Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 | |
| 27 | #include <linux/config.h> |
| 28 | #include <linux/if.h> |
| 29 | |
| 30 | #if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE) |
| 31 | |
| 32 | /* Structures and constants associated with the DLCI device driver */ |
| 33 | |
| 34 | struct dlci_add |
| 35 | { |
| 36 | char devname[IFNAMSIZ]; |
| 37 | short dlci; |
| 38 | }; |
| 39 | |
| 40 | #define DLCI_GET_CONF (SIOCDEVPRIVATE + 2) |
| 41 | #define DLCI_SET_CONF (SIOCDEVPRIVATE + 3) |
| 42 | |
| 43 | /* |
| 44 | * These are related to the Sangoma SDLA and should remain in order. |
| 45 | * Code within the SDLA module is based on the specifics of this |
| 46 | * structure. Change at your own peril. |
| 47 | */ |
| 48 | struct dlci_conf { |
| 49 | short flags; |
| 50 | short CIR_fwd; |
| 51 | short Bc_fwd; |
| 52 | short Be_fwd; |
| 53 | short CIR_bwd; |
| 54 | short Bc_bwd; |
| 55 | short Be_bwd; |
| 56 | |
| 57 | /* these are part of the status read */ |
| 58 | short Tc_fwd; |
| 59 | short Tc_bwd; |
| 60 | short Tf_max; |
| 61 | short Tb_max; |
| 62 | |
| 63 | /* add any new fields here above is a mirror of sdla_dlci_conf */ |
| 64 | }; |
| 65 | |
| 66 | #define DLCI_GET_SLAVE (SIOCDEVPRIVATE + 4) |
| 67 | |
| 68 | /* configuration flags for DLCI */ |
| 69 | #define DLCI_IGNORE_CIR_OUT 0x0001 |
| 70 | #define DLCI_ACCOUNT_CIR_IN 0x0002 |
| 71 | #define DLCI_BUFFER_IF 0x0008 |
| 72 | |
| 73 | #define DLCI_VALID_FLAGS 0x000B |
| 74 | |
| 75 | /* FRAD driver uses these to indicate what it did with packet */ |
| 76 | #define DLCI_RET_OK 0x00 |
| 77 | #define DLCI_RET_ERR 0x01 |
| 78 | #define DLCI_RET_DROP 0x02 |
| 79 | |
| 80 | /* defines for the actual Frame Relay hardware */ |
| 81 | #define FRAD_GET_CONF (SIOCDEVPRIVATE) |
| 82 | #define FRAD_SET_CONF (SIOCDEVPRIVATE + 1) |
| 83 | |
| 84 | #define FRAD_LAST_IOCTL FRAD_SET_CONF |
| 85 | |
| 86 | /* |
| 87 | * Based on the setup for the Sangoma SDLA. If changes are |
| 88 | * necessary to this structure, a routine will need to be |
| 89 | * added to that module to copy fields. |
| 90 | */ |
| 91 | struct frad_conf |
| 92 | { |
| 93 | short station; |
| 94 | short flags; |
| 95 | short kbaud; |
| 96 | short clocking; |
| 97 | short mtu; |
| 98 | short T391; |
| 99 | short T392; |
| 100 | short N391; |
| 101 | short N392; |
| 102 | short N393; |
| 103 | short CIR_fwd; |
| 104 | short Bc_fwd; |
| 105 | short Be_fwd; |
| 106 | short CIR_bwd; |
| 107 | short Bc_bwd; |
| 108 | short Be_bwd; |
| 109 | |
| 110 | /* Add new fields here, above is a mirror of the sdla_conf */ |
| 111 | |
| 112 | }; |
| 113 | |
| 114 | #define FRAD_STATION_CPE 0x0000 |
| 115 | #define FRAD_STATION_NODE 0x0001 |
| 116 | |
| 117 | #define FRAD_TX_IGNORE_CIR 0x0001 |
| 118 | #define FRAD_RX_ACCOUNT_CIR 0x0002 |
| 119 | #define FRAD_DROP_ABORTED 0x0004 |
| 120 | #define FRAD_BUFFERIF 0x0008 |
| 121 | #define FRAD_STATS 0x0010 |
| 122 | #define FRAD_MCI 0x0100 |
| 123 | #define FRAD_AUTODLCI 0x8000 |
| 124 | #define FRAD_VALID_FLAGS 0x811F |
| 125 | |
| 126 | #define FRAD_CLOCK_INT 0x0001 |
| 127 | #define FRAD_CLOCK_EXT 0x0000 |
| 128 | |
| 129 | #ifdef __KERNEL__ |
| 130 | |
| 131 | /* these are the fields of an RFC 1490 header */ |
| 132 | struct frhdr |
| 133 | { |
| 134 | unsigned char control __attribute__((packed)); |
| 135 | |
| 136 | /* for IP packets, this can be the NLPID */ |
| 137 | unsigned char pad __attribute__((packed)); |
| 138 | |
| 139 | unsigned char NLPID __attribute__((packed)); |
| 140 | unsigned char OUI[3] __attribute__((packed)); |
| 141 | unsigned short PID __attribute__((packed)); |
| 142 | |
| 143 | #define IP_NLPID pad |
| 144 | }; |
| 145 | |
| 146 | /* see RFC 1490 for the definition of the following */ |
| 147 | #define FRAD_I_UI 0x03 |
| 148 | |
| 149 | #define FRAD_P_PADDING 0x00 |
| 150 | #define FRAD_P_Q933 0x08 |
| 151 | #define FRAD_P_SNAP 0x80 |
| 152 | #define FRAD_P_CLNP 0x81 |
| 153 | #define FRAD_P_IP 0xCC |
| 154 | |
| 155 | struct dlci_local |
| 156 | { |
| 157 | struct net_device_stats stats; |
| 158 | struct net_device *master; |
| 159 | struct net_device *slave; |
| 160 | struct dlci_conf config; |
| 161 | int configured; |
| 162 | struct list_head list; |
| 163 | |
| 164 | /* callback function */ |
| 165 | void (*receive)(struct sk_buff *skb, struct net_device *); |
| 166 | }; |
| 167 | |
| 168 | struct frad_local |
| 169 | { |
| 170 | struct net_device_stats stats; |
| 171 | |
| 172 | /* devices which this FRAD is slaved to */ |
| 173 | struct net_device *master[CONFIG_DLCI_MAX]; |
| 174 | short dlci[CONFIG_DLCI_MAX]; |
| 175 | |
| 176 | struct frad_conf config; |
| 177 | int configured; /* has this device been configured */ |
| 178 | int initialized; /* mem_start, port, irq set ? */ |
| 179 | |
| 180 | /* callback functions */ |
| 181 | int (*activate)(struct net_device *, struct net_device *); |
| 182 | int (*deactivate)(struct net_device *, struct net_device *); |
| 183 | int (*assoc)(struct net_device *, struct net_device *); |
| 184 | int (*deassoc)(struct net_device *, struct net_device *); |
| 185 | int (*dlci_conf)(struct net_device *, struct net_device *, int get); |
| 186 | |
| 187 | /* fields that are used by the Sangoma SDLA cards */ |
| 188 | struct timer_list timer; |
| 189 | int type; /* adapter type */ |
| 190 | int state; /* state of the S502/8 control latch */ |
| 191 | int buffer; /* current buffer for S508 firmware */ |
| 192 | }; |
| 193 | |
| 194 | extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)); |
| 195 | |
| 196 | #endif /* __KERNEL__ */ |
| 197 | |
| 198 | #endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */ |
| 199 | |
| 200 | #endif |