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/**
* Plaintext protocol according to DIN EN 62056-21
*
* This protocol uses OBIS to identify the readout data
* And is also sometimes called "D0"
*
* @package vzlogger
* @copyright Copyright (c) 2011 - 2023, The volkszaehler.org project
* @license http://www.gnu.org/licenses/gpl.txt GNU Public License
* @author Steffen Vogel <info@steffenvogel.de>
*/
/*
* This file is part of volkzaehler.org
*
* volkzaehler.org 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
* any later version.
*
* volkzaehler.org 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 volkszaehler.org. If not, see <http://www.gnu.org/licenses/>.
*/
// RW: added ack
#ifndef _D0_H_
#define _D0_H_
#define D0_BUFFER_LENGTH 1024
#include <termios.h>
#include <protocols/Protocol.hpp>
class MeterD0 : public vz::protocol::Protocol {
public:
MeterD0(std::list<Option> &options);
virtual ~MeterD0();
int open();
int close();
ssize_t read(std::vector<Reading> &rds, size_t n);
virtual bool allowInterval() const {
return _pull.size() ? true : false;
} // only allow conf setting interval if pull is set (otherwise meter sends autom.)
const char *host() const { return _host.c_str(); }
const char *device() const { return _device.c_str(); }
private:
std::string _host;
std::string _device;
std::string _dump_file;
int _baudrate;
int _baudrate_read;
parity_type_t _parity;
std::string _pull;
std::string _ack;
bool _auto_ack;
bool _wait_sync_end;
int _read_timeout_s;
int _baudrate_change_delay_ms;
int _reaction_time_ms; // reaction time t_r according to 62056-21
int _fd; /* file descriptor of port */
FILE *_dump_fd;
struct termios _oldtio; /* required to reset port */
/**
* Open socket
*
* @param node the hostname or ASCII encoded IP address
* @param the ASCII encoded portnum or service as in /etc/services
* @return file descriptor, <0 on error
*/
int _openSocket(const char *node, const char *service);
int _openDevice(struct termios *old_tio, speed_t baudrate);
enum DUMP_MODE { NONE, CTRL, DUMP_IN, DUMP_OUT };
DUMP_MODE _old_mode;
int _dump_pos;
void dump_file(DUMP_MODE mode, const char *str);
void dump_file(DUMP_MODE mode, const char *buf, size_t len);
void dump_file(const char &c) { dump_file(DUMP_IN, &c, 1); };
};
#endif /* _D0_H_ */
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