if_gem_pci.c

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    1 /*      $NetBSD: if_gem_pci.c,v 1.15 2004/03/17 13:54:09 martin Exp $ */
    2 
    3 /*
    4  * 
    5  * Copyright (C) 2001 Eduardo Horvath.
    6  * All rights reserved.
    7  *
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *  
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR  ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR  BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  */
   31 
   32 /*
   33  * PCI bindings for Sun GEM ethernet controllers.
   34  */
   35 
   36 #include <sys/cdefs.h>
   37 __KERNEL_RCSID(0, "$NetBSD: if_gem_pci.c,v 1.15 2004/03/17 13:54:09 martin Exp $");
   38 
   39 #include <sys/param.h>
   40 #include <sys/systm.h> 
   41 #include <sys/malloc.h>
   42 #include <sys/kernel.h>
   43 #include <sys/socket.h>
   44 #include <sys/errno.h>
   45 #include <sys/device.h>
   46 
   47 #include <machine/endian.h>
   48 
   49 #include <uvm/uvm_extern.h>
   50  
   51 #include <net/if.h>
   52 #include <net/if_dl.h>
   53 #include <net/if_media.h>
   54 #include <net/if_ether.h>
   55 
   56 #if NBPFILTER > 0 
   57 #include <net/bpf.h>
   58 #endif 
   59 
   60 #include <machine/bus.h>
   61 #include <machine/intr.h>
   62 
   63 #include <dev/mii/mii.h>
   64 #include <dev/mii/miivar.h>
   65 #include <dev/mii/mii_bitbang.h>
   66 
   67 #include <dev/ic/gemreg.h>
   68 #include <dev/ic/gemvar.h>
   69 
   70 #include <dev/pci/pcivar.h>
   71 #include <dev/pci/pcireg.h>
   72 #include <dev/pci/pcidevs.h>
   73 
   74 /* XXX Should use Properties when that's fleshed out. */
   75 #ifdef macppc
   76 #include <dev/ofw/openfirm.h>
   77 #endif /* macppc */
   78 #ifdef __sparc__
   79 #include <machine/promlib.h>
   80 #endif
   81 
   82 struct gem_pci_softc {
   83         struct  gem_softc       gsc_gem;        /* GEM device */
   84         void                    *gsc_ih;
   85 };
   86 
   87 int     gem_match_pci __P((struct device *, struct cfdata *, void *));
   88 void    gem_attach_pci __P((struct device *, struct device *, void *));
   89 
   90 CFATTACH_DECL(gem_pci, sizeof(struct gem_pci_softc),
   91     gem_match_pci, gem_attach_pci, NULL, NULL);
   92 
   93 /*
   94  * Attach routines need to be split out to different bus-specific files.
   95  */
   96 
   97 int
   98 gem_match_pci(parent, cf, aux)
   99         struct device *parent;
  100         struct cfdata *cf;
  101         void *aux;
  102 {
  103         struct pci_attach_args *pa = aux;
  104 
  105         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 
  106             (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK ||
  107              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK))
  108                 return (1);
  109 
  110         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 
  111             (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC ||
  112              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 ||
  113              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3))
  114                 return (1);
  115 
  116 
  117         return (0);
  118 }
  119 
  120 void
  121 gem_attach_pci(parent, self, aux)
  122         struct device *parent, *self;
  123         void *aux;
  124 {
  125         struct pci_attach_args *pa = aux;
  126         struct gem_pci_softc *gsc = (void *)self;
  127         struct gem_softc *sc = &gsc->gsc_gem;
  128         pci_intr_handle_t ih;
  129         const char *intrstr;
  130         char devinfo[256];
  131         uint8_t enaddr[ETHER_ADDR_LEN];
  132 
  133         aprint_naive(": Ethernet controller\n");
  134 
  135         pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
  136         aprint_normal(": %s (rev. 0x%02x)\n", devinfo,
  137             PCI_REVISION(pa->pa_class));
  138 
  139         sc->sc_dmatag = pa->pa_dmat;
  140 
  141         sc->sc_pci = 1;         /* XXX */
  142 
  143         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 
  144             (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK ||
  145              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK))
  146                 sc->sc_variant = GEM_SUN_GEM;
  147         else if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 
  148             (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC ||
  149              PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2))
  150                 sc->sc_variant = GEM_APPLE_GMAC;
  151 
  152 #define PCI_GEM_BASEADDR        (PCI_MAPREG_START + 0x00)
  153 
  154         /* XXX Need to check for a 64-bit mem BAR? */
  155         if (pci_mapreg_map(pa, PCI_GEM_BASEADDR,
  156             PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
  157             &sc->sc_bustag, &sc->sc_h, NULL, NULL) != 0)
  158         {
  159                 aprint_error("%s: unable to map device registers\n",
  160                     sc->sc_dev.dv_xname);
  161                 return;
  162         }
  163 
  164         /*
  165          * XXX This should be done with properties, when those are
  166          * XXX fleshed out.
  167          */
  168 #ifdef __sparc__
  169         {
  170                 prom_getether(PCITAG_NODE(pa->pa_tag), enaddr);
  171         }
  172 #endif /* __sparc__ */
  173 #ifdef macppc
  174         {
  175                 int node;
  176 
  177                 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag);
  178                 if (node == 0) {
  179                         aprint_error("%s: unable to locate OpenFirmware node\n",
  180                             sc->sc_dev.dv_xname);
  181                         return;
  182                 }
  183 
  184                 OF_getprop(node, "local-mac-address", enaddr, sizeof(enaddr));
  185         }
  186 #endif /* macppc */
  187 
  188         if (pci_intr_map(pa, &ih) != 0) {
  189                 aprint_error("%s: unable to map interrupt\n",
  190                     sc->sc_dev.dv_xname);
  191                 return;
  192         }       
  193         intrstr = pci_intr_string(pa->pa_pc, ih);
  194         gsc->gsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, gem_intr, sc);
  195         if (gsc->gsc_ih == NULL) {
  196                 aprint_error("%s: unable to establish interrupt",
  197                     sc->sc_dev.dv_xname);
  198                 if (intrstr != NULL)
  199                         aprint_normal(" at %s", intrstr);
  200                 aprint_normal("\n");
  201                 return;
  202         }
  203         aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
  204 
  205         /* Finish off the attach. */
  206         gem_attach(sc, enaddr);
  207 }

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

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sys/dev/pci/if_gem_pci.c