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if_an_pcmcia.c revision 1.24
      1 /* $NetBSD: if_an_pcmcia.c,v 1.24 2004/08/10 19:12:25 mycroft 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 1.24 2004/08/10 19:12:25 mycroft 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 __P((struct device *, struct cfdata *, void *));
     73 static void an_pcmcia_attach __P((struct device *, struct device *, void *));
     74 static int an_pcmcia_detach __P((struct device *, int));
     75 static int an_pcmcia_enable __P((struct an_softc *));
     76 static void an_pcmcia_disable __P((struct an_softc *));
     77 
     78 struct an_pcmcia_softc {
     79 	struct an_softc sc_an;			/* real "an" softc */
     80 
     81 	/* PCMCIA-specific goo */
     82 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
     83 	int sc_io_window;			/* our i/o window */
     84 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
     85 	void *sc_ih;				/* interrupt handle */
     86 	void *sc_powerhook;			/* power hook descriptor */
     87 };
     88 
     89 CFATTACH_DECL(an_pcmcia, sizeof(struct an_pcmcia_softc),
     90     an_pcmcia_match, an_pcmcia_attach, an_pcmcia_detach, an_activate);
     91 
     92 static const struct pcmcia_product an_pcmcia_products[] = {
     93 	{ PCMCIA_VENDOR_AIRONET,	PCMCIA_PRODUCT_AIRONET_PC4800,
     94 	  PCMCIA_CIS_AIRONET_PC4800 },
     95 	{ PCMCIA_VENDOR_AIRONET,	PCMCIA_PRODUCT_AIRONET_PC4500,
     96 	  PCMCIA_CIS_AIRONET_PC4500 },
     97 	{ PCMCIA_VENDOR_AIRONET,	PCMCIA_PRODUCT_AIRONET_350,
     98 	  PCMCIA_CIS_AIRONET_350 },
     99 };
    100 static const size_t an_pcmcia_nproducts =
    101     sizeof(an_pcmcia_products) / sizeof(an_pcmcia_products[0]);
    102 
    103 static int
    104 an_pcmcia_enable(sc)
    105 	struct an_softc *sc;
    106 {
    107 	struct an_pcmcia_softc *psc = (struct an_pcmcia_softc *)sc;
    108 	struct pcmcia_function *pf = psc->sc_pf;
    109 
    110 	/* establish the interrupt. */
    111 	psc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, an_intr, sc);
    112 	if (psc->sc_ih == NULL) {
    113 		printf("%s: couldn't establish interrupt\n",
    114 		    sc->sc_dev.dv_xname);
    115 		return (1);
    116 	}
    117 
    118 	if (pcmcia_function_enable(pf)) {
    119 		pcmcia_intr_disestablish(pf, psc->sc_ih);
    120 		return (1);
    121 	}
    122 	DELAY(1000);
    123 
    124 	return (0);
    125 }
    126 
    127 static void
    128 an_pcmcia_disable(sc)
    129 	struct an_softc *sc;
    130 {
    131 	struct an_pcmcia_softc *psc = (struct an_pcmcia_softc *)sc;
    132 	struct pcmcia_function *pf = psc->sc_pf;
    133 
    134 	pcmcia_function_disable(pf);
    135 	pcmcia_intr_disestablish(pf, psc->sc_ih);
    136 }
    137 
    138 static int
    139 an_pcmcia_match(parent, match, aux)
    140 	struct device *parent;
    141 	struct cfdata *match;
    142 	void *aux;
    143 {
    144 	struct pcmcia_attach_args *pa = aux;
    145 
    146 	if (pcmcia_product_lookup(pa, an_pcmcia_products, an_pcmcia_nproducts,
    147 	    sizeof(an_pcmcia_products[0]), NULL))
    148 		return (1);
    149 	return (0);
    150 }
    151 
    152 static void
    153 an_pcmcia_attach(parent, self, aux)
    154 	struct device  *parent, *self;
    155 	void           *aux;
    156 {
    157 	struct an_pcmcia_softc *psc = (void *)self;
    158 	struct an_softc *sc = &psc->sc_an;
    159 	struct pcmcia_attach_args *pa = aux;
    160 	struct pcmcia_config_entry *cfe;
    161 
    162 	psc->sc_pf = pa->pf;
    163 	if ((cfe = SIMPLEQ_FIRST(&pa->pf->cfe_head)) == NULL) {
    164 		printf("%s: no suitable CIS info found\n", sc->sc_dev.dv_xname);
    165 		goto fail1;
    166 	}
    167 
    168 	if (pcmcia_io_alloc(psc->sc_pf, cfe->iospace[0].start,
    169 	    cfe->iospace[0].length, AN_IOSIZ, &psc->sc_pcioh) != 0) {
    170 		printf("%s: failed to allocate io space\n",
    171 		    sc->sc_dev.dv_xname);
    172 		goto fail1;
    173 	}
    174 
    175 	if (pcmcia_io_map(psc->sc_pf, PCMCIA_WIDTH_AUTO, &psc->sc_pcioh,
    176 	    &psc->sc_io_window) != 0) {
    177 		printf("%s: failed to map io space\n", sc->sc_dev.dv_xname);
    178 		goto fail2;
    179 	}
    180 
    181 	sc->sc_iot = psc->sc_pcioh.iot;
    182 	sc->sc_ioh = psc->sc_pcioh.ioh;
    183 
    184 	pcmcia_function_init(psc->sc_pf, cfe);
    185 
    186 	if (an_pcmcia_enable(sc)) {
    187 		printf("%s: enable failed\n", sc->sc_dev.dv_xname);
    188 		goto fail3;
    189 	}
    190 
    191 	sc->sc_enabled = 1;
    192 	sc->sc_enable = an_pcmcia_enable;
    193 	sc->sc_disable = an_pcmcia_disable;
    194 
    195 	if (an_attach(sc) != 0) {
    196 		printf("%s: failed to attach controller\n",
    197 		    sc->sc_dev.dv_xname);
    198 		goto fail4;
    199 	}
    200 	psc->sc_powerhook = powerhook_establish(an_power, sc);
    201 
    202 	/* disable device and disestablish the interrupt */
    203 	sc->sc_enabled = 0;
    204 	an_pcmcia_disable(sc);
    205 	return;
    206 
    207 fail4:
    208 	sc->sc_enabled = 0;
    209 	an_pcmcia_disable(sc);
    210 fail3:
    211 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    212 fail2:
    213 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    214 fail1:
    215 	psc->sc_io_window = -1;
    216 }
    217 
    218 
    219 static int
    220 an_pcmcia_detach(self, flags)
    221 	struct device *self;
    222 	int flags;
    223 {
    224 	struct an_pcmcia_softc *psc = (struct an_pcmcia_softc *)self;
    225 	int error;
    226 
    227 	if (psc->sc_io_window == -1)
    228 		/* Nothing to detach. */
    229 		return (0);
    230 
    231 	if (psc->sc_powerhook != NULL)
    232 		powerhook_disestablish(psc->sc_powerhook);
    233 
    234 	error = an_detach(&psc->sc_an);
    235 	if (error != 0)
    236 		return (error);
    237 
    238 	/* Unmap our i/o window. */
    239 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    240 
    241 	/* Free our i/o space. */
    242 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    243 	return (0);
    244 }
    245