if_gem_pci.c

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    1 /*-
    2  * Copyright (C) 2001 Eduardo Horvath.
    3  * All rights reserved.
    4  *
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following 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  ``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  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 NEGLIGENCE 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  *      from: NetBSD: if_gem_pci.c,v 1.7 2001/10/18 15:09:15 thorpej Exp
   28  *
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD: releng/5.4/sys/dev/gem/if_gem_pci.c 141016 2005-01-30 01:00:13Z imp $");
   33 
   34 /*
   35  * PCI bindings for Sun GEM ethernet controllers.
   36  */
   37 
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <sys/bus.h>
   41 #include <sys/malloc.h>
   42 #include <sys/kernel.h>
   43 #include <sys/module.h>
   44 #include <sys/resource.h>
   45 #include <sys/socket.h>
   46 
   47 #include <machine/endian.h>
   48 
   49 #include <net/ethernet.h>
   50 #include <net/if.h>
   51 #include <net/if_arp.h>
   52 #include <net/if_dl.h>
   53 #include <net/if_media.h>
   54 
   55 #include <machine/bus.h>
   56 #include <machine/resource.h>
   57 #include <dev/ofw/openfirm.h>
   58 #include <machine/ofw_machdep.h>
   59 
   60 #include <sys/rman.h>
   61 
   62 #include <dev/mii/mii.h>
   63 #include <dev/mii/miivar.h>
   64 
   65 #include <dev/gem/if_gemreg.h>
   66 #include <dev/gem/if_gemvar.h>
   67 
   68 #include <dev/pci/pcivar.h>
   69 #include <dev/pci/pcireg.h>
   70 
   71 #include "miibus_if.h"
   72 
   73 struct gem_pci_softc {
   74         struct  gem_softc       gsc_gem;        /* GEM device */
   75         struct  resource        *gsc_sres;
   76         int                     gsc_srid;
   77         struct  resource        *gsc_ires;
   78         int                     gsc_irid;
   79         void                    *gsc_ih;
   80 };
   81 
   82 static int      gem_pci_probe(device_t);
   83 static int      gem_pci_attach(device_t);
   84 static int      gem_pci_detach(device_t);
   85 static int      gem_pci_suspend(device_t);
   86 static int      gem_pci_resume(device_t);
   87 
   88 static device_method_t gem_pci_methods[] = {
   89         /* Device interface */
   90         DEVMETHOD(device_probe,         gem_pci_probe),
   91         DEVMETHOD(device_attach,        gem_pci_attach),
   92         DEVMETHOD(device_detach,        gem_pci_detach),
   93         DEVMETHOD(device_suspend,       gem_pci_suspend),
   94         DEVMETHOD(device_resume,        gem_pci_resume),
   95         /* Use the suspend handler here, it is all that is required. */
   96         DEVMETHOD(device_shutdown,      gem_pci_suspend),
   97 
   98         /* bus interface */
   99         DEVMETHOD(bus_print_child,      bus_generic_print_child),
  100         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
  101 
  102         /* MII interface */
  103         DEVMETHOD(miibus_readreg,       gem_mii_readreg),
  104         DEVMETHOD(miibus_writereg,      gem_mii_writereg),
  105         DEVMETHOD(miibus_statchg,       gem_mii_statchg),
  106 
  107         { 0, 0 }
  108 };
  109 
  110 static driver_t gem_pci_driver = {
  111         "gem",
  112         gem_pci_methods,
  113         sizeof(struct gem_pci_softc)
  114 };
  115 
  116 
  117 DRIVER_MODULE(gem, pci, gem_pci_driver, gem_devclass, 0, 0);
  118 MODULE_DEPEND(gem, pci, 1, 1, 1);
  119 MODULE_DEPEND(gem, ether, 1, 1, 1);
  120 
  121 struct gem_pci_dev {
  122         u_int32_t       gpd_devid;
  123         int     gpd_variant;
  124         char    *gpd_desc;
  125 } gem_pci_devlist[] = {
  126         { 0x1101108e, GEM_SUN_GEM,      "Sun ERI 10/100 Ethernet Adaptor" },
  127         { 0x2bad108e, GEM_SUN_GEM,      "Sun GEM Gigabit Ethernet Adaptor" },
  128         { 0x0021106b, GEM_APPLE_GMAC,   "Apple GMAC Ethernet Adaptor" },
  129         { 0x0024106b, GEM_APPLE_GMAC,   "Apple GMAC2 Ethernet Adaptor" },
  130         { 0x0032106b, GEM_APPLE_GMAC,   "Apple GMAC3 Ethernet Adaptor" },
  131         { 0, 0, NULL }
  132 };
  133 
  134 /*
  135  * Attach routines need to be split out to different bus-specific files.
  136  */
  137 static int
  138 gem_pci_probe(dev)
