FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/iha_pci.c

     /*      $NetBSD: iha_pci.c,v 1.7 2002/11/14 17:07:43 tsutsui Exp $ */
     
     /*-
      * Device driver for the INI-9XXXU/UW or INIC-940/950  PCI SCSI Controller.
      *
      *  Written for 386bsd and FreeBSD by
      *      Winston Hung            <winstonh@initio.com>
      *
      * Copyright (c) 1997-1999 Initio Corp.
     * Copyright (c) 2000 Ken Westerback
     * Copyright (c) 2001 Izumi Tsutsui
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer,
     *    without modification, immediately at the beginning of the file.
     * 2. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
     * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * Ported to NetBSD by Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> from OpenBSD:
     * $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.7 2002/11/14 17:07:43 tsutsui Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    
    #include <uvm/uvm_extern.h>
    
    #include <dev/pci/pcidevs.h>
    #include <dev/pci/pcivar.h>
    
    #include <dev/scsipi/scsipi_all.h>
    #include <dev/scsipi/scsi_all.h>
    #include <dev/scsipi/scsiconf.h>
    
    #include <dev/ic/ihavar.h>
    
    static int  iha_pci_probe(struct device *, struct cfdata *, void *);
    static void iha_pci_attach(struct device *, struct device *, void *);
    
    CFATTACH_DECL(iha_pci, sizeof(struct iha_softc),
        iha_pci_probe, iha_pci_attach, NULL, NULL);
    
    static int
    iha_pci_probe(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
    {
            struct pci_attach_args *pa = aux;
    
            if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO)
                    return (0);
    
            switch (PCI_PRODUCT(pa->pa_id)) {
            case PCI_PRODUCT_INITIO_I940:
            case PCI_PRODUCT_INITIO_I950:
                    return (1);
            }
    
            return (0);
    }
    
    static void
    iha_pci_attach(parent, self, aux)
            struct device *parent;
            struct device *self;
            void *aux;
    {
            struct pci_attach_args *pa = aux;
            bus_space_tag_t iot;
            bus_space_handle_t ioh;
            pci_intr_handle_t ih;
            struct iha_softc *sc = (struct iha_softc *)self;
            const char *intrstr;
            pcireg_t command;
            int ioh_valid;
            char devinfo[256];
   
           pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
           printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
   
           command  = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG);
           command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE;
   
           pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
   
           /*
            * XXX - Tried memory mapping (using code from adw and ahc)
            *       rather that IO mapping, but it didn't work at all..
            */
           ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
               &iot, &ioh, NULL, NULL);
   
           if (ioh_valid != 0) {
                   printf("%s: unable to map registers\n", sc->sc_dev.dv_xname);
                   return;
           }
   
           sc->sc_iot  = iot;
           sc->sc_ioh  = ioh;
           sc->sc_dmat = pa->pa_dmat;
   
           if (pci_intr_map(pa, &ih)) {
                   printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
                   return;
           }
           intrstr = pci_intr_string(pa->pa_pc, ih);
   
           sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, iha_intr, sc);
   
           if (sc->sc_ih == NULL) {
                   printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
                   if (intrstr != NULL)
                           printf(" at %s", intrstr);
                   printf("\n");
                   return;
           }
           printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
   
           iha_attach(sc);
   }

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