if_hme_sbus.c

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    1 /*-
    2  * Copyright (c) 1999 The NetBSD Foundation, Inc.
    3  * All rights reserved.
    4  *
    5  * This code is derived from software contributed to The NetBSD Foundation
    6  * by Paul Kranenburg.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *        This product includes software developed by the NetBSD
   19  *        Foundation, Inc. and its contributors.
   20  * 4. Neither the name of The NetBSD Foundation nor the names of its
   21  *    contributors may be used to endorse or promote products derived
   22  *    from this software without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   25  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   27  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   34  * POSSIBILITY OF SUCH DAMAGE.
   35  *
   36  *      from: NetBSD: if_hme_sbus.c,v 1.9 2001/11/13 06:58:17 lukem Exp
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __FBSDID("$FreeBSD: releng/5.2/sys/dev/hme/if_hme_sbus.c 119696 2003-09-02 20:24:42Z marcel $");
   41 
   42 /*
   43  * SBus front-end device driver for the HME ethernet device.
   44  */
   45 
   46 #include <sys/param.h>
   47 #include <sys/systm.h>
   48 #include <sys/bus.h>
   49 #include <sys/kernel.h>
   50 #include <sys/resource.h>
   51 #include <sys/socket.h>
   52 
   53 #include <machine/bus.h>
   54 #include <dev/ofw/openfirm.h>
   55 #include <machine/ofw_machdep.h>
   56 #include <machine/resource.h>
   57 
   58 #include <sys/rman.h>
   59 
   60 #include <dev/ofw/openfirm.h>
   61 
   62 #include <net/ethernet.h>
   63 #include <net/if.h>
   64 #include <net/if_arp.h>
   65 #include <net/if_dl.h>
   66 #include <net/if_media.h>
   67 
   68 #include <dev/mii/mii.h>
   69 #include <dev/mii/miivar.h>
   70 
   71 #include <sparc64/sbus/sbusvar.h>
   72 
   73 #include <dev/hme/if_hmereg.h>
   74 #include <dev/hme/if_hmevar.h>
   75 
   76 #include "miibus_if.h"
   77 
   78 struct hme_sbus_softc {
   79         struct  hme_softc       hsc_hme;        /* HME device */
   80         struct  resource        *hsc_seb_res;
   81         int                     hsc_seb_rid;
   82         struct  resource        *hsc_etx_res;
   83         int                     hsc_etx_rid;
   84         struct  resource        *hsc_erx_res;
   85         int                     hsc_erx_rid;
   86         struct  resource        *hsc_mac_res;
   87         int                     hsc_mac_rid;
   88         struct  resource        *hsc_mif_res;
   89         int                     hsc_mif_rid;
   90         struct  resource        *hsc_ires;
   91         int                     hsc_irid;
   92         void                    *hsc_ih;
   93 };
   94 
   95 static int hme_sbus_probe(device_t);
   96 static int hme_sbus_attach(device_t);
   97 static int hme_sbus_detach(device_t);
   98 static int hme_sbus_suspend(device_t);
   99 static int hme_sbus_resume(device_t);
  100 
  101 static device_method_t hme_sbus_methods[] = {
  102         /* Device interface */
  103         DEVMETHOD(device_probe,         hme_sbus_probe),
  104         DEVMETHOD(device_attach,        hme_sbus_attach),
  105         DEVMETHOD(device_detach,        hme_sbus_detach),
  106         DEVMETHOD(device_suspend,       hme_sbus_suspend),
  107         DEVMETHOD(device_resume,        hme_sbus_resume),
  108         /* Can just use the suspend method here. */
  109         DEVMETHOD(device_shutdown,      hme_sbus_suspend),
  110 
  111         /* bus interface */
  112         DEVMETHOD(bus_print_child,      bus_generic_print_child),
  113         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
  114 
  115         /* MII interface */
