1 /* 2 * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are 3 * created for each DLCI associated with a FRAD. The FRAD driver 4 * is not truly a network device, but the lower level device 5 * handler. This allows other FRAD manufacturers to use the DLCI 6 * code, including its RFC1490 encapsulation alongside the current 7 * implementation for the Sangoma cards. 8 * 9 * Version: @(#)if_ifrad.h 0.15 31 Mar 96 10 * 11 * Author: Mike McLagan <mike.mclagan@linux.org> 12 * 13 * Changes: 14 * 0.15 Mike McLagan changed structure defs (packed) 15 * re-arranged flags 16 * added DLCI_RET vars 17 * 18 * This program is free software; you can redistribute it and/or 19 * modify it under the terms of the GNU General Public License 20 * as published by the Free Software Foundation; either version 21 * 2 of the License, or (at your option) any later version. 22 */ 23 #ifndef _FRAD_H_ 24 #define _FRAD_H_ 25 26 #include <uapi/linux/if_frad.h> 27 28 29 #if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) 30 31 /* these are the fields of an RFC 1490 header */ 32 struct frhdr 33 { 34 unsigned char control; 35 36 /* for IP packets, this can be the NLPID */ 37 unsigned char pad; 38 39 unsigned char NLPID; 40 unsigned char OUI[3]; 41 __be16 PID; 42 43 #define IP_NLPID pad 44 } __packed; 45 46 /* see RFC 1490 for the definition of the following */ 47 #define FRAD_I_UI 0x03 48 49 #define FRAD_P_PADDING 0x00 50 #define FRAD_P_Q933 0x08 51 #define FRAD_P_SNAP 0x80 52 #define FRAD_P_CLNP 0x81 53 #define FRAD_P_IP 0xCC 54 55 struct dlci_local 56 { 57 struct net_device *master; 58 struct net_device *slave; 59 struct dlci_conf config; 60 int configured; 61 struct list_head list; 62 63 /* callback function */ 64 void (*receive)(struct sk_buff *skb, struct net_device *); 65 }; 66 67 struct frad_local 68 { 69 /* devices which this FRAD is slaved to */ 70 struct net_device *master[CONFIG_DLCI_MAX]; 71 short dlci[CONFIG_DLCI_MAX]; 72 73 struct frad_conf config; 74 int configured; /* has this device been configured */ 75 int initialized; /* mem_start, port, irq set ? */ 76 77 /* callback functions */ 78 int (*activate)(struct net_device *, struct net_device *); 79 int (*deactivate)(struct net_device *, struct net_device *); 80 int (*assoc)(struct net_device *, struct net_device *); 81 int (*deassoc)(struct net_device *, struct net_device *); 82 int (*dlci_conf)(struct net_device *, struct net_device *, int get); 83 84 /* fields that are used by the Sangoma SDLA cards */ 85 struct timer_list timer; 86 struct net_device *dev; 87 int type; /* adapter type */ 88 int state; /* state of the S502/8 control latch */ 89 int buffer; /* current buffer for S508 firmware */ 90 }; 91 92 #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ 93 94 extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); 95 96 #endif 97