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aha_isapnp.c revision 1.17 
      1 /*	$NetBSD: aha_isapnp.c,v 1.17 2009/05/12 10:16:35 cegger 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: aha_isapnp.c,v 1.17 2009/05/12 10:16:35 cegger Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/conf.h>
     38 #include <sys/device.h>
     39 
     40 #include <sys/bus.h>
     41 
     42 #include <dev/scsipi/scsi_all.h>
     43 #include <dev/scsipi/scsipi_all.h>
     44 #include <dev/scsipi/scsiconf.h>
     45 
     46 #include <dev/isa/isavar.h>
     47 
     48 #include <dev/isapnp/isapnpreg.h>
     49 #include <dev/isapnp/isapnpvar.h>
     50 #include <dev/isapnp/isapnpdevs.h>
     51 
     52 
     53 #include <dev/ic/ahareg.h>
     54 #include <dev/ic/ahavar.h>
     55 
     56 int	aha_isapnp_probe(device_t, cfdata_t, void *);
     57 void	aha_isapnp_attach(device_t, device_t, void *);
     58 
     59 CFATTACH_DECL(aha_isapnp, sizeof(struct aha_softc),
     60     aha_isapnp_probe, aha_isapnp_attach, NULL, NULL);
     61 
     62 int
     63 aha_isapnp_probe(device_t parent, cfdata_t match, void *aux)
     64 {
     65 	int pri, variant;
     66 
     67 	pri = isapnp_devmatch(aux, &isapnp_aha_devinfo, &variant);
     68 	if (pri && variant > 0)
     69 		pri = 0;
     70 	return (pri);
     71 }
     72 
     73 void
     74 aha_isapnp_attach(device_t parent, device_t self, void *aux)
     75 {
     76 	struct aha_softc *sc = device_private(self);
     77 	struct aha_probe_data apd;
     78 	struct isapnp_attach_args *ipa = aux;
     79 
     80 	printf("\n");
     81 
     82 	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
     83 		aprint_error_dev(&sc->sc_dev, "error in region allocation\n");
     84 		return;
     85 	}
     86 
     87 	sc->sc_iot = ipa->ipa_iot;
     88 	sc->sc_ioh = ipa->ipa_io[0].h;
     89 	sc->sc_dmat = ipa->ipa_dmat;
     90 
     91 	if (!aha_find(sc->sc_iot, sc->sc_ioh, &apd)) {
     92 		aprint_error_dev(&sc->sc_dev, "aha_find failed\n");
     93 		return;
     94 	}
     95 
     96 	if (ipa->ipa_ndrq == 0) {
     97 		if (apd.sc_drq != -1) {
     98 			printf("%s: no PnP drq, but card has one\n",
     99 			    device_xname(&sc->sc_dev));
    100 			return;
    101 		}
    102 	} else if (apd.sc_drq != ipa->ipa_drq[0].num) {
    103 		printf("%s: card drq # (%d) != PnP # (%d)\n",
    104 		    device_xname(&sc->sc_dev), apd.sc_drq, ipa->ipa_drq[0].num);
    105 		return;
    106 	} else {
    107 		int error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num);
    108 		if (error) {
    109 			aprint_error_dev(&sc->sc_dev, "unable to cascade DRQ, error = %d\n",
    110 			    error);
    111 			return;
    112 		}
    113 	}
    114 
    115 	if (apd.sc_irq != ipa->ipa_irq[0].num) {
    116 		printf("%s: card irq # (%d) != PnP # (%d)\n",
    117 		    device_xname(&sc->sc_dev), apd.sc_irq, ipa->ipa_irq[0].num);
    118 		return;
    119 	}
    120 
    121 
    122 	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
    123 	    ipa->ipa_irq[0].type, IPL_BIO, aha_intr, sc);
    124 
    125 	if (sc->sc_ih == NULL) {
    126 		aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt\n");
    127 		return;
    128 	}
    129 
    130 	aha_attach(sc, &apd);
    131 }
    132