oldproc.c

powerpc内核mpc8241linux系统下pci驱动程序

	      default:					return "Unknown class";
	}
}


static const char *pci_strvendor(unsigned int vendor)
{
	switch (vendor) {
	      case PCI_VENDOR_ID_COMPAQ:	return "Compaq";
	      case PCI_VENDOR_ID_NCR:		return "NCR";
	      case PCI_VENDOR_ID_ATI:		return "ATI";
	      case PCI_VENDOR_ID_VLSI:		return "VLSI";
	      case PCI_VENDOR_ID_ADL:		return "Avance Logic";
	      case PCI_VENDOR_ID_NS:		return "NS";
	      case PCI_VENDOR_ID_TSENG:		return "Tseng'Lab";
	      case PCI_VENDOR_ID_WEITEK:	return "Weitek";
	      case PCI_VENDOR_ID_DEC:		return "DEC";
	      case PCI_VENDOR_ID_CIRRUS:	return "Cirrus Logic";
	      case PCI_VENDOR_ID_IBM:		return "IBM";
	      case PCI_VENDOR_ID_WD:		return "Western Digital";
	      case PCI_VENDOR_ID_AMD:		return "AMD";
	      case PCI_VENDOR_ID_TRIDENT:	return "Trident";
	      case PCI_VENDOR_ID_AI:		return "Acer Incorporated";
	      case PCI_VENDOR_ID_MATROX:	return "Matrox";
	      case PCI_VENDOR_ID_CT:		return "Chips & Technologies";
	      case PCI_VENDOR_ID_MIRO:		return "Miro";
	      case PCI_VENDOR_ID_NEC:		return "NEC";
	      case PCI_VENDOR_ID_FD:		return "Future Domain";
	      case PCI_VENDOR_ID_SI:		return "Silicon Integrated Systems";
	      case PCI_VENDOR_ID_HP:		return "Hewlett Packard";
	      case PCI_VENDOR_ID_PCTECH:	return "PCTECH";
	      case PCI_VENDOR_ID_DPT:		return "DPT";
	      case PCI_VENDOR_ID_OPTI:		return "OPTi";
	      case PCI_VENDOR_ID_SGS:		return "SGS Thomson";
	      case PCI_VENDOR_ID_BUSLOGIC:	return "BusLogic";
	      case PCI_VENDOR_ID_TI:		return "Texas Instruments";
	      case PCI_VENDOR_ID_OAK: 		return "OAK";
	      case PCI_VENDOR_ID_WINBOND2:	return "Winbond";
	      case PCI_VENDOR_ID_MOTOROLA:	return "Motorola";
	      case PCI_VENDOR_ID_PROMISE:	return "Promise Technology";
	      case PCI_VENDOR_ID_N9:		return "Number Nine";
	      case PCI_VENDOR_ID_UMC:		return "UMC";
	      case PCI_VENDOR_ID_X:		return "X TECHNOLOGY";
	      case PCI_VENDOR_ID_PICOP:		return "PicoPower";
	      case PCI_VENDOR_ID_APPLE:		return "Apple";
	      case PCI_VENDOR_ID_NEXGEN:	return "Nexgen";
	      case PCI_VENDOR_ID_QLOGIC:	return "Q Logic";
	      case PCI_VENDOR_ID_CYRIX:		return "Cyrix";
	      case PCI_VENDOR_ID_LEADTEK:	return "Leadtek Research";
	      case PCI_VENDOR_ID_CONTAQ:	return "Contaq";
	      case PCI_VENDOR_ID_FOREX:		return "Forex";
	      case PCI_VENDOR_ID_OLICOM:	return "Olicom";
	      case PCI_VENDOR_ID_SUN:		return "Sun Microsystems";
	      case PCI_VENDOR_ID_CMD:		return "CMD";
	      case PCI_VENDOR_ID_VISION:	return "Vision";
	      case PCI_VENDOR_ID_BROOKTREE:	return "Brooktree";
	      case PCI_VENDOR_ID_SIERRA:	return "Sierra";
	      case PCI_VENDOR_ID_ACC:		return "ACC MICROELECTRONICS";
	      case PCI_VENDOR_ID_WINBOND:	return "Winbond";
	      case PCI_VENDOR_ID_DATABOOK:	return "Databook";
	      case PCI_VENDOR_ID_PLX:		return "PLX";
	      case PCI_VENDOR_ID_MADGE:		return "Madge Networks";
	      case PCI_VENDOR_ID_3COM:		return "3Com";
	      case PCI_VENDOR_ID_SMC:		return "SMC";
	      case PCI_VENDOR_ID_AL:		return "Acer Labs";
	      case PCI_VENDOR_ID_MITSUBISHI:	return "Mitsubishi";
	      case PCI_VENDOR_ID_SURECOM:	return "Surecom";
	      case PCI_VENDOR_ID_NEOMAGIC:	return "Neomagic";
	      case PCI_VENDOR_ID_ASP:		return "Advanced System Products";
	      case PCI_VENDOR_ID_MACRONIX:	return "Macronix";
	      case PCI_VENDOR_ID_CERN:		return "CERN";
	      case PCI_VENDOR_ID_NVIDIA:	return "NVidia";
	      case PCI_VENDOR_ID_IMS:		return "IMS";
	      case PCI_VENDOR_ID_TEKRAM2:	return "Tekram";
