sys/dev/pcmcia/if_an_pcmcia.c

   1 /* $NetBSD: if_an_pcmcia.c,v 1.39 2009/05/12 14:42:18 cegger Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2000, 2004 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Atsushi Onoe
   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 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: if_an_pcmcia.c,v 1.39 2009/05/12 14:42:18 cegger Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/callout.h>
  38 #include <sys/mbuf.h>
  39 #include <sys/socket.h>
  40 #include <sys/ioctl.h>
  41 #include <sys/errno.h>
  42 #include <sys/syslog.h>
  43 #include <sys/select.h>
  44 #include <sys/device.h>
  45
  46 #include <net/if.h>
  47 #include <net/if_dl.h>
  48 #include <net/if_ether.h>
  49 #include <net/if_media.h>
  50
  51 #include <net80211/ieee80211_netbsd.h>
  52 #include <net80211/ieee80211_var.h>
  53
  54 #include <sys/cpu.h>
  55 #include <sys/bus.h>
  56 #include <sys/intr.h>
  57
  58 #include <dev/ic/anreg.h>
  59 #include <dev/ic/anvar.h>
  60
  61 #include <dev/pcmcia/pcmciareg.h>
  62 #include <dev/pcmcia/pcmciavar.h>
  63 #include <dev/pcmcia/pcmciadevs.h>
  64
  65 static int an_pcmcia_match(device_t, cfdata_t, void *);
  66 static int an_pcmcia_validate_config(struct pcmcia_config_entry *);
  67 static void an_pcmcia_attach(device_t, device_t, void *);
  68 static int an_pcmcia_detach(device_t, int);
  69 static int an_pcmcia_enable(struct an_softc *);
  70 static void an_pcmcia_disable(struct an_softc *);
  71
  72 struct an_pcmcia_softc {
  73         struct an_softc sc_an;                  /* real "an" softc */
  74
  75         /* PCMCIA-specific goo */
  76         struct pcmcia_io_handle sc_pcioh;       /* PCMCIA i/o space info */
  77         int sc_io_window;                       /* our i/o window */
  78         struct pcmcia_function *sc_pf;          /* our PCMCIA function */
  79         void *sc_ih;                            /* interrupt handle */
  80
  81         int sc_state;
  82 #define AN_PCMCIA_ATTACHED      3
  83 };
  84
  85 CFATTACH_DECL_NEW(an_pcmcia, sizeof(struct an_pcmcia_softc),
  86     an_pcmcia_match, an_pcmcia_attach, an_pcmcia_detach, an_activate);
  87
  88 static const struct pcmcia_product an_pcmcia_products[] = {
  89         { PCMCIA_VENDOR_AIRONET,        PCMCIA_PRODUCT_AIRONET_PC4800,
  90           PCMCIA_CIS_AIRONET_PC4800 },
  91         { PCMCIA_VENDOR_AIRONET,        PCMCIA_PRODUCT_AIRONET_PC4500,
  92           PCMCIA_CIS_AIRONET_PC4500 },
  93         { PCMCIA_VENDOR_AIRONET,        PCMCIA_PRODUCT_AIRONET_350,
  94           PCMCIA_CIS_AIRONET_350 },
  95 };
  96 static const size_t an_pcmcia_nproducts =
  97     sizeof(an_pcmcia_products) / sizeof(an_pcmcia_products[0]);
  98
  99 static int
 100 an_pcmcia_match(device_t parent, cfdata_t match,
 101     void *aux)
 102 {
 103         struct pcmcia_attach_args *pa = aux;
 104
 105         if (pcmcia_product_lookup(pa, an_pcmcia_products, an_pcmcia_nproducts,
 106             sizeof(an_pcmcia_products[0]), NULL))
 107                 return (1);
 108         return (0);
 109 }
 110
 111 static int
 112 an_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
 113 {
 114         if (cfe->iftype != PCMCIA_IFTYPE_IO ||
 115             cfe->num_iospace < 1)
 116                 return (EINVAL);
 117         return (0);
 118 }
 119
 120 static void
 121 an_pcmcia_attach(struct device  *parent, device_t self,
 122     void *aux)
 123 {
 124         struct an_pcmcia_softc *psc = device_private(self);
 125         struct an_softc *sc = &psc->sc_an;
 126         struct pcmcia_attach_args *pa = aux;
 127         struct pcmcia_config_entry *cfe;
 128         int error;
 129
 130         sc->sc_dev = self;
 131         psc->sc_pf = pa->pf;
 132
 133         error = pcmcia_function_configure(pa->pf, an_pcmcia_validate_config);
 134         if (error) {
 135                 aprint_error_dev(self, "configure failed, error=%d\n",
 136                     error);
 137                 return;
 138         }
 139
 140         cfe = pa->pf->cfe;
 141         sc->sc_iot = cfe->iospace[0].handle.iot;
 142         sc->sc_ioh = cfe->iospace[0].handle.ioh;
 143
 144         error = an_pcmcia_enable(sc);
 145         if (error)
 146                 goto fail;
 147
 148         sc->sc_enabled = 1;
 149         sc->sc_enable = an_pcmcia_enable;
 150         sc->sc_disable = an_pcmcia_disable;
 151
 152         error = an_attach(sc);
 153         if (error) {
 154                 aprint_error_dev(self, "failed to attach controller\n");
 155                 goto fail2;
 156         }
 157
 158         if (pmf_device_register(self, NULL, NULL))
 159                 pmf_class_network_register(self, &sc->sc_if);
 160         else
 161                 aprint_error_dev(self, "couldn't establish power handler\n");
 162
 163         an_pcmcia_disable(sc);
 164         sc->sc_enabled = 0;
 165         psc->sc_state = AN_PCMCIA_ATTACHED;
 166         return;
 167
 168 fail2:
 169         an_pcmcia_disable(sc);
 170         sc->sc_enabled = 0;
 171 fail:
 172         pcmcia_function_unconfigure(pa->pf);
 173 }
 174
 175
 176 static int
 177 an_pcmcia_detach(device_t self, int flags)
 178 {
 179         struct an_pcmcia_softc *psc = device_private(self);
 180         int error;
 181
 182         if (psc->sc_state != AN_PCMCIA_ATTACHED)
 183                 return (0);
 184
 185         pmf_device_deregister(self);
 186
 187         error = an_detach(&psc->sc_an);
 188         if (error)
 189                 return (error);
 190
 191         pcmcia_function_unconfigure(psc->sc_pf);
 192
 193         return (0);
 194 }
 195
 196 static int
 197 an_pcmcia_enable(struct an_softc *sc)
 198 {
 199         struct an_pcmcia_softc *psc = (void *)sc;
 200         int error;
 201
 202         /* establish the interrupt. */
 203         psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, an_intr, sc);
 204         if (!psc->sc_ih)
 205                 return (EIO);
 206
 207         error = pcmcia_function_enable(psc->sc_pf);
 208         if (error) {
 209                 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
 210                 psc->sc_ih = 0;
 211         }
 212
 213         return (error);
 214 }
 215
 216 static void
 217 an_pcmcia_disable(struct an_softc *sc)
 218 {
 219         struct an_pcmcia_softc *psc = (void *)sc;
 220
 221         pcmcia_function_disable(psc->sc_pf);
 222         pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
 223         psc->sc_ih = 0;
 224 }