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if_an_pcmcia.c revision 1.26
      1 /* $NetBSD: if_an_pcmcia.c,v 1.26 2005/02/04 02:10:45 perry 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  * 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 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: if_an_pcmcia.c,v 1.26 2005/02/04 02:10:45 perry Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/callout.h>
     45 #include <sys/mbuf.h>
     46 #include <sys/socket.h>
     47 #include <sys/ioctl.h>
     48 #include <sys/errno.h>
     49 #include <sys/syslog.h>
     50 #include <sys/select.h>
     51 #include <sys/device.h>
     52 
     53 #include <net/if.h>
     54 #include <net/if_dl.h>
     55 #include <net/if_ether.h>
     56 #include <net/if_media.h>
     57 
     58 #include <net80211/ieee80211_var.h>
     59 #include <net80211/ieee80211_compat.h>
     60 
     61 #include <machine/cpu.h>
     62 #include <machine/bus.h>
     63 #include <machine/intr.h>
     64 
     65 #include <dev/ic/anreg.h>
     66 #include <dev/ic/anvar.h>
     67 
     68 #include <dev/pcmcia/pcmciareg.h>
     69 #include <dev/pcmcia/pcmciavar.h>
     70 #include <dev/pcmcia/pcmciadevs.h>
     71 
     72 static int an_pcmcia_match(struct device *, struct cfdata *, void *);
     73 static int an_pcmcia_validate_config(struct pcmcia_config_entry *);
     74 static void an_pcmcia_attach(struct device *, struct device *, void *);
     75 static int an_pcmcia_detach(struct device *, int);
     76 static int an_pcmcia_enable(struct an_softc *);
     77 static void an_pcmcia_disable(struct an_softc *);
     78 
     79 struct an_pcmcia_softc {
     80 	struct an_softc sc_an;			/* real "an" softc */
     81 
     82 	/* PCMCIA-specific goo */
     83 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
     84 	int sc_io_window;			/* our i/o window */
     85 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
     86 	void *sc_ih;				/* interrupt handle */
     87 	void *sc_powerhook;			/* power hook descriptor */
     88 
     89 	int sc_state;
     90 #define	AN_PCMCIA_ATTACHED	3
     91 };
     92 
     93 CFATTACH_DECL(an_pcmcia, sizeof(struct an_pcmcia_softc),
     94     an_pcmcia_match, an_pcmcia_attach, an_pcmcia_detach, an_activate);
     95 
     96 static const struct pcmcia_product an_pcmcia_products[] = {
     97 	{ PCMCIA_VENDOR_AIRONET,	PCMCIA_PRODUCT_AIRONET_PC4800,
     98 	  PCMCIA_CIS_AIRONET_PC4800 },
     99 	{ PCMCIA_VENDOR_AIRONET,	PCMCIA_PRODUCT_AIRONET_PC4500,
    100 	  PCMCIA_CIS_AIRONET_PC4500 },
    101 	{ PCMCIA_VENDOR_AIRONET,	PCMCIA_PRODUCT_AIRONET_350,
    102 	  PCMCIA_CIS_AIRONET_350 },
    103 };
    104 static const size_t an_pcmcia_nproducts =
    105     sizeof(an_pcmcia_products) / sizeof(an_pcmcia_products[0]);
    106 
    107 static int
    108 an_pcmcia_match(parent, match, aux)
    109 	struct device *parent;
    110 	struct cfdata *match;
    111 	void *aux;
    112 {
    113 	struct pcmcia_attach_args *pa = aux;
    114 
    115 	if (pcmcia_product_lookup(pa, an_pcmcia_products, an_pcmcia_nproducts,
    116 	    sizeof(an_pcmcia_products[0]), NULL))
    117 		return (1);
    118 	return (0);
    119 }
    120 
    121 static int
    122 an_pcmcia_validate_config(cfe)
    123 	struct pcmcia_config_entry *cfe;
    124 {
    125 	if (cfe->iftype != PCMCIA_IFTYPE_IO ||
    126 	    cfe->num_iospace < 1)
    127 		return (EINVAL);
    128 	return (0);
    129 }
    130 
    131 static void
    132 an_pcmcia_attach(parent, self, aux)
    133 	struct device  *parent, *self;
    134 	void           *aux;
    135 {
    136 	struct an_pcmcia_softc *psc = (void *)self;
    137 	struct an_softc *sc = &psc->sc_an;
    138 	struct pcmcia_attach_args *pa = aux;
    139 	struct pcmcia_config_entry *cfe;
    140 	int error;
    141 
    142 	psc->sc_pf = pa->pf;
    143 
    144 	error = pcmcia_function_configure(pa->pf, an_pcmcia_validate_config);
    145 	if (error) {
    146 		aprint_error("%s: configure failed, error=%d\n", self->dv_xname,
    147 		    error);
    148 		return;
    149 	}
    150 
    151 	cfe = pa->pf->cfe;
    152 	sc->sc_iot = cfe->iospace[0].handle.iot;
    153 	sc->sc_ioh = cfe->iospace[0].handle.ioh;
    154 
    155 	error = an_pcmcia_enable(sc);
    156 	if (error)
    157 		goto fail;
    158 
    159 	sc->sc_enabled = 1;
    160 	sc->sc_enable = an_pcmcia_enable;
    161 	sc->sc_disable = an_pcmcia_disable;
    162 
    163 	error = an_attach(sc);
    164 	if (error) {
    165 		aprint_error("%s: failed to attach controller\n",
    166 		    self->dv_xname);
    167 		goto fail2;
    168 	}
    169 
    170 	psc->sc_powerhook = powerhook_establish(an_power, sc);
    171 
    172 	an_pcmcia_disable(sc);
    173 	sc->sc_enabled = 0;
    174 	psc->sc_state = AN_PCMCIA_ATTACHED;
    175 	return;
    176 
    177 fail2:
    178 	an_pcmcia_disable(sc);
    179 	sc->sc_enabled = 0;
    180 fail:
    181 	pcmcia_function_unconfigure(pa->pf);
    182 }
    183 
    184 
    185 static int
    186 an_pcmcia_detach(self, flags)
    187 	struct device *self;
    188 	int flags;
    189 {
    190 	struct an_pcmcia_softc *psc = (void *)self;
    191 	int error;
    192 
    193 	if (psc->sc_state != AN_PCMCIA_ATTACHED)
    194 		return (0);
    195 
    196 	if (psc->sc_powerhook)
    197 		powerhook_disestablish(psc->sc_powerhook);
    198 
    199 	error = an_detach(&psc->sc_an);
    200 	if (error)
    201 		return (error);
    202 
    203 	pcmcia_function_unconfigure(psc->sc_pf);
    204 
    205 	return (0);
    206 }
    207 
    208 static int
    209 an_pcmcia_enable(sc)
    210 	struct an_softc *sc;
    211 {
    212 	struct an_pcmcia_softc *psc = (void *)sc;
    213 	int error;
    214 
    215 	/* establish the interrupt. */
    216 	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, an_intr, sc);
    217 	if (!psc->sc_ih)
    218 		return (EIO);
    219 
    220 	error = pcmcia_function_enable(psc->sc_pf);
    221 	if (error) {
    222 		pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    223 		psc->sc_ih = 0;
    224 	}
    225 
    226 	return (error);
    227 }
    228 
    229 static void
    230 an_pcmcia_disable(sc)
    231 	struct an_softc *sc;
    232 {
    233 	struct an_pcmcia_softc *psc = (void *)sc;
    234 
    235 	pcmcia_function_disable(psc->sc_pf);
    236 	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    237 	psc->sc_ih = 0;
    238 }
    239