/*      $NetBSD: anvar.h,v 1.22 2019/10/05 23:27:20 mrg Exp $   */
/*
* Copyright (c) 1997, 1998, 1999
*      Bill Paul <[email protected]>.  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: src/sys/dev/an/if_aironet_ieee.h,v 1.2 2000/11/13 23:04:12 wpaul Exp $
*/

#ifndef _DEV_IC_ANVAR_H
#define _DEV_IC_ANVAR_H

#include <net80211/ieee80211_radiotap.h>

#define AN_TIMEOUT      65536
#define AN_MAGIC        0x414e

/* The interrupts we will handle */
#define AN_INTRS        (AN_EV_RX | AN_EV_TX | AN_EV_TX_EXC | AN_EV_LINKSTAT)

/*
* register space access macros
*/
#define CSR_WRITE_2(sc, reg, val)       \
       bus_space_write_2(sc->sc_iot, sc->sc_ioh, reg, val)

#define CSR_READ_2(sc, reg)             \
       bus_space_read_2(sc->sc_iot, sc->sc_ioh, reg)

#ifndef __BUS_SPACE_HAS_STREAM_METHODS
#define bus_space_write_multi_stream_2  bus_space_write_multi_2
#define bus_space_read_multi_stream_2   bus_space_read_multi_2
#endif

#define CSR_WRITE_MULTI_STREAM_2(sc, reg, val, count)   \
       bus_space_write_multi_stream_2(sc->sc_iot, sc->sc_ioh, reg, val, count)
#define CSR_READ_MULTI_STREAM_2(sc, reg, buf, count)    \
       bus_space_read_multi_stream_2(sc->sc_iot, sc->sc_ioh, reg, buf, count)

#define AN_TX_MAX_LEN           \
               (sizeof(struct an_txframe) + ETHER_TYPE_LEN + ETHER_MAX_LEN)
#define AN_TX_RING_CNT          4
#define AN_INC(x, y)            (x) = (x + 1) % y

struct an_wepkey {
       int                     an_wep_key[16];
       int                     an_wep_keylen;
};

/* Radio capture format for Aironet */
#define AN_RX_RADIOTAP_PRESENT  ((1 << IEEE80211_RADIOTAP_FLAGS) | \
                                (1 << IEEE80211_RADIOTAP_RATE) | \
                                (1 << IEEE80211_RADIOTAP_CHANNEL) | \
                                (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))

struct an_rx_radiotap_header {
       struct ieee80211_radiotap_header        ar_ihdr;
       u_int8_t                                ar_flags;
       u_int8_t                                ar_rate;
       u_int16_t                               ar_chan_freq;
       u_int16_t                               ar_chan_flags;
       int8_t                                  ar_antsignal;
};

#define AN_TX_RADIOTAP_PRESENT  ((1 << IEEE80211_RADIOTAP_FLAGS) | \
                                (1 << IEEE80211_RADIOTAP_RATE) | \
                                (1 << IEEE80211_RADIOTAP_CHANNEL))

struct an_tx_radiotap_header {
       struct ieee80211_radiotap_header        at_ihdr;
       u_int8_t                                at_flags;
       u_int8_t                                at_rate;
       u_int16_t                               at_chan_freq;
       u_int16_t                               at_chan_flags;
};

#define AN_GAPLEN_MAX   8

struct an_softc {
       device_t                sc_dev;
       struct ethercom         sc_ec;
       struct ieee80211com     sc_ic;
       bus_space_tag_t         sc_iot;
       bus_space_handle_t      sc_ioh;
       void                    *sc_soft_ih;
       int                     (*sc_enable)(struct an_softc *);
       void                    (*sc_disable)(struct an_softc *);
       int                     (*sc_newstate)(struct ieee80211com *,
                                   enum ieee80211_state, int);

       int                     sc_enabled;
       int                     sc_attached;

       int                     sc_bap_id;
       int                     sc_bap_off;

       int                     sc_use_leap;
       struct an_wepkey        sc_wepkeys[IEEE80211_WEP_NKID];
       int                     sc_perskeylen[IEEE80211_WEP_NKID];
       int                     sc_tx_key;
       int                     sc_tx_perskey;
       int                     sc_tx_timer;
       struct an_txdesc {
               int             d_fid;
               int             d_inuse;
       }                       sc_txd[AN_TX_RING_CNT];
       int                     sc_txnext;
       int                     sc_txcur;

       struct an_rid_genconfig sc_config;
       struct an_rid_caps      sc_caps;
       union {
               u_int16_t               sc_val[1];
               u_int8_t                sc_txbuf[AN_TX_MAX_LEN];
               struct an_rid_ssidlist  sc_ssidlist;
               struct an_rid_aplist    sc_aplist;
               struct an_rid_status    sc_status;
               struct an_rid_wepkey    sc_wepkey;
               struct an_rid_leapkey   sc_leapkey;
               struct an_rid_encap     sc_encap;
       }                       sc_buf;

       /* radiotap header */
       struct bpf_if *                 sc_drvbpf;
       union {
               struct an_rx_radiotap_header    tap;
               u_int8_t                        pad[64];
       } sc_rxtapu;
       union {
               struct an_tx_radiotap_header    tap;
               u_int8_t                        pad[64];
       } sc_txtapu;
};

#define sc_if   sc_ec.ec_if
#define sc_rxtap        sc_rxtapu.tap
#define sc_txtap        sc_txtapu.tap

int     an_attach(struct an_softc *);
int     an_detach(struct an_softc *);
int     an_activate(device_t, enum devact);
int     an_intr(void *);

#endif  /* _DEV_IC_ANVAR_H */

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