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

 1/* SPDX-License-Identifier: GPL-2.0 */
 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
18struct 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     */
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
45int x25_asy_init(struct net_device *dev);
46
47#endif	/* _LINUX_X25_ASY.H */