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awivar.h revision 1.3
      1 /* $NetBSD: awivar.h,v 1.3 1999/11/06 16:43:54 sommerfeld Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Bill Sommerfeld
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 
     40 enum awi_state {
     41 	AWI_ST_OFF,		/* powered off */
     42 	AWI_ST_SELFTEST,		/* waiting for selftest to complete*/
     43 	AWI_ST_IFTEST,		/* waiting for interface to respond */
     44 	AWI_ST_MIB_GET,		/* fetching MIB variables */
     45 	AWI_ST_MIB_SET,		/* stuffing MIB variables */
     46 	AWI_ST_TXINIT,		/* initializing TX side */
     47 	AWI_ST_RXINIT,		/* initializing RX side */
     48 	AWI_ST_SCAN,		/* hunting for a BSS */
     49 	AWI_ST_SYNCED,		/* synced?  trying to auth.. */
     50 	/* there are probably some missing 802.11 states here.. */
     51 	AWI_ST_AUTHED,		/* authenticated */
     52 	AWI_ST_RUNNING,		/* ready to send user data.. */
     53 	AWI_ST_INSANE,		/* failed to respond.. */
     54 };
     55 
     56 #define AWI_FL_CMD_INPROG 		0x0001
     57 
     58 #define AWI_SSID_LEN 33
     59 
     60 struct awi_bss_binding
     61 {
     62 	u_int8_t	chanset; /* channel set to use */
     63 	u_int8_t	pattern; /* hop pattern to use */
     64 	u_int8_t	index;	/* index to use */
     65 	u_int8_t	rssi;	/* strenght of this beacon */
     66 	u_int16_t	dwell_time; /* dwell time */
     67 	u_int8_t	bss_timestamp[8]; /* timestamp of this bss */
     68 	u_int8_t	bss_id[6];
     69 	u_int32_t	rxtime;	/* unit's local time */
     70 	u_int8_t	sslen;
     71 	u_int8_t	ssid[AWI_SSID_LEN];
     72 };
     73 
     74 #define NBND 4
     75 #define NTXD 4
     76 
     77 struct awi_txbd
     78 {
     79 	u_int32_t	descr;	/* offset to descriptor */
     80 	u_int32_t	frame;	/* offset to frame */
     81 	u_int32_t	len;	/* frame length */
     82 };
     83 
     84 struct awi_softc
     85 {
     86 	struct device 		sc_dev;
     87 	struct am79c930_softc 	sc_chip;
     88 	struct ethercom		sc_ec;
     89 	int 			sc_enabled;
     90 	enum awi_state 	sc_state;
     91 	int			sc_flags;
     92 	void			*sc_ih; /* interrupt handler */
     93 	struct ifnet		*sc_ifp;	/* XXX */
     94 	int			(*sc_enable) __P((struct awi_softc *));
     95 	void			(*sc_disable) __P((struct awi_softc *));
     96 	void			(*sc_completion) __P((struct awi_softc *,
     97 	    u_int8_t));
     98 
     99 	struct ifqueue		sc_mgtq;
    100 
    101 	u_int32_t		sc_txbase;
    102 	u_int32_t		sc_txlen;
    103 	u_int32_t		sc_rxbase;
    104 	u_int32_t		sc_rxlen;
    105 
    106 	u_int32_t		sc_rx_data_desc;
    107 	u_int32_t		sc_rx_mgt_desc;
    108 
    109 	u_int16_t		sc_scan_duration;
    110 	u_int8_t		sc_scan_chanset;
    111 	u_int8_t		sc_scan_pattern;
    112 
    113 	int			sc_nbindings;
    114 
    115 	u_int8_t		sc_my_addr[6];
    116 
    117 	int			sc_new_bss;
    118 	struct awi_bss_binding	sc_active_bss;
    119 	/*
    120 	 * BSS's found during a scan.. XXX doesn't need to be in-line
    121 	 */
    122 	struct awi_bss_binding	sc_bindings[NBND];
    123 
    124 	int			sc_txpending;
    125 	int			sc_ntxd;
    126 	int			sc_txnext; /* next txd to be given to driver */
    127 	int			sc_txfirst; /* first unsent txd dev has */
    128 	struct awi_txbd	sc_txd[NTXD];
    129 	u_int8_t		sc_curmib;
    130 
    131 	int			sc_scan_timer;
    132 	int			sc_tx_timer;
    133 	int			sc_mgt_timer;
    134 	int			sc_cmd_timer;
    135 	int			sc_selftest_tries;
    136 };
    137 
    138 extern int awi_activate __P((struct device *, enum devact));
    139 extern int awi_attach __P((struct awi_softc *, u_int8_t *macaddr));
    140 
    141 #define awi_read_1(sc, off) ((sc)->sc_chip.sc_ops->read_1)(&sc->sc_chip, off)
    142 #define awi_read_2(sc, off) ((sc)->sc_chip.sc_ops->read_2)(&sc->sc_chip, off)
    143 #define awi_read_4(sc, off) ((sc)->sc_chip.sc_ops->read_4)(&sc->sc_chip, off)
    144 #define awi_read_bytes(sc, off, ptr, len) ((sc)->sc_chip.sc_ops->read_bytes)(&sc->sc_chip, off, ptr, len)
    145 
    146 #define awi_write_1(sc, off, val) \
    147 	((sc)->sc_chip.sc_ops->write_1)(&sc->sc_chip, off, val)
    148 #define awi_write_2(sc, off, val) \
    149 	((sc)->sc_chip.sc_ops->write_2)(&sc->sc_chip, off, val)
    150 #define awi_write_4(sc, off, val) \
    151 	((sc)->sc_chip.sc_ops->write_4)(&sc->sc_chip, off, val)
    152 #define awi_write_bytes(sc, off, ptr, len) \
    153 	((sc)->sc_chip.sc_ops->write_bytes)(&sc->sc_chip, off, ptr, len)
    154 
    155 #define awi_drvstate(sc, state) \
    156 	awi_write_1(sc, AWI_DRIVERSTATE, \
    157 	    ((state) | AWI_DRV_AUTORXLED|AWI_DRV_AUTOTXLED));
    158 
    159 /* Number of trips around the loop waiting for the device.. */
    160 
    161 #define AWI_LOCKOUT_SPIN	10000 /* 10ms */
    162 
    163 /* 24-byte mac header + 8 byte SNAP header + 1500-byte ether MTU */
    164 #define AWI_FRAME_SIZE		1532
    165 
    166 /* refresh associations every 300s */
    167 
    168 #define AWI_ASSOC_REFRESH	300
    169 
    170 extern int awi_intr __P((void *));
    171