libsigrok/hardware/teleinfo/protocol.h

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/*
* 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/>.
*/
#ifndef LIBSIGROK_HARDWARE_TELEINFO_PROTOCOL_H
#define LIBSIGROK_HARDWARE_TELEINFO_PROTOCOL_H
#include <stdint.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
/* Message logging helpers with subsystem-specific prefix string. */
#define LOG_PREFIX "teleinfo: "
#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
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enum optarif {
OPTARIF_NONE,
OPTARIF_BASE,
OPTARIF_HC,
OPTARIF_EJP,
OPTARIF_BBR,
};
#define TELEINFO_BUF_SIZE 256
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/** Private, per-device-instance driver context. */
struct dev_context {
/* Acquisition settings */
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uint64_t limit_samples; /**< The sampling limit (in number of samples). */
uint64_t limit_msec; /**< The time limit (in milliseconds). */
void *session_cb_data; /**< Opaque pointer passed in by the frontend. */
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/* Operational state */
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enum optarif optarif; /**< The device mode (which mesures are reported) */
uint64_t num_samples; /**< The number of already received samples. */
int64_t start_time; /**< The time at which sampling started. */
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/* Temporary state across callbacks */
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uint8_t buf[TELEINFO_BUF_SIZE];
int buf_len;
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};
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SR_PRIV gboolean teleinfo_packet_valid(const uint8_t *buf);
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SR_PRIV int teleinfo_receive_data(int fd, int revents, void *cb_data);
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SR_PRIV int teleinfo_get_optarif(const uint8_t *buf);
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#endif