  116         DEVMETHOD(miibus_readreg,       hme_mii_readreg),
  117         DEVMETHOD(miibus_writereg,      hme_mii_writereg),
  118         DEVMETHOD(miibus_statchg,       hme_mii_statchg),
  119 
  120         { 0, 0 }
  121 };
  122 
  123 static driver_t hme_sbus_driver = {
  124         "hme",
  125         hme_sbus_methods,
  126         sizeof(struct hme_sbus_softc)
  127 };
  128 
  129 DRIVER_MODULE(hme, sbus, hme_sbus_driver, hme_devclass, 0, 0);
  130 MODULE_DEPEND(hme, ether, 1, 1, 1);
  131 
  132 static int
  133 hme_sbus_probe(device_t dev)
  134 {
  135         char *name;
  136 
  137         name = sbus_get_name(dev);
  138         if (strcmp(name, "SUNW,qfe") == 0 ||
  139             strcmp(name, "SUNW,hme") == 0) {
  140                 device_set_desc(dev, "Sun HME 10/100 Ethernet");
  141                 return (0);
  142         }
  143         return (ENXIO);
  144 }
  145 
  146 static int
  147 hme_sbus_attach(device_t dev)
  148 {
  149         struct hme_sbus_softc *hsc = device_get_softc(dev);
  150         struct hme_softc *sc = &hsc->hsc_hme;
  151         u_int32_t burst;
  152         u_long start, count;
  153         int error;
  154 
  155         /*
  156          * Map five register banks:
  157          *
  158          *      bank 0: HME SEB registers
  159          *      bank 1: HME ETX registers
  160          *      bank 2: HME ERX registers
  161          *      bank 3: HME MAC registers
  162          *      bank 4: HME MIF registers
  163          *
  164          */
  165         sc->sc_sebo = sc->sc_etxo = sc->sc_erxo = sc->sc_maco = sc->sc_mifo = 0;
  166         hsc->hsc_seb_rid = 0;
  167         hsc->hsc_seb_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
  168             &hsc->hsc_seb_rid, 0, ~0, 1, RF_ACTIVE);
  169         if (hsc->hsc_seb_res == NULL) {
  170                 device_printf(dev, "cannot map SEB registers\n");
  171                 return (ENXIO);
  172         }
  173         sc->sc_sebt = rman_get_bustag(hsc->hsc_seb_res);
  174         sc->sc_sebh = rman_get_bushandle(hsc->hsc_seb_res);
  175 
  176         hsc->hsc_etx_rid = 1;
  177         hsc->hsc_etx_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
  178             &hsc->hsc_etx_rid, 0, ~0, 1, RF_ACTIVE);
  179         if (hsc->hsc_etx_res == NULL) {
  180                 device_printf(dev, "cannot map ETX registers\n");
  181                 goto fail_seb_res;
  182         }
  183         sc->sc_etxt = rman_get_bustag(hsc->hsc_etx_res);
  184         sc->sc_etxh = rman_get_bushandle(hsc->hsc_etx_res);
  185 
  186         hsc->hsc_erx_rid = 2;
  187         hsc->hsc_erx_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
  188             &hsc->hsc_erx_rid, 0, ~0, 1, RF_ACTIVE);
  189         if (hsc->hsc_erx_res == NULL) {
  190                 device_printf(dev, "cannot map ERX registers\n");
  191                 goto fail_etx_res;
  192         }
  193         sc->sc_erxt = rman_get_bustag(hsc->hsc_erx_res);
  194         sc->sc_erxh = rman_get_bushandle(hsc->hsc_erx_res);
  195 
  196         hsc->hsc_mac_rid = 3;
  197         hsc->hsc_mac_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
  198             &hsc->hsc_mac_rid, 0, ~0, 1, RF_ACTIVE);
  199         if (hsc->hsc_mac_res == NULL) {
  200                 device_printf(dev, "cannot map MAC registers\n");
  201                 goto fail_erx_res;
  202         }
  203         sc->sc_mact = rman_get_bustag(hsc->hsc_mac_res);
  204         sc->sc_mach = rman_get_bushandle(hsc->hsc_mac_res);
  205 
  206         /*
  207          * At least on some HMEs, the MIF registers seem to be inside the MAC
  208          * range, so map try to kluge around it.
