The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/eisa/if_tlp_eisa.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: if_tlp_eisa.c,v 1.21 2008/04/28 20:23:48 martin Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
    9  * NASA Ames Research Center.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   30  * POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * EISA bus front-end for the Digital Semiconductor ``Tulip'' (21x4x)
   35  * Ethernet controller family driver.
   36  */
   37 
   38 #include <sys/cdefs.h>
   39 __KERNEL_RCSID(0, "$NetBSD: if_tlp_eisa.c,v 1.21 2008/04/28 20:23:48 martin Exp $");
   40 
   41 #include "opt_inet.h"
   42 #include "bpfilter.h"
   43 
   44 #include <sys/param.h>
   45 #include <sys/systm.h>
   46 #include <sys/mbuf.h>
   47 #include <sys/malloc.h>
   48 #include <sys/kernel.h>
   49 #include <sys/socket.h>
   50 #include <sys/ioctl.h>
   51 #include <sys/errno.h>
   52 #include <sys/device.h>
   53 
   54 #include <machine/endian.h>
   55 
   56 #include <net/if.h>
   57 #include <net/if_dl.h>
   58 #include <net/if_media.h>
   59 #include <net/if_ether.h>
   60 
   61 #if NBPFILTER > 0
   62 #include <net/bpf.h>
   63 #endif
   64 
   65 #ifdef INET
   66 #include <netinet/in.h>
   67 #include <netinet/if_inarp.h>
   68 #endif
   69 
   70 
   71 #include <sys/bus.h>
   72 #include <sys/intr.h>
   73 
   74 #include <dev/mii/miivar.h>
   75 #include <dev/mii/mii_bitbang.h>
   76 
   77 #include <dev/ic/tulipreg.h>
   78 #include <dev/ic/tulipvar.h>
   79 
   80 #include <dev/eisa/eisareg.h>
   81 #include <dev/eisa/eisavar.h>
   82 #include <dev/eisa/eisadevs.h>
   83 
   84 #include <dev/pci/pcireg.h>
   85 
   86 /*
   87  * DE425 configuration registers; literal offsets from CSR base.
   88  * This is effectively the 21040 PCI configuration space interleaved
   89  * into the CSR space (CSRs are space 16 bytes on the DE425).
   90  *
   91  * What a cool address decoder hack they must have on that board...
   92  */
   93 #define DE425_CFID              0x08    /* Configuration ID */
   94 #define DE425_CFCS              0x0c    /* Configuration Command-Status */
   95 #define DE425_CFRV              0x18    /* Configuration Revision */
   96 #define DE425_CFLT              0x1c    /* Configuration Latency Timer */
   97 #define DE425_CBIO              0x28    /* Configuration Base I/O Address */
   98 #define DE425_CFDA              0x2c    /* Configuration Driver Area */
   99 #define DE425_ENETROM           0xc90   /* Offset in I/O space for ENETROM */
  100 #define DE425_CFG0              0xc88   /* IRQ Configuration Register */
  101 
  102 struct tulip_eisa_softc {
  103         struct tulip_softc sc_tulip;    /* real Tulip softc */
  104 
  105         /* EISA-specific goo. */
  106         void    *sc_ih;                 /* interrupt handle */
  107 };
  108 
  109 static int      tlp_eisa_match(struct device *, struct cfdata *, void *);
  110 static void     tlp_eisa_attach(struct device *, struct device *, void *);
  111 
  112 CFATTACH_DECL(tlp_eisa, sizeof(struct tulip_eisa_softc),
  113     tlp_eisa_match, tlp_eisa_attach, NULL, NULL);
  114 
  115 static const int tlp_eisa_irqs[] = { 5, 9, 10, 11 };
  116 
  117 static const struct tulip_eisa_product {
  118         const char      *tep_eisaid;    /* EISA ID */
  119         const char      *tep_name;      /* device name */
  120         tulip_chip_t    tep_chip;       /* base Tulip chip type */
  121 } tlp_eisa_products[] = {
  122         { "DEC4250",                    "DEC DE425",
  123           TULIP_CHIP_DE425 },
  124 
  125         { NULL,                         NULL,
  126           TULIP_CHIP_INVALID },
  127 };
  128 
  129 static const struct tulip_eisa_product *
  130 tlp_eisa_lookup(const struct eisa_attach_args *ea)
  131 {
  132         const struct tulip_eisa_product *tep;
  133 
  134         for (tep = tlp_eisa_products;
  135              tep->tep_chip != TULIP_CHIP_INVALID; tep++)
  136                 if (strcmp(ea->ea_idstring, tep->tep_eisaid) == 0)
  137                         return (tep);
  138         return (NULL);
  139 }
  140 
  141 static int
  142 tlp_eisa_match(struct device *parent, struct cfdata *match,
  143     void *aux)
  144 {
  145         struct eisa_attach_args *ea = aux;
  146 
  147         if (tlp_eisa_lookup(ea) != NULL)
  148                 return (1);
  149 
  150         return (0);
  151 }
  152 
  153 static void
  154 tlp_eisa_attach(struct device *parent, struct device *self, void *aux)
  155 {
  156         static const u_int8_t testpat[] =
  157             { 0xff, 0, 0x55, 0xaa, 0xff, 0, 0x55, 0xaa };
  158         struct tulip_eisa_softc *esc = device_private(self);
  159         struct tulip_softc *sc = &esc->sc_tulip;
  160         struct eisa_attach_args *ea = aux;
  161         eisa_chipset_tag_t ec = ea->ea_ec;
  162         eisa_intr_handle_t ih;
  163         bus_space_tag_t iot = ea->ea_iot;
  164         bus_space_handle_t ioh;
  165         const char *intrstr;
  166         const struct tulip_eisa_product *tep;
  167         u_int8_t enaddr[ETHER_ADDR_LEN], tmpbuf[sizeof(testpat)];
  168         u_int32_t val;
  169         int irq, i, cnt;
  170 
  171         /*
  172          * Map the device.
