Line data    Source code

       1             : /*      $OpenBSD: twe_pci.c,v 1.13 2011/04/03 15:36:03 jasper Exp $     */
       2             : 
       3             : /*
       4             :  * Copyright (c) 2000 Michael Shalayeff
       5             :  * All rights reserved.
       6             :  *
       7             :  * Redistribution and use in source and binary forms, with or without
       8             :  * modification, are permitted provided that the following conditions
       9             :  * are met:
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  * 2. Redistributions in binary form must reproduce the above copyright
      13             :  *    notice, this list of conditions and the following disclaimer in the
      14             :  *    documentation and/or other materials provided with the distribution.
      15             :  *
      16             :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      17             :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      18             :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      19             :  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
      20             :  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      21             :  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
      22             :  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      23             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      24             :  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
      25             :  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
      26             :  * THE POSSIBILITY OF SUCH DAMAGE.
      27             :  */
      28             : 
      29             : #include <sys/param.h>
      30             : #include <sys/systm.h>
      31             : #include <sys/kernel.h>
      32             : #include <sys/malloc.h>
      33             : #include <sys/device.h>
      34             : 
      35             : #include <dev/pci/pcidevs.h>
      36             : #include <dev/pci/pcivar.h>
      37             : 
      38             : #include <machine/bus.h>
      39             : 
      40             : #include <scsi/scsi_all.h>
      41             : #include <scsi/scsi_disk.h>
      42             : #include <scsi/scsiconf.h>
      43             : 
      44             : #include <dev/ic/twereg.h>
      45             : #include <dev/ic/twevar.h>
      46             : 
      47             : #define TWE_BAR 0x10
      48             : 
      49             : int     twe_pci_match(struct device *, void *, void *);
      50             : void    twe_pci_attach(struct device *, struct device *, void *);
      51             : 
      52             : struct cfattach twe_pci_ca = {
      53             :         sizeof(struct twe_softc), twe_pci_match, twe_pci_attach
      54             : };
      55             : 
      56             : const struct pci_matchid twe_pci_devices[] = {
      57             :         { PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE },
      58             :         { PCI_VENDOR_3WARE, PCI_PRODUCT_3WARE_ESCALADE_ASIC }
      59             : };
      60             : 
      61             : int
      62           0 : twe_pci_match(parent, match, aux)
      63             :         struct device *parent;
      64             :         void *match;
      65             :         void *aux;
      66             : {
      67           0 :         return (pci_matchbyid((struct pci_attach_args *)aux, twe_pci_devices,
      68             :             nitems(twe_pci_devices)));
      69             : }
      70             : 
      71             : void
      72           0 : twe_pci_attach(parent, self, aux)
      73             :         struct device *parent, *self;
      74             :         void *aux;
      75             : {
      76           0 :         struct twe_softc *sc = (struct twe_softc *)self;
      77           0 :         struct pci_attach_args *pa = aux;
      78           0 :         pci_intr_handle_t ih;
      79             :         const char *intrstr;
      80           0 :         bus_size_t size;
      81             : 
      82           0 :         if (pci_mapreg_map(pa, TWE_BAR, PCI_MAPREG_TYPE_IO, 0,
      83           0 :             &sc->iot, &sc->ioh, NULL, &size, 0)) {
      84           0 :                 printf(": can't map controller i/o space\n");
      85           0 :                 return;
      86             :         }
      87           0 :         sc->dmat = pa->pa_dmat;
      88             : 
      89           0 :         if (pci_intr_map(pa, &ih)) {
      90           0 :                 printf(": can't map interrupt\n");
      91           0 :                 bus_space_unmap(sc->iot, sc->ioh, size);
      92           0 :                 return;
      93             :         }
      94           0 :         intrstr = pci_intr_string(pa->pa_pc, ih);
      95           0 :         sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, twe_intr, sc,
      96           0 :             sc->sc_dev.dv_xname);
      97           0 :         if (!sc->sc_ih) {
      98           0 :                 printf(": can't establish interrupt");
      99           0 :                 if (intrstr)
     100           0 :                         printf(" at %s", intrstr);
     101           0 :                 printf("\n");
     102           0 :                 bus_space_unmap(sc->iot, sc->ioh, size);
     103           0 :                 return;
     104             :         }
     105             : 
     106           0 :         printf(": %s\n%s", intrstr, sc->sc_dev.dv_xname);
     107             : 
     108           0 :         if (twe_attach(sc)) {
     109           0 :                 pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
     110           0 :                 sc->sc_ih = NULL;
     111           0 :                 bus_space_unmap(sc->iot, sc->ioh, size);
     112           0 :         }
     113           0 : }