/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * 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 */ #ifndef _FRAD_H_ #define _FRAD_H_ #include <uapi/linux/if_frad.h> #if defined([31mCONFIG_DLCI[0m) || defined(CONFIG_DLCI_MODULE) /* these are the fields of an RFC 1490 header */ struct frhdr { unsigned char control; /* for IP packets, this can be the NLPID */ unsigned char pad; unsigned char NLPID; unsigned char OUI[3]; __be16 PID; #define IP_NLPID pad } __packed; /* 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 *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 { /* devices which this FRAD is slaved to */ struct net_device *master[[31mCONFIG_DLCI_MAX[0m]; short dlci[[31mCONFIG_DLCI_MAX[0m]; 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; struct net_device *dev; int type; /* adapter type */ int state; /* state of the S502/8 control latch */ int buffer; /* current buffer for S508 firmware */ }; #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); #endif |