sys/dev/cardbus/if_fxp_cardbus.c

   1 /*      $NetBSD: if_fxp_cardbus.c,v 1.39 2009/05/12 14:17:31 cegger Exp $       */
   2
   3 /*
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Johan Danielsson.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * CardBus front-end for the Intel i82557 family of Ethernet chips.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: if_fxp_cardbus.c,v 1.39 2009/05/12 14:17:31 cegger Exp $");
  38
  39 #include "opt_inet.h"
  40 #include "bpfilter.h"
  41 #include "rnd.h"
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/mbuf.h>
  46 #include <sys/malloc.h>
  47 #include <sys/kernel.h>
  48 #include <sys/socket.h>
  49 #include <sys/ioctl.h>
  50 #include <sys/errno.h>
  51 #include <sys/device.h>
  52
  53 #if NRND > 0
  54 #include <sys/rnd.h>
  55 #endif
  56
  57 #include <net/if.h>
  58 #include <net/if_dl.h>
  59 #include <net/if_media.h>
  60 #include <net/if_ether.h>
  61
  62 #include <machine/endian.h>
  63
  64 #if NBPFILTER > 0
  65 #include <net/bpf.h>
  66 #endif
  67
  68 #ifdef INET
  69 #include <netinet/in.h>
  70 #include <netinet/if_inarp.h>
  71 #endif
  72
  73
  74 #include <sys/bus.h>
  75 #include <sys/intr.h>
  76
  77 #include <dev/mii/miivar.h>
  78
  79 #include <dev/ic/i82557reg.h>
  80 #include <dev/ic/i82557var.h>
  81
  82 #include <dev/pci/pcivar.h>
  83 #include <dev/pci/pcireg.h>
  84 #include <dev/pci/pcidevs.h>
  85
  86 #include <dev/cardbus/cardbusvar.h>
  87 #include <dev/pci/pcidevs.h>
  88
  89 static int fxp_cardbus_match(device_t, cfdata_t, void *);
  90 static void fxp_cardbus_attach(device_t, device_t, void *);
  91 static int fxp_cardbus_detach(device_t, int);
  92 static void fxp_cardbus_setup(struct fxp_softc *);
  93 static int fxp_cardbus_enable(struct fxp_softc *);
  94 static void fxp_cardbus_disable(struct fxp_softc *);
  95
  96 struct fxp_cardbus_softc {
  97         struct fxp_softc sc;
  98         cardbus_devfunc_t ct;
  99         pcireg_t base0_reg;
 100         pcireg_t base1_reg;
 101         bus_size_t size;
 102 };
 103
 104 CFATTACH_DECL_NEW(fxp_cardbus, sizeof(struct fxp_cardbus_softc),
 105     fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate);
 106
 107 #ifdef CBB_DEBUG
 108 #define DPRINTF(X) printf X
 109 #else
 110 #define DPRINTF(X)
 111 #endif
 112
 113 static int
 114 fxp_cardbus_match(device_t parent, cfdata_t match,
 115     void *aux)
 116 {
 117         struct cardbus_attach_args *ca = aux;
 118
 119         if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL &&
 120             CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_82557)
 121                 return (1);
 122
 123         return (0);
 124 }
 125
 126 static void
 127 fxp_cardbus_attach(device_t parent, device_t self,
 128     void *aux)
 129 {
 130         struct fxp_cardbus_softc *csc = device_private(self);
 131         struct fxp_softc *sc = &csc->sc;
 132         struct cardbus_attach_args *ca = aux;
 133         bus_space_tag_t iot, memt;
 134         bus_space_handle_t ioh, memh;
 135
 136         bus_addr_t adr;
 137         bus_size_t size;
 138
 139         sc->sc_dev = self;
 140         csc->ct = ca->ca_ct;
 141
 142         /*
 143          * Map control/status registers.
