3 * WLAN net device structure and functions
5 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
6 * --------------------------------------------------------------------
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/
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.
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.
31 * --------------------------------------------------------------------
33 * Inquiries regarding the linux-wlan Open Source project can be
36 * AbsoluteValue Systems Inc.
38 * http://www.linux-wlan.com
40 * --------------------------------------------------------------------
42 * Portions of the development of this software were funded by
43 * Intersil Corporation as part of PRISM(R) chipset product development.
45 * --------------------------------------------------------------------
47 * This file declares the structure type that represents each wlan
50 * --------------------------------------------------------------------
53 #ifndef _LINUX_P80211NETDEV_H
54 #define _LINUX_P80211NETDEV_H
56 #include <linux/interrupt.h>
57 #include <linux/wireless.h>
59 /*================================================================*/
62 #define WLAN_DEVICE_CLOSED 0
63 #define WLAN_DEVICE_OPEN 1
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
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
82 #define ETH_P_ECONET 0x0018 /* needed for 2.2.x kernels */
85 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
87 #ifndef ARPHRD_IEEE80211
88 #define ARPHRD_IEEE80211 801 /* kernel 2.4.6 */
91 #ifndef ARPHRD_IEEE80211_PRISM /* kernel 2.4.18 */
92 #define ARPHRD_IEEE80211_PRISM 802
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 */
107 /*================================================================*/
110 /*================================================================*/
113 /* Received frame statistics */
114 typedef struct p80211_frmrx_t
141 UINT32 data__cfack_cfpoll;
152 /* called by /proc/net/wireless */
153 struct iw_statistics* p80211wext_get_wireless_stats(netdevice_t *dev);
154 /* wireless extensions' ioctls */
155 int p80211wext_support_ioctl(netdevice_t *dev, struct ifreq *ifr, int cmd);
156 extern struct iw_handler_def p80211wext_handler_def;
157 int p80211wext_event_associated(struct wlandevice *wlandev, int assoc);
158 #endif /* wireless extensions */
161 #define NUM_WEPKEYS 4
162 #define MAX_KEYLEN 32
164 #define HOSTWEP_DEFAULTKEY_MASK (BIT1|BIT0)
165 #define HOSTWEP_DECRYPT BIT4
166 #define HOSTWEP_ENCRYPT BIT5
167 #define HOSTWEP_PRIVACYINVOKED BIT6
168 #define HOSTWEP_EXCLUDEUNENCRYPTED BIT7
170 extern int wlan_watchdog;
171 extern int wlan_wext_write;
173 /* WLAN device type */
174 typedef struct wlandevice
176 struct wlandevice *next; /* link for list of devices */
177 void *priv; /* private data for MSD */
179 /* Subsystem State */
180 char name[WLAN_DEVNAMELEN_MAX]; /* Dev name, from register_wlandev()*/
183 UINT32 state; /* Device I/F state (open/closed) */
184 UINT32 msdstate; /* state of underlying driver */
185 UINT32 hwremoved; /* Has the hw been yanked out? */
187 /* Hardware config */
191 UINT32 nsdcaps; /* NSD Capabilities flags */
196 /* device methods (init by MSD, used by p80211 */
197 int (*open)(struct wlandevice *wlandev);
198 int (*close)(struct wlandevice *wlandev);
199 void (*reset)(struct wlandevice *wlandev );
200 int (*txframe)(struct wlandevice *wlandev, struct sk_buff *skb, p80211_hdr_t *p80211_hdr, p80211_metawep_t *p80211_wep);
201 int (*mlmerequest)(struct wlandevice *wlandev, p80211msg_t *msg);
202 int (*set_multicast_list)(struct wlandevice *wlandev,
204 void (*tx_timeout)(struct wlandevice *wlandev);
206 #ifdef CONFIG_PROC_FS
207 int (*nsd_proc_read)(char *page, char **start, off_t offset, int count, int *eof, void *data);
211 UINT8 bssid[WLAN_BSSID_LEN];
215 int shortpreamble; /* C bool */
218 UINT8 wep_keys[NUM_WEPKEYS][MAX_KEYLEN];
219 UINT8 wep_keylens[NUM_WEPKEYS];
222 /* Request/Confirm i/f state (used by p80211) */
223 unsigned long request_pending; /* flag, access atomically */
226 /* queue for indications waiting for cmd completion */
227 /* Linux netdevice and support */
228 netdevice_t *netdev; /* ptr to linux netdevice */
229 struct net_device_stats linux_stats;
231 #ifdef CONFIG_PROC_FS
233 struct proc_dir_entry *procdir;
234 struct proc_dir_entry *procwlandev;
238 struct tasklet_struct rx_bh;
240 struct sk_buff_head nsd_rxq;
242 /* 802.11 device statistics */
243 struct p80211_frmrx_t rx;
245 /* compatibility to wireless extensions */
247 struct iw_statistics wstats;
249 /* jkriegl: iwspy fields */
251 char spy_address[IW_MAX_SPY][ETH_ALEN];
252 struct iw_quality spy_stat[IW_MAX_SPY];
259 int wep_change_key(wlandevice_t *wlandev, int keynum, UINT8* key, int keylen);
260 int wep_decrypt(wlandevice_t *wlandev, UINT8 *buf, UINT32 len, int key_override, UINT8 *iv, UINT8 *icv);
261 int wep_encrypt(wlandevice_t *wlandev, UINT8 *buf, UINT8 *dst, UINT32 len, int keynum, UINT8 *iv, UINT8 *icv);
263 /*================================================================*/
266 /*================================================================*/
267 /* Function Declarations */
269 void p80211netdev_startup(void);
270 void p80211netdev_shutdown(void);
271 int wlan_setup(wlandevice_t *wlandev);
272 int wlan_unsetup(wlandevice_t *wlandev);
273 int register_wlandev(wlandevice_t *wlandev);
274 int unregister_wlandev(wlandevice_t *wlandev);
275 void p80211netdev_rx(wlandevice_t *wlandev, struct sk_buff *skb);
276 void p80211netdev_hwremoved(wlandevice_t *wlandev);
277 void p80211_suspend(wlandevice_t *wlandev);
278 void p80211_resume(wlandevice_t *wlandev);
280 /*================================================================*/
281 /* Function Definitions */
284 p80211netdev_stop_queue(wlandevice_t *wlandev)
286 if ( !wlandev ) return;
287 if ( !wlandev->netdev ) return;
288 netif_stop_queue(wlandev->netdev);
292 p80211netdev_start_queue(wlandevice_t *wlandev)
294 if ( !wlandev ) return;
295 if ( !wlandev->netdev ) return;
296 netif_start_queue(wlandev->netdev);
300 p80211netdev_wake_queue(wlandevice_t *wlandev)
302 if ( !wlandev ) return;
303 if ( !wlandev->netdev ) return;
304 netif_wake_queue(wlandev->netdev);