forked from mirrors/linux
2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are
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* created for each DLCI associated with a FRAD. The FRAD driver
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* is not truly a network device, but the lower level device
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* handler. This allows other FRAD manufacturers to use the DLCI
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* code, including its RFC1490 encapsulation alongside the current
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* implementation for the Sangoma cards.
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*
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* Version: @(#)if_ifrad.h 0.15 31 Mar 96
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*
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* Author: Mike McLagan <mike.mclagan@linux.org>
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*
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* Changes:
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* 0.15 Mike McLagan changed structure defs (packed)
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* re-arranged flags
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* added DLCI_RET vars
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*/
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#ifndef _FRAD_H_
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#define _FRAD_H_
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#include <uapi/linux/if_frad.h>
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#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE)
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/* these are the fields of an RFC 1490 header */
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struct frhdr
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{
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unsigned char control;
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/* for IP packets, this can be the NLPID */
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unsigned char pad;
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unsigned char NLPID;
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unsigned char OUI[3];
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__be16 PID;
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#define IP_NLPID pad
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} __packed;
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/* see RFC 1490 for the definition of the following */
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#define FRAD_I_UI 0x03
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#define FRAD_P_PADDING 0x00
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#define FRAD_P_Q933 0x08
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#define FRAD_P_SNAP 0x80
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#define FRAD_P_CLNP 0x81
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#define FRAD_P_IP 0xCC
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struct dlci_local
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{
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struct net_device *master;
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struct net_device *slave;
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struct dlci_conf config;
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int configured;
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struct list_head list;
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/* callback function */
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void (*receive)(struct sk_buff *skb, struct net_device *);
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};
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struct frad_local
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{
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/* devices which this FRAD is slaved to */
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struct net_device *master[CONFIG_DLCI_MAX];
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short dlci[CONFIG_DLCI_MAX];
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struct frad_conf config;
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int configured; /* has this device been configured */
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int initialized; /* mem_start, port, irq set ? */
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/* callback functions */
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int (*activate)(struct net_device *, struct net_device *);
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int (*deactivate)(struct net_device *, struct net_device *);
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int (*assoc)(struct net_device *, struct net_device *);
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int (*deassoc)(struct net_device *, struct net_device *);
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int (*dlci_conf)(struct net_device *, struct net_device *, int get);
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/* fields that are used by the Sangoma SDLA cards */
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struct timer_list timer;
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struct net_device *dev;
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int type; /* adapter type */
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int state; /* state of the S502/8 control latch */
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int buffer; /* current buffer for S508 firmware */
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};
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#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
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extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
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#endif
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