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aic_pcmcia.c revision 1.18
      1 /*	$NetBSD: aic_pcmcia.c,v 1.18 2001/11/13 07:26:32 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Marc Horowitz.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: aic_pcmcia.c,v 1.18 2001/11/13 07:26:32 lukem Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/select.h>
     38 #include <sys/device.h>
     39 
     40 #include <machine/cpu.h>
     41 #include <machine/bus.h>
     42 #include <machine/intr.h>
     43 
     44 #include <dev/scsipi/scsipi_all.h>
     45 #include <dev/scsipi/scsipiconf.h>
     46 #include <dev/scsipi/scsi_all.h>
     47 
     48 #include <dev/ic/aic6360var.h>
     49 
     50 #include <dev/pcmcia/pcmciareg.h>
     51 #include <dev/pcmcia/pcmciavar.h>
     52 #include <dev/pcmcia/pcmciadevs.h>
     53 
     54 int	aic_pcmcia_match __P((struct device *, struct cfdata *, void *));
     55 void	aic_pcmcia_attach __P((struct device *, struct device *, void *));
     56 int	aic_pcmcia_detach __P((struct device *, int));
     57 
     58 struct aic_pcmcia_softc {
     59 	struct aic_softc sc_aic;		/* real "aic" softc */
     60 
     61 	/* PCMCIA-specific goo. */
     62 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
     63 	int sc_io_window;			/* our i/o window */
     64 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
     65 	void *sc_ih;				/* interrupt handler */
     66 	int sc_flags;
     67 #define AIC_PCMCIA_ATTACH	0x0001		/* attach is in progress */
     68 };
     69 
     70 struct cfattach aic_pcmcia_ca = {
     71 	sizeof(struct aic_pcmcia_softc), aic_pcmcia_match, aic_pcmcia_attach,
     72 	aic_pcmcia_detach, aic_activate
     73 };
     74 
     75 int	aic_pcmcia_enable __P((struct device *, int));
     76 
     77 const struct pcmcia_product aic_pcmcia_products[] = {
     78 	{ PCMCIA_STR_ADAPTEC_APA1460,		PCMCIA_VENDOR_ADAPTEC,
     79 	  PCMCIA_PRODUCT_ADAPTEC_APA1460,	0 },
     80 
     81 	{ PCMCIA_STR_ADAPTEC_APA1460A,		PCMCIA_VENDOR_ADAPTEC,
     82 	  PCMCIA_PRODUCT_ADAPTEC_APA1460A,	0 },
     83 
     84 	{ PCMCIA_STR_NEWMEDIA_BUSTOASTER,	PCMCIA_VENDOR_NEWMEDIA,
     85 	  PCMCIA_PRODUCT_NEWMEDIA_BUSTOASTER,	0 },
     86 
     87 	{ NULL }
     88 };
     89 
     90 int
     91 aic_pcmcia_match(parent, match, aux)
     92 	struct device *parent;
     93 	struct cfdata *match;
     94 	void *aux;
     95 {
     96 	struct pcmcia_attach_args *pa = aux;
     97 
     98         if (pcmcia_product_lookup(pa, aic_pcmcia_products,
     99             sizeof aic_pcmcia_products[0], NULL) != NULL)
    100 		return (1);
    101 	return (0);
    102 }
    103 
    104 void
    105 aic_pcmcia_attach(parent, self, aux)
    106 	struct device *parent, *self;
    107 	void *aux;
    108 {
    109 	struct aic_pcmcia_softc *psc = (void *)self;
    110 	struct aic_softc *sc = &psc->sc_aic;
    111 	struct pcmcia_attach_args *pa = aux;
    112 	struct pcmcia_config_entry *cfe;
    113 	struct pcmcia_function *pf = pa->pf;
    114 	const struct pcmcia_product *pp;
    115 
    116 	psc->sc_pf = pf;
    117 
    118 	for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL;
    119 	    cfe = SIMPLEQ_NEXT(cfe, cfe_list)) {
    120 		if (cfe->num_memspace != 0 ||
    121 		    cfe->num_iospace != 1)
    122 			continue;
    123 
    124 		/*
    125 		 * The bustoaster has a default config as first
    126 		 * entry, we don't want to use that.
