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if_ath_arbus.c revision 1.1
      1 /* $NetBSD: if_ath_arbus.c,v 1.1 2006/03/21 08:15:19 gdamore Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2006 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *        This product includes software developed by the NetBSD
     18  *        Foundation, Inc. and its contributors.
     19  * 4. Neither the name of The NetBSD Foundation nor the names of its
     20  *    contributors may be used to endorse or promote products derived
     21  *    from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: if_ath_arbus.c,v 1.1 2006/03/21 08:15:19 gdamore Exp $");
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/mbuf.h>
     42 #include <sys/malloc.h>
     43 #include <sys/kernel.h>
     44 #include <sys/errno.h>
     45 #include <sys/device.h>
     46 
     47 #include <machine/bus.h>
     48 #include <machine/intr.h>
     49 
     50 #include <net/if.h>
     51 #include <net/if_media.h>
     52 #include <net/if_ether.h>
     53 #include <net/if_llc.h>
     54 #include <net/if_arp.h>
     55 
     56 #include <netinet/in.h>
     57 
     58 #include <net80211/ieee80211_netbsd.h>
     59 #include <net80211/ieee80211_var.h>
     60 
     61 #include <mips/atheros/include/ar531xreg.h>
     62 #include <mips/atheros/include/ar531xvar.h>
     63 #include <mips/atheros/include/arbusvar.h>
     64 
     65 #include <dev/ic/ath_netbsd.h>
     66 #include <dev/ic/athvar.h>
     67 #include <contrib/dev/ic/athhal.h>
     68 
     69 struct ath_arbus_softc {
     70 	struct ath_softc	sc_ath;
     71 	bus_space_tag_t		sc_iot;
     72 	bus_space_handle_t	sc_ioh;
     73 	void			*sc_ih;
     74 };
     75 
     76 static int	ath_arbus_match(struct device *, struct cfdata *, void *);
     77 static void	ath_arbus_attach(struct device *, struct device *, void *);
     78 static int	ath_arbus_detach(struct device *, int);
     79 static void	ath_arbus_shutdown(void *);
     80 
     81 CFATTACH_DECL(ath_arbus, sizeof(struct ath_arbus_softc),
     82     ath_arbus_match, ath_arbus_attach, ath_arbus_detach, NULL);
     83 
     84 static int
     85 ath_arbus_match(struct device *parent, struct cfdata *cf, void *opaque)
     86 {
     87 	struct arbus_attach_args *aa;
     88 
     89 	aa = (struct arbus_attach_args *)opaque;
     90 	if (strcmp(aa->aa_name, "ath") == 0)
     91 		return 1;
     92 
     93 	return 0;
     94 }
     95 
     96 static void
     97 ath_arbus_attach(struct device *parent, struct device *self, void *opaque)
     98 {
     99 	struct ath_arbus_softc *asc;
    100 	struct ath_softc *sc;
    101 	struct arbus_attach_args *aa;
    102 	struct ar531x_board_info *board;
    103 	void *hook;
    104 	int rv;
    105 
    106 	asc = (struct ath_arbus_softc *)self;
    107 	sc = &asc->sc_ath;
    108 	aa = (struct arbus_attach_args *)opaque;
    109 
    110 	printf(": Atheros AR531X WLAN\n");
    111 
    112 	if ((board = ar531x_board_info()) == NULL) {
    113 		aprint_error("%s: unable to get board identity\n",
    114 		    sc->sc_dev.dv_xname);
    115 		return;
    116 	}
    117 
    118 	asc->sc_iot = aa->aa_bst;
    119 	rv = bus_space_map(asc->sc_iot, aa->aa_addr, aa->aa_size, 0,
    120 	    &asc->sc_ioh);
    121 	if (rv) {
    122 		aprint_error("%s: unable to map registers\n",
    123 		    sc->sc_dev.dv_xname);
    124 		return;
    125 	}
    126 
    127 	sc->sc_st = asc->sc_iot;
    128 	sc->sc_sh = asc->sc_ioh;
    129 
    130 	sc->sc_invalid = 1;
    131 
    132 	asc->sc_ih = arbus_intr_establish(aa->aa_irq, ath_intr, sc);
    133 	if (asc->sc_ih == NULL) {
    134 		aprint_error("%s: couldn't establish interrupt\n",
    135 		    sc->sc_dev.dv_xname);
    136 		return;
    137 	}
    138 
    139 	hook = shutdownhook_establish(ath_arbus_shutdown, asc);
    140 	if (hook == NULL) {
    141 		aprint_error("%s: couldn't establish shutdown hook\n",
    142 		    sc->sc_dev.dv_xname);
    143 		goto err;
    144 	}
    145 
    146 	ath_attach(board->ab_pci_id, sc);
    147 
    148 	return;
    149 
    150 err:
    151 	arbus_intr_disestablish(asc->sc_ih);
    152 }
    153 
    154 static int
    155 ath_arbus_detach(struct device *self, int flags)
    156 {
    157 	struct ath_arbus_softc *asc = (struct ath_arbus_softc *)self;
    158 
    159 	ath_detach(&asc->sc_ath);
    160 	arbus_intr_disestablish(asc->sc_ih);
    161 
    162 	return (0);
    163 }
    164 
    165 static void
    166 ath_arbus_shutdown(void *opaque)
    167 {
    168 	struct ath_arbus_softc *asc = opaque;
    169 
    170 	ath_shutdown(&asc->sc_ath);
    171 
    172 	return;
    173 }
    174