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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 | struct net_device_stats stats; | |
70 | ||
71 | /* devices which this FRAD is slaved to */ | |
72 | struct net_device *master[CONFIG_DLCI_MAX]; | |
73 | short dlci[CONFIG_DLCI_MAX]; | |
74 | ||
75 | struct frad_conf config; | |
76 | int configured; /* has this device been configured */ | |
77 | int initialized; /* mem_start, port, irq set ? */ | |
78 | ||
79 | /* callback functions */ | |
80 | int (*activate)(struct net_device *, struct net_device *); | |
81 | int (*deactivate)(struct net_device *, struct net_device *); | |
82 | int (*assoc)(struct net_device *, struct net_device *); | |
83 | int (*deassoc)(struct net_device *, struct net_device *); | |
84 | int (*dlci_conf)(struct net_device *, struct net_device *, int get); | |
85 | ||
86 | /* fields that are used by the Sangoma SDLA cards */ | |
87 | struct timer_list timer; | |
88 | int type; /* adapter type */ | |
89 | int state; /* state of the S502/8 control latch */ | |
90 | int buffer; /* current buffer for S508 firmware */ | |
91 | }; | |
92 | ||
93 | #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ | |
94 | ||
95 | extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); | |
96 | ||
97 | #endif |