if_frad.h
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上传日期:2013-02-24
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- /*
- * 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 *slave;
- struct dlci_conf config;
- int configured;
- /* 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 */
- };
- int register_frad(const char *name);
- int unregister_frad(const char *name);
- extern int (*dlci_ioctl_hook)(unsigned int, void *);
- #endif /* __KERNEL__ */
- #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
- #endif