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aha_isapnp.c revision 1.7 
      1 /*	$NetBSD: aha_isapnp.c,v 1.7 2002/10/02 16:33:56 thorpej 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 1.7 2002/10/02 16:33:56 thorpej 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 CFATTACH_DECL(aha_isapnp, sizeof(struct aha_softc),
     67     aha_isapnp_probe, aha_isapnp_attach, NULL, NULL);
     68 
     69 int
     70 aha_isapnp_probe(parent, match, aux)
     71 	struct device *parent;
     72 	struct cfdata *match;
     73 	void *aux;
     74 {
     75 	int pri, variant;
     76 
     77 	pri = isapnp_devmatch(aux, &isapnp_aha_devinfo, &variant);
     78 	if (pri && variant > 0)
     79 		pri = 0;
     80 	return (pri);
     81 }
     82 
     83 void
     84 aha_isapnp_attach(parent, self, aux)
     85 	struct device *parent, *self;
     86 	void *aux;
     87 {
     88 	struct aha_softc *sc = (void *)self;
     89 	struct aha_probe_data apd;
     90 	struct isapnp_attach_args *ipa = aux;
     91 
     92 	printf("\n");
     93 
     94 	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
     95 		printf("%s: error in region allocation\n",
     96 		    sc->sc_dev.dv_xname);
     97 		return;
     98 	}
     99 
    100 	sc->sc_iot = ipa->ipa_iot;
    101 	sc->sc_ioh = ipa->ipa_io[0].h;
    102 	sc->sc_dmat = ipa->ipa_dmat;
    103 
    104 	if (!aha_find(sc->sc_iot, sc->sc_ioh, &apd)) {
    105 		printf("%s: aha_find failed\n", sc->sc_dev.dv_xname);
    106 		return;
    107 	}
    108 
    109 	if (ipa->ipa_ndrq == 0) {
    110 		if (apd.sc_drq != -1) {
    111 			printf("%s: no PnP drq, but card has one\n",
    112 			    sc->sc_dev.dv_xname);
    113 			return;
    114 		}
    115 	} else if (apd.sc_drq != ipa->ipa_drq[0].num) {
    116 		printf("%s: card drq # (%d) != PnP # (%d)\n",
    117 		    sc->sc_dev.dv_xname, apd.sc_drq, ipa->ipa_drq[0].num);
    118 		return;
    119 	} else {
    120 		int error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num);
    121 		if (error) {
    122 			printf("%s: unable to cascade DRQ, error = %d\n",
    123 			    sc->sc_dev.dv_xname, error);
    124 			return;
    125 		}
    126 	}
    127 
    128 	if (apd.sc_irq != ipa->ipa_irq[0].num) {
    129 		printf("%s: card irq # (%d) != PnP # (%d)\n",
    130 		    sc->sc_dev.dv_xname, apd.sc_irq, ipa->ipa_irq[0].num);
    131 		return;
    132 	}
    133 
    134 
    135 	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
    136 	    ipa->ipa_irq[0].type, IPL_BIO, aha_intr, sc);
    137 
    138 	if (sc->sc_ih == NULL) {
    139 		printf("%s: couldn't establish interrupt\n",
    140 		    sc->sc_dev.dv_xname);
    141 		return;
    142 	}
    143 
    144 	aha_attach(sc, &apd);
    145 }
    146