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if_cs_pcmcia.c revision 1.1
      1 /* $NetBSD: if_cs_pcmcia.c,v 1.1 2001/11/26 11:17:34 yamt Exp $ */
      2 
      3 /*-
      4  * Copyright (c)2001 YAMAMOTO Takashi,
      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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: if_cs_pcmcia.c,v 1.1 2001/11/26 11:17:34 yamt Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 #include <sys/socket.h>
     36 #include <sys/queue.h>
     37 
     38 #include "rnd.h"
     39 #if NRND > 0
     40 #include <sys/rnd.h>
     41 #endif
     42 
     43 #include <net/if.h>
     44 #include <net/if_ether.h>
     45 #include <net/if_media.h>
     46 
     47 #include <machine/bus.h>
     48 #include <machine/intr.h>
     49 
     50 #include <dev/pcmcia/pcmciareg.h>
     51 #include <dev/pcmcia/pcmciavar.h>
     52 #include <dev/pcmcia/pcmciadevs.h>
     53 
     54 #include <dev/isa/isavar.h> /*XXX*/
     55 
     56 #include <dev/isa/cs89x0reg.h>
     57 #include <dev/isa/cs89x0var.h>
     58 
     59 #define DEVNAME(sc) ((sc)->sc_dev.dv_xname)
     60 
     61 struct cs_pcmcia_softc;
     62 
     63 static int cs_pcmcia_match(struct device *, struct cfdata *, void *);
     64 static void cs_pcmcia_attach(struct device *, struct device *, void *);
     65 static int cs_pcmcia_detach(struct device *, int);
     66 static int cs_pcmcia_enable(struct cs_softc *);
     67 static void cs_pcmcia_disable(struct cs_softc *);
     68 
     69 struct cs_pcmcia_softc {
     70 	struct cs_softc sc_cs; /* real "cs" softc */
     71 
     72 	struct pcmcia_io_handle sc_pcioh;
     73 	struct pcmcia_function *sc_pf;
     74 	int sc_io_window;
     75 	int sc_flags;
     76 };
     77 
     78 #define CS_PCMCIA_FLAGS_IO_ALLOCATED 1
     79 #define CS_PCMCIA_FLAGS_IO_MAPPED 2
     80 
     81 struct cfattach cs_pcmcia_ca = {
     82 	sizeof(struct cs_pcmcia_softc),
     83 	cs_pcmcia_match,
     84 	cs_pcmcia_attach,
     85 	cs_pcmcia_detach,
     86 	cs_activate
     87 };
     88 
     89 static int
     90 cs_pcmcia_match(struct device *parent, struct cfdata *match, void *aux)
     91 {
     92 	struct pcmcia_attach_args *pa = aux;
     93 
     94 	if (pa->card->manufacturer == PCMCIA_VENDOR_IBM
     95 		&& pa->card->product == PCMCIA_PRODUCT_IBM_ETHERJET)
     96 		return 1;
     97 
     98 	return 0;
     99 }
    100 
    101 static void
    102 cs_pcmcia_attach(struct device *parent, struct device *self, void *aux)
    103 {
    104 	struct cs_pcmcia_softc *psc = (void *)self;
    105 	struct cs_softc *sc = (void *)&psc->sc_cs;
    106 	struct pcmcia_attach_args *pa = aux;
    107 	struct pcmcia_config_entry *cfe;
    108 	struct pcmcia_function *pf;
    109 	char devinfo[256];
    110 
    111 	/* Print out what we are. */
    112 	pcmcia_devinfo(&pa->pf->sc->card, 0, devinfo, sizeof(devinfo));
    113 	printf(": %s\n", devinfo);
    114 
    115 	pf = psc->sc_pf = pa->pf;
    116 
    117 	cfe = SIMPLEQ_FIRST(&pa->pf->cfe_head);
    118 
    119 	if (cfe->num_iospace != 1) {
    120 		printf("%s: unexpected number of iospace(%d)\n",
    121 			DEVNAME(sc), cfe->num_iospace);
    122 		goto fail;
    123 	}
    124 
    125 	if (cfe->iospace[0].length < CS8900_IOSIZE) {
    126 		printf("%s: unexpected iosize(%lu)\n",
    127 			DEVNAME(sc), cfe->iospace[0].length);
    128 		goto fail;
    129 	}
    130 
    131 	if (cfe->num_memspace != 0) {
    132 		printf("%s: unexpected number of memspace(%d)\n",
    133 			DEVNAME(sc), cfe->num_memspace);
    134 		goto fail;
    135 	}
    136 
    137 	if (pcmcia_io_alloc(pf, cfe->iospace[0].start,
    138 		cfe->iospace[0].length, cfe->iospace[0].length,
    139 		&psc->sc_pcioh) != 0) {
    140 		printf("%s: can't allocate i/o space %lx:%lx\n", DEVNAME(sc),
    141 			cfe->iospace[0].start, cfe->iospace[0].length);
    142 		goto fail;
    143 	}
    144 	psc->sc_flags |= CS_PCMCIA_FLAGS_IO_ALLOCATED;
    145 
    146 	sc->sc_iot = psc->sc_pcioh.iot;
    147 	sc->sc_ioh = psc->sc_pcioh.ioh;
    148 	sc->sc_drq = ISACF_DRQ_DEFAULT;
    149 	sc->sc_irq = -1;
    150 #define CS_PCMCIA_HACK_FOR_CARDBUS
    151 #ifdef CS_PCMCIA_HACK_FOR_CARDBUS
    152 	/*
    153 	 * XXX is there a generic way to know if it's a cardbus or not?
