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aha_isapnp.c revision 1.4 
      1 /*	$NetBSD: aha_isapnp.c,v 1.4 2001/11/13 07:56:39 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      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: aha_isapnp.c,v 1.4 2001/11/13 07:56:39 lukem Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/conf.h>
     45 #include <sys/device.h>
     46 
     47 #include <machine/bus.h>
     48 
     49 #include <dev/scsipi/scsi_all.h>
     50 #include <dev/scsipi/scsipi_all.h>
     51 #include <dev/scsipi/scsiconf.h>
     52 
     53 #include <dev/isa/isavar.h>
     54 
     55 #include <dev/isapnp/isapnpreg.h>
     56 #include <dev/isapnp/isapnpvar.h>
     57 #include <dev/isapnp/isapnpdevs.h>
     58 
     59 
     60 #include <dev/ic/ahareg.h>
     61 #include <dev/ic/ahavar.h>
     62 
     63 int	aha_isapnp_probe __P((struct device *, struct cfdata *, void *));
     64 void	aha_isapnp_attach __P((struct device *, struct device *, void *));
     65 
     66 struct cfattach aha_isapnp_ca = {
     67 	sizeof(struct aha_softc), aha_isapnp_probe, aha_isapnp_attach
     68 };
     69 
     70 int
     71 aha_isapnp_probe(parent, match, aux)
     72 	struct device *parent;
     73 	struct cfdata *match;
     74 	void *aux;
     75 {
     76 	int pri, variant;
     77 
     78 	pri = isapnp_devmatch(aux, &isapnp_aha_devinfo, &variant);
     79 	if (pri && variant > 0)
     80 		pri = 0;
     81 	return (pri);
     82 }
     83 
     84 void
     85 aha_isapnp_attach(parent, self, aux)
     86 	struct device *parent, *self;
     87 	void *aux;
     88 {
     89 	struct aha_softc *sc = (void *)self;
     90 	struct aha_probe_data apd;
     91 	struct isapnp_attach_args *ipa = aux;
     92 
     93 	printf("\n");
     94 
     95 	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
     96 		printf("%s: error in region allocation\n",
     97 		    sc->sc_dev.dv_xname);
     98 		return;
     99 	}
    100 
    101 	sc->sc_iot = ipa->ipa_iot;
    102 	sc->sc_ioh = ipa->ipa_io[0].h;
    103 	sc->sc_dmat = ipa->ipa_dmat;
    104 
    105 	if (!aha_find(sc->sc_iot, sc->sc_ioh, &apd)) {
    106 		printf("%s: aha_find failed\n", sc->sc_dev.dv_xname);
    107 		return;
    108 	}
    109 
    110 	if (ipa->ipa_ndrq == 0) {
    111 		if (apd.sc_drq != -1) {
    112 			printf("%s: no PnP drq, but card has one\n",
    113 			    sc->sc_dev.dv_xname);
    114 			return;
    115 		}
    116 	} else if (apd.sc_drq != ipa->ipa_drq[0].num) {
    117 		printf("%s: card drq # (%d) != PnP # (%d)\n",
    118 		    sc->sc_dev.dv_xname, apd.sc_drq, ipa->ipa_drq[0].num);
    119 		return;
    120 	} else {
    121 		int error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num);
    122 		if (error) {
    123 			printf("%s: unable to cascade DRQ, error = %d\n",
    124 			    sc->sc_dev.dv_xname, error);
    125 			return;
    126 		}
    127 	}
    128 
    129 	if (apd.sc_irq != ipa->ipa_irq[0].num) {
    130 		printf("%s: card irq # (%d) != PnP # (%d)\n",
    131 		    sc->sc_dev.dv_xname, apd.sc_irq, ipa->ipa_irq[0].num);
    132 		return;
    133 	}
    134 
    135 
    136 	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
    137 	    ipa->ipa_irq[0].type, IPL_BIO, aha_intr, sc);
    138 
    139 	if (sc->sc_ih == NULL) {
    140 		printf("%s: couldn't establish interrupt\n",
    141 		    sc->sc_dev.dv_xname);
    142 		return;
    143 	}
    144 
    145 	aha_attach(sc, &apd);
    146 }
    147