  139         device_t dev;
  140 {
  141         int i;
  142         u_int32_t devid;
  143         struct gem_pci_softc *gsc;
  144 
  145         devid = pci_get_devid(dev);
  146         for (i = 0; gem_pci_devlist[i].gpd_desc != NULL; i++) {
  147                 if (devid == gem_pci_devlist[i].gpd_devid) {
  148                         device_set_desc(dev, gem_pci_devlist[i].gpd_desc);
  149                         gsc = device_get_softc(dev);
  150                         gsc->gsc_gem.sc_variant =
  151                             gem_pci_devlist[i].gpd_variant;
  152                         return (0);
  153                 }
  154         }
  155 
  156         return (ENXIO);
  157 }
  158 
  159 static int
  160 gem_pci_attach(dev)
  161         device_t dev;
  162 {
  163         struct gem_pci_softc *gsc = device_get_softc(dev);
  164         struct gem_softc *sc = &gsc->gsc_gem;
  165 
  166         pci_enable_busmaster(dev);
  167 
  168         /*
  169          * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0,
  170          * although it should be 1. correct that.
  171          */
  172         if (pci_get_intpin(dev) == 0)
  173                 pci_set_intpin(dev, 1);
  174 
  175         sc->sc_dev = dev;
  176         sc->sc_pci = 1;         /* XXX */
  177 
  178         gsc->gsc_srid = PCI_GEM_BASEADDR;
  179         gsc->gsc_sres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
  180             &gsc->gsc_srid, RF_ACTIVE);
  181         if (gsc->gsc_sres == NULL) {
  182                 device_printf(dev, "failed to allocate bus space resource\n");
  183                 return (ENXIO);
  184         }
  185 
  186         gsc->gsc_irid = 0;
  187         gsc->gsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
  188             &gsc->gsc_irid, RF_SHAREABLE | RF_ACTIVE);
  189         if (gsc->gsc_ires == NULL) {
  190                 device_printf(dev, "failed to allocate interrupt resource\n");
  191                 goto fail_sres;
  192         }
  193 
  194         sc->sc_bustag = rman_get_bustag(gsc->gsc_sres);
  195         sc->sc_h = rman_get_bushandle(gsc->gsc_sres);
  196 
  197         /* All platform that this driver is used on must provide this. */
  198         OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr);
  199 
  200         /*
  201          * call the main configure
  202          */
  203         if (gem_attach(sc) != 0) {
  204                 device_printf(dev, "could not be configured\n");
  205                 goto fail_ires;
  206         }
  207 
  208         if (bus_setup_intr(dev, gsc->gsc_ires, INTR_TYPE_NET, gem_intr, sc,
  209             &gsc->gsc_ih) != 0) {
  210                 device_printf(dev, "failed to set up interrupt\n");
  211                 gem_detach(sc);
  212                 goto fail_ires;
  213         }
  214         return (0);
  215 
  216 fail_ires:
  217         bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires);
  218 fail_sres:
  219         bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres);
  220         return (ENXIO);
  221 }
  222 
  223 static int
  224 gem_pci_detach(dev)
  225         device_t dev;
  226 {
  227         struct gem_pci_softc *gsc = device_get_softc(dev);
  228         struct gem_softc *sc = &gsc->gsc_gem;
  229 
  230         gem_detach(sc);
  231 
  232         bus_teardown_intr(dev, gsc->gsc_ires, gsc->gsc_ih);
  233         bus_release_resource(dev, SYS_RES_IRQ, gsc->gsc_irid, gsc->gsc_ires);
  234         bus_release_resource(dev, SYS_RES_MEMORY, gsc->gsc_srid, gsc->gsc_sres);
  235         return (0);
  236 }
  237 
  238 static int
  239 gem_pci_suspend(dev)
  240         device_t dev;
  241 {
  242         struct gem_pci_softc *gsc = device_get_softc(dev);
  243         struct gem_softc *sc = &gsc->gsc_gem;
  244 
  245         gem_suspend(sc);
  246         return (0);
  247 }
  248 
  249 static int
  250 gem_pci_resume(dev)
  251         device_t dev;
  252 {
  253         struct gem_pci_softc *gsc = device_get_softc(dev);
  254         struct gem_softc *sc = &gsc->gsc_gem;
  255 
  256         gem_resume(sc);
  257         return (0);
  258 }

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

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