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1da177e4 LT |
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 | ||
24 | #ifndef _FRAD_H_ | |
25 | #define _FRAD_H_ | |
26 | ||
1da177e4 LT |
27 | #include <linux/if.h> |
28 | ||
29 | #if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) | |
30 | ||
31 | /* Structures and constants associated with the DLCI device driver */ | |
32 | ||
33 | struct dlci_add | |
34 | { | |
35 | char devname[IFNAMSIZ]; | |
36 | short dlci; | |
37 | }; | |
38 | ||
39 | #define DLCI_GET_CONF (SIOCDEVPRIVATE + 2) | |
40 | #define DLCI_SET_CONF (SIOCDEVPRIVATE + 3) | |
41 | ||
42 | /* | |
43 | * These are related to the Sangoma SDLA and should remain in order. | |
44 | * Code within the SDLA module is based on the specifics of this | |
45 | * structure. Change at your own peril. | |
46 | */ | |
47 | struct dlci_conf { | |
48 | short flags; | |
49 | short CIR_fwd; | |
50 | short Bc_fwd; | |
51 | short Be_fwd; | |
52 | short CIR_bwd; | |
53 | short Bc_bwd; | |
54 | short Be_bwd; | |
55 | ||
56 | /* these are part of the status read */ | |
57 | short Tc_fwd; | |
58 | short Tc_bwd; | |
59 | short Tf_max; | |
60 | short Tb_max; | |
61 | ||
62 | /* add any new fields here above is a mirror of sdla_dlci_conf */ | |
63 | }; | |
64 | ||
65 | #define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4) | |
66 | ||
67 | /* configuration flags for DLCI */ | |
68 | #define DLCI_IGNORE_CIR_OUT 0x0001 | |
69 | #define DLCI_ACCOUNT_CIR_IN 0x0002 | |
70 | #define DLCI_BUFFER_IF 0x0008 | |
71 | ||
72 | #define DLCI_VALID_FLAGS 0x000B | |
73 | ||
74 | /* FRAD driver uses these to indicate what it did with packet */ | |
75 | #define DLCI_RET_OK 0x00 | |
76 | #define DLCI_RET_ERR 0x01 | |
77 | #define DLCI_RET_DROP 0x02 | |
78 | ||
79 | /* defines for the actual Frame Relay hardware */ | |
80 | #define FRAD_GET_CONF (SIOCDEVPRIVATE) | |
81 | #define FRAD_SET_CONF (SIOCDEVPRIVATE + 1) | |
82 | ||
83 | #define FRAD_LAST_IOCTL FRAD_SET_CONF | |
84 | ||
85 | /* | |
86 | * Based on the setup for the Sangoma SDLA. If changes are | |
87 | * necessary to this structure, a routine will need to be | |
88 | * added to that module to copy fields. | |
89 | */ | |
90 | struct frad_conf | |
91 | { | |
92 | short station; | |
93 | short flags; | |
94 | short kbaud; | |
95 | short clocking; | |
96 | short mtu; | |
97 | short T391; | |
98 | short T392; | |
99 | short N391; | |
100 | short N392; | |
101 | short N393; | |
102 | short CIR_fwd; | |
103 | short Bc_fwd; | |
104 | short Be_fwd; | |
105 | short CIR_bwd; | |
106 | short Bc_bwd; | |
107 | short Be_bwd; | |
108 | ||
109 | /* Add new fields here, above is a mirror of the sdla_conf */ | |
110 | ||
111 | }; | |
112 | ||
113 | #define FRAD_STATION_CPE 0x0000 | |
114 | #define FRAD_STATION_NODE 0x0001 | |
115 | ||
116 | #define FRAD_TX_IGNORE_CIR 0x0001 | |
117 | #define FRAD_RX_ACCOUNT_CIR 0x0002 | |
118 | #define FRAD_DROP_ABORTED 0x0004 | |
119 | #define FRAD_BUFFERIF 0x0008 | |
120 | #define FRAD_STATS 0x0010 | |
121 | #define FRAD_MCI 0x0100 | |
122 | #define FRAD_AUTODLCI 0x8000 | |
123 | #define FRAD_VALID_FLAGS 0x811F | |
124 | ||
125 | #define FRAD_CLOCK_INT 0x0001 | |
126 | #define FRAD_CLOCK_EXT 0x0000 | |
127 | ||
128 | #ifdef __KERNEL__ | |
129 | ||
130 | /* these are the fields of an RFC 1490 header */ | |
131 | struct frhdr | |
132 | { | |
6a878184 | 133 | unsigned char control; |
1da177e4 LT |
134 | |
135 | /* for IP packets, this can be the NLPID */ | |
6a878184 | 136 | unsigned char pad; |
1da177e4 | 137 | |
6a878184 JB |
138 | unsigned char NLPID; |
139 | unsigned char OUI[3]; | |
90458401 | 140 | __be16 PID; |
1da177e4 LT |
141 | |
142 | #define IP_NLPID pad | |
6a878184 | 143 | } __attribute__((packed)); |
1da177e4 LT |
144 | |
145 | /* see RFC 1490 for the definition of the following */ | |
146 | #define FRAD_I_UI 0x03 | |
147 | ||
148 | #define FRAD_P_PADDING 0x00 | |
149 | #define FRAD_P_Q933 0x08 | |
150 | #define FRAD_P_SNAP 0x80 | |
151 | #define FRAD_P_CLNP 0x81 | |
152 | #define FRAD_P_IP 0xCC | |
153 | ||
154 | struct dlci_local | |
155 | { | |
156 | struct net_device_stats stats; | |
157 | struct net_device *master; | |
158 | struct net_device *slave; | |
159 | struct dlci_conf config; | |
160 | int configured; | |
161 | struct list_head list; | |
162 | ||
163 | /* callback function */ | |
164 | void (*receive)(struct sk_buff *skb, struct net_device *); | |
165 | }; | |
166 | ||
167 | struct frad_local | |
168 | { | |
169 | struct net_device_stats stats; | |
170 | ||
171 | /* devices which this FRAD is slaved to */ | |
172 | struct net_device *master[CONFIG_DLCI_MAX]; | |
173 | short dlci[CONFIG_DLCI_MAX]; | |
174 | ||
175 | struct frad_conf config; | |
176 | int configured; /* has this device been configured */ | |
177 | int initialized; /* mem_start, port, irq set ? */ | |
178 | ||
179 | /* callback functions */ | |
180 | int (*activate)(struct net_device *, struct net_device *); | |
181 | int (*deactivate)(struct net_device *, struct net_device *); | |
182 | int (*assoc)(struct net_device *, struct net_device *); | |
183 | int (*deassoc)(struct net_device *, struct net_device *); | |
184 | int (*dlci_conf)(struct net_device *, struct net_device *, int get); | |
185 | ||
186 | /* fields that are used by the Sangoma SDLA cards */ | |
187 | struct timer_list timer; | |
188 | int type; /* adapter type */ | |
189 | int state; /* state of the S502/8 control latch */ | |
190 | int buffer; /* current buffer for S508 firmware */ | |
191 | }; | |
192 | ||
1da177e4 LT |
193 | #endif /* __KERNEL__ */ |
194 | ||
195 | #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ | |
196 | ||
20380731 ACM |
197 | #ifdef __KERNEL__ |
198 | extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); | |
199 | #endif | |
200 | ||
1da177e4 | 201 | #endif |