  209          */
  210         hsc->hsc_mif_rid = 4;
  211         hsc->hsc_mif_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
  212             &hsc->hsc_mif_rid, 0, ~0, 1, RF_ACTIVE);
  213         if (hsc->hsc_mif_res == NULL) {
  214                 if (bus_get_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
  215                     &start, &count) != 0) {
  216                         device_printf(dev, "cannot get MIF registers\n");
  217                         goto fail_mac_res;
  218                 }
  219                 if (start < rman_get_start(hsc->hsc_mac_res) ||
  220                     start + count - 1 > rman_get_end(hsc->hsc_mac_res)) {
  221                         device_printf(dev, "cannot move MIF registers to MAC "
  222                             "bank\n");
  223                         goto fail_mac_res;
  224                 }
  225                 sc->sc_mift = sc->sc_mact;
  226                 sc->sc_mifh = sc->sc_mach;
  227                 sc->sc_mifo = sc->sc_maco + start -
  228                     rman_get_start(hsc->hsc_mac_res);
  229         } else {
  230                 sc->sc_mift = rman_get_bustag(hsc->hsc_mif_res);
  231                 sc->sc_mifh = rman_get_bushandle(hsc->hsc_mif_res);
  232         }
  233 
  234         hsc->hsc_irid = 0;
  235         hsc->hsc_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &hsc->hsc_irid, 0,
  236             ~0, 1, RF_SHAREABLE | RF_ACTIVE);
  237         if (hsc->hsc_ires == NULL) {
  238                 device_printf(dev, "could not allocate interrupt\n");
  239                 error = ENXIO;
  240                 goto fail_mif_res;
  241         }
  242 
  243 
  244         OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr);
  245 
  246         burst = sbus_get_burstsz(dev);
  247         /* Translate into plain numerical format */
  248         sc->sc_burst =  (burst & SBUS_BURST_32) ? 32 :
  249             (burst & SBUS_BURST_16) ? 16 : 0;
  250 
  251         sc->sc_pci = 0; /* XXX: should all be done in bus_dma. */
  252         sc->sc_dev = dev;
  253 
  254         if ((error = hme_config(sc)) != 0) {
  255                 device_printf(dev, "could not be configured\n");
  256                 goto fail_ires;
  257         }
  258 
  259 
  260         if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET, hme_intr,
  261              sc, &hsc->hsc_ih)) != 0) {
  262                 device_printf(dev, "couldn't establish interrupt\n");
  263                 hme_detach(sc);
  264                 goto fail_ires;
  265         }
  266         return (0);
  267 
  268 fail_ires:
  269         bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires);
  270 fail_mif_res:
  271         if (hsc->hsc_mif_res != NULL) {
  272                 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
  273                     hsc->hsc_mif_res);
  274         }
  275 fail_mac_res:
  276         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid,
  277             hsc->hsc_mac_res);
  278 fail_erx_res:
  279         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid,
  280             hsc->hsc_erx_res);
  281 fail_etx_res:
  282         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid,
  283             hsc->hsc_etx_res);
  284 fail_seb_res:
  285         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid,
  286             hsc->hsc_seb_res);
  287         return (ENXIO);
  288 }
  289 
  290 static int
  291 hme_sbus_detach(device_t dev)
  292 {
  293         struct hme_sbus_softc *hsc = device_get_softc(dev);
  294         struct hme_softc *sc = &hsc->hsc_hme;
  295 
  296         hme_detach(sc);
  297 
  298         bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih);
  299         if (hsc->hsc_mif_res != NULL) {
  300                 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
  301                     hsc->hsc_mif_res);
  302         }
  303         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid,
  304             hsc->hsc_mac_res);
  305         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid,
  306             hsc->hsc_erx_res);
  307         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid,
  308             hsc->hsc_etx_res);
  309         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid,
  310             hsc->hsc_seb_res);
  311         return (0);
  312 }
  313 
  314 static int
  315 hme_sbus_suspend(device_t dev)
  316 {
  317         struct hme_sbus_softc *hsc = device_get_softc(dev);
  318         struct hme_softc *sc = &hsc->hsc_hme;
  319 
  320         hme_suspend(sc);
  321         return (0);
  322 }
  323 
  324 static int
  325 hme_sbus_resume(device_t dev)
  326 {
  327         struct hme_sbus_softc *hsc = device_get_softc(dev);
  328         struct hme_softc *sc = &hsc->hsc_hme;
  329 
  330         hme_resume(sc);
  331         return (0);
  332 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/hme/if_hme_sbus.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/hme/if_hme_sbus.c
