patch-2.1.94 linux/drivers/net/hamradio/6pack.h

• Lines: 136
• Date: Wed Apr 8 17:31:27 1998
• Orig file: v2.1.93/linux/drivers/net/hamradio/6pack.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.93/linux/drivers/net/hamradio/6pack.h linux/drivers/net/hamradio/6pack.h
@@ -0,0 +1,135 @@
+/*
+ * 6pack.h	Define the 6pack device driver interface and constants.
+ *
+ * NOTE:	THIS FILE WILL BE MOVED TO THE LINUX INCLUDE DIRECTORY
+ *		AS SOON AS POSSIBLE!
+ *
+ * Version:	@(#)6pack.h	0.3.0	04/07/98
+ *
+ * Fixes:
+ *
+ * Author:	Andreas Könsgen <ajk@iehk.rwth-aachen.de>
+ *
+ *		This file is derived from slip.h, written by
+ *		Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
+ */
+
+#ifndef _LINUX_6PACK_H
+#define _LINUX_6PACK_H
+
+#define SIXPACK_VERSION    "Revision: 0.3.0"
+
+#ifdef __KERNEL__
+
+/* sixpack priority commands */
+#define SIXP_SEOF	0x40	/* start and end of a 6pack frame */
+#define SIXP_TX_URUN	0x48	/* transmit overrun */
+#define SIXP_RX_ORUN	0x50	/* receive overrun */
+#define SIXP_RX_BUF_OVL	0x58	/* receive buffer overflow */
+
+#define SIXP_CHKSUM	0xFF	/* valid checksum of a 6pack frame */
+
+/* masks to get certain bits out of the status bytes sent by the TNC */
+
+#define SIXP_CMD_MASK		0xC0
+#define SIXP_CHN_MASK		0x07
+#define SIXP_PRIO_CMD_MASK	0x80
+#define SIXP_STD_CMD_MASK	0x40
+#define SIXP_PRIO_DATA_MASK	0x38
+#define SIXP_TX_MASK		0x20
+#define SIXP_RX_MASK		0x10
+#define SIXP_RX_DCD_MASK	0x18
+#define SIXP_LEDS_ON		0x78
+#define SIXP_LEDS_OFF		0x60
+#define SIXP_CON		0x08
+#define SIXP_STA		0x10
+
+#define SIXP_FOUND_TNC		0xe9
+#define SIXP_CON_ON		0x68
+#define SIXP_DCD_MASK		0x08
+#define SIXP_DAMA_OFF		0
+
+/* default level 2 parameters */
+#define SIXP_TXDELAY			25	/* in 10 ms */
+#define SIXP_PERSIST			50	/* in 256ths */
+#define SIXP_SLOTTIME			10	/* in 10 ms */
+#define SIXP_INIT_RESYNC_TIMEOUT	150	/* in 10 ms */
+#define SIXP_RESYNC_TIMEOUT		500	/* in 10 ms */
+
+/* 6pack configuration. */
+#define SIXP_NRUNIT			256	/* MAX number of 6pack channels */
+#define SIXP_MTU			256	/* Default MTU */
+
+enum sixpack_flags {
+	SIXPF_INUSE,	/* Channel in use	*/
+	SIXPF_ERROR,	/* Parity, etc. error	*/
+};
+
+struct sixpack {
+  int			magic;
+
+  /* Various fields. */
+  struct tty_struct	*tty;		/* ptr to TTY structure		*/
+  struct 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     */
+
+  unsigned char		raw_buf[4];
+  unsigned char		cooked_buf[400];
+
+  unsigned int		rx_count;
+  unsigned int		rx_count_cooked;
+
+  /* 6pack 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;       /* outboud 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 6pack buf. */
+
+  /* Detailed 6pack statistics. */
+
+  int			mtu;		/* Our mtu (to spot changes!)   */
+  int                   buffsize;       /* Max buffers sizes            */
+
+  unsigned char		flags;		/* Flag values/ mode etc	*/
+  unsigned char		mode;		/* 6pack mode			*/
+
+/* 6pack stuff */
+  
+  unsigned char tx_delay;
+  unsigned char persistance;
+  unsigned char slottime;
+  unsigned char duplex;
+  unsigned char led_state;
+  unsigned char status;
+  unsigned char status1;
+  unsigned char status2;
+  unsigned char tx_enable;
+  unsigned char tnc_ok;
+  
+/*  unsigned char retval; */
+
+  struct timer_list tx_t;
+  struct timer_list resync_t;
+}; /* struct sixpack */
+
+
+/* should later be moved to include/net/ax25.h */
+#define AX25_6PACK_HEADER_LEN 0
+#define SIXPACK_MAGIC 0x5304
+
+extern int sixpack_init(struct device *dev);
+
+#endif
+
+#endif	/* _LINUX_6PACK.H */