commands/lspci.c

   1 /* lspci.c - List PCI devices.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2008, 2009  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/pci.h>
  21 #include <grub/dl.h>
  22 #include <grub/misc.h>
  23 #include <grub/command.h>
  24
  25 struct grub_pci_classname
  26 {
  27   int class;
  28   int subclass;
  29   char *desc;
  30 };
  31
  32 static const struct grub_pci_classname grub_pci_classes[] =
  33   {
  34     { 0, 0, "" },
  35     { 1, 0, "SCSI Controller" },
  36     { 1, 1, "IDE Controller" },
  37     { 1, 2, "Floppy Controller" },
  38     { 1, 3, "IPI Controller" },
  39     { 1, 4, "RAID Controller" },
  40     { 1, 6, "SATA Controller" },
  41     { 1, 0x80, "Mass storage Controller" },
  42     { 2, 0, "Ethernet Controller" },
  43     { 2, 1, "Token Ring Controller" },
  44     { 2, 2, "FDDI Controller" },
  45     { 2, 3, "ATM Controller" },
  46     { 2, 4, "ISDN Controller" },
  47     { 2, 0x80, "Network controller" },
  48     { 3, 0, "VGA Controller" },
  49     { 3, 1, "XGA Controller" },
  50     { 3, 2, "3D Controller" },
  51     { 3, 0x80, "Display Controller" },
  52     { 4, 0, "Multimedia Video Device" },
  53     { 4, 1, "Multimedia Audio Device" },
  54     { 4, 2, "Multimedia Telephony Device" },
  55     { 4, 0x80, "Multimedia device" },
  56     { 5, 0, "RAM Controller" },
  57     { 5, 1, "Flash Memory Controller" },
  58     { 5, 0x80, "Memory Controller" },
  59     { 6, 0, "Host Bridge" },
  60     { 6, 1, "ISA Bridge" },
  61     { 6, 2, "EISA Bride" },
  62     { 6, 3, "MCA Bridge" },
  63     { 6, 4, "PCI-PCI Bridge" },
  64     { 6, 5, "PCMCIA Bridge" },
  65     { 6, 6, "NuBus Bridge" },
  66     { 6, 7, "CardBus Bridge" },
  67     { 6, 8, "Raceway Bridge" },
  68     { 6, 0x80, "Unknown Bridge" },
  69     { 7, 0x80, "Communication controller" },
  70     { 8, 0x80, "System hardware" },
  71     { 9, 0, "Keyboard Controller" },
  72     { 9, 1, "Digitizer" },
  73     { 9, 2, "Mouse Controller" },
  74     { 9, 3, "Scanner Controller" },
  75     { 9, 4, "Gameport Controller" },
  76     { 9, 0x80, "Unknown Input Device" },
  77     { 10, 0, "Generic Docking Station" },
  78     { 10, 0x80, "Unknown Docking Station" },
  79     { 11, 0, "80386 Processor" },
  80     { 11, 1, "80486 Processor" },
  81     { 11, 2, "Pentium Processor" },
  82     { 11, 0x10, "Alpha Processor" },
  83     { 11, 0x20, "PowerPC Processor" },
  84     { 11, 0x30, "MIPS Processor" },
  85     { 11, 0x40, "Co-Processor" },
  86     { 11, 0x80, "Unknown Processor" },
  87     { 12, 0x80, "Serial Bus Controller" },
  88     { 13, 0x80, "Wireless Controller" },
  89     { 14, 0, "I2O" },
  90     { 15, 0, "IrDA Controller" },
  91     { 15, 1, "Consumer IR" },
  92     { 15, 0x10, "RF-Controller" },
  93     { 15, 0x80, "Satellite Communication Controller" },
  94     { 16, 0, "Network Decryption" },
  95     { 16, 1, "Entertainment Decryption" },
  96     { 16, 0x80, "Unknown Decryption Controller" },
  97     { 17, 0, "Digital IO Module" },
  98     { 17, 0x80, "Unknown Data Input System" },
  99     { 0, 0, 0 },
 100   };
 101
 102 static const char *
 103 grub_pci_get_class (int class, int subclass)
 104 {
 105   const struct grub_pci_classname *curr = grub_pci_classes;
 106
 107   while (curr->desc)
 108     {
 109       if (curr->class == class && curr->subclass == subclass)
 110         return curr->desc;
 111       curr++;
 112     }
 113
 114   return 0;
 115 }
 116
 117 static int NESTED_FUNC_ATTR
 118 grub_lspci_iter (int bus, int dev, int func, grub_pci_id_t pciid)
 119 {
 120   grub_uint32_t class;
 121   const char *sclass;
 122   grub_pci_address_t addr;
 123
 124   grub_printf ("%02x:%02x.%x %04x:%04x", bus, dev, func, pciid & 0xFFFF,
 125                pciid >> 16);
 126   addr = grub_pci_make_address (bus, dev, func, 2);
 127   class = grub_pci_read (addr);
 128
 129   /* Lookup the class name, if there isn't a specific one,
 130      retry with 0x80 to get the generic class name.  */
 131   sclass = grub_pci_get_class (class >> 24, (class >> 16) & 0xFF);
 132   if (! sclass)
 133     sclass = grub_pci_get_class (class >> 24, 0x80);
 134   if (! sclass)
 135     sclass = "";
 136
 137   grub_printf (" [%04x] %s", (class >> 16) & 0xffff, sclass);
 138
 139   grub_uint8_t pi = (class >> 8) & 0xff;
 140   if (pi)
 141     grub_printf (" [PI %02x]", pi);
 142
 143   grub_printf ("\n");
 144
 145   return 0;
 146 }
 147
 148 static grub_err_t
 149 grub_cmd_lspci (grub_command_t cmd __attribute__ ((unused)),
 150                 int argc __attribute__ ((unused)),
 151                 char **args __attribute__ ((unused)))
 152 {
 153   grub_pci_iterate (grub_lspci_iter);
 154   return GRUB_ERR_NONE;
 155 }
 156
 157 static grub_command_t cmd;
 158
 159 GRUB_MOD_INIT(pci)
 160 {
 161   cmd = grub_register_command ("lspci", grub_cmd_lspci,
 162                                0, "List PCI devices");
 163 }
 164
 165 GRUB_MOD_FINI(pci)
 166 {
 167   grub_unregister_command (cmd);
 168 }