 144          */
 145         if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE1_REG,
 146             PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &size) == 0) {
 147                 csc->base1_reg = adr | 1;
 148                 sc->sc_st = iot;
 149                 sc->sc_sh = ioh;
 150                 csc->size = size;
 151         } else if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE0_REG,
 152             PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
 153             0, &memt, &memh, &adr, &size) == 0) {
 154                 csc->base0_reg = adr;
 155                 sc->sc_st = memt;
 156                 sc->sc_sh = memh;
 157                 csc->size = size;
 158         } else
 159                 panic("%s: failed to allocate mem and io space", __func__);
 160
 161         if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1])
 162                 printf(": %s %s\n", ca->ca_cis.cis1_info[0],
 163                     ca->ca_cis.cis1_info[1]);
 164         else
 165                 printf("\n");
 166
 167         sc->sc_rev = CARDBUS_REVISION(ca->ca_class);
 168         if (sc->sc_rev >= FXP_REV_82558_A4)
 169                 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB;
 170         if (sc->sc_rev >= FXP_REV_82559_A0)
 171                 sc->sc_flags |= FXPF_82559_RXCSUM;
 172         if (sc->sc_rev >= FXP_REV_82550) {
 173                 sc->sc_flags &= ~FXPF_82559_RXCSUM;
 174                 sc->sc_flags |= FXPF_EXT_RFA;
 175         }
 176
 177         sc->sc_dmat = ca->ca_dmat;
 178         sc->sc_enable = fxp_cardbus_enable;
 179         sc->sc_disable = fxp_cardbus_disable;
 180         sc->sc_enabled = 0;
 181
 182         fxp_enable(sc);
 183         fxp_attach(sc);
 184         fxp_disable(sc);
 185
 186         if (pmf_device_register(self, NULL, NULL))
 187                 pmf_class_network_register(self, &sc->sc_ethercom.ec_if);
 188         else
 189                 aprint_error_dev(self, "couldn't establish power handler\n");
 190 }
 191
 192 static void
 193 fxp_cardbus_setup(struct fxp_softc * sc)
 194 {
 195         struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
 196         struct cardbus_softc *psc = device_private(device_parent(sc->sc_dev));
 197         cardbus_chipset_tag_t cc = psc->sc_cc;
 198         cardbus_function_tag_t cf = psc->sc_cf;
 199         pcireg_t command;
 200
 201         cardbustag_t tag = cardbus_make_tag(cc, cf, csc->ct->ct_bus,
 202             csc->ct->ct_func);
 203
 204         command = Cardbus_conf_read(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG);
 205         if (csc->base0_reg) {
 206                 Cardbus_conf_write(csc->ct, tag,
 207                     CARDBUS_BASE0_REG, csc->base0_reg);
 208                 (cf->cardbus_ctrl) (cc, CARDBUS_MEM_ENABLE);
 209                 command |= CARDBUS_COMMAND_MEM_ENABLE |
 210                     CARDBUS_COMMAND_MASTER_ENABLE;
 211         } else if (csc->base1_reg) {
 212                 Cardbus_conf_write(csc->ct, tag,
 213                     CARDBUS_BASE1_REG, csc->base1_reg);
 214                 (cf->cardbus_ctrl) (cc, CARDBUS_IO_ENABLE);
 215                 command |= (CARDBUS_COMMAND_IO_ENABLE |
 216                     CARDBUS_COMMAND_MASTER_ENABLE);
 217         }
 218
 219         (cf->cardbus_ctrl) (cc, CARDBUS_BM_ENABLE);
 220
 221         /* enable the card */
 222         Cardbus_conf_write(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG, command);
 223 }
 224
 225 static int
 226 fxp_cardbus_enable(struct fxp_softc * sc)
 227 {
 228         struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
 229         struct cardbus_softc *psc = device_private(device_parent(sc->sc_dev));
 230         cardbus_chipset_tag_t cc = psc->sc_cc;
 231         cardbus_function_tag_t cf = psc->sc_cf;
 232
 233         Cardbus_function_enable(csc->ct);
 234
 235         fxp_cardbus_setup(sc);
 236
 237         /* Map and establish the interrupt. */
 238
 239         sc->sc_ih = cardbus_intr_establish(cc, cf, psc->sc_intrline, IPL_NET,
 240             fxp_intr, sc);
 241         if (NULL == sc->sc_ih) {
 242                 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n");
 243                 return 1;
 244         }
 245
 246         return 0;
 247 }
 248
 249 static void
 250 fxp_cardbus_disable(struct fxp_softc * sc)
 251 {
 252         struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
 253         struct cardbus_softc *psc = device_private(device_parent(sc->sc_dev));
 254         cardbus_chipset_tag_t cc = psc->sc_cc;
 255         cardbus_function_tag_t cf = psc->sc_cf;
 256
 257         /* Remove interrupt handler. */
 258         cardbus_intr_disestablish(cc, cf, sc->sc_ih);
 259
 260         Cardbus_function_disable(csc->ct);
 261 }
 262
 263 static int
 264 fxp_cardbus_detach(device_t self, int flags)
 265 {
 266         struct fxp_cardbus_softc *csc = device_private(self);
 267         struct fxp_softc *sc = &csc->sc;
 268         struct cardbus_devfunc *ct = csc->ct;
 269         int rv, reg;
 270
 271 #ifdef DIAGNOSTIC
 272         if (ct == NULL)
 273                 panic("%s: data structure lacks", device_xname(self));
 274 #endif
 275
 276         rv = fxp_detach(sc);
 277         if (rv == 0) {
 278                 /*
 279                  * Unhook the interrupt handler.
 280                  */
 281                 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
 282
 283                 /*
 284                  * release bus space and close window
 285                  */
 286                 if (csc->base0_reg)
 287                         reg = CARDBUS_BASE0_REG;
 288                 else
 289                         reg = CARDBUS_BASE1_REG;
 290                 Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, csc->size);
 291         }
 292         return (rv);
 293 }