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/*
* kiss.h Define the KISS device driver interface and constants.
*
* NOTE: THIS FILE WILL BE MOVED TO THE LINUX INCLUDE DIRECTORY
* AS SOON AS POSSIBLE!
*
* Version: @(#)kiss.h 1.2.0 03/28/93
*
* Fixes:
* Alan Cox : Added slip mtu field.
* Matt Dillon : Printable slip (borrowed from net2e)
* Alan Cox : Added SL_SLIP_LOTS
* Dmitry Gorodchanin : A lot of changes in the 'struct slip'
* Dmitry Gorodchanin : Added CSLIP statistics.
* Stanislav Voronyi : Make line checking as created by
* Igor Chechik, RELCOM Corp.
* Craig Schlenter : Fixed #define bug that caused
* CSLIP telnets to hang in 1.3.61-6
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
*/
#ifndef _LINUX_KISS_H
#define _LINUX_KISS_H
#include <linux/config.h>
#include <linux/netdevice.h>
#define KISS_NRUNIT 16
#define KISS_MTU (256+MAX_HEADER)
/* KISS protocol characters. */
#define END 0300 /* indicates end of frame */
#define ESC 0333 /* indicates byte stuffing */
#define ESC_END 0334 /* ESC ESC_END means END 'data' */
#define ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */
typedef enum {
KISS_MODE_NORMAL,
KISS_MODE_ADAPTIVE,
KISS_MODE_FLEX,
KISS_MODE_SMACK,
KISS_MODE_COMPAT,
KISS_MODE_TNN_TOKENRING
} kiss_crcmode_t;
typedef enum {
KISS_PARAM_TXDELAY=1,
KISS_PARAM_PPERS,
KISS_PARAM_SLOT,
KISS_PARAM_TXTAIL,
KISS_PARAM_DUPLEX
} kiss_command_t;
struct kiss {
struct tty_struct *tty; /* ptr to TTY structure */
struct net_device *dev; /* easy for intr handling */
spinlock_t lock;
/* These are pointers to the malloc()ed frame buffers. */
unsigned char *rbuff; /* receiver buffer */
int rcount; /* received chars counter */
unsigned char *xbuff; /* transmitter buffer */
unsigned char *xhead; /* pointer to next byte to XMIT */
int xleft; /* bytes left in XMIT queue */
int mtu; /* Our mtu (to spot changes!) */
int buffsize; /* Max buffers sizes */
struct {
int in_use:1;
int escape:1;
int error:1;
} flags;
kiss_crcmode_t mode; /* KISS mode */
kdev_t line;
pid_t pid;
struct net_device_stats stats; /* statistics */
struct ax25_dev ax25dev;
};
typedef struct kiss_ctrl {
struct kiss ctrl; /* KISS things */
struct net_device dev; /* the device */
} kiss_ctrl_t;
#endif /* _LINUX_KISS.H */
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