kernel/2.6.29.6-aldebaran-rt/drivers/staging/wlan-ng/p80211netdev.h

   1 /* p80211netdev.h
   2 *
   3 * WLAN net device structure and functions
   4 *
   5 * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
   6 * --------------------------------------------------------------------
   7 *
   8 * linux-wlan
   9 *
  10 *   The contents of this file are subject to the Mozilla Public
  11 *   License Version 1.1 (the "License"); you may not use this file
  12 *   except in compliance with the License. You may obtain a copy of
  13 *   the License at http://www.mozilla.org/MPL/
  14 *
  15 *   Software distributed under the License is distributed on an "AS
  16 *   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  17 *   implied. See the License for the specific language governing
  18 *   rights and limitations under the License.
  19 *
  20 *   Alternatively, the contents of this file may be used under the
  21 *   terms of the GNU Public License version 2 (the "GPL"), in which
  22 *   case the provisions of the GPL are applicable instead of the
  23 *   above.  If you wish to allow the use of your version of this file
  24 *   only under the terms of the GPL and not to allow others to use
  25 *   your version of this file under the MPL, indicate your decision
  26 *   by deleting the provisions above and replace them with the notice
  27 *   and other provisions required by the GPL.  If you do not delete
  28 *   the provisions above, a recipient may use your version of this
  29 *   file under either the MPL or the GPL.
  30 *
  31 * --------------------------------------------------------------------
  32 *
  33 * Inquiries regarding the linux-wlan Open Source project can be
  34 * made directly to:
  35 *
  36 * AbsoluteValue Systems Inc.
  37 * info@linux-wlan.com
  38 * http://www.linux-wlan.com
  39 *
  40 * --------------------------------------------------------------------
  41 *
  42 * Portions of the development of this software were funded by
  43 * Intersil Corporation as part of PRISM(R) chipset product development.
  44 *
  45 * --------------------------------------------------------------------
  46 *
  47 * This file declares the structure type that represents each wlan
  48 * interface.
  49 *
  50 * --------------------------------------------------------------------
  51 */
  52
  53 #ifndef _LINUX_P80211NETDEV_H
  54 #define _LINUX_P80211NETDEV_H
  55
  56 #include <linux/interrupt.h>
  57 #include <linux/wireless.h>
  58
  59 /*================================================================*/
  60 /* Constants */
  61
  62 #define WLAN_DEVICE_CLOSED      0
  63 #define WLAN_DEVICE_OPEN        1
  64
  65 #define WLAN_MACMODE_NONE       0
  66 #define WLAN_MACMODE_IBSS_STA   1
  67 #define WLAN_MACMODE_ESS_STA    2
  68 #define WLAN_MACMODE_ESS_AP     3
  69
  70 /* MSD States */
  71 #define WLAN_MSD_START                  -1
  72 #define WLAN_MSD_DRIVERLOADED           0
  73 #define WLAN_MSD_HWPRESENT_PENDING      1
  74 #define WLAN_MSD_HWFAIL                 2
  75 #define WLAN_MSD_HWPRESENT              3
  76 #define WLAN_MSD_FWLOAD_PENDING         4
  77 #define WLAN_MSD_FWLOAD                 5
  78 #define WLAN_MSD_RUNNING_PENDING        6
  79 #define WLAN_MSD_RUNNING                7
  80
  81 #ifndef ETH_P_ECONET
  82 #define ETH_P_ECONET   0x0018    /* needed for 2.2.x kernels */
  83 #endif
  84
  85 #define ETH_P_80211_RAW        (ETH_P_ECONET + 1)
  86
  87 #ifndef ARPHRD_IEEE80211
  88 #define ARPHRD_IEEE80211 801     /* kernel 2.4.6 */
  89 #endif
  90
  91 #ifndef ARPHRD_IEEE80211_PRISM  /* kernel 2.4.18 */
  92 #define ARPHRD_IEEE80211_PRISM 802
  93 #endif
  94
  95 /*--- NSD Capabilities Flags ------------------------------*/
  96 #define P80211_NSDCAP_HARDWAREWEP           0x01  /* hardware wep engine */
  97 #define P80211_NSDCAP_TIEDWEP               0x02  /* can't decouple en/de */
  98 #define P80211_NSDCAP_NOHOSTWEP             0x04  /* must use hardware wep */
  99 #define P80211_NSDCAP_PBCC                  0x08  /* hardware supports PBCC */
 100 #define P80211_NSDCAP_SHORT_PREAMBLE        0x10  /* hardware supports */
 101 #define P80211_NSDCAP_AGILITY               0x20  /* hardware supports */
 102 #define P80211_NSDCAP_AP_RETRANSMIT         0x40  /* nsd handles retransmits */
 103 #define P80211_NSDCAP_HWFRAGMENT            0x80  /* nsd handles frag/defrag */
 104 #define P80211_NSDCAP_AUTOJOIN              0x100  /* nsd does autojoin */
 105 #define P80211_NSDCAP_NOSCAN                0x200  /* nsd can scan */
 106
 107 /*================================================================*/
 108 /* Macros */
 109
 110 /*================================================================*/
 111 /* Types */
 112
 113 /* Received frame statistics */
 114 typedef struct p80211_frmrx_t
 115 {
 116         u32     mgmt;
 117         u32     assocreq;
 118         u32     assocresp;
 119         u32     reassocreq;
 120         u32     reassocresp;
 121         u32     probereq;
 122         u32     proberesp;
 123         u32     beacon;
 124         u32     atim;
 125         u32     disassoc;
 126         u32     authen;
