summaryrefslogtreecommitdiff
path: root/drivers/net/hamradio/mkiss.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/hamradio/mkiss.h')
-rw-r--r--drivers/net/hamradio/mkiss.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/net/hamradio/mkiss.h b/drivers/net/hamradio/mkiss.h
new file mode 100644
index 000000000000..4ab700478598
--- /dev/null
+++ b/drivers/net/hamradio/mkiss.h
@@ -0,0 +1,62 @@
+/****************************************************************************
+ * Defines for the Multi-KISS driver.
+ ****************************************************************************/
+
+#define AX25_MAXDEV 16 /* MAX number of AX25 channels;
+ This can be overridden with
+ insmod -oax25_maxdev=nnn */
+#define AX_MTU 236
+
+/* SLIP/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' */
+
+struct ax_disp {
+ int magic;
+
+ /* Various fields. */
+ 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 */
+
+ /* SLIP interface statistics. */
+ unsigned long rx_packets; /* inbound frames counter */
+ unsigned long tx_packets; /* outbound frames counter */
+ unsigned long rx_bytes; /* inbound bytes counter */
+ unsigned long tx_bytes; /* outbound bytes counter */
+ unsigned long rx_errors; /* Parity, etc. errors */
+ unsigned long tx_errors; /* Planned stuff */
+ unsigned long rx_dropped; /* No memory for skb */
+ unsigned long tx_dropped; /* When MTU change */
+ unsigned long rx_over_errors; /* Frame bigger then SLIP buf. */
+
+ /* Detailed SLIP statistics. */
+ int mtu; /* Our mtu (to spot changes!) */
+ int buffsize; /* Max buffers sizes */
+
+
+ unsigned long flags; /* Flag values/ mode etc */
+ /* long req'd: used by set_bit --RR */
+#define AXF_INUSE 0 /* Channel in use */
+#define AXF_ESCAPE 1 /* ESC received */
+#define AXF_ERROR 2 /* Parity, etc. error */
+#define AXF_KEEPTEST 3 /* Keepalive test flag */
+#define AXF_OUTWAIT 4 /* is outpacket was flag */
+
+ int mode;
+ int crcmode; /* MW: for FlexNet, SMACK etc. */
+#define CRC_MODE_NONE 0
+#define CRC_MODE_FLEX 1
+#define CRC_MODE_SMACK 2
+ spinlock_t buflock; /* lock for rbuf and xbuf */
+};
+
+#define AX25_MAGIC 0x5316