	      case PCI_VENDOR_ID_TUNDRA:	return "Tundra";
	      case PCI_VENDOR_ID_AMCC:		return "AMCC";
	      case PCI_VENDOR_ID_INTERG:	return "Intergraphics";
	      case PCI_VENDOR_ID_REALTEK:	return "Realtek";
	      case PCI_VENDOR_ID_TRUEVISION:	return "Truevision";
	      case PCI_VENDOR_ID_INIT:		return "Initio Corp";
	      case PCI_VENDOR_ID_TTI:		return "Triones Technologies, Inc.";
	      case PCI_VENDOR_ID_VIA:		return "VIA Technologies";
	      case PCI_VENDOR_ID_SMC2:		return "SMC";
	      case PCI_VENDOR_ID_VORTEX:	return "VORTEX";
	      case PCI_VENDOR_ID_EF:		return "Efficient Networks";
	      case PCI_VENDOR_ID_FORE:		return "Fore Systems";
	      case PCI_VENDOR_ID_IMAGINGTECH:	return "Imaging Technology";
	      case PCI_VENDOR_ID_PHILIPS:	return "Philips";
	      case PCI_VENDOR_ID_CYCLONE:	return "Cyclone";
	      case PCI_VENDOR_ID_ALLIANCE:	return "Alliance";
	      case PCI_VENDOR_ID_VMIC:		return "VMIC";
	      case PCI_VENDOR_ID_DIGI:		return "Digi Intl.";
	      case PCI_VENDOR_ID_MUTECH:	return "Mutech";
	      case PCI_VENDOR_ID_RENDITION:	return "Rendition";
	      case PCI_VENDOR_ID_TOSHIBA:	return "Toshiba";
	      case PCI_VENDOR_ID_RICOH:		return "Ricoh";
	      case PCI_VENDOR_ID_ARTOP:		return "Artop Electronics";
	      case PCI_VENDOR_ID_ZEITNET:	return "ZeitNet";
	      case PCI_VENDOR_ID_OMEGA:		return "Omega Micro";
	      case PCI_VENDOR_ID_LITEON:	return "LiteOn";
	      case PCI_VENDOR_ID_NP:		return "Network Peripherals";
	      case PCI_VENDOR_ID_ATT:		return "Lucent (ex-AT&T) Microelectronics";
	      case PCI_VENDOR_ID_SPECIALIX:	return "Specialix";
	      case PCI_VENDOR_ID_AURAVISION:	return "Auravision";
	      case PCI_VENDOR_ID_IKON:		return "Ikon";
	      case PCI_VENDOR_ID_ZORAN:		return "Zoran";
	      case PCI_VENDOR_ID_KINETIC:	return "Kinetic";
	      case PCI_VENDOR_ID_COMPEX:	return "Compex";
	      case PCI_VENDOR_ID_RP:		return "Comtrol";
	      case PCI_VENDOR_ID_CYCLADES:	return "Cyclades";
	      case PCI_VENDOR_ID_ESSENTIAL:	return "Essential Communications";
	      case PCI_VENDOR_ID_O2:		return "O2 Micro";
	      case PCI_VENDOR_ID_3DFX:		return "3Dfx";
	      case PCI_VENDOR_ID_SIGMADES:	return "Sigma Designs";
	      case PCI_VENDOR_ID_CCUBE:		return "C-Cube";
	      case PCI_VENDOR_ID_DIPIX:		return "Dipix";
	      case PCI_VENDOR_ID_STALLION:	return "Stallion Technologies";
	      case PCI_VENDOR_ID_OPTIBASE:	return "Optibase";
	      case PCI_VENDOR_ID_SATSAGEM:	return "SatSagem";
	      case PCI_VENDOR_ID_HUGHES:	return "Hughes";
	      case PCI_VENDOR_ID_ENSONIQ:	return "Ensoniq";
	      case PCI_VENDOR_ID_ALTEON:	return "Alteon";
	      case PCI_VENDOR_ID_PICTUREL:	return "Picture Elements";
	      case PCI_VENDOR_ID_NVIDIA_SGS:	return "NVidia/SGS Thomson";
	      case PCI_VENDOR_ID_CBOARDS:	return "ComputerBoards";
	      case PCI_VENDOR_ID_SYMPHONY:	return "Symphony";
	      case PCI_VENDOR_ID_TEKRAM:	return "Tekram";
	      case PCI_VENDOR_ID_3DLABS:	return "3Dlabs";
	      case PCI_VENDOR_ID_AVANCE:	return "Avance";
	      case PCI_VENDOR_ID_NETVIN:	return "NetVin";
	      case PCI_VENDOR_ID_S3:		return "S3 Inc.";
	      case PCI_VENDOR_ID_DCI:		return "Decision Computer Int.";
	      case PCI_VENDOR_ID_INTEL:		return "Intel";
	      case PCI_VENDOR_ID_KTI:		return "KTI";
	      case PCI_VENDOR_ID_ADAPTEC:	return "Adaptec";
	      case PCI_VENDOR_ID_ADAPTEC2:	return "Adaptec";
	      case PCI_VENDOR_ID_ATRONICS:	return "Atronics";
	      case PCI_VENDOR_ID_TIGERJET:	return "TigerJet";
	      case PCI_VENDOR_ID_ARK:		return "ARK Logic";
	      default:				return "Unknown vendor";
	}
}


