sys/dev/eisa/if_ep_eisa.c

   1 /*      $NetBSD: if_ep_eisa.c,v 1.40 2009/01/31 13:54:10 martin Exp $   */
   2
   3 /*-
   4  * Copyright (c) 1998 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  * Copyright (c) 1997 Jonathan Stone <jonathan@NetBSD.org>
  35  * Copyright (c) 1994 Herb Peyerl <hpeyerl@beer.org>
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  * 1. Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  * 2. Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in the
  45  *    documentation and/or other materials provided with the distribution.
  46  * 3. All advertising materials mentioning features or use of this software
  47  *    must display the following acknowledgement:
  48  *      This product includes software developed by Herb Peyerl.
  49  *      This product includes software developed by Jonathan Stone.
  50  * 4. The name of Herb Peyerl or Jonathan Stone may not be used to endorse
  51  *    or promote products derived from this software without specific
  52  *    prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  55  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  56  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  57  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  58  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  59  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  60  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  63  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  64  */
  65
  66 #include <sys/cdefs.h>
  67 __KERNEL_RCSID(0, "$NetBSD: if_ep_eisa.c,v 1.40 2009/01/31 13:54:10 martin Exp $");
  68
  69 #include "opt_inet.h"
  70 #include "bpfilter.h"
  71
  72 #include <sys/param.h>
  73 #include <sys/systm.h>
  74 #include <sys/mbuf.h>
  75 #include <sys/socket.h>
  76 #include <sys/ioctl.h>
  77 #include <sys/errno.h>
  78 #include <sys/syslog.h>
  79 #include <sys/select.h>
  80 #include <sys/device.h>
  81
  82 #include <net/if.h>
  83 #include <net/if_dl.h>
  84 #include <net/if_ether.h>
  85 #include <net/if_media.h>
  86
  87 #ifdef INET
  88 #include <netinet/in.h>
  89 #include <netinet/in_systm.h>
  90 #include <netinet/in_var.h>
  91 #include <netinet/ip.h>
  92 #include <netinet/if_inarp.h>
  93 #endif
  94
  95
  96 #if NBPFILTER > 0
  97 #include <net/bpf.h>
  98 #include <net/bpfdesc.h>
  99 #endif
 100
 101 #include <sys/cpu.h>
 102 #include <sys/bus.h>
 103 #include <sys/intr.h>
 104
 105 #include <dev/mii/miivar.h>
 106
 107 #include <dev/ic/elink3var.h>
 108 #include <dev/ic/elink3reg.h>
 109
 110 #include <dev/eisa/eisareg.h>
 111 #include <dev/eisa/eisavar.h>
 112 #include <dev/eisa/eisadevs.h>
 113
 114 static int      ep_eisa_match(device_t , cfdata_t , void *);
 115 static void     ep_eisa_attach(device_t , device_t , void *);
 116
 117 CFATTACH_DECL_NEW(ep_eisa, sizeof(struct ep_softc),
 118     ep_eisa_match, ep_eisa_attach, NULL, NULL);
 119
 120 /* XXX move these somewhere else */
 121 /* While attaching we need a few special EISA registers of the card,
 122    these are mapped at slotbase+EP_EISA_CFG_BASE with len EP_EISA_CFG_SIZE */
 123 #define EP_EISA_CFG_BASE        0x0c80
 124 #define EP_EISA_CFG_CONTROL     0x0004  /* 1 byte */
 125 #define EP_EISA_CFG_RESOURCE    0x0008  /* 2 byte */
 126 #define EP_EISA_CFG_SIZE        0x000a
 127
 128 /* The generic driver backend only needs access to the standard ports,
 129    mapped at the beginning of the eisa slot space */
 130 #define EP_IOPORT_OFFSET        0x0000
 131 #define EP_IOPORT_SIZE          0x0020
 132
 133 /* Bits for the eisa control register */
 134 #define EISA_RESET      0x04
 135 #define EISA_ERROR      0x02
 136 #define EISA_ENABLE     0x01
 137
 138 static const struct ep_eisa_product {
 139         const char      *eep_eisaid;    /* EISA ID */
 140         u_short         eep_chipset;    /* 3Com chipset used */
 141         int             eep_flags;      /* initial softc flags */
 142         const char      *eep_name;      /* device name */
 143 } ep_eisa_products[] = {
 144         { "TCM5090",                    ELINK_CHIPSET_3C509,
 145           0,                            EISA_PRODUCT_TCM5090 },
 146         { "TCM5091",                    ELINK_CHIPSET_3C509,
 147           0,                            EISA_PRODUCT_TCM5091 },
 148         { "TCM5092",                    ELINK_CHIPSET_3C509,
 149           0,                            EISA_PRODUCT_TCM5092 },
 150         { "TCM5093",                    ELINK_CHIPSET_3C509,
 151           0,                            EISA_PRODUCT_TCM5093 },
 152         { "TCM5094",                    ELINK_CHIPSET_3C509,
 153           0,                            EISA_PRODUCT_TCM5094 },
 154         { "TCM5095",                    ELINK_CHIPSET_3C509,
 155           0,                            EISA_PRODUCT_TCM5095 },
 156         { "TCM5098",                    ELINK_CHIPSET_3C509,
 157           0,                            EISA_PRODUCT_TCM5098 },
 158
 159         /*
 160          * Note: The 3c597 Fast Etherlink MII (TCM5972) is an
 161          * MII connector for an external PHY.  We treat it as
 162          * `manual' in the core driver.
