sys/dev/pci/if_ep_pci.c

   1 /*      $NetBSD: if_ep_pci.c,v 1.50 2009/05/06 09:25:15 cegger 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  * 4. The name of Herb Peyerl may not be used to endorse or promote products
  50  *    derived from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  53  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  54  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  55  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  56  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  57  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  58  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  59  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  60  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  61  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  62  */
  63
  64 #include <sys/cdefs.h>
  65 __KERNEL_RCSID(0, "$NetBSD: if_ep_pci.c,v 1.50 2009/05/06 09:25:15 cegger Exp $");
  66
  67 #include <sys/param.h>
  68 #include <sys/systm.h>
  69 #include <sys/mbuf.h>
  70 #include <sys/socket.h>
  71 #include <sys/ioctl.h>
  72 #include <sys/errno.h>
  73 #include <sys/syslog.h>
  74 #include <sys/select.h>
  75 #include <sys/device.h>
  76
  77 #include <net/if.h>
  78 #include <net/if_dl.h>
  79 #include <net/if_ether.h>
  80 #include <net/if_media.h>
  81
  82 #include <sys/cpu.h>
  83 #include <sys/bus.h>
  84 #include <sys/intr.h>
  85
  86 #include <dev/mii/miivar.h>
  87
  88 #include <dev/ic/elink3var.h>
  89 #include <dev/ic/elink3reg.h>
  90
  91 #include <dev/pci/pcivar.h>
  92 #include <dev/pci/pcireg.h>
  93 #include <dev/pci/pcidevs.h>
  94
  95 /*
  96  * PCI constants.
  97  */
  98 #define PCI_CBIO                0x10    /* Configuration Base IO Address */
  99
 100 static int      ep_pci_match(device_t , cfdata_t, void *);
 101 static void     ep_pci_attach(device_t , device_t , void *);
 102
 103 CFATTACH_DECL_NEW(ep_pci, sizeof(struct ep_softc),
 104     ep_pci_match, ep_pci_attach, NULL, NULL);
 105
 106 static struct ep_pci_product {
 107         u_int32_t       epp_prodid;     /* PCI product ID */
 108         u_short         epp_chipset;    /* 3Com chipset used */
 109         int             epp_flags;      /* initial softc flags */
 110         const char      *epp_name;      /* device name */
 111 } ep_pci_products[] = {
 112         { PCI_PRODUCT_3COM_3C590,       ELINK_CHIPSET_VORTEX,
 113           0,
 114           "3c590 Ethernet" },
 115
 116         /*
 117          * Note: The 3c595-MII is an MII connector for an
 118          * external PHY.  We treat it as `manual' in the
 119          * core driver.
 120          */
 121         { PCI_PRODUCT_3COM_3C595TX,     ELINK_CHIPSET_VORTEX,
 122           0,
 123           "3c595-TX 10/100 Ethernet" },
 124         { PCI_PRODUCT_3COM_3C595T4,     ELINK_CHIPSET_VORTEX,
 125           0,
 126           "3c595-T4 10/100 Ethernet" },
 127         { PCI_PRODUCT_3COM_3C595MII,    ELINK_CHIPSET_VORTEX,
 128           0,
 129           "3c595-MII 10/100 Ethernet" },
 130
 131         { PCI_PRODUCT_3COM_3C900TPO,    ELINK_CHIPSET_BOOMERANG,
 132           0,
 133           "3c900-TPO Ethernet" },
 134         { PCI_PRODUCT_3COM_3C900COMBO,  ELINK_CHIPSET_BOOMERANG,
 135           0,
 136           "3c900-COMBO Ethernet" },
 137
 138         { PCI_PRODUCT_3COM_3C905TX,     ELINK_CHIPSET_BOOMERANG,
 139           ELINK_FLAGS_MII,
 140           "3c905-TX 10/100 Ethernet" },
 141         { PCI_PRODUCT_3COM_3C905T4,     ELINK_CHIPSET_BOOMERANG,
 142           ELINK_FLAGS_MII,
 143           "3c905-T4 10/100 Ethernet" },
 144
 145         { 0,                            0,
 146           0,                            NULL },
 147 };
 148
 149 static const struct ep_pci_product *
 150 ep_pci_lookup(const struct pci_attach_args *pa)
 151 {
 152         struct ep_pci_product *epp;
 153
 154         if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
 155                 return (NULL);
 156
 157         for (epp = ep_pci_products; epp->epp_name != NULL; epp++)
 158                 if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid)
 159                         return (epp);
 160
 161         return (NULL);
 162 }
 163
 164 static int
 165 ep_pci_match(device_t parent, cfdata_t match, void *aux)
 166 {
 167         struct pci_attach_args *pa = (struct pci_attach_args *) aux;
 168
 169         if (ep_pci_lookup(pa) != NULL)
 170                 return (1);
 171
 172         return (0);
 173 }
 174
 175 static void
 176 ep_pci_attach(device_t parent, device_t self, void *aux)
 177 {
 178         struct ep_softc *sc = device_private(self);
 179         struct pci_attach_args *pa = aux;
 180         pci_chipset_tag_t pc = pa->pa_pc;
 181         pci_intr_handle_t ih;
 182         const struct ep_pci_product *epp;
 183         const char *intrstr = NULL;
 184
 185         aprint_naive(": Ethernet controller\n");
 186
 187         if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
 188             &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
 189                 aprint_error(": can't map i/o space\n");
 190                 return;
 191         }
 192
 193         epp = ep_pci_lookup(pa);
 194         if (epp == NULL) {
 195                 printf("\n");
 196                 panic("ep_pci_attach: impossible");
 197         }
 198
 199         aprint_normal(": 3Com %s\n", epp->epp_name);
 200
 201         sc->sc_dev = self;
 202         sc->enable = NULL;
 203         sc->disable = NULL;
 204         sc->enabled = 1;
 205
 206         sc->bustype = ELINK_BUS_PCI;
 207         sc->ep_flags = epp->epp_flags;
 208
 209         /* Enable the card. */
 210         pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
 211             pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
 212             PCI_COMMAND_MASTER_ENABLE);
 213
 214         /* Map and establish the interrupt. */
 215         if (pci_intr_map(pa, &ih)) {
 216                 aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n");
 217                 return;
 218         }
 219         intrstr = pci_intr_string(pc, ih);
 220         sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epintr, sc);
 221         if (sc->sc_ih == NULL) {
 222                 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
 223                 if (intrstr != NULL)
 224                         aprint_error(" at %s", intrstr);
 225                 aprint_error("\n");
 226                 return;
 227         }
 228         aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
 229
 230         epconfig(sc, epp->epp_chipset, NULL);
 231 }