sys/dev/isa/if_ne_isa.c

   1 /*      $NetBSD: if_ne_isa.c,v 1.25 2008/03/12 14:31:11 cube Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1997, 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 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: if_ne_isa.c,v 1.25 2008/03/12 14:31:11 cube Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/mbuf.h>
  39 #include <sys/socket.h>
  40 #include <sys/ioctl.h>
  41 #include <sys/errno.h>
  42 #include <sys/syslog.h>
  43 #include <sys/select.h>
  44 #include <sys/device.h>
  45
  46 #include <net/if.h>
  47 #include <net/if_dl.h>
  48 #include <net/if_ether.h>
  49 #include <net/if_media.h>
  50
  51 #include <sys/intr.h>
  52 #include <sys/bus.h>
  53
  54 #include <dev/ic/dp8390reg.h>
  55 #include <dev/ic/dp8390var.h>
  56
  57 #include <dev/ic/ne2000reg.h>
  58 #include <dev/ic/ne2000var.h>
  59
  60 #include <dev/ic/rtl80x9reg.h>
  61 #include <dev/ic/rtl80x9var.h>
  62
  63 #include <dev/isa/isavar.h>
  64
  65 int     ne_isa_match(device_t, cfdata_t, void *);
  66 void    ne_isa_attach(device_t, device_t, void *);
  67
  68 struct ne_isa_softc {
  69         struct  ne2000_softc sc_ne2000;         /* real "ne2000" softc */
  70
  71         /* ISA-specific goo. */
  72         void    *sc_ih;                         /* interrupt cookie */
  73 };
  74
  75 CFATTACH_DECL_NEW(ne_isa, sizeof(struct ne_isa_softc),
  76     ne_isa_match, ne_isa_attach, NULL, NULL);
  77
  78 int
  79 ne_isa_match(device_t parent, cfdata_t match, void *aux)
  80 {
  81         struct isa_attach_args *ia = aux;
  82         bus_space_tag_t nict = ia->ia_iot;
  83         bus_space_handle_t nich;
  84         bus_space_tag_t asict;
  85         bus_space_handle_t asich;
  86         int rv = 0;
  87
  88         if (ia->ia_nio < 1)
  89                 return (0);
  90         if (ia->ia_nirq < 1)
  91                 return (0);
  92
  93         if (ISA_DIRECT_CONFIG(ia))
  94                 return (0);
  95
  96         /* Disallow wildcarded values. */
  97         if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
  98                 return (0);
  99         if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
 100                 return (0);
 101
 102         /* Make sure this is a valid NE[12]000 i/o address. */
 103         if ((ia->ia_io[0].ir_addr & 0x1f) != 0)
 104                 return (0);
 105
 106         /* Map i/o space. */
 107         if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 0, &nich))
 108                 return (0);
 109
 110         asict = nict;
 111         if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
 112             NE2000_ASIC_NPORTS, &asich))
 113                 goto out;
 114
 115         /* Look for an NE2000-compatible card. */
 116         rv = ne2000_detect(nict, nich, asict, asich);
 117
 118         if (rv) {
 119                 ia->ia_nio = 1;
 120                 ia->ia_io[0].ir_size = NE2000_NPORTS;
 121
 122                 ia->ia_nirq = 1;
 123
 124                 ia->ia_niomem = 0;
 125                 ia->ia_ndrq = 0;
 126         }
 127
 128  out:
 129         bus_space_unmap(nict, nich, NE2000_NPORTS);
 130         return (rv);
 131 }
 132
 133 void
 134 ne_isa_attach(device_t parent, device_t self, void *aux)
 135 {
 136         struct ne_isa_softc *isc = device_private(self);
 137         struct ne2000_softc *nsc = &isc->sc_ne2000;
 138         struct dp8390_softc *dsc = &nsc->sc_dp8390;
 139         struct isa_attach_args *ia = aux;
 140         bus_space_tag_t nict = ia->ia_iot;
 141         bus_space_handle_t nich;
 142         bus_space_tag_t asict = nict;
 143         bus_space_handle_t asich;
 144         const char *typestr;
 145         int netype;
 146
 147         dsc->sc_dev = self;
 148         aprint_normal("\n");
 149
 150         /* Map i/o space. */
 151         if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS,
 152             0, &nich)) {
 153                 aprint_error_dev(self, "can't map i/o space\n");
 154                 return;
 155         }
 156
 157         if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
 158             NE2000_ASIC_NPORTS, &asich)) {
 159                 aprint_error_dev(self, "can't subregion i/o space\n");
 160                 return;
 161         }
 162
 163         dsc->sc_regt = nict;
 164         dsc->sc_regh = nich;
 165
 166         nsc->sc_asict = asict;
 167         nsc->sc_asich = asich;
 168
 169         /*
 170          * Detect it again, so we can print some information about the
 171          * interface.
 172          */
 173         netype = ne2000_detect(nict, nich, asict, asich);
 174         switch (netype) {
 175         case NE2000_TYPE_NE1000:
 176                 typestr = "NE1000";
 177                 break;
 178
 179         case NE2000_TYPE_NE2000:
 180                 typestr = "NE2000";
 181                 /*
 182                  * Check for a Realtek 8019.
 183                  */
 184                 bus_space_write_1(nict, nich, ED_P0_CR,
 185                     ED_CR_PAGE_0 | ED_CR_STP);
 186                 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
 187                                                                 RTL0_8019ID0 &&
 188                     bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
 189                                                                 RTL0_8019ID1) {
 190                         typestr = "NE2000 (RTL8019)";
 191                         dsc->sc_mediachange = rtl80x9_mediachange;
 192                         dsc->sc_mediastatus = rtl80x9_mediastatus;
 193                         dsc->init_card = rtl80x9_init_card;
 194                         dsc->sc_media_init = rtl80x9_media_init;
 195                 }
 196                 break;
 197
 198         default:
 199                 aprint_error_dev(self, "where did the card go?!\n");
 200                 return;
 201         }
 202
 203         aprint_normal_dev(self, "%s Ethernet\n", typestr);
 204
 205         /* This interface is always enabled. */
 206         dsc->sc_enabled = 1;
 207
 208         /*
 209          * Do generic NE2000 attach.  This will read the station address
 210          * from the EEPROM.
 211          */
 212         ne2000_attach(nsc, NULL);
 213
 214         /* Establish the interrupt handler. */
 215         isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
 216             IST_EDGE, IPL_NET, dp8390_intr, dsc);
 217         if (isc->sc_ih == NULL)
 218                 aprint_error_dev(self,
 219                     "couldn't establish interrupt handler\n");
 220 }