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

     /*      $NetBSD: bha_pci.c,v 1.25 2003/01/31 00:07:40 thorpej Exp $     */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Charles M. Hannum.
      *
     * 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.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``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 FOUNDATION OR CONTRIBUTORS
     * 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 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.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: bha_pci.c,v 1.25 2003/01/31 00:07:40 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/scsipi/scsipi_all.h>
    #include <dev/scsipi/scsiconf.h>
    
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcidevs.h>
    
    #include <dev/ic/bhareg.h>
    #include <dev/ic/bhavar.h>
    
    #define PCI_CBIO        0x10
    
    int     bha_pci_match __P((struct device *, struct cfdata *, void *));
    void    bha_pci_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(bha_pci, sizeof(struct bha_softc),
        bha_pci_match, bha_pci_attach, NULL, NULL);
    
    /*
     * Check the slots looking for a board we recognise
     * If we find one, note it's address (slot) and call
     * the actual probe routine to check it out.
     */
    int
    bha_pci_match(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
    {
            struct pci_attach_args *pa = aux;
            bus_space_tag_t iot;
            bus_space_handle_t ioh;
            bus_size_t iosize;
            int rv;
    
            if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC)
                    return (0);
    
            if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC &&
                PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
                    return (0);
    
            if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
                NULL, &iosize))
                    return (0);
    
            rv = bha_find(iot, ioh);
    
            bus_space_unmap(iot, ioh, iosize);
    
            return (rv);
    }
   
   /*
    * Attach all the sub-devices we can find
    */
   void
   bha_pci_attach(parent, self, aux)
           struct device *parent, *self;
           void *aux;
   {
           struct pci_attach_args *pa = aux;
           struct bha_softc *sc = (void *)self;
           bus_space_tag_t iot;
           bus_space_handle_t ioh;
           pci_chipset_tag_t pc = pa->pa_pc;
           pci_intr_handle_t ih;
           pcireg_t csr;
           const char *model, *intrstr;
   
           aprint_naive(": SCSI controller\n");
   
           if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC)
                   model = "BusLogic 9xxC SCSI";
           else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
                   model = "BusLogic 9xxC SCSI";
           else
                   model = "unknown model!";
           aprint_normal(": %s\n", model);
   
           if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
               NULL, NULL)) {
                   aprint_error("%s: unable to map device registers\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
   
           sc->sc_iot = iot;
           sc->sc_ioh = ioh;
           sc->sc_dmat = pa->pa_dmat;
           if (!bha_find(iot, ioh))
                   panic("bha_pci_attach: bha_find failed");
   
           sc->sc_dmaflags = 0;
   
           csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
           pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
               csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE);
   
           if (pci_intr_map(pa, &ih)) {
                   aprint_error("%s: couldn't map interrupt\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
           intrstr = pci_intr_string(pc, ih);
           sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, bha_intr, sc);
           if (sc->sc_ih == NULL) {
                   aprint_error("%s: couldn't establish interrupt",
                       sc->sc_dev.dv_xname);
                   if (intrstr != NULL)
                           aprint_normal(" at %s", intrstr);
                   aprint_normal("\n");
                   return;
           }
           aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
   
           bha_attach(sc);
   
           bha_disable_isacompat(sc);
   }

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