if_sbni_pci.c

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    1 /*-
    2  * Copyright (c) 1997-2001 Granch, Ltd. All rights reserved.
    3  * Author: Denis I.Timofeev <timofeev@granch.ru>
    4  *
    5  * Redistributon and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice unmodified, this list of conditions, and the following
   10  *    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 AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD$");
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 #include <sys/socket.h>
   34 #include <sys/bus.h>
   35 #include <sys/kernel.h>
   36 #include <sys/module.h>
   37 #include <machine/bus.h>
   38 #include <machine/resource.h>
   39 #include <sys/rman.h>
   40 #include <sys/malloc.h>
   41 
   42 #include <net/if.h>
   43 #include <net/ethernet.h>
   44 #include <net/if_arp.h>
   45 
   46 #include <dev/pci/pcivar.h>
   47 #include <dev/pci/pcireg.h>
   48 
   49 #include <dev/sbni/if_sbnireg.h>
   50 #include <dev/sbni/if_sbnivar.h>
   51 
   52 static int      sbni_pci_probe(device_t);
   53 static int      sbni_pci_attach(device_t);
   54 
   55 static device_method_t sbni_pci_methods[] = {
   56         /* Device interface */
   57         DEVMETHOD(device_probe, sbni_pci_probe),
   58         DEVMETHOD(device_attach, sbni_pci_attach),
   59         { 0, 0 }
   60 };
   61 
   62 static driver_t sbni_pci_driver = {
   63         "sbni",
   64         sbni_pci_methods,
   65         sizeof(struct sbni_softc)
   66 };
   67 
   68 static devclass_t sbni_pci_devclass;
   69 
   70 DRIVER_MODULE(sbni, pci, sbni_pci_driver, sbni_pci_devclass, 0, 0);
   71 MODULE_DEPEND(sbni, pci, 1, 1, 1);
   72 
   73 static int
   74 sbni_pci_probe(device_t dev)
   75 {
   76         struct sbni_softc  *sc;
   77         u_int32_t  ports;
   78    
   79         ports = SBNI_PORTS;
   80         if (pci_get_vendor(dev) != SBNI_PCI_VENDOR ||
   81             pci_get_device(dev) != SBNI_PCI_DEVICE)
   82                 return (ENXIO);
   83 
   84         sc = device_get_softc(dev);
   85         bzero(sc, sizeof(struct sbni_softc));
   86         if (pci_get_subdevice(dev) == 2) {
   87                 ports <<= 1;
   88                 sc->slave_sc = malloc(sizeof(struct sbni_softc),
   89                                       M_DEVBUF, M_NOWAIT | M_ZERO);
   90                 if (!sc->slave_sc)
   91                         return (ENOMEM);
   92                 device_set_desc(dev, "Granch SBNI12/PCI Dual adapter");
   93         } else
   94                 device_set_desc(dev, "Granch SBNI12/PCI adapter");
   95 
   96         sc->io_rid = PCIR_BAR(0);
   97         sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->io_rid,
   98                                         0ul, ~0ul, ports, RF_ACTIVE);
   99         if (!sc->io_res) {
  100                 printf("sbni: cannot allocate io ports!\n");
  101                 if (sc->slave_sc)
  102                         free(sc->slave_sc, M_DEVBUF);
  103                 return (ENOENT);
  104         }
  105 
  106         if (sc->slave_sc) {
  107                 sc->slave_sc->io_res = sc->io_res;
  108                 sc->slave_sc->io_off = 4;
  109         }
  110         if (sbni_probe(sc) != 0) {
  111                 bus_release_resource(dev, SYS_RES_IOPORT,
  112                                      sc->io_rid, sc->io_res);
  113                 if (sc->slave_sc)
  114                         free(sc->slave_sc, M_DEVBUF);
  115                 return (ENXIO);
  116         }
  117 
  118         device_quiet(dev);
  119         return (0);
  120 }
  121 
  122 static int
  123 sbni_pci_attach(device_t dev)
  124 {
  125         struct sbni_softc *sc;
  126         struct sbni_flags flags;
  127         int error;
  128 
  129         sc = device_get_softc(dev);
  130 
  131         printf("sbni%d: <Granch SBNI12/PCI%sadapter> port 0x%lx",
  132                next_sbni_unit, sc->slave_sc ? " Dual " : " ",
  133                rman_get_start(sc->io_res));
  134         sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
  135                                              RF_SHAREABLE);
  136 
  137         if (sc->irq_res) {
  138                 printf(" irq %ld\n", rman_get_start(sc->irq_res));
  139                 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
  140                                        NULL, sbni_intr, sc, &sc->irq_handle);
  141                 if (error) {
  142                         printf("sbni%d: bus_setup_intr\n", next_sbni_unit);
  143                         goto attach_failed;
  144                 }
  145         } else {
  146                 printf("\nsbni%d: cannot claim irq!\n", next_sbni_unit);
  147                 error = ENOENT;
  148                 goto attach_failed;
  149         }
  150 
  151         *(u_int32_t*)&flags = 0;
  152 
  153         sbni_attach(sc, next_sbni_unit++, flags);
  154         if (sc->slave_sc)
  155                 sbni_attach(sc->slave_sc, next_sbni_unit++, flags);
  156         return (0);
  157 
  158 attach_failed:
  159         bus_release_resource(dev, SYS_RES_IOPORT, sc->io_rid, sc->io_res);
  160         if (sc->irq_res) {
  161                 bus_release_resource(
  162                     dev, SYS_RES_IRQ, sc->irq_rid, sc->irq_res);
  163         }
  164         if (sc->slave_sc)
  165                 free(sc->slave_sc, M_DEVBUF);
  166         return (error);
  167 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/sbni/if_sbni_pci.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/sbni/if_sbni_pci.c