pci.c

GNU Mach 微内核源代码, 基于美国卡内基美隆大学的 Mach 研究项目

	      case PCI_CLASS_STORAGE_IPI:		return "IPI bus controller";
	      case PCI_CLASS_STORAGE_RAID:		return "RAID bus controller";
	      case PCI_CLASS_STORAGE_OTHER:		return "Unknown mass storage controller";

	      case PCI_CLASS_NETWORK_ETHERNET:		return "Ethernet controller";
	      case PCI_CLASS_NETWORK_TOKEN_RING:	return "Token ring network controller";
	      case PCI_CLASS_NETWORK_FDDI:		return "FDDI network controller";
	      case PCI_CLASS_NETWORK_ATM:		return "ATM network controller";
	      case PCI_CLASS_NETWORK_OTHER:		return "Network controller";

	      case PCI_CLASS_DISPLAY_VGA:		return "VGA compatible controller";
	      case PCI_CLASS_DISPLAY_XGA:		return "XGA compatible controller";
	      case PCI_CLASS_DISPLAY_OTHER:		return "Display controller";

	      case PCI_CLASS_MULTIMEDIA_VIDEO:		return "Multimedia video controller";
	      case PCI_CLASS_MULTIMEDIA_AUDIO:		return "Multimedia audio controller";
	      case PCI_CLASS_MULTIMEDIA_OTHER:		return "Multimedia controller";

	      case PCI_CLASS_MEMORY_RAM:		return "RAM memory";
	      case PCI_CLASS_MEMORY_FLASH:		return "FLASH memory";
	      case PCI_CLASS_MEMORY_OTHER:		return "Memory";

	      case PCI_CLASS_BRIDGE_HOST:		return "Host bridge";
	      case PCI_CLASS_BRIDGE_ISA:		return "ISA bridge";
	      case PCI_CLASS_BRIDGE_EISA:		return "EISA bridge";
	      case PCI_CLASS_BRIDGE_MC:			return "MicroChannel bridge";
	      case PCI_CLASS_BRIDGE_PCI:		return "PCI bridge";
	      case PCI_CLASS_BRIDGE_PCMCIA:		return "PCMCIA bridge";
	      case PCI_CLASS_BRIDGE_NUBUS:		return "NuBus bridge";
	      case PCI_CLASS_BRIDGE_CARDBUS:		return "CardBus bridge";
	      case PCI_CLASS_BRIDGE_OTHER:		return "Bridge";

	      case PCI_CLASS_COMMUNICATION_SERIAL:	return "Serial controller";
	      case PCI_CLASS_COMMUNICATION_PARALLEL:	return "Parallel controller";
	      case PCI_CLASS_COMMUNICATION_OTHER:	return "Communication controller";

	      case PCI_CLASS_SYSTEM_PIC:		return "PIC";
	      case PCI_CLASS_SYSTEM_DMA:		return "DMA controller";
	      case PCI_CLASS_SYSTEM_TIMER:		return "Timer";
	      case PCI_CLASS_SYSTEM_RTC:		return "RTC";
	      case PCI_CLASS_SYSTEM_OTHER:		return "System peripheral";

	      case PCI_CLASS_INPUT_KEYBOARD:		return "Keyboard controller";
	      case PCI_CLASS_INPUT_PEN:			return "Digitizer Pen";
	      case PCI_CLASS_INPUT_MOUSE:		return "Mouse controller";
	      case PCI_CLASS_INPUT_OTHER:		return "Input device controller";

	      case PCI_CLASS_DOCKING_GENERIC:		return "Generic Docking Station";
	      case PCI_CLASS_DOCKING_OTHER:		return "Docking Station";

	      case PCI_CLASS_PROCESSOR_386:		return "386";
	      case PCI_CLASS_PROCESSOR_486:		return "486";
	      case PCI_CLASS_PROCESSOR_PENTIUM:		return "Pentium";
	      case PCI_CLASS_PROCESSOR_ALPHA:		return "Alpha";
	      case PCI_CLASS_PROCESSOR_POWERPC:		return "Power PC";
	      case PCI_CLASS_PROCESSOR_CO:		return "Co-processor";