    127 		 */
    128 		if (pa->manufacturer == PCMCIA_VENDOR_NEWMEDIA &&
    129 		    pa->product == PCMCIA_PRODUCT_NEWMEDIA_BUSTOASTER &&
    130 		    cfe->iospace[0].start == 0)
    131 			continue;
    132 
    133 		if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
    134 		    cfe->iospace[0].length, 0, &psc->sc_pcioh) == 0)
    135 			break;
    136 	}
    137 
    138 	if (cfe == 0) {
    139 		printf(": can't alloc i/o space\n");
    140 		goto no_config_entry;
    141 	}
    142 
    143 	sc->sc_iot = psc->sc_pcioh.iot;
    144 	sc->sc_ioh = psc->sc_pcioh.ioh;
    145 
    146 	/* Enable the card. */
    147 	pcmcia_function_init(pf, cfe);
    148 	if (pcmcia_function_enable(pf)) {
    149 		printf(": function enable failed\n");
    150 		goto enable_failed;
    151 	}
    152 
    153 	/* Map in the io space */
    154 	if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size,
    155 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    156 		printf(": can't map i/o space\n");
    157 		goto iomap_failed;
    158 	}
    159 
    160 	if (!aic_find(sc->sc_iot, sc->sc_ioh)) {
    161 		printf(": unable to detect chip!\n");
    162 		goto no_aic_found;
    163 	}
    164 
    165 	pp = pcmcia_product_lookup(pa, aic_pcmcia_products,
    166 	    sizeof aic_pcmcia_products[0], NULL);
    167 	if (pp == NULL) {
    168 		printf("\n");
    169 		panic("aic_pcmcia_attach: impossible");
    170 	}
    171 
    172 	printf(": %s\n", pp->pp_name);
    173 
    174 	/* We can enable and disable the controller. */
    175 	sc->sc_adapter.adapt_enable = aic_pcmcia_enable;
    176 
    177 	psc->sc_flags |= AIC_PCMCIA_ATTACH;
    178 	aicattach(sc);
    179 	psc->sc_flags &= ~AIC_PCMCIA_ATTACH;
    180 	return;
    181 
    182  no_aic_found:
    183 	/* Unmap our i/o window. */
    184 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    185 
    186  iomap_failed:
    187 	/* Disable the device. */
    188 	pcmcia_function_disable(psc->sc_pf);
    189 
    190  enable_failed:
    191 	/* Unmap our i/o space. */
    192 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    193 
    194  no_config_entry:
    195 	psc->sc_io_window = -1;
    196 }
    197 
    198 int
    199 aic_pcmcia_detach(self, flags)
    200 	struct device *self;
    201 	int flags;
    202 {
    203 	struct aic_pcmcia_softc *sc = (struct aic_pcmcia_softc *)self;
    204 	int error;
    205 
    206 	if (sc->sc_io_window == -1)
    207 		/* Nothing to detach. */
    208 		return (0);
    209 
    210 	if ((error = aic_detach(self, flags)) != 0)
    211 		return (error);
    212 
    213 	/* Unmap our i/o window and i/o space. */
    214 	pcmcia_io_unmap(sc->sc_pf, sc->sc_io_window);
    215 	pcmcia_io_free(sc->sc_pf, &sc->sc_pcioh);
    216 
    217 	return (0);
    218 }
    219 int
    220 aic_pcmcia_enable(self, onoff)
    221 	struct device *self;
    222 	int onoff;
    223 {
    224 	struct aic_pcmcia_softc *psc = (void *)self;
    225 
    226 	if (onoff) {
    227 		/* Establish the interrupt handler. */
    228 		psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_BIO,
    229 		    aicintr, &psc->sc_aic);
    230 		if (psc->sc_ih == NULL) {
    231 			printf("%s: couldn't establish interrupt handler\n",
    232 			    psc->sc_aic.sc_dev.dv_xname);
    233 			return (EIO);
    234 		}
    235 
    236 		/*
    237 		 * If attach is in progress, we know that card power is
    238 		 * enabled and chip will be initialized later.
    239 		 * Otherwise, enable and reset now.
    240 		 */
    241 		if ((psc->sc_flags & AIC_PCMCIA_ATTACH) == 0) {
    242 			if (pcmcia_function_enable(psc->sc_pf)) {
    243 				printf("%s: couldn't enable PCMCIA function\n",
    244 				    psc->sc_aic.sc_dev.dv_xname);
    245 				pcmcia_intr_disestablish(psc->sc_pf,
    246 				    psc->sc_ih);
    247 				return (EIO);
    248 			}
    249 
    250 			/* Initialize only chip.  */
    251 			aic_init(&psc->sc_aic, 0);
    252 		}
    253 	} else {
    254 		pcmcia_function_disable(psc->sc_pf);
    255 		pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    256 	}
    257 
    258 	return (0);
    259 }
    260