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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/wan/x25_asy.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/net/wan/x25_asy.h')
-rw-r--r--drivers/net/wan/x25_asy.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/net/wan/x25_asy.h b/drivers/net/wan/x25_asy.h
new file mode 100644
index 000000000000..41770200ceb6
--- /dev/null
+++ b/drivers/net/wan/x25_asy.h
@@ -0,0 +1,50 @@
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
32 /* X.25 interface statistics. */
33 struct net_device_stats stats;
34
35 int buffsize; /* Max buffers sizes */
36
37 unsigned long flags; /* Flag values/ mode etc */
38#define SLF_INUSE 0 /* Channel in use */
39#define SLF_ESCAPE 1 /* ESC received */
40#define SLF_ERROR 2 /* Parity, etc. error */
41#define SLF_OUTWAIT 4 /* Waiting for output */
42};
43
44
45
46#define X25_ASY_MAGIC 0x5303
47
48extern int x25_asy_init(struct net_device *dev);
49
50#endif /* _LINUX_X25_ASY.H */