static const char *pci_strdev(unsigned int vendor, unsigned int device)
{
	struct pci_dev_info *info;

	info = 	pci_lookup_dev(vendor, device);
	return info ? info->name : "Unknown device";
}


/*
 * Convert some of the configuration space registers of the device at
 * address (bus,devfn) into a string (possibly several lines each).
 * The configuration string is stored starting at buf[len].  If the
 * string would exceed the size of the buffer (SIZE), 0 is returned.
 */
static int sprint_dev_config(struct pci_dev *dev, char *buf, int size)
{
	unsigned long base;
	unsigned int class_rev, bus, devfn;
	unsigned short vendor, device, status;
	unsigned char bist, latency, min_gnt, max_lat;
	int reg, len = 0;
	const char *str;

	bus   = dev->bus->number;
	devfn = dev->devfn;

	pcibios_read_config_dword(bus, devfn, PCI_CLASS_REVISION, &class_rev);
	pcibios_read_config_word (bus, devfn, PCI_VENDOR_ID, &vendor);
	pcibios_read_config_word (bus, devfn, PCI_DEVICE_ID, &device);
	pcibios_read_config_word (bus, devfn, PCI_STATUS, &status);
	pcibios_read_config_byte (bus, devfn, PCI_BIST, &bist);
	pcibios_read_config_byte (bus, devfn, PCI_LATENCY_TIMER, &latency);
	pcibios_read_config_byte (bus, devfn, PCI_MIN_GNT, &min_gnt);
	pcibios_read_config_byte (bus, devfn, PCI_MAX_LAT, &max_lat);
	if (len + 80 > size) {
		return -1;
	}
	len += sprintf(buf + len, "  Bus %2d, device %3d, function %2d:\n",
		       bus, PCI_SLOT(devfn), PCI_FUNC(devfn));

	if (len + 80 > size) {
		return -1;
	}
	len += sprintf(buf + len, "    %s: %s %s (rev %d).\n      ",
		       pci_strclass(class_rev >> 8), pci_strvendor(vendor),
		       pci_strdev(vendor, device), class_rev & 0xff);

	if (!pci_lookup_dev(vendor, device)) {
		len += sprintf(buf + len,
			       "Vendor id=%x. Device id=%x.\n      ",
			       vendor, device);
	}

