sys/dev/isapnp/aha_isapnp.c

   1 /*      $NetBSD: aha_isapnp.c,v 1.18 2009/09/21 08:12:47 tsutsui 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 1.18 2009/09/21 08:12:47 tsutsui 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 static int      aha_isapnp_probe(device_t, cfdata_t, void *);
  57 static void     aha_isapnp_attach(device_t, device_t, void *);
  58
  59 CFATTACH_DECL_NEW(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         sc->sc_dev = self;
  81
  82         printf("\n");
  83
  84         if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
  85                 aprint_error_dev(self, "error in region allocation\n");
  86                 return;
  87         }
  88
  89         sc->sc_iot = ipa->ipa_iot;
  90         sc->sc_ioh = ipa->ipa_io[0].h;
  91         sc->sc_dmat = ipa->ipa_dmat;
  92
  93         if (!aha_find(sc->sc_iot, sc->sc_ioh, &apd)) {
  94                 aprint_error_dev(self, "aha_find failed\n");
  95                 return;
  96         }
  97
  98         if (ipa->ipa_ndrq == 0) {
  99                 if (apd.sc_drq != -1) {
 100                         printf("%s: no PnP drq, but card has one\n",
 101                             device_xname(self));
 102                         return;
 103                 }
 104         } else if (apd.sc_drq != ipa->ipa_drq[0].num) {
 105                 printf("%s: card drq # (%d) != PnP # (%d)\n",
 106                     device_xname(self), apd.sc_drq, ipa->ipa_drq[0].num);
 107                 return;
 108         } else {
 109                 int error = isa_dmacascade(ipa->ipa_ic, ipa->ipa_drq[0].num);
 110                 if (error) {
 111                         aprint_error_dev(self,
 112                             "unable to cascade DRQ, error = %d\n", error);
 113                         return;
 114                 }
 115         }
 116
 117         if (apd.sc_irq != ipa->ipa_irq[0].num) {
 118                 printf("%s: card irq # (%d) != PnP # (%d)\n",
 119                     device_xname(self), apd.sc_irq, ipa->ipa_irq[0].num);
 120                 return;
 121         }
 122
 123
 124         sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
 125             ipa->ipa_irq[0].type, IPL_BIO, aha_intr, sc);
 126
 127         if (sc->sc_ih == NULL) {
 128                 aprint_error_dev(self, "couldn't establish interrupt\n");
 129                 return;
 130         }
 131
 132         aha_attach(sc, &apd);
 133 }