sys/dev/pci/iha_pci.c

   1 /*      $NetBSD: iha_pci.c,v 1.15 2008/04/12 08:21:19 tsutsui Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2001 Izumi Tsutsui.  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  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 /*-
  28  * Device driver for the INI-9XXXU/UW or INIC-940/950  PCI SCSI Controller.
  29  *
  30  *  Written for 386bsd and FreeBSD by
  31  *      Winston Hung            <winstonh@initio.com>
  32  *
  33  * Copyright (c) 1997-1999 Initio Corp.
  34  * Copyright (c) 2000 Ken Westerback
  35  * All rights reserved.
  36  *
  37  * Redistribution and use in source and binary forms, with or without
  38  * modification, are permitted provided that the following conditions
  39  * are met:
  40  * 1. Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer,
  42  *    without modification, immediately at the beginning of the file.
  43  * 2. The name of the author may not be used to endorse or promote products
  44  *    derived from this software without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  47  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  48  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  49  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
  50  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  51  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  52  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  54  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  55  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  56  * THE POSSIBILITY OF SUCH DAMAGE.
  57  */
  58
  59 /*
  60  * Ported to NetBSD by Izumi Tsutsui <tsutsui@NetBSD.org> from OpenBSD:
  61  * $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $
  62  */
  63
  64 #include <sys/cdefs.h>
  65 __KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.15 2008/04/12 08:21:19 tsutsui Exp $");
  66
  67 #include <sys/param.h>
  68 #include <sys/systm.h>
  69 #include <sys/device.h>
  70
  71 #include <uvm/uvm_extern.h>
  72
  73 #include <dev/pci/pcidevs.h>
  74 #include <dev/pci/pcivar.h>
  75
  76 #include <dev/scsipi/scsipi_all.h>
  77 #include <dev/scsipi/scsi_all.h>
  78 #include <dev/scsipi/scsiconf.h>
  79
  80 #include <dev/ic/ihavar.h>
  81
  82 static int  iha_pci_match(device_t, cfdata_t, void *);
  83 static void iha_pci_attach(device_t, device_t, void *);
  84
  85 CFATTACH_DECL_NEW(iha_pci, sizeof(struct iha_softc),
  86     iha_pci_match, iha_pci_attach, NULL, NULL);
  87
  88 static int
  89 iha_pci_match(device_t parent, cfdata_t cf, void *aux)
  90 {
  91         struct pci_attach_args *pa = aux;
  92
  93         if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO)
  94                 return 0;
  95
  96         switch (PCI_PRODUCT(pa->pa_id)) {
  97         case PCI_PRODUCT_INITIO_I940:
  98         case PCI_PRODUCT_INITIO_I950:
  99                 return 1;
 100         }
 101
 102         return 0;
 103 }
 104
 105 static void
 106 iha_pci_attach(device_t parent, device_t self, void *aux)
 107 {
 108         struct iha_softc *sc = device_private(self);
 109         struct pci_attach_args *pa = aux;
 110         bus_space_tag_t iot;
 111         bus_space_handle_t ioh;
 112         pci_intr_handle_t ih;
 113         const char *intrstr;
 114         pcireg_t command;
 115         int ioh_valid;
 116         char devinfo[256];
 117
 118         sc->sc_dev = self;
 119
 120         pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
 121         aprint_normal(": %s (rev. 0x%02x)\n",
 122             devinfo, PCI_REVISION(pa->pa_class));
 123
 124         command  = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG);
 125         command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE;
 126
 127         pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
 128
 129         /*
 130          * XXX - Tried memory mapping (using code from adw and ahc)
 131          *       rather that IO mapping, but it didn't work at all..
 132          */
 133         ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
 134             &iot, &ioh, NULL, NULL);
 135
 136         if (ioh_valid != 0) {
 137                 aprint_error_dev(self, "unable to map registers\n");
 138                 return;
 139         }
 140
 141         sc->sc_iot  = iot;
 142         sc->sc_ioh  = ioh;
 143         sc->sc_dmat = pa->pa_dmat;
 144
 145         if (pci_intr_map(pa, &ih)) {
 146                 aprint_error_dev(self, "couldn't map interrupt\n");
 147                 return;
 148         }
 149         intrstr = pci_intr_string(pa->pa_pc, ih);
 150
 151         sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, iha_intr, sc);
 152
 153         if (sc->sc_ih == NULL) {
 154                 aprint_error_dev(self, "couldn't establish interrupt");
 155                 if (intrstr != NULL)
 156                         aprint_error(" at %s", intrstr);
 157                 aprint_error("\n");
 158                 return;
 159         }
 160         aprint_normal_dev(self, "interrupting at %s\n", intrstr);
 161
 162         iha_attach(sc);
 163 }