sys/dev/netif/ed/if_ed_pci.c

   1 /*
   2  *
   3  * Copyright (c) 1996 Stefan Esser <se@freebsd.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice immediately at the beginning of the file, without modification,
  11  *    this list of conditions, and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Absolutely no warranty of function or purpose is made by the author
  16  *    Stefan Esser.
  17  * 4. Modifications may be freely made to this file if the above conditions
  18  *    are met.
  19  *
  20  * $FreeBSD: src/sys/dev/ed/if_ed_pci.c,v 1.34 2003/10/31 18:31:58 brooks Exp $
  21  * $DragonFly: src/sys/dev/netif/ed/if_ed_pci.c,v 1.16 2008/08/17 04:32:33 sephe Exp $
  22  */
  23
  24 #include <sys/param.h>
  25 #include <sys/systm.h>
  26 #include <sys/socket.h>
  27 #include <sys/kernel.h>
  28 #include <sys/module.h>
  29 #include <sys/interrupt.h>
  30 #include <sys/bus.h>
  31 #include <sys/rman.h>
  32
  33 #include <net/if.h>
  34 #include <net/if_arp.h>
  35 #include <net/if_mib.h>
  36
  37 #include <bus/pci/pcidevs.h>
  38 #include <bus/pci/pcireg.h>
  39 #include <bus/pci/pcivar.h>
  40
  41 #include "if_edvar.h"
  42
  43 static int ed_pci_detach(device_t dev);
  44
  45 static struct ed_type {
  46         uint16_t         ed_vid;
  47         uint16_t         ed_did;
  48         const char      *ed_name;
  49 } ed_devs[] = {
  50         { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8029,
  51                 "NE2000 PCI Ethernet (RealTek 8029)" },
  52         { PCI_VENDOR_NETVIN, PCI_PRODUCT_NETVIN_5000,
  53                 "NE2000 PCI Ethernet (NetVin 5000)" },
  54         { PCI_VENDOR_PROLAN, PCI_PRODUCT_PROLAN_NE2KETHER,
  55                 "NE2000 PCI Ethernet (ProLAN)" },
  56         { PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_NE2KETHER,
  57                 "NE2000 PCI Ethernet (Compex)" },
  58         { PCI_VENDOR_KTI, PCI_PRODUCT_KTI_NE2KETHER,
  59                 "NE2000 PCI Ethernet (KTI)" },
  60         { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F,
  61                 "NE2000 PCI Ethernet (Winbond W89C940)" },
  62         { PCI_VENDOR_SURECOM, PCI_PRODUCT_SURECOM_NE34,
  63                 "NE2000 PCI Ethernet (Surecom NE-34)" },
  64         { PCI_VENDOR_VIATECH, PCI_PRODUCT_VIATECH_VT86C926,
  65                 "NE2000 PCI Ethernet (VIA VT86C926)" },
  66         { 0, 0, NULL }
  67 };
  68
  69 static int      ed_pci_probe    (device_t);
  70 static int      ed_pci_attach   (device_t);
  71
  72 static int
  73 ed_pci_probe(device_t dev)
  74 {
  75         struct ed_type *t;
  76         uint16_t product = pci_get_device(dev);
  77         uint16_t vendor = pci_get_vendor(dev);
  78
  79         for (t = ed_devs; t->ed_name != NULL; t++) {
  80                 if (vendor == t->ed_vid && product == t->ed_did) {
  81                         device_set_desc(dev, t->ed_name);
  82                         return 0;
  83                 }
  84         }
  85         return ENXIO;
  86 }
  87
  88 static int
  89 ed_pci_attach(device_t dev)
  90 {
  91         struct  ed_softc *sc = device_get_softc(dev);
  92         int     flags = 0;
  93         int     error;
  94
  95         error = ed_probe_Novell(dev, PCIR_MAPS, flags);
  96         if (error)
  97                 return (error);
  98
  99         error = ed_alloc_irq(dev, 0, RF_SHAREABLE);
 100         if (error) {
 101                 ed_release_resources(dev);
 102                 return (error);
 103         }
 104
 105         error = ed_attach(dev);
 106         if (error == 0) {
 107                 struct ifnet *ifp = &sc->arpcom.ac_if;
 108
 109                 error = bus_setup_intr(dev, sc->irq_res, INTR_MPSAFE,
 110                                        edintr, sc, &sc->irq_handle,
 111                                        ifp->if_serializer);
 112                 if (error) {
 113                         ed_pci_detach(dev);
 114                 } else {
 115                         ifp->if_cpuid =
 116                                 ithread_cpuid(rman_get_start(sc->irq_res));
 117                         KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
 118                 }
 119         } else {
 120                 ed_release_resources(dev);
 121         }
 122         return (error);
 123 }
 124
 125 static int
 126 ed_pci_detach(device_t dev)
 127 {
 128         struct ed_softc *sc = device_get_softc(dev);
 129         struct ifnet *ifp = &sc->arpcom.ac_if;
 130
 131         lwkt_serialize_enter(ifp->if_serializer);
 132
 133         if (sc->gone) {
 134                 device_printf(dev, "already unloaded\n");
 135                 lwkt_serialize_exit(ifp->if_serializer);
 136                 return (0);
 137         }
 138         ed_stop(sc);
 139         ifp->if_flags &= ~IFF_RUNNING;
 140         sc->gone = 1;
 141         bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
 142
 143         lwkt_serialize_exit(ifp->if_serializer);
 144
 145         ether_ifdetach(ifp);
 146         ed_release_resources(dev);
 147         return (0);
 148 }
 149
 150 static device_method_t ed_pci_methods[] = {
 151         /* Device interface */
 152         DEVMETHOD(device_probe,         ed_pci_probe),
 153         DEVMETHOD(device_attach,        ed_pci_attach),
 154         DEVMETHOD(device_attach,        ed_pci_detach),
 155
 156         { 0, 0 }
 157 };
 158
 159 static driver_t ed_pci_driver = {
 160         "ed",
 161         ed_pci_methods,
 162         sizeof(struct ed_softc),
 163 };
 164
 165 DRIVER_MODULE(ed, pci, ed_pci_driver, ed_devclass, 0, 0);
 166 MODULE_DEPEND(ed, pci, 1, 1, 1);