names.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:3k
- /*
- * PCI Class and Device Name Tables
- *
- * Copyright 1993--1999 Drew Eckhardt, Frederic Potter,
- * David Mosberger-Tang, Martin Mares
- */
- #include <linux/config.h>
- #include <linux/types.h>
- #include <linux/kernel.h>
- #include <linux/pci.h>
- #include <linux/init.h>
- #ifdef CONFIG_PCI_NAMES
- struct pci_device_info {
- unsigned short device;
- unsigned short seen;
- const char *name;
- };
- struct pci_vendor_info {
- unsigned short vendor;
- unsigned short nr;
- const char *name;
- struct pci_device_info *devices;
- };
- /*
- * This is ridiculous, but we want the strings in
- * the .init section so that they don't take up
- * real memory.. Parse the same file multiple times
- * to get all the info.
- */
- #define VENDOR( vendor, name ) static char __vendorstr_##vendor[] __initdata = name;
- #define ENDVENDOR()
- #define DEVICE( vendor, device, name ) static char __devicestr_##vendor##device[] __initdata = name;
- #include "devlist.h"
- #define VENDOR( vendor, name ) static struct pci_device_info __devices_##vendor[] __initdata = {
- #define ENDVENDOR() };
- #define DEVICE( vendor, device, name ) { 0x##device, 0, __devicestr_##vendor##device },
- #include "devlist.h"
- static struct pci_vendor_info __initdata pci_vendor_list[] = {
- #define VENDOR( vendor, name ) { 0x##vendor, sizeof(__devices_##vendor) / sizeof(struct pci_device_info), __vendorstr_##vendor, __devices_##vendor },
- #define ENDVENDOR()
- #define DEVICE( vendor, device, name )
- #include "devlist.h"
- };
- #define VENDORS (sizeof(pci_vendor_list)/sizeof(struct pci_vendor_info))
- void __devinit pci_name_device(struct pci_dev *dev)
- {
- const struct pci_vendor_info *vendor_p = pci_vendor_list;
- int i = VENDORS;
- char *name = dev->name;
- do {
- if (vendor_p->vendor == dev->vendor)
- goto match_vendor;
- vendor_p++;
- } while (--i);
- /* Couldn't find either the vendor nor the device */
- sprintf(name, "PCI device %04x:%04x", dev->vendor, dev->device);
- return;
- match_vendor: {
- struct pci_device_info *device_p = vendor_p->devices;
- int i = vendor_p->nr;
- while (i > 0) {
- if (device_p->device == dev->device)
- goto match_device;
- device_p++;
- i--;
- }
- /* Ok, found the vendor, but unknown device */
- sprintf(name, "PCI device %04x:%04x (%s)", dev->vendor, dev->device, vendor_p->name);
- return;
- /* Full match */
- match_device: {
- char *n = name + sprintf(name, "%s %s", vendor_p->name, device_p->name);
- int nr = device_p->seen + 1;
- device_p->seen = nr;
- if (nr > 1)
- sprintf(n, " (#%d)", nr);
- }
- }
- }
- /*
- * Class names. Not in .init section as they are needed in runtime.
- */
- static u16 pci_class_numbers[] = {
- #define CLASS(x,y) 0x##x,
- #include "classlist.h"
- };
- static char *pci_class_names[] = {
- #define CLASS(x,y) y,
- #include "classlist.h"
- };
- char *
- pci_class_name(u32 class)
- {
- int i;
- for(i=0; i<sizeof(pci_class_numbers)/sizeof(pci_class_numbers[0]); i++)
- if (pci_class_numbers[i] == class)
- return pci_class_names[i];
- return NULL;
- }
- #else
- void __init pci_name_device(struct pci_dev *dev)
- {
- }
- char *
- pci_class_name(u32 class)
- {
- return NULL;
- }
- #endif /* CONFIG_PCI_NAMES */