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freebsd-skq/sys/dev/wi/if_wireg.h
Bosko Milekic 9ed346bab0 Change and clean the mutex lock interface. 
mtx_enter(lock, type) becomes:

mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks)
mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized)

similarily, for releasing a lock, we now have:

mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN.
We change the caller interface for the two different types of locks
because the semantics are entirely different for each case, and this
makes it explicitly clear and, at the same time, it rids us of the
extra `type' argument.

The enter->lock and exit->unlock change has been made with the idea
that we're "locking data" and not "entering locked code" in mind.

Further, remove all additional "flags" previously passed to the
lock acquire/release routines with the exception of two:

MTX_QUIET and MTX_NOSWITCH

The functionality of these flags is preserved and they can be passed
to the lock/unlock routines by calling the corresponding wrappers:

mtx_{lock, unlock}_flags(lock, flag(s)) and
mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN
locks, respectively.

Re-inline some lock acq/rel code; in the sleep lock case, we only
inline the _obtain_lock()s in order to ensure that the inlined code
fits into a cache line. In the spin lock case, we inline recursion and
actually only perform a function call if we need to spin. This change
has been made with the idea that we generally tend to avoid spin locks
and that also the spin locks that we do have and are heavily used
(i.e. sched_lock) do recurse, and therefore in an effort to reduce
function call overhead for some architectures (such as alpha), we
inline recursion for this case.

Create a new malloc type for the witness code and retire from using
the M_DEV type. The new type is called M_WITNESS and is only declared
if WITNESS is enabled.

Begin cleaning up some machdep/mutex.h code - specifically updated the
"optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN
and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently
need those.

Finally, caught up to the interface changes in all sys code.

Contributors: jake, jhb, jasone (in no particular order)
2001-02-09 06:11:45 +00:00

