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freebsd-skq/sys/dev/wi/if_wivar.h
Sam Leffler 68e8e04e93 Update 802.11 wireless support: 
o major overhaul of the way channels are handled: channels are now
  fully enumerated and uniquely identify the operating characteristics;
  these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
  background scanning and roaming
o move scanning support into loadable modules based on the operating
  mode to enable different policies and reduce the memory footprint
  on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
  mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
  we use a simple algorithm to trigger a roam: we threshold the rssi
  and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
  drivers but is incomplete; it's included now to establish a baseline
  for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
  prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
  encapsulation (note this can be used with any card that can tx+rx
  large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
  authentication and association failures
o enable the addition of sta mode power save support for drivers that need
  net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
  results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
  index into the rate set; this needs to be extended to deal with
  multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing

Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
       dynamic turbo (lightly tested), 11n (sniffing only and needs
       new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
       rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested

This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others.  Much of the scanning work was supported by
Atheros.  The 11n work was supported by Marvell.
2007-06-11 03:36:55 +00:00

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/*-
* Copyright (c) 2002
* M Warner Losh <imp@freebsd.org>. All rights reserved.
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#if 0
#define WICACHE /* turn on signal strength cache code */
#define MAXWICACHE 10
#endif
/*
* Encryption controls. We can enable or disable encryption as
* well as specify up to 4 encryption keys. We can also specify
* which of the four keys will be used for transmit encryption.
*/
#define WI_RID_ENCRYPTION 0xFC20
#define WI_RID_AUTHTYPE 0xFC21
#define WI_RID_DEFLT_CRYPT_KEYS 0xFCB0
#define WI_RID_TX_CRYPT_KEY 0xFCB1
#define WI_RID_WEP_AVAIL 0xFD4F
#define WI_RID_P2_TX_CRYPT_KEY 0xFC23
#define WI_RID_P2_CRYPT_KEY0 0xFC24
#define WI_RID_P2_CRYPT_KEY1 0xFC25
#define WI_RID_MICROWAVE_OVEN 0xFC25
#define WI_RID_P2_CRYPT_KEY2 0xFC26
#define WI_RID_P2_CRYPT_KEY3 0xFC27
#define WI_RID_P2_ENCRYPTION 0xFC28
#define WI_RID_ROAMING_MODE 0xFC2D
#define WI_RID_CUR_TX_RATE 0xFD44 /* current TX rate */
#define WI_MAX_AID 256 /* max stations for ap operation */
struct wi_softc {
struct ifnet *sc_ifp;
struct ieee80211com sc_ic;
int (*sc_newstate)(struct ieee80211com *,
enum ieee80211_state, int);
int (*sc_key_alloc)(struct ieee80211com *,
const struct ieee80211_key *,
ieee80211_keyix *, ieee80211_keyix *);
device_t sc_dev;
struct mtx sc_mtx;
struct callout sc_watchdog;
int sc_unit;
int wi_gone;
int sc_enabled;
int sc_reset;
int sc_firmware_type;
#define WI_NOTYPE 0
#define WI_LUCENT 1
#define WI_INTERSIL 2
#define WI_SYMBOL 3
int sc_pri_firmware_ver; /* Primary firmware */
int sc_sta_firmware_ver; /* Station firmware */
int wi_bus_type; /* Bus attachment type */
struct resource * local;
int local_rid;
struct resource * iobase;
int iobase_rid;
struct resource * irq;
int irq_rid;
struct resource * mem;
