/***************************************************************************
** File: microcom.h
** Description: the main header file for microcom project
**
** Copyright (C)1999 Anca and Lucian Jurubita <ljurubita@hotmail.com>.
** All rights reserved.
****************************************************************************
** 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 2
** 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 at www.gnu.org
****************************************************************************
** Rev. 1.0 - Feb. 2000
** Rev. 1.02 - June 2000
****************************************************************************/
#ifndef MICROCOM_H
#define MICROCOM_H
#include <sys/time.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <signal.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include <assert.h>

#define DEFAULT_BAUDRATE 115200
#define DEFAULT_DEVICE "/dev/ttyS0"
#define DEFAULT_CAN_INTERFACE "can0"
#define DEFAULT_CAN_ID (0x200)

struct ios_ops {
	ssize_t (*write)(struct ios_ops *, const void *buf, size_t count);
	ssize_t (*read)(struct ios_ops *, void *buf, size_t count);
	int (*set_speed)(struct ios_ops *, unsigned long speed);
#define FLOW_NONE	0
#define FLOW_SOFT	1
#define FLOW_HARD	2
	int (*set_flow)(struct ios_ops *, int flow);
#define PIN_DTR	1
#define PIN_RTS	2
	int (*set_handshake_line)(struct ios_ops *, int pin, int enable);
	int (*send_break)(struct ios_ops *);
	void (*exit)(struct ios_ops *);
	int fd;
};

int mux_loop(struct ios_ops *); /* mux.c */
void init_terminal(void);
void restore_terminal(void);

struct ios_ops *telnet_init(char *hostport);
struct ios_ops *serial_init(char *dev);
struct ios_ops *can_init(char *interfaceid);

void microcom_exit(int signal);

void microcom_cmd_usage(char *str);

void main_usage(int exitcode, char *str, char *dev);

extern struct ios_ops *ios;
extern int debug;
extern int opt_force;
extern int listenonly;
extern char *answerback;

struct cmd {
	char *name;
	int(*fn)(int argc, char *argv[]);
	struct cmd *next;
	char *info;
	char *help;
};

int logfile_open(const char *path);
void logfile_close(void);

int register_command(struct cmd *cmd);
#define MICROCOM_CMD_START 100
#define MICROCOM_CMD_USAGE 101
extern struct cmd *commands;

#define for_each_command(cmd) for (cmd = commands; cmd; cmd = cmd->next)

void commands_init(void);
void commands_fsl_imx_init(void);
#define ARRAY_SIZE(arr)            (sizeof(arr) / sizeof((arr)[0]))

/*
 * min()/max()/clamp() macros that also do
 * strict type-checking.. See the
 * "unnecessary" pointer comparison.
 */
#define min(x, y) ({                            \
        typeof(x) _min1 = (x);                  \
        typeof(y) _min2 = (y);                  \
        (void) (&_min1 == &_min2);              \
        _min1 < _min2 ? _min1 : _min2; })

#define max(x, y) ({                            \
        typeof(x) _max1 = (x);                  \
        typeof(y) _max2 = (y);                  \
        (void) (&_max1 == &_max2);              \
        _max1 > _max2 ? _max1 : _max2; })

extern unsigned long current_speed;
extern int current_flow;
int do_commandline(void);
int do_script(char *script);

#define dbg_printf(fmt,args...)  ({ if (debug) printf(fmt ,##args); })

/*
 * Some telnet options according to
 * https://www.iana.org/assignments/telnet-options/telnet-options.xhtmls
 */

#define TELNET_OPTION_BINARY_TRANSMISSION		0
#define TELNET_OPTION_ECHO				1
#define TELNET_OPTION_SUPPRESS_GO_AHEAD			3
#define TELNET_OPTION_COM_PORT_CONTROL			44

/* RFC2217 */
#define SET_BAUDRATE_CS		  1
#define SET_DATASIZE_CS		  2
#define SET_PARITY_CS		  3
#define SET_STOPSIZE_CS		  4
#define SET_CONTROL_CS		  5
#define NOTIFY_LINESTATE_CS	  6
#define NOTIFY_MODEMSTATE_CS	  7
#define FLOWCONTROL_SUSPEND_CS	  8
#define FLOWCONTROL_RESUME_CS	  9
#define SET_LINESTATE_MASK_CS	 10
#define SET_MODEMSTATE_MASK_CS	 11
#define PURGE_DATA_CS		 12
#define SET_BAUDRATE_SC		101
#define SET_DATASIZE_SC		102
#define SET_PARITY_SC		103
#define SET_STOPSIZE_SC		104
#define SET_CONTROL_SC		105
#define NOTIFY_LINESTATE_SC	106
#define NOTIFY_MODEMSTATE_SC	107
#define FLOWCONTROL_SUSPEND_SC	108
#define FLOWCONTROL_RESUME_SC	109
#define SET_LINESTATE_MASK_SC	110
#define SET_MODEMSTATE_MASK_SC	111
#define PURGE_DATA_SC		112

#endif /* MICROCOM_H */