'c2c1_01' means temperature. */
- if (info_local->is_c2c1_01) {
- analog->mq = SR_MQ_TEMPERATURE;
- analog->unit = SR_UNIT_CELSIUS;
- }
-}
-
-SR_PRIV void dmm_details_pce_dm32(struct sr_datafeed_analog *analog, void *info)
-{
- struct fs9721_info *info_local;
-
- info_local = (struct fs9721_info *)info;
-
- /* User-defined FS9721_LP3 flag 'c2c1_01' means temperature (F). */
- if (info_local->is_c2c1_01) {
- analog->mq = SR_MQ_TEMPERATURE;
- analog->unit = SR_UNIT_FAHRENHEIT;
- }
-
- /* User-defined FS9721_LP3 flag 'c2c1_10' means temperature (C). */
- if (info_local->is_c2c1_10) {
- analog->mq = SR_MQ_TEMPERATURE;
- analog->unit = SR_UNIT_CELSIUS;
- }
-}
-
-static void handle_packet(const uint8_t *buf, struct dev_context *devc,
- int dmm, void *info)
-{
- float floatval;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_analog *analog;
-
- log_dmm_packet(buf);
-
- if (!(analog = g_try_malloc0(sizeof(struct sr_datafeed_analog)))) {
- sr_err("Analog packet malloc failed.");
- return;
- }
-
- analog->num_samples = 1;
- analog->mq = -1;
-
- dmms[dmm].packet_parse(buf, &floatval, analog, info);
- analog->data = &floatval;
-
- /* If this DMM needs additional handling, call the resp. function. */
- if (dmms[dmm].dmm_details)
- dmms[dmm].dmm_details(analog, info);
-
- if (analog->mq != -1) {
- /* Got a measurement. */
- packet.type = SR_DF_ANALOG;
- packet.payload = analog;
- sr_session_send(devc->cb_data, &packet);
- devc->num_samples++;
- }
-
- g_free(analog);
-}
-
-static void handle_new_data(struct dev_context *devc, int dmm, void *info)
-{
- int len, i, offset = 0;
-
- /* Try to get as much data as the buffer can hold. */
- len = DMM_BUFSIZE - devc->buflen;
- len = serial_read(devc->serial, devc->buf + devc->buflen, len);
- if (len < 1) {
- sr_err("Serial port read error: %d.", len);
- return;
- }
- devc->buflen += len;
-
- /* Now look for packets in that data. */
- while ((devc->buflen - offset) >= dmms[dmm].packet_size) {
- if (dmms[dmm].packet_valid(devc->buf + offset)) {
- handle_packet(devc->buf + offset, devc, dmm, info);
- offset += dmms[dmm].packet_size;
- } else {
- offset++;
- }
- }
-
- /* If we have any data left, move it to the beginning of our buffer. */
- for (i = 0; i < devc->buflen - offset; i++)
- devc->buf[i] = devc->buf[offset + i];
- devc->buflen -= offset;
-}
-
-static int receive_data(int fd, int revents, int dmm, void *info, void *cb_data)
-{
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
- int ret;
-
- (void)fd;
-
- if (!(sdi = cb_data))
- return TRUE;
-
- if (!(devc = sdi->priv))
- return TRUE;
-
- if (revents == G_IO_IN) {
- /* Serial data arrived. */
- handle_new_data(devc, dmm, info);
- } else {
- /* Timeout, send another packet request (if DMM needs it). */
- if (dmms[dmm].packet_request) {
- ret = dmms[dmm].packet_request(devc->serial);
- if (ret < 0) {
- sr_err("Failed to request packet: %d.", ret);
- return FALSE;
- }
- }
- }
-
- if (devc->num_samples >= devc->limit_samples) {
- sr_info("Requested number of samples reached, stopping.");
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
-
- return TRUE;
-}
-
-#define RECEIVE_DATA(ID_UPPER, DMM_DRIVER) \
-SR_PRIV int receive_data_##ID_UPPER(int fd, int revents, void *cb_data) { \
- struct DMM_DRIVER##_info info; \
- return receive_data(fd, revents, ID_UPPER, &info, cb_data); }
-
-/* Driver-specific receive_data() wrappers */
-RECEIVE_DATA(DIGITEK_DT4000ZC, fs9721)
-RECEIVE_DATA(TEKPOWER_TP4000ZC, fs9721)
-RECEIVE_DATA(METEX_ME31, metex14)
-RECEIVE_DATA(PEAKTECH_3410, metex14)
-RECEIVE_DATA(MASTECH_MAS345, metex14)
-RECEIVE_DATA(VA_VA18B, fs9721)
-RECEIVE_DATA(METEX_M3640D, metex14)
-RECEIVE_DATA(PEAKTECH_4370, metex14)
-RECEIVE_DATA(PCE_PCE_DM32, fs9721)
-RECEIVE_DATA(RADIOSHACK_22_168, metex14)
-RECEIVE_DATA(RADIOSHACK_22_812, rs9lcd)
-RECEIVE_DATA(VOLTCRAFT_VC820, fs9721)
-RECEIVE_DATA(VOLTCRAFT_VC840, fs9721)
projects / libsigrok.git / blobdiff