	      case PCI_CLASS_SERIAL_FIREWIRE:		return "FireWire (IEEE 1394)";
	      case PCI_CLASS_SERIAL_ACCESS:		return "ACCESS Bus";
	      case PCI_CLASS_SERIAL_SSA:		return "SSA";
	      case PCI_CLASS_SERIAL_USB:		return "USB Controller";
	      case PCI_CLASS_SERIAL_FIBER:		return "Fiber Channel";

	      default:					return "Unknown class";
	}
}


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 "Advance 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_APPLE:		return "Apple";
	      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_NEXGEN:	return "Nexgen";
	      case PCI_VENDOR_ID_QLOGIC:	return "Q Logic";
	      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_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_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_NEOMAGIC:	return "Neomagic";
	      case PCI_VENDOR_ID_ASP:		return "Advanced System Products";
	      case PCI_VENDOR_ID_CERN:		return "CERN";
	      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_VIA:		return "VIA Technologies";
	      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_PLX:		return "PLX";
	      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_ZEITNET:	return "ZeitNet";
	      case PCI_VENDOR_ID_OMEGA:		return "Omega Micro";
	      case PCI_VENDOR_ID_NP:		return "Network Peripherals";
	      case PCI_VENDOR_ID_SPECIALIX:	return "Specialix";
	      case PCI_VENDOR_ID_IKON:		return "Ikon";
	      case PCI_VENDOR_ID_ZORAN:		return "Zoran";
	      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_3DFX:		return "3Dfx";
	      case PCI_VENDOR_ID_SIGMADES:	return "Sigma Designs";
	      case PCI_VENDOR_ID_OPTIBASE:	return "Optibase";
	      case PCI_VENDOR_ID_NVIDIA_SGS:    return "NVidia/SGS Thomson";
 	      case PCI_VENDOR_ID_ENSONIQ:	return "Ensoniq";	
	      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_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_ARK:		return "ARK Logic";
	      case PCI_VENDOR_ID_ASIX:		return "ASIX";
	      case PCI_VENDOR_ID_LITEON:	return "Lite-on";
	      default:				return "Unknown vendor";
	}
}


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";
}



/*
 * Turn on/off PCI bridge optimization. This should allow benchmarking.
 */
static void burst_bridge(unsigned char bus, unsigned char devfn,
			 unsigned char pos, int turn_on)
{
#ifdef CONFIG_PCI_OPTIMIZE
	struct bridge_mapping_type *bmap;
	unsigned char val;
	int i;

	pos *= NUM_OPTIMIZATIONS;
	printk("PCI bridge optimization.\n");
	for (i = 0; i < NUM_OPTIMIZATIONS; i++) {
		printk("    %s: ", bridge_optimization[i].type);
		bmap = &bridge_mapping[pos + i];
		if (!bmap->addr) {
			printk("Not supported.");
		} else {
			pcibios_read_config_byte(bus, devfn, bmap->addr, &val);
			if ((val & bmap->mask) == bmap->value) {
				printk("%s.", bridge_optimization[i].on);
				if (!turn_on) {
					pcibios_write_config_byte(bus, devfn,
								  bmap->addr,
								  (val | bmap->mask)
								  - bmap->value);
					printk("Changed!  Now %s.", bridge_optimization[i].off);
				}
			} else {
				printk("%s.", bridge_optimization[i].off);
				if (turn_on) {
					pcibios_write_config_byte(bus, devfn,
								  bmap->addr,
								  (val & (0xff - bmap->mask))
								  + bmap->value);
					printk("Changed!  Now %s.", bridge_optimization[i].on);
				}
			}
		}
		printk("\n");
	}
#endif /* CONFIG_PCI_OPTIMIZE */
}


/*
 * 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 l, class_rev, bus, devfn, last_reg;
	unsigned short vendor, device, status;
	unsigned char bist, latency, min_gnt, max_lat, hdr_type;
	int reg, len = 0;
	const char *str;

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

	pcibios_read_config_byte (bus, devfn, PCI_HEADER_TYPE, &hdr_type);
	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)