649 lines
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/*
* 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.
*
* $FreeBSD$
*/
struct wi_counters {
u_int32_t wi_tx_unicast_frames;
u_int32_t wi_tx_multicast_frames;
u_int32_t wi_tx_fragments;
u_int32_t wi_tx_unicast_octets;
u_int32_t wi_tx_multicast_octets;
u_int32_t wi_tx_deferred_xmits;
u_int32_t wi_tx_single_retries;
u_int32_t wi_tx_multi_retries;
u_int32_t wi_tx_retry_limit;
u_int32_t wi_tx_discards;
u_int32_t wi_rx_unicast_frames;
u_int32_t wi_rx_multicast_frames;
u_int32_t wi_rx_fragments;
u_int32_t wi_rx_unicast_octets;
u_int32_t wi_rx_multicast_octets;
u_int32_t wi_rx_fcs_errors;
u_int32_t wi_rx_discards_nobuf;
u_int32_t wi_tx_discards_wrong_sa;
u_int32_t wi_rx_WEP_cant_decrypt;
u_int32_t wi_rx_msg_in_msg_frags;
u_int32_t wi_rx_msg_in_bad_msg_frags;
};
/*
* 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_P2_CRYPT_KEY2 0xFC26
#define WI_RID_P2_CRYPT_KEY3 0xFC27
#define WI_RID_P2_ENCRYPTION 0xFC28
#define WI_RID_CUR_TX_RATE 0xFD44 /* current TX rate */
struct wi_key {
u_int16_t wi_keylen;
u_int8_t wi_keydat[14];
};
struct wi_ltv_keys {
u_int16_t wi_len;
u_int16_t wi_type;
struct wi_key wi_keys[4];
};
struct wi_softc {
struct arpcom arpcom;
struct ifmedia ifmedia;
device_t dev;
int wi_unit;
struct resource * iobase;
struct resource * irq;
bus_space_handle_t wi_bhandle;
bus_space_tag_t wi_btag;
void * wi_intrhand;
int wi_io_addr;
int wi_tx_data_id;
int wi_tx_mgmt_id;
int wi_gone;
int wi_if_flags;
u_int16_t wi_ptype;
u_int16_t wi_portnum;
u_int16_t wi_max_data_len;
u_int16_t wi_rts_thresh;
u_int16_t wi_ap_density;
u_int16_t wi_tx_rate;
u_int16_t wi_create_ibss;
u_int16_t wi_channel;
u_int16_t wi_pm_enabled;
u_int16_t wi_max_sleep;
char wi_node_name[32];
char wi_net_name[32];
char wi_ibss_name[32];
u_int8_t wi_txbuf[1596];
struct wi_counters wi_stats;
int wi_has_wep;
int wi_use_wep;
int wi_tx_key;
struct wi_ltv_keys wi_keys;
#ifdef WICACHE
int wi_sigitems;
struct wi_sigcache wi_sigcache[MAXWICACHE];
int wi_nextitem;
#endif
struct callout_handle wi_stat_ch;
struct mtx wi_mtx;
int wi_prism2; /* set to 1 if it uses a Prism II chip */
};
#define WI_LOCK(_sc) mtx_lock(&(_sc)->wi_mtx)
#define WI_UNLOCK(_sc) mtx_unlock(&(_sc)->wi_mtx)
#define WI_TIMEOUT 65536
#define WI_PORT0 0
#define WI_PORT1 1
#define WI_PORT2 2
#define WI_PORT3 3
#define WI_PORT4 4
#define WI_PORT5 5
/* Default port: 0 (only 0 exists on stations) */
#define WI_DEFAULT_PORT (WI_PORT0 << 8)
/* Default TX rate: 2Mbps, auto fallback */
#define WI_DEFAULT_TX_RATE 3
/* Default network name: empty string implies any */
#define WI_DEFAULT_NETNAME ""
#define WI_DEFAULT_AP_DENSITY 1
#define WI_DEFAULT_RTS_THRESH 2347
#define WI_DEFAULT_DATALEN 2304
#define WI_DEFAULT_CREATE_IBSS 0
#define WI_DEFAULT_PM_ENABLED 0
#define WI_DEFAULT_MAX_SLEEP 100
#define WI_DEFAULT_NODENAME "FreeBSD WaveLAN/IEEE node"
#define WI_DEFAULT_IBSS "FreeBSD IBSS"
#define WI_DEFAULT_CHAN 3
/*
* register space access macros
*/
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->wi_btag, sc->wi_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->wi_btag, sc->wi_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->wi_btag, sc->wi_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->wi_btag, sc->wi_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->wi_btag, sc->wi_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->wi_btag, sc->wi_bhandle, reg)
/*
* The WaveLAN/IEEE cards contain an 802.11 MAC controller which Lucent
* calls 'Hermes.' In typical fashion, getting documentation about this
* controller is about as easy as squeezing blood from a stone. Here
* is more or less what I know:
*
* - The Hermes controller is firmware driven, and the host interacts
* with the Hermes via a firmware interface, which can change.
*