    154 	 */
    155 	sc->sc_cfgflags |= CFGFLG_CARDBUS_HACK;
    156 #endif
    157 	sc->sc_enable = cs_pcmcia_enable;
    158 	sc->sc_disable = cs_pcmcia_disable;
    159 
    160 	pcmcia_function_init(pa->pf, cfe);
    161 	if (cs_pcmcia_enable(sc))
    162 		goto fail;
    163 
    164 	/* chip attach */
    165 	if (cs_attach(sc, 0, 0, 0, 0))
    166 		goto fail;
    167 
    168 	cs_pcmcia_disable(sc);
    169 
    170 	return;
    171 
    172 fail:
    173 	cs_pcmcia_detach((struct device *)psc, 0);
    174 
    175 	return;
    176 }
    177 
    178 static int
    179 cs_pcmcia_detach(struct device *self, int flags)
    180 {
    181 	struct cs_pcmcia_softc *psc = (void *)self;
    182 	struct cs_softc *sc = &psc->sc_cs;
    183 	struct pcmcia_function *pf = psc->sc_pf;
    184 	int rv;
    185 
    186 	rv = cs_detach(sc);
    187 	if (rv)
    188 		return rv;
    189 
    190 	cs_pcmcia_disable(sc);
    191 
    192 	if (psc->sc_flags & CS_PCMCIA_FLAGS_IO_ALLOCATED) {
    193 		pcmcia_io_free(pf, &psc->sc_pcioh);
    194 		psc->sc_flags &= ~CS_PCMCIA_FLAGS_IO_ALLOCATED;
    195 	}
    196 
    197 	return 0;
    198 }
    199 
    200 static int
    201 cs_pcmcia_enable(struct cs_softc *sc)
    202 {
    203 	struct cs_pcmcia_softc *psc = (void *)sc;
    204 	struct pcmcia_function *pf = psc->sc_pf;
    205 
    206 	if (pcmcia_io_map(pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size,
    207 		&psc->sc_pcioh, &psc->sc_io_window) != 0) {
    208 		printf("%s: can't map i/o space\n", DEVNAME(sc));
    209 		goto fail;
    210 	}
    211 	psc->sc_flags |= CS_PCMCIA_FLAGS_IO_MAPPED;
    212 
    213 	if (pcmcia_function_enable(pf)) {
    214 		printf("%s: can't enable function\n", DEVNAME(sc));
    215 		goto fail;
    216 	}
    217 
    218 	sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, cs_intr, sc);
    219 	if (sc->sc_ih == 0) {
    220 		printf("%s: can't establish interrupt\n", DEVNAME(sc));
    221 		goto fail;
    222 	}
    223 
    224 	return 0;
    225 
    226 fail:
    227 	return EIO;
    228 }
    229 
    230 static void
    231 cs_pcmcia_disable(struct cs_softc *sc)
    232 {
    233 	struct cs_pcmcia_softc *psc = (void *)sc;
    234 	struct pcmcia_function *pf = psc->sc_pf;
    235 
    236 	if (sc->sc_ih != 0) {
    237 		pcmcia_intr_disestablish(pf, sc->sc_ih);
    238 		sc->sc_ih = 0;
    239 	}
    240 
    241 	pcmcia_function_disable(pf);
    242 
    243 	if (psc->sc_flags & CS_PCMCIA_FLAGS_IO_MAPPED) {
    244 		pcmcia_io_unmap(pf, psc->sc_io_window);
    245 		psc->sc_flags &= ~CS_PCMCIA_FLAGS_IO_MAPPED;
    246 	}
    247 }
    248