(2006-08-06) rescue-bootcd

extra/linux-2.6.10/include/linux/if_frad.h

@@ -0,0 +1,200 @@
+/*
+ * DLCI/FRAD	Definitions for Frame Relay Access Devices.  DLCI devices are
+ *		created for each DLCI associated with a FRAD.  The FRAD driver
+ *		is not truly a network device, but the lower level device
+ *		handler.  This allows other FRAD manufacturers to use the DLCI
+ *		code, including its RFC1490 encapsulation alongside the current
+ *		implementation for the Sangoma cards.
+ *
+ * Version:	@(#)if_ifrad.h	0.15	31 Mar 96
+ *
+ * Author:	Mike McLagan <mike.mclagan@linux.org>
+ *
+ * Changes:
+ *		0.15	Mike McLagan	changed structure defs (packed)
+ *					re-arranged flags
+ *					added DLCI_RET vars
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _FRAD_H_
+#define _FRAD_H_
+
+#include <linux/config.h>
+#include <linux/if.h>
+
+#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE)
+
+/* Structures and constants associated with the DLCI device driver */
+
+struct dlci_add
+{
+   char  devname[IFNAMSIZ];
+   short dlci;
+};
+
+#define DLCI_GET_CONF	(SIOCDEVPRIVATE + 2)
+#define DLCI_SET_CONF	(SIOCDEVPRIVATE + 3)
+
+/* 
+ * These are related to the Sangoma SDLA and should remain in order. 
+ * Code within the SDLA module is based on the specifics of this 
+ * structure.  Change at your own peril.
+ */
+struct dlci_conf {
+   short flags;
+   short CIR_fwd;
+   short Bc_fwd;
+   short Be_fwd;
+   short CIR_bwd;
+   short Bc_bwd;
+   short Be_bwd; 
+
+/* these are part of the status read */
+   short Tc_fwd;
+   short Tc_bwd;
+   short Tf_max;
+   short Tb_max;
+
+/* add any new fields here above is a mirror of sdla_dlci_conf */
+};
+
+#define DLCI_GET_SLAVE	(SIOCDEVPRIVATE + 4)
+
+/* configuration flags for DLCI */
+#define DLCI_IGNORE_CIR_OUT	0x0001
+#define DLCI_ACCOUNT_CIR_IN	0x0002
+#define DLCI_BUFFER_IF		0x0008
+
+#define DLCI_VALID_FLAGS	0x000B
+
+/* FRAD driver uses these to indicate what it did with packet */
+#define DLCI_RET_OK		0x00
+#define DLCI_RET_ERR		0x01
+#define DLCI_RET_DROP		0x02
+
+/* defines for the actual Frame Relay hardware */
+#define FRAD_GET_CONF	(SIOCDEVPRIVATE)
+#define FRAD_SET_CONF	(SIOCDEVPRIVATE + 1)
+
+#define FRAD_LAST_IOCTL	FRAD_SET_CONF
+
+/*
+ * Based on the setup for the Sangoma SDLA.  If changes are 
+ * necessary to this structure, a routine will need to be 
+ * added to that module to copy fields.
+ */
+struct frad_conf 
+{
+   short station;
+   short flags;
+   short kbaud;
+   short clocking;
+   short mtu;
+   short T391;
+   short T392;
+   short N391;
+   short N392;
+   short N393;
+   short CIR_fwd;
+   short Bc_fwd;
+   short Be_fwd;
+   short CIR_bwd;
+   short Bc_bwd;
+   short Be_bwd;
+
+/* Add new fields here, above is a mirror of the sdla_conf */
+
+};
+
+#define FRAD_STATION_CPE	0x0000
+#define FRAD_STATION_NODE	0x0001
+
+#define FRAD_TX_IGNORE_CIR	0x0001
+#define FRAD_RX_ACCOUNT_CIR	0x0002
+#define FRAD_DROP_ABORTED	0x0004
+#define FRAD_BUFFERIF		0x0008
+#define FRAD_STATS		0x0010
+#define FRAD_MCI		0x0100
+#define FRAD_AUTODLCI		0x8000
+#define FRAD_VALID_FLAGS	0x811F
+
+#define FRAD_CLOCK_INT		0x0001
+#define FRAD_CLOCK_EXT		0x0000
+
+#ifdef __KERNEL__
+
+/* these are the fields of an RFC 1490 header */
+struct frhdr
+{
+   unsigned char  control	__attribute__((packed));
+
+   /* for IP packets, this can be the NLPID */
+   unsigned char  pad		__attribute__((packed)); 
+
+   unsigned char  NLPID		__attribute__((packed));
+   unsigned char  OUI[3]	__attribute__((packed));
+   unsigned short PID		__attribute__((packed));
+
+#define IP_NLPID pad 
+};
+
+/* see RFC 1490 for the definition of the following */
+#define FRAD_I_UI		0x03
+
+#define FRAD_P_PADDING		0x00
+#define FRAD_P_Q933		0x08
+#define FRAD_P_SNAP		0x80
+#define FRAD_P_CLNP		0x81
+#define FRAD_P_IP		0xCC
+
+struct dlci_local
+{
+   struct net_device_stats stats;
+   struct net_device      *master;
+   struct net_device      *slave;
+   struct dlci_conf       config;
+   int                    configured;
+   struct list_head	  list;
+
+   /* callback function */
+   void              (*receive)(struct sk_buff *skb, struct net_device *);
+};
+
+struct frad_local
+{
+   struct net_device_stats stats;
+
+   /* devices which this FRAD is slaved to */
+   struct net_device     *master[CONFIG_DLCI_MAX];
+   short             dlci[CONFIG_DLCI_MAX];
+
+   struct frad_conf  config;
+   int               configured;	/* has this device been configured */
+   int               initialized;	/* mem_start, port, irq set ? */
+
+   /* callback functions */
+   int               (*activate)(struct net_device *, struct net_device *);
+   int               (*deactivate)(struct net_device *, struct net_device *);
+   int               (*assoc)(struct net_device *, struct net_device *);
+   int               (*deassoc)(struct net_device *, struct net_device *);
+   int               (*dlci_conf)(struct net_device *, struct net_device *, int get);
+
+   /* fields that are used by the Sangoma SDLA cards */
+   struct timer_list timer;
+   int               type;		/* adapter type */
+   int               state;		/* state of the S502/8 control latch */
+   int               buffer;		/* current buffer for S508 firmware */
+};
+
+extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
+
+#endif /* __KERNEL__ */
+
+#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
+
+#endif