* - The Hermes is described in a document called: "Hermes Firmware
* WaveLAN/IEEE Station Functions," document #010245, which of course
* Lucent will not release without an NDA.
*
* - Lucent has created a library called HCF (Hardware Control Functions)
* though which it wants developers to interact with the card. The HCF
* is needlessly complex, ill conceived and badly documented. Actually,
* the comments in the HCP code itself aren't bad, but the publically
* available manual that comes with it is awful, probably due largely to
* the fact that it has been emasculated in order to hide information
* that Lucent wants to keep proprietary. The purpose of the HCF seems
* to be to insulate the driver programmer from the Hermes itself so that
* Lucent has an excuse not to release programming in for it.
*
* - Lucent only makes available documentation and code for 'HCF Light'
* which is a stripped down version of HCF with certain features not
* implemented, most notably support for 802.11 frames.
*
* - The HCF code which I have seen blows goats. Whoever decided to
* use a 132 column format should be shot.
*
* Rather than actually use the Lucent HCF library, I have stripped all
* the useful information from it and used it to create a driver in the
* usual BSD form. Note: I don't want to hear anybody whining about the
* fact that the Lucent code is GPLed and mine isn't. I did not actually
* put any of Lucent's code in this driver: I only used it as a reference
* to obtain information about the underlying hardware. The Hermes
* programming interface is not GPLed, so bite me.
*/
/*
* Size of Hermes I/O space.
*/
#define WI_IOSIZ 0x40
/*
* Hermes register definitions and what little I know about them.
*/
/* Hermes command/status registers. */
#define WI_COMMAND 0x00
#define WI_PARAM0 0x02
#define WI_PARAM1 0x04
#define WI_PARAM2 0x06
#define WI_STATUS 0x08
#define WI_RESP0 0x0A
#define WI_RESP1 0x0C
#define WI_RESP2 0x0E
/* Command register values. */
#define WI_CMD_BUSY 0x8000 /* busy bit */
#define WI_CMD_INI 0x0000 /* initialize */
#define WI_CMD_ENABLE 0x0001 /* enable */
#define WI_CMD_DISABLE 0x0002 /* disable */
#define WI_CMD_DIAG 0x0003
#define WI_CMD_ALLOC_MEM 0x000A /* allocate NIC memory */
#define WI_CMD_TX 0x000B /* transmit */
#define WI_CMD_NOTIFY 0x0010
#define WI_CMD_INQUIRE 0x0011
#define WI_CMD_ACCESS 0x0021
#define WI_CMD_PROGRAM 0x0022
#define WI_CMD_CODE_MASK 0x003F
/*
* Reclaim qualifier bit, applicable to the
* TX and INQUIRE commands.
*/
#define WI_RECLAIM 0x0100 /* reclaim NIC memory */
/*
* ACCESS command qualifier bits.
*/
#define WI_ACCESS_READ 0x0000
#define WI_ACCESS_WRITE 0x0100
/*
* PROGRAM command qualifier bits.
*/
#define WI_PROGRAM_DISABLE 0x0000
#define WI_PROGRAM_ENABLE_RAM 0x0100
#define WI_PROGRAM_ENABLE_NVRAM 0x0200
#define WI_PROGRAM_NVRAM 0x0300
/* Status register values */
#define WI_STAT_CMD_CODE 0x003F
#define WI_STAT_DIAG_ERR 0x0100
#define WI_STAT_INQ_ERR 0x0500
#define WI_STAT_CMD_RESULT 0x7F00
/* memory handle management registers */
#define WI_INFO_FID 0x10
#define WI_RX_FID 0x20
#define WI_ALLOC_FID 0x22
#define WI_TX_CMP_FID 0x24
/*
* Buffer Access Path (BAP) registers.
* These are I/O channels. I believe you can use each one for
* any desired purpose independently of the other. In general
* though, we use BAP1 for reading and writing LTV records and
* reading received data frames, and BAP0 for writing transmit
* frames. This is a convention though, not a rule.
*/
#define WI_SEL0 0x18
#define WI_SEL1 0x1A
#define WI_OFF0 0x1C
#define WI_OFF1 0x1E
#define WI_DATA0 0x36
#define WI_DATA1 0x38
#define WI_BAP0 WI_DATA0
#define WI_BAP1 WI_DATA1
#define WI_OFF_BUSY 0x8000
#define WI_OFF_ERR 0x4000
#define WI_OFF_DATAOFF 0x0FFF
/* Event registers */
#define WI_EVENT_STAT 0x30 /* Event status */
