[linux-2.6-block.git] / drivers / net / wan / x25_asy.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_X25_ASY_H
#define _LINUX_X25_ASY_H

/* X.25 asy configuration. */
#define SL_NRUNIT	256		/* MAX number of X.25 channels;
					   This can be overridden with
					   insmod -ox25_asy_maxdev=nnn	*/
#define SL_MTU		256	

/* X25 async protocol characters. */
#define X25_END         0x7E		/* indicates end of frame	*/
#define X25_ESC         0x7D		/* indicates byte stuffing	*/
#define X25_ESCAPE(x)	((x)^0x20)
#define X25_UNESCAPE(x)	((x)^0x20)


struct x25_asy {
  int			magic;

  /* Various fields. */
  spinlock_t		lock;
  struct tty_struct	*tty;		/* ptr to TTY structure		*/
  struct net_device	*dev;		/* easy for intr handling	*/

  /* 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                   buffsize;       /* Max buffers sizes            */

  unsigned long		flags;		/* Flag values/ mode etc	*/
#define SLF_INUSE	0		/* Channel in use               */
#define SLF_ESCAPE	1               /* ESC received                 */
#define SLF_ERROR	2               /* Parity, etc. error           */
#define SLF_OUTWAIT	4		/* Waiting for output		*/
};


#define X25_ASY_MAGIC 0x5303

int x25_asy_init(struct net_device *dev);

#endif	/* _LINUX_X25_ASY.H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _LINUX_X25_ASY_H
	3	#define _LINUX_X25_ASY_H
	4
	5	/* X.25 asy configuration. */
	6	#define SL_NRUNIT 256 /* MAX number of X.25 channels;
	7	This can be overridden with
	8	insmod -ox25_asy_maxdev=nnn */
	9	#define SL_MTU 256
	10
	11	/* X25 async protocol characters. */
	12	#define X25_END 0x7E /* indicates end of frame */
	13	#define X25_ESC 0x7D /* indicates byte stuffing */
	14	#define X25_ESCAPE(x) ((x)^0x20)
	15	#define X25_UNESCAPE(x) ((x)^0x20)
	16
	17
	18	struct x25_asy {
	19	int magic;
	20
	21	/* Various fields. */
	22	spinlock_t lock;
	23	struct tty_struct tty; / ptr to TTY structure */
	24	struct net_device dev; / easy for intr handling */
	25
	26	/* These are pointers to the malloc()ed frame buffers. */
	27	unsigned char rbuff; / receiver buffer */
	28	int rcount; /* received chars counter */
	29	unsigned char xbuff; / transmitter buffer */
	30	unsigned char xhead; / pointer to next byte to XMIT */
	31	int xleft; /* bytes left in XMIT queue */
1da177e4 LT	32	int buffsize; /* Max buffers sizes */
	33
	34	unsigned long flags; /* Flag values/ mode etc */
	35	#define SLF_INUSE 0 /* Channel in use */
	36	#define SLF_ESCAPE 1 /* ESC received */
	37	#define SLF_ERROR 2 /* Parity, etc. error */
	38	#define SLF_OUTWAIT 4 /* Waiting for output */
	39	};
	40
	41
	42
	43	#define X25_ASY_MAGIC 0x5303
	44
65c8f953	45	int x25_asy_init(struct net_device *dev);
1da177e4 LT	46
1da177e4 LT	47	#endif /* _LINUX_X25_ASY.H */