 163          */
 164         { "TCM5920",                    ELINK_CHIPSET_VORTEX,
 165           0,                            EISA_PRODUCT_TCM5920 },
 166         { "TCM5970",                    ELINK_CHIPSET_VORTEX,
 167           0,                            EISA_PRODUCT_TCM5970 },
 168         { "TCM5971",                    ELINK_CHIPSET_VORTEX,
 169           0,                            EISA_PRODUCT_TCM5971 },
 170         { "TCM5972",                    ELINK_CHIPSET_VORTEX,
 171           0,                            EISA_PRODUCT_TCM5972 },
 172
 173         { NULL,                         0,
 174           0,                            NULL },
 175 };
 176
 177 static const struct ep_eisa_product *
 178 ep_eisa_lookup(const struct eisa_attach_args *ea)
 179 {
 180         const struct ep_eisa_product *eep;
 181
 182         for (eep = ep_eisa_products; eep->eep_name != NULL; eep++)
 183                 if (strcmp(ea->ea_idstring, eep->eep_eisaid) == 0)
 184                         return (eep);
 185
 186         return (NULL);
 187 }
 188
 189 static int
 190 ep_eisa_match(device_t parent, cfdata_t match, void *aux)
 191 {
 192         struct eisa_attach_args *ea = aux;
 193
 194         /* must match one of our known ID strings */
 195         if (ep_eisa_lookup(ea) != NULL)
 196                 return (1);
 197
 198         return (0);
 199 }
 200
 201 static void
 202 ep_eisa_attach(device_t parent, device_t self, void *aux)
 203 {
 204         struct ep_softc *sc = device_private(self);
 205         struct eisa_attach_args *ea = aux;
 206         bus_space_tag_t iot = ea->ea_iot;
 207         bus_space_handle_t ioh, ioh_cfg;
 208         eisa_chipset_tag_t ec = ea->ea_ec;
 209         eisa_intr_handle_t ih;
 210         const char *intrstr;
 211         const struct ep_eisa_product *eep;
 212         u_int irq;
 213
 214         /* Map i/o space. */
 215         if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + EP_EISA_CFG_BASE,
 216             EP_EISA_CFG_SIZE, 0, &ioh_cfg)) {
 217                 printf("\n");
 218                 panic("ep_eisa_attach: can't map eisa cfg i/o space");
 219         }
 220         if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + EP_IOPORT_OFFSET,
 221             EP_IOPORT_SIZE, 0, &ioh)) {
 222                 printf("\n");
 223                 panic("ep_eisa_attach: can't map i/o space");
 224         }
 225
 226         sc->sc_dev = self;
 227         sc->sc_ioh = ioh;
 228         sc->sc_iot = iot;
 229
 230         bus_space_write_1(iot, ioh_cfg, EP_EISA_CFG_CONTROL, EISA_ENABLE);
 231         delay(4000);
 232
 233         /* Read the IRQ from the card. */
 234         irq = bus_space_read_2(iot, ioh_cfg, EP_EISA_CFG_RESOURCE) >> 12;
 235
 236         eep = ep_eisa_lookup(ea);
 237         if (eep == NULL) {
 238                 printf("\n");
 239                 panic("ep_eisa_attach: impossible");
 240         }
 241
 242         /* we don't need access to the config registers any more, but
 243            noone else should be able to map this space, so keep it
 244            reserved? */
 245 #if 0
 246         bus_space_unmap(iot, ioh_cfg, EP_EISA_CFG_SIZE);
 247 #endif
 248
 249         printf(": %s\n", eep->eep_name);
 250
 251         sc->enable = NULL;
 252         sc->disable = NULL;
 253         sc->enabled = 1;
 254
 255         sc->bustype = ELINK_BUS_EISA;
 256         sc->ep_flags = eep->eep_flags;
 257
 258         if (eisa_intr_map(ec, irq, &ih)) {
 259                 aprint_error_dev(sc->sc_dev, "couldn't map interrupt (%u)\n",
 260                     irq);
 261                 return;
 262         }
 263         intrstr = eisa_intr_string(ec, ih);
 264         sc->sc_ih = eisa_intr_establish(ec, ih, IST_EDGE, IPL_NET,
 265             epintr, sc);
 266         if (sc->sc_ih == NULL) {
 267                 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
 268                 if (intrstr != NULL)
 269                         aprint_error(" at %s", intrstr);
 270                 aprint_error("\n");
 271                 return;
 272         }
 273         if (intrstr != NULL)
 274                 aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
 275
 276         epconfig(sc, eep->eep_chipset, NULL);
 277 }