sys/dev/isa/depca_isa.c

   1 /*      $NetBSD: depca_isa.c,v 1.13 2008/04/04 12:25:07 tsutsui Exp $   */
   2
   3 /*-
   4  * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
   9  * Simulation Facility, 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) 1992, 1993
  35  *      The Regents of the University of California.  All rights reserved.
  36  *
  37  * This code is derived from software contributed to Berkeley by
  38  * Ralph Campbell and Rick Macklem.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 3. Neither the name of the University nor the names of its contributors
  49  *    may be used to endorse or promote products derived from this software
  50  *    without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  62  * SUCH DAMAGE.
  63  *
  64  *      @(#)if_le.c     8.2 (Berkeley) 11/16/93
  65  */
  66
  67 #include <sys/cdefs.h>
  68 __KERNEL_RCSID(0, "$NetBSD: depca_isa.c,v 1.13 2008/04/04 12:25:07 tsutsui Exp $");
  69
  70 #include "opt_inet.h"
  71 #include "bpfilter.h"
  72
  73 #include <sys/param.h>
  74 #include <sys/systm.h>
  75 #include <sys/mbuf.h>
  76 #include <sys/syslog.h>
  77 #include <sys/socket.h>
  78 #include <sys/device.h>
  79
  80 #include <net/if.h>
  81 #include <net/if_ether.h>
  82 #include <net/if_media.h>
  83
  84 #ifdef INET
  85 #include <netinet/in.h>
  86 #include <netinet/if_inarp.h>
  87 #endif
  88
  89 #include <sys/cpu.h>
  90 #include <sys/intr.h>
  91 #include <sys/bus.h>
  92
  93 #include <dev/isa/isareg.h>
  94 #include <dev/isa/isavar.h>
  95
  96 #include <dev/ic/lancereg.h>
  97 #include <dev/ic/lancevar.h>
  98 #include <dev/ic/am7990reg.h>
  99 #include <dev/ic/am7990var.h>
 100 #include <dev/ic/depcareg.h>
 101 #include <dev/ic/depcavar.h>
 102
 103 int     depca_isa_probe(device_t, cfdata_t, void *);
 104 void    depca_isa_attach(device_t, device_t, void *);
 105
 106 struct depca_isa_softc {
 107         struct depca_softc sc_depca;
 108         isa_chipset_tag_t sc_ic;
 109         int sc_irq;
 110 };
 111
 112 CFATTACH_DECL_NEW(depca_isa, sizeof(struct depca_isa_softc),
 113     depca_isa_probe, depca_isa_attach, NULL, NULL);
 114
 115 void    *depca_isa_intr_establish(struct depca_softc *, struct lance_softc *);
 116
 117 int
 118 depca_isa_probe(device_t parent, cfdata_t cf, void *aux)
 119 {
 120         struct isa_attach_args *ia = aux;
 121         bus_space_tag_t iot = ia->ia_iot;
 122         bus_space_handle_t ioh;
 123         bus_space_handle_t memh;
 124         int rv = 0;
 125
 126         if (ia->ia_nio < 1)
 127                 return (0);
 128         if (ia->ia_niomem < 1)
 129                 return (0);
 130         if (ia->ia_nirq < 1)
 131                 return (0);
 132
 133         if (ISA_DIRECT_CONFIG(ia))
 134                 return (0);
 135
 136         if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
 137                 return (0);
 138
 139         /* Disallow impossible i/o address. */
 140         if (ia->ia_io[0].ir_addr != 0x200 && ia->ia_io[0].ir_addr != 0x300)
 141                 return (0);
 142
 143         /* Map i/o space. */
 144         if (bus_space_map(iot, ia->ia_io[0].ir_addr, 16, 0, &ioh))
 145                 return 0;
 146
 147         if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM ||
 148             (ia->ia_iomem[0].ir_size != 32 * 1024 &&
 149              ia->ia_iomem[0].ir_size != 64 * 1024))
 150                 goto bad;
 151
 152         /* Map card RAM. */
 153         if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr,
 154             ia->ia_iomem[0].ir_size, 0, &memh))
 155                 goto bad;
 156
 157         /* Just needed to check mapability; don't need it anymore. */
 158         bus_space_unmap(ia->ia_memt, memh, ia->ia_iomem[0].ir_size);
 159
 160         /* Stop the LANCE chip and put it in a known state. */
 161         bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0);
 162         bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C0_STOP);
 163         delay(100);
 164
 165         bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0);
 166         if (bus_space_read_2(iot, ioh, DEPCA_RDP) != LE_C0_STOP)
 167                 goto bad;
 168
 169         bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR3);
 170         bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C3_ACON);
 171
 172         bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_DUM);
 173
 174         if (depca_readprom(iot, ioh, NULL))
 175                 goto bad;
 176
 177         ia->ia_nio = 1;
 178         ia->ia_io[0].ir_size = 16;
 179
 180         ia->ia_niomem = 1;
 181
 182         ia->ia_nirq = 1;
 183
 184         ia->ia_ndrq = 0;
 185
 186         rv = 1;
 187
 188  bad:
 189         bus_space_unmap(iot, ioh, 16);
 190         return (rv);
 191 }
 192
 193 void
 194 depca_isa_attach(device_t parent, device_t self, void *aux)
 195 {
 196         struct depca_isa_softc *isc = device_private(self);
 197         struct depca_softc *sc = &isc->sc_depca;
 198         struct isa_attach_args *ia = aux;
 199
 200         sc->sc_dev = self;
 201         aprint_normal("\n");
 202
 203         sc->sc_iot = ia->ia_iot;
 204         sc->sc_memt = ia->ia_memt;
 205
 206         sc->sc_memsize = ia->ia_iomem[0].ir_size;
 207
 208         if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 16,
 209             0, &sc->sc_ioh) != 0) {
 210                 aprint_error_dev(self, "unable to map i/o space\n");
 211                 return;
 212         }
 213         if (bus_space_map(sc->sc_memt, ia->ia_iomem[0].ir_addr,
 214             ia->ia_iomem[0].ir_size, 0, &sc->sc_memh) != 0) {
 215                 aprint_error_dev(self, "unable to map memory space\n");
 216                 return;
 217         }
 218
 219         isc->sc_ic = ia->ia_ic;
 220         isc->sc_irq = ia->ia_irq[0].ir_irq;
 221         sc->sc_intr_establish = depca_isa_intr_establish;
 222
 223         depca_attach(sc);
 224 }
 225
 226 void *
 227 depca_isa_intr_establish(struct depca_softc *parent, struct lance_softc *child)
 228 {
 229         struct depca_isa_softc *isc = (struct depca_isa_softc *)parent;
 230         void *rv;
 231
 232         rv = isa_intr_establish(isc->sc_ic, isc->sc_irq, IST_EDGE,
 233             IPL_NET, depca_intredge, child);
 234         if (rv == NULL)
 235                 printf("%s: unable to establish interrupt\n",
 236                     device_xname(parent->sc_dev));
 237
 238         return (rv);
 239 }