+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org>
- *
- * 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 <string.h>
-#include <glib.h>
-#include "protocol.h"
-
-#define STX 0x02
-#define ETX 0x03
-#define EOT 0x04
-#define LF 0x0A
-#define CR 0x0D
-
-static gboolean teleinfo_control_check(char *label, char *data, char control)
-{
- int sum = 0;
- while (*label)
- sum += *label++;
- sum += ' ';
- while (*data)
- sum += *data++;
- return ((sum & 0x3F) + ' ') == control;
-}
-
-static gint teleinfo_channel_compare(gconstpointer a, gconstpointer b)
-{
- const struct sr_channel *ch = a;
- const char *name = b;
- return strcmp(ch->name, name);
-}
-
-static struct sr_channel *teleinfo_find_channel(struct sr_dev_inst *sdi,
- const char *name)
-{
- GSList *elem = g_slist_find_custom(sdi->channels, name,
- teleinfo_channel_compare);
- return elem ? elem->data : NULL;
-}
-
-static void teleinfo_send_value(struct sr_dev_inst *sdi, const char *channel_name,
- float value, int mq, int unit)
-{
- struct dev_context *devc;
- struct sr_datafeed_packet packet;
- struct sr_datafeed_analog analog;
- struct sr_channel *ch;
-
- devc = sdi->priv;
- ch = teleinfo_find_channel(sdi, channel_name);
-
- if (!ch || !ch->enabled)
- return;
-
- memset(&analog, 0, sizeof(struct sr_datafeed_analog));
- analog.channels = g_slist_append(analog.channels, ch);
- analog.num_samples = 1;
- analog.mq = mq;
- analog.unit = unit;
- analog.data = &value;
-
- packet.type = SR_DF_ANALOG;
- packet.payload = &analog;
- sr_session_send(devc->session_cb_data, &packet);
- g_slist_free(analog.channels);
-}
-
-static void teleinfo_handle_mesurement(struct sr_dev_inst *sdi,
- const char *label, const char *data,
- char *optarif)
-{
- struct dev_context *devc;
- int v = atoi(data);
-
- if (!sdi || !(devc = sdi->priv)) {
- if (optarif && !strcmp(label, "OPTARIF"))
- strcpy(optarif, data);
- return;
- }
-
- if (!strcmp(label, "ADCO")) {
- devc->num_samples++;
- } else if (!strcmp(label, "BASE")) {
- teleinfo_send_value(sdi, "BASE", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "HCHP")) {
- teleinfo_send_value(sdi, "HP" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "HCHC")) {
- teleinfo_send_value(sdi, "HC" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "EJPHN")) {
- teleinfo_send_value(sdi, "HN" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "EJPHPM")) {
- teleinfo_send_value(sdi, "HPM" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "BBRHPJB")) {
- teleinfo_send_value(sdi, "HPJB", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "BBRHPJW")) {
- teleinfo_send_value(sdi, "HPJW", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "BBRHPJR")) {
- teleinfo_send_value(sdi, "HPJR", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "BBRHCJB")) {
- teleinfo_send_value(sdi, "HCJB", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "BBRHCJW")) {
- teleinfo_send_value(sdi, "HCJW", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "BBRHCJR")) {
- teleinfo_send_value(sdi, "HCJR", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR);
- } else if (!strcmp(label, "IINST")) {
- teleinfo_send_value(sdi, "IINST", v, SR_MQ_CURRENT, SR_UNIT_AMPERE);
- } else if (!strcmp(label, "PAPP")) {
- teleinfo_send_value(sdi, "PAPP", v, SR_MQ_POWER, SR_UNIT_VOLT_AMPERE);
- }
-}
-
-static gboolean teleinfo_parse_group(struct sr_dev_inst *sdi,
- const uint8_t *group, char *optarif)
-{
- char label[9], data[13], control, cr;
- const char *str = (const char *)group;
- if (sscanf(str, "\x0A%8s %13s %c%c", label, data, &control, &cr) != 4
- || cr != CR)
- return FALSE;
- if (!teleinfo_control_check(label, data, control))
- return FALSE;
- teleinfo_handle_mesurement(sdi, label, data, optarif);
- return TRUE;
-}
-
-static const uint8_t *teleinfo_parse_data(struct sr_dev_inst *sdi,
- const uint8_t *buf, int len,
- char *optarif)
-{
- const uint8_t *group_start, *group_end;
-
- group_start = memchr(buf, LF, len);
- if (!group_start)
- return NULL;
-
- group_end = memchr(group_start, CR, len - (group_start - buf));
- if (!group_end)
- return NULL;
-
- teleinfo_parse_group(sdi, group_start, optarif);
- return group_end + 1;
-}
-
-SR_PRIV int teleinfo_get_optarif(const uint8_t *buf)
-{
- const uint8_t *ptr = buf;
- char optarif[5] = { 0 };
-
- while ((ptr = teleinfo_parse_data(NULL, ptr, 292-(ptr-buf), optarif)));
- if (!strcmp(optarif, "BASE"))
- return OPTARIF_BASE;
- else if (!strcmp(optarif, "HC.."))
- return OPTARIF_HC;
- else if (!strcmp(optarif, "EJP."))
- return OPTARIF_EJP;
- else if (!strncmp(optarif, "BBR", 3))
- return OPTARIF_BBR;
- return OPTARIF_NONE;
-}
-
-SR_PRIV gboolean teleinfo_packet_valid(const uint8_t *buf)
-{
- return !!teleinfo_get_optarif(buf);
-}
-
-SR_PRIV int teleinfo_receive_data(int fd, int revents, void *cb_data)
-{
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
- struct sr_serial_dev_inst *serial;
- const uint8_t *ptr, *next_ptr, *end_ptr;
- int len;
- int64_t time;
-
- (void)fd;
-
- if (!(sdi = cb_data) || !(devc = sdi->priv) || revents != G_IO_IN)
- return TRUE;
- serial = sdi->conn;
-
- /* Try to get as much data as the buffer can hold. */
- len = TELEINFO_BUF_SIZE - devc->buf_len;
- len = serial_read(serial, devc->buf + devc->buf_len, len);
- if (len < 1) {
- sr_err("Serial port read error: %d.", len);
- return FALSE;
- }
- devc->buf_len += len;
-
- /* Now look for packets in that data. */
- ptr = devc->buf;
- end_ptr = ptr + devc->buf_len;
- while ((next_ptr = teleinfo_parse_data(sdi, ptr, end_ptr - ptr, NULL)))
- ptr = next_ptr;
-
- /* If we have any data left, move it to the beginning of our buffer. */
- memmove(devc->buf, ptr, end_ptr - ptr);
- devc->buf_len -= ptr - devc->buf;
-
- /* If buffer is full and no valid packet was found, wipe buffer. */
- if (devc->buf_len >= TELEINFO_BUF_SIZE) {
- devc->buf_len = 0;
- return FALSE;
- }
-
- if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
- sr_info("Requested number of samples reached.");
- sdi->driver->dev_acquisition_stop(sdi, devc->session_cb_data);
- return TRUE;
- }
-
- if (devc->limit_msec) {
- time = (g_get_monotonic_time() - devc->start_time) / 1000;
- if (time > (int64_t)devc->limit_msec) {
- sr_info("Requested time limit reached.");
- sdi->driver->dev_acquisition_stop(sdi, devc->session_cb_data);
- return TRUE;
- }
- }
- return TRUE;
-}
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