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l2_appl.h
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l2_appl.h
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/***************************************************************
BayCom(R) Packet-Radio fuer IBM PC
OpenBayCom-Mailbox
-----------------------------------------------
Definitions / Declarations L2 Service Interface
-----------------------------------------------
Copyright (C) Florian Radlherr
Taubenbergstr. 32
83627 Warngau
Alle Rechte vorbehalten / All Rights reserved
***************************************************************/
/*************************** Data Types *******************************/
#ifndef _L2_APPL_H
#define _L2_APPL_H
typedef enum lstate_t // Linkstate according AX.25 Version 2
{ disconnected,
link_setup,
frame_reject,
disc_request,
info_transfer,
rej_sent,
wait_ack
} lstate_t;
typedef enum linkmsg_t
{ msg_nomessage,
msg_connected,
msg_disconnected,
msg_failure,
msg_frmr,
msg_busy,
msg_conrequest
} linkmsg_t;
typedef struct mheard_t
{ byte call[7];
byte viacall[7];
unsigned frames;
long rtime;
byte kanal;
} mheard_t;
/**************************** Interface *******************************/
/* service interface functions */
int tnc_init(unsigned int maxstreams);
/* setup of tnc connection. Returns maximum of handled streams */
void tnc_flush(void);
/* pack l2-data and send it, if possible */
//void tnc_putf(char *format,...); // not used anywhere
/* put formatted data to selected stream, like printf */
void tnc_put(byte a);
/* put one character to selected stream */
int tnc_putfree(void);
/* return free bytes to send */
int tnc_get(void);
/* get one character. Returns EOF if nothing present */
int tnc_get_msg(void);
/* get one character of next message. Resturns EOF if no messages has to be
processed */
int tnc_getvalid(void);
/* returns, if RX-data is present. RX-Data is not fetched from RX-buffer */
void tnc_connect(char *mycall,char *call);
/* establishes a connection */
void tnc_disconnect(int mode);
/* closes a connection
mode 0: hard disconnect
1: normal disconnect
2: quit, wait for data acknowledged
5: disconnect all streams */
void tnc_dobeacon(void);
/* management functions, GET-operation */
char *get_partner(void);
lstate_t get_lstate(void);
int get_frack(void);
int get_outstanding(void);
int get_retries(void);
unsigned int get_channel(void);
int get_outgoing(void);
int get_l1state(void);
#define CH_TXB 0x80
#define CH_RXB 0x40
#define CH_PTT 0x20
#define CH_DCD 0x10
#define CH_FDX 0x08
#define CH_SLR 0x04
char *get_mycall(void);
char *get_concall(void);
unsigned get_logintime(void);
int get_free(void);
unsigned int get_channels(void);
int get_connects(unsigned int channel);
char *get_l1_mode(unsigned int channel);
int get_l1_txdelay(unsigned int channel);
int get_l1_xmitok(unsigned int channel);
char *get_monitor(void);
int get_qsonum(void);
char *get_version(void);
mheard_t *get_mhlist(void);
time_t get_ticker(void);
/* management functions, SET-operation */
void set_partner(char *call);
void set_mycall(char *calls);
void set_conok(int on);
void set_messages(int on);
void set_channel(unsigned int channel);
void set_stream(unsigned int stream_number);
void set_l1_mode(unsigned int channel,char *str);
void set_l1_txdelay(unsigned int channel,int txd);
void set_l1_xmitok(unsigned int channel,int xmitok);
void set_monitor(char *s);
void set_qsonum(int qsonum,int lstate);
void set_paclen(unsigned short paclen);
#endif