Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / wan / x25_asy.h

diff --git a/kernel/drivers/net/wan/x25_asy.h b/kernel/drivers/net/wan/x25_asy.h
new file mode 100644 (file)
index 0000000..f57ee67
--- /dev/null
+++ b/kernel/drivers/net/wan/x25_asy.h
@@ -0,0 +1,46 @@
+#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 */