+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.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 <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 handle_packet(const uint8_t *rs_packet,
- struct dev_context *devc)
-{
- float rawval;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_analog *analog;
-
- /* TODO: Check malloc return value. */
- analog = g_try_malloc0(sizeof(struct sr_datafeed_analog));
- /* TODO: Check malloc return value. */
-
- analog->num_samples = 1;
- analog->mq = -1;
-
- sr_rs9lcd_parse(rs_packet, &rawval, analog, NULL);
- analog->data = &rawval;
-
- if (analog->mq != -1) {
- /* Got a measurement. */
- sr_spew("Value: %f.", rawval);
- 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 len;
- size_t i, offset = 0;
- uint8_t *rs_packet;
-
- /* Try to get as much data as the buffer can hold. */
- len = RS_DMM_BUFSIZE - devc->buflen;
- len = serial_read(devc->serial, devc->buf + devc->buflen, len);
- if (len < 1) {
- sr_err("Serial port read error.");
- return;
- }
- devc->buflen += len;
-
- /* Now look for packets in that data. */
- while ((devc->buflen - offset) >= RS_22_812_PACKET_SIZE) {
- rs_packet = (void *)(devc->buf + offset);
- if (sr_rs9lcd_packet_valid(rs_packet)) {
- handle_packet(rs_packet, devc);
- offset += RS_22_812_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;
-}
-
-SR_PRIV int radioshack_dmm_receive_data(int fd, int revents, void *cb_data)
-{
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
-
- (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);
- }
-
- if (devc->num_samples >= devc->limit_samples) {
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
- return TRUE;
- }
-
- return TRUE;
-}