#define WI_INT_EN 0x32 /* Interrupt enable/disable */
#define WI_EVENT_ACK 0x34 /* Ack event */
/* Events */
#define WI_EV_TICK 0x8000 /* aux timer tick */
#define WI_EV_RES 0x4000 /* controller h/w error (time out) */
#define WI_EV_INFO_DROP 0x2000 /* no RAM to build unsolicited frame */
#define WI_EV_NO_CARD 0x0800 /* card removed (hunh?) */
#define WI_EV_DUIF_RX 0x0400 /* wavelan management packet received */
#define WI_EV_INFO 0x0080 /* async info frame */
#define WI_EV_CMD 0x0010 /* command completed */
#define WI_EV_ALLOC 0x0008 /* async alloc/reclaim completed */
#define WI_EV_TX_EXC 0x0004 /* async xmit completed with failure */
#define WI_EV_TX 0x0002 /* async xmit completed succesfully */
#define WI_EV_RX 0x0001 /* async rx completed */
#define WI_INTRS \
(WI_EV_RX|WI_EV_TX|WI_EV_TX_EXC|WI_EV_ALLOC|WI_EV_INFO|WI_EV_INFO_DROP)
/* Host software registers */
#define WI_SW0 0x28
#define WI_SW1 0x2A
#define WI_SW2 0x2C
#define WI_SW3 0x2E
#define WI_CNTL 0x14
#define WI_CNTL_AUX_ENA 0xC000
#define WI_CNTL_AUX_ENA_STAT 0xC000
#define WI_CNTL_AUX_DIS_STAT 0x0000
#define WI_CNTL_AUX_ENA_CNTL 0x8000
#define WI_CNTL_AUX_DIS_CNTL 0x4000
#define WI_AUX_PAGE 0x3A
#define WI_AUX_OFFSET 0x3C
#define WI_AUX_DATA 0x3E
/*
* One form of communication with the Hermes is with what Lucent calls
* LTV records, where LTV stands for Length, Type and Value. The length
* and type are 16 bits and are in native byte order. The value is in
* multiples of 16 bits and is in little endian byte order.
*/
struct wi_ltv_gen {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_val;
};
struct wi_ltv_str {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_str[17];
};
#define WI_SETVAL(recno, val) \
do { \
struct wi_ltv_gen g; \
\
g.wi_len = 2; \
g.wi_type = recno; \
g.wi_val = val; \
wi_write_record(sc, &g); \
} while (0)
#define WI_SETSTR(recno, str) \
do { \
struct wi_ltv_str s; \
int l; \
\
l = (strlen(str) + 1) & ~0x1; \
bzero((char *)&s, sizeof(s)); \
s.wi_len = (l / 2) + 2; \
s.wi_type = recno; \
s.wi_str[0] = strlen(str); \
bcopy(str, (char *)&s.wi_str[1], strlen(str)); \
wi_write_record(sc, (struct wi_ltv_gen *)&s); \
} while (0)
/*
* Download buffer location and length (0xFD01).
*/
#define WI_RID_DNLD_BUF 0xFD01
struct wi_ltv_dnld_buf {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_buf_pg; /* page addr of intermediate dl buf*/
u_int16_t wi_buf_off; /* offset of idb */
u_int16_t wi_buf_len; /* len of idb */
};
/*
* Mem sizes (0xFD02).
*/
#define WI_RID_MEMSZ 0xFD02
struct wi_ltv_memsz {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_mem_ram;
u_int16_t wi_mem_nvram;
};
/*
* List of intended regulatory domains (0xFD11).
*/
#define WI_RID_DOMAINS 0xFD11
struct wi_ltv_domains {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_domains[6];
};
/*
* CIS struct (0xFD13).
*/
#define WI_RID_CIS 0xFD13
struct wi_ltv_cis {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_cis[240];
};
/*
* Communications quality (0xFD43).
*/
#define WI_RID_COMMQUAL 0xFD43
struct wi_ltv_commqual {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_coms_qual;
u_int16_t wi_sig_lvl;
u_int16_t wi_noise_lvl;
};
/*
* Actual system scale thresholds (0xFD46).
*/
#define WI_RID_SYSTEM_SCALE 0xFC06
#define WI_RID_SCALETHRESH 0xFD46
struct wi_ltv_scalethresh {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_energy_detect;
u_int16_t wi_carrier_detect;
u_int16_t wi_defer;
u_int16_t wi_cell_search;
u_int16_t wi_out_of_range;
u_int16_t wi_delta_snr;
};
/*
* PCF info struct (0xFD87).
*/
#define WI_RID_PCF 0xFD87
struct wi_ltv_pcf {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_energy_detect;
u_int16_t wi_carrier_detect;
u_int16_t wi_defer;
u_int16_t wi_cell_search;
u_int16_t wi_range;
};
/*
* Connection control characteristics.
* 1 == Basic Service Set (BSS)
