drivers/net/Space.c

   1 /*
   2  * INET         An implementation of the TCP/IP protocol suite for the LINUX
   3  *              operating system.  INET is implemented using the  BSD Socket
   4  *              interface as the means of communication with the user level.
   5  *
   6  *              Holds initial configuration information for devices.
   7  *
   8  * Version:     @(#)Space.c     1.0.7   08/12/93
   9  *
  10  * Authors:     Ross Biro
  11  *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  12  *              Donald J. Becker, <becker@scyld.com>
  13  *
  14  * Changelog:
  15  *              Stephen Hemminger (09/2003)
  16  *              - get rid of pre-linked dev list, dynamic device allocation
  17  *              Paul Gortmaker (03/2002)
  18  *              - struct init cleanup, enable multiple ISA autoprobes.
  19  *              Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 09/1999
  20  *              - fix sbni: s/device/net_device/
  21  *              Paul Gortmaker (06/98):
  22  *               - sort probes in a sane way, make sure all (safe) probes
  23  *                 get run once & failed autoprobes don't autoprobe again.
  24  *
  25  *              This program is free software; you can redistribute it and/or
  26  *              modify it under the terms of the GNU General Public License
  27  *              as published by the Free Software Foundation; either version
  28  *              2 of the License, or (at your option) any later version.
  29  */
  30 #include <linux/netdevice.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/errno.h>
  33 #include <linux/init.h>
  34 #include <linux/netlink.h>
  35 #include <net/Space.h>
  36
  37 /* A unified ethernet device probe.  This is the easiest way to have every
  38  * ethernet adaptor have the name "eth[0123...]".
  39  */
  40
  41 struct devprobe2 {
  42         struct net_device *(*probe)(int unit);
  43         int status;     /* non-zero if autoprobe has failed */
  44 };
  45
  46 static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe)
  47 {
  48         struct net_device *dev;
  49
  50         for (; p->probe; p++) {
  51                 if (autoprobe && p->status)
  52                         continue;
  53                 dev = p->probe(unit);
  54                 if (!IS_ERR(dev))
  55                         return 0;
  56                 if (autoprobe)
  57                         p->status = PTR_ERR(dev);
  58         }
  59         return -ENODEV;
  60 }
  61
  62 /* ISA probes that touch addresses < 0x400 (including those that also
  63  * look for EISA/PCI cards in addition to ISA cards).
  64  */
  65 static struct devprobe2 isa_probes[] __initdata = {
  66 #if defined(CONFIG_HP100) && defined(CONFIG_ISA)        /* ISA, EISA */
  67         {hp100_probe, 0},
  68 #endif
  69 #ifdef CONFIG_3C515
  70         {tc515_probe, 0},
  71 #endif
  72 #ifdef CONFIG_ULTRA
  73         {ultra_probe, 0},
  74 #endif
  75 #ifdef CONFIG_WD80x3
  76         {wd_probe, 0},
  77 #endif
  78 #if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */
  79         {ne_probe, 0},
  80 #endif
  81 #ifdef CONFIG_LANCE             /* ISA/VLB (use pcnet32 for PCI cards) */
  82         {lance_probe, 0},
  83 #endif
  84 #ifdef CONFIG_SMC9194
  85         {smc_init, 0},
  86 #endif
  87 #ifdef CONFIG_CS89x0
  88 #ifndef CONFIG_CS89x0_PLATFORM
  89         {cs89x0_probe, 0},
  90 #endif
  91 #endif
  92 #if defined(CONFIG_MVME16x_NET) || defined(CONFIG_BVME6000_NET) /* Intel */
  93         {i82596_probe, 0},                                      /* I82596 */
  94 #endif
  95 #ifdef CONFIG_NI65
  96         {ni65_probe, 0},
  97 #endif
  98         {NULL, 0},
  99 };
 100
 101 static struct devprobe2 m68k_probes[] __initdata = {
 102 #ifdef CONFIG_ATARILANCE        /* Lance-based Atari ethernet boards */
 103         {atarilance_probe, 0},
 104 #endif
 105 #ifdef CONFIG_SUN3LANCE         /* sun3 onboard Lance chip */
 106         {sun3lance_probe, 0},
 107 #endif
 108 #ifdef CONFIG_SUN3_82586        /* sun3 onboard Intel 82586 chip */
 109         {sun3_82586_probe, 0},
 110 #endif
 111 #ifdef CONFIG_APNE              /* A1200 PCMCIA NE2000 */
 112         {apne_probe, 0},
 113 #endif
 114 #ifdef CONFIG_MVME147_NET       /* MVME147 internal Ethernet */
 115         {mvme147lance_probe, 0},
 116 #endif
 117         {NULL, 0},
 118 };
 119
 120 /* Unified ethernet device probe, segmented per architecture and
 121  * per bus interface. This drives the legacy devices only for now.
 122  */
 123
 124 static void __init ethif_probe2(int unit)
 125 {
 126         unsigned long base_addr = netdev_boot_base("eth", unit);
 127
 128         if (base_addr == 1)
 129                 return;
 130
 131         (void)(probe_list2(unit, m68k_probes, base_addr == 0) &&
 132                 probe_list2(unit, isa_probes, base_addr == 0));
 133 }
 134
 135 /*  Statically configured drivers -- order matters here. */
 136 static int __init net_olddevs_init(void)
 137 {
 138         int num;
 139
 140 #ifdef CONFIG_SBNI
 141         for (num = 0; num < 8; ++num)
 142                 sbni_probe(num);
 143 #endif
 144         for (num = 0; num < 8; ++num)
 145                 ethif_probe2(num);
 146
 147 #ifdef CONFIG_COPS
 148         cops_probe(0);
 149         cops_probe(1);
 150         cops_probe(2);
 151 #endif
 152 #ifdef CONFIG_LTPC
 153         ltpc_probe();
 154 #endif
 155
 156         return 0;
 157 }
 158
 159 device_initcall(net_olddevs_init);