sys/dev/isapnp/if_an_isapnp.c

   1 /*      $NetBSD: if_an_isapnp.c,v 1.21 2008/07/04 04:53:41 cegger Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * ISAPnP bus front-end for the Aironet ISA4500/ISA4800 Wireless LAN Adapter.
  34  * Unlike WaveLAN, this adapter is attached as an ISA device using an address
  35  * decoder hack.
  36  */
  37
  38 #include <sys/cdefs.h>
  39 __KERNEL_RCSID(0, "$NetBSD: if_an_isapnp.c,v 1.21 2008/07/04 04:53:41 cegger Exp $");
  40
  41 #include <sys/param.h>
  42 #include <sys/systm.h>
  43 #include <sys/mbuf.h>
  44 #include <sys/malloc.h>
  45 #include <sys/kernel.h>
  46 #include <sys/socket.h>
  47 #include <sys/ioctl.h>
  48 #include <sys/errno.h>
  49 #include <sys/device.h>
  50 #include <sys/callout.h>
  51
  52 #include <net/if.h>
  53 #include <net/if_dl.h>
  54 #include <net/if_media.h>
  55 #include <net/if_ether.h>
  56
  57 #include <net80211/ieee80211_netbsd.h>
  58 #include <net80211/ieee80211_var.h>
  59
  60 #include <sys/bus.h>
  61 #include <sys/intr.h>
  62
  63 #include <dev/ic/anreg.h>
  64 #include <dev/ic/anvar.h>
  65
  66 #include <dev/isa/isavar.h>
  67
  68 #include <dev/isapnp/isapnpreg.h>
  69 #include <dev/isapnp/isapnpvar.h>
  70 #include <dev/isapnp/isapnpdevs.h>
  71
  72 int     an_isapnp_match(device_t, cfdata_t, void *);
  73 void    an_isapnp_attach(device_t, device_t, void *);
  74
  75 struct an_isapnp_softc {
  76         struct an_softc sc_an;                  /* real "an" softc */
  77
  78         /* ISA-specific goo. */
  79         void    *sc_ih;                         /* interrupt cookie */
  80 };
  81
  82 CFATTACH_DECL_NEW(an_isapnp, sizeof(struct an_isapnp_softc),
  83     an_isapnp_match, an_isapnp_attach, NULL, NULL);
  84
  85 int
  86 an_isapnp_match(device_t parent, cfdata_t match, void *aux)
  87 {
  88         int pri, variant;
  89
  90         pri = isapnp_devmatch(aux, &isapnp_an_devinfo, &variant);
  91         if (pri && variant > 0)
  92                 pri = 0;
  93         return (pri);
  94 }
  95
  96 void
  97 an_isapnp_attach(device_t parent, device_t self, void *aux)
  98 {
  99         struct an_isapnp_softc *isc = device_private(self);
 100         struct an_softc *sc = &isc->sc_an;
 101         struct isapnp_attach_args *ipa = aux;
 102
 103         printf("\n");
 104
 105         if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
 106                 aprint_error_dev(self, "can't configure isapnp resources\n");
 107                 return;
 108         }
 109
 110         sc->sc_dev = self;
 111         sc->sc_iot = ipa->ipa_iot;
 112         sc->sc_ioh = ipa->ipa_io[0].h;
 113
 114         printf("%s: %s %s\n", device_xname(self), ipa->ipa_devident,
 115             ipa->ipa_devclass);
 116
 117         /* This interface is always enabled. */
 118         sc->sc_enabled = 1;
 119
 120         /* Establish the interrupt handler. */
 121         isc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
 122             ipa->ipa_irq[0].type, IPL_NET, an_intr, sc);
 123         if (isc->sc_ih == NULL) {
 124                 aprint_error_dev(self, "couldn't establish interrupt handler\n");
 125                 return;
 126         }
 127
 128         if (an_attach(sc) != 0) {
 129                 aprint_error_dev(self, "failed to attach controller\n");
 130                 isa_intr_disestablish(ipa->ipa_ic, isc->sc_ih);
 131                 isc->sc_ih = NULL;
 132         }
 133 }