* 2 == Wireless Distribudion System (WDS)
* 3 == Pseudo IBSS
*/
#define WI_RID_PORTTYPE 0xFC00
#define WI_PORTTYPE_BSS 0x1
#define WI_PORTTYPE_WDS 0x2
#define WI_PORTTYPE_ADHOC 0x3
/*
* Mac addresses.
*/
#define WI_RID_MAC_NODE 0xFC01
#define WI_RID_MAC_WDS 0xFC08
struct wi_ltv_macaddr {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_mac_addr[3];
};
/*
* Station set identification (SSID).
*/
#define WI_RID_DESIRED_SSID 0xFC02
#define WI_RID_OWN_SSID 0xFC04
struct wi_ltv_ssid {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_id[17];
};
/*
* Set communications channel (radio frequency).
*/
#define WI_RID_OWN_CHNL 0xFC03
/*
* Frame data size.
*/
#define WI_RID_MAX_DATALEN 0xFC07
/*
* ESS power management enable
*/
#define WI_RID_PM_ENABLED 0xFC09
/*
* ESS max PM sleep internal
*/
#define WI_RID_MAX_SLEEP 0xFC0C
/*
* Set our station name.
*/
#define WI_RID_NODENAME 0xFC0E
struct wi_ltv_nodename {
u_int16_t wi_len;
u_int16_t wi_type;
u_int16_t wi_nodename[17];
};
/*
* Multicast addresses to be put in filter. We're
* allowed up to 16 addresses in the filter.
*/
#define WI_RID_MCAST 0xFC80
struct wi_ltv_mcast {
u_int16_t wi_len;
u_int16_t wi_type;
struct ether_addr wi_mcast[16];
};
/*
* Create IBSS.
*/
#define WI_RID_CREATE_IBSS 0xFC81
#define WI_RID_FRAG_THRESH 0xFC82
#define WI_RID_RTS_THRESH 0xFC83
/*
* TX rate control
* 0 == Fixed 1mbps
* 1 == Fixed 2mbps
* 2 == auto fallback
*/
#define WI_RID_TX_RATE 0xFC84
/*
* promiscuous mode.
*/
#define WI_RID_PROMISC 0xFC85
/*
* Auxiliary Timer tick interval
*/
#define WI_RID_TICK_TIME 0xFCE0
/*
* Information frame types.
*/
#define WI_INFO_NOTIFY 0xF000 /* Handover address */
#define WI_INFO_COUNTERS 0xF100 /* Statistics counters */
#define WI_INFO_SCAN_RESULTS 0xF101 /* Scan results */
#define WI_INFO_LINK_STAT 0xF200 /* Link status */
#define WI_INFO_ASSOC_STAT 0xF201 /* Association status */
/*
* Hermes transmit/receive frame structure
*/
struct wi_frame {
u_int16_t wi_status; /* 0x00 */
u_int16_t wi_rsvd0; /* 0x02 */
u_int16_t wi_rsvd1; /* 0x04 */
u_int16_t wi_q_info; /* 0x06 */
u_int16_t wi_rsvd2; /* 0x08 */
u_int16_t wi_rsvd3; /* 0x0A */
u_int16_t wi_tx_ctl; /* 0x0C */
u_int16_t wi_frame_ctl; /* 0x0E */
u_int16_t wi_id; /* 0x10 */
u_int8_t wi_addr1[6]; /* 0x12 */
u_int8_t wi_addr2[6]; /* 0x18 */
u_int8_t wi_addr3[6]; /* 0x1E */
u_int16_t wi_seq_ctl; /* 0x24 */
u_int8_t wi_addr4[6]; /* 0x26 */
u_int16_t wi_dat_len; /* 0x2C */
u_int8_t wi_dst_addr[6]; /* 0x2E */
u_int8_t wi_src_addr[6]; /* 0x34 */
u_int16_t wi_len; /* 0x3A */
u_int16_t wi_dat[3]; /* 0x3C */ /* SNAP header */
u_int16_t wi_type; /* 0x42 */
};
#define WI_802_3_OFFSET 0x2E
#define WI_802_11_OFFSET 0x44
#define WI_802_11_OFFSET_RAW 0x3C
#define WI_STAT_BADCRC 0x0001
#define WI_STAT_UNDECRYPTABLE 0x0002
#define WI_STAT_ERRSTAT 0x0003
#define WI_STAT_MAC_PORT 0x0700
#define WI_STAT_1042 0x2000 /* RFC1042 encoded */
#define WI_STAT_TUNNEL 0x4000 /* Bridge-tunnel encoded */
#define WI_STAT_WMP_MSG 0x6000 /* WaveLAN-II management protocol */
#define WI_RXSTAT_MSG_TYPE 0xE000
#define WI_ENC_TX_802_3 0x00
#define WI_ENC_TX_802_11 0x11
#define WI_ENC_TX_E_II 0x0E
#define WI_ENC_TX_1042 0x00
#define WI_ENC_TX_TUNNEL 0xF8
#define WI_TXCNTL_MACPORT 0x00FF
#define WI_TXCNTL_STRUCTTYPE 0xFF00
/*
* SNAP (sub-network access protocol) constants for transmission
* of IP datagrams over IEEE 802 networks, taken from RFC1042.
* We need these for the LLC/SNAP header fields in the TX/RX frame
* structure.
*/
#define WI_SNAP_K1 0xaa /* assigned global SAP for SNAP */
#define WI_SNAP_K2 0x00
#define WI_SNAP_CONTROL 0x03 /* unnumbered information format */
#define WI_SNAP_WORD0 (WI_SNAP_K1 | (WI_SNAP_K1 << 8))
#define WI_SNAP_WORD1 (WI_SNAP_K2 | (WI_SNAP_CONTROL << 8))
#define WI_SNAPHDR_LEN 0x6
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