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 1.19 2004/03/17 17:04:58 pk Exp
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __FBSDID("$FreeBSD: releng/5.3/sys/dev/hme/if_hme_sbus.c 133599 2004-08-12 20:37:02Z marius $");
   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/module.h>
   51 #include <sys/resource.h>
   52 #include <sys/socket.h>
   53 
   54 #include <dev/ofw/ofw_bus.h>
   55 
   56 #include <machine/bus.h>
   57 #include <machine/ofw_machdep.h>
   58 #include <machine/resource.h>
   59 
   60 #include <sys/rman.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         const char *name;
  136 
  137         name = ofw_bus_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 = 0;
  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         hsc->hsc_seb_rid = 0;
  166         hsc->hsc_seb_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
  167             &hsc->hsc_seb_rid, RF_ACTIVE);
  168         if (hsc->hsc_seb_res == NULL) {
  169                 device_printf(dev, "cannot map SEB registers\n");
  170                 return (ENXIO);
  171         }
  172         sc->sc_sebt = rman_get_bustag(hsc->hsc_seb_res);
  173         sc->sc_sebh = rman_get_bushandle(hsc->hsc_seb_res);
  174 
  175         hsc->hsc_etx_rid = 1;
  176         hsc->hsc_etx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
  177             &hsc->hsc_etx_rid, RF_ACTIVE);
  178         if (hsc->hsc_etx_res == NULL) {
  179                 device_printf(dev, "cannot map ETX registers\n");
  180                 error = ENXIO;
  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_any(dev, SYS_RES_MEMORY,
  188             &hsc->hsc_erx_rid, RF_ACTIVE);
  189         if (hsc->hsc_erx_res == NULL) {
  190                 device_printf(dev, "cannot map ERX registers\n");
  191                 error = ENXIO;
  192                 goto fail_etx_res;
  193         }
  194         sc->sc_erxt = rman_get_bustag(hsc->hsc_erx_res);
  195         sc->sc_erxh = rman_get_bushandle(hsc->hsc_erx_res);
  196 
  197         hsc->hsc_mac_rid = 3;
  198         hsc->hsc_mac_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
  199             &hsc->hsc_mac_rid, RF_ACTIVE);
  200         if (hsc->hsc_mac_res == NULL) {
  201                 device_printf(dev, "cannot map MAC registers\n");
  202                 error = ENXIO;
  203                 goto fail_erx_res;
  204         }
  205         sc->sc_mact = rman_get_bustag(hsc->hsc_mac_res);
  206         sc->sc_mach = rman_get_bushandle(hsc->hsc_mac_res);
  207 
  208         /*
  209          * At least on some HMEs, the MIF registers seem to be inside the MAC
  210          * range, so try to kludge around it.
  211          */
  212         hsc->hsc_mif_rid = 4;
  213         hsc->hsc_mif_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
  214             &hsc->hsc_mif_rid, RF_ACTIVE);
  215         if (hsc->hsc_mif_res == NULL) {
  216                 if (bus_get_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
  217                     &start, &count) != 0) {
  218                         device_printf(dev, "cannot get MIF registers\n");
  219                         error = ENXIO;
  220                         goto fail_mac_res;
  221                 }
  222                 if (start < rman_get_start(hsc->hsc_mac_res) ||
  223                     start + count - 1 > rman_get_end(hsc->hsc_mac_res)) {
  224                         device_printf(dev, "cannot move MIF registers to MAC "
  225                             "bank\n");
  226                         error = ENXIO;
  227                         goto fail_mac_res;
  228                 }
  229                 sc->sc_mift = sc->sc_mact;
  230                 bus_space_subregion(sc->sc_mact, sc->sc_mach,
  231                     start - rman_get_start(hsc->hsc_mac_res), count,
  232                     &sc->sc_mifh);
  233         } else {
  234                 sc->sc_mift = rman_get_bustag(hsc->hsc_mif_res);
  235                 sc->sc_mifh = rman_get_bushandle(hsc->hsc_mif_res);
  236         }
  237 
  238         hsc->hsc_irid = 0;
  239         hsc->hsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, 
  240             &hsc->hsc_irid, RF_SHAREABLE | RF_ACTIVE);
  241         if (hsc->hsc_ires == NULL) {
  242                 device_printf(dev, "could not allocate interrupt\n");
  243                 error = ENXIO;
  244                 goto fail_mif_res;
  245         }
  246 
  247         OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr);
  248 
  249         burst = sbus_get_burstsz(dev);
  250         /* Translate into plain numerical format */
  251         if ((burst & SBUS_BURST_64))
  252                 sc->sc_burst = 64;
  253         else if ((burst & SBUS_BURST_32))
  254                 sc->sc_burst = 32;
  255         else if ((burst & SBUS_BURST_16))
  256                 sc->sc_burst = 16;
  257         else
  258                  sc->sc_burst = 0;
  259 
  260         sc->sc_pci = 0; /* XXX: should all be done in bus_dma. */
  261         sc->sc_dev = dev;
  262 
  263         if ((error = hme_config(sc)) != 0) {
  264                 device_printf(dev, "could not be configured\n");
  265                 goto fail_ires;
  266         }
  267 
  268         if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET, hme_intr,
  269              sc, &hsc->hsc_ih)) != 0) {
  270                 device_printf(dev, "couldn't establish interrupt\n");
  271                 hme_detach(sc);
  272                 goto fail_ires;
  273         }
  274         return (0);
  275 
  276 fail_ires:
  277         bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires);
  278 fail_mif_res:
  279         if (hsc->hsc_mif_res != NULL) {
  280                 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
  281                     hsc->hsc_mif_res);
  282         }
  283 fail_mac_res:
  284         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid,
  285             hsc->hsc_mac_res);
  286 fail_erx_res:
  287         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid,
  288             hsc->hsc_erx_res);
  289 fail_etx_res:
  290         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid,
  291             hsc->hsc_etx_res);
  292 fail_seb_res:
  293         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid,
  294             hsc->hsc_seb_res);
  295         return (error);
  296 }
  297 
  298 static int
  299 hme_sbus_detach(device_t dev)
  300 {
  301         struct hme_sbus_softc *hsc = device_get_softc(dev);
  302         struct hme_softc *sc = &hsc->hsc_hme;
  303 
  304         hme_detach(sc);
  305 
  306         bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih);
  307         if (hsc->hsc_mif_res != NULL) {
  308                 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
  309                     hsc->hsc_mif_res);
  310         }
  311         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid,
  312             hsc->hsc_mac_res);
  313         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid,
  314             hsc->hsc_erx_res);
  315         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid,
  316             hsc->hsc_etx_res);
  317         bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid,
  318             hsc->hsc_seb_res);
  319         return (0);
  320 }
  321 
  322 static int
  323 hme_sbus_suspend(device_t dev)
  324 {
  325         struct hme_sbus_softc *hsc = device_get_softc(dev);
  326         struct hme_softc *sc = &hsc->hsc_hme;
  327 
  328         hme_suspend(sc);
  329         return (0);
  330 }
  331 
  332 static int
  333 hme_sbus_resume(device_t dev)
  334 {
  335         struct hme_sbus_softc *hsc = device_get_softc(dev);
  336         struct hme_softc *sc = &hsc->hsc_hme;
  337 
  338         hme_resume(sc);
  339         return (0);
  340 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/hme/if_hme_sbus.c

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sys/dev/hme/if_hme_sbus.c
