i386/linux/linux-2.3.21/drivers/pci/names.c

   1 /*
   2  *      $Id: oldproc.c,v 1.24 1998/10/11 15:13:04 mj Exp $
   3  *
   4  *      Backward-compatible procfs interface for PCI.
   5  *
   6  *      Copyright 1993, 1994, 1995, 1997 Drew Eckhardt, Frederic Potter,
   7  *      David Mosberger-Tang, Martin Mares
   8  */
   9
  10 #include <linux/types.h>
  11 #include <linux/kernel.h>
  12 #include <linux/pci.h>
  13 #include <linux/init.h>
  14
  15 struct pci_device_info {
  16         unsigned short device;
  17         unsigned short seen;
  18         const char *name;
  19 };
  20
  21 struct pci_vendor_info {
  22         unsigned short vendor;
  23         unsigned short nr;
  24         const char *name;
  25         struct pci_device_info *devices;
  26 };
  27
  28 /*
  29  * This is ridiculous, but we want the strings in
  30  * the .init section so that they don't take up
  31  * real memory.. Parse the same file multiple times
  32  * to get all the info.
  33  */
  34 #define VENDOR( vendor, name )          static const char __vendorstr_##vendor[] __initdata = name;
  35 #define ENDVENDOR()
  36 #define DEVICE( vendor, device, name )  static const char __devicestr_##vendor##device[] __initdata = name;
  37 #include "devlist.h"
  38
  39
  40 #define VENDOR( vendor, name )          static struct pci_device_info __devices_##vendor[] __initdata = {
  41 #define ENDVENDOR()                     };
  42 #define DEVICE( vendor, device, name )  { PCI_DEVICE_ID_##device, 0, __devicestr_##vendor##device },
  43 #include "devlist.h"
  44
  45 static const struct pci_vendor_info __initdata pci_vendor_list[] = {
  46 #define VENDOR( vendor, name )          { PCI_VENDOR_ID_##vendor, sizeof(__devices_##vendor) / sizeof(struct pci_device_info), __vendorstr_##vendor, __devices_##vendor },
  47 #define ENDVENDOR()
  48 #define DEVICE( vendor, device, name )
  49 #include "devlist.h"
  50 };
  51
  52 #define VENDORS (sizeof(pci_vendor_list)/sizeof(struct pci_vendor_info))
  53
  54 void __init pci_name_device(struct pci_dev *dev)
  55 {
  56         const struct pci_vendor_info *vendor_p = pci_vendor_list;
  57         int i = VENDORS;
  58         char *name = dev->name;
  59
  60         do {
  61                 if (vendor_p->vendor == dev->vendor)
  62                         goto match_vendor;
  63                 vendor_p++;
  64         } while (--i);
  65
  66         /* Couldn't find either the vendor nor the device */
  67         sprintf(name, "PCI device %04x:%04x", dev->vendor, dev->device);
  68         return;
  69
  70         match_vendor: {
  71                 struct pci_device_info *device_p = vendor_p->devices;
  72                 int i = vendor_p->nr;
  73
  74                 while (i > 0) {
  75                         if (device_p->device == dev->device)
  76                                 goto match_device;
  77                         device_p++;
  78                         i--;
  79                 }
  80
  81                 /* Ok, found the vendor, but unknown device */
  82                 sprintf(name, "PCI device %04x:%04x (%s)", dev->vendor, dev->device, vendor_p->name);
  83                 return;
  84
  85                 /* Full match */
  86                 match_device: {
  87                         char *n = name + sprintf(name, "%s %s", vendor_p->name, device_p->name);
  88                         int nr = device_p->seen + 1;
  89                         device_p->seen = nr;
  90                         if (nr > 1)
  91                                 sprintf(n, " (#%d)", nr);
  92                 }
  93         }
  94 }