int mem_rid;
bus_space_handle_t wi_localhandle;
bus_space_tag_t wi_localtag;
bus_space_handle_t wi_bhandle;
bus_space_tag_t wi_btag;
bus_space_handle_t wi_bmemhandle;
bus_space_tag_t wi_bmemtag;
void * wi_intrhand;
struct ieee80211_channel *wi_channel;
int wi_io_addr;
int wi_cmd_count;
struct bpf_if *sc_drvbpf;
int sc_flags;
int sc_if_flags;
int sc_bap_id;
int sc_bap_off;
u_int16_t sc_procframe;
u_int16_t sc_portnum;
/* RSSI interpretation */
u_int16_t sc_min_rssi; /* clamp sc_min_rssi < RSSI */
u_int16_t sc_max_rssi; /* clamp RSSI < sc_max_rssi */
u_int16_t sc_dbm_offset; /* dBm ~ RSSI - sc_dbm_offset */
u_int16_t sc_max_datalen;
u_int16_t sc_system_scale;
u_int16_t sc_cnfauthmode;
u_int16_t sc_roaming_mode;
u_int16_t sc_microwave_oven;
u_int16_t sc_authtype;
u_int16_t sc_encryption;
int sc_nodelen;
char sc_nodename[IEEE80211_NWID_LEN];
char sc_net_name[IEEE80211_NWID_LEN];
uint8_t sc_hintmacaddr[IEEE80211_ADDR_LEN];
int sc_buflen; /* TX buffer size */
int sc_ntxbuf;
#define WI_NTXBUF 3
struct {
int d_fid;
int d_len;
} sc_txd[WI_NTXBUF]; /* TX buffers */
int sc_txnext; /* index of next TX */
int sc_txcur; /* index of current TX*/
int sc_tx_timer;
int sc_scan_timer;
struct wi_counters sc_stats;
u_int16_t sc_ibss_port;
#define WI_MAXAPINFO 30
struct wi_apinfo sc_aps[WI_MAXAPINFO];
int sc_naps;
struct {
u_int16_t wi_sleep;
u_int16_t wi_delaysupp;
u_int16_t wi_txsupp;
u_int16_t wi_monitor;
u_int16_t wi_ledtest;
u_int16_t wi_ledtest_param0;
u_int16_t wi_ledtest_param1;
u_int16_t wi_conttx;
u_int16_t wi_conttx_param0;
u_int16_t wi_contrx;
u_int16_t wi_sigstate;
u_int16_t wi_sigstate_param0;
u_int16_t wi_confbits;
u_int16_t wi_confbits_param0;
} wi_debug;
struct timeval sc_last_syn;
int sc_false_syns;
u_int16_t sc_txbuf[IEEE80211_MAX_LEN/2];
union {
struct wi_tx_radiotap_header th;
u_int8_t pad[64];
} u_tx_rt;
int sc_tx_th_len;
union {
struct wi_rx_radiotap_header th;
u_int8_t pad[64];
} u_rx_rt;
int sc_rx_th_len;
};
#define sc_tx_th u_tx_rt.th
#define sc_rx_th u_rx_rt.th
/* maximum consecutive false change-of-BSSID indications */
#define WI_MAX_FALSE_SYNS 10
#define WI_SCAN_INQWAIT 3 /* wait sec before inquire */
#define WI_SCAN_WAIT 5 /* maximum scan wait */
#define WI_FLAGS_ATTACHED 0x0001
#define WI_FLAGS_INITIALIZED 0x0002
#define WI_FLAGS_OUTRANGE 0x0004
#define WI_FLAGS_HAS_MOR 0x0010
#define WI_FLAGS_HAS_ROAMING 0x0020
#define WI_FLAGS_HAS_DIVERSITY 0x0040
#define WI_FLAGS_HAS_SYSSCALE 0x0080
#define WI_FLAGS_BUG_AUTOINC 0x0100
#define WI_FLAGS_HAS_FRAGTHR 0x0200
#define WI_FLAGS_HAS_DBMADJUST 0x0400
#define WI_FLAGS_SCANNING 0x0800
/* driver-specific node state */
struct wi_node {
struct ieee80211_node ni; /* base class */
};
struct wi_card_ident {
u_int16_t card_id;
char *card_name;
u_int8_t firm_type;
};
#define WI_PRISM_MIN_RSSI 0x1b
#define WI_PRISM_MAX_RSSI 0x9a
#define WI_PRISM_DBM_OFFSET 100 /* XXX */
#define WI_LUCENT_MIN_RSSI 47
#define WI_LUCENT_MAX_RSSI 138
#define WI_LUCENT_DBM_OFFSET 149
#define WI_RSSI_TO_DBM(sc, rssi) (MIN((sc)->sc_max_rssi, \
MAX((sc)->sc_min_rssi, (rssi))) - (sc)->sc_dbm_offset)
#define WI_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
#define WI_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
#define WI_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
int wi_attach(device_t);
int wi_detach(device_t);
void wi_shutdown(device_t);
int wi_alloc(device_t, int);
void wi_free(device_t);
extern devclass_t wi_devclass;
void wi_init(void *);
void wi_intr(void *);
int wi_mgmt_xmit(struct wi_softc *, caddr_t, int);
void wi_stop(struct ifnet *, int);
int wi_symbol_load_firm(struct wi_softc *, const void *, int, const void *, int);
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