 127         u32     deauthen;
 128         u32     mgmt_unknown;
 129         u32     ctl;
 130         u32     pspoll;
 131         u32     rts;
 132         u32     cts;
 133         u32     ack;
 134         u32     cfend;
 135         u32     cfendcfack;
 136         u32     ctl_unknown;
 137         u32     data;
 138         u32     dataonly;
 139         u32     data_cfack;
 140         u32     data_cfpoll;
 141         u32     data__cfack_cfpoll;
 142         u32     null;
 143         u32     cfack;
 144         u32     cfpoll;
 145         u32     cfack_cfpoll;
 146         u32     data_unknown;
 147         u32  decrypt;
 148         u32  decrypt_err;
 149 } p80211_frmrx_t;
 150
 151 /* called by /proc/net/wireless */
 152 struct iw_statistics* p80211wext_get_wireless_stats(netdevice_t *dev);
 153 /* wireless extensions' ioctls */
 154 int p80211wext_support_ioctl(netdevice_t *dev, struct ifreq *ifr, int cmd);
 155 extern struct iw_handler_def p80211wext_handler_def;
 156 int p80211wext_event_associated(struct wlandevice *wlandev, int assoc);
 157
 158 /* WEP stuff */
 159 #define NUM_WEPKEYS 4
 160 #define MAX_KEYLEN 32
 161
 162 #define HOSTWEP_DEFAULTKEY_MASK (BIT1|BIT0)
 163 #define HOSTWEP_DECRYPT  BIT4
 164 #define HOSTWEP_ENCRYPT  BIT5
 165 #define HOSTWEP_PRIVACYINVOKED BIT6
 166 #define HOSTWEP_EXCLUDEUNENCRYPTED BIT7
 167
 168 extern int wlan_watchdog;
 169 extern int wlan_wext_write;
 170
 171 /* WLAN device type */
 172 typedef struct wlandevice
 173 {
 174         struct wlandevice       *next;          /* link for list of devices */
 175         void                    *priv;          /* private data for MSD */
 176
 177         /* Subsystem State */
 178         char            name[WLAN_DEVNAMELEN_MAX]; /* Dev name, from register_wlandev()*/
 179         char            *nsdname;
 180
 181         u32          state;          /* Device I/F state (open/closed) */
 182         u32             msdstate;       /* state of underlying driver */
 183         u32             hwremoved;      /* Has the hw been yanked out? */
 184
 185         /* Hardware config */
 186         unsigned int            irq;
 187         unsigned int            iobase;
 188         unsigned int            membase;
 189         u32          nsdcaps;  /* NSD Capabilities flags */
 190
 191         /* Config vars */
 192         unsigned int            ethconv;
 193
 194         /* device methods (init by MSD, used by p80211 */
 195         int             (*open)(struct wlandevice *wlandev);
 196         int             (*close)(struct wlandevice *wlandev);
 197         void            (*reset)(struct wlandevice *wlandev );
 198         int             (*txframe)(struct wlandevice *wlandev, struct sk_buff *skb, p80211_hdr_t *p80211_hdr, p80211_metawep_t *p80211_wep);
 199         int             (*mlmerequest)(struct wlandevice *wlandev, p80211msg_t *msg);
 200         int             (*set_multicast_list)(struct wlandevice *wlandev,
 201                                               netdevice_t *dev);
 202         void            (*tx_timeout)(struct wlandevice *wlandev);
 203
 204         /* 802.11 State */
 205         u8              bssid[WLAN_BSSID_LEN];
 206         p80211pstr32_t  ssid;
 207         u32             macmode;
 208         int             linkstatus;
 209
 210         /* WEP State */
 211         u8 wep_keys[NUM_WEPKEYS][MAX_KEYLEN];
 212         u8 wep_keylens[NUM_WEPKEYS];
 213         int   hostwep;
 214
 215         /* Request/Confirm i/f state (used by p80211) */
 216         unsigned long           request_pending; /* flag, access atomically */
 217
 218         /* netlink socket */
 219         /* queue for indications waiting for cmd completion */
 220         /* Linux netdevice and support */
 221         netdevice_t             *netdev;        /* ptr to linux netdevice */
 222         struct net_device_stats linux_stats;
 223
 224         /* Rx bottom half */
 225         struct tasklet_struct   rx_bh;
 226
 227         struct sk_buff_head     nsd_rxq;
 228
 229         /* 802.11 device statistics */
 230         struct p80211_frmrx_t   rx;
 231
 232         struct iw_statistics    wstats;
 233
 234         /* jkriegl: iwspy fields */
 235         u8                      spy_number;
 236         char                    spy_address[IW_MAX_SPY][ETH_ALEN];
 237         struct iw_quality       spy_stat[IW_MAX_SPY];
 238 } wlandevice_t;
 239
 240 /* WEP stuff */
 241 int wep_change_key(wlandevice_t *wlandev, int keynum, u8* key, int keylen);
 242 int wep_decrypt(wlandevice_t *wlandev, u8 *buf, u32 len, int key_override, u8 *iv, u8 *icv);
 243 int wep_encrypt(wlandevice_t *wlandev, u8 *buf, u8 *dst, u32 len, int keynum, u8 *iv, u8 *icv);
 244
 245 void    p80211netdev_startup(void);
 246 void    p80211netdev_shutdown(void);
 247 int     wlan_setup(wlandevice_t *wlandev);
 248 int     wlan_unsetup(wlandevice_t *wlandev);
 249 int     register_wlandev(wlandevice_t *wlandev);
 250 int     unregister_wlandev(wlandevice_t *wlandev);
 251 void    p80211netdev_rx(wlandevice_t *wlandev, struct sk_buff *skb);
 252 void    p80211netdev_hwremoved(wlandevice_t *wlandev);
 253
 254 #endif