	str = 0;	/* to keep gcc shut... */
	switch (status & PCI_STATUS_DEVSEL_MASK) {
	      case PCI_STATUS_DEVSEL_FAST:   str = "Fast devsel.  "; break;
	      case PCI_STATUS_DEVSEL_MEDIUM: str = "Medium devsel.  "; break;
	      case PCI_STATUS_DEVSEL_SLOW:   str = "Slow devsel.  "; break;
	}
	if (len + strlen(str) > size) {
		return -1;
	}
	len += sprintf(buf + len, str);

	if (status & PCI_STATUS_FAST_BACK) {
#		define fast_b2b_capable	"Fast back-to-back capable.  "
		if (len + strlen(fast_b2b_capable) > size) {
			return -1;
		}
		len += sprintf(buf + len, fast_b2b_capable);
#		undef fast_b2b_capable
	}

	if (bist & PCI_BIST_CAPABLE) {
#		define BIST_capable	"BIST capable.  "
		if (len + strlen(BIST_capable) > size) {
			return -1;
		}
		len += sprintf(buf + len, BIST_capable);
#		undef BIST_capable
	}

	if (dev->irq) {
		if (len + 40 > size) {
			return -1;
		}
		len += sprintf(buf + len, "IRQ %d.  ", dev->irq);
	}

	if (dev->master) {
		if (len + 80 > size) {
			return -1;
		}
		len += sprintf(buf + len, "Master Capable.  ");
		if (latency)
		  len += sprintf(buf + len, "Latency=%d.  ", latency);
		else
		  len += sprintf(buf + len, "No bursts.  ");
		if (min_gnt)
		  len += sprintf(buf + len, "Min Gnt=%d.", min_gnt);
		if (max_lat)
		  len += sprintf(buf + len, "Max Lat=%d.", max_lat);
	}

	for (reg = 0; reg < 6; reg++) {
		if (len + 40 > size) {
			return -1;
		}
		base = dev->base_address[reg];
		if (!base)
			continue;

		if (base & PCI_BASE_ADDRESS_SPACE_IO) {
			len += sprintf(buf + len,
				       "\n      I/O at 0x%lx [0x%lx].",
				       base & PCI_BASE_ADDRESS_IO_MASK,
				       dev->base_address[reg]);
		} else {
			const char *pref, *type = "unknown";

			if (base & PCI_BASE_ADDRESS_MEM_PREFETCH) {
				pref = "P";
			} else {
				pref = "Non-p";
			}
			switch (base & PCI_BASE_ADDRESS_MEM_TYPE_MASK) {
			      case PCI_BASE_ADDRESS_MEM_TYPE_32:
				type = "32 bit"; break;
			      case PCI_BASE_ADDRESS_MEM_TYPE_1M:
				type = "20 bit"; break;
			      case PCI_BASE_ADDRESS_MEM_TYPE_64:
				type = "64 bit"; break;
			}
			len += sprintf(buf + len,
				       "\n      %srefetchable %s memory at "
				       "0x%lx [0x%lx].", pref, type,
				       base & PCI_BASE_ADDRESS_MEM_MASK,
				       dev->base_address[reg]);
		}
	}

	len += sprintf(buf + len, "\n");
	return len;
}


/*
 * Return list of PCI devices as a character string for /proc/pci.
 * BUF is a buffer that is PAGE_SIZE bytes long.
 */
int get_pci_list(char *buf)
{
	int nprinted, len, size;
	struct pci_dev *dev;
	static int complained = 0;
#	define MSG "\nwarning: page-size limit reached!\n"

	if (!complained) {
		complained++;
		printk(KERN_INFO "%s uses obsolete /proc/pci interface\n",
			current->comm);
	}

	/* reserve same for truncation warning message: */
	size  = PAGE_SIZE - (strlen(MSG) + 1);
	len   = sprintf(buf, "PCI devices found:\n");

	for (dev = pci_devices; dev; dev = dev->next) {
		nprinted = sprint_dev_config(dev, buf + len, size - len);
		if (nprinted < 0) {
			return len + sprintf(buf + len, MSG);
		}
		len += nprinted;
	}
	return len;
}

static struct proc_dir_entry proc_old_pci = {
	PROC_PCI, 3, "pci",
	S_IFREG | S_IRUGO, 1, 0, 0,
	0, &proc_array_inode_operations
};

__initfunc(void proc_old_pci_init(void))
{
	proc_register(&proc_root, &proc_old_pci);
}

#endif /* CONFIG_PROC_FS */