  173          */
  174         if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot),
  175             EISA_SLOT_SIZE, 0, &ioh)) {
  176                 printf(": unable to map I/O space\n");
  177                 return;
  178         }
  179 
  180         sc->sc_st = iot;
  181         sc->sc_sh = ioh;
  182 
  183         tep = tlp_eisa_lookup(ea);
  184         if (tep == NULL) {
  185                 printf("\n");
  186                 panic("tlp_eisa_attach: impossible");
  187         }
  188         sc->sc_chip = tep->tep_chip;
  189 
  190         /*
  191          * DE425's registers are 16 bytes long; the PCI configuration
  192          * space registers are interleaved in the I/O space.
  193          */
  194         sc->sc_regshift = 4;
  195 
  196         /*
  197          * No power management hooks.
  198          */
  199         sc->sc_flags |= TULIPF_ENABLED;
  200 
  201         /*
  202          * CBIO must map the EISA slot, and I/O access and Bus Mastering
  203          * must be enabled.
  204          */
  205         bus_space_write_4(iot, ioh, DE425_CBIO, EISA_SLOT_ADDR(ea->ea_slot));
  206         bus_space_write_4(iot, ioh, DE425_CFCS,
  207             bus_space_read_4(iot, ioh, DE425_CFCS) |
  208             PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE);
  209 
  210         /*
  211          * Get revision info.
  212          */
  213         sc->sc_rev = bus_space_read_4(iot, ioh, DE425_CFRV) & 0xff;
  214 
  215         printf(": %s Ethernet, pass %d.%d\n",
  216             tep->tep_name, (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf);
  217 
  218         sc->sc_dmat = ea->ea_dmat;
  219 
  220         /*
  221          * EISA doesn't have a cache line register.
  222          */
  223         sc->sc_cacheline = 0;
  224 
  225         /*
  226          * Find the beginning of the Ethernet Address ROM.
  227          */
  228         for (i = 0, cnt = 0; i < sizeof(testpat) && cnt < 32; cnt++) {
  229                 tmpbuf[i] = bus_space_read_1(iot, ioh, DE425_ENETROM);
  230                 if (tmpbuf[i] == testpat[i])
  231                         i++;
  232                 else
  233                         i = 0;
  234         }
  235 
  236         /*
  237          * ...and now read the contents of the Ethernet Address ROM.
  238          */
  239         sc->sc_srom = malloc(32, M_DEVBUF, M_WAITOK|M_ZERO);
  240         for (i = 0; i < 32; i++)
  241                 sc->sc_srom[i] = bus_space_read_1(iot, ioh, DE425_ENETROM);
  242 
  243         /*
  244          * None of the DE425 boards have the new-style SROMs.
  245          */
  246         if (tlp_parse_old_srom(sc, enaddr) == 0) {
  247                 aprint_error_dev(&sc->sc_dev, "unable to decode old-style SROM\n");
  248                 return;
  249         }
  250 
  251         /*
  252          * All DE425 boards use the 21040 media switch.
  253          */
  254         sc->sc_mediasw = &tlp_21040_mediasw;
  255 
  256         /*
  257          * Figure out which IRQ we want to use, and determine of it's
  258          * edge- or level-triggered.
  259          */
  260         val = bus_space_read_4(iot, ioh, DE425_CFG0);
  261         irq = tlp_eisa_irqs[(val >> 1) & 0x03];
  262 
  263         /*
  264          * Map and establish our interrupt.
  265          */
  266         if (eisa_intr_map(ec, irq, &ih)) {
  267                 aprint_error_dev(&sc->sc_dev, "unable to map interrupt (%u)\n",
  268                     irq);
  269                 return;
  270         }
  271         intrstr = eisa_intr_string(ec, ih);
  272         esc->sc_ih = eisa_intr_establish(ec, ih,
  273             (val & 0x01) ? IST_EDGE : IST_LEVEL, IPL_NET, tlp_intr, sc);
  274         if (esc->sc_ih == NULL) {
  275                 aprint_error_dev(&sc->sc_dev, "unable to establish interrupt");
  276                 if (intrstr != NULL)
  277                         printf(" at %s", intrstr);
  278                 printf("\n");
  279                 return;
  280         }
  281         if (intrstr != NULL)
  282                 printf("%s: interrupting at %s\n", device_xname(&sc->sc_dev),
  283                     intrstr);
  284 
  285         /*
  286          * Finish off the attach.
  287          */
  288         tlp_attach(sc, enaddr);
  289 }

Cache object: 843f607b150a8fd98e4bbbd2813423bb


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.